CN106890842A - A kind of method that integrated treatment is carried out to building waste material - Google Patents

Abstract

The invention belongs to the technical field of construction waste treatment, especially a method for comprehensive treatment of construction waste materials, which solves the problems of complex treatment process, low treatment efficiency, high treatment cost and low comprehensive utilization rate of construction waste in the prior art , the method for comprehensively processing construction waste materials includes the following steps: selecting a processing method for construction waste; judging whether the construction waste needs to be disinfected; separating impurities in the construction waste, and crushing the separated construction waste, Obtain primary crushed materials; further crush the primary crushed materials into pulverized materials; sieve the pulverized materials and classify to obtain recycled building materials, and use washing machines to clean and remove impurities. The invention has the advantages of simple operation, high processing efficiency, low processing cost, and a comprehensive utilization rate of over 98.5%. The obtained recycled building materials can be used to make building products such as recycled bricks, recycled concrete, recycled mortar, etc., and are worthy of popularization.

Description

A method for comprehensive treatment of construction waste materials

technical field

The invention relates to the technical field of construction waste treatment, in particular to a method for comprehensively processing construction waste materials.

Background technique

Construction waste refers to the discharged materials that are useless or unnecessary to the building itself during the construction, maintenance, demolition and decoration of buildings and structures. Construction waste is mostly solid waste, mainly including: muck, scattered mortar and concrete, broken metal, bamboo wood, discarded decoration materials, various packaging materials and other wastes. With the acceleration of industrialization and urbanization, the construction industry is also developing rapidly at the same time, and the accompanying construction waste is increasing. my country is the country with the largest amount of new construction in the world, with 2 billion new construction areas per year, consuming 53% of the world. of cement, 48% of iron ore, and 47% of coal. The amount of construction waste has accounted for 30% to 40% of the total urban waste, and the utilization rate of comprehensive treatment is less than 4%, which is equivalent to 5 times of domestic waste every year. Construction waste needs to be dealt with urgently. The vast majority of construction waste is transported to the suburbs or villages by the construction unit without any treatment, and is stacked in the open air or landfilled, which consumes a lot of construction funds such as land acquisition fees, garbage removal and transportation fees, and at the same time, the waste scattered in the process of clearing, transporting and stacking And dust, dust flying and other problems have caused serious environmental pollution. At present, the main treatment method of construction waste in my country is to bury it underground. The simple burial treatment not only takes up a large amount of land area, reduces the soil quality, but also seriously affects the air quality and pollutes water resources; the stacking of construction waste It seriously damages the city appearance and deteriorates the sanitation of the urban environment. Due to the complex composition of construction waste, it is easy to collapse during the stacking process, and there are certain safety hazards. Therefore, the disposal of construction waste is a problem faced by the whole world. Some developed countries have successful experience in the reuse of construction waste and have done a lot of basic research work. In recent years, with the attention and emphasis of government departments on the utilization of construction resources, my country has also begun research on construction waste treatment and resource utilization technologies. For example: Patent Application No. 200510120898.7 discloses a comprehensive treatment method for construction waste, which processes construction waste generated in buildings, house decoration and road renovation through manual sorting, crushing, crushing, grading and other processes. The shortcomings of slow speed, incomplete sorting, and a large amount of labor are consumed, and the overall processing efficiency is low, and the processing limitations are large. It is not suitable for the processing of construction waste generated by hospitals, pharmaceutical factories, earthquakes and other processes; Patent Application No. 200610036156.0 Publication A comprehensive treatment method for construction waste is proposed. The construction waste is processed through crushing, sorting, cleaning, screening and other processes. The processing operation is complicated, and the processing cost and complexity of construction waste are high. In the prior art, the processing of construction waste still has problems such as complex processing process, low processing efficiency, high processing cost, and low comprehensive utilization rate. Based on the above statements, the present invention proposes a method for comprehensively processing construction waste materials.

Contents of the invention

The purpose of the present invention is to solve the shortcomings in the prior art, and propose a method for comprehensive processing of construction waste materials, which solves the complex process of construction waste in the prior art, low processing efficiency, and high processing costs. High and low comprehensive utilization.

A method for comprehensively processing construction waste materials, comprising the following steps:

S1. According to the amount or location of construction waste, choose to transport the construction waste to the treatment site for treatment or treat it on-site;

S2. To determine whether disinfection treatment is required before construction waste treatment, put the construction waste to be disinfected into the spraying equipment, and mix Asarum, Bupleurum, Folium Isatidis, Artemisia argyi, Cyanorrhizae, The mixed infusion of Zanthoxylum bungeanum and Prunella vulgaris is mixed with 75% ethanol solution to prepare disinfectant for spray disinfection;

S3. Use the intelligent sorting machine to separate the impurities in the construction waste, and recycle the separated impurities separately. Use the feeder to add the de-impurity construction waste into the jaw crusher. After fully crushing, the primary crushed material is obtained. ;

S4, using a stone crusher to further crush the preliminary crushed material into crushed material;

S5. Use a grading and screening machine to sieve the pulverized materials to obtain fine powder, fine aggregate and coarse aggregate, and use a washing machine to clean and remove impurities respectively to obtain recycled building materials.

Preferably, in the step S1, according to the amount or location of the construction waste, the construction waste is selected to be transported to the processing site for processing or on-site processing. Specifically, it refers to: for construction waste with a small amount of construction waste or located in a place with a high crowd density, Choose to transport to the treatment site by car for treatment; for construction waste with a large amount of construction waste or located in places with low crowd density, you can choose to dispose of it on site.

Preferably, the on-site processing in step S1 specifically refers to on-site recovery processing using a mobile crushing station and a mobile brick making machine.

Preferably, the construction waste to be disinfected in the step S2 includes construction waste from hospitals, construction waste from virus research institutes, construction waste from microbiology research institutes, construction waste from earthquake collapses and construction waste from abnormal collapses.

Preferably, the preparation method of the mixed infusion in the step S2 is as follows: S1, 10-15 parts of Herba Asarum, 22-28 parts of Bupleurum, 18-24 parts of Folium Folium, 6-10 parts of Artemisia argyi and 12 parts of Prunella vulgaris Add ~18 parts to the Chinese medicine extraction tank, add water 7 to 8.8 times the total amount of the above medicinal materials, soak for 20 to 40 minutes, boil and keep warm for 14 to 19 minutes, and filter to obtain medicinal liquid A; S2, add medicinal liquid A Ethanol until the alcohol content rate is 38-48%, stir and mix evenly at a speed of 420-500r/min, then let it stand for 16-24h, separate and obtain the extract B, and recover the separated ethanol; S3. Add 22 to 32 parts and 18 to 22 parts of Zanthoxylum bungeanum into the volatile oil extraction tank, add water 10 to 15 times the total amount of fenugreek and Zanthoxylum bungeanum, keep boiling for 5 to 9 hours, and extract volatile oil C; S4, extract B and volatile oil C Add it into a high-speed mixing tank, stir and mix evenly to obtain a mixed infusion.

Preferably, the impurities in step S3 include metal materials, plastics, wood materials and glass materials.

Preferably, the metal material can be returned to the furnace for production and reuse; the plastic can be crushed and recycled as raw materials for production; the wood material can be reused as composite boards or crushed as fuel; the glass material can be melted at high temperature for production raw material.

Preferably, the particle size of the primary crushed material in the step S3 is 40-100mm.

Preferably, the particle size of the pulverized material in the step S4 is 0.1-10 mm.

Preferably, in the step S5, the particle size of the fine powder is greater than or equal to 0.1 mm and less than 1 mm; the particle size of the fine aggregate is 1-4 mm; the particle size of the coarse aggregate is greater than 4 mm and less than or equal to 10 mm.

A method for comprehensively processing construction waste materials proposed by the present invention effectively solves the problems of complex processing of construction waste in the prior art, low processing efficiency, high processing cost, and low comprehensive utilization rate. The present invention is beneficial The effects are as follows: 1. According to the amount or location of construction waste, reasonably choose the treatment method of construction waste, effectively reduce the transportation cost of a large amount of construction waste, and avoid the impact of construction waste treatment on people's living environment; 2. Analyze the construction waste The nature of the garbage, and selective treatment of construction waste, effectively controlling the amount of disinfectant used, avoiding the waste of disinfectant and the harm of excessive use of disinfectant; 3. The preparation and use of traditional Chinese medicine disinfectant, compared with traditional chemical Disinfectant, with a wide range of sterilization, thorough disinfection effect, and a fragrant smell, will not cause any harm to the human body and the environment; 4. Use an intelligent sorter to separate impurities in construction waste, effectively improving the separation rate of impurities and the thoroughness of separation, reducing the amount of labor used; 5. After the construction waste is crushed, pulverized, screened and washed to obtain the final recycled building materials; 6. One-time washing after screening , can effectively save water, compared with the cleaning, screening, re-washing in the prior art, and finally recycle the water resources, it has the advantages of simple operation, high efficiency and low cost. The method for comprehensively processing construction waste materials proposed by the present invention has simple operation, high processing efficiency, low processing cost, and a comprehensive utilization rate of over 98.5%, and the metal materials in the construction waste separated by the present invention can be returned to the furnace for production and reuse , plastics can be crushed and recycled as raw materials for production, wood materials can be made into composite boards and reused or crushed as fuel, glass materials can be melted at high temperature and used as raw materials for production, and the recycled building materials finally obtained after treatment in the present invention can be used to make recycled bricks , recycled concrete, recycled mortar and other construction products, the resulting recycled products have light specific gravity and good water permeability, which can be widely used and are worth promoting.

Description of drawings

Figure 1 is a flowchart of the comprehensive treatment of construction waste materials.

detailed description

The present invention will be further explained below in conjunction with specific embodiments.

Embodiment one

A kind of method that the present invention proposes carries out comprehensive treatment to construction waste material, comprises the following steps:

S1. According to the amount or location of construction waste, choose to transport the construction waste to the treatment site for treatment or to process it locally. For construction waste with a small amount of construction waste, choose to transport it to the treatment site for treatment. For construction waste with a large amount, choose to transport it to the treatment site for treatment. Construction waste can be recycled and processed on site by using mobile crushing station and mobile brick making machine;

S2. Determine whether disinfection treatment is required before construction waste treatment, and put hospital construction waste, virus research construction waste, microbiology research construction waste, earthquake collapse construction waste and abnormal collapse construction waste into the spraying equipment, According to the mass ratio of 1:6.5, mix the mixed infusions of Asarum, Bupleurum, Folium Folium, Artemisia argyi, Lemongrass, Zanthoxylum bungeanum, and Prunella vulgaris with 75% ethanol solution to prepare a disinfectant for spray disinfection. The preparation method is: S1, add 12 parts of Asarum, 25 parts of Bupleurum, 20 parts of Daqingye, 8 parts of Artemisia argyi and 16 parts of Prunella vulgaris into a traditional Chinese medicine extraction tank, add water 8.3 times the total amount of the above medicinal materials, and soak for 30 minutes Finally, boil and decoct with heat preservation for 15 minutes, and filter to obtain medicinal solution A; S2, add medicinal solution A to ethanol until the alcohol content rate is 42%, stir and mix evenly at a speed of 435r/min, let it stand for 18 hours, and separate and obtain immersion Paste B, and recover the separated ethanol; S3, add 25 parts of fennel and 19 parts of Zanthoxylum bungeanum to the volatile oil extraction tank, add water 12 times the total amount of fennel and Zanthoxylum bungeanum, keep boiling for 7 hours, and extract volatile oil C; S4 1. Add extract B and volatile oil C to a high-speed mixing tank, stir and mix evenly to obtain a mixed extract;

S3. Use the intelligent sorting machine to separate the metal materials, plastics, wood materials and glass materials in the construction waste, and recycle the separated metal materials, plastics, wood materials and glass materials respectively, and return the metal materials to the furnace for production and reuse. Plastics are crushed and recycled as production raw materials, wood materials are used to make composite boards for reuse or crushed as fuel, glass materials are melted at high temperature and used as production raw materials, and construction waste after removal of impurities is added to the jaw crusher by a feeder , after fully crushing, the primary crushed material with a particle size of 40-100mm is obtained;

S4. Using a stone crusher to further crush the primary crushed material into crushed materials with a particle size of 0.1-10 mm;

S5. Use a grading and screening machine to sieve the pulverized material, and classify to obtain fine powder with a particle size greater than or equal to 0.1 mm and less than 1 mm, fine aggregate with a particle size of 1 to 4 mm, and coarse aggregate with a particle size greater than 4 mm and less than or equal to 10 mm. Aggregate, and use a washing machine to wash and remove impurities separately to obtain recycled building materials.

Embodiment two

A kind of method that the present invention proposes carries out comprehensive treatment to construction waste material, comprises the following steps:

S1. According to the amount or location of construction waste, choose to transport the construction waste to the treatment site for treatment or treat it on-site. The construction waste in places with low crowd density can be recycled on-site by using mobile crushing stations and mobile brick making machines;

S2. Determine whether disinfection treatment is required before construction waste treatment, and put hospital construction waste, virus research construction waste, microbiology research construction waste, earthquake collapse construction waste and abnormal collapse construction waste into the spraying equipment, According to the mass ratio of 1:5.8, mix the mixed infusions of Asarum, Bupleurum, Folium Folium, Artemisia argyi, Cyanorrhizae, Zanthoxylum bungeanum, and Prunella vulgaris with 75% ethanol solution to prepare a disinfectant for spray disinfection. The preparation method is: S1, add 15 parts of Asarum, 24 parts of Bupleurum, 21 parts of Daqingye, 9 parts of Artemisia argyi and 13 parts of Prunella vulgaris into a traditional Chinese medicine extraction tank, add water 7.8 times the total amount of the above medicinal materials, and soak for 35 minutes Finally, boil and decoct with heat preservation for 17 minutes, and filter to obtain medicinal solution A; S2, add medicinal solution A to ethanol until the alcohol content rate is 40.5%, stir and mix evenly at a speed of 470r/min, let it stand for 20 hours, and separate and obtain immersion Paste B, and recover the separated ethanol; S3, add 28 parts of fenugreek and 20 parts of Zanthoxylum bungeanum to the volatile oil extraction tank, add water 15 times the total amount of fenugreek and Zanthoxylum bungeanum, keep boiling for 8 hours, and extract volatile oil C; S4 1. Add extract B and volatile oil C to a high-speed mixing tank, stir and mix evenly to obtain a mixed extract;

S3. Use the intelligent sorting machine to separate the metal materials, plastics, wood materials and glass materials in the construction waste, and recycle the separated metal materials, plastics, wood materials and glass materials respectively, and return the metal materials to the furnace for production and reuse. Plastics are crushed and recycled as production raw materials, wood materials are used to make composite boards for reuse or crushed as fuel, glass materials are melted at high temperature and used as production raw materials, and construction waste after removal of impurities is added to the jaw crusher by a feeder , after fully crushing, the primary crushed material with a particle size of 40-100mm is obtained;

S4. Using a stone crusher to further crush the primary crushed material into crushed materials with a particle size of 0.1-10 mm;

S5. Use a grading and screening machine to sieve the pulverized material, and classify to obtain fine powder with a particle size greater than or equal to 0.1 mm and less than 1 mm, fine aggregate with a particle size of 1 to 4 mm, and coarse aggregate with a particle size greater than 4 mm and less than or equal to 10 mm. Aggregate, and use a washing machine to wash and remove impurities separately to obtain recycled building materials.

Statistically calculate the comprehensive utilization rate of the construction waste material in the embodiment of the present invention one and two, draw following result: Example Embodiment one Embodiment two Comprehensive utilization rate (%) 99.1 98.7

The method for comprehensively processing construction waste materials proposed by the invention has the advantages of simple operation, high processing efficiency, low processing cost, and a comprehensive utilization rate of over 98.5%.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (10)

1. A method for comprehensively processing construction waste materials, is characterized in that, comprises the following steps: S1. According to the amount or location of construction waste, choose to transport the construction waste to the treatment site for treatment or treat it on-site; S2. To determine whether disinfection treatment is required before construction waste treatment, put the construction waste to be disinfected into the spraying equipment, and mix Asarum, Bupleurum, Folium Isatidis, Artemisia argyi, Cyanorrhizae, The mixed infusion of Zanthoxylum bungeanum and Prunella vulgaris is mixed with 75% ethanol solution to prepare disinfectant for spray disinfection; S3. Use the intelligent sorting machine to separate the impurities in the construction waste, and recycle the separated impurities separately. Use the feeder to add the de-impurity construction waste into the jaw crusher. After fully crushing, the primary crushed material is obtained. ; S4, using a stone crusher to further crush the preliminary crushed material into crushed material; S5. Use a grading and screening machine to sieve the pulverized materials to obtain fine powder, fine aggregate and coarse aggregate, and use a washing machine to clean and remove impurities respectively to obtain recycled building materials. 2. A method for comprehensively processing construction waste materials according to claim 1, characterized in that, in the step S1, according to the quantity or location of construction waste, select respectively to transport the construction waste to a processing site for processing or Local treatment specifically refers to: For construction waste with a small amount of construction waste or located in a place with a high crowd density, choose to transport it to the treatment site for treatment; for construction waste with a large amount of construction waste or located in a place with a low crowd density, you can Select Process in place. 3. A method for comprehensively processing construction waste materials according to claim 1, characterized in that, the on-site processing in the step S1 specifically refers to on-site recycling using a mobile crushing station and a mobile brick making machine deal with. 4. A kind of method that construction waste material is carried out comprehensive treatment according to claim 1, is characterized in that, the construction waste that needs disinfection in described step S2 comprises hospital construction waste, virus research institute construction waste, microbiological research institute Construction waste, earthquake collapse construction waste and abnormal collapse construction waste. 5. A method for comprehensively treating construction waste materials according to claim 1, characterized in that, the preparation method of the mixed infusion in the step S2 is as follows: S1, 10-15 parts of Asarum, Bupleuri Add 22 to 28 parts, 18 to 24 parts of Daqingye, 6 to 10 parts of Artemisia argyi and 12 to 18 parts of Prunella vulgaris into the traditional Chinese medicine extraction tank, add water 7 to 8.8 times the total amount of the above medicinal materials, soak for 20 to 40 minutes, Boil and decoct with heat preservation for 14-19 minutes, and filter to obtain medicinal liquid A; S2, add ethanol to medicinal liquid A until the alcohol content rate is 38-48%, stir and mix evenly at a speed of 420-500r/min, and let stand for 16 ～24h, separate and obtain extract B, and recover the separated ethanol; S3, add 22 to 32 parts of fenugreek and 18 to 22 parts of Chinese prickly ash into the volatile oil extraction tank, add 10 to 15 times the total amount of fennel and Chinese prickly ash Keep the water in a boiling state for 5-9 hours, extract the volatile oil C; S4, add the extract B and the volatile oil C into a high-speed stirring tank, stir and mix evenly to obtain a mixed infusion. 6. A method for comprehensively treating construction waste materials according to claim 1, characterized in that the impurities in step S3 include metal materials, plastics, wood materials and glass materials. 7. A method for comprehensively processing construction waste materials according to claim 6, characterized in that, the metal materials can be returned to the furnace for production and reuse; the plastics can be pulverized and recycled as raw materials for production; the wood materials The composite board can be reused or crushed to be used as fuel; the glass material can be melted at high temperature and used as raw material for production. 8. A method for comprehensively processing construction waste materials according to claim 1, characterized in that the particle size of the primary crushed material in the step S3 is 40-100 mm. 9. A method for comprehensively treating construction waste materials according to claim 1, characterized in that the particle size of the pulverized material in the step S4 is 0.1-10 mm. 10. A method for comprehensively treating construction waste materials according to claim 1, characterized in that the particle diameter of the fine powder is greater than or equal to 0.1mm and less than 1mm in the step S5; the particle diameter of the fine aggregate 1-4mm; the particle size of coarse aggregate is greater than 4mm and less than or equal to 10mm.