CN210688239U

CN210688239U - Ground slot type double-channel garbage pyrolysis combustion device

Info

Publication number: CN210688239U
Application number: CN201921597757.8U
Authority: CN
Inventors: 李观德
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-06-05
Anticipated expiration: 2029-09-24

Abstract

The utility model discloses a ground-groove type double-channel garbage pyrolysis combustion device, which comprises a first furnace body and a second furnace body which are buried in a ground groove, wherein a third furnace body is arranged between the first furnace body and the second furnace body; the first furnace body is used for low-temperature pyrolysis, and a first pushing device used for pushing a bottom material to the lower part of the third furnace body is arranged at the bottom of the first furnace body; the second furnace body is sequentially provided with a material storage chamber, a secondary combustion chamber and a fire grate combustion chamber from top to bottom; a second pushing device used for pushing the materials to the upper part of the third furnace body is arranged on the material storage chamber; the bottom of the third furnace body is provided with a third pushing device used for pushing the materials to the fire grate combustion chamber; the grate combustion chamber and the secondary combustion chamber are communicated in sequence. The utility model discloses not only can improve the handling capacity of rubbish pyrolysis, can effectively improve heat utilization rate moreover to reduce the cost of labor.

Description

Ground slot type double-channel garbage pyrolysis combustion device

Technical Field

The utility model relates to a ground slot type binary channels rubbish pyrolysis combustion apparatus belongs to rubbish environmental protection processing technology field.

Background

Garbage is a renewable resource, and if the garbage can be effectively integrated and utilized, huge economic benefits can be created. The existing landfill mode can dispose the garbage, but has the problems of land resource consumption, soil water body pollution and the like. Yet another common form of disposal is incineration. However, since the waste generally has the problems of high humidity, complex components and the like, the general incineration treatment mode is not easy to completely burn and is easy to generate toxic and harmful gases (dust, sulfur-containing pollutants, nitrate pollutants, dioxin and the like), and fuel needs to be added to initiate combustion of the waste, so that extra energy consumption and pollutant generation are caused. The garbage pyrolysis gas is a process of utilizing the thermal instability of organic matters in the garbage, heating and distilling the organic matters to crack the organic matters, forming various new gases, liquids and solids after condensation, and extracting combustible gas from the gases.

However, the conventional garbage pyrolysis furnace generally has the defects that the garbage treatment capacity cannot be high due to insufficient pyrolysis caused by too much coming and stacking in the furnace, so that the garbage needs to be pyrolyzed mechanically in batches, a large amount of manual servo is needed in the batch pyrolysis process, and heat energy is easily lost due to frequent furnace opening and charging.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a geosynclinal type binary channels rubbish pyrolysis burner. The method can improve the treatment capacity of garbage pyrolysis, effectively improve the heat energy utilization rate and reduce the labor cost.

The technical scheme of the utility model: the ground groove type double-channel garbage pyrolysis combustion device is characterized in that: the device comprises a first furnace body and a second furnace body which are embedded in a ground groove, wherein a third furnace body is arranged between the first furnace body and the second furnace body; the first furnace body is used for low-temperature pyrolysis, and a first pushing device used for pushing a bottom material to the lower part of the third furnace body is arranged at the bottom of the first furnace body; the second furnace body is sequentially provided with a material storage chamber, a secondary combustion chamber and a fire grate combustion chamber from top to bottom; a second pushing device used for pushing the materials to the upper part of the third furnace body is arranged on the material storage chamber; the bottom of the third furnace body is provided with a third pushing device used for pushing the materials to the fire grate combustion chamber; the grate combustion chamber and the secondary combustion chamber are communicated in sequence.

In the ground groove type double-channel garbage pyrolysis combustion device, openable and closable closed doors for charging are arranged at the upper parts of the first furnace body and the second furnace body.

In the ground groove type double-channel garbage pyrolysis combustion device, a discharging adjusting door is arranged in the third furnace body and is positioned above a discharging hole of the first pushing device.

In the ground groove type double-channel garbage pyrolysis combustion device, the secondary combustion chamber is connected with an auxiliary combustion chamber (used for pyrolysis of high-heat-value materials), and when the heat value of the fuel gas generated by pyrolysis of garbage in the secondary combustion chamber is insufficient, the fuel gas is supplemented.

In the ground groove type double-channel garbage pyrolysis combustion device, the first furnace body and the third furnace body are communicated to the secondary combustion chamber through pipelines.

In the ground groove type double-channel garbage pyrolysis combustion device, the first furnace body, the third furnace body, the grate combustion chamber and the secondary combustion chamber are all internally provided with air inlets for adjusting the oxygen inlet amount so as to control the oxygen inlet amount at the working temperature.

In the ground groove type double-channel garbage pyrolysis combustion device, the lower end of the fire grate combustion chamber is provided with the ash collecting groove, one end of the ash collecting groove is positioned below the tail end of the fire grate combustion chamber, and the other end of the ash collecting groove is positioned outside the second furnace body, so that ash can be conveniently taken from the outside.

In the ground groove type double-channel garbage pyrolysis combustion device, the secondary combustion chamber is connected to the tail gas treatment unit after passing through the quenching heat exchanger.

Compared with the prior art, the utility model discloses a set up first furnace body and second furnace body in the geosyncline, separate into a third furnace body again between two furnace bodies, wherein first furnace body can be used to pile up rubbish in a large number, and the second furnace body then can set up the rubbish less relatively, that the calorific value is lower. A large amount of rubbish in the first furnace body starts the pyrolysis from the bottom, can push the third furnace body bottom again after the pyrolysis is accomplished a certain degree, carries out further thorough pyrolysis, but the rubbish in the temperature second furnace body that the pyrolysis produced preheats the drying and carries out supplementary pyrolysis to the rubbish that pushes the third furnace body from the second furnace body, makes it can the pyrolysis abundant. And the garbage pyrolyzed from different paths is finally converged together and pushed into a furnace chamber to be completely combusted into ash. The pyrolysis gas generated in each cavity can be completely combusted in the secondary combustion chamber, and the heat energy of combustion is recycled through the quenching heat exchanger. Therefore, the utility model discloses a binary channels carries out the mode of rubbish to many furnace bodies carry out the cooperation work, not only can hold the rubbish of great capacity, and heat utilization rate is high moreover, and it is abundant also can the pyrolysis to the lower rubbish of calorific value, and application scope is wider. And because the utility model discloses a refuse treatment volume is higher, need not too much personnel and wait on line after disposable packing is accomplished, therefore the cost of labor also can reduce a lot relatively.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural diagram of the tail gas treatment unit of the present invention.

The labels in the figures are: 1-a first furnace body, 101-a first pushing device, 2-a second furnace body, 201-a storage chamber, 202-a quenching heat exchanger, 203-a secondary combustion chamber, 204-a fire grate combustion chamber, 205-a second pushing device, 3-a third furnace body, 301-a third pushing device, 302-a blanking adjusting door, 4-an auxiliary combustion chamber, 5-an ash collecting tank, 801-a mixed material storage bin, 802-a mixed absorption tower, 803-a bag-type dust remover, 804-an activated carbon absorption tower, 805-a desulfurization spray tower, 806-a smoke exhaust fan and 807-a chimney.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Examples are given. A ground groove type double-channel garbage pyrolysis combustion device is shown in figure 1 and comprises a first furnace body 1 and a second furnace body 2 which are buried in a ground groove, wherein a third furnace body 3 is arranged between the first furnace body 1 and the second furnace body 2; the first furnace body 1 is used for low-temperature pyrolysis, and a first pushing device 101 for pushing a bottom material to the lower part of the third furnace body 3 is arranged at the bottom; the second furnace body 2 is sequentially provided with a material storage chamber 201, a secondary combustion chamber 203 and a grate combustion chamber 204 from top to bottom; a second pushing device 205 for pushing the material to the upper part of the third furnace body 3 is arranged on the material storage chamber 201; the bottom of the third furnace body 3 is provided with a third pushing device 301 for pushing materials to the grate combustion chamber 204; the grate combustion chamber 204 and the secondary combustion chamber 203 are communicated in sequence. The secondary combustion chamber 203 may be a multi-segmented tortuous path. The upper parts of the first furnace body 1 and the second furnace body 2 are provided with openable and closable closed doors for charging. A discharging adjusting door 302 is arranged in the third furnace body 3, and the discharging adjusting door 302 is positioned above the discharging hole of the first pushing device 101. The auxiliary combustion chamber 4 is connected to the secondary combustion chamber 203. The first furnace body 1 and the third furnace body 3 are communicated to the secondary combustion chamber 203 through pipelines. Air inlets are formed in the first furnace body 1, the third furnace body 3, the grate combustion chamber 204 and the secondary combustion chamber 204. The lower end of the fire grate combustion chamber 204 is provided with an ash collecting groove 5, one end of the ash collecting groove 5 is positioned below the end of the fire grate combustion chamber 204, and the other end is positioned outside the second furnace body 2. The secondary combustion chamber 203 is connected to a tail gas treatment unit through a quenching heat exchanger.

The utility model discloses a working procedure:

firstly, respectively fill rubbish in first furnace body 1 and storage compartment 201, ignite from first furnace body 1 lower extreme again, carry out the pyrolysis to the rubbish in the first furnace body 1, through the pyrolysis of a period of time, use first pusher 101 to push into the third furnace body 3 with the higher rubbish of first furnace body 1 bottom pyrolysis completion degree, and utilize the heat when these rubbish continue the pyrolysis to carry out dry preheating and preliminary pyrolysis to the rubbish in the storage compartment 201, second pusher 205 progressively pushes into the third furnace body 3 with rubbish and carries out abundant pyrolysis, third pusher 301 pushes the rubbish of basically pyrolysis completion into grate combustion chamber 204 and carries out final burn-up processing, the pyrolysis gas that produces in the device all inserts secondary combustion chamber 203 and carries out high temperature postcombustion, the tail gas of burning gets into rapid cooling heat exchanger 202 and gets into the tail gas processing unit after heat energy is collected and carries out environmental protection processing. Through the opening and closing of the blanking adjusting door 302 in the third furnace body 3, the falling speed of the pyrolysis garbage at the upper part of the third furnace body 3 is adjusted to avoid the problem of insufficient pyrolysis. The refuse entry path is shown by the arrows in figure 1.

The structure of the tail gas treatment unit is shown in fig. 2, and the tail gas treatment unit comprises a bag-type dust collector 803, an activated carbon absorption tower 804 (provided with an activated carbon absorption layer), a desulfurization spray tower 805 (for example, spraying agents such as sodium hydroxide), a smoke exhaust fan 806 and a chimney 807 which are connected in sequence. The front end of the bag-type dust collector 803 is also provided with a mixing absorption tower 802, a flue gas inlet of the mixing absorption tower 802 is connected with a mixing storage bin 801, lime powder and/or activated carbon powder are/is arranged in the mixing storage bin 801, and a feeding mechanism for feeding the mixed materials into the mixing absorption tower is arranged on the mixing storage bin 801.

Claims

1. Ground slot type binary channels rubbish pyrolysis burner, its characterized in that: the device comprises a first furnace body (1) and a second furnace body (2) which are embedded in a ground groove, wherein a third furnace body (3) is arranged between the first furnace body (1) and the second furnace body (2); the first furnace body (1) is used for low-temperature pyrolysis, and a first pushing device (101) used for pushing bottom materials to the lower part of the third furnace body (3) is arranged at the bottom of the first furnace body; the second furnace body (2) is sequentially provided with a material storage chamber (201), a secondary combustion chamber (203) and a fire grate combustion chamber (204) from top to bottom; a second pushing device (205) for pushing the materials to the upper part of the third furnace body (3) is arranged on the material storage chamber (201); the bottom of the third furnace body (3) is provided with a third pushing device (301) for pushing materials to the fire grate combustion chamber (204); the grate combustion chamber (204) and the secondary combustion chamber (203) are communicated in sequence.

2. The trench type dual-channel garbage pyrolytic combustion device according to claim 1, wherein: the upper parts of the first furnace body (1) and the second furnace body (2) are provided with openable and closable closed doors for charging.

3. The trench type dual-channel garbage pyrolytic combustion device according to claim 1, wherein: and a discharging adjusting door (302) is arranged in the third furnace body (3), and the discharging adjusting door (302) is positioned above a discharging hole of the first pushing device (101).

4. The trench type dual-channel garbage pyrolytic combustion device according to claim 1, wherein: and the secondary combustion chamber (203) is connected with an auxiliary combustion chamber (4).

5. The trench type dual-channel garbage pyrolytic combustion device according to claim 1, wherein: the first furnace body (1) and the third furnace body (3) are communicated to the secondary combustion chamber (203) through pipelines.

6. The trench type dual-channel garbage pyrolytic combustion device according to claim 1, wherein: air inlets are formed in the first furnace body (1), the third furnace body (3), the grate combustion chamber (204) and the secondary combustion chamber (203).

7. The trench type dual-channel garbage pyrolytic combustion device according to claim 1, wherein: the lower end of the fire grate combustion chamber (204) is provided with an ash collecting groove (5), one end of the ash collecting groove (5) is positioned below the fire grate tail end of the fire grate combustion chamber (204), and the other end of the ash collecting groove is positioned outside the second furnace body (2).

8. The trench type dual-channel garbage pyrolytic combustion device according to claim 6, wherein: the secondary combustion chamber (203) is connected to a tail gas treatment unit through a quenching heat exchanger (202).