Slurry separation device and shield equipment with same

Abstract

The utility model provides a mud separating device and shield tunneling equipment with the mud separating device, the mud separating device comprises a pre-screening module, a separating module and a primary liquid storage box, the pre-screening module comprises a first rack, a drum screen and a vibrating screen, the drum screen and the vibrating screen are both located on the first rack, and the drum screen is located on the upstream of the vibrating screen. The separation module is independently arranged relative to the first rack; the primary liquid storage tank is respectively connected with the pre-screening module and the separation module, the slurry primarily treated by the pre-screening module can flow into the primary liquid storage tank, and the slurry in the primary liquid storage tank can flow into the separation module through a conveying part. The utility model is used for providing the mud separating device which is relatively low in noise during working and the shield tunneling equipment with the mud separating device.

Description

Technical Field

[0001] The utility model relates to the technical field of shield tunnel construction, in particular to a mud separation device and shield equipment with the same. Background Art

[0002] With the rapid development of cities, more and more urban rail transit construction is being carried out. Shield tunnel construction technology has become the main choice for urban subway construction and urban cross-river tunnel construction due to its fast construction speed, high degree of mechanization, low construction noise, light pollution, low energy consumption, and small impact on ground subsidence. It has been widely used in urban tunnel construction. During the shield construction process, especially the slurry shield technology, in order to ensure the stability of the excavation surface soil, it is necessary to inject mud and water into the sealed compartment of the excavation surface, so that under the action of mud and water pressurization, it can maintain pressure balance with the external environment to avoid instability of the excavation surface soil. During the advancement of the shield equipment, the mixture of mud and excavated slag needs to be separated and processed to achieve the recycling of mud. At the same time, this treatment process can also help improve construction progress and reduce construction costs.

[0003] Currently, most commonly used mud processing equipment is an integrated structure, which will generate huge noise due to vibration and resonance when in use, and will affect the service life of non-vibration working equipment to a certain extent.

[0004] In order to solve the above problems, it is necessary to develop a new type of mud separation device and shield equipment. Summary of the invention

[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] To this end, an embodiment of the utility model provides a mud separation device and a shield equipment having the same, and the mud separation device and the shield equipment can effectively reduce the noise problem during operation.

[0007] The mud separation device provided according to the embodiment of the utility model includes a pre-screening module, a separation module and a primary liquid storage tank, wherein: the pre-screening module includes a first frame, a drum screen and a vibrating screen, the drum screen and the vibrating screen are both located on the first frame and the drum screen is located upstream of the vibrating screen; the separation module is independently arranged relative to the first frame; the primary liquid storage tank is respectively connected to the pre-screening module and the separation module, the slurry after preliminary treatment by the pre-screening module can flow into the primary liquid storage tank, and the slurry in the primary liquid storage tank can flow into the separation module through the conveying member.

[0008] According to the mud separation device of the embodiment of the utility model, the pre-screening module that generates vibration during operation is separated from the separation module, so that the resonance of the separation module due to the vibration of the pre-screening module can be effectively avoided, thereby greatly reducing the noise generated by the mud separation device during operation within a certain range. At the same time, the drum screen in the pre-screening module has a good dehydration and separation effect, which can meet the construction needs of different complex formations, and effectively solves the problem of slurry leakage due to blockage of the vibrating screen when working in clay formations, making the separation of slag more convenient.

[0009] In some embodiments, a primary liquid storage tank is also installed on the first frame, and the primary liquid storage tank is used to receive the mud processed by the drum screen. The mud in the primary liquid storage tank can flow to the vibrating screen through a pipeline.

[0010] In some embodiments, the trommel is located above the vibrating screen and the primary liquid storage tank is located between the trommel and the vibrating screen.

[0011] In some embodiments, the separation module includes a primary separation component, a secondary separation component and a secondary liquid storage tank. The conveying member is connected to the primary separation component, and the slurry in the primary liquid storage tank is discharged into the primary separation component through the conveying member for primary separation treatment; the primary separation component and the secondary separation component are connected through the secondary liquid storage tank, and the secondary separation component is connected to the conditioning and pulping system located downstream through a pipeline.

[0012] In some embodiments, the conveying member is a conveying pipeline, and a first-level slurry pump is also arranged on the conveying pipeline. The mud in the first-level liquid storage tank is conveyed to the first-level separation component through the conveying pipeline under the action of the first-level slurry pump; and / or, the separation module also includes a second-level slurry pump. The mud in the second-level liquid storage tank is conveyed to the second-level separation component under the action of the second-level slurry pump.

[0013] In some embodiments, the primary separation component includes a primary cyclone and a primary separation screen, the underflow separated by the primary cyclone flows into the primary separation screen for primary screening, and the overflow separated by the primary cyclone flows into the secondary liquid storage tank; and / or, the secondary separation component includes a secondary cyclone and a secondary separation screen, the underflow separated by the secondary cyclone flows into the secondary separation screen for secondary screening, and the overflow separated by the secondary cyclone flows into the downstream conditioning and pulping system.

[0014] In some embodiments, the primary cyclone and the secondary cyclone are arranged side by side; and / or, the primary separation screen and the secondary separation screen are arranged up and down and the secondary separation screen is located above the primary separation screen.

[0015] In some embodiments, the primary separation component also includes a primary reflux component, which connects the primary separation screen and the secondary liquid storage tank, and the mud screened by the primary separation screen flows into the secondary liquid storage tank through the primary reflux component; and / or, the secondary separation component also includes a secondary reflux component, which connects the secondary separation screen and the secondary liquid storage tank, and the mud screened by the secondary separation screen flows into the secondary liquid storage tank through the secondary reflux component.

[0016] In some embodiments, a second frame is further included, the separation module is located on the second frame, the second frame is independently arranged relative to the first frame, and the primary liquid storage tank is arranged on the first frame or the second frame.

[0017] The shield equipment provided according to the embodiment of the utility model includes the mud separation device described in any one of the above items.

[0018] The shield equipment according to the embodiment of the utility model can overcome the slurry leakage problem that is easy to occur when the soil layer is too viscous by using the above-mentioned mud separation device while effectively reducing the working noise, and realize the rapid separation and transportation of debris under different formation conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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 work.

[0020] Figure 1 It is a structural schematic diagram of the mud separation device of the utility model;

[0021] Figure 2 yes Figure 1 A top view of

[0022] Figure 3 It is a structural schematic diagram of the pre-screening module in the mud separation device of the utility model;

[0023] Figure 4 yes Figure 3 Side view of

[0024] Figure 5 It is a structural schematic diagram of a separation module in the mud separation device of the utility model;

[0025] Figure 6 The utility model is a work flow chart of the mud separation device.

[0026] In the figure:

[0027] 1. Pre-screening module; 11. First frame; 12. Drum screen; 13. Vibrating screen; 14. Primary liquid storage tank; 2. Separation module; 21. Primary separation assembly; 211. Primary cyclone; 212. Primary separation screen; 213. Primary reflux component; 22. Secondary separation assembly; 221. Secondary cyclone; 222. Secondary separation screen; 223. Secondary reflux component; 23. Secondary liquid storage tank; 24. Secondary slurry pump; 3. Primary liquid storage tank; 4. Primary slurry pump; 5. Second frame. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0029] During the construction of slurry shield, the mud separation device is an indispensable supporting system of the shield equipment. This device is one of the important factors affecting the normal excavation of the shield, and directly affects many aspects such as construction progress, construction cost and environmental protection.

[0030] The mud separator is used to separate the solid and liquid of the mud discharged by the shield equipment. The device is generally arranged on the ground. Of course, it can also be arranged in the tunnel excavated by the shield equipment.

[0031] Combine the following Figure 1-Figure 6 The present invention describes a mud separation device and a shield equipment having the same according to an embodiment of the present invention.

[0032] The utility model provides a mud separation device, such as Figure 1-Figure 6 The mud separation device comprises a pre-screen module 1, a separation module 2 and a primary liquid storage tank 3, wherein the pre-screen module 1 comprises a first frame 11, a drum screen 12 and a vibrating screen 13, the drum screen 12 and the vibrating screen 13 are both located on the first frame 11 and the drum screen 12 is located upstream of the vibrating screen 13; the separation module 2 is independently arranged relative to the first frame 11; the primary liquid storage tank 3 is connected to the pre-screen module 1 and the separation module 2 respectively, the slurry after preliminary treatment by the pre-screen module 1 can flow into the primary liquid storage tank 3, and the slurry in the primary liquid storage tank 3 can flow into the separation module 2 through the conveying member.

[0033] Since the separation module 2 is independently arranged relative to the first frame 11, the drum screen 12 and the vibrating screen 13 on the first frame 11 will not drive the separation module 2 to vibrate synchronously or resonate when working, so the working noise of the equipment can be greatly reduced to a certain extent. In other words, the mud separation device can effectively avoid the problem of resonance of the separation module 2 due to the vibration of the pre-screen module 1 by separating the pre-screen module 1 that generates vibrations during operation from the separation module 2, thereby greatly reducing the noise generated by the mud separation device during operation within a certain range; at the same time, the drum screen 12 in the pre-screen module 1 has a good dehydration and separation effect, which can meet the construction needs of different complex strata, and effectively solve the problem of slurry leakage caused by blockage of the vibrating screen 13 when working in clay strata, making the separation of slag more convenient.

[0034] like Figure 1 and Figure 2 As shown, the conveying member is a pipeline, and the structure and arrangement position of the conveying member in the figure are only for illustration and are not used as actual restrictions on the conveying member. In other embodiments, the conveying member can also be a guide structure with a certain curved guide surface for guiding the flow of slurry.

[0035] It should be noted that the drum screen 12 is located upstream of the vibrating screen 13, which means that the mud flowing into the pre-screen module 1 needs to be processed by the drum screen 12 before flowing to the vibrating screen 13, and it does not limit the arrangement position of the drum screen 12 and the vibrating screen 13.

[0036] In some embodiments, the drum screen 12 may be located directly above or to the upper side of the vibrating screen 13, may be arranged side by side with the vibrating screen 13, may be located directly below or to the lower side of the vibrating screen 13, etc.

[0037] Specifically, Figure 3 As shown, at this time, the drum screen 12 is located above the vibrating screen 13, and the liquid material separated and processed by the drum screen 12 can flow directly into the vibrating screen 13 or flow into the vibrating screen 13 through relevant liquid storage equipment.

[0038] The above-mentioned drum screen 12, vibrating screen 13 and separation module 2 can all screen the waste slurry, but the screening accuracy of the three is different, among which: the drum screen 12 can screen relatively large solid particles in the waste slurry, while the vibrating screen 13 is used to screen medium-sized solid particles in the waste slurry, and the remaining smaller solid particles can be further processed by the separation module 2.

[0039] In some embodiments, a primary liquid storage tank 14 is also installed on the first frame 11. The primary liquid storage tank 14 is used to receive the mud processed by the drum screen 12. The mud in the primary liquid storage tank 14 can flow to the vibrating screen 13 through a pipeline.

[0040] The primary liquid storage tank 14 is used to receive the liquid material, i.e., the slurry, after being processed by the drum screen 12. At this time, the slag separated after being processed by the drum screen 12 can be discharged through the discharge port formed on one side of the drum screen 12.

[0041] In some embodiments, the drum screen 12 is located above the vibrating screen 13 and the primary liquid storage tank 14 is located between the drum screen 12 and the vibrating screen 13 .

[0042] like Figure 3 and Figure 4 As shown, the primary liquid storage tank 14 located below the drum screen 12 can directly receive the liquid mud screened by the drum screen 12, and then flow into the vibrating screen 13 by gravity for the next separation process.

[0043] The waste slurry is processed by the drum screen 12 and the vibrating screen 13 according to the level and then flows into the primary liquid storage tank 3. The primary liquid storage tank 3 can be connected to the separation module 2 through a conveying member.

[0044] In some embodiments, the primary liquid storage tank 3 is disposed below the vibrating screen 13. This structural design helps to quickly collect the waste pulp processed by the vibrating screen 13.

[0045] In some embodiments, the arrangement position of the primary liquid storage tank 3 is higher than the separation module 2, and the liquid waste slurry in the primary liquid storage tank 3 can flow directly into the separation module 2 through the conveying member under the action of gravity. Alternatively, the relative arrangement height of the primary liquid storage tank 3 and the separation module 2 may not be restricted, and a pump structure for conveying waste slurry should be provided on the conveying member. The pump structure can not only realize the pumping of waste slurry, but also control the conveying speed and timing of waste slurry within a certain range.

[0046] The structure of the separation module 2 of a certain embodiment is as follows Figure 5 As shown, it includes a primary separation component 21, a secondary separation component 22 and a secondary liquid storage tank 23. The conveying member is connected to the primary separation component 21, and the slurry located in the primary liquid storage tank 3 is discharged into the primary separation component 21 through the conveying member for primary separation treatment; the primary separation component 21 and the secondary separation component 22 are connected through the secondary liquid storage tank 23, and the secondary separation component 22 is connected to the conditioning and pulping system located downstream through a pipeline.

[0047] The primary separation component 21 and the secondary separation component 22 can perform two-stage screening treatment on the waste pulp flowing into the separation module 2, thereby further improving the screening effect of the waste pulp under the premise of efficient screening of the waste pulp, thereby realizing rapid recovery and circulation of the slurry. The conditioning and pulping system located downstream of the secondary separation component 22 is a device that has been disclosed in the prior art and will not be described in detail here.

[0048] It should be noted that the screening accuracy of the primary separation component 21 is different from that of the secondary separation component 22, and the screening accuracy of the primary separation component 21 is not higher than that of the secondary separation component 22. This embodiment does not limit its specific screening accuracy, and the screening accuracy can be adjusted according to the ratio of the mud and actual construction needs.

[0049] In some embodiments, the conveying member is a conveying pipeline, and a first-level slurry pump 4 is also provided on the conveying pipeline. The mud in the first-level liquid storage tank 3 is conveyed to the first-level separation component 21 through the conveying pipeline under the action of the first-level slurry pump 4. The first-level slurry pump 4 is the pump component described above.

[0050] In some embodiments, the secondary liquid storage tank 23 is arranged no higher than the secondary separation component 22. At this time, the separation module 2 also includes a secondary slurry pump 24. The slurry in the secondary liquid storage tank 23 is transported to the secondary separation component 22 under the action of the secondary slurry pump 24.

[0051] The secondary separation assembly 22 and the secondary liquid storage tank 23 are also connected via a pipeline, and the secondary slurry pump 24 is located on the pipeline.

[0052] In some embodiments, the mud separation device also includes a second frame 5, which is independently arranged relative to the first frame 11, and the separation module 2 is located on the second frame 5. The primary liquid storage tank 3 can be arranged on the first frame 11 or the second frame 5 according to the space size and actual needs.

[0053] The specific structures of the primary separation component 21 and the secondary separation component 22 are described below:

[0054] The primary separation component 21 includes a primary cyclone 211 and a primary separation screen 212, the underflow separated by the primary cyclone 211 flows into the primary separation screen 212 for primary screening, and the overflow separated by the primary cyclone 211 flows into the secondary liquid storage tank 23; and / or, the secondary separation component 22 includes a secondary cyclone 221 and a secondary separation screen 222, the underflow separated by the secondary cyclone 221 flows into the secondary separation screen 222 for secondary screening, and the overflow separated by the secondary cyclone 221 flows into the downstream conditioning and pulping system.

[0055] The first-level separation screen 212 and the second-level separation screen 222 can filter the bottom flow through the first-level cyclone 211 and the second-level cyclone 221 respectively, thereby screening the solid particulate impurities; and the screened impurities have a low water content, which can better meet the transportation requirements of the waste residue.

[0056] It should be noted that the models of the primary separation screen 212 and the secondary separation screen 222 can be the same or different, and the powers of the two can be the same or different, which are not limited in this embodiment; however, the screening accuracy of the primary separation screen 212 must be higher than the screening accuracy of the vibrating screen 13 and not higher than the screening accuracy of the secondary separation screen 222. This embodiment does not limit its specific screening accuracy, and the screening accuracy can be adjusted according to the ratio of the mud and actual construction needs.

[0057] In some embodiments, the primary cyclone 211 and the secondary cyclone 221 are arranged side by side. Figure 5 As shown, at this time, the primary cyclone 211 and the secondary cyclone 221 are both located at the top of the second frame 5, and the primary separation screen 212 and the secondary separation screen 222 are both located below the primary cyclone 211 and the secondary cyclone 221. For the sake of equipment stability, the secondary liquid storage tank 23 is located at the bottom of the second frame 5.

[0058] In some embodiments, the primary separation screen 212 and the secondary separation screen 222 are arranged one above the other and the secondary separation screen 222 is located above the primary separation screen 212 .

[0059] The actual arrangement positions and relative positions of the two separation screens can be flexibly adjusted according to the screening needs. The secondary separation screen 222 can be located directly above the primary separation screen 212, or can be located above the primary separation screen 212; alternatively, the primary separation screen 212 and the secondary separation screen 222 can be arranged side by side and respectively located under the corresponding cyclones.

[0060] In some embodiments, the first-level separation screen 212 and the second-level separation screen 222 are both screen surfaces with different filtering accuracy. The two screen surfaces are located on the same screen and arranged up and down. In this case, the screen has a double-layer screen surface structure.

[0061] Specifically, the first-stage separation screen 212 and the second-stage separation screen 222 are both used to screen solid impurities in the mud by vibration. The structure of the vibration screen 13 is a prior art and will not be described in detail here.

[0062] In some embodiments, the primary separation component 21 also includes a primary reflux component 213, which connects the primary separation screen 212 and the secondary liquid storage tank 23, and the mud screened by the primary separation screen 212 flows into the secondary liquid storage tank 23 through the primary reflux component 213; and / or, the secondary separation component 22 also includes a secondary reflux component 223, which connects the secondary separation screen 222 and the secondary liquid storage tank 23, and the mud screened by the secondary separation screen 222 flows into the secondary liquid storage tank 23 through the secondary reflux component 223.

[0063] The primary reflux component 213 and the secondary reflux component 223 can respectively recycle the liquid slurry processed by the primary separation screen 212 and the secondary separation screen 222 to reduce the loss of slurry during the separation process.

[0064] Specifically, when the secondary liquid storage tank 23 is located below the primary separation screen 212 and the secondary separation screen 222, the liquid slurry separated by the primary separation screen 212 and the secondary separation screen 222 can flow directly into the secondary liquid storage tank 23, and the primary reflux component 213 and the secondary reflux component 223 may not be provided; or, arc-shaped guide components for guiding the flow of liquid materials may be provided below the primary separation screen 212 and the secondary separation screen 222, i.e., the primary reflux component 213 and the secondary reflux component 223. The side of the arc-shaped guide component for contacting the liquid slurry is a smooth curved surface and can guide the slurry to flow directly into the secondary liquid storage tank 23, so as to avoid the situation that the liquid slurry flows laterally along the lower surface of the primary separation screen 212 and the secondary separation screen 222.

[0065] Specifically, when the secondary liquid storage tank 23 is not located below the primary separation screen 212 and the secondary separation screen 222, the primary return component 213 and the secondary return component 223 are respectively constructed as liquid mud receiving and conveying mechanisms with pipelines, so as to convey the liquid mud screened by the primary separation screen 212 and the secondary separation screen 222 to the secondary liquid storage tank 23.

[0066] The following is a detailed description of the working process of the mud separation device provided in this embodiment in combination with data. Figure 6 As shown:

[0067] The mud and slag discharged from the shield machine are pumped to the mud separation device through a pipeline by a slurry pump or the like. A pressure relief device and a buffer box are installed upstream of the drum screen 12. The waste slurry containing mud and slag flows into the buffer box after being depressurized by the pressure relief device, and then flows into the drum screen 12. The pressure relief device and the buffer box are both prior art and will not be described in detail here.

[0068] Under the screening action of the drum screen 12, solid materials larger than 10 mm are separated and discharged into the slag yard under the transportation of relevant equipment, and solid materials and liquid materials smaller than 10 mm enter the primary liquid storage tank 14 located below the drum screen 12, and then flow into the vibrating screen 13 for the next stage of separation treatment.

[0069] Under the screening process of the vibrating screen 13, solid materials larger than 3 mm are separated and discharged into the slag yard under the transportation of relevant equipment, and solid materials smaller than 3 mm and liquid materials (mud) enter the primary liquid storage tank 3 located below the vibrating screen 13 for the next step of separation and classification.

[0070] The moisture content of the above-mentioned materials discharged to the slag yard is less than 30%, which meets the requirements for automobile transportation.

[0071] The material in the primary liquid storage tank 3 flows into the primary cyclone 211 under the action of the primary slurry pump 4 and undergoes primary classification. Particles with a diameter greater than 0.074 mm (i.e., fine sand) enter the underflow under the separation action of the primary cyclone 211 and are discharged to the primary separation screen 212 for vibration dehydration; the overflow enters the secondary liquid storage tank 23. The liquid slurry separated at the primary separation screen 212 also enters the secondary liquid storage tank 23.

[0072] The sand material with a particle size of 0.074 mm to 3 mm screened by the primary separation screen 212 is separated and discharged into the slag yard under the transportation of relevant equipment. The moisture content thereof is less than 30%, meeting the requirements for automobile transportation.

[0073] The material in the secondary liquid storage tank 23 flows into the secondary cyclone 221 under the action of the secondary slurry pump 24 and undergoes secondary classification. Particles with a diameter greater than 0.020 mm (i.e., fine sand) enter the underflow under the separation action of the secondary cyclone 221 and are discharged to the secondary separation screen 222 for vibration dehydration; the overflow enters the slurry preparation and mixing system, and is sent back to the shield machine for recycling after adjustment. The liquid slurry separated at the secondary separation screen 222 will flow into the secondary liquid storage tank 23 again.

[0074] The sand powder with a particle size of 0.020 mm-0.074 mm screened by the primary separation screen 212 is separated and discharged into the slag yard under the transportation of relevant equipment. The moisture content is less than 30%, which meets the requirements of automobile transportation.

[0075] It can be understood that the working noise of the mud separation device provided in this embodiment is significantly reduced compared with other equipment used for mud separation. At the same time, the device can also help overcome the blockage problem of the vibrating screen 13 caused by the high viscosity of the clay layer, effectively alleviate the slurry leakage problem, and further improve the effect of slag separation.

[0076] An embodiment of the utility model further provides a shield equipment, comprising any of the mud separation devices described above.

[0077] Shield equipment (such as shield machines, etc.) with the above-mentioned mud separation device can overcome the slurry leakage problem that is easy to occur when the soil layer is too sticky while effectively reducing the working noise, and realize the rapid separation and transportation of debris under different formation conditions.

[0078] In actual use, one shield equipment can be equipped with at least one mud separation device, and the specific number can be adjusted according to the specific requirements of the project, which has high applicability. When there are multiple mud separation devices, the liquid storage tanks of the same level of multiple devices can be interconnected through pipelines to ensure that different mud separation devices are balanced with each other, and at the same time, it can help overcome the problem of frequent start and stop of mud separation devices.

[0079] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0080] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0081] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0082] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0083] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0084] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A mud separation device, characterized in that: include: A pre-screening module (1), the pre-screening module (1) comprising a first frame (11), a drum screen (12) and a vibrating screen (13), the drum screen (12) and the vibrating screen (13) both being located on the first frame (11) and the drum screen (12) being located upstream of the vibrating screen (13); A separation module (2), the separation module (2) being independently arranged relative to the first frame (11); A primary liquid storage tank (3), the primary liquid storage tank (3) being connected to the pre-screening module (1) and the separation module (2) respectively, the slurry after preliminary treatment by the pre-screening module (1) can flow into the primary liquid storage tank (3), and the slurry in the primary liquid storage tank (3) can flow into the separation module (2) through the conveying member.

2. The mud separation device according to claim 1, characterized in that: A primary liquid storage tank (14) is also installed on the first frame (11). The primary liquid storage tank (14) is used to receive mud processed by the drum screen (12). The mud in the primary liquid storage tank (14) can flow to the vibrating screen (13) through a pipeline.

3. The mud separation device according to claim 2, characterized in that: The drum screen (12) is located above the vibrating screen (13) and the primary liquid storage tank (14) is located between the drum screen (12) and the vibrating screen (13).

4. The mud separation device according to claim 1, characterized in that: The separation module (2) comprises a primary separation component (21), a secondary separation component (22) and a secondary liquid storage tank (23); the conveying member is connected to the primary separation component (21); the slurry in the primary liquid storage tank (3) is discharged into the primary separation component (21) through the conveying member for primary separation treatment; The primary separation component (21) and the secondary separation component (22) are connected via the secondary liquid storage tank (23), and the secondary separation component (22) is connected to a conditioning and pulping system located downstream via a pipeline.

5. The mud separation device according to claim 4, characterized in that: The conveying member is a conveying pipeline, and a primary slurry pump (4) is also arranged on the conveying pipeline. The slurry in the primary liquid storage tank (3) is conveyed to the primary separation component (21) through the conveying pipeline under the action of the primary slurry pump (4); And / or, the separation module (2) further comprises a secondary slurry pump (24), and the slurry in the secondary liquid storage tank (23) is transported to the secondary separation component (22) under the action of the secondary slurry pump (24).

6. The mud separation device according to claim 4, characterized in that: The primary separation component (21) comprises a primary cyclone (211) and a primary separation screen (212); the underflow separated by the primary cyclone (211) flows into the primary separation screen (212) for primary screening; and the overflow separated by the primary cyclone (211) flows into the secondary liquid storage tank (23); And / or, the secondary separation component (22) comprises a secondary cyclone (221) and a secondary separation screen (222), the bottom flow separated by the secondary cyclone (221) flows into the secondary separation screen (222) for secondary screening, and the overflow separated by the secondary cyclone (221) flows into the downstream conditioning and pulping system.

7. The mud separation device according to claim 6, characterized in that: The primary cyclone (211) and the secondary cyclone (221) are arranged side by side; And / or, the primary separation screen (212) and the secondary separation screen (222) are arranged up and down and the secondary separation screen (222) is located above the primary separation screen (212).

8. The mud separation device according to claim 6, characterized in that: The primary separation assembly (21) further comprises a primary return flow component (213), wherein the primary return flow component (213) connects the primary separation screen (212) and the secondary liquid storage tank (23), and the slurry screened by the primary separation screen (212) flows into the secondary liquid storage tank (23) through the primary return flow component (213); And / or, the secondary separation component (22) further comprises a secondary reflux component (223), wherein the secondary reflux component (223) connects the secondary separation screen (222) and the secondary liquid storage tank (23), and the mud screened by the secondary separation screen (222) flows into the secondary liquid storage tank (23) through the secondary reflux component (223).

9. The mud separation device according to any one of claims 1 to 8, characterized in that: It also comprises a second frame (5), the separation module (2) is located on the second frame (5), the second frame (5) is independently arranged relative to the first frame (11), and the primary liquid storage tank (3) is arranged on the first frame (11) or the second frame (5).

10. A shield equipment, characterized in that: The invention comprises the mud separation device according to any one of claims 1 to 9.

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