CN101629491B - Coal mine omnipotent gas extraction agent - Google Patents
Coal mine omnipotent gas extraction agent Download PDFInfo
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- CN101629491B CN101629491B CN2009100092638A CN200910009263A CN101629491B CN 101629491 B CN101629491 B CN 101629491B CN 2009100092638 A CN2009100092638 A CN 2009100092638A CN 200910009263 A CN200910009263 A CN 200910009263A CN 101629491 B CN101629491 B CN 101629491B
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Abstract
The invention relates to a coal mine omnipotent gas extraction agent, in order to solve the problem of poor gas extraction effect in existing coal mines. The extraction agent comprises the following raw materials according to weight ratio: 100 of water-soluble organic acid and 3-28 of sugar. The weight ratio of raw materials is 100 of water-soluble organic acid and 3-28 of sugar, and the extraction agent further comprises water of which the weight is 5-18 times as that of the above raw materials. The water-soluble organic acid is selected from fulvic acid, acetic acid, complex acid obtained from plant fermentation, citric acid and lactic acid; the sugar is selected from maltose, sucrose, fructose, konjac powder and agar. The extraction agent has the advantages of low cost, easy operation and use, no influence on coal quality, good effect, ability of improving the gas extraction effect of coal mines dramatically, no obvious influence on underground operation staff and equipment, high security and high efficiency.
Description
Technical field
The present invention relates to a kind of mine gas extraction auxiliary agent, particularly relate to a kind of coal mine omnipotent gas extraction agent.
Background technology
There are five the Nature disasters in the colliery: water, fire, gas, top board, particularly gas accident are the most fearful.China opens the colliery so far from finding coal resource, and never the people can all extract high concentration gas under the coal mine out, and this is immeasurable loss to China's coal-mine workman and national wealth.For many years, nobody can fill up this science blank.
At present, China administers the coal mine gas method has:
1, it is main ventilating.For coal miner can operate as normal in the down-hole, with forcing wind dilution gas and gas being taken out of.Its advantage has: (1) reduces the face gas density.(2) the aboveground fresh distinguished and admirable down-hole that is transported to is made underground labour's operate as normal.
2, water filling is main: beat 7-10 rice deep hole with electric coal drill, coal air drill, auger stem earlier at face (top layer).Carry out water filling with the cryogenic high pressure emulsification pump again.Find to exist following defective through inventor's long-term observation: (1) this method there is not guarantee to workman's personal safety.(2) manufacturing schedule and economic benefit there is not guarantee.(3) the method can only be used under present low gas concentration, can not use at highly gassy mine, and particularly two prominent mines are inapplicable, and high prominent mine is inapplicable.If in low gaseous mine face punching water filling, mainly be to reduce coal dust rather than administer gas.Summary is got up, and high fiery colliery accounts for more than 70% of colliery total amount.If in high Gassy Coal Face water filling, punching 7-10 rice is dark, and can only water filling 3-5 rice dark, all the other notes not be intake, and this flow of invar is too high, and interior pressure surpasses external pressure, and the gas impact force is very strong, and the impact force of gas is above water injection pressure.If annotate by force into water under high pressure, easily make coal wall caving, roof cracking, the injector high-voltage tube is destroyed, and is very dangerous to workman's construction.
3, when water filling is invalid, the firedamp drainage of punching, at the artificial punching 7-10 rice of pick face, hole count must have high concentration gas to gush out during punching at 15-30 in the hole, as not noting, have casualty accident at any time and take place.
4, the gas drainage under suction method of punching in advance: in order to reduce the mine ventilation cost, adopt leading punching extraction method, it is dangerous when leading punching the workman to be constructed, and gushes out because of work plane (rib) has high concentration high-load gas equally, in case flashing all has blast and danger of combustion at any time.
5, rock gangway punching extraction method: for work creates conditions to face, also be to occur in order to make monoblock work plane behind the driving no longer include high concentration gas, the monoblock face is contained high concentration gas to be extracted into aboveground, making work plane no longer include a large amount of gas occurs, gas is big during punching, spray orifice, stick of tool, crown drill often occur, a 50-150 rice boring need be taken out 6-12 month 50-60% gas.The gas exceeding limit blowing-out that can have a power failure appears, and dangerous to workman's life.
6, open rock gangway punching pump drainage method: for colliery digging safety, open a km passage in the rock stratum, investment is super ten million, consumes the plenty of time at the punch pump drainage gas in coal seam of rock gangway, and the loss that this passive method is brought is imponderable.China's coal-mine gas serious accident is mostly caused by these several situations, collects the especially big gas explosion accident death toll in blue colliery up to 74 people as the Shanxi that takes place recently, hinders 114 people, and wherein 5 people are critically ill, and economic loss is huge.The loss that comes of coal supply mine belt is annualized thus will lose hundreds of hundred million funds, and more than injures and deaths thousand people, particularly the dead group of group hinders, the gas control technology technology of saving somebody's life especially.Therefore, a kind of extraction of coal mine gas safely and efficiently technology is badly in need of in the colliery.
Summary of the invention
The object of the invention is to overcome the above-mentioned defective of prior art, and a kind of coal mine omnipotent gas extraction agent is provided.
For achieving the above object, coal mine omnipotent gas extraction agent of the present invention comprises following materials of weight proportions: water-soluble organic acid 100, sugared 3-28.So design after will mixing with two kinds of raw materials, be converted the water about ten times during use, can be in the extraction hole of accomplishing fluently in advance pressure injection, just can receive the gas pumping effect of getting twice the result with half the effort.The extraction agent of the present invention that a large amount of evidence per kilograms are converted behind the water can be collected gas 30-60 cubic meter.Because extraction agent of the present invention applicable to the various gas pumpings in all kinds of collieries, can both be received satisfied extraction effect, so claim all-round.
As optimization, the weight proportion of raw material is: water-soluble organic acid 100, sugared 5-8.So design, so proportioning extraction effect is better.
As optimization, also comprise above-mentioned raw materials gross weight 5-18 water doubly.So design, this converts the water ratio is the ratio commonly used that inventor's long term test obtains, and also can suitably adjust according to the down-hole concrete condition.
As optimization, the weight portion of described water is 8-12.So design, so proportioning extraction effect is better.
As optimization, described water-soluble organic acid is selected from Water Soluble Compound acid, citric acid, the lactic acid that fulvic acid, acetic acid, plant fermentation obtain; Described sugar is selected from maltose, sucrose, fructose, konjaku flour, agar.So design can be wherein a kind of component, also can be any cooperation of multiple component.Described fulvic acid claims fulvic acid again.
Described konjaku flour contains SKGM, be that glucomannan reaches more than 45%, because the content requirement of sugar is very not strict in the prescription, its consumption is for for the purpose of the convenient metering, can calculate with the consumption of konjaku flour fully, in addition, other component also helps gas pumping in the konjaku flour, so, do not influence the extraction effect with the konjaku flour metering.
In like manner: agar also contains a large amount of agaroses, because of it is insoluble to cold water, is soluble in boiling water, and the slow hot water that is dissolved in is so need convert the boiling water dissolving when using.
As optimization, described water-soluble organic acid is organic acid or the fulvic acid that plant fermentation makes, and described sugar is the maltose that starch saccharification is made.So design, cost is low, and is effective.Described plant comprises crops, leaf of trees and fruit.Of particular note: needed water-soluble organic acid and sugar are all preferably extracted by vegetable raw material or fermentation is made, can reduce cost like this, pure plant material more helps environmental protection, also more helps reducing to minimum to the influence of personnel and equipment the extraction agent
Certainly as a supplement, the strong acid that described organic acid is also available converts sustained release agent replaces, i.e. the strong acid acid substitution that dies down.The preferred 8-16MPA of water injection pressure is preferably in the extraction agent of converting behind the water and under high pressure produces in the coal seam of reinjecting after vaporific.Its vaporific injection: 1, can increase the gas permeability of coal, improve the extraction quality.2, increase coal production and benefit.
Using method (solution of pinpointing the problems): too high when coal-bed gas excessive concentration, gas emission, find when punching that boring coal powder injection, stick of tool bar, crown drill bar, boring are smoldered, the drilling rod heating produces spark, blowing out that the back finds that gas is suddenly big or suddenly small, ringing the coal big gun during coal seam; At the getting working face air quantity too hour, can carry out water filling presses wind and adds extraction agent of the present invention.The equipment that uses comprises aboveground blast device, underground hydraulic pressure device, draft gauge, hydralic pressure gauge, extraction device, generally grasps at blast 0.5-1.5MPA, hydraulic pressure 8-16MPA, single hole fluid injection (convert water after extraction agent of the present invention) amount is calculated 1 kilogram/meter by hole depth, can adopt fluid injection after the first extraction if find spray orifice, elder generation's extraction time must not be less than 48 hours, and the normal extraction time in extraction hole must not be less than 168 hours.
The fluid injection process is beaten deep hole according to each ore deposit geological conditions and each ore deposit use equipment, and apart from calculating, the quantity in hole is calculated hole and pitch of holes 15-30 rice with distance to the degree of depth by rice by each ore deposit design digging.Usually the proof that studies for a long period of time is efficient more than 95%, i.e. 100 extractions have at least and can receive remarkable result 95 times.
Its effect has: after 1, adopting extraction agent extraction of the present invention, do not have again high concentration gas to occur; 2, behind the gas pumping, no longer need rock gangway punching gas pumping, and gas can obtain collecting and utilize, not waste useful resource; 3,, can not occur the dead group of group again and hinder accident by after using extraction agent extraction of the present invention; 4, the coal seam after the application extraction agent extraction of the present invention no longer has sulfur dioxide, carbon dioxide, hydrogen sulfide.5, using extraction agent of the present invention does not have influence to ature of coal, can avoid a large amount of gas accidents to take place.
After adopting technique scheme, it is low, easy for operation that coal mine omnipotent gas extraction agent of the present invention has a cost, ature of coal there is not influence, effective, can significantly improve coal mine gas extraction effect, downhole operations personnel and equipment there are not obvious influence, advantage safely and efficiently yet.
The specific embodiment
Embodiment one, and coal mine omnipotent gas extraction agent of the present invention is mixed by following weight proportion raw material: 100 kilograms of acetic acid, 3 kilograms of maltose.Dissolve in about ten times of weight during use or 5-18 water doubly.
Embodiment two, and coal mine omnipotent gas extraction agent of the present invention is mixed by following weight proportion raw material: 100 kilograms of acetic acid, 28 kilograms of maltose.Dissolve in about ten times of weight during use or 5-18 water doubly.
Embodiment three, and coal mine omnipotent gas extraction agent of the present invention is mixed by following weight proportion raw material: 100 kilograms of acetic acid, 8 kilograms of maltose.Dissolve in about ten times of weight during use or 5-18 water doubly.
Embodiment four, and coal mine omnipotent gas extraction agent of the present invention is mixed by following weight proportion raw material: 100 kilograms of water-soluble organic acids, 5 kilograms of maltose.Dissolve in about ten times of weight during use or 5-18 water doubly.
Embodiment five, and coal mine omnipotent gas extraction agent of the present invention is by miscible the forming of following weight proportion raw material: the water of 5 times of weight of 100 kilograms of acetic acid, 3 kilograms of maltose, aforementioned base materials gross weight.
Embodiment six, and coal mine omnipotent gas extraction agent of the present invention is by miscible the forming of following weight proportion raw material: the water of 18 times of weight of 100 kilograms of acetic acid, 28 kilograms of maltose, aforementioned base materials gross weight.
Embodiment seven, and coal mine omnipotent gas extraction agent of the present invention is by miscible the forming of following weight proportion raw material: the water of 8 times of weight of 100 kilograms of acetic acid, 8 kilograms of maltose, aforementioned base materials gross weight.
Embodiment eight, and coal mine omnipotent gas extraction agent of the present invention is by miscible the forming of following weight proportion raw material: the water of 12 times of weight of 100 kilograms of acetic acid, 5 kilograms of maltose, aforementioned base materials gross weight.
Described water-soluble organic acid is a kind of in the Water Soluble Compound acid that obtains of fulvic acid, acetic acid, plant fermentation, citric acid, the lactic acid or multiple mixture arbitrarily; Described sugar is selected from a kind of or any multiple mixture of maltose, sucrose, fructose, konjaku flour, agar.Described water-soluble organic acid the most the organic acid that makes of preferred plant fermentation or/and fulvic acid.
Using method and effect:
One, colliery of the present invention all can the extraction agent be on May 30th, 2005 certain colliery A work plane carry out, by technical requirements, lower air duct punches simultaneously on work plane, be respectively 70 meters and 60 meters, 150 meters of work plane total lengths are adopted the middle isolation strip that must keep 10-15 rice of face by technical requirements, record that gas density all is 100% in the hole, 16 cubic metres of coal body ton coal gas.After the extraction seven days, record effect hole gas density and reduce to 0.8% by original 100%.Ton coal gas drops to 0.06 by original 16 cubic metres.For further grasping the validity of this technology, continued extraction again 5 days, record the effect hole again and reduce to 0.2, ton coal gas bearing capacity is 0.01.By 12 days operation on the spot, prove that this extraction agent has reached the production safety requirement, to compare with traditional extraction and improved 46-56%, total extraction effect is more than 99%.
On June 15th, 2,2005 was carried out the gas pumping operation at B ore deposit work plane, 120 meters of this work plane total lengths, and last lower air duct punches 155 meters simultaneously, injects 60 kilograms of this products (moisture) respectively, and gas density is 100% in the gaging hole.Ton coal gas bearing capacity is 15 cubic metres.Two holes are injected the present invention respectively and are converted 60 kilograms of products behind the water, after extraction is carried out 10 days, beat 30 meters in effect hole, record in the hole in the air gas bearing capacity and reduce to 0.3% by original 100%, and a ton coal gas bearing capacity reduces to 0.01.Obvious by the evidence effect, meet the national security production requirement fully.
On July 6th, 3,2006 carried out at C ore deposit work plane, 105 meters of this ore deposit work plane total lengths.Last lower air duct respectively punches 45 meters, the gas density 100% of gaging hole, 16 meters of ton coal gas
3, inlet air pressure 0.5MPA injects the present invention and converts 90 kilograms of extraction agent behind the water, and extraction was beaten 20 meters in effect hole after 8 days, and gas density has only 0.3% in the gaging hole, ton coal gas bearing capacity 0.01%.
Four, on July 14th, 2005 is in certain Cai Yi district, ore deposit, 7 of last air way punchings, 15 meters of extraction spans, blast injects product of the present invention, and carry out work simultaneously, after 7 days in the effect hole gas 98% reduce to 0.38%, by verifying that beneficial effect is up to (every protrusion-dispelling index is all below 0.5%) more than 90%.
Five, 2 of one group of gate top punchings on March 22nd, 2006 in certain exploiting field, ore deposit, 14.9 meters of hole and spans, 160 meters of hole depths, injection the present invention converts 127 kilograms of aquatic products, after 7 days, records in the hole gas and reduces to 0.51% from 97%, and beneficial effect is up to more than 90%.
Six, punched two at 150 meters of one group of gate top, certain exploiting field, ore deposit on April 18th, 2006,15.2 meters at the interval of Kong Yukong, 149 meters of hole depths, inject the present invention and convert 124 kilograms of aquatic products, record in the hole gas after 7 days and reduce to 0.41% from 98%, by summing up beneficial effect up to more than 90% from the data in effect hole.The extraction effect is up to more than 90%.
Seven, punched 2 at 195 meters of one group of gate top, certain exploiting field, ore deposit on May 28th, 2006,15.3 meters of hole and spans, 153 meters of hole depths are injected the present invention and are converted 126 kilograms of aquatic products, record in the hole gas after 7 days and reduce to 0.51% from 95%, by the checking beneficial effect up to more than 90%.
Eight, on July 26th, 2006 dark 90 meters of certain ore deposit tunneling region 21041 work plane punchings, inject the present invention and convert 130 kilograms of aquatic products, after 7 days, record in the hole gas and reduce to 0.63-0.66% from 100%, by the effect beneficial effect up to more than 90%.
Nine, on September 16th, 2006, at certain ore deposit getting working face 11041 work plane, punch dark 155 meters, coal seam gas-bearing capacity is 14.5 cubic metres in the hole, gas density 98% is injected the present invention and is converted 124 kilograms of aquatic products, records gas bearing capacity 0.03% in the inspection hole after 7 days, gas density 0.22% in the hole, reaches more than 90% by detection validation is efficient.
By above repeatedly site trial, coal mine gas extraction agent of the present invention helps country to improve the safety of coal mines producing capacity, and it is difficult thoroughly to solve colliery coal road driving, adopts the practical problem of face digging difficulty.The in the past traditional passive improvement out-of-date methods in colliery are thoroughly changed into efficient extraction coal body gas, make full use of coal body gas.
Claims (6)
1. a coal mine omnipotent gas extraction agent is characterized in that comprising following materials of weight proportions: water-soluble organic acid 100, sugared 3-28; Described water-soluble organic acid is a kind of in the Water Soluble Compound acid that obtains of fulvic acid, acetic acid, plant fermentation, citric acid, the lactic acid or multiple mixture arbitrarily, and described sugar is selected from a kind of of maltose, sucrose, fructose, konjaku flour, agar or multiple mixture arbitrarily.
2. according to the described coal mine omnipotent gas extraction agent of claim 1, it is characterized in that the weight proportion of raw material is: water-soluble organic acid 100, sugared 5-8.
3. according to the described coal mine omnipotent gas extraction agent of claim 2, it is characterized in that also comprising above-mentioned raw materials gross weight 5-18 water doubly.
4. according to the described coal mine omnipotent gas extraction agent of claim 2, it is characterized in that also comprising that weight portion is the water of 8-12.
5. according to claim 1 or 2 or 3 or 4 described coal mine omnipotent gas extraction agents, it is characterized in that described water-soluble organic acid is selected from Water Soluble Compound acid, citric acid, lactic acid that fulvic acid, acetic acid, plant fermentation obtain; Described sugar is selected from maltose, sucrose, fructose, konjaku flour, agar.
6. according to the described coal mine omnipotent gas extraction agent of claim 5, it is characterized in that described water-soluble organic acid is Water Soluble Compound acid or the fulvic acid that plant fermentation makes, described sugar is the maltose that starch saccharification is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100092638A CN101629491B (en) | 2009-02-26 | 2009-02-26 | Coal mine omnipotent gas extraction agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100092638A CN101629491B (en) | 2009-02-26 | 2009-02-26 | Coal mine omnipotent gas extraction agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101629491A CN101629491A (en) | 2010-01-20 |
| CN101629491B true CN101629491B (en) | 2011-04-27 |
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| CN101906989B (en) * | 2010-07-29 | 2012-04-25 | 吴星剑 | Gas decomposition eliminating liquid and coal mine gas control method |
| CN102434185A (en) * | 2011-09-23 | 2012-05-02 | 河南中煤矿业科技发展有限公司 | Coal mine gas fast solvent and application method thereof |
| CN102536303B (en) * | 2011-12-16 | 2014-05-07 | 董曰喜 | Diluent for hydrogen sulfide and methane of coal layer in coal mine |
| CN103437800A (en) * | 2013-08-29 | 2013-12-11 | 刘正魁 | Gas instant eliminating liquid preparing method and use method |
| CN103437801A (en) * | 2013-08-29 | 2013-12-11 | 刘正魁 | Gas eliminating agent preparing method and use method |
| CN106437824A (en) * | 2016-11-28 | 2017-02-22 | 田成林 | Gas-containing-coal multistage permeability increasing method |
| CN106499432B (en) * | 2016-11-28 | 2020-02-21 | 山东科技大学 | Gas-containing coal body gas treatment method based on different occurrence areas |
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