Dustproof cement raw material pulverizer

Abstract

A dustproof cement raw material pulverizer comprises a bottom frame, a pulverizing box body is arranged on the bottom frame, a first motor is arranged outside the pulverizing box body through a first mounting frame, a smashing roller is rotationally arranged in the pulverizing box body, and the smashing roller is connected with an output shaft of the first motor; a second motor is arranged outside the grinding box body through a second mounting frame, a grinding assembly is arranged in the grinding box body, the grinding assembly is composed of a smashing roller and a grinding hopper, the smashing roller is connected with an output shaft of the second motor, a plurality of sets of baffles used for dust prevention are rotationally arranged in the grinding box body, and the grinding hopper is connected with the smashing roller. The baffle is sleeved with a torsion spring. The upper baffle and the lower baffle are additionally arranged on the discharging opening of the powder grinding box body, the powder grinding box body is sealed during operation and discharging, dust is prevented from flying outwards, effective dust prevention is achieved, the dust raising phenomenon is avoided, and therefore the surrounding environment is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of cement processing, in particular to a dustproof cement raw material grinding machine. Background Art

[0002] Cement raw material grinding machine is a processing equipment that crushes and grinds cement raw materials into powder. It grinds large pieces of limestone, clay, iron ore, coal and other materials in cement raw materials to suitable particle size to form a certain particle gradation to meet the coagulation and hardening requirements of subsequent cement slurry use.

[0003] The patent with the patent authorization announcement number CN218189839U discloses a raw material grinding machine for cement processing. The patent achieves preliminary cleaning by toggling two second cleaning plates to make the second cleaning plates move to push the cement on the bottom wall of the protective shell into the tunnel. By starting the second motor, the semi-toothed disc rotates and engages with the tooth plate, thereby driving the tooth plate to rise. When the semi-toothed disc is separated from the tooth plate, the tooth plate descends and drives the first cleaning plate to reciprocate up and down under the action of the support frame to clean the inner wall of the tunnel, thereby achieving the purpose of cleaning and solving the problem of cement adsorbing on the inner wall of the grinding device and accumulating to cause obstruction. However, the patent still has shortcomings in actual use. Since the grinding mill is an open design, dust will be dispersed during operation and unloading, thereby forming dust, affecting the quality of the surrounding air environment and causing harm to the health of the staff.

[0004] To this end, this patent provides a dust-proof cement raw material grinding machine. Utility Model Content

[0005] In order to overcome the shortcomings of the existing patented grinding mill, which is open in design and causes dust to float during operation and feeding, thereby forming dust, affecting the quality of the surrounding air environment and causing harm to the health of workers, the utility model provides a dust-proof cement raw material grinding mill.

[0006] To solve the above problem, the utility model adopts the following technical scheme: a dustproof cement raw material grinding machine, comprising a base frame, a grinding box body is arranged on the base frame, a first motor is arranged on the outside of the grinding box body through a first mounting frame, a crushing roller is rotatably arranged in the grinding box body, the crushing roller is connected to the output shaft of the first motor, a second motor is arranged on the outside of the grinding box body through a second mounting frame, a grinding assembly is arranged in the grinding box body, the grinding assembly consists of a crushing roller and a grinding hopper, wherein the crushing roller is connected to the output shaft of the second motor, a plurality of baffles for dust prevention are rotatably arranged in the grinding box body, and a torsion spring is sleeved on the baffle.

[0007] More preferably, a fan is provided on the base frame via a third mounting frame, an air guide frame is provided on the grinding box via a first fixing frame, and the air guide frame is connected to the fan.

[0008] More preferably, a second fixed frame is provided on the discharge port of the grinding box, a screen plate for screening unqualified powder is rotatably provided on the second fixed frame, a guide frame is provided on the discharge port of the grinding box through a third fixed frame, and a limit frame for limiting the screen plate is slidably provided on the guide frame.

[0009] More preferably, an air box is provided on both sides of the grinding box body through a fourth fixed frame, the air box includes an air pipe, and the air pipe penetrates into the interior of the grinding box body, a rotating rod is rotatably provided on the air box, the rotating rod and a second motor adjacent to the rotating rod are provided with a flat pulley group, an extrusion plate is slidably provided in the air box, and the extrusion plate is connected to the rotating rod through the connecting block.

[0010] More preferably, a filter screen for filtering dust is provided in the guide frame.

[0011] More preferably, a barrier bag for collecting dust is provided on the guide frame.

[0012] Compared with the prior art, the utility model has the following technical effects: 1. By adding two layers of baffles at the discharge port of the grinding box, the grinding box is closed during operation and discharge to prevent dust from drifting outward, thereby achieving effective dust prevention and avoiding dust fluttering, thereby protecting the surrounding environment.

[0013] 2. The fan jets airflow to blow up qualified fine powder in the cement raw materials, realize powder classification and improve the grinding quality.

[0014] 3. The second motor and the flat pulley group provide power to the rotating rod, so that the rotating rod drives the extrusion plate to move up and down to push the air inside the inflation box to clean the surface of the grinding component and prevent powder accumulation on the surface of the grinding component. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 The utility model is a three-dimensional cross-sectional structural schematic diagram of the grinding box, baffle and crushing roller.

[0017] Figure 3 It is a three-dimensional cross-sectional structural schematic diagram of the second mounting frame, the second motor and the grinding assembly of the utility model.

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the baffle and the torsion spring of the utility model.

[0019] Figure 5 It is a three-dimensional cross-sectional structural schematic diagram of the third mounting frame, the fan and the air guide frame of the utility model.

[0020] Figure 6 It is a schematic diagram of the three-dimensional cross-sectional structure of the second fixing frame and the screen plate of the utility model.

[0021] Figure 7 It is a three-dimensional structural schematic diagram of the third fixing frame, the guide frame and the limiting frame of the utility model.

[0022] Figure 8 It is a three-dimensional cross-sectional structural schematic diagram of the flat belt pulley group, the fourth fixing frame and the inflation box of the utility model.

[0023] Fig. 9 It is a three-dimensional cross-sectional structural schematic diagram of the rotating rod, the connecting block and the extrusion plate of the utility model.

[0024] The markings of the components in the accompanying drawings are as follows: 1. base frame, 2. grinding box, 3. baffle, 4. torsion spring, 5. first mounting frame, 6. first motor, 7. crushing roller, 8. second mounting frame, 9. second motor, 10. grinding assembly, 11. third mounting frame, 12. fan, 13. air guide frame, 14. first fixed frame, 15. second fixed frame, 16. sieve plate, 17. third fixed frame, 18. guide frame, 19. limit frame, 20. flat belt pulley group, 21. fourth fixed frame, 22. inflatable box, 23. rotating rod, 24. connecting block, 25. extrusion plate, 26. filter screen, 27. barrier bag. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with specific embodiments. It should also be noted that, unless otherwise clearly specified and limited, terms such as: setting, installing, connecting, and connecting 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Example 1: Please refer to Figure 1-Figure 4A dustproof cement raw material grinding machine comprises a base frame 1, a grinding box 2 is arranged in the middle of the base frame 1, two first motors 6 are arranged on the front side of the outside of the grinding box 2 through a first mounting frame 5 and are symmetrically distributed on the left and right sides, two symmetrically distributed crushing rollers 7 are rotatably arranged in the grinding box 2, and the two crushing rollers 7 are respectively connected to the output shafts of the first motors 6 that are adjacent to each other. The operation of the first motor 6 can drive the crushing rollers 7 to rotate to crush the cement raw materials, and the front side of the outside of the grinding box 2 is provided with a symmetrically distributed first motor 6 through a second mounting frame 8. There are two second motors 9 distributed, and a grinding assembly 10 is arranged in the grinding box 2 below the crushing roller 7. The grinding assembly 10 consists of a crushing roller and a grinding hopper, wherein the crushing roller is connected to the output shaft of the second motor 9. The operation of the second motor 9 can drive the crushing roller to rotate, so that the crushing roller and the grinding hopper cooperate to grind the cement raw material. A plurality of baffles 3 for dust prevention are rotatably arranged in the grinding box 2, and the front and rear parts of the baffles 3 are both sleeved with torsion springs 4, and the two ends of the torsion spring 4 are respectively connected to the baffle and the grinding box 2.

[0027] When in use, cement raw material falls into the upper baffle plate 3. Under the action of the weight of the cement raw material, the upper baffle plate 3 rotates and opens for unloading, and the torsion spring 4 is deformed accordingly, and the cement raw material falls downward into the lower baffle plate 3. The lower baffle plate 3 rotates and opens to allow the cement raw material to enter the grinding box 2. At this time, the upper baffle plate 3 is reset and closed under the action of the restoring elastic force of the torsion spring 4 to close the unloading port of the grinding box 2 for the lower wheel to receive the material, and at the same time, the lower baffle plate 3 is prevented from scattering dust outward during unloading. After the unloading of the lower baffle plate 3 is completed, the torsion spring 4 is also reset to close the grinding box 2 to prevent the dust generated by the operation of the grinding machine when the upper baffle plate 3 is opened for unloading from floating out, thereby realizing double dust prevention treatment. Then the first motor 6 is started, and the two crushing rollers 7 rotate in opposite directions to crush the raw material. The crushed raw material is ground and crushed by the grinding assembly 10, and the powdered cement raw material is discharged from the unloading port of the grinding box 2.

[0028] Example 2: Based on Example 1, please refer to Figure 5 and Figure 6 A fan 12 is provided at the rear side of the upper and lower parts of the base frame 1 through a third mounting frame 11 , and an air guide frame 13 is provided at the bottom of the grinding box 2 through a first fixing frame 14 , and the air guide frame 13 is connected to the fan 12 .

[0029] See also Figure 1 , Figure 6 and Figure 7A second fixed frame 15 is provided on the discharge port of the grinding box 2, and a sieve plate 16 for screening unqualified powder is rotatably provided on the second fixed frame 15. The sieve plate 16 can be rotated downward to pour out the powder. A guide frame 18 is provided on the discharge port of the grinding box 2 through a third fixed frame 17, and a limiting frame 19 for limiting the position of the sieve plate 16 is slidably provided on the guide frame 18. A filter screen 26 for filtering dust is provided in the guide frame 18, and a barrier bag 27 for collecting dust is sleeved on the guide frame 18.

[0030] When the ground cement raw materials are discharged, the fan 12 sprays air at high speed and evenly to blow up qualified fine powder in the cement raw materials. The qualified fine powder is guided by the guide frame 18 to the filter screen 26 to remove impurities and then collected by the barrier bag 27, while the unqualified coarse powder falls into the sieve plate 16 for screening, thereby realizing powder classification processing and improving the grinding quality.

[0031] See also Figure 8 and Fig. 9 The left and right sides of the grinding box 2 are both provided with an air box 22 through a fourth fixed frame 21. The air box 22 includes an air pipe, and the air pipe penetrates into the interior of the grinding box 2. A rotating rod 23 is rotatably provided on the air box 22. The rotating rod 23 and the adjacent second motor 9 are provided with a flat belt pulley group 20. The flat belt pulley group 20 can transmit the rotation to the rotating rod 23 when the second motor 9 is operating. An extrusion plate 25 is slidably provided in the air box 22, and the extrusion plate 25 is connected to the rotating rod 23 through the connecting block 24.

[0032] When the second motor 9 is in operation, the rotation rod 23 is transmitted through the flat belt pulley set 20, so that the rotation rod 23 rotates and drives the extrusion plate 25 through the connecting block 24. Under the restriction of the air charging box 22, the air charging box 22 moves up and down to push the air in the frame out. The impact airflow formed by the air impacts the surface of the grinding component 10 to blow off the adhered powder, thereby cleaning the grinding component 10.

[0033] The above embodiments are provided for persons familiar with the art to implement or use the present invention. Personnel familiar with the art can make various modifications or changes to the above embodiments without departing from the utility model concept of the present invention. Therefore, the protection scope of the present invention is not limited to the above embodiments, but should be the maximum scope of the innovative features mentioned in the claims.

Claims

1. A dustproof cement raw material grinding machine, comprising a base frame (1), a grinding box (2) being arranged on the base frame (1), a first motor (6) being arranged outside the grinding box (2) via a first mounting frame (5), a crushing roller (7) being rotatably arranged inside the grinding box (2), the crushing roller (7) being connected to an output shaft of the first motor (6), a second motor (9) being arranged outside the grinding box (2) via a second mounting frame (8), a grinding assembly (10) being arranged inside the grinding box (2), the grinding assembly (10) being composed of a crushing roller and a grinding hopper, wherein the crushing roller is connected to the output shaft of the second motor (9), characterized in that: A plurality of groups of baffles (3) for preventing dust are rotatably arranged in the grinding box (2), and a torsion spring (4) is sleeved on the baffles (3).

2. A dustproof cement raw material grinding machine according to claim 1, characterized in that: A fan (12) is provided on the base frame (1) via a third mounting frame (11), and an air guide frame (13) is provided on the grinding box (2) via a first fixing frame (14), wherein the air guide frame (13) is in communication with the fan (12).

3. A dustproof cement raw material grinding machine according to claim 2, characterized in that: A second fixed frame (15) is provided on the discharge port of the grinding box (2); a sieve plate (16) for screening unqualified powder is rotatably provided on the second fixed frame (15); a guide frame (18) is provided on the discharge port of the grinding box (2) via a third fixed frame (17); a limit frame (19) for limiting the position of the sieve plate (16) is slidably provided on the guide frame (18).

4. A dustproof cement raw material grinding machine according to claim 1, characterized in that: An air box (22) is provided on both sides of the grinding box (2) via a fourth fixing frame (21); the air box (22) includes an air pipe, and the air pipe penetrates into the grinding box (2); a rotating rod (23) is rotatably provided on the air box (22); a flat pulley group (20) is provided between the rotating rod (23) and a second motor (9) adjacent thereto; an extrusion plate (25) is slidably provided inside the air box (22); the extrusion plate (25) is connected to the rotating rod (23) via a connecting block (24).

5. A dustproof cement raw material grinding machine according to claim 3, characterized in that: A filter screen (26) for filtering dust is arranged in the guide frame (18).

6. A dustproof cement raw material grinding machine according to claim 3, characterized in that: The guide frame (18) is sleeved with a barrier bag (27) for collecting dust.

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