Split type vibration slag cooler with multiple vibration sources for circulating fluidized bed boiler

Abstract

The invention discloses a split type vibration slag cooler with multiple vibration sources for a circulating fluidized bed boiler, which comprises a supporting structure and a cooling cylinder. The cooling cylinder is arranged on the supporting structure, and the outer wall of the cooling cylinder is provided with a laminated shell; the cooling cylinder consists of a slag-in section and a middle section, and a cooling tube bank is arranged in the cooling cylinder; a removable mesh screen is arranged at an inlet of the slag-in section; an end enclosure is arranged in front of the removable mesh screen, and a slag out interface section is arranged at the outlet of the middle section; and vibration motors are symmetrically arranged on the two sides of the supporting structure. The invention can ensure the long term and stable operation of the slag cooler, and has the advantages of low slag out temperature, small erosion, easy maintenance and low labor intensity for maintenance.

Description

technical field [0001] The invention relates to a multi-vibration source split type vibrating slag cooler for a circulating fluidized bed boiler, which belongs to the field of auxiliary equipment used for circulating fluidized bed boilers. Background technique [0002] Circulating fluidized bed boiler is an environmentally friendly boiler using advanced combustion technology. In recent years, with the rapid development of my country's economy and the increasing demand for electricity, circulating fluidized bed boilers have been rapidly promoted as an energy-saving and environmentally friendly boiler. application. The circulating fluidized bed boiler adopts a high-temperature solid-state continuous slag discharge method. In order to make full use of the heat of boiler slag discharge, various slag coolers have emerged as the times require, including fluidized bed / feng-shui combined type, drum type, spiral type, vibration type and so on. These slag coolers have their own stren...

AI Technical Summary

Problems solved by technology

After the slag enters the cooling cylinder, the distribution is uneven, and the local wear of the cooling pipe row is large

The cooling water of the slag cooler adopts a single circuit. Due to the low pressure of desalted water in the power plant, the cooling of the pipe row is insufficient, and the distortion is serious

During the normal operation of the circulating fluidized bed boiler, there are often large pieces of lining falling off or coke on the bed surface. After these large pieces of slag enter the cylinder, they are stuck between the tube rows and cannot be discharged, causing the slag cooler to Unable to discharge slag normally

After the slag cooler is out of service, it is necessary to dismantle the cylinder as a whole to clean the coke in the cylinder or to repair leaks, and the maintenance labor intensity is very high

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