Regeneration device of CO catalytic combustion furnace

Abstract

The utility model discloses a regeneration device of a CO catalytic combustion furnace, and belongs to the field of CO catalytic combustion. A CO catalytic combustion furnace regeneration device comprises a combustion chamber provided with a heating pipe and further comprises a sleeve arranged on the heating pipe in a sleeving mode, the sleeve is connected into the combustion chamber in a sliding mode, the sleeve is rotationally connected with a cleaning pipe, the inner wall of the cleaning pipe is fixedly connected with a scraper blade, the scraper blade is spiral, the contact end of the scraper blade is attached to the outer wall of the heating pipe, and the contact end of the scraper blade is fixedly connected with the cleaning pipe. When the cleaning pipe rotates, impurities on the outer wall of the heating pipe move towards the outlet end of the cleaning pipe; the high-pressure spray head is fixedly connected to the outer wall of the sleeve, and the air spraying end of the high-pressure spray head faces the outlet end of the cleaning pipe; according to the utility model, high-pressure air injection can be carried out on impurities scraped by the electric heating pipe through the high-pressure nozzle, so that the quantity of ash attached and accumulated on the surface of the electric heating pipe is reduced, the device can continuously work for combustion catalysis, the heating performance of the electric heating pipe can be improved, and the heating effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of CO catalytic combustion, in particular to a CO catalytic combustion furnace regeneration device. Background Art

[0002] VOCs are toxic organic waste gases, which will cause air pollution if discharged directly. VOCs can be decomposed into CO2 and H2O at high temperature with CO as a catalyst, thus avoiding VOCs from polluting the air. When purifying VOCs, a CO catalytic combustion furnace is needed. The main process is to first transport the VOCs waste gas into the spray tower for washing. The cyclone spray tower can efficiently remove various acid mists, alkaline water-soluble gases and filter most of the dust, etc. After washing in the spray tower, it enters the dry filter box for dehydration and further dust reduction. This is to prevent the waste gas from bringing in a small amount of water vapor and a small amount of dust into the adsorption purification device system, thereby causing the activated carbon to become damp and clogged, resulting in reduced adsorption effect. After purification in the dry filter box, it is adsorbed by the activated carbon adsorption box. When the activated carbon adsorption box is saturated, the activated carbon needs to be desorbed and regenerated to restore the adsorption function of the activated carbon and achieve a circulation effect. Fresh air is transported to the fresh air heat exchanger through a fan, and the temperature is raised to a predetermined value before entering the carbon box that needs to be desorbed. The high-concentration VOCs organic waste gas that has been desorbed will enter the combustion furnace for catalytic combustion. An electric heating tube is provided in the combustion furnace for heating operations. The exhaust gas after combustion is discharged, and part of the exhaust gas returns to the adsorption box for circulation. The final product is harmless CO2 and H2O, as well as heteroatom organic compounds and gas combustion products, thereby achieving the effect of CO catalytic combustion regeneration.

[0003] After searching, the patent publication number: CN215892395U discloses a large-flux CO catalytic combustion equipment. Although the organic waste gas is blocked and guided, the flow time of the organic waste gas in the catalytic chamber is increased, thereby ensuring that the organic waste gas has enough time to produce a gas-solid reaction with the catalyst, so that the organic gas is oxidized and decomposed into non-toxic carbon dioxide and water molecules.

[0004] However, this solution is to control the electric heating tube to heat the exhaust gas in the catalytic chamber through a control panel. The exhaust gas still contains some impurities, which will produce ash when burned, and some impurities will adhere to and accumulate on the surface of the electric heating tube. There is no cleaning mechanism in this solution, resulting in more and more ash attached to the surface of the electric heating tube as the device is used for a longer time, and the heating effect of the organic waste gas becomes worse and worse. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that impurities in the prior art will produce ash when burned, and some impurities will adhere to and accumulate on the surface of the electric heating tube, and no cleaning mechanism is provided in the scheme, resulting in more and more ash adhering to the surface of the electric heating tube as the use time of the device increases, and then the heating effect of the organic waste gas becomes worse and worse, and a CO catalytic combustion furnace regeneration device is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A CO catalytic combustion furnace regeneration device comprises a combustion chamber provided with a heating tube, and further comprises: a sleeve sleeved on the heating tube, and the sleeve is slidably connected in the combustion chamber, wherein a cleaning tube is rotatably connected to the sleeve, a scraper is fixedly connected to the inner wall of the cleaning tube, the scraper is spiral, and the contact end of the scraper is in contact with the outer wall of the heating tube, when the cleaning tube rotates, impurities on the outer wall of the heating tube move toward the outlet end of the cleaning tube; a high-pressure nozzle is fixedly connected to the outer wall of the sleeve, and the jet end of the high-pressure nozzle faces the outlet end of the cleaning tube.

[0008] In order to facilitate the rotation of the cleaning tube, preferably, a mounting seat is fixedly connected to the sleeve, a rotating shaft is rotatably connected to the mounting seat, an auxiliary gear is fixedly connected to the rotating shaft, teeth are provided on the outer wall of the cleaning tube, and the auxiliary gear is meshed with the teeth.

[0009] In order to facilitate the rotation of the auxiliary gear, further, an extension plate is fixedly connected to the rotating shaft, and the extension plate is arranged between the high-pressure nozzle and the cleaning pipe, and the extension surface of the extension plate can cooperate with the air outlet of the high-pressure nozzle.

[0010] In order to facilitate the reciprocating displacement of the sleeve, preferably, a limit plate is fixedly connected in the combustion chamber, a reciprocating screw is rotatably connected to the limit plate, a movable block is threadedly connected to the reciprocating screw, and the sleeve is fixedly connected to the movable block.

[0011] In order to facilitate the rotation of the reciprocating screw, preferably, a driving machine is arranged outside the combustion chamber, and the reciprocating screw is fixedly connected to the output end of the driving machine.

[0012] In order to facilitate the adsorption of impurities on the bottom of the combustion chamber, preferably, a mounting plate is fixedly connected to the inner wall of the combustion chamber, a negative pressure suction plate is slidably connected to the mounting plate, and the adsorption end of the negative pressure suction plate faces the inner bottom of the combustion chamber.

[0013] Compared with the prior art, the utility model provides a CO catalytic combustion furnace regeneration device, which has the following beneficial effects:

[0014] 1. The CO catalytic combustion furnace regeneration device pushes or guides the impurities forward along the surface of the spiral scraper through the spiral scraper, and then pushes the impurities to the outside of the cleaning tube, and then uses the high-pressure nozzle to spray high-pressure air to the impurities scraped off the electric heating tube, thereby reducing the amount of ash adhering to and accumulating on the surface of the electric heating tube, thereby ensuring that the device can continue to work and burn catalytically, thereby improving the heating performance of the electric heating tube and improving the heating effect;

[0015] 2. The CO catalytic combustion furnace regeneration device uses a negative pressure suction plate to absorb impurities at the bottom of the combustion chamber, thereby reducing the impact of impurities on the electric heating tube.

[0016] The parts not involved in the device are the same as the existing technology or can be implemented by the existing technology. The utility model can use a high-pressure nozzle to spray high-pressure air on the impurities scraped off the electric heating tube, thereby reducing the amount of ash adhering to and accumulating on the surface of the electric heating tube, thereby ensuring that the device can continue to work combustion catalysis, thereby improving the heating performance of the electric heating tube and improving the heating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of a combustion chamber of a CO catalytic combustion furnace regeneration device proposed by the utility model;

[0018] Figure 2 This is a partial structural diagram of a CO catalytic combustion furnace regeneration device proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of a cleaning tube of a CO catalytic combustion furnace regeneration device proposed by the utility model from a first perspective;

[0020] Figure 4 This is a schematic diagram of a cleaning tube of a CO catalytic combustion furnace regeneration device proposed by the utility model from a second perspective.

[0021] In the figure: 1. combustion chamber; 2. limit plate; 201. reciprocating screw; 202. movable block; 3. sleeve; 4. cleaning pipe; 401. scraper; 5. high-pressure nozzle; 6. mounting seat; 601. auxiliary gear; 602. extension plate; 7. negative pressure suction plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] Example:

[0025] Reference Figure 1-Figure 4 A CO catalytic combustion furnace regeneration device includes a combustion chamber 1 provided with an electric heating tube, which is used to heat the gas entering the combustion chamber 1. When it is necessary to clean the impurities on the electric heating tube, the combustion chamber 1 can be paused as needed to wait for the electric heating tube to cool down before cleaning. A limit plate 2 is fixedly connected in the combustion chamber 1, and a reciprocating screw 201 is rotatably connected to the limit plate 2. A movable block 202 is threadedly connected to the reciprocating screw 201, and the movable block 202 is in contact with the inner wall of the limit plate 2 to prevent the movable block 202 from shaking during movement.

[0026] A driving machine is also provided on the outer wall of the combustion chamber 1, and the reciprocating screw 201 is fixedly connected to the output end of the driving machine, and the driving machine can be a cylinder or a motor, and the cylinder can convert the linear motion into the rotational motion of the rotating shaft to control the rotation of the reciprocating screw 201, and then the sleeve 3 is fixedly connected to the movable block 202, and the sleeve 3 is sleeved on the outside of the heating tube, and a cleaning tube 4 is also rotatably connected to the sleeve 3, which can be rotated by an external driving device, such as a pneumatic motor or a hydraulic motor.

[0027] In addition, a scraper 401 is fixedly connected to the inner wall of the cleaning tube 4, and the scraper 401 is spiral, and at least three groups are provided. When the cleaning tube 4 rotates, the spiral scraper 401 will push or guide the impurities forward along the surface of the spiral scraper 401, and then push the impurities to the outside of the cleaning tube 4.

[0028] In order to clean the impurities, a high-pressure nozzle 5 is fixedly connected to the outer wall of the sleeve 3, and the high-pressure nozzle 5 can be connected to the output end of the external negative pressure pump or the output end of the high-pressure air pump through a pipeline, and the jet end of the high-pressure nozzle 5 is facing the outlet end of the cleaning pipe 4.

[0029] At this time, the impurities accumulated on the outside of the cleaning tube 4 can be sprayed with high pressure through the high-pressure nozzle 5, and the movable block 202 will continuously drive the sleeve 3 to move back and forth on the outside of the electric heating tube, so that the scraper 401 inside it can continuously scrape off the external impurities, and then the impurities scraped off on the electric heating tube are sprayed with high pressure through the high-pressure nozzle 5, thereby reducing the amount of ash attached to and accumulated on the surface of the electric heating tube, thereby ensuring that the device can continue to work combustion catalysis, thereby improving the heating performance of the electric heating tube and improving the heating effect.

[0030] Embodiment 2:

[0031] Reference Figure 3-Figure 4 In order to facilitate the convenient rotation of the cleaning tube 4, a mounting seat 6 is fixedly connected to the sleeve 3, a rotating shaft is rotatably connected to the mounting seat 6, and an auxiliary gear 601 is fixedly connected to the rotating shaft, and meshing teeth can be provided on the outer wall of the cleaning tube 4, and the auxiliary gear 601 is meshed with the meshing teeth. When the rotating shaft rotates, the cleaning tube 4 can rotate in real time with the rotating shaft.

[0032] In addition, an extension plate 602 is fixedly connected to the rotating shaft, and the extension plate 602 is arranged between the high-pressure nozzle 5 and the cleaning tube 4, and the extension surface of the extension plate 602 can cooperate with the air outlet of the high-pressure nozzle 5. The principle is that when the high-pressure nozzle 5 sprays water, the extension plate 602 on the rotating shaft can be driven to rotate by the spray direction of the high-pressure nozzle 5, and when the rotating shaft rotates, the cleaning tube 4 can rotate in real time with the rotating shaft. On the one hand, the high-pressure nozzle 5 can clean impurities on the surface of the electric heating tube, and on the other hand, it can also drive the cleaning tube 4 to rotate.

[0033] A mounting plate is fixedly connected to the inner wall of the combustion chamber 1, and a negative pressure suction plate 7 is slidably connected to the mounting plate. The negative pressure suction plate 7 can be connected to the suction end of the dust collector. A connecting rod can be arranged on the negative pressure suction plate 7, and the position of the negative pressure suction plate 7 can be changed by pulling the connecting rod. A suction hole is arranged on the negative pressure suction plate 7, and the suction end of the negative pressure suction plate 7 faces the inner bottom of the combustion chamber 1, which is used to adsorb impurities that fall to the bottom of the combustion chamber 1. When the cleaning pipe 4 is cleaned, the high-pressure nozzle 5 is prohibited from venting air. At this time, wait for ten minutes, and the impurities inside the combustion chamber 1 will fall to the inner bottom of the combustion chamber 1 under the action of gravity, and then the negative pressure suction plate 7 is used to adsorb the internal impurities, thereby reducing the influence of impurities on the electric heating tube.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A CO catalytic combustion furnace regeneration device, comprising a combustion chamber (1) provided with a heating tube, characterized in that: Also includes: A sleeve (3) is sleeved on the heating tube, and the sleeve (3) is slidably connected in the combustion chamber (1). The sleeve (3) is rotatably connected to a cleaning tube (4), the inner wall of the cleaning tube (4) is fixedly connected to a scraper (401), the scraper (401) is spiral-shaped, and the contact end of the scraper (401) is in contact with the outer wall of the heating tube. When the cleaning tube (4) rotates, impurities on the outer wall of the heating tube move toward the outlet end of the cleaning tube (4); The high-pressure nozzle (5) is fixedly connected to the outer wall of the sleeve (3), and the jet end of the high-pressure nozzle (5) faces the outlet end of the cleaning pipe (4).

2. A CO catalytic combustion furnace regeneration device according to claim 1, characterized in that: The sleeve (3) is fixedly connected to a mounting seat (6), the mounting seat (6) is rotatably connected to a rotating shaft, the rotating shaft is fixedly connected to an auxiliary gear (601), and the outer wall of the cleaning tube (4) is provided with teeth, and the auxiliary gear (601) is meshed with the teeth.

3. A CO catalytic combustion furnace regeneration device according to claim 2, characterized in that: An extension plate (602) is fixedly connected to the rotating shaft, and the extension plate (602) is arranged between the high-pressure nozzle (5) and the cleaning pipe (4), and the extension surface of the extension plate (602) can cooperate with the air outlet of the high-pressure nozzle (5).

4. A CO catalytic combustion furnace regeneration device according to claim 1, characterized in that: A limit plate (2) is fixedly connected in the combustion chamber (1), a reciprocating screw (201) is rotatably connected to the limit plate (2), a movable block (202) is threadedly connected to the reciprocating screw (201), and the sleeve (3) is fixedly connected to the movable block (202).

5. A CO catalytic combustion furnace regeneration device according to claim 4, characterized in that: A driving machine is arranged outside the combustion chamber (1), and the reciprocating screw rod (201) is fixedly connected to the output end of the driving machine.

6. A CO catalytic combustion furnace regeneration device according to claim 1, characterized in that: A mounting plate is fixedly connected to the inner wall of the combustion chamber (1), a negative pressure suction plate (7) is slidably connected to the mounting plate, and the suction end of the negative pressure suction plate (7) faces the inner bottom of the combustion chamber (1).

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