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Silicon carbide biscuit drying device and application

A silicon carbide and drying device technology, applied in the direction of drying gas arrangement, drying solid materials, drying chamber/container, etc., can solve the problems of high energy consumption, low drying speed, uncontrollable temperature, etc., and achieve high drying efficiency and improved The effect of efficiency and simple structure

Pending Publication Date: 2020-04-10
SHAANXI UDC MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems existing in the prior art, the object of the present invention is to provide a silicon carbide green body drying device and its application to solve the problems of low drying speed, uncontrollable temperature, uncontrollable external dimensions and high energy consumption of the existing silicon carbide green body. technical problem

Method used

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  • Silicon carbide biscuit drying device and application
  • Silicon carbide biscuit drying device and application
  • Silicon carbide biscuit drying device and application

Examples

Experimental program
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Effect test

Embodiment 1

[0047] This embodiment provides a silicon carbide green body drying device, which is used to dry the silicon carbide green body placed in the drying chamber 1, including a heat pump unit 2, a circulating air duct unit 3 and a fan unit 4, and the heat pump unit 2 is arranged in the drying chamber. Above the outside of the chamber 1, the circulating air duct unit 3 and the fan unit 4 are vertically arranged in the drying chamber 1;

[0048] The heat pump unit 2 is used to convert the hot and humid air flowing through the silicon carbide blank in the drying chamber 1 into liquid, and then release heat to heat the air entering the drying chamber 1 again. The circulating air duct unit 3 is used to convert the gas in the drying chamber 1 divert;

[0049]The circulating air duct unit 3 includes a baffle plate 32 horizontally arranged in the drying chamber 1, which divides the drying chamber 1 into a first air duct 34 and a second air duct 31 with opposite airflow directions. One end ...

Embodiment 2

[0061] This embodiment also provides a silicon carbide green body drying device for drying the silicon carbide green body. Place the silicon carbide green body on the tooling rack for drying.

[0062] Biscuit type: roller rod and square beam, thickness 4-10mm; outer aperture size Φ25-100mm, length 0-5mm, drying temperature 25°C-45°C, drying time 1-6h. The drying time and temperature are selected according to the outer diameter and thickness of different silicon carbide blanks.

[0063] For example, dry at 25°C for 1 hour, heat at 30°C for 3 hours, heat at 35°C for 4 hours, heat at 40°C for 8 hours, and heat at 45°C for 6 hours to complete drying.

[0064] Assuming that the whole system is 36m3 according to the drying room drying material 3 , the total material is 600kg / time, the drying time is 24 hours, the initial temperature of the drying room environment: -10°C-25°C, the drying temperature requirement: 40°C-75°C, the drying dehydration rate: 29-35%.

[0065] Therefore, t...

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Abstract

The invention discloses a silicon carbide biscuit drying device and an application. The silicon carbide biscuit drying device is used for drying silicon carbide biscuits placed in a drying chamber. The device comprises a heat pump unit, a circulating air duct unit and a draught fan unit, wherein the heat pump unit is arranged above the exterior of the drying chamber, the circulating air duct unitand the draught fan unit are perpendicularly arranged in the drying chamber, the heat pump unit is used for converting damp and hot air flowing through the silicon carbide biscuit in the drying chamber into liquid and then releasing heat to heat the air entering the drying chamber again, the circulating air duct unit is used for shunting the air in the drying chamber, and the fan unit is used fordriving airflow to dry the silicon carbide biscuit. The air flow sequentially passes through the fan unit, the circulating air duct unit and the heat pump unit and then returns to the fan unit to formthe circulating hot air to dry the silicon carbide biscuit. The device is simple in structure, energy is saved, rapid, low-energy-consumption and high-quality drying is achieved, the size is accurate, and the shape and roundness are controllable, the biscuit density is high, and overall uniformity of the product is high.

Description

technical field [0001] The invention belongs to the field of drying new materials, and in particular relates to a silicon carbide biscuit drying device and its application. Background technique [0002] my country's extrusion reaction sintered silicon carbide ceramics has played an important role in more and more fields. There are three molding modes for reaction sintered silicon carbide ceramics, which are divided into extrusion molding, grouting molding and compression molding. The cost of extrusion molding is low. , The output is large, so extrusion molding is often used in the industry. The commonly used types of reaction sintered silicon carbide ceramics are divided into roller rod type, square beam type and plate type. The drying method is an important link in the production process of extrusion molding reaction sintered silicon carbide. [0003] At present, the drying methods in the industry include microwave drying and electric heating drying. Electric heating dryin...

Claims

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Application Information

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IPC IPC(8): F26B9/06F26B21/08F26B21/04F26B25/18B28B11/24
CPCF26B9/066F26B21/086F26B21/002F26B21/04F26B25/185B28B11/248
Inventor 姚民利刘炜刘飞赵金王兴龙
Owner SHAANXI UDC MATERIALS TECH CO LTD
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