Raw material crushing equipment for cement processing

Abstract

The utility model provides raw material crushing equipment for cement processing. Comprising a crushing box, scattering rods, large crushing rollers which are symmetrically arranged and connected in a meshed mode and small crushing rollers which are symmetrically arranged and connected in a meshed mode are sequentially and rotationally connected between the inner side walls of the crushing box from top to bottom, and a driving assembly which drives the scattering rods, the large crushing rollers and the small crushing rollers to rotate at the same time is arranged on one outer side wall of the crushing box. Cement raw materials are further crushed by the small crushing rollers after being preliminarily crushed by the large crushing rollers, the fineness is improved, the crushing effect is greatly improved, the raw materials are scattered by the scattering rods, and the situation that the crushing effect and efficiency are affected due to the fact that the raw materials bonded into blocks are directly crushed is avoided; cement raw materials are screened through the inclined screen, unqualified raw materials are crushed to flow into the vertical spiral feeder and are fed into the crushing box again through the return hopper, repeated crushing is facilitated, the unqualified raw materials do not need to be manually collected and then manually added into the crushing box to be repeatedly crushed, time and labor are saved, and the working fatigue strength is reduced.

Description

Technical Field

[0001] The utility model provides a raw material crushing device for cement processing, belonging to the technical field of cement processing. Background Art

[0002] Cement is a powdery, hydraulic inorganic cementitious material. It becomes a slurry after adding water and stirring. It can harden in the air or in water, and can firmly bind sand, stone and other materials together. For a long time, it has been widely used as an important cementitious material in civil construction, water conservancy, national defense and other projects. The main raw materials of cement are limestone, clay, etc., which are crushed and finely ground into a raw material, and then burned into clinker, and gypsum or other mixed materials are added and ground into it. Therefore, when processing cement, crushing equipment is needed to crush its raw materials.

[0003] The existing crushing equipment can basically meet the crushing needs of raw materials for cement processing, but there are still certain defects: when crushing, the cement raw materials are often only crushed once, resulting in low crushing fineness, making the crushing effect not very ideal, and the raw materials that are bonded together into blocks before crushing are often not easy to crush, which affects the crushing effect and efficiency; after the crushed raw materials are screened, the raw materials that do not meet the crushing standards need to be manually collected and then manually added to the crushing box for repeated crushing, which is relatively time-consuming and labor-intensive, greatly increasing the fatigue intensity of workers. Based on this, the utility model provides a raw material crushing equipment for cement processing. Utility Model Content

[0004] The technical problem solved by the utility model is that cement raw materials are often only crushed once, resulting in low crushing fineness, making the crushing effect not very ideal, and the raw materials that are bonded together into blocks before crushing are often not easy to crush, affecting the crushing effect and efficiency; after the crushed raw materials are screened, the raw materials that do not meet the crushing standards need to be manually collected and then manually added to the crushing box for repeated crushing, which is relatively time-consuming and labor-intensive, and greatly increases the fatigue intensity of workers.

[0005] In order to solve the technical problem, the technical solution provided by the utility model is: a raw material crushing equipment for cement processing, including a crushing box, between the inner side walls of the crushing box, there are rotatably connected a breaking rod, a symmetrically arranged and meshingly connected large crushing roller, and a symmetrically arranged and meshingly connected small crushing roller, one outer side wall of the crushing box is provided with a driving component for simultaneously driving the breaking rod, the large crushing roller and the small crushing roller to rotate, between the inner lower walls of the crushing box, there is an inclined screen placed below the small crushing roller, the side lower wall of the crushing box is provided with a discharge port placed on the top of the inclined lower end of the inclined screen, and the side wall of the crushing box is provided with a vertical screw feeder connected to the discharge port for returning materials.

[0006] Furthermore, the driving assembly includes a motor arranged on the outer side wall of the crushing box, and the same end rod bodies of the large crushing roller, the small crushing roller and the breaking rod on the same side all pass through the side wall of the crushing box and are all provided with pulleys, and matching belts are provided between the pulleys, and the output end of the motor is fixedly connected to the end of the small crushing roller on the same side.

[0007] Furthermore, the small crushing roller is arranged below the large crushing roller, and the breaking rod is arranged above the large crushing roller.

[0008] Furthermore, a feed port is provided at the top of the crushing box, a discharge port is provided at the bottom of the crushing box, and a scattering blade is provided on the circumference of the rod body of the scattering rod and is placed between the large crushing roller and the feed port.

[0009] Furthermore, the two inner side walls of the crushing box are symmetrically provided with inclined material blocking plates arranged on both sides of the large crushing roller and the small crushing roller.

[0010] Furthermore, the discharge port is connected to the lower feed port of the vertical screw feeder by a discharge hopper, and the top of the crushing box is connected to the upper discharge port of the vertical screw feeder by a return hopper.

[0011] Beneficial effects of the utility model:

[0012] 1. The driving assembly drives the breaking rod and the large crushing roller and the small crushing roller on the same side to rotate. Under the action of the large crushing rollers and the small crushing rollers being symmetrically arranged and meshingly connected, the large crushing roller and the small crushing roller on the other side are driven to rotate, so that the cement raw materials are further crushed by the small crushing roller after the initial crushing of the large crushing roller, thereby improving the fineness and greatly improving the crushing effect. The rotation of the breaking rod drives the breaking blade to rotate, which has the effect of breaking up the raw materials added to the crushing box from the feed port, avoiding the direct crushing of the raw materials bonded into blocks, which affects the crushing effect and efficiency;

[0013] 2 The crushed cement raw materials can be screened by the inclined screen. The crushed raw materials that meet the standards fall down through the screen holes of the inclined screen and are discharged from the crushing box through the discharge port. The crushed raw materials that do not meet the standards are retained on the top of the inclined screen and slide to the lower end, flow into the discharge hopper through the discharge port, and then flow into the vertical screw feeder. The vertical screw feeder is started, and the spiral auger inside it transports the substandard raw materials vertically upward, and is re-entered into the crushing box through the return hopper for repeated crushing. There is no need to manually collect the substandard raw materials and then manually add them to the crushing box for repeated crushing, which saves time and effort and reduces work fatigue. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a raw material crushing equipment for cement processing in the utility model. Figure 1 .

[0015] Figure 2 This is a schematic diagram of the structure of a raw material crushing equipment for cement processing in the utility model. Figure 2 .

[0016] Figure 3 This is a plan view of a raw material crushing device for cement processing according to the utility model. Figure 1 .

[0017] Figure 4 This is a plan view of a raw material crushing device for cement processing according to the utility model. Figure 2 .

[0018] 1. Crushing box; 2. Breaking rod; 3. Large crushing roller; 4. Small crushing roller; 5. Driving assembly; 6. Inclined screen; 7. Discharge port; 8. Vertical screw feeder; 9. Motor; 10. Pulley; 11. Feed port; 12. Discharge port; 13. Breaking blade; 14. Inclined baffle plate; 15. Discharge hopper; 16. Return hopper; 17. Belt. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings.

[0020] According to the attached Figure 1 , 3 As shown: the utility model provides a raw material crushing equipment for cement processing: comprising a crushing box 1, a breaking rod 2, a large crushing roller 3 symmetrically arranged and meshingly connected, and a small crushing roller 4 symmetrically arranged and meshingly connected are rotatably connected between the inner side walls of the crushing box 1 from top to bottom in sequence, a driving assembly 5 for simultaneously driving the breaking rod 2, the large crushing roller 3, and the small crushing roller 4 to rotate is arranged on an outer side wall of the crushing box 1, an inclined screen 6 arranged below the small crushing roller 4 is arranged between the inner lower walls of the crushing box 1, a discharging port 7 arranged on the top of the inclined lower end of the inclined screen 6 is arranged on the side lower wall of the crushing box 1, a vertical screw feeder 8 for returning materials connected to the discharging port 7 is arranged on the side wall of the crushing box 1, and the inclined screen 6 is arranged on the side lower wall of the crushing box 1. The inclined screen 6 can screen the crushed cement raw materials. The crushed raw materials that meet the standards fall downward through the sieve holes of the inclined screen 6 and are discharged from the crushing box 1 through the discharge port 12. The crushed raw materials that do not meet the standards are retained on the top of the inclined screen 6 and slide to the inclined lower end, flow into the discharge hopper 15 through the discharge port 7, and then flow into the vertical screw feeder 8. The vertical screw feeder 8 is started, and the spiral auger inside it makes the substandard raw materials transported vertically upward, and are re-entered into the crushing box 1 through the return hopper 16 for repeated crushing. There is no need to manually collect the substandard raw materials and then manually add them to the crushing box 1 for repeated crushing, which saves time and effort and reduces work fatigue.

[0021] According to the attached Figure 2 , 4As shown: the driving assembly 5 includes a motor 9 arranged on the outer side wall of the crushing box 1, and the large crushing roller 3, the small crushing roller 4 and the same end rod body of the scrambling rod 2 on the same side all pass through the side wall of the crushing box 1 and are all provided with a pulley 10, and a matching belt 17 is provided between the pulleys 10. The output end of the motor 9 is fixedly connected to the end of the small crushing roller 4 on the same side. By starting the motor 9, the small crushing roller 4 on one side is driven to rotate, and then the pulley 10 on the small crushing roller 4 is driven to rotate. Under the action of the matching belt 17 between the pulleys 10, the remaining pulleys 10 are driven to rotate, and then the scrambling rod 2 and the large crushing roller 3 on the same side are driven. Since the large crushing rollers 3 and the small crushing rollers 4 are symmetrically arranged and meshed with each other, the large crushing rollers 3 and the small crushing rollers 4 on the other side are driven to rotate, so that the cement raw materials are further crushed by the small crushing roller 4 after the initial crushing of the large crushing roller 3, thereby improving the fineness and greatly improving the crushing effect.

[0022] According to the attached Figure 3 As shown: the small crushing roller 4 is arranged below the large crushing roller 3, and the breaking rod 2 is arranged above the large crushing roller 3.

[0023] According to the attached Figure 3 As shown: a feed port 11 is provided on the top of the crushing box 1, a discharge port 12 is provided on the bottom of the crushing box 1, and a breaking blade 13 is provided on the circumference of the rod body of the breaking rod 2 and is placed between the large crushing roller 3 and the feed port 11, which plays the role of breaking up the raw materials added to the crushing box 1 from the feed port 11, avoiding direct crushing of the raw materials that are bonded into blocks, which affects the crushing effect and efficiency.

[0024] According to the attached Figure 3 As shown: the two inner side walls of the crushing box 1 are symmetrically provided with inclined material blocking plates 14 placed on both sides of the large crushing roller 3 and the small crushing roller 4, which play the role of blocking materials to prevent the raw materials from passing through the gap between the inner side wall of the crushing box 1 and the large crushing roller 3 and the small crushing roller 4.

[0025] According to the attached Figure 2 , 3 As shown: the discharge port 7 is connected to the lower feed port of the vertical screw feeder 8 through a discharge hopper 15, and the top of the crushing box 1 is connected to the upper discharge port of the vertical screw feeder 8 through a return hopper 16.

[0026] Principle of the utility model

[0027] When in use, the motor 9 is started through the driving component 5 to drive the small crushing roller 4 on one side to rotate, and then the pulley 10 on the small crushing roller 4 is driven to rotate. Under the action of the belt 17 matched between the pulleys 10, the remaining pulleys 10 are driven to rotate, and then the scattering rod 2 and the large crushing roller 3 on the same side are driven. Since the large crushing rollers 3 and the small crushing rollers 4 are symmetrically arranged and meshed, the large crushing roller 3 and the small crushing roller 4 on the other side are driven to rotate, so that the cement raw materials are further crushed by the small crushing roller 4 after the initial crushing of the large crushing roller 3, thereby improving the fineness and greatly improving the crushing effect. The rotation of the scattering rod 2 drives the scattering blade 13 to rotate, which has the effect of scattering the raw materials added from the feed inlet 11 to the crushing box 1, avoiding sticking. The raw materials connected into blocks are directly crushed, which affects the crushing effect and efficiency. The crushed cement raw materials can be screened by the inclined screen 6. The crushed raw materials fall downward through the sieve holes of the inclined screen 6 and are discharged from the crushing box 1 through the discharge port 12. The raw materials that do not meet the crushing standards are retained on the top of the inclined screen 6 and slide to the lower oblique end, flow into the discharge hopper 15 through the discharge port 7, and then flow into the vertical screw feeder 8. The vertical screw feeder 8 is started, and the spiral auger inside it makes the raw materials that do not meet the standards transport vertically upward, and are re-entered into the crushing box 1 through the return hopper 16 for repeated crushing. There is no need to manually collect the raw materials that do not meet the standards and then manually add them to the crushing box 1 for repeated crushing, which saves time and effort and reduces work fatigue.

[0028] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A raw material crushing device for cement processing, comprising a crushing box (1), characterized in that: A breaking rod (2), a large crushing roller (3) symmetrically arranged and meshingly connected, and a small crushing roller (4) symmetrically arranged and meshingly connected are rotatably connected between the inner side walls of the crushing box (1) from top to bottom. A driving component (5) for simultaneously driving the breaking rod (2), the large crushing roller (3), and the small crushing roller (4) to rotate is provided on an outer side wall of the crushing box (1). An inclined screen (6) is provided between the inner lower walls of the crushing box (1) and is arranged below the small crushing roller (4). A discharge port (7) is provided on the lower side wall of the crushing box (1) and is arranged on the top of the inclined lower end of the inclined screen (6). A vertical screw feeder (8) for returning materials and connected to the discharge port (7) is provided on the side wall of the crushing box (1).

2. A raw material crushing equipment for cement processing according to claim 1, characterized in that: The driving assembly (5) comprises a motor (9) arranged on the outer side wall of the crushing box (1); the large crushing roller (3), the small crushing roller (4) and the same end rod body of the breaking rod (2) on the same side all pass through the side wall of the crushing box (1) and are all provided with pulleys (10); matching belts (17) are provided between the pulleys (10); the output end of the motor (9) is fixedly connected to the end of the small crushing roller (4) on the same side.

3. The raw material crushing equipment for cement processing according to claim 1, characterized in that: The small crushing roller (4) is arranged below the large crushing roller (3), and the breaking rod (2) is arranged above the large crushing roller (3).

4. The raw material crushing equipment for cement processing according to claim 1, characterized in that: The top of the crushing box (1) is provided with a feed port (11), the bottom of the crushing box (1) is provided with a discharge port (12), and the circumference of the scrambling bar (2) is provided with scrambling blades (13) placed between the large crushing roller (3) and the feed port (11).

5. The raw material crushing equipment for cement processing according to claim 1, characterized in that: The two inner side walls of the crushing box (1) are symmetrically provided with inclined material blocking plates (14) arranged on both sides of the large crushing roller (3) and the small crushing roller (4).

6. The raw material crushing equipment for cement processing according to claim 1, characterized in that: The discharge port (7) is connected to the lower feed port of the vertical screw feeder (8) via a discharge hopper (15), and the top of the crushing box (1) is connected to the upper discharge port of the vertical screw feeder (8) via a return hopper (16).

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