JPS6150848B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to an apparatus for three-dimensionally transporting solid materials using a pipe using a liquid such as water as a transport medium.

B. PRIOR TECHNOLOGY Conveyors are currently the most commonly used device for transporting solid materials, but since conveyors transport materials in a straight line, they can be used to transport objects that are damaged, such as mechanical equipment in a factory, or to avoid damage to passageways. It has the disadvantage that it cannot be transported three-dimensionally and freely by bending.

By transporting the solids together with the liquid in tubes, the above-mentioned disadvantages are overcome. For this purpose,
For example, a solids pump having a bladeless impeller rotating an impeller having a spiral passage from the center outward is used, and this type of pump is actually used as a fish transfer pump.

However, since a pump with this structure accelerates the liquid with a rotating impeller, the solid material is more or less damaged when it passes through the pump. In particular, if the impeller spins idly and solid objects temporarily stop inside the impeller, damage to the solid objects increases dramatically. Pumps of this type are therefore in no way capable of conveying solid objects of any kind, but are only used for conveying a limited number of non-perishable or somewhat perishable materials.

The present inventor has developed a device that provides a water tank with a closed structure, arranges this tank at a higher location than a separator, and allows water and fish to flow down from the tank. (Unexamined Japanese Patent Publication No. 1973-
Publication No. 63292) As shown in FIG. 5, this device connects a blower 20 to a water tank 19 with a closed structure, exhausts the air in the water tank 19 with the blower 20, reduces the pressure of the water tank 19 to below atmospheric pressure, The fish are transported by air by inhaling a large amount of air. The delivery side of the water tank 19 is closed with water supplied from the circulation pump 21, and intake air is sucked in through the suction hose 22, and the fish body is sucked together with the air by this intake air.

Also, Japanese Unexamined Patent Publication No. 1983-75094 and Utility Model Publication No. 1983-
Publication No. 32571 discloses a fish lifting device using an air lift pump. These devices suck air or a mixture of liquid and air into the lower end of the fish lifting tube, reduce the apparent specific gravity of the liquid in the fish lifting tube, and suck up and transport the fish along with the liquid. There is.

C. Conventional Problems The device with the structure shown in Figure 5 pneumatically transports fish using a high-speed air flow, but in pneumatic transport, the conveyance medium is faster than in liquid transport, so This method inevitably suffers from the drawback that solid objects such as fish collide with the inner surface of the transfer pipe, causing more damage.

In addition, with a device like this device, which uses air to suck up fish to a high location and then transfer them along with the liquid, the internal pressure of the sealed aquarium is reduced to below atmospheric pressure, and this pressure is used to transport the fish into the aquarium. It varies greatly depending on the condition. Therefore, even if the water tank is placed at a fairly high location, the water does not flow down from the tank with great force, and furthermore, the amount of water flowing down varies depending on the tank pressure.

For this reason, it is necessary to place the aquarium at a considerable height, which makes it difficult to install it easily, and when the pressure of the aquarium at a high place is maintained at approximately atmospheric pressure, the fish may be washed down with great force. However, if the transfer pipe becomes clogged with solid matter in this state, it has the disadvantage that unreasonable water pressure is applied to the solid matter, causing it to weaken.

Now, if the pressure inside the aquarium is reduced to 0.3 atm below atmospheric pressure, the water level in the aquarium will be
It cannot be transferred unless it is installed at a height of 3 meters or more, and it is necessary to install it at a considerably high position.

In addition, air lift pumps, which blow air into the lower end of the fish lifting tube to lift fish, do not allow the fish to pass through the impeller, which rotates at high speed, and use liquid as the transport medium.
Since the fish are transported, damage to the fish during transport can be reduced, but due to the principle of operation, there is a drawback that the conditions of use are limited. In other words, the air lift pump reduces the apparent specific gravity of the liquid in the fish lifting tube by using air blown into the fish lifting tube, and the liquid is sucked in by the water pressure at the lower end of the fish lifting tube. It has the disadvantage that it is inefficient when the water depth at the lower end is shallow, and cannot be transported at all above the lifting height, so it can only be used for lifting fish from a relatively deep position below the water surface to a low position above the water surface.

The present invention obviates the drawbacks of the prior art, namely:
In addition to being able to transport solids three-dimensionally while avoiding obstacles in the factory and passageways of passenger cars, the mixing member can be placed at a relatively low position, and solids can be moved from the mixing member to the separator without excessive force. To provide an air pump type solid matter transfer device which can transport easily-damaged solid matter extremely smoothly without being damaged, and can transport easily-damaged solid matter with less damage.

Furthermore, another important object of the present invention is to provide an air pump type solids transfer device that can be efficiently used for a variety of purposes, with almost no restrictions placed on the placement positions of the mixing member and the separator.

D Means for Achieving the Purpose The air pump type solids transfer device shown in Fig. 1 includes a mixing member 2 in which solids and liquid are stored, and a transfer pipe for transferring the solids and liquid from this mixing member 2. 4, a separator 3 connected to the tip of the transfer pipe 4 for separating solids and liquid,
an air blowing member 5 that injects air into the transfer pipe 4;
A vacuum pump 11 is provided to exhaust the air in the transfer pipe 4.

The transfer pipe 4 is bent in the middle to have a rising part 4a and a descending part 4b between the suction end and the discharge end, and the rising part 4a is the suction side and this is the water surface of the mixing member 2. Below, the descending part 4b becomes the discharge side and is communicated with the separator 3. An air blowing member 5 is disposed at the lower part of the rising part 4a, and the upper end of the transfer pipe is located between the rising part 4a and the descending part 4b. The suction side of the vacuum pump 11 is connected to the suction side of the vacuum pump 11.

E Functions and Effects The air pump type solids transfer device of the present invention has a rising part that is bent in the middle and sucks up liquid;
It has a transfer pipe consisting of a descending part through which the liquid flows,
The apparent specific gravity of the rising part of the transfer pipe is reduced by the air that is injected into the lower part and floats inside the pipe, and the liquid is transferred due to the difference in specific gravity of the rising part, thereby allowing the fish to be transferred smoothly. That is, the energy for liquid transfer is determined by the pressure difference between the rising part and the falling part, and as long as the pressure difference between the two is kept within a certain range, the liquid is transferred at approximately the same flow rate. This means that solids can always be transferred to the liquid at an ideal transfer speed, and even if solids become clogged in the middle of the transfer pipe, there is no need to apply excessive force to the solids and damage them. It minimizes damage during solid material transfer and achieves ideal transfer characteristics.

Furthermore, liquid and solid matter are transferred due to the pressure difference between the rising part and the falling part, more precisely, the difference between the apparent specific gravity of the liquid in the rising part x height and the specific gravity of the liquid in the falling part x height. , Even when conventional air lift pumps are inefficient and cannot be used, i.e., the air blowing position is shallow from the water surface of the mixing member, and the separator is located at a high place compared to this water depth, it can efficiently remove solids without damaging them. Can be transported.

In addition, since the transfer pipe is raised and then lowered, even though the transfer pipe has an air lift pump in a part of it, it is of course efficient even when the mixing member and the separator are at the same level, that is, when the head is zero. Transportable.

For this reason, there are no restrictions on the installation positions of the mixing member and separator, and the mixing member and separator can be placed in the optimal position for the site of use, thereby realizing the advantage that solids can be transferred conveniently and efficiently.

Furthermore, since the solids and liquid are transferred from the mixing member to the separator via the pipe, there are no restrictions on the placement position between the mixing member and the separator. Even if there is an obstruction on the way to the pipe, the piping can be routed to avoid it.

For this reason, in factories etc., avoid obstacles such as walls,
Alternatively, it can be conveniently transported by avoiding the passage of people or cars, or by utilizing wasted space.

Furthermore, in the device of the present invention, air is blown into the lower part of the rising part of the transfer pipe, floats up the rising part, and is evacuated from the upper part by a vacuum pump, thereby creating a pressure difference between the rising part and the falling part. This pressure difference is used to transport solid materials such as fish. According to this system, there is no part for pneumatically transporting the solids, and damage caused by pneumatic transport can be minimized, making it possible to reduce damage to the solids along the entire transfer path.

F Preferred Embodiments Hereinafter, embodiments of the present invention will be described based on the drawings.

The solid material transfer device shown in FIG.
It transports solid materials such as ceramics, synthetic resin products, meat, seafood, fruits, vegetables, potatoes, seaweed, leather sheets, ham, sausages, etc., from a conveyor (not shown) connected to the previous process. , a box-shaped mixing member 2 in which the solids are supplied and a required amount of liquid such as water or seawater, which is a carrier for the solids, is stored; and a mixing member 2 located above the mixing member 2. A separator 3 is provided and to which solids are conveyed through the liquid, and both ends are connected to this separator 3 and the mixing member 2, and the opening end on the suction side is always submerged in the liquid and from there. Mixing member 2 to avoid inhaling air.
The transfer pipe 4 is connected below the water surface and is U-bent in the middle to have a vertical rising part 4a and a descending part 4b, and a lower part of the rising part 4a of the transfer pipe 4. It includes an air blowing member 5 which is arranged and blows air into the upright portion 4a of the transfer pipe, and a vacuum pump 11 connected to the upper end of the transfer pipe 4.

The mixing member 2 is provided at the bottom of the mixing member 2 so that the solids are sucked into the transfer pipe 4 smoothly. It is preferable that the suction opening ends are connected, and that the bottom surface of the mixing member 2 is also inclined downwardly toward the connection point of the transfer gap 4.

Since the liquid in the mixing member 2 is sent to the separator 3 through the transfer pipe 4, the separator 3
When the apparatus includes a separator tank 3a, it is preferable to return the liquid in the separator tank 3a to the mixing member 2. To achieve this, the mixing member 2
and a separator tank 3a with a water return pipe 6 connected to the separator tank 3a.
The liquid in the separator tank 3a may naturally flow into the mixing member 2 through the return pipe 6.

However, as shown in FIG. 1, when the water levels of the mixing member 2 and the separator tank B3a are almost the same, a pump 7 is connected to the water return pipe 6, and the pump 7 also transfers the liquid in the separator tank 3a to the mixing member. 2 will be forcibly returned.

In the present invention, in most cases, the solids are transferred higher than the position from which they are fed, so the separator 3 is usually placed higher than the mixing member 2, or more precisely, the solids are transferred to the transfer pipe of the separator 3. The part where the mixing member 2 is fed is arranged higher than the mixing member 2.

The separator 3 is provided with a solid separation member on the upper side, and the separation member has water permeability that allows the liquid to pass through but not the solids to be transported.

In the separating member shown in FIG. 1, the solid matter separated from the liquid is slid downward by the perforated plate 9 arranged at an angle.

The transfer pipe 4 in FIG. 1 extends above the separator 3, has an air blowing member 5 connected to its lower end on the suction side connected to the mixing member 2, and has an air blowing member 5 connected to its upper end to separate air and water and collect only air. An air separator 13 is connected thereto, and an air suction hole 10 of the air separator 13 is connected to the suction side of a vacuum pump 11 to suck out the separated air.

The air blowing member 5 is connected to the lower end of the upright part 4a, and blows air into the lower end of the upright part 4a. The blown air rises up the rising part and reaches the upper end, where it is separated from water by the air separator 13 and sucked out from the air suction hole 10.

The air blown into the transfer pipe becomes bubbles in the liquid, reducing the apparent specific gravity of the liquid. By the way, if the bubbles are large, they will agitate the water in the transfer pipe and damage the solids, so it is better to make the bubbles small and allow them to rise together with the liquid. To achieve this, as shown in Figure 1, the air outlet holes must be made of a material such as a synthetic resin foam with fine open cells or a metal made by sintering granular metal in an air-permeable state. It is preferable to cover it with a bubble generating member 12.

The present invention does not limit the air blowing member 5 to blowing only air into the transfer pipe 4, but also to blowing a mixture of air and water, and to blowing pressurized water to suck air with a high-speed water flow. including.

2 and 3, a mixture of air and water is blown upward into the lower part of the transfer pipe 4. The mixture of air and water is transferred to the check valve 1 as shown in FIG.
4, an air suction pipe 16 with an air hole 15 for sucking air, and a pressurized water nozzle 17 that injects pressurized water in the axial direction into the air suction pipe 16.
By injecting water from the pressurized water nozzle 17, outside air is taken in from the air hole 15, and a mixture of water and air is supplied to the lower part of the transfer pipe 4.

In FIG. 2, a mixture of air and water is injected upward from an ejector nozzle 18 that penetrates the pipe wall of the transfer pipe 4. In this case, it is also possible to inject only air from the ejector nozzle 18. be.

In FIG. 4, an air suction pipe 16 is connected to the lower part of the transfer pipe 4, and the air suction pipe 16 is opened to the outside air through an air hole 15 interposed in a check valve 14, and is directed from the bottom to the top to supply high-pressure water. A pressurized water nozzle 17 is provided, and by ejecting pressurized water from the pressurized water nozzle 17, outside air is sucked in from the air hole 15 with a high-speed water flow and the air is supplied into the transfer pipe 4.

In the present invention, an air blowing member is provided at the lower part of the upright part of the transfer pipe, but in this specification, the lower part of the upright part is used in a particularly broad sense, and air is blown into the transfer pipe to produce a pumping effect. The location is the bottom of the transfer pipe.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of an air pump type solid material transfer device showing an embodiment of the present invention, FIGS. 2 to 4 are lower sectional views of a transfer pipe showing other embodiments, and FIG. 5 is a conventional solid material transfer device. It is a schematic sectional view of an article transfer device. 2...Mixing member, 3...Separator, 4
...Transfer pipe, 5...Air blowing member, 6...Return pipe, 7...Pump, 8...Net conveyor, 9...
... Porous plate, 10 ... Air suction hole, 11 ... Vacuum pump, 12 ... Fine bubble generating member, 13 ... Air separator, 14 ... Check valve, 15 ... Air hole, 16 ... Air suction pipe , 17... Pressure suction nozzle, 18... Ejector nozzle, 19... Water tank,
20...Blower, 21...Circulation pump, 22...
suction hose.

Claims (1)

[Scope of Claims] 1. A mixing member in which a solid substance and a liquid as a transport medium are mixed; a separator that is disposed apart from the mixing member and separates the liquid and the solid substance that are sent; Both ends are connected to the separator and the mixing member, and the suction side is connected below the water level of the mixing member,
The device itself is bent in the middle between the suction end and the discharge end to have a rising part and a descending part, with the rising part being on the suction side, the falling part being on the discharge side, and the rising part being a mixing member. A transfer pipe whose descending part communicates with the separator, an air blowing member attached to the lower part of the rising part of the transfer pipe to blow air into the rising part of the transfer pipe, and a suction side connected to the upper end of the transfer pipe. The air blown out from the air blowing member reduces the apparent specific gravity of the liquid in the rising part, and the pressure difference between the rising part and the falling part reduces the liquid in the mixing member. Transfer to separator,
An air pump solids transfer device configured to transport solids from a mixing member to a separator via a liquid. 2. The specific gravity of the liquid is lower than the specific gravity of the solids to be transferred, the suction side opening end of the transfer pipe is connected to the bottom of the mixing member, and the bottom surface of the mixing member is sloped downward toward the connection point of the transfer pipe. An air pump type solids transfer device according to claim 1. 3. The air according to claim 1, wherein the separator includes a separator tank, the mixing member and the separator tank are connected via a return pipe, and the liquid in the separator tank flows into the mixing member through the return pipe. Pump-type solids transfer equipment. 4. The air pump type solids transfer device according to claim 1, wherein the separator has a solids separation member on the upper side, and the separation member has water permeability that allows liquid to pass through but not the solids to be transported. 5. The air pump type solid material according to claim 1, wherein the air blowing member has a blowing outlet blocked with a fine bubble generating member, and the fine bubble generating member is a breathable material having countless air passages. Transfer device. 6. The air pump type solid matter transfer device according to claim 5, wherein the microbubble generating member is a foam having open cells. 7. The air pump solids transfer device according to claim 1, wherein the air blowing member blows out a mixture of air and water in the water transfer direction. 8. The air blowing member includes an air suction pipe having an open air port for sucking air through a check valve, and a pressurized water nozzle that injects pressurized water in the axial direction within the air suction pipe, and the pressurized water nozzle Claim 7: Air is sucked into the air pipe by blowing pressurized water into the air pipe, and a mixture of air and water is blown into the transfer pipe.
The air pump type solids transfer device described in . 9. The air blowing member includes an air suction pipe connected to the lower part of the transfer pipe, and a pressurized water nozzle that sprays pressurized water into the air suction pipe, and the air suction pipe has an air hole that sucks air through a check valve. 8. The air pump type solid state air pump type solid state according to claim 7, wherein the pressurized water nozzle is configured to inject water in the water transfer direction, and draw air from the air hole by the injected high-speed water flow. Object transfer device.