Sludge reduction and volume reduction by electroplating sludge drying equipment

Electroplating sludge refers to the "final state substance" after wastewater treatment in the production process of electroplating industry. Due to the different production and treatment processes, the chemical composition of electroplating sludge is complex, which contains a large number of heavy metals such as copper, nickel, chromium, iron, zinc and soluble salts. The emergence of electroplating sludge drying equipment can realize sludge volume reduction and further improve resource reuse.

Electroplating sludge drying equipment can greatly reduce the volume of sludge through drying treatment, thus reducing its storage space. The equipment can dry wet sludge with moisture content of 80%, dry sludge with moisture content of about 10% (specific final moisture content of sludge can be adjusted according to user requirements), and the volume can be reduced to one third to one fifth of the original. The shape and particle size of the dried sludge can also be adjusted according to the requirements. The dried sludge is odorless and pathogen free, which reduces the negative effects and makes the sludge more acceptable. The calorific value of the dried sludge is improved, which can not only replace energy for incineration, but also compost, so as to turn harm into profit and waste into treasure.

The application of electroplating sludge drying equipment in sludge drying field has the advantages of energy saving, environmental protection, practicality and high production efficiency. The equipment adopts automatic control mode, which is simple and convenient to operate and has low labor intensity. It will not produce secondary pollution such as waste gas, waste water and dust when it runs in closed state. Stable drying process, no mechanical collision and safety, can be used for a long time. For enterprises, one-time selective investment will benefit enterprises in the long run.

The electroplating sludge drying equipment produced by Jiaozuo ZJN company adopts the "rotary harrow three-cylinder multiple-loop" drying technology. During the sludge drying process, the sludge is continuously scattered, broken and stirred to speed up the contact area between the sludge and the hot air. At the same time, according to the different moisture content of the sludge, the drying temperature and air volume can be automatically adjusted to improve the sludge drying efficiency, At the same time, it can better control the quality of sludge drying, better retain the original organizational components in the sludge, so as to improve the use value and economic value of sludge.