Unlock instant, AI-driven research and patent intelligence for your innovation.

High softening point bitumen and its continuous production method and system

A high softening point asphalt, production system technology, applied in melting processing tar pitch/petroleum pitch/natural pitch, processing tar pitch/petroleum pitch/natural pitch by chemical method, curing/crushing processing tar pitch/petroleum pitch/natural pitch Etc., can solve the problems of low process efficiency, high equipment cost, unfavorable production, etc., achieve the effect of uniformity and stability of softening point, reduce equipment cost, and improve production efficiency

Active Publication Date: 2021-02-26
CHNA ENERGY INVESTMENT CORP LTD +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above-mentioned production method of high softening point asphalt can improve the quality of high softening point asphalt to a certain extent, this method not only has high equipment cost, low process efficiency, but also high energy consumption, which is not conducive to large-scale production

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High softening point bitumen and its continuous production method and system
  • High softening point bitumen and its continuous production method and system
  • High softening point bitumen and its continuous production method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] It is used to illustrate the high softening point asphalt of the present invention and its continuous production method and system.

[0045] High softening point asphalt continuous production system: such as figure 2 As shown, the asphalt polymerization reaction system includes two-stage reactors arranged in series (the height of the reactor is 3m, the diameter is ф1m, and there is a built-in blade stirrer).

[0046] The continuous production method of high softening point asphalt: after the aforementioned asphalt raw material is screened by the screening device 1, it enters the asphalt raw material bin 4 through the belt conveyor 2 and the bucket elevator 31, and then the raw material in the asphalt raw material bin is weighed. After the weighing device 5 weighs, enter the crushing device for crushing (crushing to a particle size below 200 mesh), and the crushed raw materials are added to a twin-screw extruder (commercially purchased from Nanjing Ruiya Extrusion Machi...

Embodiment 2

[0048] It is used to illustrate the high softening point asphalt of the present invention and its continuous production method and system.

[0049] High softening point asphalt continuous production system: reference figure 2 The structure shown, the difference is that the asphalt polymerization reaction system adopts image 3 The vertical reaction kettle shown in replaces the secondary reaction kettles arranged in series; the vertical reaction kettle 8 (3m in height, ф1m in diameter) is internally provided with a material conveying assembly, and the material conveying assembly includes along the reaction kettle 8 Axially arranged support rods, and a material conveyor belt 81 spirally arranged around the support rods; the power mechanism (motor 82) of the support rods is arranged above the reaction kettle 8, and the material conveyor belt 81 ( The helix angle β is 75 °), the inner edge is seamlessly fixedly connected with the support rod, the outer edge is matched with the i...

Embodiment 3

[0052] It is used to illustrate the high softening point asphalt of the present invention and its continuous production method and system.

[0053] High softening point asphalt continuous production system: with reference to Example 2, the difference is that air inlet holes are formed on the upper surface of the material conveyor belt, the diameter of the air inlet holes is 5mm, and the hole density is 1 / cm 2 ; The air intake hole located on the material conveyor belt communicates with the air supply unit through the air intake passage provided inside the support rod;

[0054] The method in Example 2 was used to continuously produce high softening point asphalt, with the difference that nitrogen gas was introduced into the reactor 8 through the air inlet holes on the material conveyor belt 81, and the flow rate of the nitrogen gas was 2 L / min.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
softening pointaaaaaaaaaa
Login to View More

Abstract

The invention discloses a high softening point asphalt and its continuous production method and system. The system comprises: a continuous heating feed device and an asphalt polymerization reaction system, the continuous heating feed device is arranged upstream of the asphalt polymerization reaction system, and is connected with the feed port of the asphalt polymerization reaction system, wherein the The continuous heating feeding device is a screw extruder. Adopting the continuous production system of high softening point asphalt provided by the invention can simplify the system composition while improving the softening point uniformity of the prepared high softening point asphalt.

Description

technical field [0001] The invention relates to the production field of high softening point asphalt, in particular to a high softening point asphalt and its continuous production method and system. Background technique [0002] High softening point asphalt refers to asphalt with a softening point above 100°C, especially above 120°C. High softening point asphalt is widely used because of its excellent high temperature resistance. If it is used as a roof covering for building a house, it will not become very soft or even runny even in the hot summer. It can also be used in drilling operations in deep oil and gas fields. As an important part of drilling fluid, it can play a role in plugging, preventing collapse, stabilizing the well wall and reducing rate loss under high temperature conditions. In addition, it can also be used as a modification additive for polymer materials, etc. [0003] In the existing preparation method of high softening point asphalt, such as Chinese p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C10C3/02C10C3/10C10C3/14C10C3/18
Inventor 梁文斌刘均庆张寅灵姚金松闫学良罗峰李初福
Owner CHNA ENERGY INVESTMENT CORP LTD