Drunk water resource utilization system

Abstract

The utility model belongs to the technical field of water treatment, and relates to a drainage water resource utilization system. Comprising drainage water pretreatment equipment, a drainage water filtering device, a first water tank, an ultrafiltration device, a reverse osmosis device and a second water tank which are sequentially connected, suspended matters and part of soluble impurities in the drained water are removed through drained water pretreatment equipment; suspended solids, particulate matters, insoluble impurities and the like in the mine water are further removed through the drainage water filtering device, and it is ensured that the water is clear; impurities such as macromolecular organic matters and colloidal particles in the mine water are removed through the ultrafiltration device; soluble salts and heavy metal ions are removed through the permeation device, so that pure water resources are obtained; according to the device, drainage water is converted into irrigation water and a hydrogen production water source, cyclic utilization of water resources is achieved, waste of the water resources is avoided, and the utilization rate of the water resources is increased.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water treatment technical field relates to a kind of dewatering water resource utilization system. BACKGROUND

[0002] In the process of coal mining, due to the excavation of mine development roadway, the natural balance of underground aquifer is destroyed, resulting in the generation of a large amount of mine dewatering water. These dewatering water contains sand, mud, soluble inorganic salt, grease and other pollutants, and its direct discharge not only causes serious waste of groundwater resources, but also the untreated water quality poses a serious threat to the surrounding water ecological environment. Therefore, how to realize the effective treatment and resource utilization of dewatering water has become an important issue faced by the current coal mining industry.

[0003] At present, for the treatment and resource utilization of dewatering water, the industry has developed a variety of technical methods. Among them, coagulation sedimentation and filtration treatment is a common physical treatment method, which coagulates suspended solids, colloids and other impurities in water into larger particles by adding coagulant, and then removes them by sedimentation and filtration. However, this method has limited effect on the removal of soluble inorganic salt and grease and other pollutants, and the sludge and waste produced during the treatment process need to be properly treated to avoid secondary pollution.

[0004] Another resource utilization technology is membrane concentration technology, such as reverse osmosis and electrodialysis. These technologies can effectively remove dissolved salts, organic matter and other impurities in water through the selective permeation of membrane components, thereby obtaining high-quality water resources. However, membrane concentration technology faces problems such as high operating cost, easy pollution and blockage of membrane components, and the need for frequent cleaning and replacement, which limits its widespread application.

[0005] In view of the deficiencies of the prior art, there is an urgent need for an efficient, stable and economical dewatering water resource utilization system that can effectively remove various pollutants in dewatering water while reducing treatment cost and improving water resource utilization rate. UTILITY MODEL CONTENT

[0006] The utility model aims to solve the technical problems in the prior art and provides a dewatering water resource utilization system to improve the utilization rate of water resources.

[0007] To achieve the above purpose, the utility model adopts the following technical solutions:

[0008] The utility model provides a kind of dewatering water resource utilization system, including the dewatering water pretreatment equipment, dewatering water filter device, first water tank, ultrafiltration device, reverse osmosis device and second water tank connected in sequence;The dewatering water pretreatment equipment side wall is provided with water inlet;Second water tank side wall bottom is provided with second water tank water outlet;The dewatering water pretreatment equipment is internally provided with partition wall;Partition wall side is provided with mobile agitator, and other side is provided with inclined plate;Mobile agitator and fixed shaft are connected;Fixed shaft is arranged on the inner wall of dewatering water pretreatment equipment.

[0009] Preferably, the dewatering water pretreatment equipment side wall is provided with a first liquid outlet; the first liquid outlet is connected with the dewatering water filter device; an overflow groove is arranged on the inner wall of the dewatering water pretreatment equipment; the overflow groove is connected with the first liquid outlet.

[0010] Preferably, the inclined plate bottom is provided with a sludge settling tank; the dewatering water pretreatment equipment bottom is provided with a sludge outlet; the sludge settling tank is connected with the sludge outlet.

[0011] Preferably, the dewatering water pretreatment equipment top is provided with a dosing port; the dosing port is above the mobile agitator.

[0012] Preferably, the dewatering water filter device bottom is provided with a liquid inlet; the dewatering water filter device top is provided with a second liquid outlet; the liquid inlet is connected with the dewatering water pretreatment equipment; the second liquid outlet is connected with the first water tank; the dewatering water filter device is internally provided with a filter layer.

[0013] Preferably, the filter layer includes quartz sand layer, activated carbon layer and zeolite layer from top to bottom.

[0014] Preferably, the first water tank top is provided with a first water tank water inlet; the first water tank water inlet is connected with the dewatering water filter device; the first water tank side wall bottom is provided with a first water tank water outlet; the first water tank water outlet is connected with the ultrafiltration device.

[0015] Preferably, the ultrafiltration device includes an ultrafiltration water inlet, an ultrafiltration membrane assembly and an ultrafiltration water outlet; the ultrafiltration water inlet and the ultrafiltration water outlet are connected through the ultrafiltration membrane assembly; the ultrafiltration water inlet is connected with the first water tank; the ultrafiltration water outlet is connected with the reverse osmosis device.

[0016] Preferably, the reverse osmosis device includes a reverse osmosis water inlet, a reverse osmosis membrane assembly and a reverse osmosis water outlet; the reverse osmosis water inlet and the reverse osmosis water outlet are connected through the reverse osmosis membrane assembly; the reverse osmosis water inlet is connected with the ultrafiltration device; the reverse osmosis water outlet is connected with the second water tank.

[0017] Preferably, the second water tank top is provided with a second water tank water inlet; the second water tank water inlet is connected with the reverse osmosis device.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The present application removes suspended solids and part of dissolved impurities in the dewatering water through the dewatering water pretreatment equipment; further removes suspended solids, particulate matter and insoluble impurities in the mine water through the dewatering water filtering device, ensuring clear water quality; removes macromolecular organic matter, colloidal particles and other impurities in the mine water through the ultrafiltration device; removes dissolved salts and heavy metal ions through the reverse osmosis device, thereby obtaining pure water resources; the present application converts the dewatering water into irrigation water and hydrogen production water source, realizes the recycling of water resources, avoids the waste of water resources and improves the utilization rate of water resources. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1 It is a structural schematic view of the dewatering water resource utilization system of the present application;

[0022] Figure 2 It is a structural schematic view of the dewatering water pretreatment equipment of the present application;

[0023] 1, dewatering water pretreatment equipment; 101, dosing port; 102, water inlet; 103, fixed shaft; 104, moving stirrer; 105, partition wall; 106, mud settling bucket; 107, mud outlet; 108, overflow tank; 109, first liquid outlet; 110, inclined plate; 2, dewatering water filtering device; 201, second liquid outlet; 202, quartz sand layer; 203, activated carbon layer; 204, zeolite layer; 205, liquid inlet; 3, ultrafiltration device; 301, ultrafiltration water inlet; 302, ultrafiltration membrane assembly; 303, ultrafiltration water outlet; 4, first water tank; 401, first water tank water inlet; 402, first water tank water outlet; 5, reverse osmosis device; 501, reverse osmosis water inlet; 502, reverse osmosis membrane assembly; 503, reverse osmosis water outlet; 6, second water tank; 601, second water tank water inlet; 602, second water tank water outlet. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0026] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0027] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "horizontal", "inner" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the present application product when it is usually placed, only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, structure and operation, therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used for differentiation, and cannot be understood as indicating or implying relative importance.

[0028] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0029] In the description of the embodiments of the present application, it should also be noted that unless otherwise explicitly specified and limited, if the terms "set", "mount", "connected", "connected" appear, they should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, or can be connected inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] The present application will be described in further detail below in conjunction with the drawings:

[0031] The utility model provides a kind of dewatering water resource utilization system, as shown in Figure 1 It includes dewatering water pretreatment equipment 1, dewatering water filter device 2, first water tank 4, ultrafiltration device 3, reverse osmosis device 5 and second water tank 6 connected in sequence.The utility model removes suspended solids and part of dissolved impurities in dewatering water by dewatering water pretreatment equipment 1;Further remove suspended solids, particulate matter and insoluble impurities etc. in mine water by dewatering water filter device 2, ensure water quality clear;Remove macromolecular organic matter, colloidal particles and other impurities in mine water by ultrafiltration device 3;Remove dissolved salts and heavy metal ions by reverse osmosis device 4, to obtain pure water resource;First water tank 4 and second water tank 6 are used to temporarily store dewatering water after processing, and water quality in first water tank 4 meets "farmland irrigation water quality standard GB5084-2021", and water quality in second water tank 6 meets "water electrolysis hydrogen production system technical requirements (GB / T 19774-2005)".

[0032] As shown in Figure 2 The dewatering water pretreatment equipment 1 is concrete pool body, and the side wall is provided with water inlet 102 and first liquid outlet 109;The first liquid outlet 109 is connected with dewatering water filter device 2;Overflow groove 108 is arranged on the inner wall of the dewatering water pretreatment equipment 1;The overflow groove 108 is connected with the first liquid outlet 109;The dewatering water pretreatment equipment 1 is provided with partition 105 inside;The partition 105 is provided with mobile agitator 104 on one side, and is provided with inclined plate 110 on the other side;The mobile agitator 104 is connected with fixed shaft 103;The fixed shaft 103 is arranged on the inner wall of the dewatering water pretreatment equipment 1.The bottom of the inclined plate 110 is provided with mud bucket 106;The bottom of the dewatering water pretreatment equipment 1 is provided with mud outlet 107;The mud bucket 106 is connected with the mud outlet 107.The top of the dewatering water pretreatment equipment 1 is provided with dosing port 101;The dosing port 101 is located above the mobile agitator 104.Dosing port 101 realizes adding polyaluminum chloride (PAC) and polyacrylamide (PAM) and other chemical reagents into dewatering water, promotes the coagulation and precipitation of suspended solids.The mixture of dewatering water and reagent can be efficiently stirred by mobile agitator 104 with the stable support of fixed shaft 103, to ensure that reagent is fully dissolved and uniformly dispersed, thereby improving mixing efficiency and accelerating the coagulation process of suspended solids.Inclined plate 110 accelerates the precipitation of mixed liquid, realizes mud-water separation, and the precipitated sludge is collected in mud bucket and discharged through mud outlet 107, and the supernatant after precipitation overflows through overflow groove 108 and enters dewatering water filter device 2.

[0033] The drain water filtration device 2 has an inlet 205 at its bottom and a second outlet 201 at its top. The inlet 205 is connected to the first outlet 109, and the second outlet 201 is connected to the first water tank 4. The drain water filtration device 2 contains a filter layer, which, from top to bottom, includes a quartz sand layer 202, an activated carbon layer 203, and a zeolite layer 204. Quartz sand, as the filter medium, removes suspended solids, colloids, and other impurities from the water, thus performing physical filtration. Activated carbon has a strong adsorption capacity, removing organic matter, residual chlorine, color, etc., further purifying the water. Zeolite has excellent adsorption properties, effectively removing heavy metal ions, ammonia nitrogen, and other harmful substances from the water, improving water quality. Through the synergistic effect of the quartz sand layer 202, activated carbon layer 203, and zeolite layer 204, multi-stage filtration and purification of the drain water are achieved, effectively removing harmful substances and impurities from the water.

[0034] The first water tank 4 is provided with a first water tank inlet 401 at the top; the first water tank inlet 401 is connected to the second liquid outlet 201; the first water tank 4 is provided with a first water tank outlet 402 at the bottom of the side wall; the first water tank outlet 402 is connected to the ultrafiltration device 3.

[0035] The ultrafiltration device 3 includes an ultrafiltration inlet 301, an ultrafiltration membrane assembly 302, and an ultrafiltration outlet 303. The ultrafiltration inlet 301 and the ultrafiltration outlet 303 are connected by the ultrafiltration membrane assembly 302. The ultrafiltration inlet 301 is connected to the outlet 402 of the first water tank. The ultrafiltration outlet 303 is connected to the reverse osmosis device 5. The membrane assembly 302 has excellent separation performance and can effectively remove impurities such as tiny particles, bacteria, and viruses from the water, while retaining minerals and trace elements.

[0036] The reverse osmosis device 5 includes a reverse osmosis inlet 501, a reverse osmosis membrane module 502, and a reverse osmosis outlet 503. The reverse osmosis inlet 501 and the reverse osmosis outlet 503 are connected by the reverse osmosis membrane module 502. The reverse osmosis inlet 501 is connected to the ultrafiltration outlet 303. The reverse osmosis outlet 503 is connected to the second water tank 6. The reverse osmosis membrane module has extremely high desalination and rejection rates, effectively removing dissolved salts, colloids, organic matter, bacteria, and other impurities from the water, resulting in higher purity effluent.

[0037] The second water tank 6 is provided with a second water tank inlet 601 at the top; the second water tank inlet 601 is connected to the reverse osmosis outlet 503; the second water tank outlet 602 is provided at the bottom of the side wall of the second water tank.

[0038] The working process of this utility model is as follows:

[0039] Drainage water generated during coal mining enters the drainage water pretreatment equipment 1 through inlet 102 and is thoroughly mixed with PAC and PAM entering through dosing port 101 under the action of agitator 104. The mixed liquid overflows from the top of partition wall 105 and is accelerated to settle under the action of inclined plate 110, achieving mud-water separation. The settled sludge is collected in settling hopper 106 and discharged through sludge outlet 107. The supernatant after sedimentation overflows through the overflow tank 108 and is transported through the first outlet 109 to the inlet 205 at the bottom of the drain water filtration device 2. It passes through the zeolite layer 204, activated carbon layer 203, and quartz sand layer 202 in sequence to remove pollutants and further purify the water. The filtered water is discharged through the second outlet 201 to the inlet 401 of the first water tank and temporarily stored in the first water tank 4. Part of the water in the first water tank 4 is used directly as irrigation water, and the other part is transported through the outlet 402 of the first water tank to the ultrafiltration inlet 301. Under the action of the ultrafiltration membrane module 302, the water quality is purified. The purified water is discharged through the ultrafiltration outlet 303 to the reverse osmosis inlet 501. Under the action of the reverse osmosis membrane module 502, the water quality is purified. The purified water is discharged through the outlet 503 of the reverse osmosis to the second water tank 6 for temporary storage. The water in the second water tank 6 is used as a hydrogen production water source and is discharged through the outlet 602 of the second water tank.

[0040] The water quality in the first water tank 4 meets the "Standard for Irrigation Water Quality GB5084-2021", and the water quality in the second water tank 6 meets the "Technical Requirements for Hydrogen Production Systems by Water Electrolysis (GB / T 19774-2005)".

[0041] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A system for the resource utilization of a dewatered water resource, characterized by The device comprises a dewatered water pretreatment device (1), a dewatered water filtering device (2), a first water tank (4), an ultrafiltration device (3), a reverse osmosis device (5) and a second water tank (6) connected in sequence.

2. A system for the utilization of a dried water resource according to claim 1, characterized in that, The side wall of the dewatered water pretreatment device (1) is provided with a water inlet (102); the bottom of the side wall of the second water tank is provided with a second water tank water outlet (602); the inside of the dewatered water pretreatment device (1) is provided with a partition wall (105); one side of the partition wall (105) is provided with a moving stirrer (104), and the other side is provided with an inclined plate (110); the moving stirrer (104) is connected with a fixed shaft (103); the fixed shaft (103) is arranged on the inner wall of the dewatered water pretreatment device (1).

3. A system for the utilization of a dried water resource according to claim 2, characterized in that, The side wall of the dewatered water pretreatment device (1) is provided with a first liquid outlet (109); the first liquid outlet (109) is connected with the dewatered water filtering device (2); the inner wall of the dewatered water pretreatment device (1) is provided with an overflow tank (108); the overflow tank (108) is connected with the first liquid outlet (109).

4. A system for the utilization of a dried water resource according to claim 2, characterized in that, The bottom of the inclined plate (110) is provided with a sludge settling tank (106); the bottom of the dewatered water pretreatment device (1) is provided with a sludge outlet (107); the sludge settling tank (106) is connected with the sludge outlet (107).

5. A system for the utilization of a dried water resource according to claim 1, characterized in that, The top of the dewatered water pretreatment device (1) is provided with a dosing port (101); the dosing port (101) is located above the moving stirrer (104).

6. A system for the utilization of a dried water resource according to claim 5, characterized in that, The bottom of the dewatered water filtering device (2) is provided with a liquid inlet (205); the top of the dewatered water filtering device (2) is provided with a second liquid outlet (201); the liquid inlet (205) is connected with the dewatered water pretreatment device (1); the second liquid outlet (201) is connected with the first water tank (4); the inside of the dewatered water filtering device (2) is provided with a filter layer.

7. A system for the utilization of a dried water resource according to claim 1, characterized in that, The filter layer comprises a quartz sand layer (202), an activated carbon layer (203) and a zeolite layer (204) from top to bottom.

8. A system for the utilization of a dried water resource according to claim 1, characterized in that, The top of the first water tank (4) is provided with a first water tank water inlet (401); the first water tank water inlet (401) is connected with the dewatered water filtering device (2); the bottom of the side wall of the first water tank (4) is provided with a first water tank water outlet (402); the first water tank water outlet (402) is connected with the ultrafiltration device (3). The ultrafiltration device (3) comprises an ultrafiltration water inlet (301), an ultrafiltration membrane assembly (302) and an ultrafiltration water outlet (303); the ultrafiltration water inlet (301) and the ultrafiltration water outlet (303) are connected through the ultrafiltration membrane assembly (302); the ultrafiltration water inlet (301) is connected with the first water tank (4); the ultrafiltration water outlet (303) is connected with the reverse osmosis device (5).

9. A system for the utilization of a dried water resource according to claim 1, characterized in that, The reverse osmosis device (5) comprises a reverse osmosis water inlet (501), a reverse osmosis membrane assembly (502) and a reverse osmosis water outlet (503); the reverse osmosis water inlet (501) and the reverse osmosis water outlet (503) are connected through the reverse osmosis membrane assembly (502); the reverse osmosis water inlet (501) is connected with the ultrafiltration device (3); and the reverse osmosis water outlet (503) is connected with the second water tank (6).

10. A system for the utilization of a dried water resource according to claim 1, characterized in that, The second water tank (6) is provided with a second water tank water inlet (601) at the top; the second water tank water inlet (601) is connected with the reverse osmosis device (5).

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