A kind of cable used in coal mine and its preparation method
A cable and coal mine technology, which is applied in the field of coal mine cables and its preparation, can solve problems such as lack of microbial corrosion resistance
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Embodiment 1
[0034]Example 1: Cable
[0035]Such asfigure 1As shown, the cable for the underground coal mine is internally to the outside, including the conductor core 1, the conductor shield layer 2, the insulating shield layer 3, the microbial anti-etching layer, the armored layer 5, and the outer sheath 6. The conductor shield layer 2 is a non-metallic shield layer made of butyryl rubber, polyethylene, and carbon black, and is uniformly wrapped in the conductor core 1, the insulating shield layer 3 is a kraft paper wrapped in a conductor shield layer 2 outer circumference Form, the microbial anti-etching layer includes two-layer cable nonwoven fabric and a corrosion matrix 4 that is filled between the two-layer cable nonwoven fabric, and the microbial anti-etching layer is wrapped with a wire, and the wire is fixed to the insulation. The shield layer 3 is performed from the outer circumference of the aluminum strip in the outer circumference of the microbial anti-etching layer, and the outer she...
Embodiment 2
[0036]Example 2: Cable Preparation
[0037]The slow-release carrier preparation process in the anti-corrosion matrix of the present embodiment is as follows:
[0038]1) The internal aperture is 90 μm, and 30 g of natural zeolite is pulverized by a porosity of 30% to obtain a zeolite particles having a particle diameter of about 20 mm, then a 120 ml of coconut oil is mixed, and mixed at room temperature, stirring for 2h. , Then placed in an ice water mixture for 30min, filter out of zeolite;
[0039]2) Mix 60 ml of ethyl acetate with 30 wt% ethanol solution, the volume ratio of ethyl acetate and ethanol solution is 1: 1, the ethyl acetate solution is obtained, and the zeolite obtained from step 1) is mixed, heated to 70 At ° C, stirring was stirred for 45 min, and then 1.5 g of Type of hepartine was added, stirred for 2 h, filtered, and dried to obtain a sustained release carrier.
[0040]Preparation of anti-corrosion matrix:
[0041]The sustained release carrier prepared by 30 g of the above metho...
Embodiment 3
[0048]Example 3: Two cable preparation
[0049]The slow-release carrier preparation process in the anti-corrosion matrix of the present embodiment is as follows:
[0050]1) The internal pore size is 100 μm, and the porosity is 31% 20 g of natural zeolite, and the particle size of about 40 mm is obtained, and then 80 ml of coconut oil is mixed and uniform, stirred at room temperature. 2.5 H, then placed in an ice water mixture for 30min, filtered by zeolite;
[0051]2) Mix 40 ml of ethyl acetate with 30% by weight of the ethanol solution, the volume ratio of ethyl acetate and ethanol solution is 1: 1, producing a ethyl acetate solution, and the zeolite obtained from step 1) is mixed, heated to 75 At ° C, stirring was stirred for 40 min, then 1 g of aspartic acid was added, stirred for 2 h, filtered, and dried to obtain a sustained release carrier.
[0052]Preparation of anti-corrosion matrix:
[0053]The sustained release carrier prepared by 20 g of the above method was heated at 60 ° C for 10 min,...
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