Screening and crushing device for light-burned dolomite

Abstract

The utility model discloses a light-burned dolomite screening and crushing device which comprises a hopper, a conveying bin and a crushing bin, the hopper is arranged on the conveying bin, a conveying belt is arranged in the conveying bin, an air cylinder is arranged on the conveying bin, the push-out end of the air cylinder is connected with a material control insertion plate, the material control insertion plate is inserted in the conveying bin, and the crushing bin is arranged on the conveying bin. A crushing bin is arranged at the front end of the bottom of the conveying bin, a screening bin is arranged at the rear end of the bottom of the conveying bin, a crushing cavity is formed in the crushing bin, the upper portion of the crushing cavity corresponds to the tail end of the conveying belt, the bottom of the crushing cavity is of an arc structure, and discharging strip holes are formed in the bottom of the crushing cavity. The bottom face of the crushing bin is of an inclined face structure, a discharging bin is arranged between the crushing bin and the screening bin in a communicating mode, the bottom of the discharging bin is of an open structure, and a screen is obliquely arranged in the crushing bin. The utility model aims to provide the light-burned dolomite screening and crushing device, which can adjust the material feeding quantity on the crushing rollers and is convenient for screening materials.

Description

Technical Field

[0001] The utility model relates to the technical field of crushing, in particular to a screening and crushing device for light-burned dolomite. Background Art

[0002] Light-burned dolomite, also known as caustic dolomite, is calcined from dolomite raw materials at about 1000°C. It has the characteristics of being white, having strong adhesiveness, solidifying power, and good fire resistance and heat insulation performance. It is suitable for interior and exterior wall coatings and can be used as a raw material for cement, glass, and ceramics in the building materials industry. Light-burned dolomite is mainly used in steelmaking to improve the fluidity of steel slag and is used as a slag-making agent. In order to enable dolomite to fully contact with steel during the steelmaking process, dolomite needs to be crushed. In the existing crushing device, materials will accumulate at the crushing roller during the feeding process, which easily leads to blockage or even inability to crush. For example, the utility model of CN216261254U records a three-stage dolomite crushing device. Materials directly enter between two primary crushing mechanisms 17 through a guide plate 15 in the feeding port 15. If the feeding volume is too large, the materials will accumulate between the two primary crushing mechanisms 17 and affect the crushing process. In view of this technical problem, the utility model provides a screening and crushing device for light-burned dolomite. Content of the Utility Model

[0003] The purpose of the utility model is to provide a screening and crushing device for light-burned dolomite, which can adjust the feeding volume of materials on the crushing roller and is convenient for screening materials.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A screening and crushing device for light-burned dolomite includes a hopper, a conveying bin, and a crushing bin. The hopper is arranged on the conveying bin. A conveyor belt is arranged in the conveying bin. A cylinder is arranged on the conveying bin. The pushing end of the cylinder is connected with a material control plugboard, and the material control plugboard is inserted into the conveying bin. The front end of the bottom of the conveying bin is provided with a crushing bin, and the rear end of the bottom of the conveying bin is provided with a screening bin. A crushing chamber is arranged in the crushing bin. The upper part of the crushing chamber corresponds to the end of the conveyor belt, and the bottom of the crushing chamber is of an arc structure. A discharge strip hole is arranged at the bottom of the crushing chamber. A crushing roller is rotatably arranged in the crushing chamber. The bottom surface of the crushing bin is of an inclined surface structure. A discharge bin is communicated between the crushing bin and the screening bin. The bottom of the discharge bin is of an open structure. A screen mesh is inclinedly arranged in the crushing bin.

[0006] Further, a guide plate is arranged in the hopper, and the guide plate is inclined.

[0007] Further, the number of the crushing rollers is 2 and they rotate towards each other. Crushing teeth are staggered on the two crushing rollers.

[0008] Further, the number of the crushing rollers is one. Impact bars are arranged on the circumferential surface of the crushing roller, and stop bars are arranged on the inner wall of the crushing chamber.

[0009] Further, a first discharge port is arranged below the side wall of the crushing bin. Second and third discharge ports are respectively arranged on both sides of the discharge bin. The second discharge port is fitted with the first discharge port, and the lower edge of the screen is in contact with the lower edge of the third discharge port.

[0010] Further, a guide chute is arranged at the inner bottom of the screening bin, and a discharge port is arranged between the guide chutes. A feed bin is arranged at the upper part of the screening bin, and support columns are arranged on both sides of the screening bin and the crushing bin.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] A conveying bin is arranged below the hopper of the present utility model, and a conveyor belt is arranged in the conveying bin, so that the feeding process can be carried out orderly, preventing materials from accumulating in the crushing chamber. In addition, a material control plugboard is arranged above the conveying bin, and the depth of the material control plugboard is controlled by a cylinder, so as to control the thickness of the materials on the conveyor belt, thereby reducing the feeding pressure. A screening bin is arranged below the conveying bin to facilitate the screening of materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the front view of the present utility model.

[0014] Figure 2 is the schematic diagram of the internal structure of the present utility model.

[0015] Figure 3 is the schematic diagram of another embodiment of the crushing roller.

[0016] In the figure, 1-hopper, 2-conveying bin, 3-cylinder, 4-material control plugboard, 5-crushing bin, 51-first discharge port, 6-discharge bin, 61-third discharge port, 62-second discharge port, 7-support column, 8-discharge port, 9-screening bin, 10-feed bin, 11-guide plate, 12-conveyor belt, 13-crushing chamber, 14-discharge strip hole, 15-crushing roller, 16-impact bar, 17-stop bar, 18-guide chute. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model, and are not used to limit the present utility model.

[0018] Embodiment 1:

[0019] Reference Figure 1-2As shown in the figure, the utility model provides a screening and crushing device for light-burned dolomite, which includes a hopper 1, a conveying bin 2 and a crushing bin 5. The hopper 1 is arranged on the conveying bin 2. A conveyor belt 12 is arranged in the conveying bin 2. A cylinder 3 is arranged on the conveying bin 2. The pushing end of the cylinder 3 is connected with a material control plug board 4. The material control plug board 4 is inserted into the conveying bin 2. The insertion depth of the material control plug board 4 is controlled by the cylinder 3, so as to control the spreading degree of the material. The front end of the bottom of the conveying bin 2 is provided with a crushing bin 5, and the rear end of the bottom of the conveying bin 2 is provided with a screening bin 9. A crushing chamber 13 is arranged in the crushing bin 5. The upper part of the crushing chamber 13 corresponds to the end of the conveyor belt 12, so that the material is sent into the crushing chamber 13 through the conveyor belt 12. The bottom of the crushing chamber 13 is of an arc structure, and discharge strip holes 14 are arranged at the bottom of the crushing chamber 13 to discharge the crushed material. A crushing roller 15 is rotatably arranged in the crushing chamber 13. The bottom surface of the crushing bin 5 is of an inclined plane structure to facilitate the discharge of the crushed material. A discharge bin 6 is communicated between the crushing bin 5 and the screening bin 9. The bottom of the discharge bin 6 is of an open structure. A screen mesh is inclinedly arranged in the crushing bin 5 to facilitate the screening operation.

[0020] A guide plate 11 is arranged in the hopper 1. The guide plate 11 is inclined to buffer the material onto the conveyor belt 12.

[0021] Embodiment 2:

[0022] On the basis of the above embodiment, for the setting of the crushing roller 15, the utility model provides two implementation modes. The first mode is that the number of the crushing rollers 15 is one. Impact strips 16 are arranged on the circumferential surface of the crushing roller 15, and a retaining strip 17 is arranged on the inner wall of the crushing chamber 13. This mode is hammer crushing, and the material is struck on the retaining strip 17 by the rotating impact strips 16 for crushing. The second mode is as Figure 3 shown. The number of the crushing rollers 15 is two and they rotate towards each other. Crushing teeth are staggered on the two crushing rollers 15, and a guide plate is arranged at the port of the crushing chamber 13. This mode is extrusion and shearing crushing, and the material is crushed by the crushing teeth rotating towards each other through extrusion and shearing.

[0023] Embodiment 3:

[0024] On the basis of the above embodiment, another embodiment of the utility model is that a first discharge port 51 is arranged below the side wall of the crushing bin 5. Second discharge ports 62 and third discharge ports 61 are respectively arranged on both sides of the discharge bin 6. The second discharge port 62 is in contact with the first discharge port 51. The lower edge of the screen mesh is in contact with the lower edge of the third discharge port 61. The material in the crushing bin 5 is discharged from the discharge bin 6 through the first discharge port 51 and the second discharge port 62. The material in the screening bin 9 is discharged from the discharge bin 6 through the third discharge port 61.

[0025] Example 4:

[0026] On the basis of the above embodiments, another embodiment of the present utility model is that, in order to facilitate the discharge of the fine-grained materials screened out in the screening bin 9. A material guiding inclined plate 18 is arranged at the bottom inside the screening bin 9, and a discharge port 8 is arranged between the material guiding inclined plates 18. A feed bin 10 is arranged at the upper part of the screening bin 9, and support columns 7 are arranged on both sides of the screening bin 9 and the crushing bin 5.

[0027] Although the present utility model has been described herein with reference to a plurality of illustrative embodiments of the present utility model, it should be understood that those skilled in the art can design many other modifications and embodiments that will fall within the scope of the principles and spirit disclosed in this application. More specifically, within the scope of the disclosure, the drawings and the claims of this application, various deformations and improvements can be made to the components or the layout of the subject combination layout. In addition to the deformations and improvements made to the components or the layout, other uses will also be obvious to those skilled in the art.

Claims

1. A screening and crushing device for light-burned dolomite, comprising a hopper (1), a conveying bin (2) and a crushing bin (5), characterized in that: The hopper (1) is arranged on the conveying bin (2). A conveyor belt (12) is arranged in the conveying bin (2). A cylinder (3) is arranged on the conveying bin (2). The pushing end of the cylinder (3) is connected with a material control plugboard (4). The material control plugboard (4) is inserted into the conveying bin (2). A crushing bin (5) is arranged at the front end of the bottom of the conveying bin (2), and a screening bin (9) is arranged at the rear end of the bottom of the conveying bin (2). A crushing chamber (13) is arranged in the crushing bin (5). The upper part of the crushing chamber (13) corresponds to the end of the conveyor belt (12), and the bottom of the crushing chamber (13) is of an arc structure. A discharge strip hole (14) is arranged at the bottom of the crushing chamber (13). A crushing roller (15) is rotatably arranged in the crushing chamber (13). The bottom surface of the crushing bin (5) is of an inclined plane structure. A discharge bin (6) is communicated between the crushing bin (5) and the screening bin (9). The bottom of the discharge bin (6) is of an open structure. A screen mesh is obliquely arranged in the crushing bin (5). A first discharge port (51) is arranged below the side wall of the crushing bin (5). A second discharge port (62) and a third discharge port (61) are respectively arranged on both sides of the discharge bin (6). The second discharge port (62) is in fit with the first discharge port (51). The lower edge of the screen mesh contacts with the lower edge of the third discharge port (61). A guide inclined plate (18) is arranged at the inner bottom of the screening bin (9), and a discharge port (8) is arranged between the guide inclined plates (18). A feed bin (10) is arranged at the upper part of the screening bin (9). Support columns (7) are arranged on both sides of the screening bin (9) and the crushing bin (5).

2. The screening and crushing device for light-burned dolomite according to claim 1, characterized in that A guide plate (11) is arranged in the hopper (1), and the guide plate (11) is obliquely arranged.

3. A screening and crushing device for light burned dolomite according to claim 1, characterized in that The number of the crushing rollers (15) is two and they rotate towards each other. Crushing teeth are arranged alternately on the two crushing rollers (15).

4. A screening and crushing device for light burned dolomite according to claim 1, characterized in that The number of the crushing rollers (15) is one. Impact strips (16) are arranged on the circumferential surface of the crushing roller (15), and retaining strips (17) are arranged on the inner wall of the crushing chamber (13).

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