Sewage circulating system for coal mine drilling construction

Abstract

The utility model discloses a sewage circulation system for coal mine drilling construction, which comprises a first settling tank, a fourth settling tank and a water suction pump, the first settling tank is provided with a first water outlet, and a first filter screen is arranged at the first water outlet; the fourth settling tank comprises a first water sump and a second water sump, the first water sump is provided with a fourth water inlet and a fourth water outlet, the fourth water inlet is connected with the first water outlet, and the second water sump is connected with the fourth water outlet; a fourth filter screen is arranged at the fourth water outlet, and the aperture of the fourth filter screen is smaller than that of the first filter screen; the water inlet end of the water pump is connected with the second water sump, and the drainage end of the water pump is connected with the drill rod. According to the sewage circulating system, sewage generated in the coal mine drilling construction process can be treated, and the treated sewage is reused for coal mine drilling construction through the water suction pump, so that sewage treatment and cyclic utilization are realized, the working pressure of the coal mine sewage treatment system is reduced, and the working efficiency is improved. Meanwhile, waste of water resources is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment systems, in particular to a sewage circulation system used in coal mine drilling construction. Background Art

[0002] The common treatment method for coal mine wastewater generated during the drilling process is to transport the wastewater to the coal mine wastewater treatment system for treatment and then discharge it uniformly. However, due to the large amount of wastewater generated during the drilling process, the coal mine wastewater treatment system has a high working pressure and high treatment cost, and the discharge of treated wastewater also causes a waste of water resources. 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 proposes a sewage circulation system for coal mine drilling construction, which can treat the sewage generated during the coal mine drilling construction process, and re-transport the treated sewage to the drill rod through a water pump for coal mine drilling construction, thereby realizing sewage treatment and recycling, so as to reduce the working pressure of the coal mine sewage treatment system and reduce the waste of water resources.

[0005] The sewage circulation system for coal mine drilling construction of the embodiment of the utility model adopts a drilling rig to carry out the coal mine drilling construction, and the drilling rig includes a drill rod. The sewage circulation system for coal mine drilling construction includes a first sedimentation tank, a fourth sedimentation tank and a water pump. The first sedimentation tank has a first water outlet, and a first filter is provided at the first water outlet; the fourth sedimentation tank includes a first water tank and a second water tank, the first water tank has a fourth water inlet and a fourth water outlet, the fourth water inlet is connected to the first water outlet, and the second water tank is connected to the fourth water outlet; a fourth filter is provided at the fourth water outlet, and the aperture of the fourth filter is smaller than the aperture of the first filter; the water inlet end of the water pump is connected to the second water tank, and the discharge end of the water pump is connected to the drill rod.

[0006] In some embodiments, the first water outlet is disposed near an upper portion of the first sedimentation tank; and / or the fourth water outlet is disposed near an upper portion of the fourth sedimentation tank.

[0007] In some embodiments, the sewage circulation system used for coal mine drilling construction also includes a second sedimentation tank, the second sedimentation tank having a second water inlet and a second water outlet, the second water inlet is connected to the first water outlet, and the second water outlet is connected to the fourth water inlet; a second filter is provided at the second water outlet, and the aperture of the second filter is smaller than the aperture of the first filter and larger than the aperture of the fourth filter.

[0008] In some embodiments, the second water outlet is disposed near an upper portion of the second sedimentation tank.

[0009] In some embodiments, the sewage circulation system used for coal mine drilling construction also includes a third sedimentation tank, which has a third water inlet and a third water outlet, the third water inlet is connected to the second water outlet, and the third water outlet is connected to the fourth water inlet; a third filter is provided at the third water outlet, and the pore size of the third filter is smaller than the pore size of the second filter and larger than the pore size of the fourth filter.

[0010] In some embodiments, the third water outlet is disposed near an upper portion of the third sedimentation tank.

[0011] In some embodiments, the sewage circulation system for coal mine drilling construction also includes a connecting pipe, which includes a first end and a second end, the first end is connected to the first water outlet, and the second end is connected to the second water inlet.

[0012] In some embodiments, the inner diameter of the first end is greater than the inner diameter of the second end, and the projection of the first filter on the end surface of the first end covers the end surface of the first end.

[0013] In some embodiments, the first sedimentation tank has a sedimentation area and a water inlet area; the sewage circulation system also includes a water inlet pipe for introducing sewage, the water inlet pipe is arranged above the water inlet area, a flow equalizer is provided in the water inlet area, the flow equalizer has a plurality of flow equalizer holes, and the sewage enters the sedimentation area through the flow equalizer holes.

[0014] In some embodiments, the water pump is a high-pressure water pump.

[0015] The sewage circulation system for coal mine drilling construction of the embodiment of the utility model, the sewage generated during the coal mine drilling construction first enters the first sedimentation tank, the sewage is filtered by the first filter screen and then enters the first water tank of the fourth sedimentation tank, the impurity particles that cannot pass through the first filter screen are isolated in the first sedimentation tank and precipitated at the bottom of the first sedimentation tank; the sewage in the first water tank enters the second water tank after being filtered by the fourth filter screen, the impurity particles that cannot pass through the fourth filter screen are isolated in the first water tank and precipitated at the bottom of the first water tank, the sewage can be treated after being filtered by the fourth filter screen, and the treated sewage enters the second water tank for storage; then, the treated sewage in the second water tank is re-transported to the drill rod by a water pump for coal mine drilling construction, thereby realizing the recycling of sewage, reducing the working pressure of the coal mine sewage treatment system, and reducing the waste of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a structural schematic diagram of a sewage circulation system according to an embodiment of the utility model.

[0017] Figure 2 It is a structural schematic diagram from another angle of a sewage circulation system of an embodiment of the utility model.

[0018] Figure 3 It is a schematic diagram of the connection structure of a first sedimentation tank and a second sedimentation tank of a sewage circulation system in one embodiment of the utility model.

[0019] Reference numerals:

[0020] 100. Sewage circulation system;

[0021] 1. First sedimentation box; 11. First water outlet; 12. First filter screen; 13. Sedimentation area; 14. Water inlet area; 15. Flow equalizer plate; 151. Flow equalizer hole;

[0022] 2. Second sedimentation tank; 21. Second water inlet; 22. Second water outlet; 23. Second filter;

[0023] 3. The third sedimentation tank; 31. The third water inlet; 32. The third water outlet; 33. The third filter;

[0024] 4. Fourth sedimentation tank; 41. First water tank; 411. Fourth water inlet; 412. Fourth water outlet; 413. Fourth filter; 42. Second water tank; 421. Drainage outlet;

[0025] 5. Water pump;

[0026] 6. connecting pipe; 61. first end; 62. second end;

[0027] 7. Water inlet pipe. DETAILED DESCRIPTION

[0028] 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.

[0029] like Figure 1 and Figure 2As shown, the sewage circulation system 100 for coal mine drilling construction of the embodiment of the utility model adopts a drilling rig for coal mine drilling construction, the drilling rig includes a drill rod, and the sewage circulation system 100 for coal mine drilling construction includes a first sedimentation tank 1, a fourth sedimentation tank 4 and a water pump 5, the first sedimentation tank 1 has a first water outlet 11, and a first filter screen 12 is provided at the first water outlet 11; the fourth sedimentation tank 4 includes a first water tank 41 and a second water tank 42, the first water tank 41 has a fourth water inlet 411 and a fourth water outlet 412, the fourth water inlet 411 is connected to the first water outlet 11, and the second water tank 42 is connected to the fourth water outlet 412; a fourth filter screen 413 is provided at the fourth water outlet 412, and the aperture of the fourth filter screen 413 is smaller than the aperture of the first filter screen 12; the water inlet end of the water pump 5 is connected to the second water tank 42, and the drainage end of the water pump 5 is connected to the drill rod.

[0030] In the sewage circulation system 100 for coal mine drilling construction of the embodiment of the utility model, the sewage generated during the coal mine drilling construction first enters the first sedimentation tank 1, and the sewage enters the first water tank 41 of the fourth sedimentation tank 4 after being filtered by the first filter screen 12. The impurity particles that cannot pass through the first filter screen 12 are isolated in the first sedimentation tank 1 and precipitated at the bottom of the first sedimentation tank 1; the sewage in the first water tank 41 enters the second water tank 42 after being filtered by the fourth filter screen 413, and the impurity particles that cannot pass through the fourth filter screen 413 are isolated in the first water tank 41 and precipitated at the bottom of the first water tank 41. The sewage can be treated after being filtered by the fourth filter screen 413, and the treated sewage enters the second water tank 42 for storage; then, the treated sewage in the second water tank 42 is re-transported to the drill rod by the water pump 5 for use in the coal mine drilling construction, thereby realizing the recycling of sewage, reducing the working pressure of the coal mine sewage treatment system, and reducing the waste of water resources.

[0031] In addition, the pore size of the fourth filter screen 413 is smaller than the pore size of the first filter screen 12, which can achieve secondary filtration of sewage, thereby improving the sewage treatment effect.

[0032] In some embodiments, the first water outlet 11 is disposed near the upper portion of the first sedimentation tank 1 ; and / or the fourth water outlet 412 is disposed near the upper portion of the fourth sedimentation tank 4 .

[0033] After sedimentation, the sewage is divided into an upper clear liquid and impurity particles at the bottom; by arranging the first water outlet 11 close to the upper part of the first sedimentation tank 1, the upper clear liquid can enter the next process through the first filter screen 12, and at the same time, sufficient space is reserved at the bottom of the first sedimentation tank 1 to accommodate the precipitated impurity particles, thereby reducing the probability of the first filter screen 12 contacting the impurity particles precipitated at the bottom of the first sedimentation tank 1, thereby reducing the probability of the first filter screen 12 being blocked; similarly, by arranging the fourth water outlet 412 close to the upper part of the fourth sedimentation tank 4, the upper clear liquid in the first water tank 41 can enter the second water tank 42 for storage through the fourth filter screen 413, and at the same time, sufficient space is reserved at the bottom of the first water tank 41 to accommodate the precipitated impurity particles, thereby reducing the probability of the fourth filter screen 413 being blocked, thereby improving the sewage treatment efficiency.

[0034] Alternatively, if Figure 1 and Figure 2 As shown, a partition is provided in the fourth sedimentation tank 4, which divides the internal cavity of the fourth sedimentation tank 4 into a first water tank 41 and a second water tank 42. A fourth water outlet 412 is provided on the partition, and a fourth filter screen 413 is installed on the partition by bolts. The upper clear liquid in the first water tank 41 can enter the second water tank 42 through the fourth water outlet 412; in addition, a drain outlet 421 is provided on the side wall of the second water tank 42 away from the first water tank 41, and the water inlet end of the water pump 5 is connected to the drain outlet 421.

[0035] In some embodiments, the sewage circulation system 100 for coal mine drilling construction also includes a second sedimentation tank 2, the second sedimentation tank 2 has a second water inlet 21 and a second water outlet 22, the second water inlet 21 is connected to the first water outlet 11, and the second water outlet 22 is connected to the fourth water inlet 411; a second filter screen 23 is provided at the second water outlet 22, and the aperture of the second filter screen 23 is smaller than the aperture of the first filter screen 12 and larger than the aperture of the fourth filter screen 413.

[0036] By setting up the second sedimentation tank 2, and the pore size of the second filter 23 is between the pore size of the first filter 12 and the pore size of the fourth filter 413, the sewage flows through the first sedimentation tank 1, the second sedimentation tank 2 and the fourth sedimentation tank 4 in sequence, and three-level filtration of the sewage can be achieved according to the particle size of the impurity particles in the sewage, thereby improving the filtration efficiency.

[0037] In some embodiments, the second water outlet 22 is disposed near the upper portion of the second sedimentation tank 2 .

[0038] The impurity particles that cannot pass through the second filter screen 23 are precipitated in the second sedimentation tank 2. Through the above arrangement, the upper clear liquid in the second sedimentation tank 2 can pass through the second filter screen 23 to enter the next process. At the same time, sufficient space is reserved at the bottom of the second sedimentation tank 2 to accommodate the precipitated impurity particles, thereby reducing the probability of clogging of the second filter screen 23.

[0039] In some embodiments, the sewage circulation system 100 for coal mine drilling construction also includes a third sedimentation tank 3, the third sedimentation tank 3 has a third water inlet 31 and a third water outlet 32, the third water inlet 31 is connected to the second water outlet 22, and the third water outlet 32 ​​is connected to the fourth water inlet 411; a third filter screen 33 is provided at the third water outlet 32, and the aperture of the third filter screen 33 is smaller than the aperture of the second filter screen 23 and larger than the aperture of the fourth filter screen 413.

[0040] By providing the third sedimentation tank 3, the sewage flows through the first sedimentation tank 1, the second sedimentation tank 2, the third sedimentation tank 3 and the fourth sedimentation tank 4 in sequence, so that four-stage filtration of the sewage can be achieved, thereby further improving the filtration efficiency.

[0041] Optionally, the filtering accuracy of the first filter screen 12 is 2.5 mm, the filtering accuracy of the second filter screen 23 is 1.5 mm, the filtering accuracy of the third filter screen 33 is 0.5 mm, and the filtering accuracy of the fourth filter screen 413 is 0.2 mm.

[0042] In some embodiments, the third water outlet 32 ​​is disposed near the upper portion of the third sedimentation tank 3 .

[0043] The sewage entering the third sedimentation tank 3 from the second sedimentation tank 2 is precipitated in the third sedimentation tank 3. Through the above arrangement, the upper clear liquid in the third sedimentation tank 3 can pass through the third filter screen 33 and enter the first water tank 41 of the fourth sedimentation tank. At the same time, sufficient space is reserved at the bottom of the third sedimentation tank 3 to accommodate the precipitated impurity particles, thereby reducing the probability of clogging of the third filter screen 33.

[0044] In some embodiments, the sewage circulation system 100 for coal mine drilling construction also includes a connecting pipe 6 , which includes a first end 61 and a second end 62 , the first end 61 is connected to the first water outlet 11 , and the second end 62 is connected to the second water inlet 21 .

[0045] The first sedimentation tank 1 and the second sedimentation tank 2 are connected via a connecting pipe 6 , which is more conducive to arranging the relative positions of the first sedimentation tank 1 and the second sedimentation tank 2 , thereby improving the installation convenience of the sewage circulation system 100 .

[0046] Optionally, the second sedimentation tank 2 and the third sedimentation tank 3 , and the third sedimentation tank 3 and the fourth sedimentation tank 4 are connected via a connecting pipe 6 .

[0047] In some embodiments, the inner diameter of the first end 61 is greater than the inner diameter of the second end 62 , and the projection of the first filter screen 12 on the end surface of the first end 61 covers the end surface of the first end 61 .

[0048] Through the above arrangement, the size of the first filter screen 12 matches the size of the first end 61, the inner diameter of the first end 61 is larger than the inner diameter of the second end 62, and the filtering area of ​​the first filter screen 12 is larger, thereby improving the filtering efficiency of the sewage in the first sedimentation tank 1 and reducing the probability of clogging of the first filter screen 12.

[0049] Alternatively, if Figure 1 and Figure 2 As shown, the connecting pipe 6 includes a first section and a second section connected to each other, the first section is conical, the second section is cylindrical, the first end 61 is the end of the first section away from the second section, and the second end 62 is the end of the second section away from the first section; the first filter screen 12 is circular, the diameter of the first filter screen 12 is larger than the inner diameter of the first end 61, the first filter screen 12 is detachably mounted on the inner wall of the first sedimentation tank 1 by bolts, and is aligned with the first water outlet 11, so that the sewage filtered by the first filter screen 12 can directly enter the connecting pipe 6.

[0050] In some embodiments, Figure 2 and Figure 3 As shown, the first sedimentation tank 1 has a sedimentation area 13 and a water inlet area 14; the sewage circulation system 100 also includes a water inlet pipe 7 for introducing sewage, the water inlet pipe 7 is arranged above the water inlet area 14, and a flow equalizer plate 15 is arranged in the water inlet area 14, and the flow equalizer plate 15 has a plurality of flow equalizer holes 151, and the sewage enters the sedimentation area 13 through the flow equalizer holes 151.

[0051] There are impurity particles deposited at the bottom of the sedimentation area 13. By setting up the flow equalizer 15, the sewage needs to pass through the flow equalizer 15 to enter the sedimentation area 13. The flow equalizer holes 151 on the flow equalizer 15 can break up the water flow, reduce the impact force of the water flow, and prevent the water flow from directly impacting the impurity particles deposited at the bottom, causing the impurity particles to be re-mixed with the sewage.

[0052] It is understandable that the sewage generated by the coal mine drilling construction enters the first sedimentation tank 1 through the water inlet pipe 7.

[0053] In some embodiments, the water pump 5 is a high-pressure water pump.

[0054] By pumping the treated sewage in the second water tank 42 into the drill rod through a high-pressure water pump, the water pressure entering the drill rod can be increased, which is more conducive to cleaning and cooling the drill rod.

[0055] Although the embodiments of the present invention have been shown and described above, 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 sewage circulation system (100) for coal mine drilling construction, characterized in that: The coal mine drilling construction is carried out using a drilling rig, the drilling rig includes a drill rod, and the sewage circulation system (100) for coal mine drilling construction includes: A first sedimentation tank (1), the first sedimentation tank (1) having a first water outlet (11), and a first filter screen (12) being provided at the first water outlet (11); a fourth sedimentation tank (4), the fourth sedimentation tank (4) comprising a first water tank (41) and a second water tank (42), the first water tank (41) having a fourth water inlet (411) and a fourth water outlet (412), the fourth water inlet (411) being connected to the first water outlet (11), and the second water tank (42) being connected to the fourth water outlet (412); A fourth filter screen (413) is provided at the fourth water outlet (412), and the aperture of the fourth filter screen (413) is smaller than the aperture of the first filter screen (12); A water pump (5), wherein the water inlet end of the water pump (5) is connected to the second water tank (42), and the water outlet end of the water pump (5) is connected to the drill pipe.

2. The sewage circulation system (100) for coal mine drilling construction according to claim 1, characterized in that: The first water outlet (11) is arranged near the upper part of the first sedimentation tank (1); and / or The fourth water outlet (412) is arranged close to the upper part of the fourth sedimentation tank (4).

3. The sewage circulation system (100) for coal mine drilling construction according to claim 1 is characterized in that: It also comprises a second sedimentation tank (2), the second sedimentation tank (2) having a second water inlet (21) and a second water outlet (22), the second water inlet (21) being connected to the first water outlet (11), and the second water outlet (22) being connected to the fourth water inlet (411); A second filter screen (23) is provided at the second water outlet (22); the aperture of the second filter screen (23) is smaller than the aperture of the first filter screen (12) and larger than the aperture of the fourth filter screen (413).

4. The sewage circulation system (100) for coal mine drilling construction according to claim 3 is characterized in that: The second water outlet (22) is arranged close to the upper part of the second sedimentation tank (2).

5. The sewage circulation system (100) for coal mine drilling construction according to claim 3 is characterized in that: It also comprises a third sedimentation tank (3), the third sedimentation tank (3) having a third water inlet (31) and a third water outlet (32), the third water inlet (31) being connected to the second water outlet (22), and the third water outlet (32) being connected to the fourth water inlet (411); A third filter screen (33) is provided at the third water outlet (32); the aperture of the third filter screen (33) is smaller than the aperture of the second filter screen (23) and larger than the aperture of the fourth filter screen (413).

6. The sewage circulation system (100) for coal mine drilling construction according to claim 5, characterized in that: The third water outlet (32) is arranged close to the upper part of the third sedimentation tank (3).

7. The sewage circulation system (100) for coal mine drilling construction according to claim 3 is characterized in that: It also comprises a connecting pipe (6), the connecting pipe (6) comprising a first end (61) and a second end (62), the first end (61) being connected to the first water outlet (11), and the second end (62) being connected to the second water inlet (21).

8. The sewage circulation system (100) for coal mine drilling construction according to claim 7, characterized in that: The inner diameter of the first end (61) is greater than the inner diameter of the second end (62), and the projection of the first filter screen (12) on the end surface of the first end (61) covers the end surface of the first end (61).

9. The sewage circulation system (100) for coal mine drilling construction according to any one of claims 1 to 8, characterized in that: The first sedimentation tank (1) comprises a sedimentation area (13) and a water inlet area (14); The sewage circulation system (100) further comprises a water inlet pipe (7) for introducing sewage, the water inlet pipe being arranged above the water inlet area (14), a flow equalizer plate (15) being arranged in the water inlet area (14), the flow equalizer plate (15) having a plurality of flow equalizer holes (151), and the sewage entering the sedimentation area (13) through the flow equalizer holes (151).

10. The sewage circulation system (100) for coal mine drilling construction according to any one of claims 1 to 8, characterized in that: The water pump (5) is a high-pressure water pump.

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