WO2023068589A1

WO2023068589A1 - Powder delivery system

Info

Publication number: WO2023068589A1
Application number: PCT/KR2022/014655
Authority: WO
Inventors: 안신
Original assignee: 안신
Priority date: 2021-10-22
Filing date: 2022-09-29
Publication date: 2023-04-27
Also published as: KR102442432B1

Abstract

Introduced is a powder delivery system comprising: a loading chute which has a vertically extending shape and has a double structure including inner and outer tubes; and a suction device which is connected to the loading chute and suctions gas between the inner and outer tubes, wherein: the inner and outer tubes are formed to have a structure in which the inner and outer tubes are surrounded with an outer surface; the inner tube discharges powder introduced through the open top thereof to an inlet of a movable tank through the open bottom thereof; and the outer tube is brought at the lower end thereof into close contact with the movable tank and is connected at the upper end thereof to the suction device.

Description

powder conveying system

The present invention relates to a powder transport system, and more particularly, to a technology for removing dust generated as milled grain powder is transferred to a mobile tank of a vehicle.

Due to the westernization of dietary life, people's rice consumption has significantly decreased, and as rice stocks have rapidly increased, serious problems such as a decrease in income in rural areas where rice farming has occurred have occurred. In order to solve these problems, research on ways to promote rice consumption has been conducted, and among them, research and development on processed foods using rice has been intensively conducted.

For food using rice as a raw material, it is easy to develop food by crushing rice and transforming it into rice powder having fine particles rather than using it in the form of rice grains as they are. In order to manufacture processed food using rice, above all, a process of grinding rice grains to have fine particles and milling them into powder form must be preceded.

The powder milled in the grain grinding system is shipped by vehicle, and a lot of dust is generated by the powder during the transportation process for loading the powder into the mobile tank of the vehicle. Particularly, there is a possibility that dust generated during the transfer process may cause respiratory diseases of workers, and there is a risk of explosion due to fire or the like.

The matters described as the background art above are only for improving understanding of the background of the present invention, and should not be taken as an admission that they correspond to prior art already known to those skilled in the art.

The present invention is to propose a powder transport system including a double-structured loading chute for sucking dust generated in an inner tube for transferring powder to a moving tank of a vehicle from an outer tube.

One embodiment of the present invention for solving the above problems, has a shape extending in the vertical direction, a loading chute of a double structure consisting of an inner tube and an outer tube; And a suction device connected to the loading chute to suck gas between the inner tube and the outer tube; including, the inner tube and the outer tube are formed in a structure surrounded by an outer surface, and the inner tube has an open top The powder introduced through is discharged to the inlet of the mobile tank through the open lower part, and the outer tube is characterized in that the lower end is in close contact with the mobile tank and the upper end is connected to the suction device.

At the lower end of the outer tube, a magnetic material generating an attractive force may be disposed between the moving tank and the metal material.

A plurality of magnetic materials may be provided and spaced apart from each other in a circumferential direction.

At the lower end of the outer tube, a filter formed of a breathable material and allowing external air to flow into the inside may be disposed between magnetic bodies spaced apart from each other.

The lower end of the filter extends downward more than the lower end of the magnetic material, and may be compressed in the vertical direction when pressure is applied.

The inner tube may be slidable in an up and down direction between a position where the lower end is connected to the inlet of the movable tank and a position spaced apart from the inlet of the movable tank.

After the transfer of the powder through the inner tube is completed, the release controller for sliding the inner tube upward; may further include.

The discharge controller can continue to operate the suction device in a state where the lower end of the inner tube slides upward from the inlet of the moving tank.

The lower end of the outer tube may be separated from the moving tank after the operation of the suction device is completed with the lower end of the inner tube sliding upward.

The inhalation device may collect powder from gas inhaled from the loading chute.

According to the powder transfer system of the present invention, it has an effect of removing dust generated during the transfer process to the transfer tank of the powder.

In addition, by recovering the powder discharged to the outside by dust during the transfer process, the loss of the powder is reduced.

1 is a block diagram of a powder milling system including a powder metering system according to an embodiment of the present invention.

2 is a block diagram of a powder transport system according to an embodiment of the present invention.

3 is a perspective view and a bottom view of a loading chute according to an embodiment of the present invention.

Figure 4 shows a control sequence of the powder transport system according to an embodiment of the present invention.

Specific structural or functional descriptions of the embodiments of the present invention disclosed in this specification or application are merely exemplified for the purpose of explaining the embodiments according to the present invention, and the embodiments according to the present invention may be implemented in various forms. and should not be construed as being limited to the embodiments described in this specification or application.

Embodiments according to the present invention can apply various changes and can have various forms, so specific embodiments are illustrated in the drawings and described in detail in this specification or application. However, this is not intended to limit the embodiments according to the concept of the present invention to a specific disclosed form, and should be understood to include all modifications, equivalents, or substitutes included in the spirit and technical scope of the present invention.

Terms such as first and/or second may be used to describe various components, but the components should not be limited by the terms. The above terms are only for the purpose of distinguishing one component from another component, e.g., without departing from the scope of rights according to the concept of the present invention, a first component may be termed a second component, and similarly The second component may also be referred to as the first component.

It is understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle. Other expressions describing the relationship between elements, such as "between" and "directly between" or "adjacent to" and "directly adjacent to", etc., should be interpreted similarly.

Terms used in this specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as "comprise" or "having" are intended to designate that the described feature, number, step, operation, component, part, or combination thereof exists, but one or more other features or numbers However, it should be understood that it does not preclude the presence or addition of steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined herein, they are not interpreted in an ideal or excessively formal meaning. .

Hereinafter, the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in each figure indicate like elements.

Referring to FIG. 1 , a powder milling system including a powder metering system according to an embodiment of the present invention is a facility system for milling grains such as white rice.

The powder milling system includes a grain storage system 100 for storing grains to be milled, a hopper system 200 for receiving stored grains, a sorting system 300 for detecting defects in the input grains, and a crushing unit for sorted grains. Systems such as a crushing system 400, a weighing system 500 for weighing the pulverized powder, and a shipping system 600 for shipping the measured powder to a transfer tank of a vehicle are included.

Also, in the powder milling system, grains or powder are transported by a conveyor belt or a conveying device such as an elevator.

2 is a configuration diagram of a powder transport system 600 according to an embodiment of the present invention.

Referring further to FIG. 2 , the powder transport system 600 according to an embodiment of the present invention has a shape extending in the vertical direction and has a double loading structure composed of an inner tube 640 and an outer tube 620. chute 620,640; And a suction device 630 connected to the loading chute 620 640 to suck gas between the inner tube 640 and the outer tube 620; including, the inner tube 640 and the outer tube 620, It is formed in a structure wrapped by the side, and the inner tube 640 discharges the powder introduced through the open upper part to the inlet of the moving tank T through the open lower part, and the outer tube 620 has a lower end Is in close contact with the moving tank (T), and provides a powder transport system (600), characterized in that the upper end is connected to the suction device (630).

The loading chute (620,640) (Loading Chute) may be formed in a double structure with an inner tube 640 and an outer tube 620 disposed outside the inner tube 640. The outer tube 620 has a larger diameter than the inner tube 640, and the inner tube 640 may be disposed in the inner space while being spaced apart from the inner surface of the outer tube 620.

The

loading chutes

620 and 640 may have upper ends connected to the conveyor belt 610 and transfer the powder supplied from the conveyor belt 610 to the moving tank T. The mobile tank (T) may be provided in the vehicle (V).

The suction device 630 may be a device that sucks gas by rotating an internal fan. The suction device 630 may be connected to the upper end of the

loading chutes

620 and 640, particularly the upper end of the outer tube 620, and may suck gas present inside the outer tube 620.

The inner tube 640 and the outer tube 620 of the loading chute (620 640) are surrounded by outer surfaces, communicate with the inside, and may be pipes extending in the vertical direction.

The inner tube 640 has upper and lower ends, respectively, an upper end connected to the conveyor belt 610 to receive powder, and a lower end connected to the inlet of the moving tank T. In one embodiment, the lower end of the inner tube 640 may be inserted into the inlet of the movable tank (T).

The outer tube 620 surrounds the inner tube 640 from the outside, and an upper end may be connected to the suction device 630. In particular, the upper end of the outer tube 620 may be connected to the suction device 630 from the outside of the inner tube 640.

The lower end of the outer pipe 620 is in close contact with the movable tank T around the inlet of the movable tank T to prevent dust generated around the inner pipe 640 from being discharged. In one embodiment, the lower end of the outer tube 620 may be formed larger than the inlet to surround the inlet of the movable tank T from the outside.

3 is a perspective view and a bottom view of a loading chute (620 640) according to an embodiment of the present invention.

Referring further to FIG. 3 , a magnetic body 621 generating an attractive force may be disposed at a lower end of the outer tube 620 between the moving tank T and the metal material.

The movable tank T is made of a metal material such as iron or stainless steel, and attraction by magnetic force may be generated between the movable tank T and the magnetic body 621 . The outer tube 620 may be made of a stretchable or deformable material, and a magnetic material 621 may be disposed at the lower end to be in close contact with the movable tank T by magnetic force. The magnetic material 621 may be disposed in a shape surrounding the inlet of the movable tank T from the outside.

The magnetic material 621 is provided in plurality and may be spaced apart from each other in the circumferential direction. That is, since the plurality of magnetic materials 621 are arranged to form a separation space therebetween, the inflow of gas from the outside of the outer pipe 620 may be allowed.

Accordingly, when gas inside the outer pipe 620 is sucked in by the suction device 630, the gas inside the outer pipe 620 can be easily sucked while minimizing a pressure change.

At the lower end of the outer tube 620, a filter 622 formed of a breathable material and allowing external air to flow into the inside may be disposed between the magnetic bodies 621 spaced apart from each other.

Accordingly, it is possible to prevent dust generated between the inner tube 640 and the outer tube 620 from being discharged to the outside of the outer tube 620 .

In one embodiment, the filter 622 may block the movement of fine particles while allowing the movement of gas like the HEPA filter 622 . In another embodiment, the filter 622 may be a flap that blocks gas movement but is movable due to a pressure differential.

The lower end of the filter 622 extends downward more than the lower end of the magnetic body 621, and may be compressed in the vertical direction when pressure is applied.

Specifically, the filter 622 is an elastic material that can be compressed in the vertical direction, and in a state in which no pressure is applied, the height t2 in the vertical direction may be greater than the height t1 of the magnetic material 621, especially the filter 622. The lower end of the 622 may extend further downward than the lower end of the magnetic body 621 .

When the magnetic material 621 is in close contact with the moving tank T, the height of the filter 622 is compressed to the same level as the height of the magnetic material 621, and has a restoring force that expands in the vertical direction by the elastic force, thereby moving the tank (T ) can be adhered to.

4 shows a control sequence of the powder conveying system 600 according to an embodiment of the present invention.

The inner tube 640 may be slidable in the vertical direction between a position where the lower end is connected to the inlet of the movable tank T and a position spaced apart from the inlet of the movable tank T.

In one embodiment, the inner tube 640 can slide upward so that its lower end is spaced apart from the inlet of the movable tank T, and in particular can slide so as to move relative to the outer tube 620.

After the transfer of the powder through the inner tube 640 is completed, the shipment controller 650 for sliding the inner tube 640 upward; may be further included.

The shipment controller 650 may slide the inner tube 640 in the vertical direction. In one embodiment, an actuator, a rail, a gear device, etc. are provided in the inner tube 640 so that it can be moved vertically under the control of the shipping controller 650.

In another embodiment, the outer tube 620 is also provided with actuators, rails, gear devices, etc., so that it can be moved in the vertical direction under the control of the shipping controller 650, and can slide in the vertical direction independently of the inner tube 640. It can be.

The inner tube 640 may slide downward so that the lower end is connected to the inlet of the moving tank T in a state in which the powder is moved therein.

The shipment controller 650, in one embodiment, can stop the operation of the suction device 630 while the powder is being moved into the inner tube 640, and in another embodiment, the inner tube 640 The inhalation device 630 may be continuously operated while the powder is being moved.

The shipment controller 650 may continuously operate the suction device 630 in a state in which the lower end of the inner tube 640 slides upward from the inlet of the movable tank T.

After the movement of the powder through the inner tube 640 is completed, the shipment controller 650 slides the inner tube 640 upward while maintaining the lower end of the outer tube 620 coupled to the moving tank T. can make it The shipment controller 650 continuously operates the suction device 630 while the inner tube 640 slides, thereby continuously inhaling the gas present inside the outer tube 620 to remove dust.

The lower end of the outer tube 620 may be separated from the moving tank T after the operation of the suction device 630 is completed with the lower end of the inner tube 640 sliding upward.

In one embodiment, the outer tube 620 may be controlled by the shipping controller 650, or may be separated from the movable tank T by a separate device or operation.

The shipment controller 650 may stop the operation of the suction device 630 after the sliding of the lower end of the inner tube 640 is completed in an upwardly spaced state from the moving tank T.

The inhalation device 630 may collect powder from gas inhaled from the

loading chute

620 or 640.

The suction device 630 may include a sorter for passing the inhaled gas, and powder included in the inhaled gas may be collected while passing through the sorter. The sorter may be a separate filter through which the inhaled gas passes or a storage device so that dust contained in the inhaled gas is separated by gravity.

Although shown and described in relation to specific embodiments of the present invention, it is known in the art that the present invention can be variously improved and changed without departing from the technical spirit of the present invention provided by the claims below. It will be self-evident to those skilled in the art.

Claims

A loading chute having a shape extending in the vertical direction and having a double structure composed of an inner tube and an outer tube; and

Including; a suction device connected to the loading chute and sucking gas between the inner tube and the outer tube;

The inner tube and the outer tube are formed in a structure surrounded by an outer surface,

The inner tube discharges the powder introduced through the open top to the inlet of the moving tank through the open bottom,

The lower end of the outer tube is in close contact with the moving tank, and the upper end is connected to the suction device.

At the lower end of the outer tube, a magnetic material that generates an attractive force between the moving tank made of metal is disposed,

The magnetic body is provided in plural pieces and is spaced apart from each other in the circumferential direction,

At the lower end of the outer tube, a filter formed of a breathable material and allowing external air to flow into the inside is disposed between magnetic bodies spaced apart from each other,

The filter is characterized in that the lower end extends downward more than the lower end of the magnetic body and is compressed in the vertical direction when pressure is applied.

powder conveying system.
The method of claim 1,

The inner tube is slidable in the vertical direction between a position where the lower end is connected to the inlet of the movable tank and a position spaced apart from the inlet of the movable tank,

After the transfer of the powder through the inner tube is completed, the shipment controller for sliding the inner tube upward; characterized in that it further comprises,

powder conveying system.
The method of claim 2,

Characterized in that the discharge controller continues to operate the suction device in a state in which the lower end of the inner tube slides upward from the inlet of the moving tank,

powder conveying system.
The method of claim 3,

Characterized in that the lower end of the outer tube is separated from the moving tank after the operation of the suction device is completed with the lower end of the inner tube sliding upward.

powder conveying system.
The method of claim 1,

The inhalation device is characterized in that it collects powder from the gas inhaled from the loading chute.

powder conveying system.