A double heat source vertical dryer and a drying system using the dryer

Abstract

The invention relates to the field of a material dryer, in particular to a dual heat source vertical type dryer and a drying system using the same. The dual heat source vertical type dryer comprises a furnace body and material retention rings arranged in the furnace body, wherein the lower part of the furnace body is provided with a hot wind inlet, a microwave conduit is also arranged in the furnace body, the microwave conduit is connected with microwave generators, and the microwave generators are positioned outside the furnace body. Because the furnace body of the dual heat source vertical type dryer is provided with the hot wind inlet, the microwave conduit is also arranged in the furnace body, and the microwave conduit is connected with the microwave generators, material entered into the furnace body firstly exchanges heat with hot wind and is dried from outside to inside when the dryer is in use, and the material primarily dried by the hot wind can be guided by the microwave conduit to the microwave in the furnace body to be heated inside and outside simultaneously, so that the drying time of the hot wind can be greatly shortened, the flowing of the material in the furnace body is accelerated, and finally the purpose of improving the drying efficiency of the vertical type dryer is achieved.

Description

technical field [0001] The invention relates to the field of material dryers, in particular to a dual heat source vertical dryer and a drying system using the dryer. Background technique [0002] Vertical dryer, also known as vertical dryer, is widely used to dry materials in the production process of briquette, cement, chemical fertilizer, etc. It has the characteristics of small footprint, low investment and stable operation. [0003] The current vertical dryer includes a furnace body, the top of the furnace body has a material inlet, the lower part has a material discharge port and a hot air inlet, and the inner wall is provided with a lifting plate. In addition, the furnace body is also provided with a material retaining ring. The exhaust port of the hot air inlet leads into the retaining ring. When working, the hot air is sent into the furnace body through the hot air inlet, and the materials to be dried are fed into the furnace body from the feeding port on the top of...

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Problems solved by technology

[0004] It can be seen from its working principle above that the heat source is one of the most important factors affecting the drying efficiency of the vertical dryer. requirements, and the current vertical dryers use hot air to dry the materials. In this case, in order to meet the drying requirements of the materials as much as possible, the only way to reduce the flow rate of the materials in the furnace is obviously Limits drying efficiency of vertical dryers

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