Raw material crushing and grinding device

Abstract

The utility model relates to a raw material crushing and grinding device, which belongs to the technical field of grinding equipment and comprises a grinding box, a grinding shaft and a grinding motor, a screen plate is fixed on the upper portion of the grinding box, a crushing rod is fixed on the grinding shaft, a crushing hammer is fixed on the crushing rod, and a hollow grinding support cylinder is fixed on the grinding shaft below the screen plate. And a plurality of rows of grinding wheels are rotatably installed on the outer wall of the grinding supporting cylinder in the axial direction, a plurality of grinding wheels are evenly arranged on the periphery of the grinding supporting cylinder in each row, grinding ring plates fixed to the grinding box are arranged on the outer sides of the grinding wheels in each row, and grinding grooves matched with the grinding wheels are formed in the inner wall of each grinding ring plate. Before materials are ground, hardened materials are smashed and crushed through the crushing rod and the crushing hammer, then the materials are screened through the screen plate and then ground, blocking is prevented, the materials are thrown into the grinding wheel and the grinding groove on the outer side through the grinding supporting cylinder to be ground in the grinding process, and the grinding effect is better.

Description

Technical Field

[0001] The utility model relates to a raw material crushing and grinding device, belonging to the technical field of grinding equipment. Background Art

[0002] Pigments are mostly powdery granular substances, generally insoluble in water, organic solvents, oils, resins and other media, but can be evenly dispersed in these media and color the media. In the process of pigment production, crushing and grinding equipment is needed to refine the materials. However, in the current crushing and grinding equipment, the materials directly enter the grinding machine for grinding during grinding. However, there will be a phenomenon of caking in the materials, and directly entering the grinding machine for grinding is likely to cause blockage of the grinding machine. Content of the Utility Model

[0003] The utility model provides a raw material crushing and grinding device to solve the problem that in the current equipment, the materials directly enter the grinding machine for grinding, and the caked materials are likely to cause blockage of the grinding machine.

[0004] The utility model relates to a raw material crushing and grinding device, including a grinding box. The top of the grinding box is provided with a feed inlet, the bottom of the grinding box is provided with a discharge outlet, a grinding shaft is arranged in the grinding box, a grinding motor is fixed at the top of the grinding shaft, a screen plate is fixed at the upper part of the grinding box, a crushing rod is fixed on the grinding shaft above the screen plate, a crushing hammer is fixed on the crushing rod, a hollow grinding support cylinder is fixed on the grinding shaft below the screen plate, the top of the grinding support cylinder is closed, and multiple rows of grinding wheels are rotatably installed along the axial direction on the outer wall of the grinding support cylinder. Each row of grinding wheels is evenly provided with a plurality of grinding wheels along the outer circumference of the grinding support cylinder. A grinding ring plate fixed on the grinding box is arranged outside each row of grinding wheels, and a grinding groove matched with the grinding wheel is arranged on the inner wall of each grinding ring plate.

[0005] As a preference, support plates are rotatably installed at the upper and lower ends of each grinding wheel, and the support plates are fixed on the outer wall of the grinding support cylinder.

[0006] As a preference, a guide slope is arranged outside the top of each grinding groove, and a guide material throwing disc is arranged above each row of grinding wheels. The guide material throwing disc is fixed on the grinding support cylinder, which can facilitate the falling materials to enter the grinding groove.

[0007] As a preference, a guide material cone disc is fixed in the middle of the top of the grinding support cylinder to facilitate throwing the materials outwards.

[0008] As a preference, the grinding box includes an upper grinding cylinder body, a middle grinding cylinder body and a lower grinding cylinder body. The upper and lower parts of the middle grinding cylinder body are connected to the upper grinding cylinder body and the lower grinding cylinder body through connecting flanges respectively. The middle grinding cylinder body is formed by splicing two semi-cylindrical bodies. A fixed flange is arranged at the joint of the two semi-cylindrical bodies, fastening bolts are arranged on the fixed flange, and the grinding ring plate is fixed on the middle grinding cylinder body, which is convenient for installation and maintenance.

[0009] As a preference, a support hole is provided in the middle of the screen plate, a support sleeve is fixed in the support hole, the grinding shaft is rotatably installed in the support sleeve through a bearing, and a bearing gland is provided above the bearing.

[0010] The utility model has the following beneficial effects:

[0011] Before the material is ground, it is first crushed by the crushing rod and the crushing hammer to break up the agglomerated material, and then screened by the screen plate before being ground, preventing blockage. During grinding, the material is thrown by the grinding support cylinder to the outer grinding wheel and grinding groove for grinding, and the grinding effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the utility model;

[0013] Figure 2 is a schematic structural diagram at the grinding wheel;

[0014] Figure 3 is Figure 1 an enlarged schematic structural diagram at A in

[0015] In the figure: 1, grinding motor; 2, feed inlet; 3, grinding shaft; 4, upper grinding cylinder; 5, crushing hammer; 6, crushing rod; 7, screen plate; 8, connecting flange; 9, middle grinding cylinder; 10, fixed flange; 11, grinding ring plate; 12, grinding support cylinder; 13, grinding wheel; 14, lower grinding cylinder; 15, discharge port; 16, grinding groove; 17, guide slope; 18, guide throwing disc; 19, support plate; 20, guide cone disc; 21, support sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The following further describes the utility model with reference to the embodiments.

[0017] Embodiment 1, as Figures 1 to 3 shown, the utility model is a raw material crushing and grinding device, including a grinding box. A feed inlet 2 is provided at the top of the grinding box, a discharge port 15 is provided at the bottom of the grinding box, a grinding shaft 3 is provided in the grinding box, a grinding motor 1 is fixed at the top of the grinding shaft 3, a screen plate 7 is fixed above the grinding box, a crushing rod 6 is fixed on the grinding shaft 3 above the screen plate 7, a crushing hammer 5 is fixed on the crushing rod 6, a hollow grinding support cylinder 12 is fixed on the grinding shaft 3 below the screen plate 7, the top of the grinding support cylinder 12 is closed, multiple rows of grinding wheels 13 are rotatably installed along the axial direction on the outer wall of the grinding support cylinder 12, a plurality of grinding wheels 13 are evenly arranged along the outer circumference of the grinding support cylinder 12 in each row, and a grinding ring plate 11 fixed on the grinding box is provided outside each row of grinding wheels 13, and a grinding groove 16 cooperating with the grinding wheels 13 is provided on the inner wall of each grinding ring plate 11.

[0018] During operation, materials enter the grinding box from the feed inlet 2, and then are crushed by the crushing rod 6 and the crushing hammer 5 to break up the agglomerated materials. Then, they are screened by the screen plate 7. The materials of qualified size fall onto the top of the grinding support cylinder 12, and then are thrown outward under the action of centrifugal force. When the materials fall onto the grinding groove 16, they are ground by the grinding wheel 13, and then the materials fall downward and are discharged from the discharge outlet 15.

[0019] Embodiment 2: On the basis of Embodiment 1, support plates 19 are rotatably installed at both the upper and lower ends of each grinding wheel 13, and the support plates 19 are fixed to the outer wall of the grinding support cylinder 12.

[0020] A guide slope 17 is provided on the outer side of the top of each grinding groove 16, and a guide throwing disc 18 is provided above each row of grinding wheels 13. The guide throwing disc 18 is fixed to the grinding support cylinder 12.

[0021] A guide cone disc 20 is fixed in the middle of the top of the grinding support cylinder 12.

[0022] The grinding box includes a grinding upper cylinder body 4, a grinding middle cylinder body 9, and a grinding lower cylinder body 14. The upper and lower parts of the grinding middle cylinder body 9 are connected to the grinding upper cylinder body 4 and the grinding lower cylinder body 14 through connecting flanges 8 respectively. Sealing rings are provided at the connecting flanges 8. The grinding middle cylinder body 9 is composed of two semi-cylindrical bodies spliced together. A fixed flange 10 is provided at the joint of the two semi-cylindrical bodies, and a gasket is provided at the fixed flange 10. The grinding ring plate 11 is also divided into two parts at the fixed flange 10. Fastening bolts are provided on the fixed flange 10, and the grinding ring plate 11 is fixed to the grinding middle cylinder body 9. During installation, after installing the grinding support cylinder 12 and the grinding wheels 13, the grinding middle cylinder body 9 composed of two semi-cylindrical bodies is buckled on the grinding wheels 13, and then the fastening bolts are tightened. Then, the grinding middle cylinder body 9 is connected to the grinding upper cylinder body 4 and the grinding lower cylinder body 14 by using the connecting flanges 8 and the fixing bolts.

[0023] A support hole is provided in the middle of the screen plate 7, and a support sleeve 21 is fixed in the support hole. The grinding shaft 3 is rotatably installed in the support sleeve 21 through a bearing, and a bearing gland is provided above the bearing.

[0024] In addition, it should be understood that although this specification is described according to the embodiments, not each embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0025] In the description of the present utility model, the orientation or positional relationship indicated by terms such as "inner", "outer", "longitudinal", "transverse", "upper", "lower", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model rather than requiring the present utility model to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

Claims

1. A raw material crushing and grinding device, comprising a grinding box. A feed inlet (2) is provided at the top of the grinding box, and a discharge outlet (15) is provided at the bottom of the grinding box. A grinding shaft (3) is provided inside the grinding box, and a grinding motor (1) is fixed to the top of the grinding shaft (3). It is characterized in that: A screen plate (7) is fixed to the upper part of the grinding box. A crushing rod (6) is fixed to the grinding shaft (3) above the screen plate (7), and a crushing hammer (5) is fixed to the crushing rod (6). A hollow grinding support cylinder (12) is fixed to the grinding shaft (3) below the screen plate (7). The top of the grinding support cylinder (12) is closed. A plurality of rows of grinding wheels (13) are rotatably installed on the outer wall of the grinding support cylinder (12) along the axial direction. A plurality of grinding wheels (13) are evenly arranged along the outer circumference of the grinding support cylinder (12) in each row. A grinding ring plate (11) fixed to the grinding box is provided outside each row of grinding wheels (13). A grinding groove (16) cooperating with the grinding wheels (13) is provided on the inner wall of each grinding ring plate (11).

2. The raw material crushing and grinding device according to claim 1, wherein: Support plates (19) are rotatably installed at the upper and lower ends of each grinding wheel (13), and the support plates (19) are fixed to the outer wall of the grinding support cylinder (12).

3. The raw material crushing and grinding device according to claim 2, characterized in that: A feeding slope (17) is provided outside the top of each grinding groove (16). A feeding throwing disc (18) is provided above each row of grinding wheels (13), and the feeding throwing disc (18) is fixed to the grinding support cylinder (12).

4. A raw material crushing and grinding device according to claim 1, characterized in that: A feeding cone disc (20) is fixed to the middle of the top of the grinding support cylinder (12).

5. A raw material crushing and grinding device according to claim 1, characterized in that: The grinding box includes a grinding upper cylinder body (4), a grinding middle cylinder body (9) and a grinding lower cylinder body (14). The grinding middle cylinder body (9) is connected to the grinding upper cylinder body (4) and the grinding lower cylinder body (14) through connecting flanges (8) above and below. The grinding middle cylinder body (9) is formed by splicing two semi-cylindrical bodies. A fixed flange (10) is provided at the connection of the two semi-cylindrical bodies. Fastening bolts are provided on the fixed flange (10), and the grinding ring plate (11) is fixed to the grinding middle cylinder body (9).

6. The raw material crushing and grinding device according to claim 1, characterized in that: A support hole is provided in the middle of the screen plate (7), and a support sleeve (21) is fixed in the support hole. The grinding shaft (3) is rotatably installed in the support sleeve (21) through a bearing, and a bearing gland is provided above the bearing.

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