High-density compression type biomass boiler

Abstract

The invention relates to the technical field of biomass boilers, and discloses a high-density compression type biomass boiler which comprises a boiler body, a material adding mechanism is arranged at the top of the boiler body and comprises a fence, the fence is fixedly connected to the top of the boiler body, two rotating rods are rotationally connected to the inner side of the boiler body, and the two rotating rods are fixedly connected to the top of the boiler body. The outer portions of the rotating rods are fixedly connected with rotating plates, a motor is installed on the outer side of the boiler body, the output end of the motor is fixedly connected with a lead screw, the outer side of the lead screw and the outer side of one of the rotating rods are fixedly connected with first belt wheels, and the peripheries of the two first belt wheels are sleeved with belts. Fuel adding and slag removing operation are integrated under the same power drive, the motor is started, ash generated after combustion can be pushed by the scraper blade to complete slag removing while the rotating plate is turned over to add fuel, in the process, operators are prevented from making direct contact with a high-temperature area, hot air burning is effectively prevented, and the use safety is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of biomass boilers, and specifically relates to a high-density compression type biomass boiler. Background Art

[0002] At present, with the transformation of the energy structure and increasingly stringent environmental protection requirements, biomass boilers have become important equipment in the industrial and civil heating fields because they can efficiently utilize renewable biomass fuels, reduce dependence on fossil energy, and reduce greenhouse gas emissions such as carbon dioxide. Its working principle is to burn biomass fuels such as straw and wood chips in the furnace, and transfer the generated heat energy to the medium through a heat exchange device, so as to achieve the functions of heating or power generation. With the wide application of biomass energy, higher requirements are put forward for the combustion efficiency, operation convenience and environmental protection performance of biomass boilers. In terms of mechanical structure and working principle, existing biomass boilers usually use manual or simple mechanical devices for fuel addition, separate fuel and ash through a fixed sieve plate, and rely on natural ventilation or an independent fan for combustion support. In the fuel addition link, the manual operation method requires the operator to frequently open the furnace door, which not only poses a risk of being burned by high temperature, but also causes heat loss in the furnace and affects the combustion efficiency; most mechanical addition devices are independent systems, separated from the slag cleaning process, and cannot perform synchronous operations. Taking a wood processing enterprise as an example, when using a traditional biomass boiler for waste combustion heating, the operator needs to open the furnace door to add fuel every hour, frequently contacting the high-temperature environment during this period, posing a safety hazard; at the same time, due to the separate steps of slag cleaning and feeding, each operation requires a short shutdown, resulting in a reduction in the operating efficiency of the boiler. Therefore, the present invention provides a high-density compression type biomass boiler to solve the deficiencies existing in the prior art. Summary of the Invention

[0003] In view of the deficiencies of the prior art, the present invention provides a high-density compression type biomass boiler, which solves the problems mentioned in the above background art.

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A high-density compression type biomass boiler, including a boiler body, a feeding mechanism is provided at the top of the boiler body, the feeding mechanism includes a fence, the fence is fixedly connected to the top of the boiler body, two rotating rods are rotatably connected to the inside of the boiler body, a rotating plate is fixedly connected to the outside of the rotating rods, a motor is installed on the outside of the boiler body, an output end of the motor is fixedly connected to a lead screw, a first belt pulley is fixedly connected to the outside of the lead screw and the outside of one of the rotating rods, a belt is sleeved on the outer circumferences of the two first belt pulleys, and a cover plate is provided on the outside of the boiler body.

[0005] Preferably, one end of each of the two rotating rods is fixedly connected with a second pulley, and a belt is sleeved on the outer periphery of the two second pulleys. One end of the lead screw is rotatably connected to the inner side of the boiler body, and a guide rod is fixedly connected to the inner wall of the boiler body.

[0006] Preferably, a scraper is threadedly connected to the outer side of the lead screw. A plurality of notch grooves are formed in the bottom of the scraper, and the inner side of the scraper is slidably connected to the outer side of the guide rod.

[0007] Preferably, a first perforated plate and a second perforated plate are fixedly connected to the inner wall of the boiler body. The first perforated plate is located above the second perforated plate, and the bottom of the scraper is slidably connected to the top of the second perforated plate.

[0008] Preferably, an installation groove is formed in the top of the boiler body. A rotating shaft is rotatably connected to the inner wall of the installation groove, and a second cylindrical gear and a cam are fixedly connected to the outside of the rotating shaft.

[0009] Preferably, one end of the other rotating rod is fixedly connected with a first cylindrical gear, and the first cylindrical gear is meshed with the rotating shaft.

[0010] Preferably, an air cylinder is fixedly connected to the inside of the installation groove. A sliding rod is slidably connected to one end of the air cylinder, and a spring is sleeved on the outside of the sliding rod.

[0011] Preferably, one end of the spring is fixedly connected to one end of the sliding rod, the other end of the spring is fixedly connected to the outside of the air cylinder, and the outside of the cam is in contact with one end of the sliding rod.

[0012] Preferably, the other end of the sliding rod is fixedly connected with a piston, and the outside of the piston is slidably connected to the inside of the air cylinder.

[0013] Preferably, an air outlet is fixedly connected to the other end of the air cylinder. One end of the air outlet is located above the second perforated plate. An air inlet is formed in the outside of the air cylinder. Check valves are arranged inside the air outlet and the air inlet.

[0014] The present invention provides a high-density compressed biomass boiler. It has the following beneficial effects: 1. Through a unique structural design, the present invention integrates fuel addition and slag cleaning operations under the drive of the same power. When starting the motor, while the rotating plate flips to add fuel, the scraper is used to push the ashes after combustion to complete slag cleaning. This process avoids the operator from directly contacting the high-temperature area, effectively prevents hot gas burns, greatly improves the use safety. At the same time, synchronously completing the two operations reduces the interruption time during the operation of the equipment, significantly improves the work efficiency, and optimizes the overall process of boiler operation.

[0015] 2. Through the gear transmission ratio and the cam mechanism, the present invention converts the rotation of the rotating plate into the reciprocating motion of the piston in the air cylinder, forming an auxiliary combustion system. The piston movement causes the air cylinder to generate compressed gas, which is blown towards the combustion area through the air outlet, effectively disturbing the air, increasing the contact area between oxygen and fuel, and promoting the full combustion of the fuel. The setting of the one-way valve ensures the one-way flow of gas and ensures the stable operation of the auxiliary combustion function. It not only improves the combustion efficiency but also reduces the pollutant emissions generated by incomplete combustion of the fuel, achieving the effect of energy conservation and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the right three-dimensional view of the present invention; Figure 2 is the left three-dimensional view of the present invention; Figure 3 is the schematic diagram of the expanded state of the present invention; Figure 4 is the schematic diagram of the internal structure of the boiler body of the present invention; Figure 5 is the schematic diagram of the internal structure of the installation groove of the present invention.

[0017] Wherein, 1. Boiler body; 2. Fence; 3. Rotating rod; 4. Rotating plate; 5. Pulley 1; 6. Pulley 2; 7. Motor; 8. Lead screw; 9. Guide rod; 10. Scraper; 11. Mesh plate 1; 12. Mesh plate 2; 13. Installation groove; 14. Cylindrical gear 1; 15. Rotating shaft; 16. Cylindrical gear 2; 17. Cam; 18. Air cylinder; 19. Slide rod; 20. Spring; 21. Piston; 22. Air outlet; 23. Air inlet; 24. Cover plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0019] Please refer to the attached Figure 1 - attached Figure 5, an embodiment of the present invention provides a high-density compressed biomass boiler, including a boiler body 1. The overall integration of the boiler is relatively high, and it is a high-density compressed boiler. The boiler body 1 serves as the main structure of the entire device, bearing core functions such as fuel combustion and heat conversion. At the top of the boiler body 1, there is a feeding mechanism. The feeding mechanism includes a fence 2. The fence 2 surrounds the top of the boiler body 1. It can not only prevent fuel from spilling when adding fuel, but also constructs a relatively enclosed space for the entire feeding mechanism, reducing heat loss. It is fixedly connected to the top of the boiler body 1. Inside the boiler body 1, two rotating rods 3 are rotatably connected. The rotating rods 3 provide stable rotational support for the rotating plate 4, enabling the rotating plate 4 to flexibly perform flipping actions. A rotating plate 4 is fixedly connected to its outside. The rotating plate 4 serves as a fuel-bearing component. Its special design ensures the stability of the fuel during the adding process and can accurately pour the fuel onto the top of the mesh plate 11 when flipping. A motor 7 is installed outside the boiler body 1. The motor 7 serves as a power source, providing the necessary driving force for the entire feeding mechanism and slag cleaning operations. The output end of the motor 7 is fixedly connected to a lead screw 8. A pulley 5 is fixedly connected to the outside of both the lead screw 8 and one of the rotating rods 3. A belt is sleeved on the outer periphery of the two pulleys 5. In this way, the rotation of the lead screw 8 can transmit power to the rotating rod 3 through the linkage of the pulley 5 and the belt, thereby driving the rotating plate 4 to flip. At the same time, one end of the lead screw 8 is rotatably connected to the inside of the boiler body 1. A guide rod 9 is fixedly connected to the inner wall of the boiler body 1. A scraper 10 is threadedly connected to the outside of the lead screw 8. When the lead screw 8 rotates, the scraper 10 can move along the axial direction of the lead screw 8. Multiple notch grooves are provided at the bottom of the scraper 10, enabling it to more effectively let the ash pass through the holes of the mesh plate 2 12 when pushing the ash that has burned out, improving the slag cleaning efficiency. The guide rod 9 provides a stable guiding function for the movement of the scraper 10, ensuring that the scraper 10 can move smoothly in a straight line under the drive of the lead screw 8 without deviation. The inner side of the scraper 10 is slidably connected to the outside of the guide rod 9. The inner wall of the boiler body 1 is fixedly connected with a mesh plate 1 11 and a mesh plate 2 12. The mesh plate 1 11 is located above the mesh plate 2 12. The mesh plate 1 11 and the mesh plate 2 12 play a role in layered screening and supporting the fuel. The mesh plate 1 11 enables the burning fuel to fall through the holes to the top of the lower mesh plate 2 12, while the mesh plate 2 12 can support the unburned fuel and prevent the ash that has burned out from directly falling to the bottom layer of the inner cavity of the boiler body 1. At the same time, its mesh design can ensure that the ash can pass through smoothly under the push of the scraper 10. The bottom of the scraper 10 is slidably connected to the top of the mesh plate 2 12.An installation groove 13 is provided at the top of the boiler body 1. The installation groove 13 provides an installation space for components such as a rotating shaft 15, a second cylindrical gear 16, a cam 17, and a cylinder 18. The inner wall of the installation groove 13 is rotatably connected to the rotating shaft 15. The outer part of the rotating shaft 15 is fixedly connected to the second cylindrical gear 16 and the cam 17. The other end of one of the rotating rods 3 is fixedly connected to a first cylindrical gear 14. The first cylindrical gear 14 is meshed with the rotating shaft 15. When the rotating plate 4 rotates, it will drive the first cylindrical gear 14 to rotate, and then drive the rotating shaft 15 to rotate through the meshing action. Since the diameter of the first cylindrical gear 14 is larger than that of the rotating shaft 15, according to the principle of the gear transmission ratio, after the rotating plate 4 rotates one week, the rotating shaft 15 will drive the cam 17 to rotate multiple weeks. A cylinder 18 is fixedly connected inside the installation groove 13. One end of the cylinder 18 is slidably connected to a sliding rod 19. A spring 20 is sleeved outside the sliding rod 19. One end of the spring 20 is fixedly connected to one end of the sliding rod 19, and the other end is fixedly connected to the outside of the cylinder 18. The outside of the cam 17 is in contact with one end of the sliding rod 19. As the cam 17 rotates, it will periodically push the sliding rod 19 to slide inside the cylinder 18. The spring 20 is compressed when the sliding rod 19 is pushed. When the cam 17 rotates away from the sliding rod 19, the spring 20 will bounce the sliding rod 19 back to the initial position, so as to realize the reciprocating movement of the sliding rod 19 driving the piston 21 inside the cylinder 18. The other end of the sliding rod 19 is fixedly connected to a piston 21. The outside of the piston 21 is slidably connected to the inside of the cylinder 18. The reciprocating movement of the piston 21 inside the cylinder 18 causes a pressure change inside the cylinder 18. The other end of the cylinder 18 is fixedly connected to an air outlet 22. One end of the air outlet 22 is located above the second mesh plate 12. When the piston 21 moves towards the air outlet 22, the gas inside the cylinder 18 is compressed, and the gas is blown into the internal cavity of the boiler body 1 above the second mesh plate 12 through the air outlet 22, which has the effect of assisting combustion when adding fuel; an air inlet 23 is provided on the outside of the cylinder 18. When the piston 21 moves towards the air inlet 23, a negative pressure is formed inside the cylinder 18, and the outside air enters the cylinder 18 through the air inlet 23. Check valves are provided inside both the air outlet 22 and the air inlet 23, ensuring that the gas can only flow in one direction, and ensuring the stability and effectiveness of the operation of the cylinder 18. A cover plate 24 is provided on the outside of the boiler body 1. The cover plate 24 is convenient to open during slag cleaning to clean the ash accumulated at the bottom layer of the internal cavity of the boiler body 1. One end of each of the two rotating rods 3 is fixedly connected to a second pulley 6. A belt is sleeved on the outer circumference of the two second pulleys 6. When the lead screw 8 rotates, it will, under the linkage of the second pulley 6, the first pulley 5 and the belt, cause the two rotating plates 4 to flip, so that the added fuel falls onto the top of the first mesh plate 11.

[0020] Specifically, first, place the fuel to be added on the top of the two rotating plates 4. The special design of the rotating plates 4 provides a stable bearing surface, effectively preventing the fuel from slipping when placed. Start the motor 7. As the power core, the output end of the motor 7 drives the screw rod 8 to rotate. The screw rod 8 is threadedly connected to the scraper 10, which converts the rotation of the screw rod 8 into the linear movement of the scraper 10 along the axial direction of the screw rod 8. During the movement, the fuel burning on the top of the first mesh plate 11 will, due to the hole design of the first mesh plate 11 and under the action of its own gravity and the loosening effect generated by combustion, fall through the holes to the top of the second mesh plate 12 below. At this time, with multiple notch grooves opened at the bottom of the scraper 10, the scraper 10 can more efficiently push the completely burned ash during movement. The existence of the notch grooves increases the contact area between the scraper 10 and the ash, and at the same time destroys the aggregation structure of the ash, enabling the ash to smoothly pass through the holes of the second mesh plate 12 under the push of the scraper 10 and finally fall to the bottom layer of the inner cavity of the boiler body 1. After the slag cleaning is completed, open the cover plate 24. Since the cover plate 24 is arranged outside the boiler body 1, its opening operation is convenient and fast, and the ash accumulated at the bottom layer of the inner cavity of the boiler body 1 can be directly cleaned. At the same time, when the screw rod 8 rotates, through the linkage mechanism of the second pulley 6, the first pulley 5 and the belt, the power is transmitted to the two rotating rods 3. The belt drive has the characteristics of stable transmission and low noise, ensuring the stable transmission of power. The rotating rod 3 drives the rotating plate 4 to flip. During the flipping process, the fuel, due to gravity, accurately falls to the top of the first mesh plate 11. This way of adding fuel enables the operator not to directly contact the high-temperature area inside the boiler body 1, avoiding the user being burned by the hot air in the boiler body 1, and realizing the synchronous operation of adding fuel and slag cleaning, greatly improving the work efficiency. In addition, when the rotating plate 4 rotates, it will drive the first cylindrical gear 14 fixed on its rotating rod 3 to rotate. Since the first cylindrical gear 14 has a larger diameter than the rotating shaft 15, according to the principle of the gear transmission ratio, after the rotating plate 4 rotates one week, the rotating shaft 15 will drive the cam 17 to rotate multiple weeks. The outer contour curve design of the cam 17 causes it to periodically push the sliding rod 19 during rotation. The sliding of the sliding rod 19 in the air cylinder 18 is affected by the elastic force of the spring 20 sleeved outside. When the cam 17 pushes the sliding rod 19, the spring 20 is compressed and stores elastic potential energy; when the cam 17 rotates away from the sliding rod 19, the spring 20 releases the elastic potential energy and rebounds the sliding rod 19 to its initial position, thus realizing the reciprocating movement of the sliding rod 19 driving the piston 21 in the air cylinder 18. The reciprocating movement of the piston 21 in the air cylinder 18 changes the gas volume inside the air cylinder 18, generating a pressure change. When the piston 21 moves towards the air outlet 22, the gas in the air cylinder 18 is compressed, the pressure increases, and the gas blows towards the inner cavity of the boiler body 1 above the second mesh plate 12 at a certain flow rate through the air outlet 22.This air flow can disturb the air in the combustion area, increase the contact area between oxygen and fuel, assist combustion when adding fuel, make the fuel burn more fully, and improve the combustion efficiency. When the piston 21 moves towards the air inlet 23, a negative pressure is formed in the air cylinder 18. Under the action of the pressure difference, the outside air enters the air cylinder 18 through the air inlet 23. The one-way valves provided inside the air outlet 22 and the air inlet 23 ensure that the gas can only flow in one direction, prevent the gas from flowing back, ensure the stability and effectiveness of the operation of the air cylinder 18, and provide guarantee for the continuous and stable operation of the auxiliary combustion function.

[0021] Working principle: First, the fuel to be added can be placed on the tops of the two rotating plates 4. When the motor 7 is started to drive the screw rod 8 to rotate, the scraper 10 can be moved. The fuel burning on the top of the first mesh plate 11 will fall through the holes to the top of the second mesh plate 12. Under the push of the scraper 10, the ash that has burned out can pass through the holes of the second mesh plate 12 and fall to the bottom layer of the inner cavity of the boiler body 1. Then, the cover plate 24 can be opened to clean the ash. However, when the screw rod 8 rotates, under the linkage of the second pulley 6, the first pulley 5 and the belt, the two rotating plates 4 will be flipped, so that the added fuel will fall to the top of the first mesh plate 11. This way of adding fuel can prevent the user from being burned by the hot air in the boiler body 1 and perform the slag cleaning operation at the same time; in addition, the rotation of the rotating plate 4 will make the first cylindrical gear 14 rotate. The first cylindrical gear 14 has a larger diameter than the rotating shaft 15. Therefore, after the rotating plate 4 rotates one week, the cam 17 will rotate multiple weeks, and then the sliding rod 19 drives the piston 21 to move reciprocally, and the inner cavity of the boiler body 1 can be blown through the air outlet 22, playing the role of assisting combustion when adding fuel.

[0022] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-density compressed biomass boiler, comprising a boiler body (1), characterized in that, A feeding mechanism is provided at the top of the boiler body (1). The feeding mechanism includes a fence (2), and the fence (2) is fixedly connected to the top of the boiler body (1). Two rotating rods (3) are rotatably connected to the inner side of the boiler body (1). A rotating plate (4) is fixedly connected to the outer part of the rotating rod (3). A motor (7) is installed on the outer side of the boiler body (1). The output end of the motor (7) is fixedly connected to a lead screw (8). Pulley one (5) is fixedly connected to the outer sides of the lead screw (8) and one of the rotating rods (3). A belt is sleeved on the outer circumferences of the two pulley ones (5). A cover plate (24) is provided on the outer side of the boiler body (1).

2. The high-density compressed biomass boiler according to claim 1, wherein Pulley two (6) is fixedly connected to one end of each of the two rotating rods (3). A belt is sleeved on the outer circumferences of the two pulley twos (6). One end of the lead screw (8) is rotatably connected to the inner side of the boiler body (1). A guide rod (9) is fixedly connected to the inner wall of the boiler body (1).

3. The high-density compressed biomass boiler according to claim 2, characterized in that, A scraper (10) is threadedly connected to the outer side of the lead screw (8). A plurality of notch grooves are formed at the bottom of the scraper (10). The inner side of the scraper (10) is slidably connected to the outer side of the guide rod (9).

4. A high-density compressed biomass boiler according to claim 3, characterized in that, Mesh plate one (11) and mesh plate two (12) are fixedly connected to the inner wall of the boiler body (1). Mesh plate one (11) is located above mesh plate two (12). The bottom of the scraper (10) is slidably connected to the top of mesh plate two (12).

5. A high-density compressed biomass boiler according to claim 1, characterized in that, An installation groove (13) is formed at the top of the boiler body (1). A rotating shaft (15) is rotatably connected to the inner wall of the installation groove (13). A cylindrical gear two (16) and a cam (17) are fixedly connected to the outer part of the rotating shaft (15).

6. The high-density compressed biomass boiler according to claim 5, characterized in that, Cylindrical gear one (14) is fixedly connected to the other end of one of the rotating rods (3). Cylindrical gear one (14) is meshed with the rotating shaft (15).

7. The high-density compressed biomass boiler according to claim 6, characterized in that, An air cylinder (18) is fixedly connected to the inside of the installation groove (13). A sliding rod (19) is slidably connected to one end of the air cylinder (18). A spring (20) is sleeved on the outer part of the sliding rod (19).

8. The high-density compressed biomass boiler according to claim 7, wherein One end of the spring (20) is fixedly connected to one end of the sliding rod (19). The other end of the spring (20) is fixedly connected to the outer side of the air cylinder (18). The outer side of the cam (17) is in contact with one end of the sliding rod (19).

9. A high-density compressed biomass boiler according to claim 8, characterized in that, The other end of the sliding rod (19) is fixedly connected to a piston (21). The outer side of the piston (21) is slidably connected to the inner side of the air cylinder (18).

10. A high-density compressed biomass boiler according to claim 9, characterized in that, The other end of the air cylinder (18) is fixedly connected to an air outlet (22). One end of the air outlet (22) is located above mesh plate two (12). An air inlet (23) is formed on the outer side of the air cylinder (18). Check valves are provided inside both the air outlet (22) and the air inlet (23).

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