CN102366745B - Powder selecting and collecting device - Google Patents
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- CN102366745B CN102366745B CN201110280683.7A CN201110280683A CN102366745B CN 102366745 B CN102366745 B CN 102366745B CN 201110280683 A CN201110280683 A CN 201110280683A CN 102366745 B CN102366745 B CN 102366745B
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- 238000000926 separation method Methods 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
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- 230000000630 rising effect Effects 0.000 description 7
- 238000005119 centrifugation Methods 0.000 description 6
- 235000012054 meals Nutrition 0.000 description 6
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- 241000237858 Gastropoda Species 0.000 description 1
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- 235000013305 food Nutrition 0.000 description 1
- 230000008676 import Effects 0.000 description 1
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Abstract
The invention discloses a powder selecting and collecting device, which comprises a powder selecting pipe and a powder collecting pipe, wherein the upper part of the powder selecting pipe is provided with a feeding hole; the lower end of the powder selecting pipe is provided with a discharging hole; the powder selecting pipe and the powder collecting pipe are communicated with each other; the powder selecting pipe is arranged obliquely to the horizontal surface; the included angle alpha between the powder selecting pipe and the horizontal surface is more than or equal to 45 degrees and less than or equal to 90 degrees; the powder collecting pipe is arranged horizontally; the lower end of the powder selecting pipe is provided with an air inlet; the powder collecting pipe is provided with an air outlet far away from one end which is communicated with the powder selecting pipe; and the air outlet is connected with a draught fan. In the device, high air speed required by a powder selecting process of a centrifugal separating technology is not required, the aims of selecting powder and subsequently collecting powder can be fulfilled by setting the air speed at 2 meters per second in the powder selecting pipe, and the energy consumption is lowered; mostly importantly, powder selection and powder collection are performed in the powder selecting pipe and the powder collecting pipe which are communicated with each other but are not interfered with each other, so that the influence of airstream flow during centrifugal separation on powder collection is avoided, and the powder selecting and powder collecting efficiencies are increased; and the overall pressure loss of the device does not surpass 100 Pa which is only 5-10 percent of the pressure loss of the conventional centrifugal separation powder selecting system, and the energy-saving effect is remarkable.
Description
Technical field
The present invention relates to a kind of gas-solid separating device, relate in particular to a kind of device selecting powder and receive powder.
Background technology
Industry selects powder to be conventional process in modern industry production process, be widely used in the industries such as metallurgy, chemical industry, cement, food, only cement industry, with regard to raw meal preparation, grog, raw coal, annual powder amount of selecting just can reach nearly 5,000,000,000 tons, powder amount is selected for so huge, makes the electric energy of in cement production process more than 60% all consume in powder process and select powder link.
At present, what extensively use in powder manufacturings such as manufacture of cement is exactly powder concentrator.So far, the following three generations of development experience of powder concentrator:
First generation powder concentrator, i.e. centrifugal classifier, that Britain Mang Fute (Mumford) and Moody's (Moody) are invented, cardinal principle is: the buoyancy that the material particles based on different-grain diameter produces in ascending air is different, and utilize the balance between the air resistance of material particles in relative movement, centrifugal force, gravity simultaneously, the particle making particle size different produces variable-speed motion, thus makes gradation.When carrying out selecting powder, generally need by centrifugal classifier and circulating air blower fan and from air the cyclone cylinder of sorting fine powder be combined into an one-of-a-kind system and jointly use.
Second generation powder concentrator, i.e. cyclone type powder sorting machine are that early sixties is developed by Germany Weida lattice (Wedag) company; The improvement development of second generation powder concentrator is because the circulation of gas is carried out in internal system in first generation centrifugal classifier, in the process of circulation, be easy to cause due to inner air circulation the material after centrifugation to be recycled further destroyed, thus had a strong impact on separative efficiency.Second generation powder concentrator outer setting independently circulating fan replace the big blade of centrifugal classifier, 6-8 whirly cylinder is provided with around body, to replace the urceolus of centrifugal classifier, improve the separative efficiency of fine powder, change the gas inner loop mode of centrifugal classifier into outer circulation mode simultaneously.
Third generation powder concentrator, i.e. high-efficient powder concentrator, with the O-Sepa powder concentrator of Japanese little Ye field company in 1979 exploitation for representative, it not only remains the outside air feed of cyclone type powder sorting machine, circulating current is efficiently separated, secondary selects the advantages such as powder; Apply snail air-flow simultaneously and select powder principle, little fan blade is replaced with cage rotor, air-flow is entered by guide vane tangent line, in whole powder-separating area, steady air current is even, the chance repeatedly repeating sorting is provided to top-down material, qualified fine powder is extracted out from top by central tube with air-flow, enters follow-up dust-precipitator and fines collection is got off; Meal returns grinding machine grinding again from cone bottom, forms circle streaming system.
No matter how the structure of above-mentioned three generations's powder concentrator is arranged, it all designs based on centrifugal principle, such as Chinese patent literature CN2754748Y discloses a kind of high-efficient powder concentrator, it has housing, be provided with in housing and dynamically select powder structure, the power set driving dynamic powder concentrator structure are installed above housing, housing tip has product outlet, the below tipping of housing has rising airduct and meal ash bucket and meal tremie pipe, the lower sides of rising airduct is provided with mill tail air port and air distribution outlet, feed hopper is arranged on the sidewall of rising airduct epimere, and set up meal feedback outlet in the lower end of rising airduct.This powder concentrator is owing to adopting rising airduct upper feeding, and material carries out a gravity preparation powder in rising airduct, and larger particle falls under gravity, sends grinding machine back to reface by meal feedback outlet and conveying equipment; Enter the dynamic powder-separating area of powder concentrator through wind blade between fine powder enters powder concentrator and dynamic powder concentrator structure uniformly wind blade after then mixing fully with ascending air in rising airduct to carry out selecting powder, the effect of wind blade ensures that material is uniformly distributed along rotor is whole, meanwhile, the mixture of air-flow and grinding material is made to rotate.
In the art, its dynamic powder-separating area utilizes centrifugal principle to carry out selecting powder, first, centrifugal principle is used to carry out selecting powder, because air-flow carries the ability of powder, be generally all no more than 500 grams/cubic metre, certainly will increase with air quantity like this, need device to configure very high wind speed simultaneously, cause system energy consumption very large; Secondly, in the environment of high wind speed like this, the wearing and tearing of equipment under high wind speed state are exacerbated further; Then, in the said equipment of prior art, in order to avoid the airflow influence between distinct device, connecting line between general device is all long, in order to avoid the deposition of powder in pipeline, must maintain the wind speed of at least 20 meter per seconds in pipeline, compared with low wind speed, so high wind speed increases the linear loss of pipeline, reduces the efficiency of selection by winnowing, also makes energy consumption increase simultaneously.The most key, centrifugation and select powder to carry out at same environment, and this environment is the environment of high wind speed, easily like this causes air-flow during centrifugation to cause direct impact to selecting sedimentation needed for powder, and grinding efficiency is affected.
Summary of the invention
Technical problem to be solved by this invention is that the powder equipment that selects of the prior art utilizes centrifugal principle to select powder to need to configure high wind speed, cause system energy consumption increase, simultaneously wear equipment, increase the problem of pipeline linear loss, and select the centrifugation of powder equipment in prior art and select powder to carry out at same high wind speed environment, airflow influence during centrifugation is easily caused to select powder sedimentation, make the affected problem of grinding efficiency, and then provide that a kind of selection by winnowing precision is high, selection by winnowing efficiency is high, energy consumption is little, to little the selecting powder and receive powder device of equipment attrition.
For solving the problems of the technologies described above, the invention provides one and select powder and receive powder device, comprise and select tube cell and receive tube cell, arrange charging aperture on the described top of tube cell of selecting, lower end arranges discharging opening, and the described tube cell that selects is communicated with setting with described receipts tube cell;
The described tube cell that selects favours horizontal plane setting, and the angle α between itself and horizontal plane is more than or equal to 45 ° and is less than or equal to 90 °; Described receipts tube cell is horizontally disposed with;
The described lower end of tube cell of selecting is provided with air inlet, and described receipts tube cell is being provided with air outlet away from described one end selecting tube cell to be connected, and connects arrange air-introduced machine at described air outlet place.
The described tube cell that selects is arranged perpendicular to horizontal plane.
Described receipts tube cell is connected with the described top of tube cell of selecting, and closes the described top of tube cell of selecting.
Described air-introduced machine is connected with described air outlet by sack cleaner.
Extended airflow circulating pipeline between described air outlet and described sack cleaner, described airflow circulating pipeline is connected with described air inlet by circulating fan.
Described airflow circulating pipeline is connected with described air outlet.
The described longitudinal section of tube cell and described receipts tube cell of selecting is rectangular.
The sectional area of described receipts tube cell is several times as much as the described sectional area selecting tube cell; And describedly select the air velocity in tube cell to be several times as much as air velocity in described receipts tube cell.
The sectional area of described receipts tube cell is greater than described 2-5 times of selecting tube cell sectional area.
The sectional area of described receipts tube cell is greater than described 5 times of selecting tube cell sectional area.
The length of described receipts tube cell is more than or equal to described tube cell bottom of selecting to 5 times of the height of described connectivity part.
Describedly select the movement velocity of air-flow in tube cell to be more than or equal to 2 meter per seconds, in described receipts tube cell, the horizontal movement speed of air-flow is less than or equal to 1 meter per second.
Be staggeredly equipped with one or more guide angle described choosing on the inwall of tube cell, described guide angle tilts towards a side of described air inlet towards the direction away from described air inlet.
Between adjacent described guide angle, adjacent both sides parallel, and described guide angle is triangular in shape.
Be formed with transiting slide plate section in the described connectivity part of tube cell and described receipts tube cell of selecting, described transiting slide plate section top is inclined-plane, and described inclined-plane rises near described receipts tube cell one end gradually near described tube cell one end of selecting; Have between the top of described transiting slide plate section and the upper inwall of described receipts tube cell and be suitable for described air-flow and carry the flowing spacing that powder passes through; In at least one or more guide angle described, have at least a guide angle to be arranged on described choosing on sidewall that tube cell is relative with inclined-plane, described transiting slide plate section top, and described guide angle equal described flowing spacing towards the vertical range between a side and described inclined-plane on described inclined-plane.
Select the connectivity part of tube cell and described receipts tube cell and the upper inwall being positioned at described receipts tube cell is provided with baffle plate described, described baffle plate is parallel with described inclined-plane.
Along the flow direction of described air-flow, bottom described receipts tube cell, arrange one or more aggregate bin, described aggregate bin is connected with described receipts tube cell; The second ash-valve for closed powder is provided with bottom described aggregate bin.
Be connected with the first ash-valve in the described bottom of tube cell of selecting, described first ash-valve is connected with slag conveyer respectively with described second ash-valve to be carried powder.
Of the present inventionly select powder and receive powder device, tool has the following advantages compared to existing technology:
(1) of the present inventionly select powder and receive powder device, form by selecting tube cell and receiving tube cell, the described tube cell that selects favours horizontal plane setting, and the angle α between itself and horizontal plane is more than or equal to 45 ° and is less than or equal to 90 °, preferably equal 90 ° of settings, and described receipts tube cell is horizontally disposed with; Wherein, select tube cell for completing the classification of powder, receiving tube cell has been then gas solid separation, realizes receiving powder.Its operation principle remains along the described air-flow selecting tube cell axis selecting in tube cell, and utilize the difference of powders property and the difference of powder particles classification, namely the powder of different-grain diameter floating velocity is in the gas flow different; Wherein, the powder that floating velocity is less than air velocity can overcome self gravitation and upwards run under the promotion of uprush, thus can realize and being separated and collecting of air-flow receiving in tube cell; Floating velocity is greater than the powder of air velocity, under the effect of self gravitation, overcomes the motive force of uprush and runs downwards, realizes collecting in the described bottom of tube cell of selecting.
The air-flow carrying powder enters to be received after in tube cell, the ability of carrying powder due to air-flow in horizontal movement process well below air-flow vertical to the ability in motion process, and the speed that air-flow moves in the horizontal direction is well below vertical speed, therefore air-flow receives in the level that enters the concentration of carrying powder after in tube cell will carry powder in the horizontal direction and carry out moving saturated concentration considerably beyond air-flow, so when air-flow moves along level receipts tube cell, the powder carried in air-flow will constantly be separated from air-flow, sedimentation bottom receipts tube cell, realize being separated of powder and air-flow.
Of the present invention select powder and receive powder device have employed above-mentioned operation principle and carry out selecting powder and receiving powder, without the need to configuring necessary high wind speed in centrifugal separation technology selective separation process, the object selecting the wind speed that also only need arrange 2 meter per seconds in tube cell can realize selecting powder and follow-up receipts powder, reduces energy consumption; System components is all operated in low gustiness, not easy to wear, good stability, long service life; The most key, device of the present invention will select powder and receive powder and to be communicated with but selecting tube cell and receiving in tube cell of non-interference is carried out at two, avoids air current flow in centrifugation and, on the impact of receiving powder, improves and select powder and receipts powder efficiency; And the crushing of device entirety is no more than 100Pa, be only conventional centrifugal and be separated the 5-10% selecting powder system crushing, energy-saving effect is obvious.And of the present inventionly select powder and receive powder device and two simple pipelines are only set can realize being separated, so the low cost of manufacture of device of powder and air-flow owing to not needing to arrange centrifugal device.
(2) of the present inventionly select powder and receive powder device, arrange described receipts tube cell to be connected with the described top of tube cell of selecting, and the described top of tube cell of selecting is closed, this avoid powder and from selecting the top of tube cell to fly out, cause dust pollution under uprush promotes.
(3) of the present inventionly select powder and receive powder device, the sectional area arranging described receipts tube cell is several times as much as the described sectional area selecting tube cell, and the sectional area of preferred described receipts tube cell is greater than described 5 times of selecting tube cell sectional area; And describedly select the air velocity in tube cell to be several times as much as air velocity in described receipts tube cell, thus ensure that the air-flow carrying powder enters that receive after tube cell can the consumed energy and slowing down gradually along with the flowing of gas better, add air flow further and receive the contact friction of tube cell inwall and the powder that its inside is carried is separated carry out sedimentation, effectively realizing gas solid separation.
Similarly, of the present inventionly select powder and receive powder device, the length of described receipts tube cell is more than or equal to described tube cell bottom of selecting to 5 times of the height of described connectivity part, because the horizontal length receiving tube cell has a great impact gas-solid separating effect tool, if namely length is long as far as possible, so air-flow just can fully slow down and sedimentation in above-mentioned distance long as far as possible, make powder fully with flow separation, realize air-flow and reach 95% from receipts tube cell import department to air outlet concentration reduction amplitude.
(4) of the present inventionly select powder and receive powder device, one or more guide angle is staggeredly equipped with described choosing on the inwall of tube cell, described guide angle tilts towards a side of described air inlet towards the direction away from described air inlet, because guide angle is tilt towards the direction away from air inlet towards the setting of air inlet one side, thus form the guiding trend along air current flow direction, constrain the flow direction of air-flow, ensure that air-flow carries the order of powder motion; And the setting of guide angle ensure that the powder that floating velocity is large can carry out multiple impacts selection by winnowing through multiple guide angle in the process fallen, and improves the precision of sorting classifying.
In addition, powder and the receipts powder device of selecting of the present invention is formed with transiting slide plate section in the described connectivity part of tube cell and described receipts tube cell of selecting, described transiting slide plate section top is inclined-plane, and described inclined-plane rises near described receipts tube cell one end gradually near described tube cell one end of selecting; Have between the top of described transiting slide plate section and the upper inwall of described receipts tube cell and be suitable for described air-flow and carry the flowing spacing that powder passes through; This ensure that being taken away by air-flow the powder that the level that enters receives the floating velocity of very fraction of tube cell large can drop on the inclined-plane of transiting slide plate section, again enters and selects tube cell to carry out further selection by winnowing through the collision of multiple guide angle after inclined-plane landing.
(5) of the present inventionly select powder and receive powder device, the connectivity part of tube cell and described receipts tube cell is selected and the upper inwall being positioned at described receipts tube cell is provided with baffle plate described, described baffle plate is parallel with described inclined-plane, gas shock will be made to select the top of tube cell to cause powder to be attached to due to the flowing velocity impact of uprush when carrying the airflow passes baffle position of powder like this and select tube cell top, ensure that air-flow carries the powder level that enters as much as possible and receives tube cell, providing safeguard for obtaining higher receipts powder rate.
Accompanying drawing explanation
In order to make content of the present invention more easily be understood, the present invention is further detailed content of the present invention with detailed description of the invention by reference to the accompanying drawings;
It is the structural representation selecting powder and receive powder device of the present invention shown in Fig. 1;
It is the structural representation selecting powder and receipts powder device being provided with guide angle and transiting slide plate section of the present invention shown in Fig. 2;
It is the structural representation selecting powder and receipts powder device being provided with guide angle, transiting slide plate section and baffle plate and slag conveyer of the present invention shown in Fig. 3;
Wherein, Reference numeral is:
1-selects tube cell, and 2-receives tube cell, 3-air inlet, 4-air outlet, 5-air-introduced machine, 6-sack cleaner, 7-airflow circulating pipeline, 8-circulating fan, 9-guide angle, 10-transiting slide plate section, 11-inclined-plane, 12-baffle plate, 13-aggregate bin, 14-first ash-valve, 15-second ash-valve, 16-slag conveyer.
Detailed description of the invention
embodiment 1
The device selecting powder and receive powder of the present invention, its structure is shown in Fig. 1, this device comprises and selects tube cell 1 and receive tube cell 2 as we can see from the figure, on the described top of tube cell of selecting, charging aperture (selecting place shown in tube cell left side central portion arrow in figure) is set, lower end arranges discharging opening and air inlet 3, the described tube cell 1 that selects is arranged perpendicular to horizontal plane, that is selects the angle α between tube cell 1 axis and horizontal plane to equal 90 °; Described receipts tube cell 2 is horizontally disposed with, described receipts tube cell 2 is connected with the described top of tube cell 1 of selecting, and the described top of tube cell 1 of selecting is closed, described receipts tube cell 2 is being provided with air outlet 4 away from described one end selecting tube cell 1 to be connected, connect at described air outlet 4 place and air-introduced machine 5 is set, in figure, white arrow represents the flow direction of powder, and black arrow represents the flow direction of air-flow.
In the present embodiment, the described tube cell 1 that selects is rectangular tube with receiving tube cell 2, and the sectional area of described receipts tube cell 2 is described more than 5 times of selecting tube cell 1 sectional area, selects in the present embodiment to be set to 6 times; The length of described receipts tube cell 2 is more than or equal to described tube cell 1 bottom of selecting to 5 times of the height of described connectivity part, selects in the present embodiment to be set to 6 times; Also center of circle pipe etc. can be selected according to construction demand for selecting the selection of tube cell 1 and receipts tube cell 2.During work, describedly select the air velocity in tube cell 1 can be set to be several times as much as the air velocity in described receipts tube cell 2, preferably select the air velocity in tube cell 1 to be more than 5 times of the air velocity in described receipts tube cell 2, select in the present embodiment to be set to 6 times.
In addition, the described tube cell 1 that selects can be set to favour horizontal plane setting, angle α between itself and horizontal plane can select to be more than or equal to 45 ° and the unspecified angle being less than or equal to 90 °, when described select tube cell 1 to select non-perpendicular state to arrange time, the air intake direction of air inlet is preferably arranged along the described axis of tube cell of selecting.
Wherein, the selection for air-introduced machine is preferably negative pressure induced wind machine, this ensure that powder there will not be leakage, better achieves the sealing of device to powder.
As the embodiment that can optimize further, the device of powder and receipts powder that selects of the present invention can also on the basis of said structure, further sack cleaner 6 is set between described air-introduced machine 5 and described air outlet 4, the setting of sack cleaner ensure that air-flow first can carry out the filtration, purification of powder through it when discharging through air-introduced machine 5, avoids the excessive contaminated environment of powder.
Owing to also carrying some powders in air outlet 4 air-flow out, in order to realize this part powder better in the further selection by winnowing selected in tube cell 1 and collection, as the embodiment that can convert, can also on the basis of above-mentioned embodiment, extended airflow circulating pipeline 7 between described air outlet 4 and described sack cleaner 6, described airflow circulating pipeline 7 is connected with described air inlet 3 by circulating fan 8, such air-flow through receive tube cell 2 air outlet out after namely this part can be carried powder by airflow circulating pipeline 7 and circulating fan 8 the air-flow input that again circulates select in tube cell 1, carry out further selection by winnowing.Wherein, described airflow circulating pipeline 7 can be selected directly to be connected with described air outlet 4, also can select to be set on the connecting line of described air outlet 4 and described sack cleaner 6 or air-introduced machine 5.
embodiment 2
The device selecting powder and receive powder of the present invention, can also on the architecture basics of described device in embodiment 1, be staggeredly equipped with one or more guide angle 9 described choosing on the inwall of tube cell 1 further, described guide angle tilts (as shown in Figure 2) towards a side of described air inlet 3 towards the direction away from described air inlet 3.As we can see from the figure, guide angle 9 is set to equilateral triangle, and between adjacent described guide angle 9, adjacent both sides parallel; As the embodiment that can convert, as long as the setting of guide angle 9 also can be selected to be set to meet to tilt towards the direction away from described air inlet 3 at the side of described guide angle 9 towards described air inlet 3, then any shape can be set to away from a side of described air inlet for described guide angle 9, in figure, white arrow represents the flow direction of powder, and black arrow represents the flow direction of air-flow.In the apparatus, after arranging guide angle 9, preferred feedstock mouth is arranged on the described top selecting tube cell 1.
Wherein, being crisscross arranged of guide angle 9 shows as from the described axial cross section selecting tube cell 1, described guide angle 9 indentation is set.
In the present embodiment, select to arrange that to select the length A1 of tube cell 1 to be 0.5 meter of width be 0.8 meter, sectional area is 0.4m
2, the length L receiving tube cell 2 is 8 meters, and height A 2 is 1.2 meters, and sectional area is 2.1 m
2.Select the air velocity in tube cell 1 to be 3 meter per seconds described, the air velocity of described receipts tube cell 2 is 0.57 meter per second.Air-flow wind speed in airflow circulating pipeline 7 and air-introduced machine 5 is 10 meter per seconds.
embodiment 3
In the above-described embodiments, the described device of powder and receipts powder that selects selects the direct through connection of the connectivity part of tube cell 1 and described receipts tube cell 2 described; During real work, when air-flow carries material to connectivity part, often there will be and meet the little supports for material down-sliding of floating velocity to selecting the problem again repeating selection by winnowing in tube cell, have impact on grinding efficiency like this.For this reason, the device of powder and receipts powder that selects described is in the present embodiment formed with transiting slide plate section 10 in the described connectivity part of tube cell 1 and described receipts tube cell 2 of selecting, as shown in Figure 3, in figure, white arrow represents the flow direction of powder, black arrow represents the flow direction of air-flow, described transiting slide plate section 10 top is inclined-plane 11, and described inclined-plane 11 rises near described receipts tube cell 2 one end gradually near described tube cell 1 one end of selecting; Have between the top of described transiting slide plate section 10 and the upper inwall of described receipts tube cell 1 and be suitable for described air-flow and carry the flowing spacing that powder passes through; In at least one or more guide angle 9 described, have at least a guide angle 9 to be arranged on described choosing on sidewall that tube cell 1 is relative with inclined-plane, described transiting slide plate section 10 top, and described guide angle 9 equal described flowing spacing towards the vertical range between a side and described inclined-plane on described inclined-plane.In the present embodiment, three guide angles are provided with.
On the basis of above-described embodiment, as preferred embodiment, select the connectivity part of tube cell 1 and described receipts tube cell 2 and the upper inwall being positioned at described receipts tube cell is provided with baffle plate 12 described, described baffle plate 12 is parallel with described inclined-plane 11.
In the above-described embodiments, in receipts tube cell 2 when air-flow moves along level receipts tube cell, the powder carried in air-flow will constantly be separated from air-flow, sedimentation bottom receipts tube cell 2, realize being separated of powder and air-flow, collect timely for the ease of being separated the powder obtained, in the present embodiment, utilize air-flow along the flow direction of described air-flow, the aggregate bin 13 that one or more and described receipts tube cell is connected is set bottom described receipts tube cell 1, described aggregate bin 13 can arrange one, two or three or more; The second ash-valve 15 for closed powder is provided with bottom described aggregate bin 13.Be connected with the first ash-valve 14 in the described bottom of tube cell of selecting, described first ash-valve 14 is connected with slag conveyer 16 respectively with described second ash-valve 15 to be carried powder.
In the present embodiment, select to arrange to select the length A1 of tube cell 1 to be 0.4 meter, width is 1 meter, and sectional area is 0.4m
2, the length L receiving tube cell 2 is 12 meters, and height A 2 is 1 meter, and sectional area is 2.8 m
2.Select the air velocity in tube cell 1 to be 2.5 meter per seconds described, the air velocity of described receipts tube cell 2 is 0.35 meter per second.Air-flow wind speed in airflow circulating pipeline 7 and air-introduced machine 5 is 10 meter per seconds.
Select powder of the present invention and receive in powder device, the described arbitrary numerical value selecting the movement velocity of air-flow in tube cell 1 can select to be more than or equal to 2 meter per seconds, in described receipts tube cell 2, the horizontal movement speed of air-flow can select the arbitrary numerical value being less than or equal to 1 meter per second.
The powder that selects of the present invention is with when receiving powder device busy, the air-flow of the movement velocity with certain air-flow is blown into and selects in tube cell 1 by blower fan, powder is selected the charging aperture of tube cell 1 to be constantly filled into select in tube cell 1 through described simultaneously, the process of powder from charging aperture falls downward, air-flow utilizes its motive force to be blown afloat by powder, or utilize motive force to be blown afloat by powder along the guide effect of guide angle, and utilize the difference of powders property and the difference of powder particles classification, floating velocity is greater than the powder of air velocity, under the effect of self gravitation, overcome the motive force of uprush and run downwards, realize collecting in the described bottom of tube cell 1 of selecting, the powder that floating velocity is less than air velocity can overcome self gravitation and upwards run under the promotion of uprush, the air-flow carrying powder then enters to be received in tube cell, the ability of carrying powder due to air-flow in horizontal movement process in described receipts tube cell 2 well below air-flow vertical to the ability in motion process, and the speed that air-flow moves in the horizontal direction is well below vertical speed, therefore air-flow receives in the level that enters the concentration of carrying powder after in tube cell will carry powder in the horizontal direction and carry out moving saturated concentration considerably beyond air-flow, so when air-flow moves along level receipts tube cell, the powder carried in air-flow will constantly be separated from air-flow, sedimentation bottom receipts tube cell 2, realize being separated of powder and air-flow.Powder after sedimentation can be received after settling after powder terminates and carry out unifying to collect, also aggregate bin 13 can be utilized to be collected in aggregate bin while powder sedimentation, and by the ash-valve be connected with described aggregate bin, powder to be discharged from selecting powder and receiving powder device.Powder after discharge can further by slag conveyer 16 by powder carry to specified location.
In above process, for arranging selecting powder and receiving powder device of guide angle, after selecting powder, the material that floating velocity is little is taken away by uprush the level that enters and is received in tube cell, the powder that floating velocity is large has then dropped on the inclined-plane of transiting slide plate section 10, and select tube cell 1 along inclined-plane towards selecting tube cell to glide to falling into, then carry out repeatedly selection by winnowing by multiple guide angle 9, the powder of last Large stone falls into and selects tube cell 1 to collect from bottom.
Although the present invention is elaborated it by above-mentioned specific embodiment; but; those skilled in the art should be understood that and made on this basis not exceed any form of claims and the change of details, all belong to invention which is intended to be protected.
Claims (14)
1. select powder and receive a powder device, it is characterized in that, comprise and select tube cell (1) and receive tube cell (2), arrange charging aperture on the described top of tube cell (1) of selecting, lower end arranges discharging opening, and the described tube cell (1) that selects is communicated with setting with described receipts tube cell (2);
The described tube cell (1) that selects favours horizontal plane setting, and the angle α between itself and horizontal plane is more than or equal to 45 ° and is less than or equal to 90 °; Described receipts tube cell (2) is horizontally disposed with;
The described lower end of tube cell (1) of selecting is provided with air inlet (3), and described receipts tube cell (2) is being provided with air outlet (4) away from described one end selecting tube cell (1) to be connected, and connects arrange air-introduced machine (5) at described air outlet place;
Described receipts tube cell (2) is connected with the described top of tube cell (1) of selecting, and closes the described top of tube cell (1) of selecting;
The sectional area of described receipts tube cell (2) is greater than described 2-5 times of selecting tube cell (1) sectional area;
The length of described receipts tube cell (2) is more than or equal to described tube cell (1) bottom of selecting to 5 times of the height of described connectivity part;
The described movement velocity of air-flow in tube cell (1) of selecting is more than or equal to 2 meter per seconds; In described receipts tube cell (2), the horizontal movement speed of air-flow is less than or equal to 1 meter per second.
2. according to claim 1ly select powder and receive powder device, it is characterized in that, the described tube cell (1) that selects is arranged perpendicular to horizontal plane.
3. according to claim 2ly select powder and receive powder device, it is characterized in that, described air-introduced machine (5) is connected with described air outlet (4) by sack cleaner (6).
4. according to claim 3ly select powder and receive powder device, it is characterized in that, extended airflow circulating pipeline (7) between described air outlet (4) and described sack cleaner (6), described airflow circulating pipeline (7) is connected with described air inlet (3) by circulating fan (8).
5. according to claim 4ly select powder and receive powder device, it is characterized in that, described airflow circulating pipeline (7) is connected with described air outlet (4).
6. according to claim 5ly select powder and receive powder device, it is characterized in that, the described longitudinal section of tube cell (1) and described receipts tube cell (2) of selecting is rectangular.
7. according to claim 6ly select powder and receive powder device, it is characterized in that, the sectional area of described receipts tube cell (2) is greater than described 5 times of selecting tube cell (1) sectional area.
8. according to arbitrary described the selecting powder and receive powder device of claim 1-7, it is characterized in that, be staggeredly equipped with one or more guide angle (9) described choosing on the inwall of tube cell (1), described guide angle tilts towards a side of described air inlet towards the direction away from described air inlet.
9. according to claim 8ly select powder and receive powder device, it is characterized in that, between adjacent described guide angle, adjacent both sides parallel, and described guide angle is triangular in shape.
10. according to claim 9ly select powder and receive powder device, it is characterized in that, transiting slide plate section (10) is formed with in the described connectivity part of tube cell (1) and described receipts tube cell (2) of selecting, described transiting slide plate section (10) top is inclined-plane (11), and described inclined-plane (11) rise near described receipts tube cell (2) one end gradually near described tube cell (1) one end of selecting; Have between the top of described transiting slide plate section (10) and the upper inwall of described receipts tube cell (2) and be suitable for described air-flow and carry the flowing spacing that powder passes through.
11. according to claim 10ly select powder and receive powder device, it is characterized in that, in at least one or more guide angle described, have at least a guide angle to be arranged on described choosing on sidewall that tube cell (1) is relative with inclined-plane, described transiting slide plate section top, and described guide angle equal described flowing spacing towards the vertical range between a side and described inclined-plane on described inclined-plane.
12. according to claim 11ly select powder and receive powder device, it is characterized in that, select the connectivity part of tube cell (1) and described receipts tube cell (2) and the upper inwall being positioned at described receipts tube cell (2) is provided with baffle plate (12) described, described baffle plate (12) is parallel with described inclined-plane (11).
13. according to claim 12ly select powder and receive powder device, and it is characterized in that, along the flow direction of described air-flow, arrange one or more aggregate bin (13) in described receipts tube cell (2) bottom, described aggregate bin (13) is connected with described receipts tube cell (2); Described aggregate bin (13) bottom is provided with the second ash-valve (15) for closed powder.
14. according to claim 13ly select powder and receive powder device, it is characterized in that, be connected with the first ash-valve (14) in the described bottom of tube cell (1) of selecting, described first ash-valve (14) and described second ash-valve (15) are connected with slag conveyer (16) respectively carries powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110280683.7A CN102366745B (en) | 2011-09-21 | 2011-09-21 | Powder selecting and collecting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110280683.7A CN102366745B (en) | 2011-09-21 | 2011-09-21 | Powder selecting and collecting device |
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| Publication Number | Publication Date |
|---|---|
| CN102366745A CN102366745A (en) | 2012-03-07 |
| CN102366745B true CN102366745B (en) | 2015-03-11 |
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| CN201110280683.7A Active CN102366745B (en) | 2011-09-21 | 2011-09-21 | Powder selecting and collecting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728551B (en) * | 2012-06-29 | 2015-05-13 | 卓卫民 | Powder selection and collection device |
| CN106955799A (en) * | 2017-05-22 | 2017-07-18 | 四川理工学院 | A kind of supergravity multistage cyclonic separation ore-dressing plant |
| CN113560161B (en) * | 2021-09-26 | 2022-06-14 | 新沂市锡沂高新材料产业技术研究院有限公司 | A screening plant for ceramic raw materials |
| CN117380541B (en) * | 2023-12-12 | 2024-02-23 | 江苏威拉里新材料科技有限公司 | Metal powder separation equipment and method |
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| CN1182644A (en) * | 1996-11-17 | 1998-05-27 | 郑康平 | Pneumatic separator for extracting heading breeze from metal ore |
| CN201271548Y (en) * | 2008-09-28 | 2009-07-15 | 昆明理工大学 | Aerosol flocculation device |
| JP4315905B2 (en) * | 2002-09-24 | 2009-08-19 | 株式会社菊水製作所 | Method and apparatus for dust removal, vertical conveyance and dust collection of granules |
| CN202343454U (en) * | 2011-09-21 | 2012-07-25 | 卓卫民 | Power selecting and collecting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912844A (en) * | 2010-07-07 | 2010-12-15 | 大连卓远重工有限公司 | Domestic waste winnowing method and winnowing device |
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| GB857054A (en) * | 1958-02-27 | 1960-12-29 | Miag Vertriebs Gmbh | Improvements in or relating to the pneumatic conveying and separating of flowable material such as loose granular material |
| CN1182644A (en) * | 1996-11-17 | 1998-05-27 | 郑康平 | Pneumatic separator for extracting heading breeze from metal ore |
| JP4315905B2 (en) * | 2002-09-24 | 2009-08-19 | 株式会社菊水製作所 | Method and apparatus for dust removal, vertical conveyance and dust collection of granules |
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| CN202343454U (en) * | 2011-09-21 | 2012-07-25 | 卓卫民 | Power selecting and collecting device |
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| CN102366745A (en) | 2012-03-07 |
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