阅读说明：本技术 一种民用安全防返火生物质炊事烤火炉 (Civil safety anti-backfire biomass cooking and baking stove ) 是由 刘锋 杨天坤 史海廷 魏冲 于 2020-12-25 设计创作，主要内容包括：本发明公开了一种民用安全防返火生物质炊事烤火炉,包括炉体以及设置在所述炉体内的送料防返火系统、气化燃烧系统、控制器和防散热结构；所述进料防返火系统包括料仓、防返火落料口、上料通道、进料绞龙和电机；所述气化燃烧系统包括燃烧室、燃烧炉箅、燃烧灰盒以及炊事口；所述防散热结构包括挡料板以及导风板；本发明采用多级配风、分区燃烧设计,通过严格控制燃烧反应过程有效抑制结焦、结渣现象的产生；两级双道空间隔离、区域划分,同时结合配风冷却有效避免了料仓返烧、回火等现象发生。(The invention discloses a civil safe anti-backfire biomass cooking and baking stove which comprises a stove body, a feeding anti-backfire system, a gasification combustion system, a controller and an anti-heat dissipation structure, wherein the feeding anti-backfire system, the gasification combustion system, the controller and the anti-heat dissipation structure are arranged in the stove body; the feeding anti-backfire system comprises a storage bin, an anti-backfire blanking port, a feeding channel, a feeding auger and a motor; the gasification combustion system comprises a combustion chamber, a combustion grate, a combustion ash box and a cooking opening; the heat dissipation prevention structure comprises a material baffle plate and an air deflector; the invention adopts the design of multi-stage air distribution and zone combustion, and effectively inhibits the generation of coking and slagging phenomena by strictly controlling the combustion reaction process; two-stage double-channel space isolation and area division are combined with air distribution cooling, and the phenomena of material bin back burning, tempering and the like are effectively avoided.)

1. A civil safe anti-backfire biomass cooking and baking stove is characterized by comprising a stove body, a feeding anti-backfire system, a gasification combustion system, a controller and an anti-heat dissipation structure, wherein the feeding anti-backfire system, the gasification combustion system, the controller and the anti-heat dissipation structure are arranged in the stove body;

the feeding anti-backfire system comprises a storage bin, an anti-backfire blanking port, a feeding channel, a feeding auger and a motor, wherein the feeding channel is used for communicating the storage bin with the anti-backfire blanking port;

the controller is arranged on the furnace body and is electrically connected with the motor, and the controller can control the motor to run intermittently;

the bottom opening of the feeding channel is communicated with the storage bin, and the top opening of the feeding channel is communicated with the anti-backfire blanking port;

the gasification combustion system comprises a combustion chamber, a combustion grate arranged in the combustion chamber, a combustion ash box arranged below the combustion grate and a cooking opening positioned at the top of the combustion chamber;

the feeding auger can push the fuel in the storage bin into the combustion chamber;

the anti-heat-dissipation structure comprises a material baffle hinged at the interface of the anti-backfire blanking port and the combustion chamber and an air deflector arranged on the inner wall of the combustion chamber in a sliding manner;

the striker plate is provided with a torsion spring, and under the action of the torsion spring, the striker plate can seal the lower opening of the anti-backfire blanking port;

the top surface and one side surface of the air deflector are cambered surfaces;

the combustion chamber is characterized in that a sliding block is fixedly connected to the air deflector, a sliding groove matched with the sliding block is formed in the inner wall of the combustion chamber, a spring is further installed in the sliding groove, and under the action of the spring, one end of the top surface of the air deflector can be flush with the lower opening of the anti-backfire blanking port.

2. The civil safety fire-return-prevention biomass cooking and baking stove as claimed in claim 1, further comprising a combustion-supporting air distribution system, wherein the combustion-supporting air distribution system comprises an air suction opening, an air distribution cover and an observation opening;

the air suction opening is arranged at the bottom of the furnace body;

the observation port is positioned at the upper opening of the fire return prevention blanking port;

the air distribution cover is communicated with an air inlet on the side surface of the combustion chamber and can introduce air entering from the air suction opening into the combustion chamber.

3. The civil safety fire-return-prevention biomass cooking and baking stove as claimed in claim 2, wherein a partition board is arranged in the air distribution cover, the partition board divides an air inlet on the side surface of the combustion chamber into an upper air inlet and a lower air inlet, and the combustion grate is positioned between the upper air inlet and the lower air inlet.

4. The civil safety fire-return-prevention biomass cooking and heating stove as claimed in claim 3, wherein the baffle plate is provided with a plurality of through holes.

Technical Field

The invention relates to a civil safe anti-backfire biomass cooking and baking stove.

Background

The heating stove has lower cost and has the functions of cooking and boiling water, and the stove is an ideal choice for urban and rural junctions and vast rural areas which do not have central heating and gas heating conditions; however, the fire-heating furnace in the prior art does not have the function of preventing backfire, so that the danger of backfire of the storage bin is easily caused, and therefore a civil safe backfire-preventing biomass cooking fire-heating furnace needs to be designed.

Disclosure of Invention

The invention provides a civil safe anti-backfire biomass cooking and baking furnace, which can solve the problem that a baking furnace in the prior art does not have the anti-backfire function and is easy to cause backfire of a storage bin.

A civil safe anti-backfire biomass cooking and baking stove comprises a stove body, a feeding anti-backfire system, a gasification combustion system, a controller and an anti-heat dissipation structure, wherein the feeding anti-backfire system, the gasification combustion system, the controller and the anti-heat dissipation structure are arranged in the stove body;

the feeding anti-backfire system comprises a storage bin, an anti-backfire blanking port, a feeding channel, a feeding auger and a motor, wherein the feeding channel is used for communicating the storage bin with the anti-backfire blanking port;

the controller is arranged on the furnace body and is electrically connected with the motor, and the controller can control the motor to run intermittently;

the bottom opening of the feeding channel is communicated with the storage bin, and the top opening of the feeding channel is communicated with the anti-backfire blanking port;

the gasification combustion system comprises a combustion chamber, a combustion grate arranged in the combustion chamber, a combustion ash box arranged below the combustion grate and a cooking opening positioned at the top of the combustion chamber;

the feeding auger can push the fuel in the storage bin into the combustion chamber;

the anti-heat-dissipation structure comprises a material baffle hinged at the interface of the anti-backfire blanking port and the combustion chamber and an air deflector arranged on the inner wall of the combustion chamber in a sliding manner;

the striker plate is provided with a torsion spring, and under the action of the torsion spring, the striker plate can seal the lower opening of the anti-backfire blanking port;

the top surface and one side surface of the air deflector are cambered surfaces;

the combustion chamber is characterized in that a sliding block is fixedly connected to the air deflector, a sliding groove matched with the sliding block is formed in the inner wall of the combustion chamber, a spring is further installed in the sliding groove, and under the action of the spring, one end of the top surface of the air deflector can be flush with the lower opening of the anti-backfire blanking port.

Preferably, the system also comprises a combustion-supporting air distribution system, wherein the combustion-supporting air distribution system comprises an air suction opening, an air distribution cover and an observation opening;

the air suction opening is arranged at the bottom of the furnace body;

the observation port is positioned at the upper opening of the fire return prevention blanking port;

the air distribution cover is communicated with an air inlet on the side surface of the combustion chamber and can introduce air entering from the air suction opening into the combustion chamber.

Preferably, a partition plate is arranged in the air distribution cover, the partition plate divides an air inlet on the side surface of the combustion chamber into an upper air inlet and a lower air inlet, and the combustion grate is positioned between the upper air inlet and the lower air inlet.

Preferably, the striker plate is provided with a plurality of through holes.

Compared with the prior art, the invention has the beneficial effects that: the invention adopts the design of multi-stage air distribution and zone combustion, and effectively inhibits the generation of coking and slagging phenomena by strictly controlling the combustion reaction process; the high-level blanking vibration provides continuous slight power for the combustion grate to remove burnt-off ash on the grate, and the possibility of coking and slagging is effectively avoided by reducing the high-temperature ash accumulation. The hearth adopts chimney suction micro negative pressure combustion, and the furnace temperature is effectively controlled, so that coking and slagging caused by local high temperature are prevented;

two-stage double-channel space isolation and area division are carried out, and the phenomena of material bin burning and tempering are effectively avoided by combining air distribution cooling; the fuel directly enters the fire-returning prevention blanking port to form a primary space isolation channel, the fall of the fire-returning prevention blanking port and the combustion grate to form a secondary space isolation channel, and the relatively low-temperature fire-returning prevention environment at the position of the blanking port is ensured by combining the negative-pressure running environment of the hearth and the cooling of tertiary air;

the patent product stove fully utilizes the aerodynamic principle, and specific temperature gradient difference is formed in the stove through the surface heat distribution characteristic of the stove body radiating wall, so that power is provided for the circulation of preheated fresh air entering from the air suction opening and exhausted from the radiating opening, the heat dissipation effect of the patent product is better, and the heating is faster.

Drawings

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

FIG. 2 is a schematic diagram II of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

fig. 4 is a schematic structural view of a heat dissipation prevention structure according to the present invention.

Description of reference numerals:

1-furnace body, 2-controller, 3-storage bin, 4-anti-backfire blanking port, 5-feeding auger, 6-motor, 7-combustion chamber, 8-combustion grate, 9-combustion ash box, 10-cooking port, 11-baffle plate, 12-air deflector, 13-spring, 14-air suction port, 15-air distribution cover, 16-observation port, 17-smoke exhaust port and 18-heat dissipation port.

Detailed Description

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.

As shown in fig. 1 to 4, the civil safety anti-backfire biomass cooking and baking stove provided by the embodiment of the invention comprises a stove body 1, and a feeding anti-backfire system, a gasification combustion system, a controller 2 and an anti-heat dissipation structure which are arranged in the stove body 1;

the feeding anti-backfire system comprises a storage bin 3, an anti-backfire blanking port 4, a feeding channel for communicating the storage bin 3 with the anti-backfire blanking port 4, a feeding auger 5 arranged in the feeding channel and a motor 6 for driving the feeding auger 4;

the controller 2 is arranged on the furnace body 1 and is electrically connected with the motor 6, and the controller 2 can control the motor 6 to run intermittently;

the bottom opening of the feeding channel is communicated with the bin 3, and the top opening of the feeding channel is communicated with the anti-backfire blanking port 4;

the gasification combustion system comprises a combustion chamber 7, a combustion grate 8 arranged in the combustion chamber 7, a combustion ash box 9 arranged below the combustion grate 8 and a cooking opening 10 positioned at the top of the combustion chamber 7;

the feeding auger 5 can push the fuel in the storage bin 3 into the combustion chamber 7;

the anti-heat-dissipation structure comprises a material baffle plate 11 hinged at the interface of the anti-backfire blanking port 4 and the combustion chamber 7 and an air deflector 12 arranged on the inner wall of the combustion chamber 7 in a sliding manner;

a torsion spring is arranged on the striker plate 11, and under the action of the torsion spring, the striker plate 11 can seal the lower opening of the anti-backfire blanking port 4;

the top surface and one side surface of the air deflector 12 are both cambered surfaces;

a sliding block is fixedly connected to the air deflector 12, a sliding groove matched with the sliding block is formed in the inner wall of the combustion chamber 7, a spring 13 is further installed in the sliding groove, and under the action of the spring 13, one end of the top surface of the air deflector 12 can be flush with the lower opening of the anti-backfire blanking port 4;

the air deflector 12 moves downwards under the action of the weight of the fuel, so as to avoid blocking the fuel from entering the combustion chamber 7;

the device also comprises a combustion-supporting air distribution system, wherein the combustion-supporting air distribution system comprises an air suction opening 14, an air distribution cover 15 and an observation opening 16;

the air suction opening 14 is arranged at the bottom of the furnace body 1;

the observation port 16 is positioned at the upper opening of the fire-return-preventing blanking port 4;

a plurality of through holes are formed in the material baffle plate 11, so that people can observe the combustion condition in the furnace from the observation port 16 conveniently;

the air distribution cover 15 is communicated with an air inlet on the side surface of the combustion chamber 7 and can introduce air entering from the air suction opening 14 into the combustion chamber 7;

a partition plate is arranged in the air distribution cover 15, the partition plate divides an air inlet on the side surface of the combustion chamber 7 into an upper air inlet and a lower air inlet, and the combustion grate 8 is positioned between the upper air inlet and the lower air inlet.

The working principle is as follows: the biomass briquette fuel to be used is stored in a stock bin 3, and when the biomass briquette fuel is operated, an operation instruction is sent out by a controller 2, then a motor 6 drives a feeding auger 5 to obliquely send the fuel in the stock bin 2 into an anti-backfire blanking port 4 and slide into a combustion chamber 7 from the bottom of the anti-backfire blanking port, and finally fall onto a combustion grate 8; when a certain amount of accumulated materials are on the combustion grate 8, the igniter can be started, and after the ignition is successful, the controller 2 sends an intermittent operation instruction to the motor 6 according to the use requirement of a user, so that quantitative combustion is sent to the combustion grate 8 to complete the subsequent combustion heat release process;

when fuel enters the combustion chamber 7 from the anti-backfire blanking port 4, the fuel pushes the striker plate 11 away under the action of gravity, passes through the top surface of the air deflector 12 and finally falls into the combustion chamber 7, when the motor 6 stops working, the striker plate 11 is automatically closed, and hot air cannot be led into the anti-backfire blanking port 4 under the action of the side cambered surface of the air deflector 12, so that heat is prevented from being lost from the observation port 16 through the anti-backfire blanking port 4;

the combustion of the shaped particles falling on the combustion grate 8 firstly absorbs the heat released by the combustion of the fixed carbon on the hearth and the lower part of the hearth to complete the processes of self-preheating, volatilization analysis and pyrolysis gasification, the volatile components, gasified gas and a small amount of flue gas of the fuel start to burn and release heat after contacting with secondary air positioned above the combustion grate 8 so as to maintain the temperature of the furnace, the mixed combustible gas which is continuously burnt and ascended in the combustion chamber 7 starts to be completely burnt after contacting with tertiary air entering from the anti-backfire blanking port 4 and provides a large amount of heat below a cooking port for cooking, then the flue gas fully contacts with the heat dissipation wall of the furnace body, the flue gas is finally discharged from a smoke outlet 17 connected with a high chimney after transferring the heat, the large amount of heat passes through the internal cavity of the furnace body with the heat dissipation wall of the furnace body dispersed, and the rest of heat is dissipated to the;

the formed fuel on the combustion grate 8 is changed into fixed carbon after completing volatilization analysis and cracking gasification, the fixed carbon is combined with primary air entering from the lower part of the combustion grate 8 on the grate for combustion and heat release, finally, burnout ash falls into the ash burning box 9 along with a small amount of unburned fixed carbon, and burnout of the residual small amount of fixed carbon and collection of the burnout ash are completed in the ash burning box;

the combustion-supporting air of the patent stove product adopts three-level air distribution, wherein primary air enters from the lower part of the combustion grate 8 and penetrates through the material layer on the combustion grate, and is mainly used for gasifying and volatilizing granular fuel on the combustion grate 8 and burning out fixed carbon to release heat; secondary air enters the hearth from the upper part of the combustion grate 8 and is mainly used for fully combusting volatile matters in the hearth and promoting the complete burnout of the accumulated fixed carbon on the grate; the tertiary air is mainly sucked from the observation port 16, passes through the anti-backfire blanking port 4, is preheated, is heated up and then enters the combustion chamber 7 from the lower part of the tertiary air to participate in the reaction; the combustion-supporting primary air and the secondary air are all entered from an air suction port 14 positioned at the bottom of the stove except for the tertiary air which is sucked from an observation port 16, but most of the fresh air entered from the air suction port 14 is exhausted from a plurality of heat dissipation ports 18 positioned at the upper part of the stove body after absorbing heat radiated by the heat dissipation wall of the stove body and flowing out in the stove, and the ambient environment is heated;

in order to enhance the cooking function, fuel can also be directly put into the hearth from the observation port 16; the ash pan 9 is mainly used for storing fuel burnout ash and completing the heat release of the remaining small amount of unburned fixed carbon through burning out. The ash accumulated in the ash burning box 9 can be periodically pumped out and directly poured out.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.