Reciprocating material feeding type high-concentration dust producer

Abstract

The invention discloses a reciprocating material feeding type high-concentration dust producer which comprises a launching barrel and an air drafting baffle. The launching barrel and the air drafting baffle are connected with a rack fixedly; a shaft sleeve is arranged above the launching barrel along the radial direction; a dust producing rod is arranged in the shaft sleeve; the diameter of the dust producing rod is smaller than the aperture of the inner hole of the shaft sleeve; a reciprocating motion rod is fixedly connected at the upper end of the dust producing rod; a dust depositing tank is arranged above the shaft sleeve; the upper end of the reciprocating motion rod penetrates through the dust depositing tank; the lower end of the reciprocating motion rod is located in the dust depositing tank; the dust depositing tank is communicated with the launching barrel through the shaft sleeve; a bearing installation base is fixed at the upper end of the reciprocating motion rod; a rolling bearing is arranged in the bearing installation base; the rolling bearing is in rolling contact with an eccentric wheel; the eccentric wheel is connected with a speed change device; the speed change device is connected with a motor; a spring is arranged between the reciprocating motion rod and the shaft sleeve; and the air drafting barrel is provided with an original dust gauge opening under the shaft sleeve. The dust producer is in a manner of reciprocating material feeding with large dust production quantity, high dust production concentration and small dust production error.

Description

technical field [0001] The invention relates to a dust generator for testing the dust removal efficiency of the dust collector. Background technique [0002] As the country attaches great importance to dust control, many environmental management units have successively developed a variety of large air volume dust removal equipment with different specifications and models. The small amount of dust generation (12g / min) cannot meet the requirements of the inspection standard, and the inspection department can only detect it through manual dust generation, but human operation errors bring many uncertain factors to the detection of dust removal equipment, resulting in the test data The distortion cannot truly reflect the performance of the tested equipment at all, and cannot make a scientific judgment on the performance of the dust removal equipment. [0003] Therefore those skilled in the art devote themselves to developing a kind of high-concentration dust generator. Content...

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Problems solved by technology

[0002] As the country attaches great importance to dust control, many environmental management units have successively developed a variety of large air volume dust removal equipment with different specifications and models. The small amount of dust generation (12g/min) cannot meet the requirements of the inspection standard, and the inspection

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