Project Overview

In China, the annual consumption of aggregates exceeds 20 billion tons, while non-renewable natural aggregates directly extracted from rivers, lakes and other water bodies are becoming increasingly scarce. As national ecological conservation efforts advance, green and low-carbon development has become an important development direction of the aggregate industry, and manufactured aggregates have gradually become the main source of construction aggregates in China.

Tanghe Xinmiao Renewable Resources Development Co., Ltd., a wholly state-owned enterprise, was established in March 2020 with the approval of the county government. The company focuses on river ecological restoration and the recycling of waste aggregate resources.

Guided by the mission of "Purifying Ecology, Recycling Resources" and the philosophy of "Limited Resources, Unlimited Recycling", the company plans to build a 3 million t/a aggregate production line.

Integrating systems such as crushing, screening, conveying corridors, storage silos, intelligent control, environmental dust removal and sewage treatment, the production line achieves energy‑efficient, high-yield and environmentally friendly resource utilization through intelligent remote operation and control.

Allis Saga's Professional Technology and Comprehensive Strength

Allis Saga is a national high-tech enterprise specializing in the R&D, production, sales, and service of crushing and screening equipment for the mining and engineering sectors. As a professional provider of high-end crushing and screening equipment and solutions, the company possesses core technologies in crushing and screening, and is committed to offering global professional clients end-to-end services covering project planning, design, construction, operation management, technical support, and OEM parts supply.

In February 2021, Allis Saga successfully won the bid for the Phase I project of 3 million t/a manufactured sand of Tanghe Xinmiao Renewable Resources Development Co., Ltd., providing comprehensive services including project design, construction, complete equipment supply, installation, commissioning, and trial operation.

With a project timeline of six months, Allis Saga fully leveraged its professional expertise in processes and equipment, drew on years of experience and concepts in international project operations, and implemented a comprehensive quality management system throughout the project lifecycle through its experienced and pragmatic EPC project management team.

Through strict management and control across multiple dimensions such as project quality, environmental protection, and construction safety, the company ultimately built a garden-style fully mechanical sand-making plant featuring zero dust emissions, zero sewage discharge, and full sludge recycling.

Project Highlights

No. 1 EPC Project

Allis Saga provides comprehensive EPC services covering design, construction, complete equipment supply, installation, commissioning, and trial operation.

No. 2 Fully Manufactured Sand

All finished products are high-quality manufactured sand/washed sand with a production capacity exceeding 300 t/h. The performance parameters and indicators of the manufactured sand meet applicable national standards.

No. 3 River Regulation

Guided by the environmental principle "Lucid waters and lush mountains are invaluable assets", we promote green river management, help build a complete, healthy, and stable river ecosystem, and thus facilitate sustainable development.

No. 4 Garden-Style Plant

- Zero dust emissions, zero sewage discharge, and full sludge recycling across the entire system;

NO.5 Environmentally friendly workshops

- High-quality inspection and visitor corridors designed for optimal viewing angles.

On-Site Photos

Production Process & Supporting Advantages

Bar Feeder | Jaw Crusher

Cone Crusher | Rod Mill Sand-Making

Sand Washing & Dewatering | Sludge Cake Formation

Supporting Advantages

1.All crushing, feeding, and screening equipment adopt Allis Saga's high-efficiency intelligent main equipment. The "two-stage crushing + rod mill sand-making" process is tailored to the characteristics of high fine material content in riverbed feedstock:

- The first crushing stage utilizes the FD series bar feeder which maximizes fine material screening paired with a high-efficiency jaw crusher, enhancing production line efficiency and reducing energy consumption;

- The second crushing stage employs Allis Saga's flagship MH600 single-cylinder hydraulic cone crusher, achieving more crushing and less grinding;

- The screening stage adopts Allis Saga's LS3060D high-efficiency linear screen, enabling more screening and less crushing for timely discharge and full utilization of line capacity. Scientific process and equipment selection ensure balanced system load, energy conservation, environmental protection, avoidance of over-crushing, and efficient utilization of resources.

2. The production line can be flexibly adjusted according to raw materials, realizing seamless switching among three modes: sand washing, sand making, and combined sand making & washing.

3. Reasonable crushing ratio distribution ensures smooth feeding and prevents material bridging.

4. The entire production line is designed to meet stringent environmental and safety standards during construction. High-quality inspection and visitor corridors provide optimal viewing angles.

5. The production system features a high degree of automation, with central intelligent control, remote operation, and monitoring throughout the entire process, ensuring safety and efficiency.

Xinmiao Renewable Resources

Project Success and Industry Significance

Project Experience

The successful completion and smooth commissioning of the project can be attributed to three key factors:

1. The advanced environmental protection philosophy of leaders of the local government, the owner, and the client, who actively implement and practice General Secretary Xi Jinping’s important thought that "lucid waters and lush mountains are invaluable assets";

2. The open-minded, pragmatic leadership and decision-making team of the owner, who conducted in-depth investigations and scientific decision-making in the early stage of the project, and implemented scientific resource allocation and precise coordination during project execution;

3. Allis Saga’s experienced, down-to-earth, and diligent EPC project management team. During construction, the team formulated optimal plans in strict accordance with project requirements, and carried out work in a planned and efficient manner—reducing production line commissioning time and ensuring the steady progress and timely completion of the project. The client has highly praised and affirmed the performance of Allis Saga’s team.

Profound Industry Significance

Guided by government policy, driven by market forces, and implemented in a standardized and orderly manner, the Xinmiao Project integrates river regulation with the comprehensive utilization of river waste resources, establishing a green, environmentally friendly, high-quality, and efficient aggregate industry system. It serves as a benchmark and model for river sand management and waste resource recycling.

In supporting Xinmiao Renewable Resources to build a modern, intensive, large-scale, standardized, ecological, and high-quality aggregate demonstration project, Allis Saga has actively explored and implemented innovative production processes, equipment configurations, and project management methods. The company will carefully summarize relevant experience, continue to follow up on the project’s operation, and consistently deliver high-quality services to the client.

Meanwhile, Allis Saga will strive to increase R&D investment in manufactured sand equipment and promote the application of new processes and technologies, committing to driving the high-quality development of the manufactured sand industry.