A waste gas purification device for a naphthalene-based phthalic anhydride production device

Abstract

The invention discloses a waste gas purification device for a naphthalene process phthalic anhydride production device, relates to the technical field of waste gas purification, and comprises a purification component. A pressurizing quantitative mechanism is arranged at the top of the purification component. The pressurizing quantitative mechanism is used for pressurizing the gas inside a temperature regulating tube and automatically controlling the degassing of waste gas in a primary adsorption space during the pressurizing process. The pressurizing quantitative mechanism can also automatically complete the plugging of a water guide pipe after pressurizing, and accelerate the mixing speed of the low-temperature water mist and the waste gas by pressurizing the low-temperature water mist. After the waste gas is adsorbed once by an activated carbon plate one, the waste gas after the primary adsorption is quantitatively placed in a secondary adsorption space by reciprocating motion of a plugging plate. At the same time, the adsorption area of ​​the activated carbon plate two is smaller than that of the activated carbon plate one, so as to prolong the time that the waste gas stays in the secondary adsorption air, thereby ensuring that harmful substances in the waste gas have sufficient time to be adsorbed by the activated carbon plate two, thereby improving the purification effect of the waste gas.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas purification, in particular to waste gas purification equipment for a naphthalene process phthalic anhydride production device. Background Art

[0002] The waste gas generated during the production of naphthalene-based phthalic anhydride generally includes organic vapor, hydrocarbons, and nitrogen oxides. The purification methods include absorption, activated carbon adsorption, combustion, catalytic oxidation, and liquid oxidation. The strong adsorption properties of activated carbon are used to adsorb harmful gases such as organic vapor and hydrocarbons on the activated carbon to achieve the purpose of purifying the waste gas.

[0003] The existing waste gas purification equipment still has the following defects after use:

[0004] 1. When using activated carbon to purify waste gas, since the reaction of naphthalene-based phthalic anhydride production usually needs to be carried out under high temperature conditions, the temperature of the waste gas generated may be relatively high, which may easily lead to changes in the pore structure of the activated carbon, causing the activity of the activated carbon to weaken, thereby affecting the adsorption performance of the activated carbon. At the same time, in a high temperature environment, the organic matter in the waste gas may undergo thermal decomposition, resulting in the desorption of the substances adsorbed on the activated carbon, reducing the purification effect of the waste gas.

[0005] 2. In the process of using activated carbon to purify waste gas, the waste gas is continuously transported to the space where the activated carbon is located, resulting in excessive waste gas in the space where the activated carbon is located. In turn, harmful gases of different components in the waste gas will compete to be adsorbed on the surface of the activated carbon, making it difficult for some harmful gases in the waste gas to be effectively adsorbed on the surface of the activated carbon, which in turn leads to the inability to completely remove harmful gases in the waste gas. Summary of the invention

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a waste gas purification device for a naphthalene process phthalic anhydride production device, which can effectively solve the problems in the prior art that the waste gas temperature is too high, which weakens the activity of activated carbon, and that excessive waste gas leads to the inability to completely remove harmful gases in the waste gas.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The invention discloses an exhaust gas purification device for a naphthalene process phthalic anhydride production device, comprising a purification component, wherein the purification component comprises a purification box, the top of the purification box is fixedly connected with a guide pipe, one side of the purification box is fixedly connected with an exhaust pipe, the outer surface of the exhaust pipe is fixedly connected with a temperature regulating pipe, the outer surface of the temperature regulating pipe is fixedly connected with a water guide pipe, and the top of the purification component is provided with a pressurized quantitative mechanism;

[0009] The purification component is used to cool and humidify the waste gas before purifying it. The purification component can also quantitatively place the waste gas into the secondary adsorption space after the primary adsorption;

[0010] The pressurizing quantitative mechanism is used to pressurize the gas inside the temperature regulating tube and automatically control the discharge of the exhaust gas in the primary adsorption space during the pressurizing process. The pressurizing quantitative mechanism can also automatically complete the blocking of the water pipe after pressurization.

[0011] Furthermore, a cooling cavity is opened inside the exhaust pipe, the inner wall of the cooling cavity is fixedly connected to a cold air pipe, a cooling cavity is opened inside the temperature regulating pipe, the inner wall of the cooling cavity is fixedly connected to one end of the cold air pipe close to the water pipe, and an atomizing plate is fixedly connected inside the temperature regulating pipe.

[0012] Furthermore, an activated carbon plate 1 is fixedly connected to the inner wall of the purification box, an adjustment plate is fixedly connected to the inner wall of the purification box, an air guide port is opened at the top of the adjustment plate, the adjustment plate is located above the activated carbon plate 1, and a mounting plate is fixedly connected to the inner wall of the purification box, an activated carbon plate 2 is fixedly connected to the inside of the mounting plate, and the activated carbon plate 2 is directly opposite to the air guide port.

[0013] Furthermore, the pressurized quantitative mechanism includes a drive box, which is fixedly connected to a side of the purification box close to the exhaust pipe, and the drive box is movably connected to an electric push rod inside. The end of the piston rod inside the electric push rod close to the purification box is fixedly connected to an L-shaped push frame, and the end of the L-shaped push frame close to the temperature regulating tube is fixedly connected to a trapezoidal lifting block, and the bottom end of the trapezoidal lifting block is slidably connected to the inner wall of the drive box.

[0014] Furthermore, the inner wall of the drive box is fixedly connected to a limit plate, the top of the limit plate is fixedly connected to a limit block, the L-shaped push frame is slidably connected to a side of the limit plate close to the electric push rod, the top of the limit block is slidably connected to a lifting frame, the end of the lifting frame close to the temperature regulating tube is fixedly connected to a transmission block, and the transmission block can slide on the top of the trapezoidal lifting block.

[0015] Furthermore, the top of the lifting frame is fixedly connected to a transmission frame, the transmission frame is slidably connected to a side of the drive box close to the temperature regulating tube, and one end of the transmission frame close to the temperature regulating tube is fixedly connected to a compression block, and the radius of the compression block is adapted to the inner diameter of the temperature regulating tube.

[0016] Furthermore, the outer surface of the lifting frame is fixedly connected to a mounting chassis, the top of the mounting chassis is fixedly connected to a spring, the top of the spring is fixedly connected to the bottom end of the limit block, and the spring is sleeved on the outer surface of the lifting frame.

[0017] Furthermore, one end of the L-shaped push frame away from the trapezoidal lifting block is fixedly connected to a transmission plate, and the transmission plate is slidably connected to a side of the purification box close to the driving box. The end of the transmission plate away from the L-shaped push frame is fixedly connected to a blocking plate, and the blocking plate is slidably connected to the inner wall of the purification box.

[0018] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects:

[0019] 1. An atomizing plate, a second activated carbon plate, a compression block and a blocking plate are provided. The compression block reciprocates from top to bottom and drives the blocking plate to reciprocate in the horizontal direction. Then, during the reciprocating motion of the compression block, the low-temperature water mist atomized by the atomizing plate is pressurized by the air compression principle to accelerate the mixing speed of the low-temperature water mist and the exhaust gas. After the exhaust gas is adsorbed once by the activated carbon plate one, the exhaust gas adsorbed once is quantitatively placed in the secondary adsorption space through the reciprocating motion of the blocking plate, thereby ensuring that the surface of the second activated carbon plate is fully utilized, avoiding local over-adsorption or insufficient adsorption on the surface of the second activated carbon plate. At the same time, the adsorption area of ​​the second activated carbon plate is smaller than the adsorption area of ​​the first activated carbon plate to extend the time that the exhaust gas stays in the secondary adsorption air, thereby ensuring that the harmful substances in the exhaust gas have sufficient time to be adsorbed by the second activated carbon plate, thereby improving the purification effect of the exhaust gas.

[0020] 2. By providing a cold air pipe, a temperature regulating pipe and a water pipe, the cold air is introduced into the cooling chamber and the cooling chamber through the cold air pipe, and then the exhaust gas entering the exhaust pipe is cooled simultaneously during the process of cooling the water entering the temperature regulating pipe. The cooled water is atomized by the atomizing plate to form water mist, and is sprayed out under the pressure of the compression block to mix with the exhaust gas in the exhaust pipe, thereby increasing the humidity of the exhaust gas, thereby reducing the dust content in the exhaust gas, and thereby reducing the blockage and pollution of the surface of the activated carbon plate, ensuring that the activated carbon plate can normally adsorb the exhaust gas once, and in the process of increasing the humidity of the exhaust gas, the temperature of the exhaust gas is reduced by the double cooling of the cooling chamber and the water mist formed after the water is cooled, slowing down the saturation rate of the activated carbon plate, and reducing the thermal shock of the exhaust gas on the subsequent equipment due to the high temperature, thereby extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 It is a three-dimensional structural diagram of the present invention from another angle;

[0024] Figure 3 It is a three-dimensional structural diagram of the purification component and the pressurized quantitative mechanism in the present invention;

[0025] Figure 4 It is a partial three-dimensional structural diagram of the purification component in the present invention;

[0026] Figure 5 It is a cross-sectional structural diagram of the regulating plate and the blocking plate in the present invention;

[0027] Figure 6 The local three-dimensional structure of the purification component and the pressurized quantitative mechanism in the present invention Figure 1 ;

[0028] Figure 7 The local three-dimensional structure of the purification component and the pressurized quantitative mechanism in the present invention Figure 2 ;

[0029] Figure 8 The local three-dimensional structure of the purification component and the pressurized quantitative mechanism in the present invention Figure 3 .

[0030] The numbers in the figure represent:

[0031] 100, purification component; 101, purification box; 102, exhaust pipe; 103, cold air pipe; 104, temperature control pipe; 105, water pipe; 106, atomizing plate; 107, outlet pipe; 108, activated carbon plate 1; 109, regulating plate; 110, mounting plate; 111, activated carbon plate 2;

[0032] 200, pressurized quantitative mechanism; 201, drive box; 202, electric push rod; 203, L-shaped push frame; 204, trapezoidal lifting block; 205, transmission block; 206, lifting frame; 207, mounting chassis; 208, limit plate; 209, limit block; 210, spring; 211, transmission frame; 212, compression block; 213, transmission plate; 214, blocking plate. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] The present invention will be further described below in conjunction with the embodiments.

[0035] The waste gas purification equipment of a naphthalene-based phthalic anhydride production device of this embodiment is as follows: Figures 1 to 8 As shown, it includes a purification component 100, which includes a purification box 101, a top of the purification box 101 is fixedly connected with a guide pipe 107, a side of the purification box 101 is fixedly connected with an exhaust pipe 102, an outer surface of the exhaust pipe 102 is fixedly connected with a temperature regulating pipe 104, and an outer surface of the temperature regulating pipe 104 is fixedly connected with a water guide pipe 105;

[0036] In view of the above-mentioned purification component 100, it can be specifically implemented as follows:

[0037] The purification component 100 is used to cool and humidify the waste gas before purifying the waste gas. The purification component 100 can also quantitatively place the waste gas into the secondary adsorption space after the primary adsorption;

[0038] A pressurizing quantitative mechanism 200 is provided at the top of the purification component 100. The pressurizing quantitative mechanism 200 is used to pressurize the gas inside the temperature regulating tube 104 and automatically control the discharge of the exhaust gas in the adsorption space during the pressurization process. The pressurizing quantitative mechanism 200 can also automatically complete the blocking of the water pipe 105 after pressurization.

[0039] As a preferred implementation in this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the inner wall of the driving box 201 is fixedly connected to the limiting plate 208, the top of the limiting plate 208 is fixedly connected to the limiting block 209, the L-shaped push frame 203 is slidably connected to the side of the limiting plate 208 close to the electric push rod 202, the top of the limiting block 209 is slidably connected to the lifting frame 206, the end of the lifting frame 206 close to the temperature regulating tube 104 is fixedly connected to the transmission block 205, the transmission block 205 can slide on the top of the trapezoidal lifting block 204, the top of the lifting frame 206 is fixedly connected to the transmission frame 211, the transmission frame 211 is slidably connected to the side of the driving box 201 close to the temperature regulating tube 104, the end of the transmission frame 211 close to the temperature regulating tube 104 is fixedly connected to the compression block 212, the compression block 21 2 is adapted to the inner diameter of the temperature regulating tube 104, the outer surface of the lifting frame 206 is fixedly connected with a mounting chassis 207, the top of the mounting chassis 207 is fixedly connected with a spring 210, the top of the spring 210 is fixedly connected to the bottom end of the limit block 209, the spring 210 is sleeved on the outer surface of the lifting frame 206, the end of the L-shaped push frame 203 away from the trapezoidal lifting block 204 is fixedly connected with a transmission plate 213, the transmission plate 213 is slidably connected to a side of the purification box 101 close to the driving box 201, the end of the transmission plate 213 away from the L-shaped push frame 203 is fixedly connected with a blocking plate 214, the blocking plate 214 is slidably connected to the inner wall of the purification box 101, and the blocking plate 214 is used to block the air guide port. The exhaust gas after the adsorption is quantitatively released through the movement of the blocking plate 214 to avoid local over-adsorption or insufficient adsorption on the surface of the activated carbon plate 111, and the mixing speed of the low-temperature water mist and the exhaust gas is accelerated by the compression block 212 using the air compression principle.

[0040] As a preferred implementation in this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 8As shown, a cooling cavity is provided inside the exhaust pipe 102, and the inner wall of the cooling cavity is fixedly connected with a cold air pipe 103, a cooling cavity is provided inside the temperature regulating pipe 104, and the cooling cavity is connected with the cooling cavity, and the inner wall of the cooling cavity is fixedly connected with one end of the cold air pipe 103 close to the water guide pipe 105, a lead-out hole is provided at the top of the temperature regulating pipe 104, and the lead-out hole is connected with the cooling cavity, an atomizing plate 106 is fixedly connected inside the temperature regulating pipe 104, an activated carbon plate 108 is fixedly connected to the inner wall of the purification box 101, an adjusting plate 109 is fixedly connected to the inner wall of the purification box 101, an air guide port is provided on the top of the adjusting plate 109, and the adjusting plate 109 is located above the activated carbon plate 108, a mounting plate 110 is fixedly connected to the inner wall of the purification box 101, an activated carbon plate 111 is fixedly connected inside the mounting plate 110, and the activated carbon plate 111 is directly opposite to the air guide port. The waste gas is humidified and cooled by the waste gas pipe 102, the cold air pipe 103 and the temperature regulating pipe 104, so as to reduce the dust content in the waste gas and reduce the thermal shock caused by the high temperature of the waste gas to the subsequent equipment.

[0041] In this embodiment, Figure 6 and Figure 7 As shown, the pressurized quantitative mechanism 200 includes a drive box 201, which is fixedly connected to one side of the purification box 101 close to the exhaust pipe 102. The drive box 201 is movably connected to an electric push rod 202 inside. The end of the piston rod inside the electric push rod 202 close to the purification box 101 is fixedly connected to an L-shaped push rack 203. The end of the L-shaped push rack 203 close to the temperature regulating tube 104 is fixedly connected to a trapezoidal lifting block 204. The bottom end of the trapezoidal lifting block 204 is slidably connected to the inner wall of the drive box 201.

[0042] Compared with the prior art, before purifying the exhaust gas, the cooled water forms low-temperature water mist under the atomization effect of the atomizing plate 106, and the low-temperature water mist is pressurized. Under the dual cooling effect of the low-temperature water mist and the inner wall of the exhaust pipe 102 cooled by the cooling chamber, the exhaust gas is humidified during the cooling process, thereby improving the adsorption efficiency of the activated carbon plate 108 and the activated carbon plate 2 111. By setting the adsorption area of ​​the activated carbon plate 2 111 to be smaller than the adsorption area of ​​the activated carbon plate 108 and quantitatively adding the exhaust gas after the first adsorption, the time that the exhaust gas stays in the secondary adsorption air is extended, thereby ensuring that the harmful substances in the exhaust gas have sufficient time to be adsorbed by the activated carbon plate 2 111, thereby improving the purification effect of the exhaust gas.

[0043] Working principle:

[0044] Initial limitation: Before using this device, the user needs to connect an external cold air source to the cold air pipe 103, and the cold air in the cold air source enters the interior of the cold air pipe 103, and the cold air enters the interior of the cooling chamber and the cooling chamber from the interior of the cold air pipe 103, and then the exhaust pipe 102 uses the cold air in the cooling chamber to cool the inner wall of the exhaust pipe 102, and at the same time, the cold air in the cooling chamber cools the inner wall of the temperature regulating pipe 104. The user needs to connect an external waste gas source to the waste gas pipe 102, and the waste gas in the waste gas source enters the interior of the waste gas pipe 102, and connect an external water source to the water pipe 105, and the water in the water source enters the interior of the water pipe 105, and the water in the water pipe 105 enters the interior of the temperature regulating pipe 104. At this time, the spring 210 is in a state of being compressed by the mounting chassis 207, and the spring 210 has been deformed;

[0045] Exhaust gas double cooling and quantitative delivery steps:

[0046] like Figure 6 As shown, at this time, the electric push rod 202 is in operation, and the piston rod inside the electric push rod 202 continues to move toward the blocking plate 214. In the process of moving toward the blocking plate 214, the piston rod inside the electric push rod 202 simultaneously drives the L-shaped push frame 203 to move toward the blocking plate 214, as shown in FIG. Figure 7As shown, the L-shaped push frame 203 synchronously drives the trapezoidal lifting block 204 to move toward the blocking plate 214 during the process of moving away from the blocking plate 214. Since the top of the trapezoidal lifting block 204 is partially inclined, and the transmission block 205 is slidably connected to the top of the limit block 209 through the lifting frame 206, the transmission block 205 can only perform lifting and lowering movements. Therefore, during the process of the trapezoidal lifting block 204 moving toward the blocking plate 214, the bottom end of the transmission block 205 synchronously loses the supporting force from the top inclined surface of the trapezoidal lifting block 204, and the transmission block 205 synchronously loses the supporting force while the lifting force is lost. The support frame 206 and the mounting chassis 207 lose their supporting force, and the spring 210 loses the compressive force from the mounting chassis 207, so that the spring 210 is no longer compressed by the mounting chassis 207, so that the mounting chassis 207 is pushed downward by the resilience of the spring 210. The mounting chassis 207 drives the lifting frame 206 to move downward in the process of descending, and the lifting frame 206 drives the transmission frame 211 to move downward in the process of moving downward, and the transmission frame 211 drives the compression block 212 to move downward in the process of moving downward. Since the radius of the compression block 212 is the same as that of the temperature regulating tube 1 04, so the air in the temperature regulating tube 104 is compressed by the air compression principle during the downward movement of the compression block 212. When the air in the temperature regulating tube 104 is compressed, the water in the temperature regulating tube 104 is pressurized. At this time, the water in the temperature regulating tube 104 is cooled by the cooled inner wall of the temperature regulating tube 104. At this time, the temperature of the water in the temperature regulating tube 104 is relatively low. After being compressed, the water in the temperature regulating tube 104 collides with the atomizing plate 106. At this time, the water is split into tiny particles by the atomizing plate 106, thereby converting the low-temperature water in the temperature regulating tube 104 into low-temperature water. Warm water mist and low-temperature water mist enter the interior of the exhaust pipe 102 to humidify the exhaust gas inside the exhaust pipe 102, thereby increasing the humidity of the exhaust gas, thereby reducing the dust content in the exhaust gas, and further reducing the blockage and pollution on the surface of the activated carbon plate 108, ensuring that the activated carbon plate 108 can normally adsorb the exhaust gas once, and in the process of increasing the humidity of the exhaust gas, the temperature of the exhaust gas is reduced by the dual cooling of the cooling chamber and the low-temperature water mist, the saturation rate of the activated carbon plate 108 is slowed down, and the thermal shock of the exhaust gas on the subsequent equipment due to the high temperature is reduced, thereby extending the service life of the equipment;

[0047] When the compression block 212 moves downward to the connection between the temperature regulating pipe 104 and the water pipe 105, the compression block 212 blocks the connection between the temperature regulating pipe 104 and the water pipe 105, thereby preventing the water in the water pipe 105 from entering the interior of the temperature regulating pipe 104, thereby preventing excessive water in the water pipe 105 from entering the interior of the temperature regulating pipe 104, thereby avoiding waste of water resources;

[0048] The waste gas after cooling enters the interior of the purification box 101. Since the gas enters the closed space and the top of the purification box 101 is connected to the outside air, the waste gas flows upward after entering the purification box 101. During the upward flow, the waste gas passes through the activated carbon plate 108 and utilizes the strong adsorption performance of the activated carbon to adsorb harmful gases such as organic vapor and hydrocarbons on the activated carbon, thereby achieving a primary adsorption of the waste gas. The waste gas after the primary adsorption flows upward to the space between the adjustment plate 109 and the activated carbon plate 108, as shown in FIG. Figure 3 As shown, the L-shaped push frame 203 synchronously drives the transmission plate 213 to move toward the activated carbon plate 111 during the process of moving toward the blocking plate 214, and the transmission plate 213 synchronously drives the blocking plate 214 to move toward the activated carbon plate 111 during the process of moving toward the activated carbon plate 111, thereby blocking the air guide port on the adjustment plate 109, and after the air guide port is blocked by the blocking plate 214, the electric push rod 202 begins to retract, and the L-shaped push frame 203 approaches the exhaust pipe 102 at this time, driving the blocking plate 214 to approach the exhaust pipe 102, and its principle is consistent with the above, thereby releasing the blocking of the air guide port by the blocking plate 214, and the exhaust gas between the adjustment plate 109 and the activated carbon plate 108 continues to flow upward, and the blocking of the air guide port is achieved by moving the blocking plate 214 in different directions. Blocking and opening, thereby controlling the flow of waste gas entering between the regulating plate 109 and the activated carbon plate 111, thereby achieving quantitative delivery of waste gas after primary adsorption, so that the delivered waste gas will not be squeezed by the waste gas between the regulating plate 109 and the activated carbon plate 108, thereby reducing the speed of the delivered waste gas passing through the activated carbon plate 111, avoiding local over-adsorption or insufficient adsorption on the surface of the activated carbon plate 111, and at the same time, the adsorption area of ​​the activated carbon plate 111 is smaller than that of the activated carbon plate 108 to extend the time that the waste gas stays in the secondary adsorption air, thereby ensuring that the harmful substances in the waste gas have sufficient time to be adsorbed by the activated carbon plate 111, thereby improving the purification effect of the waste gas, and finally the waste gas is discharged from the outlet pipe 107 at the top of the purification box 101;

[0049] The electric push rod 202 synchronously lifts the transmission block 205 during the contraction movement, causing the compression block 212 to move upward. The transmission principle is consistent with the above, causing the compression block 212 to use the negative pressure principle to suck the water inside the water pipe 105 into the interior of the temperature regulating tube 104 during the upward movement. The compression block 212 uses the negative pressure principle to control the water in the temperature regulating tube 104 to be in a negative pressure state, and the water is cooled by the temperature of the inner wall of the temperature regulating tube 104. The cold air that has cooled the inner wall of the temperature regulating tube 104 is discharged from the outlet hole at the top of the temperature regulating tube 104, thereby completing the air flow in the cooling chamber and the cooling chamber.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A waste gas purification device for a naphthalene-based phthalic anhydride production device, characterized in that: The purification component (100) comprises a purification box (101), the top of the purification box (101) being fixedly connected to a guide pipe (107), one side of the purification box (101) being fixedly connected to an exhaust pipe (102), the outer surface of the exhaust pipe (102) being fixedly connected to a temperature regulating pipe (104), the outer surface of the temperature regulating pipe (104) being fixedly connected to a water guide pipe (105), and the top of the purification component (100) being provided with a pressurizing quantitative mechanism (200); The purification component (100) is used to cool and humidify the waste gas before purifying the waste gas. The purification component (100) can also quantitatively place the waste gas into the secondary adsorption space after the primary adsorption. The pressurizing quantitative mechanism (200) is used to pressurize the gas inside the temperature regulating tube (104) and automatically control the discharge of waste gas in the primary adsorption space during the pressurization process. The pressurizing quantitative mechanism (200) can also automatically complete the blocking of the water pipe (105) after pressurization. A cooling cavity is provided inside the exhaust pipe (102), the inner wall of the cooling cavity is fixedly connected to a cold air pipe (103), a cooling cavity is provided inside the temperature regulating pipe (104), the inner wall of the cooling cavity is fixedly connected to one end of the cold air pipe (103) close to the water pipe (105), and an atomizing plate (106) is fixedly connected inside the temperature regulating pipe (104); An activated carbon plate 1 (108) is fixedly connected to the inner wall of the purification box (101), an adjustment plate (109) is fixedly connected to the inner wall of the purification box (101), an air guide port is provided at the top of the adjustment plate (109), the adjustment plate (109) is located above the activated carbon plate 1 (108), a mounting plate (110) is fixedly connected to the inner wall of the purification box (101), an activated carbon plate 2 (111) is fixedly connected inside the mounting plate (110), and the activated carbon plate 2 (111) and the air guide port are opposite to each other; The pressurized quantitative mechanism (200) comprises a drive box (201), the drive box (201) being fixedly connected to a side of the purification box (101) close to the exhaust pipe (102), the drive box (201) being movably connected to an electric push rod (202) inside, the piston rod inside the electric push rod (202) being fixedly connected to an L-shaped push frame (203) at one end close to the purification box (101), the L-shaped push frame (203) being fixedly connected to an end close to the temperature regulating tube (104), the bottom end of the trapezoidal lift block (204) being slidably connected to the inner wall of the drive box (201); The inner wall of the driving box (201) is fixedly connected to a limit plate (208), the top of the limit plate (208) is fixedly connected to a limit block (209), the L-shaped push frame (203) is slidably connected to a side of the limit plate (208) close to the electric push rod (202), the top of the limit block (209) is slidably connected to a lifting frame (206), and one end of the lifting frame (206) close to the temperature regulating tube (104) is fixedly connected to a transmission block (205), and the transmission block (205) can slide on the top of the trapezoidal lifting block (204); The top end of the lifting frame (206) is fixedly connected to a transmission frame (211), the transmission frame (211) is slidably connected to a side of the drive box (201) close to the temperature regulating tube (104), and one end of the transmission frame (211) close to the temperature regulating tube (104) is fixedly connected to a compression block (212), the radius of the compression block (212) being compatible with the inner diameter of the temperature regulating tube (104); The outer surface of the jacking frame (206) is fixedly connected to a mounting chassis (207), the top end of the mounting chassis (207) is fixedly connected to a spring (210), the top end of the spring (210) is fixedly connected to the bottom end of the limit block (209), and the spring (210) is sleeved on the outer surface of the jacking frame (206); One end of the L-shaped push frame (203) away from the trapezoidal lifting block (204) is fixedly connected to a transmission plate (213), and the transmission plate (213) is slidably connected to a side of the purification box (101) close to the driving box (201), and one end of the transmission plate (213) away from the L-shaped push frame (203) is fixedly connected to a blocking plate (214), and the blocking plate (214) is slidably connected to the inner wall of the purification box (101).

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