An eccentric block type asphalt old material screening machine

Abstract

The invention discloses an eccentric block type asphalt old material screening machine, which comprises an extension structure. The right part of the extension structure is connected with a feed pipe, and the feed pipe is embedded and installed inside the screening base; the left eccentric block is arranged on the feed pipe. The left end; the right eccentric block is set at the right end of the feeding pipe; the filter screen is installed inside the screening base, and the filter screen is set at the bottom of the screening base through the connecting plate; the discharge chute is set at the lower right of the feeding tube through the support frame , feed the old asphalt mixture to be screened into the extension structure through the feed hopper, start the transport motor to vibrate the old asphalt mixture into the feeding pipe through the transmission cylinder, and pass through the left eccentric block and right eccentric block The asphalt old material mixture is screened with the vibration adjustment feeding pipe. After the asphalt old material mixture is screened through the screening plate and the filter screen, the remaining asphalt is transported out. The invention facilitates the screening of impurities in the asphalt old material , and at the same time improve the screening efficiency and screening fineness of old asphalt materials to ensure stable screening performance.

Description

technical field [0001] The invention relates to the related technical field of asphalt old material screening machines, in particular to an eccentric block type asphalt old material screening machine. Background technique [0002] The process in which the broken material is divided into different particle sizes through one or several layers of sieve surface is called sieving. The screening machine is a vibrating screening mechanical equipment that uses the relative movement between the bulk material and the screen surface to make some particles pass through the screen holes, and divide sand, gravel, crushed stone and other materials into different grades according to the particle size. The screening process of the sieving machine is generally continuous. After the sieving raw materials are fed to the screening machine (referred to as the sieve), the material smaller than the sieve size passes through the sieve hole, which is called the under-sieve product; the material large...

AI Technical Summary

Problems solved by technology

[0004] At present, the commonly used screening methods for recycled materials adopt linear vibration, circular vibration and circular roller screening technology. Due to the viscosity characteristics of asphalt recycled materials, the previous screening technology for recycled materials has the following problems: the general screening machines on the market cannot meet the requirements of 5mm. Screening requirements, the current maximum screening specification is 10mm

This greatly reduces the economic value of recycled asphalt materials; the current general-purpose screening technology has the disadvantages of low output, easy blockage of the screen, and inconvenient cleaning.

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