CN107138386B - Multi-layer cylinder screen, screening system and application thereof - Google Patents

Multi-layer cylinder screen, screening system and application thereof Download PDF

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Publication number
CN107138386B
CN107138386B CN201710423630.3A CN201710423630A CN107138386B CN 107138386 B CN107138386 B CN 107138386B CN 201710423630 A CN201710423630 A CN 201710423630A CN 107138386 B CN107138386 B CN 107138386B
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China
Prior art keywords
cylindrical screen
screen
cylindrical
screens
layer
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CN107138386A (en
Inventor
朱现峰
贾勤长
慎万停
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Zhengzhou Runbao Refractory Material Co ltd
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Zhengzhou Runbao Refractory Material Co ltd
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Priority to CN201710423630.3A priority Critical patent/CN107138386B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/18Drum screens
    • B07B1/22Revolving drums
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/60Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes

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  • Combined Means For Separation Of Solids (AREA)

Abstract

The invention provides a multi-layer cylinder screen, a screening system and application thereof, and relates to the technical field of cylinder screen screening. The multi-layer cylindrical screen comprises a plurality of layers of cylindrical screens and a plurality of same cylindrical screens, wherein the cylindrical screens are arranged on each layer of the cylindrical screen, the axial directions of the cylindrical screens are parallel to each other, and the cylindrical screens are vertically arranged; each cylindrical screen comprises a first cylindrical screen and a second cylindrical screen, the end parts of the first cylindrical screen and the end parts of the second cylindrical screen are connected, the mesh size of the first cylindrical screen is smaller than that of the second cylindrical screen, and the head and the tail of the cylindrical screen are respectively provided with a feed inlet and a discharge outlet; the bottom of the cylindrical screen is provided with a discharge inclined plate, and the materials are collected through a discharge pipeline. The invention relieves the technical problems of low screening efficiency, inaccurate grading and inconvenient screen replacement of the traditional cylindrical screen, can screen materials in a large scale at one time by vertically arranging and placing a plurality of cylindrical screens, improves the production efficiency, can effectively screen materials with different particle diameters, and is convenient to replace.

Description

Multi-layer cylinder screen, screening system and application thereof
Technical Field
The invention relates to the technical field of screening of cylindrical screens, in particular to a multi-layer cylindrical screen, a screening system and application thereof.
Background
The cylindrical screen is a screening machine which can screen by rotating, during working, materials are fed from one end of the cylinder, fine-grade materials pass through the screen holes on the cylindrical working surface, and coarse-grain materials are discharged from the other end of the cylinder. The rotation speed of the cylinder screen is very low, the operation is stable, and the power balance is good.
In the production of the ceramic propping agent, products with required granularity can be screened out by using a cylindrical screen, and the current cylindrical screen can not meet the requirements along with the continuous expansion of the production scale of the ceramic propping agent and the increase of the product specification.
The drum screen in the current market is simple in design, but has the following problems:
1. the working efficiency is low, and the material quantity of one-time screening is limited due to limited space in the screen cylinder, so that the efficiency is low, and the requirement of mass screening production cannot be met.
2. The classification of the particles is inaccurate, coarse-grain materials with the pore size larger than the sieve pores and fine-grain materials with the pore size smaller than the sieve pores can be obtained only by using a screen with a single pore size, products cannot be classified further, some current cylindrical screens consist of inner and outer multi-layer screens, and although products with different particle sizes can be further obtained, the inner and outer layer type structure is inconvenient to maintain and replace the screens, and time and labor are wasted.
In view of this, the present invention has been made.
Disclosure of Invention
The invention aims to provide a multilayer cylinder screen, a plurality of cylinder screens are vertically arranged and placed, the occupied space is small, the plurality of cylinder screens can work simultaneously, a large amount of materials can be screened at one time, the production efficiency is improved, and meanwhile, each cylinder screen consists of cylinder screens with meshes of different sizes, so that the materials can be screened in a grading manner, and the screens can be replaced respectively when being replaced, thereby being convenient and time-saving.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the multi-layer cylinder screen comprises a plurality of layers of frame bodies and a plurality of same cylinder screens, wherein the number of layers of the frame bodies is the same as that of the cylinder screens, a rotating shaft of each cylinder screen is arranged on each layer of the frame bodies in a supporting mode, the axial directions of the cylinder screens are parallel to each other, and the cylinder screens are vertically arranged;
each cylindrical screen comprises a first cylindrical screen and a second cylindrical screen with the same radius, the ends of the first cylindrical screen and the second cylindrical screen are connected, the mesh size of the first cylindrical screen is smaller than that of the second cylindrical screen, a feed inlet is formed in one end, far away from the second cylindrical screen, of the first cylindrical screen, and a discharge outlet is formed in one end, far away from the first cylindrical screen, of the second cylindrical screen; the bottoms of the first cylindrical screen and the second cylindrical screen are provided with discharge inclined plates, the discharge inclined plates are divided into a first discharge inclined plate and a second discharge inclined plate by a partition plate, so that the bottom of the first cylindrical screen corresponds to the first discharge inclined plate, and the bottom of the second cylindrical screen corresponds to the second discharge inclined plate;
each first discharging inclined plate is communicated through a first discharging pipeline, so that the materials screened out from the bottom of each first cylindrical screen can be collected to the bottom of the first discharging pipeline, each second discharging inclined plate is communicated through a second discharging pipeline, and the materials screened out from the bottom of each second cylindrical screen can be collected to the bottom of the second discharging pipeline; and each discharge hole is provided with a guide groove, so that materials screened out from the tail of each second cylindrical screen can be collected together.
Furthermore, on the basis of the technical scheme provided by the invention, the height of one end of the cylindrical screen close to the feeding hole is higher than the height of one end of the cylindrical screen close to the discharging hole.
Preferably, on the basis of the technical scheme provided by the invention, the frame body is 2-4 layers.
Preferably, on the basis of the technical scheme provided by the invention, the length of the cylinder body of the cylindrical screen is 5-10 m.
Preferably, on the basis of the technical scheme provided by the invention, the diameter of the cylinder body of the cylindrical screen is 0.7-1.5 m.
Further, on the basis of the technical scheme provided by the invention, the multi-layer cylinder screen further comprises a feeding device;
and a distributor is arranged below the outlet of the feeding device and is communicated with each feeding hole through a feeding pipe.
Furthermore, on the basis of the technical scheme provided by the invention, the gate valve is arranged at the outlet of the distributor.
Compared with the prior art, the multilayer cylinder screen provided by the invention has the following beneficial effects:
(1) According to the multilayer cylindrical screen, the plurality of cylindrical screens are arranged in a three-dimensional mode, the plurality of cylindrical screens can work simultaneously, the primary screening amount is large, the production efficiency is improved, and the space occupied by the vertical arrangement mode is small.
(2) The cylindrical screen is formed by splicing the cylindrical screens with different apertures end to end, the cylindrical screen is axially divided into a plurality of screen screening sections, the screen meshes of the screen sections are sequentially increased from a feeding end to a discharging end, the materials are sequentially screened from thin to thick in the rolling and sliding process, the screens can be replaced in a segmented mode, the screen replacement is more convenient, the screen length is longer, the rolling and sliding distance and the residence time of the materials in the cylindrical screen are long, and the screening is more effective.
(3) When a plurality of cylindrical screens arranged up and down work simultaneously, the materials screened out from each section can be respectively collected, and when the materials are fed, the materials are fed into the plurality of cylindrical screens, and finally the materials with different required particle sizes can be respectively obtained. The whole multilayer cylinder screen only needs one person to operate, so that the labor force is reduced, the production efficiency is improved, the screening efficiency is improved, materials with different particle sizes can be effectively screened out, and the production efficiency of the next working procedure is improved.
Another object of the present invention is to provide a screening system comprising the above multi-layer cylindrical screen.
The screening system at least comprises a group of the multilayer cylindrical screens, and the screening system can arrange a plurality of groups of the multilayer cylindrical screens side by side, so that the production efficiency is improved. The screening system has the same advantages as the multi-layer cylindrical screen described above and will not be described in detail here. The whole screening system has small occupied area, high working efficiency, high automation degree and convenient maintenance, and saves manpower.
Further, on the basis of the technical scheme provided by the invention, the screening system further comprises: the first lifting machine, the first storage bin, the second lifting machine and the second storage bin;
the material at the bottom of the first discharging pipeline can enter the first lifting machine, and the material in the first lifting machine can enter the first storage bin; the material of second ejection of compact pipeline bottom can get into the second lifting machine, the material in the second lifting machine can get into the second feed bin.
Further, on the basis of the technical scheme provided by the invention, the screening system further comprises: a conveyor belt;
the material in the guide chute can flow onto the conveyor belt.
The invention further aims to provide an application of the multilayer cylindrical screen or the screening system in production of ceramsite propping agents.
Through adopting multilayer cylinder sieve to sieve haydite proppant, can effectively sieve out the big, small cue ball of different particle diameters, production efficiency is high, has saved the manpower, is favorable to improving the yield of next process simultaneously.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a multi-layer cylindrical screen according to one embodiment of the present invention;
FIG. 2 is a front view of a multi-layer cylindrical screen according to one embodiment of the present invention;
FIG. 3 is a side view of a multi-layer cylindrical screen according to one embodiment of the present invention;
FIG. 4 is a schematic view of a discharge swash plate and a discharge pipe according to an embodiment of the present invention;
fig. 5 is a schematic view of a screening system according to an embodiment of the present invention.
Icon: 100-frame body; 200-a cylindrical screen; 210-a first cylindrical screen; 220-a second cylindrical screen; 230-a feed inlet; 240-a discharge hole; 241-a guide chute; 250-discharging inclined plates; 251-a first discharge sloping plate; 252-a second discharge sloping plate; 261-a first discharge line; 262-a second discharge line; 300-feeding machine; 400-distributor; 500-conveyer belt.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
According to a first aspect of the present invention there is provided a multi-layer cylindrical screen wherein: FIG. 1 is a schematic view of a multi-layer cylindrical screen according to one embodiment of the present invention; FIG. 2 is a front view of a multi-layer cylindrical screen according to one embodiment of the present invention; FIG. 3 is a side view of a multi-layer cylindrical screen according to one embodiment of the present invention; fig. 4 is a schematic structural view of a discharge swash plate and a discharge pipe according to an embodiment of the present invention.
As shown in fig. 1 to 4, the multi-layer cylindrical screen comprises a frame 100 and a plurality of identical cylindrical screens 200, the frame 100 is multi-layer, the number of layers of the frame 100 is the same as that of the cylindrical screens 200, the rotating shaft of each cylindrical screen 200 is arranged on each layer of the frame 100, the axial directions of the plurality of cylindrical screens 200 are parallel to each other, and the plurality of cylindrical screens 200 are vertically arranged;
each cylindrical screen 200 comprises a first cylindrical screen 210 and a second cylindrical screen 220 with the same radius, the ends of the first cylindrical screen 210 and the second cylindrical screen 220 are connected, the mesh size of the first cylindrical screen 210 is smaller than that of the second cylindrical screen 220, a feed inlet 230 is arranged at one end of the first cylindrical screen 210 far away from the second cylindrical screen 220, and a discharge outlet 240 is arranged at one end of the second cylindrical screen 220 far away from the first cylindrical screen 210; the bottoms of the first cylindrical screen 210 and the second cylindrical screen 220 are provided with a discharge inclined plate 250, and the discharge inclined plate 250 is divided into a first discharge inclined plate 251 and a second discharge inclined plate 252 by a partition plate, so that the bottom of the first cylindrical screen 210 corresponds to the first discharge inclined plate 251 and the bottom of the second cylindrical screen 220 corresponds to the second discharge inclined plate 252;
each first discharging inclined plate 251 is communicated through a first discharging pipeline 261, so that the materials screened out from the bottom of each first cylindrical screen 210 can be collected to the bottom of the first discharging pipeline 261, each second discharging inclined plate 252 is communicated through a second discharging pipeline 262, and the materials screened out from the bottom of each second cylindrical screen 220 can be collected to the bottom of the second discharging pipeline 262; each discharge port 240 is provided with a guide chute 241 to allow the material screened out from the end of each second cylindrical screen 220 to be collected.
In the invention, a plurality of cylindrical screens 200 are arranged in a three-dimensional manner, one cylindrical screen 200 is arranged on one layer of frame body 100, two ends of a rotating shaft of the cylindrical screen 200 are arranged on the frame body 100, and the rotation of the cylindrical screen 200 can be realized by the driving of a motor. Through putting a plurality of drum screen cloth 200 vertical arrangement, occupation space is little, and a plurality of drum screen cloth 200 can work simultaneously, once carries out a large batch screening to the material, improves production efficiency.
The cylindrical screen 200 is mainly formed by splicing a first cylindrical screen 210 and a second cylindrical screen 220, the mesh sizes of the first cylindrical screen 210 and the second cylindrical screen 220 are different, so that materials with different particle sizes can be screened out, classification screening is realized, meanwhile, compared with a traditional nested structure, the spliced structure is more convenient for replacing screens, the length of the screens is long, the path track and the residence time of the materials in the cylindrical screen 200 are prolonged, and the materials with different particle sizes can be effectively screened out.
The mesh size of the first cylindrical screen 210 is smaller than that of the second cylindrical screen 220, the first cylindrical screen 210 is provided with a feed inlet 230 at the head part, and the second cylindrical screen 220 is provided with a discharge outlet 240 at the tail part; the bottom of the cylindrical screen 200 is provided with a discharge inclined plate 250, the discharge inclined plate 250 is divided into a first discharge inclined plate 251 and a second discharge inclined plate 252 by a partition plate, the bottom of the first cylindrical screen 210 corresponds to the first discharge inclined plate 251, and the bottom of the second cylindrical screen 220 corresponds to the second discharge inclined plate 252. The materials screened out from the bottom of each first cylindrical screen 210 arranged vertically fall onto each first discharge inclined plate 251 and then are collected through a first discharge pipeline 261; the material screened out from the bottom of each second cylindrical screen 220 in the vertical arrangement falls down to each second discharge inclined plate 252 and is collected through the second discharge pipeline 262. The material screened out from the bottoms of each first cylindrical screen 210 and each second cylindrical screen 220 can be collected respectively by arranging an empty box structure on one side of the discharge inclined plate 250, and arranging a partition plate in the middle.
Each cylindrical screen 200 may be operated independently or simultaneously, and in use, the material enters the cylindrical screen 200 from the feed inlet 230, the cylindrical screen 200 includes a first cylindrical screen 210 at a front stage and a second cylindrical screen 220 at a rear stage, the mesh size of the first cylindrical screen 210 is smaller than that of the second cylindrical screen 220, during the rolling and advancing process of the material in the cylindrical screen 200 under the rotation of the cylindrical screen 200, the material with different mesh sizes passing through the first cylindrical screen 210 and the second cylindrical screen 220 is screened, the small particle material screened by the first cylindrical screen 210 falls onto the first discharge inclined plate 251, falls onto the first discharge pipeline 261, the medium particle material screened by the second cylindrical screen 220 falls onto the second discharge inclined plate 252, and the large particle material not screened by the first cylindrical screen 210 and the second cylindrical screen 220 falls into the second discharge pipeline 262, and finally flows out from the discharge inlet 240 at the tail. The materials screened out by the first cylindrical screen 210 in each cylindrical screen 200 are finally collected in the first discharging pipeline 261, the materials screened out by the second cylindrical screen 220 in each cylindrical screen 200 are finally collected in the second discharging pipeline 262, and the materials flowing out from the discharging port 240 at the tail part of each cylindrical screen 200 are collected together through the material guide groove 241.
The term "the cylindrical screen includes the first cylindrical screen and the second cylindrical screen" as used herein means that the cylindrical screen may include other mesh-sized cylindrical screens, for example, a third cylindrical screen, a fourth cylindrical screen, etc., in addition to the first cylindrical screen and the second cylindrical screen, and the mesh size of the former cylindrical screen is smaller than the mesh size of the latter cylindrical screen. The cylindrical screen of the invention comprises a first cylindrical screen and a second cylindrical screen, and can be replaced by a closed type cylindrical screen which is formed by splicing the first cylindrical screen and the second cylindrical screen.
The current cylinder screen is limited in space in the screen cylinder, so that the material quantity of one-time screening is limited, the screening efficiency is low, and the requirement of mass screening production cannot be met. The screen with single aperture can only obtain coarse grain materials with the aperture size larger than the screen aperture and fine grain materials with the aperture size smaller than the screen aperture, the granular materials cannot be classified better, at present, some cylindrical screens are composed of inner and outer multilayer cylinders or screens, and although materials with various granularity can be screened at the same time, the inner and outer layer type structure is inconvenient to maintain and replace the cylinders or screens, and time and labor are wasted.
The multiple cylindrical screens 200 of the multilayer cylindrical screen can operate simultaneously, screen materials in a large batch at one time, improve production efficiency, and occupy small space by vertically arranging the multiple cylindrical screens 200. The cylindrical screen 200 is formed by splicing a first cylindrical screen 210, a second cylindrical screen 220 and the like end to end, the cylindrical screen is axially divided into a plurality of screen screening sections, screen meshes of the screen sections are sequentially increased from a feeding end to a discharging end, materials are sequentially screened from thin to thick in the rolling and sliding process, the screens can be replaced in a segmented mode, the replacement is more convenient, the length of the screens in the mode is longer, the rolling and sliding distance and the residence time of the materials in the cylindrical screen 200 are longer, and the screening is more effective. When a plurality of cylindrical screens 200 which are arranged up and down work simultaneously, the materials screened out from each section can be respectively collected, and when the materials are fed, the materials are fed into the plurality of cylindrical screens 200, and finally the materials with different required particle sizes can be respectively obtained, so that the production efficiency is high.
Preferably, a stair may be provided on each tier frame 100 for convenience in replacing and maintaining each cylindrical screen 200.
In a preferred embodiment, the height of cylindrical screen 200 at the end near feed inlet 230 is greater than the height of cylindrical screen 200 at the end near discharge outlet 240.
Preferably, the inclination angle of the cylindrical screen 200 is 3 to 8 degrees, and more preferably, the inclination angle of the cylindrical screen 200 is 5 degrees, for example, 3 degrees, 5 degrees, or 8 degrees.
The cylinder screen 200 is inclined by a certain angle, so that the screen can move forward in the rotating process, the inclination angle is too small, the material moves in the screen slowly, the efficiency is low, the inclination angle is too large, the material moves in the screen quickly, and the screening is insufficient.
In a preferred embodiment, the frame 100 is 2 to 4 layers, such as 2, 3, or 4 layers.
When the frame body is two layers, the number of the cylindrical screens 200 is two, when the frame body is three layers, the number of the cylindrical screens 200 is three, and when the frame body is four layers, the number of the cylindrical screens 200 is four. The cylindrical screen 200 is too much, the occupied space is too large, and the cylindrical screen 200 is too little, which is not beneficial to improving the production efficiency.
In a preferred embodiment, the cylindrical screen 200 has a cylinder length of 5 to 10m, for example 5m, 6m, 7m, 8m, 9m or 10m.
The length of the cylinder body of the cylindrical screen 200 can be adjusted according to actual production conditions, the length of the cylinder body is too short, the screening effect is poor, the length of the cylinder body is too long, and the cylinder body is easy to be unstable when rotating.
In a preferred embodiment, the cylindrical screen 200 has a cylinder diameter of 0.7 to 1.5m, for example 0.7m, 0.8m, 0.9m, 1m, 1.2m or 1.5m.
The cylindrical screen 200 with a specific cylinder diameter range can effectively screen materials with different particle diameters, the diameter of the cylinder is too small, the capacity of the contained materials is limited, the diameter of the cylinder is too large, and the screening effect is poor. The diameter of the cylinder body can be adjusted according to different yields and screening amounts.
In a preferred embodiment, the multi-layer cylindrical screen further comprises feeding means, as shown in fig. 5; a distributor 400 is provided below the outlet of the feeding device, and the distributor 400 communicates with each of the feed inlets 230 through a feed pipe.
Preferably, the feeding device is a vibratory feeder.
The feeding device can feed materials into a plurality of cylindrical screens 200 at the same time, and the distributor 400 is arranged below the outlet of the feeding device, so that the materials output by the feeding device can be uniformly fed into different cylindrical screens 200. When the device is used, materials are fed into the feeding device, and the materials can enter each cylindrical screen 200 uniformly at the same time to screen, so that a large amount of materials can be screened simultaneously, and the production efficiency is improved.
Preferably, the dispenser 400 outlet is provided with a gate valve.
When a certain cylindrical screen 200 fails through the cutoff action of the gate valve, materials can not enter the cylindrical screen 200 by closing the gate valve, so that the cylindrical screen 200 can be maintained independently.
According to a second aspect of the present invention there is provided a screening system wherein: fig. 5 is a schematic view of a screening system according to an embodiment of the present invention.
As shown in fig. 5, the screening system at least comprises a group of the multi-layer cylindrical screen, and the screening system can also be composed of a plurality of groups of the multi-layer cylindrical screen side by side, so that the plurality of groups of chopped cylindrical screens can work simultaneously to further improve the production efficiency. The screening system has the same advantages as the multi-layer cylindrical screen described above.
In a preferred embodiment, the screening system further comprises: a first elevator, a first silo, a second elevator, and a second silo (not shown in the figures);
the material at the bottom of the first discharging pipeline 261 can enter a first lifting machine, and the material in the first lifting machine can enter a first feed bin; the material at the bottom of the second discharge line 262 can enter the second elevator, and the material in the second elevator can enter the second bin.
Through setting up first lifting machine, first feed bin, second lifting machine and second feed bin, can be with the material of screening out in the storage feeding storehouse of lifting machine direct, saved the manpower, degree of automation is high.
In a preferred embodiment, the screening system further comprises: a conveyor belt 500; the material in the chute 241 can flow onto the conveyor belt 500.
By providing the conveyor belt 500, the waste (with the particle size larger than the required size) screened out from the tail of the cylindrical screen 200 can automatically flow onto the conveyor belt 500, and is conveyed to other equipment by the conveyor belt 500 for treatment, so that the working efficiency is improved. The elevator, the bin and the conveying belt 500 are arranged, so that the working efficiency is improved, the labor is saved, and the workload is reduced.
According to a third aspect of the present invention there is provided the use of a multi-layer cylindrical screen as described above or a screening system as described above in the production of a ceramsite proppant.
Taking the production of a ceramic proppant as an example, the working process of the multilayer cylinder screen and screening system of the invention is specifically described:
the multi-layer cylinder screen is arranged into three layers and is placed in a three-dimensional way, ceramsite propping agent materials are added into the feeding machine 300, the feeding machine 300 evenly feeds materials to the feed inlets 230 of the three cylinder screens 200 through the distributor 400, after the materials enter the cylinder screens 200, the materials roll and slide in the cylinder screens 200 under the rotation action of the cylinder screens 200, small-sized cue ball materials screened out by the first cylinder screen 210 fall onto the first discharge inclined plate 251, slide into the first discharge pipeline 261, large-sized cue ball materials screened out by the second cylinder screen 220 fall onto the second discharge inclined plate 252, slide into the second discharge pipeline 262, and ceramsite propping agents (with more than required particle sizes) which are not screened out by the first cylinder screen 210 and the second cylinder screen 220 finally flow out from the discharge outlet 240 at the tail. The small cue balls screened out by the first cylindrical screen 210 in each cylindrical screen 200 finally collect to a first discharge pipeline 261 and then enter a lifter, the small cue balls are lifted to a small cue ball bin by the lifter, the large cue balls screened out by the second cylindrical screen 220 in each cylindrical screen 200 finally collect to a second discharge pipeline 262 and then enter the lifter, the large cue ball bin is lifted to the large cue ball bin by the lifter, and the waste materials flowing out from a discharge port 240 at the tail of each cylindrical screen 200 flow to a conveying belt 500 through a guide chute 241 and are conveyed to waste treatment equipment by the conveying belt 500 for treatment.
When the whole set of multilayer cylinder screen works, only one person is needed to operate, so that the labor force is reduced, the production efficiency is improved, the screening efficiency is improved, particularly, the length of a screen drum is improved, two kinds of large and small mother balls can be effectively screened out, the production efficiency of the next working procedure is improved, the time for forming a ball forming disc of the large mother ball is shortened, the small mother ball can be independently formed, and the yield is improved. The whole set of multilayer cylinder screen has small occupied area, high working efficiency, high automation degree and convenient screen replacement and maintenance, and saves manpower.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (10)

1. The multi-layer cylinder screen is characterized by comprising a plurality of layers of frame bodies and a plurality of same cylinder screens, wherein the number of layers of the frame bodies is the same as that of the cylinder screens, the rotating shaft of each cylinder screen is erected on each layer of the frame bodies, the axial directions of the cylinder screens are parallel to each other, and the cylinder screens are vertically arranged;
the inclination angle of the cylindrical screen is 3-8 degrees;
each cylindrical screen comprises a first cylindrical screen and a second cylindrical screen with the same radius, the ends of the first cylindrical screen and the second cylindrical screen are connected, the mesh size of the first cylindrical screen is smaller than that of the second cylindrical screen, a feed inlet is formed in one end, far away from the second cylindrical screen, of the first cylindrical screen, and a discharge outlet is formed in one end, far away from the first cylindrical screen, of the second cylindrical screen; the bottoms of the first cylindrical screen and the second cylindrical screen are provided with discharge inclined plates, the discharge inclined plates are divided into a first discharge inclined plate and a second discharge inclined plate by a partition plate, so that the bottom of the first cylindrical screen corresponds to the first discharge inclined plate, and the bottom of the second cylindrical screen corresponds to the second discharge inclined plate;
each first discharging inclined plate is communicated through a first discharging pipeline, so that the materials screened out from the bottom of each first cylindrical screen can be collected to the bottom of the first discharging pipeline, each second discharging inclined plate is communicated through a second discharging pipeline, and the materials screened out from the bottom of each second cylindrical screen can be collected to the bottom of the second discharging pipeline; and each discharge hole is provided with a guide groove, so that materials screened out from the tail of each second cylindrical screen can be collected together.
2. The multi-layer cylindrical screen of claim 1, wherein the height of the end of the cylindrical screen adjacent the inlet is greater than the height of the end of the cylindrical screen adjacent the outlet.
3. The multi-layer cylindrical screen of claim 1, wherein the frame is 2 to 4 layers.
4. A multi-layer cylindrical screen as claimed in any one of claims 1 to 3, wherein the cylindrical screen has a cylinder length of 5 to 10m.
5. A multi-layer cylindrical screen as claimed in any one of claims 1 to 3, wherein the cylindrical screen has a cylinder diameter of 0.7 to 1.5m.
6. A multi-layer cylindrical screen as claimed in any one of claims 1 to 3, wherein the multi-layer cylindrical screen further comprises a feeding means;
and a distributor is arranged below the outlet of the feeding device and is respectively communicated with each feeding hole through a feeding pipe.
7. A screening system comprising a multi-layer cylindrical screen according to any one of claims 1-6.
8. The screening system of claim 7, further comprising: the first lifting machine, the first storage bin, the second lifting machine and the second storage bin;
the material at the bottom of the first discharging pipeline can enter the first lifting machine, and the material in the first lifting machine can enter the first storage bin; the material of second ejection of compact pipeline bottom can get into the second lifting machine, the material in the second lifting machine can get into the second feed bin.
9. The screening system of claim 7 or 8, further comprising: a conveyor belt;
the material in the guide chute can flow onto the conveyor belt.
10. Use of a multi-layer cylindrical screen as claimed in any one of claims 1 to 6 or a screening system as claimed in any one of claims 7 to 9 in the production of ceramsite proppants.
CN201710423630.3A 2017-06-07 2017-06-07 Multi-layer cylinder screen, screening system and application thereof Active CN107138386B (en)

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CN116692529B (en) * 2023-08-01 2023-10-27 河北鑫源输送机械有限公司 Inclined adjustable anti-skid crawler conveyor

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JP2006320796A (en) * 2005-05-17 2006-11-30 Turbo Kogyo Co Ltd Cylindrical screen classifier
CN2882817Y (en) * 2005-12-28 2007-03-28 攀钢集团攀枝花钢铁研究院 Cylinder screen
CN202387663U (en) * 2011-08-17 2012-08-22 安徽正宇面粉有限公司 Multiple-layer cylindrical screen
CN203830260U (en) * 2014-04-28 2014-09-17 安阳新达自动检测设备有限公司 Sample grading drum screen
CN206838469U (en) * 2017-06-07 2018-01-05 郑州市润宝耐火材料有限公司 Multi-layer cylinder sieves and screening system

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JP2006320796A (en) * 2005-05-17 2006-11-30 Turbo Kogyo Co Ltd Cylindrical screen classifier
CN2882817Y (en) * 2005-12-28 2007-03-28 攀钢集团攀枝花钢铁研究院 Cylinder screen
CN202387663U (en) * 2011-08-17 2012-08-22 安徽正宇面粉有限公司 Multiple-layer cylindrical screen
CN203830260U (en) * 2014-04-28 2014-09-17 安阳新达自动检测设备有限公司 Sample grading drum screen
CN206838469U (en) * 2017-06-07 2018-01-05 郑州市润宝耐火材料有限公司 Multi-layer cylinder sieves and screening system

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