Steelmaking converter gas recycling and drying device

Abstract

The utility model relates to the technical field of converter gas drying devices, and mainly discloses a steelmaking converter gas recycling and drying device which comprises a tank body, supporting legs and a gas inlet pipe, the supporting legs are arranged at the bottom of the tank body, the interior of the tank body is divided into a first cavity and a second cavity by a separation plate, and the gas inlet pipe is arranged at the top of the tank body. A fixing seat is arranged at the top of a drainage pipe and a gas inlet pipe at the bottom of the first cavity, converter gas pipelines communicate with the two sides of the fixing seat, a first filter plate is arranged in the fixing seat, a through exhaust pipeline is arranged on a separation plate, a first water removal plate is arranged at the gas inlet end of the exhaust pipeline, and a gas heating and filtering mechanism is arranged in the second cavity. The gas outlet end of the exhaust pipeline is located on one side of the gas heating and filtering mechanism, a gas conveying pipe is arranged on the portion, on the other side of the gas heating and filtering mechanism, in the second cavity, of the tank body, valves are arranged on the drainage pipe and the gas conveying pipe, and a water spraying and cleaning mechanism is further arranged at the top of the first cavity. The device is convenient to use, particulate matters in the coal gas can be filtered, moisture in the coal gas can be removed, and the quality of the converter coal gas is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of converter gas drying devices, in particular to a steelmaking converter gas recovery and drying device. Background Art

[0002] The steelmaking converter is a steelmaking equipment, which is mainly used to convert molten iron into molten steel. The advantage of the steelmaking converter is that it has high production efficiency and can quickly convert molten iron into molten steel. Since the main raw material of the steelmaking converter is molten iron, the temperature of the molten iron is very high. During the steelmaking process, the carbon and other impurities in the molten iron will react with oxygen to generate gases such as carbon monoxide and carbon dioxide. These gases are called converter gas, which needs to be recovered.

[0003] However, it is difficult for traditional gas recovery and drying devices to filter some particulate matter in the gas. If the filtration is not good, it is very easy for particulate matter to accumulate in the gas transmission pipeline and equipment, causing blockage of the gas transmission pipeline, affecting the normal supply and use of gas, and the particulate matter may cause wear and damage to the equipment, shortening the service life of the equipment.

[0004] Chinese utility model patent CN208617919U discloses a steelmaking converter gas recovery and drying device. Although the device can collect and discharge water in the converter gas and collect and transport the converter gas, the above device has the following problems: 1. The gas pipeline is located on the water storage tank and is connected to the inside of the water storage tank. Although the water removal hood prevents moisture from entering the gas pipeline, the isolation effect of the water removal hood is limited, and the water removal hood may be damaged. In this case, moisture will still enter the converter gas pipeline through the gas pipeline and affect the quality of the converter gas; 2. Filtering is performed through the water removal plate, which is mainly for filtering water. The filtration of particulate matter in the converter gas is limited. Even if the water removal plate can filter certain particulate matter, the particulate sediment will still enter the water storage tank and mix with the converter gas after passing through the water delivery valve. This will cause particulate matter to still exist in the converter gas discharged through the gas pipeline, which will also affect the quality of the converter gas.

[0005] Therefore, it is necessary to provide a new steelmaking converter gas recovery and drying device to solve the above technical problems. Utility Model Content

[0006] The utility model aims to provide a steelmaking converter gas recovery and drying device, which is easy to use, can filter particulate matter in the gas, can remove moisture in the gas, and improve the quality of the converter gas.

[0007] To achieve the above-mentioned purpose, the technical solution of the utility model is a steelmaking converter gas recovery and drying device, comprising a tank body, support legs and an air inlet pipe, wherein the support legs are arranged at the bottom of the tank body, a horizontal isolation plate is arranged inside the tank body, and the isolation plate isolates the inside of the tank body into a first chamber and a second chamber, the air inlet pipe is arranged at the top of the tank body and communicates with the first chamber inside the tank body, a drain pipe communicating with the inside of the first chamber is arranged on the tank body at the bottom of the first chamber, a fixing seat is arranged on the top of the air inlet pipe, and both sides of the fixing seat are connected There is a converter gas pipeline, and a first filter plate is arranged in the fixed seat, a through exhaust pipeline is arranged on the isolation plate, a first dewatering plate is arranged at the air inlet end of the exhaust pipeline, a gas heating and filtering mechanism is arranged in the second chamber, the air outlet end of the exhaust pipeline is located on one side of the gas heating and filtering mechanism in the second chamber, a gas pipe connected to the second chamber is arranged on the tank body on the other side of the gas heating and filtering mechanism in the second chamber, valves are arranged on the drain pipe and the gas pipe, and a water sprinkling and cleaning mechanism is also arranged on the top of the first chamber.

[0008] Through the above technical scheme, the coal gas with particulate matter and moisture in the converter gas pipeline enters the first chamber from the air inlet pipe, the particulate matter is blocked by the first filter plate and falls into the first chamber, and the liquid sprayed by the water sprinkling and cleaning mechanism located above the first chamber causes the dust particles to attach and settle to form water sediment, thereby preventing the particulate matter in the coal gas from entering the gas transmission pipe, and the water sediment can be discharged through the drain pipe; the coal gas with moisture and some particulate matter enters the second chamber from the exhaust pipe from the first chamber, part of the moisture is absorbed by the first dewatering plate, and then the gas heating and filtering mechanism is used to further filter the particulate matter and adsorb the moisture, and then the moisture is evaporated by heating. The treated coal gas does not contain particulate matter and moisture, has a high quality, and can be directly introduced into the gas transmission pipeline for supply and use.

[0009] A further solution of the utility model is that the gas heating and filtering mechanism includes a heater arranged at the bottom of the tank body, a heating plate electrically connected to the heater and arranged in the middle of the second chamber, and the heating plate can pass coal gas, a second filter plate and a second water removal plate arranged inside the second chamber.

[0010] A further solution of the utility model is that two of the second filter plates and the second water removal plates are provided, the two second water removal plates are symmetrically installed along both sides of the heating plate, the two second filter plates are symmetrically installed along both sides of the heating plate, and the two second filter plates are located outside the two second water removal plates. Through the above technical solution, the coal gas discharged through the gas outlet end of the exhaust pipe successively passes through the first second filter plate, the first second water removal plate, the heating plate, the second second water removal plate, and the second second filter plate in the second chamber, and then is discharged from the gas supply pipe, and is initially filtered and water absorbed by the first second filter plate and the first second water removal plate, and is heated by the heating plate, and then further water absorbed and filtered by the second second water removal plate and the second second filter plate. After multiple layers of filtration and water absorption, the discharged coal gas is further purified and dried, and the discharged coal gas quality is better.

[0011] A further solution of the utility model is that the water sprinkling cleaning mechanism includes a water injection pipe arranged on the top of the outer side of the tank body of the first chamber, and a water sprinkling pipe arranged above the interior of the first chamber, the water injection pipe is connected to the water sprinkling pipe, and a plurality of water sprinkler nozzles are arranged on the water sprinkling pipe.

[0012] A further solution of the utility model is that the watering pipe is annular, and a plurality of the watering nozzles are evenly distributed below the watering pipe, so that the watering nozzles evenly spray liquid into the first chamber to settle the particles.

[0013] A further solution of the utility model is that four supporting legs are provided, and anti-slip pads are provided at the bottoms of the four supporting legs.

[0014] A further solution of the utility model is that the lower section of the exhaust pipe is a straight pipe, the lower section of the exhaust pipe passes through the isolation plate, the upper section of the exhaust pipe is a curved pipe, and the air inlet end of the curved pipe of the upper section of the exhaust pipe is vertically downward.

[0015] A further solution of the utility model is that the second filter plate, the second water removal plate and the heating plate are all square, and both sides of the second filter plate, the second water removal plate and the heating plate are tightly connected to the inner wall of the tank body of the second chamber.

[0016] A further solution of the present invention is that the filtering accuracy of the first second filter plate is smaller than the filtering accuracy of the second second filter plate.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model provides a steelmaking converter gas recovery and drying device. Through the coordination of a converter gas pipeline, an air inlet pipe, a first filter plate, a fixing seat, a water injection pipe, a watering pipe and a watering nozzle, when the gas enters the air inlet pipe through the converter gas pipeline, the first filter plate can block particles in the gas and make it enter the first chamber, and the liquid sprayed by the watering nozzle can attach and precipitate the particulate matter in the gas, so that the particulate matter in the gas is removed more quickly, and large particulate matter in the gas is prevented from entering the second chamber; through the coordination of a first dewatering plate, an exhaust pipe, a second dewatering plate, a second filter plate, an air pipe, a heating plate and a heater, when the filtered gas enters the second chamber through the exhaust pipe, the first dewatering plate performs preliminary water absorption, and after entering the second chamber, the heater heats the heating plate, so that the water in the gas can be removed more quickly, and the second filter plate and the second dewatering plate perform further filtering and water absorption, so that the residual particulate matter and water in the gas can be better removed, and the gas can be supplied and used through the air pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of a preferred embodiment of the steelmaking converter gas recovery and drying device provided by the utility model;

[0021] Figure 2 This utility model Figure 1 The cross-sectional structural diagram is shown.

[0022] Among them, 1. support legs, 2. tank body, 3. air inlet pipe, 4. fixed seat, 5. converter gas pipeline, 6. water injection pipe, 7. valve, 8. drain pipe, 9. gas pipeline, 10. heater, 11. heating plate, 12. first filter plate, 13. sprinkler pipe, 14. sprinkler nozzle, 15. first water removal plate, 16. exhaust pipe, 17. isolation plate, 18. second water removal plate, 19. second filter plate, 20. anti-slip mat, 21. second chamber, 22. first chamber. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] like Figure 1-2 As shown, a steelmaking converter gas recovery and drying device includes a tank body 2, a support leg 1 and an air inlet pipe 3. The cross-section of the tank body 2 is circular. The support leg 1 is arranged at the bottom of the tank body 2. A horizontal isolation plate 17 is arranged inside the tank body 2. The isolation plate 17 crosses the tank body 2 from the middle. The outer side of the isolation plate 17 is tightly connected to the inner side wall of the tank body 2. The isolation plate 17 isolates the interior of the tank body 2 into a first chamber 22 and a second chamber 21. The air inlet pipe 3 is arranged on the outer side of the top of the tank body 2 and is connected to the first chamber 22 inside the tank body 2. A drain pipe 8 connected to the inside of the first chamber 22 is arranged on the tank body 2 at the bottom of the first chamber 22. A fixing seat 4 is arranged on the top of the air inlet pipe 3. Both sides of the fixing seat 4 are connected There is a converter gas pipeline 5, and a first filter plate 12 is arranged in the fixed seat 4. The filtering accuracy of the first filter plate is less than that of the second filter plate 19, and preliminary particulate matter filtering is performed. A through exhaust pipe 16 is arranged on the isolation plate 17. The air inlet end of the exhaust pipe 16 is located in the first chamber 22 and is provided with a first dewatering plate 15. A gas heating and filtering mechanism is arranged in the second chamber 21. Specifically, the gas heating and filtering mechanism includes a heater 10 arranged at the bottom of the tank body 2, a heating plate 11 electrically connected to the heater 10 and arranged in the middle of the second chamber 21, and the heating plate 11 is selected to have a through hole for gas to pass through, and a second filter plate 19 and a second dewatering plate 18 are arranged inside the second chamber 21. The outlet end of the exhaust pipe 16 is located in the second chamber 21 and on one side of the gas heating and filtering mechanism. An air supply pipe 9 connected to the second chamber 21 is arranged on the tank body 2 on the other side of the gas heating and filtering mechanism in the second chamber 21. Valves 7 are arranged on the drain pipe 8 and the air supply pipe 9. A water sprinkling and cleaning mechanism is also arranged on the top of the first chamber 22. Specifically, the water sprinkling and cleaning mechanism includes a water injection pipe 6 arranged on the top of the outer side of the tank body 2 of the first chamber 22, and a water sprinkling pipe 13 arranged above the inside of the first chamber 22. The water injection pipe 6 is connected to the water sprinkling pipe 13, and a plurality of water sprinkler nozzles 14 are arranged on the water sprinkling pipe 13.

[0026] The lower section of the exhaust pipe 16 is a straight pipe, which passes through the isolation plate 17. The upper section of the exhaust pipe 16 is a curved pipe, and the air inlet end of the curved pipe of the upper section of the exhaust pipe 16 is vertically downward, so that the gas can enter the exhaust pipe 16 from the bottom.

[0027] The second filter plate 19 , the second water removal plate 18 and the heating plate 11 are all square, and both sides of the second filter plate 19 , the second water removal plate 18 and the heating plate 11 are tightly connected to the inner wall of the tank body 2 of the second chamber 21 .

[0028] Through the above technical scheme, the gas with particulate matter and moisture in the converter gas pipeline 5 enters the first chamber 22 from the air inlet pipe 3, the particulate matter is blocked by the first filter plate 12 and falls into the first chamber 22, and the liquid sprayed by the water sprinkling and cleaning mechanism located above the first chamber 22 causes the dust particles to attach and settle to form water sediment, thereby preventing the particulate matter in the gas from entering the gas transmission pipe 9, and the water sediment can be discharged through the drain pipe 8; the gas with moisture and some particulate matter enters the second chamber 21 from the exhaust pipe 16 from the first chamber 22, and part of the moisture is absorbed by the first dewatering plate 15, and then the gas heating and filtering mechanism is used to further filter the particulate matter and adsorb the moisture, and then the moisture is evaporated by heating. The treated gas does not contain particulate matter and moisture, and has a high quality, and can be directly introduced into the gas transmission pipeline for supply and use.

[0029] Example 2

[0030] This embodiment is based on the embodiment 1.

[0031] A further solution of the utility model is that two of the second filter plates 19 and the second water removal plates 18 are provided, and the two second water removal plates 18 are symmetrically installed along the two sides of the heating plate 11, and the two second filter plates 19 are symmetrically installed along the two sides of the heating plate 11, and the two second filter plates 19 are located outside the two second water removal plates 18. Through the above technical solution, the coal gas discharged through the gas outlet end of the exhaust pipe 16 successively passes through the first second filter plate 19, the first second water removal plate 18, the heating plate 11, the second second water removal plate 18, and the second second filter plate 19 in the second chamber 21, and then is discharged from the gas supply pipe 9, and is initially filtered and water absorbed by the first second filter plate 19 and the first second water removal plate 18, and is heated by the heating plate 11, and then further water absorbed and filtered by the second second water removal plate 18 and the second second filter plate 19. After multiple layers of filtration and water absorption, the discharged coal gas is further purified and dried, and the quality of the discharged coal gas is better.

[0032] The filtering accuracy of the first second filter plate 19 is smaller than the filtering accuracy of the second second filter plate 19 .

[0033] Four supporting legs 1 are provided, and anti-slip pads 20 are provided at the bottoms of the four supporting legs 1 .

[0034] The watering pipe 13 is annular, and the plurality of watering nozzles 14 are evenly distributed below the watering pipe 13 , so that the watering nozzles 14 evenly spray liquid into the first chamber 22 to settle the particles.

[0035] How it works:

[0036] According to the above embodiment, when the converter gas pipeline 5 is transporting gas, the first filter plate 12 blocks the particulate matter in the gas and drops it into the first chamber 22, and the gas is mixed into the first chamber 22. At this time, the water pipe is connected to the water injection pipe 6, and water enters the sprinkler pipe 13 through the water injection pipe 6, and is finally sprayed out from the sprinkler nozzle 14. The sprayed water assists and precipitates the particulate matter in the gas, so that the particulate matter falls on the isolation plate 17. The filtered gas in the first chamber 22 enters the second chamber 21 through the exhaust pipe 16. The first water removal plate 15 can To block part of the moisture from entering the exhaust pipe 16, the heater 10 is started at this time, and the heater 10 heats the heating plate 11 to remove the moisture in the coal gas and make the coal gas dry. The second filter plate 19 can filter the particulate matter in the coal gas again, and the second dewatering plate 18 can further adsorb the moisture in the coal gas. Then the valve 7 is opened, and the coal gas is transported again through the gas pipe 9. When it is necessary to clean the impurities in the first chamber 22, the valve 7 is opened, and the impurities are discharged through the drain pipe 8. In this way, the recovery of the steelmaking converter gas is completed.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A steelmaking converter gas recovery and drying device, characterized in that: The invention comprises a tank body (2), a supporting leg (1) and an air inlet pipe (3), wherein the supporting leg (1) is arranged at the bottom of the tank body (2), a horizontal isolation plate (17) is arranged inside the tank body (2), and the isolation plate (17) isolates the inside of the tank body (2) into a first chamber (22) and a second chamber (21), the air inlet pipe (3) is arranged at the top of the tank body (2), a drainage pipe (8) is arranged on the tank body (2) at the bottom of the first chamber (22), a fixing seat (4) is arranged at the top of the air inlet pipe (3), both sides of the fixing seat (4) are connected to the converter gas pipeline (5), and the fixing seat ( 4) is provided with a first filter plate (12), the isolation plate (17) is provided with a through exhaust pipe (16), the air inlet end of the exhaust pipe (16) is provided with a first dewatering plate (15), a gas heating and filtering mechanism is provided in the second chamber (21), the air outlet end of the exhaust pipe (16) is located on one side of the gas heating and filtering mechanism, a gas supply pipe (9) is provided on the tank body (2) on the other side of the gas heating and filtering mechanism in the second chamber (21), valves (7) are provided on the drain pipe (8) and the gas supply pipe (9), and a water sprinkling and cleaning mechanism is also provided on the top of the first chamber (22).

2. A steelmaking converter gas recovery and drying device according to claim 1, characterized in that: The gas heating and filtering mechanism comprises a heating plate (11) arranged at the bottom of the tank body (2), electrically connected to the heater (10) and arranged in the middle of the second chamber (21), a second filtering plate (19) and a second dewatering plate (18) arranged inside the second chamber (21).

3. A steelmaking converter gas recovery and drying device according to claim 2, characterized in that: The second filter plates (19) and the second water removal plates (18) are both provided with two, the two second water removal plates (18) are symmetrically installed along the two sides of the heating plate (11), the two second filter plates (19) are symmetrically installed along the two sides of the heating plate (11), and the two second filter plates (19) are located outside the two second water removal plates (18).

4. A steelmaking converter gas recovery and drying device according to any one of claims 1-2, characterized in that: The water sprinkling cleaning mechanism comprises a water injection pipe (6) arranged at the top of the outer side of the tank body (2) of the first chamber (22), and a water sprinkling pipe (13) arranged at the top inside the first chamber (22); the water injection pipe (6) is connected to the water sprinkling pipe (13), and a plurality of water sprinkling nozzles (14) are arranged on the water sprinkling pipe (13).

5. The steelmaking converter gas recovery and drying device according to claim 4, characterized in that: The watering pipe (13) is annular, and a plurality of watering nozzles (14) are evenly distributed below the watering pipe (13).

6. The steelmaking converter gas recovery and drying device according to claim 5, characterized in that: The lower section of the exhaust pipe (16) is a straight pipe, the lower section of the exhaust pipe (16) passes through the isolation plate (17), the upper section of the exhaust pipe (16) is a curved pipe, and the air inlet end of the curved pipe of the upper section of the exhaust pipe (16) is vertically downward.

7. The steelmaking converter gas recovery and drying device according to claim 3, characterized in that: The second filter plate (19), the second water removal plate (18) and the heating plate (11) are all square, and both sides of the second filter plate (19), the second water removal plate (18) and the heating plate (11) are tightly connected to the inner wall of the tank body (2) of the second chamber (21).

8. The steelmaking converter gas recovery and drying device according to claim 6, characterized in that: Four supporting legs (1) are provided, and anti-slip pads (20) are provided at the bottoms of the four supporting legs (1).

Images