Spontaneous combustion solution for circular coal storages - water vapour storage method

A round type, coal yard technology, applied in fire rescue and other directions, can solve the problems of easy heat loss, unsuitable long-term coal storage in garden type coal yard, and inability to circulate air.

Inactive Publication Date: 2012-09-19
霍福军
View PDF3 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] 3. Since the air enters the coal seam from the bottom of the coal pile and circulates upwards, the air should be able to circulate freely on the coal pile so that the heat generated by the coal oxidation can be easily lost, but it is best to compact the coal pile in layers. prevent

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] This scheme intends to introduce the waste heat steam of the power plant units into the coal yard, reasonably lay pipes at the bottom of the coal yard, and then continuously infiltrate water vapor into the coal yard through the steam exhaust holes on the pipelines, so that the coal stored in the coal yard is always shrouded in water vapor. Make it no longer possess spontaneous combustion conditions at all, and coal will never spontaneously combust.

[0016] Choice of steam source:

[0017] The steam entering the tail end of the coal yard meets the following requirements:

[0018] Temperature: <200°C

[0019] Pressure (adjustable): 1.5-5Kg / mm 2

[0020] Pipeline: The main pipeline of the system is recommended to use DN80 steel pipe for anti-corrosion and heat preservation treatment.

[0021] It is recommended to use DN40 steel pipes for coal yard branch pipelines and carry out anti-corrosion treatment. In order to prevent the clogging of the air holes of the branch ...

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

No PUM Login to view more

Abstract

The invention relates to a scheme and a storage method which can thoroughly solve the phenomenon of spontaneous combustion in circular coal storages, i.e. a spontaneous combustion solution for circular coal storages - a water vapour storage method. A pipeline is reasonably laid on the bottom of a coal storage to input water vapour into the coal storage, the water vapour then continuously seeps into the coal storage via water vapour discharge holes on the pipeline, so that the coal stored in the coal storage can be always covered in the water vapour, the input of the water vapour can ensure the that temperature of the stored coal cannot exceed 100 DEG C and that the moisture in the coal can be kept in a stable and balanced state for a long time, and consequently, the method solves the problems of constant temperature rise and moisture loss as the result of the oxidative decomposition of the coal stored for a long time, so that the phenomenon of spontaneous combustion cannot take place any more in the circular coal storage. The method is also applicable to the fields of coal storage, sulphur storage and the like in circular storages.

Description

Technical field: [0001] The invention relates to a new material storage method of a round coal yard - a steam storage method, which can completely solve the spontaneous combustion of the round coal yard. [0002] The research shows that the moisture level in coal is an important factor to determine the temperature rise of coal piles. The balance between the latent heat of evaporation of moisture in coal and the heat of oxidation of coal determines the rise in temperature of the coal pile, and tends to balance when the temperature rise reaches 80-90°C. If the moisture in coal is high, this balance can be maintained for a long time. The introduction of steam into the coal yard can ensure that there is sufficient moisture in the coal, and the temperature of the coal pile will be in a stable state for a long time. Therefore, coal can be stored for a long time without spontaneous combustion. In addition, the introduction of steam into the coal yard can make the air volume in the ...

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
IPC IPC(8): A62C3/00A62C3/04
Inventor 霍福军
Owner 霍福军
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap