A dustproof material conveying device

Abstract

This utility model discloses a dustproof conveying device, relating to the field of biomass pellet processing technology. It includes a conveyor frame, with a first motor fixedly installed on the outside of the conveyor frame. Two symmetrical conveying rollers are rotatably connected inside the conveyor frame. The output end of the first motor is connected to one end of each conveying roller. A conveyor belt is fitted onto the two conveying rollers, and several sieving holes are evenly distributed on the conveyor belt. This utility model sieves the biomass raw materials through the sieving holes, and the fine particles slide along the inclined surface of the receiving hopper into the conveying pipe. A second motor is started to rotate the auger, conveying the fine particles through the discharge pipe to the discharge end. Simultaneously, the first motor is started to directly convey larger particles to the discharge end via the conveyor belt. By sieving and conveying the biomass raw materials, small particles are prevented from being exposed, thereby reducing dust generation during conveying and ensuring a clean and tidy production environment.

Description

Technical Field

[0001] This utility model relates to the field of biomass pellet processing technology, and more specifically, to a dustproof material conveying device. Background Technology

[0002] Biomass pellets are a type of solid shaped fuel made from agricultural and forestry waste (such as sawdust, straw, rice husks, peanut shells, branches, etc.) through processes such as crushing, drying, mixing, and extrusion molding.

[0003] Existing biomass pellet production lines transport biomass raw materials via conveyor belts. However, since biomass raw materials (such as straw, wood chips, rice husks, etc.) contain a certain amount of fine fibers, debris, and impurities, they will form a large number of small particles after crushing. These small particles are lightweight and have weak adhesion. During the transportation process, they are easily detached from the main body due to vibration and airflow disturbance, forming dust and causing environmental pollution in biomass pellet production. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides a dustproof conveying device to solve the problem that biomass raw materials themselves contain a certain amount of fine fibers, debris and impurities, which will form a large number of small particles after crushing. These small particles are lightweight and have weak adhesion. During the conveying process, they are easily separated from the main body due to vibration and airflow disturbance, forming dust and causing environmental pollution in biomass pellet production.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a dustproof material conveying device, including a conveyor frame, a first motor fixedly installed on the outer side of the conveyor frame, two symmetrical conveying rollers rotatably connected inside the conveyor frame, the output end of the first motor connected to one end of the conveying rollers, a conveyor belt fitted on the two conveying rollers, a plurality of powder screening holes evenly distributed on the conveyor belt, a suspended support plate fixed on the feed end of the conveyor frame above the conveyor belt, a feeding box provided on the suspended support plate, a stirring component provided inside the feeding box, a receiving hopper fixed on the conveyor frame, a powder conveying pipe fixedly connected to the discharge side of the receiving hopper, and the powder conveying pipe also fixedly installed on the outer side of the conveyor frame, a spiral auger rotatably installed on the inner side of the powder conveying pipe, a second motor for driving the spiral auger to rotate installed at one end of the powder conveying pipe, and a discharge pipe connected to the other end.

[0006] Preferably, the receiving hopper is located directly below the feeding box, and the top surface of the receiving hopper is in contact with the top of the inner side of the conveyor belt. The bottom surface of the receiving hopper is inclined, and the top opening of the receiving hopper is greater than or equal to the bottom opening of the feeding box.

[0007] Preferably, the discharge pipe is inclined and corresponds to the discharge end of the conveyor belt.

[0008] Preferably, the agitation assembly includes an agitator shaft and a third motor. The agitator shaft is rotatably mounted inside the feeding box, and the third motor is fixedly mounted outside the feeding box. The output end of the third motor is connected to one end of the agitator shaft, and agitator blades are evenly distributed on the agitator shaft.

[0009] Preferably, the agitation assembly further includes a telescopic drive rod, which is fixedly mounted on the suspended support plate, and the telescopic end of the telescopic drive rod is fixedly connected to the outside of the feeding box.

[0010] Preferably, the stirring blade has an arc-shaped structure.

[0011] Preferably, the receiving hopper is equipped with a negative pressure screening component, which includes a plurality of negative pressure pipes evenly distributed horizontally in the receiving hopper. The conveying frame is also equipped with a negative pressure pump, which is connected to the plurality of negative pressure pipes through a connecting pipe. An intercepting net is provided at the opening of the negative pressure pipe.

[0012] Preferably, the receiving hopper is also rotatably connected to a bushing corresponding to a negative pressure pipe. The bushing is rotatably fitted onto the negative pressure pipe. A scraper is provided in the middle of the bushing. A gear is fixed to one end of the bushing that passes through the conveyor frame and the receiving hopper. A rod rail frame is fixed to the suspended support plate. An L-shaped plate is slidably fitted on the rod rail frame. A rack corresponding to a gear is fixed to the bottom of the L-shaped plate. The gear and the rack mesh. A transverse groove is provided on the L-shaped plate. An eccentric rod is fixed to the other end of the stirring shaft. A cylindrical head is fixed to the eccentric end of the eccentric rod. The cylindrical head can slide along the transverse groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention uses a sieve to screen biomass raw materials. Fine particles slide down the inclined surface of the receiving hopper into the conveying pipe. By starting the second motor, the auger rotates, conveying the fine particles through the discharge pipe to the discharge end. Meanwhile, starting the first motor causes the conveyor belt to directly transport the larger particles to the discharge end. By screening and conveying the biomass raw materials, small particles are prevented from being exposed, thereby reducing dust generation during the conveying process and ensuring a clean and tidy production environment.

[0015] This invention uses a negative pressure pump to generate negative pressure in the negative pressure pipe and connecting pipe. The opening of the negative pressure pipe is aligned with the sieve hole to suck fine particulate raw materials into the receiving hopper, so as to fully screen out particles in the raw materials that are prone to forming dust.

[0016] This invention uses an eccentric rod to drive the cylindrical head to rotate, which in turn cooperates with the transverse groove to drive the L-shaped plate to move vertically up and down along the rod rail frame. At this time, the rack meshes with the gear, driving the bushing to rotate. Simultaneously, the scraper scrapes the fine particles of raw material that are intercepted and attached to the surface of the interception net into the receiving hopper, which can prevent the surface of the interception net from clogging and can fully transport the raw material, reducing waste. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the conveyor frame and feeding box of this utility model;

[0019] Figure 3 This is a schematic diagram of the relevant structures of the receiving hopper, powder conveying pipe and spiral auger of this utility model;

[0020] Figure 4 This is a schematic diagram of the relevant structure of the stirring component and the negative pressure sieving component of this utility model;

[0021] Figure 5 This is a schematic diagram of the relevant structure of the negative pressure powder screening component of this utility model.

[0022] [Figure Labels]

[0023] 1. Conveyor frame; 2. First motor; 3. Conveyor roller; 4. Conveyor belt; 5. Screening hole; 6. Suspended support plate; 7. Feeding box; 8. Receiving hopper; 9. Powder conveying pipe; 10. Spiral auger; 11. Second motor; 12. Discharge pipe; 13. Tumbling assembly; 131. Agitator shaft; 132. Third motor; 133. Tumbling blade; 134. Telescopic drive rod; 14. Negative pressure screening assembly; 141. Negative pressure pipe; 142. Negative pressure pump; 143. Connecting pipe; 144. Interception net; 145. Bushing; 146. Scraper; 147. Gear; 148. Rod rail frame; 149. L-shaped plate; 1410. Rack; 1411. Horizontal groove; 1412. Eccentric rod; 1413. Cylindrical head. Detailed Implementation

[0024] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0025] As attached Figure 1 To be continued Figure 5This utility model provides a dustproof material conveying device, including a conveyor frame 1. A first motor 2 is fixedly installed on the outside of the conveyor frame 1. Two symmetrical conveyor rollers 3 are rotatably connected inside the conveyor frame 1. The output end of the first motor 2 is connected to one end of the conveyor rollers 3. A conveyor belt 4 is fitted on the two conveyor rollers 3. The first motor 2 drives the conveyor rollers 3 to rotate, so that the conveyor belt 4 conveys the biomass raw materials. A plurality of screening holes 5 are evenly distributed on the conveyor belt 4. A suspended support plate 6 is fixed on the feed end of the conveyor frame 1 above the conveyor belt 4. A feeding box 7 is provided on the suspended support plate 6. Raw materials are put into the feeding box 7, and raw materials that are prone to forming dust during the conveying process are screened out through the screening holes 5. A stirring component 1 is provided inside the feeding box 7. 3. The mixing component 13 is used to mix the raw materials to facilitate the screening out of fine particles. A receiving hopper 8 is fixed on the conveyor frame 1. A powder conveying pipe 9 is fixedly connected to the discharge side of the receiving hopper 8. The powder conveying pipe 9 is also fixedly installed on the outside of the conveyor frame 1. A spiral auger 10 is rotatably installed on the inside of the powder conveying pipe 9. A second motor 11 for driving the spiral auger 10 to rotate is installed at one end of the powder conveying pipe 9, and the other end is connected to the discharge pipe 12. The receiving hopper 8 is located directly below the feeding box 7. At the same time, the top surface of the receiving hopper 8 is in contact with the top of the inner side of the conveyor belt 4. The bottom surface of the receiving hopper 8 is inclined. The top opening of the receiving hopper 8 is greater than or equal to the bottom opening of the feeding box 7. The discharge pipe 12 is inclined and corresponds to the discharge end of the conveyor belt 4.

[0026] Specifically, during the conveying process, biomass raw materials are put into the feeding box 7. After being screened through the sieve hole 5, the fine particles fall into the receiving hopper 8 and slide along the inclined surface of the receiving hopper 8 into the conveying pipe 9. By starting the second motor 11, the screw conveyor 10 is rotated, and the fine particles are conveyed through the discharge pipe 12 to the discharge end. Meanwhile, the first motor 2 is started so that the conveyor belt 4 directly conveys the large particles to the discharge end. By screening and conveying the biomass raw materials, the small particles are prevented from being exposed, thereby reducing the amount of dust generated during the conveying process and ensuring a clean and tidy production environment.

[0027] Preferably, the stirring assembly 13 includes a stirring shaft 131 and a third motor 132. The stirring shaft 131 is rotatably installed inside the feeding box 7, and the third motor 132 is fixedly installed outside the feeding box 7. The output end of the third motor 132 is connected to one end of the stirring shaft 131. The stirring blades 133 are evenly distributed on the upper part of the stirring shaft 131, and the stirring blades 133 have an arc-shaped structure.

[0028] Specifically, when conveying raw materials, the stirring shaft 131 can be driven to rotate by the third motor 132, and the stirring blades 133 can slowly stir the raw materials, so that the fine particles in the raw materials can be fully screened out from the sieve holes 5.

[0029] Furthermore, the agitation assembly 13 also includes a telescopic drive rod 134, which is fixedly installed on the suspended support plate 6, and the telescopic end of the telescopic drive rod 134 is fixedly connected to the outside of the feeding box 7.

[0030] Specifically, the bottom of the feeding box 7 can be brought into contact with the conveyor belt 4 by the telescopic drive rod 134, so that the raw material is intercepted in the feeding box 7. After the stirring blade 133 has fully stirred the raw material, the feeding box 7 is lifted and the raw material is transported by the conveyor belt 4. This can further ensure that the fine particles in the raw material are fully screened out, so as to reduce the formation of dust.

[0031] Furthermore, a negative pressure screening component 14 is provided inside the receiving hopper 8. The negative pressure screening component 14 includes several negative pressure pipes 141 that are horizontally and evenly distributed inside the receiving hopper 8. A negative pressure pump 142 is also provided on the conveying frame 1. The negative pressure pump 142 is connected to several negative pressure pipes 141 through a connecting pipe 143. An intercepting net 144 is provided at the opening of the negative pressure pipe 141.

[0032] Specifically, the negative pressure pump 142 can generate negative pressure in the negative pressure pipe 141 and the connecting pipe 143. The opening of the negative pressure pipe 141 is aligned with the sieve hole 5 to suck fine particulate raw materials into the receiving hopper 8, so as to fully screen out particles in the raw materials that are prone to forming dust.

[0033] Furthermore, a bushing 145 corresponding to the negative pressure pipe 141 is rotatably connected inside the receiving hopper 8. The bushing 145 is rotatably fitted onto the negative pressure pipe 141. A scraper 146 is provided in the middle of the bushing 145. A gear 147 is fixed at one end of the bushing 145 that passes through the conveyor frame 1 and the receiving hopper 8. A rod rail frame 148 is fixed on the suspended support plate 6. An L-shaped plate 149 is slidably fitted on the rod rail frame 148. A rack 1410 corresponding to the gear 147 is fixed at the bottom of the L-shaped plate 149. The gear 147 meshes with the rack 1410. A transverse groove 1411 is provided on the L-shaped plate 149. An eccentric rod 1412 is fixed at the other end of the stirring shaft 131. A cylindrical head 1413 is fixed at the eccentric end of the eccentric rod 1412. The cylindrical head 1413 can slide along the transverse groove 1411.

[0034] Specifically, during the screening of biomass raw materials, the rotation of the stirring shaft 131 causes the eccentric rod 1412 to drive the cylindrical head 1413 to rotate, which in turn cooperates with the transverse groove 1411 to drive the L-shaped plate 149 to move vertically up and down along the rod rail frame 148. At this time, the rack 1410 meshes with the gear 147, driving the bushing 145 to rotate. Meanwhile, the scraper 146 scrapes the fine particles of raw material that are intercepted and attached to the surface of the intercepting net 144 into the receiving hopper 8, which can prevent the surface of the intercepting net 144 from clogging and can fully transport the raw materials, reducing waste.

[0035] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0036] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0037] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dustproof material conveying device, comprising a conveyor frame (1), wherein a first motor (2) is fixedly installed on the outer side of the conveyor frame (1), and two symmetrical conveyor rollers (3) are rotatably connected inside the conveyor frame (1), wherein the output end of the first motor (2) is connected to one end of the conveyor rollers (3), and a conveyor belt (4) is fitted on the two conveyor rollers (3), characterized in that, The conveyor belt (4) has several sieve holes (5) evenly distributed on it. The feed end of the conveyor frame (1) is fixed with a suspended support plate (6) located above the conveyor belt (4). The suspended support plate (6) is equipped with a feeding box (7). The feeding box (7) is equipped with a stirring component (13). The conveyor frame (1) is fixed with a receiving hopper (8). The discharge side of the receiving hopper (8) is fixedly connected to a powder conveying pipe (9). At the same time, the powder conveying pipe (9) is also fixedly installed on the outside of the conveyor frame (1). The inner side of the powder conveying pipe (9) is rotatably equipped with a spiral auger (10). One end of the powder conveying pipe (9) is equipped with a second motor (11) for driving the spiral auger (10) to rotate, and the other end is connected to a discharge pipe (12).

2. The dustproof conveying device according to claim 1, characterized in that, The receiving hopper (8) is located directly below the feeding box (7), and the top surface of the receiving hopper (8) is in contact with the top of the inner side of the conveyor belt (4). The bottom surface of the receiving hopper (8) is inclined, and the top opening of the receiving hopper (8) is greater than or equal to the bottom opening of the feeding box (7).

3. The dustproof conveying device according to claim 1, characterized in that, The discharge pipe (12) is inclined and corresponds to the discharge end of the conveyor belt (4).

4. The dustproof conveying device according to claim 1, characterized in that, The stirring assembly (13) includes a stirring shaft (131) and a third motor (132). The stirring shaft (131) is rotatably installed inside the feeding box (7), and the third motor (132) is fixedly installed outside the feeding box (7). The output end of the third motor (132) is connected to one end of the stirring shaft (131), and stirring blades (133) are evenly distributed on the stirring shaft (131).

5. The dustproof conveying device according to claim 4, characterized in that, The stirring assembly (13) also includes a telescopic drive rod (134), which is fixedly installed on the suspended support plate (6), and the telescopic end of the telescopic drive rod (134) is fixedly connected to the outside of the feeding box (7).

6. The dustproof conveying device according to claim 4, characterized in that, The stirring blade (133) has an arc-shaped structure.

7. The dustproof conveying device according to claim 5, characterized in that, The receiving hopper (8) is equipped with a negative pressure screening component (14), which includes several negative pressure pipes (141) evenly distributed horizontally in the receiving hopper (8). The conveying frame (1) is also equipped with a negative pressure pump (142), which is connected to several negative pressure pipes (141) through a connecting pipe (143). An intercepting net (144) is provided at the opening of the negative pressure pipe (141).

8. The dustproof conveying device according to claim 7, characterized in that, The receiving hopper (8) is also rotatably connected to a bushing (145) corresponding to a negative pressure pipe (141). The bushing (145) is rotatably fitted onto the negative pressure pipe (141). A scraper (146) is provided in the middle of the bushing (145). A gear (147) is fixed at one end of the bushing (145) that passes through the conveyor frame (1) and the receiving hopper (8). A rod rail frame (148) is fixed on the suspended support plate (6). An L-shaped plate (147) is slidably fitted on the rod rail frame (148). 49) The bottom of the L-shaped plate (149) is fixed with a rack (1410) corresponding to the gear (147) one by one. The gear (147) meshes with the rack (1410). A transverse groove (1411) is provided on the L-shaped plate (149). An eccentric rod (1412) is fixed at the other end of the stirring shaft (131). A cylindrical head (1413) is fixed at the eccentric end of the eccentric rod (1412). The cylindrical head (1413) can slide along the transverse groove (1411).

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