The Double-layer framework of Jiutong machinery 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.

Belt conveyor

It is composed of reducer motor, conveyor belt, drive roll, tension roll, idler and other devices, and has the advantages of simple structure, wear resistance, stability and reliability, small maintenance, flexible installation, strong versatility, large conveying capacity and so on.

Abrasive bucket elevator

The hopper fixed on the belt is used to convey powder, granular and small pieces of bulk materials upward, which is composed of cycloid needle wheel reducer, upper and lower rollers, conveying belt, hopper, closed material barrel and tensioning device. The nine way adopts cycloid needle wheel reducer with motor, which is convenient for installation and simple in structure; In order to ensure that the conveyor belt does not slip during operation, the roller is made into a squirrel cage type to improve the friction between the lifting belt and the pulley, avoid slipping, reduce the preload of the lifting belt and prolong the service life; It is equipped with a set of tensioning device, and the anti rotation structure can effectively prevent the lifting belt from rotating, so as to avoid injury to operators.

Abrasive vibration separation and screening machine

The abrasive rotary vibration screening machine is specially used for accurately screening and separating sandblasting abrasives. It can finely screen and separate abrasives or shot materials of various types and arbitrary particle sizes, control the abrasive particle size arbitrarily, and ensure that the abrasive particle size recycled is completely uniform, so as to ensure high-precision sandblasting quality and efficiency, and save abrasives. Through secondary screening, foreign matters, debris impurities, unqualified abrasives, broken fine abrasives and fine debris are separated, and only good Abrasives required by the process are recycled back to the spray gun.

The full curtain separator, produced by Jiutong with Swiss +gf+. Disa technology, consists of sorting area, conveying screw, shot bin, shot control gate, photoelectric automatic detection device, etc. The shot sand mixture flowing from the bucket elevator is roughly distributed along the whole length of the separator by the screw conveyor. It repeats in turn to form a waterfall shaped shot sand flow curtain. The disadvantages of uneven distribution of large flow separator and incomplete separation of projectile are completely solved. The curtain separator structure with heavy hammer adjustment is eliminated. Full curtain sand flow, using the principle of gravity air separation, effectively separates the pellets in the flow curtain from metal oxide skin fragments, broken pellets and dust. Large particle waste flows out of the overflow port of the separator, small pellets and dust flow out of the waste outlet, and the pellets enter the pellet silo for circulation. The separation efficiency of the separator can reach more than 99.5%. When a large shot enters the spiral screen or is stuck due to mechanical reasons, the photoelectric rotation device monitors it, automatically feeds back the signal to the PLC control system, alarms and stops automatically, and protects it, which can effectively avoid damage to other parts due to mechanical failure, thereby reducing unnecessary losses.

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 connected at high speed, which makes the disassembly and assembly of the filter cartridge very convenient

The electrical control system of the mechanical recovery sandblasting room is mainly composed of PLC and modules, contactors, thermal relays, material 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 network. All switches, power systems, motors, buttons, signal lights, and main switches of the electrical 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.