Scale inhibition and concentrated solution excess pressure recycling type underground water purification device

Abstract

The utility model discloses a scale inhibition and concentrated solution residual pressure recycling type underground water purification device. The device comprises an emulsion water distribution pipeline formed by a scale inhibition device, a direct filter membrane, a self-cleaning filter, a precision filter, a security filter, a booster pump A, a reverse osmosis membrane and a desalting water tank which are sequentially connected in series through pipelines, the other outlet of the reverse osmosis membrane is connected in series with a hydraulic turbine device through a pipeline to form a wastewater discharge pipeline; the booster pump A and the hydraulic turbine device are connected through a pipeline to form a branch; the emulsion water distribution pipeline is positioned at the tail end of the desalting water tank and is serially connected with a booster pump B; a special scale inhibition device is additionally arranged at the front end of a direct filter membrane to replace dosing for descaling, and pressure energy of concentrated liquid subjected to reverse osmosis treatment can be recycled by a hydraulic turbine device and is converted into mechanical energy to drag a booster pump at the front end of a reverse osmosis membrane, so that the energy consumption is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to mine water resource utilization and pressure utilization field, concretely relates to a scale inhibition and concentrated liquid pressure reuse type underground water purification device. BACKGROUND

[0002] The water used in underground production of coal mines is mainly used for spray dust removal of coal mining working face, cooling of fully mechanized mining equipment and emulsion proportioning, and the water quality requirements are different for different purposes.

[0003] The traditional mine water treatment process mainly adopts the process of "underground collection and lifting-ground treatment-pumping into underground for use", and the process has the problems of long treatment process, high energy consumption and large occupation area. The process flow of the traditional water treatment system is as follows: underground raw water lifting-ground→raw water tank→raw water pump→flocculant and bactericide adding device→quartz sand filter→activated carbon filter→scale inhibitor and reducing agent adding device→safety filter→high-pressure water pump→reverse osmosis membrane assembly→desalted water tank→desalted water pump→emulsion proportioning system. Although the traditional water treatment device can filter raw water, the integration degree is low and the occupation area is large. SUMMARY

[0004] Therefore, the utility model provides a scale inhibition and concentrated liquid pressure reuse type underground water purification device to solve the above problems of long process flow, high lifting energy consumption and large occupation area in the prior art. In order to achieve the above purpose, the utility model provides the following technical scheme: according to the first aspect of the utility model, a scale inhibition and concentrated liquid pressure reuse type underground water purification device, the device includes an emulsion water distribution pipeline formed by a scale inhibition device, a direct filtration membrane, a self-cleaning filter, a precision filter, a safety filter, a booster pump A, a reverse osmosis membrane and a desalted water tank connected in sequence through a pipeline; another outlet of the reverse osmosis membrane is connected in sequence with a hydraulic turbine device through a pipeline to form a wastewater discharge pipeline; a branch is formed by connecting the booster pump A and the hydraulic turbine device through a pipeline; the emulsion water distribution pipeline is connected in sequence with the booster pump B at the end of the desalted water tank.

[0005] Further, a coupling B, an explosion-proof motor and a coupling A are connected in sequence on the branch between the booster pump A and the hydraulic turbine device.

[0006] Further, the booster pump A, the coupling B, the explosion-proof motor, the coupling A and the hydraulic turbine device are coaxially connected.

[0007] Further, the coupling A and the coupling B are the same in structure.

[0008] Further, the booster pump A and the booster pump B are the same in structure.

[0009] The utility model has the following advantages:

[0010] 1. The device can effectively remove the impurities such as silt, coal dust, rust, colloidal substances, organic pollutants and inorganic salt ions in the raw water in the well, and meet the demand of high-purity water in the well.

[0011] 2. The straight filter membrane can replace the traditional coagulation sedimentation and filtration device.

[0012] 3. The scale inhibition device replaces the scale removal by adding chemicals, and reduces the use cost of chemicals.

[0013] 4. The high-pressure concentrated liquid of reverse osmosis can convert pressure energy into mechanical energy through the liquid turbine device, and through the connection of the shaft coupling and the explosion-proof motor, the loss of the booster pump is reduced, energy saving and consumption reduction are achieved, and the production cost of the coal mine is reduced.

[0014] 5. According to the size of the underground space, the raw water in the mine is directly treated underground, without the need of lifting and then pumping back to the underground for reuse, so that the process is short, the occupied area is small, the energy consumption is low, and the automation degree is high.

[0015] 6. The structure of the original drainage system is not changed, the shaft coupling can be disconnected in case of failure, the normal operation of the mine water drainage system is ensured, the production in the well is not hindered, and the safety in the well is ensured.

[0016] 7. The equipment involved in the utility model is a mature standardized product on the market, simple to assemble, and has good popularization significance. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A development structure diagram of a scale inhibition and concentrated liquid residual pressure recycling type underground water purification device is provided for some embodiments of the utility model.

[0018] In the drawing, 1 is a scale inhibition device, 2 is a straight filter membrane, 3 is a self-cleaning filter, 4 is a precision filter, 5 is a security filter, 6 is a booster pump A, 7 is a reverse osmosis membrane, 8 is a liquid turbine device, 9 is a shaft coupling A, 10 is an explosion-proof motor, 11 is a shaft coupling B, 12 is a desalted water tank, and 13 is a booster pump B. DETAILED DESCRIPTION

[0019] The embodiments of the utility model are described below by specific specific embodiments, and those skilled in the art can easily understand other advantages and effects of the utility model from the contents disclosed in the specification. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0020] Embodiment 1

[0021] As Figure 1As shown, the utility model discloses a kind of scale inhibition and concentrated liquid residual pressure recycling type downhole water purification device in the first aspect embodiment of the utility model, the device includes the emulsion water distribution pipeline formed by antifouling device 1, straight filter membrane 2, self-cleaning filter 3, precision filter 4, security filter 5, booster pump A 6, reverse osmosis membrane 7, desalted water tank 12 in turn through pipeline series connection;Reverse osmosis membrane 7 another outlet is connected by pipeline and forms branch between booster pump A 6 and hydraulic turbine device 8;Emulsion water distribution pipeline is connected by pipeline and forms branch between booster pump B 13 in desalted water tank 12 terminal series connection.

[0022] In the above embodiment, it needs to be explained that, when using, the system prevents pipe scale formation by antifouling device 1 and replaces scale removal by adding chemicals to prevent scale formation, and the concentrated liquid treated by reverse osmosis membrane 7 is converted into mechanical energy by hydraulic turbine device 8 using the recovered pressure energy after straight filter membrane 2 replaces traditional coagulation sedimentation filtration.

[0023] The above embodiment achieves the following technical effects:

[0024] 1, the device can effectively remove impurities such as silt, coal dust, rust, colloidal substances, organic pollutants and inorganic salt ions in downhole raw water, meet the demand of downhole high-purity water.

[0025] 2, straight filter membrane can replace traditional coagulation sedimentation filtration device.

[0026] 3, antifouling device replaces scale removal by adding chemicals to reduce the use cost of chemicals.

[0027] 4, reverse osmosis high-pressure concentrated liquid can convert pressure energy into mechanical energy by hydraulic turbine device, reduce the loss of booster pump by connecting through coupling and explosion-proof motor, save energy and reduce consumption, reduce production cost for coal mine.

[0028] 5, according to the size of downhole space, mine raw water is directly treated downhole, without lifting and reusing after treatment, short process, small land area, low energy consumption and high automation.

[0029] 6, without changing the structure of original drainage system, if fault occurs, coupling can be disconnected, ensure normal operation of mine water drainage system, ensure that downhole production is not hindered, and downhole safety is guaranteed.

[0030] 7, the equipment involved in the utility model is mature standardized product on the market, easy to assemble, and has good popularization significance.

[0031] Example 2

[0032] As Figure 1As shown, a scale inhibitor and concentrate residual pressure recovery downhole water purification device includes all the contents of Example 1. In addition, a coupling B11, an explosion-proof motor 10 and a coupling A9 are connected in series on the branch between the booster pump A6 and the hydraulic turbine device 8.

[0033] Optionally, the booster pump A6, coupling B11, explosion-proof motor 10, coupling A9, and hydraulic turbine device 8 are coaxially connected.

[0034] Optionally, coupling A9 has the same structure as coupling B11.

[0035] The technical effect achieved by the above embodiments is that by connecting the explosion-proof motor 10 and the booster pump A6 coaxially via couplings A9 and B11, the power consumption of the pump can be reduced, thus achieving energy saving and consumption reduction.

[0036] Example 3

[0037] like Figure 1 As shown, a scale inhibitor and concentrate residual pressure recycling downhole water purification device includes all the contents of Example 2, except that booster pump A6 and booster pump B13 have the same structure.

[0038] The technical effect achieved by the above embodiments is that the processing cost is significantly reduced through the above settings.

[0039] Example 4

[0040] like Figure 1 As shown, a downhole integrated water purification method with pipeline scale inhibition and concentrate residual pressure recovery is provided. Utilizing a downhole water purification device with scale inhibition and concentrate residual pressure recovery as described in Examples 1 to 3, the method includes the following steps:

[0041] Step S100: The raw mine water is scale-inhibited by the scale inhibition device 1, and then passed through the direct filter membrane 2, self-cleaning filter 3, precision filter 4, and security filter 5. After being pumped into the reverse osmosis membrane 7 by the booster pump A6, the raw mine water is treated to form demineralized water, which is then stored in the demineralized water tank 12 and then pumped to various places underground for reuse by the booster pump B13.

[0042] Step S200: The hydraulic turbine device 8 connected in parallel to another outlet pipeline of the reverse osmosis membrane 7 recovers the pressure energy of the high-pressure concentrate formed by the reverse osmosis membrane 7 and converts it into mechanical energy. Its energy recovery pipeline is a loop formed by coaxial connection of coupling A9, explosion-proof motor 10, coupling B11 and booster pump A6, thereby reducing the energy loss of booster pump A6.

[0043] Step S300: The high-pressure concentrate is converted into low-pressure concentrate by the hydraulic turbine device 8 and then discharged.

[0044] In the description of the utility model, it is necessary to understand that the directions or position relations indicated by the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as limiting the utility model.

[0045] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0046] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and other terms should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0047] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.

[0048] Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify, replace and modify the above embodiments within the scope of the utility model.

[0049] In the description of the present specification, the description referring to the terms "embodiment one", "embodiment two", "example", "specific example", or "some examples" and the like means that the specific method, device or feature described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, methods, devices or features can be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0050] The above is only the preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A scale-inhibiting and concentrate residual pressure recycling downhole water purification device, characterized in that, The device includes an emulsion water distribution pipeline formed by a scale inhibitor (1), a direct filter membrane (2), a self-cleaning filter (3), a precision filter (4), a security filter (5), a booster pump A (6), a reverse osmosis membrane (7), and a demineralized water tank (12) connected in series by pipes; another outlet of the reverse osmosis membrane (7) is connected in series by a hydraulic turbine device (8) to form a wastewater discharge pipeline; a branch is formed by connecting the booster pump A (6) and the hydraulic turbine device (8) through pipes; the emulsion water distribution pipeline is located at the end of the demineralized water tank (12) and connected in series with a booster pump B (13).

2. The scale-inhibiting and concentrate residual pressure recycling downhole water purification device according to claim 1, characterized in that, A coupling B (11), an explosion-proof motor (10), and a coupling A (9) are connected in series on the branch between the booster pump A (6) and the hydraulic turbine device (8).

3. The scale-inhibiting and concentrate residual pressure recycling downhole water purification device according to claim 2, characterized in that, The booster pump A (6), coupling B (11), explosion-proof motor (10), coupling A (9) and hydraulic turbine device (8) are coaxially connected.

4. The scale-inhibiting and concentrate residual pressure recycling downhole water purification device according to claim 3, characterized in that, Coupling A(9) has the same structure as coupling B(11).

5. The scale-inhibiting and concentrate residual pressure recycling downhole water purification device according to claim 1, characterized in that, Booster pump A (6) has the same structure as booster pump B (13).

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