A concrete lime production raw material crushing tank
Patent Information
- Application Number
- CN202522575342.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-04
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-12-04
AI Technical Summary
[0003]目前市场上的混凝土石灰原料粉碎设备普遍存在粉碎效果不佳的问题，多数传统设备采用单级研磨或切割结构，对于开采后粒度不均的大块石灰原料，缺乏有效的预处理环节，直接进入粉碎腔易造成设备堵塞、负荷骤增，不仅降低生产效率，还会加剧磨辊、刀片等核心部件的磨损
1、本实用新型采用在罐体顶部设置预粉碎机构，可对大块原料进行初步处理，避免直接进入罐体内部造成堵塞或设备负荷过大，研磨环与研磨块的配合设计，能对预粉碎后的原料进行精细化研磨，提升原料粉碎精度。切割粉碎机构进一步对原料进行破碎，实现多阶段粉碎作业，大幅提升粉碎效果。电机为转轴提供稳定动力，确保各粉碎部件协同运转，电磁排料阀可精准控制排料时机，吸尘机构则能及时收集加料、粉碎和排料过程中产生的粉尘，改善作业环境，保障操作人员健康，该装置具备粉碎效果好和防尘效果好的优点。
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Figure CN224912531U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of raw material crushing equipment, specifically a crushing tank for raw materials in concrete lime production. Background Technology
[0002] The precision of crushing raw materials for concrete lime production directly determines the core properties of subsequent concrete products, such as strength and density. Dust control during the crushing process is crucial for ensuring a compliant production environment and protecting the occupational health of operators. With the large-scale development of the building materials industry, the demand for concrete lime raw materials continues to rise, placing increasingly stringent requirements on the efficiency, precision, and environmental friendliness of crushing equipment.
[0003] Currently, most concrete lime raw material crushing equipment on the market suffers from poor crushing effect. Most traditional equipment adopts a single-stage grinding or cutting structure. For large lime raw materials with uneven particle size after mining, there is a lack of effective pretreatment. Directly entering the crushing chamber can easily cause equipment blockage and sudden increase in load, which not only reduces production efficiency but also aggravates the wear of core components such as grinding rollers and blades.
[0004] In terms of dust control, the shortcomings of existing equipment are more prominent. Lime raw materials themselves have a strong dust-generating property, and a large amount of dust will be generated in the entire process of feeding, crushing and discharging. This dust will not only corrode the equipment circuits and transmission components and shorten the service life of the equipment, but also cause serious harm to the respiratory system of operators. Long-term exposure can easily lead to occupational diseases such as pneumoconiosis. Although some equipment is equipped with simple dust removal devices, most of them adopt a single dust suction port design, which only collects dust in a local area of the crushing chamber and cannot cover the main dust-generating points such as the feed hopper opening and the discharge valve outlet, resulting in a low dust collection rate.
[0005] Therefore, developing a concrete lime production raw material crushing tank that combines efficient multi-stage crushing capability with precise dust prevention throughout the entire process has become an urgent need to solve industry pain points and promote the green upgrading of building materials production. Utility Model Content
[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide a crushing tank for raw materials in concrete lime production, which has the advantages of good crushing effect and good dust prevention effect.
[0007] This utility model provides the following technical solution: a raw material crushing tank for concrete lime production, comprising a tank body, a pre-crushing mechanism provided at the top of the tank body, a grinding ring fixedly connected to the upper part of the tank body, a rotating shaft rotatably connected inside the tank body, a grinding block fixedly connected to the top of the rotating shaft, the grinding block cooperating with the grinding ring, a cutting and crushing mechanism provided inside the tank body, a motor fixedly connected to the bottom of the tank body, the output end of the motor fixedly connected to the rotating shaft, an electromagnetic discharge valve connected to the bottom of the tank body, and a dust suction mechanism provided on the side of the tank body.
[0008] The pre-crushing mechanism includes a feed hopper connected to the top of the tank. Crushing rollers are rotatably connected to both sides inside the feed hopper. A driving mechanism is provided on the front of the feed hopper, which can drive the left and right crushing rollers to rotate synchronously in opposite directions.
[0009] The beneficial effects of the utility model are as follows: 1. This utility model employs a pre-crushing mechanism installed at the top of the tank, which can pre-process large pieces of raw materials, preventing them from directly entering the tank and causing blockages or excessive equipment load. The coordinated design of the grinding ring and grinding blocks enables fine grinding of the pre-crushed raw materials, improving the crushing accuracy. The cutting and crushing mechanism further breaks down the raw materials, achieving multi-stage crushing operations and significantly improving the crushing effect. The motor provides stable power to the rotating shaft, ensuring coordinated operation of all crushing components. The electromagnetic discharge valve can precisely control the discharge timing, and the dust collection mechanism can promptly collect dust generated during feeding, crushing, and discharge, improving the working environment and protecting the health of operators. This device has the advantages of good crushing effect and good dust prevention effect.
[0010] 2. This utility model provides a stable feeding channel for raw materials through the feed hopper in the pre-crushing mechanism. The synchronous opposite rotation of the crushing rollers on both sides can efficiently crush the raw materials. The drive mechanism realizes the linkage of the two crushing rollers through gear meshing, ensuring synchronous operation. The motor provides sufficient power and the speed is easy to control, and the crushing speed can be adjusted according to the hardness of the raw materials. The protective cover effectively protects the drive components such as gears and motor output end, preventing dust adhesion and external impact, reducing component wear, extending the service life of the drive mechanism, reducing equipment maintenance costs, and ensuring long-term stable operation of pre-crushing. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a front sectional view of the feed hopper and tank structure of this utility model; Figure 3 This is an exploded view of the grinding ring and grinding block structure of this utility model; Figure 4This is a schematic diagram of the rotating shaft and cutting blade structure of this utility model; Figure 5 This is a schematic diagram of the filter box structure of this utility model; Figure 6 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle. Detailed Implementation
[0012] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0013] like Figures 1 to 6 As shown, the concrete lime production raw material crushing tank of this embodiment includes a tank body 1. A pre-crushing mechanism is provided on the top of the tank body 1. A grinding ring 5 is fixedly connected to the upper part of the inside of the tank body 1. A rotating shaft 3 is rotatably connected inside the tank body 1. A grinding block 4 is fixedly connected to the top of the rotating shaft 3. The grinding block 4 works in conjunction with the grinding ring 5. A cutting and crushing mechanism is provided inside the tank body 1. A motor 6 is fixedly connected to the bottom of the tank body 1. The output end of the motor 6 is fixedly connected to the rotating shaft 3. An electromagnetic discharge valve 7 is connected to the bottom of the tank body 1. A dust suction mechanism is provided on the side of the tank body 1. The grinding block 4 and the grinding ring 5 mentioned above are common existing technologies and are common knowledge known to those skilled in the art. They will not be described in detail in this application. A controller is provided on the outside of the device to control the start and stop of each electrical appliance in the device.
[0014] refer to Figure 2 The pre-crushing mechanism includes a feed hopper 2 connected to the top of the tank 1. Crushing rollers 8 are rotatably connected to both sides inside the feed hopper 2. A drive mechanism is provided on the front of the feed hopper 2. The drive mechanism can drive the left and right crushing rollers 8 to rotate synchronously in opposite directions. The drive mechanism includes gears provided on both sides of the front of the feed hopper 2. The front of the crushing rollers 8 extends to the front of the feed hopper 2 and is fixedly connected to the gears. The left and right gears mesh with each other. A motor is fixedly connected to the front of the feed hopper 2 through a bracket. The output end of the motor is fixedly connected to the left gear. A protective cover is fixedly connected to the front of the feed hopper 2 to protect the drive mechanism.
[0015] In this embodiment, the feed hopper 2 in the pre-crushing mechanism provides a stable feeding channel for the raw materials. The synchronous opposite rotation of the crushing rollers 8 on both sides can efficiently crush the raw materials. The drive mechanism realizes the linkage of the two crushing rollers 8 through gear meshing, ensuring synchronous operation. The motor provides sufficient power and the speed is easy to control, and the crushing speed can be adjusted according to the hardness of the raw materials. The protective cover effectively protects the drive components such as gears and motor output, preventing dust adhesion and external impact, reducing component wear, extending the service life of the drive mechanism, reducing equipment maintenance costs, and ensuring long-term stable operation of the pre-crushing process.
[0016] refer to Figure 4The cutting and crushing mechanism includes multiple cutting blades 9 that are uniformly fixedly connected to the surface of the rotating shaft 3. Multiple scraper racks 10 that are uniformly distributed in a ring are fixedly connected to the surface of the rotating shaft 3. The scraper racks 10 are in contact with the inner wall of the tank 1.
[0017] In this embodiment, multiple cutting blades 9 are evenly distributed on the surface of the rotating shaft 3 in the cutting and crushing mechanism. When the rotating shaft 3 rotates at high speed, it can cut the falling raw material from all directions, with a wide crushing range and uniform force, which can further refine the ground raw material to meet the particle size requirements of production. The scraper 10 is closely attached to the inner wall of the tank 1. During discharge, it can scrape off the raw material residue adhering to the inner wall of the tank 1 under the action of the rotating shaft 3, avoiding material waste.
[0018] refer to Figure 2 The dust collection mechanism includes a first dust collection hood 11 located above the side of the feed hopper 2 and a second dust collection hood 12 located on the side of the electromagnetic discharge valve 7. A filter box 13 is provided on the side of the tank body 1. The air outlets of the first dust collection hood 11 and the second dust collection hood 12 are connected to the air inlet at the top of the filter box 13 through pipes. A coarse filter screen 14 and a fine filter screen 15 are slidably connected to the upper and lower parts of the filter box 13, respectively. The sides of the coarse filter screen 14 and the fine filter screen 15 extend to the side of the filter box 13 and are fixedly connected to the handles. A fan is fixedly connected to the inside of the filter box 13 and below the fine filter screen 15 through a bracket. An exhaust pipe is connected to the bottom of the side of the filter box 13.
[0019] This embodiment utilizes a dust collection mechanism with a first dust collection hood 11 and a second dust collection hood 12 to precisely collect dust from the two concentrated dust-generating points: the feed inlet of the feed hopper 2 and the discharge outlet of the electromagnetic discharge valve 7, achieving dust source control. The filter box 13 contains a coarse filter screen 14 and a fine filter screen 15, forming a dual filtration structure that intercepts dust layer by layer, resulting in a more thorough filtration effect and preventing direct dust emissions that pollute the air. Handles on the side of the filter screens allow operators to regularly remove them for cleaning or replacement, ensuring stable filtration efficiency. A fan provides continuous suction power, ensuring dust smoothly enters the filter box 13, while the exhaust pipe discharges the filtered clean air, effectively improving the working environment and meeting environmental protection requirements.
[0020] refer to Figure 6 A sealing ring 16 is fixedly connected to the upper and lower parts of the filter box 13. The sealing ring 16 is respectively attached to the coarse filter screen 14 and the fine filter screen 15.
[0021] In this embodiment, the sealing ring 16 inside the filter box 13 is tightly fitted with the coarse filter screen 14 and the fine filter screen 15, which can effectively fill the gap between the filter screen and the filter box 13, prevent unfiltered dusty air from escaping from the gap, and ensure that all dusty air entering the filter box 13 can be filtered twice, greatly improving the sealing performance and filtration effect of the filtration mechanism.
[0022] refer to Figure 2 The tank body 1 is fixedly connected to a support frame 17, which is rotatably connected to the rotating shaft 3.
[0023] In this embodiment, the support frame 17 inside the tank 1 is rotatably connected to the rotating shaft 3 via a sealed bearing, providing an additional support point for the rotating shaft 3 and effectively enhancing its stability. When the motor 6 drives the rotating shaft 3 to rotate at high speed, the support frame 17 can effectively suppress the shaking and offset of the rotating shaft 3 caused by high-speed operation, ensuring that components such as the grinding block 4 and the cutting blade 9 on the rotating shaft 3 are always in a precise working position, thus guaranteeing the accuracy of grinding and cutting.
[0024] This invention first ensures that all structural connections are secure and in normal working order. After preparation, the fan of the dust collection mechanism is started via the controller. The fan creates negative pressure within the filter box 13, causing the first and second dust collection hoods 11 and 12 to generate suction. Once the fan's operation stabilizes, the motor of the pre-crushing mechanism is started. The motor drives the left gear to rotate, which in turn drives the side gears to rotate synchronously in opposite directions, causing the two crushing rollers 8 to rotate at a uniform speed towards each other. After the crushing rollers 8 are running smoothly, the motor 6 at the bottom of the tank 1 is started. The motor 6 drives the rotating shaft 3 to rotate, which in turn drives the grinding block 4, cutting blade 9, and scraper 10 to rotate, slowly and evenly pouring the concrete lime production raw materials into the feed hopper 2. After the raw material enters the feed hopper 2, it is initially crushed by the opposing rotating crushing rollers 8. The crushed raw material falls into the tank 1 and is first finely ground by the cooperation of the grinding block 4 and the grinding ring 5. The ground raw material continues to fall and is further cut and crushed by the high-speed rotating cutting blades 9. The scraper 10 continuously scrapes off the raw material adhering to the inner wall of the tank 1 during the rotation process to avoid raw material residue.
[0025] During the crushing process, the first dust hood 11 continuously collects the dust generated at the feed hopper 2, and the second dust hood 12 collects the dust near the electromagnetic discharge valve 7. The dust enters the filter box 13 through the pipe, and after being filtered twice by the coarse filter screen 14 and the fine filter screen 15, clean air is discharged from the exhaust pipe. When it is observed that the raw material in the tank 1 has been crushed, the electromagnetic discharge valve 7 is opened by the controller, and the crushed raw material is discharged from the bottom of the tank 1. During the discharge process, the scraper 10 continues to operate to ensure that the raw material in the tank 1 is completely discharged.
Claims
1. A raw material crushing tank for concrete lime production, comprising a tank body (1), characterized in that: The top of the tank (1) is provided with a pre-crushing mechanism. A grinding ring (5) is fixedly connected to the upper part of the inside of the tank (1). A rotating shaft (3) is rotatably connected inside the tank (1). A grinding block (4) is fixedly connected to the top of the rotating shaft (3). The grinding block (4) works in conjunction with the grinding ring (5). A cutting and crushing mechanism is provided inside the tank (1). A motor (6) is fixedly connected to the bottom of the tank (1). The output end of the motor (6) is fixedly connected to the rotating shaft (3). An electromagnetic discharge valve (7) is connected to the bottom of the tank (1). A dust collection mechanism is provided on the side of the tank (1).
2. The concrete lime production raw material crushing tank according to claim 1, characterized in that: The pre-crushing mechanism includes a feed hopper (2) connected to the top of the tank (1). Both sides of the feed hopper (2) are rotatably connected to crushing rollers (8). A driving mechanism is provided on the front of the feed hopper (2). The driving mechanism can drive the left and right crushing rollers (8) to rotate synchronously in opposite directions.
3. A raw material crushing hopper for concrete lime production according to claim 2, characterized in that: The cutting and crushing mechanism includes multiple cutting blades (9) that are uniformly fixedly connected to the surface of the rotating shaft (3). Multiple scraper racks (10) that are uniformly distributed in a ring are fixedly connected to the surface of the rotating shaft (3). The scraper racks (10) are in contact with the inner wall of the tank (1).
4. A raw material crushing hopper for concrete lime production according to claim 3, characterized in that: The dust collection mechanism includes a first dust collection hood (11) located above the side of the feed hopper (2) and a second dust collection hood (12) located on the side of the electromagnetic discharge valve (7). A filter box (13) is provided on the side of the tank (1). The air outlets of the first dust collection hood (11) and the second dust collection hood (12) are connected to the air inlet at the top of the filter box (13) through pipes. A coarse filter screen (14) and a fine filter screen (15) are slidably connected to the upper and lower parts of the filter box (13) respectively. The sides of the coarse filter screen (14) and the fine filter screen (15) extend to the side of the filter box (13) and are fixedly connected to a handle. A fan is fixedly connected to the inside of the filter box (13) and below the fine filter screen (15) through a bracket. An exhaust pipe is connected to the bottom of the side of the filter box (13).
5. A raw material crushing hopper for concrete lime production according to claim 4, characterized in that: The filter box (13) is fixedly connected to the upper and lower parts of the filter box (13), and the sealing rings (16) are respectively attached to the coarse filter screen (14) and the fine filter screen (15).