Single-pipe ventilator capable of applying mildew-proof powder

Abstract

A single-pipe ventilator capable of applying mildew-proof powder relates to the technical field of single-pipe ventilators, and comprises a single-pipe body and a fan arranged at the upper end of the single-pipe body, one side of the single-pipe body is provided with a bent pipe and a powder supply assembly located below the bent pipe, the bent pipe is arranged in the longitudinal direction of the single-pipe body, and the two ends of the bent pipe are both communicated with an inner cavity of the single-pipe body; the powder supply assembly comprises a powder containing barrel and a movable powder carrying plate which is arranged in the powder containing barrel and used for containing mildew-proof powder, and the top of the powder containing barrel is open and communicates with an air outlet of the bent pipe; the movable powder carrying plate comprises an upper carrying plate, a lower carrying plate and a spring arranged between the upper carrying plate and the lower carrying plate, the upper carrying plate is arranged in the powder containing barrel in a sliding mode, and the spring can push the upper carrying plate to move upwards along with gradual decrease of the mildew-proof powder, so that the upper edge of the mildew-proof powder is located at the opening of the powder containing barrel, and the mildew-proof powder is conveyed to an inner cavity of the single pipe body along with airflow in the bent pipe. The single-pipe ventilator is used for solving the problem that a single-pipe ventilator in the prior art is limited in prevention and control effect on mildew inside grains.

Description

Technical Field

[0001] The utility model relates to the field of grain storage devices, in particular to a single-tube ventilator capable of applying mildew-proof powder. Background Art

[0002] During grain storage, uneven heat and moisture transfer inside the grain pile may lead to high local moisture, causing microorganisms to grow and multiply rapidly, thus causing local heating, mildew, and the production of fungal toxins in the grain, which seriously threatens grain storage and quality safety. In addition, the accumulation of impurities in the grain pile will lead to poor ventilation in the grain pile, which is not conducive to the heat dissipation inside the grain pile, and is also easy to promote the growth and reproduction of microorganisms, resulting in heating, mildew and other problems in the local grain pile. Therefore, it is particularly important to strengthen anti-mildew measures inside the grain pile.

[0003] Single-tube ventilation technology is a ventilation technology based on the principle of internal circulation ventilation. It consists of a small fan with a motor and a ventilation pipe. It relies on the suction and discharge of the single-tube fan to form air circulation in the grain pile and warehouse space to ventilate and dissipate heat deep in the grain pile. For example, the Chinese utility model patent with application number CN 201720463435.9 discloses a single-tube fan, and the Chinese utility model patent with application number CN 202221678329.X discloses a single-tube fan that can automatically clean the ventilation holes.

[0004] However, the single-tube ventilation method of the prior art only removes the heat from the heat point by local ventilation, but has no significant effect on the growth and reproduction of microorganisms that cause fever. Therefore, the single-tube ventilation method of the prior art has limited effect in solving the problem of mildew inside grain. Utility Model Content

[0005] The utility model aims to provide a single-tube ventilator capable of applying mildew-proof powder, so as to solve the problem that the single-tube ventilator in the prior art has limited effect on preventing and controlling mildew inside grains.

[0006] In order to solve the above technical problems, the specific solution adopted by the utility model is: a single-tube ventilator capable of applying anti-mildew powder, comprising a single-tube body and a fan arranged at the upper end of the single-tube body, the lower end of the single-tube body is used to be inserted into a grain pile and the tube wall at the lower end of the single-tube body is densely covered with exhaust holes, a bend pipe and a powder supply assembly located below the bend pipe are arranged on one side of the single-tube body, the bend pipe is arranged longitudinally along the single-tube body, and both ends of the bend pipe are connected to the inner cavity of the single-tube body, the upper end of the bend pipe is its air inlet, and the lower end is its air outlet. The end is its outlet; the powder supply component includes a powder holding barrel and a movable powder carrying plate arranged in the powder holding barrel for holding anti-mildew powder, the top of the powder holding barrel is open and connected to the air outlet of the bent pipe; the movable powder carrying plate includes an upper loading plate, a lower loading plate and a spring connected between the upper loading plate and the lower loading plate, the upper loading plate is slidably arranged in the powder holding barrel, and the spring can push the upper loading plate up as the anti-mildew powder decreases, so that the upper edge of the anti-mildew powder is located at the opening of the powder holding barrel and is transported to the inner cavity of the single-tube body along with the airflow in the bent pipe.

[0007] As a further optimization of the above technical solution, the downloading plate is slidably arranged in the powder holding barrel, and an adjusting screw for driving the downloading plate to move up and down is arranged in the powder holding barrel.

[0008] As a further optimization of the above technical solution, a powder injection port is provided on the upper part of the wall of the powder containing tube.

[0009] As a further optimization of the above technical solution, the upper end surface of the tube wall of the powder containing tube gradually decreases in the direction approaching the single tube body.

[0010] As a further optimization of the above technical solution, an air inlet switch capable of opening and closing the curved pipe air inlet is provided in the single-tube body.

[0011] As a further optimization of the above technical solution, the inner wall of the single-tube body is provided with a guide plate for guiding the airflow to flow into the curved pipe.

[0012] As a further optimization of the above technical solution, the single-tube body includes a shell, a reducer, an upper air duct, a middle air duct and a lower air duct which are connected in sequence from top to bottom. The fan is installed on the upper end face of the shell, the lower end face of the shell is open and connected to the large diameter end of the reducer, the small diameter end of the reducer is connected to the upper air duct, the bent pipe and the powder supply assembly are both arranged on one side of the upper air duct, and the exhaust hole is located on the side wall of the lower air duct.

[0013] As a further optimization of the above technical solution, a lower cone with a tip facing downward is provided at the lower end of the lower air duct.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model arranges a powder supply assembly and a bend on the side wall of a single-tube body, and part of the airflow in the single-tube body enters the inner cavity of the bend, bringing the anti-mildew powder in the air supply assembly into the single-tube body and into the depth of the grain pile. In this process, the single-tube ventilation can not only dissipate the heat from the hot spots in the grain pile, but also transport the anti-mildew powder, thereby achieving targeted and effective application of the anti-mildew powder inside the grain pile, effectively inhibiting the growth and reproduction of microorganisms in the grain, as well as the problems of heating and mildew of the grain pile and excessive mycotoxin content caused by the same.

[0016] 2. By setting a lifting powder loading plate in the powder holding tube, after the anti-mildew powder is placed on the upper loading plate, the spring is compressed under the action of the anti-mildew powder's own gravity. As the anti-mildew powder decreases, its gravity decreases, and the spring gradually resets to push the upper loading plate up. The anti-mildew powder can always be located at the air outlet of the elbow and transported to the single tube body along with the airflow in the elbow.

[0017] 3. After adding anti-mildew powder into the powder holding tube through the powder filling port, if the upper edge of the anti-mildew powder does not reach the air flow channel of the elbow, twist the adjusting screw to move the movable powder carrier plate upward to lift the anti-mildew powder into the air flow channel of the elbow. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the powder supply component in the utility model;

[0020] Description of the drawings: 1. Fan, 2. Exhaust port, 3. Shell, 4. Reducer, 5. Pin, 6. Upper air duct, 7. Elbow, 8. Powder supply assembly, 801. Powder container, 802. Movable powder loading plate, 8021. Upper loading plate, 8022. Spring, 8023. Lower loading plate, 803. Nut, 804. Adjusting screw, 805. Powder injection port, 806. Sealing plug, 9. Middle air duct, 10. Lower air duct, 11. Lower cone, 12. Air inlet switch, 13. Guide plate, 14. Anti-mildew powder. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further elaborated in detail below in conjunction with specific implementation cases. The parts that are not recorded and disclosed in detail in the following implementation cases of the utility model, such as the connection method between the fan and the shell in the single-tube fan, the ventilation method of the single-tube fan, the specific structure of the air inlet switch, etc., should be regarded as the prior art known or should be known to those skilled in the art.

[0022] like Figure 1 , 2As shown, the utility model discloses a single-tube ventilator capable of applying anti-mildew powder. When the device is used to ventilate a grain pile, the anti-mildew powder 14 is transported into the grain pile to inhibit the growth and reproduction of microorganisms in the grain pile, as well as the problems of heating and mildew of the grain pile and excessive mycotoxin content caused thereby.

[0023] The same as the prior art is that the single-tube ventilator includes a single-tube body and a fan 1 arranged at the upper end of the single-tube body, the lower end of the single-tube body is used to be inserted into the grain pile and the tube wall at the lower end of the single-tube body is densely covered with exhaust holes. The single-tube body specifically includes a shell 3, a reducer 4, an upper air duct 6, a middle air duct 9 and a lower air duct 10 connected in sequence from top to bottom, and the upper air duct 6, the middle air duct 9 and the lower air duct 10 have the same diameter and are consistent at the small diameter end of the reducer 4, and the large diameter end of the reducer 4 is upward.

[0024] The fan 1 is mounted on the upper end surface of the housing 3, and an exhaust port 2 is provided on the housing 3. The lower end surface of the housing 3 is open and connected to the large diameter end of the reducer 4. The small diameter end of the reducer 4 has the same diameter as the upper air duct 6 and is connected to the upper air duct 6 through a pin 5. Similarly, the upper air duct 6, the middle air duct 9 and the lower air duct 10 are all connected through the pin 5. A lower cone 11 is provided at the lower end of the lower air duct 10, and the tip of the lower cone 11 is downward to facilitate the insertion of the single-tube body into the grain pile. The exhaust hole is provided in the lower air duct 10 to ventilate the grain pile. It can be understood that the connection between the upper air duct 6, the middle air duct 9 and the lower air duct 10 can also be a threaded connection.

[0025] Different from the prior art, a powder supply assembly 8 and a curved pipe 7 are provided on one side of the single-tube body. Both ends of the curved pipe 7 are opened and connected to the inner cavity of the single-tube body. The curved pipe 7 is arranged along the longitudinal direction of the single-tube body, the upper end is its air inlet, and the lower end is its air outlet. The powder supply assembly 8 is arranged at the air outlet of the curved pipe 7.

[0026] Specifically, the curved pipe 7 and the powder supply assembly 8 are both arranged on one side of the upper air duct 6. The curved pipe 7 is fixed to the side wall of the upper air duct 6 by welding. The side wall of the upper air duct 6 is provided with two through holes spaced apart along its height direction. The two through holes correspond to the air inlet and the air outlet of the curved pipe 7 respectively. The diameters of the two through holes are the same as the diameters of the openings at both ends of the curved pipe 7.

[0027] like Figure 1 , 2 As shown, the powder supply assembly 8 is arranged below the curved pipe 7, including a powder cylinder 801 and a movable powder carrier plate 802 arranged in the powder cylinder 801 for holding the anti-mildew powder 14, and the top of the powder cylinder 801 is open and connected to the air outlet of the curved pipe 7.

[0028] The movable powder loading plate 802 comprises an upper loading plate 8021 , a lower loading plate 8023 and a spring 8022 arranged between the upper loading plate 8021 and the lower loading plate 8023 . Both the upper loading plate 8021 and the lower loading plate 8023 are slidably arranged in the powder containing tube 801 .

[0029] The bottom of the powder barrel 801 is provided with a positioning screw 804 for driving the movable powder loading plate 802 to move up and down. Specifically, a threaded hole is provided at the bottom of the powder barrel 801, and an external thread is provided on the positioning screw 804 for use with the internal thread on the threaded hole. The upper end of the positioning screw 804 is rotatably arranged on the lower plate surface of the download plate 8023, and the lower end of the positioning screw 804 is located below the download plate 8023 and is provided with a nut 803. In addition, in order to facilitate the regular cleaning of the inner cavity of the powder barrel 801, the bottom of the powder barrel 801 is fixed to the bottom of the barrel body of the powder barrel 801 in a detachable manner, which can be either a snap-on or a threaded connection. After a period of use, when the bottom of the barrel or the download plate 8023 falls into the mildew-proof powder, the movable powder loading plate 802 and the bottom of the barrel are removed from the barrel body together to clean up the excess mildew-proof powder that may interfere with the normal operation of the movable powder loading plate 802.

[0030] After adding the anti-mildew powder 14 into the powder container 801, the anti-mildew powder 14 falls onto the upper plate surface of the upper loading plate 8021. Under the action of the gravity of the anti-mildew powder 14, the upper loading plate 8021 moves downward to compress the spring 8022. By controlling the adjusting screw 804, the upper edge of the anti-mildew powder 14 in the powder container 801 is located in the air flow channel of the elbow 7. The air flow in the elbow 7 drives the anti-mildew powder 14 into the upper air duct 6, and then descends through the middle air duct 9 into the lower air duct 10 in sequence. The anti-mildew powder 14 is discharged into the grain pile through the exhaust port 2 on the wall of the downwind duct 10; when the anti-mildew powder 14 gradually decreases, the weight of the anti-mildew powder 14 gradually decreases to reduce the compression of the spring 8022, and the spring 8022 gradually resets to drive the upper loading plate 8021 and the anti-mildew powder 14 retained thereon to gradually rise, thereby lifting the anti-mildew powder 14 retained on the upper loading plate 8021 to the air flow channel of the bent pipe 7, so that the anti-mildew powder 14 can be continuously provided to the grain pile.

[0031] The powder barrel 801 is configured as a barrel made of a transparent material, so that the amount of anti-mildew powder 14 in the powder barrel 801 can be observed in real time, and the anti-mildew powder 14 can be replenished in time when it is insufficient. In addition, a visual window can also be opened on the powder barrel 801 to observe the inner cavity of the powder barrel 801 in real time. It should be noted that when a visual window is opened on the powder barrel 801, the visual window is long and the length direction of the visual window is consistent with the axial direction of the powder barrel 801. The length of the visual window covers the moving stroke of the upper loading plate 8021. The wall of the powder barrel 801 at the visual window is configured as a transparent material, and the transparent material can be glass, acrylic board, etc.

[0032] A powder injection port 805 is provided on the wall of the powder cylinder 801, and a sealing plug 806 is provided on the powder injection port 805 for use therewith. The powder injection port 805 is arranged at the upper part of the wall of the cylinder so that the anti-mildew powder 14 can fall into the powder cylinder 801. When the anti-mildew powder 14 in the powder cylinder 801 is used up, the adjusting screw 804 is twisted to move the movable powder loading plate 802 downward, and the anti-mildew powder 14 is added into the powder cylinder 801. When the anti-mildew powder 14 is applied into the grain pile, the height of the upper edge of the anti-mildew powder 14 is higher than the height of the powder filling port 805, and when the anti-mildew powder 14 is added into the powder containing tube 801 through the powder filling port 805, the upper edge of the anti-mildew powder 14 can generally only be lower than the powder filling port 805 or flush with the powder filling port 805. At this time, by twisting the adjusting screw 804, the movable powder carrying plate 802 can be moved upward to lift the upper edge of the anti-mildew powder 14 above the powder filling port 80 and position it in the air flow channel of the curved pipe 7.

[0033] In order to facilitate blowing the anti-mildew powder 14 into the single tube body, the upper end surface of the tube wall of the powder tube 801 gradually decreases in the direction close to the single tube body, and the upper end surface of the tube wall of the powder tube 801 connected to the single tube body is the lowest.

[0034] An air inlet switch 12 capable of opening and closing the air inlet of the curved pipe 7 is arranged in the single-tube body. The specific structure of the air inlet switch 12 is prior art and will not be described in detail here.

[0035] The inner wall of the single-tube body is provided with a guide plate 13 for guiding the airflow to flow into the curved pipe 7. The guide plate 13 is located at the lower edge of the upper through hole of the single-tube body. The guide plate 13 penetrates into the single-tube body and is arranged obliquely upward. The length of the reverse flow plate extending into the single-tube body is less than 1 / 2 of the diameter of the upper air duct 6 to ensure that a part of the airflow can flow into the curved pipe 7, thereby reducing the interference with the airflow flow in the single-tube body.

[0036] When in use, the single-tube fan of the utility model can be inserted into grain piles of different depths, but it is necessary to ensure that the upper air duct 6, the bent pipe 7 and the powder supply assembly 8 are located above the grain surface, and the middle air duct 9 and the lower air duct 10 are both located inside the grain pile. Different numbers of middle air ducts 9 can be selected according to the depth of the grain pile.

[0037] Through the single-tube ventilator of the utility model, the mildew-proof powder 14 enters the downwind duct 10 with the wind flow and is evenly dispersed to the surface of the grain through multiple ventilation holes, achieving the directional and effective addition of mildew-proof agent inside the grain pile, effectively inhibiting the growth and reproduction of microorganisms in the grain, and the problems of heating and mildew of the grain pile and excessive mycotoxin content caused by it. The targeted release of mildew-proof agent inside the grain pile can more specifically deal with the local heating and mildew problems of the grain pile, and improve the storage stability and safety of the grain.

[0038] The utility model has a simple structure and convenient operation design, which reduces the labor intensity of operators and improves work efficiency and production efficiency. Since the problem of mildew in grain storage is effectively solved, the loss caused by mildew of grain can be avoided, thereby improving the overall output and economic benefits.

[0039] The device of the utility model has a wide range of applications. It can be applied to the grain storage industry. By running inside the storage warehouse, the ventilation and humidity of the local area of ​​the grain pile are kept stable, thereby effectively preventing the problem of grain mold. It can also be used in food processing to ensure the quality and safety of raw materials and finished products. For example, in the flour production process, the device can be installed in the storage warehouse where the flour is packaged to prevent the flour from getting moldy. One of the common problems in the storage management of agricultural products is that agricultural products are prone to moisture and mold during long-term stacking and storage. Our device can be applied to the storage management of agricultural products to ensure the quality and safety of agricultural products. For example, in a fruit warehouse, a single-tube device is pre-installed in advance, and it can be used to maintain the freshness of the fruit and prevent mold by simply moving the position of the fan.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A single-tube ventilator capable of applying anti-mildew powder, comprising a single-tube body and a fan (1) arranged at the upper end of the single-tube body, the lower end of the single-tube body being used to be inserted into a grain pile and the tube wall at the lower end of the single-tube body being densely covered with exhaust holes, characterized in that: A curved pipe (7) and a powder supply assembly (8) located below the curved pipe (7) are provided on one side of the single tube body. The curved pipe (7) is arranged along the longitudinal direction of the single tube body, and both ends of the curved pipe (7) are connected to the inner cavity of the single tube body. The upper end of the curved pipe (7) is its air inlet, and the lower end is its air outlet. The powder supply assembly (8) comprises a powder holding cylinder (801) and a movable powder carrying plate (802) arranged in the powder holding cylinder (801) and used for holding mildew-proof powder (14). The top of the powder holding cylinder (801) is open and connected to the air outlet of the curved pipe (7). The movable powder loading plate (802) comprises an upper loading plate (8021), a lower loading plate (8023) and a spring (8022) arranged between the upper loading plate (8021) and the lower loading plate (8023); the upper loading plate (8021) is slidably arranged in the powder holding tube (801); the spring (8022) can push the upper loading plate (8021) to move upward as the amount of the anti-mildew powder (14) decreases, so that the upper edge of the anti-mildew powder (14) is located at the opening of the powder holding tube (801) and is transported to the inner cavity of the single tube body along with the airflow in the curved tube (7).

2. A single-tube ventilator capable of applying mildew-proof powder according to claim 1, characterized in that: The download plate (8023) is slidably arranged in the powder holding tube (801), and an adjusting screw (804) is arranged in the powder holding tube (801) for driving the download plate (8023) to move up and down.

3. A single-tube ventilator capable of applying mildew-proof powder according to claim 1, characterized in that: The upper part of the wall of the powder containing tube (801) is provided with a powder injection port (805).

4. A single-tube ventilator capable of applying mildew-proof powder according to claim 1, characterized in that: The upper end surface of the wall of the powder containing tube (801) gradually decreases in the direction approaching the single tube body.

5. The single-tube ventilator capable of applying mildew-proof powder according to claim 1, characterized in that: An air inlet switch (12) capable of opening and closing the air inlet of the curved pipe (7) is arranged in the single-tube body.

6. The single-tube ventilator capable of applying mildew-proof powder according to claim 1, characterized in that: The inner wall of the single-tube body is provided with a guide plate (13) for guiding the airflow to flow into the curved tube (7).

7. The single-tube ventilator capable of applying mildew-proof powder according to claim 1, characterized in that: The single-tube body comprises a shell (3), a reducer (4), an upper air duct (6), a middle air duct (9) and a lower air duct (10) which are connected in sequence from top to bottom. The fan (1) is mounted on the upper end surface of the shell (3). The lower end surface of the shell (3) is open and connected to the large-diameter end of the reducer (4). The small-diameter end of the reducer (4) is connected to the upper air duct (6). The elbow (7) and the powder supply assembly (8) are both arranged on one side of the upper air duct (6). The exhaust hole is located on the side wall of the lower air duct (10).

8. The single-tube ventilator capable of applying mildew-proof powder according to claim 7, characterized in that: A lower cone (11) with a tip pointing downward is provided at the lower end of the lower air duct (10).

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