[Brief Introduction] Drying Zinc containing Sludge Double blade Drying Machine

Zinc hydroxide 8-30%

Iron hydroxide/ferrous 0.5-8%

Acid insoluble substance 0.1-2%

Water 55.0-65.0%

The main source is the sludge generated during the treatment of wastewater from metal surface treatment

Processing capacity [detailed description]

Drying zinc containing sludge double blade dryer

Zinc hydroxide 8-30%

Iron hydroxide/ferrous 0.5-8%

Acid insoluble substance 0.1-2%

Water 55.0-65.0%

The main source is the sludge generated during the treatment of wastewater from metal surface treatment

Processing capacity

According to a working system of 300d/year, 1 shift/day, and 20h/shift, the designed processing capacity is 10000 tons/year (i.e. 34 tons/day).

Process quality requirements

Design requirements for exhaust gas

The exhaust gas treatment system of the reduction equipment should select reasonable exhaust gas treatment measures according to the characteristics of the equipment, especially dust treatment measures. The final exhaust emission height should not be less than 15m to meet the emission standards.

2.1.3.5 Product Quality Standards

1. The moisture content of zinc containing sludge is reduced from 80% to less than 40%;

2. When the moisture content of zinc containing sludge drops from 80% to 40%, the energy consumption of 0.5 MPa fresh steam per ton of sludge should not exceed 0.9 tons of steam per ton of sludge.

2.2 Design Requirements

In this design, due to product suitability. Actively adopt new processes, technologies, and efficient energy-saving equipment, achieve reasonable layout, and reduce the flow of secondary handling materials; The design of the equipment should be based on the principles of advanced, reasonable, economical and practical.

Process design requirements

Design process flow

Select an economically reasonable comprehensive treatment plan based on the above design parameters and process quality requirements for complete process design. During the design process, the following points should be noted:

1. Design requirements for sludge feeding system

(1) Our company's sludge is mainly packaged in ton bags. Please design a reasonable feeding method based on the situation of the attached factory and the principles of saving manpower and clean production on site.

(2) It is necessary to consider the interference of solid impurities in the sludge (such as small screws, cloths, burlap bags, small bricks, etc.) on the feeding system. Please develop specific measures in the plan to address this issue.

2. Design requirements for sludge discharge system

The discharge is planned to be packaged in ton bags. Please elaborate on the process design of product discharge cooling and packaging.

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Contact: Wang Yong Phone:/6797