CN105536174A - Method for preventing spontaneous combustion of coal in strip-shaped coal storage yard and application of method - Google Patents
Method for preventing spontaneous combustion of coal in strip-shaped coal storage yard and application of method Download PDFInfo
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- CN105536174A CN105536174A CN201610067486.XA CN201610067486A CN105536174A CN 105536174 A CN105536174 A CN 105536174A CN 201610067486 A CN201610067486 A CN 201610067486A CN 105536174 A CN105536174 A CN 105536174A
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- main pipeline
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/06—Fire prevention, containment or extinguishing specially adapted for particular objects or places of highly inflammable material, e.g. light metals, petroleum products
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Abstract
The invention belongs to the technical field of coal storage, in particular to a method for preventing spontaneous combustion of coal in a strip-shaped coal storage yard and the application of the method. The method comprises the steps that a first main pipeline is laid along the long edges of the bottom of the strip-shaped coal storage yard, and at least one pair of lateral main pipelines are arranged on one side of the first main pipeline; and then steam is evenly introduced into the coal storage yard from the initial end of the first main pipeline, and the steam is delivered to the bottom of the strip-shaped coal storage yard through the first main pipeline and the lateral main pipelines. The steam is introduced into the coal storage yard according to specific parameters and methods, so that it is guaranteed that sufficient moisture is contained in the coal, the temperature of a coal pile is stable, spontaneous combustion of the coal is avoided after the coal is stored for a long time, and the problem of spontaneous combustion is completely solved; the method has extremely broad market prospects and economic value.
Description
Technical field
The invention belongs to coal storage technical field, be specifically related to a kind of method and the application thereof that prevent bar shaped coal yard spontaneous combustionof coal.
Background technology
Bar shaped coal yard first takes out owing to cannot fully accomplish first to stack, and therefore, there is certain dieseling, and this is the common problem existed at present.Current solution bar shaped coal yard from burning method is: compaction in layers, regularly replace; Mechanical removal method.Concrete measure mostly is: in territory, Coal Storage Area, should remove all fire-hazardous flammable foreign material, as the rag and ignition control compound etc. of wood chip, paper, malthoid, oil-impregnated; Require to carry out drying process to coal yard, should not store up slag, dry pulverized coal or other porous masses, terrace should have certain slope, and by dump compaction in layers, air is to a certain degree completely cut off.But these above methods can only play and delay self-combustion, cannot from dealing with problems at all.
Summary of the invention
For this reason, technical problem to be solved by this invention is thoroughly to solve bar shaped coal yard spontaneous combustion problems, thus proposes a kind of coal long-term stability that enables and deposit and the method for spontaneous combustion no longer occurs.
For solving the problems of the technologies described above, a kind of method preventing bar shaped coal yard spontaneous combustionof coal of the present invention, wherein, described method is:
First the first main pipeline that long limit is laid bottom described bar shaped coal yard, and at least one offside main pipeline arranged in the side of described first main pipeline; Then pass into steam uniformly from the initiating terminal of described first main pipeline, by the first main pipeline and side main pipeline, steam is delivered to the bottom of described bar shaped coal yard.
Preferably, the described method preventing bar shaped coal yard spontaneous combustionof coal, wherein, two pipelines of described every offside main pipeline are parallel to each other and are connected with the first main pipeline is vertical; Described every offside main pipeline is through described bar shaped coal yard broadside.
Preferably, the described method preventing bar shaped coal yard spontaneous combustionof coal, wherein, re-lays between two pipelines of the every offside main pipeline described in often pair and is connected with quantity at least two, parallel to each other and vertical with two described side main pipelines branch pipe(tube).
Preferably, the described method preventing bar shaped coal yard spontaneous combustionof coal, wherein, described branch pipe(tube) is provided with three row's apertures, between the row of adjacent two row described aperture, angle is 120 degree, and hole diameter is 3.0mm, and that often arranges between described aperture is spaced for 15-20cm.
Preferably, the described method preventing bar shaped coal yard spontaneous combustionof coal, wherein, the temperature < of described water vapour 200 DEG C; The pressure that described steam arrives branch pipe(tube) is 1.5 ~ 5Kg/mm
2.
Preferably, the described method preventing bar shaped coal yard spontaneous combustionof coal, wherein, the outside of described branch pipe(tube) is all also wound with glass wool cloth.
Preferably, the described method preventing bar shaped coal yard spontaneous combustionof coal, wherein, described side main pipeline and described branch pipe(tube) needs have been installed in fixing with in the pipe trench of protective effect, and the width of described pipe trench is 30cm, the degree of depth is 30cm.
Preferably, the described method preventing bar shaped coal yard spontaneous combustionof coal, wherein, the initiating terminal of described first main pipeline or side main pipeline is provided with flowmeter, is also provided with at least one in manually-operated gate, electrically operated valve.
Preferably, the described method preventing bar shaped coal yard spontaneous combustionof coal, wherein, described first main pipeline is DN80 and side main pipeline is DN40 steel pipe; Described branch pipe(tube) is DN25 steel pipe.
More preferred, the invention also discloses the application of method described in any one in fuel reservoir field.
Technique scheme of the present invention has the following advantages compared to existing technology: the method for the invention passes into steam by specific parameter and method bottom coal yard, ensure there is adequate water in coal, dump temperature will can be in stable state for a long time, can make coal long-term storage and can not spontaneous combustion; The fundamental difference of administering spontaneous combustion with other is the bottom that steam can be made directly to be delivered to bar shaped coal yard, temperature moisture content in certain scope, supplementary coal that can control stock ground makes it keep constant, in addition, bottom coal yard, steam is passed into by native system, air capacity in coal yard can be made not enough, make coal have no way of being oxidized at all; Solve coal yard intensification, moisture content constantly lost problem at one stroke, make coal yard no longer possess autoignition conditions, spontaneous combustion problems is solved; Therefore, depositing coal and dieseling can not occur again, is the measure thoroughly solving coal spontaneous combustion phenomenon; And can ensure coal yard machinery and operating personnel normally, safe operation and operation, there is great market prospects and economic worth.
Detailed description of the invention
Embodiment 1 present embodiment discloses a kind of method preventing bar shaped coal yard spontaneous combustionof coal, and described method is:
Bar shaped coal yard is carried out some subregions along length range, and number of partitions is no less than one; A pipeline (DN80 steel pipe, with all having carried out preservative treatment before) is laid, as the first steam main pipeline again along bar shaped coal yard length range; In each subregion, on the first main pipeline, conducting goes out two and is parallel to each other and runs through the side main pipeline (DN40, with having carried out preservative treatment before) bottom bar shaped coal yard; Then repave between two described side main pipelines and be provided with a great deal of, parallel each other and vertical with two described side main pipelines branch pipe(tube) (DN25 steel pipe, with all having carried out preservative treatment before); Described main pipeline, side main pipeline and described branch pipe(tube) are interconnected; Then pass into steam uniformly from the initiating terminal of described first main pipeline, by branch pipe(tube), by steam, (, for being not less than 150 DEG C, pressure is for being not less than 1.5Kg/mm for the temperature of water vapour
2) deliver to the bottom of bar shaped coal yard.
Described branch pipe(tube) is provided with three row's apertures, between the row of adjacent two rows, angle is 120 degree, and hole diameter is 3.0mm, and the spaced of aperture is 15-20cm.For preventing branch pipe(tube) air-hole blockage, pipeline glass wool cloth is arranged in pipe trench after being wound around, and pipe trench dead size 30cm is wide, 30cm dark, covers with rubble, sand.
The initiating terminal of described main pipeline can be provided with manually-operated gate and a flowmeter.
Method described in the present embodiment is applicable to the application with fuel coal storage field, is mainly used in the factory such as power plant, petrochemical plant depositing coal with bar shaped coal yard.
Embodiment 2 present embodiment discloses a kind of method preventing bar shaped coal yard spontaneous combustionof coal, and described method is:
Bar shaped coal yard is carried out some subregions along length range, and number of partitions is no less than one; A pipeline (DN80 steel pipe, with all having carried out preservative treatment before) is laid, as the first steam main pipeline again along bar shaped coal yard length range; In each subregion, on the first main pipeline, conducting goes out two and is parallel to each other and runs through the side main pipeline (DN40, with having carried out preservative treatment before) bottom bar shaped coal yard; Then repave between two described side main pipelines and be provided with a great deal of, parallel each other and vertical with two described side main pipelines branch pipe(tube) (DN25 steel pipe, with all having carried out preservative treatment before); Described main pipeline, side main pipeline and described branch pipe(tube) are interconnected; Then pass into steam uniformly from the initiating terminal of described first main pipeline, by branch pipe(tube), by steam, (, for being not less than 200 DEG C, pressure is for being not less than 1.4Kg/mm for the temperature of water vapour
2) deliver to the bottom of bar shaped coal yard.
Described branch pipe(tube) is provided with three row's apertures, between the row of adjacent two rows, angle is 120 degree, and hole diameter is 3.0mm, and the spaced of aperture is 15cm.For preventing branch pipe(tube) air-hole blockage, pipeline gauze is arranged in pipe trench after being wound around, and pipe trench dead size 30cm is wide, 30cm dark, covers with rubble, sand.
The initiating terminal of described main pipeline can be provided with electrically operated valve and a flowmeter.
Method described in the present embodiment is applicable to the application with fuel storage coal field, is mainly used in the factory such as power plant, petrochemical plant depositing coal with bar shaped coal yard.
Embodiment 3 present embodiment discloses a kind of method preventing bar shaped coal yard spontaneous combustionof coal, and described method is:
Bar shaped coal yard is carried out some subregions along length range, and number of partitions is no less than one; A pipeline (DN80 steel pipe, with all having carried out preservative treatment before) is laid, as the first steam main pipeline again along bar shaped coal yard length range; In each subregion, on the first main pipeline, conducting goes out two and is parallel to each other and runs through the side main pipeline (DN40, with having carried out preservative treatment before) bottom bar shaped coal yard; Then repave between two described side main pipelines and be provided with a great deal of, parallel each other and vertical with two described side main pipelines branch pipe(tube) (DN25 steel pipe, with all having carried out preservative treatment before); Described main pipeline, side main pipeline and described branch pipe(tube) are interconnected; Then pass into steam uniformly from the initiating terminal of described first main pipeline, by branch pipe(tube), by steam, (, for being not less than 125 DEG C, pressure is for being not less than 1.6Kg/mm for the temperature of water vapour
2) deliver to the bottom of bar shaped coal yard.
Described branch pipe(tube) is provided with three row's apertures, between the row of adjacent two rows, angle is 120 degree, and hole diameter is 3.0mm, and the spaced of aperture is 15cm.For preventing branch pipe(tube) air-hole blockage, pipeline gauze is arranged in pipe trench after being wound around, and pipe trench dead size 30cm is wide, 30cm dark, covers with rubble, sand.
The initiating terminal of described main pipeline can be provided with manually-operated gate and a flowmeter.
Method described in the present embodiment is applicable to the application with fuel storage coal field, is mainly used in the factory such as power plant, petrochemical plant depositing coal with bar shaped coal yard.
Power Plant afterheat steam prevents the water vapor system that passes into of spontaneous combustionof coal from introducing coal yard by this bar shaped coal yard by method described in the present embodiment, i.e. reasonable tubing bottom bar shaped coal yard, again by exhaust hole on pipeline continuously to coal yard water leaking-in steam, make bar shaped coal yard deposit coal and shroud all the time among water vapour.Make it no longer possess autoignition conditions, bar shaped coal yard is deposited coal spontaneous combustion problem and is solved at all.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain of the invention.
Claims (10)
1. prevent a method for bar shaped coal yard spontaneous combustionof coal, it is characterized in that, described method is:
First the first main pipeline that long limit is laid bottom described bar shaped coal yard, and at least one offside main pipeline arranged in the side of described first main pipeline; Then pass into steam uniformly from the initiating terminal of described first main pipeline, by the first main pipeline and side main pipeline, steam is delivered to the bottom of described bar shaped coal yard.
2. prevent the method for bar shaped coal yard spontaneous combustionof coal as claimed in claim 1, it is characterized in that, two pipelines of described every offside main pipeline are parallel to each other and are connected with the first main pipeline is vertical; Described every offside main pipeline is through described bar shaped coal yard broadside.
3. prevent the method for bar shaped coal yard spontaneous combustionof coal as claimed in claim 2, it is characterized in that, re-lay between two pipelines of the every offside main pipeline described in often pair and be connected with quantity at least two, parallel to each other and vertical with two described side main pipelines branch pipe(tube).
4. prevent the method for bar shaped coal yard spontaneous combustionof coal as claimed in claim 3, it is characterized in that, described branch pipe(tube) is provided with three row's apertures, between the row of adjacent two row described aperture, angle is 120 degree, hole diameter is 3.0mm, and that often arranges between described aperture is spaced for 15-20cm.
5. prevent the method for bar shaped coal yard spontaneous combustionof coal as claimed in claim 4, it is characterized in that, the temperature < of described water vapour 200 DEG C; The pressure that described steam arrives branch pipe(tube) is 1.5 ~ 5Kg/mm
2.
6. prevent the method for bar shaped coal yard spontaneous combustionof coal as claimed in claim 5, it is characterized in that, the outside of described branch pipe(tube) is all also wound with glass wool cloth.
7. prevent the method for bar shaped coal yard spontaneous combustionof coal as claimed in claim 6, it is characterized in that, described side main pipeline and described branch pipe(tube) needs have been installed in fixing with in the pipe trench of protective effect, and the width of described pipe trench is 30cm, the degree of depth is 30cm.
8. prevent the method for bar shaped coal yard spontaneous combustionof coal as claimed in claim 7, it is characterized in that, the initiating terminal of described first main pipeline or side main pipeline is provided with flowmeter, is also provided with at least one in manually-operated gate, electrically operated valve.
9. prevent the method for bar shaped coal yard spontaneous combustionof coal as claimed in claim 8, it is characterized in that, described first main pipeline is DN80 and side main pipeline is DN40 steel pipe; Described branch pipe(tube) is DN25 steel pipe.
10. the application of method in fuel reservoir field as described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610067486.XA CN105536174A (en) | 2016-01-29 | 2016-01-29 | Method for preventing spontaneous combustion of coal in strip-shaped coal storage yard and application of method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610067486.XA CN105536174A (en) | 2016-01-29 | 2016-01-29 | Method for preventing spontaneous combustion of coal in strip-shaped coal storage yard and application of method |
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| CN105536174A true CN105536174A (en) | 2016-05-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114588568A (en) * | 2020-12-04 | 2022-06-07 | 浙江浙能富兴燃料有限公司 | Device for preventing spontaneous combustion of coal in strip-shaped coal storage yard |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201367753Y (en) * | 2009-02-19 | 2009-12-23 | 中国电力工程顾问集团中南电力设计院 | Heat insulation and fire protection device for closed circular coal yard |
| CN102671328A (en) * | 2011-03-14 | 2012-09-19 | 霍福军 | Spontaneous combustion solution for circular coal storages - water vapour storage method |
| CN202446707U (en) * | 2011-12-22 | 2012-09-26 | 鞍钢股份有限公司 | Steam fire hydrant |
| CN204017206U (en) * | 2014-06-27 | 2014-12-17 | 内蒙古电力勘测设计院有限责任公司 | A kind of bar Shape closed coal yard fire-fighting system using fire monitor |
-
2016
- 2016-01-29 CN CN201610067486.XA patent/CN105536174A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201367753Y (en) * | 2009-02-19 | 2009-12-23 | 中国电力工程顾问集团中南电力设计院 | Heat insulation and fire protection device for closed circular coal yard |
| CN102671328A (en) * | 2011-03-14 | 2012-09-19 | 霍福军 | Spontaneous combustion solution for circular coal storages - water vapour storage method |
| CN202446707U (en) * | 2011-12-22 | 2012-09-26 | 鞍钢股份有限公司 | Steam fire hydrant |
| CN204017206U (en) * | 2014-06-27 | 2014-12-17 | 内蒙古电力勘测设计院有限责任公司 | A kind of bar Shape closed coal yard fire-fighting system using fire monitor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114588568A (en) * | 2020-12-04 | 2022-06-07 | 浙江浙能富兴燃料有限公司 | Device for preventing spontaneous combustion of coal in strip-shaped coal storage yard |
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Application publication date: 20160504 |