A biomass energy raw material compression molding production unit

Abstract

The present application discloses a biomass raw material compression molding production unit, including: a first conveyor, used to convey the biomass raw material to the biomass raw material feed hopper of the shredder and pulverizer; the shredder and pulverizer, used to shred and pulverize the biomass raw material into biomass fragments; a centrifugal fan, used to convey part or all of the biomass fragments to the shredder, wherein the biomass fragments not input into the shredder are directly conveyed to the biomass raw material molding equipment; the shredder, used to perform dust removal on the biomass fragments and further convey the biomass fragments to the biomass raw material molding equipment; the biomass raw material molding equipment, which extrude and mold the biomass fragments. The present application combines the shredder and pulverizer, the shredder and the biomass raw material molding equipment through structural optimization, so as to obtain clean, standard module biomass raw material compression molding packages, solve the problems of biomass raw material collection, transportation and storage, and realize the standardization of biomass raw materials.

Description

Technical Field

[0001] The invention belongs to the technical field of material crushing and molding, and specifically relates to a biomass energy raw material compression molding production unit. Background Art

[0002] Biomass raw materials have a high moisture content when they are collected. In the traditional mode, when a large amount of biomass raw materials are piled together, air cannot circulate and anaerobic fermentation begins. At the same time, the internal temperature continues to rise, and the pile needs to be turned over continuously. In such an environment, the biomass raw materials are seriously moldy, resulting in a large loss of the calorific value of the biomass raw materials during storage. After long-term stacking, the calorific value is even less than half of the original.

[0003] The bulk density of biomass raw materials is very small, and a large amount of storage requires a very large site. The conditions of biomass raw materials growing areas are relatively complex, and it is impossible to achieve deep processing such as granulation on site. The cost of direct long-distance transportation is very high. If the raw materials are processed in bulk and then transported to nearby factories for granulation, the cost will double. Therefore, the market circulation cost of biomass raw materials is very high, which seriously restricts the development of biomass energy industrialization.

[0004] Therefore, how to form biomass raw materials into a dense shape that is easy to stack is a problem to be solved. The existing technology usually only has a single shredder or crusher, which is unable to process biomass raw materials into a dense shape that is easy to stack, and common straw balers are unable to bale other woody biomass raw materials into shape.

[0005] Moreover, biomass raw materials are usually mixed with a lot of dust and dirt, which are not conducive to the utilization of biomass raw materials, for example, affecting their combustion efficiency. How to obtain cleaner biomass raw material briquettes is also a problem to be solved.

[0006] In view of this, it is necessary to develop a device that can tear and crush and compress raw materials in one, so as to obtain clean, standard module biomass raw material compression packages. Summary of the invention

[0007] In order to solve the above problems, the present application provides a biomass raw material compression molding production unit, comprising:

[0008] The first conveyor is used to convey the biomass raw materials to the feed hopper of the shredder;

[0009] The shredder and crusher is used to shred and crush the biomass raw materials into biomass scraps;

[0010] A centrifugal fan is used to transport part or all of the biomass fragments to the Shaker, wherein the biomass fragments not input into the Shaker are directly transported to the biomass raw material compression molding equipment as clean biomass fragments;

[0011] Shaklong is used to remove dust from biomass fragments, and transport the clean biomass fragments to the biomass raw material molding equipment through the third conveyor;

[0012] Biomass raw material molding equipment is used to compress and mold clean biomass fragments.

[0013] Optionally, in the case where the centrifugal fan transports the biomass crushed material part to Shaklong, the method includes:

[0014] The discharge bin of the shredder is connected to the feed port of the second conveyor, and the discharge port of the second conveyor is located above the feed port of the biomass raw material forming equipment, so that the biomass crushed materials are transported to the biomass raw material forming equipment.

[0015] In addition, a suction port is provided at the upper end of the discharge port of the second conveyor, and the suction port is connected with the feed port of the shaken through a suction pipeline. The shaken is also connected with the suction port of the centrifugal fan. The centrifugal fan is arranged between the suction port and the shaken, and the dust and part of the biomass fragments at the discharge port of the second conveyor are sucked into the shaken through the suction action of the centrifugal fan, and the dust in the biomass fragments enters the bag dust collector from the air outlet of the shaken, and the clean biomass fragments with the dust removed are transported to the feed port of the biomass raw material molding equipment through the third conveyor.

[0016] Optionally, the suction port is connected to the suction pipeline through a vertically arranged conical transition cabin, and the conical transition cabin is a hollow cylinder with a large middle and small ends.

[0017] Optionally, in the case where the centrifugal fan transports all the biomass fragments to Shaklong, the method includes:

[0018] The discharge bin of the shredder is connected to the air inlet of the centrifugal fan through a pipeline. The biomass fragments are sucked in from the air inlet of the centrifugal fan through the centrifugal fan, and are transported to the shaker from the air outlet of the centrifugal fan through the pipeline. The dust in the shaker enters the bag dust collector from the air outlet of the shaker, and the clean biomass fragments with dust removed are transported to the feed inlet of the biomass raw material molding equipment through the third conveyor.

[0019] Optionally, the biomass raw material forming equipment includes:

[0020] The forming unit comprises a forming cylinder and a pusher head. The upper end of the side wall of the forming cylinder is connected to the discharge hopper of the shredding device. The pusher head is axially slidably connected in the forming cylinder. The pusher head is driven by the driving unit to push the shredded material in the forming cylinder to be extruded into forming material.

[0021] The cutting knife is arranged at a set distance outside the discharge port of the forming cylinder, and is used to cut the forming material into biomass raw material compression molding packages of set length after the pushing head pushes the forming material out of the forming cylinder.

[0022] Optionally, the driving unit is a hydraulic control system, including a motor, a hydraulic pump, a reversing valve and a hydraulic cylinder. The outer side of the push head is connected to the piston rod of the hydraulic cylinder. The rodless chamber of the hydraulic cylinder is connected to the hydraulic oil tank through a one-way valve. A filter is installed on the pipeline from the reversing valve to the hydraulic oil tank.

[0023] Optionally, a plurality of oil cylinders are provided at different positions outside the discharge port of the forming cylinder to extrude the material in multiple directions.

[0024] Optionally, the multiple cylinders refer to three hydraulic cylinders, one pushing cylinder is coaxially arranged with the forming cylinder and connected to the pushing head, and is used to push and extrude the material falling into the forming cylinder along the length direction of the forming cylinder, and a baffle is arranged at the outlet of the forming cylinder, and the material pushed out of the forming cylinder is blocked by the baffle, and the other two hydraulic cylinders are arranged above the forming cylinder and at the horizontal outlet, one is arranged above the forming cylinder as the main pressure cylinder, and extrude the forming material downward, and the other is arranged in the horizontal direction parallel to the discharge port as the discharge cylinder, and further extrude the forming material from the horizontal direction and push the material out.

[0025] Optionally, the biomass raw material forming equipment includes:

[0026] The drive unit, usually a motor and a reducer, provides sufficient torque according to the size of different raw materials and forming packages / blocks, and is connected to the screw mounting base;

[0027] The molding unit comprises a molding barrel and a molding screw, wherein the molding screw is mounted on a screw base and arranged in the molding barrel, and the shredded material is squeezed into molding material during the spiral rotation of the molding screw;

[0028] The cutting knife is arranged at a set distance outside the discharge port of the forming cylinder, and is used to cut the forming material into biomass raw material compression molding packages of set length after the forming screw pushes the forming material out of the forming cylinder.

[0029] Optionally, the molding cylinder includes a compression zone, a molding zone and a shape-keeping zone connected in sequence, the compression zone is in a tapered shape that gradually decreases along the pushing direction, the inner diameter of the molding zone is the same as the tapered small diameter end of the compression zone, and the shape-keeping zone is 2-20 mm larger than the inner diameter of the molding zone. However, it is suitable for a one-way compression molding structure, not for multiple hydraulic cylinders.

[0030] Compared with the prior art, this application has the following beneficial effects:

[0031] (1) Through the design of the biomass raw material compression molding production unit of the present application, the shredder, the shakron and the biomass raw material molding equipment are combined through structural optimization to obtain cleaner biomass raw material compression molding packages, thereby achieving the standardization of clean biomass raw materials.

[0032] (2) The second conveyor feeding channel, the centrifugal fan suction pipeline and the second conveyor discharge port form a three-way structure design. The centrifugal fan using this method has a smaller power, which reduces energy consumption and reduces the blade wear of the centrifuge. It solves the problem of blockage of the Shaklong discharge channel due to excessive length of raw material debris, realizes continuous production and stable operation of the production line, and further improves production efficiency. It also saves site space and makes the overall integration of the production line unit higher.

[0033] (3) The design of the biomass raw material compression molding production unit of the present application not only solves the problem of shredding, crushing and briquetting of materials with high or low moisture content, but also meets the conditions for the next step of transportation and storage of biomass raw materials. At the same time, the increased density also greatly reduces the transportation cost of biomass raw materials, thereby helping to realize the true commercial circulation of biomass raw materials.

[0034] (4) The present application can shred and extrude the raw materials to form biomass raw material compression packages. The biomass raw material compression packages can be easily stored by stacking. Ventilation channels are left between the stacks to prevent heat, mildew and calorific value loss caused by the accumulation of biomass raw materials.

[0035] (5) The compressed biomass raw material packages can be directly fed into the biomass combustion furnace for use as fuel. Compared with the high cost of biomass pellet fuel, the compressed biomass raw material packages can prevent the heat, mildew and calorific value loss caused by the accumulation of biomass raw materials during storage, which greatly reduces the cost of the combustion furnace and is conducive to promoting the market application of biomass resources.

[0036] (6) The compressed biomass raw materials can be directly sent to the biomass power plant. After the biomass raw materials are standardized, the original biomass raw materials stacking method is changed, which can be better for long-term storage, reduce the loss of calorific value, and improve the power generation efficiency of biomass raw materials.

[0037] (7) The multi-cylinder compaction molding method can be used to compress the biomass raw materials into packages, further compact them, and store them in a smaller space, further reducing transportation costs.

[0038] (8) The material passes through the compression zone, molding zone and shape-keeping zone of the molding cylinder in sequence, and the material is compressed by the effect of the tapered compression zone gradually shrinking, and the material is further compressed by the resistance between the material and the side wall in the molding zone. The shape-keeping zone, whose inner diameter is slightly larger than that of the molding zone, can not only keep the molded material slightly expanded within the control range, but also keep it in a complete form of biomass raw material compression molding package, and also make the compressed material easy to be pushed forward by the pusher. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a schematic diagram of a biomass energy raw material compression molding production unit according to an embodiment of the present invention.

[0040] Figure 2 It is a schematic diagram of the second structure described in an embodiment of the present invention.

[0041] Figure 3 It is a front view of the biomass raw material molding equipment described in an embodiment of the present invention.

[0042] Figure 4 It is a schematic diagram of the forming tube described in an embodiment of the present invention.

[0043] Figure 5 It is a front view of the multi-cylinder compactly formed hydraulic cylinder arrangement according to an embodiment of the present invention.

[0044] Figure 6 This is a top view of the multi-cylinder compactly formed hydraulic cylinder arrangement according to an embodiment of the present invention.

[0045] Reference numerals:

[0046] The first conveyor 1, the shredder 2, the shaker 3, the bag dust collector 4, the biomass raw material molding equipment 5, the centrifugal fan 6, the discharger 7, the third conveyor 8, the second conveyor 21, the suction port 211, the conical transition cabin 23, the biomass raw material compression molding package 30, the discharge hopper 106, the hydraulic cylinder 301, the reversing valve 302, the filter 303, the hydraulic pump 304, the molding cylinder 401, the pusher 402, the cutting knife 403, the compression area 4011, the molding area 4012, the mold retention area 4013, the biomass raw material compression molding package, the conveyor 40, the pusher cylinder 4014, the baffle 4015, the main pressure cylinder 4016, and the discharge cylinder 4017. DETAILED DESCRIPTION

[0047] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] The biomass raw material compression molding production unit of the present application includes a first conveyor 1, which is used to convey the biomass raw material to the biomass raw material feed hopper of the shredder and crusher 2; the shredder and crusher 2 is used to shred and crush the biomass raw material into biomass fragments; a centrifugal fan 6 is used to convey the biomass fragments to the shaker 3; the shaker 3 is used to remove dust from the biomass fragments and convey the clean biomass fragments to the biomass raw material molding equipment 5 via the third conveyor 8; the biomass raw material molding equipment 5 is used to extrude the clean biomass fragments into biomass raw material compression molding packages. It should be noted that "package" is only a way of expressing compression molding, and it can also be other forms of expression, such as "block".

[0049] The first conveyor 1 is composed of a motor, a reducer, a sprocket, a chain, a chain plate, a bracket and other components, and has a strong carrying capacity and conveying capacity, and can meet the conveying of different raw materials, such as branches, trunks, roots, straw bales, building templates, furniture and industrial wood products. The first conveyor 1 includes a horizontal conveying section and an inclined conveying section connected in sequence, and the port of the inclined conveying section is located at the upper end of the feed hopper of the biomass raw material of the shredder 2. The horizontal conveying section is used to place the biomass raw material, and through the operation of the conveyor, the biomass raw material is transported from the horizontal conveying section to the inclined conveying section, and further transported to the feed hopper of the biomass raw material of the shredder 2.

[0050] Among them, the shredder and pulverizer 2 includes a shredder located at the top and a pulverizer located at the bottom. The shredder is used to tear the material into pieces of a certain size, and the pulverizer is used to further crush the pieces output by the shredder into smaller pieces. The shredder and the pulverizer are arranged up and down, and the shredder can naturally fall to the pulverizer for pulverization after the material is torn into pieces, reducing the intermediate material transmission structure, so that the shredder can realize the material pulverization function in the gap time during the feeding process. The shredder and pulverizer 2 uses two double-axle extension motors to realize the material pulverization function in the gap space of the shredder during the feeding process, maximizes the use of the output power of the motor, and thus achieves the purpose of energy saving and consumption reduction. The structure of the shredder and pulverizer 2 is the same as that disclosed in the patent application number 202410365492.8, and will not be described in detail here. The biomass raw material transported in the first conveyor 1 is transported to its feed hopper, and the biomass fragments can be output from the discharge bin of the shredder and pulverizer by operating the shredder and pulverizer 2.

[0051] The discharge bin of the shredder can remove dust from the biomass fragments through a shaker, and then transport them to the biomass raw material molding equipment 5, where they are extruded to form biomass raw material compression molding packages (the first structure). Clean biomass fragments can also be input into the biomass raw material molding equipment 5, and the dusty biomass fragments can be transported to the shaker by the centrifugal fan 6 for processing and then input into the biomass raw material molding equipment 5, where they are extruded to form biomass raw material compression molding packages (the second structure).

[0052] The two structures are described below respectively.

[0053] The first structure, such as Figure 1 As shown, the dust is removed by the Shaker and then transported to the biomass raw material forming equipment 5, that is, the discharge bin of the shredder is connected to the air inlet of the centrifugal fan 6 through a pipeline, and the suction force formed by the high-speed rotation of the impeller of the centrifugal fan 6 sucks the biomass fragments from the air inlet of the centrifugal fan, and is transported out from the air outlet of the centrifugal fan through the pipeline, and the biomass fragments are transported to the Shaker 3 by the centrifugal fan 6. Shaker 3 (cyclone dust collector) performs cyclone separation on the dusty biomass fragments. Shaker 3 uses the process of the fan airflow rotation to generate centrifugal force, thereby separating the biomass dust from the dust of the mixed biomass fragments. The gas containing dusty biomass fragments passes through the air inlet of the Shaker 3, enters the Shaker 3 along the tangent direction, and begins to rotate. During the rotation of the airflow, the biomass fragments are thrown toward the outer wall under the action of centrifugal force. The biomass fragments that reach the outer wall enter the discharger 7 along the conical wall of the Shaker 3 under the combined action of the rotating airflow and gravity as clean biomass fragments. The clean biomass fragments enter the third conveyor 8 through the discharger 7. The dust enters the bag filter 4 from the air outlet of the Shaker, and is dusted by the bag filter 4.

[0054] The structure of the third conveyor 8 can be the same or similar to that of the first conveyor 1, and also includes a horizontal conveying section and an inclined conveying section. The port of the inclined conveying section is connected to the feed hopper located at the biomass raw material molding equipment 5, and the biomass raw material molding equipment 5 extrude and mold the clean biomass fragments.

[0055] In the second structure, the clean biomass fragments are fed into the biomass raw material forming device 5 by the second conveyor 21, and the dusty biomass fragments are processed by the Shakeron and then fed into the biomass raw material forming device 5, and the biomass raw material is compressed and formed into a package. Figure 2 As shown, the discharge bin of the shredder can be connected to the feed port of the second conveyor 21, and the discharge port of the second conveyor 21 is located above the feed port of the biomass raw material forming equipment 5, so that the biomass fragments obtained by shredding can be transferred to the biomass raw material forming equipment 5.

[0056] In addition, a suction port 211 is provided at the upper end of the discharge port of the second conveyor, and the suction port 211 is connected to the centrifugal fan 6 through a suction pipeline. The outlet of the centrifugal fan 6 is connected to the feed port of the shaker 3. Through the suction effect of the centrifugal fan 6, the dust at the discharge port of the second conveyor 21 mixed with some biomass fragments can be brought into the shaker 6, and the dust in the shaker 3 enters the bag dust collector 4 from the air outlet of the shaker, and the clean biomass fragments with the dust removed are transported to the feed port of the biomass raw material molding equipment 5 through the third conveyor 8.

[0057] Therefore, the feeding channel of the second conveyor 21, the centrifugal fan suction pipeline and the second conveyor discharge port form a three-way structure design. The suction force of the centrifugal fan 6 using this method is smaller than that of the above, which is about 10-30% of the power of the above centrifugal fan. This design not only reduces the power of the centrifugal fan, reduces energy consumption, reduces the blade wear of the centrifugal separator, and the blockage of the Shaklong unloading channel due to excessive length of raw material fragments, but also realizes the continuous production and stable operation of the production line, and further improves the production efficiency; it also saves site space and makes the overall integration of the production line unit higher.

[0058] In addition, the suction port 211 is connected to the suction pipeline through a conical transition chamber. Specifically, the lower opening of the conical transition chamber 23 is connected to the suction port 211, and the upper opening of the conical transition chamber is connected to the suction pipeline. The conical transition chamber is a hollow cylinder with a large middle and small ends. This design avoids sucking a large amount of biomass fragments into the centrifugal fan, reduces the wear on the fan blades, and also reduces the power of the centrifugal fan and reduces energy consumption.

[0059] The biomass raw material molding device 5 includes a driving unit and a molding unit. The molding unit pushes the shredded material in the molding cylinder through a pusher head to squeeze the shredded material into a dense block. The molding unit includes a molding cylinder 401 and a pusher head 402. The molding cylinder 401 can be a square cylinder, and its upper end is used to receive biomass fragments. The shredded biomass fragments fall into the molding cylinder 401. The shape of the molding cylinder is not limited to a square cylinder, and can also be, for example, a cylindrical, polygonal, or irregular shape.

[0060] A pusher head 402 is connected to one end of the molding cylinder. The pusher head 402 is slidably connected in the molding cylinder and is driven by a driving unit to move in the molding cylinder. Figure 4 The forming cylinder 401 includes a compression zone 4011, a forming zone 4012 and a shape-retaining zone 4013 which are connected in sequence. The compression zone 4011 is a tapered shape which gradually decreases along the pushing direction. The inner diameter of the forming zone is the same as the tapered small diameter end of the compression zone. The shape-retaining zone is slightly larger than the inner diameter of the forming zone (see Figure 4013).

[0061] The pusher 402 pushes the shredded material to pass through the compression zone 4011 first, and the shredded material is pushed to move toward the small diameter end. As the space gradually shrinks, the shredded material is initially compressed. Then the pusher 402 pushes the material into the molding zone, and the material is further compressed into molding material under the action of the molding zone and the side wall resistance. The molding material enters the shape-keeping zone 4013, and after the molded material is slightly expanded within the control range, it is still a complete biomass raw material compression molding bag.

[0062] Please refer to Figure 3 The driving unit may be a hydraulic control system, including a hydraulic cylinder 301, the outer side of the pusher head 402 is connected to the piston rod of the hydraulic cylinder 301, the inner side of the pusher head 402 is used to contact the shredded material, and the piston rod of the hydraulic cylinder can drive the pusher head 402 to move in the molding cylinder, thereby pushing the shredded material to move to the other end of the molding cylinder. The material in the molding cylinder generates resistance by friction with the cylinder wall of the molding cylinder, squeezing the loose shredded material into a molding material with a higher density, and forming a biomass raw material compression molding package that can be easily transported and stored by cutting.

[0063] The driving unit further includes a reversing valve 302 and a hydraulic pump 304. The reversing valve 302 may be an electromagnetic reversing valve connected to the hydraulic cylinder 301, and the hydraulic pump 304 is connected to the reversing valve 302.

[0064] In some embodiments, the rodless chamber of the hydraulic cylinder 301 is connected to the hydraulic oil tank through a one-way valve to control the maximum thrust of the piston rod.

[0065] In addition, a filter 303 is installed on the pipeline of the reversing valve 302 returning oil to the hydraulic oil tank, which can filter out pollutants such as metal particles generated by component wear in the hydraulic system and rubber impurities caused by seal wear, so as to keep the oil returning to the oil tank clean.

[0066] Furthermore, the molding equipment 5 also includes a cutting knife 403, which is arranged at a certain distance from the other end of the molding cylinder. When the push head 402 pushes the molding material out of the molding cylinder to reach a set length, the cutting knife 403 cuts the molding material into standard biomass raw material compression molding packages 30 and drops them onto the conveyor 40.

[0067] In the past, biomass raw materials had high moisture content when they were collected. When a large amount of biomass raw materials were piled together in the traditional mode, anaerobic fermentation began when air could not circulate. At the same time, the internal temperature continued to rise, and the pile needed to be turned over continuously. In such an environment, the internal mold of the biomass raw materials was serious, resulting in a significant reduction in the calorific value of the biomass raw materials during storage. After long-term stacking, the calorific value was even less than half of the original. The biomass energy raw material compression molding package obtained in this application can be stacked and stacked, and ventilation lanes are left between the stacks to prevent the problems of heating, mildew and calorific value loss caused by the accumulation of biomass raw materials.

[0068] The particle size of biomass raw material compression molding package is different from that of pelletizer by an order of magnitude. The particle diameter of biomass pellet molding machine is 5-30mm and the length is about 10-50mm; while the biomass raw material compression molding package can be 1 meter square or 2 cubic meters in volume. The biomass raw material compression molding package can be directly fed into the biomass raw material combustion furnace for use as fuel. Compared with biomass pellet fuel, the cost of biomass raw material compression molding package is greatly reduced, which is conducive to promoting the market application of biomass resources.

[0069] The compressed packages of biomass raw materials can be directly sent to the biomass power plant. After the biomass raw materials are standardized, the original stacking method of biomass raw materials can be changed, which can better enable long-term storage, reduce the loss of calorific value, and improve the power generation efficiency of biomass raw materials. At the same time, the increased density also greatly reduces the transportation cost of biomass raw materials.

[0070] In some embodiments, multi-cylinder compacting technology can be used, please refer to Figure 5 , Figure 6 , multiple cylinders are arranged at different positions of the forming cylinder, and the material can be extruded in multiple directions to form a more dense molding material. Exemplarily, three hydraulic cylinders are used, and a push cylinder 4014 is coaxially arranged with the forming cylinder and connected to the push head, which is used to push and extrude the material falling into the forming cylinder along the length direction of the forming cylinder. A baffle 4015 is arranged at the outlet of the forming cylinder, and the molding material coming out of the forming cylinder is blocked by the baffle 4015 (of course, there is also support below). The other two hydraulic cylinders are arranged at the outlet of the forming cylinder, one as the main pressure cylinder 4016, which is arranged above the forming cylinder to extrude the molding material downward. One is arranged as a discharge cylinder 4017 in a horizontal direction parallel to the baffle 4015, which further extrude the molding material from the horizontal direction and push the material onto the conveyor.

[0071] In addition, the molding unit can also push the clean biomass fragments through the screw rotating in the molding barrel, so as to extrude the clean biomass fragments into molding materials.

[0072] The following is an explanation of the working process of the biomass raw material compression molding production unit (using the first structure):

[0073] The biomass raw materials are delivered to the first conveyor 1 by a manipulator or a loader, and then delivered to the shredder 2 by the first conveyor 1 for processing to obtain biomass fragments. The biomass fragments are transmitted to the shredder 3 by the centrifugal fan 6 for cyclone separation, and the dust-containing part is subjected to dust reduction treatment by the bag dust collector 4. The clean biomass fragments are separated and unloaded to the third conveyor 8 by the unloader 7, and further delivered to the biomass raw material molding equipment, and then pressed into standard biomass energy raw material compression molding packages by the biomass raw material molding equipment with one or more cylinders operating continuously.

[0074] The workflow of the second structure is as follows: the biomass raw material is delivered to the first conveyor 1 by a manipulator or a loader, and is delivered to the shredder 2 by the first conveyor 1 for processing to obtain biomass fragments, and the biomass fragments are delivered to the biomass raw material molding equipment through the second conveyor 21, and the centrifugal fan 6 sucks the dust mixed with some biomass fragments at the discharge port of the second conveyor 21 into the shakron 3 through suction, and the dust in the shakron 3 enters the bag filter 4 from the air outlet of the shakron, and the clean biomass fragments with dust removed are delivered to the feed port of the biomass raw material molding equipment 5 through the third conveyor 8. Then, the biomass raw material molding equipment with one or more cylinders operating continuously is pressed into a standard biomass energy raw material compression molding package.

[0075] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and deformations according to the present invention, but these corresponding changes and deformations shall fall within the protection scope of the claims of the present invention.

Claims

1. A biomass raw material compression molding production unit, characterized in that: include: A first conveyor is used to convey the biomass raw material to the biomass raw material feed hopper of the shredder; The shredder is used to shred and crush the biomass raw materials into biomass scraps; A centrifugal fan is used to transport part or all of the biomass crushed materials to the Shaker, wherein the biomass crushed materials not input into the Shaker are directly transported to the biomass raw material forming equipment; Shakron is used to remove dust from biomass fragments and transport the removed biomass fragments to biomass raw material forming equipment; Biomass raw material molding equipment is used for extruding biomass fragments.

2. The biomass raw material compression molding production unit according to claim 1 is characterized in that: In the case where the centrifugal fan transports the biomass fragments to Shaklon, the method includes: The discharge bin of the shredder is connected to the feed port of the second conveyor, and the discharge port of the second conveyor is located above the feed port of the biomass raw material molding equipment, so that part of the biomass fragments are directly transported to the feed port of the biomass raw material molding equipment as clean biomass fragments. In addition, a suction port is provided at the upper end of the discharge port of the second conveyor, and the suction port is connected with the suction port of the centrifugal fan through a suction pipe. The centrifugal fan is also connected to the shaker. The dust-mixed biomass fragments at the discharge port of the second conveyor are sucked into the shaker through the suction action of the centrifugal fan. Under the action of centrifugal force, the dust in the shaker enters the dust collector from the air outlet of the shaker, and the clean biomass fragments with the dust removed are transported to the feed port of the biomass raw material molding equipment through the third conveyor.

3. The biomass raw material compression molding production unit according to claim 2 is characterized in that: The suction port is connected to the suction pipeline through a vertically arranged conical transition chamber, and the conical transition chamber is a hollow cylinder with a large middle and small ends.

4. The biomass raw material compression molding production unit according to claim 1, characterized in that: The case where the centrifugal fan transports all the biomass fragments to Shaklon includes: The discharge bin of the shredder is connected to the air inlet of the centrifugal fan through a pipeline. The biomass fragments are sucked in from the air inlet of the centrifugal fan through the centrifugal fan, and are transported to the shaker from the air outlet of the centrifugal fan through the pipeline. The dust in the biomass fragments enters the dust collector from the air outlet of the shaker, and the clean biomass fragments with dust removed are transported to the feed inlet of the biomass raw material molding equipment through the third conveyor.

5. The biomass raw material compression molding production unit according to claim 1, characterized in that: The biomass raw material molding equipment comprises: The forming unit comprises a forming cylinder and a pusher head. The upper end of the side wall of the forming cylinder is connected to the discharge hopper of the shredding device. The pusher head is axially slidably connected in the forming cylinder. The pusher head is driven by the driving unit to push the shredded material in the forming cylinder to be extruded into forming material. The cutting knife is arranged at a set distance outside the discharge port of the forming cylinder, and is used to cut the forming material into biomass raw material forming packages of set length after the pushing head pushes the forming material out of the forming cylinder.

6. The biomass raw material compression molding production unit according to claim 5, characterized in that: The driving unit is a hydraulic control system, including a motor, a hydraulic pump, a reversing valve and a hydraulic cylinder. The outer side of the push head is connected to the piston rod of the hydraulic cylinder. The rodless chamber of the hydraulic cylinder is connected to the hydraulic oil tank through a one-way valve. A filter is installed on the pipeline from the reversing valve to the hydraulic oil tank.

7. The biomass raw material compression molding production unit according to claim 5, characterized in that: A plurality of oil cylinders are arranged at different positions outside the discharge port of the forming cylinder to compress and extrude the material in multiple directions.

8. The biomass raw material compression molding production unit according to claim 7, characterized in that: The multiple cylinders refer to the use of three hydraulic cylinders, one pushing cylinder is coaxially arranged with the forming cylinder and connected to the pushing head, and is used to push and extrude the material falling into the forming cylinder along the length direction of the forming cylinder. A baffle is arranged at the outlet of the forming cylinder, and the material pushed out of the forming cylinder is blocked by the baffle. The other two hydraulic cylinders are arranged above the forming cylinder and at the horizontal outlet. One is arranged above the forming cylinder as the main pressure cylinder to extrude the forming material downward, and the other is arranged in the horizontal direction of the discharge port as the discharge cylinder to further extrude the forming material from the horizontal direction and push the material out.

9. The biomass raw material compression molding production unit according to claim 1, characterized in that: The biomass raw material forming equipment comprises: The drive unit, motor and reducer provide torsion according to the size of different raw materials and molding bags, and are connected to the screw mounting base; The molding unit comprises a molding barrel and a molding screw, wherein the molding screw is mounted on a screw base and arranged in the molding barrel, and the shredded biomass fragments are squeezed into molding materials during the spiral rotation of the molding screw; The cutting knife is arranged at a set distance outside the discharge port of the forming cylinder, and is used to cut the forming material into biomass raw material compression molding packages of set length after the forming screw pushes the forming material out of the forming cylinder.

10. The biomass raw material compression molding production unit according to claim 5 or 9, characterized in that: The forming cylinder includes a compression zone, a forming zone and a shape-keeping zone connected in sequence. The compression zone is a tapered shape that gradually decreases along the pushing direction. The inner diameter of the forming zone is the same as the tapered small diameter end of the compression zone. The shape-keeping zone is 2-20 mm larger than the inner diameter of the forming zone.

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