With the acceleration of home renovation frequency, the amount of large garbage such as old sofas and mattresses is increasing, and their large volume and difficult to handle characteristics bring huge pressure to urban sanitation. The traditional landfill method not only wastes resources but also pollutes the environment, while the recyclable components such as wood and metal contained in large garbage make it highly resourceful. The Zhongcheng large waste disposal system has emerged, breaking the bottleneck of disposal with precise disassembly and sorting technology, realizing the transformation of large waste from "waste" to "renewable resources", and providing an efficient solution for urban solid waste resource utilization.

Driven by the acceleration of urbanization and the improvement of residents' quality of life, the production of large garbage such as old sofas, old mattresses, and discarded wardrobes is growing at an average annual rate of over 10%, becoming a major challenge in the urban garbage disposal system. This type of garbage has a large volume and complex structure, and traditional disposal methods often rely on open-air stacking or landfill. It not only occupies valuable land resources, but also may breed bacteria due to wood decay and fabric mold, causing potential pollution to soil and groundwater. However, these seemingly bulky waste materials are actually "hidden treasure trove of resources" - solid wood in sofa frames, metal springs in mattresses, furniture hardware, etc., all of which have extremely high recycling and reuse value. The Zhongcheng Large Waste Disposal System is designed to address this pain point. With mature full chain processes and independently developed core technologies, it transforms large waste from a "disposal problem" into a "renewable resource". Through precise disassembly, efficient sorting, and classification utilization, it provides an efficient and environmentally friendly solution for the resource utilization of urban solid waste, effectively solving the bottleneck of large waste disposal that has long plagued the environmental sanitation department.

1. Definition and disposal significance of large garbage

According to industry standards, large garbage usually refers to waste that weighs over 5 kilograms, has a volume greater than 0.2 cubic meters, or a length greater than 1 meter, and needs to be dismantled for effective disposal. The core categories include wooden furniture (tables, chairs, wardrobes, sofa frames), fabric furniture (mattresses, soft pack sofas), and some metal frame furniture. If this type of garbage is piled up indiscriminately, it not only occupies a large amount of landfill space, but may also cause environmental pollution due to its complex materials; And its components such as wood, metal, and fabric have extremely high recycling value, so efficient disposal is of great significance for resource recycling and environmental governance.

2. Core process flow: Closed loop of the entire chain from recycling to resource utilization

The Zhongcheng large waste disposal system has built a full process disposal system of "recycling crushing sorting resource utilization", achieving the reduction, harmlessness, and resource utilization of large waste.

Firstly, it is. The collected large garbage is transported to the disposal center by dedicated transport vehicles, and then enters the processing line in batches through an intelligent scheduling system. It is smoothly conveyed to the core processing link by a heavy-duty chain plate conveyor. The conveyor is made of high-strength wear-resistant steel plate, which can carry garbage weighing over 1 ton per piece, and the conveying speed can be adjusted in real time according to the feeding amount to avoid congestion and lay an efficient foundation for subsequent processes.

The second stage is. Large garbage is sent into a high-power crusher, and the dual axis shearing blade group inside the equipment generates strong shearing force through high-speed rotation, quickly disassembling and crushing the overall garbage such as sofas and mattresses into uniform fragments of 5-10 centimeters. This process not only achieves a reduction rate of over 80%, but also preliminarily destroys the material structure, creating conditions for subsequent sorting. The crushed mixture immediately enters the magnetic separator, which uses a strong magnetic field to automatically separate metal impurities such as iron nails, iron wires, springs, etc. hidden inside. The separation purity can reach over 98%, and the separated metal will be directly sent to the metallurgical enterprise for reuse.

The third stage is. The remaining materials after magnetic separation are mainly composed of wood, sponge, fabric, etc. They will be disposed of in two paths according to their subsequent uses: for materials with a high proportion of wood components, they can be further screened and sent to biomass fuel plants for processing into formed fuels; For components such as sponge and fabric, they are transported to incineration power plants through specialized conveying equipment as auxiliary fuels to achieve energy recovery. Throughout the process, the accompanying pulse dust removal system operates synchronously, effectively controlling dust pollution through negative pressure suction and filter bag filtration, ensuring that the dust concentration in the workshop meets national environmental standards.

3.Core equipment and technological advantages

The efficient operation of Zhongcheng's large-scale garbage disposal system relies on the technological innovation of core equipment and the scientific integration of the system. Its core equipment includes a large garbage crusher, a heavy-duty chain plate conveyor, an intelligent magnetic separator, and a dust removal system, all of which form a collaborative operation system. Taking the core equipment crusher as an example, it adopts a composite crushing structure of "dual axis shearing+wolf tooth stick", which can automatically adjust the shearing force according to the material hardness. It can efficiently crush wooden furniture and handle mattresses containing metal frames, avoiding equipment jamming. The equipment cutter head is made of high-strength alloy material, strengthened by heat treatment process, and its service life is more than three times longer than ordinary cutting tools.

The customized design of the system is another major technological highlight. The Zhongcheng technical team will tailor a treatment plan based on the customer's material characteristics (such as the ratio of wooden furniture to mattresses), discharge requirements (such as fragment particle size), and site conditions. From equipment layout to process parameter settings, precise matching is achieved. For example, for projects in high-altitude areas such as Lhasa, the motor power and sealing performance of the equipment have been specifically optimized to ensure stable operation in low-pressure environments.

In terms of quality assurance, all equipment in the system has undergone strict factory testing, and key components are made of imported brands. The manufacturing process follows the ISO9001 quality system standard. At the same time, Zhongcheng has established a comprehensive after-sales service system, providing on-site installation guidance, debugging, and operator training after the equipment arrives. Regular equipment upgrades and optimizations are carried out to ensure the long-term stable operation of the system.

4. Practical application and market feedback

At present, the Zhongcheng large waste disposal system has been operating stably in solid waste treatment projects in multiple cities such as Shanghai, Zhejiang, and Lhasa. Taking a disposal center in Shanghai as an example, the system processes 80 tons of large waste per day, with a metal recovery rate of over 95%. All other materials are converted into energy, completely changing the previous situation of "mainly landfilling and inefficient recycling" of large waste. According to customer feedback from Zhejiang, since the system was put into operation, it has not only significantly reduced the cost of garbage transportation, but also created additional economic benefits through resource recycling. The equipment failure rate is less than 1%, and the operation and maintenance costs are controllable.

With the advancement of the "dual carbon" target and the deepening of waste classification policies, the demand for large-scale waste resource disposal will continue to grow. The Zhongcheng large waste disposal system provides a replicable solution for urban large waste disposal through efficient process flow, customized technical solutions, and reliable equipment quality, helping to achieve the goals of "waste reduction, resource maximization, and environmental harmlessness". If you need to learn more about the system details, you can obtain professional consultation and technical support through the official website of Zhongcheng.

The Zhongcheng large waste disposal system takes the full chain process of "recycling crushing sorting resource utilization" as its core, and efficiently separates various resources from large waste through technologies such as heavy-duty conveying, double axis crushing, and intelligent magnetic separation. Its customized design and strict quality control ensure stable operation of the system in different scenarios, and the performance of metal recovery rate exceeding 95% demonstrates the value of resource utilization. This system not only solves the problem of large waste disposal, but also conforms to the concept of green development. Its successful application in many places such as Shanghai and Lhasa provides a practical model for urban solid waste treatment and has broad promotion prospects.