Method for preparing gravity energy storage block by using waste incineration bottom ash and waste plastic

A waste incineration and waste plastic technology, applied in the field of waste resource utilization, can solve the problems of weak bond strength between plastic aggregate and concrete matrix, no specific information on optimal material ratio, and inability to obtain gravity energy storage blocks. Achieve the effect of realizing harmless disposal, benefiting environmental protection, improving compressive strength and service life

Pending Publication Date: 2022-07-22
CHINA TIANYING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, there are still three key issues that have not been resolved: 1) Existing achievements focus more on the substitution effect of a single waste material, most of which are still in the laboratory research stage. There is no specific information on the effect, reaction principle, optimal material ratio of various waste raw materials in engineering applications, specific treatment processes, etc., and the specific properties of the produced materials are not clear; 2) Application of existing achievements The scenarios are all in the traditional construction field, and the application performance of modified concrete materials to make moving parts, especially the application performance of new application scenarios such as gravity energy storage blocks, as well as the corresponding formula and production methods are not involved; 3) For plastic aggregates The bond strength between the concrete matrix and the concrete matrix is ​​weak, which affects the performance of the concrete, and there is no suitable solution
Therefore, according to the existing public information, it is impossible to obtain a method of using waste incineration bottom ash and waste plastics to prepare gravity energy storage blocks that meet the performance requirements, and the above problems need to be solved urgently

Method used

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  • Method for preparing gravity energy storage block by using waste incineration bottom ash and waste plastic

Examples

Experimental program
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Effect test

Embodiment 1

[0054] When the waste incineration bottom ash contains 30% silica, 25% alumina and 25% calcium oxide, the method for preparing a gravity energy storage block includes the following steps:

[0055] (1) Metals are removed from the bottom ash of waste incineration, and then fully milled and sieved to make the particle size less than 50 microns.

[0056] (2) The waste plastics are washed and dried, and then pulverized so that the particle size is less than 20 mm; the pulverized waste plastics are then slowly heated to 230 ° C, and a pressure of 5.0 atmospheres is applied to them during the control process, and the The waste plastic is compacted to ensure the smooth discharge of the gas in the plastic gap; then the plastic is extruded and cut from extrusion ports of different diameters, and then made into plastic particles with a particle size of about 1.5 mm and a diameter of about 5.0 mm, respectively. Gear cylindrical plastic rods approximately 50mm in length.

[0057] (3) Surf...

Embodiment 2

[0063] When the waste incineration bottom ash contains 35% silica, 15% alumina and 30% calcium oxide, the method for preparing a gravity energy storage block includes the following steps:

[0064] (1) Remove metals from waste incineration bottom ash, add metakaolin with a weight ratio of 15%, and then fully grind and sieve to make the particle size less than 50 microns.

[0065] (2) The waste plastics are washed, dried and then pulverized so that the particle size is less than 20 mm. The pulverized waste plastics are slowly heated to 220°C, and a pressure of 3.0 atmospheres is applied to them during the control process. The plastic is compacted to ensure the smooth discharge of the gas in the plastic gap; then the plastic is extruded and cut from extrusion ports of different diameters to make plastic particles with a particle size of about 2.0 mm, and a diameter of about 7.0 mm and a length of about 2.0 mm. It is a 60mm square prismatic plastic rod.

[0066] (3) Surface modif...

Embodiment 3

[0072] When the waste incineration bottom ash contains 20% silica, 35% alumina and 35% calcium oxide, the method for preparing a gravity energy storage block includes the following steps:

[0073] (1) Remove metals from the bottom ash of waste incineration, add quartz sand with a weight ratio of 15%, and then fully grind and sieve to make the particle size less than 50 microns.

[0074] (2) Wash and dry the waste plastics and pulverize them so that the particle size is less than 20 mm. Slowly heat the pulverized waste plastics to 250°C, and apply a pressure of 4.0 atmospheres to them during the control process. The plastic is compacted to ensure the smooth discharge of the gas in the plastic gap; then the plastic is extruded and cut from extrusion ports of different diameters to make plastic particles with a particle size of about 1.8 mm, and a diameter of about 8.0 mm and a length of about 1.8 mm. 80mm cylindrical plastic rod.

[0075] (3) Surface modification of the fabrica...

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Abstract

The invention discloses a method for preparing a gravity energy storage block by using waste incineration bottom ash and waste plastics. The method comprises the following steps: (1) preparing base material powder of a geopolymer from the waste incineration bottom ash; (2) preparing the waste plastic into fine aggregate and coarse aggregate of the modified concrete; (3) carrying out surface modification on the prepared plastic particles and plastic rods by using low-temperature plasma; (4) preparing geopolymer slurry; (5) preparing high-performance geopolymer plastic modified concrete; and (6) compression molding of the gravity energy storage block. According to the method, high-added-value resource utilization of solid waste is achieved, and a new thought is provided for harmless resource treatment of the waste incineration bottom ash and the waste plastic.

Description

technical field [0001] The invention relates to the field of waste resource utilization, in particular to a method for preparing a gravity energy storage block by using waste incineration bottom ash and waste plastics. Background technique [0002] Energy storage tower gravity energy storage is to realize energy storage and release by controlling the lifting and lowering of gravity energy storage blocks. It is an innovative gravity energy storage technology with flexible location selection, low power generation cost, high energy storage efficiency and responsiveness. The advantages of high speed and other advantages are of great significance to the energy storage and peak-to-valley regulation of power generation enterprises. [0003] The gravity energy storage block is the energy storage medium of the energy storage tower gravity energy storage system. It is a moving part. It will experience different stress states such as lifting, falling, stacking, etc. during work, and be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B20/04C04B20/02C04B18/20C04B12/00C04B7/28B28B23/02B28B3/00
CPCC04B28/006C04B7/28C04B12/005C04B20/04C04B20/023C04B18/20B28B3/00B28B23/02C04B2111/00017C04B2201/50C04B2103/22C04B22/062C04B22/08
Inventor 严圣军张庆麟李军曹德标
Owner CHINA TIANYING
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