JPH11319742A - Apparatus for removing deposit in high viscosity slurry transporting piping - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform a deposit removing work by incorporating an evacuation device and an automatic hose feeding device with a self-propellable high pressure jet mall. SOLUTION: A high pressure jet mall 1 is inserted from a nozzle 2 into piping 3. Water pressurized by a high pressure water generator 4 is ejected from the jet mall 1 through a high pressure water hose 5 to remove deposits in the piping 3. The jet mall 1 has a jet nozzle for removing deposits in the front part and a jet nozzle for self-propulsion in the rear part and is capable of self-propulsion by adjusting ejection force of the front and rear parts. The jet mall 1 is connected with the hose 5 through a swivel joint 7 to be able to rotate, and the jet nozzle exerts a deposit removing effect over the whole surface in the propulsion direction. The jet mall 1 is propelled while removing deposits. Crushed substances are discharged from the piping 3 by an evacuation device 10 through a suction hose 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for removing high-viscosity and high-density deposits produced by depositing particles of a slurry in a high-viscosity slurry transport pipe.

[0002]

2. Description of the Related Art In high-viscosity slurry transport piping,
During transportation, some of the particles in the slurry are separated and settled and accumulate in the pipes. If the slurry is stored in the pipes for a long time, the accumulation progresses, and problems such as clogging of the pipes occur. .

[0003] Conventionally, pig cleaning has been performed to remove such deposits in the piping. In addition, in places and situations where pig cleaning is not possible, a commercially available pipe cleaner has been used to carry out removal work.

[0004]

However, the conventional method described above has the following problems. (1) Pig cleaning: (a) Removal work is not possible in places where pig operation is difficult, such as in-tank piping.

[0005] (b) Removal is difficult in a state where the deposition progresses and the state is close to the closed state. (2) Pipe cleaner: (a) The removal working distance is limited.

(B) It is difficult to discharge the removed deposits. (C) Since there is no self-propelling ability, labor is required for work. Therefore, an object of the present invention is to use a self-propelled high-pressure jet molding in combination with a vacuum suction device and an automatic hose feeding device in order to solve the above-described problems. It is an object of the present invention to provide an apparatus capable of performing a deposit removing operation in a place or a situation where it was impossible.

[0007]

According to the present invention, there is provided an apparatus for removing deposits in a high-viscosity slurry transport pipe, comprising: a high-pressure water generator and a vacuum suction device provided outside the transport pipe; A high-pressure water hose connected to a device, a suction hose connected to the vacuum suction device, a high-pressure jet molding connected to a tip of the high-pressure water hose, and attached to each of the high-pressure water hose and the suction hose. The high-pressure jet molding is provided at a front part on the opposite side of the propulsion injection nozzle and a propulsion injection nozzle provided at a rear part to which the high-pressure water hose is connected. A deposit nozzle for ejecting pressurized water to the deposit, and a high-pressure water hose inserted through an opening provided in the transport pipe. The water is sprayed from the removal spray nozzle of the high-pressure jet mall at the end to remove deposits in the transport pipe, and the high-pressure jet mall is self-propelled by the water sprayed from the propulsion spray nozzle. The removed sediment is suctioned from the tip of the suction hose inserted through the opening and discharged from the transport pipe.

[0008]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a partial cross-sectional side view of a straight pipe portion according to an embodiment of a deposit removing device in a high-viscosity slurry transport pipe of the present invention, and FIG. 3 is a side view showing a high-pressure jet molding used in the present invention, and FIG. 4 is a side view showing the swivel joint and the high-pressure jet molding. As shown in the drawing, a high-pressure jet molding 1 attached to the tip of a high-pressure water hose is inserted into a pipe 3 from an existing or temporary nozzle 2. The water pressurized by the high-pressure water generator 4 is supplied to the jet molding 1 via a high-pressure water hose 5.
It is blown out to remove the deposit 6 in the pipe.

The high-pressure jet molding 1 has an injection nozzle 1a for removing deposits at the front and an injection nozzle 1b for self-propulsion at the rear, and self-propulsion is achieved by adjusting the injection power at the front and rear. It becomes possible.

The high-pressure jet molding 1 is connected to a high-pressure water hose 5 via a swivel joint 7. Thereby, the high-pressure jet molding 1 becomes rotatable, and the injection nozzle 1a can exert a deposit removing effect over the entire surface in the propulsion direction.

When the high-pressure jet molding 1 is propelled while removing the sediment, the crushed material 8 becomes an obstacle. In order to prevent this, the crushed material 8 is discharged from the pipe 3 by the vacuum suction device 10 via the suction hose 9.

A high-pressure water generator 4 comprising a water tank 14 and a high-pressure pump 15 and a vacuum suction device 10 comprising a drain pump 16, a receiver 17 and a vacuum pump 18.
Is mounted on wheeled mounts 12 and 13 and is movable.

During operation, the high-pressure water hose 5 and the suction hose 7 are fed into the pipe by the hose automatic feeding device 11.

[0014]

Since the present invention is constructed as described above, it is not possible to perform pig cleaning or operation using a commercially available pipe cleaner in which a bent pipe or a pile is completely closed due to progress of deposition. Deposition and removal operations can be performed where possible, thus providing useful effects.

[Brief description of the drawings]

FIG. 1 is a partially sectional side view of a straight section according to an embodiment of a deposit removing device in a high-viscosity slurry transport pipe of the present invention.

FIG. 2 is a partial cross-sectional side view of a curved pipe portion according to an embodiment of the deposit removing device in the high-viscosity slurry transport pipe of the present invention.

FIG. 3 is a side view showing a high-pressure jet molding used in the present invention.

FIG. 4 is a side view showing a swivel joint and a high-pressure jet molding used in the present invention.

[Explanation of symbols]

 1: High-pressure jet molding 1a: Injection nozzle for deposit removal 1b: Injection nozzle for self-propulsion 2: Nozzle 3: High-viscosity slurry transport pipe 4: High-pressure water generator 5: High-pressure water hose 6: Deposit in pipe 7: Swivel Joint 8: Crushed material 9: Suction hose 10: Vacuum suction device 11: Hose automatic delivery device 12, 13: Mount with wheels 14: Water tank 15: High pressure pump 16: Drain pump 17: Receiver 18: Vacuum pump

Claims (1)

[Claims] 1. A device for removing deposits in a high-viscosity slurry transport pipe, comprising: a high-pressure water generator and a vacuum suction device provided outside the transport pipe; and a high-pressure water hose connected to the high-pressure water generator. And a suction hose connected to the vacuum suction device, a high-pressure jet molding connected to the tip of the high-pressure water hose, and an automatic delivery device for a hose attached to each of the high-pressure water hose and the suction hose. The high-pressure jet molding is pressurized to deposits, which are provided at a front part on the opposite side of the propulsion injection nozzle and the propulsion injection nozzle provided at a rear part to which the high-pressure water hose is connected. A high-pressure jet molding at the tip of the high-pressure water hose inserted through an opening provided in the transport pipe, the jet molding nozzle having a sediment removal injection nozzle for injecting water. Along with removing the sediment in the transport pipe by injecting the water from the removing spray nozzle, the high-pressure jet molding has a function of self-propelling by the water sprayed from the propelling spray nozzle. The apparatus for removing deposits in a high-viscosity slurry transport pipe, wherein the removed deposit is sucked from a tip of the suction hose inserted through the opening and discharged from the transport pipe.