Method for recovering base materials in classification by thermally cracking organic polymer mixtures and device thereof

Abstract

A method for recovering base materials in classification by thermally cracking organic polymer mixtures and a device thereof; the device mainly comprises a reaction furnace, a reactant transmission fixing frame, a water-gas leading-in device, a reaction furnace waste gas outlet, a reaction furnace pressure control meter, a movable reaction frame, an automatic gas expansion device, a safe discharging device, a waste gas condensing and recovering device, a condensing compression tube, a condensing spraying device and a waste gas treating device, etc.; the method mainly uses molten inorganic salt to thermally crack organic polymers to separate base materials in the mixed high polymer materials easily, so as to classify easily, obtain the base materials with a large area (volume) and improve reuse capacity without breaking characters of the original base materials, moreover, the method can obtain the purposes of reducing energy and carbon consumption and preventing pollution, and providing a method for treating waste of organic polymers, a base materials classifying method and a device thereof.

Description

technical field [0001] The invention relates to a method and device for thermally cracking organic polymer mixtures to classify and recycle substrates, in particular to a method for the treatment, recycling and reuse of organic polymer mixtures and the substrate and organic materials in organic polymer hybrid materials. Polymer separation technology allows both recycling and environmental protection to be taken into account, and achieves the goal of energy saving and carbon reduction by creating the highest reuse value of resource recovery. Background technique [0002] Organic polymer materials include plastics, rubber, fibers, adhesives, coatings, etc., which are widely used in different fields. In order to achieve different functional and composite combinations, they are widely used in combination with a large number of substrates, such as: metal The combined application of fiber, glass fiber, carbon fiber, metal, glass, ceramics, etc. makes the recycling and reuse of rel...

AI Technical Summary

Problems solved by technology

[0006] 1. Under actual operation verification, the amount of gas produced by pyrolysis will increase with the increase of temperature. When the sealing is insufficient and oxygen invades, it is easy to cause combustion, fire and gas explosion, and the carbon ash is easy to be discharged with the exhaust gas.

[0007] There are risks in the operation, and it is necessary to establish an oxygen-isolated operating environment

[0008] 2. After the carbon slag floats out, it will gather together. When the amount is large, it will form a blocky film and prevent the exhaust gas from being discharged. When the reactant is taken out, the gas will easily be ejected, which will affect the operation safety. The carbon slag floating device will it is necessary

[0009] 3. When the exhaust gas is discharged by the induction device, the effect of exhaust gas discharge is limited and the speed is slow, and it will cause air (oxygen) intrusion under negative pressure, resulting in system instability

[0010] 4. The use of oxygen-increased combustion devices needs to process organic gases. Due to the complexity of substances with different ignition points and insufficient purity, more energy supplements are required, which increases processing costs.

[0011] 5. In a sealed environment, because the thermal cracking reaction is a curve reaction, the gas production varies greatly and the pressure fluctuates greatly. It is difficult to control the pressure balance and the operating system is difficult.

[0012] Therefore, according to the above-mentioned existing technologies, there are still many unsatisfactory applications for the treatment of organic polymer hybrid materials. How to effectively apply thermal decomposition technology is a very important part, and it has greater responsibility and obligation for environmental protection.

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