CN112620068A

CN112620068A - Grit screening plant

Info

Publication number: CN112620068A
Application number: CN202011609330.2A
Authority: CN
Inventors: 孔利; 杨海乐; 刘鹏慧
Original assignee: MCC5 Group Shanghai Corp Ltd
Current assignee: MCC5 Group Shanghai Corp Ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-04-09

Abstract

The utility model provides a grit screening plant, which comprises a bracket, drive assembly, screening sleeve and ejection of compact subassembly, the support is frame construction and is equipped with the support runner, drive assembly includes motor and drive shaft, the drive shaft is connected with motor and one or two support runners around lieing in the same one side of support respectively, the screening sleeve includes the inner tube, flange ring and at least one urceolus, the urceolus is outside the inner tube with the suit mode suit, the inner tube is the tube-shape grid structure, the urceolus is the tube-shape screen mesh structure, each urceolus outside the inner tube of suit reduces from the aperture of its own screen cloth to outside gradually, the screen cloth aperture of inlayer inner tube is less than the interval width of inner tube grid, the screening sleeve is settled on the support runner through rotating the flange ring, ejection of compact subassembly is derived the. The motor rotates to drive the driving shaft to further drive the supporting rotating wheel and the screening sleeve to rotate, so that the sand and stone raw materials can be screened for many times, the efficiency is obviously improved, and the device is simple in structure and convenient to manufacture, use and transport.

Description

Grit screening plant

Technical Field

The invention relates to a sand and stone screening device, and belongs to the technical field of production and manufacturing of building construction devices.

Background

Sandstone is the basic material of construction, however, the sandstone that usually transports to job site or concrete mixing plant needs to be sieved in order to satisfy the different needs of construction to the grit granule size.

The screening of grit usually adopts grit screening plant to carry out, for this reason, have had the grit screening plant of different kinds, solution different technical problem among the prior art, for example:

the utility model provides a sandstone screening device for construction engineering (application number 201721806224.7) to solve the problems that dust is large in the screening process, the artificial body is easy to feel uncomfortable, and the subsequent cleaning of equipment is not available in the prior art;

the utility model relates to a sandstone screening device for building construction (application number 201820797623.X), which is provided by the utility model patent, and aims of simple and practical structure, occupation space reduction, convenient movement, time and labor saving, energy saving, environmental protection and labor degree reduction are achieved;

the invention provides a building sandstone screening device and a screening method thereof, which are provided by the patent application (application number 201810780048.7), so that two kinds of sandstone with different particle sizes are filtered and separated, and are conveniently separated and collected;

the utility model provides a "grit screening equipment for building construction" that utility model patent (application number 201921031965.1) provided can make the effect of grit screening better, avoids adopting repeated operation many times, has reduced human labor, has improved screening efficiency;

utility model patent (application number 201721918085.7) 'grit screening plant for construction' who provides has solved current grit screening plant for construction and has sieved problem not even enough.

Looking at the above prior art, it can be seen that:

the sand and stone screening device in the prior art can only screen sand and stone once, when the sand and stone screening device with one specification and model operates, sand and stone with two particle specifications can only be obtained, and can not be screened twice or more than twice at the same time, so that the efficiency is low, the particle diameter ratio of the divided sand and stone particles is wide, and the requirement of fine building construction can not be met;

in addition, the sand screening device in the prior art is complex in structure, heavy in equipment and difficult to carry, and screened fine sand can directly fall on the bottom of the sand screening device, so that the screening efficiency is influenced, and the cleaning and the transportation are also influenced;

in addition, some sand screening devices have their axis of rotation directly connected to a drive motor, which creates difficulties in the operation and later maintenance of the sand screening device.

Disclosure of Invention

In order to overcome the defects of the prior art, the embodiment of the invention provides a sand screening device, which aims to:

multiple screening is carried out on the building sandstone once to obtain sandstone materials with more than three granularity specifications, so that the requirement of building construction is met, and the screening efficiency is improved; meanwhile, the device structure is simplified, maintenance and transportation are facilitated, the service life of the device is prolonged, and the labor intensity is reduced.

In order to achieve the above object, the present invention provides a sand screening device for screening building sand, comprising:

the device comprises a bracket, a driving assembly, a screening sleeve and a discharging assembly;

the support is a frame-type structure body, and supporting rotating wheels are respectively arranged on the upper part of the support and on the two sides of the front end and the rear end of the support;

the driving assembly comprises a motor and a driving shaft, the motor is arranged on the bracket, one end of the driving shaft is rotatably connected with the motor, and the other end of the driving shaft is connected with one or two front and back supporting rotating wheels which are positioned on the same side of the bracket;

the screening sleeve comprises an inner cylinder, an outer cylinder and a rotating flange ring;

at least one outer cylinder is sleeved outside the inner cylinder in a sleeving manner, intervals are arranged between the outer cylinders and between the outer cylinder and the inner cylinder, and the outer cylinders and the inner cylinder are connected through supporting rods;

the inner cylinder comprises at least two inner cylinder flange rings, the inner cylinder flange rings are connected through long rods, and a plurality of long rods are arranged on the flange rings of the inner cylinder flange rings at intervals to form a cylindrical grid structure body;

the outer cylinder comprises at least two outer cylinder flange rings, and a screen is wrapped outside each outer cylinder flange ring to form a cylindrical screen structure body;

the apertures of the respective screens of the outer cylinders sleeved outside the inner cylinder are gradually reduced from inside to outside, and the apertures of the screens of the inner cylinder at the innermost layer are smaller than the interval width of the grids of the inner cylinder;

at least two rotary flange rings are respectively arranged at two ends of the outermost outer cylinder of the screening sleeve;

the screening sleeve is arranged on the supporting rotating wheel through the rotating flange ring, the port of the screening sleeve positioned at the front end of the support is the screening sleeve and is also the discharge port of the inner cylinder and each outer cylinder, and the port of the screening sleeve positioned at the rear end of the support is the screening sleeve and is also the feed port of the inner cylinder and each outer cylinder;

the discharging component is arranged on one side of the discharging port, the discharging component is formed by stacking discharging exporters with the number more than 2 of the outer barrels, the material receiving end of each discharging exporter is arranged below the discharging port of the inner barrel and below the discharging port of each outer barrel respectively, and the material receiving end of the discharging exporter positioned at the lowest part of the discharging component extends to the bottom of the outer barrel at the outermost part of the screening sleeve.

As a preferred technical scheme:

the screening sleeve is arranged on the supporting rotating wheels in a front-low and rear-high manner through a rotating flange ring of the screening sleeve.

As another preferred technical solution:

from the feed port to the discharge port, the diameter of each inner cylinder flange ring on the inner cylinder is gradually reduced, the inner cylinder flange rings with the gradually reduced diameters are connected through long rods, and a plurality of long rods are arranged on the flange rings of the inner cylinder flange rings at intervals to form a horn-shaped cylindrical grid structure body;

on the same outer barrel, from a feed port of the screening sleeve to a discharge port of the screening sleeve, the diameter of each inner barrel flange ring is gradually reduced, and a trumpet-shaped cylindrical screen mesh structure body is formed between the outer barrel flange rings with the diameters gradually reduced through a screen mesh wrapped on the outer side of each outer barrel flange ring.

Further:

the end parts of the outer cylinders, which are positioned at the feeding ports of the screening sleeves, are sealed through an annular cover plate, and the inner rings of the annular cover plate are connected with the outer ring of the inner cylinder flange ring.

As a preferred technical scheme:

the screening sleeve is further provided with a driving flange ring, and the driving assembly further comprises a driving wheel;

the driving flange ring is sleeved and fixed on the outer barrel of the outermost layer of the screening sleeve and located in the middle of the outer barrel, and the driving wheel is installed on the driving shaft and is in rolling connection with the driving flange ring.

Furthermore, the driving flange ring is a gear ring with external teeth, and the driving wheel is a gear capable of being matched with the gear ring.

Further, the discharging guider is a belt conveyor.

Furthermore, the bottom of the support is also provided with a universal wheel, and the universal wheel is also provided with a braking mechanism.

Further, the motor is a servo motor.

Compared with the prior art, the invention has the beneficial effects and remarkable progresses that:

1) the invention provides a sand screening device, which comprises a support, a driving component, a screening sleeve and a discharging component, wherein the support is a frame structure body, two sides of the front end and the rear end of the support are respectively provided with a supporting rotating wheel, the driving component comprises a motor and a driving shaft which are arranged on the support, two ends of the driving shaft are respectively connected with the motor and one or the front supporting rotating wheel and the rear supporting rotating wheel which are positioned at the same side of the support, the screening sleeve comprises an inner cylinder, a rotating flange ring and at least one outer cylinder, the outer cylinder is sleeved outside the inner cylinder in a sleeving manner, a distance is arranged between the outer cylinders and between the outer cylinder and the inner cylinder, the inner cylinder is a cylindrical grid structure body consisting of the inner cylinder flange ring and a long rod, the outer cylinder is a cylindrical screen structure body consisting of screens wrapped by the outer cylinder flange ring, the apertures of the outer cylinders sleeved outside the inner cylinder are gradually reduced from inside to outside, the screening sleeve is arranged on the supporting rotating wheel through a rotating flange ring, the discharging assembly is formed by stacking discharging exporters, a driving shaft is driven by the rotation of a motor and drives the supporting rotating wheel, and the supporting rotating wheel drives the screening sleeve to rotate, so that the sandstone raw material loaded in the screening sleeve is screened through a grid of the inner cylinder and a screen of the outer cylinder;

2) according to the sand and stone screening device, the screening sleeve comprises the inner cylinder with the cylindrical grid structure and the outer cylinder with the at least one cylindrical screen structure, sand and stone raw materials can be screened into sand and stones with three particle size specifications by one-time operation, the efficiency is improved by at least one time compared with that of a conventional sand and stone screening device, the screening efficiency is improved, and therefore various requirements of building construction can be met;

3) the sand and stone screening device provided by the invention has the advantages of unique conception, ingenious design, simple structure and convenience in manufacture and use, the driving component and the screening sleeve are separately arranged, the maintenance and repair problems of the easily damaged driving component of the sand and stone screening device are solved, the service life of the device can be prolonged, and the labor intensity of an operator is reduced, so that the sand and stone screening device has great application and popularization values.

Drawings

To more clearly illustrate the technical solution of the present invention, the drawings used in the embodiments of the present invention will be briefly described below.

Obviously:

the drawings in the following description are only part of the embodiments of the present invention, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts, but the other drawings also belong to the drawings required to be used by the embodiments of the present invention.

FIG. 1 is a schematic perspective view of a sand screening apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic top view of a sand screening device according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a feed port of a screening sleeve in a sand screening device according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a discharge port of a screening sleeve in the sand screening device according to the embodiment of the present invention.

In the figure:

100-support, 110-support wheel;

200-drive assembly, 210-motor, 220-drive shaft, 230-drive wheel;

300-screening sleeve, 310-inner cylinder, 311-inner cylinder flange ring, 312-long rod, 320-outer cylinder, 321-outer cylinder flange ring, 322-screen, 330-rotating flange ring, 340-supporting rod, 350-annular cover plate and 360-driving flange ring;

400-discharge assembly, 410-discharge exporter.

Detailed Description

In order to make the objects, technical solutions, advantages and significant progress of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings provided in the present specification, and it is obvious that all of the described embodiments are only some embodiments of the present invention, not all embodiments;

all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that:

the terms "first," "second," and the like in the description and claims of the present invention and in the drawings of embodiments of the present invention, are used for distinguishing between different objects and not for describing a particular order; furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to the listed steps or elements, but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It is to be understood that:

in the description of the embodiments of the present invention, the terms indicating orientation or position are used only for convenience of describing the embodiments of the present invention and for simplicity of explanation, and do not indicate or imply that the described devices or elements must have a specific orientation, a specific orientation configuration and operation, and therefore, the present invention should not be construed as limited.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as a fixed connection, a removable connection, a movable connection, or an integral part; the term "a" or "an" refers to a compound that can be directly connected or indirectly connected through an intermediate, or can be connected to each other or interact with each other, and unless otherwise specifically limited, the specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

It should also be noted that:

the following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

The technical means of the present invention will be described in detail below with specific examples.

Examples

This embodiment provides a grit screening plant for building grit screening.

Fig. 1 is a schematic perspective view of a sand screening device according to an embodiment of the present invention, fig. 2 is a schematic top view of the sand screening device according to the embodiment of the present invention, fig. 3 is a schematic structural view of a material inlet port of a screening sleeve of the sand screening device according to the embodiment of the present invention, and fig. 4 is a schematic structural view of a material outlet port of the screening sleeve of the sand screening device according to the embodiment of the present invention, as shown in the following drawings:

a sand screening device comprising:

support 100, drive assembly 200, screening sleeve 300, and outfeed assembly 400;

the support 100 is a frame structure, and the support wheels 110 are respectively arranged on the upper part of the support 100 at the two sides of the front and rear ends;

the driving assembly 200 comprises a motor 210 and a driving shaft 220, the motor 210 is arranged on the bracket 100, one end of the driving shaft 220 is rotatably connected with the motor 210, and the other end of the driving shaft 220 is connected with one or two front and back supporting rotating wheels 110 positioned at the same side of the bracket 100;

the sieving sleeve 300 comprises an inner cylinder 310, an outer cylinder 320 and a rotating flange ring 330;

at least one outer cylinder 320 is sleeved outside the inner cylinder 310 in a sleeving manner, and spaces are arranged among the outer cylinders 320, between the outer cylinders 320 and the inner cylinder 310, and the outer cylinders 320, between the outer cylinders 320 and the inner cylinder 310 are respectively connected through a support rod 340;

the inner cylinder 310 comprises at least two inner cylinder flange rings 311, the inner cylinder flange rings 311 are connected through long rods 312, and a plurality of long rods 312 are arranged on the flange rings of the inner cylinder flange rings 311 at intervals to form a cylindrical grid structure body;

the outer cylinder 320 comprises at least two outer cylinder flange rings 321, and the outer side of each outer cylinder flange ring 321 is wrapped with a screen 322 to form a cylindrical screen structure;

the apertures of the screens 322 of the outer cylinders 320 sleeved outside the inner cylinder 310 are gradually reduced from inside to outside, and the apertures of the screens 322 of the inner cylinders 320 at the innermost layer are smaller than the spacing width of the grids of the inner cylinders 310;

at least two rotating flange rings 330 are respectively arranged at two ends of the outermost outer cylinder 320 of the screening sleeve 300;

the screening sleeve 300 is arranged on the supporting runner 110 through a rotating flange ring 330, the port of the screening sleeve 300 at the front end of the bracket 100 is the screening sleeve 300 and is also the discharge port of the inner cylinder 310 and each outer cylinder 320, and the port of the screening sleeve 300 at the rear end of the bracket 100 is the screening sleeve 300 and is also the feed port of the inner cylinder 310;

the discharging component 400 is arranged on one side of the discharging port, the discharging component 400 is formed by stacking discharging exporters 410 with the number more than 2 of the outer barrels 320, the receiving end of each discharging exporter 410 is respectively arranged below the discharging port of the inner barrel 310 and below the discharging port of each outer barrel 320, and the receiving end of the discharging exporter 410 positioned at the lowest part of the discharging component 400 extends to the bottom of the outer barrel 320 at the outermost part of the screening sleeve 300.

From the above description, it can be seen that:

firstly, the sandstone screening device provided by the embodiment has the advantages that the sandstone raw material fed into the screening sleeve can be screened into the sandstone with three particle size specifications through one-time operation of the grating of the inner cylinder and the screen of the outer cylinder by the ingenious combination of the bracket, the driving component, the screening sleeve and the discharging component, and the efficiency is improved by at least one time compared with that of a conventional sandstone screening device, so that the screening efficiency is obviously improved, and various requirements of building construction can be met;

secondly, the driving assembly and the screening sleeve are separately arranged, so that the maintenance and repair problems of the easily damaged driving assembly of the sand screening device are solved, the service life of the device can be prolonged, and the labor intensity of an operator is reduced;

simultaneously, the grit screening plant that this embodiment provided, simple structure, preparation, use to and transport all are very convenient, consequently, have application and spreading value.

As a preferred embodiment, as can be seen from fig. 1, in this embodiment:

the support 100 is a frame structure with a lower front and a higher rear, and the support wheels 110 respectively disposed at the two sides of the upper front and rear ends of the support 100 are also distributed with a lower front and a higher rear, and the screening sleeve 300 is mounted on the support wheels 110 with a lower front and a higher rear through the rotating flange ring 330.

By adopting the preferred embodiment, after the grit material entering from the feeding port of the screening sleeve is screened, the grit material with various specifications can be conveniently output from the discharging port through the height difference, so that the material accumulation in the screening sleeve can not be caused, and the screening efficiency can be improved.

In order to further improve the screening efficiency of the aggregate, in this embodiment, the following preferred embodiments can be adopted:

from the feed port to the discharge port, the diameters of the inner cylinder flange rings 311 on the inner cylinder 310 are gradually reduced, the inner cylinder flange rings 311 with the gradually reduced diameters are connected through long rods 312, and a plurality of long rods 312 are arranged on the flange rings of the inner cylinder flange rings 311 at intervals to form a horn-shaped cylindrical grid structure;

on the same outer cylinder 320, from the feed port of the screening sleeve to the discharge port of the screening sleeve, the diameters of the inner cylinder flange rings 321 are gradually reduced, and a trumpet-shaped cylindrical screen mesh structure body is formed between the outer cylinder flange rings 321 with the diameters gradually reduced through a screen mesh 322 wrapped on the outer side of each outer cylinder flange ring 321.

The screening sleeve formed by the embodiment has larger feeding ports, so that the sand and stone can enter more conveniently and can be fed more and faster;

after the sand and stone materials are screened, the respective amount of the sand and stone materials with various specifications is less than the initial amount of the sand and stone materials entering the screening sleeve, and the number of the discharge ports is more than that of the feed ports, so that the difficulty in discharging is avoided;

thereby, the efficiency of screening can be improved.

Further, as shown in fig. 3:

the end of each outer cylinder 320 at the feed port of the screening sleeve is closed by an annular cover plate 350, the inner ring of the annular cover plate 350 being connected to the outer ring of the inner cylinder flange 321.

Through such improvement, can avoid original grit material to get into the urceolus by mistake when sieving the sleeve in, cause the screening quality problem.

As still another preferred embodiment, as can be seen from fig. 1, in this embodiment:

the screening sleeve 300 is further provided with a driving flange ring 360, and the driving assembly 200 further comprises a driving wheel 230;

the driving flange ring 360 is fixed on the outer cylinder 320 of the outermost layer of the screening sleeve 300 in a sleeved manner and is located in the middle of the outer cylinder 320, and the driving wheel 230 is installed on the driving shaft 220 and is in rolling connection with the driving flange ring 360.

Adopt above-mentioned preferred embodiment, can make the telescopic rotation of screening more steady to improve screening efficiency, guarantee the steady of device operation, improve the security performance of device.

Further, in the above preferred embodiment:

the driving flange ring 360 may be a gear ring having external teeth, and the driving wheel 230 may be a gear capable of being engaged with the gear ring.

Obviously, the driving flange ring and the driving wheel are driven by adopting a meshing method, so that the utilization rate of the output power of the motor can be improved, and the running stability of the device can be improved.

Further, in this embodiment, the discharging guider 410 may be a belt conveyor to more conveniently and quickly convey the screened sand material to the construction site.

Further, in this embodiment, the bottom of the bracket 100 may further be provided with a universal wheel (not shown), and the universal wheel (not shown) may further be provided with a braking mechanism (not shown), so as to conveniently and quickly arrange the sand sieving device to a place where the sand sieving device needs to be used.

Further, in this embodiment, the motor 210 may be a servo motor to better control the operation of the screening sleeves.

In summary, it can be seen that:

the sand and stone screening device provided by the invention has the advantages of unique conception, ingenious design, simple structure, convenient manufacture, use and transportation, unexpected effect and good economic and social benefits, and has great application and popularization values.

It should be noted that:

in the description above, the terms "present embodiment," "present invention embodiment," "illustrated as … …," "further," and the like are used to 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 invention.

In this specification, the terminology used in the description above is not necessarily meant to be exhaustive or to refer to the same embodiment or example, and the particular features, structures, materials, or characteristics described may be combined or nearly combined in any suitable manner in any one or more embodiments or examples.

Furthermore, those of ordinary skill in the art may combine or combine features of different embodiments or examples and features of different embodiments or examples described in this specification without undue conflict.

Finally, it should also be noted that:

the above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same;

although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that various changes and modifications may be made, and equivalents may be substituted for elements thereof without departing from the scope of the embodiments of the present invention.

Claims

1. The utility model provides a grit screening plant for screening of building grit, its characterized in that includes:

2. A sand screening apparatus as claimed in claim 1, wherein:

3. A sand screening apparatus as claimed in claim 1, wherein:

4. A sand screening apparatus as claimed in claim 1, wherein:

5. A sand screening apparatus as claimed in claim 1, wherein:

6. A sand screening apparatus as claimed in claim 5, wherein: the driving flange ring is a gear ring with external teeth, and the driving wheel is a gear capable of being matched with the gear ring.

7. A sand screening apparatus as claimed in claim 1, wherein: the discharging guider is a belt conveyor.

8. A sand screening apparatus as claimed in claim 1, wherein: the bottom of the support is also provided with a universal wheel, and the universal wheel is also provided with a braking mechanism.

9. A sand screening apparatus as claimed in claim 1, wherein: the motor is a servo motor.