Pre-treatment process for glue-containing waste barrel

Abstract

The invention relates to a pre-treatment process for a glue-containing waste barrel. The pre-treatment process comprises the following steps of (1) removing a cover from the glue-containing waste barrel for waiting for treatment; (2) feeding the glue-containing waste barrel without the cover into a liquid nitrogen tank to be frozen so that waste glue in the barrel is embritted at a low temperature; (3) separating the waste glue which is embrittled at the low temperature from the waste barrel, and collecting the waste glue in a concentrated manner for waiting for treatment; (4) conducting a waste barrel treatment process; and (5) conducting a waste glue treatment process. Compared with the prior art, the process completely solves the problem that the glue-containing waste barrel is difficult to break and difficult to handle. Compared with the prior art, the process is safe and reliable, the device is simple, the operability is strong, the separation effect is good, no secondary pollution occurs, and the waste glue and the waste barrel obtained after separation are harmless and resourceful.

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.