Biomass fuel industrial burner

Abstract

The utility model relates to the technical field of combustors, and discloses a biomass fuel industrial combustor which comprises a hearth and a hopper located above the hearth, a feeding port is formed in the lower end of the hopper, a penetrating hole is formed in the side wall of the lower end of the hopper, and a tool apron which is located in the lower end of the hopper after being inserted into the penetrating hole is arranged in the penetrating hole. A cutter is arranged on the cutter holder, a blocking seat corresponding to the cutter is arranged on the inner wall of the lower end of the hopper, and a driving device used for driving the cutter holder to move is arranged outside the hopper. The biomass fuel cutting device has the following advantages and effects that when an operator observes that the lower end of the hopper is arched through the observation window, the driving device is started to drive the cutter to be close to the blocking base, biomass fuel is cut, the problem of biomass fuel arching is effectively solved, the cutter is contained in the first containing cavity, and the blocking base is contained in the second containing cavity; and the hopper is not interfered during normal feeding.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, in particular to a biomass fuel industrial burner. Background Art

[0002] Biomass high temperature cracking burners using biomass pellets, wood chips, wood powder, sawdust and other organic biomass as fuel have the advantages of low pollution, obvious environmental benefits, no tar and wastewater and other waste emissions, high temperature, wide range of equipment applications, low operating costs, etc. There are many types of biomass fuels, and the most common ones are processed and formed from raw materials such as biomass straw and forestry waste.

[0003] For example, a Chinese utility model patent with authorization announcement number CN208886751U discloses a biomass fuel burner, which consists of a hopper, a frame, a screw conveyor, a fan and a furnace. A hopper is arranged on the frame, and a screw conveyor is installed in the frame below the hopper. The screw conveyor is connected and communicated with the furnace arranged outside the frame through a feed pipe. A fan is installed in the lower part of the frame, and the fan is connected and communicated with the screw conveyor through an anti-flashback air duct. The fan is connected and communicated with the furnace through the air duct. A slag cleaning device is also arranged in the frame, and the slag cleaning blades at one end of the slag cleaning device are placed in the furnace, and the other end of the slag cleaning device is installed in the frame. The fan is also connected and communicated with the slag cleaning device through the air duct, so that the screw on the slag cleaning device is cooled; an anti-flashback device is arranged in the feed pipe, and a plurality of anti-flashback holes are arranged on the screw conveyor near the feed pipe.

[0004] Compared with other fuels, biomass fuels have poor adaptability due to their raw materials such as straw and forestry waste, and are prone to arching when feeding materials through the hopper. In other fields, vibration motors can effectively avoid hopper blockage, but once larger-sized raw materials appear in biomass fuels, the role of vibration motors is limited and cannot completely solve the arching phenomenon when feeding materials into the hopper. Utility Model Content

[0005] The utility model aims to provide a biomass fuel industrial burner, which has the effect of solving the problem of biomass fuel arching during the hopper feeding process.

[0006] The above technical purpose of the utility model is achieved through the following technical scheme: a biomass fuel industrial burner, including a furnace, a hopper located above the furnace, a feeding port is provided at the lower end of the hopper, a through hole is opened on the side wall of the lower end of the hopper, a knife seat is provided in the through hole and is located in the lower end of the hopper after being inserted into the through hole, a knife is provided on the knife seat, a stop seat corresponding to the knife is provided on the inner wall of the lower end of the hopper, and a driving device for driving the knife seat to move is provided outside the hopper.

[0007] By adopting the above technical solution, when the biomass fuel in the hopper is arched, the driving device drives the knife seat to move, so that the knife moves and abuts against the stop seat, cutting the biomass fuel into multiple sections, effectively solving the problem of the biomass fuel in the hopper being arched.

[0008] The utility model is further configured as follows: an inner wall of the hopper is provided with a first accommodating cavity, and the first accommodating cavity is used to accommodate the tool.

[0009] By adopting the above technical solution, when the biomass fuel is not cut, the cutter is in the first accommodating chamber, which does not affect the normal feeding of the hopper.

[0010] The utility model is further configured as follows: the inner wall of the hopper is provided with a second accommodating cavity, and the second accommodating cavity is used to accommodate the stopper.

[0011] By adopting the above technical solution, the blocking seat is located in the second accommodating chamber, which does not affect the normal feeding of the hopper.

[0012] The utility model is further configured as follows: a soft cover tube is provided on the outer wall of the hopper, one end of the soft cover tube is fixed to the lower end side wall of the hopper, and the other end is fixed to the side wall of the knife seat, and the soft cover tube covers the perforation.

[0013] By adopting the above technical solution, the soft cover tube covers the perforation, thereby preventing fine particles in the biomass fuel from escaping from the perforation and scattering into the working environment.

[0014] The utility model is further configured as follows: the soft cover tube is connected to an air pipe, and the air pipe is connected to a wind source.

[0015] By adopting the above technical solution, the air pipe is connected to the air source, which makes the air pressure in the soft cover tube slightly greater than the air pressure on the inner wall of the lower end of the hopper, thereby reducing the escape of fine particles from the perforations inside the lower end of the hopper.

[0016] The utility model is further configured as follows: the wind source is compressed air or a fan.

[0017] The utility model is further configured as follows: a rubber sealing ring is provided on the inner wall of the perforation.

[0018] By adopting the above technical solution, the rubber sealing ring can reduce the gap between the knife seat and the inner wall of the perforation.

[0019] The utility model is further configured as follows: the driving device is a cylinder or an electric push rod.

[0020] The utility model is further configured as follows: a transparent observation window is installed on the side wall at the lower end of the hopper.

[0021] By adopting the above technical solution, the operator can check the feeding situation inside the lower end of the hopper through the observation window to determine whether arching occurs.

[0022] The utility model is further configured as follows: a bracket is provided on the outer wall of the hopper, and the driving device is installed on the bracket.

[0023] By adopting the above technical solution, the bracket provides an installation position for the driving device.

[0024] The beneficial effect of the utility model is that when the operator observes through the observation window that an arch appears at the lower end of the hopper, the driving device is started to drive the cutter close to the stop seat to cut the biomass fuel, effectively solving the problem of the arch of the biomass fuel. The first accommodating chamber accommodates the cutter, and the second accommodating chamber accommodates the stop seat, so that the hopper will not be disturbed when feeding normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a structural schematic diagram of Example 1.

[0027] Figure 2 It is a schematic diagram of the hopper structure of Example 1.

[0028] Figure 3 It is a schematic diagram of the structural relationship between the hopper, the knife holder and the knife in Example 1.

[0029] In the figure, 1, furnace; 2, hopper; 21, first accommodating chamber; 22, second accommodating chamber; 23, perforation; 24, rubber sealing ring; 3, knife holder; 4, knife; 5, driving device; 6, stopper; 7, bracket; 8, soft cover tube; 9, air pipe; 10, observation window. DETAILED DESCRIPTION

[0030] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of 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.

[0031] Example 1: A biomass fuel industrial burner, such as Figures 1 to 3As shown, it includes a furnace 1 and a hopper 2 located above the furnace 1, a feeding port is provided at the lower end of the hopper 2, a through hole 23 is opened on the side wall of the lower end of the hopper 2, a knife seat 3 is provided in the through hole 23 and is located in the lower end of the hopper 2 after being inserted into the through hole 23, a knife 4 is provided on the knife seat 3, a stop seat 6 corresponding to the knife 4 is provided on the inner wall of the lower end of the hopper 2, and a driving device 5 for driving the knife seat 3 to move is provided outside the hopper 2.

[0032] Furthermore, a first accommodating cavity 21 is provided on the inner wall of the hopper 2 , and the first accommodating cavity 21 is used to accommodate the tool 4 .

[0033] Furthermore, a second accommodating cavity 22 is provided on the inner wall of the hopper 2 , and the second accommodating cavity 22 is used to accommodate the stopper 6 .

[0034] Furthermore, a soft cover tube 8 is provided on the outer wall of the hopper 2 , one end of the soft cover tube 8 is fixed to the lower end side wall of the hopper 2 , and the other end is fixed to the side wall of the knife holder 3 , and the soft cover tube 8 covers the through hole 23 .

[0035] Furthermore, the soft cover tube 8 is connected to an air pipe 9, and the air pipe 9 is connected to a wind source.

[0036] Furthermore, the wind source is compressed air.

[0037] Furthermore, a rubber sealing ring 24 is provided on the inner wall of the through hole 23 .

[0038] Furthermore, the driving device 5 is a cylinder.

[0039] Furthermore, a transparent observation window 10 is installed on the lower side wall of the hopper 2 .

[0040] Furthermore, a bracket 7 is provided on the outer wall of the hopper 2 , and the driving device 5 is installed on the bracket 7 .

[0041] Working principle: When the biomass fuel in the hopper 2 is arched, the driving device 5 drives the knife seat 3 to move, so that the knife 4 moves and abuts against the stop seat 6, cutting the biomass fuel into multiple sections, effectively solving the problem of the biomass fuel in the hopper 2 being arched.

[0042] Example 2: A biomass fuel industrial burner, which is different from Example 1 in that the driving device 5 is an electric push rod and the gas source is a fan.

Claims

1. A biomass fuel industrial burner, comprising a furnace (1), a hopper (2) located above the furnace (1), a feeding port being provided at the lower end of the hopper (2), and characterized in that: A through hole (23) is provided on the side wall at the lower end of the hopper (2); a knife seat (3) is provided in the through hole (23) and is located in the lower end of the hopper (2) after being inserted into the through hole (23); a knife (4) is provided on the knife seat (3); a stop seat (6) corresponding to the knife (4) is provided on the inner wall at the lower end of the hopper (2); and a driving device (5) for driving the knife seat (3) to move is provided outside the hopper (2).

2. The biomass fuel industrial burner according to claim 1, characterized in that: The inner wall of the hopper (2) is provided with a first accommodating cavity (21), and the first accommodating cavity (21) is used to accommodate the cutter (4).

3. A biomass fuel industrial burner according to claim 2, characterized in that: The inner wall of the hopper (2) is provided with a second accommodating cavity (22), and the second accommodating cavity (22) is used to accommodate the blocking seat (6).

4. The biomass fuel industrial burner according to claim 1, characterized in that: The outer wall of the hopper (2) is provided with a soft cover tube (8), one end of the soft cover tube (8) is fixed to the lower end side wall of the hopper (2), and the other end is fixed to the side wall of the knife seat (3), and the soft cover tube (8) covers the perforation (23).

5. The biomass fuel industrial burner according to claim 4, characterized in that: The soft cover tube (8) is connected to an air pipe (9), and the air pipe (9) is connected to a wind source.

6. The biomass fuel industrial burner according to claim 5, characterized in that: The wind source is compressed air or a fan.

7. The biomass fuel industrial burner according to claim 4, characterized in that: The inner wall of the through hole (23) is provided with a rubber sealing ring (24).

8. The biomass fuel industrial burner according to claim 1, characterized in that: The driving device (5) is a cylinder or an electric push rod.

9. The biomass fuel industrial burner according to claim 1, characterized in that: A transparent observation window (10) is installed on the side wall at the lower end of the hopper (2).

10. The biomass fuel industrial burner according to claim 1, characterized in that: The outer wall of the hopper (2) is provided with a bracket (7), and the driving device (5) is installed on the bracket (7).

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