Sand drying storage system, operation method thereof and dry and mixed mortar batching plant

Abstract

The invention provides a sand drying storage system, an operation method thereof and a dry and mixed mortar batching plant. The sand drying storage system comprises a drying device (10), a first screening plant (20), a first hoisting plant (30), a second screening plant (40), a storage bin (50) and a secondary sand making system (60), the first screening plant (20) is arranged at a discharge end of the drying device (10), the first hoisting plant (30) is arranged at a discharge end of the first screening plant (20), the second screening plant (40) is disposed at a discharge end of the first hoisting plant (30), the storage bin (50) is arranged at a discharge end of the second screening plant (40), and the secondary sand making system (60) is connected to the discharge end of the first screening plant (20) and can secondarily process dry sand outputted by the first screening plant (20). By the aid of the sand drying storage system, a sand silo can be effectively prevented from being excessively filled with sand, production cost is lowered, production efficiency is improved, and resources are more reasonably utilized.

Description

technical field [0001] The invention relates to the field of dry-mixed mortar preparation and storage machinery, in particular to a sand drying and storage system, an operation method thereof, and a dry-mixed mortar mixing station. Background technique [0002] At present, the dry-mixed mortar raw material sand drying storage system adopts such as figure 1 In the device shown, wet sand, the raw material of dry-mixed mortar, is transported to the three-pass drying cylinder 10' through the wet sand bucket elevator, and becomes dry sand after passing through the three-pass drying cylinder 10', and the dry sand passes through the linear vibrating screen 20'. The sand larger than 5mm is screened out, and the sand smaller than 5mm is lifted to the probability sieve 40' on the top of the sand silo 50' through the dry sand bucket elevator 30', and is screened into 0-2.5mm particle size and 2.5mm particle size by the probability sieve 40'. Two kinds of sand with particle size of mm-...

AI Technical Summary

Problems solved by technology

[0003] In this system, the sand silo storing 2.5mm-5mm particle size is easy to explode

The reasons are as follows: in the general raw material sand, sand with a particle size of 0-2.5mm accounts for about 60%, and sand with a particle size of 2.5mm-5mm accounts for about 40%. According to the demand for dry-mixed mortar, the demand for ordinary dry-mixed mortar is large, accounting for the entire dry-mixed mortar. The mixed mortar is about 80%, so the dry-mixed mortar mixing station mainly produces ordinary dry-mixed mortar. Among ordinary dry-mixed mortars, there are masonry mortar, plastering mortar, and ground mortar. Among them, sand with a particle size of less than 5mm for masonry and ground mortar can be used. However, plastering mortar can only use sand with a particle size of 2.5mm or less, and the amount of plastering mortar is the largest. If only plastering mortar is produced within a certain period of time, it will result in storage of sand cylinders with a particle size of 2.5mm-5mm Warehouse Explosion

After the sand silo with a particle size of 2.5mm-5mm explodes, it needs to be released into the storage yard or a closed storage object, and the sand will be transported again when necessary, which will consume logistics turnover costs and energy in the middle, and will take up more In many places, it is difficult to control the dust during this process, which is likely to cause environmental pollution and seriously affect the normal production work of customers

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