Rotary kiln device for preparing lightweight aggregate from solid waste for simulation experiment

Abstract

The invention discloses a rotary kiln device for preparing lightweight aggregate from solid waste for a simulation experiment. The rotary kiln device comprises a rotary kiln system and a temperature and pressure measurement and control system arranged in the rotary kiln system, and the head and the tail of the rotary kiln system are respectively connected with a burner system and a flue gas purification system; the rotary kiln system comprises a rotary kiln cylinder, a kiln head cover and a kiln tail cover, wherein the kiln head cover and the kiln tail cover are correspondingly connected to the head end and the tail end of the rotary kiln cylinder in a sealed manner correspondingly, and a transmission device is connected to the lower side of the rotary kiln cylinder; the temperature and pressure measurement and control system comprises a thermocouple and a pressure transmitter; the burner system comprises a gas gasification furnace with an outlet connected with a burner, and the burner penetrates through the kiln head cover and extends into the rotary kiln cylinder; and the flue gas purification system comprises a dust removal induced draft fan, and the dust removal induced draft fan is connected with the kiln tail cover. According to the rotary kiln device, the transmission device is arranged to drive the rotary kiln cylinder to rotate, dynamic movement of materials in the actual roasting process is simulated, the temperature and pressure measurement and control system is arranged for real-time monitoring, and the real reliability of simulation experiment results is improved.

Description

technical field [0001] The invention belongs to the technical field of artificial lightweight aggregates for building materials, and in particular relates to a rotary kiln device for preparing lightweight aggregates from solid waste for simulation experiments. Background technique [0002] At present, the national industrial policy strongly encourages and supports the lightweight aggregate industry. Using solid waste to replace traditional clay or shale raw materials to prepare lightweight aggregate not only solves the bottleneck problem of traditional raw materials destroying grain fields and vegetation, and unsustainable industry development, but also realizes the comprehensive utilization of solid waste resources and the environmental impact of emissions And other issues. Rotary kiln roasting is a common technical method for the production and preparation of lightweight aggregates. However, due to the complexity of solid waste types and components, the process parameters...

AI Technical Summary

Problems solved by technology

Rotary kiln roasting is a common technical method for the production and preparation of lightweight aggregates. However, due to the complexity of solid waste types and components, the process parameters of different solid wastes or different raw materials for the production of lightweight aggregates vary greatly. There are often no accurate and reliable process parameters to follow in project engineering design and actual production, which greatly affects the development of comprehensive utilization of solid waste to prepare lightweight aggregate

[0003] The commonly used laboratory lightweight aggregate preparation method is to use the muffle furnace to roast. Because the roasting process of the muffle furnace and the rotary kiln is quite different, this method cannot reasonably simulate the actual production of the rotary kiln.

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