Crushing and screening device for biomass fuel

Abstract

The utility model relates to the technical field of biomass fuel processing, and discloses a biomass fuel crushing and screening device which comprises a base, a crushing box is fixedly arranged on the left side of the top end of the base through a set of supporting columns, a feeding port is formed in the middle of the top end of the crushing box, and a crushing mechanism is arranged in the crushing box. By arranging the crushing mechanism and the screening mechanism, during use, fuel needing to be processed is firstly placed in the crushing box through the feeding port, and through cooperative use of a first motor, a crushing roller, a second motor, a connecting shaft, a first conical tooth, a rotating column, a second conical tooth and a crushing cutter, the fuel can be fully crushed; and then through cooperative use of a fixing cylinder, a third motor, a first gear, a shaft column, a screening cylinder, a roller and a circular ring groove, the fuel can be fully screened, the crushing and screening efficiency is high, the effect is good, and the machining quality of the fuel is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of biomass fuel processing, in particular to a biomass fuel crushing and screening device. Background Art

[0002] Biomass fuel refers to the burning of biomass materials as fuel, which is generally mainly agricultural and forestry waste. It is mainly different from fossil fuels. The existing biomass molded fuel uses agricultural and forestry waste as raw materials, and is made into various shapes through processes such as crushing, mixing, extrusion and drying. It is a new type of clean fuel that can be directly burned. However, the existing biomass fuel is usually directly transferred to the extrusion equipment for extrusion after crushing. However, the existing biomass fuel has different sizes of crushed particles when crushed. If it is directly transferred to the extrusion equipment, the extrusion efficiency will be hindered, which is not conducive to improving the subsequent processing efficiency.

[0003] The existing biomass fuel crushing and screening device is not sufficient in crushing and screening when in use, which in turn affects the processing quality of the fuel. Therefore, those skilled in the art provide a biomass fuel crushing and screening device to solve the problems raised in the above background technology. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a biomass fuel crushing and screening device, which has the advantages of good crushing and screening effects and solves the above-mentioned technical problems.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a biomass fuel crushing and screening device, comprising a base, a crushing box is fixedly arranged on the left side of the top of the base through a group of pillars, a feed port is arranged in the middle of the top of the crushing box, a crushing mechanism is arranged inside the crushing box, a guide plate is fixedly arranged at the bottom end of the crushing box, a stretchable hose is fixedly arranged below the right side wall of the crushing box, a screening box is fixedly arranged on the right side of the top of the base, a cover plate is hinged on the top of the screening box, a screening mechanism is arranged inside the screening box, and a group of discharge pipes are fixedly arranged below the front and rear end walls of the screening box;

[0008] The crushing mechanism includes: two first motors are fixedly arranged on the upper part of the rear end wall of the crushing box, the output ends of the two first motors are fixedly connected to the two crushing rollers on the upper part of the crushing box, a second motor is fixedly arranged on the left side of the rear end wall of the crushing box, a connecting shaft is fixedly arranged on the output end of the second motor, two first conical teeth are fixedly arranged on the outer surface of the connecting shaft, two rotating columns are rotatably connected to the lower part of the internal front end wall of the crushing box through bearings, one end of the two rotating columns penetrates to the rear of the crushing box and is fixedly arranged with second conical teeth, and a group of crushing knives are fixedly arranged on the outer surfaces of the two rotating columns.

[0009] As a preferred technical solution of the present utility model, the two first conical teeth are meshed with the two second conical teeth.

[0010] As a preferred technical solution of the utility model, a set of crushing knives on the outer surfaces of the two rotating columns are arranged at equal distances.

[0011] As a preferred technical solution of the utility model, the screening mechanism includes: a fixed cylinder is fixedly arranged in the middle of the inner bottom end of the screening box, a third motor is fixedly arranged at the inner right bottom end of the fixed cylinder, a first gear is fixedly arranged at the output end of the third motor, a shaft column is rotatably connected to the bottom end of the inner center of the fixed cylinder through a bearing, a second gear is fixedly arranged on the outer surface of the shaft column, one end of the shaft column passes through the top of the fixed cylinder and is fixedly connected to the top of the screening cylinder, a group of rollers are fixedly arranged on the outer side of the bottom end of the screening cylinder, and a circular ring groove is opened on the outer side of the top end of the fixed cylinder.

[0012] As a preferred technical solution of the present utility model, the first gear is meshed with the second gear.

[0013] As a preferred technical solution of the utility model, a group of rollers are embedded in the annular groove.

[0014] Compared with the prior art, the utility model provides a biomass fuel crushing and screening device, which has the following beneficial effects:

[0015] The utility model is provided with a crushing mechanism and a screening mechanism. When in use, the fuel to be processed is first placed in the interior of a crushing box through a feed port. The fuel can be fully crushed through the cooperation of a first motor, a crushing roller, a second motor, a connecting shaft, a first conical tooth, a rotating column, a second conical tooth and a crushing knife. Afterwards, the fuel can be fully screened through the cooperation of a fixed cylinder, a third motor, a first gear, a shaft column, a screening cylinder, a roller and an annular groove. The crushing and screening efficiency is high, the effect is good, and the processing quality of the fuel is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure inside the crushing box of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure inside the screening box of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the connection between the screening drum and the roller of the utility model.

[0020] Among them: 1. base; 2. crushing box; 3. feed port; 4. crushing mechanism; 401. first motor; 402. crushing roller; 403. second motor; 404. connecting shaft; 405. first conical tooth; 406. rotating column; 407. second conical tooth; 408. crushing knife; 5. guide plate; 6. stretchable hose; 7. screening box; 8. cover plate; 9. screening mechanism; 901. fixed cylinder; 902. third motor; 903. first gear; 904. shaft column; 905. second gear; 906. screening cylinder; 907. roller; 908. annular groove; 10. discharge pipe. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0022] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figure 1-Figure 4A biomass fuel crushing and screening device comprises: a base 1, a crushing box 2 is fixedly arranged on the left side of the top of the base 1 through a group of pillars, a feed port 3 is arranged in the middle of the top of the crushing box 2, a crushing mechanism 4 is arranged inside the crushing box 2, a guide plate 5 is fixedly arranged at the bottom of the crushing box 2, a stretchable hose 6 is fixedly arranged below the right side wall of the crushing box 2, a screening box 7 is fixedly arranged on the right side of the top of the base 1, a cover plate 8 is hinged at the top of the screening box 7, a screening mechanism 9 is arranged inside the screening box 7, and a group of discharge pipes 10 are fixedly arranged below the front and rear end walls of the screening box 7;

[0025] The crushing mechanism 4 includes: two first motors 401 are fixedly arranged on the upper part of the rear end wall of the crushing box 2, and the output ends of the two first motors 401 are fixedly connected to the two crushing rollers 402 on the upper part of the crushing box 2; a second motor 403 is fixedly arranged on the left side of the rear end wall of the crushing box 2, and a connecting shaft 404 is fixedly arranged on the output end of the second motor 403, and two first conical teeth 405 are fixedly arranged on the outer surface of the connecting shaft 404; two rotating columns 406 are rotatably connected to the lower part of the internal front end wall of the crushing box 2 through bearings, one end of the two rotating columns 406 passes through the rear of the crushing box 2 and is fixedly arranged with second conical teeth 407, and a group of crushing knives 408 are fixedly arranged on the outer surfaces of the two rotating columns 406; the two first conical teeth 405 are meshed with the two second conical teeth 407; the group of crushing knives 408 on the outer surfaces of the two rotating columns 406 are equidistantly arranged.

[0026] Furthermore, when in use, the fuel to be processed is first placed inside the crushing box 2 through the feed port 3, and then the two first motors 401 are started to drive the two crushing rollers 402 to rotate, so that the fuel can be initially crushed, and the two second motors 403 are started to drive the two connecting shafts 404 to rotate, and the two first conical teeth 405 drive the two second conical teeth 407 to rotate, and the two rotating columns 406 rotate, and then the two sets of crushing knives 408 rotate, so as to further crush the fuel, and the crushed fuel is output through the stretchable hose 6 with the cooperation of the guide plate 5.

[0027] The screening mechanism 9 includes: a fixed cylinder 901 is fixedly arranged in the middle of the inner bottom end of the screening box 7, a third motor 902 is fixedly arranged at the inner right bottom end of the fixed cylinder 901, a first gear 903 is fixedly arranged at the output end of the third motor 902, a shaft column 904 is rotatably connected to the bottom end of the inner center of the fixed cylinder 901 through a bearing, a second gear 905 is fixedly arranged on the outer surface of the shaft column 904, one end of the shaft column 904 passes through the upper part of the fixed cylinder 901 and is fixedly connected to the top of the screening cylinder 906, a group of rollers 907 are fixedly arranged on the outer side of the bottom end of the screening cylinder 906, and a circular groove 908 is opened on the outer side of the top end of the fixed cylinder 901; the first gear 903 is meshed with the second gear 905; a group of rollers 907 are all embedded in the circular groove 908.

[0028] Furthermore, during screening, the cover plate 8 is opened, and then one end of the stretchable hose 6 is placed above the screening drum 906. After the feeding is completed, the cover plate 8 is closed to prevent smoke and dust from being dispersed during screening. During screening, the third motor 902 is started to drive the first gear 903 to drive the second gear 905 to rotate, and the shaft column 904 rotates, thereby rotating the screening drum 906. At the same time, a group of rollers 907 roll inside the annular groove 908 to guide and stabilize the screening drum 906. When the screening drum 906 rotates, the fuel can be screened, and the screened fine fuel floats inside the screening box 7 and is output through the discharge pipe 10. The cover plate 8 is opened again to take out the coarse fuel filtered inside the screening drum 906.

[0029] Working principle: When in use, first place the fuel to be processed into the crushing box 2 through the feed port 3, then start the two first motors 401 to drive the two crushing rollers 402 to rotate, so that the fuel can be initially crushed, start the two second motors 403 to drive the two connecting shafts 404 to rotate, and the two first conical teeth 405 drive the two second conical teeth 407 to rotate, and the two rotating columns 406 rotate, thereby rotating the two groups of crushing knives 408, so as to further crush the fuel, and the crushed fuel is output through the stretchable hose 6 with the cooperation of the guide plate 5, and the cover plate 8 is opened, and then the stretchable hose 6 is One end is placed above the screening drum 906. After the feeding is completed, the cover plate 8 is closed to prevent smoke and dust from being dispersed during screening. During screening, the third motor 902 is started to drive the first gear 903 to drive the second gear 905 to rotate, and the shaft column 904 rotates, thereby rotating the screening drum 906. At the same time, a group of rollers 907 roll inside the annular groove 908 to guide and stabilize the screening drum 906. When the screening drum 906 rotates, the fuel can be screened, and the screened fine fuel floats inside the screening box 7 and is output through the discharge pipe 10. The cover plate 8 is opened again to take out the coarse fuel filtered inside the screening drum 906.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A biomass fuel crushing and screening device, comprising a base (1), characterized in that: A crushing box (2) is fixedly arranged on the left side of the top of the base (1) through a group of pillars, a feed port (3) is arranged in the middle of the top of the crushing box (2), a crushing mechanism (4) is arranged inside the crushing box (2), a guide plate (5) is fixedly arranged at the bottom of the inside of the crushing box (2), a stretchable hose (6) is fixedly arranged below the right side wall of the crushing box (2), a screening box (7) is fixedly arranged on the right side of the top of the base (1), a cover plate (8) is hinged at the top of the screening box (7), a screening mechanism (9) is arranged inside the screening box (7), and a group of discharge pipes (10) are fixedly arranged below the front and rear end walls of the screening box (7); The crushing mechanism (4) comprises: two first motors (401) are fixedly arranged on the upper part of the rear end wall of the crushing box (2), the output ends of the two first motors (401) are fixedly connected to two crushing rollers (402) on the upper part of the crushing box (2), a second motor (403) is fixedly arranged on the left side of the rear end wall of the crushing box (2), a connecting shaft (404) is fixedly arranged on the output end of the second motor (403), two first conical teeth (405) are fixedly arranged on the outer surface of the connecting shaft (404), two rotating columns (406) are rotatably connected to the lower part of the inner front end wall of the crushing box (2) through bearings, one end of the two rotating columns (406) penetrates to the rear of the crushing box (2) and is fixedly arranged with second conical teeth (407), and a group of crushing knives (408) are fixedly arranged on the outer surface of the two rotating columns (406).

2. The biomass fuel crushing and screening device according to claim 1, characterized in that: The two first conical teeth (405) are meshed with the two second conical teeth (407).

3. The biomass fuel crushing and screening device according to claim 1, characterized in that: A group of crushing knives (408) on the outer surfaces of the two rotating columns (406) are arranged at equal distances.

4. The biomass fuel crushing and screening device according to claim 1, characterized in that: The screening mechanism (9) comprises: a fixed cylinder (901) is fixedly arranged at the middle of the inner bottom end of the screening box (7); a third motor (902) is fixedly arranged at the inner right bottom end of the fixed cylinder (901); a first gear (903) is fixedly arranged at the output end of the third motor (902); a shaft column (904) is rotatably connected to the bottom end of the inner center of the fixed cylinder (901) via a bearing; a second gear (905) is fixedly arranged on the outer surface of the shaft column (904); one end of the shaft column (904) passes through the upper part of the fixed cylinder (901) and is fixedly connected to the top end of the screening cylinder (906); a group of rollers (907) are fixedly arranged on the outer side of the bottom end of the screening cylinder (906); and a circular groove (908) is provided on the outer side of the top end of the fixed cylinder (901).

5. The biomass fuel crushing and screening device according to claim 4, characterized in that: The first gear (903) is meshed with the second gear (905).

6. The biomass fuel crushing and screening device according to claim 4, characterized in that: A group of rollers (907) are embedded in the annular groove (908).

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