CN213965796U - Flue gas dedusting and desulfurizing system of rotary kiln for gypsum powder calcination - Google Patents
Flue gas dedusting and desulfurizing system of rotary kiln for gypsum powder calcination Download PDFInfo
- Publication number
- CN213965796U CN213965796U CN202022370567.1U CN202022370567U CN213965796U CN 213965796 U CN213965796 U CN 213965796U CN 202022370567 U CN202022370567 U CN 202022370567U CN 213965796 U CN213965796 U CN 213965796U
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- CN
- China
- Prior art keywords
- filter
- fan
- dust collector
- rotary kiln
- desulfurizing tower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000003009 desulfurizing effect Effects 0.000 title claims abstract description 31
- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 20
- 239000010440 gypsum Substances 0.000 title claims abstract description 20
- 239000000843 powder Substances 0.000 title claims abstract description 17
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 238000001354 calcination Methods 0.000 title claims abstract description 11
- 239000003546 flue gas Substances 0.000 title claims abstract description 11
- 239000000428 dust Substances 0.000 claims abstract description 61
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 239000007921 spray Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 238000005406 washing Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 13
- 238000006477 desulfuration reaction Methods 0.000 abstract description 7
- 230000023556 desulfurization Effects 0.000 abstract description 7
- 238000000746 purification Methods 0.000 abstract description 2
- 238000001802 infusion Methods 0.000 abstract 3
- 238000004519 manufacturing process Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a gypsum powder calcination rotary kiln flue gas dust removal desulfurization system, including cyclone and desulfurizing tower, the rotary kiln is connected to cyclone's air inlet, and cyclone's gas outlet passes through the pipeline intercommunication with the air inlet of desulfurizing tower. A conical filter hopper is arranged below an air outlet of the cyclone dust collector, a filter plate is connected to the lower end of the filter hopper, a filter screen is arranged on the lower surface of the filter plate, a fan is arranged below the filter plate, a brush is connected to the top of a fan blade of the fan, and the brush scrapes the surface of the filter screen when the fan rotates; the desulfurization tower is internally provided with a plurality of layers of spray heads, the spray heads are connected with infusion tubes, the lower ends of the infusion tubes are connected with a liquid storage tank at the bottom of the desulfurization tower, and the infusion tubes are also connected with water pumps. The cyclone dust collector is additionally provided with the filter hopper, so that dust can be further filtered and treated, and the dust purification rate is improved; in addition, the rotation fan can prevent the filter screen from being blocked, and the normal work of the system is guaranteed.
Description
Technical Field
The utility model belongs to the technical field of gypsum production, concretely relates to gypsum powder calcines rotary kiln flue gas dust removal desulfurization system.
Background
With the development and progress of the gypsum industry, the demand of gypsum powder is larger and larger, the quality requirement of gypsum powder is higher and higher, and the production and manufacturing process of gypsum powder is also continuously advanced. Gypsum powder belongs to powder materials, and can produce a large amount of dust in the calcining production process, thereby causing serious pollution to the production workshop environment and influencing normal production and personnel health, therefore, the dust collecting device of the gypsum powder calcining line is particularly important.
The cyclone dust collector is a dust collecting device commonly used in gypsum production, and the working principle is as follows: the dust-containing airflow enters the cyclone dust collector through the air inlet and then rotates, dust particles are separated from the airflow by means of centrifugal force and collected on the wall of the cyclone dust collector, and dust on the wall of the cyclone dust collector falls into the dust hopper under the action of gravity. Because the air current has disturbance, still have the dust in the gas of gas outlet gas, the dust removal effect is not good.
SUMMERY OF THE UTILITY MODEL
The utility model provides a gypsum powder calcines rotary kiln flue gas dust removal desulfurization system, aim at solve present gypsum production process in the dust great, the not good problem of dust recovery treatment effect.
Therefore, the utility model adopts the following technical scheme:
a flue gas dedusting and desulfurizing system of a rotary kiln for calcining gypsum powder comprises a cyclone dust collector and a desulfurizing tower;
the cyclone dust collector comprises a shell, an ash bucket, an air inlet and an air outlet, wherein a conical filter bucket is arranged below the air outlet of the cyclone dust collector, a round opening is formed in the bottom of the filter bucket, and the round opening is communicated with the air outlet; the circular opening is fixedly connected with a filter plate, the lower surface of the filter plate is provided with the filter screen, a fan is arranged below the filter plate, the top of the fan blade is connected with a hairbrush, and the hairbrush scrapes the surface of the filter screen when the fan rotates;
the bottom of the desulfurizing tower is provided with an air inlet, the top of the desulfurizing tower is provided with an air outlet, a plurality of layers of spray heads are arranged in the desulfurizing tower, the spray heads are connected with a liquid conveying pipe, the lower end of the liquid conveying pipe is connected with a liquid storage tank at the bottom of the desulfurizing tower, and the liquid conveying pipe is also connected with a water pump;
and the air inlet of the cyclone dust collector is connected with the rotary kiln, and the air outlet of the cyclone dust collector is communicated with the air inlet of the desulfurizing tower through a pipeline.
Furthermore, the conical surface of the filter hopper is in a concave curved surface shape.
Further, the washing liquid in the liquid storage tank is a sodium hydroxide solution.
Furthermore, a fan is arranged on a pipeline between the cyclone dust collector and the desulfurizing tower.
The beneficial effects of the utility model reside in that: the system firstly performs dust removal operation and then performs desulfurization treatment by serially connecting the cyclone dust collector and the desulfurization tower, collected dust can be recycled, resource waste is reduced, and production cost is reduced; the cyclone dust collector is additionally provided with the filter hopper, so that dust can be further filtered and treated, and the dust purification rate is improved; in addition, the rotation fan can prevent the filter screen from being blocked, and the normal work of the system is guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of a filter plate and fan arrangement;
in the figure: 1-shell, 2-ash bucket, 3-filter bucket, 4-filter plate, 5-fan, 6-brush, 7-desulfurizing tower, 8-fan, 9-spray head, 10-liquid storage tank, 11-liquid conveying pipe and 12-water pump.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1 and 2, the flue gas dedusting and desulfurizing system of the rotary kiln for gypsum powder calcination comprises a cyclone dust collector and a desulfurizing tower 7, wherein an air inlet of the cyclone dust collector is connected with the rotary kiln, an air outlet of the cyclone dust collector is communicated with an air inlet of the desulfurizing tower 7 through a pipeline, and a fan 8 is arranged on the pipeline between the cyclone dust collector and the desulfurizing tower 7.
The cyclone dust collector comprises a shell 1, an ash bucket 2, an air inlet and an air outlet, wherein a conical filter bucket 3 is arranged below the air outlet of the cyclone dust collector, and the conical surface of the filter bucket 3 is shaped like a curved surface which is sunken inwards. The bottom of the filter hopper 3 is provided with a circular opening which is communicated with the air outlet; fixedly connected with filter 4 on the circular opening, be equipped with the filter screen on the filter 4 lower surface, the below of filter 4 is equipped with fan 5, and fan 5 can rotate under the air current effect, and 5 flabellum tops of fan are connected with brush 6, and 6 scrapes the filter screen surfaces of brush when fan 5 rotates.
The bottom of desulfurizing tower 7 is equipped with the air inlet, the top is equipped with the gas vent, is equipped with multilayer shower nozzle 9 in the desulfurizing tower 7, is connected with transfer line 11 on the shower nozzle 9, and the liquid storage tank 10 of desulfurizing tower 7 bottom is connected to the lower extreme of transfer line 11, still is connected with water pump 12 on the transfer line 11, and the washing liquid in the liquid storage tank 10 is sodium hydroxide solution.
The working principle of the utility model is as follows:
the smoke dust gas released by the rotary kiln is collected and then enters the cyclone dust collector, the gas enters the back edge cyclone dust collector and rotates at a high speed, under the action of centrifugal force, dust is thrown to the inner wall of the cyclone dust collector and then falls into the ash bucket 2 below under the action of gravity, and the gas after dust removal in the middle of the cyclone dust collector is discharged through the filter bucket 3 and the gas outlet. Because the cyclone dust collector has limited dust removal capacity, part of dust is also carried in the gas after intermediate dust removal, and the dust can be filtered when passing through the filter plate 4. The dust on the filter plate 4 is accumulated too much, which easily causes blockage and influences the normal work of the cyclone dust collector. Therefore, the fan 5 is additionally arranged below the filter plates 4, the fan 5 automatically rotates under the action of air flow, and the brush 6 is used for scraping the surface of the filter screen to prevent dust from accumulating.
After the gas enters the desulfurizing tower 7 through the pipeline, the sodium hydroxide solution absorbs the sulfur dioxide gas therein, and the gas after absorption treatment meets the environmental protection requirement, namely is discharged into the atmosphere through a chimney.
It should be noted that the above are only some embodiments of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (4)
1. A flue gas dedusting and desulfurizing system of a rotary kiln for calcining gypsum powder is characterized by comprising a cyclone dust collector and a desulfurizing tower;
the cyclone dust collector comprises a shell, an ash bucket, an air inlet and an air outlet, wherein a conical filter bucket is arranged below the air outlet of the cyclone dust collector, a round opening is formed in the bottom of the filter bucket, and the round opening is communicated with the air outlet; the circular opening is fixedly connected with a filter plate, the lower surface of the filter plate is provided with the filter screen, a fan is arranged below the filter plate, the top of the fan blade is connected with a hairbrush, and the hairbrush scrapes the surface of the filter screen when the fan rotates;
the bottom of the desulfurizing tower is provided with an air inlet, the top of the desulfurizing tower is provided with an air outlet, a plurality of layers of spray heads are arranged in the desulfurizing tower, the spray heads are connected with a liquid conveying pipe, the lower end of the liquid conveying pipe is connected with a liquid storage tank at the bottom of the desulfurizing tower, and the liquid conveying pipe is also connected with a water pump;
and the air inlet of the cyclone dust collector is connected with the rotary kiln, and the air outlet of the cyclone dust collector is communicated with the air inlet of the desulfurizing tower through a pipeline.
2. The flue gas dedusting and desulfurizing system of the gypsum powder calcining rotary kiln as recited in claim 1, wherein the conical surface of the filter hopper is a curved surface shape with an inward recess.
3. The flue gas dedusting and desulfurizing system of the gypsum powder calcining rotary kiln as recited in claim 1, wherein the washing liquid in the liquid storage tank is sodium hydroxide solution.
4. The flue gas dedusting and desulfurizing system of the gypsum powder calcining rotary kiln as recited in claim 1, wherein a fan is disposed on the pipeline between the cyclone dust collector and the desulfurizing tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022370567.1U CN213965796U (en) | 2020-10-22 | 2020-10-22 | Flue gas dedusting and desulfurizing system of rotary kiln for gypsum powder calcination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022370567.1U CN213965796U (en) | 2020-10-22 | 2020-10-22 | Flue gas dedusting and desulfurizing system of rotary kiln for gypsum powder calcination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213965796U true CN213965796U (en) | 2021-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022370567.1U Expired - Fee Related CN213965796U (en) | 2020-10-22 | 2020-10-22 | Flue gas dedusting and desulfurizing system of rotary kiln for gypsum powder calcination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213965796U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114383121A (en) * | 2022-01-20 | 2022-04-22 | 山东正赢电力工程有限公司 | Vertical carbon waste heat boiler |
-
2020
- 2020-10-22 CN CN202022370567.1U patent/CN213965796U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114383121A (en) * | 2022-01-20 | 2022-04-22 | 山东正赢电力工程有限公司 | Vertical carbon waste heat boiler |
| CN114383121B (en) * | 2022-01-20 | 2024-03-29 | 山东正赢电力工程有限公司 | Vertical carbon waste heat boiler |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210817 |