CN113531540A - Portable solid waste pyrolysis incineration system and treatment method - Google Patents

Abstract

The invention discloses a portable solid waste pyrolysis incineration system and a treatment method. The device mainly comprises a movable support, a main body device, an air supply device, a slag discharge device and an igniter; wherein install air feed device on the movable support, movable support and main part device movable mounting can drive the pyrolysis system of burning and remove. The invention adopts the independently designed pyrolysis cavity structure, combustible gas generated by pyrolysis of solid waste enters the combustion cavity through the small holes on the wall surface of the pyrolysis cavity to be combusted, on one hand, combustion-supporting air in the air preheating cavity enters the combustion cavity after exchanging heat with the wall surface of the combustion cavity, so that the combustion is more sufficient, and on the other hand, high-temperature flue gas in the combustion cavity exchanges heat with the wall surface of the pyrolysis cavity, so that the solid waste is further pyrolyzed. After being preheated, combustion-supporting air enters the slag discharging device and enters from the bottom of the pyrolysis cavity, so that carbide generated after pyrolysis of the solid waste is promoted to be further combusted, and the functions of safety and environmental protection are realized.

Description

Portable solid waste pyrolysis incineration system and treatment method

Technical Field

The invention belongs to the field of solid waste incineration technology and equipment, and particularly relates to a portable solid waste pyrolysis incineration system and a treatment method.

Background

With the rapid development of economy and the continuous acceleration of urbanization process in China, the generation amount of solid waste is continuously increased. Solid waste does not migrate and spread around as much land as waste gases and water, and must occupy a large amount of land. According to statistics, the industrial solid waste accumulated in China is 60 hundred million tons, the household garbage is 5 hundred million tons, 1000 million tons of solid waste can not be treated every year and is accumulated at the outskirts or two sides of a highway, and the land of tens of thousands of hectares is invaded and swallowed, so that effective measures are urgently needed to be taken, the problems that the solid waste occupies the land and pollutes the environment are solved, and the reduction, the harmlessness and the recycling of the solid waste are realized.

The treatment technology of the solid waste comprises physical treatment, chemical treatment, biological treatment, heat treatment, solidification treatment and the like. Wherein, the heat treatment technology comprises two technologies of direct incineration and pyrolysis gasification. The direct burning method can realize the decrement and weight reduction of the solid waste, simultaneously thoroughly kill various pathogens, has obvious advantages in the aspects of environmental protection and resource utilization, and is widely applied. However, the conventional incineration treatment equipment has the problems of insufficient combustion, large dust generation amount, easy generation of toxic and harmful components such as dioxin, nitrogen oxide and the like, secondary pollution and the like. The pyrolysis gasification method is carried out in a poor oxygen or anoxic atmosphere, the generation of toxic and harmful components such as dioxin, nitrogen oxide and the like is reduced in principle, the smoke generation amount is reduced, and the heavy metal is solidified in molten slag, so that secondary pollution is not easily caused. The pyrolysis gasification method has wide application prospect in the aspect of solid waste treatment.

At present, solid wastes such as municipal solid wastes and the like in various parts of China are mostly treated by adopting a mode of building a centralized incineration power plant, but for remote areas and special places such as remote mountain areas, suburban factories, military places, field camps and the like, the factors such as transportation cost, transportation difficulty and the like are considered, so that the solid wastes are difficult to be brought into a centralized incineration disposal system in the city, and the solid wastes do not have the condition for building a large incineration device. Therefore, the development of a solid waste incineration system and apparatus having a reasonable structure and a small size is increasingly required.

Disclosure of Invention

The invention aims to provide a miniaturized and movable portable solid waste pyrolysis incineration system and device aiming at the requirements of the prior art, which can be operated by a single person, does not need to use external fuel, has high incineration efficiency and low pollutant discharge amount, has the characteristics of simple and convenient assembly and disassembly, light and handy whole body, convenient movement, simple operation, small maintenance amount, energy conservation and environmental protection, and can well solve the problem of solid waste treatment in remote areas and some special places.

In order to achieve the purpose, the invention discloses the following technical scheme:

a portable solid waste pyrolysis incineration system is characterized in that: comprises a movable bracket, a main body device, an air supply device, a slag discharging device and an igniter; wherein, the movable bracket is provided with an air supply device, and the movable bracket 9 is movably arranged with the main body device and can drive the pyrolysis incineration system to move;

the main body device is in a concentric circle sleeve form and sequentially comprises a pyrolysis cavity 1, a combustion cavity 2 and an air preheating cavity (3) from inside to outside; the top of the pyrolysis cavity is communicated with a feed hopper 11, the bottom of the pyrolysis cavity is of a grate structure, the middle part of the side wall is provided with an air hole communicated with the combustion cavity, and the bottom of the side wall is fixed with the grate by four brackets; the top of the combustion chamber is closed and provided with a smoke outlet 14, the bottom of the combustion chamber is closed and supports the whole main body device through a fixed support 7, and an ignition port 15 with a sealing cover is arranged below the side wall; the top of the air preheating cavity 3 is closed and provided with an air inlet 13, the top of the preheating cavity is lower than the tops of the pyrolysis cavity and the combustion cavity, the bottom of the preheating cavity is higher than the bottoms of the pyrolysis cavity 1 and the combustion cavity 2, the preheating cavity is respectively communicated with the combustion cavity and the slag discharge device 6 through three air pipes 4, and each air pipe 4 is respectively provided with an adjusting valve 5; the air supply device comprises: a blower 8 and a hose 12; the air outlet of the blower is communicated with the air inlet 13 through a hose 12; the slag discharging device 6 is a cuboid metal box, the top of the box body is communicated with a fire grate of the pyrolysis cavity, one side surface of the box body is communicated with the air pipe 4 of the air preheating cavity 3, and the other side surface is of a movable drawing structure, so that ash slag can be conveniently discharged;

the movable support adopts a cart, the cart includes carrying portion and hand portion, and wherein the up end of carrying portion levels the bottom that sets up and is used for holding the main part device, and a set of travelling wheel 10 is installed to the lower extreme one side symmetry of carrying portion, and a support frame is made to the opposite side an organic whole, and support frame and travelling wheel form four point support under the fixed state and ensure that incineration barrel and ground are in vertical state, one side of carrying portion is along making rather than up end vertical direction an organic whole the hand portion, this hand portion is binded fixedly with the main part device through chain 16.

The portable solid waste pyrolysis incineration system is characterized in that the air pipe 4 and the side wall of the combustion chamber 2 enter tangentially at an angle of 45 degrees so that air and pyrolysis gas are fully mixed and combusted.

The igniter is a clamping type flame gun, and a gun body can extend into the combustion cavity 2 through an ignition port 15 for ignition.

The invention further discloses an incineration method of the portable solid waste pyrolysis incineration system, which is characterized by comprising the following steps:

1) moving the solid waste pyrolysis incineration device to a region where the waste is to be treated, putting the waste into a feed hopper 11, and fully piling the waste in a pyrolysis cavity until the material level is in the middle position of the feed hopper 11;

2) an igniter extends into the combustion cavity through an ignition port 15 to ignite the waste at the bottom of the pyrolysis cavity, the sealing cover is closed, then the adjusting valves 5 on the three air pipes 4 communicated with the combustion cavity are closed, the adjusting valves on the air pipes 4 communicated with the slag discharging device 6 are opened, and the blower is opened to enable air to enter the bottom of the pyrolysis cavity through the hose 12, the air preheating cavity 3, the air pipes 4 and the slag discharging device 6, so that the waste is gradually combusted and heated;

3) the heat generated by burning the waste at the bottom is gradually transferred upwards to the waste at the upper layer to be dried, pyrolyzed and burned out, when the temperature of the burning cavity 2 reaches 600 ℃, the regulating valves 5 on the three air pipes 4 communicated with the burning cavity 2 are opened to ensure that the pyrolysis gas escaped through the air holes on the side wall of the pyrolysis cavity is fully burned in the burning cavity 2, the generated high-temperature flue gas heats the air in the air preheating cavity 3 through the wall surface to realize waste heat recovery, and meanwhile, the high-temperature flue gas heats the waste through the side wall of the pyrolysis cavity 1 to promote the waste to be further pyrolyzed;

4) the flue gas is discharged from a smoke outlet 14 at the top of the combustion cavity 2 after heat exchange, ash generated by pyrolysis of waste enters a slag discharging device 6 through a grate at the bottom of the pyrolysis cavity 1, and a drawing structure of the slag discharging device is periodically drawn out and the ash is discharged;

5) along with the burning of the continuous pyrolysis of wastes material, the wastes material in the feeder hopper 11 reduces gradually, in time supplements the wastes material and forms the material and seal and keep continuous pyrolysis processing, and when the wastes material is about to be handled and the material level in the completion feeder hopper descends and can't form the material and seal, the sealed lid of feeder hopper is closed, prevents that the flue gas from escaping, waits to close air-blower 8 after the wastes material burns completely.

The invention also discloses the application of the incineration method of the portable solid waste pyrolysis incineration system in the solid waste treatment in remote areas and certain special places; the solid waste mainly refers to household garbage, industrial solid waste and agricultural solid waste. The experimental result shows that after the solid waste is subjected to pyrolysis incineration treatment by the device, the combustible materials are reacted completely, and the thermal ignition reduction rate of the ash is less than 3 percent, which is lower than the limit value requirement that the thermal ignition reduction rate of the ash is less than or equal to 5 percent in the domestic waste incineration pollution control Standard GB 18485-2014; the method is characterized in that a German Ecom-J2KN portable multifunctional flue gas analyzer is used for detecting flue gas generated by pyrolysis and incineration, the content of CO is about 30mg/m3 and is lower than the limit value requirement of CO in GB 18485-2014; the temperature of the combustion cavity is measured by a temperature measuring gun, the temperature of the combustion cavity is about 900 ℃, and the requirement that the temperature in a furnace hearth in GB18485-2014 is more than or equal to 850 ℃ is met.

The invention mainly solves the problem of solid waste treatment in remote areas and special places which can not be brought into a centralized incineration disposal system in cities, mainly inspects the pyrolysis incineration treatment of household garbage, industrial solid waste and agricultural solid waste, and has the main difficulty that the device is miniaturized, movable and reasonable in structure while ensuring the pyrolysis incineration effect.

The invention is described in more detail below:

the utility model provides a device is burned in portable solid waste pyrolysis, includes movable support, main part device, air feed device, row's sediment device and some firearm, movable support and main part device movable mounting can drive the pyrolysis and burn the device and remove, main part device includes pyrolysis chamber, burning chamber and air preheating chamber. The main part device is the sleeve form, and the inner tube is the pyrolysis chamber of the metal barrel body of taking the gas pocket, and the feeder hopper is connected at pyrolysis chamber top, and the bottom is the grate structure, and the urceolus is the burning chamber concentric with the inner tube, and pyrolysis gas gets into the burning chamber through the gas pocket and burns, and burning chamber bottom is sealed, and a circular exhaust port is established at the top.

The outer side of the combustion chamber is an air preheating chamber which is concentric with the combustion chamber, the top of the air preheating chamber is connected with an air supply device through a movable connecting port, the bottom of the air preheating chamber is connected with a slag discharging device through three air pipes, and the air pipes are respectively provided with a valve for adjusting air volume.

The movable support is provided with an air supply device, the air supply device comprises an air blower and a hose, wherein an air inlet of the air blower is communicated with an air guide port formed in the side wall, an air outlet of the air blower is communicated with an air chamber, and the air chamber is communicated with a movable connecting port of the air preheating cavity through the hose. Every the sediment device be cuboid metal carton, the box body top switches on with the fire grate in pyrolysis chamber, the three side of box body switches on with the tuber pipe in air preheating chamber, another side is the activity pull structure, the discharge of the lime-ash of being convenient for. The bottom of the main body device is a support, and the main body device is placed on the movable support through the support. A round hole is formed in the side face of the bottom of a combustion cavity of the main body device to form an ignition port, and a movable cover is arranged on the ignition port.

Compared with the prior art, the portable solid waste pyrolysis incineration system and method disclosed by the invention have the positive effects that:

(1) the invention provides a small and movable portable solid waste pyrolysis incineration system. The operator can carry the main body device to transport, fix and treat garbage by the movable support, and the garbage incinerator has the characteristics of simple operation, light weight, flexibility, complete incineration and no need of auxiliary combustion.

(2) The portable solid waste pyrolysis incineration system skillfully combines the pyrolysis process and the incineration process, and combustible gas generated by pyrolysis of the solid waste enters the combustion chamber through the small holes in the wall surface of the pyrolysis chamber to be combusted through the independently designed pyrolysis chamber structure. And preheating combustion-supporting air, and introducing a strand of preheated combustion-supporting air into the slag discharge device and the slag discharge device from the bottom of the pyrolysis cavity to promote further combustion of carbide generated after pyrolysis of the solid waste.

(3) Compared with the incinerator with combustion supporting of normal temperature air, the portable solid waste pyrolysis incineration system has the advantages that the incineration temperature is higher, waste incineration is more thorough, the thermal ignition rate of slag is low, harmful ingredients in smoke are lower, and as the combustion cavity only burns combustible gas generated by pyrolysis, smoke and dust are not generated, the safety and environment protection functions are realized.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a left side view of the incineration bucket part in fig. 1: wherein

1. Pyrolysis chamber 2, combustion chamber 3, air preheat chamber 4, tuber pipe 5, governing valve

6. Slag discharging device 7, fixed support 8, blower 9, movable support 10 and travelling wheel

11. Feed hopper 12, hose 13, air inlet 14, exhaust 15 and ignition port

16. And (4) chain locking.

Detailed Description

The invention is described below by means of specific embodiments. Unless otherwise specified, the technical means used in the present invention are well known to those skilled in the art. In addition, the embodiments should be considered illustrative, and not restrictive, of the scope of the invention, which is defined solely by the claims. It will be apparent to those skilled in the art that various changes and modifications can be made in these embodiments without departing from the spirit and scope of the invention.

Example 1

A portable solid waste pyrolysis incineration system comprises a movable support, a main body device, an air supply device, a slag discharge device and an igniter; wherein, the movable bracket is provided with an air supply device, and the movable bracket 9 is movably arranged with the main body device and can drive the pyrolysis incineration system to move;

the main body device is in a concentric circle sleeve form and sequentially comprises a pyrolysis cavity 1, a combustion cavity 2 and an air preheating cavity 3 from inside to outside; the top of the pyrolysis cavity is communicated with a feed hopper 11, the bottom of the pyrolysis cavity is of a grate structure, the middle part of the side wall is provided with an air hole communicated with the combustion cavity, and the bottom of the side wall is fixed with the grate by four brackets; the top of the combustion chamber is closed and provided with a smoke outlet 14, the bottom of the combustion chamber is closed and supports the whole main body device through a fixed support 7, and an ignition port 15 with a sealing cover is arranged below the side wall; the top of the air preheating cavity is closed and provided with an air inlet 13, the top of the preheating cavity is lower than the tops of the pyrolysis cavity and the combustion cavity, the bottom of the preheating cavity is higher than the bottoms of the pyrolysis cavity and the combustion cavity, the preheating cavity is respectively communicated with the combustion cavity and the slag discharging device 6 through three air pipes, and each air pipe is respectively provided with an adjusting valve 5;

the air supply device comprises: a blower 8 and a hose 12; the air outlet of the blower is communicated with the air inlet through a hose;

the slag discharging device 6 is a cuboid metal box, the top of the box body is communicated with the fire grate of the pyrolysis cavity 1, one side surface of the box body is communicated with the air pipe 4 of the air preheating cavity 3, and the other side surface of the box body is of a movable drawing structure, so that ash slag can be discharged conveniently.

The air pipe 4 and the side wall of the combustion chamber 2 enter at a 45-degree tangential direction, so that air and pyrolysis gas are fully mixed and combusted. The igniter is a clamping type flame gun, and a gun body can extend into the combustion cavity through an ignition port 15 to ignite.

The movable support adopts a cart, the cart includes carrying portion and hand portion, and wherein the up end of carrying portion levels the bottom that sets up and is used for holding the main part device, and a set of travelling wheel 10 is installed to the lower extreme one side symmetry of carrying portion, and a support frame is made to the opposite side an organic whole, and support frame and travelling wheel form four point support under the fixed state and ensure that incineration barrel and ground are in vertical state, one side of carrying portion is along making rather than up end vertical direction an organic whole the hand portion, this hand portion is binded fixedly with the main part device through chain 16.

Example 2

An incineration method of a portable solid waste pyrolysis incineration system comprises the following steps:

(1) moving the solid waste pyrolysis incineration device to a region where the waste is to be treated, and putting the waste into a feed hopper 11 to enable the waste to be fully piled in a pyrolysis cavity until the material level is in the middle position of the feed hopper;

(2) an igniter extends into the combustion chamber 2 through an ignition port 15 to ignite the waste at the bottom of the pyrolysis chamber, the sealing cover is closed, then regulating valves 5 on three air pipes 4 communicated with the combustion chamber are closed, regulating valves on the air pipes communicated with a slag discharging device 6 are opened, and an air blower is started to enable air to enter the bottom of the pyrolysis chamber through a hose 12, an air preheating chamber, the air pipes and the slag discharging device, so that the waste is gradually combusted and heated;

(3) the heat generated by burning the waste at the bottom is gradually transferred upwards to the waste at the upper layer to be dried, pyrolyzed and burned out, when the temperature of the burning cavity 2 reaches 600 ℃, the regulating valves 5 on the three air pipes 4 communicated with the burning cavity are opened to ensure that the pyrolysis gas escaped through the air holes on the side wall of the pyrolysis cavity is fully burnt in the burning cavity, the generated high-temperature flue gas heats the air in the preheating cavity through the wall surface heating air, the waste heat recovery is realized, and meanwhile, the high-temperature flue gas heats the waste through the side wall of the pyrolysis cavity to promote the further pyrolysis of the waste;

(4) the flue gas is discharged from a smoke outlet 14 at the top of the combustion cavity after heat exchange, ash generated by pyrolysis of the waste enters a slag discharging device 6 through a grate at the bottom of the pyrolysis cavity, and a pulling structure of the slag discharging device is periodically pulled out and the ash is discharged;

(5) along with the burning of the continuous pyrolysis of wastes material, the wastes material in the feeder hopper 11 reduces gradually, in time supplements the wastes material and forms the material and seal and keep continuous pyrolysis processing, and when the wastes material is about to be handled and the material level in the completion feeder hopper descends and can't form the material and seal, the sealed lid of feeder hopper is closed, prevents that the flue gas from escaping, waits to close air-blower 8 after the wastes material burns completely.

Example 3

The utility model provides a device is burned in portable solid waste pyrolysis, includes movable support 9, main part device, air feed device, row's sediment device and some firearm, movable support and main part device movable mounting can drive the pyrolysis and burn the device and remove, main part device includes pyrolysis chamber 1, combustion chamber 2 and air preheating chamber 3.

In this embodiment, the volume of the pyrolysis chamber in the combustion chamber should be no less than 60L in order to increase its capacity and operability.

In this embodiment, the movable support adopts a cart, the cart includes a carrying portion and a hand portion, wherein the upper end face of the carrying portion is flatly arranged at the bottom for accommodating the main body device, a set of traveling wheels 10 are symmetrically installed on one side of the lower end of the carrying portion, a support frame is integrally manufactured on the other side of the carrying portion, the support frame and the traveling wheels form a four-point support in a fixed state to ensure that the incineration barrel and the ground are in a vertical state, the hand portion is integrally manufactured on one side of the carrying portion in a direction perpendicular to the upper end face of the carrying portion, and the hand portion is bound and fixed with the main body device through a lock chain 16.

In this embodiment, the main part device is concentric circles sleeve form, is pyrolysis chamber 1, burning chamber 2, preheating chamber 3 from inside to outside in proper order, and pyrolysis chamber 1 top switches on with feeder hopper 11, and the bottom is the grate structure, and the lateral wall middle part sets up the gas pocket and switches on with burning chamber 2, and the lateral wall bottom is fixed by three supports and grate. The top of the combustion chamber 2 is closed and is provided with a smoke outlet 14, the bottom of the combustion chamber is closed and supports the whole main body device through a fixed support 7, and an ignition port 15 with a sealing cover is arranged below the side wall. The top of the air preheating cavity 3 is closed and provided with an air inlet 13, the top of the air preheating cavity is lower than the tops of the pyrolysis cavity and the combustion cavity, the bottom of the air preheating cavity is higher than the bottoms of the pyrolysis cavity and the combustion cavity, the air preheating cavity is respectively communicated with the combustion cavity and the slag discharging device through three air pipes 4, and each air pipe is respectively provided with an adjusting valve.

In this embodiment, sediment device 6 be the cuboid metal carton, the box body top switches on with the grate in pyrolysis chamber, and a side of box body switches on with air pipe 4 that the chamber 3 was preheated to the air, and another side is the activity pull structure, the discharge of the lime-ash of being convenient for.

In this embodiment, the movable support 9 is provided with an air supply device, the air supply device includes an air blower 8 and a hose 12, and an air outlet of the air blower 8 is communicated with an air inlet 13 through the hose 12.

In this embodiment, the flue pipe 4 and the side wall of the combustion chamber enter tangentially at an angle of 45 degrees, so that the air and the pyrolysis gas are fully mixed and combusted.

In this embodiment, the igniter is a clip-type flame gun, and the gun body can extend into the combustion chamber 2 through the ignition port 15 for ignition.

The working process of the invention is as follows:

when the invention works, an operator moves the solid waste pyrolysis incineration device to an area where the waste is to be treated, puts the waste into the feed hopper 11, and accumulates the waste to the middle position of the feed hopper. An igniter is used to extend into the combustion chamber 2 through the ignition port 15 to ignite the waste at the bottom of the pyrolysis chamber 1, and the sealing cover is closed. Then, the adjusting valves 5 on the two air pipes 4 communicated with the combustion cavity 2 are closed, the adjusting valves 5 on the air pipes 4 communicated with the slag discharging device 6 are opened, and the blower is started to enable air to enter the bottom of the pyrolysis cavity 1 through the hose 12, the air preheating cavity 3, the air pipes 4 and the slag discharging device 6, so that waste is gradually combusted and heated. The heat generated by the combustion of the waste at the bottom is gradually transferred upwards to the waste at the upper layer, so that the waste is dried, pyrolyzed and burned out. When the temperature of the combustion cavity 2 reaches about 600 ℃, the regulating valves 5 on the two air pipes 4 communicated with the combustion cavity 2 are opened, so that the thermal pyrolysis gas escaping through the air holes on the side wall of the pyrolysis cavity 1 is fully combusted in the combustion cavity 2, the generated high-temperature flue gas passes through the air in the wall surface heating air preheating cavity 3, the waste heat recovery is realized, and meanwhile, the high-temperature flue gas passes through the side wall of the pyrolysis cavity 1 to heat waste, so that the waste is further pyrolyzed. The flue gas is discharged from a smoke outlet 14 at the top of the combustion cavity 2 after heat exchange, ash generated by waste pyrolysis enters the slag discharging device 6 through a grate at the bottom of the pyrolysis cavity 1, and a drawing structure of the slag discharging device 6 is periodically drawn out and the ash is discharged. Along with the burning of the continuous pyrolysis of wastes material, the wastes material in the feeder hopper 11 reduces gradually, supplements the wastes material in time and forms the material and seal and keep continuous pyrolysis processing, and when the wastes material is about to handle and the material level in the completion feeder hopper 11 descends and can't form the material and seal, the sealed lid of feeder hopper 11 is closed, prevents that the flue gas from escaping. The blower 8 is turned off after the waste is completely burned.

The invention provides a small and movable solid waste pyrolysis incineration device. The operating personnel accessible removes the support and carries on waste matter pyrolysis incineration device and transport, fixed and refuse treatment.

The invention preheats combustion air through unique design, effectively recovers waste heat and improves combustion temperature, so that harmful substances in waste are decomposed more thoroughly. The preheated air enters the combustion chamber 2 tangentially, so that the disturbance of the internal airflow is intensified, the pyrolysis gas and the combustion-supporting air are mixed more fully, and the combustion is more complete. Because only pyrolysis gas is combusted in the combustion chamber 2, smoke and dust can not be generated, and the smoke discharge is cleaner and more environment-friendly. Compared with the conventional incineration device, the incineration temperature is higher, the waste incineration is more thorough, the thermal ignition rate of the slag is low, and harmful components in the smoke are lower.

Example 4

Comparative experiment

The results of the comparison experiment between the present invention and a conventional miniaturized solid waste incinerator are shown in the table

The experimental result shows that compared with the conventional miniaturized solid waste incinerator, the small-sized solid waste incinerator has the advantages that the incineration temperature is higher, the incineration is more complete, and due to the existence of the pyrolysis process, the amount of flue gas and the content of dioxin and CO in the flue gas are lower than those of the conventional miniaturized solid waste incinerator.

Example 5

The device is applied to the incineration treatment of combustible garbage such as waste paper, waste plastic rubber, old fabric articles, waste wood and the like after the garbage is classified in a village in Tianjin Wuqing district. The result shows that after the combustible garbage is pyrolyzed and incinerated by the device, the combustible substance completely reacts, and the thermal ignition loss of the ash slag is less than 3 percent, which is lower than the limit value requirement that the thermal ignition loss of the ash slag is less than or equal to 5 percent in the Standard for controlling pollution of domestic garbage incineration GB 18485-2014; the method is characterized in that a German Ecom-J2KN portable multifunctional flue gas analyzer is used for detecting the flue gas generated by a pyrolysis incineration device, the content of CO is about 30mg/m3 and is lower than the limit value requirement of CO in GB 18485-2014; the temperature of the combustion cavity is measured by a temperature measuring gun, the temperature of the combustion cavity is about 900 ℃, and the requirement that the temperature in a furnace hearth in GB18485-2014 is more than or equal to 850 ℃ is met.

Claims (5)

1. A portable solid waste pyrolysis incineration system is characterized in that: comprises a movable bracket, a main body device, an air supply device, a slag discharging device and an igniter; wherein the movable bracket is provided with an air supply device, and the movable bracket (9) is movably arranged with the main body device and can drive the pyrolysis incineration system to move;

the main body device is in a concentric circle sleeve form and sequentially comprises a pyrolysis cavity (1), a combustion cavity (2) and an air preheating cavity (3) from inside to outside; the top of the pyrolysis cavity (1) is communicated with the feed hopper (11), the bottom of the pyrolysis cavity is of a grate structure, the middle of the side wall is provided with an air hole communicated with the combustion cavity (2), and the bottom of the side wall is fixed with the grate by four brackets; the top of the combustion chamber (2) is closed and provided with a smoke outlet (14), the bottom of the combustion chamber is closed and supports the whole main body device through a fixed support (7), and an ignition port (15) with a sealing cover is arranged below the side wall; the top of the air preheating cavity (3) is closed and provided with an air inlet (13), the top of the preheating cavity is lower than the tops of the pyrolysis cavity (1) and the combustion cavity (2), the bottom of the preheating cavity is higher than the bottoms of the pyrolysis cavity (1) and the combustion cavity (2), the preheating cavity is respectively communicated with the combustion cavity (2) and the slag discharging device (6) through three air pipes (4), and each air pipe (4) is respectively provided with an adjusting valve (5);

the air supply device comprises: a blower (8) and a hose (12); the air outlet of the blower is communicated with the air inlet (13) through a hose (12);

the slag discharging device (6) is a cuboid metal box, the top of the box body is communicated with a grate of the pyrolysis cavity (1), one side surface of the box body is communicated with an air pipe (4) of the air preheating cavity (3), and the other side surface of the box body is of a movable drawing structure, so that ash slag can be discharged conveniently;

remove movable support (9) and adopt a shallow, the shallow includes carrying portion and hand portion, and wherein the up end of carrying portion levels the bottom that sets up and is used for holding the main part device, and a set of running wheel (10) are installed to the lower extreme one side symmetry of carrying portion, and a support frame is made to the opposite side an organic whole, and support frame and running wheel form four points and support under the fixed state and ensure that incineration barrel is in vertical state with ground, one side of carrying portion is along making rather than up end vertical direction an organic whole the hand portion, this hand portion is binded fixedly with the main part device through chain (16).

2. A portable solid waste pyrolytic incineration system according to claim 1, characterized in that the air duct (4) enters tangentially at 45 ° to the side wall of the combustion chamber (2) for thorough mixing and combustion of air and pyrolysis gas.

3. A portable solid waste pyrolysis incineration system according to claim 1, wherein the igniter is a cartridge type flame gun, and the gun body is extendable into the combustion chamber (2) through the ignition port (15) for ignition.

4. An incineration method for a portable solid waste pyrolysis incineration system according to claim 1, characterised by being carried out as follows:

1) moving the solid waste pyrolysis incineration device to an area where the waste is to be treated, putting the waste into a feed hopper (11), and fully piling the waste in the pyrolysis cavity (1) until the material level is in the middle position of the feed hopper (11);

2) an igniter extends into the combustion cavity (2) through an ignition port (15) to ignite the waste at the bottom of the pyrolysis cavity (1), a sealing cover is closed, then regulating valves (5) on three air pipes (4) communicated with the combustion cavity (2) are closed, the regulating valves (5) on the air pipes (4) communicated with a slag discharging device (6) are opened, and an air blower is started to enable air to enter the bottom of the pyrolysis cavity (1) through a hose (12), an air preheating cavity (3), the air pipes (4) and the slag discharging device (6), so that the waste is gradually combusted and heated;

3) the heat generated by burning the waste at the bottom is gradually and upwards transferred to the waste at the upper layer to be dried, pyrolyzed and burned out, when the temperature of the combustion cavity (2) reaches 600 ℃, the regulating valves (5) on the three air pipes (4) communicated with the combustion cavity (2) are opened to ensure that pyrolysis gas escaping through the air holes on the side wall of the pyrolysis cavity (1) is fully combusted in the combustion cavity (2), the generated high-temperature flue gas heats the air in the air preheating cavity (3) through the wall surface to realize waste heat recovery, and meanwhile, the high-temperature flue gas heats the waste through the side wall of the pyrolysis cavity (1) to promote the further pyrolysis of the waste;

4) the flue gas is discharged from a smoke outlet (14) at the top of the combustion cavity (2) after heat exchange, ash generated by waste pyrolysis enters a slag discharging device (6) through a grate at the bottom of the pyrolysis cavity (1), and a drawing structure of the slag discharging device is drawn out periodically and the ash is discharged;

5) along with the burning of the continuous pyrolysis of wastes, the wastes in the feed hopper (11) are gradually reduced, the wastes are timely supplemented to form a seal to keep continuous pyrolysis treatment, when the wastes are about to be treated and the material level in the feed hopper is reduced, the seal cover of the feed hopper is closed to prevent flue gas from escaping, and the air blower (8) is closed after the wastes are completely burned.

5. The incineration method of the portable solid waste pyrolysis incineration system of claim 4, used in the solid waste treatment of remote areas and some special sites; the solid waste refers to household garbage, industrial solid waste and agricultural solid waste.

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