CN203593620U - Nitrogen making machine on well used for coal mine - Google Patents
Nitrogen making machine on well used for coal mine Download PDFInfo
- Publication number
- CN203593620U CN203593620U CN201320793446.5U CN201320793446U CN203593620U CN 203593620 U CN203593620 U CN 203593620U CN 201320793446 U CN201320793446 U CN 201320793446U CN 203593620 U CN203593620 U CN 203593620U
- Authority
- CN
- China
- Prior art keywords
- nitrogen
- air
- outlet
- vessel
- pressure
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Separation Of Gases By Adsorption (AREA)
Abstract
The utility model discloses a nitrogen making machine on the well used for a coal mine, which includes an air cleaning device and a nitrogen making device, wherein the air cleaning device includes an air compressor, an air vessel, an air cooling dryer, an activated carbon tower and an air storage vessel, the outlet of the air compressor is connected with the inlet of the air vessel, the outlet of the air vessel is connected with the inlet of the air cooling dryer, the outlet of the air cooling dryer is connected with the inlet of the activated carbon tower, and the outlet of the activated carbon tower is connected with the nitrogen making device through the air storage vessel; the nitrogen making device includes pressure swing absorbers and a nitrogen vessel, the inlets of the pressure swing absorbers are connected with the outlet of the air storage vessel of the air cleaning device, the outlets of the pressure swing absorbers are connected with the nitrogen vessel, and the outlet of the nitrogen vessel is connected with a flow meter which is provided with a nitrogen purity analysis meter. The nitrogen making machine on the well used for the coal mine is used in the coal mine operation, and has the advantages that the installation and the structure are simple, the investment is little, and the high purity nitrogen can be continuously injected into the well, which clauses the content of oxygen to decrease to below 10 percent or 3 percent, and at the same time, the gaseous concentration is diluted and the danger of the gas explosion is eliminated.
Description
Technical field
The utility model relates to a kind of for the aboveground Nitrogen plant that nitrogen is provided of colliery excavation.
Background technology
Easily there is gas explosion in colliery, threatens to people's life security in excavating.Coal mine gas from explosion, after being actually in colliery gas density and reaching limits of explosion (5-16%) and airborne oxygen meet the naked light violent chemical reaction that emits light and heat in a short period of time, thereby damage effect.The reason that reduces blast generation has following several: prevent naked light, starvation, reduction gas and oxygen concentration.The requirement that is directed to the above two is very harsh, is difficult to reach.Therefore can only start with from reducing gas and oxygen concentration aspect, treatment process of the prior art is mainly prepared nitrogen in down-hole with nitrogen car processed, is used for diluting gas density.But movable nitrogen making car, exists and invests greatly, uses inconvenience and the explosion-proof shortcoming of essential employing.In view of this, inventing a kind of cost simply uses safe colliery Nitrogen plant extremely urgent.
Utility model content
It is little that the utility model technical issues that need to address are to provide a kind of investment, installs and use the aboveground Nitrogen plant in simple colliery.
For addressing the above problem, technical solution adopted in the utility model is: the aboveground Nitrogen plant in a kind of colliery, it comprises air cleaning unit and nitrogen-making device, wherein refining plant comprises air compressor machine, air vessel, cooling driers, activated carbon tower and gas-holder, air compressor machine outlet connects air vessel import, air vessel outlet connects cooling driers import, and cooling driers outlet connects activated carbon tower import, and activated carbon tower outlet connects nitrogen-making device by gas-holder; Nitrogen-making device comprises pressure-variable adsorption device and nitrogen pot, the import of pressure-variable adsorption device connects the outlet of gas-holder in air cleaning unit, described in pressure-variable adsorption device outlet connection nitrogen pot, the outlet of nitrogen pot (7) arranges under meter (9), between described under meter (9) and nitrogen pot (7), be provided with nitrogen gas purity on-line monitoring device (10), described on-line monitoring device (10) comprises touch-screen, PLC module, nitrogen analyser and master system.
2, the aboveground Nitrogen plant in a kind of colliery according to claim 1, it is characterized in that: the model of described nitrogen gas purity analyser (9) is P860-4N, the model of described touch-screen is TPC7062KX, the model of described PLC module is S7-200, and the model of described master system is MODBUS.
Described pressure-variable adsorption device comprises two pressure-swing absorbers, in parallel use.
In described pressure-swing absorber for sorbent material is carbonaceous molecular sieve or modified RE X-type zeolite.
Between described air vessel and cooling driers, be provided with strainer.
The beneficial effect that adopts technique scheme to produce is: the utility model is applied in the operation of colliery, installation and simple in structure, invest little, can continue to down-hole to inject highly purified nitrogen, nitrogen can be by the nitrogen gas purity analyser on-line monitoring nitrogen gas purity in Nitrogen plant, make nitrogen gas purity reach 99.9%, and then the content that makes down-hole oxygen drops to below 10% or 3%, the concentration of also having diluted gas simultaneously, eliminate the danger of gas explosion, play to reduce and leak wind action and cooling effect, reach the spontaneous combustion heating and the spontaneous combustion that prevent coal, reduce the object of intensity of combustion.
Accompanying drawing explanation
Fig. 1 is the utility model equipment layout and schema;
Wherein: 1, air compressor machine, 2, air vessel, 3, cooling driers, 4, activated carbon tower, 5, gas-holder, 6, strainer, 7, nitrogen pot, 8, pressure-swing absorber 9, under meter, 10, flow detector.
Embodiment
Below in conjunction with accompanying drawing, utility model is described in further detail: as shown in Figure 1, this aboveground Nitrogen plant in novel a kind of colliery, it comprises air cleaning unit and nitrogen-making device, wherein refining plant comprises air compressor machine 1, air vessel 2, cooling driers 3, activated carbon tower 4 and gas-holder 5, air compressor machine 1 outlet connects air vessel 2 imports, air vessel 2 outlets connect cooling driers 3 imports, between air vessel 2 and cooling driers 3, be provided with strainer 9 cooling driers 3 outlets and connect activated carbon tower 4 imports, activated carbon tower 4 exports by gas-holder 5 and connects nitrogen-making device, nitrogen-making device comprises pressure-variable adsorption device and nitrogen pot 7, the import of pressure-variable adsorption device connects the outlet of gas-holder 5 in air cleaning unit, the outlet of pressure-variable adsorption device connects nitrogen pot 7, pressure-variable adsorption device comprises two pressure-swing absorbers 8, in parallel use, in pressure-swing absorber 8 for sorbent material is carbonaceous molecular sieve, the outlet of nitrogen pot 7 arranges under meter 9, between described under meter 9 and nitrogen pot 7, be provided with nitrogen gas purity on-line monitoring device, described on-line monitoring device comprises that model is TPC7062KX touch-screen, model is the S7-200PLC of Siemens module, model is P860-4N nitrogen analyser and MODBUS master system, nitrogen in nitrogen pot 7 is by under under meter 9 and pipeline input well.
Principle of work:
The first air compressor machine compression of air pressurization, makes air anhydrous dustless without oil by accurate filter, cooling driers, then enter gas-holder after activated carbon adsorption device filters, finally be imported into pressure change adsorption type nitrogen-making device, under the effect of pressure-variable adsorption, nitrogen oxygen is separated, thereby effectively enrichment nitrogen.The sorbent material using is a kind of carbonaceous molecular sieve, due to kinetic effect, the rate of diffusion of oxygen on carbonaceous molecular sieve is apparently higher than nitrogen (rate of diffusion oxygen: nitrogen is 40:1), and carbonaceous molecular sieve has very little micropore composition, and pore size distribution is between 0.3nm～1nm.Gas (oxygen) diffusion of small diameter is very fast, and the more molecular sieve solid phase that enters just can obtain the enrichment composition of nitrogen like this in gas phase, and nitrogen enters in nitrogen by pipeline.This device adopts two adsorption towers to compose in parallel a pressure swing adsorption system, pressurize alternately and adsorb and decompression desorption, make to obtain stable nitrogen gas stream, between between nitrogen pot and under meter, nitrogen gas purity on-line monitoring device is set, wherein nitrogen gas purity analyser P860-4N is arranged on pipeline.This detector is online analyser, useful range: 79.00～99.99%N
2.Measuring accuracy :≤± 0.2%.FS (79.00～99.00), if lower than setting limit, can take to report to the police, in order to guarantee the purity of nitrogen of Nitrogen plant gained, model is also set is TPC7062KX touch-screen to this on-line monitoring device in addition, be used for inputting instruction or display data, carry out New system Logic Analysis and control by PLC module and upper computer, to guarantee the moment monitoring to nitrogen gas purity.This technology, by those skilled in the art are known, repeats no more herein.
Fire-fighting principle: note nitrogen fp essence is in the zone of oxidation of worked-out section or injects the nitrogen of certain flow in flame range, and its oxygen level is dropped to below 10% or 3%, reaches the object of fire prevention, fire extinguishing and inhibition gas explosion.
Claims (4)
1. the aboveground Nitrogen plant in colliery, it is characterized in that: it comprises air cleaning unit and nitrogen-making device, wherein refining plant comprises air compressor machine (1), air vessel (2), cooling driers (3), activated carbon tower (4) and gas-holder (5), air compressor machine (1) outlet connects air vessel (2) import, air vessel (2) outlet connects cooling driers (3) import, cooling driers (3) outlet connects activated carbon tower (4) import, and activated carbon tower (4) outlet connects nitrogen-making device by gas-holder (5); Nitrogen-making device comprises pressure-variable adsorption device and nitrogen pot (7), the import of pressure-variable adsorption device connects the outlet of gas-holder (5) in air cleaning unit, the outlet of pressure-variable adsorption device connects nitrogen pot (7), the outlet of described nitrogen pot (7) arranges under meter (9), between described under meter (9) and nitrogen pot (7), be provided with nitrogen gas purity on-line monitoring device (10), on-line monitoring device (10) mainly comprises touch-screen, PLC module, nitrogen analyser and master system.
2. the aboveground Nitrogen plant in a kind of colliery according to claim 1, it is characterized in that: the model of described nitrogen gas purity analyser (9) is P860-4N, the model of described touch-screen is TPC7062KX, the model of described PLC module is S7-200, and the model of described master system is MODBUS.
3. the aboveground Nitrogen plant in a kind of colliery according to claim 1 and 2, is characterized in that: described pressure-variable adsorption device comprises two pressure-swing absorbers (8), in parallel use.
4. the aboveground Nitrogen plant in a kind of colliery according to claim 3, is characterized in that: in described pressure-swing absorber (8) for sorbent material is carbonaceous molecular sieve or modified RE X-type zeolite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320793446.5U CN203593620U (en) | 2013-12-04 | 2013-12-04 | Nitrogen making machine on well used for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320793446.5U CN203593620U (en) | 2013-12-04 | 2013-12-04 | Nitrogen making machine on well used for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203593620U true CN203593620U (en) | 2014-05-14 |
Family
ID=50674521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320793446.5U Expired - Fee Related CN203593620U (en) | 2013-12-04 | 2013-12-04 | Nitrogen making machine on well used for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203593620U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989442A (en) * | 2015-06-15 | 2015-10-21 | 华北科技学院 | Fire extinguishing device in coal mine gob |
| CN106761893A (en) * | 2017-03-04 | 2017-05-31 | 辽宁工程技术大学 | A kind of coal mine roadway fire extinguishing system |
| CN111215439A (en) * | 2019-10-11 | 2020-06-02 | 广西博世科环保科技股份有限公司 | Method and device for controlling oxygen content of tail gas of thermal desorption system of organic contaminated soil |
-
2013
- 2013-12-04 CN CN201320793446.5U patent/CN203593620U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989442A (en) * | 2015-06-15 | 2015-10-21 | 华北科技学院 | Fire extinguishing device in coal mine gob |
| CN106761893A (en) * | 2017-03-04 | 2017-05-31 | 辽宁工程技术大学 | A kind of coal mine roadway fire extinguishing system |
| CN111215439A (en) * | 2019-10-11 | 2020-06-02 | 广西博世科环保科技股份有限公司 | Method and device for controlling oxygen content of tail gas of thermal desorption system of organic contaminated soil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Liu et al. | Two-stage VSA/PSA for capturing carbon dioxide (CO2) and producing hydrogen (H2) from steam-methane reforming gas | |
| Sun et al. | Experimental study on the separation of CH4 and N2 via hydrate formation in TBAB solution | |
| Yang et al. | Experimental and simulation study on efficient CH4/N2 separation by pressure swing adsorption on silicalite-1 pellets | |
| Sun et al. | A systematic investigation of SO2 removal dynamics by coal-based activated cokes: The synergic enhancement effect of hierarchical pore configuration and gas components | |
| Pu et al. | Systematic study of dynamic CO2 adsorption on activated carbons derived from different biomass | |
| CN203593620U (en) | Nitrogen making machine on well used for coal mine | |
| Ouyang et al. | Coconut shell-based carbon adsorbents for ventilation air methane enrichment | |
| Zhao et al. | Hydrate‐based gas separation for methane recovery from coal mine gas using tetrahydrofuran | |
| Hao et al. | Correlations between adsorbent characteristics and the performance of pressure swing adsorption separation process | |
| Guan et al. | Simulation and analysis of dual-reflux pressure swing adsorption using silica gel for blue coal gas initial separation | |
| Hu et al. | Pilot scale assessment of methane capture from low concentration sources to town gas specification by pressure vacuum swing adsorption (PVSA) | |
| Abd et al. | Role of heat dissipation on carbon dioxide capture performance in biomethane upgrading system using pressure swing adsorption | |
| Shang et al. | Site trials of methane capture from low-concentration coalbed methane drainage wells using a mobile skid-mounted vacuum pressure swing adsorption system | |
| Lu et al. | Vacuum pressure swing adsorption process for coalbed methane enrichment | |
| Zhang et al. | Enrichment of oxygen-containing low-concentration coalbed methane with CMS-3KT as the adsorbent | |
| Bae et al. | Site trials of ventilation air methane enrichment with two-stage vacuum, temperature, and vacuum swing adsorption | |
| CN201924909U (en) | Coalbed gas separation device | |
| Abd et al. | Mass transfer approaches for CO2 separation in non-isothermal and non-adiabatic pressure swing adsorption system for biomethane upgrading | |
| Zhang et al. | Nitrogen rejection from low quality natural gas by pressure swing adsorption experiments and simulation using dynamic adsorption isotherms | |
| Wu et al. | Performance analysis of VPSA process for separating N2O from adipic acid tail gas | |
| Procopio et al. | Saturation of the MEA solution with CO2: absorption prototype and experimental technique | |
| CN202785635U (en) | Adsorptive hydrogen purifying device | |
| Wang et al. | Integrated vacuum pressure swing adsorption and Rectisol process for CO2 capture from underground coal gasification syngas | |
| CN102976291A (en) | Variable pressure adsorption nitrogen production equipment and method thereof | |
| Partoon et al. | Capturing carbon dioxide through a gas hydrate-based process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140514 Termination date: 20161204 |