Open industrial solid waste resource utilization gold mine
content
01 Company Profile 1
03 Organizational Structure 4
04 Development History 6
05 Core Technology 11
Series 11
Certification 12
Production equipment 14
Solid waste recycling material pavement construction technology 16
Road Paving Technology 19
Classic case 20
06 Features and advantages 22
Technical Features 23
Test report 24
07 Collaboration was established 31
Qingdao University of Technology Grace Research Institute of Wuhan University of Technology 31
Chinese Academy of Engineering Academician Expert Studio 32
08 Media Support 33
09 Outlook 35
Company Profile
Qingdao Grace Road Environmental Protection Co., Ltd. (hereinafter referred to as Grace Road) was established in April 2014 and is a direct subsidiary of Grace Road International Group. Grace Road International Group (CHINA Grace) is an international enterprise group facing the world, providing new materials, new technology R&D and promotion, project technical guidance, building materials trade, international engineering, etc.
After countless experiments, exploration and research, Grace Road has disposed of industrial waste, construction waste, domestic waste, etc., turning waste into treasure and completing the complete transformation and utilization of solid waste resources. The researched and developed environmentally friendly coagulants, international patented mixers, and international patented brick making machines have won 2 Chinese invention patents, 5 new type and appearance patents; 3 European, American and British patents and 5 awards; 3 provincial government awards, municipal awards 2 government awards.
In September 2016, Grace Road was recruited by the government of Jiuyuan District, Baotou City, Inner Mongolia Autonomous Region, and established Baotou Grace Road Environmental Protection Co., Ltd. It has successively cooperated with Shenhua Group, Mingtuo Group and Huadian Group to produce various types of patented environmentally friendly bricks and build demonstration roads using the waste slag produced by them in the production process of Baotou. The company's products have been tested by the building materials testing unit of Inner Mongolia Autonomous Region, and various indicators have reached or exceeded the national standards. At present, all products of Grace Road have passed ISO9001 quality management system certification, ISO14001 environmental management system certification, OHSAS18001 occupational health safety system certification, China environmental label ten-ring certification, EU CE*** certification, EU RoHS environmental protection certification, and US UL certification. ***Environmental protection certification, American FCC quality standard certification.
"Xiongguan Mandao is really like iron, and now we are stepping over from the beginning." Over the past few years, Qingdao Grace Road Environmental Protection Co., Ltd. has adhered to the business philosophy of "more, faster, better, and less", and formed a unique enterprise management model and management system. Adopt "environmentally friendly coagulant + energy-saving intelligent brick making machine, international patented mixing system to deal with industrial solid waste and construction waste recycling integrated solution". This successful technology has been widely used in international and domestic markets.
At present, the Qingdao Grace Road scientific research team cooperates with Grace Road International Group, Yale University in the United States, Qingdao Research Institute of Wuhan University of Technology and many other scientific research institutions. Study the core technology configuration, construction plan and technical requirements for the conversion and utilization of bulk solid waste under special climatic and environmental conditions such as winter and rainy seasons for the structural layer of solid waste recycled pavement materials. Form the overall construction plan for paving roads with "five steps and one road" solid waste recycled pavement materials for stirring, transporting, spreading, grinding and protecting. On November 19, 2019, Grace Road Environmental Protection Co., Ltd. initiated the establishment of the China Green Building Materials Industry Development Alliance Special Committee on Waste and New Materials in Qingdao. Further strengthen industry standards, improve project quality, realize high-quality conversion and utilization of bulk solid waste, and use the "blockchain" business model to lead the road of grace to set sail again.
company culture
Development strategy: turning waste into treasure, making merit in the present, benefiting future generations, and benefiting in the future.
Core concept: turn waste and solid mountains into gold and silver mountains, enterprise development, and employee prosperity.
Entrepreneurial spirit: Loyalty to the cause, the pursuit of better.
Enterprise style: tell the truth, do practical things, and seek practical results.
Management philosophy: everyone is responsible, and everything meets the standard.
Marketing concept: grow together with customers.
Quality concept: to do high-quality projects, quality is the lifeblood of the enterprise.
Talent concept: Doing your job well is talent.
Business philosophy: resource sharing, win-win cooperation.
Education and training concept: preaching, teaching and solving doubts, it is the duty. It is our duty to promote enterprise development.
Enterprise Architecture and Cooperation Unit
Dedication, dedication, honesty and trustworthiness, to build a professional team.
Zhang Kangmin (former deputy director of the major project department of the National Development and Reform Commission) presided over the meeting
The first from the right, Jiang Minglin (former deputy director of the Counselor's Office of the State Council, former counselor of the State Council)
The second from the right, Zheng Kunsheng (former head of the Disciplinary Inspection Team of the Central Commission for Discipline Inspection in the Ministry of Construction, former deputy director of the Hong Kong Liaison Office, former chairman of China Building Energy Conservation Association)
Zheng Kunsheng delivered a speech at the conference
Leaders inspected Qingdao Aidi Grace Road Environmental Protection Co., Ltd.
development path
1. From 2009 to 2014, the company set up a project to tackle key problems, carried out repeated experimental tests on the research and development and utilization of coagulants, and successfully achieved high strength, anti-freeze and thawing, zero emission of toxic and harmful gases, dissolution of toxic substances, no secondary pollution, etc. Various domestic and international technical index requirements.
2. In April 2014, Qingdao Grace Road Environmental Protection Co., Ltd. was established.
3. In July 2016, the People's Government of Jiuyuan District, Baotou City, Inner Mongolia officially signed a contract with Qingdao Grace Road Company to introduce the Grace Road project.
4. In September 2016, Baotou Grace Road Environmental Protection Co., Ltd. was established.
5. In 2016, Shenhua slag depot used gasification slag to build roads.
6. In 2016, Qingdao Grace Road Company built roads with solid waste in Shenwu project.
7. In April 2017, Qingdao Grace Road Company formally signed an industrial solid waste treatment agreement with Mingtuo Group, and carried out extensive use of chrome slag to build roads and make bricks.
Li Jiheng, Secretary of the Party Committee of Inner Mongolia Autonomous Region, and Bu Xiaolin, Chairman of the Autonomous Region, inspected the construction site of Mingtuo Group and spoke highly of it.
8. In 2018, the company established a laboratory, which can complete concrete proportioning test, impermeability test, pressure strength test, etc., and provide customers with solid waste material mixing ratio, strength testing, impermeability testing and other services.
9. In October 2018, Qingdao Grace Road Environmental Protection Co., Ltd. officially cooperated with the National Building Materials Industry Technical Information Institute to jointly promote the Grace Road environmental protection technology.
10. In January 2019, a high-tech promotion meeting was held to promote the environmental protection technology of Qingdao Grace Road.
11. In 2019, Qingdao Grace Road Environmental Protection Co., Ltd. has accumulated a lot and entered a stage of rapid development:
1. Reached a cooperation agreement with Shanxi Jinneng on the treatment of industrial solid waste such as steel slag and ash.
2. Reached a cooperation agreement with Chengde, Hebei on iron ore slag road construction.
3. Reached a cooperation agreement with Shanxi to build roads with coal gangue.
4. Road construction of iron ore slag in Damaoqi mining area, Baotou City
5. Use construction waste to build roads in Beijing.
6. Reached a cooperation agreement with Shanxi Jinneng on road construction with waste residues.
8. Solid waste recycled materials pavement technology to build river banks in China's South-to-North Water Diversion Project.
9. In the face of the domestic and international new crown epidemic in 2020, Grace Road Environmental Protection Co., Ltd. strengthens teamwork and focuses on scientific and technological research and development to ensure the smooth progress of engineering projects.
Cooperated with Qingdao Research Institute of Wuhan University of Technology to establish Qingdao Institute of Technology Grace Research Institute;
Established in collaboration with Shaanxi University of Technology;
Reached a cooperation agreement with Shandong Linyi phosphogypsum treatment;
Qingdao Aidi Grace Environmental Protection Co., Ltd. was established in Grace Technology Industrial Park.
10. In December 2020, Qingdao Grace Road successively signed contracts with China Railway Design Institute Group (Hainan) Co., Ltd., China Railway Construction Engineering (Hainan) Construction Group Co., Ltd., and China Communications Construction (Hainan) Holding Group Co., Ltd. to reach a cooperation agreement.
11. In December 2020, Qingdao Grace Road signed a contract with Beijing Enterprises Laizhou Mine.
11. On December 8, Qingdao Grace Road Environmental Protection Co., Ltd. successfully hosted the 2020 National Solid Waste New Material Technology Application Promotion Forum on the west coast of Qingdao.
More than 150 people from academia, business and major news media attended the forum. The forum was chaired by Zhang Kangmin, former deputy director of the Major Projects Department of the National Development and Reform Commission. Jiang Minglin, former deputy director of the Counselor's Office of the State Council and former counselor of the State Council, former head of the Disciplinary Inspection Team of the Central Commission for Discipline Inspection in the Ministry of Construction, former deputy director of the Hong Kong Liaison Office, and former chairman of China Building Energy Conservation Association, Zheng Kunsheng attended the forum and delivered speeches.
Wang Yinan, a researcher at the Development Research Center of the State Council, delivered a video speech to the forum. She said that solid waste treatment is related to the national economy and people's livelihood. The newly revised "Law on the Prevention and Control of Environmental Pollution by Solid Waste" established a new pattern of solid waste pollution prevention and control, pointed out specific directions and important measures for promoting the improvement of pollution prevention and control work and solid waste management system, and also provided new materials for the promotion and application of solid waste materials. strong policy support and legal protection.
At the same time, she congratulated Qingdao Grace Road Chinese Academy of Engineering Academician Expert Studio, and pointed out that the Expert Studio will definitely promote the innovative development of solid waste new material technology application, promote the industrialization of resource recycling, and provide a strong guarantee for the construction of ecological civilization .
During the conference, the unveiling ceremony of Qingdao Grace Research Institute of Wuhan University of Technology, Green Building Materials Industry-University-Research Demonstration Base of Qingdao Research Institute of Wuhan University of Technology, and China Solid Waste New Materials Hundred People Forum were held. Xie Jiqiang, chairman of Qingdao Grace Road Environmental Protection Co., Ltd., and Zhongxun Xinke Environmental Protection Technology Co., Ltd., Qingdao Chengyang District Chengtou Group, Hebei Keleda Group, Wuhan University of Technology, China Building Materials News, Shandong Expressway Group, etc. Representatives of more than 10 related enterprises signed a strategic cooperation agreement. To attract more enterprises and units to participate in the solid waste recycling business with a larger pattern and higher quality.
Features:
Core Technology
series products
Grace Road Environmental Coagulant
1. Type A coagulant for standard bricks
2. Special C-type coagulant for anti-vibration bricks
3. Type B coagulant for hollow bricks
4. XC type coagulant for road construction and paving
Features
"Qingdao Grace Road Environmental Coagulant" is a patented product with the highest level of technology certified by Tsinghua University, Yale University in the United States, Cambridge University in the United Kingdom, Sydney University in Australia, and Hong Kong University in China. Adding 0.2%-0.3% to various industrial solid waste and construction waste can condense the above-mentioned materials and harmful elements, and produce high-strength, non-secondary pollution-free building materials through pressure, and pave ecological and environmental protection roads.
"Qingdao Grace Road Patented Coagulant" is composed of various catalysts including sodium chloride, citric acid and electrolyte, and has excellent surface activity. It can balance the charge on the surface of the raw material particles, reduce the thickness of the electric double layer, strengthen the chemical reaction and physical reaction process of the mixture, make the mixture form a stable composite structure, and improve the water stability and strength of the surface layer of the structure.
The China Academy of Building Materials used rock formation analysis, electron microscope scanning, X-ray diffraction, thermogravimetric and differential thermal analysis and other methods to analyze the solidification mechanism of the core samples of Grace Road's patented solidified raw materials. The solidification effect of s is an integrated behavior, with both physical adsorption and entanglement as well as chemical reactions. It is very effective for the securon effect produced by mixed raw materials, has excellent strength and water stability, and also has good freeze-thaw resistance.
Certification
The solid waste treatment technology of Qingdao Grace Road Environmental Protection Co., Ltd. has reached the international leading level. He has 2 Chinese invention patents, 5 new type and appearance patents, 3 European, American and British patents, and has won 5 awards.
Production equipment
A-type automatic unsupported automatic packaging green brick production line Output: Take standard brick (240×115×53mm) as an example, the forming time takes 20 seconds, the number of each forming is 105, and the standard brick can be produced per hour. 18900 pieces. Each standard brick weighs 2.5 kilograms, and consumes 47,250 kilograms of industrial solid waste per hour, or 47.25 tons. Working 10 hours a day, 330 days a year, can consume 155,925 tons of industrial solid waste every year. The entire production line requires 6 workers, 1 loader and 1 forklift.
International patented mixer
1. It only takes 3.7 seconds to mix the mixture from the inlet to the outlet of the mixer, and the uniformity of the mixture is perfect. The interior of the international patented mixer is composed of patented crushing teeth, patented mixing teeth and push teeth. The advanced intelligent control system automatically adjusts the speed of the mixer according to different brick types and output requirements, and can produce 200 cubic meters of raw materials per hour.
2. The entire mixer system can automatically generate the operation data of the mixing system according to the automatically stored production data, which is convenient for workers to operate.
3. Each transmission point adopts advanced speed control system to realize flow control of various raw materials.
4. The dry humidity of the finished mixture is detected by the advanced moisture detection system, sent to the PLC for comparison with the set data, and the flow rate of the high-pressure water pump is automatically adjusted in real time, or it can be manually controlled manually.
5. The storage of raw materials in the mixer system fundamentally solves the problem of clogging of raw materials, and the vibration system runs automatically.
6. Unique mixer system, one machine can be used for two purposes, which can not only repair roads but also produce environmentally friendly bricks.
Solid waste recycling material pavement construction technology
The use of solid waste recycling materials to build roads does not require natural stones and sand, only coagulants and bulk solid wastes are used, which can well protect and improve the environment.
(1) Solid waste recycled pavement material, structure and performance
From smelting slag, gasification slag, slag, coal gangue, desulfurization gypsum, tailings slag, fly ash, saw mud, domestic sludge, chemical sludge, phosphogypsum, domestic waste incineration slag, weathered soil, alkali slag, etc. The mixture of industrial solid waste and construction waste mixed with cement and coagulant in proportion has certain strength and durability. Relevant performance requirements for concrete.
The structural layer of solid waste recycled pavement materials is divided into road surface layer, base layer and sub-base. When the structural layer is constructed in special climatic environments such as winter and rainy seasons, a special construction plan should be formulated according to the actual situation of the project.
(2) Coagulant
It is an additive used to strengthen the chemical reaction and physical winding of solid waste recycled pavement materials, so that solid waste recycled pavement materials can form a stable complex structure and improve the water stability and strength of the surface layer of the structure.
(3) Factory mixing method
The construction method is to set up a mixing base in a centralized manner, and use special equipment to mix and prepare the recycled mixture.
(4) Composition and design steps of solid waste recycled pavement materials
1. Determine the moisture content and specific gravity of raw materials.
2. The amount of coagulant should be selected according to 0.2%.
3. The heavy-duty compaction test method should be used to determine the maximum water content and maximum dry density of different cement contents, mixtures.
4. Calculate the dry density of the specimens with different cement contents according to the specified degree of compaction.
5. Prepare solid waste recycled pavement material test pieces, the size of the test pieces is Φ150mm╳150mm, and the number of test pieces is not less than 9.
6. The maintenance and compressive strength measurement of the specimen should refer to the relevant requirements of JTG E51 "Test Regulations for Inorganic Binder Stabilizing Materials of Highway Engineering".
7. According to the results of the 7d unconfined compressive strength test, the cement content and the coagulant content are selected, and the minimum cement content should not be less than 3%. Calculate the maximum dry density and maximum dry density by interpolation. moisture content.
(5) Construction process and process requirements of solid waste recycled pavement materials
1. Mixing of solid waste recycled pavement materials
The production of solid waste recycled pavement materials adopts Grace Road International patented mixer and supporting technology for production.
The mixing shall be carried out according to the material specifications and proportions determined by the proportion design of solid waste recycled pavement materials.
The proportion of pellets in the raw materials is not less than 20%-30%, the size of the pellets is 5mm-8mm, and the base and low base layers can reduce the requirements.
The mixing plant shall provide the site with the product qualification certificate, the amount of cement, the amount of coagulant, the amount of solid waste admixture, the mixing ratio of the mixture, and the standard value of R7 strength.
2. Transportation of solid waste recycled pavement materials
A dump truck is used.
According to the size of the project and the length of the transportation distance, a sufficient number of transport vehicles are equipped. The compartment should be cleaned before loading, and there should be no debris. After loading, measures should be taken to prevent moisture loss.
3. Paving of solid waste recycled pavement materials
(1) The stacking time of the mixture should not be too long, and it should not exceed 4 hours from the discharge of the mixer to the completion of paving and rolling. When the mixing plant is far away from the paving site, the amount of water during mixing can be appropriately increased (generally controlled within 5%), and it should be covered during transportation to prevent water evaporation. After the finished material is transported to the road construction site, the paver shall be paved in place as soon as possible according to the pre-set elevation and punctuation, and the corners and other places that cannot be paved by the paver shall be paved at the same time and leveled to the specified elevation for paving. .
(2) The compaction coefficient should be determined by test before construction. The compaction factor should be 1.10-1.33 (depending on the material).
(3) The maximum compaction thickness of each layer of the mixture should not be greater than 200mm, and should not be less than 100mm.
(4) The mixture should not exceed 4h from stirring until the paving is completed. The amount of materials should be calculated according to the construction length of the shift.
4. Rolling of solid waste recycled pavement materials
(1) When the compacted thickness of the road surface is 150mm-200mm, the large-scale retractable paver is used for paving, and the 22-26-ton rubber wheel roller and the 6-8-ton double steel wheel are used for rolling and forming.
(2) When the compacted thickness of the pavement is 100mm-150mm, a large retractable paver should be used for paving, and a roller with a rubber wheel of less than 22 tons and a double steel wheel of 3 tons to 6 tons should be used for rolling and forming.
(3) Roll forming at one time within the specified time.
(4) During the rolling process, the surface of the mixture should always be kept moist. The straight section of the road surface is rolled from the shoulders on both sides to the road center; the flat curve section is rolled from the inner shoulder to the outer shoulder. When rolling, the rear wheel should overlap 1/2 of the wheel width and must exceed the seam between the two sections. When the rear wheel compacts the full width of the road, it is one pass, and the rolling is carried out until the required compactness prevails. The two sides of the road should be pressed twice more. destroy. Small-scale road rollers should be used for the corners that cannot be rolled by the road roller, and the workers should roll them in place, generally 2 to 3 times more than the road surface, until they are compacted and reach the specified elevation. After compaction, the surface should be flat without wheel traces or bulges, and the cross section should be correct, and the road arch should meet the requirements.
(5) When the compaction thickness of the paved roadbed exceeds 20 cm, it should be paved in layers of 20 cm per layer, and the minimum compaction thickness of each layer is 10 cm. When the paving layer is more than one layer, first lay one layer, if the next layer is laid on the same day, it needs to be completed within 6 hours, otherwise the next layer needs to be laid after 2 days.
5. Stubble connection and maintenance of the base of the mixture
Cover with mulch for 2-7 days after the road is compacted and formed. When the temperature is above 30°C, the construction joint will be cut finally; when the temperature is lower than 30°C, the construction joint will be cut after 2-3 days; in order to ensure the quality, construction is not allowed below 0°C. The pavement construction joints are set at 3 times the road width, and the joint width is 10-15mm. When the strength reaches about 10MPa, use a slitter to cut the construction seam. When the front and rear construction joints are connected, the hardened road surface should be cut neatly with a cutting machine, and the hardened road surface should not be damaged during subsequent construction and rolling. The side slopes on both sides of the road shall be compacted in place simultaneously with the road surface by manual manual small drum rollers, and shall be constructed in place according to the elevation and size required by the drawings, and shall be reasonably connected with the subgrade slope. It can be put into use after 3-7 days of road maintenance.
Road paving technology comparison and road semi-rigid paving technology (lack of technical copy)
Road semi-rigid paving technology (lack of technical copy)
Engineering case
Qingdao Grace Road Environmental Protection Company uses domestic waste incineration slag, construction waste, gasification slag, slag, coal gangue, saw mud, red mud, smelting slag, desulfurization gypsum, tailings slag, fly ash, domestic sludge, chemical sludge, The strength of various types of green bricks produced from solid wastes such as phosphogypsum, regolith, and alkali slag far exceeds the national standard.
The semi-rigid concrete road construction of Qingdao Grace Road Environmental Technology Co., Ltd. has exceeded the strength of concrete. This road does not need to cut expansion joints, has no cracks on the whole, and can be opened to traffic normally in seven days.
Features and advantages
Technical features: The integrated solution of industrial solid waste and construction waste treatment using Qingdao Grace Road's "environmentally friendly coagulant" and "energy-saving intelligent brick making machine and international patented intelligent mixing system" has the following unique advantages:
More: The average consumption rate of industrial waste is more than 90%;
Fast: After the road is laid and rolled, it can be passed in 3 days under normal temperature, and the strength can exceed the national standard in 7 days; the patented brick making machine produces 18,900 standard bricks per hour;
Good: Road and building materials products meet or exceed relevant national quality standards. The use of solid waste semi-rigid concrete to build roads can exceed the strength of traditional concrete, no need to cut expansion joints, the overall road has no cracks, and it can be opened to traffic normally in seven days.
Province: The amount of solid waste treatment reaches 100%, and the amount of environmental protection coagulant added is not higher than 0.2%. The brick-making process has no smoke, no pollution, energy saving and emission reduction, and dust-free production; the overall plant covers a small area, and it is produced on the same day, naturally maintained, and leaves the factory the next day.
Various types of environmentally friendly bricks
Test Report
The 28-day unconfined compressive strength of the road built by Qingdao Grace Road Environmental Protection Co., Ltd. using ferrochromium slag is 33.7MPa, and the strength reaches the strength of C30 cement concrete, but the cost is much lower than the cost of cement road construction.
Qingdao Grace Road Environmental Protection Co., Ltd. uses domestic waste incineration slag, construction waste, gasification slag, slag, coal gangue, saw mud, red mud, smelting slag, desulfurization gypsum, tailings slag, fly ash, domestic sludge, chemical sludge , phosphogypsum, regolith, alkali slag and other solid waste production of various types of environmentally friendly bricks, the strength has reached or far exceeded the national standard.
Collaborative establishment
Qingdao University of Technology Grace Research Institute of Wuhan University of Technology
Relying on the State Key Laboratory of Silicate of Wuhan University of Technology, Qingdao Institute of Grace Research, Wuhan University of Technology, gives full play to the advantages of Qingdao Research Institute of Wuhan University of Technology in scientific research, technology, brand, social resources and marketing; and Qingdao Grace Road Environmental Protection Co., Ltd. The advantages of technology, equipment, social resources and market in the comprehensive utilization of solid waste; the advantages of "China Building Materials News" in communication, planning, publicity and marketing, jointly promote the in-depth cooperation of industry, universities and research institutes, and provide comprehensive solid waste resources for governments and enterprises at all levels. Take advantage of solutions.
Chinese Academy of Engineering Academician Expert Studio
On December 8, 2020, Qingdao Grace Road Academician and Expert Studio of the Chinese Academy of Engineering was established online. The establishment of the studio will surely promote the innovative development of solid waste new material technology application, promote the industrialization of resource recycling, and provide a strong guarantee for the construction of ecological civilization.
media support
Outlook
On April 29, 2020, the 17th meeting of the Standing Committee of the 13th National People's Congress officially passed the newly revised "Law of the People's Republic of China on the Prevention and Control of Environmental Pollution by Solid Waste". to be implemented. It is not just a law that sets environmental management obligations and responsibilities for polluters. The impact of the solid waste law on an enterprise actually penetrates into the whole process of enterprise operation, and can even change the profit model of an enterprise. In addition, the new solid waste law has also reached a new height in terms of "severe punishment and heavy punishment" for environmental violations. The amount of fines for many violations is 10 times that of the current solid waste law.
Taking this opportunity, Qingdao Grace Road will continue to strengthen the "production, learning and research" projects with domestic and international famous schools, give full play to the advantages of scientific research and joint construction, and manufacture high-performance sponge bricks, fly ash, and slag road construction in chrome slag. Consolidate the existing achievements in the utilization of solid waste recycled materials such as gasification slag for road construction, continue to research and develop, and continue to innovate. Operating in the "blockchain" model, high standards and high quality drive the rapid development of the industry. Truly turn the "solid waste mountain" into a "gold and silver mountain" and realize the high-quality "green Chinese dream". Create brilliance for the construction of "Beautiful China"!
