An onion cleaning system
By introducing a perforated air inlet pipe and a brush roller into the onion cleaning system, combined with a chain plate elevator and a peeling plate, the problems of high water consumption and difficulty in removing impurities in existing onion cleaning technologies have been solved, achieving efficient cleaning and water-saving effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIUQUAN QINGYUAN VEGETABLE IND CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-08-04
AI Technical Summary
Existing onion washing equipment requires a large amount of water and has difficulty effectively removing scum and onion skins from the surface of the washing water, affecting the washing effect.
An onion cleaning system was designed, comprising a perforated air inlet pipe, a partition, a brush roller, a chain conveyor, and a peeling plate. The system uses air bubbles to carry impurities from the surface of the cleaning water into the interlayer, where the brush roller and the peeling plate collide to remove the onion skins, and then the system is further cleaned by a spray nozzle.
While saving water, it effectively removes foam and onion skins, improves the cleaning effect of onions, and ensures the cleanliness of the washing water.
Smart Images

Figure CN224584134U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of onion processing technology, specifically an onion cleaning system. Background Technology
[0002] Onions are biennial herbaceous plants belonging to the genus Allium in the family Amaryllidaceae. Their roots are fibrous and fibrous, and their stems are short and conical. The leaves consist of a leaf blade and a leaf sheath; the leaf blade is dark green and cylindrical, while the base of the leaf sheath swells to form a bulb during early growth. Each plant produces a bulb that is almost spherical, and its color can range from purplish-red, pink, coppery-yellow, pale yellow, or white. Onions are highly nutritious and also have cholesterol-lowering, blood vessel-softening, stomach-benefiting, and cold-resistant / antibacterial effects. Onions can also be used as a condiment. With societal development and increased demand, to extend the shelf life of onions and reduce transportation difficulties, they are usually dehydrated. Dried onions can be stored indefinitely. Preservation allows for readily available, ready-to-use ingredients that are lighter, smaller, and more convenient to store and transport. During the dehydration process, onions need to be washed first. Due to the characteristics of onion's growing environment and its tendency to peel easily, the washing water often becomes cloudy quickly, with a large amount of foam and onion skins and other debris on the surface. Current washing equipment requires a large amount of water to ensure its cleanliness. Even changing the washing water cannot effectively remove the debris from the surface. Furthermore, some onions cannot have their outer skin completely removed during washing, affecting the washing effect. Utility Model Content
[0003] To address the above technical problems, this utility model provides an onion cleaning system.
[0004] To solve the above-mentioned technical problems, the present invention provides an onion cleaning system, comprising a cleaning tank, which is divided into a first cleaning tank and a second cleaning tank. Two partitions are fixedly connected inside the cleaning tank, and an air inlet pipe is provided between the partitions. The air inlet pipe passes through the lower part of one side of the cleaning tank and is fixedly connected thereto. Several brush rollers are also rotatably connected between the partitions. The shafts of the brush rollers pass through the partitions and the cleaning tank and are connected to a motor for transmission. A chain plate elevator is inclinedly arranged above the other side of the cleaning tank, and one end of the chain plate elevator extends into the cleaning tank. A feed hopper is arranged above one side of the first cleaning tank. A peeling plate is fixedly connected to the top of one side of the second cleaning tank by a connecting rod. The peeling plate is inclined and the lower end faces into the second cleaning tank.
[0005] Furthermore, the spacing between the partitions is greater than the width of the chain plate of the chain plate elevator.
[0006] Furthermore, a spray pipe is installed above the chain plate elevator, and a spray head is fixedly connected below the spray pipe.
[0007] Furthermore, the portion of the air intake pipe located within the cleaning tank has perforations in its wall.
[0008] Furthermore, the chain plate of the chain plate elevator has holes.
[0009] Furthermore, a cleaning port is provided at the bottom of one side of the cleaning tank.
[0010] This utility model has the following advantages compared with the prior art:
[0011] 1. This utility model, by setting a perforated air inlet pipe at the bottom of the cleaning tank and setting a baffle inside the cleaning tank, allows the air bubbles released through the air inlet pipe to move the surface of the cleaning water to both sides during the cleaning process, thereby bringing the foam and other impurities on the surface of the cleaning water into the gap between the baffle and the cleaning tank. This ensures that the cleaning water is clean to a certain extent while saving water consumption.
[0012] 2. This utility model has a peeling plate installed between the washing tanks. When the pre-washed onions fall from the chain conveyor and collide with the peeling plate, the outer skin of the onions is further removed, thus improving the washing effect of the onions.
[0013] 3. The air bubbles released from the air intake pipe drive the movement of the water, which in turn causes the onions to tumble in the washing tank, increasing the cleaning effect of the onions; the brush roller can gradually transport the onions from right to left, avoiding the accumulation of onions, and at the same time, the rotating brush roller also cleans the onions. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model.
[0015] Figure 2 This is a right view of the cleaning tank structure.
[0016] In the diagram: 1. First cleaning tank, 2. Second cleaning tank, 3. Chain plate elevator, 4. Air inlet pipe, 5. Spray pipe, 6. Spray head, 7. Feed hopper, 8. Peeling plate, 9. Partition plate, 10. Brush roller, 11. Cleaning port, 12. Motor. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings.
[0018] like Figures 1 to 2The onion cleaning system shown includes a cleaning tank, which is divided into a first cleaning tank 1 and a second cleaning tank 2. Two partitions 9 are fixedly connected inside the cleaning tank. An air inlet pipe 4 is provided between the partitions 9. The air inlet pipe 4 passes through the lower part of one side of the cleaning tank and is fixedly connected thereto. Several brush rollers 10 are also rotatably connected between the partitions 9. The shaft of the brush roller 10 passes through the partitions 9 and the cleaning tank and is driven by a motor 12. A chain plate elevator 3 is inclinedly arranged above the other side of the cleaning tank. One end of the chain plate elevator 3 extends into the cleaning tank. A feed hopper 7 is arranged above one side of the first cleaning tank 1. A peeling plate 8 is fixedly connected to the top of one side of the second cleaning tank 2 by a connecting rod. The peeling plate 8 is inclined and the lower end faces into the second cleaning tank 2.
[0019] To ensure the efficient transport of onions by the chain conveyor 3, the spacing between the partitions 9 is greater than the width of the chain conveyor 3. This also ensures the removal of impurities such as foam from the surface of the washing water, preventing foam and other impurities from floating at the bottom of the chain conveyor 3.
[0020] To prevent onions from carrying foam and other impurities when they enter the chain conveyor 3, a spray pipe 5 is installed above the chain conveyor 3, and a spray head 6 is fixedly connected below the spray pipe 5 to further spray and clean the onions on the chain conveyor.
[0021] To increase the amount of bubbles released by the air inlet pipe 4, the part of the pipe wall located inside the cleaning tank of the air inlet pipe 4 is perforated, which can further increase the movement of the cleaning water, increase the effect of carrying foam and other impurities when the surface of the cleaning water moves to both sides, and also increase the cleaning effect on onions.
[0022] To prevent excessive water loss from the washing tank during onion transportation, the chain plate of the chain conveyor 3 is perforated, and the water sprayed from the spray head 6 is also added to the washing tank to ensure that the water level in the washing tank is consistent with that of the partition plate 9.
[0023] To facilitate the regular cleaning of water and scum that have overflowed into the interlayer, a cleaning port 11 is provided at the bottom of the cleaning tank. The cleaning port 11 can be connected to a drain pipe for sewage treatment.
[0024] The working process of this embodiment is as follows:
[0025] During the washing process, water is first poured into the washing tank. When the water level is level with the partition 9, water filling is stopped, and air intake pipe 4 starts to release air bubbles. Spray nozzles 6 start spraying water. Then, the chain conveyor 3 is operated, and onions are fed into the first washing tank 1 through the feed hopper 7. The brush roller 10 is used to turn and wash the onions, while also conveying them forward to prevent them from piling up at the feed point. After being washed in the first washing tank 1, the onions are transported by the chain conveyor 3 extending into the first washing tank 1. During this process, the spray nozzles 6 further rinse the onions on the chain. Then, the onions collide with the peeling plate 8 and enter the second washing tank 2. After a second wash in the second washing tank 2, they are transported by the chain conveyor 3 extending into the second washing tank 2 to the conveyor belt and sent to the lower pelletizing process. In subsequent processing, during the transport of the onions on the chain plate elevator 3 in the second cleaning tank 2, the spray head 6 will also rinse the onions on the chain plate a second time to ensure the cleaning effect. During the cleaning process, the air inlet pipe 4 will release a large number of bubbles, which will drive the movement of the cleaning water and cause the surface of the cleaning water to move from the middle to both sides. The foam, detached onion skins and other impurities on the surface of the cleaning water will gradually move to the front two sides under the action of the bubbles and the brush roller 10, and finally fall into the gap between the partition 9 and the cleaning tank, and be cleaned by the cleaning port 11. At the same time, the bubbles will also cause the onions to roll in the cleaning water, further increasing the cleaning effect. After being cleaned in the first cleaning tank 1, the onion skin will gradually soften and fall off. Those that have not completely fallen off will also fall off completely after colliding with the peeling plate, ensuring the cleaning effect of the onions.
Claims
1. An onion cleaning system, comprising a cleaning tank, said cleaning tank being divided into a first cleaning tank (1) and a second cleaning tank (2), characterized in that: Two partitions (9) are fixedly connected inside the cleaning tank. An air inlet pipe (4) is provided between the partitions (9). The air inlet pipe (4) passes through the lower part of one side of the cleaning tank and is fixedly connected thereto. Several brush rollers (10) are also rotatably connected between the partitions (9). The shaft of the brush roller (10) passes through the partitions (9) and the cleaning tank and is connected to the motor (12) for transmission. A chain plate elevator (3) is inclinedly arranged above the other side of the cleaning tank. One end of the chain plate elevator (3) extends into the cleaning tank. A feed hopper (7) is provided above one side of the first cleaning tank (1). A peeling plate (8) is fixedly connected to the top of one side of the second cleaning tank (2) through a connecting rod. The peeling plate (8) is inclined and the lower end faces into the second cleaning tank (2).
2. The onion cleaning system according to claim 1, characterized in that: The spacing between the partitions (9) is greater than the width of the chain plate of the chain plate elevator (3).
3. The onion cleaning system according to claim 1, characterized in that: A spray pipe (5) is provided above the chain plate elevator (3), and a spray head (6) is fixedly connected below the spray pipe (5).
4. The onion cleaning system according to claim 1, characterized in that: The air inlet pipe (4) has a perforated portion of its wall located within the cleaning tank.
5. The onion cleaning system according to claim 1, characterized in that: The chain plate of the chain plate elevator (3) has holes.
6. The onion cleaning system according to claim 1, characterized in that: A cleaning port (11) is provided at the bottom of one side of the cleaning tank.