CN103697679A - Solid and liquid separating, dehydrating and drying integrating machine - Google Patents
Solid and liquid separating, dehydrating and drying integrating machine Download PDFInfo
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- CN103697679A CN103697679A CN201310691500.XA CN201310691500A CN103697679A CN 103697679 A CN103697679 A CN 103697679A CN 201310691500 A CN201310691500 A CN 201310691500A CN 103697679 A CN103697679 A CN 103697679A
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- screw rod
- cylindrical shell
- filter
- solid
- slagging tap
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- 239000007788 liquid Substances 0.000 title claims abstract description 24
- 239000007787 solid Substances 0.000 title abstract description 10
- 238000001035 drying Methods 0.000 title abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000001704 evaporation Methods 0.000 claims abstract description 7
- 230000008020 evaporation Effects 0.000 claims abstract description 7
- 230000018044 dehydration Effects 0.000 claims description 22
- 238000006297 dehydration reaction Methods 0.000 claims description 22
- 238000000926 separation method Methods 0.000 claims description 17
- 239000002893 slag Substances 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 7
- 239000003818 cinder Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000002386 leaching Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 3
- 238000001914 filtration Methods 0.000 abstract 2
- 238000001125 extrusion Methods 0.000 abstract 1
- 239000000706 filtrate Substances 0.000 abstract 1
- 239000010802 sludge Substances 0.000 abstract 1
- 230000035611 feeding Effects 0.000 description 13
- 239000004744 fabric Substances 0.000 description 4
- 239000012065 filter cake Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Drying Of Solid Materials (AREA)
- Filtration Of Liquid (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a solid and liquid separating, dehydrating and drying integrating machine. The solid and liquid separating, dehydrating and drying integrating machine comprises a cylinder body and a spiral propeller, wherein the spiral propeller is arranged in the cylinder body and consists of a rotating shaft, a spiral blade, a feeding screw rod and a dreg-discharging screw rod; the feeding screw rod and the dreg-discharging screw rod are respectively connected to the two ends of the rotating shaft, are respectively arranged at the two end parts of the cylinder body and are respectively meshed with spiral holes in the two end parts of the cylinder body; an air-inlet passage and an air-outlet hole are formed in the rotating shaft; fixed filtering sheets and moveable filtering sheets, which are laminated, are sleeved on the periphery of the spiral blade; a feed inlet and a dreg-discharging outlet are formed in the two end parts of the cylinder body; a water outlet and a vacuum opening are formed in the cylinder body. Water in a material is quickly filtered and a filtrate is dried through spiral extrusion, vacuum suction, negative pressure evaporation and high-temperature drying, so that the solid and liquid separating efficiency is improved, the solid and liquid separating effect is good, and the water content of sludge is enabled to be reduced to 30 to 55 percent.
Description
Technical field
The present invention relates to a kind of device for the capable drying and dehydrating of water-containing materials is processed, belong to solid-liquid separation technique field.
Background technology
In the production process of the industries such as food, beverage, chemical industry, leather, wlding, papermaking, printing and dyeing, pharmacy, municipal wastewater processing engineering or sewage disposal system, produce the material (mud) with higher moisture, the dehydration equipment that all will use Separation of Solid and Liquid carries out processed, and application is at present folded spiral shell machine (i.e. folded spiral shell formula dewaterer) more widely.The folded spiral shell main body of folded spiral shell machine is mutually stacked by retainer ring and the ring that moves about, helical axis runs through the filter wherein forming, leading portion is concentrated portion, back segment is dehydration portion, have compact to design, be convenient to maintenance and change, should not stop up, the feature such as power consumption is low, fault is few, handling safety, long service life.When helical axis rotates, the multiple retainer ring that is located at helical axis periphery relatively moves with the ring that moves about, and under Action of Gravity Field, water leaches from the folded czermak space relatively moving, and realizes concentrated fast.Pass through concentrated material along with the rotation of helical axis is constantly moved forward; Along mud cake Way out, the pitch of helical axis diminishes gradually, and the gap between ring and ring also diminishes gradually, and the volume of helical cavity constantly shrinks; In exit, press gradually and strengthen, under helical axis successively continuous operation promotes, the discharge that is squeezed of the moisture in material, filter cake solid content constantly raises, and finally realizes the continuous dehydration of material.When being rotated in of helical axis promotes material and be transported to dehydration portion from concentrated portion, the ring that promotes to move about constantly rotates, and drives retainer ring cleaning filter seam, prevents from stopping up, and has self-cleaning function.But in the mud cake after folded spiral shell machine dehydration, moisture content is still higher, reach 70-85%, and efficiency is lower.
Vacuum hydroextractor is also a kind of dehydration equipment, comprise hollow rotary drum and extract system and transmission device, hollow rotary drum is partly immersed in material trough, and rotary drum is comprised of many and segment that connect interval, surface coverage one deck filter cloth, each interval is connected on dispensing head with a pipe.During drum rotating, due to vacuum action, make the inside and outside mineralization pressure of rotary drum poor, impel material to be adsorbed on filter cloth, liquid flows out along vacuum pipe by filter cloth, by vacuumizing continuously the material that makes to be adsorbed on rotary drum, is dried, form filter cake, by doctor blade device, filter cake is come off from filter cloth.This vacuum hydroextractor filter cake reset procedure is complicated, and in mud cake, moisture content is still higher, and dewatering efficiency is lower.
The disclosed < < of CN101200342 press type material dehydrating device and method of work > > thereof, device comprises frame, material cylinder and hydraulic jack, material cylinder and hydraulic jack are all arranged in frame, and hydraulic jack is positioned at above material cylinder or below material cylinder; Material cylinder is tubular material cylinder, the upper end open of material cylinder, and lower end sealing, apopore is distributed in material cylinder sidewall; Material cylinder upper end is provided with and the pressing plate of expecting that cylinder bore matches, and the back side of pressing plate is connected with the piston of hydraulic jack or upper rack slide plate; Frame is provided with locator; Material cylinder is fixedly mounted on the chassis of frame, and material cylinder top is provided with charging aperture; Material cylinder bottom portion is provided with water retaining disk; Hydraulic jack is provided with hydraulic oil oil pipe.Primer fluid compressing cylinder, the piston driving pressing plate of hydraulic jack moves or drives material cylinder to move upward in material cylinder, and the material in material cylinder is exerted pressure, and by pressing plate, the material in material cylinder is squeezed repeatedly reduction material moisture.Due to the characteristic that moisture is combined with material particles, the dewater unit of this employing mechanical means has certain restriction, and dehydrating effect is difficult to meet the demands.
Summary of the invention
The present invention is directed to the problem that existing solid-liquid separation dehydration technology exists, a kind of good effect of separating solid from liquid, solid-liquid separation dehydration desiccation integral machine that efficiency is high are provided.
Solid-liquid separation dehydration desiccation integral machine of the present invention, by the following technical solutions:
This all-in-one, comprises cylindrical shell and spiral propeller, spiral propeller is arranged in cylindrical shell, spiral propeller is by rotating shaft, helical blade, feed worm and the screw rod of slagging tap form, feed worm and the screw rod of slagging tap are connected to the two ends of rotating shaft, feed worm is connected with transmission mechanism with one of the screw rod of slagging tap, the inside of another screw rod is provided with air admission hole, feed worm and the screw rod of slagging tap are arranged on respectively two ends of cylindrical shell, cylindrical shell both ends are equipped with threaded hole, feed worm and the screw rod of slagging tap mesh with the threaded hole at cylindrical shell both ends respectively, in rotating shaft, be provided with the inlet channel being communicated with air admission hole, on rotating shaft outer wall, be distributed with the venthole being communicated with inlet channel, helical blade is arranged in rotating shaft, the outer race of helical blade is equipped with mutually stackedly determines filter disc and dynamic filter, determining filter disc wears string together and is fixed on two ends of cylindrical shell, determine to arrange between filter disc a dynamic filter for adjacent two, the adjacent formation filter between filter disc and dynamic filter of determining is stitched, an end of cylindrical shell is provided with charging aperture, and the other end is provided with slag notch, cylindrical shell is provided with delivery port and vacuum port.
Cylindrical shell is comprised of can, front stall and back seat, and can is connected between front stall and back seat.
The pitch of helical blade arranges charging aperture one end to the direction that sets out cinder notch one end along cylindrical shell and diminishes gradually.
Determining end to the direction that sets out the end of cinder notch that filter between filter disc and dynamic filter seam arranges charging aperture along cylindrical shell diminishes gradually.
Feed worm and the screw rod of slagging tap are the single head screw rod of circular cross-section, and correspondingly the threaded hole at cylindrical shell both ends is twin-feed spiral hole.Another kind, feed worm and the screw rod of slagging tap are the twin-feed spiral bar of elliptic cross-section, correspondingly the threaded hole at cylindrical shell both ends is three threaded hole.
Spiral propeller drives rotation by transmission mechanism, feed worm and the screw rod of slagging tap are done gyration, water-containing materials is entered by charging aperture, the threaded hole of feed worm and its engagement meshes formation annular seal space continuously, do to these annular seal space constancies of volume at the uniform velocity axially-movable, material is delivered in cylindrical shell by charging aperture, in cylindrical shell, constantly by helical blade, is promoted forward; Temperature enters screw rod at the gas (air or other gas) of 50 ℃-800 ℃ by air admission hole and inlet channel, and enter inner barrel by the venthole being distributed in rotating shaft, fully stir and mix with material, break the water body being lockable in material, water in material is fully leached, and part water is by high-temperature gas heating evaporation; Determine filter disc and dynamic filter relatively moves, the water in material leaches from determine the filter seam between filter disc and dynamic filter simultaneously; By vacuum port, inner barrel is bled simultaneously, make inner barrel in vacuum negative pressure condition, reduce the boiling point of water in material, accelerate the evaporation of moisture in material, the water leaching is discharged by delivery port; The material of being determined after filter disc and dynamic filter dehydration and high temperature mummification forms filter residue, and the threaded hole of slag tap screw rod and its engagement meshes formation annular seal space continuously, does to these annular seal space constancies of volume at the uniform velocity axially-movable, and filter residue is discharged by being delivered to slag notch in cylindrical shell.
The present invention carries extruding, vacuum draw and negative pressure evaporation and high temperature drying by spiral propeller, the moisture in material is leached fast, and make filter residue mummification, has improved the efficiency of Separation of Solid and Liquid, and Separation of Solid and Liquid effective makes body refuse moisture content be reduced to 30-55%.
Accompanying drawing explanation
Accompanying drawing is the structural representation of solid-liquid separation dehydration desiccation integral machine of the present invention.
In figure: 1. back seat, 2. rotating shaft, 3. determines filter disc, 4. dynamic filter, 5. helical blade, 6. venthole, 7. charging aperture, 8. slag notch, 9. can, 10. delivery port, 11. vacuum ports, 12. front stalls, 13. air admission holes, 14. reductors, 15. bushing for feedings, 16. linings of slagging tap, 17. supports, 18. screw rods of slagging tap, 19. feed worms, 20. connecting rods, 21. inlet channels.
The specific embodiment
As shown in drawings, solid-liquid separation dehydration desiccation integral machine of the present invention, mainly comprises cylindrical shell and spiral propeller, and spiral propeller is arranged in cylindrical shell.Cylindrical shell is by can 9, front stall 12(barrel front end portion) and back seat 1(cylinder back-end portion) form, the two ends of can 9 are respectively arranged with front stall 12 and back seat 1, and can 9 is connected between front stall 12 and back seat 1.Spiral propeller is comprised of rotating shaft 2, helical blade 5, feed worm 19 and the screw rod 18 of slagging tap, feed worm 19 and the screw rod 18 of slagging tap are connected to the two ends of rotating shaft 2, feed worm 19 and the screw rod 18 of slagging tap are arranged on front stall 12 and back seat 1 by bearing respectively, between front stall 12 and feed worm 19, be provided with bushing for feeding 15, back seat 1 and slag tap and be provided with the lining 16 of slagging tap between screw rod 18.The endoporus of bushing for feeding 15 and the lining 16 of slagging tap is threaded hole, feed worm 19 meshes (feed worm 19 is equivalent to rotor and the stator in single-screw (single screw) pump with bushing for feeding 15) with the threaded hole in bushing for feeding 15, slag tap screw rod 18 and the threaded hole engagement of slagging tap in lining 16.The single head screw rod that a kind of structure of feed worm 19 and the screw rod 18 of slagging tap is circular cross-section, correspondingly the endoporus of bushing for feeding 15 and the lining 16 of slagging tap is twin-feed spiral hole.The twin-feed spiral bar that the another kind of structure of feed worm and the screw rod of slagging tap is elliptic cross-section, correspondingly the endoporus of bushing for feeding 15 and the lining 16 of slagging tap is three threaded hole.Feed worm 19 and the screw rod 18 of slagging tap be for metal material, and bushing for feeding 15 and the lining 16 of slagging tap are made for rubber.When feed worm 19 is when planet gyration is made at bushing for feeding 15 centers, both mesh formation annular seal space continuously, do at the uniform velocity axially-movable to these annular seal space constancies of volume, and material is delivered in cylindrical shell 1 by charging aperture 7.When the screw rod 18 of slagging tap lays out slag lining 16 centers and makes planet gyration, both mesh formation annular seal space continuously, do to these annular seal space constancies of volume at the uniform velocity axially-movable, material by being delivered to slag notch 8 in cylindrical shell 1.
In rotating shaft 2, be provided with helical blade 5, the direction of the pitch of helical blade 5 along front stall 12 to back seat 1 diminishes gradually.The inside of screw rod 2 is provided with inlet channel 21, is distributed with the venthole 6 being communicated with inlet channel on the outer wall of screw rod 2.Feed worm 19 stretches out front stall 12, and is connected with transmission mechanism, to drive together with screw rod 2, feed worm 19 and the screw rod 18 of slagging tap, rotates, and transmission mechanism can be reductor 14, can be also band transmission or chain transmission.The screw rod 18 of slagging tap stretches out back seat 1, and the inside of the screw rod 18 of slagging tap is provided with air admission hole 13, and air admission hole 13 is communicated with the inlet channel 21 of screw rod 2 inside.Also can in the inside of feed worm 19, be provided with air admission hole 13, the screw rod 18 that makes to slag tap is connected with transmission mechanism.The outer race of helical blade 5 is equipped with mutually stackedly determines filter disc 3 and dynamic filter 4, each is determined filter disc 3 and is connected on connecting rod 20, the two ends of connecting rod 20 are separately fixed on front stall 12 and back seat 1, determine to arrange between filter disc a dynamic filter for adjacent two, adjacent determine to form filter seam between filter disc and dynamic filter, determine the direction that the filter between filter disc and dynamic filter stitches along front stall 12 to back seat 1 and diminish gradually.The outside that is positioned at bushing for feeding 15 between feed worm 19 and front stall 12 is provided with a feed cavity, and the top that is positioned at this feed cavity on front stall 12 is provided with charging aperture 7.The outside that is positioned at the lining 16 of slagging tap between screw rod 18 and back seat 1 of slagging tap is provided with a tapping chamber, and the below that is positioned at this tapping chamber on back seat 1 is provided with slag notch 8.The bottom of can 9 is provided with delivery port 10, is also provided with vacuum port 11 on can 9.Front stall 12, back seat 1 and can 9 form a closed cylinder, and by bushing for feeding 15 and lining 16 sealings of slagging tap, can only outwards be bled by vacuum port 11, the helical blade 5 in rotating shaft 2 and helical blade 5 outsides mutual stacked determined filter disc 3 and dynamic filter 4 all in this closed barrel.
For the ease of by bleeding in 11 pairs of cylindrical shells of vacuum port, make it in vacuum state, at delivery port, 10 places are provided with water seal.Delivery port 10 and vacuum port 11 also can be one,, using delivery port 10 simultaneously as vacuum port, can not establish water seal like this.
For the ease of water outlet, in the bottom of back seat 1, be provided with support 17, in the bottom of front stall 12, a height is also set lower than the support of support 17, make can 9, front stall 12, back seat 1 and screw rod 2 all in the high heeling condition of 12 end of front stall back seat 1.
The course of work of above-mentioned solid-liquid separation dehydration desiccation integral machine is as described below:
Claims (6)
1. a solid-liquid separation dehydration desiccation integral machine, comprises cylindrical shell and spiral propeller, it is characterized in that: spiral propeller is arranged in cylindrical shell, spiral propeller is by rotating shaft, helical blade, feed worm and the screw rod of slagging tap form, feed worm and the screw rod of slagging tap are connected to the two ends of rotating shaft, feed worm is connected with transmission mechanism with one of the screw rod of slagging tap, the inside of another screw rod is provided with air admission hole, feed worm and the screw rod of slagging tap are arranged on respectively two ends of cylindrical shell, cylindrical shell both ends are equipped with threaded hole, feed worm and the screw rod of slagging tap mesh with the threaded hole at cylindrical shell both ends respectively, in rotating shaft, be provided with the inlet channel being communicated with air admission hole, on rotating shaft outer wall, be distributed with the venthole being communicated with inlet channel, helical blade is arranged in rotating shaft, the outer race of helical blade is equipped with mutually stackedly determines filter disc and dynamic filter, determining filter disc wears string together and is fixed on two ends of cylindrical shell, determine to arrange between filter disc a dynamic filter for adjacent two, the adjacent formation filter between filter disc and dynamic filter of determining is stitched, an end of cylindrical shell is provided with charging aperture, and the other end is provided with slag notch, cylindrical shell is provided with delivery port and vacuum port,
Spiral propeller drives rotation by transmission mechanism, feed worm and the screw rod of slagging tap are done gyration, water-containing materials is entered by charging aperture, the threaded hole of feed worm and its engagement meshes formation annular seal space continuously, do to these annular seal space constancies of volume at the uniform velocity axially-movable, material is delivered in cylindrical shell by charging aperture, in cylindrical shell, constantly by helical blade, is promoted forward; Temperature enters screw rod at the gas of 50 ℃-800 ℃ by air admission hole and inlet channel, and enter inner barrel by the venthole being distributed in rotating shaft, and fully stir and mix with material, break the water body being lockable in material, water in material is fully leached, and part water is by high-temperature gas heating evaporation; Determine filter disc and dynamic filter relatively moves, the water in material leaches from determine the filter seam between filter disc and dynamic filter simultaneously; By vacuum port, inner barrel is bled simultaneously, make inner barrel in vacuum negative pressure condition, reduce the boiling point of water in material, accelerate the evaporation of moisture in material, the water leaching is discharged by delivery port; The material of being determined after filter disc and dynamic filter dehydration and high temperature mummification forms filter residue, and the threaded hole of slag tap screw rod and its engagement meshes formation annular seal space continuously, does to these annular seal space constancies of volume at the uniform velocity axially-movable, and filter residue is discharged by being delivered to slag notch in cylindrical shell.
2. solid-liquid separation dehydration desiccation integral machine according to claim 1, is characterized in that: described cylindrical shell is comprised of can, front stall and back seat, and can is connected between front stall and back seat;
Feed worm and the screw rod of slagging tap are the single head screw rod of circular cross-section, and the endoporus of bushing for feeding and the lining of slagging tap is twin-feed spiral hole.
3. solid-liquid separation dehydration desiccation integral machine according to claim 1, is characterized in that: the pitch of described helical blade arranges charging aperture end to the direction that sets out the end of cinder notch along cylindrical shell diminishes gradually.
4. solid-liquid separation dehydration desiccation integral machine according to claim 1, is characterized in that: end to the direction that sets out the end of cinder notch that the described filter seam of determining between filter disc and dynamic filter arranges charging aperture along cylindrical shell diminishes gradually.
5. solid-liquid separation dehydration desiccation integral machine according to claim 1, is characterized in that: described feed worm and the screw rod of slagging tap are the single head screw rod of circular cross-section, and the threaded hole at cylindrical shell both ends is twin-feed spiral hole.
6. solid-liquid separation dehydration desiccation integral machine according to claim 1, is characterized in that: described feed worm and the screw rod of slagging tap are the twin-feed spiral bar of elliptic cross-section, and the threaded hole at cylindrical shell both ends is three threaded hole.
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| CN201310691500.XA CN103697679B (en) | 2013-12-17 | 2013-12-17 | Solid-liquid separation dehydration desiccation integral machine |
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| CN201310691500.XA CN103697679B (en) | 2013-12-17 | 2013-12-17 | Solid-liquid separation dehydration desiccation integral machine |
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| CN103697679B CN103697679B (en) | 2015-09-09 |
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| CN104107829A (en) * | 2014-06-23 | 2014-10-22 | 苏州美生环保科技有限公司 | Garbage processor |
| CN104107831A (en) * | 2014-06-23 | 2014-10-22 | 苏州美生环保科技有限公司 | Desk type garbage disposer |
| CN104107828A (en) * | 2014-06-23 | 2014-10-22 | 苏州美生环保科技有限公司 | High-efficiency garbage processor |
| CN104162534A (en) * | 2014-06-23 | 2014-11-26 | 苏州美生环保科技有限公司 | Solid-liquid separation garbage processor |
| CN104788136A (en) * | 2015-04-17 | 2015-07-22 | 安徽省蚌埠市中远肥业有限公司 | Urine humic acid reactor for active humic acid organic fertilizer production |
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| CN104107831A (en) * | 2014-06-23 | 2014-10-22 | 苏州美生环保科技有限公司 | Desk type garbage disposer |
| CN104107828A (en) * | 2014-06-23 | 2014-10-22 | 苏州美生环保科技有限公司 | High-efficiency garbage processor |
| CN104162534A (en) * | 2014-06-23 | 2014-11-26 | 苏州美生环保科技有限公司 | Solid-liquid separation garbage processor |
| CN104788136A (en) * | 2015-04-17 | 2015-07-22 | 安徽省蚌埠市中远肥业有限公司 | Urine humic acid reactor for active humic acid organic fertilizer production |
| CN104896890A (en) * | 2015-06-12 | 2015-09-09 | 山东省科学院新材料研究所 | Automatic water-removing disposal method of garbage |
| CN106390555A (en) * | 2016-10-11 | 2017-02-15 | 鹤壁职业技术学院 | Automatic screw-extrusion dewatering device |
| CN106390555B (en) * | 2016-10-11 | 2018-12-11 | 鹤壁职业技术学院 | A kind of screw extrusion automatic dewatering unit |
| CN110341229A (en) * | 2018-04-02 | 2019-10-18 | 中机华丰（北京）科技有限公司 | A kind of soft extrusion spiral equipment for separating liquid from solid |
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| CN117138985A (en) * | 2023-10-31 | 2023-12-01 | 南通新倍涛生物科技有限公司 | Solid-liquid separation device for food additive raw material treatment |
| CN117138985B (en) * | 2023-10-31 | 2023-12-29 | 南通新倍涛生物科技有限公司 | Solid-liquid separation device for food additive raw material treatment |
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