CN113402137A - Integrated device for secondary granulation and balling by using dewatered mud cakes - Google Patents
Integrated device for secondary granulation and balling by using dewatered mud cakes Download PDFInfo
- Publication number
- CN113402137A CN113402137A CN202110680633.1A CN202110680633A CN113402137A CN 113402137 A CN113402137 A CN 113402137A CN 202110680633 A CN202110680633 A CN 202110680633A CN 113402137 A CN113402137 A CN 113402137A
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- Prior art keywords
- balling
- granulation
- ball pressing
- integrated device
- ballast
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- 238000009818 secondary granulation Methods 0.000 title claims abstract description 22
- 238000003825 pressing Methods 0.000 claims abstract description 44
- 239000000463 material Substances 0.000 claims abstract description 25
- 238000003860 storage Methods 0.000 claims abstract description 15
- 238000005520 cutting process Methods 0.000 claims abstract description 14
- 238000005469 granulation Methods 0.000 claims description 21
- 230000003179 granulation Effects 0.000 claims description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 16
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 5
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 239000002689 soil Substances 0.000 abstract description 5
- 230000010354 integration Effects 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 8
- 238000004064 recycling Methods 0.000 description 5
- 239000010802 sludge Substances 0.000 description 5
- 238000011282 treatment Methods 0.000 description 4
- 239000012798 spherical particle Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000009817 primary granulation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/008—Sludge treatment by fixation or solidification
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/22—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by pressing in moulds or between rollers
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses an integrated device for secondary granulation and balling by utilizing dewatered mud cakes, which comprises a floor, a left supporting frame and a right supporting frame, wherein the left supporting frame and the right supporting frame are respectively fixed on the left side and the right side of the floor; a storage and transportation bin is fixedly arranged above the left supporting frame, a ballasting tank is fixedly arranged on the right supporting frame, and the ballasting tank is connected with the storage and transportation bin through a baffle; the right side of the right side support frame is provided with a ball pressing box, and materials ballasted by the ballast granulating box are conveyed into the ball pressing box through a bent scraper conveyor. The invention can realize the integrated integration of cutting, crushing, granulating and balling of the dewatered mud cake, has compact device layout and reasonable structure, solves the difficult problems of transportation and storage of the dewatered mud cake after being mixed with the admixture, and simultaneously, the obtained mud grains can be directly mixed with the plain soil to be used as backfill materials, thereby having good social benefit and economic benefit.
Description
Technical Field
The invention belongs to the technical field of sludge recycling treatment, relates to a sludge recycling treatment technology, and particularly relates to an integrated device for secondary granulation and balling by utilizing dewatered mud cakes.
Background
The construction and maintenance of port and waterway and the ecological dredging engineering of lake and river can generate a large amount of sludge, and the sludge generally has the characteristics of high water content (slurry state), high compressibility, low strength and the like, and is not suitable for direct utilization.
The main problems and drawbacks of the prior art include:
the existing feasible recycling treatment method is to add external agents such as flocculating agents, curing agents and the like into the sludge, combine mechanical filter pressing dehydration (such as plate and frame filter presses and stacked screw type dehydrators) to realize deep dehydration, directly utilize a granulator to extrude and granulate the generated mud cakes, and finally mix and backfill the mud particles and the plain soil. However, the ballast type granulator has a plurality of defects, which causes poor granulation and molding quality and low efficiency; on one hand, mud particles produced by the ballast type granulator have the poor characteristics of cavities, incompact corners, small specific area, poor flowability and the like; on the other hand, the cutter shearing method adopted in the prior art has large error, so that the granulation specifications are inconsistent, and finally, the backfill soil material formed by mixing the mud particles generated by granulation and the plain soil has poor engineering characteristics and low utilization rate.
Disclosure of Invention
Aiming at the problems and the defects in the prior art, the invention provides an integrated device for secondary granulation and balling by using dehydrated mud cakes, wherein the dehydrated mud cakes are firstly subjected to primary treatment by a ballast crushing device, the volume of the mud cakes is greatly reduced, and then the dehydrated mud cakes are further extruded and molded by a secondary granulation and balling device to form mud balls, so that the granulation effect and the stability of materials are further improved, the compaction degree and the specific surface area of the mud grains are also greatly improved, and the process of recycling the mud grains as a filling material by mixing with plain soil is facilitated.
Therefore, the invention adopts the following technical scheme:
an integrated device for secondary granulation and balling by using dewatered mud cakes comprises a floor, a left support frame and a right support frame, wherein the left support frame and the right support frame are respectively fixed on the left side and the right side of the floor; a storage and transportation bin is fixedly arranged above the left supporting frame, a ballasting tank is fixedly arranged on the right supporting frame, and the ballasting tank is connected with the storage and transportation bin through a baffle; a hydraulic pump working box is installed on the left side of the bottom of the ballast granulation box, the hydraulic pump working box is connected with a hydraulic mechanism through a transmission pipe, the hydraulic mechanism is fixedly connected with a loading steel plate through a telescopic hydraulic cylinder, the loading steel plate is located on the top of the ballast granulation box, a ballast granulation template is arranged on a bottom groove of the ballast granulation box, a moving chute is installed on the outer side of the ballast granulation template, and a cutting steel string is arranged on the moving chute; and a ball pressing box is arranged on the right side of the right support frame, and materials ballasted by the ballast granulating box are conveyed into the ball pressing box through a bent scraper conveyor.
Further, the bottom end of the bent scraper conveyor is fixedly connected with a first rotating motor, and the first rotating motor is fixed on the bottom plate; the top of the bent scraper conveyor is connected with a feed hopper at the top of the ball pressing box in an embedded manner; a pair of ball pressing rollers arranged side by side, namely a first ball pressing roller and a second ball pressing roller, are arranged in the ball pressing box; the right side of the first ball pressing roller is fixedly connected with a first gear, and the first gear is meshed with a second gear and then extends to be connected to a second rotating motor; and a discharge hole is formed in the bottom of the ball pressing box.
Preferably, the surfaces of the first ball pressing roller and the second ball pressing roller are both provided with ball grooves, and the front side and the rear side are provided with plugging plates for preventing material leakage; and the blocking plate is provided with a clearing scraper.
Preferably, the cleaning scraper is made of flexible alloy materials, and the cutting edge of the cleaning scraper is arranged from inside to outside and is bent downwards.
Preferably, the material of the inner wall of the ballast granulating tank is high-strength cast iron, and the wall thickness is 20mm-30 mm; the left side of the ballast granulation tank is connected with the storage and transportation bin through a baffle plate, and the baffle plate is adjusted to lift through a control valve.
Preferably, the ballast granulating template is provided with a plurality of circular truncated cone-shaped slotted holes with the inner end diameter larger than the outer end diameter, and the distance between the adjacent slotted holes is 9-12 mm.
Preferably, the cutting steel string adopts a special steel wire belonging to photovoltaic consumables, and the surface of the steel wire is plated with zinc and copper; the cutting steel string is fixed on the movable sliding groove and used for achieving back-and-forth cutting.
Preferably, the top of storing the transport bin is seted up first feed inlet, and the bottom is provided with drive track.
Preferably, the transmission crawler and the curved scraper conveyor both comprise at least two transmission rollers, one of the transmission rollers is driven by a motor, and the transmission rollers are coated with the transmission crawler.
Preferably, a feed inlet is formed in the bottom of the bent scraper conveyor, and inclined baffles are arranged on two sides of the feed inlet and used for preventing materials from being omitted; a plurality of gate valves are arranged on a conveying track of the bent scraper conveyor and used for preventing materials from slipping in the lifting and conveying process.
Compared with the prior art, the invention has the beneficial effects that:
(1) the device carries out granulation treatment on the dewatered mud cake to obtain smaller spherical particles, can be used for engineering occasions such as roadbed filling, earthwork backfilling and the like, provides a new way for efficient recycling of the mud, and has remarkable economic and social benefits.
(2) The invention has compact layout and convenient use, completes the granulation process of the dewatered mud cake through secondary granulation, greatly improves the balling rate and the output speed of materials, leads the balling of mud particles to be more compact and stable, and is not easy to be broken due to internal cavities.
(3) The invention controls the material conveying speed of the material in a track conveying mode, so that the material can be uniformly conveyed into the ballast granulating tank and the ball pressing tank, and the effect of effectively avoiding material clogging is achieved.
Drawings
FIG. 1 is a schematic view of the overall structure of an integrated device for secondary granulation and balling by using dewatered mud cakes, which is provided by the invention.
FIG. 2 is a top view of a medium-pressure ball box of the integrated device for secondary granulation and balling by using dewatered mud cakes.
Fig. 3 is an enlarged view of the area a in fig. 2.
Description of reference numerals: 1. a floor; 2. a left side support frame; 3. storing and transporting the bins; 4. a first feed port; 5. a drive track; 6. a hydraulic pump work box; 7. a first rotating electric machine; 8. a control valve; 9. a baffle plate; 10. a conveying pipe; 11. a hydraulic mechanism; 12. a telescopic hydraulic cylinder; 13. loading a steel plate; 14. ballasting a granulation tank; 15. ballasting the granulating template; 16. a moving chute; 17. cutting the steel string; 18. a right side support frame; 19. a curved flight conveyor; 20. a feed hopper; 21. a ball pressing box; 22. a plugging plate; 23. a first gear; 24. a second gear; 25. a second rotating electric machine; 26. a first ball pressing roller; 27. a second ball pressing roller; 28. removing the scraper; 29. and (4) a discharge port.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, which are provided for illustration only and are not to be construed as limiting the invention.
As shown in figure 1, the invention provides an integrated device for secondary granulation and balling by using dehydrated mud cakes, which comprises a floor 1, wherein a left support frame 2 is erected on the floor 1, the left support frame 2 fixedly bears a storage and transportation bin 3, the top of the storage and transportation bin 3 is provided with a first feeding hole 4, and the bottom of the storage and transportation bin 3 is provided with a transmission crawler 5 to realize uniform material conveying; a movable baffle 9 is arranged on the right side of the storage and transportation bin 3 and is connected with a ballast granulation tank 14, and the baffle 9 can be adjusted to lift by a control valve 8 to realize material conveying control; the ballasting tank 14 is made of high-strength cast iron with the wall thickness of 20mm-30mm, the hydraulic mechanism 11 is arranged at the top of the ballasting tank 14, the hydraulic pump working tank 6 fixed on the left support frame 2 is connected with the hydraulic mechanism 11 through the transmission pipe 10, the hydraulic mechanism 11 transmits pressure to the loading steel plate 13 through the telescopic hydraulic cylinder 12, the loading steel plate 13 extrudes materials to a circular table type slotted hole of the ballasting template 15 at the bottom, and the U-shaped cutting steel strings 17 arranged at two sides of the ballasting tank 14 can be cut back and forth through the movable sliding groove 16, so that the primary crushing process of the dewatered mud cake is completed.
Referring to fig. 1 and 2, a first rotating motor 7 is fixedly installed in the middle of a floor 1, the first rotating motor 7 drives a curved scraper conveyor 19 to complete secondary conveying of once-crushed and granulated mud particles, an inclined baffle is arranged at the bottom of the curved scraper conveyor 19 to assist feeding, a plurality of gate valves are arranged on scrapers of the curved scraper conveyor 19 to achieve ascending transportation, a discharge port is formed at the tail end of the curved scraper conveyor 19, and the once-crushed and granulated mud particles fall into a ball pressing box 21 through a feed hopper 20; the output shaft of the second rotating motor 25 is fixedly connected with a first gear 23, the left end of the first gear 23 is fixedly connected with a first ball pressing roller 26 extending into the ball pressing box 21, the rear side of the ball pressing box 21 is rotatably connected with a second gear 24 which is positioned at the rear side of the first gear 23 and is meshed with the first gear 23, and the left side of the second gear 24 is in transmission connection with a second ball pressing roller 27; the first ball pressing roller 26 and the second ball pressing roller 27 are provided with ball grooves on the surface layer, and the once crushed and granulated mud particles are further compacted and molded to form spherical particles under the extrusion action of the ball pressing rollers.
Referring to fig. 1, 2 and 3, the front side and the rear side of the first ball pressing roller 26 and the second ball pressing roller 27 are provided with the plugging plate 22 to prevent the material from directly leaking through the gap between the ball pressing rollers and the wall of the ball pressing box, the plugging plate 22 is provided with a cleaning scraper 28 which can scrape the outer surfaces of the first ball pressing roller 26 and the second ball pressing roller 27, the cleaning scraper 28 is made of an alloy material with high flexibility, the cutting edge of the scraper is arranged from inside to outside and is bent downwards to be close to the outer wall of the ball pressing roller, so that the scraped spherical particles are rounded and closed as far as possible, and the forming quality of the material is improved. The mud particles after the primary granulation and crushing are extruded into a ball groove to complete secondary granulation and ball forming, and are immediately scraped by a cleaning scraper 28 after rotating for half a week, and finally the material output is completed through a discharge hole 29 arranged at the bottom.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and scope of the present invention are intended to be covered thereby.
Claims (10)
1. The utility model provides an utilize integrated device of dehydration mud cake secondary granulation balling-up, includes floor (1), left side support frame (2) and right side support frame (18), its characterized in that: the left supporting frame (2) and the right supporting frame (18) are respectively fixed on the left side and the right side of the floor (1); a storage and transportation bin (3) is fixedly arranged above the left supporting frame (2), a ballasting tank (14) is fixedly arranged on the right supporting frame (18), and the ballasting tank (14) is connected with the storage and transportation bin (3) through a baffle (9); a hydraulic pump working tank (6) is installed on the left side of the bottom of the ballast granulation tank (14), the hydraulic pump working tank (6) is connected with a hydraulic mechanism (11) through a transmission pipe (10), the hydraulic mechanism (11) is fixedly connected with a loading steel plate (13) through a telescopic hydraulic cylinder (12), the loading steel plate (13) is located on the top of the ballast granulation tank (14), a ballast granulation template (15) is arranged at the bottom groove of the ballast granulation tank (14), a moving chute (16) is installed on the outer side of the ballast granulation template (15), and a cutting steel string (17) is arranged on the moving chute (16); the right side of the right side support frame (18) is provided with a ball pressing box (21), and materials ballasted by the ballast granulation box (14) are conveyed into the ball pressing box (21) through a bent scraper conveyor (19).
2. The integrated device for secondary granulation and balling by using the dewatered mud cakes as claimed in claim 1, is characterized in that: the bottom end of the bent scraper conveyor (19) is fixedly connected with a first rotating motor (7), and the first rotating motor (7) is fixed on the bottom plate (1); the top of the bent scraper conveyor (19) is connected with a feed hopper (20) at the top of the ball pressing box (21) in an embedded manner; a pair of ball pressing rollers arranged side by side, namely a first ball pressing roller (26) and a second ball pressing roller (27), are arranged in the ball pressing box (21); a first gear (23) is fixedly connected to the right side of the first ball pressing roller (26), and the first gear (23) is meshed with a second gear (24) and then extends to be connected to a second rotating motor (25); and a discharge hole (29) is formed in the bottom of the ball pressing box (21).
3. The integrated device for secondary granulation and balling by using the dewatered mud cakes as claimed in claim 2, is characterized in that: the surfaces of the first ball pressing roller (26) and the second ball pressing roller (27) are provided with ball grooves, and the front side and the rear side are provided with plugging plates (22) for preventing materials from leaking; the blocking plate (22) is provided with a clearing scraper (28).
4. The integrated device for secondary granulation and balling by using the dewatered mud cakes as claimed in claim 3, is characterized in that: the cleaning scraper (28) is made of flexible alloy materials, and the cutting edge of the cleaning scraper (28) is arranged from inside to outside and is bent downwards.
5. The integrated device for secondary granulation and balling by using the dewatered mud cakes as claimed in claim 1, is characterized in that: the inner wall of the ballast granulating tank (14) is made of high-strength cast iron, and the wall thickness is 20-30 mm; the left side of the ballast granulation tank (14) is connected with the storage and transportation bin (3) by adopting a baffle plate (9), and the baffle plate (9) is regulated to lift through a control valve (8).
6. The integrated device for secondary granulation and balling by using the dewatered mud cakes as claimed in claim 1, is characterized in that: the ballast granulating template (15) is provided with a plurality of circular truncated cone-shaped slotted holes with the inner end diameter larger than the outer end diameter, and the distance between the adjacent slotted holes is 9-12 mm.
7. The integrated device for secondary granulation and balling by using the dewatered mud cakes as claimed in claim 1, is characterized in that: the cutting steel string (17) adopts a special steel wire belonging to photovoltaic consumables, and the surface of the steel wire is plated with zinc and copper; the cutting steel string (17) is fixed on the movable sliding groove (16) and used for realizing back-and-forth cutting.
8. The integrated device for secondary granulation and balling by using the dewatered mud cakes as claimed in claim 1, is characterized in that: the top of the storage and transportation bin (3) is provided with a first feeding hole (4), and the bottom of the storage and transportation bin is provided with a transmission crawler belt (5).
9. The integrated device for secondary granulation and balling by using the dewatered mud cakes as claimed in claim 8, is characterized in that: the transmission crawler belt (5) and the bent scraper conveyor (19) at least comprise two transmission rollers, one of the transmission rollers is driven by a motor, and the transmission rollers are all coated with the transmission crawler belt.
10. The integrated device for secondary granulation and balling by using the dewatered mud cakes as claimed in any one of claims 1 to 9, is characterized in that: a feed inlet is formed in the bottom of the bent scraper conveyor (19), and inclined baffles are arranged on two sides of the feed inlet and used for preventing materials from being omitted; a plurality of gate valves are arranged on a conveying track of the bent scraper conveyor (19) and are used for preventing materials from slipping in the process of lifting and conveying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110680633.1A CN113402137A (en) | 2021-06-18 | 2021-06-18 | Integrated device for secondary granulation and balling by using dewatered mud cakes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110680633.1A CN113402137A (en) | 2021-06-18 | 2021-06-18 | Integrated device for secondary granulation and balling by using dewatered mud cakes |
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| Publication Number | Publication Date |
|---|---|
| CN113402137A true CN113402137A (en) | 2021-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110680633.1A Pending CN113402137A (en) | 2021-06-18 | 2021-06-18 | Integrated device for secondary granulation and balling by using dewatered mud cakes |
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| Country | Link |
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| CN (1) | CN113402137A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114984854A (en) * | 2022-06-20 | 2022-09-02 | 武汉大学 | Extrusion granulation device of filter-pressing mud cake |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002137944A (en) * | 2000-10-26 | 2002-05-14 | Kobe Steel Ltd | Facility for treating byproduct of quarrying |
| CN206064354U (en) * | 2016-06-20 | 2017-04-05 | 山西农业大学 | A kind of new-type fertilizer prilling granulator |
| CN206262497U (en) * | 2016-12-07 | 2017-06-20 | 惠安宏诚机械有限公司 | A kind of flat-die type powdered granulator |
| CN210544991U (en) * | 2019-08-28 | 2020-05-19 | 云南天冶化工有限公司 | Carbide slag balling-up device |
| CN212356968U (en) * | 2020-03-12 | 2021-01-15 | 华中科技大学 | Integrated silt slurry treatment system |
-
2021
- 2021-06-18 CN CN202110680633.1A patent/CN113402137A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002137944A (en) * | 2000-10-26 | 2002-05-14 | Kobe Steel Ltd | Facility for treating byproduct of quarrying |
| CN206064354U (en) * | 2016-06-20 | 2017-04-05 | 山西农业大学 | A kind of new-type fertilizer prilling granulator |
| CN206262497U (en) * | 2016-12-07 | 2017-06-20 | 惠安宏诚机械有限公司 | A kind of flat-die type powdered granulator |
| CN210544991U (en) * | 2019-08-28 | 2020-05-19 | 云南天冶化工有限公司 | Carbide slag balling-up device |
| CN212356968U (en) * | 2020-03-12 | 2021-01-15 | 华中科技大学 | Integrated silt slurry treatment system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114984854A (en) * | 2022-06-20 | 2022-09-02 | 武汉大学 | Extrusion granulation device of filter-pressing mud cake |
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Application publication date: 20210917 |