Discharging tank gas pressure equalizing pipeline drainer equipment

Abstract

The utility model relates to blanking tank gas pressure equalizing pipeline drainer equipment, and relates to the technical field of gas drainage equipment. The device comprises a drainer, a gas inlet of the drainer is communicated with a gas pressure equalizing pipe, a gas outlet of the drainer is communicated with a gas inlet pipe, the end, away from the drainer, of the gas inlet pipe is communicated with a discharging tank, a first guide plate is arranged on the inner wall of the end, close to the gas pressure equalizing pipe, of the drainer, and the first guide plate is connected with the top wall of the drainer. A second flow guide plate is arranged on the inner wall of the end, close to the air inlet pipe, of the drainer, the second flow guide plate is connected with the bottom wall of the drainer, a drainage hole is formed in the second flow guide plate in a penetrating mode in the thickness direction, the bottom wall of the drainer is communicated with a blow-off pipe, and the communication position of the blow-off pipe and the drainer is located on the side, close to the air inlet pipe, of the second flow guide plate. The method has the effect of reducing the water content of the pressure-equalizing coal gas so as to improve the adverse effect of the water in the coal gas on the production of the blast furnace.

Description

Technical Field

[0001] The present application relates to the technical field of gas drainage equipment, and in particular to a gas pressure equalizing pipeline drainer device for a discharge tank. Background Art

[0002] During blast furnace production, raw materials for the blast furnace must first be transported to the top of the furnace via a belt and enter the receiving hopper above the upper sealing valve. The upper sealing valve and the loading gate are opened, and the raw materials enter the discharge tank. After closing the upper sealing valve and the loading gate, the gas pressure equalizing valve is opened to pressurize the inside of the discharge tank. When the gas is added to a certain pressure, nitrogen is used for secondary pressure replenishment. When the pressure in the discharge tank is greater than the pressure in the blast furnace, the lower sealing valve and the discharge gate are opened, and the raw materials enter the furnace and are distributed through the distribution chute to complete the transportation of the raw materials.

[0003] When the gas pressure is equalized in the discharge tank, the equalized gas used is produced after blast furnace smelting. After gravity dust removal and bag dust removal, it enters the clean gas pipeline for reuse. However, the gas contains a lot of water at low temperatures. This will increase the moisture content in the raw materials when the gas is pressurized in the discharge tank, which is not conducive to blast furnace smelting. Secondly, the high water content of the gas will cause material accumulation and corrosion to equipment such as gas pipelines and discharge tanks, resulting in equipment aging and raw material weighing errors, reducing the life of the equipment, which is not conducive to the normal production of the blast furnace and increases the workload of production and maintenance personnel. Therefore, it needs to be improved. Utility Model Content

[0004] In order to reduce the water content of the pressure-equalizing coal gas, thereby improving the adverse effects of the water content in the coal gas on blast furnace production, the present application provides a discharge tank coal gas pressure-equalizing pipeline drainer device.

[0005] The present application provides a discharge tank gas pressure equalizing pipeline drain device adopts the following technical solution:

[0006] A gas pressure-equalizing pipe drainer device for a material tank, comprising a drainer, wherein an air inlet of the drainer is connected to a gas pressure-equalizing pipe, an air outlet of the drainer is connected to an air inlet pipe, an end of the air inlet pipe facing away from the drainer is connected to the material tank, a first guide plate is provided on an inner wall of an end of the drainer close to the gas pressure-equalizing pipe, the first guide plate is connected to a top wall of the drainer, a second guide plate is provided on an inner wall of an end of the drainer close to the air inlet pipe, the second guide plate is connected to a bottom wall of the drainer, a drainage hole is formed through the second guide plate in a thickness direction, a sewage pipe is connected to the bottom wall of the drainer, and the connection between the sewage pipe and the drainer is located on a side of the second guide plate close to the air inlet pipe.

[0007] By adopting the above technical solution, the coal gas enters the drainer from the gas equalizing pressure pipe. Since the gas inlet point is high and the gas outlet point is low, the gas direction will be changed and the gas flow rate will be reduced after the coal gas hits the guide plate, so that the coal gas will pass through the first guide plate and the second guide plate in a W shape and finally enter the air inlet pipe. After the gas flow rate is reduced, the moisture in the coal gas is easily affected by gravity and finally falls to the bottom of the drainer, and is discharged through the drainage hole, reducing the moisture in the equalized pressure gas, thereby effectively reducing the adverse effects of moisture on equipment such as the discharge tank, and improving safety.

[0008] Optionally, the drainer is a circular pipe, the first guide plate and the second guide plate are both semicircular plates, and the arc surfaces of the first guide plate and the second guide plate are in contact with the inner wall of the drainer.

[0009] By adopting the above technical solution, the drainer adopts a circular pipe, so that the water and dust separated from the coal gas can be gathered at the arc at the bottom of the drainer, thereby facilitating the discharge of water and dust, and having high practicality.

[0010] Optionally, the drainage hole is opened at the connection between the second guide plate and the inner wall of the drainer, and the drainage hole is located at the arc top of the second guide plate.

[0011] By adopting the above technical solution, the water and dust separated from the coal gas will eventually fall into the arc at the bottom of the drainer. The drainage hole is opened here to facilitate the discharge of water and dust, effectively improving the phenomenon of water and dust accumulation in the drainer, improving the water and dust removal efficiency, and reducing the cleaning frequency.

[0012] Optionally, the drainer is installed at an angle of 15° to the horizontal ground.

[0013] By adopting the above technical solution, the installation angle is set to 15° to facilitate the accumulation of water and dust in the drainer, so that they can be quickly discharged through the drainage hole, thereby improving the water and dust removal efficiency.

[0014] Optionally, a sewage valve is provided on the sewage pipe.

[0015] By adopting the above technical solution, a drain valve is provided to open and close the drain pipe, thereby closing the drain pipe when there is a small amount of water and dust to prevent gas leakage from causing harm to the human body.

[0016] Optionally, a flange blind plate is provided at one end of the sewage pipe away from the drainer, and a drain pipe is provided on the side wall of the sewage pipe.

[0017] By adopting the above technical solution, setting the flange blind plate and the drain pipe can realize the diversion of dust precipitation and water. The accumulated water in the drain pipe can be discharged through the drain pipe, and the dust settled on the surface of the flange blind plate and the inner wall of the drain pipe can be cleaned by removing the flange blind plate, which is very convenient.

[0018] Optionally, a manual ball valve and an electric drain valve are provided on the drain pipe.

[0019] By adopting the above technical solution, a manual ball valve and an electric drain valve are provided to open and close the drain pipe. When the amount of water accumulated in the sewage pipe is small, the drain pipe is closed to prevent gas leakage and improve safety.

[0020] Optionally, the drainer, the first guide plate, the second guide plate and the sewage pipe are all made of stainless steel.

[0021] By adopting the above technical solution, the use of stainless steel can reduce the corrosion of moisture and other dust in the gas to various components, thereby protecting the structural safety of various components and extending their service life.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The gas drainer installed at the connection between the gas pressure equalizing pipeline and the discharge tank can reduce the moisture content of the pressure equalizing gas entering the discharge tank, reduce the moisture content of the blast furnace raw materials, and eliminate the adverse effects of moisture in the gas on blast furnace production;

[0024] 2. Regularly draining and cleaning the pressure-equalizing gas pipeline can reduce dust accumulation in the feed tank due to high moisture content, leading to weighing errors, improve the accuracy of the feed tank weighing equipment, reduce the workload of maintenance operators, and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a gas pressure equalizing pipeline drainer device for a discharge tank in an embodiment of the present application.

[0026] Figure 2 It is the front view of the drainer in the embodiment of the present application.

[0027] Figure 3 It is a side view of the drainer in the embodiment of the present application.

[0028] Explanation of the reference numerals in the accompanying drawings: 1. discharge tank; 2. drainer; 3. gas pressure equalizing pipe; 4. air inlet pipe; 5. first guide plate; 6. second guide plate; 61. drain hole; 7. drain pipe; 71. drain valve; 72. flange blind plate; 8. drain pipe; 81. manual ball valve; 82. electric drain valve. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-3 This application is described in further detail.

[0030] The present application embodiment discloses a gas pressure equalizing pipeline drain device for a feed tank. Figure 1, Figure 2 and Figure 3 , including a drainer 2, the air inlet end of the drainer 2 is connected to a gas equalizing pressure pipe 3 by welding. In this embodiment, the diameter of the gas equalizing pressure pipe 3 is 400 mm, the drainer 2 is a circular pipe with a diameter of 800 mm, and the air outlet end of the drainer 2 is connected to an air inlet pipe 4 by welding. The end of the air inlet pipe 4 away from the drainer 2 is connected to the outer wall of the top of the vertically arranged discharge tank 1 by welding. The connecting parts of the gas equalizing pressure pipe 3, the air inlet pipe 4 and the drainer 2 are welded and sealed with circular steel plates. The steel plates are provided with openings with the same inner diameters as the gas equalizing pressure pipe 3 and the air inlet pipe 4 as air inlets and outlets; the drainer 2 is tilted as a whole, and its installation angle with the horizontal ground is 15°, which is convenient for collecting moisture and dust in the gas.

[0031] Reference Figure 1 and Figure 3 A first guide plate 5 is provided on the inner wall of one end of the drainer 2 close to the gas equalizing pipe 3. The first guide plate 5 is a semicircular steel plate with a thickness of 10 mm. The arc surface of the first guide plate 5 is connected to the inner wall of the top end of the drainer 2 by welding; a second guide plate 6 is provided on the inner wall of one end of the drainer 2 close to the air inlet pipe 4. The second guide plate 6 is a semicircular steel plate with a thickness of 10 mm. The arc surface of the second guide plate 6 is connected to the inner wall of the bottom end of the drainer 2 by welding. After the gas enters the drainer 2, due to the high gas inlet point and the low gas outlet point, the gas decelerates after impacting the first guide plate 5, and passes through the first guide plate 5 and the second guide plate 6 in a W shape in sequence. In this process, the moisture in the gas will flow along the guide plate and finally deposited at the arc at the bottom of the drainer 2; a drainage hole 61 is opened at the top of the arc of the second guide plate 6 along the thickness direction to discharge the moisture and dust deposited at the arc at the bottom of the drainer 2.

[0032] Reference Figure 1 The bottom wall of the drainer 2 is vertically connected with a drain pipe 7 by welding. The connection between the drain pipe 7 and the drainer 2 is located on the side of the second guide plate 6 close to the air inlet pipe 4. A drain valve 71 is provided on the drain pipe 7 to control the discharge of moisture and dust, and at the same time, it plays a role in opening and closing the drain pipe 7 to prevent gas leakage; a flange blind plate 72 is provided at the bottom end of the drain pipe 7, and a drain pipe 8 is connected to the side wall by welding. A manual ball valve 81 and an electric drain valve 82 are provided on the drain pipe 8 to discharge the accumulated water in the drain pipe 7. When cleaning the pipeline, you only need to close the manual ball valve 81 and the electric drain valve 82, and remove the blind plate to perform the cleaning operation.

[0033] In this embodiment, the drainer 2, the first guide plate 5, the second guide plate 6 and the drain valve 71 are all made of stainless steel to prevent erosion by moisture and dust in the gas, thereby extending the service life.

[0034] The implementation principle of a gas pressure-equalizing pipeline drainer device for a material tank in an embodiment of the present application is as follows: the pressure-equalizing gas enters the drainer 2 through the gas pressure-equalizing pipe 3. Since the installation angle of the drainer 2 to the horizontal ground is 15°, the gas inlet point is high and the gas outlet point is low. After the gas hits the guide plate, the gas direction will be changed and the gas flow rate will be reduced, so that the gas will pass through the first guide plate 5 and the second guide plate 6 in a W shape and finally enter the air inlet pipe 4. After the gas flow rate is reduced, the moisture and dust in the gas will be easily affected by gravity and finally fall on the arc at the bottom of the drainer 2, and further enter the drain valve 71 through the drainage hole 61. The moisture and dust are discharged separately by the drain valve 71, the manual ball valve 81, and the electric drain valve 82, thereby reducing the moisture contained in the pressure-equalizing gas entering the material tank 1, reducing the moisture content of the blast furnace raw materials, and eliminating the adverse effects of moisture in the gas on blast furnace production.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A gas pressure equalizing pipeline drain device for a feed tank, characterized in that: The invention comprises a drainer (2), wherein the air inlet of the drainer (2) is connected to a gas pressure equalizing pipe (3), the air outlet of the drainer (2) is connected to an air inlet pipe (4), the end of the air inlet pipe (4) facing away from the drainer (2) is connected to a discharge tank (1), a first guide plate (5) is arranged on the inner wall of one end of the drainer (2) close to the gas pressure equalizing pipe (3), the first guide plate (5) is connected to the top wall of the drainer (2), a second guide plate (6) is arranged on the inner wall of one end of the drainer (2) close to the air inlet pipe (4), the second guide plate (6) is connected to the bottom wall of the drainer (2), a drainage hole (61) is opened through the second guide plate (6) along the thickness direction, the bottom wall of the drainer (2) is connected to a sewage pipe (7), and the connection point between the sewage pipe (7) and the drainer (2) is located on the side of the second guide plate (6) close to the air inlet pipe (4).

2. A gas pressure equalizing pipeline drain device for a feed tank according to claim 1, characterized in that: The drainer (2) is a circular pipe, the first guide plate (5) and the second guide plate (6) are both semicircular plates, and the arc surfaces of the first guide plate (5) and the second guide plate (6) are respectively fitted with the inner wall of the drainer (2).

3. A discharge tank gas pressure equalizing pipeline drain device according to claim 2, characterized in that: The drainage hole (61) is provided at the connection between the second guide plate (6) and the inner wall of the drainer (2), and the drainage hole (61) is located at the arc top of the second guide plate (6).

4. A discharge tank gas pressure equalizing pipeline drain device according to claim 1, characterized in that: The installation angle of the drainer (2) to the horizontal ground is 15°.

5. A gas pressure equalizing pipeline drain device for a feed tank according to claim 1, characterized in that: The sewage pipe (7) is provided with a sewage valve (71).

6. A discharge tank gas pressure equalizing pipeline drain device according to claim 1, characterized in that: A flange blind plate (72) is provided at one end of the sewage pipe (7) away from the drainer (2), and a drainage pipe (8) is provided on the side wall of the sewage pipe (7).

7. A discharge tank gas pressure equalizing pipeline drain device according to claim 6, characterized in that: The drainage pipe (8) is provided with a manual ball valve (81) and an electric drainage valve (82).

8. The gas pressure equalizing pipeline drain device for a feed tank according to claim 1, characterized in that: The drainer (2), the first guide plate (5), the second guide plate (6) and the sewage pipe (7) are all made of stainless steel.

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