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

Mining temperature reduction coolant and preparation method thereof

A cold storage agent and cooling agent technology, applied in chemical instruments and methods, heat exchange materials, etc., can solve the problems of short cold storage time, high cost, harmful substances, etc., and achieve good flexibility, simple preparation, and large phase change The effect of latent heat

Inactive Publication Date: 2010-09-08
ANHUI PROVINCE COAL SCI RES INST
View PDF2 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The deficiencies of the cold storage agents prepared by the above-mentioned technical solutions are that the cold storage time is short, the cost is high, and some have defects such as harmful substances, which cannot meet the working requirements of workers working for a long time under high-temperature mine conditions.

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
  • Mining temperature reduction coolant and preparation method thereof
  • Mining temperature reduction coolant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The mine cooling and storage agent includes the following raw materials by weight:

[0023] 6 kg of polyvinyl alcohol, 15 kg of 10% borax solution, 4 kg of propylene glycol, and 75 kg of water.

[0024] The specific preparation and operation method of the cold storage agent is as follows:

[0025] a. According to the above formula, add polyvinyl alcohol and water into the container, and heat to 85~95℃ while stirring to melt the polyvinyl alcohol completely;

[0026] b. Stir the reaction vessel continuously, add freezing point cooling agent to make it evenly mixed;

[0027] c. Add 10% borax solution, stir until the mixture is uniform, and keep it at this temperature for 10 minutes to prepare the cold storage agent;

[0028] d. Pour the prepared cold storage agent into a forming container, freeze and shape it in an ice room below -15°C, then thaw the shaped cold storage agent at room temperature and fill it into the packaging bag to obtain the finished product.

[0029] The initial m...

Embodiment 2

[0031] The mine cooling and storage agent includes the following raw materials by weight:

[0032] Polyvinyl alcohol 4kg, 10% borax solution 5kg, propylene glycol 4kg, water 87kg.

[0033] The specific preparation and operation method of the cold storage agent is the same as in Example 1.

[0034] The initial melting temperature of the cold storage agent is -3.6°C, and the latent heat of melting is 247.5J / g.

Embodiment 3

[0036] The mine cooling and storage agent includes the following raw materials by weight:

[0037] Polyvinyl alcohol 4kg, 10% borax solution 15kg, propylene glycol 8kg, water 73kg.

[0038] The specific preparation and operation method of the cold storage agent is the same as in Example 1.

[0039] The initial melting temperature of the cold storage agent is -4.4°C, and the latent heat of melting is 225.5J / g.

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
melting pointaaaaaaaaaa
enthalpy of fusionaaaaaaaaaa
melting pointaaaaaaaaaa
Login to View More

Abstract

The invention relates to a mining temperature reduction coolant and preparation method thereof. The invention takes macromolecular compound polyvinyl alcohol as basic raw material, cross-linking agent in certain proportion is added, wherein the cross-linking agent is 10% borax solution and the like; then freezing point temperature reduction auxiliary agent is added to prepare gel-like coolant, the prepared coolant is injected into a forming container and is frozen and formed in an icehouse the temperature of which is lower than minus 15 DEG C, and then the formed coolant is unfrozen at room temperature and is filled into a packaging bag. The mining temperature reduction coolant of the invention has the following characteristics: (1) elasticity and flexibility are good, comfortable sensation can be obtained when human body touches the coolant; (2) cold accumulation material has major latent heat of phase change and appropriate phase change temperature; (3) the coolant can be repeatedly used, can not be cataklastic, can not contract and can produce no separated water; (4) the coolant can be in close contact with human body when in use, and refrigeration effect can be fully played; (5) no toxin, odour or pollution is produced; (6) cold insulating plate and cold insulating bag of the outer packing of the coolant has the function of 'environmental protection and high efficiency cold insulation heat preservation'.

Description

Technical field [0001] The invention relates to a mine-used cooling and cold storage agent and a preparation method, belonging to the technical field of cold storage, and particularly suitable for personal protection in deep high-temperature mines. Background technique [0002] Coal mines are one of the main energy sources in our country. With the development of society and the increasing development of coal resources, the depth of mine mining is getting deeper and deeper, and there are more and more high temperature and heat damage mines. At present, the world's major coal mining countries have successively entered deep mining, and the mining depth has gradually increased, and the ground temperature has also risen. According to measurement data from all over the world, the global average temperature gradient is about 3℃ / 100m. The heat source of high-temperature thermal damage in mines mainly comes from the influence of air self-compression heat release, surrounding rock heat d...

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 Applications(China)
IPC IPC(8): C09K5/02C08L29/04C08K13/02C08K3/38C08K5/053
Inventor 周孟颖李宾梁国治张奋奋刘欣
Owner ANHUI PROVINCE COAL SCI RES INST
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