Sludge blowing, filling, conveying and curing synchronous device

Abstract

The invention discloses a sludge blowing, filling, conveying and curing synchronous device which is characterized in that a bottom discharging opening of a curing agent storage bin is connected with the feeding end of a spiral metering conveyor, an outlet of the spiral metering conveyor is connected with a first inlet of a mixing device, and a second inlet of the mixing device is in butt joint with a slurry pipeline; the output end of the mixing device is connected with an output pipeline through a pump body and is used for discharging a mixture, and the control part is used for controlling the curing agent storage bin, the spiral metering conveyor, the mixing device and the pump body to operate so as to realize mixing and discharging of the slurry and the curing agent; the curing agent can be metered, injected and mixed in the slurry conveying process, sludge is subjected to primary curing reaction before being conveyed to a hydraulic reclamation area, the construction efficiency is improved, and the construction period is shortened.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of soft soil foundation treatment and hydraulic fill, and particularly relates to a synchronous solidification device for hydraulic fill and conveying of sludge. BACKGROUND

[0002] At present, in port, reclamation, municipal infrastructure and other projects, the hydraulic fill method is often used to treat sludge and form new fill areas. However, natural sludge has high water content and low strength, and subsequent consolidation or solidification treatment is often needed to meet the engineering use requirements. The traditional method is to first fill the sludge to the construction area, and then add the solidifying agent by mechanical spreading or stirring. The traditional method must wait until the hydraulic fill operation of a whole or part of the area is completed before starting the solidification treatment. This means that hydraulic fill and solidification are two independent and serial processes, and there is a lot of waiting time, so that the newly filled area cannot be immediately rolled, foundation treated or upper structure constructed. The hydraulic fill equipment needs to stop work to give way to the subsequent solidification equipment, which greatly slows down the overall project progress. The use of excavators, bulldozers and other machinery to spread powder or granular solidifying agent on the surface of the sludge with extremely low bearing capacity after hydraulic fill is extremely easy to cause uneven spreading, and some areas are not covered at all. Overall, the traditional method has problems such as long construction period, uneven material distribution, large disturbance, low efficiency, and great influence of weather. SUMMARY

[0003] The purpose of the present application is to design a synchronous solidification device for hydraulic fill and conveying of sludge, which can complete the injection and mixing of solidifying agent during the slurry conveying process.

[0004] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows: A synchronous solidification device for hydraulic fill and conveying of sludge, comprising: a bottom discharge port of a solidifying agent storage bin connected to the feed end of a screw metering conveyor, the outlet of the screw metering conveyor connected to the first inlet of a mixing device, the second inlet of the mixing device connected to the slurry pipeline, the output end of the mixing device connected to the output pipeline through a pump body for discharging the mixture, and a control part for controlling the operation of the solidifying agent storage bin, the screw metering conveyor, the mixing device and the pump body to realize the mixing and discharge of the slurry and the solidifying agent.

[0005] Further, the solidifying agent storage bin is used to store powder or granular solidifying agent, and has a funnel shape with a cover body at the top.

[0006] Further, the screw metering conveyor comprises a motor and a speed reducer assembly, the output shaft of the motor and the speed reducer assembly is connected to a rotating shaft, the surface of the rotating shaft is provided with a spiral blade, and the shell of the screw metering conveyor is provided with a feed end and a discharge port.

[0007] Further, the mixing device comprises a cylindrical mixing cavity, a stirring shaft is arranged in the cylindrical mixing cavity, stirring blades are arranged on the surface of the stirring shaft, and the cylindrical mixing cavity is provided with an output end, a first inlet and a second inlet.

[0008] Further, a flow meter or / and a valve body is arranged at the discharge port of the curing agent storage bin, and a flow meter or / and a valve body is arranged at the inlet and the output end of the mixing device, and the control part controls the flow meter or / and the valve body to adjust the curing agent dosage and the slurry quantity.

[0009] The above technical scheme can achieve the following beneficial effects: The curing agent metering injection and mixing can be completed during the slurry conveying process, the slurry is preliminarily cured and reacted before being conveyed to the reclamation area, the construction efficiency is improved, the construction period is shortened, the reclamation and curing are simultaneously performed, the construction period is saved, the curing agent mixing is more uniform, the reaction efficiency is higher, the slurry strength development rate is improved, the degree of automation is high, the human intervention is reduced, the continuous construction needs are met, the modularized combined structure is convenient for popularization, replication and industrial application. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is a perspective view of the curing device.

[0011] Figure 2 is a front view of the curing device.

[0012] Figure 3 is a right view of the curing device.

[0013] Figure 4 is a top view of the curing device.

[0014] In the drawings: In the drawings: 1, curing agent storage bin; 2, screw metering conveyor; 3, injection device; 4, mixing device; 5, control part; 6, slurry conveying pipeline. DETAILED DESCRIPTION

[0015] The application will be further described below in combination with the drawings: For example, Figure 1As shown, a kind of sludge hydraulic filling conveying synchronous solidification device, device includes support, support top installation screw metering conveyor 2, right side arrangement mixing device 3, screw metering conveyor 2 includes motor and speed reducer assembly 21, the output shaft of motor and speed reducer assembly is connected with rotating shaft 24, the rotating shaft 24 surface installs helical blade 22, the left end of the shell of screw metering conveyor is equipped with feeding end, and the right end is equipped with discharge port 23, feeding end top installation solidifying agent storage bin 1, right end discharge port 23 and the first inlet 32 of mixing device 3 butt joint, mixing device 3 includes cylindrical mixing cavity and mixing motor and speed reducer assembly 34, is equipped with stirring rotating shaft 36 in cylindrical mixing cavity, and stirring rotating shaft surface installs stirring blade 35, and the conveying shaft of mixing motor and speed reducer assembly 34 is connected with stirring rotating shaft 36, and cylindrical mixing cavity is equipped with output end 33, first inlet 32 and second inlet 31, and the second inlet 31 of mixing device is butt joint with slurry pipeline, and the output end 33 of mixing device is connected with output pipeline through pump body, for discharging mixture.

[0016] Based on the above embodiment: the discharge port of solidifying agent storage bin 1 is equipped with flowmeter or / and valve body, the inlet and output end of mixing device 3 are equipped with flowmeter or / and valve body, and the control part controls flowmeter or / and valve body to adjust the solidifying agent dosage and slurry amount.The control part needs to control the operation of the above-mentioned solidifying agent storage bin, screw metering conveyor, mixing device and pump body at the same time.

[0017] In construction site, solidifying agent is loaded into solidifying agent storage bin 1 by loader or automatic feeding system, the metering device of screw metering conveyor 2 controls the output amount of solidifying agent, enters mixing device through first inlet, slurry pipeline enters mixing device through second inlet, and solidifying agent and slurry are mixed in mixing device 4, and then conveyed to hydraulic filling area through pump body.

[0018] In the application of embodiment, the person skilled in the art can automatically adjust the rotating speed of metering device according to the real-time slurry flow feedback of control system, to ensure that the mixing ratio is stable, and it can also be equipped with touch screen and remote system for ratio setting and historical record inquiry.The system is modular design, easy to install, maintain and construction transfer, suitable for soft foundation hydraulic filling construction process in different engineering scenes.It should be noted that the above-mentioned control system, touch screen and remote system all adopt existing technology and are applied to the present technical solution, which will not be described here.

[0019] Based on the above embodiment, pump body is added at the end of slurry conveying pipeline to output the mixture in slurry conveying pipeline to hydraulic filling area.

[0020] The above-mentioned are preferred embodiments of the present application, and for ordinary skilled in the art, various equivalent modifications of the present application without departing from the principles of the present application are all within the protection scope of the appended claims of the present application.

Claims

1. A synchronous solidification device for dredged material hydraulic transport, characterized in that: The bottom discharge port of the solidifying agent storage bin (1) is connected to the feeding end of the screw metering conveyor (2), the outlet of the screw metering conveyor (2) is connected to the first inlet (32) of the mixing device (3), the second inlet (31) of the mixing device is connected to the slurry pipeline, the output end (33) of the mixing device is connected to the output pipeline through the pump body, and is used for discharging the mixture; the control part is used for controlling the operation of the solidifying agent storage bin (1), the screw metering conveyor (2), the mixing device and the pump body, so as to realize the mixing and discharge of the slurry and the solidifying agent. The solidifying agent storage bin (1) is used for storing the powder or granular solidifying agent, and is in the shape of a funnel, and is provided with a cover body at the top.

2. The synchronous solidification device for dredged material blowing and conveying according to claim 1, characterized in that: The screw metering conveyor (2) comprises a motor and a speed reducer assembly (21), the output shaft of the motor and the speed reducer assembly is connected to a rotating shaft (24), the rotating shaft (24) is provided with a spiral blade (22) on the surface, and the shell of the screw metering conveyor is provided with a feeding end and a discharge port (23).

3. The synchronous solidification device for dredged material according to claim 1, characterized in that: The mixing device comprises a cylindrical mixing cavity, which is provided with a stirring rotating shaft (36) and a stirring blade (35) mounted on the surface of the stirring rotating shaft, and is provided with an output end (33), a first inlet (32) and a second inlet (31).

4. The synchronous solidification device for dredged material according to claim 1, characterized in that: The discharge port of the solidifying agent storage bin (1) is provided with a flow meter or / and a valve body, the inlet and the output end of the mixing device (3) are provided with flow meters or / and valve bodies, and the control part controls the flow meters or / and the valve bodies to adjust the solidifying agent addition amount and the slurry amount.

5. The synchronous solidification device for dredged material according to claim 1, characterized in that: ​

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