Wood barbecue charcoal raw material crushing and screening device

Abstract

The utility model relates to the technical field of the crushing screening device, especially to a wooden barbecue charcoal raw material crushing screening device, including the crushing cylinder of installation in the beam frame top, the crushing cylinder includes the cylinder that fixed in the beam frame top, the cylinder top buckle cover installs the apron, the apron top right side installs the feed hopper, the cylinder inner wall bottom end installs the hole net guide plate, the cylinder bottom end is connected with the scrap discharge gate, the apron top installs the variable speed drive device, the cylinder inside suspension installs the crushing part, and the crushing part below is provided with the grinding part. The utility model integrates crushing, grinding and screening function in the same device, realizes the one -time crushing and screening of raw material through the collaborative work of crushing part, grinding part and hole net guide plate, avoids the additional conveying device and factory space needed in the traditional process of multiple equipment series connection, significantly reduces the equipment investment cost and production line floor area.

Description

Technical Field

[0001] This utility model relates to the technical field of crushing and screening devices, and in particular to a crushing and screening device for wood-based barbecue charcoal raw materials. Background Technology

[0002] As a common recreational fuel, the combustion performance, ignition difficulty, and burning time of barbecue charcoal are closely related to the particle size of the raw materials. Ideal barbecue charcoal requires that the raw materials be crushed into uniform and moderate particle size. If the particle size is too large, the charcoal blank will have a loose and brittle structure, making it difficult to ignite and resulting in unstable combustion. If the particle size is too fine, the forming density will be too high, reducing the porosity inside the charcoal blank, leading to poor air permeability, incomplete combustion, and easy generation of smoke and dust.

[0003] Currently, the pretreatment of raw materials in the production of wood-based barbecue charcoal mainly relies on traditional crushing and screening equipment. This equipment typically consists of two separate machines: a hammer mill for initial coarse crushing, followed by screening of the crushed material through a drum screen or vibrating screen. Material of the acceptable particle size is sent for further processing, while larger, unacceptable particles need to be returned to the crusher for secondary or even multiple crushing operations. This process requires separate installation of crushing and screening equipment, connected by conveyors, leading to extended production lines, increased equipment investment, and increased factory floor space. Furthermore, the crushing mechanism of traditional equipment is relatively simple, relying solely on hammer mills for inefficient crushing, failing to efficiently crush wood raw materials to the required fineness, resulting in low production efficiency. Therefore, a wood-based barbecue charcoal raw material crushing and screening device is needed to solve these problems. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A wood-based barbecue charcoal raw material crushing and screening device includes a crushing cylinder installed at the top of a beam frame. The crushing cylinder includes a cylinder body fixed at the top of the beam frame. A cover plate is installed on the top of the cylinder body. A feed hopper is installed on the right side of the top of the cover plate. A perforated mesh guide plate is installed at the bottom of the inner wall of the cylinder body. A debris discharge port is connected to the bottom of the cylinder body. A speed-changing drive device is installed on the top of the cover plate. A crushing section is suspended inside the cylinder body, and a grinding section is arranged below the crushing section.

[0006] Preferably, the speed-changing drive device consists of a gear set, a motor end, and a housing. The crushing part includes a rotating shaft that is fixedly connected to the gear shaft end of the speed-changing drive device. A blade holder is installed at the bottom of the outer surface of the rotating shaft. An upper blade, a straight blade, and a lower blade are sequentially connected around the surface of the blade holder from top to bottom.

[0007] Preferably, the upper blade has an upward-sloping cutting edge and the lower blade has a downward-sloping cutting edge. The upward-sloping design of the upper blade and the downward-sloping design of the lower blade can improve the crushing effect on the raw materials and increase the crushing efficiency.

[0008] Preferably, a plurality of dispersing blades are mounted around the top of the rotating shaft surface. When the rotating shaft rotates, it can drive the dispersing blades to rotate. When the raw material falls from the feed hopper, the dispersing blades can cut and disperse the raw material to ensure the crushing effect of the raw material.

[0009] Preferably, the bottom end of the rotating shaft is provided with a polygonal shaft end and a threaded shaft end in sequence. The grinding part includes a cross cylinder frame sleeved on the polygonal shaft end of the rotating shaft. Grinding wheels are rotatably installed on the left and right shaft ends of the cross cylinder frame. The rotating shaft can drive the cross cylinder frame to rotate, so that the cross cylinder frame drives the grinding wheels to grind the surface of the grinding disc.

[0010] Preferably, a washer is fitted at the bottom of the rotating shaft, and a nut is provided below the washer. The nut is threaded onto the threaded end of the rotating shaft. By rotating the nut on the surface of the threaded end of the rotating shaft, the stability of the cross cylinder frame installed at the bottom of the rotating shaft can be ensured.

[0011] Preferably, a grinding disc is provided above the perforated guide plate and the grinding disc is fixed to the inner wall of the cylinder. A grinding channel is provided on the inner side of the top of the grinding disc, and a sloping protrusion is provided at the center of the top of the grinding disc. The inclined surface of the inner wall of the grinding disc cooperates with the sloping protrusion at the center to guide the debris and concentrate the debris in the grinding channel of the grinding disc, which facilitates the grinding operation of the grinding wheel.

[0012] This utility model has at least the following beneficial effects: 1. This utility model integrates crushing, grinding and screening functions into the same device. Through the coordinated work of the crushing part, grinding part and perforated guide plate, the raw materials are crushed and screened in one go. This avoids the need for additional conveying devices and factory space required by multiple devices in series in the traditional process, and significantly reduces equipment investment costs and production line floor space.

[0013] 2. The raw materials are initially dispersed by the dispersing blades, and then coarsely and finely crushed by the upper, straight and lower three-stage blades. Finally, fine grinding and screening are carried out by the grinding wheel and grinding disc. This achieves multi-stage progressive crushing, which effectively improves the crushing efficiency and particle size uniformity of wood raw materials and avoids the problems of uneven particle size and repeated material return required by traditional hammer mills. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the external structure of a wood-based barbecue charcoal raw material crushing and screening device proposed in this utility model; Figure 2 This is a schematic diagram of the internal cross-sectional structure of a wood-based barbecue charcoal raw material crushing and screening device proposed in this utility model; Figure 3 This is a three-dimensional disassembly diagram of the crushing and grinding sections in a wood-based barbecue charcoal raw material crushing and screening device proposed in this utility model. Figure 4 This is a cross-sectional schematic diagram of the grinding disc in a wood-based barbecue charcoal raw material crushing and screening device proposed in this utility model.

[0016] In the diagram: 1. Beam frame; 2. Crushing cylinder; 21. Cylinder body; 22. Perforated guide plate; 23. Grinding disc; 24. Waste discharge port; 25. Cover plate; 26. Feed hopper; 3. Variable speed drive device; 4. Crushing section; 41. Rotating shaft; 42. Dispersing blade; 43. Blade holder; 44. Upper blade; 45. Straight blade; 46. Lower blade; 5. Grinding section; 51. Cross cylinder frame; 52. Washer; 53. Nut; 54. Grinding wheel. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] Reference Figures 1-4 A wood-based barbecue charcoal raw material crushing and screening device includes a crushing cylinder 2 installed at the top of a beam frame 1. The crushing cylinder 2 includes a cylinder body 21 fixed at the top of the beam frame 1. A cover plate 25 is installed on the top of the cylinder body 21. A feed hopper 26 is installed on the right side of the top of the cover plate 25. A perforated mesh guide plate 22 is installed at the bottom of the inner wall of the cylinder body 21. A debris discharge port 24 is connected to the bottom of the cylinder body 21. A speed-changing drive device 3 is installed at the top of the cover plate 25. A crushing section 4 is suspended inside the cylinder body 21, and a grinding section 5 is provided below the crushing section 4.

[0019] The speed change drive device 3 consists of a gear set, a motor end and a housing. The crushing part 4 includes a rotating shaft 41 that is fixed to the gear shaft end of the speed change drive device 3. A cutter holder 43 is installed at the bottom of the outer surface of the rotating shaft 41. The surface of the cutter holder 43 is connected from top to bottom with an upper blade 44, a straight blade 45 and a lower blade 46.

[0020] The upper blade 44 has an upward-sloping cutting edge, while the lower blade 46 has a downward-sloping cutting edge.

[0021] Several disintegrating blades 42 are mounted around the top of the surface of the rotating shaft 41.

[0022] The bottom end of the rotating shaft 41 is provided with a polygonal shaft end and a threaded shaft end in sequence. The grinding part 5 includes a cross cylinder 51 sleeved on the polygonal shaft end of the rotating shaft 41. Grinding wheels 54 are rotatably installed on the left and right shaft ends of the cross cylinder 51.

[0023] A washer 52 is fitted at the bottom of the rotating shaft 41, and a nut 53 is provided below the washer 52. The nut 53 is threaded onto the threaded end of the rotating shaft 41.

[0024] A grinding disc 23 is provided above the perforated guide plate 22 and is fixed to the inner wall of the cylinder 21. A grinding channel is provided on the inner side of the top of the grinding disc 23 and a sloping protrusion is provided at the center of the top of the grinding disc 23.

[0025] The gear set of the speed change drive device 3 consists of two gears, one large and one small. The small gear shaft end is connected to the motor shaft end, and the large gear shaft end is connected to the top of the rotating shaft 41. The two gears mesh and rotate inside the housing. The speed change drive device 3 controls the rotation of the rotating shaft 41 to ensure the torque force of the rotating shaft 41 during rotation. The upward sloping design of the upper blade 44 and the downward sloping design of the lower blade 46 can improve the crushing effect on the raw materials and improve the crushing efficiency.

[0026] When the rotating shaft 41 rotates, it can drive the dispersing blade 42 to rotate. When the raw material falls from the feed hopper 26, the dispersing blade 42 can cut and disperse the raw material to ensure the crushing effect of the raw material and reduce the probability of the raw material lumps impacting the upper blade 44. The polygonal shaft of the rotating shaft 41 is inserted in the cross cylinder frame 51. The rotating shaft 41 can drive the cross cylinder frame 51 to rotate, so that the cross cylinder frame 51 drives the grinding wheel 54 to grind the surface of the grinding disc 23, further improving the crushing efficiency of the raw material.

[0027] By rotating the nut 53 on the threaded end surface of the rotating shaft 41, the stability of the cross cylinder 51 installed at the bottom of the rotating shaft 41 can be ensured, preventing the cross cylinder 51 from loosening when it accompanies the rotating shaft 41. The inclined surface of the inner wall of the grinding disc 23 cooperates with the inclined protrusion at the center to guide the debris, so that the debris is concentrated in the grinding channel of the grinding disc 23, which facilitates the grinding wheel 54 to perform the grinding operation.

[0028] Working principle: According to Figure 2 and Figure 3 As shown, during use, the raw material is put into the feed hopper 26 and started by the speed change drive device 3. The motor end of the speed change drive device 3, in conjunction with the gear set, drives the rotating shaft 41 to rotate. The rotating shaft 41 rotates and drives the dispersing blade 42 to rotate. The dispersing blade 42 performs preliminary dispersing and cutting of the raw material. The dispersed raw material falls down. When the rotating shaft 41 rotates, it drives the upper blade 44, straight blade 45 and lower blade 46 to rotate and crush and cut the raw material. The crushed raw material slides onto the surface of the grinding disc 23. When the rotating shaft 41 drives the cross cylinder frame 51 to rotate, it controls the grinding wheel 54 to grind and crush on the surface of the grinding disc 23. The grinding wheel 54 presses down on the raw material during grinding and controls the raw material to fall from the forming hole of the grinding disc 23. The preliminarily formed raw material is guided and collected by the perforated guide plate 22. Some of the debris falls from the debris outlet 24 through the hollow holes of the perforated guide plate 22, realizing the preliminary solid-crushing separation operation.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for crushing and screening raw materials for wood-based barbecue charcoal, characterized in that, The device includes a crushing cylinder (2) installed at the top of the beam frame (1). The crushing cylinder (2) includes a cylinder body (21) fixed at the top of the beam frame (1). A cover plate (25) is installed at the top of the cylinder body (21). A feed hopper (26) is installed on the right side of the top of the cover plate (25). A perforated guide plate (22) is installed at the bottom of the inner wall of the cylinder body (21). A chip discharge port (24) is connected to the bottom of the cylinder body (21). A speed-changing drive device (3) is installed at the top of the cover plate (25). A crushing part (4) is suspended inside the cylinder body (21), and a grinding part (5) is provided below the crushing part (4).

2. The wood-based barbecue charcoal raw material crushing and screening device according to claim 1, characterized in that, The variable speed drive device (3) consists of a gear set, a motor end and a housing. The crushing part (4) includes a rotating shaft (41) that is fixed to the gear shaft end of the variable speed drive device (3). A blade holder (43) is installed at the bottom of the outer surface of the rotating shaft (41). The surface of the blade holder (43) is connected from top to bottom in sequence with an upper blade (44), a straight blade (45) and a lower blade (46).

3. The wood-based barbecue charcoal raw material crushing and screening device according to claim 2, characterized in that, The upper blade (44) has an upward-sloping blade end, and the lower blade (46) has a downward-sloping blade end.

4. The wood-based barbecue charcoal raw material crushing and screening device according to claim 2, characterized in that, Several disintegrating blades (42) are mounted around the top of the surface of the rotating shaft (41).

5. The wood-based barbecue charcoal raw material crushing and screening device according to claim 4, characterized in that, The bottom end of the rotating shaft (41) is provided with a polygonal shaft end and a threaded shaft end in sequence. The grinding part (5) includes a cross cylinder (51) sleeved on the polygonal shaft end of the rotating shaft (41). Grinding wheels (54) are rotatably installed on the left and right shaft ends of the cross cylinder (51).

6. The wood-based barbecue charcoal raw material crushing and screening device according to claim 5, characterized in that, A washer (52) is fitted at the bottom of the shaft (41), and a nut (53) is provided below the washer (52). The nut (53) is threaded onto the threaded end of the shaft (41).

7. The wood-based barbecue charcoal raw material crushing and screening device according to claim 1, characterized in that, A grinding disc (23) is provided above the perforated guide plate (22), and the grinding disc (23) is fixed to the inner wall of the cylinder (21). A grinding channel is provided on the inner side of the top of the grinding disc (23), and a sloping protrusion is provided at the center of the top of the grinding disc (23).

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