Tail gas furnace nozzle with carbon deposition prevention function

Abstract

The utility model relates to the technical field of formaldehyde tail gas treatment, and discloses a tail gas furnace nozzle with a carbon deposition prevention function, which comprises an incinerator, two sides of the incinerator are both fixedly connected with a nozzle pipeline, the top of the nozzle pipeline is provided with a flame arrester, the bottom of the nozzle pipeline is provided with a lead-out valve, and the lead-out valve is connected with the flame arrester. A treatment box is fixedly connected to one side of the incinerator, a recycling and filtering assembly is arranged in the treatment box and comprises a transverse plate, a vertical plate, a water storage cavity, an activated carbon plate and an HEPA filtering plate, and the transverse plate is arranged in the treatment box. According to the tail gas furnace nozzle with the anti-carbon-deposition function, methanol in the pipeline can be completely discharged and recycled through the flame arrester and the nozzle pipeline, the problem of nozzle carbon deposition is solved, waste heat of tail gas can be recycled through the recycling and filtering assembly, dust and smoke dust in the tail gas are adsorbed through an activated carbon plate and an HEPA filtering plate, and the tail gas can be recycled through the recycling and filtering assembly. And the pollution to the air environment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of formaldehyde tail gas treatment, in particular to a tail gas furnace burner with an anti-carbon deposition function. Background Technique

[0002] In the last process of formaldehyde production, the main components of the tail gas are nitrogen, carbon dioxide, carbon monoxide, oxygen, hydrogen, etc. The main combustible components are carbon monoxide and hydrogen. The main method for tail gas treatment is to burn through a boiler to make the tail gas meet the discharge standards.

[0003] According to the patent application No. 202023198621.5, an explosion-proof ignition device for a formaldehyde tail gas incinerator is disclosed, which includes an incinerator and a tail gas inlet pipe. An air inlet and a tail gas inlet are arranged on the side wall of the incinerator. An air inlet plate is arranged inside the incinerator. Tail gas inlet channels are evenly distributed on the air inlet plate. A burner is arranged on the tail gas inlet channel. The upper end of the burner protrudes above the upper part of the air inlet plate. A tail gas pre-igniter is arranged between the burners evenly distributed on the air inlet plate. The tail gas pre-igniter is connected to a liquefied gas tank through a gas inlet pipe. The tail gas pre-igniter is a "Feng"-shaped tail gas pre-igniter made of welded high-temperature seamless steel pipes. The seven ports on the upper part of the "Feng"-shaped tail gas pre-igniter are all arranged inside the incinerator, and the ends of the ports are sealed tightly. The end of the lower port is permeable. Vent holes are evenly distributed on the upper part of the high-temperature seamless steel pipe forming the tail gas pre-igniter.

[0004] In the actual use process, the following problems still exist:

[0005] [[ID=

[17] ](1) After the tail gas furnace in the prior art introduces the tail gas, most of the methanol remaining in the burner pipe cannot be discharged in time. Under high-temperature long-term combustion, carbon deposition occurs, resulting in burner blockage. When igniting, there is a certain safety risk due to uneven spraying of the burner. On the other hand, after blockage, manual entry into the furnace is required to clean the burner, which poses a certain safety hazard.

[0006] (2) After the tail gas is burned and treated, it is directly discharged, and the waste heat of the tail gas cannot be recovered and utilized. At the same time, the tail gas is not filtered, which will cause some dust in the tail gas to enter the atmosphere, resulting in environmental pollution. Content of the Utility Model

[0007] Aiming at the deficiencies of the prior art, the utility model provides a tail gas furnace burner with an anti-carbon deposition function, which has the advantages of discharging all the methanol in the pipeline through the installation of a flame arrester and a discharge valve for recycling, solving the problem of carbon deposition of the burner, and being able to filter and treat the tail gas at the same time, and solves the problems proposed in the background technique.

[0008] The utility model provides the following technical solution: a tail gas furnace burner with an anti-carbon deposition function, comprising an incinerator, burner pipes are fixedly connected to both sides of the incinerator, a flame arrester is installed on the top of the burner pipe, a degassing valve is installed on the bottom of the burner pipe, a treatment box is fixedly connected to one side of the incinerator, and a recovery filter assembly is provided inside the treatment box;

[0009] The recovery and filtration assembly includes a horizontal plate, a vertical plate, a water storage cavity, an activated carbon plate, and a HEPA filter plate. The horizontal plate is arranged inside the treatment box, and a vertical plate is arranged between the horizontal plate and the inner top of the treatment box. A water storage cavity is formed between the horizontal plate and the inner bottom of the treatment box. An activated carbon plate is installed inside the treatment box, and a HEPA filter plate is also installed inside the treatment box.

[0010] Preferably, a fixed component is provided on one side of the processing box, and the fixed component includes a limiting sleeve, a rack, a block, a gear, a handwheel, and a slot. Both ends of one side of the processing box are fixedly connected to the limiting sleeve, the interior of the limiting sleeve is slidably connected to the rack, one end of the rack is fixedly connected to the block, a gear is meshed between the two racks, and one side of the gear is fixedly connected to a handwheel, and a slot is provided on one side of the activated carbon plate and the HEPA filter plate, and the block is located inside the slot.

[0011] Preferably, the horizontal plate is fixedly connected to the inner wall of the treatment box, the vertical plate is fixedly connected to the inner wall of the treatment box, and the activated carbon plate and the HEPA filter plate are both fixed inside the treatment box by a fixing assembly.

[0012] Preferably, an air outlet pipe is fixedly connected to the top of the incinerator, one end of the air outlet pipe passes through the top of the treatment box and passes through the water storage cavity, and the incinerator and the treatment box are communicated through the air outlet pipe.

[0013] Preferably, a water inlet pipe is fixedly connected to one side of the treatment box, and a water outlet pipe is fixedly connected to the other side of the treatment box.

[0014] Preferably, one side of the processing box is fixedly connected to a shell, and the hand wheel is rotatably connected to the outer wall of the shell.

[0015] Preferably, a handle is fixedly connected to one side of the activated carbon plate and the HEPA filter plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The tail gas furnace burner with anti-carbon deposition function can discharge and recycle all the methanol in the pipeline through the flame arrester and the burner pipe, solving the problem of carbon deposition in the burner. By setting up a recovery filter component, the waste heat of the tail gas can be recycled, and the activated carbon plate and HEPA filter plate can absorb the dust and smoke in the tail gas, reducing pollution to the air environment.

[0018] 2. The tail gas furnace burner with anti-carbon deposition function is convenient for personnel to install and remove the activated carbon plate and HEPA filter plate by providing a fixed component, and convenient for personnel to disassemble them for cleaning and replacement. By turning the hand wheel in conjunction with the gear, rack, and limit sleeve, the two blocks can be driven closer or farther away from each other, thereby fixing or removing the activated carbon plate and HEPA filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a tail gas furnace burner with an anti-carbon deposition function provided by the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of a treatment box for a tail gas furnace burner with an anti-carbon deposition function provided by the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of a treatment box of a tail gas furnace burner with an anti-carbon deposition function provided by the utility model;

[0022] Figure 4 This is a schematic diagram of the fixed component structure of a tail gas furnace burner with an anti-carbon deposition function provided by the utility model.

[0023] In the figure: 1. Incinerator; 2. Burner pipe; 3. Flame arrester; 4. Export valve; 5. Exhaust pipe; 6. Processing box; 7. Recovery filter assembly; 701. Horizontal plate; 702. Vertical plate; 703. Water storage cavity; 704. Activated carbon plate; 705. HEPA filter plate; 8. Fixing assembly; 801. Limit sleeve; 802. Rack; 803. Block; 804. Gear; 805. Handwheel; 806. Slot; 9. Water inlet pipe; 10. Water outlet pipe; 11. Shell; 12. Handle. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figures 1 to 3, a tail gas furnace burner with an anti-carbon deposition function, comprising an incinerator 1, burner pipes 2 are fixedly connected to both sides of the incinerator 1, a flame arrester 3 is installed on the top of the burner pipe 2, and a dewatering valve 4 is installed at the bottom of the burner pipe 2, and a treatment box 6 is fixedly connected to one side of the incinerator 1, and a recovery filter component 7 is provided inside the treatment box 6, and the recovery filter component 7 includes a horizontal plate 701, a vertical plate 702, a water storage cavity 703, an activated carbon plate 704, and a HEPA filter plate 705. The horizontal plate 701 is arranged inside the treatment box 6, and the vertical plate 702 is arranged between the horizontal plate 701 and the inner top of the treatment box 6. A water storage cavity 703 is formed between the horizontal plate 701 and the inner bottom of the treatment box 6, an activated carbon plate 704 is installed inside the treatment box 6, and a HEPA filter plate 705 is also installed inside the treatment box 6;

[0026] A flame arrester 3 is installed at the nearest position of the straight pipe section close to the burner pipe 2 to prevent the pressure of the furnace fan and exhaust gas from being higher than the external atmospheric pressure when methanol is discharged, thereby causing backfire and safety accidents. A derivation valve 4 is installed at the lowest point of the pipeline. Each time the methanol is poured out of the exhaust gas, all the methanol in the pipeline will be discharged and recovered to solve the problem of carbon deposition on the burner.

[0027] See also Figures 1 to 3 , the horizontal plate 701 is fixedly connected to the inner wall of the treatment box 6, the vertical plate 702 is fixedly connected to the inner wall of the treatment box 6, the activated carbon plate 704 and the HEPA filter plate 705 are fixed to the inside of the treatment box 6 by the fixing assembly 8, the top of the incinerator 1 is fixedly connected with the air outlet pipe 5, one end of the air outlet pipe 5 passes through the top of the treatment box 6 and passes through the water storage cavity 703, the incinerator 1 and the treatment box 6 are communicated through the air outlet pipe 5, one side of the treatment box 6 is fixedly connected to the water inlet pipe 9, and the other side of the treatment box 6 is fixedly connected to the water outlet pipe 10;

[0028] By providing the recovery filter assembly 7, the waste heat of the tail gas can be recovered and utilized, and the activated carbon plate 704 and the HEPA filter plate 705 adsorb dust and smoke in the tail gas, thereby reducing pollution to the air environment.

[0029] See also Figures 1 to 4, a fixed component 8 is provided on one side of the processing box 6, and the fixed component 8 includes a limiting sleeve 801, a rack 802, a block 803, a gear 804, a handwheel 805, and a slot 806. Both ends of one side of the processing box 6 are fixedly connected to the limiting sleeve 801, and the interior of the limiting sleeve 801 is slidably connected to the rack 802, one end of the rack 802 is fixedly connected to the block 803, and a gear 804 is meshed between the two racks 802. One side of the gear 804 is fixedly connected to the handwheel 805, and one side of the activated carbon plate 704 and the HEPA filter plate 705 is provided with a slot 806, and the block 803 is located inside the slot 806. One side of the processing box 6 is fixedly connected to the shell 11, and the handwheel 805 is rotatably connected to the outer wall of the shell 11. One side of the activated carbon plate 704 and the HEPA filter plate 705 is fixedly connected to the handle 12;

[0030] By providing a fixing component 8, it is convenient for personnel to install and remove the activated carbon plate 704 and the HEPA filter plate 705, and it is convenient for personnel to disassemble them for cleaning and replacement. By rotating the handwheel 805 in conjunction with the gear 804, the rack 802, and the limit sleeve 801, the two blocks 803 can be driven closer to or away from each other, thereby fixing or removing the activated carbon plate 704 and the HEPA filter plate 705.

[0031] In the present invention, the working principle of the device is as follows:

[0032] When in use, a flame arrester 3 is installed at the nearest position of the straight pipe section near the burner pipe 2 to prevent the pressure of the furnace fan and tail gas from being higher than the external atmospheric pressure when methanol is discharged, thereby causing backfire and a safety accident. A degassing valve 4 is installed at the lowest point of the pipeline. Every time the methanol tail gas is poured out, all the methanol in the pipeline is discharged and recycled, solving the problem of carbon deposition on the burner. After the tail gas enters the incinerator 1 for combustion treatment, it enters the interior of the treatment box 6 through the outlet pipe 5, so that the tail gas flows out after passing through the water storage cavity 703. Water is introduced into the water storage cavity 703 through the water inlet pipe 9. The high-temperature tail gas will exchange heat with the water to heat the water. The heated water flows out from the water outlet pipe 10, thereby achieving the effect of recycling the waste heat of the tail gas. The outgoing tail gas passes through the activated carbon plate 704 and the HEPA filter plate 705, and the activated carbon plate 704 and the HEPA filter plate 705 adsorb dust and smoke in the tail gas, reducing pollution to the air environment.

[0033] When the activated carbon plate 704 and the HEPA filter plate 705 are adsorbed for a long time and need to be disassembled and cleaned, the gear 804 is driven to rotate by turning the hand wheel 805, and the racks 802 on both sides are driven to move, so that the racks 802 slide in the limit sleeve 801, and the block 803 is driven to move horizontally, so that the distance between the block 803 and the slot 806 is increased. When the block 803 is completely disengaged from the slot 806, the activated carbon plate 704 or the HEPA filter plate 705 can be pulled out by pulling the handle 12 for cleaning and replacement.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tail gas furnace burner with an anti-carbon deposition function, comprising an incinerator (1), characterized in that: Both sides of the incinerator (1) are fixedly connected to burner pipes (2), a flame arrester (3) is installed on the top of the burner pipe (2), and a dewatering valve (4) is installed on the bottom of the burner pipe (2); one side of the incinerator (1) is fixedly connected to a treatment box (6), and a recovery filter assembly (7) is provided inside the treatment box (6); The recovery filter assembly (7) comprises a transverse plate (701), a vertical plate (702), a water storage cavity (703), an activated carbon plate (704), and a HEPA filter plate (705); the transverse plate (701) is arranged inside the treatment box (6); the vertical plate (702) is arranged between the transverse plate (701) and the inner top of the treatment box (6); a water storage cavity (703) is formed between the transverse plate (701) and the inner bottom of the treatment box (6); the activated carbon plate (704) is installed inside the treatment box (6); and the HEPA filter plate (705) is also installed inside the treatment box (6).

2. The tail gas furnace burner with anti-carbon deposition function according to claim 1, characterized in that: A fixing assembly (8) is provided on one side of the treatment box (6), and the fixing assembly (8) comprises a limiting sleeve (801), a rack (802), a block (803), a gear (804), a handwheel (805), and a slot (806). Both ends of one side of the treatment box (6) are fixedly connected to the limiting sleeve (801), the interior of the limiting sleeve (801) is slidably connected to the rack (802), one end of the rack (802) is fixedly connected to the block (803), a gear (804) is meshed between the two racks (802), and one side of the gear (804) is fixedly connected to the handwheel (805). A slot (806) is provided on one side of the activated carbon plate (704) and the HEPA filter plate (705), and the block (803) is located inside the slot (806).

3. The tail gas furnace burner with anti-carbon deposition function according to claim 1, characterized in that: The horizontal plate (701) is fixedly connected to the inner wall of the treatment box (6), the vertical plate (702) is fixedly connected to the inner wall of the treatment box (6), and the activated carbon plate (704) and the HEPA filter plate (705) are both fixed inside the treatment box (6) through a fixing assembly (8).

4. The tail gas furnace burner with anti-carbon deposition function according to claim 1, characterized in that: An air outlet pipe (5) is fixedly connected to the top of the incinerator (1), one end of which passes through the top of the treatment box (6) and the water storage cavity (703). The incinerator (1) and the treatment box (6) are in communication via the air outlet pipe (5).

5. The tail gas furnace burner with anti-carbon deposition function according to claim 1, characterized in that: One side of the treatment box (6) is fixedly connected to a water inlet pipe (9), and the other side of the treatment box (6) is fixedly connected to a water outlet pipe (10).

6. The tail gas furnace burner with anti-carbon deposition function according to claim 2, characterized in that: One side of the processing box (6) is fixedly connected to a housing (11), and the hand wheel (805) is rotatably connected to the outer wall of the housing (11).

7. The tail gas furnace burner with anti-carbon deposition function according to claim 1, characterized in that: A handle (12) is fixedly connected to one side of the activated carbon plate (704) and the HEPA filter plate (705).

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