CN115400947A - Device and method for automatically purging lump ore vibrating screen - Google Patents
Device and method for automatically purging lump ore vibrating screen Download PDFInfo
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- CN115400947A CN115400947A CN202211166314.XA CN202211166314A CN115400947A CN 115400947 A CN115400947 A CN 115400947A CN 202211166314 A CN202211166314 A CN 202211166314A CN 115400947 A CN115400947 A CN 115400947A
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- Prior art keywords
- compressed air
- vibrating screen
- screen
- lump ore
- vibrating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/50—Cleaning
- B07B1/55—Cleaning with fluid jets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
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- Combined Means For Separation Of Solids (AREA)
Abstract
The invention belongs to the field of metallurgy, and relates to a device and a method for automatically purging a lump ore vibrating screen. The device comprises a vibrating screen body and a plurality of compressed air branch pipes arranged on one side of the box wall of the vibrating screen body, wherein each compressed air branch pipe is respectively communicated with a distributor at the front end of a compressed air main pipe; the screen cloth in the vibrating screen body is divided into an upper layer and a lower layer by 2 layers, and the compressed air branch pipe is arranged at a position which is about 2cm higher than the screen cloth. The invention solves the problems that the cover plate of the dust removing cover of the lump ore screening equipment is opened manually, and the vibrating screen is blown and cleaned by compressed air in a narrow space and in a dark environment; the blockage of the screen holes of the lump ore vibrating screen can be cleaned in a short time, and the screening efficiency is effectively improved; meanwhile, the operation of fixing the frequency and the diameter of the sieve holes of the vibrating screen can be realized, the situations that lump ore is sieved and the oversize material is more in powder are prevented, the utilization rate of the lump ore is fully utilized, and the pig iron cost is reduced.
Description
Technical Field
The invention belongs to the field of metallurgy, and relates to a device and a method for automatically purging a lump ore vibrating screen.
Background
The lump ore screening operation in the metallurgical process is an indispensable link, so that the lump ore screening is rapidly developed from offline manual mechanical screening to online screening, and the screening equipment is continuously updated, so that the problems of more faults and shorter service life of the screening equipment are basically solved, but some places needing to be perfected exist.
At present, lump ore screening of most steel plants is performed on-line screening, and core components in screening equipment are subjected to vibration screening at an upper layer and a lower layer to perform step-by-step operation, so that the screening grade of the lump ore is improved; the screen cloth material adopts the polyurethane material, can reduce the screen cloth and block up.
The existing online screening is operated in a closed environment, more lump ores and wet lump ores are screened for a long time, the aperture of a screen mesh of a vibrating screen is easy to block, and in order to improve the screening effect, later-stage manual cleaning is very difficult and the effect is not good.
Under the condition of not conflicting with the lump ore screening operation, the blockage of the screen hole diameter of the vibrating screen is automatically cleaned in time, and the screening effect of the lump ore is improved.
Disclosure of Invention
In view of this, the present invention provides an apparatus and a method for automatically purging a lump ore vibrating screen, which uses compressed air to automatically purge and clean blockages in screen holes of the lump ore vibrating screen.
In order to achieve the purpose, the invention provides the following technical scheme: a device for automatically purging a lump ore vibrating screen comprises a vibrating screen body and a plurality of compressed air branch pipes arranged on one side of the box wall of the vibrating screen body, wherein each compressed air branch pipe is communicated with a distributor which is communicated with a compressed air main pipe; the vibrating screen body is internally provided with an upper layer of screen and a lower layer of screen for screening lump ores, and the compressed air branch pipe is arranged at a position about 2cm away from the screen.
Optionally, a vibration source is installed on the vibrating screen body, and the vibration source is a vibration exciter of a vibrating motor.
Optionally, the screen cloth is provided with two-layer about, and the lump ore falls into upper screen cloth through the feed inlet and carries out preliminary screening, and the undersize thing that upper screen cloth sieved after falls into lower floor's screen cloth and carries out the screening at last again.
Optionally, the diameter of the mesh of the upper layer screen is larger than that of the mesh of the lower layer screen.
Optionally, the screen is provided with a certain inclination angle and inclines downwards towards the discharge port along the feed inlet, so that lump ore rolls on the screen conveniently.
Optionally, the compressed air branch pipes are provided with rows matched with the number of the layers of the screen, and the number of each row is matched with the length of the screen.
Optionally, the multiple compressed air branch pipes are connected in parallel and then communicated with a distributor at the front end of the compressed air main pipe, and the compressed air main pipe is provided with an automatic regulating valve.
Optionally, the diameter of the compressed air pipeline is 2-3 cm.
Optionally, the vibrating screen body is a sealing device, and the top of the vibrating screen body is communicated with a dust removal device.
The method for automatically purging the lump ore vibrating screen comprises the following steps of:
s1, uniformly feeding materials into a feeding hole of a vibrating screen body from a feeding machine;
s2, opening a vibration exciter of a vibration motor serving as a vibration source on the vibrating screen body, throwing the materials on the drying screen, and simultaneously making forward linear motion;
s3, generating oversize products and undersize products with medium specifications through the multiple layers of screens, and discharging the oversize products and the undersize products from respective discharge ports;
s4, after discharging, screening the non-operation time nodes on line, and opening an automatic regulating valve on a compressed air main pipe to automatically purge and clean the screen;
and S5, after cleaning, automatically closing the automatic regulating valve on the compressed air pipeline when next line screening equipment works, and repeating the steps.
The invention has the beneficial effects that:
(1) The device and the method for automatically purging the lump ore vibrating screen can remotely control the automatic regulating valve on the compressed air pipeline to automatically purge and clean; the cover plate on the dust removing cover of the lump ore vibration screen is prevented from being opened manually in the prior art, and the oxygen pipe is connected with compressed air for operation in a narrow space and in a dark environment;
(2) The device and the method for automatically purging the lump ore vibrating screen have high operation efficiency, can quickly clean the screen, solve the problem that the manual operation cannot clean the dead angle area, prolong the time and avoid the artificial safety risk;
(3) According to the device and the method for automatically purging the lump ore vibrating screen, the screen cleaning effect is good, the operation is stable, and the pig iron cost is reduced; the problem that due to unstable factors caused by manual operation, the vibration frequency of the vibrating screen or the size of the screen is required to be adjusted to improve the screening granularity of the lump ore during long-time operation is solved, and the lump ore is excessively screened;
(4) According to the device and the method for automatically purging the lump ore vibrating screen, the cover plate on the dust removing cover of the vibrating screen is not required to be opened during operation, and dust overflow is avoided.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For a better understanding of the objects, aspects and advantages of the present invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic view of the overall structure of the present invention.
Reference numerals: the device comprises a vibrating screen body 1, a compressed air branch pipe 2, a compressed air main pipe 3, an automatic regulating valve 4, an upper-layer screen 5, a lower-layer screen 6 and a distributor 7.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustration only and not for the purpose of limiting the invention, shown in the drawings are schematic representations and not in the form of actual drawings; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and the specific meaning of the terms described above will be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1, a device for automatically purging a lump ore vibrating screen includes a vibrating screen body 1, and a plurality of compressed air branch pipes 2 arranged on one side of a box wall of the vibrating screen body 1, each compressed air branch pipe being respectively communicated with a distributor 7 at the front end of a compressed air main pipe; the vibrating screen comprises a vibrating screen body 1, wherein an upper layer and a lower layer of 2 layers of screen meshes which are communicated with a feed inlet and a discharge outlet are arranged on the vibrating screen body 1, a compressed air branch pipe 2 is arranged at a position about 2cm from the screen meshes, a vibration source is arranged on the vibrating screen body 1 and is a vibration motor exciter, an upper layer of screen mesh 5 is provided with the feed inlet and the discharge outlet, undersize after the upper layer of screen mesh 5 is screened falls into a lower layer of screen mesh 6, the diameter of a screen mesh of the upper layer of screen mesh 5 is larger than that of the screen mesh of the lower layer of screen mesh 6, the screen mesh is provided with a certain inclination angle and inclines downwards along the feed inlet in the direction of the discharge outlet, the compressed air branch pipe 2 is provided with a row number matched with the number of screen meshes, the number of each row is matched with the length of the screen mesh, the plurality of compressed air branch pipes 2 are communicated with a distributor 7 at the front end of a compressed air main pipe after being connected in parallel, an automatic regulating valve 4 is arranged on the compressed air main pipe 3, the diameter of the compressed air branch pipes 2 is 2-3 cm, the vibrating screen body 1 is a sealing device, and the top is communicated with a dust removing device.
In the embodiment, the compressed air main pipe 3 is communicated with the distributor 7, the distributor 7 is connected with the compressed air branch pipe 2, and a part of hard pipes penetrate through the wall of the vibrating screen body 1; the front ends of the compressed air pipe branch pipes 2 are connected by hoses.
In this embodiment, 2 front ends of compressed air branch pipes are close to the shale shaker body and adopt one section hose connection, avoid holistic compressed air branch pipe 2 to increase motor load when the shale shaker body vibrates.
The method for automatically purging the lump ore vibrating screen comprises the following steps of:
s1, uniformly feeding materials into a feeding hole of a vibrating screen body 1 from a feeding machine;
s2, opening a vibration exciter of a vibration motor serving as a vibration source on the vibrating screen body 1, throwing the materials on the drying screen, and simultaneously making forward linear motion;
s3, generating oversize products and undersize products with medium specifications through the multiple layers of screens, and discharging the oversize products and the undersize products from respective discharge ports;
s4, after discharging, opening an automatic regulating valve 4 on the compressed air main pipe 3 to automatically purge and clean the screen by using the time nodes which are not operated and screened on line;
and S5, after cleaning, automatically closing the automatic regulating valve 4 on the compressed air pipeline 2 when the next line screening equipment works, and repeating the steps.
The invention solves the problems that the cover plate of the dust removing cover of the lump ore screening equipment is opened manually, and the vibrating screen is blown and cleaned by compressed air in a narrow space and in a dark environment; the blockage of the screen holes of the lump ore vibrating screen can be cleaned in a short time, and the screening efficiency is effectively improved; meanwhile, the operation of fixing the frequency and the diameter of the sieve holes of the vibrating screen can be realized, the situations that lump ore is sieved and the oversize material is more in powder are prevented, the utilization rate of the lump ore is fully utilized, and the pig iron cost is reduced.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides an automatic sweep device of lump ore shale shaker which characterized in that: the vibrating screen comprises a vibrating screen body and a plurality of compressed air branch pipes arranged on one side of the box wall of the vibrating screen body, wherein each compressed air branch pipe is respectively communicated with a distributor which is communicated with a compressed air main pipe; the vibrating screen body is internally provided with an upper layer of screen mesh and a lower layer of screen mesh for screening lump ores, and the compressed air branch pipe is arranged at the position 2cm away from the screen mesh.
2. The apparatus of claim 1, wherein the apparatus comprises: the vibrating screen body is provided with a vibration source which is a vibration exciter of a vibrating motor.
3. The apparatus of claim 1, wherein the apparatus comprises: the screen cloth is provided with upper and lower two-layer, and the lump ore falls into upper screen cloth through the feed inlet and carries out preliminary screening, and the undersize thing that the upper screen cloth was sieved after falls into lower floor's screen cloth and sieves at last again.
4. The device for automatically purging lump ore vibrating screens as claimed in claim 3, wherein: the diameter of the sieve pore of the upper layer sieve is larger than that of the sieve pore of the lower layer sieve.
5. The apparatus of claim 1, wherein the apparatus further comprises: the screen cloth sets up inclination, and inclines downwards toward the discharge gate along the feed inlet, is convenient for lump ore to roll on the screen cloth.
6. The apparatus of claim 1, wherein the apparatus further comprises: the compressed air branch pipes are provided with rows matched with the number of the layers of the screen, and the number of each row is matched with the length of the screen.
7. The apparatus of claim 1, wherein the apparatus further comprises: the plurality of compressed air branch pipes are connected in parallel and then communicated with a distributor at the front end of a compressed air main pipe, and an automatic regulating valve is installed on the compressed air main pipe.
8. The apparatus of claim 7, wherein the apparatus for automatically purging the lump ore shaker further comprises: the diameter of the compressed air pipeline is 2-3 cm.
9. The apparatus of claim 1, wherein the apparatus further comprises: the vibrating screen body is a sealing device, and the top of the vibrating screen body is communicated with a dust removal device.
10. A method for automatically purging a lump ore vibrating screen, which applies the device for automatically purging a lump ore vibrating screen as claimed in any one of claims 1 to 9, and which comprises the steps of:
s1, uniformly feeding materials into a feeding hole of a vibrating screen body from a feeding machine;
s2, opening a vibration exciter of a vibration motor serving as a vibration source on the vibrating screen body, throwing the materials on the drying screen, and simultaneously making forward linear motion;
s3, generating oversize products and undersize products with medium specifications through a plurality of layers of screens, and discharging the oversize products and the undersize products from respective discharge ports;
s4, after discharging, opening an automatic regulating valve on a compressed air main pipe to automatically purge and clean the screen by using the time nodes which are not operated and screened on line;
and S5, after cleaning, automatically closing the automatic regulating valve on the compressed air pipeline when next line screening equipment works, and repeating the steps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211166314.XA CN115400947A (en) | 2022-09-23 | 2022-09-23 | Device and method for automatically purging lump ore vibrating screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211166314.XA CN115400947A (en) | 2022-09-23 | 2022-09-23 | Device and method for automatically purging lump ore vibrating screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115400947A true CN115400947A (en) | 2022-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211166314.XA Pending CN115400947A (en) | 2022-09-23 | 2022-09-23 | Device and method for automatically purging lump ore vibrating screen |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010104138A (en) * | 2000-05-13 | 2001-11-24 | 이구택 | screen open apparatus equipped a dust collector function |
| CN1686623A (en) * | 2005-04-30 | 2005-10-26 | 王洪利 | Full automatic pulverized coal sieve |
| CN207385919U (en) * | 2017-09-30 | 2018-05-22 | 厦门众果食品科技有限公司 | A kind of nut bits screening plant |
| CN108620319A (en) * | 2018-06-12 | 2018-10-09 | 王荣 | A kind of novel cleaning unit |
| CN211807210U (en) * | 2020-02-25 | 2020-10-30 | 东莞市山普科技有限公司 | Vibrating screening machine |
| CN212143443U (en) * | 2020-04-24 | 2020-12-15 | 知行良知实业股份有限公司 | A anti-clogging device for pitch reworked material divides sieve equipment |
| CN114377964A (en) * | 2022-01-24 | 2022-04-22 | 山东省农业机械科学研究院 | Membrane impurity separation winnowing machine sieve pore blockage removing device and method |
-
2022
- 2022-09-23 CN CN202211166314.XA patent/CN115400947A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010104138A (en) * | 2000-05-13 | 2001-11-24 | 이구택 | screen open apparatus equipped a dust collector function |
| CN1686623A (en) * | 2005-04-30 | 2005-10-26 | 王洪利 | Full automatic pulverized coal sieve |
| CN207385919U (en) * | 2017-09-30 | 2018-05-22 | 厦门众果食品科技有限公司 | A kind of nut bits screening plant |
| CN108620319A (en) * | 2018-06-12 | 2018-10-09 | 王荣 | A kind of novel cleaning unit |
| CN211807210U (en) * | 2020-02-25 | 2020-10-30 | 东莞市山普科技有限公司 | Vibrating screening machine |
| CN212143443U (en) * | 2020-04-24 | 2020-12-15 | 知行良知实业股份有限公司 | A anti-clogging device for pitch reworked material divides sieve equipment |
| CN114377964A (en) * | 2022-01-24 | 2022-04-22 | 山东省农业机械科学研究院 | Membrane impurity separation winnowing machine sieve pore blockage removing device and method |
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