Halogen-free low-smoke mining plastic grille

By using halogen-free low-fume-mine plastic grille made of polypropylene resin and magnesium hydroxide flame retardant, the corrosion failure and toxic fumes of the mine grille in the mine are solved, and the effects of acid and alkali resistance, moisture resistance and low smoke and non-toxicity are achieved.

CN120441955APending Publication Date: 2025-08-08SHANDONG RUNDE COMPOSITE MATERIALS
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Patent Information

Application Number
CN202510365592.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2025-08-08

AI Technical Summary

Technical Problem

Conventional mining grilles are prone to corrosion and fail in the mine and produce toxic fumes and corrosive gases when burned, which has secondary hazards.

Method used

Polypropylene resin is used as the basic material and magnesium hydroxide flame retardant is added to make a halogen-free low-fume-glue mineral plastic grille, which is made through extrusion, stretching, punching and welding processes.

Benefits of technology

It realizes the maintenance of strength in humid environments, low smoke and non-toxicity during combustion, does not produce acidic corrosive gases, and avoids secondary damage.

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Abstract

The invention belongs to the technical field of geogrid preparation, and particularly relates to a halogen-free low-smoke mining plastic grid. The halogen-free low-smoke mining plastic grille is characterized by being prepared from the following raw materials in parts by mass: 80-90 parts of polypropylene resin and 20-30 parts of a magnesium hydroxide flame retardant. The mining grille has the beneficial effects that the mining grille adopts polypropylene resin as a base material, is acid-base-resistant and moisture-resistant, and can keep the strength for a long time, and the magnesium hydroxide flame retardant is added into the plastic grille, so that the mining grille is low-smoke and non-toxic in a combustion process, does not generate acidic and corrosive gases, and avoids secondary injury to personnel.
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Description

Technical Field

[0001] The invention belongs to the technical field of geogrid preparation, and in particular relates to a halogen-free and low-smoke plastic grid for mining. Background Art

[0002] Conventional mining grilles use metal structures, which are easily corroded and failed in the humid environment of mines. The combustion process of conventional halogen-containing mining flame retardant materials will produce a large amount of smoke and toxic and corrosive hydrogen halide gas, causing secondary hazards. Summary of the Invention

[0003] In order to make up for the deficiencies of the prior art, the present invention provides a halogen-free and low-smoke plastic grid for mining.

[0004] The present invention is achieved through the following technical solutions: A halogen-free and low-smoke plastic grid for mining is characterized in that it is made of the following raw materials in parts by mass: 80-90 parts of polypropylene resin and 20-30 parts of magnesium hydroxide flame retardant.

[0005] Preferably, it is made of the following raw materials in parts by mass: 85 parts of polypropylene resin and 25 parts of magnesium hydroxide flame retardant.

[0006] The beneficial effects of the present invention are as follows: the mining grid uses polypropylene resin as the basic material, which is acid and alkali resistant, moisture resistant, and can maintain strength for a long time; magnesium hydroxide flame retardant is added to the plastic grid, which is low-smoke and non-toxic during combustion, and does not produce acidic or corrosive gases, thereby avoiding secondary damage to personnel. DETAILED DESCRIPTION

[0007] Example 1: 85 kg of polypropylene resin and 25 kg of magnesium hydroxide are mixed, extruded through an extruder, and then stretched, punched, and welded in sequence to form a plastic grid for mining.

[0008] Example 2: 80 kg of polypropylene resin and 20 kg of magnesium hydroxide are mixed, extruded through an extruder, and then stretched, punched, and welded in sequence to form a plastic grid for mining.

[0009] Example 3: 90 kg of polypropylene resin and 30 kg of magnesium hydroxide are mixed, extruded through an extruder, and then stretched, punched, and welded in sequence to form a plastic grid for mining.

[0010] Example 4: 80 kg of polypropylene resin and 30 kg of magnesium hydroxide are mixed, extruded through an extruder, and then stretched, punched, and welded in sequence to form a plastic grid for mining.

[0011] Example 5: 90 kg of polypropylene resin and 20 kg of magnesium hydroxide are mixed, extruded through an extruder, and then stretched, punched, and welded in sequence to form a plastic grid for mining.

Claims

1. A halogen-free, low-smoke plastic grille for mining, characterized in that it is The invention is prepared from the following raw materials in parts by mass: 80-90 parts of polypropylene resin and 20-30 parts of magnesium hydroxide flame retardant.

2. The halogen-free, low-smoke plastic grating for mining according to claim 1 is characterized by: The invention is made of the following raw materials in parts by mass: 85 parts of polypropylene resin and 25 parts of magnesium hydroxide flame retardant.