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Sludge dewatering and drying line

Sludge dewatering and drying line

Description

The daily output of sludge is increasing, which makes more and more equipment for sludge drying. Protecting the environment is also everyone's obligation, and the prospect of sludge drying has ushered in a wide ocean. The problem of sludge disposal and development

Sludge dewatering and drying line

product manual:

1. The product operation has the characteristics of environmental protection, energy saving and no pollutant discharge.

2. Applicable to municipal, industrial (electroplating, pharmaceutical, etc.), sludge drying and emission reduction in food and other industries.

The daily output of sludge is increasing, which makes more and more equipment for sludge drying. Protecting the environment is also everyone's obligation, and the prospect of sludge drying has ushered in a wide ocean. Increasingly, people are paying attention to the disposal and development of sludge. The sludge drying treatment makes it possible to use sludge for agricultural use, use as fuel, incineration, and even to reduce landfill sites.

Some technical characteristics about sludge drying

1. It can fully realize "reduction, stabilization, harmlessness and recycling" of sludge, and sludge particles can be used as fertilizer, fuel, incineration, building materials, biofuels, landfill soil, land use Wait.

2. The continuous mesh belt drying mode is adopted, which is suitable for various types of sludge drying systems (including sludge with large sand content) and has a long service life.

3. The 80% water content mud cake can be dried into 10% water content sludge granules; the sludge reduction capacity is 1 / 4-1 / 5, and the heat value of sludge after drying of urban sludge can reach 3000kcal / kg.

4. The patented technology of sludge extrusion molding and crushing molding adopts different paving modes according to different solid content of sludge.

5. Low temperature (40-75 ℃) fully enclosed drying process, no tail gas emission and no odor treatment system; low temperature drying can fully avoid the volatilization of different types of organic substances in the sludge and the volatilization of malodorous gases (chain alkanes) The temperature of volatilization with aromatic hydrocarbons is 100-300 ℃. The temperature of volatilization of naphthenes is mainly 250-300 ℃. The temperature of volatilization of nitrogen compounds, amines and oximes is mainly 200-300 ℃. Alcohols, ethers The volatilization temperature of ketones, fatty ketones, amides, nitriles, etc. are all above 300 ° C. In addition, the volatilization temperature of aldehydes and anilines is mainly 150 ° C, and the volatilization temperature of lipids is 150-250 ° C).

6. The entire drying process can be carried out in a closed environment, and no gas will be discharged into the external environment, which will not cause secondary environmental pollution; no pollutants are discharged during the drying process, and the sanitary conditions in the drying workshop are good; centralized water is used. Cooling mode, good cooling effect, excellent workshop working temperature.

7. The system is safe to operate, there is no hidden danger of explosion, and no nitrogen flushing is required. The oxygen content of the sludge drying process is <12%, the="" dust="" concentration="" is=""><60g m3,="" and="" the="" particle="" temperature="" is=""><70 °="" c.="" air="" velocity="" &="" lt;="" 2="" m="">

8. The transmission speed of the mesh belt is controlled by frequency conversion, and the moisture content of the sludge discharge can be adjusted (10-30%) to meet the requirements of various types of processes.

9. The use of heat pump dehumidification technology saves more than 40% of energy and consumes about 0.3 ~ 0.4kw.h per 1kg.H20; traditional sludge drying equipment 1kg.H20 requires 1kw.h of energy, in addition to power and cooling Water, medicaments, etc .; Using the trough-peak power mode can save more than 60% of energy.

10. The equipment covers a small area and is easy to install; the equipment covers an area of ​​about 3.5m2 for every 1000kg of water evaporated.

11. The daily processing capacity of a single drying line can reach 45 tons (80% moisture content mud cake), and the daily moisture content of 55% mud cake can reach 140 tons, which can be suitable for sludge dispersion or centralized treatment mode. Reduce the volume and volume of sludge biscuit treatment, save sludge transportation costs (according to furniture dryers on the road, the transportation cost per ton of sludge is about 100 yuan or more) and reduce environmental pollution during transportation


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