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LIBS online detection system for phosphate ore beneficiation system and application of LIBS online detection system

A detection system and technology for phosphate rock, applied in measurement devices, solid separation, instruments, etc., can solve the problems of poor quality stability of finished concentrates, long detection and analysis time, and the inability of analysis data to guide the adjustment of pharmaceutical parameters in a timely manner. The effect of sample analysis time, short detection time and quick adjustment

Active Publication Date: 2019-11-15
北矿检测技术股份有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a LIBS online detection system for phosphate ore beneficiation system and its application, to solve the problem that in the existing phosphate ore flotation process system, due to the long time for manual sampling, sample preparation, detection and analysis, the analysis data cannot be guided in time Parameter adjustment during pharmaceutical preparation caused poor quality stability of finished product concentrate

Method used

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  • LIBS online detection system for phosphate ore beneficiation system and application of LIBS online detection system
  • LIBS online detection system for phosphate ore beneficiation system and application of LIBS online detection system
  • LIBS online detection system for phosphate ore beneficiation system and application of LIBS online detection system

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Embodiment 1

[0042] Such as image 3 A LIBS online detection system for phosphate ore beneficiation system is shown, the system is composed of sampler 1, multiplexer 2, LIBS analyzer 3, sand pump 4, liquid storage tank 5, DCS control system, sampling Device 1 communicates with the feed port of multi-channel divider 2 through pipelines, the sample outlet of multi-channel divider 2 communicates with the feed port of LIBS analyzer 3 through pipelines, and the sample outlet of multi-channel divider 2 communicates with the storage port through pipelines. The 5 feed ports of the liquid pool are connected, the 5 discharge ports of the liquid storage tank are connected with one end of the sand pump 4 through a pipeline, and the other end of the sand pump 4 is connected with the raw ore feed port through a pipeline; the 3 discharge ports of the LIBS analyzer are connected with the sand pump 4 through a pipeline. The liquid storage tank 5 is connected to the material inlet, the LIBS analyzer 3 is co...

Embodiment 2

[0046] Such as Figure 4 As shown, the on-line detection system described in embodiment 1 is used for the positive-reverse flotation phosphate ore beneficiation system, and the low-grade collophanite of 1.5 million tons / year is processed (raw ore P 2 o 5 Grade 18~22%, MgO grade 4%~6%), its specific steps are as follows:

[0047] 1) Sampling: Sampling point ⑤ of raw ore in positive flotation, sampling point ⑧ of concentrated ore in positive flotation, and sampling point of tailings in positive flotation Reverse flotation concentrate sampling point Reverse flotation tailings sampling point The sampler 1 is set, and the control valves 11 of the sampler 1 at each sampling point are sequentially opened to take samples, and the samples obtained are pumped into the feed port of the multi-channel shrinker 2 through the pump 12;

[0048] 2) Sample preparation and analysis: After the multi-channel divider 2 divides, the small sample is sent to the LIBS analyzer 3 for online detec...

Embodiment 3

[0054] Such as Figure 5 As shown, the on-line detection system described in embodiment 1 is used for single reverse flotation phosphate ore beneficiation system, and the low-grade collophanite (raw ore P 2 o 5 Grade 18~22%, MgO grade 4%~6%), its specific steps are as follows:

[0055] 1) Sampling: Sampling is set at raw ore sampling point I, reverse flotation tailings sampling point III, reverse flotation beneficiation tailings sampling point IV, reverse flotation medium ore sampling point V, and reverse flotation tailings sampling point VI Open the control valve 11 of the sampler 1 at each sampling point in order to take samples in sequence, and the obtained sample is pumped into the feed port of the multi-channel shrinker 2 through the pump 12;

[0056] 2) Sample preparation and analysis: After the multi-channel divider 2 divides, the small sample is sent to the LIBS analyzer 3 for online detection and analysis of indicators, and the remaining materials are sent to the li...

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Abstract

The invention discloses an LIBS online detection system for a phosphate ore beneficiation system and an application of the LIBS online detection system, and relates to the technical field of phosphateore beneficiation. A sampler is arranged on a pipeline of a beneficiation system, wherein the sampler is used for sampling ore pulp flowing through the pipeline and then pumping the ore pulp into a multi-path splitter; the multi-channel splitter is used for dividing the sample into small samples, feeding the samples into a LIBS analyzer for detection analysis, and sending redundant parts directlyinto a liquid storage tank. After analysis, the sample is also sent into a liquid storage tank, and then pumped into a raw ore feeding port through a sand pump, and enters a beneficiation system. After the samples are analyzed, the samples enter the beneficiation system again, and the raw ores are not wasted. Meanwhile, the links of manual sampling, sample preparation and detection are avoided, and the sample analysis time is shortened. The sample analysis data is uploaded to a DCS in real time, so that technicians can conveniently regulate and control the reagent in real time, the automationand intelligentization of the beneficiation system are improved, the more refined control is achieved through online detection, the quality stability of the finished product concentrate is guaranteed, the grade of the phosphorus concentrate product is improved, wherein P2O5% of the concentrate product is more than or equal to 28.5%, and MgO is less than or equal to 0.8%.

Description

technical field [0001] The invention relates to the technical field of phosphate ore beneficiation, in particular to a LIBS online detection system for a phosphate ore beneficiation system and its application. Background technique [0002] my country has abundant reserves of phosphate rock resources, but the reserves of high-grade phosphate rock are low. At present, the average grade of phosphate rock in my country is only 16.95%, and a large number of them are low- and medium-grade phosphate rocks, of which 80% have not been effectively developed. Utilization, collophanite is a typical low-grade phosphate rock. On the other hand, in order to meet the needs of the domestic market, a large amount of phosphate fertilizers are imported every year. In order to solve the fundamental way of this contradiction between supply and demand, it is the key to overcome the development of low-grade phosphate rock resources in my country. [0003] At present, there are two kinds of mixed t...

Claims

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Application Information

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IPC IPC(8): G01N21/71B03B9/00
CPCG01N21/718B03B9/00
Inventor 夏敬源魏立军谢国先字佳林郭永杰冯晓军张朝旺张慧
Owner 北矿检测技术股份有限公司
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