Doright Co., Ltd

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Powder and exhaust environmental protection equipm

Harrow dryer

The unique hollow shaft design effectively controls the deflection of the stirring shaft and prolong
Carbon Black Feeder

Carbon black feeder is a new product independently developed by Doright. It is designed to solve the problem of feeding stability of carbon black pelletizer.
Pin tube heat exchanger

The pin-tube heat exchanger has a series of advantages compared with the traditional heat exchangers, like small equipment size, low investment, high heat transfer efficiency, strong self-cleaning ability, and long service life, etc.
Installation and maintenance of pressure pipelines

Installation and maintenance of pressure pipelines
Wet Pelletizer, Dry Pelletizer, Pigment Pelletizer

Wet Pelletizer is mainly used to make powder materials into granular materials
Rotary Dryer

Rotary dryers designed and manufactured by Doright are widely used in carbon black processing to dry wet carbon black particles. Rotary dryers supplied by Doright reaches the capacity of 60000t/a and can meet all current capacity requirement.
Waste Heat Boiler

Waste heat boiler is also called in line boiler. It is normally installed between air preheater and oil preheater in carbon black producing line. It is used for recovering heat of high temperature of carbon black smoke gas (around 700℃-400℃) by produ
Quench Boiler

Quench boiler, located between carbon black reactor and air preheater, could absorb heat of carbon black smoke between 1250℃ and 950℃. It is used to produce steam, which could bear the required steam with power generating boilers. It could also incre
Carbon black feeding pump

Carbon black feeding pump, independently researched and developed by Doright, is a new product of improving feeding stability of carbon black granulator.

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Address：青岛胶州市滨州路668号 No. 668, Binzhou Road, Jiaozhou, Qingdao Tel：0532-82298811 Fax：0532-82298822
E-mail：doright@doright.biz luICP12029219号