CN220991852U - Incinerator slag screening device - Google Patents

Abstract

The utility model discloses an incinerator slag screening device which is arranged between a slag dragging machine and a magnetic separator and comprises a first conveying unit and a screening unit; the first end of the first conveying unit is arranged below the discharge hole of the slag dragging machine and used for receiving slag, and the second end of the first conveying unit is connected with the magnetic separator so as to convey the slag to the magnetic separator; the screening unit comprises a first screen plate arranged between the discharge port of the slag dragging machine and the first end, and the first screen plate is provided with a plurality of first through holes for screening out first slag with the grain diameter larger than the aperture of the first through holes. According to the utility model, the screening unit is arranged between the discharge hole of the slag dragging machine and the first end of the first conveying unit, and the slag with the grain diameter larger than the pore diameter of the through hole of the screen plate, namely the massive slag, is screened by the screen plate of the screening unit, so that the impact on the first conveying unit caused by the falling of the massive slag can be effectively avoided, and the service life of the first conveying unit is prolonged.

Description

Incinerator slag screening device

Technical Field

The utility model relates to the technical field of incinerator slag treatment, in particular to an incinerator slag screening device.

Background

Along with the development of economy, environmental awareness of people is continuously enhanced. The iron barrel which is stained with dangerous waste can be used for subsequent disposal after being burnt, and the burnt slag is fished out by a slag scooping machine and then is conveyed to a magnetic separator for magnetic separation, so that the magnetic mineral in the slag is separated from the waste and then is treated.

However, the size of the slag generated after incineration is difficult to grasp, and part of the large slag directly falls onto the conveying equipment after being discharged through the discharge port of the slag dragging machine, so that the conveying equipment is subjected to large impact and even damage, and the service life of the conveying equipment is further influenced.

Disclosure of utility model

Based on the above, the main object of the present utility model is to provide an incinerator slag screening device, which can avoid the impact of a conveying unit caused by the falling of large slag and improve the service life of conveying equipment.

In order to achieve the above object, the present utility model provides an incinerator slag screening device, which is disposed between a slag dragging machine and a magnetic separator, comprising: the first end of the first conveying unit is arranged below the discharge hole of the slag dragging machine and is used for receiving slag, and the second end of the first conveying unit is connected with the magnetic separator so as to convey the slag to the magnetic separator; and the screening unit comprises a first screen plate arranged between the discharge hole and the first end of the slag dragging machine, and a plurality of first through holes are formed in the first screen plate and used for screening out first slag with the grain diameter larger than the aperture of the first through holes.

Optionally, the magnetic separator further comprises a crushing unit and a second conveying unit, wherein the crushing unit is used for receiving and crushing the first slag, and the first slag is crushed by the crushing unit and then conveyed to the magnetic separator or the first conveying unit by the second conveying unit.

Optionally, the first screen plate is inclined towards the crushing unit so that the first slag rolls off from the first screen plate to the crushing unit.

Optionally, the screening unit further comprises a second screen plate, and the second screen plate is arranged below the first screen plate; the second sieve plate is provided with a plurality of second through holes for sieving out second slag with the particle size larger than the aperture of the second through holes; the aperture of the second via hole is smaller than that of the first via hole.

Optionally, the second screen deck is inclined towards the first conveyor unit such that the second slag rolls off from the second screen deck to the first conveyor unit.

Optionally, the device further comprises a first damping unit, wherein the first damping unit is arranged on the circumference of the first screen plate and/or the second screen plate and is used for damping vibration generated when the slag falls to the screening unit.

Optionally, guide walls are respectively arranged on two lateral sides of the first screen plate and/or the second screen plate, and the guide walls are perpendicular to the plate surfaces of the screen plates where the guide walls are arranged.

Optionally, the screening unit further includes a box-shaped shell, the box-shaped shell is vertically hollow, the first screen plate and/or the second screen plate are fixedly connected to the inside of the box-shaped shell, the side wall of the box-shaped shell is provided with a first slag discharge port corresponding to the first screen plate, and/or a second slag discharge port corresponding to the second screen plate.

Optionally, the device further comprises a second damping unit, wherein the second damping unit is arranged at the bottom of the box-shaped shell and is used for damping vibration generated when the slag falls to the screening unit.

Optionally, the first conveyor unit is provided with a load cell for monitoring the weight of the conveyed material.

According to the technical scheme, the screening unit is arranged between the discharge hole of the slag dragging machine and the first end of the first conveying unit, the large-block slag which is slag with the grain diameter larger than the pore diameter of the through hole of the screening plate is screened by the screening plate of the screening unit, so that impact on the first conveying unit caused by falling of the large-block slag can be effectively avoided, and the service life of the first conveying unit is prolonged.

The foregoing description is only an overview of the technical solutions of the embodiments of the present utility model, and may be implemented according to the content of the specification, so that the technical means of the embodiments of the present utility model can be more clearly understood, and the following specific embodiments of the present utility model are given for clarity and understanding.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a screening device for incinerator slag according to an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

Fig. 3 is a schematic structural view of another incinerator slag screening device according to an embodiment of the present utility model.

Icon:

1-first conveying unit, 2-screening unit, 21-first sieve plate, 211-first through hole, 22-second sieve plate, 221-second through hole, 23-box shell, 231-first slag discharge port, 232-second slag discharge port, 3-crushing unit, 4-second conveying unit, 51-first damping unit, 52-second damping unit, 6-vibrating unit, 7-guide wall, 8-weighing sensor, 100-slag conveyor and 200-magnetic separator.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it is to be understood that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs unless explicitly defined and defined otherwise. Where the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the same sense as the figures or are conventional in the practice of the utility model, they are merely used in describing the utility model and to simplify the description, rather than to indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

In the description of the present utility model, it should also be noted that the terms "disposed," "mounted," "connected," and "connected" as used herein are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" is presented throughout this document, it is intended to include three schemes in parallel, taking "a and/or B" as an example, including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Referring to fig. 1 to 3, an embodiment of the present utility model provides an incinerator slag screening device, which is disposed between a slag extractor 100 and a magnetic separator 200, and includes a first conveying unit 1 and a screening unit 2, wherein a first end of the first conveying unit 1 is disposed below a discharge port of the slag extractor 100, and is used for receiving slag extracted by the slag extractor 100, and a second end of the first conveying unit 1 is connected with the magnetic separator 200 to convey slag to the magnetic separator 200; the screening unit 2 comprises a first screen plate 21 arranged between a discharge hole of the slag conveyor 100 and a first end of the first conveying unit 1, a plurality of first through holes 211 are formed in the surface of the first screen plate 21, slag with the particle size smaller than the aperture of the first through holes 211 can continuously drop downwards through the first through holes 211, and slag with the particle size larger than the aperture of the first through holes 211, namely first slag, is blocked by the first screen plate 21 and stops falling, so that impact on the first conveying unit 1 caused by falling of the first slag, namely massive slag, is avoided, and the service life of the first conveying unit 1 is prolonged.

It will be appreciated that the above-mentioned first slag and the later-mentioned second slag, which are herein extended to larger-sized large-sized slag and smaller-sized small-sized slag, have no dimensional description of their specific particle sizes or diameters, and can be set and selected according to specific requirements in actual production. In the embodiment of the present utility model, the first via hole 211 may be set to have a hole diameter of 100mm, the second via hole 221 may be set to have a hole diameter of 50mm, the first slag may refer to slag particles having a diameter of more than 100mm, and the second slag may refer to slag particles having a diameter of less than 100mm and more than 50 mm.

Further, as shown in fig. 1 and 2, the incinerator slag screening device further includes a crushing unit 3 and a second conveying unit 4, the crushing unit 3 may be a hammer crusher or a roller crusher, and is used for receiving and crushing the first slag, the first slag carried on the first screen 21 is manually or mechanically transferred into the crushing unit 3 to be crushed into the second slag or the slag with smaller particle size than the second slag, the discharge hole of the crushing unit 3 is connected with the second conveying unit 4, and the crushed slag is conveyed to the magnetic separator 200 by the second conveying unit 4 to be magnetically separated, or conveyed to the first conveying unit 1 to be conveyed to the magnetic separator 200 by the first unit to be magnetically separated, so that the magnetic minerals in the slag are separated from the waste.

Further, as shown in fig. 1 and 2, the first screen plate 21 may be obliquely arranged towards the crushing unit 3, and the feed inlet of the crushing unit 3 may be disposed below the lower end of the first screen plate 21, so that the first slag carried on the first screen plate 21 rolls down from the inclined surface of the first screen plate 21 into the crushing unit 3 based on self weight, thereby reducing the steps of manual or mechanical transfer, being convenient and fast, and saving cost.

Due to the arrangement of the screening unit 2, the distance between the discharge hole of the slag extractor 100 and the first conveying unit 1 is increased, and the second slag, i.e. the larger slag, directly falls from the discharge hole of the slag extractor 100 to the first conveying unit 1, and the impact on the first conveying unit 1 is also possible, so further, as shown in fig. 1 and 2, the screening unit 2 further comprises a second screen plate 22, and the second screen plate 22 is arranged below the first screen plate 21; the second sieve plate 22 is provided with a plurality of second through holes 221, the aperture of the second through holes 221 is smaller than that of the first through holes 211, the second sieve plate is used for sieving second slag with the grain diameter smaller than that of the first through holes 211 and larger than that of the second through holes 221, the slag with the grain diameter smaller than that of the second through holes 221 can continuously drop downwards through the second through holes 221, and the second slag with the grain diameter larger than that of the second through holes 221 is blocked by the second sieve plate 22 and stops falling, so that the impact caused by that the second slag, namely larger slag, directly falls to the first conveying unit 1 from the discharge hole of the slag dragging machine 100 is avoided, and the service life of the first conveying unit 1 is prolonged.

Further, as shown in fig. 1 and fig. 2, the second screen plate 22 is obliquely arranged towards the first conveying unit 1, at this time, the first conveying unit 1 is disposed below the lower end of the second screen plate 22, so that the second slag carried on the second screen plate 22 rolls down onto the first conveying unit 1 from the inclined surface of the second screen plate 22 based on the dead weight, on one hand, the impact generated by that the second slag, i.e. the larger slag, directly falls down onto the first conveying unit 1 from the discharge hole of the slag conveyor 100 is avoided, on the other hand, the step of manual or mechanical transfer is reduced, and the method is convenient, quick and saves cost.

Further, as shown in fig. 1 and 2, the incinerator slag screening device further includes a first shock absorbing unit 51, where the first shock absorbing unit 51 is disposed in a circumferential direction of the first screen plate 21 and/or the second screen plate 22, and is configured to reduce shock generated when the slag falls onto the screening unit 2, and reduce impact on the screening unit 2 when the slag falls onto the screen plate. In the present embodiment, the first damper unit 51 may employ a damper spring to achieve a damper function. Specifically, taking the damping setting of the first screen plate 21 as an example, in this embodiment, the first screen plate 21 is supported and arranged between the discharge port of the slag conveyor 100 and the first end of the first conveying unit 1 through a bracket, the first screen plate 21 is erected on a beam of the bracket and fixedly connected through bolts, and damping springs are arranged between the first screen plate 21 and the beam, thereby realizing the damping function. In other embodiments, a cushioning material or device such as a cushioning pad may be used to achieve cushioning, which is not described herein. Preferably, as shown in fig. 1, in this embodiment, two ends, namely a higher end and a lower end, of the first screen 21 in the oblique direction may be horizontally disposed, so as to facilitate connection and stress between the first screen 21 and the support.

Preferably, as shown in fig. 1 and 2, a vibration unit 6 may be further disposed in the circumferential direction of the first screen plate 21 and/or the second screen plate 22, and an active end of the vibration unit 6 is connected or contacted with the first screen plate 21 and/or the second screen plate 22, so that the first screen plate 21 and/or the second screen plate 22 vibrate, thereby facilitating the slag to roll off from the screen plates. Specifically, the vibration unit 6 may adopt a linear reciprocating mechanism such as an air cylinder or a crank block mechanism, or a vibration motor, etc., to vibrate the first screen plate 21 and/or the second screen plate 22 in the vertical or horizontal direction. Wherein, waist-shaped holes and bolts can be used for connecting with the cross beam during the vibration in the horizontal direction, and the first screen plate 21 and/or the second screen plate 22 and the bracket can be kept with a horizontal movement allowance.

Further, as shown in fig. 1 and fig. 2, guiding walls 7 are respectively disposed on two lateral sides of the first screen plate 21 and/or the second screen plate 22, and the guiding walls 7 extend along a longitudinal direction of the screen plate where they are located and are disposed perpendicular to a plate surface of the screen plate where they are located, so that slag carried on the screen plate can roll down along an opening direction of the guiding walls 7. Taking the first screen plate 21 as an example for illustration, the guide walls 7 are respectively arranged on two lateral sides of the first screen plate 21, and the guide walls 7 are arranged along the longitudinal extension of the first screen plate 21 and perpendicular to the plate surface of the first screen plate 21, so that the first slag can roll along the opening direction of the guide walls 7, and the collection and storage of the first slag are facilitated.

It will be appreciated that in this embodiment, when the first screening deck 21 is horizontally disposed, any opposite sides of the first screening deck 21 are longitudinal, and the other opposite sides of the first screening deck 21 are transverse; when the first screen 21 is inclined, both ends of the first screen 21 in the inclination direction are longitudinal, and both sides of the first screen 21 in the inclination direction are transverse. The second screening deck 22 is the same in the transverse and longitudinal directions and will not be described again here.

Further, as shown in fig. 3, the screening unit 2 further includes a box-shaped casing 23, the box-shaped casing 23 is vertically hollow, the first screen plate 21 and/or the second screen plate 22 are fixedly connected to the inside of the box-shaped casing 23, a first slag discharge hole 231 is formed on a side wall of the box-shaped casing 23 corresponding to the first screen plate 21, and/or a second slag discharge hole 232 is formed corresponding to the second screen plate 22. Through the setting of box casing 23, can avoid first slag or second slag to drop from the edge of corresponding sieve, make things convenient for the collection of slag to accomodate.

Further, as shown in fig. 3, on the basis that the screening unit 2 is configured with the box-shaped casing 23, the incinerator slag screening device further comprises a second damping unit 52, and the second damping unit 52 can adopt a damping material or device such as a damping pad to realize damping; the second damping unit 52 is provided at the bottom of the box housing 23 for damping the shock generated when the slag falls to the sieving unit 2. When the first sieve plate 21 and the second sieve plate 22 are both fixedly connected to the inside of the box-shaped shell 23, the sieve plate and the box-shaped shell 23 are integrated, and the box-shaped shell 23 is damped, so that the damping function of dropping the first slag and the second slag can be realized simultaneously. Likewise, the vibrating unit 6 may be disposed at the bottom of the box-shaped casing 23, and vibrating the box-shaped casing 23 may make the first screen 21 and the second screen 22 vibrate simultaneously, so as to facilitate the first slag and the second slag to roll off from the corresponding screens.

Further, as shown in fig. 1, the first conveying unit 1 is further provided with a load cell 8 for monitoring the weight of the conveyed material, and the first conveying unit 1 may be a conveying belt provided with a variable frequency motor. The weight of the material on the first conveying unit 1 is monitored through the weighing sensor 8, so that the first conveying unit 1 stops running or runs at a low speed when no material exists, and the equipment energy consumption is reduced.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the modifications of the equivalent structures described in the specification and drawings of the present utility model or the direct/indirect application of the present utility model to other related technical fields are included in the scope of the present utility model.

Claims (10)

1. An incinerator slag screening device arranged between a slag dragging machine (100) and a magnetic separator (200), characterized by comprising:

The first end of the first conveying unit (1) is arranged below a discharge hole of the slag dragging machine (100) and is used for receiving slag, and the second end of the first conveying unit (1) is connected with the magnetic separator (200) so as to convey the slag to the magnetic separator (200);

The screening unit (2), screening unit (2) including set up in dragveyer (100) discharge gate with first sieve (21) between the first end, first sieve (21) are equipped with a plurality of first through-holes (211) for screen off the particle diameter is greater than first slag of first through-hole (211) aperture.

2. The incinerator slag screening device according to claim 1, further comprising a crushing unit (3) and a second conveying unit (4), wherein the crushing unit (3) is used for receiving and crushing the first slag, and the first slag is crushed by the crushing unit (3) and then conveyed to the magnetic separator (200) or the first conveying unit (1) by the second conveying unit (4).

3. An incinerator slag screening arrangement according to claim 2, characterised in that the first screen (21) is inclined towards the crushing unit (3) so that the first slag rolls off from the first screen (21) to the crushing unit (3).

4. A incinerator slag screening arrangement according to any of claims 1-3, characterized in that the screening unit (2) further comprises a second screen deck (22), said second screen deck (22) being arranged below the first screen deck (21); the second sieve plate (22) is provided with a plurality of second through holes (221) for sieving second slag with the particle size larger than the aperture of the second through holes (221); the aperture of the second via hole (221) is smaller than the aperture of the first via hole (211).

5. An incinerator slag screening arrangement according to claim 4, characterised in that the second screen (22) is inclined towards the first conveyor unit (1) so that the second slag rolls off from the second screen (22) to the first conveyor unit (1).

6. An incinerator slag screening apparatus according to claim 5, further comprising a first shock absorbing unit (51), the first shock absorbing unit (51) being arranged in the circumference of the first screen (21) and/or the second screen (22) for damping vibrations generated when slag falls down to the screening unit (2).

7. An incinerator slag screening arrangement according to claim 5, characterised in that the first screen (21) and/or the second screen (22) are provided with guide walls (7) on each lateral side, the guide walls (7) being arranged perpendicular to the plane of the screen on which they are located.

8. The incinerator slag screening device according to claim 5, wherein the screening unit (2) further comprises a box-shaped shell (23), the box-shaped shell (23) is vertically hollow, the first screen plate (21) and/or the second screen plate (22) are/is fixedly connected to the inside of the box-shaped shell (23), a first slag discharge hole (231) is formed in the side wall of the box-shaped shell (23) corresponding to the first screen plate (21), and/or a second slag discharge hole (232) is formed in the side wall of the box-shaped shell (23) corresponding to the second screen plate (22).

9. The incinerator slag screening device according to claim 8, further comprising a second damping unit (52), wherein the second damping unit (52) is arranged at the bottom of the box-shaped shell (23) and is used for damping vibration generated when slag falls to the screening unit (2).

10. An incinerator slag screening device according to claim 1, characterized in that the first conveyor unit (1) is provided with a load cell (8) for monitoring the weight of conveyed material.