Novel rotary sealing valve

Abstract

The invention relates to a novel rotary sealing valve which comprises a valve body and a star-shaped rotor assembly, wherein the star-shaped rotor assembly comprises a star-shaped rotor, a rotor lining plate I and a rotor lining plate II; the star-shaped rotor is provided with a keel and a baffle which is star-shaped and arranged on the keel; a heightening plate is arranged at one end corresponding to the valve body of the baffle and arranged on the rear side of the rotation direction of the baffle; the heightening plate is arranged between the baffle and the rotor lining plate I; an L-shaped adjusting blade is also formed in one end corresponding to the valve body of the baffle; the L-shaped adjusting blade comprises a blade sealing plate and a blade installing plate which are arranged in an L-shape; and the blade installing plate, the baffle and the heightening plate are fixedly connected through connecting pieces. According to the technical scheme, the novel rotary sealing valve has the technical effects as follows: the blocking rate of materials is reduced; abrasion caused by rotation and extrusion is avoided; the fault rate is reduced; the use cost is reduced; the operation rate of the device is guaranteed; the service life is prolonged; and the novel rotary sealing valve is convenient to maintain.

Description

technical field [0001] The invention relates to a material discharge device which not only needs to discharge mineral materials and block materials but also needs sealing effect, and particularly relates to a new type of rotary sealing valve of a dry quenching and sintering discharge device. Background technique [0002] The existing CDQ rotary sealing rotary valve, such as the technical solution disclosed in the patent document with the publication number CN202156737U, has a star-shaped rotor using a straight plate type partition, and the blade is a single-plate structure. Since the blade and the thickened plate are set In front of the rotation direction of the star-shaped rotor, there is a straight wear-resistant plate behind it. Since the height of the three plates is uneven during production, it is very easy to cause small particles to stay on the end surfaces of the three plates when feeding. , when the star-shaped rotor rotates, it enters the valve body, causing small ...

AI Technical Summary

Problems solved by technology

[0002] The existing CDQ rotary sealing rotary valve, such as the technical solution disclosed in the patent document with the publication number CN202156737U, has a star-shaped rotor using a straight plate type partition, and the blade is a single-plate structure. Since the blade and the thickened plate are set In front of the rotation direction of the star-shaped rotor, there is a straight wear-resistant plate behind it. Since the height of the three plates is uneven during production, it is very easy to cause small particles to stay on the end surfaces of the three plates when feeding. , when the star-shaped rotor rotates, it enters the valve body, causing small particles to squeeze and wear. In addition, the material rolls in the star-shaped rotor with the rotation of the rotor, especially when it is close to the discharge port, its small particles are very easy. into the gap between the rotor and the valve body to cause extrusion wear; the bearing is directly arranged on the end cover plate of the valve body, so that the bearing directly contacts the medium in the sealing cavity of the valve body, due to the dust, Small particles enter the sealing cavity with the pressure wind and cause serious impact on the use of the bearing. Therefore, in order to prevent small particles from entering the cavity of the valve body, a sealing device is provided between the star rotor and the end face of the valve body, and grease lubrication is required at the same time. And add a sealing air to seal to prevent dust from entering the sealing cavity of the valve body, which makes the failure rate higher and cannot ensure the operation rate of the equipment

Images