CN111102574A

CN111102574A - Hospital garbage burning-out furnace and burning-out treatment method

Info

Publication number: CN111102574A
Application number: CN202010109492.3A
Authority: CN
Inventors: 黄杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-22
Filing date: 2020-02-22
Publication date: 2020-05-05

Abstract

A hospital garbage burning furnace and burning treatment method comprises the following steps: a garbage burning furnace, a rotary dryer, a rotary carbonization furnace, a waste heat boiler, a basement and a waste gas burning furnace; the method is characterized in that: the forklift is used for feeding, garbage enters the rotary dryer for dehydration, the dry garbage distributor feeds into the rotary carbonization furnace, the mixture is carbonized at high temperature, generated mixed gas is blown into the carbonization furnace body by an air blower for combustion, the rotary carbonization furnace is used for supplying heat, high-temperature gas on the upper part of the carbonization furnace body is fed into the rotary dryer for dehydration, the gas discharged from the dryer is fed into the waste heat boiler for air distribution and combustion, a chain grate is used for heating the carbonization furnace body and the waste heat boiler, the gas at the top of the burning-out furnace body is fed into the waste gas for air distribution and combustion, the liquefied gas flame is ignited, hot water is fed into the waste heat boiler for water supplement, the waste gas enters the water bath dedusting and desulfurizing tower and then is discharged into the air, the waste heat is recycled in the whole production process, and an accessory product is pressure steam which can be used.

Description

Hospital garbage burning-out furnace and burning-out treatment method

Technical Field

The invention discloses a hospital garbage burning-out furnace and a burning-out treatment method, and belongs to the technical field of environmental protection equipment.

Background

The garbage generated in hospitals is numerous and disordered, wherein the garbage comprises domestic garbage and medical garbage, the medical garbage comprises plastic, waste paper, gauze, medicine bottles, wastes after operations and the like, the domestic garbage also comprises wet garbage such as leftovers and the like, the water content is high, and the treatment is very troublesome; the collection and transportation are needed, and all the operations are manual; if the collected garbage is incinerated once, the air can be seriously polluted, and various harmful substances and gases such as heavy metal, dioxin, carbon monoxide, carbon dioxide and the like which are generated seriously harm the life safety and the ecological environment of human beings; land is occupied when the underground is deeply buried, and the land and water sources are polluted and offspring are lost; a large hospital generates tons of garbage every year, the garbage treatment cost per ton is more than yuan, and the annual garbage treatment cost is hundreds of thousands yuan.

Disclosure of Invention

In order to solve the problems, the hospital waste burning-out furnace and the burning-out processing method are used for carbonizing and burning-out the hospital waste, the generated harmful gas, combustible gas and carbon granule dust are subjected to three-level full-sintering and extinguishing in the carbonization furnace, the waste heat boiler and the waste gas combustion furnace after oxygen distribution, and a large amount of steam can be provided for the hospital.

In order to solve the technical problems, the hospital garbage burning furnace and the burning treatment method comprise the following steps: garbage feeding hopper, rotary dryer, kiln head cover and exhaust pipe, kiln tail cover and air inlet pipe, dry garbage distributor, burning furnace exhaust pipe, burning furnace body, carbonization furnace body, rotary carbonization furnace, carbonization furnace hydraulic feeder, hydraulic push rod, glue discharging oil pipe, rotary carbonization furnace tail cover and exhaust port, carbon powder discharging auger, mixed gas combustion flame, mixed gas pipe, burning furnace chain grate, chain driving wheel, bellows, No. 1 blower, No. 4 and No. 5 blower air distribution pipe, No. 1 blower air inlet pipe, waste heat boiler, carbonization furnace waste heat coil pipe, boiler lower water chamber, boiler combustion chamber fire spray pipe, chain grate combustion flame, waste gas combustion furnace top cover, waste gas combustion furnace water tank, waste gas combustion furnace exhaust pipe, No. 2 blower air inlet pipe, No. 2 spray combustion pipe, No. 3 blower air inlet pipe, waste gas combustion flame, Boiler water pipe, boiler steam pipe, carbonization furnace body mixed gas pipe, boiler water injection pipe, waste gas combustion furnace water tank hot water pipe, waste gas combustion furnace water tank water filling pipe, boiler water injection pump, basement top gas collecting pipe, carbonization furnace right exhaust pipe, No. 4 air blower gas inlet pipe, No. 5 air blower, No. 4 air blower, carbonization furnace left exhaust pipe, rotary dryer riding wheel, riding wheel bracket, wet ash water tank, wet dust ash, burning out furnace heat preservation cotton and color steel plate, basement, rotary carbonization furnace discharge port, carbon powder discharge auger, No. 6 air blower gas inlet pipe, No. 7 air blower, No. 6 and No. 7 air blower air distribution pipe, No. 7 air blower air inlet pipe, boiler upper water chamber pipe, waste gas furnace heat preservation cotton and color steel plate, waste gas furnace refractory brick, No. 3 air distribution pipe, liquefied gas flame, waste gas, A top cover of the waste gas furnace, a cross water pipe of a water tank of the waste gas furnace, an overflow pipe of the water tank of the waste gas furnace and a waste gas burning furnace.

The method is characterized in that: the garbage burning furnace is arranged in the basement, and the top of the basement is required to be sealed and airtight; the garbage feeding hopper is level with the ground level, and the tail gas water bath dedusting and de-drying tower of the garbage burning and extinguishing furnace can be arranged above the ground level.

A garbage feeding hopper at the feeding end of the rotary dryer is used for feeding materials on the ground by a forklift or a belt conveyor.

The rotary dryer is provided with a kiln head cover, an exhaust pipe, a kiln tail cover and an air inlet pipe.

The external part of the rotary dryer rotor is provided with a riding wheel track ring and a rotary dryer riding wheel, and the rotary dryer riding wheel is arranged on a riding wheel seat and a riding wheel bracket.

The rotary drier rotor driving device is designed on the excircle of the discharge end, a chain wheel is installed, a speed reducer provided with a small chain wheel is provided with a speed regulating motor as power, and a chain is installed and driven by the chain.

The dry garbage distributor at the outlet of the kiln tail cover is connected with the hydraulic feeders of the two rotary carbonization furnaces, a hydraulic push rod is installed at the tail end of the hydraulic feeder of the carbonization furnace, and the hydraulic push rod pushes the hydraulic feeders to feed in turn into the two rotary carbonization furnaces at regular time.

The water content of the garbage baked by the rotary dryer is required to be within 10-12%.

Two rotatory carbide furnaces are installed in the carbonization furnace body, and the carbonization furnace body is built by resistant firebrick with fire clay, and upper portion is convex to require double-deck heat preservation, can not leak gas in the arc of upper portion, carbonization furnace body gas mixture pipe is installed on carbonization furnace body upper portion, outside output gas mixture.

The tail ends of the two rotary carbonization furnaces are provided with a rotary carbonization furnace tail cover and an exhaust port, and the lower end outlet is provided with a carbon powder discharge auger, so that carbon powder in the carbonization furnace is discharged out of the carbonization furnace body, is mixed with fire coal and enters the chain grate to be combusted.

A glue discharging oil pipe is arranged below the feeding end of the carbon powder auger, and the discharged glue oil is mixed into the fire coal after being dewatered and enters a chain furnace of a burning out furnace for burning.

The upper part in the carbonization furnace body is also provided with a carbonization furnace waste heat coil pipe, and the water inlet pipe and the water outlet pipe of the carbonization furnace body waste heat coil pipe are respectively connected with a waste heat boiler.

Heat source in the carbonization furnace body: firstly, burning out the fuel on the chain grate of the furnace to supply heat, and secondly, supplying heat by mixed gas combustion flame.

The mixed gas combustion flame is combusted by the gas sprayed from the mixed gas pipe, the mixed gas pipe is connected with a No. 4 air blower and a No. 5 air blower exhaust pipe, the exhaust pipe is also connected with a distribution pipe from a No. 1 air blower air outlet pipe, air inlet pipes of the two air blowers are respectively connected with a right exhaust pipe and a left exhaust pipe of the carbonization furnace, the two exhaust pipes are respectively connected with tail covers and exhaust ports of the two rotary carbonization furnaces, and the natural gas generated in the rotary carbonization furnaces is combusted at the lower part of a carbonization furnace body through the distribution of the air.

The upper parts of the carbonization furnace body and the waste heat boiler are provided with rotary dryer rotors which are arranged in a shape like a Chinese character 'pin'.

The rotary dryer rotor, the waste heat boiler and the carbonization furnace body are all installed in the burning-out furnace body, the upper part in the burning-out furnace body is required to be arc-shaped and cannot leak gas, the burning-out furnace exhaust pipe is connected, gas is conveyed to the chain grate blower, and the leaked waste gas is sent into the chain grate furnace again for combustion.

The burning-out furnace body is arranged in the underground chamber.

The rotary dryer has four heat sources: firstly, waste heat at the top of a carbonization furnace body; secondly, waste heat at the upper part of the waste heat boiler is generated; thirdly, a carbonization furnace body mixed gas pipe which is output outwards in the carbonization furnace body is connected with a kiln tail cover and a gas inlet pipe of a rotary dryer, high-temperature gas generated in the carbonization furnace body enters the rotary dryer, the water-containing garbage is heated and dehydrated, and is combined with water vapor to generate partial combustible gas and carbon particle dust to be output and enter a waste heat boiler to be combusted; fourthly, burning fire flames of the chain grate on the chain grate burning fire extinguishing furnace for supplying heat.

The first step is to burn out the fuel on the furnace chain grate for supplying heat; secondly, the gas in the rotary dryer is discharged through a kiln hood and an exhaust pipe and is connected with an air inlet pipe of a No. 6 air blower, an air outlet pipe of the No. 6 air blower is connected with a fire spraying pipe of a boiler combustion chamber in the waste heat boiler, the No. 7 air blower is used for distributing air, an outlet of the No. 6 air blower is connected with an air outlet pipe of the No. 6 air blower, the air inlet pipe of the No. 7 air blower is connected with a basement top air collecting pipe, and the gas in the rotary dryer is fed into the waste heat boiler for combustion through the No. 7 air blower.

The lower part in the burning-out furnace body is provided with a burning-out furnace chain grate which penetrates through the lower parts of the carbonization furnace body and the waste heat boiler and supplies heat for the two rotary carbonization furnaces and the waste heat boiler.

An air box is arranged below the chain grate of the burning-out furnace, an air inlet of the air box is connected with an air outlet pipe of a No. 1 air blower, and an air inlet pipe of the No. 1 air blower is connected with an air receiving pipe at the top of the basement.

Controlling the temperature in the carbonization furnace body and the waste heat boiler: the inside of the two furnace bodies is mainly gas combustion heat, and the furnace temperature is controlled by controlling the linear speed of the chain grate and the air inlet quantity of the No. 1 blower by the driving wheel of the chain grate for maintaining constant temperature in the furnace.

The lower part of the chain grate of the burning-out furnace is provided with a wet ash water tank, water is filled in the wet ash water tank, dust leaked from the chain grate of the burning-out furnace enters the wet ash water tank, and the ash is discharged into the wet ash water tank at the ash discharging end of the chain grate of the burning-out furnace.

The rear part of the carbonization furnace body is provided with a waste heat boiler, boiler water feeding chambers are arranged on two sides of the waste heat boiler, the middle of the waste heat boiler is connected by a plurality of boiler pipes, a boiler water injection pipe is arranged in each water feeding chamber, the boiler water injection pipe is connected with a boiler water injection pump water outlet pipe, and a boiler water injection pump water inlet pipe is connected with a waste gas combustion furnace water tank hot water pipe.

The upper part of the waste heat boiler is provided with a boiler steam pipe, the steam pipe is connected with a steam distribution box, and the steam distribution box is arranged on the ground at the upper part of the basement and can convey steam outwards.

The waste heat boiler is provided with a boiler upper water chamber, and the middle of the waste heat boiler is connected with the waste heat boiler through a plurality of boiler upper water chamber hot water pipes.

A circular waste gas combustion furnace is further designed at the tail end of the burning-out furnace body of the basement, the waste gas combustion furnace can also be installed on the ground, tests prove that the tail gas of the burning-out furnace body needs to be combusted for the third time, and cold water is heated by using the temperature during combustion for a waste heat boiler.

The waste gas combustion furnace is built by refractory bricks, the outside of the waste gas combustion furnace is provided with waste gas furnace aluminum silicate heat preservation cotton and a color steel plate, and the inside of the waste gas combustion furnace is provided with a waste gas combustion furnace annular water tank.

The water tank inlet pipe of the waste gas combustion furnace is connected with a soft water ion exchanger, namely a water outlet pipe of a soft water device, the water inlet pipe of the soft water device is connected with a tap water pipe, water is injected into the water tank of the waste gas combustion furnace by using the pressure of the tap water, and the water tank of the waste gas combustion furnace is kept at normal pressure.

An overflow pipe is arranged on the water tank of the waste gas combustion furnace to prevent the overflow of redundant water when cold water is added.

The hot water pipe of the water tank of the waste gas combustion furnace is connected with the water inlet pipe of the boiler water injection pump.

The exhaust pipe of the waste gas combustion furnace is connected with the air inlet pipe of the water bath dedusting desulfurization tower.

The air outlet pipe of the No. 2 air blower is connected with the air blower combustion pipe of the No. 2 air blower outside the waste gas combustion furnace, the air outlet pipe of the No. 2 air blower is connected with the air blower combustion pipe of the No. 2 air blower, waste gas combustion furnace combustion flame is formed in the waste gas combustion furnace, air is distributed by the No. 3 air blower, the air outlet pipe of the No. 3 air blower is connected with the air blower combustion pipe of the No. 2 air blower, and the air inlet pipe of the No. 3 air blower is connected with the air receiving pipe.

The center of the top cover of the waste gas furnace is provided with a waste gas explosion-proof device, and the concentration of combustible gas at the top of the burning-out furnace body is not constant, so that the phenomenon of explosion and leveling occurs, and the explosion-proof device is designed for preventing the waste gas burning furnace from being damaged.

The middle of the annular water tank of the waste gas combustion furnace, namely the hearth of the waste gas combustion furnace, is provided with a plurality of layers of cross-shaped hot water pipes, and two ends of the cross-shaped water pipes of the water tank of the waste gas combustion furnace are welded on the annular water tank of the waste gas combustion furnace, so that the fire area of the water tank of the waste gas combustion furnace is increased.

The bottom of the waste gas combustion furnace is provided with a liquefied gas pipe nozzle and an ignition device, and the liquefied gas pipe outlet is ignited to form liquefied gas flame.

The invention has the following innovations and novelty.

According to the garbage burning-out method designed by the invention, a company research team researches and tries for many years, a garbage burning-out furnace product enters a pilot-scale stage, the daily processing capacity of the product design can reach 50 tons, the design is further expanded, and the daily processing capacity is expected to reach more than 300 tons.

The product of the invention has one-time burning treatment of garbage, the accessory product is pressure steam, and a small amount of dust and mud can be used for producing high-grade ceramics.

The garbage burning and extinguishing furnace has compact design and unique design concept, integrates garbage drying, carbonization, gas and carbon particle burning and extinguishing into a whole, and has less discharge and cleanness and sanitation if the chain grate of the burning and extinguishing furnace is changed from burning white coal into burning natural gas.

The garbage burning furnace can fully utilize energy, heat energy and combustible gas generated during self combustion are recycled, the waste heat boiler is designed to generate steam, garbage is converted into new energy, and the new energy can be used for hospital dining halls, bathing halls and disinfection and cleaning departments, so that the waste is turned into treasure, and the country and the people are benefited.

The harmful gases dioxin, carbon monoxide, carbon dioxide and combustible alkane gases generated by the garbage burning furnace are subjected to suction type three-time oxygen distribution combustion in a sealed environment, the tail gas emission is lower than the emission standard of the national environmental protection department, and the authoritative detection data of the national environmental protection department show that the content of the dioxin is 0.005 percent, only 1/20 with the content of 0.1 percent of the national standard is far lower than the numerical value of the national emission standard, and the content of other gases is also far lower than the national emission standard.

The garbage burning furnace color is controlled by a microcomputer, only 2 persons are needed for operation, the automation degree is high, and the working efficiency is greatly improved.

The whole set of equipment only uses 45KW of electricity, less water, less gas and less manpower, the coal is only used when the temperature is raised, and the coal is rarely used after the furnace temperature is stable, thus the equipment belongs to energy-saving and environment-friendly equipment.

The garbage burning furnace is installed in the underground chamber, has no waste, no noise, waste water, waste gas and no other pollution, is ideal hospital garbage treatment equipment, and can be widely popularized and used.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a schematic diagram of the overall structure of the present invention.

FIG. 2 is a schematic view showing the overall structure of the exhaust gas combustion furnace of the present invention.

FIG. 3 is a schematic cross-sectional view A-A of FIG. 1 of the present invention.

FIG. 4 is a schematic cross-sectional view B-B of FIG. 1 of the present invention.

FIG. 5 is a schematic cross-sectional view C-C of FIG. 2 of the present invention.

In the attached drawings, a hospital garbage burning furnace and burning treatment method comprises the following steps: 1. garbage feeding hopper, 2. rotary dryer, 3. kiln head cover and exhaust pipe, 4. kiln tail cover and air inlet pipe, 5. dry garbage distributor, 6. burning out furnace exhaust pipe, 7. burning out furnace body, 8. carbonization furnace body, 9. rotary carbonization furnace, 10. carbonization furnace hydraulic feeder, 11. hydraulic push rod, 12. glue discharging oil pipe, 13. rotary carbonization furnace tail cover and exhaust port, 14. carbon powder discharging screw conveyer, 15. mixed gas combustion flame, 16. mixed gas pipe, 17. burning out furnace chain grate, 18. chain grate driving wheel, 19. air box, 20.1 blower, 21.1 blower air outlet pipe, 22.4 and 5 blower air distribution pipe, 23. waste heat boiler, 24. carbonization furnace waste heat coil pipe, 25. boiler lower water chamber, 26. boiler combustion chamber spray nozzle, 27. fire pipe chain grate combustion flame, 28. waste gas top cover, 29. waste gas water tank combustion furnace, 29. combustion furnace water tank, 30. Exhaust pipe of waste gas combustion furnace, blower No. 31.2, air inlet pipe of blower No. 32.2, blowing and burning pipe of blower No. 33.2, blower No. 34.3, air inlet pipe of blower No. 35.3, combustion flame of waste gas combustion furnace 36, boiler water pipe 37, boiler steam pipe 38, boiler steam pipe 39, mixed gas pipe of carbonization furnace body 40, boiler water injection pipe 41, hot water pipe of water tank of waste gas combustion furnace 42, water inlet pipe of water tank of waste gas combustion furnace 43, boiler water injection pump 44, top gas collecting pipe of underground chamber 45, right gas exhaust pipe of carbonization furnace 45, air inlet pipe of blower No. 46.4, air inlet pipe of blower No. 47.5, blower No. 48.5, blower No. 49.4, left exhaust pipe of carbonization furnace 50, rotary dryer riding wheel 51, riding wheel 52, riding wheel support 53, wet ash pool 54, wet dust, 55, heat-preserving cotton and color steel plate for burning and fire extinguishing furnace, basement 56, 57, discharge outlet of rotary carbonization furnace 58, auger for discharging carbon, 59.6 blower, 60.6 blower inlet pipe, 61.7 blower, 62.6 blower air distribution pipe and 7 blower air distribution pipe, 63.7 blower air inlet pipe, 64 boiler upper water chamber, 65 boiler upper water chamber hot water pipe, 66 waste gas furnace heat preservation cotton and color steel plate, 67 waste gas furnace refractory brick, 683 blower air distribution pipe, 69 liquefied gas pipe, 70 liquefied gas flame, 71 waste gas furnace explosion-proof device, 72 waste gas furnace top cover, 73 waste gas furnace cross water pipe, 74 waste gas furnace water tank overflow pipe and 75 waste gas burning furnace.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

A hospital garbage burning furnace and burning treatment method comprises the following steps: a garbage feed hopper 1, a rotary dryer 2, a kiln head cover and exhaust pipe 3, a kiln tail cover and air inlet pipe 4, a dry garbage distributor 5, a burning and extinguishing furnace exhaust pipe 6, a burning and extinguishing furnace body 7, a carbonization furnace body 8, a rotary carbonization furnace 9, a carbonization furnace hydraulic feeder 10, a hydraulic push rod 11, a glue discharging oil pipe 12, a rotary carbonization furnace tail cover and exhaust port 13, a carbon powder discharging auger 14, a mixed gas combustion flame 15, a mixed gas pipe 16, a burning and extinguishing furnace chain furnace row 17, a chain driving wheel 18, a wind box 19, a No. 1 blower 20, a No. 1 blower air outlet pipe 21, No. 4 and No. 5 blower air distribution pipes 22, a waste heat boiler 23, a carbonization furnace coil pipe 24, a boiler lower water chamber 25, a boiler combustion chamber fire spraying pipe 26, a chain furnace burning flame 27, a waste gas combustion furnace top cover 28, a waste gas combustion furnace water tank 29, a waste gas combustion furnace exhaust pipe 30, a waste gas combustion furnace 31, no. 2 blower spraying and burning pipe 33, No. 3 blower 34, No. 3 blower air inlet pipe 35, waste gas combustion furnace combustion flame 36, boiler water pipe 37, boiler steam pipe 38, carbonization furnace body mixed gas pipe 39, boiler water injection pipe 40, waste gas combustion furnace water tank hot water pipe 41, waste gas combustion furnace water tank water adding pipe 42, boiler water injection pump 43, basement top gas collecting pipe 44, carbonization furnace right exhaust pipe 45, No. 4 blower air inlet pipe 46, No. 5 blower air inlet pipe 47, No. 5 blower 48, No. 4 blower 49, carbonization furnace left exhaust pipe 50, rotary dryer riding wheel 51, riding wheel bracket 52, wet ash water tank 53, wet dust ash 54, burning and extinguishing furnace heat preservation cotton and color steel plate 55, basement 56, rotary carbonization furnace discharge port 57, blower carbon powder discharge auger 58, No. 6 blower 59, No. 6 blower 60, No. 7 blower 61, No. 6 and No. 7 blower air inlet pipe 62, No. 7 blower air inlet pipe 63, rotary kiln air inlet pipe 63, the boiler comprises a boiler upper water chamber 64, a boiler upper water chamber hot water pipe 65, waste gas furnace heat preservation cotton and color steel plates 66, waste gas furnace refractory bricks 67, a No. 3 blower air distribution pipe 68, a liquefied gas pipe 69, liquefied gas flame 70, a waste gas furnace explosion-proof device 71, a waste gas furnace top cover 72, a waste gas furnace water tank cross water pipe 73, a waste gas furnace water tank overflow pipe 74 and a waste gas burning furnace 75.

It is characterized in that: the garbage burning furnace body 7 is arranged in the basement 56, the top in the basement 56 is required to be sealed and airtight, the garbage feed hopper 1 is level with the ground level, and the tail gas water bath dedusting tower of the garbage burning furnace can be arranged on the ground level.

A garbage feeding hopper 1 at the feeding end of a rotary dryer 2 is used for feeding materials on the ground by a forklift or a belt conveyor.

The rotary dryer 2 is provided with a kiln head cover and exhaust pipe 3 and a kiln tail cover and air inlet pipe 4.

The external part of the rotary body of the rotary dryer 2 is provided with a riding wheel track ring and a riding wheel 51 of the rotary dryer, and the riding wheel 51 of the rotary dryer is arranged on a riding wheel seat and a riding wheel bracket 52.

The rotary body driving device of the rotary dryer 2 is designed to be provided with a chain wheel on the excircle of the discharge end, and a speed reducer provided with a small chain wheel is provided with a speed regulating motor as power and is provided with a chain which is driven by the chain.

The dry garbage distributor 5 at the discharge port of the kiln tail cover and the gas inlet pipe 4 is connected with the hydraulic feeders 10 of the two rotary carbonization furnaces 9, a hydraulic push rod 11 is installed at the tail end of the hydraulic feeder 10 of the carbonization furnace, and the hydraulic feeder 10 is pushed by the hydraulic push rod 11 to rotate and push in the two rotary carbonization furnaces 9 at regular time.

The water content of the garbage baked by the rotary dryer 2 is required to be within 10-12%.

Two rotary carbonization furnaces 9 are arranged in a carbonization furnace body 8, the carbonization furnace body 8 is built by refractory bricks by using fire clay, the upper part of the carbonization furnace body is arc-shaped, double-layer heat preservation is required, air cannot leak in the arc-shaped upper part, a carbonization furnace body mixed air pipe 39 is arranged on the upper part of the carbonization furnace body 8, and mixed air is output outwards.

The tail ends of the two rotary carbonization furnaces 9 are provided with a rotary carbonization furnace tail cover and an exhaust port 13, the lower end outlet is provided with a carbon powder discharge auger 58, and carbon powder in the carbonization furnaces 9 is discharged out of the carbonization furnace body 8, mixed with coal and simultaneously enters the burning and extinguishing furnace chain grate 17 for burning.

The glue discharging oil pipe 12 is arranged below the feeding end of the carbon powder packing auger 58, and the discharged glue oil is mixed into the fire coal after being dewatered and enters the burning out furnace chain grate 17 for burning.

The upper part in the carbonization furnace body 8 is also provided with a carbonization furnace waste heat coil 24, and the water inlet pipe and the water outlet pipe of the carbonization furnace waste heat coil 24 are respectively connected with a waste heat boiler 23.

Heat source in the carbonization furnace body 8: firstly, burning out the fuel on the furnace chain grate 17 to supply heat, and secondly, supplying heat by using the mixed gas combustion flame 15.

The mixed gas combustion flame 15 is combusted by the gas sprayed from the mixed gas pipe 16, the mixed gas pipe 16 is connected with the exhaust pipes of a No. 4 blower 49 and a No. 5 blower 48, the exhaust pipes are also connected with a distribution pipe from the air outlet pipe 21 of the No. 1 blower, the

air inlet pipes

46 and 47 of the two blowers are respectively connected with the right exhaust pipe 45 of the carbonization furnace and the left exhaust pipe 50 of the carbonization furnace, the two exhaust pipes are respectively connected with the tail covers and the exhaust ports 13 of the two rotary carbonization furnaces, and the natural gas generated in the rotary carbonization furnace 9 is combusted in the carbonization furnace body 8 through the distribution of the air.

The upper parts of the carbonization furnace body 8 and the waste heat boiler 23 are provided with rotary bodies of the rotary dryer 2 which are arranged in a shape like a Chinese character 'pin'.

The rotary body of the rotary dryer 2, the waste heat boiler 23 and the carbonization furnace body 8 are all arranged in the garbage burning and extinguishing furnace body 7, the upper part in the garbage burning and extinguishing furnace body 7 is required to be arc-shaped, air can not leak, the rotary body is connected with the burning and extinguishing furnace exhaust pipe 6, air is conveyed to the chain grate blower, and the leaked waste gas is sent into the chain grate furnace again for burning.

The garbage burning furnace body 7 is installed in the basement 56.

The rotary dryer 2 has four heat sources: firstly, the waste heat at the top of the carbonization furnace body 8; secondly, the waste heat at the upper part of the waste heat boiler 23; thirdly, a carbonization furnace body mixed gas pipe 39 which is output outwards from the interior of the carbonization furnace body 8 is connected with a kiln tail cover of the rotary dryer and a gas inlet pipe 4, high-temperature gas generated in the carbonization furnace body 8 enters the interior of the rotary dryer 2, the water-containing garbage is heated and dehydrated and is combined with water vapor to generate partial combustible gas to be output, a kiln head cover and an exhaust pipe 3 are oxygen-distributed with No. 6 and No. 7 air blowers, an air outlet pipe is connected with a boiler combustion chamber fire spraying pipe 26, and waste heat after the combustion of the boiler combustion chamber fire spraying pipe 26 in the waste heat boiler 23 can be used; fourth, chain grate firing flames 27 are supplied to the burn-out furnace chain grate 17.

The heat source of the waste heat boiler 23 comprises two heat sources, namely, a first heat source for burning out chain grate combustion flames 27 on the chain grate 17; secondly, the gas in the rotary dryer 2 is discharged through a kiln hood and an exhaust pipe 3 and is connected with a No. 6 blower air inlet pipe 60, an air outlet pipe of a No. 6 blower 59 is connected with a boiler combustion chamber fire spraying pipe 26 in the waste heat boiler 23, a No. 7 blower 61 is distributed with air, an outlet is connected with an air outlet pipe of the No. 6 blower 59, a No. 7 blower air inlet pipe 63 is connected with a basement top air receiving pipe 44, and the gas in the rotary dryer 2 is distributed with air through the No. 7 blower 61 and is sent into the waste heat boiler 23 by the No. 6 blower 59 for combustion.

And a burning and extinguishing furnace chain grate 17 is arranged at the lower part in the burning and extinguishing furnace body 7, and the burning and extinguishing furnace chain grate 17 penetrates through the lower parts of the carbonization furnace body 8 and the waste heat boiler 23 to supply heat to the two rotary carbonization furnaces 9 and the waste heat boiler 23.

An air box 19 is arranged below the chain grate 17 of the burning-out furnace, the air inlet of the air box 19 is connected with an air outlet pipe 21 of a No. 1 blower, and an air inlet pipe 22 of the No. 1 blower is connected with an air receiving pipe 44 at the top of the basement.

Temperature control in the carbonization furnace body 7 and the waste heat boiler 23: the inside of the two furnace bodies is mainly gas combustion heat, the linear speed of the chain grate 17 and the air inlet quantity of the No. 1 blower 20 are controlled by the chain drive wheel 18 to control the furnace temperature in the furnace to maintain constant temperature.

A wet ash water tank 53 is arranged below the burning-out furnace chain grate 17, water is filled in the wet ash water tank 53, dust leaked from the burning-out furnace chain grate 17 enters the wet ash water tank 53, and the ash is discharged into the wet ash water tank 53 at the ash outlet end of the burning-out furnace chain grate 17.

The rear part of the carbonization furnace body 8 is provided with a waste heat boiler 23, boiler water feeding chambers 25 are arranged on two sides of the waste heat boiler 23, the middle parts of the waste heat boiler 23 are connected by a plurality of boiler pipes 37, a boiler water injection pipe 40 is arranged in the boiler water feeding chamber, the boiler water injection pipe 40 is connected with a boiler water injection pump 43 water outlet pipe, and a boiler water injection pump 43 water inlet pipe is connected with a waste gas combustion furnace water tank hot water pipe 41.

The upper part of the waste heat boiler 23 is provided with a boiler steam pipe 38, the boiler steam pipe 38 is connected with a steam distribution box, and the steam distribution box is arranged on the ground at the upper part of the basement and used for conveying steam outwards.

The upper part of the waste heat boiler 23 is provided with a boiler upper water chamber 64, and the middle part of the waste heat boiler 23 is connected with a plurality of boiler upper water chamber hot water pipes 65.

The tail end of the burning-out furnace body 7 of the basement 56 is also designed with a circular waste gas burning-out furnace 75, and the waste gas burning-out furnace 75 can also be arranged on the ground.

Tests prove that the tail gas of the burning-out furnace body 7 still contains a small amount of combustible gas, the third burning is needed, and the cold water is heated by using the temperature during the burning for the waste heat boiler 23.

The waste gas burning furnace 75 is built by refractory bricks, the outside is provided with waste gas furnace aluminum silicate heat preservation cotton and color steel plates 66, the inside of the waste gas burning furnace 75 is provided with a waste gas burning furnace water tank 29, and the waste gas burning furnace water tank 29 is an annular body.

The water inlet pipe of the waste gas combustion furnace water tank 29 is connected with a soft water ion exchanger, namely a water outlet pipe of a soft water device, the water inlet pipe of the soft water device is connected with a tap water pipe, water is injected into the waste gas combustion furnace water tank 29 by using the pressure of the tap water, and the normal pressure is maintained in the waste gas combustion furnace water tank 29.

An overflow pipe 74 for the waste gas furnace water tank is installed on the waste gas furnace water tank 29 to prevent excess water from overflowing during the cooling of water.

The hot water pipe of the water tank 29 of the waste gas combustion furnace is connected with the water inlet pipe of the boiler water injection pump 43.

The exhaust gas combustion furnace exhaust pipe 30 is connected with the water bath dedusting and desulfurizing tower inlet pipe.

The air outlet pipe 6 of the burning and extinguishing furnace at the top of the burning and extinguishing furnace body 7 is connected with the air inlet pipe 32 of the No. 2 blower outside the waste gas burning and extinguishing furnace 75, the air outlet pipe of the No. 2 blower is connected with the burning pipe 33 of the No. 2 blower, the burning flame 36 of the waste gas burning and extinguishing furnace 75 is formed, the air is distributed by the No. 3 blower 34, the air outlet pipe of the No. 3 blower 34 is connected with the burning pipe 33 of the No. 2 blower, and the air inlet pipe 35 of the No. 3 blower is connected with the air receiving pipe 44 at the top.

The center of the waste gas furnace top cover 72 is provided with a waste gas furnace explosion-proof device 71, and the concentration of combustible gas entering the burning-out furnace body 7 is not constant, so that the waste gas burning-out furnace 75 has an explosion-finishing phenomenon, and the waste gas furnace explosion-proof device 71 is designed for preventing the waste gas burning-out furnace 75 from being damaged in the explosion-finishing process.

The middle of the waste gas combustion furnace water tank 29, namely the hearth of the waste gas burning furnace 75 is provided with a waste gas furnace water tank multilayer cross water pipe 73, and both ends of the waste gas furnace water tank cross water pipe 73 are welded on the waste gas combustion furnace water tank 29 to increase the area of fire service.

The bottom of the waste gas burning and extinguishing furnace 75 is provided with a liquefied gas pipe 69 and a nozzle, and an ignition device is arranged to ignite the outlet of the liquefied gas pipe to form a liquefied gas flame 70.

During operation, reinforced in to loading hopper 1 by the forklift, rubbish gets into and dewaters among the rotary dryer 2, and the rubbish drier after the dehydration goes out and is reinforced in the rotatory carbide furnace 9 through carbide furnace hydraulic pressure feeder 10 in turn by dry rubbish tripper 5, and dry rubbish is high temperature carbonization in rotatory carbide furnace 9, and the carbonization granule is discharged out of the stove by discharge end auger 58.

The mixed gas generated in the rotary carbonization furnace 9 is extracted by the blower and is blown into the carbonization furnace body 8 for combustion by matching with air, so as to supply heat for the rotary carbonization furnace 9.

High-temperature gas at the upper part of the carbonization furnace body 8 is sent into the rotary dryer 2 by the blower to dehydrate the garbage, and the gas which is sent out from the rotary dryer 2 is sent into the waste heat boiler 23 by the blower to be distributed with air for combustion so as to supply heat for the waste heat boiler 23.

A chain grate 17 of the burning-out furnace body 7 burns white coal, and the chain grate passes through the lower parts of the carbonization furnace body 8 and the waste heat boiler 23 to supply heat when the carbonization furnace body 8 and the waste heat boiler 23 are heated; or the burning white coal of the burning out furnace chain grate 17 is changed into burning natural gas for supplying heat, thereby effectively reducing the discharge of waste slag and being cleaner and more sanitary.

The gas discharged from the top of the burning-out furnace body 7 is sent into a waste gas combustion furnace by a blower for air distribution combustion, is ignited by liquefied gas, the combustion heat heats a waste gas combustion furnace water tank 29, and hot water in the waste gas combustion furnace water tank 29 is sent into a waste heat boiler 23 by a boiler water injection pump 43 for water supplement.

The tail gas from the waste gas burning furnace 75 enters a water bath dedusting and desulfurizing tower and then is discharged into the air, the waste heat in the whole production process is recycled, and the accessory product is pressure steam which can be used for dining halls, bathing halls, cleaning departments, floors and wards of hospitals.

Claims

1. A hospital garbage burning furnace and burning treatment method comprises the following steps: garbage feeding hopper, rotary dryer, kiln head cover and exhaust pipe, kiln tail cover and air inlet pipe, dry garbage distributor, burning and extinguishing furnace exhaust pipe, burning and extinguishing furnace body, carbonization furnace body, rotary carbonization furnace, carbonization furnace hydraulic feeder, hydraulic push rod, glue discharging oil pipe, rotary carbonization furnace tail cover and exhaust port, carbon powder discharging auger, mixed gas combustion flame, mixed gas pipe, burning and extinguishing furnace chain grate, chain driving wheel, bellows, No. 1 blower air inlet pipe, No. 4 and No. 5 blower air distribution pipe, waste heat boiler, carbonization furnace waste heat coil pipe, boiler lower water chamber, boiler combustion chamber flame spray pipe, chain grate fuel flame, waste gas combustion furnace top cover, waste gas combustion furnace water tank, waste gas combustion furnace exhaust pipe, No. 2 blower air inlet pipe, No. 2 blower spray combustion pipe, No. 3 blower air inlet pipe, waste gas combustion flame spray combustion furnace, waste gas combustion furnace flame spray combustion pipe, No. 2 blower, Boiler water pipe, boiler steam pipe, carbonization furnace body mixed gas pipe, boiler water injection pipe, waste gas combustion furnace water tank hot water pipe, waste gas combustion furnace water tank water filling pipe, boiler water injection pump, basement top gas collecting pipe, carbonization furnace right exhaust pipe, No. 4 air blower gas inlet pipe, No. 5 air blower, No. 4 air blower, carbonization furnace left exhaust pipe, rotary dryer riding wheel, riding wheel bracket, wet ash water tank, wet dust ash, burning out furnace heat preservation cotton and color steel plate, basement, rotary carbonization furnace discharge port, carbon powder discharge auger, No. 6 air blower gas inlet pipe, No. 7 air blower, No. 6 and No. 7 air blower air distribution pipe, No. 7 air blower air inlet pipe, boiler upper water chamber pipe, waste gas furnace heat preservation cotton and color steel plate, waste gas furnace refractory brick, No. 3 air distribution pipe, liquefied gas flame, waste gas, A waste gas furnace top cover, a waste gas furnace water tank cross water pipe, a waste gas furnace water tank overflow pipe and a waste gas burning furnace; the method is characterized in that: the garbage burning furnace is arranged in the basement, the top of the basement is required to be sealed and airtight, the garbage feeding hopper is arranged on the ground level, and the tail gas water bath dedusting tower of the garbage burning furnace can be arranged on the ground level; the rotary dryer is provided with a kiln head cover, an exhaust pipe, a kiln tail cover and an air inlet pipe, a riding wheel track ring is arranged outside a rotary dryer rotating body and is provided with a rotary dryer riding wheel, and the rotary dryer riding wheel is arranged on a riding wheel seat and a riding wheel bracket; the rotary dryer rotor driving device is designed to be provided with a chain wheel at the excircle of the discharging end, a speed reducer with a small chain wheel is provided with a speed regulating motor as power, and a chain is arranged and driven by the chain; the dry garbage distributor at the outlet of the kiln tail cover is connected with the hydraulic feeders of the two rotary carbonization furnaces; the two rotary carbonization furnaces are arranged in the carbonization furnace body, the carbonization furnace body is built by refractory bricks by refractory mortar, the upper part of the carbonization furnace body is in a circular arc shape, and double-layer heat preservation is required, the tail ends of the two rotary carbonization furnaces are provided with a rotary carbonization furnace tail cover and an exhaust port, the lower end outlet is provided with a carbon powder discharge auger, carbon powder in the carbonization furnace is discharged out of the carbonization furnace body, is mixed with fire coal and enters a chain grate for combustion; a glue discharging oil pipe is arranged below the feeding end of the carbon powder auger, and the discharged glue oil is mixed with coal and enters a chain grate of the burning-out furnace for burning; the upper part in the carbonization furnace body is also provided with a carbonization furnace waste heat coil pipe, and a water inlet pipe and a water outlet pipe of the carbonization furnace body waste heat coil pipe are respectively connected with a waste heat boiler; heat source in the carbonization furnace body: firstly, the method comprises the following steps: heating by combustion flames of a chain grate of the garbage burning and extinguishing furnace; secondly, the method comprises the following steps: supplying heat to the mixed gas combustion flame; the mixed gas combustion flame is combusted by gas sprayed from a mixed gas pipe, the mixed gas pipe is connected with a No. 4 blower and a No. 5 blower exhaust pipe, the exhaust pipe is also connected with a gas distribution pipe from a No. 1 blower exhaust pipe, air inlet pipes of the two blowers are respectively connected with a right exhaust pipe and a left exhaust pipe of the carbonization furnace, the two exhaust pipes are respectively connected with tail covers and exhaust ports of the two rotary carbonization furnaces, and the natural gas generated in the rotary carbonization furnaces is combusted in the carbonization furnace body through the gas distribution; the upper parts of the carbonization furnace body and the waste heat boiler are provided with rotary dryer rotors which are arranged in a shape like a Chinese character 'pin'; the rotary dryer rotor, the waste heat boiler and the carbonization furnace body are all arranged in a burning-out furnace body which is arranged in an underground chamber; the rotary dryer has four heat sources: firstly, the method comprises the following steps: waste heat at the top of the carbonization furnace body; secondly, the method comprises the following steps: waste heat at the upper part of the waste heat boiler; thirdly, the method comprises the following steps: a carbonization furnace body mixed gas pipe which is output outwards in the carbonization furnace body is connected with a kiln tail cover and a gas inlet pipe of a rotary dryer, high-temperature gas generated in the carbonization furnace body enters the rotary dryer, the water-containing garbage is heated and dehydrated, and is combined with water vapor to generate partial combustible gas to be output and enter a waste heat boiler to be combusted; fourthly: supplying heat to combustion flame of the chain grate; the heat sources of the waste heat boiler are two: firstly, burning out fuel on a furnace chain grate for supplying heat, secondly, discharging gas in a rotary dryer through a kiln hood cover and an exhaust pipe to be connected with an air inlet pipe of a No. 6 air blower, connecting an air outlet pipe of the No. 6 air blower with a fire spraying pipe of a boiler combustion chamber in a waste heat boiler, distributing air for the No. 7 air blower, connecting an outlet of the No. 6 air blower with an air outlet pipe of the No. 6 air blower, connecting an air inlet pipe of the No. 7 air blower with a gas receiving pipe at the top of a basement, distributing air for the gas output in the rotary dryer through the No. 7 air blower, and feeding the gas into the; the lower part in the burning-out furnace body is provided with a burning-out furnace chain grate which penetrates through the lower ends of the carbonization furnace body and the waste heat boiler and supplies heat to the two rotary carbonization furnaces and the waste heat boiler; an air box is arranged below the chain grate of the burning-out furnace, an air inlet of the air box is connected with an air outlet pipe of a No. 1 blower, and an air inlet pipe of the No. 1 blower is connected with an air receiving pipe at the top of the basement; controlling the temperature in the carbonization furnace body and the waste heat boiler: the inner parts of the two furnace bodies are mainly gas combustion heat, and the furnace temperature is controlled by controlling the linear speed of the chain grate and the air inlet quantity of the No. 1 blower by the driving wheel of the chain grate for maintaining constant temperature in the furnace; a wet ash water tank is arranged below the chain grate of the burning-out furnace, and water is filled in the wet ash water tank; the rear part of the carbonization furnace body is provided with a waste heat boiler, the two sides of the waste heat boiler are provided with boiler water feeding chambers, the middle parts of the waste heat boiler are connected by a plurality of boiler pipes, the lower water chamber is provided with a boiler water injection pipe, the boiler water injection pipe is connected with a boiler water injection pump water outlet pipe, and a boiler water injection pump water inlet pipe is connected with a waste gas combustion furnace water tank hot water pipe; the upper part of the waste heat boiler is provided with a boiler steam pipe, the steam pipe is connected with a steam distribution box, and the steam distribution box is arranged on the ground at the upper part of the basement and used for conveying steam outwards; the upper part of the waste heat boiler is provided with a boiler upper water chamber, and the middle part of the waste heat boiler is connected with the waste heat boiler through a plurality of boiler upper water chamber hot water pipes; the tail end of a burning and extinguishing furnace body of the basement is also provided with a circular waste gas burning and extinguishing furnace, the waste gas burning and extinguishing furnace can also be arranged on the ground, tests prove that the tail gas of the garbage burning and extinguishing furnace body needs to be burnt for the third time, and the temperature during burning is utilized to heat cold water for a waste heat boiler; the waste gas combustion furnace is built by refractory bricks, the outside of the waste gas combustion furnace is provided with waste gas furnace aluminum silicate heat preservation cotton and a color steel plate, the inside of the waste gas combustion furnace is provided with a waste gas combustion furnace annular water tank, a water inlet pipe of the waste gas combustion furnace water tank is connected with a soft water ion exchanger, namely a water outlet pipe of a soft water device, the water inlet pipe of the soft water device is connected with a tap water pipe, water is injected into the waste gas combustion furnace water tank by tap water pressure, and; an overflow pipe is arranged on the water tank of the waste gas combustion furnace, a hot water pipe of the water tank of the waste gas combustion furnace is connected with a water inlet pipe of a boiler water injection pump, and an exhaust pipe of the waste gas combustion furnace is connected with an air inlet pipe of a water bath dust removal desulfurizing tower; the burning and extinguishing furnace gas receiving pipe at the top in the burning and extinguishing furnace body is connected with the air inlet pipe of a No. 2 blower outside the waste gas burning and extinguishing furnace, the air outlet pipe of the No. 2 blower is connected with the No. 2 blower gas spraying and burning pipe, waste gas burning and extinguishing flame is formed in the waste gas burning and extinguishing furnace, air is distributed by a No. 3 blower, the air outlet pipe of the No. 3 blower is combined with the No. 2 blower gas spraying and burning pipe, the air inlet pipe of the No. 3 blower is connected with the gas receiving pipe at the top of an underground chamber, a waste gas explosion-proof device is arranged at the center of a top cover of the waste gas furnace, a multilayer cross-shaped hot water pipe is arranged in the middle of an annular water tank of the waste gas burning and extinguishing furnace, a liquefied gas pipe nozzle is arranged at the bottom.

2. The hospital waste incineration furnace and incineration disposal method according to claim 1, characterized in that: a garbage feeding hopper at the feeding end of the rotary dryer is used for feeding materials on the ground by a forklift or a belt conveyor.

3. The hospital waste incineration furnace and incineration disposal method according to claim 1, characterized in that: the hydraulic push rod is used for pushing the hydraulic feeder to feed materials into the two rotary carbonization furnaces in turn in a timed manner.

4. The hospital waste incineration furnace and incineration disposal method according to claim 1, characterized in that: the water content of the garbage baked by the rotary dryer is required to be within 10-12%.

5. The hospital waste incineration furnace and incineration disposal method according to claim 1, characterized in that: the upper part in the garbage burning furnace body and the arc furnace top at the upper part of the carbonization furnace body are required to be free from air leakage, and the upper part is provided with a garbage burning furnace gas receiving pipe and a carbonization furnace body mixed gas pipe which respectively output mixed gas outwards.

6. The hospital waste incineration furnace and incineration disposal method according to claim 1, characterized in that: after being combined, the tail covers and the exhaust ports of the two rotary carbonization furnaces respectively enter air inlet pipes of No. 6 and No. 7 air blowers, and are respectively fed into the two rotary carbonization furnace halls for combustion after oxygen distribution.

7. The hospital waste incineration furnace and incineration disposal method according to claim 1, characterized in that: and dust leaked from the chain grate of the burning and extinguishing furnace enters the wet ash water pool, and the ash is discharged into the wet ash water pool at the ash discharging end of the chain grate of the burning and extinguishing furnace.

8. The hospital waste incineration furnace and incineration disposal method according to claim 1, characterized in that: burning white coal by a burning and extinguishing furnace chain grate in the burning and extinguishing furnace; or the burning white coal of the burning out furnace chain grate is changed into burning natural gas to supply heat for the rotary carbonization furnace.