Winnowing machine for processing quick-frozen vegetables

By introducing a heating device, multi-stage fan, and guide plate structure into the air separator, the problems of easy clumping and high damage rate of quick-frozen vegetables have been solved. This has enabled efficient separation of light impurities and qualified materials, reduced the breakage rate, and ensured the quality of vegetables.

CN224058042UActive Publication Date: 2026-03-31HEILONGJIANG ZHONGLAN FOOD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing air separators are prone to clumping and have a high damage rate when processing quick-frozen vegetables, and cannot effectively separate light impurities and ensure vegetable quality.

Method used

An air separator was designed, which includes a heating device, a multi-stage sorting device and a PLC controller. The heating device prevents frost from forming, the multi-stage fan performs wind pressure gradient separation, and the guide plate and inclined discharge port separate light impurities from qualified materials. The insulation structure prevents heat loss.

Benefits of technology

It effectively prevents frost from forming, reduces the damage rate on the surface of vegetables, achieves efficient separation of light impurities and qualified materials, and ensures the cell integrity and quality stability of vegetables.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of quick-frozen vegetable processing, and discloses a winnowing machine for processing quick-frozen vegetables, which comprises an equipment shell, a feeding hole is formed in the top of the equipment shell, a heat preservation structure is arranged on the outer surface of the equipment shell, and a discharging hole is formed in one side wall of the equipment shell; the flow guide plate is obliquely arranged in the equipment shell, and the flow guide plate is located below the feeding opening; the heating device is composed of a heating rod frame installed at the bottom of the flow guide plate, a plurality of heating rods installed on the heating rod frame and a temperature controller installed in the equipment shell, and the heating device is used for preventing frost condensation; and the multi-stage sorting device comprises a main fan, a first auxiliary fan and a second auxiliary fan, and the air speeds of the main fan, the first auxiliary fan and the second auxiliary fan are gradually increased. According to the utility model, frost condensation can be conveniently prevented, light impurities and qualified materials can be separated in a multi-stage manner, and meanwhile, the breakage rate of the surfaces of vegetables can be reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of processing quick-frozen vegetables, especially to the air separator for processing quick-frozen vegetables. BACKGROUND

[0002] The air separator for processing quick-frozen vegetables is an intelligent sorting device based on aerodynamics, which is specially used for efficiently separating impurities (stems and leaves, ice crystals, and insect bodies) and completing size grading in the processing of quick-frozen vegetables (such as green beans, corn kernels, and diced carrots).

[0003] In the processing of quick-frozen vegetables, raw materials often carry light impurities such as ice chips and stem fragments. Traditional air separators are designed for grain or dry materials. When using traditional air separators to air separate quick-frozen vegetables, the following problems exist:

[0004] 1) easy to clump: quick-frozen vegetables have ice frost on the surface, which is easy to clump;

[0005] 2) high damage rate: high wind speed can easily cause damage to the surface of the vegetables, affecting the quality. INVENTION CONTENTS

[0006] In order to overcome the defects of the prior art pointed out above, the present inventors have conducted in-depth research and, after a lot of creative labor, completed the present utility model.

[0007] Specifically, the technical problem to be solved by the present utility model is to provide an air separator for processing quick-frozen vegetables to solve the technical problems of easy clumping and high damage rate.

[0008] To solve the above technical problems, the present utility model provides the following technical solutions:

[0009] The air separator for processing quick-frozen vegetables comprises an equipment shell, a feed inlet for feeding is installed on the top of the equipment shell, a heat preservation structure is arranged on the outer surface of the equipment shell, and a discharge port is formed in one side wall of the equipment shell;

[0010] A deflector is obliquely arranged in the equipment shell, and the deflector is located below the feed inlet;

[0011] A heating device is composed of a heating rod frame installed at the bottom of the deflector, a plurality of heating rods installed on the heating rod frame, and a temperature controller installed in the equipment shell, and the heating device is used to prevent ice frost from condensing;

[0012] The multi-stage sorting device comprises a main air blower, a first auxiliary air blower and a second auxiliary air blower, air speeds of the main air blower, the first auxiliary air blower and the second auxiliary air blower gradually increase, and the multi-stage sorting device separates light impurities and qualified materials through air pressure gradient.

[0013] As an improved technical solution, the discharge port comprises an impurity outlet and a finished product outlet, and the impurity outlet is located above the finished product outlet.

[0014] As an improved technical solution, the guide plate is provided with an anti-sticking coating.

[0015] As an improved technical solution, the heat preservation structure comprises a heat preservation cotton layer and a heat preservation plate mounted on the equipment shell, and a sandwich layer is arranged between the heat preservation cotton layer and the heat preservation plate, and the sandwich layer is filled with polyurethane foaming material.

[0016] As an improved technical solution, a plurality of heating rods are equidistantly arranged along the width direction of the heating rod frame, and the heating rods are connected in parallel.

[0017] As an improved technical solution, the PLC controller is further mounted on the equipment shell, the PLC controller has a sub-control function, the PLC controller is electrically connected with an external power supply, and the PLC controller is used for controlling start and stop of the heating rods, temperature of the temperature controller, and start and stop and air speed of the main air blower, the first auxiliary air blower and the second auxiliary air blower.

[0018] After the above technical scheme is adopted, the beneficial effects of the present application are as follows:

[0019] 1. The PLC controller is used for opening the heating rods, and external power supply provides electric energy, at this time, the heating rods heat the equipment shell until the preset threshold value is reached, during which period, the temperature controller plays a role in temperature control, thereby conveniently preventing frost from condensing.

[0020] 2. The main air blower, the first auxiliary air blower and the second auxiliary air blower are started, and then the quick-frozen vegetables are put into the equipment shell through the feeding port, at this time, the quick-frozen vegetables flow into the air separation area of the equipment shell through the inclined guide plate, the main air blower, the first auxiliary air blower and the second auxiliary air blower perform air pressure gradient separation on the quick-frozen vegetables, light impurities are discharged through the impurity outlet, and qualified materials are discharged through the inclined surface and the finished product outlet, thereby conveniently separating light impurities and qualified materials through multi-stage sorting, and reducing the damage rate of the surface of the vegetables.

[0021] 3. The heat preservation structure is provided, and the heat preservation structure comprises a heat preservation cotton layer, a sandwich layer and a heat preservation plate, thereby preventing rapid loss of temperature. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0023] Figure 1 This is a schematic diagram of the overall main structure of this utility model.

[0024] Figure 2 This is a schematic side view of the overall structure of this utility model.

[0025] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0026] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0027] Explanation of reference numerals in the attached figures:

[0028] In the diagram: 1. Equipment casing; 101. Feed inlet; 102. Impurity outlet; 103. Finished product outlet; 104. Inclined surface; 2. Guide plate; 3. Heating rod frame; 4. Heating rod; 5. Temperature controller; 601. Insulation layer; 602. Interlayer; 603. Insulation board; 7. Main fan; 8. First auxiliary fan; 9. Second auxiliary fan; 10. PLC controller. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0032] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0033] Reference Figures 1-4 A wind separator for processing quick-frozen vegetables is provided. This wind separator for processing quick-frozen vegetables includes a housing 1. The top of the housing 1 is equipped with a feed inlet 101 for feeding. The outer surface of the housing 1 is provided with a heat insulation structure, which includes a heat insulation cotton layer 601 and a heat insulation board 603 installed on the housing 1. A sandwich layer 602 is provided between the heat insulation cotton layer 601 and the heat insulation board 603. The sandwich layer 602 is filled with polyurethane foam material to prevent rapid heat loss. A discharge port is provided on one side wall of the housing 1. The discharge port includes an impurity outlet 102 and a finished product outlet 103. The impurity outlet 102 is located above the finished product outlet 103. The bottom surface of the finished product outlet 103 is set with an inclined surface 104 to facilitate the discharge of light impurities through the impurity outlet 102. Qualified materials are discharged through the inclined surface 104 and the finished product outlet 103.

[0034] The guide plate 2 is inclinedly installed inside the equipment housing 1 and is located below the feed inlet 101. The guide plate 2 is provided with an anti-stick coating to prevent sticking and guide the quick-frozen vegetables into the air separation area.

[0035] The heating device consists of a heating rod frame 3 installed at the bottom of the guide plate 2, several heating rods 4 installed on the heating rod frame 3, and a temperature controller 5 installed inside the equipment housing 1. The heating device is used to prevent frost from forming. Several heating rods 4 are equidistantly arranged along the width direction of the heating rod frame 3 and are connected in parallel to prevent frost from forming. In application, the temperature of the bottom of the guide plate 2 is controlled at 0℃-5℃ by the temperature controller 5. The guide plate 2 is made of stainless steel. The temperature setting is based on the following: when the temperature of the guide plate 2 is higher than the dew point temperature controlled by the environment, water vapor can be prevented from condensing into liquid water and then freezing. 0℃ is the phase transition point of ice and water. Maintaining the temperature of the guide plate ≥0℃ can prevent the formation of ice crystals. That is, the temperature is controlled at 0℃-5℃, which can effectively prevent frost from forming and ensure the cell integrity and quality stability of quick-frozen vegetables.

[0036] The multi-stage sorting device includes a main fan 7, a first auxiliary fan 8, and a second auxiliary fan 9. The wind speeds of the main fan 7, the first auxiliary fan 8, and the second auxiliary fan 9 gradually increase. The multi-stage sorting device separates light impurities from qualified materials through wind pressure gradient, so as to facilitate the separation of light impurities from qualified materials in multiple stages, while reducing the damage rate of the vegetable surface.

[0037] Reference Figure 2 It also includes a PLC controller 10 installed on the equipment housing 1. The PLC controller 10 has a sub-control function. The PLC controller 10 is electrically connected to an external power supply. The PLC controller 10 is used to control the start and stop of the heating rod 4, the temperature of the temperature controller 5, and the start and stop and wind speed of the main fan 7, the first auxiliary fan 8, and the second auxiliary fan 9, so as to facilitate intelligent regulation.

[0038] In actual use, the heating rod 4 is turned on by the PLC controller 10 and powered by an external power source. At this time, the heating rod 4 heats the outer shell 1 of the equipment until the preset threshold is reached. During this period, the temperature controller 5 plays the role of temperature control, while the heat preservation structure plays the role of preventing rapid temperature loss, thus preventing frost from forming.

[0039] Then, by starting the main fan 7, the first auxiliary fan 8, and the second auxiliary fan 9, the quick-frozen vegetables are fed into the equipment shell 1 through the feed inlet 101. At this time, the quick-frozen vegetables flow into the air separation area of ​​the equipment shell 1 through the inclined guide plate 2. The main fan 7, the first auxiliary fan 8, and the second auxiliary fan 9 perform wind pressure gradient separation on the quick-frozen vegetables, and discharge light impurities through the impurity outlet 102. Qualified materials are discharged through the inclined surface 104 and the finished product outlet 103, which facilitates multi-stage separation of light impurities and qualified materials and reduces the damage rate of the vegetable surface. This device not only helps prevent frost condensation, but also performs multi-stage separation of light impurities and qualified materials, while reducing the damage rate of the vegetable surface.

[0040] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A ventilator for processing quick-frozen vegetables, characterized in that: Include: The device shell (1), the top of the device shell (1) is provided with a feeding port (101) for feeding, the outer surface of the device shell (1) is provided with a heat preservation structure, and a side wall of the device shell (1) is provided with a discharge port; The guide plate (2) is inclinedly arranged in the device shell (1), and the guide plate (2) is located below the feeding port (101); The heating device is composed of a heating rod frame (3) installed at the bottom of the guide plate (2), a plurality of heating rods (4) installed on the heating rod frame (3), and a temperature controller (5) installed in the device shell (1), and the heating device is used to prevent frost from condensing; The multi-stage sorting device includes a main fan (7), a first auxiliary fan (8) and a second auxiliary fan (9), the wind speed of the main fan (7), the first auxiliary fan (8) and the second auxiliary fan (9) gradually increases, and the multi-stage sorting device separates light impurities and qualified materials through wind pressure gradient.

2. The frozen vegetable processing air separator according to claim 1, characterized in that: The discharge port includes an impurity outlet (102) and a finished product outlet (103), and the impurity outlet (102) is located above the finished product outlet (103), and the bottom surface of the finished product outlet (103) is provided with an inclined surface (104).

3. The frozen vegetable processing air separator according to claim 1, characterized in that: The guide plate (2) is provided with an anti-sticking coating.

4. The frozen vegetable processing air separator according to claim 1, characterized in that: The heat preservation structure includes a heat preservation cotton layer (601) and a heat preservation plate (603) installed on the device shell (1), a sandwich layer (602) is arranged between the heat preservation cotton layer (601) and the heat preservation plate (603), and the sandwich layer (602) is filled with polyurethane foaming material.

5. The frozen vegetable processing air separator according to claim 1, characterized in that: A plurality of heating rods (4) are equidistantly arranged along the width direction of the heating rod frame (3), and the heating rods (4) are connected in parallel.

6. The frozen vegetable processing air separator according to claim 1, characterized in that: It also includes a PLC controller (10) installed on the device shell (1), the PLC controller (10) has a sub-control function, the PLC controller (10) is electrically connected with an external power supply, the PLC controller (10) is used to control the start and stop of the heating rod (4), the temperature of the temperature controller (5), and the start and stop and wind speed of the main fan (7), the first auxiliary fan (8) and the second auxiliary fan (9).