Transferring point dust suppression device and method

Abstract

The invention relates to a transferring point dust suppression device and method. The device is arranged at the transferring position of an upper-stage belt and a lower-stage belt. The device comprises a discharge pipe, an ultrasonic smoke nozzle, a dust suppression cover, baffle plates, a return pipe, a sealing part and a dust blocking curtain. An induced airflow calculation method is invented, aformula for calculating the size of the induced airflow in different working conditions and devices is provided, guidance is provided for reasonably setting the parameters such as the fogdrop particles and the spraying volume of the ultrasonic smoke nozzle, and the purpose of reducing the dust suppression energy consumption is achieved. Ultrasonic waves are used for generating frog so that the space of the discharge pipe can be humidified, in cooperation with the flow blocking effect of the baffle plates and the dust blocking curtain and the pressure relief effect of the return pipe, dust carried in the airflow settles under the gravity effect, the combination probability of the frog and dust is improved through kinetic energy of the induced airflow, and the dust removal effect is improved. The transferring point dust suppression device and method are suitable for dust suppression of the bulk material belt conveying and transferring process without special requirements on the materialmoisture content, such as dust suppression of the belt conveying processes such as coal, iron ore, building quarrying, sintering and gravel loading and unloading.

Description

technical field [0001] The invention relates to a device and method for dust suppression at a transfer point, which is suitable for dust control in the belt conveying and transfer process of bulk materials that have no special requirements on the moisture content of materials, such as coal, iron ore, construction quarrying, sintering, Dust suppression in belt conveying process such as sand loading and unloading. Background technique [0002] Belt transportation is widely used in the short-distance transportation of bulk materials. The transfer process is often accompanied by the dispersion of dust, which pollutes the production environment and threatens the health of operators. The potential energy of the material at the transfer point is continuously converted into kinetic energy during the falling process, and the speed continues to increase. The pressure difference between the upper and lower surfaces of the granular material is formed, and the airflow that drives the sur...

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Problems solved by technology

[0004] The present invention aims at the technical problem that the existence of the induced air flow will interfere with the airtight effect of the dry fog and dust suppression system during the belt conveying and transshipment process of the bulk material without special requirements on the moisture content of the material. A new method of collaborative dust suppression, specifically a dust suppression device and method for a transfer point

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