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DZL Series Coal Fired Steam Boiler Introduction

 DZL series coal fired boiler adopts single return thread tube, arched tube plate and flue, so that the pot shell is changed from a quasi-steel body to a quasi-elastic body, preventing the crack of tube plate due to high temperature. The reasonable design of the circulation furnace prevents the bottom of the pot shell from heating and eliminates the bottom of the pot shell drum. The use of backwater ejection improves the reliability of water circulation, overcomes the ash accumulation of water wall pipe, and ensures the reliability of combustion equipment, thus ensuring the normal operation of boiler.



The coal fired steam boiler has good smoke and dust removal, adopts the flue gas penetration separation, the original exhaust dust concentration of the boiler is lower than 200mg/Nm3, the flue gas blackness is lower than Ringelmann I class. The optimum design of the furnace can reduce the furnace body and the cost of the boiler room by 30%. The combustion effect is good, can automatically coal, automatic slag removal, reduce the labor intensity of the company furnace man. DZL type quick installation boiler is a horizontal three - trip chain fire tube grate boiler, burning medium bituminous coal. The boiler body is arranged longitudinally for a single boiler barrel, and the convection heating surface is formed by the threaded firework pipe inside the boiler barrel, and the radiation heating surface of the furnace is formed by the boiler barrel and the water cooling walls on both sides. The combustion equipment adopts light chain grate; The whole fast installation form leaves the factory. Electric control realizes stepless speed regulation, limit parameter alarm and interlock protection.

The coal fired boiler is equipped with advanced processing equipment and exquisite technology, and the key processing technologies, such as steel plate blanking, ring circle and tube-plate drilling, etc. for guaranteeing boiler quality are all adopted by advanced numerical control processing technology to reduce assembly stress and extend boiler service life. The boiler longitudinal and circular seam welding adopt the advanced submerged arc automatic welding technology to ensure the welding quality. The arch pipe plate and threaded pipe structure are adopted to increase heat conduction and solve the cracking problem of the back pipe plate completely. Advanced numerical control technology is used for steel pipe cutting, threaded pipe pressing and convection pipe machining.



Zozen Boilers furnace strict quality supervision and inspection, safety without care all longitudinal and circumferential seam welding all carry on 100% ray inspection, eliminate unqualified weld. The chain grate is manufactured by our factory, and it runs for 72 hours before leaving the factory to ensure that the tightness of the grate is moderate and not deviated. DZL series coal fired boiler has abundant auxiliary configuration feeder: feeder, uniform feeding, prevent tempering. Speed regulator: according to biomass combustion rate, design reasonable speed, ensure fuel burn out. Access door: reasonable manhole and hand hole layout, convenient maintenance; The access door is arranged in the furnace chamber for convenient maintenance. Welcome to consult purchasing, we will serve you wholeheartedly.

E-mail us: sunhui@zozen.com


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