Vibrating screen intermediate cross beam, vibrating screen and asphalt mixing station

Abstract

The invention relates to a vibrating screen intermediate cross beam, a vibrating screen and an asphalt mixing station. The vibrating screen intermediate cross beam comprises cross beam rods which are hooked and connected with screen mesh hanging hooks of screen meshes and two end plates which are respectively arranged at the two ends of the cross beam rods; each screen mesh jacking device is arranged on one side, close to the corresponding screen mesh, between the two end plates; when the screen meshes are in a free state and the screen mesh hanging hooks are separated from the cross beam rods, the screen mesh jacking devices can jack the screen meshes so that the screen mesh hanging hooks and the cross beam rods are staggered in height to detach the screen meshes. According to the vibrating screen intermediate cross beam disclosed by the invention, the screen mesh hanging hooks are prevented from being hooked by the cross beam rods when the screen meshes are withdrawn, so that the screen meshes can be withdrawn smoothly to realize the convenience in detachment and replacement, and the replacement efficiency of the screen meshes is improved.

Description

technical field [0001] The invention relates to the technical field of vibrating screening, in particular to a vibrating screen middle beam, a vibrating screen and an asphalt mixing station. Background technique [0002] The asphalt mixing plant is a complete set of equipment that mixes mixtures of different particle sizes (coarse aggregate, fine aggregate and filler) and asphalt after heating and drying at a certain temperature into a uniform mixture according to the design ratio. It has been widely used in Infrastructure such as highways, urban roads, docks, and airports are under construction. [0003] As a key component of lean screening of bulk aggregate in asphalt mixing plant: vibrating screen, which is mainly composed of exciting dynamic system, exciting beam, side plate, middle beam, supporting beam, tension beam, screen and pull plate, etc. components. In order to produce aggregates of various particle sizes, the vibrating screen of the asphalt mixing plant has a...

AI Technical Summary

Problems solved by technology

The entire replacement process requires multiple disassembly and assembly of screens that do not need to be replaced, and the ambient temperature in the vibrating screen is relatively high (about 240°), and the dust is relatively large. Time-consuming, labor-intensive and low-efficiency seriously restrict the production progress of the asphalt mixing plant. At the same time, drilling into the vibrating screen body with large dust, high temperature, narrow space and inconvenient operation also seriously affects the health of the operators

[0005] As an improvement, the prior art CN205436287U designs the middle beam as a columnar structure (see attached figure 2 ), the upper and lower ends of the middle beam are designed to match the hooks of the screen and form a hook similar to the axial symmetry with the middle beam. Although this structure solves the cleaning caused by the aggregate blockage in the depression of the middle beam of the existing vibrating screen to a certain extent Difficulties and other problems, but the upper and lower hooks of the middle beam designed by this patent, especially the lower hooks, are easier to hook the screen hooks when the screen is replaced, and the screen replacement is difficult, which affects the efficiency of the screen replacement

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