The shot blasting machine, workpiece cleaned sand guarantee clean, no rust, scale, etc., so that the surface of metallic luster, and expose the casting surface defects, surface roughness requirements GB6060.5 provisions, in line with national GB8923- 88 Sa2.0-2.5 level, the blasting machine has the following advantages:? blast cleaning and shot blasting room layout have after a three-dimensional dynamic simulation to determine the projectile, no air throw phenomenon. ? Blasting using a large volume, high velocity projectile Direct centrifugal blast wheel, can significantly improve the cleaning efficiency, clean satisfactory quality. ? Continuous work to meet production requirements. ? Design compact, small footprint. ? Using cartridge-type blowing dust, dust removal efficiency of 99.9%. ? Can be equipped with a spray, spray paint and other production lines. Second, the main technical specifications 1, the largest single hook hoists: 100kg 2, cleanup workpiece size: φ100 × 1600mm 3, hook spacing: 900mm 4, Hook running speed: 0.8m / min ~ 1.6m / min 5, productivity : 50-100 hook / h 6, shot blasting: Model: Q034ZZ Quantity: 8 impeller diameter: φ420mm maximum shot volume: 8 × 200kg / h Motor power: 8 × 11kw 7, hoist: lifting capacity: 75t / h belt speed: 1.3m / s Motor power: 5.5kw 8, separator: the amount of separation: 75t / h Motor power: 3kw 9, screw conveyor: (1) transport capacity: 75t / h Motor power: 4kw 10, hanging chain rotation device: drive sprocket speed: 0.192 rpm / min 0.25 rpm / min rotation speed: 3.1 rpm / min 4.0 rpm / min 11, the projectile: projectile diameter: φ0.6-1.0mm first loaded amount: ≈5000kg 12, Total power: ≈95Kw 13, the ventilation rate: 20000 m3 / h chamber body: 17000m3 / h Separator: 3000 m3 / h 14, the chamber body Dimensions: 6420 × 2400 × 2800mm Third, the device type composition and structural characteristics of Q381 Shot machine is a catenary continuous shot blasting equipment, mainly by shot blasting chamber, sealed auxiliary chamber, blasting assembly, pellets circulation purification system, the workpiece rotation mechanism, dust control systems and other components (see program chart) . Most plate weldment this device have been thrown before welding peening improves rust resistance. 3.1 shot blasting chamber shot blasting chamber welded from steel and steel plate. 8 Shot assembly installed in a clean-room sidewalls, respectively, from the eight position ejections (see chamber body contour map), to ensure that the workpiece to be cleaned comprehensive blast cleaning (see Figure projectile). Shot through the arrangement of three-dimensional computer simulation of dynamic, all arranged angle position determination by computer design. In the care of all the work required to clean up on the basis of minimizing the projectile throwing empty, thus maximizing the utilization of the projectile, reduces the need for clean-indoor fenders wear. Shot chamber body laying there manganese steel shield, the shield of versatility, interchangeability, and long wear life. Installation fenders using modular structure. Fixed guards are cast using a special package large nut, convenient and durable, and maintenance. The top of the cleaning chamber seal openings with labyrinth seals and multi-channel rubber seal curtain, nylon filament (Switzerland + GF + technical), compact structure, easy to replace, to put an end to the projectile bounce chamber in vitro. Using multi-level labyrinth seal way: the first level with a wear-resistant polyurethane sheeting, Y-shaped labyrinth structure, second, third grade with high strength, high elasticity, high wear-resistant rubber sheet, using the V-type structure fourth grade silky soft nylon brush Le Fur adopt "a" word structure. Front and rear auxiliary chamber shot blasting chamber sealed chamber attached to the steel plate, steel welded structure. They clean up the room with the formation of large workpieces together to clean up space. Auxiliary indoor wall with high wear-resistant elastic rubber shield for protection, all shields are ideal can be easily replaced, seal the projectile effect, no projectile flying. Attached to the upper chamber also has a dust port, dust removal system where the entire device through ventilation and dust. 3.2 Shot blasting assembly by blasting assembly, motor and other components. Shot blasting machine blasting a total of eight, the use of my company's Q034ZZ cantilever centrifugal efficient two-way dual-striking surface directly connected Blasting (Switzerland + GF + · DISA blasting technology company). In China, this blasting machine for my company's proprietary technology, and entirely manufactured by our company. It has the following advantages:? Efficient: A special sub-pill round structure, blasting efficiency can reach 16kg / min · kw. ? Vane assembly and disassembly quickly:? Because this blasting from the center of the impeller blades are inserted in the course of rotation of the impeller by centrifugal force fixed blade, so without any clamping tools, when removing the blade, just tap the outer end of the blade can easily remove the blade. Removing eight blades, only 5 to 10 minutes and can also check for wear and oriented sub-pill round sets. ? On a fixed shaft and housing bore directional sets are disposable processing,? Thereby enabling directional gap between the sleeve and sub-pill round of uniform? Not only reduces wear and tear on the projectile points pill round and will be directed sets seizing phenomenon, but also greatly enhance the efficiency of blasting. ? 8 Shot impeller fixed on the body? Geometric tolerance precision blades long grooves and holes are fairly strict, I am using imported special processing center, will be able to indexing a fixture on the impeller roughing ─ ─ precision milling, drilling indexing ─ ─ ─ reaming reaming process once completed, to ensure that the operation of the blast wheel balance, counterbalance it ranged from 12 ~ 15N · mm (National Standards 18.6N · mm) between, while significantly reducing equipment noise. ? The Blasting the blade, sub-pill round, orientation set by the Swiss + GF + · DISA company LFC production process, casting made of high chromium wear-resistant materials, so that leaves the weight difference is controlled within 2 grams of long life . ? Appearance, simple structure, easy to manufacture and maintenance and low noise. ? Installed on Blasting limited bit devices: When you open shot blasting cap maintenance, to ensure that equipment does not start, so as to protect the safety of maintenance personnel. 3.3 pellets pellets circulation loop purification system purification system can be divided into separate circulation systems and pellets purification system, by the screw conveyor, bucket elevator, pill sand separator, pneumatic valve for the pill, lose pill pipe and other components. Screw conveyor screw conveyor by cycloid reducer, helical axis, transport cover, bearings and other components. The part I have realized serialization, versatility, interchangeability, stable and reliable performance, the whole helix axis With overall welding process, thus ensuring the concentricity of the two ends of the screw shaft. The bottom of the hopper screw conveyor collected projectile transported to the bucket elevator. This unit is an important part of the circulatory system of the projectile device, spiral blade using 16Mn material, both inside and outside the circle were processed by a special process stretching, pitch, outer dimensions are very precise and improve the spiral of life and reduce the operating noise. Bucket elevator bucket elevator by cycloid reducer, upper and lower rollers, conveyor belt, hopper, barrel and closed up tight devices and other components. Bucket elevator feed inlet and screw conveyor connected to its discharge port is connected with the separation. Hoist casing using bending shape welded structure. Hoist casing has access door on the maintenance and replacement can upgrade hopper. Open the next door on the front cover, the lower part of the drive can be repaired, remove the bottom of the projectile blocked. The machine uses flat belt rotation. When the work is fixed in the hopper conveyor belt on the bottom of the elevator blowing pellets, and then hoist machine driven by the pellets to the top of the elevator, and finally by way of centrifugal gravity blanking, the pellets input pill sand separator. In order to ensure the work conveyor belt is not slipping into a squirrel cage roller is made, so that not only improves the lifting force of friction between the belt and pulley, avoiding the old-fashioned light pulley slipping, but also reduces the lifting belt preload, extending the lifting belt life. In order to avoid instability caused by the lower hoist system blockage in the lower part of the hopper by a belt made arc-shaped trajectory. Enhance the amount set aside 10 percent margin. Because the pill sand mixture hoist at work by centrifugal gravity unloading way to lift separator, due pill sand mixture of particles of different sizes, ranging from quality, and thus each hoist blanking time, always Some pill sand mixture and then down to the elevator, and increased the amount of material hoist need to upgrade, and thus appropriate to increase the amount of lift hoist, hoist can effectively avoid overload caused by equipment parking (as shown above shown). Pill sand separator using advanced three full-screen curtain flow automatically adjust hammer type pill residue separation is introduced by the company in Switzerland + GF + DISA technology production. Separator It consists of two parts trommel winnowing system components (see figure). Trommel (pictured above) from the inner spiral blade ①, outer spiral blade ②, sieve ③, the support shaft and transmission parts ④, ⑤ and housing ⑥ access door: the winnowing system is a gravity sand barrier plate ①, guide flow plate ②, a write-Plates ③, two-handed filter plate ④, suction outlet ⑤, housing ⑥, screen ⑦, wear plate ⑧, pill storage hopper and air flow control valve ⑨ ⑩ components. Slag mixture principle pill splitter work provided by the bucket elevator to a separator drum sieve, drum sieve cloth inside and outside the helical blade, spiral blades within the chunk of debris through the slag discharge port, sieved pellets , sand and dust mixture through sieve drum outer spiral blade and augers push it along the separator uniform fabrics, and the formation of flow curtain, by adjusting the position of the hammer, you can ensure that the entire separator to form a full-length curtain so pills can be fully separated from the slag. Pill slag mixture during descent, by the horizontal thrust stream of particles, thereby forming a curved trajectory deflection, due to differences in specific gravity and particle size of the particles, which vary the degree of deflection, so that slag pellets can be separated, dust is inhaled dust purification treatment, crushed pills, sand, scale, etc. into the waste storage bucket, and some small pieces of debris projectile passing through the sieve into the reservoir for recycling bucket pill again. Projectile distribution system developed independently by our company, access to national patent gas control valve projectile, which is a stroke of cylinder control rely on long-distance shot blasting conduct remote control device, which avoids the common projectile control valve is not closed because caused severe motor burned, shot clogged, air projectile throwing and wounding phenomenon, reached the international advanced level of the nineties. Projectile adjustment bolt on the controller, you can get the required amount of blasting. 3.4 dedusting system uses gravity cyclone dust + + HL-18 cartridge filter dust vertical way. Waste gas generated during the work, the dust after treatment, the high-altitude emissions. Removal efficiency reached 99.9%? Above, the dust emission ≤100mg / m3, in line with GB16297-1996 national emission standards. Filter cartridge filter using microporous membrane filter imported. Composite microporous film, on the one hand to improve filtering accuracy, on the other hand is conducive to remove dust adhering to the cartridge, the cartridge can be easily disassembled to replace. Cartridge lifespan 1-2 years. Set a large cyclone body, the realization of the coarse dust filter, effectively avoid the impact of large particles of dust cartridge filter can improve the life of the cartridge to improve the effect of dust. Vertical cartridge filter, only low concentrations of emissions, but also extremely easy maintenance and replacement, single person can operate. Because of its unique filter cartridge filter element multi-fold structure, a single cartridge filter area greatly increase over the bag, the bag filter to reduce its footprint than 60%; its cell structure to make production, installation, transportation and so much more convenient and simple; special cartridge installation and sealing method allows a single person to repair and replacement, compared with baghouse greatly simplified. 3.5 Control System gas control system gas control system consists of air preparation components and valves and pneumatic actuator components, in order to ensure reliable operation of the equipment, valves and other brand-name manufacturers are supplied.