Sludge prevention device for brine mining well

Abstract

The utility model relates to a silt prevention device for a brine well, which comprises a protection piece (1), the protection piece is formed by connecting a plurality of protection cylinders (2), each protection cylinder comprises an upper support ring (21), a lower support ring (22), a connecting rod (23) and a filter screen cylinder (24), the upper support ring (21) is provided with a first connecting piece (211), the lower support ring is provided with a second connecting piece (221), and the connecting rod is respectively and fixedly connected with the upper support ring and the lower support ring. A plurality of connecting rods are arranged, and the plurality of connecting rods are annularly and uniformly distributed to form a cylindrical supporting structure. The filter screen cylinder sleeves the periphery of the supporting structure, two ends of the filter screen cylinder are fixedly connected with the upper supporting ring and the lower supporting ring respectively, and the inner side of the filter screen cylinder is fixedly connected with the connecting rod. Every two adjacent protective cylinders on the protective piece are fixedly connected through cooperation of the first connecting piece and the second connecting piece. The device can prevent the well wall of the brine well from collapsing and sediment deposition.

Description

Technical Field

[0001] The utility model relates to a brine mining well anti-silting device, and more specifically to a structure of the brine mining well anti-silting device. Background Art

[0002] Salt lake brine is rich in minerals such as sodium chloride, potassium chloride and magnesium chloride, and is the main raw material for the production of potassium, magnesium and lithium. The existing brine collection methods mainly include well mining and channel mining. Well mining is to dig a brine well in the solution mining area and pump out the brine in the brine well through a brine pump. During the well mining process, when brine seeps out of the salt mine layer, it will bring out the silt in the salt mine layer. The silt is deposited in the brine well, causing the well depth to become shallower. In severe cases, the silt will submerge the brine pump, causing damage to the brine pump and affecting production.

[0003] In addition, after crystals are produced on the brine pump, fresh water is needed to be injected into the crystallization site using a fresh water pipe to dissolve the crystals by flushing with fresh water. Due to the long-term imbalance of mining and replenishment in the salt mine layer, geological instability occurs. The flushing fresh water seeps into the well wall, which will affect the geology of the salt mine layer around the well, aggravate the collapse of the well wall, and even cause the well platform to collapse, accelerating the siltation rate in the brine well, which will not only affect normal production, but also cause safety accidents.

[0004] The existing method usually requires that the brine well be stopped for a period of time to conduct a well penetration operation to salvage and clean out the salt mud deposited in the brine well, which is time-consuming and labor-intensive and affects production.

[0005] After sampling and research, it was found that more than 90% of the sediment in the brine wells had particles ≥ 2mm in size, and more than 95% of the insoluble matter in the brine had particles ≤ 2mm in size. It can be seen that the siltation in the brine wells is mainly caused by particles ≥ 2mm in size.

[0006] The utility model aims to solve the problems of sedimentation in the existing brine mining wells and well wall collapse, which affect normal production when the brine is mined in the existing brine mining wells. Utility Model Content

[0007] In order to solve the above problems, the utility model provides a brine well anti-siltation device, including a protective member 1, which is formed by connecting a plurality of protective cylinders 2, and the protective cylinder 2 includes an upper support ring 21, a lower support ring 22, a connecting rod 23 and a filter screen cylinder 24. The upper support ring 21 is located at the upper part of the protective cylinder 2, and a first connecting member 211 is provided on the upper support ring 21. The lower support ring 22 is located at the lower part of the protective cylinder 2, and a second connecting member 221 cooperating with the first connecting member 211 is provided on the lower support ring 22, and the connecting rod 23 is fixedly connected to the upper support ring 21 and the lower support ring 22 respectively. A plurality of connecting rods 23 are provided, and the plurality of connecting rods 23 are evenly distributed in an annular shape to form a cylindrical support structure. The filter screen cylinder 24 is cylindrical and is sleeved on the outer periphery of the support structure, and is fixedly connected to the upper support ring 21 at the top, fixedly connected to the lower support ring 22 at the bottom, and fixedly connected to the connecting rod 23 on the inside. Two adjacent protection tubes 2 on the protection member 1 are fixedly connected by the cooperation of the first connection member 211 and the second connection member 221 .

[0008] When the utility model is used, a protective tube 2 of a suitable diameter is set according to the diameter of the brine mining well, and according to the depth of the brine mining well, a suitable number of protective tubes 2 are selected to connect into a protective member 1, so that the height of the protective member 1 corresponds to the depth of the brine mining well, and the protective member 1 is inserted into the brine mining well, so that the outer wall of the protective member 1 fits with the well wall of the brine mining well to support the well wall of the brine mining well, and the brine flowing out of the salt mine layer passes through the filter mesh tube 24 and flows into the brine mining well, and the mud and sand in the brine are blocked by the filter mesh tube 24 and remain in the salt mine layer outside the filter mesh tube 24.

[0009] The utility model is formed by connecting a plurality of protective tubes 2 by setting a protective member 1. An appropriate number of protective tubes 2 can be selected for connection according to the depth of the brine mining well to form a protective member 1 of appropriate height, so that it can be used in brine mining wells of different depths. The connecting rod 23 and the filter screen tube 24 on the protective tube 2 can support and protect the wall of the brine mining well to prevent the brine mining well wall from collapsing, causing accidents and affecting production. The brine flowing out of the salt mine layer can be filtered by the filter screen tube 24, so that the brine passes through the filter screen tube 24 and flows into the brine mining well. The silt in the brine is blocked by the filter screen tube 24 and remains in the salt mine layer on the periphery of the filter screen tube 24 to prevent silt accumulation in the brine mining well. The utility model can solve the problems of silt accumulation in the brine mining well and the collapse of the wall of the brine mining well when the existing brine mining well is used for brine mining, which affects normal production.

[0010] Preferably, it also includes a protective base 3, which includes a support bottom ring 31 and a filter screen plate 33. The support bottom ring 31 is provided with a third connecting member 34 that cooperates with the second connecting member 221. The support bottom ring 31 is provided with a support bottom plate 32 inside, and the support bottom plate 32 is provided with a plurality of evenly distributed through holes 321. The filter screen plate 33 is fixedly arranged on the bottom surface of the support bottom plate 32, and the outer peripheral edge is fixedly connected to the support bottom ring 31. The diameter of the through hole 321 is larger than the diameter of the mesh of the filter screen plate 33. The protective base 3 is fixedly arranged on the bottom of the protective member 1 through the cooperation of the third connecting member 34 and the second connecting member 221.

[0011] By providing a protective base 3, the protective base 3 is arranged at the bottom of the protective member 1, and the brine seeping out from the bottom of the brine well can be filtered through the filter screen plate 33 on the protective base 3 to prevent the mud and sand entrained in the brine from being brought into the brine well. A support bottom plate 32 is arranged on the support bottom ring 31 to support the filter screen plate 33, increase the strength of the filter screen plate 33, and prevent the filter screen plate 33 from being impacted and damaged by the mud and sand entrained in the brine seeping out from the bottom of the brine well.

[0012] Preferably, the first connecting member 211 is cylindrical, the outer diameter of the first connecting member 211 is smaller than the outer diameter of the upper support ring 21, the inner diameter of the first connecting member 211 is larger than the inner diameter of the upper support ring 21, and an external thread is provided on the outer side surface of the first connecting member 211. The second connecting member 221 is cylindrical, the inner diameter of the second connecting member 221 is the same as the outer diameter of the first connecting member 211, the outer diameter of the second connecting member 221 is the same as the outer diameter of the lower support ring 22, and an internal thread matching the external thread is provided on the inner side surface of the second connecting member 221. The third connecting member 34 has the same structure as the first connecting member 211.

[0013] Therefore, the first connecting member 211 on one protective tube 2 and the second connecting member 221 on another protective tube 2 can be connected by threads, so that the two protective tubes 2 are fixedly connected, and the installation is convenient. The third connecting member 34 is arranged to have the same structure as the first connecting member 211, so that the protective base 3 can be fixedly set on the bottom of the protective member 1 through the cooperation of the third connecting member 34 and the second connecting member 221.

[0014] Preferably, it also includes a fastening bolt 223, a first fixing hole 212 is provided on the first connecting member 211, and a second fixing hole 222 is provided on the second connecting member 221 at a position corresponding to the first fixing hole 212, and the fastening bolt 223 passes through the first fixing hole 212 and the second fixing hole 222 to fix the first connecting member 211 and the second connecting member 221 connected to each other.

[0015] By fastening the first connecting member 211 and the second connecting member 221 connected to each other with the bolts 223, the connection between the first connecting member 211 and the second connecting member 221 can be firmly connected, the strength of the protective member 1 can be increased, and the adjacent protective tubes 2 connected to each other can be prevented from rotating relative to each other, resulting in loose connection.

[0016] Preferably, the protective tube 2 further comprises a plurality of reinforcing rings 25, which are sleeved inside the supporting structure, and the outer ring surface of the reinforcing ring 25 is fixedly connected to each connecting rod 23, and the plurality of reinforcing rings 25 are arranged at equal intervals in the vertical direction. The plurality of reinforcing rings 25 are arranged on the protective tube 2 to increase the strength of the supporting rod and the filter screen tube 24, increase the supporting strength of the brine well wall, prevent the brine well wall from detaching, and prevent the filter screen tube 24 from being damaged by the impact of mud and sand entrained in the brine.

[0017] Preferably, the diameter of the mesh holes on the filter screen cylinder 24 and the filter screen plate 33 is 2 mm. The diameter of the mesh holes on the filter screen cylinder 24 and the filter screen plate 33 is set to 2 mm, so that the brine can filter the sediment with a particle size of ≥2 mm seeping out of the salt mine layer, and prevent the sediment with a particle size of ≥2 mm from entering the brine well and causing siltation in the brine well.

[0018] Preferably, the filter screen cylinder 24 and the filter screen plate 33 are made of metal.

[0019] Preferably, two lifting rings 26 are provided on the protective tube 2, and the two lifting rings 26 are relatively arranged on the inner side of the upper support ring 21 of the protective tube 2. The lifting rings 26 are provided on the protective tube 2 to facilitate the docking installation of the protective tube 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 .Schematic diagram of the overall structure of the protective part;

[0021] Figure 2 .Schematic diagram of the overall structure of the protective tube;

[0022] Figure 3 .Schematic diagram of the protective tube structure from a top view;

[0023] Figure 4 . Figure 3 Schematic diagram of the AA section structure;

[0024] Figure 5 .Schematic diagram of the overall structure of the protective base;

[0025] Figure 6 .Schematic diagram of the protective base structure from a top view;

[0026] Figure 7 . Schematic diagram of protective parts in use.

[0027] In the figure, 1. protective part, 2. protective cylinder, 21. upper support ring, 211. first connecting part, 212. first fixing hole, 22. lower support ring, 221. second connecting part, 222. second fixing hole, 223. fastening bolt, 23. connecting rod, 24. filter cylinder, 25. reinforcement ring, 26. lifting ring, 3. protective base, 31. support bottom ring, 32. support bottom plate, 321. through hole, 33. filter plate, 34. third connecting part, 4. salt mine layer, 41. brine mining well. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] like Figure 1 As shown, the brine well anti-siltation device includes a protective member 1, which is cylindrical and is formed by connecting a plurality of protective tubes 2 and a protective base 3, and the protective base 3 is installed at the bottom of the protective member 1.

[0030] like Figure 2 , Figure 3 and Figure 4 As shown, the protective cylinder 2 includes an upper support ring 21, a lower support ring 22, a connecting rod 23, a reinforcing rod and a filter screen cylinder 24. The upper support ring 21 is located at the upper part of the protective cylinder 2, and a first connecting member 211 is provided on the upper support ring 21. Two lifting rings 26 are provided on the inner side wall of the upper support ring 21, and the two lifting rings 26 are relatively arranged on the inner side of the upper support ring 21 of the protective cylinder 2. The provision of the lifting rings 26 can facilitate the docking installation of the protective cylinder 2.

[0031] The lower support ring 22 is located at the lower part of the protective tube 2. The lower support ring 22 is provided with a second connecting member 221 that matches the first connecting member 211. Two adjacent protective tubes 2 on the protective member 1 are fixedly connected by the first connecting member 211 and the second connecting member 221.

[0032] The connecting rods 23 are fixedly connected to the upper support ring 21 and the lower support ring 22 respectively. A plurality of connecting rods 23 are provided, and the plurality of connecting rods 23 are evenly distributed in a ring shape to form a cylindrical support structure.

[0033] The filter screen cylinder 24 is cylindrical, sleeved on the outer periphery of the support structure, fixedly connected to the upper support ring 21 at the top, fixedly connected to the lower support ring 22 at the bottom, and fixedly connected to the connecting rod 23 at the inside. The filter screen cylinder 24 is made of metal.

[0034] The diameter of the mesh holes on the filter screen cylinder 24 is 2 mm. The diameter of the mesh holes on the filter screen cylinder 24 is set to 2 mm, so that the brine can filter the sediment with a particle size of ≥ 2 mm seeping out of the salt mine layer, and prevent the sediment with a particle size of ≥ 2 mm from entering the brine well and causing siltation in the brine well.

[0035] The reinforcement ring 25 is sleeved inside the support structure, and the outer ring surface of the reinforcement ring 25 is fixedly connected to each connecting rod 23. A plurality of reinforcement rings 25 are provided, and the plurality of reinforcement rings 25 are arranged at equal intervals in the vertical direction. The plurality of reinforcement rings 25 are arranged on the protective cylinder 2, which can increase the strength of the support rod and the filter screen cylinder 24, increase the support strength of the brine well wall, prevent the brine well wall from detaching, and prevent the filter screen cylinder 24 from being damaged by the impact of mud and sand entrained in the brine.

[0036] When in use, the protective member 1 is inserted into the brine mining well, and the outer wall of the protective member 1 fits against the wall of the brine mining well to support the wall of the brine mining well. The brine flowing out of the salt mine layer passes through the filter mesh cylinder 24 and flows into the brine mining well. The mud and sand in the brine are blocked by the filter mesh cylinder 24 and remain in the salt mine layer outside the filter mesh cylinder 24, thereby preventing mud and sand from accumulating in the brine mining well.

[0037] The first connecting member 211 is cylindrical, the outer diameter of the first connecting member 211 is smaller than the outer diameter of the upper support ring 21, the inner diameter of the first connecting member 211 is larger than the inner diameter of the upper support ring 21, and an external thread is provided on the outer surface of the first connecting member 211. The first connecting member 211 is provided with a first fixing hole 212.

[0038] The second connecting member 221 is cylindrical, and the inner diameter of the second connecting member 221 is the same as the outer diameter of the first connecting member 211, and the outer diameter of the second connecting member 221 is the same as the outer diameter of the lower support ring 22. An inner thread matching the outer thread is provided on the inner side surface of the second connecting member 221. A second fixing hole 222 is provided on the second connecting member 221 at a position corresponding to the first fixing hole 212.

[0039] The first connecting member 211 and the second connecting member 221 can be connected by threads, so that the two protective tubes 2 can be fixedly connected. The fastening bolt 223 passes through the first fixing hole 212 and the second fixing hole 222 to fix the first connecting member 211 and the second connecting member 221 connected to each other, which can increase the firmness of the connection between the first connecting member 211 and the second connecting member 221, increase the strength of the protective member 1, and prevent the adjacent protective tubes 2 connected to each other from rotating relative to each other, resulting in loose connection.

[0040] like Figure 5 and Figure 6 As shown, the protective base 3 includes a supporting bottom ring 31 and a filter screen 33. The supporting bottom ring 31 is provided with a third connecting member 34 that cooperates with the second connecting member 221. A supporting bottom plate 32 is provided inside the supporting bottom ring 31. The supporting bottom plate 32 is provided with a plurality of evenly distributed through holes 321. The diameter of the through holes 321 is larger than the diameter of the mesh of the filter screen 33.

[0041] The filter screen plate 33 is fixedly disposed on the bottom surface of the support bottom plate 32 , and the outer peripheral edge is fixedly connected to the support bottom ring 31 . The filter screen plate 33 is made of metal.

[0042] The diameter of the mesh holes on the filter screen plate 33 is 2 mm. The diameter of the mesh holes on the filter screen plate 33 is set to 2 mm, so that the brine can filter the sediment with a particle size of ≥2 mm seeping out of the salt mine layer, and prevent the sediment with a particle size of ≥2 mm from entering the brine well and causing siltation in the brine well.

[0043] The protective base 3 is fixedly arranged at the bottom of the protective member 1 by the cooperation of the third connecting member 34 and the second connecting member 221. The third connecting member 34 has the same structure as the first connecting member 211, and the third connecting member 34 and the second connecting member 221 can be connected by threads, so that the protective base 3 is fixedly arranged at the bottom of the protective member 1 by the cooperation of the third connecting member 34 and the second connecting member 221.

[0044] A protective base 3 is provided at the bottom of the protective member 1, and the brine seeping out from the bottom of the brine well can be filtered through the filter screen 33 on the protective base 3 to prevent the mud and sand carried in the brine from being brought into the brine well. The filter screen 33 can be supported by the support bottom plate 32 to increase the strength of the filter screen 33 and prevent the filter screen 33 from being damaged by the mud and sand carried in the brine seeping out from the bottom of the brine well.

[0045] like Figure 7 As shown, when the utility model is used, a protective tube 2 of a suitable diameter is set according to the diameter of the brine mining well. According to the depth of the brine mining well, a suitable number of protective tubes 2 are selected to connect into a protective member 1, so that the height of the protective member 1 corresponds to the depth of the brine mining well. The protective member 1 is inserted into the brine mining well, so that the outer wall of the protective member 1 fits with the well wall of the brine mining well to support the well wall of the brine mining well. The brine flowing out of the salt mine layer passes through the filter mesh tube 24 and flows into the brine mining well. The mud and sand in the brine are blocked by the filter mesh tube 24 and remain in the salt mine layer around the filter mesh tube 24.

[0046] The utility model is formed by connecting a plurality of protective tubes 2 by setting a protective member 1. An appropriate number of protective tubes 2 can be selected for connection according to the depth of the brine mining well to form a protective member 1 of appropriate height, so that it can be used in brine mining wells of different depths. The connecting rod 23 and the filter screen tube 24 on the protective tube 2 can support and protect the wall of the brine mining well to prevent the wall of the brine mining well from collapsing, causing accidents and affecting production. The brine flowing out of the salt mine layer can be filtered by the filter screen tube 24, and the silt in the brine can be placed in the salt mine layer outside the filter screen tube 24 to prevent silt accumulation in the brine mining well. This solves the problems of silt accumulation in the brine mining well and the collapse of the wall of the brine mining well when the brine is mined in the existing brine mining well.

[0047] A protective base 3 is provided, and the protective base 3 is provided at the bottom of the protective member 1. The brine seeping out from the bottom of the brine mining well can be filtered through the filter screen plate 33 on the protective base 3 to prevent the mud and sand carried in the brine from being brought into the brine mining well. A supporting bottom plate 32 is provided on the supporting bottom ring 31 to support the filter screen plate 33, increase the strength of the filter screen plate 33, and prevent the filter screen plate 33 from being impacted and damaged by the mud and sand carried in the brine seeping out from the bottom of the brine mining well.

[0048] The first connecting member 211 and the second connecting member 221 on the two protective tubes 2 are connected by threads, so that the two protective tubes 2 are fixedly connected, and the installation is convenient. The third connecting member 34 is arranged to have the same structure as the first connecting member 211, so that the protective base 3 can be fixedly arranged on the bottom of the protective member 1 through the cooperation between the third connecting member 34 and the second connecting member 221. The fastening bolt 223 is arranged to fix the first connecting member 211 and the second connecting member 221 connected to each other, which can increase the firmness of the connection between the first connecting member 211 and the second connecting member 221, increase the strength of the protective member 1, and prevent the adjacent protective tubes 2 connected to each other from being loosened.

[0049] A plurality of reinforcing rings 25 are provided on the protective cylinder 2 to increase the strength of the support rod and the filter cylinder 24, increase the support strength of the brine mining well wall, prevent the brine mining well wall from detaching, and prevent the filter cylinder 24 from being damaged by the impact of the mud and sand carried by the brine. The diameter of the mesh on the filter cylinder 24 and the filter plate 33 is set to 2mm, so that the brine can filter the mud and sand with a particle size of ≥2mm that seeps out of the salt mine layer, and prevent the mud and sand with a particle size of ≥2mm from entering the brine mining well and causing siltation in the brine mining well.

[0050] It should be noted that the above-mentioned embodiments illustrate rather than limit the invention and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims.

Claims

1. A brine well anti-siltation device, characterized in that: The protective member (1) is formed by connecting a plurality of protective tubes (2). The protective cylinder (2) comprises an upper support ring (21), a lower support ring (22), a connecting rod (23) and a filter screen cylinder (24). The upper support ring (21) is located at the upper part of the protective tube (2), and a first connecting piece (211) is provided on the upper support ring (21); The lower support ring (22) is located at the lower part of the protective tube (2), and a second connecting piece (221) matching with the first connecting piece (211) is provided on the lower support ring (22); The connecting rod (23) is fixedly connected to the upper support ring (21) and the lower support ring (22) respectively; The connecting rod (23) is provided with a plurality of The plurality of connecting rods (23) are evenly distributed in a ring shape to form a cylindrical supporting structure; The filter screen cylinder (24) is cylindrical and sleeved on the outer periphery of the support structure, with the top fixedly connected to the upper support ring (21), the bottom fixedly connected to the lower support ring (22), and the inner side fixedly connected to the connecting rod (23); Two adjacent protective tubes (2) on the protective member (1) are fixedly connected by the cooperation of a first connecting member (211) and a second connecting member (221).

2. The brine well anti-siltation device according to claim 1, characterized in that: Also includes a protective base (3), The protective base (3) comprises a supporting bottom ring (31) and a filter screen plate (33). The support bottom ring (31) is provided with a third connecting piece (34) matched with the second connecting piece (221); a support bottom plate (32) is provided inside the support bottom ring (31); and a plurality of evenly distributed through holes (321) are provided on the support bottom plate (32); The filter screen plate (33) is fixedly arranged on the bottom surface of the supporting bottom plate (32), and the outer peripheral edge is fixedly connected to the supporting bottom ring (31); The diameter of the through hole (321) is greater than the diameter of the mesh of the filter screen (33); The protective base (3) is fixedly arranged on the bottom of the protective member (1) through the cooperation of the third connecting member (34) and the second connecting member (221).

3. The anti-silting device for brine wells according to claim 2, characterized in that: The first connecting member (211) is cylindrical, the outer diameter of the first connecting member (211) is smaller than the outer diameter of the upper support ring (21), the inner diameter of the first connecting member (211) is larger than the inner diameter of the upper support ring (21), and an external thread is provided on the outer surface of the first connecting member (211); The second connecting member (221) is cylindrical, the inner diameter of the second connecting member (221) is the same as the outer diameter of the first connecting member (211), the outer diameter of the second connecting member (221) is the same as the outer diameter of the lower support ring (22), and an inner side surface of the second connecting member (221) is provided with an inner thread matching the outer thread; The third connecting member (34) has the same structure as the first connecting member (211).

4. The anti-siltation device for brine wells according to claim 3, characterized in that: Also includes a fastening bolt (223), The first connecting member (211) is provided with a first fixing hole (212), and the second connecting member (221) is provided with a second fixing hole (222) at a position corresponding to the first fixing hole (212); The fastening bolt (223) passes through the first fixing hole (212) and the second fixing hole (222) to fix the first connecting member (211) and the second connecting member (221) which are connected to each other.

5. The anti-siltation device for brine wells according to claim 4, characterized in that: The protective tube (2) further comprises a plurality of reinforcement rings (25). The reinforcement ring (25) is sleeved inside the support structure, and the outer ring surface of the reinforcement ring (25) is fixedly connected to each connecting rod (23); The plurality of reinforcement rings (25) are arranged at equal intervals in the vertical direction.

6. The anti-siltation device for brine wells according to claim 5, characterized in that: The diameter of the mesh holes on the filter screen cylinder (24) and the filter screen plate (33) is 2 mm.

7. The anti-siltation device for brine wells according to claim 6, characterized in that: The filter screen cylinder (24) and the filter screen plate (33) are made of metal.

8. The anti-silting device for brine wells according to any one of claims 1 to 7, characterized in that: The protective tube (2) is provided with two lifting rings (26); The two lifting rings (26) are arranged opposite to each other on the inner side of the upper supporting ring (21) of the protective tube (2).

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