CN116726800A - Vertical spray granulation device and method - Google Patents
Vertical spray granulation device and method Download PDFInfo
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- CN116726800A CN116726800A CN202310755633.2A CN202310755633A CN116726800A CN 116726800 A CN116726800 A CN 116726800A CN 202310755633 A CN202310755633 A CN 202310755633A CN 116726800 A CN116726800 A CN 116726800A
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- 239000007921 spray Substances 0.000 title claims abstract description 64
- 238000005469 granulation Methods 0.000 title claims abstract description 56
- 230000003179 granulation Effects 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 103
- 238000001035 drying Methods 0.000 claims abstract description 90
- 238000007599 discharging Methods 0.000 claims abstract description 54
- 238000002955 isolation Methods 0.000 claims abstract description 40
- 239000006185 dispersion Substances 0.000 claims abstract description 36
- 238000007664 blowing Methods 0.000 claims abstract description 27
- 238000000465 moulding Methods 0.000 claims abstract 2
- 239000002245 particle Substances 0.000 claims description 66
- 230000003139 buffering effect Effects 0.000 claims description 64
- 239000000919 ceramic Substances 0.000 claims description 50
- 238000011084 recovery Methods 0.000 claims description 48
- 230000017525 heat dissipation Effects 0.000 claims description 33
- 239000007788 liquid Substances 0.000 claims description 29
- 230000009471 action Effects 0.000 claims description 23
- 238000007493 shaping process Methods 0.000 claims description 21
- 230000008569 process Effects 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 18
- 239000000428 dust Substances 0.000 claims description 15
- 230000000630 rising effect Effects 0.000 claims description 10
- 239000002918 waste heat Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000000889 atomisation Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000010981 drying operation Methods 0.000 claims description 6
- 125000004122 cyclic group Chemical group 0.000 claims 2
- 238000007711 solidification Methods 0.000 claims 1
- 230000008023 solidification Effects 0.000 claims 1
- 125000006850 spacer group Chemical group 0.000 claims 1
- 238000005728 strengthening Methods 0.000 claims 1
- 238000004064 recycling Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000003031 feeding effect Effects 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
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Abstract
The invention relates to a vertical spray granulation device and a method, wherein a plurality of spray heads are communicated in a display shape in the circumferential direction of the outer side of a dispersion granulator, a forming receiving sleeve is sleeved on the inner wall of the top of the vertical granulation tower, a backflow dispersion cavity is arranged between the forming receiving sleeve and the dispersion granulator, a longitudinal isolation sleeve is fixedly arranged at the bottom of the forming receiving sleeve, a negative pressure suction cavity is arranged between the longitudinal isolation sleeve and the outer wall of the vertical granulation tower, a discharging sleeve with the top connected with the bottom of the forming receiving sleeve is arranged in the longitudinal isolation sleeve, a cyclone cavity is arranged between the outer part of the discharging sleeve and the inner wall of the longitudinal isolation sleeve, a forming cavity is arranged at the top of the inner wall of the discharging sleeve, the bottom of the discharging sleeve extends to the outer side of the bottom of the vertical granulation tower, and a blanking buffer drying device is arranged at the bottom of the longitudinal isolation sleeve and the middle of the discharging sleeve; through the unique design of the upward blowing and the lower suction heat circulation mode, the heat energy is efficiently utilized, and meanwhile, the full drying of the materials and the heat discharge after the molding are realized.
Description
Technical Field
The invention relates to the field of special equipment for ceramic product production, in particular to equipment for producing electronic ceramic particles, and particularly relates to a vertical spray granulation device and method used in the process of producing electronic ceramic balls.
Background
Electronic ceramics are ceramics that can utilize electric and magnetic properties in the electronics industry. Electronic ceramics are ceramics with new functions finally obtained through precise control of surfaces, grain boundaries and dimensional structures. Can be widely applied to energy sources, household appliances, automobiles and the like. The preparation process of the electronic ceramic comprises a granulating process, and most of the currently adopted granulating processes are spray granulation. Spraying granulation is a granulation method in which powder slurry or solution is sprayed into a granulation tower, and the powder slurry or solution is dried and agglomerated under the action of spraying hot air, so that spherical granules are obtained. The method is widely used for producing particles with various particle sizes, and has the advantages of good particle ball precision and uniform particles.
Spray granulation can be classified into horizontal concurrent flow type, vertical descending concurrent flow type, vertical ascending countercurrent type and vertical descending mixed flow type according to the flow direction of hot air. The horizontal concurrent flow type hot air and spray flow water sprayed by the spray nozzle flow into the tower in a horizontal mode, the rotary reflux is formed in the tower, tail gas is discharged out of the drying system, and dry particles are accumulated at the bottom of the tower and then sent out by the screw conveyor. The vertical downward flow-combining hot air is dried by vertical rotation descending of the tower top and right-angle contact with scattered liquid drops, the hot air is discharged out of the system through dust removal, and the dried particles are sent out from the lower part of the tower. The vertical upward countercurrent hot air enters from the bottom of the tower, the liquid material is sprayed from the top of the tower through a pressure nozzle, the tail gas is discharged from the top of the tower out of the system, and the finished product is taken out from the bottom of the tower. The atomizer of the vertical descending mixed flow type is arranged in the middle of the granulator and sprays from bottom to top, hot air is introduced from the top of the tower, sprayed materials are firstly in countercurrent contact with hot air for pre-drying, then the hot air and the materials flow downwards, further drying is carried out, and finished products and tail gas are discharged from the bottom of the tower.
The conventional vertical rising countercurrent spray granulation equipment has certain defects in specific operation: firstly, the air outlet position is arranged at the bottommost part of the tower body, the phenomenon that ceramic particles are insufficiently dried is caused by too fast material falling from the top, and if the falling speed of the material is reduced, the air speed of hot air needs to be increased, so that the energy consumption is increased; secondly, a special channel for falling particles is absent, the particles after granulation collide with each other in the tower body, so that the external structure is damaged, the quality of a finished product is improved, and an upward blowing type hot air outlet mode at the bottom of the tower body occupies the bottom space, so that the outlet position and the material recovery position are absent, and the downward discharging of the granulated substances is not facilitated; and meanwhile, as the spray granulation position is arranged at the top of the tower body, the position of the spray granulation position is close to the position of the suction port, and the non-granulated material dust is extracted along with updraught, and the non-dried material dust is directly extracted along with the top heat extraction operation, so that the recovery post-treatment and recovery are not facilitated.
In order to solve the problems, the invention aims to provide the vertical spray granulation device and the vertical spray granulation method which are simple in structure, convenient to operate, capable of reducing heat energy loss, uniform and sufficient in whole drying, capable of buffering and blanking, convenient for dust drying and recycling, capable of reducing excessive collision of formed ceramic particles, and capable of distinguishing an air supply area from a discharge area, simple in method and easy to operate, and wide in market prospect.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the vertical spray granulation device and the vertical spray granulation method which have the advantages of simple structure, convenient operation, reduced heat energy loss, uniform and sufficient integral drying, buffering blanking, convenient dust drying and recovery, reduced excessive collision of formed ceramic particles, distinguishing an air supply area from a discharge area, simple method and easy operation, and are used for overcoming the defects in the prior art.
The technical scheme of the invention is realized as follows: the utility model provides a vertical spray granulation device, includes vertical prilling tower, the atomizer of fixed mounting at vertical prilling tower top, vertical prilling tower's inner chamber top central point put and be provided with the dispersion granulator that is linked together with the atomizer, the outside circumferencial direction of dispersion granulator is the form intercommunication and has a plurality of shower nozzles, vertical prilling tower top inner wall cover is equipped with the shaping and accepts the sleeve pipe, be provided with the dispersion chamber that flows backwards between shaping accepting sleeve pipe and the dispersion granulator, it has vertical isolation sleeve pipe to accept sheathed tube bottom fixed mounting at the shaping, be provided with the negative pressure suction chamber between vertical isolation sleeve pipe and the vertical prilling tower outer wall, be provided with the top and take the sleeve pipe bottom and be connected the shaping in the vertical isolation sleeve pipe, be provided with the whirlwind chamber between the outside of ejection of compact sleeve pipe and the inside wall of vertical isolation sleeve pipe, ejection of compact sleeve pipe top is provided with the shaping chamber, ejection of compact sleeve pipe's bottom extends to vertical prilling tower's bottom outside, be provided with blanking buffering drying device in vertical isolation sleeve pipe's bottom and ejection of compact sheathed tube middle part.
The blanking buffering drying device comprises a drying cavity arranged at the bottom of a longitudinal isolation sleeve, a cyclone air outlet is arranged at the top of the drying cavity, a reclaimed material secondary drying sleeve is arranged below the drying cavity, a reclaimed material secondary drying cavity is arranged in the reclaimed material secondary drying sleeve, a secondary hot air sleeve is sleeved on the reclaimed material secondary drying cavity, the secondary hot air sleeve is communicated with a diversion hot air spray head arranged in the inner cavity of the discharging sleeve through a diversion hot air pipe, a conical buffering table is fixedly arranged on the inner wall of the discharging sleeve on the inner side of the diversion hot air spray head, a buffering blanking spiral rod is arranged in the inner cavity of the discharging sleeve above the conical buffering table, a side cyclone radiating hole is formed in the discharging sleeve above the drying cavity, a top cyclone radiating hole is formed in the forming sleeve between the longitudinal isolation sleeve and the discharging sleeve, a rotary suction hole is formed in the forming sleeve between the inner wall of the vertical type granulating tower and the outer wall of the longitudinal isolation sleeve, a recovery material secondary drying sleeve is arranged below the recycling plate, a drying support plate is arranged on the vertical type granulating and is communicated with the suction cavity of the negative pressure granulating and the recycling device, and the recovery device is arranged on the outer side of the vertical type granulating cavity.
The atomizer be linked together with the material case through the material pump, dispersion granulator be hollow funnel-shaped structure, shaping accept the sleeve pipe and be funnel-shaped structure, the shaping is accepted sheathed tube top and is connected with vertical prilling tower's roof fixed, vertical prilling tower's internal diameter and shaping are accepted sheathed tube top external diameter and are cooperateed, the dispersion chamber of flowing backwards is funnel-shaped cavity structure, the inner chamber of the dispersion chamber of flowing backwards is linked together with dispersion granulator's bottom.
The vertical isolation sleeve is arranged at the middle upper part of the outer wall of the forming receiving sleeve, the plane where the top of the vertical isolation sleeve is positioned above the plane where the bottom of the dispersing granulator is positioned, the top of the negative pressure suction cavity is communicated with the side surface of the upper part of the backflow dispersing cavity, the top of the cyclone cavity is communicated with the middle part of the longitudinal direction of the backflow dispersing cavity, and the top of the forming cavity is communicated with the center part of the backflow dispersing cavity.
The drying cavity is of an annular cavity structure, the inner wall of the drying cavity is sleeved on the middle outer wall of the discharging sleeve, the outer side wall of the drying cavity and the bottom of the longitudinal isolation sleeve are of an integrated structure, the cyclone cavity is communicated with the drying cavity through a cyclone air outlet, the cyclone air outlet is of a conical tubular structure with an included angle of 15-30 degrees with a horizontal plane, and a plurality of cyclone air outlets are distributed on the top surface of the drying cavity in an annular array shape.
The utility model discloses a recovery material secondary stoving sleeve be annular barrel structure, recovery material secondary stoving telescopic bottom is spherical structure, recovery material stoving is accepted the board and is arc annular structure, recovery material stoving is accepted the cambered surface of board and is cooperateed with recovery material secondary stoving telescopic outer wall cambered surface, the bottom in negative pressure suction chamber is linked together with recovery material and is accepted the top in chamber, recovery material is accepted the bottom in chamber and is provided with the gyration blanking storehouse through vertical gyration sleeve pipe, the bottom of gyration blanking storehouse is provided with the gyration through vertical gyration translation steering plate and goes out the feed bin, the gyration is gone out the feed bin and is linked together with cyclone through the pipeline, cyclone is linked together with the bag filter through the pipeline, the bag filter is linked together with the exhaust fan.
The secondary hot air sleeve is of an annular cavity structure, the secondary hot air sleeve is communicated with the split hot air pipes through transverse connecting pipes, the split hot air pipes are three, the three split hot air pipes are distributed on the outer wall of the discharging sleeve on the inner side of the secondary hot air sleeve from top to bottom, each secondary hot air sleeve is communicated with the split hot air spray head through a pipeline, at least two split hot air spray heads are arranged on each secondary hot air sleeve, the positions of the split hot air spray heads arranged on the three secondary hot air sleeves are staggered, and the arrangement height of the uppermost secondary hot air sleeve is not lower than that of the top surface of the conical buffer table.
The bottom fixed mounting of toper buffering platform have and strengthen the support, strengthen the diameter of support and the bottom diameter of toper buffering platform equal, strengthen the support and pass through connecting block fixed mounting at ejection of compact sleeve pipe inner wall, buffering blanking screw pole, the helical blade bottom of buffering blanking screw pole and the bottom surface parallel and level of stoving chamber, the helical blade top of buffering blanking screw pole is located the below of shaping chamber, has seted up the slope wind hole on the helical blade of buffering blanking screw pole, the axle center of this slope wind hole is tangent with the axial of whirlwind air outlet, is provided with blanking buffering chamber district between helical blade bottom and the enhancement support of buffering blanking screw pole.
The side cyclone heat dissipation holes and the top cyclone heat dissipation holes are equal in aperture, the aperture of the side cyclone heat dissipation holes is not smaller than the aperture of the rotary suction hole, the drying cavity is communicated with the heating cavity through the first air inlet pipe, the heating cavity is communicated with the pressurized air equipment, a filter and an air inlet fan are arranged in the pressurized air equipment, a heater is arranged in the heating cavity, and the secondary hot air sleeve is communicated with the preheating injection pressurizer through the second air inlet pipe.
The spray granulation method of the vertical spray granulation device comprises the following steps:
s1, feeding liquid enters a dispersion granulator through an atomizer, atomizing granulation operation is carried out towards the lower cavity of a backflow dispersing cavity through a spray head, the included angle between the tangent line of the outer side face of the bottom of the dispersion granulator and the horizontal plane is 45 degrees, the feeding liquid sprayed out by the spray head and the upwelling heat form countercurrent intersection at the bottom of the backflow dispersing cavity along with the continuous operation of the atomizer, atomized particles are formed by heating and solidifying in a forming cavity in the process of gradually settling the feeding liquid, and the feeding liquid which is not atomized into particles in time is sucked into a negative pressure suction cavity through a rotary suction hole formed on a forming receiving sleeve at the upper part of the backflow dispersing cavity along with the actions of lower blowing operation and negative pressure;
s2, a drying cavity is arranged at the middle lower part of the vertical granulating tower, hot air is introduced into the drying cavity from the outside, high-pressure hot air is blown out from a cyclone air outlet through the continuous external pressurizing blowing action, the hot air blown out from the cyclone air outlet rises in a continuous spiral airflow in the cyclone cavity between the inner wall of the longitudinal isolation sleeve and the outer wall of the discharge sleeve in a mode of forming an included angle of 15-30 degrees with the horizontal plane, the upper part of the hot air enters a backflow dispersing cavity through a top cyclone heat dissipation hole formed in the forming bearing sleeve, and atomization granulation is carried out on the continuously rising hot air in the backflow dispersing cavity and the feed liquid sprayed out by the spray nozzle in the step S1;
s3, continuously falling ceramic particles subjected to atomization and granulation in the dead weight of a forming cavity, enabling hot air continuously rising in a cyclone cavity to enter an inner cavity of a material sleeve through a side cyclone heat dissipation hole formed in a material sleeve in the falling process, continuously drying and reversely blowing the continuously falling formed ceramic particles, and enabling water and heat of the formed ceramic particles to enter a negative pressure suction cavity through a top cyclone heat dissipation hole under the combined action of negative pressure and reversely blowing;
s4, continuously falling formed ceramic particles are blanked to the top of a buffering blanking screw rod through a forming cavity, under the driving action of a transmission motor, carrying out material receiving operation on the falling ceramic particles, carrying out transshipment on the received materials sequentially towards a blanking buffering cavity area, in the transshipment process, enabling hot air to enter a gap of a longitudinal screw blade arrangement space of the buffering blanking screw rod through a side cyclone radiating hole formed in a discharging sleeve, enabling inclined air holes formed in the screw blade of the buffering blanking screw rod to be tangential in the axial direction, enabling the moisture and heat of the ceramic particles in the gap of the longitudinal space of the buffering blanking screw rod to enter a negative pressure suction cavity through the top cyclone radiating hole under the combined action of negative pressure and reverse blowing operation, enabling the ceramic particles to enter the blanking buffering cavity area from the lower part of a main body part of the buffering blanking screw rod, slowly blanking by means of dead weight, carrying out high-speed blowing operation on the ceramic particles through high-speed air sprayed out by a diversion nozzle, discharging the residual heat from the top of the discharging sleeve again, and finally enabling the ceramic particles to be output from the bottom of the discharging sleeve;
s5, under the continuous suction action of an external suction recovery device, the heat required to be recovered and the feed liquid which is not atomized into particles in time in the negative pressure suction cavity move downwards towards the recovery material receiving cavity, the outer wall of the recovery material secondary drying sleeve on the inner side of the upper part of the recovery material receiving cavity is provided with radiating fins, continuous drying operation is carried out on the downwards moved dust materials by utilizing the radiating fins, the drying cavity and the waste heat of the recovery material secondary drying cavity, and finally the dried dust materials are recovered by the suction recovery device on the outer side of the bottom of the vertical granulating tower.
The invention has the following positive effects:
firstly, the hot air outlet position is arranged at the middle lower part of the granulating tower, is different from the traditional bottom air outlet, reduces the ceramic particle blanking process through the buffer blanking arrangement structure, continuously discharges the water and heat of the formed particles through the negative pressure suction cavity extending from the top to the bottom through hot air and negative pressure suction, fully realizes reasonable layout on heat distribution, well solves the problem of heat and water discharge on the premise of not influencing the temperature requirement of granulating operation, avoids the problems of heat aggregation and water evaporation after granulating the particles, efficiently utilizes the heat energy through a uniquely designed heat circulation mode of upward blowing and lower suction, and simultaneously realizes the full drying of materials and the heat discharge after forming.
And meanwhile, cyclone blowing operation is formed at the position above the middle part of the tower body by using air outlet operation with different height differences, the limitation of cyclone cavities and blanking positions is distinguished, an independent channel special for buffering and blanking can be provided for formed ceramics on the premise of ensuring heat supply, disordered collision and friction among particles in the rising hot air treatment process of formed particles are avoided, and damage to the outside of the ceramic particle structure after preliminary forming is reduced.
And the heat discharge mode of the product is that the heat is discharged from the backflow dispersion cavity to the negative pressure suction cavity, and then the heat is discharged from the negative pressure suction cavity to the recovery material receiving cavity at the bottom, and finally the heat is pumped out through the suction recovery device, so that the heat is effectively sucked from the top in a circulating negative pressure suction mode, the top suction type recovery of feed liquid which is not atomized and formed is convenient, the full drying operation is carried out on the part of waste material, dust entering the position of a discharge hole is reduced, the full drying operation is carried out on the feed liquid which is not atomized and formed, and the later direct recovery and recycling are carried out.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of the internal structure of the present invention.
Fig. 3 is a schematic view of the internal usage state structure of the present invention.
Fig. 4 is a partially enlarged schematic construction of the present invention.
Fig. 5 is a schematic view showing the bottom structure of the dispersing granulator of the present invention.
Fig. 6 is a schematic top view of the shaped receiving sleeve of the present invention.
Fig. 7 is a schematic top view of the secondary hot air jacket of the present invention.
Fig. 8 is a schematic top view of a drying chamber according to the present invention.
Detailed Description
As shown in fig. 1, 2, 3, 4, 5, 6, 7 and 8, a vertical spray granulation device comprises a vertical granulation tower 3, an atomizer 11 fixedly installed at the top of the vertical granulation tower 3, a dispersion granulator 34 communicated with the atomizer 11 is arranged at the center position of the top of an inner cavity of the vertical granulation tower 3, a plurality of spray heads 35 are communicated in a displaying shape in the circumferential direction of the outer side of the dispersion granulator 34, a forming receiving sleeve 31 is sleeved on the inner wall of the top of the vertical granulation tower 3, a backflow dispersing cavity 46 is arranged between the forming receiving sleeve 31 and the dispersion granulator 34, a longitudinal isolation sleeve 32 is fixedly installed at the bottom of the forming receiving sleeve 31, a negative pressure suction cavity 43 is arranged between the longitudinal isolation sleeve 32 and the outer wall of the vertical granulation tower 3, a discharging sleeve 2 with the top connected with the bottom of the forming receiving sleeve 31 is arranged in the longitudinal isolation sleeve 32, a cyclone cavity 20 is arranged between the outer side of the discharging sleeve 2 and the inner wall of the longitudinal isolation sleeve 32, the bottom of the discharging sleeve 2 extends to the outer side of the bottom of the vertical granulation tower 3, and a buffer device is arranged at the bottom of the longitudinal isolation sleeve 32 and the discharging sleeve 2. The blanking buffering drying device comprises a drying cavity 18 arranged at the bottom of a longitudinal isolation sleeve 32, a cyclone air outlet 21 is arranged at the top of the drying cavity 18, a reclaimed material secondary drying sleeve 19 is arranged below the drying cavity 18, a reclaimed material secondary drying cavity 38 is arranged in the reclaimed material secondary drying sleeve 19, a secondary hot air sleeve 26 is sleeved on the discharging sleeve 2 in the reclaimed material secondary drying cavity 38, the secondary hot air sleeve 26 is communicated with a diversion hot air spray head 28 arranged in the inner cavity of the discharging sleeve 2 through a diversion hot air pipe 27, a conical buffer table 25 is fixedly arranged on the inner wall of the discharging sleeve 2 at the inner side of the diversion hot air spray head 28, a buffering blanking screw rod 30 is arranged in the inner cavity of the discharging sleeve 2 above the conical buffer table 25, a central shaft of the buffering blanking screw rod 30 is connected with a transmission motor 29 arranged below the conical buffer table 25, a side cyclone heat dissipation hole 40 is formed in the discharging sleeve 2 above the drying cavity 18, a top cyclone heat dissipation hole 41 is formed in the forming sleeve 31 between the longitudinal isolation sleeve 32 and the discharging sleeve 2, a rotary granulating cavity 31 is formed in the inner wall of a vertical type 3 and the outer wall of the longitudinal isolation sleeve 32 is communicated with a diversion hot air spray head 28, a suction plate 42 is arranged in the vacuum receiving cavity of the vacuum granulating cavity of the vacuum cavity, and a suction cavity 44 is arranged at the bottom of the vacuum granulating cavity is connected with the vacuum cavity of the vacuum cavity, and the vacuum cavity is recovered in the vacuum cavity is arranged in the vacuum cavity is connected with the vacuum cavity, and the vacuum cavity is recovered in the vacuum cavity is recovered by the vacuum cavity, and the vacuum cavity is a vacuum in the vacuum cavity is in the vacuum cavity, the vacuum cavity is in the vacuum in the vacuum cavity, the vacuum air in the vacuum air and the vacuum air.
The atomizer 11 be linked together with the material case 9 through the material pump 10, dispersion granulator 34 be hollow funnel structure, shaping accept sleeve pipe 31 be funnel structure, the shaping is accepted the top of sleeve pipe 31 and is accepted the roof fixed connection of vertical prilling tower 3, the internal diameter of vertical prilling tower 3 and the shaping are accepted the top external diameter of sleeve pipe 31 and are cooperateed, the dispersion chamber 46 of refluence is funnel-shaped cavity structure, the inner chamber of dispersion chamber 46 of refluence is linked together with dispersion granulator 34's bottom. The longitudinal isolation sleeve 32 is arranged at the middle upper part of the outer wall of the forming receiving sleeve 31, the plane where the top of the longitudinal isolation sleeve 32 is positioned above the plane where the bottom of the dispersing granulator 34 is positioned, the top of the negative pressure suction cavity 43 is communicated with the side surface of the upper part of the backflow dispersing cavity 46, the top of the cyclone cavity 20 is communicated with the middle part of the longitudinal direction of the backflow dispersing cavity 46, and the top of the forming cavity 22 is communicated with the center part of the backflow dispersing cavity 46.
The drying cavity 18 is of an annular cavity structure, the inner wall of the drying cavity 18 is sleeved on the middle outer wall of the discharging sleeve 2, the outer side wall of the drying cavity 18 and the bottom of the longitudinal isolation sleeve 32 are of an integrated structure, the cyclone cavity 20 is communicated with the drying cavity 18 through cyclone air outlets 21, the cyclone air outlets 21 are of conical tubular structures with included angles of 15-30 degrees with the horizontal plane, and a plurality of cyclone air outlets 21 are distributed on the top surface of the drying cavity 18 in an annular array shape. The reclaimed material secondary drying sleeve 19 is of an annular cylinder structure, the bottom of the reclaimed material secondary drying sleeve 19 is of a spherical structure, the reclaimed material drying bearing plate 35 is of an arc-shaped annular structure, the arc surface of the reclaimed material drying bearing plate 35 is matched with the arc surface of the outer wall of the reclaimed material secondary drying sleeve 19, the bottom of the negative pressure suction cavity 43 is communicated with the top of the reclaimed material bearing cavity 44, the bottom of the reclaimed material bearing cavity 44 is provided with a rotary blanking bin 45 through a longitudinal rotary sleeve 37, the bottom of the rotary blanking bin 45 is provided with a rotary discharging bin 47 through a longitudinal rotary translational steering plate 36, the rotary discharging bin 47 is communicated with the cyclone 12 through a pipeline, the cyclone 12 is communicated with the bag filter 13 through a pipeline, and the bag filter 13 is communicated with the exhaust fan 14.
The secondary hot air sleeve 26 is of an annular cavity structure, the secondary hot air sleeve 26 is communicated with the split hot air pipes 27 through transverse connecting pipes, the split hot air pipes 27 are three, the three split hot air pipes 27 are distributed on the outer wall of the discharging sleeve 2 on the inner side of the secondary hot air sleeve 26 from top to bottom, each secondary hot air sleeve 26 is communicated with the split hot air spray heads 28 through a pipeline, at least two split hot air spray heads 28 are arranged on each secondary hot air sleeve 26, the positions of the split hot air spray heads 28 arranged on the three secondary hot air sleeves 26 are staggered, and the setting height of the uppermost secondary hot air sleeve 26 is not lower than that of the top surface of the conical buffer table 25. The bottom fixed mounting of toper buffer platform 25 have and strengthen support 24, strengthen the diameter of support 24 and the bottom diameter of toper buffer platform 25 equal, strengthen support 24 and pass through connecting block 23 fixed mounting at ejection of compact sleeve pipe 2 inner wall, buffering blanking screw 30, the helical blade bottom of buffering blanking screw 30 and the bottom surface parallel and level of stoving chamber 18, the helical blade top of buffering blanking screw 30 is located the below of shaping chamber 22, has seted up the slope wind hole on the helical blade of buffering blanking screw 30, the axle center of this slope wind hole is tangent with the axial of whirlwind air outlet 21, is provided with blanking buffer chamber district 39 between the helical blade bottom of buffering blanking screw 30 and the support 24. The aperture of the side cyclone heat dissipation holes 40 is equal to that of the top cyclone heat dissipation holes 41, the aperture of the side cyclone heat dissipation holes 40 is not smaller than that of the rotary suction holes 42, the drying cavity 18 is communicated with the heating cavity 5 through the first air inlet pipe 6, the heating cavity 5 is communicated with the pressurized air device 4, the filter 15 and the air inlet fan 16 are arranged in the pressurized air device 4, the heater 17 is arranged in the heating cavity 5, and the secondary hot air sleeve 26 is communicated with the preheating jet pressurizer 8 through the second air inlet pipe 7.
A spray granulation method of the vertical spray granulation device according to any one of the above, comprising the steps of:
s1, feeding liquid enters a dispersion granulator 34 through an atomizer 11, atomizing granulation is carried out in a cavity at the lower part of a backflow dispersing cavity 46 through a spray head 35, the included angle between the tangent line of the outer side surface of the bottom of the dispersion granulator 34 and the horizontal plane is 45 degrees, along with the continuous operation of the atomizer 11, the feeding liquid sprayed out by the spray head 35 forms countercurrent intersection with the upwelling heat at the bottom of the backflow dispersing cavity 46, and is heated and solidified in a forming cavity 22 to form atomized particles in the process of gradually settling the feeding liquid, and the feeding liquid which is not atomized into particles in time is sucked into a negative pressure suction cavity 43 through a rotary suction hole 42 formed on a forming receiving sleeve 31 at the upper part of the backflow dispersing cavity 46 under the action of lower blowing operation and negative pressure;
s2, a drying cavity 18 is arranged at the middle lower part of the vertical granulating tower 3, hot air is introduced into the drying cavity 18 from the outside, high-pressure hot air is blown out from a cyclone air outlet 21 under the continuous external pressurizing and blowing action, the hot air blown out from the cyclone air outlet 21 rises in a continuous spiral airflow in a cyclone cavity 20 between the inner wall of a longitudinal isolation sleeve 32 and the outer wall of a discharge sleeve 2 in a mode of forming an included angle of 15-30 degrees with a horizontal plane, the upper part of the hot air enters a backflow dispersing cavity 46 through a top cyclone heat dissipation hole 41 formed on a forming receiving sleeve 31, and atomization granulation is carried out on the continuously rising hot air in the backflow dispersing cavity 46 and the feed liquid sprayed out by a spray nozzle 35 in the step S1;
s3, continuously falling ceramic particles subjected to atomization and granulation in a forming cavity 22, continuously spirally rising hot air in a cyclone cavity 20 enters an inner cavity of a material sleeve 2 through a side cyclone heat dissipation hole 40 formed in the material sleeve 2 in the falling process, continuously drying and reversely blowing the continuously falling formed ceramic particles, and under the combined action of negative pressure and reversely blowing, entering a negative pressure suction cavity 43 through a top cyclone heat dissipation hole 41 by water and heat of the formed ceramic particles;
s4, continuously falling formed ceramic particles are blanked to the top of a buffering blanking screw rod 30 through a forming cavity 22, under the drive of a transmission motor 29, the falling ceramic particles are subjected to material receiving operation, the received materials are sequentially transferred towards a blanking buffering cavity area 39, in the transferring process, hot air enters into a gap of a longitudinal screw blade arrangement space of the buffering blanking screw rod 30 through a side cyclone heat dissipation hole 40 formed in a discharging sleeve pipe 2, inclined air holes formed in the screw blade of the buffering blanking screw rod 30 are tangential axially, under the combined action of negative pressure and reverse air blowing operation, the moisture and heat of the ceramic particles in the gap of the longitudinal space of the buffering blanking screw rod 30 enter into a negative pressure suction cavity 43 through a top cyclone heat dissipation hole 41, the ceramic particles enter into the blanking buffering cavity area 39 from the lower part of a main body part of the buffering blanking screw rod 30 and are slowly blanked by self weight, the residual heat is discharged from the top of the discharging sleeve pipe 2 again through high-speed air sprayed out of a split hot air nozzle 28, and finally the ceramic particles are output from the bottom of the discharging sleeve pipe 2;
s5, under the continuous suction action of an external suction recovery device, the heat required to be recovered and the feed liquid which is not atomized into particles in time in the negative pressure suction cavity 43 move downwards towards the recovery material receiving cavity 44, the outer wall of the recovery material secondary drying sleeve 19 at the upper inner side of the recovery material receiving cavity 44 is provided with radiating fins, continuous drying operation is carried out on the downwards moved dust materials by utilizing the radiating fins, the drying cavity 18 and the waste heat of the recovery material secondary drying cavity 38, and finally the dried dust materials are recovered by the suction recovery device at the outer side of the bottom of the vertical prilling tower 3.
In a specific embodiment, when the invention is operated, material liquid is configured in the material box 9 according to material requirements and humidity requirements, after the material pump 10 is started, the material liquid enters the dispersing granulator 34 through the atomizer 11, under the continuous feeding effect of the material pump 10, the material liquid is sprayed out towards the lower cavity of the backflow dispersing cavity 46 through the spray nozzle 35, the drying cavity 18 is arranged at the middle lower part of the vertical granulating tower 3, hot air is introduced into the drying cavity 18 from the outside, high-pressure hot air is blown out from the cyclone air outlet 21 through the continuous external pressurization blowing effect, the hot air blown out from the cyclone air outlet 21 is continuously spirally increased in the cyclone cavity 20 between the inner wall of the longitudinal isolation sleeve 32 and the outer wall of the discharge sleeve 2 in a mode of forming an included angle of 15-30 degrees with the horizontal plane, the upper part of the hot air enters the backflow dispersing cavity 46 through the top cyclone heat dissipation hole 41 formed on the forming receiving sleeve 31, and the continuously increased hot air and the material liquid sprayed out from the spray nozzle 35 in the step S1 are atomized and granulated.
In the process of continuously rising the hot air, the included angle between the tangent line of the outer side surface of the bottom of the dispersion granulator 34 and the horizontal plane is 45 degrees, along with the continuous operation of the atomizer 11, the feed liquid sprayed out by the spray head 35 forms countercurrent intersection with the upwelling heat at the bottom of the backflow dispersion cavity 46, and is heated and solidified in the forming cavity 22 to form atomized particles in the process of gradually settling the feed liquid, and the feed liquid which is not atomized into particles in time is sucked into the negative pressure suction cavity 43 through the rotary suction holes 42 formed on the forming receiving sleeve 31 at the upper part of the backflow dispersion cavity 46 under the action of lower blowing operation and negative pressure.
The pressurizing air device 4 is arranged outside the vertical granulating tower 3, the pressurizing air device 4 is communicated with the heating cavity 5, the heating cavity 5 is communicated with the first air inlet pipe 6, outside air is filtered by the filter 15 and then is brought into the heating cavity 5 by the air inlet machine 16, heating operation is carried out by utilizing the heater 17 arranged in the heating cavity 5, and heat after heating is continuously pressed into the drying cavity 18 by the air inlet machine 16 to provide heat for the inner cavity of the vertical granulating tower 3. The preheating injection pressurizer 8 performs intermittent pressurized injection operation, pressurizes and pushes the waste heat of the heating cavity 5 into the second air inlet pipe 7, provides partial waste heat utilization for the secondary hot air sleeve 26, ejects the partial waste heat through the split hot air nozzle 28 by the secondary hot air sleeve 26, provides pressurized air supply operation for the blanking buffer cavity area 39, and fully utilizes the waste heat.
The ceramic particles subjected to atomization and granulation continuously fall in the forming cavity 22 by the self weight, in the falling process, hot air continuously rising in a cyclone cavity 20 enters the inner cavity of the material sleeve 2 through the side cyclone heat dissipation holes 40 formed in the material sleeve 2, continuous drying and reverse blowing operation are carried out on the continuously falling formed ceramic particles, and under the combined action of negative pressure and reverse blowing operation, the water and heat of the formed ceramic particles enter the negative pressure suction cavity 43 through the top cyclone heat dissipation holes 41. Continuously falling formed ceramic particles are blanked to the top of the buffering blanking screw rod 30 through the forming cavity 22, under the driving action of the transmission motor 29, the falling ceramic particles are subjected to material receiving operation, the received materials are sequentially transferred towards the blanking buffering cavity area 39, in the transferring process, hot air enters into a gap of a space where longitudinal screw blades of the buffering blanking screw rod 30 are arranged through side cyclone heat dissipation holes 40 formed in the discharging sleeve 2, inclined air holes formed in the screw blades of the buffering blanking screw rod 30 are axially tangential, under the combined action of negative pressure and reverse air blowing operation, the moisture and heat of the ceramic particles in the gap of the longitudinal space of the buffering blanking screw rod 30 enter into the negative pressure suction cavity 43 through the top cyclone heat dissipation holes 41, the ceramic particles enter into the blanking buffering cavity area 39 from the lower part of the main body part of the buffering blanking screw rod 30, the ceramic particles are slowly blanked by self weight, high-speed air blowing operation is carried out on the ceramic particles through high-speed air sprayed out by the split hot air nozzle 28, the residual heat is discharged from the top of the discharging sleeve 2 again, and finally the ceramic particles are output from the bottom of the discharging sleeve 2.
Under the continuous suction action of an external suction recovery device, the heat required to be recovered and the feed liquid which is not atomized into particles in time in the negative pressure suction cavity 43 move downwards towards the recovery material receiving cavity 44, the outer wall of the recovery material secondary drying sleeve 19 at the upper inner side of the recovery material receiving cavity 44 is provided with radiating fins, continuous drying operation is carried out on the downwards moved dust materials by utilizing the radiating fins, the drying cavity 18 and the waste heat of the recovery material secondary drying cavity 38, the dried materials to be recovered enter the rotary discharging bin 45 after the recovery material receiving cavity 44 is dried, enter the rotary discharging bin 47 under the effect of vertical blanking of the rotary discharging bin 45, dust is recovered through the rotary discharging bin and communicated with the cyclone separator 12 through a pipeline, the cyclone separator 12 is communicated with the bag filter 13, the bag filter 13 is communicated with the exhaust fan 14, and the fully dried dust is carried out from the rotary discharging bin 47 and the recovery operation is carried out in the process that the exhaust fan 14 forms negative pressure.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a vertical spray granulation device, includes vertical prilling tower (3), and fixed mounting is at atomizer (11) at vertical prilling tower (3) top, its characterized in that: the utility model provides a vertical granulation tower (3) inner chamber top central point put and be provided with dispersion granulator (34) that are linked together with atomizer (11), the outside circumferencial direction of dispersion granulator (34) is the form intercommunication and has a plurality of shower nozzles (35), vertical granulation tower (3) top inner wall cover is equipped with shaping and accepts sleeve pipe (31), be provided with between shaping and accept sleeve pipe (31) and dispersion granulator (34) refluence dispersion chamber (46), bottom fixed mounting at shaping accept sleeve pipe (31) has vertical isolation sleeve pipe (32), be provided with negative pressure suction chamber (43) between vertical isolation sleeve pipe (32) and vertical granulation tower (3) outer wall, be provided with in vertical isolation sleeve pipe (32) top and the shaping accept sleeve pipe (31) bottom and be connected ejection of tubes sleeve pipe (2), be provided with whirlwind chamber (20) between the outside of ejection of tubes (2) and the inner wall of vertical isolation sleeve pipe (32), ejection of tubes (2) bottom extends to the bottom outside of vertical granulation tower (3), bottom at vertical isolation sleeve pipe (32) bottom and ejection of tubes (2) are provided with drying buffer.
2. The vertical spray granulation device according to claim 1, wherein: the blanking buffering drying device comprises a drying cavity (18) arranged at the bottom of a longitudinal isolation sleeve (32), a cyclone air outlet (21) is arranged at the top of the drying cavity (18), a reclaimed material secondary drying sleeve (19) is arranged below the drying cavity (18), a reclaimed material secondary drying cavity (38) is arranged in the reclaimed material secondary drying sleeve (19), a secondary hot air sleeve (26) is sleeved on a discharging sleeve (2) arranged in the reclaimed material secondary drying cavity (38), the secondary hot air sleeve (26) is communicated with a diversion hot air spray head (28) arranged in the inner cavity of the discharging sleeve (2) through a diversion hot air pipe (27), a conical buffering table (25) is fixedly arranged on the inner wall of the discharging sleeve (2) at the inner side of the diversion hot air spray head (28), a buffering blanking spiral rod (30) is arranged in the inner cavity of the discharging sleeve (2) above the conical buffering table (25), a central shaft of the buffering blanking spiral rod (30) is connected with a transmission motor (29) arranged below the conical buffering table (25), a cyclone heat dissipation sleeve (41) is arranged on the discharging sleeve (2) above the drying cavity (18), a cyclone heat dissipation hole (41) is formed between the longitudinal heat dissipation sleeve (32) and the top of the cyclone heat dissipation sleeve (41), the molding between vertical prilling tower (3) inner wall and vertical spacer sleeve (32) outer wall is accepted and is offered on sleeve (31) and has revolved suction hole (42), is provided with recovery material stoving and accepts board (35) in the below of recovery material secondary stoving sleeve (19), and recovery material stoving is accepted board (35) top and is provided with recovery material and accept chamber (44) that are linked together with negative pressure suction chamber (43), and recovery material is accepted chamber (44) and is linked together with the suction recovery unit who sets up in vertical prilling tower (3) bottom outside.
3. The vertical spray granulation device according to claim 1, wherein: the atomizer (11) be linked together with material case (9) through material pump (10), dispersion granulator (34) be hollow funnel-shaped structure, shaping accept sleeve pipe (31) for funnel-shaped structure, the shaping is accepted the roof fixed connection of sleeve pipe (31) and vertical prilling tower (3), the internal diameter of vertical prilling tower (3) is cooperateed with the shaping top external diameter of accepting sleeve pipe (31), refluence dispersion chamber (46) are funnel-shaped cavity structure, the inner chamber of refluence dispersion chamber (46) is linked together with the bottom of dispersion granulator (34).
4. The vertical spray granulation device according to claim 1, wherein: the vertical isolation sleeve (32) is arranged at the middle upper part of the outer wall of the forming receiving sleeve (31), the plane where the top of the vertical isolation sleeve (32) is positioned above the plane where the bottom of the dispersing granulator (34) is positioned, the top of the negative pressure suction cavity (43) is communicated with the side surface of the upper part of the backflow dispersing cavity (46), the top of the cyclone cavity (20) is communicated with the middle part of the vertical direction of the backflow dispersing cavity (46), and the top of the forming cavity (22) is communicated with the central part of the backflow dispersing cavity (46).
5. The vertical spray granulation device according to claim 2, wherein: the drying cavity (18) is of an annular cavity structure, the inner wall of the drying cavity (18) is sleeved on the middle outer wall of the discharging sleeve (2), the outer side wall of the drying cavity (18) and the bottom of the longitudinal isolation sleeve (32) are of an integrated structure, the cyclone cavity (20) is communicated with the drying cavity (18) through the cyclone air outlet (21), the cyclone air outlet (21) is of a conical tubular structure with an included angle of 15-30 degrees with a horizontal plane, and a plurality of cyclone air outlets (21) are distributed on the top surface of the drying cavity (18) in an annular array shape.
6. The vertical spray granulation device according to claim 2, wherein: the utility model provides a reclaimed material secondary stoving sleeve (19) be cyclic annular tubular structure, the bottom of reclaimed material secondary stoving sleeve (19) is spherical structure, reclaimed material stoving is accepted joint board (35) and is arc cyclic annular structure, the cambered surface that reclaimed material stoving accepted joint board (35) cooperatees with the outer wall cambered surface of reclaimed material secondary stoving sleeve (19), the bottom of negative pressure suction chamber (43) is linked together with the top of reclaimed material accepting chamber (44), the bottom of reclaimed material accepting chamber (44) is provided with gyration blanking storehouse (45) through vertical gyration sleeve (37), the bottom of gyration blanking storehouse (45) is provided with gyration play feed bin (47) through vertical gyration translation steering plate (36), gyration play feed bin (47) are linked together with cyclone (12) through the pipeline, cyclone (12) are linked together with bag filter (13) through the pipeline, bag filter (13) are linked together with exhaust fan (14).
7. The vertical spray granulation device according to claim 2, wherein: the secondary hot air sleeve (26) is of an annular cavity structure, the secondary hot air sleeve (26) is communicated with the split hot air pipes (27) through transverse connecting pipes, the split hot air pipes (27) are three, the three split hot air pipes (27) are distributed on the outer wall of the discharging sleeve (2) on the inner side of the secondary hot air sleeve (26) from top to bottom, each secondary hot air sleeve (26) is communicated with the split hot air spray heads (28) through a pipeline, at least two split hot air spray heads (28) are arranged on each secondary hot air sleeve (26), the positions of the split hot air spray heads (28) arranged on the three secondary hot air sleeves (26) are staggered, and the arrangement height of the uppermost secondary hot air sleeve (26) is not lower than that of the top surface of the conical buffer table (25).
8. The vertical spray granulation device according to claim 2, wherein: the bottom fixed mounting of toper buffer platform (25) have and strengthen support (24), strengthen the diameter of support (24) and the bottom diameter of toper buffer platform (25) equal, strengthen support (24) through connecting block (23) fixed mounting at ejection of compact sleeve pipe (2) inner wall, buffering blanking screw (30), the screw blade bottom of buffering blanking screw (30) and the bottom surface parallel and level of stoving chamber (18), the screw blade top of buffering blanking screw (30) is located the below of shaping chamber (22), set up the slope wind hole on the screw blade of buffering blanking screw (30), the axle center of this slope wind hole is tangent with the axial of whirlwind air outlet (21), be provided with blanking buffering chamber area (39) between the screw blade bottom of buffering blanking screw (30) and strengthening support (24).
9. The vertical spray granulation device according to claim 2, wherein: the side cyclone heat dissipation hole (40) and the top cyclone heat dissipation hole (41) are equal in aperture, the aperture of the side cyclone heat dissipation hole (40) is not smaller than the aperture of the rotary suction hole (42), the drying cavity (18) is communicated with the heating cavity (5) through the first air inlet pipe (6), the heating cavity (5) is communicated with the pressurized air device (4), the filter (15) and the air inlet machine (16) are arranged in the pressurized air device (4), the heater (17) is arranged in the heating cavity (5), and the secondary hot air sleeve (26) is communicated with the preheating jet pressurizer (8) through the second air inlet pipe (7).
10. A spray granulation method of a vertical spray granulation apparatus according to any one of claims 1 to 9, characterized in that it comprises:
s1, feeding liquid enters a dispersion granulator (34) through an atomizer (11), atomization granulation operation is carried out in a cavity at the lower part of a backflow dispersing cavity (46) through a spray head (35), the included angle between the tangent line of the outer side surface of the bottom of the dispersion granulator (34) and the horizontal plane is 45 degrees, along with the continuous operation of the atomizer (11), the feeding liquid sprayed out by the spray head (35) forms countercurrent intersection with the upwelling heat at the bottom of the backflow dispersing cavity (46), atomized particles are formed by heating and solidification in a forming cavity (22) in the process of gradually settling the feeding liquid, and the feeding liquid which is not atomized into particles in time is sucked into a negative pressure suction cavity (43) through a convolution suction hole (42) formed on a forming receiving sleeve (31) at the upper part of the backflow dispersing cavity (46) along with the actions of lower blowing operation and negative pressure;
s2, a drying cavity (18) is arranged at the middle lower part of the vertical granulating tower (3), hot air is introduced into the drying cavity (18) from the outside, high-pressure hot air is blown out from a cyclone air outlet (21) under the continuous external pressurizing blowing action, the hot air blown out from the cyclone air outlet (21) rises in a continuous spiral airflow in a cyclone cavity (20) between the inner wall of a longitudinal isolation sleeve (32) and the outer wall of a discharging sleeve (2) in a mode of forming an included angle of 15-30 degrees with a horizontal plane, the upper part of the hot air enters a backflow dispersing cavity (46) through a top cyclone heat dissipation hole (41) formed in a forming receiving sleeve (31), and the continuously rising hot air in the backflow dispersing cavity (46) and feed liquid sprayed out by a spray nozzle (35) in the step S1 are atomized and granulated;
s3, continuously falling ceramic particles subjected to atomization and granulation under the dead weight of a forming cavity (22), continuously spirally rising hot air in a cyclone cavity (20) enters an inner cavity of a material sleeve (2) through a side cyclone heat dissipation hole (40) formed in a material sleeve (2) in the falling process, continuously drying and reversely blowing the continuously falling forming ceramic particles, and under the combined action of negative pressure and reversely blowing, entering a negative pressure suction cavity (43) through a top cyclone heat dissipation hole (41) by the water and heat of the formed ceramic particles;
s4, continuously falling formed ceramic particles are blanked to the top of a buffering blanking screw rod (30) through a forming cavity (22), under the driving action of a transmission motor (29), the falling ceramic particles are subjected to material receiving operation, the received materials are sequentially transferred towards a blanking buffering cavity area (39), in the transferring process, hot air enters into a gap of a longitudinal screw blade arrangement space of the buffering blanking screw rod (30) through a side cyclone heat dissipation hole (40) arranged on a discharging sleeve (2), the inclined air holes arranged on the screw blade of the buffering blanking screw rod (30) are axially tangential, under the combined action of negative pressure and reverse blowing operation, the ceramic particle moisture and heat of the gap of the longitudinal space of the buffering blanking screw rod (30) enter into a negative pressure suction cavity (43) through a top cyclone heat dissipation hole (41), the ceramic particles enter into the blanking buffering cavity area (39) from the lower part of a main body part of the buffering screw rod (30), the ceramic particles are subjected to high-speed blowing operation again through high-speed air sprayed by a split hot air spray nozzle (28), and the residual ceramic particles are discharged from the top of the discharging sleeve (2) from the bottom of the discharging sleeve (2) under the dead weight of the discharging sleeve;
s5, under the continuous suction action of an external suction recovery device, the heat required to be recovered and the feed liquid which is not atomized into particles in time in the negative pressure suction cavity (43) move downwards towards the recovery material receiving cavity (44), radiating fins are arranged on the outer wall of the recovery material secondary drying sleeve (19) on the inner side of the upper part of the recovery material receiving cavity (44), continuous drying operation is carried out on the downwards moved dust materials by utilizing the radiating fins, the drying cavity (18) and the waste heat of the recovery material secondary drying cavity (38), and finally the dried dust materials are recovered by the suction recovery device on the outer side of the bottom of the vertical granulating tower (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310755633.2A CN116726800A (en) | 2023-06-25 | 2023-06-25 | Vertical spray granulation device and method |
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| CN202310755633.2A CN116726800A (en) | 2023-06-25 | 2023-06-25 | Vertical spray granulation device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119565485A (en) * | 2025-02-07 | 2025-03-07 | 山西锐能新材料有限公司 | Environment-friendly spray granulation equipment for ceramic material processing and use method |
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- 2023-06-25 CN CN202310755633.2A patent/CN116726800A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119565485A (en) * | 2025-02-07 | 2025-03-07 | 山西锐能新材料有限公司 | Environment-friendly spray granulation equipment for ceramic material processing and use method |
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