An air separator

Abstract

The application discloses a winnowing machine, which comprises a main shell, a winnowing device arranged in the main shell, a feeding device and a feeding device, the main shell is provided with a feeding port and a discharging port; the winnowing device comprises a cyclone dust collector, a dust removal conveying belt and a discharging conveying belt for feeding materials, the materials fall to the dust removal conveying belt and the discharging conveying belt through the feeding port in sequence, and the air suction port of the cyclone dust collector is arranged on one side of the material falling track; the feeding device comprises a material uniformizing plate arranged at the discharging port and a feeding conveying belt, after the materials are fed out of the discharging port, the materials fall to the feeding conveying belt through the material uniformizing plate; the material uniformizing plate is arranged in an inclined downward manner, the material uniformizing plate is provided with a plurality of material falling ports; along the discharging direction of the discharging port, the width of the material falling ports arranged on the material uniformizing plate gradually increases. By adopting the application, the fine impurities in medicinal materials can be removed, and the subsequent manual screening and spreading operation can be simplified.

Description

Technical Field

[0001] This invention relates to the field of medicinal herb processing equipment, and in particular to an air classifier. Background Technology

[0002] Because medicinal materials often contain impurities such as ash, dirt, and fragments during drying or secondary processing, they need to be screened before being used in medicine. If the raw materials are screened manually, the small size and numerous impurities result in a huge volume of material to be screened, which is difficult to remove manually, leading to low efficiency, long processing time, and high labor requirements.

[0003] Moreover, existing air separators are large and occupy a lot of space. The discharge direction of the screened material outlet is generally arranged at a right angle to the conveyor belt that transfers the material, which causes the material to pile up too high and too thick on one side of the conveyor belt. This requires manual leveling for screening, thus reducing screening efficiency. Summary of the Invention

[0004] The technical problem to be solved by the embodiments of the present invention is to provide an air separator that can remove fine impurities from medicinal materials and simplify the flattening operation during subsequent manual screening.

[0005] To solve the above-mentioned technical problems, the present invention provides an air classifier, including a main housing, an air classifier disposed in the main housing, a feeding device for feeding material to the air classifier, and a feeding device for discharging material. The main housing is provided with an inlet connected to the feeding device and an outlet connected to the feeding device.

[0006] The air separation device includes a cyclone dust collector, a dust collection conveyor belt for receiving materials, and a discharge conveyor belt for discharging materials. The materials fall sequentially from the inlet to the dust collection conveyor belt and the discharge conveyor belt. The exhaust port of the cyclone dust collector is located on one side of the material falling trajectory.

[0007] The feeding device includes a material equalization plate and a feeding conveyor belt located at the discharge port. After the material is sent out of the discharge port, it falls onto the feeding conveyor belt after passing through the material equalization plate.

[0008] The material distribution plate is inclined downwards and has multiple material discharge ports.

[0009] Along the discharge direction of the discharge port, the width of the discharge port on the material distribution plate gradually increases.

[0010] As an improvement to the above solution, the material discharge port is provided with a material blocking component for delaying the material from falling. The material blocking component includes a material equalization shaft and material blocking blades disposed on the material equalization shaft. Connecting pieces for mounting the material equalization shaft are provided on both sides of the bottom of the material discharge port of the material equalization plate.

[0011] As an improvement to the above solution, the distance between the top of the material blocking component and the top surface of the material equalization plate is less than 3mm.

[0012] As an improvement to the above solution, the cyclone dust collector is equipped with a closed air valve for discharging waste, and a waste conveyor belt for conveying waste is provided below the closed air valve to receive the waste discharged by the closed air valve.

[0013] As an improvement to the above solution, at least two air separation devices are provided. The material passes through the dust removal conveyor belt of each air separation device in sequence, and a preset height difference is left between two adjacent dust removal conveyor belts so that the exhaust port of the cyclone dust collector can be set on one side of the material falling trajectory.

[0014] As an improvement to the above solution, the feeding conveyor belt is divided into a low-level horizontal transport section, a climbing transport section, and a high-level horizontal transport section located at a preset height for receiving materials. The materials pass through the low-level horizontal transport section, the climbing transport section, and the high-level horizontal transport section in sequence to rise to the height required for manual screening.

[0015] As an improvement to the above solution, a spreading mechanism for spreading materials is provided at the high-level horizontal transport section. The spreading mechanism includes a spreading arm located above the high-level horizontal transport section and a spreading arm support for mounting the spreading arm. The spreading arm is inclined relative to the transport direction of the high-level horizontal transport section.

[0016] As an improvement to the above solution, the bottom of the spreading arm is provided with a plurality of spreading teeth for contacting the material, and the spreading teeth are conical in shape.

[0017] As an improvement to the above solution, the spreading mechanism further includes an adjusting screw, a nut plate installed on the adjusting screw, and a spring. The spreading arm support is provided with a spreading arm pivot for installing the spreading arm and a spring groove for installing the spring. The upper and lower ends of the spring are respectively connected to one end of the spreading arm and the nut plate.

[0018] As an improvement to the above solution, the feeding conveyor belt is provided with multiple baffles at intervals to prevent the material from sliding down.

[0019] Implementing this invention has the following beneficial effects:

[0020] This invention discloses an air separator, including a main housing, an air separator, a feeding device, and a loading device. The main housing is provided with an inlet that connects to the feeding device and an outlet that connects to the loading device.

[0021] The air separation device includes a cyclone dust collector, a dust collection conveyor belt for receiving materials, and a discharge conveyor belt for discharging materials. The materials fall sequentially from the inlet onto the dust collection conveyor belt and the discharge conveyor belt. The exhaust port of the cyclone dust collector is located on one side of the material's falling trajectory, thereby making it easier to remove fine impurities such as dust and debris mixed in the materials during the falling process.

[0022] Furthermore, the feeding device includes a material leveling plate and a feeding conveyor belt located at the discharge port. After the material is sent out of the discharge port, it falls onto the feeding conveyor belt through the material leveling plate. The material leveling plate is inclined downward and has multiple material drop ports. Along the discharge direction of the discharge port, the width of the material drop ports on the material leveling plate gradually increases. The distribution of the material drop ports and their gradually increasing width can reduce the uneven distribution of the material on the feeding conveyor belt after the material falls onto it. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the feeding device and air separation device of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the air separation device and the feeding device of the present invention;

[0025] Figure 3 This is a schematic diagram of the material homogenizing plate of the present invention;

[0026] Figure 4 This is a schematic diagram of the unfolding mechanism of the present invention. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] See Figure 1 , 2This invention provides an air classifier, including a main housing 1, an air classifier device disposed within the main housing 1, a feeding device 2 for feeding material to the air classifier device, and a feeding device 3 for discharging material. The main housing 1 is provided with an inlet 11 that connects to the feeding device 2 and an outlet 12 that connects to the feeding device 3. The air classifier device includes a cyclone dust collector 4, a dust removal conveyor belt 5 for receiving material, and an outlet conveyor belt 6 for discharging material. Material falls sequentially from the inlet 11 onto the dust removal conveyor belt 5 and the outlet conveyor belt 6. The exhaust port 41 of the cyclone dust collector 4 is located on one side of the material falling trajectory.

[0029] The feeding device 3 includes a material leveling plate 31 and a feeding conveyor belt 32 disposed at the discharge port 12. After the material is sent out of the discharge port 12, it falls onto the feeding conveyor belt 32 after passing through the material leveling plate 31. The material leveling plate 31 is inclined downward and has multiple material drop ports 311. Along the discharge direction of the discharge port 12, the width of the material drop ports 311 on the material leveling plate 31 gradually increases. The orientation of the discharge port 12 is perpendicular to the transport direction of the feeding conveyor belt 32.

[0030] Specifically, see Figure 3 To further improve the uniformity of material distribution on the feeding conveyor belt 32, a material-blocking component is provided at the discharge port 311 to delay material drop. This component includes a material-leveling rotating shaft 312 and material-blocking blades 313 mounted on the rotating shaft 312. Connecting pieces 314 for mounting the rotating shaft 312 are provided on both sides of the bottom of the discharge port 311 of the material-leveling plate 31. The material-blocking blades 313 are designed to address situations where, when the material output is small and slow, most of the material falls from the first discharge port 311.

[0031] Furthermore, in order to avoid the material blocking blade 313 excessively reducing the sliding speed of the material on the uniform material plate 31, and without affecting the function of the material blocking component, the distance between the top of the material blocking component and the top surface of the uniform material plate 31 is less than 3mm.

[0032] The cyclone dust collector 4 is equipped with a closed-loop valve 42 for discharging waste material. Below the closed-loop valve 42 is a waste conveyor belt 43 for receiving the waste material discharged from the closed-loop valve 42. This facilitates centralized waste treatment. It should be noted that both the cyclone dust collector 4 and the closed-loop valve 42 are existing technologies, and their structural principles will not be described in detail here.

[0033] Furthermore, in order to better remove impurities from the material, at least two air separation devices are provided. The material passes through the dust removal conveyor belt 5 of each air separation device in sequence, and a preset height difference is left between two adjacent dust removal conveyor belts 5 so that the exhaust port 41 of the cyclone dust collector 4 can be set on one side of the material falling trajectory.

[0034] Because the material's height continuously decreases during the impurity removal process, after being processed by the air separator, the material's height is generally low, often much lower than the height of the manual screening workbench. Therefore, the material needs to be transported back to the required height and work position. The feeding conveyor belt 32 is divided into a low-level horizontal transport section 321, a climbing transport section 322, and a high-level horizontal transport section 323 located at a preset height. The material passes through the low-level horizontal transport section 321, the climbing transport section 322, and the high-level horizontal transport section 323 sequentially to reach the height required for manual screening. Correspondingly, the climbing transport section 322 is inclined upwards. Multiple baffles 324 are spaced apart on the feeding conveyor belt 32 to prevent the material from sliding down. This allows the feeding conveyor belt 32 to carry the material upwards. Preferably, the feeding device 2 has the same structure as the feeding conveyor belt 32 to deliver the material from the lower position to the higher feeding port.

[0035] See Figure 4 To better spread the material and minimize manual operation during screening, a spreading mechanism 6 is provided at the elevated horizontal transport section 323. The spreading mechanism 6 includes a spreading arm 61 located above the elevated horizontal transport section 323 and a spreading arm support 62 for mounting the spreading arm 61. The spreading arm 61 is inclined relative to the transport direction of the elevated horizontal transport section 323. Therefore, when the material passes through the spreading arm 61, it is flattened, thus achieving the desired spreading effect.

[0036] To allow for thinner spreading of stacked material, the bottom of the spreading arm 61 is provided with a plurality of spreading teeth 611 for contacting the material, the spreading teeth 611 being conical in shape. Preferably, the spreading teeth 611 are made of an elastic or soft material, such as rubber, soft rubber, or paper.

[0037] The spreading mechanism also includes an adjusting screw 63, a nut plate 64 mounted on the adjusting screw 63, and a spring 65. The spreading arm support 62 is provided with a spreading arm pivot 621 for mounting the spreading arm 61 and a spring groove 622 for mounting the spring 65. The upper and lower ends of the spring 65 are respectively connected to one end of the spreading arm 61 and the nut plate 64. When the spreading arm 61 encounters excessive resistance during the process of contacting and spreading the material, i.e., when encountering thick material, the spring 65 will twist and swing. When the material is spread, it will rebound. Therefore, in actual operation, the spreading arm 61 will basically be in a swinging state, thereby better spreading the material.

[0038] On the other hand, for materials of different sizes, the average resistance to the spreading arm 61 will vary greatly. Therefore, in order to avoid the spreading arm 61 being difficult to swing, the adjusting screw 63 can be turned so that the nut plate 64 can move up and down along the adjusting screw 63, thereby changing the compression of the spring 65 and thus affecting the initial force required to push the spreading arm 61.

[0039] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An air separator, characterized in that The main shell, the air separation device arranged in the main shell, the feeding device for feeding the air separation device, and the feeding device for feeding the air separation device, the main shell is provided with the feeding port and the discharge port of the feeding device, and the discharge port of the feeding device; Wherein, the air separation device includes a cyclone dust collector, a dust removal transport belt for receiving material, and a discharge transport belt for feeding material, the material falls to the dust removal transport belt and the discharge transport belt through the feeding port, and the air inlet of the cyclone dust collector is arranged on one side of the material falling track; The feeding device includes a material distribution plate arranged at the discharge port and a feeding transport belt, after the material is discharged from the discharge port, it falls to the feeding transport belt through the material distribution plate; The material distribution plate is arranged in an inclined downward manner, and the material distribution plate is provided with a plurality of material falling ports; Along the discharge direction of the discharge port, the width of the material falling port arranged on the material distribution plate gradually increases; The material falling port is provided with a material blocking piece for delaying the falling of the material, the material blocking piece includes a material distribution shaft and a material blocking blade arranged on the material distribution shaft, and the both sides of the bottom of the material falling port of the material distribution plate are provided with connecting pieces for mounting the material distribution shaft; The air separation device is provided with at least two, and the material sequentially passes through the dust removal transport belts of each air separation device, and a predetermined height difference is left between the adjacent two dust removal transport belts, so that the air inlet of the cyclone dust collector is arranged on one side of the material falling track; The feeding transport belt is divided into a low-position flat transport section for receiving material, a climbing material transport section, and a high-position flat transport section at a predetermined height position, and the material sequentially passes through the low-position flat transport section, the climbing material transport section, and the high-position flat transport section to rise to the height required by manual screening; The high-position flat transport section is provided with a spreading mechanism for spreading the material, the spreading mechanism includes a spreading arm above the high-position flat transport section and a spreading arm support for mounting the spreading arm, and the spreading arm is arranged in an inclined manner relative to the transport direction of the high-position flat transport section; The spreading mechanism further includes an adjusting screw, a nut piece mounted on the adjusting screw, and a spring, the spreading arm support is provided with a spreading arm shaft for mounting the spreading arm and a spring groove for mounting the spring, and the upper and lower ends of the spring are connected with one end of the spreading arm and the nut piece respectively.

2. The aspirator of claim 1, wherein The distance between the top end of the material blocking piece and the top surface of the material distribution plate is less than 3mm.

3. The aspirator of claim 2, wherein The cyclone dust collector is provided with a closed air valve for discharging waste, and the lower part of the closed air valve is provided with a waste transport belt for feeding waste to receive the waste discharged by the closed air valve.

4. The aspirator of claim 1, wherein The bottom of the spreading arm is provided with a plurality of spreading teeth for contacting the material, and the spreading teeth are in a conical shape.

5. The aspirator of claim 1 wherein, A plurality of material blocking strips are arranged on the feeding transport belt to prevent the material from sliding downward.

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