Environment-friendly river bed dredging method

An environmental protection dredging and river bed technology, which is applied in river regulation, earth mover/excavator, construction, etc., can solve problems such as lifting above and around, and secondary pollution around waters, so that it is not easy to get stuck and has a simple structure , to avoid the effect of secondary pollution

Active Publication Date: 2014-03-19
CHONGQING ACADEMY OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, in actual use, when the spiral reamer stirs the sediment on the river bed, th

Method used

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  • Environment-friendly river bed dredging method
  • Environment-friendly river bed dredging method
  • Environment-friendly river bed dredging method

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Embodiment Construction

[0016] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0017] Such as Figure 1-3 Shown, the river bed environmental protection dredging method of the present invention is, install spiral reamer type dredging device on ship, and spiral reamer type dredging device mainly is made up of motor 1, reduction box 2, conveyer and spiral reamer 4, caisson 5, cover 6 and other components. The conveyor is a spiral conveyor composed of a machine base, several sections connected by a shaft 8, a spiral impeller assembly, and a cylindrical casing 3 that surrounds the spiral impeller assembly 7 and is installed on the base. The output shaft of the motor 1 is connected with the input shaft of the reduction box 2, and the output shaft of the reduction box 2 is connected with the shaft 8. Preferably, a torque-limiting coupler is also provided between the motor 1 and the reduction box 2 . The conveyor shaft 8 at the inlet end of ...

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Abstract

The invention discloses an environment-friendly river bed dredging method. The environment-friendly river bed dredging method comprises the following steps: (1) rotatably arranging a spiral reamer type dredging device which comprises a motor, a speed reducing box, a spiral reamer and a conveyor on a hull, fixedly connecting a caisson to the upper part of the inlet end of a cylindrical shell, and arranging a semicircular or cover-shaped hood above the caisson, wherein the spiral reamer is a conical spiral reamer of which the diameter of the head end is smaller than that of the tail end, and the right part of the caisson is inclined downwards to be close to the upper surface of the spiral reamer; (2) arranging a conveying pipe at the outlet end of the cylindrical shell, connecting the conveying pipe to an anchored boat or a shore, and then putting the front part of the spiral reamer type dredging device into a river bottom to enable sediment to reach the shore or the anchored boat through the conveying pipe at the outlet end of the cylindrical shell. According to the environment-friendly river bed dredging method, the stirred sediment is prevented from spreading upwards and spreading all around during working of the spiral reamer, blocking is avoided, the stress on a shaft and a base is reduced, and secondary pollution during dredging is avoided.

Description

technical field [0001] The invention relates to an environment-friendly dredging method for a river bed. Background technique [0002] At present, when a lot of sludge accumulates on lakes, offshore, and river beds, which affects water quality and waterways, we need to clean up the sludge on the beds. Some so-called dredging machines are usually used for cleaning. For example, Chinese patent CN1082115C discloses a spiral reamer type dredging device, which includes a motor, a reduction box spiral reamer and a conveyor. The screw conveyor is composed of a cylindrical casing that holds the helical impeller assembly and is installed on the base, and uses a coupling to axially connect the helical impeller assembly and the helical reamer. The spiral reamer is a cylindrical spiral reamer. When stirring the sand, the force on the shaft and the base is large, the energy consumption is high, the shaft is easy to break, and the amount of sand stirred up each time is large, which is e...

Claims

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Application Information

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IPC IPC(8): E02F5/04E02B3/02
Inventor 雷晓玲杨程杨白露
Owner CHONGQING ACADEMY OF SCI & TECH
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