CN108137234A - The method for storing coal measures system and storage coal - Google Patents
The method for storing coal measures system and storage coal Download PDFInfo
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- CN108137234A CN108137234A CN201680056574.8A CN201680056574A CN108137234A CN 108137234 A CN108137234 A CN 108137234A CN 201680056574 A CN201680056574 A CN 201680056574A CN 108137234 A CN108137234 A CN 108137234A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G3/00—Storing bulk material or loose, i.e. disorderly, articles
- B65G3/02—Storing bulk material or loose, i.e. disorderly, articles in the open air
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Abstract
Coal measures system and a kind of method for storing coal are store the present invention provides a kind of, the system and method are to be realized with a low cost the water content that appropriate temperature is controlled without dramatically increasing coal.The storage coal measures system includes the coal yard institute 2 for storing coal, and what is formed in coal yard institute has the dump 1 of the truncated cone shape of top surface 11 and side 12, the water sprinkler 3 for the exhibition pressure equipment for opening up pressure dump 1 and for sprinkling water to dump.Equipment is pressed to carry out the exhibition pressure on at least peripheral part of the top surface of dump 1 11, and water sprinkler 3 carries out the watering to side 12 by exhibition.
Description
Technical field
The present invention relates to the methods of storage coal measures system and storage coal.
Background technology
Traditionally, since coal easily aoxidizes and generates heat, so controlling temperature by water spray etc. usually when storing coal
Degree.As such technology, disclosed in patent document 1 by by coal at least 50% water-immersed state of its total height
The spontaneous heating to inhibit coal is stored, the coal of storage is taken out with hygrometric state, and coal is carried out using from the steam that power generator extracts
Heating and drying.
Reference listing
Patent document
Patent document 1：Japanese Patent Laid-Open 2015-055375
Invention content
Technical problem
But in technology disclosed in patent document 1, by impregnating coal, the water content of coal dramatically increases.Due to this
The steam drying that the increased coal of water content is extracted, so being complicated in the presence of the process that the coal of storage is processed into serviceable condition
And the problem of cost of coal may increase.In addition, carry out moisture-free coal due to the use of the steam extracted from power generator, so also depositing
Storing the problem of coal position is limited in the place of neighbouring power generator.
The present invention was completed to solve the above problem, can be suitable to be realized with a low cost its purpose is to provide one kind
When temperature controlled storage coal measures system and storage coal method.
The technical solution solved the problems, such as
The storage coal measures system of the present invention includes：
For storing the threshing ground of coal；
By the way that the coal to be accumulated to the dump of truncated cone shape to be formed on the threshing ground, the dump has top
Face and side；
The exhibition of the dump is pressed to press equipment for opening up；
For the water sprinkler sprinkled water to the dump；And
Wherein, at least peripheral part of the top surface of the dump presses the exhibition pressure of equipment, and the side of the dump through the exhibition
It sprinkles water through the water sprinkler in face.
The present invention also provides a kind of methods for storing coal, the described method comprises the following steps：
The dump of truncated cone shape is formed by the way that the coal is accumulated on threshing ground, the dump has top surface and side
Face；
Exhibition is depressed into less the peripheral part of the top surface of the dump；And
It sprinkles water on the side of the dump through exhibition pressure.
(definition of term)
In the present invention, " exhibition pressure (pressing) " mean to carry out its surface during or after dump is formed compacting and
Consolidation is to reduce dump porosity.
" exhibition pressure equipment " refers to the general device for suppressing dump." heavy-duty machinery " can be easily used as " opening up pressure to set
It is standby ".Another available " exhibition pressure equipment " is including as the weight of " exhibition pressure equipment " with planar bottom surface and for vertically moving
Dynamic weight causes the combination of the downtrodden vertical movement apparatus in the surface of dump." heavy-duty machinery " is the general art of construction machinery
Language, " Construction traffic " in " heavy-duty machinery " using the weight of itself in the operation of dump surface only by that can carry out " pressure
System ".In the case where using power shovel as " heavy-duty machinery ", can be shoveled by the promotion on dump surface or hitting power
Scraper bowl or backhoe carry out " exhibition pressure ".When the place that " exhibition pressure " " heavy-duty machinery " cannot be run, this is effective.In addition,
" mold compacting device " as a kind of " heavy-duty machinery " is pressed available for exhibition.
In addition, it in the present invention, is defined as below for the exhibition pressure of the part of the dump in " exhibition is pressed ".
" periphery exhibition pressure " means that only 3m is extremely in the position of 1m to 2m for exhibition pressure and the top surface neighboring in dump top surface
The region of 5m.
" surface exhibition pressure " refers to the entire top surface of exhibition pressure dump.Therefore, in " surface exhibition pressure ", in addition to will be by " periphery exhibition
Except the region of pressure " exhibition pressure, inside and outside region is also pressed by exhibition.In addition, in " surface exhibition pressure ", the outer rim of dump top surface
Partly (" top of the slope " that is equivalent in civil engineering term) is shaped generally as circle.
" corner exhibition pressure " means the corner of exhibition pressure dump side (with the corresponding part of truncated pyramid lateral ridge).In such case
Under, preferably exhibition pressure is so that corner is shaped generally as circle.When heavy-duty machinery is used to carry out " corner exhibition pressure ", heavy-duty machinery without
Method is run on the side of dump.However, it is possible on corner as described above by push or impact scraper bowl or backhoe come into
The exhibition pressure in row corner.
The advantageous effects of invention
In accordance with the invention it is possible to storage coal measures system is provided and the storage coal method of dump temperature is suitably controlled with low cost.
Description of the drawings
Fig. 1 is the vertical view of the dump of an embodiment of the invention.
Fig. 2 is the side view of dump shown in Fig. 1.
Fig. 3 is the figure for the surface corner exhibition pressure for showing dump shown in Fig. 1.
Fig. 4 is the schematic plan of dump in embodiment 1.
Fig. 5 is the chart for showing correlation between the temperature of the dump in embodiment 1 and watering.
Fig. 6 is the chart for showing correlation between the water content of the dump in the embodiment of the present invention 1 and watering.
Fig. 7 is the schematic plan of dump in embodiment 2.
Fig. 8 is the chart for showing correlation between the temperature of the dump in embodiment 2 and watering.
Fig. 9 is the chart for showing correlation between the water content of the dump in embodiment 2 and watering.
Figure 10 A are the charts of the transformation of the mean temperature and water content that show the dump in embodiment 3.
Figure 10 B are the maximum temperature for showing the dump in embodiment 3 and the chart of the transformation of water content.
Figure 11 is the schematic plan of the dump in comparative example 1.
Figure 12 is the chart for the temperature transition for showing the dump in comparative example 1.
Figure 13 is the schematic plan of the dump in comparative example 2.
Figure 14 is the chart of the mean temperature for showing the dump in comparative example 2 and the transformation of maximum temperature.
Figure 15 is the schematic plan of the dump in comparative example 3.
Figure 16 is the chart of the transformation for the maximum temperature for showing the dump in comparative example 3.
Specific embodiment
With reference to the coal in figure 1 and Fig. 2, showing the part of coal storage system of composition according to one embodiment of the present invention
The vertical view and side view of heap 1.Dump 1 is formed by accumulating coal in coal yard institute 2, is usually had and is used as approximate horizontal surface
Top surface 11 and continuous from top edge and extend to side 12 to bottom angled, thus dump has truncated cone shape,
The cross section of wherein vertical direction is substantially trapezoidal shape on the whole.Exhibition pressure and watering are carried out on dump 1 to inhibit spontaneous heating.It uses
The exhibitions such as heavy-duty machinery pressure equipment carries out the exhibition pressure of dump 1, is sprinkled water using water sprinkler.Therefore, other than dump 1,
Storage coal measures system further includes exhibition press and water sprinkler.
These configurations for opening up pressure and watering etc. are described below.
[exhibition pressure]
Dump 1 can press equipment to carry out the surface of coal accumulated by accumulation device by using exhibitions such as heavy-duty machineries
It shapes and is formed.In the dump 1 accumulated and shaped, reduce dump hole, and inhibit oxidation and the hair of coal by opening up pressure
Heat.Dump 1 can be formed for example by repeating the steps of：The coal of piling height about 2m simultaneously opens up pressure, is further accumulated to coal
Height 2m simultaneously opens up pressure.Exhibition pressure can be carried out by loading heavy-duty machinery on the top surface of the upper surface as dump 1 11.By
More coals and the further coal of exhibition pressure accumulation are accumulated on top surface 11 through exhibition pressure, the dump with desired size can be formed.
When carrying out exhibition pressure, the exhibition pressure (surface exhibition pressure) of entire top surface 11 can be carried out or the peripheral part 13 of only top surface can be carried out
Exhibition pressure (periphery exhibition pressure).However, the exhibition pressure of the crucial peripheral part 13 for being top surface.The reason is that flow into coal from side 12
The air of heap 1 facilitates oxidation and heat, and the density of coal is increased to the exhibition pressure of the peripheral part 13 of top surface, thus air be difficult to from
Side 12 flows into.When the peripheral part 13 in face is beared down on one in exhibition, if the end 15 of heavy-duty machinery and top surface is excessively near, there are heavy machines
The possibility that tool falls from dump 1.Therefore, by the way that the peripheral part 13 for having carried out the top surface of exhibition pressure is set in end 15
Circumference and the access for ensuring heavy-duty machinery.
Dump 1 can have carrier path 14 on a part of side 12, serve as the top surface in coal yard institute 2 and dump 1
The path for the heavy-duty machinery advanced between 11.The shape in carrier path 14 (i.e. the path of heavy-duty machinery) and position can be arbitrary
's.For example, when checking dump 1 from top, carrier path 14 can be arranged on the diagonal of dump 1 or as shown in Figure 1 such as Fig. 4
It is shown to be arranged on except the diagonal of dump 1.
The side 12 of dump 1 is formed by the coal for accumulating and wandering surrounding.Since heavy-duty machinery is difficult to steadily operate in load
Have on the side 12 except path 14, so usually without the exhibition pressure to side 12.
[watering]
Since coal, particularly ub-bituminous coal and lignite (lignite including upgrading) are easy to oxidation and heat in many cases,
Therefore the watering to dump 1 (referring to Fig. 1) is carried out by water sprinkler 3 during coal is stored.In dump 1, since gas is from side
12 flow into, and side 12 is nearby easiest to oxidation and heat.Therefore, the watering of side 12 can be effectively inhibited by least spontaneous
Heat.
Oxidation and the heat of dump 1 are can inhibit even if only sprinkling water on side 12, and in the case, and entire
Situation about sprinkling water on dump 1 is compared, and can inhibit the increase of coal water content and the increase of watering amount.The installation site of water sprinkler 3 and
Quantity can be arbitrary, such as the position shown in Fig. 1 and quantity, as long as can be spilt in the desired region on side 12
Water.
Watering does not need to be carried out continuously, and periodically watering is i.e. enough, such as daily a few hours.By the way that pressure and watering group will be opened up
It closes, can fully inhibit the spontaneous heating of coal and the increase of water content.It, can also be for example by the follow-up of watering for the frequency of watering
Frequency is reduced to, to the half in the period until the 10th to 14 day, thus to be further suppressed aqueous relative to since store coal
The increase of amount.In addition, even if from starting to stop watering after about 1 to 2 month after storing coal, the spontaneous heating of coal can also be inhibited.
[corner exhibition pressure]
Fig. 3 shows the example of the exhibition pressure on the surface corner of dump 1.To simplify the explanation, carrier is omitted in figure 3
Path 14.It is formed since dump 1 accumulates lumped coal, air is easily flowed near corner 16, easily by oxidation of coal.
Particularly, the air capacity in the corner 16 of dump 1 is flowed into (in the example shown in figure 2, since dump 1 is substantially truncated cone shape
Shape, therefore corner 16 is equivalent to the side edges on periphery 4) increase due to wind.Therefore, pressure dump 1 is opened up by using heavy-duty machinery
The air capacity because being flowed during wind is reduced in corner 16, so as to inhibiting the oxidation of coal.
[other configurations]
Dump 1 can spread chemical agent as needed.Spreading chemical agent can be after the formation of dump 1 to the entire of dump 1
Surface carries out or coal is carried out before dump 1 is formed.The example of reagent includes assigning coal hydrophilic surface-active
Agent and the smears for keeping the shape of dump 1.In the case of dissemination surface activating agent, it is preferably being formed into dump 1
It is dispersed on coal before, also to assign hydrophily in dump 1.On the other hand, in the case where spreading smears, due to
The surface of coating agent dump 1, that is, enough, therefore it is preferred that spread after dump 1 is formed.
When by this method spread chemical agent when, storage coal measures system can further include be applicable to spread chemical agent it is suitable
Chemical agent dissemination apparatus.
Embodiment
Assessment inhibits the effect of the spontaneous heating of dump 1 in embodiment 1-3 and comparative example 1-3.Table 1 shows these implementations
The property of coal used in example and comparative example.
(embodiment 1)
Fig. 4 shows the schematic plan of the dump 1 in embodiment 1.Dump 1 is used in combination by repeating with accumulation device accumulation coal
Heavy-duty machinery exhibition press so that accumulation coal shaping surface the step of and formed.In Fig. 4, the peripheral part 13 of top surface is omitted.
In embodiment 1, the 1 (coal storage of dump by being formed on coal yard 2：About 30,000 tons) on dissemination surface activity
Agent improves hydrophily.It, will by the chemical agent dissemination apparatus being mounted in the electric discharge feeder of unloader before coal is accumulated
Surfactant is dispersed on coal.It uses known surface activating agent (Das Seal F-10, manufactured by NOF CORPORATION)
As the surfactant.
After dump 1 is formed, exhibition pressure only is carried out to the peripheral part 13 in top 11 by using heavy-duty machinery compacting.This
Outside, for corner 16, recycled by using heavy-duty machinery (scraper bowl or backhoe of power shovel) hit its surface and shape and to it
Surface carries out exhibition pressure.Only sprinkle water on side 12.Pacify the position on side 12 represented in Fig. 4 with circled numerals 1-16
Thermocouple is filled as temperature measuring equipment.Then, the temperature of each position is measured, and using the average value of measured temperature as dump
1 temperature.Specifically, each thermocouple is inserted into protection pipe, and by them in the apparent height (coal from the ground of dump 1
Threshing ground 2) 3m position be inserted into dump 1 in.Thermocouple is inserted into the depth of dump 1 as 1.5m, the thermocouple spacing in horizontal direction
From for 10m.
The correlation between 1 temperature of dump and watering in embodiment 1 is shown in the chart of Fig. 5.In the chart of Fig. 5
In, a scale on horizontal axis represents 10 days.In embodiment 1, it almost evenly sprinkles water to side 12.In embodiment 1
Watering amount shown in the following table 2.
[table 2]
Above-mentioned " number of days of process " is the number of days since being store coal.This is also applied for following embodiment and comparative example.Such as Fig. 5
Shown, the temperature of dump 1 is consistently lower than 60 DEG C in embodiment 1, this is to store the upper limit that coal controls temperature in the process.It shows and passes through
Watering only on side 12 inhibits the spontaneous heating of dump 1.
In addition, in embodiment 1, measuring the water content of the peripheral part of dump 1, drawn with confirming due to watering and rainfall
The transformation of water content in the dump 1 risen.The measurement of periphery water content carries out as follows.By in 4 sides 12 of dump 1 it is each
Be divided into 2 regions in horizontal direction, i.e. 8 regions in total, each region from the height apart from ground 40cm and with 12 phase of side
Depth away from 30cm collects 3 samples.The sample of collection is mixed, the water content measured in the sample of mixing is used as dump 1
Periphery water content.
Correlation between the water content of dump 1 in embodiment 1 and watering is shown in FIG. 6.In figure 6, with Fig. 5's
Situation is the same, and on horizontal axis a scale also illustrates that 10 days.The longitudinal axis also shows that rainfall.In embodiment 1, it is only right due to sprinkling water
Side 12 carries out, and despite the presence of some rainfalls, the increase of water content is only several % of water content when storage coal starts.Cause
This, in embodiment 1, the water content that spontaneous heating is suppressed without unnecessarily increasing coal.
Although not using in embodiment 1, in order to keep the shape of dump 1, known smears can be spread.In addition to
Dust inhibition is outer (for example, see JP-A-7-117823 and JP-A-2000-80356), can be into one by spreading smears
Step inhibits oxidation and the heat of dump 1.In embodiment 1, enough temperature suppressions are obtained in the case where not spreading smears
Effect processed.
(embodiment 2)
Fig. 7 shows the schematic plan of the dump 1 in embodiment 2.In example 2, although the shape and reality of dump 1
Apply essentially identical in example 1, but the amount of the coal to be stored is about 26,770 tons.As the situation of embodiment 1, by surfactant
It is dispersed on dump 1, and does not spread smears.It presses as exhibition, as the situation of embodiment 1, only exists to the exhibition pressure of top surface 11
It is carried out (as to top surface 11) on the peripheral part 13 of top surface, and further exhibition pressure is carried out on corner 16.As for watering, with reality
The situation for applying example 1 is the same, is only sprinkled water by continuously sprinkling water and subsequently periodically sprinkling water to side 12.Watering in embodiment 2
Amount is shown in the following table 3.After regular watering, without sprinkling water until the 49th day.Temperature is measured during this is 49 days and is contained
Water, and check the effect of dump 1 in embodiment 2.
[table 3]
By the position represented in Fig. 4 with circled numerals 1-16 install in the same manner as example 1 thermocouple come
Temperature is measured, and measures the transformation of the periphery temperature of dump 1 as measuring temperature average value.In example 2, it also measures
The transformation of the internal temperature of dump 1.When measuring internal temperature, after sprinkling water in the early stage, the top surface 11 of dump 1 in the figure 7 A,
B, it drills at the position that C is represented, 5 thermocouples are embedded with the interval of 1.5m so that minimum thermocouple is located at away from ground (coal yard
Institute 2) 1.5 meters of height.Internal temperature is determined by the average value of the temperature of 3 × 5 thermocouple measurements of row.
Fig. 8 shows the periphery temperature of dump 1 and the transformation of internal temperature.The spontaneous heating of dump 1 is sprinkled water as shown in Figure 8
Effect inhibits, and during entirely storage coal, periphery temperature and internal temperature are controlled below 40 DEG C.
For water content, periphery water content and interior moisture content are measured.Due in the measurement of periphery water content and embodiment 1
It is identical, therefore its description is omitted herein.It measures the internal temperature of dump 1 to install thermocouple in drilling and disassembles dump
When 1, acquire sample from the inside of dump 1 and measure the water content of sample as interior moisture content.
Fig. 9 shows the transformation of the water content of dump 1.It can be confirmed by Fig. 9, although the periphery water content phase when storing coal and starting
About 1% to 3% is increased for the water content, when disassembling dump 1, when measuring interior moisture content, interior moisture content
The increase of water content when starting relative to storage coal is within 1%.From the above, in example 2, spontaneous heating be suppressed and
Without unnecessarily increasing the water content of coal.
(embodiment 3)
In embodiment 3, dump is formed with shape in the same manner as in Example 1, the difference lies in the coals to be stored
Amount is about 19,664 tons, and confirms the transformation of dump periphery temperature and periphery water content in the same manner as example 1
Transformation.For the periphery temperature of dump, other than the mean temperature obtained in the same manner as in example 1, further define most
The transformation of big temperature.Pressed as exhibition, as the situation of embodiment 1, exhibition be pressed on the peripheral part of top surface and carry out (with to top surface one
Sample) and further carried out on corner.
However, in embodiment 3, without the distribution of surfactant and smears to dump.It is small that watering carries out 8 daily
When (watering amount be 176 tons) in 8 hours, wherein from store coal the 3rd day to the 16th day be initial stage watering, and from the 17th day
Proceed by regular watering.Periodically watering is divided into three phases.First stage is the 17th day to the 28th day from being store coal
Stage sprinkles water and carries out daily 8 hours (the watering amount in 8 hours is 176 tons).Second stage be from being store coal the 31st day to
The stage of the 34th day carries out weekly the watering (the watering amount in 8 hours is 176 tons) of 8 hours twice.Phase III is from storage coal
The stage of the 38th day to the 45th day is started, watering carries out weekly 8 hours (the watering amount in 8 hours is 176 tons).Embodiment 3
In watering amount shown in the following table 4.
[table 4]
| The number of days of process | Watering amount (t) | |
| 1,2 | Without watering | |
| Initial stage sprinkles water | 3~16 | 176t/ days |
| Periodically watering | 17~28 | 176t/2 days |
| ↓ | 31~34 | (176t) × 2 times/week |
| ↓ | 38~45 | 176t/ weeks |
Figure 10 A show the mean temperature transformation (periphery temperature) of the dump of embodiment 3.In addition, Figure 10 B show implementation
The maximum temperature transformation (periphery temperature) of the dump of example 3.In addition, the storage coal that embodiment 3 is also shown in Figure 10 A and Figure 10 B starts
When water content and from being store coal the dump of the 2nd day and the 16th day periphery water content.Oneself of dump is understood by Figure 10 A
The effect sprinkled water of generating heat inhibits, and during entirely storage coal, mean temperature is controlled in less than 40 DEG C.In addition, by Figure 10 B
Understand that maximum temperature is controlled in 50 DEG C hereinafter, it is significantly lower than 60 DEG C as the upper limit of control temperature in storage coal.Although with
Water content when Examples 1 and 2 start compared to water content relative to storage coal dramatically increases, but it increases only several %.This meaning
Taste spontaneous heating and is suppressed and without the water content of unnecessarily increase coal.
(comparative example 1)
Figure 11 shows the schematic plan of the dump 1 in comparative example 1.In comparative example 1, although the shape of dump 1
It is almost the same with embodiment 1, but the amount of the coal to be stored is about 18,000 ton.As the situation of embodiment 1, surface is lived
Property agent is dispersed on dump 1.However, different from embodiment 1, in comparative example 1, without watering on dump 1, and will apply
Cloth agent is dispersed in dump 1 so that the coal particle in dump 1 is inhibited to be disintegrated.As smears, MC Ebatech are used
The Rikabond ET-39 of Corporation manufactures.After the thermocouple for temperature survey is installed, pass through portable power
Pump is coated the distribution of agent.
Measurement for temperature, by the installation of TC on side 12 by Figure 11 in circled numerals 1-42 represent position
(position of height 3m, horizontally spaced 5m, depth 1.5m from the ground).The temperature of each position is measured, and passes through average value
Provide the temperature of dump 1.Different from embodiment 1, exhibition pressure is carried out on entire top surface 11.
Figure 12 shows the temperature transition of the dump 1 in comparative example 1.In comparative example 1, the temperature of dump 1 is opened from storage coal
Begin the 5th day to continue to increase and reached 60 DEG C at the 22nd day or so, this is to store the upper limit that temperature is controlled in coal.Therefore, after stopping
Continuous temperature survey.In comparative example 1, due to not sprinkling water, it is to be appreciated that even if pressing and spreading smears by opening up
Also it can not inhibit the raising of temperature.
(comparative example 2)
Figure 13 shows the schematic plan of the dump 1 in comparative example 2.In comparative example 2, the shape of dump 1 is substantially
Square truncated cone shape, and its coal amount is about 72,900 tons.As the situation of embodiment 1, dissemination surface activating agent, but not
Spread smears.
In comparative example 2, different from comparative example 1, press without exhibition, only sprinkle water to side 12.From being store coal
Start to sprinkle water within 4th day.However, glide since watering has started 3 hours inside points coals, after the situation of observation a period of time, from
Watering is switched to daily 7 hours (initial stage watering) by storage coal from having started the 12nd day.Initial stage watering continues to from being store coal
18th day, and by the regular watering for being switched to every 7 hours 2 days of sprinkling water from the 19th day.However, due in the regular watering phase
Between temperature be easy to increase, thus carried out from the 25th day periodically watering in daily 7 hours.Further, since it was surveyed at the 38th day in temperature
Spontaneous heating is observed other than amount portion, by the continuous watering for being changed to daily 24 hours of periodically sprinkling water from the 38th day.Mistake in comparative example 2
Watering amount shown in the following table 5.
[table 5]
Figure 14 shows the mean temperature of dump 1 and the transformation of maximum temperature in comparative example 2.With in the same manner as in Example 1
Mode measure the temperature of dump.It can confirm that even if mean temperature was increased to about at the 14th day or so from being store coal by Figure 14
50 DEG C and tend to decline later, maximum temperature is more than as controlling 60 DEG C of temperature between the 10th day and the 17th day.As above institute
It states, regardless of whether watering, is all not observed the effect that inhibits spontaneous heating the same with Examples 1 and 2 in comparative example 2.
(comparative example 3)
Figure 15 shows the schematic plan of the dump 1 in comparative example 3.In comparative example 3, the situation one with comparative example 2
Sample, the shape of dump 1 are substantially square truncated cone shape, and its coal amount is about 32,690 tons.Neither dissemination surface activating agent
Also smears is not spread.
In comparative example 3, by the installation of TC in the position represented by the circled numerals 1-4 in Figure 15, and dump 1 is measured
Temperature.The method for installing thermocouple is in the same manner as in Example 1.In addition, in comparative example 3, sprinkled water to entire dump 1 and
It is pressed without exhibition.By watering device (water sprinkler) mounted on the position represented by the circle in Figure 15, and the 13rd day from being store coal opens
Beginning sprinkles water.Substantially, it is persistently sprinkled water (24 hours), but small without watering or daily progress 6-7 during only 9 days
When sprinkle water, this depends on temperature condition etc. of (70 days) coal during storage coal.In addition, according to coal from the mode of transport and coal of dump 1
Water sprinkler is removed in the temperature condition addition of heap 1.Coal is successive from the carrying of dump 1 upper left corner and the lower left corner shown in Figure 15
It carries out.Watering amount in comparative example 3 is shown in the following table 6.
[table 6]
| The number of days of process | Watering hour/day | Watering amount (t) |
| 1~12 | Without watering | |
| 13 | 6 | 66 |
| 14 | 24 | 288 |
| 15,16 | 24 | 408 |
| 17~19 | 7 | 105 |
| 20~22 | 24 | 504 |
| 23 | 24 | 840 |
| 24~35 | 24 | 864 |
| 36 | 0 | 0 |
| 37~40 | 24 | 864 |
| 41 | 24 | 744 |
| 42,43 | 24 | 648 |
| 44~52 | 24 | 576 |
| 53 | 0 | 0 |
| 54,55 | 24 | 72 |
| 56 | 24 | 120 |
| 57 | 6 | 72 |
| 58 | 24 | 288 |
| 59 | 24 | 360 |
| 60~62 | 24 | 288 |
| 63,64 | 24 | 312 |
| 65 | 24 | 264 |
| 66 | 24 | 312 |
| 67 | 0 | 0 |
| 68,69 | 24 | 192 |
| 70 | 4 | 20 |
Figure 16 shows the maximum temperature of coal in comparative example 3.Due to all not sprinkling water until the 12nd day from being store coal,
The maximum temperature for causing coal is more than 60 DEG C of control temperature, is sprinkled water since the 13rd day, but temperature continued raising up to the 14th day,
And temperature reaches 79 DEG C.Temperature was begun to decline from the 15th day, reached 47 DEG C at the 16th day.After the 21st day, temperature is still below
30℃。
Table 7 shows the various conditions of above-described embodiment 1-3 and comparative example 1-3.
[table 7]
Table 8 shows the data related with the coal amount in embodiment 1-3 and comparative example 1-3 and watering amount.
[table 8]
(* 1) in comparative example 1, due to not sprinkling water, not about sprinkling water (entire dump and dump with maximum
Side) when per 1m3The data of the coal amount of watering amount.In addition, the coal amount in region of not sprinkling water is the coal amount in entire dump.
(* 2) in comparative example 3, due to being sprinkled water to entire dump, the coal amount in region of sprinkling water is in entire dump
Coal amount, and not data about the coal amount in region of not sprinkling water.In addition, since during the experiment does not change coal amount, Gu Guan
Every 1m when maximum is sprinkled water3The data of the coal amount of watering amount are omitted.
1m during the maximum watering shown in table 83The coal amount of watering amount can be considered as one and represent spontaneous heating of the water to coal
The index of the size of inhibition.That is, it illustrates the coal amount increase with unit watering amount, can be spilt with less
Water inhibits the spontaneous heating of a greater amount of coals, and in other words, watering efficiency is excellent.Referring to table 8, from this view point, it is known that implement
The watering efficiency of example 1-3 is better than the watering efficiency of comparative example 2.
(summary)
It can obtain to draw a conclusion from above-described embodiment and comparative example.
(1) it observes through progress initial stage watering, the spontaneous heating of coal when storage coal starts can be suppressed, and when coal can be long
Between store.
(2) observe what is do not sprinkled water and controlled in about 1 to 2 month after periodically watering is switched to from initial stage watering
Possibility.
(3) spontaneous heating can be inhibited in the case of no smears and control water content by observing.
(4) it observes and controls the temperature of entire dump even if only sprinkling water on side.
Symbol description
1 dump
2 coal yard institutes
11 top surfaces
12 sides
The peripheral part of 13 top surfaces
14 paths
15 ends
16 corners
Claims (10)
1. a kind of storage coal measures system, including：
For storing the threshing ground of coal；
By the way that the coal to be accumulated to the dump of truncated cone shape to be formed on the threshing ground, the dump have top surface and
Side；
The exhibition of the dump is pressed to press equipment for opening up；
For the water sprinkler sprinkled water to the dump；And
Wherein, at least peripheral part of the top surface of the dump presses the exhibition pressure of equipment, and the side warp of the dump through the exhibition
The water sprinkler watering.
2. storage coal measures system as described in claim 1, wherein corner of the dump on side is pressed through exhibition.
3. storage coal measures system as claimed in claim 1 or 2 further comprises chemical agent spreading to the coal or described
At least one chemical agent dissemination apparatus on the surface of dump.
4. storage coal measures system as claimed any one in claims 1 to 3, wherein the exhibition pressure equipment is heavy-duty machinery.
5. a kind of method for storing coal, includes the following steps：
The dump of truncated cone shape is formed by the way that the coal is accumulated on threshing ground, the dump has top surface and side；
Exhibition is depressed into less the peripheral part of the top surface of the dump；And
It sprinkles water on the side of the dump through exhibition pressure.
6. the method for storage coal as claimed in claim 5, wherein exhibition is included in side Shang Zhanya angles the step of pressing the dump
Portion.
7. such as the method for storage coal described in claim 5 or 6, wherein, it is described in the step of sprinkling water on dump, it determines daily
The watering time, it is from starting to the period of the 10th~14 day to make watering frequency from being store coal after the 10th~14 day
The half for frequency of sprinkling water.
8. the method for the storage coal as described in any one of claim 5 to 7 further comprises spreading to chemical agent described
At least one step on the surface of coal or the dump.
9. the method for storage coal as claimed in claim 8, wherein, described the step of spreading chemical agent, is included surfactant
It is spread to as chemical agent on the coal before forming the dump.
10. the method for storage coal as claimed in claim 8 or 9, wherein, described the step of spreading chemical agent, includes to be used to protect
The smears for holding the shape of the dump is spread to as chemical agent on the dump.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015169508 | 2015-08-28 | ||
| JP2015-169508 | 2015-08-28 | ||
| PCT/JP2016/073483 WO2017038408A1 (en) | 2015-08-28 | 2016-08-09 | Coal storage system and coal storage method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108137234A true CN108137234A (en) | 2018-06-08 |
Family
ID=58187300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680056574.8A Withdrawn CN108137234A (en) | 2015-08-28 | 2016-08-09 | The method for storing coal measures system and storage coal |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6870614B2 (en) |
| CN (1) | CN108137234A (en) |
| WO (1) | WO2017038408A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7166314B2 (en) * | 2020-08-03 | 2022-11-07 | 栗田工業株式会社 | Management system, management device, management method and program |
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- 2016-08-09 WO PCT/JP2016/073483 patent/WO2017038408A1/en active Application Filing
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Also Published As
| Publication number | Publication date |
|---|---|
| JP6870614B2 (en) | 2021-05-12 |
| WO2017038408A1 (en) | 2017-03-09 |
| JPWO2017038408A1 (en) | 2018-07-12 |
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Application publication date: 20180608 |