JPS60213631A - Granule storage shed - Google Patents

Abstract

PURPOSE:To carry out a large quantity of granules by shifting a mole proper having a screw conveyor on the floor surface of an oblong casing along a transport conveyor. CONSTITUTION:The floor surface 12 of a casing 9 is formed in an oblong shape with unequal longitudial/latitudinal lengths, and both side faces 13 are formed in parallel and at the same distance to each other so that the end section of the mole proper 11 can be moved near them. A transport conveyor 10 is longitudinally extended and arranged below the floor surface 12 so that granules can be smoothly fed to it from the screw conveyor 21 of the mole proper 11. The mole proper 11 is arranged reciprocatively movably along the transport conveyor 10 on the floor surface 12 so as to scrape off rubble ice from the bottom and feed it to the transport conveyor 10.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention mainly relates to a storage for powder and granular materials that can be smoothly transported even for powder and granular materials that tend to combine during storage, such as crushed ice.

A. Prior Art Figures 1 and 2 show crushed ice storage that has been in use for many years. This storage is equipped with a Reiki conveyor 2 that levels the crushed ice fed from the ice maker 1 horizontally, scrapes off the crushed ice from the top surface, and sends it to a screw conveyor on one side. A shielding plate 4 is provided above 3 to provide a gap for falling crushed ice.

When supplying crushed ice to this water storage tank, that is, during the ice-making operation process, as shown in Figure 1, the ice-making machine 1 is operated and crushed ice is stored in the water tank approximately once every 30 minutes. Fall into the warehouse. Two Reiki conveyors are driven from left to right as shown by the arrows in Figure 1, and the crushed ice is uniformly leveled into the water storage. In this case, the Reiki'41 conveyor 2 is suspended from the upper winch 5, and is automatically adjusted to such an extent that the lower Reiki comes into contact with the crushed ice. Four shielding plates are lowered and shielded as shown in Figure 1 to prevent broken ice from collapsing and falling onto the screw conveyor 3.

When taking out crushed ice from this water storage, as shown in Fig. 2, the shielding plate 4 is rotated, the Reiki conveyor 2 is reversed and driven in the direction of the arrow in Fig. 2, and the crushed ice is transferred to the screw conveyor. It is dropped onto r3 and discharged by screw conveyor 3.

Since this water reservoir discharges crushed ice from the upper part while being scraped by the Reiki conveyor 2, it can be operated with a small horsepower, and it has a proven track record of several years and is reliable as a device. However, since crushed ice is supplied from the top and discharged from the top, the crushed ice at the bottom remains for a long time unless the reservoir is emptied, and the crushed ice in this area becomes extremely hard sheet ice, making it impossible to drain. Become. Therefore, it cannot escape the disadvantage that operation is limited to within restricted conditions. Further, according to this structure, when the entire device becomes large-sized, the frame of the Reiki conveyor 2 becomes very large, making it difficult to construct on-site, and the up-and-down device of the Reiki conveyor 2 also becomes large and extremely expensive. .

The present inventor has developed a water reservoir shown in FIG. 3 as a device to eliminate this drawback. (Japanese Unexamined Patent Publication No. 57-1130) The water storage shown in Fig. 3 has a bottom plate 6 with a round shape, a number of crushers 7 are provided in the center extending vertically, and the crushers 7 are installed in the bottom. A longitudinal screw 8 is provided in parallel. This device can only store 15 tons of water, and it was confirmed that it would be extremely difficult to manufacture anything larger than that. There is a limit to the length of the vertical screw 8 and crusher 7, and if a bearing is provided for the vertical screw 8 or crusher 7 in the middle, this causes the ice to break or bridge, resulting in the ice not being ejected. Vertical feed screw 8
If the length of the crusher I or the crusher I is too long, the intermediate portion may sag and the crushers 7 may come into contact with each other, or the crusher 7 and the vertical screw 8 may come into contact with each other, resulting in a failure.

B1 Structure and Purpose of the Present Invention The present invention was developed with the aim of eliminating this drawback, and includes a vertical conveyor extending vertically below the floor of the casing, and A mole body equipped with two screw conveyors that intersect with each other, that is, extending in the width direction of the casing, is mounted on the floor so as to be movable in the longitudinal direction of the vertical conveyor, and this mole body is moved in the longitudinal direction of the storage chamber. The casing is configured to take out the powder and granular material inside the casing by reciprocating the casing.An important objective of the present invention is to make the casing longer in the length direction than in the width, thereby achieving a large capacity at a very low cost. To provide a storage for powder and granular material, which can be manufactured at a low cost, and can be manufactured at a low cost.

Another important object of the present invention is that even if the casing is lengthened to increase the storage capacity, only the power of the vertical conveyor increases; even if the storage capacity is large, the required power is small, and less energy is required. To provide a storage for powder and granular materials that can transport a large amount of powder and granular materials.

Furthermore, an important objective of the Noh of the present invention is that it can be constructed by simply installing a screw conveyor on the floor and mounting the mole body on the floor, so if necessary, it can be stored in an existing building. It is also possible to provide storage for granular materials.

C0 preferred embodiment Embodiments of the present invention will be described below based on the drawings.

(8) The granular material storage shown in FIGS. 4 and 5 shows an embodiment in which the stored granular material is crushed ice. This storage includes a casing 9 for storing the required amount of crushed ice, and a casing 9 for storing the required amount of crushed ice.
The mole body 11 is provided with a vertical conveyor 10 disposed therein, a mole body 11 for sending crushed ice to the vertical conveyor 10, and a moving means for moving the mole body 11.

The casing 9 has a horizontal or almost horizontal floor surface 12, and the floor surface 12 has an unequal aspect ratio and is formed in a vertically elongated shape.
The side surfaces 13 located on the left and right sides of the casing 9 in FIG.
-, a crushed ice supply port 15 is opened in the section.

The casing 9 is heat-insulated to prevent the crushed ice inside from melting, and is equipped with a cooler 1 that cools the internal air to below 0°C.
4 is installed. The inner surface 13 of the casing 9 is
To prevent broken ice from causing bridging, the entire circumference is vertical or slightly flared.

The upper part of the casing 9 has a leveling conveyor 17 for leveling the crushed ice sent from the ice maker 16. Leveling conveyor 17&''i, the crushed ice that was sent is piled up partially ~
Level the crushed ice to prevent it from rising.

The casing 9 shown in FIG. 4 has a crushed ice supply port 15 opened at the upper right end. Therefore, the leveling conveyor transports the crushed ice from right to left and levels it horizontally.

The leveling conveyor 17 shown in FIGS. 4 and 5 has a Reiki board 20 connected to two chains 19 driven by a sprocket wheel 18, and in FIG. The crushed ice is leveled with a moving Reiki board 20.

The storage shown in FIG. 4 includes an ice maker 16 on the casing,
A fixed amount of crushed ice is intermittently fed from the ice maker 16.

The vertical conveyor 10 disposed at the bottom of the casing 9 is a screw conveyor, as shown in FIGS. 5 and 6, so that crushed ice on the floor is smoothly fed from the screw conveyor 21 of the mole body 11. , is located below the floor surface 12 and extends vertically, and has a drop port 2 above.
2 is opened and crushed ice on the floor surface 12 is dropped.

As shown in FIGS. 5 and 6, the vertical conveyor 10 is
Preferably, it is disposed in the center of the floor surface 12 in a vertically extending manner.

According to this structure, the crushed ice is sent in opposite directions on average from the left and right sides of the screw conveyor 21 of the mole body 11, and the reactions of the crushed ice transfer balance each other and apply extra force in the axial direction to the screw conveyor 21 of the mole body 11. I won't let you. Therefore, the mole body 11 has the advantage of being able to move smoothly.

The vertical conveyor 10 does not have a screw conveyor,
Any conveyor capable of transporting powder or granules, such as a belt conveyor, can also be used.

As shown in FIG. 4, one end of the vertical conveyor 10 is communicated with a discharge port 23, and the crushed ice is carried out of the casing from the discharge port 23.

The vertical conveyor 10 is connected to a drive means 25 disposed in a machine room partitioned by a partition plate 24 and driven to rotate.

By moving itself, the mole body 11
The crushed ice on the floor surface 12 is scraped off from the bottom and transferred to the vertical conveyor 10.
It is disposed on the floor surface 12 so as to be able to reciprocate along the vertical conveyor 10 so as to feed the conveyor.

The mole main body 11 is shown in FIGS. 7 and 8, and includes a frame box 26, a screw conveyor 21 disposed parallel to each other on both sides of the frame box 26, and an axis of the screw conveyor 21. and a driving means for rotationally driving the.

As shown in FIG. 8, the screw conveyor 21 has an axis that intersects with the vertical conveyor 10 and is extended in the width direction of the floor surface 12.
Fins 27 spirally formed with opposite pitches on the left and right with the center as a boundary are fixed to the outer periphery of the shaft so as to transfer the crushed ice inside the casing.

The screw conveyor 21 is supported at both ends and the center by a frame box 26 via bearings 28, and a driving sprocket wheel 29 is fixed to both ends. It is connected to the tor 31.

As shown in FIG. 7, the frame box 26 is formed to have a height H lower than the diameter of the fins 27 of the screw conveyor 21 so that the mole body 11 can move smoothly within the crushed ice. Two gear motors 31 are housed in the frame box 26, and the screw conhair 2
By driving 1, the size can be reduced. The two gear motors 31 do not each drive one screw conveyor 21 separately, but each drive two screw conveyors 21. According to this structure,
One screw conveyor 2 scrapes and transfers crushed ice
1 is driven with strong torque by two geared motors.

Sprocket wheels 2 on both ends of screw conveyor 21
9 is covered with Reiki Kaba 32.

The screen and knee conveyor 21 in FIG.
This tararashapin 33 crushes the crushed ice sent above the vertical conveyor 10 by the screw conveyor 21 and causes it to fall into the vertical conveyor 10.

As shown in FIGS. 7, 8, and 9, a traction piece 34 is fixed to the lower surface of the frame box 26, to which a flexible wire of a means for moving the mole body 11 is connected.

As shown in FIG. 9, the traction piece 34 moves within a pit groove 35 provided in the floor surface 12 so as to extend vertically.

The gear motor of the frame box 26 is located in the pit groove 35.
A power supply line 36 that supplies electricity to the engine is also passed through.

The power supply line 36 is wound around a power supply drum 37 as shown in FIG. The power supply drum 37 always pulls the power supply line 36 with a constant torque, and when the mole main body 11 is pulled with a certain amount of force, it is pulled out from the power supply drum 37, and when the mole main body 11 approaches the power supply drum (15, 137) , the feeder line 36 is wound up.

In the mole main body 11 shown in FIG. 10, a driving sprocket wheel 38 is fixed to the center of two screw conveyors 21, and this sprocket wheel 38
It is connected to the output shafts of two geared motors 40 via 9. The output shafts of the two geared motors 20 are connected by a coupling, and both drive the screw conveyor 21.

In the mole main body 11 shown in FIG. 11, a vertical frame 41 is fixed to a frame box 26, and a crusher 42 is fixed to the front and rear of this vertical frame 41. When the mole main body 11 moves, the crusher 42 pushes crushed ice to the longitudinal conveyor 10.
Scrape on top.

The upper end of the vertical frame 41 is always exposed above the crushed ice, and displays where the mole body is located under the crushed ice. According to this structure, in the event that the drive device of the mole main body 11 fails and it becomes impossible to take out the crushed ice (16), the crushed ice near the crusher 42 portion is dropped onto the vertical conveyor 10 using a shovel or the like from above and is discharged. However, it becomes possible to gradually dig out the mole body 11 and open the top cover of the mole body 11 for repair and inspection.

As shown in FIGS. 5 and 6, the means for moving the mole body 11 includes a traction chain 43 made of a flexible wire that can be connected to the traction piece 34 of the mole body 11, and a chain wheel on which the traction chain 43 is hung. 44 and a reversing motor 45 which is a rotating member.

The reversing motor 45 is a deceleration motor capable of reversing the mole body 11 every time it reaches the end of the floor so that the mole body 11 can reciprocate along the floor from one end to the other.

The water storage with the above configuration is operated in the following steps.

■ Stop the movement of the mole body 11 and move the vertical conveyor 10
and start discharging crushed ice.

(2) When the amount of crushed ice transported by the vertical conveyor 10 decreases and the current value of the vertical conveyor 10 falls below a certain value, the screw conveyor 21 of the mole body 11 is activated to send crushed ice to the vertical conveyor 1o.

■ When the amount of crushed ice sent by the screw conveyor 21 of the mole body 11 decreases and the current value of the gear motor 31-40 for driving the screw conveyor 21 of the mole body 11 decreases, the moving means of the mole body 11 is activated. , the mole main body 11 moves in the vertical direction, the screw conveyor 21 sends crushed ice to the vertical conveyor 10, and the vertical conveyor 10 discharges the crushed ice to the outside of the casing 9.

■ When the amount of crushed ice supplied to the vertical conveyor 10 increases and the current value for driving the vertical conveyor exceeds a certain value, the moving means stops, and furthermore, at this time, the screw conveyor 21 of the mole body 11 stops. Alternatively, if the discharge capacity of the screw conveyor is set in advance to a value smaller than that of the vertical conveyor 10, then the screw conveyor 21
does not need to be stopped.

■ When the current value for driving the vertical conveyor 10 decreases again, the mole body 11 is moved.

■ If the current value for driving the vertical conveyor 10 does not increase even if the mole body 11 moves, it means that there is no more crushed ice in that direction, so the reversing motor 45 of the moving means is reversed, and the mole body 11 Reverse the direction of movement. Even when the mole body 11 moves to the edge of the floor surface 12, this is detected by a limit switch (not shown) and the moving direction of the mole body 11 is reversed.

By the way, the crushed ice transfer capacity of the vertical conveyor 10 is preferably designed to be larger than the crushed ice transfer capacity of the screw conveyor 21 of the mole main body 11, and (19) the screw conveyor 21 transfers crushed ice to the vertical conveyor 10 per unit time. The maximum amount that can be sent may be designed to be larger than the amount of crushed ice that is sent to the screw conveyor 21 per unit time by the movement of the mole body 11.

Although the above embodiments have been described in detail for the case where the stored powder is crushed ice, the same structure can also be used for ice powder. However, since crushed ice melts at temperatures above 0°C, it is necessary to insulate the casing or cool the inside of the casing to keep it cold, but in the case of Noh powder and granules, such a structure is not necessary.

D1 Effects of the present invention In the powder storage of the present invention, a vertical conveyor is provided extending vertically on the floor surface, and f3 is provided in a direction intersecting the vertical conveyor.
f. Two elongated screw conveyors are moved along the vertical conveyor to send the stored powder and granules to the vertical conveyor, and the vertical conveyor also discharges the powder and granules (20). There is. For this reason, by making the length of the casing longer than its width, a storage with a large capacity of tens to hundreds of tons can be realized at a very low cost. This means that even if the casing is made longer, the movement distance of the mole itself becomes longer and the overall length of the vertical conveyor becomes longer, so there is no mechanical problem and the capacity can be easily and inexpensively increased. . No matter how long the vertical conveyor is, it can be supported by bearings, so it can be easily extended without sagging in the middle.

Furthermore, even if the total length of the casing is increased to increase the amount of powder and granular material stored, the driving efficiency of the vertical conveyor will only increase.
The moving torque of the mole body and the driving torque of the screw conveyor of the mole body do not increase, and the feature is that powder and granules can be efficiently taken out from a large-volume casing with less power required. This feature is particularly important for large storage volumes. This is because, in conventional storage, the power required for retrieval increases significantly as the storage capacity increases, so for storage amounts of tens to hundreds of tons, the power required for retrieval is very low. It was so large that it was impossible to drive it with Chikara Ogawa's motor.

The vertical conveyor of the present invention sends out/displaces the powder and granules sent in by the screw conveyor of the mole main body, so even if the total length of the conveyor becomes longer, the driving torque remains the same (・1 does not increase, but is extremely large. Equipped with a volumetric effect that allows powder and granular material to be taken out from a large volume storage with a small amount of electricity.

Furthermore, the storage of the present invention can be constructed by simply installing a screw conveyor at the bottom and movably attaching the mole body to the floor, so it can be constructed on-site within an existing building if necessary. It is.

Furthermore, since the stored powder and granules are scraped and discharged by a screw conveyor, it goes without saying that the powder and granules that are combined during storage can be easily and smoothly discharged.

[Brief explanation of drawings]

Figures 1 to 3 are sectional views showing a conventional powder storage, Figures 4 and 5 are sectional views of a storage illustrating an embodiment of the present invention, and Figure 6 is a longitudinal conveyor and a mole body. 7 to 10 are vertical sectional views and plan views of the mole main body, and FIG. 11 is a perspective view of the mole main body and the vertical conveyor showing an embodiment of the pond. 1...Ice maker, 2...Reiki conveyor, 3...Screw conveyor, 4-Fist JM &, 5...Winch, 6...
Bottom plate, 7... Crusher, 8... Vertical feed screw, 9...
Casing, 10... Vertical conveyor, 11... Mole body, 12... Floor, 13... Side, 14... Tara, 1
5. Supply port, 16. Ice maker, 17. Leveling conveyor, 18. Sprocket wheel, 19. Chain,
20... Reiki i, 21... Screw conveyor, 22
・・Drop port, 23・・Discharge port, 24・・Partition plate, 25・
- Drive means, 26... Frame box, 27... Fin, 28... Bearing, 29... Sprocket wheel, 3
0・ψ chain, 31-・Gear motor, 32◆・Reiki cover, 33@・Crusher pin, 34・・Traction piece, 35・・Pit groove, 36・・Power line, 37・・Power supply drum, 38・・Sprocket wheel, 39... Chain, 40... Gear motor, 41... Vertical frame, 42... Crusher, 43... Traction chain, 44...
・Chain wheel, 45... Reversing motor, Applicant Takeshi Hayashi Patent attorney Yasuhiro Toyosu C24) No. 2 M Fig. 9 Fig. 11

Claims (8)

[Claims] (1) A storage facility for powder and granular material having the following configuration (→ to (e)). The casing includes a mole body that sends powder and granules to a conveyor, and a moving means that moves the mole body. (b) The casing has a horizontal or almost horizontal floor surface, and the floor surface has an unequal aspect ratio and is elongated. The two opposing sides extending in the vertical direction of the floor are parallel to each other and spaced at the same distance, and the upper part has a powder supply port. (e) Vertical The feeding conveyor is below the floor surface of the casing and has an odd length in the vertical direction, and is communicated with the inside of the casing through the drop opening at the top so that the powder and granules inside the casing can be fed into the casing. 4. The mole body is arranged on the floor so as to be able to reciprocate along a vertical conveyor, and includes a frame box, a screw conveyor located on both sides of the frame box, and a drive that rotates the shaft of the screw conveyor. The screw conveyor has a shaft extending in the width direction of the floor surface with the axis facing the vertical conveyor, and a screw conveyor having a spiral shaft for transporting the powder and granular material in the casing toward the drop opening of the vertical conveyor. A shaped fin is fixed to the exposed part of the shaft, and a drive means for rotationally driving the shaft of the screw conveyor is built into the frame box disposed between both screw conveyors. (e) Mole body The moving means moves the mole body on the floor along a vertical conveyor, whereby the screw conveyor of the mole body sends the powder and granules on the floor to the vertical conveyor, and the vertical conveyor transports the powder and granules to the vertical conveyor. is configured to send out from within the casing. (2) The means for moving the mole body includes a flexible wire, a wheel that drives the flexible wire, and a rotating member that rotates the wheel, and the flexible wire is connected to the mole body, and the flexible wire is connected to the mole body. A storage for powder and granular material according to claim 1, wherein the mole body is configured to move on the floor by being towed. (3) A vertical conveyor is placed in the center of the floor.
The screw conveyor of the mole body has fins with opposite pitches on both sides of the center so as to transport the powder and granules toward the center. . (4) The storage for powder and granular material according to claim (1), wherein the vertical conveyor is a screw conveyor. (5) The storage for powder and granular material according to claim (1), wherein the powder and granular material transfer capacity of the vertical conveyor is greater than the powder and granule transfer capacity of the screw conveyor of the mole body. (6) The transfer speed of the mole body is such that the amount of powder and granules sent into the mole body per unit time is smaller than the amount of powder and granules transferred per unit time by the screw conveyor of the mole body. A storage for powder and granular material according to claim 1, which is adjusted so as to be. (7) A storage for powder and granular material according to claim (1), wherein a crusher is mounted vertically in the center of the mole body, and the crusher is driven by a motor. (8) The mole main body has a vertical frame fixed on a frame box, and crusher shafts are vertically disposed in front and behind the vertical frame.
1) Storage of powder and granular material mentioned in @.