CN212504494U - Short-range water treatment device for underground coal mine - Google Patents
Short-range water treatment device for underground coal mine Download PDFInfo
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- CN212504494U CN212504494U CN202022078987.2U CN202022078987U CN212504494U CN 212504494 U CN212504494 U CN 212504494U CN 202022078987 U CN202022078987 U CN 202022078987U CN 212504494 U CN212504494 U CN 212504494U
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Abstract
The utility model belongs to the technical field of water treatment, in particular to a short-range water treatment device under a coal mine; aims to solve the defects of the underground water treatment by the underground water treatment equipment; the specific scheme comprises a pretreatment system, a biological reaction system, a ceramic membrane water treatment system and a mud-water separation device which are connected in sequence; the ceramic membrane water treatment system is connected with a clean water tank through a second pipeline; the second pipeline is connected with a suction pump, an online flowmeter and a pressure transmitter, and the pipeline connecting the biological reaction system and the ceramic membrane water treatment system is provided with an online pH meter, an online hardness meter and an online turbidity meter; the utility model discloses the device is established in the pit, utilizes abandonment tunnel, reduces the occupation of land, need not frequently clear storehouse, reduces the wearing and tearing of water pump and pipeline, and the flow is shorter, go out water quality of water good, handles the back, and the reuse water is reused in the pit on the spot, and the remainder elevator pump is arranged to the ground outside, has practiced thrift the promotion energy consumption greatly.
Description
Technical Field
The utility model belongs to the technical field of the water treatment, specifically be a colliery is short range water treatment facilities in pit.
Background
Because the underground water of the coal mine has complex components and high impurity content, the occupied area of a water treatment station under the coal mine is large, and each link for treating water is complex, the underground water of the coal mine is usually built on the ground, and the treated underground water of the coal mine is preferentially reused underground. However, the underground coal mine water treatment station is built on the ground, and other problems are caused, such as a large amount of electric energy is consumed for lifting the mine drainage wastewater, and the abrasion to lifting equipment and pipelines is serious. If the water treatment equipment is arranged underground, the characteristics of low underground clearance and small section need to be considered, the whole occupied area of the underground coal mine water treatment station is required to be small, the links are few, and the flow is short, but the existing water treatment equipment used on the underground coal mine is not suitable for the underground coal mine.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes the defects of the prior art and provides a short-range water treatment device in a coal mine. Aims to solve the defects existing in the process that the direct water treatment equipment on the well is arranged under the well.
In order to achieve the above purpose, the present invention is achieved by the following technical solutions.
A coal mine underground short-range water treatment device comprises a pretreatment system, a biological reaction system, a ceramic membrane water treatment system and a mud-water separation device which are sequentially connected; the pretreatment system is connected with an underground water sump through a first pipeline, and a wastewater lifting pump is arranged on the first pipeline; the first pipeline is connected with a plurality of dosing devices; the ceramic membrane water treatment system is connected with a clean water tank through a second pipeline; the second pipeline is connected with a suction pump, an online flowmeter and a pressure transmitter, and the biological reaction system is connected with a backwashing aeration fan through a pipeline; the first pipeline is provided with an online hardness meter and an online turbidity meter; the biological reaction system is provided with a filler blocking device; an online pH meter, an online hardness meter and an online turbidity meter are arranged on a pipeline connected with the biological reaction system and the ceramic membrane water treatment system.
Further, an online pH meter and an online flow meter are arranged on the first pipeline.
Furthermore, the clean water tank is connected with a dosing device and is connected with a backwashing device of the ceramic membrane water treatment system through a pipeline.
Furthermore, the backwashing device is connected with a dosing device.
Further, mud-water separation device includes the sludge impoundment, the sludge impoundment is connected with the mud pressure filter through the fourth pipeline, be provided with mud pressure filter pump and pressure transmitter on the fourth pipeline.
Further, the sludge pond is provided with a liquid level meter.
Furthermore, the biological reaction system is an MBBR biological system and is used for treating BOD and NH in the mine water3-N and petroleum based impurities.
Further, the ceramic membrane water treatment system is an immersed ceramic membrane system.
The utility model discloses produced beneficial effect does for prior art.
The utility model relates to a short distance colliery underground water treatment facilities suitable for in pit mainly includes "pretreatment systems, MBBR biochemical system, submergence formula ceramic membrane system", utilizes MBBR biochemical system and submergence formula ceramic membrane system to replace "thoughtlessly congeal + deposit + filter + active carbon filtration + ultrafiltration" in the traditional technology, compares saying, the utility model discloses a flow is shorter, go out that the water quality is good, the working costs is low, the management is more convenient, has better popularization prospect. Establish in the pit, utilize the abandonment tunnel, reduce the occupation of land, need not frequently clear storehouse, reduce the wearing and tearing of water pump and pipeline, the back is handled, and the reuse water is used in the pit on the spot, and the rest part elevator pump is arranged to ground external row, has practiced thrift the promotion energy consumption greatly.
Drawings
FIG. 1 is a connection structure diagram of a short distance coal mine underground water treatment device suitable for underground;
in the figure, 1 is a wastewater lift pump, 2 is a pretreatment system, 3 is a biological reaction system, 4 is a ceramic membrane water treatment system, 5 is a suction pump, 6 is a clean water tank, 8 is a backwashing aeration fan, 9 is a sludge tank, 10 is a sludge filter press pump, 11 is a sludge filter press, 12 is a first dosing device, 13 is a second dosing device, 14 is a third dosing device, 15 is a fourth dosing device, 16 is a sixth dosing device, 17 is a fifth dosing device, 18 is an online pH meter, 19 is an online flowmeter, 20 is an online hardness meter, 21 is an online turbidity meter, 22 is a liquid level meter, 23 is a pressure transmitter, 24 is an MBBR interception device, 25 is a first pipeline, 26 is a third pipeline, 27 is a second pipeline, and 28 is a fourth pipeline.
Detailed Description
In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve more clearly understand, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.
As shown in figure 1, the coal mine underground short-distance water treatment device comprises a pretreatment system 2, a biological reaction system 3, a ceramic membrane water treatment system 4 and a mud-water separation device which are connected in sequence.
The pretreatment system 2 is arranged by using underground abandoned or idle roadways in a form of a horizontal sedimentation tank. The pretreatment system 2 serves two primary purposes: pre-precipitation is carried out, and the impact load of suspended matters in incoming water is reduced; secondly, if the hardness needs to be removed, fluoride can be removed by adding corresponding agents in a pre-precipitation section, and the process is flexible to adjust. The pretreatment system 2 is connected with an underground water sump through a first pipeline 25, and a wastewater lifting pump 1 is arranged on the first pipeline 25; be connected with four charge devices on the first pipeline 25: a first dosing device 12, a second dosing device 13, a third dosing device 14 and a fourth dosing device 15; the first pipeline 25 is also connected with an online pH meter 18, an online flowmeter 19, an online hardness meter 20 and an online turbidity meter 21.
The biological reaction system 3 is an MBBR biological system and is used for treating BOD and NH in the mine water3-N and petroleum based impurities. Can be removed by biological treatment, especially by biological treatment of NH3N, good removal effect of the dissolved oil.
The utility model discloses in introducing the colliery water treatment for the first time with the technology that removes ammonia nitrogen in domestic sewage, replace traditional aeration filter and breakpoint chlorination ammonia nitrogen removal's technology, simple process, convenient operation. The system mainly comprises a biochemical pool, a suspended filler, an aeration system, an interception screen and the like.
a. Can be set into a round or rectangular reaction tank according to the actual underground condition, and the retention time T = 60-90 min
b. The suspension filler is mainly prepared from polyethylene, polypropylene and modified materials thereof, polyurethane foam and the like, and the density of the suspension filler is slightly less than that of water (0.95-0.98 g/cm)3) Specification: phi 25X 10mm, specific surface area > 500m2/m3The filling rate is generally 30 to 35%.
c. Commonly used effluent-retaining nets include two types: a vertically fixed stainless steel flat net and a horizontally placed wedge-shaped stainless steel wire net. The graticule mesh bottom sets up air jet device or agitator, avoids packing and debris to gather on the graticule mesh.
d. The roots blower is adopted for aeration, a perforated aeration pipe is matched, the concentration of dissolved oxygen is usually within the range of 2-6 mg/L, and fluidization of suspended fillers is realized through unevenness and distribution of the aeration pipe.
The biological reaction system 3 is connected with the ceramic membrane water treatment system 4 through a third pipeline 26, and the third pipeline 26 is connected with an online pH meter 18, an online hardness meter 20 and an online turbidity meter 21. An MBBR intercepting device 24 is also arranged in the biological reaction system 3. The biological reaction system 3 is connected with a backwashing aeration fan 8 through a pipeline.
The ceramic membrane water treatment system 4 is an immersed ceramic membrane system; the immersed ceramic membrane system is used for replacing the traditional technology of 'coagulation + precipitation + filtration + ultrafiltration', the flow is shorter, and the effect is better.
The plate surface of the flat ceramic membrane is densely distributed with micropores, the permeability is different according to the difference of the molecular diameters of the permeated substances within a certain membrane aperture range, the pressure difference at two sides of the membrane is used as a driving force, the membrane is used as a filtering medium, and under the action of a certain pressure, when feed liquid flows through the surface of the membrane, only water, inorganic salt and small molecular substances are allowed to permeate through the membrane, and macromolecular substances such as suspended matters, colloids, microorganisms and the like in the water are prevented from passing through the membrane.
The suggested flat membrane flux is 80-100L/m2H, distance from the upper surface of the membrane unit to the water surface (lowest water level), and a protection liquid level of 500mm is required at the lowest; the distance between the center of the aeration pipe and the center of the lower part of the component is 150-200 mm; the distance between the bottom surface of the aeration pipe and the bottom surface of the membrane tank is 200 mm; the distance between the membrane components and the surrounding tank wall is 800-1000 mm, and the distance between the membrane components is not less than 300 mm.
The ceramic membrane water treatment system 4 is connected with a clean water tank 6 through a second pipeline 27; the second pipeline 27 is connected with the suction pump 5, the online flowmeter 19 and the pressure transmitter 23, the clean water tank 6 is connected with the fifth dosing device 17, the clean water tank 6 is connected with the backwashing device of the ceramic membrane water treatment system 4 through a pipeline, and the pipeline is connected with the sixth dosing device 16.
The mud-water separation device comprises a sludge tank 9, the sludge tank 9 is connected with a sludge filter press 11 through a fourth pipeline 28, and a sludge filter press pump 10 and a pressure transmitter 23 are arranged on the fourth pipeline 28. The sludge tank 9 is provided with a level gauge 22.
The embodiment utilizes MBBR biochemical system and submergence formula ceramic membrane system to replace "thoughtlessly congeal + deposit + filter + active carbon filtration + ultrafiltration" among the traditional handicraft, compares, the utility model discloses a flow is shorter, go out that water quality of water is good, the working costs is low, the management is more convenient, has better popularization prospect. Establish in the pit, utilize the abandonment tunnel, reduce the occupation of land, need not frequently clear storehouse, reduce the wearing and tearing of water pump and pipeline, the back is handled, and the reuse water is used in the pit on the spot, and the rest part elevator pump is arranged to ground external row, has practiced thrift the promotion energy consumption greatly.
The above description is for further details of the present invention with reference to specific preferred embodiments, and it should not be understood that the embodiments of the present invention are limited thereto, and it will be apparent to those skilled in the art that the present invention can be implemented in a plurality of simple deductions or substitutions without departing from the scope of the present invention, and all such alterations and substitutions should be considered as belonging to the present invention, which is defined by the appended claims.
Claims (8)
1. A coal mine underground short-range water treatment device is characterized by comprising a pretreatment system (2), a biological reaction system (3), a ceramic membrane water treatment system (4) and a mud-water separation device which are sequentially connected; the pretreatment system (2) is connected with an underground sump through a first pipeline, and a wastewater lifting pump (1) is arranged on the first pipeline; the first pipeline is connected with a plurality of dosing devices; the ceramic membrane water treatment system (4) is connected with a clean water tank (6) through a second pipeline; the second pipeline is connected with a suction pump (5), an online flowmeter (19) and a pressure transmitter (23), and the biological reaction system (3) is connected with a backwashing aeration fan (8) through a pipeline; the first pipeline is provided with an online hardness meter (20) and an online turbidity meter (21); the biological reaction system (3) is provided with a filler stopping device; an online pH meter (18), an online hardness meter (20) and an online turbidity meter (21) are arranged on a pipeline connected with the biological reaction system (3) and the ceramic membrane water treatment system (4).
2. The coal mine underground short-range water treatment device according to claim 1, wherein an online pH meter (18) and an online flow meter (19) are arranged on the first pipeline.
3. The coal mine underground short-range water treatment device according to claim 1, characterized in that the clean water tank (6) is connected with a chemical dosing device, and the clean water tank (6) is connected with a backwashing device of the ceramic membrane water treatment system (4) through a pipeline.
4. The coal mine underground short-distance water treatment device according to claim 3, wherein the backwashing device is connected with a dosing device.
5. The coal mine underground short-range water treatment device according to claim 1, wherein the sludge-water separation device comprises a sludge tank (9), the sludge tank (9) is connected with a sludge filter press (11) through a fourth pipeline, and a sludge filter press pump (10) and a pressure transmitter (23) are arranged on the fourth pipeline.
6. The coal mine underground short-range water treatment device according to claim 5, characterized in that the sludge tank (9) is provided with a liquid level meter (22).
7. The coal mine underground short-range water treatment device according to claim 1, characterized in that the biological reaction system (3) is an MBBR biological system for treating BOD and NH in mine water3-N and petroleum based impurities.
8. The coal mine underground short-range water treatment device according to claim 1, wherein the ceramic membrane water treatment system (4) is an immersed ceramic membrane system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022078987.2U CN212504494U (en) | 2020-09-21 | 2020-09-21 | Short-range water treatment device for underground coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022078987.2U CN212504494U (en) | 2020-09-21 | 2020-09-21 | Short-range water treatment device for underground coal mine |
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| Publication Number | Publication Date |
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| CN212504494U true CN212504494U (en) | 2021-02-09 |
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| CN202022078987.2U Active CN212504494U (en) | 2020-09-21 | 2020-09-21 | Short-range water treatment device for underground coal mine |
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