Continuous online monitoring equipment and method for concentration of fluoride in environment air

A continuous technology of ambient air and concentration, applied in the preparation of test samples, measuring devices, electrochemical variables of materials, etc., can solve the problems of inability to continuously monitor fluoride concentration, long operation cycle, time-consuming and labor-intensive, etc., to overcome outdoor extremes Environmental impact, broad application value, effect of reducing complexity

Pending Publication Date: 2018-09-14
QINGDAO ZHONGRUI INTELLIGENT INSTR
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Problems solved by technology

[0004] Aiming at the problem that the manual detection method of collecting fluoride by filter membrane filter paper and processing, analyzing and calculating in the laboratory is long, time-consuming and labor-intensive, and cannot continuously monitor the concentration of fluoride in the ambient air, the present invention proposes an outdoor sampling process, experimental On-line monitoring equipment and methods that integrate the laboratory analysis process and data processing and calculation process into one, and can automatically and remotely monitor online continuously

Method used

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  • Continuous online monitoring equipment and method for concentration of fluoride in environment air
  • Continuous online monitoring equipment and method for concentration of fluoride in environment air

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Experimental program
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Embodiment 1

[0038] Embodiment one: if figure 1 , figure 2 As shown, a continuous online monitoring device for fluoride concentration in ambient air, including a gas sampling system, a fluoride capture system, a solution neutralization system, a solution measurement system, a solution storage and delivery system, and a main control system connected in sequence through pipelines, The equipment integrates the outdoor sampling process, laboratory analysis process and data processing calculation process, and can automatically, remotely and online continuously monitor the concentration of fluoride in the ambient air.

[0039] The gas sampling system includes a TSP cutter 1, a filter drier 2 and a sampler 3. The ambient air is sucked into the sampling pipeline by the TSP cutter 1, passes through each shock bottle of the fluoride trapping system, and passes through the filter drier 2. After drying, it is discharged by the sampler 3;

[0040] The fluoride trapping system includes two hydrochlor...

Embodiment 2

[0052] Embodiment two: a kind of ambient air fluoride concentration continuous online monitoring method based on embodiment one, comprises the following steps:

[0053] (1) The controller controls the start of the sampler 3, and the ambient air enters the sampling pipeline from the TSP cutter 1;

[0054] (2) The gas after particle removal by TSP cutter 1 flows through hydrochloric acid solution, sodium hydroxide solution and throttling impact bottle in sequence, and then is filtered by water filter drier 2 to remove water, and then discharged through sampler 3;

[0055] (3) The hydrochloric acid solution, sodium hydroxide solution and the liquid in the throttling shock bottle in step 2 are all filtered and then pumped to the solution neutralization bottle 8;

[0056] (4) The pH electrode 9 detects the pH value of the liquid in the solution neutralization bottle 8 in real time and transmits the detected value to the controller. The syringe pump in the solution storage and deliv...

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Abstract

The invention provides continuous online monitoring equipment and method for concentration of fluoride in environment air. The equipment comprises a gas sampling system, a fluoride trapping system, asolution neutralizing system, a solution measuring system, a solution storing and delivery system and a main control system, and the gas sampling system, the fluoride trapping system, the solution neutralizing system, the solution measuring system and the solution storing and delivery system are connected in sequence through a pipeline. The online monitoring equipment integrates outdoor sampling equipment, laboratory analysis equipment and a data processing and calculating process, and online continuous monitoring can be automatically and remotely achieved. During on-spot detection, what is simply needed is to replace prepared liquor periodically, personnel do not need to be on duty, the monitoring working efficiency is greatly improved, the labor and material resources are saved, and thecontinuous online monitoring equipment and method have high application and popularization value.

Description

technical field [0001] The invention belongs to the technical field of air quality monitoring, and in particular relates to a continuous on-line monitoring device and method for fluoride concentration in ambient air. Background technique [0002] There are two types of fluoride in the ambient air: gaseous fluorine and dusty fluorine. The gaseous fluorine is mainly hydrogen fluoride. As long as the fluorine-containing dust is cryolite, fluorite, aluminum fluoride and phospholime, the pollution mainly comes from electrolytic aluminum plants, phosphate fertilizer plants and Gases and dusts emitted or escaped from cryolite factories, etc. Humans can be killed by acute poisoning at a concentration of 400-430 mg / m3 of hydrogen fluoride. Long-term inhalation of gas and dust of low-concentration fluorine and its compounds can affect the normal physiological functions of various tissues and organs, and even cause chronic fluorosis and skeletal fluorosis. Therefore, it is very import...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/30G01N1/24G01N1/34
CPCG01N1/24G01N1/34G01N27/30G01N27/302
Inventor 刘凯贺强强史殿龙李玉滨范林孟凡良
Owner QINGDAO ZHONGRUI INTELLIGENT INSTR
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