5results about How to "Avoid coke clogging" patented technology

The invention discloses a garbage incinerator, and relates to the technical field of garbage incineration treatment, the garbage incinerator comprises an incinerator body, a middle arch and a recirculation flue gas spray pipe, the middle arch is arranged in a hearth of the incinerator body and is located among a front arch, a rear arch and a combustion section fire grate, and a first flue gas channel can be formed between the middle arch and the front arch; a second flue gas channel can be formed between the middle arch and the rear arch, so that high-temperature flue gas in a hearth of the incinerator body flows through the first flue gas channel and the second flue gas channel, is converged above the middle arch and then enters the flue; the recirculating smoke spraying pipes are arranged at the bottom of the middle arch and used for spraying low-temperature smoke into a hearth of the incinerator body, at least one set of recirculating smoke spraying pipes face the front side of the middle arch, and at least one set of recirculating smoke spraying pipes face the rear side of the middle arch. The anti-coking middle arch is arranged in the hearth, disturbance of high-temperature flue gas is increased, volatile components are promoted to be mixed with oxygen, and the combustion efficiency is improved.

The utility model provides a kind of high-salt waste liquid pretreatment system and incineration system.The pretreatment system includes sequentially connected feed unit, pretreatment unit, air supply unit and air induction unit;Feed unit includes auxiliary fuel lance and waste liquid lance;Pretreatment unit includes sequentially interconnected combustion chamber and cooling device of burner body;Auxiliary fuel lance, waste liquid lance are connected with burner body respectively;Air supply unit includes air blower, air blower is connected with burner body, combustion chamber respectively;The inlet of air induction unit is connected with the gas outlet of cooling device.The pretreatment system can be based on the coordinated cooperation of feed unit, air supply unit and other units, realize the pre-temperature control combustion of high-salt waste liquid, be conducive to the separation of organic matter and salt in high-salt waste liquid, remove salt in high-salt waste liquid, solve the plugging problem of incineration system, prolong the operation cycle of subsequent device.

The utility model relates to burner technical field, concretely relates to a burner with backfire avoidance structure, including burner main part, the one side fixed connection of burner main part has the cannon barrel, the inside of burner main part is provided with the steady flame disc, and the steady flame disc is fixedly installed with the igniter needle and the spray gun, and the end of igniter needle far away from the steady flame disc and the end of spray gun far away from the steady flame disc can slide and extend out of burner main part. Through the first displacement mechanism cooperation power piece drive steady flame disc, igniter needle and spray gun far away from cannon barrel, quickly evacuate combustion chamber and peripheral high temperature area, avoid backfire flame direct contact igniter needle and oil nozzle, prevent igniter needle electrode oxidation failure, oil nozzle fuel passage coking block, solved the burner combustion chamber and the flow through cavity intercommunication, the cavity residual gas is easy because high temperature backfire when stop using, if fuel spray gun, igniter needle and steady flame disc have not evacuated, can cause igniter needle failure, oil nozzle block technical problem.

The invention relates to a method and system for recycling waste plastics, and the method comprises the steps that S1, solid waste plastics and replacement gas enter a deoxidation device, so that the replacement gas conducts purging deoxidation treatment on the solid waste plastics, deoxidized plastics are obtained, and the deoxidation device comprises a gas stripping functional area and a diffusion functional area which communicate with each other; s2, the deoxidized plastic enters a softening-dechlorination device to be subjected to softening-dechlorination treatment, and chlorine-containing gas and softened dechlorinated plastic are obtained; s3, the softened dechlorinated plastic enters a liquefying device to be subjected to liquefying treatment, and pyrolysis gas and liquid plastic are obtained; s4, enabling the chlorine-containing gas in the step S2 and the pyrolysis gas in the step S3 to enter an alkali washing device for alkali washing treatment; and at least part of the liquid plastic in the step S3 serves as a circulating material to be heated and then returns to the liquefying device to be continuously treated. The present disclosure can significantly reduce the yield of by-products and continuously and stably provide a liquid feed for waste plastic pyrolysis.