CN211367280U

CN211367280U - Underground coal mine sewage treatment and utilization system

Info

Publication number: CN211367280U
Application number: CN201922267543.0U
Authority: CN
Inventors: 李回贵; 王建; 秦章; 刘良贵
Original assignee: Guizhou University of Engineering Science
Current assignee: Guizhou University of Engineering Science
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-08-28
Anticipated expiration: 2029-12-17

Abstract

A system for treating and utilizing sewage in a coal mine comprises a sedimentation tank, a reaction tank, a clean water tank and a disinfection tank which are sequentially arranged from left to right, wherein the sewage in the coal mine is connected with the top of the sedimentation tank through a sewage pipe, a first water through hole is arranged between the upper part of the left side of the sedimentation tank and the upper part of the right side of the reaction tank, a second water through hole is arranged between the upper part of the left side of the reaction tank and the upper part of the right side of the clean water tank, a third water through hole is arranged between the upper part of the left side of the clean water tank and the upper part of the right side of the disinfection tank, a first sludge self-sucking pump is arranged at the bottom of the sedimentation tank, a second; the bottom of the disinfection tank is provided with a second submersible pump and a third submersible pump. The utility model discloses the principle science, reasonable in design, the implementation of being convenient for, water treatment is effectual, can not only improve the living environment on the colliery, can also make water resource cyclic utilization.

Description

Underground coal mine sewage treatment and utilization system

Technical Field

The utility model belongs to the technical field of colliery underground water treatment, concretely relates to colliery is sewage treatment in pit utilizes system.

Background

Various kinds of sewage are generated every day under a coal mine, the sewage not only erodes the living environment of people, but also harms the health of people, and if the sewage is left in the underground, a large amount of water resources are wasted, and the environment is seriously polluted. Moreover, when the environment is destroyed, the ecological balance is disordered, and the ecological balance is difficult to recover in no more than ten years, tens of years or even hundreds of years, and sometimes can not be recovered. Therefore, it is necessary to perform sewage treatment.

The sewage treatment has the following advantages:

1. the water quality is improved, and the pollution degree of water is greatly reduced;

2. reasonably utilizing water resources;

3. the ecological environment is improved;

4. the recycling of water is promoted;

at present, the sewage in the underground coal mine is generally stored in a water sump and collected, and then is extracted to the ground and discharged to a nearby river through simple treatment, so that more water resources are wasted, the river can be polluted, a sewage treatment station must be built on the coal mine from the aspects of environmental protection and economy, the living environment on the coal mine can be improved, and the water resources can be recycled.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the weak point among the prior art, provide a colliery sewage treatment utilizes system in pit of scientific environmental protection, make full use of water resource, classification utilization.

In order to solve the technical problem, the utility model adopts the following technical scheme: a coal mine underground sewage treatment and utilization system, which comprises a sedimentation tank and a reaction tank which are arranged from left to right in sequence, the system comprises a clean water tank and a disinfection tank, underground coal mine sewage is connected with the top of a sedimentation tank through a sewage pipe, a first water passing hole is formed between the upper part of the left side of the sedimentation tank and the upper part of the right side of a reaction tank, a second water passing hole is formed between the upper part of the left side of the reaction tank and the upper part of the right side of the clean water tank, a third water passing hole is formed between the upper part of the left side of the clean water tank and the upper part of the right side of the disinfection tank, a first sludge self-priming pump is arranged at the bottom of the sedimentation tank, an outlet of the first sludge self-priming pump is connected with a first precipitate pumping pipe extending upwards out of the sedimentation tank, a second sludge self-priming pump is arranged at the bottom of the reaction tank, an outlet of the second sludge self-priming pump is connected with a second precipitate pumping pipe extending upwards; the bottom of the disinfection pool is provided with a second submersible pump and a third submersible pump, the outlet of the second submersible pump is connected with an underground dedusting and cooling water pumping and discharging pipe which upwards extends out of the disinfection pool, and the outlet of the third submersible pump is connected with a domestic water pumping and discharging pipe which upwards extends out of the disinfection pool.

The first water passing hole is provided with a first fine filter screen, the second water passing hole is provided with a second fine filter screen, and the third water passing hole is provided with a third fine filter screen.

The inside left side portion of sedimentation tank is equipped with the first screen cloth that separates the sedimentation tank for first left cavity and first right cavity along the vertical direction, is equipped with first ultrasonic wave on the first screen cloth and shakes the board, and first mud self priming pump is located the bottom of first right cavity.

The front side or the rear side of sedimentation tank are equipped with the spare pond side by side, be equipped with the fourth between the left side upper portion of spare pond and the right side upper portion of reaction tank and cross the water hole, fourth cross water hole department is equipped with the thin filter screen of fourth, the inside left side of spare pond is equipped with the second screen cloth that separates the spare pond for the left cavity of second and the right cavity of second along the vertical direction, be equipped with the second ultrasonic wave on the second screen cloth and shake the board, be equipped with third mud self priming pump in the bottom of the right cavity of second in the spare pond, the exit linkage of third mud self priming pump has the third precipitate row's of upwards stretching out the spare pond pipe.

The bottom of reaction tank, sedimentation tank and reserve pond is thick conical structure down, and first mud self priming pump, second mud self priming pump and third mud self priming pump set up the conical structure lower part at reaction tank, sedimentation tank and reserve pond respectively.

The outlet of sewage pipe is parallelly connected with first water injection pipe and second water injection pipe, and the delivery port of first water injection pipe is connected with the first right cavity top of sedimentation tank, and the delivery port of second water injection pipe is connected with the second right cavity top of reserve pond, is equipped with the second valve on being equipped with first valve and the second water injection pipe on the first water injection pipe.

A first water flow dispersing conical barrel is arranged under the water outlet of the first water injection pipe in the sedimentation tank, and a second water flow dispersing conical barrel is arranged under the water outlet of the second water injection pipe in the standby tank.

Adopt above-mentioned technical scheme, the utility model discloses a concrete processing utilizes the process to be: the first valve is opened, the second valve is closed, the sewage in the coal mine is pumped out from the underground water sump through the sewage pipe by the high-lift pump and enters the sedimentation tank through the first water injection pipe, and suspended matters in the water are removed by utilizing the natural sedimentation or coagulating sedimentation effect of the water. The first screen is uniformly arranged in the sedimentation tank, and small suspended matters which cannot be precipitated are filtered. In order to make the precipitation treatment effect better, some coagulant can be added into the precipitation tank. The settled sludge is pumped out of the sedimentation tank by a first sludge self-priming pump and then treated. The attached sludge on the first screen can be cleaned by a first ultrasonic vibration plate. The sewage which is treated by sedimentation in the sedimentation tank enters a reaction tank after passing through a first fine filter screen, in the reaction tank, harmful and toxic substances in the sewage are decomposed and neutralized by using chemicals, finally, clear water is obtained by coagulating sedimentation, the precipitated sludge is pumped out of the reaction tank by a second sludge self-priming pump and then treated, a second screen is used for filtering and removing some tiny suspended matters which cannot be precipitated, the clear water flows into a clear water tank through the second fine filter screen, and the purified clear water is pumped out by a first submersible pump and used as some living water (such as flushing toilets, coal washing, mechanical equipment cleaning and the like) with low requirements on water quality. The incomplete water in the clean water tank flows into the disinfection tank through the third fine filter screen, the clean water is disinfected in the disinfection tank, and the water is pumped out by the second submersible pump to be used for underground dust removal and temperature reduction and some working water; pumped by a third submersible pump to be used as greening water, bathing water and other domestic water (such as fire water and the like).

Open first ultrasonic wave at interval time and shake adnexed mud on the board clearance first screen cloth, when needs carry out thoroughly clearance to first screen cloth, can open the second valve, first valve is closed, and sewage flows into in the reserve tank, and the structure in the reserve tank is the same with the sedimentation tank, and concrete sedimentation process is no longer repeated. And the water enters the reaction tank through a fourth fine filter screen after the precipitation operation of the standby tank.

The bottom in reaction tank, sedimentation tank and reserve pond is thick conical structure thin down, can make the mud of sediment gather down around mud self priming pump along the inner wall of conical structure like this, makes things convenient for the suction operation of mud self priming pump.

The first water flow dispersion conical cylinder and the second water flow dispersion conical cylinder have the function of reducing the influence on the internal standing and precipitation when sewage flows into the sedimentation tank and the standby tank, and ensure the good operation of the precipitation operation.

To sum up, the utility model discloses the principle science, reasonable in design, the implementation of being convenient for, water treatment is effectual, can not only improve the living environment on the colliery, can also make water resource cyclic utilization.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Detailed Description

As shown in figure 1, the utility model relates to a coal mine underground sewage treatment and utilization system, which comprises a sedimentation tank 1, a reaction tank 2, a clean water tank 3 and a disinfection tank 4 which are arranged from left to right in sequence, coal mine underground sewage is connected with the top of the sedimentation tank 1 through a sewage pipe 5, a first water through hole is arranged between the left upper part of the sedimentation tank 1 and the right upper part of the reaction tank 2, a second water through hole is arranged between the left upper part of the reaction tank 2 and the right upper part of the clean water tank 3, a third water through hole is arranged between the left upper part of the clean water tank 3 and the right upper part of the disinfection tank 4, a first sludge self-sucking pump 6 is arranged at the bottom of the sedimentation tank 1, a first sediment suction and discharge pipe 7 which extends upwards out of the sedimentation tank 1 is connected with an outlet of the first sludge self-sucking pump 6, a second sludge self-sucking pump 8 is arranged at the bottom of the reaction tank 2, a second sediment suction and discharge pipe 9 which extends upwards, the bottom of the clean water tank 3 is provided with a first submersible pump 10, and the outlet of the first submersible pump 10 is connected with a clean water pumping and discharging pipe 11 which extends out of the clean water tank 3 upwards; the bottom of the disinfection tank 4 is provided with a second submersible pump 12 and a third submersible pump 13, the outlet of the second submersible pump 12 is connected with an underground dedusting and cooling water pumping and discharging pipe 14 which upwards extends out of the disinfection tank 4, and the outlet of the third submersible pump 13 is connected with a domestic water pumping and discharging pipe 15 which upwards extends out of the disinfection tank 4.

A first fine filter screen 16 is arranged at the first water passing hole, a second fine filter screen 17 is arranged at the second water passing hole, and a third fine filter screen 18 is arranged at the third water passing hole.

The inside left side portion of sedimentation tank 1 is equipped with along the vertical direction and separates sedimentation tank 1 for first left cavity and the first screen cloth 19 of first right cavity, is equipped with first ultrasonic wave on the first screen cloth 19 and shakes board 20, and first mud self priming pump 6 is located the bottom of first right cavity.

Front side or rear side of sedimentation tank 1 are equipped with spare pond 21 side by side, it crosses the water hole to be equipped with the fourth between the left side upper portion of spare pond 21 and the right side upper portion of reaction tank 2, fourth cross water hole department is equipped with the thin filter screen of fourth, the inside left side portion of spare pond 21 is equipped with the second screen cloth 23 that separates spare pond 21 for the left cavity of second and the right cavity of second along the vertical direction, be equipped with the second ultrasonic wave board 24 that shakes on the second screen cloth 23, be equipped with third mud self priming pump 25 in the bottom of the right cavity of second in spare pond 21, the exit linkage of third mud self priming pump 25 has the third precipitate suction pipe 26 that upwards stretches out spare pond 21.

The bottom of reaction tank 2, sedimentation tank 1 and reserve pond 21 is thick conical structure 27 thin down, and first mud self priming pump 6, second mud self priming pump 8 and third mud self priming pump 25 set up the conical structure 27 lower part at reaction tank 2, sedimentation tank 1 and reserve pond 21 respectively.

The outlet of the sewage pipe 5 is connected in parallel with a first water injection pipe 28 and a second water injection pipe 29, the water outlet of the first water injection pipe 28 is connected with the top of the first right chamber of the sedimentation tank 1, the water outlet of the second water injection pipe 29 is connected with the top of the second right chamber of the standby tank 21, and the first water injection pipe 28 is provided with a first valve 30 and the second water injection pipe 29 is provided with a second valve 31.

A first water flow dispersing conical cylinder 32 is arranged under the water outlet of the first water injection pipe 28 in the sedimentation tank 1, and a second water flow dispersing conical cylinder 33 is arranged under the water outlet of the second water injection pipe 29 in the standby tank 21.

The utility model discloses a concrete processing and utilizing process does: the first valve 30 is opened, the second valve 31 is closed, the sewage in the coal mine is pumped out from the underground water sump through the sewage pipe 5 by a high-lift pump and enters the sedimentation tank 1 through the first water injection pipe 28, and suspended matters in the water are removed by utilizing the natural sedimentation or coagulating sedimentation effect of the water. The first screen 19 is arranged uniformly in the sedimentation tank 1 and filters out some non-sedimentable fine suspended matters. In order to make the sedimentation treatment more effective, some coagulant can be added into the sedimentation tank 1. The precipitated sludge is pumped out of the sedimentation tank 1 by a first sludge self-priming pump 6 and then treated. The sludge attached to the first screen 19 can be cleaned by the first ultrasonic vibrating plate 20. The sewage which is treated by sedimentation in the sedimentation tank 1 passes through a first fine filter screen 16 and then enters a reaction tank 2, in the reaction tank 2, harmful and toxic substances in the sewage are decomposed and neutralized by chemicals, finally, clear water is obtained by coagulating sedimentation, the precipitated sludge is pumped out of the reaction tank 2 by a second sludge self-sucking pump 8 and then is treated, a second screen 23 filters and removes some tiny suspended matters which cannot be precipitated, the clear water flows into a clear water tank 3 through a second fine filter screen 17, and the purified clear water is pumped out by a first submersible pump 10 and is used as some living water (such as flushing toilets, coal washing, mechanical equipment cleaning and the like) with low requirements on water quality. The incomplete water in the clean water tank 3 flows into the disinfection tank 4 through the third fine filter screen 18, the clean water is disinfected in the disinfection tank 4, and the water is pumped out by the second submersible pump 12 to be used for underground dust removal and temperature reduction and some working water; is pumped by the third submersible pump 13 for use as greening water, bathing water and some other domestic water (such as fire water).

Open first ultrasonic wave at interval time and shake adnexed mud on the board clearance first screen cloth 19, when needs carry out thorough clearance to first screen cloth 19, can open second valve 31, first valve 30 is closed, and sewage flows into in the reserve pond 21, and the structure in the reserve pond 21 is the same with in the sedimentation tank 1, and concrete sedimentation process is no longer repeated. After the sedimentation operation in the standby tank 21, the water enters the reaction tank 2 through a fourth fine filter screen.

The bottom of reaction tank 2, sedimentation tank 1 and reserve pond 21 is thick-end-up's conical structure 27, can make the mud of sediment gather down around mud self priming pump along conical structure 27's inner wall like this, makes things convenient for the suction operation of mud self priming pump. There is a gap between the lower edge of the first screen mesh 19 and the conical structure 27 in the sedimentation tank 1, and there is also a gap between the lower edge of the second screen mesh 23 and the conical structure 27 in the spare tank 21, so that the sediments at the bottom of the first left chamber and the third left chamber can conveniently move downwards along the conical structure 27 and pass through the gap to the suction sides of the first sludge self-priming pump 6 and the third sludge self-priming pump 25.

The first water flow dispersing conical cylinder 32 and the second water flow dispersing conical cylinder 33 reduce the influence of the sewage on the internal standing and sedimentation when the sewage flows into the sedimentation tank 1 and the standby tank 21, and ensure the good operation of the sedimentation operation.

The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.

Claims

1. A coal mine underground sewage treatment and utilization system is characterized in that: comprises a sedimentation tank and a reaction tank which are arranged from left to right in sequence, the system comprises a clean water tank and a disinfection tank, underground coal mine sewage is connected with the top of a sedimentation tank through a sewage pipe, a first water passing hole is formed between the upper part of the left side of the sedimentation tank and the upper part of the right side of a reaction tank, a second water passing hole is formed between the upper part of the left side of the reaction tank and the upper part of the right side of the clean water tank, a third water passing hole is formed between the upper part of the left side of the clean water tank and the upper part of the right side of the disinfection tank, a first sludge self-priming pump is arranged at the bottom of the sedimentation tank, an outlet of the first sludge self-priming pump is connected with a first precipitate pumping pipe extending upwards out of the sedimentation tank, a second sludge self-priming pump is arranged at the bottom of the reaction tank, an outlet of the second sludge self-priming pump is connected with a second precipitate pumping pipe extending upwards; the bottom of the disinfection pool is provided with a second submersible pump and a third submersible pump, the outlet of the second submersible pump is connected with an underground dedusting and cooling water pumping and discharging pipe which upwards extends out of the disinfection pool, and the outlet of the third submersible pump is connected with a domestic water pumping and discharging pipe which upwards extends out of the disinfection pool.

2. The underground coal mine sewage treatment and utilization system according to claim 1, which is characterized in that: the first water passing hole is provided with a first fine filter screen, the second water passing hole is provided with a second fine filter screen, and the third water passing hole is provided with a third fine filter screen.

3. The underground coal mine sewage treatment and utilization system according to claim 1 or 2, which is characterized in that: the inside left side portion of sedimentation tank is equipped with the first screen cloth that separates the sedimentation tank for first left cavity and first right cavity along the vertical direction, is equipped with first ultrasonic wave on the first screen cloth and shakes the board, and first mud self priming pump is located the bottom of first right cavity.

4. The underground coal mine sewage treatment and utilization system according to claim 3, wherein: the front side or the rear side of sedimentation tank are equipped with the spare pond side by side, be equipped with the fourth between the left side upper portion of spare pond and the right side upper portion of reaction tank and cross the water hole, fourth cross water hole department is equipped with the thin filter screen of fourth, the inside left side of spare pond is equipped with the second screen cloth that separates the spare pond for the left cavity of second and the right cavity of second along the vertical direction, be equipped with the second ultrasonic wave on the second screen cloth and shake the board, be equipped with third mud self priming pump in the bottom of the right cavity of second in the spare pond, the exit linkage of third mud self priming pump has the third precipitate row's of upwards stretching out the spare pond pipe.

5. The underground coal mine sewage treatment and utilization system according to claim 4, wherein: the bottom of reaction tank, sedimentation tank and reserve pond is thick conical structure down, and first mud self priming pump, second mud self priming pump and third mud self priming pump set up the conical structure lower part at reaction tank, sedimentation tank and reserve pond respectively.

6. The underground coal mine sewage treatment and utilization system according to claim 4, wherein: the outlet of sewage pipe is parallelly connected with first water injection pipe and second water injection pipe, and the delivery port of first water injection pipe is connected with the first right cavity top of sedimentation tank, and the delivery port of second water injection pipe is connected with the second right cavity top of reserve pond, is equipped with the second valve on being equipped with first valve and the second water injection pipe on the first water injection pipe.

7. The underground coal mine sewage treatment and utilization system according to claim 6, wherein: a first water flow dispersing conical barrel is arranged under the water outlet of the first water injection pipe in the sedimentation tank, and a second water flow dispersing conical barrel is arranged under the water outlet of the second water injection pipe in the standby tank.