Smelting furnace waste gas treatment device for raw material treatment

Abstract

The utility model relates to the technical field of waste gas treatment devices, and discloses a smelting furnace waste gas treatment device for raw material treatment, which comprises a smelting furnace gas outlet pipe, the top end of a sealing sleeve is fixedly connected with a first conveying pipe, and a gas inclined conveying pipe is arranged in the first conveying pipe; and a liquid containing box is installed at the end of the other side of the first conveying pipe, a protective net is fixedly connected to the interior of the liquid containing box, and a second conveying pipe is installed on the side face of the liquid containing box. According to the smelting furnace waste gas treatment device for raw material treatment, by starting an air pump, the air pump drives one end of a first conveying pipe to form negative pressure, then waste gas is conveniently driven to enter a liquid containing box through the first conveying pipe, meanwhile, liquid is arranged in the liquid containing box, and when the gas passes through the interior of the liquid containing box, the waste gas is discharged out of the liquid containing box; liquid in the liquid containing box can cool the waste gas, and the problem that the temperature of the waste gas is too high, and consequently the filtering device is scalded and damaged at high temperature is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment devices, in particular to a smelting furnace waste gas treatment device for raw material processing. Background Art

[0002] A smelting furnace refers to a device that melts metal ingots and some scrap metals and adds necessary alloy components, and then smelts them into the required alloys through operations such as slagging and refining. At the same time, the smelting furnace drives the raw materials to undergo refining, which will produce waste gas. The waste gas contains harmful substances. When the waste gas is directly discharged into the air, the harmful substances in the waste gas will cause air pollution. It is necessary to use a waste gas treatment device to filter and treat the waste gas generated when the smelting furnace is used.

[0003] For example, the waste gas treatment device proposed in the application number CN201910159452.7 includes an absorption tower body, which is formed with an internal space; a spray part, which sprays the cleaning liquid into the internal space in a mist form; and a waste gas introduction part, which introduces the waste gas in a swirling manner in the internal space, and a concave-convex shape is formed on the inner circumferential surface of the absorption tower body facing the internal space;

[0004] In the above device, by transmitting the absorbed waste gas to the filtering device and using the swirling wind to introduce it, the reserved time of the waste gas can be increased, and then the contact time between the waste gas and the filtering device can be increased. The increase in contact time can improve the filtering efficiency of the waste gas. At the same time, when the waste gas is filtered through the filtering device, impurities will be generated during the filtration. As time goes by, the impurities will continue to accumulate inside the filtering device, causing blockage and damage to the filtering device. For this reason, we have proposed a smelting furnace waste gas treatment device for raw material processing. Utility Model Content

[0005] In view of the shortcomings of the existing waste gas treatment devices for smelting furnaces used for raw material processing, the utility model provides a waste gas treatment device for smelting furnaces used for raw material processing, which is equipped with a flue gas centralized transmission pipe arranged inside the second transmission pipe, and the flue gas centralized transmission pipe drives the gas to be transported upward in a centralized manner, and at the same time the filtering device filters the waste gas. When impurities are generated by filtering, the impurities can be transmitted to the outside of the conical baffle, and the conical baffle can drive the impurities to be discharged to the outside. After the impurities are discharged, the impurities can be avoided from accumulating inside the flue gas centralized transmission pipe, and the impurities can be avoided from accumulating inside the flue gas centralized transmission pipe, thereby solving the problems raised in the above-mentioned background technology.

[0006] The utility model provides the following technical scheme: a smelting furnace waste gas treatment device for raw material processing, comprising a smelting furnace outlet pipe, the top end of the sealing sleeve is fixedly connected with a first transmission pipe, the interior of the first transmission pipe is equipped with a gas oblique transmission pipe, the end of the other side of the first transmission pipe is equipped with a liquid placement box, the interior of the liquid placement box is fixedly connected with a protective net, the side of the liquid placement box is equipped with a second transmission pipe, the top of the second transmission pipe is fixedly connected with a filter box, the upper end of the smelting furnace outlet pipe is movably sleeved with a sealing sleeve, one side of the sealing sleeve is fixedly connected with a side connecting plate, the interior of the side connecting plate is equipped with a fastening bolt, the interior of the second transmission pipe is fixedly connected with a flue gas centralized transmission pipe, the top of the flue gas centralized transmission pipe is fixedly connected with a centralized transmission pipe, the top of the centralized transmission pipe is located in the second transmission pipe and a conical baffle is arranged, the interior of the filter box is equipped with a filtering device, the top of the filter box is equipped with an upper pressure plate, and the top of the upper pressure plate is equipped with a flue gas discharge baffle.

[0007] Preferably, the interior of the filter device includes a filter device shell, a first diverter baffle is fixedly connected to the lower end of the interior of the filter device shell, a second diverter baffle is fixedly connected to the top of the interior of the filter device shell, a gas inlet hole is opened on the outside of the first diverter baffle, a gas exhaust hole is opened on the inside of the gas inlet hole, the first diverter baffle and the second diverter baffle are arranged crosswise with each other, and the filter device is filled between the first diverter baffle and the second diverter baffle.

[0008] Preferably, the conical baffle is conical and is arranged at the upper end of the centralized transmission pipe. The inner side of the centralized transmission pipe is conical and is located at the lower end of the conical baffle. A drainage groove is provided between the outside of the centralized smoke transmission pipe and the inner wall of the second transmission pipe.

[0009] Preferably, an opening is formed on the side of the sealing sleeve, and the fastening bolts are arranged at both ends of the opening, and the fastening bolts are installed inside the connecting plates at both ends of the opening.

[0010] Preferably, an air pump is installed on the outside of the oblique gas delivery pipe, and the inside of the oblique gas delivery pipe extends to the inside of the first transmission pipe, and the oblique gas delivery pipe is arranged in an inclined direction.

[0011] Preferably, the protective net is arranged at the lower end of the second transmission pipe, the interior of the liquid placement box is filled with liquid, and the other end of the first transmission pipe extends into the liquid.

[0012] Preferably, the filter device is arranged inside the filter box, the upper pressure plate is installed on the top of the filter device, and the outside of the smoke exhaust baffle is arranged obliquely toward the outside.

[0013] Compared with the existing smelting furnace waste gas treatment device for raw material processing, the utility model has the following beneficial effects:

[0014] 1. The exhaust gas treatment device of the smelting furnace for raw material processing starts the air pump, which drives one end of the first transmission pipe to form a negative pressure, and then conveniently drives the exhaust gas to pass through the first transmission pipe to the inside of the liquid placement box. At the same time, liquid is arranged inside the liquid placement box. When the gas passes through the inside of the liquid placement box, the liquid inside the liquid placement box can cool down the exhaust gas, so as to avoid the problem of excessively high exhaust temperature causing high temperature scalding and damage to the filter device.

[0015] 2. The exhaust gas treatment device for the smelting furnace used for raw material processing drives the exhaust gas upward through the concentrated flue gas transmission pipe. At the same time, the exhaust gas passes through the inside of the filter device. The filter device can drive the exhaust gas to filter and process. At the same time, after the filter device drives the exhaust gas to filter, impurities are generated. The impurities can slide downward for processing. At the same time, the impurities can slide to the outside of the conical baffle. The conical baffle can drive the impurities to be discharged. The impurities can flow between the concentrated flue gas transmission pipe and the second transmission pipe, thereby preventing the impurities from flowing back to the inside of the concentrated flue gas transmission pipe. The concentrated flue gas transmission pipe can prevent the impurities from flowing back and being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the main body of the utility model;

[0018] Figure 3 This is a schematic diagram of the front view structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the filter device of the utility model;

[0020] Figure 5 This is an enlarged structural diagram of point A of the utility model.

[0021] In the figure: 1. smelting furnace outlet pipe; 2. sealing sleeve; 3. side connecting plate; 4. fastening bolts; 5. first transmission pipe; 6. gas oblique transmission pipe; 7. liquid placement box; 8. protective net; 9. second transmission pipe; 10. filter box; 11. flue gas centralized transmission pipe; 12. centralized transmission pipe; 13. conical baffle; 14. filter device; 141. filter device housing; 142. first diverter baffle; 143. second diverter baffle; 144. gas inlet hole; 145. gas discharge hole; 15. upper pressure plate; 16. flue gas discharge baffle. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , a smelting furnace waste gas treatment device for raw material processing, including a smelting furnace outlet pipe 1, a first transmission pipe 5 is fixedly connected to the top of a sealing sleeve 2, the first transmission pipe 5 drives the gas for transportation, a gas oblique transmission pipe 6 is installed inside the first transmission pipe 5, the gas oblique transmission pipe 6 drives the gas to be transported to the inside of a liquid placement box 7 through an air pump, a liquid placement box 7 is installed at the end of the other side of the first transmission pipe 5, the liquid placement box 7 drives the passing gas to cool down, a protective net 8 is fixedly connected to the inside of the liquid placement box 7, the protective net 8 reduces the splashing amplitude of the liquid inside the liquid placement box 7, a second transmission pipe 9 is installed on the side of the liquid placement box 7, the top of the second transmission pipe 9 is fixedly connected to a filter box 10, the filter box 10 filters the passing waste gas, the upper end of the smelting furnace outlet pipe 1 is movably sleeved with a sealing sleeve 2, and one side of the sealing sleeve 2 is fixedly connected to a side connecting plate 3 , a fastening bolt 4 is installed inside the side connecting plate 3, and the sealing sleeve 2 is sleeved on the outside of the smelting furnace outlet pipe 1. At the same time, the fastening bolt 4 is rotated, and the fastening bolt 4 drives the sealing sleeve 2 to shrink inward, and then controls the sealing sleeve 2 and the smelting furnace outlet pipe 1 to be spliced ​​and limited. The second transmission pipe 9 is fixedly connected to the inside of the flue gas centralized transmission pipe 11, and the top of the flue gas centralized transmission pipe 11 is fixedly connected to the centralized transmission pipe 12. The top of the centralized transmission pipe 12 is located inside the second transmission pipe 9 and is provided with a conical baffle 13. The conical baffle 13 drives the impurities generated after filtration to be diverted to the outside to avoid the problem of impurities flowing back to the outside of the flue gas centralized transmission pipe 11. A filtering device 14 is installed inside the filter box 10, and an upper pressure plate 15 is provided on the top of the filter box 10. A flue gas discharge baffle 16 is installed on the top of the upper pressure plate 15, and the upper pressure plate 15 limits the position of the filtering device 14.

[0024] See also Figure 4The filter device 14 includes a filter device housing 141, a first flow dividing baffle 142 is fixedly connected to the lower end of the filter device housing 141, a second flow dividing baffle 143 is fixedly connected to the top of the filter device housing 141, a gas inlet hole 144 is provided on the outside of the first flow dividing baffle 142, a gas outlet hole 145 is provided on the inside of the gas inlet hole 144, and the filter device 14 is arranged inside the filter box 10. At the same time, when the exhaust gas passes through the filter box 10, the filter device 14 can drive the exhaust gas passing through to be filtered. The first flow dividing baffle 142 and the second flow dividing baffle 143 are fixedly connected to the top of the filter device housing 141. A gas inlet hole 144 is provided on the outside of the first flow dividing baffle 142, and a gas outlet hole 145 is provided on the inside of the gas inlet hole 144. The filter device 14 is arranged inside the filter box 10. At the same time, when the exhaust gas passes through the filter box 10, the filter device 14 can drive the exhaust gas passing through to be filtered. 3 are arranged crosswise with each other, a filtering device is filled between the first diverter baffle 142 and the second diverter baffle 143, the first diverter baffle 142 and the second diverter baffle 143 are arranged crosswise with each other, and a filtering device is formed between the first diverter baffle 142 and the second diverter baffle 143. When the gas is transmitted, the gas can pass through the temporal part of the filtering device in sequence, and then the gas can be transported to the first diverter baffle 142 and the second diverter baffle 143 through the gas inlet hole 144, and the gas transmission space is increased. At the same time, the gas can be transmitted through the gas exhaust hole 145, thereby improving the filtering efficiency of the gas.

[0025] See also Figure 2 The conical baffle 13 is conical, and the conical baffle 13 is arranged at the upper end of the centralized transmission pipe 12. The inner side of the centralized transmission pipe 12 is conical and located at the lower end of the conical baffle 13. A drainage groove is provided between the outside of the centralized smoke transmission pipe 11 and the inner wall of the second transmission pipe 9. The conical baffle 13 is arranged at the upper end of the centralized smoke transmission pipe 12. The interior of the centralized smoke transmission pipe 11 can concentrate and drive the exhaust gas to be transported upward. At the same time, the gas is transmitted to the interior of the filter box 10 through the conical baffle 13 for filtration. When the filter device 14 drives the gas transmission, the gas can slide down through the impurities, and the impurities that slide down flow to the outside of the conical baffle 13. At the same time, the conical baffle 13 drives the impurities to flow between the centralized smoke transmission pipe 11 and the second transmission pipe 9, thereby preventing impurities from flowing into the interior of the centralized smoke transmission pipe 11, causing blockage in the centralized smoke transmission pipe 11.

[0026] See also Figure 5 An opening is provided on the side of the sealing sleeve 2, and fastening bolts 4 are arranged at both ends of the opening. The fastening bolts 4 are installed inside the connecting plates at both ends of the opening. An opening is provided on the side of the sealing sleeve 2, and the fastening bolts 4 are arranged at both ends of the opening. By rotating the fastening bolts 4, the fastening bolts 4 drive the side connecting plate 3 to shrink inward, and then the sealing sleeve 2 can be installed on the outside of the smelting furnace outlet pipe 1, and the smelting furnace outlet pipe 1 is installed on the outside of the smelting furnace. When the smelting furnace generates waste gas during use, the sealing sleeve 2 can centrally drive the waste gas for collection.

[0027] See also Figure 2An air pump is installed on the outside of the oblique gas delivery pipe 6, and the inside of the oblique gas delivery pipe 6 extends to the inside of the first delivery pipe 5. At the same time, the oblique gas delivery pipe 6 is arranged in an inclined direction. By starting the air pump, the gas drives the gas to be transported to the inside of the first delivery pipe 5. At the same time, the oblique gas delivery pipe 6 is transported to the end of the first delivery pipe 5 in an inclined direction, and then a negative pressure state is formed on one side of the first delivery pipe 5. The first delivery pipe 5 in a negative pressure state can drive the gas to be discharged, providing convenience.

[0028] See also Figure 2 The protective net 8 is arranged at the lower end of the second transmission pipe 9. The interior of the liquid placement box 7 is filled with liquid. The other end of the first transmission pipe 5 extends into the liquid and is installed inside the sealing sleeve 2 through the protective net 8. At the same time, the protective net 8 protects the liquid filled in the liquid placement box 7. When the first transmission pipe 5 drives the gas to be transported to the interior of the liquid placement box 7, the gas is prevented from vibrating inside the liquid placement box 7. Then, the protective net 8 can reduce the problem of excessive liquid vibration frequency caused by the contact between the gas and the liquid. At the same time, the liquid placement box 7 can cool the passing exhaust gas.

[0029] See also Figure 2 The filter device 14 is arranged inside the filter box 10, and the upper pressure plate 15 is installed at the top of the filter device 14. The outside of the smoke exhaust baffle 16 is arranged obliquely toward the outside. The filter device 14 is arranged inside the filter box 10, and the upper pressure plate 15 extends to the upper end of the filter box 10. The upper pressure plate 15 can squeeze and limit the position of the filter device 14, thereby ensuring stability when the filter device 14 is installed at a limited position.

[0030] Working principle: When in use, the sealing sleeve 2 is arranged at the upper end of the smelting furnace outlet pipe 1, and the liquid placement box 7 is filled with liquid. The gas is transported to the inside of the first transmission pipe 5 through the sealing sleeve 2, and the gas installed on the outside of the gas oblique delivery pipe 6 is started. The air pump drives the gas to be transported to the inside of the first transmission pipe 5, and then the first transmission pipe 5 can drive the exhaust gas to be transported to the inside of the liquid placement box 7. The exhaust gas contacts the liquid, and then the exhaust gas can be cooled. At the same time, the soluble substances contained in the exhaust gas can be filtered into the liquid placement box 7. When the gas is continuously transported, the gas is transported to the inside of the filter box 10 through the flue gas centralized transmission pipe 11 and the second transmission pipe 9, and then the filter device 14 can filter the exhaust gas. At the same time, the impurities filtered by the filter device 14 can flow to the inside of the conical baffle 13, and at the same time, the conical baffle 13 drives the impurities to flow back to the inside of the second transmission pipe 9, and at the same time prevents the impurities from flowing back to the inside of the flue gas centralized transmission pipe 11, which then causes the problem of blockage in the flue gas centralized transmission pipe 11.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A smelting furnace waste gas treatment device for raw material processing, comprising a smelting furnace outlet pipe (1), the upper end of the smelting furnace outlet pipe (1) is movably sleeved with a sealing sleeve (2), the top end of the sealing sleeve (2) is fixedly connected to a first transmission pipe (5), the interior of the first transmission pipe (5) is equipped with a gas oblique delivery pipe (6), the other end of the first transmission pipe (5) is equipped with a liquid placement box (7), the interior of the liquid placement box (7) is fixedly connected with a protective net (8), a second transmission pipe (9) is installed on the side of the liquid placement box (7), and the top end of the second transmission pipe (9) is fixedly connected to a filter box (10), characterized in that: A side connecting plate (3) is fixedly connected to one side of the sealing sleeve (2), a fastening bolt (4) is installed inside the side connecting plate (3), a smoke centralizing transmission pipe (11) is fixedly connected inside the second transmission pipe (9), a centralizing transmission pipe (12) is fixedly connected to the top of the centralizing transmission pipe (11), a conical baffle (13) is provided at the top of the centralizing transmission pipe (12) located inside the second transmission pipe (9), a filtering device (14) is installed inside the filter box (10), an upper pressure plate (15) is provided at the top of the filter box (10), and a smoke exhaust baffle (16) is installed at the top of the upper pressure plate (15).

2. The exhaust gas treatment device for a smelting furnace for raw material processing according to claim 1 is characterized in that: The filter device (14) comprises a filter device housing (141) inside, a first flow diversion baffle (142) is fixedly connected to the lower end of the filter device housing (141), a second flow diversion baffle (143) is fixedly connected to the top end of the filter device housing (141), a gas inlet hole (144) is provided outside the first flow diversion baffle (142), a gas outlet hole (145) is provided inside the gas inlet hole (144), the first flow diversion baffle (142) and the second flow diversion baffle (143) are arranged crosswise with each other, and the filter device is filled between the first flow diversion baffle (142) and the second flow diversion baffle (143).

3. The exhaust gas treatment device for a smelting furnace for raw material processing according to claim 2 is characterized in that: The conical baffle (13) is conical and is arranged at the upper end of the concentrated transmission pipe (12). The inner side of the concentrated transmission pipe (12) is conical and is located at the lower end of the conical baffle (13). A drainage groove is provided between the outside of the concentrated smoke transmission pipe (11) and the inner wall of the second transmission pipe (9).

4. The exhaust gas treatment device for a smelting furnace for raw material processing according to claim 1 is characterized in that: An opening is provided on the side of the sealing sleeve (2), and the fastening bolts (4) are arranged at both ends of the opening. The fastening bolts (4) are installed inside the connecting plates at both ends of the opening.

5. The exhaust gas treatment device for a smelting furnace for raw material processing according to claim 1 is characterized in that: An air pump is installed outside the oblique gas delivery pipe (6), and the interior of the oblique gas delivery pipe (6) extends to the interior of the first transmission pipe (5), while the oblique gas delivery pipe (6) is arranged in an inclined direction.

6. The exhaust gas treatment device for a smelting furnace for raw material processing according to claim 1 is characterized in that: The protective net (8) is arranged at the lower end of the second transmission pipe (9), the interior of the liquid placement box (7) is filled with liquid, and the other end of the first transmission pipe (5) extends into the interior of the liquid.

7. The exhaust gas treatment device for a smelting furnace for raw material processing according to claim 1 is characterized in that: The filter device (14) is arranged inside the filter box (10), the upper pressure plate (15) is installed on the top of the filter device (14), and the outside of the smoke exhaust baffle (16) is arranged obliquely toward the outside.

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