CN202182481U - Special bin of biomass particle combustor - Google Patents

Abstract

The utility model discloses a special feed bin for a biomass particle burner, which belongs to the technical field of renewable energy. The technical solution includes a bin body (1), an automatic feeding mechanism (2), and a biomass particle burner (4), and is characterized in that the lower end of the automatic feeding mechanism (2) is inserted into the guide cylinder (11) in the bin body , the upper end is connected to the biomass pellet burner (4) through the connecting hose (3), the automatic feeding mechanism is fixed on the bottom of the long inclined plate (15) through the connecting angle plate (19), and the biomass pellet burner (4) It is fixed on the burner support plate (6) through the fixing screw hole (18) and installed on the lower part of the bin body (1). The special hopper for the biomass particle burner of the utility model integrates the storage, transportation and combustion of fuel, is convenient to move, has adjustable height and compact structure, and can be conveniently applied to combustion equipment such as biomass particle fuel boilers and hot blast stoves.

Description

A special silo for a biomass pellet burner

technical field

The utility model belongs to the technical field of renewable energy, and is a special feed bin for a biomass particle burner, which integrates fuel storage, transportation and combustion, and can be conveniently applied to biomass particle fuel boilers, hot blast stoves and other combustion equipment. the

Background technique

Biomass solid briquettes refer to crop straws and forestry residues that are dried and crushed under certain temperature and pressure, and then extruded into solid fuels with a certain shape and high density. Biomass solid briquettes include block fuels and granular fuels. Particulate fuel is generally cylindrical, with a diameter generally not greater than 25mm and a length not greater than 4 times its diameter. Biomass pellet fuel has high energy density and high combustion efficiency, especially through the use of burners, it can realize automatic feeding, automatic ignition, combustion, etc., and it is easy to realize automatic control. At present, a variety of biomass pellet burners have been developed abroad. According to the feeding method, they can be divided into three types: upper feeding type, bottom feeding type, and horizontal feeding type. the

At present, the silo and feeding mechanism of the top-feed biomass pellet burner are mostly separated, which leads to a large space occupied by the entire biomass pellet burner-based combustion system and a long feeding distance. And the feeding mechanism needs an additional suspension device when installed, and the available suspension device must be found before it can be used, so it has limitations in use. The biomass pellet burner is independent from the silo and feeding mechanism, and it is inconvenient to take and place. At present, there are other integrated silos, but the effective volume of the silo is too small, that is, too little of the biomass pellet fuel stored in the silo can be transported to the burner by the automatic feeding mechanism for combustion, resulting in the utilization of the silo. The rate is not high. the

Contents of the invention

The purpose of the present invention is to integrate the storage, transportation and combustion of biomass pellet fuel, so that the combustion system including storage and transportation of biomass pellet fuel has a compact structure, is easy to move, and can be conveniently applied to biomass pellet fuel boilers, hot air Furnaces and other combustion equipment. the

The technical solution adopted to achieve this goal includes a bin body, an automatic feeding mechanism, and a biomass pellet burner. The material particle burner is connected, and the automatic feeding mechanism and the biomass particle burner are all installed in the lower part of the bin body. the

In the above-mentioned silo dedicated to biomass pellet burners, the automatic feeding mechanism is installed on the long sloping plate through the connecting angle plate, and the lower end is inserted into the guide cylinder connected to the long sloping plate, achieving the integration of the feeding mechanism and the silo purpose in one. the

In the special silo for the above-mentioned biomass pellet burner, the feeding cylinder in the automatic feeding mechanism has a built-in feeding screw and an external feeding motor, and the feeding motor drives the feeding screw to rotate to achieve the purpose of feeding. the

In the special silo for the biomass pellet burner mentioned above, a burner support plate is installed at the bottom of the silo body, and its function is to fix the biomass pellet burner so that the biomass pellet burner and the silo body are integrated. the

In the special silo for the above-mentioned biomass pellet burner, the fuel storage space of the silo is surrounded by the silo body, the long sloping plate, and the short sloping plate. Among them, the angles formed by the long inclined plate, the short inclined plate and the horizontal plane are α and β respectively, and in order to ensure that the biomass pellet fuel can slide freely to the bottom of the bin, the angle must be greater than or equal to the external friction angle of the biomass pellet fuel. At the same time, in order to ensure that the automatic feeding mechanism can easily load the material, the angle α should not be too large, otherwise it will cause difficulty or failure to load the material. At present, the most used biomass pellet fuels are wood pellets, corn stalk pellets, cotton stalk pellets, and wheat straw pellets, and their external friction angles are 30°, 35°, 38°, and 45°, respectively. Therefore, it is determined that α and β are both 45°. the

In the special feed bin for the biomass pellet burner mentioned above, there is a material level observation window in the middle of the right wall of the bin body in the horizontal direction. The material level observation window is a rectangle with a width of 15mm, the lower end reaches the connection between the short inclined plate and the box body, and the upper end is 50mm below the top of the box body. Its viewing window is realized by a transparent plastic plate pasted on the inner wall of the silo. Through the material level observation window, the storage of biomass pellet fuel in the silo can be observed in time, so as to determine whether to add pellet fuel. the

In the special silo for the above-mentioned biomass pellet burner, there are symmetrical height adjustment holes on the side wall of the silo body, and the height adjustment range is 0-15mm. Its function is to fix the burner support plate and realize the fine adjustment of the height of the burner support plate. the

In the special silo for the above-mentioned biomass pellet burner, height adjustment bolts are installed at the bottom of the silo body. The height adjustment bolt can meet the installation height requirements of the modified fuel oil and gas boilers for the burner, and the height adjustment range is 0-100mm. When the adjusted height is large, use the height adjustment bolt to adjust, otherwise use the height adjustment hole to adjust. the

In the special silo for the above-mentioned biomass pellet burner, self-locking universal wheels are installed at the bottom of the silo body. Self-locking universal wheels are connected with height adjustment bolts and installed on the warehouse body. Its function is to realize the easy movement of the silo, and after the silo is moved to a suitable position, use the self-locking device to fix the wheels, so as to ensure that the entire silo cannot be moved. the

In the special feed bin for the above-mentioned biomass pellet burner, a guide cylinder is installed at the bottom of the long inclined plate. Its function is to ensure that the automatic feeding mechanism can be installed along the angle of the long inclined plate, so that the automatic feeding mechanism and the warehouse body are integrated into one. the

A special silo for biomass pellet burners with the above structural features has the following advantages:

1) The present invention integrates the storage, transportation and combustion of biomass pellet fuel, making the whole system compact. The long inclined plate and guide cylinder designed in the present invention are used to install and fix the feeding cylinder, and the burner support plate designed in the present invention is used to install the biomass particle burner, thereby realizing the automatic feeding mechanism, burner, and bin body Integration greatly reduces the installation space. the

2) The present invention improves the utilization rate of the feed bin, and the utilization rate can almost reach 100%. In the present invention, the long slant plate, the short slant plate and the bin body enclose the storage space for the biomass particle fuel, and the storage space forms a cuboid constriction at the bottom. Due to the reasonable selection of the angles of the inclined plates, all the biomass pellet fuel in the silo can flow to the constriction, thereby ensuring that all the biomass pellet fuel in the silo can be automatically transported to the burner for combustion. the

3) The present invention has a wide application range and can be used for boilers with different installation requirements. In the present invention, height adjustment bolts and height adjustment holes are designed, which can adjust the height of the burner, so as to meet boilers with different installation requirements. Among them, the height adjustment bolt is used for large-scale adjustment, and the adjustment range is 0-100mm. The height adjustment hole is used for height fine adjustment, and the adjustment range is 0-15mm. the

4) The present invention can realize easy movement and save manpower. In the present invention, a self-locking universal wheel is installed, which can easily move the position of the feed bin. After moving to a suitable position, the universal wheel is fixed with a self-locking device, so that the feed bin cannot move. the

Description of drawings

Figure 1 is a front view of a dedicated silo for biomass pellet burners

Figure 2 is a top view of a dedicated silo for biomass pellet burners

Figure 3 is a left view of a dedicated silo for biomass pellet burners

Figure 4 is a cross-sectional view of an automatic feeding mechanism for a dedicated silo for biomass pellet burners

Detailed ways

Embodiments of the present invention are described below in conjunction with accompanying drawings:

As shown in Figure 1, Figure 2, Figure 3, and Figure 4: 1 is the warehouse body, 2 is the automatic feeding mechanism, 3 is the connecting hose, 4 is the biomass pellet burner, 5 is the air inlet, and 6 is the combustion 7 is the height adjustment bolt, 8 is the self-locking universal wheel, 9 is the height adjustment hole, 10 is the wiring hole, 11 is the guide cylinder, 12 is the discharge baffle, 13 is the short slant plate, 14 is the feed port of the automatic feeding mechanism, 15 is the long inclined plate, 16 is the connecting angle plate, 17 is the material level observation window, 18 is the fixed screw hole, 19 is the blanking hole, 20 is the short inclined plate, 21 is the short Inclined plate, 22 is a feeding motor, 23 is a feeding screw, and 24 is a feeding cylinder. the

The bin body 1, the short slant plate 13, the short slant plate 20, the short slant plate 21, and the long slant plate 15 enclose a storage space for biomass particle fuel, and a discharge baffle 12 is installed at the bottom of the space. When the fuel needs to be replaced, the discharge baffle 12 is opened, and the biomass particle fuel will all flow out from the bottom. Install the guide tube 11 at the bottom of the long slant plate, the automatic feeding mechanism 2 is inserted in the guide tube 11, and is fixed on the long slant plate 15 by connecting the corner plate 16, while ensuring that the automatic feeding mechanism feed port 14 and blanking Holes 19 are opposite. The connecting hose 3 of the automatic feeding mechanism 2 is connected with the feed pipe of the biomass pellet burner 4 . During work, the biomass particle fuel enters the automatic feeding mechanism 2 through the automatic feeding mechanism feed port 14, and then the feeding motor 22 drives the feeding screw 23 in the feeding barrel 24 to rotate to transport it to the automatic feeding mechanism 2 and then enter the biomass pellet burner through the connecting hose 3. the

The material level observation window 17 is located on the right wall of the bin body 1, and the material level of the biomass particle fuel in the bin can be observed in time through the material level observation window 17. When the position of the biomass particle fuel is below the lower end of the observation window 17, Need to add biomass pellet fuel. the

The biomass particle burner 4 is fixed on the burner support plate 6 through the fixing screw hole 18, and the height of the biomass particle burner 4 can be adjusted through the height adjustment hole 9. The air intake hole 5 provides combustion air for the biomass pellet burner 4 , and the wiring hole 10 is used for passing the power line and control line of the biomass pellet burner 4 . the

The height adjustment bolt 7 is connected with the self-locking universal wheel 8, and is fixed on the bottom of the feed bin. By rotating the height adjustment bolt 7, the height of the biomass pellet burner 4 can be adjusted. The movement and fixation of the feed bin can be realized by self-locking universal wheels 8 . the

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be Modifications or equivalent replacements without departing from the spirit and scope of the technical solutions of the present invention shall be covered by the claims of the present invention. the

Claims (10)

1. A special feed bin for biomass pellet burners, comprising a bin body (1), an automatic feeding mechanism (2), and a biomass pellet burner (4), characterized in that the lower end of the automatic feeding mechanism (2) Insert into the guide cylinder (11) in the bin body (1), the upper end is connected with the biomass pellet burner (4) through the connecting hose (3), the automatic feeding mechanism (2) and the biomass pellet burner (4) All are installed in the bottom of storehouse body (1). 2. A special silo for biomass pellet burners according to claim 1, characterized in that the automatic feeding mechanism (2) is installed on the long inclined plate (15) through the connecting angle plate (16), and the lower end is inserted into the In the guide cylinder (11) that long inclined plate (15) is connected. 3. A special hopper for biomass pellet burners according to claim 1 or 2, characterized in that the feeding cylinder (24) in the automatic feeding mechanism (2) has a built-in feeding screw (23), and an external upper material motor (22). 4. A special silo for biomass pellet burners according to claim 1, characterized in that the burner (4) is fixed on the burner support plate (6) through the fixing screw hole (18) and installed in the silo body The lower part of (1). 5. A special silo for biomass pellet burners according to claim 1, characterized in that the silo body (1), the long inclined plate (15), the short inclined plate (13), the short inclined plate (20), The short slant plate (21) encloses the biomass particle fuel storage space, wherein the angle between the long slant plate (15) and the short slant plate (13) and the horizontal plane is α, and the short slant plate (20) and the short slant plate (21) The angle formed with the horizontal plane is β, and both are 45°. 6. A special silo for biomass pellet burners according to claim 1, characterized in that there is a material level observation window (17) at the middle of the right wall of the silo body (1) in the horizontal direction, and the material level observation window (17 ) is a rectangle with a width of 15mm, the lower end reaches the junction of the short inclined plate (13) and the casing (1), and the upper end is 50mm below the top of the casing (1). 7. A special silo for biomass pellet burners according to claim 1, characterized in that there are height adjustment holes (9) symmetrically on the side wall of the silo body (1) for the vertical adjustment of the burner. Position fine-tuning, fine-tuning range is 0-15mm. 8. A special silo for biomass pellet burners according to claim 1, characterized in that height adjustment bolts (7) are installed at the bottom of the silo body (1), and the adjusted height range is 0-100mm. 9. A special silo for biomass pellet burners according to claim 1, characterized in that a self-locking universal wheel (8) is installed at the bottom of the silo body (1). 10. A dedicated silo for biomass pellet burners according to claim 1, characterized in that a guide cylinder (11) is installed at the bottom of the long sloping plate (1). the

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