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Smoke chamber throat dust concentration testing method

A technology of dust concentration and testing method, which is applied in the direction of measuring device, sampling device, and material absorption weighing, etc., and can solve problems such as the inability to meet the dust concentration measurement requirements of the smoke chamber shrinkage

Pending Publication Date: 2021-12-31
华润水泥技术研发(广西)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned existing methods cannot meet the dust concentration test of the smoke chamber shrinkage. Meet the measurement requirements of the dust concentration in the smoke chamber constriction

Method used

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  • Smoke chamber throat dust concentration testing method

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Effect test

Embodiment 1

[0021] Embodiment 1 In this embodiment, as figure 1 As shown in a smoke chamber necking dust concentration test method, comprising the steps of:

[0022] Step one, the wind speed measured by gas necking smoke chamber;

[0023] Step two, according to the wind select the appropriate sampling head;

[0024] Step three, collecting particulate matter in the gas, and to determine the mass of particulate matter, and the dust concentration can be derived by necking gas quantity of exhaust gas through the smoke chamber divided by the mass of particulate matter collected in the gas.

[0025] The present invention is further arranged to: the smoke chamber constriction wind speed of gas flow rate through the smoke chamber necking necking divided by the diameter of the smoke chamber, the gas can be obtained by necking Winds smoke chamber.

[0026] The present invention is further arranged to: air volume of the smoke chamber necking Vsuo = Vrt + Vair + Vco2 + Vlok.

[0027] In this embodiment: ...

Embodiment 2

[0045] Second, a smoking room necking dust concentration test method of embodiment, comprising the steps of:

[0046] Step one, the wind speed measured by gas necking smoke chamber;

[0047] Step two, according to the wind select the appropriate sampling head;

[0048] Step three, collecting particulate matter in the gas, and to determine the mass of particulate matter, and the dust concentration can be derived by necking gas quantity of exhaust gas through the smoke chamber divided by the mass of particulate matter collected in the gas.

[0049] The present invention is further arranged to: the smoke chamber constriction wind speed of gas flow rate through the smoke chamber necking necking divided by the diameter of the smoke chamber, the gas can be obtained by necking Winds smoke chamber.

[0050] The present invention is further arranged to: air volume of the smoke chamber necking Vsuo = Vrt + Vair + Vco2 + Vlok.

[0051] In this embodiment: through the smoke chamber plus the l...

Embodiment 3

[0069] Example I. Example 3 A different from Example No. 2 is that the sample head is made of high temperature quartz material, the diameter size of the sampling head is 8.0 mm.

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Abstract

The invention discloses a smoke chamber throat dust concentration testing method. The method comprises the following steps: step 1, measuring the wind speed of gas passing through a smoke chamber throat; 2, selecting a proper sampling head according to the wind speed; and 3, collecting particulates in the gas, determining the mass of the particulates, and then obtaining the dust concentration of the gas passing through the smoke chamber throat by dividing the mass of the particulates by the waste gas amount in the collected gas, wherein the air speed of the smoke chamber throat gas is obtained by dividing the air volume of the smoke chamber throat by the diameter size of the smoke chamber throat, and the air speed of the gas passing through the smoke chamber throat can be obtained. The air volume Vsuo of the throat of the smoke chamber meets the following equation: Vsuo=Vrt+Vair+Vco2+Vlok, wherein the Vsuo is the ventilation volume of the throat of the smoke chamber, the Vrt is the theoretical smoke volume generated by the combustion of pulverized coal at a kiln head, the Vair is the excess combustion air in the kiln, the Vco2 is the CO2 volume generated by the decomposition of raw materials in the kiln, the Vlok is the air leakage volume of the smoke chamber, and the sampling head is made of a high-temperature-resistant quartz material. The method has the advantage of providing convenience for production debugging and optimization.

Description

Technical field [0001] The present invention relates to a cement clinker, and more particularly relates to a method for testing the smoke dust concentration chamber necking. Background technique [0002] Dust concentration test method is currently measured gas dust concentration GB-T 26282-2010 "cement kiln heat balance determination method" proposed standard, which soot sampling tube inserted into the pipe from the sampling aperture, so that the sampling nozzle is placed measured point, a positive air flow, according to the principles of isokinetic sampling of particulate matter, i.e., the pumping speed sampling nozzle with air velocity at the measuring point are equal, a certain amount of extraction gas dust collected in accordance with the sampling tube and cartridge extraction particulate mass gas amount calculating dust concentration of the gas. [0003] The above-described conventional testing methods measuring the position of the main outlet for the gas preheater, into the...

Claims

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Application Information

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IPC IPC(8): G01N15/06G01N5/02G01N1/22
CPCG01N15/0618G01N5/02G01N1/2247G01N2001/225
Inventor 陶从喜沈序辉梁乾何明海蒋文伟王明韦勇富
Owner 华润水泥技术研发(广西)有限公司