CN114712907B - Centrifugal solid-liquid continuous separator - Google Patents
Centrifugal solid-liquid continuous separator Download PDFInfo
- Publication number
- CN114712907B CN114712907B CN202210290486.1A CN202210290486A CN114712907B CN 114712907 B CN114712907 B CN 114712907B CN 202210290486 A CN202210290486 A CN 202210290486A CN 114712907 B CN114712907 B CN 114712907B
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- cylinder
- hopper
- solid
- outlet pipe
- rotating shaft
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- 239000007788 liquid Substances 0.000 title claims abstract description 68
- 239000002893 slag Substances 0.000 claims abstract description 60
- 239000007787 solid Substances 0.000 claims abstract description 31
- 239000002351 wastewater Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract description 15
- 238000007599 discharging Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Centrifugal Separators (AREA)
Abstract
The invention provides a centrifugal solid-liquid continuous separator which comprises a hopper, a slag dragging device, a cylinder and a rotating shaft, wherein the cylinder is arranged in the hopper; the top of the cylinder is provided with a liquid outlet pipe, the bottom of the cylinder is provided with a solid outlet pipe and a feeding pipe respectively, and the feeding hole of the feeding pipe is higher than the discharging hole of the solid outlet pipe; the axis of drum is vertical to be set up, and pivot and the coaxial setting of drum, pivot rotatable installation are inside the drum, and a plurality of baffles are installed to pivot circumference, and the one end circumference that the pivot is close to the liquid outlet pipe is installed a plurality of inclined impellers, and a plurality of guide plates are radially installed to the drum inner wall, and the guide plate is the slope form for the axial of pivot. Compared with the existing filter screen, the centrifugal solid-liquid continuous separator has the advantages that the problem of blockage is avoided, and the solid-liquid separation efficiency is higher.
Description
Technical Field
The invention relates to the technical field of centrifuges, in particular to a centrifugal solid-liquid continuous separator.
Background
With the recent increasing environmental protection demands of the state, devices such as tail gas washing towers, waste water neutralization tanks and the like are added in many chemical plants, and harmful substances are removed, but the solid-containing liquid cannot be reused and meets the discharge requirements, so that solid-liquid separation treatment is required by specific equipment.
The centrifugal solid-liquid separator is widely applied to solid-liquid separation treatment, the existing centrifugal machine generally filters and separates liquid and solid mixture through a filter screen, the liquid is discharged as clear liquid through the filter screen, and the solid is collected as filter residues through a piston or a scraper, so that continuous solid-liquid separation is realized. However, in the practical application process, the filter screen is easy to block, and needs to be cleaned regularly, so that the solid-liquid separation efficiency is affected.
Disclosure of Invention
In view of the above, the invention provides a centrifugal solid-liquid continuous separator which does not need a filter screen for filtration and can realize continuous solid-liquid separation.
The technical scheme of the invention is realized as follows: the invention provides a centrifugal solid-liquid continuous separator which comprises a hopper, a slag dragging device, a cylinder and a rotating shaft, wherein the hopper is arranged on a platform; the top of the cylinder is provided with a liquid outlet pipe, the bottom of the cylinder is provided with a solid outlet pipe and a feeding pipe respectively, and the feeding hole of the feeding pipe is higher than the discharging hole of the solid outlet pipe; the axis of drum is vertical to be set up, pivot and the coaxial setting of drum, the pivot rotatable is installed inside the drum, a plurality of baffles are installed to pivot circumference, the impeller of a plurality of slopes is installed to the one end circumference that the pivot is close to the liquid outlet pipe, a plurality of guide plates are radially installed to the drum inner wall, the guide plate is the slope form for the axial of pivot.
On the basis of the technical scheme, preferably, the flow guide plates and the axis of the cylinder are 30-60 degrees, and the flow guide plates are uniformly arranged at intervals.
On the basis of the technical scheme, preferably, the inclination angle of the impeller is 30-60 degrees.
On the basis of the technical scheme, preferably, the plane of the baffle is parallel to the axis of the cylinder, and the baffles are uniformly arranged at intervals.
On the basis of the technical scheme, preferably, an impeller sleeve is arranged at one end, close to the liquid outlet pipe, inside the cylinder, the rotating shaft penetrates through the impeller sleeve, and the impeller is positioned inside the impeller sleeve; the cavity between the rotating shaft and the impeller sleeve is a first channel, and the first channel is communicated with the liquid outlet pipe.
On the basis of the technical scheme, preferably, shaft sleeves are fixedly arranged at two ends of the cylinder respectively, and the rotating shafts penetrate through the shaft sleeves at two ends of the cylinder and are sealed with the shaft sleeves in a rotating mode.
On the basis of the technical scheme, preferably, a cavity between the rotating shaft and the shaft sleeve at the top of the cylinder is a second channel, and the liquid outlet pipe is arranged on the surface of the shaft sleeve at the top of the cylinder and is communicated with the second channel.
On the basis of the technical scheme, preferably, a cavity between the rotating shaft and the shaft sleeve at the bottom of the cylinder is a third channel, and the feeding pipe is arranged on the surface of the shaft sleeve at the bottom of the cylinder and is communicated with the third channel.
On the basis of the technical scheme, the device preferably further comprises a driving device for driving the rotating shaft to rotate, the driving device is arranged outside the hopper, and the output end of the driving device is coaxially connected with one end, close to the liquid outlet pipe, of the rotating shaft.
On the basis of the technical scheme, the slag dragging device preferably further comprises a supporting seat, wherein the slag dragging device comprises a slag dragging conveying belt and a slag dragging driving device, the slag dragging conveying belt is arranged inside the hopper and is positioned below the solid outlet pipe, and the length of the slag dragging conveying belt is larger than that of the hopper; one end of the supporting seat is connected with a platform at the bottom of the hopper, and the other end of the supporting seat is connected with one end, far away from the solid outlet pipe, of the slag dragging conveyor belt; one end of the slag dragging conveyor belt is provided with a slag outlet and is positioned outside the hopper; the slag dragging conveyor belt is connected with the slag dragging driving device and driven by the slag dragging driving device to drag out solids in the hopper to a slag outlet.
Compared with the prior art, the centrifugal solid-liquid continuous separator has the following beneficial effects:
According to the invention, the baffle is driven by the rotating shaft to rotate so as to enable the material to radially move, and centrifugal force is generated to perform solid-liquid separation; the materials entering the range of the guide plate are guided by the centrifugal force extrusion and the guide plate, so that downward axial flow is generated, and the materials are discharged from the solid outlet pipe; simultaneously, the rotating impeller enables the materials to move upwards axially, and enables clear liquid to be discharged from the liquid outlet pipe, so that the effect of solid-liquid separation is achieved. Compared with the existing filter screen for filtering and separating, the method has the advantages that the problem of blockage is avoided, and the solid-liquid separation efficiency is higher.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a centrifugal solid-liquid continuous separator of the present invention;
FIG. 2 is a view showing the internal structure of a cylinder of the centrifugal solid-liquid continuous separator according to the present invention;
FIG. 3 is a view showing a structure of a rotary shaft of the centrifugal solid-liquid continuous separator according to the present invention;
FIG. 4 is an enlarged view of portion A of FIG. 1;
Fig. 5 is an enlarged view of a portion B in fig. 1.
1-Hopper, 2-slag dragging device, 3-cylinder, 4-rotating shaft, 30-liquid outlet pipe, 31-solid outlet pipe, 32-feeding pipe, 40-baffle, 41-impeller, 33-deflector, 34-impeller sleeve, 42-first channel, 35-shaft sleeve, 43-second channel, 44-third channel, 5-driving device, 21-slag dragging conveying device, 22-slag dragging driving device, 23-slag outlet, 24-shovel plate and 6-supporting seat.
Detailed Description
The following description of the embodiments of the present invention will clearly and fully describe the technical aspects of the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention.
As shown in fig. 1, in combination with fig. 2 to 5, the centrifugal solid-liquid continuous separator of the present invention comprises a hopper 1, a slag scooping device 2, a cylinder 3 and a rotating shaft 4.
The device comprises a hopper 1, a slag dragging device 2 and a supporting seat 6, wherein the hopper 1 is arranged on a platform, the hopper 1 is in an inverted trapezoid shape, solid-liquid mixed wastewater is contained in the hopper 1, the slag dragging device 2 is arranged in the hopper 1 and used for dragging settled solids out, the slag dragging device comprises a slag dragging conveying belt 21, a slag dragging driving device 22 and the supporting seat 6, the slag dragging conveying belt 21 is arranged in the hopper 1 and is positioned below a solid outlet pipe 31, and the length of the slag dragging conveying belt 21 is larger than that of the hopper 1; one end of the supporting seat 6 is connected with a platform at the bottom of the hopper 1, and the other end is connected with one end, far away from the solid outlet pipe 31, of the slag dragging conveyer belt 21; one end of the slag dragging conveyor belt 21 is provided with a slag outlet 23, and is positioned outside the hopper 1; the slag dragging conveyer belt 21 is provided with an inclined shovel plate 24, the slag dragging conveyer belt 21 is connected with a slag dragging driving device 22, the slag dragging driving device 22 drives the slag dragging conveyer belt 21 to rotate, and solids in the hopper 1 are dragged out to a slag outlet 23 through the shovel plate 24.
In a specific embodiment, the included angle between the slag dragging conveyor belt 21 and the horizontal surface is 60 degrees, solids are transported upwards in the slag dragging process, and leached filtrate flows downwards into the hopper 1 along the slag dragging conveyor belt 21, so that solid-liquid separation is more thorough.
The cylinder 3 is arranged in the hopper 1, the top of the cylinder 3 is provided with a liquid outlet pipe 30, the bottom of the cylinder 3 is respectively provided with a solid outlet pipe 31 and a feeding pipe 32, and the feeding hole of the feeding pipe 32 is higher than the discharging hole of the solid outlet pipe 31; the axis of the cylinder 3 is vertically arranged, the rotating shaft 4 is coaxially arranged with the cylinder 3, and the rotating shaft 4 is rotatably arranged in the cylinder 3; a plurality of baffles 40 are circumferentially arranged on the rotating shaft 4, a plurality of inclined impellers 41 are circumferentially arranged on one end, close to the liquid outlet pipe 30, of the rotating shaft 4, a plurality of guide plates 33 are radially arranged on the inner wall of the cylinder 3, and the guide plates 33 are inclined relative to the axial direction of the rotating shaft 4.
The feeding pipe 32 is communicated with the solid-liquid mixed sewage bin, the rotating shaft 4 rotates to drive the baffle 40 to rotate rapidly, suction force is formed, and the material is driven to enter the cylinder 3 through the feeding pipe 32; simultaneously, the materials in the cylinder 3 rotate at a high speed to generate centrifugal force, and heavier solid particles are gradually settled to the range of the guide plate 33 of the cylinder 3 by the centrifugal force in the ascending process.
The solid and the liquid which enter the range of the guide plate 33 bear the centrifugal force of the liquid and generate certain static pressure, the solid is reversely extruded by the guide plate 33 and flows downwards to drive the solid materials to be discharged from the solid outlet pipe 31 and to the slag extractor hopper 1 for concentration and sedimentation, and the slag extractor driving device 22 drives the slag extractor conveyor belt 21 to extract the concentrated solid to the slag outlet 23, so that the solid-liquid separation is realized.
The impeller 41 is driven by the rotating shaft 4 to rotate, so that the material in the cylinder 3 moves upwards axially, solid particles are gradually separated to the periphery, the solid content in the liquid is reduced, and the supernatant is discharged from the liquid outlet pipe 30.
In a specific embodiment, the number and angle of the baffles 40 can be set according to the centrifugal force, in this embodiment, 4 baffles 40 are arranged, the plane of the baffles 40 is parallel to the axis of the cylinder 3, and the baffles 40 are uniformly spaced.
In the specific embodiment, the number and the inclination angle of the impellers 41 are determined according to the required centrifugal force, and in the embodiment, the number of the impellers 41 is 4, and the inclination angle is 30-60 degrees.
In a specific embodiment, the number of the guide plates 33 may be set according to the size of the cylinder 3, in this embodiment, 6 guide plates 33 are provided, the guide plates 33 form 30-60 ° with the axis of the cylinder 3, and the guide plates 33 are uniformly spaced.
In a specific embodiment, an impeller sleeve 34 is welded at one end, close to the liquid outlet pipe 30, inside the cylinder 3, the rotating shaft 4 penetrates through the impeller sleeve 34, and the impeller 41 is located inside the impeller sleeve 34; the cavity between the shaft 4 and the impeller sleeve 34 is a first channel 42, the first channel 42 being in communication with the liquid outlet tube 30. The liquid after solid-liquid separation enters the impeller sleeve 34, then moves axially upwards under the rotation of the impeller 41, and finally exits the hopper 1 through the first channel 42 and the liquid outlet pipe 30.
In a specific embodiment, shaft sleeves 35 are respectively and fixedly arranged at the centers of two ends of the cylinder 3, and the rotating shafts 4 penetrate through the shaft sleeves 35 at the two ends of the cylinder 3 and are in rotary sealing with the shaft sleeves 35.
In a specific embodiment, the cavity between the rotating shaft 4 and the shaft sleeve 35 at the top of the cylinder 3 is a second channel 43, and the liquid outlet pipe 30 is installed on the surface of the shaft sleeve 35 at the top of the cylinder 3 and is communicated with the second channel 43. The shaft 4, the impeller sleeve 34 and the sleeve 35 are all coaxially arranged to facilitate the linear movement of the liquid axially along the first and second channels 42, 43.
In a specific embodiment, the cavity between the rotating shaft 4 and the shaft sleeve 35 at the bottom of the cylinder 3 is a third channel 44, and the feeding pipe 32 is installed on the surface of the shaft sleeve 35 at the bottom of the cylinder 3 and is communicated with the third channel 44. After entering the cylinder 3 through the third channel 44 in the center of the cylinder 3, the material is more easily acted by centrifugal force and is dispersed into the cylinder 3, so that a better solid-liquid separation effect is achieved.
In a specific embodiment, the device further comprises a driving device 5 for driving the rotating shaft 4 to rotate, the driving device 5 is arranged outside the hopper, and the output end of the driving device 5 is coaxially connected with one end, close to the liquid outlet pipe 30, of the rotating shaft 4. Preferably, the driving device 5 is a rotating motor with a rotating speed of 1000-3000r/min.
According to the invention, the slag is fished by using the slag scooping conveyor belt 21, and the slag outlet 23 is positioned outside the hopper 1, so that the concentrated and settled solids can be fished out, the solid-liquid separation is realized, the continuous separation can be realized, the stop and the scooping are not needed, and the working efficiency is greatly improved.
According to the sewage amount to be treated, a plurality of centrifugal devices can be arranged in the hopper 1.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (3)
1. The centrifugal solid-liquid continuous separator comprises a hopper (1), a slag scooping device (2), a cylinder (3) and a rotating shaft (4), wherein the hopper (1) is arranged on a platform, the cylinder (3) is arranged inside the hopper (1), and the slag scooping device (2) is arranged inside the hopper (1) and is positioned at the bottom of the cylinder (3); the top of the cylinder (3) is provided with a liquid outlet pipe (30), the bottom of the cylinder (3) is provided with a solid outlet pipe (31) and a feed pipe (32) respectively, and the feed inlet of the feed pipe (32) is higher than the discharge outlet of the solid outlet pipe (31); the axis of drum (3) is vertical to be set up, pivot (4) and drum (3) coaxial setting, pivot (4) rotatable mounting is inside drum (3), its characterized in that: a plurality of baffles (40) are circumferentially arranged on the rotating shaft (4), the plane of each baffle (40) is parallel to the axis of the cylinder (3), and the baffles (40) are uniformly arranged at intervals;
One end of the rotating shaft (4) close to the liquid outlet pipe (30) is circumferentially provided with a plurality of inclined impellers (41), and the inclination angle of the impellers (41) is 30-60 degrees; a plurality of guide plates (33) are radially arranged on the inner wall of the cylinder (3), and the guide plates (33) are inclined relative to the axial direction of the rotating shaft (4);
An impeller sleeve (34) is arranged at one end, close to the liquid outlet pipe (30), inside the cylinder (3), the rotating shaft (4) penetrates through the impeller sleeve (34), and the impeller (41) is positioned inside the impeller sleeve (34); the cavity between the rotating shaft (4) and the impeller sleeve (34) is a first channel (42), and the first channel (42) is communicated with the liquid outlet pipe (30);
Shaft sleeves (35) are respectively and fixedly arranged at two ends of the cylinder (3), and the rotating shafts (4) penetrate through the shaft sleeves (35) at two ends of the cylinder (3) and are sealed with the shaft sleeves (35) in a rotating way;
The cavity between the rotating shaft (4) and the shaft sleeve (35) at the top of the cylinder (3) is a second channel (43), and the liquid outlet pipe (30) is arranged on the surface of the shaft sleeve (35) at the top of the cylinder (3) and is communicated with the second channel (43);
the cavity between the rotating shaft (4) and the shaft sleeve (35) at the bottom of the cylinder (3) is a third channel (44), and the feeding pipe (32) is arranged on the surface of the shaft sleeve (35) at the bottom of the cylinder (3) and is communicated with the third channel (44); the other end of the feed pipe (32) is communicated with solid-liquid mixed wastewater in the hopper (1);
The centrifugal solid-liquid continuous separator also comprises a supporting seat (6), the slag dragging device (2) comprises a slag dragging conveying belt (21) and a slag dragging driving device (22), the slag dragging conveying belt (21) is arranged inside the hopper (1) and is positioned below the solid outlet pipe (31), and the length of the slag dragging conveying belt (21) is greater than that of the hopper (1); one end of the supporting seat (6) is connected with a platform at the bottom of the hopper (1), and the other end of the supporting seat is connected with one end, far away from the solid outlet pipe (31), of the slag dragging conveyor belt (21); one end of the slag dragging conveyor belt (21) is provided with a slag outlet (23) and is positioned outside the hopper (1); the slag dragging conveyor belt (21) is connected with the slag dragging driving device (22) and driven by the slag dragging driving device (22) to drag out solids in the hopper (1) to the slag outlet (23).
2. A centrifugal solid-liquid continuous separator according to claim 1, wherein: the guide plates (33) are 30-60 degrees away from the axis of the cylinder (3), and the guide plates (33) are uniformly arranged at intervals.
3. A centrifugal solid-liquid continuous separator according to claim 1, wherein: the device further comprises a driving device (5) for driving the rotating shaft (4) to rotate, the driving device (5) is arranged outside the hopper, and the output end of the driving device (5) is coaxially connected with one end, close to the liquid outlet pipe (30), of the rotating shaft (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210290486.1A CN114712907B (en) | 2022-03-23 | 2022-03-23 | Centrifugal solid-liquid continuous separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210290486.1A CN114712907B (en) | 2022-03-23 | 2022-03-23 | Centrifugal solid-liquid continuous separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114712907A CN114712907A (en) | 2022-07-08 |
| CN114712907B true CN114712907B (en) | 2024-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210290486.1A Active CN114712907B (en) | 2022-03-23 | 2022-03-23 | Centrifugal solid-liquid continuous separator |
Country Status (1)
| Country | Link |
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| CN (1) | CN114712907B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003311178A (en) * | 2002-04-19 | 2003-11-05 | Toa Harbor Works Co Ltd | Solid-liquid separation method and device in classification of earth and sand |
| CN103028497A (en) * | 2012-12-28 | 2013-04-10 | 刘晔 | Centrifugal classifier |
| CN205307891U (en) * | 2015-12-24 | 2016-06-15 | 郑州天海给水设备有限公司 | Building site waste water treatment equipment |
| CN206454320U (en) * | 2017-02-09 | 2017-09-01 | 青岛新世纪环境工程有限公司 | The efficient clarifying reaction device of fine suspension in a kind of processing sewage |
| CN207187964U (en) * | 2017-03-28 | 2018-04-06 | 石河子大学 | A kind of hydrocyclone with rotary blade |
| CN208642985U (en) * | 2018-07-31 | 2019-03-26 | 王政 | A kind of centrifugal separator for solid from liquid |
| CN111001200A (en) * | 2019-11-15 | 2020-04-14 | 邳州高新区城市矿产研究院有限公司 | A subside device for useless glaze recycle |
| CN112604326A (en) * | 2020-11-24 | 2021-04-06 | 遵义师范学院 | Desilting separation device for sewage pretreatment and using method thereof |
| CN112723392A (en) * | 2020-12-02 | 2021-04-30 | 江苏昌吉利新能源科技有限公司 | Anhydrous lithium chloride continuous crystallization method |
-
2022
- 2022-03-23 CN CN202210290486.1A patent/CN114712907B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003311178A (en) * | 2002-04-19 | 2003-11-05 | Toa Harbor Works Co Ltd | Solid-liquid separation method and device in classification of earth and sand |
| CN103028497A (en) * | 2012-12-28 | 2013-04-10 | 刘晔 | Centrifugal classifier |
| CN205307891U (en) * | 2015-12-24 | 2016-06-15 | 郑州天海给水设备有限公司 | Building site waste water treatment equipment |
| CN206454320U (en) * | 2017-02-09 | 2017-09-01 | 青岛新世纪环境工程有限公司 | The efficient clarifying reaction device of fine suspension in a kind of processing sewage |
| CN207187964U (en) * | 2017-03-28 | 2018-04-06 | 石河子大学 | A kind of hydrocyclone with rotary blade |
| CN208642985U (en) * | 2018-07-31 | 2019-03-26 | 王政 | A kind of centrifugal separator for solid from liquid |
| CN111001200A (en) * | 2019-11-15 | 2020-04-14 | 邳州高新区城市矿产研究院有限公司 | A subside device for useless glaze recycle |
| CN112604326A (en) * | 2020-11-24 | 2021-04-06 | 遵义师范学院 | Desilting separation device for sewage pretreatment and using method thereof |
| CN112723392A (en) * | 2020-12-02 | 2021-04-30 | 江苏昌吉利新能源科技有限公司 | Anhydrous lithium chloride continuous crystallization method |
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| Publication number | Publication date |
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| CN114712907A (en) | 2022-07-08 |
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