WO2005124233A1 - Procede et systeme sous forme de boite servant a incinerer des dechets - Google Patents

Procede et systeme sous forme de boite servant a incinerer des dechets Download PDF

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Publication number
WO2005124233A1
WO2005124233A1 PCT/CN2004/000811 CN2004000811W WO2005124233A1 WO 2005124233 A1 WO2005124233 A1 WO 2005124233A1 CN 2004000811 W CN2004000811 W CN 2004000811W WO 2005124233 A1 WO2005124233 A1 WO 2005124233A1
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WO
WIPO (PCT)
Prior art keywords
garbage
ceramsite
box
waste
furnace
Prior art date
Application number
PCT/CN2004/000811
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English (en)
Chinese (zh)
Inventor
Weitian Zhang
Original Assignee
Weitian Zhang
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Weitian Zhang filed Critical Weitian Zhang
Publication of WO2005124233A1 publication Critical patent/WO2005124233A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J1/00—Removing ash, clinker, or slag from combustion chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44—Details; Accessories
    • F23G5/442—Waste feed arrangements
    • F23G5/444—Waste feed arrangements for solid waste
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2203/00—Furnace arrangements
    • F23G2203/60—Mobile furnace
    • F23G2203/601—Mobile furnace carried by a vehicle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2203/00—Furnace arrangements
    • F23G2203/80—Furnaces with other means for moving the waste through the combustion zone
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00—Treatment devices
    • F23J2219/30—Sorption devices using carbon, e.g. coke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2900/00—Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes
    • F23J2900/01002—Cooling of ashes from the combustion chamber by indirect heat exchangers

Definitions

  • the invention relates to a garbage incineration method and a box-type garbage incineration system.
  • the method and the system have lower requirements for the calorific value of the garbage (200 kcal / kg), and are particularly suitable for mixed garbage.
  • the method and the system can harmless the garbage Chemical treatment, large processing capacity, up to 1000-5000 tons / day.
  • the characteristic is that the top surface of the furnace body has a garbage dropping hole, the furnace body has a flatbed truck and a walking rail, and the surrounding of the furnace body has a "#"-shaped guide rail arranged in a reciprocating manner.
  • the garbage truck can run the incineration garbage repeatedly, and the daily waste treatment capacity can be Up to 300 tons, the advantages are reasonable design, simple structure, easy manufacture, convenient installation and use, low cost, large amount of garbage disposal, less pollution, easy promotion and application, and convenient operation. Suitable for middle and lower cities and towns.
  • the patent is relatively large, the incineration is not sufficient, the thermal efficiency is low, and it is easy to cause new pollution to the atmosphere. Therefore, there is a need to propose a waste incineration method and a box-type waste incineration system.
  • the object of the present invention is to provide a waste incineration method and a box-type waste incineration system.
  • the method and the system have lower requirements for the calorific value of waste (200 kcal / kg), and are particularly suitable for mixed waste.
  • the method and system can carry out waste treatment. Harmless treatment, the processing capacity can reach 1000-5000 tons / day.
  • a garbage incineration method uses a continuous box-type garbage incinerator for garbage incineration.
  • the garbage incinerator has two upper and lower parallel tracks, and a plurality of box-type furnace cars are arranged on the track.
  • a grate is provided at the bottom of the box, and wheels are provided on both sides of the box;
  • the upper layer of the waste incinerator is sequentially equipped with a ceramsite distributor, a garbage distributor, a preheating device, and an ignition device;
  • a pressure header, the top of the negative pressure header is in communication with the bottom of the furnace car, the bottom of the negative pressure header is in communication with the tops of multiple negative pressure ducts arranged in parallel, and the middle of the negative pressure duct is in communication with a heat collecting header,
  • the bottom of the overturning star wheel of the furnace body bracket is equipped with a discharging hopper, which is provided with a crushing device at the bottom; the lifting star wheel and the driving device are powered Connection
  • the ceramsite ball blank is laid in the box-type furnace vehicle through the ceramsite distributor to form a bottom layer, and then the garbage is laid on the bottom layer by a garbage distributor;
  • the preheating device When the box furnace car reaches the position of the preheating device, the preheating device is used to preheat the garbage in the box furnace car, and the preheating temperature is 200-300 ° C ;
  • the garbage is ignited by the igniter to control the incineration temperature of the garbage to 1 100 ⁇ 1200 ° C ; and the exhaust system is activated to generate a negative pressure at the bottom of the box furnace car and guide the garbage from the top to the bottom Incineration;
  • heating equipment is used to heat the waste in the box furnace car to supply oxygen.
  • the dump When the box furnace car reaches the bottom of the star wheel of the dump, the dump is unloaded and the incinerated clinker is discharged into the crusher for crushing treatment so that the particle size of the slag particles is less than 30 mm;
  • the crushed clinker is collected by a conveying device to a screening device for sieving treatment.
  • the complete ceramsite is collected in the ceramsite silo, the ash is collected in the ash silo, and the slag granulate is collected in the slag silo.
  • the transfer device transfers the ash to a ball-making workshop, generates ceramsite ball blanks, and then transfers it to the ceramsite distributor for backup;
  • the flue gas and dust generated by the incineration are collected and sent to the flue gas treatment pipeline through the smoke exhaust pipe; in the flue gas treatment pipeline, the multi-pipe dust collector and the bag dust collector are used for purification treatment; the dust collector is collected by the transmission device.
  • the ash content is transferred to a ball-making workshop to generate ceramsite ball blanks, which are then transferred to a ceramsite distributor for future use.
  • a continuous waste incineration system includes a waste incinerator, the waste incinerator is equipped with two upper and lower parallel tracks, and a plurality of box-type furnace cars are arranged on the track.
  • Granular distributor garbage distributor, preheating device, ignition device; a negative pressure header is arranged in the middle of the furnace body bracket, and the top of the negative pressure header is in communication with the bottom of the furnace car, and the bottom of the negative pressure header is connected with a plurality of bars.
  • the tops of the negative-pressure air ducts arranged in parallel are communicated, the middle of the negative-pressure air ducts is communicated with a heat collecting header, the bottom of the rollover star wheel of the furnace body bracket is equipped with a discharging hopper, and the bottom of the discharging hopper is provided with a crushing device, two Grade screening device and magnetic separation device; there is a garbage ground bin connected to the garbage distributor through a garbage conveying line to continuously provide garbage to the waste incinerator; there is an ash conveying line connected to the screening device to ash
  • the ceramsite ball is made from ash as the main raw material in a ball-making workshop, and the ceramsite ball is sent to the ceramsite distributor through a conveyor line, and the ceramsite is made of ceramsite.
  • the feeder enters the garbage incinerator; there is a flue gas treatment pipeline, which is provided with a waste heat boiler, an air heat exchanger, a dust collector, a fan and an activated carbon adsorption device; and an ash transportation line is connected to the dust collector , Transfer the ash to the ball-making workshop.
  • a flue gas treatment pipeline which is provided with a waste heat boiler, an air heat exchanger, a dust collector, a fan and an activated carbon adsorption device; and an ash transportation line is connected to the dust collector , Transfer the ash to the ball-making workshop.
  • the invention has lower requirements for the calorific value of waste, and all wastes of 200 kcal / kg can be incinerated.
  • the invention has a simple structure, low investment, good incineration conditions, a processing capacity of 1000-5000 tons / day, and low operating cost.
  • the present invention adopts a two-stage igniter and dryer to save energy.
  • a waste heat boiler can be used to recover waste heat for power generation or centralized heating. At the same time, it has obvious smoke and dust reduction effects, and its social benefits are huge.
  • the present invention adopts activated carbon fiber adsorption box to completely purify exhaust gas.
  • the present invention uses ceramsite pellets as a base material, and sintering of ceramsite can be completed without adding fuel. Since sintered ceramsite is a high-quality water-retaining material in soilless cultivation and arid regions, the market prospect is broad, so garbage can be realized Commercialization of ashes.
  • the present invention can harmlessly utilize municipal sludge and waste water.
  • FIG. 1 Top view of the waste incinerator used in the present invention (top view of Figure 1)
  • FIG. 4 Structural diagram of the hoisting star wheel used in the present invention (A-A sectional view of Fig. 1) Fig. 5. Operating diagram of the hoisting star wheel used in the present invention (E-E cross-sectional view in Fig. 4) Fig. 6. Thermal device structure diagram (C-C sectional view of Fig. 1) Fig. 7 Schematic diagram of the dispenser used in the present invention (enlarged view of Part B of Fig. 2) Fig. 8 Schematic diagram of the structure of the negative pressure header used in the present invention (D_ in Fig. 1 Sectional view D) Fig. 9 Schematic diagram of the water-sealing channel used in the present invention (view F in Fig. 8) Fig. 10 Top view of the sludge zipper used in the present invention (top view of Fig. 9)
  • Figure 11 Schematic diagram of the structure of the adsorption box used in the present invention
  • FIG. 12 Schematic diagram of the distribution of the filter element of the adsorption box used in the present invention (Fig. 1 G-G sectional view) Fig. 13, Structural diagram of the filter element used in the present invention (Fig. 11 is a partial enlarged view) Fig. 14, Diagram of the waste incineration system of the present invention
  • the waste incinerator used in this embodiment has a furnace body support 1, which is a metal frame having a length of 50 m to 200 m.
  • the upper part of the bracket is provided with two upper and lower parallel tracks 7, namely, an upper track and a lower track.
  • the upper track is a supporting track, and the lower track is a suspension track.
  • a plurality of box-type furnace cars 8 are provided on the track.
  • Box A furnace grate is provided at the bottom of the body, and wheels 803 are provided on both sides of the box body; one end of the track on the furnace body support is provided with a lifting star wheel 30, and the other end of the track is provided with a turning star wheel 3 1, the lifting star
  • An arc-shaped auxiliary track 701 is provided on one side of the wheel and the rollover star wheel; the upper layer of the furnace body bracket is sequentially provided with a garbage distributor 3, a preheating device 4, and an ignition device 6, and an igniter is provided in the device.
  • the igniter is arranged above the box-type furnace car.
  • the igniter is a conventional gas igniter. In order to improve the reliability of ignition, an auxiliary igniter may be provided.
  • the middle layer of the furnace body bracket is provided with a negative pressure header 9, and the top of the negative pressure header is in communication with the bottom of the furnace car.
  • the bottom of the negative pressure header is in communication with the tops of a plurality of negative pressure air pipes 91 arranged in parallel.
  • the bottom of the tube is in communication with a water-sealing channel 50 on one side of the furnace body support, the middle of the negative pressure air pipe is in communication with a heat collecting header 40, and a dump hopper is installed at the bottom of the overturning star wheel on the furnace body support.
  • the bottom of the unloading hopper is provided with a crushing device 13; the lifting star wheel is dynamically connected with the driving device.
  • the box furnace car has a trough-shaped cast car body 801, a grate 804 is provided at the bottom of the car body, and wheels 803 are provided at both sides of the car body.
  • the car body has U-shaped ports at the front and rear ends. When multiple furnace cars are connected one after the other, a long channel can be formed.
  • the box furnace car is provided with a propulsion journal 802 coaxially mounted on both sides of the box body. This journal is used in conjunction with a lifting star wheel.
  • the bottom of the furnace car is provided with a sliding seal device, and the top of the negative pressure header is sealed with the sliding seal device.
  • the sliding seal device is composed of a positioning pin 806, a spring 807, a sealing moving block 808, a sealing static block 805, and an oil supply pipe 809.
  • the positioning pin, the spring, and the sealing moving block are installed on the bottom of the furnace car, and the static block and the oil supply are sealed.
  • the tube is mounted on the top of the negative pressure header.
  • one end of the track on the furnace body support is provided with a lifting star wheel 30, and the other end of the track is provided with a rollover star.
  • Wheel 31 the hoisting star wheel is a double wheel, a hub 33 is provided on the central shaft 32 thereof, a wheel disc 34 is provided at both ends of the hub, and a plurality of gear teeth are provided on the wheel disc.
  • the hoisting star wheel is mounted on the furnace body support through a bearing seat 35, and a central shaft thereof is power-connected to a reducer 36, and an input end of the reducer is connected to a driving motor 37.
  • the structure of the rollover star wheel is exactly the same as that of the lifting star wheel.
  • An arc-shaped auxiliary track 701 is provided on one side of the hoisting star wheel, and the center of the track coincides with the center of the hoisting star wheel, and an arc-shaped auxiliary track is also provided on the side of the roll-over star wheel, and the center of the track coincides with the center of the star-turning wheel.
  • a plurality of furnace cars are connected end-to-end on a track, and they are driven by a rear vehicle that propels a front vehicle and transmits a drive.
  • the teeth of the lifting star wheel are engaged with the journal of a furnace car to drive the furnace car along the upper track.
  • the furnace car sequentially transmits power to a furnace car at the end of the upper track.
  • the journal of the furnace car and the rollover star The wheels enter the meshing state, and their wheels leave the upper track and enter the arc-shaped auxiliary track.
  • the task of overturning the car body to remove the slag is completed, and then the arc-shaped auxiliary track is separated from the lower track.
  • Running on the lower track when upside down When the furnace car reaches the position of the lifting star wheel, its wheels leave the lower track and enter the arc-shaped auxiliary track.
  • the journal of the furnace car and the lifting star wheel are in meshing state.
  • the lifting star wheel rotates clockwise to lift the furnace car to Get on the starting point of the track, 'and flip the furnace car back to normal.
  • a ceramsite distributor 2 is provided before the garbage distributor, and a double-cylinder presser 301 is disposed between the garbage distributor and the preheating device.
  • the ceramsite distributor has a conventional structure and is composed of a hopper 203, a roller 201, and a bottom scraper 202.
  • the structure of the garbage distributor is basically the same as that of the ceramsite distributor.
  • the ceramsite distributor and the garbage distributor are sequentially arranged above the walking track of the box furnace car, and its height can be adjusted. When the box furnace car enters the lower position, the ceramsite ball is first laid into the furnace car by the ceramsite distributor.
  • the blank is laid on the grate as a primer layer 38, and then the garbage layer 39 is covered on the primer layer by a garbage distributor.
  • the ceramsite ball is made of ash and glass powder produced by incineration of garbage, and it is sintered into ceramsite with garbage as a fuel. Dioxins, heavy metals and other harmful substances in the garbage ash will be mixed with glass powder. In the molten state, they become a glass ore phase.
  • the ceramsite is a substance that is not easily degraded and insoluble. Thereby, the degree of purification of garbage is improved.
  • the double-barrel presser is provided with two stages in front and back, and each stage is provided with a press roller support 302.
  • the press roller support is provided with one to three press rollers 303, and the press is disposed on the box furnace car. Above, its height can be adjusted.
  • the presser compacts the garbage. After the density of the garbage is increased, the combustion efficiency and temperature can be improved, and the complete combustion of the garbage can be promoted.
  • a preheating device is provided before the ignition device.
  • the preheating device is provided with a preheating cover 41 which is provided in a box furnace.
  • a shroud grille 42 is installed in the cover body, and a hot air inlet 43 is provided on the top of the cover body.
  • the length of the cover body is 10 to 20 meters.
  • the hot air for preheating the garbage is installed on the exhaust pipe. Air heat exchanger provided. When the box furnace car with garbage enters its lower position, the hot air sprayed from the splitter grille preheats it, increasing its temperature and dryness to prepare for combustion.
  • a heating device 5 is provided behind the ignition device, and the heating is arranged above the walking track of the box furnace car.
  • the specific structure and The pre-heating device is exactly the same and will not be described in detail here.
  • the length of the heating device is 30 to 100 meters.
  • the middle layer of the furnace body bracket is provided with a negative pressure header 9, and the top of the negative pressure header and the furnace
  • the bottom of the car communicates with each other, and a negative pressure is generated at the bottom of the box furnace car, which guides the garbage to burn from the top to the bottom.
  • the header is a negative pressure cavity that is almost as long as the upper rail.
  • the bottom of the negative pressure header is arranged in parallel with a plurality of negative pressures installed at an angle.
  • the top of the air duct 91 is connected, and a valve 92 is provided on the negative pressure duct, and the valve can be closed at any time to repair a negative pressure duct.
  • the negative-pressure air pipe is communicated with the water-sealing channel 50 on one side of the furnace body support.
  • the negative pressure air pipe is installed obliquely, which can separate the particulates carried in the waste incineration flue gas from the flue gas, and fall into the water-sealed channel under the effect of inertia and gravity.
  • the middle part of the negative pressure air duct communicates with a heat collecting header 40, and a dust removal grille 402 can be provided at the connection part.
  • the dust removal grille further separates particles in the incineration flue gas, and the separated particles can fall along the negative pressure air duct.
  • the length of the heat collecting header is equivalent to that of the negative pressure header.
  • a waste heat boiler 901 is arranged in the heat collecting header.
  • the heat energy collected by the waste heat boiler can be used for waste heat power generation.
  • the heat collecting box is provided with a smoke exhaust pipe 401.
  • the smoke exhaust pipe is respectively provided with an air heat exchanger 403, a multi-tube dust collector 15, an induced draft fan 16, an activated carbon adsorption box 17, and a chimney 20.
  • the hot air output from the air heat exchanger is supplied to the preheating device and the heating device through a pipeline.
  • water is provided at the bottom of the water-sealing channel, and a sludge zipper 501 is provided in the water-sealing channel.
  • the zipper is mounted on a roller support 503, and the roller support There are multiple idlers.
  • the zipper is composed of a chain 502, a scraper 504, a head wheel 505, a tail wheel 506, and a driving motor 507, which can continuously clean the sludge in the water-sealed channel and discharge the sludge into a sludge bin 508.
  • a dump hopper 12 is installed at the bottom of the dump star wheel, and a crushing device 13 is provided at the bottom of the dump; the slag discharged by the furnace car undergoes a heat-resistant vibration after being processed by the crusher.
  • the sieve 14 is then sent to a screening device, and the slag is separated into slag, ceramsite and ash by the screening device.
  • a dust removal hood 11 is provided above the overturning star wheel.
  • the tail dust removal hood is installed on the furnace body bracket to collect the dust generated by the slag discharged by the furnace car, and pass the dust collector 18, fan 19, The chimney 20 is dedusted and purified.
  • an activated carbon fiber adsorption box 17 is provided in the smoke exhaust pipe.
  • the adsorption box can absorb and convert harmful substances such as dioxin carried in the flue gas into harmless substances.
  • the adsorption box has a rectangular box body 171, the upper part of which is an adsorption chamber 172, the lower part of which is a gas collection chamber 173, the bottom is provided with an air inlet 174, and the top is provided with an exhaust port 175.
  • the adsorption chamber is provided with a plurality of cylindrical An adsorber 176, which is composed of an inner skeleton 177, an outer skeleton 178, and an activated carbon fiber felt 179.
  • the inner and outer skeletons are cylindrical, and a plurality of air holes 180 are evenly distributed thereon.
  • the activated carbon fiber felt is sandwiched between two skeletons. between.
  • the adsorption material in the adsorption box may be activated carbon fiber felt, or activated carbon particles may be used.
  • the ceramsite ball blank is laid in the box-type furnace vehicle through the ceramsite distributor to form a bottom layer, and then the garbage is laid on the bottom layer by a garbage distributor;
  • the garbage is ignited by the igniter, and the incineration temperature of the garbage is controlled to 1 100 ⁇ 120 (TC ; and the exhaust system is activated to generate a negative pressure at the bottom of the box furnace car, and guide the garbage from the top to the bottom Incineration;
  • heating equipment is used to heat the waste in the box furnace car to supply oxygen.
  • the dump When the box furnace car reaches the bottom of the star wheel of the dump, the dump is unloaded and the incinerated clinker is discharged into the crusher for crushing treatment so that the particle size of the slag particles is less than 30 mm;
  • the crushed clinker is collected by a conveying device to a screening device for sieving treatment.
  • the complete ceramsite is collected in the ceramsite silo, the ash is collected in the ash silo, and the slag granulate is collected in the slag silo.
  • the transfer device transfers the ash to a ball-making workshop, generates ceramsite ball blanks, and then transfers it to the ceramsite distributor for backup;
  • the flue gas and dust generated by the incineration are collected and sent to the flue gas treatment pipeline through the smoke exhaust pipe; in the flue gas treatment pipeline, the multi-pipe dust collector and the bag dust collector are used for purification treatment; the dust collector is collected by the transmission device.
  • the ash content is transferred to a ball-making workshop to generate ceramsite ball blanks, which are then transferred to a ceramsite distributor for future use.
  • the ball-making workshop described in this embodiment includes a ceramsite batching silo, a mixer, and a disc pelletizer.
  • the mixer is a conventional cylindrical mixer.
  • a compaction mechanism is used to compact the garbage; when a box furnace car When the section between the distributor and the ignition device is reached, the preheating device is used to preheat the garbage in the box furnace car; after the incinerated clinker is screened, the selected ceramsite is cooled first. Then, the ceramsite silo is collected; the flue gas and dust generated by the incineration are purified in the flue gas treatment pipeline by an activated carbon adsorption device; the energy in the flue gas is collected by a waste heat boiler for waste heat Generate electricity or use it for district heating.
  • a continuous waste incineration system uses the waste incinerator described in the first embodiment.
  • a waste floor bin 60 is connected to the waste distributor by a waste transfer line to continuously provide waste to the waste incinerator;
  • a ceramsite billet 70 feeds the ceramsite ball into the ceramsite distributor through a conveying line, and the ceramsite ball is continuously provided to the waste incinerator by the distributor; there is an ash transportation line and the heat resistance
  • the vibrating screen 14 is connected, and the ash is transferred to a ball-making workshop, where the ceramsite ball is made with ash as the main raw material, and the ceramsite ball is sent to the ceramsite distributor through a conveyor line.
  • the ceramsite distributor enters the garbage incinerator; there is a flue gas treatment pipeline, which is provided with a waste heat boiler, an air heat exchanger 403, a multi-tube dust collector 15, a bag dust collector 151, a fan 16, an activated carbon adsorption device 17 and the chimney; an ash transportation line is connected to the dust collector 18, and the ash separated by the dust collector is transported to the ceramsite batching ground silo 71 of the ball-making workshop.
  • the ball-making workshop described in this embodiment includes a ceramsite batching warehouse 71, a cylinder mixer 72, a 'disc pellet machine 73, and a ceramsite dryer 74.
  • the mixer is a conventional cylinder mixer.
  • Ceramsite pellets are made in a ball-making workshop by using ash as a main raw material through a mixer, a disc pelletizer, and dried by a ceramsite dryer, and the ceramsite pellets are sent through a conveyor line Into the ceramsite silo 70.
  • the crusher After the slag discharged by the furnace car is processed by the crusher, the ash is separated by a heat-resistant vibrating screen 14, and the remaining slag passes through a ring cooler 75, a magnetic separator 76, and finally is sent to a screening device 77.
  • the screening device separates the slag into slag and ceramsite, and sends them to the slag bin 78 and the ceramsite .79 respectively.
  • the dust generated by the furnace car discharging and discharging slag is collected through the tail dust removal cover 11 installed on the furnace body support, and is cleaned by the dust collector 18, the fan 19, and the chimney 20 in the pipeline, and the ash separated by the dust collector passes A conveying line conveys the collected ash to the ceramsite batching silo in the ball-making workshop.
  • the hot air output from the air heat exchanger is supplied to the preheating device 4 and the heating device 5 through a pipeline.
  • the steam output from the waste heat boiler 901 is supplied to the steam turbine generator set through a pipeline.
  • the unit includes a steam drum 902, a turbo-generator set 903, and a water pump 904.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • a garbage storage yard is disposed upstream of a garbage dump, and the garbage dump is also provided with A sewage conveying pipeline and a sludge conveying pipeline are respectively connected to the ball-making workshop, and waste garbage and urban sludge are conveyed to the ball-making workshop as raw materials for ceramsite pellets.
  • a garbage storage yard 63, a magnetic garbage separator 62, and a garbage crusher 61 are disposed upstream of the garbage ground bin.
  • the garbage storage yard is also provided with a sewage transportation pipeline and a sludge transportation pipeline.
  • the sewage transportation pipeline and the sludge transportation pipeline are respectively connected to the ball-making workshop, and an urban sludge silo 64 is connected to the ball-making workshop.
  • the waste sewage, sludge and sludge generated from the urban sewage treatment plant are transported to the ball-making workshop as the raw material of the ceramsite pellets.
  • the first method of formulating the ceramsite ball blank is to mix glass powder with garbage ash or slag ash to make balls, the weight ratio of which is glass powder 1-10, garbage ash or slag ash 90-99.
  • the second method for preparing the ceramsite ball blank is to mix glass powder, sludge, and garbage ash or slag ash into balls.
  • the weight ratio is glass powder 1-10, sludge 10-30, and waste ash or slag ash 60. — 80.
  • the third method for preparing the ceramsite ball material is to mix algal soil, coal powder and garbage ash or slag ash
  • the weight ratio of pellets is 1-5 of algal soil, 1-5 of coal powder, 80-90 of garbage ash or slag ash.
  • the method of treating pottery by waste incineration can be called sintering method or melting method.
  • the ceramsite pellets are sintered at a high temperature of 600-1000 degrees to form a material with stable physicochemical properties and extremely hard materials. Dioxins and heavy metals in waste ash Harmful substances will be combined with glass powder in the molten state to become a glass mineral phase.
  • the ceramsite has high stability, is not easily degraded and insoluble in water, but can retain water and fertilizer.

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  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Gasification And Melting Of Waste (AREA)

Abstract

L'invention concerne un procédé et un système sous forme de boîte servant à incinérer des déchets. Ce système est composé d'un incinérateur de déchets, de deux orbites parallèles supérieur et inférieur fixés à l'incinérateur, lesdits orbites étant situés dans un véhicule comprenant plusieurs incinérateurs sous forme de boîte. Ce système comprend également un réservoir à déchets relié à la partie de distribution de schiste expansé par l'intermédiaire d'une bande de transport et ce réservoir à déchets alimente l'incinérateur en continu. Ce système comprend, de plus, une bande de transport servant à transporter les cendres et reliée à la partie de suppression des cendres, ces dernières étant transportées vers l'atelier de fabrication de schiste expansé. Les cendres, en tant que matériaux de base, sont transformées en schiste expansé dans l'atelier de fabrication et le schiste expansé est transmis à la partie de distribution par l'intermédiaire d'une bande de transport et pénètre dans l'incinérateur. Ce système comporte également un conduit servant à traiter la fumée et consistant en une chaudière de réchauffement des déchets, en un aspirateur de poussière, en un échangeur de chaleur, en un ventilateur et en un équipement d'absorption de carbone actif. Ce système comporte, de plus, une bande de transport reliée à l'aspirateur de poussière afin de transporter les cendres jusqu'à l'atelier de fabrication de schiste expansé.
PCT/CN2004/000811 2004-06-21 2004-07-15 Procede et systeme sous forme de boite servant a incinerer des dechets WO2005124233A1 (fr)

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CN108728596A (zh) * 2018-07-27 2018-11-02 马鞍山市双益机械制造有限公司 一种液态钢渣的粒化处理设备及处理方法
CN109737417A (zh) * 2019-02-18 2019-05-10 白纪阳 垃圾焚烧发电厂的垃圾发酵处理装置
CN112128772A (zh) * 2020-09-08 2020-12-25 新疆中泰矿冶有限公司 固废综合回收利用装置及其使用方法
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CN104990089B (zh) * 2015-07-20 2017-06-23 重庆盎瑞悦科技有限公司 固废无害化高温焚烧处理***及方法
CN108728596A (zh) * 2018-07-27 2018-11-02 马鞍山市双益机械制造有限公司 一种液态钢渣的粒化处理设备及处理方法
CN109737417A (zh) * 2019-02-18 2019-05-10 白纪阳 垃圾焚烧发电厂的垃圾发酵处理装置
CN109737417B (zh) * 2019-02-18 2024-04-09 白纪阳 垃圾焚烧发电厂的垃圾发酵处理装置
CN112128772A (zh) * 2020-09-08 2020-12-25 新疆中泰矿冶有限公司 固废综合回收利用装置及其使用方法
CN113654055A (zh) * 2021-07-27 2021-11-16 安徽斯的得电力工程有限公司 一种焚化炉飞灰吸纳装置
CN113654055B (zh) * 2021-07-27 2024-01-30 安徽斯的得电力工程有限公司 一种焚化炉飞灰吸纳装置

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