Annual Output of 100,000 Square Ceramic Production Line Project (Guangdong, CHINA)

I. Project overview

Date of signing: 2018-08-28

Disposal material: sand washing waste soil

Processing capacity: 100,000 m³/a

Equipment configuration: 1 plug-in rotary kiln, 1 cooling machine, 1 roll granulator, 2 double-shaft mixers

A company in Guangdong Province, the main ceramic products processing and sales, environmental protection products research and development, waste treatment services, sludge treatment services, residue recycling. In order to recycle waste sand washing soil as resources, in August 2018, we ordered a full set of equipment for our company's annual output of 100,000 square of ceramisite production line. In the process of making the plan, the two sides visited the project site and the case site for many times for field exchanges, improved the process according to the actual production, and the data of the final plan was accurate and reliable, meeting the requirements of quality, safety and environmental protection.

The production line adopts the double-barrel plug-in rotary kiln process, which can control the preheating and roasting of materials by controlling the residence time of materials respectively. The rotary kiln can adapt to the firing of ceramic particles of materials with large fluctuations in moisture and composition.

II. Solution

On the basis of traditional construction ceramic preparation, this sludge clay ceramic production line adopts the following technologies and solutions for calcination, tail gas treatment, cooling, kiln sealing and other problems:

1) The plug-in double-barrel rotary kiln can realize the preheating and roasting of materials in different rotary kilns, respectively control their respective speed, change the residence time of materials, and achieve reasonable thermal conditions.

2) The flue gas at the end of the rotary kiln is first dedusted and cooled by the cyclone dust collector, and then passed into the bag dust collector for further purification treatment. The emission concentration of the bag dust collector can reach 30mg/m³ or less.

3) The project uses rice bran as raw fuel. The grain bran is sprayed into the kiln through a single channel burner to meet the calcination of ceramics, which greatly reduces the production cost compared with the use of gas and raw coal.

4) The project uses a single barrel cooling machine. The hot ceramic particles discharged from the kiln head are raised and thrown by the heat exchange device in the cooling machine, and the cold air entering the cooling machine carries out heat exchange. After the ceramic particles are cooled, they enter the storage and transportation system. After the cold air is heated, the hot air enters the kiln as a high temperature secondary hot air to help the combustion and reduce the heat consumption of the system.

5) The sealing of rotary kiln adopts stainless steel fish scale sealing method, which reduces the leakage of external air, and also reduces the unloading of materials, durable, environmental protection and energy saving.

6) Dust collection pipe interfaces are arranged at each transfer point of materials in the whole production line, and the management is divided into zones to avoid dust pollution to the environment.

III. Project site