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Dynamic inhalational contamination experimental instrument with solid-phase dust

A kind of experimental equipment and poisoning technology, which is applied in the field of solid-phase dust dynamic inhalation poisoning experimental equipment, can solve the problem that the experiment of solid-phase dust can not be directly carried out, the dynamic poisoning experiment cannot be carried out, and the specific operation is inconvenient, etc. question

Inactive Publication Date: 2006-08-16
范维林
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Problems solved by technology

[0002] In toxicology research, the existing technical status is that only two of the three phase states can be completed in the dynamic inhalation exposure experiment, namely the liquid phase and the gas phase dynamic inhalation exposure experiment. Experiments on dust-like substances cannot be carried out directly. During the experiment, the solid-phase dust substances must be turned into liquid phases soluble in water or solvents, and then dynamic poisoning can be carried out.
In this way, the toxicity effect of the poisoned sample will be changed to varying degrees, and the specific operation is also very inconvenient.
More importantly, some substances that are insoluble in water and solvents, such as asbestos, fly ash, cement, quartz stone, and glass dust, cannot be used for dynamic poisoning experiments, making it a difficult problem to overcome this technology

Method used

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  • Dynamic inhalational contamination experimental instrument with solid-phase dust

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Embodiment

[0022] Input the pressure time, rotation speed, and other parameters required for the poisoning experiment on the operation keyboard 3 of the microcomputer main controller 1, and start the experiment program. Show above-mentioned each parameter value on the display screen 2 of microcomputer master control instrument 1 this moment, and record in the computer. When the motor under the control of the microcomputer main controller 1 drives the flexible shaft 10 to rotate at the required speed, the rotating dust blower 9 with adjustable speed is driven to generate solid-phase dust-like aerosol to diffuse. At the same time, the compressed gas of a certain pressure controlled by the microcomputer main controller 1 passes through the adjustable flow gas line pipe 4 with a flow meter to the air injection device 5 for controlling the pressure and adjustable flow, and ejects compressed air of a certain pressure and flow upward to generate an upward flow. The airflow drives the solid phas...

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Abstract

A dynamic solid dust inhalation poisoning experiment apparatus for correctly detecting the toxin of poisoning specimen is composed of microcomputerized master controller, animal poisoning cabin with isolating gate, pressure and flow adjustable jet unit, speed-adjustable rotary dust flying unit, motor for said dust flying unit, specimen feeder, animal fixing frame, dust sampler, temp and humidity sampler, fan, gas filter with vibration separation type dust sieve, and waste gas collector.

Description

technical field [0001] The invention belongs to a solid-phase dust type dynamic inhalation poisoning experimental equipment. Background technique [0002] In toxicology research, the existing technical status is that only two of the three phase states can be completed in the dynamic inhalation exposure experiment, namely the liquid phase and the gas phase dynamic inhalation exposure experiment. Experiments on dust-like substances cannot be carried out directly. During the experiment, the solid-phase dust substances must first be changed into liquid phases soluble in water or solvents, and then dynamic poisoning can be carried out. This will change the toxicity effect of the poisoned sample to varying degrees, and the specific operation is also very inconvenient. More importantly, some substances that are insoluble in water and solvents, such as asbestos, fly ash, cement, quartz stone, and glass dust, cannot be used for dynamic poisoning experiments, making it a difficult pr...

Claims

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Application Information

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IPC IPC(8): A61D99/00A61B10/00G09B23/36A61K49/00
Inventor 范维林
Owner 范维林
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