JP2003033734A - Cleaning and storing unit for pellet abrasive, and cleaning and conveyance method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the care of pellet abrasive at a large-scaled pachinko parlor by combining a cleaning means which can clean a large amount of pellet abrasives at one time with a pellet storing means which stores cleaned pellets through an air supplying/exhausting means. SOLUTION: A cleaning means A, equipped with an air lifting pump 5 in a cleaning tank 3 and being able to wash a large amount of pellets at one time, has a high cleaning capacity. A pellet storing means B is capable of conveying cleaned pellets from the cleaning means by way of an air supplying/ exhausting means C. A facility is simplified as it lets the air supplying and exhausting means C conduct all pressure adjustment only by a single blower 201 by the action of a plurality of control valves. The facility has characteristics that each process of cleaning, rinsing drying and conveying of a large amount of pellet abrasive is performed sequentially by making the three means controllable by the plurality control valves, and also that its conveyance efficiency is extremely high.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, a pellet abrasive cleaning / conveying apparatus for cleaning pellet abrasives for polishing pachinko balls, and a pellet abrasive cleaning / conveying apparatus using the same.
The present invention relates to a transportation method.

[0002]

2. Description of the Related Art Resin pellets are often used as an abrasive material for pachinko balls, and when the degree of contamination of these pellets increases, they are washed and reused. As a means for washing such pellets, a pellet washing machine is used in which detergent and washing water are added to the pellets placed in a washing tank and the stirring plate is rotated to stir the pellet (for example, Japanese Patent Laid-Open No. 6-155581). issue). However, in such a pellet washing machine, it is necessary to put the pellets into a washing bucket and put the pellets in and out of the washing tank. Moreover, when the bucket is taken in and out, it is necessary to move the stirring plate and its drive unit. Further, there have been problems such as generation of noise due to rotation of the stirring plate, danger due to the exposed rotating body, insufficient stirring, and low cleaning efficiency due to uneven stirring.

On the other hand, the applicant of the present invention replaces the stirring and washing with the stirring plate previously and cleans the pellets by forcibly circulating air by sending air from below into a mixed fluid such as washing water and pellets in the washing tank. We proposed a polishing pellet cleaning device that can be cleaned quietly and efficiently (for example, Japanese Patent Application 2
001-155581). In addition, in consideration of the increase in the amount of pellets to be washed as the pachinko amusement park grows in size, the washing buckets that have been used up to now have been abolished, and the amount of washing that has been used so far is one bucket per bucket. By removing the frame of the quantitative limitation, which was limited to the above, a polishing pellet cleaning apparatus capable of simultaneously cleaning a large amount of pellets using an air lift pump was proposed (Japanese Patent Application No. 2001-19099).
No. 8).

[0004]

However, even in the above-mentioned proposal, it cannot be denied that it is becoming insufficient to deal with the increase in size of the cleaning device accompanying the increase in size of the pachinko game hall. That is, it takes a lot of time and labor to carry out the operation of loading and unloading the pellets into and from the cleaning tank, and to transport the pellets from the cleaning tank to the pellet tank, which makes the work load of the cleaning operator heavy. In addition, there is a problem that the manufacturing cost rises because the equipment cost such as a power source and various control means accompanying the automation of each process also increases.

Therefore, an object of the present invention is to overcome the above-mentioned problems, to carry out the steps from washing to storage in a consistent manner, and to provide a cleaning and storing apparatus for pellet abrasives having high safety and cleaning efficiency. An object of the present invention is to provide a method of cleaning and carrying pellet abrasives.

[0006]

In order to achieve the above object, the pellet abrasive cleaning and storing apparatus according to the present invention has several constitutions which are radically changed from the cleaning mechanism of the conventional cleaning apparatus. By adopting these configurations, the following effects can be obtained by adopting each of these configurations.

(Constitution of the invention described in claim 1) The cleaning and storage device for a pellet abrasive according to claim 1 is a pellet as a device for cleaning, rinsing, and drying the pellets to be cleaned. A cleaning means, a pellet storage means for storing the processed pellets conveyed from the pellet cleaning means, and a supply / exhaust means for controlling the supply / exhaust of the pellet cleaning means and the pellet storage means Become.

This pellet abrasive cleaning and storage device is
In particular, the feature is that the following means are adopted. That is, of the above components, the pellet cleaning means is
A cleaning tank whose inside is divided into a cleaning chamber and a cleaning pre-chamber by a partition plate having a plurality of through holes, a water supply / drainage unit for controlling the water supply / drainage of this cleaning tank, and a standing / standing unit in the cleaning chamber. An air lift pump that receives the supply of air to forcibly circulate the cleaning water and the like in the cleaning tank is provided. Further, the pellet storage means includes a storage tank capable of storing the pellets carried in from the washing tank via the pellet carrying pipe, and a pellet carrying pipe carrying in the treated pellets from the washing tank. Furthermore, the air supply / exhaust means is provided with a blower serving as a central portion thereof, a plurality of control valves for controlling the pressure generated by the blower, and a heater for generating warm air, and the cleaning tank and the pellet storage means are provided. The supply pressure can be adjusted to correspond to each process.

(Operation and effect of the invention described in claim 1) The washing and storing apparatus for pellet abrasives of the invention described in claim 1 comprises a washing means and a pellet storing means capable of washing a large amount of pellets at the same time. By connecting via the air supply / exhaust means, the steps from charging of the pellets to be cleaned into the cleaning tank to cleaning, rinsing, drying and transfer to the storage tank can be performed with a simple configuration. Especially, since the air lift pump is adopted as the cleaning means, the amount of pellets to be processed in one operation becomes large, but by connecting the cleaning tank and the pellet storage means with the pellet transfer pipe, the processing can be performed without relying on human power. The used pellets can be transported and stored. Also, in addition to the air blow to the air lift pump and the air blow for drying required for washing and rinsing the pellets, the pressure adjustment of the pellet storage tank, etc. is controlled by the blower that constitutes the air supply and exhaust means and the control of multiple control valves. Work is done smoothly.

(Characteristics of the invention described in claim 2) The invention described in claim 2 is the apparatus for cleaning and storing the pellet abrasive according to claim 1, wherein a cleaning chamber and a cleaning prechamber are provided in the cleaning tank. The partition plate part to be partitioned into is composed of a conical shape whose outer peripheral part is in contact with the inner peripheral part of the cleaning tank, and is provided with a pellet concentrating part which hangs a predetermined range in a cylindrical shape at its central part. Is characterized by. On one side of this concentrated part,
A pellet outlet is provided for transporting the treated pellets to the pellet storage means. The pellet concentrating section facilitates the direct transportation of pellets to the storage tank.
Pellets are easily collected on the partition plate. The treated pellets collected in the pellet concentrating portion can be easily transferred to the pellet storage tank via the pellet discharge port and the pellet transfer pipe.

(Characteristics of the Invention Described in Claim 3) In the invention described in claim 3, the pellet storage means is provided with a pressurizing valve as one of the control valves constituting the air supply / exhaust means so that the inside of the storage tank is predetermined. The feature is that the pressure can be adjusted. The pressure in the storage tank is kept in a vacuum state by the operation of the air supply / exhaust means during the transportation of the pellets. However, during processing of pellets such as washing, rinsing and drying,
If the pressure in the storage tank is lower than the pressure in the cleaning tank, water or the like may flow from the cleaning tank through the pellet transfer pipe. On the other hand, it is necessary to keep the pressure in the storage tank equal to or higher than the pressure in the cleaning tank. By thus adjusting the pressure in the storage tank to be higher than the supply pressure to the cleaning tank, it is possible to prevent water and the like from entering the storage tank during the pellet processing operation in the cleaning tank. It becomes possible.

(Operation and effect of the invention described in claim 4) The invention described in claim 4 is to supply air to the air lift pump and supply hot air to the cleaning tank by using only a single blower as the air supply and exhaust means. Another feature is that the air flow required for adjusting the pressure in the storage tank and for transporting the pellets from the cleaning tank to the storage tank is set to be bearable. As described above, the present invention is characterized in that various steps can be performed by the blower and the plurality of control valves, but in particular, it is possible to pressurize and depressurize all of these steps with only a single blower. Therefore, the structure of the air supply / exhaust means can be simplified. As a result,
Since the manufacturing cost of this device can be reduced, it is possible to promote the installation in many amusement arcades.

(Structure of the Invention According to Claim 5) The invention according to claim 5 is a method for cleaning pellet abrasives using the cleaning and storing apparatus for pellet abrasives according to any one of claims 1 to 4. The present invention relates to a transportation method. The method of cleaning and carrying the pellet abrasive according to the present invention is characterized in that it includes the following steps. A preparation process in which pellets to be cleaned and detergent are put into the cleaning tank and the cleaning tank lid is covered.
A washing step of washing the pellets by supplying washing water into the washing tank from the water supply / drainage means and then supplying air of a predetermined pressure from the air supply port of the air lift pump vertically installed in the washing chamber by the air supply / exhaust means. A rinsing process in which the washed pellets are cleaned by supplying air to the air lift pump while supplying rinsing water into the washing tank containing the washed pellets. A drying step of drying the rinsed pellets by supplying warm air from the air supply / exhaust means to the washing chamber via the warm air supply hose. A transfer process that transfers processed pellets from the cleaning room to the storage tank using a pellet transfer pipe.

(Effect of the invention described in claim 5) In the above cleaning step, air is supplied from the air supply / exhaust means to the air lift pump via the air supply port provided at the middle of the height of the air lift pump. Then, due to the foaming action in the pump, the fluid formed by mixing the washing water and the pellets to be washed rises in the pump. As a result, the above-mentioned fluid is sucked up from the lower end of the air lift pump, forcible circulation occurs in the cleaning tank, the cleaning water containing the detergent and the pellets to be cleaned collide with each other, and the components on the pellet surface are soiled by rubbing each other. Are washed away. The foam generated by foaming rises while growing in a state of containing a dirt component, is finally treated by the foam treatment means, and is discharged through the water supply / drainage means. In the rinsing step, the detergent and the like adhering to the washed pellets are rinsed off by supplying forced rinse circulation with an air lift pump while supplying rinse water into the cleaning tank. Since the rinse water is continuously supplied, the rinse water is gradually replaced and cleaned,
The rinsing process is completed when a predetermined time elapses. The next drying step is performed by heating the heat generated by the heater of the air supply / exhaust means with a blower and supplying the warm air into the cleaning tank through the warm air supply hose. The warm air that has entered the cleaning prechamber via the warm air supply hose enters the cleaning chamber through the through holes of the partition plate, passes through the pellets accumulated there, and is dried while rising. By covering the cleaning tank lid, direct upward diffusion is hindered, which promotes temperature rise in the cleaning tank.
It has high drying efficiency. Finally, in the transfer step, the processed pellets are transferred from the washing tank to the storage tank through the pellet transfer pipe, and this transfer energy is reduced by reducing the pressure in the pellet storage tank. This is done by aspirating the treated pellets in the cleaning bath. The pressure in the pellet storage tank is reduced by the operation of the blower and control valve of the air supply / exhaust means.

(Characteristics of the invention described in claim 6) According to the invention described in claim 6, during the cleaning step, the rinsing step and the drying step, the pressure in the storage tank is adjusted to be equal to or higher than the pressure in the cleaning tank. The feature is that it is done. This is performed in order to prevent moisture or the like from entering from the pellet conveying pipe when the pressure in the pellet storage tank is lower than the pressure in the cleaning tank. This pressure adjustment is performed by supplying air from the air supply / exhaust means to the storage tank by operating a pressurizing valve, which is one of the control valves.

(Characteristics of the invention described in claim 7) According to the invention described in claim 7, during the transportation of the treated pellets, the efficiency of transportation is improved by blowing air to the cleaning chamber through the warm air supply hose. There is a feature in that there is. Specifically, when decompressing the inside of the storage tank, the pressure due to the exhaust air generated on the outlet side of the blower (hereinafter referred to as "back pressure") is supplied to the cleaning chamber by using the hot air supply hose and unheated air with the heater off It is what blows air. The air sent into the pre-cleaning chamber by this non-heated air blows through the plurality of through holes of the partition plate and enters the cleaning chamber to increase the pressure in the cleaning chamber. In addition, the pressure near the upper entrance of the pellet concentration part is low due to suction from the pellet conveying pipe, whereas the wind passing through the partition plate part is in the range where this pressure is short-circuited due to short circuit. It's easy to concentrate and flow toward you. For this reason, a high-speed flow from the surroundings to this inlet is generated in the area near the upper inlet of the pellet concentrated portion. By the way, the treated pellets accumulated in the vicinity of the upper entrance of the pellet concentration portion are easily pressed and solidified by the upper pellets accumulated in the cleaning tank. In this invention, for pellets that are difficult to be transported near the entrance of the pellet concentrating portion, high-speed air is blown from above the pellet concentrating portion toward the inlet by non-heated air blowing, and the pellets are positioned at the bottom. The pellets are easily sent out toward the pellet conveying pipe.
Further, the pressure strengthened by the back pressure works to push the pellets in the pellet concentrated portion toward the pellet discharge port, which facilitates the discharge (suction) of the pellets, and thus improves the transport efficiency. it can.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION (Overall Structure) First, the overall structure of a polishing pellet cleaning / storing apparatus to which the present invention is applied will be described with reference to FIG. As shown in the figure, this device includes a pellet cleaning means A, a pellet storage means B, and an air supply / exhaust means C for controlling the pressures of both the above means.
It consists of a combination of the three.

Most of the pellet cleaning means A is housed in the frame body 1, and the main elements of this are the cleaning tank 3, the air lift pump 5, and the cleaning tank lid 7.
And a water supply / drainage means 11 and the like. Further, the pellet storage means B includes a storage tank 101, a pressure adjusting means in the tank, a pellet discharge port 105, and the like. Further, the air supply / exhaust means C is configured by a blower 201 and the wind force generated by the blower to the pellet cleaning means A and the pellet storage means B, and various valve pipes for controlling the blown air amount and pressure. ing. The processed pellets are conveyed from the pellet cleaning means A to the pellet storage means B through the pellet conveying pipe 123, and the suction force of the pellet conveying pipe is given by the air supply / exhaust means C as described later. It is a thing.

(Structure of Pellet Cleaning Means) As shown in FIG. 2, the pellet cleaning means A is mostly housed in a frame body indicated by a chain double-dashed line, and is a main component of the cleaning tank 3 body. A connection pipe to the above-mentioned air supply / exhaust means, a water level pipe of the water level sensor 15, and the like project from the portion. The cleaning tank 3 is composed of a container having an opening at the top of a cylindrical body having a height twice or more the diameter. In the conventional cleaning tank, the ratio of the diameter to the height is about 1: 1, whereas in the cleaning tank of the present invention, the ratio is 1: 2 or more. This is because the volume is increased, the washing amount per wash is more than double that of the previous one, and the intervention of the bucket, which is troublesome in loading and unloading work, is eliminated to promote automation of pellet washing. There are features. An air lift pump 5, which will be described later, is vertically provided at the center of the inside of the cleaning tank 3. Further, it is shown that the upper part of the cleaning tank 3 can be covered with the cleaning tank lid 7.

(Constitution of Cleaning Tank) A partition plate 9 having an inverted conical shape is provided in the vicinity of the lower end of the cleaning tank 3, and the interior of the cleaning tank is above the cleaning chamber 3a with the partition plate serving as a boundary. The lower part is a cleaning preliminary room 3b. The outer peripheral portion of the partition plate portion 9 is in contact with the inner peripheral surface of the cleaning tank 3, and the sharpened central portion is located near the center of the bottom portion of the cleaning tank. A large number of through holes 9a, ... Are arranged in the partition plate portion 9. Through hole 9a
The diameter of is such that washing water can pass through but pellets to be washed cannot pass through. Incidentally, when the diameter of the pellet is about 2.5 mm, the diameter of the through hole is preferably 1.6 mm. Further, a water supply / drainage hole 3c is provided at the center of the bottom of the cleaning tank 3, and a water supply / drainage means 11 which is piped below the cleaning tank is connected to this. A cylindrical container-shaped pellet concentrating portion 10 is provided at the central portion of the partition plate portion 9, that is, at the top of the inverted conical shape. The pellet concentrating portion 10 is provided so as to hang down from the central portion of the partition plate portion 9, and the lower end portion thereof is located near the water supply / drainage hole 3c provided at the bottom portion of the cleaning tank.

(Structure of Pellet Concentrating Portion) As shown in FIG. 4, the pellet concentrating portion 10 is composed of a cylindrical body having an upper end opening, and a pellet discharge port 10a is provided on one side.
The pellet discharge port 10a is integrally provided with a pellet discharge pipe 10b which is inclined upward. The pellet discharge port 10a is connected to a pellet discharge pipe 10b which is integral with the pellet discharge port 10a and projects from the frame body 1, and a pellet conveying pipe 123 is connected to the tip end portion thereof. The lower end of the pellet concentrating portion 10 is formed in an inverted conical shape,
A water draining portion 10c is provided at the center of the lowermost end. The dripping water from the water draining portion 10c is used as the water supply / drainage hole 3 of the cleaning tank.
It can be discharged via d. Above the water draining portion 10c is a draining plate 1 having a mesh that allows the pellets to pass therethrough.
It is covered with 0d.

(Other Structures Attached to Cleaning Tank) A warm air supply port 3d is provided on one side of the pre-cleaning chamber 3b, and a hot air supply hose 35 described later is connected to this protruding portion. ing. Around the vicinity of the upper end portion of the cleaning tank 3, a plurality of ventilation ports 3e for discharging bubbles described below generated in the cleaning tank 3 ...
Are arranged at the same height and at equal intervals. Also, cleaning tank 3
A foam cleaning gutter 3f formed so as to surround the outlet sides of these ventilation openings 3e, ... The cleaning chamber 3a and the foam cleaning gutter 3f are communicated with each other through the ventilation ports 3e described above. As will be described later, the ventilation port 3
e, a foam cleaning gutter 3f, and a cleaning tank lid 7 that covers the cleaning tank
Constitutes the foam processing means 13 (see FIG. 5).

As shown in FIG. 2, a water level sensor 15 is provided at one side of the cleaning tank 3 (on the right side of FIG. 2) to detect that the cleaning water supplied into the cleaning tank has reached a specified water level. is there. This water level sensor 15 has a water level tube 15 at the tip (lower end).
When the washing water that has risen in a reaches the reference water level, a circuit is connected to output a detection signal. Further, a rinse water overflow port 3g is provided at a position near the upper portion of the other side portion of the cleaning tank 3,
An overflow pipe 17 is connected to this overflow port. Overflow port 3g
A sludge 3h for preventing the pellets from overflowing together with the overflow water is attached to the end portion located in the cleaning tank. The overflow pipe 17 is connected to the water supply / drainage means 11 located below.

An auxiliary water discharge port 3i for discharging the auxiliary cleaning water supplied to the cleaning gutter is provided at one side (left side in the drawing) of the outer periphery of the foam cleaning gutter 3f, and the auxiliary water is supplied to this discharge port. The discharge pipe 19 is connected. This auxiliary water discharge pipe 19
The leading end (lower end) of the cleaning auxiliary water can be discharged to the filtering device 27. The filter 27 is filled in the filter 27, and the contaminants floating in the auxiliary water passing through the filter can be removed by this filter 27. The water filtered by the filtration device 27 is filtered water drain pipe 28.
It is possible to drain water to the water supply / drainage means 11 through. In addition,
The filter material 27a needs to be replaced as appropriate to prevent a decrease in the filtration capacity. Further, an auxiliary water supply / drainage port 3k is provided downward in the foam cleaning gutter 3f on the other side of the cleaning tank 3 (on the right side in FIG. 2), and a cleaning auxiliary water supply / drainage pipe 21 is connected to the tip thereof. . The water supply / drainage pipe 21 is connected to the water supply / drainage means 11, and the supply and discharge of the cleaning auxiliary water to the foam cleaning gutter 3f can be regulated by the operation of the valve.

(Structure of Air Lift Pump) The air lift pump 5 is composed of a main body 5a having a small diameter in the lower half of a tubular body, and an air supply port 5b provided in the main body 5a. , 6 are provided upright in the central portion of the cleaning tank 3. The main body 5a has a different diameter in the upper half and the lower half. About 60% of the length from the upper end is the large diameter portion 5c, and the remaining lower portion is the small diameter. It is part 5d. The boundary between the large-diameter portion 5c and the small-diameter portion 5d is gently changed to reduce the fluid resistance. The lower end of the main body 5 is located slightly above the center of the partition plate 9, and the suction port of this lower end is slightly widened so that the mixed fluid can be easily sucked over a wide range. Further, the upper end portion 5e serving as an outlet of the main body 5a has a brim-like shape so that the mixed fluid rising in the main body spreads to the surroundings and is easily discharged. The air supply port 5b is provided in the vicinity of the lower end of the large-diameter portion 5c of the main body, and an air supply pipe 5f formed by extending the air supply port is inclined upward and penetrates the flank of the cleaning chamber 3a. And project outside the cleaning tank. An air supply hose 41 is connected to the protruding end of the air supply pipe 5f.

(Construction of the cleaning tank lid) The cleaning tank lid 7 is the cleaning tank 3
A peripheral portion 7a having an inner periphery that fits with a slight gap on the outer peripheral upper portion, an inverted conical top plate portion 7b, and a handle 7c.
It is made of a single piece. As will be described later, the cleaning tank lid 7 prevents the heat of drying from being dissipated into the atmosphere while being covered with the cleaning tank, and constitutes a foam processing means 13 described later (see FIG. 6).

(Structure of Water Supply / Drainage Means) Next, water supply / drainage means 11
Will be described with reference to FIG. First, a main water supply pipe 63 is connected to a main water supply port 61 provided on the right side of the frame body 1. The main water supply pipe 63 is horizontally arranged in the frame body 1 from the outside toward the lower part of the central portion of the cleaning tank 3, and is connected to the cross pipe joint 65 connected to the water supply / drainage hole 3c of the cleaning tank 3 there. is there. The main water supply pipe 63 has a cleaning tank 3
A main water supply valve 67 for restricting the supply of washing water into the inside is provided. On the upstream side of the main water supply valve 67 in the main water supply pipe 63, a water supply branch pipe 71 is connected via a first T-shaped pipe joint 69. In the water supply branch pipe 71, a water supply adjusting valve 73, a second water supply valve 75, a second T-shaped pipe joint 77 and a second drain valve 79.
Are arranged in sequence. To the second T-shaped pipe joint 77, the water supply / drainage pipe 21 connected to the above-described foam cleaning gutter 3f is connected. A drain branch pipe 81 is connected to the downstream side of the second drain valve 79. Also, at the other connection port of the cross pipe fitting 65,
The third drainage pipe 83 is connected, and the tip thereof is connected to the irregular cross pipe joint 85. The third drainage pipe 83 is provided with a main drainage valve 87, which operates in association with the main water supply valve 67 to regulate the supply and drainage of cleaning water or the like in the cleaning tank 3.

A vertical thin pipe 89 is connected to the downward connection port of the cross pipe joint 65, and a throttle valve 91 for appropriately flowing the water accumulated in the cross pipe joint to the main drain pipe 95 is provided at the lower end portion thereof. Is provided. Furthermore, a diversion drain pipe 93 is connected to the connection port of the throttle valve 91, and the tip of this diversion drain pipe is connected to a third T-shaped pipe joint 96 provided at one end of the main drain pipe 95. Further, a third drain valve 97 is provided in the branch drain pipe 93. The above-mentioned third drain pipe 83 is connected to the right side connection portion of the above irregular cross pipe joint 85,
The outlet pipe 2 of the above-described filtering device 27 is provided at the connection port facing the left back.
8 is connected. The upper end of the irregular cross pipe joint 85 is connected to the lower end of the overflow pipe 17 whose upper end is connected to the overflow port 3g. Further, the downward connection port of this irregular cross pipe joint 85 is connected to the third T-shaped pipe joint 96 provided in the main drain pipe 95 described above. The drain branch pipe 81 is connected to the fourth T-shaped pipe joint 98 provided on the downstream side of the third T-shaped pipe joint 96.
With the above configuration, the overflow pipe 17, the filtered water drain pipe 28, the drain branch pipe 81, and the diversion drain pipe 93 can always drain water regardless of opening / closing of the main drain valve 87.

(Structure of Foam Processing Means) Foam processing means 13
Has a function of crushing the foam discharged from the above-described ventilation port 3e to the foam cleaning gutter 3f with the water pressure of the cleaning auxiliary water to remove the dirt component contained in the foam and to release the air in the foam to the atmosphere. To do. The foam processing means 13 is a temporary structure that is formed by covering the cleaning tank 3 with the cleaning tank lid 7 and passing auxiliary cleaning water through the foam cleaning gutter 3f.
As shown in FIG. 6, the foam treatment means 13 includes a cleaning aid in the ventilation port 3e, the top plate portion 7b of the cleaning tank lid, and the foam cleaning gutter 3f when the cleaning tank 3 is covered with the cleaning tank lid 7. Foam passage 2 formed by the interposition of water and the peripheral portion 7a of the cleaning tank lid
2 and. Since the foam passage 22 disappears when the cleaning tank lid 7 is removed, the foam processing means 13 is no longer established in the open state.

The foam passage 22 is provided in the cleaning tank 3 as described above.
This is true when the cleaning tank lid 7 is covered with the cleaning tank lid 7, but first, in this state, the inner peripheral surface of the peripheral portion 7a of the cleaning tank lid faces the upper outer peripheral surface of the cleaning tank to form a space c. To do. The lower end of this peripheral portion is formed with a gap d having substantially the same size as the above-mentioned gap c with the bottom surface of the cleaning gutter 3f. In addition, the peripheral portion 7 of the cleaning tank lid
Between the outer peripheral surface of a and the inner peripheral surface of the cleaning gutter 3f, a groove portion f having a width larger than the interval c is defined. The foam passage 22 is formed as a continuation of the above-described gap c, gap d, and groove f formed in the cleaning gutter 3f when the cleaning tank lid 7 is covered. This interval c is
Since the plurality of ventilation ports 3e communicates with the inside of the cleaning tank 3, when the pressure in the cleaning tank becomes high, the air in these foams causes the cleaning auxiliary water flowing through the foam passage 22 from the ventilation ports. It can be released through the air into the air. Therefore, if the cleaning auxiliary water passes through the foam passage 22, the foam containing the dirt component will pass through the water when passing therethrough, so that the foam is crushed by the water pressure. As a result, the internal air is released into the atmosphere from the surface of the auxiliary cleaning water, some of the dirt components contained in the foam are released into the atmosphere together with the air, and the rest is dissolved in the auxiliary cleaning water. It is adapted to be discharged to the filtering device 27 from the auxiliary water discharge port 3i.

The auxiliary cleaning water is supplied to the cleaning gutter 3f by closing the second drain valve 79 of the water supply / drainage means 11 and opening the second water supply valve 75 (see FIG. 5).
The supply amount of cleaning auxiliary water can be adjusted by the water supply adjusting valve 73, but if the water level in the foam cleaning gutter 3f rises above the specified water level due to the continuous supply of auxiliary water, the auxiliary water discharge port 3i It can be discharged through the auxiliary water discharge pipe 19. When cleaning auxiliary water is not required, such as in the drying step, the second water supply valve 75 is closed and the second drain valve 79 is opened, so that the main auxiliary water is supplied via the auxiliary cleaning water supply / drain pipe 21 and the drain branch pipe 81. Water can be drained from the water pipe 95.

(Structure of Pellet Storage Means) As shown in FIG. 3, the pellet storage means B comprises a storage tank 101 and a means for supplying and discharging the pellets P stored inside. The storage tank 101 is supported by the supporting legs 102 and 102, and the bottom plate portion 103 is provided in an inclined shape that lowers the pellet discharge port 105 side. When this discharge port is opened, the pellets being stored are along the slope. It can be naturally discharged. The pellet discharge port 105 includes an opening / closing shutter 109 that is opened / closed by a lever 107 on a discharge gutter formed by extending the bottom plate portion 103 to the outside of the storage tank. The upper end of the storage tank 101 is covered with an upper lid 125, and this lid is hermetically sealed so as to maintain airtightness in the tank. The position of the pellet discharge port 105 is higher than the height of the distribution bucket 301, and the height is such that the pellets can be distributed by natural fall simply by opening the opening / closing shutter 109. A pressure reducing port 111 connected to the air supply / exhaust means C is provided in the central portion of the upper lid 125, and a dustproof filter 113 is attached to the back side of the upper lid so as to cover the pressure reducing port. As the dustproof filter 113, a thick cloth similar to that used in a normal large vacuum cleaner is adopted so that pellets and dust in the tank are not sucked into the air supply / exhaust means C.

A pressurizing port 115 for adjusting the pressure inside the tank is provided near the upper end of the storage tank 101 (to the left of the dustproof filter 113), and the inside of this pressurizing port is covered with a filter 117. There is. The pressure port 115 is a pressure pipe 119.
It is connected to the blower main pipe 231 via. Pressure port 11
No. 5 is adjustable in pressure so as to increase the pressure in the tank by opening the pressurizing valve 121. this is,
By maintaining the pressure in the storage tank equal to or higher than the pressure in the cleaning tank 3, water and pellets can be prevented from entering from the cleaning means A during air blowing. Below the pressurizing port 115, a carry-in port 123a of the pellet carrying pipe 123 is provided, from which the processed pellets in the cleaning tank 3 are passed through the pellet carrying pipe to the storage tank 101.
It can be brought in and stored.

(Structure of Air Supply / Exhaust Means) As described above, the air supply / exhaust means C is composed of the blower 201, which is the heart, and the valve pipes for enabling the action of the blower. Blower 201
A suction main pipe 221 is connected to the suction port 203, and a discharge main pipe 231 is connected to the discharge port 205. At an intermediate position of the suction main pipe 221, an exhaust pipe 22 integrated with the pressure reducing port 111 via a first T-shaped joint 222.
3 is connected. A pressure reducing valve 225 for regulating the vacuum pressure in the tank is attached to the exhaust pipe 223. Further, the suction main pipe 221 is provided with a suction valve 227 that regulates the depressurization in the storage tank 101. Further, a suction filter 2 is provided at the most distal end of the suction main pipe 221.
29 is provided.

First, a pressure pipe 119 integral with a pressure port 115 for pressurizing the storage tank is connected to the discharge main pipe 231 via a second T-shaped joint 233. A branch pipe 239 is connected to the discharge main pipe 231 on the downstream side of the second T-shaped joint 233 via a third T-shaped joint 235. A heater 241 is connected to the branch pipe 239, and the warm air supply hose 3 described above is provided downstream thereof.
5 is connected. Further, the second branch pipe 240 is connected to the fourth T-shaped joint 237 provided on the downstream side of the third T-shaped joint 235 in the discharge main pipe 231, and the supply air to the air lift pump 5 is connected to this. An air pump control valve (hereinafter referred to as “air valve”) 43 for controlling is provided. The air supply hose 41 described above is connected to the outlet side of the air valve 43. Further, on the downstream side of the fourth T-shaped joint 237 of the discharge main pipe 231, an opening valve 243 for restricting discharge of intake air generated when the inside of the tank is evacuated is provided. At the end of the discharge main 231, the storage tank 10
A back pressure adjusting valve 245 is provided for adjusting the amount of air supplied from the warm air supply hose 35 into the cleaning tank 3 by restricting the air discharged from the main pipe 231 when decompressing the inside of 1.

(Cleaning Method and Operation) Next, a method of cleaning pellets and a method of transporting treated pellets by this apparatus will be described in order.

(Preparation Step) First, as shown in FIG. 2, a predetermined amount of pellets to be cleaned is put into the cleaning tank 3 using a charging hopper (not shown) with the cleaning tank lid 7 removed. Put it in, put a predetermined amount of detergent on it, and cover with the washing tank lid. At this time, all the valves of the water supply / drainage means 11 (see FIG. 5) are closed, and all the control valves of the air supply / exhaust means C (see FIG. 3) are also closed.
As shown in FIG. 5, when the cleaning tank lid 7 is covered on the cleaning tank 3 and a start switch (not shown) is turned on, the main water supply valve 6
7 and the second water supply valve 75 are opened to start water supply to the cleaning tank 3. When the main water supply valve 67 is opened, the cleaning water introduced from the main water supply port 61 is supplied to the cleaning prechamber 3b through the main water supply pipe 63. This cleaning water further enters the cleaning chamber 3a through the through holes 9a, ... Provided in the inverted conical plate surface of the partition plate portion 9 and enters a fluid that can flow integrally with the pellets to be cleaned (hereinafter referred to as " Mixed fluid "). The cleaning water is also supplied to the air lift pump 5, the air supply hose 41, and the warm air supply hose 35.
The cleaning chamber 3a is filled with the same horizontal surface. When the water level sensor 15 detects that the water level rising in the cleaning chamber 3a has reached the upper limit, the main water supply valve 67 is closed upon receiving this output signal. If the cleaning water rising in the cleaning chamber 3a exceeds the specified water level or the water level in the cleaning tank 3 rises abnormally,
Since the residual purified water overflows from the overflow port 3g, the water level never exceeds a predetermined level.

In parallel with the supply of cleaning water into the cleaning tank 3,
The second water supply valve 75 is opened, and the water supply / drain pipe 21 is connected to the foam cleaning gutter 3
Cleaning auxiliary water is supplied into the inside of f. As a result, the above-described foam gutter 22 is formed by the cleaning gutter 3f, the peripheral portion 7a of the cleaning tank lid, and the auxiliary water (see FIG. 6). On the other hand, the storage tank 101 that constitutes the pellet storage means B
Increase the pressure inside. This operation is performed by starting the blower 201, opening the pressurizing valve 121, and supplying air from the air supply / exhaust means C into the storage tank 101 (see FIG. 3). This is because the pressure in the cleaning tank rises due to the air blown into the cleaning tank 3 during the cleaning step and the drying step, but if the pressure in the storage tank 101 is low at this time, the transfer hose 123 will cause a loss of pressure. Wash pellets and wash water may flow in. In order to prevent such an inflow, the pressure in the storage tank 201 is increased so as to be higher than the blowing pressure to the cleaning means A.

(Washing Step) Next, the washing step will be described with reference to FIG. When the wash water reaches the specified water level, the detection signal from the water level sensor 15 causes the main water supply valve 67 to close and the blower 201 to start, and at the same time, the air valve 43.
Opens, and air is supplied to the large diameter portion 5c from the air supply port 5b of the air lift pump. At this time, the air supply port 5b has already been filled up with the washing water up to the intermediate position of the air supply pipe 5f and the air supply hose 41 connected thereto, but the air supply pressure at this time is It is necessary to allow air to enter the air lift pump 5 against the pressure of the wash water. The air supply pressure is the air supply port 5
If the height from b to the specified water level is 500 mm,
It is desirable to set the air supply pressure to 6 kPa or more in consideration of the specific gravity of the pellet (usually about 1.1) and the flow path resistance of the small diameter portion 5d. At this time, in parallel with opening the air valve 43, the pressurizing valve 121 is opened to increase the pressure in the storage tank 101 (see FIG. 3). This is a measure for preventing the water in the cleaning tank from entering the storage tank 101 via the pellet conveying pipe 123 due to the pressure increase in the cleaning tank 3. In this way, the air of the predetermined supply pressure sent from the air supply hose 41 is blown by the blower pipe 41 and the air supply pipe 5.
The washing water contained in f is pushed back by the pressure of the above air into the large diameter portion 5c of the air lift pump 5. The air in which the cleaning water is pushed back into the air lift pump 5 enters the mixed fluid filled in the large diameter portion 5c, and the bubbles generated by foaming here rise in the large diameter portion. Since this bubble rises while growing, the washing water and pellets in the large diameter portion 5c located above the air supply port are entrained and raised, and discharged from the upper end of the large diameter portion into the washing chamber 3a. .

Further, the air supply port 5b in the large diameter portion 5c
In the vicinity of, due to the foaming action by the supply of air from the air supply hose 41, the mixed fluid rises, so that a hollow state occurs. In the part where the pressure is reduced due to this hollow state,
In order to compensate for this, the mixed fluid in the small diameter portion 5d rises, and the reproduction of bubbles continues. Further, since the lower end portion of the small diameter portion 5d is replenished by suctioning the cleaning water and the pellets near the lower end portion of the cleaning chamber 3a, it flows in the outer peripheral portion of the cleaning tank 3 as indicated by the black arrow in the cleaning chamber. The forced circulation effect occurs in which the water drops. While being forcedly circulated in this way, the pellets to be washed are washed by violently contacting the foam containing the detergent, and the dirt component produced by the washing is accumulated on the water surface together with the foam. The accumulated amount of these bubbles gradually increases as the air supply continues, and rises while spreading to the surroundings along the slope of the top plate portion 7b of the cleaning tank lid 7.

In this way, these bubbles are generated by the top plate portion 7 of the cleaning tank lid 7 as the pressure in the tank increases due to the continuous supply of air.
It moves to the outer peripheral part along the inverted conical surface of b, and each ventilation port 3e,
Is discharged from the tank through the foam processing means 13. That is, these foams are forcedly passed through the cleaning auxiliary water of the foam cleaning gutter 3f through the foam passage 22 from an arbitrary ventilation port 3e (see FIG. 6). In this foam cleaning gutter 3f,
During the cleaning process, the second water supply valve 75 of the water supply branch pipe 71 is opened, so that clean cleaning auxiliary water is always supplied from the water supply / drainage means 11 through the water supply / drainage pipe 21. The foam discharged to the foam cleaning gutter 3f is crushed by the water pressure by passing through the cleaning auxiliary water in the foam passage 22, and the air in the foam becomes a gas and is discharged from the surface of the cleaning auxiliary water into the atmosphere. . The remaining foam and dirt components contained in the foam mix with the cleaning auxiliary water and flow in the foam cleaning gutter 3f, and the auxiliary water discharge port 3
i, the water is discharged to the filter device 27 through the auxiliary water discharge pipe 19. The drainage filtered by the filtering device 27 is discharged from the main drainage pipe 95 through the filtered water drainage hose 28, the irregular cross pipe joint 85, and the third T-shaped pipe joint 96.

When the predetermined time set in the cleaning process has elapsed, the blower 201 is stopped and the cleaning operation is completed. Therefore, the main drain valve 87 and the third drain valve 97 are opened, and the cleaning water remaining in the cleaning tank 3 is drained through the water supply / drain hole 3c, the cross pipe joint 65, the irregular cross pipe joint 85, and the third T-shaped pipe joint 96. It is discharged from the pipe 95 to the outside. At this time, the second water supply valve 75 is closed and the second water discharge valve 79 is opened in parallel with the above-described drainage operation, whereby the cleaning auxiliary water in the foam cleaning gutter 3f flows backward from the water supply / drainage pipe 21 and flows down. , Through the second T-shaped pipe joint 77 and the drain branch pipe 81, and is discharged from the main drain pipe 95.

(Rinse Step) Next, in FIG. 5, the main drain valve 87 and the third drain valve 97 are closed, the main water supply valve 67 is opened, and the main water supply port 61 is rinsed by the same operation as the above-described water supply step. Water is introduced into the cleaning tank 3. When the water level in the cleaning tank 3 reaches a predetermined height position, the blower 201
Then, the air is forcibly fed into the air lift pump 5 from the air supply port 5b. Then, similarly to the above-described cleaning step, the pellet rinsing process is performed by forcibly circulating the mixed fluid composed of rinse water and the cleaned pellets. Since the supply of air to the air lift pump 5 and the supply of rinse water to the cleaning tank 3 are continuously performed, the forced circulation action in the cleaning chamber 3a is continuously performed, and excess water is drained from the overflow port 3g. To be done.
In this way, by continuously supplying the rinse water and the air from the lower side, bubbles and dirt that are separated from the pellets one after another are sent out upward. The dirty rinse water becomes the above-mentioned excess water and is discharged from the overflow port 3g through the overflow pipe 17 together with the detergent and dirt components contained in the rinse water. When the rinsing step is completed due to the lapse of the set time of the rinsing step, thereafter, the rinsing water is drained by the same operation as the drainage in the cleaning step. In this description, water is not passed through the foam cleaning gutter 3f during the rinsing process.
When the amount of foam generated is large, the cleaning efficiency may be improved so that water is passed through the rinsing process.

(Drying Step) Next, the drying step will be described with reference to FIG. When the drainage of the rinse water is completed, the main drain valve 87, which has been open so far, is closed and the preparation for the drying process is started. Here, the blower 201 rotates, and at the same time, the air valve 43
Closes. Next, the switch of the heater 241 is turned on, whereby warm air is supplied to the pre-cleaning chamber 3b after draining water through the warm air supply hose 35. At this time as well, the pressurizing valve 121 is open, and the pressure in the storage tank 101 is higher than the pressure for supplying warm air, so there is no possibility that warm air will flow from the cleaning tank 3 into the tank. .
As indicated by the large arrow in the figure, this warm air passes through the through holes 9a, ... Of the partition plate portion 9 and the gap between the washed (rinsed) pellets accumulated in the washing chamber 3a and the air lift pump 5. Pass through and rise. Further, this warm air rises through the space formed upward from the upper surface of the accumulated pellets after draining, and hits the lower surface of the top plate portion 7b of the cleaning tank lid 7.
Further, this warm air flows while spreading to the outer peripheral portion along the inverted conical surface of the top plate portion 7b, passes through each ventilation port 3e, ... And passes through the foam cleaning gutter 3f into which the cleaning auxiliary water does not flow to the atmosphere. Dissipated. As described above, by covering the cleaning tank 3 with the cleaning tank lid 7, the warm air is prevented from being dissipated and the upward heat radiation is prevented, so that the drying efficiency is high (see FIG. 6). .

At the beginning of the drying process, a large amount of water still exists between the pellets.
It may collect in the downward portion of the cross pipe joint 65 via the pre-cleaning chamber 3b. This accumulated water is used in the drying process.
When vaporized by warm air, the heat of vaporization is removed, and this vapor passes between the pellets to be dried, which causes a decrease in drying efficiency. Therefore, it is appropriately extracted. This drainage is performed from the vertical thin tube 89 through the throttle valve 91,
The water is appropriately drained through the distribution pipe 93 and the main pipe 95 (see FIG. 5). When the humidity sensor (not shown) detects that the washed pellets in the cleaning tank 3 are completely dried, the blower 201 is stopped and the heater 241 is turned off to end the drying process. At the same time, the pressurizing valve 121 is closed and the pressure reducing valve 225 and the suction valve 227 and are opened to return the pressure in the storage tank to the atmospheric pressure level.

(Conveying Step) Next, the conveying step will be described with reference to FIG. The suction valve 227 is closed, and the blower 2
When 01 rotates, the air in the storage tank 101 is discharged from the decompression port 111 to reduce the pressure, and the pellet transfer process starts. At this time, the pressurizing valve 121 and the air valve 43 are also closed, but the opening valve 243 is open.
As the blower 201 continues to rotate, the pressure in the storage tank gradually decreases. Eventually, the pellet P in the cleaning tank 3 is sucked from the transfer hose 123, passes through this transfer hose, and then the transfer port 1
23a is discharged into the tank 101. Storage tank 10
The pressure in 1 is carried out by exhausting from the pressure reducing port 111, but since the filter 113 is provided on the upper lid 125 so as to cover this pressure reducing port, pellets and dust are blocked by this and remain in the tank. Be done.

The suction of the pellets in the washing tank 3 is performed by the pellet discharge port 10a connected to the transfer hose 123.
Is performed by suctioning the pellets in the pellet concentrating portion 10 with a vacuum pressure (see FIG. 4). Pellets accumulated on the funnel-shaped partition plate portion 9 are sequentially collapsed and replenished in the blank portion generated by the pellet suction in the pellet concentration portion 10, so that the suction operation is continuously performed.

During the pellet conveying process, the blower 201 is rotated to reduce the pressure in the storage tank 101, but the pressure generated by the blower 201 in the main pipe 231 (hereinafter referred to as "back pressure") becomes warm. It is supplied into the pre-cleaning chamber 3b through the air supply hose 35. The air sent into the pre-cleaning chamber passes through the plurality of through holes 9a of the partition plate 9 and enters the cleaning chamber 3a to increase the pressure in the cleaning chamber. On the other hand, in the cylindrical pellet concentrating portion 10, except for the upper entrance,
Since the cleaning chamber 3a is disconnected from the cleaning chamber 3a, the pressure difference between the pellet discharge port 10a and the pellet discharge port 10a increases due to the high-pressure inlet portion and the suction pressure of the pellet conveying pipe 123. Therefore, the wind that has passed through the partition plate portion 9 is a low pressure pellet concentration portion 10
Since it flows in a short circuit toward the upper inlet, air concentrates in a range closer to the upper inlet, so that the flow velocity becomes faster and the pellets are easily delivered. by the way,
The treated pellets accumulated in this vicinity are pressed by the upper pellets accumulated in the cleaning chamber, so that the pellets are hardened to each other so that a so-called shelf is easily formed. However, since the strong air toward the pellet concentrating portion is concentrated in this vicinity by the non-heated air blowing, the pellet is not easily provided with a so-called shelf and the pellet is forcibly sucked to facilitate the delivery of the pellet. The back pressure sent from the warm air supply hose 35 is preferably adjusted to an appropriate strength by the back pressure adjusting valve 245.

When all the treated pellets in the cleaning tank 3 are transferred to the storage tank 101, the transfer process is completed. The blower 201 is stopped by the end of the transfer process,
Move to the next preparation step. As a result, the valves of the water supply / drainage means of the cleaning means A, the control valves of the air supply / exhaust means C, etc. are closed. The present invention produces special effects by organically combining the above-mentioned three means, and particularly "Table 1"
As described above, the operations of the plurality of control valves belonging to the air supply / exhaust means are combined to promote the cleaning / rinsing, drying, and carrying steps. The opening / closing operation of these control valves may be performed by a control device (not shown).

[0050]

[Table 1]

The constituent elements in the above description are not limited to the above-described ones, but may be adapted to the respective conditions. In particular, the structure of the water supply / drainage means and the storage tank can be modified in various ways.

[0052]

Industrial Applicability According to the present invention, an air lift pump is used to clean pellet abrasives capable of cleaning a large amount of pellets at a time, and pellet storing means for storing washed pellets through intake and exhaust means. A large amount of pellets can be washed at the same time, and the pellets can be stored in the pellet storage means. Therefore, it contributes to the ease of managing the pellet abrasives in a large-scale pachinko game hall. Further, since the pellet concentration portion is provided in the central portion of the partition plate portion where the washed pellets are most likely to be collected, suction of the pellets is facilitated and the transport efficiency is improved. Furthermore, when the pressure in the washing tank is high in the steps of washing, rinsing, and drying, the pressure in the pellet storage means is also set to be higher than this, so that water etc. is washed through the pellet transfer pipe. It is possible to prevent the tank from flowing into this tank.

The air supply / exhaust means has four functions such as blowing air to the air lift pump in the cleaning and rinsing steps, supplying hot air to the cleaning tank in the drying step, and pressurizing the pellet storage means. Since these four functions can be handled by a single blower by the operation of a plurality of control valves, the work efficiency can be improved. Further, the manufacturing cost can be reduced by simplifying the configuration as described above. In particular, in the transfer process, the pressure in the washing tank is increased simultaneously with the depressurization in the tank through the hot air supply pipe, and the transfer of pellets in the pellet concentration part can be facilitated, so that the transfer efficiency is increased. .

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing the entire structure.

FIG. 2 is a front view of a partially cutaway cross section showing a configuration on a pellet cleaning means side.

FIG. 3 is a front view of a partially cutaway cross section showing a configuration of a pellet storage means and an air supply / exhaust means.

FIG. 4 is an enlarged sectional view showing a state of a pellet concentrated portion and its surroundings.

FIG. 5 is a partially cutaway front view showing a state in which cleaning and rinsing operations are being performed in the cleaning tank.

FIG. 6 is an explanatory diagram showing a configuration of a foam processing unit.

FIG. 7 is a partially cutaway front view showing a state in which a drying operation is performed in the cleaning means.

FIG. 8 is a partially cutaway front view showing a state during a pellet conveying step.

[Explanation of symbols]

A Pellet cleaning means B Pellet storage means C air supply / exhaust means P pellet 1 frame body 3 cleaning tank 3a Washing room 3b Washing preparatory room 3c Water supply / drainage hole 5 Air lift pump 5b Air supply port 5f air supply pipe 7 Cleaning tank lid 9 Partition plate 9a through hole 10 Pellet concentrated area 11 Water supply and drainage means 13 Foam processing means 35 Hot air supply hose 41 Air supply hose 43 Air valve (air pump control valve) 101 storage tank 111 Decompression port 121 Pressurizing valve 123 Pellet carrier pipe 123a carry-in entrance 225 pressure reducing valve 227 Suction valve 241 heater 243 open valve

Claims (7)

[Claims] 1. A pellet cleaning means for performing processing such as cleaning, rinsing and drying of polishing pellets, a pellet storage means for storing processed pellets conveyed from the pellet cleaning means, the pellet cleaning means and the pellets. A pellet abrasive cleaning and storage device comprising a storage means and an air supply / exhaust means for controlling air supply / exhaust means, wherein the pellet cleaning means has a partition chamber having a plurality of through-holes and a cleaning chamber and a cleaning chamber. A cleaning tank partitioned into a chamber, a water supply / drainage unit for controlling the water supply / drainage of the cleaning tank, and an air supply from the air supply / exhaust unit in the cleaning chamber to forcibly circulate the cleaning water in the cleaning tank. An air lift pump is provided, and the pellet storage means is a storage tank whose internal pressure can be adjusted, and pellets for carrying in processed pellets from the cleaning tank. And a feed pipe, the supply and exhaust means includes a blower, a plurality of control valves and, it and a heater for the hot air generator cleaning and storage device of the pellets abrasive characterized. 2. The partition plate portion according to claim 1,
The outer peripheral portion is formed in an inverted conical shape in contact with the inner peripheral portion of the cleaning tank, the central portion thereof is provided with a pellet concentration portion formed by hanging a predetermined range in a cylindrical shape, and one side portion of this concentration portion. Is a pellet abrasive cleaning and storage device characterized by having a pellet discharge port. 3. The pellet storage device according to claim 1 or 2, wherein the pellet storage means is capable of adjusting the pressure in the storage tank by a pressurizing valve that constitutes the air supply / exhaust means. Abrasive cleaning and storage device. 4. The air supply / exhaust means according to claim 1, wherein the air supply / exhaust means supplies air to the air lift pump, supplies hot air to the cleaning tank, and stores the air with a single blower. An apparatus for cleaning and storing pellet abrasives, wherein pressure in the tank and pressure for transporting the pellets from the cleaning tank to the storage tank are set to be bearable. 5. A method of cleaning and conveying pellet abrasives using the apparatus for cleaning and storing pellet abrasives according to claim 4, wherein pellets to be cleaned and detergent are put into the cleaning tank, and the cleaning tank is washed. A preparatory step of covering with a lid, a predetermined amount of cleaning water is supplied from the water supply / drainage means to the cleaning tank, and air of a predetermined pressure is supplied from the air supply port of the air lift pump by the air supply / exhaust means to clean the pellets to be cleaned. A washing step of washing, a rinsing step of supplying air to the air lift pump to clean the washed pellets while supplying rinsing water to the washing tank containing the washed pellets, and warm air from the air supply / exhaust means. A drying step of drying the rinsed pellets in the cleaning tank by supplying warm air into the cleaning tank via a supply hose, and depressurizing the storage tank to remove the pellets. Cleaning and method of transporting pellets abrasive material characterized by comprising a transporting step through the door conveying tube store conveys the treated pellets to the storage tank from the washing chamber. 6. The pellet abrasive according to claim 5, wherein the pressure in the storage tank is increased to a pressure higher than the pressure in the cleaning tank during the cleaning step, the rinsing step and the drying step. Cleaning and transportation method. 7. The pellet abrasive according to claim 5 or 6, wherein during the carrying step, non-heated air is blown to the cleaning prechamber at a predetermined pressure via the warm air supply hose. Cleaning and transport method.