A waste gas treatment device for pesticide production

Abstract

The present invention relates to the technical field of pesticide production, and discloses a waste gas treatment device for pesticide production, comprising a driven spray mechanism and a plurality of elastic pressure reducing mechanisms, wherein a valve plate installed inside a hollow rod structure and capable of blocking the longitudinally flowing liquid and a spiral spring for producing an elastic damping effect on the downward movement of the valve plate are arranged inside the waste gas treatment device for pesticide production. The atomizing nozzle is arranged along the circumferential surface of the rod-shaped structure, thereby reducing the space occupied by the upward flow of the waste gas, thereby improving the efficiency of waste gas treatment, and at the same time, the liquid output pressure received by the atomizing nozzles in the same vertical direction from low to high is in an increasing state, therefore, the effective atomization range formed by the atomizing nozzles from low to high will gradually expand toward the periphery, and finally can completely cover the upward flow area of ​​the waste gas, so that the waste gas can react with the reaction liquid in the maximum range, thereby improving the effective treatment effect of the waste gas.

Description

Technical Field

[0001] The invention relates to the technical field of pesticide production, in particular to a waste gas treatment device for pesticide production. Background Art

[0002] Pesticides refer to chemical agents used in agriculture to prevent and control pests and diseases and regulate plant growth. They are widely used in agricultural, forestry and animal husbandry production, environmental and household hygiene pest control and epidemic prevention, industrial product mildew and moth prevention, etc. There are many varieties of pesticides. According to their uses, they can be mainly divided into insecticides, acaricides, rodenticides, nematicides, molluscicides, fungicides, herbicides, plant growth regulators, etc.; according to the source of raw materials, they can be divided into mineral pesticides (inorganic pesticides), biopesticides (natural organic matter, microorganisms, antibiotics, etc.) and chemical synthetic pesticides. In the process of pesticide processing and production, polluting waste gas will be generated, which is easy to cause pollution if it is directly discharged into the air. The spray circulation method is a relatively economical and simple waste gas treatment method. According to the flow direction of gas and liquid in the spray tower, it can be divided into three forms: downstream, countercurrent and cross-current. The most commonly used is the countercurrent spray method. The acidic components in the waste gas are neutralized by circulating alkali solution, and the purified gas passes through the demisting layer to remove the droplets brought out by the gas.

[0003] For example, the Chinese patent with the publication number "CN112844027B" discloses "a waste gas treatment device for pesticide production", whose main structure includes a main spray tower body, an external water pipe, a driving motor, a first electrically controlled hydraulic telescopic machine and a second electrically controlled hydraulic telescopic machine. The waste gas treatment device for pesticide production is symmetrically provided with an arc-shaped storage groove with a built-in arc-shaped cover plate on the inner wall of the main spray tower body. The arc-shaped cover plate is connected to the arc-shaped storage groove through a hollow scissor-type multi-link. The expansion and contraction are controlled by an electrically controlled hydraulic telescopic machine, thereby changing the structure of the spray device, and then changing the spraying mode, so that the spraying mode and range can be changed as needed to improve the spraying effect; the counterflow fan is controlled by the driving motor to rotate, so that it forms a reverse circulation flow channel at the spraying position, and the internal waste gas is repeatedly sprayed in a cycle, thereby increasing the neutralization time and making it more fully reactive; the spraying angle and range are adjustable, and the operation is simple and convenient.

[0004] From the above description, we can know that the reaction liquid is sprayed downward through the spray head, and in order to increase the effective spraying range, the device adopts a large area of ​​spray heads at the same height. When the spray head sprays atomized particulate liquid, the plane setting will cause the upward flow of the exhaust gas to be hindered, resulting in a reduction in the space for the exhaust gas to flow, thus leading to the disadvantage of low exhaust gas treatment efficiency. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a waste gas treatment device for pesticide production, so that the atomizing nozzle is arranged along the circumferential surface of the rod-shaped structure, thereby reducing the space occupied by the upward flow of waste gas, thereby improving the efficiency of waste gas treatment, and at the same time, the liquid output pressure received by the atomizing nozzles in the same vertical direction increases from low to high. Therefore, the effective atomization range formed by the atomizing nozzles from low to high will gradually expand toward the periphery, and finally be able to completely cover the upward flow area of ​​the waste gas, so that the waste gas can react with the reaction liquid in the maximum range, thereby improving the effective treatment effect of the waste gas, and solving the above-mentioned technical problems.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a waste gas treatment device for pesticide production, comprising a vertical cylinder with a bottom fixed end at the bottom, a reaction cavity arranged inside the vertical cylinder and opened at the top, a baffle structure arranged at the bottom of the reaction cavity, a waste gas flow cavity arranged inside the bottom fixed end and opened at the bottom, a plurality of waste gas flow ports arranged in the baffle structure and used to connect the waste gas flow cavity and the reaction cavity, a plurality of pipeline fixing holes arranged on the top circumferential surface of the vertical cylinder, and a waste liquid discharge channel arranged on the bottom circumferential surface of the vertical cylinder and connected to the reaction cavity, and also comprising a driven spray mechanism, which The interior is provided with a turbine mounting shell which is fixedly mounted at the top center of the reaction cavity and can transmit the liquid flow required for the reaction exhaust gas, a rotating wing which is located inside the turbine mounting shell and can rotate under the action of the liquid, a hollow rod structure which extends into the bottom space of the reaction cavity and can rotate with the rotating wing, and an atomizing nozzle which is mounted on the circumferential side of the hollow rod structure and can spray the liquid in an atomized state to the surroundings; and a plurality of elastic decompression mechanisms, inside which are provided a valve plate which is mounted inside the hollow rod structure and can have a blocking effect on the longitudinally flowing liquid, and a spiral spring which produces an elastic damping effect on the downward movement of the valve plate.

[0007] Preferably, the driven spray mechanism includes a turbine mounting shell, the circumferential side of the turbine mounting shell is provided with a plurality of liquid injection channels which are an integral structure with the turbine mounting shell and are through-mounted in the pipeline fixing hole, the interior of the turbine mounting shell is provided with a turbine mounting cavity, the turbine mounting shell is provided with a liquid reserved cavity at the bottom end of the turbine mounting cavity, the upper and lower end centers of the turbine mounting shell are provided with shaft mounting holes, the turbine mounting shell is provided with a longitudinal rotating shaft installed in the two shaft mounting holes through a mechanical sealing structure, the longitudinal rotating shaft is fixed on the periphery of the shaft body located in the turbine mounting cavity A rotating wing is fixedly installed, and a hollow rod structure which is an integral structure with the longitudinal rotating shaft and extends into the bottom space of the reaction cavity is arranged at the bottom end of the longitudinal rotating shaft, and a plurality of liquid injection cavities are arranged in an array from top to bottom inside the hollow rod structure, and a component installation cavity is arranged at a position between every two liquid injection cavities of the hollow rod structure, and a plurality of injection channels which are arranged in an annular array and connected to the component installation cavities are arranged on the circumferential side of the hollow rod structure, and an atomizing nozzle is respectively installed inside each of the injection channels, and a liquid guide hole for connecting the liquid reserved cavity and the liquid injection cavity is arranged inside the longitudinal rotating shaft.

[0008] Preferably, the discharge port of the liquid injection channel intersects with the circumferential surface of the turbine mounting cavity in a tangential manner.

[0009] Preferably, the structural radius of the longitudinal rotating shaft is smaller than the structural radius of the liquid reserved cavity, and the structural radius of the liquid reserved cavity is smaller than the structural radius of the turbine installation cavity.

[0010] Preferably, the elastic pressure reducing mechanism comprises a longitudinal hollow shell fixedly mounted inside the component mounting cavity, a component movable cavity is arranged inside the longitudinal hollow shell, an upper liquid flow hole connecting its upper end surface and the component movable cavity is arranged at the top end of the longitudinal hollow shell, a lower liquid flow hole connecting its lower end surface and the component movable cavity is arranged at the bottom end of the longitudinal hollow shell, a valve plate capable of axially moving along the component movable cavity is arranged inside the component movable cavity of the longitudinal hollow shell, a plurality of liquid flow grooves arranged in an annular array and used for longitudinal flow of liquid are arranged on the circumferential side surface of the valve plate, and a coil spring in a compressed state is arranged below the valve plate in the longitudinal hollow shell.

[0011] Preferably, the distance between the liquid flow groove and the axial center line of the valve plate is greater than the structural radius of the upper liquid flow hole.

[0012] Preferably, it also includes a plurality of liquid atomization mechanisms, which are internally provided with a conical hood which is fixedly mounted on the top port of the exhaust gas flow port and can enable the exhaust gas to flow at its center, and an oblique liquid flow hole which is arranged on the outer inclined surface of the conical hood and can drive the waste liquid at the bottom upward under the influence of the airflow, thereby producing an atomization phenomenon with the high-speed flowing gas ejected upward through the conical hood.

[0013] Preferably, the liquid atomization mechanism includes a conical hood, the bottom circumferential surface of the conical hood is provided with an annular fixing plate structure which is an integral structure with the conical hood and fixedly mounted on the upper end surface of the partition structure, the conical hood is a conical structure with a lower diameter larger than its upper diameter, and the interior of the conical hood is provided with a conical cavity with a lower diameter larger than its upper diameter, the top end of the conical cavity is connected to the upper space, the bottom end of the conical cavity corresponds to a top port connected to the exhaust gas flow port, the outer inclined surface of the conical hood is provided with a plurality of liquid oblique channels which are an integral structure with the conical hood, and the interior of the liquid oblique channels is provided with liquid oblique flow holes which are both open at the bottom and the top.

[0014] Preferably, the top end of the liquid oblique flow hole is flush with the top opening end of the conical cavity, and the bottom end of the liquid oblique flow hole is higher than the upper end surface of the annular fixing plate structure.

[0015] Preferably, the level of the waste liquid discharge channel is between the bottom opening end of the liquid oblique flow hole and the top opening end of the liquid oblique flow hole.

[0016] Compared with the prior art, the present invention provides a waste gas treatment device for pesticide production, which has the following beneficial effects:

[0017] The waste gas treatment device for pesticide production,

[0018] 1. The atomizing nozzle is arranged along the circumferential surface of the rod-shaped structure, thereby reducing the space occupied by the upward flow of exhaust gas, thereby improving the efficiency of exhaust gas treatment. At the same time, the liquid output pressure of the atomizing nozzles in the same vertical direction increases from low to high. Therefore, the effective atomization range formed by the atomizing nozzles from low to high will gradually expand toward the periphery, and finally completely cover the upward flow area of ​​the exhaust gas, so that the exhaust gas can react with the reaction liquid in the largest range, thereby improving the effective treatment effect of the exhaust gas;

[0019] 2. By setting up a driven spray mechanism, the atomized liquid particles bend downward under the action of gravity and mix with the upward exhaust gas, and a reaction occurs between the two, thereby performing necessary treatment on the exhaust gas. At the same time, the atomizing nozzle rotates, and when rotating, the atomized liquid particles will produce a spiral downward motion state, thereby utilizing the driving force of the liquid to discharge the atomized particle-shaped reaction liquid when rotating, thereby increasing the distribution range of the atomized liquid particles and thus improving the exhaust gas purification effect;

[0020] 3. By setting up an elastic pressure reducing mechanism, the liquid pressure inside the upper liquid injection cavity will be greater than the liquid pressure inside the lower liquid injection cavity, and the size of the liquid pressure will directly affect the effective injection range of the atomizing nozzle. The greater the pressure, the farther the effective injection range of the atomizing nozzle will be, and vice versa, the closer it will be, so that the liquid output pressure of the atomizing nozzles in the same vertical direction will increase from low to high, so that the effective range of atomization will gradually expand to the periphery, and finally it will be able to completely cover the upward flow area of ​​the exhaust gas, so that the exhaust gas can react with the reaction liquid to the maximum extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A perspective view of the present invention;

[0022] Figure 2 is a three-dimensional cross-sectional view of the present invention;

[0023] Figure 3 It is a vertical sectional view of the driven spray mechanism of the present invention;

[0024] Figure 4 It is a three-dimensional cross-sectional view of the driven spray mechanism in the present invention in the horizontal direction;

[0025] Figure 5 is a three-dimensional cross-sectional view of the elastic pressure relief mechanism of the present invention;

[0026] Figure 6 It is a three-dimensional exploded view of the elastic pressure relief mechanism of the present invention;

[0027] Figure 7 is a three-dimensional cross-sectional view of the liquid atomization mechanism of the present invention;

[0028] Figure 8 It is a cross-sectional schematic diagram of the liquid atomization mechanism in the present invention.

[0029] Among them: 1. vertical cylinder; 2. bottom fixed end; 3. reaction cavity; 4. partition structure; 5. exhaust gas flow cavity; 6. exhaust gas flow port; 7. pipeline fixing hole; 8. waste liquid discharge channel; 9. driven spray mechanism; 91. turbine mounting shell; 92. turbine mounting cavity; 93. liquid injection channel; 94. liquid reserved cavity; 95. shaft mounting hole; 96. longitudinal rotating shaft; 97. rotating wing; 98. hollow rod structure; 99. liquid injection cavity; 910. component mounting cavity; 911. Liquid guide hole; 912. Injection channel; 913. Atomizing nozzle; 10. Elastic pressure reducing mechanism; 101. Longitudinal hollow shell; 102. Component movable cavity; 103. Upper liquid flow hole; 104. Lower liquid flow hole; 105. Valve plate; 106. Liquid flow groove; 107. Helical spring; 11. Liquid atomizing mechanism; 111. Conical cover; 112. Annular fixed plate structure; 113. Conical cavity; 114. Liquid oblique channel; 115. Liquid oblique flow hole. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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 creative work are within the scope of protection of the present invention.

[0031] See also Figure 1 and Figure 2 A waste gas treatment device for pesticide production includes a vertical cylinder 1 with a bottom fixed end 2 at the bottom, a reaction cavity 3 arranged inside the vertical cylinder 1 and opened at the top, a partition structure 4 arranged at the bottom end of the reaction cavity 3, a waste gas flow cavity 5 arranged inside the bottom fixed end 2 and opened at the bottom, a plurality of waste gas flow ports 6 arranged in the partition structure 4 and used to connect the waste gas flow cavity 5 and the reaction cavity 3, a plurality of pipeline fixing holes 7 arranged on the top circumferential surface of the vertical cylinder 1, and a waste liquid discharge channel 8 arranged on the bottom circumferential surface of the vertical cylinder 1 and connected to the reaction cavity 3. The bottom fixed end 2 is connected to the exhaust port of the waste gas discharge pipe. At the same time, when the waste gas is discharged, it needs to be discharged by a blower to accelerate the discharge, and then the waste liquid discharge channel 8 is connected to the waste liquid reflux pipeline, and finally the liquid inlet port of the liquid injection channel 93 is connected to a pipeline for discharging waste gas reaction liquid.

[0032] In order to utilize the driving force of the liquid to discharge the atomized particle reaction liquid while the liquid rotates, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4, it is necessary to set up a driven spray mechanism 9, which is provided with a turbine mounting shell 91 fixedly mounted at the top center of the reaction cavity 3 and capable of transmitting the liquid flow required for the reaction exhaust gas, a rotating wing 97 located inside the turbine mounting shell 91 and capable of rotating under the force of the liquid, a hollow rod structure 98 extending into the bottom space of the reaction cavity 3 and capable of rotating with the rotating wing 97, and an atomizing nozzle 913 installed on the circumferential side of the hollow rod structure 98 and capable of spraying the liquid in an atomized state to the surroundings. When the flowing liquid enters the liquid injection channel 93, it will finally flow into the interior of the turbine mounting cavity 92 along the tangent of the circumferential surface of the turbine mounting cavity 92, generate a force on one side of the rotating wing 97, break the rotation of the rotating wing 97, and at the same time, the liquid will continue to enter the interior of the liquid reserved cavity 94, and then pass through The liquid guide hole 911 flows into each liquid injection cavity 99, and finally the reaction liquid is sprayed to the surrounding in the form of atomized particles through the atomizing nozzle 913. The atomized liquid particles bend downward under the action of gravity and mix with the upward exhaust gas, and the two react to perform necessary treatment on the exhaust gas. At the same time, the longitudinally arranged atomizing nozzle 913 occupies less flow space for the exhaust gas, thereby improving the efficiency of exhaust gas treatment. At the same time, the rotating wing 97 will drive the longitudinal rotating shaft 96 to rotate, and then drive each atomizing nozzle 913 to rotate. When rotating, the atomized liquid particles will produce a spiral downward motion state, thereby utilizing the driving force of the liquid to enable the liquid to discharge the atomized granular reaction liquid when rotating, thereby increasing the distribution range of the atomized liquid particles, and thereby improving the effect of exhaust gas purification.

[0033] For the specific structure of the driven spray mechanism 9, please refer to Figure 3 and Figure 4, including a turbine mounting shell 91, the circumferential side surface of the turbine mounting shell 91 is provided with a plurality of liquid injection channels 93 which are an integral structure with the turbine mounting shell 91 and are through-mounted in the pipeline fixing hole 7, the interior of the turbine mounting shell 91 is provided with a turbine mounting cavity 92, in order to improve the effective utilization rate of the liquid kinetic energy, it is necessary to make the discharge port of the liquid injection channel 93 intersect with the circumferential surface of the turbine mounting cavity 92 in a tangential manner, the turbine mounting shell 91 is provided with a liquid reserved cavity 94 at the bottom end of the turbine mounting cavity 92, the upper and lower ends of the turbine mounting shell 91 are provided with shaft mounting holes 95 at the center, the turbine mounting shell 91 is provided with a longitudinal rotating shaft 96 in the two shaft mounting holes 95 through a mechanical sealing structure, in order to achieve the normal flow of the liquid, it is necessary to make the structural radius of the longitudinal rotating shaft 96 smaller than the structural radius of the liquid reserved cavity 94, the The structural radius of the liquid reserved cavity 94 is smaller than the structural radius of the turbine installation cavity 92. The longitudinal rotating shaft 96 is fixedly installed with a rotating wing 97 on the periphery of the shaft body located in the turbine installation cavity 92. The bottom end of the longitudinal rotating shaft 96 is provided with a hollow rod structure 98 which is an integral structure with the longitudinal rotating shaft 96 and extends into the bottom space of the reaction cavity 3. The interior of the hollow rod structure 98 has a plurality of liquid injection cavities 99 arranged in an array from top to bottom. The hollow rod structure 98 is provided with a component installation cavity 910 at a position located between every two liquid injection cavities 99. The circumferential side of the hollow rod structure 98 is provided with a plurality of injection channels 912 in an annular array and connected to the component installation cavity 910. An atomizing nozzle 913 is installed in each of the injection channels 912. The interior of the longitudinal rotating shaft 96 is provided with a liquid guide hole 911 for connecting the liquid reserved cavity 94 and the liquid injection cavity 99.

[0034] In order to make the liquid output pressure of the atomizing nozzle 913 in the same vertical direction increase from low to high, so that the effective range of atomization will gradually expand to the periphery, please refer to Figure 1 , Figure 2 , Figure 5 and Figure 6, it is necessary to set up a plurality of elastic pressure reducing mechanisms 10, which are provided with a valve plate 105 installed inside the hollow rod structure 98 and capable of blocking the longitudinally flowing liquid, and a coil spring 107 that produces an elastic damping effect on the downward movement of the valve plate 105. When the reaction liquid flows downward, it will first pass through the valve plate 105. When the liquid exerts pressure on the upper end surface of the valve plate 105, it will be transmitted to the coil spring 107. When the force of the liquid is greater than the elastic strength of the coil spring 107, the valve plate 105 moves downward, and the liquid will flow downward along the gap near the valve plate 105 and the liquid flow groove 106, and then pass through the lower liquid flow hole 10 4 flows to the next liquid injection cavity 99, therefore, the liquid pressure inside the upper liquid injection cavity 99 will be greater than the liquid pressure inside the lower liquid injection cavity 99, and the magnitude of the liquid pressure will directly affect the effective injection range of the atomizing nozzle 913. The greater the pressure, the farther the effective injection range of the atomizing nozzle 913 will be, and vice versa, the closer it will be, so that the liquid output pressure of the atomizing nozzle 913 in the same vertical direction from low to high will increase, so that the effective atomization range will gradually expand to the periphery, and finally can completely cover the upward flow area of ​​the exhaust gas, so that the exhaust gas can react with the reaction liquid in the largest range.

[0035] For the specific structure of the elastic pressure relief mechanism 10, please refer to Figure 5 and Figure 6 , comprising a longitudinal hollow shell 101 fixedly mounted inside the component mounting cavity 910, wherein the interior of the longitudinal hollow shell 101 is provided with a component movable cavity 102, wherein the top of the longitudinal hollow shell 101 is provided with an upper liquid flow hole 103 connecting its upper end surface and the component movable cavity 102, and the bottom of the longitudinal hollow shell 101 is provided with a lower liquid flow hole 104 connecting its lower end surface and the component movable cavity 102, wherein the longitudinal hollow shell 101 is fixedly mounted inside the component movable cavity 102, wherein the longitudinal hollow shell 101 is provided with a lower liquid flow hole 104 connecting its lower end surface and the component movable cavity 102, wherein the longitudinal hollow shell 101 is provided with a lower liquid flow hole 103 connecting its lower end surface and the component movable cavity 102, wherein the longitudinal hollow shell 101 is provided with a lower liquid flow hole 104 ... A valve plate 105 capable of axially moving along the active cavity 102 of the component is provided, and a plurality of liquid flow grooves 106 arranged in an annular array and used for the longitudinal flow of liquid are provided on the circumferential side of the valve plate 105. In order to realize the flow control function of the liquid, it is necessary to make the distance between the liquid flow groove 106 and the axial line of the valve plate 105 larger than the structural radius of the upper liquid flow hole 103. A coil spring 107 in a compressed state is placed in the longitudinal hollow shell 101 below the valve plate 105.

[0036] In order to reuse the waste gas reaction liquid and improve the effective utilization rate of the waste gas reaction liquid, please refer to Figure 1 , Figure 2 , Figure 7 and Figure 8, it is necessary to set up a plurality of liquid atomization mechanisms 11, which are provided with a conical cover 111 fixedly mounted on the top port of the exhaust gas flow port 6 and capable of realizing the flow of exhaust gas at its center, and an outer inclined surface provided on the conical cover 111 and capable of driving the waste liquid at the bottom upward under the influence of the airflow, and then generating a liquid oblique flow hole 115 for atomizing the waste liquid with the high-speed flowing gas ejected upward through the conical cover 111. After the exhaust gas is accelerated, it enters the conical cavity 113 and finally flows upward at a high speed through the top port of the conical cavity 113. In gas fluid mechanics, the high-speed flowing gas will reduce the nearby air pressure, so that the exhaust gas reaction liquid at the bottom of the liquid oblique flow hole 115 can be driven upward under the action of the negative pressure, and finally mixed with the high-speed flowing gas at the top of the conical cavity 113, and will be blown away by the air pressure to form an atomized state, so that the exhaust gas reaction liquid can be used again, thereby improving the effective utilization rate of the exhaust gas reaction liquid.

[0037] For the specific structure of the liquid atomization mechanism 11, please refer to Figure 7 and Figure 8 , including a conical cover 111, the bottom circumferential surface of the conical cover 111 is provided with an annular fixing plate structure 112 which is an integral structure with the conical cover 111 and fixedly mounted on the upper end surface of the partition structure 4, the conical cover 111 is a conical structure with a lower diameter larger than its upper diameter, and the interior of the conical cover 111 is provided with a conical cavity 113 with a lower diameter larger than its upper diameter, the top of the conical cavity 113 is connected to the upper space, and the bottom end of the conical cavity 113 is correspondingly connected to a top port of the exhaust gas flow port 6, and the outer inclined surface of the conical cover 111 is provided with a plurality of liquids which are an integral structure with the conical cover 111 The liquid oblique channel 114 has an oblique liquid flow hole 115 with both the bottom and the top being open. In order to make better use of the flowing gas, it is necessary to make the top of the oblique liquid flow hole 115 flush with the top open end of the conical cavity 113, and the bottom end of the oblique liquid flow hole 115 is higher than the upper end surface of the annular fixed plate structure 112. In order to have an appropriate amount of reaction liquid, it is necessary to make the horizontal height of the waste liquid discharge channel 8 between the bottom open end of the liquid oblique flow hole 115 and the top open end of the liquid oblique flow hole 115.

[0038] The specific working principle of the present invention is to connect the bottom fixed end 2 with the exhaust port of the exhaust gas discharge pipe. At the same time, when the exhaust gas is discharged, it needs to be discharged by a blower to accelerate the discharge, and then connect the waste liquid discharge channel 8 with the waste liquid return pipe, and finally connect the liquid inlet port of the liquid injection channel 93 with a pipe for discharging the exhaust gas reaction liquid;

[0039] Turn on the blower and the device for discharging the exhaust gas reaction liquid. When the flowing liquid enters the liquid injection channel 93, it will finally flow into the turbine installation cavity 92 along the tangent line of the circumferential surface of the turbine installation cavity 92, and exert force on one side of the rotating wing 97 to break the rotating wing 97. At the same time, the liquid will continue to enter the liquid reserved cavity 94, and then flow into each liquid injection cavity 99 through the liquid guide hole 911. Finally, the reaction liquid is sprayed to the surrounding in the form of atomized particles through the atomizing nozzle 913. The atomized liquid particles are Under the action of gravity, it bends downward and mixes with the upward exhaust gas, and a reaction occurs between the two, thereby performing necessary treatment on the exhaust gas. At the same time, the longitudinally arranged atomizing nozzle 913 occupies less flow space for the exhaust gas, thereby improving the efficiency of exhaust gas treatment. At the same time, the rotating wing 97 drives the longitudinal rotating shaft 96 to rotate, thereby driving each atomizing nozzle 913 to rotate. When rotating, the atomized liquid particles will produce a spiral downward motion state, thereby utilizing the driving force of the liquid to enable the liquid to discharge the atomized particle-shaped reaction liquid when rotating;

[0040] The waste gas is finally discharged upward, and the reacted liquid falls on the top of the partition structure 4 under the action of gravity. Finally, part of the waste liquid is discharged to the outside through the waste liquid discharge channel 8;

[0041] At the same time, after being accelerated, the exhaust gas enters the conical cavity 113, and finally flows upward at high speed through the top port of the conical cavity 113. In gas fluid mechanics, the high-speed flowing gas will reduce the nearby air pressure, so that the exhaust gas reaction liquid at the bottom of the liquid oblique flow hole 115 can be driven upward under the action of the negative pressure, and finally mixed with the high-speed flowing gas at the top of the conical cavity 113, and will be blown away by the air pressure to form an atomized state, and react with the exhaust gas again.

[0042] 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 treatment device for pesticide production, comprising a vertical cylinder (1) with a bottom fixed end (2) at the bottom, a reaction cavity (3) arranged inside the vertical cylinder (1) and open at the top, a baffle structure (4) arranged at the bottom of the reaction cavity (3), a waste gas flow cavity (5) arranged inside the bottom fixed end (2) and open at the bottom, a plurality of waste gas flow ports (6) arranged in the baffle structure (4) and used to connect the waste gas flow cavity (5) and the reaction cavity (3), a plurality of pipe fixing holes (7) arranged on the top circumferential surface of the vertical cylinder (1), and a waste liquid discharge channel (8) arranged on the bottom circumferential surface of the vertical cylinder (1) and connected to the reaction cavity (3), characterized in that: Also includes, A driven spray mechanism (9) is provided with a turbine mounting housing (91) fixedly mounted at the top center of the reaction cavity (3) and capable of transmitting the flow of liquid required for the reaction exhaust gas, a rotating wing (97) located inside the turbine mounting housing (91) and capable of rotating under the force of the liquid, a hollow rod structure (98) extending into the bottom space of the reaction cavity (3) and capable of rotating with the rotating wing (97), and an atomizing nozzle (913) mounted on the circumferential side of the hollow rod structure (98) and capable of spraying liquid in an atomized state toward the surroundings; and a plurality of elastic pressure reducing mechanisms (10), the interior of which is provided with a valve plate (105) installed inside the hollow rod structure (98) and capable of blocking the longitudinally flowing liquid, and a coil spring (107) for generating an elastic damping effect on the downward movement of the valve plate (105); The driven spray mechanism (9) comprises a turbine mounting shell (91), a circumferential side surface of the turbine mounting shell (91) is provided with a plurality of liquid injection channels (93) which are integrally structured with the turbine mounting shell (91) and are through-mounted in the pipeline fixing hole (7), a turbine mounting cavity (92) is arranged inside the turbine mounting shell (91), a liquid reserved cavity (94) is arranged at the bottom end of the turbine mounting cavity (92), shaft mounting holes (95) are arranged at the center of the upper and lower ends of the turbine mounting shell (91), a longitudinal rotating shaft (96) is installed in the two shaft mounting holes (95) of the turbine mounting shell (91) through a mechanical sealing structure, the longitudinal rotating shaft (96) is fixedly mounted with rotating wings (97) on the outer periphery of the shaft body located in the turbine mounting cavity (92), and the bottom end of the longitudinal rotating shaft (96) is provided with a A hollow rod structure (98) is provided which is an integral structure with the longitudinal rotating shaft (96) and extends into the bottom space of the reaction cavity (3); a plurality of liquid injection cavities (99) are arranged in an array from top to bottom inside the hollow rod structure (98); a component mounting cavity (910) is provided at a position between every two liquid injection cavities (99) on the hollow rod structure (98); a plurality of injection channels (912) in an annular array and connected to the component mounting cavities (910) are provided on the circumferential side surface of the hollow rod structure (98); an atomizing nozzle (913) is installed inside each of the injection channels (912); a liquid guide hole (911) for connecting the liquid reserved cavity (94) and the liquid injection cavity (99) is provided inside the longitudinal rotating shaft (96); and a liquid discharge port of the liquid injection channel (93) intersects with the circumferential surface of the turbine mounting cavity (92) in a tangential manner.

2. The waste gas treatment device for pesticide production according to claim 1, characterized in that: The structural radius of the longitudinal rotating shaft (96) is smaller than the structural radius of the liquid reserved cavity (94), and the structural radius of the liquid reserved cavity (94) is smaller than the structural radius of the turbine installation cavity (92).

3. The waste gas treatment device for pesticide production according to claim 2, characterized in that: The elastic pressure reducing mechanism (10) comprises a longitudinal hollow shell (101) fixedly mounted inside a component mounting cavity (910); a component movable cavity (102) is arranged inside the longitudinal hollow shell (101); an upper liquid flow hole (103) connecting its upper end surface and the component movable cavity (102) is arranged at the top of the longitudinal hollow shell (101); and a lower liquid flow hole (103) connecting its lower end surface and the component movable cavity (102) is arranged at the lower end of the longitudinal hollow shell (101). The longitudinal hollow shell (101) is provided with a valve plate (105) capable of axially moving along the component movable cavity (102), and the circumferential side surface of the valve plate (105) is provided with a plurality of liquid flow grooves (106) arranged in an annular array and used for the longitudinal flow of liquid. The longitudinal hollow shell (101) is provided with a helical spring (107) in a compressed state below the valve plate (105).

4. The waste gas treatment device for pesticide production according to claim 3, characterized in that: The distance between the liquid flow groove (106) and the axial center line of the valve plate (105) is greater than the structural radius of the upper liquid flow hole (103).

5. A waste gas treatment device for pesticide production according to any one of claims 1 to 4, characterized in that: It also includes a plurality of liquid atomization mechanisms (11), the interior of which is provided with a conical cover (111) fixedly mounted on the top port of the exhaust gas flow port (6) and capable of achieving exhaust gas flow at its center, and a liquid oblique flow hole (115) provided on the outer inclined surface of the conical cover (111) and capable of driving the waste liquid at the bottom upward under the influence of the airflow, thereby generating an atomization phenomenon with the high-speed flowing gas ejected upward through the conical cover (111).

6. The waste gas treatment device for pesticide production according to claim 5, characterized in that: The liquid atomization mechanism (11) comprises a conical cover (111), the bottom circumferential surface of the conical cover (111) is provided with an annular fixing plate structure (112) which is an integral structure with the conical cover (111) and fixedly mounted on the upper end surface of the partition structure (4), the conical cover (111) is a conical structure with a lower diameter larger than its upper diameter, and the conical cover (111) is provided with a conical cavity (113) with a lower diameter larger than its upper diameter, the top end of the conical cavity (113) is connected to the upper space, and the bottom end of the conical cavity (113) is correspondingly connected to a top port of the exhaust gas flow port (6), and the outer inclined surface of the conical cover (111) is provided with a plurality of liquid oblique channels (114) which are an integral structure with the conical cover (111), and the liquid oblique channels (114) are provided with liquid oblique flow holes (115) with both the bottom and the top being open.

7. The waste gas treatment device for pesticide production according to claim 6, characterized in that: The top end of the liquid oblique flow hole (115) is flush with the top opening end of the conical cavity (113), and the bottom end of the liquid oblique flow hole (115) is higher than the upper end surface of the annular fixing plate structure (112).

8. The waste gas treatment device for pesticide production according to claim 7, characterized in that: The level of the waste liquid discharge channel (8) is between the bottom opening end of the liquid oblique flow hole (115) and the top opening end of the liquid oblique flow hole (115).

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