JPS6093034A - Solids transport device - Google Patents

Abstract

PURPOSE:To transport solids three-dimensionally without causing damage to them by blowing in liquid mixed with air into a transport pipe, and transporting the solids together with the liquid through this pipe. CONSTITUTION:An energizing ejector 6 is coupled midway of a transport pipe 1, and a mixture of air and water is jetted in the transport direction of the liquid to energize the liquid transported in the pipe 1. The mixture of air and water is prepared by a mixture ejector 2 consisting of an air intake pipe 4, at which an air hole 9 is opened to inhale the air through a check valve 8, and a pressurized water nozzle 3, which sprays pressurized water in the axial direction. This provides three-dimensional transport of solids without causing damage to them, and the device thus embodied will assure less trouble owing to its simple construction.

Description

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

Conveyors are currently widely used to transport solid materials, but conveyors have difficulty lifting objects vertically, except for special cases, and they have many mechanically movable parts, which can lead to breakdowns. Furthermore, there is a drawback that it is not possible to bend the course and, for example, avoid mechanical equipment in a factory and transport it three-dimensionally and in a bent manner.

If you use liquid as the transport medium and transport solids using pipes,
Three-dimensional transportation is possible simply by bending or curving the itK tube. However, in order to move liquid, a pump is always required, and since pumps almost always accelerate the liquid with an impeller, they have the disadvantage that solid objects can be damaged by the pump when they pass through the pump. . For this reason, it is necessary to use a special pump to transport fragile items, and no pump of any kind can completely eliminate damage.

In place of a pump that pressurizes liquid with an impeller, the present inventor has developed a method for transferring liquid by injecting a mixture of air and water in the direction of liquid transfer into the middle of transfer pipe 1, as shown in FIG. device n
We made a prototype. The transfer device f& having this structure injects a pressurized mixture of air and water into the transfer pipe 1, thereby urging the solid mixture in the direction of transfer. Its action is to inject the solid mixture at high speed in the direction of transfer of the solid substance mixture through the transfer pipe 1, so that the kinetic energy of this air and water mixture urges the solid substance and the liquid mixture in the direction of movement.

By the way, the so-called ejector action, in which the kinetic energy of a liquid is injected into another liquid to energize it, is considered to be very ineffective in terms of transportation, but this liquid contains countless particles. A mixed liquid containing air bubbles that urges another liquid is highly susceptible to cavitation, so the efficiency does not decrease, and the ejector effect can be used efficiently. It is generally known that cavitation occurs in liquid ejectors, but almost never in gas ejectors. In addition, the pressurized water that powers the liquid ejector has a higher specific gravity than gas and has a large inertial force at low speeds, so it is theoretically efficient, but in reality, the above-mentioned cavity occurs, resulting in extremely poor efficiency. Therefore, it has been desired that a liquid ejector that does not cause cavitation can be used for a wide variety of purposes.

In particular, even soft and easily damaged solid objects such as fish bodies, hams, sausages, etc., can be transferred without damage by the low-velocity energized pressurized water.

Although gas ejectors may have a flow velocity at or below the speed of sound at the ejection part (they cannot be used with fragile solid materials), they are less likely to cause cavitation than liquid ejectors. This is because it is a compressible fluid. Since liquids are incompressible (though not completely)
Cavitation is likely to occur. A compressible liquid can be created by including numerous air bubbles in the liquid.

Liquid containing air bubbles is compressible, so cavitation can be prevented (1), and even when flowing in the transfer pipe 1 together with (4) solids, it is compressible, so it can be transferred with less water head loss. becomes possible. This phenomenon becomes noticeable in curved portions of the transfer tube or in portions where the diameter of the transfer tube changes and the internal resistance locally increases.

Local pressure increase or decrease phenomena can cause cavitation or increase head loss due to flow, but as mentioned above, by including air bubbles in the liquid, it becomes a compressible liquid, even in the transfer pipe. The head loss is reduced and a very high velocity solids-containing liquid flow can be achieved.

The inventor first connected the moisture ejector 2 directly to the middle of the transfer pipe 1, as shown in FIG.

The pressurized water nozzle 3 of the air mixture ejector 2 is connected to the lower end of the bent transfer pipe 1 and injects pressurized water in the axial direction of the transfer pipe 1. The high-speed water flow jetted from the pressurized water nozzle 3 draws outside air through the air intake pipe 4,
The aerated liquid is blown into the transfer tube. According to this structure, since the mixture ejector 2 is directly connected to the transfer pipe 1,
Although the distance between the air mixture ejector 2 and the air mixture ejector 1 can be shortened, depending on the installation location, the distance between the pressurized water pump 5 and the air mixture ejector 2 is often long, and the distance between the pressurized water pump 5 and the air mixture ejector 2 is The head loss of the piping between the pipes becomes thicker, and is it transferred again? It was necessary to connect piping for pressurized water supply and a hose for air intake to i-1.

As shown in FIG. 1, the inventors separated the air mixture ejector 2 that mixes air into pressurized water from the transfer pipe 1, and as shown in FIGS.
1, the biasing ejector 6 and the moisture ejector 2 are connected by a connecting member 7, a mixture of air and liquid is created in the air mixture ejector 2, and this is transferred to the biasing ejector 6 by the connecting member 7.
We have developed a solids transfer device in which the energized ejector 6 injects a mixture of air and liquid into the transfer pipe 1.

In the solid matter transfer device with this structure, since the moisture ejector 2 is separated from the transfer pipe 1, the distance between the moisture ejector 2 and the biasing ejector 6 becomes long, but the distance between the moisture ejector 2 and the pressurized water pump 5 is shortened. can. Therefore, head loss in the entire pressurized water passage can be reduced. This is because the head loss is reduced by the mixed air between the moisture ejector that transfers the mixed liquid and the energized ejector 6, and the head loss between the mixed air ejector 2 and the pressurized water pump 5 is large. This is because the distance can be shortened.

Therefore, the present invention provides a solid material transfer device that can three-dimensionally transfer solid materials without damaging them, has a simple structure, and is less prone to failure. The purpose of the present invention is to provide an efficient solids transfer device. Moreover, it is sufficient to connect the connecting member for feeding the mixed liquid to the transfer pipe, and it is not necessary to connect both the air pipe and the liquid supply pipe to the transfer pipe. be.

Embodiments of the present invention will be described below based on the drawings.

The solid material transfer device shown in FIG. 1 and FIG. A biasing ejector 6 is connected in the middle of the transfer pipe 1, and the biasing ejector 6 urges the liquid in the transfer pipe 1 with a mixture of air and water that is injected in the direction of liquid transfer. and transport it.

Figure 2 shows the transfer! A biasing ejector 6 is connected to the lower part of 1-1, which blows out a mixture of air and water upward. In this way, if the transfer pipe 1 is in the liquid transfer direction from the bottom to the top in the U'' direction, the solid mixture can be energized by the rising action of the air (8) bubbles in the water.

The mixture of air and water is passed through a check valve 8 as shown in FIG.
The moisture ejector 2 is made up of an air suction pipe 4 having an air hole 9 for sucking air through the air suction pipe 4, and a pressurized water nozzle 3 that injects pressurized water in the axial direction into the air suction pipe 4. This moisture ejector 2 injects water from a pressurized water nozzle 3, sucks in outside air from an air hole 9, and supplies a mixture of water and air to an energized ejector 6 at the bottom of the transfer tube 1.

FIG. 2 shows an energized ejector 6 with an ejector nozzle 10 penetrating the pipe wall of the transfer pipe 1 for discharging a mixture of air and water.
to spray upwards.

As shown in FIG. 2, the biasing ejector 6 is supplied with a mixture of air and water. The mixture of air and liquid is the first
As shown in the figure, it is made of a moisture ejector 2 separated from a biasing ejector 6. The moisture ejector 2 and the energized ejector 6 are connected by a continuous part 7 that can transfer the mixed liquid, and the gas-mixed liquid from which the moisture ejector 2 is made is sent to the energized ejector 6, and the energized ejector 6 is injected into the transfer pipe 1 in the transfer direction of the liquid to force and transfer the liquid, which is a transport medium for the solids.

As shown in FIG. 2, the biasing ejector 6
The type that injects the Takada bubble-containing liquid at an angle toward the center and the transfer direction has a sharp curve in the transfer pipe 1, compared to the type in which the liquid is injected from the pipe wall as shown in Fig. 1. Therefore, when transporting a long fish body, etc., it is possible to transport it in a straight line without damaging bones etc. since it will not be bent.

The solid matter transfer device of the present invention is configured to blow air-mixed liquid into the transfer pipe to convey the liquid and solid matter in the transfer pipe together, so the solid matter is the biggest cause of damage. Because it is transferred without passing through a certain pump's impeller, etc., without any damage, and moreover, it is transferred through a pipe.
The solid material can be transferred three-dimensionally while avoiding obstacles, the structure is extremely simple and no failure occurs, and the energizing ejector for transferring the liquid and the air-fuel mixture ejector are separated, so that both can be transferred. The connecting member communicates with the air-mixed liquid produced by the air mixture ejector, and the connecting member is configured to send the air-mixed liquid to the biasing ejector. Therefore, the distance between the pressurized water pump that supplies pressurized water to the moisture ejector and the humidity ejector can be shortened, and the water head loss from the pressurized water pump to the energized ejector can be reduced. Since air and liquid are transferred using a tube connecting member, there is no need to connect an air pipe to the transfer pipe.
It offers many advantages such as easy connection of air pipes.

(11)

[Brief explanation of the drawing]

1 and 2 are sectional views of a solid material transfer bag ffV showing an embodiment of the present invention, and FIG. 3 is a sectional view of a solid material transfer device showing a conventional example. 1. Transfer pipe, 2. Air mixture ejector, 3. Pressurized water nozzle, 4. Air suction pipe, 5. -10 pressure water pump, 6.
・Biasing ejector, 7...Connecting member, 8...Check valve, 9
...Air hole, 10...Ejector nozzle, (12) Ward 1 Figure 1-1), 2,6 (8) ;, 1 ° 4 1y11□ Play゛No゛

Claims (2)

[Claims] (1) A transfer tube that transfers solids using a liquid as a transport medium, and a mixture of liquid and air that is injected into the transfer tube in the direction of liquid transfer in order to urge the liquid in the transfer tube in the transfer direction. and a moisture ejector that sends a mixture of air and liquid to the biasing ejector, the mixture ejector and the biasing ejector being separated and connected via a connecting member, The liquid mixed with the air mixture ejector is sent through the connecting member to the biasing ejector, and the biasing ejector injects a mixture of air and liquid into the transfer pipe to urge the liquid in the transfer pipe in the transfer direction. 1. A solid material transfer device, wherein the solid material transfer device is configured to move the solid material by applying force to the solid material. (2) The air mixture ejector includes an air intake pipe with an open air hole for sucking air through a check valve, and a pressurized water nozzle that injects pressurized water in the axial direction within the air intake pipe. The solid matter transfer device according to claim 1, wherein air is sucked into the air suction pipe by blowing pressurized water from the pressurized water nozzle, and a mixture of air and water is sent to the injection member.