CN-121672903-B - Sludge solidifying device for dredging sludge pretreatment

CN121672903BCN 121672903 BCN121672903 BCN 121672903BCN-121672903-B

Abstract

The invention discloses a sludge solidification device for dredging sludge pretreatment, which relates to the technical field of sludge treatment and comprises a treatment tank body, wherein a filter pressing piece is arranged in the treatment tank body, the filter pressing piece comprises a filter plate arranged at the bottom of the treatment tank body, a spiral piece arranged at the central shaft position of the treatment tank body, and a driver for driving the spiral piece to move up and down along the axial direction of the treatment tank body, wherein the driver is connected with a deflector rod which moves synchronously with the spiral piece, a plurality of working procedures are integrated in a single treatment tank body, the extremely compact equipment is realized, the quantity of equipment, the occupied area and the foundation construction cost are remarkably reduced, the filter pressing piece is particularly suitable for a construction site or a movable treatment platform with limited space, the bottom end of the spiral piece is directly converted into a dynamic pressing piece when the spiral piece moves downwards, and continuous rotary conveying ensures that materials to be extruded are uniformly and continuously supplemented to an extrusion surface, and local pressure non-uniformity is avoided.

Inventors

DENG RENGUI
SONG WENJIE
YANG ZHUO
Peng Jieshuai
YUAN XIN
LI XIN
ZHAN XIAOHAN
Dai hongji
LIU JIANHUA

Assignees

湖南鑫大工程服务有限公司
湖南省水利水电科学研究院
湖南省湘禹南方水利科技有限公司
湖南谦丰科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260203

Claims (4)

1. A sludge solidification device for dredging sludge pretreatment comprises a treatment tank body (1) and is characterized in that a filter pressing piece (2) is arranged in the treatment tank body (1), and the filter pressing piece (2) comprises a filter plate (21) arranged at the bottom of the treatment tank body (1), a spiral piece (22) arranged at the central shaft position of the treatment tank body (1), a filter plate (2) and a filter plate (2) which are arranged on the bottom of the treatment tank body, A driver (23) for driving the screw plate (22) to move up and down along the axis direction of the treatment tank body (1), wherein the driver (23) is connected with a deflector rod (24) which moves synchronously with the screw plate (22), a material adding component (3) arranged above the screw plate (22) is used for adding treatment medicaments into the treatment tank body (1), a linkage piece (4) connected between the driver (23) and the screw plate (22) is used for synchronously driving the screw plate (22) to rotate around the axis when the driver (23) drives the screw plate (22) to move up and down, a sloped sheet (221) is connected to the bottom end section of the screw plate (22), the rotating screw plate (22) is used for conveying sludge downwards and enabling the sludge to be mixed with the treatment medicaments from the material adding component (3) preliminarily, the synchronously moving deflector rod (24) is used for stirring the mixture in conveying so as to enhance the mixing effect, the driver (23) drives the screw plate (22) to move downwards while rotating the screw plate (22) so that the bottom end of the screw plate (22) is positioned on a filter plate (21), and a filter plate (231) is driven by a dewatering motor (231) to press the mixture (231) which is positioned on the filter plate (21) Main actuating lever (232), movable plate (233) and locating part (234), actuating motor (231) are fixed on the top of handling jar body (1), the output of actuating motor (231) is connected with main actuating lever (232), movable plate (233) has been cup jointed on main actuating lever (232), flight (22) upper end is connected with flitch (222), be connected by first branch (2331) between movable plate (233) and the flitch (222), second branch (2332) and third branch (2333), locating part (234) one end is connected with flitch (222), locating part (234) set up two respectively symmetry settings on flitch (222), locating part (234) include with handling jar body (1) upper end inner wall fixed outer tube (2341) and flexible pole (2342) of activity cup joint in outer tube (2341) inside, flexible pole (2342) and flitch (222) fixed connection, piece (4) include first ratchet subassembly (41), a second ratchet wheel component (42), a third ratchet wheel component (43), a fourth ratchet wheel component (44), a linkage rod (45) and a synchronizing plate (46), wherein the synchronizing plate (46) is respectively sleeved on the first supporting rod (2331), The utility model provides a main drive mechanism is characterized by comprising a first ratchet component (41) and a second ratchet component (42) are installed on a second support rod (2332) and a main drive rod (232) through a bearing on a synchronizing plate (46), the first ratchet component (41) and the second ratchet component (42) are fixedly sleeved on the first support rod (2331) and the second support rod (2332) respectively, a main drive toothed ring (461) is connected on the synchronizing plate (46) through the bearing, the main drive toothed ring (461) is sleeved on the main drive rod (232), the main drive toothed ring (461) is meshed with gears on the first ratchet component (41) and the second ratchet component (42) respectively, a third ratchet component (43) is sleeved on the other end of the first support rod (2331) through a gear, a linkage rod (45) and the second support rod (2332) are in transmission, a fourth ratchet component (44) is sleeved on one end of the linkage rod (45), a rotary gear (223) is sleeved on a center ring of a spiral piece (22), the rotary gear (223) is meshed with the gears (232) on the third ratchet component (43) and the fourth ratchet component (44) respectively, an inner hole (2322) is formed by extending from the inner hole of the inner wall of the main drive plate (232), and the inner hole of the inner wall of the main drive plate (2322) is formed by extending.
2. Sludge solidification equipment for the pretreatment of dredging sludge according to claim 1, characterized in that the filter plate (21) consists of two half plates, which are connected by a shaft in the middle and which are rotatable about the shaft, respectively.
3. Sludge solidification device for dredging sludge pretreatment according to claim 1, characterized in that a storage tank for treating the storage of the medicament is arranged in the blanking plate (222), and the upper end of the storage tank is connected with the feeding assembly (3) through a telescopic pipe (31).
4. Sludge solidification equipment for dredging sludge pretreatment according to claim 1, characterized in that the centre of the inner ring plate (2322) is provided with a central plate, which is arranged in the inner hole by means of a spring, and one end of a deflector rod (24) is hinged with an extension rod at one end of the central plate through a chute.

Description

Sludge solidifying device for dredging sludge pretreatment Technical Field The invention relates to the technical field of sludge treatment, in particular to a sludge solidification device for dredging sludge pretreatment. Background Along with the continuous development of water environment management, channel maintenance and municipal construction in China, dredging engineering produces a large amount of sludge with high water content and complex components. The direct discharge of the sludge can cause secondary pollution to the environment and occupy a large amount of land, so that the harmless, reduction and recycling treatment of the sludge become the technical problems to be solved. Pretreatment and solidification are key links for converting dredging sludge into a recyclable geotechnical material. Currently, the pretreatment and solidification of dredging sludge usually involves a number of separate processes and equipment. The conventional process flow generally comprises the steps of firstly conveying dredged sludge to a homogenizing tank, then adding a curing agent (such as cement, lime and the like) and forcibly mixing by a stirrer, conveying the mixed slurry to special dewatering equipment (such as a plate-and-frame filter press, a belt filter press or a centrifuge) by a pump or a conveyor for solid-liquid separation, and further curing or utilizing the finally formed mud cake according to requirements. The traditional technical scheme has the following obvious defects although the traditional technical scheme is widely applied: The stirring, conveying, dewatering and other links need different equipment to be connected in series for operation, the equipment quantity is large, pipelines are complex, the occupied area of the whole treatment system is large, the construction cost is high, the equipment is especially not suitable for being deployed on a construction site with limited space or on occasions needing mobile treatment, materials are transported, loaded and unloaded for multiple times among different equipment, starting and stopping are repeated, the whole energy consumption is high, in addition, the mixing and the dewatering are used as two independent working procedures, the cooperativity is poor, segregation or secondary sedimentation can be generated in the conveying process of the mixed materials, and the subsequent dewatering effect is influenced. Disclosure of Invention The invention aims to provide a sludge solidification device for dredging sludge pretreatment, which has the advantages that a plurality of working procedures are integrated in a single treatment tank body, so that the device is extremely compact, the number of the devices, the occupied area and the infrastructure cost are obviously reduced, a spiral sheet is used as a conveying and stirring piece when rotating, and the bottom end of the spiral sheet is directly converted into a dynamic tabletting when moving downwards. In order to achieve the aim, the invention provides the technical scheme that the sludge solidification device for dredging sludge pretreatment comprises a treatment tank body, wherein a pressure filter is arranged in the treatment tank body; The filter pressing piece comprises a filter plate arranged at the bottom of the treatment tank body, a spiral sheet arranged at the central shaft position of the treatment tank body, and a driver for driving the spiral sheet to move up and down along the axial direction of the treatment tank body, wherein the driver is connected with a deflector rod which moves synchronously with the spiral sheet; The material adding component is arranged above the spiral sheet and is used for adding a treatment agent into the treatment tank body; The linkage piece is connected between the driver and the spiral sheet and is used for synchronously driving the spiral sheet to rotate around the axis of the spiral sheet when the driver drives the spiral sheet to move up and down; wherein the rotating screw blade is used for conveying the sludge downwards and enabling the sludge to be primarily mixed with the treatment agent from the material adding assembly; the stirring rod which moves synchronously is used for stirring and stirring the mixture in the conveying process so as to strengthen the mixing effect; While the spiral sheet rotates for conveying, the driver drives the spiral sheet to move downwards, so that the bottom end of the spiral sheet performs extrusion dehydration on the mixture on the filter plate. Further, the filter plate is composed of two half plates, the middle of the two half plates is connected by a shaft lever, and the two half plates can rotate around the shaft lever respectively. Further, the section of the bottom end of the spiral sheet is connected with an inclined pressing sheet. Further, the driver includes driving motor, main actuating lever, movable plate and locating part, and driving motor fixes on the treatment jar body top, and driving motor's o