Introduction to Coal seam sealing water injection sealing device product structures and Applications seam sealing is composed of high-pressure water swelling rubber hose, safety valves, quick connector components. Coal injection sealing device is mainly used in the media or rock grouting, when water and subsequent plugging holes. Coal water, dust, falling coal pressure, cracking of coal, gas and other emissions. Coal injection sealing device mainly used in coal mining, prevention and treatment of gas, dust, water conservancy and hydropower construction, leak-proof construction, mining tunnel rubber sealing device expansion pipe water, ground and pouring cement. Design an injection. Select the water way: According to the characteristics of the coal seam mine design coal injection using a long way Dynamic Pressure Water Injection. Unidirectional drilling arrangement, namely Face return air trough parallel work to fight for coal drilling water injection sealing device, drilling along the seam evenly arranged, opening position from the floor height of 1.5 meters gas drainage water seal hole, a drill spacing of 10 meters. 2. Determine water drilling parameters: water drilling parameters are mainly: hole diameter, drilled length, spacing, drilling angle, length and sealing methods. (1) Drilling diameter: coal pore size and hardness, water injection requirements of sealing technology and drilling conditions, the use of water injection hole diameter 75mm. (2) drill length: L = L1-M = 103.9-1 / 3 × 103.9≈69.27m formula: L- drilling length; L1- face length; M- and coal permeability and associated drilling direction parameters (under this Face seam permeability and strong to the hole, take 1 / 3L1) in order to fully wet coal, speed injection time, drilling length is 80 m (3) Drilling Spacing: Spacing depends on the coal seam drilling a combination of factors of water permeability, and the tendency towards the direction of penetration of the differences, coal seam thickness and depth of the sale of water sealing sealing device, considering the design of the drilling spacing take 10m. (4) drilling angle: The angle drilling in principle consistent with the seam dip, so always keep drilling in coal, so as not to penetrate the roof and floor, drilled as a vertical seam joint plane. (5) sealing depth and sealing methods: sealing should ensure sealing at and near the coal wall flooding, draining and water seepage does not occur; drain and water leakage does not occur before the wet radius does not meet the design requirements, the design sealing using sealing device sealing, sealing depth of 8 meters. Rubber injection sealing device, Bo-Rubber (certified), Bristol 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.