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Guniting material suitable for surface treatment of carboniferous coal mine roadway and preparation method thereof

A surface treatment and shotcrete technology, applied in the field of shotcrete materials for coal mine roadways, can solve problems such as cracking, and achieve the effects of improving adhesion, improving integrity and ensuring strength

Inactive Publication Date: 2020-08-18
陕西拉发纪新材料科技有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention provides a shotcrete material suitable for the surface treatment of Carboniferous coal mine roadway and its preparation method to solve the problem that the current Carboniferous coal mine roadway is easily cracked under the action of free gas pressure

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  • Guniting material suitable for surface treatment of carboniferous coal mine roadway and preparation method thereof

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Embodiment Construction

[0024] The following is further described in detail through specific implementation methods:

[0025] The present invention provides the raw material ratio tables of Examples 1-6 of the shotcrete materials suitable for the surface treatment of Carboniferous coal mine roadways, as shown in Table 1 below.

[0026] Table 1 is the ratio of the shotcrete material suitable for the surface treatment of the Carboniferous coal mine roadway in Examples 1 to 6 ("--" indicates that it does not contain)

[0027]

[0028] The preparation method of the shotcrete material applicable to the surface treatment of Carboniferous coal mine roadway surface treatment is described in detail below with Example 1, prepare the cement of 10kg, the river sand of 15kg, the fly ash of 5kg, the cinder of 18kg and the plastic fiber of 2kg, Mix the prepared solid raw materials, stir the mixed solid raw materials and water at a mass ratio of 2.5:1, and use manual stirring, then stir for 3 to 5 minutes to obta...

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Abstract

The invention relates to the technical field of coal mine roadway guniting materials and particularly discloses a guniting material suitable for surface treatment of carboniferous coal mine roadway and preparation method thereof. The guniting material comprises solid raw materials and water, wherein the solid raw materials comprise, by weight, 10 parts of cement, 10-15 parts of river sand, 5-10 parts of fly ash, 12-18 parts of coal cinder and 2-8 parts of short fibers. The preparation method comprises the following steps: stirring and mixing solid raw materials and water according to a certainratio. The guniting material is high in adhesive force, high in strength, resistant to corrosion, not prone to cracking, long in service life and high in flatness, the guniting material is suitable for surface optimization treatment of coal mine roadways and the preparation process is simple, so that the guniting material is suitable for batch production, materials such as coal ash and coal cinder can be effectively utilized, the manufacturing cost is low, and the economic value is high.

Description

technical field [0001] The invention relates to the technical field of shotcrete materials for coal mine roadways, in particular to a shotcrete material suitable for surface treatment of Carboniferous coal mine roadways and a preparation method thereof. Background technique [0002] Coal resources are currently one of the main natural resources utilized in our country. The types of coal mines in our country are mainly divided into underground coal mines and open-pit coal mines. When the coal seam is far away from the surface, we need to dig a roadway underground to carry out coal mining activities, lead to the underground through the coal mine shaft, and build a roadway at the position of the coal seam for coal mining and transportation. [0003] The vast majority of coal mines in my country are underground coal mines. During the mining process, the construction of shafts and underground coal mine roadways is a necessary condition to ensure the safety of workers and the norm...

Claims

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Application Information

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IPC IPC(8): C04B28/00
CPCC04B28/00C04B2111/00508C04B18/08C04B14/06C04B18/10C04B16/0675
Inventor 冯晶陈琳汪俊张益欣常雅
Owner 陕西拉发纪新材料科技有限公司
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