Double-frequency double-stage light material winnowing machine
By designing a dual-frequency and double-stage light-matter air selector, using a bent material channel and a two-stage air fan, combined with a breaking roller and a spray device, the problems of low sorting and high energy consumption of existing equipment are solved, and efficient light-matter sorting and output improvement are achieved.
Patent Information
- Application Number
- CN202421812784.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The existing light material sorting equipment has problems such as low sorting net ratio, high energy consumption, dust pollution, excessive equipment size, large power usage, and unintelligent control system, which cannot meet the needs of large-scale and large-scale production.
A dual-frequency, double-stage light material air selector is designed, using bent material channels and fans of two stages of different frequencies, combined with dispersing rollers, air duct plates, adjustment slides and spraying devices, forming a cyclic workflow to improve the dispersion and net ratio of materials.
The net ratio has been increased to more than 95%, while reducing energy consumption, increasing output, and making the equipment moderate in size and more convenient to use.
Smart Images
Figure CN222970347U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a wind separation device, in particular to a dual-frequency and dual-stage light material air separator suitable for the resource utilization of construction waste. Background Technique
[0002] The main way to utilize construction waste as a renewable resource is to crush it into various grades of aggregates and then use it for production and construction again. However, during the crushing process, light materials such as building wood, plastics, fabrics, and dust are mixed in. These light materials must be separated from the aggregates to ensure the quality of the aggregates. The existing light material separation methods are one is manual picking, and the other is machine separation. Manual sorting has a large workload and low efficiency, cannot meet large-scale and high-output production, and is harmful to the physical health of personnel; machine separation mainly relies on the blowing and screening of a fan. Currently, there are problems such as low separation and purification rate, high energy consumption, and dust pollution.
[0003] There are many types of existing similar equipment on the market, the control system operation is backward, and the material processing effect is average. The material separation and purification rate is generally about 70%-85%. However, there is an upgraded version of similar equipment on the market, but the equipment is too large in size, has a large power consumption, the control system is not intelligent, it is inconvenient for users to use, and the improvement of the material processing effect is not obvious. The reasons for the above results are threefold. First, the material is not dispersed when passing through the machine, and the passing distance is short; second, the air outlet angle cannot adapt to various materials; third, the utilization rate of the air duct inside the machine body is low. Summary of the Invention
[0004] The purpose of the utility model is to provide a dual-frequency and dual-stage light material air separator, so that the equipment has a moderate size, can increase the separation and purification rate to more than 95%, and at the same time reduce energy consumption and increase production.
[0005] The purpose of the utility model is realized by the following means:
[0006] A dual-frequency and dual-stage light material air separator includes a housing. An inner cavity is arranged inside the housing. A feed inlet is arranged at the top of the housing, and the feed inlet is communicated with the inner cavity. A discharge outlet is arranged at the bottom of the inner cavity. A dust collection device is arranged on the side of the inner cavity. Two light material air outlets communicated with the dust collection device are arranged on the side wall of the inner cavity. A fan communicated with the inner cavity is arranged on the housing. The fan is two-stage. The first-stage fan corresponds to the feed inlet, and the second-stage fan corresponds to the discharge outlet. The first-stage fan corresponds to the first light material air outlet, and the second-stage fan corresponds to the second light material air outlet. Both the first-stage fan and the second-stage fan are variable-frequency fans, and the frequency of the first-stage fan is greater than the frequency of the second-stage fan. A return air outlet is arranged on the top side of the dust collection device, and the return air outlet is communicated with the air duct of the fan through a return air duct. A spray device is arranged on the top of the dust collection device, and a light material discharge outlet is arranged at the bottom of the dust collection device.
[0007] In the above-mentioned dual-frequency and dual-stage light material air separator, a dispersing roller is further installed in the inner cavity between the first-stage fan and the corresponding light material air outlet.
[0008] In the above-mentioned dual-frequency and dual-stage light material air separator, the light material air outlet is provided with an air duct plate and an adjusting slideway. One end of the air duct plate corresponding to the inner cavity is hinged to the light material air outlet, and one end of the air duct plate corresponding to the dust collection device is fixed to the adjusting slideway by bolts.
[0009] In the above-mentioned dual-frequency and dual-stage light material air separator, the adjusting slideway is an arc-shaped hole frame.
[0010] In the above-mentioned dual-frequency and dual-stage light material air separator, a filter screen is further provided at the air return port.
[0011] In the above-mentioned dual-frequency and dual-stage light material air separator, both the first-stage fan and the second-stage fan are communicated with the inner cavity through air ducts. The air ducts are provided with air inlets communicated with the fans, and air distribution plates are arranged in the air ducts. The air distribution plates divide the air ducts into several sub-air ducts.
[0012] In the above-mentioned dual-frequency and dual-stage light material air separator, the air distribution plates evenly divide the air ducts into several sub-air ducts.
[0013] In the above-mentioned dual-frequency and dual-stage light material air separator, the feeding port is provided with an arc-shaped feeding plate, and the arc top of the arc-shaped feeding plate faces the top of the outer shell.
[0014] In the above-mentioned dual-frequency and dual-stage light material air separator, there are two first-stage fans, and the air outlets of the two first-stage fans both face the corresponding light material air outlets; there are two second-stage fans, and the air outlets of the two second-stage fans both face the corresponding light material air outlets.
[0015] Compared with the prior art, the utility model has the following technical effects:
[0016] The inner cavity of the present utility model is a bent material passage. The material enters the inner cavity corresponding to the first-stage blower that bends inward through the feed inlet, then falls to the curved inner cavity that bends again, and finally reaches the inner cavity corresponding to the second-stage blower. Through the material passage with double bends, the material can be dispersed conveniently and quickly. Moreover, the blower is provided with two different frequencies. The frequency of the first-stage blower is large, and most of the light substances in the corresponding area are blown towards the dust collection device. A small amount of light substances that are not blown out fall to the area corresponding to the second-stage blower and are blown to the dust collection device by the second-stage blower with a slightly lower frequency. After the light substances reach the dust collection device, they fall to the light-substance discharge port under the action of the spraying device and are transported away by the light-substance conveyor belt. The air flow direction inside the equipment is blown out by the first-stage blower and the second-stage blower, passes through the inner cavity, the air duct plate (K), the dust collection device (F), the air return port (G), and then is inhaled into the air duct pipeline (L), thereby forming a circulating working process inside the machine body. The present utility model combines the dust collection device and the air separator into one body, making the equipment of moderate size. Through experiments, the present utility model can increase the separation rate to more than 95%, while reducing energy consumption and increasing output. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic structural diagram of the present utility model.
[0018] Figure 2 is Figure 1 The left view with the air return pipeline removed.
[0019] Figure 3 It is a schematic structural diagram of the air duct of the present utility model.
[0020] Figure 4 It is a schematic structural diagram of the arc-shaped feed plate of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] To make the purpose, 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 in conjunction with the accompanying drawings in the embodiments of the present utility model.
[0022] 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.
[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is 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. Therefore, it should not be construed as a limitation to the present utility model.
[0024] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to", "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 it can be the communication inside 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 situations.
[0025] The following will Figures 1 - 4 Specifically and in detail, the structure and working process of the present utility model will be described.
[0026] As Figures 1 - 2 shown, a dual-frequency and dual-stage light material air classifier includes a housing 1. An inner cavity 2 is provided inside the housing. A feed inlet is provided at the top of the housing, and the feed inlet is communicated with the inner cavity. A discharge port D is provided at the bottom of the inner cavity. A dust collection device F is provided on the side of the inner cavity. Two light material air outlets communicated with the dust collection device are provided on the side wall of the inner cavity. A blower 3 communicated with the inner cavity is provided on the housing. The blower is two-stage. The first-stage blower corresponds to the feed inlet, and the second-stage blower corresponds to the discharge port. The first-stage blower corresponds to the first light material air outlet, and the second-stage blower corresponds to the second light material air outlet. Both the first-stage blower and the second-stage blower are variable-frequency blowers, and the frequency of the first-stage blower is greater than that of the second-stage blower. A return air port G is provided on the top side of the dust collection device, and the return air port is communicated with the air duct of the blower through a return air duct. A spraying device H is provided on the top of the dust collection device, and a light material discharge port is provided at the bottom of the dust collection device.
[0027] In the dual-frequency and dual-stage light material air classifier of the present utility model, a dispersing roller B is further installed in the inner cavity between the first-stage blower and the corresponding light material air outlet.
[0028] For the dual-frequency and dual-stage light material air separator of the present utility model, a duct plate K and an adjustment slideway are provided at the light material air outlet. One end of the duct plate corresponding to the inner cavity is hinged to the light material air outlet, and one end of the duct plate corresponding to the dust collection device is fixed to the adjustment slideway by bolts. The adjustment slideway is an arc-shaped hole frame installed on the side wall of the light material air outlet. A connecting plate with bolt holes is provided on the side of the duct plate corresponding to the arc-shaped hole frame. Bolts pass through the bolt holes on the connecting plate and the arc-shaped hole frame to fix the duct plate to the arc-shaped hole frame.
[0029] For the dual-frequency and dual-stage light material air separator of the present utility model, a filter screen is further provided at the air return port.
[0030] For the dual-frequency and dual-stage light material air separator of the present utility model, both the primary fan and the secondary fan are communicated with the inner cavity through air ducts. As Figure 3 shown, an air inlet communicated with the fan is provided on the air duct, and a wind dividing plate 4 is provided in the air outlet section of the air duct. The dividing plate divides the air duct in the air outlet section into several sub-air ducts 5.
[0031] For the dual-frequency and dual-stage light material air separator of the present utility model, as Figure 3 shown, the wind dividing plate 4 evenly divides the air duct into several sub-air ducts 5.
[0032] For the dual-frequency and dual-stage light material air separator of the present utility model, as Figure 4 shown, an arc-shaped feeding plate is provided at the feeding port, and the arc top of the arc-shaped feeding plate faces the top of the outer shell.
[0033] For the dual-frequency and dual-stage light material air separator of the present utility model, as Figure 2 shown, there are two primary fans, and the air outlets of the two primary fans are both facing the corresponding light material air outlets; there are two secondary fans, and the air outlets of the two secondary fans are both facing the corresponding light material air outlets.
[0034] The working process of the present utility model is as follows:
[0035] Equipment processing material flow: Materials enter from the feeding port A. The dispersing roller can use different roller diameters according to different material characteristics, so as to evenly distribute the materials to achieve the purpose of dispersion; the materials pass through the dispersing roller B to discharge the heavy substances in the materials, and the light substances are provided with air sources by two symmetrically arranged primary fans 2. The light substances are blown towards the dust collection device through the air duct plate K. The air duct plate K can also adjust the angle to change the wind direction to adapt to different materials; the materials after the primary treatment continue to pass through the material folding channel J to reach two symmetrically arranged secondary fans 2 for secondary air separation treatment, further removing the light substances in the materials and improving the separation rate; the processed finished aggregate flows out of the equipment through the discharge port D; the light substances after the primary air separation and secondary air separation treatment in the equipment reach the box body of the dust collection device F after passing through the air duct plate K. Under the action of the spraying device H, the light substances settle downward to reduce the dust hazard. The light substances after settlement fall into the dust collection belt below for convenient collection and treatment. As Figure 1 shown, E is the movement direction of the light substances under the action of wind force; the internal air flow direction of the equipment is blown out by the primary fan and the secondary fan 2, passes through the inner cavity, the air duct plate K, the dust collection device F, and the air return port G, and then is sucked into the air duct pipeline L, so as to form a circulating working process in the machine body.
[0036] The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the overall concept of the present invention, several changes and improvements can still be made, and these should also be regarded as the protection scope of the present invention.
Claims
1. A dual-frequency dual-stage light material air separator, comprising a housing (1), an inner cavity (2) arranged in the housing, a feed inlet arranged at the top of the housing, the feed inlet being connected to the inner cavity, and a discharge port (D) arranged at the bottom of the inner cavity, characterized in that: A dust collecting device (F) is arranged on the side of the inner cavity, and two light material air outlets connected to the dust collecting device are arranged on the side wall of the inner cavity. A fan (3) connected to the inner cavity is arranged on the outer shell, and the fan is two-stage. The first-stage fan corresponds to the feed inlet, and the second-stage fan corresponds to the discharge outlet. The first-stage fan corresponds to the first light material air outlet, and the second-stage fan corresponds to the second light material air outlet. Both the first-stage fan and the second-stage fan are variable frequency fans, and the frequency of the first-stage fan is greater than that of the second-stage fan. A return air port (G) is arranged on the top side of the dust collecting device, and the return air port is connected to the air path duct of the fan through a return air duct. A spray device (H) is arranged on the top of the dust collecting device, and a light material discharge port is arranged at the bottom of the dust collecting device.
2. The dual-frequency dual-stage light material air separator according to claim 1, characterized in that: A breaking roller (B) is also installed in the inner cavity between the first-stage fan and the corresponding light material outlet.
3. The dual-frequency dual-stage light material air separator according to claim 1, characterized in that: The light material air outlet is provided with an air duct plate (K) and an adjusting slide, one end of the air duct plate corresponding to the inner cavity is hinged on the light material air outlet, and one end of the air duct plate corresponding to the dust collecting device is fixed to the adjusting slide by bolts.
4. The dual-frequency dual-stage light material air separator according to claim 3, characterized in that: The adjusting slideway is an arc-shaped hole frame.
5. The dual-frequency dual-stage light material air separator according to claim 1, characterized in that: The return air outlet is also provided with a filter.
6. The dual-frequency dual-stage light material air separator according to claim 1, characterized in that: The first-stage fan and the second-stage fan are both connected to the inner cavity through an air duct. An air inlet connected to the fan is arranged on the air duct. An air dividing plate is arranged in the air duct. The inner dividing plate divides the air duct into a plurality of sub-air ducts.
7. The dual-frequency dual-stage light material air separator according to claim 6, characterized in that: The air dividing plate evenly divides the air duct into a plurality of sub-air ducts.
8. The dual-frequency dual-stage light material air separator according to claim 1, characterized in that: The feed port is provided with an arc-shaped feed plate, and the arc top of the arc-shaped feed plate faces the top of the shell.
9. The dual-frequency dual-stage light material air separator according to claim 1, characterized in that: There are two first-level fans, and the air outlets of the two first-level fans are both facing the corresponding light material air outlet; there are two second-level fans, and the air outlets of the two second-level fans are both facing the corresponding light material air outlet.