Sulfur-containing waste gas purification and absorption device

Abstract

The invention belongs to the technical field of gas treatment, and discloses a sulfur-containing waste gas purification and absorption device which comprises a conveying pipe, a gas distribution assembly and an air treatment assembly. The gas distribution assembly comprises a branch pipe communicated with the conveying pipe, an inlet adjusting valve arranged on the branch pipe, a closed adjusting valve and an exhaust pipe; the air treatment assembly is arranged below the gas distribution assembly and comprises a filter pipe, a gas purification pipe and a molecular sieve temperature swing adsorber which are distributed below the branch pipe according to the gas flow direction; the whole composition structure of the device is a pipeline assembly, gas enters different gas diversion assemblies through gas diversion, the gas sequentially enters the filter pipe, the gas purifying pipe and the molecular sieve temperature swing adsorber through the gas diversion assemblies, and when the molecular sieve temperature swing adsorber adsorbs, saturates, heats and reduces, the gas purging and exhausting procedures can be met, and the gas purification efficiency is improved. Although being communicated with each other, independent restoration operation can be realized.

Description

Technical Field

[0001] The invention belongs to the technical field of gas processing, and in particular is a sulfur-containing waste gas purification and absorption device. Background Art

[0002] At present, impurities in flue gas are mainly removed by bag dust removal and directional filtration. Bag dust removal is efficient but large in size. In the flue gas cavity, particulate impurities are adsorbed on the surface of the filter bag. The filter bag is inflated by pulse airflow to make the filter bag elastically deformed. At this time, the filter bag elastically recovers and collides with the keel to shake off the dust. The filtered gas enters the subsequent molecular sieve for adsorption desulfurization. However, there is a problem of adsorption saturation in adsorption desulfurization. Therefore, adsorption desulfurization needs to be recycled for adsorption and precipitation. Adsorption desulfurization also requires the coordinated cooperation of multiple adsorption structures. The overall volume is large, which is not conducive to application in environments with small flue gas production. Summary of the invention

[0003] The purpose of the present invention is to provide a sulfur-containing waste gas purification absorption device to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A sulfur-containing waste gas purification and absorption device comprises a conveying pipe, a gas diversion component, and an air treatment component;

[0006] The delivery pipe is connected to four gas flow splitting components, and the gas flow splitting components include a branch pipe connected to the delivery pipe, an inlet regulating valve, a closed regulating valve, and an exhaust pipe arranged on the branch pipe;

[0007] The air treatment component is arranged below the gas diversion component, and the air treatment component includes a filter tube, a clean air tube, and a molecular sieve variable temperature adsorber distributed below the branch pipe according to the gas flow direction. A filter sleeve keel is fixedly connected inside the filter tube, and a sliding dust exhaust pipe is slidably connected below the filter sleeve keel. The sliding dust exhaust pipe extends to the outside of the filter tube, and a filter sleeve is provided on the outside of the filter sleeve keel. The top of the filter sleeve keel is fixed to the top of the filter tube, and the bottom end of the filter sleeve keel is fixedly connected to the sliding dust exhaust pipe. The sliding dust exhaust pipe is slidably connected to the filter sleeve keel via a sliding rod, and the diameter of the filter sleeve in a non-elastic deformation state is larger than the diameter of the filter sleeve keel.

[0008] As a further solution of the present invention: a barrel-type filter portion is arranged in the molecular sieve variable temperature adsorber, and the inner wall of the barrel-type filter portion is fixedly connected with staggered labyrinth filter plates, and an inflation pipe is arranged inside the air treatment component, and the inflation pipe is connected to an external purge air supply source, and a pipe is arranged on the inflation pipe, which is inserted from the side wall of the barrel-type filter portion and is located between two adjacent labyrinth filter plates in the vertical direction.

[0009] As a further solution of the present invention: an air outlet pipe is provided at the bottom of the molecular sieve temperature swing adsorber, and the outer diameter of the barrel-type filter part is smaller than the inner diameter of the molecular sieve temperature swing adsorber.

[0010] As a further solution of the present invention: an air inlet cavity is provided inside the branch pipe, and the air inlet cavity is connected with the filter tube and the delivery pipe, an air outlet cavity is provided in the middle of the branch pipe, the clean air pipe is connected with the cavity of the filter tube, the other end of the clean air pipe is connected with the air outlet cavity, the air outlet cavity and the exhaust pipe are controlled to be closed by the closed regulating valve, the exhaust pipe is connected with the barrel-type filter part, and an exhaust valve is provided on the exhaust pipe.

[0011] As a further solution of the present invention: it also includes a temperature control module, and the temperature control module controls the molecular sieve variable temperature adsorber to adjust the temperature so that the barrel filter part and the labyrinth filter plate can perform adsorption and precipitation cycles.

[0012] As a further solution of the present invention, a sulfur-containing waste gas purification and absorption device includes the following use method:

[0013] A: The gas enters the filter tube through the air inlet cavity. After the particulate matter in the gas is filtered by the filter sleeve, the impurities remain on the inner wall of the filter sleeve, and the flue gas enters the clean gas pipe through the outer cavity of the filter tube and enters the air outlet cavity. When the closed regulating valve is opened, the gas enters the molecular sieve temperature swing adsorber, and the gas flow is processed by the labyrinth filter plate, so that the flue gas is constantly in contact with and adsorbed by the molecular sieve during the flow. At the same time, the flue gas passes through the barrel filter part, so that the flue gas enters the interior of the molecular sieve temperature swing adsorber, and is discharged through the air outlet pipe. After filtering through the barrel filter part and the charging pipe, the sulfur in the gas is adsorbed in the molecular sieve.

[0014] B: When the relative positions of the sliding dust exhaust pipe and the filter tube are fixed, the flue gas rushes into the filter sleeve, and the filter sleeve expands outward to increase the filtering area. When restoring, you only need to pull the sliding dust exhaust pipe to make the sliding rod and the filter sleeve keel elastically deform, and the filter sleeve quickly stretches and moves radially inward. The filter sleeve hits the surface of the filter sleeve keel, and the dust on the inner wall of the filter sleeve falls into the sliding dust exhaust pipe and is discharged through the sliding dust exhaust pipe. This type of filtration is small in size and will not cause environmental pollution. Dust can also be collected in a directional manner. When in use, the sliding part between the sliding dust exhaust pipe and the filter tube is fixed and sealed in any way, and the port of the sliding dust exhaust pipe is also closed.

[0015] C: The gas first flows downward inside the barrel filter part, and is processed by the labyrinth filter plate, so that the gas fully contacts and reacts with the barrel filter part and the labyrinth filter plate. At the same time, the pressure inside the barrel filter part increases, and the gas is discharged into the molecular sieve temperature swing adsorber through the barrel filter part. During the analysis process, the purge gas is injected through the inflation pipe, the closed regulating valve is closed, the exhaust pipe is opened, and the molecular sieve temperature swing adsorber is heated by the temperature control module. The barrel filter part and the labyrinth filter plate are heated to precipitate impurities. The inflation pipe can purge the barrel filter part and the labyrinth filter plate to precipitate impurities. After the outlet pipe is closed, the purged impurities and the purge gas mixture are discharged through the exhaust pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The overall composition structure of the present invention is a pipeline component. Through gas diversion, the gas enters different gas diversion components, and the gas enters the filter tube, the clean gas pipe, and the molecular sieve variable temperature adsorber in turn through the gas diversion component. When the molecular sieve variable temperature adsorber is adsorbed to saturation and heated for reduction, it can meet the purge gas and exhaust processes. Although they are interconnected, they can be restored independently to prevent the gas from flowing back and avoid secondary pollution of the filtration. At the same time, the filter sleeve can gather and discharge the dust inside the filter sleeve by sliding and shocking. The simple integrated design takes into account the small size and can complete continuous processing and reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a three-dimensional schematic diagram of a sulfur-containing waste gas purification and absorption device;

[0020] Figure 2 It is a top view schematic diagram of a sulfur-containing waste gas purification and absorption device;

[0021] Figure 3 It is a cross-sectional schematic diagram of a sulfur-containing waste gas purification and absorption device;

[0022] In the figure: 1. delivery pipe; 2. gas diversion component; 21. branch pipe; 211. air inlet chamber; 212. air outlet chamber; 22. inlet regulating valve; 23. closed regulating valve; 24. exhaust pipe; 3. temperature control module; 4. air treatment component; 41. filter tube; 411. filter sleeve; 412. filter sleeve keel; 413. sliding dust exhaust pipe; 4131. sliding rod; 42. clean air pipe; 43. molecular sieve variable temperature adsorber; 431. air outlet pipe; 44. barrel filter section; 45. labyrinth filter plate; 46. inflation pipe. DETAILED DESCRIPTION

[0023] See also Figure 1-Figure 3 : In this embodiment: it includes a delivery pipe 1, a gas diversion component 2, and an air treatment component 4.

[0024] In this embodiment: in order to solve the volume problem and integrate the filtration and adsorption operations while completing the continuous processing of filtration recovery and adsorbate precipitation, a new structure is adopted to achieve this.

[0025] In this embodiment: the delivery pipe 1 mainly transports external flue gas to the gas diversion component 2, and diverts it through the gas diversion component 2. The air treatment component 4 is established by the gas diversion component 2. The number of gas diversion components 2 and air treatment components 4 is the same, so the gas diversion component 2 can alternately divert the airflow, so that each air treatment component 4 can be restored when the filtration is saturated and the adsorption is saturated.

[0026] In this embodiment: the delivery pipe 1 is connected to four gas diversion components 2, and the gas diversion component 2 includes a branch pipe 21 connected to the delivery pipe 1, an inlet regulating valve 22, a closed regulating valve 23, and an exhaust pipe 24 arranged on the branch pipe 21.

[0027] In this embodiment: the inlet regulating valve 22 is set at the junction of the delivery pipe 1 and the branch pipe 21. After the inlet regulating valve 22 is closed, the delivery pipe 1 and the branch pipe 21 cannot be connected. At the same time, the gas in the delivery pipe 1 cannot enter the air inlet cavity 211, and also cannot enter the filter tube 41. The gas enters the filter tube 41 through the air inlet cavity 211. After the particulate matter in the gas is filtered by the filter sleeve 411, the impurities remain on the inner wall of the filter sleeve 411, and the flue gas enters the clean gas pipe 42 through the outer cavity of the filter tube 41, and enters the air outlet cavity 212. When the closed regulating valve 23 is opened, the gas enters the molecular sieve variable temperature adsorber 43, and the gas circulation is subjected to a labyrinth treatment by the labyrinth filter plate 45, so that the flue gas is constantly in contact with and adsorbed by the molecular sieve during the flow. At the same time, the flue gas passes through the barrel filter section 44, so that the flue gas enters the interior of the molecular sieve variable temperature adsorber 43, and is discharged through the air outlet pipe 431. After being filtered by the barrel filter section 44 and the charging pipe 46, the sulfur in the gas is adsorbed in the molecular sieve, thereby achieving the purpose of directional treatment.

[0028] In this embodiment: the air treatment component 4 is arranged below the gas diversion component 2, and the air treatment component 4 includes a filter tube 41, a clean air pipe 42, and a molecular sieve variable temperature adsorber 43 distributed below the branch pipe 21 according to the gas flow direction. The filter tube 41 is fixedly connected to a filter sleeve keel 412, and a sliding dust exhaust pipe 413 is slidably connected below the filter sleeve keel 412. The sliding dust exhaust pipe 413 extends to the outside of the filter tube 41, and the filter sleeve keel 412 is externally sleeved with a filter sleeve 411. The top of the filter sleeve keel 412 is fixed to the top of the filter tube 41, and the bottom of the filter sleeve keel 412 is fixedly connected to the sliding dust exhaust pipe 413. The sliding dust exhaust pipe 413 extends to the outside of the filter tube 41. The tube 413 is slidably connected to the filter sleeve keel 412 by a sliding rod 4131. The diameter of the filter sleeve 411 in the non-elastic deformation state is larger than the diameter of the filter sleeve keel 412. An air inlet cavity 211 is arranged inside the branch pipe 21. The air inlet cavity 211 is connected to the filter tube 41 and the delivery pipe 1. An air outlet cavity 212 is arranged in the middle of the branch pipe 21. The clean air pipe 42 is connected to the cavity of the filter tube 41. The other end of the clean air pipe 42 is connected to the air outlet cavity 212. The air outlet cavity 212 and the exhaust pipe 24 are controlled to be closed by a closed regulating valve 23. The exhaust pipe 24 is connected to the barrel filter part 44. The exhaust pipe 24 is provided with an exhaust valve.

[0029] In this embodiment: In order to reduce the volume, the technical solution adopts an internal filtration method to process the flue gas particles. Since the diameter of the filter sleeve 411 in the non-elastic deformation state is larger than the diameter of the filter sleeve keel 412, when the relative positions of the sliding dust exhaust pipe 413 and the filter tube 41 are fixed, the flue gas rushes into the filter sleeve 411, and the filter sleeve 411 expands outward to increase the filtering area. When restoring, it is only necessary to pull the sliding dust exhaust pipe 413 to elastically deform the sliding rod 4131 and the filter sleeve keel 412, and the filter sleeve 411 is quickly stretched and moves radially inward. The filter sleeve 411 hits the surface of the filter sleeve keel 412, and the dust on the inner wall of the filter sleeve 411 falls into the sliding dust exhaust pipe 413 and is discharged through the sliding dust exhaust pipe 413. This type of filtration is small in size, does not cause environmental pollution, and dust can be collected in a targeted manner. When in use, the sliding portion between the sliding dust exhaust pipe 413 and the filter tube 41 is fixed and sealed in any manner, and the port of the sliding dust exhaust pipe 413 is also closed.

[0030] In the present embodiment: a barrel-type filter section 44 is arranged in the molecular sieve variable temperature adsorber 43, and the inner wall of the barrel-type filter section 44 is fixedly connected with staggered labyrinth filter plates 45, and an inflation pipe 46 is arranged inside the air treatment component 4, and the inflation pipe 46 is connected with an external purge air supply source, and a pipe is arranged on the inflation pipe 46, which is inserted from the side wall of the barrel-type filter section 44 and is located between two adjacent labyrinth filter plates 45 in the vertical direction, and an air outlet pipe 431 is arranged at the bottom of the molecular sieve variable temperature adsorber 43, and the outer diameter of the barrel-type filter section 44 is smaller than the inner diameter of the molecular sieve variable temperature adsorber 43, and also includes a temperature control module 3, and the temperature control module 3 controls the molecular sieve variable temperature adsorber 43 to adjust the temperature, so that the barrel-type filter section 44 and the labyrinth filter plate 45 can perform adsorption and precipitation cycles.

[0031] In this embodiment: the gas first flows downward inside the barrel-type filter section 44, and is processed by the labyrinth filter plate 45, so that the gas fully contacts and reacts with the barrel-type filter section 44 and the labyrinth filter plate 45. At the same time, the pressure inside the barrel-type filter section 44 increases, and the gas is discharged into the molecular sieve variable temperature adsorber 43 through the barrel-type filter section 44. During the analysis process, the purge gas is injected through the inflation pipe 46, the closed regulating valve 23 is closed, the exhaust pipe 24 is opened, and the molecular sieve variable temperature adsorber 43 is heated by the temperature control module 3. The barrel-type filter section 44 and the labyrinth filter plate 45 are heated to precipitate impurities. The inflation pipe 46 can purge the barrel-type filter section 44 and the labyrinth filter plate 45 to precipitate the impurities. After the outlet pipe 431 is closed, the purged impurities and the purge gas mixture are discharged through the exhaust pipe 24.

[0032] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sulfur-containing waste gas purification and absorption device, characterized in that: It comprises a delivery pipe (1), a gas flow distribution component (2), and an air treatment component (4); The delivery pipe (1) is connected to the four gas flow splitting components (2), and the gas flow splitting components (2) include a branch pipe (21) connected to the delivery pipe (1), an inlet regulating valve (22), a closed regulating valve (23), and an exhaust pipe (24) arranged on the branch pipe (21); The air treatment component (4) is arranged below the gas flow distribution component (2), and comprises a filter tube (41), a clean air tube (42), and a molecular sieve temperature-variable adsorber (43) distributed below the branch pipe (21) according to the gas flow direction, a filter sleeve keel (412) is fixedly connected inside the filter tube (41), a sliding dust exhaust pipe (413) is slidably connected below the filter sleeve keel (412), and the sliding dust exhaust pipe (413) extends to the filter tube (41). Externally, a filter sleeve (411) is provided on the outside of the filter sleeve keel (412); the top of the filter sleeve keel (412) is fixed to the top of the filter tube (41); the bottom of the filter sleeve keel (412) is fixedly connected to the sliding dust exhaust pipe (413); the sliding dust exhaust pipe (413) and the filter sleeve keel (412) are slidingly connected via a sliding rod (4131); the diameter of the filter sleeve (411) in a non-elastic deformation state is greater than the diameter of the filter sleeve keel (412).

2. A sulfur-containing waste gas purification and absorption device according to claim 1, characterized in that: The molecular sieve temperature-variable adsorber (43) is provided with a barrel-type filter portion (44), and the inner wall of the barrel-type filter portion (44) is fixedly connected with staggered labyrinth filter plates (45). The air treatment component (4) is provided with an air charging pipe (46) inside, and the air charging pipe (46) is connected to an external purge air supply source. The air charging pipe (46) is provided with a pipeline inserted from the side wall of the barrel-type filter portion (44) and located between two adjacent labyrinth filter plates (45) in the vertical direction.

3. A sulfur-containing waste gas purification and absorption device according to claim 2, characterized in that: An air outlet pipe (431) is provided at the bottom of the molecular sieve temperature swing adsorber (43), and the outer diameter of the barrel-type filter portion (44) is smaller than the inner diameter of the molecular sieve temperature swing adsorber (43).

4. The sulfur-containing waste gas purification and absorption device according to claim 1 is characterized in that: An air inlet cavity (211) is provided inside the branch pipe (21), and the air inlet cavity (211) is in communication with the filter pipe (41) and the delivery pipe (1). An air outlet cavity (212) is provided in the middle of the branch pipe (21). The clean air pipe (42) is in communication with the cavity of the filter pipe (41), and the other end of the clean air pipe (42) is in communication with the air outlet cavity (212). The air outlet cavity (212) and the exhaust pipe (24) are closed by controlling the closed regulating valve (23). The exhaust pipe (24) is in communication with the barrel-type filter part (44), and an exhaust valve is provided on the exhaust pipe (24).

5. The sulfur-containing waste gas purification and absorption device according to claim 1 is characterized in that: It also includes a temperature control module (3), which controls the molecular sieve temperature-variable adsorber (43) to adjust the temperature so that the barrel-type filter part (44) and the labyrinth filter plate (45) can perform adsorption and precipitation cycles.

6. A sulfur-containing waste gas purification and absorption device according to any one of claims 1 to 5, characterized in that: include: A: The gas enters the filter tube (41) through the air inlet cavity (211). After the gas particles are filtered by the filter sleeve (411), the impurities remain on the inner wall of the filter sleeve (411). The flue gas enters the clean gas pipe (42) through the outer cavity of the filter tube (41), and enters the gas outlet cavity (212). When the closed regulating valve (23) is opened, the gas enters the molecular sieve temperature-variable adsorber (43). The gas flow is subjected to a labyrinth treatment by the labyrinth filter plate (45), so that the flue gas is constantly in contact with and adsorbed by the molecular sieve during the flow. At the same time, the flue gas passes through the barrel filter portion (44), so that the flue gas enters the molecular sieve temperature-variable adsorber (43), and is discharged through the gas outlet pipe (431). After being filtered by the barrel filter portion (44) and the gas charging pipe (46), the sulfur in the gas is adsorbed in the molecular sieve. B: When the relative positions of the sliding dust exhaust pipe (413) and the filter tube (41) are fixed, the smoke rushes into the filter sleeve (411), and the filter sleeve (411) expands outward to increase the filtering area. When restoring, it is only necessary to pull the sliding dust exhaust pipe (413) to cause elastic deformation of the sliding rod (4131) and the filter sleeve keel (412). The filter sleeve (411) is quickly stretched and moves radially inward. The filter sleeve (411) hits the surface of the filter sleeve keel (412), and the dust on the inner wall of the filter sleeve (411) falls into the sliding dust exhaust pipe (413) and is discharged through the sliding dust exhaust pipe (413). This type of filtration is small in size, does not cause environmental pollution, and dust can also be collected in a directional manner; C: The gas first flows downward inside the barrel-type filter part (44) and passes through the labyrinth filter plate (45) for labyrinth treatment, so that the gas fully contacts and reacts with the barrel-type filter part (44) and the labyrinth filter plate (45). At the same time, the pressure inside the barrel-type filter part (44) increases, and the gas is discharged into the molecular sieve temperature-variable adsorber (43) through the barrel-type filter part (44). During the analysis process, the purge gas is injected through the charging pipe (46), the closed regulating valve (23) is closed, the exhaust pipe (24) is opened, and the molecular sieve temperature-variable adsorber (43) is heated through the temperature control module (3). After the barrel-type filter part (44) and the labyrinth filter plate (45) are heated, impurities are precipitated. The charging pipe (46) can purge the barrel-type filter part (44) and the labyrinth filter plate (45), thereby precipitating the impurities. After the outlet pipe (431) is closed, the purged impurities and the purge gas mixture are discharged through the exhaust pipe (24).

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