A smelting furnace molten iron pouring smoke collecting device

Abstract

The utility model belongs to the field of flue gas collection technology, specifically is a kind of ferrochrome pouring flue gas collection device of ore-heating furnace, including collection box box body, the top of collection box box body is fixedly installed with first support frame, the top of first support frame is fixedly installed with cylinder, the output of cylinder is fixedly installed with second support frame, the bottom of second support frame is fixedly installed with suction hood, the top of suction hood is fixedly installed with connecting pipe, first support frame and second support frame between fixedly installed with telescopic link, the inside of telescopic link is installed with first spring;The utility model provides a kind of ferrochrome pouring flue gas collection device of ore-heating furnace, by the setting of collection box box body, first support frame, cylinder, second support frame, suction hood, connecting pipe, telescopic link and first spring, can be adjusted height according to the position of ladle, to be able to extract the flue gas generated by pouring by suction hood, to facilitate the use of device.

Description

Technical Field

[0001] This utility model belongs to the field of flue gas collection technology, specifically a flue gas collection device for casting molten iron in an electric arc furnace. Background Technology

[0002] A submerged arc furnace, also known as an electric arc furnace or resistance furnace, is mainly used for reducing and smelting ores, carbonaceous reducing agents, and solvents. It mainly produces ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, ferrosilicon manganese alloy, and other ferroalloys, which are important industrial raw materials in the metallurgical industry and chemical raw materials such as calcium carbide.

[0003] The existing flue gas collection devices for molten iron casting in electric arc furnaces have a fixed height for the exhaust hood, which is difficult to adjust flexibly according to the specific conditions during molten iron casting. This results in a limited flue gas collection range, making it easy for the flue gas to diffuse into the air, thus affecting the quality of flue gas purification and increasing the difficulty and cost of maintenance.

[0004] Therefore, this utility model provides a device for collecting flue gas from molten iron casting in an electric arc furnace. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the problems raised in the background art.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The present utility model provides a collection box for collecting flue gas from molten iron casting in an electric arc furnace, which includes a collection box body. A first support frame is fixedly installed on the top of the collection box body. A cylinder is fixedly installed on the top of the first support frame. A second support frame is fixedly installed at the output end of the cylinder. An exhaust hood is fixedly installed at the bottom of the second support frame. A connecting pipe is fixedly installed on the top of the exhaust hood. A telescopic rod is fixedly installed between the first support frame and the second support frame. A first spring is installed inside the telescopic rod.

[0007] As a further preferred embodiment of this technical solution, two mounting slots are provided on the side of the collection box body. The main body of the dust removal device and the main body of the gas filter device are respectively inserted into the mounting slots. The front of the main body of the dust removal device and the main body of the gas filter device are fixedly installed with sealing plates by bolts.

[0008] As a further preferred embodiment of this technical solution, the dust removal device body includes a first mounting frame, a sliding groove is provided on the side of the first mounting frame, a circular groove is provided on the inner wall of the sliding groove, a second spring is provided inside the circular groove, a push plate is fixedly installed on the other end of the second spring, a filter plate is slidably connected inside the sliding groove, a rotating groove is provided on the side of the first mounting frame, a fixing bolt is rotatably connected inside the rotating groove, and a push block is threadedly connected to the surface of the fixing bolt.

[0009] As a further preferred embodiment of this technical solution, the main body of the gas filtration device includes a second mounting frame, and an activated carbon filter layer is fixedly installed inside the second mounting frame.

[0010] As a further preferred embodiment of this technical solution, the bottom of the collection box is fixedly equipped with casters, the side of the collection box is fixedly equipped with an air pump, and the air outlet of the air pump is fixedly equipped with an air outlet pipe.

[0011] As a further preferred embodiment of this technical solution, the internal shape of the rotating groove is convex, the shape of the push block is convex, and the surface of the push block near the fixing bolt is slidably connected to the inside of the rotating groove, and the end of the push block near the filter plate is round.

[0012] The beneficial effects of this utility model are as follows: 1. The present invention relates to a device for collecting flue gas from molten iron casting in an electric arc furnace. By configuring a collection box, a first support frame, a cylinder, a second support frame, an extraction hood, a connecting pipe, a telescopic rod, and a first spring, the device can adjust its height according to the position of the molten iron ladle, thereby extracting the flue gas generated during casting through the extraction hood for convenient use.

[0013] 2. The ferroal gas collection device for molten iron casting in an electric arc furnace described in this utility model, through the arrangement of a first mounting frame, a sliding groove, a circular groove, a second spring, a push plate, a filter plate, a rotating groove, a fixing bolt, and a push block, allows the filter plate to be fixed by rotating the fixing bolt. Simultaneously, rotating the fixing bolt in the opposite direction allows the second spring to push the push plate to move, and the moving push plate can push out the filter plate, thereby removing the clogged filter plate and eliminating the need to replace the filter plate, thus increasing the convenience of the device. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the present invention. Figure 3 This is a schematic diagram of the internal structure of the present invention; Figure 4 This is a schematic diagram of the exploded structure of this utility model; Figure 5 For the present utility model Figure 4 A magnified schematic diagram of the structure at point A; Figure 6 For the present utility model Figure 4 A magnified schematic diagram of the structure at point B.

[0016] In the diagram: 1. Collection box body; 2. First support frame; 3. Cylinder; 4. Second support frame; 5. Exhaust hood; 6. Connecting pipe; 7. Telescopic rod; 8. First spring; 9. Mounting groove; 10. Main body of dust removal device; 101. First mounting frame; 102. Slide groove; 103. Circular groove; 104. Second spring; 105. Push plate; 106. Filter plate; 107. Rotating groove; 108. Fixing bolt; 109. Push block; 11. Main body of gas filtration device; 110. Second mounting frame; 111. Activated carbon filter layer; 12. Moving wheel; 13. Exhaust pump; 14. Exhaust pipe; 15. Sealing plate. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] like Figures 1 to 6 As shown, this utility model discloses a flue gas collection device for molten iron casting in an electric arc furnace. It includes a collection box body 1, a first support frame 2 fixedly mounted on the top of the collection box body 1, a cylinder 3 fixedly mounted on the top of the first support frame 2, a second support frame 4 fixedly mounted on the output end of the cylinder 3, an extraction hood 5 fixedly mounted on the bottom of the second support frame 4, a connecting pipe 6 fixedly mounted on the top of the extraction hood 5, a telescopic rod 7 fixedly mounted between the first support frame 2 and the second support frame 4, and a first spring 8 installed inside the telescopic rod 7. The first support frame 2 is welded to the top of the collection box body 1, so that the cylinder 3 is fixedly mounted on the top of the first support frame 2, thereby enabling… The output end of cylinder 3 can drive the fixedly installed second support frame 4 to rise and fall. Since the bottom of the second support frame 4 is fixedly installed on the top of the suction hood 5, the height of the suction hood 5 can be adjusted. A telescopic rod 7 is fixedly installed between the suction hood 5 and the first support frame 2, so that when the suction hood 5 is raised and lowered, the stability of the suction hood 5 can be increased by the first spring 8 installed inside the telescopic rod 7. A connecting pipe 6 is fixedly installed on the top of the suction hood 5, and the other end of the connecting pipe 6 is fixedly installed on the top of the collection box 1. At the same time, the connecting pipe 6 is a telescopic flexible hose, so that it can be adjusted according to the raising and lowering of the suction hood 5 to facilitate the use of the device.

[0019] like Figures 4 to 6As shown, two mounting slots 9 are provided on the side of the collection box 1. The dust removal device body 10 and the gas filter device body 11 are respectively inserted into the mounting slots 9. The front of the dust removal device body 10 and the gas filter device body 11 are fixed with sealing plates 15 by bolts. The two mounting slots 9 are provided on the front of the collection box 1. The dust removal device body 10 and the gas filter device body 11 are respectively inserted into the mounting slots 9. At the same time, the moving wheels 12 can be fixed with bolts, so that the moving wheels 12 can seal the dust removal device body 10 and the gas filter device body 11, thereby facilitating the use of the device.

[0020] like Figures 1 to 6 As shown, the dust removal device body 10 includes a first mounting frame 101. A sliding groove 102 is provided on the side of the first mounting frame 101. A circular groove 103 is provided on the inner wall of the sliding groove 102. A second spring 104 is provided inside the circular groove 103. A push plate 105 is fixedly installed at the other end of the second spring 104. A filter plate 106 is slidably connected inside the sliding groove 102. A rotating groove 107 is provided on the side of the first mounting frame 101. A fixing bolt 108 is rotatably connected inside the rotating groove 107. A push block 109 is threaded onto the surface of the fixing bolt 108. The first mounting frame 101 is slidably connected inside the mounting groove 9. Four sliding grooves 102 are provided on the front of the first mounting frame 101. 02 The inner wall has two circular grooves 103 on opposite sides. A second spring 104 is installed inside the two circular grooves 103. A push plate 105 is fixedly installed at the other end of the two second springs 104. A filter plate 106 is slidably connected inside the slide groove 102, so that the filter plate 106 can filter dust in the flue gas. Rotating grooves 107 are provided on both sides of the first mounting frame 101. A fixing bolt 108 is rotatably connected inside the rotating groove 107, so that when the fixing bolt 108 rotates, it can drive the push block 109 to slide along the inside of the rotating groove 107. Then the push block 109 can be inserted into the slot opened on the side of the filter plate 106, thereby fixing the filter plate 106.

[0021] like Figures 4 to 6 As shown, the main body 11 of the gas filtration device includes a second mounting frame 110, and an activated carbon filter layer 111 is fixedly installed inside the second mounting frame 110. The activated carbon filter layer 111 can filter harmful gases in the flue gas, thereby facilitating the use of the device.

[0022] like Figures 1 to 4As shown, a caster wheel 12 is fixedly installed at the bottom of the collection box 1, and an air pump 13 is fixedly installed on the side of the collection box 1. An air outlet pipe 14 is fixedly installed at the air outlet of the air pump 13. The caster wheel 12 fixedly installed at the bottom of the collection box 1 allows the device to move. At the same time, the air pump 13 fixedly installed on the side of the collection box 1 allows the air pump 13 to draw air, and then discharge the gas through the air outlet pipe 14 fixedly installed at the air outlet of the air pump 13.

[0023] Working principle: During operation, when pouring molten iron, the height of the extraction hood 5 needs to be adjusted so that the output end of the cylinder 3 can drive the extraction hood 5, which is fixedly installed at the bottom of the second support frame 4, to rise and fall. The extraction hood 5 can then extract the flue gas. A first spring 8 is installed inside the telescopic rod 7 installed between the first support frame 2 and the extraction hood 5, which increases the stability of the device. A connecting pipe 6 is fixedly installed on the top of the extraction hood 5, allowing the flue gas to enter the collection box 1 through the other end of the connecting pipe 6. When treating the flue gas, a first mounting frame 101 is inserted into the mounting groove 9 on the front of the collection box 1. A sliding groove 102 is provided on the side of the first mounting frame 101 to facilitate the extraction of flue gas. The filter plate 106 is inserted into the slide groove 102, so that the filter plate 106 can filter dust in the flue gas. When the filter plate 106 is removed, the fixing bolt 108 can be rotated so that the fixing bolt 108 can drive the push block 109 to be pulled out from the filter plate 106. At the same time, the second spring 104 can push the push plate 105 to move. When the push plate 105 moves, it can push the filter plate 106 out, so that only the filter plate 106 needs to be pulled out, thereby reducing the replacement of the filter plate 106. A second mounting frame 110 is inserted into another mounting groove 9 so that the activated carbon filter layer 111 fixedly installed inside the second mounting frame 110 can filter harmful gases in the flue gas, thereby facilitating the use of the device.

[0024] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for collecting flue gas from molten iron casting in a submerged arc furnace, characterized in that, The device includes a collection box body, a first support frame fixedly installed on the top of the collection box body, a cylinder fixedly installed on the top of the first support frame, a second support frame fixedly installed on the output end of the cylinder, an air extraction hood fixedly installed on the bottom of the second support frame, a connecting pipe fixedly installed on the top of the air extraction hood, a telescopic rod fixedly installed between the first support frame and the second support frame, and a first spring installed inside the telescopic rod.

2. The molten iron pouring fume collecting device of the ore smelting furnace according to claim 1, characterized in that, The side of the collection box has two mounting slots, and the main body of the dust removal device and the main body of the gas filter device are respectively inserted into the mounting slots. The front of the main body of the dust removal device and the main body of the gas filter device are fixed with sealing plates by bolts.

3. The molten iron pouring fume collecting device of the ore smelting furnace according to claim 2, characterized in that, The dust removal device includes a first mounting frame, a sliding groove on the side of the first mounting frame, a circular groove on the inner wall of the sliding groove, a second spring inside the circular groove, a push plate fixedly mounted on the other end of the second spring, a filter plate slidably connected inside the sliding groove, a rotating groove on the side of the first mounting frame, a fixing bolt rotatably connected inside the rotating groove, and a push block threadedly connected to the surface of the fixing bolt.

4. The molten iron pouring fume collecting device of the ore smelting furnace according to claim 2, characterized in that, The main body of the gas filtration device includes a second mounting frame, and an activated carbon filter layer is fixedly installed inside the second mounting frame.

5. The molten iron pouring fume collecting device of the ore smelting furnace according to claim 1, characterized in that, The bottom of the collection box is fixedly equipped with casters, and the side of the collection box is fixedly equipped with an air pump, with an air outlet pipe fixedly installed at the air outlet of the air pump.

6. The molten iron pouring fume collecting device of the ore smelting furnace according to claim 3, characterized in that, The rotating groove has a convex shape inside, the push block has a convex shape, and the surface of the push block near the fixing bolt is slidably connected to the inside of the rotating groove. The end of the push block near the filter plate is round.

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