Dust-containing steam leading-out treatment system
By designing a dust-containing steam export processing system, using the combination of multi-stage dust removal tower and flue gas scrubber, the problems of blockage and low dust removal efficiency of flue gas cooler are solved, and the load of the flue gas system and the improvement of dust removal effect are achieved.
Patent Information
- Application Number
- CN202421930449.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-10
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-10
AI Technical Summary
The ATP device flue gas cooler has a reduced heat exchange efficiency due to blockage, the flue gas fan load increases, and the dust removal efficiency of the flue cyclone splitter is not high, and the water vapor and dust content is high, making it difficult to transform.
A dust-containing steam export treatment system is designed, including a first-stage dust removal tower, a second-stage dust removal tower, ash scrubber, ash humidifier and chimney. The dust-containing steam is transported to the flue gas scrubber through the induction fan for multiple washings. Combined with the circulating water system of the circulating pump and the slurry pump, the water vapor and dust content in the flue gas is reduced.
It effectively reduces the load of the flue gas system, reduces the blockage of the cooler, improves the dust removal efficiency, and ensures stable production of the device.
Smart Images
Figure CN223082510U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of flue gas treatment, in particular to a dust-containing steam extraction and treatment system. Background Technique
[0002] The flue gas cooler of the ATP device becomes blocked as the operation time extends, resulting in a reduction in heat exchange efficiency and an increase in the load of the flue gas fan. Deep-level manifestations include low dust removal efficiency of the flue gas cyclone separator and a relatively large water vapor content in the flue gas. It is difficult to transform the flue gas cyclone separator, and the on-site construction difficulty is relatively large. If it is considered to reduce the water vapor content in the flue gas and at the same time reduce the dust content, the load of the flue gas fan can be reduced, the occurrence of blockage of the flue gas cooler can be reduced, which plays a positive role in the stable production of the device. By adopting the method of separately extracting the water vapor and dust generated after watering the slag by the ash humidifier, the total content of water vapor and dust in the original flue gas is reduced, and the load of the flue gas system is reduced, thereby reducing the occurrence of blockage of the flue gas cooler caused by excessive water vapor and dust. Content of the Utility Model
[0003] The purpose of the utility model is to provide a dust-containing steam extraction and treatment system, which solves the problems put forward in the above background technique.
[0004] To achieve the above purpose, the utility model provides the following technical solution: A dust-containing steam extraction and treatment system includes a primary dust removal tower. A secondary dust removal tower is arranged on the right side of the primary dust removal tower. A tower water tank is arranged below the primary dust removal tower and the secondary dust removal tower, and the tower water tank is connected with the water outlets of the primary dust removal tower and the secondary dust removal tower through pipelines. A flue gas scrubbing tower is arranged on the right side of the secondary dust removal tower. An ash humidifier is arranged on the right side of the flue gas scrubbing tower. A chimney is arranged on the right side of the ash humidifier. The gas outlet end of the flue gas scrubbing tower is connected with the gas inlet of the chimney through a pipeline. A large water tank is arranged at the lower right of the chimney. A large slurry pump is connected to the left side of the large water tank through a pipeline.
[0005] Preferably, the gas outlet end of the secondary dust removal tower is connected with a first induced draft fan and a second induced draft fan through pipelines, and the first induced draft fan and the second induced draft fan are connected through a pipeline. The first induced draft fan and the second induced draft fan are connected to the flue gas scrubbing tower through pipelines. Through the arrangement of the first induced draft fan and the second induced draft fan, the flue gas after being scrubbed by the flue gas scrubbing tower can be exhausted, and softened water can be conveyed through pipelines at the first induced draft fan and the second induced draft fan, so that the sewage in the first induced draft fan and the second induced draft fan can flow back to the secondary dust removal tower.
[0006] Preferably, a buffer water tank is connected to the lower left of the tower water tank through a pipeline, and a first buffer water pump and a second buffer water pump are connected to the right side of the buffer water tank through pipelines. Through the arrangement of the buffer water tank, it can be used to receive the overflowed upper clear liquid at the tower water tank.
[0007] Preferably, a first circulation pump, a second circulation pump, a third circulation pump, and a fourth circulation pump are sequentially arranged on the right side of the first buffer water pump and the second buffer water pump. The first circulation pump is connected to the spray pipe of the primary dust removal tower through a pipeline. The second circulation pump is connected to the air inlet of the primary dust removal tower through a pipeline. The third circulation pump and the fourth circulation pump are jointly connected to the spray pipe of the secondary dust removal tower through a pipeline. The first circulation pump, the second circulation pump, the third circulation pump, and the fourth circulation pump are jointly connected to the water tank under the tower through a pipeline. Through the arrangement of the first circulation pump, the second circulation pump, the third circulation pump, and the fourth circulation pump, the upper clear liquid in the water tank under the tower can be circulated and added into the primary dust removal tower and the secondary dust removal tower for spray use.
[0008] Preferably, a first slurry pump, a second slurry pump, and a third slurry pump are sequentially arranged on the right side of the first circulation pump, the second circulation pump, the third circulation pump, and the fourth circulation pump. The first slurry pump, the second slurry pump, and the third slurry pump are all connected to the water tank under the tower through pipelines. The third slurry pump is connected to the large water tank through a pipeline. The first slurry pump, the second slurry pump, and the third slurry pump are all connected to the flue gas scrubbing tower through pipelines. Through the arrangement of the first slurry pump, the second slurry pump, and the third slurry pump, the dust-containing water at the lower part of the water tank under the tower can be sent to the middle part of the flue gas scrubbing tower to wash the steam for the third time.
[0009] Preferably, a first bottom pump and a second bottom pump are sequentially arranged on the right side of the first slurry pump, the second slurry pump, and the third slurry pump. The first bottom pump is connected to the sewage discharge pipe of the flue gas scrubbing tower through a pipeline. The second bottom pump is connected to a small water tank through a pipeline. The first bottom pump and the second bottom pump are both connected to the ash humidifier through pipelines. The return water of the flue gas scrubbing tower is divided into two parts by the first bottom pump and the second bottom pump. One part is sent to the upper part of the flue gas scrubbing tower for spray washing, and the other part is sent back to the ash humidifier for slag watering. The dust after three-stage washing is sent back to the shale waste residue and conveyed to the slag yard by a belt.
[0010] The beneficial effects of the present utility model are as follows: By leading out the dust-containing steam generated by watering the slag with the ash humidifier, spraying and dust removal are carried out in the primary dust removal tower and the secondary dust removal tower, and it is transported to the flue gas scrubbing tower by an induced draft fan for the third-stage washing and dust reduction. The treated gas is directly discharged from the chimney. A circulating water system is jointly composed of external industrial water supply, the circulating water pumps under the primary dust removal tower and the secondary dust removal tower, the water tank under the tower, the slurry pump, and the low pump of the flue gas scrubbing tower, thereby greatly reducing the dust content in the steam. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is the system flow chart of the present utility model.
[0012] In the figure: 1. First-stage dust removal tower; 2. Second-stage dust removal tower; 3. Water pool under the tower; 4. No. 1 induced draft fan; 5. No. 2 induced draft fan; 6. Flue gas scrubber; 7. Ash humidifier; 8. Chimney; 9. Buffer water tank; 11. Buffer water pump 1; 12. Buffer water pump 2; 21. Circulating pump 1; 22. Circulating pump 2; 23. Circulating pump 3; 24. Circulating pump 4; 31. Slurry pump 1; 32. Slurry pump 2; 33. Slurry pump 3; 41. Tower bottom pump 1; 42. Tower bottom pump 2; 43. Small water tank; 51. Large slurry pump; 52. Large water tank. DETAILED DESCRIPTION
[0013] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0014] See also Figure 1 A dust-containing steam extraction and processing system comprises a primary dust removal tower 1, a secondary dust removal tower 2 is arranged on the right side of the primary dust removal tower 1, a tower bottom water pool 3 is arranged below the primary dust removal tower 1 and the secondary dust removal tower 2, and the tower bottom water pool 3 is connected with the water outlets of the primary dust removal tower 1 and the secondary dust removal tower 2 through a pipeline, a flue gas washing tower 6 is arranged on the right side of the secondary dust removal tower 2, an ash humidifier 7 is arranged on the right side of the flue gas washing tower 6, a chimney 8 is arranged on the right side of the ash humidifier 7, an air outlet end of the flue gas washing tower 6 is connected with the air inlet of the chimney 8 through a pipeline, a large water tank 52 is arranged at the lower right side of the chimney 8, and a large slurry pump 51 is connected to the left side of the large water tank 52 through a pipeline. The air outlet of the secondary dust removal tower 2 is connected to the No. 1 induced draft fan 4 and the No. 2 induced draft fan 5 through a pipeline, and the No. 1 induced draft fan 4 and the No. 2 induced draft fan 5 are connected through a pipeline, and the No. 1 induced draft fan 4 and the No. 2 induced draft fan 5 are connected to the flue gas washing tower 6 through a pipeline. Through the arrangement of the No. 1 induced draft fan 4 and the No. 2 induced draft fan 5, the flue gas washed by the flue gas washing tower 6 can be exhausted, and softened water can be transported through the pipeline at the No. 1 induced draft fan 4 and the No. 2 induced draft fan 5, so that the sewage in the No. 1 induced draft fan 4 and the No. 2 induced draft fan 5 can flow back to the secondary dust removal tower 2. The lower left side of the water pool 3 under the tower is connected to a buffer water tank 9 through a pipeline, and the right side of the buffer water tank 9 is connected to a buffer water pump 1 11 and a buffer water pump 2 12 through a pipeline. Through the arrangement of the buffer water tank 9, it can be used to receive the upper clear liquid overflowing from the water pool 3 under the tower.
[0015] See also Figure 1, on the right side of the buffer water pump 11 and the buffer water pump 12, there are successively arranged a circulation pump 21, a circulation pump 22, a circulation pump 23, and a circulation pump 24. The circulation pump 21 is connected to the spray pipe of the primary dust removal tower 1 through a pipeline. The circulation pump 22 is connected to the air inlet of the primary dust removal tower 1 through a pipeline. The circulation pump 23 and the circulation pump 24 are jointly connected to the spray pipe of the secondary dust removal tower 2 through a pipeline. The circulation pump 21, the circulation pump 22, the circulation pump 23, and the circulation pump 24 are jointly connected to the tower bottom water tank 3 through a pipeline. Through the arrangement of the circulation pump 21, the circulation pump 22, the circulation pump 23, and the circulation pump 24, the upper clear liquid in the tower bottom water tank 3 can be circulated and added into the primary dust removal tower 1 and the secondary dust removal tower 2 for spray use.
[0016] Please refer to Figure 1 , on the right side of the circulation pump 21, the circulation pump 22, the circulation pump 23, and the circulation pump 24, there are successively arranged a slurry pump 31, a slurry pump 32, and a slurry pump 33. The slurry pump 31, the slurry pump 32, and the slurry pump 33 are all connected to the tower bottom water tank 3 through a pipeline. The slurry pump 33 is connected to the large water tank 52 through a pipeline. The slurry pump 31, the slurry pump 32, and the slurry pump 33 are all connected to the flue gas scrubbing tower 6 through a pipeline. Through the arrangement of the slurry pump 31, the slurry pump 32, and the slurry pump 33, the dust-containing water at the lower part of the tower bottom water tank 3 can be sent to the middle part of the flue gas scrubbing tower 6 to wash the steam for the third time.
[0017] Please refer to Figure 1 , on the right side of the slurry pump 31, the slurry pump 32, and the slurry pump 33, there are successively arranged a tower bottom pump 41 and a tower bottom pump 42. The tower bottom pump 41 is connected to the sewage discharge pipe of the flue gas scrubbing tower 6 through a pipeline. The tower bottom pump 42 is connected to a small water tank 43 through a pipeline. The tower bottom pump 41 and the tower bottom pump 42 are both connected to the ash humidifier 7 through a pipeline. The return water of the flue gas scrubbing tower 6 is divided into two parts by the tower bottom pump 41 and the tower bottom pump 42. One part is sent to the upper part of the flue gas scrubbing tower 6 for spray washing, and the other part is sent back to the ash humidifier 7 for slag watering. The dust after the third-stage washing is sent back to the shale waste residue and transported to the slag yard by a belt.
[0018] The specific implementation process of the present utility model is as follows: The primary dust removal tower 1 and the secondary dust removal tower 2 are respectively provided with a first circulation pump 21, a second circulation pump 22, a third circulation pump 23, and a fourth circulation pump 24. Then, the upper clear liquid of the tower bottom water pool 3 is extracted for spraying. The dust-containing sewage after spraying enters the tower bottom water pool 3 for precipitation. The first slurry pump 31, the second slurry pump 32, and the third slurry pump 33 send the dust-containing water at the lower part of the tower bottom water pool 3 to the middle part of the flue gas washing tower 6 to conduct the third washing of the steam. The return water of the flue gas washing tower 6 is divided into two parts by the first tower bottom pump 41 and the second tower bottom pump 42. One part is sent to the upper part of the flue gas washing tower 6 for spray washing, and the other part is sent back to the ash humidifier 7 for slag watering. The dust after the three-stage washing is sent back to the shale waste residue and conveyed to the slag yard by a belt. The water replenishment loss in the system is supplemented by mine water.
[0019] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A dust-containing steam export treatment system, comprising a primary dust removal tower (1), characterized in that: A secondary dust removal tower (2) is provided on the right side of the primary dust removal tower (1). A tower bottom water tank (3) is provided below the primary dust removal tower (1) and the secondary dust removal tower (2), and the tower bottom water tank (3) is connected to the water outlets of the primary dust removal tower (1) and the secondary dust removal tower (2) through pipelines. A flue gas scrubbing tower (6) is provided on the right side of the secondary dust removal tower (2). An ash humidifier (7) is provided on the right side of the flue gas scrubbing tower (6). A chimney (8) is provided on the right side of the ash humidifier (7). The gas outlet end of the flue gas scrubbing tower (6) is connected to the gas inlet of the chimney (8) through a pipeline. A large water tank (52) is provided at the lower right of the chimney (8), and a large slurry pump (51) is connected to the left side of the large water tank (52) through a pipeline.
2. The dust-containing steam extraction and treatment system according to claim 1, wherein: The gas outlet end of the secondary dust removal tower (2) is connected to a first induced draft fan (4) and a second induced draft fan (5) through pipelines, and the first induced draft fan (4) and the second induced draft fan (5) are connected through a pipeline. The first induced draft fan (4) and the second induced draft fan (5) are connected to the flue gas scrubbing tower (6) through pipelines.
3. The dust-containing steam export and treatment system according to claim 1, characterized in that: A buffer water tank (9) is connected to the lower left of the tower bottom water tank (3) through a pipeline, and a first buffer water pump (11) and a second buffer water pump (12) are connected to the right side of the buffer water tank (9) through pipelines.
4. The dust-containing steam extraction and treatment system according to claim 3, wherein: On the right side of the first buffer water pump (11) and the second buffer water pump (12), a first circulation pump (21), a second circulation pump (22), a third circulation pump (23), and a fourth circulation pump (24) are arranged in sequence. The first circulation pump (21) is connected to the spray pipe of the primary dust removal tower (1) through a pipeline. The second circulation pump (22) is connected to the gas inlet of the primary dust removal tower (1) through a pipeline. The third circulation pump (23) and the fourth circulation pump (24) are jointly connected to the spray pipe of the secondary dust removal tower (2) through a pipeline. The first circulation pump (21), the second circulation pump (22), the third circulation pump (23), and the fourth circulation pump (24) are jointly connected to the tower bottom water tank (3) through pipelines.
5. A dust-laden steam extraction and processing system according to claim 4, characterized in that: On the right side of the first circulation pump (21), the second circulation pump (22), the third circulation pump (23), and the fourth circulation pump (24), a first slurry pump (31), a second slurry pump (32), and a third slurry pump (33) are arranged in sequence. The first slurry pump (31), the second slurry pump (32), and the third slurry pump (33) are all connected to the tower bottom water tank (3) through pipelines. The third slurry pump (33) is connected to the large water tank (52) through a pipeline. The first slurry pump (31), the second slurry pump (32), and the third slurry pump (33) are all connected to the flue gas scrubbing tower (6) through pipelines.
6. The dust-containing steam extraction and treatment system according to claim 5, wherein: On the right side of the first slurry pump (31), the second slurry pump (32), and the third slurry pump (33), a first tower bottom pump (41) and a second tower bottom pump (42) are arranged in sequence. The first tower bottom pump (41) is connected to the sewage pipe of the flue gas scrubbing tower (6) through a pipeline. The second tower bottom pump (42) is connected to a small water tank (43) through a pipeline. The first tower bottom pump (41) and the second tower bottom pump (42) are both connected to the ash humidifier (7) through pipelines.