CN113209791A - Method and device for treating sulfur dioxide in air outlet well of underground high-sulfur mine - Google Patents
Method and device for treating sulfur dioxide in air outlet well of underground high-sulfur mine Download PDFInfo
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- CN113209791A CN113209791A CN202110628716.6A CN202110628716A CN113209791A CN 113209791 A CN113209791 A CN 113209791A CN 202110628716 A CN202110628716 A CN 202110628716A CN 113209791 A CN113209791 A CN 113209791A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/30—Controlling by gas-analysis apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/30—Alkali metal compounds
- B01D2251/304—Alkali metal compounds of sodium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/606—Carbonates
Abstract
The invention discloses a sulfur dioxide treatment method for an air outlet well of an underground high-sulfur mine, which comprises the following steps of: s1, detecting SO of the peak period of the air shaft2The total discharge amount, the usage amount of the sodium carbonate and the water demand are determined; s2, feeding raw materials of sodium carbonate and water into a sodium carbonate alkali liquor preparation system to obtain alkali liquor for neutralization; s3, conveying the alkali liquor to an alkali liquor spraying system, and performing desulfurization and purification treatment on the return air flow, the invention also discloses an underground high-sulfur mine air outlet well sulfur dioxide treatment device, which comprises: the sodium carbonate alkali liquor preparation system comprises a preparation pool and a storage pool; the alkali liquor spraying system comprises a first fog curtain, a second fog curtain and a third fog curtain. The method and the device for treating sulfur dioxide in the air outlet well of the underground high-sulfur mine integrate smoke elimination and desulfurizationAnd the dust removal is integrated and simultaneously completed, the structure is simple and compact, the process flow is reasonable, and the interior is not easy to scale and block.
Description
Technical Field
The invention relates to the technical field related to air pollution control and environmental protection, in particular to a method and a device for treating sulfur dioxide in an air outlet well of an underground high-sulfur mine.
Background
SO2Is an acidic gas with pungent odor, and is easily soluble in water, SO2After being inhaled into a human body, the traditional Chinese medicine composition can stimulate respiratory mucosa, and when the inhalation exceeds a certain amount, the traditional Chinese medicine composition can cause serious injury to various organs of the body and even endanger life; SO (SO)2A large amount of SO which is discharged into the atmosphere and can cause great harm to plants and the ecological environment2After being dissolved in water, the plant epidermis is damaged, scorched and even dead along with rainfall, so that the soil fertility is reduced, and the organisms such as fishes in rivers and lakes die.
The sulfur content of ore bodies of high-sulfur mines is high, the sulfur content grade of ore bodies of some mined mines is 20-30%, and individually reaches about 40%, in the mining process, sulfide is in contact with air to generate chemical reaction, a large amount of toxic gases such as sulfur dioxide can be generated, a large amount of heat is emitted, the high-temperature toxic gases deteriorate the underground operation environment, the physical and mental health of workers is directly influenced, and meanwhile, the toxic gases are discharged to the ground surface through a main return air roadway and an air outlet well of the mine, SO that the environments such as forests, farmlands, fish ponds and the like around mines and wind wells are seriously polluted, and therefore, effective measures must be taken to recover the SO while the mines are mined2Flue gas treatment, generally SO treatment2The main methods of the waste gas include dry method and wet method, and the dry method or semi-dry methodThe absorption is generally carried out by using Ca (OH)2Dry desulfurization methods, which are main components, and selective catalytic reduction methods are also one of the dry methods widely used for treating fuel exhaust gas; the existing flue gas SO is obtained by lime/limestone and other alkali liquor absorption methods2The main methods for treating waste gas by wet method include sodium hydroxide or sodium sulfite absorption method, basic alumina method, ammonia method flue gas wet desulfurization technique and seawater wet desulfurization.
Among the above treatment methods, the dry method has the disadvantages of high operation cost, obvious unsuitability for mine environment and the like, the lime/limestone wet method is better, but the method has the disadvantages of easy scaling and blockage, large lime consumption and the like, and other wet treatment methods have the problems of large water consumption, large equipment investment, large energy consumption and complex system.
Disclosure of Invention
The invention aims to provide a method and a device for treating sulfur dioxide in an air outlet well of an underground high-sulfur mine, which are used for solving the problems that the existing treatment method in the background technology has the defects of high resource consumption, high implementation difficulty, high investment cost and unsuitability for the actual production situation of mines.
The invention provides a method and a device for treating sulfur dioxide in an air outlet well of an underground high-sulfur mine2The flue gas is desulfurized, thus achieve the goal of purifying the air flow of the return air shaft, the treatment method is simple and easy to implement, the technology is mature, and the method is suitable for the mine environment.
In order to achieve the purpose, the invention provides the following technical scheme:
a sulfur dioxide treatment method for an air outlet well of an underground high-sulfur mine comprises the following steps:
s1, detecting SO of the peak period of the air shaft2The total discharge amount, the usage amount of the sodium carbonate and the water demand are determined;
s2, feeding raw materials of sodium carbonate and water into a sodium carbonate alkali liquor preparation system to obtain alkali liquor for neutralization;
s3, conveying the alkali liquor to an alkali liquor spraying system, and performing desulfurization and purification treatment on the return air flow, wherein the desulfurization principle is as follows:
Na2CO3+SO2→Na2SO3+CO2
2Na2SO3+O2→2Na2SO4
Na2CO3with SO2Reaction to form Na2SO3，Na2SO3And with O in the air2Reacting to produce harmless Na2SO4The solution does not produce secondary pollutants.
The utility model provides a device is administered to high sulfur mine air-out well sulfur dioxide in underground, includes:
the sodium carbonate alkali liquor preparation system is arranged in a waste shunting yard or an ore exploring chamber or an adjacent ore exploring tunnel or other auxiliary chambers near the main return air tunnel, and comprises a preparation pool and a storage pool;
the alkali liquor spraying system is arranged in the main air return roadway and comprises a first fog curtain, a second fog curtain and a third fog curtain, and a water outlet pipe is connected between the alkali liquor spraying system and the sodium carbonate alkali liquor preparation system;
and the medicine storage chamber is used for storing sodium carbonate raw materials.
Further, the preparation pond with be provided with wide 0.4 meters between the holding pond, high 1 meter's concrete partition wall, the partition wall is close to wide 0.25 meters, high 1 meter's sluice is installed to one side in preparation pond, and the sluice gate department of sluice installs the filter screen.
Furthermore, the top surfaces of the preparation pool and the storage pool are paved with a reticular protection platform, the height of the preparation pool and the storage pool is 1.2 m, and the length and the width of the preparation pool and the storage pool are respectively determined by the preparation amount of the alkali liquor and the storage amount of the alkali liquor.
Further, install the agitator in the preparation pond, the top in preparation pond has been seted up and has been put alkali mouth and water inlet, the water inlet is linked together with the inlet tube, install the gate valve on the inlet tube, just water pump II is connected to the other end of inlet tube, water pump II is used for supplying water for alkali lye preparation.
Further, the holding pond is kept away from one side in preparation pond is provided with wide 0.8 meters, high 1.1 meters's removal step, two mouths of drawing water have been seted up to the bottom in holding pond, draw water mouth connection water pump I, just the other end of water pump I with the outlet pipe links to each other.
Further, first fog curtain, second fog curtain and third fog curtain arrange in proper order along the return air direction, and the interval between adjacent two-layer fog curtain is 0.8 to 1.2 meters, be fixed with two shower of parallel from top to bottom on the first fog curtain, these two shower are apart from ground 0.8 to 1.2 meters and 2.8 to 3.2 meters respectively, be provided with a shower apart from ground 1.8 to 2.2 meters on the second fog curtain, be provided with on the third fog curtain and arrange the same two shower with on the first fog curtain, all install independent switch on first fog curtain, second fog curtain and the third fog curtain, main return air tunnel installs SO in the air outlet department on earth's surface2Detector, independent switch and SO2The detectors are all connected with a ground monitoring center.
Further, first fog curtain with on the second fog curtain the shower is connected 4 to 8 fan-shaped fine atomizing nozzle of carborundum, and half fine atomizing nozzle down, half fine atomizing nozzle up, and upward and fine atomizing nozzle staggered arrangement down, and the interval between two adjacent fine atomizing nozzles is 0.6 to 1.2 meters, on the third fog curtain the shower is connected 5 to 9 odd number fan-shaped fine atomizing nozzle of carborundum, 3 to 5 up, 2 to 4 down, and upward and fine atomizing nozzle staggered distribution interval down is 0.6 to 1.2 meters.
Furthermore, the rear side of the third fog curtain is provided with a nylon net, the nylon net is fixed in a roadway rock wall through expansion bolts, the front end of the fine atomizing nozzle is inserted into a rock hole of the roadway wall which is constructed in advance, and the rear end of the fine atomizing nozzle is erected on the water outlet pipe.
An application of a sulfur dioxide treatment device for an air outlet well of an underground high-sulfur mine in a sulfur dioxide treatment method for the air outlet well of the underground high-sulfur mine.
The sulfur dioxide is treated by adopting the sulfur dioxide treatment device for the air outlet well of the underground high-sulfur mine.
Compared with the prior art, the invention has the beneficial effects that: the method and the device for treating sulfur dioxide in the air outlet well of the underground high-sulfur mine integrate the technical design of smoke abatement, desulfurization and dust removal and are simultaneously completed, the structure is simple and compact, the process flow is reasonable, the inside is not easy to scale and block, alkali liquor is sprayed by an alkali liquor spraying system to reduce the concentration of SO2 in return air airflow, the standard discharge of mine foul air is realized, the surrounding environment of the air outlet well is ensured, a sodium carbonate solution is prepared by a sodium carbonate alkali liquor preparation system to serve as a SO2 neutralization reactant, the times and the cost of system pause and maintenance caused by scale and block are effectively reduced, a silicon carbide fan-shaped nozzle is adopted for efficient jet atomization, no wearing parts are designed in the equipment, the smoke is fully contacted with the solution, and the most efficient desulfurization and dust removal are ensured.
Drawings
FIG. 1 is a schematic sectional view of a sodium carbonate lye preparation system of the present invention;
FIG. 2 is a schematic top view of a sodium carbonate lye preparation system of the construction of the present invention;
FIG. 3 is a schematic elevation view of the lye spraying system of the construction of this invention;
FIG. 4 is a schematic layout of a sodium carbonate lye preparation system and a spraying system of the structure of the present invention;
fig. 5 is a partially enlarged view of fig. 4 showing the structure of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a sodium carbonate lye preparation system; 2. an ore prospecting roadway; 3. an alkali liquor spraying system; 4. a main return air roadway; 5. a medicine storage room; 6. a water outlet pipe; 7. a water inlet pipe; 8. a water pump I; 9. a water pump II; 11. a preparation pool; 12. a stirrer; 13. a gate valve; 14. a storage tank; 15. a protection platform; 16. filtering with a screen; 17. an alkali discharging port; 18. a water inlet; 19. moving the step; 31. a first fog screen; 32. a second fog screen; 33. a third fog curtain; 34. a nylon mesh; 35. a fine atomizing nozzle; 36. and (4) a spray pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a sulfur dioxide treatment method for an air outlet well of an underground high-sulfur mine comprises the following steps:
s1, detecting SO of the peak period of the air shaft2The total discharge amount, the usage amount of the sodium carbonate and the water demand are determined;
s2, feeding raw materials of sodium carbonate and water into a sodium carbonate alkali liquor preparation system 1 to obtain alkali liquor for neutralization;
s3, conveying the alkali liquor to the alkali liquor spraying system 3, and performing desulfurization and purification treatment on the return air flow, wherein the desulfurization principle is as follows:
Na2CO3+SO2→Na2SO3+CO2
2Na2SO3+O2→2Na2SO4
Na2CO3with SO2Reaction to form Na2SO3，Na2SO3And with O in the air2Reacting to produce harmless Na2SO4The solution does not produce secondary pollutants.
The sodium carbonate solution sprays the return air flow, SO that SO in the air flow can be absorbed2The smoke and dust removing function is realized, and the scale and blockage phenomenon is avoided.
Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a device is administered to high sulfur mine air-out well sulfur dioxide in underground, includes:
the sodium carbonate alkali liquor preparation system 1 is arranged in a waste shunting yard or an ore exploring chamber or an adjacent ore exploring tunnel 2 or other auxiliary chambers near a main return air tunnel 4, and the sodium carbonate alkali liquor preparation system 1 comprises a preparation pool 11 and a storage pool 14;
the alkali liquor spraying system 3 is arranged in the main air return roadway 4, the alkali liquor spraying system 3 comprises a first fog curtain 31, a second fog curtain 32 and a third fog curtain 33, and a water outlet pipe 6 is connected between the alkali liquor spraying system 3 and the sodium carbonate alkali liquor preparation system 1;
and the medicine storage room 5 is used for storing sodium carbonate raw materials.
When the underground high-sulfur mine air outlet well sulfur dioxide treatment device is used, SO2SO of air outlet wellhead detected by detector2Concentration of SO2After the concentration exceeds the preset concentration, starting an alkali liquor spraying system 3, adding a proper amount of sodium carbonate into a sodium carbonate alkali liquor preparation system 1 according to the spraying time, stirring and dissolving the sodium carbonate by using a stirrer 12 to obtain alkali liquor, overflowing the alkali liquor into a storage tank 14, opening a water gate after the alkali liquor preparation is finished to ensure that the alkali liquor in a preparation tank 11 is completely utilized, starting a water pump I8, and pumping the alkali liquor in the storage tank 14 into a spraying pipe 36 for SO2The absorption of flue gas sprays, sprays after finishing, through floater liquid level switch automatic shutdown water pump II 9 work in the cistern, and the secondary alkali lye after the absorption automatically flows into the tunnel escape canal, and the acidic rivers along the way of neutralization.
Example (b): the detection result of a certain high-sulfur copper mine Shanxi air shaft shows that the sulfur dioxide volume concentration is 0.005%, the air output of the West air shaft is 100m3/s, and the sulfur dioxide mass concentration is about 13 g/s.
Based on the above detection results, the amount of sodium carbonate alkali solution for neutralization was calculated:
sodium carbonate 106 × 13/64=21.5g/s, i.e. 77.4kg/h per hour;
estimated water consumption of about 31.5m3/h。
The sodium carbonate alkali liquor preparation system 1 is selected from an exploration roadway 2 with 568 meters middle section and 23 # exploration line waste, the exploration roadway is 3.8 meters wide and 3.4 meters high, and the alkali liquor spraying system 3 is arranged in a main air return roadway 4 with 23 # to 24 # exploration line straight, which is shown in detail in figure 4.
In this embodiment, as shown in fig. 1, a concrete partition wall with a width of 0.4m and a height of 1 m is disposed between the preparation tank 11 and the storage tank 14, a sluice with a width of 0.25 m and a height of 1 m is installed on one side of the partition wall near the preparation tank 11, a filter screen 16 is installed at a sluice gate of the sluice, and the alkali liquor in the preparation tank 11 needs to be filtered by the filter screen 16 and then flows into the storage tank 14, so as to ensure the quality of the prepared alkali liquor.
The top surfaces of the preparation tank 11 and the storage tank 14 are paved with a reticular protection platform 15, the height of the preparation tank 11 and the height of the storage tank 14 are 1.2 m, the length and the width of the two tanks are respectively determined by the preparation amount of the alkali liquor and the storage amount of the alkali liquor, in the embodiment, the preparation amount of the alkali liquor is needed to determine that the length of the alkali liquor preparation tank 11 is 4m and the width of the alkali liquor preparation tank is 3.8 m, and the length of the storage tank 14 is 10 m and the width of the storage tank is 3.8 m according to the needed storage amount.
In this embodiment, as shown in fig. 1 and 4, install agitator 12 in the preparation pond 11, impeller adopts acid and alkali-resistance material, and alkali discharge 17 and water inlet 18 have been seted up at the top of preparation pond 11, and water inlet 18 is linked together with inlet tube 7, installs gate valve 13 on the inlet tube 7, and the other end of inlet tube 7 connects water pump II 9, and water pump II 9 is used for supplying water for the alkali lye preparation, and the preparation water can adopt the air shaft to gush water or block and build the retaining dam in total return air tunnel 1.
In this embodiment, one side of the storage tank 14, which is far away from the preparation tank 11, is provided with a movable step 19 with a width of 0.8 meter and a height of 1.1 meter, so that the addition of the preparation system medicament and the maintenance and management of the system by personnel are facilitated, two water pumping ports are formed in the bottom of the storage tank 14 and are connected with the water pump I8, the other end of the water pump I8 is connected with the water outlet pipe 6, the two water pumps I8 are used for one purpose and made of alkali corrosion resistant materials, the flow of the water pump I8 is determined according to the requirement of a neutralizing solution, and the water pressure of the micro-atomizing nozzle 35 is more than 0.4 MPa.
In this embodiment, as shown in fig. 3, a first fog screen 31, a second fog screen 32 and a third fog screen 33 are sequentially arranged along a return air direction, an interval between two adjacent fog screens is 0.8 to 1.2 meters, two spray pipes 36 which are parallel up and down are fixed on the first fog screen 31, the two spray pipes 36 are respectively 0.8 to 1.2 meters and 2.8 to 3.2 meters away from the ground, a spray pipe 36 which is 1.8 to 2.2 meters away from the ground is arranged on the second fog screen 32, and two spray pipes 36 which are the same as those arranged on the first fog screen 31 are arranged on the third fog screen 33.
In the embodiment, as shown in fig. 3, the spray pipes 36 on the first mist curtain 31 and the second mist curtain 32 are connected with 4 to 8 fan-shaped fine atomization nozzles 35 of silicon carbide, half of the fine atomization nozzles 35 face downward, half of the fine atomization nozzles 35 face upward, the upward and downward fine atomization nozzles 35 are arranged in a staggered manner, the interval between two adjacent fine atomization nozzles 35 is 0.6 to 1.2 meters, the spray pipes 36 on the third mist curtain 33 are connected with 5 to 9 odd number of fan-shaped fine atomization nozzles 35 of silicon carbide, 3 to 5 upward, 2 to 4 downward, upward and downward fine atomization nozzles 35 are arranged in a staggered manner, the interval is 0.6 to 1.2 meters, and the fine atomization nozzles 35 spray atomized alkali liquor, thereby effectively improving the utilization rate of the alkali liquor.
In this embodiment, a nylon net 34 is arranged at the rear side of the third curtain 33, the nylon net 34 is fixed in the rock wall of the roadway through expansion bolts, the front end of the fine atomizing nozzle 35 is inserted into a rock hole of the roadway wall constructed in advance, the rear end of the fine atomizing nozzle 35 is erected on the water outlet pipe 6, the water outlet pipe 6 and the water inlet pipe 7 both adopt steel-plastic composite pipes, and the nylon net 34 is used for hanging alkali liquor in the air in a grid and performing a neutralization reaction with the passing wind flow again.
In this embodiment, the first fog curtain 31, the second fog curtain 32 and the third fog curtain 33 are all provided with independent switches, and the main return air channel 4 is provided with an SO at the air outlet on the ground surface2Detector, independent switch and SO2The detectors are all connected with a ground monitoring center, and the independent switch facilitates the system to operate according to SO2Concentration regulation of spray intensity and spray time, SO2Detector real-time monitoring SO in air2And (4) concentration.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A sulfur dioxide treatment method for an air outlet well of an underground high-sulfur mine is characterized by comprising the following steps:
s1, detecting SO of the peak period of the air shaft2The total discharge amount, the usage amount of the sodium carbonate and the water demand are determined;
s2, feeding raw materials of sodium carbonate and water into a sodium carbonate alkali liquor preparation system (1) to obtain alkali liquor for neutralization;
s3, conveying the alkali liquor to an alkali liquor spraying system (3), and performing desulfurization and purification treatment on the return air flow, wherein the desulfurization principle is as follows:
Na2CO3+SO2→Na2SO3+CO2
2Na2SO3+O2→2Na2SO4
Na2CO3with SO2Reaction to form Na2SO3，Na2SO3And with O in the air2Reacting to produce harmless Na2SO4The solution does not produce secondary pollutants.
2. The utility model provides a device is administered to high sulfur mine air-out well sulfur dioxide in underground, its characterized in that includes:
the sodium carbonate alkali liquor preparation system (1) is arranged in a waste shunting yard or an ore exploring chamber or an adjacent ore exploring tunnel (2) or other auxiliary chambers near a main return air tunnel (4), and the sodium carbonate alkali liquor preparation system (1) comprises a preparation pool (11) and a storage pool (14);
the alkali liquor spraying system (3) is installed in the main air return roadway (4), the alkali liquor spraying system (3) comprises a first fog curtain (31), a second fog curtain (32) and a third fog curtain (33), and a water outlet pipe (6) is connected between the alkali liquor spraying system (3) and the sodium carbonate alkali liquor preparation system (1);
and the medicine storage room (5) is used for storing the sodium carbonate raw material.
3. The underground high-sulfur mine air-out well sulfur dioxide treatment device of claim 2, which is characterized in that: prepare pond (11) with be provided with wide 0.4 meter between storage pond (14), high 1 meter's concrete partition wall, the partition wall is close to wide 0.25 meter, high 1 meter's sluice gate is installed to one side of preparation pond (11), and sluice gate department installation filter screen (16).
4. The underground high-sulfur mine air-out well sulfur dioxide treatment device of claim 3, which is characterized in that: the top surfaces of the preparation pool (11) and the storage pool (14) are paved with a reticular protection platform (15), the heights of the preparation pool (11) and the storage pool (14) are 1.2 m, and the lengths and the widths of the two pools are respectively determined by the preparation amount of the alkali liquor and the storage amount of the alkali liquor.
5. The underground high-sulfur mine air-out well sulfur dioxide treatment device of claim 4, which is characterized in that: install agitator (12) in preparation pond (11), the top in preparation pond (11) has been seted up and has been put alkali mouth (17) and water inlet (18), water inlet (18) are linked together with inlet tube (7), install gate valve (13) on inlet tube (7), just water pump II (9) are connected to the other end of inlet tube (7), water pump II (9) are used for supplying water for the alkali lye preparation.
6. The underground high-sulfur mine air-out well sulfur dioxide treatment device of claim 4, which is characterized in that: keep away from in reservoir (14) one side of preparation pond (11) is provided with wide 0.8 meters, high 1.1 meters removal step (19), two mouths of drawing water have been seted up to the bottom in reservoir (14), draw water mouth connection water pump I (8), just the other end of water pump I (8) with outlet pipe (6) link to each other.
7. The underground high-sulfur mine air-out well sulfur dioxide treatment device of claim 2, which is characterized in that: the first fog curtain (31), the second fog curtain (32) and the third fog curtain (33) are sequentially arranged along the air return direction, the interval between two adjacent fog curtains is 0.8-1.2 m, two spray pipes (36) which are parallel up and down are fixed on the first fog curtain (31),these two shower pipes (36) are apart from ground 0.8 to 1.2 meters and 2.8 to 3.2 meters respectively, be provided with one on second fog curtain (32) apart from ground 1.8 to 2.2 meters shower pipe (36), be provided with on third fog curtain (33) and arrange two same shower pipes (36) with first fog curtain (31), all install independent switch on first fog curtain (31), second fog curtain (32) and third fog curtain (33), main return air tunnel (4) are installed SO in the air outlet department on earth's surface2Detector, independent switch and SO2The detectors are all connected with a ground monitoring center.
8. The underground high-sulfur mine air-out well sulfur dioxide treatment device of claim 7, which is characterized in that: first fog curtain (31) with on second fog curtain (32) shower (36) connect 4 to 8 fan-shaped fine atomizing nozzle of carborundum (35), and half fine atomizing nozzle (35) down, half fine atomizing nozzle (35) up, upward and fine atomizing nozzle (35) staggered arrangement down, the interval between two adjacent fine atomizing nozzle (35) is 0.6 to 1.2 meters, on third fog curtain (33) shower (36) connect 5 to 9 odd number fan-shaped fine atomizing nozzle of carborundum (35), 3 to 5 upward, 2 to 4 downward, upward and fine atomizing nozzle (35) staggered arrangement interval 0.6 to 1.2 meters down.
9. The underground high-sulfur mine air-out well sulfur dioxide treatment device of claim 8, which is characterized in that: the rear side of third fog curtain (33) is provided with nylon wire (34), nylon wire (34) are fixed in the tunnel cliff through expansion bolts, during the front end of fine atomizing nozzle (35) inserted the rock hole of the tunnel cliff of being under construction in advance, the rear end of fine atomizing nozzle (35) was erect and is located on outlet pipe (6).
10. An application of a sulfur dioxide treatment device for an air outlet well of an underground high-sulfur mine in a sulfur dioxide treatment method for the air outlet well of the underground high-sulfur mine.
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Application publication date: 20210806 |