JPS5938149B2 - Powder or liquid storage tank - Google Patents

Description

[Detailed Description of the Invention] The present invention temporarily stores powder, granular or liquid substances that are produced with quality changes over time, and when these substances are taken out from the storage state, the above-mentioned method is applied. A granular or liquid storage tank that mixes and extracts materials whose quality varies over time without any variation, and promotes mixing to equalize changes in quality of these materials. Regarding.

The chemical industry usually handles many substances in the form of powder, granules, and highly viscous liquids, and these substances are often manufactured through various chemical reactions, heat treatments, classification, and other operations.

Therefore, the quality characteristics of the substance obtained through these steps may vary over time due to variations in various conditions such as reaction time and reaction temperature. For example, in the production of nylon thread, which is a type of synthetic fiber, granules made of nylon resin, commonly called chips, are melted under heat and extruded into thread form through a spinneret hole, which is then drawn to form nylon thread.

However, yarns produced from the tips of the same rod are not always used together in the same knitted or woven fabric. This is because when manufacturing woven or knitted fabrics using nylon thread, if there is a shortage of thread from the same rod and the thread from other rods is mixed or spliced, color differences may occur due to quality differences due to the different rods. Defects may occur due to differential shrinkage.

This variation between rods of thread is often caused by variation in the quality of the chips. FIG. 1 is a cross-sectional view showing the structure of a conventionally known storage tank. Time-series layers deposited in a conical shape are arranged in series in the order of tl, 2, 3, . . . , tn.

On the other hand, when taking it out, it is discharged from the discharge valve 3 in the same way as tl, 2, 3, ゜゜゜゜'゜, tn, so tl, arranged in chronological order, is 2, 3, etc.・・・
..., trp) layers cannot be dispersed regardless of the order of the layers. As a means to improve these drawbacks, it has been practiced to mix several rods of chips that have already been manufactured so as to reduce the quality difference between the rods.
For example, in the case of powder and granular materials such as chips mentioned above, in order to equalize this type of quality variation, the powder and granular materials to be mixed are placed in one container and mixed and stirred as a whole. The powder and granules to be mixed are placed in a huge container, and stirring and mixing is promoted by using an air flow or stirring blade in the container, or by rotating or reciprocating the container itself for 20 hours or more. .

However, this method requires large amounts of power and long-time operation, and when such long-term stirring action is applied to the powder, the powder may be damaged, powdered, or crystallized due to impact on the surface of the powder. This often results in problems with the quality of the soil. In order to compensate for the deficiencies of the prior art as described above, when taking out a powder, granular or liquid substance stored in a container after storing it in the container, the substance is taken out from the container regardless of the chronological order in which the substance was supplied to the container. This was published in the 1970s by Japanese Unexamined Patent Publication No.
This is disclosed in Japanese Patent No. 157955, and its feature is that a large number of tubes of different heights are arranged in the container.

Since this device extracts the stored substances from the pipe ports at different heights in chronological order, it is unavoidable to discharge a large amount from the pipe ports located at a lower position, and the height and position of the pipes must be arranged. It is difficult, and when powder or granules are used, defects such as easy accumulation in the space between the tube and the bottom cannot be avoided. In addition, in the case of powder or granules, the structure must be quite complicated considering the shape of the discharge port, ease of flow within the pipe, etc. The purpose of the present invention is to improve the above-mentioned deficiencies of the prior art, and to provide a process for taking out the contents, regardless of the supply time sequence during storage, when discharging substances stored in a time series from a container. It is an object of the present invention to provide a novel powder or liquid storage tank that can promote the mixing effect.

In order to achieve the above object, the present invention has the following configuration.

The interior of the container that is left still is divided into a space at the top and a vertical partition wall at the bottom to form a plurality of independent small chambers whose top ends open into the space. A supply port is arranged at a distance from the upper end so as to face the upper end of only one or a portion of the chambers, and a discharge valve is provided at the bottom of all of the plurality of small chambers to enable them to be opened all at once. It is characterized by a storage tank for powder, granular material or liquid.

The present invention will be explained in more detail with reference to embodiments shown in the drawings.

FIG. 2 is a sectional view for explaining the structure of the storage tank according to the present invention, FIG. 3 is a view taken along the line X-X in FIG. 2, and FIG. 4 is a view taken along the line Z-Z in FIG. It is.

FIG. 5 is an enlarged view of section A shown in FIG. 2. In FIG. 2, the storage tank 1 has a container 1, a supply port 2, a small chamber discharge valve 3, a funnel-shaped discharge tube 4, and a simultaneous discharge valve 5 as its main parts. The inside of the container 1 has partition walls Wl, W27W3"゜゛゜゜W0
-1 into a plurality of small chambers Cl, C2...CO. The supply port 2 faces the upper end of the first arranged small chamber C1, and is arranged at a distance of H from the upper end of the small chamber with an area included within the cross-sectional area of the small chamber. , the substance supplied from the supply port first enters the small chamber C1.
C2, C3...
Although the chamber is filled with CO, care is taken not to supply the substance across two chambers at the same time. When the container 1 is full, the powder and granules fall under their own gravity by opening the small chamber discharge valve 3, and are stored in the funnel-shaped discharge tube 4 connected to the container 1 via the discharge valve 3, and the time series Tl, t2...
...The substances arranged in parallel in the order of TO move into the funnel-shaped discharge tube at the same time. The funnel-shaped discharge pipe 4 is provided with a simultaneous discharge valve 5, and when it is opened, Tl, t2,...
・As a result of each powder and granular material in the time series of TO being discharged at the same time, the powder and granules in each time series are discharged almost equally, and the amount of powder in the storage tank is Substances can be discharged. These specific means will be described in more detail.

The specific method of sequentially distributing the powder and granules to each chamber is as shown in Figure 5, when the powder supplied to chamber C becomes full and the supply continues, the repose angle θ of the granules occurs. When the angle of inclination α of the mountain becomes larger than the angle of repose θ, the granular material then enters the small chamber C2. Similarly, C3,...,CO becomes full, and multiple small chambers Cl, C2, C3,...,C
The powder and granules are Tl, t2, t3,... in chronological order in n.
..., TO are temporarily distributed and stored in the order of the cells. A cell discharge valve is provided at the bottom of each cell. This valve is constructed so that each chamber is connected at the same time. This operation can be performed mechanically or electrically. In this embodiment, when the liquid is discharged using something like a long butterfly valve, it is arranged in the funnel-shaped discharge pipe 4 as described above. The substances in the funnel-shaped discharge tube are discharged all at once through the discharge valve 5. In this embodiment, the simultaneous discharge valve 5 is a rotary valve, and although it is preferable to use this valve to regulate the discharge amount, it is not always necessary, and it can also be operated by the small chamber discharge valve 3 alone. . In Fig. 5, partition wall W1'W27
W3 "0゜゛8゜'Wn-1 pitch P and small room Cl
, C2, C3, ......, Cn is the interval at which the stored powder and granules flow smoothly, and is divided in advance to suit the size of the storage tank, the type of raw material, and the characteristics. Depends on the number. The shape of the container and the shape of the partition wall can be made parallel to the wall of the main container 1 as shown in FIG. At this time, the supply port 2 is provided near the center of the container 1 above the small chamber C1. Bulkhead W1? The height of W2゛1゜10''?Wn-1 may be horizontal, but since the flow direction differs depending on the properties of the substance, it is better to change it according to the properties as described later.In the case of powder and granular materials As shown in FIG. 5, it is preferable that W2 is made higher than the partition wall W1, and in the same way, W3 to Wn-1 are made higher in order to prevent the powder and granular material that should enter the small chamber C2 from scattering and entering the next small chamber C3.

The method of dividing the small chambers Cl, C2, C3, . The spacing, shape, and height of the partition walls are greatly influenced by the properties, viscosity, and angle of repose of the substance.

Further, in FIG. 2, when particles such as nylon chips are used, the angle of repose θ of the chips is about 45.

Therefore, when the height of the supply port 2 and the partition wall WO-, is H, and the horizontal length of the supply port and the partition wall WO-, is L, in order to make - that is, Tanθ constant L, L must be When the length increases, H must be increased.

In addition, the time series Tl, t2, t3, ......, Tn of this powder is deposited on the conical mountain part that occurs at the angle of repose, and when it is discharged, it is not uniformly dispersed to some extent. Although some changes can be seen, the influence of this upper conical mountain is small because it falls under its own gravity into each chamber separated by a partition wall and is dispersed to some extent.
In this relationship, when the height of the straight part of the storage tank in FIG. 3 is H', the ratio with H in FIG. /5 is best.

FIG. 6 is a sectional view showing a storage tank different from FIG. 2,
FIG. 7 is a side view of FIG. 6.

FIG. 8 is an enlarged view of section B in FIG. 6.

The embodiment shown in FIG. 6 is constructed to be suitable for liquids, and the container 1 is equipped with a supply port 2, a small chamber discharge valve 3, a pipe 4' for combining the small chamber discharge valves into one, and a simultaneous discharge valve 5. It has been.

There are partition walls W1 and W2 inside the storage tank main body container. W3a1102
Due to Wn-1, small chambers Cl, C2, C3,...
There is Cn. The method of distributing the liquid to each of the above-mentioned chambers is almost the same as in the case of powder and granules, and in order to distribute the liquid in a chronological order that is easy to flow and is easily supplied, the partition walls are arranged as shown in Figure 8. It is more preferable to lower the partition wall in the order of ``'?Wn-1'' than when the partition wall is horizontal.The rate at which the partition wall is lowered varies depending on the characteristic conditions such as the supply rate and viscosity of the liquid used. Figs. 9 and 10 , FIG. 11 shows a cross section of a storage tank according to the present invention, and in these embodiments, the shape of the container, the partitioning of the small chambers, and the positional relationship of the supply port are shown. What is shown is an embodiment in which the supply port 2 is provided at a corner of a container having a rectangular cross section, and the partition wall is preferably attached diagonally.

The spacing, shape, and height of the partition walls are determined according to the properties of the fluid so that the fluid flows in the direction of arrow R. The container shown in Fig. 10 has a supply port 2 in the center of a container with a circular cross section, and the partition walls are concentric circles, and the shape and height of the partition walls are adjusted according to the properties of the fluid so that the liquid flows radially. Decide.

In the case shown in FIG. 11, a container having a circular cross section is separated by radial partition walls Wl, W2, W3, ..., WO, and the supply port 2 is located above the small chamber C1, and the fluid is This is determined by considering the spacing, shape, and height of the partition walls and the properties of the fluid so that the flow flows in the direction R. However, in this embodiment, the partition wall WO needs to be structured to be high so that CO does not enter directly from the small chamber C1. .

In addition, the container may be polygonal, or the container may be circular with spiral partition walls, and it is clear that these embodiments will have the same effect. The capacity of the storage tank according to the present invention is determined by the amount of fluid, but it is generally applicable from a small tank of about 10 kg to a large tank of about 20 tons.

The size may be such that it is possible to store at one time an amount of fluid containing powder or granules produced within a sufficient period of time to equalize variations in the characteristics of normally produced fluids. The storage tank according to the present invention has an excellent function and effect in that the substances stored in the tank are mixed when taken out by simply storing the substances.

These mixing effects are based on the fact that the inside of the storage tank is divided into a plurality of independent small chambers, and that the liquid is taken out from these small chambers at the same time.However, these things do not require any extra power. The size of the tank is almost the same as the conventional one, so no special floor space is required.

In addition, the main body of this tank has no mechanically moving parts, so maintenance and inspection do not require special effort, and the number of storage tanks can be reduced compared to conventional mixing devices. This provides an excellent effect in that no damage is caused to the powder passing through the tank.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a conventionally known storage tank. FIG. 2 is a sectional view for explaining the storage tank according to the present invention, FIG. 3 is a view taken along the line X-X in FIG. 2, and FIG. 4 is a view taken along the line Z-Z in FIG. FIG. 5 is an enlarged view of section A shown in FIG. 2. FIG. 6 is a cross-sectional view showing the storage tank of the present invention, which is different from FIG. 2, and FIG. 7 is a side view of FIG. 6. FIG. 8 is an enlarged view of section B in FIG. 6. 9th, 10th, 11th
The figures each illustrate a cross section of a storage tank according to the present invention. 1: Storage tank main container, 2: Supply port, 3: Small chamber discharge valve, 4: Funnel-shaped discharge tube, 4': Discharge piping, 5: - Simultaneous discharge valve SWl2W2'W3?11'Wn-1: Partition wall) Cl
, C2, C3, ..., CO: Komuro.

Claims (1)

[Claims] 1 The interior of a container that is left still is divided into a space at the top and a vertical partition wall at the bottom to form a plurality of independent small chambers whose top ends open into the space, and the plurality of small chambers. A supply port is arranged at a distance from the upper end so as to face the upper end of only one or a portion of the chambers, and a discharge valve is provided at the bottom of all of the plurality of small chambers so as to be able to open them all at once. A storage tank for powder, granular material or liquid.