CN109482627B - Construction waste treatment line and treatment method - Google Patents
Construction waste treatment line and treatment method Download PDFInfo
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- CN109482627B CN109482627B CN201910011024.XA CN201910011024A CN109482627B CN 109482627 B CN109482627 B CN 109482627B CN 201910011024 A CN201910011024 A CN 201910011024A CN 109482627 B CN109482627 B CN 109482627B
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- 238000010276 construction Methods 0.000 title claims abstract description 31
- 239000002699 waste material Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000012535 impurity Substances 0.000 claims abstract description 67
- 239000000463 material Substances 0.000 claims abstract description 57
- 230000007704 transition Effects 0.000 claims abstract description 23
- 238000000926 separation method Methods 0.000 claims abstract description 16
- 230000008569 process Effects 0.000 claims abstract description 11
- 238000012216 screening Methods 0.000 claims abstract description 7
- 238000001179 sorption measurement Methods 0.000 claims abstract description 4
- 239000010813 municipal solid waste Substances 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 3
- 238000007873 sieving Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 44
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 239000002689 soil Substances 0.000 abstract description 7
- 238000007664 blowing Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 30
- 229910052742 iron Inorganic materials 0.000 description 15
- 230000002457 bidirectional effect Effects 0.000 description 13
- 230000009467 reduction Effects 0.000 description 10
- 239000004615 ingredient Substances 0.000 description 8
- 239000002994 raw material Substances 0.000 description 8
- 239000004576 sand Substances 0.000 description 7
- 230000001629 suppression Effects 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000011449 brick Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000005188 flotation Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000010954 inorganic particle Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- 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
- Y02W30/58—Construction or demolition [C&D] waste
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Food Science & Technology (AREA)
- Processing Of Solid Wastes (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention provides a construction waste treatment line and a treatment method, wherein the construction waste treatment line comprises a feeding device, a primary crushing device, a primary vibrating screen, a positive pressure winnowing impurity removing device, a manual pick-up device, a transition bin, a secondary crushing device and a negative pressure winnowing impurity removing device which are arranged from front to back along the treatment flow direction, and all the devices are connected through a conveying device. According to the invention, four impurity removal processes of residue soil screening, positive pressure air separation, manual picking and negative pressure separation are sequentially carried out, the positive pressure air separation is used for blowing off impurities in the large material before secondary crushing after primary crushing, the negative pressure separation technology is applied to impurity removal of the regenerated finished material after secondary crushing, fine and thin impurities in the regenerated finished material are removed by adsorption, the impurity content of the regenerated finished material is reduced to the greatest extent, and the quality of regenerated aggregate is ensured; by arranging the transition bin between the primary crushing device and the secondary crushing device, the production process is simplified to the greatest extent, and the production operation cost is reduced; the dust emission and noise completely reach the standards.
Description
Technical Field
The invention relates to the technical field of construction waste treatment, in particular to a construction waste treatment line and a construction waste treatment method.
Background
The construction waste mainly refers to reinforced concrete blocks, brick blocks and the like generated by house removal, road maintenance and the like in the urban construction process; with the continuous acceleration of the urban process, the generation and discharge amount of building rubbish in cities is rapidly increasing. People enjoy urban civilization and suffer from the trouble caused by urban garbage. According to preliminary statistics, the amount of the building rubbish generated and discharged by the construction is more than 1 hundred million tons every year in China, and the amount of the building rubbish generated by the building decoration, removal and construction industry reaches hundreds of hundred million tons. How to dispose and utilize more and more construction waste has become an important issue for various levels of governments and construction waste units.
At present, the construction waste treatment industry in China has a certain technology, wood, plastic, steel bars and the like are picked out and reused after construction waste is treated, and the rest concrete and bricks and tiles are crushed, screened and cleaned to be used as construction aggregate and sand for being used as recycled products such as concrete or baking-free bricks.
However, the existing construction waste treatment technology has three outstanding problems:
firstly, a water washing flotation impurity removal process is adopted, so that not only is the yield limited, but also sewage generated in the flotation process causes secondary pollution and needs to be treated again;
secondly, a non-water washing flotation mode is adopted, basically, only a simple blowing-off and manual picking-up process for two or three impurity removal processes is adopted, the process of blowing off impurities is simple, the blown air is large, very large dust emission can be caused, particularly, under the condition of facing more powder and fine impurities, the recycled components in the regenerated finished product are easily blown off, and the recycling rate is reduced; the blowing wind is small, which can cause the problems of uncleanness in construction waste sundries treatment, mixed recycled aggregate components, poor quality, narrow application range of recycled coarse and fine aggregates, few types of recycled products and the like;
thirdly, no comprehensive and effective environmental protection measures are generally available in the building garbage treatment market at present, and only a few simple dust collectors on a production line are needed, so that dust in construction processes such as truck unloading, forklift loading, belt transferring, dregs blanking and finished product stacking in an open place are basically discharged freely; meanwhile, no effective control measure is provided for noise, so that the dust is large in construction site, the noise exceeds standard, and the environment is poor.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the construction waste treatment line and the treatment method which can reduce the impurity content of regenerated finished products, ensure the quality of regenerated aggregates, simplify the production process, reduce the production operation cost and completely reach the standards of dust emission and noise.
The invention adopts the following technical scheme:
a construction waste treatment line comprises a feeding device, a primary crushing device, a primary vibrating screen, a positive pressure winnowing impurity removing device, a manual pick-up device, a transition bin, a secondary crushing device and a negative pressure winnowing impurity removing device which are arranged from front to back along the treatment flow direction, wherein the devices are connected through a conveying device.
Further, the transition bin is provided with an independent feeding door, and the discharging of the transition bin is connected to the secondary crushing device through the conveying device.
Further, the primary crushing device and the secondary crushing device are respectively provided with independent noise reduction rooms.
Further, a pre-separation device is arranged in front of the feeding device, and the pre-separation device is provided with a dust suppression fog gun.
Further, a primary iron removing device is arranged behind the primary crushing device, a secondary iron removing device is arranged behind the secondary crushing device, and the primary iron removing device and the secondary iron removing device are respectively arranged on the conveying devices for discharging of the primary crushing device and the secondary crushing device.
Further, at least one level of vibrating screen is arranged in front of and behind the negative pressure winnowing impurity removing device, and the vibrating screen at the front end of the negative pressure winnowing impurity removing device is arranged behind the secondary iron removing device.
Further, the negative pressure winnowing impurity removing device is arranged on a vibrating screen arranged at the front end of the negative pressure winnowing impurity removing device.
Further, a humidifying system for humidifying the reclaimed sand is arranged at the rear end of the vibrating screen behind the negative pressure winnowing impurity removing device, and the discharge end of the humidifying system is connected to a finished product bin or a proportioning bin.
Further, the feeding device, the crushing devices at all levels, the vibrating screen at all levels, the impurity removing device at all levels, the conveying device, the finished product bin and the proportioning bin are correspondingly provided with dust removing devices.
The construction waste treatment method comprises the following steps from front to back:
(1) after pre-sorting the materials, conveying the materials to a primary crushing device through a feeding device for primary crushing;
(2) after primary crushing, conveying the crushed materials to a primary vibrating screen to screen out dregs;
(3) conveying the slag to a positive pressure winnowing impurity removing device for positive pressure winnowing impurity removing after the slag is removed by screening;
(4) the materials subjected to positive pressure winnowing and impurity removal are conveyed to a manual picking device for manual picking;
(5) the materials picked up manually are conveyed to a transition bin, and the materials in the transition bin are conveyed to a secondary crushing device for secondary crushing after being screened;
(6) sieving the secondarily crushed materials, and then carrying out negative pressure adsorption separation and impurity removal on fine, thin and light impurities in the materials by a negative pressure winnowing impurity removal device;
(7) and conveying the negative pressure winnowing and impurity removal to a humidifying system to stir and humidify the materials, and conveying the materials to a finished product bin or a proportioning bin.
As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages:
firstly, sequentially performing four impurity removal processes of residue soil screening, positive pressure air separation, manual pickup and negative pressure separation by arranging a primary crushing device, a primary vibrating screen, a positive pressure air separation impurity removal device, a manual pickup device, a secondary crushing device and a negative pressure air separation impurity removal device in front and back; the positive pressure winnowing is used for blowing off sundries in the large material after primary crushing and before secondary crushing, so that dust is less, and blown away useful materials are less; the negative pressure separation technology is applied to the impurity removal of the regenerated product material after secondary crushing, overcomes the defects of 'dust rising and material waste caused by positive pressure air blowing and uncleanness in small air removal' due to negative pressure adsorption, can adsorb and remove fine and thin impurities such as wood dust, paper sheets, fibers and the like in the regenerated product material, reduces the impurity content of the regenerated product material to the greatest extent, ensures the quality of regenerated aggregate, and greatly expands the application range of the regenerated aggregate;
secondly, a transition bin is arranged between the primary crushing device and the secondary crushing device, so that production lines in front of and behind the transition bin can run completely and independently, raw stone meeting the specification and proper regeneration raw materials can directly enter the secondary crushing device from the transition bin, the production process is simplified to the greatest extent, and the production operation cost is reduced;
thirdly, the whole production line is provided with different environmental protection facilities according to different working condition properties, and modes of dust suppression, dust removal, stirring and humidification, sound insulation and noise reduction and the like are respectively adopted, so that the problems of large dust, large noise and large environmental influence of the operation of the existing treatment equipment are solved, the whole line operation is environment-friendly, and the dust emission and the noise completely reach the standard.
Drawings
FIG. 1 is a schematic view of a construction waste disposal line according to an embodiment of the present invention;
fig. 2 is a flowchart of a construction waste treatment method according to an embodiment of the present invention.
In the figure: 1. a pre-sorting device, 2 a feeding device, 3 a primary crushing device, 4 a primary iron removing device, 5 a primary vibrating screen, 6 a positive pressure air separation impurity removing device, 7 a manual pick-up device, 8 a transition bin, 9 a secondary crushing device, 10 a primary iron removing device, 11 a secondary vibrating screen, 12 a tertiary vibrating screen, 13 a negative pressure air separation impurity removing device, 14 a four-stage vibrating screen, 15 a humidifying system, 16 a dust suppression gun, 17 a dual fluid dry fog dust reducing system, 18 a first belt conveyor, 19 a second belt conveyor, 20 a third belt conveyor, 21 a fourth belt conveyor, 22 a fifth belt conveyor, 23 a clinker bin, 24 a sixth belt conveyor, 25 a seventh belt conveyor, 26 an eighth belt conveyor, 27 a ninth belt conveyor, 28 a vibrating feeder, 29 a tenth belt conveyor, 30 an eleventh belt conveyor, 31 a twelfth belt conveyor, 32, thirteenth, 33, fourteenth, 34, fifteenth, 35, sixteenth, 36, first two-way, 37, seventeenth, 38, eighteenth, 39, first vertical lift, 40, first spreader, 41, settling tank, 42, nineteenth, 43, twenty-first, 44, twenty-first, 45, twenty-second, 46, twenty-third, 47, twenty-fourth, 48, twenty-fifth, 49, twenty-sixth, 50, second two-way, 51, twenty-seventh, 52, third two-way, 53, proportioning bin, 54, metering, 55, aggregate, 56, second vertical lift, 57, second spreader, 58, twenty-eighth, 59, third spreader, 60. the system comprises a noise reduction room of a primary crushing device, 61, a first bag type dust collector, 62, a second bag type dust collector, 63, a third bag type dust collector, 64, a noise reduction room of a secondary crushing device, 65, a fourth bag type dust collector, 66, a fifth bag type dust collector and 67, a sixth bag type dust collector.
Detailed Description
The invention is further described below by means of specific embodiments.
Referring to fig. 1 and 2, the construction waste treatment line comprises a pre-separation device 1, a feeding device 2, a primary crushing device 3, a primary iron removing device 4, a primary vibrating screen 5, a positive pressure winnowing impurity removing device 6, a manual pick-up device 7, a transition bin 8, a secondary crushing device 9, a secondary iron removing device 10, a secondary vibrating screen 11, a tertiary vibrating screen 12, a negative pressure winnowing impurity removing device 13, a quaternary vibrating screen 14, a humidifying system 15, a finished product bin and a proportioning bin which are sequentially arranged from front to back along the treatment flow direction, wherein the devices are connected through a conveying device. The primary iron removing device 4 and the secondary iron removing device 10 are respectively arranged on conveying devices for discharging of the primary crushing device 3 and the secondary crushing device 9; the negative pressure winnowing impurity removing device 13 is arranged on the three-stage vibrating screen 12 and is used for adsorbing and removing light impurities of regenerated finished products at the uppermost layer of the three-stage vibrating screen 12; the sundry outlets of the positive pressure winnowing and impurity removing device 6 and the negative pressure winnowing and impurity removing device 13 are connected with sundry conveying belts and are finally gathered together; the transition bin 8 is provided with an independent feeding door; the humidifying system 15 is connected to the finished product bin and the proportioning bin respectively through a bidirectional belt arranged at the discharge end.
The pre-sorting device 1 is a pre-sorting workshop; the feeding device 2 adopts a vibrating feeder; the conveying device adopts a belt conveyor or a lifter; the primary crushing device 3 adopts a jaw crusher, and the secondary crushing device 9 adopts a reaction crusher; the primary vibrating screen 5 adopts a heavy residue soil screen, the secondary vibrating screen 11 and the tertiary vibrating screen 12 adopt horizontal screening machines, and the quaternary vibrating screen 14 adopts a circular vibrating screen; the primary iron removing device 4 and the secondary iron removing device 10 are permanent magnetic iron removing devices.
The pre-sorting device 1 is used for piling and pre-sorting construction waste raw materials, and the pre-sorting device 1 is provided with a high-efficiency pre-wetting dust suppression fog gun 16; the feeding device 2, the finished product bin, the proportioning bin and the muck transporting and stacking are all provided with a double-fluid dry fog dust fall system 17; the primary crushing device 3, the secondary crushing device 9, the primary vibrating screen 5, the secondary vibrating screen 11, the tertiary vibrating screen 12, the quaternary vibrating screen 14, the positive pressure winnowing impurity removing device 6, the negative pressure winnowing impurity removing device 13 and the corresponding conveying devices are all connected with bag type pulse dust collectors.
The primary crushing device 3 and the secondary crushing device 9 are respectively provided with an independent noise reduction room, and corresponding hoisting maintenance devices are arranged in the noise reduction room. The primary crushing device 3, the secondary crushing device 9 and the corresponding feeding devices are all designed in a submerged manner and are below the ground level of the pre-sorting workshop 1.
Referring to fig. 1 and 2, the construction waste treatment method of the present invention comprises the following steps:
the construction waste raw materials are stacked in a raw material pre-sorting workshop 1, the raw materials are pre-sorted into large blocks of wood, large steel bars and large blocks of light sundries, the pre-sorted raw materials are fed into a feeding device 2 by a forklift, an outlet of the feeding device 2 is connected to an inlet of a primary crushing device 3, a discharge hole of the primary crushing device 3 is connected to a tail receiving hole of a first belt conveyor 18, a primary iron removing device 4 is arranged in the middle of the first belt conveyor 18, and a discharge hole at the head of the first belt conveyor 18 is connected to an inlet of a primary vibrating screen 5; the dregs discharged from the lower layer of the primary vibrating screen 5 fall onto a receiving hole at the tail part of the second belt conveyor 19, and the dregs are conveyed to a dregs bin 23 for piling through a third belt conveyor 20, a fourth belt conveyor 21 and a fifth belt conveyor 22 in sequence, wherein the fifth belt conveyor 22 is a bidirectional rotary belt, so that the full utilization of the piling space of the dregs bin 23 is ensured; the upper layer discharge of the primary vibrating screen 5 is connected with the tail material receiving port of the sixth belt conveyor 24, and the head material discharging port of the sixth belt conveyor 24 is connected with the material inlet of the positive pressure winnowing impurity removing device 6; after positive pressure winnowing, collecting light impurities in a seventh belt conveyor 25, transferring the light impurities to an eighth belt conveyor 26 by the seventh belt conveyor 25, connecting a discharge port at the head of the eighth belt conveyor 26 with a screening device with a function of separating organic impurities from inorganic particles, and finally, stacking the light organic impurities and the inorganic particles in an impurity bin separately; after positive pressure winnowing, relatively clean regenerated materials fall to a tail material receiving port of a ninth belt conveyor 27, a head material outlet of the ninth belt conveyor 27 is connected with a manual pickup device 7, the manual pickup device 7 further picks up materials containing sundries such as wood, steel bars and rubber, and the materials enter a transition bin 8, so that a treatment line before the transition bin 8 is a first-stage crushing screening line and can be started and stopped independently of a subsequent treatment line, and the transition bin 8 is provided with material level detection and monitoring so as to conveniently control the starting and stopping of the subsequent treatment line; meanwhile, the feeding door of the transition bin 8 can be opened, and raw materials and proper regenerated materials which accord with the particle size can directly enter the secondary crushing device 9 and the subsequent treatment line, so that the production treatment flow can be simplified, the energy conservation and emission reduction can be maximized, and the production can be scientifically arranged; the bottom of the transition bin 8 is connected with an inlet of a vibrating feeder 28, an outlet of the vibrating feeder 28 is connected with a secondary crushing device 9, a discharge hole of the secondary crushing device 9 is dropped at a tail receiving hole of a tenth belt conveyor 29, and materials are conveyed to a secondary vibrating screen 11 through the tenth belt conveyor 29 and an eleventh belt conveyor 30; the second-stage vibrating screen 11 is provided with three layers of screens of 31.5mm, 25mm and 5mm, and materials with the thickness of more than 31.5mm fall onto a twelfth belt conveyor 31, a discharge hole at the head of the twelfth belt conveyor 31 is connected with a receiving hole at the tail of a thirteenth belt conveyor 32, and the thirteenth belt conveyor 32 returns the materials to the second-stage crushing device 9; the material with the diameter of 25-31.5mm is selected to be recycled according to the requirement or enters the next working procedure, when the stable soil regenerated aggregate with the diameter of 0-31.5mm is produced, the material enters the next working procedure, and when the commercial mixed regenerated aggregate with the diameter of 5-25mm is produced, the material is recycled; the materials with the length of 5-25mm directly enter the next procedure, and the fourteenth belt conveyor 33 sends the materials which need to enter the next procedure to the three-stage vibrating screen 12; the regenerated sand with the thickness of 0-5mm is collected on a fifteenth belt conveyor 34 at the screen bottom, is conveyed to a humidifying system 15 through a sixteenth belt conveyor 35, is stirred and humidified and then is blanked into a first bidirectional belt conveyor 36, one end of the first bidirectional belt conveyor 36 is connected with a seventeenth belt conveyor 37, and the humidified regenerated sand is conveyed to a batching sand warehouse for stacking through the seventeenth belt conveyor 37; the other end of the first bidirectional belt conveyor 36 is connected with an eighteenth belt conveyor 38, a discharge hole at the head of the eighteenth belt conveyor 38 is connected with a first vertical lifter 39, an outlet of the first vertical lifter 39 is connected with a first spreader 40, and finally 0-5mm reclaimed sand is directly piled into a finished product No. 2 bin; the three-stage vibrating screen 12 is provided with a layer of 5mm screen, the upper part of the tail end of the three-stage vibrating screen 12 is provided with a negative pressure winnowing impurity removing device 13, the negative pressure winnowing impurity removing device 13 adsorbs and separates fine and thin impurities in materials, the finer and finer light impurities are settled down in a settling tank 41, the light impurities collected by a nineteenth belt conveyor 42 are conveyed to a twentieth belt conveyor 43, and a blanking port at the head of the twentieth belt conveyor 43 is connected with a receiving port at the tail of an eighth belt conveyor 26; the materials pass through the three-stage vibrating screen 12, the materials with the bottom layer of 0-5mm are collected on a twenty-first belt conveyor 44, a discharge port at the head of the twenty-first belt conveyor 44 is connected with a receiving port at the tail of a twenty-second belt conveyor 45, and a discharge port at the head of the twenty-second belt conveyor 45 is connected with a sixteenth belt conveyor 35; the materials pass through the three-stage vibrating screen 12, the materials with the upper layer of 5-25mm (or 31.5 mm) are collected on a twenty-third belt conveyor 46, and a blanking port at the head of the twenty-third belt conveyor 46 is connected with a feeding port of the four-stage vibrating screen 14; the four-stage vibrating screen 14 is provided with two layers of screens of 10mm and 25mm, when 5-25mm commercial mixed regenerated aggregate is produced, materials with the size of more than 25mm fall onto the twenty-fourth belt conveyor 47, a head blanking port of the twenty-fourth belt conveyor 47 is connected with a tail receiving position of the twenty-fifth belt conveyor 48, and a head blanking port of the twenty-fifth belt conveyor 48 is connected with a tail receiving position of the twelfth belt conveyor 31, so that the materials are fed to the secondary crushing device 9 for re-crushing. At this time, the ingredients of the 10-25mm grade are conveyed to the second bidirectional belt conveyor 50 by the twenty-sixth belt conveyor 49, and the conveying direction of the second bidirectional belt conveyor 50 is the ingredient 1# aggregate bin. The 5-10 mm-level ingredients are conveyed to a third bidirectional belt conveyor 52 by a twenty-seventh belt conveyor 51, and the conveying direction of the third bidirectional belt conveyor 52 is an ingredient 3# aggregate bin. When the stabilized soil regenerated aggregate with the size of 0-31.5mm is produced, the 10-31.5 mm-class ingredients are conveyed to the second bidirectional belt conveyor 50 by the twenty-sixth belt conveyor 49, and the conveying direction of the second bidirectional belt conveyor 50 is an ingredient 2# aggregate bin. 5-10 mm-level ingredients are conveyed to a third bidirectional belt conveyor 52 by a twenty-seventh belt conveyor 51, and the conveying direction of the third bidirectional belt conveyor 52 is an ingredient 4# aggregate bin; the metering belts 54 are arranged below the reclaimed sand bin and the four aggregate bins in the proportioning bin area 53, the blanking ports of the five metering belts 54 are all converged on the aggregate conveying belt 55, and the blanking port at the head of the aggregate conveying belt 55 is connected with the feeding port of the second vertical lifting machine 56. When 5-25mm commercial mixed regenerated aggregate is produced, the discharge port of the second vertical lifting machine 56 is connected with the inlet of the second distributing machine 57, and finally, 5-25mm commercial mixed regenerated aggregate is stacked in a finished product 3# bin; when the stabilized soil regenerated aggregate with the thickness of 0-31.5mm is produced, the discharge port of the second vertical lifting machine 55 is connected with the tail receiving port of the twenty-eighth belt conveyor 58, the head discharge port of the twenty-eighth belt conveyor 58 is connected with the inlet of the third distributing machine 59, and finally the stabilized soil regenerated aggregate with the thickness of 0-31.5mm is stacked in the finished product No. 1 bin.
The environment-friendly treatment line of the invention is as follows: the dust suppression fog gun 16 is arranged in the middle of the pre-sorting workshop, can spray and suppress dust in a rotating way, and covers the whole raw material pre-sorting workshop; the dry fog dust fall system 17 is arranged at the side of the noise reduction room 60 of the primary crushing device, and the dry fog dust fall system 17 is responsible for carrying out spray dust fall and humidification treatment on forklift feeding, slag conveying and stacking and finished product proportioning bin blanking; the noise reduction room 60 of the primary crushing device wraps the whole primary crushing device 3; on the production line, all material transfer points are provided with negative pressure bag type dust removing points, and a first bag type dust remover 61 is used for removing dust from a discharge hole of the primary crushing device 3; the second bag type dust collector 62 is used for removing dust at the joint of the primary vibrating screen 5, the positive pressure winnowing impurity removing device 6, the manual pick-up device 7 and the related belt conveyor; the third bag dust collector 63 is used for dust collection of the transition bin 8; the noise reduction room 64 of the secondary crushing device wraps the whole secondary crushing device 9; the fourth bag type dust collector 65 is used for dust collection at the joint of the second crushing device 9 and the related belt conveyor; the fifth bag type dust remover 66 is used for removing dust at the transition part of the secondary vibrating screen 11, the humidifying system 15 and the related belt conveyor; the sixth bag-type dust collector 67 is used for dust removal at the joint of the three-stage vibrating screen 12, the negative pressure winnowing impurity removing device 13, the sedimentation tank 41, the fourth vibrating screen 14 and the related belt conveyor.
The foregoing is merely one specific embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modification of the present invention by using the concept shall belong to the behavior of infringement of the protection scope of the present invention.
Claims (2)
1. The utility model provides a building rubbish disposal line which characterized in that: the device comprises a feeding device, a primary crushing device, a primary vibrating screen, a positive pressure winnowing impurity removing device, a manual pick-up device, a transition bin, a secondary crushing device and a negative pressure winnowing impurity removing device which are arranged from front to back along the process flow direction, wherein the devices are connected through a conveying device; the negative pressure winnowing impurity removing device is arranged on the three-stage vibrating screen and is used for absorbing and removing light impurities of the regenerated finished product material at the uppermost layer of the three-stage vibrating screen.
2. A construction waste treatment method is characterized in that: based on the construction waste treatment line as claimed in claim 1, the following procedures are included from front to back:
(1) after pre-sorting the materials, conveying the materials to a primary crushing device through a feeding device for primary crushing;
(2) after primary crushing, conveying the crushed materials to a primary vibrating screen to screen out dregs;
(3) conveying the slag to a positive pressure winnowing impurity removing device for positive pressure winnowing impurity removing after the slag is removed by screening;
(4) the materials subjected to positive pressure winnowing and impurity removal are conveyed to a manual picking device for manual picking;
(5) the materials picked up manually are conveyed to a transition bin, and the materials in the transition bin are conveyed to a secondary crushing device for secondary crushing after being screened;
(6) sieving the secondarily crushed materials, and then carrying out negative pressure adsorption separation and impurity removal on fine, thin and light impurities in the materials by a negative pressure winnowing impurity removal device;
(7) and conveying the negative pressure winnowing and impurity removal to a humidifying system to stir and humidify the materials, and conveying the materials to a finished product bin or a proportioning bin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910011024.XA CN109482627B (en) | 2019-01-07 | 2019-01-07 | Construction waste treatment line and treatment method |
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| CN109967494B (en) * | 2019-03-28 | 2020-05-26 | 宜兴华都琥珀环保机械制造有限公司 | Process method and system device for treating construction waste |
| CN110064486B (en) * | 2019-04-30 | 2021-03-02 | 福建南方路面机械股份有限公司 | Decoration garbage recycling process |
| CN111318548B (en) * | 2020-03-25 | 2022-02-11 | 江苏天楹环保能源成套设备有限公司 | Demolition building garbage sorting system and method |
| CN112275431A (en) * | 2020-11-16 | 2021-01-29 | 唐山冀东装备工程股份有限公司 | Mobile crushing production line, tent house and production method |
| CN112691930A (en) * | 2021-01-25 | 2021-04-23 | 盐城盛州禾润再生资源有限公司 | Construction waste regeneration circulation production system |
| CN112976281B (en) * | 2021-03-11 | 2022-10-11 | 北京都市绿源环保科技有限公司 | Method for batching by adopting directional grading distribution device |
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