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Dust generation equipment and control method thereof
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A dust generation and equipment control technology, applied in mixing methods, chemical instruments and methods, preparation of test samples, etc., can solve the problem that the degree of wear is difficult to judge, the negative pressure of the outlet pipe is difficult to control, the consistency of output dust concentration and dust concentration Accuracy cannot be guaranteed, etc., to achieve the effects of good fluidity, improved uniformity, and improved accuracy
Active Publication Date: 2019-04-26
SUZHOU HANLIN AUTOMOBILE TECH CO LTD +1
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Abstract
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Problems solved by technology
Existing brushes for dust samplers are not easy to judge the degree of wear, the negative pressure of the outlet pipe is not easy to control, the output of dust cannot be accurately controlled, and the consistency and accuracy of the output dust concentration cannot be guaranteed.
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Embodiment 1
[0035] This embodiment provides a dust generating device, which can output a dust flow with a certain concentration, and is used for calibrating the dust concentration sensor.
[0036] see Figure 1-Figure 4 , figure 1 The structure of the dust generating equipment in this embodiment is shown, the dust generating equipment includes a support 100, on which a feeding device 10, a mixing box 20 and a sampling device 30 connected in sequence are installed, and the dust passes through The feeding device 10 is sent into the mixing box 20, and after being diluted in the mixing box 20, it is sucked into the sampling device 30, and the sampling device 30 is used to connect the dust concentration sensor to be calibrated, It outputs a certain concentration of dust to the dust concentration sensor to be calibrated.
[0037] figure 2 The structure of the feed device 10 in this embodiment is shown, the feed device 10 includes a storage hopper 11, and a feed inlet 110 and a stirring devi...
Embodiment 2
[0059] This embodiment provides a method for controlling dust generating equipment, including:
[0060] S1: Provide the dust generating equipment as described in Embodiment 1;
[0061] The dust generating equipment has been described in detail in the above description, and will not be repeated here.
[0062] S2: Turn on the stirring fan 211, the front suction fan 32, the dust concentration tester and the dust concentration sensor to be calibrated;
[0063] The stirring fan 211 can stir the dust in the box 21 evenly. After the front suction fan 32 is turned on, the dust of a certain concentration in the box 21 is sucked into the dust through the dust suction port 31. Inside the sampling device 30. The dust concentration tester tests the dust concentration of the sampling device 30 .
[0064] S3: Obtain the test result of the dust concentration tester after the first time period;
[0065] In one embodiment, the first time period is set to 5s.
[0066] S4: When the test resu...
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Abstract
The invention discloses dust generation equipment which comprises a bracket, wherein a feeding device, a mixing box and a sampling device which are sequentially connected are mounted on the bracket; dust is conveyed into the mixing box through the feeding device, diluted in the mixing box and then sucked into the sampling device; and the sampling device is connected with a dust concentration sensor to be calibrated. According to the dust generation equipment, an output amount of the dust can be accurately controlled by controlling the on / off of the feeding device; under the action of stirring,turbulence and suction of a stirring device, a stirring fan, a front end suction fan and a dust collection fan, the dust in the dust generation equipment can keep good flowability; the concentrationuniformity of the output dust is improved; a concentration of the output dust can be adjusted by controlling opening and closing of a clean air input pipe and adjusting a rotating speed of the front end suction fan; and the concentration accuracy of the output dust is improved. The invention further provides a control method of the dust generation equipment.
Description
technical field [0001] The invention relates to a dust generating device and a control method thereof. Background technique [0002] Dust refers to particles suspended in the air. Too much or too little dust in the atmosphere will have a catastrophic impact on the environment. In production and life, dust is the natural enemy of human health and one of the main causes of various diseases. In order to strictly control the dust concentration, it is necessary to monitor the dust concentration. The commonly used concentration monitoring equipment is the dust concentration sensor. The quality and accuracy of the dust concentration sensor are the greatest guarantee for effective measurement of the dust concentration. The common calibration method of the dust concentration sensor is to connect the dust concentration sensor to a standard dust sampler, inhale a certain concentration of dust in the dust sampler into the sensor, and compare the dust concentration of the dust sampler w...
Claims
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Application Information
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