The wind recovery sandblasting room adopts the principle of pneumatic conveying and honeycomb sand absorption floor technology to realize sandblasting and sand recycling operations, and is equipped with a filter cartridge dust collector to suck sandblasting dust into the dust removal pipeline, so that the tail gas meets the national environmental protection emission standard; The equipment does not need Jiaolong, belt conveyor, bucket elevator and other mechanical transportation machinery, and the failure rate is lower than that of mechanical recovery sandblasting room; The infrastructure is shallow (800-1500mm), and it can also be installed directly on the ground without digging a pit, which reduces the cost and construction period. It is mainly applicable to sandblasting rooms below 35 meters.
|Working principle of sand blasting system
|Working principle of sand recovery system
The sand is stored in the sandblasting tank of the sandblasting host. When sandblasting is carried out, the combined valve on the sandblasting tank acts to jack up the sand seal bracket on the sandblasting tank and pressurize the sandblasting tank; At the same time, the sand valve and boost valve under the sandblasting tank are opened; As the sand blasting tank is pressurized, the sand material is forcibly pressed out from the sand inlet of the sand valve to the sand outlet, and the sand material at the sand outlet of the sand valve is accelerated by boosting the air flow; The mixed flow of the accelerated sand flow passes through the sand blasting pipe to the high-speed sand blasting gun and further accelerates the sand in the high-speed sand blasting gun (boosting the air flow to accelerate to supersonic speed); The accelerated sand is sprayed to the surface of the workpiece to be treated at a high speed, so as to achieve the purpose of surface cleaning and strengthening of sand blasting operation.
The air flow outside the wind recovery sandblasting room enters the sandblasting room through the shutters on both sides of the sandblasting room, and then enters the sandblasting room in the sandblasting room through the uniform flow plate on the top of the sandblasting room. A top-down air flow is formed in the cross section of the sandblasting room, which enters the abrasive separation system through the honeycomb sand absorption floor, and separates the abrasive, dust and dirt through the abrasive separator, The useful sand enters the sand blasting tank for continuous recycling, and the dust and dirt enter the dust removal system with the air flow. After being filtered by the dust removal system, the clean air is discharged into the atmosphere, and the dust and dirt are stored in the dust drum for regular cleaning.
The abrasive sprayed on the surface of the workpiece and the welding slag, oxide skin, dust, etc. of the workpiece will fall on the grille for filtration, and then most of the good sand and dust will fall on the honeycomb sand absorption floor to participate in the next sand blasting cycle; The large sundries filtered from the grille need to be cleaned regularly, and the useless sundries such as welding slag, oxide skin and dust sorted out from the sand dust separator will automatically enter the dust removal system for filtration At the same time, in order to ensure that sandblasting workers can have a clear working line of sight during sandblasting operation, this set of wind recovery sandblasting room system is equipped with an efficient filter cartridge dust collector, which adopts a scientific dust collection method to quickly suck the dust generated during sandblasting operation into the dust extraction pipeline, and filter it through an efficient dust collector. The exhaust gas discharged meets the national environmental protection requirements.
The Double-layer framework of Jiutong wind recycling sandblasting room is made of high-quality section steel, which is treated by sandblasting, rust prevention and primer coating. The outer surface is made of 75mm thick color steel sandwich plate, which is beautiful, solid and reliable, durable in corrosion prevention, good in thermal insulation and noise reduction effect (below 500Hz); Wear resistant rubber plates or manganese steel plates ≥ 2mm are installed around the room to effectively protect the room; The room size can be designed according to customer requirements and workpiece size to meet the needs of multiple processes! A fixed sand blasting platform can be set in the sand blasting room to facilitate operation; The logistics door of the sandblasting room can be customized, such as electric opposite door, manual opposite door, flexible door, etc., which customers can choose by themselves; If there is sand blasting of small workpieces, it is recommended to use flexible doors. The flexible doors of small workpieces are closed and the large workpieces are opened, which can save energy and improve the working environment.
It is composed of sand blasting host, sand valve, stop valve, rotary feeding valve, high-speed spray gun, etc; The sandblasting host adopts nine way jt-11-900y high-efficiency and high-capacity sandblasting machine, which adopts the pressure maintaining working principle, and can carry out sandblasting operation with two sand control valves and two high-speed spray guns at the same time. The sand loading capacity is large, and one tank can hold about 5 tons of steel sand; The sandblasting tank is designed and manufactured in accordance with ASME standards, and can be directly applied for pressure vessels, meeting the requirements of relevant national standards; The sand valve adopts the air clamp control mode, and the air control sand valve is added, which has the advantages of convenient adjustment, safety and reliability, long service life (more than 3000 hours); The pneumatic control pipe clip type sand material control valve of clemco company of the United States is adopted, with a jacket type structure. The driving part is a diaphragm cylinder, which has stable and reliable performance, almost no maintenance, large sand production, and sensitive control. In addition, the material level sensor is installed on the sand blasting tank, which is conducive to the personnel to identify the amount of sand in the sand blasting tank. When the sand material reaches the set value, the rotary feeding valve automatically closes, which is simple and efficient.
|Rotary charging valve
|High speed sand blasting gun
砂阀主要作It is used to control the opening and closing of sand, infinitely adjust the sand blasting volume, and is installed at the bottom of the sand blasting host. The nine way adopts the imported clemco pneumatic control sand blasting valve, and the air clamp control mode, which has the advantages of high accuracy, large sand production, uniform sand production, convenient adjustment, safety and reliability, long service life (more than 3000 hours). Customers can also choose Thomson or domestic sand valves.
The function of the rotary feeding valve is to control the opening and closing of the sand and adjust the sand blasting flow. It is installed on the top of the sand blasting host. It has a jacket structure. The driving part is a diaphragm cylinder, which has stable and reliable performance, almost no maintenance, large sand output and sensitive control. In addition, the material level sensor is installed on the sand blasting tank, which is conducive to the personnel to identify the sand adding amount of the sand blasting tank. When the sand reaches the set value, the rotary feeding valve automatically closes, which is simple and efficient.
The main function of the stop valve is to close the stop valve when the rotary charging valve is replaced or repaired, so that it is not necessary to discharge all the sand when replacing and repairing the rotary charging valve, which saves time and effort.
The independently developed and designed high-speed sandblasting gun, venturi shaped nozzle, is made of boron carbide, with a long service life of 800-1000 hours; Compared with the ordinary spray gun, the venturi spray gun has faster sand blasting speed, 50% higher working efficiency, and the working efficiency can reach 35m2/h, with small recoil force, high efficiency and labor saving.
Customers can choose the sandblasting robot to complete the sandblasting operation, which has the advantages of energy conservation, environmental protection, high efficiency, high quality, intelligence, automation, high safety, wide application range and so on. It is the general trend to use the sandblasting robot for operation. Sandblasting robots include gantry type, side wall type and inner wall type, which can be divided into four to thirteen axis sandblasting robots according to the number of mechanical axes. Customers can customize and purchase according to the different processing requirements of workpieces.
The abrasive recovery system of the wind recovery sandblasting room adopts a strong honeycomb sand absorption floor, which has low capital construction cost and large bearing capacity. If the track workpiece is installed, it can slide directly to the sandblasting position, saving time and effort; Wind recovery system, abrasive recovery process will not grind, fracture, high integrity, and equipment wear is small, simple and convenient maintenance; It can realize sandblasting of different types of abrasive on different types of workpieces in the same room.
It is composed of dust collector, chimney, dust suction and discharge pipeline, pulse valve, pulse meter and dust removal fan; Generally, it is recommended that the filter cartridge be used for dust removal, and the customer can also choose the filter bag type dust collector; Nine way filter cartridge adopts new materials produced by Donaldson technology, filtration accuracy: 5um-10um, filtration resistance: ≤ 46pa, filtration efficiency: ≥ 99.99%; The filter cartridge is made into a folded cylindrical shape, and the filtering area of a standard filter cartridge is 15 ㎡, while the filtering area of the bag type dust collector of the same size is only 1 ㎡, which greatly reduces the volume of the dust collector; Using the pulse valve back blowing method, when the high-speed air flow through the venturi inducer induces the surrounding air several times the primary air (called secondary air) into the filter bag, causing instantaneous positive pressure in the filter bag to achieve the purpose of ash removal; The filter cartridge is manufactured according to the unified standard, and the high-speed connection is adopted, which makes the disassembly and assembly of the filter cartridge very convenient.
The electrical system is mainly composed of PLC and modules, contactors, thermal relays, level meters, sensors, etc. Jiutong adopts S7-200 programmable controller produced by Siemens in Germany for centralized control, which has fast processing speed, stable and reliable performance, and more convenient communication networking. All switches, power systems, motors, buttons, signal lights, and main switches of the electric control system are controlled and detected by the control cabinet, And realize automatic control (i.e. interlocking function); Two cooling fans are installed on the control cabinet, and overload protection and leakage protection are installed on the main circuit. When the circuit is short circuited or there is leakage, the power supply can be cut off in time.
The modular replacement of grille is
Explosion proof lamp, durable and
|Sandblasting clothes for healthy and efficient operation
|Rubber plate prolongs housing life
|Parameters / specifications
|Sandblasting room structure (wind)
|Model of sand blasting tank
|Single gun cleaning speed
|Treatment air volume
|Air pressure of sandblasting clothes
|Working temperature of sandblasting clothes
1.the dimensions of the equipment are for reference and can be designed and manufactured according to the dimensions of customers' products.
2.If you want to customize it, you can click this text