A hydrogen sulfide gas treatment system during underground coal mine construction

Abstract

The present invention discloses a hydrogen sulfide gas treatment system for underground construction period of coal mine, comprising a shell, wherein the upper and lower ends of the shell are respectively connected with an air inlet pipe and a discharge pipe, a purification mechanism and a flow guide mechanism of a coaxial structure are respectively installed inside the shell, the flow guide mechanism is located outside the purification mechanism, a filter ring cylinder is installed on the side wall of the shell, a shell cover surrounding the outside of the filter ring cylinder is also installed outside the side wall of the shell, a hole cleaning mechanism for processing the filter holes of the filter ring cylinder is installed on the shell cover, and an exhaust pump for sucking the gas on the inner wall of the shell cover is installed on the outer shell wall of the shell cover.

Description

Technical Field

[0001] The invention relates to the technical field of hydrogen sulfide treatment, and in particular to a hydrogen sulfide gas treatment system during underground coal mine construction. Background Art

[0002] In the process of coal mining, especially during the underground construction period, the presence of hydrogen sulfide gas is a serious safety hazard. Hydrogen sulfide is a colorless, highly toxic gas with the smell of rotten eggs. It not only poses a direct threat to human health, but also may cause corrosion to underground equipment.

[0003] At present, in the existing systems used for treating hydrogen sulfide gas during the underground construction period of coal mines, the treatment of hydrogen sulfide gas is not thorough, there are safety hazards, the filter holes are easily clogged, and regular cleaning is required, which affects the construction efficiency.

[0004] Therefore, it is necessary to provide a hydrogen sulfide gas treatment system during the underground construction period of a coal mine to solve the problems raised in the above background technology. Summary of the invention

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hydrogen sulfide gas treatment system for underground construction period of a coal mine, comprising a shell, the upper and lower ends of the shell are respectively connected to an air inlet pipe and a discharge pipe, a purification mechanism and a flow guide mechanism of a coaxial structure are respectively installed inside the shell, the flow guide mechanism is located outside the purification mechanism, a filter ring cylinder is installed on the side wall of the shell, and a shell cover surrounding the outside of the filter ring cylinder is also installed on the outside of the side wall of the shell, a hole cleaning mechanism for processing the filter holes of the filter ring cylinder is installed on the shell cover, and an exhaust pump for sucking the gas on the inner wall of the shell cover is installed on the outer shell wall of the shell cover.

[0006] Furthermore, the purification mechanism includes a flow-displacing fan rotatably installed in the inner cavity of the air inlet pipe, wherein a shaft extending into the upper end of the shell is fixed at the center of the flow-displacing fan, a shaft tube located in the shell is fixed at the lower end of the shaft rod, the lower end of the shaft tube extends into the discharge pipe, and the lower end of the lumen of the shaft tube is rotatably connected to a liquid inlet pipe for introducing sodium hydroxide solution, and a plurality of mist spray pipes connected to the lumen of the shaft tube are arranged on the tube wall of the shaft tube.

[0007] Furthermore, the flow guiding mechanism includes a rotating drum shell, the upper end of the rotating drum shell is located below the flow-displacing fan 1, the upper end of the rotating drum shell is rotatably connected to the inner tube cavity of the air inlet pipe, the upper end inner shell opening of the rotating drum shell is fixed with the flow-displacing fan 2 sleeved on the outside of the shaft rod, the rotating drum shell and the shell body form an annular cavity covering the filter ring tube, at least one group of double concave conical rings are installed on the inner shell wall of the rotating drum shell, mist nozzles connected to the tube cavity of the shaft tube are respectively arranged at the upper and lower parts of the double concave conical ring, a contraction ring opening is formed between the center opening of the double concave conical ring and the shaft tube, a diffusion cone ring is sleeved on the outer wall of the shaft tube below the contraction ring opening, and the gas inside the rotating drum shell enters the annular cavity through the lower cavity opening of the annular cavity.

[0008] Furthermore, the concave conical surface of the double concave conical ring is provided with a return air port, and a return air duct connected to the return air port is provided in the rotating drum shell, and a flow-displacing fan three is rotatably installed on the upper end of the return air duct, and a gear ring two is installed on the outer side of the flow-displacing fan three, and the gear ring two is meshingly connected with the gear ring three coaxially installed with the shaft rod.

[0009] Furthermore, the return air port is covered with a filter screen.

[0010] Furthermore, the outer wall of the drum shell is provided with a scraper bar 1 located in the annular cavity, the scraper bar 1 is in contact with the inner wall of the filter ring drum, and the lower end of the scraper bar 1 is provided with a scraper bar 2 in contact with the inner lower end wall of the shell.

[0011] Furthermore, the conical surface of the diffusion cone ring is provided with circumferentially distributed jet grooves.

[0012] Furthermore, a material guiding screw blade located in a discharge pipe is installed on the outer tube wall of the lower end of the shaft tube.

[0013] Furthermore, the hole cleaning mechanism includes a rotating ring frame and a motor. The rotating ring frame is rotatably mounted on the shell, and a hole cleaning nail roller that rolls around the filter ring cylinder is rotatably mounted on the inner side of the rotating ring frame. A gear ring 1 is mounted on the outer side of the rotating ring frame. The motor is mounted on the shell cover, and a gear meshing with the gear ring 1 is mounted on the output end of the motor.

[0014] Furthermore, the hole cleaning nail roller comprises a roller body, a roller surface of which is provided with a plurality of radial sliding grooves, in which puncturing nails slide, and the puncturing nails are connected to the sliding grooves via springs.

[0015] Compared with the prior art, the present invention provides a hydrogen sulfide gas treatment system during coal mine construction, which has the following features:

[0016] Beneficial effects:

[0017] The present invention uses the structural design of the mist spray pipe and the filter ring cylinder to achieve dual purification of hydrogen sulfide gas during the underground construction period of the coal mine, making the treatment of hydrogen sulfide more comprehensive and improving the purification effect of hydrogen sulfide. Specifically, through the structural design of the purification mechanism and the guide mechanism, a plurality of relatively separated treatment chambers are formed inside the drum shell, so that the distribution density of the sodium hydroxide molecules sprayed by high-concentration atomization is higher and the atomized molecule state time is longer, so that they can fully react with the hydrogen sulfide-containing gas, which is beneficial for the particulate matter in the sulfur-containing gas and the reactants reacting with the sulfur-containing gas to fall smoothly into the discharge pipe, thereby improving the treatment effect of the sulfur-containing gas; through the structural design of the hole cleaning mechanism, the filter holes of the filter net cylinder for secondary treatment of hydrogen sulfide gas can maintain an efficient filtering effect in real time, and the clean filter residues of the filter holes of the filter net cylinder can fall into the shell, which is beneficial to the purity of the gas in the shell cover, so that the gas discharged by the exhaust pump has a higher purity and improves the safety of gas discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the hydrogen sulfide gas treatment system during the underground construction period of a coal mine according to the present invention;

[0019] Figure 2 The partial structure of the hydrogen sulfide gas treatment system during the underground construction period of the coal mine of the present invention is shown in FIG. Figure 1 ;

[0020] Figure 3 The partial structure of the hydrogen sulfide gas treatment system during the underground construction period of the coal mine of the present invention is shown in FIG. Figure 2 ;

[0021] Figure 4 For the present invention Figure 3 Schematic diagram of local structure;

[0022] Figure 5 This is a schematic diagram of the hole cleaning nail structure of the present invention;

[0023] Figure 6 The structure of the hydrogen sulfide gas treatment system during the underground construction period of the coal mine of the present invention is schematically shown. Figure 3 ;

[0024] In the figure: 1, shell; 2, filter ring cylinder; 3, purification mechanism; 4, shell cover; 5, hole cleaning mechanism; 6, flow guide mechanism; 11, air inlet pipe; 12, discharge pipe; 31, flow drive fan 1; 32, shaft rod; 33, shaft pipe; 34, mist spray pipe; 35, diffusion cone ring; 36, liquid inlet pipe; 37, material guide screw blade; 351, jet trough; 51, rotating ring frame; 52, hole cleaning nail roller; 53, gear ring 1; 54, Motor; 55, gear; 56, exhaust pump; 521, roller body; 522, slide groove; 523, spring; 524, puncture nail; 61, drum shell; 62, flow-displacing fan 2; 63, ring cavity; 64, flow-displacing fan 3; 65, gear ring 2; 66, gear ring 3; 67, scraper bar 1; 68, scraper bar 2; 611, double concave cone ring; 612, return air duct; 6111, return air port; 6112, filter screen. DETAILED DESCRIPTION

[0025] Reference Figure 1-Figure 6 The present invention provides a technical solution: a hydrogen sulfide gas treatment system during the underground construction period of a coal mine, comprising a shell 1, the upper and lower ends of the shell 1 are respectively connected to an air inlet pipe 11 and a discharge pipe 12, the interior of the shell 1 is respectively installed with a purification mechanism 3 and a flow guide mechanism 6 of a coaxial structure, the flow guide mechanism 6 is located outside the purification mechanism 3, a filter ring cylinder 2 is installed on the side wall of the shell 1, and a shell cover 4 surrounding the outside of the filter ring cylinder 2 is also installed on the outside of the side wall of the shell 1, a hole cleaning mechanism 5 for processing the filter holes of the filter ring cylinder 2 is installed on the shell cover 4, and an exhaust pump 56 for sucking the inner wall gas of the shell cover 4 is installed on the outer shell wall of the shell cover 4.

[0026] In this embodiment, the purification mechanism 3 includes a flow-displacing fan 31 rotatably installed in the inner cavity of the air inlet pipe 11, and a shaft 32 extending into the upper end of the shell 1 is fixed at the center of the flow-displacing fan 31, and a shaft tube 33 located in the shell 1 is fixed at the lower end of the shaft rod 32, and the lower end of the shaft tube 33 extends into the discharge pipe 12, and the lower end of the lumen of the shaft tube 33 is rotatably connected to a liquid inlet pipe 36 for introducing sodium hydroxide solution, and a plurality of mist nozzles 34 connected to the lumen of the shaft tube 33 are arranged on the wall of the shaft tube 33; the hydrogen sulfide-containing gas is purified by the sodium hydroxide solution sprayed by high-concentration atomization.

[0027] In this embodiment, the flow guide mechanism 6 includes a drum shell 61, the upper end of the drum shell 61 is located below the flow fan 1 31, the upper end of the drum shell 61 is rotatably connected to the inner tube cavity of the intake pipe 11, and the inner shell opening of the upper end of the drum shell 61 is fixed with a flow fan 2 62 sleeved on the outside of the shaft rod 32. The drum shell 61 and the shell body 1 form an annular cavity 63 covering the filter ring tube 2, and at least one group of double concave cone rings 611 are installed on the inner shell wall of the drum shell 61, and the upper and lower parts of the double concave cone rings 611 are respectively provided with connecting holes connected to the tube cavity of the shaft tube 33. A steam spray nozzle 34 is provided, a contraction ring opening is formed between the central opening of the double concave cone ring 611 and the shaft tube 33, a diffusion cone ring 35 is sleeved on the outer wall of the shaft tube 33 below the contraction ring opening, and the gas inside the drum shell 61 enters the ring cavity 63 through the lower cavity opening of the ring cavity 63; through the structural design of the double concave cone ring 611, a plurality of relatively separated processing chambers are formed inside the drum shell 61, so that the distribution density of the sodium hydroxide molecules sprayed by high-concentration atomization is higher and the atomization molecule state time is longer, so that it can fully react with the hydrogen sulfide-containing gas.

[0028] In this embodiment, the concave conical surface of the double concave conical ring 611 is provided with a return air port 6111, and a return air duct 612 connected to the return air port 6111 is provided in the rotating drum shell 61. A flow-displacing fan three 64 is rotatably installed on the upper end of the return air duct 612, and a gear ring two 65 is installed on the outer side of the flow-displacing fan three 64. The gear ring two 65 is meshingly connected with a gear ring three 66 coaxially installed with the shaft rod 33; the rotation of the shaft rod 33 can drive the gear ring three 66 to rotate, and the gear ring three 66 drives the gear ring two 65 and the flow-displacing fan three 64 to rotate, thereby having a suction effect on the return air duct 612.

[0029] In this embodiment, the return air port 6111 is covered with a filter 6112 to filter and remove the large particle molecules of gas and vapor-liquid entering the return air port 6111 .

[0030] In this embodiment, the outer wall of the drum shell 61 is installed with a scraper bar 67 located in the annular cavity 63, and the scraper bar 67 is in contact with the inner wall of the filter ring cylinder 2. The lower end of the scraper bar 67 is installed with a scraper bar 2 68 in contact with the inner lower end shell wall of the shell 1; the inner wall of the filter ring cylinder 2 is scraped by the scraper bar 67 to maintain the cleanliness of the inner wall of the filter ring cylinder 2, and at the same time, the filter residue on the inner wall of the filter ring cylinder 2 is scraped off in time; the filter residue at the inner lower end of the shell 1 is scraped into the discharge pipe 12 by the scraper bar 2 68 to avoid the filter residue from accumulating in the inner lower end area of ​​the shell 1, thereby ensuring the smoothness of the air intake at the lower port of the annular cavity 63.

[0031] In this embodiment, the conical surface of the diffusion cone ring 35 is provided with circumferentially distributed jet grooves 351 , which is beneficial to further improve the effect of uniform jet dispersion of the gas and liquid vapor diffused by the diffusion cone ring 35 .

[0032] In this embodiment, a material guiding screw blade 37 located in the discharge pipe 12 is installed on the outer tube wall of the lower end of the shaft tube 33 .

[0033] In this embodiment, the hole cleaning mechanism 5 includes a rotating ring frame 51 and a motor 54. The rotating ring frame 511 is rotatably installed on the shell 1. A hole cleaning nail roller 52 that rolls around the filter ring cylinder 2 is rotatably installed on the inner side of the rotating ring frame 51. A gear ring 53 is installed on the outer side of the rotating ring frame 51. The motor 54 is installed on the shell cover 4. A gear 55 meshing with the gear ring 53 is installed on the output end of the motor 54; that is, the gear 55 is driven by the motor 54 to drive the gear ring 53 to rotate, thereby driving the hole cleaning nail roller 52 to roll circumferentially on the cylinder surface of the filter ring cylinder 2.

[0034] In this embodiment, the hole cleaning nail roller 52 includes a roller body 521, and a plurality of radial sliding grooves 522 are opened on the roller surface of the roller body 521, and a puncturing nail 524 slides in the sliding groove 522, and the puncturing nail 524 is connected to the sliding groove 522 by a spring 523; when the puncturing nail 524 cooperates with the filter hole of the filter ring cylinder 2, the puncturing nail 524, under the action of the spring 523, punctures the filter hole of the filter ring cylinder 2, so that the filter residue in the filter hole flows to one side of the annular cavity 63 to avoid falling into the shell cover 4, which is beneficial to improve the purity of the gas in the shell cover 4 and improve the safety of the exhaust gas discharged by the exhaust pump 56. At the same time, it is beneficial to maintain the high-efficiency filtering function of the filter ring cylinder 2; when the puncturing nail 524 does not cooperate with the filter hole of the filter ring cylinder 2, the puncturing nail 524 cooperates with the spring 523 to be compressed into the sliding groove 522.

[0035] In the specific implementation, the exhaust pump 56 is started, and the sodium hydroxide solution is introduced into the tube cavity of the shaft tube 33 through the liquid inlet pipe 36, and the mist steam nozzle 34 performs high-concentration atomization spraying, and the hydrogen sulfide gas during the underground construction period of the coal mine is introduced into the air inlet pipe 11. When the hydrogen sulfide gas passes through the flow-displacing fan 31, the flow-displacing fan 31 is driven to rotate, and the flow-displacing fan 31 drives the shaft rod 32, the gear ring 366, the shaft tube 33, the diffusion cone ring 35 and the guide screw blade 37 to rotate, wherein the shaft tube 33 drives the mist steam nozzle 34 to rotate circumferentially, and the liquid vapor of the high-concentration atomization spray is The gear ring 3 66 drives the gear ring 2 65 and the drive fan 3 64 to rotate, and the drive fan 3 64 performs a suction effect on the return airway 612, so that the gas at the concave cone area of ​​the double concave cone ring 611 flows back to the upper end of the inner part of the drum shell 61. The gas includes untreated hydrogen sulfide gas and liquid vapor with a gravity lower than that of the drive fan 3 64, which causes the suction force generated at the return air port, thereby fully purifying the sulfur-containing gas during the underground construction period of the coal mine. When the hydrogen sulfide gas passes through the drive fan 2 62, it carries The driven flow fan 2 62 rotates, and the rotation direction of the driven flow fan 62 is set opposite to the rotation direction of the driven flow fan 31, so that the hydrogen sulfide-containing body inside the drum shell 61 is fully mixed with the liquid vapor of the high-concentration atomized injection, wherein the drum shell 61 drives the scraper bar 1 67 and the scraper bar 2 68 to scrape and clean the inner wall of the filter ring cylinder 2 and the inner wall of the shell 1 respectively, wherein the gas processed inside the drum shell 61 enters the filter ring cylinder 2 through the lower end of the annular cavity 63, and is filtered and purified again by the filter ring cylinder 2, wherein the motor 54 controls the gear 5 5 rotates, the gear 55 drives the gear ring 1 53 to rotate, and the gear ring 1 53 drives the hole cleaning nail roller 52 to rotate circumferentially. At the same time, the hole cleaning nail roller 52 rotates along the cylinder surface of the filter ring cylinder 2, and the piercing nails 524 on the hole cleaning nail roller 52 pierce the filter holes of the filter ring cylinder 2 from the outside to the inside, so that the filter residue on the filter ring cylinder 2 falls into the annular cavity 63, which is beneficial to the purity of the gas in the shell cover 4 and makes the gas discharged by the exhaust pump 56 higher in purity. Among them, the shaft tube 33 drives the guide screw blade 37 to discharge the filter residue in the shell body 1.

[0036] The above description is only a preferred specific implementation manner of the invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydrogen sulfide gas treatment system for underground coal mine construction period, comprising a shell (1), wherein the upper and lower ends of the shell (1) are respectively connected to an air inlet pipe (11) and a discharge pipe (12), wherein: The shell (1) is provided with a purification mechanism (3) and a flow guide mechanism (6) of coaxial structure, the flow guide mechanism (6) being located outside the purification mechanism (3), the side wall of the shell (1) being provided with a filter ring cylinder (2), the side wall of the shell (1) being provided with a shell cover (4) surrounding the outside of the filter ring cylinder (2), the shell cover (4) being provided with a hole cleaning mechanism (5) for processing the filter holes of the filter ring cylinder (2), and the outer shell wall of the shell cover (4) being provided with an exhaust pump (56) for sucking gas from the inner wall of the shell cover (4); The purification mechanism (3) comprises a flow-displacing fan (31) rotatably mounted in a tube cavity of an air inlet pipe (11); a shaft (32) extending into the upper end of a shell (1) is fixed at the center of the flow-displacing fan (31); a shaft tube (33) located in the shell (1) is fixed at the lower end of the shaft tube (32); the lower end of the shaft tube (33) extends into a discharge pipe (12); a liquid inlet pipe (36) for introducing a sodium hydroxide solution is rotatably connected to the lower end of the tube cavity of the shaft tube (33); and a plurality of mist spray pipes (34) connected to the tube cavity of the shaft tube (33) are arranged on the tube wall of the shaft tube (33); The flow guiding mechanism (6) comprises a rotating drum shell (61), the upper end of the rotating drum shell (61) is located below the first flow displacing fan (31), the upper end of the rotating drum shell (61) is rotatably connected to the inner tube cavity of the air inlet pipe (11), the second flow displacing fan (62) sleeved on the outside of the shaft (32) is fixed to the inner shell opening of the upper end of the rotating drum shell (61), the rotating drum shell (61) and the housing (1) form an annular cavity (63) covering the filter ring cylinder (2), and the inner shell of the rotating drum shell (61) is At least one group of double concave cone rings (611) is installed on the wall, and mist spray pipes (34) connected to the tube cavity of the shaft tube (33) are respectively arranged above and below the double concave cone rings (611). A shrinking ring opening is formed between the central opening of the double concave cone ring (611) and the shaft tube (33), and a diffusion cone ring (35) is sleeved on the outer wall of the shaft tube (33) below the shrinking ring opening. The gas inside the rotating drum shell (61) enters the ring cavity (63) through the lower cavity opening of the ring cavity (63); The concave conical surface of the double concave conical ring (611) is provided with a return air port (6111), and the drum shell (61) is provided with a return air duct (612) connected to the return air port (6111). A flow-displacing fan three (64) is rotatably mounted on the upper end of the return air duct (612), and a gear ring two (65) is mounted on the outer side of the flow-displacing fan three (64), and the gear ring two (65) is meshingly connected with a gear ring three (66) coaxially mounted with the shaft rod (32).

2. A coal mine underground construction period hydrogen sulfide gas treatment system according to claim 1, characterized in that: The return air port (6111) is covered with a filter screen (6112).

3. A coal mine underground construction period hydrogen sulfide gas treatment system according to claim 1, characterized in that: The outer wall of the drum shell (61) is provided with a scraper strip (67) located in the annular cavity (63), the scraper strip (67) being in contact with the inner wall of the filter ring drum (2), and the lower end of the scraper strip (67) is provided with a scraper strip (68) in contact with the inner lower end wall of the shell body (1).

4. A coal mine underground construction period hydrogen sulfide gas treatment system according to claim 1, characterized in that: The conical surface of the diffusion cone ring (35) is provided with jet grooves (351) distributed circumferentially.

5. A coal mine underground construction period hydrogen sulfide gas treatment system according to claim 1, characterized in that: The outer tube wall at the lower end of the shaft tube (33) is provided with a material guiding screw blade (37) located in the material discharge pipe (12).

6. A coal mine underground construction period hydrogen sulfide gas treatment system according to claim 1, characterized in that: The hole cleaning mechanism (5) comprises a rotating ring frame (51) and a motor (54); the rotating ring frame (51) is rotatably mounted on the housing (1); a hole cleaning nail roller (52) that rolls around the filter ring cylinder (2) is rotatably mounted on the inner side of the rotating ring frame (51); a gear ring (53) is mounted on the outer side of the rotating ring frame (51); the motor (54) is mounted on the housing (4); and a gear (55) that meshes with the gear ring (53) is mounted on the output end of the motor (54).

7. A hydrogen sulfide gas treatment system for underground coal mine construction according to claim 6, characterized in that: The hole cleaning nail roller (52) comprises a roller body (521), a roller surface of the roller body (521) is provided with a plurality of radial sliding grooves (522), a puncturing nail (524) slides in the sliding groove (522), and the puncturing nail (524) is connected to the sliding groove (522) via a spring (523).

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