CN103432803A - Sewage circulating treating system and machine for coal mine - Google Patents
Sewage circulating treating system and machine for coal mine Download PDFInfo
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- CN103432803A CN103432803A CN2013103427235A CN201310342723A CN103432803A CN 103432803 A CN103432803 A CN 103432803A CN 2013103427235 A CN2013103427235 A CN 2013103427235A CN 201310342723 A CN201310342723 A CN 201310342723A CN 103432803 A CN103432803 A CN 103432803A
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Abstract
The invention provides a sewage circular treating system and a machine for coal mine. The sewage circular treating system is used for treating sewage of a mechanical wet-type dust removing system for the coal mine and comprises a water pump which is used for a first water filtering tank and is also used for conveying purified water filtered by the first water filtering tank to the mechanical wet-type dust removing system for the coal mine; the first water filtering tank comprises a sewage inlet, a filtering screen and a purified water draining port; the sewage inlet is communicated with the sewage draining port of the mechanical wet-type dust removing system for the coal mine; the filtering screen is arranged in the first water filtering tank; the purified water draining port is communicated with the water pump. According to the sewage circular treating system, sewage which is originally drained to the operating working face by the mechanical wet-type dust removing system for the coal mine is collected and filtered by the sewage circular treating system, and then the filtered purified water is pumped to the mechanical wet-type dust removing system for the coal mine for recycling through the water pump, so that the damage to the working face due to the sewage can be prevented, so as to increase the operation efficiency, filter out impurities such as sludge in the sewage and reduce the pollution to the environment.
Description
Technical field
The present invention relates to the effluent cycle process field, machinery for the colliery that relates in particular to a kind of sewage circulating treating system and there is this sewage circulating treating system.
Background technology
At present, colliery is very extensive with the application of mechanical wet dedusting system, and under colliery, under the more complete condition of pumping equipment, operation has obtained vast colliery client's approval application.Yet the pumping equipment of China's most of colliery scope of operation is poor, colliery in running, produces a large amount of dedusting sewages with mechanical wet dedusting system, has a strong impact on the operating efficiency of coal mine equipment, mainly contains following deficiency:
1. colliery at operation working face, causes working face to form water damage with the sewage discharge of mechanical wet dedusting system, has a strong impact on the working face operating efficiency;
2. contain the mud such as coal stone, slag in dedusting sewage, after the discharge mine working face, be difficult to carry out filtration treatment, cause environmental pollution.
Therefore, design a kind of sewage that colliery can be discharged with mechanical wet dedusting system and purified and recycle, thereby the sewage circulating treating system of raising working face operating efficiency, environmental contamination reduction becomes, be badly in need of the technical problem solved.
Summary of the invention
In order to overcome above-mentioned defect and the deficiency of prior art, the object of the present invention is to provide a kind of sewage circulating treating system that improves working face operating efficiency, environmental contamination reduction.
This sewage circulating treating system, it is the sewage disposal with mechanical wet dedusting system for colliery, described sewage circulating treating system comprises for the first water filtering tank and for being delivered to the water pump of described colliery with mechanical wet dedusting system by the water purification after described the first water filtering tank filtration, wherein, described the first water filtering tank comprises the sewage inlet be connected with mechanical wet dedusting system sewage effluent with described colliery, the water purification discharge outlet that is arranged at the screen pack in described the first water filtering tank and is connected with described water pump, sewage enters in described the first water filtering tank and after described screen pack filters and is entered in described water pump by described water purification discharge outlet by described sewage inlet, by described water pump, clarified water pump is delivered to described colliery with in mechanical wet dedusting system.
Further, described screen pack comprises coarse filtration net and smart screen pack, and described coarse filtration net is fixed in described the first water filtering tank, and will be separated into foul water tank and coarse filtration water tank in described the first water filtering tank, and described smart screen pack is arranged in described coarse filtration water tank.
Further, described smart screen pack is the cylindrical shape screen pack, and the one end inserts in described water purification discharge outlet; Or described smart screen pack is disc-shaped structure, it is arranged at described water purification discharge outlet place.
Further, the bottom of described the first water filtering tank offers sewage draining exit and for controlling the sewage draining exit controlling organization of described sewage draining exit folding.
Further, described sewage draining exit comprises the first sewage draining exit and the second sewage draining exit, and described the first sewage draining exit is opened in described foul water tank bottom, and described the second sewage draining exit is opened in described coarse filtration water tank bottom.
Further, described sewage circulating treating system also comprises the first bracing frame for supporting described the first water filtering tank and is arranged at the first impurity transport vehicle of described the first water filtering tank below.
Further, described sewage circulating treating system also comprises the first base, and the two ends of described the first bracing frame are connected with bottom and described first base of described the first water filtering tank respectively.
Further, on described the first water filtering tank, draining valve is set.
Further, also be provided with the moisturizing interface for to described the first water filtering tank, carrying out moisturizing on described the first water filtering tank, and for observing the water-level observation window of described the first water filtering tank middle water level situation.
Further, described the first water filtering tank comprises the angle regulator of regulating its angle, described angle regulator comprises adjusting screw, rotating shaft and regulates support body, described adjusting screw is arranged on the sidewall of described the first water filtering tank, described rotating shaft is fixed on described the first bracing frame, described the first water filtering tank is rotating to be arranged on described rotating shaft, and described adjusting support body one end matches with described adjusting screw, and the other end is fixed on described the first bracing frame.
Further, described sewage circulating treating system also comprises second water filtering tank identical with described the first water filtering tank structure, the sewage inlet of described the second water filtering tank is connected with mechanical wet dedusting system sewage effluent with described colliery, the water purification discharge outlet of described the second water filtering tank is connected with described water pump, be respectively arranged with the first sewage valve between the described sewage inlet of described colliery with the sewage effluent of mechanical wet dedusting system and described sewage inlet and described the second water filtering tank, the second sewage valve, be respectively arranged with the first water purifying valve between described water pump and described water purification discharge outlet and the described water purification discharge outlet of described the second water filtering tank, the second water purifying valve.
The present invention also provides a kind of machinery for colliery that is provided with described sewage circulating treating system.
Sewage circulating treating system of the present invention can be collected the sewage originally come on operation working face with mechanical wet dedusting system by colliery, filtered, again the water purification after filtering is recycled with mechanical wet dedusting system to colliery by water pump pumps, so both can prevent the infringement of sewage to operation working face, thereby raising operating efficiency, can, by the impurity filterings such as mud in sewage, reduce the generation of environmental pollution again.
A kind of machinery for colliery that is provided with above-mentioned sewage circulating treating system provided by the invention, because above-mentioned sewage circulating treating system has above-mentioned technique effect, therefore, the colliery that is provided with this sewage circulating treating system also has corresponding technique effect with machinery.
The accompanying drawing explanation
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention the present invention does not form inappropriate limitation of the present invention for explaining.In the accompanying drawings:
Figure 1 shows that the side view of the first water filtering tank of the sewage circulating treating system of the embodiment of the present invention.
Figure 2 shows that the front view of the sewage circulating treating system of the embodiment of the present invention.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment obtained, belong to the scope of protection of the invention.
Please, in conjunction with consulting Fig. 1 and Fig. 2, the embodiment of the present invention provides a kind of sewage circulating treating system, and this sewage circulating treating system is arranged at colliery with in machinery, so that the effluent cycle processing is carried out to mechanical wet dedusting system etc. in colliery.This sewage circulating treating system comprises the first water filtering tank 1 and is delivered to the water pump 9 of colliery with mechanical wet dedusting system for the water purification after being filtered by the first water filtering tank 1, wherein, this first water filtering tank 1 comprises the sewage inlet 11 be connected with mechanical wet dedusting system sewage effluent with this colliery, be arranged at the screen pack 12 in this first water filtering tank 1 and the water purification discharge outlet 13 be connected with this water pump 9, sewage enters in this first water filtering tank 1 and after screen pack 12 filters and is entered in this water pump 9 by this water purification discharge outlet 13 by this sewage inlet 11, by this water pump 9, clarified water pump is delivered to this colliery with in mechanical wet dedusting system.This sewage circulating treating system can be collected the sewage originally come on operation working face with mechanical wet dedusting system by colliery, filtered, again the water purification after filtering is recycled with mechanical wet dedusting system to colliery by water pump pumps, so both can prevent the infringement of sewage to operation working face, thereby improve the operating efficiency of working face, again can be by the impurity filterings such as mud in sewage, the less generation of environmental pollution.
Below the concrete structure of this sewage circulating treating system is described in detail.
This sewage inlet 11 is opened on this first water filtering tank 1, and this sewage inlet 11 is connected with the sewage effluent of mechanical wet dedusting system with this colliery by water pipe.The sewage that discharge with mechanical wet dedusting system in this colliery flows into this first water filtering tank 1 from this sewage inlet 11 by water pipe.
This screen pack 12 comprises coarse filtration net 121 and smart screen pack 122.This coarse filtration net 121 is fixed in this first water filtering tank 1, and will be separated into foul water tank and coarse filtration water tank in this first water filtering tank 1.Enter this foul water tank by sewage inlet 11, after this coarse filtration net 121 filters, enter the coarse filtration water tank.The impurity such as the coal stone that therefore, volume is larger, slag are stopped in this foul water tank by this coarse filtration net 121.
This essence screen pack 122 is arranged in the coarse filtration water tank.This essence screen pack 122 is a cylindrical shape screen pack, and the one end inserts in this water purification discharge outlet 13.This essence screen pack 122 can be filtered the sewage in this coarse filtration water tank, then by this water purification discharge outlet 13, flows in this water pump 9.In addition, the shape of this essence screen pack 122 is not limited only to above-mentioned columnar structured, if sewage can be carried out structure that essence filters all can, for example, this essence screen pack 122 also can be disc-shaped structure, it is arranged at this water purification discharge outlet 13 places.
This water purification discharge outlet 13 is opened in the bottom of this first water filtering tank 1 or the position of sidewall adjacent bottom.This water purification discharge outlet 13 is connected with this water pump 9 by water pipe.
This water pump 9 is delivered to this colliery with in mechanical wet dedusting system for the clarified water pump that this first water filtering tank 1 is discharged, thereby makes the waste water of being discharged with mechanical wet dedusting system by this colliery carry out cycling and reutilization.
In order to improve the efficiency of the impurity such as the interior coal stone of this first water filtering tank 1 of cleaning, slag, mud, the bottom of this first water filtering tank 1 offers sewage draining exit 14 and reaches for controlling the sewage draining exit controlling organization of these sewage draining exit 14 foldings.This sewage draining exit 14 is discharged from this first water filtering tank 1 for remaining in after filtering the impurity such as the interior coal stone of this first water filtering tank 1, slag, mud.In this preferred embodiment, this sewage draining exit 14 comprises the first sewage draining exit 141 and the second sewage draining exit 142.This first sewage draining exit 141 is opened in this foul water tank bottom, for the impurity by foul water tank, discharges.This second sewage draining exit 142 is opened in this coarse filtration water tank bottom, for the impurity by the coarse filtration water tank, discharges.Correspondingly, this sewage draining exit controlling organization comprises the first sewage draining exit controlling organization 151 and the second sewage draining exit controlling organization 152.This first sewage draining exit controlling organization 151 and this second sewage draining exit controlling organization 152 are a rotating handle, with this first sewage draining exit 141 and the second sewage draining exit 142, be connected respectively, by rotating this first sewage draining exit controlling organization 151 and this second sewage draining exit controlling organization 152 can be realized the control to this first sewage draining exit 141 and the second sewage draining exit 142 foldings.In addition, this sewage draining exit controlling organization also can be replaced by other controlling organizations, as electrical control mechanism, hydraulic mechanism etc.
For the ease of impurity such as the coal stone that will be discharged by this sewage draining exit 14, slag, mud, from working face, transport, this sewage circulating treating system also comprises the first base 2, for the first bracing frame 3 that supports this first water filtering tank 1 and the first impurity transport vehicle 4 that is arranged at this first water filtering tank 1 below.The two ends of this first bracing frame 3 are connected with bottom and this first base 2 of this first water filtering tank 1 respectively, so that this first water filtering tank 1 is supported on this first base 2.This first impurity transport vehicle 4 is slidably disposed on this first base 2, and this first impurity transport vehicle 4 is for accommodating the impurity such as the coal stone of discharging from this sewage draining exit 14, slag, mud and being transported to the place of appointment.This first base 2 can be convenient to the walking of this first impurity transport vehicle 4.If the working face condition is (ground is harder, is convenient to the walking of the first impurity transport vehicle 4) better, this first base 2 can omit, and this first bracing frame 3 directly supports on the ground.
In above-mentioned structure, existing sometimes water purification in this first water filtering tank 1 also not flow into fully in water pump 9 just needs the impurity in this first water filtering tank 1 is discharged, at this moment need on this first water filtering tank 1, draining valve 16 be set, after by this draining valve 16, the water purification in this first water filtering tank 1 being discharged, by this sewage draining exit controlling organization, this sewage draining exit 14 is opened again, made impurity in this first water filtering tank 1 etc. enter in this first impurity transport vehicle 4.Like this, can improve the conevying efficiency of impurity.In addition, the water purification used vessel of being discharged by this draining valve 16 stores, and then pours in this first water filtering tank 1, thereby improves the utilization rate of water purification.
In addition, also be provided with the moisturizing interface 17 for to this first water filtering tank 1, carrying out moisturizing on this first water filtering tank 1, when the water purification storage in this first water filtering tank 1 is less, can supplement water purification in this first water filtering tank 1 by this moisturizing interface 17, to meet the need of work of this colliery with mechanical wet dedusting system.
In addition, in order to observe the water level situation in this first water filtering tank 1, on the sidewall of this first water filtering tank 1, also can be provided with water-level observation window 18.
In addition, this sewage circulating treating system is arranged on the ramp with angle of inclination sometimes, at this moment may cause water in this first water filtering tank 1 from wherein overflowing.Now, this first water filtering tank 1 comprises for regulating the angle of this first water filtering tank 1, makes it still can keep the angle regulator of level on ramp.This angle regulator comprises adjusting screw 51, rotating shaft 52 and regulates support body 53.This adjusting screw 51 is arranged on the sidewall of this first water filtering tank 1, and this adjusting screw 51 is for regulating the active force between this adjusting support body 53 and this adjusting screw 51, and then regulates the angle between this first water filtering tank 1 and this first bracing frame 3.This rotating shaft 52 is fixed on this first bracing frame 3, and this first water filtering tank 1 is arranged on this rotating shaft 52 rotationally.These adjusting support body 53 1 ends match with this adjusting screw 51, and the other end is fixed on this first bracing frame 3.When this sewage circulating treating system is on ramp, rotatable this adjusting screw 51, regulate the active force between this adjusting support body 53 and this adjusting screw 51, make this first water filtering tank 1 relative to i.e. this first bracing frame 3 of this adjusting support body 53() rotate, thereby can make this first water filtering tank 1 be adjusted to level, therefore can prevent that the water in this first water filtering tank 1 from overflowing.
This above sewage circulating treating system is for only having a water filtering tank, base, supporting leg, impurity transport case, like this, in the process of this sewage circulating treating system work, can cause because discharging the process such as impurity this sewage circulating treating system can not continuous continual work.Generation for fear of above-mentioned situation, the sewage circulating treating system that the preferred embodiment of the present invention provides also comprises the second water filtering tank 1 ', the second base 2 ', the second bracing frame 3 ', the second impurity transport case 4 ', and this second water filtering tank 1 ', the second base 2 ', the second bracing frame 3 ', the second impurity transport case 4 ' are identical with the structure of aforesaid the first water filtering tank 1, the first base 2, the first bracing frame 3, the first impurity transport vehicle 4, do not repeat them here.
The sewage inlet 11 ' of this second water filtering tank 1 ' is connected with the sewage effluent of mechanical wet dedusting system with this colliery by water pipe, this colliery is connected with this sewage inlet 11 and this sewage inlet 11 ' with the sewage effluent of mechanical wet dedusting system, and this colliery is with between the sewage effluent of mechanical wet dedusting system and this sewage inlet 11 and this sewage inlet 11 ', being respectively arranged with the first sewage valve 19, the second sewage valve 19 '.This water pump 9 is connected with the water purification discharge outlet 13 of this first water filtering tank 1 and the water purification discharge outlet 13 ' of this second water filtering tank 1 ', is respectively arranged with the first water purifying valve 20, the second water purifying valve 20 ' between the water purification discharge outlet 13 of this water pump 9 and this first water filtering tank 1 and the water purification discharge outlet 13 ' of this second water filtering tank 1 '.
When this sewage circulating treating system work, this first sewage valve 19 is opened, this second sewage valve 19 ' to be closed, this colliery flows into this first water filtering tank 1 from this sewage inlet 11 with the sewage in the sewage effluent of mechanical wet dedusting system.Sewage passes through the filtration of this coarse filtration net 121 and this essence screen pack 122 and becomes water purification.Now, this water purification discharge outlet 13 is opened, this water purification discharge outlet 13 ' is closed, the water purification flowed out from this first water filtering tank 1 is pumped to this colliery with in mechanical wet dedusting system by this water pump 9, makes this colliery carry out the dedusting operation with mechanical wet dedusting system utilization water purification after sewage disposal.
In the time need to being discharged the impurity in this first water filtering tank 1, this second sewage valve 19 ' is opened, this first sewage valve 19 is closed, colliery is flowed into this second water filtering tank 1 ' from this sewage inlet 11 ' with the sewage in the sewage effluent of mechanical wet dedusting system.Sewage passes through the filtration of this coarse filtration net 121 ' and this essence screen pack 122 ' and becomes water purification.Now, this water purification discharge outlet 13 is closed, this water purification discharge outlet 13 ' is opened, the water purification flowed out from this second water filtering tank 1 ' is pumped to this colliery with in mechanical wet dedusting system by this water pump 9, makes this colliery carry out the dedusting operation with mechanical wet dedusting system utilization water purification after sewage disposal.Like this, by this first water filtering tank 1 and alternately switching use of this second water filtering tank 1 ', make sewage purification and flow to this colliery and there is continuity by the process in mechanical wet dedusting system, thereby can not affect to this colliery and supply water with mechanical wet dedusting system, improve the operating efficiency of this colliery with mechanical wet dedusting system.
This sewage circulating treating system can be collected the sewage originally come on operation working face with mechanical wet dedusting system by colliery, filtered, again the water purification after filtering is recycled with mechanical wet dedusting system to colliery by water pump pumps, so both can prevent the infringement of sewage to operation working face, thereby improve the operating efficiency of working face, can, by the impurity filterings such as mud in sewage, reduce the generation of environmental pollution again.
The embodiment of the present invention also provides machinery for a kind of colliery, and this colliery is provided with above-mentioned sewage circulating treating system with machinery.
Because above-mentioned sewage circulating treating system has above-mentioned technique effect, therefore, the colliery that is provided with this sewage circulating treating system also should possess corresponding technique effect with machinery, and its specific implementation process is similar to the above embodiments, does not hereby repeat.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (12)
1. a sewage circulating treating system, it is the sewage disposal with mechanical wet dedusting system for colliery, it is characterized in that, described sewage circulating treating system comprises for the first water filtering tank (1) and for being delivered to the water pump (9) of described colliery with mechanical wet dedusting system by the water purification after described the first water filtering tank (1) filtration, wherein, described the first water filtering tank (1) comprises the sewage inlet (11) be connected with mechanical wet dedusting system sewage effluent with described colliery, the water purification discharge outlet (13) that is arranged at the screen pack (12) in described the first water filtering tank (1) and is connected with described water pump (9), sewage enters in described the first water filtering tank (1) and after described screen pack (12) filters and is entered in described water pump (9) by described water purification discharge outlet (13) by described sewage inlet (11), by described water pump (9), clarified water pump is delivered to described colliery with in mechanical wet dedusting system.
2. sewage circulating treating system according to claim 1, it is characterized in that, described screen pack (12) comprises coarse filtration net (121) and smart screen pack (122), described coarse filtration net (121) is fixed in described the first water filtering tank (1), and will being separated into foul water tank and coarse filtration water tank in described the first water filtering tank (1), described smart screen pack (122) is arranged in described coarse filtration water tank.
3. sewage circulating treating system according to claim 2, is characterized in that, described smart screen pack (122) is the cylindrical shape screen pack, and the one end inserts in described water purification discharge outlet (13); Or described smart screen pack (122) is disc-shaped structure, it is arranged at described water purification discharge outlet (13) and locates.
4. sewage circulating treating system according to claim 2, is characterized in that, the bottom of described the first water filtering tank (1) offers sewage draining exit (14) and reaches for controlling the sewage draining exit controlling organization of described sewage draining exit (14) folding.
5. sewage circulating treating system according to claim 4, it is characterized in that, described sewage draining exit (14) comprises the first sewage draining exit (141) and the second sewage draining exit (142), described the first sewage draining exit (141) is opened in described foul water tank bottom, and described the second sewage draining exit (142) is opened in described coarse filtration water tank bottom.
6. sewage circulating treating system according to claim 5, it is characterized in that, described sewage circulating treating system also comprises the first bracing frame (3) for supporting described the first water filtering tank (1) and is arranged at the first impurity transport vehicle (4) of described the first water filtering tank (1) below.
7. sewage circulating treating system according to claim 6, it is characterized in that, described sewage circulating treating system also comprises the first base (2), and the two ends of described the first bracing frame (3) are connected with bottom and described first base (2) of described the first water filtering tank (1) respectively.
8. sewage circulating treating system according to claim 1, is characterized in that, draining valve (16) is set on described the first water filtering tank (1).
9. sewage circulating treating system according to claim 1, it is characterized in that, on described the first water filtering tank (1), also be provided with for carry out the moisturizing interface (17) of moisturizing to described the first water filtering tank (1), and for observing the water-level observation window (18) of described the first water filtering tank (1) middle water level situation.
10. sewage circulating treating system according to claim 6, it is characterized in that, described the first water filtering tank (1) comprises the angle regulator of regulating its angle, described angle regulator comprises adjusting screw (51), rotating shaft (52) and adjusting support body (53), described adjusting screw (51) is arranged on the sidewall of described the first water filtering tank (1), described rotating shaft (52) is fixed on described the first bracing frame (3), described the first water filtering tank (1) is rotating to be arranged on described rotating shaft (52), described adjusting support body (53) one ends match with described adjusting screw (51), the other end is fixed on described the first bracing frame (3).
11. according to the described sewage circulating treating system of any one in claim 1-10, it is characterized in that, described sewage circulating treating system also comprises second water filtering tank (1 ') identical with described the first water filtering tank (1) structure, the sewage inlet (11 ') of described the second water filtering tank (1 ') is connected with mechanical wet dedusting system sewage effluent with described colliery, the water purification discharge outlet (13 ') of described the second water filtering tank (1 ') is connected with described water pump (9), be respectively arranged with the first sewage valve (19) between the described sewage inlet (11 ') of described colliery with the sewage effluent of mechanical wet dedusting system and described sewage inlet (11) and described the second water filtering tank (1 '), the second sewage valve (19 '), be respectively arranged with the first water purifying valve (20) between described water pump (9) and described water purification discharge outlet (13) and described the second described water purification discharge outlet of water filtering tank (1 ') (13 '), the second water purifying valve (20 ').
12. a machinery for colliery is characterized in that described mine equipment is provided with sewage circulating treating system as described as any one in claim 1-11.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310342723.5A CN103432803B (en) | 2013-08-07 | 2013-08-07 | Sewage circulating treating system and coal mine equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310342723.5A CN103432803B (en) | 2013-08-07 | 2013-08-07 | Sewage circulating treating system and coal mine equipment |
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| CN103432803A true CN103432803A (en) | 2013-12-11 |
| CN103432803B CN103432803B (en) | 2016-05-25 |
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| CN201310342723.5A Active CN103432803B (en) | 2013-08-07 | 2013-08-07 | Sewage circulating treating system and coal mine equipment |
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| CN112047517A (en) * | 2020-08-07 | 2020-12-08 | 太原理工大学 | Sewage circulating gas washing and dust removing device and method |
| CN113585144A (en) * | 2021-06-30 | 2021-11-02 | 安徽江田环卫设备股份有限公司 | Conveniently switch watering lorry of cask |
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| Publication number | Publication date |
|---|---|
| CN103432803B (en) | 2016-05-25 |
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