With the acceleration of urbanization, the construction industry has flourished, and the amount of construction waste has also increased significantly. Construction waste not only occupies a large amount of land resources, but also causes serious pollution to the ecological environment. However, under the promotion of policies and technological innovation, the construction waste treatment industry is ushering in an opportunity for rapid development.

1. The current situation of the development of the construction and decoration waste treatment industry

1. The amount of construction waste is large and the sources are wide

In recent years, my country's urbanization has been rapidly promoted, the construction industry has flourished, and the amount of construction waste has also increased significantly. According to data, in 2021, the proportion of construction waste generated by building demolition in my country was 45.08%, becoming the main source of construction waste. In addition, the demolition of old buildings, the construction of new buildings, and decoration waste are also important sources of construction waste. The generation of a large amount of construction waste not only occupies land resources, but also causes serious pollution to water resources, air and soil quality.

2. The resource utilization rate of construction waste is low

Although the resource potential of construction waste is huge, the resource utilization rate of construction waste in my country is still low. Compared with developed countries, there is a clear gap in the resource utilization and reuse of construction waste in my country. For example, the United States, Japan, the European Union and other countries and regions have achieved "reduction", "harmlessness", "resourceization" and "industrialization" of construction waste, while the resource utilization rate of construction waste in my country is less than 10%.

3. Policies promote industry development

In order to promote the development of the construction waste treatment industry, the country has introduced a series of policies. The new "Solid Waste Law" promulgated in April 2020 separates "construction waste" from "domestic waste" in the Solid Waste Law, clarifies government responsibilities, and puts forward the importance of source reduction. In July 2021, the National Development and Reform Commission issued the "14th Five-Year Plan for the Development of Circular Economy", proposing that the comprehensive utilization rate of construction waste should reach 60% by 2025, and to carry out demonstration projects for the resource utilization of construction waste and build 50 demonstration cities for the resource utilization of construction waste. The introduction of these policies has provided strong support for the development of the construction waste treatment industry.

4. Technological progress promotes industry development

In terms of technology, the construction waste treatment industry has also made significant progress. In the 1980s, the number of technical patent applications in my country's construction waste treatment industry was relatively small, but since 2000, especially after 2017, the number of patent applications related to construction waste treatment has increased significantly due to the strong support of the government and the establishment of relevant policies and regulations. These technological advances provide a strong guarantee for the efficient use of construction waste.

2. How to achieve efficient utilization of construction and decoration waste treatment

The key to efficient utilization of construction waste is to achieve resource recycling. Construction waste can be converted into useful products by crushing, screening, removing, and dust removal of construction waste with professional equipment.

1. Production of recycled aggregates

Concrete, gravel, stones and other materials in construction waste can be crushed and screened to produce recycled aggregates. These recycled aggregates can be used to produce recycled permeable bricks, recycled standard bricks, recycled mortar and other building materials products, replacing traditional sand and gravel, and used in housing construction, road construction and other fields.

2. Other ways of resource utilization

In addition to the production of recycled aggregates, construction waste can also be used to produce recycled commercial concrete, recycled water-stabilized materials, recycled asphalt, refuse-derived fuel (RDF), PC prefabricated components, 3D printing powder, recycled cement and other recycled products. These recycled products have a wide range of applications, such as house construction, road construction, water conservancy projects, etc., which can not only save a lot of resources, but also reduce energy consumption and emissions in the process of reproducing building materials.

3. Reuse of sludge and stone powder

In the process of construction waste treatment, a large amount of sludge and stone powder will be generated. These wastes can be mixed and stirred to make construction waste recycled planting soil by adding other wastes (such as sludge from sewage treatment plants, waste residues from wineries and food factories) and trace elements of peat soil. This recycled planting soil not only has the characteristics of natural soil, but also has the characteristics of high fertilizer efficiency, good air permeability and strong water retention, and can be used for greening and agricultural planting.

3. Liming Construction and Decoration Waste Intelligent Regeneration System

Liming Machinery has been deeply involved in the field of construction and decoration waste treatment. With many years of practical experience, it has tailored efficient and systematic solutions for diversified processing materials. We independently develop a full set of intelligent environmental protection equipment to achieve functions such as sorting, crushing, soil removal, iron removal, air separation, and flotation. The Liming Construction and Decoration Waste Intelligent Regeneration System is a one-stop complete solution launched by Liming Machinery for the treatment of construction and decoration waste.

1. System Overview

The Liming Construction and Decoration Waste Intelligent Regeneration System customizes solutions based on material characteristics and on-site conditions, and achieves efficient classification and resource utilization of construction and decoration waste through fixed and mobile treatment systems. The system covers a variety of advanced equipment, such as crawler mobile crushing stations, tire mobile crushing and screening stations, jaw crushers, impact crushers, cone crushers, sand making machines, screening machines, iron removers, etc., which can ensure efficient, energy-saving, and environmentally friendly treatment effects.

2. Technical advantages

(1) Efficient classification and treatment: The Liming Construction and Decoration Waste Intelligent Regeneration System adopts advanced classification technology, which can effectively separate different materials in construction and decoration waste, providing a basis for subsequent resource utilization.

(2) Intelligent control: The system is equipped with an intelligent control system that can monitor the equipment's operating status in real time, adjust processing parameters, and ensure stable operation and efficient processing of the equipment.

(3) Energy saving and environmental protection: Liming Machinery's equipment adopts advanced energy-saving technology to reduce energy consumption and emissions, and meet national environmental protection requirements. At the same time, the system can also reuse the waste generated during the treatment process to maximize resource utilization.

(4) Customized solutions: Liming Machinery provides customized solutions based on the specific needs of customers and site conditions. Whether it is a fixed treatment system or a mobile treatment system, it can meet the needs of customers and achieve efficient, energy-saving and environmentally friendly treatment effects.

The construction waste treatment industry is ushering in an opportunity for rapid development under the promotion of policies and technological innovation. By achieving efficient utilization of construction waste, not only can a large amount of resources be saved, but also energy consumption and emissions in the reproduction process of building materials can be reduced, and the ecological environment can be protected. As an efficient, energy-saving and environmentally friendly construction waste treatment equipment launched by Liming Machinery, the Liming Building Decoration Waste Intelligent Regeneration System has been successfully applied in many projects, providing strong support for the development of the construction waste treatment industry. In the future, Liming Machinery will continue to be committed to the research and development of more advanced and efficient construction waste treatment equipment, and contribute more to the development of the construction waste treatment industry.