Sludge dewatering device and method for sludge treatment

Abstract

The invention provides a sludge dewatering device and method for sludge treatment, and relates to the technical field of sludge dewatering, the sludge dewatering device comprises a treatment box, a dewatering cylinder, a rotary driving assembly and a lifting disc assembly; according to the sludge dewatering device, the dewatering barrel with the hard section on the upper portion and the flexible section on the lower portion is designed, the lifting disc assembly is arranged at the top end of the dewatering barrel, and the rotary driving assembly is arranged at the bottom end of the dewatering barrel, so that the sludge dewatering device is simple in structure, and sludge dewatering treatment can be achieved by integrating the sludge dewatering device in the treatment box; the rotary joint on the flexible section is driven by the rotary driving assembly to move upwards, so that a labor-saving structure is formed, and the driving can be completed by utilizing a low-power motor; and the dewatering cylinder body is used as a core component, and the flexible section of the dewatering cylinder body can be made of porous cloth, so that the manufacturing cost is lower, and the dewatering cylinder body can be replaced after being damaged.

Description

Technical Field

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

[0002] Sludge is a solid-liquid mixture with a very high water content, an extremely complex inhomogeneous body composed of organic debris, bacterial cells, inorganic particles, colloids, etc.; a certain amount of sludge will be produced in the sewage treatment system of factories and mines. Since the amount of sludge is not large, only a few tons or more than ten tons per month, the cost of investing in large-scale sludge treatment equipment is relatively high, and the frequent parking of these sludge treatment equipment will also cause high equipment wear and tear (corrosion of key parts).

[0003] The sludge treatment equipment currently designed and developed is mostly invested in large-scale sludge treatment processes, and its overall construction cost and use and maintenance cost are relatively high. Small and medium-sized enterprises cannot afford the cost of these sludge treatment equipment. The sludge generated by sewage treatment can only be centrally treated by transportation. Sludge with high water content is often accompanied by some foul odors, and the transportation process will also cause air pollution along the way. For this reason, the present invention provides a sludge dehydration device and method for sludge treatment to meet market demand. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a sludge dewatering device and method for sludge treatment, which solves the problems of high cost of designing and developing sludge treatment equipment, using and maintaining these equipment, and high equipment loss cost (corrosion of key parts).

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A sludge dewatering device for sludge treatment, comprising:

[0007] Processing box;

[0008] A dehydration cylinder, wherein the dehydration cylinder comprises a hard section located at the top and a flexible section located at the bottom, and overflow holes are arranged on the sides of the flexible section and / or the hard section of the dehydration cylinder;

[0009] A rotary drive assembly, the rotary drive assembly being installed at the bottom of the processing box and being used for rotating the bottom end of the dehydration cylinder;

[0010] A lifting plate assembly is installed on the top of the processing box, and the plate body of the lifting plate assembly corresponds to the hard section of the dehydration cylinder.

[0011] Preferably, the dehydration cylinder comprises:

[0012] An upper cylinder, the top end of which is fixedly mounted on the top plate of the processing box, and a first circular hole corresponding to the top end of the upper cylinder is provided on the top plate of the processing box;

[0013] A water filter cartridge bag, the top of which is fixedly connected to the bottom of the upper cartridge member via a first hoop member, and the water filter cartridge bag is made of porous fabric;

[0014] A lower cylinder member, the top of which is fixedly connected to the bottom end of the water filter cartridge bag via a second hoop member;

[0015] Among them, the upper cylinder part is a hard section, and the water filter cylinder bag is a flexible section.

[0016] Preferably, the upper cylinder member comprises: a cylinder-shaped body, the top of the cylinder-shaped body is fixedly connected to a first flange portion, the bottom end of the first flange portion and located outside the cylinder-shaped body are fixedly connected to a plurality of second threaded columns distributed in an annular array, the outside of the cylinder-shaped body and near the bottom end is fixedly connected to an anti-skid body, and the outside of the anti-skid body is provided with a plurality of guide openings distributed in an annular array;

[0017] The water filter cartridge bag includes, from top to bottom, an upper connecting portion, a water permeable section, and a lower connecting portion. The outer side of the upper connecting portion is fixedly connected to a plurality of strip limiting members distributed in a circular array, and the bottom end of the strip limiting member extends to the outer side of the water permeable section.

[0018] Preferably, a second flange is fixedly provided at the bottom end of the lower cylinder, and a guide hole is provided at the end of the second flange;

[0019] The rotary drive assembly comprises:

[0020] A rotating body, a second circular hole is opened on the bottom plate of the processing box, the rotating body is rotatably installed on the inner side of the second circular hole, a plurality of first threaded columns distributed in a circular array are fixedly connected to the top of the rotating body, the first threaded columns correspond to the guide holes, a spring is sleeved on the first threaded column and located above the second flange, and a compression nut is threadedly connected on the first threaded column and located above the spring;

[0021] A second motor, wherein a first gear is fixedly connected to a top output end of the second motor, a transmission gear ring is fixedly installed on the outer side of the rotating body, and the first gear is meshed with the transmission gear ring for transmission;

[0022] The shell member is fixedly connected to the bottom plate of the processing box, and the first gear and the transmission gear ring are both arranged on the inner side of the shell member.

[0023] Preferably, the lifting plate assembly comprises:

[0024] A frame, wherein the frame is fixedly mounted on the top plate of the processing box, and the horizontal portion of the frame is located directly above the dehydration cylinder;

[0025] A first motor, wherein the first motor is fixedly mounted on the top of the frame, and a threaded shaft is fixedly mounted on the bottom output end of the first motor through a coupling, the bottom end of the threaded shaft extends to the inner side of the flexible section, and a compacting head is fixedly mounted on the bottom end of the threaded shaft, and a side branch is fixedly arranged on the side of the compacting head;

[0026] The disc body is threadably matched with the threaded shaft;

[0027] A telescopic member is fixedly connected to the frame, and the bottom end of the telescopic member is fixedly connected to the top end of the disc body.

[0028] Preferably, a storage tank is provided at the top of the processing box, and the top port of the dehydration cylinder is connected to the storage tank.

[0029] Another object of the present invention is to provide a sludge dewatering method for sludge treatment, using the above-mentioned sludge dewatering device for sludge treatment, comprising the following steps:

[0030] S1, keep the top end of the dehydration cylinder in an open state, and drive the bottom end of the dehydration cylinder to rotate at least 360° through the rotary drive assembly, so that the flexible section forms a rotating joint;

[0031] S2, feeding sludge into the dehydration cylinder from the top port of the dehydration cylinder;

[0032] S3, start the lifting plate assembly, the lifting plate assembly controls the plate body to enter the hard section of the dewatering cylinder, and uses the plate body to pre-compact the sludge;

[0033] S4. The bottom end of the dewatering cylinder is driven to continue rotating by the rotary drive assembly, so that the rotary joint on the flexible section moves upward, and the dewatering cylinder squeezes the sludge to achieve dehydration of the sludge.

[0034] The present invention provides a sludge dewatering device and method for sludge treatment, which has the following beneficial effects:

[0035] 1. The present invention designs a dewatering cylinder with a hard section on the top and a flexible section on the bottom, and arranges a lifting plate assembly at the top of the dewatering cylinder, and arranges a rotary drive assembly at the bottom of the dewatering cylinder. The structure is simple and can be integrated into a processing box to realize dewatering of sludge. The rotary drive assembly drives the rotary section on the flexible section to move upward, which is a labor-saving structure and can be driven by a low-power motor. The dewatering cylinder is used as a core component, and the flexible section of the dewatering cylinder can be made of porous cloth material, which has a low manufacturing cost and can be replaced after being damaged. The sludge dewatering device for sludge treatment of the present invention can be used to dewater the sludge generated in the enterprise. The water content of the sludge after treatment is reduced, and the whole is in block shape, which is convenient for transportation by a flatbed truck.

[0036] 2. The present invention, through the specific design of the structure of the dehydration cylinder, designs a lower cylinder part at the bottom of the dehydration cylinder, a second flange is fixedly provided at the bottom end of the lower cylinder part, a guide hole is opened at the end of the second flange, and the rotary drive assembly drives the lower cylinder part to rotate by means of the first threaded column. During this process, the bottom end of the dehydration cylinder can move up and down, and a spring and a clamping nut are designed to limit the movement; the bottom end of the dehydration cylinder can move up and down, which can compensate for the axial shortening during the rotation of the water filter bag and ensure the stability of the dehydration cylinder structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A first perspective stereoscopic view of a sludge dewatering device for sludge treatment proposed by the present invention;

[0038] Figure 2 A second perspective elevation view of a sludge dewatering device for sludge treatment proposed by the present invention;

[0039] Figure 3 A front view of a sludge dewatering device for sludge treatment proposed by the present invention;

[0040] Figure 4 A side view of a sludge dewatering device for sludge treatment proposed by the present invention;

[0041] Figure 5 A top view of a sludge dewatering device for sludge treatment proposed by the present invention;

[0042] Figure 6 for Figure 5 Section view of the section line at AA;

[0043] Figure 7 A schematic diagram of the internal structure of a sludge dewatering device for sludge treatment proposed by the present invention;

[0044] Figure 8 This is a schematic diagram of the internal structure of a sludge dewatering device for sludge treatment proposed by the present invention;

[0045] Fig. 9 A three-dimensional diagram of a lifting plate assembly of a sludge dewatering device for sludge treatment proposed by the present invention;

[0046] Fig.10 A three-dimensional diagram of a sludge treatment component of a sludge dewatering device for sludge treatment proposed by the present invention;

[0047] Fig.11 A three-dimensional diagram of a sludge treatment component of a sludge dewatering device for sludge treatment proposed by the present invention;

[0048] Fig.12 It is a three-dimensional schematic diagram of a rotary drive assembly of a sludge dewatering device for sludge treatment proposed by the present invention.

[0049] Among them, 1, outlet box; 1a, guide inclined frame; 2, treatment box; 3, storage tank; 3a, L-shaped baffle; 4, water collection shell; 4a, first water pipe; 5, sludge conveying assembly; 501, pump box; 502, pipe storage rack; 502a, cross bar; 502b, bottom frame; 503, discharge pipe; 6, lifting plate assembly; 601, frame; 602, first motor; 603, coupling; 604, threaded shaft; 605, plate; 606, compacting head; 606a, side branch; 607, telescopic member; 7, rotation drive assembly; 701, second motor; 702, first gear; 703, Rotating body; 704, transmission gear ring; 705, first threaded column; 706, spring; 707, clamping nut; 8, dehydration cylinder; 801, upper cylinder; 801a, first flange; 801b, second threaded column; 801c, anti-skid body; 801d, guide port; 801e, cylindrical body; 802, water filter cartridge bag; 802a, upper connecting part; 802b, strip limiting part; 802c, water permeable section; 802d, lower connecting part; 803, lower cylinder; 803a, second flange; 803b, guide hole; 9, water collecting box; 9a, second water pipe; a, hard section; b, flexible section. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] Embodiment 1:

[0052] like Figure 1-Figure 12As shown, an embodiment of the present invention provides a sludge dewatering device for sludge treatment, which includes: a treatment box 2, a dewatering cylinder 8, a rotary drive assembly 7 and a lifting plate assembly 6, wherein the treatment box 2 is a cubic frame structure, and load-bearing / supporting plates are arranged on the top and bottom of the cubic frame structure, and protective side plates are arranged on the four sides of the cubic frame structure. The dewatering cylinder 8 is arranged inside the treatment box 2, and the dewatering cylinder 8 includes a hard section a located at the top and a flexible section b located at the bottom. Overflow holes are arranged on the sides of the flexible section b and / or the hard section a of the dewatering cylinder 8. When the sludge is pressurized inside the dewatering cylinder 8, the moisture in the dewatering cylinder 8 is squeezed outward through the overflow hole, thereby realizing the dewatering treatment of the sludge. The rotary drive assembly 7 is installed at the bottom of the treatment box 2. The rotary drive assembly 7 Used to rotate the bottom end of the dewatering cylinder 8. When the rotating drive assembly 7 drives the bottom end of the dewatering cylinder 8 to rotate 360°, a rotating joint can be formed at the flexible section b of the dewatering cylinder 8, which can block the sludge from falling down out of the dewatering cylinder 8. The lifting disk assembly 6 is installed on the top of the processing box 2, and the disk body 605 of the lifting disk assembly 6 corresponds to the hard section a of the dewatering cylinder 8. The lifting disk assembly 6 drives the disk body 605 to move up and down, so that the disk body 605 can block the top of the dewatering cylinder 8 or keep the top of the dewatering cylinder 8 in an open state. When the sludge is fed in, the top of the dewatering cylinder 8 is opened. After the sludge is injected into the dewatering cylinder 8, the disk body 605 blocks the top of the dewatering cylinder 8, and the lifting disk assembly 6 drives the disk body 605 to move downward, so that the disk body 605 of the lifting disk assembly 6 pre-presses the sludge.

[0053] When the device is used, the top of the dehydration cylinder 8 is kept in an open state, and the bottom of the dehydration cylinder 8 is driven to rotate at least 360 degrees by the rotary drive assembly 7, so that the flexible section b forms a rotating joint, and then sludge is fed into the dehydration cylinder 8 from the top port of the dehydration cylinder 8. The dead weight of the sludge causes the rotating joint of the flexible section b to move down to the lowest position. When the dehydration cylinder 8 is filled with sludge, the lifting plate assembly 6 is started, and the lifting plate assembly 6 controls the plate 605 to enter the hard surface of the dehydration cylinder 8. In section a, the disc 605 blocks the top port of the dewatering cylinder 8, and the disc 605 is continuously controlled to move downward, and the disc 605 is used to pre-tighten the sludge. Finally, the bottom end of the dewatering cylinder 8 is driven to continue to rotate through the rotary drive assembly 7, so that the rotary joint on the flexible section b moves upward, and the dewatering cylinder 8 squeezes the sludge to achieve dehydration of the sludge. After the sludge is dehydrated, the rotary drive assembly 7 drives the bottom end of the dewatering cylinder 8 to return to its original position, and the sludge falls from the bottom end of the dewatering cylinder 8 under the action of its own weight.

[0054] The present invention designs a dewatering cylinder 8 with a hard section a on the top and a flexible section b on the bottom, and arranges a lifting plate assembly at the top of the dewatering cylinder 8, and arranges a rotating drive assembly at the bottom of the dewatering cylinder 8. The structure is simple and can be integrated into a processing box to realize dewatering of sludge. The rotating section on the flexible section b is driven upward by the rotating drive assembly, which is a labor-saving structure and can be driven by a low-power motor. The dewatering cylinder 8 is used as the core component, and the flexible section of the dewatering cylinder 8 can be made of porous cloth material, which has a low manufacturing cost and can be replaced after being damaged. The sludge dewatering device for sludge treatment of the present invention can be used to dewater the sludge generated in the enterprise. The water content of the sludge after treatment is reduced, and the whole is in block shape, which is convenient for transportation by a cart.

[0055] In one embodiment, the dehydration cylinder 8 includes: an upper cylinder 801, a water filter cartridge bag 802 and a lower cylinder 803; the top of the upper cylinder 801 is fixedly installed on the top plate of the treatment box 2, and a first circular hole corresponding to the top port of the upper cylinder 801 is opened on the top plate of the treatment box 2, and the sludge can be injected into the dehydration cylinder 8 from the top of the treatment box 2 through the first circular hole, the inner wall of the upper cylinder 801 is smooth, the shape of the disk 605 matches the inner hole cross-section of the upper cylinder 801, the disk 605 can block the upper cylinder 801, and the disk 605 can move downward like a piston to squeeze the sludge under the disk 605, the top of the water filter cartridge bag 802 is fixedly connected to the bottom of the upper cylinder 801 through the first hoop, and the water filter cartridge bag 802 is fixedly installed on the top plate of the treatment box 2. The cartridge bag 802 is made of porous fabric. The filter cartridge bag 802 should be made of high-strength fabric with a multi-layer structure to avoid damage when squeezing sludge. The top of the lower cartridge 803 is fixedly connected to the bottom of the filter cartridge bag 802 through a second hoop. In the above structure, both ends of the filter cartridge bag 802 are fixed by hoops, making it very easy to replace the filter cartridge bag 802. When using it, replace it with a new filter cartridge bag 802. When the device is not used for a long time, the filter cartridge bag 802 can be removed. Due to its simple structure, after removing the filter cartridge bag 802, the remaining parts can be simply rinsed. In the above records, the upper cartridge 801 is the hard section a, and the filter cartridge bag 802 is the flexible section b.

[0056] In one embodiment, the upper cylinder 801 comprises: a cylinder 801e, the top of which is fixedly connected to a first flange 801a, and the bottom of the first flange 801a and located outside the cylinder 801e are fixedly connected to a plurality of second threaded columns 801b distributed in an annular array. When the upper cylinder 801 is installed, the cylinder 801 is installed downward from the top plate of the processing box 2, and a large circular hole is provided on the top plate of the processing box 2, and a second threaded column 801b is provided on the outer periphery of the large circular hole. The small circular hole corresponding to the threaded column 801b is used to insert the cylindrical body 801 into the large circular hole, the second threaded column 801b is inserted into the small circular hole, and a nut is installed on the second threaded column 801b to fix the upper cylindrical member 801. An anti-slip body 801c is fixedly connected to the outside of the cylindrical body 801e and close to the bottom end. The anti-slip body 801c cooperates with the first hoop to ensure the stable connection of the water filter cartridge bag 802. A plurality of guide openings 801d distributed in a circular array are provided on the outside of the anti-slip body 801c.

[0057] The water filter cartridge bag 802 includes, from top to bottom, an upper connecting portion 802a, a water permeable section 802c, and a lower connecting portion 802d. The outer side of the upper connecting portion 802a is fixedly connected with a plurality of strip limiting members 802b distributed in a circular array. The bottom end of the strip limiting member 802b extends to the outer side of the water permeable section 802c. The strip limiting member 802b corresponds to the guide port 801d, and can limit the top end of the water filter cartridge bag 802 from rotating relative to the upper cylinder member 801. The strip limiting member 802b is generally made of a rubber sheet with steel wire inside, and its length direction can be deformed. When the bottom end of the water filter cartridge bag 802 rotates, the bottom of the strip limiting member 802b also deforms to a certain extent, and the strip limiting member 802b prevents a large dead angle area (triangle area) from appearing at the connection between the water filter cartridge bag 802 and the upper cylinder member 801.

[0058] In one embodiment, a second flange 803a is fixedly provided at the bottom end of the lower cylinder 803, and a guide hole 803b is opened at the end of the second flange 803a; the rotation drive assembly 7 includes: a rotating body 703, a second motor 701, a first gear 702, a transmission ring gear 704 and a shell member.

[0059] A second circular hole is provided on the bottom plate of the processing box 2, and the rotating body 703 is rotatably installed on the inner side of the second circular hole. The rotating body 703 can be installed by a bearing. The top of the rotating body 703 is fixedly connected with a plurality of first threaded columns 705 distributed in a circular array. The first threaded columns 705 correspond to the guide holes 803b. A spring 706 is sleeved on the first threaded column 705 and located above the second flange 803a. A clamping nut 707 is threadedly connected on the first threaded column 705 and located above the spring 706. The second flange 803a can move up and down relative to the rotating body 703. However, restricted by the spring 706 and the clamping nut 707, the second flange 803a also moves up and down. First, it is used to compensate for the axial shortening of the water filter bag 802 during rotation. The top output end of the second motor 701 is fixedly connected with the first gear 702, and the outer side of the rotating body 703 is fixedly installed with a transmission ring gear 704. The first gear 702 and the transmission ring gear 704 are meshed for transmission. The shell part is fixedly connected to the bottom plate of the treatment box 2, and the first gear 702 and the transmission ring gear 704 are both arranged on the inner side of the shell part, and the shell part is used to protect the first gear 702 and the transmission ring gear 704.

[0060] In this solution, the torsional force of the second motor 701 drives the rotating body 703 to rotate through the deceleration and torque increase transmission action between the first gear 702 and the transmission ring gear 704. The rotating body 703 can provide a large rotational force. The rotating body 703 relies on the first threaded column 705 to drive the lower cylinder 803 to rotate, that is, to drive the bottom of the dehydration cylinder 8 to rotate.

[0061] In one embodiment, the lifting plate assembly 6 includes: a frame 601 , a first motor 602 , a threaded shaft 604 , a plate body 605 and a telescopic member 607 .

[0062] The frame 601 is fixedly installed on the top plate of the processing box 2. The frame 601 is L-shaped. The horizontal part of the frame 601 is located directly above the dehydration cylinder 8. The first motor 602 is fixedly installed on the top of the frame 601, and the bottom output end of the first motor 602 is fixedly installed with a threaded shaft 604 through a coupling 603. The bottom end of the threaded shaft 604 extends to the inner side of the flexible section b, and a compacting head 606 is fixedly installed on the bottom end of the threaded shaft 604. The side of the compacting head 606 is fixedly provided with a side branch 606a. When the compacting head 606 rotates, the side branch 606a can push the sludge to rotate. The disk 605 is threadedly matched with the threaded shaft 604. A telescopic member 607 is fixedly connected to the frame 601. The bottom end of the telescopic member 607 is fixedly connected to the top of the disk 605.

[0063] In this solution, the first motor 602 drives the threaded shaft 604 and the compacting head 606 to rotate, and the telescopic member 607 is used to limit the rotation of the disk 605. The disk 605 and the threaded shaft 604 are threadedly matched, that is, when relative rotation occurs between them, the disk 605 can be driven to move up and down.

[0064] In some cases, the dehydrated sludge lumps may be tightly adhered to the inner side of the flexible section b. When the compacting head 606 rotates, this part of the lumpy sludge can be dispersed.

[0065] In one embodiment, a storage tank 3 is provided at the top of the processing box 2, and the top port of the dehydration cylinder 8 is connected to the storage tank 3. The user can pump fluid sludge into the storage tank 3. When the disk 605 moves upward to open the top port of the dehydration cylinder 8, the sludge inside the storage tank 3 can flow into the dehydration cylinder 8.

[0066] In one embodiment, it also includes: a sludge conveying component 5, which is fixedly installed on the side of the processing box 2, and the outlet end of the sludge conveying component 5 is fixedly connected to the storage tank 3, and the sludge conveying component 5 is used to pump the sludge into the storage tank 3.

[0067] In one embodiment, the sludge conveying assembly 5 includes: a pump box 501 fixedly installed on the side of the treatment box 2, and a pipe storage rack 502. The pump box 501 is located above the pipe storage rack 502. The pipe storage rack 502 is provided with a cross bar 502a and a bottom frame 502b. The outlet end of the pump box 501 is connected to a discharge pipe 503. The top of the discharge pipe 503 is fixedly connected to the bottom of the storage tank 3. An L-shaped baffle 3a is fixedly installed on the side of the storage tank 3 and at a position corresponding to the top port of the discharge pipe 503. The top of the discharge pipe 503 faces upward. The L-shaped baffle 3a is designed to prevent the sludge from spraying upward during pumping and not falling into the storage tank 3. The inlet end of the pump box 501 is connected to a hard pipe, and the hard pipe is in a multi-section form. The pipe storage rack 502 is used to store the hard pipe. When in use, the user connects a pipe of appropriate length according to actual needs, and one end of the pipe is inserted into the sludge. The pump box 501 works to pump the sludge into the storage tank 3.

[0068] In one embodiment, the bottom of the processing box 2 is fixedly connected to the outlet box 1, one side of the outlet box 1 is open, and the inner side of the outlet box 1 is fixedly provided with a guide inclined frame 1a, which is an inclined plate structure that guides the dehydrated sludge falling from the bottom of the dehydration cylinder 8 out of the outlet box 1.

[0069] A water collecting shell 4 and a water collecting box 9 are also designed. The water collecting shell 4 is arranged on one side of the opening of the outlet box 1. A mesh is arranged on the top of the water collecting shell 4. The side of the water collecting shell 4 is connected to a first water pipe 4a. During the sludge dehydration process, some water will overflow from the bottom end of the dehydration cylinder 8, and this part of water will be collected by the water collecting shell 4. An annular water collecting box 9 is arranged inside the treatment box 2. The side of the water collecting box 9 is connected to a second water pipe 9a. One end of the second water pipe 9a is connected to the first water pipe 4a. During the sludge dehydration process, some water will be squeezed and sprayed out from the side of the dehydration cylinder 8, and the water collecting box 9 is used to collect this part of water.

[0070] Embodiment 2:

[0071] A sludge dewatering method for sludge treatment, using the sludge dewatering device for sludge treatment in embodiment 1, specifically comprises the following steps:

[0072] S1. Keep the top end of the dehydration cylinder 8 in an open state, and drive the bottom end of the dehydration cylinder 8 to rotate at least 360° through the rotary drive assembly 7, so that the flexible section b forms a rotation joint.

[0073] S2. Sludge is fed into the dehydration cylinder 8 from the top port of the dehydration cylinder 8. At this time, the sludge contains more water.

[0074] S3. Start the lifting disc assembly 6. The lifting disc assembly 6 controls the disc body 605 to enter the hard section a of the dehydration cylinder 8 and uses the disc body 605 to pre-compact the sludge. At this time, the bottom end of the dehydration cylinder 8 is blocked by the rotating joint, and the top end of the dehydration cylinder 8 is blocked by the disc body 605.

[0075] S4. The bottom end of the dehydration cylinder 8 is driven to continue to rotate by the rotary drive assembly 7, so that the rotary joint on the flexible section b moves upward, and the dehydration cylinder 8 squeezes the sludge to achieve dehydration of the sludge.

[0076] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A sludge dewatering device for sludge treatment, characterized in that: include: Processing box (2); A dehydration cylinder (8), wherein the dehydration cylinder (8) comprises a hard section (a) located at the top and a flexible section (b) located at the bottom, and overflow holes are arranged on the sides of the flexible section (b) and / or the hard section (a) of the dehydration cylinder (8); A rotary drive assembly (7), wherein the rotary drive assembly (7) is installed at the bottom of the processing box (2), and the rotary drive assembly (7) is used to rotate the bottom end of the dehydration cylinder (8); A lifting plate assembly (6), wherein the lifting plate assembly (6) is installed on the top of the processing box (2), and the plate body (605) of the lifting plate assembly (6) corresponds to the hard section (a) of the dehydration cylinder (8).

2. A sludge dewatering device for sludge treatment according to claim 1, characterized in that: The dehydration cylinder (8) comprises: An upper cylinder member (801), the top end of the upper cylinder member (801) being fixedly mounted on a top plate of the processing box (2), and a first circular hole corresponding to a top end of the upper cylinder member (801) is provided on the top plate of the processing box (2); A water filter cartridge bag (802), wherein the top of the water filter cartridge bag (802) is fixedly connected to the bottom of the upper cartridge member (801) via a first hoop member, and the water filter cartridge bag (802) is made of porous fabric; A lower cylinder member (803), the top of which is fixedly connected to the bottom end of the water filter cartridge bag (802) via a second hoop member; The upper cylinder (801) is a hard section (a), and the water filter cylinder bag (802) is a flexible section (b).

3. A sludge dewatering device for sludge treatment according to claim 2, characterized in that: The upper cylinder (801) comprises: a cylindrical body (801e), the top end of the cylindrical body (801e) is fixedly connected to a first flange portion (801a), the bottom end of the first flange portion (801a) and located on the outside of the cylindrical body (801e) are fixedly connected to a plurality of second threaded columns (801b) distributed in a circular array, the outside of the cylindrical body (801e) and close to the bottom end is fixedly connected to an anti-skid body (801c), and the outside of the anti-skid body (801c) is provided with a plurality of guide openings (801d) distributed in a circular array.

4. A sludge dewatering device for sludge treatment according to claim 3, characterized in that: The water filter cartridge bag (802) comprises, from top to bottom, an upper connecting portion (802a), a water permeable section (802c), and a lower connecting portion (802d); the outer side of the upper connecting portion (802a) is fixedly connected to a plurality of strip limiting members (802b) distributed in a circular array; the bottom end of the strip limiting member (802b) extends to the outer side of the water permeable section (802c).

5. A sludge dewatering device for sludge treatment according to claim 4, characterized in that: A second flange (803a) is fixedly provided at the bottom end of the lower cylinder (803), and a guide hole (803b) is opened at the end of the second flange (803a).

6. A sludge dewatering device for sludge treatment according to claim 5, characterized in that: The rotary drive assembly (7) comprises: A rotating body (703), a second circular hole is opened on the bottom plate of the processing box (2), and the rotating body (703) is rotatably installed on the inner side of the second circular hole. The top of the rotating body (703) is fixedly connected with a plurality of first threaded columns (705) distributed in a circular array, and the first threaded columns (705) correspond to the guide holes (803b). A spring (706) is sleeved on the first threaded column (705) and located above the second flange (803a), and a clamping nut (707) is threadedly connected on the first threaded column (705) and located above the spring (706).

7. A sludge dewatering device for sludge treatment according to claim 6, characterized in that: A second motor (701), wherein a first gear (702) is fixedly connected to a top output end of the second motor (701), a transmission ring gear (704) is fixedly installed on the outer side of the rotating body (703), and the first gear (702) and the transmission ring gear (704) are meshed and transmitted; A shell member is fixedly connected to the bottom plate of the processing box (2), and the first gear (702) and the transmission gear ring (704) are both arranged on the inner side of the shell member.

8. The sludge dewatering device for sludge treatment according to claim 1, characterized in that: The lifting plate assembly (6) comprises: A frame (601), wherein the frame (601) is fixedly mounted on the top plate of the processing box (2), and the horizontal portion of the frame (601) is located directly above the dehydration cylinder (8); A first motor (602), the first motor (602) is fixedly mounted on the top of the frame (601), and a threaded shaft (604) is fixedly mounted on the bottom output end of the first motor (602) via a coupling (603), the bottom end of the threaded shaft (604) extends to the inner side of the flexible section (b), and a compacting head (606) is fixedly mounted on the bottom end of the threaded shaft (604), and a side branch (606a) is fixedly arranged on the side of the compacting head (606); The disc body (605) is threadably matched with the threaded shaft (604); A telescopic member (607) is fixedly connected to the frame (601), and the bottom end of the telescopic member (607) is fixedly connected to the top end of the disc (605).

9. The sludge dewatering device for sludge treatment according to claim 1, characterized in that: A storage tank (3) is provided at the top of the processing box (2), and a top port of the dehydration cylinder (8) is connected to the storage tank (3).

10. A sludge dewatering method for sludge treatment, characterized in that: The sludge dewatering device for sludge treatment according to any one of claims 1 to 9 comprises the following steps: S1, keeping the top end of the dehydration cylinder (8) in an open state, driving the bottom end of the dehydration cylinder (8) to rotate at least 360° through the rotary drive assembly (7), so that the flexible section (b) forms a rotary joint; S2, feeding sludge into the dehydration cylinder (8) from the top port of the dehydration cylinder (8); S3, starting the lifting disc assembly (6), the lifting disc assembly (6) controls the disc body (605) to enter the hard section (a) of the dewatering cylinder (8), and uses the disc body (605) to pre-compact the sludge; S4. The bottom end of the dehydration cylinder (8) is driven to continue rotating by the rotary drive assembly (7), so that the rotary joint on the flexible section (b) moves upward, and the dehydration cylinder (8) squeezes the sludge to achieve dehydration of the sludge.

Images