Shield slurry separation equipment

Abstract

The utility model provides shield slurry separation equipment which comprises a pre-screening module, a slurry separation module and a slurry separation module, the pre-screening module comprises a drum screen and a vibrating screen, the feeding end of the drum screen is connected with the slurry discharging end of shield equipment, and the feeding end of the vibrating screen is connected with the fine particle discharging end of the drum screen; the dewatering module comprises a first swirler and a second swirler, the feeding end of the first swirler is connected with the fine particle discharging end of the vibrating screen, the feeding end of the second swirler is connected with the fine particle discharging end of the first swirler, and the fine particle discharging end of the second swirler is connected with the feeding end of the shield equipment. According to the shield slurry separation equipment, the combination of the rotary screen and the vibrating screen is adopted, and the problem that due to the fact that meshes of the vibrating screen are blocked in a clay stratum, slurry leakage is serious, and then muck is difficult to transport outwards can be effectively solved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of mud separation, and particularly relates to a shield mud separation device. BACKGROUND

[0002] During shield construction, the shield mud separation device is mainly used for effectively separating the solid (muck) and liquid (mud water) of the mud discharged by the shield device. The shield mud separation device is an indispensable supporting system for the slurry balance shield and is one of the important factors affecting the normal tunneling of the shield, and directly affects the construction progress, construction cost and environmental protection. The shield device needs to work in different complex stratum environments, and when facing clay stratum, the vibration screen in the separation device is easy to cause serious mud running due to mesh blockage, which leads to the difficulty of muck transportation and affects the construction efficiency. SUMMARY

[0003] The present disclosure aims to at least partially solve one of the technical problems in the related art.

[0004] To this end, the purpose of the present disclosure is to provide a shield mud separation device.

[0005] To achieve the above purpose, the present disclosure provides a shield mud separation device, comprising: a pre-screening module, the pre-screening module comprising: a drum screen and a vibration screen, the feed end of the drum screen being connected with the mud discharge end of the shield device, and the feed end of the vibration screen being connected with the fine particle discharge end of the drum screen; a dewatering module, the dewatering module comprising: a first cyclone and a second cyclone, the feed end of the first cyclone being connected with the fine particle discharge end of the vibration screen, and the feed end of the second cyclone being connected with the fine particle discharge end of the first cyclone, the fine particle discharge end of the second cyclone being connected with the feed end of the shield device.

[0006] Optionally, the pre-screening module further comprises: a first liquid storage tank, the feed end of the first liquid storage tank being connected with the fine particle discharge end of the drum screen, and the discharge end of the first liquid storage tank being connected with the feed end of the vibration screen; wherein the drum screen is located above the first liquid storage tank, and the vibration screen is located below the first liquid storage tank.

[0007] Optionally, the pre-screening module further comprises: a second liquid storage tank, the feed end of the second liquid storage tank being connected with the fine particle discharge end of the vibration screen, and the discharge end of the second liquid storage tank being connected with the feed end of the first cyclone; wherein the vibration screen is located above the second liquid storage tank.

[0008] Optionally, the pre-screening module further comprises: a first material conveying pump, the feed end of the first material conveying pump being connected with the discharge end of the second liquid storage tank, and the discharge end of the first material conveying pump being connected with the feed end of the first cyclone.

[0009] Optionally, the coarse-grained outlet end of the drum screen is configured to output sand material of a first particle size, and the coarse-grained outlet end of the vibrating screen is configured to output sand material of a second particle size, the first particle size being greater than the second particle size.

[0010] Optionally, the separation device further comprises a first base on which the drum screen and / or the vibrating screen are arranged, and a second base connected to the first base, and on which the first cyclone and the second cyclone are arranged.

[0011] Optionally, the dewatering module further comprises a dewatering screen, a lower-layer inlet end of the dewatering screen being connected to the coarse-grained outlet end of the first cyclone, and a lower-layer fine-grained outlet end of the dewatering screen being connected to the inlet end of the second cyclone, an upper-layer inlet end of the dewatering screen being connected to the coarse-grained outlet end of the second cyclone, and an upper-layer fine-grained outlet end of the dewatering screen being connected to the inlet end of the second cyclone.

[0012] Optionally, the lower-layer coarse-grained outlet end of the dewatering screen is configured to output sand material of a third particle size, and the upper-layer coarse-grained outlet end of the dewatering screen is configured to output sand material of a fourth particle size, the third particle size being less than the fourth particle size.

[0013] Optionally, the dewatering module further comprises a third liquid storage tank, an inlet end of the third liquid storage tank being connected to the fine-grained outlet end of the first cyclone, and an outlet end of the third liquid storage tank being connected to the inlet end of the second cyclone, and the first cyclone being arranged above the third liquid storage tank.

[0014] Optionally, the dewatering module further comprises a second material conveying pump, an inlet end of the second material conveying pump being connected to the outlet end of the third liquid storage tank, and an outlet end of the second material conveying pump being connected to the inlet end of the second cyclone.

[0015] The technical solutions provided by the present disclosure can have the following beneficial effects:

[0016] Since the feeding end of the drum screen is connected with the slurry discharging end of the shield device, the feeding end of the vibration screen is connected with the fine particle discharging end of the drum screen, the feeding end of the first cyclone is connected with the fine particle discharging end of the vibration screen, and the feeding end of the second cyclone is connected with the fine particle discharging end of the first cyclone, the slurry output by the shield device can be sequentially subjected to screening by the drum screen, screening by the vibration screen, centrifugal sedimentation by the first cyclone and centrifugal sedimentation by the second cyclone, so as to realize solid-liquid (muck and slurry) separation, thereby facilitating transportation of the muck and reuse of the slurry; and the combination of the drum screen and the vibration screen can meet the construction needs of different complex strata and effectively solve the problem of serious slurry running of the vibration screen in clay strata due to mesh blockage, thereby effectively improving the construction efficiency.

[0017] Additional aspects and advantages of the present disclosure will be made apparent from the following description, which, taken together with the accompanying drawings, describes or illustrates such aspects and advantages by way of example as described below. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and / or additional aspects and advantages of the present disclosure will become apparent and be readily appreciated from the following description, taken together with the accompanying drawings, in which:

[0019] Figure 1 is a structural schematic diagram of a pre-screening module in a shield slurry separation device according to an embodiment of the present disclosure;

[0020] Figure 2 is a structural schematic diagram of a dewatering module in a shield slurry separation device according to an embodiment of the present disclosure;

[0021] Figure 3 is a slurry flow path schematic diagram of a shield slurry separation device according to an embodiment of the present disclosure;

[0022] As shown in the figure: 1, pre-screening module, 11, first base, 12, drum screen, 13, vibration screen, 14, first liquid storage tank, 15, second liquid storage tank, 16, first material conveying pump;

[0023] 2, dewatering module, 21, second base, 22, first cyclone, 23, second cyclone, 24, dewatering screen, 25, third liquid storage tank, 26, second material conveying pump. DETAILED DESCRIPTION

[0024] Embodiments of the present disclosure are described below in detail with reference to examples shown in the drawings, wherein the same or similar numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are for the purpose of explaining the present disclosure only and are not to be understood as limiting the present disclosure. On the contrary, embodiments of the present disclosure include all changes, modifications and equivalents falling within the spirit and scope of the appended claims.

[0025] As shown in Figure 1 , Figure 2 and Figure 3 , the present disclosure provides a shield mud separation device, comprising: a pre-screening module 1 and a dewatering module 2, the pre-screening module 1 comprising: a drum screen 12 and a vibrating screen 13, the feed end of the drum screen 12 being connected to the mud discharge end of a shield device, and the feed end of the vibrating screen 13 being connected to the fine particle discharge end of the drum screen 12, the dewatering module 2 comprising: a first cyclone 22 and a second cyclone 23, the feed end of the first cyclone 22 being connected to the fine particle discharge end of the vibrating screen 13, and the feed end of the second cyclone 23 being connected to the fine particle discharge end of the first cyclone 22, the fine particle discharge end of the second cyclone 23 being connected to the feed end of the shield device.

[0026] It can be understood that, since the feed end of the drum screen 12 is connected to the mud discharge end of the shield device, and the feed end of the vibrating screen 13 is connected to the fine particle discharge end of the drum screen 12, the feed end of the first cyclone 22 is connected to the fine particle discharge end of the vibrating screen 13, and the feed end of the second cyclone 23 is connected to the fine particle discharge end of the first cyclone 22, the mud output by the shield device can be subjected to screening by the drum screen 12, screening by the vibrating screen 13, centrifugal sedimentation by the first cyclone 22 and centrifugal sedimentation by the second cyclone 23 in sequence, so as to realize solid-liquid (soil and mud water) separation, thereby facilitating transportation of the soil and reuse of the mud water.

[0027] In addition, the combination of the drum screen 12 and the vibrating screen 13 can meet the construction needs of different complex strata, and can effectively solve the problem of serious mud running caused by mesh blockage of the vibrating screen 13 in clay strata, thereby effectively improving the construction efficiency.

[0028] It should be noted that the pre-screening module 1 is used for pre-screening of shield mud, so as to screen out sand with large particle size, and to make mud with small particle size enter the dewatering module 2 for solid-liquid separation.

[0029] The drum screen 12 is a device for separating solid materials by using a rotating cylindrical screen. The working principle of the drum screen 12 is mainly to realize the screening and separation purposes by the movement of the materials in the rotating drum. When the materials enter the drum screen 12, they fall into the screen under the action of gravity. With the rotation of the drum, the materials in the screen are subjected to the action force of the rotating movement. Different particle sizes of the materials can pass through different pore diameters of the screen to realize the screening and separation of the materials. The specific type of the drum screen 12 can be set according to actual needs, and no limitation is made. For example, the screen pore diameter of the drum screen 12 is 10 mm, that is, the stone blocks and mud blocks with a particle size greater than 10 mm are output from the coarse particle discharge end of the drum screen 12 to the transportation point, and the remaining separated slurry is output from the fine particle discharge end of the drum screen 12 to the vibrating screen 13.

[0030] The vibrating screen 13 works by using the reciprocating rotational vibration generated by the excitation of the vibrator. The upper rotating weight of the vibrator makes the screen surface produce planar rotary vibration, and the lower rotating weight makes the screen surface produce conical rotary vibration. The combined effect makes the screen surface produce complex rotational vibration, and the vibration trajectory is a complex spatial curve. The curve is a circle in the horizontal plane and an ellipse in the vertical plane. By adjusting the excitation force of the upper and lower rotating weights, the amplitude can be changed, and by adjusting the spatial phase angle of the upper and lower weights, the curve shape of the screen surface movement trajectory and the movement trajectory of the materials on the screen surface can be changed. The specific type of the vibrating screen 13 can be set according to actual needs, and no limitation is made. For example, the screen pore diameter of the vibrating screen 13 is 3 mm, that is, the materials with a particle size greater than 3 mm are output from the coarse particle discharge end of the vibrating screen 13 to the transportation point, and the remaining separated slurry is output from the fine particle discharge end of the vibrating screen 13 to the first cyclone 22. Further, the vibrating screen 13 can be a double-layer screen, the upper screen pore diameter is 6 mm, and the lower screen pore diameter is 3 mm. The water content of the materials falling on the transportation point from the coarse particle discharge end of the vibrating screen 13 is less than 30%, which meets the requirements of automobile transportation.

[0031] The dewatering module 2 is used for solid-liquid separation of the pre-screened slurry.

[0032] The first hydrocyclone 22 and the second hydrocyclone 23 are both hydrocyclones. Hydrocyclones are common separation and classification devices, often based on the principle of centrifugal sedimentation. When the two-phase mixture to be separated enters the hydrocyclone tangentially from its periphery under a certain pressure, it generates intense three-dimensional elliptical strong rotational shear turbulence. Due to the size difference between coarse and fine particles, they experience different magnitudes of centrifugal force, centripetal buoyancy, and fluid drag. Under the action of centrifugal sedimentation, most of the coarse particles are discharged through the underflow port of the hydrocyclone, while most of the fine particles are discharged through the overflow pipe, thus achieving the purpose of separation and classification. The specific types of the first hydrocyclone 22 and the second hydrocyclone 23 can be set according to actual needs and are not limited thereto. For example, the separation particle size of the first hydrocyclone 22 is 0.074 mm. That is to say, the material with a particle size greater than 0.074 mm in the first hydrocyclone 22 enters the underflow and is output from the coarse particle discharge end to the transportation point, while the remaining material overflows from the fine particle discharge end to the second hydrocyclone 23. The separation particle size of the second hydrocyclone 23 is 0.020 mm. That is to say, the material with a particle size greater than 0.020 mm in the second hydrocyclone 23 enters the underflow and is output from the coarse particle discharge end to the transportation point, while the remaining material overflows from the fine particle discharge end and returns to the tunnel boring machine.

[0033] The drum screen 12 can be arranged above the vibrating screen 13 or above the hydrocyclone, without any restriction.

[0034] like Figure 1 As shown, in some embodiments, the pre-screening module 1 further includes a first liquid storage tank 14, the feed end of which is connected to the fine particle discharge end of the drum screen 12, and the discharge end of the first liquid storage tank 14 is connected to the feed end of the vibrating screen 13. The drum screen 12 is located above the first liquid storage tank 14, and the vibrating screen 13 is located below the first liquid storage tank 14.

[0035] Understandably, since the feed end of the first storage tank 14 is connected to the fine particle discharge end of the drum screen 12, and the discharge end of the first storage tank 14 is connected to the feed end of the vibrating screen 13, the slurry output from the fine particle discharge end of the drum screen 12 can be pre-stored in the first storage tank 14 and can be flexibly transported to the vibrating screen 13, thereby making the operation of the pre-screening module 1 more flexible and stable.

[0036] Furthermore, since the drum screen 12 is located above the first liquid storage tank 14 and the vibrating screen 13 is located below the first liquid storage tank 14, the slurry output from the drum screen 12 can flow by gravity to the first liquid storage tank 14, and the slurry in the first liquid storage tank 14 can flow by gravity to the vibrating screen 13, thereby making the pre-screening module 1 have lower operating energy consumption and more convenient to use.

[0037] It should be noted that the first storage tank 14 is used for temporary storage of materials between the drum screen 12 and the vibrating screen 13, and the specific type of the first storage tank 14 can be set according to actual needs, and no limitation is made to this, for example, the first storage tank 14 can be a box structure, and a valve group can be arranged between the first storage tank 14 and the drum screen 12 and between the first storage tank 14 and the vibrating screen 13 for on-off control.

[0038] As shown in Figure 1 some embodiments, the pre-screening module 1 further comprises a second storage tank 15, the feed end of the second storage tank 15 is connected with the fine particle discharge end of the vibrating screen 13, and the discharge end of the second storage tank 15 is connected with the feed end of the first cyclone 22. Wherein, the vibrating screen 13 is located above the second storage tank 15.

[0039] It can be understood that, since the feed end of the second storage tank 15 is connected with the fine particle discharge end of the vibrating screen 13, and the discharge end of the second storage tank 15 is connected with the feed end of the first cyclone 22, the mud discharged from the fine particle discharge end of the vibrating screen 13 can be pre-stored in the second storage tank 15 and can be flexibly delivered into the first cyclone 22, so that the operation of the pre-screening module 1 is more flexible and stable.

[0040] And, since the vibrating screen 13 is located above the second storage tank 15, the mud discharged from the vibrating screen 13 can flow into the second storage tank 15, so that the operation of the pre-screening module 1 has lower energy consumption and is more convenient to use.

[0041] It should be noted that the second storage tank 15 is used for temporary storage of materials between the vibrating screen 13 and the first cyclone 22, and the specific type of the second storage tank 15 can be set according to actual needs, and no limitation is made to this, for example, the second storage tank 15 can be a box structure, and a valve group can be arranged between the second storage tank 15 and the vibrating screen 13 and between the second storage tank 15 and the first cyclone 22 for on-off control.

[0042] As shown in Figure 1 some embodiments, the pre-screening module 1 further comprises a first material conveying pump 16, the feed end of the first material conveying pump 16 is connected with the discharge end of the second storage tank 15, and the discharge end of the first material conveying pump 16 is connected with the feed end of the first cyclone 22.

[0043] It can be understood that, since the feed end of the first material conveying pump 16 is connected with the discharge end of the second storage tank 15, and the discharge end of the first material conveying pump 16 is connected with the feed end of the first cyclone 22, the mud in the second storage tank 15 can be delivered into the first cyclone 22 by the first material conveying pump 16, so that further solid-liquid separation can be realized by the first cyclone 22.

[0044] It should be noted that the first feeding pump 16 is used to convey the slurry in the second storage tank 15 to the first cyclone 22, and the specific type of the first feeding pump 16 can be set according to actual needs, which is not limited.

[0045] In some embodiments, the pre-screening module 1 further comprises a pressure reducing device, the feeding end of the pressure reducing device is connected with the slurry discharging end of the shield device, and the feeding end of the drum screen 12 is connected with the discharging end of the pressure reducing device.

[0046] It can be understood that, since the feeding end of the pressure reducing device is connected with the slurry discharging end of the shield device, and the feeding end of the drum screen 12 is connected with the discharging end of the pressure reducing device, the slurry output by the shield device can be reduced in pressure by the pressure reducing device, thereby ensuring stable screening of the slurry in the drum screen 12.

[0047] It should be noted that the pressure reducing device is used for pressure reduction of the slurry output by the shield device, and the specific type of the pressure reducing device can be set according to actual needs, which is not limited, for example, the pressure reducing device can be a pressure relief device in the shield device, or an additional pressure reducing device.

[0048] In some embodiments, the coarse particle discharging end of the drum screen 12 is used to output sand of a first particle size, and the coarse particle discharging end of the vibrating screen 13 is used to output sand of a second particle size, the first particle size being greater than the second particle size.

[0049] It can be understood that, since the coarse particle discharging end of the drum screen 12 is used to output sand of a first particle size, and the coarse particle discharging end of the vibrating screen 13 is used to output sand of a second particle size, the first particle size being greater than the second particle size, the drum screen 12 and the vibrating screen 13 can realize step-by-step screening of the slurry, thereby ensuring that the separation device can efficiently and accurately realize solid-liquid separation.

[0050] It should be noted that the first particle size and the second particle size can be set according to actual needs, which is not limited.

[0051] As shown in Figure 1 and Figure 2 In some embodiments, the separation device further comprises a first base 11 and a second base 21, the drum screen 12 and / or the vibrating screen 13 are arranged on the first base 11 respectively, the second base 21 is connected with the first base 11, and the first cyclone 22 and the second cyclone 23 are arranged on the second base 21 respectively.

[0052] It can be understood that, since the drum screen 12 and the vibration screen 13 are arranged on the first base 11 respectively, and the first cyclone 22 and the second cyclone 23 are arranged on the second base 21 respectively, the drum screen 12, the vibration screen 13, the first cyclone 22 and the second cyclone 23 can be stably arranged by using the first base 11 and the second base 21, thereby realizing efficient solid-liquid separation.

[0053] It should be noted that the first base 11 is used for carrying the drum screen 12, the vibration screen 13 and the like, and the specific type of the first base 11 can be set according to actual needs, and no limitation is made thereto. For example, the first base 11 can be a foundation structure partially embedded in a bearing surface, having a plurality of support columns and a large bearing platform arranged on the plurality of support columns, and the drum screen 12, the vibration screen 13 and the like are arranged on the bearing platform of the first base 11 by the first support.

[0054] The second base 21 is used for carrying the first cyclone 22, the second cyclone 23 and the like, and the specific type of the second base 21 can be set according to actual needs, and no limitation is made thereto. For example, the second base 21 can be a foundation structure partially embedded in a bearing surface, having a plurality of support columns and a large bearing platform arranged on the plurality of support columns, and the first cyclone 22, the second cyclone 23 and the like are arranged on the bearing platform of the second base 21 by the second support.

[0055] It should be noted that the drum screen 12 and the vibration screen 13 can be arranged on the first base 11 simultaneously or separately, and no limitation is made thereto.

[0056] The first base 11 and the second base 21 can be integrally formed to form a whole foundation structure, or can be arranged independently, and no limitation is made thereto.

[0057] As shown in FIGS. Figure 2 and Figure 3 In some embodiments, the dewatering module 2 further comprises a dewatering screen 24, a lower layer feeding end of the dewatering screen 24 is connected with the coarse particle discharging end of the first cyclone 22, and a lower layer fine particle discharging end of the dewatering screen 24 is connected with the feeding end of the second cyclone 23, an upper layer feeding end of the dewatering screen 24 is connected with the coarse particle discharging end of the second cyclone 23, and an upper layer fine particle discharging end of the dewatering screen 24 is connected with the feeding end of the second cyclone 23.

[0058] It can be understood that, since the lower layer feeding end of the dewatering screen 24 is connected with the coarse particle discharging end of the first cyclone 22, and the lower layer fine particle discharging end of the dewatering screen 24 is connected with the feeding end of the second cyclone 23, the sand material output from the coarse particle discharging end of the first cyclone 22 can be further screened by the lower layer of the dewatering screen 24. Meanwhile, since the upper layer feeding end of the dewatering screen 24 is connected with the coarse particle discharging end of the second cyclone 23, and the upper layer fine particle discharging end of the dewatering screen 24 is connected with the feeding end of the second cyclone 23, the sand material output from the coarse particle discharging end of the second cyclone 23 can be further screened by the upper layer of the dewatering screen 24. Thus, through the upper layer screening and the lower layer screening of the dewatering screen 24, the solid-liquid separation precision of the dewatering module 2 is higher, and the operation is more stable.

[0059] It should be noted that the dewatering screen 24 adopts a double-electrode self-synchronous technology, a general eccentric block, and an adjustable amplitude vibrator, and mainly comprises a screen box, a vibration exciter, a supporting system, and a motor. Two mutually independent vibrators are driven to synchronously and reversely operate through a rubber belt coupling. The centrifugal forces generated by the two sets of eccentric masses are superimposed along the direction of vibration, and the reverse centrifugal forces are offset, so as to form a single vibration excitation along the direction of vibration, so that the screen box performs reciprocating linear motion. The specific type of the dewatering screen 24 can be set according to actual needs, and no limitation is made thereto.

[0060] In some embodiments, the lower layer coarse particle discharging end of the dewatering screen 24 is used to output sand material of a third particle size, and the upper layer coarse particle discharging end of the dewatering screen 24 is used to output sand material of a fourth particle size, the third particle size being smaller than the fourth particle size.

[0061] It can be understood that, since the lower layer coarse particle discharging end of the dewatering screen 24 is used to output sand material of a third particle size, and the upper layer coarse particle discharging end of the dewatering screen 24 is used to output sand material of a fourth particle size, the third particle size being smaller than the fourth particle size, the upper layer and the lower layer of the dewatering screen 24 can realize step-by-step screening of the slurry, so as to ensure that the separation device can efficiently and accurately realize solid-liquid separation.

[0062] It should be noted that the third particle size and the fourth particle size can be set according to actual needs, and no limitation is made thereto.

[0063] As shown in FIG. 1, Figure 2 In some embodiments, the dewatering module 2 further comprises a third liquid storage tank 25, the feeding end of the third liquid storage tank 25 being connected with the fine particle discharging end of the first cyclone 22, and the discharging end of the third liquid storage tank 25 being connected with the feeding end of the second cyclone 23. The first cyclone 22 is located above the third liquid storage tank 25.

[0064] It can be understood that, since the feed end of the third storage tank 25 is connected with the fine particle discharge end of the first cyclone 22, and the discharge end of the third storage tank 25 is connected with the feed end of the second cyclone 23, the slurry output from the fine particle discharge end of the first cyclone 22 can be pre-stored in the third storage tank 25 and can be flexibly delivered into the second cyclone 23, so that the operation of the dewatering module 2 is more flexible and stable.

[0065] In addition, since the first cyclone 22 is located above the third storage tank 25, the slurry output from the first cyclone 22 can flow into the third storage tank 25, so that the operation of the dewatering module 2 is more energy-saving and convenient to use.

[0066] It should be noted that the third storage tank 25 is used for temporary storage of materials between the first cyclone 22 and the second cyclone 23, and the specific type of the third storage tank 25 can be set according to actual needs, which is not limited. For example, the third storage tank 25 can be a box structure, and a valve group can be arranged between the third storage tank 25 and the first cyclone 22 and between the third storage tank 25 and the second cyclone 23 for on-off control.

[0067] As shown in FIG. Figure 2 In some embodiments, the dewatering module 2 further includes a second material conveying pump 26, the feed end of the second material conveying pump 26 is connected with the discharge end of the third storage tank 25, and the discharge end of the second material conveying pump 26 is connected with the feed end of the second cyclone 23.

[0068] It can be understood that, since the feed end of the second material conveying pump 26 is connected with the discharge end of the third storage tank 25, and the discharge end of the second material conveying pump 26 is connected with the feed end of the second cyclone 23, the slurry in the third storage tank 25 can be delivered into the second cyclone 23 by the second material conveying pump 26, so that further solid-liquid separation can be realized by the second cyclone 23.

[0069] It should be noted that the second material conveying pump 26 is used for delivering the slurry in the third storage tank 25 into the second cyclone 23, and the specific type of the second material conveying pump 26 can be set according to actual needs, which is not limited.

[0070] In the present embodiment, the separation device can be provided in multiple groups, and the multiple groups of devices are combined for use to flexibly meet different operation requirements.

[0071] In the description of the present disclosure, the terms “first”, “second”, and the like are only for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, in the description of the present disclosure, the meaning of “multiple” is two or more, unless otherwise specified.

[0072] Any procedural or methodological descriptions in flow charts or otherwise described herein can be understood to represent modules, segments, or portions of code that include executable instructions for implementing the logic functions or procedures described, and the scope of preferred embodiments of the present disclosure includes additional implementations in which the functions can be performed in an order different from that shown or discussed, including substantially simultaneously or in reverse order, as appropriate, according to the functionality involved, as will be understood by those skilled in the art to which embodiments of the present disclosure pertain.

[0073] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the present specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in an appropriate manner.

[0074] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present disclosure, and those skilled in the art can make changes, modifications, replacements, and variations to the above-described embodiments within the scope of the present disclosure.

Claims

1. A shield slurry separation apparatus, characterized by, The separation device comprises: a pre-screening module comprising a drum screen and a vibrating screen, a feed end of the drum screen being connected to a slurry discharge end of a shield device, and a feed end of the vibrating screen being connected to a fine particle discharge end of the drum screen; a dewatering module comprising a first cyclone and a second cyclone, a feed end of the first cyclone being connected to a fine particle discharge end of the vibrating screen, and a feed end of the second cyclone being connected to a fine particle discharge end of the first cyclone, a feed end of the second cyclone being connected to a feed end of the shield device.

2. The shield slurry separation apparatus of claim 1, wherein, The pre-screening module further comprises: a first storage tank, a feed end of the first storage tank being connected to a fine particle discharge end of the drum screen, and a discharge end of the first storage tank being connected to a feed end of the vibrating screen; wherein the drum screen is located above the first storage tank, and the vibrating screen is located below the first storage tank.

3. The shield slurry separation apparatus of claim 1, wherein, The pre-screening module further comprises: a second storage tank, a feed end of the second storage tank being connected to a fine particle discharge end of the vibrating screen, and a discharge end of the second storage tank being connected to a feed end of the first cyclone; wherein the vibrating screen is located above the second storage tank.

4. The shield slurry separation apparatus of claim 3, wherein, The pre-screening module further comprises: a first feed pump, a feed end of the first feed pump being connected to a discharge end of the second storage tank, and a discharge end of the first feed pump being connected to a feed end of the first cyclone.

5. The shield slurry separation apparatus of claim 1, wherein, A coarse particle discharge end of the drum screen is used to output sand material of a first particle size, and a coarse particle discharge end of the vibrating screen is used to output sand material of a second particle size, the first particle size being greater than the second particle size.

6. The shield slurry separation apparatus of claim 1, wherein, The separation device further comprises: a first base, the drum screen and / or the vibrating screen being respectively arranged on the first base; a second base, the second base being connected to the first base, and the first cyclone and the second cyclone being respectively arranged on the second base.

7. The shield slurry separation apparatus of claim 1, wherein, The dewatering module further comprises: a dewatering screen, a lower layer feed end of the dewatering screen being connected to a coarse particle discharge end of the first cyclone, and a lower layer fine particle discharge end of the dewatering screen being connected to a feed end of the second cyclone, an upper layer feed end of the dewatering screen being connected to a coarse particle discharge end of the second cyclone, and an upper layer fine particle discharge end of the dewatering screen being connected to a feed end of the second cyclone.

8. The shield slurry separation apparatus of claim 7, wherein, A lower layer coarse particle discharge end of the dewatering screen is used to output sand material of a third particle size, and an upper layer coarse particle discharge end of the dewatering screen is used to output sand material of a fourth particle size, the third particle size being less than the fourth particle size.

9. The shield slurry separation apparatus of claim 1, wherein, The dewatering module further comprises: a third storage tank, a feed end of the third storage tank being connected to a fine particle discharge end of the first cyclone, and a discharge end of the third storage tank being connected to a feed end of the second cyclone; wherein the first cyclone is located above the third storage tank.

10. The shield slurry separation apparatus of claim 9, wherein, The dewatering module further comprises: a second feed pump, a feed end of the second feed pump being connected to a discharge end of the third storage tank, and a discharge end of the second feed pump being connected to a feed end of the second cyclone.

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