Decoration garbage disposal method

Abstract

The treatment method of the decoration garbage is characterized by comprising the following steps of pretreatment, screening, impurity removal and secondary screening. By means of the method, light substances, metal substances, harmful substances and the like can be effectively sorted out from the decoration waste, and the remaining inorganic mixture generates recycled aggregate to be recycled.

Description

Technical Field

[0001] The invention belongs to the field of resource recycling and environmental protection of building solid waste and decoration garbage. Background Art

[0002] Decoration waste is a type of construction waste, which is mainly generated in residential areas, industrial and mining enterprises, commercial entities, public buildings, enterprises and institutions, and is basically concentrated in cities. With the continuous deepening of urbanization and the continuous improvement of people's living standards, the decoration industry is becoming more and more prosperous, and the proportion of decoration construction waste in construction waste is also increasing. Because the types of decoration materials are becoming more and more complex, decoration waste can hardly be simply used, so it is generally piled up in the open air without treatment, or covered with soil after being piled up, or landfilled in the suburbs. These treatment methods occupy a lot of land, are very likely to pollute the environment, and may also cause accidents.

[0003] Making full use of abandoned decoration waste is a good project to turn harm into benefit and waste into treasure. Using urban construction and decoration waste to make building materials is an effective way to treat waste harmlessly at one time. Compared with other waste treatment methods, the superiority of using urban construction and decoration waste to make building materials is more obvious. With a small amount of investment, this constantly generated and headache-inducing waste can be effectively treated, turning waste into treasure and benefiting the people. It not only meets the requirements of national green buildings, but also meets the national policy of waste resource utilization, harmlessness and reduction.

[0004] The research and development of building materials made from urban construction and renovation waste will not only produce obvious environmental and social benefits, but also bring considerable economic benefits. At present, with the development of urban construction, on the one hand, the sites available for urban construction and renovation waste are gradually decreasing; on the other hand, due to the increase in the amount of building materials used in cities, a large amount of land has been mined, causing damage to farmland. What is more serious is that most urban construction and renovation waste is piled up in the open air, which seriously pollutes the air and water sources.

[0005] At present, there is no complete and systematic classification of decoration waste at construction and decoration sites in my country. The domestic decoration waste resource disposal process generally includes crushing, magnetic separation, air separation, screening and other processes, which vary according to the type of construction waste and the demand for recycled products. There is no mature resource disposal process technology for mixed construction and decoration waste, and there are generally problems such as lack of systematic impurity removal methods, low processing efficiency, and unstable product quality. Summary of the invention

[0006] The purpose of the present invention is to develop a set of disposal devices to effectively separate light materials, metals, harmful substances, etc. from decoration waste according to the characteristics of decoration waste, and the remaining inorganic mixture is used to generate recycled aggregates. The sorted light materials, metals and other recyclable resources enter the downstream resource recycling link, the harmful substances are sent to the designated disposal point for disposal, and the recycled aggregates are used to prepare various recycled building materials products, so as to reduce the decoration waste, recycle it, and make it harmless.

[0007] The present invention adopts the following technical solution:

[0008] A method for disposing decoration waste, characterized in that a decoration waste disposal device is used to dispose the decoration waste, and the specific method comprises the following steps:

[0009] Step 1: Pre-process the decoration waste;

[0010] Step 2: Screening

[0011] The decoration waste pre-treated in step 1 is conveyed to a first screening device (2-1) for screening through a feeding device (1); the screened material is fed to a manual sorting table (4) and a second screening device (2-2);

[0012] Step 3: Remove impurities

[0013] Further removing impurities from the material obtained in step 2;

[0014] Step 4: Secondary screening

[0015] The material removed from step 3 is screened twice to obtain materials with four particle sizes, which are recovered separately.

[0016] The device comprises: a feeding device (1), a screening device, an air separation and impurity removal device, a manual sorting table (4), a crushing device (5), a magnetic separation device, a metal recovery device, an oversized material return device (8), an aggregate recovery device, a light material collection device and a non-ferrous metal recovery device (11);

[0017] The screening device comprises a first screening device (2-1), a second screening device (2-2), a third screening device (2-3) and a fourth screening device (2-4);

[0018] The wind separation and impurity removal device comprises a first wind separation and impurity removal device (3-1), a second wind separation and impurity removal device (3-2) and a third wind separation and impurity removal device (3-3);

[0019] The magnetic separation device comprises a first magnetic separation device (6-1), a second magnetic separation device (6-2), and a third magnetic separation device (6-3);

[0020] The metal recovery device comprises a first metal recovery device (7-1) and a second metal recovery device (7-2);

[0021] The aggregate recovery device comprises a fine aggregate recovery device (9-1), a medium aggregate recovery device (9-2) and a large aggregate recovery device (9-3);

[0022] The light matter collecting device comprises a first light matter collecting device (10-1) and a second light matter collecting device (10-2).

[0023] In step 2, the decoration waste pre-treated in step 1 is passed through a feeding device (1) into a first screening device (2-1) for screening, and screened to obtain undersize material and oversize material. The oversize material is sorted by a second magnetic separation device (6-2) and then transported to a manual sorting table (4); the undersize material is sorted by the first magnetic separation device (6-1) and then transported to a second screening device (2-2).

[0024] Step 3, the material transported to the second screening device (2-2) in the impurity removal is screened to obtain large-size oversize material, medium-size midsize material and small-size undersize material; the large-size oversize material and medium-size midsize material are removed by the first air separation and impurity removal device (3-1) and then enter the manual sorting table (4);

[0025] The small-size material under the screen enters the third screening device (2-3) for further screening, and the screened fine aggregate is transported to the fine aggregate finished product silo through the fine aggregate recovery device (9-1); the screened coarse material enters the second air separation and impurity removal device (3-2) for impurity removal, and the impurity-removed material enters the fourth screening device (2-4).

[0026] In step 4, the materials entering the manual sorting table (4) in step 2 and step 3 described in the secondary screening are manually sorted, and then enter the crushing device (5) for crushing. The crushed materials are transported to the fourth screening device (2-4) after metal sorting by the third magnetic separation device (6-3); the materials entering the fourth screening device (2-4) and the materials entering the fourth screening device (2-4) in step 3 are secondary screened into materials with four particle sizes, including super-sized materials on the screen, fine aggregates on the screen, medium aggregates on the screen, and large aggregates on the screen. The super-sized materials on the screen are returned to the manual sorting table (4) through the super-sized material returning device (8).

[0027] The fine aggregate of the screened material is transported to a fine aggregate finished product bin through a fine aggregate recovery device (9-1); the medium aggregate of the screened material is transported to a medium aggregate finished product bin through a medium aggregate recovery device (9-2); the large aggregate of the screened material enters a third air separation and impurity removal device (3-3) to further separate the impurities of the aggregate, and the separated light matter enters a light matter temporary storage bin through a second light matter collection device (10-2); after air separation, the material is transported to a large aggregate finished product bin through a large aggregate recovery device (9-3).

[0028] In step 2, the metal substances separated by the second magnetic separation device (6-2) in the above-sieve material enter the first metal recovery device (7-1); the metal substances separated by the first magnetic separation device (6-1) in the below-sieve material enter the first metal recovery device (7-1); the below-sieve material is a material with a particle size of 0-150 mm, and the above-sieve material is a material with a particle size of more than 150 mm.

[0029] In step three, the light materials sorted by the first air separation and impurity removal device (3-1) and the second air separation and impurity removal device (3-2) pass through the first light material collecting device (10-1) and enter the light material temporary storage bin.

[0030] In step four, the manually sorted non-ferrous metals enter the non-ferrous metal recovery device (11), and the manually sorted light materials pass through the first light material collection device (10-1) and enter the light material temporary storage bin; the metal materials sorted by the third magnetic separation device (6-3) pass through the second metal recovery device (7-2) and enter the metal recovery bin.

[0031] Beneficial effects:

[0032] The present invention takes the treatment process of "pre-treatment comprehensive sorting + preparation of aggregate recycled building materials + transportation and incineration of combustibles + metal recycling" as the main line, adheres to the treatment principle of "more screening and less breaking, selection as the main method" for decoration waste, adopts "wind selection + manual sorting + wind selection" gradient and multiple particle size hierarchical sorting and impurity removal processes, selects mature and advanced main equipment and dust removal equipment, meets the use requirements in terms of treatment capacity and efficiency, and fully meets environmental protection requirements in terms of noise, dust and sewage treatment.

[0033] This patent mainly recycles aggregate materials such as concrete, bricks and tiles in decoration waste, which accounts for about 50%-60% of the total amount, and is temporarily stored in the aggregate storage bin in the workshop for use in the recycled building materials production line; the sorted combustibles are compressed and sent out by a hook-arm truck for incineration; hazardous waste and electronic waste such as paint cans and batteries mixed in the decoration waste are stored separately after sorting, and regularly sent out to qualified treatment units for disposal; the sorted recyclables include metals (including iron products, non-ferrous metals, aluminum alloys, etc.), wood plastics and other recyclables, which can be recycled repeatedly. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0035] The present invention is further described below in conjunction with specific embodiments.

[0036] A method for disposing decoration waste, characterized in that a decoration waste disposal device is used to dispose the decoration waste, and the specific method comprises the following steps:

[0037] Step 1: Pre-process the decoration waste;

[0038] Step 2: Screening

[0039] The decoration waste pre-treated in step 1 is conveyed to a first screening device (2-1) for screening through a feeding device (1); the screened material is fed to a manual sorting table (4) and a second screening device (2-2);

[0040] Step 3: Remove impurities

[0041] Further removing impurities from the material obtained in step 2;

[0042] Step 4: Secondary screening

[0043] The material removed from step 3 is screened twice to obtain materials with four particle sizes, which are recovered separately.

[0044] The device comprises: a feeding device (1), a screening device, an air separation and impurity removal device, a manual sorting table (4), a crushing device (5), a magnetic separation device, a metal recovery device, an oversized material return device (8), an aggregate recovery device, a light material collection device and a non-ferrous metal recovery device (11);

[0045] The screening device comprises a first screening device (2-1), a second screening device (2-2), a third screening device (2-3) and a fourth screening device (2-4);

[0046] The wind separation and impurity removal device comprises a first wind separation and impurity removal device (3-1), a second wind separation and impurity removal device (3-2) and a third wind separation and impurity removal device (3-3);

[0047] The magnetic separation device comprises a first magnetic separation device (6-1), a second magnetic separation device (6-2), and a third magnetic separation device (6-3);

[0048] The metal recovery device comprises a first metal recovery device (7-1) and a second metal recovery device (7-2);

[0049] The aggregate recovery device comprises a fine aggregate recovery device (9-1), a medium aggregate recovery device (9-2) and a large aggregate recovery device (9-3);

[0050] The light matter collecting device comprises a first light matter collecting device (10-1) and a second light matter collecting device (10-2).

[0051] In step 2, the decoration waste pre-treated in step 1 is passed through a feeding device (1) into a first screening device (2-1) for screening, and screened to obtain undersize material and oversize material. The oversize material is sorted by a second magnetic separation device (6-2) and then transported to a manual sorting table (4); the undersize material is sorted by the first magnetic separation device (6-1) and then transported to a second screening device (2-2).

[0052] Step 3, the material transported to the second screening device (2-2) in the impurity removal is screened to obtain large-size oversize material, medium-size midsize material and small-size undersize material; the large-size oversize material and medium-size midsize material are removed by the first air separation and impurity removal device (3-1) and then enter the manual sorting table (4);

[0053] The small-size material under the screen enters the third screening device (2-3) for further screening, and the screened fine aggregate is transported to the fine aggregate finished product silo through the fine aggregate recovery device (9-1); the screened coarse material enters the second air separation and impurity removal device (3-2) for impurity removal, and the impurity-removed material enters the fourth screening device (2-4).

[0054] In step 4, the materials entering the manual sorting table (4) in step 2 and step 3 described in the secondary screening are manually sorted, and then enter the crushing device (5) for crushing. The crushed materials are transported to the fourth screening device (2-4) after metal sorting by the third magnetic separation device (6-3); the materials entering the fourth screening device (2-4) and the materials entering the fourth screening device (2-4) in step 3 are secondary screened into materials with four particle sizes, including super-sized materials on the screen, fine aggregates on the screen, medium aggregates on the screen, and large aggregates on the screen. The super-sized materials on the screen are returned to the manual sorting table (4) through the super-sized material returning device (8).

[0055] The fine aggregate of the screened material is transported to a fine aggregate finished product bin through a fine aggregate recovery device (9-1); the medium aggregate of the screened material is transported to a medium aggregate finished product bin through a medium aggregate recovery device (9-2); the large aggregate of the screened material enters a third air separation and impurity removal device (3-3) to further separate the impurities of the aggregate, and the separated light matter enters a light matter temporary storage bin through a second light matter collection device (10-2); after air separation, the material is transported to a large aggregate finished product bin through a large aggregate recovery device (9-3).

[0056] In step 2, the metal substances separated by the second magnetic separation device (6-2) in the above-sieve material enter the first metal recovery device (7-1); the metal substances separated by the first magnetic separation device (6-1) in the below-sieve material enter the first metal recovery device (7-1); the below-sieve material is a material with a particle size of 0-150 mm, and the above-sieve material is a material with a particle size of more than 150 mm.

[0057] In step three, the light materials sorted by the first air separation and impurity removal device (3-1) and the second air separation and impurity removal device (3-2) pass through the first light material collecting device (10-1) and enter the light material temporary storage bin.

[0058] In step four, the manually sorted non-ferrous metals enter the non-ferrous metal recovery device (11), and the manually sorted light materials pass through the first light material collection device (10-1) and enter the light material temporary storage bin; the metal materials sorted by the third magnetic separation device (6-3) pass through the second metal recovery device (7-2) and enter the metal recovery bin.

[0059] In step three, the large-size material on the sieve is the material with a particle size greater than 70mm, the medium-size material on the sieve is the material with a particle size of 30-70mm, and the small-size material under the sieve is the material with a particle size less than 30mm; the fine aggregate under the sieve is the aggregate with a particle size of 0-5mm; the coarse material is the material with a particle size of 5-30m.

[0060] The invention discloses a device for disposing decoration waste, characterized in that the device comprises: a feeding device (1), a screening device, an air separation and impurity removal device, a manual sorting table (4), a crushing device (5), a magnetic separation device, a metal recovery device, an oversized material return device (8), an aggregate recovery device, a light material collection device and a non-ferrous metal recovery device (11);

[0061] The screening device comprises a first screening device (2-1), a second screening device (2-2), a third screening device (2-3) and a fourth screening device (2-4);

[0062] The wind separation and impurity removal device comprises a first wind separation and impurity removal device (3-1), a second wind separation and impurity removal device (3-2) and a third wind separation and impurity removal device (3-3);

[0063] The magnetic separation device comprises a first magnetic separation device (6-1), a second magnetic separation device (6-2), and a third magnetic separation device (6-3);

[0064] The metal recovery device comprises a first metal recovery device (7-1) and a second metal recovery device (7-2);

[0065] The aggregate recovery device comprises a fine aggregate recovery device (9-1), a medium aggregate recovery device (9-2) and a large aggregate recovery device (9-3);

[0066] The light matter collecting device comprises a first light matter collecting device (10-1) and a second light matter collecting device (10-2).

[0067] The first screening device (2-1) comprises a first port, a second port and a third port; the first port of the first screening device (2-1) is connected to the feeding device (1); the second port of the first screening device (2-1) is connected to the second screening device (2-2) via a first magnetic separation device (6-1); and the third port of the first screening device (2-1) is connected to the manual sorting platform (4) via the second magnetic separation device (6-2).

[0068] The first magnetic separation device (6-1) and the second magnetic separation device (6-2) are connected to the first metal recovery device (7-1).

[0069] The second screening device (2-2) is connected to the third screening device (2-3); one end of the third screening device (2-3) is connected to the fine aggregate recovery device (9-1), and the other end of the third screening device (2-3) is connected to the fourth screening device (2-4) via the second air separation and impurity removal device (3-2);

[0070] The second screening device (2-2) is connected to the manual sorting platform (4) via the first wind separation and impurity removal device (3-1); the manual sorting platform (4) is respectively connected to the first light matter collection device (10-1), the non-ferrous metal recovery device (11) and the crushing device (5).

[0071] The first air separation and impurity removal device (3-1) and the second air separation and impurity removal device (3-2) are respectively connected to the first light matter collecting device (10-1).

[0072] The crushing device (5) is connected to the fourth screening device (2-4) via the third magnetic separation device (6-3); the fourth screening device (2-4) has a first port, a second port, a third port and a fourth port; the first port of the fourth screening device (2-4) is connected to the fine aggregate recovery device (9-1); the second port of the fourth screening device (2-4) is connected to the medium aggregate recovery device (9-2); the third port of the fourth screening device (2-4) is connected to the large aggregate recovery device (9-3); and the fourth port of the fourth screening device (2-4) is connected to the oversize material return device (8).

[0073] A third air separation and impurity removal device (3-3) is provided between the fourth screening device (2-4) and the large aggregate recovery device (9-3); the third air separation and impurity removal device (3-3) is connected to the second light matter collection device (10-2);

[0074] The third magnetic separation device (6-3) is connected to the second metal recovery device (7-2).

[0075] The decoration waste disposal device also has a dust recovery device (12).

[0076] The present invention adopts a modular setting and can have multiple variable modes, and the specific variable modes are:

[0077] 1. The fine aggregates screened by the third screening device (2-3) and the fourth screening device (2-4) are different in material components and can be stored separately according to usage;

[0078] 2. The oversize material return device (8) is provided with a reversible belt at the place where the returned material falls, so that the oversize material can be directly stored in the warehouse;

[0079] 3. Manual sorting station (4) sorts various types of lightweight materials, such as wood, rubber, plastic, etc.;

[0080] 4. A frequency conversion device is installed at the manual sorting station (4) to control the speed of the sorting station. At the same time, an alarm emergency stop device is installed to ensure the safety of the sorting personnel;

[0081] 5. The crushing particle size of the crushing device (5) can be adjusted according to the operating conditions and market demand;

[0082] 6. The type of material screened by the fourth screening device (2-4) can be adjusted according to the operating conditions and market demand;

[0083] 7. The third wind separation and impurity removal device (3-3) can be adjusted to a manual inspection sorting table according to investment conditions to reduce costs;

[0084] 8. According to the scale of investment, this device can be equipped with high-tech intelligent sorting devices such as eddy current sorting device, intelligent mechanical sorting robot and fully automatic intelligent sorting device to increase the intelligence of the device.

[0085] Under the conditions permitted by national and local policies and regulations, this device fully recycles and utilizes waste energy and treats raw material waste. Its effect is obvious, achieving energy conservation and emission reduction in waste treatment, and achieving the purpose of recycling resources and saving energy.

[0086] It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope limited by the appended claims of the application.

Claims

1. A method for disposing decoration waste, characterized in that: The decoration waste disposal device is used to treat the decoration waste, and the specific method includes the following steps: Step 1: Pre-process the decoration waste; Step 2: Screening The decoration waste pre-treated in step 1 is conveyed to a first screening device (2-1) for screening through a feeding device (1); the screened material is fed to a manual sorting table (4) and a second screening device (2-2); Step 3: Remove impurities Further removing impurities from the material obtained in step 2; Step 4: Secondary screening The material removed from step 3 is screened twice to obtain materials with four particle sizes, which are recovered separately.

2. A method for disposing decoration waste according to claim 1, characterized in that: The decoration waste disposal device comprises: a feeding device (1), a screening device, an air separation and impurity removal device, a manual sorting table (4), a crushing device (5), a magnetic separation device, a metal recovery device, an oversized material return device (8), an aggregate recovery device, a light material collection device and a non-ferrous metal recovery device (11); The screening device comprises a first screening device (2-1), a second screening device (2-2), a third screening device (2-3) and a fourth screening device (2-4); The wind separation and impurity removal device comprises a first wind separation and impurity removal device (3-1), a second wind separation and impurity removal device (3-2) and a third wind separation and impurity removal device (3-3); The magnetic separation device comprises a first magnetic separation device (6-1), a second magnetic separation device (6-2), and a third magnetic separation device (6-3); The metal recovery device comprises a first metal recovery device (7-1) and a second metal recovery device (7-2); The aggregate recovery device comprises a fine aggregate recovery device (9-1), a medium aggregate recovery device (9-2) and a large aggregate recovery device (9-3); The light matter collecting device comprises a first light matter collecting device (10-1) and a second light matter collecting device (10-2).

3. A method for disposing decoration waste as claimed in claim 2, characterized in that: In step 2, the decoration waste pre-treated in step 1 is passed through a feeding device (1) into a first screening device (2-1) for screening, and screened to obtain undersize material and oversize material. The oversize material is sorted by a second magnetic separation device (6-2) and then transported to a manual sorting table (4); the undersize material is sorted by the first magnetic separation device (6-1) and then transported to a second screening device (2-2).

4. A method for disposing decoration waste as claimed in claim 2, characterized in that: Step three, screening the material transported to the second screening device (2-2) to obtain large-size oversize material, medium-size midsize material and small-size undersize material; the large-size oversize material and medium-size midsize material are removed by the first air separation and impurity removal device (3-1) and then enter the manual sorting table (4); The small-size material under the screen enters the third screening device (2-3) for further screening, and the screened fine aggregate is transported to the fine aggregate finished product silo through the fine aggregate recovery device (9-1); the screened coarse material enters the second air separation and impurity removal device (3-2) for impurity removal, and the impurity-removed material enters the fourth screening device (2-4).

5. A method for disposing decoration waste as claimed in claim 2, characterized in that: Step 4, secondary screening, the materials entering the manual sorting table (4) in step 2 and step 3 are manually sorted, and then enter the crushing device (5) for crushing, and the crushed materials are transported to the fourth screening device (2-4) after metal sorting by the third magnetic separation device (6-3); the materials entering the fourth screening device (2-4) and the materials entering the fourth screening device (2-4) in step 3 are secondary screened into materials with four particle sizes, including super-sized materials on the screen, fine aggregates on the screen, medium aggregates on the screen, and large aggregates on the screen, and the super-sized materials on the screen are returned to the manual sorting table (4) through the super-sized material returning device (8).

6. A method for disposing decoration waste as claimed in claim 5, characterized in that: The fine aggregate of the screened material is transported to a fine aggregate finished product bin through a fine aggregate recovery device (9-1); the medium aggregate of the screened material is transported to a medium aggregate finished product bin through a medium aggregate recovery device (9-2); the large aggregate of the screened material enters a third air separation and impurity removal device (3-3) to further separate the impurities of the aggregate, and the separated light matter enters a light matter temporary storage bin through a second light matter collection device (10-2); after air separation, the material is transported to a large aggregate finished product bin through a large aggregate recovery device (9-3).

7. A method for disposing decoration waste as claimed in claim 3, characterized in that: In step 2, the metal substances separated by the second magnetic separation device (6-2) in the above-sieve material enter the first metal recovery device (7-1); the metal substances separated by the first magnetic separation device (6-1) in the below-sieve material enter the first metal recovery device (7-1); the below-sieve material is a material with a particle size of 0-150 mm, and the above-sieve material is a material with a particle size of more than 150 mm.

8. A method for disposing decoration waste as claimed in claim 4, characterized in that: In step three, the light materials sorted by the first air separation and impurity removal device (3-1) and the second air separation and impurity removal device (3-2) pass through the first light material collecting device (10-1) and enter the light material temporary storage bin.

9. A method for disposing decoration waste as claimed in claim 5, characterized in that: In step four, the manually sorted non-ferrous metals enter the non-ferrous metal recovery device (11), and the manually sorted light materials pass through the first light material collection device (10-1) and enter the light material temporary storage bin; the metal materials sorted by the third magnetic separation device (6-3) pass through the second metal recovery device (7-2) and enter the metal recovery bin.

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