Circular vibrating bar screen machine

Abstract

The utility model relates to a kind of round vibrating stick bar screen machines, including support frame and vibration frame, elastic support is equipped between support frame and vibration frame, vibration frame includes two vertically arranged side plates, several transversely arranged connecting pieces are equipped between two side plates, bottom between two side plates is equipped with a layer of screen plate, upper portion is equipped with a layer of stick screen, screen and stick screen are all inclined arrangement, the stick screen includes several steel sticks, screen gap is equipped between stick and stick, screen plate and stick screen are equipped with round vibrating motor;The utility model can quickly filter large sundries by setting upper layer stick screen, improve screening efficiency;The screen gap of stick screen gradually increases from upstream to downstream, conducive to realizing grading screening, reduce the processing pressure of downstream, let downstream only focus on separating medium coarse granularity material, improve overall screening smoothness.

Description

Technical Field

[0001] This utility model relates to the field of vibrating screen machines, specifically a circular vibrating bar screen machine. Background Technology

[0002] Vibrating screens are commonly used equipment in industry, especially in mining and mineral processing, where various types of vibrating screens are required. For open-pit mining, the material may contain debris such as branches and leaves. These debris are generally larger than the ore, and the sizes of different debris vary greatly. Usually, such ore only undergoes preliminary crushing, and the particle size range of the ore is relatively wide, resulting in low efficiency in grading. Existing vibrating screens are often inefficient in processing such materials and are prone to clogging, with poor particle size classification capabilities. Summary of the Invention

[0003] The purpose of this invention is to solve the problems existing in the prior art and to provide a circular vibrating bar screen.

[0004] The specific solution of this utility model is as follows: a circular vibrating bar screen machine, including a support frame and a vibrating frame, with an elastic support member installed between the support frame and the vibrating frame. The vibrating frame includes two vertically arranged side plates, with several horizontally arranged connecting members between the two side plates. A layer of screen plate is provided at the bottom between the two side plates, and a layer of bar screen is provided at the top. Both the screen and the bar screen are arranged at an incline. The bar screen includes several steel bars, with screen gaps between the bars. A circular vibrating motor is provided between the screen plate and the bar screen.

[0005] Furthermore, the bar screen is composed of several layers of bar frames, and the upstream height of each bar frame is lower than the downstream height of the bar frame above it.

[0006] Furthermore, the bar frame includes a connecting frame, which has a hollow center and is fixedly connected to the side plates on both sides. Several bars are fixedly mounted on the connecting frame, and both the front and rear ends of the bars are fixedly connected to the connecting frame.

[0007] Furthermore, the bars are trapezoidal with the upstream side longer than the downstream side, so that the sieve openings in each layer of the bar frame gradually increase from top to bottom.

[0008] Furthermore, a clamping device is provided on the inner side of the two side plates corresponding to the sieve plate, and the clamping device is used to clamp the sieve plate.

[0009] Furthermore, the bar screen has an angle of 5°-10° between its screen surface and the horizontal plane, and the screen plate has an angle of 10°-15° between its screen surface and the horizontal plane.

[0010] This utility model has the following beneficial effects: 1. By setting an upper bar screen, large impurities can be filtered quickly. Vibration allows the material blocked in the upstream screen gaps to slide into the downstream screen for secondary screening, thus improving screening efficiency; 2. The screen gaps of the bar screen gradually increase from upstream to downstream, which is conducive to achieving graded screening, reducing the processing pressure downstream, allowing the downstream to focus only on separating medium and coarse particles, and improving the overall screening smoothness. Attached Figure Description

[0011] Figure 1 This is a perspective view of the present invention;

[0012] Figure 2 This is a top view of the present invention;

[0013] Figure 3 yes Figure 2 AA view;

[0014] Figure 4 yes Figure 2 Enlarged view of point V;

[0015] Figure 5 This is a three-dimensional schematic diagram of the bar screen of this utility model;

[0016] In the diagram: 1. Support frame; 2. Elastic support component; 3. Circular vibrating motor; 4. Side plate; 5. Bar screen; 6. Screen plate; 7. Clamping device; 51. Connecting frame; 52. Bar; 53. Screen slot. Detailed Implementation

[0017] See Figure 1-5This embodiment is a circular vibrating bar screen, including a support frame 1 and a vibrating frame. An elastic support member 2 is installed between the support frame 1 and the vibrating frame. The vibrating frame includes two vertically arranged side plates 4, and several horizontally arranged connecting members are provided between the two side plates 4. A screen plate 6 is provided at the bottom between the two side plates 4, and a bar screen 5 is provided at the top. Both the screen and the bar screen 5 are arranged at an incline. The bar screen 5 includes several steel bars 52, and screen gaps 53 are provided between the bars 52. A circular vibrating motor 3 is provided between the screen plate 6 and the bar screen 5. Further, the bar screen 5 is composed of several layers of bar 52 frames, and the upstream height of each layer of bar 52 frames is lower than the downstream height of the layer above, forming a stepped arrangement. Furthermore, the bar frame 52 includes a connecting frame 51, which is hollow in the middle and fixedly connected to the side plates 4 on both sides. Several bars 52 are fixedly mounted on the connecting frame 51, with both ends of the bars 52 fixedly connected to the connecting frame 51. Furthermore, the bars 52 are trapezoidal, with the upstream side length L1 greater than the downstream side length L2, causing the sieve gaps 53 of each layer of the bar frame to gradually increase from top to bottom. Furthermore, clamping devices 7 are provided on the inner sides of the two side plates 4 and at the bottom of the vibrating frame corresponding to the sieve plate 6. The clamping devices 7 are used to clamp the sieve plate 6. The sieve plate 6 in this invention is composed of several small sieve plates 6 spliced ​​together. The clamping devices 7 firmly fix each sieve plate 6 to the vibrating frame, preventing it from falling off. Furthermore, the sieve surface of the bar screen 5 has an angle of 5°-10° with the horizontal plane, and the sieve plate 6 has an angle of 10°-15° with the horizontal plane. When this invention is in operation, the material enters the screening machine from the upstream of the upper bar screen 5. As the circular vibrating motor 3 drives the entire vibrating frame to vibrate, both the upper bar screen 5 and the lower screen plate 6 vibrate at a certain frequency. Larger debris such as tree branches and large ore particles that have not been completely crushed are intercepted by the bar screen 5 in the upper layer, while smaller ore particles pass through the screen gaps 53 and fall onto the lower screen plate 6 for secondary screening. The smaller particles pass through the upstream of the screen gaps 53 first, while the larger ore particles roll down to the downstream of the screen gaps 53 before passing through the screen gaps 53 to fall into the lower layer. This facilitates the grading of the ore, improves the utilization rate of the bar screen 5 and screen plate 6, avoids local blockage, and improves the overall screening efficiency.

Claims

1. A circular vibrating bar screen, characterized in that: It includes a support frame and a vibration frame. An elastic support is installed between the support frame and the vibration frame. The vibration frame includes two vertically arranged side plates. Several horizontally arranged connectors are provided between the two side plates. A sieve plate is provided at the bottom between the two side plates, and a bar screen is provided at the top. Both the sieve and the bar screen are arranged at an incline. The bar screen includes several steel bars. There are sieve gaps between the bars. A circular vibration motor is provided between the sieve plate and the bar screen.

2. The circular vibrating bar screen according to claim 1, characterized in that: The bar screen is composed of several layers of bar frames, and the upstream height of each bar frame is lower than the downstream height of the bar frame above it.

3. A circular vibrating bar screen according to claim 2, characterized in that: The bar frame includes a connecting frame, which has a hollow center and is fixedly connected to the side plates on both sides. Several bars are fixedly mounted on the connecting frame, and both the front and rear ends of the bars are fixedly connected to the connecting frame.

4. A circular vibrating bar screen according to claim 2 or 3, characterized in that: The bars are trapezoidal with the upstream side longer than the downstream side, so that the sieve openings in each layer of the bar frame gradually increase from top to bottom.

5. A circular vibrating bar screen according to claim 1, characterized in that: The inner sides of the two side plates are provided with clamping devices corresponding to the sieve plate, which are used to clamp the sieve plate.

6. A circular vibrating bar screen according to claim 1, characterized in that: The bar screen has an angle of 5°-10° between its screen surface and the horizontal plane, and the screen plate has an angle of 10°-15° between its screen surface and the horizontal plane.

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