Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of preparation method of porous carbonaceous heat source material

A porous carbon and heat source technology, applied in application, tobacco, food science and other directions, can solve the problems of material flammability and mechanical strength damage, reduce processing tolerance and thermal collapse resistance, reduce material mechanical strength and other problems, achieve Smooth heat transfer, avoid reduction of mechanical strength, and improve the effect of mechanical strength

Active Publication Date: 2018-09-25
CHINA TOBACCO ANHUI IND CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing carbonaceous heat sources are often provided with multiple longitudinal channels (CN102458165A, US4881556, CN101420876A, CN89104936.3, CN1100453A, CN103263084A, etc.) to improve its ignition, combustion adequacy and heat transfer efficiency, but complex physical structures give Material processing brings difficulty and also reduces the mechanical strength of the material, which in turn reduces the processing tolerance and thermal collapse resistance
CN103233295A and CN103263077A propose a method of crosslinking carbonaceous heat source materials using calcium salts. The prepared materials have a loose structure and gaps, and hot air can pass through smoothly, and the crosslinked and solidified network structure can improve mechanical strength and heat resistance Collapsibility, but the size of the carbon powder used is too large, which will inevitably cause great damage to the combustibility and mechanical strength of the material
However, the preparation process of these two methods is loaded down with trivial details, and the energy consumption is high.

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
  • A kind of preparation method of porous carbonaceous heat source material
  • A kind of preparation method of porous carbonaceous heat source material
  • A kind of preparation method of porous carbonaceous heat source material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The composition of each component of the porous carbonaceous heat source material in this embodiment is as follows:

[0026]

[0027] The above-mentioned raw materials and 60g water are initially mixed, and then sent into the screw extruder to continue mixing, while blowing agent CO 2 It is poured into an extruder, extruded after foaming, and then dried and cut to obtain a porous carbonaceous heat source material.

[0028] The screw process parameters are set as follows: the temperature is 25-35° C., and the screw speed is 100 rpm.

[0029] Blowing agent CO 2 The injection flow rate is 6mL / min.

Embodiment 2

[0031] The composition of each component of the porous carbonaceous heat source material in this embodiment is as follows:

[0032]

[0033] The above-mentioned raw materials and 100g water are initially mixed, and then sent into the screw extruder to continue mixing, while blowing agent CO 2 It is poured into an extruder, extruded after foaming, and then dried and cut to obtain a porous carbonaceous heat source material.

[0034] The screw process parameters are set as follows: the temperature is 25-35° C., and the screw speed is 150 rpm.

[0035] Blowing agent CO 2 The injection flow rate is 10mL / min.

Embodiment 3

[0037] The composition of each component of the porous carbonaceous heat source material in this embodiment is as follows:

[0038]

[0039] The above-mentioned raw materials and 130g water are initially mixed, and then sent into the screw extruder to continue mixing, while blowing agent CO 2 It is poured into an extruder, extruded after foaming, and then dried and cut to obtain a porous carbonaceous heat source material.

[0040] The screw process parameters are set as follows: the temperature is 25-35° C., and the screw speed is 180 rpm.

[0041] Blowing agent CO 2 The injection flow rate is 16mL / min.

[0042] The carbonaceous heat sources prepared in Example 1, Example 2, and Example 3 were evaluated for three indicators: ignitability, CO release, and burning shrinkage rate. The results are shown in Table 1.

[0043] It can be seen from Table 1 that the ignition temperature, CO emission and shrinkage rate of the carbonaceous heat source prepared by the present inventi...

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
sizeaaaaaaaaaa
lengthaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing a porous carbon heat source material. The method includes the steps that all components and water are primarily mixed through a mixing machine, and then are fed into a screw extruder to continue to be mixed; meanwhile, a foaming agent CO2 is injected into the screw extruder, extrusion molding is conducted after foaming, then drying and cutting are conducted, and the porous carbon heat source material is obtained. According to the method, due to the porous characteristic of a porous carbon heat source, the porous carbon heat source is easy to ignite, full in burning and smooth in thermal flow transferring, and the difficulty, caused by the complex-longitudinal-channel design, of processing molding and reduction, caused by the complex-longitudinal-channel design, of mechanical strength are avoided.

Description

1. Technical field [0001] The invention relates to a method for preparing a heat source material for cigarettes, in particular to a method for preparing a porous carbonaceous heat source material, which can be used for low-temperature cigarettes and belongs to the field of new tobacco products. 2. Background technology [0002] Low-temperature heating cigarettes generally convey satisfaction and tobacco aroma to consumers by heating non-burning tobacco. Their appearance and consumption methods are also similar to traditional cigarettes, which to a certain extent adapt to and satisfy consumers' physiological needs and psychological needs. This "heat not burn" method enables the tobacco to be heated only at a lower temperature (ideal temperature range 450-550°C), avoiding the generation of a large number of harmful compounds caused by the high temperature environment when the tobacco is burned, and because there is basically no side effects No second-hand smoke will be genera...

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): A24F47/00
CPCA24F47/004
Inventor 王孝峰周顺何庆张亚平徐迎波
Owner CHINA TOBACCO ANHUI IND CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com