Sand blasting machine Aluminum profile processing equipment Double pass shot blasting machine Automatic metal cleaning sanding machine
Through shot blasting machine is a multi-functional steel pretreatment line for cleaning welded structural parts, H steel, section steel, space truss and steel plate. The layout of the shot blasting device is multi angle. The dual disk blade shot blasting device is selected to shoot high-speed and dense shot bundles to hit each part of the original steel. The rust layer, welding slag, oxide skin and dirt on each surface of the steel will fall off quickly, and a smooth and clean surface with a certain roughness will be obtained, which improves the adhesion between the paint film and the steel surface, It also improves the strength and corrosion capacity of steel, improves the internal quality of steel, and extends its service life. The functional parts of this machine are composed of cleaning room, indoor conveying roller table, feeding and discharging conveying roller table, shot blasting machine, shot circulation system (including separator, vertical and horizontal screw conveyor, shot recovery mechanism and shot supply pipeline), purging mechanism, dust removal, electrical control and other parts.
Features of profile passing shot blasting machine
1. Comprehensive digestion and absorption of Swiss GF DISA design technology, so that this machine has the characteristics of design, reasonable structure, reliable operation and high production efficiency.
2. The projection schematic diagram and the complete set of drawings of the shot blasting machine are completely designed and drawn by computer.
3. The direct connection centrifugal shot blasting machine with large shot blasting quantity, high power and high shooting speed is adopted. The layout of the shot blasting device is simulated by computer 3D dynamic simulation, and all sections of the workpiece can be processed to obtain the direct shot of the shot.
4. The chrome alloy cast iron used in the cleaning room is used for protection, special nuts are used for fixation, the seam is connected, and the building block structure is used for installation. The replacement is simple and convenient, and the service life is long.
5. The separator adopts full curtain separator with good separation effect. The separation efficiency of pellets, slag and dust reaches 99%.
Spiral conveying adopts three-level sealing protection mode, with good sealing effect.
6. The dedusting system composed of filter cartridge deduster is adopted, with indoor emission of 15Mg/m3 and outdoor emission of 65Mg/m3, which is higher than the emission standard.
7. The assembled structure of the whole machine has a beautiful appearance. Antirust paint and finish paint are sprayed in two layers to achieve the purpose of rust prevention and surface beautification.
Working principle of profile passing shot blasting machine
It is sent to the closed shot blasting room from the conveying roller table, and shot to the surface of the workpiece with steel sand (shot) accelerated by the high-speed rotating impeller of the shot blasting machine to impact the surface of the workpiece, scrape the rust and dirt on the surface of the workpiece, and then sweep the accumulated shot and floating dust on the surface of the workpiece with sweeping, roller brush, shot collecting screw and high pressure blow pipe, (This is the steel structure profile shot blasting machine. Only the steel plate can be processed by sweeping, rolling brush, shot collection and high-pressure blow pipe. Although some of the steel structure shot blasting machines also use high-pressure blow pipe to blow the shot accumulation on the surface of the workpiece, the effect is not ideal, and the customer removed it after using it for a short time.) It is sent out by the sending roller table, so that the steel can achieve the purpose of rust removal and rust prevention.
Structural characteristics
The machine structure includes: shot blasting room, roller table system, shot circulation system
Shot blasting device, shot cleaning device, shot supply system, dust removal system, electric control system and other components.
1. Shot blasting cleaning room
The shot blasting chamber is welded by steel plates and profiles, with box structure,
Including inlet sealing chamber, shot blasting chamber and shot cleaning chamber shot blasting machine:
(1) Structure
This cleaning room is composed of cleaning rooms, which are of large volume cavity structure. The upper part of the room body is box shaped, and the lower part is cone shaped. The cleaning operation is carried out in the sealed chamber, specifically including front and rear auxiliary rooms, room body, rubber curtain, shot blasting room guard board, shot blasting machine, etc.
A、 A total of 1-10 shot blasters are installed on the chamber body (the number of shot blasters varies with different machines). After testing and actual verification, the space structure can achieve the cleaning effect on the workpiece.
B、 The cleaning room is a combination of multiple rooms, and the front and rear are sealed rooms. Multiple rubber curtains are set inside to prevent bullets from flying out. At the same time, there is a certain negative pressure inside the room to prevent dust from escaping.
C、 The chamber body is equipped with a wear-resistant guard plate to protect the chamber body wall plate from wear and prolong the service life of the chamber body by more than ten times. At the same time, the reflection function of the projectile can be used to continue to hit the workpiece surface, improving the cleaning quality and efficiency. Grid and pedal are installed on both sides of conical shot collecting bucket to block sundries, protect screw conveyor and facilitate maintenance personnel to walk.
D、 The fastening bolts of the wear-resistant guard board in the shot blasting chamber are connected with special wear-resistant nuts to protect the head of the bolt from damage, making it easier to disassemble and replace the guard board.
3. Shot blasting machine
The shot blasting machine manufactured by our company has become the current domestic high-level shot blasting machine. It is composed of rotating mechanism, impeller, housing, directional sleeve, shot distributing wheel, wear-resistant guard plate, etc. The shot blasting machine has the following advantages:
(1) The ejection speed is high, and the projectile ejection speed can reach 70-75m/s.
(2) Cleaning efficiency increased by 30%.
(3) The noise is reduced by 8-10dB.
(4) Wear resistant parts have a long service life.
(5) The blade replacement is simple and convenient.
4. Hoist
The hoist is improved based on the technology of GF Company in Switzerland. It is composed of upper and lower transmission, cylinder, belt, hopper, etc.
(1) The elevator housing is bent and shaped.
(2) The upper and lower pulleys of the elevator are made of rib plates, wheel plates and wheel hubs, which are assembled and welded into polygonal structure pulleys to enhance friction, avoid slipping and extend the service life of the belt. At the same time, the upper and lower pulleys use square seat spherical bearings, which can automatically adjust when subjected to shock and vibration, and have good sealing performance.
(3) Adjust the bolts on both sides of the upper shell of the elevator to drive the pulling plate to move up and down to maintain the tightness of the elevator belt.
(4) Open the cover plate shell on the elevator middle shell to repair and replace the hopper and overlapping belt.
(5) Open the cover plate on the lower shell of the elevator to eliminate the blockage of the bottom projectile.
5. Separator
The separator is also improved based on the technology of GF Company in Switzerland. It is composed of reducer, screw conveyor, separation device, etc. Curtain structure composition with three-stage separation function (pure shot, mixed shot dust sand mixture). The shot dust mixture is sent by the elevator to the spiral screen at the upper part of the separator. There are internal and external spirals in the screen. The internal spirals screen out the sundries. The external spirals evenly distribute the shot dust mixture, forming a curtain through the seam, so that the air flow passes through the curtain in the direction perpendicular to the curtain flow to flush the shot dust. The shot, waste and mixture fall into different channels according to their different specific gravity, and the pure and qualified shot enters the hopper for use by the shot blasting machine. The un separated mixed pellets flow into the elevator for re separation, the fine dust is sucked into the dust removal system, the purified air is discharged into the atmosphere, and the granular dust is captured and collected. Properly adjusting the gap of each adjusting plate can control the uniform fabric thickness of the curtain and obtain the separation effect.
The separator has good separation effect. After separation, the sand content in pure qualified shot is ≤ 1%, and the qualified shot content in waste is ≤ 1%.
6. Auger
(1) The spiral slice is made of 16Mn steel plate, thus improving its service life.
(2) The auger is equipped with a cover plate for maintenance.
(3) The outer spherical bearing with square seat is adopted, which can automatically adjust when subjected to shock and vibration, and has good sealing performance.
