Underground dust-removing foam generator and foam dust-removing equipment

Abstract

The invention discloses an underground dust-removing foam generator and foam dust-removing equipment. The foam dust-removing equipment comprises a foaming agent liquid storing tank, a quantitative pump, an air compressor, a generator, a water inlet pipe and a foam spraying head, wherein the air compressor is communicated with the quantitative pump through an air inlet pipeline; the generator is communicated with the air compressor through an air inlet pipeline; the water inlet pipe is communicated with the inlet of the generator; a filter is arranged on the water inlet pipe; the quantitative pump is communicated with the water inlet pipe; and the foam spraying head is connected with the outlet of the generator through a pipeline; the generator comprises a barrel body, an inlet pipe, a Venturi tube, a turbulating barrel and an outlet pipe, wherein an air inlet pipe is arranged on the wall of the barrel body; the input pipe is arranged at the front end of the barrel body; the Venturi tube is arranged inside the barrel body; an air inlet hole is formed in the diffusive section of the back part of the Venturi tube; the central line of the air inlet pipe is tangent to the diffusive section of the Venturi tube; the turbulating barrel is arranged behind the barrel body; a turbulating central shaft is arranged in the turbulating barrel; a long turbulating sheet and a short turbulating sheet are arranged on the turbulating central shaft; and the output pipe is arranged at the back end of the turbulating barrel. The foam generator for the underground dust removal and the foam dust-removing equipment are compact in structure and reasonable in design.

Description

technical field [0001] The invention relates to a foam dedusting device, in particular to a foam dedusting device for controlling dust disasters in places with narrow spaces such as underground mining working faces. Background technique [0002] Every process of coal mine operation is accompanied by a large amount of dust. Workers will inhale a large amount of dust when working in this environment, which seriously endangers the physical and mental health of workers. At present, there are about 260,000 pneumoconiosis patients in my country's coal mining industry, and the number is increasing at a rate of 5,000 every year, and about 3,000 people die of pneumoconiosis every year. In order to effectively prevent and control coal mine dust, measures such as spray dust removal and coal seam water injection are commonly used underground in coal mines, but the dust removal efficiency is low. Later, foam dust removal technology appeared. Foam dust removal is to install the generator...

AI Technical Summary

Problems solved by technology

In order to effectively prevent and control coal mine dust, measures such as spray dust removal and coal seam water injection are generally adopted underground in coal mines, but due to the low efficiency of dust removal

Later, foam dust removal technology appeared. Foam dust removal is to install the generator near the dust production point and rely on a large amount of foam to flow with the wind to cover the dust source. However, this method has the following two disadvantages: first, a large amount of foam appears at the work site, Affect workers' work. The second is that the generator is bulky and not easy to be flexibly installed near the coal mining machine. It is impossible to effectively control the main source of dust production in the underground mining process of the coal mine.

However, this foaming tube uses a nozzle to spray the foaming liquid onto the foaming net. Because the downhole water often contains impurities, it is easy to cause the nozzle to be blocked; Easy to damage, affect the foaming effect, need frequent maintenance and replacement

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