CN108317397A - Mine is anti-from the carrying method and conveying device that use carbon dioxide - Google Patents
Mine is anti-from the carrying method and conveying device that use carbon dioxide Download PDFInfo
- Publication number
- CN108317397A CN108317397A CN201810155930.2A CN201810155930A CN108317397A CN 108317397 A CN108317397 A CN 108317397A CN 201810155930 A CN201810155930 A CN 201810155930A CN 108317397 A CN108317397 A CN 108317397A
- Authority
- CN
- China
- Prior art keywords
- carbon dioxide
- gas
- pipe
- temperature
- liquid mixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 348
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 173
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 173
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 50
- 239000002245 particle Substances 0.000 claims abstract description 36
- 239000003245 coal Substances 0.000 claims abstract description 29
- 230000001105 regulatory effect Effects 0.000 claims abstract description 29
- 238000001816 cooling Methods 0.000 claims abstract description 28
- 238000002156 mixing Methods 0.000 claims abstract description 26
- 230000006641 stabilisation Effects 0.000 claims description 14
- 238000011105 stabilization Methods 0.000 claims description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 9
- 230000002269 spontaneous effect Effects 0.000 abstract description 8
- 229960004424 carbon dioxide Drugs 0.000 description 125
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 9
- 229910052799 carbon Inorganic materials 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 230000008859 change Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 239000004408 titanium dioxide Substances 0.000 description 5
- 241000790917 Dioxys <bee> Species 0.000 description 4
- 230000006837 decompression Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000003276 anti-hypertensive effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/08—Rock dusting of mines; Depositing other protective substances
Abstract
It is anti-from the carrying method for using carbon dioxide that the invention discloses a kind of mines, includes the following steps：It pressurizes to gaseous carbon dioxide, forms gaseous carbon dioxide；Cool down to gaseous carbon dioxide, forms gas-liquid mixed carbon dioxide；Reducing pressure by regulating flow is carried out to gas-liquid mixed carbon dioxide；Gas-liquid mixed carbon dioxide is depressured；Gas-liquid mixed carbon dioxide is cooled down, gas-particle two-phase mixing carbon dioxide is formed；Gas-particle two-phase mixing carbon dioxide is sprayed into mine and loses coal.The invention also discloses a kind of mines to prevent using the conveying device of carbon dioxide certainly, including pressue device, heat sink, reducing pressure by regulating flow part, dropping equipment, cooling device and the nozzle being sequentially communicated.The carrying method and conveying device, gaseous carbon dioxide can be made effectively to be converted to gas-particle two-phase mixing carbon dioxide, it needs to draw a large amount of heat when using gas-particle two-phase carbon dioxide sublimes, so that the temperature that mine loses coal reduces, effectively prevent spontaneous combustion of remaining coal.
Description
Technical field
The invention belongs to inhibit the technical field of mine spontaneous combustion of remaining coal using carbon dioxide, it is anti-to be specifically related to a kind of mine
From the carrying method and conveying device for using carbon dioxide.
Background technology
The environment of the deep mining meet Lingao low temperature of mine, the in addition heat release of equipment can also be such that environment temperature increases.Cause
This heat evil problem is also always the great research direction of pit mining.
Currently, mine fire extinguishing mainly uses liquid carbon dioxide, it is primarily due to Residual coal in goaf and spontaneous combustion, and gaseous state occurs
Carbon dioxide density ratio air it is big, therefore the middle part or lower part in goaf can be stored in, be preferably covered on coal.
But absorption heat is relatively fewer during liquid carbon dioxide is changed one's profession as gaseous carbon dioxide, cooling-down effect
Difference.And liquid carbon dioxide frequently encounters the problem of plugging in transmission process, therefore often practice effect is general.Ventilation institute band
Live high-temperature condition can not be fully solved by carrying out refrigeration effect.
Invention content
It is an object of the invention to overcome above-mentioned deficiency in the prior art, it is anti-from using carbon dioxide to provide a kind of mine
Carrying method.The flow of the carrying method is simple, in transmission process, gaseous carbon dioxide can be made effectively to be converted to gas
Gu two-phase mixtures carbon dioxide needs to draw a large amount of heat when using gas-particle two-phase carbon dioxide sublimes, so that mine
Losing the temperature of coal reduces, and effectively prevent spontaneous combustion of remaining coal.
To achieve the above object, mine of the present invention it is anti-from the carrying method for using carbon dioxide the technical solution adopted is that：
Mine is anti-from the carrying method for using carbon dioxide, which is characterized in that includes the following steps：
Step 1: pressurizeing to gaseous carbon dioxide, the gaseous carbon dioxide that pressure is 6MPa~7.9MPa is formed；
Step 2: cool down to the gaseous carbon dioxide, make the temperature of the gaseous carbon dioxide from 293K~
303K is down to 278K~283K, forms gas-liquid mixed carbon dioxide；
Step 3: carrying out reducing pressure by regulating flow to the gas-liquid mixed carbon dioxide, the gas-liquid that pressure is 3MPa~6MPa is formed
Mix carbon dioxide；
Step 4: being depressured to the gas-liquid mixed carbon dioxide that pressure is 3MPa~6MPa, it is 0.1MPa to form pressure
The gas-liquid mixed carbon dioxide of~0.52MPa；
Step 5: being cooled down to the gas-liquid mixed carbon dioxide that pressure is 0.1MPa~0.52MPa, forming temperature is
The gas-particle two-phase mixing carbon dioxide of 160K~213K；
Step 6: the gas-particle two-phase mixing carbon dioxide, which is sprayed to mine, loses coal.
Above-mentioned mine is anti-from the carrying method for using carbon dioxide, it is characterised in that：In the step 6, the gas
Gu two-phase mixtures carbon dioxide sprays to mine by pressurized nozzles and loses coal.
Gaseous carbon dioxide is effectively converted to gas-particle two-phase mixing carbon dioxide in order to effectively realize, and is not sent out
Raw plugging phenomenon, it is anti-from the conveying device for using carbon dioxide that the present invention also provides a kind of mines.The anti-spontaneous combustion of mine of the present invention
With the conveying device of carbon dioxide the technical solution adopted is that：A kind of conveying using such as above-mentioned delivery carbon dioxide
Device, which is characterized in that including：
Pressue device, for pressurizeing gaseous carbon dioxide to form pressure as the gaseous carbon dioxide of 6MPa~7.9MPa；
Heat sink, for cooling down to the gaseous carbon dioxide, make the temperature of the gaseous carbon dioxide from
293K~303K drops to 278K~283K, forms gas-liquid mixed carbon dioxide；
Reducing pressure by regulating flow part, for the gas-liquid mixed carbon dioxide carry out reducing pressure by regulating flow, is formed pressure for 3MPa~
The gas-liquid mixed carbon dioxide of 6MPa；
Dropping equipment, for being depressured to the gas-liquid mixed carbon dioxide that pressure is 3MPa~6MPa, forming pressure is
The gas-liquid mixed carbon dioxide of 0.1MPa~0.52MPa；
Cooling device, for pressure be 0.1MPa~0.52MPa gas-liquid mixed carbon dioxide temperature from 278K~
283K is cooled to 160K~123K, forms gas-particle two-phase mixing carbon dioxide；
Nozzle loses coal for the gas-particle two-phase mixing carbon dioxide to be sprayed to mine；
The pressue device, heat sink, reducing pressure by regulating flow part, dropping equipment, cooling device and nozzle are sequentially communicated.
Above-mentioned conveying device, it is characterised in that：The pressue device is gas boosting valve.
Above-mentioned conveying device, it is characterised in that：The heat sink includes inner tube and is arranged on the outside of said inner tube
Casing, and temperature control system of the carbon dioxide temperature control in 278K~283K for the heat sink will to be flowed through；
One end of said inner tube is connected with the pressue device, and the other end of said inner tube is connected with reducing pressure by regulating flow part, described interior
The cavity for containing cooling water is constituted between pipe and casing, the left end of described sleeve pipe is provided with left sealing plate, the right side of described sleeve pipe
End is provided with right sealing plate, and the top of described sleeve pipe left end is provided with the water inlet communicated with the cavity, described sleeve pipe right end
Lower part is provided with the water outlet communicated with the cavity, and the left end of said inner tube is connected with right end by feeding back pipe；
The temperature control system includes：
Temperature sensor, for detect the temperature through treated the carbon dioxide of cooling down；
First solenoid valve, for carbon dioxide temperature be 278K~283K when it is open-minded, be higher than in carbon dioxide temperature
It is closed when 278K~283K；
Second solenoid valve, for carbon dioxide temperature be higher than 278K~283K when it is open-minded, carbon dioxide be 278K~
It is closed when 283K；
Controller, temperature signal and the first solenoid valve of control and second solenoid valve for receiving temperature sensor output are beaten
On or off is disconnected；
The input terminal of the controller connects with the temperature sensor, first solenoid valve and second solenoid valve with
The output end of the controller connects；
The temperature sensor is arranged is located at casing close to the side of the reducing pressure by regulating flow part, first electromagnetism in inner tube
Valve is arranged in inner tube close to one end of the reducing pressure by regulating flow part, and the second solenoid valve is arranged on the feedback pipe.
Above-mentioned conveying device, it is characterised in that：The outer wall of said inner tube is provided with the floor of multiple annulars.
Above-mentioned conveying device, it is characterised in that：The cooling device includes inner sleeve and is arranged outside the inner sleeve
The outer sleeve of side, the left end of the inner sleeve is provided with the first member plate for connecting the inner sleeve with outer sleeve, described interior
The right end of sleeve is provided with the right end plate for connecting the inner sleeve with outer sleeve, is filled out between the inner sleeve and outer sleeve
Filled with liquid nitrogen, it is provided with fluid inlet on the first member plate, fluid outlet is provided in the right end plate, is opened on the inner sleeve
The annular groove laid equipped with multiple intervals.
Above-mentioned conveying device, it is characterised in that：The nozzle includes that the first stabilization is managed, the second stabilization pipe and third are stablized
Pipe, the described second caliber for stablizing pipe are more than the first caliber for stablizing pipe, and the caliber of the third stabilization pipe is more than second and stablizes
The caliber of pipe, described first, which stablizes pipe, is connected with the second stabilization pipe by the first diffuser, and the second stabilization pipe and third are steady
Fixed tube is connected by the second diffuser.
Above-mentioned conveying device, it is characterised in that：The first strainer, second flaring are provided on first diffuser
The second strainer is provided on pipe；The mesh aperture of first strainer is 2cm, and the mesh aperture of second strainer is 1cm.
Above-mentioned conveying device, it is characterised in that：The reducing pressure by regulating flow part is reducing pipe.
Compared with the prior art, the present invention has the following advantages：
1, the flow of carrying method of the present invention is simple, can gaseous carbon dioxide be effectively converted to gas-particle two-phase and mixed
Carbon dioxide, and plugging phenomenon will not occur.
2, carrying method of the present invention can transfer out gas-particle two-phase mixing carbon dioxide, and titanium dioxide is mixed by gas-particle two-phase
Carbon loses coal to mine and cools down, and needs to draw a large amount of heat when gas-particle two-phase carbon dioxide sublimes are effectively utilized, from
And the temperature that mine loses coal is reduced, it effectively prevent spontaneous combustion of remaining coal.
3, the structure of conveying device of the present invention is simple, effective, can effectively realize gaseous carbon dioxide being converted to gas
Gu two-phase mixtures carbon dioxide improves the validity that spontaneous combustion of remaining coal prevents.
4, the structure of the heat sink in conveying device of the present invention is simple, can effectively realize and be cooled to carbon dioxide
Target temperature can effectively detect the temperature of output carbon dioxide, when output carbon dioxide temperature is not up to standard, additionally it is possible into
Cooling is handled row again.
5, the cooling device in conveying device of the present invention is cooled down by the way of liquid nitrogen, can effectively be dropped carbon dioxide
Temperature is to target temperature 160K~123K.Also, by the way that multiple annular grooves are arranged on inner sleeve, it is effectively increased titanium dioxide
The heat exchange area of carbon, improves cooling-down effect.
6, the nozzle in conveying device of the present invention stablizes pipe, the second stabilization pipe and third by first and stablizes the caliber of pipe not
It is disconnected to become larger, so that the pressure of carbon dioxide becomes larger, and then gas-particle two-phase mixing carbon dioxide can fast and effectively be sprayed
Coal is lost to mine.
7, by the way that the first strainer and the second strainer are arranged on nozzle in conveying device of the present invention, to gas-particle two-phase titanium dioxide
Drikold in carbon carries out effective gradually separating and filtering, so as to make nozzle spray the solid that grain size is 1cm
Grain, the distillation of the carbon dioxide of this solid granular is faster.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Description of the drawings
Fig. 1 is the method flow diagram of carrying method of the present invention.
Fig. 2 is the structural schematic diagram of conveying device of the present invention.
Fig. 3 is the structural schematic diagram of heat sink in conveying device of the present invention.
Fig. 4 is the schematic block circuit diagram of temperature control system in conveying device of the present invention.
Fig. 5 is the structural schematic diagram of cooling device in conveying device of the present invention.
Fig. 6 is the structural schematic diagram of nozzle in conveying device of the present invention.
Reference sign:
1-pressue device；2-heat sinks；2-1-inner tube；
2-2-casing；2-3-water inlet；2-4-water outlet；
The left sealing plates of 2-5-；The right sealing plates of 2-6-；2-7-floor；
2-8-feedback pipe；2-9-temperature sensor；The first solenoid valves of 2-10-；
2-11-second solenoid valve；2-12-controller；3-reducing pressure by regulating flow parts；
4-first pressure sensors；5-dropping equipments；6-second pressure sensors；
7-cooling devices；7-1-inner sleeve；7-2-outer sleeve；
7-3-liquid nitrogen；7-4-first member plate；7-5-right end plate；
7-6-fluid inlet；7-7-fluid outlet；7-8-annular groove；
8-nozzles；8-1-first stablizes pipe；8-2-second stablizes pipe；
8-3-third stablizes pipe；The first diffusers of 8-4-；The second diffusers of 8-5-；
The first strainers of 8-7-；The second strainers of 8-8-.
Specific implementation mode
A kind of mine as shown in Figure 1 is anti-from the carrying method for using carbon dioxide, includes the following steps：
Step 1: pressurizeing to gaseous carbon dioxide, the gaseous carbon dioxide that pressure is 6MPa~7.9MPa is formed；
Step 2: cool down to the gaseous carbon dioxide, make the temperature of the gaseous carbon dioxide from 293K~
303K is down to 278K~283K, forms gas-liquid mixed carbon dioxide；
Step 3: carrying out reducing pressure by regulating flow to the gas-liquid mixed carbon dioxide, the gas-liquid that pressure is 3MPa~6MPa is formed
Mix carbon dioxide；
Step 4: being depressured to the gas-liquid mixed carbon dioxide that pressure is 3MPa~6MPa, it is 0.1MPa to form pressure
The gas-liquid mixed carbon dioxide of~0.52MPa；
Step 5: being cooled down to the gas-liquid mixed carbon dioxide that pressure is 0.1MPa~0.52MPa, forming temperature is
The gas-particle two-phase mixing carbon dioxide of 160K~213K；
Step 6: the gas-particle two-phase mixing carbon dioxide, which is sprayed to mine, loses coal.
In the present embodiment, which can effectively realize the conveying to carbon dioxide, and plugging will not occur, and
Gas-particle two-phase mixing carbon dioxide can be transferred out, losing coal to mine by gas-particle two-phase mixing carbon dioxide cools down, and has
Effect needed when gas-particle two-phase carbon dioxide sublimes are utilized draw a large amount of heat so that mine lose coal temperature drop
It is low, it effectively prevent spontaneous combustion of remaining coal.
In the present embodiment, in the carrying method, in the pressurized operation of step 1, it can be ensured that in the cooling of subsequent step two
What is still exported after operation is gaseous carbon dioxide；In step 2 temperature-fall period, gas-liquid mixed dioxy can be effectively generated
Change carbon, convenient for carbon dioxide conveying without causing plugging；The decompression of step 3 and step 4 be because：Solid-state dioxy first
Change carbon is tapped in three phase point or three-phase can just be directly sublimed into gaseous state, absorb a large amount of heat.Next is divided into two sections and goes to be depressured, effect
Fruit can be than directly once decompression be more preferable, because carbon dioxide is a kind of object that phase-state change can all be occurred by temperature and pressure change
Matter, therefore be depressured in two steps, even if back antihypertensive effect is bad, subsequent decompression can also make up.The cooling of step 5 is
Temperature is required in order to effectively meet three phase point.
In the present embodiment, in the step 6, the gas-particle two-phase mixing carbon dioxide sprays to mine by pressurized nozzles
Well loses coal.It can effectively, quickly by gas-particle two-phase mixing carbon dioxide jet go out.
A kind of mine as shown in Figure 2 is anti-from the conveying device for using carbon dioxide, including：
Pressue device 1, for pressurizeing gaseous carbon dioxide to form pressure as the gaseous state titanium dioxide of 6MPa~7.9MPa
Carbon；
Heat sink 2, for cooling down to the gaseous carbon dioxide, make the temperature of the gaseous carbon dioxide from
293K~303K drops to 278K~283K, forms gas-liquid mixed carbon dioxide；
Reducing pressure by regulating flow part 3, for the gas-liquid mixed carbon dioxide carry out reducing pressure by regulating flow, is formed pressure for 3MPa~
The gas-liquid mixed carbon dioxide of 6MPa；
Dropping equipment 5, for being depressured to the gas-liquid mixed carbon dioxide that pressure is 3MPa~6MPa, forming pressure is
The gas-liquid mixed carbon dioxide of 0.1MPa~0.52MPa；
Cooling device 7, for pressure be 0.1MPa~0.52MPa gas-liquid mixed carbon dioxide temperature from 278K~
283K is cooled to 160K~123K, forms gas-particle two-phase mixing carbon dioxide；
Nozzle 8 loses coal for the gas-particle two-phase mixing carbon dioxide to be sprayed to mine；
The pressue device 1, heat sink 2, reducing pressure by regulating flow part 3, dropping equipment 5, cooling device 7 and nozzle 8 connect successively
It is logical.
In the present embodiment, the structure of the conveying device is simple, effective, can effectively realize and convert gaseous carbon dioxide
For gas-particle two-phase mixing carbon dioxide, coal is lost to mine by gas-particle two-phase mixing carbon dioxide and is cooled down, it is effective to utilize
It needs to draw a large amount of heat when gas-particle two-phase carbon dioxide sublimes, so that the temperature that mine loses coal reduces, it is effectively anti-
Only spontaneous combustion of remaining coal.
In the present embodiment, the pressue device 1 is gas boosting valve.
As shown in figure 3, the heat sink 2 includes inner tube 2-1 and the casing 2-2 being arranged on the outside of said inner tube 2-1, with
And temperature control system of the carbon dioxide temperature control in 278K~283K for the heat sink 2 will to be flowed through；In described
One end of pipe 2-1 is connected with the pressue device 1, and the other end of said inner tube 2-1 is connected with reducing pressure by regulating flow part 3, described
The cavity for containing cooling water is constituted between inner tube 2-1 and casing 2-2, the left end of described sleeve pipe 2-2 is provided with left sealing plate 2-
The right end of 5, described sleeve pipe 2-2 are provided with right sealing plate 2-6, and the top of described sleeve pipe 2-2 left ends is provided with to be communicated with the cavity
Water inlet 2-3, the lower part of described sleeve pipe 2-2 right ends is provided with the water outlet 2-4 communicated with the cavity, said inner tube 2-1
Left end and right end be connected by feeding back pipe 2-8.
As shown in figure 4, the temperature control system includes：
Temperature sensor 2-9, for detect the temperature through treated the carbon dioxide of cooling down；
First solenoid valve 2-10, for open-minded when carbon dioxide temperature is 278K~283K, in carbon dioxide temperature height
It is closed when 278K~283K；
Second solenoid valve 2-11, for carbon dioxide temperature be higher than 278K~283K when it is open-minded, be in carbon dioxide
It is closed when 278K~283K；
Controller 2-12, temperature signal for receiving temperature sensor 2-9 output and control the first solenoid valve 2-10 and
Second solenoid valve 2-11 is turned on and off；
The input terminal of the controller 2-12 connects with the temperature sensor 2-9, the first solenoid valve 2-10 and
Two solenoid valve 2-11 connect with the output end of the controller 2-12；
The temperature sensor 2-9 is arranged is located at casing 2-2 close to the side of the reducing pressure by regulating flow part 3, institute in inner tube 2-1
The first solenoid valve 2-10 is stated to be arranged in inner tube 2-1 close to one end of the reducing pressure by regulating flow part 3, the second solenoid valve 2-11 settings
On the feedback pipe 2-8.
In the present embodiment, the heat sink 2 when in use, gaseous carbon dioxide from one end of inner tube 2-1 enter and from
The other end of inner tube 2-1 flows into reducing pressure by regulating flow part 3, and gaseous carbon dioxide passes through inner tube 2-1 when flowing through said inner tube 2-1
Cooling water between casing 2-2 in cavity carries out cooling processing to carbon dioxide, and is detected by the temperature sensor 2-9
Whether the temperature through cooling treated carbon dioxide reaches target temperature 278K~283K, if the temperature of carbon dioxide reaches
Target temperature 278K~283K, controller 2-12 then control the first solenoid valve 2-10 and open and make second solenoid valve 2- simultaneously
11 keep in off position, so that carbon dioxide outflow inner tube 2-1 enters in reducing pressure by regulating flow part 3, on the contrary, if titanium dioxide
Temperature after carbon cooling does not reach 278K~283K, and controller 2-12 then controls the first solenoid valve 2-10 and closes and open simultaneously
Second solenoid valve 2-11 makes carbon dioxide pass through the beginning that feedback pipe 2-8 is back to inner tube 2-1 from the end of inner tube 2-1, makes two
Carbonoxide again passes by cooling, until reaching target temperature 278K~283K.
In the present embodiment, the structure of the heat sink 2 is simple, can effectively realize carbon dioxide being cooled to target
Temperature.
As shown in figure 3, the outer wall of said inner tube 2-1 is provided with the floor 2-7 of multiple annulars.By the way that multiple annulars are arranged
Floor 2-7, is effectively increased heat exchange area, achieves better cooling-down effect.
As shown in Fig. 2, detecting carbon dioxide by the way that first pressure sensor 4 is arranged in the inlet of dropping equipment 5
Pressure, and detect the pressure of carbon dioxide by the way that second pressure sensor 6 is arranged in the exit of dropping equipment 5.
As shown in figure 5, the cooling device 7 includes inner sleeve 7-1 and the outer sleeve being arranged on the outside of the inner sleeve 7-1
7-2, the left end of the inner sleeve 7-1 are provided with the first member plate 7-4 for connecting the inner sleeve 7-1 with outer sleeve 7-2, institute
The right end for stating inner sleeve 7-1 is provided with right end plate 7-5 for connecting the inner sleeve 7-1 with outer sleeve 7-2, the inner sleeve
It is filled between cylinder 7-1 and outer sleeve 7-2 on liquid nitrogen 7-3, the first member plate 7-4 and is provided with fluid inlet 7-6, the right end plate
It is provided on 7-5 and offers the annular groove 7-8 that multiple intervals are laid on fluid outlet 7-7, the inner sleeve 7-1.
In the present embodiment, the cooling device 7 is cooled down by the way of liquid nitrogen, can be effectively cooled to carbon dioxide
Target temperature 160K~123K.Also, by the way that multiple annular groove 7-8 are arranged on inner sleeve 7-1, it is effectively increased dioxy
The heat exchange area for changing carbon, improves cooling-down effect.
As shown in fig. 6, the nozzle 8, which includes the first stabilization pipe 8-1, the second stabilization pipe 8-2 and third, stablizes pipe 8-3, institute
The caliber for stating the second stabilization pipe 8-2 is more than the first caliber for stablizing pipe 8-1, and the caliber that the third stablizes pipe 8-3 is more than second
Stablize the caliber of pipe 8-2, described first, which stablizes pipe 8-1 and second, stablizes pipe 8-2 by the first diffuser 8-4 connections, and described the
Two stabilization pipe 8-2 stablize pipe 8-3 with third and are connected by the second diffuser 8-5.
In the present embodiment, the nozzle 8 stablizes pipe 8-1, the second stabilization pipe 8-2 and third by first and stablizes pipe 8-3's
Caliber constantly becomes larger so that the pressure of carbon dioxide becomes larger, and then can by gas-particle two-phase mixing carbon dioxide quickly, have
The mine that sprays to of effect loses coal.
It is set as shown in fig. 6, being provided on the first diffuser 8-4 on the first strainer 8-7, the second diffuser 8-5
It is equipped with the second strainer 8-8；The mesh aperture of the first strainer 8-7 is 2cm, and the mesh aperture of the second strainer 8-8 is
1cm。
In the present embodiment, by the way that the first strainer 8-7 and the second strainer 8-8 is arranged, to consolidating in gas-particle two-phase carbon dioxide
Body carbon dioxide carries out effective gradually separating and filtering, this so as to make nozzle 8 spray the solid particle that grain size is 1cm
The distillation of the carbon dioxide of solid granular is faster.
In the present embodiment, the reducing pressure by regulating flow part 3 is reducing pipe.By using reducing pipe 3, can effectively realize to dioxy
Change the decompression of carbon, simple in structure, of low cost, antihypertensive effect is good.
The above is only presently preferred embodiments of the present invention, is not imposed any restrictions to the present invention, every according to the present invention
Technical spirit still falls within skill of the present invention to any simple modification, change and equivalent structure transformation made by above example
In the protection domain of art scheme.
Claims (10)
1. mine is anti-from the carrying method for using carbon dioxide, which is characterized in that include the following steps：
Step 1: pressurizeing to gaseous carbon dioxide, the gaseous carbon dioxide that pressure is 6MPa~7.9MPa is formed；
Step 2: cooling down to the gaseous carbon dioxide, the temperature of the gaseous carbon dioxide is made to be dropped from 293K~303K
To 278K~283K, gas-liquid mixed carbon dioxide is formed；
Step 3: carrying out reducing pressure by regulating flow to the gas-liquid mixed carbon dioxide, the gas-liquid mixed that pressure is 3MPa~6MPa is formed
Carbon dioxide；
Step 4: to pressure be 3MPa~6MPa gas-liquid mixed carbon dioxide be depressured, is formed pressure for 0.1MPa~
The gas-liquid mixed carbon dioxide of 0.52MPa；
Step 5: to pressure be 0.1MPa~0.52MPa gas-liquid mixed carbon dioxide cool down, is formed temperature for 160K~
The gas-particle two-phase mixing carbon dioxide of 213K；
Step 6: the gas-particle two-phase mixing carbon dioxide, which is sprayed to mine, loses coal.
2. mine according to claim 1 is anti-from the carrying method for using carbon dioxide, it is characterised in that：In the step
In six, the gas-particle two-phase mixing carbon dioxide sprays to mine by pressurized nozzles and loses coal.
3. a kind of conveying device using delivery carbon dioxide as described in claim 1, which is characterized in that including：
Pressue device (1), for pressurizeing gaseous carbon dioxide to form pressure as the gaseous carbon dioxide of 6MPa~7.9MPa；
Heat sink (2) makes the temperature of the gaseous carbon dioxide from 293K for cooling down to the gaseous carbon dioxide
~303K drops to 278K~283K, forms gas-liquid mixed carbon dioxide；
Reducing pressure by regulating flow part (3), for carrying out reducing pressure by regulating flow to the gas-liquid mixed carbon dioxide, it is 3MPa~6MPa to form pressure
Gas-liquid mixed carbon dioxide；
Dropping equipment (5), for being depressured to the gas-liquid mixed carbon dioxide that pressure is 3MPa~6MPa, forming pressure is
The gas-liquid mixed carbon dioxide of 0.1MPa~0.52MPa；
Cooling device (7), for pressure be 0.1MPa~0.52MPa gas-liquid mixed carbon dioxide temperature from 278K~
283K is cooled to 160K~123K, forms gas-particle two-phase mixing carbon dioxide；
Nozzle (8) loses coal for the gas-particle two-phase mixing carbon dioxide to be sprayed to mine；
The pressue device (1), heat sink (2), reducing pressure by regulating flow part (3), dropping equipment (5), cooling device (7) and nozzle
(8) it is sequentially communicated.
4. conveying device according to claim 3, it is characterised in that：The pressue device (1) is gas boosting valve.
5. conveying device according to claim 3, it is characterised in that：The heat sink (2) includes inner tube (2-1) and sets
Set the casing (2-2) on the outside of said inner tube (2-1), and the carbon dioxide temperature for the heat sink (2) will to be flowed through
Control the temperature control system in 278K~283K；One end of said inner tube (2-1) is connected with the pressue device (1), institute
The other end for stating inner tube (2-1) is connected with reducing pressure by regulating flow part (3), constitutes and is used between said inner tube (2-1) and casing (2-2)
The cavity of cooling water is contained, the left end of described sleeve pipe (2-2) is provided with left sealing plate (2-5), the right end setting of described sleeve pipe (2-2)
There are right sealing plate (2-6), the top of described sleeve pipe (2-2) left end to be provided with the water inlet (2-3) communicated with the cavity, the set
The lower part of pipe (2-2) right end is provided with the water outlet (2-4) communicated with the cavity, the left end and right end of said inner tube (2-1)
(2-8) is managed by feedback to be connected；
The temperature control system includes：
Temperature sensor (2-9), for detect the temperature through treated the carbon dioxide of cooling down；
First solenoid valve (2-10), for carbon dioxide temperature be 278K~283K when it is open-minded, be higher than in carbon dioxide temperature
It is closed when 278K~283K；
Second solenoid valve (2-11) is 278K in carbon dioxide for open-minded when carbon dioxide temperature is higher than 278K~283K
It is closed when~283K；
Controller (2-12), the temperature signal for receiving temperature sensor (2-9) output and the first solenoid valve of control (2-10)
It is turned on and off with second solenoid valve (2-11)；
The input terminal of the controller (2-12) connects with the temperature sensor (2-9), first solenoid valve (2-10) and
Second solenoid valve (2-11) connects with the output end of the controller (2-12)；
Temperature sensor (2-9) setting is located at casing (2-2) close to the one of the reducing pressure by regulating flow part (3) in inner tube (2-1)
Side, the first solenoid valve (2-10) setting is in inner tube (2-1) close to one end of the reducing pressure by regulating flow part (3), second electricity
Magnet valve (2-11) setting is on feedback pipe (2-8).
6. conveying device according to claim 5, it is characterised in that：The outer wall of said inner tube (2-1) is provided with multiple rings
The floor (2-7) of shape.
7. conveying device according to claim 3, it is characterised in that：The cooling device (7) include inner sleeve (7-1) and
The outer sleeve (7-2) being arranged on the outside of the inner sleeve (7-1), the left end of the inner sleeve (7-1) are provided with for will be described
The first member plate (7-4) of inner sleeve (7-1) and outer sleeve (7-2) connection, the right end of the inner sleeve (7-1) are provided with for by institute
The right end plate (7-5) for stating inner sleeve (7-1) and outer sleeve (7-2) connection, between the inner sleeve (7-1) and outer sleeve (7-2)
Filled with liquid nitrogen (7-3), it is provided with fluid inlet (7-6) on the first member plate (7-4), is provided on the right end plate (7-5)
Fluid outlet (7-7) offers the annular grooves (7-8) that multiple intervals are laid on the inner sleeve (7-1).
8. conveying device according to claim 3, it is characterised in that：The nozzle (8) include first stablize manage (8-1),
Second stablizes pipe (8-2) and third stabilization pipe (8-3), and the described second caliber for stablizing pipe (8-2) is more than the first stabilization and manages (8-1)
Caliber, the caliber that the third stablizes pipe (8-3) is more than second and stablizes the caliber for managing (8-2), and described first stablizes pipe (8-1)
Stablize pipe (8-2) with second to connect by the first diffuser (8-4), the second stabilization pipe (8-2) and third stablize pipe (8-3)
It is connected by the second diffuser (8-5).
9. conveying device according to claim 8, it is characterised in that：It is provided with first on first diffuser (8-4)
Strainer (8-7) is provided with the second strainer (8-8) on second diffuser (8-5)；The mesh hole of first strainer (8-7)
Diameter is 2cm, and the mesh aperture of second strainer (8-8) is 1cm.
10. conveying device according to claim 3, it is characterised in that：The reducing pressure by regulating flow part (3) is reducing pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810155930.2A CN108317397A (en) | 2018-02-24 | 2018-02-24 | Mine is anti-from the carrying method and conveying device that use carbon dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810155930.2A CN108317397A (en) | 2018-02-24 | 2018-02-24 | Mine is anti-from the carrying method and conveying device that use carbon dioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108317397A true CN108317397A (en) | 2018-07-24 |
Family
ID=62901230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810155930.2A Pending CN108317397A (en) | 2018-02-24 | 2018-02-24 | Mine is anti-from the carrying method and conveying device that use carbon dioxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108317397A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005035698A1 (en) * | 2003-10-15 | 2005-04-21 | S.S.P. B.V. | Method for treating coal piles, apparatus for applying said method and assembly of apparatus and a coal pile |
| CN202250149U (en) * | 2011-09-21 | 2012-05-30 | 李景阳 | Cooling, fireproof and fire-extinguishing system by using liquid carbon dioxide |
| US20120255745A1 (en) * | 2011-04-08 | 2012-10-11 | Walter Allan Brown | Coal Fire Extinguishment Method and Apparatus |
| CN202544902U (en) * | 2012-05-18 | 2012-11-21 | 哈尔滨健源煤矿救援装备有限公司 | Mining carbon dioxide fire extinguishing device |
| CN205307652U (en) * | 2015-10-07 | 2016-06-15 | 刘南林 | Stamp out forest fire's device |
| CN106640176A (en) * | 2016-12-14 | 2017-05-10 | 太原理工大学 | Method for preventing and treating spontaneous combustion disaster in coal mine goaf utilizing high thermal conductive fiber |
| CN207962112U (en) * | 2018-02-24 | 2018-10-12 | 西安科技大学 | Mine is anti-from the conveying device for using carbon dioxide |
-
2018
- 2018-02-24 CN CN201810155930.2A patent/CN108317397A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005035698A1 (en) * | 2003-10-15 | 2005-04-21 | S.S.P. B.V. | Method for treating coal piles, apparatus for applying said method and assembly of apparatus and a coal pile |
| US20120255745A1 (en) * | 2011-04-08 | 2012-10-11 | Walter Allan Brown | Coal Fire Extinguishment Method and Apparatus |
| CN202250149U (en) * | 2011-09-21 | 2012-05-30 | 李景阳 | Cooling, fireproof and fire-extinguishing system by using liquid carbon dioxide |
| CN202544902U (en) * | 2012-05-18 | 2012-11-21 | 哈尔滨健源煤矿救援装备有限公司 | Mining carbon dioxide fire extinguishing device |
| CN205307652U (en) * | 2015-10-07 | 2016-06-15 | 刘南林 | Stamp out forest fire's device |
| CN106640176A (en) * | 2016-12-14 | 2017-05-10 | 太原理工大学 | Method for preventing and treating spontaneous combustion disaster in coal mine goaf utilizing high thermal conductive fiber |
| CN207962112U (en) * | 2018-02-24 | 2018-10-12 | 西安科技大学 | Mine is anti-from the conveying device for using carbon dioxide |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205730064U (en) | A kind of dry powder foam is extinguishing apparatus combined | |
| CN202791341U (en) | Natural gas pressure regulating device with cold quantity output function | |
| CN207962112U (en) | Mine is anti-from the conveying device for using carbon dioxide | |
| CN105013587A (en) | Freeze grinding system | |
| CN103751937B (en) | Vehicle-mounted high-spraying Astrocytic brain tumor ejecting extinguishing device | |
| CN204918502U (en) | A energy recuperation system for buggy pressurization and feed arrangement | |
| CN217503347U (en) | Conveying device | |
| CN208087559U (en) | A kind of low temperature dewatering system | |
| CN108317397A (en) | Mine is anti-from the carrying method and conveying device that use carbon dioxide | |
| TWI499448B (en) | Continuous fine ash depressurization system | |
| US20200238295A1 (en) | Device for pulverization and explosion suppression of low carbon gas hydrate | |
| CN109707347B (en) | Pretreatment system and method for raw gas wellhead before pressurization | |
| CN208054450U (en) | A kind of low pressure bulk material air-transport system | |
| CN104310829A (en) | Device and method for producing alpha-semi-hydrated gypsum by utilizing industrial by-product gypsum by means of pneumatic autoclave | |
| CN108049907B (en) | Liquid CO used in mine 2 Refrigerating, fire preventing and extinguishing integrated system and method | |
| CN205042006U (en) | Extensive three -phase froth of mine foaming device | |
| CN204177213U (en) | Emergency cooling water gun for kiln | |
| CN212369906U (en) | Efficient recovery device for continuous double-suction treatment of tail gas | |
| CN104046395B (en) | Gas-solid mixed material pressure continuous-reduction system | |
| CN207648145U (en) | A kind of valve | |
| CN203513611U (en) | Multi-branch discharging inflatable cone device for transporting powdered coal | |
| CN203677812U (en) | Powder boiling device in powder storage tank | |
| CN209612887U (en) | A kind of supercritical reaction device discharge port | |
| CN111569627A (en) | Efficient recovery device and process for continuous double-suction treatment of tail gas | |
| US20200096237A1 (en) | Vortex tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180724 |