Waste gas safety treatment equipment for phenolic resin production

Abstract

The utility model relates to the technical field of waste gas treatment and discloses waste gas safety treatment equipment for phenolic resin production, which comprises a waste gas purification tower, a water storage tank and a demister, the water storage tank and the demister are movably mounted on one side of the waste gas purification tower, a filter screen is fixedly mounted in the waste gas purification tower, and a first servo motor is fixedly mounted at the top of the filter screen. A first scraping plate is fixedly installed at the output end of the first servo motor, a discharging opening is formed in the front end of the waste gas purification tower, and a sealing door is rotationally installed at the front end of the discharging opening. The activated carbon adsorption balls are placed at the top of the filter screen, the first servo motor drives the first scraper to rotate so that the activated carbon adsorption balls can be evenly laid on the top of the filter screen, the activated carbon adsorption balls adsorb impurities in waste gas on the surfaces of the activated carbon adsorption balls, and the impurity adsorption area is increased; the problem that the purification efficiency is reduced due to small adsorption area of an activated carbon adsorption net is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a waste gas safety treatment device for phenolic resin production. Background Art

[0002] Phenolic resin, also known as bakelite or bakelite powder, is an important engineering material. Its most important feature is high temperature resistance. Even at high temperatures, it can maintain the integrity of its structure and the stability of its dimensions. Therefore, it is used in some high-temperature fields, such as refractory insulation materials, friction materials, insulation products, adhesives and foundry industries.

[0003] Among them, the "waste gas treatment equipment for phenolic resin production" disclosed by the authorization number "CN217410321 U" is set up through a specific technical structure. The waste gas is injected into the neutralizer in the neutralization tank through the waste gas pipe for neutralization. Several through holes on the upper end of the waste gas pipe can make the waste gas and the neutralizer fully contact and react. The filter net can block the reactants and make them concentrate as much as possible under the liquid, so that they can be discharged through the discharge port. The activated carbon filter layer in the air delivery pipe can absorb some fine particles in the waste gas, so as to achieve the effect of safer exhaust gas discharge;

[0004] Although the phenolic resin waste gas treatment equipment can solve the problem of environmental pollution caused by waste gas, most of the current phenolic resin waste gas treatment is to add an activated carbon adsorption net in the purification tower to achieve the effect of safe and pollution-free discharged waste gas. However, the adsorption surface area of ​​the activated carbon adsorption net is relatively limited, which makes its service life short and reduces the purification efficiency. In addition, the phenolic resin needs to be neutralized with alkaline solution before purification. However, there is a lack of recycling mechanism for the excess alkaline solution, resulting in waste of resources.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a safe waste gas treatment equipment for phenolic resin production, wherein activated carbon adsorption balls are placed on the top of the filter, and a first servo motor drives a first scraper to rotate so that the first scraper evenly spreads the activated carbon adsorption balls on the top of the filter. After the phenolic resin waste gas is purified, the activated carbon adsorption balls adsorb impurities in the waste gas on the surface thereof, thereby increasing the impurity adsorption area and solving the problem that the activated carbon adsorption net has a small adsorption area and reduces the purification efficiency. Excess alkali liquid falls to the bottom of the waste gas purification tower, and then a second water suction pump can suck the alkali liquid solution inside the waste gas purification tower into the water storage tank through a reflux pipe for reuse, thereby avoiding the waste of excess alkali liquid solution.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0008] A safe waste gas treatment device for phenolic resin production, comprising a waste gas purification tower, a water storage tank and a demister movably installed on one side of the waste gas purification tower, a filter screen fixedly installed inside the waste gas purification tower, a first servo motor fixedly installed on the top of the filter screen, a first scraper fixedly installed on the output end of the first servo motor, a discharge port is opened at the front end of the waste gas purification tower, a sealing door is rotatably installed at the front end of the discharge port, a reflux pipe is fixedly installed at the bottom of the waste gas purification tower, one end of the reflux pipe is connected to the top of the other side of the water storage tank, and a second water suction pump is fixedly installed at the connection port between the reflux pipe and the water storage tank.

[0009] Preferably, a second scraper is slidably installed at the bottom of the first scraper, a fixed block is fixedly installed on one side of the second scraper, an L-shaped groove is opened inside the fixed block, a sliding rod corresponding to the L-shaped groove is fixedly installed on one side of the first scraper, and the sliding rod is slidably installed inside the L-shaped groove.

[0010] Preferably, an air inlet is fixedly installed through the bottom of the other side of the exhaust gas purification tower, and a demister is fixedly installed inside the exhaust gas purification tower, and the demister is located at the bottom of the nozzle.

[0011] Preferably, an exhaust port is fixedly installed through the top of the exhaust gas purification tower, and a first feed port is fixedly installed through the other side of the top of the exhaust gas purification tower.

[0012] Preferably, a drain pipe is fixedly installed between the exhaust gas purification tower and the water storage tank, a first water suction pump is fixedly connected to the connecting port of the drain pipe and the exhaust gas purification tower, a water spray pipe is fixedly installed through the drain pipe inside the exhaust gas purification tower, the water spray pipe is located at the bottom of the filter net, and nozzles are evenly and fixedly installed at the bottom of the water spray pipe.

[0013] Preferably, a second servo motor is fixedly mounted on the top of the water storage tank, a stirring paddle is fixedly mounted on the outer side of the output end of the second servo motor, and a second feed is fixedly mounted through one side of the top of the water storage tank.

[0014] Compared with the prior art, the utility model provides a waste gas safety treatment device for phenolic resin production, which has the following beneficial effects:

[0015] 1. The utility model places the activated carbon adsorption ball on the top of the filter screen, and the first servo motor drives the first scraper to rotate so that the first scraper evenly spreads the activated carbon adsorption ball on the top of the filter screen. The activated carbon adsorption ball adsorbs impurities in the exhaust gas on its surface, thereby increasing the impurity adsorption area and solving the problem that the activated carbon adsorption net has a small adsorption area and reduces the purification efficiency.

[0016] 2. After purification, the excess alkali solution falls to the bottom of the waste gas purification tower. Then the second water suction pump can suck the alkali solution inside the waste gas purification tower into the water storage tank through the reflux pipe for reuse, avoiding the waste of excess alkali solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the rear view structure of the waste gas purification tower of the utility model;

[0019] Figure 3 This is a schematic diagram of the front cross-sectional structure of the waste gas purification tower of the utility model;

[0020] Figure 4 This is a schematic diagram of the front cross-sectional structure of the water storage tank of the utility model;

[0021] Figure 5 It is a schematic diagram of the split structure of the first scraper of the utility model.

[0022] In the figure: 1. exhaust gas purification tower; 101. filter screen; 102. first servo motor; 103. first scraper; 104. discharge port; 105. sealing door; 106. second scraper; 107. fixing block; 108. L-shaped slide; 109. slide bar; 110. air inlet; 111. exhaust port; 112. first feed port; 2. water storage tank; 201. drain pipe; 202. first water suction pump; 203. water spray pipe; 204. nozzle; 205. second servo motor; 206. stirring paddle; 207. second feed port; 208. reflux pipe; 209. second water suction pump; 3. demister. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a waste gas safety treatment equipment for phenolic resin production.

[0025] See also Figure 1 - Figure 5A waste gas safety treatment equipment for phenolic resin production, comprising a waste gas purification tower 1, a water storage tank 2 and a demister 3 movably installed on one side of the waste gas purification tower 1, a filter screen 101 is fixedly installed inside the waste gas purification tower 1, a first servo motor 102 is fixedly installed on the top of the filter screen 101, a first scraper 103 is fixedly installed at the output end of the first servo motor 102, a discharge port 104 is opened at the front end of the waste gas purification tower 1, a sealing door 105 is rotatably installed at the front end of the discharge port 104, a reflux pipe 208 is fixedly installed at the bottom of the waste gas purification tower 1, one end of the reflux pipe 208 is connected to the top of the other side of the water storage tank 2, and a second water suction pump 209 is fixedly installed at the connection port between the reflux pipe 208 and the water storage tank 2.

[0026] Specifically, by placing the activated carbon adsorption balls on the top of the filter 101, the first servo motor 102 drives the first scraper 103 to rotate so that the first scraper 103 evenly spreads the activated carbon adsorption balls on the top of the filter 101, and the activated carbon adsorption balls adsorb impurities in the exhaust gas on its surface, thereby increasing the adsorption area of ​​the impurities. Then, the activated carbon adsorption balls can be taken out and replaced through the discharge port 104, thereby solving the problem of limited adsorption area of ​​the activated carbon adsorption net and reducing the purification efficiency. Then, the excess alkali solution falls to the bottom of the exhaust gas purification tower 1, and the second water suction pump 209 sucks the alkali solution inside the exhaust gas purification tower 1 into the water storage tank 2 through the reflux pipe 208 for reuse, thereby avoiding the waste of alkali solution.

[0027] Furthermore, a second scraper 106 is slidably mounted on the bottom of the first scraper 103, a fixed block 107 is fixedly mounted on one side of the second scraper 106, an L-shaped slide groove 108 is formed inside the fixed block 107, a slide rod 109 corresponding to the L-shaped slide groove 108 is fixedly mounted on one side of the first scraper 103, and the slide rod 109 is slidably mounted inside the L-shaped slide groove 108;

[0028] Specifically, when the staff needs to replace the activated carbon adsorption ball on the top of the filter 101, the sliding rod 109 is slid into the L-shaped slide groove 108, and then the second scraper 106 is slidably installed on the bottom of the first scraper 103, and then the sliding rod 109 moves upward inside the L-shaped slide groove 108, so that the second scraper 106 is horizontally fixedly installed on the bottom of the first scraper 103, and then the second scraper 106 can push the activated carbon adsorption ball inside the filter 101 to the outlet of the discharge port 104, so that the staff can take out the activated carbon adsorption ball conveniently. When not in use, the second scraper 106 is disassembled;

[0029] Furthermore, an air inlet 110 is fixedly installed through the bottom of the other side of the exhaust gas purification tower 1, and a demister 3 is fixedly installed inside the exhaust gas purification tower 1, and the demister 3 is located at the bottom of the nozzle 204;

[0030] Furthermore, an exhaust port 111 is fixedly installed through the top of the exhaust gas purification tower 1, and a first feed port 112 is fixedly installed through the other side of the top of the exhaust gas purification tower 1;

[0031] Furthermore, a drain pipe 201 is fixedly installed between the exhaust gas purification tower 1 and the water storage tank 2, and a first water suction pump 202 is fixedly connected to the connection port of the drain pipe 201 and the exhaust gas purification tower 1. A water spray pipe 203 is fixedly installed through the drain pipe 201 inside the exhaust gas purification tower 1, and the water spray pipe 203 is located at the bottom of the filter 101. A nozzle 204 is evenly fixedly installed at the bottom of the water spray pipe 203;

[0032] Specifically, activated carbon adsorption balls are added to the top of the filter 101 through the first feed port 112, and the waste gas generated by the phenolic resin is introduced into the waste gas purification tower 1 through the air inlet 110. Then the waste gas rises, and when passing through the demister 3, the mist in the waste gas is removed, and then the waste gas continues to rise, and the first water suction pump 202 sucks the alkali solution in the water storage tank 2 into the inside of the water spray pipe 203 through the drain pipe 201, and sprays it out through the nozzle 204 to neutralize and purify the waste gas. Then, when the waste gas rises and passes through the activated carbon adsorption balls on the top of the filter 101, the impurities in the waste gas are adsorbed on the surface of the activated carbon adsorption balls, and then the purified waste gas is discharged through the exhaust port 111, thereby improving the purification effect of the phenolic resin;

[0033] Furthermore, a second servo motor 205 is fixedly installed on the top of the water storage tank 2, a stirring paddle 206 is fixedly installed on the outer side of the output end of the second servo motor 205, and a second feed 207 is fixedly installed through one side of the top of the water storage tank 2;

[0034] Specifically, sodium hydroxide and pure water for preparing alkaline solution can be added into the water storage tank 2 through the second feed 207, and the stirring paddle 206 driven by the second servo motor 205 is slowly stirred and mixed to obtain alkaline solution, thereby improving the purification efficiency of phenolic resin waste gas.

[0035] Working principle: First, the staff adds the activated carbon adsorption ball to the top of the filter screen 101 inside the exhaust gas purification tower 1 through the first feed port 112, and then the first servo motor 102 drives the first scraper 103 to rotate, so that the first scraper 103 scrapes the activated carbon adsorption ball flat, so that it is evenly spread on the top of the filter screen 101, and then the waste gas generated by the phenolic resin is discharged into the interior of the exhaust gas purification tower 1 through the air inlet 110, and the waste gas is removed by the demister 3. Then the first water suction pump 202 removes the alkali in the water storage tank 2 through the drain pipe 201. The liquid is sucked into the interior of the water spray pipe 203, and is sprayed out through the nozzle 204 in an atomized form to neutralize and purify the waste gas. The excess alkali liquid falls on the bottom of the waste gas purification tower 1, and then the purified phenolic resin waste gas rises through the filter screen 101. The activated carbon adsorption ball on the top of the filter screen 101 adsorbs harmful impurities in the purified waste gas on its surface, so that the safe waste gas is discharged through the exhaust port 111. The second water suction pump 209 refluxes the excess alkali liquid through the reflux pipe 208 and sucks it into the water storage tank 2 for reuse, thereby avoiding waste of resources.

[0036] When the activated carbon adsorption balls inside the exhaust gas purification tower 1 need to be replaced, the discharge port 104 is opened through the sealing door 105, and then the slide bar 109 is slid into the L-shaped slide groove 108, and then the second scraper 106 is slid and installed on the bottom of the first scraper 103, and then the slide bar 109 moves upward inside the L-shaped slide groove 108, so that the second scraper 106 is horizontally fixed on the bottom of the first scraper 103, and the first servo motor 102 drives the second scraper 106 to rotate, and pushes the activated carbon adsorption balls on the inside of the filter 101 to the outlet of the discharge port 104, so that the staff can take out the activated carbon adsorption balls and replace them.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste gas safety treatment device for phenolic resin production, comprising a waste gas purification tower (1), a water storage tank (2) and a demister (3) movably mounted on one side of the waste gas purification tower (1), characterized in that: A filter screen (101) is fixedly installed inside the exhaust gas purification tower (1), a first servo motor (102) is fixedly installed on the top of the filter screen (101), a first scraper (103) is fixedly installed on the output end of the first servo motor (102), a discharge port (104) is provided at the front end of the exhaust gas purification tower (1), a sealing door (105) is rotatably installed at the front end of the discharge port (104), a return pipe (208) is fixedly installed through the bottom of the exhaust gas purification tower (1), one end of the return pipe (208) is connected to the top of the other side of the water storage tank (2), and a second water suction pump (209) is fixedly installed at the connection port between the return pipe (208) and the water storage tank (2).

2. The waste gas safety treatment equipment for phenolic resin production according to claim 1, characterized in that: A second scraper (106) is slidably mounted at the bottom of the first scraper (103); a fixed block (107) is fixedly mounted on one side of the second scraper (106); an L-shaped slide groove (108) is provided through the interior of the fixed block (107); a slide rod (109) corresponding to the L-shaped slide groove (108) is fixedly mounted on one side of the first scraper (103); and the slide rod (109) is slidably mounted inside the L-shaped slide groove (108).

3. The waste gas safety treatment equipment for phenolic resin production according to claim 1, characterized in that: An air inlet (110) is fixedly installed through the bottom of the other side of the exhaust gas purification tower (1), and a demister (3) is fixedly installed inside the exhaust gas purification tower (1), and the demister (3) is located at the bottom of the nozzle (204).

4. The waste gas safety treatment equipment for phenolic resin production according to claim 1, characterized in that: An exhaust port (111) is fixedly installed through the top of the waste gas purification tower (1), and a first feed port (112) is fixedly installed through the other side of the top of the waste gas purification tower (1).

5. The waste gas safety treatment equipment for phenolic resin production according to claim 1, characterized in that: A drainage pipe (201) is fixedly installed between the exhaust gas purification tower (1) and the water storage tank (2); a first water suction pump (202) is fixedly connected to the connection port of the drainage pipe (201) and the exhaust gas purification tower (1); a water spray pipe (203) is fixedly installed inside the exhaust gas purification tower (1) through the drainage pipe (201); the water spray pipe (203) is located at the bottom of the filter screen (101); and a spray head (204) is evenly fixedly installed at the bottom of the water spray pipe (203).

6. The waste gas safety treatment equipment for phenolic resin production according to claim 1, characterized in that: A second servo motor (205) is fixedly mounted on the top of the water storage tank (2), a stirring paddle (206) is fixedly mounted on the outside of the output end of the second servo motor (205), and a second feed (207) is fixedly mounted through one side of the top of the water storage tank (2).

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