Combustion furnace with auxiliary exhaust of waste

Abstract

This utility model discloses a combustion furnace with auxiliary discharge of combustion waste, relating to the field of biomass combustion furnace technology. It includes a combustion furnace body, a grate, and a discharge pipe. An ash collection base is screwed onto the lower part of the combustion furnace body. A grate is installed in the middle of the inner side of the ash collection base. An output shaft is installed on the right side of the ash collection base, and a geared motor is installed on the right side of the output shaft. The combustion furnace provided by this utility model is an improvement on existing combustion furnaces. The grate is movable and rotating, which allows for more uniform and complete combustion of materials, faster ash discharge, and a lower furnace temperature. Fuel enters the furnace and undergoes high-temperature pyrolysis and combustion, producing high-temperature combustible gas. Additionally, a secondary combustion-supporting air can be added at the gas outlet to achieve complete combustion. Slag is collected and falls into an ash pit, where it is automatically discharged to a cleaning vehicle via the discharge pipe, saving labor.

Description

Technical Field

[0001] This utility model relates to the field of biomass combustion furnace technology, specifically a combustion furnace that assists in the discharge of combustion waste. Background Technology

[0002] The working principle of the combustion furnace is as follows: biomass pellet fuel enters the high-temperature pyrolysis semi-gasification combustion chamber via an automatic feeding system. The gasifying agent is supplied from the bottom of the furnace, and a high-temperature pyrolysis reaction occurs rapidly in the combustion chamber to produce high-temperature fuel gas. This process generates sensible heat and intermediate products such as H2, CH4, CnHm, and CO, which are directly injected into the oxygen-rich high-temperature combustion chamber through the fuel gas nozzle and burned, releasing latent heat.

[0003] However, in existing combustion furnaces, the biomass pellets burn unevenly and insufficiently during combustion. Furthermore, after the material has finished burning, workers need to manually remove the impurities inside, which would increase work efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a combustion furnace with auxiliary discharge of combustion waste, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A combustion furnace for auxiliary discharge of combustion waste includes a combustion furnace body, a grate, and a discharge pipe. An ash collection base is screwed onto the lower part of the combustion furnace body. A grate is installed in the middle of the inner side of the ash collection base. An output shaft is installed on the right side of the ash collection base, and a geared motor is installed on the right side of the output shaft. Several rollers are installed on the inner wall of the ash collection base. A discharge pipe is installed at the bottom of the ash collection base, and a spiral auger is installed inside the discharge pipe. A drive motor is installed on the upper right side of the discharge pipe. A furnace door is installed on the left side of the ash collection base, an air outlet is installed on the right side of the ash collection base, and an air inlet is provided on one side of the ash collection base.

[0007] Furthermore, a groove for air circulation is provided on the side of the grate, and an ash pan is welded below the grate, the diameter of which is smaller than the diameter of the ash collection base.

[0008] Furthermore, a toothed disc is fixedly connected to the lower outer wall of the ash disk, and a gear is meshed with the lower outer wall of the ash disk.

[0009] Furthermore, the ash collection base has a conical structure design, and a furnace cover is installed at the upper center of the ash collection base.

[0010] Furthermore, a feeding port is installed above the furnace cover.

[0011] Furthermore, a base is fixedly connected to the outer wall of the right side of the ash collection base.

[0012] Furthermore, three support frames are installed on the outside of the ash collection base.

[0013] Furthermore, the air inlet extends to the middle of the grate.

[0014] Furthermore, the grate is welded together from three identical discs, with the two lower grates and the ash pan having a hollow structure design.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] The combustion furnace provided by this utility model is an improvement on the existing combustion furnace. The grate of the combustion furnace is movable and rotating, which can achieve more uniform and complete combustion of materials, faster ash removal, and lower furnace temperature. The fuel enters the furnace and is pyrolyzed and burned at high temperature in the furnace, so that the fuel produces high-temperature combustible gas. In addition, a secondary combustion air can be added at the gas outlet to achieve complete combustion. The slag is collected and falls into the ash pool and is discharged to the ash removal car by the automatic slag removal mechanism of the discharge pipe, saving labor. Attached Figure Description

[0017] Figure 1 is a schematic cross-sectional view of a combustion furnace for auxiliary discharge of combustion waste according to this invention;

[0018] Figure 2 is an enlarged structural diagram of point A in Figure 1;

[0019] Figure 3 is a partial three-dimensional structural diagram of a combustion furnace for auxiliary discharge of combustion waste according to this invention;

[0020] Figure 4 is a partial front view of a combustion furnace for auxiliary discharge of combustion waste according to this invention.

[0021] In the picture:

[0022] 1. Support frame; 2. Air inlet; 3. Ash collection base; 4. Support roller; 5. Ash pan; 6. Furnace grate; 7. Furnace door; 8. Combustion furnace body; 9. Furnace cover; 10. Feeding port; 11. Air outlet; 12. Discharge pipe; 13. Output shaft; 14. Base; 15. Gear; 16. Gear disc; 17. Drive motor. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] As shown in Figures 1-4, this utility model provides a combustion furnace for auxiliary discharge of combustion waste. The combustion furnace specifically includes a combustion furnace body 8, a grate 6, and a discharge pipe 12. An ash collection base 3 is installed below the combustion furnace body 8 by screws. The grate 6 is installed in the middle of the inner side of the ash collection base 3. An output shaft 13 is installed on the right side of the ash collection base 3. The output shaft 13 is used to connect the motor unit and the gear 15. A geared motor unit is installed on the right side of the output shaft 13. Several rollers 4 are installed on the inner wall of the ash collection base 3. The rollers 4 are rotatable wheels. The discharge pipe 12 is installed at the bottom of the ash collection base 3. A spiral auger is installed inside the discharge pipe 12. A drive motor 17 is installed on the upper right side of the discharge pipe 12. A furnace door 7 is installed on the left side of the ash collection base 3. An air outlet 11 is installed on the right side of the ash collection base 3. An air inlet 2 is provided on one side of the ash collection base 3.

[0025] The specific implementation is as follows:

[0026] Material falls onto the grate 6 or ash pan 5, and then the reduction motor of the output shaft 13 is started, and the grate 6 begins to rotate. The grate 6 rotates in the middle of the ash collection base 3 with the support of the support roller 4. The grate 6 of the combustion furnace is movable and rotating, which can achieve more uniform and complete combustion of materials, faster ash discharge, and lower furnace temperature. Fuel enters the furnace and is pyrolyzed and burned at high temperature in the furnace, so that the fuel produces high-temperature combustible gas. In addition, secondary combustion air can be added to the gas outlet 11 to achieve complete combustion. The slag falls into the ash pool and is discharged to the ash cleaning car by the automatic slag discharge mechanism of the discharge pipe 12, saving labor.

[0027] In one embodiment, a groove for air circulation is provided on the side of the grate 6, and an ash pan 5 is welded below the grate 6. The diameter of the ash pan 5 is smaller than the diameter of the ash collection base 3. The impurities after combustion will enter the ash collection base 3 through the gap between the ash pan 5 and the ash collection base 3.

[0028] In one embodiment, a toothed disk 16 is fixedly connected to the lower outer wall of the ash disk 5. A gear 15 is meshed with the lower outer wall of the toothed disk 5. The gear 16 is preferably a bevel gear. The bevel gear causes the toothed disk 16 to start rotating.

[0029] As one implementation method, the ash collection base 3 has a conical structure design, which allows for better collection of waste. A furnace cover 9 is installed in the middle of the upper part of the ash collection base 3, and the furnace cover 9 is used for top sealing.

[0030] In one implementation, a feeding port 10 is installed above the furnace cover 9, and subsequent materials are continuously fed in through the feeding port 10 by a conveyor.

[0031] In one embodiment, a base 14 is fixedly connected to the outer right side of the dust collection base 3. The base 14 can be used for the installation of the geared motor unit.

[0032] In one embodiment, three support frames 1 are installed on the outside of the ash collection base 3, and the support frames 1 can be used to support the ash collection base 3.

[0033] In one embodiment, the air inlet 2 extends to the middle of the grate 6. After air enters through the air inlet 2, it is conveyed upwards by the grate 6.

[0034] In one implementation, the grate 6 is made of three identical disks welded together. The two lower grate 6 and ash disk 5 are both hollow in design, which ensures the airflow during operation.

[0035] In addition, this type of combustion furnace can burn a variety of solid fuels such as biomass pellets, wood chips, straw briquettes, bark, and garbage.

[0036] Working principle:

[0037] When using this combustion furnace with auxiliary waste discharge, the furnace door 7 is first opened to ignite the initial material. The material then travels via conveyor belt to the feeding port 10 of the furnace cover 9 and enters the interior of the combustion furnace body 8. The material then falls onto the grate 6 or ash pan 5. Next, the reduction motor of the output shaft 13 is started, and the output shaft 13, through the gear 15, causes the gear plate 16 to start rotating. The ash pan 5 and the grate 6 above the gear plate 16 rotate in the middle of the ash collection base 3 with the support of the roller 4. As the grate 6 rotates, the material can be burned more evenly and completely, and the ash can be discharged quickly. Air enters through the air inlet 2 and is transported to the air outlet 11 through the grate 6. Finally, the ash falls along the edge of the rotating grate 6 into the ash collection base 3. The drive motor 17 is started to rotate the auger inside the discharge pipe 12 to discharge impurities.

[0038] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A combustion furnace with auxiliary discharge of waste, comprising a combustion furnace body (8), a grate (6) and a discharge pipe (12), characterized in that, The combustion furnace body (8) is fitted with an ash collection base (3) by screws. A grate (6) is installed in the middle of the inner side of the ash collection base (3). An output shaft (13) is installed on the right side of the ash collection base (3). A geared motor is installed on the right side of the output shaft (13). Several rollers (4) are installed on the inner wall of the ash collection base (3). A discharge pipe (12) is installed at the bottom of the ash collection base (3). A spiral auger is installed inside the discharge pipe (12). A drive motor (17) is installed on the upper right side of the discharge pipe (12). A furnace door (7) is installed on the left side of the ash collection base (3). An air outlet (11) is installed on the right side of the ash collection base (3). An air inlet (2) is provided on one side of the ash collection base (3).

2. The combustion furnace according to claim 1, wherein The grate (6) has a groove for air circulation on its side, and an ash pan (5) is welded below the grate (6). The diameter of the ash pan (5) is smaller than the diameter of the ash collection base (3).

3. A combustion furnace according to claim 2, wherein A toothed disc (16) is fixedly connected to the lower outer wall of the gray disk (5), and a gear (15) is meshed with the lower part of the toothed disc (16).

4. The combustion furnace according to claim 1, wherein The ash collection base (3) has a conical structure design, and a furnace cover (9) is installed in the middle of the upper part of the ash collection base (3).

5. The combustion furnace according to claim 4, wherein A feeding port (10) is installed above the furnace cover (9).

6. A combustion furnace for auxiliary discharge of combustion waste according to claim 1, characterized in that, The ash collection base (3) is fixed to the outer wall of the right side of the base (14).

7. A combustion furnace for auxiliary discharge of combustion waste according to claim 1, characterized in that, The dust collection base (3) has three support frames (1) installed on its outer side.

8. A combustion furnace for auxiliary discharge of combustion waste according to claim 1, characterized in that, The air inlet (2) extends to the middle of the grate (6).

9. A combustion furnace for auxiliary discharge of combustion waste according to claim 2, characterized in that, The grate (6) is made of three identical disks welded together. The two lower grates (6) and the ash disk (5) are both hollow structures.

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