CN210683674U

CN210683674U - Carbonization furnace capable of recycling flue gas

Info

Publication number: CN210683674U
Application number: CN201920951547.8U
Authority: CN
Inventors: 张睿
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-21
Filing date: 2019-06-21
Publication date: 2020-06-05
Anticipated expiration: 2029-06-21

Abstract

The utility model discloses a retort of recycle flue gas, including the furnace body, the both sides of furnace body are equipped with first switch door and second switch door respectively, and the bottom of furnace body is equipped with the burning heating furnace, are equipped with the gas pipeline and the burning furnace end that provide combustible gas in the burning heating furnace, and the furnace body is connected with flue gas recovery unit, and flue gas recovery unit's inside is equipped with flue gas cooling device, and flue gas cooling device includes the cooling tube, and the setting of buckling about the cooling tube is continuous. This retort of recycle flue gas, send into timber in the furnace body through first switch door, then add the heat carbonization and handle, the flue gas that the carbonization in-process produced passes through flue gas recovery device recycle, under the flue gas cooling device effect in flue gas recovery device, wooden tar in the flue gas, by-product condensation such as pyrolkigneous liquid form liquid, make its and carbon monoxide, combustible gas separation such as methane to carry out recycle to by-product and combustible gas respectively, this utility model is used for the system charcoal equipment field.

Description

Carbonization furnace capable of recycling flue gas

Technical Field

The utility model relates to a system charcoal equipment field especially relates to a retort of recycle flue gas.

Background

The carbonization furnace is used for producing charcoal, wood is put into the carbonization furnace, the carbonization furnace is generally heated by adopting a heating and dry distillation process, the temperature in the furnace is gradually increased, and the carbonization process of the carbonization furnace can be divided into the following three stages: (1) and (3) a drying stage: starting ignition, raising the temperature of the furnace to about 160 ℃, and evaporating the moisture contained in the wood by means of the external heat and the heat generated by self combustion; (2) the furnace temperature is increased to 160-280 ℃, at the moment, the wood is subjected to thermal decomposition reaction, and the chemical composition of the wood begins to change; (3) the furnace temperature rises to 300-650 ℃ and can reach 800-1000 ℃, and in the stage, wood is rapidly decomposed and is distilled into charcoal at high temperature.

The charcoal prepared by adopting the high-temperature heating and dry distillation process can generate a large amount of smoke which contains combustible gases such as carbon monoxide, oxygen, nitrogen, methane, propane and the like and is accompanied by byproducts such as wood tar, pyroligneous liquor and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a retort of recycle flue gas is provided, can carry out recycle to the flue gas that the system charcoal process produced.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a retort of recycle flue gas, includes the furnace body, the both sides of furnace body are equipped with first switch door and second switch door respectively, the bottom of furnace body is equipped with the burning heating furnace, be equipped with the gas pipeline and the burning furnace end that provide combustible gas in the burning heating furnace, the furnace body is connected with flue gas recovery unit, flue gas recovery unit's inside is equipped with flue gas cooling device, flue gas cooling device includes the cooling tube, the setting of constantly buckling from top to bottom of cooling tube, the both ends of cooling tube are equipped with cooling tube water inlet and cooling tube delivery port respectively.

Preferably, the upper part and the lower part of the flue gas recovery device are respectively provided with an air inlet and an air outlet, the top of the furnace body is connected with an exhaust pipe, the exhaust pipe is connected with the air inlet of the flue gas recovery device, and the air outlet of the flue gas recovery device is connected with a fuel gas pipeline.

Preferably, the bottom of the flue gas recovery device is provided with a funnel-shaped recovery part, and the bottom of the recovery part is provided with a valve.

Preferably, the second switch door is connected with a cooling channel, the end of the cooling channel is provided with a third switch door, the outside of the cooling channel is provided with a primary cooling device, and the primary cooling device is a fan.

Preferably, a plurality of radiating fins are arranged on the cooling channel.

Preferably, the device further comprises a secondary cooling device, wherein the secondary cooling device comprises a plurality of spray headers for spraying mist water.

Preferably, the periphery of the furnace body is wrapped with heat preservation cotton.

Preferably, a transparent observation window is arranged on the furnace body.

Preferably, a temperature detection sensor is arranged in the furnace body.

The utility model has the advantages that: this retort of recycle flue gas, send into the furnace body with timber through first switch door, then heat the carbomorphism and handle, thereby the burning furnace head burning in the burning heater heats the furnace body, make and rise temperature gradually in the furnace body, timber carbomorphism forms the charcoal gradually, flue gas that the carbomorphism in-process produced passes through flue gas recovery unit recycle, under the flue gas cooling device effect in the flue gas recovery unit, wooden tar in the flue gas, by-product condensation such as pyrolkigneous liquid forms liquid, make it separate with combustible gas such as carbon monoxide, methane, thereby carry out recycle to by-product and combustible gas respectively.

Drawings

The present invention will be further explained with reference to the accompanying drawings:

fig. 1 is a schematic plan view of an embodiment of the present invention.

Detailed Description

Referring to fig. 1, the utility model relates to a retort of recycle flue gas, including furnace body 10, the both sides of furnace body 10 are equipped with first switch door 11 and second switch door 12 respectively, the bottom of furnace body 10 is equipped with combustion heating furnace 50, be equipped with the gas pipeline 51 and the burning furnace end (not drawn) that provide combustible gas in the combustion heating furnace 50, furnace body 10 is connected with flue gas recovery unit 60, flue gas recovery unit 60's inside is equipped with flue gas cooling device, flue gas cooling device includes cooling tube 65, the setting of constantly buckling from top to bottom of cooling tube 65, the both ends of cooling tube 65 are equipped with cooling tube water inlet 651 and cooling tube delivery port 652 respectively.

This retort of recycle flue gas, in sending into furnace body 10 through first switch door 11 timber, then heat the carbonization and handle, thereby the burning furnace end burning heating furnace body 10 in the burning heating furnace 50 makes and rises temperature gradually in the furnace body 10, and timber carbomorphism forms the charcoal gradually, and the flue gas that produces in the carbonization process passes through flue gas recovery unit 60 recycle. The flue gas mainly comprises combustible gases such as carbon monoxide and methane and byproducts such as wood tar and pyroligneous liquor, wherein the byproducts such as the wood tar and the pyroligneous liquor are liquid at normal temperature, so that under the action of a flue gas cooling device in the flue gas recovery device 60, the byproducts such as the wood tar and the pyroligneous liquor in the flue gas are condensed into liquid, are separated from the combustible gases such as the carbon monoxide and the methane, and are respectively recycled. Flue gas cooling device lets in cooling tube 65 through the cooling water and realizes the cooling effect, and the setting of constantly buckling from top to bottom of cooling tube 65 can increase the area of contact of cooling tube 65 and flue gas to improve cooling efficiency.

The bottom of the flue gas recovery device 60 is provided with a funnel-shaped recovery part 63, and the bottom of the recovery part 63 is provided with a valve 64. In the flue gas recovery device 60, byproducts such as wood tar, pyroligneous liquor and the like in the flue gas are condensed into liquid and fall into the funnel-shaped recovery part 63, and the byproducts such as the wood tar, the pyroligneous liquor and the like can be taken out by opening the valve 64 at the bottom, wherein the wood tar and the pyroligneous liquor are common chemical raw materials.

The upper part and the lower part of the flue gas recovery device 60 are respectively provided with a gas inlet 61 and a gas outlet 62, the top of the furnace body 10 is connected with a gas exhaust pipe 14, the gas exhaust pipe 14 is connected with the gas inlet 61 of the flue gas recovery device 60, and the gas outlet 62 of the flue gas recovery device 60 is connected with the gas pipeline 51. After byproducts such as wood tar and pyroligneous liquor are separated from the flue gas in the flue gas recovery device 60, the remaining combustible gas such as carbon monoxide and methane is directly sent into a gas pipeline 51 in the combustion heating furnace 50 for combustion of the combustion furnace end, so that the flue gas is fully utilized.

After the wood in the furnace body 10 is heated and carbonized, the charcoal needs to be cooled to reduce the temperature to about 50 ℃. Preferably, the second opening/closing door 12 is connected to a cooling duct 20, a third opening/closing door 13 is provided at an end of the cooling duct 20, and a primary cooling device, which is a fan 30, is provided outside the cooling duct 20. After the wood is carbonized, the wood is sent into the cooling channel 20 through the second switch door 12, and at the position of the primary cooling device in the cooling channel 20, the wood is firstly cooled for a period of time by blowing through the fan 30, and then the temperature of the charcoal is preliminarily reduced. The cooling channel 20 is provided with a plurality of radiating fins 21, so that the contact area of the cooling channel 20 and air is increased, and the cooling efficiency is improved.

Further, the device also comprises a secondary cooling device, wherein the secondary cooling device comprises a plurality of spray headers 40 for spraying mist water. The charcoal is cooled by the first-stage cooling device and then sent to the second-stage cooling device, and the atomized water is sprayed by the spray header 40 for further cooling, so that spontaneous combustion caused by residual sparks on the charcoal inner core is avoided, the fire source is completely eradicated, and finally the charcoal is sent out through the third switch door 13. Through one-level cooling device and second grade cooling device, can carry out rapid cooling to the charcoal.

Preferably, the periphery of the furnace body 10 is wrapped with heat insulation cotton 15, the heat insulation cotton 15 is made of ceramic fiber cotton, heat loss is reduced through the heat insulation cotton 15, heating efficiency is improved, and therefore production efficiency of charcoal is improved.

Preferably, the furnace body 10 is provided with a transparent observation window 16, and the carbonization of the wood in the furnace body 10 can be observed through the observation window 16.

Preferably, a temperature detection sensor is provided in the furnace body 10, and the temperature in the furnace body 10 is detected by the temperature detection sensor, and the heating temperature is controlled more accurately by controlling the heating power of the combustion heating furnace 50 based on the temperature.

In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.

The features of the embodiments and embodiments described herein above may be combined with each other without conflict.

Of course, the invention is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and these equivalent modifications or substitutions are included in the scope defined by the claims of the present application.

Claims

1. The utility model provides a retort of recycle flue gas which characterized in that: the furnace comprises a furnace body, the both sides of furnace body are equipped with first switch door and second switch door respectively, the bottom of furnace body is equipped with the burning heating furnace, be equipped with the gas pipeline and the burning furnace end that provide combustible gas in the burning heating furnace, the furnace body is connected with flue gas recovery unit, flue gas recovery unit's inside is equipped with flue gas cooling device, flue gas cooling device includes the cooling tube, the setting of constantly buckling from top to bottom of cooling tube, the both ends of cooling tube are equipped with cooling tube water inlet and cooling tube delivery port respectively.

2. The carbonization furnace capable of recycling flue gas as claimed in claim 1, wherein: the upper portion and the lower portion of the flue gas recovery device are respectively provided with an air inlet and an air outlet, the top of the furnace body is connected with an exhaust pipe, the exhaust pipe is connected with the air inlet of the flue gas recovery device, and the air outlet of the flue gas recovery device is connected with a fuel gas pipeline.

3. The carbonization furnace capable of recycling flue gas as claimed in claim 2, wherein: the bottom of flue gas recovery unit is equipped with the recovery portion of infundibulate, the bottom of recovery portion is equipped with the valve.

4. The carbonization furnace capable of recycling flue gas according to claim 1 or 3, wherein: the second switch door is connected with a cooling channel, a third switch door is arranged at the end of the cooling channel, a primary cooling device is arranged outside the cooling channel, and the primary cooling device is a fan.

5. The carbonization furnace capable of recycling flue gas as claimed in claim 4, wherein: and a plurality of radiating fins are arranged on the cooling channel.

6. The carbonization furnace capable of recycling flue gas as claimed in claim 4, wherein: the device also comprises a secondary cooling device, wherein the secondary cooling device comprises a plurality of spray headers for spraying mist water.

7. The carbonization furnace capable of recycling flue gas as claimed in claim 1, wherein: the periphery of the furnace body is wrapped with heat insulation cotton.

8. The carbonization furnace capable of recycling flue gas as claimed in claim 1, wherein: and a transparent observation window is arranged on the furnace body.

9. The carbonization furnace capable of recycling flue gas as claimed in claim 1, wherein: and a temperature detection sensor is arranged in the furnace body.