Views: 6397 Author: Site Editor Publish Time: 2018-05-15 Origin: Site
I. Project overview
Project address: Ningbo, Zhejiang
Time: 2018-05-25
Product name: sludge ceramide production line
Production scale: Annual output of 100,000 square sludge ceramide
Service scope: from raw material storage and transportation, batching, mixing, granulation, calcination, cooling to finished product storage and transportation system, environmental dust collection system, exhaust dust removal and desulfurization system, electrical automation control system process design, plant planning, equipment supply, equipment installation and commissioning, after-sales training and other one-stop technical services.
II. Project description
In order to increase the production of ceramic particles and improve the original production equipment dirty and bad problem, a company in Ningbo began to inspect and screen equipment manufacturers from the beginning of 2017. After more than half a year of investigation and many in-depth exchanges, it was determined that Zheng Mine was the supplier of the whole production line. In the process of inspection and communication, customers were convinced by our company's professional spirit and corporate culture of "virtue in advance, benefit after people". Both sides have been to the project site and case site for field exchanges, and have improved the process according to the actual requirements of the owner for many times. The overall design of this production line meets the national environmental protection requirements, and many of the domestic advanced energy-saving improvement equipment is used in the design, which makes the overall operating cost of the entire production line decrease by about 20%.
The design of the factory area of the entire production line insists on zoning, so that the dust and pollution of the production line can be effectively treated, and the purpose of the environmentally friendly ceramic factory can be truly achieved.
At present, after the installation and commissioning of the project, the operation is in good condition, showing multiple advantages such as high stability, high efficiency, high quality, high environmental protection and easy management. This production line is not only a successful practice of Ningbo Haiyuan to enhance production capacity and improve the production environment, but also a model of corporate values and deep cooperation between the two sides, which has effectively promoted the green and sustainable development of the ceramic industry.
III. Process flow
The main raw materials for the production of sludge ceramide are sludge, river mud, clay and so on.
The production process of ceramide in this production line is: raw material batching → aging → raw material feeding → raw material stirring → granulation → shaping and screening → calcination → cooling → screening → storage.
The sludge and clay sent from the factory are pre-mixed by batching, and then the mixed material goes into the Chenhua warehouse for aging storage. The aged qualified material is fed by the forklift to the box feeder, which feeds the material to the belt conveyor and then transmits it to the double-shaft mixer for mixing through the belt conveyor. After the two-shaft mixer, the material is transported to the roller granulator for extruding granulation. The finished raw material ball is sifted through the shaping screen, and the unqualified ceramic particles below 5mm are sifted out by the shaping screen. The qualified ceramic particles are sent to the feeding pipe at the top of the kiln tail and enter the rotary kiln. The double gate valve is set at the upper end of the feeding pipe to lock the air, so that there will be no gas overflow when the material enters the kiln tail, and the unqualified material is screened down.
Raw material particles in the rotary kiln, with the rotation of the rotary kiln, gradually move to the direction of the kiln head, in the firing zone 1050℃~1200℃ temperature, calcined into pottery particles. Then it enters the vertical cooling machine for cooling and discharges from the discharge end. The cold air from the outside is forced to blow into the cooling machine through the fan, and the heat exchange is reversed with the hot ceramic particles. After being heated, the cold air enters the kiln as a high temperature secondary hot air, which significantly reduces the heat consumption of the system. Rotary kiln is divided into two sections, drying section and roasting section, the speed of each section can be adjusted, and the plug-in part is made of stainless steel fish scale sealing device.
At the end of the rotary kiln, air cooler is used to cool the high-temperature flue gas from about 250~300℃ to about 100~120℃, and then the cooled flue gas is passed into the bag dust collector for further purification treatment of the kiln tail exhaust gas.
The emission concentration of the bag dust collector can reach 30mg/m3 or less to achieve standard discharge and clean production. The flue gas after purification is passed into the desulfurization tower for desulfurization treatment, and the flue gas after desulfurization treatment is directly discharged by the fan to the chimney.
Rice husks bought from the market are generally crushed and transported to the factory, where they are packed in uniform woven bags. After the husk is poured into the upper hopper, the husk is lifted into the husk bin by a bucket elevator. The rice husk in the rice husk bin is fed to the single channel burner with the help of the speed regulating feed set under the bin. At the same time, the primary fan provides the external air to the single channel burner as the combustion air, and the rice husk is sprayed into the kiln through the single channel burner point.
The ceramic particles from the cooling machine are lifted to the storage yard.
IV. Project site drawing
