Deep dehydration and separation device for sludge

Abstract

The invention relates to the field of sludge dewatering, and particularly discloses a sludge deep dewatering and separating device which comprises a stacked spiral body formed by staggering and stacking a plurality of fixed rings and movable rings, and a spiral conveying piece penetrating through the stacked spiral body, the stacked spiral body is used for forming a sludge dewatering chamber, and the spiral conveying piece is arranged in the sludge dewatering chamber; the rotary conveying piece comprises a transmission shaft, a spiral piece and a protruding part arranged on the spiral piece. The protruding part is used for forming a scraping line with the length larger than the thickness of the spiral piece. And the driving piece is used for driving the transmission shaft to rotate around a movable axis and enabling the movable axis to move to a first displacement position and a second displacement position. The sludge dewatering device has the advantages that the sludge cleaning efficiency is greatly improved, and the normal sludge dewatering process is guaranteed.

Description

Technical Field

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

[0002] Sludge dewatering is commonly used in sludge dewatering, among which the spiral stacking sludge dewatering machine is widely used. The working principle of the spiral stacking sludge dewatering machine is that the fixed ring and the movable ring are staggered to form a spiral body, and the spiral shaft runs through the spiral body. The front end of the spiral shaft is the concentration part, and the rear end is the dewatering part. The filter gap formed between the fixed ring and the movable ring and the pitch of the spiral shaft gradually decrease from the concentration part to the dewatering part. The rotation of the spiral shaft not only pushes the sludge from the concentration part to the dewatering part, but also continuously drives the movable ring to clean the filter gap to prevent blockage. After the sludge is concentrated, it is transported to the dewatering part. In the process of moving forward, as the filter gap and the pitch gradually become smaller, and under the action of the pressure plate, a huge internal pressure is generated, and the volume continues to shrink, achieving the purpose of full dehydration.

[0003] However, during the dehydration process, the spiral shaft cannot directly contact the inner wall of the spiral body, otherwise it will cause great wear, noise and loss. Therefore, some sludge will adhere to the inside of the spiral body. After a long time of use, a layer of sludge will adhere to the inside of the spiral body. If it is not cleaned in time, the sludge adhered to the inside of the spiral body will contact the spiral shaft, affecting the loss of the spiral shaft transmission and reducing the total amount of sludge that can be accommodated in the spiral body, resulting in increased transmission loss and reduced sludge dehydration speed. Summary of the invention

[0004] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0005] In order to solve the technical problems mentioned in the above background technology section, some embodiments of the present application provide a sludge deep dehydration separation device, including a stacked screw body formed by staggered stacking of multiple fixed rings and movable rings and a spiral conveyor penetrating the stacked screw body; the stacked screw body is used to form a sludge dehydration chamber, and the spiral conveyor is arranged in the sludge dehydration chamber; the rotating conveyor includes a transmission shaft, a spiral sheet, and a protrusion arranged on the spiral sheet; the protrusion is used to form a scraping line with a length greater than the thickness of the spiral sheet; the sludge deep dehydration separation device also includes: A driving member, used for driving the transmission shaft to rotate around a movable axis and for moving the movable axis to a first displacement position and a second displacement position; wherein the extension direction of the movable axis matches the extension direction of the sludge dewatering chamber; the extension direction of the scraping wire matches the extension direction of the movable axis; when the movable axis moves to the first displacement position, the scraping wire and the spiral sheet are separated from the inner wall surface of the sludge dewatering chamber; when the movable axis moves to the second displacement position, the scraping wire abuts against the inner wall surface of the sludge dewatering chamber.

[0006] By adopting the above-mentioned technical solution, when the movable axis is located at the second displacement position, the scraping wire contacts the inner wall surface of the sludge dewatering chamber. Then, when the transmission shaft rotates around the movable axis, the scraping wire will scrape off the sludge adhered to the inner wall surface of the sludge dewatering chamber. Therefore, when too much sludge is accumulated in the sludge dewatering chamber, it can be cleaned up to ensure the speed of the sludge dewatering treatment.

[0007] Optionally, the movable axis located at the first displacement position and the movable axis located at the second displacement position are both arranged at the center of the sludge dewatering chamber and are parallel to the center line of the sludge dewatering chamber.

[0008] Optionally, the sludge dewatering chamber extends along a feeding dimension, and the feeding dimension is inclined; when the movable axis is located at the first displacement position, the driving member transports the sludge in the sludge dewatering chamber along the feeding dimension through the transmission shaft and the spiral blade; when the movable axis is located at the second displacement position, the driving member transports the sludge in the sludge dewatering chamber away from the feeding dimension through the transmission shaft and the spiral blade; wherein, when the sludge is transported along the feeding dimension, the height position of the sludge gradually increases; when the sludge is transported away from the feeding dimension, the height position of the sludge gradually decreases.

[0009] By adopting the above-mentioned technical solution, when the movable axis is located at the second displacement position, the protrusion abuts against the inner wall surface of the sludge dewatering chamber, so the sludge on the inner wall surface of the sludge dewatering chamber will be scraped off, and then due to the height position of the sludge dewatering chamber, the scraped off sludge is transported away from the feeding dimension, and the height position in the direction away from the feeding dimension is gradually reduced, which is conducive to the discharge and recovery of the scraped off sludge.

[0010] Optionally, a flexible connector is provided on the spiral plate, the flexible connector is connected to the spiral piece, and a control chamber is formed between the flexible connector and the spiral piece; the flexible connector is externally connected to a pump body control component, and the pump body control component is used to inject a fluid medium into the control chamber to expand and contract the control chamber; the flexible connector is used to form a pushing surface, and the pushing surface covers the spiral piece; when the control chamber expands and contracts, the pushing surface moves relative to the spiral piece.

[0011] By adopting the above-mentioned technical solution, the pushing surface on the flexible connecting member can move relative to the spiral blade. Then, when the movable axis is located at the second displacement position, the pushing surface can be moved relative to the spiral blade. Then, the sludge originally adhering to the pushing surface will fall off the pushing surface due to inertia, further increasing the processing of difficult-to-process sludge.

[0012] Optionally, the driving member includes: a first power component, a second power component and a supporting component; the first power component and the second power component are both arranged on the supporting component; the first power component is used to drive the transmission shaft to rotate; the second power component is used to drive the transmission shaft to move; the axis of the transmission shaft matches the movable axis.

[0013] Optionally, the driving member also includes an elastic component, and the second power component is connected to the transmission shaft through the elastic component, so that the second power component drives the transmission shaft to move through the elastic component; when the second power component drives the elastic component to move, the force with which the protrusion on the transmission shaft abuts against the inner wall surface of the sludge dewatering chamber can be increased or decreased through the moving position of the elastic component.

[0014] Optionally, a guide component is provided on the support component, and the transmission shaft is connected to the support component via the guide component; the guide component is used to form a sliding connection between the first displacement position and the second displacement position for the transmission shaft to move relative to the support component.

[0015] Optionally, a first sludge discharge outlet is formed at one end of the sludge dewatering chamber; a sludge inlet and a second sludge discharge outlet are formed at the other end of the sludge dewatering chamber; wherein, the sludge inlet and the first sludge discharge outlet are distributed along the feeding direction; when the movable axis is located at the first displacement position, the first sludge discharge outlet and the sludge inlet are opened, and the second sludge discharge outlet is closed; when the movable axis is located at the second displacement position, the first sludge discharge outlet and the second sludge discharge outlet are opened, and the sludge inlet is closed.

[0016] Optionally, the flexible connector is connected to both ends of the spiral sheet so that the spiral sheet contacts the sludge through the flexible connector; when the movable axis is located at a first displacement position, the flexible connector fits the spiral sheet so that the control chamber contracts; when the movable axis is located at a second displacement position, the flexible connector is separated from the spiral sheet, and at this time, the control chamber contracts and expands intermittently.

[0017] Optionally, the flow medium is water.

[0018] The beneficial effects of the present invention are:

[0019] The setting of the protrusion can increase the range of cleaning the inner wall surface of the sludge dewatering chamber, and the setting of the movable axis at the first displacement position and the second displacement position can enable the spiral blade to squeeze and dewater the sludge normally, and can also enable the spiral blade to clean the inner wall surface of the sludge dewatering chamber through the protrusion, thereby greatly improving the efficiency of cleaning the sludge and ensuring the normal sludge dewatering process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The drawings and descriptions of the exemplary embodiments of this application are used to explain this application and do not constitute an improper limitation on this application.

[0021] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0022] In the attached picture:

[0023] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application, mainly showing the state when some fixed rings and floating rings are installed;

[0024] Figure 2 yes Figure 1 A magnified schematic diagram of part A;

[0025] Figure 3It is a structural schematic diagram of a part of the embodiment, mainly showing the Figure 1 structure;

[0026] Figure 4 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the sludge inlet and the second sludge discharge outlet;

[0027] Figure 5 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the pump body control component and some surrounding parts;

[0028] Figure 6 It is a schematic structural diagram of a part of the embodiment, mainly showing the structure of the spiral sheet and some surrounding parts;

[0029] Figure 7 It is a structural schematic diagram of a part of the embodiment, mainly showing the driving member and some surrounding parts structure;

[0030] Figure 8 It is a structural schematic diagram of a part of the embodiment, mainly showing the Figure 7 structure;

[0031] Fig. 9 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the first gear and the second gear;

[0032] Fig.10 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the elastic member and some surrounding parts;

[0033] Fig.11 It is a structural diagram of a part of the embodiment, mainly showing Figure 5 The cross-sectional structure of

[0034] Fig.12 yes Fig.11 A magnified schematic diagram of part B;

[0035] Fig.13 yes Fig.11 A magnified schematic diagram of part C;

[0036] Fig.14 It is a schematic structural diagram of a part of the embodiment, mainly showing the structure of the protrusion and some surrounding parts. DETAILED DESCRIPTION

[0037] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0038] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0039] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0040] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0041] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0042] Reference Figure 1-14 As shown, an embodiment of the present application discloses a sludge deep dehydration and separation device.

[0043] Example 1

[0044] A sludge deep dehydration and separation device comprises a spiral body formed by staggered stacking of a plurality of fixed rings 1 and movable rings 2 and a spiral conveyor 3 penetrating the spiral body. The spiral body is used to form a sludge dehydration chamber 21, and the spiral conveyor 3 is arranged in the sludge dehydration chamber 21. The sludge dehydration and separation is achieved by a spiral stack sludge dehydrator, and the fixed ring 1 and the movable ring 2 are both part of the falling sludge dehydrator, which will not be elaborated again.

[0045] The rotating conveyor includes a transmission shaft 31, a spiral sheet 32, and a protrusion 33 arranged on the spiral sheet 32. The protrusion 33 is used to form a scraping line whose length is greater than the thickness of the spiral sheet 32, wherein the protrusion 33 adopts a plate body, the protrusion 33 is fixed to the spiral sheet 32, a plurality of protrusions 33 are provided, and a plurality of protrusions 33 are provided at the edge of the spiral sheet 32. The scraping line formed by the protrusion 33 is used to abut against the inner wall surface of the sludge dewatering chamber 21. The protrusion 33 can directly form a scraping line, or it can form a scraping surface first, and the scraping surface and the inner wall surface of the sludge dewatering chamber 21 are in line contact or surface contact to form a scraping line. The length of the scraping line is greater than the thickness of the spiral sheet 32, for example, the range of contact between the scraping line and the inner wall surface of the sludge dewatering chamber 21 is greater than the range of direct contact between the spiral sheet 32 ​​and the inner wall surface of the sludge dewatering chamber 21.

[0046] The sludge deep dehydration and separation device also includes: a driving member 4. The driving member 4 is used to drive the transmission shaft 31 to rotate around a movable axis and to move the movable axis to a first displacement position and a second displacement position. The extension direction of the movable axis matches the extension direction of the sludge dehydration chamber 21; the extension direction of the scraping line matches the extension direction of the movable axis; when the movable axis moves to the first displacement position, the scraping line and the spiral sheet 32 ​​are separated from the inner wall surface of the sludge dehydration chamber 21; when the movable axis moves to the second displacement position, the scraping line abuts against the inner wall surface of the sludge dehydration chamber 21, and the scraping line contacts the inner wall surface of the sludge dehydration chamber 21, then when the transmission shaft 31 drives the spiral sheet 32 ​​to rotate, the scraping line will clean the inner wall surface of the sludge dehydration chamber 21.

[0047] The driving component 4 in this embodiment adopts a driving motor and a mechanical arm, wherein a fixed plate is provided on the mechanical arm, the driving motor is provided on the fixed plate, and the output end of the driving motor is connected to the transmission shaft 31, so that the driving motor drives the transmission shaft 31 to rotate, and the mechanical arm drives the driving motor to move, so as to realize the movement of the movable axis, wherein the movable axis is the central axis of the transmission shaft 31.

[0048] By adopting the above-mentioned technical scheme, when the movable axis is located at the second displacement position, the scraping wire contacts the inner wall surface of the sludge dewatering chamber 21, then when the transmission shaft 31 rotates around the movable axis, the scraping wire will scrape off the sludge adhered to the inner wall surface of the sludge dewatering chamber 21, so that when too much sludge is accumulated in the sludge dewatering chamber 21, it can be cleaned to ensure the speed of sludge dewatering treatment, and avoid part of the sludge adhering to the inner wall surface of the sludge dewatering chamber 21, resulting in part of the sludge being unable to be output to the outside. After a long time of use, the volume of effective sludge treatment in the sludge dewatering chamber 21 will be reduced, thereby improving the efficiency of sludge dewatering treatment.

[0049] Specifically, the movable axis at the first displacement position and the movable axis at the second displacement position are both arranged at the center of the sludge dewatering chamber 21 and are parallel to the center line of the sludge dewatering chamber 21. By arranging the movable axis parallel to the center line of the sludge dewatering chamber 21, the scraping wire can be evenly contacted with the inner wall surface of the sludge dewatering chamber 21.

[0050] Specifically, the sludge dewatering chamber 21 extends along the feeding dimension, and the feeding dimension is arranged obliquely, that is, multiple fixed rings 1 and multiple floating rings are arranged obliquely. When the movable axis is located at the first displacement position, the driving member 4 causes the sludge to be transported along the feeding dimension in the sludge dewatering chamber 21 through the transmission shaft 31 and the spiral blade 32. When the movable axis is located at the second displacement position, the driving member 4 causes the sludge to be transported away from the feeding dimension in the sludge dewatering chamber 21 through the transmission shaft 31 and the spiral blade 32. Among them, when the sludge is transported along the feeding dimension, the height position of the sludge gradually increases. When the sludge is transported away from the feeding dimension, the height position of the sludge gradually decreases.

[0051] By adopting the above-mentioned technical solution, when the movable axis is located at the second displacement position, the protrusion 33 abuts against the inner wall surface of the sludge dewatering chamber 21, so the sludge on the inner wall surface of the sludge dewatering chamber 21 will be scraped off, and then due to the height position of the sludge dewatering chamber 21, the scraped sludge is transported away from the feeding dimension, and the height position in the direction away from the feeding dimension is gradually reduced, and the effect of gravity is used to facilitate the discharge and recycling of the scraped sludge.

[0052] Example 2

[0053] The difference from Example 1 is that a flexible connector 5 is provided on the spiral plate. The flexible connector 5 is connected to the spiral sheet 32, and a control chamber 51 is formed between the flexible connector 5 and the spiral sheet 32. In this embodiment, the flexible connector 5 adopts a membrane body made of flexible rubber material, and two flexible connectors 5 are provided, one of which is bonded to one surface of the spiral sheet 32, the edge of the flexible connector 5 is bonded to the spiral sheet 32, and the other flexible connector 5 is bonded to the other surface of the spiral sheet 32. Thus, a control chamber 51 is formed between the flexible connector 5 and the spiral sheet 32. The flexible connector 5 is externally connected to a pump body control member 6, and the pump body control member 6 is used to inject a fluid medium into the control chamber 51 to expand and contract the control chamber 51. The pump body control member 6 is a pump body. In this solution, the pump body control member 6 injects air into the control chamber 51 and extracts the air in the control chamber 51 outward. The flexible connector 5 is used to form a push surface, which covers the spiral blade 32. The purpose of the push surface is to replace the surface of the spiral blade 32 to directly contact the sludge, thereby achieving normal squeezing of the sludge dewatering process. When the control chamber 51 expands and contracts, the push surface moves relative to the spiral blade 32.

[0054] By adopting the above-mentioned technical solution, the pushing surface on the flexible connecting member 5 can move relative to the spiral blade 32. Then, when the movable axis is located at the second displacement position, the pushing surface can be moved relative to the spiral blade 32. To be precise, the pushing surface moves back and forth relative to the spiral blade 32, that is, the flexible connecting member 5 continuously expands and contracts, so that the sludge originally adhering to the pushing surface can fall off the pushing surface due to inertia, further increasing the treatment of difficult-to-treat sludge, further ensuring the effective volume utilization rate in the sludge dewatering chamber 21, and increasing the efficiency of sludge dewatering treatment.

[0055] Example 3

[0056] The difference from Example 2 is that the fluid medium is water. The pump body control part 6 includes a water pump 61, a water tank 62 and a water injection hose 63. A connecting cavity is provided in the middle of the transmission shaft 31, and the connecting cavity is connected to the control chamber 51, wherein a plug hole is provided on the transmission shaft 31, a tube body is inserted into the plug hole, and then the tube body is simultaneously inserted into the control chamber 51, so as to realize the connection between the connecting cavity and the control chamber 51. The water injection hose 63 is connected to the connecting cavity through a rotary joint. The water pump 61 adds the water in the water tank 62 into the connecting cavity through the water injection hose 63, and then enters into the control chamber 51, so as to realize the expansion and contraction of the control chamber 51.

[0057] Example 4

[0058] The difference from Example 1 is that:

[0059] The driving member 4 includes: a first power component 41, a second power component 42 and a support component 43. The first power component 41 and the second power component 42 are both arranged on the support component 43. The first power component 41 is used to drive the transmission shaft 31 to rotate. The second power component 42 is used to drive the transmission shaft 31 to move; the axis of the transmission shaft 31 matches the movable axis.

[0060] One solution of this embodiment is that the first power member is a motor, the second power member is an electric push rod, and the second power member drives the first power member and the transmission shaft 31 to move. The support member 43 is a plate body, and the support member 43 is arranged on the screw stack sludge dewatering machine.

[0061] Another solution of this embodiment is that the first power member adopts a motor and the second power member adopts an electric push rod. The first power member drives the second power member and the transmission shaft 31 to rotate. The second power member is connected to the transmission shaft 31 and is used to drive the transmission shaft 31 to move.

[0062] Wherein, the driving member 4 also includes an elastic component 44, and the elastic component 44 is made of a spring, an elastic rubber block or other deformable materials. The second power component 42 is connected to the transmission shaft 31 through the elastic component 44, so that the second power component 42 drives the transmission shaft 31 to move through the elastic component 44. When the second power component 42 drives the elastic component 44 to move, the force of the protrusion 33 on the transmission shaft 31 against the inner wall surface of the sludge dewatering chamber 21 can be increased or decreased through the position of the elastic component 44. Then, it can be achieved that when the distance of the second power component 42 being pushed outward changes, the degree of compression of the elastic component 44 changes, and the force of the protrusion 33 pressing on the inner wall surface of the sludge dewatering chamber 21 can be changed, so that according to different cleaning degrees, the protrusion 33 can be pressed on the inner wall surface of the sludge dewatering chamber 21 by different pressures.

[0063] The first power component 41 includes a rotating motor, a first gear 411, a second gear 412 and a motor mounting frame; the motor mounting frame is arranged on a supporting component 43, and the supporting component 43 is a plate body, and the first gear 411 and the second gear 412 are meshed, so that the output end of the rotating motor is connected to the transmission rod shaft, thereby driving the motor to drive the transmission shaft 31 to rotate. A guide component 45 is arranged on the supporting component 43, and the guide component 45 is installed on the first gear 411, the first gear 411 is connected to the transmission shaft 31, and the second gear 412 is connected to the output end of the rotating motor. The transmission shaft 31 is connected to the supporting component 43 through the guide component 45. The guide component 45 is used to form a sliding connection between the first displacement position and the second displacement position for the transmission shaft 31 to move relative to the supporting component 43. The guide component 45 includes a guide rail 451, a slider 452 and a movable plate 453. The transmission shaft 31 is rotatably connected to the movable plate 453. The guide rail 451 is fixed on the first gear 411. The slider 452 is slidably connected to the guide rail 451. The movable plate 453 is fixed to the slider 452. The second power component 42 drives the transmission shaft 31 to move to the first displacement position or the second displacement position through the movable plate 453.

[0064] Example 5

[0065] A first sludge discharge outlet 7 is formed at one end of the sludge dewatering chamber 21; a sludge inlet 8 and a second sludge discharge outlet 9 are formed at the other end of the sludge dewatering chamber 21; wherein, the sludge inlet 8 and the first sludge discharge outlet 7 are distributed along the feeding direction; when the movable axis is located at the first displacement position, the first sludge discharge outlet 7 and the sludge inlet 8 are opened, and the second sludge discharge outlet 9 is closed; when the movable axis is located at the second displacement position, the first sludge discharge outlet 7 and the second sludge discharge outlet 9 are opened, and the sludge inlet 8 is closed.

[0066] Wherein, control valves are arranged on both the sludge inlet 8 and the second sludge outlet 9, so as to realize the opening and closing control of the two.

[0067] In some embodiments, the flexible connector 5 is connected to both ends of the spiral piece 32 so that the spiral piece 32 contacts the sludge through the flexible connector 5; when the movable axis is located at a first displacement position, the flexible connector 5 fits with the spiral piece 32 so that the control chamber 51 contracts; when the movable axis is located at a second displacement position, the flexible connector 5 is separated from the spiral piece 32, and at this time, the control chamber 51 contracts and expands intermittently.

[0068] In other embodiments, the protrusion 33 is arranged on the flexible connector 5, and when the control chamber 51 expands and contracts, the flexible connector 5 moves relative to the spiral sheet 32. This will drive the protrusion 33 to move relative to the spiral sheet 32, so that while the protrusion 33 can rotate with the spiral sheet 32, it can also move relative to the spiral sheet 32 ​​along other movement trajectories, so that the effect of the protrusion 33 on cleaning the adhering sludge on the inner wall of the sludge dewatering chamber 21 can be increased. In addition, the protrusion 33 can also move toward the inner wall of the sludge dewatering chamber 21, so that the force of the protrusion 33 against the inner wall of the sludge dewatering chamber 21 is increased, and the adhering sludge is better cleaned. In this embodiment, the driving member 4 is only used to drive the transmission shaft 31 to rotate around the movable axis in the above embodiment, without moving the movable axis to the first displacement position or the second displacement position, thereby greatly improving the stability of the operation process.

[0069] In other embodiments, multiple flexible connectors 5 are provided, and each flexible connector 5 is only connected to a portion of the spiral sheet 32, so that multiple control chambers 51 are formed. This arrangement is more convenient to implement and can also avoid the difficulty of the flexible connector 5 fitting along the spiral track of the spiral sheet 32.

[0070] The implementation principle of at least one embodiment of the present application is:

[0071] The sludge to be dehydrated is added into the sludge dehydration chamber 21 from the sludge inlet 8, and then the transmission shaft 31 and the spiral blade 32 rotate around the movable axis to transport the sludge to be dehydrated, so that the sludge to be dehydrated is squeezed during the transportation of the spiral blade 32, thereby achieving sludge dehydration, and finally the sludge is transported to the second sludge discharge port 9, and the dehydrated sludge is discharged outward.

[0072] After the sludge adheres to the inner wall surface of the sludge dewatering chamber 21, the spiral blade 32 does not contact the inner wall surface of the sludge dewatering chamber 21, so the sludge dewatering efficiency becomes low. For this reason, the movable axis is moved between the first displacement position and the second displacement position. When the spiral blade 32 rotates, the protrusion 33 on the spiral blade 32 contacts the inner wall surface of the sludge dewatering chamber 21, so that the sludge adhered to the inner wall surface of the sludge treatment chamber can be cleaned.

[0073] After cleaning, the spiral blade 32 can be rotated in the reverse direction to transport the cleaned sludge toward the sludge inlet 8 , and then the sludge is discharged outward from the second sludge discharge port 9 .

[0074] In some embodiments, the flow medium is cryogenic water.

[0075] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. A sludge deep dehydration and separation device, comprising a spiral body formed by staggered stacking of a plurality of fixed rings (1) and movable rings (2) and a spiral conveying member (3) penetrating the spiral body; the spiral body is used to form a sludge dehydration chamber (21), and the spiral conveying member (3) is arranged in the sludge dehydration chamber (21); Features: The rotating conveying member comprises a transmission shaft (31), a spiral sheet (32), and a protruding portion (33) arranged on the spiral sheet (32); the protruding portion (33) is used to form a scraping line having a length greater than the thickness of the spiral sheet (32); The sludge deep dehydration separation device also includes: A driving member (4) for driving the transmission shaft (31) to rotate around a movable axis and for moving the movable axis to a first displacement position and a second displacement position; Wherein, the extending direction of the movable axis matches the extending direction of the sludge dewatering chamber (21); the extending direction of the scraping line matches the extending direction of the movable axis; When the movable axis moves to the first displacement position, the scraping wire and the spiral blade (32) are separated from the inner wall surface of the sludge dewatering chamber (21); when the movable axis moves to the second displacement position, the scraping wire abuts against the inner wall surface of the sludge dewatering chamber (21).

2. A sludge deep dehydration and separation device according to claim 1, characterized in that: The movable axis located at the first displacement position and the movable axis located at the second displacement position are both arranged at the center of the sludge dewatering chamber (21) and are parallel to the center line of the sludge dewatering chamber (21).

3. A sludge deep dehydration and separation device according to claim 2, characterized in that: The sludge dewatering chamber (21) extends along a feeding dimension, and the feeding dimension is arranged obliquely; When the movable axis is located at the first displacement position, the driving member (4) causes the sludge to be transported in the sludge dewatering chamber (21) along the feeding dimension via the transmission shaft (31) and the spiral blade (32); When the movable axis is located at the second displacement position, the driving member (4) causes the sludge to be transported away from the feeding dimension in the sludge dewatering chamber (21) via the transmission shaft (31) and the spiral blade (32); Wherein, when the sludge is transported along the feeding dimension, the height position of the sludge gradually increases; When the sludge is transported away from the feeding dimension, the height position of the sludge gradually decreases.

4. A sludge deep dehydration and separation device according to claim 2, characterized in that: The spiral plate is provided with a flexible connector (5), the flexible connector (5) is connected to the spiral plate (32), and a control chamber (51) is formed between the flexible connector (5) and the spiral plate (32); The flexible connecting member (5) is externally connected to a pump body control member (6), and the pump body control member (6) is used to inject a fluid medium into the control chamber (51) to expand and contract the control chamber (51); The flexible connecting member (5) is used to form a pushing surface, and the pushing surface covers the spiral sheet (32); When the control chamber (51) expands and contracts, the push surface moves relative to the spiral blade (32).

5. The sludge deep dehydration and separation device according to claim 2, characterized in that: The driving member (4) comprises: a first power component (41), a second power component (42) and a supporting component (43); The first power component (41) and the second power component (42) are both arranged on the supporting component (43); The first power component (41) is used to drive the transmission shaft (31) to rotate; the second power component (42) is used to drive the transmission shaft (31) to move; The axis of the transmission shaft (31) matches the movable axis.

6. A sludge deep dehydration and separation device according to claim 5, characterized in that: The driving member (4) further comprises an elastic component (44), and the second power component (42) is connected to the transmission shaft (31) via the elastic component (44), so that the second power component (42) drives the transmission shaft (31) to move via the elastic component (44); When the second power component (42) drives the elastic component (44) to move, the force with which the protrusion (33) on the transmission shaft (31) abuts against the inner wall surface of the sludge dewatering chamber (21) can be increased or decreased through the moved position of the elastic component (44).

7. A sludge deep dehydration and separation device according to claim 6, characterized in that: A guide component (45) is provided on the support component (43), and the transmission shaft (31) is connected to the support component (43) via the guide component (45); The guide component (45) is used to form a sliding connection between the first displacement position and the second displacement position for allowing the transmission shaft (31) to move relative to the support component (43).

8. The sludge deep dehydration and separation device according to claim 3, characterized in that: One end of the sludge dewatering chamber (21) forms a first sludge discharge port (7); the other end of the sludge dewatering chamber (21) forms a sludge inlet (8) and a second sludge discharge port (9); Wherein, the sludge inlet (8) and the first sludge discharge outlet (7) are distributed along the feeding direction; When the movable axis is located at the first displacement position, the first sludge discharge outlet (7) and the sludge inlet (8) are opened, and the second sludge discharge outlet (9) is closed; When the movable axis is located at the second displacement position, the first sludge discharge outlet (7) and the second sludge discharge outlet (9) are opened, and the sludge inlet (8) is closed.

9. A sludge deep dehydration and separation device according to claim 8, characterized in that: The flexible connecting piece (5) is connected to both ends of the spiral piece (32) so that the spiral piece (32) is in contact with the sludge through the flexible connecting piece (5); When the movable axis is located at the first displacement position, the flexible connecting member (5) is in contact with the spiral sheet (32) to shrink the control chamber (51); When the movable axis is located at the second displacement position, the flexible connection member (5) is separated from the spiral sheet (32), and at this time, the control chamber (51) contracts and expands intermittently.

10. The sludge deep dehydration and separation device according to claim 1, characterized in that: The flow medium is water.

Images