A raw material crushing device for biomass combustion particles

Abstract

The invention discloses a raw material crushing device for biomass combustion particles, which relates to the technical field of biomass crushing, and comprises a double-shaft crusher. A hopper is arranged at the top of the double-shaft crusher. A conveying type unbundling crushing mechanism is connected to the opening of the hopper in the double-shaft crusher. The conveying type unbundling crushing mechanism comprises a climbing conveyor and a dust cover. The lower end opening of the dust cover is obliquely installed above the conveyor belt in the climbing conveyor, and is fixedly connected to a bracket in the climbing conveyor. A plurality of cutting knives with upwardly pointed knives are fixedly installed on the surface of the conveyor belt, and a plurality of baffles are fixedly installed on the inner bottom surface of the dust cover. The invention can limit the amount of forage transported to the double-shaft crusher by the conveying type unbundling crushing mechanism through the dust cover and a plurality of baffles, so as to avoid blockage of the hopper of the double-shaft crusher, ensure that the double-shaft crusher can smoothly crush materials, reduce equipment downtime and maintenance time caused by blockage, and ensure stable operation of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of biomass pulverization, and in particular to a raw material pulverization device for biomass combustion particles. Background Art

[0002] In agricultural production, the harvested crop straw can be collected, compressed and processed to make bales that are easy to store and transport. It can be used in the production of biomass energy and converted into energy through combustion or fermentation. In order to make better use of the bales, crushing equipment is often required. The bales can be crushed into uniform fine particles after being processed by the crushing equipment. These crushed materials can be further processed into combustion pellets. As a clean biomass energy, combustion pellets have the advantages of high calorific value, full combustion and low pollution.

[0003] However, the compressed bales are larger in size, and the relatively loose straw is harder and easily accumulates at the feed port of the double-shaft grinder, causing blockage, which affects the crushing effect of the double-shaft grinder and brings certain adverse effects to people's use process. In order to solve the shortcomings of the prior art, we propose a raw material crushing device for biomass combustion particles. Summary of the invention

[0004] The main purpose of the present invention is to provide a raw material crushing device for biomass combustion particles, which can effectively solve the problems in the background technology.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is:

[0006] A raw material crushing device for biomass combustion particles comprises a double-shaft crusher, a hopper is arranged at the top of the double-shaft crusher, and a conveying type unbundling and crushing mechanism is connected to the opening of the hopper in the double-shaft crusher;

[0007] The conveying type unbundling and shredding mechanism includes a climbing conveyor and a dust cover, the lower end opening of the dust cover is obliquely installed above the conveyor belt in the climbing conveyor, and is fixedly connected to the bracket in the climbing conveyor, and a plurality of cutting knives with upwardly pointed tips are fixedly installed on the surface of the conveyor belt, and a plurality of baffles are fixedly installed on the inner bottom surface of the dust cover.

[0008] Preferably, a plurality of baffles are installed above the dust cover at equal intervals along the upper surface of the dust cover, and the lower ends of a plurality of baffles inclined upward successively approach the upper surface of the conveyor belt.

[0009] Preferably, a plurality of steel belts three are fixedly connected between the lower bottom surfaces of the plurality of cutting knives, and the steel belts three are fixedly fitted around and installed on the outer surface of the conveyor belt.

[0010] Preferably, a feed inlet is arranged above the lower end of the dust cover, and a discharge pipe with an opening facing downward is arranged below the upper end of the dust cover, and the opening of the discharge pipe is arranged directly above the hopper in the double-shaft crusher.

[0011] Preferably, a plurality of steel belts 2 are fixedly mounted on the periphery of the conveyor belt, and a plurality of vertical rollers are fixedly mounted on the outer surface of the steel belts 2.

[0012] Preferably, a steel belt 1 is fixedly installed on the periphery of the opening edges on both sides of the conveyor belt, and a plurality of densely arranged wind plates are fixedly installed on the outer surface of the steel belt 1.

[0013] Preferably, a protective mesh cover is fixedly mounted on the lower end of the dust cover, and the protective mesh cover is arranged below the conveyor belt.

[0014] Preferably, a dust cover is fixedly mounted on the top of the hopper, and a discharge pipe of the dust cover passes downward through the dust cover.

[0015] Preferably, the blade of the cutter is inclined toward the direction of rotation of the conveyor belt.

[0016] Preferably, saw teeth are fixedly connected to the lower side of the baffle.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Avoid blockage and ensure stable operation of equipment

[0019] 1.1. The present invention can limit the amount of forage transported to the double-shaft pulverizer by the conveyor-type unbundling and pulverizing mechanism through the synergistic effect of the dust cover and multiple baffles, avoid blockage of the hopper of the double-shaft pulverizer, ensure that the double-shaft pulverizer can pulverize the material smoothly, reduce equipment downtime and maintenance time caused by blockage, and ensure stable operation of the equipment.

[0020] 1.2. The present invention uses the cutter and vertical roller on the conveyor belt, in conjunction with the dust cover and baffle plate, to grade and cut and tear the bales, so that the straw in the bales is dispersed as much as possible, avoiding large-volume bales directly entering the double-shaft crusher and causing motor overload, thereby protecting the motor and maintaining stable operation of the equipment.

[0021] 2. Improve work efficiency

[0022] 2.1. The present invention utilizes a conveyor belt in a conveying type unbundling and crushing mechanism to automatically transport the bales from a low position to a hopper at a high position of a double-shaft crusher. This is more labor-saving than directly putting the bales into the hopper, increases the loading speed, and thus improves the overall work efficiency.

[0023] 2.2. The present invention performs primary pretreatment on the entire bale through a conveying type unbundling and crushing mechanism, and then cooperates with a double-shaft crusher to crush it, which has a higher crushing efficiency. In addition, during the conveying process, the bale can be automatically turned over through the cooperation of the vertical roller and the cutter and the action of its own gravity, and the bale can be torn and cut at multiple angles, which speeds up the unbundling and crushing speed and further improves the work efficiency.

[0024] 3. Optimize the working environment

[0025] 3.1. The conveying type unbundling and crushing mechanism of the present invention can effectively block the dust generated when the straw bales are unbundled, crushed and torn by means of the dust cover and the dust cover, thereby reducing environmental pollution and providing a relatively clean working environment for the staff.

[0026] 3.2. The present invention, through the rotation of the wind plates on both sides of the conveyor belt in the conveying type unbundling and shredding mechanism, cooperates with the rotation of the rotary cutter of the three-stage shredding mechanism in the double-shaft shredder, can guide the shredded particles in the dust cover, hopper, and shredding box in turn to flow with the air and be discharged from the discharge pipe in a centralized manner, so that the entire feeding and shredding process is more orderly, the possibility of dust generation is reduced, and the working environment is further optimized. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0028] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0029] Figure 3 is a cross-sectional view of the present invention;

[0030] Figure 4 It is an enlarged view of circle A of the cross-sectional view of the present invention;

[0031] Figure 5 A cross-sectional connection diagram of a conveyor belt and a steel belt in the present invention;

[0032] Figure 6 Schematic diagram of the pulverization simulation of the present invention;

[0033] Figure 7 It is a schematic diagram of the three-stage crushing mechanism of the present invention;

[0034] Figure 8 It is a structural diagram of embodiment 3 of the present invention.

[0035] In the figure: 1. Double-shaft crusher; 101. Crushing box; 102. Hopper; 103. Reducer motor 1; 104. Discharge pipe; 105. Base frame; 106. Fixed knife; 107. Gear; 108. Saw blade; 109. Roller; 110. Transmission belt; 111. Pulley 1; 112. Pulley 2; 113. Round roller; 114. Peeler; 2. Conveyor type unbundling and crushing mechanism; 201. Dust cover; 202. Baffle; 203. Feeding port; 204. Protective net cover; 205. Bracket; 206. Reducer motor 2; 207. Saw teeth; 208. Round roller; 209. Conveyor belt; 210. Steel belt 1; 211. Wind plate; 212. Steel belt 2; 213. Vertical roller; 214. Steel belt 3; 215. Cutting knife; 216. Observation port; 3. Dust cover. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0037] Embodiment 1:

[0038] like Figure 1-6 As shown, a raw material crushing device for biomass combustion particles includes a double-shaft crusher 1 in the prior art, and the double-shaft crusher 1 includes a crushing box 101, a hopper 102, a reduction motor 103, a discharge pipe 104 and a base frame 105. The crushing box 101 and the reduction motor 103 are respectively fixedly installed on both sides above the base frame 105, and the hopper 102 is fixedly connected to the top of the hopper 102. The discharge pipe 104 is fixedly connected to the discharge pipe 104 through a conical cylinder. Two parallel rollers 109 are rotatably installed in the crushing box 101, and a plurality of mutually staggered saw blades 108 are coaxially fixedly installed on the two rollers 109, and the two rollers 109 are respectively fixedly installed with a plurality of mutually staggered saw blades 108. The ends of the two gears 107 are coaxially fixedly installed. The two gears 107 are arranged on the outside of the crushing box 101, and the outer circles are meshed with each other. A number of fixed knives 106 interlaced with saw blades 108 are fixedly installed on both sides of the inner cavity of the crushing box 101. The top of the fixed knife 106 is higher than the saw blade 108, and the tops of the fixed knives 106 gradually approach the inner cavity from the inner wall of the crushing box 101. The upper edge of the top of the fixed knife 106 gradually tilts downward, which is mainly used to concentrate the straw falling into the hopper 102 on the saw blades 108 on the two rollers 109. The output shaft of the reduction motor 103 is coaxially fixedly connected with a roller 109 through a coupling;

[0039] As is known to all, when the reduction motor 103 is connected to an external power source through a wire and energized, the output shaft of the reduction motor 103 can directly drive the connected roller 109 to rotate, and then two mutually meshing gears 107 are used to simultaneously drive several saw blades 108 on the two rollers 109 to synchronously engage in the opposite direction to tear apart the straw and other raw materials that fall into the shredding box 101 from the hopper 102.

[0040] In this embodiment, the opening of the hopper 102 in the double-shaft crusher 1 is connected to a conveyor-type unbundling and crushing mechanism 2, which includes a climbing conveyor and a dust cover 201. The lower end opening of the dust cover 201 is obliquely installed above the conveyor belt 209 in the climbing conveyor, and is fixedly connected to the bracket 205 in the climbing conveyor. The dust cover 201 and the conveyor belt 209 are arranged parallel to each other. The climbing conveyor is mainly used to transport the straw bale raw material from the bottom to the hopper 1 in the double-shaft crusher 1. 02, the climbing conveyor also includes a reduction motor 206 and a plurality of round rollers 208 arranged in parallel and equidistantly, the plurality of round rollers 208 are arranged in an inclined straight line and are installed on the top of the bracket 205, the round rollers 208 and the bracket 205 are rotatably connected, the inner ring of the conveyor belt 209 is squeezed around and installed on the periphery of the plurality of round rollers 208, the reduction motor 206 and the bracket 205 are fixedly connected, and the output shaft of the reduction motor 206 is coaxially fixedly connected with a round roller 208 through a coupling;

[0041] When the reduction motor 206 is connected to an external power source through a wire and energized, the output shaft of the reduction motor 206 can drive the outer conveyor belt 209 to rotate along the several round rollers 208 through the connected round rollers 208, and the upper surface of the conveyor belt 209 moves from bottom to top. Because the upper surface of the conveyor belt 209 is in an inclined state, the friction between the conveyor belt 209 and the transported bales is small, and the bales transported on the conveyor belt 209 can rely on gravity to roll downward along the upper surface of the conveyor belt 209.

[0042] In this embodiment, an inlet 203 is provided above the lower end of the dust cover 201, and a discharge pipe with an opening facing downward is connected to the lower end of the upper end of the dust cover 201. A dust cover 3 is fixedly installed on the top of the hopper 102, and the discharge pipe of the dust cover 201 passes downward through the dust cover 3. It can be seen that the conveying type unbundling and crushing mechanism 2 is mainly used to block the dust generated when the bales are unbundled, crushed and torn through the dust cover 201 and the dust cover 3. The opening of the discharge pipe is set just above the hopper 102 in the double-shaft crusher 1, and a protective mesh cover 204 is fixedly installed on the lower end of the dust cover 201. The protective mesh cover 204 is mainly used to prevent the staff from being able to touch the cutter 215 below the conveyor belt 209 upward to avoid accidental injury to the staff. The protective mesh cover 204 is set below the conveyor belt 209.

[0043] In this embodiment, a plurality of cutters 215 with upwardly pointed blades are fixedly mounted on the surface of the conveyor belt 209. The plurality of cutters 215 are arranged in several rows at equal intervals around the periphery of the conveyor belt 209. The distance between two adjacent cutters 215 is greater than the radius of the entire straw bale, which is mainly used to avoid having too many cutters 215 under the entire straw bale. The fewer cutters 215 supported under the entire straw bale, the easier it is for the straw bale to be inserted into the cutters 215, which lays a foundation for the cutters 215 to cut the straw bale. The blades of the cutters 215 are inclined toward the direction in which the conveyor belt 209 rotates. A plurality of steel belts 214 are fixedly connected between the lower bottom surfaces of the plurality of cutters 215. The steel belts 214 are fixedly fitted around the outer surface of the conveyor belt 209. The bendability and high mechanical strength of the steel belts 214 can be used to ensure the normal rotation of the conveyor belt 209 while increasing the stability between the plurality of cutters 215 and the surface of the conveyor belt 209.

[0044] Several steel belts 212 are fixedly installed on the periphery of the conveyor belt 209, and several vertical rollers 213 are fixedly installed on the outer surface of the steel belt 212. The vertical rollers 213 are also divided into several rows and arranged around the periphery of the conveyor belt 209 at equal intervals. The distance between two adjacent vertical rollers 213 is greater than the radius of the entire straw bale. Secondly, several vertical rollers 213 and several cutting knives 215 are staggered. Several baffles 202 are fixedly installed on the inner bottom surface of the dust cover 201. Several baffles 202 are installed above the dust cover 201 at equal intervals along the upper surface of the dust cover 201, and can refer to Figure 6 , the lower ends of a plurality of baffles 202 tilted upwards approach the upper surface of the conveyor belt 209 in sequence, and the lower edge of the baffle 202 is fixedly connected with a sawtooth 207;

[0045] refer to Figure 6 When the reduction motor 206 in the conveying type unbundling and crushing mechanism 2 is in working state, after the straw bale is put into the feeding port 203 relatively close to the bottom surface, the rotating conveyor belt 209 can automatically drive the straw bale to be gradually tilted and transported upward, which is more labor-saving than directly putting it into the hopper 102 in the double-shaft crusher 1. After the upper end of the straw bale is against the lower end of the first baffle 202, the rotating conveyor belt 209 can drive a plurality of vertical rollers 213 and a plurality of cutters 215 from the bottom of the straw bale through a plurality of steel belts 212 and a plurality of steel belts 3 214 to tear and cut the straw bale from the bottom, thereby achieving the purpose of unbundling, crushing and mixing.

[0046] In this embodiment, the straw bale is affected by its own gravity and has a component force that rolls downward along the upper surface of the conveyor belt 209, that is, when the vertical roller 213 and the cutter 215 pass under the straw bale each time, tearing and cutting, the straw bale is in a short suspended state, and the friction between the straw bale and the conveyor belt 209 below is small, so the straw bale can be rolled down along the conveyor belt 209 for a short time, so as to achieve the effect of automatic turning over of the straw bale, thereby achieving multi-angle tearing and cutting of the straw bale, that is, during the conveying process, the straw bale can be automatically turned over by the cooperation of the vertical roller 213 and the cutter 215 and the action of its own gravity, and the straw bale can be torn and cut at multiple angles, thereby accelerating the speed of unbundling and crushing, and further improving the work efficiency. In addition, the staggered arrangement of the cutter 215 and the vertical roller 213 enables the straw bale to be cut and torn at different positions and angles, thereby achieving multi-angle cutting. This multi-angle cutting can crush the straw bale more thoroughly and improve the crushing efficiency. At the same time, the automatic turning design can also make the straw in the straw bale more evenly dispersed, providing better conditions for the subsequent crushing process.

[0047] In this embodiment, a steel belt 210 is fixedly installed on the outer periphery of the opening edges of both sides of the conveyor belt 209, which can be referred to as Figure 5 The steel belt 1 210 is fixedly mounted on the upper surface of the conveyor belt 209 by a plurality of rivets. The steel belt 212 and the steel belt 3 214 are also fixedly mounted on the upper surface of the conveyor belt 209 by rivets. A plurality of densely arranged wind plates 211 are fixedly mounted on the outer surface of the steel belt 1 210. The height of the wind plates 211 is greater than the height of the fixed knife 106 and the rotary cutter 114. The plurality of wind plates 211 densely arranged on both sides of the conveyor belt 209 can, on the one hand, arrange the straw bales more concentratedly in the middle of the conveyor belt 209, and on the other hand, use the moving wind plates 211 to guide the air in the dust cover 201 to blow from the feed inlet 203 to the discharge pipe, which can assist in blowing the loose and preliminarily crushed straw in the dust cover 201 to the hopper 102 in the double-shaft crusher 1.

[0048] In the present invention, in the traditional biomass combustion particle raw material crushing process, it is usually necessary to manually put the straw bale into the hopper, which not only consumes a lot of manpower, but also has a slow loading speed. The present invention first automatically transports the low-position straw bale to the hopper 102 at the top of the double-axis crusher 1 through the automatic rotation of the conveyor belt 209 in the conveying type unbundling and crushing mechanism 2, without manual intervention, which greatly improves the loading speed, reduces the unloading difficulty of the double-axis crusher 1, and improves the unloading efficiency. In addition, compared with directly putting the straw bale into the hopper 102 of the double-axis crusher 1, the automatic transportation of the straw bale is more labor-saving and reduces the labor intensity. Automatic feeding is one of the key factors to improve production efficiency. The automatic transportation of the conveyor belt 209 can not only reduce the time and labor intensity of manual operation, but also ensure the stability and continuity of feeding. In actual production, the conveyor belt 209 can transport the bales to the hopper 102 of the double-shaft crusher 1 at a stable speed, avoiding the instability and discontinuity in the manual feeding process, which can greatly improve production efficiency and make the production of biomass combustion pellets more efficient and faster. At the same time, automatic feeding can also reduce the impact of human factors on the production process and improve the quality and stability of the product.

[0049] Then, the dust cover 201 and the plurality of baffles 202 in the conveying type unbundling and shredding mechanism 2 are used to limit the position, and the rotating conveyor belt 209 drives the plurality of cutters 215 and the vertical rollers 213 to cut and tear the straw bales or straw clumps restricted by the plurality of baffles 202 in the dust cover 201, which can not only smoothly transport the straw in the dust cover 201, but also limit the amount of grass entering the double-shaft shredder 1, avoid clogging of the hopper 102, and ensure the shredding effect of the double-shaft shredder 1;

[0050] Again, with the help of several cutters 215 and vertical rollers 213 on the conveyor belt 209, in conjunction with the dust cover 201 and multiple baffles 202, the straw bales or straw lumps put into the feed port 203 can be graded, cut and torn, so that the straw in the straw bales can be initially crushed, stirred and dispersed, so as to achieve uniform mixing of the straw raw materials. During the conveying process, the above-mentioned straw bales can be temporarily suspended in the air and rolled down by the vertical rollers 213 and the cutters 215 as well as their own gravity, so as to achieve automatic flipping, thereby tearing and cutting the straw bales at multiple angles, and achieving better crushing effect. In addition, the conveying type unbundling and crushing mechanism 2 can effectively prevent dust generated during unbundling, crushing and tearing of the straw bales through the shielding of the dust cover 201 and the dust cover 3, thereby protecting the working environment.

[0051] At the same time, the present invention sets a conveying type unbundling and crushing mechanism 2 at the front end of the hopper 102 in the double-shaft crusher 1, firstly unbundles, crushes and stirs the whole bale by tearing and cutting, and then crushes it by the double-shaft crusher 1. Compared with the double-shaft crusher 1 directly crushing the whole hard bale, the motor load of the reduction motor 103 is smaller and the operation is more stable. As we all know, the motor is one of the core components of the biomass combustion particle raw material crushing device, and its stable operation is crucial to the overall performance of the equipment. If the motor is overloaded, it will not only affect the crushing efficiency of the equipment, but also have a serious impact on the service life of the motor. The present invention disperses the straw in the bale as much as possible through the cooperation of the cutter 215, the vertical roller 213, the dust cover 201 and the baffle 202, avoiding the large-volume bale directly entering the double-shaft crusher 1 to cause the motor to overload. This design can effectively protect the motor and maintain the stable operation of the equipment. At the same time, the dispersed straw can also be better crushed by the double-shaft crusher 1, thereby improving the crushing efficiency and further ensuring the stable operation of the equipment.

[0052] The raw material crushing device of the biomass combustion particles, when the straw bale enters from the feeding port 203 of the conveying type unbundling and crushing mechanism 2, it is gradually transported upward with the rotation of the conveyor belt 209. In this process, the dust cover 201 provides a relatively closed space for the transportation of the straw bale, avoiding the splashing and scattering of the straw during transportation, and the multiple baffles 202 can be more evenly distributed inside the dust cover 201. Their positions and angles are carefully designed to gradually limit the flow of straw during the transportation of the straw bale. When the upper end of the straw bale abuts against the lower end of the first baffle 202 at the bottom, the baffle 202 will block the continued advancement of the straw bale, so that the straw bale is subject to a certain resistance at this position. At this time, the rotating conveyor belt 209 will drive the multiple steel belts 212 and the multiple steel belts 3 214 to move the straw bale. A plurality of vertical rollers 213 and a plurality of cutters 215 tear and cut the bale from below. In this process, the baffle 202 not only blocks the advancement of the bale, but more importantly, it can limit the volume and shape of the bale, so that after being cut and torn by the cutter 215 and the vertical roller 213, the bale can enter the hopper 102 of the double-shaft crusher 1 in a smaller volume and uniform state, thereby avoiding large-volume bales from directly entering the hopper 102, thereby effectively preventing the hopper 102 from being blocked. If the hopper 102 is blocked, it will not only affect the normal operation of the equipment, but also cause the equipment to stop and increase the maintenance time. The design of the present invention can ensure that the double-shaft crusher 1 can smoothly crush the material, reduce the equipment downtime and maintenance time caused by blockage, and ensure the stable operation of the equipment.

[0053] Embodiment 2:

[0054] like Figure 7As shown, in Embodiment 2, relative to Embodiment 1, a three-stage crushing mechanism is provided in the double-shaft crusher 1;

[0055] The three-stage crushing mechanism is mainly composed of a round roller 113 and a plurality of rotary cutters 114. The plurality of rotary cutters 114 are spirally fixedly mounted on the periphery of the round roller 113. One end of the round roller 113 is rotatably mounted on one side of the discharge pipe 104, and a pulley 112 is coaxially fixedly mounted. A pulley 111 is coaxially fixedly mounted on a rotating roller 109. A transmission belt 110 is extruded and arranged around the periphery of the pulley 111 and the pulley 112, which is mainly used to synchronously connect the rotation of the round roller 113 and the rotating roller 109, so that the round roller 113 and the rotating roller 109 can be crushed. When the double-shaft pulverizer 1 rotates, the synchronous transmission of the pulley 111, the pulley 112 and the transmission belt 110 is used to drive the roller 109 to rotate synchronously. First, it is used to drive the rotary cutter 114 to shear and crush again and stir the biomass particles falling from the upper part to ensure the crushing degree of the discharged particles of the double-shaft pulverizer 1; second, the rotary cutter 114 is similar to the fan blades of the prior art, which can be used to guide the air flow and draw the air in the pulverizing box 101 out of the discharge pipe 104. The flowing air can cool the saw blades 108 in the working state.

[0056] Embodiment 3:

[0057] like Figure 8 As shown, in Example 3 relative to Example 1, a plurality of observation ports 216 are provided on both side end faces of the dust cover 201, and a glass observation window is rotatably installed on one side edge of each observation port 216, mainly for the convenience of the staff to observe the crushing situation inside the dust cover 201, and the other side of the glass observation window is detachably connected to the other side edge of the observation port 216 through a door and window lock, and the glass observation window can be rotatably opened and closed, so that the staff can repair the double-axis crusher 1 through the observation port 216.

[0058] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A raw material pulverizing device for biomass combustion particles, comprising a double-shaft pulverizer (1), wherein a hopper (102) is provided at the top of the double-shaft pulverizer (1), characterized in that: The opening of the hopper (102) in the double-shaft pulverizer (1) is connected to a conveying type de-baling and pulverizing mechanism (2); The conveyor-type unbundling and shredding mechanism (2) comprises a climbing conveyor and a dust cover (201); the lower end opening of the dust cover (201) is obliquely installed above a conveyor belt (209) in the climbing conveyor and is fixedly connected to a bracket (205) in the climbing conveyor; a plurality of cutting knives (215) with their tips facing upward are fixedly installed on the surface of the conveyor belt (209); and a plurality of baffles (202) are fixedly installed on the inner bottom surface of the dust cover (201); A plurality of baffles (202) are installed above the dust cover (201) at equal intervals along the upper surface of the dust cover (201), and the lower ends of the plurality of baffles (202) tilted upward are successively close to the upper surface of the conveyor belt (209); A plurality of steel belts (212) are fixedly mounted on the periphery of the conveyor belt (209), a plurality of vertical rollers (213) are fixedly mounted on the outer surface of the steel belt (212), and the plurality of vertical rollers (213) and the plurality of cutting knives (215) are arranged in a staggered manner; Saw teeth (207) are fixedly connected to the lower edge of the baffle (202).

2. The raw material crushing device for biomass combustion particles according to claim 1 is characterized in that: A plurality of steel belts three (214) are fixedly connected between the lower bottom surfaces of the plurality of cutting knives (215), and the steel belts three (214) are fixedly fitted around and installed on the outer surface of the conveyor belt (209).

3. The raw material crushing device for biomass combustion particles according to claim 1 is characterized in that: A material inlet (203) is provided above the lower end of the dust cover (201), and a material discharge pipe with an opening facing downward is provided below the upper end of the dust cover (201), wherein the opening of the material discharge pipe is provided directly above the hopper (102) in the double-shaft pulverizer (1).

4. The raw material crushing device for biomass combustion particles according to claim 1, characterized in that: Steel belt one (210) is fixedly mounted on the peripheries of the opening edges on both sides of the conveyor belt (209), and a plurality of densely arranged wind plates (211) are fixedly mounted on the outer surface of the steel belt one (210).

5. The raw material crushing device for biomass combustion particles according to claim 1, characterized in that: A protective mesh cover (204) is fixedly mounted on the lower end of the dust cover (201), and the protective mesh cover (204) is arranged below the conveyor belt (209).

6. The raw material crushing device for biomass combustion particles according to claim 3, characterized in that: A dust cover (3) is fixedly mounted on the top of the hopper (102), and a discharge pipe of the dust cover (201) passes downward through the dust cover (3).

7. The raw material crushing device for biomass combustion particles according to claim 1, characterized in that: The blade of the cutting knife (215) is inclined toward the direction in which the conveyor belt (209) rotates.

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