Positive and negative pressure air separator

Abstract

The utility model discloses a positive and negative pressure formula winnowing machine mainly applied to the winnowing device technical field contains vibration feed bed, feeder, winnowing machine, dust removal subassembly, the feeder is obliquely arranged, the feeder tail has vibration feed bed, the vibration feed bed below has winnowing machine, the winnowing machine is by casing, material bin, positive pressure fan, material adjusts subassembly and is composed, the casing is divided into a plurality of material bins, the material bin below has the discharge gate, there is material adjusting subassembly between the material bin, the casing front end has positive pressure fan, the casing tail has dust removal subassembly, the vibration feed bed tail is connected with winnowing machine material import. Application the utility model discloses a positive and negative pressure formula winnowing machine, and the floor area is smaller, and the use is flexible and various, and the adaptability is strong, and the even feeding, and the air passage in winnowing machine is smooth, and the dust is smaller in the use process, and the pollution is smaller, and the winnowing efficiency and precision are higher, and have higher popularization value.

Description

Technical Field

[0001] This utility model relates to the field of air classifier technology, specifically to a positive and negative pressure air classifier. Background Technology

[0002] An air separator is a mechanical device that separates or crushes materials using airflow. Its core principle is to separate materials based on their density, particle size, or air resistance characteristics.

[0003] Application No. 2014203179150 discloses an air classifier, aiming to solve the shortcomings of current air classifiers, such as low efficiency in removing impurities from materials, incomplete separation of impurities and materials during use, and poor air classification effect. This utility model includes a feeding mechanism and an air classification mechanism. The feeding mechanism includes a conveyor belt with a feed hopper and a discharge hopper at both ends. The air classification mechanism includes a ventilation pipe and a blower. The upper end of the ventilation pipe is connected to an upper air duct, and the lower end of the upper air duct is connected to a lower air duct. Both the upper and lower air ducts have numerous pressure-reducing holes densely distributed on their outer walls. The outer wall of the ventilation pipe has a feed inlet and a discharge outlet. The discharge hopper is inclined downwards and its lower end is connected to the edge of the feed inlet. Below the feed inlet in the ventilation pipe, a downwardly inclined air distribution plate is provided. The air distribution plate includes several spaced-apart connecting rods, and its lower end is connected to the lower edge of the discharge outlet. A baffle plate parallel to the conveyor belt is provided above the conveyor belt near its upper end.

[0004] Although the above technical solutions can achieve material separation, they still have the following drawbacks: 1. The feeding is not uniform. The material thickness is uneven due to the conveyor belt feeding, which reduces the accuracy of air separation; 2. The footprint is large. In the case of limited factory space, it is difficult to arrange the location of the air separator; 3. The dust pollution is large, which can easily pollute the production line or production environment. Utility Model Content

[0005] This utility model proposes a positive and negative pressure air classifier, which solves the problems of uneven feeding, large footprint, and serious dust pollution in existing air classifiers.

[0006] The technical solution of this utility model is as follows: a positive and negative pressure air classifier, including a vibrating feeder bed, a feeder, an air classifier, and a dust removal component. The feeder is inclined, and the vibrating feeder bed is located at the end of the feeder. The air classifier is located below the vibrating feeder bed. The air classifier consists of a shell, a material bin, a positive pressure fan, and a material adjustment component. The shell is divided into several material bins, and there is a discharge port at the bottom of each material bin. The material adjustment component is located between the material bins. The positive pressure fan is located at the front end of the shell, and the dust removal component is located at the end of the shell. The end of the vibrating feeder bed is connected to the material inlet of the air classifier.

[0007] Preferably, the feeder has bearing brackets on both sides, bearings inside the bearing brackets, a rotating shaft installed inside the bearings, a combing plate on the rotating shaft, an oblong hole in the inner wall of the bearing brackets, a screw connected to the lower end of the bearing, an adjusting handwheel at the end of the screw, and the rotating shaft is driven by an electric motor and a gearbox.

[0008] Preferably, the dust removal assembly consists of a motor, a cyclone dust collector, and an air filter. The cyclone dust collector has a motor on top, its air inlet is connected to the end of the housing of the air separator, its air outlet is connected to the air filter, and its dust outlet is connected to a dust collection bin.

[0009] Preferably, the material adjustment assembly consists of an adjustment plate bracket, an adjustment rocker, a material adjustment plate, and a locking knob. The bottom of the material adjustment plate is rotatably connected to the housing, and an adjustment rocker is fixedly connected to the rotating shaft. The adjustment plate bracket is fixedly connected to the outer wall of the housing, and a locking knob is fixedly connected to the adjustment rocker.

[0010] Preferably, the housing has a sampling port.

[0011] Preferably, the housing has an observation window.

[0012] Preferably, the housing is made of stainless steel sheet.

[0013] Preferably, the control cabinet controls the operation of the vibrating feeder, feeder, air classifier, and dust removal components.

[0014] The principle of this invention: To solve the problem of uneven feeding, this invention uses a combination of a feeder and a vibrating feeder bed for feeding. The feeder has a combing plate in the middle, driven by a motor to rotate, controlling the thickness of the material entering the vibrating feeder bed. After entering the vibrating feeder bed, the material is further distributed and evenly distributed under the action of vibration before entering the material inlet of the air classifier. At this point, the material uniformity is better, allowing for fast and high-quality air classification. Simultaneously, the vibrating feeder bed decomposes impurities encased or embedded in the material in advance, improving air classification efficiency and accuracy. This invention also addresses the problem of existing air classifiers having a large footprint. Existing air classifiers have their positive pressure fan, inlet, and outlet located at the rear. If the air classifier needs to be connected to other equipment, a separate transmission device needs to be added at the outlet, increasing the footprint. To reduce floor space and operating costs, this invention places the positive pressure fan, material inlet, and material silo at the front end of the air separator. Even with limited space at the user's site, the air separator can be placed horizontally or vertically without additional transmission devices. This allows for direct connection to other equipment, further reducing floor space and operating costs. To address the severe dust pollution problem in existing air separators, this invention connects a dust removal component at the end of the air separator. This component consists of a motor, a cyclone dust collector, and an air filter. The motor drives the negative pressure fan of the cyclone dust collector, which not only exhausts the positive pressure air inside the air separator but also prevents the positive pressure fan from creating gas vortices within the air separator, thus ensuring its normal operation. Larger particles fall into the dust collection bin after passing through the cyclone dust collector, while smaller particles enter the filter element. The discharged exhaust gas contains fewer particles, ensuring a clean working environment and reducing dust pollution.

[0015] The beneficial effects of this utility model are as follows: A positive and negative pressure air classifier occupies a small area, is flexible and versatile in use, has strong adaptability, provides uniform feeding, has smooth air passages inside the air classifier, generates less dust and pollution during use, and has high air classification efficiency and accuracy, thus possessing high promotional value. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is the front view of the present utility model;

[0018] Figure 3 This is a right view of the present invention;

[0019] Figure 4 This is a top view of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of this utility model;

[0021] Figure 6 for Figure 5 Enlarged view of part A in the middle;

[0022] Figure 7 for Figure 5 Enlarged view of part B in the middle;

[0023] In the diagram, 100-feeder, 101-carding plate, 102-bearing bracket, 103-screw, 104-adjusting handwheel, 200-vibrating feeder, 300-air classifier, 301-shell, 302-material bin, 303-positive pressure fan, 304-material adjustment assembly, 3041-adjusting plate bracket, 3042-adjusting rocker arm, 3043-material adjustment plate, 3044-locking knob, 400-dust removal assembly. Detailed Implementation

[0024] The specific implementation method of this utility model is as follows: Figures 1-7 As shown, a positive and negative pressure air classifier includes a vibrating feeder bed 200, a feeder 100, an air classifier 300, and a dust removal component 400. The feeder 100 is inclined, and the vibrating feeder bed 200 is located at the end of the feeder 100. The air classifier 300 is located below the vibrating feeder bed 200. The air classifier 300 is composed of a shell 301, a material bin 302, a positive pressure fan 303, and a material adjustment component 304. The shell 301 is divided into several material bins 302. There is a discharge port at the bottom of each material bin 302. The material adjustment component 304 is located between the material bins 302. The positive pressure fan 303 is located at the front end of the shell 301, and the dust removal component 400 is located at the end of the shell 301. The end of the vibrating feeder bed 200 is connected to the material inlet of the air classifier 300. In this embodiment, the material is further dispersed by the vibrating feeder bed 200, which improves the efficiency and accuracy of air separation. The material bin 302 is divided into several units, and users can separate various target materials and impurities according to actual needs. This utility model can be used for the separation of light and airy impurities contained in agricultural products such as tea, fresh flowers, nuts, walnuts, tobacco leaves, peppers, and chili peppers.

[0025] Specifically, such as Figure 1 , Figure 2 , Figure 7As shown, the feeder 100 has bearing supports 102 on both sides, bearings inside the bearing supports 102, and rotating shafts installed inside the bearings. The rotating shafts have carding blades 101 on them. The inner wall of the bearing supports 102 has oblong holes. A screw 103 is connected to the lower end of the bearings, and an adjusting handwheel 104 is located at the end of the screw 103. The rotating shaft is driven by a motor and a gearbox. In this embodiment, the carding blades 101 flatten the material, ensuring that the material enters the material inlet of the air classifier 300 with a uniform thickness. Furthermore, to adapt to different materials, the height of the carding blades 101 and the bottom of the feeder 100 is adjustable. Simply rotating the adjusting handwheel 104 raises or lowers the screw 103, causing the bearings to rise or fall, thus adjusting the height to accommodate different materials and improving the adaptability of this invention.

[0026] Specifically, such as Figure 1 , Figure 2 As shown, the dust removal assembly 400 consists of a motor, a cyclone dust collector, and an air filter. The motor is located on top of the cyclone dust collector. The air inlet of the cyclone dust collector is connected to the end of the housing 301 of the air classifier 300. The air outlet of the cyclone dust collector is connected to the air filter, and a dust collection bin is connected to the dust outlet of the cyclone dust collector. In this embodiment, dust is filtered by the cyclone dust collector and the air filter, reducing the dust generated during the operation of the air classifier 300.

[0027] Specifically, such as Figure 6 As shown, the material adjustment assembly 304 consists of an adjustment plate bracket 3041, an adjustment rocker arm 3042, a material adjustment plate 3043, and a locking knob 3044. The bottom of the material adjustment plate 3043 is rotatably connected to the housing 301, and the adjustment rocker arm 3042 is fixedly connected to the rotating shaft. The adjustment plate bracket 3041 is fixedly connected to the outer wall of the housing 301, and the locking knob 3044 is fixedly connected to the adjustment rocker arm 3042. In this embodiment, by rotating the material adjustment plate 3043 back and forth, the position of the material falling under the action of gravity and horizontal wind force is controlled, thereby improving the sorting accuracy.

[0028] Specifically, such as Figure 1 As shown, the housing 301 has a sampling port. In this embodiment, operators can check the air-separated samples through the sampling port, adjust the air-separation parameters in a timely manner, and improve the air-separation accuracy.

[0029] Specifically, such as Figure 1 As shown, the housing 301 has an observation window. In this embodiment, the operator can observe the air classifier's operating status through the observation window, adjust the air classifier parameters in a timely manner, and ensure the stable and reliable operation of the air classifier 300.

[0030] Specifically, the housing 301 is made of stainless steel sheet. In this embodiment, the stainless steel housing 301 is corrosion-resistant and has a long service life.

[0031] Specifically, such as Figure 5 As shown, the control cabinet controls the operation of the vibrating feeder 200, feeder 100, air classifier 300, and dust removal assembly 400. In this embodiment, the control cabinet controls the operating parameters of each motor in the vibrating feeder 200, feeder 100, air classifier 300, and dust removal assembly 400 to adapt to different material air separation strategies, thereby improving the adaptability, air separation accuracy, and efficiency of this invention.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A positive and negative pressure air classifier, comprising a vibrating feed bed (200), characterized in that: It also includes a feeder (100), an air separator (300), and a dust removal component (400). The feeder (100) is inclined and has a vibrating feeder bed (200) at its end. The air separator (300) is located below the vibrating feeder bed (200). The air separator (300) consists of a housing (301), a material bin (302), a positive pressure fan (303), and a material adjustment component (304). The housing (301) is divided into several material bins (302). There is a discharge port at the bottom of each material bin (302). There is a material adjustment component (304) between each material bin (302). There is a positive pressure fan (303) at the front end of the housing (301). There is a dust removal component (400) at the end of the housing (301). The end of the vibrating feeder bed (200) is connected to the material inlet of the air separator (300).

2. The positive and negative pressure air separator according to claim 1, characterized in that: The feeder (100) has bearing brackets (102) on both sides, bearings inside the bearing brackets (102), a rotating shaft installed inside the bearings, a combing plate (101) on the rotating shaft, a waist-shaped hole on the inner wall of the bearing brackets (102), a screw (103) connected to the lower end of the bearing, an adjusting handwheel (104) at the end of the screw (103), and the rotating shaft is driven by a motor and a gearbox.

3. The positive and negative pressure air separator according to claim 1, characterized in that: The dust removal assembly (400) consists of a motor, a cyclone dust collector, and an air filter. The cyclone dust collector has a motor on top, the air inlet of the cyclone dust collector is connected to the end of the housing (301) of the air separator (300), the air outlet of the cyclone dust collector is connected to the air filter, and the dust outlet of the cyclone dust collector is connected to a dust collection bucket.

4. A positive and negative pressure air separator according to claim 1, characterized in that: The material adjustment assembly (304) consists of an adjustment plate bracket (3041), an adjustment rocker (3042), a material adjustment plate (3043), and a locking knob (3044). The bottom of the material adjustment plate (3043) is rotatably connected to the housing (301), and the adjustment rocker (3042) is fixedly connected to the rotating shaft. The adjustment plate bracket (3041) is fixedly connected to the outer wall of the housing (301), and the locking knob (3044) is fixedly connected to the adjustment rocker (3042).

5. A positive and negative pressure air separator according to claim 1, characterized in that: The housing (301) has a sampling port.

6. A positive and negative pressure air separator according to claim 1, characterized in that: The housing (301) has an observation window.

7. A positive and negative pressure air separator according to claim 1, characterized in that: The housing (301) is made of stainless steel sheet.

8. A positive and negative pressure air separator according to claim 1, characterized in that: It also includes a control cabinet that controls the operation of the vibrating feeder (200), feeder (100), air classifier (300), and dust removal assembly (400).

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