Impeller for sand making machine suitable for low density material
By increasing the size of the feed pipe and setting up impact blocks, throwing heads, and vertical plates, the problems of insufficient throughput and material blockage of low-density materials were solved, and the sand making machine achieved high-efficiency processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI CONCRETE ARTIFICIAL SAND EQUIP CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-06-02
AI Technical Summary
Existing sand making machines often suffer from insufficient throughput when processing low-density materials, leading to material blockage and reduced equipment utilization.
A sand making machine impeller suitable for low-density materials was designed. By increasing the height and inner diameter of the feed pipe, setting up impact blocks and throwing heads, the material passing speed is enhanced, and vertical plates are set inside the impeller to improve the contact force between the material and the crushing wall.
It increased the throughput of low-density materials, solved the material blockage problem, increased the equipment's capacity, and improved material handling efficiency.
Smart Images
Figure CN224308555U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sand making equipment technology, and in particular to a sand making machine impeller suitable for low-density materials. Background Technology
[0002] In existing sand making machine impellers, material enters through the feed pipe, and the impeller rotates at high speed, throwing the material out and causing it to collide with the surrounding liners to achieve the purpose of crushing. However, in actual applications, due to the small diameter of the feed pipe, the flow rate slows down when encountering materials with low density, leading to material blockage. Typically, only 80% of the equipment's designed throughput can be achieved. Utility Model Content
[0003] The purpose of this invention is to provide a sand making machine impeller suitable for low-density materials, so as to solve the problem of insufficient throughput when sand making machines process low-density materials.
[0004] This utility model provides a sand making machine impeller suitable for low-density materials, characterized in that: it includes an impeller body, a feed pipe is arranged above the impeller body, the height of the feed pipe is greater than 250mm, the inner diameter of the feed pipe is greater than 400mm, and the wall thickness of the feed pipe is greater than or equal to 40mm; the height of the internal space of the impeller body is 300mm to 400mm; a distribution cone is installed at the center of the lower end of the impeller body, and the diameter of the distribution cone is equal to the inner diameter of the feed pipe; the impeller body has an inner cavity, in which multiple impact blocks and multiple throwing heads are arranged, and the impact blocks and throwing heads are located around the distribution cone.
[0005] Furthermore, the sand making machine impeller for low-density materials provided by this utility model may also have the following features: a protective ring is installed and fixed at the upper port of the impeller body, the feed pipe is suspended above the protective ring and the lower end of the feed pipe forms a gap of 3mm to 5mm with the inner wall of the protective ring.
[0006] Furthermore, the sand making machine impeller suitable for low-density materials provided by this utility model may also have the following features: an upper impeller guard plate is provided on the upper end face of the impeller body by bolt connection, and a lower impeller guard plate is provided on the lower end face of the impeller body by bolt connection.
[0007] Furthermore, the sand making machine impeller suitable for low-density materials provided by this utility model may also have the following features: multiple sets of vertical plates are also provided in the inner cavity of the impeller body, and the vertical plates are fixed on the impeller body.
[0008] Furthermore, the sand making machine impeller suitable for low-density materials provided by this utility model may also have the following features: four sets of vertical plates are provided, and the four sets of vertical plates are evenly distributed in a ring array in the inner cavity.
[0009] The function and effects of this utility model:
[0010] The impeller of the sand making machine in this embodiment, which is suitable for low-density materials, speeds up the material passing through the impeller and increases the force when the material contacts the crushing wall, thereby increasing the production capacity. It allows low-density materials to pass through the impeller quickly, increasing production capacity while solving the problem of material blockage. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of a sand making machine impeller suitable for low-density materials in an embodiment of this utility model;
[0012] Figure 2 This is a partial structural dimension diagram of the sand making machine impeller suitable for low-density materials in an embodiment of this utility model;
[0013] Figure 3 This is a top view of a sand making machine impeller suitable for low-density materials in an embodiment of this utility model. Detailed Implementation
[0014] To make the technical means, creative features, objectives and effects of this utility model easy to understand, the following embodiments, in conjunction with the accompanying drawings, will specifically illustrate the technical solution of this utility model.
[0015] See Figures 1 to 3 This embodiment provides a sand making machine impeller suitable for low-density materials, including: impeller body 1, feed pipe 2, liner ring 3, upper impeller guard plate 4, throwing head 5, distribution cone 6, lower impeller guard plate 7, impact block 8, and vertical plate 9.
[0016] The impeller body 1 has an inner cavity. A feed pipe 2 is disposed above the impeller body 1. The height of the feed pipe 2 (e.g., ...) Figure 2 c) as shown is greater than 250mm. The inner diameter of the feed pipe 2 (e.g.) Figure 2 As shown in Figure a), the diameter a is greater than 400mm, and the wall thickness of the feed pipe 2 is greater than or equal to 40mm. In this embodiment, the inner diameter a is set to 450mm, and the wall thickness is set to 40mm. The height of the internal space of the impeller body 1 (e.g., ...) Figure 2 As shown in d), the diameter is 300mm to 400mm.
[0017] A protective ring 3 is fixedly installed at the upper end of the impeller body 1. The feed pipe 2 is suspended above the protective ring 3 via a device retainer, and a gap of 3mm to 5mm is formed between the lower end of the feed pipe 2 and the inner wall of the protective ring 3. The device retainer is a commercially available product of the prior art and is not shown in the accompanying drawings of this embodiment. The feed pipe 2 is suspended, and the impeller body 1 is connected to the bearing cylinder in the sand making machine to make it rotate. The rotation of the impeller body 1 drives the protective ring 3 to rotate. Due to the gap, the protective ring 3 will not collide with the feed pipe 2.
[0018] The material distribution cone 6 is installed at the center of the lower end of the impeller body 1. The diameter of the material distribution cone 6 (e.g., ...) Figure 2 As shown in b), the inner diameter of the feed tube 2 is equal to that of the feed tube 2. In this embodiment, the diameter b is set to 450 mm.
[0019] See Figure 1 and Figure 3 The impeller body 1 has multiple impact blocks 8 and multiple throwing heads 5 arranged inside its inner cavity, with the impact blocks 8 and throwing heads 5 located around the distribution cone 6. The impact blocks 8 are bolted to the impeller body, and the throwing heads 5 are fixed to the impact blocks 8. The impeller body 1 also has multiple sets of vertical plates 9 arranged inside its inner cavity, which are bolted to the impeller body 1. In this embodiment, four sets of vertical plates 9 are arranged in a circular array evenly distributed within the inner cavity.
[0020] An upper impeller guard plate 4 is bolted to the upper end face of the impeller body 1, and a lower impeller guard plate 7 is bolted to the lower end face of the impeller body 1.
[0021] In this embodiment, the impeller of the sand making machine suitable for low-density materials features a matching design between the feed pipe size and the distribution cone size. This accelerates the material's passage through the impeller, allowing low-density materials to pass through quickly and increasing the force of contact between the material and the crushing wall. This increases production capacity while resolving material blockage issues. Tests have shown that the impeller of this embodiment for low-density materials increases the throughput by nearly half compared to the existing conventional VK180 impeller.
[0022] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.
Claims
1. A sand making machine impeller suitable for low-density materials, characterized in that: Includes an impeller body, and a feed pipe is provided above the impeller body. The height of the feed pipe is greater than 250mm, the inner diameter of the feed pipe is greater than 400mm, and the wall thickness of the feed pipe is greater than or equal to 40mm. The height of the internal space of the impeller body is 300mm~400mm; The material distribution cone is installed at the center of the lower end of the impeller body, and the diameter of the material distribution cone is equal to the inner diameter of the feed pipe. The impeller body has an inner cavity, in which multiple impact blocks and multiple throwing heads are arranged, and the impact blocks and the throwing heads are located around the material distribution cone.
2. The sand making machine impeller suitable for low-density materials as described in claim 1, characterized in that: in, A protective ring is installed and fixed at the upper port of the impeller body, and the feed pipe is suspended above the protective ring with a gap of 3mm to 5mm between the lower end of the feed pipe and the inner wall of the protective ring.
3. The sand making machine impeller suitable for low-density materials as described in claim 1, characterized in that: in, An upper impeller guard plate is bolted to the upper end face of the impeller body, and a lower impeller guard plate is bolted to the lower end face of the impeller body.
4. The sand making machine impeller suitable for low-density materials as described in claim 1, characterized in that: in, The impeller body is also provided with multiple sets of vertical plates in its inner cavity, and the vertical plates are fixed on the impeller body.
5. The sand making machine impeller suitable for low-density materials as described in claim 4, characterized in that: in, The upright plate is provided in four sets, and the four sets of upright plates are evenly distributed in a ring array in the inner cavity.