Equipment for heat exchange between solid materials and water
Thread Content
The equipment I’m using currently has insufficient heat exchange capacity and poor sealing performance. It is hoped to be able to handle 100 T/h, reducing materials at 500°C to below 100°C. It doesn’t have to be limited to a specific device; it can also be a certain process, as long as it achieves the desired result. I hope everyone will feel free to share their insights!
A partitioned heat exchanger for heating or cooling powdered solid materials, which consists of four components: the heat exchange core, a feeding device, a discharging device, and a control system. The heat exchange core consists of several arrays of corrugated heat transfer plates; the heating or cooling medium flows within these corrugated plates, while the granular material moves from top to bottom as a solid flow due to its own gravity, passing between the various corrugated heat transfer plates for heat exchange. The initial investment cost and operating cost of this heat exchanger are 50% and 60% lower respectively compared to a converter, and 20% and 90% lower respectively compared to a boiling furnace. The equipment has a high heat transfer coefficient; it requires no dust removal or large rotating components, has very low power consumption, low maintenance costs, and simple operation procedures. Suitable for heating or cooling various powdered and granular materials.
This post was last edited by Final Fantasy Pig on 2011-7-15 at 22:58. Last month, one of our clients requested a bid for the design of a slag cooling machine, intended to cool the hot coal ash coming from the fluidized bed from 800°C to room temperature. Later, through joint discussion, a process was developed. Considering that the fluidized bed operates at a pressure of 3 kilograms, it was decided to design the equipment as a horizontal container, with a partition at the bottom to create an air chamber; air nozzles were installed on this partition to blow cold carbon dioxide gas over the hot solids. The carbon dioxide gas along with some of the hot coal slag are separated using a cyclone separator, and then cooled in a cooler before being stored in a carbon dioxide tank for reuse. However, considering that the fluidized bed is a continuously operating device, and that non-mechanical valves fail to meet the selection requirements, using high-temperature resistant materials for the equipment would not satisfy the requirements of pressure vessel standards GB713 and GB24511; therefore, this bidding was abandoned. . . But in my opinion, this process is feasible if it is used in a pressure-free container.
We currently have 380° powder lumps that need to be cooled through heat exchange to around 50°. I’m not sure whether the process mentioned by my colleague upstairs is feasible; please advise；