Automatic dust separation control system for regenerated gas of wet desulphurization
By combining three-stage dust removal with a fluidized bed, the problem of dust accumulation clogging the blower pipe during wet desulfurization was solved, achieving stable system operation and water resource reuse, and improving the quality of the ammonium sulfate product.
Patent Information
- Application Number
- CN202520113428.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-17
AI Technical Summary
During wet desulfurization, dust impurities in the regenerated gas are not separated in time, resulting in dust deposition and sludge formation, which blocks the blower duct holes and affects the oxidation rate and the output of ammonium sulfate.
Three-stage dust removal is achieved by using first, second, and third ejector dust collectors, combined with a fluidized bed, centrifugal pump, dry-wet separator, and stirring device. The dust and liquid are fully mixed through gravity settling and air stirring. The mixed liquid is sent to the dry-wet separator for separation using a centrifugal pump and blower pipe. The residue is collected in the storage silo, realizing automatic dust separation.
This effectively prevents clogging of the blower duct holes, ensures stable system operation, improves the quality of ammonium sulfate products, and enables the reuse of water resources through the return pipe, thereby reducing water consumption.
Smart Images
Figure CN223760748U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of metallurgical coking, in particular to a wet desulfurization regenerated gas dust automatic separation control system. BACKGROUND
[0002] In the wet desulfurization process, the regenerated gas dust automatic separation control system is a key part, which is important in improving the desulfurization efficiency, reducing equipment corrosion and reducing energy consumption. Since the regenerated gas contains dust impurities, when the regenerated gas dust automatic separation control system is running, the dust will settle after being in contact with the spray water. If the dust is not discharged in time, a large amount of dust will form sludge in the system, which will eventually cause a large number of air holes in the blast pipe to be blocked, resulting in a low oxidation rate and directly affecting the production of ammonium sulfate products. CONTENT OF THE UTILITY MODEL
[0003] The purpose of the embodiment of the application is to provide a wet desulfurization regenerated gas dust automatic separation control system, which can continuously separate dust from the regenerated gas dust automatic separation control system, avoid a large number of air holes in the blast pipe being blocked, and ensure the stable operation of the system.
[0004] The embodiment of the application provides a wet desulfurization regenerated gas dust automatic separation control system, which adopts the following technical scheme:
[0005] A wet desulfurization regenerated gas dust automatic separation control system, comprising a first desulfurization tower, a first ejection dust collector, a second desulfurization tower, a second ejection dust collector, a third ejection dust collector, a flow state tank, a first liquid discharge pipe, a dry-wet separator, a storage bin, a backflow pipe and a stirring device, wherein the first desulfurization tower is provided with an air inlet pipe, the first ejection dust collector is used for dust removal of the gas in the first desulfurization tower, a conveying pipe is arranged between the first desulfurization tower and the second desulfurization tower, the second desulfurization tower is provided with an air outlet pipe, the second ejection dust collector and the third ejection dust collector are used for dust removal of the gas in the second desulfurization tower, the flow state tank is used for collecting the dust-containing liquid settled in the first desulfurization tower and the second desulfurization tower, the first liquid discharge pipe is arranged between the flow state tank and the dry-wet separator, a centrifugal pump is arranged on the first liquid discharge pipe, the storage bin is used for collecting the residue separated by the dry-wet separator, the backflow pipe is arranged between the dry-wet separator and the flow state tank, and the stirring device comprises a fluid pump and a blast pipe, the fluid pump is arranged outside the flow state tank, one end of the blast pipe is connected with the fluid pump, and the other end of the blast pipe penetrates through the flow state tank and extends into the flow state tank.
[0006] Preferably, a second liquid discharge pipe is arranged on the flow tank, a filter is connected to the second liquid discharge pipe, a first water supply pipe and a second water supply pipe are connected to the filter, a first circulating pump is arranged on the first water supply pipe, the first water supply pipe is connected to the first ejector dust collector, a second circulating pump is arranged on the second water supply pipe, and the second water supply pipe is connected to the second ejector dust collector and the third ejector dust collector.
[0007] Preferably, a first pressure gauge is arranged on the first water supply pipe, and a second pressure gauge is arranged on the second water supply pipe.
[0008] Preferably, a first liquid level meter is arranged in the flow tank, and a water supply pipe is arranged on the first desulfurization tower.
[0009] Preferably, an overflow pipe is connected to the flow tank, and a tail liquid pool is connected to the overflow pipe.
[0010] Preferably, a second liquid level meter is arranged in the tail liquid pool.
[0011] Preferably, a sulfur dioxide detector is arranged on the gas inlet pipe and the gas outlet pipe.
[0012] Preferably, a third pressure gauge is arranged on the first liquid discharge pipe.
[0013] Preferably, a vent pipe is arranged on the flow tank, and a vent valve is arranged on the vent pipe.
[0014] Compared with the prior art, the application has the following beneficial effects:
[0015] By arranging the first ejector dust collector, the second ejector dust collector and the third ejector dust collector, the first ejector dust collector performs primary dust removal on the regenerated gas, the second ejector dust collector performs fine dust removal on the regenerated gas, and the third ejector dust collector performs fine dust removal on the regenerated gas, so that the dust in the regenerated gas is effectively removed through three times of dust removal.
[0016] By setting the flow tank, centrifugal pump, dry-wet separator and stirring device, the dust in the regenerated gas contacts with the liquid in the first desulfurization tower and the second desulfurization tower, and then settles in the flow tank under the action of gravity, air is blown into the inside of the flow tank through the air blowing pipe under the action of the fluid pump, the air plays a stirring role, so that the dust in the flow tank is fully mixed with the liquid, and the mixed liquid in the flow tank enters the dry-wet separator through the second liquid discharge pipe under the action of the centrifugal pump, the residue after separation of the dry-wet separator falls into the inside of the storage bin under the action of gravity, so that the dust is continuously separated from the regenerated gas dust automatic separation control system, the problem of a large number of air holes of the air blowing pipe being blocked due to dust deposition is avoided, the stable operation of the system is ensured, the quality of the recovered ammonium sulfate product is improved, and the liquid after separation of the dry-wet separator is returned to the flow tank through the return pipe, so that the water resource can be reused, and the consumption of the water resource is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.
[0018] Figure 1 The structural schematic diagram of some embodiments of the present application.
[0019] The reference signs are as follows:
[0020] 1, first desulfurization tower; 2, first ejector dust collector; 3, second desulfurization tower; 4, second ejector dust collector; 5, third ejector dust collector; 6, flow tank; 7, first liquid discharge pipe; 8, dry-wet separator; 9, storage bin; 10, return pipe; 11, air inlet pipe; 12, conveying pipe; 13, exhaust pipe; 14, centrifugal pump; 15, second liquid discharge pipe; 16, filter; 17, first water supply pipe; 18, second water supply pipe; 19, first circulating pump; 20, second circulating pump; 21, first pressure gauge; 22, second pressure gauge; 23, first liquid level meter; 24, water supply pipe; 25, overflow pipe; 26, tail liquid pool; 27, second liquid level meter; 28, sulfur dioxide detector; 29, material level meter; 30, third pressure gauge; 31, vent pipe; 32, vent valve; 33, stirring device; 34, fluid pump; 35, air blowing pipe; 36, fourth pressure gauge. DETAILED DESCRIPTION
[0021] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.
[0022] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.
[0023] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0024] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships in which the products of the present application are usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third", etc. are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.
[0025] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0026] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "arrange", "mount", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.
[0027] Embodiments
[0028] AsFigure 1 As shown, the wet desulfurization regeneration gas dust automatic separation control system described in the embodiments of the application comprises a first desulfurization tower 1, a first ejection dust collector 2, a second desulfurization tower 3, a second ejection dust collector 4, a third ejection dust collector 5, a flow state tank 6, a first liquid discharge pipe 7, a dry-wet separator 8, a storage bin 9, a backflow pipe 10 and a stirring device 33. The first desulfurization tower 1 is provided with an air inlet pipe 11. The first ejection dust collector 2 is used for dust removal of the gas in the first desulfurization tower 1. The first desulfurization tower 1 is provided with a conveying pipe 12 between the first desulfurization tower 1 and the second desulfurization tower 3. The second desulfurization tower 3 is provided with an air outlet pipe 13. The second ejection dust collector 4 and the third ejection dust collector 5 are used for dust removal of the gas in the second desulfurization tower 3. The flow state tank 6 is used for collecting the dust-containing liquid that is precipitated in the first desulfurization tower 1 and the second desulfurization tower 3. The first liquid discharge pipe 7 is arranged between the flow state tank 6 and the dry-wet separator 8. The first liquid discharge pipe 7 is provided with a centrifugal pump 14. The storage bin 9 is used for collecting the residue after the dry-wet separator 8 separates. The backflow pipe 10 is arranged between the dry-wet separator 8 and the flow state tank 6. The stirring device 33 comprises a fluid pump 34 and an air blowing pipe 35. The fluid pump 34 is arranged outside the flow state tank 6. One end of the air blowing pipe 35 is connected with the fluid pump 34. The other end of the air blowing pipe 35 penetrates through the flow state tank 6 and extends into the flow state tank 6. The air blowing pipe 35 is provided with a plurality of air holes.
[0029] In use, the wet desulfurization regeneration gas is introduced into the first desulfurization tower 1 through the air inlet pipe 11. The first ejection dust collector 2 performs primary dust removal on the regeneration gas. The dust in the regeneration gas contacts the liquid droplets and then precipitates into the flow state tank 6 under the action of gravity. The gas after the primary dust removal enters the second desulfurization tower 3 through the conveying pipe 12. The second ejection dust collector 4 performs secondary dust removal on the regeneration gas. The third ejection dust collector 5 performs tertiary fine dust removal on the regeneration gas. The dust in the regeneration gas contacts the liquid droplets in the second desulfurization tower 3 and then precipitates into the flow state tank 6 under the action of gravity. The gas after the fine dust removal is discharged through the air outlet pipe 13.
[0030] The dust in the regeneration gas contacts the liquid in the first desulfurization tower 1 and the second desulfurization tower 3 and then precipitates into the flow state tank 6 under the action of gravity. Under the action of the fluid pump 34, air is blown into the flow state tank 6 through the air blowing pipe 35. The air plays a stirring role, so that the dust and the liquid in the flow state tank 6 are fully mixed. Under the action of the centrifugal pump 14, the mixed liquid in the flow state tank 6 continuously enters the dry-wet separator 8 through the second liquid discharge pipe 15. The residue after the dry-wet separator 8 separates falls into the storage bin 9 under the action of gravity, so that the dust is continuously separated from the wet desulfurization regeneration gas dust automatic separation control system, avoiding the problem that a large number of air holes of the air blowing pipe 35 are blocked due to dust deposition, ensuring stable operation of the system, improving the quality of the recovered ammonium sulfate product, and realizing the reuse of water resources, so as to reduce the consumption of water resources.
[0031] In the embodiment, the flow tank 6 is provided with a second liquid discharge pipe 15, the second liquid discharge pipe 15 is connected with a filter 16, the filter 16 is connected with a first water supply pipe 17 and a second water supply pipe 18, the first water supply pipe 17 is provided with a first circulating pump 19, the first water supply pipe 17 is connected with the first ejector dust collector 2, the second water supply pipe 18 is provided with a second circulating pump 20, the second water supply pipe 18 is connected with the second ejector dust collector 4 and the third ejector dust collector 5, and in use, under the action of the first circulating pump 19 and the second circulating pump 20, the liquid in the flow tank 6 is extracted through the second liquid discharge pipe 15, the filter 16 filters the liquid, and the purified process water is divided into the first water supply pipe 17 and the second water supply pipe 18 for reuse, so as to reduce the consumption of water resources.
[0032] In the embodiment, the first water supply pipe 17 is provided with a first pressure gauge 21 for detecting the fluid pressure in the first water supply pipe 17, and the second water supply pipe 18 is provided with a second pressure gauge 22 for detecting the fluid pressure in the second water supply pipe 18.
[0033] In the embodiment, the flow tank 6 is provided with a first liquid level meter 23 for detecting the liquid level in the flow tank 6, and the first desulfurization tower 1 is provided with a water supply pipe 24 for injecting water into the inside of the first desulfurization tower 1 when the liquid level in the flow tank 6 is lower than a set value, and the water enters the inside of the flow tank 6 under the action of gravity.
[0034] In the embodiment, the flow tank 6 is connected with an overflow pipe 25 for flowing out the excess liquid when the liquid level in the flow tank 6 is too high, and the overflow pipe 25 is connected with a tail liquid pool 26 for collecting the liquid overflowed from the overflow pipe 25.
[0035] In the embodiment, the tail liquid pool 26 is provided with a second liquid level meter 27 for detecting the liquid level in the tail liquid pool 26.
[0036] In the embodiment, the gas inlet pipe 11 and the gas outlet pipe 13 are both provided with a sulfur dioxide detector 28, the sulfur dioxide detector 28 on the gas inlet pipe 11 is used for detecting the concentration of sulfur dioxide in the regenerated gas inlet, and the sulfur dioxide detector 28 on the gas outlet pipe 13 is used for detecting the concentration of sulfur dioxide in the regenerated gas outlet, so as to provide a pre-warning when the concentration of sulfur dioxide in the regenerated gas outlet exceeds the standard, and avoid excessive emission of gas.
[0037] In the embodiment, the storage bin 9 is provided with a material level meter 29 for detecting the material level in the storage bin 9, so as to facilitate the workers to timely discharge the residues in the storage bin 9 when the storage amount of the storage bin 9 reaches a set value.
[0038] In this embodiment, the first drain pipe 7 is provided with a third pressure gauge 30 for detecting the pressure of the fluid inside the first drain pipe 7, and when the reading of the third pressure gauge 30 is abnormal, the staff is reminded to carry out maintenance.
[0039] In this embodiment, the flow tank 6 is provided with a vent pipe 31, and the vent pipe 31 is provided with a vent valve 32. After the equipment runs for a period of time, part of the dust will be deposited at the bottom of the flow tank 6, so the vent valve 32 needs to be opened regularly to discharge the part of the dust.
[0040] In this embodiment, the air blowing pipe 35 is provided with a fourth pressure gauge 36 for detecting the air pressure inside the air blowing pipe 35.
[0041] The above is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A wet desulphurization regeneration gas dust automatic separation control system, characterized in that: The application relates to a desulfurization device, which comprises a first desulfurization tower, a first ejector dust collector, a second desulfurization tower, a second ejector dust collector, a third ejector dust collector, a flow state tank, a first liquid discharge pipe, a dry-wet separator, a storage bin, a backflow pipe and a stirring device, a gas inlet pipe is arranged on the first desulfurization tower, the first ejector dust collector is used for dust removal of gas in the first desulfurization tower, a conveying pipe is arranged between the first desulfurization tower and the second desulfurization tower, a gas outlet pipe is arranged on the second desulfurization tower, the second ejector dust collector and the third ejector dust collector are used for dust removal of gas in the second desulfurization tower, the flow state tank is used for collecting dust-containing liquid which is precipitated in the first desulfurization tower and the second desulfurization tower, the first liquid discharge pipe is arranged between the flow state tank and the dry-wet separator, a centrifugal pump is arranged on the first liquid discharge pipe, the storage bin is used for collecting residues after separation of the dry-wet separator, the backflow pipe is arranged between the dry-wet separator and the flow state tank, the stirring device comprises a fluid pump and an air blowing pipe, the fluid pump is arranged outside the flow state tank, one end of the air blowing pipe is connected with the fluid pump, and the other end of the air blowing pipe penetrates through the flow state tank and extends into the flow state tank.
2. The wet desulphurization regeneration gas dust automatic separation control system according to claim 1, characterized in that: A second liquid discharge pipe is arranged on the flow state tank, a filter is connected with the second liquid discharge pipe, a first water supply pipe and a second water supply pipe are connected with the filter, a first circulating pump is arranged on the first water supply pipe, the first water supply pipe is connected with the first ejector dust collector, a second circulating pump is arranged on the second water supply pipe, and the second water supply pipe is connected with the second ejector dust collector and the third ejector dust collector.
3. The wet desulphurization regeneration gas dust automatic separation control system according to claim 2, characterized in that: A first pressure gauge is arranged on the first water supply pipe, and a second pressure gauge is arranged on the second water supply pipe.
4. The wet desulphurization regeneration gas dust automatic separation control system according to claim 2, characterized in that: A first liquid level meter is arranged in the flow state tank, and a water supplement pipe is arranged on the first desulfurization tower.
5. The wet desulphurization regeneration gas dust automatic separation control system according to claim 1, characterized in that: The flow state tank is connected with an overflow pipe, and the overflow pipe is connected with a tail liquid pool.
6. The wet desulphurization regeneration gas dust automatic separation control system according to claim 5, characterized in that: A second liquid level meter is arranged in the tail liquid pool.
7. The wet desulphurization regeneration gas dust automatic separation control system according to claim 1, characterized in that: Sulfur dioxide detectors are arranged on the gas inlet pipe and the gas outlet pipe.
8. The wet desulphurization regeneration gas dust automatic separation control system according to claim 1, characterized in that: A material level meter is arranged in the storage bin.
9. The wet desulphurization regeneration gas dust automatic separation control system according to claim 1, characterized in that: A third pressure gauge is arranged on the first liquid discharge pipe.
10. The wet desulphurization regeneration gas dust automatic separation control system according to claim 1, characterized in that: A vent pipe is arranged on the flow state tank, and a vent valve is arranged on the vent pipe.