JP3279639B2 - Solid-liquid suction and transport device and method of using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for sucking and pumping a solid-liquid mixture using both a vacuum suction system and a pressurized air pumping system and a method of using the same. The present invention relates to a suction-pumping apparatus for a solid-liquid mixture having a low water content under underground construction and high suction lift conditions, such as sediment collection in a sand basin, and a method of using the same.

[0002]

2. Description of the Related Art A device for pumping earth and sand mixed in water using an underwater sand pump has long existed. However, since it has a movable portion inside, mechanical wear occurs. Often, blockage due to entanglement occurs. Further, the flow velocity in the pumping line must be a high flow velocity at which the slurry does not always settle. Generally, the flow velocity is set to 3 m / s or more under the condition of fine sand. Regardless, a large amount of water is required, and large-scale equipment is required for post-treatment of the used water.

[0003] It is also known to use a vacuum generator to suck and transport earth and sand contained in water, but in this case, the suction lift is conventionally 10 m even under absolute vacuum conditions. (760 mmHg). If the suction lift is high, the vacuum suction effect will be reduced, and sludge and soil with high specific gravity and viscosity cannot be pumped. Also,
It is necessary to maintain a constant wind speed in the lifting line,
A separate power for constantly supplying air to the suction tip is required, and the structure becomes complicated. Furthermore, it is necessary to finely adjust the supply air amount depending on the transfer condition and the pressure condition in the lifting line, which results in a complicated control operation.

[0004] There is also a solid-liquid transfer device using a pressurized air pumping method using an air compression device. However, the pumping device itself using this method does not have a function of guiding a body to be lifted into a lifting pipe. It is necessary to separately install a mechanical device at the bottom of the ground to introduce the lifted object, and it is difficult to secure the installation space at the bottom of the ground.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to consistently suction and unload sludge and earth and sand having high specific gravity and viscosity without causing troubles such as mechanical wear of moving parts and entanglement. It is an object of the present invention to provide a solid-liquid suction / lift device which requires a small installation space at the ground floor, functions effectively underground work and high suction lift conditions, has a simple structure and is easy to operate, and a method of using the same.

[0006]

In the solid-liquid suction / pumping device according to the present invention, a mixing chamber is formed by joining an air supply pipe extended from a solid-liquid suction port air compressor opened in a liquid supply source to form a mixing chamber. A pumping pipe led from a solid-liquid recovery tank that is brought into a negative pressure by the operation of the generator is opened into the mixing chamber, and an opening / closing mechanism is attached to the solid-liquid suction port and the air supply pipe, respectively, and the vacuum generation is performed. A vent is opened from the device to the atmosphere, and an opening and closing mechanism is attached to the vent.

In the use of the solid-liquid suction and pumping device of the present invention, the vacuum generating device and the air compression device are driven to open and close the solid-liquid suction port and the air supply pipe opening and closing mechanism, respectively. By also closing the
The pumping tube and the mixing chamber together with the solid-liquid recovery tank are brought into a negative pressure state, and then the opening and closing mechanism of the solid-liquid suction port is opened to transfer the solid-liquid in the liquid supply source from the solid-liquid suction port to the pumping tube and the mixing chamber. After a certain amount of air has been sucked in, the air pumped from the air supply pipe is mixed with the solid-liquid in the pumping pipe and the mixing chamber by opening and closing the solid-liquid suction port opening and closing mechanism and opening and closing the air supply pipe opening and closing mechanism. Then, the opening / closing mechanism of the ventilation port is opened, and the solid liquid in the pumping pipe and the mixing chamber is pumped into the solid / liquid recovery tank by the compressed air flow from the air supply pipe, and the opening / closing operation of the opening / closing mechanism is repeated. By doing so, the solid-liquid from the liquid supply source is sequentially and intermittently pumped into the solid-liquid recovery tank.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments will be described below with reference to the drawings.

1a is a vacuum generator using a water ring type vacuum pump or blower, 1b is an air compressor, 2 is a solid-liquid recovery tank which is made negative pressure by the operation of the vacuum generator 1a, 3 is a vacuum generator A liquid recovery tank interposed between 1a and the solid-liquid recovery tank 2, a liquid pipe 4 for conducting the solid-liquid recovery tank 2 and the liquid recovery tank 3, and a vacuum pump 5 in the vacuum generator 1a Alternatively, a ventilation pipe 5 'in which the intake port of the blower is connected to the upper part of the liquid recovery tank 3 is a ventilation port branched from the ventilation pipe 5 and opened to the atmosphere. Reference numeral 6 denotes a liquid supply source in which the solid-liquid mixture to be pumped exists, and 7 denotes a solid-liquid suction port 8 opened in the liquid supply source 6 and an air supply pipe 9 extended from the air compressor 1b. And 10a is an opening / closing mechanism attached to the solid-liquid suction port 8, 10b is an opening / closing mechanism attached to the air supply pipe 9, and 10c is an opening / closing mechanism attached to the ventilation port 5 '. Reference numeral 11 denotes a lifting pipe guided from the solid-liquid recovery tank 2, and a leading end portion 12 of which is opened into the mixing chamber 7. Reference numeral 13 denotes a submersible pump installed in the liquid recovery tank 3, reference numeral 14 denotes a liquid return pipe derived from a discharge port of the submersible pump 13, and a leading end portion 15 of which is directed downward in the liquid supply source 6. The opening is open.

[0010]

In the configuration shown in FIG. 1, the vacuum generator 1a and the air compressor 1b are driven to open / close the solid-liquid suction port 8 and the opening / closing mechanisms 10a and 10b of the air supply pipe 9 and open / close the ventilation port 5 '. If the mechanism 10c is also closed, the inside of the pumping pipe 11 and the mixing chamber 7 together with the solid-liquid recovery tank 2 will be in a negative pressure state, and the air in the air feeding pipe 9 will be in a state where air is accumulated. Next, the opening and closing mechanism 10a of the solid-liquid suction port 8 is opened to suck a certain amount of water and earth and sand in the liquid supply source 6 from the solid-liquid suction port 8 into the pumping pipe 11 and the mixing chamber 7,
When the opening / closing mechanism 10a of the solid-liquid suction port 8 is closed and the opening / closing mechanism 10b of the air supply pipe 9 is opened, the air compressed in the air supply pipe 9 rapidly enters the pumping pipe 11 and the mixing chamber 7. It is pumped and expanded, mixed with the solid liquid in the pumping tube 11 and the mixing chamber 7, and the apparent specific gravity of the solid is reduced.
In this state, the opening and closing mechanism 10c of the ventilation port 5 'is opened, and the water and the earth and sand in the pumping tube 11 and the mixing chamber 7 are pumped up by the action of the compressed air flow by the air compressor 1b, and the solid-liquid recovery is performed. It will be collected in the tank 2.

By repeating the above operation at appropriate time intervals adjusted according to the suction conditions, the water and the earth and sand of the liquid supply source 6 are intermittently pumped and sequentially collected in the solid-liquid recovery tank 2. Because The liquid component of the solid-liquid recovered in the solid-liquid recovery tank 2 is transferred into the liquid recovery tank 3, and the liquid return pipe 14 is operated by the operation of the submersible pump 13.
When the liquid component flows out from the leading end portion 15, a mixing and stirring action occurs in the liquid supply source 6, and the solid component from the solid-liquid suction port 8 is discharged. This makes it easier to suck in. The solids remaining in the solid-liquid recovery tank 2 are discharged at an appropriate time from the lower bottom discharge port, are separately loaded on a transport mechanism (not shown), and are transported to a predetermined disposal place.

[0012]

According to the present invention, the suction and pumping of sludge and earth and sand having high specific gravity and viscosity can be effectively performed even under high suction head conditions without causing troubles such as mechanical wear and entanglement. It is possible to provide a solid-liquid suction and transport device which is performed, has a simple structure and is easy to operate, and a method of using the same.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a pipeline of a solid-liquid suction and transport device of the present invention.

FIG. 2 is a vertical sectional side view of a main part of the solid-liquid suction and transport device of the present invention.

[Explanation of symbols]

 1a Vacuum generator 1b Air compressor 2 Solid-liquid recovery tank 5 'Vent 6 Liquid supply source 7 Mixing chamber 8 Solid-liquid suction port 9 Air supply pipe 10a Opening / closing mechanism 10b Opening / closing mechanism 10c Opening / closing mechanism 11 Lifting pipe

Continuation of the front page (72) Inventor Saburo Shimonobu 4-16-40 Tsurumi, Tsurumi-ku, Osaka-shi, Osaka Inside Tsurumi Seisakusho (72) Inventor Takeyuki Nishimura 4-16-40, Tsurumi-ku, Tsurumi-ku, Osaka-shi, Osaka Inside Tsurumi Seisakusho Co., Ltd. (72) Inventor Masahiro Kobayashi 4-16-40, Tsurumi-ku, Tsurumi-ku, Osaka, Osaka Prefecture Inside Tsurumi Seisakusho Co., Ltd. (72) Toshimitsu Ikeuchi 4--16-40 Tsurumi, Tsurumi-ku, Osaka-shi, Osaka Inside Tsurumi Seisakusho Co., Ltd. (72) Inventor Noboru Kouoka 4-16-40, Tsurumi-ku, Tsurumi-ku, Osaka-shi, Osaka Inside Tsurumi Seisakusho Co., Ltd. (72) Inventor Yu Kubo 4--16-40, Tsurumi-ku, Tsurumi-ku, Osaka-shi, Osaka No. Tsurumi Manufacturing Co., Ltd. (72) Inventor Hideki Yonemura 4-16-40, Tsurumi-ku, Tsurumi-ku, Osaka-shi, Osaka Examiner, Tsurumi Manufacturing Co., Ltd. Koji Kamemaru (56) References JP-A-63-253200 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) F04F 3/00 F04F 1/18 F04F 1/02

Claims (2)

(57) [Claims] 1. A mixing chamber (7) in which a solid-liquid suction port (8) opened in a liquid supply source (6) and an air supply pipe (9) extended from an air compression device (1b) are joined. Then, a pumping pipe (11) guided from a solid-liquid recovery tank (2), which is brought into a negative pressure by the operation of the vacuum generator (1a), is opened into the mixing chamber (7), and the solid-liquid Opening and closing mechanisms (10a) and (10b) are attached to the suction port (8) and the air supply pipe (9), respectively.
Also, a solid-liquid suction / pump device having an opening (5 ') opened from the vacuum generator (1a) to the atmosphere and an opening / closing mechanism (10c) attached to the opening (5'). . 2. A mechanism for opening and closing a solid-liquid suction port (8) and an air supply pipe (9) by driving a vacuum generation device (1a) and an air compression device (1b) in the solid-liquid suction and transport device according to claim 1. By closing (10a) and (10b) and closing the opening / closing mechanism (10c) of the vent (5 '), respectively, the pumping pipe (11) and the mixing chamber (2) together with the solid-liquid recovery tank (2). 7) A negative pressure state is established in the inside, and then the opening / closing mechanism (10a) of the solid / liquid suction port (8) is opened to supply the liquid source (6).
After sucking a fixed amount of the solid-liquid from the solid-liquid suction port (8) into the pumping pipe (11) and the mixing chamber (7), the opening / closing mechanism (10a) of the solid-liquid suction port (8) is closed. By opening the opening / closing mechanism (10b) of the air supply pipe (9), the air pressure-fed from the air supply pipe (9) is discharged.
Then, the mixture is mixed with the solid-liquid in the mixing chamber (7), and the opening / closing mechanism (10c) of the ventilation port (5 ') is opened to operate the pumping pipe (11) by the compressed airflow from the air supply pipe (9). The solid-liquid in the mixing chamber (7) is pumped into the solid-liquid recovery tank (2), and the opening and closing operations of the opening and closing mechanisms (10a), (10b), and (10c) are repeated, whereby the liquid supply source (6 )) The method for using a solid-liquid suction and pumping device, characterized in that the solid-liquid is sequentially and intermittently pumped into the solid-liquid recovery tank (2).