Machine-made sand grinding device

Abstract

The utility model discloses a machine-made sand grinding device, which relates to the technical field of machine-made sand grinding, and comprises a grinding tank, three annularly distributed support frames are welded on the outer wall of the lower part of the circumference of the grinding tank, a screening disc is fixedly mounted in the grinding tank, annularly distributed screening holes are formed in the screening disc, and the supporting frames are welded on the outer wall of the lower part of the circumference of the grinding tank. And a dust collection type grinding mechanism is arranged in the grinding tank and comprises a rotating shaft, a grinding roller, a dust collection box, a dust collection electric fan, a drawer and a dust filtering net. By means of the screening disc, gravel raw materials can be effectively screened conveniently, then the size of the ground raw materials can be more uniform, and screening holes in the screening disc can be continuously cleaned through rotation of a brush at the bottom end of a rotating shaft; and the dust collection type grinding mechanism is arranged, so that dust removal operation can be conveniently carried out in the grinding process, environmental pollution caused by the fact that a large amount of dust overflows to the external environment can be effectively reduced in the grinding process, and human health is benefited.

Description

Technical Field

[0001] The utility model relates to the technical field of machine-made sand grinding, in particular to a machine-made sand grinding device. Background Art

[0002] Artificial sand refers to sand processed by sand making machines and other auxiliary equipment. In the process of making artificial sand, the sand and stone raw materials need to be ground, so a grinding device is needed. However, the existing artificial sand grinding devices have the following problems during the grinding process:

[0003] First, it is not convenient to effectively screen the sand and gravel raw materials, which leads to uneven size of the ground raw materials;

[0004] Secondly, it is not convenient to perform dust removal during the grinding process, because a large amount of dust will be generated during the grinding process. If a large amount of dust is spilled into the external environment, it will not only cause serious pollution to the working environment, but also be detrimental to human health. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a machine-made sand grinding device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A machine-made sand grinding device comprises a grinding tank, three annularly distributed support frames are welded to the outer wall of the lower circumference of the grinding tank, a screening disc is fixedly installed in the grinding tank, the screening disc is provided with annularly distributed screening holes, and a dust suction type grinding mechanism is arranged in the grinding tank;

[0008] The dust suction type grinding mechanism comprises a rotating shaft, a grinding roller fixedly connected to the rotating shaft, a dust suction box fixedly connected to the outer wall of the top of the grinding tank, a dust suction electric fan fixedly installed in the dust suction box, a drawer installed in the dust suction box and a dust filter fixedly connected in the drawer.

[0009] Preferably, the top of the dust box is connected to the upper part of the grinding jar through a dust pipe, and the top and bottom of the drawer are both open structures.

[0010] Preferably, the dust suction fan is located below the drawer, and two handles are symmetrically welded to the front outer wall of the drawer.

[0011] Preferably, the bottom end of the rotating shaft is connected to the central inner wall of the screening disk through a bearing, a brush is fixedly connected to the bottom end of the rotating shaft, and the bristles evenly distributed on the top of the brush are in contact with the surface of the screening disk.

[0012] Preferably, a feed port is provided on the outer wall of the circumferential upper portion of the grinding jar, a discharge hopper is fixedly connected to the bottom of the grinding jar, and a valve is installed below the discharge hopper.

[0013] Preferably, a ventilation hole is provided at the bottom of the dust collection box, the top end of the rotating shaft is connected to the top center inner wall of the grinding jar through a bearing, and the top end of the rotating shaft is coaxially fixedly connected to the output shaft of the dust collection fan.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model facilitates effective screening of sand and gravel raw materials through the screening disc, so that the size of the ground raw materials can be more uniform, and the screening holes on the screening disc can be continuously cleaned through the rotation of the brush at the bottom of the rotating shaft, so that the probability of clogging of the screening disc can be effectively reduced;

[0016] 2. The utility model is provided with a dust suction grinding mechanism, which is convenient for dust removal during the grinding process, and can effectively reduce the environmental pollution caused by a large amount of dust overflowing into the external environment during the grinding process, which is beneficial to human health. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall front view of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the local parts of the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model after the drawer is pulled out;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the connection between the screening disc and the brush in the utility model.

[0021] In the figure: 1. Grinding jar; 2. Screening plate; 3. Rotating shaft; 4. Grinding roller; 5. Dust suction box; 6. Dust suction fan; 7. Drawer; 8. Dust filter; 9. Dust suction pipe; 10. Brush; 11. Feed inlet; 12. Discharge hopper; 13. Valve; 14. Support frame; 15. Ventilation hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Example

[0024] Reference Figure 1-4, a machine-made sand grinding device, comprising a grinding tank 1 and a dust suction type grinding mechanism;

[0025] Furthermore, three annular support frames 14 are welded to the outer wall of the lower circumference of the grinding tank 1, a feed inlet 11 is provided on the outer wall of the upper circumference of the grinding tank 1, a discharge hopper 12 is fixedly connected to the bottom of the grinding tank 1, and a valve 13 is installed below the discharge hopper 12;

[0026] Furthermore, a screening disc 2 is fixedly installed in the grinding tank 1, and a ring-shaped screening hole is opened on the screening disc 2, so that the sandstone raw material can be effectively screened through the screening disc 2, so that the size of the ground raw material can be more uniform;

[0027] Further, the dust suction type grinding mechanism comprises:

[0028] A rotating shaft 3 and a grinding roller 4 located in the grinding tank 1, wherein the grinding roller 4 is fixedly connected to the rotating shaft 3 and located above the screening disc 2;

[0029] A dust collecting box 5 and a dust collecting electric fan 6. The dust collecting box 5 is fixedly connected to the top outer wall of the grinding jar 1. The top of the dust collecting box 5 is connected to the upper part of the grinding jar 1 through a dust collecting pipe 9. The dust collecting electric fan 6 is fixedly installed in the dust collecting box 5.

[0030] Drawer 7, dust filter 8, the drawer 7 is installed in the dust box 5, the dust suction fan 6 is located below the drawer 7, the dust filter 8 is fixedly connected to the drawer 7, the top and bottom of the drawer 7 are both open structures, and the front outer wall of the drawer 7 is symmetrically welded with two handles;

[0031] Furthermore, the bottom end of the rotating shaft 3 is connected to the central inner wall of the screening disc 2 through a bearing, and a brush 10 is fixedly connected to the bottom end of the rotating shaft 3, and the bristles evenly distributed on the top of the brush 10 are in contact with the surface of the screening disc 2;

[0032] Furthermore, a ventilation hole 15 is provided at the bottom of the dust collection box 5 , the top end of the rotating shaft 3 is connected to the top center inner wall of the grinding tank 1 through a bearing, and the top end of the rotating shaft 3 is coaxially fixedly connected to the output shaft of the dust collection fan 6 .

[0033] The working principle of this embodiment is as follows: first, the sand and stone raw materials to be ground are poured into the grinding tank 1 from the feed port 11, and then the dust suction fan 6 is started, and the output shaft of the dust suction fan 6 controls the grinding roller 4 and the brush 10 connected to the rotating shaft 3 to rotate synchronously;

[0034] Secondly, the high-speed rotation of the grinding roller 4 can fully grind the incoming sand and stone raw materials, and in the process of grinding, the suction force generated during the movement of the dust-absorbing electric fan 6 can suck the generated dust from the dust suction pipe 9 into the dust suction box 5. At this time, under the filtration and interception of the dust filter 8, the incoming dust will be uniformly collected in the drawer 7, which is convenient for dust removal during the grinding process, and can effectively reduce the environmental pollution caused by the large amount of dust overflowing into the external environment during the grinding process, which is beneficial to human health;

[0035] Moreover, the qualified sand and gravel raw materials can be screened through the screening plate 2, so that the size of the ground raw materials can be more uniform, and the rotation of the brush 10 at the bottom of the rotating shaft 3 can continuously clean the screening holes on the screening plate 2, so that the probability of clogging of the screening plate 2 can be effectively reduced;

[0036] Finally, the qualified sand and gravel raw materials are discharged from the discharge hopper 12 by opening the valve 13.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A machine-made sand grinding device, comprising a grinding jar (1), wherein three annularly distributed support frames (14) are welded to the outer wall of the lower circumference of the grinding jar (1), characterized in that: A screening disc (2) is fixedly installed in the grinding jar (1), the screening disc (2) is provided with screening holes distributed in an annular pattern, and a dust suction type grinding mechanism is provided in the grinding jar (1); The dust suction type grinding mechanism comprises a rotating shaft (3), a grinding roller (4) fixedly connected to the rotating shaft (3), a dust suction box (5) fixedly connected to the top outer wall of the grinding tank (1), a dust suction electric fan (6) fixedly installed in the dust suction box (5), a drawer (7) installed in the dust suction box (5), and a dust filter (8) fixedly connected in the drawer (7).

2. The machine-made sand grinding device according to claim 1, characterized in that: The top of the dust collection box (5) is connected to the upper part of the grinding jar (1) through a dust collection pipe (9), and the top and bottom of the drawer (7) are both open structures.

3. The machine-made sand grinding device according to claim 1, characterized in that: The dust suction fan (6) is located below the drawer (7), and two handles are symmetrically welded to the front outer wall of the drawer (7).

4. The machine-made sand grinding device according to claim 1, characterized in that: The bottom end of the rotating shaft (3) is connected to the central inner wall of the screening disc (2) through a bearing, and a brush (10) is fixedly connected to the bottom end of the rotating shaft (3), and the bristles evenly distributed on the top of the brush (10) are in contact with the surface of the screening disc (2).

5. The machine-made sand grinding device according to claim 1, characterized in that: The grinding jar (1) has a feed inlet (11) formed on its circumferential upper outer wall. The bottom of the grinding jar (1) is fixedly connected to a discharge hopper (12), and a valve (13) is installed below the discharge hopper (12).

6. The machine-made sand grinding device according to claim 1, characterized in that: The bottom of the dust collecting box (5) is provided with a ventilation hole (15), the top end of the rotating shaft (3) is connected to the top center inner wall of the grinding tank (1) through a bearing, and the top end of the rotating shaft (3) is coaxially fixedly connected to the output shaft of the dust collecting electric fan (6).

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