However, there is still a lot of application space and potential in areas with hot summers and cold winters and hot summers and warm winters in my country. Compared with external insulation systems, internal insulation systems are used indoors, so the technical performance requirements are not as stringent as those used on the outside of exterior walls. The cost is low, the temperature rises (cools down) quickly, and it is suitable for use in rooms with intermittent heating. The materials currently used for internal insulation of exterior walls are mainly foam insulation boards, insulation glue and other materials. Foamed cement insulation board, also known as foam concrete insulation board and inorganic fireproof insulation board. It is a lightweight bubble-like thermal insulation material made from ordinary Portland cement, fly ash, foam stabilizer, admixture, etc. through compounding, mixing, foaming, cutting and other processes. Its outstanding feature is the concrete interior. Forming closed foam cells with a diameter of 1-3mm, making the concrete lightweight and possessing thermal insulation properties. Foam insulation board is a high-performance inorganic insulation material. It is a porous, lightweight, high-performance, environmentally friendly board. It is a kind of A1 grade mechanical insulation with low thermal conductivity and good thermal insulation performance, which is produced from a variety of inorganic gelling materials and modifiers, foam stabilizers and other additives through mixing system, curing system, cutting system and other equipment. Material, high temperature resistance and aging resistance. It has good fireproof and thermal insulation properties, good thermal insulation performance, high compressive strength and adhesion. It has the characteristics of strong strength, good sound insulation performance, convenient construction, energy saving and environmental protection. It is currently widely used in building exterior wall insulation systems and exterior wall decoration, and has broad market prospects. Cement foam insulation board and supporting material construction project Based on the above advantages of cement foam insulation board, Baoji Longtengyuan Insulation Material Co., Ltd. rents a factory building and site on the south side of the second group of highways in Liming Village, Muyi Town, Chencang District (see the lease contract for details Attachment 1), a new cement foam insulation board project with an annual output of 18,000 cubic meters.
The project was completed and put into operation in March. This project is a pre-approval project. In 2018, the Chencang Branch of the Baoji Municipal Environmental Protection Bureau ordered the construction unit to immediately go through the environmental assessment approval procedures and build and improve pollution prevention and control facilities. In the comprehensive rectification and cleanup of "scattered and polluted" enterprises in Baoji City, this project belongs to the "scattered and polluted" industry improvement and transformation project, and is included in the "Baoji City's Second Batch of Comprehensive Rectification List of "Scattered and Polluted" Enterprises in 2018" and the "Polluting" Industrial Enterprises ". This time, we will focus on the rectification requirements of the Chencang Branch of the Baoji Municipal Environmental Protection Bureau and the rectification requirements of Baoji City for "loose and polluting" enterprises, and propose rectification measures for the project, requiring them to standardize production, increase environmental protection facilities, and achieve relevant improvements and transformations . Require. In accordance with the relevant provisions of the "Environmental Protection Law of the People's Republic of China", the "Environmental Impact Assessment Law of the People's Republic of China" and the State Council Order No. 253 "Regulations on Environmental Protection Management of Construction Projects", our company was entrusted by Baoji Longtengyuan Insulation Materials Co., Ltd. Undertaken the environmental impact assessment of the project, prepared the "Environmental Impact Report Form for Cement Foam Insulation Board Construction Project" based on the site conditions and conducted investigations in accordance with the requirements of the "Technical Guidelines for Environmental Impact Assessment". 2. Analysis and evaluation of relevant situations 1. Industrial policy compliance analysis: This project does not fall into the restricted and eliminated categories of the "Guiding Catalog for Industrial Structural Adjustment (2011 Edition, 2013 Revised Edition)". At the same time, according to the "Shaanxi Province Restricted Investment Industry Guidance Catalog (2007 Edition)", the project does not It is a restricted investment project. Therefore, the construction of this project complies with national industrial policies and relevant policies of Shaanxi Province.
2. Planning and site selection rationality analysis The project is located on the south side of the second group of highways in Liming Village, Muyi Town, Chencang District, Baoji City, Shaanxi Province. The water supply comes from the local municipal water supply network, and the power supply comes from the municipal power supply. According to the document "Instructions for Comprehensive Remediation of Scattered Polluting Enterprises in Chencang District (No. 8-18)" of the Chencang Branch of the Baoji Municipal Land and Resources Bureau, after on-site verification and review, relevant information showed that Baoji Longtengyuan Insulation Materials Co., Ltd. has been transferred to Baoji Municipal Land The Chencang Branch of the Bureau of Resources (Baoji Municipal Bureau of Land and Resources Chen Jianzi (2018) No. 40) issued an administrative penalty decision. 2. Layout rationality analysis. This project is mainly divided into production area and office and living area. The factory gate is located on the north side of the factory area. The office and living area mainly includes built offices, lounges, duty rooms, etc., with a total construction area of 100m and is located on the north side of the factory. The production area is located on the southeast side of the factory. There is an overall production workshop with a building area of 200m, a one-story brick-concrete structure and a floor height of 5m. The workshop has 3 fully automatic blow molding machines, crushers, air compressors and other equipment; the east side of the factory is a warehouse; the middle of the factory is an open space with clear divisions of project functions. The cement foam insulation board and supporting material construction project workshops are set up separately, which can effectively reduce the impact of noise on the surrounding environment. The project layout is reasonable. 3. Compliance analysis of the "Notice of the State Council on Issuing the Three-Year Action Plan to Win the Blue Sky Defense War" (Guofa [2018] No. 22) According to the requirements of Guofa [2018] No. 22, Baoji City, Shaanxi Province is a key area , after three years of efforts in 2020, we will significantly reduce the total emissions of major air pollutants, coordinate the reduction of greenhouse gas emissions, and further significantly reduce fine particulate matter. (PM2.5) concentration, the number of heavily polluted days has been significantly reduced, the ambient air quality has been significantly improved, and the people's happiness with blue skies has been significantly enhanced.
Strengthen the comprehensive rectification of "scattered, disorderly and polluting" enterprises. Comprehensively carry out comprehensive rectification actions for "scattered, disorderly and polluting" enterprise clusters. According to industrial policies, industrial layout planning and land, environmental protection, quality, safety, energy consumption and other requirements, formulate standards for the rectification of "loose and polluting" enterprises and clusters. This project was included in the "Baoji City's Second Batch of Comprehensive Rectification List of "Scattered and Polluted" Industrial Enterprises in 2018." During this environmental assessment stage, the construction unit will focus on Baoji City's rectification requirements for "loose and polluting" enterprises, propose project rectification measures, standardize production, add environmental protection facilities, and meet relevant requirements for upgrading and transformation. Therefore, the project actively responded to relevant requirements and is currently suspending production for rectification, which is consistent with the "Notice of the State Council on Issuing a Three-Year Action Plan to Win the Blue Sky Defense War." 4. Comply with the "Shaanxi Province Three-Year Action Plan to Control Smog with an Iron Fist and Win the Battle to Defend the Blue Sky (2018-2020) (Revised Edition)" ", it is necessary to strengthen the comprehensive rectification of "scattered, disorderly and polluting" enterprises, and comprehensively carry out comprehensive rectification actions targeting "scattered, disorderly and polluting" enterprises and clusters, based on industrial policies, industrial layout planning and land, environmental protection, quality, safety, energy consumption and other requirements, Carry out a network investigation on the province's "loose and polluting" enterprises and clusters that have met the rectification standards, establish a management ledger, and implement classified disposal according to the principle of stopping first and then treating. For those listed in the upgrade and transformation category, set industry benchmarks and implement cleaner production technology Transform and comprehensively improve the level of pollution control; establish a dynamic management mechanism for "scattered and polluting" enterprises, resolutely put an end to the construction of "scattered and polluting" enterprise projects and ban "scattered and polluting" enterprises. Businesses moved elsewhere and were revitalized.
This project was included in the "Baoji City's Second Batch of Comprehensive Rectification List of "Scattered and Polluted" Industrial Enterprises in 2018" and is an "upgrading and transformation project". During this environmental assessment stage, the construction unit will focus on Baoji City's rectification requirements for "loose and polluting" enterprises, propose project rectification measures, standardize production, add environmental protection facilities, and meet relevant requirements for upgrading and transformation. Therefore, the project actively responded to relevant requirements and is currently suspending production for rectification, which is in line with the "Shaanxi Province Three-Year Action Plan to Control Haze and Win the Blue Sky Defense War (2018-2020)" (revised version). 5. "Three lines and one order" "And ecological protection red line compliance analysis: There is no new land for the project (the land is leased). This area does not belong to the ecological red line areas where development is prohibited such as nature reserves, forest parks, scenic spots, world cultural and natural heritage sites, and geological parks. Focus on protecting cement foam insulation boards and supporting materials construction projects within the status red line area and the fragile ecological protection red line area. The project construction will not occupy the ecological red line protection zone. The bottom line of environmental quality: Although the waste gas, waste water, noise, etc. generated by the project implementation have a negative impact on the atmosphere The environment, acoustic environment, and surface water environment will have certain negative impacts, but the impact will be very small and will not change the environmental quality. Environmental functional area. The bottom line of environmental quality can be strictly observed... Resource utilization online: The main raw materials of this project are construction waste and sand. , cement, and construction waste belong to the comprehensive utilization of waste solid waste; the electricity consumption of the project is within the scope of the regional electricity consumption capacity, that is, the project construction will not exceed the utilization of resources and the grid.
3. Project Overview 1. Basic Project Information This project is located on the south side of Liming Village Road, Muyi Town, Chencang District. It leases idle factories, warehouses and vacant land for construction. Please see the attached picture for the specific location. The project has a total investment of 2 million yuan and a total land area of about 7320m2. It mainly produces cement foam insulation boards and does not have a boiler. 2. Construction Content and Scale This project rents an existing factory building as a cement foam insulation board production and office area. The main contents of the project are detailed in Table 1-1. Table 1-1 List of main project contents Construction content Construction scale and content Remarks Main project processing workshop 1 Building area 800m, steel structure, single-story, 4m high, built-in cutting equipment and packaging equipment. Relying on the factory lessor's warehouse 2, the building area is 300m, brick-concrete structure, single-story, 6m high, office building area 100m, the brick-concrete structure public works water supply is provided by the municipal water pipe network, relying on the factory lessor's drainage project, no production wastewater is generated ; After domestic sewage is stabilized and harmlessly treated in septic tanks, it is regularly cleaned and transported into compost, which is used for top dressing of surrounding farmland and is not discharged outside. The heating is connected. The factory building of this project has no heating measures in winter. The refrigeration production workshop uses fans to cool down in summer, and the office uses split air conditioners. Refrigeration electricity is provided by the municipal power grid. Already connected with environmental protection projects. Domestic sewage adopts exhaust gas collection hood, spray dust removal device and bag dust collector. The original septic tank was owned by the factory lessor. Sound insulation and shock absorption in temporary storage rooms for general industrial solid waste. 3. Product plan 1-2 Project product plan serial number Product name Production scale remarks Cement foam insulation board (3600t/a) Cement foam insulation board and supporting materials construction project 4. Material table 1-3 Main raw and auxiliary material consumption list serial number Raw material quantity unit remarks Bagged cement 3000 Hydrogen peroxide 200 Yellow cement 150 Fiber 10 kWh/a Physical and chemical properties of main raw and auxiliary materials: (1) Cement: powdery hydraulic inorganic cementitious material.
Add water and stir to form a slurry, which can harden in the air or in water with better effect and can firmly bond sand, stone and other materials together. Concrete made of cemented gravel not only has high strength after hardening, but also resists erosion by fresh or salt water. For a long time, it has been widely used as an important cementing material in civil construction, water conservancy, national defense and other projects. (2) Hydrogen peroxide: The chemical name is hydrogen peroxide, which is another type of hydrogen oxide besides water. The viscosity is slightly higher than water and the chemical properties are unstable. Generally stored in the form of 30% or 60% aqueous solution. Hydrogen peroxide has strong oxidizing properties and is weakly acidic. The chemical formula of hydrogen peroxide is H2O2. Pure hydrogen peroxide is a light blue viscous liquid that can be mixed with water in any proportion. It is a strong oxidizing agent. The aqueous solution, commonly known as hydrogen peroxide, is a colorless and transparent liquid. Hydrogen peroxide is relatively stable in acidic and neutral media, but easily decomposes in alkaline media. It decomposes faster under light and heating conditions, decomposes into water and oxygen, and produces bubbles. This project utilizes the foaming effect of hydrogen peroxide. It uses hydrogen peroxide to decompose into water and oxygen under natural conditions, especially when there are many impurities. Oxygen acts as a foaming agent. (3) Polyester fiber: Polyester fiber is mainly made of polyethylene terephthalate. The morphological characteristics and surface properties of polyester fiber are melt spinning, and the cross-section is circular. The surface is very smooth, so that when the fibers slide relative to each other, the contact area is small and the friction coefficient is high. Oil must be added during the spinning process to control the dynamic and static friction coefficients of the fiber and the conductive properties of the fiber. In order to improve the spinnability of the fiber, the fiber needs to be properly crimped. Special-shaped spinnerets can also be used to produce special-shaped or hollow fibers of various shapes to improve the appearance and fabric style of polyester fibers.Adhesion between polyester surface and rubber
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