Dry process scale continuous production process of quartz sand

Abstract

The invention discloses a dry process scale continuous production process of quartz sand, which comprises the process steps of quartz ore breaking and crushing, product grading, packaging and transportation, dust pollution treatment and the like. In the process step of the quartz ore breaking, a two-grade screening type breaker is adopted, and a cleaning dewatering screen and a broken stone drying tower are arranged between two grades of screening and breaking; in the process step of quartz ore crushing, a single-stage HK type sand making machine is adopted, and single-group production or multi-group parallel production can be performed from the HK type sand making machine to the finished product delivery after screening and grading. In the process step of product grading, the mode combining air classification and sieve classification is adopted, namely the process step of single-stage air classification, single-stage drum screen classification and two-stage rotation movable screeningmachine classification is adopted, wherein the air classification adopts negative pressure classification to realize comprehensive functions of separation and dust removal. In the process step of packaging and transportation, a production process in which a plurality of machine sets are connected in parallel is adopted, and the same product is collected and conveyed to a finished product storage bin by the same conveyor to realize the integration of packaging and shipping.

Description

technical field [0001] The invention belongs to the technology of dry processing of quartz sand, in particular to a large-scale continuous production process of dry processing of quartz sand. Background technique [0002] So far, there is no mature processing technology for large-scale continuous production of quartz sand dry processing and the corresponding production equipment. At present, the domestic dry processing of quartz sand only stays in the process stage of small-scale and family workshops. Its main production methods are: quartz sand ore raw material → jaw crusher (coarse crushing) → hammer crusher (fine crushing) → high-frequency vibrating screen (classification) → transportation and finished product packaging, etc. There are the following problems in such a production process combination: 1. The productivity of the fine crushing equipment is low, the hammer heads are replaced frequently, the failure rate of the equipment is high, and the labor intensity of the...

AI Technical Summary

Problems solved by technology

Such a combination of production processes has the following problems: 1. The productivity of the fine crushing equipment is low, the hammer heads are replaced frequently, the failure rate of the equipment is high, and the labor intensity of the workers is high.

Therefore, regardless of the production process or equipment selection, it is difficult for the hammer crusher to undertake the heavy responsibility of fine crushing equipment.

2. The high-frequency vibrating screen is used as a grading and screening equipment for fine particles, and the production efficiency is low

Therefore, the high-frequency vibrating screen is not an ideal supporting screening equipment in the large-scale production of quartz sand dry processing

3. Manual packaging and single-piece packaging cannot meet the technological requirements of large-scale production

4. The dust pollution in the production site is serious

The above-mentioned defects in the quartz sand dry processing technology and some production equipment have always plagued the large-scale production of domestic quartz sand dry processing enterprises.

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