Main features: 1) When the water into the coal, the release of part of the gas, coal gas content can be reduced. 2) After injection to achieve the effect, can reduce dust, improve the working environment of workers, while reducing dust explosion. 3) wet coal, industrial products to reduce the fire and reduce costs; 4) high-pressure water can crush coal, while reducing the explosive products, reduce costs; 5) the use of coal seam water sealing is broken, can effectively prevent the coal and gas outburst with the explosion. When the capsule sealing process steps using a drilling hit the need to measure the length of the initial velocity of gas emission mine water sealing device, immediately unplug the drill pipe, the sealing device into a certain depth, so that the amount of gas emission measurement chamber length of 0.5m (with a short initial rate of gas emission holes Face Outburst Prediction time) and 1m (with cuttings volume and the initial velocity of gas emission maxima at Face Outburst prediction). 2, open the valve, with a pump or pump water to the capsule cheer seam sealing device manufacturers can not pull by hand until the sealing device stops. Then close the valve. 3, then the flow measurement of gas emission drilling the initial velocity. 4, measured after the completion of the expansion of rubber sealing water pipe, open the valve, the capsule deflated, out sealing device. Water sealing device, Bo-Rubber (certified), water sealing is provided by Bo-Rubber Products Co., Ltd. Hengshui. Hengshui Bo-Rubber Products Co., Ltd. (www.jxboguang.com/) is an industry leader in Hebei Hengshui, transportation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Bo-Rubber leadership with the staff warmly welcome all inquiries negotiations to create the Bo-Rubber better future.