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Main structure of sand blasting machine


One of the main structures of sand blasting machine
The main structure of general pressure box type sand blasting machine
Box type sand blasting machines are mainly divided into dry box type blasting machines and liquid box type blasting machines. At present, most of the market are dry type blasting machines, and liquid blasting machines are rarely used, so we mainly introduce dry blasting machines here. The main structure of the box blasting machine.
1. Box. The box is one of the most important parts of the sand blasting machine. The name of the box is also the box. The size of the box is determined by the size of the product. For example: If your workpiece is 400 long and 200 wide 300 height, then the cabinet you choose is at least 600 long, 400 wide and 550 high. Of course, this model is generally not available on the market. Most manufacturers' box blasting machines have several standard types, such as Chuangming and South Some Taiwanese manufacturers have the ZB6060 type, with a length of 600 and a width of 600 and a height of 580. This model can be used. If the larger size is more than 1 meter, it is generally a non-standard model and needs to be customized, then you are choosing a box Try to choose the standard one during the competition, because the price is much lower than the non-standard price.
2.Dust removal fan, box type sand blasting machine, with or without a separate dust collector, but whether or not with or without a dust collector, there must be a dust removal fan, if it is not visible in the box, there is no way to work. There are three types of fan placement.The first is directly behind the box, and a hole is opened behind the box.For example, Chuangming Sandblasting Machinery Factory \ Zhaoshun Sandblasting Machinery Factory and some Taiwan-funded manufacturers use this method. It is placed on the cyclone separator. The cyclone separator is a cylinder that separates sand and dust (the specific role will be discussed later). This method is used, such as: Belden Sandblasting Machinery Factory \ Kaixin Sandblasting Machinery Factory and other manufacturers The third is to add a separate dust collector, and the fan is placed on the dust collector. So what kind of dust removal fan is generally used for the dust removal fan? The dust removal fan is generally a medium pressure fan. For the box type sand blasting machine, according to the size of the box and The size of the spray gun determines the power of the fan. Generally, it is selected above 250W.
3.Blast gun. The most important part of the sand blasting machine can be said that there is no sand blasting machine without a spray gun. Most of the box type sand blasting machines use siphon (negative pressure) spray guns, such as general spray guns, KL spray guns. (Carle type) spray gun switch on the spray gun, can save a solenoid valve, but the market is rarely used. The use is not large. The spray gun generally used is shown below. The components of the spray gun are sand core, air core, nozzle. The main and most expensive is the nozzle. At present, the nozzle materials on the market are divided into boron carbide \ silicon carbide \ tungsten carbide \ ceramics \ iron \ and other materials. Among them, it is best to use boron carbide for a long time and the service life of each material. I will mention it in later chapters.
4. Solenoid valve. The solenoid valve of the box type sand blasting machine generally uses a solenoid valve with an interface of 4 minutes. The main role of the solenoid valve is to switch on and off the gas.
5. Pressure regulating filter. Some manufacturers do not directly use the pressure regulating filter, but separate the pressure regulating filter into pressure regulating valve and filter, the effect is the same. For example, Liangshi Sandblasting Machinery Factory \ Detong Spray Sand Machinery Plant. The main function of the pressure regulating filter is to filter the water and oil in the air and adjust the pressure of the compressed air. The pressure of each product is different according to the requirements. All of them need to adjust the pressure. Generally the highest is 0.7MPA.
6.
The foot switch is a switch that controls the solenoid valve. It is divided into one-stage and two-stage. Most manufacturers use one-stage. That is, step on the foot, start blasting, and leave to stop the blasting. Two-stage is the step to start. Sandblasting, leaving or sandblasting, and then stepping down to stop sandblasting.
7. Lighting mainly plays the role of seeing
8. Tracheal air supply tube.
9. Sand pipe, sand channel, sand pipe must use special sand pipe. Wear-resistant.
10. Window glass, window glass is generally made of tempered glass, which is not easy to rot. There is also a layer of ordinary glass on the inner layer. The ordinary glass is shaved and replaced. Of course, some manufacturers directly use thicker ordinary glass.
11.Others include switches, ball valves, etc. are not described in detail here.
1 Main structure of sand blasting machine
1. Box. That is, the pressure tank is a tank with a pressure vessel produced by a pressure-qualified manufacturing enterprise. The thickness is generally at least 6MM. The thickness of the steel plate is determined according to the volume. Generally use Q235B steel plate. The design pressure is above 0.7MPA, and the working pressure is 0.65MPA. The size of the box is selected according to requirements. Generally, the 0.3-square sand blasting machine is equipped with a M8 nozzle. The air volume of the air compressor is 4 cubic meters per minute. It can spray for 30-40 minutes, and clean the area of 10-15 square meters, reaching SA2.5 level.
2. Sand blasting pipe. Sand blasting pipe generally uses 1 inch 2 points blasting pipe, which requires high wear resistance. The length of each blasting pipe is different from each manufacturer. Please pay attention when buying. If the manufacturer is 5 meters and you It takes 6 meters, then you have to buy it again. The original 5 meters is wasted and cannot be used. The sandblasting tube has a roll of 20 meters and 40 meters. Most of the market is a 20 meter roll. The price varies. Pay attention when buying.
3. Sand blasting guns. Generally, double-inlet tungsten steel spray guns are used for sand blasting guns. Now boron carbide dual-inlet air spray guns have a longer service life, but cannot be bumped and easily rotted. At present, most of them still use dual-inlet tungsten steel. Spray gun. Nozzles are divided into M6, M8, M10, M12, etc., each type of gas consumption is different,
For example, the M6 nozzle is basically a little more than 2 cubic meters.
The M8 nozzle requires 4 cubic meters (gas consumption per minute), and the air compressor screw type of 4 cubic meters per minute is about 40,000 yuan, and the piston type is about 16,000 yuan. The price is much higher than the sand blasting machine, so be sure to pay attention when buying Many users bought the open type sand blasting machine because the air compressor could not be brought up and could not be used, and they had to re-purchase the air compressor, which added trouble and burden.
4. There are many kinds of sand control valves. The key is to be wear-resistant and the price of consumables is low. The sand control valve generally has wear-resistant rubber. If it is damaged, it can be replaced. The sand control valve is generally not easy to break. The sand control valve is easy to use. Whether it directly affects the efficiency of the blasting machine.
5. Umbrella mushroom head: There is a rubber head on the top of the sand blasting tube, which is called a mushroom head or umbrella bucket.Its role is to seal the sand jar with the mushroom head upward when the air is introduced, so that the container has high-pressure gas. When the source is turned off, the gas is released, the mushroom head descends, and the sand enters from the top to form sand. The mushroom head has two types: rubber and iron. If it is not easy to break, most of the mushrooms on the market are rubber rings, which are used for The advantage of this method is to prevent the friction between the mushroom head and the steel top.This method is easy to replace. The disadvantage is that if the rubber ring wears or falls off and the user does not notice it, it is very useful to cause the mushroom head to fly out, causing a tragedy of the accident. The company also designs and manufactures another method of sealing and falling sand: that is, the mushroom head is unchanged, but the rubber ring at the sand inlet is replaced with a double-layer flange and fixed with screws, so that the mushroom head can be repaired and replaced directly on the top. Prevent the mushroom head from flying out and prevent accidents.
6. Pneumatic control system of pressure type mobile sand blasting machine
Pneumatic control system: including automatic exhaust valve, air control switch, rubber core I-shaped seat, air control sand control valve, thickening sand tee, air shutoff valve and other accessories;
Our sales related accessories are:
1) American M brand air control sand control valve:
Rubber core I-shaped seat-play a role in controlling the amount of sand produced, smooth sand production, sensitive control, need to replace the wear parts for the rubber core, this rubber core is made of wear-resistant rubber, durable.
Air control sand control valve-used with rubber core I-shaped seat, the main replacement parts are film and valve spring, easy to disassemble, made of wear-resistant rubber, durable and cheap;
Automatic exhaust valve-automatic control type, sensitive exhaust, easy to use, high safety performance, need to replace the consumable part is a film, this film is made of wear-resistant rubber, durable.
Air shut-off valve-also known as three-way air control valve, it is used to switch on and off the main origin of the sand blasting machine. It also distributes air to the bottom sand control valve and the top automatic exhaust valve. The main replacement part is the film. Made of wear-resistant rubber for sensitive control;
2) Manual butterfly sand control valve: At present, large sand blasting projects use 50-80 meters long sand blasting pipes or sand blasting with smaller particles of sand, or the rubber core of the sand control valve is hardened due to long time non-use Sand pipe plugging often occurs, and the manual control butterfly-shaped sand regulating valve is used to effectively reduce the sand pipe plugging problem caused by the resistance caused by the vertical sand drop of the ordinary sand valve due to the 45-degree inclined sand production. Butterfly sand control valve is a sand control valve commonly used in large-scale engineering sand blasting machines abroad. Thomson sand control valve has the same effect. Welcome to consult!
3) Other air control accessories (accessories of the old imported sand blasting machine): American CLEMCO type copper inlet valve, copper exhaust valve, exhaust water filter,
The new aluminum alloy air shut-off valve has a reasonable structure, strong aerodynamics, and low loss materials.
Compared with the old three-way air shut-off valve, it has the characteristics of sensitive loading and unloading, light weight, easy installation, and no rust.The key is to use an rubber ring instead of a rubber gasket, which reduces the chance of wear and increases life.
The new aluminum alloy air shut-off valve is the first choice for pressure blasting machine, mobile blasting machine, and open type blasting machine to control the main air source switch.
It can be used in combination with air-operated switches (air-operated), foot switches, and solenoid valves (electrically-operated) to fully meet customers' individual assembly needs.
Company Name: Magin Dongguan Humen Meijun Wear-resistant Sandblasting Equipment Store
Address: No. 69, Longan 5th Road, Longyan Industrial Zone, Humen, Dongguan
Phone: 0769-26955965 Contact phone: 13215392671 13238321213 http://sereio.com
elsonzhong@163.com QQ: 491440166
In addition, there is another type of sand blasting machine which is open but not high pressure. There is no pressure in the blasting tank. It uses the principle of negative pressure. This type of open sand blasting machine only needs one cubic meter of air consumption per minute, but its efficiency is not high, and it can only spray about 5-6 cubic meters per hour. It is suitable for products whose siphon type blasting cabinet is not large enough and does not require the pressure of a pressure blasting machine, such as steel pipes, long steel bars, steel plates, etc.
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