Raw material screening device for concrete production and processing

Abstract

The invention provides a raw material screening device for concrete production and processing. The raw material screening device comprises a fixed cylinder, and multiple dust collecting assemblies capable of collecting dust are embedded in the inner wall of the longitudinal side of the fixed cylinder in the up-down vertical direction in an equally adjacent manner in a surrounding manner; each dust collecting assembly comprises a dust collecting groove, a dust guide plate, a dust closing assembly capable of closing collected dust to prevent the collected dust from flying outwards and a dust insulation assembly capable of humidifying the collected dust to isolate the collected dust; the dust collecting grooves are embedded in the inner wall of the longitudinal side of the fixed cylinder in the up-down vertical direction in an equally adjacent manner in a surrounding manner; the dust guide plates are fixedly mounted at the positions between the front and rear inner walls of the upper ends in the dust collecting grooves; and the dust closing assemblies are movably mounted at the positions of the lower ends in the dust collecting grooves. According to the raw material screening device for concrete production and processing, the functions that a dust collecting function is achieved in the fixed cylinder, when raw materials are screened through a screening cylinder and spiral blades, dust is not prone to being blown out of a discharging pipe, dust diffusion is prevented, and the operation environment is improved can be achieved.

Description

technical field [0001] The invention relates to the technical field of concrete processing equipment, and more specifically, relates to a raw material screening device for concrete production and processing. Background technique [0002] In the prior art, during the operation process of screening concrete raw materials by using vibrating sieve plates or rotating sieve drums, the screen holes are often blocked due to the large amount of sand and gravel, resulting in poor actual screening effect. [0003] In view of the above problems, regarding the technical problems such as the poor screening effect of the concrete raw material screening device, after a large number of searches, a concrete raw material screening device with the patent number CN201922296672.2 was found, including a fixed cylinder, a fixed cylinder The inner wall is rotatably connected with a screening cylinder that penetrates up and down, and the top of the outer wall of the screening cylinder is connected wi...

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Problems solved by technology

[0004] However, the technical solution provided by this patent does not have the dust collection function in the fixed cylinder. When the screening cylinder and the spiral blades screen the

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