阅读说明：本技术 一种抑制矿井再生瓦斯源的方法 (A method of inhibit mine to regenerate gas source ) 是由 曹运江 曹建辉 蔡昌和 黄祥宽 王宇 吴兴建 曹紫天 曹星昊 曹羽哲 杨小芹 曹 于 2019-09-05 设计创作，主要内容包括：本发明属于矿井瓦斯抑制技术领域,公开了一种抑制矿井再生瓦斯源的方法,技术来源于对相关低瓦斯矿井由于硫溴含量高,pH值低,只产二氧化气体不产甲烷的成因研究信息,所述抑制矿井再生瓦斯源的方法包括：按一定的比例配制含S<Sup>2-</Sup>离子、Br<Sup>-</Sup>离子的酸性水或取自烧砖窑厂内脱硫塔里的混合水或低瓦斯矿井排出的矿井水(pH<4.0),直接给可采煤层中注入一定量的S<Sup>2-</Sup>离子、Br<Sup>-</Sup>离子的混合酸性水；S<Sup>2-</Sup>离子、Br<Sup>-</Sup>离子剥离煤层中碳氢化合物(C<Sub>n</Sub>H<Sub>n+m</Sub>)的亚甲基(-CH<Sub>2</Sub>)和甲基(-CH<Sub>3</Sub>)里的H元素而成为游离态的H<Sup>+</Sup>离子。本发明可以更好地处理吸收了H<Sup>+</Sup>离子水的问题；能更好地节约成本,以及达到资源的最大化利用。(The invention belongs to mine gas suppression technology fields, disclose a kind of method in inhibition mine regeneration gas source, Technology origin in related low gaseous mine since sulphur bromine content is high, pH value is low, the study on the genesis information of titanium dioxide gas not methane phase is only produced, the method for inhibiting mine regeneration gas source includes: to be prepared according to a certain percentage containing S 2‑ Ion, Br ‑ The acid water of ion or the mine water (pH < 4.0) for being derived from mixing water in brick-baking kiln factory in desulfurizing tower or low gaseous mine discharge, directly to injecting a certain amount of S in minable coal seam 2‑ Ion, Br ‑ The mixing acid water of ion；S 2‑ Ion, Br ‑ Ion removes hydrocarbon (C in coal seam n H n+m ) methylene (- CH 2 ) and methyl (- CH 3 ) inner H element and become the H of free state + Ion.The present invention can be handled preferably and absorb H + The problem of ionized water；Can preferably save the cost, and reach maximally utilizing for resource.)

1. a kind of method for inhibiting mine regeneration gas source, which is characterized in that the method packet for inhibiting mine regeneration gas source It includes:

The first step is prepared contain S according to a certain percentage^2-Ion, Br^-The acid water of ion is derived from brick-baking kiln factory in desulfurizing tower Mixing water injects a certain amount of S directly to minable coal seam mesohigh^2-Ion, Br^-The mixing acid water or low gaseous mine of ion The mine water of discharge, pH < 4.0；

Second step, S^2-Ion, Br^-Ion removes hydrocarbon C in coal seam_nH_n+mMethylene-CH₂With methyl-CH₃In H Element and become free state H⁺Ion；Because of H⁺Ion and the S in injected coal seam mixing acid water^2-Ion, Br^-Ionization It closes, generates H naturally₂S and HBr；It has been stripped the methylene-CH of H element₂With methyl-CH₃, H in addition⁺Ionic weight falls sharply, and is adopting Under coal environmental condition, it is hardly formed CH₄。

2. inhibiting the method in mine regeneration gas source as described in claim 1, which is characterized in that in the step 1, prepare Containing S^2-Ion, Br^-The mixing acid water of ion is derived from water in brick-baking kiln factory in desulfurizing tower, and rationally according to field condition and Solute in environment configurations ratio and solution.

3. inhibiting the method in mine regeneration gas source as described in claim 1, which is characterized in that in the step 1, directly Contain 10%S to the injection of minable coal seam mesohigh^2-Ion, 40%Br^-The mine of mixing acid water or the low gaseous mine discharge of ion Well water, pH < 4.0；According to coal seam thickness control absorb water consumption, collect absorbed H⁺Complicated acid water.

4. inhibiting the method in mine regeneration gas source as described in claim 1, which is characterized in that in the step 2, wait inhale Complicated acid water is collected and handled after the completion of receiving, and mine is inhibited to regenerate gas source.

5. inhibiting the method in mine regeneration gas source as described in claim 1, which is characterized in that in the step 1, S^2-From Son, Br^-Ion acid water configuration method includes:

The first step, using, graduated container, take mixing water 2000ml in desulfurizing tower, then taken from mixing water at random The mixed sample of two parts of 500ml is respectively packed among graduated beaker, sticks S respectively^2-Ion and Br^-The label of ion detection；

Second step, detect whether there is S respectively in two beakers^2-Ion and Br^-Ion；It is past to post S^2-The beaker of Ar ion mixing liquid In, hydrochloric acid is 1. added respectively, generates the gas of rotten egg smell, and the gas can make wet Pb (NO₃)₂Test paper blackening；② Pb (NO is added₃)₂Solution or CuSO₄Solution generates the precipitating PbS or CuS of black；It is past again to post Br^-The beaker of Ar ion mixing liquid In, AgNO is 1. added₃Solution, generates pale yellow precipitate AgB, which does not dissolve in dust technology；2. being vibrated after chlorine water is added, instill A little carbon tetrachloride, carbon tetrachloride lower layer is in orange red；If about S^2-Ion or Br^-Both Common Anions of ion are examined If method effect is obvious, illustrate that the mixed liquor contains a large amount of S^2-Ion or Br^-Ion；

Third step, if the mixing water S in discovery desulfurizing tower^2-Ion or Br^-Ion is inactive or concentration is low, and a certain amount of S is added^2- Ion, Br^-Solion is configured to containing 10%S^2-Ion, 40%Br^-The gas source of ion inhibits liquid；

Finally, testing in adopted container in addition whether 1000ml mixing water, pH reach 4.0 or less using pH reagent paper.

6. a kind of reaction kettle that the method for inhibiting mine regeneration gas source as described in claim 1 uses, which is characterized in that described It is encased inside steel in reaction kettle and sieves and be placed on water filling port vicinity, covers tightly sealing cover, connects gas vent, the gas-guide tube other end with gas-guide tube It is passed through separator and the straight-through bottom, absorbing reaction generates the substance for being dissolved in water；Gas passes through another leading without the contact water surface Tracheae is gone out, and the gas-guide tube other end is connect with gas alarm, and measurement gas generates.

Technical field

The invention belongs to mine gas suppression technology field more particularly to a kind of methods for inhibiting mine regeneration gas source.

Background technique

Currently, the prior art commonly used in the trade is such that nowadays temporarily without inhibiting mine to regenerate the side in gas source Method.Many methods only inhibit gas explosion or discharge gas, inhibit based on explosion, have inert gas to inhibit, gas-solid mixing Inhibit, inhibit there are also nano-powder etc..But these methods only inhibit existing gas, make its stabilization, cannot reach It is complete to inhibit to regenerate with gas regeneration, solution gas source that be basic.This method can effectively solve that mine regenerates gas, more It solves the problems, such as that gas regenerates well, correspondingly ensures the security of the lives and property of underground labours.

In conclusion problem of the existing technology is:

(1) it is calculated according to the range and coal seam thickness that need to inhibit and absorbs water consumption Q=S (inhibiting region area) M (very thickness Degree) d (density), and determine the demand in its mining area；

(2)H⁺The dissolution rate of ion is small；

(3) water being discharged is neutralized using alkali piece；

(4) solution configuration proportion and low gaseous mine environmental protection treatment mode ratio are identical.

Solve the difficulty of above-mentioned technical problem:

Absorb how water consumption determines that needs are rationally judged using collected data are tested, H⁺Ion-solubility Rate is also required to further be determined according to experiment and local concrete condition.Data collected by different areas may be different, make The water being discharged with this method deals with less difficulty, but needs to see and absorb water consumption to determine specific processing method.Really Determine solution configuration proportion also to need to take different matched proportion densities for different regions.

It solves the meaning of above-mentioned technical problem: solving problem above, the demand to the absorption water of different size ore field And specific calculation amount and benefit value are had using scale, it could preferably absorb the H in different coal⁺Ion, and it is more preferable Ground processing absorbs H⁺The free of contamination discharge of the water environmental protection of ion.The proportion of mixed liquor surely preferably save the cost really, with And reach maximally utilizing for resource.

Summary of the invention

In view of the problems of the existing technology, the present invention provides a kind of methods in inhibition mine regeneration gas source.

The invention is realized in this way a method of inhibit mine to regenerate gas source, the inhibition mine regenerates gas The method in source includes:

Step 1 is prepared contain S according to a certain percentage^2-Ion, Br^-The acid water of ion is derived from desulfurizing tower in brick-baking kiln factory In mixing water, inject a certain amount of S directly to minable coal seam mesohigh^2-Ion, Br^-The mixing acid water or present low gas of ion The mine water (pH < 4.0) of mine discharge；

Step 2, S^2-Ion, Br^-Ion removes hydrocarbon (C in coal seam_nH_n+m) methylene (- CH₂) and methyl (- CH₃) inner H element and become the H of free state⁺Ion.Because of H⁺Ion and the S in injected coal seam mixing acid water^2-Ion, Br^-Ion combination generates H naturally₂S and HBr.Because of H₂S, HBr is again soluble easily in water, then can take away with mine water flow；It has been stripped H The methylene (- CH of element₂) and methyl (- CH₃), H in addition⁺Ionic weight falls sharply, and under coal mining environmental condition, is difficult to be formed CH₄。

Further, it in the step 1, prepares and contains S^2-Ion, Br^-The mixing acid water of ion is derived from brick-baking kiln factory Water in desulfurizing tower, and rationally according to solute in field condition and environment configurations ratio and solution.

Further, in the step 1, contain S directly to the injection of minable coal seam mesohigh is a certain amount of^2-Ion (10%), Br^-The mine water (pH < 4.0) of mixing acid water or the low gaseous mine discharge of ion (40%)；It may be noted that according to coal seam thickness Control absorbs water consumption, there is reasonable channel as far as possible, and collection has absorbed H⁺Complicated acid water.

Further, in the step 2, complicated acid water is collected and handled after the completion of to be absorbed, and mine is inhibited to regenerate gas Source.

Further, in the step 1, S^2-Ion, Br^-Ion acid water configuration method includes:

The first step goes to brick-baking kiln factory to take the mixing water 2000ml in desulfurizing tower, so using the graduated container of wide range The mixed sample for taking two parts of 500ml from mixing water at random afterwards, is respectively packed into graduated beaker, sticks S respectively^2-Ion and Br^-The label of ion detection；

Second step, detect whether there is S respectively in two beakers^2-Ion and Br^-Ion；It is past to post S^2-Ar ion mixing liquid In beaker, hydrochloric acid is 1. added respectively, generates the gas of rotten egg smell, and the gas can make wet Pb (NO₃)₂Test paper becomes It is black；2. Pb (NO is added₃)₂Solution or CuSO₄Solution generates the precipitating (PbS or CuS) of black；It is past again to post Br^-Ar ion mixing In the beaker of liquid, AgNO is 1. added₃Solution generates pale yellow precipitate AgB), which does not dissolve in dust technology；After 2. chlorine water is added Oscillation instills a little carbon tetrachloride, and carbon tetrachloride lower layer is in orange red；If about S^2-Ion or Br^-Both of ion are common If anion method of inspection effect is obvious, illustrate that the mixed liquor contains a large amount of S^2-Ion or Br^-Ion；

Third step, if the mixing water S in discovery desulfurizing tower^2-Ion or Br- ion is inactive or concentration is low is added a certain amount of S^2-Ion, Br^-Solion is configured to containing S^2-Ion (10%), Br^-The gas source of ion (40%) inhibits liquid；

Finally, testing in adopted container in addition whether 1000ml mixing water, pH reach 4.0 or less using pH reagent paper.

Another object of the present invention is to provide a kind of inhibition mines to regenerate the reaction kettle that the method in gas source uses, It is encased inside steel in the reaction kettle and sieves and be placed on water filling port vicinity, covers tightly sealing cover, connects gas vent with gas-guide tube, gas-guide tube is another One end is passed through separator and the straight-through bottom, absorbing reaction generate the substance for being dissolved in water；Gas is by another without the contact water surface Gas-guide tube go out, the gas-guide tube other end is connect with gas alarm, measurement gas generate.

In conclusion advantages of the present invention and good effect are as follows: can determine by coalification experiment and contain bromo element in coal, because of bromine Chemical reaction, i.e. C can be generated with hydrogen₂+Br+2H₂O=CO₂+HBr+(-CH₃).It is made up of addition reaction and peroxidization Largely-CH₃、-CH₂The substances such as (methyl, methylene), HBr, Br, C, CH.These substances are again to N-Propyl Bromide in greenhouse effects (CH₃CH₂CH₂) and bromoethane (C Br₂H₅The adsorption gas conversion such as Br).This is the simple of mine gas source formation during mining Process.The method for inhibiting mine gas source is exactly to act in a diametrically opposite way, to injecting a certain amount of S in minable coal seam^2-Ion, Br^- The mixing acid water of ion, by the H in coal seam⁺Removing forms H₂S and HBr, the H of 95% or more consumption⁺Content and concentration.When molten Liquid effectively takes away the H in coal seam⁺Afterwards, methylene and methyl are losing H⁺It is difficult to re-form gas (CH later₄), it can be effective Ground inhibits mine to generate gas again, creates a good working environment to underground labour, protects the life of underground labours Property safety.

Detailed description of the invention

Fig. 1 is the method flow diagram in inhibition mine regeneration gas source provided in an embodiment of the present invention.

Fig. 2 is the effect picture of the method in inhibition mine regeneration gas source provided in an embodiment of the present invention.

Fig. 3 is designed, designed reaction kettle structural schematic diagram provided in an embodiment of the present invention；

In figure: (a) being designed, designed reaction kettle pictorial diagram；It (b) is designed, designed reaction kettle structural schematic diagram.

Fig. 4 is fire alarm structural schematic diagram provided in an embodiment of the present invention.

Specific embodiment

In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention It is described in further details.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit The fixed present invention.

Technical solution of the present invention is explained in detail with reference to the accompanying drawing.

As shown in Figure 1, it is provided in an embodiment of the present invention inhibit mine regeneration gas source method the following steps are included:

S101: it prepares contain S according to a certain percentage^2-Ion, Br^-The acid water of ion is derived from brick-baking kiln factory in desulfurizing tower Mixing water, inject a certain amount of S directly to minable coal seam mesohigh^2-Ion, Br^-The mixing acid water or present low gas mine of ion The mine water (pH < 4.0) of well discharge；

S102:S^2-Ion, Br^-Ion removes hydrocarbon (C in coal seam_nH_n+m) methylene (- CH₂) and methyl (- CH₃) inner H element and become the H of free state⁺Ion.Because of H⁺Ion and the S in injected coal seam mixing acid water^2-Ion, Br^-Ion combination generates H naturally₂S and HBr.Because of H₂S, HBr is again soluble easily in water, then can take away with mine water flow；It has been stripped H The methylene (- CH of element₂) and methyl (- CH₃), H in addition⁺Ionic weight falls sharply, and under coal mining environmental condition, is difficult to be formed CH₄。

In the step S101, prepares and contain S^2-Ion, Br^-The mixing acid water of ion is derived from desulfurizing tower in brick-baking kiln factory In water, and rationally according to solute in field condition and environment configurations ratio and solution.

In the step S101, contain S directly to the injection of minable coal seam mesohigh is a certain amount of^2-Ion (10%), Br^-Ion (40%) mine water (pH < 4.0) of mixing acid water or low gaseous mine discharge；It should be noted that will be according to coal seam thickness Degree control absorbs water consumption, there is reasonable channel as far as possible, and collection is facilitated to absorb H⁺Complicated acid water.

In the step S102, complicated acid water is collected and handled after the completion of to be absorbed, reaches and inhibits mine regeneration gas Source.

S^2-Ion, Br^-Ion acid water configuration method includes:

The first step goes to brick-baking kiln factory to take the mixing water 2000ml in desulfurizing tower, so using the graduated container of wide range The mixed sample for taking two parts of 500ml from mixing water at random afterwards, is respectively packed into graduated beaker, sticks S respectively^2-Ion and Br^-The label of ion detection；

Second step, detect whether there is S respectively in two beakers^2-Ion and Br^-Ion；It is past to post S^2-Ar ion mixing liquid In beaker, hydrochloric acid is 1. added respectively, generates the gas of rotten egg smell, and the gas can make wet Pb (NO₃)₂Test paper becomes It is black；2. Pb (NO is added₃)₂Solution or CuSO₄Solution generates the precipitating (PbS or CuS) of black；It is past again to post Br^-Ar ion mixing In the beaker of liquid, AgNO is 1. added₃Solution generates pale yellow precipitate AgB), which does not dissolve in dust technology；After 2. chlorine water is added Oscillation instills a little carbon tetrachloride, and carbon tetrachloride lower layer is in orange red；If about S^2-Ion or Br^-Both of ion are common If anion method of inspection effect is obvious, illustrate that the mixed liquor contains a large amount of S^2-Ion or Br^-Ion；

Third step, if the mixing water S in discovery desulfurizing tower^2-Ion or Br^-Ion is inactive or concentration is low, is added a certain amount of S^2-Ion, Br^-Solion is configured to containing S^2-Ion (10%), Br^-The gas source of ion (40%) inhibits liquid；

Finally, testing in adopted container in addition whether 1000ml mixing water, pH reach 4.0 or less using pH reagent paper.

The method provided in an embodiment of the present invention for inhibiting mine regeneration gas source generates CH in coal seam₄Number and coal body Middle S^2-Ion, Br^-The number of ion is related, and S^2-Ion, B^-Ion and H⁺Ion has direct relation.It prepares according to a certain percentage Containing S^2-Ion, Br^-The acid water of ion is derived from mixing water in brick-baking kiln factory in desulfurizing tower, directly to injecting in minable coal seam A certain amount of S^2-Ion, Br^-The mixing acid water of ion；S^2-Ion, Br^-Ion removes hydrocarbon (C in coal seam_nH_n+m) Methylene (- CH₂) and methyl (- CH₃) inner H element and become the H of free state⁺Ion.Because of H⁺Ion and injected coal seam Mix the S in acid water^2-Ion, Br^-Ion combination generates H naturally₂S and HBr.Because of H₂S, HBr is again soluble easily in water, then can be with mine Well water stream is taken away；It has been stripped the methylene (- CH of H element₂) and methyl (- CH₃), H in addition⁺Ionic weight falls sharply, in coal mining environment Under the conditions of, it is difficult to form CH₄.Here it is the methods for inhibiting regeneration gas source to be formed.

Technical effect of the invention is explained in detail below with reference to experiment.

In coal there is test in gas when not plus mixing acid water:

In a kind of closed inner addition coal of reaction kettle (Fig. 3 (a)) and water, and it is heated, during observation test Whether gas generation is had.Designed, designed reaction kettle (Fig. 3 (b)) (need to rinse well reaction kettle before experiment, so as not to influence knot Fruit) the appropriate coal of the inside addition, then plus water stops when water filling port overflows water plus water.In order to avoid water is directly contacted with coal sample, It is encased inside steel in designed, designed reaction kettle and sieves and be placed on water filling port vicinity, covers tightly sealing cover, connects gas vent with gas-guide tube 1, 1 other end of gas-guide tube is passed through separator (device 2) and the straight-through bottom, and the substance for being dissolved in water is generated for absorbing reaction.Gas is not It is dissolved in water, can be gone out by another without contacting the gas-guide tube 2 of the water surface, 2 other end of gas-guide tube is connect with gas alarm, It is generated for measuring gas.

It first is encased inside steel sieve (preventing coal from directly contacting with water) in designed, designed reaction kettle, then in water injection hole to designed, designed Add water 500g in reaction kettle, is subsequently placed into 2kg coal sample, covers sealing cover.Designed, designed reactor constant temperature is heated, temperature is general At 800 DEG C or so.At this moment gas is sent into air water and bromo element separator (device 2) from designed, designed reaction kettle, from separation It is inserted into steel pipe 2 in device, conductance is entered in the airbag equipped with methane alarm, checks methane.

Do not had 5min that need to add water 500g into reaction kettle in experimentation, in order to avoid influence experiment process.Fire alarm (figure 4) reading will change.

Conversely, gas source is suppressed test in coal in test coal after injection mixing acid water:

The generation problem for inhibiting gas is verified by simulation similar experiment, is added in a kind of closed reaction kettle (Fig. 3) It first is encased inside steel sieve in reaction kettle, is then injected in water injection hole into designed, designed reaction kettle suitable containing S^2-Ion (10%), Br^- The mine water (pH < 4.0) of mixing acid water or the low gaseous mine discharge of ion (40%), is subsequently placed into 2kg coal sample, covers close Capping.Then and to it heat, with this come prove regeneration the repressed phenomenon of gas.

Gas is not soluble in water, can be connected by another other end without contacting the gas-guide tube of the water surface and gas alarm Meet (Fig. 4).

It needs constantly to add mixing acid water, fire alarm reading variation such as table to designed, designed reaction kettle in experimentation Shown in 1.

1 fire alarm of table reading

As can be seen from Table 1, gas alarm is shown, is carried out 2h or so reading in experiment and is reached maximum, is 28.63.It After read as time goes by, can become smaller and smaller.When experiment has carried out 2.5h or so, reading gradually tends to 0, illustrates not Gas is generated again, and regeneration gas source is suppressed.

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.