The shot blasting machine is mainly used for marble, simple components, surface cleaning small castings by blast cleaning to remove surface rust, dirt, scale, sand casting, so that the workpiece play rust, decontamination, strengthening the role of sand to improve the fatigue strength of the workpiece, and ultimately to improve the surface and internal quality. This machine is marble, ships, vehicles, containers and other manufacturing industries the necessary equipment. ? Second, the main technical parameters of the workpiece 2.1 Specification: ?? clean-room door dimensions: width 1200 mm, height 300 mm 2.2 conveyor roller: roller Maximum load: ???????? 1 t / m Conveyor speed: ???????????? 0.5 ~ 5.0 m / min (stepless) processing workpiece speed: ???????? 1.0 ~ 3.5 m / min 2.3 ?? Blasting: Model : ???????????????? number Q034: ???????????????? 4 motor power: ????????? ??? × 4 2.4 ?? 7.5 kW vertical screw conveyor bottom: (1 station) transport capacity: ???????????? 30 t / h Power: ????????? ????? 5.5 kW 2.5 ?? bucket elevator Model: ?????????????? D300 lift capacity: ???????????? 30 t / h Hopper running speed: ???????? 1.25 m / s drives: ???????????? BWD2-17-4 lifting roller output speed: ???? 62 r / min Power: ?????????????? 4 kW 2.6 pill sand separator separating capacity: ???????????? 30 t / h wind speed separation zone: ???? ?????? 4-5 m / s ventilation: ?????????????? 4500 m3 / h drive: ???????????? BWD2- 23-2.2 power: ?????????????? 2.2 Kw 2.7 ???? cleaning system fan power cleaning brush motor power ?????????? 3KW ???? ?????????? 1.5KW 2.8 ?? Cleaning System ventilation: ?????????? ??? 16500 m3 / h main fan Model: ????????? ? 4-72No6C-15 kW motor power ?????????? 0.75KWX2 rapping ESP Model: ?????????? BD-96 bag type dust filtration velocity: ??? ????????? 0.5 ~ 1.2 m / min 2.9 ?????????????? full engine power by about 65 kW 2.10 workpiece surface quality after shot blasting machine: Sa2 .5 grade ?? GB8923-88 2.11 dust emission concentration ?????????? ≤90 mg / m3 three, working principle and structural features ?? The equipment includes:? workpiece conveyor roller, shot blasting room, screw conveyor, bucket elevator, pellets splitter, shot blasting, pellets control valves, pipeline transport pill, pill clearing systems, platforms and railings, dedusting systems, electronic control systems. 2.1 workpiece conveyor roller: by the feed roller, roller Blasting Room, sending roller formed. Its characteristics; roller motor uses a three-part gear drive, making the full range of roller run synchronously; workpiece rollers running smoothly; workpiece rollers deviation of less than 50mm; to maintain a certain distance from the front and rear of the workpiece. 2.1.1 feed rollers: input and output roller rollers are made of high quality carbon steel seamless and welded quenched shaft head shape. Overall and mounting dimensions weld metal processing, which is to ensure concentricity, but also to ensure the smooth delivery of indoor roller 2.1.2 Shot: Shot indoor roller length of 1200 mm, the main chamber body roll roller ordinary formal structure of cast iron coat. 2.1.3 Send track: its structure with the same feed roller. 2.2 Cleanup Room: shot blasting area, consists of several parts before the auxiliary chamber, shot blasting chamber, pellets cleaning chamber and other components. Cleaning chamber ends of import and export wide 1000 mm, height 600 mm; ?????????????????????????????????? ?????????????????????????????????????????????????? ???????????????????????? 1) shot blasting machine for the main room with installation of four angled ejection port, the projectile inside the mouth and Shot the top of the room, four side, set the pill was fitted to the side wall of the bucket of special high-chromium alloy shield, to protect the wall. 2) room with steel casing, which designed and manufactured in line with China? Steel design codes? Requirements. 3) access door to clean room is located, to ensure a smooth operator maintenance, access doors seal tightly to ensure that no projectile and dust leakage. 2.3 Blasting: This Q034Ⅰ type shot blasting equipment selection, installation 4 Shot in the chamber body, in order to meet the requirements of the workpiece. Shot is a key component of the machine, which consists of the impeller blades, sub-pill round, orientation kits, inlet pipe, shield, shields, motors and other components. Projectile by introducing pipe into sub-pill round, after the pre-acceleration is oriented looper thrown by the blades continue to accelerate its high-speed projectile reaches the surface and then make a strong blow to achieve the purpose of cleaning up. This device has the following advantages Shot: a) Efficient: A special sub-pill round structure, blasting ratio could reach 17.5kg / min.Kw. b) blade assembly and disassembly quickly: Because this Blasting blades are inserted into the center of the impeller, the impeller rotates in the process by the centrifugal force of the fixed blade, so the tool does not require any setup. When removing the blade, just the sub-pill round apart, and then tap the outer end of the blade can easily remove the blade from the impeller center. Removing eight blades, only 5 to 10 minutes, and can also check for wear and oriented sub-pill round sets. c) double disc impeller, good stability, blasting uniform. d) The Blasting the blade, sub-pill round, orientation sets, using special high chromium cast iron material, so that leaves the weight difference within 5 grams, significantly reducing noise blasting runtime (less than 85dB ), extending the life of wearing parts. e) appearance, delicate structure, manufacture and maintenance will be. After blasting the surface quality of the workpiece reached meet common standards for visual and magnetic particle testing. Vertical screw conveyor is equipped with a 2.4 projectile circulatory system, bucket elevators, separators and other rigorous calculation and testing, have coordinated transmission capacity. Pill sand curtain scene (photo) separator work 2.4.1 native fighting machine for flat belt drive hanging bucket, shell shaped welding for pill pill dust mixture bottom transverse flow tube upgrade sent to the machine top. Hoist capstan pulley using a large external surface of vulcanized rubber skin plus structure, increasing friction, the next round of the use of squirrel-cage sand, non-slip, anti-bias, tape drive running smoothly, reliably, effectively extending the life of the belt. Hoist lift bucket are used welded steel production, compared with the original cast iron pieces, with light weight, long life characteristics. 2.4.2 The machine adopts advanced full curtain BE type separator. Separator consists of sub-district, screw conveyors, silos pill, manual projectile control gate and other components. The separator for my company to absorb Switzerland E FISCHER DISA (GIFA) and the United States Pangborn Technology Development Company, is the company's latest splitter. Splitter is one of the key components of the equipment, its design directly affects the size of the constituency divided into separator separation, if the separation is not good, will enable the accelerated wear of blasting blades, reducing its service life, increased maintenance costs . Separator works: enhance the inflow from the bucket of balls sand mixture, by a screw conveyor to divide constituency cloth upper, while the cloth screw it evenly along the full length of cloth separator formed as a pill sand flow waterfall curtain. Meanwhile, dust blower through the separator outlet ventilation, using gravity winnowing principle, the stream of projectiles and metal curtain scale fragments, broken projectile, effective separation of dust, after the separation of the projectile fell into the silo, the next step cycle. Vertical and horizontal adjustment of the adjustment slot baffle separator between the height and the track can be improved fabric layer, with the adjustment of the deflector separation zone, can get a good separation, the separation efficiency can be up to 99%. 2.4.3 projectile distribution system developed independently by our company projectile through the cylinder valve control pills to an apparatus for remote control, which avoids the motor control valve due to ordinary projectile caused due to the closure lax burned, shot clogged, air projectile throwing and wounding phenomenon, reached the international advanced level in the nineties. Projectile adjustment bolt on the controller, you can get the required amount of blasting. 2.4.4 the lower longitudinal and transverse screw conveyor to clean up the lower part of the upper chambers were equipped with vertical and horizontal screw conveyor screw conveyor section, pill dust mixture can improve the bottom of the machine to collect import by Lifting the sub-feed conveyor. They slow down the cycloid and screw shaft, housing, bearings components. ?? The company has achieved part series, 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. 3, ventilation and dust removal system: dust removal system, including between the dust collector, fan, fan duct, dust and a host connecting pipes, fans and so on. Uses 1 ZC96 mechanical rapping bag type dust collector, dust removal efficiency of more than 99%, emissions ≤110mg / m3, in line with GBJ4-73 industrial "three wastes" emissions standards, the use of industrial dust bag Polyester 208 Precision flannel sewn , the bag can be easily removed for cleaning before use. Selected by calculating the amount of ventilation equipment to ensure dust-free operation of spillovers, job site dust concentration <5mg / m3, dust emission concentration is less than 120 mg / m3, dust removal efficiency of 99.5%, in line with standard GB16297-1996 standard. Electrical Control System 2.6: 1, the machine uses a manual control, the main electrical components Zhejiang Chint brand. 2, the machine has a cabinet; 3, roller frequency control, and positive and negative runs; 4, the control system has a device to prevent misuse, and with an emergency stop button;?