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A preparation method of flame retardant wire and cable pellets
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A technology for wires, cables and pellets, applied in the field of solid waste disposal, can solve problems such as incineration pollution, landfill occupation, and groundwater pollution.
Active Publication Date: 2021-05-18
YANGTZE NORMAL UNIVERSITY
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[0007] Aiming at the deficiencies of the above-mentioned prior art, the present invention proposes a method for preparing flame-retardant wire and cable pellets, using coal gangue and waste dust-removing cloth bags as raw materials to prepare flame-retardant wire and cable pellets, and solving the problem of coal gangue and waste dust-removing cloth bags being landfilled. Land occupation, leachate pollutes groundwater, incineration pollutes the atmosphere, etc.
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Embodiment 1
[0027] Embodiment 1: A method for preparing flame-retardant wire and cable pellets, comprising the following steps:
[0030] Step 3, taking the mixture obtained in step 2 and extruding and granulating to obtain flame-retardant wire and cable pellets;
[0031] Wherein the step of preparing modified carbon ash in step 1 is:
[0032] Step 1.1, pulverizing the coal gangue and passing through a 100-mesh sieve, and fully burning the coal gangue pellets obtained after the screening to obtain coal gangue ash;
[0033] Step 1.2, crush the waste dust bag and pass it through a 100-mesh sieve, put the waste dust bag pellets obtained after sieving into a tube furnac...
Embodiment 2
[0049] Embodiment 2: A method for preparing flame-retardant wire and cable pellets, comprising the following steps:
[0052] Step 3, taking the mixture obtained in step 2 and extruding and granulating to obtain flame-retardant wire and cable pellets;
[0053] Wherein the step of preparing modified carbon ash in step 1 is:
[0054] Step 1.1, pulverizing the coal gangue and passing through a 100-mesh sieve, and fully burning the coal gangue pellets obtained after the screening to obtain coal gangue ash;
[0055] Step 1.2, crush the waste dust-removing bag and pass it through a 100-mesh sieve, put the waste dust-removing bag pellets obtained after sieving ...
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technical field [0001] The invention belongs to the technical field of solidwaste disposal, and in particular relates to a method for preparing flame-retardant wire and cable pellets. Background technique [0002] Coal gangue is the solid waste discharged during the coal mining process and coal washing process. It is a black-gray rock with low carbon content and harder than coal that is associated with the coal seam during the coal formation process. The gangue extracted from the roof, floor and interlayer during the mining process and the gangue picked out during the coal washing process. Its main component is Al 2 o 3 , SiO 2 , also contains varying amounts of Fe 2 o 3 , CaO, MgO, Na 2 O, K 2 O.P 2 o 5 , SO 3 And trace rare elements (gallium, vanadium, titanium, cobalt). Over the years, China has accumulated about 1000Mt of coal gangue, which not only occupies land, but also pollutes the air by spontaneous combustion, causing fires, and causing hazards such as ...
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