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Flame-retardant conveyor belt and manufacturing process thereof

A conveyor belt and flame retardant technology, applied in the field of flame retardant conveyor belt and its preparation technology, can solve the problems of secondary disasters of life and property, corrosion of equipment and instruments, and obstruction of disaster relief work, etc., achieve good anti-scorch performance, improve Aging resistance and flame retardancy, effect of shortening vulcanization time

Inactive Publication Date: 2019-05-21
青岛环球输送带有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One is to hinder the smooth progress of disaster relief work, causing secondary disasters to life and property, the other is to corrode equipment and instruments, and the third is to cause environmental pollution

Method used

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  • Flame-retardant conveyor belt and manufacturing process thereof
  • Flame-retardant conveyor belt and manufacturing process thereof
  • Flame-retardant conveyor belt and manufacturing process thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0059] Preparation Example 1: (1) According to the proportioning in Table 1, add 10kg red phosphorus and 10kg distilled water to the ball mill, grind 4h under the condition of 300r / min rotating speed, disperse the ground red phosphorus with 10kg distilled water, filter, and The filtrate is centrifuged to obtain ultrafine red phosphorus powder;

[0060] (2) Disperse ultrafine red phosphorus powder into 5kg aluminum nitrate solution with a mass fraction of 5%, add 10kg polyvinylpyrrolidone, ultrasonically disperse for 5min, add 10kg ammonia water while stirring, adjust the pH value of the solution to 8, and control the rotational speed to be 100r / min;

[0061] (3) add 5kg melamine and 1kg ammonium polyphosphate to the solution, stir to form a stable colloidal system;

[0062] (4) Add 5kg polyethylene, 1kg calcium stearate and 10kg zinc borate to the colloidal system, mix evenly, extrude, and granulate.

[0063] The raw material ratio of solid halogen-free flame retardant in th...

preparation example 2

[0066] Preparation Example 2: (1) According to the proportioning in Table 1, 13kg of red phosphorus and 13kg of distilled water were added to the ball mill, and the rotating speed was ground for 4.5h under the condition of 350r / min, and the red phosphorus after the grinding was dispersed with 13kg of distilled water, filtered, Ultrafine red phosphorus powder is obtained after centrifuging the filtrate;

[0067] (2) Disperse ultrafine red phosphorus powder into 8kg aluminum nitrate solution with a mass fraction of 8%, add 15kg polyvinylpyrrolidone, ultrasonically disperse for 8min, add 15kg ammonia water while stirring, adjust the pH value of the solution to 8.5, and control the rotational speed to be 150r / min;

[0068] (3) add 8kg melamine and 3kg ammonium polyphosphate to the solution, stir to form a stable colloidal system;

[0069] (4) 8kg polyethylene, 3kg calcium stearate and 13kg zinc borate were added to the colloidal system, mixed uniformly, extruded, and granulated. ...

preparation example 3

[0070] Preparation Example 3: (1) According to the proportioning in Table 1, 15kg of red phosphorus and 15kg of distilled water were added to the ball mill, and the rotating speed was 400r / min for grinding for 5h, and the red phosphorus after the grinding was dispersed with 15kg of distilled water, filtered, and the The filtrate is centrifuged to obtain ultrafine red phosphorus powder;

[0071] (2) Disperse the ultrafine red phosphorus powder into 10kg of aluminum nitrate solution with a mass fraction of 10%, add 20kg of polyvinylpyrrolidone, ultrasonically disperse for 10min, add 20kg of ammonia water while stirring, adjust the pH value of the solution to 9, and control the rotational speed to be 200r / min;

[0072] (3) add 10kg melamine and 5kg ammonium polyphosphate to the solution, stir to form a stable colloidal system;

[0073] (4) Add 10kg polyethylene, 5kg calcium stearate and 15kg zinc borate to the colloidal system, mix evenly, extrude and granulate.

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Abstract

The invention discloses a flame-retardant conveyor belt and a manufacturing process thereof. The flame-retardant conveyor belt comprises a cover rubber, an intermediate adhesive and a skeleton material, wherein the cover rubber comprises an upper cover rubber and a lower cover rubber, and the skeleton material is a steel wire rope or a flame-retardant polyester fabric. The manufacturing process comprises the following steps: S1, the preparation of the cover rubber: I, the preparation of a composite flame retardant; II, pre-plasticization; III, cold mixing; IV, granulation; S2, the preparationof the intermediate adhesive: (1) stirring and mixing; (2) grinding; (3) de-aeration; S3, impregnation of the skeleton material and plasticization; and S4 extrusion and lamination of the cover rubber.The flame-retardant conveyor belt has the advantages of good flame-retarding effect, low smoke, low toxicity, safety and environmental protection; in addition, the manufacturing process has the advantages of simple process, easy manufacturing, low production cost and high production efficiency.

Description

technical field [0001] The invention relates to the technical field of conveyor belts, and more particularly, to a flame-retardant conveyor belt and a preparation process thereof. Background technique [0002] Rubber conveyor belt is a traditional rubber product with a wide range of uses. It is mainly used for the transfer and transportation of various materials, such as the transportation of underground materials in the mining industry and the loading and unloading of the ground, the loading and unloading of dock materials, and the discharge of slag in industrial and mining enterprises. As early as the early 1950s, my country introduced the conveyor belt technology based on natural (NR) rubber raw materials from the former Soviet Union. After that, with the progress of science and technology and the gradual advancement of modernization in my country, great changes have been made in rubber conveyor belt technology research and product development, and many new materials and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L9/02C08L23/28C08L1/02C08L23/06C08K13/06C08K9/02C08K3/02C08K3/22C08K5/098C08K3/38C08K3/32C08K5/3492C08K5/47C08K5/40C08K7/12C08K7/14C08L27/06C08K5/12B65G15/32B65G15/34
Inventor 李连刚李坤辉
Owner 青岛环球输送带有限公司
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