In-situ sludge solidification double-turbine stirring device

Abstract

The utility model discloses an in-situ sludge solidification double-turbine stirring device, which comprises a stirring arm and a stirring head, the lower end of the stirring arm is symmetrically provided with two turbine type stirring heads, the stirring head comprises a rotary drum, a rotary driving device is arranged in the rotary drum, stirring blades are spirally distributed on the outer wall of the rotary drum, the end part of the rotary drum is provided with a sealing device, and the sealing device is arranged on the rotary drum. A hydraulic pipeline and a curing agent raw material conveying pipeline are mounted on the stirring arm, the hydraulic pipeline provides power for the rotary driving device to drive the stirring head to rotate and stir, and the curing agent raw material conveying pipeline is used for conveying and spraying a curing agent raw material into sludge. The stirring device can conduct on-site treatment on a foundation treatment area, in-situ soil can directly meet the use and construction requirements through cement and a curing agent, excavation, desilting and other operations can be omitted, the stability of a foundation is improved, the construction efficiency is improved, time is saved, zero outward transportation of engineering waste soil is achieved, and the construction cost is reduced. The construction process is simple, operation is convenient, a hard shell layer can be rapidly formed, cyclic utilization of resources can be achieved, energy conservation and environmental protection are achieved, and the method is suitable for various application scenes.

Description

Technical Field

[0001] The utility model belongs to the technical field of water conservancy and hydropower wharf construction and road traffic foundation treatment, and particularly relates to an in-situ sludge solidification double-turbine stirring device. Background Art

[0002] With the increasing emphasis on environmental protection, sludge disposal has become a major environmental issue that needs to be addressed during the construction of water conservancy and hydropower terminals and road transportation projects. Traditional sludge treatment methods generally involve cushion replacement or backfilling, which are time-consuming, costly, and cause severe environmental pollution. Utility Model Content

[0003] In view of the above problems, the utility model provides an in-situ sludge solidification twin-turbine stirring device.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] An in-situ sludge solidification dual-turbine stirring device includes a stirring arm and a stirring head. Two turbine stirring heads are symmetrically installed at the lower end of the stirring arm. The stirring head includes a rotating drum, a rotating drive device is installed in the rotating drum, stirring blades are spirally distributed on the outer wall of the rotating drum, and a sealing device is installed at the end of the rotating drum. A hydraulic pipeline and a curing agent raw material delivery pipeline are installed on the stirring arm. The hydraulic pipeline provides power to the rotating drive device to drive the stirring head to perform a rotating stirring action. The curing agent raw material delivery pipeline is used to transport and spray the curing agent raw material into the sludge.

[0006] As a preferred embodiment of the above solution, the lower end of the stirring arm is fixedly connected to a three-way fixing seat, and both sides of the three-way fixing seat are connected to the stirring head through bearings, and an oil seal is installed between the bearing and the stirring head.

[0007] As a preferred embodiment of the above solution, the stirring arm is welded to the three-way fixing seat as a whole, and the whole is Y-shaped or T-shaped.

[0008] As a preferred embodiment of the above scheme, the rotation drive device includes a hydraulic motor and a reducer. The hydraulic motor is installed in a three-way fixing seat and is connected to the hydraulic pipeline. The output end of the hydraulic motor is connected to the input end of the reducer, and the output end of the reducer is connected to the rotating drum through a flange.

[0009] As a preferred embodiment of the above scheme, one or two hydraulic motors are provided. When a single hydraulic motor is used, the hydraulic motor can be a dual-output shaft hydraulic motor, each output shaft of which is connected to a reducer. When two hydraulic motors are used, the two hydraulic motors rotate synchronously.

[0010] As a preferred embodiment of the above scheme, the sealing device includes a sealing head and a sealing ring. The end of the sealing head is in a bell-mouth shape, and the end of the rotating drum is provided with a concave surface that cooperates with it. At least one layer of sealing ring is provided between the sealing head and the rotating drum.

[0011] As a preferred embodiment of the above scheme, an excavator is also included, the upper end of the stirring arm is fixedly connected to the excavator through a pull-out pin, and the hydraulic pipeline on the stirring arm is connected to the hydraulic system of the excavator.

[0012] As a preferred embodiment of the above scheme, a proportioning workbench is also included, which includes a feed bin and a mixing bin connected from top to bottom. A stirrer is provided in both the feed bin and the mixing bin, and the stirrer is driven by a motor. A plurality of discharge ports are provided at the bottom of the mixing bin, and the discharge ports are connected to the curing agent raw material conveying pipeline through a discharge valve.

[0013] As a preferred embodiment of the above solution, the proportioning workbench further includes a control cabinet, on which a controller and a control panel are provided. The controller is connected to the motor and the control panel, and the control panel is provided with a display.

[0014] As a preferred embodiment of the above scheme, it also includes a storage bin, which is connected to the feed bin of the proportioning workbench through a pipeline.

[0015] Due to the above structure, the beneficial effects of the utility model are:

[0016] The mixing device can carry out on-site treatment of the foundation treatment area, and use cement and curing agent to make the in-situ soil directly meet the construction requirements, eliminating the need for excavation, dredging and other operations. It not only improves the stability of the foundation, improves construction efficiency, saves time, but also achieves zero external transportation of construction waste soil. In addition, the construction process is relatively simple and the operation is convenient. It can quickly form a hard shell layer, realize the recycling of resources, save energy and protect the environment, and is suitable for a variety of application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0018] Figure 1 、 Figure 2 This is a schematic diagram of the overall structure of the first embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of the drum in Example 1 of the present utility model;

[0020] Figure 4 This is a schematic diagram of the overall structure of the third embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the overall structure of Example 4 of the present utility model. DETAILED DESCRIPTION

[0022] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. 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.

[0023] Example 1:

[0024] like Figures 1 to 3 As shown, this embodiment provides an in-situ sludge solidification dual-turbine stirring device, including a stirring arm 1 and a stirring head, and two turbine stirring heads are symmetrically installed at the lower end of the stirring arm 1. Among them, the stirring head is the execution device for the in-situ solidification and repair of the entire soft soil, which realizes the function of mixing and stirring the curing agent with the sludge to form a stable base. During the solidification process, the stirring head maintains vertical movement up and down, and stays for a certain time each time it rises or sinks to a height, which is determined by the permeability of the curing agent. It rotates clockwise when moving downward and counterclockwise when moving upward. When moving downward, ensure that the rotating blades at the stirring nozzle can empty the sludge on the left and right ends of the nozzle to form a vacuum so that the curing agent can be injected smoothly.

[0025] In this embodiment, the stirring head includes a rotating drum 21, a rotating drive device is installed in the rotating drum 21, stirring blades 22 are spirally distributed on the outer wall of the rotating drum 21, a sealing device 4 is installed at the end of the rotating drum 21, and a hydraulic pipeline (not shown in the figure, including an oil inlet pipe, an oil storage tank, etc.) and a curing agent raw material delivery pipeline 3 are installed on the stirring arm 1. The hydraulic pipeline provides power to the rotating drive device to drive the stirring head to perform a rotating stirring action. The curing agent raw material delivery pipeline 3 is used to transport and spray the curing agent raw material into the sludge.

[0026] In this embodiment, the lower end of the stirring arm 1 is fixedly connected to a three-way fixing seat 11, and both sides of the three-way fixing seat 11 are connected to the stirring head through bearings 12, and an oil seal is installed between the bearings and the stirring head.

[0027] In this embodiment, the stirring arm 1 and the three-way fixing seat 11 are welded together into a whole, and the whole is Y-shaped or T-shaped.

[0028] In this embodiment, the stirring blade 22 can be made of high-performance alloy steel, which is easy to assemble and replace, has long-lasting practicality, and high economic value.

[0029] In this embodiment, the rotation drive device includes a hydraulic motor 31 and a reducer 32. The hydraulic motor 31 is installed in the three-way fixing seat 11 and is connected to the hydraulic pipeline. The output end of the hydraulic motor 31 is connected to the input end of the reducer 32, and the output end of the reducer 32 is connected to the drum 21 via a flange 33. One or two hydraulic motors 31 are provided. When a single hydraulic motor is used, the hydraulic motor can be a dual-output shaft hydraulic motor, each of which output shafts is connected to a reducer. When two hydraulic motors are used, the two hydraulic motors rotate synchronously.

[0030] In this embodiment, the sealing device 4 includes a sealing head 41 and a sealing ring 42. The end of the sealing head 41 is flared, and the end of the drum 21 is provided with a concave surface that cooperates with the sealing head 41. At least one layer of sealing ring 42 is provided between the sealing head 41 and the drum 21. The provision of the sealing device 4 can isolate external substances during the operation of the mixing head, preventing external water, oil, mud, chemical reagents, etc. from entering the drum 21 and blocking the mixing head, thereby improving the durability of the mixing head.

[0031] Example 2:

[0032] The same as the first embodiment, except that:

[0033] In this embodiment, an excavator (not shown) is also included. The upper end of the mixing arm 1 is fixedly connected to the excavator via a pull-out pin, and the hydraulic pipeline on the mixing arm 1 is connected to the hydraulic system of the excavator. The excavator directly provides pressure to the mixing head, eliminating the need for a separate power unit, saving costs. This arrangement also allows for a built-in hydraulic system, improving the safety and aesthetics of the device.

[0034] Example 3:

[0035] The embodiment is basically the same as the above embodiment, except that:

[0036] like Figure 4 As shown, in this embodiment, a proportioning workbench 5 is also included. The proportioning workbench 5 includes a feed bin 51 and a mixing bin 52 that are connected from top to bottom. A stirrer is provided in each of the feed bin 51 and the mixing bin 52. The stirrer is driven by a motor 54. A plurality of discharge ports 55 are provided at the bottom of the mixing bin 52. The discharge ports 55 are connected to the curing agent raw material delivery pipeline 3 through discharge valves. The proportioning workbench 5 also includes a control cabinet 53. The control cabinet 53 is equipped with a controller and a control panel. The controller is connected to the motor and the control panel. The control panel is equipped with a display.

[0037] Example 4:

[0038] The embodiment is basically the same as the above embodiment, except that:

[0039] like Figure 5As shown, in the present embodiment, a storage bin 6 is further included, which is in communication with the feed bin 51 of the proportioning workbench 5 through a pipeline.

[0040] Working principle of the above structure:

[0041] The storage bin 6 delivers the solidifying agent raw materials stored therein to the proportioning workbench 5, which controls the material feeding amount according to the designed proportioning. After the material is fully mixed in the feed bin 51 and the stirring bin 52, it is provided to the solidifying agent raw material conveying pipeline 3 on the stirring arm 1 through the bottom discharge port 55. One proportioning workbench 5 can simultaneously supply multiple stirring devices.

[0042] The upper end of the stirring arm 1 is fixed to the excavator mechanical arm through a pull-out pin. The hydraulic pipeline on the stirring arm 1 is connected to the hydraulic system of the excavator. The excavator mechanical arm moves the stirring device to the designated position. The hydraulic system of the excavator drives the hydraulic oil to flow, thereby starting the hydraulic motor 31 to work. The hydraulic motor 31 drives the rotary drum 21 to rotate through a speed reducer. The stirring blades 22 on the rotary drum 21 loosen and stir the soil. At the same time, the solidifying agent raw material conveying pipeline 3 on the stirring arm 1 delivers and sprays the solidifying agent, which is stirred with the soil to achieve the purpose of sludge solidification.

[0043] The stirring device of the present application can perform in-situ treatment on the foundation treatment area. The use of cement and solidifying agent can directly achieve the construction requirements of the in-situ soil. The operation of excavation and dredging can be avoided. The stability of the foundation is improved, the construction efficiency is improved, time is saved, the engineering waste soil is zero-transported, the construction process is relatively simple, the operation is convenient, the hard shell layer can be quickly formed, the recycling of resources is realized, and energy saving and environmental protection are achieved.

[0044] The stirring device of the present application is suitable for various application scenarios, such as: (1) road repair and foundation construction: the soft mud of the foundation about 1 meter deep is hardened after the surface layer is excavated; (2) site hardening: parking lot, stockyard, cargo yard, drilling well site, and production and processing plant site hardening treatment; (3) pipe gallery and trench anti-settlement solidification: the sludge is solidified before excavation and backfilling after solidification; (4) marsh solidification: marsh solidification for land reclamation, construction of large factories, and on-site solidification of sludge; (5) riverbed solidification: the sludge of the riverbed is solidified, graded and leveled, and a beautiful river is constructed; (6) bridge and tunnel: the surface foundation of the bridge is solidified, and the sludge of the tunnel is excavated and used as filling material after solidification; (7) solidification of garbage landfill: various sludge, oil stains, plastic and other corrosive materials are solidified and buried for construction of a park.

[0045] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An in-situ sludge solidification twin-turbine stirring device, characterized by: It includes a stirring arm and a stirring head. Two turbine stirring heads are symmetrically installed at the lower end of the stirring arm. The stirring head includes a rotating drum. A rotary drive device is installed in the rotating drum. Stirring blades are spirally distributed on the outer wall of the rotating drum. A sealing device is installed at the end of the rotating drum. A hydraulic pipeline and a curing agent raw material delivery pipeline are installed on the stirring arm. The hydraulic pipeline provides power to the rotary drive device to drive the stirring head to perform a rotary stirring action. The curing agent raw material delivery pipeline is used to transport and spray the curing agent raw material into the sludge.

2. The in-situ sludge solidification twin-turbine stirring device according to claim 1, characterized in that: The lower end of the stirring arm is fixedly connected to a three-way fixing seat, and both sides of the three-way fixing seat are connected to the stirring head through bearings, and an oil seal is installed between the bearing and the stirring head.

3. The in-situ sludge solidification twin-turbine stirring device according to claim 2, characterized in that: The stirring arm is welded to the three-way fixing seat as a whole, and the whole is Y-shaped or T-shaped.

4. The in-situ sludge solidification twin-turbine stirring device according to claim 1, characterized in that: The rotary drive device includes a hydraulic motor and a reducer. The hydraulic motor is installed in a three-way fixing seat and connected to the hydraulic pipeline. The output end of the hydraulic motor is connected to the input end of the reducer, and the output end of the reducer is connected to the rotating drum through a flange.

5. The in-situ sludge solidification twin-turbine stirring device according to claim 4, characterized in that: The hydraulic motors may be one or two. When a single hydraulic motor is used, a dual-output shaft hydraulic motor may be used, each output shaft of which is connected to a reducer. When two hydraulic motors are used, the two hydraulic motors rotate synchronously.

6. The in-situ sludge solidification twin-turbine stirring device according to claim 1, characterized in that: The sealing device includes a sealing head and a sealing ring. The end of the sealing head is in a bell-shaped shape. The end of the rotating drum is provided with a concave surface that matches the bell-shaped shape. At least one layer of sealing ring is provided between the sealing head and the rotating drum.

7. The in-situ sludge solidification twin-turbine stirring device according to claim 1, characterized in that: It also includes an excavator, the upper end of the stirring arm is fixedly connected to the excavator through a pull-out pin, and the hydraulic pipeline on the stirring arm is connected to the hydraulic system of the excavator.

8. The in-situ sludge solidification twin-turbine stirring device according to claim 1, characterized in that: It also includes a proportioning workbench, which includes a feed bin and a mixing bin connected from top to bottom. Both the feed bin and the mixing bin are equipped with a stirrer, which is driven by a motor. Multiple discharge ports are provided at the bottom of the mixing bin, and the discharge ports are connected to the curing agent raw material delivery pipeline through a discharge valve.

9. The in-situ sludge solidification twin-turbine stirring device according to claim 8, characterized in that: The proportioning workbench also includes a control cabinet, on which a controller and a control panel are provided. The controller is connected to the motor and the control panel, and the control panel is provided with a display.

10. The in-situ sludge solidification twin-turbine stirring device according to claim 1, characterized in that: It also includes a storage bin, which is connected to a feed bin of the proportioning workbench through a pipeline.

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