A purification device and method for incinerator waste gas

Abstract

A purification device and method for incinerator waste gas, belonging to the technical field of waste gas purification, is to solve the problem that the water vapor and particulate matter in the flue gas are not well combined, which easily causes blockage inside the flue gas purification system, and the harmful substances in the flue gas are easily discharged without completely reacting. The solution after the reaction is completed is discharged and then filled, and the whole process takes a long time. In the present invention, large particles are intercepted by a filter plate and fall between a first spring and the inner wall of a sleeve. Subsequently, small particles are intercepted by a dust bag during the process of the flue gas entering a first smoke outlet pipe through a bend pipe. In the present invention, the first rotating plate and the second rotating plate are rotated simultaneously under the action of a first driving component, the filter plate and the dust bag can be replaced, and the extension of the first telescopic cylinder can insert a pin into the hole of the filter plate to clean the filter plate and clean the space between the conical tube and the sleeve.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas purification, and in particular to a purification device and method for waste gas from an incinerator. Background Art

[0002] Incinerator is a kind of harmless treatment equipment commonly used in the harmless treatment of medical and domestic waste and animals. Its principle is to use the combustion of fuels such as coal, oil, and gas to burn and carbonize the objects to be treated at high temperature to achieve the purpose of disinfection.

[0003] A Chinese patent (publication number: CN104906940B) proposes a flue gas purification system for a domestic waste incinerator, including a mixer, a primary absorber, a secondary absorber, an emitter, an alkali liquid pool, and a clean water pool. The present invention constructs a mixer, a primary absorber, a secondary absorber, and an emitter, a total of four stages of equipment, to purify the flue gas of the domestic waste incinerator in sequence, wherein the mixer is first used to remove large particles of smoke by condensation and wetting with water vapor, and then the primary absorber and the secondary absorber are used to thoroughly absorb and remove PM2.5 particles and acidic compounds such as carbon dioxide, sulfur dioxide and other harmful components with alkali liquid, and finally the emitter is used to wash the alkali liquid components entrained from the absorber with clean water, and then the clean and pollution-free flue gas is discharged. When the incinerator is processing waste, some thick smoke particles, dust, and harmful gases such as sulfur dioxide and nitrogen dioxide are generated. The existing incineration device usually uses filtering means to remove the dust particles in the purification process.

[0004] The above patent achieves filtering of large particles in the flue gas by mixing flue gas with water vapor. When water vapor combines with the flue gas, the water vapor is in a state of high temperature and high pressure, resulting in poor binding between the water vapor and the particles in the flue gas. Therefore, the filtering effect on large particles is not good, and it is easy to cause blockage inside the flue gas purification system. The common solution reaction method of filtration is prone to the phenomenon that harmful substances in the flue gas are discharged before they are completely reacted. In addition, when the solution needs to be replaced after the reaction, the solution that has completed the reaction needs to be discharged before filling, and the whole process takes a long time.

[0005] To solve the above problems, a purification device and method for incinerator exhaust gas are proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a purification device and method for incinerator exhaust gas, which solves the problem in the background technology that when water vapor combines with flue gas, the water vapor is in a high temperature and high pressure state, resulting in poor binding between water vapor and particulate matter in the flue gas, so the filtering effect on large particulate matter is poor, and it is easy to cause blockage inside the flue gas purification system. The common solution reaction method of filtration is prone to the phenomenon that harmful substances in the flue gas are discharged without completely reacting. In addition, when the solution needs to be replaced after the reaction, the solution that has completed the reaction needs to be discharged first and then filled, and the whole process takes a long time.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a purification device for waste gas from an incinerator, comprising a filter mechanism and a purification mechanism and a liquid replacement mechanism arranged on the filter mechanism, the filter mechanism comprising a smoke outlet assembly, a filter assembly, a first drive assembly and a cleaning assembly, the smoke outlet assembly comprising a bent pipe, the filter assembly comprising a first shell fixedly connected to the bottom of the bent pipe and a second shell fixedly connected to one side of the bent pipe, a first rotating plate rotatably connected inside the first shell, engaging grooves evenly distributed on the first rotating plate, a filter plate is engagedly arranged inside the engaging groove, a sleeve is fixedly connected to the bottom of the filter plate, a conical cylinder is slidably connected inside the sleeve, and the outer wall of the conical cylinder is connected to the sleeve through a first spring;

[0008] The second housing is rotatably connected with a second rotating plate, mounting tubes are evenly distributed on the second rotating plate, dust bags are embedded in the mounting tubes, a first through hole corresponding to the embedding groove is provided on the first housing, and the first through hole penetrates the first housing up and down, a first slot corresponding to the side of the first rotating plate is provided on one side of the first housing, a second through hole penetrating left and right is provided on the second housing, and the second through hole corresponds to the mounting tube, a second slot corresponding to the second rotating plate is provided on the outer side of the second housing, a second smoke outlet pipe is fixedly connected to the bottom of the first housing, and the first smoke outlet pipe is fixedly connected to the other side of the second housing;

[0009] The cleaning component comprises a first telescopic cylinder fixedly connected to the outer wall of the curved pipe, a fixed plate fixedly connected to the bottom of the first telescopic cylinder, pins evenly distributed on the bottom of the fixed plate, and the fixed plate corresponds to the first through hole.

[0010] Furthermore, the first drive component includes a double-headed motor, one side output end of the double-headed motor is fixedly connected to the first meshing wheel through a clutch box, and the first meshing wheel passes through the second slot and is meshed with the second rotating plate, one side of the first meshing wheel is fixedly connected to the first end face gear, the first drive component also includes a fixed seat fixedly connected to the outer wall of the first shell, the top of the fixed seat is rotatably connected to the first bevel gear meshed with the first end face gear, the bottom of the first bevel gear passes through the fixed seat through an axis and is connected to the second meshing wheel, and the second meshing wheel passes through the first slot and is meshed with the first rotating plate.

[0011] Furthermore, the purification mechanism includes a reaction box, and the double-headed motor is fixedly connected to the outer side wall of the reaction box. The purification mechanism also includes a transmission assembly and a pump air assembly. The transmission assembly includes a second end face gear fixedly connected to the output end on the other side of the double-headed motor. The transmission assembly also includes a transmission rod rotatably connected to the bottom of the reaction box, and the bottom of the transmission rod is fixedly connected to a second bevel gear meshing with the second end face gear. The top of the transmission rod extends to the interior of the reaction box and is connected to an active roller.

[0012] Furthermore, the transmission assembly also includes a sector gear rotatably connected to the front and rear inner walls of the top of the reaction box, the bottom of the sector gear is fixedly connected with a transmission roller, and the two groups of transmission rollers are connected to the active roller through a belt.

[0013] Furthermore, the pump air assembly includes a piston cylinder fixedly connected to the upper side of the inner wall at the top of the reaction box, a piston plate is slidably connected to the inside of the piston cylinder, and a rack is fixedly connected between the piston plates, the rack is located between the two groups of fan-shaped gears, and the piston cylinder is fixedly connected to an air intake shell and an exhaust shell on the upper and lower sides of the side close to the edge of the reaction box, and the air intake shell and the exhaust shell are connected to the interior of the piston cylinder, a first fixing rod is fixedly connected to the lower part of the interior of the air intake shell, a second spring is fixedly connected to the top of the first fixing rod, a first sealing plate is fixedly connected to the top of the second spring, a second fixing rod is fixedly connected to the lower part of the interior of the exhaust shell, a third spring is fixedly connected to the top of the second fixing rod, and a second sealing plate is fixedly connected to the top of the third spring.

[0014] Furthermore, the tops of the two groups of air intake shells are respectively connected to the first smoke outlet pipe through the second connecting pipe and the first connecting pipe, one side of the reaction box is fixedly connected to an exhaust pipe, the middle of the exhaust pipe is fixedly connected to a side close to the reaction box, an exhaust hole is provided on the top of the exhaust pipe, and a gas detector is provided on the other end of the exhaust pipe. The pump air assembly also includes a first connecting pipe fixedly connected to the bottom of the exhaust shell, the bottom of the first connecting pipe is fixedly connected to a second connecting pipe, and air holes are evenly distributed on the second connecting pipe.

[0015] Furthermore, the liquid exchange mechanism includes a liquid storage tank, a pre-storage tank, a second drive assembly and a liquid discharge assembly. The liquid storage tank is filled with sodium hydroxide solution. The pre-storage tank is fixedly connected to the upper rear end of the reaction tank, and the pre-storage tank and the reaction tank are connected through a U-shaped tube. The liquid storage tank is fixedly connected to the top of the pre-storage tank, and a sealing tube is fixedly connected to the bottom of the pre-storage tank.

[0016] Furthermore, the second driving assembly includes a second telescopic cylinder fixedly connected to the bottom of the pre-storage box, and the output end of the second telescopic cylinder is fixedly connected to a connecting plate.

[0017] Furthermore, the drainage component includes a first drainage pipe arranged at the bottom of the reaction box and a second drainage pipe arranged between the liquid storage box and the pre-storage box, and a first sealing plug is arranged inside the first drainage pipe. The drainage component also includes a U-shaped rod fixedly connected to the connecting plate, one end of the U-shaped rod passes through the bottom of the first drainage pipe and is fixedly connected to the first sealing plug, and the other end of the U-shaped rod passes through the pre-storage box and the second drainage pipe and is connected to the second sealing plug.

[0018] Another technical solution proposed by the present invention is to provide an implementation method of a purification device for incinerator exhaust gas, comprising the following steps:

[0019] S1: Connect the second smoke outlet pipe to the smoke exhaust duct of the incinerator. The smoke generated by the incinerator passes through the second smoke outlet pipe and passes through the interior of the first shell. Large particles are intercepted by the filter plate and fall between the inner wall of the conical tube and the sleeve. Then, the smoke enters the first smoke outlet pipe through the elbow. Small particles are intercepted by the dust bag. Under the action of the first driving component, the first rotating plate and the second rotating plate rotate simultaneously, and the filter plate and the dust bag can be replaced. The extension of the first telescopic cylinder can insert the pin into the hole of the filter plate to clean the filter plate and clean between the conical tube and the sleeve.

[0020] S2: The double-headed motor is separated from the first meshing wheel through the clutch box, and the double-headed motor causes the piston plate to reciprocate inside the piston cylinder through the transmission assembly. When the piston plate moves inward, the exhaust gas in the first smoke outlet pipe is drawn into the piston cylinder. When the piston plate moves outward inside the piston cylinder, the exhaust gas is evenly discharged into the sodium hydroxide solution inside the reaction box through the exhaust housing, the first connecting pipe and the air vents, completing the reaction and absorption of sulfur dioxide and nitrogen dioxide, and finally discharged through the exhaust hole after being detected by the gas detector;

[0021] S3: When the gas detector detects that the exhaust gas contains nitrogen dioxide and sulfur dioxide gases, the double-headed motor stops, and the second telescopic cylinder retracts through the U-shaped rod to make the first sealing plug leave the first drain pipe, and the second sealing plug leaves the second drain pipe, the solution in the reaction box is discharged, and the solution in the liquid storage tank enters the pre-storage box. When the liquid in the liquid storage tank is drained, the second telescopic cylinder extends half the distance, so that the first sealing plug blocks the first drain pipe. At this time, after the solution in the pre-storage box is filled, the solution is quickly injected into the reaction box through the principle of siphon formation through the U-shaped tube. At the same time, the liquid storage tank continues to pour solution into the pre-storage box until it reaches the appropriate depth, and the second telescopic cylinder extends and resets, thus completing all the implementation steps.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. A purifying device and method for waste gas from an incinerator, wherein the second smoke outlet pipe is connected to the flue of the incinerator, and the smoke enters the curved pipe through the second smoke outlet pipe and the first shell. When passing through the first shell, large particles are intercepted by the filter plate and accumulated between the conical tube and the sleeve, completing the primary filtration. Then the smoke enters the first smoke outlet pipe through the second shell, and the secondary filtration is completed by the dust removal bag inside the second shell. When the smoke outlet speed decreases, the double-headed motor is started, and the double-headed motor drives the first meshing wheel to rotate through the clutch box. When the first meshing wheel rotates, it drives the second rotating plate to rotate, completing the secondary filtration. To replace the dust bags in pairs, the first meshing wheel drives the first end face gear and then drives the second meshing wheel to rotate through the first bevel gear during rotation. When the second meshing wheel rotates, the filter plate and the sleeve are replaced. Subsequently, the holes in the filter plate are cleaned under the action of the extension of the first telescopic cylinder, and the conical tube moves downward inside the sleeve. The previously accumulated large particles of dust slide down from the bottom of the sleeve along the outer wall of the conical tube, completing the cleaning. Compared with the existing filtering technology, it has a good smoke filtering effect and will not cause blockage, thereby realizing the replacement and cleaning of the filtering equipment.

[0024] 2. A purification device and method for waste gas from an incinerator, wherein when a double-headed motor rotates, the second bevel gear is driven to rotate through the second end gear, and the second bevel gear drives the active roller through the transmission rod and then drives the transmission roller to rotate, and when the transmission roller drives the two sets of fan-shaped gears to rotate, the racks are made to reciprocate left and right, and the racks drive the two sets of piston plates to move left and right inside the two sets of piston cylinders, and when the piston plates move inward, the smoke inside the first smoke outlet pipe is sucked into the piston cylinder through the air intake housing, and when the piston plates move outward, the smoke is uniformly transported to the sodium hydroxide solution through the exhaust housing, the first connecting pipe and the second connecting pipe, and finally through the air vents, and finally the purification of sulfur dioxide and nitrogen dioxide is completed, and the smoke finally surrounds the bottom of the partition and is discharged from the exhaust hole, and is detected by a gas detector during the discharge process, so that the purification is completed during the smoke exhaust process, and the purification efficiency is high.

[0025] 3. A purification device and method for incinerator exhaust gas, when the gas detector detects that the gas still contains nitrogen dioxide and sulfur dioxide, the second telescopic cylinder retracts so that the U-shaped rod drives the first sealing plug and the second sealing plug to move upward, and in the process of discharging the solution in the reaction box, the solution in the liquid storage tank enters the interior of the pre-storage box through the second liquid discharge pipe, and when the solution in the reaction box is completely discharged, the solution in the pre-storage box enters the interior of the reaction box through the U-shaped pipe, and at this time, the solution in the liquid storage tank is still being filled into the interior of the pre-storage box. Compared with the traditional solution delivery method, the pre-filling in the process of discharging is realized, and the solution is then filled by the principle of siphoning, without considering the air pressure factor in the liquid storage tank, thereby improving the filling speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the structure of the filtering mechanism of the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the smoke outlet assembly and the filter assembly of the present invention;

[0029] Figure 4 An exploded view of the filter assembly and cleaning assembly structure of the present invention;

[0030] Figure 5 It is a partial structural schematic diagram of the filter assembly of the present invention;

[0031] Figure 6 It is a schematic structural diagram of the first driving assembly of the present invention;

[0032] Figure 7 It is a schematic diagram of the purification mechanism structure of the present invention;

[0033] Figure 8 This is a structural breakdown diagram of the purification mechanism of the present invention;

[0034] Fig. 9 It is a schematic diagram of the transmission assembly structure of the present invention;

[0035] Fig.10 It is a cross-sectional view of the structure of the pump gas assembly of the present invention;

[0036] Fig.11 It is a schematic diagram of the structure of the first connecting pipe part of the present invention;

[0037] Fig.12 It is a schematic diagram of the structure of the liquid replacement mechanism of the present invention;

[0038] Fig.13 It is a cross-sectional view of the structure of the pre-storage box, the second drive assembly and the liquid discharge assembly of the present invention.

[0039] In the figure: 1, filter mechanism; 11, smoke outlet assembly; 111, elbow; 112, first smoke outlet pipe; 113, second smoke outlet pipe; 12, filter assembly; 121, first shell; 1211, first rotating plate; 1212, fitting groove; 1213, filter plate; 1214, sleeve; 1215, conical cylinder; 1216, first spring; 122, first slot; 123, first through hole; 124, second shell; 1241, second rotating plate; 1242, mounting pipe; 1243, dust bag ; 125, second slot; 126, second through hole; 13, first drive assembly; 131, double-headed motor; 1311, clutch box; 132, first meshing wheel; 133, first end gear; 134, fixed seat; 135, first bevel gear; 136, second meshing wheel; 14, cleaning assembly; 141, first telescopic cylinder; 142, fixed plate; 143, pin; 2, purification mechanism; 21, reaction box; 211, first connecting pipe; 212, second connecting pipe; 213, exhaust pipe; 214 , gas detector; 2131, exhaust hole; 2132, partition; 22, transmission assembly; 221, second end gear; 222, second bevel gear; 223, transmission rod; 224, active roller; 225, transmission roller; 226, fan gear; 227, rack; 23, pump gas assembly; 231, piston cylinder; 232, piston plate; 233, intake housing; 2331, first fixing rod; 2332, second spring; 2333, first sealing plate; 234, exhaust housing; 2341, second Fixed rod; 2342, third spring; 2343, second sealing plate; 235, first connecting pipe; 236, second connecting pipe; 237, air vent; 3, liquid exchange mechanism; 31, liquid storage tank; 32, pre-storage tank; 321, U-shaped tube; 322, sealing tube; 33, second driving assembly; 331, second telescopic cylinder; 332, connecting plate; 34, drainage assembly; 341, U-shaped rod; 342, first drainage pipe; 343, first sealing plug; 344, second drainage pipe; 345, second sealing plug. DETAILED DESCRIPTION

[0040] 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.

[0041] In order to solve the technical problems that when water vapor combines with flue gas, the water vapor is in a state of high temperature and high pressure, resulting in poor combination of water vapor and particles in the flue gas, so the filtration effect of large particles is poor, and it is easy to cause blockage in the flue gas purification system, such as Figure 1-Figure 6 As shown, the following preferred technical solutions are provided:

[0042] A purification device for incinerator exhaust gas comprises a filter mechanism 1 and a purification mechanism 2 and a liquid replacement mechanism 3 arranged on the filter mechanism 1, the filter mechanism 1 comprises a smoke outlet assembly 11, a filter assembly 12, a first drive assembly 13 and a cleaning assembly 14, the smoke outlet assembly 11 comprises a curved pipe 111, the filter assembly 12 comprises a first shell 121 fixedly connected to the bottom of the curved pipe 111 and a second shell 124 fixedly connected to one side of the curved pipe 111, the first shell 121 is rotatably connected to a first rotating plate 1211 inside, the first rotating plate 1211 is evenly distributed with engaging grooves 1212, a filter plate 1213 is embedded in the engaging grooves 1212, a sleeve 1214 is fixedly connected to the bottom of the filter plate 1213, a conical cylinder 1215 is slidably connected to the inside of the sleeve 1214, and the outer wall of the conical cylinder 1215 is connected to the sleeve 1214 via a first spring 1216.

[0043] The second shell 124 is rotatably connected to the inside of the second rotating plate 1241, and mounting tubes 1242 are evenly distributed on the second rotating plate 1241. Dust bags 1243 are embedded in the mounting tubes 1242. The first shell 121 is provided with a first through hole 123 corresponding to the embedding groove 1212, and the first through hole 123 penetrates the first shell 121 up and down. One side of the first shell 121 is provided with a first slot 122 corresponding to the side of the first rotating plate 1211. The second shell 124 is provided with a second through hole 126 penetrating left and right, and the second through hole 126 corresponds to the mounting tube 1242. The outer side of the second shell 124 is provided with a second slot 125 corresponding to the second rotating plate 1241. The bottom of the first shell 121 is fixedly connected to the second smoke outlet pipe 113, and the other side of the second shell 124 is fixedly connected to the first smoke outlet pipe 112.

[0044] The cleaning assembly 14 includes a first telescopic cylinder 141 fixedly connected to the outer wall of the curved pipe 111, a fixed plate 142 is fixedly connected to the bottom of the first telescopic cylinder 141, pins 143 are evenly distributed on the bottom of the fixed plate 142, and the fixed plate 142 corresponds to the first through hole 123, and the first driving assembly 13 includes a double-headed motor 131, and one side output end of the double-headed motor 131 is fixedly connected to the first meshing wheel 132 through the clutch box 1311, and the first meshing wheel 132 passes through the second slot 125 and the second rotating plate 1241 is meshedly connected, one side of the first meshing wheel 132 is fixedly connected to the first end face gear 133, the first driving assembly 13 also includes a fixed seat 134 fixedly connected to the outer wall of the first shell 121, the top of the fixed seat 134 is rotatably connected to the first bevel gear 135 meshing with the first end face gear 133, the bottom of the first bevel gear 135 passes through the fixed seat 134 through an axis and is connected to the second meshing wheel 136, and the second meshing wheel 136 passes through the first slot 122 and is meshed with the first rotating plate 1211.

[0045] Specifically, by connecting the second smoke outlet pipe 113 with the flue of the incinerator, the smoke enters the curved pipe 111 through the second smoke outlet pipe 113 and the first shell 121. When passing through the first shell 121, large particles are intercepted by the filter plate 1213 and accumulated between the conical cylinder 1215 and the sleeve 1214, completing a primary filtration. Then, the smoke enters the first smoke outlet pipe 112 through the second shell 124, and a secondary filtration is completed inside the second shell 124 through the dust bag 1243. When the smoke outlet speed decreases, the double-headed motor 131 is started, and the double-headed motor 131 drives the first meshing wheel 132 to rotate through the clutch box 1311, and the first meshing wheel When 132 rotates, it drives the second rotating plate 1241 to rotate, completing the replacement of the dust bag 1243. During the rotation process, the first meshing wheel 132 drives the first end face gear 133 and then drives the second meshing wheel 136 to rotate through the first bevel gear 135. When the second meshing wheel 136 rotates, the filter plate 1213 and the sleeve 1214 are replaced. Subsequently, the holes in the filter plate 1213 are cleaned under the action of the extension of the first telescopic cylinder 141, and the conical tube 1215 is moved downward inside the sleeve 1214. The previously accumulated large particles of dust slide down from the bottom of the sleeve 1214 along the outer wall of the conical tube 1215.

[0046] In order to solve the technical problem that the harmful substances in the flue gas are easily discharged without completely reacting by using the solution reaction filtration method, such as Figure 7-Figure 11 As shown, the following preferred technical solutions are provided:

[0047] The purification mechanism 2 includes a reaction box 21, and the double-headed motor 131 is fixedly connected to the outer side wall of the reaction box 21. The purification mechanism 2 also includes a transmission component 22 and a pump air component 23. The transmission component 22 includes a second end face gear 221 fixedly connected to the output end on the other side of the double-headed motor 131. The transmission component 22 also includes a transmission rod 223 rotatably connected to the bottom of the reaction box 21, and the bottom of the transmission rod 223 is fixedly connected to a second bevel gear 222 meshing with the second end face gear 221. The top of the transmission rod 223 extends to the interior of the reaction box 21 and is connected to an active roller 224. The transmission component 22 also includes a fan gear 226 rotatably connected to the front and rear inner walls of the top of the reaction box 21, and the bottom of the fan gear 226 is fixedly connected to a transmission roller 225. The two groups of transmission rollers 225 are connected to the active roller 224 by belts.

[0048] The pump air assembly 23 includes a piston cylinder 231 fixedly connected to the upper side of the inner wall at the top of the reaction box 21, a piston plate 232 is slidably connected to the inside of the piston cylinder 231, and a rack 227 is fixedly connected between the piston plates 232, and the rack 227 is located between the two groups of fan gears 226, and the piston cylinder 231 is fixedly connected to an air intake shell 233 and an exhaust shell 234 at the upper and lower sides near the edge of the reaction box 21, and the air intake shell 233 and the exhaust shell 234 are connected to the interior of the piston cylinder 231, a first fixing rod 2331 is fixedly connected to the lower part of the interior of the air intake shell 233, a second spring 2332 is fixedly connected to the top of the first fixing rod 2331, and a first sealing plate 2333 is fixedly connected to the top of the second spring 2332, and a second fixing rod 2341 is fixedly connected to the lower part of the interior of the exhaust shell 234, a third spring 2342 is fixedly connected to the top of the second fixing rod 2341, and a second sealing plate 2343 is fixedly connected to the top of the third spring 2342.

[0049] The tops of the two groups of air inlet shells 233 are respectively connected to the first smoke outlet pipe 112 through the second connecting pipe 212 and the first connecting pipe 211, one side of the reaction box 21 is fixedly connected with an exhaust pipe 213, and a partition 2132 is fixedly connected to the middle of the exhaust pipe 213 on one side close to the reaction box 21, an exhaust hole 2131 is provided on the top of the exhaust pipe 213, and a gas detector 214 is provided on the other end of the exhaust pipe 213. The pump air assembly 23 also includes a first connecting pipe 235 fixedly connected to the bottom of the exhaust shell 234, and the bottom of the first connecting pipe 235 is fixedly connected to the second connecting pipe 236, and the second connecting pipe 236 is evenly distributed with air holes 237.

[0050] Specifically, when the double-headed motor 131 rotates, the second bevel gear 222 is driven to rotate through the second end gear 221, and the second bevel gear 222 drives the active roller 224 through the transmission rod 223, and then drives the transmission roller 225 to rotate. When the transmission roller 225 drives the two sets of fan-shaped gears 226 to rotate, the rack 227 reciprocates left and right, and the rack 227 drives the two sets of piston plates 232 to move left and right inside the two sets of piston cylinders 231. When the piston plate 232 moves inward, the first outlet is pushed through the air intake housing 233. The smoke inside the smoke pipe 112 is sucked into the piston cylinder 231. When the piston plate 232 moves outward, the smoke is evenly transported to the sodium hydroxide solution through the exhaust shell 234, the first connecting pipe 235 and the second connecting pipe 236, and finally through the air hole 237, thereby completing the purification of sulfur dioxide and nitrogen dioxide. The smoke finally surrounds the bottom of the partition 2132 and is discharged from the exhaust hole 2131. During the discharge process, it is detected by the gas detector 214, thereby achieving purification during the exhaust process.

[0051] In order to solve the technical problem that when the solution needs to be replaced after the reaction, the solution that has completed the reaction needs to be discharged before filling, and the whole process takes a long time, such as Figure 12-13 As shown, the following preferred technical solutions are provided:

[0052] The liquid exchange mechanism 3 includes a liquid storage tank 31, a pre-storage tank 32, a second drive assembly 33 and a liquid discharge assembly 34. The liquid storage tank 31 is filled with sodium hydroxide solution. The pre-storage tank 32 is fixedly connected to the upper rear end of the reaction tank 21, and the pre-storage tank 32 and the reaction tank 21 are connected through a U-shaped tube 321. The liquid storage tank 31 is fixedly connected to the top of the pre-storage tank 32, and the bottom of the pre-storage tank 32 is fixedly connected with a sealing tube 322. The second drive assembly 33 includes a second telescopic cylinder 331 fixedly connected to the bottom of the pre-storage tank 32, and the output end of the second telescopic cylinder 331 is fixedly connected with a connecting plate 332.

[0053] The drainage component 34 includes a first drainage pipe 342 arranged at the bottom of the reaction box 21 and a second drainage pipe 344 arranged between the liquid storage box 31 and the pre-storage box 32. A first sealing plug 343 is arranged inside the first drainage pipe 342. The drainage component 34 also includes a U-shaped rod 341 fixedly connected to the connecting plate 332. One end of the U-shaped rod 341 passes through the bottom of the first drainage pipe 342 and is fixedly connected to the first sealing plug 343. The other end of the U-shaped rod 341 passes through the pre-storage box 32 and the second drainage pipe 344 and is connected to the second sealing plug 345.

[0054] Specifically, when the gas detector 214 detects that the gas still contains nitrogen dioxide and sulfur dioxide, the second telescopic cylinder 331 retracts so that the U-shaped rod 341 drives the first sealing plug 343 and the second sealing plug 345 to move upward. In the process of discharging the solution inside the reaction box 21, the solution inside the liquid storage tank 31 enters the interior of the pre-storage box 32 through the second drainage pipe 344. When the solution inside the reaction box 21 is completely drained, the solution inside the pre-storage box 32 enters the interior of the reaction box 21 through the U-shaped tube 321. At this time, the solution inside the liquid storage tank 31 is still being filled into the interior of the pre-storage box 32. Compared with the traditional solution delivery method, pre-filling is achieved during the drainage process, and then the solution is filled by the siphon principle, without considering the air pressure factor inside the liquid storage tank 31.

[0055] In order to further better explain the above embodiment, the present invention also provides an implementation scheme, a method for implementing a purification device for incinerator exhaust gas, comprising the following steps:

[0056] Step 1: Connect the second smoke outlet pipe 113 to the smoke exhaust duct of the incinerator. The smoke generated by the incinerator passes through the second smoke outlet pipe 113 and passes through the interior of the first shell 121. Large particles are intercepted by the filter plate 1213 and fall between the inner wall of the conical tube 1215 and the sleeve 1214. Then, the smoke enters the first smoke outlet pipe 112 through the bend pipe 111. Small particles are intercepted by the dust bag 1243. Under the action of the first driving component 13, the first rotating plate 1211 and the second rotating plate 1241 rotate simultaneously. The filter plate 1213 and the dust bag 1243 can be replaced. The extension of the first telescopic cylinder 141 can insert the pin 143 into the hole of the filter plate 1213 to clean the filter plate 1213 and the space between the conical tube 1215 and the sleeve 1214.

[0057] Step 2: The double-headed motor 131 is separated from the first meshing wheel 132 through the clutch box 1311, and the double-headed motor 131 causes the piston plate 232 to reciprocate inside the piston cylinder 231 through the transmission assembly 22. When the piston plate 232 moves inward, the exhaust gas in the first smoke outlet pipe 112 is drawn into the piston cylinder 231. When the piston plate 232 moves outward inside the piston cylinder 231, the exhaust gas is evenly discharged into the sodium hydroxide solution inside the reaction box 21 through the exhaust housing 234, the first connecting pipe 235 and the air hole 237, completing the reaction and absorption of sulfur dioxide and nitrogen dioxide, and finally discharged through the exhaust hole 2131 after being detected by the gas detector 214;

[0058] Step three: When the gas detector 214 detects that the exhaust gas contains nitrogen dioxide and sulfur dioxide gases, the double-headed motor 131 stops, and the second telescopic cylinder 331 retracts through the U-shaped rod 341 to make the first sealing plug 343 leave the first drainage pipe 342, and the second sealing plug 345 leave the second drainage pipe 344, so that the solution in the reaction box 21 is discharged, and the solution in the liquid storage tank 31 enters the pre-storage box 32. When the liquid in the liquid storage tank 31 is completely drained, the second telescopic cylinder 331 extends half the distance, so that the first sealing plug 343 blocks the first drainage pipe 342. At this time, after the solution in the pre-storage box 32 is filled, the solution is quickly injected into the reaction box 21 through the principle of siphoning formed by the U-shaped tube 321. At the same time, the liquid storage tank 31 continues to pour the solution into the pre-storage box 32 until it reaches the appropriate depth, and the second telescopic cylinder 331 extends and resets, thus completing all the implementation steps.

[0059] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0060] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A purification device for incinerator exhaust gas, comprising a filtering mechanism (1) and a purification mechanism (2) and a liquid replacement mechanism (3) arranged on the filtering mechanism (1), characterized in that: The filter mechanism (1) comprises a smoke outlet assembly (11), a filter assembly (12), a first drive assembly (13) and a cleaning assembly (14); the smoke outlet assembly (11) comprises a curved pipe (111); the filter assembly (12) comprises a first housing (121) fixedly connected to the bottom of the curved pipe (111) and a second housing (124) fixedly connected to one side of the curved pipe (111); a first rotating plate (1211) is rotatably connected inside the first housing (121); engaging grooves (1212) are evenly distributed on the first rotating plate (1211); a filter plate (1213) is embedded inside the engaging grooves (1212); a sleeve (1214) is fixedly connected to the bottom of the filter plate (1213); a conical tube (1215) is slidably connected inside the sleeve (1214); and an outer wall of the conical tube (1215) is connected to the sleeve (1214) via a first spring (1216); The second housing (124) is rotatably connected to a second rotating plate (1241) on the inside, mounting tubes (1242) are evenly distributed on the second rotating plate (1241), and dust removal bags (1243) are embedded in the inside of the mounting tubes (1242). The first housing (121) is provided with a first through hole (123) corresponding to the embedding groove (1212), and the first through hole (123) passes through the first housing (121) from top to bottom. One side of the first housing (121) is provided with a first through hole (123) corresponding to the embedding groove (1212). 211), a first slot (122) corresponding to the side of the first shell (121), a second through hole (126) penetrating left and right is provided on the second shell (124), and the second through hole (126) corresponds to the mounting tube (1242), a second slot (125) corresponding to the second rotating plate (1241) is provided on the outer side of the second shell (124), a second smoke outlet pipe (113) is fixedly connected to the bottom of the first shell (121), and the first smoke outlet pipe (112) is fixedly connected to the other side of the second shell (124); The first drive assembly (13) comprises a double-headed motor (131), one side output end of the double-headed motor (131) is fixedly connected to a first meshing wheel (132) via a clutch box (1311), and the first meshing wheel (132) passes through a second slot (125) and is meshedly connected to a second rotating plate (1241), one side of the first meshing wheel (132) is fixedly connected to a first end face gear (133), and the first drive assembly (133) further comprises a fixing seat (134) fixedly connected to an outer wall of the first housing (121), the top of the fixing seat (134) is rotatably connected to a first bevel gear (135) meshed with the first end face gear (133), the bottom of the first bevel gear (135) passes through the fixing seat (134) via a shaft and is connected to a second meshing wheel (136), and the second meshing wheel (136) passes through the first slot (122) and is meshedly connected to the first rotating plate (1211); The cleaning assembly (14) comprises a first telescopic cylinder (141) fixedly connected to the outer wall of the curved pipe (111); a fixed plate (142) is fixedly connected to the bottom of the first telescopic cylinder (141); pins (143) are evenly distributed on the bottom of the fixed plate (142); and the fixed plate (142) corresponds to the first through hole (123); smoke enters the curved pipe (111) through the second smoke outlet pipe (113) and the first shell (121); when passing through the first shell (121), large particles are intercepted by the filter plate (1213) and accumulated between the conical cylinder (1215) and the sleeve (1214), completing a primary filtration; then, the smoke enters the first smoke outlet pipe (112) through the second shell (124); and a secondary filtration is completed inside the second shell (124) through the dust removal bag (1243).

2. The incinerator exhaust gas purification device according to claim 1, characterized in that: The purification mechanism (2) comprises a reaction box (21), and a double-headed motor (131) is fixedly connected to an outer side wall of the reaction box (21). The purification mechanism (2) further comprises a transmission assembly (22) and a pump assembly (23). The transmission assembly (22) comprises a second end face gear (221) fixedly connected to an output end on the other side of the double-headed motor (131). The transmission assembly (22) further comprises a transmission rod (223) rotatably connected to the bottom of the reaction box (21). The bottom of the transmission rod (223) is fixedly connected to a second bevel gear (222) meshing with the second end face gear (221). The top of the transmission rod (223) extends to the interior of the reaction box (21) and is connected to a driving roller (224).

3. The incinerator exhaust gas purification device according to claim 2, characterized in that: The transmission assembly (22) further comprises a sector gear (226) rotatably connected to the front and rear inner walls of the top of the reaction box (21), the bottom of the sector gear (226) being fixedly connected to a transmission roller (225), and the two groups of transmission rollers (225) are connected to the active roller (224) via a belt.

4. The incinerator exhaust gas purification device according to claim 3, characterized in that: The pump assembly (23) comprises a piston cylinder (231) fixedly connected to the upper side of the inner wall of the top of the reaction box (21), the interior of the piston cylinder (231) is slidably connected to a piston plate (232), and a rack (227) is fixedly connected between the piston plates (232), and the rack (227) is located between the two groups of the fan-shaped gears (226), and the piston cylinder (231) is fixedly connected to an air intake shell (233) and an exhaust shell (234) on one side close to the edge of the reaction box (21), and the air intake shell (233) and the exhaust shell (234) are respectively fixedly connected to the piston cylinder (2 The interior of the exhaust housing (234) is connected to that of the exhaust housing (234), the interior of the exhaust housing (2341) is connected to that of the exhaust housing (2341), the interior of the exhaust housing (2341) is connected to that of the exhaust housing (2341), the interior of the exhaust housing (2341) is connected to that of the exhaust housing (2344), the interior of the exhaust housing (234 ...

5. The incinerator exhaust gas purification device according to claim 4, characterized in that: The tops of the two groups of air inlet housings (233) are connected to the first smoke outlet pipe (112) via the second connecting pipe (212) and the first connecting pipe (211), respectively; an exhaust pipe (213) is fixedly connected to one side of the reaction box (21); a partition (2132) is fixedly connected to the middle of the exhaust pipe (213) on one side close to the reaction box (21); an exhaust hole (2131) is provided at the top of the exhaust pipe (213); a gas detector (214) is provided at the other end of the exhaust pipe (213); the air pump assembly (23) further comprises a first connecting pipe (235) fixedly connected to the bottom of the exhaust housing (234); a second connecting pipe (236) is fixedly connected to the bottom of the first connecting pipe (235); and air holes (237) are evenly distributed on the second connecting pipe (236).

6. The incinerator exhaust gas purification device according to claim 2, characterized in that: The liquid replacement mechanism (3) comprises a liquid storage tank (31), a pre-storage tank (32), a second drive assembly (33) and a liquid discharge assembly (34); the liquid storage tank (31) contains a sodium hydroxide solution; the pre-storage tank (32) is fixedly connected to the upper rear end of the reaction tank (21); the pre-storage tank (32) and the reaction tank (21) are connected via a U-shaped tube (321); the liquid storage tank (31) is fixedly connected to the top of the pre-storage tank (32); and a sealing tube (322) is fixedly connected to the bottom of the pre-storage tank (32).

7. The incinerator exhaust gas purification device according to claim 6, characterized in that: The second driving assembly (33) comprises a second telescopic cylinder (331) fixedly connected to the bottom of the pre-storage box (32), and an output end of the second telescopic cylinder (331) is fixedly connected to a connecting plate (332).

8. The incinerator exhaust gas purification device according to claim 7, characterized in that: The liquid discharge assembly (34) comprises a first liquid discharge pipe (342) arranged at the bottom of the reaction box (21) and a second liquid discharge pipe (344) arranged between the liquid storage box (31) and the pre-storage box (32); a first sealing plug (343) is arranged inside the first liquid discharge pipe (342); the liquid discharge assembly (34) further comprises a U-shaped rod (341) fixedly connected to the connecting plate (332); one end of the U-shaped rod (341) passes through the bottom of the first liquid discharge pipe (342) and is fixedly connected to the first sealing plug (343); the other end of the U-shaped rod (341) passes through the pre-storage box (32) and the second liquid discharge pipe (344) and is connected to the second sealing plug (345).

9. A method for implementing the incinerator exhaust gas purification device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: The second smoke outlet pipe (113) is connected to the smoke exhaust duct of the incinerator. The smoke generated by the incinerator passes through the second smoke outlet pipe (113) and passes through the interior of the first shell (121). Large particles are intercepted by the filter plate (1213) and fall between the inner wall of the conical tube (1215) and the sleeve (1214). The smoke then passes through the curved pipe (111) and enters the first smoke outlet pipe (112). Small particles are intercepted by the dust bag (1243). Under the action of the first driving component (13), the first rotating plate (1211) and the second rotating plate (1241) rotate simultaneously. The filter plate (1213) and the dust bag (1243) can be replaced. The extension of the first telescopic cylinder (141) can insert the pin (143) into the hole of the filter plate (1213) to clean the filter plate (1213) and clean the space between the conical tube (1215) and the sleeve (1214). S2: The double-headed motor (131) is separated from the first meshing wheel (132) through the clutch box (1311), and the double-headed motor (131) causes the piston plate (232) to reciprocate inside the piston cylinder (231) through the transmission assembly (22). When the piston plate (232) moves inward, the exhaust gas in the first smoke outlet pipe (112) is drawn into the piston cylinder (231). When the piston plate (232) moves outward inside the piston cylinder (231), the exhaust gas is evenly discharged into the sodium hydroxide solution inside the reaction box (21) through the exhaust housing (234), the first connecting pipe (235) and the air vent (237), thereby completing the reaction and absorption of sulfur dioxide and nitrogen dioxide. Finally, the exhaust gas is discharged through the exhaust hole (2131) after being detected by the gas detector (214); S3: When the gas detector (214) detects that the exhaust gas contains nitrogen dioxide and sulfur dioxide, the double-headed motor (131) stops, and the second telescopic cylinder (331) retracts through the U-shaped rod (341) so that the first sealing plug (343) leaves the first liquid discharge pipe (342), and the second sealing plug (345) leaves the second liquid discharge pipe (344), and the solution in the reaction box (21) is discharged, and the solution in the liquid storage box (31) enters the pre-storage box (32). When the solution in the liquid storage box (31) After all the liquid is drained, the second telescopic cylinder (331) is extended half the distance, so that the first sealing plug (343) blocks the first liquid discharge pipe (342). At this time, after the solution in the pre-storage box (32) is filled, the solution is quickly injected into the reaction box (21) through the principle of siphoning formed by the U-shaped tube (321). At the same time, the liquid storage box (31) continues to pour the solution into the pre-storage box (32) until it reaches a suitable depth. The second telescopic cylinder (331) is extended and reset, and all the implementation steps are completed.

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