Unsaturated polyester resin waste gas treatment system

Abstract

The utility model discloses an unsaturated polyester resin waste gas treatment system which comprises a waste gas treatment tower and a circulating liquid storage tank, an adsorption assembly is installed in the waste gas treatment tower and comprises a frame, a first partition plate is arranged in the frame, and a second partition plate is arranged in the first partition plate. The first partition plate and the second partition plate are each of a polygonal stand column structure and are consistent in edge number, baffles are connected to the outer corner edge of the second partition plate and the inner corner edge of the first partition plate as well as the outer corner edge of the first partition plate and the inner wall of the frame, and a plurality of filling grooves are defined by the frame, the first partition plate, the second partition plate and the baffles. The filling groove is filled with a mixed filler layer, a delivery pump is mounted at the top of the circulating liquid storage tank, a delivery pipe is connected to the delivery pump, one end of the delivery pipe penetrates through the top of the side wall of the waste gas treatment tower and extends into the waste gas treatment tower, a spray header is mounted at the end, located in the waste gas treatment tower, of the delivery pipe, and a nozzle of the spray header is arranged right opposite to the adsorption assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical waste gas treatment technical field especially relates to a kind of unsaturated polyester resin waste gas treatment system. BACKGROUND

[0002] Unsaturated polyester resin is generally linear polymer compound containing unsaturated diacid or dihydric alcohol that is formed by diacid and dihydric alcohol polycondensation, viscous liquid formed by dissolving in monomer (usually using styrene), because its process performance is excellent, can be cured at room temperature, molding under normal pressure, process performance is flexible, especially suitable for large and on-site manufacturing glass steel products, and the comprehensive performance of resin after curing is good, widely applicable, and the price is relatively low, so as commonly used industrial raw materials. Unsaturated polyester resin production and transportation process will produce a large amount of organic waste gas, waste gas pollutants are mainly dust (phthalic anhydride and maleic anhydride), dihydric alcohol and styrene generated in each section, because of the industry characteristics pollutants styrene has peculiar smell, if not treated or unqualified, it is easy to cause workshop personnel physical discomfort, reduce regional environmental quality. At present, the most common adsorption material in industrial waste gas treatment is activated carbon, activated carbon has abundant pore, large adsorption capacity for organic matter, but activated carbon also has significant shortcomings, not resistant to high temperature, fire hazard exists;Mechanical strength is poor, pore is easy to lose, regeneration process quality loss is big;Poor water resistance, moisture in waste gas is easy to be adsorbed into pore by activated carbon, reduce adsorption effect. SUMMARY

[0003] Therefore, the utility model provides a kind of unsaturated polyester resin waste gas treatment system to solve the above problems.

[0004] The technical scheme adopted by the utility model to solve its technical problems is:

[0005] The application discloses an unsaturated polyester resin waste gas treatment system, which comprises a waste gas treatment tower and a circulating liquid storage tank arranged on one side of the waste gas treatment tower, wherein an adsorption assembly is arranged in the waste gas treatment tower, the adsorption assembly comprises a frame arranged on the inner wall of the waste gas treatment tower, a first partition plate is arranged in the frame, a second partition plate is arranged in the first partition plate, the first partition plate and the second partition plate are both polygonal column structures, the number of edges of the first partition plate is consistent with that of the second partition plate, the outer edge of the second partition plate is connected with the inner edge of the first partition plate and the outer edge of the first partition plate is connected with the inner wall of the frame, the frame, the first partition plate, the second partition plate and a plurality of baffle plates are combined to form a plurality of filling grooves, the filling grooves are filled with a mixed filler layer, a delivery pump is arranged on the top of the circulating liquid storage tank, a delivery pipe is connected to the delivery pump, one end of the delivery pipe extends to the inside of the waste gas treatment tower through the top of the side wall of the waste gas treatment tower, a spray head is arranged on the end of the delivery pipe in the waste gas treatment tower, and the nozzle of the spray head is arranged opposite to the adsorption assembly.

[0006] Further, an air inlet is arranged on the side wall of the waste gas treatment tower, an air outlet is arranged on the top wall of the waste gas treatment tower, a connecting pipe is connected to the air outlet, and a liquid outlet is arranged on the bottom of the side wall opposite to the side wall where the air inlet is arranged.

[0007] Further, a gas distribution plate is arranged in the waste gas treatment tower, the gas distribution plate is arranged above the air inlet, and the adsorption assembly is arranged on the gas distribution plate.

[0008] Further, the gas distribution plate comprises a frame arranged on the inner wall of the waste gas treatment tower and a plurality of plate bodies uniformly arranged in the frame, the frame and the plate bodies are fixedly connected or integrally formed, the plate bodies are arranged in parallel to each other and the spacing between every two plate bodies is equal, and a distribution groove is formed between every two plate bodies and between the plate bodies and the frame.

[0009] Further, a wire mesh demister is arranged at the top end of the waste gas treatment tower, the wire mesh demister is arranged directly below the air outlet, and the spray head is arranged between the adsorption assembly and the wire mesh demister.

[0010] Further, a backflow pipe is further connected to the bottom of the side wall of the circulating liquid storage tank, and one end of the backflow pipe is connected to the liquid outlet.

[0011] Further, the unsaturated polyester resin waste gas treatment system further comprises a waste gas storage tank and a combustion furnace, a gas conveying pipe is connected to the bottom of the side wall of the waste gas storage tank, one end of the gas conveying pipe is connected to the gas inlet, and one end of the connecting pipe is connected to the combustion furnace.

[0012] Further, the top of the side wall of the waste gas storage tank is connected with a gas inlet pipe, and the gas inlet end of the gas inlet pipe is connected with a gas collecting hood.

[0013] Further, an air inducing fan is installed on the gas conveying pipe.

[0014] The unsaturated polyester resin waste gas treatment system has the advantages that:

[0015] The unsaturated polyester resin waste gas treatment system comprises a waste gas treatment tower for treating waste gas, a circulating liquid storage tank connected to the waste gas treatment tower on one side of the waste gas treatment tower and used for circulating and conveying absorption liquid into the waste gas treatment tower, an adsorption assembly installed in the waste gas treatment tower and used for adsorbing and treating waste gas, a frame installed on the inner wall of the waste gas treatment tower, a first partition plate arranged in the frame, a second partition plate arranged in the first partition plate, the first partition plate and the second partition plate being polygonal column structures and having the same number of edges, baffle plates connected to the outer corner edges of the second partition plate, the inner corner edges of the first partition plate and the outer corner edges of the first partition plate and the inner wall of the frame, a plurality of filling grooves formed by the frame, the first partition plate, the second partition plate and the plurality of baffle plates, a mixed filler layer filled in each filling groove, a conveying pump installed on the top of the circulating liquid storage tank and used for conveying circulating absorption liquid into the waste gas treatment tower, a conveying pipe connected to the conveying pump, one end of the conveying pipe extending through the top of the side wall of the waste gas treatment tower and extending to the inside of the waste gas treatment tower, a spray head installed on one end of the conveying pipe inside the waste gas treatment tower and used for spraying circulating absorption liquid, a nozzle of the spray head facing the adsorption assembly, the circulating absorption liquid in the circulating liquid storage tank being extracted by the conveying pump, conveyed to the spray head through the conveying pipe and sprayed onto the adsorption assembly, waste gas flowing upwards into the adsorption assembly and fully contacting the mixed filler layer to be adsorbed and treated, the circulating absorption liquid being extracted by the conveying pump from the circulating liquid storage tank, conveyed to the spray head through the conveying pipe and sprayed onto the adsorption assembly, the organic matters in the waste gas being dissolved after the circulating absorption liquid contacts the waste gas, the recovery rate of the organic matters in the waste gas being effectively improved, the heat generated when the mixed filler layer is adsorbed being absorbed after the circulating absorption liquid is sprayed on the mixed filler layer, the activated carbon being prevented from being inactivated due to overheating of the mixed filler layer, the service life of the mixed filler layer being prolonged and the waste gas treatment efficiency being improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described in connection with the drawings and examples.

[0017] Figure 1 The utility model discloses an unsaturated polyester resin waste gas treatment system's structure schematic view;

[0018] Figure 2 For Figure 1 The section view of waste gas treatment tower (omitting connecting pipe) with part of conveying pipe and shower head in the unsaturated polyester resin waste gas treatment system of the utility model shown in the figure;

[0019] Figure 3 For Figure 2 The overhead view of gas distribution plate in the waste gas treatment tower shown in the figure;

[0020] Figure 4 For Figure 2 The overhead view of waste gas adsorption subassembly in the waste gas treatment tower shown in the figure.

[0021] In the figure: 100, unsaturated polyester resin waste gas treatment system, 1, waste gas storage tank, 11, inlet pipe, 12, gas conveying pipe, 13, induced draft fan, 2, waste gas treatment tower, 21, gas inlet, 22, gas outlet, 221, connecting pipe, 23, liquid outlet, 24, gas distribution plate, 241, frame, 242, plate body, 243, distribution groove, 25, adsorption subassembly, 251, frame, 252, first baffle, 253, second baffle, 254, baffle, 255, mixed filler layer, 26, wire mesh demister, 3, circulating liquid storage tank, 31, conveying pump, 32, conveying pipe, 321, shower head, 33, return pipe, 4, combustion furnace. DETAILED DESCRIPTION

[0022] The utility model will be explained in detail now in conjunction with the drawing. This drawing is the simplified schematic view, and only with the schematic way the basic structure of the utility model is shown, so it only shows the structure related with the utility model.

[0023] As Figure 1The utility model provides a kind of unsaturated polyester resin waste gas treatment system 100, for processing unsaturated polyester resin production and the organic waste gas generated in the process of transportation, the unsaturated polyester resin waste gas treatment system 100 of the utility model includes waste gas storage tank 1 for storing waste gas, waste gas treatment tower 2 for being connected with waste gas storage tank 1 for treating waste gas, circulation liquid storage tank 3 for being connected with waste gas treatment tower 2 for circulating and conveying absorption liquid to waste gas treatment tower 2 inside for being arranged in one side of waste gas treatment tower 2, and combustion furnace 4 for being connected with waste gas treatment tower 2 for fully burning waste gas treatment tower 2 exhaust gas.The organic waste gas generated in the process of unsaturated polyester resin production and transportation is stored after being collected by gas collecting hood and transported to waste gas storage tank 1, when the waste gas in waste gas storage tank 1 reaches certain amount, then by pipeline is transported to waste gas treatment tower 2, and dust and organic matter in waste gas are treated by adsorption recovery, and the gas treated by adsorption recovery is fully combusted after being transported to combustion furnace 4 by pipeline and then is discharged.

[0024] As Figure 1 The side wall top of waste gas storage tank 1 is connected with inlet pipe 11, the gas inlet end of inlet pipe 11 is connected with gas collecting hood at each process, the side wall bottom of waste gas storage tank 1 is connected with gas delivery pipe 12 relative to the side of connecting inlet pipe 11, gas delivery pipe 12 is connected with waste gas treatment tower 2 and is installed with air draught fan 13 for conveying waste gas to waste gas treatment tower 2 on gas delivery pipe 12, and the organic waste gas is stored after being collected by gas collecting hood and transported to waste gas storage tank 1, when the waste gas in waste gas storage tank 1 reaches certain amount, start air draught fan 13, and air draught fan 13 conveys the waste gas in waste gas storage tank 1 to waste gas treatment tower 2 by gas delivery pipe 12 and carries out adsorption recovery treatment.

[0025] As Figure 1 And Figure 2 The side wall of waste gas treatment tower 2 is provided with gas inlet 21, one end of gas delivery pipe 12 is connected with gas inlet 21, the top wall of waste gas treatment tower 2 is provided with gas outlet 22, and the connecting pipe 221 for discharging treated gas is connected on gas outlet 22, one end of connecting pipe 221 is connected with combustion furnace 4, the side wall bottom of waste gas treatment tower 2 relative to the side of being provided with gas inlet 21 is provided with liquid outlet 23 matched with circulation liquid storage tank 3, and the inside of waste gas treatment tower 2 is installed with gas distribution plate 24 for guiding flow and distributing waste gas and adsorption assembly 25 for adsorbing and treating waste gas, gas distribution plate 24 is arranged above gas inlet 21, and adsorption assembly 25 is arranged on gas distribution plate 24, and wire mesh demister 26 for removing foam in gas is also installed at the inside top end of waste gas treatment tower 2, and wire mesh demister 26 is arranged directly below gas outlet 22.

[0026] As Figure 2 And Figure 3As shown, the gas distribution plate 24 includes a frame 241 mounted on the inner wall of the exhaust gas treatment tower 2, and a plurality of plate bodies 242 uniformly arranged in the frame 241, the frame 241 is fixedly connected or integrally formed with the plurality of plate bodies 242, the plurality of plate bodies 242 are arranged in parallel and the spacing between every two plate bodies 242 is equal, and the gas distribution slots 243 for passing the exhaust gas are formed between every two plate bodies 242 and between the plate bodies 242 and the frame 241, the exhaust gas entering the exhaust gas treatment tower 2 flows upward through the gas distribution slots 243 on the gas distribution plate 24 and enters the adsorption assembly 25 for adsorption treatment.

[0027] As shown in Figure 2 and Figure 4 The adsorption assembly 25 includes a frame 251 mounted on the inner wall of the exhaust gas treatment tower 2, a first partition plate 252 arranged in the frame 251, a second partition plate 253 arranged in the first partition plate 252, the first partition plate 252 and the second partition plate 253 are both polygonal column structures and the number of sides of the first partition plate 252 is consistent with that of the second partition plate 253, the outer corner edges of the second partition plate 253 are connected with the inner corner edges of the first partition plate 252 and the outer corner edges of the first partition plate 252 are connected with the inner wall of the frame 251, and the frame 251, the first partition plate 252, the second partition plate 253 and the plurality of baffle plates 254 form a plurality of filling slots (not shown in the figure), and each of the filling slots is filled with a mixed filler layer 255, in the embodiment, the mixed filler layer 255 is a mixture of molecular sieve and activated carbon, the particle size of the molecular sieve is larger than that of the activated carbon, and the volume ratio of the molecular sieve to the activated carbon is 4:1.

[0028] As shown in Figure 1 and Figure 2 The top of the circulating liquid tank 3 is provided with a delivery pump 31 for delivering the circulating absorption liquid into the exhaust gas treatment tower 2, the delivery pump 31 is connected with the inside of the circulating liquid tank 3, a delivery pipe 32 is connected with the delivery pump 31, one end of the delivery pipe 32 extends to the inside of the exhaust gas treatment tower 2 through the top of the side wall of the exhaust gas treatment tower 2, and a spray head 321 for spraying the circulating absorption liquid is mounted on the end of the delivery pipe 32 in the inside of the exhaust gas treatment tower 2, the spray head 321 is arranged between the adsorption assembly 25 and the wire mesh demister 26, and the nozzles of the spray head 321 are arranged opposite to the adsorption assembly 25, and a return pipe 33 is also connected with the bottom of the side wall of the circulating liquid tank 3, one end of the return pipe 33 is connected with the liquid outlet 23 at the bottom of the side wall of the exhaust gas treatment tower 2, the circulating absorption liquid in the circulating liquid tank 3 is extracted by the delivery pump 31, delivered to the spray head 321 through the delivery pipe 32, and sprayed onto the adsorption assembly 25, the circulating absorption liquid dissolves the organic matters in the exhaust gas after contacting with the exhaust gas to improve the recovery rate of the organic matters in the exhaust gas, and then flows to the bottom of the exhaust gas treatment tower 2 and returns to the circulating liquid tank 3 through the return pipe 33, in the embodiment, the circulating absorption liquid is an ethanol aqueous solution, and the mass ratio of ethanol to water is 7:3.

[0029] When the waste gas is treated, the induced draft fan 13 and the delivery pump 31 are started, the induced draft fan 13 delivers the waste gas in the waste gas storage tank 1 to the waste gas treatment tower 2 through the gas delivery pipe 12, the waste gas entering the waste gas treatment tower 2 flows upward after being uniformly distributed by the uniform distribution groove 243 on the gas distribution plate 24 and enters the adsorption assembly 25 to fully contact with the mixed filler layer 255, so as to perform adsorption treatment, at the same time, the delivery pump 31 extracts the circulating absorption liquid in the circulating liquid storage tank 3 and delivers it to the spray head 321 through the delivery pipe 32 and sprays it onto the adsorption assembly 25, the circulating absorption liquid dissolves the organic matters in the waste gas after contacting with the waste gas, and then flows to the bottom of the waste gas treatment tower 2 and returns to the circulating liquid storage tank 3 through the return pipe 33.

[0030] The unsaturated polyester resin waste gas treatment system 100 provided by the utility model includes a waste gas treatment tower 2 for treating waste gas, a circulating liquid storage tank 3 arranged on one side of the waste gas treatment tower 2 and connected with the waste gas treatment tower 2 for circulating and conveying absorption liquid into the waste gas treatment tower 2, an adsorption assembly 25 for adsorbing and treating waste gas is installed in the waste gas treatment tower 2, the adsorption assembly 25 includes a frame 251 installed on the inner wall of the waste gas treatment tower 2, a first baffle 252 is arranged in the frame 251, a second baffle 253 is arranged in the first baffle 252, the first baffle 252 and the second baffle 253 are both polygonal column structures and the number of edges of the first baffle 252 is consistent with that of the second baffle 253, the outer edge of the second baffle 253 and the inner edge of the first baffle 252 and the outer edge of the first baffle 252 are all connected with baffle plates 254 on the inner wall of the frame 251, the frame 251, the first baffle 252, the second baffle 253 and the plurality of baffle plates 254 jointly form a plurality of filling grooves, each filling groove is filled with a mixed filler layer 255, a delivery pump 31 for conveying circulating absorption liquid into the waste gas treatment tower 2 is installed on the top of the circulating liquid storage tank 3, a delivery pipe 32 is connected with the delivery pump 31, one end of the delivery pipe 32 extends to the inside of the waste gas treatment tower 2 through the top of the side wall of the waste gas treatment tower 2, a spray head 321 for spraying circulating absorption liquid is installed at the end of the delivery pipe 32 in the waste gas treatment tower 2, the nozzle of the spray head 321 is arranged opposite to the adsorption assembly 25, after the circulating absorption liquid in the circulating liquid storage tank 3 is extracted by the delivery pump 31, the circulating absorption liquid is conveyed to the spray head 321 through the delivery pipe 32 and sprayed onto the adsorption assembly 25, the waste gas flowing into the waste gas treatment tower 2 flows upwards and enters the adsorption assembly 25 and fully contacts with the mixed filler layer 255, so that adsorption treatment is carried out, meanwhile, after the circulating absorption liquid in the circulating liquid storage tank 3 is extracted by the delivery pump 31, the circulating absorption liquid is conveyed to the spray head 321 through the delivery pipe 32 and sprayed onto the adsorption assembly 25, after the circulating absorption liquid contacts with the waste gas, the organic matters in the waste gas are dissolved, the recovery rate of the organic matters in the waste gas can be effectively improved, meanwhile, the circulating absorption liquid sprayed on the mixed filler layer 255 can absorb the heat generated when the mixed filler layer 255 is adsorbed, the overheat of the mixed filler layer 255 is avoided, the active carbon is not inactivated, the use time of the mixed filler layer 255 is prolonged, and the waste gas treatment efficiency is improved.

[0031] Based on the above ideal embodiments of the utility model, through the above description, relevant staff can make various changes and modifications without deviating from the scope of the utility model. The technical scope of the utility model is not limited to the content in the specification, and must be determined according to the scope of claims.

Claims

1. An unsaturated polyester resin off-gas treatment system characterized by comprising: The application relates to an unsaturated polyester resin waste gas treatment system, which comprises a waste gas treatment tower, a circulating liquid storage tank arranged on one side of the waste gas treatment tower, a frame arranged on the inner wall of the waste gas treatment tower, a first partition plate arranged in the frame, a second partition plate arranged in the first partition plate, the first partition plate and the second partition plate being polygonal column structures and the number of edges of the first partition plate being consistent with that of the second partition plate, a baffle being arranged on the outer edge of the second partition plate, the inner edge of the first partition plate and the outer edge of the first partition plate, a plurality of filling grooves being formed by the frame, the first partition plate, the second partition plate and the baffles, a mixed filler layer being filled in the filling grooves, a conveying pump being arranged on the top of the circulating liquid storage tank, a conveying pipe being connected to the conveying pump, one end of the conveying pipe extending to the inside of the waste gas treatment tower through the top of the side wall of the waste gas treatment tower, a spray head being arranged on the end of the conveying pipe in the waste gas treatment tower, and the nozzle of the spray head being arranged opposite to the adsorption assembly.

2. The unsaturated polyester resin off-gas treatment system according to claim 1, characterized by, An air inlet is arranged on the side wall of the waste gas treatment tower, an air outlet is arranged on the top wall of the waste gas treatment tower, a connecting pipe is connected to the air outlet, a liquid outlet is arranged on the bottom of the side wall opposite to the side wall provided with the air inlet.

3. The unsaturated polyester resin off-gas treatment system according to claim 2, characterized by, A gas distribution plate is arranged in the waste gas treatment tower, the gas distribution plate is arranged above the air inlet, and the adsorption assembly is arranged on the gas distribution plate.

4. The unsaturated polyester resin off-gas treatment system according to claim 3, characterized by The gas distribution plate comprises a frame arranged on the inner wall of the waste gas treatment tower and a plurality of plate bodies arranged in the frame, the frame is fixedly connected or integrally formed with the plate bodies, the plate bodies are arranged in parallel and the distance between every two plate bodies is equal, and a distribution groove is formed between every two plate bodies and between the plate bodies and the frame.

5. The unsaturated polyester resin off gas treatment system according to claim 2, wherein A wire mesh demister is arranged at the top end of the waste gas treatment tower, the wire mesh demister is arranged directly below the air outlet, and the spray head is arranged between the adsorption assembly and the wire mesh demister.

6. The unsaturated polyester resin off gas treatment system according to claim 2, wherein A return pipe is further connected to the bottom of the side wall of the circulating liquid storage tank, and one end of the return pipe is connected to the liquid outlet.

7. The unsaturated polyester resin off gas treatment system according to claim 2, wherein The unsaturated polyester resin waste gas treatment system further comprises a waste gas storage tank and a combustion furnace, a gas conveying pipe is connected to the bottom of the side wall of the waste gas storage tank, one end of the gas conveying pipe is connected to the air inlet, and one end of the connecting pipe is connected to the combustion furnace.

8. The unsaturated polyester resin off gas treatment system according to claim 7, characterized by, An air inlet pipe is connected to the top of the side wall of the waste gas storage tank, and the air inlet end of the air inlet pipe is connected to a gas collecting cover.

9. The unsaturated polyester resin off gas treatment system according to claim 7, wherein An air blower is arranged on the gas conveying pipe.

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