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Through shot blasting

  • Steel shot blasting machine
Steel shot blasting machine

Steel shot blasting machine

Product introduction:

The steel shot blasting machine belongs to the roller pass-through shot blasting cleaning equipment, which is used for stress relief and surface derusting cleaning of large I-shaped steel and H-shaped steel structural parts with high dimensions.

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working principle:

During the cleaning process, the electrically controlled adjustable speed roller conveys the steel structure or steel into the blasting area of the cleaning machine room, and its surroundings are hit and rubbed by strong dense projectiles from different coordinate positions The scale, rust layer and its dirt quickly fall off, and the steel surface obtains a certain smooth surface and hardness, which improves the adhesion between the paint film and the steel, improves the internal quality of the steel, and extends its service life. Workpieces are loaded and unloaded at the entrance and exit rollers on both sides of the clean room.

Working principle of main functional components:

①Cleaning room

The cleaning chamber is a large-capacity chamber plate box-shaped assembly welding structure. The inner wall of the chamber is lined with ZGMn13 wear-resistant protective plate. The cleaning operation is carried out in a sealed chamber. The wear-resistant protective plate in the cleaning room is bolted with a wear-resistant cover cast nut to protect the head of the bolt from damage and easy to disassemble and replace.

②Conveying roller table

The roller table is divided into indoor conveyor roller table and loading and unloading section conveyor roller table.

The indoor roller table jacket is made of high-chromium wear-resistant sheath and limit ring. The high-chromium wear-resistant sheath is used to protect the roller table and withstand the projectile impact. The limit ring can make the workpiece run at a predetermined position to prevent deviation and cause accidents.

③ Hoist

The upper and lower pulleys adopt spherical ball bearings with square seats, which can be automatically adjusted when subjected to vibration and shock, and have good sealing performance.

④ Separator

The shot sand mixture is sent to the upper part of the separator by the elevator, and the shot dust mixture is evenly distributed, and a curtain is formed through the slit, so that the air flow passes through the curtain in a direction perpendicular to the flow direction of the curtain to wash the shot dust. The projectiles, waste materials and mixtures fall into different channels according to their specific gravities. Pure and qualified projectiles are conveyed into the hopper by a screw for use by the shot blasting machine. The unseparated mixed pellets flow into the elevator for re-separation; the fine dust is sucked into the dust removal system, the purified gas is discharged into the atmosphere, and the particulate dust is captured and collected.

The separation effect of this separator is good. After separation, the sand content in the pure qualified projectile is <1%, and the qualified projectile content in the waste is <1%.

⑤Screw conveyor

The screw conveyor is mainly composed of a reduction motor, a screw shaft, and a spiral body shell.

It adopts spherical ball bearing with square seat, which can be adjusted automatically when subjected to vibration and shock, and has good sealing performance.

⑥Pill delivery pipeline

The pill conveying pipeline has a double pill control function. Each gate is equipped with a shutter to cut off the projectiles from the separator, which is convenient for maintenance of the respective shot blasters. The opening size of the gate can adjust the projectile flow, and can also be adjusted according to The combination of the specifications of the cleaned workpieces, the number of opening and closing gates, to save energy, reduce wear on the machine, and ensure that it meets production needs.

⑦ Shot blasting machine

The introduction of advanced technology single-disc shot blasting machine has become the perfect high-level shot blasting machine in China. It is mainly composed of rotating mechanism, impeller, cover, directional sleeve, pill wheel, guard plate, etc. The impeller is made of Cr40 by forging, and the blade, directional sleeve, pill wheel and guard plate are made of high chrome.

⑧Purge device

The device adopts a high-pressure fan, and is provided with multiple sets of elastic blowing nozzles with different angles in the auxiliary chamber part of the chamber body, to purge and clean the projectiles remaining on the surface of the workpiece.

⑨Import and export seal

Workpiece inlet and outlet sealing devices are made of rubber spring steel plate. In order to prevent the projectile from splashing out of the cleaning room during shot blasting, multiple reinforced seals are provided at the inlet and outlet of the workpiece, which are characterized by strong elasticity, long life and sealing effect Excellent.

⑩Dust removal system

This system consists of a bag-type dust collector, a fan, and a dust-removing pipe to form a dust-removing system. The dust removal efficiency can reach 99.5%, which meets the requirements of GB16297-1996 Comprehensive Emission Standard for Air Pollutants; and meets GBJ4-73 Industrial Waste Three; Emission Trial Standards. The bag life is 1-2 years, which reduces the equipment cost, maintenance amount and maintenance cost, and has a high dust removal effect, so that the air containing dust is directly discharged into the air after the dust removal system, and discharged The dust concentration in the atmosphere of 100mg / m does not require other purification equipment. Dust removal pipes are designed and manufactured according to the coordinate orientation provided by users.


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