Recovery and recycling system for waste slurry in formation of rotary-jet piles or stir-jet piles

A circulatory system and a technology of agitating and spraying piles, applied in sheet pile walls, drilling equipment, drilling equipment and methods, etc., can solve the problem of limited ability to absorb cement slurry, reduce waste, ensure pile quality and operation. smooth effect

Inactive Publication Date: 2020-04-10
BEIJING ZHONGRUN BAOCHENG ENG TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, in the construction process of this construction method, in order to obtain a large pile diameter in the hard sand and pebble formation, a high-power high-pressure grouting pump, a large-diameter nozzle, and high-flow cement slurry are used. limited, so there will be a large amount of cement slurry overflowing from the drilling hole. In order to avoid large waste and reduce environmental pollution, it is necessary to treat the overflowing cement slurry

Method used

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  • Recovery and recycling system for waste slurry in formation of rotary-jet piles or stir-jet piles
  • Recovery and recycling system for waste slurry in formation of rotary-jet piles or stir-jet piles
  • Recovery and recycling system for waste slurry in formation of rotary-jet piles or stir-jet piles

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Embodiment Construction

[0036] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0037] Such as figure 1 As shown, a waste slurry recycling system of rotary grouting pile or stirring spraying pile, during the construction process of rotary spraying or stirring spraying, cement waste slurry flows out continuously from the hole opening, and a surrounding wall is set at the hole opening The weir 81 collects the waste cement slurry with enclosures. The cofferdam 81 is provided with a first mud pump 82 . The first mud pump 82 collects the waste cement slurry flowing out of the orifice and pumps it into the slurry purification equipment 88 . refer to figure 2 After cement waste slurry enters the cement slurry purification equipment 88, it first passes through the coarse screen 83 to filter the coarse particles, and the filtered waste slurry enters the slurry storage tank 12; the slurry storage tank 12 is provided with a stirring system, and t...

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Abstract

The invention discloses a recovery and recycling system for waste slurry in formation of rotary-jet piles or stir-jet piles. According to the technical scheme, the waste cement slurry flowing out fromthe opening of a drilled hole is collected and then pumped into a slurry purification device to be filtered, useful cement slurry components obtained after filtration are returned into a cement slurry stirring pool to be re-prepared and stirred to form cement grout meeting design requirements, and the cement grout is pressurized by a high-pressure pump and then jet into the drilled hole again from a drill rod nozzle of a rotary-jetting drill rig or a stir-jetting drill rig through a pipeline system. The recovery and recycling system for the waste slurry in formation of the rotary-jet piles orthe stir-jet piles has the advantages that through filtration and re-preparation of the waste cement slurry, the waste cement slurry is reutilized, the material waste and environmental pollution arereduced, and the cost of transporting the waste cement slurry outwards is reduced.

Description

technical field [0001] The invention relates to the technical field of jet grouting pile construction, in particular to a waste slurry recycling system of a jet jet pile or a stirring jet pile. Background technique [0002] The jet grouting method, also known as the jet grouting method, or the jet jet pile for short, is a high-pressure jet grouting method that emerged in the 1970s, and was fully developed and applied throughout the country in the 1980s and 1990s. Practice has proved that this method has a good effect on the treatment of silt, muddy soil, cohesive soil, silt, sandy soil, artificial filling soil and gravel soil. [0003] The rotary grouting pile uses a drilling rig to drill the rotary grouting pipe and nozzle to the design elevation of the pile bottom, and the pre-prepared grout passes through the high-pressure generating device to make the liquid flow obtain huge energy, and then spray it out from the nozzle near the grouting pipe at high speed , forming a l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/46E02D15/04E21B7/00
CPCE02D5/46E02D15/04E21B7/00
Inventor 贺再求张冰峰陈世成
Owner BEIJING ZHONGRUN BAOCHENG ENG TECH CO LTD
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