Combination device for carbonization reactor negative pressure explosion prevention and tar enrichment treatment

Abstract

The utility model discloses carbonization reactor negative pressure explosion -proof and tar enrichment treatment combined device, including condensing case and filter box, the filter box right -hand side is installed with negative pressure fan, and the air inlet end of negative pressure fan is connected with the inner bottom of filter box, the inner top space communication of filter box has the communicating tube, the inside of condensing case is provided with the serpentine temperature -conducting pipe of back and forth movement, the inner bottom fixedly connected with vertical pipe of condensing case, the lower end outside of vertical pipe communicates with the other end of communicating tube, the upper end of vertical pipe extends to the inside of condensing case, and communicates with the lower end of serpentine temperature -conducting pipe through second connecting hose, the upper end communication of serpentine temperature -conducting pipe has first connecting hose. The device is used in, at exhaust gas exit, carries out negative pressure adsorption, and carries out condensation treatment to combustible tar gas, then carries out adsorption purification to VOCs gas, avoids the pollution to the environment simultaneously, and eliminates the combustible gas explosion risk.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a combined device for negative pressure explosion-proof carbonization reactor and tar enrichment treatment. Background Technology

[0002] When in use, carbonization reactors generate a large amount of waste gas containing combustible tar gases and volatile organic compounds (VOCs). If these waste gases are discharged directly into the atmosphere without effective treatment, they will cause serious environmental pollution and endanger human health. In addition, some combustible tar gases may also pose an explosion risk under certain conditions, posing a great threat to production safety. Currently, the treatment technology for this type of waste gas has certain limitations. Existing treatment devices only focus on the adsorption and purification of VOCs in the waste gas, while ignoring the explosion hazard of combustible tar gases in specific environments. Therefore, how to solve this problem needs to be considered. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a combined device for negative pressure explosion prevention and tar enrichment treatment of carbonization reactors. When in use, the device performs negative pressure adsorption at the exhaust outlet and condenses the combustible tar gas. Subsequently, it adsorbs and purifies the VOCs gas, thus avoiding environmental pollution and eliminating the risk of combustible gas explosion.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A combined negative pressure explosion-proof and tar enrichment treatment device for a carbonization reactor includes a condenser and a filter. A negative pressure fan is installed on the right side of the filter, and the air inlet of the negative pressure fan is connected to the bottom of the filter. A connecting pipe is connected to the top of the filter. The condenser has a serpentine temperature-conducting pipe that can move back and forth inside. A vertical pipe is fixedly connected to the bottom of the condenser. The lower outer side of the vertical pipe is connected to the other end of the connecting pipe. The upper end of the vertical pipe extends into the condenser and is connected to the lower end of the serpentine temperature-conducting pipe through a second connecting hose. The upper end of the serpentine temperature-conducting pipe is connected to a first connecting hose. A cooling water inlet is connected to the bottom of the condenser, and a cooling water outlet is connected to the top of the condenser.

[0005] Preferably, a sealed door is installed on the front side of the filter box, and the interior of the filter box is provided with a multi-layer mesh frame, with activated carbon plates placed on each layer of the multi-layer mesh frame.

[0006] Preferably, it also includes a tar collection mechanism, which includes a temporary storage cylinder fixedly connected to the lower end of the vertical pipe. The temporary storage cylinder is connected to the vertical pipe, and the bottom of the temporary storage cylinder is connected to a tar discharge pipe.

[0007] Preferably, a solenoid valve is installed at the tar discharge pipe.

[0008] Preferably, the device further includes a shaking mechanism, which comprises two symmetrically fixedly connected U-shaped frames at the upper end of the condenser box. A shaking strip slides within both U-shaped frames. A strip-shaped opening is provided at the top inner part of the condenser box. The upper part of the serpentine temperature-conducting tube passes through the strip-shaped opening and through the shaking strip. The upper part of the serpentine temperature-conducting tube is fixedly connected to the shaking strip. The rear side of the shaking strip is elastically connected to the rear sidewall of the corresponding U-shaped frame through two springs.

[0009] Preferably, the upper ends of the two loop frames are fixedly connected to a mounting plate, a motor is mounted on the upper end of the mounting plate, the output shaft of the motor passes through the mounting plate and is fixedly connected to a cam, and the cam abuts against the front side of the vibration bar.

[0010] Compared with the prior art, the advantages of this utility model are as follows: 1. The condenser box is used to condense the tar in the exhaust gas, preventing the tar from spreading into the air, effectively reducing the risk of explosion caused by tar accumulation, providing a reliable guarantee for the safe operation of the carbonization reactor, and ensuring the safety of the production environment.

[0011] 2. The filter box is equipped with multi-layer mesh frames and activated carbon plates. The multi-layer structure increases the contact area between the exhaust gas and the activated carbon, which can fully absorb VOCs in the exhaust gas, effectively purify the exhaust gas, and reduce the emission of harmful gases.

[0012] 3. The tar collection mechanism is equipped with a temporary storage cylinder. When replacing the external collection box, the solenoid valve is closed to temporarily store the tar in the temporary storage cylinder. After the replacement is completed, the solenoid valve is opened to continue collection. The collection part can be replaced during continuous condensation operation to ensure overall continuity and improve collection efficiency.

[0013] 4. The condenser adopts a low-inlet, high-outlet cooling water injection method, which allows the cooling water to fill naturally and flow from bottom to top, forming a counter-current with the high-temperature gas flowing from top to bottom. According to the principle of heat transfer, the temperature difference between the hot and cold fluids is large during counter-current, resulting in higher heat exchange efficiency and effectively improving the heat exchange effect.

[0014] 5. The shaking mechanism causes the serpentine heat-conducting tube to shake, which on the one hand disrupts the laminar flow of cooling water and improves the heat exchange effect; on the other hand, it breaks the static boundary layer between the gas and the tube wall, making the heat exchange more complete; it can also promote the condensate droplets to slide down faster, reduce the residence time, and avoid affecting the heat exchange. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the combined device for negative pressure explosion-proof carbonization reactor and tar enrichment treatment proposed in this utility model. Figure 2 for Figure 1 A diagram showing the situation after the sealing door has been removed; Figure 3 This is a schematic diagram of the condenser box. Figure 4 for Figure 3 Cross-sectional view; Figure 5 This is a schematic diagram of the vibration mechanism.

[0016] In the diagram: 1 Condensation box, 2 Filter box, 3 Negative pressure fan, 4 Sealed door, 5 Connecting pipe, 6 First connecting hose, 7 Multi-layer mesh frame, 8 Cooling water inlet, 9 U-shaped frame, 10 Mounting plate, 11 Motor, 12 Temporary storage cylinder, 13 Tar discharge pipe, 14 Serpentine heat-conducting pipe, 15 Strip-shaped port, 16 Second connecting hose, 17 Vertical pipe, 18 Cooling water outlet, 19 Cam, 20 Vibration bar, 21 Spring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Reference Figures 1-5 The carbonization reactor negative pressure explosion-proof and tar enrichment treatment combined device includes a condenser box 1 and a filter box 2. The condenser box 1 can condense the tar in the exhaust gas to prevent it from spreading into the air and causing an explosion. The front of the filter box 2 is equipped with a sealing door 4. The inside of the filter box 2 is equipped with a multi-layer mesh frame 7. Each layer of the multi-layer mesh frame 7 is filled with activated carbon plates. The multi-layer arrangement can ensure the actual absorption effect of VOCs. The use of the sealing door 4 facilitates the subsequent replacement of the activated carbon plates. The filter box 2 is equipped with a negative pressure fan 3 on the right side. After the negative pressure fan 3 is started, it can generate a continuous airflow. The air inlet of the negative pressure fan 3 is connected to the bottom of the filter box 2. The top space of the filter box 2 is connected to a connecting pipe 5. The condenser box 1 is equipped with a serpentine heat-conducting pipe 14 that can move back and forth. The serpentine heat-conducting pipe 14 is used for heat exchange. It is made of heat-conducting material. With its own serpentine structure, it can effectively improve the actual heat exchange range. After the high-temperature exhaust gas enters, it can be cooled down by heat exchange at this place, so that the tar is cooled into liquid and collected. The bottom of the condenser box 1 is fixedly connected to a vertical pipe 17. The lower end of the vertical pipe 17 is connected to the other end of the connecting pipe 5. The upper end of the vertical pipe 17 extends into the condenser box 1 and is connected to the lower end of the serpentine heat-conducting pipe 14 through a second connecting hose 16. The upper end of the serpentine heat-conducting pipe 14 is connected to a first connecting hose 6. The other end of the first connecting hose 6 is connected to the exhaust end of the external carbonization reactor. The condenser 1 has a cooling water inlet 8 at its bottom and a cooling water outlet 18 at its top. The cooling water inlet 8 is connected to an external water supply pump, and the other end of the cooling water outlet 18 is connected to an external water collection tank. Low-temperature water is injected through the cooling water inlet 8 and discharged through the cooling water outlet 18. The cooling water injection method of low inlet and high outlet can naturally fill the entire condenser, ensuring that the condenser tube is always full of cooling water. The cooling water flows from bottom to top, forming a countercurrent with the high-temperature gas flowing from top to bottom. According to the principle of heat transfer, the temperature difference between the hot and cold fluids remains large during the countercurrent process, resulting in higher heat exchange efficiency.

[0019] The system also includes a tar collection mechanism, which consists of a temporary storage cylinder 12 fixedly connected to the lower end of a vertical pipe 17. The temporary storage cylinder 12 is connected to the vertical pipe 17, and a tar discharge pipe 13 is connected to the bottom of the temporary storage cylinder 12. A solenoid valve is installed at the tar discharge pipe 13. During the collection phase, the tar discharge pipe 13 is connected to an external collection box, and the solenoid valve is open. When the external collection box is full and the collection box needs to be replaced, the solenoid valve can be closed. At this time, the tar will be collected in the temporary storage cylinder 12. After the collection box is replaced, the solenoid valve can be opened again. Using this method, the collection part can be replaced while the condenser is running continuously, ensuring overall continuity.

[0020] The system also includes a shaking mechanism, which consists of two symmetrically fixedly connected U-shaped frames 9 at the top of the condenser box 1. A shaking strip 20 slides within the two U-shaped frames 9. A strip-shaped opening 15 is provided at the top of the condenser box 1. The upper part of the serpentine temperature-conducting tube 14 passes through the strip-shaped opening 15 and through the shaking strip 20. The upper part of the serpentine temperature-conducting tube 14 is fixedly connected to the shaking strip 20. The rear side of the shaking strip 20 is elastically connected to the rear side wall of the corresponding U-shaped frame 9 by two springs 21. A mounting plate 10 is fixedly connected to the upper end of the two U-shaped frames 9. A motor 11 is mounted on the upper end of the mounting plate 10. The output shaft of the motor 11 passes through the mounting plate 10 and is fixedly connected to a cam 19. The cam 19 abuts against the front side of the shaking strip 20. After the motor 11 is started, the cam 19 can be rotated. Under the elastic action of the spring 21, the shaking strip 20 is always opposite to the cam 19. Therefore, the rotation of the cam 19 can drive the shaking strip 20 to shake back and forth. This shaking can disrupt the laminar flow in the cooling water and improve the heat exchange effect. On the other hand, shaking the condenser tube can disrupt the static boundary layer between the gas and the tube wall, making the heat exchange more complete. In addition, the vibration generated by the shaking can make the condensed droplets slide down the tube wall faster, reduce the residence time in the tube, and avoid the situation of sticking to the pipe and affecting the heat exchange.

[0021] In this utility model, when the negative pressure fan 3 is started, the exhaust gas generated by the external carbonization reactor enters the serpentine heat-conducting pipe 14 in the condenser box 1 through the first connecting hose 6. Low-temperature water is injected into the condenser box 1 from the cooling water inlet 8. The low-temperature water flows from bottom to top and forms a countercurrent with the high-temperature exhaust gas flowing from top to bottom in the serpentine heat-conducting pipe 14. The high-temperature exhaust gas exchanges heat with the cooling water in the serpentine heat-conducting pipe 14 and cools down. The tar in the exhaust gas is cooled into a liquid. The cooled tar liquid enters the temporary storage cylinder 12 through the vertical pipe 17 with the airflow, and finally enters the external collection box through the tar discharge pipe 13. After being cooled by the condenser box 1, the exhaust gas enters the bottom of the filter box 2 through the connecting pipe 5. The filter box 2 is equipped with multiple layers of mesh frame 7, and each layer of mesh frame 7 is equipped with activated carbon plates. The exhaust gas passes through multiple layers of activated carbon plates, and the activated carbon plates absorb the VOCs in the exhaust gas, thus treating the gas. During the above process, the motor 11 on the mounting plate 10 can also be started, and the output shaft of the motor 11 drives the cam 19 to rotate. Since the rear side of the vibrating strip 20 is elastically connected to the rear wall of the U-shaped frame 9 through the spring 21, and the front side of the vibrating strip 20 abuts against the cam 19, under the elastic action of the spring 21, the rotation of the cam 19 drives the vibrating strip 20 to vibrate back and forth. The upper part of the serpentine heat-conducting tube 14 passes through the strip-shaped opening 15 and is fixedly connected to the vibrating strip 20, so the vibration of the vibrating strip 20 drives the serpentine heat-conducting tube 14 to vibrate. This vibration, on the one hand, disrupts the laminar flow in the cooling water and improves the heat exchange effect; on the other hand, it disrupts the static boundary layer between the gas and the tube wall, making the heat exchange more complete; in addition, it promotes the condensed droplets to slide down the tube wall faster, reducing the residence time in the tube and avoiding adhesion to the tube and affecting heat exchange; the water after heat exchange is discharged from the condenser 1 through the cooling water outlet 18.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A combined device for negative pressure explosion-proof carbonization reactor and tar enrichment treatment, characterized in that, include: A condenser box (1) and a filter box (2) are provided. A negative pressure fan (3) is installed on the right side of the filter box (2). The air inlet of the negative pressure fan (3) is connected to the bottom of the filter box (2). A connecting pipe (5) is connected to the top space of the filter box (2). A serpentine temperature-conducting pipe (14) that can move back and forth is provided inside the condenser box (1). A vertical pipe (17) is fixedly connected to the bottom of the condenser box (1). The lower outer side of the vertical pipe (17) is connected to the other end of the connecting pipe (5). The upper end of the vertical pipe (17) extends into the condenser box (1) and is connected to the lower end of the serpentine temperature-conducting pipe (14) through a second connecting hose (16). The upper end of the serpentine temperature-conducting pipe (14) is connected to a first connecting hose (6). The bottom of the condenser (1) is connected to a cooling water inlet (8), and the top of the condenser (1) is connected to a cooling water outlet (18).

2. The combined device for negative pressure explosion-proof carbonization reactor and tar enrichment treatment according to claim 1, characterized in that, The filter box (2) is equipped with a sealed door (4) on the front side. The filter box (2) is equipped with a multi-layer mesh frame (7) inside, and each layer of the multi-layer mesh frame (7) is filled with an activated carbon plate.

3. The combined device for negative pressure explosion-proof carbonization reactor and tar enrichment treatment according to claim 1, characterized in that, It also includes a tar collection mechanism, which includes a temporary storage cylinder (12) fixedly connected to the lower end of the vertical pipe (17). The temporary storage cylinder (12) is connected to the vertical pipe (17), and the bottom of the temporary storage cylinder (12) is connected to a tar discharge pipe (13).

4. The combined device for negative pressure explosion-proof carbonization reactor and tar enrichment treatment according to claim 3, characterized in that, A solenoid valve is installed at the tar discharge pipe (13).

5. The combined device for negative pressure explosion-proof carbonization reactor and tar enrichment treatment according to claim 1, characterized in that, It also includes a shaking mechanism, which includes two symmetrically fixedly connected ring frames (9) at the top of the condenser (1). A shaking strip (20) slides together in the two ring frames (9). A strip-shaped opening (15) is opened at the top of the condenser (1). The upper part of the serpentine heat-conducting tube (14) passes through the strip-shaped opening (15) and through the shaking strip (20). The upper part of the serpentine heat-conducting tube (14) is fixedly connected to the shaking strip (20). The rear side of the shaking strip (20) is elastically connected to the rear side wall of the corresponding ring frame (9) through two springs (21).

6. The combined device for negative pressure explosion-proof carbonization reactor and tar enrichment treatment according to claim 5, characterized in that, The upper ends of the two loop frames (9) are fixedly connected to a mounting plate (10). A motor (11) is installed on the upper end of the mounting plate (10). The output shaft of the motor (11) passes through the mounting plate (10) and is fixedly connected to a cam (19). The cam (19) abuts against the front side of the shaking bar (20).

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