Pretreatment process of rubber-containing waste barrels

Abstract

The invention relates to a pretreatment process of waste rubber barrels, which comprises the following steps: (1) removing the covers from the waste rubber barrels and waiting for disposal; (2) sending the waste glue barrels into a liquid nitrogen box for freezing after removing the covers. Low-temperature embrittlement of the waste rubber in the barrel; (3) Separating the low-temperature embrittled waste rubber from the waste barrel, and collecting the waste rubber centrally for disposal; (4) Waste barrel disposal process; (5) Waste rubber disposal process. Compared with the prior art, the process of the present invention completely solves the problem that waste rubber-containing barrels are difficult to break and dispose of. Compared with the prior art, the process of the present invention is safe and reliable, with simple equipment, strong operability and good separation effect. And there is no secondary pollution, and the separated waste rubber and waste barrels are harmless and recyclable and have a wide range of uses.

Description

technical field [0001] The invention relates to the technical field of processing waste rubber barrels, in particular to a pretreatment process for waste rubber barrels. Background technique [0002] Glue-containing waste barrels collectively refer to plastic barrels or iron barrels that need to be disposed of legally and compliantly after use, such as sealant, structural glue, glass glue, and instant glue. Among them, the sealant is an adhesive used to fill the gap in the configuration to play a sealing role. It is usually based on dry or non-drying viscous substances such as asphalt, natural resin or synthetic resin, natural rubber or synthetic rubber. , with inert fillers such as talcum powder, clay, carbon black, titanium dioxide and asbestos, and then added plasticizers, solvents, curing agents, accelerators, etc.; the structural adhesive has high strength, high shear strength, and can withstand large Load resistance, aging resistance, fatigue resistance, corrosion res...

AI Technical Summary

Problems solved by technology

[0004] In order to facilitate the downstream units not to block the suction port of the pump during use, many rubber-filled barrels are not lined. After use, a small amount or part of the glue will remain at the bottom of the barrel, or the glue in the barrel is not timely After use, the time to open the lid is too long, which leads to the scrapping of the rubber in the barrel. The above reasons all lead to the generation of waste barrels containing glue, and the amount of waste produced is large.

[0005] The above-mentioned rubber-containing waste barrels are now clearly defined as hazardous waste, which belongs to HW49 waste packaging containers, and the hazardous waste code is 900-041-49; theoretically, it can be disposed of by cleaning with solvents and water, reusing, crushing and incinerating, etc. However, because it contains residual waste glue with strong adhesion, neither solvent nor water can effectively clean it; The machine cannot work normally, and the difficulty of disposal is greatly increased. At present, the waste production units and disposal units of waste rubber barrels have no ideal disposal methods, and some are even at a loss.