Cement stone raw material crushing pretreatment device

Abstract

The utility model relates to the technical field of stone raw material crushing, in particular to a cement stone raw material crushing pretreatment device which comprises a crushing box, two parallel crushing rollers are arranged in the crushing box, the top end of the crushing box is communicated with a first feeding hopper, a conveying belt installation frame is arranged above the first feeding hopper, and a conveying belt is installed in the conveying belt installation frame. The top face of the conveying belt mounting frame is attached to the bottom face of a feeding pipe, the top end of the feeding pipe communicates with a second feeding hopper, a moving rod perpendicular to the horizontal plane is fixedly arranged at the bottom end of the conveying belt mounting frame, an electric push rod is fixedly arranged on the top face of the crushing box, and the output end of the electric push rod is fixedly connected with the lower end of the moving rod. According to the stone raw material crushing device, stone raw materials are driven by the conveying belt to enter the first feeding hopper and then enter the crushing box to be crushed by the crushing roller, the conveying belt can be driven by the electric push rod to move horizontally, and the stone raw materials evenly fall into all positions of the crushing roller.

Description

Technical Field

[0001] This utility model relates to the field of stone raw material crushing technology, specifically to a pretreatment device for crushing cement stone raw materials. Background Technology

[0002] The main purpose of adding stones to cement is to enhance the strength of cement, reduce deformation, and save costs. The stones form a hard skeleton in the cement, increasing the load-bearing capacity and compressive strength of the cement, making the cement stronger and more durable. Before adding stones to cement, they need to be crushed and pre-treated to break the large cement stone raw materials into particle sizes that meet the production requirements.

[0003] In existing crushing equipment, during the pre-processing of crushing, a conveyor belt is usually used to feed the stones into the crushing box. The conveyor belt feeds the stones into the middle part of the two crushing rollers in the crushing box. The crushing work of the stones is mainly undertaken by the middle part of the crushing rollers, while the ends of the crushing rollers rarely perform crushing work. This not only leads to low crushing efficiency, but also causes the wear rate of the middle part of the crushing rollers to be much greater than that of the ends of the crushing rollers. Utility Model Content

[0004] The purpose of this utility model is to provide a cement aggregate crushing and pretreatment device, which solves the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a pre-treatment device for crushing cement aggregate raw materials, comprising a crushing box, two parallel crushing rollers inside the crushing box, a feed hopper connected to the top of the crushing box, a conveyor belt mounting frame above the feed hopper, a conveyor belt installed inside the conveyor belt mounting frame, the top surface of the conveyor belt mounting frame being in contact with the bottom surface of the feed pipe, a feed hopper connected to the top of the feed pipe, a movable rod perpendicular to the horizontal plane fixedly installed at the bottom of the conveyor belt mounting frame, and an electric push rod fixedly installed on the top surface of the crushing box, the output end of the electric push rod being fixedly connected to the lower end of the movable rod.

[0007] Furthermore, fixed seats are fixedly provided on both sides of the top surface of the crushing box. The fixed seats have smooth grooves that are slidably connected to the slider. The top of the slider is fixedly connected to a connecting rod one that is perpendicular to the horizontal plane. The top of the connecting rod one is fixedly connected to a connecting rod two. The connecting rod two is fixedly connected to the side of the conveyor belt mounting frame.

[0008] Furthermore, the top surface height of the conveyor belt is lower than the top surface height of the conveyor belt mounting frame.

[0009] Furthermore, the second feed hopper is fixedly connected to a support rod perpendicular to the horizontal plane, and the support rod is fixedly connected to one side of the fixed base.

[0010] Furthermore, a reinforcing rod is fixedly provided on the bottom surface of the fixed base, and the reinforcing rod is fixedly connected to the side of the crushing box.

[0011] Furthermore, the bottom end of the crushing box is connected to the discharge pipe.

[0012] Furthermore, the bottom of the crushing box is fixedly provided with multiple support legs perpendicular to the horizontal plane.

[0013] This utility model has the following beneficial effects:

[0014] This utility model uses an electric push rod to drive the conveyor belt mounting frame and the conveyor belt to move horizontally. Stone raw materials are put in through the second feed hopper. The raw materials fall above the conveyor belt through the feed hopper and feed pipe. The conveyor belt sends the stone raw materials into the first feed hopper. The electric push rod drives the conveyor belt to move so that the stone raw materials fall to different positions, preventing all the stones from accumulating in one place on the crushing roller for crushing.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the crushing box structure in the middle;

[0019] Figure 3 for Figure 1 A partial three-dimensional schematic diagram of the structure;

[0020] Figure 4 for Figure 1 A schematic diagram of the fixed base and feed hopper structure in the middle;

[0021] The attached diagram lists the components represented by each number as follows:

[0022] In the diagram: 1. Crushing box; 101. Crushing roller; 102. Support leg; 2. Feed hopper one; 3. Discharge pipe; 5. Fixed seat; 501. Smoothing groove; 502. Reinforcing rod; 6. Sliding block; 7. Connecting rod one; 8. Connecting rod two; 9. Conveyor belt mounting frame; 901. Conveyor belt; 10. Support rod; 11. Feed pipe; 12. Feed hopper two; 13. Moving rod; 14. Electric push rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Please see Figure 1-4As shown, this utility model is a pre-treatment device for crushing cement aggregate raw materials, including a crushing box 1. Two parallel crushing rollers 101 are installed inside the crushing box 1. A feed hopper 2 is connected to the top of the crushing box 1. A conveyor belt 901 mounting frame 9 is installed above the feed hopper 2. A conveyor belt 901 is installed inside the conveyor belt 901 mounting frame 9. The top surface of the conveyor belt 901 mounting frame 9 is in contact with the bottom surface of the feed pipe 11. A feed hopper 12 is connected to the top of the feed pipe 11. A movable rod 13 perpendicular to the horizontal plane is fixedly installed at the bottom end of the conveyor belt 901 mounting frame 9. An electric push rod 14 is fixedly installed on the top surface of the crushing box 1. The output end of the electric push rod 14 is fixedly connected to the lower end of the movable rod 13. The feed hopper 12 is perpendicular to the horizontal plane. A flat support rod 10 is fixedly connected, and the support rod 10 is fixedly connected to one side of the fixed seat 5. In this embodiment, the moving direction of the conveyor belt 901 is parallel to the crushing roller 101. The stone raw material is put into the second feed hopper 12. The stone raw material falls onto the conveyor belt 901 through the second feed hopper 12 and the feed pipe 11. The stone raw material enters the first feed hopper 2 under the drive of the conveyor belt 901. The stone raw material falls into the crushing box 1 through the first feed hopper 2. Then the crushing roller 101 crushes the stone raw material. The moving rod 13 can be moved by the electric push rod 14, thereby driving the conveyor belt 901 mounting frame 9 and the conveyor belt 901 to move horizontally, adjusting the horizontal position of the stone raw material when it falls from the conveyor belt 901, so that the stone raw material falls evenly on all parts of the crushing roller 101.

[0026] In this embodiment, fixed seats 5 are fixedly installed on both sides of the top surface of the crushing box 1. The fixed seats 5 have smooth grooves 501 that are slidably connected to the slider 6. The top end of the slider 6 is fixedly connected to the connecting rod 7 perpendicular to the horizontal plane. The top end of the connecting rod 7 is fixedly connected to the connecting rod 8. The connecting rod 8 is fixedly connected to the side of the conveyor belt 901 mounting frame 9. In this embodiment, the cooperation of the fixed seats 5, slider 6, connecting rod 7 and connecting rod 8 can not only guide the movement of the conveyor belt 901 mounting frame 9, but also support the conveyor belt 901 mounting frame 9, thereby improving the stability of the conveyor belt 901 mounting frame 9.

[0027] In this embodiment, the top surface of the conveyor belt 901 is lower than the top surface of the mounting frame 9. There is a height difference between the top surface of the mounting frame and the conveyor belt 901, which creates a gap between the feed pipe 11 and the conveyor belt 901, allowing the falling stone material to pass through the gap between the feed pipe 11 and the conveyor belt 901.

[0028] The bottom surface of the fixed base 5 is fixedly provided with a reinforcing rod 502, which is fixedly connected to the side of the crushing box 1. In this embodiment, the reinforcing rod 502 reinforces the fixed base 5 and improves the stability of the fixed base 5.

[0029] The bottom end of the crushing box 1 is connected to the discharge pipe 3. The bottom end of the crushing box 1 is fixedly provided with multiple support legs 102 perpendicular to the horizontal plane. In this embodiment, the support legs 102 support the crushing box 1. The crushed stone raw material leaves the crushing box 1 through the discharge pipe 3.

[0030] Understandably, in this utility model, the stone raw material enters the feed hopper 2 under the drive of the conveyor belt 901, and then enters the crushing box 1 to be crushed by the crushing roller 101. The electric push rod 14 can drive the conveyor belt 901 to move horizontally, so that the stone raw material falls evenly to various parts of the crushing roller 101.

[0031] A specific application of this embodiment is as follows: When crushing stone raw materials, the electric push rod 14 is activated, which drives the conveyor belt 901 mounting frame 9 and the conveyor belt 901 to move horizontally. Then, the stone raw materials are fed into the second feed hopper 12. The raw materials fall onto the conveyor belt 901 through the second feed hopper 12 and the feed pipe 11. The stone raw materials enter the first feed hopper 2 under the drive of the conveyor belt 901. The stone raw materials enter the crushing box 1 through the first feed hopper 2. The crushing roller 101 in the crushing box 1 crushes the stone raw materials. The horizontal movement of the conveyor belt 901 under the drive of the electric push rod 14 changes the horizontal position of the stone raw materials when they fall from the conveyor belt 901, so that the stone raw materials fall evenly to all parts of the crushing roller 101. This improves the crushing rate of the stone raw materials and also prevents the stone raw materials from being pushed and crushed at a certain point of the crushing roller 101, which would cause the wear rate at that point to be much greater than that at other parts of the crushing roller 101. The crushed stone raw materials leave the crushing box 1 through the discharge pipe 3.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A cement aggregate crushing and pretreatment device, comprising a crushing box (1), wherein two parallel crushing rollers (101) are arranged inside the crushing box (1), characterized in that: The top of the crushing box (1) is connected to a feed hopper (2), and a conveyor belt mounting frame (9) is provided above the feed hopper (2). A conveyor belt (901) is installed inside the conveyor belt mounting frame (9). The top surface of the conveyor belt mounting frame (9) is in contact with the bottom surface of the feed pipe (11). The top of the feed pipe (11) is connected to a feed hopper (12). A moving rod (13) perpendicular to the horizontal plane is fixedly provided at the bottom of the conveyor belt mounting frame (9). An electric push rod (14) is fixedly provided on the top surface of the crushing box (1). The output end of the electric push rod (14) is fixedly connected to the lower end of the moving rod (13).

2. The cement aggregate crushing and pretreatment device according to claim 1, characterized in that: The top surface of the crushing box (1) is fixedly provided with a fixed seat (5) on both sides. The fixed seat (5) has a smooth groove (501) that is slidably connected to the slider (6). The top of the slider (6) is fixedly connected to the connecting rod one (7) perpendicular to the horizontal plane. The top of the connecting rod one (7) is fixedly connected to the connecting rod two (8). The connecting rod two (8) is fixedly connected to the side of the conveyor belt mounting frame (9).

3. The cement aggregate crushing and pretreatment device according to claim 1, characterized in that: The top surface height of the conveyor belt (901) is lower than the top surface height of the conveyor belt mounting frame (9).

4. The cement aggregate crushing and pretreatment device according to claim 2, characterized in that: The second feeding hopper (12) is fixedly connected to a support rod (10) perpendicular to the horizontal plane, and the support rod (10) is fixedly connected to one side of the fixed seat (5).

5. The cement aggregate crushing and pretreatment device according to claim 2, characterized in that: A reinforcing rod (502) is fixedly installed on the bottom surface of the fixed base (5), and the reinforcing rod (502) is fixedly connected to the side of the crushing box (1).

6. The cement aggregate crushing and pretreatment device according to claim 1, characterized in that: The bottom end of the crushing box (1) is connected to the discharge pipe (3).

7. The cement aggregate crushing and pretreatment device according to claim 1, characterized in that: The bottom of the crushing box (1) is fixedly provided with multiple support legs (102) perpendicular to the horizontal plane.

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