CN104384099A - Brick and concrete block separation device for reusable material of building wastes - Google Patents

Abstract

The invention discloses a brick and concrete block separation device for reusable material of building wastes. The brick and concrete block separation device comprises a casing, wherein a machine frame is fixedly arranged in the casing, the machine frame is arranged in the casing through a support seat which is arranged at the bottom part of the machine frame, an eccentric vibration mechanism and a sieve plate are arranged on the machine frame, the eccentric vibration mechanism is positioned under the sieve plate, is connected with the sieve plate through a hinged drive rod, and is connected with a motor, the sieve plate is driven by the motor and is pushed to vibrate along an elliptical track, the lower end of the sieve plate is connected with a brick outlet, the higher end of the sieve plate is connected with a concrete outlet, the lower ends of the brick outlet and the concrete outlet respectively extend out of the casing, air blowing equipment is fixedly arranged at the lower part of the machine frame, and a material inlet and a trash outlet are arranged on the casing above the machine frame. The brick and concrete block separation device has the advantage that the layering and relative movement of bricks and concrete blocks in the reusable material of the building wastes are realized, so the bricks and the concrete blocks can be effectively separated.

Description

The separator of fragment of brick and concrete block in a kind of building waste recycling material

Technical field

The invention belongs to highway engineering building waste recycling mechanical field, relate to fragment of brick and concrete block separation equipment in a kind of building waste recycling material.

Background technology

In recent years, along with deepening continuously and economic sustainable development of reform and opening-up, China's industrialization and Development of China's Urbanization are significantly accelerated, and China has become building waste in the world and discharged maximum countries.According to statistics, the urban solid garbage heap by the end of China in 2011 has high-volume reached 7,000,000,000 tons, and wherein building waste total amount is about 21 ~ 2,800,000,000 tons, and this quantity at present the annual speed with 10% increasing.People are enjoying while the prosperity of city life and living standard improve, the trying situation of having to again in the face of garbage-surrounded city and environmental pollution.The developed countries such as the U.S., Japan, Germany successfully realize turning waste into wealth through long-term effort, resource circulation utilization.But, based on burned brick and concrete block in China's present stage building waste, building waste treatment technology falls behind, cannot meet new requirement of engineering through the building waste of simple crushing process, and this is the main cause that building waste recycling is difficult to realize economy.

Fire fragment of brick and waste concrete block exists very big-difference in stabilized soil pavement.The intensity of burned brick is little, water absorption rate is large, poor stability, not easily mix with other construction materials and utilize, fragment of brick due to its color homogeneity better, be suitable for recycling colored landscape brick aggregate, its economic worth is higher than common paving brick.And the intensity of waste concrete block is high, stability is better, after mixing cement, there is good surface-active, it is the good aggregate of good roadbase, recycling cement concrete, data shows, the cement concrete adopting discarded concrete aggregate to build 28 days compression strength even higher than cement concrete prepared by new aggregate.If being separated of burned brick material and waste concrete block in building waste can be realized, recycling material by making building waste produces higher than the economic worth of 5 ~ 8 times before, fire fragment of brick and the concrete that are conducive to China a large amount of are dissolving of main building waste simultaneously, reduce the Land Size taken, save construction costs.But at present, also not for the equipment that the regrown materiaves such as fragment of brick in building waste and concrete block are separated.

The equipment separation equipment of two kinds of material particles being had to stone in removal grain common at present, as soybean stone remover, wheat stone remover etc., their operation principle is when being distributed to compass screen surface after grain under particle diameter of the same race and stone mixing, proportion is little, smooth surface, the grain of shape subglobular realizes automatic classification and is slipped to lower one end of sieve plate and discharges under vibration and wind-force comprehensive function, the relative grain rough surface of stone, out-of-shape, than great thus sink to the bottom of sieve plate, the top of sieve plate is moved under continuous print material is pushed and vibrated, then discharged by discharging opening.As can be seen here, the equipment removing at present stone in grain realizes the larger feature of different from those that separation two kinds of particles mainly make use of each side of two kinds of particles to be separated.

Wheat, soybean, rice, stone, fragment of brick, the density of concrete block, size, shape, internal friction angle, floating velocity is given in table 1.

The physical property of several material of table 1

As known from Table 1, the first, the difference of soybean and stone apparent density is about 1.97, and the difference of the apparent density of fragment of brick and concrete block is only 0.2Kg/m ³, be equivalent to 1/10th of the difference of soybean and stone apparent density; The second, the difference of fragment of brick and concrete block floating velocity is also very little, is 2m/s, is about 1/3rd of the difference of the floating velocity of soybean and stone; 3rd, fragment of brick and concrete block shape are irregularly shaped, and make frictional resistance comparatively large, both are difficult in motion process move in opposite directions; According to above-mentioned more known, the different from those of the fragment of brick in building waste and each side of concrete block is very little, not easily separated; In addition, in dimensional directions, in building waste, material size is mainly distributed between 20mm ~ 30mm, is about four times of soybean particle diameter.Based on the analysis of the physical property difference of said brick and concrete block, if the gravity separation method of stone equipment in removal grain traditionally, be obviously difficult to realize being separated of fragment of brick and concrete block in building waste.Inventor, in research process, once attempted multiple common grain de-stone equipment and carries out fragment of brick and concrete block in building waste and test, all they be not successfully separated.

In addition, select in industry in coal in China, ore deposit at present, often through dense media (as water, saturated solution), the material of different apparent density (proportion) is passed through the mode of media flow and vibration, realize the separation of different rate of settling mineral.But for building waste recycling material, by 2013, Xi'an building waste is recycled to the investigation of material, fragment of brick in building waste recycling material and concrete block all account for about 40% of gross mass, and gravel, pottery, the materials such as dust account for about 20% altogether, if adopt above-mentioned coal, the mode using dense medium separation is selected in industry in ore deposit, excessive processing cost will be produced, lose more than gain economically and can not realize promoting, also the meaning of research is just lost, therefore, this technology is obviously also unsuitable for being separated of fragment of brick and concrete block in building waste.

To sum up, existing feed separation technology all can not be applicable to being separated of fragment of brick and concrete block in building waste, and studying fragment of brick in a kind of building waste is necessary with being separated of concrete block.This is worth for the comprehensive market of improving current building waste recycling material has substantial meaning.

Summary of the invention

Being difficult to effectively be separated the problem of fragment of brick and concrete block in building waste in order to solve existing feed separation technology, the invention provides the equipment that in a kind of building waste, fragment of brick is separated with concrete block.

In order to realize above-mentioned task, the present invention adopts following technical scheme to be solved:

A separator for fragment of brick and concrete block in building waste recycling material, comprise housing, housing internal fixtion organic frame, frame is arranged in housing by the bearing being arranged on bottom; Described frame is provided with Link-Belt PD mechanism and sieve plate, eccentric vibration mechanism to be positioned at below sieve plate and to connect sieve plate by hinged drive link, and eccentric vibration mechanism connects motor, promotes sieve plate and do elliptic vibrations under the driving of motor; The comparatively low side of described sieve plate is connected with fragment of brick discharging opening, and the higher-end of sieve plate is connected with concrete discharging opening, and the lower end of fragment of brick discharging opening and its concrete discharging opening is stretched out by housing; The bottom of described frame is fixed with blast apparatus; Housing above frame is provided with charging aperture and impurity discharging port.

Further, described sieve plate adopts step sieve plate, and described step sieve plate comprises screen cloth and is arranged on the protecting wire net of screen cloth both sides; Step sieve plate is inclined and mounted in housing, and screen cloth place plane and horizontal plane angle are 15 ~ 20 °.

Further, described screen cloth is divided into the separate section being positioned at higher one end and the concentrating portions being positioned at lower one end, and separate section is rectangle, and concentrating portions is isosceles trapezoid; The angle of described concentrating portions and separate section elongated surfaces is 2 ° ~ 5.

Further, the square sieve aperture of to be the length of side the be 5 ~ 10mm of the sieve aperture on described screen cloth.

Further, on described step sieve plate, each co-ordination intersection is provided with sieve thorn obliquely.

Further, described sieve thorn is 30 °-60 ° with the angle of the compass screen surface of its place part, and the length of sieve thorn is 5mm ~ 10mm.

Further, described charging aperture is just to the stage casing of step sieve plate, and the cross section of charging aperture is rectangle, and its upper end is provided with a swash plate, and swash plate is used for that compound is inclined and enters step sieve plate, and the incline direction of swash plate is consistent with the fragment of brick discharging direction of motion; The angle of swash plate and charging aperture sidewall is 45 °.

Further, described blast apparatus adopts high pressure blower, its operating frequency 50/60Hz.

Further, the position be connected with housing in described concrete discharging opening upper end is provided with movable bolt, enables concrete discharging opening movable; Collapsible rack is connected with between concrete discharging opening lower end and housing exterior walls.

Further, the housing side between step sieve plate and cover top plate is provided with selected accessory plate, described selected accessory plate adopts arc-shaped metallic plate, and its arc length is 30-50cm, and radian is 40-70.

Compared with prior art, the invention has the beneficial effects as follows:

1, Link-Belt PD machine is adopted to drive sieve plate to move according to elliptical trajectory, in the wind of blast apparatus, under booster action, realize the layering of compound, overcome fragment of brick and concrete block two kinds of materials less problem being difficult to layering caused of difference due to apparent density difference and floating velocity; The sieve plate be obliquely installed, in above-mentioned vibration and by the process of blowing, makes the material of score layer produce relative movement, finally realizes being separated of fragment of brick and concrete block.

2, step sieve plate is divided into designing two portions to contribute to the relative movement of the fragment of brick after layering and concrete block, simultaneously, on step sieve plate, the equally distributed sieve thorn concrete block larger to frictional resistance carries out auxiliary pushing, under elliptic motion trace, concrete block is moved upward along step sieve plate.Solve the problem being difficult to the relative movement after realizing layering that two kinds of materials cause all more greatly due to irregularly shaped and frictional resistance.

3, the present invention has filled up brick in building waste treatment technology and has mixed the blank of isolation technics.Improve building waste recycling material comprehensive utilization ratio and market value, for the popularization of building waste and the marketization provide important technology support, meanwhile, reduce the pollution of building waste to appropriation of land and environment.According to the market situation of Xi'an region building waste recycling material in 2013, introduce the general item investment earning rate ROI=12.7% that fragment of brick is separated with concrete block, compare current existing process equipment general item investment earning rate and improve nearly 6 percentage points.

Accompanying drawing explanation

Fig. 1 is the structural representation of the separator of fragment of brick and concrete block in building waste of the present invention recycling material.

Fig. 2 is step sieve plate top view.

Fig. 3 is the side view of step sieve plate.

Fig. 4 is the schematic diagram of the drive link of eccentric vibration mechanism.

Fig. 5 is the stressed schematic diagram of fragment of brick in separation process.

Fig. 6 is the stressed schematic diagram of concrete block in separation process.

Below in conjunction with the drawings and specific embodiments, further explanation is explained to the present invention.

Detailed description of the invention

The physical characteristic that the present invention is directed to fragment of brick and concrete block two kinds of materials close to and the situation that should not be separated, existing feed separation equipment is improved, enables its structure realize effectively being separated of fragment of brick and concrete block.Be: first that the principle according to being separated arranges vibratory sieve path curves, makes two kinds of material fast hierarchicals in compound to the mentality of designing of equipment of the present invention, then design can make two kinds of materials realize the sieve plate of relative motion; On this basis, to fragment of brick and concrete block, stressed, forms of motion on step sieve plate are analyzed respectively, finally determine the technical parameter of equipment.

1, sieve plate Its Track Design

Because the apparent density difference that is poor and floating velocity of fragment of brick and concrete block is all less, therefore common vibration not easily makes it successfully layering, and adopt Link-Belt PD machine to drive sieve plate to move according to elliptical trajectory in the present invention, Movement Locus Equation is x ²/ 10 ²+ y ²/ 6 ²=1; Angular velocity of satellite motion ω=the 220-390rad/s of Link-Belt PD machine.

2, the structural design of sieve plate

Because the shape of fragment of brick and concrete block two kinds of materials is irregularly shaped, make both frictional resistance larger, even if make both also not easily realize relative movement after successful layering, in order to realize the relative movement of two kinds of materials, present invention employs step sieve plate.

Step sieve plate 7 comprises screen cloth 71 and is arranged on the protecting wire net 72 of screen cloth both sides; Step sieve plate is inclined and mounted in housing, and screen cloth 71 place plane and horizontal plane angle θ are 15 ~ 20 °, and the fragment of brick being positioned at upper strata in two kinds of materials after this angle of inclination enables layering moves downward smoothly along step sieve plate.

Screen cloth 71 is divided into the concentrating portions of the separate section of higher one end and lower one end, and separate section is rectangle, and position concentrating portions is isosceles trapezoid, and its width is gradually little.Such design is to make the fragment of brick glided along screen cloth 71 gradually concentrate.

The concentrating portions of screen cloth 71 and the angle of separate section elongated surfaces are 2 ° ~ 5 °, the object of this design is that comparatively Disengagement zone is slightly slow for the inclined degree of the Disengagement zone of the step sieve plate 7 making to be obliquely installed, enable landing in motion realize again rising to the concrete block of concentrating portions under the effect of wind-force and the periodic vibration of ellipse track, thus improve final separation accuracy.

The square sieve aperture of to be the length of side the be 5 ~ 10mm of the sieve aperture on screen cloth 71.

On screen cloth 71, each co-ordination intersection (i.e. the summit place of each sieve aperture) is provided with sieve thorn 73 obliquely, and sieve thorn 73 is 30 °-60 ° with the angle of the compass screen surface of its place part; The cross sectional dimensions of sieve thorn 73 is 2mm*2mm, and length is 5mm ~ 10mm.

In building waste recycling material, the fragment of brick of building waste after the techniques such as artificial removal of impurities, fragmentation, magnetic separation, selection by winnowing, screening in building waste recycling material and the size of concrete block are generally distributed between 10mm-30mm, therefore, this invention screen size is chosen as 8mm.

In traditional Gravity Separation equipment, because separate object apparent density differs greatly, and there is less frictional resistance, fragment of brick and concrete block layering under wind-force and vibration integrated effect, the fragment of brick that apparent density is little is distributed in upper strata, and the concrete block that apparent density is large is distributed in lower floor.Due to fragment of brick itself and and concrete block between frictional resistance large, the out-of-shape of fragment of brick is difficult to move backward, the present invention adopts step sieve plate, gives concrete block at the power of lower floor's movement and then realize concrete block and move up along step sieve plate under the vibration frequency of Link-Belt PD mode and eccentric vibrating machine.The movement locus of step sieve plate is oval, every motion one-period under the drive of motor, and the sieve thorn 72 on sieve plate promotes concrete blocks and to move up 1 ~ 2 sieve aperture.

3, the motion analysis of fragment of brick

Assuming that each point motion mode is straight line simple harmonic motion on step sieve plate 7.The displacement of step sieve plate 7, speed, acceleration and the pass of time are:

s＝r cos wt

v＝-wr sin wt

a＝-w ²r cos wt

In formula: S-displacement; V-speed; A-acceleration; R-compass screen surface amplitude; W-angular speed; T-time;

As shown in Figure 4, if the inclination angle of the compass screen surface of step sieve plate 7 is β, the angle of support bar and level is α.X-axis is along compass screen surface direction, is just obliquely; Y-axis, perpendicular to compass screen surface, is just upwards.When crank is positioned at I, IV quadrant, sieve nest has downward acceleration, and upwards, fragment of brick has the movement tendency of upper cunning to system inertia power.

Fragment of brick is subject to the effect of following power in XOY coordinate:

1. gravity: G ₁=mg; 2. inertia force: P ₁=mw ²r cos wt

3. airflow acting force 4. lower floor's material is to the support force of fragment of brick: N ₁

5. lower floor's material is to the frictional force of fragment of brick: F ₁=N ₁tan Ф

In formula: the weight of m-fragment of brick; G-acceleration of gravity; K-resistance coefficient; The front face area of f-material;

V-air velocity; γ-air severe; Ф-fragment of brick internal friction angle

Relative sliding motion done by fragment of brick on screen cloth 71, is not subjected to displacement in the Y direction, so Σ Y=0

N ₁+W ₁+P ₁sin(90°-α-β)-G ₁cosβ＝0 (1)

Material has acceleration upwards,

Because of F ₁=N ₁tan Ф, brings itself and equation (1) into equation (2),

$m\frac{d^{2}x}{{\mathrm{dt}}^2}=\frac{1}{\cos \mathrm{\Φ}}[P_1\sin (\mathrm{\α}+\mathrm{\β}+\mathrm{\Φ})-G_1\sin (\mathrm{\β}+\mathrm{\Φ})]+W_1\tan \mathrm{\Φ}$

Namely $m\frac{d^{2}x}{{\mathrm{dt}}^2}=\frac{1}{\cos \mathrm{\Φ}}[{\mathrm{m\ω}}^{2}r\cos \mathrm{\ω}t\sin (\mathrm{\α}+\mathrm{\β}+\mathrm{\Φ})-\mathrm{mg}\sin (\mathrm{\β}+\mathrm{\Φ})]+{\mathrm{kf}}_1{v}^2\frac{\mathrm{\γ}}{2g}\tan \mathrm{\Φ}---\left(3\right)$

Condition sliding on fragment of brick:

obtained by (3) formula:

${\mathrm{m\ω}}^{2}r\cos \mathrm{\ω}t\sin (\mathrm{\α}+\mathrm{\β}+\mathrm{\Φ})\≥\mathrm{mg}\sin (\mathrm{\β}+\mathrm{\Φ})-{\mathrm{kf}}_1{v}^2\frac{\mathrm{\γ}}{2g}\sin \mathrm{\Φ}---\left(4\right)$

Cause | cos ω t| _max=1, then:

$\mathrm{\ω}\≥\sqrt{\frac{g\sin (\mathrm{\β}+\mathrm{\Φ})-{\mathrm{kf}}_1{v}^2\frac{\mathrm{\γ}}{2G}\sin \mathrm{\Φ}}{r\sin (\mathrm{\α}+\mathrm{\β}+\mathrm{\Φ})}}---\left(5\right)$

Order $K_1=\sqrt{\frac{g\sin (\mathrm{\β}+\mathrm{\Φ})-{\mathrm{kf}}_1{v}^2\frac{\mathrm{\γ}}{2G}\sin \mathrm{\Φ}}{r\sin (\mathrm{\α}+\mathrm{\β}+\mathrm{\Φ})}}$

When crank is positioned at II, III quadrant, step sieve plate 7 has acceleration upwards, and system inertia power is downward, and fragment of brick has the movement tendency of downslide, and fragment of brick is as shown in Figure 5 stressed.

Σ Y=0, namely

N ₁+W ₁-P ₁sin(90°-α-β)-G ₁cosβ＝0 (6)

Material has downward acceleration,

Because of F ₁=N ₁tan Ф, equation (6) brings equation (7) into,

$m\frac{d^{2}x}{{\mathrm{dt}}^2}=\frac{1}{\cos \mathrm{\Φ}}[G_1\sin (\mathrm{\Φ}-\mathrm{\β})-P_1\sin (\mathrm{\α}+\mathrm{\β}-\mathrm{\Φ})]-W_2\tan \mathrm{\Φ}---\left(8\right)$

The condition that fragment of brick glides: obtained by (8) formula:

$m{\mathrm{\ω}}^{2}r\cos \mathrm{\ω}t\sin (\mathrm{\α}+\mathrm{\β}-\mathrm{\Φ})\≥\mathrm{mg}\sin (\mathrm{\Φ}-\mathrm{\β})-{\mathrm{kf}}_1{v}^2\frac{\mathrm{\γ}}{2g}\sin \mathrm{\Φ}---\left(9\right)$

Cause | cos ω t| _max=1, then:

$\mathrm{\ω}\≥\sqrt{\frac{g\sin (\mathrm{\Φ}-\mathrm{\β})-{\mathrm{kf}}_1{v}^2\frac{\mathrm{\γ}}{2G}\sin \mathrm{\Φ}}{r\sin (\mathrm{\α}+\mathrm{\β}-\mathrm{\Φ})}}---\left(10\right)$

Order $K2=\sqrt{\frac{g\sin (\mathrm{\Φ}-\mathrm{\β})-{\mathrm{kf}}_1{v}^2\frac{\mathrm{\γ}}{2G}\sin \mathrm{\Φ}}{r\sin (\mathrm{\α}+\mathrm{\β}-\mathrm{\Φ})}}$

Can be obtained, as angular velocity omega >K by formula (5), (10) ₁, the fragment of brick on upper strata could the following bed of material be sliding surface, relatively and on sieve nest slides; As angular velocity omega >K ₂, relative and sieve nest glides.Obviously, K is worked as ₁>K ₂time, fragment of brick just may become descending system.

4, the motion analysis of concrete block

If the inclination angle of compass screen surface is β, the angle of support bar and level is α, the protruding angle θ of step sieve plate.X-axis is along step sieve plate direction, is just obliquely; Y-axis, perpendicular to sieve plate direction, is just upwards.When crank is positioned at II, III quadrant, sieve nest has acceleration upwards, system inertia power is downward, concrete block has the movement tendency of downslide, now sieve the thorn 73 pairs of concrete blocks thrust produced upwards and stop that it glides and by the distance of its upwardly diagrid net, concrete block is as shown in Figure 6 stressed.

Concrete block is subject to the effect of following power in XOY coordinate:

1. gravity: G ₂=Mg; 2. inertia force: P ₂=Mw ²r cos wt

3. airflow acting force 4. upper materials is to the pressure of concrete block: N ₁

5. upper materials is to the frictional force of concrete block: F ₁6. step sieve plate is to the support force of concrete block: N ₂

7. step sieve plate is to the frictional force of concrete block:

8. the thrust of sieve thorn to concrete block: F '=M ' rw ²cos wt

In formula: the weight of M-concrete block; The quality of M '-sieve thorn; f ₂the front face area of-concrete block; the internal friction angle of-concrete block

Concrete block is Relative sliding on compass screen surface, and because upper strata fragment of brick is to its effect, concrete block and compass screen surface keep in touch, so Σ Y=0, namely

N ₂+W ₂+F'cos(α+β)-P ₂cos(α+β)-G ₂cosβ-N ₁＝0 (11)

$\mathrm{\ΣX}=m\frac{d^{2}x}{{\mathrm{dt}}^2},$ Then

$M\frac{d^{2}x}{{\mathrm{dt}}^2}=F_2+F^{\′}\sin (\mathrm{\α}+\mathrm{\β})-F_1-P\sin (\mathrm{\α}+\mathrm{\β})-G_2\sin \mathrm{\β}---\left(12\right)$

Cause itself and equation (11) are substituted into equation (12),

Simplify and arrange equation (13):

Condition sliding on concrete block: cause | coswt| _max=1, then need to meet:

Order

Can be obtained, as angular velocity omega <K by formula (15) ₁', be positioned at lower floor concrete block can vibration and air-flow and sieve thorn thrust comprehensive function under on sieve nest cunning one lattice.

5, the determination of device parameter

The main working parameters of device of the present invention comprises: the Disengagement zone of stepped sieve plate and horizontal plane angle are β, and the angle of drive link and horizontal plane is α, the angle theta of sieve thorn and compass screen surface; Air velocity V; Angular speed w, the amplitude r of compass screen surface motion.Analyze from a upper joint material movement, when w meets equation (21), fragment of brick glides, and meets equation (22), concrete block moves.So for set fragment of brick, concrete block type, brick is mixed is separated that each parameter substitutes into (21), (22) have and can to realize during solution that fragment of brick is descending, mixing soil block is descending.

$\frac{\sin (\mathrm{\&Phi;}-\mathrm{\&beta;})-{\mathrm{kf}}_1{v}^2\frac{\mathrm{\&gamma;}}{2G_{1}g}\sin \mathrm{\&Phi;}}{\sin (\mathrm{\&alpha;}+\mathrm{\&beta;}-\mathrm{\&Phi;})}\&le;\frac{{\mathrm{\&omega;}}^{2}r}{g}\&le;\frac{\sin (\mathrm{\&beta;}+\mathrm{\&Phi;})-{\mathrm{kf}}_1{v}^2\frac{\mathrm{\&gamma;}}{2G_{1}g}\sin \mathrm{\&Phi;}}{\sin (\mathrm{\&alpha;}+\mathrm{\&beta;}+\mathrm{\&Phi;})}---\left(21\right)$

Computer excel macrodoce solves the main working parameters of separator, draft α=15 °, 20 °, 30 °, 45 °, °-30 °, β=5, °-45 °, θ=0, each computing of β, θ increases by 1 °, solves wind speed V, angular speed w.Order solving result represents: when α=15 °, °-14 °, β=9, and during °-15 °, θ=10, A value is 0.57-0.84, value is 0.228-0.385; When α=20 °, °-10 °, β=5, during °-14 °, θ=10, A value 0.71-0.91, brick mixed separation can be realized during value 0.126-0.286.When α value increases, A value increases, and A is the parameter characterizing wind speed, and along with A increases, V increases gradually, therefore the angle α of drive link and horizontal plane only considers to get 15 °, 20 °.

In sum, when 4 parameters: wind speed parameter value 0.57m-0.84m, transmission system kinematic parameter scalar value 0.126-0.286, angular speed K1 ' < ω <K2 ', can realize being separated of equal particle size range burned brick material and concrete block when drive link and the angle α of horizontal plane get 15 ° of < α < 20 °.

The equipment be separated with coagulation block for fragment of brick of the present invention is designed according to the series of parameters deduced out, corresponding equipment is gone out according to the condition design realizing being separated, debug between the series of parameters deduced out respectively in the equipment debugging stage, compare according to separating effect, finally obtain the equipment that fragment of brick of the present invention is separated with concrete block.

Building waste recycling material is different from soybean stone remover in grain processing, fragment of brick and concrete apparent density difference is little, frictional resistance is large, the irregular reason of brick shapes, the resistance of fragment of brick and concrete block relative sliding is larger, be directed to this and devise step sieve plate, step sieve plate is supplied to the power that concrete block moves up, and the movement of concrete block is played to the effect of promotion.

Under the promotion of step sieve plate, concrete moves up, and specific larger step sieve plate inclination angle makes fragment of brick move down along sieve plate under the promotion of partical gravity and continuous feed, is finally discharged by fragment of brick discharging opening.

In order to further illustrate technical scheme of the present invention, this gives the separator of fragment of brick and concrete block in a kind of building waste recycling material, its structure as shown in Figure 1, comprise housing 1, housing 1 internal fixtion organic frame 2, frame 2 is arranged in housing 1 by the bearing 4 being arranged on bottom; Frame 2 is provided with Link-Belt PD mechanism 6 and step sieve plate 7, as shown in Figure 4, eccentric vibration mechanism 6 to be positioned at below step sieve plate 7 and to connect step sieve plate 7 by hinged drive link, and eccentric vibration mechanism 6 connects motor, promotes step sieve plate 7 and do elliptic vibrations under the driving of motor; The comparatively low side of step sieve plate 7 is connected with fragment of brick discharging opening 8, and the higher-end of step sieve plate 7 is connected with concrete discharging opening 9, and the lower end of fragment of brick discharging opening 8 and its concrete discharging opening 9 is stretched out by housing 1.

Housing 1 above frame 2 is provided with charging aperture 11 and impurity discharging port 12; Charging aperture 11 for adding the compound after construction waste crushing in housing 1.Impurity discharging port 12 for discharging housing 1 by light components in compound from bottom to top under the wind-force effect of blast apparatus; Charging aperture 11 is just to the stage casing of step sieve plate 7, and the cross section of charging aperture 11 is rectangle, and its upper end is provided with a swash plate 14, and swash plate 14 enters step sieve plate 7 for making compound incline.The incline direction of swash plate 14 is consistent with the fragment of brick discharging direction of motion, and the selection of this feedstock direction is the motion in order to promote fragment of brick.Swash plate 14 is 45 ° with the angle of charging aperture 11 sidewall, and through test, this angle can make building waste arrive step sieve plate 7 with less impulsive force, reduces when material is toppled over mix layered destruction.

The bottom of frame 2 is fixed with blast apparatus 5; In the present embodiment, blast apparatus 5 adopts high pressure blower, and its airflow direction is centrifugal blower, and its material is aluminum, frequency 50/60Hz, voltage 110-615v, the blow rate required 40 cubic meters/hour-1134 cubic meters/hour.Blast apparatus 5, for realizing the even conveying of wind-force from bottom to top in housing 1, blows to impurity discharging port 12 by step sieve plate 7.In the present embodiment, eccentric vibration mechanism 6 adopts MICHAEL DRAKE bobbing machine SGX-38-18-230/240-6-001.

For the characteristic of building waste recycling materials processing, movable bolt is installed at the position be connected with housing 1 in concrete discharging opening 9 upper end respectively enables concrete discharging opening movable; Collapsible rack is connected with between concrete discharging opening 9 lower end and housing 1 outer wall.This kind of structure of concrete discharging opening 9 is conducive to the expansion of the stacking scope recycling aggregate finished product stockpile.

Selected accessory plate 10 is arranged on housing 1 side and is located between step sieve plate 7 and housing 1 top board, a specifically arc-shaped metallic plate, and its arc length is 30-50cm, preferred 45cm, and radian is 40-70, preferably 65 °.Selected auxiliary dress plate 10 turns for a part of wind blown by below by blast apparatus 5, and make to arrive the less fragment of brick of apparent density that concrete discharging opening 9 position vibrate with step sieve plate along the downward landing of step sieve plate, raising brick mixes separating effect.

As shown in Figure 2 and Figure 3, the screen cloth 71 place plane of step sieve plate 7 and horizontal plane angle are 15 °; Screen cloth 71 total length is 3.2m, and separate section width is 2m, and length is 2.4m; The upper hem width 1.8m of the isosceles trapezoid of concentrating portions, the wide 2m in base.The concentrating portions of screen cloth 71 and the angle of separate section elongated surfaces are 3 °, and the length of side of the sieve aperture on screen cloth 71 is 8mm.The cross sectional dimensions of sieve thorn 73 is 2mm*2mm, and length is 8mm.

When separation equipment of the present invention is applied to that brick is mixed to be separated, tackle building waste before separation and carry out pretreatment: specifically through PROCESS FOR TREATMENT such as artificial primary election, fragmentation, magnetic separation, selection by winnowing, screenings, under normal circumstances, in order to prepare reconstituted product, building waste is processed as particle diameter 0-5mm by building waste processing factory, the particle of 5-10mm, 10-20mm, 20-30mm.Specific implementation enforcement is the recycling material of the 10mm-30mm in former technique after screening, be poured over fragment of brick and concrete block mixture stockpile, lower end separation equipment of the present invention being placed in discharge belt is used for the compound after by processing and sends into charging aperture, or by manually sending into.

Operation principle of the present invention is as follows:

In the present invention, eccentric vibration mechanism 6 drives step sieve plate 7 to carry out elliptical path motion by drive link under the drive of motor.Because fragment of brick is different with the apparent density of concrete block, under the condition of the vibration that the suspending power provided at blast apparatus 5 and eccentric vibration mechanism 6 provide, realize layering.A part of wind that air blast 5 produces blows to impurity discharging port 12 direction from concrete discharging opening position with the deep bead of the angle of 30 ° ~ 45 °, the part fragment of brick at concrete discharging opening 9 place is blowed to rear end, improves separation purity.Under the eolian transportation effect of air blast, an air-flow part is through step sieve plate 7, and air-flow, by concrete discharging opening 9, is discharged by impurity discharging port 12 by a part.At the compound of air-flow from bottom to top through step sieve plate 7 upper surface, the space between compound is increased, reduce the normal pressure between the bed of material and material and frictional resistance, compound entirety is in fluidized state and is conducive to layering realization.

In identical particle size range, the proportion of material component and the different of air dynamic behaviour make under the effect of suitable vibration and flow parameter, air-flow, when through step sieve plate 7, is distributed in the compound on step sieve plate 7 under the effect of wind-force in fluidized state.After the fragment of brick that proportion is less moves to the upper strata of compound after being subject to air-flow and effect of vibration, under the partical gravity tilting to cause at step sieve plate 7 and the push effect of continuous feed, fragment of brick moves downwardly to fragment of brick discharging opening 8 along step sieve plate 7 gradually and discharges.The concrete block frictional resistance that proportion is larger is also comparatively large, and under the elliptic motion trace of step sieve plate 7 drives, by the auxiliary pushing of sieve thorn 72, concrete block moves up to concrete discharging opening 9 along step sieve plate 7 gradually and discharges.

Claims (10)

1. building waste recycles a separator for fragment of brick and concrete block in material, comprises housing, housing internal fixtion organic frame, and frame is arranged in housing by the bearing being arranged on bottom; It is characterized in that, described frame is provided with Link-Belt PD mechanism and sieve plate, eccentric vibration mechanism to be positioned at below sieve plate and to connect sieve plate by hinged drive link, and eccentric vibration mechanism connects motor, promotes sieve plate and do elliptic vibrations under the driving of motor; The comparatively low side of described sieve plate is connected with fragment of brick discharging opening, and the higher-end of sieve plate is connected with concrete discharging opening, and the lower end of fragment of brick discharging opening and its concrete discharging opening is stretched out by housing; The bottom of described frame is fixed with blast apparatus; Housing above frame is provided with charging aperture and impurity discharging port.

2. building waste as claimed in claim 1 recycles the separator of fragment of brick and concrete block in material, it is characterized in that, described sieve plate adopts step sieve plate, and described step sieve plate comprises screen cloth and is arranged on the protecting wire net of screen cloth both sides; Step sieve plate is inclined and mounted in housing, and screen cloth place plane and horizontal plane angle are 15 ~ 20 °.

3. building waste as claimed in claim 2 recycles the separator of fragment of brick and concrete block in material, it is characterized in that, described screen cloth is divided into the separate section being positioned at higher one end and the concentrating portions being positioned at lower one end, and separate section is rectangle, and concentrating portions is isosceles trapezoid; The angle of described concentrating portions and separate section elongated surfaces is 2 ° ~ 5.

4. the as claimed in claim 2 or claim 3 separator of fragment of brick and concrete block in building waste recycling material, is characterized in that, the square sieve aperture of to be the length of side the be 5 ~ 10mm of the sieve aperture on described screen cloth.

5. building waste recycles the separator of fragment of brick and concrete block in material as claimed in claim 2 or claim 3, it is characterized in that, on described step sieve plate, each co-ordination intersection is provided with sieve thorn obliquely.

6. building waste as claimed in claim 5 recycles the separator of fragment of brick and concrete block in material, it is characterized in that, described sieve thorn is 30 °-60 ° with the angle of the compass screen surface of its place part, and the length that sieve stings is 5mm ~ 10mm.

7. building waste as claimed in claim 1 recycles the separator of fragment of brick and concrete block in material, it is characterized in that, described charging aperture is just to the stage casing of step sieve plate, the cross section of charging aperture is rectangle, its upper end is provided with a swash plate, swash plate is used for that compound is inclined and enters step sieve plate, and the incline direction of swash plate is consistent with the fragment of brick discharging direction of motion; The angle of swash plate and charging aperture sidewall is 45 °.

8. building waste as claimed in claim 1 recycles the separator of fragment of brick and concrete block in material, it is characterized in that, described blast apparatus adopts high pressure blower, its operating frequency 50/60Hz.

9. building waste as claimed in claim 1 recycles the separator of fragment of brick and concrete block in material, and it is characterized in that, the position be connected with housing in described concrete discharging opening upper end is provided with movable bolt, enables concrete discharging opening movable; Collapsible rack is connected with between concrete discharging opening lower end and housing exterior walls.

10. building waste as claimed in claim 1 recycles the separator of fragment of brick and concrete block in material, it is characterized in that, housing side between step sieve plate and cover top plate is provided with selected accessory plate, described selected accessory plate adopts arc-shaped metallic plate, its arc length is 30-50cm, and radian is 40-70.