Steelmaking converter gas recovery device

Abstract

The utility model discloses a steelmaking converter gas recovery device which comprises a gas holder body, a gas inlet pipe is arranged on the left side of the gas holder body in a welded mode, a cooling box is arranged in the gas holder body in a welded mode, a water inlet pipe is arranged above the cooling box in a welded mode, and a cooling water pipe is arranged below the water inlet pipe in a welded mode. A cooling water pump is arranged in the cooling box through welding; a connecting pipe A is arranged on the right side of the cooling box through welding; a dust removal box is arranged on the right side of the connecting pipe A through welding; an air outlet pipe is arranged on the right side of the dust removal box through welding; the dewatering box is arranged on the right side of the pickling box through welding, the recycling pipe is welded to the upper portion of the dewatering box, the recycling pipe is connected with the storage box through welding, the storage box is made of stainless steel, and the switch valve is arranged above the output pipe through welding; the steelmaking converter gas recovery device has the advantage of high recovery efficiency.

Description

Technical Field

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

[0002] Converter steelmaking uses molten iron, scrap steel and ferroalloy as the main raw materials. The steelmaking process is completed in the converter by the physical heat of the molten iron itself and the heat generated by the chemical reaction between the components of the molten iron. During the steelmaking process, air or oxygen needs to be blown into the converter. During steelmaking, the carbon element in the molten iron reacts with oxygen to produce carbon monoxide, which is coal gas.

[0003] Converter steelmaking requires the recycling of coal gas, which is usually stored in a gas tank. However, the coal gas needs to be cooled and dusted before it is recycled and stored.

[0004] The existing recycling device circulates cooling water to exchange heat with the coal gas passing through the heat exchange tubes, thereby cooling the coal gas flowing through the heat exchange tubes. The coal gas is in a state of continuous flow, and its residence time at the heat exchange tubes is limited, the cooling efficiency is low, and the collection and storage temperature of the cooled coal gas cannot be controlled. Utility Model Content

[0005] The utility model aims to provide a steelmaking converter gas recovery device, which has the advantage of high recovery efficiency and solves the problems in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steelmaking converter gas recovery device, comprising a gas holder body, an air inlet pipe is welded on the left side of the gas holder body, a cooling box is welded inside the gas holder body, a connecting pipe A is welded on the right side of the cooling box, and a gas removing pipe is welded on the right side of the connecting pipe A.

[0007] A dust box, an air outlet pipe is welded on the right side of the dust removal box, a pickling box is welded on the right side of the air outlet pipe, a dehydration box is welded on the right side of the pickling box, a recovery pipe is welded above the dehydration box, and the recovery pipe is connected to the storage box by welding.

[0008] Preferably, a water inlet pipe is provided above the cooling box by welding, a cooling water pipe is provided below the water inlet pipe by welding, a water outlet pipe is provided on the right side of the cooling water pipe by welding, and a cooling water pump is provided inside the cooling box by welding.

[0009] Preferably, the dust removal box includes a box body, a filter bag is arranged inside the box body by welding, a pulse valve is arranged above the filter bag by welding, the pulse valve is composed of a valve body, a valve core, a valve cover, and a spring, a pressure tank is arranged inside the box body by bolts, and some of the pressure tanks are provided with a fan by welding.

[0010] Preferably, the pickling box is made of stainless steel with good corrosion resistance. An acid storage tank is arranged inside the pickling box by welding, an acid delivery pump is arranged on the right side of the acid storage tank by welding, an acid connecting pipe is arranged on the right side of the acid storage pump by welding, an acid filter is arranged on the right side of the acid connecting pipe by welding, an acid nozzle is arranged above the pickling box by welding, and a sewage pipe is arranged below the pickling box by welding.

[0011] Preferably, the dehydration box includes a water inlet, a filter dehydrator is welded below the water inlet, a wastewater collection trough is inlaid below the dehydration box, a drainage pump is welded on the wastewater collection trough, and a drainage pipe is welded on the right side of the drainage pump.

[0012] Preferably, the storage box is made of stainless steel, an output pipe is provided on the right side of the storage box by welding, and a switch valve is provided above the output pipe by welding.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The present invention relates to a steelmaking converter gas recovery device which can cool down the high-temperature gas by setting a cooling box. The main function of the cooling water pipe is to circulate the coolant, thereby absorbing the heat in the gas and reducing the gas temperature. The device is provided with a water inlet and a water outlet, respectively used for introducing the coolant into the cooling box and discharging the hot coolant out of the cooling box. The device is made of a steel pipe and has the characteristics of corrosion resistance and high temperature resistance. The cooling water pump is the power source of the cooling box and is used to drive the coolant to circulate in the cooling water pipe. The cooling water pump can meet the cooling needs.

[0015] The present steelmaking converter gas recovery device can remove dust and other particulate matter in the gas by setting a dust removal box, thereby ensuring the cleanliness of the gas and reducing damage to the environment and equipment. It can also recover particulate matter in the gas, such as dust, coke, etc. These substances can be reused to improve resource utilization. The operation and maintenance of the dust removal box are relatively simple, which can reduce manual operation and maintenance costs. After dust removal by the dust removal box, the gas is transmitted to the pickling box, which can remove impurities and harmful substances in the converter gas, such as dust, tar, and ammonia, thereby purifying the gas and improving the quality of the gas, so that higher quality steel products can be produced, and the harmful parts in the gas can also reduce pollution to the environment.

[0016] The present invention relates to a steelmaking converter gas recovery device which can remove moisture from the gas by setting a dehydration box. The dehydration box can also remove moisture and other gas components in the gas, thereby improving the purity of the gas and making it more suitable for subsequent process applications. The dehydration box can remove unstable components in the gas, thereby reducing the risk of explosion and fire, and ensuring the safety of the production process. The waste water is then discharged through a drainage pipe, thereby reducing the work intensity of the user. The gas treated by the dehydration box is recovered to the storage box through a recovery pipe, thereby improving the recovery rate, increasing the gas utilization rate for the user, and reducing energy expenses. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a cross-sectional view of a steelmaking converter gas recovery device of the utility model;

[0018] Figure 2 This is a partial cross-sectional view of a steelmaking converter gas recovery device of the utility model;

[0019] Figure 3 This is a partial view of a steelmaking converter gas recovery device of the utility model;

[0020] Figure 4 This is a left view of a steelmaking converter gas recovery device of the utility model;

[0021] Figure 5 This is a front view of a steelmaking converter gas recovery device of the utility model;

[0022] Explanation of the markings in the figure: 1. Gas cabinet body; 2. Air inlet pipe; 3. Cooling box; 4. Connecting pipe A; 5. Dust removal box; 6. Air outlet pipe; 7. Pickling box; 8. Dehydration box; 9. Recovery pipe; 10. Storage box; 11. Water inlet pipe; 12. Cooling water pipe; 13. Water outlet pipe; 14. Cooling water pump; 15. Box body; 16. Filter bag; 17. Pulse valve; 18. Valve body; 19. Valve core; 20. Valve cover; 21. Spring; 22. Pressure tank; 23. Fan; 24. Acid storage tank; 25. Acid delivery pump; 26. Acid connecting pipe; 27. Acid filter; 28. Acid nozzle; 29. ​​Drain pipe; 30. Water inlet; 31. Filter dehydrator; 32. Wastewater collection tank; 33. Drain pump; 34. Drain pipe; 35. Output pipe; 36. Switch valve. DETAILED DESCRIPTION

[0023] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention but cannot be used to limit the scope of the present invention.

[0024] In the description of the present invention, unless otherwise specified, "plurality" means two or more; the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the directions or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, orientation, or position.

[0025] The specific orientation structure and operation, therefore, cannot be understood as limiting the present invention.In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Embodiment 1:

[0028] See also Figure 1-5 A steelmaking converter gas recovery device comprises a gas holder body 1, an air inlet pipe 2 is welded on the left side of the gas holder body 1, a cooling box 3 is welded inside the gas holder body 1, a water inlet pipe 11 is welded above the cooling box 3, a cooling water pipe 12 is welded below the water inlet pipe 11, the main function of the cooling water pipe 12 is to circulate the coolant, thereby absorbing the heat in the gas and reducing the gas temperature, a water outlet pipe 13 is welded on the right side of the cooling water pipe 12, a cooling water outlet pipe 13 is welded inside the cooling box 3, and a cooling water outlet pipe 13 is welded on the right side of the cooling water pipe 12. Pump 14, the cooling water pump 14 is the power source of the cooling box 3, and is used to drive the coolant to circulate in the cooling water pipe 12. The cooling water pump 14 can meet the cooling needs. A connecting pipe A4 is welded on the right side of the cooling box 3. A dust removal box 5 is welded on the right side of the connecting pipe A4. The dust removal box 5 can remove dust and other particulate matter in the coal gas, ensure the cleanliness of the coal gas, reduce damage to the environment and equipment, and can also recycle particulate matter in the coal gas, such as dust, coke, etc. These substances can be reused to improve resource utilization. The dust removal box 5

[0029] The operation and maintenance are relatively simple, and the manual operation and maintenance costs can be reduced. An outlet pipe 6 is arranged on the right side of the dust removal box 5 by welding, and a pickling box 7 is arranged on the right side of the outlet pipe 6 by welding. The dust removal box 5 transmits the coal gas to the pickling box 7 after dust removal. The pickling box 7 can remove impurities and harmful substances in the converter gas, such as dust, tar, and ammonia, thereby purifying the coal gas and improving the quality of the coal gas, so as to produce higher quality steel products and reduce the pollution of harmful parts in the coal gas to the environment.

[0030] Embodiment 2:

[0031] See also Figure 1-5 ; A steelmaking converter gas recovery device, the dehydration box 8 can remove the moisture in the coal gas, and the dehydration box 8 can remove the moisture and other gas components in the coal gas, improve the purity of the coal gas, and make it more suitable for subsequent process applications. The dehydration box 8 can remove unstable components in the coal gas, reduce the risk of explosion and fire, ensure the safety of the production process, and ensure production safety. Then the waste water is discharged through the drainage pipe 34, reducing the work intensity of the user. The coal gas treated by the dedrier is recovered to the storage box 10 through the recovery pipe 9, which improves the recovery rate and increases the gas utilization rate for the user and reduces energy expenses.

[0032] Working principle:

[0033] The utility model is a steelmaking converter gas recovery device. When in use, the gas is transported to the gas holder body 1 through the air inlet pipe 2, and then the gas is transmitted to the cooling box 3 for cooling. A water inlet pipe 11 is installed inside the cooling box 3. A cooling water pipe 12 is welded below the water inlet pipe 11, and a water outlet pipe 13 is welded on the right side of the cooling water pipe 12. A cooling water pump 14 is welded inside the cooling box 3, which can cool the gas and then transmit it to the dust removal box 5 through the connecting pipe A4. The dust removal box 5 can remove dust and other particulate matter in the gas, ensure the cleanliness of the gas, reduce damage to the environment and equipment, and can also recover particulate matter in the gas, such as dust, coke, etc. These substances can be reused to improve resource utilization. Next, the gas is transmitted to the pickling box 7 through the air outlet pipe 6. The pickling box 7 can Impurities and harmful substances in the converter gas, such as dust, tar, and ammonia, are removed to purify the gas and improve its quality, so that higher quality steel products can be produced. The harmful parts in the gas can also reduce pollution to the environment. The water in the gas is then dehydrated through the dehydration box 8 to ensure that the water content in the gas is too low. The unstable components in the gas can be removed to reduce the risk of explosion and fire, and the safety of the production process is ensured. The waste water is then discharged through the drainage pipe 34, reducing the user's workload. The gas treated by the dehydration box 8 is recovered to the storage box 10 through the recovery pipe 9, which improves the recovery rate and increases the gas utilization rate for the user, reducing energy expenses. The treated gas is then transported to the storage box 10 through the recovery pipe 9 for standby.

[0034] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A steelmaking converter gas recovery device, comprising a gas holder body, characterized in that: An air inlet pipe (2) is welded on the left side of the gas holder body (1), a cooling box (3) is welded inside the gas holder body (1), a connecting pipe A (4) is welded on the right side of the cooling box (3), a dust removal box (5) is welded on the right side of the connecting pipe A (4), an air outlet pipe (6) is welded on the right side of the dust removal box (5), a pickling box (7) is welded on the right side of the air outlet pipe (6), a dehydration box (8) is welded on the right side of the pickling box (7), a recovery pipe (9) is welded above the dehydration box (8), and the recovery pipe (9) is connected to the storage box (10) by welding.

2. A steelmaking converter gas recovery device according to claim 1, characterized in that: A water inlet pipe (11) is arranged above the cooling box (3) by welding, a cooling water pipe (12) is arranged below the water inlet pipe (11) by welding, a water outlet pipe (13) is arranged on the right side of the cooling water pipe (12) by welding, and a cooling water pump (14) is arranged inside the cooling box (3) by welding.

3. A steelmaking converter gas recovery device according to claim 1, characterized in that: The dust removal box (5) comprises a box body (15), a filter bag (16) is arranged inside the box body (15) by welding, a pulse valve (17) is arranged above the filter bag (16) by welding, the pulse valve (17) is composed of a valve body (18), a valve core (19), a valve cover (20), and a spring (21), a pressure tank (22) is arranged inside the box body (15) by bolts, and a fan (23) is arranged on the right side of the pressure tank (22) by welding.

4. A steelmaking converter gas recovery device according to claim 1, characterized in that: The pickling box (7) is made of stainless steel and has good corrosion resistance. An acid storage tank (24) is arranged inside the pickling box (7) by welding. An acid delivery pump (25) is arranged on the right side of the acid storage tank (24) by welding. An acid connecting pipe (26) is arranged on the right side of the acid delivery pump (25) by welding. An acid filter (27) is arranged on the right side of the acid connecting pipe (26) by welding. An acid nozzle (28) is arranged on the top of the pickling box (7) by welding. A sewage pipe (29) is arranged on the bottom of the pickling box (7) by welding.

5. The steelmaking converter gas recovery device according to claim 1, characterized in that: The dehydration box (8) comprises a water inlet (30), a filter dehydrator (31) is arranged below the water inlet (30) by welding, a wastewater collection trough (32) is arranged below the dehydration box (8) by inlaying, a drainage pump (33) is arranged on the wastewater collection trough (32) by welding, and a drainage pipe (34) is arranged on the right side of the drainage pump (33) by welding.

6. A steelmaking converter gas recovery device according to claim 1, characterized in that: The storage box (10) is made of stainless steel. An output pipe (35) is provided on the right side of the storage box (10) by welding, and a switch valve (36) is provided above the output pipe (35) by welding.

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