Pulverizer for coal processing

Abstract

The utility model relates to the technical field of coal processing, in particular to a pulverizer for coal processing, which comprises a mounting box, a pair of symmetrical cutting rods and a pair of symmetrical pulverizing rods are rotatably connected to the inner front wall of the mounting box, cutting blades are fixedly mounted on the surfaces of the cutting rods, and pulverizing rollers are fixedly mounted on the surfaces of the pulverizing rods. A mounting frame is fixedly mounted on the back face of the mounting box, and two symmetrical driving motors are embedded in the surface of the mounting frame. The cutting rods and the smashing rods on the two sides can be driven to rotate through operation of the two driving motors respectively, the cutting blades and the smashing rollers on the cutting rods and the smashing rods are made to rotate in the opposite directions respectively, and large coal is cut through the two cutting blades rotating in the opposite directions; and the size of the coal is reduced, so that the coal falls onto the two crushing rollers rotating in the opposite directions for crushing treatment, and therefore, the crusher can achieve the pre-crushing effect, and the conditions that the coal with larger size is blocked and the feeding is unsmooth are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of coal processing, in particular to a pulverizer for coal processing. Background Art

[0002] Coal is a solid combustible mineral that is gradually formed by ancient plants buried underground and undergoing complex biochemical and physical and chemical changes. Coal is the most widely distributed fossil energy resource in the world. It is known as black gold and food for industry. It has been one of the main energy sources used by the human world since the 18th century. Before use, coal needs to be crushed by a crusher for subsequent use.

[0003] In the prior art, a Chinese patent with publication number CN218796204U discloses a coal processing pulverizer, which adopts the scheme of "including a pulverizing box, the lower end face of which is fixedly connected to a support column, the upper end face of which is provided with a feeding port, the front end face of which is fixedly connected to a first motor through a fixed block, the first motor is connected to a first sprocket, a second sprocket and a third sprocket through an output shaft and a chain transmission, the lower end face of the pulverizing box is provided with a discharge port, and the bottom of the inner cavity of the pulverizing box is provided with a funnel". This scheme achieves the problem that the coal cannot be evenly pulverized and crushed, the uncrushed coal cannot be secondary crushed and crushed, and the coal cannot be screened after the coal is crushed, resulting in the mixing of uncrushed coal and crushed coal.

[0004] However, the above scheme still has some shortcomings. For example, in actual use, the above scheme lacks a mechanism for pre-crushing of coal, which results in that larger coal cannot smoothly enter between the tooth blocks and the crushing rollers of the scheme for crushing. It is easy for large-volume coal to get stuck in the inside of the crushing box. In view of this, the utility model proposes a crusher for coal processing. Utility Model Content

[0005] The purpose of the utility model is to provide a pulverizer for coal processing to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coal processing pulverizer, comprising an installation box, an inner front wall of the installation box is rotatably connected with a pair of symmetrical cutting rods and a pair of crushing rods, the surface of the cutting rods is fixedly installed with a cutting blade, the surface of the crushing rods is fixedly installed with a crushing roller, the back of the installation box is fixedly installed with a mounting frame, the surface of the mounting frame is embedded with two symmetrical driving motors, the output ends of the two driving motors are fixedly installed with large gears, the back of the installation box is provided with rotating openings corresponding to the cutting rods and the crushing rods, the rear ends of the cutting rods and the crushing rods are extended to the back of the installation box through the rotating openings and are fixedly connected with small gears, and a screening mechanism is arranged inside the installation box.

[0007] As a preferred technical solution, the drive motor on the left is respectively connected to the cutting rod and the crushing rod on the left through a large gear and a small gear, and the drive motor on the right is respectively connected to the cutting rod and the crushing rod on the right through a large gear and a small gear, and the output shafts of the two drive motors rotate in opposite directions.

[0008] As a preferred technical solution, the screening mechanism includes a discharge port opened on the right side surface of the installation box, a screen frame extending to the interior of the installation box is arranged inside the discharge port, a servo motor is fixedly installed on the left side surface of the installation box, the output shaft of the servo motor is fixedly connected to a reciprocating screw, the surface of the reciprocating screw is threadedly connected to a threaded block, a sliding strip opening is opened on the left side surface of the installation box, and the right side surface of the threaded block is fixedly connected to the left side surface of the screen frame through the sliding strip opening.

[0009] As a preferred technical solution, guide slide blocks are provided on the front and back of the screen frame, and guide grooves for the guide slide blocks to slide are provided on the inner front wall and the inner rear wall of the installation box.

[0010] As a preferred technical solution, a ventilation hood is embedded on the left surface of the installation box, and a dust exhaust port is embedded on the right surface of the installation box.

[0011] As a preferred technical solution, a ventilation pipe is embedded in the upper surface of the ventilation hood, the lower end of the reciprocating screw is fixedly connected to a connecting rod extending into the ventilation pipe, and the surface of the connecting rod located inside the ventilation pipe is fixedly connected to fan blades.

[0012] As a preferred technical solution, a dust collecting bag is provided on the surface of the dust exhaust port, and the position of the dust exhaust port corresponds to that of the ventilation hood.

[0013] As a preferred technical solution, guide plates are provided on both inner walls of the installation box.

[0014] Beneficial Effects

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model can respectively drive the cutting rod and the crushing rod on both sides to rotate through the operation of two driving motors, and respectively make the cutting blades and the crushing rollers thereon rotate in relative directions. The two cutting blades rotating in opposite directions cut the larger coal, reduce its volume so that it falls on the two crushing rollers rotating in opposite directions for crushing, so that the crusher can achieve the effect of pre-crushing and avoid the situation that the larger coal is stuck and the feeding is not smooth.

[0017] 2. The utility model drives the reciprocating screw to rotate through the operation of the servo motor, and the threaded block drives the screen frame to reciprocate up and down through the rotation of the reciprocating screw, so that the screen frame reaches a shaking state, and the coal fragments are screened and processed. At the same time, the rotation of the reciprocating screw drives the connecting rod to rotate synchronously, so that the fan blades rotate to blow air into the ventilation hood, and the dust particles at the bottom of the installation box fall into the dust collecting bag through the dust exhaust port for collection, so that the crusher can collect dust while screening the coal, providing convenience for its subsequent cleaning work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a front view structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the front section structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the side cross-section structure of the crushing roller of the utility model;

[0022] Figure 4 It is a schematic diagram of the side section structure of the installation box of the utility model.

[0023] In the figure: 1. installation box; 2. cutting rod; 3. crushing rod; 4. cutting blade; 5. crushing roller; 6. mounting frame; 7. driving motor; 8. large gear; 9. small gear; 10. screen frame; 11. servo motor; 12. reciprocating screw; 13. threaded block; 14. guide slide block; 15. ventilation hood; 16. dust outlet; 17. connecting rod; 18. fan blade; 19. dust bag; 20. guide plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] According to the attached Figure 1-4 As shown, the embodiment of the utility model provides a coal processing pulverizer, including an installation box 1, the inner front wall of the installation box 1 is rotatably connected with a pair of symmetrical cutting rods 2 and a pair of crushing rods 3, the surface of the cutting rod 2 is fixedly installed with a cutting blade 4, the surface of the crushing rod 3 is fixedly installed with a crushing roller 5, the back of the installation box 1 is fixedly installed with a mounting frame 6, the surface of the mounting frame 6 is embedded with two symmetrical driving motors 7, the output ends of the two driving motors 7 are fixedly installed with large gears 8, the back of the installation box 1 is provided with rotating openings corresponding to the cutting rod 2 and the crushing rod 3, respectively, the rear ends of the cutting rod 2 and the crushing rod 3 are extended to the back of the installation box 1 through the rotating opening and are fixedly connected with a small gear 9.

[0026] The left drive motor 7 is respectively connected to the cutting rod 2 and the crushing rod 3 on the left side through a large gear 8 and a small gear 9, and the right drive motor 7 is respectively connected to the cutting rod 2 and the crushing rod 3 on the right side through a large gear 8 and a small gear 9, and the output shafts of the two drive motors 7 rotate in opposite directions. Guide plates 20 are provided on the inner walls of both sides of the installation box 1. Under the guidance of the guide plates 20, the coal can fall smoothly and accurately between the two cutting blades 4.

[0027] A screening mechanism is arranged inside the installation box 1, and the screening mechanism includes a discharge port opened on the right side surface of the installation box 1, and a screen frame 10 extending to the inside of the installation box 1 is arranged inside the discharge port, and a servo motor 11 is fixedly installed on the left side surface of the installation box 1, and the output shaft of the servo motor 11 is fixedly connected to a reciprocating screw 12, and the surface of the reciprocating screw 12 is threadedly connected to a threaded block 13, and a sliding strip opening is opened on the left side surface of the installation box 1, and the right side surface of the threaded block 13 is fixedly connected to the left side surface of the screen frame 10 through the sliding strip opening.

[0028] Guide slide blocks 14 are provided on the front and back of the screen frame 10, and guide grooves for the guide slide blocks 14 to slide are provided on the inner front wall and the inner rear wall of the installation box 1. Under the guidance of the guide slide blocks 14, the threaded block 13 drives the screen frame 10 to reciprocate up and down through the rotation of the reciprocating screw 12.

[0029] A ventilation hood 15 is embedded in the left surface of the installation box 1, a dust exhaust port 16 is embedded in the right surface of the installation box 1, a ventilation pipe is embedded in the upper surface of the ventilation hood 15, the lower end of the reciprocating screw 12 is fixedly connected to a connecting rod 17 extending to the inside of the ventilation pipe, and the surface of the connecting rod 17 located inside the ventilation pipe is fixedly connected to a fan blade 18, a dust bag 19 is provided on the surface of the dust exhaust port 16, and the dust exhaust port 16 corresponds to the position of the ventilation hood 15, and the dust bag 19 is fixedly connected to the dust exhaust port 16 by external bolts.

[0030] When the coal processing pulverizer of the utility model is in use, the coal is poured into between the two cutting blades 4 through the guide plate 20. At this time, the cutting rods 2 and the crushing rods 3 on both sides are driven to rotate by the large gear 8 and the small gear 9 under the operation of the two driving motors 7. The rotation of the cutting rods 2 and the crushing rods 3 on both sides respectively drives the cutting blades 4 and the crushing rollers 5 thereon to rotate in relative directions. The two cutting blades 4 rotating in opposite directions cut the larger coal, reduce its volume so that it falls on the two crushing rollers 5 rotating in opposite directions for crushing, so that the pulverizer can achieve the effect of pre-crushing. The crushed coal fragments fall on the screen frame 10. The operation of the servo motor 11 drives the reciprocating screw 12 to rotate. Under the guidance of the guide slider 14, the threaded block 13 drives the screen frame 10 to reciprocate up and down through the rotation of the reciprocating screw 12, so that the screen frame 10 reaches a shaking state to screen the coal fragments. During this period, smaller coal dust and particles fall to the inner bottom of the installation box 1 through the mesh holes of the screen frame 10. At the same time, the operation of the servo motor 11 drives the connecting rod 17 to rotate synchronously through the reciprocating screw 12. The rotation of the connecting rod 17 drives the fan blades 18 to rotate to blow air into the ventilation hood 15, and the dust particles at the bottom of the installation box 1 fall into the dust bag 19 through the dust outlet 16 for collection.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A coal processing pulverizer, characterized in that: The invention comprises an installation box (1), wherein the inner front wall of the installation box (1) is rotatably connected to a pair of symmetrical cutting rods (2) and a pair of crushing rods (3), the surface of the cutting rod (2) is fixedly mounted with a cutting blade (4), the surface of the crushing rod (3) is fixedly mounted with a crushing roller (5), the back of the installation box (1) is fixedly mounted with a mounting frame (6), the surface of the mounting frame (6) is embedded with two symmetrical driving motors (7), the output ends of the two driving motors (7) are fixedly mounted with a large gear (8), the back of the installation box (1) is provided with a rotating opening corresponding to the cutting rod (2) and the crushing rod (3), the rear ends of the cutting rod (2) and the crushing rod (3) are extended to the back of the installation box (1) through the rotating opening and are fixedly connected with a small gear (9), and a screening mechanism is arranged inside the installation box (1).

2. A coal processing pulverizer according to claim 1, characterized in that: The drive motor (7) on the left side is respectively connected to the cutting rod (2) and the crushing rod (3) on the left side through a large gear (8) and a small gear (9), and the drive motor (7) on the right side is respectively connected to the cutting rod (2) and the crushing rod (3) on the right side through a large gear (8) and a small gear (9), and the output shafts of the two drive motors (7) rotate in opposite directions.

3. A coal processing pulverizer according to claim 1, characterized in that: The screening mechanism comprises a material discharge port provided on the right side surface of the installation box (1); a screen frame (10) extending into the interior of the installation box (1) is arranged inside the material discharge port; a servo motor (11) is fixedly mounted on the left side surface of the installation box (1); an output shaft of the servo motor (11) is fixedly connected to a reciprocating screw (12); a surface of the reciprocating screw (12) is threadedly connected to a threaded block (13); a sliding strip opening is provided on the left side surface of the installation box (1); and a right side surface of the threaded block (13) is fixedly connected to the left side surface of the screen frame (10) via the sliding strip opening.

4. A coal processing pulverizer according to claim 3, characterized in that: The front and back sides of the screen frame (10) are both provided with guide slide blocks (14), and the inner front wall and the inner rear wall of the installation box (1) are both provided with guide slide grooves for the guide slide blocks (14) to slide.

5. A coal processing pulverizer according to claim 1, characterized in that: A ventilation hood (15) is embedded in the left surface of the installation box (1), and a dust exhaust port (16) is embedded in the right surface of the installation box (1).

6. A coal processing pulverizer according to claim 5, characterized in that: A ventilation pipe is embedded in the upper surface of the ventilation hood (15); a connecting rod (17) extending into the interior of the ventilation pipe is fixedly connected to the lower end of the reciprocating screw (12); and a fan blade (18) is fixedly connected to the surface of the connecting rod (17) located inside the ventilation pipe.

7. A coal processing pulverizer according to claim 6, characterized in that: A dust collecting bag (19) is sleeved on the surface of the dust discharge port (16), and the positions of the dust discharge port (16) and the ventilation hood (15) correspond to each other.

8. A coal processing pulverizer according to claim 1, characterized in that: Guide plates (20) are provided on both inner walls of the installation box (1).

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