An anti-corrosion recyclable manhole cover

A manhole cover and cover body technology, applied to artificial islands, underwater structures, buildings, etc., can solve the problems of poor bearing capacity of composite material manhole covers, poor freeze-thaw resistance of cement manhole covers, high cost of cast iron manhole covers, etc., and achieve excellent corrosion resistance Anti-corrosion performance, easy to promote, and simple structure

Active Publication Date: 2018-07-20
西安国蓝环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cast iron manhole covers are expensive, not anti-corrosion, and easy to be stolen; cement manhole covers have poor freeze-thaw resistance, poor bearing capacity, and short fatigue life. They are easily corroded in places with acid, alkali and salt, and become construction waste after damage; composite materials The manhole cover has poor bearing capacity and is prone to aging and creep outdoors, which is likely to cause safety accidents

Method used

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  • An anti-corrosion recyclable manhole cover
  • An anti-corrosion recyclable manhole cover
  • An anti-corrosion recyclable manhole cover

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 and figure 2 The shown anti-corrosion recyclable manhole cover includes a cover body 1 and a centering part 2, the shape of the cover body 1 is a round cake, the centering part 2 is located at the bottom of the cover body 1, and the centering part 2 is cylindrical in shape, the central axis of the cover body 1 and the centering part 2 coincide, the cover body 1 includes a surface layer 1-1 and an inner layer 1-2, and the inner layer 1-2 A steel skeleton is provided, and the steel skeleton includes a shaped steel 1-3 shaped like a well, an upper steel wire mesh 1-4 arranged on the upper part of the shaped steel 1-3, a lower steel mesh 1-5 arranged on the lower part of the shaped steel 1-3 and The steel hoop 1-7 arranged on the outer periphery of the section steel 1-3, the surface layer 1-1 is arranged on the upper surface of the inner layer 1-2 and the outer surface of the steel hoop 1-7, and the surface layer 1-1 It is made of fine mortar added with ...

Embodiment 2

[0039] to combine figure 1 and figure 2 , the manufacture method of anticorrosion recyclable manhole cover of the present invention is:

[0040] The first step is to design the metal mold according to the structure of the manhole cover to be made, and then apply the release agent in the metal mold and preheat it to 130°C. Preheat the steel skeleton formed by connecting the lower steel wire mesh 1-5 and the steel hoop 1-7 until the temperature of the steel skeleton is constant at 150°C;

[0041] The second step is to pour thermoplastic concrete with modified sulfur at a temperature of 130°C into the preheated metal mold, and use a vibration platform located at the lower part of the metal mold to vibrate the thermoplastic concrete in the metal mold during the pouring process Tamping, smoothing, and then put the preheated steel skeleton into the metal mold, and then continue to pour thermoplastic concrete with modified sulfur at 130°C into the metal mold, and use the The vibr...

Embodiment 3

[0051] to combine figure 1 and figure 2 , the manufacture method of the anticorrosion recyclable manhole cover of the present embodiment is:

[0052] The first step is to design the metal mold according to the structure of the manhole cover to be made, and then apply the release agent in the metal mold and preheat it to 135°C. Preheat the steel skeleton formed by connecting the lower steel wire mesh 1-5 and the steel hoop 1-7 until the temperature of the steel skeleton is constant at 150°C;

[0053] The second step is to pour thermoplastic concrete with modified sulfur at a temperature of 135°C into the preheated metal mold, and use a vibration platform located at the lower part of the metal mold to vibrate the thermoplastic concrete in the metal mold during the pouring process Tamping, smoothing, and then put the preheated steel skeleton into the metal mold, and then continue to pour thermoplastic concrete with modified sulfur at a temperature of 135°C into the metal mold,...

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Abstract

The invention provides an anticorrosion recoverable well lid. The anticorrosion recoverable well lid comprises a lid body and a center band, wherein the lid body is shaped like a cake, the center band is located at the bottom of the lid body and is cylindrical, and the central axis of the lid body coincide with that of the center band; the lid body comprises a face layer and a lining layer, and a steel skeleton is arranged in the lining layer and comprises groined structural steel, an upper steel wire mesh arranged on the upper portion of the structural steel, a lower steel wire mesh arranged on the lower portion of the structural steel and a steel hoop arranged on the periphery of the structural steel; the face layer is arranged on the upper surface of the lining layer and the outer surface of the steel hoop and is made of fine mortar where modified sulfur is added, and the lining layer and the center band are made of thermoplastic concrete where modified sulfur is added. The anticorrosion recoverable well lid is novel and reasonable in structural design, simple in manufacturing process, excellent in corrosion resistance, compressive strength, extension strength and antifatigue life, wide in application range, high in practicability, good in use effect and convenient to popularize.

Description

technical field [0001] The invention relates to a well cover, in particular to an anti-corrosion recoverable well cover. Background technique [0002] For a long time, my country's municipal inspection manhole covers are generally produced with cast iron, which has high material cost, high energy consumption, high pollution, and poor corrosion resistance of the product itself. Especially the problem of theft cannot be solved, which often causes traffic hazards and personal accidents, and has negative impact on the society. Harmonious influence. [0003] At present, the manhole cover products are as follows: cast iron manhole cover, cement manhole cover, composite material manhole cover and so on. Cast iron manhole covers are expensive, not anti-corrosion, and easy to be stolen; cement manhole covers have poor freeze-thaw resistance, poor bearing capacity, and short fatigue life. They are easily corroded in places with acid, alkali and salt, and become construction waste afte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D29/14C04B28/36
CPCC04B28/36E02D29/14C04B14/28C04B14/068C04B18/08C04B14/386C04B14/42
Inventor 王许岗李天亮
Owner 西安国蓝环保科技有限公司
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