Material cleaning equipment and material cleaning method

A technology for cleaning equipment and materials, applied in chemical instruments and methods, cleaning methods and utensils, cleaning methods using tools, etc. High performance and efficiency, low cost, simple and convenient wastewater treatment

Pending Publication Date: 2019-08-16
NINGXIA LONGI SILICON MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the purpose of the embodiments of the present invention is to provide a material cleaning equipment and a material cleaning method to solve the problem of low safety and efficiency, great harm to human body, high cost and silicon material cleaning in the prior art. The problem of large material loss

Method used

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  • Material cleaning equipment and material cleaning method
  • Material cleaning equipment and material cleaning method
  • Material cleaning equipment and material cleaning method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] refer to figure 1 , which shows a structural block diagram of an embodiment of a material cleaning device of the present invention, which may specifically include:

[0049] The scrubbing device 1 is used for scrubbing the materials to be cleaned.

[0050]Wherein, the surface of the material to be cleaned may adhere to metal ions and mud, and the surface of the material to be cleaned may also adhere to other substances that can be scrubbed off. Specifically, the material to be cleaned may be a non-metallic material, such as silicon material.

[0051] The scrubbing device 1 can remove mud and other substances that can be scrubbed off the surface of the material to be cleaned.

[0052] The soaking device 2, the feeding end of the soaking device 2 is adapted to the discharge end of the scrubbing device 1, the soaking device 2 is used to hold the citric acid solution, and the soaking device 2 is also used to soak the scrubbed material in the citric acid solution.

[0053]...

Embodiment 2

[0064] refer to figure 2 , which shows a structural block diagram of another material cleaning equipment embodiment of the present invention, which may specifically include:

[0065] The scrubbing device 10 is used for scrubbing the materials to be cleaned.

[0066] Wherein, the surface of the material to be cleaned may adhere to metal ions and mud, and the surface of the material to be cleaned may also adhere to other substances that can be scrubbed off. Specifically, the material to be cleaned may be a non-metallic material, such as silicon material.

[0067] Optionally, the scrubbing device 10 may use cleaning liquid to wet the material when scrubbing the material to be cleaned. Wherein, the cleaning liquid may be water, alcohol or the like.

[0068] The second rinsing device 20, the feed end and the discharge end of the second rinsing device 20 are respectively adapted to the discharge end of the scrubbing device 10 and the feed end of the soaking device 30, and the se...

Embodiment 3

[0099] refer to Figure 4 , which shows a flow chart of the steps of an embodiment of a material cleaning method of the present invention, which may specifically include the following steps:

[0100] S1, scrubbing the material to be cleaned.

[0101] Wherein, the surface of the material to be cleaned may adhere to metal ions and mud, and the surface of the material to be cleaned may also adhere to other substances that can be scrubbed off. Specifically, the material to be cleaned may be a non-metallic material, such as silicon material.

[0102] Step S1 can remove mud and other substances that can be scrubbed off the surface of the material to be cleaned.

[0103] S2, soaking the scrubbed material in a citric acid solution.

[0104] Step S2 can remove the metal ions on the surface of the scrubbed material.

[0105] Optionally, the concentration of the citric acid solution can be 5% to 50%, the temperature of the citric acid solution can be greater than or equal to 10 degre...

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PUM

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Abstract

The invention provides material cleaning equipment and a material cleaning method. The equipment comprises a scrubbing device, a soaking device and a first rinsing device. The scrubbing device is usedfor scrubbing a to-be-cleaned material; the feeding end of the soaking device is matched with the discharging end of the scrubbing device, and the soaking device is used for containing a citric acidsolution and is also used for soaking the scrubbed material in the citric acid solution; the feeding end of the first rinsing device is matched with the discharging end of the soaking device and the first rinsing device is used for rinsing the soaked material. Puree is eliminated by scrubbing and metal ions are eliminated by citric acid. The cleaning process is carried out automatically without human participation, so that the equipment is high in safety and efficiency, low in cost and lossless to material. As the citric acid is mild in property, the material cleaning equipment is very small in harm to the human body and damage to the environment. In addition, in the cleaning process, no exhaust gas is generated. The generated waste water which is only neutralized by acid and alkali simplycan be discharged, the waste water is simple and convenient to treat and the cost is low.

Description

technical field [0001] The invention relates to the technical field of surface treatment, in particular to a material cleaning device and a material cleaning method. Background technique [0002] At present, in order to reduce the processing cost of solar-grade ingots (silicon ingots), it is necessary to recycle and reuse the head and tail silicon materials and corner silicon materials generated during the processing of cutting ingots and squaring ingots. However, in the process of cutting the ingot, a large amount of silicon powder will be produced, which will form silicon mud after mixing with water and adhere to the surface of the silicon material. In addition, since the steel wire used for cutting the ingot is made of metal, the steel wire After rubbing against the silicon rod at high temperature, a large amount of metal ions will be adsorbed on the surface of the silicon material. Therefore, before the recovered silicon material is used to pull crystal ingots, it is ne...

Claims

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Application Information

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IPC IPC(8): B08B3/02B08B3/08B08B1/02
CPCB08B3/022B08B3/08B08B1/20Y02W30/62
Inventor 王雪峰黄学宁王霞陆锋赵常福李学东
Owner NINGXIA LONGI SILICON MATERIALS
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