Exhaust heat recovery type steam slab drying machine with inertial dust collecting function

Abstract

The invention discloses an exhaust heat recovery type steam slab drying machine with the inertial dust collecting function. An upper drying region of the drying machine is connected with an efficient cyclone dedusting exhaust heat recovery device in a tangential manner through an induced draft fan and an inertial dust collecting device, wherein the efficient cyclone dedusting exhaust heat recovery device is formed by stacking a tube bank type heat exchanger and a cyclone dust collector. Dust is discharged through a closed-air aspirator at the cone bottom after rotational flow dedusting. Exhaust communicates with a cone through a rotational flow ascending pipe, penetrates a tube bank after being evenly dispersed and is concentrated by a conical hopper on the upper portion and then exhausted through an exhaust pipe. Blades of an impeller of the induced draft fan are arranged symmetrical about the center of an impeller shaft in the radial direction in a radial manner, and the dust can be cleared up in time through centrifugal force. By the adoption of the exhaust heat recovery type steam slab drying machine with the inertial dust collecting function, drying efficiency is improved, and energy saving and emission reduction are achieved; and more importantly, the disassembly technology of the induced draft fan is improved greatly, so that pressure applied to the shaft shoulder end face of a screw by components similar to a nut component can be eliminated easily when the induced draft fan is disassembled, and the problem that the induced draft fan is locked continuously and automatically and cannot be disassembled easily under the load action due to threaded assembly is solved effectively; and the exhaust heat recovery type steam slab drying machine with the inertial dust collecting function is especially suitable for convenient and fast disassembly of a large-scale fan which is locked in a threaded manner.

Description

technical field [0001] The invention relates to a drying machine, specifically referring to a tail heat recovery type inertial dust-collecting steam plate drying machine which does not accumulate dust in a fan and is convenient for disassembly and maintenance. Background technique [0002] Due to its mature technology, strong adaptability, low energy consumption and high reliability, the steam heating plate dryer has become one of the main preferred equipment for drying materials. The material is conveyed by scraper on the steam heating plate for contact heating drying. Due to the simple structure, extremely low energy consumption, strong processing capacity, and each layer of material is turned over, the quality of the dried product is particularly uniform and reliable. However, the drying process needs to continuously discharge hot and humid tail gas to promote the drying process. Since the exhaust gas is rich in a large amount of tail heat, it is necessary to perform tail...

AI Technical Summary

Problems solved by technology

In the actual assembly of shafts and holes with transmission threads, in order to achieve large load-bearing functions, the size of the threaded shafts and matching nut-like components are relatively large, and it is often easy and convenient to screw in during assembly, and It can realize the automatic and continuous locking of the bearing capacity during use, so it is very reliable, but when it is disassembled, the assembly is often very tight, and disassembly is very difficult. It is particularly important to realize simple and easy disassembly under this condition

Images