CN221288037U - Engineering dregs screening device - Google Patents

Abstract

The utility model discloses an engineering slag soil screening device which comprises a frame body, a screening container and a multi-stage first spraying component, wherein the screening container is provided with a feeding cavity, a discharging cavity and a multi-stage screening cavity, the feeding cavity is communicated with the discharging cavity through the screening cavity, the feeding cavity, the screening cavity and the discharging cavity are vertically distributed at intervals, the cross section area of the screening cavity is gradually reduced along the direction from top to bottom, a screen is arranged at the outlet of the screening cavity, the pore diameter of the screen in the multi-stage screening cavity is gradually reduced along the direction from top to bottom, the multi-stage first spraying component is in one-to-one correspondence with the multi-stage screening cavity, the first spraying component is arranged in the screening cavity corresponding to the first spraying component and is positioned above the screen, and the first spraying component is used for spraying slag soil on the screen corresponding to the first spraying component to form slurry. And the layout of the feeding hopper and the screen cloth is optimized, and the structural design of the shrinkage of the screen material cavity is adopted, so that the whole screen cloth is uniformly filled with the dregs, and the rationality of the structure and the effectiveness of equipment utilization are improved.

Description

Engineering dregs screening device

Technical Field

The utility model relates to the technical field of slag soil environment-friendly treatment, in particular to an engineering slag soil screening device.

Background

A large amount of dregs can be produced in the urban subway tunnel construction process, if the method is directly adopted for burying soil, on one hand, the environment pollution can be caused, and on the other hand, the resource waste can be caused, so that the produced engineering dregs need to be subjected to environmental protection treatment through procedures such as separation, dehydration and the like, and special screening equipment is needed in the separation process. But in the process of screening operation of screening equipment, the problems of easy agglomeration and difficult separation of sediment exist, and the screening quality and the resource waste are reduced.

In the related art, spraying is adopted to enable the dregs to form slurry, and the dregs are screened step by step through a plurality of layers of screens, so that the problems of sediment structure and difficult separation are solved, and the screening quality of the dregs is improved. However, the problems of uneven distribution of dregs and inconvenient cleaning of the screen mesh still exist.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems in the related art to some extent.

Therefore, the embodiment of the utility model provides an engineering slag soil screening device which solves the problems of uneven slag soil distribution and inconvenient screen cleaning in the screening process.

The engineering residue soil screening device provided by the embodiment of the utility model comprises: the screening container is provided with a feeding cavity, a discharging cavity and a multi-stage screening cavity, the feeding cavity is communicated with the discharging cavity through multiple stages of screening cavities, the feeding cavity, the screening cavities and the discharging cavities are distributed at intervals vertically, the cross section area of the screening cavities is gradually reduced along the direction from top to bottom, a screen is arranged at the outlet of the screening cavities, so that dregs in the feeding cavities fall onto the screen, the aperture of the screen in the screening cavities is gradually reduced along the direction from top to bottom, the first spraying components are in one-to-one correspondence with the screening cavities, the first spraying components are arranged in the screening cavities corresponding to the first spraying components and are located above the screen, and the first spraying components are used for spraying dregs on the screen corresponding to the first spraying components to form mud.

According to the engineering residue soil screening device disclosed by the embodiment of the utility model, the layout of the feed hopper and the screen cloth is optimized, and the structure design of the diameter reduction of the screen material cavity is carried out, so that the whole screen cloth is uniformly filled with residue soil, and the rationality of the structure and the effectiveness of equipment utilization are improved.

In some embodiments, the screening cavity comprises a first cavity, a second cavity, a third cavity and a fourth cavity, the first cavity, the second cavity and the third cavity are sequentially arranged along the direction from top to bottom, the fourth cavity surrounds the first cavity, the first cavity and the fourth cavity are communicated with the third cavity through the second cavity, the cross-sectional area of the second cavity is gradually reduced along the direction from top to bottom, the screen is arranged in the third cavity, and the first spraying component is arranged in the fourth cavity.

In some embodiments, the first spray assembly comprises a first liquid inlet pipe and an annular liquid distribution pipe connected with the first liquid inlet pipe, a plurality of first spray heads are arranged on the annular liquid distribution pipe, and the first spray heads are distributed at intervals along the circumferential direction of the annular liquid distribution pipe.

In some embodiments, a mounting groove is provided in a wall of the third chamber, and the screen is slidably disposed in the mounting groove.

In some embodiments, the inlet of the first feed tube is positioned outside the sieve chamber such that the first feed tube is connected to a water source.

In some embodiments, the cross-sectional area of the feed chamber tapers in a top-to-bottom direction.

In some embodiments, the engineering residue soil screening device further comprises a crushing assembly, the crushing assembly is arranged at the inlet of the feeding cavity, the crushing assembly comprises a roll shaft and a driving piece, a plurality of toothed plates are arranged on the roll shaft, the driving piece is connected with the roll shaft to drive the roll shaft to rotate, and the crushing assembly is provided with a plurality of crushing assemblies and is distributed at intervals along the width direction of the feeding cavity.

In some embodiments, the discharge chamber is disposed obliquely, an inlet of the discharge chamber is disposed vertically, and an outlet of the discharge chamber is disposed horizontally.

In some embodiments, the engineering residue soil screening device further comprises a second spray assembly disposed within the discharge cavity, the second spray assembly being configured to spray slurry within the discharge cavity.

In some embodiments, the second spray assembly comprises a second liquid inlet pipe and a horizontal liquid distribution pipe connected with the second liquid inlet pipe, wherein an inlet of the second liquid inlet pipe is positioned outside the discharge cavity, so that the second liquid inlet pipe is connected with a water source, the horizontal liquid distribution pipe is detachably connected with a cavity wall of the discharge cavity, and a plurality of second spray heads are arranged on the horizontal liquid distribution pipe.

Drawings

FIG. 1 is a schematic view of an engineering residue screening device according to an embodiment of the present utility model.

FIG. 2 is an internal schematic view of an engineered residue screening device according to an embodiment of the utility model.

FIG. 3 is a schematic view of a portion of the construction of an engineered residue soil screening device according to an embodiment of the utility model.

FIG. 4 is a schematic view of a screen of an engineered residue soil screening device according to an embodiment of the present utility model.

FIG. 5 is a schematic view of a first spray assembly of an engineered slag screening device according to an embodiment of the present utility model.

FIG. 6 is a schematic view of a second spray assembly of an engineered residue soil screening device according to an embodiment of the present utility model.

Reference numerals:

A frame body 1,

Screening vessel 2, feed chamber 21, discharge chamber 22, screening chamber 23, first chamber 231, second chamber 232, third chamber 233, mounting groove 2331, fourth chamber 234,

A screen 3,

A first spray assembly 4, a first liquid inlet pipe 41, an annular liquid distribution pipe 42, a first spray nozzle 43,

A crushing assembly 5,

The second spray assembly 6, the second liquid inlet pipe 61, the horizontal liquid distribution pipe 62 and the second spray head 63.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

The following describes an engineering residue screening device according to an embodiment of the present utility model with reference to the accompanying drawings.

As shown in fig. 1 to 6, the engineering residue soil screening device according to the embodiment of the present utility model includes: a frame body 1, a screening container 2 and a multi-stage first spray assembly 4.

As shown in fig. 1, the frame body 1 includes a plurality of support rods and a plurality of annular frames, and the plurality of annular frames are distributed on the support rods at intervals along the up-down direction. The screening container 2 comprises a feeding hopper, a discharging hopper and a multi-stage screening hopper, wherein the feeding hopper is connected with the discharging hopper through the multi-stage screening hopper, the feeding hopper, the multi-stage screening hopper and the discharging hopper are sequentially distributed at intervals along the upper and lower directions, the feeding hopper is positioned right above the uppermost screening hopper, and the discharging hopper is positioned right below the lowermost screening hopper.

The hopper, the screening hopper and the discharge hopper all have an inlet at their upper ends and an outlet at their lower ends, the hopper having a feed chamber 21, the screening hopper having a screening chamber 23, and the discharge hopper having a discharge chamber 22. The outlet of the feed chamber 21 is in communication with the inlet of the uppermost sieve chamber 23 and the outlet of the lowermost sieve chamber 23 is in communication with the inlet of the discharge chamber 22. That is, the muck enters the feed chamber 21 through the inlet of the feed chamber 21, then falls into the sieve chamber 23 through the outlet of the feed chamber 21, and falls into the discharge chamber 22 through the multi-stage sieve chamber 23 in sequence, and is discharged through the outlet of the discharge chamber 22.

The cross-sectional area of the sieve chamber 23 is gradually reduced in a top-to-bottom direction, and a screen 3 is provided at the outlet of the sieve chamber 23 so that the slag passing through the feed chamber 21 falls onto the screen 3. It will be appreciated that most of the slag falls directly onto the screen 3 and a small part of the slag falls onto the inclined walls of the screen cavity 23 and slides down the walls onto the screen 3.

Thus, in contrast to the screening apparatus of the related art, the feed hopper is located obliquely above the screen 3, resulting in almost no muck on the screen 3 on the side far from the feed hopper, and there is a problem of uneven muck distribution. The engineering residue soil screening device provided by the embodiment of the utility model optimizes the layout of the feed hopper and the screen 3 and adopts the structural design of reducing the diameter of the screen cavity 23, so that the whole screen 3 is uniformly filled with residue soil, and the rationality of the structure and the effectiveness of equipment utilization are improved.

The multistage first spraying components 4 are in one-to-one correspondence with the multistage screening cavities 23, the first spraying components 4 are arranged in the screening cavities 23 corresponding to the first spraying components and are located above the screens 3, and the first spraying components 4 are used for spraying dregs on the screens 3 corresponding to the first spraying components to form slurry. It can be appreciated that the multi-stage spraying mode is adopted, so that the slag soil in each stage of the sieve material cavity 23 is sprayed, and the efficiency and the effect of forming slurry by spraying the slag soil are improved.

For example, as shown in fig. 1 to 3, the multi-stage screening cavities 23 include a first stage screening cavity located uppermost, a second stage screening cavity located in the middle, and a third stage screening cavity located lowermost, the outlet of the feed cavity 21 is in communication with the inlet of the first stage screening cavity, the outlet of the first stage screening cavity is in communication with the inlet of the second stage screening cavity, the outlet of the second stage screening cavity is in communication with the inlet of the third stage screening cavity, and the outlet of the third stage screening cavity is in communication with the inlet of the discharge cavity 22.

And, the sieve pore diameter of screen cloth 3 in the first order sieve material intracavity is greater than the sieve pore diameter of screen cloth 3 in the second order sieve material intracavity, and the sieve pore diameter of screen cloth 3 in the second order sieve material intracavity is greater than the sieve pore diameter of screen cloth 3 in the third order sieve material intracavity to sieve the dregs step by step, guarantee the screening quality of engineering dregs.

In some embodiments, as shown in fig. 2 and 3, the screen cavity 23 includes a first cavity 231, a second cavity 232, a third cavity 233, and a fourth cavity 234. The first cavity 231, the second cavity 232 and the third cavity 233 are sequentially arranged along the direction from top to bottom, the fourth cavity 234 surrounds the first cavity 231, the first cavity 231 and the fourth cavity 234 are communicated with the third cavity 233 through the second cavity 232, the cross-sectional area of the second cavity 232 is gradually reduced along the direction from top to bottom, the screen 3 is arranged in the third cavity 233, and the first spraying assembly 4 is arranged in the fourth cavity 234.

It will be appreciated that if the first spray assembly 4 is disposed directly above the screen 3, the falling residue will fall onto the first spray assembly 4, resulting in damage to the first spray assembly 4 due to impact, and blockage of the spray opening (the nozzle of the first nozzle 43 as shown in fig. 5) by the residue.

Thereby, the blanking channel of the screen material cavity 23 is separated from the installation space of the first spray assembly 4, so that the influence of the dregs on the operation of the first spray assembly 4 is avoided.

Specifically, as shown in fig. 2 and 3, the first chamber 231 and the third chamber 233 each have a cylindrical shape, the cross-sectional area of the first chamber 231, the cross-sectional area of the third chamber 233, and the cross-sectional area of the outlet of the blanking chamber are all the same, the fourth chamber 234 has a ring shape, the sum of the cross-sectional area of the first chamber 231 and the cross-sectional area of the fourth chamber 234 is the same as the cross-sectional area of the upper end of the second chamber 232, and the cross-sectional area of the lower end of the second chamber 232 is the same as the cross-sectional area of the third chamber 233.

In some embodiments, as shown in fig. 2 to 5, the first spray assembly 4 includes a first liquid inlet pipe 41 and an annular liquid distribution pipe 42 connected to the first liquid inlet pipe 41, and a plurality of first spray nozzles 43 are disposed on the annular liquid distribution pipe 42, and the plurality of first spray nozzles 43 are distributed at intervals along the circumferential direction of the annular liquid distribution pipe 42.

That is, as shown in fig. 2 and 3, the annular liquid distribution pipe 42 surrounds the first chamber 231, and the nozzle openings of the first nozzle 43 on the annular liquid distribution pipe 42 are directed toward the screen 3 so that the liquid ejected through the first nozzle 43 is ejected obliquely onto the screen 3.

Further, as shown in fig. 1 to 3, the inlet of the first liquid inlet pipe 41 is located outside the sieve chamber 23. In other words, the first liquid inlet pipe 41 penetrates the upper chamber wall of the fourth chamber 234 in the up-down direction, so that the upper end inlet of the first liquid inlet pipe 41 is located outside the sieve chamber 23, thereby facilitating connection of the first liquid inlet pipe 41 to a water source.

In some embodiments, as shown in fig. 4, a mounting groove 2331 is provided on a chamber wall of the third chamber 233, and the screen 3 is slidably provided in the mounting groove 2331, thereby facilitating periodic maintenance and replacement of the screen 3.

Alternatively, as shown in fig. 4, the screen 3 includes a support plate and a circular screen, a mounting hole is provided at the center of the support plate, the circular screen is provided in the mounting hole, and the diameter of the circular screen is the same as the diameter of the third chamber 233, that is, the diameter of the circular screen is the same as the diameter of the outlet of the feeding chamber 21.

In some embodiments, as shown in fig. 1-3, the cross-sectional area of the feed chamber 21 tapers in a top-to-bottom direction to facilitate collection of shield-generated muck at the outlet of the feed chamber 21 after passing into the feed chamber 21.

Further, as shown in fig. 1 to 3, the engineering residue soil screening device according to the embodiment of the present utility model further includes a crushing assembly 5, and the crushing assembly 5 is disposed at an inlet of the feeding chamber 21. The crushing assembly 5 comprises a roll shaft and a driving piece, a plurality of toothed plates are arranged on the roll shaft, the driving piece is connected with the roll shaft to drive the roll shaft to rotate, the crushing assembly 5 is provided with a plurality of crushing assemblies 5, and the crushing assemblies 5 are distributed at intervals along the width direction of the feeding cavity 21.

It can be appreciated that after the slag is crushed by the crushing assembly 5, the slag falls into the screening cavity 23 through the feeding cavity 21 to spray and screen, so that the problem that larger mud blocks are not easy to dilute into mud is avoided, and the efficiency and effect of forming mud from the slag are improved.

In some embodiments, as shown in fig. 1 to 6, the discharge chamber 22 is obliquely arranged, the inlet of the discharge chamber 22 is arranged along the up-down direction, and the outlet of the discharge chamber 22 is arranged along the front-back direction, so that the slurry is guided to the outlet of the discharge chamber 22 through the inclined wall surface of the discharge chamber 22, and the slurry is conveniently collected and transported to the next process.

Further, as shown in fig. 1 to 6, the engineering residue soil screening device according to the embodiment of the utility model further comprises a second spraying assembly 6, the second spraying assembly 6 is arranged in the discharging cavity 22, and the second spraying assembly 6 is used for spraying slurry in the discharging cavity 22.

Alternatively, as shown in fig. 1 to 6, the second spray assembly 6 includes a second liquid inlet pipe 61 and a horizontal liquid distribution pipe 62 connected to the second liquid inlet pipe 61. The inlet of the second liquid inlet pipe 61 is located outside the discharge chamber 22, so that the second liquid inlet pipe 61 is connected to a water source, the horizontal liquid distribution pipe 62 is detachably connected to the chamber wall of the discharge chamber 22 (for example, the horizontal liquid distribution pipe 62 is fixed on the outer wall of the discharge chamber 22 through a hoop and a bolt), and a plurality of second spray heads 63 are arranged on the horizontal liquid distribution pipe 62.

It will be appreciated that the second spray assembly 6 is used to spray and dilute the slurry in the discharge chamber 22, further avoiding the occurrence of large particulate mud cake and ensuring screening quality.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are 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 the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the utility model.

Claims (10)

1. An engineering slag screening device, comprising:

A frame body;

The screening container is provided with a feeding cavity, a discharging cavity and a multi-stage screening cavity, wherein the feeding cavity is communicated with the discharging cavity through the multi-stage screening cavity, the feeding cavity, the multi-stage screening cavity and the discharging cavity are distributed at intervals vertically, the cross section area of the screening cavity is gradually reduced along the direction from top to bottom, a screen is arranged at the outlet of the screening cavity so as to enable dregs passing through the feeding cavity to fall onto the screen, and the pore diameter of the screen in the multi-stage screening cavity is gradually reduced along the direction from top to bottom;

The first spraying assembly is arranged in the corresponding screening cavity and is positioned above the screen, and the first spraying assembly is used for spraying dregs on the screen corresponding to the first spraying assembly to form slurry.

2. The engineering residue soil screening device according to claim 1, wherein the material screening cavity comprises a first cavity, a second cavity, a third cavity and a fourth cavity, the first cavity, the second cavity and the third cavity are sequentially arranged along the direction from top to bottom, the fourth cavity surrounds the first cavity, the first cavity and the fourth cavity are communicated with the third cavity through the second cavity, the cross-sectional area of the second cavity is gradually reduced along the direction from top to bottom, the screen is arranged in the third cavity, and the first spraying assembly is arranged in the fourth cavity.

3. The engineering slag soil screening device according to claim 2, wherein the first spraying assembly comprises a first liquid inlet pipe and an annular liquid distribution pipe connected with the first liquid inlet pipe, a plurality of first spray heads are arranged on the annular liquid distribution pipe, and the first spray heads are distributed at intervals along the circumferential direction of the annular liquid distribution pipe.

4. The engineered slag screening assembly of claim 2, wherein the third chamber has a mounting slot in a wall thereof, the screen slidably disposed in the mounting slot.

5. An engineered slag screening assembly as defined in claim 3, wherein the inlet of said first feed pipe is positioned outside of said screen cavity such that said first feed pipe is connected to a water source.

6. The engineered slag screening assembly of claim 1, wherein the cross-sectional area of the feed cavity tapers in a top-to-bottom direction.

7. The engineered slag screening device of claim 1, further comprising a crushing assembly disposed at the inlet of the feed chamber, the crushing assembly comprising a roller and a drive member, the roller having a plurality of toothed plates thereon, the drive member being coupled to the roller for driving the roller to rotate, the crushing assembly having a plurality of crushing assemblies spaced apart along the width of the feed chamber.

8. The engineered slag screening assembly of claim 1, wherein the discharge chamber is disposed at an incline, an inlet of the discharge chamber is disposed vertically, and an outlet of the discharge chamber is disposed horizontally.

9. The engineered slag screening assembly of claim 8, further comprising a second spray assembly disposed within the discharge chamber, the second spray assembly configured to spray slurry within the discharge chamber.

10. The engineered slag screening device of claim 9, wherein the second spray assembly comprises a second liquid inlet pipe and a horizontal liquid distribution pipe connected to the second liquid inlet pipe, wherein an inlet of the second liquid inlet pipe is positioned outside the discharge cavity so that the second liquid inlet pipe is connected to a water source, the horizontal liquid distribution pipe is detachably connected to a cavity wall of the discharge cavity, and a plurality of second spray nozzles are arranged on the horizontal liquid distribution pipe.