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Preparation method for greening brick from casting wastes and obtained greening brick

A technology of greening bricks and waste, applied in the field of greening bricks, can solve problems such as easy landslides, achieve the effects of improving strength, saving resources, and enhancing cohesion

Inactive Publication Date: 2018-07-20
LIUZHOU LIUJING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, during road construction, some steep slopes and the edges of mountains are prone to landslides under the action of precipitation or humidity due to construction reasons. In order to prevent the structure from collapsing due to excessive water flow on the mountain or ground, green bricks need to have a certain water retention effect. ; Similarly, the flower beds built in some squares or gardens, because the ground is a cement surface, require the bricks around the flower beds to have good water retention, and the existing green bricks cannot meet the above needs.

Method used

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  • Preparation method for greening brick from casting wastes and obtained greening brick
  • Preparation method for greening brick from casting wastes and obtained greening brick

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] In this embodiment, the greening bricks made by casting waste are prepared through the following steps:

[0037] (1) Waste collection: pre-treat the waste slag and waste sand produced in the casting process. The pretreatment includes crushing the waste slag into particles of 8 mesh or less, screening and crushing the waste sand into particles of 8 mesh or less, and then The pretreated waste slag, waste sand and waste dust are collected for use;

[0038] (2) Batching embryo making: use the waste slag, waste sand, waste dust collected in step (1) with water glass, cement, phthalate plasticizer, resin binder, polycarboxylate superplasticizer and water The mixer pressurizes and mixes, and the pressure of the pressurized mixing is 480MPa. When the humidity of the mixture reaches 15%, use a molding machine to make a rectangular ordinary brick embryo with a standard size of 240×115×53mm;

[0039] (3) Curing: Soak the brick embryo in an aluminum chloride solution with a concentr...

Embodiment 2

[0044] In this embodiment, the greening bricks made by casting waste are prepared through the following steps:

[0045] (1) Waste collection: pre-treat the waste slag and waste sand produced in the casting process. The pretreatment includes crushing the waste slag into particles of 8 mesh or less, screening and crushing the waste sand into particles of 8 mesh or less, and then The pretreated waste slag, waste sand and waste dust are collected for use;

[0046] (2) Batching embryo making: the waste slag, waste sand, waste dust collected in step (1) and water glass, cement, epoxy plasticizer, resin binder, aliphatic high-efficiency water reducer and water are pressurized by a mixer Stir and mix, pressurize and stir with a pressure of 520MPa, when the humidity of the mixture reaches 10%, use a molding machine to make a trapezoidal brick embryo for mountain construction with a size standard of 250mm for the upper bottom, 450mm for the lower bottom, and 300mm in height;

[0047] (...

Embodiment 3

[0052] In this embodiment, the greening bricks made by casting waste are prepared through the following steps:

[0053] (1) Waste collection: pre-treat the waste slag and waste sand produced in the casting process. The pretreatment includes crushing the waste slag into particles of 8 mesh or less, screening and crushing the waste sand into particles of 8 mesh or less, and then The pretreated waste slag, waste sand and waste dust are collected for use;

[0054] (2) Batching embryo making: the waste slag, waste sand, waste dust collected in step (1) and water glass, cement, phthalate plasticizer, rubber binder, naphthalene series high-efficiency water reducer and water are used in a mixer Pressurized stirring and mixing, the pressure of pressurized stirring is 500MPa, when the humidity of the mixture reaches 12%, use a molding machine to make a square plate-shaped paving brick embryo with a size standard of 300×300×50mm and friction patterns on the brick body;

[0055] (3) Curi...

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Abstract

The invention relates to a preparation method for a greening brick from casting wastes and the obtained greening brick. The greening brick is prepared from the following raw materials in parts by weight: 10-20 parts of waste residues, 20-40 parts of waste sand, 10-30 parts of waste dust, 20-30 parts of water glass, 5-10 parts of cement, 3-5 parts of a plasticizer, 3-10 parts of a binder, 2-5 partsof a water reducer and 10-30 parts of water. The preparation method includes the processes of waste collection, material preparation and blank preparation, curing and maintenance. The casting wastesare used as main raw materials, not only are the resources saved, but also the environmental pollution caused by accumulation of the casting wastes is avoided; during the curing process, an amorphoussilicic acid gel is formed by the reaction of water glass and aluminum chloride, and the crosslinking is formed between the casting wastes, the adhesive force between the casting wastes is enhanced, and the strength of the greening brick is improved; and the prepared greening brick has good air permeability and water absorption and water retention performance.

Description

technical field [0001] The invention relates to the field of recycling of foundry waste, in particular to a method for manufacturing greening bricks by using foundry waste and the prepared greening brick. Background technique [0002] Casting is an extremely complex production process that uses a variety of raw and auxiliary materials and undergoes metallurgical smelting. Casting can be divided into material preparation after the furnace, smelting, spheroidizing inoculation treatment, sand treatment, core making, molding, pouring, and sand shakeout. There are 11 structural parts including cleaning, heat treatment, production process and inspection of finished castings. During the casting process, a large amount of waste will be generated, mainly including waste sand, waste slag, waste dust and waste gas. Among them, the waste slag is molten iron slag, the waste sand is the waste sand produced after sand casting, and the waste dust is the dust collected in the cupola, the dus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/24C04B18/14C04B38/00
CPCC04B18/142C04B28/24C04B38/0038C04B2201/50C04B7/00C04B24/045C04B24/24C04B22/002C04B22/12C04B12/04C04B24/281C04B2103/302Y02W30/91
Inventor 任文强
Owner LIUZHOU LIUJING TECH CO LTD
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