CN111744941A - Decoration garbage disposal method - Google Patents
Decoration garbage disposal method Download PDFInfo
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- CN111744941A CN111744941A CN202010723140.7A CN202010723140A CN111744941A CN 111744941 A CN111744941 A CN 111744941A CN 202010723140 A CN202010723140 A CN 202010723140A CN 111744941 A CN111744941 A CN 111744941A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/78—Recycling of wood or furniture waste
Abstract
The invention relates to the technical field of decoration garbage treatment, in particular to a decoration garbage disposal method. The method for disposing decoration garbage comprises the following steps: pre-picking, coarse crushing, primary screening, primary sorting and impurity removing, magnetic separation, intermediate crushing, magnetic separation, secondary screening, dry coarse sorting and impurity removing, non-ferrous metal sorting, fine crushing, tertiary screening, quaternary screening and dry fine sorting and impurity removing. The invention relates to a disposal method of decoration garbage, which is designed by comprehensively analyzing the characteristics of decoration garbage raw materials, and has a disposal process for pertinently improving the resource utilization rate of the decoration garbage (reaching more than 85 percent) and reducing the impurity content of recycled aggregate (less than 0.2 percent, meeting the national standard requirement), so that the decoration garbage achieves the purposes of reduction, resource utilization and recycling. Through reasonable process design, the finally obtained recycled aggregate (the fine aggregate M, the block N and the block P) has wide application range, and natural resources are saved to a great extent.
Description
Technical Field
The invention relates to the technical field of decoration garbage treatment, in particular to a decoration garbage disposal method.
Background
With the rapid development of urbanization in China, the living comfort of people is continuously improved, the engineering construction is continuously accelerated, the decoration industry is rapidly developed, so that decoration garbage is increased at a remarkable speed, and a series of problems of resource waste and environmental pollution are caused.
The decoration garbage mainly refers to garbage generated in the decoration process of urban residences, is complex in composition type and mainly comprises waste concrete, bricks, tiles, waste wood, waste hardware, glass, wood, rubber, foam, large garbage and the like. The decoration garbage contains a certain amount of toxic and harmful substances, and because coloring pigments are widely used, the decoration garbage generally contains heavy metals such as lead, chromium, cadmium, mercury, arsenic and the like. Among them, materials such as volatile resins and plastics and various paints volatilize formaldehyde, volatile organic compounds, benzene, toluene, xylene, and the like. If the toxic and harmful substances are randomly stacked, the urban environmental sanitation is damaged, the urban and rural ecological landscape is affected, the surrounding surface water and underground water are seriously polluted by rain water washing and leaching, and the polluted soil is infiltrated into soil. And the powder is blown with the wind, so that the powder is easy to pollute the atmospheric environment and harm the life quality and the body health of surrounding residents.
Most of the decoration garbage treatment modes in China are that the decoration garbage is transported to the suburbs or villages without any treatment and is treated in an open-air stacking or simple landfill mode; or a transfer station for treating the decoration garbage is established and is only responsible for receiving recyclable parts in the decoration garbage, such as steel, waste wood, paper wrappage and the like. And the decoration garbage with complex other components can be only treated in a landfill mode.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The invention aims to provide a decoration garbage disposal method to solve the technical problem that complex decoration garbage cannot be comprehensively disposed in the prior art.
In order to achieve the above purpose of the present invention, the following technical solutions are adopted:
the method for disposing decoration garbage comprises the following steps:
pre-picking procedure: the device is used for picking out large sundries, hard concrete blocks with the size larger than 400-800 mm, plastic pipes with the size larger than 400-800 mm, wood and gypsum sundries from decoration garbage raw materials;
a coarse crushing procedure: crushing the decoration garbage after pre-picking treatment to obtain a block A with the particle size smaller than a, wherein a is more than or equal to 50mm and less than or equal to 200 mm;
a first-stage screening process: dividing the block A into a block B with the particle size larger than B, a block C with the particle size smaller than C and a block D with the particle size between B and C, wherein B is more than or equal to 50mm and less than or equal to 150mm, C is more than or equal to 5mm and less than or equal to 80mm, and B is more than C;
primary separation and impurity removal process: selecting light substances, landfill substances and metal impurities in the block B and the block D;
a magnetic separation procedure: carrying out magnetic separation on the materials treated in the sorting procedure, and separating and removing magnetic impurities;
a middle crushing procedure: crushing the material treated by the magnetic separation procedure to obtain a block E with the particle size smaller than E, wherein E is more than or equal to 20mm and less than or equal to 80 mm;
a magnetic separation procedure: magnetically separating the block E to remove magnetic substances;
a secondary screening process: dividing the block E treated in the magnetic separation procedure into a block F with the particle size larger than or equal to c and a block G with the particle size smaller than c;
a dry roughing impurity removal procedure: selecting light matter impurities in the block F;
non-ferrous metal sorting procedure: selecting the non-ferrous metals in the block F after the dry roughing impurity removal process treatment;
a fine crushing procedure: finely crushing the materials treated in the non-ferrous metal sorting procedure to obtain a block H with the particle size smaller than f, wherein f is more than or equal to 5mm and less than or equal to 50 mm;
and a third screening process: dividing the block H into light-material impurities K with the particle size larger than or equal to c and a block L with the particle size smaller than c;
a four-stage screening process: and dividing the block C, the block G and the block L into fine aggregate M with the particle size smaller than G, block N with the particle size larger than h and block P with the particle size between G and h, wherein G is more than or equal to 3 and less than or equal to 10mm, h is more than or equal to 5 and less than or equal to 30mm, and h is more than G.
In a preferred embodiment of the invention, the method further comprises a primary dry concentration and impurity removal process for separating the light impurities in the block P.
In a preferred embodiment of the present invention, the method further comprises a secondary dry concentration and impurity removal process for separating the light impurities in the block N.
In actual operation, dry-method fine-selection impurity-removal processes can be carried out through different fine-selection devices.
The invention relates to a disposal method of decoration garbage, which is designed by comprehensively analyzing the characteristics of decoration garbage raw materials, and has a disposal process for pertinently improving the resource utilization rate of the decoration garbage (reaching more than 85 percent) and reducing the impurity content of recycled aggregate (less than 0.2 percent, meeting the national standard requirement), so that the decoration garbage achieves the purposes of reduction, resource utilization and recycling. Through reasonable process design, the finally obtained recycled aggregate (the fine aggregate M, the block N and the block P) has wide application range, and natural resources are saved to a great extent.
In an embodiment of the present invention, the pre-picking process comprises: large sundries such as sofas, mattresses, furniture and the like, hard concrete blocks with the size of more than 400-800 mm, plastic pipes with the length of more than 400-800 mm, woods, rubbers, mantles, paint buckets, plasters and the like are picked out from the decoration garbage raw materials, and after pre-picking treatment, the treatment pressure of the subsequent process is reduced. The large hard concrete blocks can be mechanically crushed to a granularity range meeting the requirement of feeding.
In the specific embodiment of the invention, the decoration garbage after the pre-picking treatment is mechanically fed into a hopper of a chain plate conveyor and is conveyed to coarse crushing equipment adopted in a coarse crushing process by the chain plate conveyor.
In a specific embodiment of the invention, the primary sorting and impurity removing process is to sort out identifiable impurities such as light substances, landfill substances, metals and the like by adopting manual or intelligent sorting equipment.
Wherein, the light material sundries can be used for burning and the like after being packaged, and comprise paper, wood, fiber, plastic and the like; the landfill sundries are used for landfill treatment and the like, and comprise gypsum, glass wool, rock wool and the like; the metal impurities are used for recovery treatment and the like, and comprise various metals.
The intelligent sorting equipment adopts an intelligent garbage sorting ROBOT, and the model can be AI-WE ROBOT 1-10S-ZXZ. The principle of the intelligent garbage sorting robot is that an intelligent recognition system based on a depth visual space perception platform technology recognizes the form, the type and the position of main substances in garbage and calculates a grabbing strategy in real time through image information and a depth learning algorithm, and then the garbage is sorted through an intelligent gripper of a high-speed robot.
In a specific embodiment of the invention, the dry roughing impurity removal process is to remove light impurities in the block F by using dry roughing equipment (which is used by both vibration and wind power) so as to achieve the purpose of roughing impurity removal. Preferably, the light materials are separated using a vibratory air separation apparatus.
In a specific embodiment of the present invention, the non-ferrous metal sorting process uses an eddy current sorting apparatus to remove non-ferrous metals in the bulk F. By means of eddy current sorting, non-ferrous metals such as copper and aluminum are sorted out. The principle of non-ferrous metal sorting is that when a material containing non-ferrous metal passes through a sorting roller at a certain speed, eddy current is induced in the non-ferrous metal, the direction of a magnetic field generated by the eddy current is opposite to that of a magnetic field in a non-ferrous metal sorting magnetic roller, and the magnetic poles of the two magnetic fields are the same, so that non-ferrous metal copper and aluminum can be ejected out along the conveying direction due to the repulsive force of the magnetic field.
In a particular embodiment of the invention, the nonferrous metal comprises copper and aluminum.
In a specific embodiment of the present invention, the coarse crushing process is performed using a toothed roll crusher or a jaw crusher, the intermediate crushing process is performed using a hammer crusher or an impact crusher, and the fine crushing process is performed using an impact crusher. The blocks with the required particle size can be obtained through different crushing equipment according to the various crushing procedures, for example, in the middle crushing procedure, the rotating speed of a hammer crusher or a counterattack crusher is high and 600-800 r/min, the blocks are not easy to wind aiming at light substances, plastic pipe impurities and the like contained in decoration garbage raw materials, the crushing efficiency is high, and the adaptability is high. The impact crusher is adopted in the fine crushing process, so that on one hand, the light-material impurities with larger particle sizes can be basically removed in the primary separation and impurity removal process, the phenomenon of hammer head winding is reduced, and on the other hand, the situation that subsequent separation is difficult due to the over-crushing condition of various impurities is also avoided.
In a specific embodiment of the present invention, the primary screening process, the secondary screening process, and the tertiary screening process are performed using a drum screen. Preferably, the four-stage screening process adopts a double-layer relaxation screen. The double-layer flip-flow screen has high screening efficiency on finer materials, and materials with the undersize of less than g can be directly sold as aggregates; and respectively conveying the blocks with the particle size between g and h and the blocks with the particle size larger than h on the sieve to a corresponding dry-method fine-selection impurity-removal process for further impurity removal.
In the specific implementation mode of the invention, a high-precision separation device is adopted to carry out dry-method fine separation and impurity removal on the block P with the grain diameter between g and h; and (3) carrying out dry-method fine selection and impurity removal on the block N with the particle size larger than h by adopting composite sorting equipment.
The high-precision separation equipment is equipment for removing light substances by utilizing the combined action of vibration, classification and wind power, and is more refined than a dry rough separation and impurity removal mode;
the combined sorting equipment is one equipment for sorting heavy matter and light matter with the specific weight difference of matter.
Compared with the prior art, the invention has the beneficial effects that:
(1) the method for disposing the decoration garbage follows the characteristics of decoration garbage raw materials, the recycling rate of the disposed decoration garbage reaches more than 85 percent, and the aims of reduction and recycling of the decoration garbage are fulfilled;
(2) the invention can produce the recycled aggregate with different grain diameters according to the market demand, and the recycled aggregate is widely applied to the aspects of building materials, municipal administration and the like, thereby saving natural resources to a great extent.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention.
Fig. 1 is a flowchart of a decoration garbage disposal method according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings and the detailed description, but those skilled in the art will understand that the following described embodiments are some, not all, of the embodiments of the present invention, and are only used for illustrating the present invention, and should not be construed as limiting the scope of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
Fig. 1 is a flowchart of a decoration garbage disposal method according to an embodiment of the present invention. As shown in fig. 1, the method for disposing decoration garbage of the present invention includes the following steps:
(1) pre-picking procedure: large sundries such as sofas, mattresses, furniture and the like, hard concrete blocks with the size of more than 400-800 mm, plastic pipes with the size of more than 400-800 mm, woods, rubbers, mantles, paint buckets, plasters and the like are picked out from the decoration garbage raw materials so as to reduce the pressure of the subsequent process. The larger hard concrete block needs to be mechanically crushed to a proper granularity and then fed.
Specifically, the transport vechicle transports fitment rubbish to the raw materials place, picks the debris class that the process of picking in advance in the adoption man-machine mode that combines to unsuitable entering the processing line in the fitment rubbish raw materials and picks out, then adopts machinery to carry out the material loading, transports the equipment of raw materials to the coarse crushing process with certain speed (0.1 ~ 0.5m/s) by the drag chain conveyer (having reduced the impact force of debris to the area). And (5) adopting a chain slat conveyor to transport the materials after the manual pre-picking procedure.
(2) A coarse crushing procedure: crushing the decoration garbage treated by the pre-picking procedure to obtain a block A with the particle size smaller than a, wherein a is more than or equal to 50mm and less than or equal to 200 mm;
specifically, conveying the decoration garbage obtained in the step (1) after the pre-picking procedure treatment to crushing equipment by using a chain plate conveyor, and crushing to obtain a block A meeting the particle size requirement; the crushing equipment can adopt a toothed roller crusher or a jaw crusher and the like, and can be properly selected according to the condition of the decoration garbage incoming materials so as to reduce the blocking of sundries or reinforcing steel bars and reduce the maintenance difficulty of the equipment.
(3) A first-stage screening process: dividing the block A into a block B with the particle size larger than B, a block C with the particle size smaller than C and a block D with the particle size between B and C, wherein B is more than or equal to 50mm and less than or equal to 150mm, C is more than or equal to 5mm and less than or equal to 80mm, and B is more than C;
specifically, the block A obtained in the step (2) is discharged by crushing equipment and then conveyed to an equipment drum sieve used in a first-stage screening process by a chain plate conveyor, the drum sieve is designed by analyzing the characteristic that decoration garbage raw materials contain more impurities and are not easy to wind screen holes of the drum sieve, two sections of screen holes of the drum sieve are D1 and D2(15 is larger than or equal to D1 and smaller than or equal to 100mm and 20 is larger than or equal to D2 and smaller than or equal to 120mm), the screen holes are in a circular punching mode, a feeding material is divided into three grain grades of materials, namely B (D2 is smaller than or equal to B), B (between B and C) (not smaller than D1 and not larger than D2) and C (C is not larger than D1), wherein the block B with the grain size larger than B on the sieve and the grain size between B and C and the block C with the grain size smaller than C are.
(4) Primary separation and impurity removal process: sorting out light substances, landfill impurities and metal impurities in the block B and the block D for separation or recovery and the like;
specifically, the primary separation and impurity removal process adopts manual or intelligent separation equipment to perform primary impurity removal. Wherein, the light material sundries can be used for burning and the like after being packaged, and comprise paper, wood, fiber, plastic and the like; the landfill sundries are used for secondary landfill treatment and the like, and comprise gypsum, glass wool, rock wool and the like; the metal impurities are used for recovery treatment and the like, and comprise various metals.
The intelligent sorting equipment is an intelligent garbage sorting ROBOT with the model of AI-WE ROBOT 1-10S-ZXZ. The intelligent garbage sorting robot is an intelligent recognition system based on a depth visual space perception platform technology, recognizes the form, the type and the position of main substances in garbage and calculates a grabbing strategy in real time through image information and a depth learning algorithm, and then sorts the garbage through an intelligent gripper of a high-speed robot.
(5) A magnetic separation procedure: carrying out magnetic separation on the materials treated in the primary separation and impurity removal process, and separating and removing magnetic impurities so as to avoid influencing the subsequent crushing efficiency;
specifically, a magnetic separation device is arranged in the primary separation impurity removal area, a suspension type iron remover is arranged on each conveyor, magnetic iron substances in the materials are removed, and the materials are cleared by workers at regular time, so that the influence on the crushing device is avoided, and the crushing efficiency is reduced.
(6) A middle crushing procedure: crushing the material treated by the magnetic separation procedure to obtain a block E with the particle size smaller than E, wherein E is more than or equal to 20mm and less than or equal to 80 mm;
specifically, the material after the magnetic separation procedure is transferred to crushing equipment in a middle crushing procedure by conveying equipment, and a block E meeting the particle size requirement is obtained after crushing; the middle crushing process can adopt a hammer crusher or a counterattack crusher, the rotating speed of the two devices is high (600-800 r/min), the winding of light-material impurities, plastic-pipe impurities and the like contained in the raw materials is not easy to cause, the crushing efficiency is high, and the adaptability to the middle crushing stage is high.
(7) A magnetic separation procedure: carrying out magnetic separation on the block E obtained by the intermediate crushing process, and separating and removing magnetic impurities;
specifically, the decoration rubbish block E after the broken process is transported by the conveyer in the well garrulous process, set up directly over the conveyer and can sort out and regularly clear up the iron material that has magnetism in the block E.
(8) A secondary screening process: dividing the block E treated in the magnetic separation procedure into a block F with the particle size larger than or equal to c and a block G with the particle size smaller than c;
specifically, the block E treated in the magnetic separation procedure in the step (7) is conveyed to a secondary screening procedure by conveying equipment, the sieve holes are c (c is more than or equal to 5mm and less than or equal to 80mm), the block F with the particle size larger than or equal to c on the discharging sieve enters a dry rough separation impurity removal procedure through a chute, and the block G with the particle size smaller than c is conveyed to a fourth-stage screening procedure.
(9) A dry roughing impurity removal procedure: selecting light matter impurities in the block F to achieve the purpose of rough selection and impurity removal;
the dry roughing impurity removal process is to remove light impurities in the block F through dry roughing equipment (which is used by vibration and wind power) so as to achieve the purpose of roughing impurity removal. And separating the light substances by utilizing a vibration winnowing device.
Specifically, the block F with the particle size larger than or equal to c obtained through secondary screening process is subjected to dry roughing impurity removal, vibration air separation equipment (ZL201510566340.5) is used for air separation impurity removal, heavy substances and light substances are separated under the action of vibration and wind force, light substances (plastics, papers, cloths and the like) with the particle size of 15-80 mm and air-entrapping block substances are separated, and the light substances are conveyed to a light substance collection warehouse through conveying equipment.
(10) Non-ferrous metal sorting procedure: separating nonferrous metal (copper and aluminum) nails, door handles, furniture hinges, various nonferrous metal wires and the like from the block F treated by the dry roughing impurity removal process;
specifically, the nonferrous metal sorting process adopts eddy current sorting equipment to remove the nonferrous metal in the block F. By means of eddy current sorting, non-ferrous metals such as copper and aluminum are sorted out. The principle of non-ferrous metal sorting is that when a material containing non-ferrous metal passes through a sorting roller at a certain speed, eddy current is induced in the non-ferrous metal, the direction of a magnetic field generated by the eddy current is opposite to that of a magnetic field in a non-ferrous metal sorting magnetic roller, and the magnetic poles of the two magnetic fields are the same, so that non-ferrous metal copper and aluminum can be ejected out along the conveying direction due to the repulsive force of the magnetic field.
(11) A fine crushing procedure: crushing the material treated in the non-ferrous metal separation procedure to obtain a block H with the particle size smaller than f, wherein f is more than or equal to 5mm and less than or equal to 50 mm;
specifically, the material after the non-ferrous metal sorting process is transferred to crushing equipment in a fine crushing process by a conveyor, and a block H meeting the particle size requirement is obtained by crushing; the fine crusher adopts a counterattack crusher, on one hand, because light substances with larger particle sizes are basically removed, the phenomenon of winding the hammer head is reduced; on the other hand, the condition of over-crushing of materials is avoided, and the condition that various impurities are difficult to separate subsequently after being over-crushed is also avoided.
(12) And a third screening process: dividing the block H into light-material impurities K with the particle size larger than or equal to c and a block L with the particle size smaller than c;
specifically, the block H treated in the fine crushing step (11) is conveyed to a drum screen in a three-stage screening step through conveying equipment, the particle size of undersize materials can be well controlled by the drum screen, large blocks which cannot be crushed after fine crushing can only be sundries K of light materials or filling materials, so that oversize materials in the three-stage screening step can be directly conveyed to a light material warehouse, and undersize materials can be directly conveyed to a four-stage screening step together with undersize materials in the first-stage screening step and the second-stage screening step.
(13) A four-stage screening process: dividing the block C obtained in the first-stage screening procedure, the block G obtained in the second-stage screening procedure and the block L obtained in the third-stage screening procedure into fine aggregate M with the particle size smaller than G, block N with the particle size larger than h and block P with the particle size between G and h, wherein G is larger than or equal to 3 and smaller than or equal to 10mm, h is larger than or equal to 5 and smaller than or equal to 30mm, and h is larger than G;
specifically, the sieve used in the four-stage sieving procedure is in a double-layer relaxation sieve, the sieving efficiency for finer materials is high, and fine aggregates M with the undersize particle size smaller than g can be directly sold as aggregates; and respectively conveying the block N with the particle size larger than h and the block P with the particle size between g and h on the sieve to a corresponding fine separation process for further impurity removal.
(14) Dry-method selection and impurity removal: used for separating the light material impurities in the block P; and separating the light matter impurities in the block N;
specifically, light-material impurities in the block P are separated by adopting high-precision separation equipment (ZL201610632690.1), the impurity content in the treated aggregate is less than or equal to 0.2%, and the aggregate reaches the national standard. The principle of the device is as follows: heavy substances are separated from light substances through the cooperation of wind power downward blowing, upward suction and the aperture of the conveying plate;
in particular, a compound sorting device (ZL201821330912.5) is adopted for separating the light-weight impurities in the block N. The impurity content of the treated aggregate is less than or equal to 0.2 percent and reaches the national standard. The principle of the device is as follows: the separating sieve plate is driven by the vibrating motor to reciprocate in a certain stroke, the moving direction of the separating sieve plate is consistent with the inclination direction of the sieve plate, and the fan blows certain air quantity to the sieve plate. According to the characteristics of different densities and suspension speeds of the heavy material aggregates and the light material impurities, the heavy material aggregates and the light material impurities are separated by utilizing an inclined screen surface with certain movement characteristics and wind power penetrating through screen holes.
The decoration garbage disposal method has the following advantages:
(1) the process sequence and the equipment type selection of the disposal line both follow the characteristics of the decoration garbage raw materials, the recycling rate of the treated decoration garbage reaches more than 85 percent, and the aims of reduction and recycling of the decoration garbage are fulfilled.
(2) The disposal line can produce recycled aggregates with different particle sizes according to market demands, the impurity content of each processed aggregate is less than or equal to 0.2 percent, the treated aggregate reaches the national standard of recycled aggregate utilization, can be widely applied to the fields of concrete product preparation, recycled road material preparation production lines and the like, and has various resource utilization ways.
(3) The primary separation and impurity removal is to separate large blocks of light substances, landfill substances and sundries which are not suitable for subsequent treatment in a manual or intelligent separation device mode, so that the failure rate of the device is reduced, and the separation efficiency of the device is improved. The intelligent sorting equipment can save labor and improve the resource value.
(4) All the devices adopted in the treatment process are in a totally-enclosed design, and each blanking point is provided with a cloth bag dust removal mode, so that the unorganized emission of dust is reduced.
(5) The coarse crushing adopts a toothed roll crusher or a jaw crusher and the like, and has the characteristics of large crushing ratio, low noise, small vibration, small excessive crushing amount, small dust, low energy consumption, small occupied area, simple and convenient maintenance, low power consumption and difficult material blockage.
(6) The medium crushing adopts a hammer crusher or a counterattack crusher and the like, has the characteristic of high rotating speed, can prevent light substances or plastic sundries from being wound, and reduces the maintenance cost of equipment.
(7) The rotary screen is used as main grading equipment, the screen plate is of a punching type, the drainage plate is arranged in the screen plate, materials rotate forwards on the inner side of the rotary screen according to a certain horizontal angle, the winding or blockage of impurities on the screen is greatly reduced by the aid of the operation track, and the granularity of the materials below the screen is well controlled.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The method for disposing decoration garbage is characterized by comprising the following steps:
pre-picking procedure: the device is used for picking out large sundries, hard concrete blocks with the size larger than 400-800 mm, plastic pipes with the size larger than 400-800 mm, wood and gypsum sundries from decoration garbage raw materials;
a coarse crushing procedure: crushing the decoration garbage after pre-picking treatment to obtain a block A with the particle size smaller than a, wherein a is more than or equal to 50mm and less than or equal to 200 mm;
a first-stage screening process: dividing the block A into a block B with the particle size larger than B, a block C with the particle size smaller than C and a block D with the particle size between B and C, wherein B is more than or equal to 50mm and less than or equal to 150mm, C is more than or equal to 5mm and less than or equal to 80mm, and B is more than C;
primary separation and impurity removal process: selecting light substances, landfill substances and metal impurities in the block B and the block D;
a magnetic separation procedure: carrying out magnetic separation on the materials treated in the primary separation and impurity removal process, and separating and removing magnetic impurities;
a middle crushing procedure: crushing the material treated by the magnetic separation procedure to obtain a block E with the particle size smaller than E, wherein E is more than or equal to 20mm and less than or equal to 80 mm;
a magnetic separation procedure: magnetically separating the block E to remove magnetic substances;
a secondary screening process: dividing the block E treated in the magnetic separation procedure into a block F with the particle size larger than or equal to c and a block G with the particle size smaller than c;
a dry roughing impurity removal procedure: selecting light matter impurities in the block F;
non-ferrous metal sorting procedure: selecting the non-ferrous metals in the block F after the dry roughing impurity removal process treatment;
a fine crushing procedure: finely crushing the materials treated in the non-ferrous metal sorting procedure to obtain a block H with the particle size smaller than f, wherein f is more than or equal to 5mm and less than or equal to 50 mm;
and a third screening process: dividing the block H into light-material impurities K with the particle size larger than or equal to c and a block L with the particle size smaller than c;
a four-stage screening process: and dividing the block C, the block G and the block L into fine aggregate M with the particle size smaller than G, block N with the particle size larger than h and block P with the particle size between G and h, wherein G is more than or equal to 3 and less than or equal to 10mm, h is more than or equal to 5 and less than or equal to 30mm, and h is more than G.
2. The finishing waste disposal method according to claim 1, further comprising a primary dry concentration and impurity removal process for separating light materials and impurities in the block P.
3. A finishing waste disposal method according to claim 1, further comprising a secondary dry concentration and impurity removal process for separating light matter impurities in said block N.
4. The finishing waste disposal method according to claim 1, wherein the primary sorting and impurity removing process is performed by using an artificial or intelligent sorting device.
5. The method of claim 4, wherein the intelligent sorting device is an intelligent garbage sorting robot.
6. The finishing waste disposal method according to claim 1, wherein the dry roughing impurity removal process is a vibration winnowing process;
preferably, a vibration sorting device is adopted to perform the dry rough sorting and impurity removing process.
7. The method of disposing decoration waste as set forth in claim 1, wherein the nonferrous metal sorting process includes eddy current sorting;
optionally, the nonferrous metal comprises copper and aluminum.
8. A finishing waste disposal method according to claim 1, wherein said coarse crushing process is performed using a toothed roll crusher or a jaw crusher; performing the intermediate crushing process by using a hammer crusher or a reaction crusher; and carrying out the fine crushing process by using a back-impact crusher.
9. A finishing waste disposal method according to claim 1, wherein said primary screening process, said secondary screening process and said tertiary screening process are performed by using a drum screen.
10. The method of claim 1, wherein the fourth stage of screening is performed using a double layer relaxation screen.
Priority Applications (1)
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