A biomass particle combustion device

Abstract

The utility model relates to a biomass particle combustion device, which belongs to the field of biomass particle combustion technology. It includes a furnace and a bellows, wherein the furnace is located above the bellows, and the inner wall of the upper end of the bellows is connected to a plurality of bottom air ducts, and the bottom air ducts are evenly arranged on the inner wall of the bellows, and a blower is connected to one side of the bellows, and an L-shaped auger is connected to one side of the furnace, and a vortex fan is connected to the bend of the auger, and a feed hopper is connected to the upper end of the auger. This patent has low cost, is easy to manufacture on a large scale, saves fuel, and the evenly arranged bottom air ducts can fully mix the fuel and air, which is energy-saving and environmentally friendly. The vortex fan makes the particle distribution uniform and avoids blockage.

Description

Technical Field

[0001] The utility model relates to a biomass particle combustion device, belonging to the technical field of biomass particle combustion. Background Art

[0002] Biomass pellet combustion is a technology that utilizes biomass energy, which involves processing biomass raw materials (such as wood, crop residues, herbaceous plants, etc.) into pellets and then using them as fuel in combustion equipment.

[0003] The existing biomass particle combustion device is difficult to evenly distribute the particles in the furnace after feeding, and cannot ensure the full combustion of the biomass particles. Utility Model Content

[0004] The technical problem to be solved by the utility model is that it is difficult to evenly distribute the particles in the furnace after the existing biomass particle combustion device is fed, and sufficient combustion of the biomass particles cannot be guaranteed.

[0005] In order to solve the above problems, the utility model provides a biomass particle combustion device, including a furnace and a bellows, the furnace is located above the bellows, the upper inner wall of the bellows is connected to a plurality of bottom air ducts, the bottom air ducts are evenly arranged on the inner wall of the bellows, one side of the bellows is connected to a blower, one side of the furnace is connected to an L-shaped auger, the bend of the auger is connected to a vortex blower, and the upper end of the auger is connected to a feed hopper.

[0006] Furthermore: the lengths of the bottom air duct inside and outside the wind box are equal.

[0007] Further: the diameter range of the bottom air duct is DN15-DN32.

[0008] Furthermore: the furnace adopts PID technology to control the temperature.

[0009] Compared with the prior art, the utility model has the following advantages:

[0010] This patent has low cost, is easy to manufacture on a large scale, saves fuel, and the evenly arranged bottom air ducts can fully mix the fuel and air, which is energy-saving and environmentally friendly. The vortex fan makes the particle distribution even and avoids blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0012] Figure 1 This is a structural diagram of a biomass particle combustion device of the utility model.

[0013] Figure 2 This is an explosion diagram of a biomass particle combustion device of the utility model.

[0014] Figure 3 This is a cross-sectional view of a wind box for a biomass particle combustion device of the utility model.

[0015] In the attached figure:

[0016] 1. Furnace; 11. Auger; 12. Vortex fan; 13. Feed hopper; 2. Bellows; 21. Bottom air duct; 22. Blower. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Embodiment 1

[0019] In conjunction with the accompanying drawings, a biomass particle combustion device includes a furnace 1 and a wind box 2. The furnace 1 is located above the wind box 2. The inner wall of the upper end of the wind box 2 is connected to a plurality of bottom air ducts 21. The bottom air ducts 21 are evenly arranged on the inner wall of the wind box 2. A blower 22 is connected to one side of the wind box 2. An L-shaped auger 11 is connected to one side of the furnace 1. A vortex fan 12 is connected to the bend of the auger 11. A feed hopper 13 is connected to the upper end of the auger 11. When in use, biomass particles are put into the device through the hopper. The high-pressure vortex fan 12 on one side of the auger 11 supplies air. The high pressure and small air volume increase the pressure of the blowing air and reduce the air intake. The vortex fan 12 adopts d n32 pipeline, dn15 pipeline is used for air outlet, so that the pressure is stabilized at 5kpa, which avoids the situation that the blowing fan has a small air volume and causes blockage, and also avoids the situation that the air volume is too large and takes away too much heat, resulting in energy saving. Multiple bottom air ducts 21 are used for bottom air supply, which ensures that the pressure in all directions in the furnace 1 is uniform, so that the fuel burns more fully. The length of the bottom air duct 21 located inside and outside the wind box 2 is equal, and the diameter range of the bottom air duct 21 is dn15-dn32, which effectively controls the air volume and makes the pressure in all directions in the furnace 1 consistent. The furnace 1 adopts PID technology for temperature control, with high temperature control accuracy and an error within 1 degree Celsius.

[0020] The working principle of this application is:

[0021] When in use, biomass particles are put into the device through the hopper, and the high-pressure vortex fan 12 on one side of the auger 11 supplies air. The high pressure and small air volume increase the pressure of the blowing air, reduce the air intake, avoid blockage or energy-saving due to the air volume, and use multiple bottom air ducts 21 to supply bottom air. The bottom air ducts 21 are of equal length inside and outside the wind box 2, which ensures uniform pressure in all directions in the furnace 1, makes the fuel burn more fully, and uses PID technology to control temperature to ensure the accuracy of temperature control.

[0022] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A biomass particle combustion device, comprising a furnace (1) and a wind box (2), characterized in that: The furnace (1) is located above the wind box (2); the upper inner wall of the wind box (2) is connected to a plurality of bottom air ducts (21); the bottom air ducts (21) are evenly arranged on the inner wall of the wind box (2); one side of the wind box (2) is connected to a blower (22); one side of the furnace (1) is connected to an L-shaped auger (11); the auger (11) is connected to a vortex fan (12) at its bend; and the upper end of the auger (11) is connected to a feed hopper (13).

2. A biomass particle combustion device according to claim 1, characterized in that: The bottom air duct (21) has the same length inside and outside the wind box (2).

3. The biomass particle combustion device according to claim 1, characterized in that: The diameter of the bottom air duct (21) ranges from dn15 to dn32.

4. The biomass particle combustion device according to claim 1, characterized in that: The furnace (1) uses PID technology to perform temperature control.

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