CN112704962A - Tail gas cyclic utilization device in calcium carbonate processing - Google Patents
Tail gas cyclic utilization device in calcium carbonate processing Download PDFInfo
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- CN112704962A CN112704962A CN202011442936.1A CN202011442936A CN112704962A CN 112704962 A CN112704962 A CN 112704962A CN 202011442936 A CN202011442936 A CN 202011442936A CN 112704962 A CN112704962 A CN 112704962A
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- Prior art keywords
- calcium carbonate
- rotary
- tail gas
- main body
- sealing
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- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 title claims abstract description 274
- 229910000019 calcium carbonate Inorganic materials 0.000 title claims abstract description 137
- 125000004122 cyclic group Chemical group 0.000 title claims description 4
- 238000012216 screening Methods 0.000 claims abstract description 95
- 238000007789 sealing Methods 0.000 claims abstract description 56
- 238000011084 recovery Methods 0.000 claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 28
- 239000000428 dust Substances 0.000 claims abstract description 22
- 238000004064 recycling Methods 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims description 54
- 239000002912 waste gas Substances 0.000 claims description 32
- 239000008187 granular material Substances 0.000 claims description 24
- 239000002245 particle Substances 0.000 claims description 22
- 238000005096 rolling process Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 238000007873 sieving Methods 0.000 description 5
- 235000019738 Limestone Nutrition 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/14—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by rotating vanes, discs, drums or brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/18—Cleaning-out devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
- C01F11/185—After-treatment, e.g. grinding, purification, conversion of crystal morphology
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
- B04C2003/003—Shapes or dimensions of vortex chambers
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a tail gas recycling device in calcium carbonate processing, which comprises a shell, a rotary screening part, a power part, a sealing connection part and a calcium carbonate dust recovery part. Wherein, the shell is a closed cylindrical structure, and the shell is obliquely arranged. The rotation screening portion is arranged in the shell, the rotation axis of the rotation screening portion is obliquely arranged, and the tail gas generated in the calcium carbonate processing process is input from the top and output from the bottom of the rotation screening portion. The sealing connection parts are arranged at the upper end and the lower end of the rotary screening part and used for enabling the rotary screening part to be connected with the exhaust pipeline in a sealing mode. The calcium carbonate dust recovery part is communicated with a tail gas output pipe at the bottom of the rotary screening part. The tail gas recycling device in calcium carbonate processing disclosed by the invention has the function of recycling calcium carbonate powder in tail gas generated after calcium carbonate processing, so that waste of calcium carbonate caused by pollution of the tail gas generated in calcium carbonate production to the external environment is avoided.
Description
Technical Field
The invention relates to the field of calcium carbonate processing and production, in particular to a tail gas recycling device in calcium carbonate processing.
Background
The calcium carbonate industry uses limestone as a main raw material, and after the processes of mechanical crushing and grinding, the limestone forms dry powder or wet powder and the like, products meeting different particle size requirements are formed by classification, and the calcium carbonate industry is suitable for various fields of papermaking, plastics, rubber, printing ink, chemical building materials, sealing materials, daily chemicals, food, medicines and the like. However, a large amount of waste gas is generated in the calcium carbonate processing process, the waste gas contains a large amount of calcium carbonate powder, if the waste gas is directly discharged into the atmosphere, the environment is seriously polluted, and the calcium carbonate powder contained in the waste gas is directly wasted. Therefore, calcium carbonate powder in the waste gas needs to be recycled, so that the cost is reduced, and the calcium carbonate powder can be prevented from polluting the environment. However, in the prior art, no device capable of well collecting calcium carbonate powder in calcium carbonate processing waste gas exists.
Disclosure of Invention
In order to overcome the defect that calcium carbonate powder in tail gas in calcium carbonate processing in the prior art cannot be recycled, the invention aims to provide a tail gas recycling device in calcium carbonate processing, which has the function of recycling the calcium carbonate powder in the tail gas generated after calcium carbonate processing, so that waste of calcium carbonate caused by pollution of the tail gas generated by calcium carbonate production to the external environment is avoided.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a tail gas recycling device in calcium carbonate processing, which comprises:
the shell is of a closed cylindrical structure and is obliquely arranged;
the rotary screening part is arranged in the shell, the rotary axis of the rotary screening part is arranged in an inclined manner, the calcium carbonate processing tail gas is input from the top and output from the bottom of the rotary screening part, and the rotary screening part is used for screening calcium carbonate dust with different granularity in the waste gas;
the power part is used for providing power required by the rotation of the rotary screening part;
the sealing connection parts are arranged at the upper end and the lower end of the rotary screening part and are used for enabling the rotary screening part to be connected with the exhaust pipeline in a sealing mode;
and the calcium carbonate dust recovery part is communicated with the tail gas output pipe at the bottom of the rotary screening part and is used for recovering the calcium carbonate dust in the waste gas.
Preferably, the bottom of the outer shell is provided with a fine calcium carbonate particle output pipe, and the output pipe is further provided with an air extractor, and the air extractor is used for enabling fine calcium carbonate particles in the rotary screening part to better pass through the screening of the rotary screening part.
Preferably, the rotary screening portion comprises:
the tail gas input pipe is used for inputting tail gas of calcium carbonate processing into the rotary screening part, and one end of the tail gas input pipe is connected with the sealing connection part;
the rotary screen main body is rotatably arranged in the shell, the upper end of the rotary screen main body is communicated with the other end of the tail gas input pipe, a mesh screen structure is arranged on the side face of the rotary screen main body, the mesh screen structure is used for screening calcium carbonate particles in waste gas, and the rotary screen main body is in a rotating state during screening;
and the coarse calcium carbonate particle output pipe is used for discharging calcium carbonate particles which cannot pass through a mesh screen structure on the rotary screen main body into the rotary screen main body.
Preferably, the rotary sifting portion further comprises a rolling connection device disposed between the rotary sifter body and the housing for limiting the position of the rotary sifter body while reducing friction between the rotary sifter body and the housing.
Preferably, the rolling connection means comprises:
the cross section of the wedge-shaped ring is crescent, and the wedge-shaped ring is fixed on the upper end surface and the lower end surface of the rotating screen main body;
a groove disposed on the housing proximate the wedge ring;
and the steel ball is movably arranged in the groove and is in running fit with the surface of the wedge-shaped ring.
Preferably, the power part includes:
a gear tooth structure disposed at a bottom of the rotary sifting portion;
and the output end of the power motor is matched with the gear tooth structure in a gear meshing manner.
Preferably, the sealing connection portion includes:
one end of the sealing main body is connected with the fixed pipeline, a sealing gasket for sealing is arranged at the connecting position of the sealing main body and the fixed pipeline, and the other end of the sealing main body is communicated with the rotary screening part;
the bearing device is arranged at the joint and matching part of the sealing main body and the rotary screening part and is used for preventing the rotary screening part from being blocked by the sealing main body when rotating;
and the mechanical sealing device is arranged at the joint and matching part of the sealing main body and the rotary screening part and is used for sealing and connecting the sealing main body and the rotary screening part.
Preferably, the calcium carbonate dust recovery section includes:
the tail gas output pipe is inserted into the recovery liquid in the recovery tank, the top of the recovery tank is provided with a waste gas outlet, the bottom of the recovery tank is funnel-shaped, and the bottom of the recovery tank is provided with a calcium carbonate powder discharge pipe;
and the electromagnetic valve is arranged on the calcium carbonate discharge pipe and used for controlling the opening and closing of the calcium carbonate discharge pipe.
The invention has the beneficial effects that:
the invention provides a tail gas recycling device in calcium carbonate processing. Wherein, the shell is a closed cylindrical structure, and the shell is obliquely arranged. Rotation screening portion sets up in the inside of shell, rotates screening portion rotation axis slope setting, and calcium carbonate processing tail gas is by the top input of rotation screening portion, and the bottom output rotates screening portion and is arranged in sieving the calcium carbonate dust of granularity difference in the waste gas. The power part is used for providing power required by the rotation of the rotary sieving part. The sealing connection parts are arranged at the upper end and the lower end of the rotary screening part and used for enabling the rotary screening part to be connected with the exhaust pipeline in a sealing mode. The calcium carbonate dust recovery part is communicated with a tail gas output pipe at the bottom of the rotary screening part and is used for recovering calcium carbonate dust in the waste gas. Waste gas that production calcium carbonate produced lets in the rotation screening portion in (calcium carbonate powder in the waste gas has the granule size difference, so need sieve the granule that the fineness is unable), the rotation screening portion makes in the waste gas fine calcium carbonate granule can be better through rotating the mesh screen structure in the screening portion through the centrifugal force that rotates the production, and coarse calcium carbonate granule is because unable mesh screen structure through rotating the screening portion, so make coarse calcium carbonate granule stop inside the rotation screening portion, and then the realization is sieved calcium carbonate powder in the waste gas according to the big or small degree of granule. And then respectively introducing the tail gas containing the coarse calcium carbonate particles and the tail gas containing the fine calcium carbonate particles into a calcium carbonate dust recovery part (by introducing the waste gas into clear water, and then collecting and recovering calcium carbonate powder contained in the waste gas in a standing and precipitating manner), respectively collecting the calcium carbonate powder with different thicknesses, and simultaneously removing the calcium carbonate powder contained in the tail gas. In conclusion, the tail gas recycling device in calcium carbonate processing disclosed by the invention has the function of recycling calcium carbonate powder in tail gas generated after calcium carbonate processing, so that waste of calcium carbonate caused by pollution of the tail gas generated in calcium carbonate production to the external environment is avoided.
Through set up air exhaust device on fine calcium carbonate granule output tube for be in the inside fine calcium carbonate granule of rotary screen part under the suction effect that air exhaust device produced, can be more easily through screening plant, and then improve the screening effect of rotary screen part to the calcium carbonate granule.
Through set up the roll connection device between rotary screen main part and shell for the shell is stabilized the resistance that produces the rotary screen main part when rotating the screen main part is littleer (becoming sliding friction through rolling friction between the two originally), and then improves the life of rotary screen main part.
Through inside a plurality of and the rotating sieve main part baffle of rotating the axis vertically that sets up of rotating the sieve main part for when tail gas enters into the rotating sieve main part, can directly not be followed the thick calcium carbonate granule output tube direct discharge of bottom, improve the dwell time of tail gas in the rotating sieve main part inside, and then improve the rotating sieve main part and to the screening effect of the calcium carbonate granule in the tail gas (make more fine calcium carbonate granule can pass through the mesh screen structure in the rotating sieve main part).
Drawings
FIG. 1 is a schematic structural diagram of a tail gas recycling device in calcium carbonate processing disclosed by the invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic view of a seal connection;
FIG. 4 is a schematic view of the structure of a calcium carbonate dust recovery unit.
In the figure:
1. a housing; 2. rotating and screening; 3. a power section; 4. sealing the connection part; 5. a calcium carbonate dust recovery part; 11. a fine calcium carbonate particle output pipe; 12. an air extraction device; 21. a tail gas input pipe; 22. rotating the screen body; 23. a coarse calcium carbonate particle output pipe; 24. a rolling connection device; 31. a gear tooth structure; 32. a power motor; 41. a sealing body; 42. a bearing device; 43. a mechanical seal device; 51. a recovery tank; 52. an electromagnetic valve; 221. a baffle plate; 241. a wedge ring; 242. a groove; 243. and (5) steel balls.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in figures 1 to 4 of the drawings,
the tail gas cyclic utilization device in calcium carbonate processing that provides in this embodiment includes shell, rotation screening part, power portion, sealing connection portion, calcium carbonate dust recovery portion. Wherein, the shell is a closed cylindrical structure, and the shell is obliquely arranged. Rotation screening portion sets up in the inside of shell, rotates screening portion rotation axis slope setting, and calcium carbonate processing tail gas is by the top input of rotation screening portion, and the bottom output rotates screening portion and is arranged in sieving the calcium carbonate dust of granularity difference in the waste gas. The power part is used for providing power required by the rotation of the rotary sieving part. The sealing connection parts are arranged at the upper end and the lower end of the rotary screening part and used for enabling the rotary screening part to be connected with the exhaust pipeline in a sealing mode. The calcium carbonate dust recovery part is communicated with a tail gas output pipe at the bottom of the rotary screening part and is used for recovering calcium carbonate dust in the waste gas. Waste gas that production calcium carbonate produced lets in the rotation screening portion in (calcium carbonate powder in the waste gas has the granule size difference, so need sieve the granule that the fineness is unable), the rotation screening portion makes in the waste gas fine calcium carbonate granule can be better through rotating the mesh screen structure in the screening portion through the centrifugal force that rotates the production, and coarse calcium carbonate granule is because unable mesh screen structure through rotating the screening portion, so make coarse calcium carbonate granule stop inside the rotation screening portion, and then the realization is sieved calcium carbonate powder in the waste gas according to the big or small degree of granule. And then respectively introducing the tail gas containing the coarse calcium carbonate particles and the tail gas containing the fine calcium carbonate particles into a calcium carbonate dust recovery part (by introducing the waste gas into clear water, and then collecting and recovering calcium carbonate powder contained in the waste gas in a standing and precipitating manner), respectively collecting the calcium carbonate powder with different thicknesses, and simultaneously removing the calcium carbonate powder contained in the tail gas. In conclusion, the tail gas recycling device in calcium carbonate processing disclosed by the invention has the function of recycling calcium carbonate powder in tail gas generated after calcium carbonate processing, so that waste of calcium carbonate caused by pollution of the tail gas generated in calcium carbonate production to the external environment is avoided.
Furthermore, the bottom of the shell is provided with a fine calcium carbonate particle output pipe, the output pipe is also provided with an air extractor, and the air extractor is used for enabling fine calcium carbonate particles in the rotary screening part to better pass through the screening of the rotary screening part. Through set up air exhaust device on fine calcium carbonate granule output tube for be in the inside fine calcium carbonate granule of rotary screen part under the suction effect that air exhaust device produced, can be more easily through screening plant, and then improve the screening effect of rotary screen part to the calcium carbonate granule.
Further, the rotary screening part comprises a tail gas input pipe, a coarse calcium carbonate particle output pipe and a rotary screen main body. The tail gas input pipe is used for inputting the tail gas of calcium carbonate processing to the inside of rotating screening portion, and the one end of tail gas input pipe is connected with sealing connection portion. The rotatable setting of rotating sieve main part is inside the shell, and the upper end of rotating sieve main part is linked together with the other end of tail gas input tube, and the side of rotating sieve main part is provided with the mesh screen structure, and the mesh screen structure is arranged in sieving the calcium carbonate granule in the waste gas, and sieves the during operation, and the rotating sieve main part is in the rotation state. One end of the coarse calcium carbonate particle output pipe is communicated with the lower end of the rotary screen main body, the other end of the coarse calcium carbonate particle output pipe is communicated with the sealing connecting part, and the coarse calcium carbonate particle output pipe is used for discharging calcium carbonate particles which cannot pass through the mesh screen structure on the rotary screen main body into the rotary screen main body.
Further, the rotary screening portion further comprises a rolling connection device, and the rolling connection device is arranged between the rotary screen main body and the shell and used for limiting the position of the rotary screen main body and reducing friction between the rotary screen main body and the shell. Through set up the roll connection device between rotary screen main part and shell for the shell is stabilized the resistance that produces the rotary screen main part when rotating the screen main part is littleer (becoming sliding friction through rolling friction between the two originally), and then improves the life of rotary screen main part.
Further, the rolling connection device comprises a steel ball, a groove and a wedge ring. The section of the wedge-shaped ring is crescent, and the wedge-shaped ring is fixed on the upper end surface and the lower end surface of the rotating screen main body. The groove is arranged on the shell at a position close to the wedge-shaped ring. The steel ball is movably arranged in the groove and is in rotating fit with the surface of the wedge-shaped ring. The position of the steel ball is limited by the groove and the wedge-shaped ring, so that the steel ball can be stably positioned at a preset position, and the rotating sieve main body and the shell are kept in a rolling friction fit state. And because the steel ball position is injectd by recess and wedge type ring, and then make the position of rotating screen main part also fixed for the shell (wedge type ring is fixed in rotating screen main part, and the wedge ring receives blockking of steel ball for the wedge ring can offset the trend that rotating screen main part removed), make the rotating screen main part can be stable be in the original position and carry out rotary screening.
Further, the power part comprises a gear tooth structure and a power motor. The gear tooth structure is arranged at the bottom of the rotary screening part. The output end of the power motor is matched with the gear tooth structure in a gear meshing mode.
Further, the sealing connection part comprises a mechanical sealing device, a bearing device and a sealing main body. One end of the sealing main body is connected with the fixed pipeline, a sealing gasket for sealing is arranged at the connecting position of the sealing main body and the fixed pipeline, and the other end of the sealing main body is communicated with the rotary screening part. The bearing device is arranged at the connection matching position of the sealing main body and the rotating screening part and is used for preventing the rotating screening part from being blocked by the sealing main body when rotating. The mechanical sealing device is arranged at the joint and matching position of the sealing main body and the rotary screening part and used for enabling the sealing main body and the rotary screening part to be in sealing connection.
Further, the calcium carbonate dust recovery part comprises an electromagnetic valve and a recovery tank. The inside recovery liquid that is provided with of accumulator, in the inside recovery liquid of accumulator was inserted to the tail gas output tube, the top of accumulator was provided with the waste gas discharge port, and the bottom of accumulator is for leaking hopper-shaped, and the bottom of accumulator is provided with calcium carbonate row powder discharge pipe. The electromagnetic valve is arranged on the calcium carbonate discharge pipe and used for controlling the opening and closing of the calcium carbonate discharge pipe. When a large amount of calcium carbonate powder is deposited in the recovery tank, the calcium carbonate powder at the bottom of the recovery tank can automatically flow out only by opening the electromagnetic valve, so that the calcium carbonate powder is recycled.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (8)
1. The utility model provides a tail gas cyclic utilization device in calcium carbonate processing which characterized in that includes:
the shell is of a closed cylindrical structure and is obliquely arranged;
the rotary screening part is arranged in the shell, the rotary axis of the rotary screening part is arranged in an inclined manner, the calcium carbonate processing tail gas is input from the top and output from the bottom of the rotary screening part, and the rotary screening part is used for screening calcium carbonate dust with different granularity in the waste gas;
the power part is used for providing power required by the rotation of the rotary screening part;
the sealing connection parts are arranged at the upper end and the lower end of the rotary screening part and are used for enabling the rotary screening part to be connected with the exhaust pipeline in a sealing mode;
and the calcium carbonate dust recovery part is communicated with the tail gas output pipe at the bottom of the rotary screening part and is used for recovering the calcium carbonate dust in the waste gas.
2. The tail gas recycling device in calcium carbonate processing according to claim 1, characterized in that:
the bottom of shell is provided with fine calcium carbonate granule output tube, still be provided with air exhaust device on the output tube, air exhaust device is used for making and is in fine calcium carbonate granule inside the rotary screen divides better the screening that passes through the rotary screen divides.
3. The apparatus of claim 1, wherein the rotary screening part comprises:
the tail gas input pipe is used for inputting tail gas of calcium carbonate processing into the rotary screening part, and one end of the tail gas input pipe is connected with the sealing connection part;
the rotary screen main body is rotatably arranged in the shell, the upper end of the rotary screen main body is communicated with the other end of the tail gas input pipe, a mesh screen structure is arranged on the side face of the rotary screen main body, the mesh screen structure is used for screening calcium carbonate particles in waste gas, and the rotary screen main body is in a rotating state during screening;
and the coarse calcium carbonate particle output pipe is used for discharging calcium carbonate particles which cannot pass through a mesh screen structure on the rotary screen main body into the rotary screen main body.
4. The tail gas recycling device in calcium carbonate processing according to claim 3, characterized in that:
the rotary screening part further comprises a rolling connection device, wherein the rolling connection device is arranged between the rotary screening main body and the shell and used for limiting the position of the rotary screening main body and reducing friction between the rotary screening main body and the shell.
5. The tail gas recycling device in calcium carbonate processing according to claim 4, wherein the rolling connection device comprises:
the cross section of the wedge-shaped ring is crescent, and the wedge-shaped ring is fixed on the upper end surface and the lower end surface of the rotating screen main body;
a groove disposed on the housing proximate the wedge ring;
and the steel ball is movably arranged in the groove and is in running fit with the surface of the wedge-shaped ring.
6. The device of claim 1, wherein the power unit comprises:
a gear tooth structure disposed at a bottom of the rotary sifting portion;
and the output end of the power motor is matched with the gear tooth structure in a gear meshing manner.
7. The device of claim 1, wherein the sealing connection portion comprises:
one end of the sealing main body is connected with the fixed pipeline, a sealing gasket for sealing is arranged at the connecting position of the sealing main body and the fixed pipeline, and the other end of the sealing main body is communicated with the rotary screening part;
the bearing device is arranged at the joint and matching part of the sealing main body and the rotary screening part and is used for preventing the rotary screening part from being blocked by the sealing main body when rotating;
and the mechanical sealing device is arranged at the joint and matching part of the sealing main body and the rotary screening part and is used for sealing and connecting the sealing main body and the rotary screening part.
8. The device of claim 1, wherein the calcium carbonate dust recovery unit comprises:
the tail gas output pipe is inserted into the recovery liquid in the recovery tank, the top of the recovery tank is provided with a waste gas outlet, the bottom of the recovery tank is funnel-shaped, and the bottom of the recovery tank is provided with a calcium carbonate powder discharge pipe;
and the electromagnetic valve is arranged on the calcium carbonate discharge pipe and used for controlling the opening and closing of the calcium carbonate discharge pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011442936.1A CN112704962A (en) | 2020-12-08 | 2020-12-08 | Tail gas cyclic utilization device in calcium carbonate processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011442936.1A CN112704962A (en) | 2020-12-08 | 2020-12-08 | Tail gas cyclic utilization device in calcium carbonate processing |
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| Publication Number | Publication Date |
|---|---|
| CN112704962A true CN112704962A (en) | 2021-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011442936.1A Pending CN112704962A (en) | 2020-12-08 | 2020-12-08 | Tail gas cyclic utilization device in calcium carbonate processing |
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| Country | Link |
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| CN (1) | CN112704962A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110000827A1 (en) * | 2008-02-07 | 2011-01-06 | Seishin Enterprise Co., Ltd. | Air sieving method and apparatus |
| CN209405949U (en) * | 2018-11-22 | 2019-09-20 | 枣阳锦江粉体科技材料有限公司 | Tail gas recycling device in a kind of processing of calcium carbonate |
| CN210647273U (en) * | 2019-05-29 | 2020-06-02 | 宿迁市现代生物科技股份有限公司 | Air current sieve for calcium carbonate production |
| CN210993452U (en) * | 2019-09-26 | 2020-07-14 | 广西贺州市华鸿新材料有限公司 | Tail gas dust collector is used in calcium carbonate production |
| CN211707338U (en) * | 2020-03-01 | 2020-10-20 | 泉州南一工业设计服务有限公司 | Grit screening plant |
-
2020
- 2020-12-08 CN CN202011442936.1A patent/CN112704962A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110000827A1 (en) * | 2008-02-07 | 2011-01-06 | Seishin Enterprise Co., Ltd. | Air sieving method and apparatus |
| CN209405949U (en) * | 2018-11-22 | 2019-09-20 | 枣阳锦江粉体科技材料有限公司 | Tail gas recycling device in a kind of processing of calcium carbonate |
| CN210647273U (en) * | 2019-05-29 | 2020-06-02 | 宿迁市现代生物科技股份有限公司 | Air current sieve for calcium carbonate production |
| CN210993452U (en) * | 2019-09-26 | 2020-07-14 | 广西贺州市华鸿新材料有限公司 | Tail gas dust collector is used in calcium carbonate production |
| CN211707338U (en) * | 2020-03-01 | 2020-10-20 | 泉州南一工业设计服务有限公司 | Grit screening plant |
Non-Patent Citations (2)
| Title |
|---|
| 李其钒等: "《选煤机械》", 30 June 2011, 煤炭工业出版社 * |
| 邢冠梅等: "《机械原理与设计 第2版》", 31 August 2018, 同济大学出版社 * |
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Application publication date: 20210427 |
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