(I) Characteristics of profile pass shot blasting machine
1. Comprehensive design technology, so that the machine has the characteristics of advanced design, reasonable structure, reliable operation and high production efficiency.
2. The full set of drawings of the ejection principle and shot blasting machine are completely drawn by computer design.
3, using a large shot blasting, high power, high throwing speed of direct centrifugal blasting device. The arrangement of the blasting device is simulated by a three-dimensional computer and the direct projectile can be obtained by processing all the sections of the workpiece.
4. Clean the chromium alloy cast iron in the room for protection. Specially-designed nuts are used for fixing. They adopt butt joints and modular construction. They are easy to replace and have a long service life.
5, the separator uses a full-blown curtain separator, the separation effect is good. The separation efficiency of pellets, slag and dust reaches 99%. The spiral conveyor adopts advanced three-stage sealing protection method, and the sealing effect is good.
6. Adopt a dust removal system consisting of cartridge dust collectors, indoor 15Mg/m3, outdoor emissions 65Mg/m3, and environmental protection indicators higher than the national emission standards.
7, the whole assembly structure, beautiful appearance, anti-rust paint and top coat double spray, to achieve the purpose of rust, surface beautification.
(B) The principle of operation through the type of shot blasting machine
1: The cleaned workpiece is placed on the input roller path, and is automatically fed into the roller path through the blasting area of ​​the shot blasting chamber. The workpiece is impacted by the high-speed projectile beam thrown by the blasting machine. The surface oxide scale, residual welding slag, Dirt and other attachments are quickly removed. The workpiece enters the clearing area through the ejection zone. The upper nozzle and the side nozzle of the cleaning device sweep away the projectiles on the surface of the pellet. The workpiece is sent out through the output roller for coating.
2: Structural features
The main structure of this machine includes: shot blasting chamber, roller system, pellet circulation system, shot blasting device, clearing device, pellet feeding system, dust removal system and electronic control system.
3: separator
Separators are also properly modified on the basis of the Swiss GF company's technology. Mainly by the reducer, auger, separation device and other components. It is composed of a curtain structure with a three-stage separation function (pure pellets, mixed pellet sand mixture). The mixture of pellets is sent to the spiral sieve in the upper part of the separator by the lifting machine. Inside and outside of the sieve are spiraled. The inner spiral sifted the sundries out. The outer spiral evenly distributes the dust and dust mixture and forms a curtain through the slit to make the airflow The curtain is passed perpendicular to the curtain flow direction to flush the dust. Projectiles, wastes, and mixtures fall into different paths depending on their specific gravity, and pure and qualified projectiles enter the hopper for use by the blaster. The undivided mixed pellets flow into the elevator and are separated again. The fine dust is sucked into the dust removal system. Purified pure air is discharged into the atmosphere and the particulate dust is captured and collected. Proper adjustment of the gaps of the adjustment plates can control the uniform cloth thickness of the curtains and obtain the separation effect. The separation effect of the separator is good, the content of sand in the pure and qualified projectile after separation is ≤ 1%, and the amount of qualified projectile in the waste is ≤ 1%.
4: Screw conveyor
(1) The spiral piece is made of 16Mn steel plate, thereby increasing its service life.
(2) There is a maintenance cover plate on the screw conveyor.
(3)Spherical bearings with square seats are used. They can be adjusted automatically when subjected to shock and vibration and have good sealing performance.
5: Loser pipeline
This machine has a dual pill control function. A ram plate is installed above each pipe to cut off the projectiles from the separator, which facilitates the maintenance of their respective blasting machines. The size of the gate opening can be adjusted, and the projectile flow rate can be adjusted to meet the requirements. Shot blaster work needs.
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