CN211637344U - Parabolic sorting device for recycled aggregate bricks and concrete of construction waste - Google Patents
Parabolic sorting device for recycled aggregate bricks and concrete of construction waste Download PDFInfo
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- CN211637344U CN211637344U CN201922256720.5U CN201922256720U CN211637344U CN 211637344 U CN211637344 U CN 211637344U CN 201922256720 U CN201922256720 U CN 201922256720U CN 211637344 U CN211637344 U CN 211637344U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/58—Construction or demolition [C&D] waste
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Abstract
The patent of the utility model discloses a building rubbish recycled aggregate brick and concrete parabola formula's sorting unit. The separation of the bricks and the concrete is realized under the condition that the falling points of the parabolic motion modes are different by utilizing the specific gravity difference characteristic of the bricks and the concrete. The device comprises a feeding hole, a brick-concrete block separation conveying belt, a safety cover, a mortar discharging hole, a brick-concrete mixed discharging hole and a concrete discharging hole. The building waste recycled aggregate enters from the feeding hole, passes through the brick-concrete block separation conveyor belt, and sequentially and respectively falls into the discharging holes of the bricks and the concrete by using the rotating speed of the conveyor belt. The device can effectively realize the separation of the building garbage recycled material brick and the concrete, and has the characteristics of low cost, simple maintenance and dust suppression.
Description
Technical Field
The utility model belongs to construction waste processing field indicates the separation of brick and concrete among the construction waste recycled material very much, concretely relates to construction waste recycled aggregate brick and concrete parabola formula sorting unit.
Background
In recent years, with the increasing speed of urbanization and the construction of urban construction projects, the amount of construction waste generated in various places is also increasing. Nowadays, the construction waste becomes the most concentrated solid waste with the largest amount discharged by single variety in cities in China. Due to the restriction of factors such as ecological deficiency of life cycle industry and difficult recycling of construction waste, the construction waste resource utilization prospect is not clear. The recycling of the construction waste is favorable for changing the dilemma of the waste surrounding city caused by disordered stacking and landfill of the construction waste, saves resources, protects the environment, creates value and is an effective method for solving the problem of treatment of the construction waste.
At present, the proportion of bricks and concrete in the construction waste is large in China. The bricks in the construction waste can be recycled, so that the construction waste has high utilization value, the concrete in the construction waste has high strength and good stability, and the cement-doped concrete has good surface activity and is a good road paving material. Therefore, in order to better promote the comprehensive utilization of resources and develop sustainable circular economy, the construction waste must be recycled. How to recycle bricks and concrete in the construction waste and put the recycled construction waste into engineering use becomes a key point to be solved for the current green environmental protection problem.
Chinese utility model patent CN109174640A discloses a splitter of building rubbish brick and concrete, utilize separating mechanism separation brick, the concrete, separating mechanism is including the separation urceolus, rotate thumb wheel and powerful fan, the top mountain foot of separation urceolus has decided and has connect the hopper, the bottom of separation urceolus is equipped with brick silo and concrete silo, the lateral wall fixedly connected with driving motor of separation urceolus, driving motor's output fixedly connected with rotates the thumb wheel, it is located under the hopper to rotate the thumb wheel, the both ends of rotating the thumb wheel are connected with the outer letter rotation of separation respectively, the below of rotating the thumb wheel is equipped with powerful fan, powerful fan and separation urceolus left side wall fixed connection.
However, the device uses a strong fan to blow, so as to achieve the purpose of separating bricks and concrete in the construction waste. The method needs overlarge power, has a complex structure, and considers that the economic benefit is not high and the separation effect is not ideal.
Chinese utility model patent CN209061604U discloses a senior screening plant of building rubbish, including the interior barrel and the outer barrel that set up with one heart, the lower extreme of outer barrel is provided with the crown plate, the upper end of interior barrel is provided with the feed cone, the lower extreme of interior barrel is provided with hemisphere fine screen, evenly be provided with a plurality of relief holes on the hemisphere fine screen, the central point of hemisphere fine screen puts and is provided with the bin outlet, be provided with the coarse screen in the interior barrel, be provided with the coarse fodder export on the inner tube body lateral wall of coarse screen top, coarse fodder exit articulates there is the coarse fodder door, be provided with the guide awl on the inner wall of outer barrel, the height that highly is less than the coarse fodder export of guide awl upper end, be provided with the several bin outlet on the urceolus body lateral. The utility model discloses a at the during operation, interior barrel is in the rotating-state, pours rubbish into interior barrel back, earlier through the screening of coarse screen cloth and hemisphere fine screen cloth, with the big, little building rubbish separation of block footpath.
Chinese utility model patent CN208033266U discloses a construction waste separating, recovering and recycling system, which adopts a roller screen between a feeding port and a crushing device to separate bricks, tiles or concrete blocks with larger particles into the crushing device through larger shaft clearance, and directly sends medium-sized particles of stones, bricks or concrete small concrete bodies into a stripping device for treatment; a rolling sieve is adopted between the crushing device and the stripping device, the materials which are still large after being crushed are sent back to the crushing device again for separation, and the materials with medium size are sent into the stripping device for kneading; a vibrating screen is adopted between the stripping device and the material hopper, and different vibrating screen apertures can be designed according to the requirement of the mesh number of materials.
The building garbage separating device and the building garbage separating system do not specifically separate bricks and concrete in the building garbage relatively, but only separate coarse aggregate and fine aggregate in the building garbage. And the dust-proof agent contains more relatively light components, thus being easy to cause dust emission and causing certain pollution to the environment.
In conclusion, the existing sorting equipment for the recycled aggregate bricks and concrete of the related construction wastes is not perfect, and in consideration of economic benefits and the simplicity of equipment, the research on the sorting equipment for the recycled aggregate bricks and concrete of the construction wastes has certain value significance for the reasonable utilization of resources.
SUMMERY OF THE UTILITY MODEL
Because the relative lack of current building rubbish brick, concrete splitter, the aspect such as separation purity and cost still treats further improvement, the utility model provides a building rubbish recycled aggregate brick and concrete parabola formula sorting unit.
In order to solve the technical problem, the utility model discloses take following technical scheme:
the utility model provides a building rubbish recycled aggregate brick and concrete parabola formula sorting unit, including feed inlet, fragment of brick-concrete piece separation conveyer belt, conveyer belt safety guard, mortar discharge gate, fragment of brick discharge gate, brick and concrete mixed discharge gate, concrete discharge gate. Totally four discharge gates are placed without the interval, and the material is the aluminum alloy, and the position of four discharge gates arranges in proper order: the mortar discharge port is positioned on the left side of the conveyor belt, and the top of the mortar discharge port is connected with the top of the brick discharge port at an angle of 30-35 degrees. The brick discharge port is positioned on the left side of the mortar discharge port, and the top of the brick discharge port is connected with the top of the concrete mixing discharge port by 20-25 degrees. The mixed brick and concrete discharge port is positioned on the left side of the brick discharge port, and the top of the brick and concrete discharge port is connected with the top of the concrete discharge port at a position of 20-25 degrees. The concrete discharge hole is positioned on the left side of the mixed discharge hole of the brick and the concrete. Finally, the preliminary separation of the bricks and the concrete is realized.
The brick-concrete block separation conveyor belt is made of light polyvinyl chloride, and the running speed of the conveyor belt is adjusted by using a high-frequency converter. A safety cover is arranged above the brick-concrete block separation conveyor belt, so that the pollution of flying dust can be effectively reduced. And the screw rod connected with the brick-concrete block separation conveyor belt adjusts the included angle between the conveyor belt and the horizontal direction by adjusting the lifting platform.
The beneficial effects of the utility model are that, a brand-new device to two kinds of material separation of brick and concrete in the building rubbish recycled aggregate is provided, easy and simple to handle, pollute lessly, can make brick, concrete carry out efficient reutilization.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a full view of a parabolic sorting device for recycled aggregate bricks and concrete of construction waste.
Fig. 2 is a simplified force analysis diagram of the movement of bricks on a brick-concrete block separation conveyor.
Fig. 3 is a simplified diagram of the force analysis of concrete moving on a brick-concrete block separation conveyor.
The symbols in the figures represent:
1-feeding hole, 2-1 brick-concrete block separation conveyor belt, 2-2 safety cover, 3-1 mortar discharging hole, 3-2 brick discharging hole, 3-3 brick and concrete mixture discharging hole and 3-4 concrete discharging hole.
Detailed Description
Firstly, pouring construction waste recycled aggregate bricks with the diameter of 5-10mm and concrete (containing a small amount of mortar) into a feed inlet 1, wherein the feed inlet 1 is funnel-shaped, the upper part of the feed inlet 1 is 250mm long and 200mm wide and is made of aluminum alloy, after the construction waste recycled aggregate enters the feed inlet 1, the construction waste recycled aggregate falls on a brick-concrete block separation conveyor belt 2-1 and moves along with the brick-concrete block separation conveyor belt, the conveyor belt is made of light polyvinyl chloride materials, the rotation capacity is strong, the running speed of the conveyor belt can be adjusted by a high frequency converter, and the included angle between the conveyor belt and the horizontal direction is 30-35 degrees. The recycled bricks and the recycled concrete blocks are separated from the brick-concrete block separation conveyor belt to do parabolic motion under the action of gravity, and the construction waste materials fall down according to different falling point distances.
Meanwhile, after the construction waste recycled aggregate is poured, the building waste recycled aggregate is easy to fly out due to small volume of the building waste recycled aggregate, so that the safety cover 2-2 is utilized and is made of aluminum alloy. Effectively prevents the brick concrete with larger volume blocks from flying out and can reduce the pollution of flying dust. And finally, separating the recycled bricks and the recycled concrete blocks from the brick-concrete block separation conveyor belt under the action of gravity to perform parabolic motion.
The construction waste recycled aggregate falls on the brick-concrete block separation conveyor belt 2-1 after entering the feeding hole 1, and after moving for a certain time, the construction waste recycled aggregate is separated from the brick-concrete block separation conveyor belt and moves in a parabola mode. As a small amount of mortar is mixed in the construction waste recycled aggregate brick and the concrete, the construction waste recycled material taking the mortar as the main component is firstly separated from the brick-concrete block separation conveyor belt, the falling point is closest to the brick-concrete block separation conveyor belt, enters the mortar discharge port 3-1 along the tangent line at an angle of 60 degrees and is then separated out. The regenerated bricks enter the brick discharge port 3-2 along the tangent line at 45 degrees and are separated. Since a small number of the recycled bricks and recycled concrete blocks move in approximately the same time, they have the same drop point area and are separated from the brick and concrete mix discharge port 3-3. The recycled concrete blocks fall into a concrete discharge port 3-4 along a tangent line of 45 degrees and are separated.
And (3) analyzing the specific motion of the construction waste recycled aggregate bricks and concrete by utilizing Newton's second law:
and setting the included angle between the brick-concrete block separation conveyor belt and the horizontal direction as theta, taking the brick-concrete block separation conveyor belt obliquely downwards as the positive direction of an X axis, and taking the brick-concrete block separation conveyor belt vertically upwards as the positive direction of a Y axis. The utility model is suitable for 5-10mm brick and concrete of the same size, and the quality of the brick and the concrete is the same, and the brick and the concrete can be regarded as mass points. When the bricks and the concrete move on the brick-concrete block separating conveyor belt, the moving speed of the bricks and the concrete is less than the rotating speed of the conveyor belt, the bricks and the concrete are subjected to the sliding friction force which horizontally slides downwards along the conveyor belt, the bricks and the concrete have the tendency of sliding downwards, and the acceleration direction horizontally downwards along the conveyor belt.
As in fig. 2, the block is subjected to the following forces in the XOY coordinate:
1. gravity: g1＝m1g 2, supporting force of the conveyor belt on the brick: f1＝m1g cosθ
3. Sliding friction force: f. of1＝μ1m1g cos θ 4. external force: fIn 1. sup.＝m1a1
For the analysis of the stress of the bricks on the brick-concrete block separation conveyor belt, see formula 1 and formula 2:
m1g sinθ+μ1m1g cosθ＝m1a1 equation 1
g sinθ+μ1g cosθ＝a1Equation 2
As shown in fig. 3, the concrete is subjected to the following forces in XOY coordinates:
1. gravity: g2＝m2g 2, supporting force of the conveying belt to the concrete block: f2＝m2g cosθ
3. Sliding friction force: f. of2＝μ2m2g cos θ 4. external force: fIn combination with 2＝m2a2
For the concrete stress analysis on the brick-concrete block separation conveyor belt, see formula 3 and formula 4:
m2g sinθ+μ2m2g cosθ＝m2a2equation 3
g sinθ+μ2g cosθ＝a2Equation 4
The coefficient of dynamic friction between the conveyor belt and the brick is mu10.45-0.6, and the coefficient of dynamic friction with concrete is mu20.25-0.4, comparing formula 2 and formula 4, due to mu1＜μ2To obtain a1＜a2Thereby obtaining V1＜V2And the moving speed of the brick is less than that of the concrete.
According to an initial velocity of V0Parabolic motion, which is divided into uniform linear motion in the horizontal direction and uniform acceleration linear motion in the vertical direction:
x＝v0t cosθ
according to the length of the conveyor belt is fixed, the horizontal movement distance of the bricks and the concrete is the same, and the following can be obtained:
for a brick: mu.s1Large, a1Large, v1Large, t1Small
For the concrete: mu.s2Small, a2Small, v2Small, t2Big (a)
Because the brick and the concrete start to move at the same initial speed, the movement time of the brick is shorter than that of the concrete. Therefore, the falling point of the brick is closer to the transmission belt, and the falling point of the concrete is farther from the transmission belt.
When the final brick and concrete are accelerated to the same speed as the brick-concrete conveyor belt, the stability is achieved, and the relation between the horizontal angle and the friction coefficient of the conveyor belt is obtained according to the principle:
wherein the feed inlet 1 is funnel-shaped, the upper part of the external dimension is 250mm long and 200mm wide. The lower end of the feeding hole 1 is connected with a brick-concrete block separation conveyor belt 2-2, so that the construction waste recycled aggregate can fall on the conveyor belt and continue to move with the conveyor belt after being poured.
The brick-concrete block separation conveyor belt 2-1 is of a shape and size of 2400mm in length, 900mm in width and 2-3mm in thickness, the rubber surface is made of polyvinyl chloride and is composed of polyester fiber cloth and polyvinyl chloride rubber, and the power of a transmission motor is 3-4 KW. The angle between the left end and the horizontal direction is 30-35 degrees, the left end is connected with a mortar discharge port 3-1, a brick discharge port 3-2, a brick and concrete mixed discharge port 3-3 and a concrete discharge port 3-4 in sequence, and the sorted materials are conveyed.
The safety cover 2-2 is positioned above the brick-concrete block separation conveyor belt 2-1, and is 2500mm long and 950mm wide, and is made of aluminum alloy. The effect is that effectively prevent the great brick concrete of volume cubic from flying out to can reduce the pollution of raise dust.
The mortar discharge port 3-1 is positioned on the left side of the conveyor belt, is 100mm long, 100mm wide and 300mm high in shape and size, is made of aluminum alloy, is connected with the top of the brick discharge port at the top in 35 degrees and is used for bearing a small amount of mortar mixed in bricks and concrete.
The brick discharge port 3-2 is positioned at the left side of the mortar discharge port 3-1, is arranged at no interval, has the shape and size of 300mm in length, 250mm in width and 300mm in height, is made of aluminum alloy, is connected with the top of the brick and concrete mixing discharge port 3-3 at the top of 20 degrees and is used for placing the sorted bricks.
The brick and concrete mixed discharge port 3-3 is positioned at the left side of the brick discharge port 3-2, the brick and concrete mixed discharge port and the brick and concrete mixed discharge port are arranged at no interval, the shape and the size are 300mm long, 250mm wide and 300mm high, the top of the height is connected with the top of the concrete discharge port 3-4 and is 20 degrees, and the brick and concrete mixed discharge port is used for placing bricks and concrete which are not completely separated and are slightly mixed.
The concrete discharge port 3-4 is positioned at the left side of the mixed discharge port 3-3 of the brick and the concrete, the brick and the concrete are arranged without a distance, the shape and the size are 300mm long, 250mm wide and 300mm high, and the brick and the concrete are used for placing the sorted concrete.
The brick-concrete block separation conveyor belt 2-1 is made of light polyvinyl chloride, the running speed of the conveyor belt is adjusted by a high frequency converter, and the brick-concrete block separation conveyor belt is placed at an angle of 30-35 degrees with the horizontal angle. The brick block-concrete block separation conveyor belt 2-1 rubber material is woven by high-quality polyvinyl chloride rubber and high-strength polyester yarns. The screw rod connected with the brick-concrete block separation conveyor belt 2-1 can adjust a certain included angle between the conveyor belt and the horizontal direction by adjusting the lifting platform, so that a larger transmission speed can be obtained with smaller power.
Through the discussion process, the preliminary separation of mortar, bricks and concrete in the construction waste recycled aggregate can be finally realized.
Claims (2)
1. The utility model provides a building rubbish recycled aggregate brick and concrete parabola formula sorting unit which characterized in that: the device comprises a feeding hole, a brick-concrete block separation conveyor belt, a conveyor belt safety cover, a mortar discharging hole, a brick-concrete mixed discharging hole and a concrete discharging hole; totally four discharge gates are placed without the interval, and the material is the aluminum alloy, and the position of four discharge gates arranges in proper order: the mortar discharge port is positioned on the left side of the conveyor belt, and the top of the mortar discharge port is connected with the top of the brick discharge port at an angle of 30-35 degrees; the brick discharge port is positioned on the left side of the mortar discharge port, and the top of the brick discharge port is connected with the top of the concrete mixing discharge port at an angle of 20-25 degrees; the mixed discharge port of the brick and the concrete is positioned on the left side of the discharge port of the brick, and the top of the brick and the concrete is connected with the top of the discharge port of the concrete at an angle of 20-25 degrees; the concrete discharge hole is positioned on the left side of the mixed discharge hole of the brick and the concrete; finally, the preliminary separation of the bricks and the concrete is realized.
2. The building waste recycled aggregate brick and concrete parabolic sorting device according to claim 1, wherein the brick-concrete block separation conveyor belt is made of light polyvinyl chloride, and the running speed of the conveyor belt is adjusted by a high frequency converter; a safety cover is arranged above the brick-concrete block separation conveyor belt, so that the pollution of flying dust can be effectively reduced; and the screw rod connected with the brick-concrete block separation conveyor belt adjusts the included angle between the conveyor belt and the horizontal direction by adjusting the lifting platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922256720.5U CN211637344U (en) | 2019-12-16 | 2019-12-16 | Parabolic sorting device for recycled aggregate bricks and concrete of construction waste |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922256720.5U CN211637344U (en) | 2019-12-16 | 2019-12-16 | Parabolic sorting device for recycled aggregate bricks and concrete of construction waste |
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| CN211637344U true CN211637344U (en) | 2020-10-09 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112845101A (en) * | 2021-01-04 | 2021-05-28 | 太原理工大学 | Method and device for separating coal and gangue by using high-speed belt conveyor underground |
| CN113019929A (en) * | 2021-03-01 | 2021-06-25 | 李松 | Building material screening equipment |
| CN114322489A (en) * | 2021-12-20 | 2022-04-12 | 湖南中医药大学 | Traditional Chinese medicine drying device capable of realizing weight separation |
| 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 |
-
2019
- 2019-12-16 CN CN201922256720.5U patent/CN211637344U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112845101A (en) * | 2021-01-04 | 2021-05-28 | 太原理工大学 | Method and device for separating coal and gangue by using high-speed belt conveyor underground |
| CN112845101B (en) * | 2021-01-04 | 2022-07-29 | 太原理工大学 | Method and device for separating coal and gangue by using high-speed belt conveyor underground |
| CN113019929A (en) * | 2021-03-01 | 2021-06-25 | 李松 | Building material screening equipment |
| CN114322489A (en) * | 2021-12-20 | 2022-04-12 | 湖南中医药大学 | Traditional Chinese medicine drying device capable of realizing weight separation |
| CN114322489B (en) * | 2021-12-20 | 2023-03-31 | 湖南中医药大学 | Traditional Chinese medicine drying device capable of realizing weight separation |
| 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 |
| CN114405644B (en) * | 2022-01-21 | 2023-09-26 | 上海山美环保装备股份有限公司 | Dry aggregate pre-sorting system and building-type sand making process system |
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Granted publication date: 20201009 Termination date: 20211216 |