Dry-method sand making production line and method

Abstract

The invention discloses a dry-method sand making production line and method. The dry-method sand making production line comprises a jaw crusher, a vibration conveying device, a sand making machine anda multi-stage vibrating screen, wherein a discharge port of the jaw crusher is connected to a feeding hopper of the vibration conveying device; a belt conveyor is used for feeding wet broken stones into the sand making machine; the sand making machine is used for finely crushing the broken stones; a discharge port of the sand making machine is located above the multi-stage vibrating screen; and the finely crushed broken stones are graded by the multi-stage vibrating screen. A special vibration conveying device, that is, the vibration conveying device is designed for the dry-method sand makingproduction line and can adjust the pose of the broken stones on the one hand, and sprays water onto the broken stones on the other hand, thereby reducing the mud content of the material entering thesand making machine, increasing the humidity of the material entering the sand making machine, greatly reducing dust generated by the sand making machine when the broken stones are crushed in the sandmaking machine, and improving the quality of machine-made sand.

Description

technical field [0001] The invention relates to a dry sand making production line and method, belonging to the construction field. Background technique [0002] Since the dry sand making production line does not require water in the production and processing process, it saves work links, does not discharge sewage and sludge, does not cause pollution to the environment, ecology, water flow, etc., has a good environmental protection effect, and at the same time, the investment cost is low. It has high popularity in the industry. [0003] However, when the dry sand making production line in the prior art is in use, a large amount of dust is generated especially in the process links such as crushing and vibrating screening. If the dust is processed through a dust collector, a high-power dust collector is required, and when the workers are working When working in close quarters, it will still be affected by dust. [0004] Moreover, the dry sand making machine also has clear req...

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Problems solved by technology

[0003] However, when the dry sand making production line in the prior art is in use, a large amount of dust is generated especially in the process links such as crushing and vibrating screening. If the dust is processed by a dust collector, a high-power dust collector is required, and when the workers are working When working at close range, it will still be affected by dust

[0004] Moreover, the dry sand making machine also has clear requirements on the mud content of the raw materials. If the mud content of the raw materials is too high, the quality of the final machine-made sand cannot be guaranteed.

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