JPS59183812A - Remover of coarse particle in mud water - Google Patents

Abstract

PURPOSE:To obtain a most compact economical remover by making up the remover of a filter chamber, a precipitating chamber, a sedimenting chamber, a soil and sand compression tube, a compressive dewatering chamber, a discharge gate, and three geared motors. CONSTITUTION:When a geared motor A is driven, a filter cylinder 1, a rotary brush 3, a sedimenting shaft 26, a scraper 4, and a sedimenting screw 5 are turned together. The inside diameter of the casing of the sedimenting screw 5 nearly equals to the diameter of the screw, and a soil and sand compression tube 19 is provided skew-inclinationally to the sedimenting shaft 4 from the discharger port. A soil and sand compressive screw 20 is driven in the tube 19 by a geared B separately set. A compressive dewatering chamber 21 is provided at the end of the screw 20, and a discharge gate 22 which is opened or closed in the axi-vertical direction and driven by a geared motor C separately set is also provided on the end of the screw 20. The current value of the geared motor B is detected and the discharge gate 22 is opened or closed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention takes muddy water discharged in the muddy shield method, filters it, reuses the slurry liquid containing fine sand,
This relates to a device that discharges only coarse-grained sand. Conventional methods for treating muddy water using the muddy water method include O.
) A method in which muddy water is stored in a sedimentation tank and allowed to settle for a long time, and then only the supernatant muddy water is reused. ■ A method in which vacuum dehydration is performed. ■ A method in which all muddy water is discharged to the outside of the yarn without being sorted using a vacuum truck. etc. were being carried out. (1) requires a vast area, ■ requires a large vacuum container, and ■ has problems such as pollution at the dumping site, and the cost of excavation work is also high. There were also difficulties in reusing usable fine-grained sand and slurry.Proposals to solve these problems had been proposed, but all of them were complicated and required a large space. There were still many disadvantages in practical use.

The present invention realizes the most compact and economical device that thoroughly utilizes the sedimentation theory and separation action in order to make it a reasonable size for use in generally confined construction sites. As shown in FIG. 1, the present invention includes (1) a 7/i overchamber,
(Sedimentation chamber, Sedimentation chamber, 09) This device consists of a sediment compression pipe, c eaves F dewatering chamber, and (a) discharge gate. Driven by low speed geared motor A.

The extension shaft of the geared motor A passes through the (c) filter tube cover, and a 00 gear is keyed inside the blind filter chamber, and the (1) 77j gear ( stomach)
An ink-null gear is rotatably fixed. on the other hand(
]:1 A hole close to the inner diameter of the filter cylinder is opened at the end face of the bottom of the filter cylinder of the case sink, so that the end face receives the thrust of 1J-i, (1) the outer surface of the filter cylinder and (14
The bottom of the casing is separated by (c) the bottom of the over-chamber, and the Cl gear at the tip of the extension shaft is keyed to the shaft of the (3) rotating brush, see Figure 2.0'7) The brush gear (3) The rotating direction of the rotating brush is (1)'/F5
It is placed inscribed so that it rotates in the opposite direction to the oversimplification. Furthermore, in the middle of the '9TL long axis of geared motor A, (6) the driving tin rocket wheel passes through the ■Fi over-tube force cylinder cover core (2) the 9-sinking shaft has (7) the passive sprocket topoil. In order to drive the sinking shaft, which is locked with a key and linked with (8) a chain, there is also a method of interlocking with gears in addition to the sprocket, sotopoile, and chain. The +d(5) settling screw is keyed in the (g) settling chamber at the bottom ψQ of the o(9 settling shaft, and the Cl(4) scraper is locked in accordance with the rule of A. Therefore, the geared motor A When driven, (1) filter cylinder, (3) rotating brush (low sedimentation tube), (4) scraper, and (5) sedimentation screw rotate together.Furthermore, the inner diameter of the casing of (5) sedimentation screw is approximately the same as that of the screw. (7) A sedimentation chamber is formed, and an o1 sediment compression pipe is installed obliquely to the sedimentation axis from the sedimentation chamber (7). ) The earth and sand compression screw is driven by a separately installed geared motor B. (1) A chamber without a screw is provided at the end of the earth and sand compression screw, and (2) a compression and dehydration chamber is provided at the end of the screw at right angles to the axis. (c) A discharge gate that can be opened and closed in the direction is provided.The discharge gate is configured to be operated by a separate cart motor C.(b) A 02 gear motor is installed at each opening/closing point of the discharge gate. −
A limit switch is provided to stop the motor C. The excavated sand and sand are pumped together with a large amount of water from a pump (not shown) to (9) the muddy water population valve, and from the bottom of the soil introduction pipe upwards (1) into the center of the filter cylinder, where it breaks off. Exercise vigorously (
1) Only water that can pass through the (2) wire mesh placed on the inner surface of the filter tube, fine-grained sand within the permissible particle size, and clay that is soluble in water are allowed to pass through, and coarse-grained sand that cannot pass through has a specific gravity difference. 0 by
υIt settles and falls toward the settling chamber. (1) The lower part of the filter cylinder is free to pass through and becomes a 00 sedimentation chamber, which passes through the center (6) is keyed to the sedimentation shaft (θ4) and is crushed and stirred by a scraper. (14) The action of the scraper is that some of the sedimented mud is still mixed with clay soil and fine-grained sand, forming clumps, so if this is thoroughly stirred and broken down, it will float and submerge in the water. This is because fine grained sand is also generated which accumulates and then (1) exits from the iFi tube exit section. (1) Since the filter cylinder normally rotates at a very low speed of several rotations per minute, the influence of centrifugal force is small, and most of the coarse sand (1) does not pass through the filter cylinder and reliably falls into the α■ sedimentation sediment; Only fine sand and clay slurry pass through the wire mesh. However, the lumpy mud was washed away by the turbulent water (
2) It may also stick to the wire mesh and tie the mesh together. In order to eliminate this problem, (1) the rotating brush on the inner surface of the filter cylinder (2) rotates in the opposite direction when it comes into contact with the wire mesh (3) rotates and attaches to the rotating center of the filter cylinder. It is equipped with a device that constantly scrapes and cleans mud. Coarse sand that has not yet settled in turbulent water flows is accumulated in muddy water.
Rapid settling is heavy because it obstructs the passage of fine-grained sand, etc.

For this purpose, (4) a settling chamber is provided at the edge of the scraper (7) to promote settling;
In order to forcibly strengthen the sedimentation of the coarse-grained sand that has not been deposited, a downward flow is created to speed up the sedimentation of the coarse-grained sand. Water containing only coarse-grained sand is forced to flow from the sedimentation chamber outlet 1 into the sediment compression pipe. (4) The sediment compression screw rotates, pushing the incoming coarse sand in the opposite direction from the inlet and twisting it. (7) The sediment compression screw and The larger the proportion, the more water is pushed back q′! Backflow through the outlet of A settling chamber 1) Fi passing tube qO sura') tJ
:'+ When the proportion of coarse sand in the earth and sand compression pipe increases, the shaft power increases by 9 due to the frictional force of the earth and sand compression screw shaft, and the geared motor B
The current value increases. - Coarse-grained sand is accumulated in the screwless chamber υ compression dewatering chamber of the 0 [phase] sediment compression pipe.

Coarse-grained sand fills the compression dewatering chamber (21). (4) The current value of the geared motor B that drives the 1-liter soil compression screw reaches the specified value, and the current value of the geared motor B
111 Exit gate gear motor C starts.

The e21) ejection gate is installed at the end of the compression dehydration chamber, and the e21) ejection gate is rotated in the +1ηII right angle direction using the ■ pin provided on the lower side as a fulcrum. In Fig. 3, there is an opening 10 (circular) at the maximum rotation position, and only coarse sand can be discharged from the gate. It is engraved and keyed to the cart motor C axis. Engineering (c)
It is designed to work in conjunction with the opening/closing gear.

A t31) BJ limit switch is provided at the open and closed positions to ensure that the geared motor C is stopped. When the coarse sand is discharged, the current value of the compression 14'l gear motor B decreases, so that the discharge cage (c) is closed again. At this time, some water is discharged together with the coarse sand, but it is minimal because it has been sufficiently dehydrated and compressed.

Although the 00 compression dehydration pipe is shown as having an inclined structure, it may be vertical if space permits. However, the height of the device increases. In addition, (1)/F) The sliding surface between the first end of the overtube and the end face of the casing, the outer surface of the overtube and the K/Noda, or the gap between the screw and the cylinder is sealed with water, and the water becomes lubricating water to reduce friction. .

Furthermore, in the case of a sudden overload, the gear motor seal or the gear motor J3 detects an overcurrent and reverses the respective cart motor. When the screw is reversed, the rotation of the screw acts in a direction to relieve the compression of the coarse sand, so the current value returns to the normal IF value again and the screw is arranged so as to continue normal rotation.

Since the shield method uses a large amount of soil and water, its disposal must be done urgently, and the muddy water containing fine sand and clay of acceptable particle size must be washed into a slurry form. ]r can be used. However, construction sites are generally narrow and there are many places where national laws require the installation of large equipment or sedimentation basins, so the present invention is a device that satisfies these difficulties as much as possible in detail, and is a mud water treatment device. Although it is small in size, it can be installed even in narrow spaces.It has all the functions such as control over delivery, coarse sand discharge timing, and safety measures in case of overloading. has.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional assembly diagram of the present invention, and FIG. 2 is a top view of the present invention.
tll (yori/l) A plan assembly view when the retracting cover is removed, and No. 3121 shows a front view of the discharge gate. The code is 1.5 (1)...0-1 over cylinder, (2)...
・Wire mesh, (3)・Rotating bra/, (4)・Scraper, (5)・Setting screw, (6) To the driving sprocket sotohoino (7)・Passive tin rocket wheel, (8)・・Chain, (9)...Muddy water population valve, 00) Slurry outlet valve, (1υ...Water drain valve, q...Sediment introduction pipe, 0■...King, (14)... Stirring 1
゛1 room, (10...Sink# room, (16)...
m wheel, (171...Brush gear, (18)...Support leg, 09)...Earth compression pipe, (4)...Earth compression screw, 12! η...Compression dehydration chamber, (C)...Discharge gate, (C)...Opening/closing gear, ■
...pin, (c)...excessive chamber bottom, (,1)・
Sedimentation shaft, i2 car...internal gear, (to) l filter cylinder cover, i))...open 1], ■・Sedimentation chamber,
01)... Limit switch for gate stop, g34.
...Gate stop” two-phase limit switch. Patent applicant Sei Araki - Agent Patent attorney Ogawa - [;i. Procedure amendment writing method) August 177, 1981 Director of the Japan Patent Office Kazuo Wakasugi 1, Indication of the case 1982 Patent Application No. 57046 4, Agent 542 Telephone (06) 262-0500 Address Osaka City Junkei Building, 2-2-28 Minamisenba, Minami-ku Name Patent Attorney (8290) Ogawa -omi°゛゛. 5. Date of amendment order: July 6, 1982

Claims (2)

[Claims] (1) In a vertical cylindrical casing song, a p-recessed part consisting of a perforated plate, a wire mesh, and a rotating brush is interlocked with a gear, a settling shaft is passed through the center of the part, a scraper and a settling screw are keyed to the shaft, and the gear and They are interlocked by sprocket wheels, chain wheels, or gears, so that when the gear motor A is driven, they all rotate together.A sediment compression pipe consisting of an inclined cylinder with a compression screw at the exit of the sedimentation chamber and a compression dewatering chamber are installed in a separate gear motor. In this device, the current value of the geared motor B is detected, and the current value of the geared motor B is detected. A coarse particle removal device for muddy water characterized by opening and closing an exit gate. (2) When the geared motor A or B reaches an overcurrent value, the geared motor A or B is reversely rotated, and when the geared motor A or B returns to the normal value, the geared motor A or B is rotated in the forward direction. The coarse particle removal device for muddy water according to item 1.