Carbon fiber production waste gas high-temperature oxidation device

Abstract

The utility model relates to the technical field of oxidation devices, and provides a carbon fiber production waste gas high-temperature oxidation device which comprises an oxidation box, a gas transmission cylinder, a gas transmission seat, a gas transmission hopper, a heating plate group, a gas supply pipe, a condensation box, a condensation assembly and a collection hopper, a gas inlet valve is arranged on the gas inlet pipe, the gas conveying seat is arranged on the gas conveying cylinder, and the gas conveying hopper is communicated with one side of the gas conveying cylinder, so that the carbon fiber production waste gas can uniformly enter the oxidation box, the carbon fiber production waste gas is in full contact with the heating plate group, and the carbon fiber production waste gas can be fully oxidized by the heating plate group; the heating plate set is located on one side of the gas conveying hopper, and the gas supply pipe communicates with the oxidation box. By means of the technical scheme, the problem that in the prior art, water generated after oxygenolysis is inconvenient to collect and treat is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of oxidation device, concretely relates to a carbon fiber production waste gas high temperature oxidation device. BACKGROUND

[0002] Carbon fiber is a kind of new fiber material of high-strength, high-modulus fiber with carbon content more than 90%, and waste gas containing various organic pollutants (such as PAN fiber, small molecule organic matter etc.) is generated in the production process of carbon fiber, and high-temperature oxidation is an effective waste gas treatment method, which principle is that organic pollutants in waste gas are oxidized and decomposed into carbon dioxide and water under the condition of high temperature (usually 700-1000 DEG C) and sufficient oxygen;

[0003] Through the search, the utility model of patent announcement No. CN221062253U discloses a kind of carbon fiber production waste gas high temperature oxidation device, when using, waste gas generated when carbon fiber is produced enters from oxidation box air inlet side, waste gas is reduced in flow rate when passing through deceleration fan blade, and enter to middle part of oxidation box, subsequently, heater heats waste gas, waste gas is oxidized sufficiently under high temperature condition, waste gas high-temperature oxidation gas is generated, then the gas after oxidation is collected in oxidation box tail part, it is convenient for the sufficient oxidation of carbon fiber production waste gas, but carbon fiber production waste gas is usually decomposed into carbon dioxide and water after being oxidized, water produced after decomposition can be adhered to heater and oxidation box interior as water vapor, easily affect the heating effect of heater to waste gas, thereby easily affect the high-temperature oxidation effect of carbon fiber production waste gas. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of carbon fiber production waste gas high temperature oxidation device, solve the problem of not being convenient for the collection and processing of water produced after oxidation decomposition in the related art.

[0005] The technical scheme of the utility model is as follows: a kind of carbon fiber production waste gas high temperature oxidation device, including oxidation box, gas cylinder, gas seat, gas hopper, heating plate group, gas supply pipe, condensing box, condensing assembly and collection hopper;

[0006] The gas cylinder is communicated at one side of the oxidation box;

[0007] The gas seat is arranged on the gas cylinder;

[0008] The gas hopper is communicated at one side of the gas cylinder;

[0009] The heating plate group is installed in the oxidation box, and the heating plate group is located at one side of the gas hopper;

[0010] The gas supply pipe is communicated on the oxidation box;

[0011] The condensing box is fixedly connected to the top end of the oxidation box, and a vent is formed between the condensing box and the oxidation box;

[0012] The condensing assembly is arranged in the condensing box;

[0013] The collecting bucket is located at the lower side of the condensing assembly.

[0014] Further, the condensing assembly comprises:

[0015] The water inlet pipe is communicated to one side of the condensing box, and a water inlet valve is arranged on the water inlet pipe;

[0016] The water outlet pipe is communicated to the other side of the condensing box, and a water outlet valve is arranged on the water outlet pipe;

[0017] The condensing pipe group is communicated between the water inlet pipe and the water outlet pipe;

[0018] The condensing plate body is fixedly connected to the inner side wall of the condensing box, and is located between the condensing pipe group and the collecting bucket.

[0019] Further, the gas conveying seat comprises:

[0020] The mounting seat is fixedly connected to one side of the gas conveying cylinder;

[0021] The motor is arranged on the mounting seat, and the output end of the motor is in penetrating connection with the gas conveying cylinder;

[0022] The conveying rod is fixedly connected to the output end of the motor;

[0023] The spiral conveying piece is fixedly connected to the conveying rod.

[0024] Further, one side of the oxidation box is provided with a cleaning opening, and a sealing door is detachably connected to the cleaning opening.

[0025] Further, one side of the collecting bucket is communicated with a drain pipe, and a drain valve is arranged on the drain pipe.

[0026] Further, a plurality of mounting racks are fixedly connected to the sealing door, and mounting screws are threadedly connected between the mounting racks and the oxidation box.

[0027] Further, the top end of the gas conveying cylinder is communicated with an air inlet pipe, and an air inlet valve is arranged on the air inlet pipe.

[0028] The working principle and beneficial effects of the utility model are as follows:

[0029] 1. In the present invention, the gas delivery seat facilitates the slow flow of carbon fiber production waste gas in the gas delivery cylinder. The cooperation of the gas delivery cylinder and the gas delivery hopper allows the carbon fiber production waste gas to evenly enter the oxidation box, so that the heating plate group is in full contact with the carbon fiber production waste gas and the carbon fiber production waste gas is fully oxidized, thereby improving the oxidation and decomposition effect of the carbon fiber production waste gas.

[0030] 2. In the utility model, the oxidized carbon fiber production waste gas can be easily introduced into the condensation box through the vent. By continuously flowing cold water into the condensation tube group, the carbon fiber production waste gas and water vapor can be condensed. At the same time, the condensed water can be collected and discharged through the collecting bucket, thereby facilitating the collection and treatment of the water generated after the oxidation and decomposition of the carbon fiber production waste gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0032] Fig. 1 It is a schematic diagram of the overall structure of the utility model;

[0033] Fig. 2 This is a schematic diagram of the structure of the utility model in cross section;

[0034] Fig. 3 This is a schematic diagram of the structure of the mounting base, motor and conveying rod of the utility model;

[0035] Fig. 4 This is a schematic diagram of the structure of the collection bucket and drainage pipe of the utility model.

[0036] In the figure: 1. Oxidation box; 2. Gas cylinder; 3. Gas hopper; 4. Heating plate assembly; 5. Gas supply pipe; 6. Condensation box; 7. Collecting hopper; 8. Water inlet pipe; 9. Water outlet pipe; 10. Condensation pipe assembly; 11. Condensation plate body; 12. Mounting base; 13. Motor; 14. Conveying rod; 15. Screw conveyor; 16. Sealing door; 17. Drain pipe; 18. Mounting bracket; 19. Mounting screws; 20. Inlet pipe; 21. Exhaust pipe. DETAILED DESCRIPTION

[0037] The following will be combined with 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.

[0038] like Figs. 1-4As shown, this embodiment proposes a high-temperature oxidation device for carbon fiber production waste gas, including an oxidation box 1, a gas cylinder 2, a gas seat, a gas hopper 3, a heating plate group 4, an air supply pipe 5, a condensation box 6, a condensation component and a collection bucket 7. The gas cylinder 2 is connected to one side of the oxidation box 1, and the top of the gas cylinder 2 is connected to an air intake pipe 20. The air intake pipe 20 is provided with an air intake valve. When the air intake valve is opened, the carbon fiber production waste gas can enter the gas cylinder 2 through the air intake pipe 20. The gas seat is provided on the gas cylinder 2, and the gas hopper 3 is connected to one side of the gas cylinder 2, so that the carbon fiber production waste gas can be evenly introduced into the oxidation box 1, so that the carbon fiber production waste gas can be evenly introduced into the oxidation box 1. The gas is in full contact with the heating plate group 4 so that the heating plate group 4 can fully oxidize the carbon fiber production waste gas. The waste gas undergoes a full oxidation reaction under high temperature conditions to generate high-temperature oxidized gas of the waste gas, thereby improving the treatment quality of the waste gas. The heating plate group 4 is installed in the oxidation box 1, and the heating plate group 4 is located on one side of the gas delivery hopper 3. The heating plate group 4 is used to provide a high-temperature environment and perform high-temperature oxidation on the carbon fiber production waste gas. The air supply pipe 5 is connected to the oxidation box 1. The air supply pipe 5 can be connected to equipment such as a blower. Equipment such as a blower can send air and other gases into the oxidation box 1 at an appropriate flow rate, and air can be used as a combustion-supporting gas. The condensation box 6 is fixedly connected to the top of the oxidation box 1, and a vent is provided between the condensation box 6 and the oxidation box 1, so that the oxidized carbon fiber production waste gas can enter the vent. The condensation component is arranged in the condensation box 6, and the collecting bucket 7 is located at the lower side of the condensation component. One side of the collecting bucket 7 is connected to the drain pipe 17, and the drain pipe 17 is provided with a drain valve. The collecting bucket 7 can collect condensed water and open the drain valve to facilitate the condensed water to be discharged through the drain pipe 17 for treatment. The top of the condensation box 6 is connected to the exhaust pipe 21, and the exhaust pipe 21 is provided with an exhaust valve. When the exhaust valve is opened, the treated waste gas can be discharged through the exhaust pipe 21 for subsequent treatment.

[0039] Specifically, the condensation assembly includes an inlet pipe 8, an outlet pipe 9, a condensation pipe group 10, and a condensation plate body 11. The inlet pipe 8 is connected to one side of the condensation tank 6, and an inlet valve is installed on the inlet pipe 8. The outlet pipe 9 is connected to the other side of the condensation tank 6, and an outlet valve is provided on the outlet pipe 9. The condensation pipe group 10 is connected between the inlet pipe 8 and the outlet pipe 9. The condensation plate body 11 is fixedly connected to the inner wall of the condensation tank 6, and the condensation plate body 11 is located between the condensation pipe group 10 and the collection bucket 7.

[0040] The water inlet valve and the water outlet valve are opened, and the cooling water can flow through the condenser tube group 10 to condense the water vapor generated when the carbon fiber production waste gas is oxidized. The condensed water can flow through the condensation plate body 11 into the collection bucket 7 for collection.

[0041] Specifically, the gas delivery seat includes a mounting seat 12, a motor 13, a delivery rod 14 and a spiral delivery piece 15. The mounting seat 12 is fixedly connected to one side of the gas delivery cylinder 2. The motor 13 is installed on the mounting seat 12, and the output end of the motor 13 is connected to the gas delivery cylinder 2. The delivery rod 14 is fixedly connected to the output end of the motor 13, and the spiral delivery piece 15 is fixedly connected to the delivery rod 14.

[0042] When the carbon fiber production waste gas enters the gas delivery cylinder 2, the motor 13 is started to make the delivery rod 14 drive the spiral delivery piece 15 to rotate slowly, so as to slowly deliver the carbon fiber production waste gas.

[0043] Specifically, a cleaning port is opened on one side of the oxidation box 1, and a sealing door 16 is detachably connected to the cleaning port. A plurality of mounting brackets 18 are fixedly connected to the sealing door 16, and the plurality of mounting brackets 18 are threadedly connected to the oxidation box 1 with mounting screws 19;

[0044] Through the cleaning port, the inside of the oxidation box 1 can be cleaned, and the heating plate group 4 can be cleaned and replaced. At the same time, after the sealing door 16 is installed at the cleaning port, multiple mounting brackets 18 and the oxidation box 1 are connected by multiple mounting screws 19. The sealing door 16 can be stably installed on the oxidation box 1 to facilitate protection of the inside of the oxidation box 1.

[0045] It should be further explained that in actual use, high-precision temperature monitoring equipment, such as thermocouples, can be installed in the oxidation box 1 to monitor the temperature in the oxidation box 1 in real time, and a temperature control device can be provided to adjust the fuel supply or exhaust gas flow rate and other parameters according to the monitored temperature signal to keep the temperature in the oxidation box 1 within the set range. Although most of the organic pollutants in the carbon fiber production exhaust gas have been decomposed, it may still contain some acidic gases (such as sulfur dioxide, nitrogen oxides, etc.) and particulate matter. For acidic gases, alkaline solution absorption can be used for treatment. For particulate matter, it can be filtered and collected by cyclone separators, bag dust collectors and other equipment to ensure that the final exhaust gas emissions meet environmental protection standards.

[0046] In this embodiment, after the carbon fiber production waste gas enters the gas cylinder 2 through the air inlet pipe 20, the motor 13 is started, so that the motor 13 drives the conveying rod 14 to rotate, so that the spiral conveying plate 15 rotates to reduce the conveying speed of the carbon fiber production waste gas, so that the carbon fiber production waste gas flows slowly in the gas cylinder 2, so that the carbon fiber production waste gas enters the oxidation box 1 through the gas bucket 3, and the combustion-supporting gas enters the oxidation box 1 through the gas supply pipe 5 to heat the heating plate group 4, so that the heating plate group 4 heats and oxidizes the carbon fiber production waste gas in all directions. When the oxidized carbon fiber production waste gas enters the condensation box 6 through the air vent, the cooling water is continuously flowed in the condensation pipe group 10 to condense the carbon fiber production waste gas. The condensed water can flow into the collecting bucket 7 through the condensation plate body 11 for collection, and then the drain valve is opened to allow the condensed water to be discharged through the drain pipe 17 for treatment.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-temperature oxidation device for waste gas from carbon fiber production, characterized in that: include: Oxidation box (1); A gas delivery cylinder (2), the gas delivery cylinder (2) being connected to one side of the oxidation box (1); A gas delivery seat, the gas delivery seat being arranged on the gas delivery cylinder (2); A gas delivery hopper (3), the gas delivery hopper (3) being connected to one side of the gas delivery cylinder (2); A heating plate group (4), the heating plate group (4) is installed in the oxidation box (1), and the heating plate group (4) is located on one side of the gas delivery hopper (3); an air supply pipe (5), the air supply pipe (5) being connected to the oxidation box (1); A condensation box (6), the condensation box (6) is fixedly connected to the top of the oxidation box (1), and a vent is provided between the condensation box (6) and the oxidation box (1); A condensation component, the condensation component being arranged in the condensation box (6); A collecting hopper (7), the collecting hopper (7) is located at the lower side of the condensing component.

2. The high-temperature oxidation device for carbon fiber production waste gas according to claim 1, characterized in that: The condensation assembly comprises: A water inlet pipe (8), the water inlet pipe (8) is connected to one side of the condensation tank (6), and a water inlet valve is installed on the water inlet pipe (8); A water outlet pipe (9), the water outlet pipe (9) is connected to the other side of the condensation tank (6), and a water outlet valve is provided on the water outlet pipe (9); A condenser tube group (10), the condenser tube group (10) being connected between the water inlet pipe (8) and the water outlet pipe (9); A condensation plate body (11), wherein the condensation plate body (11) is fixedly connected to the inner wall of the condensation box (6), and the condensation plate body (11) is located between the condensation tube group (10) and the collection bucket (7).

3. The high-temperature oxidation device for carbon fiber production waste gas according to claim 2, characterized in that: The gas delivery seat comprises: A mounting seat (12), the mounting seat (12) being fixedly connected to one side of the gas cylinder (2); A motor (13), the motor (13) is mounted on the mounting seat (12), and the output end of the motor (13) is connected to the gas cylinder (2); A conveying rod (14), wherein the conveying rod (14) is fixedly connected to the output end of the motor (13); A spiral conveying piece (15), wherein the spiral conveying piece (15) is fixedly connected to the conveying rod (14).

4. The high-temperature oxidation device for carbon fiber production waste gas according to claim 3, characterized in that: A cleaning port is provided on one side of the oxidation box (1), and a sealing door (16) is detachably connected to the cleaning port.

5. The high-temperature oxidation device for carbon fiber production waste gas according to claim 4, characterized in that: One side of the collecting hopper (7) is connected to a drainage pipe (17), and a drainage valve is provided on the drainage pipe (17).

6. The high-temperature oxidation device for carbon fiber production waste gas according to claim 5, characterized in that: A plurality of mounting brackets (18) are fixedly connected to the sealing door (16), and mounting screws (19) are threadedly connected between the plurality of mounting brackets (18) and the oxidation box (1).

7. The high-temperature oxidation device for carbon fiber production waste gas according to claim 6, characterized in that: The top end of the gas delivery cylinder (2) is connected to an air intake pipe (20), and an air intake valve is provided on the air intake pipe (20).

Images