CN215975689U - Blast furnace gas dry-method desulfurization reaction tank - Google Patents
Blast furnace gas dry-method desulfurization reaction tank Download PDFInfo
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- CN215975689U CN215975689U CN202122275089.0U CN202122275089U CN215975689U CN 215975689 U CN215975689 U CN 215975689U CN 202122275089 U CN202122275089 U CN 202122275089U CN 215975689 U CN215975689 U CN 215975689U
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Abstract
The utility model belongs to the field of blast furnace gas purification, and discloses a dry-method desulfurization reaction tank for blast furnace gas. Comprises a cylinder body; the top end and the bottom end of the cylinder are respectively connected with an upper seal head and a lower seal head, the top of the upper seal head is provided with a desulfurizer inlet, the bottom of the lower seal head is provided with a desulfurizer outlet, a desulfurizer distribution cone is arranged below the desulfurizer inlet, the upper end of one side of the cylinder is provided with a gas inlet, the gas inlet is connected with a gas inlet pipe, the gas inlet pipe is introduced into the bottom of the reaction tank, and the bottom of the gas inlet pipe is provided with a gas distribution device; and a coal gas outlet is formed in one side of the upper end enclosure, and the coal gas outlet and the coal gas inlet are positioned on two sides of the reaction tank. The continuous operation of the blast furnace gas desulfurization device can be realized, namely, the reaction tank is a continuous moving bed type reactor, the gas continuously operates, and the desulfurizer automatically and continuously feeds and discharges.
Description
Technical Field
The utility model belongs to the field of blast furnace gas purification, and relates to a blast furnace gas dry-method desulfurization reaction tank.
Background
Blast furnace gas is a combustible gas which is a byproduct in the blast furnace smelting process, has large total gas amount, is one of main secondary energy sources in the steel industry, and comprises the main components of carbon monoxide, carbon dioxide, nitrogen, hydrogen and hydrocarbons, and also contains pollutants such as sulfur, dust and the like. When blast furnace gas is used as fuel, the sulfur in the gas is converted into sulfur dioxide (SO)2) Is discharged to the atmosphere along with the flue gas. The smoke emission of the steel industry in China executes the ultra-low emission standard, namely sulfur dioxide (SO)2) The treatment is the key point, therefore, the source desulfurization treatment is carried out on the blast furnace gas, SO that the SO in the flue gas discharged by a blast furnace gas user2The concentration reaches the requirement of ultralow emission, and the whole-process environment-friendly operation cost of the steel industry can be effectively reduced.
The traditional dry desulfurization tank can not realize automatic loading and unloading of the desulfurizer, and has the defects of high labor intensity and long time consumption of personnel during replacement after the desulfurizer is saturated.
Accordingly, those skilled in the art have been devoted to developing a dry desulfurization reaction tank for blast furnace gas to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the background technology, and provides a blast furnace gas dry desulphurization reaction tank which can realize the continuous operation of a blast furnace gas desulphurization device, namely, the reaction tank is a continuous moving bed type reactor, the gas continuously operates, and a desulfurizer also automatically and continuously feeds and discharges.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a blast furnace gas dry desulphurization reaction tank comprises a cylinder body; the top end and the bottom end of the cylinder are respectively connected with an upper seal head and a lower seal head, the top of the upper seal head is provided with a desulfurizer inlet, the bottom of the lower seal head is provided with a desulfurizer outlet, a desulfurizer distribution cone is arranged below the desulfurizer inlet, the upper end of one side of the cylinder is provided with a gas inlet, the gas inlet is connected with a gas inlet pipe, the gas inlet pipe is introduced into the bottom of the reaction tank, and the bottom of the gas inlet pipe is provided with a gas distribution device; and a coal gas outlet is formed in one side of the upper end enclosure, and the coal gas outlet and the coal gas inlet are positioned on two sides of the reaction tank.
The front end of the coal gas outlet is provided with a gas filtering device to prevent the desulfurizer from being brought out of the equipment by the coal gas.
The desulfurizer distribution cone is arranged inside the upper end enclosure and is a conical desulfurizer distribution cone.
Further, a discharging device is arranged below the reaction tank;
furthermore, a granular desulfurizer is filled in the reaction tank, enters the bottom of the reaction tank from the top of the reaction tank and is discharged, and the continuous flow of a desulfurizer bed layer can be realized under the action of a discharging device below the reaction tank. Blast furnace gas enters the bottom of the reaction tank from a gas inlet and a gas inlet pipe, can be uniformly distributed in a desulfurizer bed layer after passing through a gas distribution device (a primary gas distribution cone and a secondary gas distribution cone), and is contacted with a gas phase and a solid phase in a countercurrent manner, and the gas is discharged from a gas outlet at the top of the reaction tank after being desulfurized by the desulfurizer bed layer.
Further, the gas distribution device comprises 1 primary gas distribution cone and a plurality of secondary gas distribution cones, wherein the primary gas distribution cones and the secondary gas distribution cones are conical gas distributors with different diameters and heights.
Furthermore, a primary gas distribution cone is connected to the tail end of the gas inlet pipe, and a secondary gas distribution cone is arranged near the gas outlet end of the primary gas distribution cone and uniformly distributed in the same cross section.
The primary gas distribution cone and the secondary gas distribution cone have the functions of realizing the uniform distribution of gas in a desulfurizer bed layer, preventing the desulfurizer from entering the gas inlet pipe, and redistributing the desulfurizer by the secondary gas distribution cone, thereby ensuring the uniform blanking of the desulfurizer.
The reaction tank desulfurizer inlet lower side is equipped with toper desulfurizer distribution awl, can play the effect that makes the desulfurizer feed evenly distributed in the reaction tank, can play the effect of protection intake pipe again, directly falls on the intake pipe when preventing the desulfurizer feeding, reduces the gravity of the desulfurizer that the intake pipe bore, reduces the influence of rubbing and corroding of desulfurizer to the intake pipe.
The desulfurizing agent is discharged from the top of the reaction tank and enters the bottom of the reaction tank, the feeding and the discharging are automatically and continuously carried out, and the blast furnace gas enters the reaction tank and then is in countercurrent contact with the desulfurizing agent. The gas distribution cone and the desulfurizer distribution cone are arranged in the reaction tank, so that the gas-solid two phases in the reaction tank are uniformly distributed.
Compared with the prior art, the utility model has the beneficial effects that:
the filling amount of the granular desulfurizer in the reaction tank, namely the material level height of the reaction tank can be adjusted by a discharging device arranged at the bottom of the reaction tank. By adjusting the filling amount of the desulfurizer in the reaction tank, namely adjusting the height of the material level of the desulfurizer, the resistance drop of coal gas passing through a desulfurizer bed layer can be adjusted, and the fluctuation of the coal gas flow can be coped with. The scale of the device for treating the coal gas can be adjusted.
Drawings
The utility model is further illustrated with reference to the following figures and examples:
FIG. 1 is a structural diagram of a blast furnace gas dry desulfurization reaction tank according to the present invention.
In the figure, 1, a cylinder body, 2, a gas inlet, 3, a gas inlet pipe, 4, a gas outlet, 5, a desulfurizer inlet, 6, a desulfurizer outlet, 7, a desulfurizer distribution cone, 8, a primary gas distribution cone, 9, a secondary gas distribution cone, 10, an upper end enclosure, 11, a lower end enclosure and 12 are filter devices.
Detailed Description
The utility model is further described below with reference to the drawings attached to the specification, but the utility model is not limited to the following examples.
Example 1
A blast furnace gas dry desulphurization reaction tank, as shown in figure 1, comprising a cylinder body 1; the top end and the bottom end of the cylinder body 1 are respectively connected with an upper seal head 10 and a lower seal head 11, the top of the upper seal head 10 is provided with a desulfurizer inlet 5, the bottom of the lower seal head 11 is provided with a desulfurizer outlet 6, a desulfurizer distribution cone 7 is arranged below the desulfurizer inlet 5, the upper end of one side of the cylinder body 1 is provided with a gas inlet 2, the gas inlet 2 is connected with a gas inlet pipe 3, the gas inlet pipe 3 is communicated with the bottom of the reaction tank, and the bottom of the gas inlet pipe 3 is provided with a gas distribution device; and a coal gas outlet 4 is formed in one side of the upper end enclosure 10, and the coal gas outlet 4 and the coal gas inlet 2 are positioned on two sides of the reaction tank.
The front end of the coal gas outlet 4 is provided with a gas filtering device 12 to prevent the desulfurizer from being brought out of the equipment by the coal gas.
The desulfurizer distribution cone 7 is arranged inside the upper end enclosure 10, and the desulfurizer distribution cone 7 is a conical desulfurizer distribution cone.
Further, a discharging device is arranged below the reaction tank;
furthermore, a granular desulfurizer is filled in the reaction tank, enters the bottom of the reaction tank from the top of the reaction tank and is discharged, and the continuous flow of a desulfurizer bed layer can be realized under the action of a discharging device below the reaction tank.
Further, the gas distribution device comprises 1 primary gas distribution cone 8 and a plurality of secondary gas distribution cones 9, wherein the primary gas distribution cone 8 and the secondary gas distribution cones 9 are conical gas distributors with different diameters and heights.
Further, a primary gas distribution cone 8 is connected to the tail end of the gas inlet pipe 3, and secondary gas distribution cones 9 are arranged near the gas outlet end of the primary gas distribution cone 8 and are uniformly distributed in the same cross section.
As shown in FIG. 1, the desulfurizing agent in the reaction tank enters from the top desulfurizing agent inlet 5 and is uniformly distributed by the desulfurizing agent distribution cone 7 below the desulfurizing agent inlet 5. A continuous feeding device is arranged above the reaction tank, a variable-frequency rotary discharging device is arranged below the reaction tank, and the desulfurizer can continuously flow in the reaction tank barrel body 1 and is finally discharged from a bottom desulfurizer outlet 6. Blast furnace gas enters the reaction tank from a gas inlet 2 on the side surface of the cylinder body 1, is sent to the bottom of the reaction tank from a gas inlet pipe 3 arranged in the cylinder body 1, and is uniformly distributed in a desulfurizer bed layer after the action of 1 primary gas distribution cone 8 and a plurality of secondary gas distribution cones 9. The desulfurized gas is discharged from the device through a gas outlet 4 arranged at the top, the gas passes through a desulfurizer bed layer from bottom to top in the reaction tank, and simultaneously, the desulfurizer flows from top to bottom by means of gravity, and the gas phase and the solid phase are in countercurrent contact. The front end of the coal gas outlet 4 is provided with a filter device 12 to prevent the desulfurizer from being brought out of the reaction tank by the coal gas.
Although the utility model has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.
Claims (6)
1. A blast furnace gas dry desulphurization reaction tank is characterized by comprising a cylinder body (1); the top end and the bottom end of the cylinder (1) are respectively connected with an upper seal head (10) and a lower seal head (11), the top of the upper seal head (10) is provided with a desulfurizer inlet (5), the bottom of the lower seal head (11) is provided with a desulfurizer outlet (6), a desulfurizer distribution cone (7) is arranged below the desulfurizer inlet (5), the upper end of one side of the cylinder (1) is provided with a gas inlet (2), the gas inlet (2) is connected with an air inlet pipe (3), the air inlet pipe (3) is introduced into the bottom of the reaction tank, and the bottom of the air inlet pipe (3) is provided with a gas distribution device; and a coal gas outlet (4) is formed in one side of the upper end enclosure (10), and the coal gas outlet (4) and the coal gas inlet (2) are positioned on two sides of the reaction tank.
2. The blast furnace gas dry desulphurization reaction tank according to claim 1, characterized in that the gas filtering device (12) is arranged at the front end of the gas outlet (4).
3. The blast furnace gas dry desulphurization reaction tank according to claim 2, wherein the desulfurizer distribution cone (7) is disposed inside the upper head (10).
4. The blast furnace gas dry desulphurization reaction tank according to claim 2, wherein the gas distribution device comprises (1) a primary gas distribution cone (8) and a plurality of secondary gas distribution cones (9), and the primary gas distribution cone (8) and the secondary gas distribution cones (9) are conical gas distributors with different diameters and heights.
5. The blast furnace gas dry desulphurization reaction tank according to claim 4, characterized in that the primary gas distribution cones (8) are connected to the end of the gas inlet pipe (3), and the secondary gas distribution cones (9) are arranged near the gas outlet ends of the primary gas distribution cones (8) and are uniformly distributed in the same cross section.
6. The blast furnace gas dry desulphurization reaction tank according to claim 1, wherein a discharging device is arranged below the reaction tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122275089.0U CN215975689U (en) | 2021-09-18 | 2021-09-18 | Blast furnace gas dry-method desulfurization reaction tank |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122275089.0U CN215975689U (en) | 2021-09-18 | 2021-09-18 | Blast furnace gas dry-method desulfurization reaction tank |
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| CN215975689U true CN215975689U (en) | 2022-03-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115722003A (en) * | 2022-11-30 | 2023-03-03 | 阿拉善盟沪蒙能源实业有限公司 | Automatic gas filtering system |
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2021
- 2021-09-18 CN CN202122275089.0U patent/CN215975689U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115722003A (en) * | 2022-11-30 | 2023-03-03 | 阿拉善盟沪蒙能源实业有限公司 | Automatic gas filtering system |
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