Wood chip combustion equipment based on biomass heat supply

Abstract

The utility model relates to wood chip combustion equipment based on biomass heat supply, which comprises a box body, a combustion-supporting filtering device is arranged outside the box body, the combustion-supporting filtering device comprises a crushing roller, a first motor and a conveying box, the crushing roller is rotatably connected in the box body, the first motor is arranged on the back surface of the box body, and the conveying box is arranged on the box body. And a conveying box is arranged outside the box body. According to the wood chip combustion equipment based on biomass heat supply, a first motor is started to be matched with a gear to drive two crushing rollers to rotate so as to preliminarily crush wood chips, a second motor is started to drive a bolt feeding rotating shaft to rotate so as to secondarily crush the wood chips and send the wood chips into a combustion box, and the wood chips are ignited through an igniter and an ignition spray head; and wood chips are turned over through a third motor and a stirring rod, a draught fan is turned on to supply oxygen, and finally hot air enters a hot flow conveying pipeline through a chemical absorbent and a filter plate, so that the purposes of crushing and supporting combustion of the wood chips and filtering of the hot air are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of combustion heating, in particular to a wood chip combustion device based on biomass heating. Background Technique

[0002] The wood chip combustion device for biomass heating is an efficient and environment-friendly heat energy conversion device. It uses biomass fuels such as wood chips for combustion, generates heat energy and transfers the heat energy to the required systems, such as boilers, water heaters, etc. through heat exchangers and other means.

[0003] After retrieval, a utility model patent with the Chinese patent publication number CN220061732U discloses an energy-saving combustion heating device. In this energy-saving combustion heating device, by turning the handle by hand, the handle drives the rotation of the rotating plate through the rotating rod. The rotating plate can stir the fuel to make it loose, avoid the fuel from piling up together, and thus facilitate the full combustion of the fuel. The operation is convenient and the use effect is good. When the fuel is insufficient, pull the handle, the handle drives the movement of the baffle through the pull rod and makes the spring contract, and then add the fuel into the inner part of the housing through the hopper. After the addition is completed, release the handle, and the spring drives the baffle to reset to avoid impurities from falling in, which is safer and convenient for fuel addition. The design of the hopper with a large upper part and a small lower part can facilitate fuel addition and avoid scattering. However, this energy-saving combustion heating device does not have a crushing device and a filtering device. When the wood chips are too large, it is difficult to burn quickly, resulting in incomplete combustion of the wood chips in the combustion chamber. At the same time, the fine dust mixed in the hot gas generated by combustion is not removed and will not be sent into the heat exchanger, resulting in a greatly reduced service life of the heat exchanger. Therefore, a wood chip combustion device based on biomass heating is proposed. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a wood chip combustion device based on biomass heating, which has the advantages of crushing and assisting combustion of wood chips and filtering hot gas, and solves the problem that ordinary combustion devices do not have the functions of assisting combustion and filtering.

[0005] To achieve the above object, the utility model provides the following technical solution: A wood chip combustion device based on biomass heating, including a box body, a combustion assisting and filtering device is arranged outside the box body, and a combustion device is arranged outside the box body;

[0006] The combustion-assisting filtration device includes a crushing roller, a first motor, a conveying box, a second motor, a blower, a third motor, a filtration box, and a filter plate. A crushing roller is rotatably connected inside the box body. The first motor is arranged on the back of the box body. A conveying box is arranged outside the box body. The second motor is arranged on the left side of the conveying box. A blower is arranged outside the box body. A third motor is arranged outside the box body. A filtration box is arranged outside the box body. A filter plate is movably connected inside the filtration box.

[0007] Furthermore, the combustion device includes a combustion box, an igniter, an ignition nozzle, and a heat flow conveying pipeline. A combustion box is fixedly installed on the right side of the conveying box. An igniter is fixedly installed on the left side of the combustion box. An ignition nozzle is fixedly installed on the right side of the igniter. A heat flow conveying pipeline is fixedly installed on the top of the filtration box.

[0008] Furthermore, the number of the crushing rollers is two. The backs of the two crushing rollers penetrate through the inner rear wall of the box body and extend to the outside of the box body. Gears are fixedly installed on the outer surfaces of the two crushing rollers. The two gears are meshed with each other. The back of one of the crushing rollers is fixedly connected to the output end of the first motor. A valve discharge pipe is fixedly installed at the bottom of the box body.

[0009] Furthermore, the bottom of the valve discharge pipe is fixedly connected to the top of the conveying box. A spiral feeding rotating shaft is rotatably connected inside the conveying box. The left side of the spiral feeding rotating shaft penetrates through the inner left wall of the conveying box and is fixedly connected to the output end of the second motor.

[0010] Furthermore, a stirring rod is rotatably connected inside the combustion box. The right side of the stirring rod penetrates through the inner right wall of the combustion box and is fixedly connected to the output end of the third motor. A support plate is fixedly installed on the left side of the combustion box. The top of the support plate is fixedly connected to the bottom of the blower. A filter air extraction pipe is fixedly installed on the front of the blower. An air supply pipe is fixedly installed on the right side of the blower. The right side of the air supply pipe penetrates through the left side of the combustion box and extends to the inside of the combustion box.

[0011] Furthermore, the right side of the combustion box is fixedly connected to the left side of the filtration box. An L-shaped smoke inlet pipe is fixedly installed on the left side inside the filtration box. The left side of the L-shaped smoke inlet pipe penetrates through the inner left wall of the filtration box and the right side of the combustion box and extends to the inside of the combustion box. A chemical absorbent is arranged inside the filtration box. A feed inlet is opened at the top of the box body. A first box door is hinged on the front of the combustion box. A second box door is hinged on the front of the filtration box. A valve drain pipe is fixedly installed on the right side of the filtration box.

[0012] Beneficial Effects

[0013] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0014] The wood chip combustion equipment based on biomass heating pours wood chips into the box body through the feed port, and turns on the first motor to drive two crushing rollers to rotate through the gears, so as to crush the wood chips. Then, the valve of the discharge pipe is opened, and the preliminarily crushed wood chips are sent to the conveying box, and the second motor is turned on to drive the screw feeding rotating shaft to rotate, so as to crush the wood chips twice and send them into the combustion box. The wood chips are ignited through the igniter and the ignition nozzle, and the wood chips are turned over by the third motor and the stirring rod. The blower is turned on to supply oxygen. Finally, the hot air enters the heat flow conveying pipeline through the chemical absorbent and the filter plate, so as to achieve the purpose of crushing and assisting combustion of the wood chips and filtering the hot air. Brief Description of the Drawings

[0015] Figure 1 It is a three-dimensional structure schematic diagram of the present utility model;

[0016] Figure 2 It is a front sectional structure schematic diagram of the present utility model;

[0017] Figure 3 It is a top view structure schematic diagram of the box body of the present utility model;

[0018] Figure 4 It is a front sectional structure schematic diagram of the filter box of the present utility model.

[0019] In the figure: 1. Box body; 2. Combustion assisting and filtering device; 201. Crushing roller; 202. First motor; 203. Conveying box; 204. Second motor; 205. Blower; 206. Third motor; 207. Filter box; 208. Filter plate; 3. Combustion device; 301. Combustion box; 302. Igniter; 303. Ignition nozzle; 304. Heat flow conveying pipeline. Detailed Embodiment

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-4 , a wood chip combustion equipment based on biomass heating, including a box body 1, a combustion assisting and filtering device 2 is arranged outside the box body 1, and a combustion device 3 is arranged outside the box body 1;

[0022] The combustion-aiding filtration device 2 includes a crushing roller 201, a first motor 202, a conveying box 203, a second motor 204, a blower 205, a third motor 206, a filtration box 207 and a filter plate 208. The crushing roller 201 is rotatably connected inside the box body 1, the first motor 202 is arranged on the back of the box body 1, the conveying box 203 is arranged outside the box body 1, the second motor 204 is arranged on the left side of the conveying box 203, the blower 205 is arranged outside the box body 1, the third motor 206 is arranged outside the box body 1, the filtration box 207 is arranged outside the box body 1, and the filter plate 208 is movably connected inside the filtration box 207.

[0023] Furthermore, the combustion device 3 includes a combustion box 301, an igniter 302, an ignition nozzle 303 and a heat flow conveying pipeline 304. The combustion box 301 is fixedly installed on the right side of the conveying box 203, the igniter 302 is fixedly installed on the left side of the combustion box 301, the ignition nozzle 303 is fixedly installed on the right side of the igniter 302, and the heat flow conveying pipeline 304 is fixedly installed on the top of the filtration box 207.

[0024] Specifically, as Figure 4 shown, the chemical absorbent is an alkaline solution, and the alkaline solution can react with acidic gases such as sulfur dioxide and hydrogen sulfide in the hot gas to undergo a neutralization reaction, generating corresponding salts and water, thereby reducing the emission of harmful gases in the hot gas and preliminarily filtering the dust in the hot gas. Then, the hot gas enters the heat flow conveying pipeline 304 after being secondarily filtered by the filter plate 208.

[0025] Specifically, as Figure 4 shown, the filter plate 208 is made of activated carbon material. Activated carbon is a porous carbonaceous material with a large specific surface area, and its filtration principle is mainly based on its strong adsorption performance. The internal structure of activated carbon is filled with a large number of micropores and mesopores, and these pores provide a large specific surface area for activated carbon, enabling it to adsorb a large amount of substances, thereby secondarily filtering the dust and impurities in the hot gas.

[0026] Specifically, as Figure 2 shown, the purpose of setting the blower 205 is that when the wood chips burn in the combustion box 301, the blower 205 sends external air into the combustion box 301, thereby ensuring sufficient oxygen content in the combustion box 301. At the same time, the internal pressure of the combustion box 301 is increased through the blower 205, so that the hot gas enters the filtration box 207 through the L-shaped smoke inlet pipe to be filtered.

[0027] During implementation, the following steps are carried out for operation:

[0028] 1) First, pour the wood chips into the box body 1 through the feed port, and turn on the first motor 202 to drive the two crushing rollers 201 to rotate through the gears to crush the wood chips.

[0029] 2) Then turn on the second motor 204 and the valve of the discharge pipe, and perform secondary crushing on the wood chips through the spiral feeding rotating shaft, while feeding the wood chips into the combustion chamber 301;

[0030] 3) Then ignite the wood chips through the igniter 302 and the ignition nozzle 303, and turn on the third motor 206 to drive the stirring rod to rotate to prevent uneven combustion caused by the accumulation of wood chips;

[0031] 4) Finally, turn on the blower 205 to ensure sufficient oxygen in the combustion chamber 301. At the same time, send the hot air into the filter box 207 through the L-shaped smoke inlet pipe, and after being filtered, it enters the heat flow conveying pipeline 304.

[0032] In summary, for the wood chip combustion device based on biomass heating, the wood chips are poured into the box body 1 through the feed inlet, and the first motor 202 is turned on to drive the two crushing rollers 201 to rotate through the gears, so as to crush the wood chips. Then, the valve of the discharge pipe is opened, and the preliminarily crushed wood chips are sent to the conveying box 203. Then, the second motor 204 is turned on to drive the screw feeding rotating shaft to rotate, crush the wood chips twice and send them into the combustion chamber 301. The wood chips are ignited through the igniter 302 and the ignition nozzle 303, and the wood chips are turned over by the third motor 206 and the stirring rod. The blower 205 is turned on to supply oxygen to the combustion chamber 301. Finally, the hot air enters the heat flow conveying pipeline 304 through the chemical absorbent and the filter plate 208, so as to achieve the purpose of crushing and assisting combustion of the wood chips and filtering the hot air.

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wood chip combustion device based on biomass heating, comprising a housing (1), characterized in that: A combustion-supporting filtering device (2) is arranged outside the box (1), and a combustion device (3) is arranged outside the box (1); The combustion-supporting filtering device (2) comprises a crushing roller (201), a first motor (202), a conveying box (203), a second motor (204), a fan (205), a third motor (206), a filter box (207) and a filter plate (208); the crushing roller (201) is rotatably connected inside the box body (1); the first motor (202) is arranged on the back of the box body (1); the conveying box (203) is arranged outside the box body (1); the second motor (204) is arranged on the left side of the conveying box (203); the fan (205) is arranged outside the box body (1); the third motor (206) is arranged outside the box body (1); the filter box (207) is arranged outside the box body (1); and the filter plate (208) is movably connected inside the filter box (207).

2. A wood chip combustion device based on biomass heating according to claim 1, characterized in that: The combustion device (3) comprises a combustion box (301), an igniter (302), an ignition nozzle (303) and a heat transfer pipe (304); the combustion box (301) is fixedly mounted on the right side of the transfer box (203); the igniter (302) is fixedly mounted on the left side of the combustion box (301); the ignition nozzle (303) is fixedly mounted on the right side of the igniter (302); and the heat transfer pipe (304) is fixedly mounted on the top of the filter box (207).

3. The wood chip combustion equipment based on biomass heating according to claim 1, characterized in that: There are two crushing rollers (201), the back sides of the two crushing rollers (201) penetrate the inner rear wall of the box body (1) and extend to the outside of the box body (1), the outer surfaces of the two crushing rollers (201) are fixedly mounted with gears, the two gears are meshed with each other, the back side of one of the crushing rollers (201) is fixedly connected to the output end of the first motor (202), and a valve discharge pipe is fixedly mounted at the bottom of the box body (1).

4. The wood chip combustion device based on biomass heating according to claim 3 is characterized in that: The bottom of the valve discharge pipe is fixedly connected to the top of the conveying box (203), and a spiral feed shaft is rotatably connected inside the conveying box (203). The left side of the spiral feed shaft passes through the inner left wall of the conveying box (203) and is fixedly connected to the output end of the second motor (204).

5. The wood chip combustion equipment based on biomass heating according to claim 2, characterized in that: A stirring rod is rotatably connected to the interior of the combustion box (301), the right side of the stirring rod penetrates the inner right wall of the combustion box (301) and is fixedly connected to the output end of the third motor (206), a support plate is fixedly installed on the left side of the combustion box (301), the top of the support plate is fixedly connected to the bottom of the fan (205), a filter exhaust pipe is fixedly installed on the front of the fan (205), an air supply pipe is fixedly installed on the right side of the fan (205), and the right side of the air supply pipe penetrates the left side of the combustion box (301) and extends to the interior of the combustion box (301).

6. The wood chip combustion equipment based on biomass heating according to claim 2, characterized in that: The right side of the combustion box (301) is fixedly connected to the left side of the filter box (207); an L-shaped smoke inlet pipe is fixedly installed on the inner left side of the filter box (207); the left side of the L-shaped smoke inlet pipe penetrates the inner left wall of the filter box (207) and the right side of the combustion box (301), and extends to the interior of the combustion box (301); a chemical absorbent is arranged inside the filter box (207); a feed port is provided on the top of the box body (1); a first box door is hingedly connected to the front of the combustion box (301); a second box door is hingedly connected to the front of the filter box (207); and a valve drain pipe is fixedly installed on the right side of the filter box (207).

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