CN215470530U

CN215470530U - DN5000 type large-diameter steel pipe inner and outer wall surface treatment system

Info

Publication number: CN215470530U
Application number: CN202023264727.0U
Authority: CN
Inventors: 王修山; 吕飞; 张亚
Original assignee: Jiangsu Yizhong Cnc Machine Tool Co ltd
Current assignee: Jiangsu Yizhong Cnc Machine Tool Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2022-01-11
Anticipated expiration: 2030-12-30

Abstract

The utility model relates to the technical field of steel pipe surface treatment, and discloses a DN5000 type large-diameter steel pipe inner and outer wall surface treatment system which comprises a shot blasting chamber, an abrasive material control unit, an abrasive material recycling, sorting and storing system, a ventilating and dedusting system, a trolley conveying system, an inner wall shot blasting system, an outer wall shot blasting system, a lifting moving trolley and an electrical control system, can absorb and recycle a small amount of steel shots remained on the inner wall of the steel pipe, ensures that no steel shots are remained on the inner wall of a workpiece, avoids manual cleaning operation, and is realized by surface treatment equipment special for the steel pipe, the steel pipe inner and outer wall cleaning strengthening device is used for cleaning and strengthening the inner and outer walls of a steel pipe, not only can remove the corrosion on the surface of a workpiece, improve the fatigue strength of the workpiece, ensure that the workpiece obtains a clean surface with certain roughness, increase the adhesive force of a paint film, and improve the surface quality and the anti-corrosion effect. The treatment efficiency is fast, the quality is high, no steel shot splashes, and the dust meets the environmental protection requirement.

Description

DN5000 type large-diameter steel pipe inner and outer wall surface treatment system

Technical Field

The utility model relates to the technical field of steel pipe surface treatment, in particular to a DN5000 type large-caliber steel pipe inner and outer wall surface treatment system.

Background

At present, manual sand blasting is usually adopted for surface treatment of the inner wall and the outer wall of a large-caliber steel pipe, an operator holds a spray gun to perform sand blasting operation on a workpiece in a short distance, the labor intensity is high, the working environment is poor, and the health of workers is damaged. And part of equipment is open shot blasting operation, so that the dust is large, steel shots splash more, and human body injury is easily caused.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a DN5000 type large-caliber steel pipe inner and outer wall surface treatment system.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: a DN5000 type large-diameter steel pipe inner and outer wall surface treatment system comprises a shot blasting chamber, an abrasive material control unit, an abrasive material recycling, sorting and storing system, a ventilating and dedusting system, a trolley conveying system, an inner wall shot blasting system, an outer wall shot blasting system, a lifting moving trolley and an electrical control system.

Preferably, the shot blasting chamber is of a sealed frame type structure and consists of the shot blasting chamber, a front sealing chamber and a rear sealing chamber. The structure of 4 groups of high-power direct-connected impeller heads arranged in the impeller blasting chamber is advanced, 5 protective curtains are arranged in the front sealing chamber, the outer wall of a steel pipe is wrapped, a sealing space is formed by the protective curtains and the outer wall of the steel pipe in a fit mode, a roller shutter type gate is arranged in the sealing chamber, when the steel pipe is processed, the gate can be closed, the sealing performance is ensured, and the surface processing of the inner wall and the outer wall can be completed simultaneously in the impeller blasting chamber.

Preferably, abrasive material control unit, abrasive material are retrieved and are selected separately storage system and comprise bottom conveyor belt, horizontal auger, lifting machine, separator, knockout pipe and electric valve, and the abrasive material gets into bottom conveyor belt through the blanking fill, carry to horizontal auger by the belt, carry to the lifting machine again through the auger, get into the storage case through the separator, get into the impeller head through knockout pipe and valve, realize abrasive material recycling.

Preferably, the ventilation and dust removal system comprises a dust remover, a fan and a dust removal air pipe connected with the dust remover, wherein an air suction port of the dust removal air pipe is communicated with the shot blasting chamber, the structure of the steady-flow type sedimentation dust remover is a combination of low-speed sedimentation, cyclone and cloth bag gold filtration, and the service life of the ventilation and dust removal system is prolonged by more than 50% by adopting a nanoscale cloth bag material, so that the dust removal efficiency really reaches 99.9%.

Preferably, the trolley conveying system comprises 2 linear traveling trolleys and a steel pipe rotating rolling frame. And the outside of the trolley is subjected to protection treatment. The dolly can realize the independent action, also can realize the synchronization action, it is rotatory that the frame passes through motor reducer drive gyro wheel to rotate to roll, it is rotatory to roll the total 4 groups of initiative bearing rollers of frame, it is rotatory to drive the steel pipe through motor reducer drive gyro wheel rotation, the bearing roller surface adopts wave structural design, the shot of being convenient for is got rid of, it has the shot to get into to have avoided between steel pipe and the gyro wheel, roll and cause the steel pipe surface to produce the indentation, through the rectilinear movement of platform truck and the rotary motion who rolls the frame, can realize that the steel pipe spiral advances, obtain comprehensive clearance.

Preferably, the inner wall shot blasting system comprises a special shot blasting device for the inner wall of the steel pipe, a throwing head connecting rod, a movable trolley, a dust remover and an automatic shot suction mechanism, the dust remover is mounted on the lifting movable trolley, one end of the throwing head connecting rod is hinged and fixed on the lifting movable trolley, the other end of the throwing head connecting rod is connected with the shot blasting device, a movable lifting support is arranged at the front end of the lifting movable trolley and used for supporting the throwing head connecting rod, and the lifting support can move up and down in the vertical direction to drive the throwing head connecting rod to move up and down.

Preferably, the strip-shaped permanent magnets are arranged at the bottom of the periphery of the throwing port of the shot blasting device special for the inner wall of the steel pipe and can adsorb steel shots, so that a sealed steel shot protective layer is formed between the bottom of the throwing port and the inner wall of the steel pipe in a stroke, and the thrown steel shots cannot splash out. And a grinding bin is arranged at the top of the special impeller head for the inner wall of the steel pipe and used for storing steel shots.

(III) advantageous effects

Compared with the prior art, the utility model provides a DN5000 type large-caliber steel pipe inner and outer wall surface treatment system, which has the following beneficial effects:

1. the DN5000 type large-caliber steel pipe inner and outer wall surface treatment system is used for cleaning and strengthening the inner and outer walls of a steel pipe through special surface treatment equipment for the steel pipe, can remove corrosion on the surface of a workpiece, improve the fatigue strength of the workpiece, obtain a clean surface with certain roughness, increase the adhesive force of a paint film, and improve the surface quality and the anticorrosion effect. This novel can realize the steel pipe in totally enclosed space, accomplish the surface treatment of inside and outside wall simultaneously, the treatment effeciency is fast, and the high quality does not have the shot to splash, and the dust satisfies the environmental protection requirement.

Drawings

FIG. 1 is a schematic flow chart of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a DN5000 type large-caliber steel pipe inner and outer wall surface treatment system includes a shot blasting chamber, an abrasive material control unit, an abrasive material recovery, sorting and storage system, a ventilation and dust removal system, a trolley conveying system, an inner wall shot blasting system, an outer wall shot blasting system, a lifting moving trolley and an electrical control system.

The shot blasting chamber is of a sealed frame type structure and consists of a shot blasting chamber, a front sealing chamber and a rear sealing chamber. The shot blasting machine is characterized in that 4 groups of high-power direct-connected shot blasting machines are arranged in the shot blasting chamber, the structure is advanced, the service life is long, the maintenance is simple and convenient, the efficiency is improved by 20% compared with that of a conventional shot blasting machine, and the maintenance cost is saved by 50%. The preceding seal chamber has arranged 5 protection curtains, wraps up the steel pipe outer wall, forms sealed space with the laminating of steel pipe outer wall. The rear sealing chamber is provided with a roller shutter type gate, and the gate can be closed when steel pipe treatment is carried out, so that the sealing performance is ensured. The surface treatment of the inner wall and the outer wall can be simultaneously finished in the shot blasting chamber.

The abrasive control unit and the abrasive recycling, sorting and storing system are composed of a bottom conveying belt, a transverse packing auger, a lifter, a separator, a sand falling pipe and an electric valve. Abrasive materials enter a bottom conveying belt through a blanking hopper, are conveyed to a transverse packing auger through the belt, are conveyed to a hoister through the packing auger, enter a storage box through a separator, and enter a shot blasting machine through a sand blanking pipe and a valve, so that the abrasive materials are recycled.

The ventilation and dust removal system comprises a dust remover, a fan and a dust removal air pipe connected with the dust remover, wherein an air suction port of the dust removal air pipe is communicated with the shot blasting chamber. The steady flow type sedimentation dust collector structure combines low-speed sedimentation, cyclone and bag filtration gold dust collection, adopts nano-grade bag materials, prolongs the service life by more than 50 percent, ensures that the dust collection efficiency really reaches 99.9 percent, and ensures that the dust collection emission is superior to the national standard.

The trolley conveying system comprises 2 linear walking trolleys and a steel pipe rotating rolling frame. And the outside of the trolley is subjected to protection treatment. The trolley can realize independent action and synchronous action. The rotary rolling frame drives the roller to rotate through the motor reducer, the rolling frame is provided with 4 groups of driving carrier rollers, and the roller is driven to rotate through the motor reducer to drive the steel pipe to rotate. The surface of the carrier roller adopts a wave structure design, so that steel shots are conveniently discharged, and the phenomenon that steel shots enter between a steel pipe and a roller to roll to cause indentation on the surface of the steel pipe is avoided. The steel pipe can advance spirally through the linear movement of the trolley and the rotary movement of the rolling frame, and comprehensive cleaning is achieved.

The inner wall shot blasting system consists of a special shot blasting device for the inner wall of the steel pipe, a head throwing connecting rod, a movable trolley, a dust remover and an automatic shot suction mechanism. The movable trolley is provided with a dust remover, one end of the throwing head connecting rod is hinged and fixed on the movable trolley, the other end of the throwing head connecting rod is connected with the impeller head, the front end of the throwing head connecting rod is provided with a movable lifting support for supporting the throwing head connecting rod, and the lifting support can move up and down in the vertical direction to drive the throwing head connecting rod to move up and down.

When the inner wall is cleaned, the steel pipe rotates, the impeller head is conveyed to the inside of the steel pipe through the throwing head connecting rod and the movable trolley, the lifting support descends to enable the throwing port wall of the special impeller head for the inner wall of the steel pipe to be attached to the inner wall of the steel pipe independently, a local closed area in the stroke enables the throwing port to conduct spiral advancing through rotation of the steel pipe and linear movement of the trolley, and therefore cleaning operation of the inner wall is completed.

The strip-shaped permanent magnets are arranged at the bottom of the periphery of the throwing opening of the shot blasting device special for the inner wall of the steel pipe and can adsorb steel shots, so that a sealed steel shot protective layer is formed between the bottom of the throwing opening and the stroke of the inner wall of the steel pipe, and the thrown steel shots cannot splash out. And a grinding bin is arranged at the top of the special impeller head for the inner wall of the steel pipe and used for storing steel shots. An electric valve is arranged between the grinding bin and the shot blasting blade, and when the valve is opened, the steel shots are thrown out through the high-speed rotating blade. The top of the grinding bin is connected with the dust remover through a pipeline on the connecting rod, negative pressure of the dust removal fan is used for recovering the steel shot into the grinding bin when rebounding after impacting a workpiece, and dust is removed into the dust remover on the trolley through the pipeline. The special impeller head for the inner wall of the steel pipe can realize the circular treatment operation of the inner wall of the large-diameter steel pipe, and has high cleaning efficiency.

An automatic shot suction device is arranged between the projectile head connecting rod and the projectile head, so that a small amount of steel shots remained on the inner wall of the steel pipe can be absorbed and recovered, the inner wall of a workpiece is ensured to have no steel shot residues, and the manual cleaning operation is avoided.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a DN5000 type heavy-calibre steel pipe inside and outside wall surface treatment system, includes shot-blasting room, abrasive material the control unit and platform truck conveying system, its characterized in that: the processing system also comprises an abrasive material recovery, sorting and storage system, a ventilation and dust removal system, an inner wall shot blasting system, an outer wall shot blasting system, a lifting moving trolley and an electrical control system;

the shot blasting chamber is of a sealed frame type structure and consists of a shot blasting chamber, a front sealing chamber and a rear sealing chamber;

the abrasive control unit and the abrasive recycling, sorting and storing system are composed of a bottom conveying belt, a transverse auger, a lifter, a separator, a sand falling pipe and an electric valve;

the trolley conveying system comprises 2 linear walking trolleys and a steel pipe rotating rolling frame.

2. The DN5000 type large-caliber steel pipe inner and outer wall surface treatment system according to claim 1, characterized in that: the front sealing chamber is provided with 5 protective curtains, the outer wall of the steel pipe is wrapped, a sealing space is formed by being attached to the outer wall of the steel pipe, and the rear sealing chamber is provided with a roller shutter type gate.

3. The DN5000 type large-caliber steel pipe inner and outer wall surface treatment system according to claim 1, characterized in that: the ventilation and dust removal system comprises a dust remover, a fan and a dust removal air pipe connected with the dust remover, wherein an air suction port of the dust removal air pipe is communicated with the shot blasting chamber.

4. The DN5000 type large-caliber steel pipe inner and outer wall surface treatment system according to claim 1, characterized in that: the steel pipe rotary rolling frame drives the idler wheels to rotate through the motor speed reducer, the number of the steel pipe rotary rolling is 4, and the surfaces of the idler rollers are designed in a wave structure.

5. The DN5000 type large-caliber steel pipe inner and outer wall surface treatment system according to claim 1, characterized in that: the inner wall shot blasting system consists of a special shot blasting device for the inner wall of the steel pipe, a head throwing connecting rod, a movable trolley, a dust remover and an automatic shot suction mechanism;

the lifting moving trolley is provided with a dust remover, one end of the throwing head connecting rod is hinged and fixed on the lifting moving trolley, the other end of the throwing head connecting rod is connected with the impeller head, and the front end of the throwing head connecting rod is provided with a movable lifting support for supporting the throwing head connecting rod.

6. The DN5000 type large-caliber steel pipe inner and outer wall surface treatment system according to claim 1, characterized in that: the bottom all around of the mouth that casts of special impeller head of steel pipe inner wall is installed bar permanent magnet, and special impeller head top of steel pipe inner wall is equipped with the grinding feed bin, has electric valve between grinding feed bin and the shot-blasting blade, and grinding feed bin top and dust remover pass through the pipeline on the connecting rod and link to each other.