CN115779629A - Embedded blast furnace gas desulfurization tower and working method thereof - Google Patents
Embedded blast furnace gas desulfurization tower and working method thereof Download PDFInfo
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- CN115779629A CN115779629A CN202211492021.0A CN202211492021A CN115779629A CN 115779629 A CN115779629 A CN 115779629A CN 202211492021 A CN202211492021 A CN 202211492021A CN 115779629 A CN115779629 A CN 115779629A
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Abstract
The invention discloses an embedded blast furnace gas desulfurization tower and a working method thereof, belonging to the technical field of desulfurization towers. The tower comprises a tower body, wherein the whole tower body is arranged below the ground, the outer ring of the tower body is provided with a steel plate inner wall, the outer ring of the steel plate inner wall is provided with a concrete outer wall, the bottom of the steel plate inner wall is provided with an arc-shaped bottom plate, and the top of the steel plate inner wall is provided with a tower body top plate; the interior of the tower body is filled with a filling device in the tower, and the side surface of the tower body is also respectively connected with a coal gas inlet pipe and a coal gas outlet pipe. The invention can effectively reduce the floor area of the tower body by integrally arranging the tower body of the desulfurizing tower below the ground, is convenient for hoisting the filler device in the tower, has safe and reliable operation, can simplify a high-pressure fire-fighting pipeline, can adapt to the conditions of large blast furnace gas flow, low pressure, complex components and the like, and has higher operation value and economic benefit.
Description
Technical Field
The invention relates to the technical field of desulfurizing towers, in particular to an embedded blast furnace gas desulfurizing tower and a working method thereof.
Background
Aiming at the problem that SO2 exceeds the standard after the combustion of the byproduct blast furnace gas of the iron and steel enterprises, the tail end treatment mode is adopted in the past, namely the flue gas after the combustion of the blast furnace gas is desulfurized. With the adjustment of national industrial policies, the emission requirement on SO2 is greatly improved, and the tail end treatment cannot meet the emission requirement, SO that the iron and steel enterprises are required to realize the fine desulfurization of blast furnace gas from the source.
The blast furnace gas source fine desulfurization method mainly comprises two main types of dry desulfurization and wet desulfurization. Regardless of the desulfurization method, the blast furnace gas desulfurization tower is the main equipment. Because the industrial application of blast furnace gas fine desulfurization is just in the beginning stage, blast furnace gas desulfurization towers developed by various units are not perfect. The blast furnace gas has large flow, low pressure, complex components and high requirement on a blast furnace gas desulfurization tower.
The existing blast furnace gas desulfurization towers are all exposed blast tower-shaped structures, and have the following disadvantages in the using process: the tower body area is big, and the tower body height is high, and the filler device hoist and mount of inside not being convenient for, and it is comparatively loaded down with trivial details to overhaul the operation, and has danger.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention provides an embedded blast furnace gas desulfurization tower and a working method thereof, aiming at the defects and shortcomings in the prior art, the invention arranges the whole body of the desulfurization tower below the ground, can effectively reduce the floor area of the tower body, is convenient for the hoisting of a filler device in the tower, has safe and reliable operation, can simplify a high-pressure fire-fighting pipeline, can adapt to the conditions of large blast furnace gas flow, low pressure, complex components and the like, and has higher operation value and economic benefit.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the invention relates to an embedded blast furnace gas desulfurization tower, which comprises a tower body, wherein the whole tower body is arranged below the ground, the outer ring of the tower body is provided with an inner steel plate wall, the outer ring of the inner steel plate wall is provided with an outer concrete wall, the bottom of the inner steel plate wall is provided with an arc-shaped bottom plate, and the top of the inner steel plate wall is provided with a tower body top plate;
the central position of the tower body is provided with a central upright post, the interior of the tower body is filled with a filler device in the tower, and the side surface of the tower body is also respectively connected with a gas inlet pipe and a gas outlet pipe.
Further, arc bottom plate and steel sheet inner wall welding, the arc bottom plate is the arc drainage of being convenient for, has seted up a plurality of lower part outlet on the face of arc bottom plate.
Furthermore, a compensation material layer is filled between the concrete outer wall and the steel plate inner wall and is used for compensating the temperature deformation of the steel plate inner wall.
Furthermore, the tower body top plate is formed by assembling a plurality of fan-shaped plates, each fan-shaped plate can be disassembled, and the filler device in the tower can be conveniently and periodically hoisted and replaced.
Furthermore, the packing device in the tower is used for filling a desulfurizing agent.
Furthermore, when the tower body is in adsorption operation, blast furnace gas enters the bottom of the tower body from the gas inlet pipe, the gas inlet pipe is provided with the gas flow distributor, the gas uniformly passes through the tower inner packing device through the gas flow distributor, and a desulfurizer material is filled in the tower inner packing device and is used for adsorbing HS and COS in the gas.
Furthermore, when the tower body is in analysis operation, after the tower body operates for a period of time, the desulfurizer is adsorbed and saturated, the system is switched to a desorption state through the pipeline and the valve group, the gas outlet pipe is changed into a high-temperature gas inlet for analysis, the gas inlet pipe is changed into a desorption coarse gas outlet, the saturated desulfurizer recovers the adsorption capacity after high-temperature analysis, and after the desulfurizer operates for a long time, the desulfurizer is completely ineffective and cannot be desorbed and utilized, and then the desulfurizer needs to be replaced.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
the invention can effectively reduce the floor area of the tower body by integrally arranging the tower body of the desulfurizing tower below the ground, is convenient for hoisting the filler device in the tower, has safe and reliable operation, can simplify a high-pressure fire-fighting pipeline, can adapt to the conditions of large blast furnace gas flow, low pressure, complex components and the like, and has higher operation value and economic benefit.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is an analytic state diagram of a desulfurizing tower according to the present invention;
fig. 3 is a top plate structure of the tower of the present invention;
fig. 4 is a cross-sectional view of the tower of the present invention.
In the figure: 1. an outer wall of concrete; 2. the inner wall of the steel plate; 3. an arc-shaped bottom plate; 4. a central upright post; 5. a tower body top plate; 6. a lower water discharge port; 7. a packing device in the tower; 8. a gas inlet pipe; 81. an air flow distributor; 9. a gas outlet pipe; 10. a layer of compensating material; 11. a tower body.
Detailed Description
The invention is further described with reference to the following figures and examples:
example 1
As can be seen from fig. 1, the embedded blast furnace gas desulfurization tower of the embodiment comprises a tower body 11, wherein the tower body 11 is integrally arranged below the ground, so that a filler device can be conveniently hoisted, and the operation is safe and reliable, an inner steel plate wall 2 is arranged on the outer ring of the tower body 11, an outer concrete wall 1 is arranged on the outer ring of the inner steel plate wall 2, an arc-shaped bottom plate 3 is arranged at the bottom of the inner steel plate wall 2, and a tower body top plate 5 is arranged at the top of the inner steel plate wall 2;
the concrete outer wall 1 is used for resisting soil pressure, stabilizing the tower body 11 and playing a certain waterproof role.
The center of the tower body 11 is provided with a center upright post 4 which is a steel structure upright post and is used for supporting the tower internals, the interior of the tower body 11 is filled with a tower internal filling device 7, and the side surface of the tower body 11 is also respectively connected with a gas inlet pipe 8 and a gas outlet pipe 9.
The gas inlet pipe 8 is used for exhausting gas, and the gas is discharged out of the tower body 11 after being adsorbed and purified by the desulfurizer of the tower inner packing device 7.
As can be seen from fig. 4, a compensation material layer 10 is filled between the concrete outer wall 1 and the steel plate inner wall 2 for compensating the temperature deformation of the steel plate inner wall 2.
As can be seen from figure 3, the tower body top plate 5 is formed by assembling a plurality of sector plates, each sector plate can be disassembled, the filling device 7 in the tower for replacing and filling is convenient to regularly hoist, and the filling device 7 in the tower is used for filling the desulfurizer and is composed of detachable hoisting modules.
Example 2
As can be seen from fig. 1, in the operation method of the embedded blast furnace gas desulfurization tower of the present embodiment, when the tower body 11 performs adsorption operation, the blast furnace gas enters the bottom of the tower body 11 from the gas inlet pipe 8, the gas inlet pipe 8 is provided with the gas flow distributor 81, the gas passes through the gas flow distributor 81 and uniformly passes through the filling device 7 in the tower, and the filling device 7 in the tower is filled with a desulfurizer material for adsorbing H in the gas 2 S and COS.
As can be seen from fig. 2, when the tower body 11 is analyzed, when the tower body 11 runs for a period of time, the desulfurizer is adsorbed and saturated, the system is switched to a desorption state through a pipeline and a valve group, the gas outlet pipe 9 is changed into a high-temperature gas inlet for analysis, the gas inlet pipe 8 is changed into a desorption coarse gas outlet, the saturated desulfurizer recovers the adsorption capacity after high-temperature analysis, after the desulfurizer runs for a long time, the desulfurizer needs to be replaced after completely failing and being incapable of being desorbed and utilized, at the moment, the tower body top plate 5 is dismantled, and the packing device 7 in the tower is lifted out for replacement.
The invention integrally arranges the tower body 11 of the desulfurizing tower below the ground, can effectively reduce the floor area of the tower body, is convenient for hoisting the filler device 7 in the tower, has safe and reliable operation, can simplify a high-pressure fire-fighting pipeline, can adapt to the conditions of large blast furnace gas flow, low pressure, complex components and the like, and has higher operation value and economic benefit.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (7)
1. An embedded blast furnace gas desulfurization tower comprises a tower body (11), and is characterized in that: the tower body (11) is integrally arranged below the ground, the outer ring of the tower body (11) is provided with a steel plate inner wall (2), the outer ring of the steel plate inner wall (2) is provided with a concrete outer wall (1), the bottom of the steel plate inner wall (2) is provided with an arc-shaped bottom plate (3), and the top of the steel plate inner wall (2) is provided with a tower body top plate (5);
the tower is characterized in that a central upright post (4) is arranged at the center of the tower body (11), an inner tower filler device (7) is filled in the tower body (11), and a gas inlet pipe (8) and a gas outlet pipe (9) are respectively connected to the side surface of the tower body (11).
2. The embedded blast furnace gas desulfurization tower of claim 1, characterized in that: arc bottom plate (3) and steel sheet inner wall (2) welding, arc bottom plate (3) are the arc and are convenient for the drainage, a plurality of lower part outlet (6) have been seted up on the face of arc bottom plate (3).
3. The embedded blast furnace gas desulfurization tower of claim 1, characterized in that: and a compensation material layer (10) is filled between the concrete outer wall (1) and the steel plate inner wall (2) and is used for compensating the temperature deformation of the steel plate inner wall (2).
4. The embedded blast furnace gas desulfurization tower of claim 1, characterized in that: the tower body top plate (5) is formed by assembling a plurality of fan-shaped plates, each fan-shaped plate can be disassembled, and the filler device (7) in the tower is conveniently and periodically hoisted and replaced.
5. The embedded blast furnace gas desulfurization tower of claim 1, characterized in that: the packing device (7) in the tower is used for filling the desulfurizer.
6. The embedded blast furnace gas desulfurization tower of claim 1The working method is characterized in that: when the tower body (11) is in adsorption operation, blast furnace gas enters the bottom of the tower body (11) from the gas inlet pipe (8), the gas inlet pipe (8) is provided with the gas flow distributor (81), the gas uniformly passes through the tower inner packing device (7) through the gas flow distributor (81), and a desulfurizer material is arranged in the tower inner packing device (7) and is used for adsorbing H in the gas 2 S and COS.
7. The operating method of the embedded blast furnace gas desulfurization tower according to claim 1, characterized in that: when the tower body (11) is analyzed, when the tower body (11) runs for a period of time, the desulfurizer is adsorbed and saturated, the system is switched to a desorption state through a pipeline and a valve group, the gas outlet pipe (9) is changed into a high-temperature gas inlet for analysis, the gas inlet pipe (8) is changed into a desorption crude gas outlet, the saturated desulfurizer recovers the adsorption capacity after high-temperature analysis, and after the desulfurizer runs for a long time and is completely ineffective, and the desulfurizer needs to be replaced after desorption utilization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211492021.0A CN115779629A (en) | 2022-11-25 | 2022-11-25 | Embedded blast furnace gas desulfurization tower and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211492021.0A CN115779629A (en) | 2022-11-25 | 2022-11-25 | Embedded blast furnace gas desulfurization tower and working method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115779629A true CN115779629A (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211492021.0A Pending CN115779629A (en) | 2022-11-25 | 2022-11-25 | Embedded blast furnace gas desulfurization tower and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115779629A (en) |
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2022
- 2022-11-25 CN CN202211492021.0A patent/CN115779629A/en active Pending
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