Winnowing machine
The wind separator addresses uneven wind force issues by using a negative pressure mechanism and adjustable partitions to stabilize airflow, enhancing the separation and discharge of debris and dust in tea processing.
Patent Information
- Application Number
- CN202420489403.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-03-14
AI Technical Summary
Conventional air separators for tea processing suffer from uneven wind force distribution, leading to inefficient separation of debris and dust, with materials being blown back and debris not being effectively discharged.
A wind separator equipped with a negative pressure mechanism, a vibrating bed, baffles, and adjustable partitions to stabilize wind flow and separate materials into light and heavy layers, combined with a blower and axial flow fan for uniform air distribution and debris removal.
Stabilizes wind flow for improved screening efficiency, prevents material entanglement, and enhances the separation of debris and dust, ensuring effective discharge of impurities.
Smart Images
Figure CN222174907U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of crop screening equipment, in particular to a wind separator. Background Art
[0002] With the improvement of people's living standards, the output and sales of tea have increased greatly. However, due to the extensive production process of tea, sand, soil, grains, nails and other debris, as well as tea fragments and tea dust will be mixed into the tea during the processing. In the tea refining process, the dry raw tea leaves need to be graded to remove dust and impurities.
[0003] For example, the Chinese utility model patent with application number "202223358123.1" discloses a multi-stage air separator for processing white tea. This application is the same as a conventional air separator, and directly uses a blower to blow the material to screen the material. In this way, the wind force in the front section will be stronger, but in the rear section of the cavity, the wind force will be insufficient, and the box at the rear end cannot discharge the wind in time, but there will be a problem of return air. The strong wind force in the front section may blow the material to the rear section and fall directly into the funnel, and the debris cannot be blown away. Utility Model Content
[0004] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.
[0005] A winnowing machine comprises a supporting frame, a screening chamber is arranged on the supporting frame, a feeding port is arranged at one end of the screening chamber, a plurality of receiving funnels are arranged at the bottom of the screening chamber, a blowing port is arranged at the lower part of the feeding port, a blower is arranged at the outer end of the blowing port, and a negative pressure mechanism for drawing negative pressure into the screening chamber is arranged at the other end of the screening chamber.
[0006] Preferably, a vibrating bed for conveying materials is provided at the feed inlet.
[0007] Preferably, the negative pressure mechanism is an axial flow fan.
[0008] Preferably, a baffle is provided at the air outlet, and a plurality of grid-shaped air inlet holes are formed on the baffle.
[0009] Preferably, a partition is provided between adjacent material receiving funnels, a rotating shaft is provided at the lower part of the partition, both ends of the rotating shaft are rotatably connected to the support frame, and both ends pass through the support frame, and a hand-cranked wheel is provided thereon.
[0010] Preferably, a gate is provided at the bottom of the receiving hopper.
[0011] Compared with the prior art, the utility model has the following beneficial effects: the utility model is a winnowing machine, in which a negative pressure extraction device is arranged at the end of the screening box, which can extract negative pressure into the screening chamber to make the wind delivered by the blower more stable, and the wind remains stable after reaching the rear section, thereby improving the screening effect; at the same time, the negative pressure extraction device can also extract the internal dust to prevent direct discharge.
[0012] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0014] Figure 1 It is a structural schematic diagram of the utility model.
[0015] Figure 2 It is another structural schematic diagram of the utility model.
[0016] Figure 3 It is a structural schematic diagram of the partition board in the utility model.
[0017] Figure 4 It is a structural schematic diagram of the blower in the utility model.
[0018] In the figure: 1. support frame; 2. screening chamber; 3. feed port; 4. receiving funnel; 5. air outlet; 6. blower; 7. negative pressure mechanism; 8. vibrating bed; 9. baffle; 10. air inlet; 11. partition; 12. rotating shaft; 13. hand wheel; 14. gate. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0020] See also Figures 1 to 4In the embodiment of the utility model, a wind separator includes a support frame 1, a screening chamber 2 is arranged on the support frame 1, a feed port 3 is arranged at one end of the screening chamber 2, a plurality of receiving funnels 4 are arranged at the bottom of the screening chamber 2, a blowing port 5 is arranged at the lower part of the feed port 3, a blower 6 is arranged at the outer end of the blowing port 5, and a negative pressure mechanism 7 for extracting negative pressure from the screening chamber 2 is arranged at the other end of the screening chamber 2; in the past, the wind separator generally directly uses the blower 6 to blow the material to screen the material, so that the wind force in the front section will be stronger and reach the cavity. In the rear section, the wind force is insufficient, and the box at the rear end cannot discharge the wind in time, but there will be a problem of return air. The materials with strong wind force in the front section may be blown to the rear section and directly fall into the funnel, and the debris cannot be blown away. The utility model provides a negative pressure extraction device at the end of the screening box, which can extract negative pressure from the screening chamber 2 to make the wind delivered by the blower 6 more stable, and the wind is still stable after reaching the rear section, thereby improving the screening effect. At the same time, the negative pressure extraction device can also extract the internal dust to prevent direct discharge.
[0021] Furthermore, a vibrating bed 8 for conveying materials is provided at the feed port 3. By providing the vibrating bed 8, some debris can be pre-screened, the air-selected materials can be separated into light and heavy layers to avoid material entanglement, and dust adhering to the materials can be shaken off, thereby improving the air selection and grading effect and the screening effect.
[0022] Furthermore, the negative pressure mechanism 7 is an axial flow fan. In addition, other fans may be used to replace the axial flow fan.
[0023] Furthermore, a baffle plate 9 is provided at the air outlet 5, and a plurality of grid-shaped air inlet holes 10 are formed on the baffle plate 9. By providing the grid-shaped air inlet holes 10, the air supply can be made more uniform and stable.
[0024] Furthermore, a partition 11 is provided between the adjacent material receiving funnels 4, and a rotating shaft 12 is provided at the lower part of the partition 11. Both ends of the rotating shaft 12 are rotatably connected to the support frame 1, and both ends pass through the support frame 1. A hand-cranked wheel 13 is provided thereon. By rotating the hand-cranked wheel 13, the angle of the partition 11 can be adjusted as needed, and after adjustment, it is fixed by a fixing device (not indicated in this application). The fixing device can be a locking bolt, and the hand-cranked wheel 13 is directly locked by the locking bolt.
[0025] Furthermore, a gate 14 is provided at the bottom of the receiving funnel 4. By providing the gate 14, when screening is performed, the gate 14 is partially closed, which can facilitate the axial flow fan to draw negative pressure.
[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.
Claims
1. A winnowing machine, characterized in that: It includes a support frame, a screening chamber is provided on the support frame, a feed port is provided at one end of the screening chamber, a plurality of material receiving funnels are provided at the bottom of the screening chamber, a blowing port is provided at the lower part of the feed port, a blower is provided at the outer end of the blowing port, and a negative pressure mechanism for extracting negative pressure in the screening chamber is provided at the other end of the screening chamber.
2. A winnowing machine according to claim 1, characterized in that: A vibrating bed for conveying materials is provided at the feed inlet.
3. A winnowing machine according to claim 1, characterized in that: The negative pressure mechanism is an axial flow fan.
4. A winnowing machine according to claim 1, characterized in that: A baffle is provided at the air outlet, and a plurality of grid-shaped air inlet holes are formed on the baffle.
5. A winnowing machine according to claim 1, characterized in that: A partition is arranged between adjacent material receiving funnels, a rotating shaft is arranged at the lower part of the partition, two ends of the rotating shaft are rotatably connected with the supporting frame, and both ends pass through the supporting frame, and a hand-cranked wheel is arranged thereon.
6. A winnowing machine according to claim 1, characterized in that: A gate is provided at the bottom of the receiving hopper.