Waste gas treatment device for adhesive reaction kettle

Abstract

The utility model relates to an adhesive reaction kettle waste gas treatment device, and relates to the technical field of adhesive processing, the adhesive reaction kettle waste gas treatment device comprises a reaction kettle, a cooling box and an absorption tank, a kettle body of the reaction kettle is communicated with a waste gas pipeline, a cooling coil pipe and a refrigeration module are fixedly installed in the cooling box, and the gas inlet end of the cooling coil pipe is communicated with the gas outlet end of the waste gas pipeline; the air outlet end of the cooling coil is communicated with a connecting pipeline; absorption liquid is contained in the absorption tank, a sealing cover is detachably installed at a tank opening of the absorption tank, an air inlet pipeline and an exhaust pipeline are fixedly connected to the sealing cover, the air inlet end of the air inlet pipeline is detachably connected with the air outlet end of the connecting pipeline, and the air outlet end of the air inlet pipeline penetrates through the sealing cover and extends to the position below the absorption liquid; the air inlet end of the exhaust pipeline is located above the absorption liquid, an acid-base sensor is fixedly installed on the sealing cover, and the sensing end of the acid-base sensor extends below the absorption liquid. According to the invention, the purification effect of waste gas generated in the reaction process of the adhesive in the reaction kettle can be improved.

Description

Technical Field

[0001] This application relates to the field of adhesive processing technology, and in particular to an adhesive reaction vessel exhaust gas treatment device. Background Technology

[0002] In the production process of adhesives, solid and liquid raw materials are typically added to a reaction vessel, stirred evenly, and then reacted. The reaction process requires heating and melting the raw materials, which generates toxic gases. Therefore, waste gas treatment equipment is needed to purify the waste gases.

[0003] In existing technologies, waste gas treatment devices for adhesive production reactors mainly use a single-layer coarse filtration system with an activated carbon filter layer for waste gas. Specifically, a waste gas pipe is installed on the reactor body or lid, and an air pump is mounted on the pipe. The outlet of the pipe is connected to a waste gas treatment box, which contains an activated carbon adsorption layer. During the reaction process in the reactor, the air pump draws the waste gas from the reactor into the treatment box for purification. However, the purification effect of activated carbon is relatively poor, and VOCs still remain in the filtered gas, thus polluting the atmosphere. Utility Model Content

[0004] In order to improve the purification effect of the waste gas generated during the reaction of adhesives in the reactor, this application provides a waste gas treatment device for adhesive reactors.

[0005] The technical solution of the adhesive reaction vessel exhaust gas treatment device provided in this application is as follows:

[0006] An adhesive reaction vessel exhaust gas treatment device includes a reaction vessel, a cooling box, and an absorption tank. An exhaust gas pipe is connected to the body of the reaction vessel. A cooling coil and a refrigeration module are fixedly installed inside the cooling box. The air inlet of the cooling coil is connected to the air outlet of the exhaust gas pipe, and a connecting pipe is connected to the air outlet of the cooling coil.

[0007] The absorption tank contains an absorption liquid. A detachable cap is installed at the opening of the absorption tank. An air inlet pipe and an air outlet pipe are fixedly connected to the cap. The air inlet end of the air inlet pipe and the air outlet end of the connecting pipe are detachably connected. The air outlet end of the air inlet pipe passes through the cap and extends below the surface of the absorption liquid. The air inlet end of the air outlet pipe is located above the surface of the absorption liquid. An acid-base sensor is fixedly installed on the cap, and the sensing end of the acid-base sensor extends below the surface of the absorption liquid.

[0008] The bottom of the absorption tank is connected to a waste liquid discharge pipe, and a first butterfly valve is installed on the waste liquid discharge pipe.

[0009] By adopting the above technical solution, when the adhesive reacts in the reactor, the waste gas generated is sent out through the waste gas pipe and flows through the cooling coil. Because a refrigeration module is installed in the cooling tank, the temperature of the waste gas decreases as it flows through the cooling coil. After cooling, the waste gas flows through the connecting pipe to the inlet pipe, and is then guided into the absorbent liquid in the absorption tank. The absorbent liquid absorbs the VOCs in the waste gas, and the purified waste gas is discharged from the absorbent liquid and then released into the atmosphere through the exhaust pipe. The absorbent liquid can absorb and purify the waste gas, achieving a better purification effect compared to activated carbon adsorption. The cooling tank cools the waste gas before it enters the absorption tank, preventing the absorbent liquid from heating up and evaporating due to high-temperature waste gas entering the absorbent liquid. The presence of an acid / alkali sensor allows for real-time monitoring of the pH value of the absorbent liquid in the absorption tank, facilitating operators to determine whether the absorbent liquid needs to be replaced. Because the bottom of the absorption tank is connected to a waste liquid discharge pipe, when the pH value of the absorbent liquid in the absorption tank reaches the set value, the operator can open the waste liquid discharge pipe through the first butterfly valve on the waste liquid discharge pipe to release the absorbent liquid in the absorption tank, so that the operator can replace the absorbent liquid in the absorption tank.

[0010] Preferably, the refrigeration module includes a refrigeration semiconductor fixedly installed on the top of the cooling box, the cold end of the refrigeration semiconductor being located above the cooling coil, and a plurality of cooling rods being fixedly installed on the surface of the cold end of the refrigeration semiconductor, the plurality of cooling rods being arranged in a linear array on the surface of the cold end, and the plurality of cooling rods being located in the middle of the cooling coil.

[0011] By employing the above technical solution, the cooling capacity generated by the refrigeration semiconductor can lower the temperature inside the cooling chamber, thereby cooling the exhaust gas flowing through the cooling coil. Because the cold-conducting rod at the cold end has excellent heat transfer properties, it can quickly transfer the cooling capacity generated by the cold end of the refrigeration semiconductor to the lower part of the cooling coil, improving the cooling effect on the exhaust gas.

[0012] Preferably, a fan is fixedly connected to the bottom of the cooling box, and the fan is located directly below the cooling semiconductor.

[0013] By adopting the above technical solution, the fan below the cooling semiconductor can make the air inside the cooling box flow, so that the cooling energy can be quickly and evenly distributed inside the cooling box, which can further improve the cooling effect of the exhaust gas.

[0014] Preferably, the air intake end of the air intake pipe is fixedly connected to a threaded connection end, the threaded connection end is provided with an internal thread, the air outlet end of the connecting pipe is provided with an installation end, the installation end is provided with an external thread, and the installation end and the threaded connection end are detachably connected.

[0015] By adopting the above technical solution, the threaded connection end on the air inlet pipe and the installation end set at the air outlet end of the connecting pipe can achieve the technical effect of detachable connection between the connecting pipe and the air inlet pipe, which makes it convenient for operators to remove the cap to replace or replenish the absorbent liquid.

[0016] Preferably, a second butterfly valve is fixedly connected to the exhaust pipe.

[0017] By adopting the above technical solution and setting the second butterfly valve, the exhaust pipe can be closed when the operator is not using the reactor, thereby reducing the occurrence of the absorbent liquid in the absorption tank evaporating through the exhaust pipe.

[0018] Preferably, an extension ring is fixedly connected to the bottom of the cap, and the extension ring is inserted into the mouth of the absorption tank.

[0019] A sealing ring groove is provided on the outer side wall of the extended protrusion ring, and a sealing ring is fitted inside the sealing ring groove, with the sealing ring pressing against the inner side wall of the absorption tank.

[0020] By adopting the above technical solution and setting a sealing ring, the sealing performance between the cap and the tank body of the absorption tank can be improved, which can further reduce the occurrence of evaporation of the absorbent liquid in the absorption tank.

[0021] In summary, the adhesive reaction vessel exhaust gas treatment device of this application has at least the following beneficial technical effects:

[0022] 1. The absorbent liquid can absorb and purify the waste gas, and the purification effect is better than that of activated carbon adsorption. The cooling box can cool the waste gas before it enters the absorption tank, preventing the absorbent liquid from heating up and evaporating due to the high temperature of the waste gas entering the absorbent liquid.

[0023] 2. By setting up an acid-base sensor, the pH value of the absorbent in the absorption tank can be monitored in real time, making it easier for operators to determine whether the absorbent in the absorption tank needs to be replaced;

[0024] 3. Since a waste liquid discharge pipe is connected to the bottom of the absorption tank, when the pH value of the absorbent liquid in the absorption tank reaches the set value, the operator can open the waste liquid discharge pipe through the first butterfly valve on the waste liquid discharge pipe to release the absorbent liquid in the absorption tank, so that the operator can replace the absorbent liquid in the absorption tank. Attached Figure Description

[0025] Figure 1 This is a schematic diagram illustrating the overall structure of the waste gas treatment device in an embodiment of this application.

[0026] Figure 2 This is a schematic diagram illustrating the overall structure of the cooling box in an embodiment of this application.

[0027] Figure 3 This is a schematic diagram illustrating the overall structure of the absorption tank in an embodiment of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Reactor; 11. Exhaust gas pipe; 2. Cooling box; 21. Cooling coil; 22. Refrigeration semiconductor; 23. Cooling rod; 24. Fan; 25. Connecting pipe; 3. Absorption tank; 31. Cover; 32. Inlet pipe; 33. Exhaust pipe; 34. Acid-base sensor; 35. Waste liquid discharge pipe; 36. First butterfly valve; 37. Second butterfly valve; 38. Extension convex ring; 39. Sealing ring. Detailed Implementation

[0029] The following combination Figures 1-3 This application will be described in further detail.

[0030] Example

[0031] This application discloses an exhaust gas treatment device for an adhesive reaction vessel. (Refer to...) Figures 1-3 It mainly includes a reaction vessel 1, a cooling box 2 and an absorption tank 3. The reaction vessel 1 is connected to an exhaust gas pipe 11. The cooling box 2 is fixedly installed with a cooling coil 21 and a refrigeration module. The air inlet of the cooling coil 21 is connected to the air outlet of the exhaust gas pipe 11. The air outlet of the cooling coil 21 is connected to a connecting pipe 25.

[0032] The absorption tank 3 contains an absorption liquid. A cap 31 is detachably installed at the opening of the absorption tank 3. An air inlet pipe 32 and an exhaust pipe 33 are fixedly connected to the cap 31. The air inlet end of the air inlet pipe 32 is detachably connected to the air outlet end of the connecting pipe 25. The air outlet end of the air inlet pipe 32 passes through the cap 31 and extends below the surface of the absorption liquid. The air inlet end of the exhaust pipe 33 is located above the surface of the absorption liquid. An acid-base sensor 34 is fixedly installed on the cap 31. The sensing end of the acid-base sensor 34 extends below the surface of the absorption liquid.

[0033] The bottom of the absorption tank 3 is connected to a waste liquid discharge pipe 35, and a first butterfly valve 36 is installed on the waste liquid discharge pipe 35.

[0034] When the adhesive reacts in the reactor 1, the waste gas generated is sent out through the waste gas pipe 11 and flows through the cooling coil 21. Since the cooling box 2 is equipped with a refrigeration module, the temperature of the waste gas is reduced during the flow of the cooling coil 21. After being cooled, the waste gas flows through the connecting pipe 25 to the inlet pipe 32 and is guided by the inlet pipe 32 into the absorbent liquid in the absorption tank 3. The absorbent liquid absorbs the VOCs in the waste gas. After being purified, the waste gas is discharged from the absorbent liquid and then discharged into the atmosphere through the exhaust pipe 33.

[0035] It should be noted that in this embodiment, the function of the cooling box is to cool the exhaust gas. The exhaust gas remains in a gaseous state after passing through the cooling coil. In actual use, the power of the cooling semiconductor can be adjusted according to the liquefaction temperature of the exhaust gas to cool the exhaust gas while ensuring that the exhaust gas flows out of the cooling box in a gaseous state.

[0036] The waste gas can be absorbed and purified by the absorbent liquid, which has a better purification effect than the activated carbon adsorption method. The cooling box 2 can cool the waste gas before it enters the absorption tank 3, preventing the absorbent liquid from heating up and evaporating due to the high temperature of the waste gas entering the absorbent liquid.

[0037] By setting the acid-base sensor 34, the pH value of the absorbent liquid in the absorption tank 3 can be monitored in real time. Since the pH value of the absorbent liquid will change after absorbing the waste gas, the acid-base reading on the acid-base sensor can be used to judge the amount of VOCs absorbed by the absorbent liquid in the waste gas, which makes it easier for operators to judge whether the absorbent liquid in the absorption tank 3 needs to be replaced.

[0038] Since the bottom of the absorption tank 3 is connected to a waste liquid discharge pipe 35, when the pH value of the absorbent liquid in the absorption tank 3 reaches the set value, the operator can open the waste liquid discharge pipe 35 through the first butterfly valve 36 on the waste liquid discharge pipe 35 to release the absorbent liquid in the absorption tank 3, so that the operator can replace the absorbent liquid in the absorption tank 3.

[0039] Reference Figure 2 The refrigeration module includes a refrigeration semiconductor 22 fixedly installed on the top of the cooling box 2. The cold end of the refrigeration semiconductor 22 is located above the cooling coil 21. Several cooling rods 23 are fixedly installed on the surface of the cold end of the refrigeration semiconductor 22. The cooling rods 23 are arranged in a linear array on the surface of the cold end, and the cooling rods 23 are all located in the middle of the cooling coil 21.

[0040] The cooling semiconductor 22 generates cooling energy, which lowers the temperature inside the cooling box 2 and cools the exhaust gas flowing through the cooling coil 21. Because the cold-conducting rod 23 at the cold end has excellent cooling transfer effect, it can quickly transfer the cooling energy generated at the cold end of the cooling semiconductor 22 to the lower part of the cooling coil 21, improving the cooling effect on the exhaust gas.

[0041] Reference Figure 2 A fan 24 is fixedly connected to the bottom of the cooling box 2, and the fan 24 is located directly below the cooling semiconductor 22. The fan 24 below the cooling semiconductor 22 enables airflow inside the cooling box 2, allowing the cooling energy to be quickly and evenly distributed inside the cooling box 2, which can further improve the cooling effect on the exhaust gas.

[0042] In this embodiment, the air intake end of the air intake pipe 32 is fixedly connected to a threaded connection end, and the threaded connection end is provided with an internal thread. The air outlet end of the connecting pipe 25 is provided with an installation end, and the installation end is provided with an external thread. The installation end and the threaded connection end are detachably connected.

[0043] By connecting the threaded end on the air inlet pipe 32 to the mounting end at the air outlet of the connecting pipe 25, a detachable connection between the connecting pipe 25 and the air inlet pipe 32 can be achieved, making it convenient for operators to remove the cap 31 to replace or replenish the absorbent.

[0044] Reference Figure 3 A second butterfly valve 37 is fixedly connected to the exhaust pipe 33. By setting the second butterfly valve 37, the exhaust pipe 33 can be closed when the operator is not using the reactor 1, thereby reducing the occurrence of the absorbent liquid in the absorption tank 3 evaporating through the exhaust pipe 33.

[0045] Reference Figure 3 An extension ring 38 is fixedly connected to the bottom of the cap 31. The extension ring 38 is inserted into the mouth of the absorption tank 3. A sealing ring 39 groove is provided on the outer side wall of the extension ring 38. A sealing ring 39 is fitted in the sealing ring 39 groove and abuts against the inner side wall of the absorption tank 3.

[0046] By setting the sealing ring 39, the sealing performance between the cap 31 and the tank body of the absorption tank 3 can be improved, which can further reduce the occurrence of evaporation of the absorbent liquid in the absorption tank 3.

[0047] The implementation principle of the adhesive reaction vessel exhaust gas treatment device in this application embodiment is as follows: The exhaust gas can be absorbed and purified using an absorbent liquid, resulting in better purification compared to activated carbon adsorption. The cooling tank 2 cools the exhaust gas before it enters the absorption tank 3, preventing the absorbent liquid from heating up and evaporating due to high-temperature exhaust gas entering the absorbent liquid. The pH value of the absorbent liquid in the absorption tank 3 can be monitored in real time using an acid-base sensor 34, allowing operators to determine whether the absorbent liquid needs to be replaced. Since a waste liquid discharge pipe 35 is connected to the bottom of the absorption tank 3, when the pH value of the absorbent liquid in the absorption tank 3 reaches a set value, the operator can open the waste liquid discharge pipe 35 through the first butterfly valve 36 to release the absorbent liquid in the absorption tank 3, facilitating replacement of the absorbent liquid in the absorption tank 3.

[0048] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An adhesive reaction vessel exhaust treatment device, comprising: The reactor includes a reaction vessel (1), a cooling box (2), and an absorption tank (3). The reactor (1) is connected to a waste gas pipe (11). The cooling box (2) is fixedly installed with a cooling coil (21) and a refrigeration module. The inlet of the cooling coil (21) is connected to the outlet of the waste gas pipe (11). The outlet of the cooling coil (21) is connected to a connecting pipe (25). The absorption tank (3) contains an absorption liquid. A cap (31) is detachably installed at the opening of the absorption tank (3). An air inlet pipe (32) and an exhaust pipe (33) are fixedly connected to the cap (31). The air inlet end of the air inlet pipe (32) is detachably connected to the air outlet end of the connecting pipe (25). The air outlet end of the air inlet pipe (32) passes through the cap (31) and extends below the surface of the absorption liquid. The air inlet end of the exhaust pipe (33) is located above the surface of the absorption liquid. An acid-base sensor (34) is fixedly installed on the cap (31). The sensing end of the acid-base sensor (34) extends below the surface of the absorption liquid. The bottom of the absorption tank (3) is connected to a waste liquid discharge pipe, and a first butterfly valve (36) is installed on the waste liquid discharge pipe (35).

2. The adhesive reaction vessel exhaust treatment device of claim 1, wherein, The refrigeration module includes a refrigeration semiconductor (22) fixedly installed on the top of the cooling box (2). The cold end of the refrigeration semiconductor (22) is located above the cooling coil (21). A plurality of cooling rods (23) are fixedly installed on the surface of the cold end of the refrigeration semiconductor (22). The plurality of cooling rods (23) are arranged in a linear array on the surface of the cold end, and the plurality of cooling rods (23) are all located in the middle of the cooling coil (21).

3. The adhesive reaction vessel exhaust treatment device of claim 2, wherein, A fan (24) is fixedly connected to the bottom of the cooling box (2), and the fan (24) is located directly below the cooling semiconductor (22).

4. The adhesive reaction vessel exhaust treatment device of claim 3, wherein, The air intake end of the air intake pipe (32) is fixedly connected to a threaded connection end, and the threaded connection end is provided with an internal thread. The air outlet end of the connecting pipe (25) is provided with an installation end, and the installation end is provided with an external thread. The installation end and the threaded connection end are detachably connected.

5. The adhesive reaction vessel exhaust treatment device of claim 4, wherein, A second butterfly valve (37) is fixedly connected to the exhaust pipe (33).

6. The adhesive reaction vessel exhaust treatment device of claim 5, wherein, An extension ring (38) is fixedly connected to the bottom of the cap (31), and the extension ring (38) is inserted into the mouth of the absorption tank (3). A sealing ring (39) groove is provided on the outer side wall of the extended protrusion (38), and a sealing ring (39) is fitted inside the sealing ring (39) groove. The sealing ring (39) abuts against the inner side wall of the absorption tank (3).

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