Crushing device

Abstract

The utility model belongs to the field of crushing devices, and discloses a crushing device which comprises a crushing cavity, a feeding hopper, a discharging hopper, a crushing roller assembly, a vibrating screen and an inert gas assembly. The feeding hopper and the discharging hopper are both arranged in the crushing cavity, the discharging hopper is arranged under the feeding hopper, and the crushing roller assembly and the vibrating screen are arranged in the crushing cavity from top to bottom in sequence. The crushing roller assembly is located below the feeding hopper and crushes raw materials into small particles, and the small particles fall onto the vibrating screen. The inert gas assembly is provided with a first exhaust port and a second exhaust port, the first exhaust port is formed above the crushing roller assembly, the second exhaust port is located below the crushing roller assembly, and the two exhaust ports discharge inert gas to a crushing area together, so that crushed materials are effectively prevented from being in direct contact with oxygen in air, and the crushing efficiency is improved; and therefore, the materials are prevented from being oxidized, and the cooling effect can be achieved in the crushing process. The crushing device provided by the utility model can realize a dry crushing process of active metals such as manganese.

Description

Technical Field

[0001] The utility model belongs to the technical field of crushing devices, and more specifically, relates to a crushing device. Background Art

[0002] When grinding electrolytic manganese metal flakes into fine manganese powder, dry grinding is generally not suitable for this process because manganese metal is easily oxidized by oxygen in the air, releasing a large amount of heat energy, which can cause spontaneous combustion or even explosion. Although wet grinding can reduce the risk of fire and explosion, it not only increases the cost of subsequent drying and water removal, but may also affect the purity and physical properties of the manganese metal powder. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a crushing device to solve the technical problem in the prior art that active metals such as manganese are difficult to apply to dry crushing processes.

[0004] To achieve the above objectives, the technical solution adopted in this application is:

[0005] A crushing device is provided, comprising:

[0006] A crushing chamber having a feed hopper and a discharge hopper, wherein the discharge hopper is located below the feed hopper;

[0007] A crushing roller assembly and a vibrating screen are provided in the crushing chamber and arranged sequentially from top to bottom; the crushing roller assembly is located below the feed hopper, and the vibrating screen is located above the discharge hopper;

[0008] The inert gas assembly has a first exhaust port and a second exhaust port, wherein the first exhaust port is located above the crushing roller assembly, and the second exhaust port is located below the crushing roller assembly, and both the first exhaust port and the second exhaust port are used to discharge inert gas into the crushing roller assembly.

[0009] As a further improvement of the above technical solution:

[0010] Optionally, the crushing roller assembly includes a fixed roller, a movable roller and a driving member, the fixed roller and the movable roller are arranged parallel to each other and at intervals, the fixed roller and the movable roller are both rotatably connected to the crushing cavity, and the driving member is drivingly connected to the fixed roller or the movable roller.

[0011] Optionally, the movable roller is movably connected to the crushing cavity, and the movable roller can move away from or closer to the fixed roller to adjust the rolling gap between the fixed roller and the movable roller.

[0012] Optionally, the crushing roller assembly further includes an elastic member, one end of which is connected to the crushing cavity, and the other end of which is connected to the movable roller, and the elastic member is used to elastically adjust the rolling gap between the fixed roller and the movable roller.

[0013] Optionally, the inert gas assembly includes a gas source, a control valve and a gas pipe, one end of the gas pipe is connected to the gas source, and the other end of the gas pipe is connected to the first exhaust port and the second exhaust port, and the control valve is installed on the gas pipe to control the on and off of the gas pipe.

[0014] Optionally, the vibrating screen includes a screen extending into the discharge hopper and located below the crushing roller assembly.

[0015] Optionally, the screen is arranged at an angle to the horizontal direction, the lower end of the screen is located outside the crushing cavity, and the material that does not pass through the screen is guided out of the hopper by the screen.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The crushing device provided in the present application includes a crushing chamber, a feed hopper, a discharge hopper, a crushing roller assembly, a vibrating screen and an inert gas assembly. Among them, the crushing chamber is the main structure of the crushing device, which provides a closed grinding and crushing space, effectively isolates the external environment, and provides a basic guarantee for the safe crushing of materials. The feed hopper and the discharge hopper are both arranged in the crushing chamber. The feed hopper is located at the top of the crushing chamber. Its main function is to hold the raw materials to be crushed and smoothly release the raw materials to the crushing area below. The discharge hopper is arranged directly below the feed hopper and is located at the very end of the entire crushing process. It is responsible for collecting the crushed and screened materials to ensure smooth discharge of logistics. The crushing roller assembly and the vibrating screen are also arranged in the crushing chamber and are arranged in sequence from top to bottom; the crushing roller assembly is specifically located directly below the feed hopper. When the raw materials fall from the feed hopper, the crushing roller assembly uses its crushing capacity to squeeze the raw materials into small particles and fall onto the vibrating screen. The vibrating screen uses its sieve holes and mechanical vibrations to screen the materials, ensuring that only materials that meet the requirements can pass through and continue to move down to the discharge hopper. The crushed materials that meet the requirements are finally collected and stored by the discharge hopper. In order to further improve the safety of the crushing process, the crushing device of the present application introduces an inert gas assembly, which has a first exhaust port and a second exhaust port. Specifically, the first exhaust port is arranged above the crushing roller assembly, and the second exhaust port is located below the crushing roller assembly. These two exhaust ports work together to continuously discharge inert gas into the crushing area of ​​the crushing roller assembly, forming a protective barrier. This layer of inert gas can not only effectively prevent the crushed material from directly contacting the oxygen in the air, thereby avoiding oxidation of the material, but also play a significant cooling role in the crushing process, further reducing the safety risks caused by high temperature.

[0018] In summary, the crushing device provided in this application can realize the dry crushing process of active metals such as manganese. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the structural layout of the crushing device of the present application;

[0021] Among them, the reference numerals in the figures are:

[0022] 1. Crushing chamber; 2. Feed hopper;

[0023] 3. Discharge hopper; 4. Crushing roller assembly;

[0024] 41. Fixed roller; 42. Movable roller;

[0025] 43. Driving member; 44. Elastic member;

[0026] 5. Vibrating screen; 51. Screen;

[0027] 6. Inert gas assembly; 61. First exhaust port;

[0028] 62. Second exhaust port; 63. Gas pipe;

[0029] 64. Gas source. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is 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 this application and are not intended to limit this application.

[0031] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0032] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply 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 this application.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0034] Unless otherwise defined, all technical terms used hereinafter have the same meanings as those generally understood by those skilled in the art. The technical terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the scope of protection of the present invention.

[0035] like Figure 1 As shown, the present application provides a crushing device, including a crushing chamber 1, a feed hopper 2, a discharge hopper 3, a crushing roller assembly 4, a vibrating screen 5 and an inert gas assembly 6.

[0036] The crushing chamber 1 is the main structure of the crushing device, providing a sealed grinding and crushing space that effectively isolates the external environment and provides a fundamental guarantee for the safe crushing of materials. Both the feed hopper 2 and the discharge hopper 3 are located within the crushing chamber 1. The feed hopper 2, located at the top of the crushing chamber 1, primarily holds the raw material to be crushed and smoothly releases it into the crushing area below. The discharge hopper 3, located directly below the feed hopper 2 and at the very end of the entire crushing process, is responsible for collecting the crushed and screened material to ensure smooth discharge.

[0037] Crushing roller assembly 4 and vibrating screen 5 are also located within crushing chamber 1, arranged sequentially from top to bottom. Crushing roller assembly 4 is specifically positioned directly below feed hopper 2. When raw materials fall from feed hopper 2, crushing roller assembly 4 utilizes its crushing capacity to crush the raw materials into small particles, which then fall onto vibrating screen 5. Vibrating screen 5 uses its mesh and mechanical vibration to screen the material, ensuring that only qualified material passes through and continues downward to discharge hopper 3. Discharge hopper 3 ultimately collects and stores the crushed material that meets the requirements.

[0038] To further enhance the safety of the crushing process, the crushing device of the present application incorporates an inert gas assembly 6, which comprises a first exhaust port 61 and a second exhaust port 62. Specifically, the first exhaust port 61 is positioned above the crushing roller assembly 4, while the second exhaust port 62 is located below the crushing roller assembly 4. These two exhaust ports work together to continuously discharge inert gas into the crushing area of ​​the crushing roller assembly 4, forming a protective barrier. This layer of inert gas not only effectively prevents direct contact between the crushed material and oxygen in the air, thereby preventing oxidation, but also significantly cools the material during the crushing process, further reducing safety risks associated with high temperatures.

[0039] In summary, the crushing device provided in this application can realize the dry crushing process of active metals such as manganese.

[0040] In a specific embodiment of the present application, the crushing roller assembly 4 includes a fixed roller 41, a movable roller 42 and a driving member 43. Among them, the fixed roller 41 and the movable roller 42 are arranged parallel to each other and at intervals, which not only optimizes the smoothness of the material passing through the crushing area, but also ensures uniform force during the crushing process, thereby improving the crushing efficiency. The fixed roller 41 and the movable roller 42 can be rotatably connected to the crushing chamber 1, so that they can rotate smoothly under the action of the driving force to complete the crushing operation of the material. Furthermore, the driving member 43 is driven and connected to the fixed roller 41 or the movable roller 42. The driving member 43 can output power to drive the connected roller to rotate, and then realize the extrusion, shearing and crushing of the material through the relative movement between the two rollers. The driving member 43 can specifically be an explosion-proof motor.

[0041] In a specific embodiment of the present application, a movable roller 42 is movably connected to the crushing chamber 1. The movable roller 42 can freely move away from or toward the fixed roller 41 within a preset range. By adjusting the relative position between the movable roller 42 and the fixed roller 41, the roller gap between them can be effectively changed. The size of this gap directly determines the pressure exerted on the material during the crushing process and the final crushed particle size. When producing larger-sized materials, the roller gap can be appropriately increased to reduce the squeezing effect on the material. Conversely, when a finer crushing particle size is required, the roller gap can be reduced to enhance the crushing effect.

[0042] In a specific embodiment of the present application, the crushing roller assembly 4 further includes an elastic member 44. One end of the elastic member 44 is connected to the crushing chamber 1, and the other end of the elastic member 44 is connected to the movable roller 42. The elastic member 44 allows the movable roller 42 to elastically move within a certain range when subjected to an external force, thereby dynamically adjusting the roller pressure gap between the movable roller 42 and the fixed roller 41. It can also effectively absorb and disperse the impact force generated during the crushing process, ensuring the stability and accuracy of the roller pressure gap. The elastic member 44 can specifically be a high-pressure spring, which can provide just the right elastic support according to the actual needs of the crushing operation, so that the movable roller 42 can reduce unnecessary wear and vibration while ensuring the crushing effect, thereby extending the service life of the equipment.

[0043] In a specific embodiment of the present application, the inert gas assembly 6 includes a gas source 64, a control valve and a gas pipe 63. As the supply source of the inert gas, the gas source 64 is responsible for providing a continuous and stable flow of inert gas to meet the needs of subsequent processes or equipment. The gas source 64 includes but is not limited to a high-pressure gas cylinder, a gas generator or a gas pipeline system, and the specific selection depends on the actual application scenario and specific needs. The gas pipe 63 serves as a bridge connecting the gas source 64 and the exhaust port, and it is necessary to ensure that the inert gas can be transmitted to the target position. One end of the gas pipe 63 is tightly connected to the output end of the gas source 64, and the other end is respectively connected to the first exhaust port 61 and the second exhaust port 62. The control valve is a control element in the inert gas assembly 6. It is installed on the gas pipe 63 and is responsible for controlling the flow of gas. By adjusting the opening or switch state of the control valve, the flow of inert gas can be controlled, thereby ensuring the stable operation of the system under different working conditions. The control valve can be in various forms such as solenoid valve, pneumatic valve or manual valve. The specific choice depends on factors such as control accuracy, response speed and operation convenience.

[0044] In a specific embodiment of the present application, the vibrating screen 5 includes a screen 51. The screen 51 extends into the discharge hopper 3 and is located directly below the crushing roller assembly 4, so that the material crushed by the crushing roller assembly 4 can fall directly onto the screen 51. It is understood that the vibrating screen 5 should also be equipped with a vibration drive mechanism to drive the screen 51 to vibrate at a high frequency, which not only promotes the rapid movement and separation of materials on the screen, but also effectively prevents materials from clogging the screen holes, further improving screening efficiency.

[0045] In a specific embodiment of the present application, the screen 51 is arranged at an angle to the horizontal, with the lower end of the screen 51 located outside the crushing chamber 1. This allows larger material particles that fail to pass through the screen 51 to slide down the inclined surface of the screen 51 to a designated area outside the crushing chamber 1 under the action of gravity, thus avoiding material accumulation and blockage. At the same time, this inclined arrangement of the screen 51 also allows the screened fine material to more easily pass through the sieve holes of the screen 51 and fall into the discharge hopper 3 below.

[0046] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A crushing device, characterized in that: include: A crushing chamber (1) has a feed hopper (2) and a discharge hopper (3), wherein the discharge hopper (3) is located below the feed hopper (2); A crushing roller assembly (4) and a vibrating screen (5) are provided in the crushing cavity (1) and arranged sequentially from top to bottom; the crushing roller assembly (4) is located below the feed hopper (2), and the vibrating screen (5) is located above the discharge hopper (3); The inert gas assembly (6) comprises a first exhaust port (61) and a second exhaust port (62), wherein the first exhaust port (61) is located above the crushing roller assembly (4), and the second exhaust port (62) is located below the crushing roller assembly (4), and both the first exhaust port (61) and the second exhaust port (62) are used to discharge the inert gas into the crushing roller assembly (4).

2. The crushing device according to claim 1, characterized in that The crushing roller assembly (4) includes a fixed roller (41), a movable roller (42) and a driving member (43), wherein the fixed roller (41) and the movable roller (42) are arranged parallel to each other and spaced apart, and the fixed roller (41) and the movable roller (42) are both rotatably connected to the crushing cavity (1), and the driving member (43) is drivingly connected to the fixed roller (41) or the movable roller (42).

3. The crushing device according to claim 2, characterized in that: The movable roller (42) is movably connected to the crushing cavity (1), and the movable roller (42) can move away from or closer to the fixed roller (41) to adjust the rolling gap between the fixed roller (41) and the movable roller (42).

4. The crushing device according to claim 3, characterized in that The crushing roller assembly (4) further includes an elastic member (44), one end of the elastic member (44) is connected to the crushing cavity (1), and the other end of the elastic member (44) is connected to the movable roller (42), and the elastic member (44) is used to elastically adjust the roller pressure gap between the fixed roller (41) and the movable roller (42).

5. The crushing device according to any one of claims 1 to 4, characterized in that The inert gas assembly (6) comprises a gas source (64), a control valve and a gas pipe (63), one end of the gas pipe (63) is connected to the gas source (64), and the other end of the gas pipe (63) is connected to the first exhaust port (61) and the second exhaust port (62), and the control valve is installed on the gas pipe (63) to control the on / off of the gas pipe (63).

6. The crushing device according to any one of claims 1 to 4, characterized in that The vibrating screen (5) comprises a screen (51), which extends into the discharge hopper (3) and is located below the crushing roller assembly (4).

7. The crushing device according to claim 6, characterized in that The screen (51) is arranged at an angle to the horizontal direction, and the lower end of the screen (51) is located outside the crushing cavity (1). Materials that do not pass through the screen (51) are guided out of the hopper (3) by the screen (51).

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