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Variable temperature drum mechanism

A technology of rotating cylinder and rotating cylinder, which is applied in the field of dynamic thermal stability measurement device of solid particles and variable temperature rotating cylinder mechanism, which can solve problems such as twisting, winding of intake pipe, difficulty in realizing device functions, etc.

Active Publication Date: 2016-07-20
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, how to achieve simultaneous heating of solid particles, especially by means of gas heating, and how to accelerate cooling during the cooling process of solid particles, in order to facilitate the investigation of the dynamic thermal stability of solid particles under chilling conditions and different chilling rates characteristics, and make the structure of the drum mechanism simple and practical, it becomes one of the difficulties in structural design
Because if the inlet pipe of the heating gas is directly connected to the common rotating drum, the inlet pipe will inevitably be entangled or twisted, which will hinder the rotation of the drum and make it difficult to realize the function of the device

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0075] Specific implementation mode one: dynamic thermal stability determination method of coal

[0076] 1. According to the provisions of GB474, prepare about 1.5Kg of air-dried coal samples with a particle size of 6-13mm, and take 500cm after mixing. 3 Coal sample, weighing (accurate to 0.01g).

[0077] 2. Put the coal sample into the drum 6, and connect the drum 6 with the rotating shaft 11. Close the intake pipe 4 and the exhaust pipe 5 to isolate the air, and quickly send the drum 6 into the constant temperature zone of the heating furnace 12 that has been heated to 900°C. into the drum, the gas is discharged through the exhaust pipe 5 through the coal seam thickness.) Turn on the rotary switch, set the speed at 50r / min, adjust the furnace temperature to (850±15)°C, and make the coal sample rotate at this temperature for 30min . When the coal sample is just sent into the heating furnace 12, the furnace temperature may drop, and at this time, it is required to restore t...

specific Embodiment approach 2

[0092] Specific implementation mode two: method for measuring dynamic thermal stability of semi-coke

[0093] 1. Prepare about 1.5Kg of an air-dried semi-coke sample with a particle size of 6-13mm according to the provisions of GB474. After mixing, take a 500cm3 semi-coke sample and weigh it (accurate to 0.01g).

[0094] 2. Put the semi-coke sample into the drum 6, and connect the drum 6 with the rotating shaft 11. Close the intake pipe 4 and the exhaust pipe 5 to isolate the air, and quickly send the drum 6 into the constant temperature zone of the heating furnace 12 that has been heated to 900°C. into the drum, and the gas is discharged from the exhaust pipe 5 through the thickness of the coal seam.) Turn on the rotary switch, set the speed at 50r / min, adjust the furnace temperature to (850±15)°C, and make the semi-coke sample rotate at this temperature 30min. When the semi-coke sample is just sent into the heating furnace 12, the furnace temperature may drop. At this time...

specific Embodiment approach 3

[0109] Specific implementation mode three: dynamic thermal stability determination method of briquette

[0110] 1. From the industrial briquette samples taken in accordance with the regulations of MT / T915, select the briquettes without cracks and basically complete, randomly select about 500g of briquettes (about 10 pieces), and weigh the quasi-quality to 0.01g.

[0111] 2. Put the molded coal sample into the drum 6, and connect the drum 6 with the rotating shaft 11. Close the intake pipe 4 and the exhaust pipe 5 to isolate the air, and quickly send the drum 6 into the constant temperature zone of the heating furnace 12 that has been heated to 900 °C in advance. into the drum, and the gas is discharged from the exhaust pipe 5 through the thick coal seam.) Turn on the rotary switch, set the speed at 50r / min, and adjust the furnace temperature to (850±15)°C, so that the briquette sample is at this temperature Turn for 30min. When the briquette sample is just sent into the heat...

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Abstract

The invention discloses a temperature-variable drum mechanism, which comprises an air intake pipe (4), a rotating drum (6) and a rotating shaft (11). The rotating drum is installed at the end of the rotating shaft. Connects to the inner chamber of the drum. By adding an air inlet pipe, the temperature-changing gas can be passed in for temperature-changing. The drum can adopt a split form including a rotating drum part (61) and a fixed mounting part (62). The air intake pipe is connected to the fixed mounting part and communicated with the drum through the airflow channel arrangement on the rotating drum part and the fixed mounting part. In the chamber, when the rotating shaft drives the drum to rotate, the intake pipe will not be entangled. It is also possible to arrange the air intake pipe, rotating cylinder and rotating shaft coaxially, the rotating shaft is connected to one side wall of the rotating drum to drive the rotating drum to rotate, and the air intake pipe is then connected to the structure on the other side wall of the rotating drum. The structure of the temperature-variable drum mechanism is simple and compact, and the materials in the drum can be heated simultaneously while the drum rotates.

Description

technical field [0001] The invention relates to a rotating drum mechanism, in particular to a temperature-variable rotating drum mechanism capable of feeding a gas medium into the rotating drum for heating, and the variable-temperature rotating drum mechanism is especially suitable for a dynamic thermal stability measuring device of solid particles. Background technique [0002] Thermal stability is one of the important bases for solid particles such as coal, semi-coke, and briquettes in combustion, pyrolysis, and gasification. Thermal stability refers to the degree of stability of solid particles under the action of heat during high-temperature combustion or pyrolysis and gasification, that is, the performance of a coal sample with a certain particle size maintaining its original particle size after being heated. Coal with good thermal stability can be burned or pyrolyzed and gasified with its original particle size during combustion, pyrolysis, and gasification without bre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/02
Inventor 田亚峻芦海云崔鑫孔德婷刘科
Owner CHNA ENERGY INVESTMENT CORP LTD