A kind of multistage quartz sand sorting method

Abstract

The invention relates to the technical field of quartz sand processing, and discloses a multi-stage quartz sand sorting method, step A, preparing equipment, preparing a sorting box, and installing a partition in the sorting box, and the partition divides the sorting box Divided into at least two sorting chambers arranged side by side, the height of the partition is 1 / 2 to 3 / 4 of the height of the sorting box; step B, pouring clean water into each sorting chamber at the same time, clear water The direction of the water flow in the sorting box is facing upward; step C, pass in the sand-water mixture, mix the quartz sand particles and clean water to form a sand-water mixture; 3 / H~300M 3 The flow rate of / H is passed into the sorting box from the side wall of the sorting box; step D, completing the sorting, after the sorting is completed, the quartz sand particles in the sorting chamber are discharged and collected. The invention can carry out multi-stage separation to the quartz sand.

Description

technical field [0001] The invention relates to the technical field of quartz sand processing, in particular to a multi-stage quartz sand sorting method. Background technique [0002] At present, the production process of quartz sand in China mainly includes: mining, crushing, cleaning, drying, sorting, etc. Among them, the sorting is generally carried out by a vibrating screen machine. Set the particle size for sieving to obtain quartz sand with different particle sizes (mesh), but there are many problems in this screening method. First, the particle size of the sorted quartz sand is not uniform, and it is easy to mix some of the larger sand particles. The fine particles make the standard sand after screening due to the different mesh size, resulting in the problem that the particle size distribution of the finished sand is not up to standard; secondly, during the working process of the vibrating screener, due to the impact between the sand particles or between the sand par...

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Problems solved by technology

[0002] At present, the production process of quartz sand in China mainly includes: mining, crushing, cleaning, drying, sorting, etc., and the sorting is generally carried out by vibrating screening machines. Set the particle size for sub-sieving to obtain quartz sand with different particle sizes (mesh numbers), but there are many problems in this screening method. First, the particle size of the sorted quartz sand is not uniform, and it is easy to mix some particles into the larger sand particles. The fine particles make the standard sand after sieving have different mesh sizes, resulting in the problem that the particle size distribution of the finished sand is not up to standard; secondly, during the working process of the vibrating screening machine, due to the impact between the sand particles or between the sand particles and the sieve plate, a large amount of dust, and the main component of dust, silicon dioxide, poses a great threat to human health. If the vibrating screen is not tightly sealed, the dust will fly around in the production area. At the same time, the sand after sorting needs to be further cleaned. Finally, due to During the sand sorting process, the sand and the sieve plate of the vibrating screen are constantly collided, which reduces the durability of the sieve plate and makes the sieve plate need to be replaced after a period of use

Therefore, the method of vibrating screening is only suitable for small batch production

[0003] However, the current conventional process flow of quartz sand needs to clean and dry the broken sand particles before sorting, which makes the production process longer and is not suitable for enterprises with large quartz sand production. Based on the above problems, the applicant developed Developed a sorting method that can shorten the production process of quartz sand

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