Roller mill for ore crushing

Abstract

The utility model relates to the technical field of ore processing equipment, in particular to a roller mill for ore crushing, which comprises a crushing box and a crushing mechanism, a screening mechanism is arranged at the bottom end in the crushing box, the crushing mechanism is positioned above the screening mechanism, and the crushing mechanism comprises a crushing component and an adjusting component. The ore crushing device has the beneficial effects that ores are uniformly crushed through the crushing assembly, then different crushing intervals are adjusted through the adjusting assembly, the ores with different sizes are crushed in an all-around mode, when the ores with large sizes are crushed, the crushing pressure of the ores is increased, meanwhile, the upper ends of the ores are pressed, the ores are prevented from shaking and popping out, and the crushing efficiency is improved. And therefore, the pressing force of the ore is increased, the contact area of ore crushing is increased, and the crushing effect of the ore is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ore processing equipment, in particular to a roller mill for ore crushing. Background Art

[0002] Roller mill is a widely used drying and grinding equipment. It can be widely used to grind cement raw materials or cement clinker and other industrial raw materials such as construction, chemical industry, ceramics, etc. The high-pressure roller mill implements quasi-static pressure crushing. Compared with traditional crushing and ball milling technology, the crushing efficiency of this principle is significantly improved, and the wear is also significantly reduced. It is often used in ore crushing processing.

[0003] By comparing the patent announcement number CN217614937U, a high-pressure roller mill for crushing ore, in this scheme, when this device is processing ore, when crushing larger ore blocks, the rollers arranged on both sides cannot adjust the distance between the two, thereby making the angle between the contact point of the larger ore and the two rollers and the line connecting the axis of the rollers smaller, making the combined force of the extrusion force of the two rollers on the larger ore smaller, which may reduce the crushing effect of the larger ore, and the ore may shake above the rollers, which is not conducive to the extrusion of the ore and has certain limitations. Utility Model Content

[0004] The purpose of the utility model is to provide a roller mill for ore crushing in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A roller mill for ore crushing, comprising a crushing box, a screening mechanism is arranged at the bottom of the crushing box, and a crushing mechanism, wherein the crushing mechanism is located above the screening mechanism;

[0007] The crushing mechanism includes a crushing assembly for crushing the ore and an adjusting assembly for adjusting the crushing force of the ore;

[0008] The adjusting component includes a first oil bin which is movably arranged above the crushing box, a hydraulic cylinder is arranged above the first oil bin, a first piston plate is slidably installed inside the first oil bin, a pressure plate is fixedly arranged at the lower end of the first piston plate, the first piston plate is connected to the upper end of the first oil bin by a spring, second oil bins are arranged on both sides of the first oil bin, a second piston plate is slidably installed at the lower part of the second oil bin, the second piston plate is connected to the upper end of the second oil bin by a spring, sliding frames are slidably installed on both sides of the crushing box, and are symmetrically arranged on both sides, and driving components are arranged on both sides of the sliding frames.

[0009] Preferably: the driving assembly includes a first cylinder arranged at the upper end inside the second oil bin, a push plate is arranged at the telescopic end of the first cylinder, second cylinders are arranged on the side of the sliding frames on both sides away from each other, the second cylinder is fixedly connected to the inner wall of the crushing box, telescopic rods are arranged on the front and rear sides of the second cylinder, one end of the telescopic rod is fixed to the inner wall of the crushing box, and the other end is fixed to the side wall of the sliding frame, the telescopic rod is connected to the inner wall of the crushing box by a spring, and a control structure is arranged between the second cylinder and the sliding frame.

[0010] Preferably: the control structure includes a first button installed at the center position of the second piston plate, a second button is arranged under the second piston plate, the second button is connected to the second oil tank, the telescopic end of the second cylinder is provided with a first electromagnet, and the side walls of the sliding frames on both sides are provided with a second electromagnet.

[0011] Preferably, the crushing assembly comprises a crushing roller rotatably mounted on a sliding frame, and a first motor is arranged at the rear side of the sliding frame.

[0012] Preferably: the screening mechanism includes a feed bin evenly distributed around the crushing box, a spiral auger is rotatably installed inside the feed bin, a screening plate is arranged below the crushing roller, the screening plate is in a triangle with the tip facing upward, a boss is arranged at the center of the screening plate, a material holding frame is arranged below the screening plate, and the material holding frame is slidably connected to the crushing box.

[0013] Preferably: an oil pipe is connected between the upper end of the first oil bin and the lower end of the second oil bin, lower feed bins are provided on both sides above the crushing box, a second motor is provided at the upper end of the feed bin, a handle is installed at the front end of the material holding frame, and a discharge plate is provided between the upper end of the feed bin and the lower feed bin.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] By providing a crushing component and an adjusting component, the ore is evenly crushed by the crushing component, and different crushing intervals are adjusted by the adjusting component, so that ores of different sizes are crushed in all directions. When crushing larger volumes of ore, the crushing pressure of the ore is increased, and at the same time, the upper end of the ore is pressed to prevent the ore from shaking and bouncing outward, thereby increasing the pressing force of the ore, increasing the contact area of ​​the ore crushing, and improving the crushing effect of the ore. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a spatial stereogram of a roller mill for ore crushing described in the utility model;

[0018] Figure 2 It is a structural cross-sectional view of the interior of a crushing box of a roller mill for ore crushing described in the utility model;

[0019] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0020] Figure 4 It is a structural schematic diagram of an adjustment assembly of a roller mill for ore crushing described in the utility model;

[0021] Figure 5 It is a structural cross-sectional view of the interior of a feeding bin of a roller mill for ore crushing described in the utility model.

[0022] The following are the descriptions of the reference numerals:

[0023] 100, crushing box; 200, crushing mechanism; 201, hydraulic cylinder; 202, first oil bin; 203, pressure plate; 204, second oil bin; 205, first cylinder; 206, first piston plate; 207, second piston plate; 208, first button; 209, second button; 210, first motor; 211, crushing roller; 212, sliding frame; 213, telescopic rod; 214, second cylinder; 215, first electromagnet; 216, second electromagnet; 300, screening mechanism; 301, second motor; 302, feed bin; 303, spiral auger; 304, screening plate; 305, material holding frame; 306, boss. DETAILED DESCRIPTION

[0024] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0026] The utility model is further described below in conjunction with the accompanying drawings:

[0027] like Figure 1-Figure 5 As shown, a roller mill for ore crushing includes a crushing box 100, a screening mechanism 300 for screening the crushed ore, the screening mechanism 300 is located at the bottom of the crushing box 100, and also includes a crushing mechanism 200 for crushing the ore, the crushing mechanism 200 is located above the screening mechanism 300;

[0028] In this embodiment: the crushing mechanism 200 includes a crushing component for crushing the ore and an adjusting component for adjusting the crushing force of the ore;

[0029] The crushing assembly includes two sliding frames 212 slidably mounted inside the crushing box 100 and symmetrically arranged on both sides. A crushing roller 211 is rotatably mounted on the sliding frame 212. A first motor 210 is arranged at the rear side of the sliding frame 212. A lower material bin is arranged on both sides above the crushing box 100.

[0030] The adjusting assembly includes a mounting frame arranged above the lower material bin, a hydraulic cylinder 201 is arranged above the mounting frame, a first oil bin 202 is arranged at the telescopic end of the hydraulic cylinder 201, a first piston plate 206 is slidably installed inside the first oil bin 202, a pressure plate 203 is fixedly arranged at the lower end of the first piston plate 206, the first piston plate 206 is connected to the upper end of the first oil bin 202 through a spring, second oil bins 204 are arranged on both sides of the first oil bin 202, and a second oil bin 204 is slidably installed at the lower part of the second oil bin 204. A second piston plate 207, a first button 208 is installed at the center of the second piston plate 207, a second button 209 is arranged below the second piston plate 207, the second button 209 is connected to the second oil bin 204, the second piston plate 207 is connected to the upper end of the second oil bin 204 through a spring, a first cylinder 205 is arranged at the upper end of the second oil bin 204, a push plate is arranged at the telescopic end of the first cylinder 205, and an oil pipeline is connected between the upper end of the first oil bin 202 and the lower end of the second oil bin 204;

[0031] The sliding frames 212 on both sides are provided with a second electromagnet 216 on the side away from each other, and the second electromagnets 216 on both sides are provided with a second cylinder 214 on the side away from each other. The second cylinder 214 is fixedly connected to the inner wall of the crushing box 100, and the telescopic ends of the second cylinder 214 are provided with a first electromagnet 215. The front and rear sides of the second cylinder 214 are provided with a telescopic rod 213, one end of the telescopic rod 213 is fixed to the inner wall of the crushing box 100, and the other end is fixed to the side wall of the sliding frame 212. The telescopic rod 213 is connected to the inner wall of the crushing box 100 through a spring, which is used to reset the sliding frame 212, and the ore is evenly crushed by the crushing component, and then different crushing intervals are adjusted by the adjustment component, so that ores of different sizes are crushed in all directions. When crushing a larger volume of ore, the crushing pressure of the ore is increased, and the upper end of the ore is pressed to prevent the ore from shaking and popping outward, thereby increasing the pressing force of the ore, increasing the contact area of ​​the ore crushing, and improving the crushing effect of the ore.

[0032] In this embodiment: the screening mechanism 300 includes a feed bin 302 evenly distributed around the crushing box 100, a spiral auger 303 is rotatably installed inside the feed bin 302, a second motor 301 is arranged at the upper end of the feed bin 302, a discharge plate is arranged between the upper end of the feed bin 302 and the lower bin, a screening plate 304 is arranged below the crushing roller 211, the screening plate 304 is in a triangle with the tip facing upward, a boss 306 is arranged at the center of the screening plate 304, which is used to transport the crushed ore to the front and rear sides of the screening plate 304, a material holding frame 305 is arranged below the screening plate 304, the material holding frame 305 is slidably connected to the crushing box 100, and a handle is installed at the front end of the material holding frame 305, the kinetic energy of the second motor 301 drives the spiral auger 303 to rotate, and the uncrushed qualified ore is transported upward, and finally falls into the lower bin again through the upper discharge plate, and is crushed again, thereby improving the screening capacity of the device.

[0033] Working principle: First, the ore to be processed is transported between the crushing rollers 211 on both sides through the lower material bin, and the kinetic energy of the first motors 210 on both sides drives the crushing rollers 211 on both sides to realize opposite rotation to squeeze and crush the ore. When encountering a larger volume of ore, the hydraulic cylinder 201 moves downward to drive the first oil bin 202 and the pressure plate 203 to move downward, and the pressure plate 203 presses the upper end of the ore. The upward reaction force of the ore on the pressure plate 203 drives the pressure plate 203 to move upward, so that the pressure plate 203 drives the first piston plate 206 to move upward, and the hydraulic oil in the first oil bin 202 is squeezed to the lower part of the second oil bin 204 on both sides through the oil pipeline. The hydraulic oil introduced will drive the second piston plate 207 at the lower part of the second oil bin 204 to move upward;

[0034] When the hydraulic cylinder 201 reaches the preset downward pressure height, the first oil tank 202 stops moving downward, the second piston plate 207 stops moving upward, and then the first cylinder 205 drives the push plate to move downward, and the first button 208 above the second piston plate 207 is pressed, so that the push plate pushes the second piston plate 207 to move downward. At the same time, the first button 208 controls the first electromagnet 215 and the second electromagnet 216 to be energized so that the two are adsorbed together, and then the second cylinder 214 is driven to pull the sliding frames 212 on both sides away from each other, so as to adjust the distance between the two crushing rollers 211;

[0035] Thus, the first cylinder 205 drives the second piston plate 207 to move downward through the push plate, and at the same time transfers the hydraulic oil in the second oil tank 204 to the first oil tank 202 again, and pushes the first piston plate 206 downward again to drive the pressing plate 203 to press down, press the ore, increase the pressure between the ore and the crushing roller 211, and facilitate material unloading;

[0036] When the second piston plate 207 moves down to the second button 209, the second button 209 is pressed, thereby stopping the second cylinder 214 from driving the sliding frame 212 to move. At the same time, the second button 209 controls the first electromagnet 215 and the second electromagnet 216 to quickly cut off the power and lose the adsorption force, so that the sliding frames 212 on both sides quickly move toward the middle and reset through the action of the telescopic rod 213 and the spring, thereby squeezing the ore in the middle to increase the crushing force of the ore.

[0037] The crushed ore fragments fall onto the screening plate 304 below and are screened. The qualified ore passes through the screening plate 304 and falls into the material containing frame 305 below. The uncrushed qualified ore rolls into the feeding bin 302 on both sides. The kinetic energy of the second motor 301 drives the spiral auger 303 to rotate, and the uncrushed qualified ore is transported upward, and finally falls into the lower bin again through the upper discharge plate to be crushed again.

[0038] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A roller mill for ore crushing, comprising a crushing box, wherein a screening mechanism is provided at the bottom of the crushing box, and characterized in that: It also includes a crushing mechanism, wherein the crushing mechanism is located above the screening mechanism; The crushing mechanism includes a crushing component for crushing the ore and an adjusting component for adjusting the crushing force of the ore; The adjusting component includes a first oil bin movably arranged above the crushing box, a hydraulic cylinder is arranged above the first oil bin, a first piston plate is slidably installed inside the first oil bin, a pressure plate is fixedly arranged at the lower end of the first piston plate, the first piston plate is connected to the upper end of the first oil bin by a spring, second oil bins are arranged on both sides of the first oil bin, a second piston plate is slidably installed at the lower part of the second oil bin, the second piston plate is connected to the upper end of the second oil bin by a spring, sliding frames are slidably installed on both sides of the crushing box, and are symmetrically arranged on both sides, and driving components are arranged on both sides of the sliding frames.

2. A roller mill for ore crushing according to claim 1, characterized in that: The driving assembly includes a first cylinder arranged at the upper end of the second oil bin, a push plate is arranged at the telescopic end of the first cylinder, a second cylinder is arranged on the side of the sliding frames on both sides away from each other, the second cylinder is fixedly connected to the inner wall of the crushing box, a telescopic rod is arranged on the front and rear sides of the second cylinder, one end of the telescopic rod is fixed to the inner wall of the crushing box, and the other end is fixed to the side wall of the sliding frame, the telescopic rod is connected to the inner wall of the crushing box by a spring, and a control structure is arranged between the second cylinder and the sliding frame.

3. A roller mill for ore crushing according to claim 2, characterized in that: The control structure includes a first button installed at the center position of the second piston plate, a second button is arranged under the second piston plate, the second button is connected to the second oil tank, a first electromagnet is arranged at the telescopic end of the second cylinder, and a second electromagnet is arranged on the side walls of the sliding frame on both sides.

4. A roller mill for ore crushing according to claim 3, characterized in that: The crushing assembly comprises a crushing roller rotatably mounted on the sliding frame, and a first motor is arranged at the rear side of the sliding frame.

5. A roller mill for ore crushing according to claim 4, characterized in that: The screening mechanism includes a feed bin evenly distributed around the crushing box, a spiral auger is rotatably installed inside the feed bin, a screening plate is arranged below the crushing roller, the screening plate is in a triangle with the tip facing upward, a boss is arranged at the center of the screening plate, a material holding frame is arranged below the screening plate, and the material holding frame is slidably connected to the crushing box.

6. A roller mill for ore crushing according to claim 5, characterized in that: An oil pipe is connected between the upper end of the first oil bin and the lower end of the second oil bin, lower feed bins are provided on both sides above the crushing box, a second motor is provided at the upper end of the feed bin, a handle is installed at the front end of the material holding frame, and a discharge plate is provided between the upper end of the feed bin and the lower feed bin.

Images