阅读说明：本技术 一种村镇生活垃圾清洁焚烧装置 (Clean incineration device for domestic garbage in villages and towns ) 是由 尹小林 余智英 赵海洋 刘婷 肖姗姗 皮静 于 2020-04-27 设计创作，主要内容包括：一种村镇生活垃圾清洁焚烧装置,包括焚烧炉本体,所述焚烧炉本体的侧壁设有垃圾入口,焚烧炉本体侧壁的上部设有烟气出口,焚烧炉本体的底部设有排渣出口和一次风口,焚烧炉本体的侧壁设有二次风口；焚烧炉本体的底部和周围设有等离子火焰发生器,所述等离子火焰发生器通过一次风口和/或二次风口与所述焚烧炉本体连接。本发明利用等离子体火焰流大幅提高了生活垃圾的燃烧效率及燃尽率,解决了乡镇生活垃圾清洁焚烧的困境；本发明结构简单,投资成本低,可以较低成本对乡镇生活垃圾进行减量化和无害化处理,解决了目前生活垃圾填埋占地面积大、对环境污染大等问题。(A cleaning incineration device for domestic garbage in villages and towns comprises an incinerator body, wherein a garbage inlet is formed in the side wall of the incinerator body, a smoke outlet is formed in the upper portion of the side wall of the incinerator body, a slag discharge outlet and a primary air port are formed in the bottom of the incinerator body, and a secondary air port is formed in the side wall of the incinerator body; and the plasma flame generator is arranged at the bottom and around the incinerator body and is connected with the incinerator body through a primary air port and/or a secondary air port. The invention greatly improves the combustion efficiency and the burnout rate of the domestic garbage by utilizing the plasma flame flow, and solves the dilemma of clean incineration of the domestic garbage in villages and towns; the invention has simple structure and low investment cost, can carry out reduction and harmless treatment on the domestic garbage of villages and towns with lower cost, and solves the problems of large occupied area of the domestic garbage landfill, large environmental pollution and the like at present.)

1. The utility model provides a clean device that burns of villages and small towns domestic waste, includes burns burning furnace body the lateral wall that burns burning furnace body is equipped with garbage inlet, the upper portion that burns burning furnace body lateral wall is equipped with the exhanst gas outlet, the bottom that burns burning furnace body is equipped with row's sediment export, its characterized in that: the plasma incinerator is characterized in that a primary air port is formed in the bottom of the incinerator body, a secondary air port is formed in the side wall of the incinerator body, plasma flame generators are arranged at the bottom and on the periphery of the incinerator body, and the plasma flame generators are connected with the incinerator body through the primary air port and/or the secondary air port.

2. The device for cleaning and incinerating domestic waste in villages and towns according to claim 1, wherein: the plasma flame generator comprises a discharge electrode, a conductive cylinder and a power supply device, wherein the discharge electrode is connected with the conductive cylinder through an insulating part, the discharge electrode and the central axis of the conductive cylinder are positioned on the same straight line, an air passing hole for supplying air for primary air is formed in the bottom of the conductive cylinder and/or the insulating part, and the power supply device is respectively connected with the discharge electrode and the conductive cylinder.

3. The clean incineration device for the domestic waste in villages and towns according to claim 1 or 2, characterized in that: the secondary air port is arranged on the incinerator body in a tangential installation mode or a four-corner tangential installation mode.

4. The clean incineration device for the domestic waste in villages and towns according to claim 1 or 2, characterized in that: a cyclone separator is arranged at a smoke outlet of the incinerator body, and a discharging pipe of the cyclone separator is connected with a material return pipe arranged on the incinerator body.

5. The device for cleaning and incinerating domestic waste in villages and towns according to claim 3, wherein: a cyclone separator is arranged at a smoke outlet of the incinerator body, and a discharging pipe of the cyclone separator is connected with a material return pipe arranged on the incinerator body.

6. The device for cleaning and incinerating domestic waste in villages and towns according to claim 3, wherein: the high-pressure primary air fan and the primary air box are further arranged for providing high-pressure air for the primary air port, and the high-pressure primary air fan is connected with the primary air box or connected with the primary air box through a flue gas heat exchanger.

7. The device for cleaning and incinerating domestic waste in villages and towns according to claim 4, wherein: the high-pressure primary air blower and the primary air box are also arranged for supplying high-pressure air to the primary air opening, and the high-pressure primary air blower is connected with the primary air box or is connected with the primary air box through a flue gas heat exchanger.

8. The device for cleaning and incinerating domestic waste in villages and towns according to claim 4, wherein: and a smoke purifier is arranged at the air outlet of the cyclone separator.

9. The device for cleaning and incinerating domestic waste in villages and towns according to claim 8, wherein: and a slag cooler is arranged at the slag discharging outlet of the incinerator body.

10. The device for cleaning and incinerating domestic waste in villages and towns according to claim 9, wherein: and a temperature-resistant ceramic blast cap is arranged at the outlet of the plasma flame generator.

Technical Field

The invention relates to a household garbage incineration device, in particular to a clean incineration device for household garbage in villages and towns.

Background

Along with the improvement of living standard of people, the generation amount of garbage is increased year by year. So far, the phenomena of random dumping of garbage and garbage village enclosing are not completely solved. According to the statistical data of the Ministry of construction, the annual clear and transport amount of urban garbage in China currently reaches 1.79 hundred million tons, the annual output of rural garbage is about 1.5 hundred million tons, the urban garbage disposal rate reaches about 90 percent, but the rural garbage disposal rate is only about 50 percent.

A plurality of villages and towns collect garbage uniformly, then compress the garbage and transport the garbage to remote mountainous regions for landfill, which is the main treatment mode of the garbage in the rural areas at present. The landfill treatment technology is simple, the treatment capacity is large, but the landfill has higher requirement on site selection, and the garbage collection, transportation and landfill treatment cost is huge for rural villages and towns with long distance and in regions with dispersed population, so that only part of garbage collected and transported in a centralized way is effectively treated. A small part of areas are provided with simple and small garbage incinerating devices for garbage reduction, but large-area atmospheric pollution is caused due to the fact that equipment is simple and crude, garbage combustion temperature control is not accurate, flue gas treatment is not thorough, and most of the garbage incinerating devices are idle. Among small garbage incinerators in villages and towns, a total mixed combustion type garbage incinerator is a widely used garbage incinerator, and its structures are described in patent documents such as a small incinerator disclosed in CN201520943232.0, a small incinerator with an external air blocking and feeding device disclosed in CN0312029.3, a garbage incineration disposal device disclosed in CN201410052291.9, and the like, that is: after the household garbage is filled into incineration equipment at one time, the household garbage can be ignited spontaneously, but due to the fact that the garbage is complex in components and difficult to combust or only the combustion temperature of the surface of a raw material is high, the internal combustion temperature of the garbage is low, the internal garbage is not sufficiently combusted, the burnout rate is extremely low, a large amount of toxic and harmful substances such as carbon monoxide and dioxin are generated, the atmospheric environment is polluted, and the harm is caused to human bodies. In addition, there are also many products in the up-burning type waste incineration equipment, for example, the waste incineration furnace for preheating waste disclosed in CN201710780831.9 preheats waste by waste heat from waste combustion below in the storage bin and the feeding cavity, and dries moisture, but the waste incineration facility has a disadvantage that the waste at the drying position is pyrolyzed at a temperature lower than that of sufficient combustion to generate VOCs small molecular organic matters, dioxin, carbon monoxide and the like to enter into flue gas, and the flue gas does not enter into the firing surface to be sufficiently combusted, and is directly discharged into the rear end facility, so that the load of tail gas treatment is increased, and meanwhile, the heat exchange mode for preheating waste has a great limitation, and the waste incineration efficiency is greatly reduced.

In summary, although the waste incineration facility with the structure is adjusted, the problem of difficulty in waste treatment is solved to a certain extent, the problems of insufficient combustion, incomplete treatment of toxic and harmful substances and the like still generally exist in the process of treating the primary domestic waste in villages and small towns in the existing waste incineration treatment facility.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects in the prior art and provide the device for cleaning and incinerating the domestic garbage in villages and small towns, which has the advantages of simple structure, high garbage burnout rate and low content of toxic and harmful substances in the discharged flue gas.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a clean device that burns of villages and small towns domestic waste, is including burning the burning furnace body, the lateral wall that burns the burning furnace body is equipped with the garbage entry, the upper portion that burns the burning furnace body lateral wall is equipped with the exhanst gas outlet, the bottom that burns the burning furnace body is equipped with row's sediment export, the bottom that burns the burning furnace body is equipped with the wind gap, the lateral wall that burns the burning furnace body is equipped with the secondary air port, burns the furnace body bottom and is equipped with plasma flame generator on every side, plasma flame generator through a wind gap and/or secondary air port with. When the device works, the household garbage entering the hearth from the garbage inlet is dried by plasma flame flow and/or wind flow generated by the plasma flame generator and is completely combusted in an aerobic clean mode, slag is discharged from the slag discharging outlet, and flue gas is discharged from the flue gas outlet for treatment.

Further, plasma flame generator includes discharge electrode, a conductive tube and power supply unit, discharge electrode passes through insulating part and is connected with a conductive tube, discharge electrode and conductive tube's axis are located same straight line, be equipped with the wind hole of crossing that is used for the wind supply of primary air on conductive tube bottom and/or the insulating part, power supply unit is connected with discharge electrode and conductive tube respectively, and when power supply unit high-voltage high-frequency power, can form electric arc between discharge electrode and conductive tube to through the wind hole one-time ionization that gets into conductive tube, form plasma flame and flow.

Furthermore, the secondary air port is installed on the incinerator body in a tangential installation mode or a four-corner tangential installation mode, cyclone plasma flame flow is formed in a hearth of the incinerator, and the cyclone plasma flame flow is mixed with garbage entering the hearth more fully, so that the garbage combustion efficiency is higher, and the garbage burnout rate is higher.

Furthermore, a cyclone separator is arranged at a smoke outlet of the incinerator body, and a discharging pipe of the cyclone separator is connected with a material return pipe arranged on the incinerator body.

And the high-pressure primary air fan and the primary air box are further arranged for providing high-pressure air for the primary air port, and the high-pressure primary air fan is connected with the primary air box or connected with the primary air box through a flue gas heat exchanger.

Further, a smoke purifier is arranged at the air outlet of the cyclone separator.

Further, a slag cooler is arranged at the slag discharging outlet of the incinerator body. The slag cooler can rapidly cool the combustion slag discharged from the slag discharging outlet to below 180 ℃ for discharging, thereby greatly reducing the discharge of toxic and harmful substances such as dioxin and the like.

Further, a flame outlet of the plasma flame generator is provided with a temperature-resistant ceramic blast cap. The temperature-resistant ceramic hood can reduce the blockage of ash slag on the outlet of the plasma flame generator, and is favorable for forming flame flow.

Compared with the prior art, the invention has the following positive effects:

(1) the plasma flame flow is utilized to greatly improve the combustion efficiency and the burnout rate of the domestic garbage and solve the dilemma of clean incineration of the domestic garbage in villages and towns;

(2) the device has the advantages of simple structure, low investment cost, convenient and quick complete adoption of electric energy, capability of carrying out reduction and harmless treatment on the domestic garbage in villages and towns at lower cost, and solving the problems of large occupied area of the domestic garbage landfill, large environmental pollution and the like at present;

(3) provides a device for cleanly burning domestic garbage in villages and towns and a treatment method thereof, and solves the problems that the current burning device causes environmental pollution and harm to human health.

Drawings

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

FIG. 2 is a view of the bottom A-A of the incinerator in embodiment 1 shown in FIG. 1;

FIG. 3 is a schematic view of the electrode structure in embodiment 1 shown in FIG. 1;

FIG. 4 is a view of the electrode B-B in the embodiment 1 shown in FIG. 3;

fig. 5 is a schematic structural diagram of embodiment 2 of the present invention.

In the figure: 1-incinerator body, 101-garbage inlet, 102-flue gas outlet, 103-slag discharge outlet, 104-primary air port, 105-return pipe, 106-secondary air port, 2-plasma flame generator, 201-discharge electrode, 202-conductive cylinder, 203-insulating part, 204-power supply device, 205-air passing hole, 206-temperature-resistant ceramic hood; 3-cyclone separator, 4-high pressure primary fan, 5-primary air box, 6-flue gas purifier and 7-slag cooler.

Detailed Description

The invention is described in further detail below with reference to the figures and the embodiments.