CN210796371U

CN210796371U - Negative pressure ignition device of gasification furnace

Info

Publication number: CN210796371U
Application number: CN201921674673.XU
Authority: CN
Inventors: 王志平
Original assignee: Changzhou Bo Ai Biomass Energy Technology Co ltd
Current assignee: Changzhou Bo Ai Biomass Energy Technology Co ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-06-19
Anticipated expiration: 2029-10-09

Abstract

The utility model discloses a gasifier negative pressure ignition, including the reacting furnace, the reacting furnace includes feed space, vaporizer, ash chamber from top to bottom, be equipped with the feed inlet on the top of feed space, there is the fan one side of feed space through the pipe connection, separate through the grate between vaporizer and the ash chamber and come, one side of ash chamber is equipped with the discharge gate, the grate top is equipped with the ignition hole, still be equipped with the lid of lighting a fire outward in the ignition hole. The utility model has the advantages that: because the gasification furnace is a downdraft gasification furnace, the gasification furnace runs in a negative pressure state, so that ignition can be performed outside the furnace, and the ignition is more convenient compared with the ignition in the traditional furnace.

Description

Negative pressure ignition device of gasification furnace

Technical Field

The utility model belongs to the technical field of the gasifier, concretely relates to gasifier negative pressure ignition.

Background

Combustible gas is a clean energy source. Especially, the combustible gas prepared by adopting non-fossil fuel or biomass fuel is more economic clean energy. With the explosion of energy crisis, the price of traditional fuels rises, the problems of high pollutant emission, high emission reduction cost and the like of the traditional fuels are increasingly highlighted, and the feasibility of replacing fuel oil with low-calorific-value gas such as biomass gas and the like and taking natural gas as fuel is increasingly emphasized. The biomass gas is a low-calorific-value gas, the quality of the biomass gas is different along with different components of the gas, the non-mineral fuel is adopted to prepare the combustible gas, waste can be utilized, the environment protection is very facilitated, particularly, good opportunity of changing waste into valuable is provided for large-area bush and small bamboo strips in hilly and mountainous areas, meanwhile, the living quality is effectively improved for residents in the mountainous areas through the use of the combustible gas, the existing equipment for preparing the biomass gas is relatively simple, an ignition device is generally arranged in a furnace, the fuel is ignited in the furnace to prepare the combustible gas, but the ignition method is very inconvenient and the safety coefficient is low.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model provides a following technical scheme: a negative pressure ignition device of a gasification furnace is characterized in that: including the reacting furnace, the reacting furnace includes feed chamber, vaporizer, ash discharging chamber from top to bottom, be equipped with the feed inlet on the top of feed chamber, there is the fan one side of feed chamber through the pipe connection, separate through the grate between vaporizer and the ash discharging chamber, ash discharging chamber one side is equipped with the discharge gate, the grate top is equipped with the ignition hole, still be equipped with the lid of igniteing outside the ignition hole, including ignition pipeline, gas pipeline and combustion-supporting pipeline in the ignition hole, the tail end of gas pipeline and combustion-supporting pipeline gathers together and forms the hybrid line.

Further, the ignition hole is arranged 200-300mm above the grate.

Furthermore, the number of the ignition holes is two, and the two ignition holes are symmetrically arranged above the grate.

Further, the diameter of the mixing pipe gradually shrinks toward the inside of the reaction furnace.

Furthermore, the tail end of the combustion-supporting pipeline is provided with a spray hole

Furthermore, a filter screen is arranged at the tail end of the combustion-supporting pipeline.

The utility model has the advantages that:

1. the application is a downdraft gasification furnace, so the furnace runs in a negative pressure state, and the ignition can be carried out outside the furnace through the ignition hole, and the ignition is more convenient compared with the traditional furnace.

2. The ignition hole in this application makes gas and combustion-supporting gas mixture more abundant, and impurity in the combustion-supporting gas still less simultaneously, and the burning is more complete, has improved combustion efficiency.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the ignition hole;

in the figure: 1-a reaction furnace, 2-a feeding chamber, 3-a gasification chamber, 4-an ash discharging chamber, 5-a feeding port, 6-a fire grate, 7-a fan, 8-a discharging port, 9-an ignition hole, 10-an ignition cover, 11-an ignition pipeline, 12-a gas pipeline, 13-a combustion-supporting pipeline, 14-a mixing pipeline, 15-a spraying hole, 16 and a filter screen.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Please refer to fig. 1-2, which is a negative pressure ignition device of a gasification furnace, comprising a reaction furnace 1, the reaction furnace 1 comprises a feeding chamber 2, a gasification chamber 3, an ash discharging chamber 4 from top to bottom, a feeding port 5 is arranged on the top of the feeding chamber 2, a water inlet pipe is arranged on the feeding port 5, the water inlet pipe is used for providing air and water for a water generator at the bottom, the water vapor generated by the water inlet pipe is used for participating in the reaction furnace 1, one side of the feeding chamber is connected with a blower through a pipeline for extracting the air in the furnace, the gasification chamber 3 and the ash discharging chamber 4 are separated through a grate 6, the fuel enters the gasification chamber 3 through the feeding port 5 for combustion, a discharging port 8 is arranged on one side of the ash discharging chamber 4 for discharging the ash after the reaction, an ignition hole 9 is arranged above the grate 6, an ignition cover 10 is arranged outside the ignition hole 9, the ignition cover is convenient for preventing the dust from, the ignition hole 9 comprises an ignition pipeline 11, a gas pipeline 12 and a combustion-supporting pipeline 13, the tail ends of the gas pipeline 12 and the combustion-supporting pipeline 13 are gathered together to form a mixing pipeline 14, the ignition mode in the application is an ignition mode outside the furnace, the application is a downdraft gasification furnace, when ignition is needed, a feed inlet is sealed by a cover, air in the furnace is extracted through a fan, so that the furnace is in a negative pressure state, the combustion-supporting gas and the gas in the combustion-supporting pipeline 13 and the gas pipeline 12 in the ignition hole 9 are mixed through the mixing pipeline 14 and then are continuously input into the gasification chamber 3, the tail end of the ignition pipeline 11 is contacted with the mixing pipeline 14, only a pipe orifice of the ignition pipeline 11 is needed to be ignited, flame can enter the gasification chamber 3 along the ignition pipeline, the fuel in the gasification chamber 3 is ignited, the diameter of the mixing pipeline 14 gradually shrinks towards the inside of the reaction furnace 1, so that the, the tail end of combustion-supporting pipeline 13 is equipped with orifice 15, can reduce the requirement to gas pressure, and the tail end of combustion-supporting pipeline 13 is equipped with filter screen 16, can further evolve the impurity in the combustion-supporting gas, helps abundant gas fully to burn, and ignition hole 9 sets up 200 + 300mm in 6 tops of grate, and quantity is two, sets up in 6 top symmetries of grate, the beneficial effects of the utility model are that: 1. the gasification furnace is a downdraft gasification furnace, so the inside of the furnace runs in a negative pressure state, and the ignition can be carried out outside the furnace through the ignition hole 9, and the ignition is more convenient compared with the traditional ignition inside the furnace; 2. ignition hole 9 in this application makes gas and combustion-supporting gas mixture more abundant, and impurity in the combustion-supporting gas still less simultaneously, and the burning is more complete, has improved combustion efficiency.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A negative pressure ignition device of a gasification furnace is characterized in that: including reacting furnace (1), reacting furnace (1) includes feed chamber (2), vaporizer (3), ash chamber (4) from top to bottom, be equipped with feed inlet (5) on the top of feed chamber (2), there is fan (7) one side of feed chamber (2) through the pipe connection, separate through fire grate (6) between vaporizer (3) and the ash chamber (4), ash chamber (4) one side is equipped with discharge gate (8), fire grate (6) top is equipped with ignition hole (9), ignition hole (9) still are equipped with some burner cap (10) outward, including ignition pipeline (11), gas pipeline (12) and combustion-supporting pipeline (13) in ignition hole (9), the tail end of gas pipeline (12) and combustion-supporting pipeline (13) is gathered together and is formed hybrid tube (14).

2. The negative pressure ignition device of the gasification furnace according to claim 1, characterized in that: the ignition hole (9) is arranged 200-300mm above the grate (6).

3. The negative pressure ignition device of the gasification furnace according to claim 2, characterized in that: the two ignition holes (9) are symmetrically arranged above the fire grate (6).

4. The negative pressure ignition device of the gasification furnace according to claim 3, characterized in that: the diameter of the mixing pipe (14) gradually shrinks towards the inside of the reaction furnace (1).

5. The negative pressure ignition device of the gasification furnace according to claim 4, wherein: and the tail end of the combustion-supporting pipeline (13) is provided with a spray hole (15).

6. The negative pressure ignition device of the gasification furnace according to claim 5, wherein: and a filter screen (16) is arranged at the tail end of the combustion-supporting pipeline (13).