CN104446077A - Separation method and separation system for waste concrete and rolling separator - Google Patents
Separation method and separation system for waste concrete and rolling separator Download PDFInfo
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- CN104446077A CN104446077A CN201410648143.3A CN201410648143A CN104446077A CN 104446077 A CN104446077 A CN 104446077A CN 201410648143 A CN201410648143 A CN 201410648143A CN 104446077 A CN104446077 A CN 104446077A
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- separation
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- 239000004567 concrete Substances 0.000 title claims abstract description 189
- 238000000926 separation method Methods 0.000 title claims abstract description 61
- 238000005096 rolling process Methods 0.000 title claims abstract description 40
- 239000002699 waste material Substances 0.000 title abstract description 9
- 239000002245 particle Substances 0.000 claims abstract description 140
- 239000012535 impurity Substances 0.000 claims abstract description 72
- 238000012216 screening Methods 0.000 claims abstract description 47
- 239000000843 powder Substances 0.000 claims abstract description 26
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000002441 reversible effect Effects 0.000 claims description 58
- 239000000463 material Substances 0.000 claims description 34
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 230000001105 regulatory effect Effects 0.000 claims description 13
- 238000011144 upstream manufacturing Methods 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 238000002203 pretreatment Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 238000005204 segregation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Classifications
-
- 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
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Crushing And Grinding (AREA)
Abstract
The invention discloses a waste concrete separation method, a rolling separator and a waste concrete separation system, wherein the separation method comprises the following steps: the method comprises the following steps: pretreating the waste concrete to remove impurities in the waste concrete and obtain concrete blocks; step two: breaking the concrete blocks into concrete particles; step three: rolling according to the particle size of the concrete particles to separate mortar and aggregate in the concrete particles from each other; step four: and D, screening the product obtained in the step three into powder, fine aggregate and coarse aggregate, and respectively collecting the powder, the fine aggregate and the coarse aggregate. According to the technical scheme, the grinding can be respectively carried out according to the particle size of the concrete particles, so that the coarse aggregate, the fine aggregate and the mortar powder in the waste concrete can be effectively separated. Through the technical scheme, the separation effect is good, the operation is easy, and the energy saving performance is good.
Description
Technical field
The present invention relates to concrete recycle, particularly, relate to the separation system of a kind of separation method of discarded concrete, roll-in separating machine and discarded concrete.
Background technology
The amount of the waste and old concrete that the whole world produces every year is very huge and in the trend that increases year by year.And at present, waste and old concrete mainly adopts the processing mode transporting countryside stacking or landfill to, not only take a large amount of soils, and cause environmental pollution, especially to the serious waste of resource.
In the regenerative use technology of discarded concrete, usually physical treatment is carried out to discarded concrete, and Segregation wherein is out reused.This has not only saved cost, and reduces discarded concrete pollution on the environment.
In the prior art, in order to make to be separated from each other between the aggregate in discarded concrete and mortar, usually first discarded concrete being broken into fritter, making mortar and coarse aggregate be separated from each other to a certain extent in the process, then screening obtains regeneration aggregate.
But this regeneration aggregate is not owing to being separated completely with mortar, therefore water-absorbent makes the concrete performance of preparation poor comparatively greatly, simultaneously often surface adhesion mortar outside in broken apart process, and interface produces a large amount of tiny cracks between mortar and coarse aggregate, make the regenerated aggregate concrete physical and mechanical property of preparation poor, strength grade is lower.
Summary of the invention
The object of this invention is to provide a kind of separation method of discarded concrete, this separation method can roll respectively according to the size of concrete particle and be separated.
To achieve these goals, the invention provides a kind of separation method of discarded concrete, wherein, this separation method comprises the following steps:
Step one: pre-treatment is carried out to discarded concrete, the impurity in removing discarded concrete also obtains concrete blocks;
Step 2: described concrete blocks is smashed into concrete particle;
Step 3: the size according to described concrete particle rolls respectively, is separated from each other to make the mortar in described concrete particle and aggregate;
Step 4: by the screening of the product of step 3 for powder, fine aggregate and coarse aggregate are also collected respectively.
Preferably, described step one comprises metallic impurity in artificial removing discarded concrete and light impurities.
Preferably, described step 2 also comprises the impurity in the described concrete particle of removing, sieve, and described concrete particle particle diameter being greater than predetermined size smashes again to the described concrete particle after removal of impurities.
Preferably, described step 3 comprises being sent in multiple different rolling device by described concrete particle respectively according to the value of the particle diameter of described concrete particle and rolls, multiple described rolling device is set with default squeeze respectively, when rolling device described in one of them detects the default squeeze value of the squeeze of described concrete particle being greater than to this rolling device, this concrete particle is transported to another and processes in the described rolling device of more Large stone by this rolling device.
Another object of the present invention is to provide a kind of roll-in separating machine, wherein, this roll-in separating machine comprises housing and is arranged on 2N roller in this housing, this 2N roller forms N number of roller pair, the turning axle of described roller is disposed adjacent in parallel to each other successively, the public tangent plane of each roller centering two rollers is along downward-sloping to the direction of 2N roller from the first roller, described first roller is provided with opening for feed on the described housing of top, the gap between described roller centering two rollers from described first roller to N roller to increasing gradually.
Preferably, the height of the turning axle of all rollers in described roll-in separating machine reduce gradually from the first roller to 2N roller and copline arrange, the radius size of all rollers is identical, the public tangent plane copline that roller described in each is right.
Preferably, the i-th roller pair and the i-th+1 roller between two rollers in gap and the i-th roller centering between gap equal, wherein, i=1,2 ..., N.
Preferably, described N number of roller is formed with discharge port on the described housing of below.
Preferably, described roller is to comprising reversible roller pair, this reversible roller is to the dynamometry roller comprising controller and be disposed adjacent successively from upstream to downstream and reversible roller, this dynamometry roller and this reversible roller can relatively rotate around respective turning axle respectively, and the linear velocity direction of opposite segments is tangentially downward between described dynamometry roller and described reversible roller
Described dynamometry roller can detect the squeeze that between described dynamometry roller and described reversible roller, material is subject to, and this squeeze is sent to described controller;
Described controller is for storing default squeeze, and described squeeze and described default squeeze are compared, when described squeeze is greater than described default squeeze, described controller controls described reversible roller reverse rotation and by the described roller pair of the mass transport between described dynamometry roller and described reversible roller to downstream.
Preferably, described roller is arranged on the roll adjustable pair in the right downstream of described reversible roller to also comprising, this roll adjustable is to comprising the stationary roll and movable roll that are disposed adjacent successively to downstream from upstream, this stationary roll and this movable roll can relatively rotate around respective turning axle respectively, and the linear velocity direction of described stationary roll and described movable roll opposite segments is tangentially downward
Described housing is also formed with chute, and the turning axle of described movable roll to be arranged in this chute and can to fix relative to described chute along described chute translation.
Preferably, spring part and adjustment part is also provided with in described chute, this adjustment part comprises interconnective fixed part and regulating rod, this regulating rod extends towards described movable roll side relative to this fixed part, described fixed part is fixedly installed in described chute, one end of described spring part is connected with the turning axle of described movable roll, and the other end is connected with described regulating rod, and described regulating rod can adjust relative to the extrusion of described fixed part.
The present invention also provides a kind of separation system of discarded concrete, and wherein, this separation system comprises the feeder, crushing mechanism, separation mechanism, screening mechanism and the collecting mechanism that connect successively, wherein,
Described feeder is used for described discarded concrete to be transported to described crushing mechanism;
Described crushing mechanism is used for described discarded concrete to smash into concrete particle;
Described separation mechanism is used for rolling respectively according to the size of described concrete particle, is separated from each other to make the mortar in described concrete particle and aggregate;
It is powder, fine aggregate and coarse aggregate that described screening mechanism is used for the screening of the product of described separation mechanism;
Described collection device is used for collecting described powder, fine aggregate and coarse aggregate respectively.
Preferably, described feeder comprises Bar strip type feeding machine, and discarded concrete is transported to described crushing mechanism by this Bar strip type feeding machine.
Preferably, described crushing mechanism comprises the impact breaker, tramp iron separator, separator for light impurities and the trommel screen that connect successively,
Described impact breaker is used for described discarded concrete to smash into described concrete particle;
Described concrete particle successively through tramp iron separator to remove metallic impurity, and separator for light impurities is to remove light impurities;
Described concrete particle after removal of impurities is through the screening of described trommel screen, the described concrete particle that particle diameter is less than or equal to the predetermined size of described trommel screen enters into described separation mechanism, and the described concrete particle that particle diameter is greater than the predetermined size of described trommel screen is sent back to described impact breaker.
Preferably, described separator for light impurities comprises material blanking tube and light impurities collecting chamber, be communicated with by communicating pipe between this light impurities collecting chamber with this material blanking tube, the top of described material blanking tube is provided with opening for feed, the bottom of described material blanking tube is provided with discharge port, material blanking tube between this opening for feed and discharge port is also provided with blast inlet, this blast inlet is corresponding with the connected entrance that this communicating pipe is communicated with described material blanking tube, described light impurities collecting chamber is also provided with air outlet, this air outlet is provided with filter screen.
Preferably, described separation mechanism comprises roll-in separating machine of the present invention.
Preferably, described screening mechanism comprises air sieve apparatus, this air sieve apparatus comprises air sieve apparatus housing and is arranged on the vibratory screening apparatus in this air sieve apparatus housing, this vibratory screening apparatus has a down dip from the adjustable side direction that the first side direction is relative, described air sieve apparatus housing above first side of described vibratory screening apparatus is provided with opening for feed, described air sieve apparatus housing around first side of described vibratory screening apparatus is also provided with blast inlet, described air sieve apparatus housing around the adjustable side of described vibratory screening apparatus is also provided with air outlet, described air sieve apparatus housing below described vibratory screening apparatus is provided with fine aggregate discharge port, powder discharge port and coarse aggregate discharge port.
Technical scheme of the present invention can roll respectively according to the size of concrete particle, thus the coarse aggregate in discarded concrete, fine aggregate can be enable effectively to be separated with mortar powder.By technique scheme, and this technical scheme not only separating effect is better, and easy handling and good energy saving property.
Other features and advantages of the present invention are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification sheets, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.In the accompanying drawings:
Fig. 1 is the separation method of discarded concrete according to the preferred embodiment of the present invention;
Fig. 2 is the schematic diagram of roll-in separating machine according to the preferred embodiment of the present invention;
Fig. 3 is the schematic diagram of separator for light impurities according to the preferred embodiment of the present invention;
Fig. 4 is the schematic diagram of air sieve apparatus according to the preferred embodiment of the present invention;
Fig. 5 is the schematic diagram of the separation system of discarded concrete according to the preferred embodiment of the present invention.
Description of reference numerals
1 housing; 2 dynamometry rollers; 3 reversible rollers; 4 stationary rolls; 5 movable roll; 6 chutes; 7 spring parts; 8 adjustment parts; 10 Bar strip type feeding machines; 20 impact breakers; 30 tramp iron separators; 40 separator for light impurities; 41 material blanking tubes; 42 light impurities collecting chambers; 50 trommel screens; 60 roll-in separating machines; 70 air sieve apparatus; 71 air sieve apparatus housings; 72 vibratory screening apparatuss; 73 opening for feeds; 74 blast inlets; 75 air outlets; 76 fine aggregate discharge ports; 77 powder discharge ports; 78 coarse aggregate discharge ports.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
In the present invention, when not doing contrary explanation, the noun of locality such as " upper and lower, left and right " of use typically refers to the orientation in a state of use such as device or mechanism, or understands by reference to the accompanying drawings; " upstream " refers to the direction that the structure camber that is obliquely installed is higher, the i.e. direction of the roller that the turning axle height of roller is higher, with the first roller for most upstream, " downstream " refers to the direction that the structure camber that is obliquely installed is lower, the i.e. direction of the roller that the turning axle height of roller is lower, with 2N roller for most downstream.
The invention provides a kind of separation method of discarded concrete, wherein, this separation method comprises the following steps:
Step one: pre-treatment is carried out to discarded concrete, the impurity in removing discarded concrete also obtains concrete blocks;
Step 2: described concrete blocks is smashed into concrete particle;
Step 3: the size according to described concrete particle rolls respectively, is separated from each other to make the mortar in described concrete particle and aggregate;
Step 4: by the screening of the product of step 3 for powder, fine aggregate and coarse aggregate are also collected respectively.
In the inventive solutions, in order to be separated discarded concrete, in step one, first pre-treatment is carried out to discarded concrete, wherein, described step one comprises metallic impurity in artificial removing discarded concrete and light impurities, namely manually metallic impurity in discarded concrete and light impurities is removed.These metallic impurity are often referred to reinforcing bar etc., and light impurities then refers to that timber or color density are less than concrete other materials.And discarded concrete can also be carried out broken simply in step one, the discarded concrete by bulk resolves into relatively little block.
Next in step 2, concrete blocks is smashed into concrete particle.The size of concrete particle herein will be far smaller than concrete blocks, usually adopts shredder assembly to smash concrete blocks.Normally, need in step 2 by the size controlling of concrete particle within certain scope, so that step 3 carries out rolling separation, will describe in detail to this hereinafter.
The concrete particle produced in step 2 comprises aggregate and is wrapped in the mortar outside aggregate.In step 3, by rolling concrete particle, thus the mortar outside aggregate is milled to get off to powder, and the size according to concrete particle in step 3 rolls respectively, thus make while rolling concrete particle, aggregate to be separated from each other according to size.Like this, not only aggregate and mortar powder can be separated from each other, can also be fine aggregate and coarse aggregate by Segregation.In step 4, the product of step 3 is collected respectively.
Technical scheme of the present invention can roll respectively according to the size of concrete particle, thus the coarse aggregate in discarded concrete, fine aggregate can be enable effectively to be separated with mortar powder.By technique scheme, and this technical scheme not only separating effect is better, and easy handling and good energy saving property.
Preferably, described step 2 also comprises the impurity in the described concrete particle of removing, sieve, and described concrete particle particle diameter being greater than predetermined size smashes again to the described concrete particle after removal of impurities.
In step 2, when possibly the impurity in concrete blocks being discharged after concrete blocks is smashed, therefore preferably again removal of impurities is carried out to concrete particle, and the concrete particle after removal of impurities is sieved, and the size of sieving the screen cloth of concrete particle can carry out being chosen as predetermined size as required, the concrete particle being greater than this mesh size cannot again be sent into shredder assembly and smash by screen cloth.
Preferably, described step 3 comprises being sent in multiple different rolling device by described concrete particle respectively according to the value of the particle diameter of described concrete particle and rolls, multiple described rolling device is set with default squeeze respectively, when rolling device described in one of them detects the default squeeze value of the squeeze of described concrete particle being greater than to this rolling device, this concrete particle is transported to another and processes in the described rolling device of more Large stone by this rolling device.
In the preferred embodiment, concrete particle is sent into different rolling devices according to particle diameter, or the different piece preferably also can sending into same rolling device respectively rolls, the present invention is not limited this, herein for convenience of description, for multiple different rolling device, those skilled in the art correspondingly can understand and be adapted in other preferred implementations.
The plurality of rolling device is set with default squeeze, and in the process rolled, detect the squeeze that concrete particle is rolled, its principle is, the size rolling gap of each rolling device is set to the concrete particle being applied to different-grain diameter, this default squeeze should be set to namely to remove the mortar adhered to outside aggregate, and the rod that rolls of rolling device can not be made again directly to contact with aggregate and damage and roll rod.
When the squeeze that reality detects is greater than default squeeze, what illustrate that the aggregate size of concrete particle is greater than this rolling device rolls the treatable size in gap, and therefore this concrete particle can be transported to another and process in the rolling device of more Large stone by this rolling device.Like this, all concrete particles can not only be made can both to be separated into aggregate and mortar powder fully, and aggregate can also to be separated according to particle diameter, thus fine aggregate and coarse aggregate are separated from each other.
Preferably, described step 4 comprises and utilizes air sieve apparatus to be separated with coarse aggregate mortar powder, fine aggregate.
The present invention also provides a kind of roll-in separating machine, wherein, 2N the roller that this roll-in separating machine comprises housing 1 and is arranged in this housing 1, this 2N roller forms N number of roller pair, the turning axle of described roller is disposed adjacent in parallel to each other successively, the public tangent plane of each roller centering two rollers is along downward-sloping to the direction of 2N roller from the first roller, described first roller is provided with opening for feed on the described housing 1 of top, the gap between described roller centering two rollers from described first roller to N roller to increasing gradually.
Roll-in separating machine of the present invention is used in the step 3 of the separation method of above-mentioned discarded concrete.2N roller in this roll-in separating machine is arranged side by side, and this 2N roller forms N number of roller pair, has certain gap between two rollers of each roller centering, and concrete particle carries out the mortar rolling to remove outside aggregate in the gap.Further, from the first roller to N cupboard pair, each roller between gap increase gradually.
Be separated from each other in the size of roll-in separating machine according to particle diameter for the ease of concrete particle, preferably, the height of the turning axle of all rollers in described roll-in separating machine reduce gradually from the first roller to 2N roller and copline arrange, the radius size of all rollers is identical, the public tangent plane copline that roller described in each is right.
That is, the height of the turning axle of 2N roller reduces from gradually with roller to 2N roller, and because the radius size of roller is identical, therefore 2N roller is arranged on public tangent plane ground altogether, and the public tangent plane of this 2N roller is from the first roller to the downward-sloping plane of 2N roller.
Like this, first roller is provided with opening for feed on the housing 1 of top, after concrete particle enters from opening for feed, the larger concrete particle of particle diameter because weight is comparatively large along the N number of roller be obliquely installed to and be rolled into the roller pair in downstream, and the less concrete particle weight of particle diameter is less, then directly drop on the roller centering of upstream after blanking.When roll-in separating machine works, the rotation that two rollers of each roller centering are relative, thus the concrete particle between two rollers is rolled, hereinafter will describe in detail.
Preferably, the i-th roller pair and the i-th+1 roller between two rollers in gap and the i-th roller centering between gap equal, wherein, i=1,2 ..., N.
Also be relatively rotate between two rollers that two adjacent roller centerings are adjacent, also can play the effect that concrete particle is rolled.
Preferably, described N number of roller is formed with discharge port on the described housing of below.In roll-in separating machine, the opening for feed of concrete materials above housing 1 enters, and through this N number of roller right rolling, the discharge port that the product rolling rear generation is formed from the housing 1 of the right below of roller is discharged to outside roll-in separating machine.
Preferably, described roller is to comprising reversible roller pair, this reversible roller is to the dynamometry roller 2 comprising controller and be disposed adjacent successively from upstream to downstream and reversible roller 3, this dynamometry roller 2 and this reversible roller 3 can relatively rotate around respective turning axle respectively, and the linear velocity direction of opposite segments is tangentially downward between described dynamometry roller 2 and described reversible roller 3
Described dynamometry roller 2 can detect the squeeze that between described dynamometry roller 2 and described reversible roller 3, material is subject to, and this squeeze is sent to described controller;
Described controller is for storing default squeeze, and described squeeze and described default squeeze are compared, when described squeeze is greater than described default squeeze, described controller controls the reverse rotation of described reversible roller 3 and by the described roller pair of the mass transport between described dynamometry roller 2 and described reversible roller 3 to downstream.
In roll-in separating machine of the present invention, this N number of roller centering comprises reversible roller pair, and this reversible roller is to comprising dynamometry roller 2 and reversible roller 3, and this dynamometry roller 2 is arranged on the upstream of reversible roller 3, and namely the turning axle of dynamometry roller 2 is higher than the turning axle of reversible roller 3.
This dynamometry roller 2 relatively rotates around respective turning axle respectively with reversible roller 3, namely dynamometry roller 2 is contrary with the sense of rotation of reversible roller 3, and between dynamometry roller 2 and reversible roller 3 relative part, the linear velocity direction of dynamometry roller 2 and reversible roller 3 is downward along the tangent line of roller circumference.And the sense of rotation of right two the adjacent rollers of adjacent two reversible rollers is also contrary, but its linear velocity direction along roller circumference tangent line upwards.
This dynamometry roller 2 can detect its pressure born.Because the turning axle of 2N roller is arranged on the bearing of housing 1 inwall by bearing support, and, preferably, pin type pressure transmitter is set between the bearing support and the bearing of housing 1 of dynamometry roller 2.In addition, this dynamometry roller 2 also can adopt the mode that in prior art, other are suitable for carry out pressure survey.
In addition, this reversible roller is to also comprising controller, this controller can accept the squeeze that dynamometry roller 2 detects, and compare presetting squeeze in this squeeze and controller, only when squeeze is greater than default squeeze, prove this reversible roller between the particle diameter of concrete particle be greater than this reversible roller between the particle diameter of particle that can mill of gap, this Time Controller controls the reverse rotation of reversible roller 3, thus the roller pair of the larger concrete particle of the particle diameter of can milling concrete particle excessive for the particle diameter between dynamometry roller 2 and reversible roller 3 being transported to downstream.
Therefore, preferably, in roll-in separating machine, from the first roller below the opening for feed of housing 1 to, multiple reversible roller pair is set continuously abreast.On the one hand, by arranging with reducing gradually from the first roller to the turning axle height of 2N roller, make to increase gradually the particle diameter of handled concrete particle from the first roller to N roller; On the other hand, the reversible roller 3 of the reversible roller centering of upstream can retrograde rotation and particle diameter is exceeded the roller pair that its concrete particle can milling particle size range is transported to the larger concrete particle of the particle diameter of can milling in downstream.
Preferably, described roller is arranged on the roll adjustable pair in the right downstream of described reversible roller to also comprising, this roll adjustable is to comprising the stationary roll 4 and movable roll 5 that are disposed adjacent successively to downstream from upstream, this stationary roll 4 and this movable roll 5 can relatively rotate around respective turning axle respectively, and the linear velocity direction of described stationary roll 4 and described movable roll 5 opposite segments is tangentially downward
Described housing 1 is also formed with chute 6, and the turning axle of described movable roll 5 to be arranged in this chute 6 and can to fix relative to described chute 6 along the translation of described chute 6.
In roll-in separating machine of the present invention, this N number of roller centering comprises roll adjustable pair, and this roll adjustable is to comprising stationary roll 4 and movable roll 5, and this stationary roll 4 is arranged on the upstream of movable roll 5, and namely the turning axle of stationary roll 4 is higher than the turning axle of movable roll 5.
This stationary roll 4 relatively rotates around respective turning axle respectively with movable roll 5, namely stationary roll 4 is contrary with the sense of rotation of movable roll 5, and between stationary roll 4 and movable roll 5 relative part, the linear velocity direction of stationary roll 4 and movable roll 5 is downward along the tangent line of roller circumference.
Roll adjustable centering, the turning axle of stationary roll 4 is arranged on by bearing support on the bearing of housing 1 inwall, and the turning axle of movable roll 5 then can along chute 6 translation of housing 1.According to mentioned above, reversible roller is to the reversible roller pair that concrete particle excessive for particle diameter can be transported to downstream, because this roll adjustable is to being arranged on the right downstream of reversible roller, therefore the reversible roller 3 of last reversible roller to the reversible roller of most downstream (be arranged in) reverse rotation can be transported to roll adjustable pair size to be exceeded the concrete particle of this reversible roller to the particle diameter that can mill.
Gap between the stationary roll 4 of this roll adjustable centering and movable roll 5 can by adjusting the turning axle of movable roll 5 along chute 6 translation.Therefore, when there is the phenomenons such as concrete particle clamping stagnation between stationary roll 4 and movable roll 5, movable roll 5 also can be fixed in position along chute 6 translation, thus the concrete particle avoiding hardness larger damages roller.
Preferably, spring part 7 and adjustment part 8 is also provided with in described chute 6, this adjustment part 8 comprises interconnective fixed part and regulating rod, this regulating rod extends towards described movable roll 5 side relative to this fixed part, described fixed part is fixedly installed in described chute 6, one end of described spring part 7 is connected with the turning axle of described movable roll 5, and the other end is connected with described regulating rod, and described regulating rod can adjust relative to the extrusion of described fixed part.
Provide the embodiment of the turning axle adjustment of a movable roll 5 in the preferred embodiment.Wherein the turning axle of movable roll 5 is connected with spring part 7, therefore when the squeeze that movable roll 5 is subject to concrete particle applying is excessive, in order to avoid damaging movable roll 5, the turning axle of this movable roll 5 moves towards the direction of extrusion spring part 7, and the direction namely towards adjustment part 8 is moved; And after the concrete particle of clamping stagnation falls from the gap between stationary roll 4 and movable roll 5, the turning axle of movable roll 5 resets under the effect of the restoring force of spring part 7.
In addition, the length that the regulating rod in this adjustment part 8 stretches out relative to fixed part can adjust, thus the preliminary tension of adjustment spring part 7 pairs of movable roll 5.
The present invention also provides a kind of separation system of discarded concrete, and wherein, this separation system comprises the feeder, crushing mechanism, separation mechanism, screening mechanism and the collecting mechanism that connect successively, wherein,
Described feeder is used for described discarded concrete to be transported to described crushing mechanism;
Described crushing mechanism is used for described discarded concrete to smash into concrete particle;
Described separation mechanism is used for rolling respectively according to the size of described concrete particle, is separated from each other to make the mortar in described concrete particle and aggregate;
It is powder, fine aggregate and coarse aggregate that described screening mechanism is used for the screening of the product of described separation mechanism;
Described collection device is used for collecting described powder, fine aggregate and coarse aggregate respectively.
Separation system of the present invention can realize the separation method of discarded concrete of the present invention.Wherein, first pre-treatment is carried out to discarded concrete, be divided into bulk by after discarded concrete removal of impurities, then by feeder, the discarded concrete of this bulk is transported to crushing mechanism; Crushing mechanism is used for discarded concrete to smash into concrete particle, corresponding with the step one in separation method of the present invention and step 2.
Separation mechanism is used for the aggregate in concrete particle to be separated with mortar, corresponding with the step 3 in separation method of the present invention.Screening mechanism is corresponding with the step 4 in separation method of the present invention with collection device.
Preferably, described feeder comprises Bar strip type feeding machine 10, and discarded concrete is transported to described crushing mechanism by this Bar strip type feeding machine 10.This Bar strip type feeding machine 10 has pre-screen function, can by Impurity removals such as earth.
Preferably, described crushing mechanism comprises the impact breaker 20, tramp iron separator 30, separator for light impurities 40 and the trommel screen 50 that connect successively,
Described impact breaker 20 is for smashing into described concrete particle by described discarded concrete;
Described concrete particle successively through tramp iron separator 30 to remove metallic impurity, and separator for light impurities 40 is to remove light impurities;
Described concrete particle after removal of impurities is through the screening of described trommel screen 50, the described concrete particle that particle diameter is less than or equal to the predetermined size of described trommel screen 50 enters into described separation mechanism, and the described concrete particle that particle diameter is greater than the predetermined size of described trommel screen 50 is sent back to described impact breaker 20.
In the preferred implementation of this crushing mechanism, impact breaker 20 is for smashing into concrete particle by larger-size block discarded concrete, and utilize tramp iron separator 30 to be removed by the metallic impurity separated from block discarded concrete in shattering process, and remove light impurities with separator for light impurities 40.
The size of mesh of the screen cloth of trommel screen 50 can be set to the size of predetermined size as required, therefore the concrete particle being less than or equal to this predetermined size after just enters separation mechanism by trommel screen 50, and the concrete particle that particle diameter is greater than the predetermined size of trommel screen 50 sends back to impact breaker 20 re-starts fragmentation, until particle diameter be reduced to can by the sieve aperture of trommel screen 50 till.
It should be noted that, this crushing mechanism also can select other structures of the prior art to implement, and the present invention is not limited to above-mentioned concrete structure.
Preferably, the light impurities collecting chamber 42 that described separator for light impurities comprises material blanking tube 41 and is communicated with this material blanking tube 41, the top of this material blanking tube 41 is provided with opening for feed, the bottom of described material blanking tube 41 is provided with discharge port, material blanking tube 41 between this opening for feed and discharge port is also provided with blast inlet, this blast inlet is corresponding with this light impurities collecting chamber 42, described light impurities collecting chamber 42 is also provided with air outlet, this air outlet is provided with filter screen.
Provide a kind of embodiment of separator for light impurities in the preferred embodiment.Concrete particle comprising light impurities enters into material blanking tube 41 from the opening for feed of material blanking tube 41, blast inlet is connected with devices such as air compressor, thus the concrete particle blowing of falling in material blanking tube 41, proportion due to light impurities is little and lightweight, be separated from concrete particle to make light impurities and enter into communicating pipe by the connected entrance that material blanking tube 41 was communicated with communicating pipe, and finally enter light impurities collecting chamber, and this fluidizing air is flowed out by the air outlet on light impurities collecting chamber 42, and the filter screen that air outlet is arranged can prevent fluidizing air from impurity and dust etc. being brought in band outside air.
Wherein, the bottom of this light impurities collecting chamber 42 is preferably formed with light impurities discharge port, thus the light impurities collected in this light impurities collecting chamber 42 is discharged.In addition, also can adjustment plate be preferably set at the communicating pipe place being communicated with material blanking tube 41 and light impurities collecting chamber 42, this adjustment plate can adjust the gas flow angle that fluidizing air enters into light impurities collecting chamber 42, to adjust the impurity-eliminating effect to concrete particle as required.
In addition, concrete particle can be transported to the opening for feed of material blanking tube 41 preferably by feed belt machine, and the below of the discharge port of material blanking tube 41 also can arrange discharging belt conveyer with collect the concrete particle after removal of impurities and conveying carry out next art breading.
Preferably, described separation mechanism comprises roll-in separating machine 60 of the present invention.
Preferably, described screening mechanism comprises air sieve apparatus 70, this air sieve apparatus 70 comprises air sieve apparatus housing 71 and is arranged on the vibratory screening apparatus 72 in this air sieve apparatus housing 71, this vibratory screening apparatus 72 has a down dip from the second side direction that the first side direction is relative, described air sieve apparatus housing 71 above first side of described vibratory screening apparatus 72 is provided with opening for feed 73, described air sieve apparatus housing 71 around first side of described vibratory screening apparatus 72 is also provided with blast inlet 74, described air sieve apparatus housing 71 around second side of described vibratory screening apparatus 72 is also provided with air outlet 75, described air sieve apparatus housing 71 below described vibratory screening apparatus 72 is provided with fine aggregate discharge port 76, powder discharge port 77 and coarse aggregate discharge port 78.
This preferred implementation provides a kind of embodiment of air sieve apparatus 70.Wherein, this air sieve apparatus 70 according to the different specific weight of powder, fine aggregate and coarse aggregate, utilize wind-force to be separated differing materials.The product produced by separation mechanism enters into air sieve apparatus from the opening for feed 73 of air sieve apparatus housing 71, and drops on vibratory screening apparatus 72, and this vibratory screening apparatus 72 has a down dip from the second side direction that the first side direction below opening for feed 73 is relative.And, drop to the process of vibratory screening apparatus 72 at material from opening for feed 73, fluidizing air in air sieve apparatus housing 71 is entered into by the powder of material and Segregation from blast inlet 74, and the aggregate dropped on vibratory screening apparatus 72 is separated from each other on the vibratory screening apparatus 72 tilted according to coarse aggregate and varying in weight of fine aggregate, wherein heavier coarse aggregate along vibratory screening apparatus 72 inclined-plane slide downward and fall from the coarse aggregate discharge port 78 of the second side of air sieve apparatus housing 71, fine aggregate then falls from the fine aggregate discharge port 76 of the first side near air sieve apparatus housing 71, the powder be separated from aggregate then falls from the powder discharge port 77 between fine aggregate discharge port 76 and coarse aggregate discharge port 78.
Because the vibratory screening apparatus 72 in air sieve apparatus 70 is arranged obliquely, therefore air sieve apparatus housing 71 is also in the shape tilted, and blast inlet 74 on air sieve apparatus housing 71 and air outlet 75 are arranged on the sustained height on air sieve apparatus housing 71, thus are convenient to fluidizing air and are discharged to outside air sieve apparatus housing 71.
It should be noted that, in separation system between each mechanism and device, convey materials can be carried out by transport units such as rotary conveyors.
Below only illustrate the preferred implementation of separation system, the present invention is not limited to this, and the structure that in prior art, any one is suitable for can be applied in the present invention.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible array mode.
In addition, also can carry out arbitrary combination between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (17)
1. a separation method for discarded concrete, is characterized in that, this separation method comprises the following steps:
Step one: pre-treatment is carried out to discarded concrete, the impurity in removing discarded concrete also obtains concrete blocks;
Step 2: described concrete blocks is smashed into concrete particle;
Step 3: the size according to described concrete particle rolls respectively, is separated from each other to make the mortar in described concrete particle and aggregate;
Step 4: by the screening of the product of step 3 for powder, fine aggregate and coarse aggregate are also collected respectively.
2. separation method according to claim 1, is characterized in that, described step one comprises metallic impurity in artificial removing discarded concrete and light impurities.
3. separation method according to claim 1, it is characterized in that, described step 2 also comprises the impurity in the described concrete particle of removing, sieve, and described concrete particle particle diameter being greater than predetermined size smashes again to the described concrete particle after removal of impurities.
4. separation method according to claim 1, it is characterized in that, described step 3 comprises being sent in multiple different rolling device by described concrete particle respectively according to the value of the particle diameter of described concrete particle and rolls, multiple described rolling device is set with default squeeze respectively, when rolling device described in one of them detects the default squeeze value of the squeeze of described concrete particle being greater than to this rolling device, this concrete particle is transported to another and processes in the described rolling device of more Large stone by this rolling device.
5. a roll-in separating machine, it is characterized in that, this roll-in separating machine comprises housing (1) and is arranged on 2N roller in this housing (1), this 2N roller forms N number of roller pair, the turning axle of described roller is disposed adjacent in parallel to each other successively, the public tangent plane of each roller centering two rollers is along downward-sloping to the direction of 2N roller from the first roller, described first roller is provided with opening for feed on the described housing (1) of top, the gap between described roller centering two rollers from described first roller to N roller to increasing gradually.
6. roll-in separating machine according to claim 5, it is characterized in that, the height of the turning axle of all rollers in described roll-in separating machine reduce gradually from the first roller to 2N roller and copline arrange, the radius size of all rollers is identical, the public tangent plane copline that roller described in each is right.
7. roll-in separating machine according to claim 5, is characterized in that, the i-th roller pair and the i-th+1 roller between two rollers in gap and the i-th roller centering between gap equal,
Wherein, i=1,2 ..., N.
8. roll-in separating machine according to claim 5, is characterized in that, described N number of roller is formed with discharge port on the described housing of below.
9. roll-in separating machine according to claim 5, it is characterized in that, described roller is to comprising reversible roller pair, this reversible roller is to the dynamometry roller (2) comprising controller and be disposed adjacent successively from upstream to downstream and reversible roller (3), this dynamometry roller (2) and this reversible roller (3) can relatively rotate around respective turning axle respectively, and the linear velocity direction of opposite segments is tangentially downward between described dynamometry roller (2) and described reversible roller (3)
Described dynamometry roller (2) can detect the squeeze that between described dynamometry roller (2) and described reversible roller (3), material is subject to, and this squeeze is sent to described controller;
Described controller is for storing default squeeze, and described squeeze and described default squeeze are compared, when described squeeze is greater than described default squeeze, described controller controls described reversible roller (3) reverse rotation and by the described roller pair of the mass transport between described dynamometry roller (2) and described reversible roller (3) to downstream.
10. roll-in separating machine according to claim 9, it is characterized in that, described roller is arranged on the roll adjustable pair in the right downstream of described reversible roller to also comprising, this roll adjustable is to comprising the stationary roll (4) and movable roll (5) that are disposed adjacent successively to downstream from upstream, this stationary roll (4) and this movable roll (5) can relatively rotate around respective turning axle respectively, and the linear velocity direction of described stationary roll (4) and described movable roll (5) opposite segments is tangentially downward
Described housing (1) is also formed with chute (6), the turning axle of described movable roll (5) to be arranged in this chute (6) and can to fix relative to described chute (6) along (6) translation of described chute.
11. roll-in separating machines according to claim 10, it is characterized in that, spring part (7) and adjustment part (8) is also provided with in described chute (6), this adjustment part (8) comprises interconnective fixed part and regulating rod, this regulating rod extends towards described movable roll (5) side relative to this fixed part, described fixed part is fixedly installed in described chute (6), one end of described spring part (7) is connected with the turning axle of described movable roll (5), the other end is connected with described regulating rod, described regulating rod can adjust relative to the extrusion of described fixed part.
The separation system of 12. 1 kinds of discarded concretes, is characterized in that, this separation system comprises the feeder, crushing mechanism, separation mechanism, screening mechanism and the collecting mechanism that connect successively, wherein,
Described feeder is used for described discarded concrete to be transported to described crushing mechanism;
Described crushing mechanism is used for described discarded concrete to smash into concrete particle;
Described separation mechanism is used for rolling respectively according to the size of described concrete particle, is separated from each other to make the mortar in described concrete particle and aggregate;
It is powder, fine aggregate and coarse aggregate that described screening mechanism is used for the screening of the product of described separation mechanism;
Described collection device is used for collecting described powder, fine aggregate and coarse aggregate respectively.
13. separation systems according to claim 12, is characterized in that, described feeder comprises Bar strip type feeding machine (10), and discarded concrete is transported to described crushing mechanism by this Bar strip type feeding machine (10).
14. separation systems according to claim 12, it is characterized in that, described crushing mechanism comprises the impact breaker (20), tramp iron separator (30), separator for light impurities (40) and the trommel screen (50) that connect successively
Described impact breaker (20) is for smashing into described concrete particle by described discarded concrete;
Described concrete particle successively through tramp iron separator (30) to remove metallic impurity, and separator for light impurities (40) is to remove light impurities;
The screening of described concrete particle through described trommel screen (50) after removal of impurities, the described concrete particle that particle diameter is less than or equal to the predetermined size of described trommel screen (50) enters into described separation mechanism, and the described concrete particle that particle diameter is greater than the predetermined size of described trommel screen (50) is sent back to described impact breaker (20).
15. separation systems according to claim 14, it is characterized in that, described separator for light impurities comprises material blanking tube (41) and light impurities collecting chamber (42), be communicated with by communicating pipe between this light impurities collecting chamber (42) with this material blanking tube (41), the top of described material blanking tube (41) is provided with opening for feed, the bottom of described material blanking tube (41) is provided with discharge port, material blanking tube (41) between this opening for feed and discharge port is also provided with blast inlet, this blast inlet is corresponding with the connected entrance that this communicating pipe is communicated with described material blanking tube (41), described light impurities collecting chamber (42) is also provided with air outlet, this air outlet is provided with filter screen.
16. separation systems according to claim 12, is characterized in that, described separation mechanism comprises the roll-in separating machine (60) in the claims 5-11 described in any one.
17. separation systems according to claim 12, it is characterized in that, described screening mechanism comprises air sieve apparatus (70), this air sieve apparatus (70) comprises air sieve apparatus housing (71) and is arranged on the vibratory screening apparatus (72) in this air sieve apparatus housing (71), this vibratory screening apparatus (72) has a down dip from the adjustable side direction that the first side direction is relative, described air sieve apparatus housing (71) above first side of described vibratory screening apparatus (72) is provided with opening for feed (73), described air sieve apparatus housing (71) around first side of described vibratory screening apparatus (72) is also provided with blast inlet (74), described air sieve apparatus housing (71) around the adjustable side of described vibratory screening apparatus (72) is also provided with air outlet (75), the described air sieve apparatus housing (71) of described vibratory screening apparatus (72) below is provided with fine aggregate discharge port (76), powder discharge port (77) and coarse aggregate discharge port (78).
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| CN107021657A (en) * | 2017-05-31 | 2017-08-08 | 福州大学 | A kind of device and method for preparing regenerated coarse aggregate |
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| CN114405644A (en) * | 2022-01-21 | 2022-04-29 | 上海山美环保装备股份有限公司 | Dry aggregate pre-sorting system and floor type sand making process system |
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Effective date of registration: 20170615 Address after: 410000 Hunan province Changsha hi tech Development Zone, Lin Yulu No. 288 Patentee after: ZOOMLION ENVIRONMENTAL INDUSTRY Co.,Ltd. Address before: 410000 Hunan province Changsha hi tech Development Zone, Lin Yulu Lugu office building No. 288 room 3020 Co-patentee before: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY Co.,Ltd. Patentee before: ZOOMLION MATERIAL HANDLING EQUIPMENT Co.,Ltd. |