Novel winnowing machine with separating rollers capable of conveniently reducing

Abstract

A novel winnowing machine with a separating roller capable of conveniently reducing comprises a feeding conveying belt, the discharging end of the feeding conveying belt corresponds to the separating roller, the discharging end of the feeding conveying belt extends into a box body, an air inlet is formed in the bottom between the separating roller and the discharging end of the feeding conveying belt, the air inlet is communicated with a high-pressure fan, an air return opening is formed in the box body, and the air return opening is communicated with the high-pressure fan. The air return opening is communicated with the high-pressure fan through an air return pipe, the separation roller comprises a separation roller body, and roller skin is arranged outside the separation roller body. According to the utility model, on one piece of equipment, the roller skins of the separation rollers with different diameters are replaced, so that the quick diameter change of the separation rollers is realized, materials with different properties are separated on the same piece of equipment, the multiple purposes of one machine are realized, and the investment cost is reduced; meanwhile, according to different production stages, different properties of the separated materials, different proportions of the materials, different lumpiness sizes of the materials and different dry and wet conditions of the materials, the separation roller with the optimal outer cylindrical diameter is selected according to the actual material conditions, the separation capacity of equipment is improved, and the economic benefits of enterprises are increased.

Description

Technical Field

[0001] The utility model relates to a sorting and processing device for construction, decoration, stale and domestic garbage, in particular to a pneumatic separator with a novel separating roller whose diameter can be conveniently changed. Background Art

[0002] Since the sources of construction waste and decoration waste are multiple and the raw materials are extremely complex, various decoration waste and domestic garbage are mixed in. During the recycling process of construction waste and decoration waste, for large pieces of waste, manual sorting can be carried out. However, it is difficult to completely pre-separate plastic bags, plastic sheets, cartons, old clothes and fabrics, thin steel bars, aluminum alloy thin strips, sponges, foams, asbestos cloth, asbestos boards, weeds, etc. mixed in construction waste and decoration waste, and the labor intensity of workers during separation is also very high. These materials must be separated and sorted first, and then the subsequent recycling processes of various materials are carried out to obtain various recycled materials of construction and decoration waste with high quality and high purity.

[0003] At present, for different models of pneumatic separators, the diameters of the separating rollers of the pneumatic separators are different. When dealing with various construction, decoration, stale and domestic garbage, pneumatic separators of corresponding models are required, resulting in higher costs. Moreover, the high-pressure fan mainly provides high-pressure air for pneumatic separation, and the remaining air after pneumatic separation is not recycled, so the efficiency of the fan is relatively low. Summary of the Invention

[0004] The purpose of the utility model is to provide a pneumatic separator with a novel separating roller whose diameter can be conveniently changed. According to the specific situation of the materials, roller skins with corresponding diameters are selected and fixed on the separating roller body to form separating rollers with different diameters corresponding to the size of the materials. That is, on one pneumatic separator, separating rollers with different diameters can be installed to adapt to different materials. At the same time, the remaining air of the high-pressure fan is recycled to improve the efficiency of the fan.

[0005] The purpose of the utility model is achieved by the following means:

[0006] A pneumatic separator with a novel separating roller whose diameter can be conveniently changed includes a feeding conveyor belt. The discharging end of the feeding conveyor belt corresponds to the separating roller, and the other side of the separating roller corresponds to a light material conveyor belt. A box body is arranged outside the separating roller, and the discharging end of the feeding conveyor belt extends into the box body. An air inlet is arranged at the bottom between the separating roller and the discharging end of the feeding conveyor belt, and the air inlet is communicated with a high-pressure fan. A return air port is arranged on the box body above the discharging port of the feeding conveyor belt, and the return air port is communicated with the high-pressure fan through a return air pipe. The separating roller includes a separating roller body, and a roller skin is sleeved outside the separating roller body.

[0007] In the above-mentioned air classifier with a novel separating roller whose diameter can be conveniently changed, the roller skin consists of two semi-circular roller skins. Bolt holes are provided on the separating roller body, and both ends of the semi-circular roller skin are fixed in the bolt holes on the separating roller body through bolts.

[0008] In the above-mentioned air classifier with a novel separating roller whose diameter can be conveniently changed, a rubber-coated layer is further sleeved outside the roller skin.

[0009] In the above-mentioned air classifier with a novel separating roller whose diameter can be conveniently changed, the thickness of the roller skin is 50 - 100 mm.

[0010] In the above-mentioned air classifier with a novel separating roller whose diameter can be conveniently changed, the thickness of the rubber-coated layer is 10 - 20 mm.

[0011] In the above-mentioned air classifier with a novel separating roller whose diameter can be conveniently changed, air nozzles are provided on the air inlet, and the air outlet direction of the air nozzles is directly opposite to the material flow direction.

[0012] In the above-mentioned air classifier with a novel separating roller whose diameter can be conveniently changed, the roller skin is one layer, two layers or three layers, and is sequentially sleeved outside the separating roller body.

[0013] Compared with the prior art, the present utility model has the following technical effects:

[0014] During the air classification process, according to the material situation, a separating roller with a corresponding diameter is selected. Through the contact between the material and the separating roller with the corresponding diameter and the action of wind force, the separation of heavy and light materials is achieved. Since different-diameter separating rollers are formed by installing roller skins with different diameters, this design of variable-diameter separating rollers can change the movement trajectory and force-bearing situation of the material on the roller, making it easier to distinguish materials with different characteristics. A separating roller with a larger diameter can provide a larger frictional force, increase the resistance to the air flow, change the movement speed of the corresponding material, and help separate heavier or larger materials; while a separating roller with a smaller diameter can have a different effect on lighter or smaller materials, making it easier for them to be carried away by the air flow, thereby achieving a more precise sorting effect. At the same time, the remaining air after air classification is recycled to improve the efficiency of the fan.

[0015] The present utility model can quickly change the diameter of the separating roller by replacing the roller skins with different diameters on one device, separate materials with different properties on the same device, achieve "one machine with multiple functions", and reduce the investment cost; at the same time, according to the different production stages, the properties of the materials to be separated, the proportion of the materials, the size of the material blocks, and the dry and wet conditions of the materials, the separating roller with the optimal outer cylinder diameter can be selected according to the actual material situation to improve the sorting ability of the device and increase the economic benefits of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the present utility model.

[0017] Figure 2 It is a schematic diagram of the separating roller structure.

[0018] Figure 3 is Figure 2 cross-sectional view of. Specific embodiments

[0019] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0020] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0021] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0022] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] The following will Figures 1 - 3 Specifically and in detail, the structure and working process of the present utility model will be described.

[0024] Such as Figures 1 - 3As shown in the figure, a pneumatic separator with a new type of separation roller whose diameter can be conveniently changed includes a feeding conveyor belt 7. The discharging end of the feeding conveyor belt corresponds to the separator 2, and the other side of the separation roller corresponds to the light material conveyor belt 1. A box body 3 is provided outside the separation roller, and the discharging end of the feeding conveyor belt extends into the box body. An air inlet is arranged at the bottom between the separation roller 2 and the discharging end of the feeding conveyor belt, and the air inlet is communicated with a high-pressure blower 9. A return air outlet is arranged on the box body at the upper end of the discharging opening of the feeding conveyor belt, and the return air outlet is communicated with the high-pressure blower through a return air duct 6. The separation roller 2 includes a separation roller body 2-1, and a roller skin 2-2 is sleeved outside the separation roller body. The high-pressure blower of the present invention is a blower installed on the pneumatic separator and controlled by a frequency converter. According to different powers of the blower and the regulation of the frequency converter, different sizes of wind forces are generated to pneumatically separate different sizes of light materials and collect dust.

[0025] As Figure 2 and Figure 3 shown in the figure, for the pneumatic separator with a new type of separation roller whose diameter can be conveniently changed described in the present invention, the roller skin is composed of two semi-circular roller skins. Bolt holes are provided on the separation roller body 2-1, and both ends of the semi-circular roller skin are fixed in the bolt holes on the separation roller body through bolts 2-3. After the two semi-circular roller skins are installed, a circular roller skin sleeved outside the separation roller body is formed. This design facilitates the disassembly and assembly of roller skins with different thicknesses to form separation rollers with different diameters.

[0026] In order to realize the quick diameter change of the separation roller, when designing and producing the separation roller of the pneumatic separator in the present invention, the separation roller body 2-1 is first designed, and then a series of roller skins with different thicknesses are designed. By replacing roller skins with different thicknesses, separation rollers with different diameters are formed, and the diameter of the separation roller cylinder is quickly changed by a simple method of disassembling and assembling with fixing bolts.

[0027] For the pneumatic separator with a new type of separation roller whose diameter can be conveniently changed described in the present invention, in order to make the surface of the separation roller wear-resistant, anti-slip and increase the friction force, a rubberized layer 2-4 is also sleeved outside the roller skin to improve the service performance of the equipment.

[0028] For the pneumatic separator with a new type of separation roller whose diameter can be conveniently changed described in the present invention, the thickness of the roller skin is 50-100 mm, and the thickness of the rubberized layer is 10-20 mm.

[0029] For the pneumatic separator with a new type of separation roller whose diameter can be conveniently changed described in the present invention, an air nozzle is arranged on the air inlet, and the air outlet direction of the air nozzle is directly opposite to the material flow direction.

[0030] For the pneumatic separator with a new type of separation roller whose diameter can be conveniently changed described in the present invention, according to different materials, one layer of roller skin, two layers of roller skin or three layers of roller skin can be sleeved outside the separation roller body, and a rubberized layer is sleeved outside the outermost roller skin.

[0031] For the general conventional separation of materials mainly composed of construction waste, a conventional separation roller body can be used. When using the separation roller body, the bolt holes on the separation roller body are sealed by dust-proof bolts, so that a small amount of light substances mixed in it can be smoothly carried away by the air flow, realizing the separation of light substances and heavy substances. When changing the roller skin, unscrew this dust-proof bolt and fix the roller skin in the bolt holes on the separation roller body with the bolts connecting the roller skin. For the separation of materials mainly composed of decoration and garbage, roller skins with a diameter 50 - 100 mm larger than the diameter of the basic roller can be added to the outer cylinder of the conventional separation roller body. In this way, the outer diameter of the separation roller is increased, and large and medium-weight materials can be blocked, thus realizing the separation of materials. For the separation and treatment of domestic waste and stale waste, the diameter of the separation roller can be increased by another 50 - 100 mm. In this way, the blocking effect on light substances will be greater, thus realizing the rapid separation of materials containing a large amount of light substances. In this way, it is possible to use the same air classifier, and by replacing the separation rollers with different diameters, the separation of different raw materials can be carried out, achieving the purpose of "one machine with multiple functions" and reducing the investment cost.

[0032] During the air separation process, according to the material situation, a separation roller with a corresponding diameter is selected. Through the contact of the material with the separation roller of the corresponding diameter and the action of the wind force, the separation of light and heavy materials is realized. Since different-diameter separation rollers are formed by installing roller skins with different diameters, this design of variable-diameter separation rollers can change the movement trajectory and force conditions of the material on the roller, making it easier to distinguish materials with different characteristics. Larger-diameter separation rollers can provide greater friction, increase the resistance to the air flow, change the movement speed of the corresponding materials, and help separate heavier or larger materials; while smaller-diameter separation rollers can have different effects on lighter or smaller materials, making it easier for them to be carried away by the air flow, thus achieving a more precise sorting effect. At the same time, the remaining air after air separation is recycled to improve the efficiency of the fan.

[0033] The utility model can quickly change the diameter of the separation roller by replacing the roller skins with different diameters on one device, separate materials with different properties on the same device, achieve "one machine with multiple functions", and reduce the investment cost; at the same time, according to the different stages of production, the properties of the materials to be separated, the proportion of the materials, the size of the material blocks, and the dry and wet conditions of the materials, the separation roller with the best outer cylinder diameter can be selected according to the actual material situation to improve the sorting ability of the device and increase the economic benefits of the enterprise.

[0034] The above are only the preferred embodiments of the utility model. It should be pointed out that for those skilled in the art, without departing from the overall concept of the utility model, several changes and improvements can still be made, and these should also be regarded as the protection scope of the utility model.

Claims

1. A novel air separator with a separation roller that can be easily changed in diameter, comprising a feed conveyor belt, the discharge end of the feed conveyor belt corresponds to the separation roller, and the other side of the separation roller corresponds to the light material conveyor belt, characterized in that: The outer cover of the separation roller is provided with a box body, and the discharge end of the feed conveyor belt extends into the box body. An air inlet is provided at the bottom between the separation roller and the discharge end of the feed conveyor belt, and the air inlet is connected to the high-pressure fan. A return air port is provided on the box body at the upper end of the feed conveyor belt discharge port, and the return air port is connected to the high-pressure fan through a return air duct. The separation roller includes a separation roller body, and a roller skin is provided on the outer cover of the separation roller body.

2. The novel air separator with a separation roller that can be easily changed in diameter according to claim 1 is characterized in that: The roller skins are two semicircular roller skins. Bolt holes are arranged on the separation roller body. The two ends of the semicircular roller skins are fixed in the bolt holes on the separation roller body by bolts.

3. The novel air separator with a separation roller that can be easily changed in diameter according to claim 1 is characterized in that: The roller skin is also covered with a rubber coating.

4. The novel air separator with a separation roller that can be easily changed in diameter according to claim 1 is characterized in that: The thickness of the roller skin is 50-100 mm.

5. The novel air separator with a separation roller that can be easily changed in diameter according to claim 3 is characterized in that: The thickness of the glue layer is 10-20mm.

6. The novel air separator with a separation roller that can be easily changed in diameter according to claim 1 is characterized in that: An air nozzle is arranged on the air inlet, and the air outlet direction of the air nozzle faces the material flow direction.

7. The novel air separator with a separation roller that can be easily changed in diameter according to claim 1 is characterized in that: The roller skin has one layer, two layers or three layers, and is sequentially sleeved outside the separation roller body.

Images