JPH08295393A - Forcible discharge device in storage tank - Google Patents

Abstract

PURPOSE: To provide a forcible discharge device serving as a preventive means of sticking soil and a forcible discharge function for brocking soil or the like in common, in a simple device and means. CONSTITUTION: A storage tank provided with the side walls covering the periphery and a discharge outlet at the lower part is constituted of a slide plate 3 arranged so as to freely slide and a scraper plate 42 traversing on the slide plate 3, in the inside of the tank.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a forced earth-discharging device for releasing a blockage of a discharge gate due to earth-sand generated in a storage tank for temporarily storing earth-sand, powder and the like.

[0002]

2. Description of the Related Art A hopper is known as a storage tank for storing / temporarily storing earth / sand and the like generated at the site of construction / civil engineering work such as tunnel construction and loading it on a dump truck or the like. The hopper is composed of an input port, a storage unit, and a discharge gate from the top. Therefore, the earth and sand generated at the construction site are stored by being dropped into the storage unit from the input port of the hopper by a bucket, a conveyor, a pipeline or the like. The lower part of the storage part of the hopper is an inverted square pyramid.
The earth and sand slide on the slope and fall to the bottom of the storage unit by gravity. It is known that when the sediment accumulates in the hopper, the discharge gate at the bottom of the hopper is opened and the sediment is loaded into the dump truck. In addition, earth and sand stored in the hopper may be compacted due to its own weight and may be blocked when the discharge gate is opened and closed so that the earth cannot be discharged. Therefore, in order to prevent or cancel the blockage due to the sand and the like, the following methods are known. A worker uses a scoop or stick from the top of the hopper to break up the blocked soil. A vibrator is attached to the hopper storage unit to reduce the coefficient of friction between sediments and the like by vibrating energy and increase the fluidity of sediments. An air bag is attached to the inner peripheral surface of the hopper storage unit, and when the air bag is closed, the air bag is inflated, and the solidified sand is solidified and plastically deformed to increase the fluidity of the sand.

[0003]

Problems to be Solved by the Invention The above-mentioned hopper has the following problems. <a> Hopper Gravity is relied on for soil discharge,
It is necessary to give a steep slope to the side of the hopper, which reduces the volume of soil that can be stored. <B> In order to release the blockage of the discharge port due to the clogging of the earth and sand during storage in the hopper, workers push the clogged parts with scoops or sticks, etc. Work is dangerous and requires a great deal of labor by workers, resulting in poor work efficiency. <C> There is a method of providing vibration energy and plastic deformation to the closed portion by arranging a vibrator or an air bag in the hopper storage portion instead of the work of releasing the closed portion by the worker, but since a large base material is used. Not only does it take a lot of time and effort to arrange them, but also the construction cost increases. <D> In addition, the method of providing vibration energy and plastic deformation to the closed part by arranging a vibrator or an air bag is the method that excessive vibration and internal plastic deformation conversely compact the earth and sand of the discharge port, and the hopper discharge port. Sediment is not guided to the area, and the effect of releasing the blockage cannot be expected.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it is an object of the present invention to prevent the adhesion of earth and sand and the forced discharge function of closed earth and sand by a simple device and means. An object of the present invention is to provide a compulsory earth removal device for a storage tank.

[0005]

According to the present invention, a slide plate, which is slidably disposed in the storage tank, is provided in a storage tank having a side wall and a discharge port at a lower portion. Characterized by comprising a traversing scraper,
It is a forced ejection device in a storage tank. Further, the storage tank is configured by a slide plate slidably arranged in the storage tank, a discharge blade axially fixed to the lower end of the slide plate, and a scratch plate traversing the slide plate. It is a forced ejection device in. Further, it is characterized by comprising a slide plate slidably arranged in the storage tank, a protrusion formed so as to cross the upper surface of the slide plate, and a scratch plate crossing over the slide plate. , A forced discharge device in a storage tank. Further, a slide plate slidably arranged in the storage tank, a protrusion formed so as to be continuous in the transverse direction on the upper surface of the slide plate, and a scratch plate traversing the slide plate. The feature is the forced discharge device in the storage tank. In addition, a slide plate slidably arranged in the storage tank, a discharge blade axially fixed to the lower end of the slide plate, a protrusion formed so as to traverse the upper surface of the slide plate, and the slide plate It is a forced discharge device in a storage tank, characterized in that it comprises a traversing scraping plate. Further, a slide plate slidably arranged in the storage tank, and a discharge blade axially fixed to the lower end of the slide plate,
A forced discharge device in a storage tank, comprising: a protrusion formed so as to be continuous in the transverse direction on the upper surface of the slide plate, and a scratch plate that traverses the slide plate. Further, in the forced discharge device in the storage tank described above, the discharge blade that is axially fixed to the lower end of the slide plate is a plate body whose tip is inclined upward, and is allowed to rotate up to a right angle position of the slide plate to the lower end of the slide plate. It is a forced discharge device in a storage tank, which is characterized by being axially stopped. Further, in the forced ejection device in the storage tank described above, the protrusion formed so as to cross the upper surface of the slide plate is necessary for sliding the slide plate between the scratch plate and the scratch plate that crosses the slide plate. It is a forced ejection device in a storage tank, which is formed at a position where a sufficient stroke is taken.
Also, in the forced discharge device in the storage tank described above,
The protrusion formed so as to be continuous in the transverse direction on the upper surface of the slide plate is formed at a position where a sufficient stroke is required to slide the slide plate between the scratch plate that traverses the slide plate. The feature is the forced discharge device in the storage tank. Further, in the forced ejection device in the storage tank described above, the forced ejection device in the storage tank is characterized by having a plurality of scratch plates traversing over the slide plate. Further, the forced ejection device in the storage tank is characterized in that it has a plurality of protrusions formed so as to cross the upper surface of the slide plate. Furthermore, in the forced ejection device for a storage tank described above, the guide portion formed of a hollow frame is formed separately from the storage tank.

[0006]

Embodiment 1 An embodiment of the present invention will be described below with reference to the drawings. <A> Storage tank As shown in FIGS. 8 and 9, a hopper a, which is an example of a conventional storage tank, is an inverted quadrangular pyramid-shaped container surrounded by side walls, and has an earth and sand inlet b opened at the top. , And has a sediment discharge port c at the bottom. In the case of the hopper a shown in FIGS. 8 and 9,
Two earth and sand discharge ports c are provided, but this is only an example and there may be a plurality of hoppers and a single hopper. The sediment discharge port c has a discharge gate d, and the discharge gate cylinder e is driven to open and close the sediment discharge port c.
As shown in FIGS. 2 and 3, the forced discharge device 1 in the storage tank of the present invention is installed on the opposite side surfaces of the storage section of the conventional hopper a described above. 2 and 3, an example in which two facing forced ejection devices 1 are arranged in the hopper 2 is described, but the present invention is not limited to this, and the forced ejection device 1 is not limited thereto.
Can be appropriately arranged.

<B> Forced soil discharging device FIG. 1 shows an example of the entire hopper provided with the forced soil discharging device 1. The forced earth unloading device 1 (hereinafter referred to as the earth unloading device 1) is a device attached along the inner side surface 21a of the storage section 21 of the hopper 2. The earth removing device 1 includes a slide plate 3, a guide rail 4 that supports the slide plate 3, and a slide jack 5 that slides the slide plate 3.

<C> Slide Plate As shown in FIGS. 4 to 7, the slide plate 3 has an inner side surface 21a of the storage portion 21 of the hopper 2 by a driving means described later.
Is a member that slides vertically over a certain width. At the lower end of the upper surface of the slide plate 3, a plurality of earth-discharging blades 6 are fixed to the slide plate 3 by allowing rotation at a constant angle in the transverse direction of the slide plate 3. Also, on the upper surface of the slide plate 3,
Protrusions 7 are attached in the transverse direction of the slide plate 3 at regular intervals in the vertical direction. The tip of the slide plate 3 reaches near the earth and sand discharge port 22 of the hopper 2 due to the sliding.

<D> Earth Exhaust Blade As shown in FIGS.
It is a member for catching the earth and sand when it descends and giving a pushing force to forcibly discharge the earth. The earth-discharging blade 6 is prevented from rotating below the slide plate 3, and is allowed to rotate at a constant angle only above and is fixed to the shaft. The earth-discharging blade 6 has one end axially fixed to the slide plate 3 by pinning or the like, and the other end has a bent portion 61 formed obliquely upward.
As a result, when the slide plate 3 descends, the earth-discharging blade 6 catches on the earth and sand and rotates upward. In order to prevent the rotation of the earth-discharging blade 6 at a position orthogonal to the slide plate 3 when the earth-discharging blade 6 is rotated upward, a warp prevention plate 62 is attached to the rear of the earth-discharging blade 6.

<V> Projection Body As shown in FIGS. 3 to 6, the projection body 7 is the slide plate 3
This is a member for slicing the adhesion force of the earth and sand in the storage section 21 of the hopper 2 by the pushing force when descending. Protrusion 7
Is a continuous plate having a V-shaped cross section, and is continuously attached in the transverse direction at regular intervals on the upper surface of the slide plate 3 in the transverse direction.

<F> Guide Rail As shown in FIG. 1, the guide rail 4 is a guide member for slidably accommodating the slide plate 3 along the longitudinal direction of the inner side surface 21a of the hopper 2. The guide rail 4 is composed of a hollow frame body 41 formed by projecting from the inner side surface 21a of the storage section 21 of the hopper 2 by a size capable of accommodating the slide plate 3. In the hollow portion of the guide rail 4, scratch plates 42 are attached at regular intervals in the transverse direction of the guide rail 4. Further, the scraping plate 42 is mounted at a position where it does not interfere with the descending and ascending of the slide plate 3 to which the protrusion 7 is mounted. Scraping plate 42
Is the inner peripheral surface 21a (slide plate 3) of the hopper 2 such as earth and sand stored when the slide plate 3 descends and rises.
Edge the adhesive force to.

<G> Slide Jack As shown in FIGS. 4 to 7, the slide jack 5 is a power for driving the slide plate 3 housed in the slide guide 4. The slide jack 5 is attached to the outer peripheral surface 21b of the hopper 2, and the slide plate 3 installed on the inner peripheral surface 21a of the hopper 2 is slidably connected.

[0013]

The operation of the forced earth unloading device 1 will be described below with reference to FIGS. When the sediment discharge port 22 of the hopper 2 is clogged with sediment, the forced soil discharge device 1 of the present invention scrapes off the sediment in the vicinity of the sediment discharge port 22 to enhance the fluidity of the blocked sediment. The forced earth discharging device 1 releases the blockage of the earth and sand by sliding the slide plate 3 attached along the inner side surface 21a of the storage section 21 of the hopper 2 by driving the slide jack 5. When the earth and sand discharge port 22 is closed, the slide jack 5 slides the slide plate 3 downward. By the sliding of the slide plate 3, the open end portion of the earth-discharging blade 6 axially fixed to the lower end of the slide plate 3 is caught by the earth and sand, and the earth-discharging blade 6 rotates upward. The earth-discharging blade 6 rotates to a position near a right angle with the slide plate 3 that comes into contact with the warp prevention plate 62 attached to the rear side thereof. The slide plate 3 is continuously slid downward while the earth-discharging blade 6 is projected at the lower end. Hopper 2 storage 21
The earth and sand in the inside is crushed by the earth discharge blades 6 of the slide plate 3 to give a pushing force, so that the closed portion is crushed and forced out toward the earth and sand discharge port 22. The push-out force of the earth-discharging blade 6 releases the clogging of the earth and sand and allows the earth and sand to be discharged.

Simultaneously with the application of the pushing force to the earth and sand by the earth-discharging blades 6, the protrusions 7 mounted on the upper surface of the slide plate 3 at regular intervals and the scratches attached at regular intervals in the transverse direction of the guide rails 4. The inner peripheral surface 21 of the hopper 2 by the plate 42
Cut off the earth and sand attached to a. That is, as the slide plate 3 slides, the sticking force of the earth and sand is removed by peeling it from the slide plate 3 by the scratch plate 42 of the guide rail 4 while pressing the earth and sand attached to the surface of the slide plate 3 with the protrusions 7. Due to this, it is possible to impart fluidity to the earth and sand attached to the peripheral surface of the hopper 2,
Make it easy to discharge.

[0015]

[Embodiment 2] In the above-described Embodiment 1, the earth unloading blade attached to the lower end of the slide plate and the protrusion formed on the upper surface of the slide plate are used to extrude the earth and sand and cut the edge of the adhesive force of the earth and sand. explained. On the other hand, it may be considered that the sediment blockage is released and the soil is forcibly discharged only by the sand pushing force of the slide blades.

[0016]

[Embodiment 3] Further, in contrast to the above-mentioned respective embodiments, the adhesion force of the earth and sand adhered to the inner surface of the hopper only by the protrusion formed on the upper surface of the slide plate and the scraping plate formed in the horizontal transverse direction of the guide rail. It is conceivable to release the plug and release the blockage of the discharge port.

[0017]

[Fourth Embodiment] In addition to the guide rails formed on the inner surface of the hopper in the above-described respective embodiments, the guide rail is formed separately from the hopper, and a slide plate or the like is arranged to forcibly discharge the device. It may be possible to apply the method to various storage tanks.

[0018]

[Embodiment 5] In each of the above-described embodiments, sliding of the slide plate employs various known driving means such as jacks using hydraulic pressure, traction machines using ropes, gears, etc. It is possible.

[0019]

Since the present invention is as described above, the following effects can be obtained. <a> Since the sediment can be discharged without relying on the gravity of the hopper, it is not necessary to provide a large gradient such as an inverted quadrangular pyramid shape to the storage part of the hopper, and the storage capacity of the storage part for the sediment, etc. Can be increased. <B> The unstable scaffolding on the top of the hopper eliminates the need for a worker to push the clogged part with a scoop or a stick to perform work.
The work efficiency is improved because the great labor and danger of the worker are reduced. <C> Since it is not necessary to arrange a large-sized base material such as a vibrator or an air bag in the hopper storage section, a large amount of time and labor can be saved, and thus the construction cost can be reduced. <D> Since a method of giving vibration energy and plastic deformation to the closed part by arranging a vibrator or an air bag is not adopted, too much vibration and internal plastic deformation will conversely compact the soil at the outlet. The effect of guiding the sediment to the hopper discharge port is large.

[Brief description of drawings]

FIG. 1 is an explanatory view of a forced ejection device in a storage tank according to the present invention.

FIG. 2 is a front view of a hopper provided with a forced ejection device according to the first embodiment.

FIG. 3 is a side view of the hopper provided with the forced ejection device according to the first embodiment.

FIG. 4 is a vertical sectional view of a hopper provided with a forced discharging device in a storage tank.

FIG. 5 is an explanatory diagram when the forced ejection device in the storage tank is driven.

FIG. 6 is an explanatory diagram when the stored material is forcibly discharged.

FIG. 7 is an explanatory diagram of a discharge blade

FIG. 8 is a front view of a conventional hopper.

FIG. 9 is a side view of a conventional hopper.

Claims (12)

[Claims] 1. A storage tank having a side wall and a discharge port at the bottom, and a slide plate slidably arranged in the storage tank, and a scratch plate traversing the slide plate. A forced discharge device in a storage tank. 2. A slide plate, which is slidably disposed in the storage tank in a storage tank having a side wall and a discharge port at a lower portion, and a discharge blade axially fixed to a lower end of the slide plate, A forced discharge device in a storage tank, characterized by comprising a scratch plate traversing over a slide plate. 3. A slide plate which is slidably arranged in the storage tank in a storage tank having a side wall and a discharge port at the bottom, and a protrusion formed so as to cross the upper surface of the slide plate. And a scraping plate that traverses the slide plate, The forced discharging device in a storage tank. 4. A slide plate, which is slidably arranged in the storage tank in a storage tank having a side wall and a discharge port at the bottom, and a top surface of the slide plate which is continuous in the transverse direction. A forced discharge device in a storage tank, comprising: the protruding portion and a scratch plate that traverses the slide plate. 5. A slide plate, which is slidably arranged in the storage tank in a storage tank having a side wall and a discharge port at a lower portion, and a discharge blade axially fixed to a lower end of the slide plate, A forced discharge device in a storage tank, comprising: a protrusion formed to cross the upper surface of the slide plate; and a scratch plate crossing the slide plate. 6. A slide plate, which is slidably arranged in the storage tank in a storage tank having a side wall and a discharge port at the bottom, and a discharge blade axially fixed to the lower end of the slide plate, A forced discharge device in a storage tank, comprising: a protrusion formed so as to be continuous in the transverse direction on the upper surface of the slide plate; and a scratch plate that traverses the slide plate. 7. The forced discharge device for a storage tank according to claim 2, 5, or 6, wherein the discharge blade axially fixed to the lower end of the slide plate is a plate body having a tip inclined upward. A forced ejection device in a storage tank, characterized in that the slide plate is allowed to rotate to a right angle position and is axially fixed to the lower end of the slide plate. 8. The forced ejection device for a storage tank according to claim 3 or 5, wherein the protrusion formed so as to traverse the upper surface of the slide plate slides between the protrusion and the scratch plate traversing the slide plate. A forced ejection device in a storage tank, characterized in that it is formed at a position where a sufficient stroke is required to slide the plate. 9. The forced ejection device for a storage tank according to claim 4 or 6, wherein the protrusion formed so as to be continuous in the transverse direction on the upper surface of the slide plate is between the scratch plate traversing the slide plate. A forced discharge device in a storage tank, characterized in that the slide plate is formed at a position where a sufficient stroke is required to slide the slide plate. 10. The forced ejection device for a storage tank according to claim 1, wherein the forced ejection device for a storage tank includes a plurality of scratch plates that traverse over a slide plate. 11. The forced ejection device for a storage tank according to any one of claims 3 to 10, wherein the storage tank has a plurality of protrusions formed so as to cross the upper surface of the slide plate. Forced ejection device. 12. The forced ejection device for a storage tank according to any one of claims 1 to 11, wherein the guide portion formed of a hollow frame is formed separately from the storage tank. Forced ejection device.