CN112283710A

CN112283710A - Burn burning furnace heat recovery cyclic utilization device at plateau environmental protection efficient

Info

Publication number: CN112283710A
Application number: CN202011150432.2A
Authority: CN
Inventors: 益西罗卜; 夏宇; 彭万清; 索郎仁青
Original assignee: Sichuan Libaichuan Technology Co ltd
Current assignee: Sichuan Libaichuan Technology Co ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-01-29
Anticipated expiration: 2040-11-16
Also published as: CN112283710B

Abstract

The invention discloses an environment-friendly and efficient device for recycling heat of an incinerator on a plateau, which comprises a magnetic separation device, a crushing device, the incinerator, a waste heat boiler and a conveying device, wherein the incinerator is divided into a secondary combustion chamber and a main combustion chamber from top to bottom by a partition plate, a plurality of high-temperature carbon silicon tubes with openings at two ends are fixedly arranged on the partition plate in a penetrating mode, the high-temperature carbon silicon tubes are spiral, a flame port is formed in one side of the secondary combustion chamber, a combustion nozzle is arranged on the inner side of the flame port, a flue gas pipe is arranged at the top of the secondary combustion chamber, one end, far away from the combustion nozzle, of the flue gas pipe is communicated with the main combustion chamber, the flue gas pipe is communicated with an internal combustion cavity of the waste heat boiler through the waste heat pipe, a flow regulating valve is arranged on the waste heat pipe, the internal. The garbage is sufficiently combusted in a circulating combustion mode, heat of high-temperature flue gas generated by the garbage is recycled, the energy utilization rate is improved, and the garbage is more sufficiently combusted.

Description

Burn burning furnace heat recovery cyclic utilization device at plateau environmental protection efficient

Technical Field

The invention relates to the technical field of waste incineration, in particular to an environment-friendly and efficient heat recycling device of an incinerator on a plateau.

Background

The garbage incineration is a garbage treatment mode which is widely applied, the garbage incineration is to pour the garbage into an incinerator for combustion, the released heat energy can be used for heat supply or power generation, the waste gas is discharged after purification, a small amount of residual residues are discharged for landfill or other purposes, and the incineration treatment technology is characterized by large treatment capacity, good volume reduction, thorough harmlessness and heat energy recovery, so that the incineration treatment of the garbage is an effective treatment mode of harmlessness, reduction and recycling. When the garbage is burnt, a large amount of high-temperature flue gas is generated, the high-temperature flue gas contains a large amount of particles which are not fully burnt, the existing incinerator cannot circularly burn the high-temperature flue gas, so that the burning of the garbage is not sufficient, the garbage burning treatment effect is poor, the heat generated by burning is reduced, more burning waste heat is wasted, and meanwhile, the existing incinerator directly purifies and discharges the high-temperature flue gas, cannot circularly utilize the heat of the high-temperature flue gas, and the heat generated by burning the garbage is greatly wasted;

the prior art directly puts into burning in the incinerator with rubbish, does not carry out the preliminary treatment to rubbish, because the moisture content in rubbish is more to cause the influence to the burning of rubbish, make the burning of rubbish insufficient, contain the magnetic object in the rubbish simultaneously, do not screen out the magnetic object when burning rubbish, lead to the waste of resource.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide an environment-friendly and efficient device for recycling heat of an incinerator on a plateau, garbage is fully combusted in a circulating combustion mode, the heat of high-temperature flue gas generated by the garbage is recycled, the energy utilization rate is improved, and meanwhile, the garbage is smashed and pretreated before being put into the incinerator, so that the combustion of the garbage becomes more full.

The purpose of the invention is realized by the following technical scheme: the device comprises a magnetic separation device, a crushing device, an incinerator, a waste heat boiler and a conveying device, wherein the magnetic separation device is arranged above the crushing device through a support, a discharge hole of the magnetic separation device is communicated with a feed inlet of the crushing device through a pipeline, an input end of the conveying device is positioned right below the discharge hole of the crushing device, and an output end of the conveying device is positioned right above the feed inlet of the incinerator;

a partition board is fixed in the incinerator and divides the incinerator into a secondary combustion chamber and a main combustion chamber from top to bottom, a feeding pipe is arranged on one side of the incinerator, one end of the feeding pipe is communicated with the main combustion chamber, a feeding hopper is arranged on the other end of the feeding pipe, the feeding hopper is positioned under the output end of the conveying device, a chain grate is arranged in the main combustion chamber, the chain grate is obliquely arranged on the inner wall of the incinerator in a manner that the feeding end is high and the discharging end is low, one end of the feeding pipe, far away from the feeding hopper, is positioned right above the feeding end of the chain grate, a slag discharging channel is arranged between the discharging end of the chain grate and the inner wall of the incinerator, a plurality of high-temperature silicon carbon tubes with openings at two ends are fixedly penetrated through the partition board, a plurality of high-temperature silicon carbon tubes are vertically, a flame port is formed in one side of the secondary combustion chamber, a burner is arranged on the inner side of the flame port, a flue gas pipe is arranged at the top of the secondary combustion chamber and is arranged close to the burner, one end, far away from the burner, of the flue gas pipe is communicated with the main combustion chamber, the flue gas pipe is communicated with an internal combustion cavity of the waste heat boiler through a residual heat pipe, a flow regulating valve is arranged on the residual heat pipe, the internal combustion cavity of the waste heat boiler is connected with a flue gas purification device through a purification pipe, and the purification pipe is communicated with the main combustion chamber through a circulating pipe;

the chain grate comprises a chain grate group, a driving wheel and a driven wheel, wherein the driving wheel and the driven wheel are both rotationally connected with the inner wall of the incinerator, the chain grate group covers the driving wheel and the driven wheel and is driven by the driving wheel to advance at a constant speed to form a chain furnace conveying belt, one end of the driving wheel is connected with a variable-speed driving mechanism, and the variable-speed driving mechanism is arranged on the outer wall of the incinerator;

the variable speed driving mechanism comprises a gearbox, a first shaft, a second shaft and a driving motor, wherein the first shaft and the second shaft are rotatably arranged in the gearbox in a penetrating way through a bearing, the first shaft and the second shaft are arranged in parallel, one end of the first shaft is connected with an output shaft of the driving motor through a coupler, a first duplex sliding gear is arranged on the first shaft and can move along the axial direction of the first shaft, a first gear and a second gear are sequentially fixed on the second shaft from left to right, the number of teeth of the first gear is greater than that of the second gear, the duplex sliding gear consists of a left gear and a right gear, the left gear is meshed with the first gear, the right gear is meshed with the second gear, when the left gear is meshed with the first gear, the right gear is separated from the second gear, and when the right gear is meshed with the second gear, the left gear is separated from the first gear, one end of the second shaft is connected with the driving wheel through a coupler, and a variable speed adjusting device is arranged on the first shaft;

the variable speed adjusting device comprises an electromagnet and a magnet, a shaft shoulder is arranged on a first shaft, the electromagnet is fixed on one side of the shaft shoulder facing the duplex sliding gear, the magnet is fixed on one side of the duplex sliding gear facing the shaft shoulder, a spring is sleeved on the first shaft, two ends of the spring are respectively connected with the shaft shoulder and the duplex sliding gear, when the spring is in a normal state, a right gear on the duplex sliding gear is meshed with the second gear, when the electromagnet is magnetically attracted with the magnet, the spring is in a compressed state, and at the moment, a left gear on the duplex sliding gear is meshed with the first gear;

the magnetic separation device comprises a magnetic separation box, a magnetic separation device is arranged in an inner cavity of the magnetic separation box, a garbage feeding hopper extending to the inner cavity is arranged at the top of the magnetic separation box, the garbage feeding hopper is positioned on one side of the magnetic separation device, a discharging device is arranged on the other side of the magnetic separation device, the magnetic separation device comprises a rotating shaft and a magnetic separation roller, the rotating shaft is rotatably arranged on the magnetic separation box in a penetrating mode, and the magnetic separation roller is fixed on the rotating shaft;

the bottom and the side wall of the magnetic separation box are respectively provided with a discharge port and a magnetic outlet, the discharging device comprises a scraper, one end of the scraper is fixed in the magnetic outlet, and the other end of the scraper extends to the magnetic separation roller and is in contact with the magnetic separation roller;

the crushing device comprises a crushing box, a feed inlet is formed in one side of the top of the crushing box, a crushing mechanism is arranged in the crushing box and comprises a crushing shaft and crushing blades, the crushing shaft is rotatably connected with the crushing box and is vertically arranged, a plurality of crushing blades are fixed on the crushing shaft along the length direction, one end of the crushing shaft is connected with an output shaft of a motor I arranged at the top of the crushing box, a crushing conveying mechanism is arranged below the crushing mechanism, a discharge pipe is communicated with one side of the crushing box and is positioned on a conveying path of the crushing conveying mechanism, and the discharge pipe is positioned right above an input end of the conveying device;

smash transport mechanism includes conveying axle and spiral transfer blade, the conveying axle with smash the case and rotate and connect, the conveying axle with smash the perpendicular setting of axle, the epaxial spiral transfer blade that is fixed with of conveying, spiral transfer blade's outer fringe is furnished with and is used for kibbling blade, the one end and the setting of conveying axle are in smash two connections of motor of incasement wall.

Furthermore, the chain grate is sequentially provided with a drying grate, a combustion grate and an after-burning grate from a feeding end to a discharging end, lower ash hoppers are arranged below the drying grate, the combustion grate and the after-burning grate, and air inlets are formed in the side walls of the lower ash hoppers.

Further, flow control valve includes valve body, revolves cutter unit spare and drive arrangement, one side intercommunication of valve body has charge-in pipeline, the bottom intercommunication of valve body has ejection of compact pipeline, rotatable being provided with in the valve body revolves cutter unit spare, revolve cutter unit spare one end with drive arrangement connects, revolve cutter unit spare through rotatory change ejection of compact pipeline's opening size, revolve cutter unit spare the center of rotation with the axis collineation of valve body.

Further, the rotary cutter component comprises an arc rotary cutter and a connecting plate, the connecting plate is perpendicular to the axis of the valve body, the arc rotary cutter is fixed to one end of the connecting plate, and when the arc rotary cutter rotates to the lowest position, the arc rotary cutter is in outer arc surface fit with the top of the discharge pipeline.

Further, the driving device comprises a motor and a rotating shaft, the rotating shaft is rotatably arranged in the valve body in a penetrating mode, one end of the rotating shaft is connected with the center of the connecting plate, and the other end of the rotating shaft is connected with an output shaft of the motor.

Furthermore, the flue gas purification device comprises a dust removal box and a cooling disinfection box, one side of the dust removal box is provided with an air inlet communicated with the purification pipe, the top of the dust removal box is provided with a gas collecting hood, the top of the gas collecting hood is communicated with the air inlet end of the cooling disinfection box through an air outlet pipe, the top of the cooling disinfection box is provided with a chimney, and the gas collecting hood is detachably provided with a dust collecting device;

the dust collecting device comprises a mounting plate and a dust collecting plate, wherein the mounting plate is fixed at one end of the dust collecting plate, which is far away from the mounting plate, penetrates from one end of the gas collecting hood and extends to the other end of the gas collecting hood, both sides of the dust collecting plate are in sliding connection with the inner wall of the gas collecting hood, and one end of the dust collecting plate, which is far away from the gas outlet pipe, is provided with a smoke port;

the top of the inner cavity of the gas collecting hood is provided with a filter screen which is positioned under the gas outlet pipe, one end of the gas collecting hood, which is close to the gas outlet pipe, is provided with a cleaning device, and the cleaning device is used for cleaning the filter screen.

Further, be provided with the cooling device that sprays in the cooling disinfect box, the putting of the cooling device that sprays is provided with the active carbon disinfection layer, the cooling device that sprays includes main water pipe, main water pipe is fixed to be worn to establish on the cooling disinfect box, the one end of main water pipe sets up a plurality of shower nozzles, the other end and delivery pipe intercommunication.

Further, cleaning device includes slide bar, pull rod and brush, the slide bar slidable wears to establish dust collecting cover is last, the one end of slide bar extends to in the dust collecting cover and be fixed with the brush, the other end of slide bar is fixed with the pull rod, be fixed with the stopper on the slide bar, the cover is equipped with spring one on the slide bar, spring one is located between stopper and the pull rod, the both ends of spring one respectively with stopper and gas collecting cover fixed connection.

Furthermore, through holes are formed in the left side and the right side of the mounting plate, threaded holes are formed in the gas collecting hood and opposite to the through holes, bolts penetrate through the through holes and are in threaded connection with the threaded holes, gaskets are sleeved on the bolts, and the gaskets are located between the mounting plate and the heads of the bolts.

Further, the crushing box is connected with the air heater through a heating pipe.

The invention has the beneficial effects that:

1. a heat recovery and cyclic utilization device of an incinerator with environmental protection and high efficiency in plateau, when the incinerator is operated primarily, a flow regulating valve is closed, garbage is combusted on a chain grate in a main combustion chamber, high-temperature flue gas generated by combustion enters a secondary combustion chamber through a spiral high-temperature silicon carbon tube, the spiral high-temperature silicon carbon tube increases the movement path of the high-temperature flue gas, so that the combustion time of the high-temperature flue gas is prolonged, after the high-temperature flue gas enters the secondary combustion chamber, unburned particles in the high-temperature flue gas are further combusted through a secondary combustion chamber, the combustion is more sufficient, and finally the high-temperature flue gas returns to the main combustion chamber through a flue gas pipe again, so that the primary large-cycle combustion of the high-temperature flue gas is realized; after the incinerator runs for a period of time, the flow regulating valve is opened, a part of high-temperature flue gas returns to the main combustion chamber through the flue gas pipe to be continuously combusted, the other part of high-temperature flue gas flows into the waste heat boiler through the waste heat pipe, the heat generated by garbage combustion is converted into energy in other forms to be utilized, the energy utilization rate is improved, one part of flue gas thermally converted with the waste heat boiler is purified and then discharged through the purifying device, the other part of flue gas returns to the main combustion chamber again through the circulating pipe to be combusted, the process is small-cycle combustion, the longer the running time of the incinerator is, the longer the high-temperature flue gas cycle combustion time is, the more and more sufficient combustion is realized, the more and more generated heat is generated, the corresponding heat loss is less and less, and the heat.

2. The variable speed actuating mechanism drives the driving wheel to rotate, so that the chain grate group advances at a constant speed, the garbage on the variable speed actuating mechanism is conveyed forwards to be combusted, the speed of the variable speed actuating mechanism is adjustable, the proper conveying speed can be selected according to the humidity degree of the garbage, when the garbage is wet, the variable speed actuating mechanism outputs a small rotating speed, the chain grate group runs at a small speed, the running time of the garbage on a drying grate of the chain grate group is prolonged, the garbage is dried more thoroughly, and the garbage is convenient to combust.

3. When rubbish got into to burn burning furnace burning, earlier carry out the magnetic separation through magnetic separation device, then smash in entering into reducing mechanism, the metallic substance of rubbish the inside is selected to magnetic separation device, makes metallic substance ability reuse, avoids the metal to enter into reducing mechanism simultaneously, causes the damage of crushing blade, and reducing mechanism is effectual smashes rubbish, and the burning of the rubbish of being convenient for makes rubbish enter into burning furnace burning degree higher.

Drawings

FIG. 1 is a schematic view of the overall structure of an environmental-friendly and efficient incinerator heat recycling device in a plateau of the present invention;

FIG. 2 is a schematic view of the internal structure of an incinerator in the heat recycling device of the environmental-friendly and efficient incinerator in the highland according to the present invention;

FIG. 3 is a schematic view of the internal structure of a speed-changing driving mechanism in the heat recovery and recycling device of the high-efficiency environmental-friendly high-altitude incinerator according to the present invention;

FIG. 4 is a schematic view of the internal structure of a magnetic separation device in the heat recovery and recycling device of the environmental-friendly and efficient highland incinerator according to the present invention;

FIG. 5 is a schematic view of the internal structure of a crushing device in the heat recycling device of the environmental-friendly and efficient incinerator in the plateau of the invention;

FIG. 6 is a schematic view of the internal structure of a flow regulating valve in the heat recycling device of the high-efficiency environmental-friendly high-altitude incinerator according to the present invention;

FIG. 7 is a left side view of a flow regulating valve in the heat recycling device of the environmental-friendly and efficient incinerator on a plateau of the present invention;

FIG. 8 is a perspective view of a gas-collecting channel of the heat recycling device of the environmental-friendly and efficient incinerator on a plateau of the present invention;

FIG. 9 is a top view of a gas collecting channel of the heat recycling device of the environmental protection and high efficiency incinerator in a plateau of the present invention;

FIG. 10 is a schematic view of the internal structure of a gas collecting channel in the heat recycling device of the environmental-friendly and efficient incinerator on a plateau of the present invention;

FIG. 11 is an enlarged view taken at A in FIG. 10;

FIG. 12 is a schematic view of the internal structure of a cooling and sterilizing box in the heat recycling device of an incinerator, which is environmentally friendly and efficient in plateau;

in the figure, 1-magnetic separation device, 2-crushing device, 3-incinerator, 4-waste heat boiler, 5-bracket, 6-pipeline, 7-conveyer, 8-clapboard, 9-secondary combustion chamber, 10-main combustion chamber, 11-feeding pipe, 12-chain grate, 13-feeding hopper, 14-high temperature silicon carbon pipe, 15-flame port, 16-burner, 17-flue gas pipe, 18-waste heat pipe, 19-purifying pipe, 20-circulating pipe, 21-chain grate group, 22-driving wheel, 23-driven wheel, 24-slag discharging channel, 25-magnetic separation box, 26-garbage feeding hopper, 27-rotating shaft, 28-magnetic separation roller, 29-magnetic outlet, 30-scraper, 31-crushing box, 32-crushing shaft, 33-crushing blade, 34-motor I, 35-discharging pipe, 36-conveying shaft, 37-spiral conveying blade, 38-motor II, 39-lower ash bucket, 40-valve body, 41-arc rotary cutter, 42-connecting plate, 43-motor, 44-rotating shaft, 45-dust removing box, 46-cooling disinfection box, 47-gas collecting hood, 48-gas outlet pipe, 49-mounting plate, 50-dust collecting plate, 51-smoke port, 52-filter screen, 53-active carbon disinfection layer, 54-main water pipe, 55-spray head, 56-chimney, 57-sliding rod, 58-pull rod, 59-hairbrush, 60-limiting block, 61-spring I, 62-bolt, 63-gasket, 64-heating pipe, 83-gear box, 84-first shaft, 85-second shaft, 86-driving motor, 87-duplex sliding gear, 88-first gear, 89-second gear, 92-electromagnet, 93-magnet, 94-shaft shoulder and 95-spring.

Detailed Description

The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.

As shown in fig. 1 to 12, an incinerator heat recycling device with environmental protection and high efficiency in plateau comprises a magnetic separation device 1, a crushing device 2, an incinerator 3, a waste heat boiler 4 and a conveying device 7, wherein the magnetic separation device 1 is arranged above the crushing device 2 through a support 5, a discharge port of the magnetic separation device 1 is communicated with a feed port of the crushing device 2 through a pipeline 6, an input end of the conveying device 7 is positioned right below the discharge port of the crushing device 2, and an output end of the conveying device 7 is positioned right above the feed port of the incinerator 3;

rubbish carries out the magnetic separation through magnetic separation device 1 earlier, then smash in entering into reducing mechanism 2, rubbish after smashing transports to burning furnace 3 in through transmission 7 and burns, magnetic separation device 1 is used for selecting the metallics of rubbish the inside, make metallics ability reuse, avoid the metal to enter into reducing mechanism 2 simultaneously, cause the damage to the mechanism in reducing mechanism 2, reducing mechanism 2 is effectual smashes rubbish, the burning of the rubbish of being convenient for, it is higher to make rubbish enter into burning furnace 3 internal combustion degree.

As shown in fig. 2, a partition plate 8 is fixed in the incinerator 3, the partition plate 8 divides the incinerator 3 into a secondary combustion chamber 9 and a main combustion chamber 10 from top to bottom, a feeding pipe 11 is arranged on one side of the incinerator 3, one end of the feeding pipe 11 is communicated with the main combustion chamber 10, the other end is provided with a feeding hopper 13, the feeding hopper 13 is positioned under the output end of the conveyer 7, a chain grate 12 is arranged in the main combustion chamber 10, the chain grate 12 is arranged on the inner wall of the incinerator 3 in an inclined manner with a high feeding end and a low discharging end, one end of the feeding pipe 11 far away from the feeding hopper 13 is positioned right above the feeding end of the chain grate 12, a slag discharge channel 24 is arranged between the discharging end of the chain grate 12 and the inner wall of the incinerator 3, a plurality of high-temperature carbon silicon tubes 14 with openings at both ends are fixedly penetrated through the partition plate 8, the plurality of high-temperature carbon silicon tubes 14 are, a combustion nozzle 16 is arranged on the inner side of the flame opening 15, a flue gas pipe 17 is arranged at the top of the secondary combustion chamber 9, the flue gas pipe 17 is arranged close to the combustion nozzle 16, one end, far away from the combustion nozzle 16, of the flue gas pipe 17 is communicated with the main combustion chamber 10, the flue gas pipe 17 is communicated with an internal combustion cavity of the waste heat boiler 4 through a waste heat pipe 18, a flow regulating valve is arranged on the waste heat pipe 18, the internal combustion cavity of the waste heat boiler 4 is connected with a flue gas purification device through a purification pipe 19, and the purification pipe 19 is communicated with the main combustion chamber 10 through a circulating pipe;

when the incinerator is in primary operation, the flow regulating valve is closed, the garbage is conveyed into the feed hopper 13 by the conveying device 7 and falls into the feed end of the chain grate 12 through the feed pipe 11, the garbage is conveyed forwards by the chain grate 12 and is combusted in the main combustion chamber 10, high-temperature flue gas generated by combustion enters the secondary combustion chamber 9 through the spiral high-temperature silicon carbon tube 14, the spiral high-temperature silicon carbon tube 14 increases the movement path of the high-temperature flue gas and increases the combustion time of the high-temperature flue gas, after the high-temperature flue gas enters the secondary combustion chamber 9, a combustion tank communicated with the combustion nozzle 16 carries out secondary combustion on the high-temperature flue gas, particles unburnt in the high-temperature flue gas are further combusted, the combustion is more sufficient, finally the high-temperature flue gas returns back into the main combustion chamber 10 through the flue gas pipe 17, the primary large-cycle combustion of the high-temperature flue gas is realized, the combustion, most of the garbage is fully combusted; after the incinerator is operated for a period of time, the flow regulating valve is opened, a part of high-temperature flue gas returns to the main combustion chamber 10 through the flue gas pipe 17 to be continuously combusted, the other part of high-temperature flue gas flows into the waste heat boiler 4 through the waste heat pipe 18, so that the heat generated by garbage combustion is converted into energy in other forms to be utilized, and the energy utilization rate is improved, and it is worth noting that the waste heat boiler 4 can be replaced by other devices, heat supply is performed through the high-temperature flue gas, one part of the flue gas thermally converted with the waste heat boiler 4 is purified through the purification device and then discharged, the other part of the flue gas returns to the main combustion chamber 10 through the circulating pipe 20 to be combusted, the process is small-cycle combustion, and as the small-cycle combustion process is continuously performed in different periods, the time for circulating combustion of the high-temperature flue gas is longer as the operation, the generated heat is more and more, the corresponding heat loss is less and less, and the utilization rate of the heat is higher and higher.

Flue gas pipe 17 intercommunication is in the one end that is close to burner tip 16, high temperature flue gas will be direct when passing through flue gas pipe 17 and burner tip 16 spun flame contact, thereby make the combustion effect of high temperature flue gas in two combustion chambers 9 better, burner tip 16 setting is kept away from to high temperature silicon carbon tube 14 simultaneously, high temperature flue gas enters into two combustion chambers 9 from high temperature silicon carbon tube 14 in, the residence time of high temperature flue gas in two combustion chambers 9 has been increased, thereby make the granule at utmost of unburnt burning in two combustion chambers 9 in the high temperature flue gas, combustion efficiency and the combustion effect of high temperature flue gas in two combustion chambers 9 have been improved.

As shown in fig. 2, the chain grate 12 comprises a chain grate group 21, a driving wheel 22 and a driven wheel 23, the driving wheel 22 and the driven wheel 23 are both rotatably connected with the inner wall of the incinerator 3, the chain grate group 21 covers the driving wheel 22 and the driven wheel 23 and is driven by the driving wheel 22 to advance at a constant speed to form a chain grate conveyor belt, one end of the driving wheel 22 is connected with a variable speed driving mechanism, and the variable speed driving mechanism is arranged on the outer wall of the incinerator 3;

the chain grate 12 is sequentially provided with a drying grate, a combustion grate and an after-burning grate from a feeding end to a discharging end, lower ash hoppers 39 are arranged below the drying grate, the combustion grate and the after-burning grate, and air inlets are formed in the side walls of the lower ash hoppers 39.

The chain grate group 21, the driving wheel 22 and the driven wheel 23 form a chain grate conveyor belt, and the garbage on the chain grate conveyor belt is conveyed forwards and sequentially passes through the drying grate, the combustion grate and the burning grate; the variable speed driving mechanism drives the driving wheel 22 to rotate, so that the chain grate group 21 moves forwards at a constant speed, the garbage on the chain grate group is conveyed forwards for combustion, the burnt ash falls into the lower ash hopper 39 or falls from the slag discharge channel 24, the speed of the variable speed driving mechanism can be adjusted, so that a proper conveying speed can be selected according to the humidity degree of the garbage, when the garbage is moist, the variable speed driving mechanism outputs a small rotating speed, the chain grate group 21 runs at a small speed, the running time of the garbage on a drying grate of the chain grate group is prolonged, the garbage is dried more thoroughly, the garbage is convenient to combust, and the combustion effect of the garbage in the main combustion chamber 10 is better; when the humidity of the garbage is not high, the variable speed driving mechanism outputs a larger rotating speed, so that the chain grate group 21 is conveyed at a higher speed, and the combustion efficiency of the garbage is improved while the combustion effect of the garbage is not influenced.

As shown in fig. 3, the speed change driving mechanism includes a transmission case 83, a first shaft 84, a second shaft 85 and a driving motor 86, the first shaft 84 and the second shaft 85 are rotatably disposed in the transmission case 83 through bearings, the first shaft 84 and the second shaft 85 are disposed in parallel, one end of the first shaft 84 is connected to an output shaft of the driving motor 86 through a coupling, a first dual sliding gear 87 is disposed on the first shaft 84, the first dual sliding gear 87 can move along an axial direction of the first shaft 84, a first gear 88 and a second gear 89 are sequentially fixed on the second shaft 85 from left to right, the number of teeth of the first gear 88 is greater than that of the second gear 89, the first dual sliding gear 87 is composed of a left gear and a right gear, the left gear is engaged with the first gear 88, the right gear is engaged with the second gear 89, when the left gear is engaged with the first gear 88, the right gear is disengaged with the second gear 89, the left gear is disengaged with the first gear 88, one end of the second shaft 85 is connected to, a variable speed adjusting device is arranged on the first shaft 84;

the driving motor 86 drives the first shaft 84 to rotate, the first shaft 84 drives the second shaft 85 to rotate through the meshing of the first gear 88 or the second gear 89 and the dual sliding gear 87, the second shaft drives the driving wheel 22 to rotate through the coupler, thereby driving the chain grate group 21 to run, and according to the gear transmission ratio, the ratio of the number of teeth of the two gears is equal to the inverse ratio of the speed, therefore, on the premise that the number of teeth of the first gear 88 is greater than that of the second gear 89, when the right gear of the second joint sliding gear 87 is meshed with the second gear 89, the second shaft 85 has a larger rotating speed, thereby leading the chain grate group 21 to have larger transmission speed, when the left gear on the duplex sliding gear 87 is meshed with the first gear 88, the second shaft 85 has smaller rotating speed, therefore, the chain grate group 21 has a lower conveying speed, the retention time of the garbage on the drying grate is increased, the garbage is more sufficiently dried, and the combustion effect of the garbage in the main combustion chamber 10 and the combustion degree of the garbage are better.

The speed change adjusting device comprises an electromagnet 92 and a magnet 93, a shaft shoulder 94 is arranged on a first shaft 84, the electromagnet 92 is fixed on one side of the shaft shoulder 94, which faces the duplex sliding gear 87, the magnet 93 is fixed on one side of the duplex sliding gear 87, which faces the shaft shoulder 94, a spring 95 is sleeved on the first shaft 84, two ends of the spring 95 are respectively connected with the shaft shoulder 94 and the duplex sliding gear 87, when the spring 95 is in a normal state, a right gear on the duplex sliding gear 87 is meshed with a second gear 89, when the electromagnet 92 is electromagnetically attracted with the magnet 93, the spring 95 is in a compressed state, and a left gear on the duplex sliding gear 87 is meshed with a first gear 88;

in specific implementation, in a normal state, the spring 95 is in a normal state, at this time, the right gear on the duplex sliding gear 87 is meshed with the second gear 89, after the incinerator 3 is started, the driving motor 86 works, the chain grate group 21 has a large transmission speed, when the garbage to be burned is wet, the electromagnet 92 is electrified and electromagnetically attracted by the magnet 93, the duplex sliding gear 87 is driven to move on the first shaft 84, the left gear on the duplex sliding gear 87 is meshed with the first gear 88, and at this time, the spring 95 is compressed, so that the chain grate group 21 has a small transmission speed, and the drying time of the garbage is prolonged.

As shown in fig. 4, the magnetic separation device 1 includes a magnetic separation box 25, a magnetic separation device is arranged in an inner cavity of the magnetic separation box 25, a garbage feed hopper 26 extending to the inner cavity is arranged at the top of the magnetic separation box 25, the garbage feed hopper 26 is positioned at one side of the magnetic separation device, a discharge device is arranged at the other side of the magnetic separation device, the magnetic separation device includes a rotating shaft 27 and a magnetic separation roller 28, the rotating shaft 27 is rotatably arranged on the magnetic separation box 25 in a penetrating manner, and the magnetic separation roller 28 is fixed on the;

the bottom and the side wall of the magnetic separation box 25 are respectively provided with a discharge port and a magnetic outlet 29, the discharging device comprises a scraper 30, one end of the scraper 30 is fixed in the magnetic outlet 13, and the other end of the scraper extends to the magnetic separation roller 28 and is contacted with the magnetic separation roller 28;

in rubbish enters into magnetic separation case 25 from rubbish feeder hopper 26, rotation axis 27 is connected with rotating electrical machines, drives rotation axis 27 through rotating electrical machines and rotates, and rotation axis 27 drives magnetic separation cylinder 28 and rotates, and the material falls on magnetic separation cylinder 28, and magnetic separation cylinder 28 adsorbs the magnetic object in the material to 30 departments of scraper blade turn to, the magnetic object on scraper blade 30 will magnetic separation cylinder 28 is scraped, and is discharged by magnetism export 29. It should be noted that the rotation direction of the magnetic separation drum 28 is as shown in fig. 4, that is, the magnetic separation drum 28 needs to rotate the magnetic objects above the scrapers 30 to discharge the magnetic objects from the magnetic outlet 29, and the garbage after magnetic separation enters the crushing device 2 through the discharge port via the pipeline 6 to perform the garbage crushing operation.

As shown in fig. 5, the crushing device 2 includes a crushing box 31, a feed inlet is formed in one side of the top of the crushing box 31, a crushing mechanism is arranged in the crushing box 31, the crushing mechanism includes a crushing shaft 32 and crushing blades 33, the crushing shaft 32 is rotatably connected with the crushing box 31, the crushing shaft 32 is vertically arranged, a plurality of crushing blades 33 are fixed on the crushing shaft 32 along the length direction, one end of the crushing shaft 32 is connected with an output shaft of a motor one 34 arranged at the top of the crushing box 31, a crushing conveying mechanism is arranged below the crushing mechanism, a discharge pipe 35 is communicated with one side of the crushing box 31, the discharge pipe 35 is positioned on a conveying path of the crushing conveying mechanism, and the discharge pipe 35 is positioned right above an input end of the conveying device 7;

the crushing conveying mechanism comprises a conveying shaft 36 and spiral conveying blades 37, the conveying shaft 36 is rotatably connected with the crushing box 31, the conveying shaft 36 is perpendicular to the crushing shaft 32, the spiral conveying blades 37 are fixed on the conveying shaft 36, the outer edges of the spiral conveying blades 37 are supplemented with cutting edges for crushing, and one end of the conveying shaft 36 is connected with a second motor 38 arranged on the outer wall of the crushing box 31. Because contain sewage in the rubbish, lead to the mutual adhesion of rubbish, difficult ejection of compact improves discharge efficiency through smashing transport mechanism.

Motor one 34 drives crushing shaft 32 and rotates, smash rubbish through crushing blade 33 on the crushing shaft 32, two 38 drive transmission shafts 36 of motor rotate simultaneously, thereby smash the rubbish of smashing the case 31 bottom through helical conveying blade 37, make the crushing effect of rubbish better, smash the completion back, close motor one 34, two 38 drive helical conveying blade 37 of motor continue to rotate, convey rubbish to discharging pipe 35 through helical conveying blade 37, thereby make the ejection of compact of rubbish faster.

Further, the pulverizing box 31 is connected to an air heater through a heating pipe 64. The garbage is primarily dried by the hot air blower to reduce the drying time of the garbage on the drying grate, so that the chain grate group 21 can greatly convey the garbage to improve the conveying efficiency of the garbage.

The conveying device 7 is a conveying belt with a low feeding end and a high discharging end, and conveys the crushed garbage into the feeding hopper 13 through a conveying belt pair.

Further, as shown in fig. 6 and 7, the flow regulating valve includes a valve body 40, a rotary cutter assembly and a driving device, one side of the valve body 40 is communicated with a feeding pipeline, the bottom of the valve body 40 is communicated with a discharging pipeline, the rotary cutter assembly is rotatably arranged in the valve body 40, one end of the rotary cutter assembly is connected with the driving device, the rotary cutter assembly changes the opening size of the discharging pipeline through rotation, and the rotation center of the rotary cutter assembly is collinear with the axis of the valve body 40.

High-temperature flue gas materials enter the valve body 40 from the feeding pipeline and are discharged from the discharge pipeline, and the rotary cutter assembly is driven to rotate by the driving device, so that the position state of the rotary cutter assembly is changed to shield the opening of the discharge pipeline to different degrees, the size of the opening of the discharge pipeline can be adjusted, and the flow of the high-temperature flue gas is controlled; because the axis of the valve body 40 can be designed to be horizontal or inclined when the valve body 40 is actually used, in order to ensure that the rotary cutter component does not collide with the inner wall of the valve body 40 in the rotating process, the rotary center of the rotary cutter component and the axis of the valve body 40 are arranged in a collinear way, so that the rotating stability of the rotary cutter component is ensured, and the valve body 40 and the rotary cutter component are prevented from being damaged; the outer surface of revolving knife subassembly has great clearance apart from the internal surface of valve body 40, there is the high temperature large granule solid material of insufficient combustion in the high temperature flue gas, because the mobility restriction of high temperature large granule solid material, locate to form the free space of no material around this clearance, this space can dodge the space for the material provides when revolving knife subassembly rotates, avoid the granular material by the extrusion by force, the problem that revolving knife subassembly operation was hindered by the material card has just also been avoided, the condition that the card hinders appears in the avoidance, even the card hinders appears, the revolving knife subassembly of reversal, can clear away the card and hinder the thing.

Further, the rotary cutter component comprises an arc rotary cutter 41 and a connecting plate 42, the connecting plate 42 is perpendicular to the axis of the valve body 40, the arc rotary cutter 41 is fixed at one end of the connecting plate 42, and when the arc rotary cutter 41 rotates to the lowest part, the outer arc surface of the arc rotary cutter 41 is matched with the top of the discharge pipeline.

Further, the driving device comprises a motor 43 and a rotating shaft 44, the rotating shaft 44 is rotatably inserted into the valve body 40, one end of the rotating shaft 44 is connected with the center of the connecting plate 42, and the other end of the rotating shaft is connected with an output shaft of the motor 43.

The motor 43 is started, the motor 43 drives the rotating shaft 44 to rotate, so that the arc-shaped rotary knife 41 on the connecting plate 42 is driven to rotate, the shielding state of the opening of the discharge pipeline is changed through the rotation of the arc-shaped rotary knife 41, when the arc-shaped rotary knife 41 rotates to the lowest position, the outer arc surface of the arc-shaped rotary knife 41 is contacted with the top of the discharge pipeline, so that the top surface of the discharge pipeline and the arc-shaped rotary knife 41 form a matching surface for sealing material flow, and the complete blocking of high-temperature smoke is realized; because the collision of arc rotary cutter 41 and material is comparatively frequent, need to guarantee the intensity of arc rotary cutter 41 to improve the life of arc rotary cutter 41, consequently, arc rotary cutter 41 needs to adopt heat-resisting wear-resisting material, for example: silicon carbide, boron carbide, cemented carbide, and the like.

Further, as shown in fig. 8 to 12, the flue gas purification device includes a dust removal box 45 and a cooling sterilization box 46, an air inlet communicated with the purification pipe 19 is formed in one side of the dust removal box 45, a gas collection hood 47 is arranged at the top of the dust removal box 45, the top of the gas collection hood 47 is communicated with an air inlet end of the cooling sterilization box 46 through an air outlet pipe 48, a chimney 56 is arranged at the top of the cooling sterilization box 46, and a dust collection device is detachably mounted on the gas collection hood 47;

after the high-temperature flue gas exchanges heat with the waste heat boiler 4, part of the flue gas is purified by the flue gas purification device and then discharged, dust in the flue gas is removed by the dust removal box 45, then the flue gas is cooled and sterilized by the cooling and sterilizing box 46, and finally the flue gas is discharged into the atmosphere from the chimney 56.

Further, as shown in fig. 8, the dust collecting device includes a mounting plate 49 and a dust collecting plate 50, the mounting plate 49 is fixed at one end of the dust collecting plate 50, which is far away from the mounting plate 49, penetrates from one end of the gas collecting hood 47 and extends to the other end of the gas collecting hood 47, both sides of the dust collecting plate 50 are slidably connected with the inner wall of the gas collecting hood 47, and one end of the dust collecting plate 50, which is far away from the gas outlet pipe 48, is provided with a smoke port 51;

furthermore, a filter screen 52 is arranged at the top of the inner cavity of the gas collecting hood 47, the filter screen 52 is located right below the gas outlet pipe 48, and a cleaning device is arranged at one end of the gas collecting hood 47 close to the gas outlet pipe 48 and used for cleaning the filter screen 52.

Some dust in the flue gas collide the bottom of dust collecting plate 50, fall in dust removal case 45 at the in-process of collision, another part flue gas enters into gas collecting channel 47 in from flue gas mouth 51, filter the dust in the flue gas through filter screen 52, filterable dust falls on dust collecting plate 50, discharge dust in unison through dismantling dust collecting plate 50, thereby avoided the dust to cause the influence to the atmosphere, wash filter screen 52 through cleaning device, avoid filter screen 52 to cause the jam.

Further, as shown in fig. 12, a spraying cooling device is arranged in the cooling and disinfecting box 46, an active carbon disinfecting layer 53 is arranged on the spraying cooling device, the spraying cooling device comprises a main water pipe 54, the main water pipe 54 is fixedly arranged on the cooling and disinfecting box 46 in a penetrating manner, one end of the main water pipe 54 is provided with a plurality of spray heads 55, and the other end of the main water pipe is communicated with a water supply pipe.

The flue gas is cooled through the spray head 55, meanwhile, small particle dust in the flue gas falls along with cold water, the gas in the flue gas is disinfected through the activated carbon disinfection layer 53 and finally discharged from the chimney 56, and the safe and environment-friendly emission of the high-temperature flue gas is realized.

Further, the cleaning device comprises a sliding rod 57, a pull rod 58 and a brush 59, wherein the sliding rod 57 is slidably arranged on the dust collection cover 47 in a penetrating manner, one end of the sliding rod 57 extends into the dust collection cover 47 and is fixed with the brush 59, the other end of the sliding rod 57 is fixed with the pull rod 58, a limiting block 60 is fixed on the sliding rod 57, a first spring 61 is sleeved on the sliding rod 57, the first spring 61 is positioned between the limiting block 60 and the pull rod 58, and two ends of the first spring 61 are respectively fixedly connected with the limiting block 60 and the gas collection cover 47.

In specific implementation, the pull rod 58 is pushed close to the gas collecting hood 47, so that the pull rod 58 drives the sliding rod 57 to move inwards, the brush 59 is contacted with the filter screen 52, the pull rod 58 is pushed repeatedly, the brush 59 reciprocates on the filter screen 52, dust and plastic particles on the filter screen 52 are effectively brushed down, the filter screen 52 is prevented from being blocked, and after the pull rod 58 is loosened, the cleaning device is restored to the original position under the action of the first spring 61.

Further, the through-hole has all been seted up to the left and right sides of mounting panel 49, and the gas collecting channel 47 is gone up and is seted up threaded hole for the department with the through-hole, and bolt 62 wears to establish in the through-hole and with screw hole threaded connection, the cover is equipped with gasket 63 on the bolt 62, and gasket 63 is located between the head of mounting panel 49 and bolt 62.

Slide into to dust cage 47 with the both sides of dust collecting plate 50 in, make the one end that the mounting panel 49 was kept away from to dust collecting plate 50 support tightly on the inner wall that mounting panel 49 one end was kept away from to gas collecting channel 47, then fix dust collecting plate 50 on dust cage 47 through bolt 62 and gasket 63, during the dismantlement, only need with bolt 62 back-out, take out dust collecting plate 50 can, make dust collecting device's installation and dismantlement simple quick more, make tiny particles such as dust can be discharged fast, and the emission efficiency is improved.

The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The environment-friendly and efficient incinerator heat recycling device is characterized by comprising a magnetic separation device (1), a crushing device (2), an incinerator (3), a waste heat boiler (4) and a conveying device (7), wherein the magnetic separation device (1) is arranged above the crushing device (2) through a support (5), a discharge hole of the magnetic separation device (1) is communicated with a feed inlet of the crushing device (2) through a pipeline (6), an input end of the conveying device (7) is located right below the discharge hole of the crushing device (2), and an output end of the conveying device (7) is located right above the feed inlet of the incinerator (3);

a partition plate (8) is fixed in the incinerator (3), the incinerator (3) is divided into a secondary combustion chamber (9) and a main combustion chamber (10) by the partition plate (8) from top to bottom, a feeding pipe (11) is arranged on one side of the incinerator (3), one end of the feeding pipe (11) is communicated with the main combustion chamber (10), a feeding hopper (13) is arranged on the other end of the feeding pipe, the feeding hopper (13) is positioned under the output end of the conveying device (7), a chain type grate (12) is arranged in the main combustion chamber (10), the chain type grate (12) is obliquely arranged on the inner wall of the incinerator (3) in a manner that the feeding end is high and the discharging end is low, one end of the feeding pipe (11) far away from the feeding hopper (13) is positioned right above the feeding end of the chain type grate (12), and a slag discharge channel (24) is arranged between the discharging end of the chain type grate (12) and the inner, the partition board (8) is fixedly provided with a plurality of high-temperature silicon carbon tubes (14) with openings at two ends in a penetrating manner, the high-temperature silicon carbon tubes (14) are uniformly distributed in a vertical array manner, the high-temperature silicon carbon tubes (14) are spiral, one side of the secondary combustion chamber (9) is provided with a flame port (15), the inner side of the flame port (15) is provided with a burner (16), the top of the secondary combustion chamber (9) is provided with a flue gas tube (17), the flue gas tube (17) is close to the burner (16), one end of the burner (16) far away from the flue gas tube (17) is communicated with the main combustion chamber (10), the flue gas tube (17) is communicated with an internal combustion cavity of the waste heat boiler (4) through a waste heat pipe (18), the waste heat pipe (18) is provided with a flow regulating valve, the internal combustion cavity of the waste heat boiler (4) is connected with a flue gas purification device through a purification pipe (19), the purification pipe (19) is communicated with the main combustion chamber (10) through a circulating pipe (20);

the chain grate (12) comprises a chain grate group (21), a driving wheel (22) and a driven wheel (23), wherein the driving wheel (22) and the driven wheel (23) are rotatably connected with the inner wall of the incinerator (3), the chain grate group (21) covers the driving wheel (22) and the driven wheel (23) and is driven by the driving wheel (22) to advance at a constant speed to form a chain grate conveyor belt, one end of the driving wheel (22) is connected with a variable-speed driving mechanism, and the variable-speed driving mechanism is arranged on the outer wall of the incinerator (3);

the variable speed driving mechanism comprises a gearbox (83), a first shaft (84), a second shaft (85) and a driving motor (86), wherein the first shaft (84) and the second shaft (85) are rotatably arranged in the gearbox (83) in a penetrating mode through a bearing, the first shaft (84) and the second shaft (85) are arranged in parallel, one end of the first shaft (84) is connected with an output shaft of the driving motor (86) through a coupler, a first coupling sliding gear (87) is arranged on the first shaft (84), the first coupling sliding gear (87) can move along the axial direction of the first shaft (84), a first gear (88) and a second gear (89) are sequentially fixed on the second shaft (85) from left to right, the number of teeth of the first gear (88) is greater than that of the second gear (89), the second coupling sliding gear (87) is composed of a left gear and a right gear, the left gear is meshed with the first gear (88), the right gear is meshed with the second gear (89), when the left gear is meshed with the first gear (88), the right gear is separated from the second gear (89), when the right gear is meshed with the second gear (89), the left gear is separated from the first gear (88), one end of the second shaft (85) is connected with the driving wheel (22) through a coupler, and a speed change adjusting device is arranged on the first shaft (84);

the variable speed adjusting device comprises an electromagnet (92) and a magnet (93), a shaft shoulder (94) is arranged on the first shaft (84), the electromagnet (92) is fixed on one side of the shaft shoulder (94) facing the double-joint sliding gear (87), the magnet (93) is fixed on one side of the double-joint sliding gear (87) facing the shaft shoulder (94), a spring (95) is sleeved on the first shaft (84), two ends of the spring (95) are respectively connected with the shaft shoulder (94) and the two-joint sliding gear (87), when the spring (95) is in a normal state, the right gear on the double-joint sliding gear (87) is meshed with the second gear (89), when the electromagnet (92) is electromagnetically attracted with the magnet (93), the spring (95) is in a compressed state, and a left gear on the duplex sliding gear (87) is meshed with the first gear (88);

the magnetic separation device (1) comprises a magnetic separation box (25), a magnetic separation device is arranged in an inner cavity of the magnetic separation box (25), a garbage feeding hopper (26) extending to the inner cavity is arranged at the top of the magnetic separation box (25), the garbage feeding hopper (26) is positioned on one side of the magnetic separation device, a discharging device is arranged on the other side of the magnetic separation device, the magnetic separation device comprises a rotating shaft (27) and a magnetic separation roller (28), the rotating shaft (27) is rotatably arranged on the magnetic separation box (25) in a penetrating mode, and the magnetic separation roller (28) is fixed on the rotating shaft (27);

the bottom and the side wall of the magnetic separation box (25) are respectively provided with a discharge port and a magnetic outlet (29), the discharging device comprises a scraper (30), one end of the scraper (30) is fixed in the magnetic outlet (13), and the other end of the scraper extends to the magnetic separation roller (9) and is in contact with the magnetic separation roller (9);

the crushing device (2) comprises a crushing box (31), a feed inlet is arranged on one side of the top of the crushing box (31), a crushing mechanism is arranged in the crushing box (31), the crushing mechanism comprises a crushing shaft (32) and crushing blades (33), the crushing shaft (32) is rotationally connected with the crushing box (31), the crushing shaft (32) is vertically arranged, the crushing shaft (32) is fixed with a plurality of crushing blades (33) along the length direction, one end of the crushing shaft (32) is connected with an output shaft of a motor I (34) arranged at the top of the crushing box (31), a crushing and conveying mechanism is arranged below the crushing mechanism, a discharge pipe (35) is communicated with one side of the crushing box (31), the discharge pipe (35) is positioned on a conveying path of the crushing conveying mechanism, and the discharge pipe (35) is positioned right above the input end of the conveying device (7);

smash transport mechanism includes transmission axle (36) and spiral transfer blade (37), transmission axle (36) with smash case (31) and rotate and connect, transmission axle (36) with smash axle (32) and set up perpendicularly, be fixed with on transmission axle (36) spiral transfer blade (37), the outer fringe benefit of spiral transfer blade (37) is equipped with and is used for kibbling blade, the one end and the setting of transmission axle (36) are in smash two (38) connections of motor of case (31) outer wall.

2. The device for recycling heat of the incinerator on the plateau with the environmental protection and the high efficiency as recited in claim 1, characterized in that the chain grate (12) is sequentially arranged from the feeding end to the discharging end as a drying grate, a burning grate and an after-burning grate, lower ash buckets (39) are arranged below the drying grate, the burning grate and the after-burning grate, and the side wall of the lower ash bucket (39) is provided with an air inlet.

3. The device for recycling heat of the incinerator on the plateau with environmental protection and high efficiency as claimed in claim 1, wherein said flow regulating valve comprises a valve body (40), a rotary cutter assembly and a driving device, one side of said valve body (40) is connected with a feeding pipeline, the bottom of said valve body (40) is connected with a discharging pipeline, said rotary cutter assembly is rotatably arranged in said valve body (40), one end of said rotary cutter assembly is connected with said driving device, said rotary cutter assembly changes the size of the opening of said discharging pipeline by rotation, and the rotation center of said rotary cutter assembly is collinear with the axis of said valve body (40).

4. The device for recycling heat of the incinerator on the plateau with environmental protection and high efficiency as claimed in claim 3, characterized in that said rotary cutter assembly comprises an arc rotary cutter (41) and a connecting plate (42), said connecting plate (42) is arranged perpendicular to the axis of said valve body (40), said arc rotary cutter (41) is fixed on one end of said connecting plate (42), when said arc rotary cutter (41) rotates to the lowest position, the outer arc surface of said arc rotary cutter (41) is matched with the top of said discharge pipe.

5. The incinerator heat recycling device in plateau environment protection high efficiency according to claim 4, characterized by that, the driving device includes a motor (43) and a rotating shaft (44), the rotating shaft (44) is rotatably inserted into the valve body (40), one end of the rotating shaft (44) is connected with the center of the connecting plate (42), and the other end is connected with the output shaft of the motor (43).

6. The device for recycling heat of the incinerator on the plateau in an environment-friendly and efficient manner according to claim 1, wherein the flue gas purification device comprises a dust removal box (45) and a cooling disinfection box (46), one side of the dust removal box (45) is provided with an air inlet communicated with the purification pipe (19), the top of the dust removal box (45) is provided with a gas collecting hood (47), the top of the gas collecting hood (47) is communicated with an air inlet end of the cooling disinfection box (46) through an air outlet pipe (48), the top of the cooling disinfection box (46) is provided with a chimney (56), and a dust collecting device is detachably mounted on the gas collecting hood (47);

the dust collecting device comprises a mounting plate (49) and a dust collecting plate (50), the mounting plate (49) is fixed at one end of the dust collecting plate (50), one end, far away from the mounting plate (49), of the dust collecting plate (50) penetrates from one end of the gas collecting hood (47) and extends to the other end of the gas collecting hood (47), two sides of the dust collecting plate (50) are connected with the inner wall of the gas collecting hood (47) in a sliding mode, and one end, far away from the gas outlet pipe (48), of the dust collecting plate (50) is provided with a smoke port (51);

the top of the inner cavity of the gas collecting hood (47) is provided with a filter screen (52), the filter screen (52) is positioned under the gas outlet pipe (48), one end of the gas collecting hood (47) close to the gas outlet pipe (48) is provided with a cleaning device, and the cleaning device is used for cleaning the filter screen (52).

7. The device for recycling heat of the incinerator in the plateau environment-friendly and high-efficiency manner as claimed in claim 6, wherein a spraying cooling device is arranged in the cooling disinfection box (46), an activated carbon disinfection layer (53) is arranged on the spraying cooling device, the spraying cooling device comprises a main water pipe (54), the main water pipe (54) is fixedly arranged on the cooling disinfection box (46), one end of the main water pipe (54) is provided with a plurality of spray nozzles (55), and the other end of the main water pipe is communicated with a water supply pipe.

8. The device for recycling heat of the incinerator at the plateau, which is environment-friendly and efficient, according to claim 7, is characterized in that the cleaning device comprises a sliding rod (57), a pull rod (58) and a brush (59), the sliding rod (57) is slidably arranged on the dust collection cover (47) in a penetrating manner, one end of the sliding rod (57) extends into the dust collection cover (47) and is fixed with the brush (59), the other end of the sliding rod (57) is fixed with the pull rod (58), a limiting block (60) is fixed on the sliding rod (57), a first spring (61) is sleeved on the sliding rod (57), the first spring (61) is located between the limiting block (60) and the pull rod (58), and two ends of the first spring (61) are respectively fixedly connected with the limiting block (60) and the gas collection cover (47).

9. The device for recycling heat of the incinerator at the plateau, the environmental protection and the high efficiency as the claim 1, characterized in that the mounting plate (49) is provided with through holes on the left and the right sides, the gas collecting hood (47) is provided with threaded holes opposite to the through holes, bolts (62) are inserted into the through holes and are in threaded connection with the threaded holes, the bolts (62) are sleeved with gaskets (63), and the gaskets (63) are positioned between the mounting plate (49) and the heads of the bolts (62).

10. The device for recycling heat of the incinerator on the plateau with environmental protection and high efficiency as claimed in claim 1, characterized in that said crushing box (31) is connected with said air heater through heating pipe (64).