production of high performance lightweight aggregate from solid wastes such as fly ash, sludge, slud business arer hengyuan recycling technology co., ltd-尊龙登录

production of ceramsite from solid wastes such as fly ash, sludge, sludge, tailings and red mud
1. the technology of making ceramsite from fly ash - the amount of fly ash is more than 90%;
2. technology of ceramsite production by sludge cooperating with solid waste: sludge addition amount can reach 30% (dry basis)
3. technology of preparing ceramsite from tailings - the amount of tailings can reach (depending on the nature of tailings)
invention patent no.: zl201310564630.7
since 2010, the company has cooperated with rtal (huantai) co., ltd. to develop waterfall rotary kiln technology, put forward the collaborative production technology of light aggregate by sludge and industrial solid waste, and improved and innovated the production process to ensure the production of ceramsite products in line with national standards. the new technology is one of the most cutting-edge technologies in ceramsite production industry in china at present, which has six characteristics: large amount of sludge, high yield and low energy consumption, electronic control automation, waste heat reuse, odor treatment of flue gas, small investment and so on.
technological superiority
1. large amount of solid waste shall be added according to the local solid waste situation
2. realize the real utilization of waste resources, which can be widely applied to the thorough treatment of tailings, coal gangue, fly ash, red mud, sludge, sludge, engineering waste soil and industrial waste residue
3. the technology of "low temperature drying and high temperature roasting" is adopted to solve the problem of low strength and easy crushing of raw meal balls; the temperature of three leaf kiln can reach 1200 ℃, which can treat different solid wastes and hazardous wastes, eliminate bacteria and solidify heavy metals
4. fully automatic flame monitoring system and automatic temperature control technology in the kiln are realized
5. dual fuel channel burner can realize instantaneous fuel switching
6. online automatic adjustment technology of formula can meet the needs of different products
production line environmental protection measures
1. in terms of incineration management, the flue gas can be controlled to stay in the combustion chamber for more than 2 s above 850 ° so that the dioxin can be completely decomposed;
2. in terms of cooling setting, the flue gas from the kiln tail is rapidly quenched from 900 ° to below 350 ° for less than 2s, avoiding the formation temperature range of dioxin;
3. activated carbon adsorption: after bag dedusting, it enters into the spray equipment after being adsorbed by activated carbon, and adsorbs a small amount of residual dioxin.
4. the whole process of production is closed without peculiar smell, and the comprehensive treatment of flue gas odor
production line energy saving measures
1. select production equipment with superior performance, stability and reliability to meet the energy saving purpose of production line
① high efficiency core roasting equipment - waterfall rotary kiln (patent no.: zl 2013 10564729.7). this equipment is an efficient roasting equipment improved by our company on the basis of introducing british three leaf rotary kiln. the equipment has been successfully and stably operated in the uk for many years, and it is favored by more and more chinese users because of its efficient performance, small size, less land occupation and investment saving advantages.
② in the material mixing section, the vertical turbulent mixer (patent no.: zl 2010 102011175.0), which is a famous brand product in shandong province with many independent intellectual property rights, is adopted. the equipment completely overcomes the problem of uneven mixing of viscous materials. once it is published, it is appraised as "international leading" by the provincial department of science and technology. after entering the mixer, the viscous sludge is dispersed and mixed by the high-speed rotating mixing blade, and the mixing uniformity can reach 99.8% in 90 seconds, which is far higher than other mixing equipment.
2. production line waste heat recycling
in order to ensure the realization of the environmental protection goal, the flue gas temperature at the kiln end of the production line is designed to be above 850 ℃, and in order to achieve the purpose of energy conservation, a heat exchanger is set at the kiln end, and the clean air after heat exchange is used in the drying section of raw meal ball, so that the drying section does not need to be provided with additional external heat source supply, fully realizing the recycling of waste heat and reducing energy consumption.
3. all equipment motors shall be energy-saving motors to meet the energy-saving needs of the production line.
4. in terms of automatic control of production line
implement centralized operation control and on-line monitoring and alarm system for the production line, that is: realize automatic sequence start / stop control for the production process through the automatic control system; conduct real-time monitoring for the production process and equipment operation status, so as to ensure the operation safety of the process on-line equipment; send alarm prompt to the operator when the production process or equipment is abnormal, so as to ensure the production safety 。

ceramsite technical documents