How To Greatly Improve The Screening Efficiency Of Banana Screen

Banana screen is mainly used in coal, mining, gold and other industries, bearing the important functions of cleaning, grading, dehydration, desliming and desliming. In recent years, in order to adapt to the construction and development of the large coal preparation plants and mining plants in our country which are highly efficient, energy saving and environmental protection, the market demand of the large banana screen which is used for the material grading is gradually developed to a large size, the market demand of the large banana screen of thousands tons per hour is getting larger. For large banana screen, the material on the screen plate of large banana screen on the market is difficult to quickly spread on the screen plate in time, and simply increasing the tilt angle of the screen plate will cause the material to slip out too fast through the discharge end and the screening effect will be reduced.

In order to solve the above technical problems, one of the purposes of the invention is to provide a banana screen screen plate with simple structure, which can quickly spread the material at the feeding end and ensure adequate screening. To realize the above purpose, the technical scheme of the invention is as follows: A banana screen screen plate comprises a multi-segment screen plate, and the multi-segment screen plate is arranged sequentially and spliced in a slide-like manner along the front and back directions, the multi-segment screen plate and the horizontal plane tilt angle decreases from front to back, and the tilt angle between the subscreen plate and the horizontal plane at the front side does not exceed 40°. The inclined angle of the sub-sieve plate at the last side with the horizontal plane is not less than 3°. [0005] the beneficial effect of the above technical solution is that: By setting a multi-segment screen plate and splicing the multi-segment screen plate into a slidelike screen plate, that is, there is a certain angle between the two adjacent screen plates, so that the material at the feeding end of the screen plate can be quickly spread and at the same time, it can fully stay on each screen plate to realize the full screening of the material. The sub-sieve plate is provided with 3-10 segments. This makes the whole sieve plate more cushioned. The sub-screen plate is provided with 6 segments, and the inclination angle between the sub-screen plate and the horizontal plane of the multi-segment is 27°, 23°, 19°, 15°, 11° and 7° in the order from the beginning to the end. The beneficial effect is that the material can be quickly rolled out and quickly screened, so that the material can be optimized between the residence time on the screen plate and the screening efficiency. The size of the sub-sieve plate is consistent. In this way, the sub-sieve plate can be manufactured in a unified specification, which makes the manufacturing cost lower and the preparation efficiency higher. The sub-sieve plates are formed in one body. The beneficial effect is that its structure is simple and the strength of the sieve plate is high. The purpose of this design is to provide a banana screen cage that can quickly spread the material at the feed end while ensuring adequate screening. In order to achieve the above purpose, another technical scheme of the invention is as follows: A banana screen screen mesh box comprises the banana screen screen screen plate mentioned above.

This makes the material screening effect is good, and the material is spread quickly. The banana screen screen plate is provided with multiple layers, and the multilayer banana screen screen plate is arranged successively at intervals along the upper and lower directions, and the screen hole area of the multilayer banana screen screen plate is successively reduced from top to bottom. This enables multistage screening of the material. Banana screen screen has three layers. In this way, four-stage screening of materials can be achieved. [0021] a third object of the invention is to provide a banana screen for rapid screening of materials. It has the advantages of large capacity, high screening efficiency and good screening effect.

The banana screen plate designed by us comprises a multi-segment screen plate 111, and the multi-segment screen plate 111 is arranged sequentially and spliced in a slide shape along the front and back directions, and the tilt angle between the multi-segment screen plate 111 and the horizontal plane decreases from front to back. And the inclined angle between the front screen plate 111 and the horizontal plane is not more than 40°, the inclined angle between the last screen plate 111 and the horizontal plane is not less than 3°, by setting a multi-segment screen plate, and spliced into a slide-like screen plate by the multi-segment screen plate, that is, there is a certain angle between the adjacent two sections of screen plates. In this way, the material at the feed end of the screen plate can be quickly rolled out, and at the same time, it can fully stay on the screen plate of each section to achieve the full screening of the material. The neutron screen plate 111 is provided with 3-10 segments, which makes the whole screen plate more buffered. The sub-screen plate 111 is provided with 6 segments, and the multi-segment sub-screen plate 111 and the horizontal plane tilt angle from the order of 27°, 23°, 19°, 15°, 11° and 7°, so that the material can be quickly rolled out and fast screening, so that the material on the screen plate retention time and screening efficiency between the optimization. Further preferably, the size of the multi-segment sieve plate is the same, so that the sieve plate can be prepared in a unified specification, making its manufacturing cost lower, higher preparation efficiency, the sieve plate corresponding to this structure can quickly pass through the large angle area of the front end of the sieve plate, and the small particle grade powder material through the speed is slower than the large particle grade material. At this time, the large inclination area can accelerate the material layering so that small materials can be screened quickly in advance. With the decreasing inclination of the screen surface, the running speed of the material is reduced at the same time, the material on the screen surface is gradually reduced because of the sifting, so that the thickness of the material on the screen surface is maintained approximately the same thickness, which is easy to roll and layer the material, which improves the running speed of the material and increases the processing capacity of the equipment.