Omnibearing multi-duct energy-saving hot blast producing furnace

Abstract

An omnibearing multi-duct energy-saving hot blast producing furnace is characterized in that a snakelike fire path is arranged between the upper side of a hearth combustor and a chimney base smoke inlet; snakelike inner ducts A and B coordinated with the curve shape of the snakelike fire path are installed in a furnace body; the furnace body comprises an inner furnace body and an outer furnace body; the hearth combustor, the snakelike fire path and the snakelike inner ducts A and B are all arranged in the inner furnace body; a front room is installed at the outer side of the front main furnace wall of the inner furnace body to form a front room duct; a duct isolating plate is arranged in the front room duct; the air outlet of the front room duct is communicated with the inlet of the snakelike inner duct A; a left side room and a right side room are arranged at the outer sides of the inner furnace wall at the left and the right sides of the inner furnace body to form a left side room duct and a right side room duct which are in symmetrical structure; and side room duct isolating plates are arranged in the left and the right side room ducts. Compared with the prior art, the hot blast producing furnace is reasonable in the arrangement of furnace body fire path duct and absorbs heat in all dimensions and at multiple ducts; the heating area of the duct is large and even without blind angles; the heat recovery is high; the hearth is not easy to burn through and break; and the hot blast producing furnace is long in service life, energy-saving and environment-friendly.

Description

(1) Technical field [0001] The invention relates to a drying furnace design technology for drying articles by using hot air, especially an all-round multi-channel energy-saving hot air generator, which can be used for processing agricultural and sideline products such as tea and edible fungi, as well as food, aquatic products and clothing. Drying of supplies. (two), background technology [0002] At present, there are many types of drying equipment used for drying tea, edible fungi and other agricultural and sideline products, as well as aquatic products, food, clothing and other items, including drying furnaces, hot air stoves, etc. The heat source uses electric furnaces and coal. The basic combustion method and working principle are the same as that of firewood, that is, the heat generated by combustion is used to heat the air duct, and the outside air absorbs heat through the air duct and becomes hot air, which is discharged as the drying (drying) items in the dryer room....

AI Technical Summary

Problems solved by technology

However, the heat recovery utilization rate of many drying furnaces and hot blast stoves currently used is low. For example, in the main tea producing areas of China, traditional tiger stoves are usually used. The stoves are fixed with ordinary bricks or refractory bricks (or use (steel plate processing) atmospheric pressure stoves for heating, and some use fire tube stoves with steel pipes installed in the hearth of the stove. Due to the large space in the hearth of fire tube stoves, the heating of steel fire tubes in various parts is extremely uneven. As a result, the furnace including the fire tube is easy to burn through, the service life is short, and the service life is generally only up to 2 years, which virtually increases a lot of production costs, and the heat recovery rate is still low (with 12 or 16 type furnaces) Drying machine, that is, a fire tube stove used with a drying machine (room) with a leaf area or an area of ​​12-16 square meters as an example, at least 120 kg of fuel per hour), in order to reduce energy consumption, At present, some tea production areas use energy-saving hot air furnaces. Although some progress has been made in energy saving and consumption reduction (60--70 kg of fuel per hour, saving about 50% compared with fire-tube stoves), there are still fire paths. Short, unsatisfactory air duct structure, uneven heating area (there is a heat recovery dead angle), high energy consumption, low utilization rate of heat energy generated by combustion, and the furnace hearth is still easy to burn through and damage, etc.

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