Full cloth curtain shot sand separating system

Abstract

The invention discloses a full cloth curtain shot sand separating system. The full cloth curtain shot sand separating system comprises a shot material feeding longitudinal screw conveyer, a separating area, a separating area transverse screw conveyer, an air inlet, an air suction port, a hopper bin and a shot controller, wherein a discharge portion of the shot material feeding longitudinal screw conveyer is connected with the separating area transverse screw conveyer; the separating area is arranged in front of the air suction port; the separating area transverse screw conveyer is completely arranged at the separating area, and a feed port of the separating area transverse screw conveyer is connected with the shot material feeding longitudinal screw conveyer; the air inlet is formed directly in front of the separating area, and the air direction of the air inlet is vertical to the conveying direction of the screw conveyer; the air suction port is arranged at the back of the separating area, the air direction of the air suction port is vertical to the conveying direction of the screw conveyer and corresponds to the air inlet, and the air suction port is connected with dust removal equipment; the hopper bin is connected below the separating area; the shot controller is arranged at the bottom of the hopper bin. According to the system, enables shot sand mixture is subjected to full cloth curtain arrangement at the separating area in the separator, and the separating effect is good.

Description

technical field [0001] The invention relates to a shot blasting equipment, in particular to a shot blasting separation system covered with curtains. Background technique [0002] Shot blasting machine is a shot blasting equipment that uses high-speed projectiles thrown by a shot blaster to clean or strengthen the surface of castings. The shot blasting machine can shake out sand, remove core and clean the casting at the same time. [0003] Shot blasting equipment is firstly used to remove sand and scale on the surface of cast steel and iron castings in the foundry industry. Almost all steel castings, gray castings, malleable steel parts, ductile iron parts, etc. must be shot blasted. This is not only to remove scale and sticky sand on the surface of the casting, but also an indispensable preparation process before the quality inspection of the casting. For example, the casing of a large gas turbine must be subjected to strict shot blasting before non-destructive testing to ...

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Problems solved by technology

[0005] (1) More than 70% of the shot-sand mixture is separated from one side of the separation area, which cannot fully separate the shot-sand mixture that needs to be separated in the shot blasting machine, and the separation effect is not good. After separation, the sand content in the pure qualified steel shot >10%, qualified projectile rate in waste >10%, separation efficiency <90%;

[0006] (2) It is impossible to balance the circulating shot material of the left and right shot bins of the separation system. Long-term use will cause one shot bin to overflow the shot material, and the other shot bin to have no shot material, resulting in the failure of the shot blasting machine to work normally;

[0007] (3) When the mixture of shot and sand in the circulation system cannot be fully separated, it will cause accelerated wear of the vulnerable parts such as blades and directional sleeves in the shot blaster, and the surface treatment quality of the workpiece cannot reach the standard Sa2.5 level, which seriously curbs the easy The service life of damaged parts and the treatment effect of workpieces

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