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Sampling device and method for wet-process lead recycling, dissolving and leaching procedures

A sampling device and lead recovery technology, applied in the field of sampling, can solve the problems of prolonging the reaction time, harming human health, affecting the reaction state in the kettle, etc., and achieving the effects of shortening the reaction time, improving the recovery efficiency and protecting human health.

Inactive Publication Date: 2017-02-22
CHAOWEI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that lead and lead compounds will be taken out by water vapor during sampling analysis in the existing wet lead recovery process, which will cause huge damage to human health. Because the stop of stirring will cause the lead ion to settle and stratify itself, the sampling result will be reduced. Errors are caused, and at the same time, sampling will also affect the reaction state in the kettle, and the defect of prolonging the reaction time provides a sampling device for the wet-process lead recovery, dissolution and leaching process that can take samples in real time and does not affect the material composition and reaction conditions in the kettle.

Method used

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  • Sampling device and method for wet-process lead recycling, dissolving and leaching procedures

Examples

Experimental program
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Effect test

Embodiment 1

[0020] A kind of sampling method of wet-process lead recovery, dissolution and leaching process, during sampling analysis, first open the cooling water outlet valve 10 and the cooling water inlet valve 7 on the jacketed airtight glass tank 9, then close the vent valve 5, discharge valve 8, and then Turn on the water flushing pump 11 sequentially, the water flushing shut-off valve 6 and the sampling feed shut-off valve 4 start sampling, and the sampling is completed when the sample in the reactor 1 enters the jacketed airtight glass jar 9 .

[0021] After sampling, first close the water flushing pump cut-off valve 6, turn off the water flushing pump 11, and open the vent valve 5 within 1 minute. After the residual material in the sampling feed shut-off valve 4 is reversely pressed into the reactor 1, close the sampling Feed cut-off valve 4, after the material in the jacketed airtight glass tank 9 is cooled to room temperature, close the cooling water inlet valve 7 and the coolin...

Embodiment 2

[0023] A kind of sampling method of wet-process lead recovery, dissolution and leaching process, during sampling analysis, first open the cooling water outlet valve 10 and the cooling water inlet valve 7 on the jacketed airtight glass tank 9, then close the vent valve 5, discharge valve 8, and then Turn on the water flushing pump 11 sequentially, the water flushing shut-off valve 6 and the sampling feed shut-off valve 4 start sampling, and the sampling is completed when the sample in the reactor 1 enters the jacketed airtight glass jar 9 .

[0024] After sampling, first close the water flushing pump cut-off valve 6, turn off the water flushing pump 11, and open the vent valve 5 within 3 minutes. After the residual material in the sampling feed shut-off valve 4 is reversely pressed into the reactor 1, close the sampling Feed cut-off valve 4, after the material in the jacketed airtight glass tank 9 is cooled to room temperature, close the cooling water inlet valve 7 and the cooli...

Embodiment 3

[0026] A kind of sampling method of wet-process lead recovery, dissolution and leaching process, during sampling analysis, first open the cooling water outlet valve 10 and the cooling water inlet valve 7 on the jacketed airtight glass tank 9, then close the vent valve 5, discharge valve 8, and then Turn on the water flushing pump 11 sequentially, the water flushing shut-off valve 6 and the sampling feed shut-off valve 4 start sampling, and the sampling is completed when the sample in the reactor 1 enters the jacketed airtight glass jar 9 .

[0027] After sampling, first close the water flushing pump shut-off valve 6, turn off the water flushing pump 11, open the vent valve 5 within 5 minutes, and wait for the residual material in the sampling feed shut-off valve 4 to be reversely pressed into the reactor 1, then close the sampling Feed cut-off valve 4, after the material in the jacketed airtight glass tank 9 is cooled to room temperature, close the cooling water inlet valve 7 a...

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Abstract

The invention relates to a sampling device and method for wet-process lead recycling, dissolving and leaching procedures. When sampling analysis is conducted, a cooling water outlet valve and a cooling water inlet valve which are arranged on a jacketed closed glass pot are switched on, an emptying valve and a discharging valve are switched off, a water flushing pump, a water flushing stop valve and a sampling and feeding stop valve are started and switched on sequentially, then sampling starts to be conducted, and when a sample in a reaction kettle enters the jacketed closed glass pot, sampling is finished. By means of the device and method, real-time sampling can be achieved, the material composition and reaction conditions in the kettle are not affected, and meanwhile the condition that great damage is caused to human body health due to the fact that lead and lead compounds can be brought out by water vapor when sampling analysis is conducted cannot occur, so that the human body health is protected; the reaction time is shortened, and the recycling efficiency is improved.

Description

technical field [0001] The invention relates to a sampling method, in particular to a sampling device and method for a wet-process lead recovery, dissolution and leaching process capable of sampling in real time without affecting the composition and reaction of materials in a kettle. Background technique [0002] The wet lead recovery process generally consists of the following steps: 1. Desulfurization, 2. Dissolution and leaching, 3. Precipitation, 4. Roasting and decomposition. In order to ensure that the quality of the final recovered product is effectively controlled, sampling is required for each process Analysis and monitoring of the quality of intermediates or products, especially for the sampling analysis of samples in the high-temperature dissolution and leaching process completed in the reactor, has always been an unsolvable difficult problem. The dissolution and leaching process is mainly to dissolve lead and lead The oxide is converted into a complex lead ion so...

Claims

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Application Information

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IPC IPC(8): G01N1/14
CPCG01N1/14
Inventor 代少振项晨王江林吴鑫王亚斌
Owner CHAOWEI POWER CO LTD
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