CN112474321A - Vibrating screen body and vibrating screen - Google Patents

Abstract

The invention discloses a vibrating screen body which comprises screen teeth arranged in a three-dimensional manner, wherein the screen teeth are cylindrical and keep the axes consistent with the conveying direction, the front ends of the screen teeth along the conveying direction are free ends, the other ends of the screen teeth are fixed ends, at least two layers of the screen teeth are arranged in the vibrating direction, and the centers of all the screen teeth of the screen teeth arranged in the three-dimensional manner are sequentially connected to form a non-planar screening surface; according to the vibrating screen body, the moving acceleration and the blanking speed of each substance generated on the three-dimensional screen teeth are different according to the different shapes of the foamed concrete and the light substance garbage mixed in the foamed concrete, and finally the substances are separated according to the different blanking positions at the outlet of the vibrating screen, so that the foamed concrete and the light substance garbage mixed in the foamed concrete are screened and separated, and the screening efficiency is high.

Description

Vibrating screen body and vibrating screen

Technical Field

The invention belongs to the field of screening and sorting equipment, and particularly relates to a vibrating screen body and a vibrating screen.

Background

In the treatment of construction waste and decoration waste, various wastes of different volumes, different qualities, different purposes, different properties, different densities and the like need to be sorted. The most common construction waste generally mainly comprises aggregate, silt, foamed concrete and light garbage, the light garbage mainly comprises waste substances such as rags, paper sheets, plastics, wood chips, branches and the like which cannot be utilized, and the foamed concrete, the aggregate, the silt and the like can be recycled, so that the cost is saved, and the environmental pressure is reduced.

Generally, since construction and decoration garbage contains a large amount of foamed concrete, and the foamed concrete is incombustible and can be used as a raw material or an auxiliary material of other construction materials again, the most common method in the construction and decoration garbage is to sort the unusable garbage in construction aggregate, such as sand, template, ironwork, steel bar, rag, paper, plastic and the like, from the recyclable aggregate, such as the foamed concrete, by various methods, such as water separation, air separation, magnetic separation, vibration and the like. However, since the foamed concrete contains a large amount of bubbles and has a low density, it is difficult to separate and sort light impurities such as paper sheets, rags, plastic sheets, wood chips and the like from the foamed concrete, which hinders the recycling of the foamed concrete.

In order to solve the problems, the foamed concrete is crushed by utilizing the characteristic of high brittleness of the foamed concrete, and then the foamed concrete is subjected to water separation. The volume ratio of bubbles in each foamed concrete particle is reduced, the density of the foamed concrete particle is increased compared with that of foamed concrete, namely, the foamed concrete particle can sink in water, and light substance impurities mixed in the foamed concrete are separated by utilizing the buoyancy of the water.

In the above-mentioned prior art's scheme, there are the sorting rate low, and equipment structure is complicated, and problem such as with high costs still can cause a large amount of water waste and pollution, energy-concerving and environment-protective not enough.

Disclosure of Invention

The first objective of the present invention is to provide a vibrating screen body, which is separated according to the difference in the shapes of foamed concrete and light garbage mixed therein, resulting in the difference in the motion acceleration and the blanking speed of each substance generated on the three-dimensional screen teeth, and finally resulting in the difference in the blanking position at the outlet of the vibrating screen, so as to complete the screening and separation of the foamed concrete and the light garbage mixed therein, and the screening efficiency is high.

Another object of the present invention is to provide a vibrating screen, which is provided with a vibrating screen body having screen teeth arranged in a three-dimensional manner, so as to separate foamed concrete from garbage such as broken cloth, paper, plastic, wood chips, branches, wood strips, etc. mixed in the foamed concrete, thereby obtaining foamed concrete with high utilization rate and clean screening.

The invention relates to a vibrating screen body, which comprises screen teeth which are arranged in a three-dimensional manner, wherein the screen teeth are cylindrical, the axis of the screen teeth is consistent with the conveying direction, the front ends of the screen teeth along the conveying direction are free ends, the other ends of the screen teeth are fixed ends, at least two layers of the screen teeth are arranged in the vibrating direction, and the centers of all the screen teeth of the screen teeth which are arranged in the three-dimensional manner are sequentially connected to form a non-planar screening surface.

Preferably, the sieve tray comprises a sieve tooth mounting plate, a sieve tooth mounting hole is formed in the front side surface of the sieve tooth mounting plate along the conveying direction, the fixed end of the sieve tooth penetrates through the sieve tooth mounting hole and is arranged on the lower portion of the sieve tooth mounting plate, and the sieve tooth can move in the sieve tooth mounting hole to adjust the length of the sieve tooth participating in the sieving work; and the two side surfaces of the sieve tooth mounting plate along the conveying direction are respectively provided with a mounting plate.

Preferably, the screen teeth may be, but not limited to, rectangular, kidney-shaped, circular, and oval in cross-section.

Preferably, the centers of the screen teeth which are arranged in a three-dimensional manner are sequentially connected to form a continuous sawtooth-shaped screening surface.

Preferably, the centers of the screen teeth which are arranged in a three-dimensional manner are sequentially connected to form a continuous trapezoidal wave screening surface.

Preferably, the centers of all the screen teeth of the screen teeth which are arranged in a three-dimensional manner are sequentially connected to form a continuous arc-shaped wave screening surface.

A vibrating screen adopts the vibrating screen body; still include bank of screens and vibration mechanism, vibration screen frame demountable installation in on the bank of screens and by vibration mechanism drive bank of screens realizes the vibration, accomplishes the screening.

Preferably, the shale shaker body slope sets up, shale shaker body inclination is adjustable, and the sieve tooth mounting panel is high-end, the free end of the sieve tooth of shale shaker body is the low side.

Preferably, at least two vibrating screen bodies on the screen frame are continuously arranged along the conveying direction and are arranged in an upper-layer lap joint mode and a lower-layer lap joint mode, and the screen tooth mounting plate of the former vibrating screen body is kept to be arranged on the lower portion of the free end of the screen tooth of the latter vibrating screen body; the vibrating mechanism comprises a damping spring connected to the bottom of the sieve frame and a vibrating drive arm connected with the sieve frame, an eccentric wheel is connected to the vibrating drive arm, and the eccentric wheel is connected with a drive motor through a belt.

The vibrating screen body of the technical scheme of the invention realizes the screening and separation principles of the foamed concrete and the light garbage mixed in the foamed concrete, and comprises the following components in parts by weight:

firstly, it is clear that the foamed concrete is generally approximately spherical or ellipsoidal in appearance shape, or has a circular or approximately circular cross section in at least one direction, and light garbage mixed in the foamed concrete is generally light in weight, and mostly is sheet rags, paper sheets, plastic sheets, or strip-shaped templates, branches, wooden sticks and the like, and the light garbage is difficult to roll, jump and other motion states in motion. The technical scheme is that the movement difference of the foamed concrete and the light garbage during screening is utilized for screening.

When the foamed concrete passes through the screen body which is arranged in a three-dimensional manner, the foamed concrete rolls on the screening surface and even jumps, so that the foamed concrete has a higher forward movement speed and even has a higher acceleration to move forward, and when the foamed concrete moves to the outlet of the vibrating screen, the foamed concrete is thrown forwards at a higher initial speed, so that the foamed concrete can fall at a position far away from the outlet of the vibrating screen.

When the light garbage passes through the screen body which is arranged in a three-dimensional shape, the light garbage cannot roll due to the fact that the light garbage is in a sheet shape or a strip shape or is light in weight, and cannot have a large movement speed, the light garbage only moves forwards along the screen teeth, the movement speed is low, and when the light garbage moves to the outlet of the vibrating screen, the light garbage can fall to a falling point which is close to the outlet of the vibrating screen, and separation of the light garbage from the foamed concrete is achieved.

The vibrating screen body of the technical scheme of the invention has the beneficial effects that:

1. the screen teeth in the vibrating screen body are arranged in a three-dimensional shape, at least two layers of screen teeth are arranged in the vibrating direction, the screening surface formed by the screen teeth is a non-plane surface, when the foamed concrete passes through the screen surface, a larger forward moving speed can be obtained, the light garbage cannot roll, and the like, the foamed concrete and the light garbage move forward only along the non-plane screening surface formed by the screen teeth, the speed is low, so that the falling points of the foamed concrete and the light garbage thrown outwards at the outlet of the vibrating screen are different, and the screening and the separation of the foamed concrete and the light garbage are realized.

2. The regulation that the sieve tooth can remove the effective screening length of realization sieve tooth in the sieve tooth mounting hole adapts to different shale shakers and uses, provides bigger amplitude range.

The vibrating screen has the beneficial effects that: simple structure can realize the separation of foaming concrete and the light material rubbish of mixing in it fast.

Drawings

Figure 1 is a perspective view of a vibrating screen body according to the present invention,

figure 2 is a schematic structural view of an embodiment of a vibrating screen body,

figure 3 is a schematic structural view of a second embodiment of the vibrating screen body,

figure 4 is a schematic view of three structures of an embodiment of a vibrating screen body,

figure 5 is a schematic diagram of a fourth embodiment of a shaker body,

figure 6 is a schematic structural diagram of a fifth embodiment of the vibrating screen body,

figure 7 is a schematic diagram of a six-configuration vibrating screen body embodiment,

figure 8 is a schematic diagram of a seventh construction of an embodiment of a shaker body,

figure 9 is a schematic structural view of an eighth embodiment of the vibrating screen body,

figure 10 is a schematic view of a vibrating screen construction,

fig. 11 is a partial structural view of a vibrating screen.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

First, it is explained that the front end, the rear end, the tail end and the like mentioned in the technical scheme are all according to the conveying direction of the vibrating screen, on the premise of being consistent with the conveying direction of the material, the material is conveyed from the rear end or the tail end to the front end, and the vertical direction perpendicular to the conveying direction is the vibrating direction.

As shown in fig. 1, a vibrating screen body according to a technical solution of the present invention, a vibrating screen body 1 includes a screen tooth 12 arranged in a three-dimensional shape, the screen tooth 12 is cylindrical and keeps an axis consistent with a conveying direction, a front end of the screen tooth along the conveying direction is a free end (i.e., a front end along a direction of an arrow B in fig. 10 is a free end), and the other end is a fixed end. The screen teeth 12 are provided with at least two layers in the vibrating direction (the direction indicated by the arrow a in fig. 10). The centers of all the screen teeth of the screen teeth which are arranged in a three-dimensional way are sequentially connected to form a non-planar screening surface, and the positions and the heights of at least two adjacent screen teeth in the screen teeth 12 in the vibration direction are different. At least one group of two adjacent screen teeth in the screen teeth arranged in a three-dimensional manner on the vibrating screen body 1 is provided with a transverse gap D1 in the direction perpendicular to the vibrating direction, or at least one group of two adjacent screen teeth in the screen teeth arranged in a three-dimensional manner is provided with a vertical gap D2 in the vibrating direction. The transverse gap D1 and the vertical gap D2 have the same structure, so that the screening of the light material impurities mixed in the foamed concrete of the construction waste in the technical solution can be realized, but it is noted that the arrangement of the transverse gap D1 or the vertical gap D2 is mainly formed by the screen teeth which form the non-planar screening surface, and is not used for screening the light material waste or the foamed concrete from the transverse gap D1 or the vertical gap D2. In the concrete screening process, tiny substances fall down from the transverse gap D1 or the vertical gap D2, so that partial tiny light substances are screened, and the foamed concrete does not fall down generally.

Based on the technical scheme, the principle that the local vibrating screen body is used for screening is as follows: different vibration frequencies and amplitudes are obtained in the vibration through the shape and the radian of the screen surfaces of the different screen teeth 12, and the different vibration frequencies and amplitudes can provide different accelerations for substances (foamed concrete and light substance garbage) with different shapes and densities in mixed materials (building garbage and decorative garbage). When the foamed concrete with the shape close to a spherical shape or an ellipsoidal shape or the section in at least one direction of the foamed concrete is circular or close to a circular shape and is conveyed on a vibrating screen body vibrating up and down, the foamed concrete can roll, jump and the like, so that the foamed concrete can have a larger forward movement speed in the vibrating conveying process, and when the foamed concrete is conveyed out of the vibrating screen in a vibrating manner, the foamed concrete has a larger initial speed to perform horizontal throwing movement, and the falling point of the foamed concrete outside the vibrating screen is far away from the outlet position of the vibrating screen. The light garbage mixed in the foamed concrete is generally in a sheet or strip shape due to the shape and light weight, can not roll or jump like the foamed concrete in the vibration conveying process, can not obtain a larger forward conveying speed, and thus, when the garbage is conveyed out of the vibrating screen in a vibration mode, the falling point of the garbage is closer to the outlet of the vibrating screen. Namely, the screening and the separation are realized according to different falling points of the foamed concrete and the light garbage which are conveyed out of the vibrating screen in a vibrating way.

According to the principle of above-mentioned screening and separation, effectually avoided carrying out the breakage to the foaming concrete as among the prior art, then carry out operations such as water selection, avoided going out the foaming concrete along with the screening of light material rubbish problem, the effectual recycle that improves building rubbish and decoration rubbish is rateed, and the energy-conserving cost is reduced, and has avoided the use and the waste of a large amount of water resources of selecting separately.

In the upper stage, the screen teeth 12 are cylindrical, and the front end along the conveying direction is a free end, i.e., the free end is far away from the screen tooth mounting plate 11. The sieve tooth 12 is in the vibration, keeps away from sieve tooth mounting panel 11 position more, and sieve tooth 12 amplitude is bigger, and great amplitude can further influence the vibratory feed speed of foaming concrete, promotes foaming concrete and appears beating the roll, and speed is bigger and bigger, and the screening of foaming concrete is realized to the progress one. And the amplitude is increased, so that the light material garbage in a sheet shape or a strip shape can be prevented from moving forwards, and meanwhile, the light material garbage in a strip shape with a larger length can be straightened, so that the light material garbage in a strip shape is conveyed forwards in parallel to the conveying direction.

As shown in fig. 1, the vibrating screen body 1 further includes a screen tooth mounting plate 11, a screen tooth mounting hole 14 is formed in a front side surface of the screen tooth mounting plate 11 along the conveying direction, and one end of the screen tooth 12 passes through the screen tooth mounting hole 14 and is placed below the screen tooth mounting plate 11. The screen teeth 12 are movable within the screen tooth mounting holes 14 to effect adjustment of the length of the screen teeth involved in the screening operation. The screen tooth mounting plates 11 are provided with mounting plates 13 on both side surfaces thereof in the conveying direction (the direction indicated by the arrow B in fig. 10).

The setting of above-mentioned structure has improved the adaptability of shale shaker body 1, and the local shale shaker body 1 can satisfy the sorter of different models or different foaming concrete's screening requirement. And simultaneously, the vibration amplitude adjusting device also meets the requirements on different vibration amplitudes, and can also be obtained by changing the length of the sieve teeth 12 if the vibration amplitude is changed. And the larger the length of the sieve teeth 12 positioned outside the sieve tooth mounting plate 11 is, the larger the vibration amplitude during vibration screening is, the more the forward conveying speed of the foamed concrete can be promoted, and the screening and separation of the foamed concrete and the light garbage are further realized.

In this technical scheme, through 12 length of different sifter teeth and different sifter shapes and radians, obtain different vibration frequency and amplitude in the vibration, different vibration frequency and amplitude can provide different accelerations to the material (foaming concrete and light material rubbish) of different shapes and density in the mixed materials (building rubbish and decoration rubbish). Because the foaming concrete in the mixed material is irregular round or oval basically, under the condition that the sieve tooth provides the vibrational potential energy for it, its acceleration can be faster and faster, and at last the discharge gate blanking of shale shaker can be far away from the sieve. And the light material garbage such as wood strips, paper sheets, plastic sheets and the like in the mixed material is mostly in a strip shape or a sheet shape, can move on the wavy screening surface of the screen body or the groove body of the screening surface, and basically does not generate a jumping forward gesture, so the potential energy acceleration is very low, the moving speed of the screened material is also very low compared with that of the foamed concrete, the falling point of the screened material is close to the screen body due to the movement gesture, and finally the separation between the foamed concrete and the light material garbage is realized. The mixed material also contains a part of lighter materials such as plastic skins and broken cloth, the materials can generate certain floating force through the motion posture after vibration, the screening running speed is lower, no potential energy is generated, and the final blanking point is closest to the screen body. The non-planar sieve surface can also straighten the motion posture of the strip-shaped material, reduce the motion potential energy of the strip-shaped material and enable the final falling point of the strip-shaped material to be close.

As seen in fig. 1-9, the screen teeth 12 may be seen to be, but are not limited to, rectangular, kidney-shaped, circular, and oval in cross-section. The screening method can be selected according to different characteristics of the foamed concrete and the light garbage so as to ensure that the foamed concrete and the light garbage are screened according to shape characteristics and the like of the foamed concrete and the light garbage.

As shown in fig. 2 to 9, 8 different vibrating screen body 1 structures are shown, namely 8 embodiments of the vibrating screen body 1.

In the embodiments of 3, as shown in fig. 2 to 4, the centers of the sieve teeth arranged in a three-dimensional manner on the vibrating screen body 1 are sequentially connected to form a continuous zigzag toothed sieving surface.

In fig. 2, two layers of screen teeth are arranged, and the cross sections of the screen teeth are rectangular, but can also be kidney-shaped, circular or oval. The adjacent upper screen teeth and the lower screen teeth are respectively provided with gaps in the horizontal direction and the vertical direction, namely, a vertical gap D2 and a transverse gap D1 are respectively arranged between two adjacent screen teeth in the upper screen teeth and the lower screen teeth. The screen teeth form a continuous regular sawtooth-shaped screening surface. During screening, the foamed concrete and the light garbage mixed in the foamed concrete are conveyed forwards in a vibrating mode on the screen teeth, the foamed concrete rolls or jumps forwards under the vibrating action of the screen teeth to obtain a large forward moving speed, and the light garbage slowly moves forwards along with the vibration of the screen teeth, so that the foamed concrete and the light garbage at the outlet of the vibrating screen can obtain different drop points due to different speeds, and separation is achieved.

In fig. 3, three layers of screen teeth are provided, the cross section of the screen teeth is waist-shaped, but the screen teeth can also be rectangular, circular or oval, adjacent upper layer screen teeth and lower layer screen teeth respectively have gaps in the vertical direction, namely vertical gaps D2, and have no gaps in the horizontal direction, namely no transverse gaps D1. And a gap is reserved between every two adjacent screen teeth on the same layer. The screen teeth likewise form a toothed screening surface in the form of a continuous sawtooth. During screening, the screening principle is the same as the screening mode of the embodiment in FIG. 2.

In fig. 4, four layers of screen teeth are arranged, and the cross section of the screen teeth is cylindrical, but the screen teeth can also be in the shape of screen teeth as in fig. 2 or 3, or in the shape of kidney, circle or ellipse. The screen teeth likewise form a toothed screening surface in the form of a continuous sawtooth. And a transverse gap D1 is formed between two adjacent screen teeth. During screening, the foamed concrete of the construction waste and the light material waste mixed in the foamed concrete are conveyed forwards on the screen teeth, but the foamed concrete and the light material waste obtain different falling points at the outlet position of the vibrating screen due to different forward speeds, so that screening and separation are realized.

In the embodiments of 3, as shown in fig. 5 to 7, the centers of the sieve teeth arranged in a three-dimensional manner on the vibrating screen body 1 are sequentially connected to form a continuous regular trapezoidal wave sieving surface.

In fig. 5 to 7, the sieve teeth are respectively provided with two layers, and two sieve teeth are respectively and continuously arranged on the upper layer sieve teeth or the lower layer sieve teeth or the upper layer sieve teeth and the lower layer sieve teeth. In the vibrating screen body 1, there are a lateral gap D1 and a vertical gap D2.

In the embodiment 2, as shown in fig. 8 and 9, the centers of the sieve teeth arranged in a three-dimensional manner on the vibrating sieve body 1 are sequentially connected to form a continuous regular arc-shaped wavy sieving surface. In the two embodiments, the sieve teeth are provided with more than three layers, the sieve teeth sequentially and continuously form arc wavy surfaces, and the distance between the sieve teeth of the vibrating screen body 1 is the transverse gap D1 and the vertical gap D2.

It should be noted that the description of the lateral gap D1 or the vertical gap D2 in the above embodiments is only for further description and limitation of the structure and position of the screen teeth, and is not provided for the foamed concrete and the light garbage to fall from the lateral gap D1 or the vertical gap D2. The transverse gap D1 or the vertical gap D2 should be sized small to avoid small pieces of foamed concrete from falling through the transverse gap D1 or the vertical gap D2. Of course, in the specific screening, a small amount of fine and tiny light garbage, such as paper sheets, plastic sheets and the like, falls down from the transverse gap D1 or the vertical gap D2, so that the screening and the separation between the light garbage and the foamed concrete can be realized.

As shown in fig. 10 and 11, the vibrating screen specifically comprises a screen frame 21, a vibrating screen body 1 mounted on the screen frame 21, and a vibrating mechanism. The vibrating screen body 1 is detachably mounted on the screen frame 21 and is driven by the vibrating mechanism to drive the screen frame 21 to realize vibration, and screening is completed. The inclined setting of shale shaker body 1, 1 inclination of shale shaker body is adjustable, and sieve tooth mounting panel 11 is the high-end, and the sieve tooth 12 of shale shaker body 1 is the low side.

Based on the technical scheme, the vibrating mechanism drives the screen frame 21 and the vibrating screen body 1 on the screen frame to vibrate, so that the screened materials entering the vibrating screen are conveyed forwards along with the vibration of the screen teeth when passing through the inclined vibrating screen body 1, and the conveying direction is along the direction of an arrow B in fig. 10. The structure that sieve tooth 12 was three-dimensional shape setting on the shale shaker body 1 for shale shaker body 1 is in the vibration, and different positions have different amplitudes on the sieve tooth 12, make the foaming concrete who carries out vibratory feed on the sieve body and mix the light material rubbish in it obtain different forward conveying speed respectively, finally fall in the exit of shale shaker, and the drop point is different, and the shape is close spherical drop point more far away, can realize the screening and the separation of foaming concrete and light material rubbish. Meanwhile, the vibrating screen body 1 realizes screening, and has the advantages of simple operation, energy saving, cost reduction and environmental protection.

As shown in fig. 10 and 11, at least two vibrating screen bodies 1 are continuously arranged on the screen frame 21 along the conveying direction, and are arranged in an upper-lower layer overlapping manner, and the screen tooth mounting plate of the former vibrating screen body is kept to be arranged below the free ends of the screen teeth of the latter vibrating screen body. The vibration mechanism comprises a damping spring 22 connected to the bottom of the sieve frame 21 and a vibration driving arm 23 connected to the sieve frame 21. The vibration driving arm 23 is connected with an eccentric wheel 24, and the eccentric wheel 24 is connected with a driving motor through a belt. The driving motor drives the eccentric wheel 24 to rotate, amplitude and vibration frequency are provided for the whole vibrating screen, and the screen frame 21 is vibrated up and down in a reciprocating mode along the direction of an arrow A in the drawing 10 by combining with the damping spring 22. In the vibration of the screen frame 21, the screen teeth 12 of the vibrating screen body 1 synchronously vibrate up and down in the direction of an arrow A in fig. 10 to realize screening.

As shown in fig. 11, a schematic diagram of the position of the falling point of the foamed concrete and the light garbage after being screened by the vibrating screen is shown. Among the upper segment technical scheme, the shale shaker body 1 that sets up in succession, and be upper and lower floor's overlap joint setting, the light material rubbish of foaming concrete and mixture, when getting into next shale shaker body by last shale shaker body on, receive certain impact force when falling down on next shale shaker body 1 for conglomeration, the foaming concrete of cohesion and mixing can be by the impact scattering, realize further sorting.

In the vibrating screen of the technical scheme, different vibration frequencies and amplitudes are obtained in vibration through different lengths of the screen teeth 12 and different screen surface shapes and radians, and different acceleration is provided for substances (foamed concrete and light substance garbage) with different shapes and densities in mixed materials (building garbage and decorative garbage) through different vibration frequencies and amplitudes. Because the foaming concrete in the mixed material is irregular round or oval basically, under the condition that the sieve tooth provides the vibrational potential energy for it, its acceleration can be faster and faster, and at last the discharge gate blanking of shale shaker can be far away from the sieve. And the light material garbage such as wood strips, paper sheets, plastic sheets and the like in the mixed material is mostly in a strip shape or a sheet shape, can move on the wavy screening surface of the screen body or the groove body of the screening surface, and basically does not generate a jumping forward gesture, so the potential energy acceleration is very low, the moving speed of the screened material is also very low compared with that of the foamed concrete, the falling point of the screened material is close to the screen body due to the movement gesture, and finally the separation between the foamed concrete and the light material garbage is realized. The mixed material also contains a part of lighter materials such as plastic skins and broken cloth, the materials can generate certain floating force through the motion posture after vibration, the screening running speed is lower, no potential energy is generated, and the final blanking point is closest to the screen body. The non-planar sieve surface can also straighten the motion posture of the strip-shaped material, reduce the motion potential energy of the strip-shaped material and enable the final falling point of the strip-shaped material to be close.

It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art and related arts based on the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.

Claims (9)

1. The utility model provides a vibrating screen body, its characterized in that, is including the sieve tooth that is three-dimensional form setting, the sieve tooth is the cylindricality and keeps the axis unanimous with direction of delivery, the sieve tooth is the free end along direction of delivery's front end, and the other end is the stiff end, the sieve tooth is provided with at least two-layer along the direction of vibration, and the center of each sieve tooth that is three-dimensional form setting links in proper order and forms a nonplanar screening face.

2. The vibrating screen body according to claim 1, further comprising a screen tooth mounting plate, wherein a screen tooth mounting hole is formed in a front side surface of the screen tooth mounting plate along the conveying direction, a fixed end of the screen tooth penetrates through the screen tooth mounting hole and is arranged on the lower portion of the screen tooth mounting plate, and the screen tooth can move in the screen tooth mounting hole to adjust the length of the screen tooth participating in screening work; and the two side surfaces of the sieve tooth mounting plate along the conveying direction are respectively provided with a mounting plate.

3. The vibratory screen body of claim 1, wherein the screen teeth cross-section may be, but is not limited to, rectangular, kidney, circular, and oval.

4. The vibratory screen body of claim 1, wherein the centers of the teeth of the three-dimensionally arranged teeth are sequentially connected to form a continuous saw-tooth-shaped screening surface.

5. The vibratory screen body of claim 1, wherein the centers of each of the teeth of the three-dimensionally arranged teeth are sequentially connected to form a continuous trapezoidal wave screening surface.

6. The vibratory screen body of claim 1, wherein the centers of each of the teeth of the three-dimensionally arranged teeth are sequentially connected to form a continuous arcuate undulating screening surface.

7. A vibrating screen, characterized in that a vibrating screen body according to any one of claims 1 to 6 is used; still include bank of screens and vibration mechanism, vibration screen frame demountable installation in on the bank of screens and by vibration mechanism drive bank of screens realizes the vibration, accomplishes the screening.

8. The vibratory screen of claim 7, wherein the vibratory screen body is angled, the angle of inclination of the vibratory screen body is adjustable, the screen tooth mounting plate is high-end, and the free ends of the screen teeth of the vibratory screen body are low-end.

9. The vibrating screen of claim 8, wherein at least two vibrating screen bodies are continuously arranged on the screen frame along the conveying direction, the vibrating screen bodies are arranged in an upper-lower layer overlapping manner, and the screen tooth mounting plate of the former vibrating screen body is kept below the free ends of the screen teeth of the latter vibrating screen body;

the vibrating mechanism comprises a damping spring connected to the bottom of the sieve frame and a vibrating drive arm connected with the sieve frame, an eccentric wheel is connected to the vibrating drive arm, and the eccentric wheel is connected with a drive motor through a belt.

Images