JPS6181321A - Solid matters transfer device - Google Patents

Abstract

PURPOSE:To enable solid matters to be transferred without being damaged by providing a communication passage, between the ejection side including the casing of a rotary type pump for transferring solid matters and the inlet side thereof, via a fitting means allowing passage of any liquid cut inhibiting that of any water insoluble solid matter. CONSTITUTION:A filtering means 16 allowing passage of any liquid but inhibiting that of any water insoluble matter (e.g. soft solid matters such as ham, sausage, broiler etc. farm products such as orange potato etc. and fish) is connected to the ejection side, including the casing 15, of a transfer pump 13. This filtering means 16 is connected to the inlet side of the transfer pump 13 via a return flow passage 22, and even if solid matters of high concentration are absorbed in the inlet side, the solid matters can pass through the inside of the transfer pump 13 because the concentration thereof passing through the inside of the transfer pump 13 is reduced due to the liquid returned to the inlet side from the ejection side of the transfer pump 13 through the filter means 16 and the return flow passage 22.

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention is primarily concerned with fragile and delicate solid materials,
For example, fresh fish, ham, sausage, broiler chicken, potatoes,
This invention relates to a solid material transfer device that transfers fruits such as oranges and liquids to a conveying medium with high efficiency.

B. Prior Art For solid material transfer devices, especially for solid material transfer devices that are flexible and easily damaged, it is extremely important to minimize damage sustained during solid material transfer. It is also extremely important to have a high transfer capacity so that a large amount can be transferred in a short period of time.

Currently, devices for transferring solids using liquid as a transport medium are
Broadly speaking, two types are used.

Representative examples are shown in FIGS. 3 and 4.

By the way, the solid material transfer device of the present invention is for transporting easily damaged solid materials without damage, but since fish is a solid material that is particularly easily damaged, fish will be explained below as an example. . A transfer device that can transfer solid materials without damaging them can further reduce damage during transfer of solid materials.

The solids transfer device shown in FIG. 3 is a type pump, and this type pump is a centrifugal rotary fish pump incorporating a bladeless impeller 1 having a spiral flow path therein. This type of pump is installed on a fishing boat, and sucks live fish collected with a net together with seawater through a suction pipe 2 such as a suction hose, and pumps them through a discharge pipe 3. Seawater and fish bodies are separated by a drainage separator 4 equipped with a perforated plate provided at the end of the discharge pipe 3, and the fish bodies are stored in a fish tank and immersed in water ice cooled by crushed ice for cold storage. .

(referred to as the water ice method) This type of rotary type pump is often used for suctioning and transporting live fish in nets into tanks.
! Currently, it is not used for transporting stored fresh fish from the fish tank to the land-1 quay. The process of landing fish from a fish tank involves reducing the pressure inside the sealed tank with a vacuum pump, sucking in the fish together with cold water, and then forcing pressurized air into the tank to expel the ice cubes. A static displacement type pump is used.

The reason is that when inhaling live fish, which may be caught in a net in the sea,
Even when the net is closed, a large amount of seawater is inhaled, and the concentration of colored water (the ratio of fish to water) is low, and the amount of seawater is large compared to the amount of fish, so it is difficult to remove fish when they pass through the fish pump. Although it is unlikely to cause any damage, when fresh fish in a fish tank is transported ashore, the concentration of ice cubes in the tank is extremely high and can damage the fish.

A rotary fish pump sucks up highly concentrated ice cubes,
Fish are damaged when passed through the pump due to the following reasons: First of all, there may be friction between the fish bodies. When the ice cubes are discharged from the passage inside the impeller into the casing, the speed difference between the speed of the ice cubes inside the casing passage and the speed of the ice cubes around the outer circumference of the impeller causes the fish bodies to rub against each other, causing scales, etc. It may cause peeling or damage to the epidermis.

Next, the only way to adjust the discharge amount of a centrifugal rotary fish pump is to adjust the rotation speed. If the density of surplus water in the fish tank is lowered and the fish pump sucks up this water (increasing the water by the ratio of ice cubes), there will be less damage caused by fish bodies rubbing against each other in the fish pump, and the amount of fish transferred will be reduced. However, it is very difficult to adjust the density of leftover water in a large-capacity fish tank, and even if the density of leftover water in a fish tank can be lowered, it will temporarily However, it is impossible to always inhale fish at a concentration below a certain level.

When a centrifugal rotary fish pump operates to lift fish at a constant pumping height, damage to fish bodies increases even if the rotation speed is lowered too much or raised too much in order to adjust the discharge amount.

If the rotation speed is lowered too much, the impeller will not be able to accelerate the liquid sufficiently and a slip phenomenon will occur, resulting in an extremely slow transport speed of fish passing through the suction pipe and the impeller, which will reduce the speed at which the fish is discharged from the impeller into the casing. It's also late. For this reason, the fish stay inside the casing for a long time, and the fish are damaged due to friction between the fish bodies. If the rotational speed is further reduced, the pumping action will stop and the ice cubes in the casing will no longer be discharged.

If the impeller rotation speed is increased too much, not only will the fish rub against the pipe walls as they pass through the suction and discharge pipes, but there will also be friction between the inner walls of the casing and between the fish bodies inside the fish pump casing. Damage occurs due to severe rubbing. Furthermore, if the rotational speed is further increased, the head loss due to the increased speed in the suction and discharge pipes will increase, increasing the overall required head17, and increasing the slip phenomenon in the impeller, which will damage fish. .

As a transfer device that eliminates the drawbacks of the rotary Nikura pump, a static displacement type fish pump shown in FIG. 4 has been put into practical use. This fish pump is often used when unloading highly concentrated fresh fish from the fish tank 5 to a fishing port quay or the like.

The fish pump shown in FIG. 4 sucks the ice cubes in the fish tank 5 into the closed tank 7 by sucking air into the closed tank 7 through the four-way switching valve 8 and reducing the pressure using the vacuum pump 6. A level sensor 9 provided in the sealed tank 7 detects that the ice cubes are full and switches the four-way switching valve 8 to the position indicated by the dotted line. Vacuum 7 donbu 6 sucks the atmosphere and seals tank 7
Pressurized air is injected into the closed tank 7, and the ice cubes sucked up into the closed tank 7 are transferred to the draining cenogulator 4 via the H2 outlet pipe 3.

Ice cubes are separated by a colander 4 having a built-in porous filter 10. In this fish pump, the check valve 11 on the discharge side is closed during the suction process in which the airtight tank 7 is depressurized, and the reverse +1-valve 12 on the suction side is opened, and in the discharge process in which the airtight tank is pressurized. In this case, the check valve 12 on the suction side is closed, and the check valve 11 on the discharge side is opened.

This fish pump can significantly reduce damage to the fish body when it passes through a closed tank, but when switching from suction to discharge, and from discharge to suction, the check valves 11 and 12, which were open, close. Therefore, there is a drawback that when the valve is closed, the fish body is caught and injured. Since the ice cubes in the fish tank 5 are highly concentrated, when the check valves 11 and 12 are closed, several fish bodies are almost always caught, and some are completely cut off. It is.

In addition, this D4t'bu uses a vacuum pump 6, which is known as a relatively inefficient pump, to pressurize air into the sealed tank 7 and exhaust it to move the ice cubes. Inhalation from the suction tube 2 will not start unless a vacuum is created.

In addition, when the lower limit level is reached during discharge, the next process of suction cannot proceed unless a large amount of the highest pressure air is discharged into the atmosphere, resulting in extremely poor energy efficiency and Transfer over a large amount of time cannot be achieved.

Furthermore, it is not discharged during the suction process, but is inhaled during the discharge process, and is a batch type discharge.
Continuous transfer operation is not possible unless the device is equipped with multiple devices, so the device is extremely large and difficult to equip on small fishing boats.

A static displacement type square pump can handle relatively soft fish such as sardines with a length of 20 cm or less at a color water concentration of 70% (
It is possible to directly boil and fry the fish without any damage when the fish body is 70% water and 30% water.

In this way, when sucking up fish from the very highly concentrated fish tank 5, even if the sealed tank 7 is under a high vacuum, the velocity inside the suction pipe 2 will change due to the friction loss (head loss) between the ice cubes and the pipe wall. It is not very fast, usually around 1m/sec.

In this way, if ice cubes are directly sucked up with a conventional rotary fish pump (solids transfer pump) in a state of high black water concentration, a slip phenomenon will occur inside the pump, causing the pump to Not only is the fish unable to function properly, but the fish itself is damaged to the point that it cannot retain its shape inside the pump.

C1 Objective of the present invention An important objective of the present invention is to provide a rotary type solid material transfer device that is highly efficient, capable of transferring a large amount of solid material in a short time, and is inexpensive, instead of using the inefficient large-capacity static displacement type transfer device. By using a transfer pump, it is possible to use the product in a state with a high concentration of solids, thereby expanding the range of use for multiple purposes.

In addition, an important purpose of the present invention is this bladeless,
Using the non-clog type rotary solids transfer pump, solids that do not dissolve in water, such as flexible solids such as pork, sausages, and broilers, and agricultural products such as oranges and potatoes, can be transferred along with water without damage. This paper proposes a solid material transfer device.

D. Means for achieving the object The discharge side, including the casing, of a rotary solids transfer pump and the suction side are communicated with each other via filter means through which liquids but not solids pass.

51 Operation The liquid separated from the solids on the discharge side of the rotary solids transfer pump is supplied to the suction side of the transfer pump. Therefore, even if the suction pipe of the transfer pump sucks in solids at a high concentration, the concentration of solids passing through the transfer pump is limited to a low level, and the solids pass through the transfer pump without being damaged. The larger the amount of liquid supplied to the suction side of the transfer pump, the greater the decrease in solids concentration within the transfer pump, and the more solids at high concentration can be transferred entirely. The liquid supplied to the suction side of the transfer pump allows the transfer of highly concentrated solids that could not be transferred using conventional rotary solids transfer pumps.

Even if a liquid is supplied to the suction side, a rotary solids transfer pump can transfer solids more efficiently than a vacuum tank type solids transfer pump, and can transfer a large amount of solids in a short time. The overall size is compact and it can be conveniently installed in places where installation space is extremely limited, such as on fishing boats.

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

The solids transfer apparatus shown in FIG. 1 includes a rotary solids transfer pump 13. In the transfer pump 13, as shown in FIG. 1, a bladeless impeller 1 having a spiral liquid passage 14 rotates within a casing 15.

The spiral liquid passage 14 is opened in the axial direction at the center of the impeller opposite to the inlet of the casing 15, and gradually spirals in the radial direction from left to right in FIG. It is curved and has a tangential opening at the outer periphery of the bladeless impeller.

A filter means 16 is connected to the discharge side of the transfer pump 13 . The filter means 16 includes, on the discharge side of the transfer pump 13, a cylindrical filter material 17 having the same diameter as the discharge pipe 3, and a casing 18 that watertightly surrounds the outer periphery of the filter material 17 so as to completely separate only the liquid. Equipped with

The filter material 17 has one end of the cylindrical shape (the left end in FIG. 1).
is on the discharge side of the transfer pump 13, 9JL 6G is on the discharge pipe 3
It is connected to the solid material draining separator 4 via. Furthermore, this filter material 17 is a plate material having water permeability that cannot pass the solids sent by the transfer pump 13 but allows the liquid to pass therethrough, such as a perforated plate or net 115 in which a large number of holes or slits are bored in the plate material. ] Material is used.

The casing 18 is provided with a removable lid 19 so that the filter material 17 inside can be inspected, and a drain port 20 for the separated liquid is opened. 'Filter means 1
6 is preferably closely connected to the transfer pump 13. Therefore, the discharge side of the filter means 16 is connected to the long discharge pipe 3.
and connected to the drain separator 4.

The drain port 20 of the filter means 16 is communicated with the suction side of the transfer pump 13 via a return channel 22 with a water supply valve 21 interposed therebetween. The return waterway 22 is connected to a water supply chamber 23 provided on the suction side of the transfer pump 13.

The water supply chamber 23 is closely connected to the suction port of the transfer pump 13, and is partitioned by a filter tube 24 through which solid matter does not pass from the suction pipe 2 but liquid passes therethrough.

In the solid matter transfer apparatus shown in FIG. 1, a part of the discharged liquid is separated by a filter means 16 on the discharge side of the transfer pump 13, and this is supplied to the suction side of the transfer pump 13. The pressure on the discharge side of the transfer pump 13 is higher than that on the suction side, and the liquid separated by the filter means 16 passes through the water supply valve 21.
and is drawn into the suction side of the transfer pump.

When the opening degree of the water supply valve 21 is increased, a large amount of water is supplied from the filter means 16 to the water supply chamber 23 on the suction side of the transfer pump; The amount of water sent to the side is reduced.

In this way, the solids transfer device that can adjust the amount of water sent from the filter means 16 to the suction side of the transfer pump 13 can be operated optimally depending on the application while the bladeless impeller of the transfer pump 13 is operated at a constant rotation speed. solids can be transferred to the state. That is, when the transfer pump 13 transfers particularly highly concentrated solids, the opening degree of the water supply valve 21 is increased to increase the amount of water supplied from the filter means 16 to the suction side to prevent damage to the solids. do.

When sucking up fish from the sea with low solids concentration,
The water supply valve 21 is throttled to the extent that the fish are not injured, and the fish are transferred with high efficiency. Furthermore, in order to stop the transfer of solids while the transfer pump 13 remains in operation, the water supply valve 21 is fully opened.
The same amount of liquid as transferred by the transfer pump 13 is transferred to the filter means 1.
6 to the suction side of the transfer pump. Transfer pump 13
I drove all the way! ! A solids transfer device that can stop transferring solids at any time does not require the operation of the transfer pump to be stopped when the transfer is stopped. Therefore, it is possible to prevent scratches due to a drop in rotational speed when restarting the transfer pump, and the startup time can be significantly shortened.

The same opening degree (orifice) due to the pressure difference between the side and discharge side
However, the amount of circulating water that passes through it changes. This is very convenient because the higher the head, the more the pressure difference between the suction side and the discharge side increases, and the amount of circulating water increases. That is, the higher the head, the more likely the transfer pump 13 is to cause a slip phenomenon, and the slip phenomenon causes the transferred object to remain in the pump for a long time, causing damage.
In this case, the amount of circulating water increases and acts to dilute the transferred water, so the damage prevention effect is automatically activated. However, if the head of the transfer pump increases,
It is also possible to prevent the slip phenomenon by increasing the speed to the most appropriate rotational speed for that lift.

In addition, if a constant flow valve is used for the water supply valve 21, the head loss will change due to changes in the head or the concentration of solids sucked in, and the pressure difference between the inflow side and the outflow side of the water supply valve 21 will change. Even if the flow rate of circulating water changes, it can be set to a constant circulating water flow rate. this is,
The transfer amount does not change due to changes in lift height or transfer concentration, making it suitable for applications where it is desired to transfer a fixed amount within a unit time. When using this constant flow valve, the rotation speed of the transfer pump 13 can be changed to match the flow rate and head.

As shown by the chain line in FIG. 1, it is also possible to connect the booster pump 27 to the return waterway in series with the water supply valve 21. By sending pressurized water to the water supply valve 21 and restricting the flow rate by the water supply valve 21, the booster pump 27 can be given constant flow characteristics instead of the constant flow valve described above.

Although not shown, if a constant flow pump such as a volumetric pump is used as the booster pump 27, it is also possible to replace it with a constant flow valve. In this case, a water supply valve is not required.

The flow rate of the return waterway 22 can be adjusted by using the water supply valve 21 to adjust its opening and select various usage methods. A water supply valve is necessary when there is no need for adjustment, such as when performing suction or pressure-feeding operations.

That is, the orifice (cross-sectional area of the flow channel) of the circulating water circuit extending from the filter means 16 to the water supply chamber 23 may be set to an appropriate value in advance.

In this case, the pressure difference between the suction side and the discharge side of the transfer pump 13 is constant, the required flow rate flows through the circulation channel, and the solids concentration in the transfer pump 13 is diluted compared to the solids concentration of the transfer water stream. It is possible to aspirate and pump solids in concentrated transfer water without damage.

In the solid matter transfer device shown in FIG. 2, the filter means 16 is
It is also used as a drain separator to separate solids and liquids. This filter means 16 is located at the tip of the discharge pipe 3.
It consists of a filter material 17 disposed on a downward slope and a casing 18 disposed below the filter material 17 with an upward opening. A drain port 20 is opened at the bottom of the casing 18 , and the drain port 20 is connected to the suction side of a return water pump 25 . The discharge side of the return water pump 25 has two branches,
One branch path is connected to the transfer pump 13 via the water supply valve 21.
Another branch of the water supply chamber 23 on the suction side is connected to the fish tank 5 via a return water valve 26 .

In this device, since the filter means 16 also serves as a drain separator, the drain separator for separating solids from liquid can be omitted.

Compared to the device shown in FIG. 2 in which the filter means 16 also serves as a drain separator, the transfer pump 13 shown in FIG.
The solid material transfer device in which a watertight filter means 16 that is not exposed to the atmosphere is connected near the discharge side of the solid material has the following features.

That is, in the solids transfer device shown in FIG. 2, a large amount of liquid is transferred at a high flow rate throughout the discharge pipe 3, so the head loss in the discharge pipe 3 is large, and the transfer pump 13 has a high discharge head. Also, if the filter means 16 contains countless air bubbles inside the 1-piece casing 18, the transfer pump 13 will run idly and the solids will be easily damaged. There is a risk of damage.

The head loss of the solids transfer devices shown in FIGS. 1 and 2 will be compared with the transfer pump sucking up and transferring fish from a fish tank.

The water loss @H in the pipe is: φ 2g frj L, ) is the pipe friction coefficient determined by the material of the pipe and the viscosity of the transferred water, L is the length of the pipe, φ is the inner diameter of the pipe, ■ is the flow rate , g is the gravitational acceleration.

Now, suppose water and fish are inhaled from the suction pipe 2 at a ratio of 1:1, and from the return channel 22, 2 for a total of 2 of water 1 and fish 1.
If water is supplied to the suction side of the transfer pump 13,
Table 1 shows the condition of the discharge pipe 3 between the drain separator 4 and the filter means 16 of the apparatus shown in FIGS. 1 and 2.

From the equation in Table 1, the head loss H is proportional to the flow rate ■2, so if λ is constant, the discharge pipe 3 of the device shown in FIG. 2 has a loss four times that of the device shown in FIG. Generates a water head.

By the way, the concentration (ice cube ratio) of fresh fish treated with water ice in a fish tank is usually higher as the fish body is smaller and higher as the fish body is more flexible. Therefore, compared to hard fish bodies that have undergone rigor mortis such as large horse mackerel, large horse mackerel, and yellowtail that are over 30 cIrL, soft fish bodies that are less than 20 cIrL and are less fresh will inevitably form lumps at the bottom of the fish tank and have a high concentration. It becomes.

Z 4+ + If you actually pump fish and measure the amount of fish and water, the concentration in the fish tank will be about 30%, although it may seem very sudden.
The highest concentration of water is around 70%.

The water ice method, which is a method of keeping fish fresh, involves mixing crushed ice and water, immersing fresh fish in cold water, and exchanging heat with the fish to cool it down. This is due to the action of applying water pressure evenly so that it does not lose its shape. Therefore, it is not preferable to fill the fish tank with too high a concentration, and even if the concentration of fish is too low, it is inefficient and uneconomical. Usually 20
It is 50 to 60% in the case of small-sized horses with c1n or less, and 35 to 50% in the case of horse mackerel and zabate of about 3° to 40 crn, and on average it is about 50%.

The human values for the device shown in Figures 1 and 2 are 25% and 5%.
It changes slightly depending on the difference in ice cube concentration from 0%. At a high concentration of 50%, the value of λ is higher than at a 25% ice cube concentration, but the difference is small and can be considered to be almost the same if the material of the discharge pipe is the same.

In order to double the total transfer amount within the headship time, the value of the flow velocity V will be doubled and v2 will be quadrupled, so the change in the transfer velocity V will have a large effect on the head loss. The transfer device shown in Fig. 1 can of course be used to transfer fish with small power, and since the required water head is small, there is less slippage inside the transfer pump 13, and since it can be operated at a low rotation speed, there is less damage to fish bodies. .

The larger the amount of circulating water compared to the transferred water (transferred water), the
Although the concentration of ice cubes in the transfer pump 13 is reduced and the damage to the fish body is small, it is usually best to supply the same amount of water as the amount of water to be transferred. Therefore, it is appropriate that the pipe diameter of the return waterway 22 is also the same as the diameter of the transfer pipe.

Therefore, the transfer device shown in FIG.
In addition to minimizing damage by allowing the transferred substances to pass through at a low concentration within the suction pipe 2 and the discharge pipe 3,
The high concentration and low speed transfer minimizes the head loss L-, which saves energy and also minimizes damage to transferred objects.

In addition, in the transfer device shown in Fig. 2, the pipe of the return waterway 22 needs to have the same diameter and the same length as the discharge pipe 3, and if the pipe is long distance,
As shown in the figure, a return water pump 25 is required. When the amount of circulating water is insufficient due to the head from the casing of the filter means 16 and 18 or the suction negative pressure from the solids transfer pump, the return water pump 25 supplies pressurized water to the suction side of the transfer pump 13.

Furthermore, in the transfer device shown in FIG. 2, since the transferred water is once released to the atmosphere by the casing 18 of the filter means 16,
This results in water containing air bubbles, which causes air to be supplied from the casing 18 of the filter means 16 to the transfer pump 13, stopping the pump function and damaging the solid material. When air is sucked into the transfer pump 13, it remains as an air mass in the center of the impeller, and only the water receives centrifugal force and is blown out against the inner wall of the casing 15, so the pump action stops and a slip phenomenon occurs. This causes extreme damage to solid materials. In this respect, the transfer device shown in FIG.
No air is mixed into the suction side of No. 3.

In the solid material transfer apparatus shown in FIG. 5, a filter means 16 connected to the middle of the discharge pipe 3 of the transfer pump 13 is formed in a cyclone shape.

The filter means 16 has a casing 18 which is vertically cylindrical as a whole and whose lower part is tapered downward, and the discharge pipe 3 is located at the bottom of the casing 18 and in the tangential direction at the upper part. A filter material 17 whose lower end is closed is disposed in the portion, and the inside of the filter material 17 is watertightly communicated with the return channel 22.

As shown in this figure, the discharge pipe 3 on the outflow side connected to the drainage separator 4 and connected to the bottom of the casing 18 is used to transfer solids that are heavier than water.

The corner that has flowed into a part of the casing 18 in a tangential direction sinks while rotating spirally along the outer circumferential inner wall of the casing 18, and is forced into the discharge pipe 3 from the discharge port 28 at the lower end.

Since water flows tangentially along the surface of the filter material 170, it is possible to prevent foreign matter such as fish bodies and fish scales from adhering to the surface of the filter material 17.

When transferring solids that are lighter than water, the filter means 16 shown in FIG. 5 may be placed upside down.

The solid matter transfer device shown in FIG. 6 includes a filter means 16 for washing away impurities adhering to the filter material 17.

In the filter means 16 connected in the middle of the discharge pipe 3, the water chamber formed between the filter material 17 and the casing 18 is divided into two into an ice chamber and an ice chamber B. B are mutually connected to the return waterway 22 via water control valves 29A and 29B, which are side flow members.

By alternately closing either one of the water control valves 29, the filter means 16 can be operated by filtering the filter material 17 while the water control valves 29 are closed.
Clean the surface of the tank by rinsing away fish and other debris that have adhered to the surface with the transfer water flow in the direction of discharge.

That is, when the water control valve 29B is open and the water control valve 29A is closed,
Water is sampled through the filter material 17 of ice room B, during which time,
Transferred substances and foreign substances adhering to the surface of the filter material 17 in the ice chamber A are washed away by the transfer flow.

Water control valve 29A with a timer (not shown).

By repeatedly switching 29B alternately, for example every few seconds to several tens of seconds, the surface of the filter material 17 can be cleaned during closure.

FIG. 7 and FIG. 8 show a filter means 1 including a side flow member 30 for removing impurities adhering to the surface of the filter material 17.
6 is shown. This filter means 16 has a filter material 17 formed in a cylindrical shape, and the side flow member 30 has a filter material 17 formed in a cylindrical shape.
The inner diameter of the filter material 17 rotates along the surface of the filter material 17.
It is formed into a cylindrical shape somewhat larger than the outer diameter of the chain wheel 31, and chain wheels 31 are fixed to both ends.

A drive shaft 3 is provided in the casing 18 in parallel with the filter material 17.
2 is supported, and a chain wheel 33 is also fixed to the drive shaft 32, and the drive shaft 32 and the chain wheels 31, 33 of the side flow member 30 are connected by a chain 34. The drive shaft 32 is connected to a deceleration motor 35 and driven to rotate.

By rotating the side stream member 30, 't)l
Water holes 37 that are not continuous in the rotational direction are opened so as to partially block the filter material 17 or open partially into the ice chamber 36 .

In this filter means 16, when the side flow member 30 is slowly rotated, the opening of the filter material 17 to the water chamber 36 is moved, and a part of the filter material 17 is closed to remove attached foreign matter. Remove.

Furthermore, the filter means 16 shown in FIGS. 9 and 10 has a sidestream member 30 fixed to the casing 18,
The filter material 17 located outside rotates. Therefore,
A chain wheel 38 is fixed to both ends of the filter material 17, and the chain wheel 38 is connected to the drive shaft 32 via a chain 34.

The side stream member 30 includes a filter material 17 as shown in FIG.
Water passage holes 37 are opened that are not continuous in the rotational direction.

In the filter means 16 having this structure, a part of the filter material 17 whose inner surface is completely closed by the side flow member 30 is washed with the transferred water.

Furthermore, filter means 16 shown in FIGS. 11 and 12
The filter material 17 has a grid shape with parallel slits,
A sidestream member 30 slides between the grids of filter material.

The lattice spacing of the filter material 17 is determined to be such that no solid matter can pass therethrough, and is elongated in the axial direction.

As shown in FIG. 11, the side flow member 30 is formed to be shorter than the slits between the lattices so as to partially block the lattice filter material 17, and as shown in FIG. It has a lattice-like protrusion 39 that is fitted inside and moves along it.

Further, the side flow member 30 is moved from the -1- side to the drive rod 4 so that it is moved along the slit of the filter material 17.
0, and a guide 42 through which a slide rod 41 is slidably inserted is fixed on both sides of the lower part.

The drive rod 40 is connected to the casing 18 of the filter means 16.
is passed through the filter material 17 in a watertight manner so as to be freely movable in the axial direction, and both ends thereof are fixed to the rod tip of the power cylinder 43.

Moreover, the slide rod 41 is 1. The sidestream member 30 is disposed in the casing 18 parallel to a drive rod 40 along which the sidestream member 30 is reciprocated in parallel by a power cylinder 43 .

Sidestream member 3 moving along the slit of filter material 17
No. 0 closes a part of the filter material 17 and removes adhering substances and foreign matter with the transfer flow, and also cleans the gaps in the grid-shaped filter material 17.

Furthermore, the filter means 16 shown in FIG.
(10) Fin elements 84 for cleaning the slits of the grid-like filter material 17 are fixed to both ends.

This side flow member 30 has a cylindrical shape that is shorter in overall length than the filter material 17 and is movable in the axial direction along the outer circumference of the filter material 17, and has a water passage hole 37 opened in a portion thereof.

As shown in FIGS. 13 and 14, the fin element 44 is provided with a gear-shaped protrusion 45 on its inner peripheral edge that can fit into the slit of the filter material 17 and move along the slit. , itself is fixed to the 7 flange of the sidestream member 30.

Similar to the side stream member 30 shown in FIGS. 11 and 12, the side stream member 30 having this shape is also moved in the axial direction along the filter material 17, and removes transferred objects and clamps that adhere to the surface of the filter material 17. Eliminate miscellaneous items.

j8 5) Figure 15 shows a filter means 16 in which two sets of sidestream members 30 move together along the filter material 17. As shown in FIG. 16, this side flow member 30
The inner peripheral edge is provided with a protrusion 39 that is fitted into the slit and moves along the slit.

Both flow control members 30 are entirely formed in a cylindrical shape, and drive pins 46 protrude in the radial direction from both sides.

The drive bin 46 has a drive frame 47 formed in a horseshoe shape.
It is inserted into the lower end 4g48. The drive frame 47 has two
The pieces are integrated at regular intervals and fixed to the drive rod 40.

The drive rods 40 are disposed parallel to each other above the filter material 17 and slidably pass through the casing in the same way as the drive rods in FIG. 11.

If some play is provided between the drive bin 46 and the recess 48 of the drive frame 47 so that the sidestream member 30 can rotate to some extent, the sidestream member 30 can slide smoothly along the slit of the filter material 17. .

As shown in FIG. 15, the filter means 16 separates a plurality of sidestream members 30 in the axial direction of the filter material 17 and moves them as a unit. The entire surface of the filter material 17 can be cleaned, and the area of the closed base of the filter material 17 can be reduced to widen the water passage area.

The slits of the filter material 17 formed in a grid shape are the first
As shown in FIG. 7, if the slits are widened in the direction in which the liquid passes, the slits can be effectively prevented from being clogged with foreign objects.

In the solid matter transfer device shown in FIG. 18, a filter means is integrated within the transfer pump 13. The casing of the filter means is attached to the casing of the transfer pump 13, and the discharge side and suction side in the Kerung 15 are connected to a return channel 22 so that a part of the liquid sent out by the bladeless impeller 1 is sent to the suction side. The filter material 17 is stretched over the return waterway 22 .

The filter material 17 is formed into a cylindrical shape that is larger than the intake port of the bladeless impeller 1 and has a diameter approximately equal to the outer periphery of the impeller. It is arranged as follows. A cylinder 49 is fixed coaxially inside the filter material 17, and one end of the cylinder 49 is opened to the water supply chamber 23, and the end of the cylinder 49 is opened to correspond to the suction port of the impeller.

Ice chamber 36 formed between cylinder 49 and casing 15
A drain port 20 is opened, and the drain port 20 is communicated with a water supply chamber 23 via a return channel 22 with a water supply valve 21 interposed therebetween.

The solids transfer device having this structure is very compact because the filter means is built into the transfer pump.

Also, a filter material 1 is placed inside the casing 15 of the transfer pump 13.
7, it is possible to prevent impurities from adhering to the filter material 17 due to the high-speed swirling flow.

By the way, in this specification, filter means shall be interpreted in a particularly broad sense, and shall mean all parts through which solid matter cannot pass through, but through which liquid can pass.

Furthermore, the solid matter transfer device shown in FIG.
A vacuum pump 50 for self-priming of the transfer pump is connected, and a check valve 51 is connected to the discharge pipe 3.

The water supply chamber 23 extends upward to form an airtight vacuum chamber 52, and the vacuum chamber 52 is connected to the suction side of a water ring type vacuum pump 50 via a check valve 53.

This solids transfer device operates a vacuum pump 50 to reduce the pressure of the suction pipe 2, transfer pump 13, filter means 16, that is, the entire 16-hole pipe on the suction side from the check valve 51 of the discharge pipe. , the vacuum pump 50 is operated independently until the vacuum chamber 52 is filled with water. Thereafter, the transfer pump 13 is operated while the vacuum pump is operated, and self-priming operation is performed while discharging the air remaining in the suction pipe 2. When the air is completely exhausted and normal operation is resumed, the vacuum pump 50 is stopped.

A check valve 53 between the vacuum pump 50 and the vacuum chamber 52 prevents atmospheric air from being sucked in when the vacuum pump 50 is stopped.

The air supply cock 54 is used for sucking outside air into the suction pipe 2 and discharging water in order to facilitate the work of lifting the suction pipe 2 after the fish frying work is completed.

The present invention does not limit the type of rotary solids transfer pump; for example, a non-clog type rotary solids transfer pump can be used instead of a bladeless rotary pump.

G. Effects By implementing the solid matter transfer device of the present invention, the scope of use of the rotary solid matter transfer pump has been dramatically expanded, and it has become possible to use it for multiple purposes. or,
It can be used in a more efficient operating state than a static displacement type solids transfer device, and damage to the transferred material is greatly reduced.

In other words, if the transferred material stored in the fish tank in an extremely high concentration state, such as when landing fresh fish, is passed through a conventional transfer pump as it is, the heladros in the suction pipe and discharge pipe will be extremely high. However, the solid material of the present invention was completely unusable due to excessive scratches due to friction caused by the difference in speed of the transported material within the transfer pump casing. The transfer device minimizes head loss by transferring at extremely low speed through the suction pipe, where only high concentrations can be lifted, and the concentration is diluted by water supply through the water supply valve before being sucked into the transfer pump. It is now possible to instantly pass through the transfer pump at high speed without slipping, and to transfer solid materials without damaging them.

A static displacement type solids transfer device is capable of inhaling and discharging highly concentrated fish in a tank without any damage, but fish bodies may be caught in the check valve that opens and closes when inhaling and discharging, resulting in a loss of several percent. Not only does it damage the fish body, the equipment is large, and its power efficiency is low, so it is only used for high-concentration fish landed in fish tanks. A rotary solids transfer pump is used for frying.

Therefore, if a rotary solids transfer pump could be used to land fresh fish in a fish tank, it could be used for a variety of purposes.

Furthermore, the solid matter transfer device of the present invention can transfer particularly vulnerable and delicate fish bodies with minimal damage, so it can transfer all solid matter that can be immersed in liquid and transferred, such as ham, ham, etc.
Needless to say, it can be used for sausages, broiler carcasses, potatoes, oranges, and other fruits.

[Brief explanation of the drawing]

1 and 2 are schematic sectional views showing a solid material transfer device according to an embodiment of the present invention, FIGS. 3 and 4 are schematic sectional views of a conventional solid material transfer device, and FIG. 5 and FIG. Figure 6 is a schematic sectional view of a solids transfer device showing an embodiment of the pond of the present invention;
7 and 9 are cross-sectional views showing specific examples of the filter means, FIG. 8 is a side view showing the side flow member of the filter means shown in FIG. 7, and FIG. 10 is a side view of the filter means shown in FIG. 9. Side views of filter material, FIGS. 11 to 13, FIG. 15,
FIG. 16 is a sectional view of a filter means according to an embodiment of the present invention, FIG. 14 is a front view of a fin element of the filter means shown in FIG. 13, and FIG. FIG. 18 and FIG. 19 are further schematic cross-sectional views of a solid material transfer device according to another embodiment. 1. Bladeless impeller, 2φ suction pipe, 3. Discharge pipe, 4. Drain separator, 5. Fish tank, 6. Vacuum pump, 7. Sealed tank, 8. Four-way switching valve 9
@ 11 level sensor, 10... porous filter, 11...
・Check valve, 12...Check valve, 13...Transfer pump, 14
...Liquid passage, 15..Casing, 16..Filter means, 17..Filter material, 18..Casing, 19
・・Removable lid, 20・・Drain port, 21・・Water supply valve, 22・・
・Return channel, 23...Water supply chamber, 24...Filter tube, 25
... Water return pump, 26.. Water return valve, 27.. Booster pump, 28.. Discharge port, 29.. Water control valve, 30.. Side flow member, 31.. Chain wheel 432.. Drive shaft.
33...Chain wheel, 34...Chain, 35...
・Deceleration motor, 344° 6...Ice chamber, 37...Water hole, 38...Chain wheel, 39...Protrusion, 40...Drive rod, 41...Slide rod, 42...Guide, 43... Power cylinder, 44...Fin element, 45...Protrusion, 46...
Drive bin, 47... Drive frame, 48... Recess, 49
...Cylinder, 50...Vacuum pump, 51...Check valve, 52
...Vacuum chamber, 53...Check valve, 54-.Intake cock, Fig. 8, Fig. 10, Fig. 12, and Fig. 14.

Claims (12)

[Claims] (1) A solids transfer device equipped with a rotary solids transfer pump that urges liquid with a rotating impeller and uses this liquid as a transport medium to transfer solids, and includes a casing of the transfer pump. A filter means is connected to the discharge side, which allows liquids to pass through but not solids.
The filter means is connected to the suction side of the transfer pump via a return channel, and via the filter means and the return channel,
a discharge side of the transfer pump is connected to a suction side of the transfer pump;
The filter means and the return channel are both configured so that the concentration of solids passing through the transfer pump is reduced by the liquid returned from the discharge side to the suction side of the transfer pump. Solids transfer equipment. (2) The solid material according to claim (1), wherein the return waterway has a water supply valve that can control the flow rate, and the water supply valve adjusts the amount of water supplied from the discharge side to the suction side of the transfer pump. transport device. (3) A solid material transfer device according to claim (1), wherein the filter means is provided in the middle of a discharge pipe connected to the discharge side of a rotary solid material transfer pump. (4) The solid material transfer device according to claim (3), wherein the filter means is connected near the discharge side of the transfer pump. (5) The solid material transfer device according to claim (1), wherein the filter means is provided at the terminal end of the discharge pipe, and the filter means also serves as a drain filter for the solid material. (6) Claim No. 1, wherein the filter means is provided within the casing of the rotary solids transfer pump.
Solid material transfer device as described in Section 1. (7) The solid material according to claim (3), wherein the filter means is connected in the middle of the discharge pipe, the filter means has a cylindrical filter material, and the filter material is communicated with the discharge pipe. transport device. (8) A part of the casing of the filter means is constituted by a removable opening/closing lid, and by opening the opening/closing lid, clogging of the filter means can be cleaned.
Solid material transfer device as described in Section 1. (9) The solid material transfer device according to claim (3), wherein the cylindrical filter material of the filter means is rotated by a prime mover to prevent clogging thereof. . (10) The filter means includes a flow restriction member that blocks a part of the filter material, and the flow restriction member and the filter material move relative to each other, thereby changing the filter material closing position of the flow restriction member. A solid material transfer device according to claim (3). (11) The solid material transfer device according to claim (10), wherein the flow restriction member is driven and moved. (12) The solid material transfer device according to claim (10), wherein the filter material is in the form of a grid, and the flow restricting member is movably inserted between the filter materials.