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High-temperature-resistant screw conveyor

A screw conveyor, high temperature resistant technology, applied in the direction of packaging, etc., to achieve the effect of lowering the temperature, convenient use and simple structure

Inactive Publication Date: 2012-07-11
河北中科能源有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the many defects that the existing commonly used screw conveyors are not suitable for conveying high-temperature materials, thereby providing a high-temperature-resistant screw conveyor, which is realized by three-stage cooling of the cooling and sealing system, that is, through a solid heat-insulating sealing device The heat insulation and sealing of the conveying materials, and the cooling effect of the screw shaft and the shell of the screw conveyor through the gas cooling device and the circulating liquid cooling device, so as to better operate the screw conveyor and prolong the service life

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0033] 700°C high-temperature bituminous coal particles are sent into the main body of the screw conveyor from the material inlet, and the screw shaft is controlled by the motor to drive the screw blades, and the conveyed coal particles are discharged from the outlet; at a temperature of 700°C, coal particles may undergo thermal decomposition. Volatile matter, the pyrolysis gas and tar produced enter the solid heat insulation sealing device through the interface of the screw shaft, and the pyrolysis gas and tar are taken out by sand washing, and part of the heat is brought out, which reduces the temperature; cooling by circulating air The temperature of the screw axis is reduced; through the cooling effect of circulating water, the temperature of the shell of the screw conveyor is further reduced.

Embodiment 2

[0035] The high-temperature lignite particles at 750°C are sent into the main body of the screw conveyor from the material inlet, the screw shaft is controlled by the motor and the screw blades are driven, and the coal particles are discharged from the outlet; at 750°C, the coal particles undergo thermal decomposition to release volatile matter, and the generated gas and The tar enters the solid heat insulation sealing device through the interface of the screw shaft, and the pyrolysis gas and tar are taken out by the scouring of coal ash, and part of the heat is taken out; the cooling of the circulating gas reduces the temperature of the screw shaft; through the cooling of the circulating oil The cooling effect further reduces the temperature of the screw conveyor shell.

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Abstract

The invention relates to a high-temperature-resistant screw conveyor, which comprises a motor control system, a material conveying system and a cooling sealing system. The cooling sealing system is coaxially arranged between the material conveying system and the motor control system and comprises a solid heat-insulating and sealing device which is communicated with the material conveying system through a screw shaft connector, a solid feed inlet is arranged above the solid heat-insulating and sealing device, a discharge outlet is arranged below the solid heat-insulating and sealing device, solid particles passing the solid heat-insulating and sealing device are used for heat insulating and cooling. The cooling sealing system further comprises an air cooling device and a liquid circular-cooling device which are coaxially arranged between the solid heat-insulating and sealing device and the motor control system and share the same cylindrical cavity, and a casing of each cylindrical cavity has a hollow interlayer structure. The high-temperature-resistant screw conveyor has the advantages of simple structure and capability of conveying high-temperature materials and the like.

Description

technical field [0001] The invention relates to the field of screw conveyor equipment manufacturing, in particular, the invention relates to a high temperature resistant screw conveyor. Background technique [0002] In the existing screw conveyors, the motor is generally directly connected with the screw shaft, and the material is conveyed through the direct control of the motor, so that the screw conveyor can only be operated at normal temperature or at a lower temperature. Therefore, the disadvantage of the existing conveyor is that if the material to be conveyed is a high-temperature material, the motor will be easily deformed and damaged due to the heat conduction of the screw shaft and the screw conveyor shell, and even lose control, resulting in a short service life. Installation etc. are difficult. On the other hand, the bearing lubricating oil in the conveyor is also not resistant to high temperature. [0003] In order to facilitate the transportation of high-tempe...

Claims

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Application Information

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IPC IPC(8): B65G33/00B65G33/24B65G33/26
Inventor 宋文立李俊峰李松庚杨崇广封兵海都林
Owner 河北中科能源有限公司
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