Cavity filling hydraulic inorganic powdery foam material, as well as application thereof
A technology of inorganic powder and foaming materials, which is applied in the field of powder foaming materials, can solve the problems of complex operation process and slow development of material strength, and achieve the effects of simplified molding process, simple and convenient application and operation, and fast consolidation
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[0027] Example 1
[0028] The cavity-filled hydraulic inorganic powder foam material of this embodiment is prepared according to the raw materials of No. 1-3 in Table 1-3.
[0029] The application of the cavity-filling hydraulic inorganic powder foam material of this embodiment is used for large-volume filling of downhole caving areas, cavities and behind racks. It proceeds as follows:
[0030] 1. Add the raw materials to the mixer, stir and mix for 15 minutes, and then obtain a dry powder mixture;
[0031] 2. Mix the dry powder mixture prepared in step 1 with water at a mass ratio of 1:2, stir at high speed and continuously output by a screw-type grouting pump to form a foam slurry, and place the foam slurry through the grouting pipeline. Filling is carried out in downhole caving areas, cavities and large volume positions behind the rack.
Example Embodiment
[0032] Example 2
[0033] The cavity-filled hydraulic inorganic powder foam material of this embodiment is prepared according to the raw materials of No. 4-6 in Table 1-3.
[0034] The cavity filling application of the hydraulic inorganic powder foam material of this embodiment is used for the rapid filling of the upper and lower corners, and is carried out according to the following steps:
[0035] 1. Add the raw materials to the mixer, stir and mix for 15 minutes, and then obtain a dry powder mixture;
[0036] 2. Mix the dry powder mixture prepared in step 1 with water according to a mass ratio of 1:2.5, stir at high speed and continuously output by a screw-type grouting pump, prepare foam slurry at the mouth of the transportation pipeline, and inject the foam slurry into the upper and lower corners Filling can be completed within the pre-made frame.
Example Embodiment
[0037] Example 3
[0038] The cavity-filled hydraulic inorganic powder foam material of this embodiment is prepared according to the raw materials of No. 7-9 in Table 1-3.
[0039] The application of the cavity-filling hydraulic inorganic powder foam material of this embodiment is used for filling and sealing underground coal mine fire or high-temperature areas, according to the following steps:
[0040] 1. Add the raw materials to the mixer, stir and mix for 15 minutes, and then obtain a dry powder mixture;
[0041] 2. Mix the dry powder mixture prepared in step 1 with water in a mass ratio of 1:3, stir at high speed and continuously output by a screw-type grouting pump to form foam slurry, and inject the foam slurry through the grouting pipeline Go to the underground fire area or high temperature area for filling and sealing and fire prevention.
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