Flue gas denitration mechanism of heating furnace

Abstract

The utility model discloses a heating furnace flue gas denitration mechanism which comprises a bottom plate and two operation boxes which are arranged on the bottom plate and have the same structure, a U-shaped clamp is arranged at the top of each operation box, a conveying pipe is fixedly arranged on each U-shaped clamp, the conveying pipes are connected with the two operation boxes, and the two operation boxes are arranged on the bottom plate. Valves I for respectively controlling the two operation boxes are mounted on the conveying pipe; a connecting pipe is fixedly installed on the front side of each operation box, a second valve is installed on each connecting pipe, and a fixing pipe is connected to each connecting pipe. Two strip-shaped blocks are fixedly installed on each operation box, two sliding rods are slidably installed on the strip-shaped blocks, a baffle is fixedly installed on the sliding rods, a plurality of supporting plates are fixedly installed on the baffle, a filtering plate is slidably installed on the supporting plates, two triangular clamping grooves are formed in the sliding rods, and adjusting mechanisms are installed on the strip-shaped blocks; according to the utility model, continuous flue gas denitration is ensured, and the replacement efficiency of the activated carbon filter plate is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of flue gas denitration, and in particular relates to a flue gas denitration mechanism for a heating furnace. Background Art

[0002] In the metallurgical industry, a heating furnace is a device that heats materials or workpieces to the rolling and forging temperature. Heating furnaces are used in many industries such as petroleum, chemical industry, metallurgy, machinery, heat treatment, surface treatment, building materials, electronics, materials, light industry, daily chemicals, and pharmaceuticals. Heating furnaces are indispensable tools for steelmaking. During the use of heating furnaces, a large amount of flue gas will be generated. The flue gas carries a large amount of substances such as nitrate and sulfur. In order to collect various substances for recycling and facilitate the discharge of flue gas to avoid air pollution, it is usually necessary to denitrate the flue gas. There are many methods for denitrifying the flue gas. Among them, the use of activated carbon to remove nitrates in the flue gas through adsorption or catalytic reduction of granular activated carbon, thereby achieving the purpose of purifying the flue gas, is one of the common denitrification methods.

[0003] Traditionally, when using activated carbon for denitrification, in order to ensure the efficiency of denitrification, the activated carbon must be replaced regularly. During the operation, the denitrification work usually needs to be suspended, which will delay working time and affect the efficiency of denitrification.

[0004] Therefore, it is necessary to provide a new heating furnace flue gas denitrification mechanism to solve the above technical problems. Utility Model Content

[0005] The utility model aims to provide a flue gas denitration mechanism for a heating furnace.

[0006] The technical solution adopted by the utility model to solve the technical problem is: a heating furnace flue gas denitration mechanism, comprising a bottom plate and two operation boxes with the same structure installed on the bottom plate, each of the operation boxes is provided with a U-shaped clamp on the top, a delivery pipe is fixedly installed on the U-shaped clamp, the delivery pipe is connected to the two operation boxes, and valves for controlling the two operation boxes respectively are installed on the delivery pipe;

[0007] A connecting pipe is fixedly installed on the front side of each operation box, a valve 2 is installed on the connecting pipe, and a fixed pipe is connected to the connecting pipe;

[0008] Two bar blocks are fixedly installed on each operation box, two slide bars are slidably installed on the bar blocks, baffles are fixedly installed on the slide bars, multiple support plates are fixedly installed on the baffles, filter plates are slidably installed on the multiple support plates, two triangular slots are provided on the slide bars, and an adjustment mechanism is installed on the bar blocks.

[0009] Specifically, the adjustment mechanism is provided with a sliding cavity, which is opened at the top of the bar block, and a bar hole is provided at the bottom of the bar block. A threaded rod is installed in the bar hole, and a moving block is slidably installed in the sliding cavity. The moving block is threadedly connected to the moving block through the threaded rod, and the moving block moves in the sliding cavity. A triangular clamp block is installed at the end of the moving block, and the triangular clamp block matches the triangular clamp groove.

[0010] Specifically, three connecting pipes are fixedly installed on the top of the operation box, and the top ends of the connecting pipes are fixedly connected to the bottom ends of the conveying pipes.

[0011] Specifically, the fixed tube and the conveying tube are both T-shaped, and both ends of the fixed tube and the conveying tube are sealed.

[0012] Specifically, the operation box is provided with movable holes.

[0013] Specifically, a handle is provided at the end of the threaded rod.

[0014] The utility model has the following beneficial effects: when the two valves one and the two valves two are used in coordination, it is possible to select which operation box the flue gas enters according to needs, and the left and right operation boxes are used in turn, which is convenient for ensuring the continuous denitration process of the flue gas, and can also leave time for replacing the filter plate in one of the operation boxes, ensuring that the replacement does not delay the normal denitration of the flue gas, thereby relatively improving the efficiency of the use of the equipment and saving unnecessary time. By successively rotating the corresponding two threaded rods on an operation box, the restrictions on the corresponding baffle can be released, thereby facilitating the removal of multiple filter plates from the operation box, so as to quickly replace the filter plates and improve the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model.

[0017] Figure 3 It is a schematic diagram of the top view and cross-section structure of the strip block in the utility model.

[0018] Figure 4 for Figure 3 An enlarged schematic diagram of the bar block shown in .

[0019] Figure 5 It is a schematic diagram of the cross-sectional structure of the slide bar in the utility model from top view.

[0020] Figure 6 for Figure 5 An enlarged schematic diagram of the bar block shown in .

[0021] Figure 7It is a top view and cross-sectional assembly view of the support plate in the utility model.

[0022] In the figure: 1-bottom plate; 2-operating box; 3-conveying pipe; 4-connecting pipe; 5-connecting pipe; 6-fixed pipe; 7-movable hole; 8-strip block; 9-sliding rod; 10-baffle; 11-support plate; 12-activated carbon filter plate; 13-triangular slot; 14-sliding cavity; 15-threaded rod; 16-moving block; 17-triangular block. DETAILED DESCRIPTION

[0023] The utility model will now be further described in detail with reference to the accompanying drawings.

[0024] like Figure 1-7As shown, a flue gas denitrification mechanism of a heating furnace comprises a bottom plate 1, four supporting legs are fixedly installed at the bottom of the bottom plate 1, the four supporting legs prop up the bottom plate 1, two operation boxes 2 are fixedly installed on the top of the bottom plate 1, the two operation boxes 2 are fixedly connected on one side close to each other, U-shaped clamps are fixedly installed on the tops of the two operation boxes 2, the same delivery pipe 3 is fixedly installed on the tops of the two operation boxes 2 through two U-shaped clamps, two valves 1 are installed on the delivery pipe 3, three connecting pipes 4 are fixedly installed on the tops of the two operation boxes 2, and the tops of the six connecting pipes 4 are connected to the bottom of the delivery pipe 3 Fixed connection, six connecting pipes 4 are distributed linearly, one side of the two operation boxes 2 is fixedly installed with a connecting pipe 5, and the two connecting pipes 5 are installed with valves 2. The ends of the two connecting pipes 5 away from the two operation boxes 2 are fixedly installed with the same fixed pipe 6, and the fixed pipe 6 and the conveying pipe 3 are T-shaped, and both ends of the fixed pipe 6 and the conveying pipe 3 are sealed. The two sides of the two operation boxes 2 away from each other are provided with movable holes 7. Two strip blocks 8 are fixedly installed on the two operation boxes 2, and the four strip blocks 8 are distributed in a rectangular array. Two slide rods 9 are slidably installed on the four strip blocks 8. Eight The slide bars 9 correspond to each other in pairs, and two baffles 10 are fixedly installed on the eight slide bars 9. The two baffles 10 are respectively located on the sides of the two operating boxes 2 that are away from each other. The two baffles 10 are respectively adapted to the two movable holes 7 to ensure that the two baffles 10 can cover the two movable holes 7. A plurality of support plates 11 are fixedly installed on the sides of the two baffles 10 that are close to each other, and an activated carbon filter plate 12 is slidably installed on the plurality of support plates 11. Two triangular card slots 13 are provided on the eight slide bars 9, and an adjustment mechanism is installed on the four bar blocks 8. The four adjustment mechanisms include: a sliding cavity 14 , threaded rod 15, moving block 16 and triangular clamping block 17, the sliding cavity 14 is opened on the corresponding strip block 8, the threaded rod 15 is threadedly installed on the corresponding strip block 8, and a strip hole is provided at the bottom of the strip block 8 so that the threaded rod 15 can drive the moving block 16 to move forward and backward, a handle is fixedly installed at one end of the threaded rod 15, and the moving block 16 is rotatably installed on the end of the threaded rod 15 away from the handle. The moving block 16 is slidably installed in the sliding cavity 14, and the triangular clamping blocks 17 are all fixedly installed on one side of the moving block 16, and the triangular clamping blocks 17 are slidably installed in the corresponding triangular clamping grooves 13 respectively.

[0025] In order to facilitate the determination of the placement position of the activated carbon filter plate 12, prevent the activated carbon filter plate 12 from falling from the support plate 11, and prevent the air permeability of the activated carbon filter plate 12 on the support plate 11 from being affected, a plurality of support plates 11 are provided with a plurality of strip holes, and a frame block is fixedly installed on the top of the plurality of support plates 11, and the plurality of frame blocks are respectively adapted to the corresponding activated carbon filter plates 12.

[0026] In order to ensure the sealing of the two operating boxes 2, sealing gaskets 1 are fixedly installed on the sides of the two baffles 10 that are close to each other, and the two sealing gaskets 1 are respectively in contact with the sides of the two operating boxes 2 that are away from each other. The two sealing gaskets 1 are both frame-shaped, and the two sealing gaskets 1 are respectively in contact with one side of the four strip blocks 8. Sealing gaskets 2 are fixedly installed on multiple support plates 11, and the multiple sealing gaskets 2 are all U-shaped, and the multiple sealing gaskets 2 are respectively in sliding contact with the inner walls of the two operating boxes 2.

[0027] In order to ensure the stability of the multiple support plates 11 and reduce the weight of the multiple support plates 11, multiple pads are fixedly installed on the inner walls of the two operating boxes 2 on the side close to each other, and the tops of the multiple pads are in contact with the bottoms of the multiple support plates 11 respectively.

[0028] In order to reserve enough space for the moving block 16 and the triangular block 17 to move, and at the same time limit the movement tendency of the moving block 16, rectangular holes are provided on the bar blocks 8, the inner walls of the rectangular holes are respectively slidably connected to the sliding rods 9, the inner walls of one side of the sliding cavity 14 are respectively connected to the inner walls of the rectangular holes, side grooves are provided on the inner walls of both sides of the four sliding cavities 14, and square blocks are fixedly installed on both sides of the four moving blocks 16, and the square blocks are respectively slidably installed in the side grooves.

[0029] In order to limit the range of movement of the slide bar 9 and ensure that the triangular clamping block 17 can be accurately inserted into the corresponding triangular clamping groove 13 to prevent the slide bar 9 from sliding off the strip block 8, a limit block 1 is fixedly installed at one end of the slide bar 9 away from the two baffles 10, and a limit block 2 is fixedly installed on the slide bar 9.

[0030] A working method of a heating furnace flue gas denitrification mechanism includes heating furnace flue gas denitrification and heating furnace flue gas denitrification mechanism replacement, wherein the heating furnace flue gas denitrification includes the following steps: the flue gas will flow into an operating box 2 located on the left side through a fixed pipe located on the left side, after the flue gas enters the operating box 2, it will surge from bottom to top, gradually pass through a plurality of support plates 11 and a plurality of filter plates 12, and finally enter into a conveying pipe 3 through three connecting pipes 4 located on the left side, and then the conveying pipe 3 will convey the desulfurized flue gas to other equipment, and in the process of the flue gas passing through the plurality of filter plates 12, the nitrate in the flue gas will be retained in the filter plates 12, thereby achieving denitrification of the flue gas.

[0031] The replacement of the flue gas denitrification mechanism of the heating furnace includes the following steps:

[0032] 1) After the flue gas denitration mechanism of the heating furnace has been used for a period of time, close the valve 1 and valve 2 on the left side, and open the valve 1 and valve 2 on the right side, so that the flue gas flows into the operation box 2 on the right side, and the operation box 2 on the right side continues to denitrate the flue gas, and the operation box 2 on the left side is vacated to replace the filter plate 12:

[0033] 2) Rotate a threaded rod 15 on the left side of the operating box, and the threaded rod 15 will generate rotational contact with the moving block 16. By moving the threaded rod 15, the moving block 16 will slide in the sliding cavity 14. During the sliding process of the moving block 16, the triangular clamping block 17 fixedly connected thereto is driven, and the triangular clamping block 17 is moved out of the corresponding two triangular clamping grooves 13;

[0034] Pull the baffle 10 outward, and the baffle 10 will drive the multiple support plates 11 fixedly connected thereto to slide together, thereby pulling the multiple filter plates 12 out of the left operation box 2. After the multiple filter plates 12 are moved out of the operation box 2, the multiple filter plates 12 are replaced.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although 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 heating furnace flue gas denitrification mechanism, comprising a bottom plate and two operating boxes of the same structure mounted on the bottom plate, characterized in that: A U-shaped clamp is provided on the top of each of the operation boxes, a delivery pipe is fixedly installed on the U-shaped clamp, the delivery pipe is connected to the two operation boxes, and a valve 1 for controlling the two operation boxes respectively is installed on the delivery pipe; A connecting pipe is fixedly installed on the front side of each operation box, a valve 2 is installed on the connecting pipe, and a fixed pipe is connected to the connecting pipe; Two bar blocks are fixedly installed on each operation box, two slide bars are slidably installed on the bar blocks, baffles are fixedly installed on the slide bars, multiple support plates are fixedly installed on the baffles, filter plates are slidably installed on the multiple support plates, two triangular slots are provided on the slide bars, and an adjustment mechanism is installed on the bar blocks.

2. A heating furnace flue gas denitrification mechanism according to claim 1, characterized in that: The adjusting mechanism is provided with a sliding cavity, which is opened at the top of the strip block, and a strip hole is provided at the bottom of the strip block. A threaded rod is installed in the strip hole, and a moving block is slidably installed in the sliding cavity. The moving block is threadedly connected to the moving block through the threaded rod, and the moving block moves in the sliding cavity. A triangular clamping block is installed at the end of the moving block, and the triangular clamping block matches the triangular clamping groove.

3. A heating furnace flue gas denitrification mechanism according to claim 1, characterized in that: Three connecting pipes are fixedly installed on the top of the operation box, and the top ends of the connecting pipes are fixedly connected to the bottom ends of the conveying pipes.

4. A heating furnace flue gas denitrification mechanism according to claim 1, characterized in that: The fixed pipe and the conveying pipe are both T-shaped, and both ends of the fixed pipe and the conveying pipe are sealed.

5. A heating furnace flue gas denitrification mechanism according to claim 1, characterized in that: The operation box is provided with movable holes.

6. A heating furnace flue gas denitrification mechanism according to claim 2, characterized in that: A handle is provided at the end of the threaded rod.

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