CN112717662A - Thiophanate methyl tail gas treatment process - Google Patents
Thiophanate methyl tail gas treatment process Download PDFInfo
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- CN112717662A CN112717662A CN202011412736.1A CN202011412736A CN112717662A CN 112717662 A CN112717662 A CN 112717662A CN 202011412736 A CN202011412736 A CN 202011412736A CN 112717662 A CN112717662 A CN 112717662A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
Abstract
The invention discloses a thiophanate methyl tail gas treatment process, which comprises the following steps: s1, collecting tail gas, namely collecting the dry waste gas generated in the wet thiophanate-methyl product drying process and the ethyl acetate non-condensable gas generated in the desolventizing kettle, the rectifying kettle and the recovery process to obtain thiophanate-methyl tail gas; s2, condensing and absorbing most of organic solvent in the thiophanate-methyl tail gas through an absorber, and removing ethyl acetate through a water scrubber to obtain primary treated tail gas; s3, treating organic matters and dust contained in the primarily treated tail gas through a tail gas treatment device, namely finishing the treatment of the thiophanate methyl tail gas; according to the invention, through the arrangement of the stirring holes, the tail gas for primary treatment can flow from the stirring holes conveniently, and the stirring efficiency is further improved. The contact area of preliminary treatment tail gas and treatment fluid has further been improved through atomizing treatment fluid, has improved absorption efficiency, promotes the effect of tail gas treatment.
Description
Technical Field
The invention relates to the technical field of thiophanate-methyl production equipment, in particular to a thiophanate-methyl tail gas treatment process.
Background
Thiophanate methyl, which is a broad-spectrum systemic low-toxicity fungicide, has systemic, preventive and therapeutic effects. It was originally developed by Nippon Caoda corporation. Can effectively prevent and control diseases of various crops.
The main atmospheric pollutants in the production process of thiophanate-methyl are dry waste gas generated in a wet thiophanate-methyl product drying process, ethyl acetate non-condensable gas generated in a desolventizing kettle, a rectifying kettle and a recovery process, and gases with special odor, such as sulfur, nitrogen, hydrogen chloride and the like, in the waste gas.
The tail gas treatment device is commonly used in the tail gas treatment process of thiophanate methyl, the contact area between the treatment liquid and the tail gas of the existing tail gas treatment device is small, so that the reaction liquid cannot sufficiently absorb organic matters in the tail gas, the absorption times are small, the absorption efficiency is low, and the effect is not good.
In order to solve the above-mentioned drawbacks, a technical solution is now provided.
Disclosure of Invention
The invention aims to provide a thiophanate-methyl tail gas treatment process.
The technical problems to be solved by the invention are as follows:
the contact area of the treatment liquid and the tail gas of the existing tail gas treatment device is small, so that the reaction liquid cannot sufficiently absorb organic matters in the tail gas, the absorption times are small, the absorption efficiency is low, and the effect is not good.
The purpose of the invention can be realized by the following technical scheme:
a thiophanate methyl tail gas treatment process comprises the following steps:
s1, collecting tail gas, namely collecting the dry waste gas generated in the wet thiophanate-methyl product drying process and the ethyl acetate non-condensable gas generated in the desolventizing kettle, the rectifying kettle and the recovery process to obtain thiophanate-methyl tail gas;
s2, condensing and absorbing most of organic solvent in the thiophanate-methyl tail gas through an absorber, and removing ethyl acetate through a water scrubber to obtain primary treated tail gas;
s3, treating organic matters and dust contained in the primarily treated tail gas through a tail gas treatment device, namely finishing the treatment of the thiophanate methyl tail gas; the specific operation steps of the tail gas treatment device are as follows:
firstly, introducing the primarily treated tail gas into a tail gas treatment chamber from a tail gas inlet, absorbing organic matters containing S and N in the tail gas through treatment liquid, starting a second motor, driving an output end of the second motor to drive a stirring blade to rotate, and increasing the contact area between the primarily treated tail gas and the treatment liquid;
secondly, starting the first motor, driving the output end of the first motor to drive the worm to rotate, so as to drive the worm wheel meshed with the worm to rotate, driving the rotating rod to rotate by the worm wheel, driving the rotating cam to rotate, downwards extruding the roller by the rotating cam, driving the lifting rod to downwards move, keeping the roller in contact with the rotating cam by matching with the reset spring, driving the lifting rod to do up-and-down reciprocating motion, and driving the piston to do up-and-down reciprocating motion in the atomization chamber;
the third step, when the piston upward movement, the pressure reduction in the atomizer, the treatment fluid in the stock solution room can be through first liquid channel and knock off first ball sealer and get into in the atomizer, when the piston downward movement, the pressure in the atomizer risees, first ball sealer stops up first liquid channel under first expanding spring's effect, the second ball sealer leaves second liquid channel under the effect of treatment hydraulic pressure, thereby make the treatment fluid get into in the shower chamber, and finally spout from the atomizing hole on the shower head, form vaporific liquid and spout to the preliminary treatment tail gas that spills over from the treatment fluid inside, the preliminary treatment tail gas after the absorption filters the final tail gas export of following tail gas of discharging such as dust through the filter screen, accomplish the tail gas treatment process.
Further, the exhaust gas treatment device in step S3 includes an exhaust gas treatment chamber, the exhaust gas treatment chamber includes a treatment chamber cover and a treatment chamber cylinder, the treatment chamber cover and the treatment chamber cylinder are respectively located at the top and the bottom of the exhaust gas treatment chamber, the treatment chamber cover and the treatment chamber cylinder are fixedly connected, and a filter screen is disposed at a position where the treatment chamber cover and the treatment chamber cylinder are connected;
a support frame is fixed at the top end of the outer part of the processing chamber cover part, a first motor is fixed at the top of the support frame, the output end of the first motor penetrates through the support frame and the processing chamber cover part and is rotatably connected with the support frame and the processing chamber cover part, a worm is fixed at the output end of the first motor and is positioned in the processing chamber cover part, a rotating rod is arranged in the processing chamber cover part, one end of the rotating rod is rotatably connected with the rear end wall of the processing chamber cover part, a rotating cam is fixed at the other end of the rotating rod, a worm wheel is fixed on the rotating rod and is positioned between the rotating cam and the rear side wall of the processing chamber cover part, and;
the tail gas treatment device comprises a tail gas treatment chamber, a treatment chamber cover, a lifting rod, a limiting plate, a rotating cam, a limiting plate, a filter screen, a lifting roller, a return spring and a filter screen, wherein the lifting rod is arranged in the tail gas treatment chamber, the top end of the lifting rod is positioned in the treatment chamber cover, the bottom end of the lifting rod is positioned in the treatment chamber barrel, the top end of the lifting rod is provided with the roller, the roller is rotatably connected with the top end of the lifting rod, the top of the roller is contacted with the bottom of the rotating cam, the lifting rod is fixedly provided with the limiting plate;
an atomization chamber is fixed in the center of the lower surface of the filter screen, liquid storage chambers which are symmetrically distributed are fixed on two side walls of the outer portion of the atomization chamber, the liquid storage chambers are communicated with the atomization chamber through a first liquid channel, a spray chamber is fixed at the bottom end of the outer portion of the atomization chamber, and the spray chamber is communicated with the atomization chamber through a second liquid channel;
the bottom of lifter passes filter screen and atomizer chamber and with filter screen and atomizer chamber sliding connection, the bottom mounting of lifter has the piston, the side of piston closely laminates and sliding connection with the inside lateral wall of atomizer chamber, the one end that first liquid passage is close to the atomizer chamber is equipped with first ball sealer, the one end that first liquid passage was kept away from to first ball sealer is fixed with first expanding spring, the one end that the atomizer chamber was kept away from to the second liquid passage is equipped with the second ball sealer, the one end that second liquid passage was kept away from to the second ball sealer is fixed with the second expanding spring.
Furthermore, the inside bottom of treatment chamber section of thick bamboo portion is equipped with the treatment fluid, and the outside bottom of treatment chamber section of thick bamboo portion is fixed with the second motor, and the output of second motor passes treatment chamber section of thick bamboo portion and rotates with treatment chamber section of thick bamboo portion to be connected, and the output of second motor is fixed with a plurality of symmetric distribution's stirring vane, has seted up a plurality of evenly distributed's stirring hole on the stirring vane, and stirring vane is located the inside of treatment fluid.
Further, the treatment liquid is water, caustic soda liquid and sodium hypochlorite according to a weight ratio of 5: 2: 1, the concentration of the liquid caustic soda is 30 percent by mass fraction, and the concentration of the sodium chlorate is 10 percent by mass fraction.
Further, the tail gas import of symmetric distribution is seted up to the outside both sides wall of process chamber section of thick bamboo portion, and the tail gas import is located the below of treatment fluid liquid level, and the outside bottom mounting of process chamber section of thick bamboo portion has two symmetric distribution's supporting leg, and two supporting legs are located the both sides of second motor respectively, and the tail gas export has been seted up to outside top one side of process chamber lid, and the tail gas export is located one side of support frame.
Further, first liquid passage, first ball sealer and first expanding spring all are provided with two, and all parallel arrangement each other, and first ball sealer is located the inside of atomizer chamber, and first ball sealer closely laminates with first liquid passage's one end, and the diameter of first ball sealer is greater than first liquid passage's internal diameter, and second ball sealer is located the inside of spray room, and second ball sealer closely laminates with second liquid passage's one end, and the diameter of second ball sealer is greater than second liquid passage's internal diameter.
Furthermore, the end of the first expansion spring far away from the first sealing ball is fixed with the inner side wall of the atomizing chamber, and the end of the second expansion spring far away from the second sealing ball is fixed with the inner bottom end of the spraying chamber.
Furthermore, a spray header is fixed at the bottom of the spray chamber, and a plurality of uniformly distributed atomization holes are formed in the position, away from the circle center, of the lower surface of the spray header.
Furthermore, the side surface of the filter screen is fixed with the inner side surface of the treatment chamber cylinder part, and a plurality of uniformly distributed filter holes are formed in the filter screen.
The invention has the beneficial effects that:
according to the invention, through the arrangement of the stirring holes, the tail gas for primary treatment can flow from the stirring holes conveniently, and the stirring efficiency is further improved. Let in the tail gas treatment chamber from the tail gas import with preliminary treatment tail gas to absorb the organic matter that contains S and N in to tail gas through the treatment fluid, start the second motor, drive its output and drive stirring vane and rotate, increase the area of contact of preliminary treatment tail gas and treatment fluid, improve absorption efficiency.
The output end of the first motor is driven to drive the worm to rotate by starting the first motor, so that a worm wheel meshed with the first motor is driven to rotate, the worm wheel drives the rotating rod to rotate, so that the rotating cam is driven to rotate, the rotating cam extrudes the roller downwards to drive the lifting rod to move downwards, the roller is always kept in contact with the rotating cam by matching with the reset spring to drive the lifting rod to reciprocate up and down, and the piston is driven to reciprocate up and down in the atomization chamber;
the contact area of preliminary treatment tail gas and treatment fluid has further been improved through atomizing treatment fluid, has improved absorption efficiency, promotes the effect of tail gas treatment. When the piston upward movement, the pressure in the atomizer reduces, the treatment fluid in the stock solution room can be through first liquid passage and knock off first ball sealer and get into in the atomizer, when the piston downward movement, pressure in the atomizer risees, first ball sealer stops up first liquid passage under first expanding spring's effect, the second ball sealer leaves second liquid passage under the effect of treatment hydraulic pressure, thereby make the treatment fluid get into in the shower chamber, and finally from the atomized hole blowout on the shower head, form vaporific liquid and spout to the preliminary treatment tail gas that spills over from treatment fluid inside, the preliminary treatment tail gas after the absorption filters through the filter screen and filters the final tail gas export of following granule such as dust and discharges, accomplish the tail gas treatment process.
Drawings
The invention is described in further detail below with reference to the figures and specific embodiments.
FIG. 1 is a schematic view of the overall structure of the exhaust gas treatment apparatus of the present invention;
FIG. 2 is a schematic view of the internal structure of the exhaust gas treatment chamber according to the present invention;
fig. 3 is a side view of a swivelling lever of the present invention;
FIG. 4 is a schematic view of the worm gear and worm of the present invention;
FIG. 5 is a schematic view of the structure of the filter net of the present invention;
FIG. 6 is a schematic structural view of the showerhead of the present invention;
FIG. 7 is a schematic view of the structure of the stirring vane of the present invention.
In the figure, 1, a tail gas treatment chamber; 11. a process chamber cover; 12. a processing chamber cylinder part; 13. a filter screen; 131. a filtration pore; 14. a tail gas inlet; 15. supporting legs; 16. a tail gas outlet; 2. a support frame; 201. a first motor; 202. a worm; 203. rotating the rod; 204. rotating the cam; 205. a worm gear; 206. a lifting rod; 207. a roller; 208. a limiting plate; 209. a return spring; 210. an atomization chamber; 211. a liquid storage chamber; 212. a first liquid channel; 213. a spray chamber; 214. a second liquid passage; 215. a piston; 216. a first sealing ball; 217. a first extension spring; 218. a second sealing ball; 219. a second extension spring; 220. a shower head; 221. an atomization orifice; 3. a second motor; 31. a stirring blade; 32. and (4) stirring holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
A thiophanate methyl tail gas treatment process comprises the following steps:
s1, collecting tail gas, namely collecting the dry waste gas generated in the wet thiophanate-methyl product drying process and the ethyl acetate non-condensable gas generated in the desolventizing kettle, the rectifying kettle and the recovery process to obtain thiophanate-methyl tail gas;
s2, condensing and absorbing most of organic solvent in the thiophanate-methyl tail gas through an absorber, and removing ethyl acetate through a water scrubber to obtain primary treated tail gas;
and S3, treating organic matters and dust contained in the primarily treated tail gas through a tail gas treatment device, namely finishing the treatment of the thiophanate methyl tail gas.
Referring to fig. 1-7, the exhaust gas treatment device according to the above embodiment includes an exhaust gas treatment chamber 1, the exhaust gas treatment chamber 1 includes a treatment chamber cover 11 and a treatment chamber cylinder 12, the treatment chamber cover 11 and the treatment chamber cylinder 12 are respectively located at the top and the bottom of the exhaust gas treatment chamber 1, the treatment chamber cover 11 and the treatment chamber cylinder 12 are fixedly connected, and a filter screen 13 is disposed at a position where the treatment chamber cover 11 and the treatment chamber cylinder 12 are connected;
a support frame 2 is fixed at the top end of the outer part of the treatment chamber cover part 11, a first motor 201 is fixed at the top part of the support frame 2, the output end of the first motor 201 penetrates through the support frame 2 and the treatment chamber cover part 11 and is rotatably connected with the support frame 2 and the treatment chamber cover part 11, a worm 202 is fixed at the output end of the first motor 201, the worm 202 is positioned in the treatment chamber cover part 11 and is positioned above the filter screen 13, a rotating rod 203 is arranged in the treatment chamber cover part 11, one end of the rotating rod 203 is rotatably connected with the rear end wall of the treatment chamber cover part 11, a rotating cam 204 is fixed at the other end of the rotating rod 203, a worm wheel 205 is fixed on the rotating rod 203, the worm wheel 205 is positioned between the rotating cam 204 and the rear side wall of;
the tail gas treatment chamber 1 is internally provided with a lifting rod 206, the top end of the lifting rod 206 is positioned inside the treatment chamber cover part 11, namely above the filter screen 13, the bottom end of the lifting rod 206 is positioned inside the treatment chamber cylinder part 12, namely below the filter screen 13, the top end of the lifting rod 206 is provided with a roller 207, the roller 207 is rotatably connected with the top end of the lifting rod 206, the top of the roller 207 is contacted with the bottom of the rotating cam 204, a limit plate 208 is fixed on the lifting rod 206, the limit plate 208 is positioned between the roller 207 and the filter screen 13, a return spring 209 is arranged between the limit plate 208 and the filter screen 13, two ends of the return spring 209 are respectively fixed with the bottom of the limit plate 208 and the upper surface of the filter screen 13, and the roller 207 is always kept in contact with the rotating cam 204 through the arrangement of.
An atomizing chamber 210 is fixed at the center of the lower surface of the filter screen 13, liquid storage chambers 211 which are symmetrically distributed are fixed on two side walls outside the atomizing chamber 210, the liquid storage chambers 211 are communicated with the atomizing chamber 210 through a first liquid channel 212, a spray chamber 213 is fixed at the bottom end outside the atomizing chamber 210, and the spray chamber 213 is communicated with the atomizing chamber 210 through a second liquid channel 214;
the bottom end of the lifting rod 206 penetrates through the filter screen 13 and the atomizing chamber 210 and is in sliding connection with the filter screen 13 and the atomizing chamber 210, the bottom end of the lifting rod 206 is fixed with a piston 215, the side surface of the piston 215 is tightly attached to and in sliding connection with the inner side wall of the atomizing chamber 210, the pressure inside the atomizing chamber 210 is adjusted through the cooperation of the lifting rod 206 and the piston 215, one end, close to the atomizing chamber 210, of the first liquid passage 212 is provided with a first sealing ball 216, one end, far away from the first liquid passage 212, of the first sealing ball 216 is fixed with a first telescopic spring 217, one end, far away from the atomizing chamber 210, of the second liquid passage 214 is provided with a second sealing ball 218, and one end, far away from the second liquid passage 214, of the second sealing ball 218 is fixed with;
the inside bottom of treatment chamber section of thick bamboo portion 12 is equipped with the treatment fluid, and the treatment fluid is water, liquid caustic soda and sodium hypochlorite according to the weight ratio 5: 2: 1, the liquid caustic soda is obtained by mixing, the mass fraction concentration of the liquid caustic soda is 30%, the mass fraction concentration of the sodium chlorate is 10%, the bottom end of the outer side of the treatment chamber barrel part 12 is fixedly provided with a second motor 3, the output end of the second motor 3 penetrates through the treatment chamber barrel part 12 and is rotatably connected with the treatment chamber barrel part 12, the output end of the second motor 3 is fixedly provided with a plurality of stirring blades 31 which are symmetrically distributed, a plurality of uniformly distributed stirring holes 32 are formed in the stirring blades 31, and the stirring blades 31 are positioned in the treatment liquid;
the two side walls of the outer part of the treatment chamber barrel part 12 are provided with symmetrically distributed tail gas inlets 14, the tail gas inlets 14 are positioned below the liquid level of the treatment liquid, the bottom end of the outer part of the treatment chamber barrel part 12 is fixed with two symmetrically distributed supporting legs 15, the two supporting legs 15 are respectively positioned at two sides of the second motor 3, one side of the top end of the outer part of the treatment chamber cover part 11 is provided with a tail gas outlet 16, and the tail gas outlet 16 is positioned at one side of the support frame 2;
the first liquid passage 212, the first sealing ball 216 and the first extension spring 217 are arranged in two and are arranged in parallel, the first sealing ball 216 is located inside the atomizing chamber 210, the first sealing ball 216 is tightly attached to one end of the first liquid passage 212, the diameter of the first sealing ball 216 is larger than the inner diameter of the first liquid passage 212, the second sealing ball 218 is located inside the spraying chamber 213, the second sealing ball 218 is tightly attached to one end of the second liquid passage 214, and the diameter of the second sealing ball 218 is larger than the inner diameter of the second liquid passage 214.
One end of the first expansion spring 217 far from the first sealing ball 216 is fixed to the inner side wall of the atomizing chamber 210, and one end of the second expansion spring 219 far from the second sealing ball 218 is fixed to the inner bottom end of the shower chamber 213.
A spray header 220 is fixed at the bottom of the spray chamber 213, and a plurality of evenly distributed atomization holes 221 are formed in the position, away from the center of a circle, of the lower surface of the spray header 220.
The cross-sectional shape of the rotating cam 204 is irregular to provide unequal radii of rotation of the rotating cam 204, thereby providing power to the lifter 206 to move up and down.
The top view shape of the filter screen 13 and the top view shape of the treatment chamber barrel part 12 are both circular, the side surface of the filter screen 13 is fixed with the inner side surface of the treatment chamber barrel part 12, and a plurality of uniformly distributed filter holes 131 are formed in the filter screen 13 and used for filtering dust and partial pollutants in the thiophanate-methyl tail gas, so that the thiophanate-methyl tail gas is cleaner when being discharged.
The working process and principle of the tail gas treatment device are as follows:
when the tail gas treatment device is used, the primarily treated tail gas is introduced into the tail gas treatment chamber 1 from the tail gas inlet 14, organic matters containing S and N in the tail gas are absorbed through the treatment liquid, the second motor 3 is started, the output end of the second motor is driven to drive the stirring blade 31 to rotate, the contact area between the primarily treated tail gas and the treatment liquid is increased, the absorption efficiency is improved, the stirring holes 32 are arranged, the primarily treated tail gas can conveniently flow from the stirring holes 32, and the stirring efficiency is further improved.
Starting the first motor 201, driving the output end thereof to drive the worm 202 to rotate, thereby driving the worm wheel 205 engaged therewith to rotate, driving the rotating rod 203 to rotate by the worm wheel 205, thereby driving the rotating cam 204 to rotate, pressing the roller 207 downwards by the rotating cam 204, driving the lifting rod 206 to move downwards, keeping the roller 207 in contact with the rotating cam 204 by matching with the return spring 209, driving the lifting rod 206 to reciprocate up and down, thereby driving the piston 215 to reciprocate up and down in the atomizing chamber 210;
when the piston 215 moves upwards, the pressure in the atomizing chamber 210 is reduced, the processing liquid in the liquid storage chamber 211 can pass through the first liquid passage 212 and collide against the first sealing ball 216 to enter the atomizing chamber 210, when the piston 215 moves downwards, the pressure in the atomizing chamber 210 is increased, the first sealing ball 216 blocks the first liquid passage 212 under the action of the first expansion spring 217, the second sealing ball 218 leaves the second liquid passage 214 under the action of the processing liquid pressure, so that the processing liquid enters the spraying chamber 213 and is finally sprayed out from the atomizing holes 221 on the spraying head 220 to form atomized liquid and is sprayed to the primary processing tail gas overflowing from the inside of the processing liquid, and the absorbed primary processing tail gas is filtered by the filter screen 13 to filter particles such as dust and the like and is finally discharged from the tail gas outlet 16, so that the tail gas processing process is completed. The contact area of preliminary treatment tail gas and treatment fluid has further been improved to atomizing treatment fluid, has improved absorption efficiency, promotes the effect of tail gas treatment.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the accompanying claims.
Claims (9)
1. The thiophanate methyl tail gas treatment process is characterized by comprising the following steps of:
s1, collecting tail gas, namely collecting the dry waste gas generated in the wet thiophanate-methyl product drying process and the ethyl acetate non-condensable gas generated in the desolventizing kettle, the rectifying kettle and the recovery process to obtain thiophanate-methyl tail gas;
s2, condensing and absorbing most of organic solvent in the thiophanate-methyl tail gas through an absorber, and removing ethyl acetate through a water scrubber to obtain primary treated tail gas;
s3, treating organic matters and dust contained in the primarily treated tail gas through a tail gas treatment device, namely finishing the treatment of the thiophanate methyl tail gas; the specific operation steps of the tail gas treatment device are as follows:
firstly, introducing the primarily treated tail gas into a tail gas treatment chamber (1) from a tail gas inlet (14), absorbing organic matters containing S and N in the tail gas through treatment liquid, starting a second motor (3), driving an output end of the second motor to drive a stirring blade (31) to rotate, and increasing the contact area of the primarily treated tail gas and the treatment liquid;
secondly, starting the first motor (201), driving the output end of the first motor to drive the worm (202) to rotate, so as to drive the worm wheel (205) meshed with the worm to rotate, driving the rotating rod (203) to rotate by the worm wheel (205), driving the rotating cam (204) to rotate, downwards extruding the roller (207) by the rotating cam (204), driving the lifting rod (206) to downwards move, keeping the roller (207) in contact with the rotating cam (204) all the time by matching with the reset spring (209), and driving the lifting rod (206) to do up-and-down reciprocating motion, so as to drive the piston (215) to do up-and-down reciprocating motion in the atomizing chamber (210);
thirdly, when the piston (215) moves upwards, the pressure in the atomizing chamber (210) is reduced, the processing liquid in the liquid storage chamber (211) can enter the atomizing chamber (210) through the first liquid channel (212) and knock the first sealing ball (216) open, when the piston (215) moves downwards, the pressure in the atomizing chamber (210) is increased, the first sealing ball (216) blocks the first liquid channel (212) under the action of the first expansion spring (217), the second sealing ball (218) leaves the second liquid channel (214) under the action of the processing liquid pressure, so that the processing liquid enters the spraying chamber (213) and is finally sprayed out from the atomizing holes (221) on the spraying head (220), atomized liquid is formed and sprayed to the processing tail gas overflowing from the processing liquid, and the absorbed primary processing tail gas is filtered by the filter screen (13) and finally discharged from the tail gas outlet (16), the tail gas treatment process is completed.
2. The thiophanate methyl tail gas treatment process according to claim 1, wherein the tail gas treatment device in step S3 comprises a tail gas treatment chamber (1), the tail gas treatment chamber (1) comprises a treatment chamber cover part (11) and a treatment chamber barrel part (12), the treatment chamber cover part (11) and the treatment chamber barrel part (12) are respectively located at the top and the bottom of the tail gas treatment chamber (1), the treatment chamber cover part (11) and the treatment chamber barrel part (12) are fixedly connected, and a filter screen (13) is arranged at the connecting position of the treatment chamber cover part (11) and the treatment chamber barrel part (12);
the top end of the outer part of the processing chamber cover part (11) is fixed with a support frame (2), the top of the support frame (2) is fixed with a first motor (201), the output end of the first motor (201) penetrates through the support frame (2) and the processing chamber cover part (11) and is rotationally connected with the support frame (2) and the processing chamber cover part (11), the output end of the first motor (201) is fixed with a worm (202), the worm (202) is located inside the processing chamber cover part (11), a rotating rod (203) is arranged inside the processing chamber cover part (11), one end of the rotating rod (203) is rotationally connected with the rear end wall of the processing chamber cover part (11), the other end of the rotating rod (203) is fixed with a rotating cam (204), a worm wheel (205) is fixed on the rotating rod (203), the worm wheel (205) is located between the rotating cam (204) and the rear side wall of the processing chamber cover part (11), and the worm wheel (;
the tail gas treatment chamber is characterized in that a lifting rod (206) is arranged inside the tail gas treatment chamber (1), the top end of the lifting rod (206) is positioned inside a treatment chamber cover part (11), the bottom end of the lifting rod (206) is positioned inside a treatment chamber cylinder part (12), a roller (207) is arranged at the top end of the lifting rod (206), the roller (207) is rotatably connected with the top end of the lifting rod (206), the top of the roller (207) is contacted with the bottom of a rotating cam (204), a limiting plate (208) is fixed on the lifting rod (206), the limiting plate (208) is positioned between the roller (207) and a filter screen (13), a reset spring (209) is arranged between the limiting plate (208) and the filter screen (13), and the two ends of the reset spring (209) are respectively fixed with the bottom of the limiting plate (208) and the upper surface of the filter screen (13);
an atomization chamber (210) is fixed in the center of the lower surface of the filter screen (13), liquid storage chambers (211) which are symmetrically distributed are fixed on two outer side walls of the atomization chamber (210), the liquid storage chambers (211) are communicated with the atomization chamber (210) through a first liquid channel (212), a spray chamber (213) is fixed at the outer bottom end of the atomization chamber (210), and the spray chamber (213) is communicated with the atomization chamber (210) through a second liquid channel (214);
the bottom of lifter (206) passes filter screen (13) and atomizer chamber (210) and with filter screen (13) and atomizer chamber (210) sliding connection, the bottom mounting of lifter (206) has piston (215), the side of piston (215) closely laminates and sliding connection with the inside lateral wall of atomizer chamber (210), the one end that first liquid passageway (212) are close to atomizer chamber (210) is equipped with first ball sealer (216), the one end that first liquid passageway (212) are kept away from in first ball sealer (216) is fixed with first expanding spring (217), the one end that atomizer chamber (210) are kept away from in second liquid passageway (214) is equipped with second ball sealer (218), the one end that second liquid passageway (214) are kept away from in second ball sealer (218) is fixed with second expanding spring (219).
3. The thiophanate methyl tail gas treatment process according to claim 2, characterized in that the treatment liquid is arranged at the bottom end inside the treatment chamber barrel part (12), the second motor (3) is fixed at the bottom end outside the treatment chamber barrel part (12), the output end of the second motor (3) penetrates through the treatment chamber barrel part (12) and is rotatably connected with the treatment chamber barrel part (12), a plurality of stirring blades (31) which are symmetrically distributed are fixed at the output end of the second motor (3), a plurality of uniformly distributed stirring holes (32) are formed in the stirring blades (31), and the stirring blades (31) are positioned inside the treatment liquid.
4. The thiophanate methyl tail gas treatment process according to claim 2, wherein the treatment liquid is water, caustic soda liquid and sodium hypochlorite in a weight ratio of 5: 2: 1, the concentration of the liquid caustic soda is 30 percent by mass fraction, and the concentration of the sodium chlorate is 10 percent by mass fraction.
5. The thiophanate methyl tail gas treatment process according to claim 2, wherein the tail gas inlet (14) is symmetrically arranged on two outer side walls of the treatment chamber barrel part (12), the tail gas inlet (14) is positioned below the liquid level of the treatment liquid, two symmetrically arranged support legs (15) are fixed at the outer bottom end of the treatment chamber barrel part (12), the two support legs (15) are respectively positioned on two sides of the second motor (3), the tail gas outlet (16) is arranged on one side of the outer top end of the treatment chamber cover part (11), and the tail gas outlet (16) is positioned on one side of the support frame (2).
6. The thiophanate-methyl tail gas treatment process according to claim 2, wherein the first liquid passage (212), the first sealing ball (216) and the first expansion spring (217) are arranged in two and are arranged in parallel, the first sealing ball (216) is located inside the atomization chamber (210), the first sealing ball (216) is closely attached to one end of the first liquid passage (212), the diameter of the first sealing ball (216) is larger than the inner diameter of the first liquid passage (212), the second sealing ball (218) is located inside the spray chamber (213), the second sealing ball (218) is closely attached to one end of the second liquid passage (214), and the diameter of the second sealing ball (218) is larger than the inner diameter of the second liquid passage (214).
7. The thiophanate-methyl tail gas treatment process according to claim 2, wherein the end of the first expansion spring (217) away from the first sealing ball (216) is fixed to the inner side wall of the atomization chamber (210), and the end of the second expansion spring (219) away from the second sealing ball (218) is fixed to the inner bottom end of the spray chamber (213).
8. The thiophanate methyl tail gas treatment process according to claim 2, characterized in that a spray header (220) is fixed at the bottom of the spray chamber (213), and a plurality of evenly distributed atomization holes (221) are formed in the position, away from the center of the circle, of the lower surface of the spray header (220).
9. The thiophanate methyl tail gas treatment process according to claim 2, characterized in that the side surface of the filter screen (13) is fixed with the inner side surface of the treatment chamber barrel part (12), and the filter screen (13) is provided with a plurality of uniformly distributed filter holes (131).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011412736.1A CN112717662A (en) | 2020-12-03 | 2020-12-03 | Thiophanate methyl tail gas treatment process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011412736.1A CN112717662A (en) | 2020-12-03 | 2020-12-03 | Thiophanate methyl tail gas treatment process |
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| CN112717662A true CN112717662A (en) | 2021-04-30 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205850512U (en) * | 2016-08-09 | 2017-01-04 | 赣州鑫隆康稀土有限公司 | A kind of spray equipment of rare earth waste gas recovery |
| CN107551772A (en) * | 2017-10-24 | 2018-01-09 | 王根英 | Desulfurization device |
| CN108310953A (en) * | 2018-04-08 | 2018-07-24 | 卢庆芝 | A kind of eccentric lifting formula environment-protecting type exhaust air spray treatment device |
| CN109381945A (en) * | 2018-12-21 | 2019-02-26 | 洪辉 | High effect dust cleaner is used in a kind of construction protection |
| CN209322501U (en) * | 2018-09-14 | 2019-08-30 | 北京联飞翔科技股份有限公司 | A kind of vent gas treatment liquid recycling and processing device |
| CN211098372U (en) * | 2019-08-06 | 2020-07-28 | 赣州南科环保有限公司 | Efficient flue gas desulfurization tower |
| CN211216080U (en) * | 2019-08-23 | 2020-08-11 | 安徽广信农化股份有限公司 | Thiophanate methyl tail gas treatment device |
-
2020
- 2020-12-03 CN CN202011412736.1A patent/CN112717662A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205850512U (en) * | 2016-08-09 | 2017-01-04 | 赣州鑫隆康稀土有限公司 | A kind of spray equipment of rare earth waste gas recovery |
| CN107551772A (en) * | 2017-10-24 | 2018-01-09 | 王根英 | Desulfurization device |
| CN108310953A (en) * | 2018-04-08 | 2018-07-24 | 卢庆芝 | A kind of eccentric lifting formula environment-protecting type exhaust air spray treatment device |
| CN209322501U (en) * | 2018-09-14 | 2019-08-30 | 北京联飞翔科技股份有限公司 | A kind of vent gas treatment liquid recycling and processing device |
| CN109381945A (en) * | 2018-12-21 | 2019-02-26 | 洪辉 | High effect dust cleaner is used in a kind of construction protection |
| CN211098372U (en) * | 2019-08-06 | 2020-07-28 | 赣州南科环保有限公司 | Efficient flue gas desulfurization tower |
| CN211216080U (en) * | 2019-08-23 | 2020-08-11 | 安徽广信农化股份有限公司 | Thiophanate methyl tail gas treatment device |
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Application publication date: 20210430 |