Anti-blocking star type cinder valve

Abstract

The invention discloses an anti-blocking star type cinder valve. The anti-blocking star type cinder valve comprises a shell and an impeller shaft, wherein the upper end and the lower end of the shell are provided with a feed port and a discharge port respectively, and the impeller shaft is arranged inside the shell and driven by a drive device to rotate. An impeller is fixedly arranged on the impeller shaft in a sleeved mode, and blades of the impeller deviate from the axis of a hub by an angle. The two radial sides, corresponding to the axis of the impeller hub, of the inner wall of the shell are provided with two baffles respectively, one side of each baffle is hinged to the inner wall of the shell, the two baffles are connected with one ends of two pre-tightening springs respectively, the other ends of the two pre-tightening springs are connected with the inner wall of the shell, and when the blades of the impeller rotate to the position corresponding to the baffles, gaps are reserved between the other sides of the baffles and the front edges of the blades of the impeller. According to the anti-blocking star type cinder valve, the shearing force can be reduced, and the blocking accident can be effectively prevented.

Description

technical field [0001] The invention relates to a dust removal and ash conveying device, in particular to an anti-clogging star-shaped ash unloading valve. Background technique [0002] The star-shaped ash unloading valve mainly relies on the gravity of the material and the compulsory action of the working mechanism of the feeder to discharge the material in the bin and feed it to the next device continuously and evenly. Star dust discharge valve is mainly composed of motor, reducer, shell, impeller, main shaft, bearings, left and right end covers. One of the indispensable equipment for solid conveying equipment. The edge of the blade on the impeller of the conventional star-shaped ash unloading valve is parallel to the axis of the impeller. The falling process of the material is carried out simultaneously with the rotation of the impeller, and the impeller and the casing will have a shearing effect on the material, especially when the material is mixed with floc. This phe...

AI Technical Summary

Problems solved by technology

The edge of the blade on the impeller of the conventional star-shaped ash unloading valve is parallel to the axis of the impeller. The falling process of the material is carried out simultaneously with the rotation of the impeller, and the impeller and the casing will have a shearing effect on the material, especially when the material is mixed with floc. This phenomenon is especially obvious when it comes to velvet or velvet materials. The cutting method is linear shearing, and the shearing force is relatively large, so there will be a muffled sound of "bang bang" when the machine is running. In severe cases, the unloader will be blocked. The situation is usually to increase the power of the motor to complete the forced shearing, which will aggravate the wear of the impeller blades, and if the shell is opened for cleaning, it will seriously affect the work efficiency

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