A sludge treatment device

Abstract

The present invention discloses a sludge treatment device, which relates to the field of sludge treatment, including a treatment container, including a shell with both top and bottom open, an outer box and an inner box located inside the shell, the inner box is located inside the outer box, and the outer box and the inner box are both slidably matched with the inner wall of the shell in the longitudinal direction; the top and bottom of the outer box are both open; the top of the inner box is open, and the bottom is provided with an openable and closable bearing mechanism, and the bearing mechanism is used to carry the sludge located inside the inner box; it also includes a first driving mechanism for driving the outer box to slide in the longitudinal direction, and a second driving mechanism for driving the inner box to slide in the longitudinal direction; it also includes a transfer assembly for transferring the sludge between the treatment container and the inner box. The present invention is used to solve the problem in the prior art that when part of the sludge is dug out for treatment, the surrounding sludge is prone to collapse or sink, so as to achieve the purpose of more fully completing the treatment of the sludge around the oil and gas production station.

Description

Technical Field

[0001] The invention relates to the field of sludge treatment, and in particular to a sludge treatment device. Background Art

[0002] Around the stations of onshore oil and gas fields, fields and soil are often polluted by oil and gas development operations and domestic water use in oil and gas stations, and such sludge needs to be treated. The treatment method in the prior art is generally to dig such sludge into a special treatment container, add corresponding reagents, and perform stirring, mixing, drying and other steps before backfilling.

[0003] The sludge around the onshore oil and gas field stations is mostly caused by fluid pollution, such as leaked drilling and completion waste fluid, overflowed formation water, domestic sewage, etc. This type of pollution has the characteristics of relatively small scope, relatively shallow depth, and relatively strong sludge fluidity. When using existing technologies to treat this type of sludge, the area around the excavated sludge area is prone to collapse or sinking, resulting in the surrounding untreated sludge being buried underneath during backfilling, which is not only not conducive to the full treatment of the sludge around the station, but also not conducive to the movement and work of some automatically operated sludge treatment equipment. Summary of the invention

[0004] The present invention provides a sludge treatment device to solve the problem in the prior art that when part of the sludge is dug out for treatment, the surrounding sludge is prone to collapse or sink, so as to achieve the purpose of more fully treating the sludge around the oil and gas production station.

[0005] The present invention is achieved through the following technical solutions:

[0006] A sludge treatment device comprises a treatment container, including a shell with open top and bottom, an outer box and an inner box located inside the shell, the inner box is located inside the outer box, and the outer box and the inner box are slidably matched with the inner wall of the shell along the longitudinal direction; the top and the bottom of the outer box are open; the top of the inner box is open, and the bottom is provided with an openable and closable supporting mechanism, and the supporting mechanism is used to support the sludge located inside the inner box; it also includes a first driving mechanism for driving the outer box to slide along the longitudinal direction, and a second driving mechanism for driving the inner box to slide along the longitudinal direction; it also includes a transfer component for transferring sludge between the treatment container and the inner box.

[0007] In the prior art, when part of the sludge is dug out for treatment, the surrounding sludge is prone to collapse or sink, and when backfilling, the surrounding untreated sludge is easily buried below, resulting in insufficient and thorough treatment of the sludge, and the collapse of the surrounding area is not conducive to the movement and operation of some automatically operated sludge treatment equipment. In order to overcome the above problems, the present invention proposes a sludge treatment device, and the treatment container in the device can adopt the relevant containers in the existing sludge treatment equipment, such as the treatment containers with stirring, mixing, drying and heating functions inside, which are not specifically limited here. The device is provided with an outer box in the shell, and an inner box in the outer box, wherein the outer box and the inner box are each slidably matched with the inner wall of the shell in the longitudinal direction, so the outer box and the inner box are also slidably matched with each other in the longitudinal direction. The upper and lower ends of the shell are open to facilitate the up and down sliding of the outer box and the inner box. The top and bottom of the outer box are open, the top of the inner box is also open, and the bottom of the inner box is provided with an openable and closable bearing mechanism; when the bearing mechanism is in an open state, the bottom of the inner box is also open; when the bearing mechanism is in a closed state, the bottom of the inner box is temporarily closed and can carry the sludge inside. The longitudinal sliding of the outer box is realized by a first driving mechanism, and the longitudinal sliding of the inner box is realized by a second driving mechanism. Both the first driving mechanism and the second driving mechanism can be realized by any device capable of realizing lifting and lowering drive in the prior art, and are not specifically limited here. In addition, the present scheme also includes a transfer assembly, through which the sludge can be transferred between the treatment container and the inner box.

[0008] When the present application is used specifically, the shell can be installed on any existing sludge treatment equipment, or installed on a walking and moving device, or rollers can be set at the bottom of the shell to make it move by itself. The shell is transported to the area above the area where the sludge needs to be treated, and the shell is placed on the ground. At this time, the outer box and the inner box are both in the initial state of being located inside the shell in terms of height, and the bearing mechanism is in the open state. After that, the outer box and the inner box are driven to move downward together, so that the outer box and the inner box are inserted into the sludge inside the contaminated area to the set depth, the bearing mechanism is closed, the outer box is kept stationary, the inner box is driven to move upward, and the inner box and the sludge inside it are lifted; the sludge inside the inner box is then transferred to the treatment container by the transfer component for treatment. After the treatment is completed, the treated sludge is transferred from the treatment container to the inner box by the transfer component, and the inner box is driven downward until the inner box is located inside the outer box in height; the bearing mechanism is opened, and the outer box and the inner box are driven upward and reset to the initial state.

[0009] It can be seen that during the sludge treatment process through the present application, the outer box always remains motionless underground, so the box wall of the outer box can effectively prevent the collapse and sinking of the surrounding sludge, avoiding the problem of burying the surrounding untreated sludge below during backfilling, and achieving a more sufficient and complete treatment of the soil in the contaminated area around the oil and gas production station. At the same time, it also avoids the problem of inconvenience in the movement and work of related equipment due to local collapse.

[0010] Furthermore, the bearing mechanism includes a first groove opened at the bottom end of the side wall of the inner box, a plurality of winding wheels with torsion springs located in the first groove, a geotextile wound on the winding wheel, a cutting plate connected to the bottom end of the inner box along a transverse sliding connection, and a third driving mechanism for driving the cutting plate to slide, and the end of the geotextile is connected to the cutting plate.

[0011] In this solution, when the bearing mechanism needs to be in an open state, the geotextile is wound around the winding wheel under the action of the torsion spring and the cutting plate is stored in the first groove; when the bearing mechanism needs to be closed, the third driving mechanism drives the cutting plate to move horizontally at the bottom of the inner box until the cutting plate moves to the other end of the bottom of the inner box. During this process, the cutting plate cuts the soil and drives the geotextile to be spread on the bottom of the inner box, completing the temporary closure of the bottom of the inner box, making it easier to lift out the sludge inside the inner box.

[0012] Furthermore, the inner box side wall is also provided with a second groove opposite to the first groove, and the second groove is used to accommodate the cutting plate; the axes of the first groove and the second groove are parallel.

[0013] In this solution, when the cutting plate moves to the other end of the bottom of the inner box, it can enter the second groove, thereby further ensuring the stability of the supporting mechanism when it is closed.

[0014] Furthermore, the third driving mechanism includes a slide groove opened on the inner walls of the inner box on both sides, a linear reciprocating device located in the slide groove, and a slider connected to the linear reciprocating device; the slider is fixedly connected to the cutting plate, and the two ends of the slide groove are respectively connected to the first groove and the second groove.

[0015] In this solution, the slider is driven to slide along the corresponding slide groove by the linear reciprocating device, thereby driving the cutting plate to move from both sides at the same time. In addition, since the two ends of the slide groove are connected to the first groove and the second groove respectively, the two side edges of the geotextile can also enter the slide grooves on both sides respectively, further improving the stability of the bearing mechanism when it is closed.

[0016] Furthermore, the first driving mechanism includes a first rack arranged on the outer wall of the outer box, a first gear meshing with the first rack, and a first power device for driving the first gear to rotate; the axis of the first rack is distributed longitudinally; and the first gear is arranged in the side wall of the shell.

[0017] In this solution, the first power device drives the first gear to rotate forward or reverse, and then drives the first rack to perform lifting movement, thereby realizing the lifting control of the outer box.

[0018] Furthermore, the second driving mechanism includes an extension located on the outer wall of the inner box, a second rack arranged on the outer wall of the extension, a second gear meshing with the second rack, and a second power device for driving the second gear to rotate; the side wall of the outer box is provided with through grooves corresponding to the extension one by one, the axis of the through grooves is distributed in the longitudinal direction and the top of the through grooves is open, and the extension is slidably fitted in the corresponding through grooves; the second gear is arranged in the side wall of the shell.

[0019] Since the inner box is located inside the outer box, it is difficult to directly achieve sliding fit between the inner box and the shell. In order to overcome this problem, this solution sets a number of through grooves on the side wall of the outer box, each of which is slidably fitted with an extension part, and the extension part is fixedly connected to the inner side and extends outward from the outer wall of the inner box, and then a second rack is set on the extension part. This solution drives the second gear to rotate forward or reverse by the second power device, and then drives the second rack to perform lifting and lowering movements, so that the lifting and lowering of the inner box can be controlled separately without interfering with the state of the outer box.

[0020] Furthermore, a plurality of rotating shafts and pushing members fixedly connected to the rotating shafts are arranged on the top of the outer box. The rotating shafts are driven to rotate by a third power device, and the pushing members are used to rotate to the top of the inner box.

[0021] In the process of driving the outer box and the inner box to go down together and insert them into the soil, if the outer box and the inner box are driven separately, the downward speeds of the two are likely to be different, and it is more likely that they will get stuck with each other. In order to overcome this problem, this solution sets a number of rotating shafts on the top of the outer box, and usually drives the pushing parts on the rotating shafts to be completely located at the top of the outer box through the third power device; when the outer box and the inner box need to go down together and insert them into the soil, the third power device drives the rotating shafts to rotate, so that the pushing parts partially or completely rotate to the top of the inner box, and then the first driving mechanism drives the outer box to move downward, and the pushing parts push the inner box downward, so that the inner box and the outer box can be synchronously moved downward, which can significantly reduce the problem of mutual blocking between the inner box and the outer box.

[0022] Furthermore, the transfer assembly includes a base plate fixedly connected to the shell and a slide rail located on the base plate; the processing container is slidably fitted on the slide rail; the transfer assembly also includes a box door opened on the side wall of the inner box, and the box door is located on the side of the inner box facing the direction of the base plate.

[0023] In this solution, two or more processing containers can be set on the bottom plate. When one processing container is docked with the inner box, the other processing containers can perform normal sludge treatment work, such as adding medicine, stirring, heating and drying, etc., thereby realizing cross-operation of sludge treatment and significantly improving sludge treatment efficiency. When a processing container needs to be docked with the inner box, it is slid to a position facing the box door, and the box door is opened at this time, so that the sludge in the box door can enter the processing container, or the sludge in the inner box is manually pushed into the processing container.

[0024] Furthermore, a slide plate is slidably matched on the slide rail, and a load plate is connected to the slide plate through a lifting mechanism, and the processing container is mounted on the load plate. This solution makes the height of the processing container adjustable through the lifting mechanism, so that it is convenient for it to be better docked with the inner box; for example, when it is necessary to move the sludge from the inner box to the processing container, the height of the processing container is adjusted so that its top is just located at the bottom of the inner box door; when it is necessary to move the sludge from the processing container to the inner box, the height of the processing container is adjusted so that the processing container is raised above the top of the inner box, so that the processed sludge is convenient to be dumped.

[0025] Furthermore, the processing container is rotatably connected to the carrier plate, and further includes a fourth power device for driving the processing container to rotate. In this solution, the fourth power device drives the processing container to rotate, so that after the processing container is raised to the top of the inner box, it can be directly rotated to the open end facing the top of the inner box, and the treated sludge can be quickly dumped into the inner box.

[0026] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0027] 1. In the sludge treatment device of the present invention, during the treatment process of the sludge, the outer box always remains motionless underground, so the box wall of the outer box can effectively prevent the collapse and sinking of the surrounding sludge, avoiding the problem of burying the surrounding untreated sludge below during backfilling, and achieving more sufficient and complete treatment of the soil in the contaminated area around the oil and gas production station, while also avoiding the problem of inconvenience in walking and working of related equipment due to local collapse.

[0028] 2. The sludge treatment device of the present invention, after the inner box is in place, the soil is cut by the cutting plate, and the geotextile is spread on the bottom of the inner box to complete the temporary closure of the bottom of the inner box, so as to facilitate the removal of the sludge inside the inner box.

[0029] 3. A sludge treatment device of the present invention drives the second gear to rotate forward or reversely through the second power device, and then drives the second rack to perform lifting movement, so that the lifting and lowering of the inner box can be controlled independently without interfering with the state of the outer box.

[0030] 4. The sludge treatment device of the present invention can realize the synchronous downward movement of the inner box and the outer box, and can significantly reduce the problem of mutual obstruction between the inner box and the outer box.

[0031] 5. In the sludge treatment device of the present invention, two or more treatment containers can be arranged on the bottom plate, thereby realizing cross-operation of sludge treatment and significantly improving the sludge treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0033] Figure 1 is a cross-sectional view of a specific embodiment of the present invention;

[0034] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0035] Figure 3 It is a cross-sectional view of the outer box and the inner box in a specific embodiment of the present invention when they move downward to the bottom of the travel together;

[0036] Figure 4 It is a cross-sectional view of a specific embodiment of the present invention when the inner box moves upward to the top of the stroke alone;

[0037] Figure 5 It is a partial cross-sectional view of the bottom end of the inner box in a specific embodiment of the present invention;

[0038] Figure 6 It is a structural schematic diagram of a specific embodiment of the present invention;

[0039] Figure 7 for Figure 6 A partial enlarged view of point B in the middle.

[0040] Marks and corresponding parts names in the attached drawings:

[0041] 1-shell, 2-outer box, 3-inner box, 4-first groove, 5-winding wheel, 6-geotextile, 7-cutting plate, 8-second groove, 9-slide, 10-linear reciprocating device, 11-slider, 12-first rack, 13-first gear, 14-extension part, 15-second rack, 16-baffle, 17-bottom plate, 18-slide rail, 19-box door, 20-slide plate, 21-lifting mechanism, 22-bearing plate, 23-rotating shaft, 24-thrust member, 25-fourth power equipment, 100-processing container. DETAILED DESCRIPTION

[0042] In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the examples and the accompanying drawings. The schematic embodiments of the present invention and the description thereof are only used to explain the present invention and are not intended to limit the present invention. In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application.

[0043] Example 1

[0044] like Figures 1 to 7 A sludge treatment device shown includes a treatment container 100, including a shell 1 with open top and bottom, an outer box 2 and an inner box 3 located inside the shell 1, the inner box 3 is located inside the outer box 2, and the outer box 2 and the inner box 3 are slidably matched with the inner wall of the shell 1 along the longitudinal direction; the top and bottom of the outer box 2 are open; the top of the inner box 3 is open, and the bottom is provided with an openable and closable supporting mechanism, and the supporting mechanism is used to support the sludge located inside the inner box 3; it also includes a first driving mechanism for driving the outer box 2 to slide along the longitudinal direction, and a second driving mechanism for driving the inner box 3 to slide along the longitudinal direction; it also includes a transfer component for transferring sludge between the treatment container 100 and the inner box 3.

[0045] The bearing mechanism includes a first groove 4 opened at the bottom end of the side wall of the inner box 3, a plurality of winding wheels 5 with torsion springs located in the first groove 4, a geotextile 6 wound on the winding wheel 5, a cutting plate 7 connected to the bottom end of the inner box 3 along the transverse sliding direction, and a third driving mechanism for driving the cutting plate 7 to slide, and the end of the geotextile 6 is connected to the cutting plate 7.

[0046] The side wall of the inner box 3 further defines a second groove 8 opposite to the first groove 4 , and the second groove 8 is used to accommodate the cutting plate 7 ; the axes of the first groove 4 and the second groove 8 are parallel.

[0047] like Figure 5 As shown, the third driving mechanism includes a slide groove 9 provided on the inner walls of the inner box 3 on opposite sides, a linear reciprocating device 10 located in the slide groove 9, and a slider 11 connected to the linear reciprocating device 10; the slider 11 is fixedly connected to the cutting plate 7, and the two ends of the slide groove 9 are respectively connected to the first groove 4 and the second groove 8. The linear reciprocating device 10 in this embodiment is preferably implemented by a transmission belt or a transmission chain.

[0048] The first driving mechanism includes a first rack 12 arranged on the outer wall of the outer box 2, a first gear 13 meshing with the first rack 12, and a first power device for driving the first gear 13 to rotate; the axis of the first rack 12 is distributed in the longitudinal direction; the first gear 13 is arranged in the side wall of the housing 1. The second driving mechanism includes an extension 14 located on the outer wall of the inner box 3, a second rack 15 arranged on the outer wall of the extension 14, a second gear meshing with the second rack 15, and a second power device for driving the second gear to rotate; the side wall of the outer box 2 is provided with a through groove corresponding to the extension 14, the axis of the through groove is distributed in the longitudinal direction and the top of the through groove is open, the extension 14 is slidably fitted in the corresponding through groove; the second gear is arranged in the side wall of the housing 1. Of course, the length of the through groove is less than the height of the outer box 2.

[0049] A plurality of rotating shafts 23 and a pushing member 24 fixedly connected to the rotating shafts 23 are arranged on the top of the outer box 2. The rotating shafts 23 are driven to rotate by a third power device, and the pushing member 24 is used to rotate to the top of the inner box 3.

[0050] In a more preferred embodiment, the bottom end of the outer box 2 is configured to be in a pointed cone shape, so as to facilitate more efficient insertion into the sludge to be treated.

[0051] In a more preferred embodiment, Figure 2 As shown, a baffle 16 is provided at the notch of the first groove 4, and the baffle 16 does not hinder the cutting plate 7 from entering or exiting.

[0052] In a more preferred embodiment, the cutting plate 7 is wedge-shaped or cone-shaped, which makes it easier to cut the underground soil and drive the geotextile to cover the bottom of the inner box.

[0053] When this embodiment is used, a roller with a brake can be installed at the bottom of the shell for independent use, or the shell can be installed on any existing sludge treatment equipment, or installed on a moving device for use.

[0054] Example 2

[0055] A sludge treatment device, based on Example 1, as Figure 6 As shown, the transfer assembly includes a bottom plate 17 fixedly connected to the shell 1 and a slide rail 18 located on the bottom plate 17; the processing container 100 is slidably fitted on the slide rail 18; the transfer assembly also includes a box door 19 opened on the side wall of the inner box 3, and the box door 19 is located on the side of the inner box 3 facing the direction of the bottom plate 17.

[0056] The slide rail 18 is slidably matched with a slide plate 20 . The slide plate 20 is connected with a carrying plate 22 via a lifting mechanism 21 . The processing container 100 is mounted on the carrying plate 22 .

[0057] In this embodiment, the sliding of the slide plate 20 on the slide rail 18 can be controlled by any existing driving method, which is not specifically limited here.

[0058] In this embodiment, there are two sets of slide plates 20, i.e., the processing containers 100 matched thereon, which can realize cross-operation and improve the sludge processing efficiency.

[0059] More preferably, the processing container 100 is rotatably connected to the supporting plate 22; and further comprises a fourth power device 25 for driving the processing container 100 to rotate, such as a servo motor.

[0060] Example 3

[0061] A sludge treatment method, implemented based on the sludge treatment device in embodiment 1 or 2, comprises the following steps:

[0062] S1, move the shell 1 to the area where the sludge needs to be treated, place the shell on the ground, make the outer box 2 and the inner box 3 both in the initial state of being located inside the shell in terms of height, and the bearing mechanism is in the initial state of being opened; the initial state is as follows Figure 1 and Figure 2 As shown;

[0063] S2, the third power device drives the rotating shaft 23 to rotate, so that the push member 24 rotates to Figure 7 The state shown, located at the top of the inner box 3;

[0064] S3, the first gear 13 is driven by the first power device to rotate, driving the outer box 2 and the inner box 3 to move downward together, so that the outer box and the inner box are inserted into the sludge in the contaminated area to a set depth; at this time, Figure 3 As shown;

[0065] S4, closing the bearing mechanism;

[0066] S5, the third power device drives the rotating shaft 23 to rotate, so that the push member 24 is completely reset to the top of the outer box 2; the second power device drives the second gear to rotate, so that the inner box 3 moves upward alone, raising the inner box and the sludge inside; at this time, Figure 4 As shown;

[0067] S6, the sludge in the inner box 3 is transferred to a processing container 100 by the transfer component for processing; during the processing: the processing container 100 moves toward the end on the bottom plate 17 to make way for the station facing the shell 1; another processing container 100 moves to the station facing the shell 1, and the sludge that has been processed in the other processing container 100 is transferred to the inner box 3 by the transfer component;

[0068] S7, driving the inner box to move downward until the inner box is located inside the outer box in height;

[0069] S8, open the bearing mechanism, backfill; drive the outer box and the inner box upward and reset to Figure 1 The initial state shown; by analogy, the device can process and backfill sludge while walking, and there is no need for the device to wait for the treatment process in situ, which can significantly improve the working efficiency.

[0070] In a more preferred embodiment, the process of closing the supporting mechanism in step S4 includes:

[0071] The slider 11 is driven by the linear reciprocating device 10 to move in the corresponding slide groove 9, driving the cutting plate 7 to move from the first groove 4 to the second groove 8, driving the geotextile 6 to unfold and lay on the bottom of the inner box 3; when the cutting plate 7 enters the second groove 8, the two sides of the geotextile 6 are respectively located in the slide grooves 9 on both sides.

[0072] In addition, the process of opening the bearing mechanism is to make the linear reciprocating device 10 drive the slider 11 to move in the reverse direction, and under the action of the torsion spring, the winding wheel 5 will also rotate in the reverse direction to retract the geotextile 6.

[0073] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0074] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In addition, the term "connected" used in this article can be directly connected or indirectly connected via other components without special explanation.

Claims

1. A sludge treatment device, comprising a treatment container (100), characterized in that: The invention comprises a shell (1) with an open top and a closed bottom, an outer box (2) and an inner box (3) located inside the shell (1), the inner box (3) being located inside the outer box (2), and the outer box (2) and the inner box (3) being slidably matched with the inner wall of the shell (1) in the longitudinal direction; the outer box (2) is open at the top and the bottom; the inner box (3) is open at the top and is provided with an openable and closable bearing mechanism at the bottom, the bearing mechanism being used to bear the sludge located inside the inner box (3); the invention also comprises a first driving mechanism for driving the outer box (2) to slide in the longitudinal direction, and a second driving mechanism for driving the inner box (3) to slide in the longitudinal direction; and the invention also comprises a transfer assembly for transferring the sludge between the treatment container (100) and the inner box (3); The first driving mechanism comprises a first rack (12) arranged on the outer wall of the outer box (2), a first gear (13) meshing with the first rack (12), and a first power device for driving the first gear (13) to rotate; the axis of the first rack (12) is distributed in the longitudinal direction; the first gear (13) is arranged in the side wall of the housing (1); The second driving mechanism comprises an extension portion (14) located on the outer wall of the inner box (3), a second rack (15) arranged on the outer wall of the extension portion (14), a second gear meshing with the second rack (15), and a second power device for driving the second gear to rotate; the side wall of the outer box (2) is provided with through grooves corresponding to the extension portions (14), the axes of the through grooves are distributed in the longitudinal direction and the top ends of the through grooves are open, and the extension portions (14) are slidably fitted in the corresponding through grooves; the second gear is arranged in the side wall of the housing (1).

2. A sludge treatment device according to claim 1, characterized in that: The bearing mechanism comprises a first groove (4) formed at the bottom end of the side wall of the inner box (3), a plurality of winding wheels (5) with torsion springs located in the first groove (4), a geotextile (6) wound on the winding wheels (5), a cutting plate (7) connected to the bottom end of the inner box (3) in a transverse sliding manner, and a third driving mechanism for driving the cutting plate (7) to slide, wherein the end of the geotextile (6) is connected to the cutting plate (7).

3. A sludge treatment device according to claim 2, characterized in that: The side wall of the inner box (3) is also provided with a second groove (8) opposite to the first groove (4), the second groove (8) being used to accommodate the cutting plate (7); the axes of the first groove (4) and the second groove (8) are parallel.

4. A sludge treatment device according to claim 3, characterized in that: The third driving mechanism comprises a slide groove (9) provided on inner walls of opposite sides of the inner box (3), a linear reciprocating device (10) located in the slide groove (9), and a slider (11) connected to the linear reciprocating device (10); the slider (11) is fixedly connected to the cutting plate (7), and two ends of the slide groove (9) are respectively connected to the first groove (4) and the second groove (8).

5. A sludge treatment device according to claim 1, characterized in that: A plurality of rotating shafts (23) and a pushing member (24) fixedly connected to the rotating shafts (23) are arranged on the top of the outer box (2); the rotating shafts (23) are driven to rotate by a third power device; and the pushing member (24) is used to rotate to the top of the inner box (3).

6. A sludge treatment device according to claim 1, characterized in that: The transfer assembly comprises a bottom plate (17) fixedly connected to the shell (1) and a slide rail (18) located on the bottom plate (17); the processing container (100) is slidably engaged on the slide rail (18); the transfer assembly also comprises a box door (19) provided on a side wall of the inner box (3), the box door (19) being located on a side of the inner box (3) facing the bottom plate (17).

7. A sludge treatment device according to claim 6, characterized in that: A slide plate (20) is slidably matched on the slide rail (18), a carrying plate (22) is connected to the slide plate (20) via a lifting mechanism (21), and the processing container (100) is mounted on the carrying plate (22).

8. A sludge treatment device according to claim 7, characterized in that: The processing container (100) is rotatably connected to the supporting plate (22), and further comprises a fourth power device (25) for driving the processing container (100) to rotate.

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