CN216868815U

CN216868815U - Biomass fuel clean combustion device

Info

Publication number: CN216868815U
Application number: CN202123423179.6U
Authority: CN
Inventors: 陈辉华; 谢超; 罗丽; 孙立凡
Original assignee: Hunan Nongyou Machinery Group Co ltd
Current assignee: Hunan Nongyou Machinery Group Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-07-01
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a biomass fuel clean combustion device. The combustion machine comprises a feeding device, a combustion-supporting fan, a combustion furnace basin and an electric igniter arranged on the combustion furnace basin, wherein a discharge port of the feeding device is communicated with a feed port of the combustion furnace basin, and an air outlet of the combustion-supporting fan is communicated with an air inlet of the combustion furnace basin; the combustion furnace basin extends into the hearth, and the hearth is communicated with the dust remover; the outer wall fixedly connected with a plurality of fin of dust remover, the dust remover still is provided with hot air outlet. The combustor of the utility model provides enough air volume for the biomass fuel, the hearth provides enough space for full combustion, and the fly ash volume is reduced.

Description

Biomass fuel clean combustion device

Technical Field

The utility model relates to the field of combustion devices, in particular to a biomass fuel clean combustion device.

Background

The biomass fuel is a clean fuel, the density of the biomass fuel is small, the structure is loose, the windward area is large, the proportion of suspension combustion is large, the fuel mechanism, the reaction speed and the fuel product components of the biomass fuel are greatly different from those of fossil fuel, the biomass fuel as the fuel has high volatile matter and low ignition point, and if the air quantity is insufficient, the chemical incomplete combustion loss can be increased. The existing biomass fuel combustion device has the disadvantages of low combustion efficiency, insufficient combustion and large fly ash amount, and is easy to coke on the pipe wall of a device utilizing hot air subsequently, because the existing biomass fuel combustion device is rich in potassium and sodium alkali metals with low ash melting points, has large viscosity of high-temperature fly ash, and is easy to coke after touching the furnace wall.

In view of the above, it is necessary to provide a clean combustion device for biomass fuel to solve the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a biomass fuel clean combustion device, and aims to solve the problems that the existing biomass fuel combustion device is insufficient in combustion, large in fly ash amount and easy to coke on the pipe wall of a device utilizing hot air subsequently. In order to achieve the purpose, the utility model provides a biomass fuel clean combustion device which comprises a combustor, a hearth and a dust remover, wherein the combustor comprises a feeding device, a combustion fan, a combustion furnace basin and an electric igniter arranged on the combustion furnace basin, a discharge hole of the feeding device is communicated with a feed hole of the combustion furnace basin, and an air outlet of the combustion fan is communicated with an air inlet of the combustion furnace basin; the combustion furnace basin extends into the hearth, and the hearth is communicated with the dust remover; the outer wall fixedly connected with a plurality of fin of dust remover, the dust remover still is provided with hot air outlet.

Preferably, the clean burner of biomass fuel still is provided with the shell, the combustor, furnace with the dust remover all set up in the shell, air intake and air outlet have been seted up on the shell.

Preferably, the dust remover adopts a cyclone dust remover, and the feeding device adopts a double-helix feeding device.

Preferably, a hopper is arranged at a feeding port of the feeding device, and the shell is concavely provided with a discharging port in a matching way with the hopper.

Preferably, a fly ash collection box for collecting fly ash is provided at the bottom of the dust collector.

Preferably, the shell is provided with an ash cleaning port matched with the combustion furnace basin, and the shell is also provided with an ash cleaning port matched with the fly ash collecting box.

Preferably, furnace includes first furnace and set up in the second furnace at first furnace top, first furnace is the cuboid structure, second furnace is the cylinder structure, first furnace with second furnace intercommunication.

Preferably, the combustion furnace basin is the cuboid structure, the combustion furnace basin stretches into first furnace, the combustion furnace basin with first furnace matched with sets up.

Preferably, a hot air channel communicated with the dust remover is arranged at the upper end of the second hearth.

Preferably, the electric heating igniter, the feeding hole of the combustion furnace basin and the air inlet of the combustion furnace basin are all arranged on the same side wall of the combustion furnace basin.

Compared with the prior art, the biomass fuel clean combustion device provided by the utility model has the following beneficial effects:

the utility model provides a biomass fuel clean combustion device which comprises a combustor, a hearth and a dust remover, wherein the combustor comprises a feeding device, a combustion fan, a combustion furnace basin and an electric igniter arranged on the combustion furnace basin, a discharge hole of the feeding device is communicated with a feed inlet of the combustion furnace basin, and an air outlet of the combustion fan is communicated with an air inlet of the combustion furnace basin; the combustion furnace basin extends into the hearth, and the hearth is communicated with the dust remover; the outer wall fixedly connected with a plurality of fin of dust remover, the dust remover still is provided with hot air outlet. The combustor of the utility model provides enough air volume for the biomass fuel, the hearth provides enough space for full combustion, and the fly ash volume is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic view of the internal structure of a biomass fuel clean combustion device according to an embodiment of the utility model;

fig. 2 is an overall structural view of a biomass fuel clean combustion apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of the internal structure of a clean biomass fuel combustion device from another perspective in one embodiment of the present invention;

FIG. 4 is a schematic view of a combustor in an embodiment of the present invention;

the reference numbers illustrate:

a biomass fuel clean-burning device 100;

a combustion engine 200; a feed device 210; a hopper 211; a combustion fan 220; a burner pan 230; a combustion tank 231; the first vent hole 232; a second vent hole 233; an electro-thermal igniter 240;

a hearth 300; a first furnace chamber 310; a second hearth 320; a hot air passage 330;

a dust remover 400; a heat sink 410; a hot air outlet 420; a fly ash collection box 430; a housing 500; an air inlet 510; an air outlet 520; a discharge port 530; and an ash removal opening 540.

The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a biomass fuel clean combustion apparatus 100, including a burner 200, a furnace 300 and a dust collector 400, where the burner 200 includes a feeding device 210, a combustion fan 220, a combustion basin 230 and an electric igniter 240 arranged on the combustion basin 230, a discharge port (not shown) of the feeding device 210 is communicated with a feed port (not shown) of the combustion basin 230, and an air outlet 520 of the combustion fan 220 is communicated with an air inlet 510 of the combustion basin 230; the combustion basin 230 extends into the hearth 300, and the hearth 300 is communicated with the dust remover 400; the outer wall of the dust collector 400 is fixedly connected with a plurality of cooling fins 410, and the dust collector 400 is further provided with a hot air outlet 420.

In detail, the combustion basin 230 extends into the furnace 300, the furnace 300 provides enough space for sufficient combustion, the size of the furnace 300 can be set according to the structure and actual needs of the combustion basin 230, the furnace 300 is communicated with the dust remover 400, so that hot air generated by combustion can be removed by the dust remover 400, a plurality of radiating fins 410 are fixedly connected to the outer wall of the dust remover 400, the structure and the number of the radiating fins 410 can be set according to the actual needs, the radiating fins 410 can be set to reduce the temperature of the dust remover 400, when the hot air with fly ash is removed by the dust remover 400, the temperature of the dust remover 400 is reduced to reduce the viscosity of the fly ash, the fly ash is not easy to coke on the tube wall of a subsequent device using the hot air, the subsequent device using the hot air can be a heat exchanger, the fly ash is not easy to coke on the tube wall of the heat exchanger, and the fly ash falls out of the ash outlet of the dust remover 400, the fly ash amount of the hot air entering the heat exchanger subsequently is reduced, so that the clean hot air flows out from the hot air outlet 420 for recycling, and the clean combustion of the biomass fuel is realized.

The combustion basin 230 comprises a basin body (not shown), a combustion groove 231 for burning the biomass fuel and a feeding hole (not shown) are formed on the basin body, and the feeding hole is communicated with the combustion groove 231; the cone body includes an outer shell (not shown) and an inner shell (not shown) directly surrounding the combustion bowl 231; wherein, be formed with ventilation cavity (drawing not sign) between lateral shell and the inner shell, set up the air intake 510 with ventilation cavity intercommunication on the lateral shell, a plurality of first ventilation holes 232 have been seted up to the bottom of inner shell, have seted up a plurality of second ventilation holes 233 on the lateral wall of inner shell, the air volume that first ventilation hole 232 formed is less than the air volume that second ventilation holes 233 formed. Specifically, be formed with combustion tank 231 on the basin body, combustion tank 231 is used for biomass fuel's burning, and combustion tank 231's shape and size can set up according to actual need, are provided with the feed inlet that communicates with combustion tank 231 on combustion tank 231, and the position and the size of feed inlet can set up according to actual need, and the feed inlet is used for biomass fuel's feeding.

In detail, the outside shell of stove basin body indicates the outermost casing of stove basin body, the inner shell indicates to encircle the casing that burning tank 231 formed, a biomass fuel burns, be formed with the ventilation cavity between outside shell and the inner shell, the shape and the size of ventilation cavity can be adjusted through the cooperation between adjustment outside shell and the inner shell, set up the air intake 510 with the ventilation cavity intercommunication on the outside shell, air intake 510 is used for connecting the combustion fan 220 that provides combustion air, a plurality of first ventilation holes 232 have been seted up to the bottom of inner shell, a plurality of second ventilation holes 233 have been seted up on the lateral wall of inner shell, second ventilation hole 233 can all be seted up on four lateral walls of inner shell, first ventilation hole 232 and second ventilation hole 233 all communicate with the ventilation cavity, the fan connected by the ventilation cavity carries out the air feed.

It should be understood that the first vent hole 232 forms a smaller amount of ventilation than the second vent hole 233, and this setting may be set by adjusting the number of holes or the diameter of holes between the first vent hole 232 and the second vent hole 233, because the ventilation volume formed by the first ventilation holes 232 is less than that formed by the second ventilation holes 233, the second ventilation holes 233 are higher than the first ventilation holes 232, and the wind blown by the second ventilation holes 233 exerts a pressing force on the biomass fuel blown upwards, the biomass fuel is not easily blown up during the combustion process, the flying ash amount is reduced, simultaneously under the effect of first ventilation hole 232 and second ventilation hole 233, can provide sufficient combustion-supporting gas for the burning of the biomass fuel that does not burn completely, make its burning more abundant, in addition, the fuel of suspension burning can directly burn in burning basin 230 upper end, can not direct discharge, has reduced biomass fuel's waste and atmospheric pollution.

Further, the wind direction formed by the first ventilation holes 232 is a vertical direction, and the wind direction formed by the second ventilation holes 233 is a horizontal direction. It should be understood that the wind direction can be set according to actual needs, in this embodiment, the combustion groove 231 is set to be a rectangular groove structure, the wind direction formed by the first ventilation holes 232 is a vertical direction, the wind direction formed by the second ventilation holes 233 is a horizontal direction, and the wind blown by the second ventilation holes 233 forms a transverse wind, so that the biomass fuel blown upwards is effectively blocked, the waste of the biomass fuel is reduced, and the amount of fly ash is also reduced.

As a preferred embodiment of the present invention, the number of the first ventilating holes 232 is smaller than the number of the second ventilating holes 233. It should be noted that the amount of air formed by the first vent holes 232 is less than the amount of air formed by the second vent holes 233, and this setting can be set by adjusting the number of holes between the first vent holes 232 and the second vent holes 233, and in this embodiment, the number of the first vent holes 232 is set to be less than the number of the second vent holes 233, so that the amount of air blown out by the second vent holes 233 is far greater than that of the first vent holes 232.

In a preferred embodiment of the present invention, the diameter of the first ventilating hole 232 is smaller than that of the second ventilating hole 233. It should be noted that the ventilation amount formed by the first ventilation hole 232 is smaller than the ventilation amount formed by the second ventilation hole 233, and this setting can be performed by adjusting the diameter of the hole between the first ventilation hole 232 and the second ventilation hole 233, and in this embodiment, the diameter of the first ventilation hole 232 is set to be smaller than the diameter of the second ventilation hole 233, so that the air volume blown out by the second ventilation hole 233 is far larger than that of the first ventilation hole 232.

As a preferred embodiment of the present invention, the first and

second ventilation holes

232 and 233 are arranged in an array. It should be understood that the positions of the first vent holes 232 and the second vent holes 233 can be set according to actual needs, and in this embodiment, the first vent holes and the second vent holes are arranged in an array, so that the blown wind energy is distributed more uniformly and is more beautiful and harmonious; an electrically heated igniter 240 is employed to achieve the auto-ignition function.

As a preferred embodiment of the present invention, the clean combustion apparatus 100 for biomass fuel further comprises a housing 500, the burner 200, the furnace 300 and the dust collector 400 are all disposed in the housing 500, and the housing 500 is provided with an air inlet 510 and an air outlet 520. Specifically, the clean burner device 100 of biomass fuel is further provided with a shell 500, the burner 200, the hopper 211, the furnace 300 and the dust remover 400 are all arranged in the shell 500, an air inlet 510 and an air outlet 520 are arranged on the shell 500, a hot air outlet 420 is communicated with the air outlet 520, when external cold air enters from the air inlet 510, the temperature of the radiating fins 410 on the dust remover 400 is high, the air can be heated, the cold air can be heated into hot air, the hot air and the hot air of the hot air outlet 420 of the dust remover 400 are discharged from the air outlet 520 to be recycled, the arrangement can utilize waste heat to a greater extent, and energy consumption is saved.

Further, the dust remover 400 adopts a cyclone dust remover 400, and the feeding device 210 adopts a double-helix feeding device. It should be understood that the types of the dust collector 400 and the feeding device 210 include various types, which can be selected according to actual situations, in this embodiment, the dust collector 400 adopts a cyclone dust collector 400, the feeding device 210 adopts a double-helix feeding device, no moving parts are arranged inside the cyclone dust collector 400, the maintenance is convenient, the volume is small, the structure is simple, the price is low, and the cyclone dust collector 400 in this embodiment adopts high temperature resistant materials, and can bear higher temperature; the double-helix feeding device is reliable in operation and convenient to maintain, can realize sealed conveying, and cannot be tempered.

In a preferred embodiment of the present invention, a hopper 211 is disposed at the feeding port of the feeding device 210, and a discharging port 530 is recessed in the housing 500 and is matched with the hopper 211. It should be understood that the housing 500 is configured not to interfere with the feeding of the feeding device 210, and preferably, in this embodiment, a hopper 211 is provided at the feeding port of the feeding device 210, the hopper 211 can facilitate the addition of the biomass fuel, and a discharge port 530 is recessed on the housing 500 in cooperation with the hopper 211, so that the biomass fuel can be directly added from the top of the housing 500 for convenient operation.

Further, a fly ash collection box 430 for collecting fly ash is provided at the bottom of the dust collector 400; the shell 500 is provided with an ash cleaning port 540 which is matched with the combustion furnace basin 230, and the shell 500 is also provided with an ash cleaning port 540 which is matched with the fly ash collecting box 430. It should be understood that a fly ash collecting box 430 for collecting fly ash is disposed at the bottom of the dust collector 400, and a corresponding ash cleaning port 540 is opened on the housing 500 to facilitate cleaning of ash generated by burning biomass fuel.

As a preferred embodiment of the present invention, the furnace 300 includes a first furnace 310 and a second furnace 320 disposed on top of the first furnace 310, the first furnace 310 has a rectangular parallelepiped structure, the second furnace 320 has a cylindrical structure, and the first furnace 310 is communicated with the second furnace 320. In detail, set up furnace 300 to include first furnace 310 and second furnace 320, first furnace 310 is the cuboid structure for cooperate with combustion basin 230, and second furnace 320 is the cylinder structure, sets up first furnace 310 and second furnace 320, is used for providing sufficient space for the biomass fuel burning, makes the burning of biomass more abundant in furnace 300, reduces the fly ash.

Further, the combustion furnace basin 230 is a cuboid structure, the combustion furnace basin 230 extends into the first furnace chamber 310, and the combustion furnace basin 230 is arranged in cooperation with the first furnace chamber 310. It is worth noting that the shape of the combustion basin 230 can be set according to actual needs, in this embodiment, the combustion basin 230 is of a cuboid structure, the combustion groove 231 in the middle of the combustion basin is of a rectangular groove structure, a channel for ash removal is formed in one side of the combustion groove 231, the channel for ash removal corresponds to the direction of the ash removal port 540, ash through cleaning biomass fuel is convenient, the combustion basin 230 extends into the first hearth 310 and is matched with the first hearth 310, and therefore the biomass fuel can be well and fully combusted in the hearth 300.

In a preferred embodiment of the present invention, the upper end of the second hearth 320 is provided with a hot air duct 330 which communicates with the dust collector 400. It should be understood that the second furnace 320 is communicated with the dust remover 400, and the specific communication structure thereof can be set according to the actual situation, in this embodiment, the hot air channel 330 is arranged at the upper end of the second furnace 320 to be communicated with the dust remover 400, so that the hot air generated by the combustion of the biomass fuel can pass through the hot air channel 330.

In a preferred embodiment of the present invention, the electric igniter 240, the feeding hole of the combustion basin 230 and the air inlet 510 of the combustion basin 230 are all disposed on the same side wall of the combustion basin 230. Specifically, the positions of the feeding port and the air inlet 510 may be set according to actual needs, and preferably, in this embodiment, the feeding port and the air inlet 510 are disposed on the same side, the feeding port is disposed in the middle of the sidewall, and the air inlet 510 is disposed beside the feeding port, which facilitates the connection between the combustion furnace basin 230 and external components and the ash removal operation of the combustion furnace basin 230.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A biomass fuel clean combustion device comprises a combustor, a hearth and a dust remover, and is characterized in that the combustor comprises a feeding device, a combustion fan, a combustion furnace basin and an electric igniter arranged on the combustion furnace basin, wherein a discharge hole of the feeding device is communicated with a feed hole of the combustion furnace basin, and an air outlet of the combustion fan is communicated with an air inlet of the combustion furnace basin;

the combustion furnace basin extends into the hearth, and the hearth is communicated with the dust remover;

the outer wall fixedly connected with a plurality of fin of dust remover, the dust remover still is provided with hot air outlet.

2. The clean combustion device of biomass fuel as claimed in claim 1, further comprising a housing, wherein the burner, the furnace and the dust remover are all disposed in the housing, and the housing is provided with an air inlet and an air outlet.

3. The biomass fuel clean combustion device according to claim 1, characterized in that the dust remover adopts a cyclone dust remover, and the feeding device adopts a double-helix feeding device.

4. The biomass fuel clean combustion device according to claim 2, characterized in that a hopper is arranged at the feeding port of the feeding device, and a discharging port is concavely arranged on the shell and the hopper in a matching manner.

5. The clean biomass fuel combustion device as claimed in claim 2, wherein the bottom of the dust collector is provided with a fly ash collection box for collecting fly ash.

6. The clean biomass fuel combustion device according to claim 5, wherein the housing is provided with an ash cleaning port matched with the combustion furnace basin, and the housing is further provided with an ash cleaning port matched with the fly ash collecting box.

7. The biomass fuel clean combustion device according to claim 1, characterized in that the furnace comprises a first furnace and a second furnace arranged on top of the first furnace, the first furnace is of a cuboid structure, the second furnace is of a cylindrical structure, and the first furnace is communicated with the second furnace.

8. The biomass fuel clean combustion device of claim 7, wherein the combustion basin is of a cuboid structure, the combustion basin extends into the first hearth, and the combustion basin and the first hearth are matched.

9. The biomass fuel clean combustion device according to claim 7, characterized in that the upper end of the second furnace is provided with a hot air channel communicated with the dust remover.

10. The biomass fuel clean combustion device of claim 1, wherein the electric igniter, the feed inlet of the combustion basin and the air inlet of the combustion basin are all disposed on the same side wall of the combustion basin.