CN218766534U - Underground coal mine corrosion environment simulation device - Google Patents
Underground coal mine corrosion environment simulation device Download PDFInfo
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- CN218766534U CN218766534U CN202120928258.3U CN202120928258U CN218766534U CN 218766534 U CN218766534 U CN 218766534U CN 202120928258 U CN202120928258 U CN 202120928258U CN 218766534 U CN218766534 U CN 218766534U
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Abstract
The utility model discloses a colliery is corrosion environment analogue means in pit, including circulation tank and the dry and wet alternative simulation subassembly of setting in circulation tank, circulation tank's internally mounted has the support frame, dry and wet alternative simulation subassembly is including installing the base on the support frame, rotationally install the rotation piece on the base, and fixed mounting is at the support piece on the base, a plurality of year pieces are evenly installed along the circumferencial direction that rotates all around to rotate the piece, a trompil has all been seted up on every year piece, the trompil upper system is equipped with the ribbon, support piece sets up in one side of rotating, support piece's inside is provided with the pipe, the play water end of pipe passes support piece and extends to the top of rotating, the utility model provides a colliery is corrosion environment analogue means in pit can carry out reasonable effectual evaluation to the corruption condition of steel member in the pit, is convenient for guide colliery in pit to combine the corrosion protection work of mining equipment.
Description
Technical Field
The utility model relates to a material corrosion test technical field, concretely relates to colliery is corrosion environment analogue means in pit.
Background
At present, the existing coal mining mainly adopts an underground mining mode, the mining environment is dark and moist, the water quality and components of a mine are complex, most of structures used for controlling the mine pressure of a coal face under the coal mine are steel components, the corrosion phenomenon of the underground mine environment where the structures are located is very serious, and the functions of equipment are invalid due to the high-speed corrosion of equipment parts, so that the effective operation, the safety and the reliability and the production efficiency of the equipment are influenced, and the personal safety and the safety production of underground workers are more seriously influenced. At present, although various anti-corrosion measures for a coal mine are numerous, the existing anti-corrosion measures are mostly obtained through experience summary, and a device for reasonably and effectively evaluating the corrosion condition of an underground steel member of the coal mine is lacked at the present stage, so that the corrosion protection work of underground fully-mechanized mining equipment of the coal mine is lacked in theoretical guidance, and the follow-up corrosion protection work of mining equipment and the steel member is not facilitated.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a colliery is corrosion environment analogue means in pit in order to solve the problem that above-mentioned exists.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a colliery is corrosive environment analogue means in pit, is in including circulation tank and setting the wet and dry in turn simulation subassembly in the circulation tank, circulation tank's internally mounted has the support frame, wet and dry in turn simulation subassembly is including installing base on the support frame is rotationally installed rotate piece on the base, and fixed mounting be in support piece on the base, the edge all around of rotating the piece a plurality of year pieces are evenly installed to the circumferencial direction of rotating the piece, every a trompil has all been seted up on the year piece, be equipped with the ribbon on the trompil, support piece sets up one side of rotating the piece, support piece's inside is provided with the pipe, the play water end of pipe passes support piece extends to the top of rotating the piece.
Furthermore, the wet-dry alternation simulation assembly further comprises a motor arranged outside the circulating water tank, the rotating piece is of a roughly circular structure, a transmission is fixedly mounted on the side wall of the rotating piece, and the motor is in transmission connection with the transmission.
Furthermore, the wet-dry alternation simulation assembly further comprises a water pump arranged in the circulating water tank, the water pump is arranged below the supporting piece, a sucker is arranged at the bottom of the water pump, and the guide pipe is connected with the water pump.
Furthermore, a heater is installed on the inner side wall of the circulating water tank, the heater is located below the support frame, and the support frame is made of stainless steel.
Further, the underground coal mine corrosion environment simulation device further comprises a suspension assembly, and the suspension assembly is arranged inside the circulating water tank.
Further, the hanging assembly comprises a hanging piece display rack, a detachable sucking disc arranged at the bottom of the hanging piece display rack and a fixing rope tied on the hanging piece display rack, and the hanging piece display rack is located below the supporting frame.
Furthermore, the underground coal mine corrosion environment simulation device further comprises a filling water tank and an automatic water injection assembly, wherein the filling water tank is arranged on one side of the circulating water tank, the automatic water injection assembly is arranged between the circulating water tank and the filling water tank, and the circulating water tank is communicated with the filling water tank.
Further, the automatic water injection assembly comprises a water injection pipe, one end of the water injection pipe is arranged in the water injection tank and communicated with the water injection tank, and the other end of the water injection pipe is arranged in the circulating water tank and communicated with the circulating water tank.
Further, the wet-dry alternation simulation assembly is arranged close to the water injection pipe.
Further, install buoyancy liquid level inductor on the water injection pipe, buoyancy liquid level inductor sets up keep away from in the circulating water tank one side of heater.
The beneficial effects of the utility model are that:
the utility model provides a colliery is corrosion environment analogue means in pit, it evenly is provided with a plurality of year pieces to do wet around of the rotation piece of simulation subassembly in turn, install the lacing film on the year piece, there is colliery mine water sample in the circulating water case, one side of rotating the piece is provided with support piece, be provided with the pipe in the support piece, the play water end setting of pipe is in the top of rotating the piece, when rotating the piece and rotating, the pipe play water in the support piece erodees the lacing film on rotating the piece, thereby make colliery corrosion environment analogue means in pit simulate out colliery steel member operating mode in the pit come to develop the dry-wet corrosion evaluation test in turn to the lacing film, thereby can disturb the mine water sample in the circulating water case and go into rivers when the pipe goes out water simultaneously, make colliery corrosion environment analogue means in pit can simulate out colliery steel member operating mode in the pit and come to develop the metal lacing film and disturb the corrosion evaluation test that soaks entirely, thereby carry out reasonable effectual evaluation to the corrosion condition of colliery steel member in the pit, be convenient for the colliery to guide the corrosion protection work of mining equipment in the pit.
Drawings
The present invention will be further described with reference to the accompanying drawings and examples.
FIG. 1 is a schematic structural view of the underground corrosion environment simulator of the coal mine of the present invention;
FIG. 2 is a schematic structural diagram of an automatic water injection assembly in the underground coal mine corrosion environment simulation device shown in FIG. 1;
FIG. 3 is a schematic structural diagram of a wet-dry alternation simulation assembly in the corrosion environment simulation device under the coal mine shown in FIG. 1;
FIG. 4 is a left side view of the wet and dry alternation simulation assembly shown in FIG. 3 (with the motor, water pump and transmission omitted);
FIG. 5 is a top view of a portion of the wet/dry alternation simulation module shown in FIG. 3 (with the motor, water pump and transmission omitted);
FIG. 6 is a schematic diagram of a slide in the wet-dry alternation simulation module shown in FIG. 4;
FIG. 7 is a schematic structural diagram of a suspension assembly in the underground coal mine corrosion environment simulation device shown in FIG. 1.
In the figure: 100. a corrosion environment simulation device for an underground coal mine comprises a circulating water tank, 11, a heater, 12, a support frame, 2, a filling water tank, 3, an automatic water injection assembly, 31, a water injection pipe, 32, a buoyancy liquid level sensor, 4, a dry-wet alternative simulation assembly, 41, a base, 42, a rotating piece, 421, a transmission, 422, a carrying piece, 4221, an opening, 423, a binding belt, 43, a supporting piece, 431, a conduit, 44, a motor, 45, a water pump, 451, a suction cup, 5, a suspension assembly, 51, a hanging piece display rack, 52, a detachable suction cup, 53, a fixed rope, 6 and a hanging piece.
Detailed Description
The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.
As shown in fig. 1 to 7, the utility model provides a colliery is corrosion environment analogue means 100 in pit for simulate colliery corrosion environment and carry out the corrosion evaluation experiment to being in colliery for the steel member in pit, colliery is corrosion environment analogue means 100 in pit includes circulating water tank 1, the filling water tank 2 of setting in circulating water tank 1 one side, the automatic water injection subassembly 3 of setting between circulating water tank 1 and filling water tank 2, the dry and wet alternative simulation subassembly 4 and the subassembly 5 that hangs of setting in circulating water tank 1, set up the motor 6 at circulating water tank 1, and hang and establish at dry and wet alternative simulation subassembly 4 and hang the lacing film 6 on subassembly 5.
As shown in fig. 1, a heater 11 is installed on the inner side wall of the circulating water tank 1, the heater 11 can keep the temperature of the mine water in the circulating water tank 1 constant, a support frame 12 is also installed in the circulating water tank 1, the dry-wet alternation simulation component 4 is arranged on the support frame 12, the suspension component 5 is arranged below the support frame 12, and the circulating water tank 1 is communicated with the filling water tank 2 on one side of the circulating water tank 1; in this embodiment, the supporting frame 12 is made of stainless steel.
As shown in fig. 1 and 2, the automatic water injection assembly 3 includes a water injection pipe 31, one end of the water injection pipe 31 is disposed in the water injection tank 2 and is communicated with the water injection tank 2, the other end of the water injection pipe 31 is disposed in the water circulation tank 1 and is communicated with the water circulation tank 1, a buoyancy liquid level sensor 32 is mounted on the water injection pipe 31 disposed in the water circulation tank 1, the buoyancy liquid level sensor 32 is disposed on one side of the water circulation tank 1 away from the heater 11, when the water level in the water circulation tank 1 is lowered along with the heating of the heater 11, the buoyancy liquid level sensor 32 senses the lowering of the water level, and the water in the water injection tank 2 enters the water circulation tank 1 through the water injection pipe 31 to keep the water level in the water circulation tank 1 unchanged.
As shown in fig. 1, 3, 4, 5 and 6, the wet and dry alternation simulation assembly 4 is mounted on the support frame 12, the wet and dry alternation simulation assembly 4 is disposed near the water injection pipe 321, the wet and dry alternation simulation assembly 4 includes a base 41 disposed on the support frame 12, a rotating member 42 rotatably mounted on the base 41, and a supporting member 43 fixedly mounted on the base 41, the rotating member 42 is substantially circular, a speed changer 421 is fixedly mounted on a side wall of the rotating member 42, a plurality of objective plates 422 are uniformly mounted around the rotating member 42 along a circumferential direction of the rotating member 42, each objective plate 422 is provided with an opening 4221, the opening 4221 is distributed at a central position of an edge of the objective plate 422, two straps 423 are disposed on the objective plate 422, the two straps 423 are disposed at two sides of the objective plate 422 through the openings 4221, and the hanger plate 6 is disposed between the two objective plates 422 through the two straps 423; in this embodiment, the number of the specimen slides 422 is eight, the number of the bands 423 is sixteen, and the diameter of the opening 4221 is 3mm.
As shown in fig. 1, 3, 4 and 5, the wet and dry alternation simulation assembly 4 further includes a supporting member 43 fixedly mounted on the base 41, a motor 44 disposed outside the circulation water tank 1, and a water pump 45 disposed at the bottom of the circulation water tank 1, the supporting member 43 is disposed at one side of the rotating member 42, the supporting member 43 is substantially in an "L" shape, a cavity is opened inside the supporting member 43, a conduit 431 is disposed in the cavity of the supporting member 43, a water inlet end of the conduit 431 is connected to the water pump 45 at the bottom of the circulation water tank 1, a water outlet end of the conduit 431 extends above the rotating member 42 through the supporting member 43, an output shaft of the motor 44 is in transmission connection with the transmission 421 on the rotating member 42, the water pump 45 is disposed below the supporting member 43, a suction cup 45 is mounted at the bottom of the water pump 45, and the water pump 45 is fixed to the bottom wall of the circulation water tank 1 by suction cup 451.
As shown in fig. 1 and 7, the hanging unit 5 includes a hanging piece display shelf 51, a detachable suction cup 52 installed at the bottom of the hanging piece display shelf 51, and a fixing rope 53 tied on the hanging piece display shelf 51, the hanging piece display shelf 51 is suction-fixed on the bottom wall of the circulation tank 1 by the detachable suction cup 52 and the hanging piece display shelf 51 is positioned below the supporting frame 12, the hanging piece display shelf 51 is provided near the side of the circulation tank 1 where the heater 11 is installed, and the hanging piece 6 is tied on the hanging piece display shelf 51 by the fixing rope 53.
The utility model provides a colliery is corrosion environment analogue means 100 in pit, test that can go on include colliery steel member wet and dry corrosion evaluation test in turn, colliery steel member rivers disturbance full immersion corrosion evaluation test and the alternating temperature full immersion corrosion evaluation test in pit to the corrosion mechanism is confirmed through the corrosion evaluation method to lacing film 6.
The evaluation test for dry-wet alternate corrosion of the coal mine underground steel member comprises the following steps:
s1, connecting a coal mine underground corrosion environment simulation device 100, and checking the water tightness of the coal mine underground corrosion environment simulation device 100 and the integrity of each component;
s2, numbering, cleaning, drying, weighing and recording eight hanging pieces 6 to be evaluated according to test standards, sequentially tying the hanging pieces 6 between the object carrying pieces 422 by using a tying band 423 to penetrate through the open holes 4221 on the object carrying pieces 422, cutting off redundant tying bands 423, and reducing the influence of the tying bands 423 on the object carrying pieces 422;
s3, pouring a mine water sample under a coal mine into the circulating water tank 1, wherein the liquid level of the circulating water tank 1 is controlled on the lower surface of the support frame 12;
s4, setting the temperature of the heater 11 and keeping the heater 11 below the support frame 12;
s5, adjusting the height of a buoyancy liquid level sensor 32 in the automatic water injection assembly 3 to the lower surface of the support frame 12, adding distilled water into the filling water tank 2, and when the liquid level in the circulating water tank 1 is lower than the position of the buoyancy liquid level sensor 32, identifying by the buoyancy liquid level sensor 32 and injecting water into the circulating water tank 1 through a water injection pipe 31 to keep the liquid level in the circulating water tank 1 stable, and simultaneously keeping the height of the heater 11 below the liquid level all the time to prevent dry burning;
s6, the water pump 45 is started, so that the conduit 431 in the support piece 43 discharges water at a constant speed;
s7, turning on the motor 44, adjusting the speed of the speed changer 421, enabling the rotating piece 42 on the wet-dry alternation simulation assembly 4 to rotate at a fixed speed, and enabling the hanging piece 6 to be evaluated to be in uniform contact with water flow;
s8, setting a test period, and arranging the regular inspection of the running condition of the device by a tester in the test period to ensure the safe running of the test;
s9, hanging a safety warning board in front of the underground coal mine corrosion environment simulation device 100, and setting a warning line to ensure safety;
s10, repeating the steps S1 to S9, respectively adjusting the temperature, the rotating speed and the test period set in the steps S4, S7 and S8 according to the test requirements, and performing dry-wet alternate corrosion evaluation tests on the coal mine underground steel member under the working conditions of different temperatures, rotating speeds and test periods;
s11, after the test is finished, taking down the hanging sheet 6, and performing development analysis on the hanging sheet 6 for evaluating the dry-wet alternate corrosion of the underground coal mine steel member by a corrosion evaluation method.
The coal mine underground steel member water flow disturbance full immersion corrosion evaluation test comprises the following steps:
m1, connecting the underground coal mine corrosion environment simulation device 100, and checking the water tightness of the underground coal mine corrosion environment simulation device 100 and the integrity of each component;
m2, numbering the nine hanging pieces 6 to be evaluated according to a test standard, cleaning, drying, weighing, recording, sequentially tying the hanging pieces on a hanging piece display rack 51 by using a fixed rope 53, and ensuring that no contact exists between every two hanging pieces 6 and between the hanging pieces 6 and the bottom of the circulating water tank 1;
m3, pouring a mine water sample in the underground coal mine into the circulating water tank 1, wherein the liquid level of the water sample in the circulating water tank 1 is controlled at the support frame 12;
m4, setting the temperature of the heater 11 and keeping the height of the heater 11 below the support frame 12;
m5, adjusting the height of a buoyancy liquid level sensor 32 in the automatic water injection assembly 3 to the lower surface of the support frame 12, adding distilled water into the filling water tank 2, and when the liquid level in the circulating water tank 1 is lower than the position of the buoyancy liquid level sensor 32, identifying and injecting water into the circulating water tank 1 through a water injection pipe 31 by the buoyancy liquid level sensor 32, so that the liquid level in the circulating water tank 1 is kept stable, and meanwhile, the height of the heater 11 is always below the liquid level, so that dry burning is prevented;
m6, turning on the water pump 45 to enable the conduit 431 in the support 43 to discharge water at a constant speed;
m7, turning on a motor 44, and adjusting the speed of a speed changer 421 to enable a rotating member 42 on the wet-dry alternation simulation assembly 4 to rotate at a fixed speed, so as to ensure that the disturbance rate of water flow in the circulating water tank 1 is stable, and ensure that a hanging piece 6 to be evaluated is always below the liquid level;
m8, setting a test period, and arranging a tester to periodically inspect the running condition of the device in the test period to ensure the safe running of the test;
m9, suspending a safety warning board in front of the underground coal mine corrosive environment simulation device 100, and setting a warning line to ensure safety;
m10, repeating the steps M1-M9, respectively adjusting the temperature, the rotating speed and the test period set in the steps M4, M7 and M8 according to the test requirements, and performing the water flow disturbance full-immersion corrosion evaluation test on the underground coal mine steel member under different temperatures, rotating speeds and test periods;
m11, after the test is finished, taking down the hanging piece 6, and performing development analysis on the hanging piece 6 by using a corrosion evaluation method to evaluate the full immersion corrosion of the underground steel member water flow disturbance of the coal mine;
the temperature-changing full-immersion corrosion evaluation test comprises the following steps:
n1, connecting the underground coal mine corrosion environment simulation device 100, and checking the water tightness of the underground coal mine corrosion environment simulation device 100 and the integrity of each component;
n2, numbering nine hanging pieces 6 to be evaluated according to a test standard, cleaning, drying, weighing and recording, and sequentially tying the hanging pieces 6 on a hanging piece display rack 51 by using a fixing rope 53 to ensure that no contact exists between every two hanging pieces 6 and between the hanging pieces 6 and the bottom of the circulating water tank 1;
n3, pouring a mine water sample in the coal mine into the circulating water tank 1, and controlling the liquid level of the circulating water tank 1 at the support frame 12;
n4, setting the temperature of the heater 11 and keeping the heater 11 below the support frame 12;
n5, adjusting the height of a buoyancy liquid level sensor 32 in the automatic water injection assembly 3 to the lower surface of the support frame 12, adding distilled water into the filling water tank 2, and when the liquid level in the circulating water tank 1 is lower than the position of the buoyancy liquid level sensor 32, identifying and injecting water into the circulating water tank 1 through a water injection pipe 31 by the buoyancy liquid level sensor 32, so that the liquid level in the circulating water tank 1 is kept stable, and meanwhile, the height of the heater 11 is always below the liquid level, so that dry burning is prevented;
n6, setting a test period, and arranging the tester to periodically inspect the running condition of the device in the test period to ensure the safe running of the test;
n7, suspending a safety warning board in front of the underground coal mine corrosive environment simulation device 100, and setting a warning line to ensure safety;
n8, repeating the steps N1-N7, respectively adjusting the temperature and the test period set in the steps N4 and N6 according to the test requirements, and performing temperature-varying full immersion corrosion evaluation tests at different temperatures and under the test periods;
and N9, after the test period is finished, taking down the hanging piece 6, and performing corrosion evaluation analysis on the temperature-variable full-immersion corrosion evaluation hanging piece 6 by a corrosion evaluation method.
The corrosion evaluation method of the hanging piece 6 comprises the following steps:
(1) Analyzing the water quality of mine water in the underground coal mine, knowing the water quality condition and researching and analyzing the corrosion mechanism of the material in a targeted manner;
(2) Taking out the hanging piece 6 which reaches the test period, observing and recording the surface corrosion appearance, immediately washing with clear water and wiping with filter paper, drying the wiped hanging piece 6 at low temperature and taking a picture for recording;
(3) Analyzing the components and the appearance of a corrosion product (rust skin) of the dried hanging piece 6 by using test equipment such as SEM, EDS, XRD and the like, and researching and analyzing the corrosion mechanism of the steel member;
(4) Cleaning the hanging sheet 6, cleaning corrosion products on the hanging sheet 6, putting the hanging sheet 6 into absolute ethyl alcohol for dehydration treatment, taking out the hanging sheet 6, putting the hanging sheet on filter paper, drying the hanging sheet by cold air, wrapping the hanging sheet 6 by the filter paper, storing the wrapping paper in a drier, and weighing the wrapping paper after the wrapping paper is placed for 12 hours;
(5) Observing the hanging piece 6, if obvious pitting corrosion pits exist on the surface of the hanging piece 6, measuring and recording the pitting depth;
(6) Calculating the uniform corrosion rate by utilizing the weight loss before and after the test of the hanging piece 6, and calculating the pitting corrosion rate by utilizing the maximum pitting depth so as to know the corrosion condition of the hanging piece 6;
(7) And analyzing the components and the morphology of the hanging piece 6 after the corrosion product (corrosion scale) is removed by using test equipment such as SEM, EDS, XRD and the like, and researching and analyzing the corrosion mechanism of the steel member.
The utility model provides a colliery is corrosion environment analogue means 100 in pit, dry and wet is evenly provided with a plurality of year pieces 422 around the rotation piece 42 of simulation subassembly 4 in turn, install lacing film 6 on the year piece 422, there is colliery mine well water sample in the circulating water tank 1, one side of rotating piece 42 is provided with support piece 43, be provided with pipe 431 in the support piece 43, the play water end setting of pipe 431 is in the top that rotates piece 42, when rotating piece 42 rotates, pipe 431 in the support piece 43 goes out the water and erodees hanging piece 6 on rotating piece 42, thereby make colliery corrosion environment analogue means 100 in pit simulate out colliery well steel member operating mode come to carry out dry and wet corrosion evaluation test in turn to hanging piece 6, thereby can disturb the mine water sample in circulating water tank 1 and go into rivers when pipe 431 goes out simultaneously, make colliery well mine corrosion environment analogue means 100 can simulate out colliery well mine well steel member operating mode and come to carry out the full immersion corrosion evaluation test of rivers disturbance to the hanging piece, thereby carry out reasonable effectual evaluation to the corrosion condition of colliery steel member in pit, so as to guide colliery the protection corrosion work in pit of mining equipment in pit.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the scope of the invention. The technical scope of the present invention is not limited to the content of the description, and the technical scope must be determined according to the scope of the claims.
Claims (10)
1. A colliery is corrosion environment analogue means in pit which characterized in that: be in including circulation tank and setting wet simulation subassembly in the circulation tank futilely in turn, circulation tank's internally mounted has the support frame, wet simulation subassembly in turn is including installing futilely base on the support frame is rotationally installed rotate piece on the base, and fixed mounting is in support piece on the base, the edge all around of rotating the piece a plurality of slide carriers are evenly installed to the circumferencial direction of rotating the piece, every a trompil has all been seted up on the slide carrier, be equipped with the ribbon on the trompil, support piece sets up the one side of rotating the piece, support piece's inside is provided with the pipe, the play water end of pipe passes support piece extends to the top of rotating the piece.
2. The underground coal mine corrosion environment simulation device according to claim 1, wherein: the dry-wet alternation simulation assembly further comprises a motor arranged outside the circulating water tank, the rotating piece is of a roughly circular structure, a speed changer is fixedly mounted on the side wall of the rotating piece, and the motor is in transmission connection with the speed changer.
3. The underground coal mine corrosion environment simulation device according to claim 1, characterized in that: the wet-dry alternation simulation assembly further comprises a water pump arranged inside the circulating water tank, the water pump is arranged below the supporting piece, a sucker is arranged at the bottom of the water pump, and the guide pipe is connected with the water pump.
4. The underground coal mine corrosion environment simulation device according to claim 1, characterized in that: the heater is arranged on the inner side wall of the circulating water tank and located below the supporting frame, and the supporting frame is made of stainless steel.
5. The underground coal mine corrosion environment simulation device according to claim 1, characterized in that: the underground coal mine corrosion environment simulation device further comprises a suspension assembly, and the suspension assembly is arranged inside the circulating water tank.
6. The underground coal mine corrosion environment simulation device according to claim 5, characterized in that: the hanging assembly comprises a hanging piece display rack, a detachable sucking disc arranged at the bottom of the hanging piece display rack and a fixing rope arranged on the hanging piece display rack, and the hanging piece display rack is positioned below the supporting frame.
7. The underground coal mine corrosion environment simulation device according to claim 4, wherein: the underground coal mine corrosion environment simulation device further comprises a filling water tank and an automatic water injection assembly, wherein the filling water tank is arranged on one side of the circulating water tank, the automatic water injection assembly is arranged between the circulating water tank and the filling water tank, and the circulating water tank is communicated with the filling water tank.
8. The underground coal mine corrosion environment simulation device according to claim 7, characterized in that: the automatic water injection assembly comprises a water injection pipe, one end of the water injection pipe is arranged in the water injection tank and communicated with the water injection tank, and the other end of the water injection pipe is arranged in the circulating water tank and communicated with the circulating water tank.
9. The underground coal mine corrosion environment simulation device according to claim 8, characterized in that: the dry-wet alternation simulation assembly is arranged close to the water injection pipe.
10. The underground coal mine corrosion environment simulation device according to claim 8, characterized in that: install buoyancy liquid level inductor on the water injection pipe, buoyancy liquid level inductor sets up keep away from in the circulating water tank one side of heater.
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| CN202120928258.3U CN218766534U (en) | 2021-04-30 | 2021-04-30 | Underground coal mine corrosion environment simulation device |
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| CN113188986A (en) * | 2021-04-30 | 2021-07-30 | 兖州煤业股份有限公司 | Underground coal mine corrosion environment simulation device |
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| CN113188986A (en) * | 2021-04-30 | 2021-07-30 | 兖州煤业股份有限公司 | Underground coal mine corrosion environment simulation device |
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