CN-119898938-B - Sludge dewatering device and method for sludge treatment

CN119898938BCN 119898938 BCN119898938 BCN 119898938BCN-119898938-B

Abstract

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

Inventors

LEI QINGYI
Ba Gaofeng
XU YUNFENG
DU WEIZHI
LUO YIMIN
Su Maozhi

Assignees

东莞市圣茵生物有机肥有限公司

Dates

Publication Date: 20260508
Application Date: 20250317

Claims (5)

1. A sludge dewatering method for sludge treatment, characterized in that the dewatering method is performed by adopting a sludge dewatering device for sludge treatment, the sludge dewatering device comprising a treatment tank and a dewatering cylinder; the dewatering cylinder comprises a hard section positioned above and a flexible section positioned below, a rotary driving assembly is arranged at the bottom of the treatment box and used for rotating the bottom end of the dewatering cylinder, a lifting disc assembly is arranged at the top of the treatment box, a disc body of the lifting disc assembly corresponds to the hard section of the dewatering cylinder, the dewatering cylinder comprises an upper cylinder part, a water filtering cylinder bag and a lower cylinder part, the top end of the upper cylinder part is fixedly arranged with a top plate of the treatment box, a first round hole corresponding to the top opening of the upper cylinder part is formed in the top plate of the treatment box, the top end of the water filtering cylinder bag is fixedly connected with the bottom of the upper cylinder part through a first hoop part, the water filtering cylinder bag is made of porous cloth material, the top of the lower cylinder part is fixedly connected with the bottom end of the water filtering cylinder bag through a second hoop part, the upper cylinder part is made of a hard section, the water filtering cylinder bag is made of a flexible section, overflow holes are formed in the side surfaces of the flexible section and the hard section, the top end of the upper cylinder part is fixedly connected with a first flange part, the bottom end of the first flange part is fixedly connected with the top plate of the treatment cylinder, the first flange part is fixedly connected with the top end of the upper cylinder part, the top end of the upper cylinder part is fixedly connected with the top plate of the upper cylinder part, the upper cylinder part is fixedly connected with the upper end of the upper cylinder bag is provided with the upper end of the water filtering cylinder bag, the upper cylinder bag is provided with the water filtering cylinder bag, the upper water filtering cylinder bag is provided with the water-filtering cylinder bag, the water-tank is provided with the water-storing water through the water tank, the water through the water tank and the water tank, the water tank is filled in the water tank and the water through water, the water tank water through water, the water through water. The lifting disk assembly comprises a frame body and a first motor, wherein the frame body is fixedly arranged on a top plate of the treatment box, a transverse part of the frame body is positioned right above a dewatering cylinder body, the first motor is fixedly arranged on the top of the frame body, a threaded shaft rod is fixedly arranged at the bottom output end of the first motor through a coupler, the bottom end of the threaded shaft rod extends to the inner side of the flexible section, a stirring head is fixedly arranged at the bottom end of the threaded shaft rod, a side branch is fixedly arranged on the side surface of the stirring head, the disk body is in threaded fit with the threaded shaft rod, a telescopic piece is fixedly connected to the frame body, and the bottom end of the telescopic piece is fixedly connected with the top end of the disk body; The sludge dewatering method comprises the following steps: S1, keeping the top end of a dehydration barrel in an open state, and driving the bottom end of the dehydration barrel to rotate at least 360 degrees through a rotary driving assembly to enable the flexible section to form a rotary joint; S2, feeding sludge into the dehydration cylinder from the top end opening of the dehydration cylinder; S3, starting a lifting disc assembly, controlling a disc body to enter a hard section of the dehydration cylinder by the lifting disc assembly, and pre-compacting sludge by using the disc body; S4, driving the bottom end of the dehydration barrel to continuously rotate through the rotary driving assembly, enabling the rotary joint on the flexible section to move upwards, and extruding sludge through the dehydration barrel to achieve dehydration of the sludge.
2. The method for dehydrating sludge according to claim 1, wherein the bottom end of the lower cylinder is fixedly provided with a second flange, and the end of the second flange is provided with a guide hole.
3. The method for dehydrating sludge according to claim 1, wherein the rotary driving assembly comprises a rotating body, a second round hole is formed in a bottom plate of the treatment box, the rotating body is rotatably arranged on the inner side of the second round hole, a plurality of first threaded columns distributed in annular arrays are fixedly connected to the top end of the rotating body, the first threaded columns correspond to the guide holes, springs are sleeved on the first threaded columns and located above the second flange, and compression nuts are connected to the first threaded columns and located above the springs in a threaded manner.
4. The method for dewatering sludge according to claim 1, wherein the top output end of the second motor is fixedly connected with a first gear, a transmission gear ring is fixedly arranged on the outer side of the rotator, the first gear is meshed with the transmission gear ring for transmission, the shell member is fixedly connected with the bottom plate of the treatment box, and the first gear and the transmission gear ring are both arranged on the inner side of the shell member.
5. The method for dehydrating sludge according to claim 1, wherein the top of the treatment tank is provided with a storage tank, and the top opening of the dehydrating cylinder is communicated with the storage tank.

Description

Sludge dewatering device and method for sludge treatment Technical Field The invention relates to the technical field of sludge dewatering, in particular to a sludge dewatering device and method for sludge treatment. Background The sludge is a solid-liquid mixture with extremely high water content, comprises extremely complex non-uniform mass composed of organic residues, bacterial cells, inorganic particles, colloid and the like, and can generate a certain amount of sludge in a sewage treatment system in factories and mining enterprises, and the amount of the sludge is small, and the cost of inputting a few tons or more than ten tons of sludge into large-scale sludge treatment equipment is high, and the equipment loss (the key parts are corroded) is also high when the sludge treatment equipment is parked frequently. In the existing design and development of sludge treatment equipment, the whole manufacturing cost and the use and maintenance cost are high in a large-batch sludge treatment process, small and medium enterprises cannot bear the cost of the sludge treatment equipment, sludge generated by sewage treatment can be intensively treated only in a transferring mode, the sludge with high water content often accompanies some malodor smell, and pollution of air along the way is caused in the transportation process. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a sludge dewatering device and a method for sludge treatment, which solve the problems that the cost of the sludge treatment equipment which is designed and developed at present and the use and maintenance of the equipment are higher, and the damage cost (the corrosion of key parts) of the equipment is higher. In order to achieve the above purpose, the invention is realized by the following technical scheme: A sludge dewatering device for sludge treatment, comprising: A treatment box; the dewatering cylinder comprises a hard section positioned above and a flexible section positioned below, and overflow holes are formed in the side surfaces of the flexible section and/or the hard section of the dewatering cylinder; The rotary driving assembly is arranged at the bottom of the treatment box and is used for rotating the bottom end of the dehydration barrel; the lifting disc assembly is arranged at the top of the treatment box, and the disc body of the lifting disc assembly corresponds to the hard section of the dehydration cylinder body. Preferably, the dewatering cylinder includes: the top end of the upper cylinder is fixedly arranged with the top plate of the treatment box, and a first round hole corresponding to the top end opening of the upper cylinder is formed in the top plate of the treatment box; The top end of the water filtering barrel bag is fixedly connected with the bottom of the upper barrel part through a first hoop part, and the water filtering barrel bag is made of porous cloth; the top of the lower barrel part is fixedly connected with the bottom end of the water filtering barrel bag through a second hoop part; wherein, the upper barrel part is a hard section, and the water filtering barrel bag is a flexible section. Preferably, the upper cylinder part comprises a cylinder body, wherein the top end of the cylinder body is fixedly connected with a first flange part, the bottom end of the first flange part is fixedly connected with a plurality of second threaded columns distributed in an annular array and positioned on the outer side of the cylinder body, the outer side of the cylinder body is fixedly connected with an anti-slip body near the bottom end, and the outer side of the anti-slip body is provided with a plurality of guide openings distributed in an annular array; The water filtering barrel bag sequentially comprises an upper connecting part, a water permeable section and a lower connecting part from top to bottom, wherein a plurality of strip-shaped limiting pieces distributed in annular arrays are fixedly connected to the outer side of the upper connecting part, and the bottom ends of the strip-shaped limiting pieces extend to the outer side of the water permeable section. Preferably, the bottom end of the lower barrel part is fixedly provided with a second flange, and the end part of the second flange is provided with a guide hole; the rotary drive assembly includes: The bottom plate of the treatment box is provided with a second round hole, the rotary body is rotatably arranged on the inner side of the second round hole, the top end of the rotary body is fixedly connected with a plurality of first thread columns distributed in an annular array, the first thread columns correspond to the guide holes, springs are sleeved on the first thread columns and above the second flange, and compression nuts are connected on the first thread columns and above the springs in a threaded manner; the top output end of the second motor is fixedly connected with a first gear, the outer side of the rota