Shield mud-water separation single machine equipment
By designing a single-machine shield mud-water separation equipment integrating vibrating screen components, multi-stage grooves and cyclones, the problems of large number of existing equipment, large area and low usage are solved, and the three-stage separation treatment of shield mud-water and the improvement of construction accuracy are achieved.
Patent Information
- Application Number
- CN202422158730.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-09-03
AI Technical Summary
The existing shield sludge treatment equipment is large in number, large in area and low in usage, making it difficult to achieve three-level separation treatment.
A single-machine shield mud-water separation equipment is designed, including vibrating screen components, coarse mud sinks, fine mud sinks, cyclones and valves, and three-stage separation treatment is achieved through multi-stage filtration and cyclone separation.
The three-level separation of shield mud and water was achieved, reducing the number of equipment and footprint, and improving construction accuracy and equipment utilization rate.
Smart Images
Figure CN222943108U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of shield mud treatment, in particular to a shield mud-water separation stand-alone device. Background Art
[0002] The slurry shield stabilizes the soil in front of it through mud with adjustable pressure as it cuts the soil in front of it. Because the slurry shield is completely sealed during the entire excavation process, its stability on the bottom layer is better than that of the earth pressure shield. Therefore, the slurry shield is becoming more and more popular due to its better stability and more reliable safety.
[0003] The slurry balance shield uses the cutter head to cut the soil in front. The cut soil is mixed with the excavation mud and transported to the ground mud and water treatment site through the set pipeline. The ground mud and water separation equipment performs multi-stage separation treatment on the shield mud and water.
[0004] Usually, ground mud treatment equipment is mostly single-stage or two-stage treatment equipment connected in series to form a three-stage shield mud and water treatment system. There are many devices, a large area is occupied, and the equipment utilization rate is low. Utility Model Content
[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a single-unit shield mud and water separation device, which can perform three-stage separation treatment on shield mud and water, while reducing the number of devices and the floor space of the device.
[0006] The utility model embodiment provides a shield mud water separation stand-alone device, the shield mud water separation stand-alone device comprises a vibrating screen assembly, a coarse mud water tank, a fine mud water tank, a coarse mud water pipeline, a fine mud water pipeline, a first cyclone and a second cyclone; the vibrating screen assembly has a mud water inlet end and comprises a vibrating first sieve plate, a second sieve plate and a third sieve plate, the aperture of the first sieve plate is smaller than the aperture of the second sieve plate, and the aperture of the second sieve plate is smaller than the aperture of the third sieve plate; the coarse mud water tank is connected to the first cyclone through the coarse mud water pipeline the feed port of the second cyclone; the fine mud water tank is connected to the feed port of the second cyclone through the fine mud water pipeline; the cyclone overflow ports of the first cyclone and the second cyclone are both connected to the fine mud water tank; the mud water inlet end is used to lead to the third sieve plate, the bottom flow port of the first cyclone is used to lead to the second sieve plate, the bottom flow port of the second cyclone is used to lead to the first sieve plate, and the sieve liquid outlet of the vibrating screen assembly is used to connect to the coarse mud water tank; the fine mud water tank is provided with a fine mud water tank overflow port for discharging mud water.
[0007] In some embodiments, the mesh number of the first sieve plate is 220-260 mesh, and the aperture is 0.057 mm-0.07 mm; and\or, the mesh number of the second sieve plate is 30-50 mesh, and the aperture is 0.355 mm-0.6 mm. and\or, the mesh number of the third sieve plate is 10-20 mesh, and the aperture is 2 mm-0.9 mm;
[0008] In some embodiments, it also includes a bypass pipe, a first valve and a second valve; the coarse mud water pipeline is connected to the fine mud water pipeline through the bypass pipe; the first valve is arranged on the fine mud water pipeline and is used to control the on or off of the fine mud water pipeline; the second valve is arranged on the bypass pipe to control the on or off of the bypass pipe; the shield mud and water separation stand-alone equipment has two mud and water treatment modes: in the shield mud and water three-stage separation treatment mode, the first valve is opened and the second valve is closed; in the shield mud and water rapid treatment mode, the first valve is closed and the second valve is opened to allow mud and water from the coarse mud water tank to enter the first cyclone and the second cyclone through the fine mud water pipeline and the coarse mud water pipeline at the same time.
[0009] In some embodiments, the overflow port of the fine mud water tank includes a first overflow port, and the fine mud water tank is provided with a connecting port for connecting with the coarse mud water tank, and the connecting port is lower than the first overflow port; when the mud and water level in the coarse mud water tank is lower than the height of the connecting port, the connecting port is opened; when the mud and water level in the coarse mud water tank is higher than the height of the connecting port, the connecting port is closed.
[0010] In some embodiments, the overflow port of the fine mud water tank also includes a second overflow port that can be opened and closed; the first overflow port can be opened and closed and is higher than the second overflow port; the connecting port is located between the first overflow port and the second overflow port; in the shield mud and water three-stage separation treatment mode, the first overflow port is closed and the second overflow port is opened; in the shield mud and water rapid treatment mode, the first overflow port is opened and the second overflow port is closed.
[0011] In some embodiments, a float device is installed in the coarse mud water tank; the float device includes a float and a limit plate; when the position of the float is lower than the height of the connecting port, the limit plate opens the connecting port; when the position of the float is higher than the height of the connecting port, the limit plate closes the connecting port.
[0012] In some embodiments, the vibrating screen assembly includes a screen box, and the first screen plate, the second screen plate, and the third screen plate are vibrated and disposed in the screen box to transport sand and gravel to a discharge end of the screen box.
[0013] In some embodiments, the first screen plate and the second screen plate are detachably mounted on the screen box.
[0014] In some embodiments, the first sieve plate and the second sieve plate are fastened to the sieve box by bolts; and / or, a plurality of slideways are provided on the sieve box, and the first sieve plate and the second sieve plate are provided with slide rails that slidably cooperate with the slideways.
[0015] In some embodiments, the first valve may be a manual valve, a pneumatic valve or an electromagnetic valve; and / or, the second valve may be a manual valve, a pneumatic valve or an electromagnetic valve.
[0016] Combined with the technical solution, it can be seen that the embodiment provided by the utility model has the following advantages: the shield mud and water separation stand-alone equipment can perform three-stage separation treatment on the shield mud and water, reduce the particle size of the shield mud and water, and improve the accuracy of the shield construction; and the structure of the shield mud and water separation stand-alone equipment is more compact, reducing the footprint of the shield mud and water separation stand-alone equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0018] Figure 1 It is a structural schematic diagram of a single-unit shield mud-water separation device according to an embodiment of the utility model;
[0019] Figure 2 It is a schematic structural diagram of a coarse mud water tank and a fine mud water tank according to an embodiment of the utility model;
[0020] Figure 3 It is a schematic structural diagram of a fine mud water tank according to an embodiment of the utility model.
[0021] Reference numerals:
[0022] Shield mud and water separation single machine equipment 100;
[0023] Vibrating screen assembly 1, mud and water inlet end 10, first screen plate 11, second screen plate 12, third screen plate 13;
[0024] A coarse mud water tank 21, a fine mud water tank 22, a fine mud water tank overflow port 221, a first overflow port 2211, a second overflow port 2212, a connecting port 2213, and a sewage outlet 2214;
[0025] Coarse mud water pipeline 31, coarse mud water slurry pump 311, fine mud water pipeline 32, first valve 321, fine mud water slurry pump 322, bypass pipe 33, second valve 332;
[0026] A first cyclone 41 and a second cyclone 42;
[0027] Fine mud tank drain pipe 52, fifth valve 525;
[0028] Float device 6;
[0029] The first overflow pipe 71 , the third valve 713 , the second overflow pipe 72 , and the fourth valve 724 . DETAILED DESCRIPTION
[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0031] Features defined as "first" or "second" may include one or more of the features explicitly or implicitly. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.
[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0033] Reference below Figure 1-Figure 3 A shield mud-water separation stand-alone device 100 according to an embodiment of the utility model is described.
[0034] Embodiment 1
[0035] like Figure 1 As shown, this embodiment provides a shield mud and water separation stand-alone equipment 100 including a vibrating screen assembly 1, a coarse mud water tank 21, a fine mud water tank 22, a first cyclone 41 and a second cyclone 42.
[0036] like Figure 1As shown, the vibrating screen assembly 1 has a mud and water inlet end 10, and the vibrating screen assembly 1 includes a screen box, different first screen plates 11, second screen plates 12 and third screen plates 13. The first screen plates 11, second screen plates 12 and third screen plates 13 can be vibrated to screen mud and water and large-diameter sand and gravel.
[0037] In a specific example, the vibrating screen assembly 1 has a first sieve plate 11, a second sieve plate 12 and a third sieve plate 13, wherein the first sieve plate 11 has a mesh number of about 240 and a pore size of 0.06 mm. The mesh number of the second sieve plate 12 is about 40 and the pore size is 0.45 mm. The mesh number of the third sieve plate 13 is about 18 and the pore size is 1 mm. The shield mud water is transported to the mud water inlet end 10 by a slurry pump via a pipeline and connected to the third sieve plate. The first sieve plate, the second sieve plate and the third sieve plate vibrate together to separate the water in the shield mud water and the substances smaller than the pore size and fall into the coarse mud water tank.
[0038] Preferably, the large-diameter sand and gravel in the shield mud water are transported to the side of the discharge end for accumulation after being vibrated by the screen plate. Optionally, the screen plate is cleaned regularly to clean the large-diameter sand and gravel on the screen plate, thereby increasing the screening speed of the vibrating screen assembly.
[0039] like Figure 1 As shown, the coarse mud water tank 21 is connected to the feed port of the first cyclone 41 through the coarse mud water pipeline 31 , and the fine mud water tank 22 is connected to the feed port of the second cyclone 42 through the fine mud water pipeline 32 .
[0040] The cyclone overflow ports of the first cyclone 41 and the second cyclone 42 are both connected to the fine mud water tank 22 .
[0041] The bottom flow ports of the first cyclone 41 and the second cyclone 42 are connected to the muddy water inlet end 10 of the vibrating screen assembly 1 .
[0042] The sieve liquid outlet of the vibrating screen assembly 1 is connected to the coarse mud water tank 21 .
[0043] A fine mud water tank overflow port 221 is provided on the fine mud water tank 22 , and muddy water in the fine mud water tank 22 is discharged through the fine mud water tank overflow port 221 .
[0044] like Figure 1 As shown, the specific operation is as follows: the shield mud and water pass through the third sieve plate 13 on the vibrating screen assembly 1 from the mud and water inlet end 10, and the sand and gravel larger than the aperture of the third sieve plate is transported to one side of the discharge end under the vibration of the third sieve plate 13 and accumulated, and the mud and water smaller than the aperture of the third sieve plate passes through the sieve liquid outlet to the coarse mud water tank 21.
[0045] The muddy water in the coarse mud water tank 21 is pumped into the first cyclone 41 by the coarse mud water slurry pump 311 and is divided into two parts. One part enters the fine mud water tank 22 through the cyclone overflow port of the first cyclone 41, and the other part flows again to the muddy water inlet end 10 of the vibrating screen assembly 1 through the bottom flow port of the first cyclone 41 and is sieved through the second sieve plate 12. The sand and gravel larger than the aperture of the second sieve plate is transported to one side of the discharge end under the vibration of the second sieve plate 12 and accumulated, and the muddy water smaller than the aperture of the second sieve plate passes through the sieve liquid outlet to the coarse mud water tank 21.
[0046] The muddy water in the fine mud water tank 22 enters the second cyclone 42 through the fine mud water pipeline 32 and is divided into two parts. One part enters the fine mud water tank 22 through the cyclone overflow port of the second cyclone 42, and the other part flows to the vibrating screen assembly 1 again through the bottom flow port of the second cyclone 42 and is sieved through the first sieve plate 11. The sand and gravel larger than the aperture of the first sieve plate is vibrated by the sieve plate and transported to the other side of the discharge end for accumulation. The muddy water smaller than the aperture of the first sieve plate passes through the sieve liquid outlet to the coarse mud water tank 21.
[0047] When the muddy water level in the fine muddy water tank 22 exceeds the fine muddy water tank overflow port 221 , the muddy water in the fine muddy water tank 22 is discharged through the fine muddy water tank overflow port 221 .
[0048] In the related art, shield mud water treatment equipment is mostly single-stage or two-stage treatment stand-alone combined into a treatment system, with a large number of equipment, a large footprint, and low equipment utilization rate. When shield mud water needs to be separated and treated at three levels, it is necessary to connect the shield mud water three-stage separation equipment in series with the shield mud water two-stage separation equipment.
[0049] The shield mud and water separation stand-alone equipment 100 provided in this embodiment can perform three-stage separation treatment on shield mud and water, reduce the particle size of the shield mud and water, and improve the accuracy of shield construction; moreover, the structure of the shield mud and water separation stand-alone equipment 100 is more compact, reducing the footprint of the shield mud and water separation stand-alone equipment 100.
[0050] Furthermore, the mesh number of the first sieve plate 11 is 220-260 mesh, and the aperture is 0.057mm-0.07mm. For example, the mesh number of the first sieve plate 11 is 220 mesh, and the aperture is 0.07mm; it can also be 240 mesh, and the aperture is 0.065mm, etc. The mesh number of the first sieve plate 11 is not specifically limited here, and can be adjusted according to the actual construction site and needs.
[0051] Furthermore, the mesh number of the second sieve plate 12 is 30-50 meshes, and the aperture is 0.355mm-0.6mm. For example, the mesh number of the second sieve plate 12 is 50 meshes, and the aperture is 0.355mm; it can also be 40 meshes, and the aperture is 0.45mm, etc. The mesh number of the second sieve plate 12 is not specifically limited here, and can be adjusted according to the actual construction site and needs.
[0052] Furthermore, the mesh number of the third sieve plate 13 is 10-20 meshes, and the aperture is 2mm-0.9mm. For example, the mesh number of the third sieve plate 13 is 14 meshes, and the aperture is 1.43mm; it can also be 18 meshes, and the aperture is 1mm, etc. The mesh number of the third sieve plate 13 is not specifically limited here, and can be adjusted according to the actual construction site and needs.
[0053] like Figure 1 As shown, further, a coarse mud water slurry pump 311 is provided on the coarse mud water pipeline 31 , and a fine mud water slurry pump 322 is provided on the fine mud water pipeline 32 .
[0054] Embodiment 2
[0055] like Figure 1 As shown, this embodiment is basically the same as the first embodiment, except that: a first valve 321 is provided on the fine muddy water pipeline 32, and the first valve 321 can control the opening or closing of the fine muddy water pipeline 32. The coarse muddy water pipeline 31 is connected to the fine muddy water pipeline 32 through a bypass pipe 33, and a second valve 332 is provided on the bypass pipe 33 to control the opening or closing of the bypass pipe 33.
[0056] The shield mud and water separation stand-alone equipment 100 of the present embodiment has two processing modes: a shield mud and water three-stage separation processing mode and a shield mud and water rapid processing mode.
[0057] like Figure 1 As shown, in the shield mud water three-stage separation treatment mode, the first valve 321 is opened and the second valve 332 is closed. The shield mud water passes through the third screen plate 13 on the vibrating screen assembly 1 from the mud water inlet end 10, and the sand and gravel larger than the aperture of the third screen plate is transported to one side of the discharge end under the vibration of the third screen plate 13 and accumulated, and the mud water smaller than the aperture of the third screen plate falls into the coarse mud water tank 21.
[0058] The muddy water in the coarse mud water tank 21 is pumped into the first cyclone 41 and is divided into two parts. One part enters the fine mud water tank 22 through the cyclone overflow port of the first cyclone 41, and the other part flows again to the muddy water inlet end 10 of the vibrating screen assembly 1 through the bottom flow port of the first cyclone 41 and is sieved through the second sieve plate 12. The sand and gravel larger than the aperture of the second sieve plate are transported to one side of the discharge end under the vibration of the second sieve plate 12 and accumulated, and the muddy water smaller than the aperture of the second sieve plate falls into the coarse mud water tank 21.
[0059] The muddy water in the fine mud water tank 22 enters the second cyclone 42 through the fine mud water pipeline 32 and is divided into two parts. One part enters the fine mud water tank 22 through the cyclone overflow port of the second cyclone 42, and the other part flows to the vibrating screen assembly 1 again through the bottom flow port of the second cyclone 42 and is sieved through the first sieve plate 11. The sand and gravel larger than the aperture of the first sieve plate are vibrated by the sieve plate and transported to the other side of the discharge end for accumulation, and the muddy water smaller than the aperture of the first sieve plate falls into the coarse mud water tank 21.
[0060] A fine mud water tank overflow port 221 is provided on the fine mud water tank 22 , and muddy water in the fine mud water tank 22 is discharged through the fine mud water tank overflow port 221 .
[0061] That is to say, when the first valve 321 is closed and the second valve 332 is opened, the shield mud and water separation stand-alone equipment 100 can perform three-stage separation treatment on the shield mud and water, reduce the particle size of the shield mud and water, and improve the accuracy of shield construction.
[0062] like Figure 1 As shown, in the shield mud water rapid processing mode, the first valve 321 is closed and the second valve 332 is opened. The shield mud water passes through the third screen plate 13 on the vibrating screen assembly 1 from the mud water inlet end 10, and the sand and gravel larger than the aperture of the third screen plate is transported to one side of the discharge end under the vibration of the third screen plate 13 and accumulated, and the mud water smaller than the aperture of the third screen plate falls into the coarse mud water tank 21.
[0063] The muddy water in the coarse muddy water tank 21 flows into the coarse muddy water pipeline 31, part of the muddy water is pumped to the first cyclone 41 through the coarse muddy water pipeline 31, and part of the muddy water enters the fine muddy water pipeline 32 through the bypass pipe 33 and is pumped to the second cyclone 42. Finally, part of the muddy water flows from the bottom flow ports of the first cyclone 41 and the second cyclone 42 to the vibrating screen assembly 1 for screening, and the other part of the muddy water flows from the cyclone overflow ports of the first cyclone 41 and the second cyclone 42 to the fine muddy water tank 22 for temporary storage.
[0064] An overflow port 221 is provided on the fine mud water tank 22 , and muddy water in the fine mud water tank 22 is discharged through the overflow port 221 .
[0065] That is to say, when the first valve 321 is closed and the second valve 332 is opened, the shield mud and water separation single-unit equipment 100 improves the processing speed and efficiency of shield mud and water.
[0066] To sum up, the shield mud and water separation stand-alone equipment 100 provided in this embodiment has the following beneficial effects: when it is required to perform subdivided treatment of the shield mud and water, the first valve 321 is opened and the second valve 332 is closed, and the shield mud and water separation stand-alone equipment 100 switches to the shield mud and water three-stage separation treatment mode, and the shield mud and water separation stand-alone equipment 100 can perform three-stage treatment, reduce the particle size in the shield mud and water, and improve the accuracy of shield construction; when it is required to increase the treatment volume of the shield mud and water, the first valve 321 is closed and the second valve 332 is opened, and the shield mud and water separation stand-alone equipment 100 switches to the shield mud and water rapid treatment mode, and the shield mud and water separation stand-alone equipment 100 can switch between the two modes according to construction requirements.
[0067] Further, the first valve 321 may be a manual valve, a pneumatic valve or an electromagnetic valve; and / or, the second valve 332 may be a manual valve, a pneumatic valve or an electromagnetic valve.
[0068] like Figure 2 and Figure 3 As shown, further, both the fine mud water tank 22 and the coarse mud water tank 21 are provided with a sewage outlet 2214 for sewage discharge (the sewage outlet on the coarse mud water tank is not shown). The sewage outlet 2214 can be set at the bottom of the coarse mud water tank 21 and the fine mud water tank 22. The sewage outlet 2214 is in a normally closed state, and the sewage outlet 2214 is opened when the coarse mud water tank 21 and the fine mud water tank 22 are cleaned.
[0069] Embodiment 3
[0070] like Figure 2 As shown, this embodiment is basically the same as the second embodiment, and the difference is that the overflow port 221 of the fine mud water tank includes a first overflow port 2211, and the fine mud water tank 22 is further provided with a connecting port 2213 for connecting with the coarse mud water tank 21, and the connecting port 2213 is lower than the first overflow port 2211. When the mud water level in the coarse mud water tank 21 is lower than the connecting port 2213, the connecting port 2213 is opened; when the mud water level in the coarse mud water tank 21 is higher than the connecting port 2213, the connecting port 2213 is closed.
[0071] like Figure 1 and Figure 2 As shown, in the shield mud and water rapid processing mode, the mud and water in the fine mud and water tank 22 are discharged through the first overflow port 2211. Since the position of the first overflow port 2211 is higher than the connecting port 2213, the mud and water in the fine mud and water tank 22 is stored in the fine mud and water tank 22 after completing one separation, and part of the mud and water enters the coarse mud and water tank 21 through the connecting port 2213 for the next circulation, thereby improving the processing accuracy and processing speed of the shield mud and water separation stand-alone equipment 100 in the shield mud and water rapid processing mode, reducing the particle size in the shield mud and water, and improving the accuracy of shield construction.
[0072] like Figure 1 and Figure 2 As shown, further, the overflow port 221 of the fine mud water tank includes a first overflow port 2211 and a second overflow port 2212, both of which can be opened and closed, and the first overflow port 2211 is higher than the second overflow port 2212. The connecting port 2213 is located between the first overflow port 2211 and the second overflow port 2212. In the shield mud and water three-stage separation treatment mode, the first overflow port 2211 is closed and the second overflow port 2212 is opened. In the shield mud and water rapid treatment mode, the first overflow port 2211 is opened and the second overflow port 2212 is closed.
[0073] like Figure 1 and Figure 2 As shown, the specific operation is: in the shield mud and water three-stage separation treatment mode, the first overflow port 2211 is closed, the second overflow port 2212 is opened, and the mud and water in the fine mud water tank 22 are discharged through the second overflow port 2212; when the mud and water level in the coarse mud water tank 21 is higher than the connecting port 2213, the connecting port 2213 is closed, and the mud and water in the coarse mud water tank 21 cannot enter the fine mud water tank 22 through the connecting port 2213, thereby ensuring the accuracy of the three-stage separation treatment of the shield mud and water.
[0074] like Figure 1 and Figure 2 As shown, in the shield mud water rapid processing mode, the first overflow port 2211 is opened, the second overflow port 2212 is closed, and the mud water in the fine mud water tank 22 is discharged through the first overflow port 2211. Since the first overflow port 2211 is located at a higher position, the mud water in the fine mud water tank 22 is stored in the fine mud water tank 22 after completing one cycle, and enters the coarse mud water tank 21 through the connecting port 2213 for the next cycle. The mud water in the fine mud water tank 22 is discharged from the high first overflow port 2211, which improves the processing accuracy and processing speed of the shield mud water separation stand-alone device 100 in the shield mud water rapid processing mode, reduces the particle size in the shield mud water, and improves the accuracy of shield construction.
[0075] like Figure 3 As shown, the specific operation is that the first overflow port 2211 is connected to the discharge pipeline through the first overflow pipe 71, the second overflow port 2212 is connected to the discharge pipeline through the second overflow pipe 72, and the sewage outlet 2214 is connected to the discharge pipeline through the fine mud water tank sewage pipe 52. The first overflow pipe 71 is provided with a third valve 713, the second overflow pipe 72 is provided with a fourth valve 724, and the fine mud water tank sewage pipe 52 is provided with a fifth valve 525. As a result, the muddy water in the fine mud water tank 22 can be discharged through the discharge pipe, which can reduce the layout of the pipeline. The sewage outlet of the coarse mud water tank 21 is also connected to the coarse mud water tank sewage pipe (not shown).
[0076] like Figure 2As shown, further, a float device 6 is installed in the rough mud water tank 21, and the float device 6 includes a float and a limit plate; when the float position is lower than the height of the connecting port 2213, the limit plate opens the connecting port 2213; when the float position is higher than the height of the connecting port 2213, the limit plate closes the connecting port 2213. By providing the float device 6, the connecting port 2213 is automatically opened and closed according to the mud water level height in the rough mud water tank 21.
[0077] Embodiment 4
[0078] This embodiment is basically the same as the second embodiment, and the difference is that the vibrating screen assembly 1 includes a screen box, and the first screen plate 11, the second screen plate 12 and the third screen plate 13 are vibrated and arranged on the screen box to transport sand and gravel to the discharge end of the screen box.
[0079] Specifically, the first sieve plate 11, the second sieve plate 12 and the third sieve plate 13 are installed in the sieve box and form a whole. Vibrators are installed above the first sieve plate 11, the second sieve plate 12 and the third sieve plate 13, and springs are installed between the bottom and the sieve box.
[0080] The first sieve plate 11 and the second sieve plate 12 are detachably mounted on the sieve box. That is to say, the first sieve plate 11 and the sieve box, and the second sieve plate 12 and the sieve box are quick-installed.
[0081] In the shield mud and water rapid processing mode, the first sieve plate 11 is replaced by the second sieve plate 12 , that is, the vibrating screen assembly 1 includes a screen box, two second sieve plates 12 and a third sieve plate 13 .
[0082] The first valve 321 is closed, and the second valve 332 is opened. The shield mud water passes through the third sieve plate 13 on the vibrating screen assembly 1 from the mud water inlet end 10. The sand and gravel larger than the aperture of the third sieve plate are transported to one side of the discharge end under the vibration of the third sieve plate 13 and accumulated, and the mud water smaller than the aperture of the third sieve plate falls into the coarse mud water tank 21.
[0083] The muddy water in the coarse muddy water tank 21 flows into the coarse muddy water pipeline 31, part of the muddy water is pumped to the first cyclone 41 through the coarse muddy water pipeline 31, and part of the muddy water enters the fine muddy water pipeline 32 through the bypass pipe 33 and is pumped to the second cyclone 42. Finally, part of the muddy water flows from the bottom flow ports of the first cyclone 41 and the second cyclone 42 to the vibrating screen assembly 1 for screening, and the other part of the muddy water flows from the cyclone overflow ports of the first cyclone 41 and the second cyclone 42 to the fine muddy water tank 22 for temporary storage.
[0084] Since the first sieve plate 11 is replaced by the second sieve plate 12, the shield mud and water separation stand-alone equipment 100 performs secondary treatment on the mud and water in the shield mud and water rapid processing mode. The mud and water pass through the second sieve plate 12 at a faster speed, which can further improve the processing speed and efficiency of the shield mud and water.
[0085] Furthermore, the first screen plate 11 and the second screen plate 12 are fastened to the screen box by bolts.
[0086] Other structures and operations of the shield mud-water separation stand-alone device 100 according to the embodiment of the utility model are known to those of ordinary skill in the art and will not be described in detail here. In the description of the utility model, "first feature" and "second feature" may include one or more of these features. Among them, the up-down direction, left-right direction and front-back direction are based on the up-down direction, left-right direction and front-back direction shown in the figure.
[0087] In the description of the present utility model, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature "above", "above" and "above" a second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
[0088] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0089] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A shield mud-water separation stand-alone device, characterized in that: It includes a vibrating screen assembly, a coarse mud water tank, a fine mud water tank, a coarse mud water pipeline, a fine mud water pipeline, a first cyclone and a second cyclone; The vibrating screen assembly has a muddy water inlet end and includes a first sieve plate, a second sieve plate and a third sieve plate that can vibrate, the aperture of the first sieve plate is smaller than the aperture of the second sieve plate, and the aperture of the second sieve plate is smaller than the aperture of the third sieve plate; The crude mud water tank is connected to the feed port of the first cyclone through the crude mud water pipeline; The fine mud water tank is connected to the feed port of the second cyclone through the fine mud water pipeline; The cyclone overflow ports of the first cyclone and the second cyclone are both connected to the fine mud water tank; The muddy water inlet is used to lead to the third screen plate, the bottom flow port of the first cyclone is used to lead to the second screen plate, the bottom flow port of the second cyclone is used to lead to the first screen plate, and the sieve liquid outlet of the vibrating screen assembly is used to communicate with the coarse mud water tank; The fine mud water tank is provided with a fine mud water tank overflow port for discharging mud water.
2. The shield mud-water separation stand-alone equipment according to claim 1 is characterized in that: The mesh number of the first sieve plate is 220-260 mesh, and the aperture is 0.057 mm-0.07 mm; And\or, the mesh number of the second sieve plate is 30-50 meshes, and the pore size is 0.355 mm-0.6 mm; And\or, the mesh number of the third sieve plate is 10 mesh to 20 mesh, and the aperture is 2 mm to 0.9 mm.
3. The shield mud-water separation stand-alone equipment according to claim 1 is characterized in that: Also includes a bypass pipe, a first valve and a second valve; The coarse muddy water pipeline is connected to the fine muddy water pipeline through the bypass pipe; The first valve is arranged on the fine mud water pipeline and is used to control the opening or closing of the fine mud water pipeline; the second valve is arranged on the bypass pipe to control the opening or closing of the bypass pipe; The shield mud and water separation stand-alone equipment has two mud and water treatment modes: In the shield tunneling mud-water three-stage separation treatment mode, the first valve is opened and the second valve is closed; In the shield mud water rapid processing mode, the first valve is closed and the second valve is opened to allow mud water from the coarse mud water tank to enter the first cyclone and the second cyclone simultaneously through the fine mud water pipeline and the coarse mud water pipeline.
4. The shield mud-water separation stand-alone equipment according to claim 3 is characterized in that: The overflow port of the fine mud water tank comprises a first overflow port, and the fine mud water tank is provided with a connecting port for connecting with the coarse mud water tank, and the connecting port is lower than the first overflow port; When the muddy water level in the rough muddy water tank is lower than the height of the connecting port, the connecting port is opened; When the muddy water level in the rough muddy water tank is higher than the height of the connecting port, the connecting port is closed.
5. The shield mud-water separation stand-alone equipment according to claim 4 is characterized in that: The fine mud tank overflow port also includes a second overflow port that can be opened and closed; The first overflow port can be opened and closed and is higher than the second overflow port; The communication port is located between the first overflow port and the second overflow port; In the shield mud-water three-stage separation treatment mode, the first overflow port is closed and the second overflow port is opened; In the shield mud water rapid processing mode, the first overflow port is opened and the second overflow port is closed.
6. The shield mud-water separation stand-alone equipment according to claim 5 is characterized in that: A float device is installed in the coarse mud water tank; The float device comprises a float and a limit plate; When the position of the float is lower than the height of the communication port, the limit plate opens the communication port; when the position of the float is higher than the height of the communication port, the limit plate closes the communication port.
7. The shield mud-water separation stand-alone equipment according to claim 1 or 3, characterized in that: The vibrating screen assembly comprises a screen box, and the first screen plate, the second screen plate and the third screen plate are vibrated and arranged in the screen box to transport sand and gravel to a discharge end of the screen box.
8. The shield mud-water separation stand-alone equipment according to claim 7 is characterized in that: The first screen plate and the second screen plate are detachably mounted on the screen box.
9. The shield mud-water separation stand-alone equipment according to claim 8, characterized in that: The first sieve plate and the second sieve plate are fastened to the sieve box by bolts; and / or, a plurality of slideways are provided on the sieve box, and the first sieve plate and the second sieve plate are provided with slide rails that slidably cooperate with the slideways.
10. The shield mud-water separation stand-alone equipment according to claim 3, characterized in that: The first valve may be a manual valve, a pneumatic valve or an electromagnetic valve; and / or, the second valve may be a manual valve, a pneumatic valve or an electromagnetic valve.