Boiler device for burning biomass raw materials

Abstract

The utility model relates to the field of boilers, and discloses a boiler device for burning biomass raw materials, which comprises a boiler body, a water pipe and a chimney, a material dispersing mechanism is arranged on the boiler body, the biomass raw materials are put into the boiler body through a feeding port, and a driving motor is turned on, so that the effects of stratified burning and flattening of the raw materials with different sizes can be realized. The biomass raw materials are combusted more sufficiently, the utilization rate of biomass energy is increased, meanwhile, when the biomass raw materials are fed and ash is removed, gas at the feeding opening and the discharging opening in the furnace body can be exhausted by opening the draught fan, leakage of harmful gas can be effectively avoided, and under the clamping of the inclined plate, the biomass raw materials are combusted more sufficiently, and the utilization rate of the biomass energy is increased. And flames cannot jump out of the feeding opening and the discharging opening in the boiler body, so that the safety of the boiler is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of boilers, specifically a boiler device for burning biomass raw materials. Background Technology

[0002] A biomass-fired boiler is a type of boiler that uses biomass energy as fuel and has various types and applications. It is widely used in agricultural production and daily life, such as in the drying of grains, feed, and tobacco, heating indoor greenhouses, and heating in animal and poultry farming.

[0003] Chinese patent CN215675128U discloses a boiler device suitable for burning biomass feedstock. A base plate is welded to the bottom of the shell via support legs, and reinforcing legs are welded between the left and right support legs. Mounting holes are provided on the left surface of the base plate. Lifting blocks are welded to both sides of the shell, and a stabilizing ring is welded between the lifting blocks. A stabilizing column is welded between the stabilizing ring and the shell. A fixing seat is mounted on the upper right of the base plate via screw a. The fixing seat includes a fixing plate and a fixing leg, with the fixing leg welded to the lower part of the fixing plate. A blower is mounted on the upper part of the fixing plate via screw b. The blower's outlet pipe is connected to the shell. A dust cover is mounted on the upper part of the fixing plate via screw c. The dust cover is located outside the blower, and an installation strip is welded to the lower right of the dust cover. A handle is mounted on the upper part of the dust cover via screws. The dual design of the stabilizing ring and stabilizing column improves the stability during lifting, and the dust cover also protects the blower from dust.

[0004] The aforementioned device improves hoisting stability and boiler dust prevention. However, existing devices typically burn biomass raw materials of different sizes and calorific values ​​together, resulting in low biomass energy utilization. Furthermore, burning biomass raw materials generates a large amount of ash, which can easily cause boiler blockage if not cleaned up in time. However, existing devices can cause harmful gas leaks when cleaning ash. Therefore, there is a need for a boiler device that burns biomass raw materials. Utility Model Content

[0005] The purpose of this invention is to provide a boiler device for burning biomass raw materials, so as to solve the problems of low utilization rate of biomass energy and leakage of harmful gases during feeding and ash removal in existing devices.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a boiler device for burning biomass raw materials, comprising a furnace body, water pipes, and a chimney, wherein a material dispersing mechanism is provided on the furnace body; the material dispersing mechanism includes a first grate and a second grate and a drive motor, the drive motor being fixedly installed at the rear of the furnace body, a connecting rod being fixedly installed between the first grate and the second grate, two buffer springs being fixedly installed side-by-side between the connecting rod and the furnace body, and a shaped block being fixedly installed at the output end of the drive motor.

[0007] Preferably, the No. 1 grate and the No. 2 grate are slidably connected to the furnace body by several crossbars, and the gap size on the No. 1 grate is larger than the gap size on the No. 2 grate.

[0008] Preferably, the two ends of the irregular block are each composed of two semicircles with different inner diameters, and the irregular block is fitted and connected to the connecting rod.

[0009] Preferably, the furnace body is provided with a gas dispersion mechanism, which includes a first air hopper and a second air hopper. The first air hopper and the second air hopper are respectively fixedly installed at the feeding port and the discharge port of the furnace body, and a guide pipe is fixedly installed between the first air hopper and the second air hopper. A fan is fixedly installed at one end of the guide pipe, and a gas dispersion pipe is fixedly installed at the output end of the fan. Inclined plates are fixedly installed inside the furnace body and at the lower side of the first air hopper and the second air hopper, respectively.

[0010] Preferably, slots are provided on the lower sides of both the No. 1 and No. 2 air hoppers, and ramps are provided on the upper part of the No. 1 air hopper and the lower part of the No. 2 air hopper.

[0011] Preferably, the upper and lower parts of the furnace body are provided with partitions, and the partitions are rotatably connected to the furnace body by two support springs.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1) This boiler device for burning biomass feedstock rotates the irregularly shaped blocks by controlling the drive motor, thereby causing the No. 1 grate and the No. 2 grate to move back and forth in the furnace body. When in use, the biomass feedstock is put into the furnace body through the feeding port and the drive motor is turned on, which can achieve the effect of layered combustion and leveling of feedstock of different sizes, so that the combustion of biomass feedstock is more complete and the utilization rate of biomass energy is improved.

[0014] 2) This boiler device for burning biomass feedstock has No. 2 and No. 1 air ducts installed inside the feeding port and discharge port of the furnace body, respectively. The No. 2 and No. 1 air ducts are connected to the blower through ducts. When feeding biomass feedstock and removing ash, the blower can be turned on to discharge the gas at the feeding port and discharge port of the furnace body, which can effectively prevent the leakage of harmful gases. At the same time, with the support of the inclined plate, the flame will not burst out of the feeding port and discharge port of the furnace body, which greatly improves the safety of the boiler. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a boiler device for burning biomass raw materials according to an embodiment of the present utility model;

[0016] Figure 2 This is a cross-sectional view of the furnace body in an embodiment of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the bulk material handling mechanism in an embodiment of this utility model;

[0018] Figure 4 This is a cross-sectional view of the air dispersing mechanism in an embodiment of this utility model.

[0019] In the diagram: 1. Furnace body; 2. Water pipe; 3. Chimney; 4. Material dispersing mechanism; 401. No. 1 grate; 402. No. 2 grate; 403. Drive motor; 404. Connecting rod; 405. Buffer spring; 406. Irregular block; 5. Gas dispersing mechanism; 501. No. 1 air duct; 502. No. 2 air duct; 503. Pipe; 504. Fan; 505. Gas dispersing pipe; 506. Inclined plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] Combination Figures 1-4A boiler device for burning biomass raw materials includes a boiler body 1, a water pipe 2, and a chimney 3. A material distribution mechanism 4 is provided on the boiler body 1. The material distribution mechanism 4 includes a first grate 401 and a second grate 402 and a drive motor 403. The drive motor 403 is fixedly installed at the rear of the boiler body 1. A connecting rod 404 is fixedly installed between the first grate 401 and the second grate 402. Two buffer springs 405 are fixedly installed in parallel between the connecting rod 404 and the boiler body 1. A shaped block 406 is fixedly installed at the output end of the drive motor 403.

[0023] See Figure 3 Furthermore, it is found that the No. 1 grate 401 and the No. 2 grate 402 are slidably connected to the furnace body 1 by several crossbars, and the gap size on the No. 1 grate 401 is larger than the gap size on the No. 2 grate 402. The two ends of the irregular block 406 are respectively composed of two semicircles with different inner diameters, and the irregular block 406 is in close contact with the connecting rod 404.

[0024] Specifically, by controlling the drive motor 403 to rotate the irregularly shaped block 406, and benefiting from the shape of the irregularly shaped block 406 and its close connection with the connecting rod 404, the connecting rod 404 will reciprocate under the action of the irregularly shaped block 406 and the two buffer springs 405, thereby causing the first grate 401 and the second grate 402 to reciprocate within the furnace body 1. In use, biomass raw materials are put into the furnace body 1 through the feeding port and the drive motor 403 is turned on to make the first grate 401 and the second grate 402 reciprocate, thus achieving the effect of layered combustion and leveling of raw materials of different sizes.

[0025] Example 2

[0026] Combination Figure 1 , Figure 2 and Figure 4 The furnace body 1 is equipped with a gas dispersing mechanism 5, which includes a first air hopper 501 and a second air hopper 502. The first air hopper 501 and the second air hopper 502 are respectively fixedly installed at the feeding port and the discharge port of the furnace body 1. A conduit 503 is fixedly installed between the first air hopper 501 and the second air hopper 502. A blower 504 is fixedly installed at one end of the conduit 503. A gas dispersing pipe 505 is fixedly installed at the output end of the blower 504. Inclined plates 506 are fixedly installed inside the furnace body 1 and at the lower side of the first air hopper 501 and the second air hopper 502 respectively.

[0027] See Figure 4 Furthermore, based on Embodiment 1, it is further found that the lower sides of both No. 1 air hopper 501 and No. 2 air hopper 502 are provided with slots, and the upper part of No. 1 air hopper 501 and the lower part of No. 2 air hopper 502 are provided with slopes. The upper and lower parts of the furnace body 1 are provided with partitions, and the partitions are rotatably connected to the furnace body 1 by two support springs.

[0028] Specifically, by installing No. 2 air hopper 502 and No. 1 air hopper 501 inside the feeding port and discharge port of the furnace body 1 respectively, and connecting No. 2 air hopper 502 and No. 1 air hopper 501 to the blower 504 through the conduit 503, the gas at the feeding port and discharge port of the furnace body 1 can be discharged when feeding biomass raw materials and removing ash. During use, the inclined plate 506 installed inside the furnace body 1 is used to isolate the flame and ash deep inside the furnace body 1, preventing the flame and ash from escaping when feeding or removing ash. It also provides a safe distance between No. 2 air hopper 502 and No. 1 air hopper 501 and the flame, preventing the blower 504 from sucking in the flame and causing a safety accident.

[0029] In actual operation, the shaped block 406 is rotated by controlling the drive motor 403. Due to the shape of the shaped block 406 and its close connection with the connecting rod 404, the connecting rod 404 will move back and forth under the action of the shaped block 406 and the two buffer springs 405, thereby causing the first grate 401 and the second grate 402 to move back and forth in the furnace body 1. When in use, the biomass raw materials are put into the furnace body 1 through the feeding port and the drive motor 403 is turned on to make the first grate 401 and the second grate 402 move back and forth, so as to achieve the effect of layered combustion and leveling of raw materials of different sizes.

[0030] By installing No. 2 air hopper 502 and No. 1 air hopper 501 on the inner side of the feeding port and discharge port on the furnace body 1 respectively, and connecting No. 2 air hopper 502 and No. 1 air hopper 501 to the blower 504 through the conduit 503, the gas at the feeding port and discharge port on the furnace body 1 can be discharged when feeding biomass raw materials and removing ash. When in use, the function of installing the inclined plate 506 inside the furnace body 1 is to isolate the flame and ash deep in the furnace body 1, so as to prevent the flame and ash from escaping when feeding or removing ash. At the same time, it also provides a safe distance between No. 2 air hopper 502 and No. 1 air hopper 501 and the flame, so as to prevent the blower 504 from sucking in the flame and causing a safety accident.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A boiler plant for burning a biomass raw material, comprising a furnace (1), a water tube (2) and a chimney (3), characterized in that: The furnace body (1) is provided with a scattering mechanism (4); The scattering mechanism (4) comprises a first grate (401), a second grate (402) and a driving motor (403), the driving motor (403) is fixedly installed at the rear of the furnace body (1), the first grate (401) and the second grate (402) are fixedly installed with a connecting rod (404) therebetween, two buffer springs (405) are fixedly installed in parallel between the connecting rod (404) and the furnace body (1), and the output end of the driving motor (403) is fixedly installed with a special-shaped block (406).

2. A boiler apparatus for burning a biomass feedstock according to claim 1, characterised in that: The first grate (401) and the second grate (402) are slidingly connected with the furnace body (1) through a plurality of cross bars, and the gap size on the first grate (401) is greater than that on the second grate (402).

3. A boiler apparatus for burning biomass feedstock according to claim 1, characterized in that: The two ends of the special-shaped block (406) are respectively combined by two semicircles with different inner diameters, and the special-shaped block (406) is connected with the connecting rod (404) in close contact.

4. A boiler apparatus for burning a biomass feedstock according to claim 2, characterised in that: The furnace body (1) is provided with a gas scattering mechanism (5), the gas scattering mechanism (5) comprises a first air duct (501) and a second air duct (502), the first air duct (501) and the second air duct (502) are fixedly installed at the feeding port and the discharging port of the furnace body (1) respectively, a pipe (503) is fixedly installed between the first air duct (501) and the second air duct (502), one end of the pipe (503) is fixedly installed with a fan (504), the output end of the fan (504) is fixedly installed with a gas scattering pipe (505), and the inside of the furnace body (1) and the lower side of the first air duct (501) and the second air duct (502) are fixedly installed with inclined plates (506) respectively.

5. A boiler arrangement for burning a biomass feed material according to claim 4, characterized in that: The lower side of the first air duct (501) and the second air duct (502) is provided with a slot, and the upper part of the first air duct (501) and the lower part of the second air duct (502) are provided with slopes.

6. A boiler apparatus for burning a biomass feedstock according to claim 4, characterised in that: The upper part and the lower part of the furnace body (1) are provided with partitions, and the partitions are rotatably connected with the furnace body (1) through two supporting springs.

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