Mine water pretreatment system

Abstract

The utility model discloses a mine water pretreatment system, which comprises a pretreatment raw water tank, a lifting pump, a raw water high-density tank and a plate-and-frame filter press which are sequentially communicated, the plate-and-frame filter press is provided with a filtrate water outlet, and the filtrate water outlet is communicated with the raw water high-density tank. The mine water pretreatment system provided by the utility model has the advantages of low maintenance cost and stable and reliable operation.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment systems, in particular to a mine water pretreatment system. Background Art

[0002] In the mine water pretreatment system, three raw water lifting pumps are usually installed (each with a flow rate of 1200m 3 / h) The pre-treatment raw water pool is pumped into the raw water high-density pool. The raw water high-density pool uses a double alkali method to soften the water and produce sludge. The sludge is discharged to the plate and frame filter press for treatment. The main component of the sludge is calcium carbonate. The plate and frame filter press is responsible for treating the sludge discharged from the raw water high-density pool. Each filter area is 550㎡. In the related technology, the sludge is filtered by the plate and frame filter press and the filtrate water is discharged into the pre-treatment raw water pool for re-treatment. However, because the main component of the filtrate water is calcium carbonate, when the raw water containing the filtrate water passes through the raw water lifting pump, the inlet and outlet valves, auxiliary pipes, impellers, and volutes of the raw water lifting pump are prone to scaling during operation, resulting in insufficient water supply to the raw water lifting pump and damage to the pump accessories, which requires regular maintenance and cleaning. While the maintenance cost is high, it also causes frequent shutdowns of the mine water pretreatment system, affecting the stable operation of the system. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the utility model provides a mine water pretreatment system, which has the advantages of low maintenance cost and stable and reliable operation.

[0005] The mine water pretreatment system of the embodiment of the utility model comprises a pretreatment raw water tank, a lifting pump, a raw water high-density tank and a plate-frame filter press which are connected in sequence. The plate-frame filter press has a filtrate water discharge port which is connected to the raw water high-density tank.

[0006] According to the mine water pretreatment system of the embodiment of the utility model, the lifting pump transports the raw water in the pretreatment raw water pool to the raw water high-density pool. The raw water high-density pool produces sludge after treating the raw water. The sludge enters the plate and frame filter press to be filtered to form filtrate water. The filtrate water enters the raw water high-density pool from the filtrate water outlet for repeated treatment. Compared with the filtrate water entering the pretreatment raw water pool, the filtrate water containing calcium carbonate at this time will not pass through the lifting pump located upstream of the raw water high-density pool, and then the lifting pump's inlet and outlet valves, auxiliary pipelines, impellers, and volutes are not prone to scaling during operation, thereby greatly shortening the maintenance cycle, maintenance time, and maintenance cost of the lifting pump, effectively ensuring the stable and reliable operation of the mine water pretreatment system.

[0007] In some embodiments, the mine water pretreatment system also includes a buffer container, which has a liquid inlet, a liquid outlet and an air outlet. The filtrate water outlet is connected to the liquid inlet through a first pipeline, and the liquid outlet is connected to the raw water high-density tank through a second pipeline.

[0008] In some embodiments, the raw water high-density tank includes a front mixing tank, and the filtrate water outlet is connected to the front mixing tank.

[0009] In some embodiments, the axial direction of the buffer container extends in the horizontal direction, and the cross-sectional area of ​​the inner cavity of the buffer container is larger than the cross-sectional area of ​​the inner cavity of the first pipeline, wherein:

[0010] The liquid inlet and the liquid outlet are respectively arranged at two ends of the extending direction of the buffer container, or the liquid inlet and the liquid outlet are arranged at the same end of the extending direction of the buffer container.

[0011] In some embodiments, the liquid inlet is disposed on the top wall of the buffer container, and the liquid outlet is disposed on the bottom wall of the buffer container, or the liquid outlet is disposed on the side wall of the buffer container and adjacent to the bottom wall.

[0012] In some embodiments, the air outlet is arranged at the top of the buffer container, and the mine water pretreatment system also includes a drainage pipe, the lower end of the drainage pipe is connected to the air outlet, and the upper end of the drainage pipe is used to be exposed outside the factory building.

[0013] In some embodiments, the drainage tube includes a first tube connected to the air outlet and a second tube connected to the first tube, the first tube extends in a height direction, and the second tube extends in a horizontal direction;

[0014] Alternatively, the upper end of the drainage tube is sealed, a drainage outlet is provided on the tube wall of the drainage tube, and the drainage outlet is adjacent to the upper end of the drainage tube.

[0015] In some embodiments, the height of the liquid outlet is higher than the liquid level of the raw water high-density tank;

[0016] Alternatively, a pressure pump is installed on the second pipe.

[0017] In some embodiments, a cleaning port is provided on the buffer container, and the mine water pretreatment system further comprises a first cover body, which is movably connected to the buffer container to facilitate opening and closing of the cleaning port.

[0018] In some embodiments, a sewage outlet is provided at the bottom of the buffer container, and the mine water pretreatment system further comprises a second cover body, which is movably connected to the buffer container to facilitate opening and closing of the sewage outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of a mine water pretreatment system according to an embodiment of the utility model.

[0020] Figure 2 It is a schematic diagram of a buffer container in a mine water pretreatment system according to an embodiment of the utility model.

[0021] Reference numerals:

[0022] 1. Pretreatment raw water tank; 2. Lifting pump; 3. Raw water high-density tank; 31. Pre-mixing tank; 4. Plate and frame filter press; 5. Buffer container; 51. Liquid inlet; 52. Liquid outlet; 53. Air outlet; 6. Drainage pipe; 7. First pipeline; 8. Second pipeline. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0024] Combine the following Figure 1 and Figure 2 The present invention describes a mine water pretreatment system according to an embodiment of the present invention.

[0025] The mine water pretreatment system of the embodiment of the utility model comprises a pretreatment raw water tank 1, a lifting pump 2, a raw water high-density tank 3 and a plate-frame filter press 4 which are connected in sequence. The plate-frame filter press 4 has a filtrate water discharge port which is connected to the raw water high-density tank 3.

[0026] According to the mine water pretreatment system of the embodiment of the utility model, the lifting pump 2 transports the raw water in the pretreatment raw water tank 1 to the raw water high-density tank 3. The raw water high-density tank 3 produces sludge after treating the raw water. The sludge enters the plate-frame filter press 4 to be filtered to form filtrate water. The filtrate water enters the raw water high-density tank 3 from the filtrate water outlet for repeated treatment. Compared with the filtrate water entering the pretreatment raw water tank 1, the filtrate water containing calcium carbonate at this time will not pass through the lifting pump 2 located upstream of the raw water high-density tank 3, and thus the inlet and outlet valves, auxiliary pipelines, impellers, and volutes of the lifting pump 2 are not prone to scaling during operation, thereby greatly shortening the maintenance cycle, maintenance time, and maintenance cost of the lifting pump 2, and effectively ensuring the stable and reliable operation of the mine water pretreatment system.

[0027] In some embodiments, Figure 1 and Figure 2As shown, the mine water pretreatment system also includes a buffer container 5, which has a liquid inlet 51, a liquid outlet 52 and an air outlet 53. The filtrate water outlet is connected to the liquid inlet 51 through a first pipeline 7, and the liquid outlet 52 is connected to the raw water high-density tank 3 through a second pipeline 8.

[0028] When the plate and frame filter press 4 is backflushing, the high-pressure gas will be discharged from the filtrate water outlet together with the filtrate water. By setting the buffer container 5, the filtrate water carrying the high-pressure gas first enters the buffer container 5 for buffering and self-retention, and the high-pressure gas therein will be discharged through the air outlet 53. At this time, when the filtrate water enters the raw water high-density tank 3 from the liquid outlet 52 through the second pipeline 8, it basically does not carry the high-pressure gas, and there will be no excessively fast flow rate, which effectively avoids the splashing of the filtrate water in the raw water high-density tank 3.

[0029] In some embodiments, Figure 1 As shown, the raw water high-density tank 3 includes a front mixing tank 31, and the filtrate water outlet is connected to the front mixing tank 31.

[0030] That is, the filtrate water enters the pre-mixing tank 31 located upstream in the raw water high-density tank 3, thereby ensuring that the filtrate water undergoes all treatment processes together with the raw water in the raw water high-density tank 3, and the treatment reliability of the filtrate water is strong.

[0031] In some embodiments, Figure 1 As shown, the axial direction of the buffer container 5 extends in the horizontal direction, and the cross-sectional area of ​​the inner cavity of the buffer container 5 is larger than the cross-sectional area of ​​the inner cavity of the first pipeline 7, thereby ensuring that when the filtrate water is input into the buffer container 5 through the first pipe, the buffer container 5 will not be suddenly filled up, causing the filtrate water to block the air outlet 53 or even overflow from the air outlet 53.

[0032] The liquid inlet 51 and the liquid outlet 52 are respectively arranged at two ends of the extension direction of the buffer container 5, thereby providing the filtrate water with sufficient buffering time, ensuring that the filtrate water flows into the second tube at a slower rate.

[0033] Alternatively, the liquid inlet 51 and the liquid outlet 52 are arranged at the same end of the extension direction of the buffer container 5. In this case, after the filtrate water enters the buffer container 5 from the filtrate inlet, it can enter the pre-mixing tank 31 with a sufficiently large power when the buffer container 5 is separated from the high-pressure air, effectively avoiding the filtrate water being discharged from the buffer container 5 too slowly, causing the filtrate water to fill the buffer container 5.

[0034] In some embodiments, Figure 2 As shown, the liquid inlet 51 is arranged on the top wall of the buffer container 5, and the liquid outlet 52 is arranged on the bottom wall of the buffer container 5, or the liquid outlet 52 is arranged on the side wall of the buffer container 5 and adjacent to the bottom wall.

[0035] By arranging the liquid inlet 51 on the top wall of the buffer container 5, it is ensured that the filtrate water enters the buffer container 5 in a downward direction, thereby realizing rapid buffering of the filtrate water. By arranging the liquid outlet 52 on the bottom wall of the buffer container 5, or by arranging the liquid outlet 52 on the side wall of the buffer container 5 and adjacent to the bottom wall, it is ensured that the filtrate water can be quickly discharged to the front mixing tank 31.

[0036] In some embodiments, Figure 2 As shown, the air outlet 53 is arranged at the top of the buffer container 5, and the mine water pretreatment system further comprises a drainage pipe 6, the lower end of the drainage pipe 6 is connected to the air outlet 53, and the upper end of the drainage pipe 6 is used to be exposed outside the factory building.

[0037] The drainage pipe 6 guides the air out of the factory building, effectively preventing the exhausted air from accumulating in the factory building and causing potential safety hazards to the workers in the factory building.

[0038] In some embodiments, the drainage tube 6 includes a first tube connected to the air outlet 53 and a second tube connected to the first tube, the first tube extends in the height direction, and the second tube extends in the horizontal direction. Alternatively, the upper end of the drainage tube 6 is closed, and a drainage outlet is provided on the tube wall of the drainage tube 6, and the drainage outlet is adjacent to the upper end of the drainage tube 6.

[0039] The above arrangement effectively prevents the upper end opening of the drainage pipe 6 from being vertically upward and impurities such as rainwater from outside from mistakenly entering the drainage pipe 6, thereby effectively ensuring the reliability of raw water treatment.

[0040] In some embodiments, the height of the liquid outlet 52 is higher than the liquid level of the raw water high-density tank 3. This ensures that the filtrate water can automatically flow into the raw water high-density tank 3 under gravity and its initial velocity.

[0041] Alternatively, a booster pump is installed on the second pipe. For example, when the flow rate slows down due to scaling of the second pipe and the inner wall of the buffer container 5, in order to prevent the filtrate water from filling the buffer container 5, the booster pump can be used to quickly transport the filtrate water in the buffer container 5 to the raw water high-density tank 3.

[0042] In some embodiments, a cleaning port is provided on the buffer container 5, and the mine water pretreatment system further comprises a first cover body, which is movably connected to the buffer container 5 to facilitate opening and closing of the cleaning port.

[0043] By moving the first cover to open the cleaning port, the staff can regularly clean the dirt in the buffer container 5 through the cleaning port to effectively prevent the dirt from clogging the liquid inlet 51 and the liquid outlet 52 .

[0044] Specifically, the first cover can be pivotally connected to the buffer container 5, and when the first cover closes the cleaning port, the first cover is locked and connected to the buffer container 5 via a locking member. The cleaning port can be provided on the top wall of the buffer container 5, or on the side wall of the buffer container 5.

[0045] In some embodiments, a sewage outlet is provided at the bottom of the buffer container 5, and the mine water pretreatment system further comprises a second cover body, which is movably connected to the buffer container 5 to facilitate opening and closing of the sewage outlet.

[0046] After the buffer container 5 is cleaned, the drain port can be opened so that the dirt can be discharged from the buffer container 5 instead of being transported to the front mixing tank 31 .

[0047] Specifically, the sewage outlet is arranged on the side wall of the buffer container 5 adjacent to the bottom wall, and the second cover body can be pivotally connected to the buffer container 5. When the second cover body closes the sewage outlet, the second cover body is locked and connected to the buffer container 5 through a locking member.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0050] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0052] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean 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 present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0053] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A mine water pretreatment system, characterized in that: It comprises a pre-treated raw water tank, a lifting pump, a raw water high-density tank and a plate-frame filter press which are connected in sequence. The plate-frame filter press has a filtrate water discharge port which is connected to the raw water high-density tank.

2. The mine water pretreatment system according to claim 1, characterized in that: The mine water pretreatment system also includes a buffer container, which has a liquid inlet, a liquid outlet and an air outlet. The filtrate water outlet is connected to the liquid inlet through a first pipeline, and the liquid outlet is connected to the raw water high-density tank through a second pipeline.

3. The mine water pretreatment system according to claim 1, characterized in that: The raw water high-density tank includes a front mixing tank, and the filtrate water outlet is connected to the front mixing tank.

4. The mine water pretreatment system according to claim 2, characterized in that: The axial direction of the buffer container extends in the horizontal direction, and the cross-sectional area of ​​the inner cavity of the buffer container is larger than the cross-sectional area of ​​the inner cavity of the first pipeline, wherein: The liquid inlet and the liquid outlet are respectively arranged at two ends of the extending direction of the buffer container, or the liquid inlet and the liquid outlet are arranged at the same end of the extending direction of the buffer container.

5. The mine water pretreatment system according to claim 2, characterized in that: The liquid inlet is arranged on the top wall of the buffer container, and the liquid outlet is arranged on the bottom wall of the buffer container, or the liquid outlet is arranged on the side wall of the buffer container and adjacent to the bottom wall.

6. The mine water pretreatment system according to claim 2, characterized in that: The air outlet is arranged at the top of the buffer container. The mine water pretreatment system further comprises a drainage pipe, the lower end of which is communicated with the air outlet, and the upper end of which is exposed outside the factory building.

7. The mine water pretreatment system according to claim 6, characterized in that: The drainage pipe includes a first pipe connected to the air outlet and a second pipe connected to the first pipe, the first pipe extends in a height direction, and the second pipe extends in a horizontal direction; Alternatively, the upper end of the drainage tube is sealed, a drainage outlet is provided on the tube wall of the drainage tube, and the drainage outlet is adjacent to the upper end of the drainage tube.

8. The mine water pretreatment system according to claim 2, characterized in that: The height of the liquid outlet is higher than the liquid level of the raw water high-density tank; Alternatively, a pressure pump is installed on the second pipe.

9. The mine water pretreatment system according to claim 2, characterized in that: The buffer container is provided with a cleaning port, and the mine water pretreatment system further comprises a first cover body, which is movably connected to the buffer container to facilitate opening and closing of the cleaning port.

10. The mine water pretreatment system according to claim 9, characterized in that: A sewage outlet is provided at the bottom of the buffer container. The mine water pretreatment system further comprises a second cover body, which is movably connected to the buffer container to facilitate opening and closing of the sewage outlet.

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