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Preparation method of all-solid-waste ecological slope protection brick

An ecological slope protection and brick-laying technology, which is applied in the field of slope protection brick-laying preparation, can solve the problems of preparing slope protection products, and achieve the effect of alleviating the increase in preparation costs, extremely low preparation costs, and high promotional value

Active Publication Date: 2020-02-21
MAANSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Aiming at the problem in the prior art that it is still impossible to prepare slope protection products with performance up to the standard by using all solid waste metallurgical resources, the present invention provides a preparation method for all solid waste ecological slope protection bricks, which can use all metallurgical solid waste resources to prepare products that meet the standards. The use of required slope protection bricks has a high market value

Method used

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  • Preparation method of all-solid-waste ecological slope protection brick

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preparation example Construction

[0035] A method for preparing all solid waste ecological slope protection bricks, which can use all metallurgical solid waste resources to prepare slope protection bricks, greatly reducing the manufacturing cost of slope protection bricks, and the prepared slope protection bricks are stable, freeze-thaw resistant Both performance and erosion resistance can meet the requirements of use. The specific steps and principle of the method will be described in detail below.

[0036] In the preparation process of slope protection bricks, the particle size of the aggregate has a great influence on the performance of the finished slope protection bricks. Aggregate with a larger particle size can increase the strength of the finished slope protection bricks, but it will also increase the brickwork. Porosity reduces its waterproof and freeze-thaw resistance, and the strength of slope protection bricks made of aggregates with smaller particle sizes is difficult to meet the requirements. In...

Embodiment 1

[0053] The steel slag, tailings crushed stone (5-20mm), tailings crushed stone (1-5mm) and tailings sand are batched according to the weight of 840kg, 300kg, 290kg and 620kg respectively and sent to the collecting hopper through the belt, and then passed through the bucket elevator Transfer to a blender. Next, add 340kg of steel slag powder (102kg of steel slag powder, 238kg of slag powder) and 140L of water into the mixer, keep the water-cement ratio at about 0.4, stir while adding water, and unload the material to the conveyor after stirring evenly. The good blank raw materials are loaded into the storage hopper and sent to the silo of the molding machine, and the blank feeding trolley at the silo mouth receives the material. At the same time, send 96kg of steel slag powder (29kg of steel slag powder, 67kg of slag powder) and 288kg of tailing sand into another mixer, add 38L of water, stir until uniform while adding water, and unload to the fabric feeding trolley.

[0054] ...

Embodiment 2

[0058] The steel slag, tailings crushed stone (5-20mm), tailings crushed stone (1-5mm) and tailings sand are batched according to the weight of 720kg, 360kg, 350kg and 620kg respectively and sent into the collecting hopper through the belt, and then passed through the bucket elevator Transfer to a blender. Next, add 350kg of steel slag powder (105kg of steel slag powder, 245kg of slag powder) and 142L of water into the mixer, keep the water-cement ratio at about 0.41, stir while adding water, and unload the material to the conveyor after stirring evenly. The good blank raw materials are loaded into the storage hopper and sent to the silo of the molding machine, and the blank feeding trolley at the silo mouth receives the material. At the same time, send 96kg of steel slag powder (29kg of steel slag powder, 67kg of slag powder) and 288kg of tailing sand into another mixer, add 38L of water, stir until uniform while adding water, and unload to the fabric feeding trolley.

[005...

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Abstract

The invention discloses a preparation method of an all-solid-waste ecological slope protection brick, belonging to the field of solid waste resource utilization. The method comprises the following four steps: blank preparation, surface material preparation, brick preparation, and maintenance forming. The slope protection brick meeting use requirements is successfully prepared by completely adopting metallurgical solid waste resources according to reasonable proportions and process parameters obtained through layered pressing, vibration pressure forming and multiple tests; and preparation costis extremely low, and the metallurgical solid waste resources are recycled.

Description

technical field [0001] The invention belongs to the field of utilization of solid waste resources, and more specifically relates to a method for preparing slope protection bricks. Background technique [0002] With the rapid development of science and technology, the demand for steel in various industries has also increased sharply. In recent years, my country's annual steel production has remained at around 800 million tons, and the crude steel production capacity in 2018 even exceeded 900 million tons. However, a large amount of metallurgical solid waste products, such as steel slag and tailings, will be produced during the production of steel. Among them, steel slag is a by-product of steelmaking, with an annual production of more than 100 million tons, because of its certain particle size, strength and hydration It is active and used as a substitute for building materials. It has been tried to be used in cement, roads and building materials, but its poor stability limits...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/08B28B1/087B28B3/02E02B3/14C04B111/27C04B111/76
CPCC04B28/082B28B3/022B28B1/087E02B3/14C04B2111/00017C04B2111/27C04B2111/76C04B2201/20C04B2201/50C04B18/12C04B18/141
Inventor 饶磊李帮平桂满城张耀辉马孟臣李辽沙武杏荣申星梅曹发斌
Owner MAANSHAN IRON & STEEL CO LTD
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