Blast furnace gas desulfurization device

Abstract

The utility model discloses a blast furnace gas desulfurization device which comprises a desulfurization tower, a gas inlet is formed in the outer wall of one side of the desulfurization tower, a gas outlet is formed in the desulfurization tower, a dust removal assembly is fixedly connected to the gas inlet, a storage groove is formed in the lower side of a guide plate, and a liquid inlet and a liquid outlet are formed in the desulfurization tower. When the blast furnace gas desulfurization device provided by the utility model is used, dust is filtered through the filter pipe, then flows to the opposite end and enters the desulfurization tower through the gas inlet, the gas flow is dispersed to the position, close to the outer wall, of the desulfurization tower under the action of the grid baffle plate, and part of gas enters the storage tank during continuous upward flowing; according to the desulfurization tower, a part of gas flows obliquely downwards into the storage tank under the influence of the guide plate arranged on the desulfurization tower, and the stirring rod arranged in the storage tank rotates under the driving of the driving motor, so that the gas is in full contact with a hydrolysis catalyst in the storage tank, and the desulfurization effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of coal gas desulfurization, and particularly relates to a blast furnace gas desulfurization device. BACKGROUND

[0002] The forms of sulfur in blast furnace gas mainly include carbonyl sulfur and hydrogen sulfide, and a small amount of carbon disulfide, methyl mercaptan, ethyl mercaptan and other organic sulfur components in various forms, which will produce sulfur dioxide pollution emissions when combusted.

[0003] The application number: CN202221166031.0 a kind of blast furnace gas fine desulfurization hydrolysis device, by the storage hopper of additional cooperation upper stirring rod, catalyst can be agitated, make it and gas fully contact, accelerate hydrolysis reaction, improve desulfurization effect. But in the above application, coal gas cannot be preliminarily dedusted, and needs to be additionally provided with a pretreatment device, which increases additional cost, and only by stirring catalyst can not guarantee mixing effect, resulting in poor desulfurization effect.

[0004] Therefore, the above technical problems are solved to facilitate efficient desulfurization of blast furnace gas. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a blast furnace gas desulfurization device to solve the problems of needing to additionally provide a pretreatment device, increasing additional cost, and only being able to stir catalyst to guarantee mixing effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a blast furnace gas desulfurization device, comprising a desulfurization tower, an air inlet is formed in the outer wall of one side of the desulfurization tower, an air outlet is arranged on the desulfurization tower, a dust removal assembly is fixedly connected to the air inlet, a storage tank is arranged on the lower side of the deflector, a liquid inlet and a liquid outlet are arranged on the desulfurization tower.

[0007] The dust removal assembly comprises a shell, an inner tube and a filter tube, threads are arranged on the filter tube, threads are arranged on the inner wall of the inner tube and matched with the filter tube, the shell is fixedly installed on the outer wall of the inner tube, a heat preservation layer is arranged between the shell and the inner tube, one end of the inner tube penetrates the shell and is fixedly connected with the air inlet.

[0008] Preferably, a baffle is arranged on the air inlet, a deflector is arranged on the inner wall of the desulfurization tower, a connecting rod is arranged on the outer wall of the upper side of the storage tank, and the connecting rod is fixedly connected with the outer wall of the lower side of the deflector.

[0009] Preferably, stirring blades are arranged in the storage tank, and the stirring blades are rotatably installed in the storage tank.

[0010] Preferably, a water tank is arranged on the desulfurization tower, a heater is arranged on the inner wall of the water tank, a through hole is arranged on the outer wall of the water tank, and a steam tank is arranged on the outer wall of the water tank and is rotationally installed on the inner wall of the desulfurization tower.

[0011] Preferably, a steam port is arranged on the steam tank, a driving motor is arranged on the desulfurization tower, an extension rod is arranged on the output end of the driving motor, the extension rod penetrates through the water tank, and one end of the extension rod is fixedly connected with the stirring blade.

[0012] Preferably, a connecting block is arranged on the outer wall of the extension rod, and the connecting block is fixedly connected with the steam tank.

[0013] The technical effects and advantages of the present application are as follows:

[0014] In use, the blast furnace gas is first filtered to a certain extent through the filter pipe, then flows to the opposite end, and enters the inside of the desulfurization tower through the gas inlet, is dispersed to the position close to the outer wall of the desulfurization tower under the action of the baffle, and in the continuous upward flow, part of the gas enters the storage tank, and part of the gas flows to the storage tank in the obliquely downward direction under the influence of the guide plate arranged on the desulfurization tower, the stirring rod arranged in the storage tank is rotated under the driving of the driving motor, so that the gas is in full contact with the hydrolysis catalyst in the inside of the storage tank, and the water vapor in the water tank can be used to supplement the water vapor content in the inside of the desulfurization tank, so as to ensure that the hydrolysis catalyst solvent reacts with the organic sulfur in the coal gas, and the desulfurization effect is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a three-dimensional structure schematic view of the present application;

[0016] Fig. 2 It is a sectional three-dimensional structure schematic view of the present application;

[0017] Fig. 3 It is a sectional structure schematic view of the present application.

[0018] In the drawings: 1, desulfurization tower; 2, gas inlet; 3, gas outlet; 4, dust removal assembly; 5, storage tank; 6, liquid inlet; 7, liquid outlet; 8, shell; 9, inner tube; 10, filter pipe; 11, heat preservation layer; 12, baffle; 13, guide plate; 14, connecting rod; 15, stirring blade; 16, water tank; 17, heater; 18, through hole; 19, steam tank; 20, steam port; 21, driving motor; 22, extension rod; 23, connecting block. DETAILED DESCRIPTION

[0019] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts under the premise that no creative efforts are made, belong to the scope of protection of the present application.

[0020] The utility model provides a kind of blast furnace gas desulfurization device as shown in Figs. 1-3 The utility model discloses a kind of blast furnace gas desulfurization device as shown in It includes desulfurization tower 1, the outer wall of one side of desulfurization tower 1 is equipped with inlet 2, outlet 3 is provided on desulfurization tower 1, dust removal assembly 4 is fixedly connected on inlet 2, the downside of guide plate 13 is provided with storage groove 5, desulfurization tower 1 is provided with liquid inlet 6 and liquid outlet 7.Dust removal assembly 4 includes shell 8, inner tube 9 and filter tube 10, filter tube 10 is provided with screw thread, the inner wall of inner tube 9 is provided with the screw thread port matched with filter tube 10, shell 8 is fixedly installed on the outer wall of inner tube 9, the heat preservation layer 11 between shell 8 and inner tube 9 is provided, one end of inner tube 9 penetrates shell 8, and is fixedly connected with inlet 2.When using, blast furnace gas is first through dust removal assembly 4, the heat preservation layer 11 between shell 8 and inner tube 9 is provided for keeping temperature in pipe, filter tube 10 is provided at one end, dust is filtered to a certain extent by filter tube 10, then flow to opposite end, and enter the inside of desulfurization tower 1 by inlet 2, first dispersed airflow under the action of baffle 12 to the position close to the outer wall of desulfurization tower 1, and in continuous upward flow, part of gas enters storage groove 5, part of gas will flow to storage groove 5 in oblique lower side under the influence of guide plate 13 provided in desulfurization tower 1, the stirring rod provided in storage groove 5 will rotate under the drive of drive motor 21, so that gas and hydrolysis catalyst in the inside of storage groove 5 are fully contacted, so that blast furnace gas is desulfurized, and water tank 16 and heater 17 are provided on the inner wall of desulfurization tower 1, when needed, heater 17 can be started, water in water tank 16 is heated, water vapor is generated, and steam groove 19 is driven to rotate under the action of connecting rod 14 and connecting block 23, water vapor is sprayed to outside, to supplement the water vapor content in the inside of desulfurization groove, to ensure that hydrolysis catalyst solvent and organic sulfur in coal gas occur chemical reaction, guarantee desulfurization effect.

[0021] Specifically, baffle 12 is provided on inlet 2, guide plate 13 is provided on the inner wall of desulfurization tower 1, connecting rod 14 is provided on the outer wall of upside of storage groove 5, and connecting rod 14 is fixedly connected with the outer wall of downside of guide plate 13. Fig. 2As shown, the coal gas after the dust removal assembly 4 will enter the desulfurization tower 1 through the gas inlet 2, and the upper side of the port of the gas inlet 2 is provided with a baffle 12 in the shape of a circular truncated cone with the upper bottom smaller than the lower bottom. After the gas enters, it will flow along the side wall of the baffle 12 to the upper side to avoid directly entering the inside of the desulfurization tower 1 and flow along the inner wall of the desulfurization tower 1 until the upper port of the storage tank 5. The gas will be divided into two streams, one flowing to the direction of the storage tank 5 and the other flowing to the upper side along the bending direction of the guide plate 13. Finally, the gas will mix with the hydrolysis catalyst in the storage tank 5. In order to ensure the desulfurization effect, a stirring rod for accelerating the mixing is arranged in the storage tank 5.

[0022] Specifically, the desulfurization tower 1 is provided with a water tank 16, the inner wall of the water tank 16 is provided with a heater 17, the outer wall of the water tank 16 is provided with a through hole 18, the outer wall of the water tank 16 is provided with a steam tank 19, and the steam tank 19 is rotatably installed on the inner wall of the desulfurization tower 1. The steam tank 19 is provided with a steam port 20, the desulfurization tower 1 is provided with a driving motor 21, the output end of the driving motor 21 is provided with an extension rod 22, the extension rod 22 penetrates the water tank 16, and one end of the extension rod 22 is fixedly connected with the stirring blade 15. The outer wall of the extension rod 22 is provided with a connecting block 23, and the connecting block 23 is fixedly connected with the steam tank 19. For reference Fig. 3 As shown, the desulfurization tower 1 is provided with a driving motor 21 for driving the extension rod 22 to rotate. The connecting block 23 arranged on the extension rod 22 is connected with the steam tank 19, and one end of the connecting rod 14 is connected with the stirring blade 15. In this way, the driving motor 21 can drive the extension rod 22 to rotate, thereby driving the stirring blade 15 to rotate, accelerating the mixing reaction of the hydrolysis catalyst and the coal gas, desulfurizing the coal gas, and at the same time, the steam tank 19 is driven to rotate by the extension rod 22, so that the water vapor generated by the water tank 16 is distributed and dispersed in the inside of the desulfurization tower 1 to supplement the steam for the coal gas in the desulfurization tower 1, thereby ensuring the desulfurization effect. After a certain period of time, the coal gas in the desulfurization tower 1 can be replaced by controlling the gas inlet 2 and the gas outlet 3, the hydrolysis catalyst in the storage tank 5 can be supplemented through the liquid inlet 6, and the precipitate generated in the storage tank 5 can be discharged through the liquid outlet 7. The heater 17 heats the water in the water tank 16 by heating the resistance wire to generate water vapor for use, and the desulfurization tower 1 is provided with a water inlet pipe, one end of which extends into the water tank 16.

[0023] Valves are arranged on the gas inlet 2, the gas outlet 3, the liquid inlet 6, the liquid outlet 7 and the water inlet pipe, for controlling the input and output of the gas and the solution; one end of the filter pipe 10 is bolted to the desulfurization tower 1, the filter pipe 10 is provided with external threads, the inner wall of the inner pipe 9 is provided with internal threads, and a connecting port is arranged at the port of the filter pipe 10, which is connected to the output end of the blast furnace gas; after a certain period of use, the filter pipe 10 can be disassembled by the threads, so as to clean or replace the filter pipe 10; the desulfurization tower 1 is two layers, and has a hollow cavity between the inner wall and the outer wall, for isolating the gas between the inner wall and the outer wall, to form a temperature insulation effect.

[0024] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing detailed description of the present application, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A blast furnace gas desulfurization device, characterized in that: The system includes a desulfurization tower (1), an air inlet (2) is provided on the outer wall of one side of the desulfurization tower (1), an air outlet (3) is provided on the desulfurization tower (1), a dust removal component (4) is fixedly connected to the air inlet (2), a guide plate (13) is provided on the inner wall of the desulfurization tower (1), a storage tank (5) is provided on the lower side of the guide plate (13), and a liquid inlet (6) and a liquid outlet (7) are provided on the desulfurization tower (1). The dust removal assembly (4) includes an outer shell (8), an inner tube (9), and a filter tube (10). The filter tube (10) is provided with threads, and the inner wall of the inner tube (9) is provided with a threaded opening that mates with the filter tube (10). The outer shell (8) is fixedly installed on the outer wall of the inner tube (9). An insulation layer (11) is provided between the outer shell (8) and the inner tube (9). One end of the inner tube (9) passes through the outer shell (8) and is fixedly connected to the air inlet (2).

2. The blast furnace gas desulfurization device according to claim 1, characterized in that: A baffle plate (12) is provided on the air inlet (2), and a connecting rod (14) is provided on the outer wall of the upper side of the storage slot (5). The connecting rod (14) is fixedly connected to the outer wall of the lower side of the guide plate (13).

3. A blast furnace gas desulfurization device according to claim 2, characterized in that: The storage tank (5) is provided with a stirring blade (15), which is rotatably installed in the storage tank (5).

4. A blast furnace gas desulfurization device according to claim 3, characterized in that: The desulfurization tower (1) is provided with a water tank (16), the inner wall of the water tank (16) is provided with a heater (17), the outer wall of the water tank (16) is provided with a through hole (18), the outer wall of the water tank (16) is provided with a steam tank (19), and the steam tank (19) is rotatably installed on the inner wall of the desulfurization tower (1).

5. A blast furnace gas desulfurization device according to claim 4, characterized in that: The steam tank (19) is provided with a steam port (20), and the desulfurization tower (1) is provided with a drive motor (21). The output end of the drive motor (21) is provided with an extension rod (22). The extension rod (22) passes through the water tank (16), and one end of it is fixedly connected to the stirring blade (15).

6. A blast furnace gas desulfurization device according to claim 5, characterized in that: The outer wall of the extension rod (22) is provided with a connecting block (23), which is fixedly connected to the steam tank (19).

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