Flue gas treatment device for silicon controlled intermediate frequency furnace

Abstract

The utility model discloses a flue gas treatment device for a silicon controlled rectifier intermediate frequency furnace. Comprising a dust collecting cover, a first cavity, a fixing column, a smoke exhaust pipe, a connecting base, a first gas collecting and filtering mechanism, a through groove, a first filtering base, a first filtering plate, first filtering cotton, a grip, a fixing mechanism, a clamping block, a clamping groove, an annular groove, a limiting block, a fixing bolt, a collecting cover, a second cavity, a mounting groove, a second gas collecting and filtering mechanism, a second filtering base, a second filtering plate, second filtering cotton, a clamping mechanism, a clamping plate, a groove, a push handle, a handle and a sliding mechanism. The first gas collecting and filtering mechanism is arranged in the middle of the lower end of the dust collecting cover. Compared with the prior art, the smoke dust collecting device has the advantages that smoke dust can be collected in multiple directions, the large-area first filter seat and the large-area second filter seats can absorb the smoke dust together, the smoke dust absorbing effect is better, smoke dust absorbing is more thorough without any place, and smoke dust dissipation is reduced to the maximum extent.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke treatment for thyristor medium-frequency furnaces, and specifically refers to a smoke treatment device for thyristor medium-frequency furnaces. Background Art

[0002] During the heating process of the materials in the medium-frequency furnace, a large amount of harmful substances such as dust and waste gas will be generated. Therefore, effective treatment of the smoke and dust is required during use. A smoke treatment device for thyristor medium-frequency furnace smoke treatment described in the publication number CN215610120U includes a smoke recovery panel. A controller is provided at the right end of the smoke recovery panel. A filter vertical shaft is fixedly connected to the center position at the bottom end of the smoke recovery panel. A fixing rod is fixedly connected to the inner wall at the bottom end of the filter vertical shaft. An insertion rod is provided inside the fixing rod. The insertion rod penetrates through the fixing rod. In the utility model, through the setting of the filter vertical shaft, filter cotton net, filter protection cover and fixing block, this setting is combined with the sliding connection of the filter vertical shaft and the filter cotton net, the sliding connection of the filter protection cover and the smoke recovery panel, and the sliding connection of the fixing block and the limiting rod. When using this new type, the smoke will pass through the filter protection cover, filter cotton net and filter vertical shaft, filtering most of the heavy metal particles in the smoke, preventing the metal particles from directly entering the inside of the smoke treatment device and improving the efficiency of smoke treatment and recovery. However, the existing technology still has defects:

[0003] 1. In the existing technology, there is no barrier set on the side of the smoke recovery panel. The medium-frequency furnace generates a large amount of smoke. Only a relatively flat smoke recovery panel is set at the upper end, and smoke will escape from all around, resulting in a poor effect of intercepting and absorbing the smoke.

[0004] 2. In the existing technology, a filter cotton net and a filter protection cover are provided. Compared with the large-area smoke recovery panel, the area for absorbing smoke by the filter cotton net and the filter protection cover is too small, the efficiency of absorbing smoke is not high, and it is also easily blocked by soot and dust, thereby reducing the amount of smoke absorbed, and the smoke is likely to disperse to all around. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the above defects and provide a smoke treatment device for thyristor medium-frequency furnaces.

[0006] To solve the above technical problem, the technical solution provided by the utility model is: A smoke treatment device for thyristor medium-frequency furnaces, including:

[0007] A dust collection hood, with a cavity one provided in the middle of the dust collection hood;

[0008] Fixed columns, four of the fixed columns are fixedly connected to the front, back, left and right sides inside the dust collection hood, and the fixed columns are located inside the cavity one;

[0009] A smoke exhaust pipe, which is fixedly inserted into the middle of the upper end of the dust collection hood;

[0010] A connecting seat, which is fixedly connected to the middle of the lower end of the dust collection hood;

[0011] An air collection and filtering mechanism I, which is arranged in the middle of the lower end of the dust collection hood. The air collection and filtering mechanism I includes a through groove opened in the middle of the lower end of the dust collection hood. A filter seat I is arranged in the middle of the connecting seat. A filter plate I is fixedly connected to the lower end of the filter seat I. A filter cotton I is fixedly connected to the upper end inside the filter seat I. Grips are fixedly connected to both sides of the lower end of the filter seat I;

[0012] A fixing mechanism, which is arranged between the connecting seat and the filter seat I;

[0013] A collection hood, which is fixedly connected to the lower end of the dust collection hood. A cavity II is arranged in the middle of the collection hood, and the cavity II is communicated with the inside of the cavity I;

[0014] An installation groove, which is opened on both sides and the rear end inside the collection hood;

[0015] An air collection and filtering mechanism II, which is arranged in the middle of the installation groove. The air collection and filtering mechanism II includes a filter seat II inserted into the middle of the inside of the installation groove. A filter plate II is fixedly connected to the middle of one side of the filter seat II. A filter cotton II is fixedly connected to the middle of the other side of the filter seat II;

[0016] A clamping mechanism, which is arranged between the collection hood and the filter seat II. The clamping mechanism includes clamping plates arranged on both sides of the filter seat II. Grooves for cooperating with the clamping plates are opened at the upper and lower ends on both sides of the filter seat II. A push handle is fixedly connected to the end of the clamping plate away from the collection hood. Handles are fixedly connected to the middle of both ends of one side of the filter seat II;

[0017] A sliding mechanism, which is arranged on the collection hood.

[0018] As an improvement, the fixing mechanism includes:

[0019] Clamping blocks, two of which are fixedly connected to the middle of the front and rear ends of the filter seat I;

[0020] Clamping grooves, which are opened on both sides of the lower end of the connecting seat;

[0021] Ring grooves, which are opened at the upper end inside the connecting seat for cooperating with the clamping blocks;

[0022] Limit blocks, two of which are fixedly connected to the front and rear inside the connecting seat, and the limit blocks are located on one side of the clamping blocks;

[0023] Fixing bolts are threadedly connected to the front and rear of the lower end of the connecting seat, and the upper ends of the fixing bolts are threadedly connected to the middle of the clamping block.

[0024] As an improvement, the sliding mechanism includes:

[0025] A movable groove is opened inside the collection hood for use in cooperation with the clamping plate;

[0026] Springs, two of the springs are fixedly connected to the upper and lower ends of the side of the clamping plate away from the second filter seat, and the side of the springs away from the clamping plate is fixedly connected to one side of the movable groove;

[0027] Slot holes are opened on the collection hood for use in cooperation with the push handle.

[0028] As an improvement, the connecting seat is of an annular seat structure, and the diameter of the through groove is smaller than the diameter of the first filter seat.

[0029] As an improvement, one side of the push handle is larger than the size of the slot hole and can block the slot hole.

[0030] The advantages of the present utility model compared with the prior art are as follows: 1. In the present utility model, a collection hood is further provided at the lower end of the dust collection hood, and second filter seats are provided on both sides and the rear end inside the collection hood. Filter plates II and filter cotton II are provided on the second filter seats. Therefore, the smoke and dust can be better absorbed from the side to prevent the smoke and dust from escaping from all around.

[0031] 2. In the present utility model, the flue gas can flow through the filter plate I and the filter cotton I from the upper end of the smoke and dust, and then flow out through the exhaust pipe. At the same time, it can also pass through the filter plates II and the filter cotton II on both sides and the rear end, and be sucked into the inner cavity II of the collection hood and discharged upward through the exhaust pipe. It can not only capture the smoke and dust in multiple directions, but also absorb the smoke and dust together with the large-area first filter seat and the multiple second filter seats. The smoke and dust absorption effect is better, and the absorption is more thorough without escape, reducing the smoke and dust escape to the greatest extent. Description of the Drawings

[0032] Figure 1 is the structural schematic diagram of a flue gas treatment device for a thyristor intermediate frequency furnace of the present utility model Figure 1

[0033] Figure 2 is the structural schematic diagram of a flue gas treatment device for a thyristor intermediate frequency furnace of the present utility model Figure 2

[0034] Figure 3 is the right cross-sectional view of a flue gas treatment device for a thyristor intermediate frequency furnace of the present utility model.

[0035] Figure 4 ​​The utility model is a cross-sectional view of a smoke treatment device for a silicon controlled rectifier medium frequency furnace.

[0036] Figure 5 This is a partial structural diagram of a flue gas treatment device for a thyristor medium frequency furnace in the utility model. Figure 1 .

[0037] Figure 6 This is a partial structural diagram of a flue gas treatment device for a thyristor medium frequency furnace in the utility model. Figure 2 .

[0038] Figure 7 The utility model is a partial structural sectional view of a smoke treatment device for a silicon controlled rectifier medium frequency furnace.

[0039] Figure 8 This is a partial structural diagram of a flue gas treatment device for a thyristor medium frequency furnace in the utility model. Figure 3 .

[0040] Figure 9 It is a right view of a smoke treatment device for a thyristor medium frequency furnace according to the utility model.

[0041] Figure 10 yes Figure 9 Schematic diagram of the cross section in the middle AA area.

[0042] Figure 11 yes Figure 10 Enlarged view of area A in the middle.

[0043] As shown in the figure: 1. Dust hood; 2. Cavity 1; 3. Fixed column; 4. Smoke exhaust pipe; 5. Connecting seat; 6. Gas collecting and filtering mechanism 1; 61. Through slot; 62. Filter seat 1; 63. Filter plate 1; 64. Filter cotton 1; 65. Handle; 7. Fixing mechanism; 71. Block; 72. Slot; 73. Ring groove; 74. Limit block; 75. Fixed bolt; 8. Collecting hood; 9. Cavity 2; 10. Mounting slot; 11. Gas collecting and filtering mechanism 2; 111. Filter seat 2; 112. Filter plate 2; 113. Filter cotton 2; 12. Connecting mechanism; 121. Block; 122. Groove; 123. Push handle; 124. Handle; 13. Sliding mechanism; 131. Movable slot; 132. Spring; 133. Slot. DETAILED DESCRIPTION

[0044] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0045] A flue gas treatment device for a thyristor medium-frequency furnace, including a dust collection hood 1 and a collection hood 8. A cavity one 2 is arranged in the middle of the dust collection hood 1. The collection hood 8 is fixedly connected to the lower end of the dust collection hood 1. A cavity two 9 is arranged in the middle of the collection hood 8. The cavity two 9 is internally connected to the cavity one 2. Fixed columns 3 are fixedly connected to the front and rear sides inside the dust collection hood 1. The fixed columns 3 are located inside the cavity one 2 to reinforce and support the upper and lower ends of the double-layer dust collection hood 1.

[0046] A smoke exhaust pipe 4 is fixedly connected to the middle of the upper end of the dust collection hood 1. The smoke exhaust pipe 4 is connected to an external pipeline. The smoke exhaust pipe 4 conveys the flue gas collected by the dust collection hood 1 and the collection hood 8 to an external dust treatment device.

[0047] A connection seat 5 is fixedly connected to the middle of the lower end of the dust collection hood 1. The connection seat 5 is of an annular seat structure. A gas collection and filtration mechanism one 6 is arranged in the middle of the lower end of the dust collection hood 1. The gas collection and filtration mechanism one 6 includes a through groove 61 opened in the middle of the lower end of the dust collection hood 1. A filter seat one 62 is arranged in the middle of the connection seat 5. The diameter of the through groove 61 is smaller than the diameter of the filter seat one 62. A filter plate one 63 is fixedly connected to the lower end of the filter seat one 62. A filter cotton one 64 is fixedly connected to the upper end inside the filter seat one 62. The filter cotton one 64 can be made of asbestos mesh with high temperature resistance and flame retardancy. Grips 65 are fixedly connected to both sides of the lower end of the filter seat one 62. The soot is filtered by the filter plate one 63 and the filter cotton one 64 and then flows to the smoke exhaust pipe 4 for discharge.

[0048] A fixing mechanism 7 is arranged between the connection seat 5 and the filter seat one 62. The fixing mechanism 7 includes a clamping block 71, a clamping groove 72, an annular groove 73, a limiting block 74, and a fixing bolt 75. Two clamping blocks 71 are fixedly connected to the middle of the front and rear ends of the filter seat one 62. The clamping grooves 72 are opened on both sides of the lower end of the connection seat 5. The annular groove 73 is opened inside the upper end of the connection seat 5 for use in cooperation with the clamping block 71. Two limiting blocks 74 are fixedly connected to the front and rear inside the connection seat 5. The limiting blocks 74 are located on one side of the clamping block 71. The fixing bolts 75 are threadedly connected to the front and rear of the lower end of the connection seat 5. The upper ends of the fixing bolts 75 are threadedly connected to the middle of the clamping block 71. When installing the filter seat one 62, hold the grips 65, align the clamping block 71 with the clamping groove 72 and insert it upward into the annular groove 73, then rotate the filter seat one 62 clockwise to drive the clamping block 71 to move in the annular groove 73. Stop rotating when the clamping block 71 touches the limiting block 74, and fix the position of the clamping block 71 through the fixing bolt 75. The installation and disassembly are both convenient, facilitating cleaning and replacement.

[0049] Installation grooves 10 are provided on both sides and the rear end inside the collection hood 8. A gas collection and filtration mechanism II 11 is arranged in the middle of the installation groove 10. The gas collection and filtration mechanism II 11 includes a filtration seat II 111 inserted into the middle of the interior of the installation groove 10. In the middle of one side of the filtration seat II 111, a filter plate II 112 is fixedly connected. In the middle of the other side of the filtration seat II 111, a filter cotton II 113 is fixedly connected. Smoke and dust can pass through the filter plate II 112 and the filter cotton II 113 on the filtration seat II 111 on both sides and the rear end, and be sucked into the interior of the cavity II 9 in the collection hood 8, and discharged upward through the exhaust pipe 4.

[0050] Therefore, the flue gas can flow through the filter plate I 63 and the filter cotton I 64 at the upper end for filtration and then flow to the exhaust pipe 4 for discharge. At the same time, it can also pass through the filter plate II 112 and the filter cotton II 113 on both sides and the rear end, be sucked into the interior of the cavity II 9 in the collection hood 8, and discharged upward through the exhaust pipe 4. It can not only capture the smoke and dust in all directions, but also absorb the smoke and dust together with the large-area filtration seat I 62 and multiple filtration seats II 111. The absorption effect of the smoke and dust is better, and the absorption is more thorough without escape, minimizing the escape of smoke and dust to the greatest extent.

[0051] A clamping mechanism 12 is arranged between the collection hood 8 and the filtration seat II 111. The clamping mechanism 12 includes clamping plates 121 arranged on both sides of the filtration seat II 111. Grooves 122 for cooperating with the clamping plates 121 are provided at the upper and lower ends on both sides of the filtration seat II 111. A push handle 123 is fixedly connected to one end of the clamping plate 121 away from the collection hood 8. Handles 124 are fixedly connected to the middle of both ends on one side of the filtration seat II 111. A sliding mechanism 13 is arranged on the collection hood 8. The sliding mechanism 13 includes a movable groove 131, a spring 132, and a slot hole 133. The movable groove 131 is opened inside the collection hood 8 for cooperating with the clamping plate 121. Two springs 132 are fixedly connected to the upper and lower ends on the side of the clamping plate 121 away from the filtration seat II 111. The side of the spring 132 away from the clamping plate 121 is fixedly connected to one side of the movable groove 131. The slot hole 133 is opened on the collection hood 8 for cooperating with the push handle 123. The size of one side of the push handle 123 is larger than that of the slot hole 133, and the slot hole 133 can be blocked.

[0052] When disassembling the filtration seat II 111, pull the push handles 123 at both ends away from each other, drive the clamping plates 121 away from the filtration seat II 111, and disengage from the slot hole 133. At this time, pulling the handle 124 can take out the filtration seat II 111 from the interior of the installation groove 10.

[0053] When the present utility model is specifically implemented, as Figure 1-11 shown, during use, the device is arranged at the upper end of the intermediate frequency furnace, and the exhaust pipe 4 is connected to an external pipeline. The exhaust pipe 4 conveys the flue gas collected by the dust collection hood 1 and the collection hood 8 to an external smoke and dust treatment device.

[0054] When the flue gas generated by the intermediate frequency furnace surges upward, the soot can flow to the exhaust pipe 4 after being filtered by the first filter plate 63 and the first filter cotton 64. The soot can also pass through the second filter plate 112 and the second filter cotton 113 on the second filter seats 111 on both sides and at the rear end, and be sucked into the inner cavity 9 of the collection hood 8 and discharged upward through the exhaust pipe 4. Therefore, the flue gas can be discharged through the exhaust pipe 4 after the soot at the upper end is filtered by the first filter plate 63 and the first filter cotton 64. At the same time, it can also pass through the second filter plate 112 and the second filter cotton 113 on both sides and at the rear end, be sucked into the inner cavity 9 of the collection hood 8, and be discharged upward through the exhaust pipe 4. It can not only capture the soot in multiple directions, but also absorb the soot together with the large-area first filter seat 62 and the multiple second filter seats 111. The soot absorption effect is better, and the absorption is more thorough without escape, minimizing the soot dispersion to the greatest extent.

[0055] When the device needs to be cleaned, the first filter seat 62 and the second filter seats 111 can be disassembled. When disassembling the first filter seat 62, unscrew the fixing bolt 75, hold the handle 65 and rotate the first filter seat 62 counterclockwise, align the clamping block 71 with the clamping groove 72 and move it downward, then the first filter seat 62 can be taken out downward together. When disassembling the second filter seats 111, pull the two end push handles 123 away from each other, drive the clamping plate 121 away from the second filter seats 111 and out of the slot holes 133. At this time, pulling the handle 124 can take out the second filter seats 111 from the installation slot 10. The installation and disassembly of the first filter seat 62 and the second filter seats 111 are both convenient, facilitating their cleaning and replacement.

[0056] The above describes the present utility model and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural modes and embodiments without creative efforts without departing from the creative purpose of the present utility model, they shall fall within the protection scope of the present utility model.

Claims

1. A flue gas treatment device for a thyristor medium frequency furnace, characterized in that: include: A dust collecting hood (1), wherein a cavity 1 (2) is provided in the middle of the dust collecting hood (1); Fixed columns (3), four of the fixed columns (3) are fixedly connected to the front and rear sides of the inside of the dust collecting cover (1), and the fixed columns (3) are located inside the cavity 1 (2); A smoke exhaust pipe (4), wherein the smoke exhaust pipe (4) is fixedly plugged into the middle of the upper end of the dust collecting hood (1); A connecting seat (5), wherein the connecting seat (5) is fixedly connected to the middle of the lower end of the dust collecting cover (1); An air collecting filter mechanism (6), the air collecting filter mechanism (6) being arranged in the middle of the lower end of the dust collecting cover (1), the air collecting filter mechanism (6) comprising a through slot (61) opened in the middle of the lower end of the dust collecting cover (1), a filter seat (62) being arranged in the middle of the connecting seat (5), a filter plate (63) being fixedly connected to the lower end of the filter seat (62), a filter cotton (64) being fixedly connected to the upper end of the filter seat (62), and handles (65) being fixedly connected to both sides of the lower end of the filter seat (62); A fixing mechanism (7), wherein the fixing mechanism (7) is arranged between the connecting seat (5) and the filter seat 1 (62); A collecting hood (8), the collecting hood (8) being fixedly connected to the lower end of the dust collecting hood (1), a second cavity (9) being arranged in the middle of the collecting hood (8), the second cavity (9) being connected to the interior of the first cavity (2); A mounting groove (10), wherein the mounting groove (10) is provided on both sides of the inner side and the inner rear end of the collection cover (8); A second air collecting and filtering mechanism (11), the second air collecting and filtering mechanism (11) being arranged in the middle of the mounting groove (10), the second air collecting and filtering mechanism (11) comprising a second filter seat (111) plugged into the middle of the mounting groove (10), a second filter plate (112) being fixedly connected in the middle of one side of the second filter seat (111), and a second filter cotton (113) being fixedly connected in the middle of the other side of the second filter seat (111); A clamping mechanism (12), the clamping mechanism (12) being arranged between the collecting cover (8) and the second filter seat (111), the clamping mechanism (12) comprising clamping plates (121) arranged on both sides of the second filter seat (111), grooves (122) for cooperating with the clamping plates (121) being provided at the upper and lower ends of both sides of the second filter seat (111), a push handle (123) being fixedly connected to one end of the clamping plate (121) away from the collecting cover (8), and a handle (124) being fixedly connected to the middle of both ends of one side of the second filter seat (111); A sliding mechanism (13), wherein the sliding mechanism (13) is arranged on the collection cover (8).

2. The smoke treatment device for a thyristor medium frequency furnace according to claim 1 is characterized in that: The fixing mechanism (7) comprises: A clamping block (71), two of the clamping blocks (71) are fixedly connected between the front and rear ends of the filter seat (62); A card slot (72), wherein the card slot (72) is provided on both sides of the lower end of the connecting seat (5); An annular groove (73), the annular groove (73) is provided at the upper end of the interior of the connecting seat (5) and is used in conjunction with the clamping block (71); A limit block (74), wherein two limit blocks (74) are fixedly connected to the front and rear of the connecting seat (5), and the limit blocks (74) are located on one side of the clamping block (71); A fixing bolt (75) is threadedly connected to the front and rear of the lower end of the connecting seat (5), and the upper end of the fixing bolt (75) is threadedly connected to the middle of the clamping block (71).

3. The smoke treatment device for a thyristor medium frequency furnace according to claim 1 is characterized in that: The sliding mechanism (13) comprises: A movable groove (131), wherein the movable groove (131) is arranged inside the collecting cover (8) and is used in conjunction with the clamping plate (121); Springs (132), two of the springs (132) are fixedly connected to the upper and lower ends of a side of the clamping plate (121) away from the second filter seat (111), and the side of the spring (132) away from the clamping plate (121) is fixedly connected to one side of the movable groove (131); A slot hole (133) is provided on the collection cover (8) and is used in conjunction with the push handle (123).

4. The smoke treatment device for a thyristor medium frequency furnace according to claim 1 is characterized in that: The connecting seat (5) is an annular seat structure, and the diameter of the through groove (61) is smaller than the diameter of the filter seat 1 (62).

5. The smoke treatment device for a thyristor medium frequency furnace according to claim 1 is characterized in that: One side of the push handle (123) is larger than the slot hole (133) and can cover the slot hole (133).

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