JPS60156521A - Filtration and drying apparatus - Google Patents

Abstract

PURPOSE:To obtain an apparatus capable of easy operation and capable of discharging filter cake in a tank completely under uncontaminated condition by providing a first and a second intermediate chamber connecting to a gas/liquid passing member, plural numbers of vane plate hung vertically downward by a horizontal rotary arm, and a screw which is concentrically provided to a discharging port. CONSTITUTION:A discharge valve 10 constructing a first intermediate chamber 12 between a conical base plate and a first filtration plate 8 having almost the same shape as the base plate, and a second filtration plate 30 constructing a second intermediate chamber 32 between the discharging port and a valve plate 33, is attached. Further, a gas/liquid passing member consisting of a communicating pipe 14, communicating hole 31, source for compressed gas 36, and valves 37, 38 is connected to the first and second intermediate chambers 12, 32, and plural numbers of vane plate 6 hung vertically downward from a horizontal rotary arm 5 and a concentric screw 7 to the discharging port are provided to the inside of a filtration drying tank 1. As the result, the operation is easy due to its relatively simple structure causing scarcely troubles. The filter cake in the tank 1 is completely taken out without causing contamination of the cake, or without causing contamination of environment.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an over-drying device in which V-filtration and drying are performed sequentially in the same tank.

A device is known in which a cylindrical cypress is provided with a filter plate at the bottom, and the P solution introduced into the tank is filtered to extract the P liquid, and then the P slag deposited in the tank is dried.

By the way, in this type of known device, gravity causes the f-pass plate to
Alternatively, after the F liquid is passed through by pressurization or depressurization and R filtration is performed, the P slag accumulated in the tank is dried and taken out, but this removal is done manually or completely separately. In many cases, the f-slag is contaminated when the f-slag is obtained, and the workplace and workers are often contaminated with the f-slag, and a clean r F that cannot be recycled and is harmful to the human body.
In the case of slag, it causes major environmental problems.

For this reason, take-out devices for each building have been proposed in the past, but all of them have complicated structures, are difficult to operate, and are prone to frequent failures, as well as being unable to completely take out the f-slag in the tank. There were many drawbacks, such as difficulty in cleaning the inside of the tank.

It is an object of the present invention to eliminate the drawbacks of the conventional apparatus as described above, to provide a relatively simple structure, easy operation, and less failure (to keep the slag in the tank clean or in the environment). An object of the present invention is to provide an over-drying device that allows for complete removal of food without fear of contaminating it.

In order to achieve the above-mentioned object, this invention provides a rotating shaft extending from above to downward in a tank having a conical bottom plate, and a rotating arm extending horizontally from this rotating shaft has a number of vanes. A first filter plate having substantially the same shape as the bottom plate is provided above the bottom plate to form a first intermediate chamber between the two plates, and a screw is provided vertically concentrically with the discharge port provided at the lower end of both plates. a discharge valve having a second filter plate forming a second intermediate chamber between the discharge port and the valve plate; This device is characterized in that a gas-liquid distribution member is connected to the second intermediate member.

The embodiment shown in the drawings will be described.

The design shows an over-drying tank in which a cylindrical body 2 with an opening at the bottom and a bottom 3 with a conical bottom plate are separably connected at a flange 21, 22, and a vertical section extending through approximately the center of the lid plate is shown. A rotary shaft 4 is installed, and this rotary shaft 4 is rotated in forward and reverse directions by a motor 25 via a speed reducer 24.

A rotating arm 5 extending horizontally is provided at the lower end of this rotating shaft 4, a plurality of vertical vanes 6 are provided on this arm 5, and a vertical screw 7 is further provided at the lower end of the rotating shaft 4. . The planar shape of the wing plate 6 is shown in FIG.

In the figure, the wing plate 6-1 on the left side is in the form of a flat plate and is inclined with respect to the radial direction, and the direction of inclination may be opposite to this. Board 6-2
consists of a triangular plate with the apex located toward the center,
Instead of this wing plate 6-2, the entire wing plate may be made into X;&6-1.

The screw 7 may be attached to a vertical axis of rotation other than the rotation axis 4.

A plurality of annular partition plates 13 are provided on the upper surface of the bottom part 3 of the tank l, a first filter plate 8 is arranged on the upper part of the partition plate 8 almost parallel to the bottom plate, and a plurality of annular first intermediate chambers 12 are arranged between the drawing plates. The intermediate chambers 12 communicate with the outside of the tank via flow pipes 14, respectively.

A discharge port 9 concentric with the screw 7 is provided on the r pass plate 8 and the bottom plate of the roller 1. The e-pass plate 8 is usually formed of a whole mesh or a perforated plate such as a sintered metal plate.

A filtration stock solution supply pipe 16, an applied pressurized gas supply pipe 17, a heated gas supply pipe 18 for f slag drying, and a scrubbing liquid supply pipe 19 are attached to the plate of the tank 1, respectively, and the cleaning liquid supply pipe 1
An annular spray pipe 20 is connected to the lower part of the pipe 9.

A discharge valve 10, shown in detail in FIG. 3, is attached to the discharge port 9. This valve 10 has a discharge hole 28 in the center of the valve body 27.
A first filter plate 30 located in the discharge hole 28 is provided on one side of the valve stem 29 which is rotatably provided in the main body 27 in the horizontal direction. 2nd in between
An intermediate chamber 32 is formed, and this intermediate chamber 32 is connected to the valve stem 2.
It communicates with the outside of the tank via a communication hole 31 provided in 9, and the r-pass plate 30 is configured similarly to the e-pass plate 8.

As shown in FIG. 1, each of the flow pipes 14 and the flow holes 31 are connected to a drain receiver and a pressurized gas outlet 36 (not shown) via pipes connected thereto, and the pipes have valves 37, 3g are provided, and these parts constitute a gas-liquid distribution member.

An f-slag receiver 34 is separably connected to the outlet of the discharge valve 10.

Next, the state of use of the above-mentioned device will be explained.

In the above, the diameter of tank 1 is 110 m.

The depth from the cover plate to the overboard plate 30 of the discharge valve lO is 60 cI.
rL is prepared, the discharge valve lO is set as shown in FIG. 3, the discharge hole 28 is closed with the valve plate 33, and the valve 37 is opened and the valve 38 is closed.

To this, 1,300 g of an organic solvent concentrate containing 5 g of crystalline solids was supplied into the tank 1 through the supply pipe 16, and pressurized gas was introduced into the tank 1 through the supply pipe 17. and start filtration by gas pressure. This insect-repellent F liquid passes through a large number of small holes with a diameter of 5 microns in the filter plate 8. It is discharged.

The f slag accumulated above the filter plates 8 and 30 in this way is washed with the cleaning liquid introduced into the tank 1 through the supply pipe 19 and the spraying pipe 2o, and the liquid after washing is treated in the same manner as above. The liquid is discharged to the outside through the flow pipe 14 and the flow hole 31, and the f-passing process is completed.

The f slag thus deposited in the tank 1 had a thickness of 300 mm at the center and 100 mm at the outer periphery.

In the next drying step, the temperature is 50°C from the supply pipe 18 to 8.
Drying is performed by introducing heated air of 0@/hr into the cypress l and passing air between the particles of the P slag. The dry gas containing the solvent generated at this time passes through the filter plate 8.30 and is discharged to the outside through the flow pipe 14 and the flow hole 31 in the same manner as the above-mentioned f liquid.

When the motor 25 is activated to rotate the arm 5 in the direction of the solid arrow in FIG. −
2, the screw 7 receives a force directed inward in the direction of the arrow, and at this time, the screw 7 rotates in a direction that lifts the F slag upward and then drops it, and as a result of these, the drying of the P slag is reduced to crushing. It is effectively carried out under the action of stirring.

At this time, the valve 38 is opened, the valve 37 is closed, and the gas source 3
6, when pressurized gas is introduced into the tank 1 through the distribution hole 14 and the distribution hole 31, the e-slag is lifted up, so that when the vane plate 6 is started, the mechanical load is reduced, and At the time of finishing the drying, the f-slag is separated from the filter plates 8, 30, floated, and flowed, which helps promote efficient drying. In this case, the accumulated slag is thicker at the center than at the outer periphery as described above, so a control valve (not shown) is placed in each of the piping that sends pressurized gas to each intermediate chamber, so that the slag reaches the center. If the amount of pressurized gas is adjusted to increase accordingly, the drying of the f-slag in each part will be more even.

When the drying process is completed in this way, the f-slag receiver 34 is connected to the lower part of the discharge valve 10 as shown in FIG. 1, and then the valve stem 29 is rotated 90 degrees to open the discharge hole 28. ,
Pressurized gas is introduced into the tank l through the flow pipe 14, and the dried e-slag deposited on the f filter plate 8 is separated, floated, and flowed.

Similarly, when the arm 5 is rotated 5 revolutions per minute in the direction of the dotted arrow in FIG. , the vane plate 6-2 also receives an inward component force shown by the arrow B' similar to the above-mentioned component force, and at this time the screw 7 rotates so as to move the f slag downward, and due to these, The crushed and dried slag gathers toward the center inside the tank 1 and descends. At this time, since the bottom of the tank 1 is inclined conically, the introduction of pressurized gas into the filter plate 8 causes the blade plate 6 to
Since the f slag in the gap between the filter plate 8 and the filter plate 8 flows and moves to the center and is discharged, there is no need to make the gap between the filter plate 8 and the blade plate 6 extremely small, and the remaining residue in the yuzu 1 The amount of slag was very small, and was only 0.5 Kp compared to the amount of dry slag discharged, 60 Kp.

As the pressurized gas used in the above case, an appropriate one is selected depending on the slag or solvent, but in general, an inert gas such as 9 gas or nitrogen is used, and the through holes of the filter plates 8, 30 The size of the trough is selected to match the particle size of the e-slag, and in addition to these, the material, shape, and dimensions of the trough are
It is not necessary to select an appropriate one depending on the dimensions and characteristics of the P slag and the solvent. However, the inclination angle of the bottom plate of the bottom part 3 of the oak affects the thickness of the accumulated slag, and if it is too thick, the difference in thickness between the outer periphery and the center of the tank will become large, and the drying of one slag will increase. It tends to cause unevenness, and if it is too small, it becomes difficult to completely discharge the f-slag, so 20 to 25 degrees is actually preferable.

This is a case where the above-mentioned work is not performed.

When necessary, the body 2 and the bottom 3 can be separated at the flanges 21 and 22 and the interior can be cleaned, which is extremely easy.

This invention is as described above, and a first intermediate chamber is formed between the conical bottom plate and the first filter plate having substantially the same shape as the conical bottom plate, and a second intermediate chamber is formed between the discharge port and the valve plate. A discharge valve having a second filter plate is installed, and a first filter plate is installed. The gas-liquid flow member is connected to the second intermediate chamber, and the tank is equipped with a plurality of vanes hanging from a horizontal rotating arm and a screw concentric with the discharge port.
The r liquid passes through both f passage plates and is discharged to the outside from the intermediate chamber using the gas-liquid distribution member. After passing through the r-liquid in this way, the pressurized gas is transferred to the intermediate chamber using the gas-liquid distribution member. is introduced, and this gas can levitate and flow the slag on the f-plate, so in combination with the crushing and stirring action of the vanes and screws, the dry vein process is carried out efficiently, and furthermore, during the discharge process. Similarly to the above, the pressurized gas cooperates with the evacuation work of the vanes and screws to enable smooth evacuation, and all of this is done automatically within a closed tank. A clean r slag without contamination is obtained, and f
It has many excellent effects such as there is no risk of environmental pollution due to slag.

[Brief explanation of the drawing]

Fig. 1 is a partially longitudinal front view of an embodiment of the present invention, Fig. 2 is a bottom view of the rotary arm, vane plate, and screw of the above, and Fig. 3 is an enlarged longitudinal sectional front view of the discharge valve of the same. be. l...Filtration drying tank 2...Body part 3...Bottom part 4...Rotating shaft 5...Rotating arm 6...Main board 7...Suffle 8...First filter plate 9...exclusion
Outlet lO...Discharge valve 12...First intermediate chamber
13... Partition plate 14... Flow pipe 27... Valve body 28... Discharge hole 30... Second filter plate 31...
・Flow hole 32... Second intermediate chamber 33... Valve plate 36... Pressurized gas source 37.38... Valve

Claims (1)

[Scope of Claims] 1. A rotating shaft extending from above to below is provided in a tank having a conical bottom plate, and a plurality of blade plates are vertically disposed on a rotating arm extending horizontally from the rotating shaft. A first filter plate having substantially the same shape as the bottom plate is provided above the bottom plate to form a first intermediate chamber between the two plates, and a screw is vertically disposed concentrically with a discharge port provided at the lower end of the drawing board, and a screw is provided vertically in the discharge port. There is a second valve between the valve plate and the valve plate.
equipped with a discharge valve having a 21st overplate forming an intermediate chamber;
Said 1st. F. An over-drying device characterized in that a gas-liquid distribution member is connected to the second intermediate chamber. 2. The over-drying device f according to claim 1, wherein the first intermediate chamber is divided into a plurality of annular chambers by a plurality of annular partition plates.