CN114515506B - Method for preparing and using gas digestive juice - Google Patents
Method for preparing and using gas digestive juice Download PDFInfo
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- CN114515506B CN114515506B CN202210004258.3A CN202210004258A CN114515506B CN 114515506 B CN114515506 B CN 114515506B CN 202210004258 A CN202210004258 A CN 202210004258A CN 114515506 B CN114515506 B CN 114515506B
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- B01D53/34—Chemical or biological purification of waste gases
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- E21B33/00—Sealing or packing boreholes or wells
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Abstract
The invention belongs to the technical field of gas control, and in particular relates to a method for preparing and using a gas digestive juice, wherein the method for preparing the gas digestive juice comprises the following raw materials: 10 to 20 parts of dihydroxysuccinic acid, 5 to 10 parts of carboxylic acid, 3 to 7 parts of ammonium carbonate, 5 to 10 parts of dodecylbenzene, 0.5 to 1 part of mycosin, 0.3 to 0.6 part of adsorbent, 2 to 6 parts of baking powder, 5 to 10 parts of isooctanol and ethylene oxide condensate and 40 to 80 parts of clean water. The method for using the gas digestive juice comprises the following steps: s1, punching; s2, hole sealing; s3, caulking; s4, injecting the gas digestive juice. The invention utilizes biological materials to prepare the gas digestive juice, thereby achieving the purposes of reducing the gas content of coal beds and roadways, enabling the gas to be in a free state in extraction and greatly improving the gas extraction rate, and simultaneously being capable of being used for purifying waste gas containing gas components.
Description
Technical Field
The invention belongs to the technical field of gas control, and particularly relates to a method for preparing and using a gas digestive juice.
Background
Five spontaneous combustion disasters exist in coal mining, wherein gas accidents are the most feared, and at present, 27 hundred million tons of domestic coal are produced, and 80% of the domestic coal belongs to high-gas mines. With the obvious improvement of the atmospheric environmental quality in China, the main contradiction is concentrated on the control of ozone pollution concentration indexes, volatile organic pollutants (VOCs) replace sulfur dioxide to be listed as constraint indexes of the atmospheric environmental quality, and the prevention and the control of the VOCs pollution become the key and important points of the atmospheric pollution control. To enhance the co-control of PM2.5 and O3, VOCs are important precursors for the formation of O3 and PM 2.5; to treat ozone pollution, the pollution of VOCs is treated firstly, the VOCs contain a large amount of alkane gas, and in addition, the waste gas and the oil smoke discharged in most industries such as petroleum, coking, chemical fertilizers, catering and the like do not reach standards, the waste gas also contains methane as a main component of gas, and the common filter box and the purifier cannot effectively purify methane, ethane, propane and the like.
The existing gas ablation technology only can ablate the gas in a part of coal mines simply, when the gas is extracted, the gas extraction rate is difficult to improve, and meanwhile, the treatment of the waste gas containing the gas components generated in production and life is not greatly facilitated, so that the mining risk is reduced, the mining cost is reduced, the mining environmental safety of workers is improved, the gas digestion and coal mining efficiency is improved, the national environmental protection policy is responded, the waste gas treatment effect is enhanced, the emission of polluted gas in production and life is reduced, and the method for preparing the gas digestion liquid and the use method are provided.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a method for preparing the gas digestive juice by using biological materials and a use method thereof, and then the unique use method is adopted to achieve the purposes of ablating the gas, greatly reducing the gas content of a coal bed, waking up the main component methane of free gas through biological reaction in extraction, further enabling the gas to be in a free state and greatly improving the gas extraction rate; the automatic liquid adding device of the pipeline is utilized to add the gas digestive juice into the water jet fan according to a certain proportion, and the gas digestive juice is sprayed at the upper corners of the roadway and the like through the water jet fan, so that the gas content in the roadway can be eliminated; meanwhile, the problem that gas containing gas components is difficult to purify generated in the production and life of industries such as petroleum, chemical industry, catering industry and the like can be solved.
In order to solve the technical problems, the invention adopts the following technical scheme: the application method of the gas digestive juice comprises the following raw materials: 10 to 20 parts by weight of dihydroxysuccinic acid, 5 to 10 parts by weight of carboxylic acid, 3 to 7 parts by weight of ammonium carbonate, 5 to 10 parts by weight of dodecylbenzene, 0.5 to 1 part by weight of mycomycin, 0.3 to 0.6 part by weight of adsorbent, 2 to 6 parts by weight of baking powder, 5 to 10 parts by weight of isooctanol and ethylene oxide condensate and 40 to 80 parts by weight of clean water;
the specific assembly steps are as follows:
step one: weighing dihydroxysuccinic acid, carboxylic acid, ammonium carbonate, dodecylbenzene, mycomycin, adsorbent, baking powder, isooctanol and ethylene oxide condensate in corresponding parts by weight;
step two: weighing corresponding parts by weight of clean water and putting the clean water into a container;
step three: adding all the raw materials in the first step into a container filled with the clean water with the corresponding weight parts in the second step, and stirring to uniformly mix the raw materials;
when the gas digestive juice is used for coal seam gas digestion, the method comprises the following steps:
s1, punching: a joint drilling hole is drilled at one interface of the coal seam, then liquid injection drilling holes are drilled at intervals of 2.5-3.5 meters around the joint drilling hole at the same interface, a bag-type hole packer is fixed on a joint steel pipe, and the bag-type hole packer and the joint steel pipe are placed in the joint drilling hole together; then a bag-type hole packer is taken and fixed on the liquid injection steel pipe, and then the bag-type hole packer and the liquid injection steel pipe are placed in a liquid injection drilling hole together;
s2, hole sealing: firstly, a slurry discharging port of a pneumatic grouting pump is connected with a bag type hole packer on a caulking steel pipe through a quick connector, then a proper amount of inorganic hole packer material is added into a stirring device of the pneumatic grouting pump, and the weight ratio of the inorganic hole packer material to water is 1:12, adding water for dilution, stirring uniformly, then starting a pneumatic grouting pump, injecting inorganic hole sealing materials in the pneumatic grouting pump into bags at two ends of a bag type hole packer through grouting pipes in sequence, stopping grouting by the grouting pump when the pressure value of the pneumatic grouting pump reaches a set value, after the hole sealing is completed by hole sealing, pulling out a quick connector after cracks in and around the drilling are filled with the inorganic hole sealing materials, connecting the quick connector with the bag type hole packer on a grouting liquid steel pipe, starting the grouting process of the grouting steel pipe by the pneumatic grouting pump, repeating the grouting process of the hole sealing by the grouting liquid steel pipe, grouting the rear bag by the grouting pipe, grouting the front bag, plugging the two bags after the bags at the two ends are fully inflated, lifting the pressure of the pneumatic grouting pump, blasting the hole sealing valve after the pressure of the pneumatic grouting pump reaches the blasting pressure of the blasting valve, flowing towards the two ends of the drilling, resetting to zero again, continuing grouting the drilling between the two bags, and stopping grouting until the pressure of the drilling hole sealing pump reaches the set value after the hole sealing pressure value is fully filled;
s3, caulking: after the hole sealing operation in the step S2 is completed, the mixture stays for 12 hours, the hole sealing slurry liquid is completely solidified, A, B two-component quick-setting inorganic materials are respectively poured into two pneumatic mixers, and the water-material ratio is 1:2, adding water and uniformly stirring, putting two suction pipes of a pneumatic double-liquid grouting pump into two stirring machines, wherein the pneumatic double-liquid grouting pump comprises two suction pipes and one grouting pipe, the pressure value can be adjusted between 0 and 100 megapascals, starting the pneumatic double-liquid grouting pump to sequentially inject A, B two-component quick-setting inorganic materials into a caulking drilling hole and a grouting drilling hole through the high-pressure grouting pipe, stopping grouting when the pressure value of the pneumatic double-liquid grouting pump reaches 9 to 11 megapascals, and completing caulking work of the caulking drilling hole and the grouting drilling hole;
s4, injecting a gas digestive juice: after the step S3 of caulking is completed, the caulking is stopped for 12 hours, A, B two-component quick-setting inorganic materials in a caulking drilling hole and a liquid injection drilling hole are completely solidified, then gas digestive juice is injected into the liquid injection drilling hole through a liquid injection steel pipe by using a pneumatic grouting pump, and a liquid injection valve is closed when the pressure value of the pneumatic liquid injection pump reaches a liquid injection set value.
Further, the preparation method comprises the following raw materials: 15 parts of dihydroxysuccinic acid, 7.5 parts of carboxylic acid, 5 parts of ammonium carbonate, 5 parts of dodecylbenzene, 1 part of mycose, 0.5 part of adsorbent, 4 parts of baking powder, 8 parts of isooctanol and ethylene oxide condensate and 60 parts of clean water.
Further, the preparation method comprises the following raw materials: 10 parts of dihydroxysuccinic acid, 5 parts of carboxylic acid, 3 parts of ammonium carbonate, 5 parts of dodecylbenzene, 0.5 part of mycose, 0.3 part of adsorbent, 3 parts of baking powder, 5 parts of isooctanol and ethylene oxide condensate and 40 parts of clean water.
Further, the preparation method comprises the following raw materials: 20 parts of dihydroxysuccinic acid, 10 parts of carboxylic acid, 6 parts of ammonium carbonate, 10 parts of dodecylbenzene, 0.8 part of mycose, 0.3 part of adsorbent, 6 parts of baking powder, 10 parts of isooctanol and ethylene oxide condensate and 80 parts of clean water, and all the original components are uniformly mixed and stirred to complete the preparation.
Further, in the step S1, after the coal mine gas content and the gas gathering position need to be monitored and determined in the field, the number of the injection holes and the punching angle are determined, when the punching selection interface is performed, the punching is performed after no pressure maintaining factor is determined, the coal seam is followed in the punching process, the bag type hole packer comprises a front bag, a rear bag and a grouting pipe with the outer diameter of 16mm and the inner diameter of 12mm and a blasting valve, the blasting valve is positioned between the front bag and the rear bag, the blasting valve is arranged on the grouting pipe, the front bag of the bag type hole packer positioned on the caulking steel pipe is positioned at one end of the caulking steel pipe close to the orifice, the rear bag is positioned at one end of the caulking steel pipe close to the bottom of the orifice, the position distribution of the front bag and the rear bag of the bag type hole packer positioned on the injection steel pipe is the same as that of the caulking steel pipe, the front bag and the injection steel pipe are respectively inserted into the front bag and the rear bag positioned on the front bag and the rear bag and used for binding, the distance between the front bag and the rear bag is 5 m to 8 m, the maximum expansion outer diameter between the front bag and the rear bag reaches 150 mm, the lowest blasting pressure is 2.5 mpa to 2.5 mpa, and the blasting pressure between the blasting valve and 0.1 mpa adjustable pressure is achieved; the diameters of the caulking drilling holes and the grouting drilling holes are 75-90 mm, the depths are 100 m, the outer diameters of the caulking steel pipes and the grouting steel pipes are 35-40 mm, the inner diameters of the caulking steel pipes and the grouting steel pipes are 15-20 mm, the caulking steel pipes and the grouting steel pipes are all made of steel pipe head screw connections with lengths of 2m, when grouting is performed in the step S2, the grouting pipe firstly grouting a rear bag and then grouting a front bag, after the bags at two ends are fully inflated, the two bags block the drilling holes, the pneumatic grouting pump pressure rises, when the pneumatic grouting pump pressure reaches the blasting pressure of the blasting valve, the blasting valve blasts, flows towards the two ends of the drilling holes, the pneumatic grouting pump pressure returns to zero again, grouting is continued to the drilling holes between the two bags, when the pneumatic grouting pump has a pressure value again, the drilling holes in the sealing distance are proved to be full of grouting liquid with pressure, and the set value is continued until the pneumatic grouting pump pressure reaches a stop.
Furthermore, the A, B two-component quick-setting inorganic materials in the step S3 are all powdery micro-expansion hole sealing materials, the performance of the single component is stable after water is added, the single component can be quickly set after being mixed, the A, B two-component quick-setting inorganic materials can permeate into all cracks around a drilling hole, the two slurries can be set after being mixed stably for 5 minutes, the surrounding cracks are blocked, the compressive strength reaches more than 15 megapascals within 1-2 hours, and the reaction temperature is not more than 65 ℃; the method for injecting the gas digestive juice in the step S4 is similar to the grouting hole sealing method, the pneumatic injection pump has no pressure value at the beginning, the gas digestive juice is fully injected into the injection hole when the pressure value rises, the injection is continuously carried out at the moment, the gas digestive juice is stopped to be injected when the injection pressure value of the pneumatic injection pump reaches 2-3 megapascals, after the injection valve is closed, the gas digestive juice needs to stay for 5-50 minutes to wait for the gas digestive juice to permeate into a coal seam under the permeation effect of isooctanol and ethylene oxide condensate, and after the gas digestive juice is injected for 12 hours, the gas digestive juice can be safely mined.
Further, in the step S4, a gas digestive juice is injected into the coal seam, and when the gas digestive juice is used for gas extraction, the injected gas digestive juice enables the coal seam gas to be in a free state.
Compared with the prior art, the invention has the following beneficial effects:
1. the materials used in the preparation method of the gas digestive juice are nontoxic and harmless biological materials, the gas is actively eliminated by utilizing the phagocytosis of biological bacteria, and the purpose is achieved through biological reaction in various fields of the gas digestive juice to play a role; when the coal mine is mined, after hole sealing is completed by using the bag type hole packer, A, B double-component rapid hardening inorganic hole sealing material is used, single performance of the two materials is stable, the two materials can be quickly solidified after being mixed, the compressive strength is high after solidification, the seam plugging strength is improved, gas is prevented from flowing in a seam of the coal mine, the reaction temperature is 60 ℃, and the digestion effect of gas digestive juice is accelerated on the premise that the safety temperature of the coal mine is ensured to be lower than that of the coal mine, so that the mining time is further shortened.
2. The method adopts the isooctanol and ethylene oxide condensate, so that the gas digestive juice has strong permeability under the action of the substance, the gas digestive juice is helped to quickly permeate into the coal seam and between gaps, the gas digestive juice is quickened to play a role, the time for integrally treating the gas is shortened, and the digestion effect is improved.
3. The invention provides a perfect matched punching, hole sealing, seam plugging and liquid injection technology; the depth of perforation can reach 100 meters, the plugging effect is good, the crack is not easy to leak, the pressure can be directly increased to 3MPa, 1 cubic meter of water can be input per hour, after the coal seam with large penetration volume is treated, the gas is eliminated by more than 90 percent, the accident of coal and gas outburst can not occur, the construction period can be effectively shortened, the coal seam can be comprehensively treated by injecting firstly and then digging, the gas can be conveniently injected and dug, the ventilation channels of the upper working surface and the lower working surface simultaneously inject the gas digestive juice into two injection holes of every 20 meters of the working surface, the exploitation time can be greatly shortened for 5-10 months, the exploitation speed can be increased, compared with the traditional technology, the fund can be saved by 50-60 percent, the economic benefit is obviously improved, the safety production is ensured after the treatment, and the workers are dry and alive.
4. The invention can effectively remove the gas power phenomenon of the stope and the threat to the personal safety, and reduce the gas and the coal dust of the working face; the raw coal can be mined 3-8 months in advance, coal can be mined 30-45 days after the comprehensive treatment working face is finished, the efficiency of coal mining face feeding can be improved by 2-3 times, 2-3 meters can be mined from the past 72 hours, and 6-8 meters can be mined at present; in the past, the coal digging surface is perforated and discharged, and two holes are drilled every square meter, so that when the whole coal digging surface is at least, only two holes are required to be drilled, and the construction can be performed at any time after the microorganism gas digestive juice is injected; the coal mine cross-cut coal uncovering is put in, and in the past, a large number of pumping holes are required to be drilled for coal uncovering in 60 days. Only two holes are needed to be punched for 7 days to uncover coal by using the technology.
5. The gas digestive juice prepared by the raw materials according to a certain weight ratio can be put into a filter box of an oil smoke purifying device for petroleum and coking industry exhaust gas and catering industry exhaust, can eliminate methane, ethane and propane in the exhaust gas and oil smoke, reaches the emission standard, is beneficial to reducing the exhaust gas treatment work in production and life, and is prepared from pure biological materials, so that the waste gas treatment assisting cost is low and no pollution is caused.
6. The invention can be used in coal seam gas extraction work, after the gas digestive juice is successfully prepared according to a certain weight proportion, the gas digestive juice is injected into the coal seam, and the main component methane in the gas can be awakened through biological reaction, so that the gas is in a free state, thus greatly improving the gas extraction rate and reducing the gas content in the coal seam.
7. The invention utilizes the automatic liquid adding device of the pipeline to add the gas digestive juice into the water jet fan according to a certain proportion, and the gas digestive juice is sprayed at the upper corners of the roadway through the water jet fan, so that the gas content in the roadway can be eliminated.
Drawings
FIG. 1 is a schematic diagram of a usage flow according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an embodiment of the present invention.
Reference numerals referred to in the drawings are: 1. a coal seam; 2. plugging and drilling; 3. grouting pipe; 4. a front pouch; 5. a posterior capsular bag; 6. a burst valve; 7. caulking the steel pipe; 8. drilling by injecting liquid; 9. and (5) filling the liquid steel pipe.
Detailed Description
In order that those skilled in the art will better understand the present invention, the following technical scheme of the present invention will be further described with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1-2, a method for using the gas digestive juice comprises the following raw materials: 15 parts of dihydroxysuccinic acid, 7.5 parts of carboxylic acid, 5 parts of ammonium carbonate, 5 parts of dodecylbenzene, 1 part of mycomycin, 0.5 part of adsorbent, 4 parts of baking powder, 8 parts of isooctanol and ethylene oxide condensate and 60 parts of clean water;
the specific assembly steps are as follows:
step one: weighing dihydroxysuccinic acid, carboxylic acid, ammonium carbonate, dodecylbenzene, mycomycin, adsorbent, baking powder, isooctanol and ethylene oxide condensate in corresponding parts by weight;
step two: weighing corresponding parts by weight of clean water and putting the clean water into a container;
step three: adding all the raw materials in the first step into a container filled with the clean water with the corresponding weight parts in the second step, and stirring to uniformly mix the raw materials;
when the gas digestive juice is used for coal seam gas digestion, the method comprises the following steps:
s1, punching: a caulking drilling hole 2 is drilled at one interface of the coal seam 1, then liquid injection drilling holes 8 are drilled at intervals of 2.5-3.5 meters around the caulking drilling hole 2 at the same interface, a bag-type hole packer is fixed on a caulking steel pipe 7, and the bag-type hole packer and the caulking steel pipe 7 are placed in the caulking drilling hole 2 together; then a bag-type hole packer is fixed on the liquid injection steel pipe 9, and then the bag-type hole packer and the liquid injection steel pipe are placed in the liquid injection drilling hole 8 together;
s2, hole sealing: firstly, a slurry discharging port of a pneumatic grouting pump is connected with a bag type hole packer on a caulking steel pipe 7 through a quick connector, then a proper amount of inorganic hole packer material is added into a stirring device of the pneumatic grouting pump, and the weight ratio of the inorganic hole packer material to water is 1:12, after the inorganic hole sealing materials in the pneumatic grouting pump are stirred uniformly, the pneumatic grouting pump is started, inorganic hole sealing materials in the pneumatic grouting pump are sequentially injected into bags at two ends of the bag type hole sealing device through the grouting pipe 3, when the pressure value of the pneumatic grouting pump reaches a set value, the grouting pump stops working to seal the hole sealing of the caulking hole 2, after the cracks in the drill hole and around the drill hole are filled with the inorganic hole sealing materials, the quick connector is pulled out, the quick connector is connected with the bag type hole sealing device on the grouting liquid steel pipe 9, the pneumatic grouting pump is started to repeat the grouting process of the caulking hole sealing steel pipe 7 on the grouting liquid steel pipe 9, grouting holes 8 are subjected to hole sealing by the grouting pipe 3, firstly, then grouting holes are subjected to grouting by the front bag 4, after the bags at the two ends are fully inflated, the two bags are blocked, the pneumatic grouting pump pressure rises, the blasting valve 6 is blasted towards the two ends of the drill hole when the pneumatic grouting pump pressure reaches the blasting pressure of the blasting valve 6, the pneumatic grouting pump pressure is reset to zero, and the grouting pressure of the two bags is continuously stopped when the pneumatic grouting pump pressure reaches the set value, and the hole sealing pressure of the hole sealing is continuously stopped;
s3, caulking: after the hole sealing operation in the step S2 is completed, the mixture stays for 12 hours, the hole sealing slurry liquid is completely solidified, A, B two-component quick-setting inorganic materials are respectively poured into two pneumatic mixers, and the water-material ratio is 1:2, adding water and uniformly stirring, putting two suction pipes of a pneumatic double-liquid grouting pump into two stirring machines, wherein the pneumatic double-liquid grouting pump comprises two suction pipes and one grouting pipe 3, the pressure value can be adjusted between 0 and 100 megapascals, starting the pneumatic double-liquid grouting pump to sequentially inject A, B two-component quick-setting inorganic materials into a caulking drilling hole 2 and a grouting drilling hole 8 through a high-pressure grouting pipe, stopping grouting when the pressure value of the pneumatic double-liquid grouting pump reaches 9 to 11 megapascals, and completing caulking work of the caulking drilling hole 2 and the grouting drilling hole 8;
s4, injecting a gas digestive juice: after the step S3 of caulking is completed, the caulking is stopped for 12 hours, the A, B two-component quick-setting inorganic materials in the caulking drilling hole 2 and the grouting drilling hole 8 are completely solidified, then gas digestive juice is injected into the grouting drilling hole 8 through the grouting steel pipe 9 by using a pneumatic grouting pump, and when the pressure value of the pneumatic grouting pump reaches a grouting set value, the grouting valve is closed.
The materials used in the method for preparing the gas digestive juice are nontoxic and harmless biological materials, the gas is actively eliminated by utilizing the phagocytosis of biological bacteria, the purpose is achieved through biological reaction in each field of the action of the gas digestive juice, isooctanol and ethylene oxide condensate are adopted, the gas digestive juice has strong permeability under the action of the substances, the gas digestive juice is helped to quickly permeate into the coal seam and between gaps, the action of the gas digestive juice is accelerated, the time for integrally treating the gas is shortened, and the digestion effect is improved.
The invention provides a perfect matched punching, hole sealing, seam plugging and liquid injection technology; the depth of perforation can reach 100 meters, the plugging effect is good, the crack is not easy to leak, the pressure can be directly increased to 3MPa, 1 cubic meter of water can be input per hour, after the coal seam with large penetration volume is treated, the gas is eliminated by more than 90 percent, the accident of coal and gas outburst can not occur, the construction period can be effectively shortened, the coal seam can be comprehensively treated by injecting firstly and then digging, the gas can be conveniently injected and dug, the ventilation channels of the upper working surface and the lower working surface simultaneously inject the gas digestive juice into two injection holes of every 20 meters of the working surface, the exploitation time can be greatly shortened for 5-10 months, the exploitation speed can be increased, compared with the traditional technology, the fund can be saved by 50-60 percent, the economic benefit is obviously improved, the safety production is ensured after the treatment, and the workers are dry and alive.
In the step S1, after the gas content and the gas gathering position of the mined coal mine are required to be monitored and determined in the field, the number and the punching angle of the liquid injection holes 8 are determined, when an interface is selected in punching, punching is performed after no pressure maintaining factor is determined, the coal seam 1 is followed in punching, the bag type hole packer comprises a front bag 4, a rear bag 5 and an outer diameter 16mm, a grouting pipe 3 and a blasting valve 6 with an inner diameter of 12mm, the blasting valve 6 is positioned between the front bag 4 and the rear bag 5, the blasting valve 6 is arranged on the grouting pipe 3, the front bag 4 of the bag type hole packer on the caulking steel pipe 7 is positioned at one end, close to an orifice, of the caulking steel pipe 7, the rear bag 5 is positioned at one end, close to the bottom of the orifice, of the caulking steel pipe 7, the front bag 4 and the rear bag 5 of the bag type hole packer on the liquid injection steel pipe 9 are distributed identically to the caulking steel pipe 7, the front bag 4 and the rear bag 5 positioned on the bag 9 are respectively inserted into the front bag 4 and the rear bag 5 positioned on the bag and bound by iron wires, the distance between the front bag 4 and the rear bag 5 is 5 to be 5-8 m, the maximum pressure between the front bag 4 and the rear bag and the maximum pressure of the bag is 2.6-2 Mpa, and the maximum expansion pressure of the bag is adjusted at the maximum pressure between the bag 2 and the explosion valve is 2.5 Mpa; the diameters of the caulking drilling holes 2 and the grouting drilling holes 8 are 75-90 mm, the depths are 100 m, the outer diameters of the caulking steel pipes 7 and the grouting steel pipes 9 are 35-40 mm, the inner diameters of the caulking steel pipes 7 and the grouting steel pipes 9 are 15-20 mm, the caulking steel pipes are all made of steel pipe head screw connection with a length of 2m, in the step S2, when grouting, the grouting pipe 3 firstly grouting the rear bag 5, then grouting the front bag 4, after the bags at the two ends are fully inflated, the two bags plug the drilling holes, the pneumatic grouting pump pressure rises, when the pneumatic grouting pump pressure reaches the blasting pressure of the blasting valve 6, the blasting valve 6 is blasted, flows to the two ends of the drilling holes, the pneumatic grouting pump pressure returns to zero again, drilling holes between the two bags are continuously grouting, when the pneumatic grouting pump has a pressure value again, the fact that the drilling holes within a hole sealing distance are full of grouting slurry is proved, and grouting is continued with pressure until the pneumatic grouting pump pressure reaches a set value to stop.
In the step S3, the A, B two-component quick-setting inorganic material is a powdery micro-expansion hole sealing material, the performance of the single component is stable after water is added, the mixed material can be quickly set, the A, B two-component quick-setting inorganic material can permeate into all cracks around a drill hole, the two slurries can be set after being mixed stably for 5 minutes, the surrounding cracks are blocked, the compressive strength of the slurry reaches more than 15 megapascals within 1-2 hours, and the reaction temperature is not more than 65 ℃; the method for injecting the gas digestive juice in the step S4 is similar to the grouting hole sealing method, the pneumatic injection pump has no pressure value at the beginning, the gas digestive juice is fully injected into the injection drilling hole 8 when the pressure value rises, the injection is continuously carried out at the moment, the gas digestive juice is stopped to be injected when the injection pressure value of the pneumatic injection pump reaches 2-3 megapascals, after the injection valve is closed, the gas digestive juice needs to stay for 5-50 minutes to wait for the gas digestive juice to permeate into the coal bed 1 under the permeation effect of isooctanol and ethylene oxide condensate, and after the gas digestive juice is injected for 12 hours, the gas digestive juice can be safely mined.
In step S4, a gas digestive juice is injected into the coal seam 1, and when the gas digestive juice is used for gas extraction, the injected gas digestive juice enables the coal seam gas to be in a free state.
The gas digestive juice can effectively remove the gas power phenomenon of the stope and threat to personal safety, and reduce the gas and coal dust of the working face; the raw coal can be mined 3-8 months in advance, coal can be mined 30-45 days after the comprehensive treatment working face is finished, the efficiency of coal mining face feeding can be improved by 2-3 times, 2-3 meters can be mined from the past 72 hours, and 6-8 meters can be mined at present; in the past, the coal digging surface is perforated and discharged, and two holes are drilled every square meter, so that when the whole coal digging surface is at least, only two holes are required to be drilled, and the construction can be performed at any time after the microorganism gas digestive juice is injected; the coal mine cross-cut coal uncovering is put in, and in the past, a large number of pumping holes are required to be drilled for coal uncovering in 60 days. Only two holes are needed to be punched for 7 days to uncover coal by using the technology.
When the automatic liquid feeding device is used for eliminating gas in a roadway, the automatic liquid feeding device comprises a pipeline automatic liquid feeding device, wherein the automatic liquid feeding device is used for feeding the prepared gas digestive liquid into a water jet fan, and the gas digestive liquid is sprayed at the upper corner of the roadway through the water jet fan, so that the gas content in the roadway can be eliminated.
Through experiments, in the coal seam gas ablation process, a certain amount of samples conforming to the experimental rules are selected, the gas digestive juice consumption is 0.3 kg per cubic coal, the gas content before treatment is 0.8%, the gas content after treatment is 0.15%, the treatment result completely conforms to 1% conforming to the regulations of the coal mine safety regulations, and the experimental result shows that the gas digestive juice is used, so that the coal seam gas treatment effect is greatly improved, a large amount of time is shortened, and the exploitation efficiency is improved.
Example two
Unlike the first embodiment, the method for preparing the gas digestive juice in the embodiment comprises the following raw materials: 10 parts of dihydroxysuccinic acid, 5 parts of carboxylic acid, 3 parts of ammonium carbonate, 5 parts of dodecylbenzene, 0.5 part of mycose, 0.3 part of adsorbent, 3 parts of baking powder, 5 parts of isooctanol and ethylene oxide condensate and 40 parts of clean water; the using steps are as follows: the raw materials are uniformly mixed and stirred to prepare the gas digestive juice, then the gas digestive juice is immersed on the filter cotton in the filter box, and the alkane components such as methane, ethane, propane and the like in the waste gas and the oil smoke can be eliminated when the waste gas is treated, so that the emission standard is reached, the waste gas treatment work in production and life can be lightened, the digestive juice is prepared from pure biological materials, the waste gas treatment assistance cost is low, and no pollution is caused.
Through experiments, in the treatment of the oil smoke waste gas, a certain amount of samples meeting the experimental rules are selected, the consumption of the gas digestive juice is 0.2 kg per cubic waste gas, 15 mg of alkane gas is contained in the sample waste gas before the treatment per cubic meter, 1.8 mg of alkane gas is contained in the sample waste gas after the treatment per cubic meter, and the sample waste gas meets the environmental air quality standard of 2mg/m 3 。
Example III
Unlike the first embodiment, in the gas extraction operation, the method for preparing the gas digestive juice in the embodiment includes the following raw materials: 20 parts of dihydroxysuccinic acid, 10 parts of carboxylic acid, 6 parts of ammonium carbonate, 10 parts of dodecylbenzene, 0.8 part of mycose, 0.3 part of adsorbent, 6 parts of baking powder, 10 parts of isooctanol and ethylene oxide condensate and 80 parts of clean water; the using steps are as follows: the raw materials are mixed and stirred uniformly to prepare the gas digestive juice, the gas digestive juice is injected into the coal seam according to the using method of the first embodiment, and the gas digestive juice can be used for waking up the main component CH4 of the coal seam gas, so that the gas is in a free state, the gas drainage rate is greatly improved, and the gas content of the coal seam is reduced.
Through experiments, in gas extraction, a certain amount of samples conforming to the experimental rules are selected, the consumption of the gas digestive juice is 0.3 kg per cubic coal, the gas extraction rate in the samples before treatment is 35%, and the gas extraction rate in the samples after treatment is 79%, and according to experimental results, the gas extraction rate is greatly improved by using the gas digestive juice.
The following is a comparative table of some experimental results of the present invention:
the foregoing is merely illustrative of the present invention and not restrictive, and other modifications and equivalents thereof may occur to those skilled in the art without departing from the spirit and scope of the present invention.
Claims (7)
1. The use method of the gas digestive juice is characterized by comprising the following raw materials: 10 to 20 parts by weight of dihydroxysuccinic acid, 5 to 10 parts by weight of carboxylic acid, 3 to 7 parts by weight of ammonium carbonate, 5 to 10 parts by weight of dodecylbenzene, 0.5 to 1 part by weight of mycomycin, 0.3 to 0.6 part by weight of adsorbent, 2 to 6 parts by weight of baking powder, 5 to 10 parts by weight of isooctanol and ethylene oxide condensate and 40 to 80 parts by weight of clean water;
the specific assembly steps are as follows:
step one: weighing dihydroxysuccinic acid, carboxylic acid, ammonium carbonate, dodecylbenzene, mycomycin, adsorbent, baking powder, isooctanol and ethylene oxide condensate in corresponding parts by weight;
step two: weighing corresponding parts by weight of clean water and putting the clean water into a container;
step three: adding all the raw materials in the first step into a container filled with the clean water with the corresponding weight parts in the second step, and stirring to uniformly mix the raw materials;
the using method of the gas digestive juice for coal seam gas digestion comprises the following steps:
s1, punching: a joint drilling hole (2) is drilled at one interface of a coal seam (1), then liquid injection drilling holes (8) are drilled at intervals of 2.5-3.5 meters around the joint drilling hole (2) at the same interface, a bag-type hole packer is taken and fixed on a joint steel pipe (7), and the bag-type hole packer and the joint steel pipe (7) are placed in the joint drilling hole (2) together; then a bag-type hole packer is fixed on a liquid injection steel pipe (9), and then the bag-type hole packer and the liquid injection steel pipe are placed in a liquid injection drilling hole (8) together;
s2, hole sealing: firstly, a slurry discharging port of a pneumatic grouting pump is connected with a bag type hole packer on a caulking steel pipe (7) through a quick connector, then a proper amount of inorganic hole packer material is added into a stirring device of the pneumatic grouting pump, and the weight ratio of the inorganic hole packer material to water is 1:12, after uniformly stirring, starting a pneumatic grouting pump, sequentially injecting inorganic hole sealing materials in the pneumatic grouting pump into bags at two ends of a bag type hole packer through a grouting pipe (3), stopping grouting and sealing a hole (2) when the pressure value of the pneumatic grouting pump reaches a set value, after grouting holes in the hole and cracks around the hole, pulling out a quick connector, connecting the quick connector with the bag type hole packer on a grouting steel pipe (9), then starting the pneumatic grouting pump to perform grouting and sealing on the grouting steel pipe (9) by repeating the grouting process of the hole sealing steel pipe (7), grouting the rear bag (5) by the grouting pipe (3), grouting the front bag (4), after the bags at two ends are fully inflated, rising the pressure of the pneumatic grouting pump, after the blasting pressure of the pneumatic grouting blasting valve (6) is reached, blasting the hole sealing pressure of the pneumatic grouting valve (6), and continuing grouting to the hole sealing the hole until the two ends continuously flowing pressure of the pneumatic grouting pump reaches the set value;
s3, caulking: after the hole sealing operation in the step S2 is completed, the mixture stays for 12 hours, the hole sealing slurry liquid is completely solidified, A, B two-component quick-setting inorganic materials are respectively poured into two pneumatic mixers, and the water-material ratio is 1:2, adding water and uniformly stirring, putting two suction pipes of a pneumatic double-liquid grouting pump into two stirring machines, wherein the pneumatic double-liquid grouting pump comprises two suction pipes and one grouting pipe (3), the pressure value can be adjusted between 0 and 100 megapascals, starting the pneumatic double-liquid grouting pump to sequentially inject A, B two-component quick-setting inorganic materials into a caulking drilling hole (2) and a grouting drilling hole (8) through a high-pressure grouting pipe, stopping grouting when the pressure value of the pneumatic double-liquid grouting pump reaches 9 to 11 megapascals, and completing caulking work of the caulking drilling hole (2) and the grouting drilling hole (8);
s4, injecting a gas digestive juice: after the step S3 of caulking is completed, the caulking is stopped for 12 hours, the A, B two-component quick-setting inorganic materials in the caulking drilling hole (2) and the grouting drilling hole (8) are completely solidified, then gas digestive juice is injected into the grouting drilling hole (8) through the grouting steel pipe (9) by using a pneumatic grouting pump, and when the pressure value of the pneumatic grouting pump reaches a grouting set value, the grouting valve is closed.
2. The method of using a gas digestive juice according to claim 1, comprising the following raw materials: 15 parts of dihydroxysuccinic acid, 7.5 parts of carboxylic acid, 5 parts of ammonium carbonate, 5 parts of dodecylbenzene, 1 part of mycose, 0.5 part of adsorbent, 4 parts of baking powder, 8 parts of isooctanol and ethylene oxide condensate and 60 parts of clean water.
3. The method of using a gas digestive juice according to claim 1, comprising the following raw materials: 10 parts of dihydroxysuccinic acid, 5 parts of carboxylic acid, 3 parts of ammonium carbonate, 5 parts of dodecylbenzene, 0.5 part of mycose, 0.3 part of adsorbent, 3 parts of baking powder, 5 parts of isooctanol and ethylene oxide condensate and 40 parts of clean water.
4. The method of using a gas digestive juice according to claim 1, comprising the following raw materials: 20 parts of dihydroxysuccinic acid, 10 parts of carboxylic acid, 6 parts of ammonium carbonate, 10 parts of dodecylbenzene, 0.8 part of mycose, 0.3 part of adsorbent, 6 parts of baking powder, 10 parts of isooctanol and ethylene oxide condensate and 80 parts of clean water, and all the original components are uniformly mixed and stirred to complete the preparation.
5. The method for using a gas digestive juice according to claim 1, characterized in that: the method comprises the steps of (1) carrying out on-site monitoring to determine the gas content of the extracted coal mine and the gas gathering position in the step, then determining the quantity and the punching angle of the injection holes (8), carrying out punching after determining no pressure maintaining factors in the process of punching a selected interface, and leading the injection holes to run along a coal seam (1), wherein the bag type hole packer comprises a front bag (4), a rear bag (5) and an outer diameter of 16mm, a grouting pipe (3) with the inner diameter of 12mm and a blasting valve (6), the blasting valve (6) is positioned between the front bag (4) and the rear bag (5), the blasting valve (6) is arranged on the grouting pipe (3), the front bag (4) of the bag type hole packer on the sealing steel pipe (7) is positioned at one end of the sealing steel pipe (7) close to an orifice, the rear bag (5) is positioned at one end of the sealing steel pipe (7) close to the bottom of the orifice, the positions of the front bag (4) and the rear bag (5) of the injection steel pipe (9) are distributed identically to the steel pipe (7), the front bag (4) and the rear bag (5) of the bag type hole packer are respectively inserted between the front bag (4) and the rear bag (5) and the front bag (5) with the lowest pressure of the bag (5) being 150 mm, the front bag and the front bag (4) and the rear bag (5) are respectively inflated, the pressure of the explosion valve (6) is adjustable between 0.6 and 1.2 megapascals; the diameters of the caulking drilling holes (2) and the grouting drilling holes (8) are 75-90 mm, the depths are 100 m, the outer diameters of the caulking steel pipes (7) and the grouting steel pipes (9) are 35-40 mm, the inner diameters of the caulking steel pipes are 15-20 mm, the caulking steel pipes are all made of multi-section steel pipe head screw connections with the length of 2m, when grouting is performed in the step S2, the grouting pipe (3) firstly performs grouting on the rear bag (5) and then performs grouting on the front bag (4), after the bags at the two ends are fully filled and expanded, the two bags are blocked, the pneumatic grouting pump pressure rises, the blasting valve (6) is blasted after the pneumatic grouting pump pressure reaches the blasting pressure of the blasting valve (6), the pneumatic grouting pump pressure flows towards the two ends of the drilling holes, the pneumatic grouting pump pressure returns to zero again, grouting is continuously performed on the drilling holes between the two bags, and when the pneumatic grouting pump has a pressure value again, the drilling holes within the sealing distance are fully filled with grouting slurry until the pneumatic grouting pump pressure reaches a set value.
6. The method for using a gas digestive juice according to claim 1, characterized in that: the A, B two-component quick-setting inorganic material in the step S3 is a powdery micro-expansion hole sealing material, the performance of the single component is stable after water is added, the single component can be quickly set after being mixed, the A, B two-component quick-setting inorganic material can permeate into all cracks around a drill hole, the two slurries can be set after being mixed stably for 5 minutes, the surrounding cracks are blocked, the compressive strength of the slurry reaches more than 15 megapascals within 1-2 hours, and the reaction temperature is not more than 65 ℃; the method for injecting the gas digestive juice in the step S4 is similar to the grouting hole sealing method, the pneumatic injection pump has no pressure value at the beginning, the gas digestive juice is fully injected into the injection drilling hole (8) when the pressure value rises, the injection is continuously carried out at the moment, the gas digestive juice is stopped to be injected when the injection pressure value of the pneumatic injection pump reaches 2-3 megapascals, after the injection valve is closed, the gas digestive juice needs to stay for 5-50 minutes to wait for the gas digestive juice to permeate into the coal seam (1) under the permeation effect of isooctanol and ethylene oxide condensate, and after the gas digestive juice is injected for 12 hours, the gas digestive juice can be safely mined.
7. The method for using a gas digestive juice according to claim 1, characterized in that: in the step S4, a gas digestive juice is injected into the coal seam (1), and when the gas digestive juice is used for gas extraction, the injected gas digestive juice enables the coal seam gas to be in a free state.
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