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Hard asphalt granulation method and device thereof

A hard asphalt and granulation technology, which is applied in the direction of solidification/crushing and processing tar asphalt/petroleum asphalt/natural asphalt, etc., can solve the problems of low production efficiency, asphalt particles need to be dehydrated and dried, and achieve improved utilization rate and bright appearance , the effect of enhancing the heat transfer rate

Inactive Publication Date: 2013-01-16
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The optimization of this patent can reduce the smoke and dust pollution in the coal tar pitch granulation process, but the disadvantage is that the production efficiency is low, and the asphalt granules need to be dehydrated and dried

Method used

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  • Hard asphalt granulation method and device thereof
  • Hard asphalt granulation method and device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The hard asphalt used for granulation is deoiled asphalt obtained by the butane solvent deasphalting process with a softening point of 95°C in the ring and ball method.

[0027] The deoiled asphalt is placed in a hard asphalt melting tank 2, heated with a heater 1 and kept at 200°C. Start the raw material pump 3, the deoiled asphalt in the molten state in the hard asphalt melting tank 2 is delivered to the internal member 4c of the distributor 4 by the molten hard asphalt inlet 4e, start the heat preservation heater 4d, and make the inside of the distributor 4 The temperature of the molten deoiled bitumen in the member 4c was kept constant at 200°C. Start the rotary steel belt system so that the rotary steel belt 6 runs along the rotors 5 and 11 at a speed of 0.15m / s, and the effective cooling length of the steel belt is 15m. Start the cooling water pump 7 to make the cooling water in the cooling water tank 8 cool down the rotating steel belt 6 through the cooling wate...

Embodiment 2

[0029] The hard asphalt used for granulation is deoiled asphalt obtained by the butane solvent deasphalting process with a softening point of 95°C in the ring and ball method.

[0030] The deoiled asphalt is placed in a hard asphalt melting tank 2, heated with a heater 1 and kept at 200°C. Start the raw material pump 3, the deoiled asphalt in the molten state in the hard asphalt melting tank 2 is delivered to the internal member 4c of the distributor 4 by the molten hard asphalt inlet 4e, start the heat preservation heater 4d, and make the inside of the distributor 4 The temperature of the molten deoiled bitumen in the member 4c was kept constant at 200°C. Start the rotary steel belt system so that the rotary steel belt 6 runs along the rotors 5 and 11 at a speed of 0.30m / s, and the effective cooling length of the rotary steel belt is 20m. Start the cooling water pump 7 to make the cooling water in the cooling water tank 8 cool down the rotating steel belt 6 through the cooli...

Embodiment 3

[0032] The hard asphalt used for granulation is deoiled asphalt obtained by the butane solvent deasphalting process with a softening point of 95°C in the ring and ball method.

[0033] The deoiled asphalt is placed in a hard asphalt melting tank 2, heated with a heater 1 and kept at 200°C. Start the raw material pump 3, the deoiled asphalt in the molten state in the hard asphalt melting tank 2 is delivered to the internal member 4c of the distributor 4 by the molten hard asphalt inlet 4e, start the heat preservation heater 4d, and make the inside of the distributor 4 The temperature of the molten deoiled bitumen in the member 4c was kept constant at 200°C. Start the rotary steel belt system so that the rotary steel belt 6 runs along the rotors 5 and 11 at a speed of 0.35m / s, and the effective cooling length of the steel belt is 28m. Start the cooling water pump 7 to make the cooling water in the cooling water tank 8 cool down the rotating steel belt 6 through the cooling wate...

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Abstract

The invention relates to a hard asphalt granulation method and a device thereof. The method comprises the following steps: heating hard asphalt to a molten state, delivering the hard asphalt in the molten state to a distributing device capable of adjusting fluid falling speed, evenly distributing the hard asphalt onto a rotary steel belt in a dropwise state, and carrying out forced cooling on the steel belt with a cooling water spraying system arranged below the rotary steel belt, so that cured asphalt granules are separated and fall off from the steel belt at the rotary end of the rotary steel belt. The method has the advantages of simple technical process, low pressure grade, low operating cost, high production efficiency and small pollution, can conveniently adjust the size of the hard asphalt granules, and has strong adaptability to hard asphalts with different softening points (viscosities). The produced asphalt granules have the advantages of uniform size and beautiful appearance, do not directly contact the cooling medium, and can obviously reduce the smoke dust and water pollution in the production process.

Description

technical field [0001] The invention belongs to the technical field of hard asphalt molding, and mainly relates to a hard asphalt granulation method and a device thereof. Background technique [0002] Hard asphalt generally refers to a type of asphalt with a softening point greater than 75°C by the ring and ball method, and its composition is mainly composed of colloids and asphaltenes. Typical hard asphalts include: solvent deoiled asphalt, Eureka asphalt, coal tar hard asphalt Asphalt, construction asphalt, rock asphalt and lake asphalt, etc. Due to its unique properties, the application of hard asphalt in the fields of road asphalt modification, asphalt-based coatings, polymer modification, electrode adhesives, and foundry sand collapsing agents has attracted more and more attention. However, the softening point of hard asphalt is too high, so it needs to be packed in barrels, bags or cast into ingots, which not only has a large volume and poor convenience, but also brin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10C3/14
Inventor 任满年杨书显赵振辉李彬黄婉利张锋杨秉军朱自新黄建林高青张丽梅柴志杰麻旭荣董力军李中新
Owner CHINA PETROLEUM & CHEM CORP
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