CN214094502U - Oxygen-enriched circulation type high-temperature gasification secondary combustion chamber - Google Patents

Abstract

The utility model discloses an oxygen boosting circulation formula high temperature gasification second combustion chamber, include: the device comprises a shell, a first pyrolysis circulating chamber and a second pyrolysis circulating chamber, wherein the shell is sequentially provided with the first pyrolysis circulating chamber and the second pyrolysis circulating chamber from bottom to top; and the radiating pipe is arranged in the shell, the lower end of the radiating pipe is positioned in the first pyrolysis circulating chamber, and the upper end of the radiating pipe is positioned in the second pyrolysis circulating chamber and communicated with the first tail gas inlet. Adopt the utility model discloses a first pyrolysis circulation room can carry out secondary high temperature pyrolysis gasification to the tail gas that comes out from firing burning furnace, and second pyrolysis circulation room can be to spraying the tail gas that removes dust and dewatering cooling through spray column and sedimentation tank and drying and heating, makes its absorption that can pass through active carbon smoothly in the follow-up adsorption tower and discharges smoothly to make two combustion chambers collect secondary high temperature pyrolysis gasification, dry and heat in an organic whole, the function is diversified.

Description

Oxygen-enriched circulation type high-temperature gasification secondary combustion chamber

Technical Field

The utility model relates to a rubbish combustion apparatus technical field, in particular to oxygen boosting circulation formula high temperature gasification second combustion chamber.

Background

The household garbage incineration treatment is to treat the household garbage by utilizing the high-temperature oxidation effect, the household garbage is burnt at high temperature, so that combustible waste in the household garbage is converted into carbon dioxide, water and the like, and the incinerated ash is only less than 20% of the original volume of the household garbage, so that the amount of solid waste is greatly reduced, and various pathogens can be thoroughly killed. Therefore, the household garbage can be put into the incinerator for combustion, but because the household garbage is mixed with too many materials and is usually in a dry-wet mixed state, incomplete combustion is easy to occur during combustion of the incinerator. When the incinerator burns garbage, the exhausted tail gas cannot be fully decomposed, and harmful gas in the tail gas cannot be thoroughly eliminated, so that a secondary high-temperature pyrolysis gasification is carried out on the tail gas by arranging a secondary combustion chamber. The existing secondary combustion chamber can be combined with a combustion furnace into a whole and can also be designed independently, but the existing secondary combustion chamber is only used for secondary high-temperature pyrolysis gasification tail gas, and the function is single.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oxygen boosting circulation formula high temperature gasification second combustion chamber to overcome current second combustion chamber and can only be used for secondary high temperature pyrolysis gasification tail gas, the shortcoming of function singleness.

In order to achieve the above object, the utility model provides an oxygen boosting circulation formula high temperature gasification second combustion chamber, include: the device comprises a shell, a first pyrolysis circulating flow chamber and a second pyrolysis circulating flow chamber, wherein the shell is sequentially provided with the first pyrolysis circulating flow chamber and the second pyrolysis circulating flow chamber from bottom to top; and the radiating pipe is arranged in the shell, the lower end of the radiating pipe is positioned in the first pyrolysis circulating chamber, and the upper end of the radiating pipe is positioned in the second pyrolysis circulating chamber and penetrates through the first tail gas inlet to be communicated with the outside.

Preferably, in the above technical solution, the first pyrolysis circulation chamber is cylindrical, and the second pyrolysis circulation chamber is rectangular.

Preferably, in the above technical solution, the first tail gas inlet is disposed on a right side wall of the second pyrolysis circulation chamber, and the heat dissipation pipe is L-shaped.

Preferably, in the above technical solution, the outer side wall of the heat dissipation pipe is provided with heat dissipation fins.

Preferably, in the above technical scheme, a partition plate is arranged in the second pyrolysis circulation chamber, the second tail gas inlet and the second tail gas outlet are arranged on the left side wall of the second pyrolysis circulation chamber and are distributed front and back relatively, the partition plate is arranged between the second tail gas inlet and the second tail gas outlet, and a gap is left between the right end of the partition plate and the right side wall of the second pyrolysis circulation chamber.

Preferably, in the above technical solution, the heat dissipation pipe and the second exhaust gas inlet are both located on the same side of the partition plate.

Preferably, in the above technical solution, the lower end of the heat dissipation pipe is located at the middle lower portion of the first pyrolysis circulation chamber.

Preferably, in the above technical scheme, a slag discharge port is arranged at the bottom of the first pyrolysis circulation chamber, and the slag discharge port is provided with a cover plate capable of being opened and closed.

Preferably, in the above technical solution, the housing is made of boiler steel.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses a be equipped with first pyrolysis circulation room and second pyrolysis circulation room in the second combustion chamber, the cooling tube sets up between first pyrolysis circulation room and second pyrolysis circulation room, during the use, first tail gas import is connected with the tail gas outlet of burning furnace, when the tail gas of high temperature in the burning furnace flows through the cooling tube, can heat first pyrolysis circulation room and second pyrolysis circulation room, so that the tail gas that flows into in first pyrolysis circulation room through the cooling tube can obtain the gasification of secondary pyrolysis, the gasification tail gas of secondary pyrolysis is discharged from first tail gas outlet again, and enter spray column and sedimentation tank in proper order, spray dust removal and dewatering cooling, at this moment, the temperature of tail gas is lower, moisture is more; the second tail gas import of second pyrolysis circulation room is connected with the tail gas through spraying dust removal and dewatering cooling, can dry and heat this tail gas once more, makes its absorption and the discharge through active carbon in the follow-up adsorption tower smoothly to the temperature of make full use of second combustion chamber makes second combustion chamber collect secondary high temperature pyrolysis gasification, stoving and heating in an organic whole, and the function is diversified.

2. The utility model discloses a cooling tube is the L shape to make intraductal high temperature tail gas can obtain 90 degrees baffling, improve its effect of heating second pyrolysis circulation room.

3. The utility model discloses an indoor baffle that is equipped with of second pyrolysis circulation to change and the route that the indoor low temperature of extension entering second pyrolysis circulation was moist tail gas, make it can obtain fully drying and heating.

4. The utility model discloses an in-process at secondary pyrolysis gasification tail gas of first pyrolysis circulation room can fully decompose tail gas, and the lime-ash that produces among the tail gas decomposition process can pile up in the bottom of second pyrolysis circulation room, through row's cinder notch, can be convenient for the discharge of lime-ash.

Drawings

Fig. 1 is a schematic structural diagram of an oxygen-enriched circulation type high-temperature gasification secondary combustion chamber according to the utility model.

Description of the main reference numerals:

1-a first pyrolysis circulation chamber, 2-a radiating pipe, 3-a first tail gas outlet, 4-a second tail gas outlet, 5-a second tail gas inlet, 6-a partition plate, 7-a second pyrolysis circulation chamber, 8-a first tail gas inlet, 9-a radiating fin, 10-a shell and 11-a slag discharge port.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

Fig. 1 shows a schematic structural diagram of an oxygen-enriched circulation type high-temperature gasification secondary combustion chamber according to a preferred embodiment of the present invention, which comprises a shell 10 and a heat dissipation pipe 2. Referring to fig. 1, a first pyrolysis circulation chamber 1 and a second pyrolysis circulation chamber 7 are sequentially arranged in a shell 10 from bottom to top, the first pyrolysis circulation chamber 1 and the second pyrolysis circulation chamber 7 are arranged at intervals, a first tail gas outlet 3 is arranged at the top of the first pyrolysis circulation chamber 1, and a first tail gas inlet 8, a second tail gas inlet 5 and a second tail gas outlet 4 are arranged on the second pyrolysis circulation chamber 7. The radiating pipe 2 is arranged in the casing 10, the lower end of the radiating pipe 2 is positioned in the first pyrolysis circulation chamber 1, and the upper end of the radiating pipe 2 is positioned in the second pyrolysis circulation chamber 7 and communicated with the first tail gas inlet 8, so that the radiating pipe 2 is communicated with the tail gas outlet of the combustion furnace. When the tail gas purification device is used, the first tail gas inlet 8 is connected with a tail gas outlet of the combustion furnace, when high-temperature tail gas with the temperature of more than 850 ℃ in the combustion furnace flows through the radiating pipe 2, the first pyrolysis circulation chamber 1 and the second pyrolysis circulation chamber 7 can be heated, so that the tail gas which flows through the radiating pipe 2 and flows into the first pyrolysis circulation chamber 1 can be subjected to secondary high-temperature pyrolysis gasification, the tail gas subjected to secondary high-temperature pyrolysis gasification is discharged from the first tail gas outlet 3 and sequentially enters the spray tower and the sedimentation tank to be subjected to spray dust removal and water removal and cooling, and at the moment, the temperature of the tail gas is lower and the moisture is more; second tail gas import 5 of second pyrolysis circulation room 7 is connected with the tail gas through spraying dust removal and dewatering cooling, can dry and heat this tail gas once more, makes its temperature can heat to more than 300 ℃ to guarantee that this tail gas can be smoothly through the absorption and the discharge of active carbon in the follow-up adsorption tower, with the temperature of make full use of second combustion chamber, make second combustion chamber collect secondary high temperature pyrolysis gasification, dry and heat in an organic whole, the function is diversified.

Referring to fig. 1, the first pyrolysis circulation chamber 1 may have a cylindrical, rectangular parallelepiped or conical shape, and the second pyrolysis circulation chamber 7 may also have a cylindrical, rectangular parallelepiped or conical shape. Preferably, the first pyrolysis circulation chamber 1 has a cylindrical shape, and the second pyrolysis circulation chamber 7 has a rectangular parallelepiped shape.

Referring to fig. 1, preferably, the first tail gas inlet 8 is disposed on the right side wall of the second pyrolysis circulation chamber 7, and the heat dissipation pipe 2 is L-shaped, that is, the heat dissipation pipe 2 includes a horizontal pipe and a vertical pipe, the horizontal pipe is disposed in the second pyrolysis circulation chamber 7, and the outer end of the horizontal pipe is communicated with the first tail gas inlet 8; the vertical pipe is vertically arranged in the first pyrolysis circulation chamber 1, and the upper end of the vertical pipe upwards penetrates through the wall surface between the first pyrolysis circulation chamber 1 and the second pyrolysis circulation chamber 7 and extends into the second pyrolysis circulation chamber 7 to be communicated with the inner end of the transverse pipe. The L-shaped radiating pipe 2 can deflect the high-temperature tail gas in the pipe by 90 degrees, and the effect of heating the second pyrolysis circulating chamber 7 is improved.

Referring to fig. 1, preferably, the lower end of the heat pipe 2 is located at the middle-lower portion of the first pyrolysis circulation chamber 1 to extend the flow path of the exhaust gas, and the exhaust gas is discharged from the first exhaust gas outlet 3 after the first pyrolysis circulation chamber 1 is sufficiently heated.

Referring to fig. 1, it is preferable that the radiating pipe 2 is provided with radiating fins 9 on the outer side walls thereof to enhance the effect of the radiating pipe 2 heating the first and second pyrolysis circulation chambers 1 and 7.

Referring to fig. 1, preferably, a partition plate 6 is disposed in the second pyrolysis circulation chamber 7, the second tail gas inlet 5 and the second tail gas outlet 4 are disposed on a left side wall of the second pyrolysis circulation chamber 7 and are distributed oppositely front and back, the partition plate 6 is disposed between the second tail gas inlet 5 and the second tail gas outlet 4 to partition the second pyrolysis circulation chamber 7 into front and back heating chambers, and a gap is left between a right end of the partition plate 6 and a right side wall of the second pyrolysis circulation chamber 7 to communicate the two heating chambers, so that a path of low-temperature humid tail gas entering the second pyrolysis circulation chamber 7 can be changed and extended, and the low-temperature humid tail gas can be sufficiently dried and heated. Further preferably, the heat dissipation pipe 2 and the second exhaust gas inlet 5 are both located in the heating chamber on the same side of the partition plate 6, so as to further improve the heating effect.

Referring to fig. 1, preferably, the bottom of the first pyrolysis circulation chamber 1 is provided with a slag discharge port 11, and the slag discharge port 11 is provided with a cover plate capable of being opened and closed. First pyrolysis circulation room 1 can fully decompose tail gas at the in-process of secondary pyrolysis gasification tail gas, and the lime-ash that produces among the tail gas decomposition process can pile up in the bottom of second pyrolysis circulation room 7, through row cinder notch 11, the discharge of lime-ash of can being convenient for.

Referring to fig. 1, the housing 10 may be made of a high temperature resistant steel material, and preferably, the housing 10 is made of boiler steel, which is strong and durable.

The utility model discloses an divide into first pyrolysis circulation room 1 and second pyrolysis circulation room 7 in the casing 10, first pyrolysis circulation room 1 can carry out secondary high temperature pyrolysis gasification to the tail gas that comes out from firing burning furnace, second pyrolysis circulation room 7 can be dried and heat the tail gas that sprays to remove dust and dewatering cooling through spray column and sedimentation tank, make it can be smoothly through the absorption and the discharge of active carbon in the follow-up adsorption tower, with the temperature of make full use of second combustion chamber, make second combustion chamber collect secondary high temperature pyrolysis gasification, it is in an organic whole to dry and heat, the function is diversified.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (9)

1. An oxygen-enriched circulating high-temperature gasification secondary combustion chamber is characterized by comprising:

the device comprises a shell, a first pyrolysis circulating flow chamber and a second pyrolysis circulating flow chamber, wherein the shell is sequentially provided with the first pyrolysis circulating flow chamber and the second pyrolysis circulating flow chamber from bottom to top; and

the cooling tube, it set up in the casing, the lower extreme of this cooling tube is located in first pyrolysis circulation is indoor, and the upper end is located in the second pyrolysis circulation is indoor and with first tail gas import intercommunication.

2. An oxygen-enriched circulating-flow type high-temperature gasification secondary combustion chamber as claimed in claim 1, wherein the first pyrolysis circulating-flow chamber is cylindrical, and the second pyrolysis circulating-flow chamber is rectangular.

3. The oxygen-enriched circulating-type high-temperature gasification secondary combustion chamber as claimed in claim 1, wherein the first exhaust gas inlet is disposed on the right side wall of the second pyrolysis circulating-flow chamber, and the heat dissipation pipe is in an L shape.

4. An oxygen-enriched circulation type high-temperature gasification secondary combustion chamber as claimed in claim 1, wherein the lower ends of the heat-dissipating pipes are located at the middle lower part of the first pyrolysis circulation chamber.

5. The oxygen-enriched circulating type high-temperature gasification secondary combustion chamber as claimed in claim 1, wherein the outer side wall of the heat dissipation pipe is provided with heat dissipation fins.

6. The oxygen-enriched circulating-flow type high-temperature gasification secondary combustion chamber as claimed in claim 1, wherein a partition plate is arranged in the second pyrolysis circulating-flow chamber, the second tail gas inlet and the second tail gas outlet are both arranged on the left side wall of the second pyrolysis circulating-flow chamber and are distributed in a front-to-back opposite manner, the partition plate is arranged between the second tail gas inlet and the second tail gas outlet, and a gap is left between the right end of the partition plate and the right side wall of the second pyrolysis circulating-flow chamber.

7. The oxygen-enriched circulating type high-temperature gasification secondary combustion chamber as claimed in claim 6, wherein the heat dissipation pipe and the second tail gas inlet are located on the same side of the partition plate.

8. An oxygen-enriched circulating high-temperature gasification secondary combustion chamber as claimed in claim 1, wherein a slag discharge port is arranged at the bottom of the first pyrolysis circulating chamber, and the slag discharge port is provided with a cover plate which can be opened and closed.

9. An oxygen-rich loop high temperature gasification secondary combustion chamber as claimed in claim 1, wherein the shell is made of boiler steel.

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