Impact cavity of impact crusher and recovery and separation system based on impact crusher

Abstract

The utility model discloses an impact cavity of an impact crusher and a recovery and separation system based on the impact crusher. The impact cavity comprises a shell and a protective plate installed on the shell, a plurality of clamping grooves are formed in the shell, clamping blocks matched with the clamping grooves are arranged on the protective plate, and a limiting plate for limiting the protective plate is arranged above the clamping grooves. The recycling and separating system comprises a material bin, an impact crusher, a screening device and a probability screening device, wherein the material bin, the impact crusher, the screening device and the probability screening device are horizontally arranged in sequence; the impact crusher is composed of an impact cavity; the screening device is used for primarily screening stripped recycled materials; according to the utility model, the clamping groove and the clamping block which are clamped are arranged on the shell and the protective plate of the impact cavity, so that the connection stability between the protective plate and the shell of the impact cavity is improved; by adopting the guard plate mounting structure, the replacement of quick-wear parts of the impact cavity of the impact crusher is more time-saving and labor-saving, and the damaged parts such as the guard plate can be replaced at any time, so that the maintenance time is shortened; therefore, equipment work efficiency is improved and production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of impact crusher equipment, and more particularly to the impact chamber of an impact crusher and a recycling and separation system based on the impact crusher. Background Technology

[0002] Impact crushers are commonly used in the recycling process of road surface recyclables. Small impact crushers can separate the recyclables into components of different particle sizes, and for larger particles, they can crush them to the required particle size range. Impact crushers can also remove impurities from the recyclables, such as non-asphalt materials like non-woven fabrics and plastics. In asphalt pavement recyclables, stones and asphalt often exist in "agglomerate" form. This "agglomerate" structure affects the performance of the recycled material. Impact crushers utilize the principle that different materials have different crushing values ​​to separate the stones from the asphalt, stripping the asphalt from the stone surface and thus improving the quality of the recycled material. Therefore, a guard plate is installed inside the impact chamber of the impact crusher, primarily to increase the collision effect of the recyclables within the chamber, further improving the crushing and impurity removal efficiency.

[0003] In existing equipment, the guard plate is mainly fixed to the impact chamber wall by bolt and nut connection; for example, the patent publication text with authorized public number CN222152143U mentions a crushing vortex chamber of a mining sand making machine, including a shell, a bottom plate is provided at the bottom of the shell, a central hole is provided in the middle of the surface of the bottom plate, an annular plate is provided in the inner cavity of the shell above the bottom plate and is detachably connected to it, a plurality of lining plates arranged in a circumferential array and bolted between the bottom of the annular plate and the upper surface of the bottom plate are provided, and a plurality of rib plates connected by bolts are provided on the upper surface of the annular plate. However, in actual operation, the protective plate is constantly subjected to vibration and radial impact loads, and the bolts and nuts are under long-term stress. The thread root of the bolt-nut connection is a stress concentration area, which is prone to fatigue cracks. Under alternating loads, these cracks will propagate, eventually leading to bolt breakage. Stress concentration will also occur on the connected parts, namely the impact cavity wall or the bolt hole edge on the annular plate mentioned in the above literature. In high-strength connections, this can lead to crack propagation at the hole edge, ultimately causing the protective plate and impact cavity to detach. To prevent breakage and detachment, regular safety inspections are necessary, and the protective plate and impact cavity should be replaced immediately if any damage is found. In the case of bolt-nut connections, the protective plate and impact cavity are usually replaced as a whole, which is relatively wasteful of materials and time, reduces production efficiency, and increases production costs.

[0004] Therefore, it is necessary to change the connection method between the guard plate and the impact chamber to improve the connection stability between the two and enable component replacement, thereby reducing production costs. Utility Model Content

[0005] Purpose of the utility model: The purpose of this utility model is to provide an impact chamber of an impact crusher with stable connection and the ability to disassemble and replace damaged parts, that is, a recycling and separation system based on the impact crusher.

[0006] Technical solution: The impact chamber of the impact crusher of this utility model includes a shell and a protective plate installed on the shell; the shell is provided with a plurality of slots, and the protective plate is provided with a locking block that cooperates with the slot; a limiting plate is provided above the slot to limit the movement of the protective plate.

[0007] Furthermore, the bottom plate of the impact chamber is also equipped with a pad that works with the limiting plate to limit the position of the guard plate.

[0008] Furthermore, the limiting plate of the impact chamber is fixedly connected to the housing via a flange.

[0009] Furthermore, the groove of the impact chamber is a T-shaped groove with an opening at the top and a closed opening at the bottom, and the locking block is a T-shaped locking block.

[0010] Furthermore, the impact chamber has a connecting groove below the protective plate that engages with the pad block.

[0011] Furthermore, the impact cavity's slot and the housing are integrally formed; the protective plate and the locking block are integrally formed.

[0012] The present invention discloses a recycling and separation system comprising a material bin arranged horizontally in sequence, an impact crusher consisting of an impact chamber, a screening device for initial screening of the stripped recycled material, and a probability screening device for grading and classifying the fine material obtained after initial screening.

[0013] Furthermore, the recycling and separation system also includes a dust removal device for removing dust from the material drop points of the impact crusher, screening device, and probability screening device.

[0014] Beneficial effects: Compared with the prior art, the advantages of this utility model are: by setting the snap-fit ​​groove and snap-fit ​​block on the shell and the guard plate of the impact chamber, the connection stability between the guard plate and the shell is improved; and by adopting this guard plate installation structure, it is more time-saving and labor-saving to replace the vulnerable parts of the impact crusher impact chamber, and if the guard plate and other parts are damaged, they can be replaced at any time, reducing maintenance time; thereby improving equipment efficiency and reducing production costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the cross-sectional structure of the impact crusher of this utility model;

[0016] Figure 2 This is a schematic diagram of the impact cavity structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the protective plate structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the impact cavity of this utility model;

[0019] Figure 5 This is a schematic diagram of the recycling and separation system of this utility model. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0021] This invention optimizes and improves the impact chamber structure of existing impact crushers, while the crusher structure itself is known technology, such as the V-3000 impact crusher. The improved impact chamber structure is as follows: Figures 1 to 4 As shown, specifically, it includes a housing 1, a protective plate 2 mounted on the housing 1. Several slots 3 are integrally formed on the inner wall of the housing 1, and the slots 3 are T-shaped slots. The protective plate 2 has integrally formed locking blocks 4, which are T-shaped blocks that engage with the T-shaped slots. The T-shaped slots and T-shaped blocks form a sealed fit, improving connection strength and preventing dust and other impurities from entering the slots 3. To facilitate disassembly of the protective plate 2, the upper part of the slots 3 is open, and the locking blocks on the protective plate 2 enter the slots 3 from top to bottom. Furthermore, to prevent dust and other impurities from accumulating inside the slots 3, the lower end of the slots 3 is sealed.

[0022] The bottom of the housing 1 is integrally formed with several pads 6 corresponding to the protective plate 2. The bottom of the protective plate 2 has a connecting groove that engages with the pads 6. This connection method effectively prevents the protective plate 2 from shifting under impact. When the protective plate 2 enters from the upper end of the groove 3, it slides downward until it engages with the pads 6. At this time, a limiting plate 5 is installed on the housing 1 via a flange. The limiting plate 5 and the pads form a clamping effect on the protective plate 2, limiting its movement at both the upper and lower ends to prevent the protective plate 2 from shaking under force during the crushing and separation process.

[0023] The impact crusher based on the impact chamber described above, as proposed in this invention, can be directly applied to recycling and separation systems, specifically, as follows: Figure 5As shown, the recycling and separation system includes a material silo 7, an impact crusher 8, a screening device 9 for initial screening of the stripped recycled material, a probability screening device 10 for grading and fine screening of the fine material obtained after initial screening, and a dust removal device for dust removal at the material drop points of the impact crusher 8, screening device 9, and probability screening device 10. This horizontal arrangement of the recycling and separation system reduces the cost of the vertical support frame and allows for flexible adjustment according to different applications, thus lowering production costs. Furthermore, the material silo 7, screening device 9, probability screening device 10, and dust removal device themselves can all utilize existing system components, such as those disclosed in application number 2023219757959, entitled "An Asphalt Road Recycling Material Asphalt-Stone Separation System." The connections between the various components can be made using a hoist or a belt conveyor.

Claims

1. An impact chamber of an impact crusher, characterized in that The impact chamber comprises a shell (1) and a guard plate (2) mounted on the shell (1); the shell (1) is provided with a plurality of clamping grooves (3), and the guard plate (2) is provided with clamping blocks (4) matched with the clamping grooves (3); the clamping grooves (3) are provided with limiting plates (5) above for limiting the guard plate (2).

2. The impact chamber of an impact crusher according to claim 1, characterized in that The bottom plate of the shell (1) is further provided with a cushion block (6) matched with the limiting plate (5) for limiting the guard plate (2).

3. The impact chamber of an impact crusher according to claim 1, characterized in that The limiting plate (5) is fixedly connected with the shell (1) through a flange.

4. The impact chamber of an impact crusher according to claim 1, characterized in that The clamping groove (3) is a T-shaped groove with an upper opening and a lower seal, and the clamping block (4) is a T-shaped clamping block.

5. The impact chamber of an impact crusher as claimed in claim 2, characterized in that The guard plate (2) is provided with a connecting groove below matched with the cushion block (6).

6. The impact chamber of an impact crusher as claimed in claim 1, characterized in that The clamping groove (3) and the shell (1) are integrally formed; and the guard plate (2) and the clamping block (4) are integrally formed.

7. A recycling separation system characterized by, The recycling and separating system comprises a material bin (7) arranged horizontally, an impact crusher (8) composed of the impact chamber according to any one of claims 1-6, a screening device (9) for primary screening of the stripped recycling material, and a probability screening device (10) for fine screening of the fine material obtained after the primary screening.

8. The recovery separation system of claim 7, wherein, The recycling and separating system further comprises a dust removal device for dust removal of the material falling points of the impact crusher (8), the screening device (9) and the probability screening device (10).

Images