Waste salt refining method

A refining method and dissolution pool technology, which is applied in separation methods, chemical instruments and methods, and dissolution, can solve problems such as cumbersome procedures, and achieve the effects of avoiding impurities from clogging the filter, improving treatment effects, and saving procedures

Active Publication Date: 2021-02-26
重庆商勤禹水环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current waste salt treatment device needs to crush the crystallized waste salt before dissolving, and needs to filter the impurities in the solution after dissolving. The process is relatively cumbersome. An integrated approach to simplify the process of refining waste salt

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The waste salt refining method comprises the steps of:

[0025] Step 1: Prepare as attached figure 1 The high-temperature molten waste salt dissolving device shown includes a dissolving tank 1, a circulating water pipe 2 and a filter mechanism. A furnace 3 is installed on the frame above the side of the dissolving tank 1, and a number of drain pipes 4 arranged side by side are connected to the furnace 3. , the flow rate of all drain pipes 4 is 1.5T / h.

[0026] The dissolving tank 1 is located below the drain pipe 4, the water capacity of the dissolving tank 1 is 30T, the water temperature in the dissolving tank 1 is kept between 50-60°C, and the range of temperature rise after the molten waste salt enters the dissolving tank 1 is kept at Below 15°C. The side wall of the dissolving tank 1 has a water outlet and a water inlet. The circulating water pipe 2 is located outside the dissolving tank 1 and is in contact with the outer wall of the dissolving tank 1. The two end...

Embodiment 2

[0038] The difference from Example 1 is that the location of the melting furnace 3 is replaced by a crusher, and the melted waste salt is cooled into lumps and then crushed into powder by the crusher and then enters the dissolution pool 1.

Embodiment 3

[0040] The difference from the first embodiment is that a scraper is slidingly arranged in the melting furnace 3, and the melting furnace 3 includes a burner port and a feed port. The top of the furnace 3 is made of high temperature resistant heat insulation material, the top of the furnace 3 is fixedly installed with a cylinder, and the top of the furnace 3 has a strip groove, and the scraper is welded vertically with a support strip, and the support strip passes through the strip groove And it is slidingly connected with the bar groove, and the upper end of the support bar is welded with the output shaft of the air cylinder.

[0041] After the waste salt enters the melting furnace 3 through the feeding port, the cylinder is started, and the output shaft of the cylinder is extended to drive the scraper to move, which not only helps to disperse the waste salt accumulated at the feeding port evenly in the melting furnace 3, but also makes the spraying The high-temperature flame...

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Abstract

The invention relates to the field of waste salt processing, in particular to a waste salt refining method which comprises the following steps: step 1, preparing a high-temperature molten waste salt dissolving device which comprises a dissolving tank, a circulating water pipe and a filtering mechanism, and the filtering mechanism comprises a filter screen, a rotary pushing unit and a plugging unit; 2, enabling the molten waste salt to enter the dissolving tank and then to be dissolved to form a solution, enabling the solution to enter a circulating water pipe, adopting the filter screen to adsorb impurities, adopting a rotary pushing unit to enable the solution to flow in a vortex shape, and disperse an adsorbent; 3, when the filter screen is blocked by impurities, adopting the rotary pushing unit to move and promote the solution to impact the filter screen, so that the impurities adhered to the filter screen fall off; 4, enabling the plugging unit to move while the rotary pushing unitmoves, and discharging the solution and falling impurities; 5, after the filter screen is dredged, adopting the solution to drive the rotary pushing unit to reset through the filter screen, and therefore the plugging unit is driven to reset to plug a drain opening; and step 6, carrying out evaporative crystallization and drying. When the technical scheme is adopted, the integration of crushing, dissolving and impurity treatment is facilitated.

Description

technical field [0001] The invention relates to the field of waste salt processing, in particular to a method for refining waste salt. Background technique [0002] The more commonly used refining method of waste salt is to crystallize the molten waste salt incinerated by the incinerator after cooling, crush, dissolve and filter the crystallized waste salt to obtain a relatively pure waste salt solution, and evaporate the waste salt solution Drying yields a relatively pure salt. [0003] The current waste salt treatment device needs to crush the crystallized waste salt before dissolving, and needs to filter the impurities in the solution after dissolving. The process is relatively cumbersome. An integrated method to simplify the process of refining waste salt. Contents of the invention [0004] The object of the present invention is to provide a waste salt refining method integrating crushing, dissolution and impurity treatment. [0005] In order to achieve the above ob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D36/00B01D1/00B01D9/02B01F1/00
CPCB01D36/00B01D1/00B01D9/00B01F21/00
Inventor 冯旭阳杨谢春唐道德张琨谢跃进
Owner 重庆商勤禹水环境科技有限公司
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