CN108423969A - A kind of spray dryer for gelatin Treatment of Sludge - Google Patents

Abstract

The invention discloses a kind of spray dryers for gelatin Treatment of Sludge, including cylinder, the hothouse of gas-liquid mixed room and lower part including top in cylinder, sludge conveyor and hot-air convection device are connected in the middle and upper part of gas-liquid mixed room, the sludge of sludge conveyor conveying and the hot-air of hot-air convection device conveying form convection current in gas-liquid mixed room, uniformly distributed multiple air nozzles between gas-liquid mixed room and the hothouse of lower part, air nozzle comes from the indoor sludge of gas-liquid mixed for forming upward stream of hot air, hothouse in gas-liquid mixed room for dry.Pass through the mating reaction of sludge conveyor and hot-air convection device, liquid sludge is set quickly to form Granular sludge, there will be the shaping rates that effect improves mud granule for air nozzle, qualified dewatered sludge is most obtained after redrying afterwards, whole process less energy consumption, it is time-consuming short, solve the problems, such as that traditional sludge drying machine high energy consumption, time-consuming.

Description

A kind of spray dryer for gelatin Treatment of Sludge

Technical field

The present invention relates to gelatin sludge drier fields, more particularly to a kind of spray drying for gelatin Treatment of Sludge Machine.

Background technology

In manufacturing of gelatin, the generation of waste water is mainly derived from the process such as degreasing, pickling, liming, neutralization, glue, When carrying out purified treatment to waste water, a large amount of sludge are will produce, tradition is to incite somebody to action to the processing method for the sludge that gelatine wastewater generates Sludge, which is sent into filter press, carries out press filtration, then obtain water content 18-27wt% filter cake, filter cake sent after the desiccation of stockyard to Chemical fertilizer factory.Due to containing a large amount of bone waste material, organic matter and colloid in filter cake, in the drying process of stockyard, in the work of microorganism Under, filter cake is released maladorous gas by the decomposition of microorganism, causes stacking site environment severe, and stink diffuses, Not only Eroded the health of field worker, and in the case where national environmental protection is suppressed, the environmental protection pressure of manufacturing of gelatin enterprise is more next It is bigger.

In order to solve the environmental protection pressure, the usual way of manufacturing of gelatin enterprise is that filter cake is sent into drying machine to be dried It stacks again afterwards（Filter cake after drying can effectively prevent the decomposition of microorganism）, or directly give filter cake to chemical fertilizer factory.For The first processing mode, since filter cake is in bulk, and poor thermal conductivity, in order to make the water content of filter cake in 5wt% or less（Water content Prevent the best results of microorganism decomposition, filter cake that from can stacking for a long time in 5wt% filter cakes below）, in the drying process, Traditional spiral paddle drying machine and rake type drier energy consumption is larger, and time-consuming, often handles 1 ton of filter cake, and energy consumption reaches 60 degree, It takes and reaches 1h, and filtration cakes torrefaction is not thorough, filter cake core water content is higher, and in stacking process, the waste heat of filter cake forces The water evaporation of filter cake core out forms steam, should not be deposited in closed stacking field；For second of processing mode, change Fertile factory's raw material use cost is got higher, and profit is lower, and the environmental protection pressure of chemical fertilizer factory increases, and is unfavorable for the utilization again of filter cake.

As a kind of R＆D direction, if directly processing is dried in sludge, the technique that setting filter press can be saved, And then the cost input of Treatment of Sludge is greatly decreased, obtained dewatered sludge can disposably reach desiccation index, and eliminating also needs The step of broken desiccation, often handles 1 ton of gelatin sludge however, in existing sludge drier（Water content is in 60-67wt%）, Energy consumption reaches 110 degree or more, takes and reaches 3.5h or more, this undoubtedly increases the cost input of enterprise, and use cost relatively filters Dry use cost is high afterwards.

Invention content

The goal of the invention of the present invention is：In view of the above problems, a kind of spray for gelatin Treatment of Sludge is provided Mist drying machine keeps liquid sludge dry in quick heating by the mating reaction of sludge conveyor and hot-air convection device Dry lower formation Granular sludge, there will be the shaping rates that effect improves mud granule for the thermal updrafts that air nozzle is formed, finally Qualified graininess dewatered sludge is obtained after hothouse redrying, whole process less energy consumption is time-consuming short, solves traditional dirt Mud drying machine high energy consumption, the problem of time-consuming.

The technical solution adopted by the present invention is as follows：A kind of spray dryer for gelatin Treatment of Sludge, including cylinder, cylinder Body bottom is equipped with discharge port, includes the hothouse of the gas-liquid mixed room and lower part on top, the middle and upper part of gas-liquid mixed room in cylinder It connects sludge conveyor and hot-air convection device, sludge conveyor and hot-air convection device is separately positioned on outside cylinder Both sides, and the hot-air of sludge and hot-air convection the device conveying of sludge conveyor conveying is formed pair in gas-liquid mixed room Stream, to realize that liquid is atomized, uniformly distributed multiple air nozzles, air nozzle are used between gas-liquid mixed room and the hothouse of lower part Upward stream of hot air is formed in gas-liquid mixed room, hothouse comes from the indoor sludge of gas-liquid mixed for dry.

Further, be provided between hot-air convection device and air nozzle with through-hole sludge block, sludge block with The inner wall of cylinder is fixedly connected, and air nozzle is in tilted layout on cylinder, and the axis direction of air nozzle is towards gas-liquid mixed It is indoor.

Further, sludge conveyor includes sludge carrier pipe, and sludge carrier pipe includes outer pipe, and inner circle is equipped in outer pipe Pipe, expansion forms horn mouth and is fixedly connected with the inner wall sealing of outer pipe by horn mouth outward for one end of interior pipe, another One end is closed to form the first cecum, and the first cecum trepanning forms gas distributing disc, and the first cecum passes through the first sludge with through-hole Distribution grid is fixedly connected with the inner wall sealing of outer pipe, and the spacing between outer pipe and interior pipe forms the first sludge channel, the One sludge channel is connected with sludge pipe, and interior pipe is connected with gas pipeline.

As a kind of alternative, sludge conveyor includes sludge carrier pipe, and sludge carrier pipe includes outer pipe, outer pipe One end and gas-liquid mixed room connect, along the axis direction of outer pipe, divides to form sludge channel by isolation board in outer pipe And gas passage, one end of sludge channel and gas passage are respectively turned on external sludge pipe and gas pipeline, isolation board One end is fixedly connected by two arc distribution grids with through-hole with the inner wall of outer pipe, the one end in sludge channel and gas passage Disc seal, sludge and gas are distributed by arc respectively, gas-liquid mixed is realized by arc distribution grid.

Further, hot-air convection device includes convective tube, and formation convection current in gas-liquid mixed room is stretched into one end of convective tube Mouthful, the other end stretches out outside gas-liquid mixed room to be connected with gas pipeline, and the mud guard of through-hole is provided at the port of convection mouth, Mud guard is for preventing sludge from entering in convective tube.

Further, drying cylinder is provided in hothouse, drying cylinder includes the shell for having circular configuration, and cylinder passes through support arm It is fixedly connected with shaft, drying cylinder is rotatably connected on cylinder, and drying cylinder is driven by power plant, and drying cylinder has vane type Structure, impeller are distributed on shell, and impeller includes impeller blade, impeller slot, side plate and bottom plate, and impeller slot is done for accommodating material The sludge on dry room top is fallen into the impeller of drying cylinder, and hothouse carries out heating to the sludge on drying cylinder by hot-air and does It is dry.

Further, inlet cylinder is arranged in the shaft of drying cylinder, inlet end and the hot-air generating means of inlet cylinder are connected, Support arm and shell all have hollow structure, and inlet cylinder is connected by support arm and shell, and the bottom plate setting of impeller is in shell towards shaft On outer end face, shell has multiple and one-way exhaust towards multiple one-way vents are evenly equipped on the end face outside shaft on bottom plate Hole correspondingly through-hole, the hot-air that one-way vent is used to be discharged in cylinder.

Further, the outside of convective tube is rotatably connected to moving blade, dynamic outside shaft one end connection of moving blade Power apparatus, the other end connect moving blade, and moving blade is used for striking off the mud point on cylinder inboard wall.

Further, one end of outer pipe is sealed by seal disc, and the other end is connected by expansion tube and gas-liquid mixed room, The caliber size of expansion tube is more than the caliber size of outer pipe.

In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：The present invention is by being arranged sludge Conveyer and hot-air convection device carry out gas-liquid convection using sludge conveyor and hot-air convection device, are achieved in The process of liquid sludge atomization, the high-temperature hot air under the action of, liquid sludge is quickly dried to be formed while atomization Granular sludge, and the thermal updrafts that air nozzle provides can then extend sludge in the gas-liquid mixed indoor residence time, have Help liquid sludge forming, and then effectively increase the shaping rate of mud granule, is most closed after hothouse redrying afterwards The graininess dewatered sludge of lattice, whole process less energy consumption takes short, solves traditional sludge drying machine high energy consumption, time-consuming Problem.

Description of the drawings

Fig. 1 is a kind of spraying sludge drier structural schematic diagram of the present invention；

Fig. 2 is a kind of sludge carrier pipe structural schematic diagram of the present invention；

Fig. 3 is second of sludge carrier pipe structural schematic diagram of the present invention；

Fig. 4 is the third sludge carrier pipe structural schematic diagram of the present invention；

Fig. 5 is a kind of anti-blocking portion's structural schematic diagram of the present invention；

Fig. 6 is the anti-blocking portion's structural schematic diagram of another kind of the present invention；

Fig. 7 is the structural schematic diagram under anti-blocking portion's working condition in Fig. 6；

Fig. 8 is the screening plant part-structure schematic diagram of the present invention；

Fig. 9 is the active sieve plate structural schematic diagram of the present invention；

Figure 10 is the fixed screen deck structural schematic diagram of the present invention；

Figure 11 is the active sieve plate sliding matching structure schematic diagram of the present invention；

Figure 12 is the drying drum structure schematic diagram of the present invention；

Figure 13 is the blade wheel structure schematic diagram of the present invention.

It is marked in figure：1 is cylinder, and 2 be dust catcher device, and 3 be discharge port, and 4 be screening plant, and 401 be active sieve plate, 402 be fixed screen deck, and 403 be sliding rail, and 404 be tooth socket, and 405 be slide teeth, and 406 be rotating wheel, and 407 be double wedge, and 408 be circle Column roller, 409 be rolling groove, and 410 be sealing plate, and 5 be gas-liquid mixed room, and 6 be hothouse, and 601 be drying cylinder, and 602 be shaft, 603 be impeller, and 604 be inlet cylinder, and 605 be support arm, and 606 be shell, and 607 be impeller blade, and 608 be impeller slot, and 609 be side plate, 610 be bottom plate, and 7 be sludge conveyor, and 8 be hot-air convection device, and 801 be convective tube, and 9 be sludge carrier pipe, and 901 be outer circle Pipe, 902 be seal disc, and 903 be expansion tube, and 904 be isolation board, and 905 be sludge channel 906 be gas passage, and 907 be that arc divides Fabric swatch, 908 be interior pipe, and 909 be air shooter, and 910 be the first cecum, and 911 be gas-liquid distributing disc, and 912 be the first sludge Distribution grid, 913 be the first sludge channel, and 914 be the first sludge import, and 915 be the second cecum, and 916 be gas distribution grid, 917 It is premixing cavity for the second Distribution of sludge plate, 918,919 be the second sludge channel, and 920 be the second sludge import, and 10 be sludge pipe Road, 11 be gas pipeline, and 12 be anti-blocking portion, and 1201 be rounded portions, and 1202 be gear, and 1203 be cutting part, 1204 for sludge into Mouthful, 1205 be sludge outlet, and 1206 be engagement circle, and 1207 be gear block, and 1208 be external contacting surface, and 1209 be interior contact surface, 1210 be sludge communication port, and 13 be air nozzle, and 14 block for sludge, 15 cabinets in order to control.

Specific implementation mode

Below in conjunction with the accompanying drawings, the present invention is described in detail.

In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.

As shown in Figure 1, a kind of spray dryer for handling gelatin sludge, including cylinder 1, the top connection of cylinder 1 Dust catcher device 2, bottom end are equipped with discharge port 3, and dust catcher device 2 is used to be discharged air-flow in cylinder 1, passes through screening in cylinder 1 Device 4 is divided into top gas-liquid mixed room 5 and lower dry chamber 6, the middle and upper part of gas-liquid mixed room 5 to connect 7 He of sludge conveyor Hot-air convection device 8, sludge conveyor 7 and hot-air convection device 8 are symmetrical and are vertically set on the both sides of cylinder 1, and position In the outside of cylinder 1, sludge conveyor 7 is used to convey gelatin sludge into gas-liquid mixed room 5, and hot-air convection device 8 is used for Hot-air is conveyed into gas-liquid mixed room 5, and forms convection current with sludge.Hothouse 6 passes through screening plant 4 and gas-liquid mixed room 5 Lower part connect, hothouse 6 is for the dry sludge in gas-liquid mixed room 5.

In one embodiment of the invention, sludge conveyor 7 includes sludge carrier pipe 9 and switch board 15, such as Fig. 1 institutes Show, sludge carrier pipe 9 is fixedly connected by support construction with the top of switch board 15, and the lower end of switch board 15 is fixed with ground to be connected It connects, switch board 15 is used to control outputting and inputting for hot-air, and provides power for each moving component on cylinder 1.

As an implementation, sludge carrier pipe 9 includes outer pipe 901, as shown in Fig. 2, one end of outer pipe 901 is logical The sealing of seal disc 902 is crossed, the other end can be connected by expansion tube 903 and gas-liquid mixed room 5, the caliber size of expansion tube 903 More than the caliber size of outer pipe 901, along the axis direction of outer pipe 901, shape is divided by isolation board 904 in outer pipe 901 At sludge channel 905 and gas passage 906, sludge channel 905 is located at the top of gas passage 906, one end of isolation board 904 with Seal disc 902 is fixedly connected, and the other end is fixedly connected by two arc distribution grids 907 with the inner wall of outer pipe 901.For Sludge and gas is set preferably to form convection current, arc distribution grid 907 is symmetrical arranged about isolation board 904, arc distribution grid 907 The center of circle close to isolation board 904, one end of sludge channel 905 and gas passage 906 is sealed by arc distribution grid 907 respectively, Uniformly distributed multiple through-holes on arc distribution grid 907, in order to which sludge and gas pass through, sludge and gas pass through arc distribution grid 907 Gas-liquid mixed is realized in into expansion tube 903 and forms gas-liquid flow, the other end difference of sludge channel 905 and gas passage 906 Sludge pipe 10 outside connecting and gas pipeline 11.Among the above, the main function of expansion tube is：It is mixed to provide larger gas-liquid Space is closed, makes gas-liquid while being sufficiently mixed, is played the role of similar " atomization ", and then improves the effect of gas-liquid mixed, with Guarantee forms gas-liquid mixed stream.

The operation principle of above-mentioned sludge carrier pipe 9 is：Sludge pipe 10 and gas pipeline 11 are logical to sludge simultaneously respectively Conveying sludge and high-temperature hot air in road 905 and gas passage 906, then by the effect of arc distribution grid 907, sludge is divided Multiple small threads are cut into, hot-air is then divided into multiple little airflows, and small thread carries out convection current with little airflow in expansion tube 903 And gas-liquid flow is formed, and then hot-air is enable quickly to be thermally dried to sludge, the mud point of paste is consequently formed, is sludge It creates good conditions into gas-liquid mixed room 5, particle is formed in gas-liquid mixed room 5 convenient for sludge.If lacking sludge carrier pipe 9 Structure, sludge is fed directly in gas-liquid mixed room 5, then sludge can cannot carry out in gas-liquid mixed room 5 with thermal current It is sufficiently mixed, drying sludge effect cannot be satisfied design requirement, under sludge self gravitation effect, cause sludge in gas-liquid mixed It can be only formed thick paste in room 5, screening plant 4 can not sieve it, and sludge can not be successfully into hothouse 6 Interior, the drying efficiency and effect of hothouse 6 are deteriorated, and cannot reach product requirement.

In the above-described embodiments, the cause of sludge conveyor 7 using the above structure is, conventional dryer is dry to sludge During dry, since its drying efficiency is low, high energy consumption, easily lump, pollute the shortcomings of big, enterprise is very difficult to selection which and comes pair Sludge is dried, and for cost performance not as good as the mode dried afterwards is first filtered, specific comparison can refer to following tables 1, and use this After the sludge conveyor 7 of invention, due to increasing heat exchange area, heat exchange efficiency is improved, shortens heat-exchange time, therefore it is dry Dry efficient, prevented from caking, time-consuming short, technique effect is better than traditional sludge drier.

As an improvement embodiment, in order to improve the gas-liquid mixed effect in sludge carrier pipe 9, sludge carrier pipe Including outer pipe 901, as shown in figure 3, one end of outer pipe 901 is sealed by seal disc 902, the other end passes through expansion tube 903 connect with gas-liquid mixed room 5, and the caliber size of expansion tube 903 is more than the caliber size of outer pipe 901, is set in outer pipe 901 There is an interior pipe 908, expansion forms horn mouth and close by the inner wall of horn mouth and outer pipe 901 outward for one end of interior pipe 908 Envelope is fixedly connected, and the other end is closed to form the first cecum 910,910 trepanning of the first cecum formation gas distributing disc 916, and first Cecum 910 is fixedly connected by the first Distribution of sludge plate 912 with through-hole with the inner wall sealing of outer pipe 901, outer pipe 901 with Spacing between interior pipe 908 forms the first sludge channel 913, and the first sludge channel 913 is connected with sludge pipe 10, interior pipe 908 connect with gas pipeline 11.Liquid flow is passed to by the periphery in gas stream, gas-liquid mixed can be highly realized, effectively carry High gas-liquid mixed effect.

As an improvement embodiment, in order to further increase the gas-liquid mixed effect in sludge carrier pipe 9, with this Graininess can be formed by fully ensuring that sludge enters in gas-liquid mixed room 5, sludge carrier pipe 9 includes outer pipe 901, such as Fig. 4 institutes Show, interior pipe 908 is equipped in outer pipe 901, is equipped with air shooter 909 in interior pipe 908, one end of outer pipe 901 passes through Seal disc 902 seals, and the other end is connected by expansion tube 903 and gas-liquid mixed room 5, and the caliber size of expansion tube 903 is more than The caliber size of outer pipe 901, expansion forms bell shape outward for one end of interior pipe 908, in order to outer pipe 901 Inner wall sealing is fixedly connected, and the other end is closed to form the first cecum 910, and 910 trepanning of the first cecum forms gas-liquid distributing disc 911, the first cecum 910 is fixedly connected by the first Distribution of sludge plate 912 with through-hole with the inner wall sealing of outer pipe 901, interior The horn mouth of pipe 908, the outer wall of interior pipe 908, the first Distribution of sludge plate 912 and outer pipe 901 inner wall combine to form One sludge channel 913, i.e., the spacing between outer pipe 901 and interior pipe 908 form the first sludge channel 913, and the first sludge is logical Road 913 is connected by the first sludge import 914 with sludge pipe 10；One end of air shooter 909 passes through seal disc 902 and gas Body pipeline 11 is connected, and the other end is closed to form the second cecum 915, and 915 trepanning of the second cecum forms gas distributing disc 916, the Two cecums 915 are fixedly connected by the second Distribution of sludge plate 917 with through-hole with the inner wall sealing of interior pipe 908, the second cecum 915 and first there are spacing, the distance between the second cecum 915 and the first cecum 910 space to form premixing between cecum 910 Room 918, the spacing between air shooter 909 and interior pipe 908 form the second sludge channel 919, and the second sludge channel 919 is logical The second sludge import 920 is crossed to connect with sludge pipe 10.

The operation principle of the sludge carrier pipe of the embodiment is：Sludge pipe 10 is simultaneously to the first sludge channel 913 and the Two sludge channels 919 convey sludge, and gas pipeline 11 then conveys hot-air to air shooter 909, in the second sludge channel 919 Sludge by the second Distribution of sludge plate 917 segmentation form multiple small threads, the hot-air in air shooter 909 is by the second cecum Divide 915 to be cut into multiple little airflows, small thread and little airflow in premixing cavity 918 after premixing, under the action of air-flow, to pass through First cecum 910 forms gas-liquid mixed stream to the ejection of expansion tube 903, at this point, the sludge in the first sludge channel 913 is by the first dirt The segmentation of mud distribution grid 912 forms multiple small threads, and small thread mutually mixes in the front of the first cecum 910 with gas-liquid mixed stream and forms dirt The gas-liquid flow of mud density bigger, and then realize hot-air simultaneously to the sludge in the first sludge channel 913 and the second sludge channel 919 Adequately quick heat drying is carried out, and then convenient for forming the paste mud point convenient for forming at expansion tube 903, improves sludge Gas-liquid mixed effect in delivery pipe 9, graininess can be formed by having fully ensured that sludge enters in gas-liquid mixed room 5, be improved Mud point shaping rate.

In the present invention, the shaping rate of mud point is extremely important, can if the mud point shaping rate in gas-liquid mixed room 5 is relatively low Make to attach more paste mud point on the inner wall and screening plant 4 of gas-liquid mixed room 5, drying of these paste mud points in hot-air The lower dried cake of effect, and be tightly adhered on matrix and not easy to fall off, thus lead to inner wall and the screening of gas-liquid mixed room 5 Device 4 causes the entire drying process of sludge to have to stop, drying machine can not because adhering to too many mud point due to cisco unity malfunction Continue that sludge is dried, correspondingly, if the mud point shaping rate in gas-liquid mixed room 5 is higher, the inner wall of gas-liquid mixed room 5 Less with the paste mud point that is attached on screening plant 4, the influence to gas-liquid mixed room 5 and screening plant 4 is smaller, and then conducive to dry The drying process of dry machine, therefore, the higher the better for the shaping rate of the shaping rate of mud point.

Further, it is contemplated that the inner wall of the viscosity of sludge, expansion tube 903 coats one layer of polytetrafluoroethylene ethylene layer（In figure not It draws）, drying effect is influenced to prevent the sludge being sprayed on 903 inner wall of expansion tube bonding, while being deposited on to be discharged The sludge of 903 lower part of expansion tube, sludge carrier pipe 9 are in tilted layout in the middle and upper part of gas-liquid mixed room 5, in order to expansion tube 903 The sludge of lower part flows in gas-liquid mixed room 5.

In one embodiment of the invention, it is contemplated that sludge has the case where caking in transmission process, to prevent from tying Block blocks sludge carrier pipe 9, and anti-blocking portion 12 is provided in sludge pipe 10, and as shown in Fig. 2 to 7, the anti-blocking portion 12 includes circle Shape portion 1201, as shown in figure 4, sludge import 1204 and sludge outlet 1205 are provided in rounded portions 1201, sludge import 1204 Can be symmetricly set on the both ends of rounded portions 1201 with sludge outlet 1205, and sludge import 1204 and sludge outlet 1205 respectively with Sludge pipe 10 is connected to, and gear 1202 and cutting part 1203 is provided in rounded portions 1201, gear 1202 and rounded portions 1201 are not With one heart, gear 1202 can be freely rotated in rounded portions 1201, and it is dynamic that gear 1202 provides rotation by external power plant Power, cutting part 1203 have crescent structure, and the tooth top of gear 1202 and the inner circle arc side of cutting part 1203 are tangent, cutting part 1203 for cutting sludge, and gear 1202 is used to sludge being delivered to cutting part 1203, and cutting part 1203 is coordinated to cut sludge.

Among the above, the operation principle in anti-blocking portion 12 according to the present invention is：When sludge enters anti-blocking portion 12, fall first In the tooth socket of gear 1202, is rotated by gear 1202 and sludge is delivered to cutting part 1203, in cutting part 1203 and gear Under 1202 common squeezing action, the bulk caking in sludge is cut into fritter caking, thus efficiently solves bulk caking The problem of blocking sludge carrier pipe 9.

Further, in order to improve the stifled effect of controlling in anti-blocking portion, nibbling with loop configuration is provided in rounded portions 1201 Circle 1206 is closed, as shown in Figure 6 and Figure 7, engagement circle 1206 is concentric with rounded portions 1201, and multiple engagements are evenly equipped on engagement circle 1206 Block 1207 passes through connection strap between adjacent gear block 1207（It is not marked in figure）It is fixedly connected, gear block 1207 is towards rounded portions Side outside 1201 constitutes external contacting surface 1208, and gear block 1208 constitutes interior contact surface 1209 towards the side in rounded portions 1201, The external contacting surface 1208 and the inner wall of rounded portions 1201 of gear block 1207 are tangent, and the gap of adjacent gear block 1207 constitutes sludge stream Port 1210, gear 1202 are meshed with circle 1206 is engaged, and the rotation of gear 1202 drives 1206 rotation of engagement circle, in gear 1202 are meshed place with circle 1206 is engaged, and gear block 1207 is matched with the tooth socket of gear 1202, and the gear teeth of gear 1202 are located at In sludge communication port 1210, when gear block 1207 is located at sludge import 1204 or sludge outlet 1205, gear block 1207 is blocked Sludge import 1204 or sludge outlet 1205, and then sludge pipe 10 is prevented to convey sludge into anti-blocking portion 12, in other words, nibble The length dimension and height dimension of conjunction block 1207 are all higher than the internal diameter size of sludge import 1204 and sludge outlet 1205, Jin Erke To block sludge import 1204 and sludge outlet 1205.

In order to further increase the cutting effect of cutting part 1203, mode, cutting part 1203 are preferably carried out as one kind With crescent structure, the both ends of cutting part 1203 are pointed, in order to be cut to gelatinous caking, cutting part 1203 External arc and the interior contact surface of gear block 1207 are tangent, and the Inner arc and the tooth top of gear 1202 of cutting part 1203 are tangent.

The stifled principle of controlling in the anti-blocking portion 12 of above-described embodiment is：When sludge enters anti-blocking portion 12 from sludge import 1204, prevent The rotation of gear 1202 in stifled portion 12 drives 1206 rotation of engagement circle, and sludge is caused to enter in anti-blocking portion 12 in a manner of intermittently, To prevent the anti-blocking portion 12 of excessive sludge blockage, when sludge is by sludge communication port 1210 between gear block 1207, bulk Caking can under the promotion of gear block 1207 end of face cutting part 1203, when bulk caking and the end of cutting part 1203 When portion contacts, the space between gear 1202, engagement circle 1206 and cutting part 1203 drastically narrows at this time, and bulk is lumpd common It under squeezing action, is lumpd at fritter by the end cut of cutting part 1203, thus reaches and eliminate bulk caking in sludge pipe 10 Purpose, the mode squeezed is only leaned on compared to tradition, the anti-blocking portion 12 of the embodiment is according to the loading characteristic of glue caking, concentration Extruding force is applied to some stress point of caking, caking can be cut to tearing port under the effect, then by constantly squeezing Pressure caking, tearing port constantly amplified, until bulk caking is cut into until fritter lumps, efficiently solving caking cannot be by Broken problem.In addition, gear 1202, cutting part 1203 and engagement circle 1206 it is tangent two-by-two after, can avoid bulk caking from Other gap locations are slipped away, while can also further be squeezed caking, and caking can be made to become thinner to a certain extent, carried High anti-blocking portion 12 controls stifled effect.

In one embodiment of the invention, hot-air convection device 8 includes convective tube 801, as shown in Figure 1, convective tube 801 one end is stretched into and forms convection mouth in gas-liquid mixed room 5, and the other end is stretched out outside gas-liquid mixed room 5 and connect with gas pipeline It is logical, the mud guard of through-hole is provided at the port of convection mouth（It is not drawn into figure）, mud guard is for preventing sludge from entering convection current In cylinder 801, the operation principle of hot-air convection device 8 is：Gelatin sludge by sludge conveyor 7 with the state of gas-liquid mixed into Enter gas-liquid mixed room 5, and before entering gas-liquid mixed room 5, under the heat drying of hot-air, the sludge quilt that is in a liquid state originally It is dried to the paste mud point of high concentration, paste mud point is done on its surface in a short time under the hot-fluid convection action of convective tube 801 Change form graininess, under the effect of gravity, granular sludge is fallen on screening plant 4, thus complete paste mud point to The transformation of granular mud point, it is further dry to it in order to the hothouse 6 of lower part.Technology caused by such drying mode Effect is：The process by filter press press filtration is eliminated, equipment investment and Treatment of Sludge cost are reduced, the particle obtained Although shape mud point water content is still higher, after the drying of later stage hothouse 6, desiccation degree can meet design and want completely It asks, and granule sludge convection drying and big blocky filter cake convection drying are on drying efficiency and energy consumption, hence it is evident that the former drying efficiency Higher, energy consumption is less, it is possible thereby to which illustrating that the drying mode of the present invention is substantially better than traditional first filters the mode dried afterwards.

Further, it is contemplated that 1 inner wall of cylinder where convective tube 801 still remains the problem of mud point accumulation, in this hair In bright one embodiment, the outside of convective tube 801 is rotatably connected to moving blade（It is not marked in figure）, specifically, rotate leaf The shaft of piece is rotatablely connected by bearing and convective tube 801, the power plant outside shaft one end connection of moving blade, rotation Blade provides rotatory force by external power plant, moving blade is rotated along the inner wall of cylinder 1, thus strikes off in cylinder 1 Mud point on wall, it is therefore prevented that mud point on 1 inner wall of cylinder the problem of luming.

In order to further increase the success rate that the paste mud point entered in gas-liquid mixed room 5 changes to graininess mud point, The top of the lower part of gas-liquid mixed room 5, screening plant 4 is provided with multiple air nozzles 13, as shown in Figure 1, air nozzle 13 inclines It is tiltedly arranged on cylinder 1, and the axis direction of air nozzle 13 is towards in gas-liquid mixed room（That is the slope of the axis of air nozzle More than 0）, the spout of air nozzle 13 stretches into gas-liquid mixed room 5, and air nozzle 13 is used to be formed in gas-liquid mixed room 5 The stream of hot air risen, the stream of hot air of the rising forms convection current with the gas-liquid mixed air-flow of 5 middle and upper part of gas-liquid mixed room, and then makes The mud point of paste delays the decrease speed of mud point while obtaining enough heats, extends mud point in gas-liquid mixed room 5 Residence time, and then paste mud point is contributed to be dried to graininess mud point, effectively increases paste mud point to graininess mud The success rate of point transformation.

Further, though in gas-liquid mixed room 5 there are hot-air convection device 8 and air nozzle 13 in the case of, Or there can be paste mud point to directly fall on screening plant 4 and form caking, the work of screening plant 4 is caused to have some setbacks, in order to Ensure that the sludge fallen on screening plant 4 is not paste, band logical is provided between hot-air convection device 8 and air nozzle 13 The sludge block 14 in hole, as shown in Figure 1, sludge block 14 is fixedly connected with the inner wall of cylinder 1, under sludge block 14 is for intercepting Bulk paste mud point when falling, after bulk paste mud point is intercepted by sludge block 14, in the airflow function of lower air nozzles 13 Under, by it is dry be divided into fritter sludge, fritter sludge to be detached from sludge block 14 after the sieving actoion through screening plant 4 obtain qualification Thus the mud granule of grain size solves the problems, such as that the drying of bulk paste mud point is insufficient and influences the normal work of screening plant 4.

In one embodiment of the invention, screening plant 4 is set between gas-liquid mixed room 5 and hothouse 6, screening plant 4 are mainly used for sieving formation mud granule in gas-liquid mixed room 5, and are crushed to large-sized mud granule, to be accorded with The mud granule for closing Particle size requirements, dries it convenient for the hothouse 6 of lower section again, and screening plant 4 has double-layer structure, such as schemes 8 to shown in Figure 11, and screening plant 4 includes the fixed screen deck 402 of the active sieve plate 401 and lower layer on upper layer, and active sieve plate 401 is located at The lower section of gas-liquid mixed room 5, both ends and the sliding rail 403 of active sieve plate 401 are slidably connected, and sliding rail 403 is fixedly connected on cylinder On body 1, fixed screen deck 402 is arranged in the underface of active sieve plate 401, and there are gap, gravity flow screens between active sieve plate 401 The both ends of plate 402 are fixedly connected on sliding rail 403, and active sieve plate 401 is by power plant along the orbital direction of sliding rail 403 It slidably reciprocates.

Further, in order to enable active sieve plate 401 preferably to be slided along sliding rail 403, active sieve plate 401 is in face of solid Determine to dig on the end face of sieve plate 402 and have tooth socket 404, as shown in figure 9, the tooth socket 404 is located at the end of active sieve plate 401, tooth Slide teeth 405 is provided on slot 404, as shown in figure 11, slide teeth 405 be symmetricly set on tooth socket 404 it is upper it is following on, tooth socket Rotating wheel 406 is placed in 404, rotating wheel 406 is rotatably connected in fixed screen deck 402, and is connect with power plant, such as Figure 10 Shown, rotating wheel 406 is provided with multiple double wedges 407 between symmetrical slide teeth 405 on rotating wheel 406, double wedge 407 is used It is meshed in slide teeth 405, correspondingly, the double wedge 407 on rotating wheel 406 is equal in 90 ° -135 ° along the circumferential direction of rotating wheel 406 Cloth, the number of double wedge 407 is corresponding with the spacing number in slide teeth 405, i.e. the spacing of 407 numbers and slide teeth 405 of double wedge Number is identical.By taking Figure 10 as an example, slide teeth 405 is total up to 5, and the spacing between slide teeth 405 is 4, the number of double wedge 407 It it is 4, double wedge 407 is distributed along the circumferential direction of rotating wheel 406 in 90 °, the sliding operation principle of active sieve plate 401 of the invention It is realized in：Rotating wheel 406 rotates counterclockwise, when the slide teeth of double wedge 407 and 404 top of tooth socket on rotating wheel 406 405 when being meshed, and active sieve plate 401 is moved to the left（When in face of Figure 11, it is moved to the left expression and is moved to the left of Figure 11）, wait turning After double wedge 407 on driving wheel 406 is disengaged from slide teeth 405, active sieve plate 401 stops movement, at this point, active sieve plate 401 The distance to move right reaches range, and the double wedge 407 on rotating wheel 406 then turns to the lower section of rotating wheel 406 and will It is meshed with the slide teeth 405 of 404 lower section of tooth socket, when 405 phase of slide teeth of the double wedge 407 and 404 lower section of tooth socket of rotating wheel 406 When engagement, active sieve plate 401 moves right（When in face of Figure 11, the expression that moves right is moved to the right of Figure 11）, so recycle, Be achieved in active sieve plate 401 moves left and right process.It is dirty that active sieve plate 401 is mainly used for the underproof big grain size of attrition crushing Mud particle, i.e., when active sieve plate 401 moves left and right, on active sieve plate 401, the mud granule of qualified grain size is dropped down onto by sieve pore In the fixed screen deck 402 of lower layer, and underproof mud granule is then stuck at sieve pore, is squeezed under the movement of active sieve plate 401 Crush it is broken, eventually fall into thereby guaranteed that lower layer's fixed screen deck 402 into the mud granule in hothouse 6 grain size all close Lattice carry out rapid draing convenient for hothouse 6 to sludge.In the present invention, the main function of fixed screen deck 402 is cooperation portable screen Plate 401 carries out attrition crushing to the mud granule of off grade size together, in order to ensure squeezing effect, the sieve of active sieve plate 401 Pore size is more than the screen size of fixed screen deck 402.

In above-mentioned screening plant 4, since active sieve plate 401 can directly bear the gravity and impact force of mud granule, it is Guarantee active sieve plate 401 can be slided smoothly, between active sieve plate 401 and fixed screen deck 402 be additionally provided with cylindrical roller 408, as shown in figure 8, active sieve plate 401 is slided by cylindrical roller 408 in fixed screen deck 402, correspondingly, active sieve plate 401 and fixed screen deck 402 on be equipped with the rolling groove 409 rolled for cylindrical roller 408, pass through the support of cylindrical roller 408 Effect, can significantly improve the stressing conditions of active sieve plate 401, active sieve plate 401 is made to be not easy compressive deformation and shaking, guarantee activity Sieve plate 401 can be slided smoothly.

Further, sealing plate 410 is additionally provided between active sieve plate 401 and fixed screen deck 402, as shown in figure 8, sealing plate 410 for sealing the gap at 404 position of tooth socket between active sieve plate 401 and fixed screen deck 402, to prevent mud granule from altering Enter and influence the movement of active sieve plate 401.

In one embodiment of the invention, it is provided with drying cylinder 601 in hothouse 6, it is as shown in figs. 1 and 12, dry Cylinder 601 is rotatably connected on by shaft 602 on cylinder 1, and drying cylinder 601 is driven by the power plant outside cylinder 1, is done There is dry cylinder 601 vane type structure, i.e. the circumferential direction annular spread of drying cylinder 601 to have impeller 603, the object on 6 top of hothouse Material is fallen into the impeller 603 of drying cylinder 601, and hothouse 6 is thermally dried the material on drying cylinder 601 by hot-air.

Further, it is arranged with inlet cylinder 604 in the shaft of drying cylinder 601, as shown in Figure 12 and Figure 13, inlet cylinder 604 Inlet end connected with external air pipeline, inlet cylinder 604 passes through hollow support arm 605 and the toroidal shell on drying cylinder 601 Body 606 is fixedly connected, and shell 606 is for connecting impeller 603, and shell 606 has a hollow structure, support arm 605 respectively with shell 606 hollow structure is connected with inlet cylinder 604, and impeller 603 is fixedly connected on shell 606 towards on the end face outside shaft, impeller 603 Including impeller blade 607, impeller slot 608, side plate 609 and bottom plate 610, impeller slot 608 is for accommodating Granular sludge, bottom plate 610 It is fixedly connected respectively with shell 606 with impeller blade 607, shell 606 is towards being evenly equipped with multiple one-way vents on the end face outside shaft （It is not marked in figure）, there are on bottom plate 610 multiple correspondingly through-holes with one-way vent（It is not marked in figure）, one-way vent For the hot-air in shell 606 to be discharged.The operation principle of drying cylinder 601 of the present invention is：Drying cylinder 601 rotates impeller 603 rotations, the qualified grain size mud granule that screening plant 4 screens out are fallen to respectively in each impeller slot 608, external air Hot-air with certain temperature is delivered in shell 606 by pipeline by inlet cylinder 604, then passes through the list on shell 606 To row of exhausting-gas hole into impeller slot 608, and then the Granular sludge in impeller slot 608 is dried, until 608 turns of impeller slot When moving to a certain position, until mud granule is detached from impeller slot 608 due to gravity, thus complete to do mud granule It is dry.

Further, drying cylinder 601 of the invention also can directly be dried Granular sludge, specifically, can pass through Hot-air heats drying cylinder 601, so that the drying cylinder 601 is in the condition of high temperature, and then impeller 603 is made to have high temperature, when After impeller 603 is contacted with Granular sludge, material is heated using the temperature of itself of impeller 603, and then realizes drying Function, still, which are easy to make 603 fouling of impeller, and later stage cleaning is cumbersome, and heat source is utilized to exist and be wasted, and to dry The material high temperature resistance of dry cylinder 601 is more demanding, is not that one kind being preferably carried out mode.

The superiority of drying machine in order to better illustrate the present invention, table 1 show the drying machine and conventional dry of the present invention The comparison of dry machine performance.

A-represents paddle-dryer；

B-represents rake type drier；

C-represents drying machine with centrifugal spray；

D-represents rotary roller dryer；

E-represents Rollingscratchboarddrier；

The drying machine of F-representative present invention.

Major parameter during table 1, each drying machine gelatin drying sludge（It is calculated with 1000kg sludge）

As shown in Table 1, drying machine of the invention is better than traditional drying machine on drying efficiency, when handling sludge of the same race, It takes and power consumption is less, enterprise's input cost is low, and drying effect is better than the dry effect using drying mode after first press filtration Fruit, power consumption are less than using power consumption dry after first press filtration（1 ton of water content 18-27wt%'s of conventional propeller type drying machine pair Power consumption when filtration cakes torrefaction is about 60 degree）, it is worthy of popularization.

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.

Claims (9)

1. a kind of spray dryer for gelatin Treatment of Sludge, including cylinder, cylinder body bottom is equipped with discharge port, and feature exists In sludge conveyor is connected in the middle and upper part of the hothouse of gas-liquid mixed room and lower part including top in cylinder, gas-liquid mixed room With hot-air convection device, sludge conveyor and hot-air convection device are separately positioned on the both sides outside cylinder, and sludge The sludge of conveyer conveying and the hot-air of hot-air convection device conveying form convection current in gas-liquid mixed room, to realize liquid Body is atomized, and uniformly distributed multiple air nozzles, air nozzle are used in gas-liquid mixed room between gas-liquid mixed room and the hothouse of lower part Interior to form upward stream of hot air, hothouse comes from the indoor sludge of gas-liquid mixed for dry.

2. being used for the spray dryer of gelatin Treatment of Sludge as described in claim 1, which is characterized in that hot-air convection device The sludge block with through-hole is provided between air nozzle, sludge block is fixedly connected with the inner wall of cylinder, and air nozzle inclines It is tiltedly arranged on cylinder, and the axis direction of air nozzle is towards in gas-liquid mixed room.

3. being used for the spray dryer of gelatin Treatment of Sludge as claimed in claim 2, which is characterized in that sludge conveyor includes Sludge carrier pipe, sludge carrier pipe include outer pipe, interior pipe are equipped in outer pipe, expansion forms loudspeaker outward for one end of interior pipe Mouth is simultaneously fixedly connected by horn mouth with the inner wall sealing of outer pipe, and the other end is closed to form the first cecum, the first cecum Trepanning forms gas distributing disc, and the first cecum is fixed by the inner wall sealing of the first Distribution of sludge plate with through-hole and outer pipe to be connected It connects, the spacing between outer pipe and interior pipe forms the first sludge channel, and the first sludge channel is connected with sludge pipe, interior pipe It is connected with gas pipeline.

4. being used for the spray dryer of gelatin Treatment of Sludge as claimed in claim 2, which is characterized in that sludge conveyor includes Sludge carrier pipe, sludge carrier pipe include outer pipe, and one end and the gas-liquid mixed room of outer pipe are connected, along the axis side of outer pipe To outer pipe is interior to be divided to form sludge channel and gas passage by isolation board, one end difference of sludge channel and gas passage One end of sludge pipe and gas pipeline outside connecting, isolation board passes through two arc distribution grids with through-hole and outer pipe Inner wall is fixedly connected, and one end of sludge channel and gas passage is distributed disc seal by arc respectively, and sludge and gas pass through arc Shape distribution grid realizes gas-liquid mixed.

5. the spray dryer for gelatin Treatment of Sludge as described in claim 3 or 4, which is characterized in that hot-air convection Device includes convective tube, and formation convection mouth in gas-liquid mixed room is stretched into one end of convective tube, and the other end stretches out gas-liquid mixed room It is connected outside with gas pipeline, the mud guard of through-hole is provided at the port of convection mouth, mud guard is for preventing sludge entrance pair In flow cartridge.

6. being used for the spray dryer of gelatin Treatment of Sludge as claimed in claim 5, which is characterized in that be provided in hothouse Drying cylinder, drying cylinder include the shell for having circular configuration, and cylinder is fixedly connected by support arm with shaft, drying cylinder rotation connection On cylinder, drying cylinder is driven by power plant, and there is drying cylinder vane type structure, impeller to be distributed on shell, impeller packet Impeller blade, impeller slot, side plate and bottom plate are included, for impeller slot for accommodating material, the sludge on hothouse top falls into the leaf of drying cylinder In wheel, hothouse is thermally dried the sludge on drying cylinder by hot-air.

7. being used for the spray dryer of gelatin Treatment of Sludge as claimed in claim 6, which is characterized in that in the shaft of drying cylinder It is arranged with inlet cylinder, inlet end and the hot-air generating means of inlet cylinder are connected, and support arm and shell all have hollow structure, air inlet Cylinder is connected by support arm and shell, and the bottom plate of impeller is arranged in shell towards on the end face outside shaft, and shell is towards the end face outside shaft On be evenly equipped with multiple one-way vents, have that multiple correspondingly through-hole, one-way vent are used for one-way vent on bottom plate The hot-air in cylinder is discharged.

8. being used for the spray dryer of gelatin Treatment of Sludge as claimed in claim 5, which is characterized in that the outside of convective tube turns It moves and is connected with moving blade, the power plant outside shaft one end connection of moving blade, the other end connects moving blade, turns Movable vane piece is used for striking off the mud point on cylinder inboard wall.

9. the spray dryer for gelatin Treatment of Sludge as described in claim 3 or 4, which is characterized in that the one of outer pipe End is sealed by seal disc, and the other end is connected by expansion tube and gas-liquid mixed room, and the caliber size of expansion tube is more than outer circle The caliber size of pipe.