JPH0712341U - Sediment continuous discharge device - Google Patents

Abstract

(57) [Summary] [Purpose] Even if the soil put into the hopper from above is viscous soil, it can be forcibly and efficiently laterally conveyed and discharged using a screw conveyor. [Structure] A plurality of first rotating members are provided, one end of which is seen in the discharge port portion 4 of the casing 1 and which are arranged in parallel at the bottom portion of the casing 1 so that at least a part of them can be rotated in the other direction. One screw conveyor 5 and a plurality of second screw conveyors 6 whose one end is seen in the discharge port portion 4 and which are arranged side by side in the casing 1 and rotate in one direction and / or the other direction. , A plurality of third screw conveyors 7 having one end undesired in the discharge port portion 4 and arranged in parallel in the vicinity of the discharge outlet top portion 4 in the housing 1 and rotating in the one direction or the other direction. To do.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a quantitative and continuous discharging device for quantitatively and continuously carrying out sediment by mixing cement, short fibers, foam beads, and the like with sediment and filling voids, backfilling the ground, and embankment.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, there has been widely provided a continuous quantitative sediment discharging device that continuously discharges and conveys the earth and sand put into a hopper by using a screw conveyor, a belt conveyor, or a vibrating plate. Further, although the above continuous discharge is not performed, a rotor-type weighing device that intermittently discharges a fixed amount according to the principle of the scale has been proposed.

[0003]

[Problems to be solved by the device]

 However, in such a conventional continuous sand discharge device and measuring device that uses the screw conveyor as described above, if a foreign substance enters the cylinder enclosing the screw body and is bitten, the screw will be abnormal. There were problems such as friction and the screw itself becoming inoperable.

Further, in the above-described conventional belt conveyor, a gate is provided on the upper portion of the belt main body, and the amount of earth and sand corresponding to the opening amount of the gate is carried out to remove the earth and sand. Since the soil is overloaded on the belt, it stops at the gate, and when the soil viscosity is high, the friction is large and the gate is blocked, making it impossible to carry out. There was a point.

Further, although the above-mentioned method of unloading soil with a diaphragm is effective for unloading sand, etc., soil with a high viscosity may not be carried out due to adhesion to the diaphragm. According to this, there was a problem that it became impossible to measure and carry out the soil due to the adhesion of soil with high viscosity.

The invention of claim 1 has been made by paying attention to the above-mentioned problems, and even if the earth and sand put into the hopper from above is viscous earth, it is forced by using a screw conveyor. The objective is to obtain a quantitative continuous discharge device for soil that can be transported and discharged horizontally, efficiently and efficiently.

According to the second aspect of the present invention, even if the soil put into the hopper from above is viscous soil, the soil can be quantitatively discharged from the lower end efficiently while being continuously conveyed downward by the screw conveyor. The purpose is to obtain an ejector.

According to the third aspect of the present invention, even if the sand and sand have a high viscosity, the sand can be carried into the hopper portion, drawn into the housing, and discharged from the housing efficiently, continuously, and rapidly, and the quantitative continuous discharge of the sand is performed. The purpose is to obtain the device.

[0009]

[Means for Solving the Problems]

 According to another aspect of the present invention, there is provided a device for continuously discharging a fixed amount of earth and sand, wherein one end of the device is located at a discharge port of a casing, and at least a part thereof is arranged in another direction and / or one direction. A plurality of rotating first screw conveyors, and a plurality of second screw conveyors, one end of which is seen in the discharge port, and which are arranged side by side in the housing and rotate in one direction and / or the other direction. And a plurality of third screw conveyors, one end of which faces the discharge port, and which are arranged in parallel in the housing near the top of the discharge port and rotate in the one direction or the other direction. Is.

According to a second aspect of the present invention, there is provided an apparatus for continuously discharging a fixed amount of earth and sand, comprising a hopper body provided with a discharge port portion for discharging the earth and sand from a top portion and discharging the earth and sand from a lower end, and an inclined surface in the hopper body. In addition, the direction and speed of rotation of multiple screw conveyors arranged in parallel along the vertical plane can be controlled arbitrarily.

According to the third aspect of the present invention, the constant amount of soil and sand discharging device is arranged in parallel with the hopper portion into which the sand and sand is charged from the top and the side portion inside the hopper portion, and the rotation direction and the number of rotations are arbitrarily controlled. A plurality of fourth screw conveyors, and a casing connected to a lower part of the fourth screw conveyor and provided with a discharge port portion for discharging the earth and sand on a side portion thereof, and the discharge port portion has a discharge port portion. A plurality of first screw conveyors that rotate in one direction, at least a part of which can be rotated in the other direction, are provided at the bottom of the housing so that one end can be seen, and one end can be seen in the discharge port. Is provided with a plurality of second screw conveyors that rotate in one direction and / or the other direction on the side portion inside the casing, and further, the discharge inside the casing is arranged so that one end can be seen in the discharge port portion. Above the top of the exit A plurality of third screw conveyors that rotate in one direction or the other direction are arranged side by side.

[0012]

[Action]

 In the device for continuous quantitative discharge of earth and sand according to the first aspect of the invention, the earth and sand put into the hopper is scraped downward by the second screw conveyor so as not to adhere to the side portion in the housing, and the third screw conveyor is used. Sediment reaching the bottom under gravity is discharged to the outside through the discharge port, and the above discharge port is used as a gate by the third screw to draw in the excess sand that is partitioned here into the housing, and then again It is carried out to the above-mentioned discharge part by a 2 screw conveyor and a 3rd screw conveyor.

In the device for continuously discharging a fixed amount of earth and sand according to the second aspect of the present invention, a plurality of screw conveyors provided along an inclined surface or a vertical surface in the hopper body are arbitrarily selected in terms of rotation direction, rotation speed, etc. By rotating it by rotating it, the sediment is carried out quantitatively continuously from the lower end while suppressing the sediment from adhering to the inner surface of the hopper.

In the device for continuously discharging a fixed amount of earth and sand according to the third aspect of the invention, the rotation direction, the rotation speed, etc. of each of a plurality of screw conveyors provided along, for example, an inclined surface or a vertical surface in the hopper body are arbitrarily selected. By rotating it, the soil and sand with high viscosity can be quickly and quantitatively continuously transported from the lower end to the lower housing while suppressing the adhesion to the inner surface of the hopper. In this case, the first, second, and third screw conveyors in the housing can effectively pull in and carry out the sediment.

[0015]

【Example】

 Example 1. An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 are a front sectional view and a side sectional view, respectively, showing an outline of a continuous quantitative discharging device for soil and sand according to the present invention. In FIG. 1, reference numeral 1 is a rectangular container-shaped casing which is the main body of the continuous discharging device. There is a hopper portion 3 into which the sediment 2 is introduced from above, and a discharge port portion 4 for discharging the sediment is provided on the lower side portion. The discharge port 4 constitutes a gate for controlling the discharge amount of earth and sand.

Further, 5 is a plurality of pieces arranged in a substantially horizontal manner at the bottom of the casing 1, here 5 pieces (a₁~ A_Five) Of the first screw conveyor, one end of which faces the discharge port 4. Each of these first screw conveyors 5 is rotatable in one direction (the direction in which the sediment is carried out), and performs the sediment discharging operation. This 1st screw conveyor has the possibility that the earth and sand may shift to one direction side. ₁ And a_FiveIt is also possible to prevent the deviation by making it rotatable in the other direction.

Further, 6 is a plurality of second screw conveyors (b _{1 to} b ₄ ) arranged side by side on the side surface of the housing 1, here, two screw conveyors are arranged horizontally (b _{1 to} b ₄ ). And, one end of these is looking into the discharge port 4. The second screw conveyors 6 can be selectively biased in one direction and / or the other direction.

Reference numeral 7 denotes a third screw conveyor (c _{1 to} c ₃ ) provided in parallel in the vicinity of the discharge port top portion 4 in the housing 1 and having one end looking into the discharge port portion 4. Each of these other ends does not reach deep inside the housing 1 and has a short dimension as shown in FIG. The third screw conveyor 7 is rotatable in the one direction or the other direction (the direction of pulling in the sand). The layout of the first, second and third screw conveyors 5, 6, 7 is as shown in FIG. Further, the screw conveyors 5, 6 and 7 are mounted in the housing 1 by a known method.

Next, the operation will be described. First, the rotation of the first, second and third screw conveyors 5, 6 and 7 is started. At this time, the third screw conveyor 7 is rotated in the reverse direction with respect to the rotation direction of the first screw conveyor 5, and the second screw conveyor 6 is rotated in the normal direction (one side) or the reverse direction (the other side).

Next, earth and sand are charged from the top of the hopper portion 3 of the housing 1. Since the third screw conveyor 7 is a short one in the vicinity of the discharge port portion 4 of the earth and sand 2 thus charged, almost all of it is on the first screw conveyor 5 and the second screw conveyor 6. It drops and gradually accumulates in the housing 1, and reaches a position higher than the level of the second screw conveyor 6 and the third screw conveyor 7.

Then, the first screw conveyor 5 guides the earth and sand 2 around the first screw conveyor 5 to the discharge port portion 4 and further discharges it out of the housing 1. Actually, depending on the rotation directions of the second screw conveyor 6 and the third screw conveyor 7, the earth and sand 2 are discharged from the discharge port 4 in the area surrounded by the screw conveyors 5, 6 and 7. A fixed amount is discharged from the end.

Further, depending on the selection of the rotation direction of the second screw conveyor 6, it is natural that the gate action of the discharge port 4 causes the earth and sand 2 discharged by the first screw conveyor 5. The emission amount of is determined to some extent. At this time, since the first screw conveyor 5 and the second screw conveyor 6 are provided close to the bottom and the side, respectively, even soil having high viscosity is attached to the bottom and the side. It is scratched out without doing.

On the other hand, when the soil 2 is soil with high viscosity, the soil adheres to the inside of the discharge port portion 4 serving as a gate and does not move in the discharge direction, but the third screw conveyor 7 Is rotating so as to shear the soil to be attached and to draw it into the housing 1, so that the soil at the top of the housing is not stored in the discharge port 4 but is forcibly sheared. Then, it can be discharged as described above.

By this drawing-in operation, the soil on the top has a raised shape in the vicinity of the discharge port 4, as shown in FIG. Further, the soil thus raised is sequentially fed from the rear end of the third screw conveyor 7 to the vicinity of the first screw conveyor 5 and the second screw conveyor 6, and again from the discharge port 4 to the above-mentioned. It will be discharged in a fixed amount.

FIG. 4 is a front cross-sectional view showing a vertical type continuous sediment discharging device according to the invention of claim 2, 11 is a hopper body into which the sand is thrown from the top, Is provided with a discharge port 12 for discharging earth and sand.

The hopper body 11 has a vertical surface 11a and an inclined surface 11b in the side wall, and a plurality of vertical screw conveyors 13 and an inclined screw conveyor 14 are provided along each of these surfaces, and one end of these is provided. Extends near the outlet 12 as a gate.

The screw conveyors 13 and 14 can be rotated independently or in conjunction with each other, and in order to carry out quantitative discharge, their rotation direction, rotation speed, and rotation position can be changed according to the viscosity of earth and sand. It is selectively controllable.

In such a continuous soil discharging device, the soil charged from the top into the hopper body 11 is moved by the screw conveyors 13 and 14 which rotate at a rotating direction, a rotating speed and a rotating position according to the viscosity of the soil. A part of the earth and sand is sent down, and the earth and sand of other parts are moved upwards, and is discharged from the discharge port 12 in a fixed amount.

In this embodiment, for example, the vertical screw conveyor 13 is rotated in one direction at a predetermined rotation speed to carry out the earth and sand toward the discharge port portion 12, while the inclined screw conveyor 14 is rotated in the opposite direction. It is possible to quantify the amount of earth and sand carried out from the discharge port by rotating it at a predetermined rotation speed so that the earth and sand in the lower part is conveyed upward, and this carrying out operation can be performed continuously. be able to.

FIG. 5 is a front view showing a device for continuously discharging a fixed amount of earth and sand according to a third aspect of the present invention, which has a structure in which the housing 1 shown in FIG. 2 and the hopper body shown in FIG. 4 are connected. The same reference numerals are given to the same parts as these.

That is, in this embodiment, the hopper portion 11A into which the earth and sand are poured from the top has the vertical surface 11a and the inclined surface 11b in the side wall, along which the rotation speed and the rotation direction are arbitrarily controlled. The vertical screw conveyor 13A and the inclined screw conveyor 14A as a plurality of fourth screw conveyors are provided, and the hopper portion 11A is connected to the housing 1 instead of the hopper portion 3 as shown in FIG. There is.

As a result, even the viscous earth and sand thrown in from the top of the hopper 11A can be efficiently sent into the housing 1 without adhering to the inner wall surface thereof, and thus the housing 1 It is possible to further smooth and speed up the intake of sand and the discharge from the discharge port.

FIG. 6 shows a taper screw conveyor 21 used for quantitative discharge. According to this, since the soil discharge pressure changes axially, the soil can be effectively drawn in and discharged by utilizing this change.

[0034]

[Effect of device]

 As described above, according to the first aspect of the present invention, one end of the housing is seen in the outlet portion of the housing, and at least a part thereof is rotated in the other direction and / or one direction by being juxtaposed at the bottom portion of the housing. A plurality of first screw conveyors, a plurality of second screw conveyors, one end of which is seen in the discharge port portion, and a plurality of second screw conveyors which are arranged side by side in the housing and rotate in one direction and / or the other direction; Since one end of the third screw conveyor is provided at the end of the discharge port and is arranged in parallel in the housing near the top of the discharge port and rotates in the one direction or the other direction, the third screw Rotate the conveyor in the pull-in direction to pull the soil in the direction opposite to the unloading direction to shear it, and rotate the second screw conveyor in the pull-in direction and / or the unloading direction to load and unload the soil. While adjusting, the first screw conveyor smoothly carries out soil and sand of various properties such as highly viscous soil from the discharge port while continuously and quantitatively, or in some cases, mixing it in one direction and the other direction. it can. That is, in the present invention, since the screw conveyors are arranged in parallel along the wall surface of the hopper, various earth and sand can be quickly transported by the action of cutting off the friction and adhesion between the earth and sand and the wall surface of the hopper. Be shipped. In addition, a parallel screw conveyor is installed along the wall surface of the hopper, and due to the structure that there is no obstacle in the center, foreign matter in the earth and sand, such as stones, wood chips, and roots, can be swiftly stopped without stopping in the hopper. Be shipped.

According to the second aspect of the present invention, there is provided a hopper body provided with a discharge port portion for discharging earth and sand from the lower end, and the inclined surface and the vertical surface in the hopper body. Since the multiple screw conveyors arranged along the road are configured to arbitrarily control the rotation direction and number of rotations, the rotation direction, rotation speed, and rotation of the vertical screw conveyor and the inclined screw conveyor according to soil viscosity can be controlled. The soil can be discharged quantitatively easily and continuously by controlling the position. This is because the rotation of the screw conveyor and the rotation direction of the parallel screw conveyor are controlled during the process of conveying the earth and sand by making the screw conveyor relatively long along the wall surface of the hopper, so that the earth and sand are rotated and agitated. The effect will occur. Furthermore, if a solidifying material is added during the transportation of earth and sand, it will have a great effect as a mixing and unloading device for soil improvement, and an economically compact device can be realized.

Further, according to the invention of claim 3, a hopper portion into which earth and sand are charged from the top portion and a plurality of fourth hopper portions which are arranged in parallel in the side portion of the hopper portion and whose rotation direction and rotation number are arbitrarily controlled. A screw conveyor and a casing connected to the lower part of the fourth screw conveyor and provided with a discharge port for discharging the soil on the side of the screw conveyor so that one end of the discharge port can be seen. Is provided with a plurality of first screw conveyors that rotate in one direction, at least a part of which can also rotate in the ground direction, in the bottom of the casing, and one end of the casing can be seen in the discharge outlet. A plurality of second screw conveyors that rotate in one direction and / or the other direction are provided on the side of the body, and further, in the vicinity of the top of the discharge port in the housing so that one end can be seen in the discharge port, One direction or the other direction Since multiple third screw conveyors that rotate in parallel are arranged side by side, even with highly viscous earth and sand, it is efficient to carry this earth and sand into the hopper, draw it into the housing, and discharge it from the housing. There is an effect that something that can be done rapidly, continuously, and quickly can be obtained.

Note that, conventionally, the constant-quantity transport and the mixing device had separate functions, but in the present invention, the effect that they can be integrated can be obtained.

Therefore, according to the present invention, there is no trouble caused by the mixture of foreign matters, and the cement, the short fibers, and the foam beads are added to the soil at a constant ratio by using the forced quantitative discharge technology of such sediment. It is possible to produce mixed soil continuously.

[Brief description of drawings]

FIG. 1 is a front cross-sectional view showing an apparatus for quantitatively discharging earth and sand according to an embodiment of the present invention.

FIG. 2 is a front cross-sectional view showing the quantitative continuous discharge device for earth and sand in FIG.

3 is a layout view of the screw conveyor in FIG. 1. FIG.

FIG. 4 is a front cross-sectional view showing an apparatus for quantitatively discharging soil and sand according to an embodiment of the present invention.

FIG. 5 is a front cross-sectional view showing a fixed amount continuous discharging device for soil and sand according to an embodiment of the invention of claim 3;

FIG. 6 is a perspective view showing a taper screw conveyor usable in the present invention.

[Explanation of symbols]

 1 Case 2 Sediment 3,11A Hopper 4,12 Discharge Port 5 First Screw Conveyor 6 Second Screw Conveyor 7 Third Screw Conveyor 11 Hopper 13 Vertical Screw Conveyor 13A, 14A Fourth Screw Conveyor 14 Inclined screw conveyor

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hirofumi Inada Inventor Hirofumi Inada 47-3 Mita, Atsugi-shi, Kanagawa Sato Kogyo Co., Ltd. (72) Inventor Tsuneo Sato 2222 Shinmachi, Ome-shi, Tokyo (72) Inventor Takahashi Haruhito 8-14-14 Ginza, Chuo-ku, Tokyo Nitto Construction Co., Ltd. (72) Inventor Toshiaki Kato 2-5-8 Kita-Aoyama, Minato-ku, Tokyo Within the inter-company group

Claims (3)

[Scope of utility model registration request] 1. A housing provided with a hopper portion into which earth and sand are charged from the top and provided with a discharge port portion for discharging the sediment on a side portion, and one end of the discharge port portion can be seen, and the inside of the housing is provided. A plurality of first screw conveyors arranged side by side at the bottom of the housing and rotating at least a part thereof in the other direction and / or one direction, and one end of the screw conveyor is provided at the discharge port, and arranged side by side in the housing. A plurality of second screw conveyors that rotate in one direction and / or the other direction, and one end of the discharge port is desired, and the two screw conveyors are arranged side by side in the vicinity of the top of the discharge port in the housing, and the one direction or A fixed-quantity continuous discharging device for soil and sand, which comprises a plurality of third screw conveyors rotating in the other direction. 2. A hopper body provided with earth and sand from the top and a discharge port for discharging earth and sand from the lower end, and the hopper body and the hopper body, which are arranged side by side along a sloped surface and a vertical surface in a side wall, in a rotation direction. ， Quantitative continuous discharge device of earth and sand equipped with multiple screw conveyors whose rotation speed is controlled arbitrarily. 3. A hopper section into which earth and sand are charged from the top, and a plurality of fourth screw conveyors which are arranged in parallel at the side of the hopper section and whose rotation direction and rotation speed are arbitrarily controlled, Of the screw conveyor, which is connected to the lower part of the conveyor, and has a discharge port portion for discharging the earth and sand on the side, and one end of the discharge port portion is desired, and the discharge port portion is arranged side by side at the bottom of the casing. A plurality of first screw conveyors that rotate in one direction, at least a part of which is also rotatable in the other direction, and one end of which is seen in the discharge port portion, and which are arranged side by side in the housing in one direction. Or / and a plurality of second screw conveyors that rotate in the other direction, and one end of the second screw conveyor, which is located near the top of the discharge port in the housing, and rotates in the one direction or the other direction. Multiple third screwco Continuous discharge device for soil and sand, equipped with a conveyor.