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Pickling apparatus, pickling method, and quartz sand preparation method

A technology of pickling device and quartz sand, applied in the directions of silicon dioxide and silicon oxide, can solve the problems of complicated pickling process, troublesome preparation, unfavorable cost, etc. Effect

Inactive Publication Date: 2014-02-26
周金堂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the waste acid after pickling is discharged directly, it will cause serious environmental pollution and is not conducive to cost saving
At the same time, the acid used in the existing process of preparing quartz sand is a mixed acid of various acids, which is troublesome to prepare; the pickling process is complicated and the iron content in the final finished quartz sand is relatively high

Method used

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  • Pickling apparatus, pickling method, and quartz sand preparation method
  • Pickling apparatus, pickling method, and quartz sand preparation method
  • Pickling apparatus, pickling method, and quartz sand preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0034] see Figure 1-4 , the embodiment of the present invention provides a pickling device, including the original acid bucket 5, the acid bucket 8, the wastewater treatment structure 9 and at least one pickling bucket 1, the original acid bucket 5, the acid bucket 8, the pickling bucket 1 It is connected with the waste water treatment structure 9 in turn. Wherein, the original acid bucket 5, the acid bucket 8, the pickling bucket 1 and the waste water treatment structure 9 are basically the same as the corresponding structure of the existing pickling device, the difference is that the pickling device provided by the present invention has also increased The acid recovery part, the acid recovery part includes a selective conveying structure, an acid recovery structure and at least one visualizer 2 , that is, the pickling device in the present invention also includes a selective conveying structure, an acid recovery structure and at least one visualizer 2 . Among them, the pic...

Embodiment 2

[0056] see figure 1 and 5 , the embodiment of the present invention provides the pickling method using the pickling device provided in Example 1, the method comprising the following steps:

[0057] (1) Acid soaking: soak the quartz sand with a moisture content of less than 5% in the pickling bucket for 5-10 days with the hydrochloric acid output from the acid bucket. The mass ratio of quartz sand to hydrochloric acid is 1:0.4-0.6.

[0058] Specifically, fill 60-75% of the volume of the pickling bucket 1 with quartz sand, flatten its upper part after installation, and then add hydrochloric acid from the acid bucket 8 to the pickling bucket 1 through the pipeline, and the hydrochloric acid is basically full of acid. After washing the barrel 1, add a film to seal the top of the pickling barrel 1 and soak for 5-10 days.

[0059] In another solution of the embodiment of the present invention, it is possible to directly use recovered hydrochloric acid with a MW greater than 16 for...

Embodiment 3

[0072] see Figure 6 , the embodiment of the present invention provides a quartz sand preparation process, the quartz sand preparation process includes the following steps:

[0073] 201 Machine sorting: Use a sorting machine to select ore with less impurities and high quality.

[0074] 202 Crushing: Crushing the ore into particles with a particle size of less than 5cm using a crusher.

[0075] 203 Washing: Use a material selector and water to wash the quartz sand particles.

[0076] 204 sieving: small particles of quartz sand (particle size less than 5cm) are allowed to pass through, and large particles of quartz sand can be returned to 202 for further crushing.

[0077] 205 candidates: manual selection to remove impurities in the quartz sand.

[0078] 206 Grinding: Use an iron mill to grind the quartz sand particles into 40-200 mesh quartz sand powder.

[0079] 207 Water magnetic separation: magnetically separate quartz sand powder in flowing water through a magnetic sepa...

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Abstract

The invention discloses a pickling apparatus, a pickling method, and a quartz sand preparation method, and belongs to the technical field of quartz sand preparation. The apparatus comprises a raw acid barrel, a complex acid barrel, a wastewater treatment structure, a selective conveying structure, an acid recovery structure, a pickling barrel and a visual device. The raw acid barrel, the complex acid barrel, the pickling barrel, the visual device and the selective conveying structure are sequentially connected, the output end of the selective conveying structure is only communicated with the input end of the acid recovery structure when the foaming time in the visual device is less than a predetermined value, and the output end of the selective conveying structure is only communicated with the wastewater treatment structure when the foaming time in the visual device is not less than a predetermined value; and the output end of the acid recovery structure is connected with the complex acid barrel, an acid in the complex acid barrel can be directly output to the pickling barrel when the concentration of hydrochloric acid in the complex acid barrel is greater than 16 Baume gravities, and the complex acid barrel is communicated with the raw acid barrel to make the concentration of hydrochloric acid in a range of 20-22 Baume gravities when the concentration of hydrochloric acid in the complex acid barrel is not greater than 16 Baume gravities. The pickling apparatus, the pickling method and the quartz sand preparation method allow 98% of hydrochloric acid to be recovered, the wastewater emission to be reduced and the wastewater treatment cost to be reduced.

Description

technical field [0001] The invention belongs to the technical field of quartz sand preparation, and in particular relates to a pickling device, a pickling method and a preparation method of quartz sand, in particular to a pickling device, an acid pickling device, and an acid pickling device in the preparation process of high-purity quartz sand used for manufacturing optical glass. Washing method and preparation method of quartz sand. Background technique [0002] Quartz sand is an important industrial mineral raw material, non-chemical dangerous goods, widely used in glass, casting, ceramics and refractory materials, ferrosilicon smelting, metallurgical flux, metallurgy, construction, chemical industry, plastics, rubber, abrasives and other industries. Its unique physical and chemical properties make it play a pivotal role in aviation, aerospace, electronics, machinery and today's rapidly developing IT industry, especially its internal molecular chain structure, crystal shap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/12
Inventor 周金堂
Owner 周金堂
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