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CN-121993806-A - Garbage incineration treatment device and treatment method thereof

CN121993806ACN 121993806 ACN121993806 ACN 121993806ACN-121993806-A

Abstract

The invention provides a garbage incineration treatment device, which comprises an incineration tower, an exhaust gas treatment device and a fly ash treatment device, wherein the exhaust gas treatment device comprises an exhaust gas input pipeline, an exhaust gas heating mechanism, an exhaust gas output pipeline and an exhaust gas filtering mechanism, the exhaust gas heating mechanism comprises a plurality of reaction bins and a heating mechanism, the exhaust gas filtering mechanism is respectively communicated with the plurality of reaction bins through the exhaust gas output pipeline, an injection pipeline is further arranged on each reaction bin, an activated carbon filter layer is arranged in each exhaust gas filtering mechanism, the fly ash treatment device comprises n treatment units, a transmission mechanism is arranged between the treatment units, each treatment unit comprises a treatment bin, a water washing mechanism is arranged in each treatment bin, a circulating water mechanism is further arranged between the treatment units, a drainage system of the n+1th treatment unit is communicated with a water inlet system of the n treatment unit, the drainage system of the first treatment unit is discharged after being subjected to purification treatment through an electric flocculation sewage treatment mechanism, and a discharge end of the final treatment unit is connected with a material piling mechanism for making bricks.

Inventors

  • Pei Houzhong
  • JIN XIN

Assignees

  • 乐清市金坤环保科技有限公司

Dates

Publication Date
20260508
Application Date
20260401

Claims (10)

  1. 1. A garbage incineration treatment device is characterized by comprising an incineration tower, an exhaust gas treatment device and a fly ash treatment device, wherein the exhaust gas treatment device comprises an exhaust gas input pipeline, an exhaust gas heating mechanism, an exhaust gas output pipeline and an exhaust gas filtering mechanism, the exhaust gas heating mechanism comprises a plurality of reaction bins and a heating mechanism for heating the reaction bins, the incineration tower is respectively communicated with the plurality of reaction bins through the exhaust gas input pipeline, the exhaust gas filtering mechanism is respectively communicated with the plurality of reaction bins through the exhaust gas output pipeline, the heating mechanism is respectively communicated with the plurality of reaction bins through the heating pipeline, an injection pipeline for injecting calcium carbonate slurry or calcium carbonate powder is further arranged on the reaction bins, the injection pipeline is respectively communicated with the plurality of reaction bins, an activated carbon filtering layer is arranged in the exhaust gas filtering mechanism, the exhaust gas treatment device comprises n treatment units, a transmission mechanism is arranged between the treatment units, the treatment units comprise treatment bins, a water washing mechanism is arranged in the treatment bins, a circulating water mechanism is also arranged between the treatment units, a water discharging system of an n+1 treatment unit is respectively communicated with a water inlet system of an n treatment unit, a water discharging system of a first treatment unit is respectively communicated with a water discharging system of a final treatment unit through an electric flocculation treatment unit, and a final treatment unit is used for discharging a final material.
  2. 2. The garbage incineration treatment device according to claim 1, wherein the waste gas filtering mechanism is internally provided with a gas cooling cavity, the gas cooling cavity is arranged above the active carbon filtering layer, a cold air pipe is arranged in the gas cooling cavity, the cold air pipe is provided with a plurality of air outlet holes for releasing cold air, the air outlet holes are distributed on the lower peripheral surface of the cold air pipe, the bottom of the gas cooling cavity is provided with a filter plate, the filter plate is in an inverted trapezoid shape, the bottom of the filter plate is provided with a water collecting tank for collecting condensed water, the water collecting tank is obliquely arranged, the lower end of the water collecting tank is provided with a water outlet, the water outlet is provided with an adsorption component, LDHs are arranged in the adsorption component, and the waste gas heating mechanism further comprises an air passage connecting port for adjusting the oxygen content of the reaction bin.
  3. 3. A refuse incineration disposal apparatus according to claim 1, characterised in that: the transmission mechanism comprises a climbing type feeding belt, a feeding belt and a discharging belt, wherein the feeding belt and the discharging belt are arranged at two ends of the climbing type feeding belt, the discharging belt is arranged below the climbing type feeding belt, one end of the feeding belt is connected with the upper part of the climbing type feeding belt, the other end of the feeding belt is arranged above the washing mechanism, the washing mechanism comprises an outer cylinder and an inner roller, the inner roller is arranged in the outer cylinder, a water injecting cavity is formed between the outer cylinder and the inner roller, the inner roller is provided with a plurality of filtering holes, the inner roller comprises an outer layer and an inner layer, a back-washing filter screen is clamped between the outer layer and the inner layer, two ends of the outer cylinder are provided with sealing covers and limiting bearings for limiting the parallel displacement of the inner roller, one end of the inner roller corresponding to the feeding belt is provided with a feeding cylinder, the feeding cylinder extends out of the outer cylinder, the feeding cylinder is provided with a feeding cavity for receiving fly ash treatment objects on the feeding belt, one end of the feeding cavity is communicated with the inner roller cavity, the other end of the feeding cavity is provided with a driving rod, the driving rod is arranged at the other end of the feeding cavity, the driving rod is arranged at the other end of the driving rod is arranged at the driving rod, the driving rod is arranged at the driving rod, and penetrates through the driving rod, and is arranged at the driving rod, and is provided with a driving rod is provided with a driving part, and is provided with a driving part, vibration part is arranged, the driving shaft is in transmission connection with the driving wheel and the driving motor through the synchronous belt, the driving motor drives the inner roller to circumferentially rotate through the driving shaft matched with the driving wheel, a bottom cover is arranged at one end of the inner roller corresponding to the driving part, a through hole for a push rod to pass through is formed in the bottom cover, one end of the push rod is arranged in an inner cavity of the inner roller and is provided with an ejector plate for pushing the inner roller to discharge, and the other end of the push rod passes through the bottom cover and is connected with the air cylinder.
  4. 4. A garbage incineration treatment device according to claim 3 is characterized in that the water inlet system comprises a water inlet pipe communicated with the upper end of a water injection cavity and a water inlet valve for controlling water inlet, the water outlet system comprises a water outlet pipe communicated with the lower end of the water injection cavity and a water outlet valve for controlling water outlet, the lower end of the feed cylinder is provided with a discharge belt for receiving fly ash treated matters after washing of the unit, a discharge channel is arranged between the discharge end of the discharge belt and the upper side of a discharging belt, the water outlet pipe comprises a water outlet main pipeline, a first water outlet branch and a second water outlet branch, the first water outlet branch is communicated with a first water storage tank, the second water outlet branch is communicated with a second water storage tank through a filter press, the water outlet valve is a three-way electromagnetic valve, the water inlet pipe comprises a water inlet main pipeline, a first water inlet branch and a second water inlet branch, the first water inlet branch is communicated with a second water storage tank or a clean water tank, the second water inlet branch is communicated with the first water storage tank or the clean water tank, and the water inlet valve is a three-way electromagnetic valve.
  5. 5. A garbage treatment method is characterized by comprising the following steps of S1, incinerating garbage through an incineration tower at 850-890 ℃, S2, conveying generated flue gas into a reaction bin through an exhaust gas input pipeline, heating the temperature in the reaction bin by a heating mechanism to be kept at 920-970 ℃, injecting calcium carbonate slurry or calcium carbonate powder into the reaction bin through an injection pipeline during the process, enabling the calcium carbonate slurry or the calcium carbonate powder to react with the flue gas, rapidly catalyzing the decomposition of PFAS, S3, conveying gas generated after the reaction of the reaction bin into an exhaust gas filtering mechanism through an exhaust gas output pipeline, further filtering and purifying, and then discharging, S4, conveying the generated gas into a treatment bin through a conveying mechanism, carrying out a water washing procedure, carrying out high-speed shaking, desorbing salt, heavy metal and dioxin adsorbed on the surface of the fly ash into water, conveying the dehydrated fly ash treated matter into a next treatment bin, repeating the steps n times, wherein the water discharged from a first treatment unit is purified by an electric flocculation sewage treatment mechanism, and then discharged from the first treatment unit is used for a second treatment unit (n-treatment unit is used for a first treatment unit and a second treatment unit is repeatedly used for n treatment unit is used for 1).
  6. 6. A garbage disposal method according to claim 5, wherein the step S3 comprises the steps of S31 of rapidly cooling high-temperature flue gas through a gas cooling cavity, S32 of placing generated condensed water in a water collecting tank, purifying through LDHs and then discharging the condensed water from a water outlet, S33 of introducing gas into an active carbon filter layer, further adsorbing and purifying residual PFAS and hydrogen fluoride through the active carbon filter layer, and then discharging the purified gas.
  7. 7. A garbage disposal method according to claim 5, wherein the step S4 comprises the steps of S41, enabling fly ash treatment matters to enter a treatment bin through a climbing type feeding belt and a feeding belt and then fall into a feeding cylinder through a feeding hole, S42, enabling a first driving mechanism to control a pushing member to enter a feeding cavity to push the fly ash treatment matters into an inner cylinder and seal and block the feeding cavity, S43, enabling a water feeding system to fill water into the water filling cavity, enabling a driving motor to drive the inner cylinder to circumferentially rotate through a driving shaft in cooperation with a driving wheel to wash the fly ash treatment matters, and discharging waste water through a drainage system after washing is completed, S44, enabling a pushing member to push the feeding cavity to open an outlet of the feeding cylinder, enabling a cylinder to drive an ejector plate to move forwards through a pushing rod to push the fly ash treatment matters after washing out of the inner cylinder to fall onto a discharging belt through the outlet of the feeding cylinder, and enabling the fly ash treatment matters to be sent into a next treatment unit through a discharging channel and a transmission mechanism.
  8. 8. A garbage disposal method according to claim 7, wherein the step S43 includes injecting water into the water injection chamber through the first water inlet branch S431, washing water in the disposal bin S432, discharging water for washing into the water discharge main pipeline through the water discharge valve S433, opening the water discharge valve S434, and discharging water for washing into the second water storage tank after being treated and filtered by the filter press through the second water discharge branch S434.
  9. 9. A garbage disposal method according to claim 5, wherein the step S4 further comprises the step of S45 of injecting water into the water injection cavity through the second water inlet branch, the step of S432 of cleaning the inner drum, the step of S433 of feeding cleaning water into the water discharge main pipeline through the water discharge valve, and the step of S434 of normally closing the water discharge valve, and the step of feeding cleaning water into the first water storage tank through the first water discharge branch.
  10. 10. A garbage disposal method according to claim 5, wherein in said step S4, a plurality of processing units are operated in synchronization.

Description

Garbage incineration treatment device and treatment method thereof Technical Field The invention relates to the technical field of garbage disposal, in particular to a garbage incineration disposal device and a disposal method thereof. Background Perfluoro-polyfluoro compounds are a new class of contaminants with high thermal and chemical stability that persist in the environment. Research shows that the entrance of perfluoro-polyfluoro compounds into the environment can pose a potential threat to microbial ecology and human health. However, in recent decades, perfluoro-polyfluoro compounds have been widely used in industries such as fire extinguishing agent production, fluorine chemical industry, electroplating, and various consumer product productions, and most residues and consumer products containing perfluoro-polyfluoro compounds become solid wastes to be disposed of after the end of the service life. Landfill is one of the mainstream processes of domestic garbage disposal at present. The household garbage contains about 50% -70% of organic matters, a large amount of organic matters are released in the storage and landfill processes, a part of the household garbage can be decomposed, degraded or adsorbed and retained by garbage piles, and the rest part of the household garbage enters landfill leachate, so that the landfill is an important source of organic pollution of the surrounding environment. Research shows that compared with municipal sewage and natural water, the detection concentration of perfluoro-polyfluoro compounds in landfill leachate is relatively higher, the variety is more various, and the landfill leachate can enter the surrounding environment through seepage and the like. For example, studies have shown that perfluoro-polyfluoro compounds accumulate in landfill soil as prototypes or metabolites or pass into groundwater by leaching. Landfill leachate is therefore considered one of the important sources of pollution for perfluoro-polyfluoro compounds in groundwater. The incineration is adopted, so that the volume of the garbage is reduced, the energy can be recovered, but a large amount of incineration bottom ash and incineration fly ash can be generated in the incineration, and because heavy metals in the garbage can volatilize in the furnace in the incineration process and can be enriched in the fly ash, the contents of the heavy metals and dioxin in the garbage incineration fly ash exceed the standard, and the main stream method at present is a water washing method. Although the water washing method can effectively remove free chlorine in the fly ash, a large amount of water washing waste liquid is generated in the treatment process, and secondary advanced treatment is needed. Therefore, how to solve the problem of high-efficiency and environment-friendly treatment of household garbage is a urgent need. Disclosure of Invention In view of the above, an object of the present invention is to provide a garbage incineration disposal apparatus and a disposal method thereof. The garbage incineration treatment device comprises an incineration tower, an exhaust gas treatment device and a fly ash treatment device, wherein the exhaust gas treatment device comprises an exhaust gas input pipeline, an exhaust gas heating mechanism, an exhaust gas output pipeline and an exhaust gas filtering mechanism, the exhaust gas heating mechanism comprises a plurality of reaction bins and a heating mechanism for heating the reaction bins, the incineration tower is respectively communicated with the plurality of reaction bins through the exhaust gas input pipeline, the exhaust gas filtering mechanism is respectively communicated with the plurality of reaction bins through the exhaust gas output pipeline, the heating mechanism is respectively communicated with the plurality of reaction bins through the heating pipeline, an injection pipeline for injecting calcium carbonate slurry or calcium carbonate powder is further arranged on the reaction bins, the injection pipeline is respectively communicated with the plurality of reaction bins, an active carbon filter layer is arranged in the exhaust gas filtering mechanism, the exhaust gas treatment device comprises n treatment units, a transmission mechanism is arranged between the treatment units, the treatment units comprise treatment bins, a water washing mechanism is arranged in the treatment bins, a circulating water mechanism is further arranged between the treatment units, a water drainage system of the n+1th treatment unit is respectively communicated with the plurality of reaction bins, the water drainage system of the nth treatment unit is respectively communicated with the water inlet system of the nth treatment unit, the water drainage system is respectively communicated with the final material discharge system of a final material through an electric flocculation treatment unit, and a discharge end of the final treatment unit is used for making a brick. By