CN115318422B - Method for treating iron passing of gyratory crusher - Google Patents
Method for treating iron passing of gyratory crusher Download PDFInfo
- Publication number
- CN115318422B CN115318422B CN202211068507.1A CN202211068507A CN115318422B CN 115318422 B CN115318422 B CN 115318422B CN 202211068507 A CN202211068507 A CN 202211068507A CN 115318422 B CN115318422 B CN 115318422B
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- Prior art keywords
- main shaft
- crushing
- crushing motor
- set value
- pressure
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000003921 oil Substances 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 21
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 13
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 9
- 238000005336 cracking Methods 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract 2
- 238000003672 processing method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2/00—Crushing or disintegrating by gyratory or cone crushers
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a method for treating iron passing of a gyratory crusher, which comprises the following steps: detecting the hydraulic pressure of the main shaft and the load of the crushing motor; stopping feeding and reducing the rotating speed of the crushing motor when the pressure of the main shaft is not more than a set value P1 and the load of the crushing motor is not less than a set value W1, so that the pressure of the main shaft of the crusher is not less than a set value P2 and the load of the crushing motor is not more than a set value W2; when the pressure is more than or equal to a set value P2, starting an electric unloading valve or a hydraulic oil pump by the system, descending a main shaft, and discharging non-breakable objects; recovering the rotation speed of the crushing motor; resetting a main shaft: the hydraulic motor rotates positively, the oil cylinder charges oil, the main shaft ascends, and the set position is reached; and (3) feeding is recovered: the feeding system is started and feeding is resumed. The processing method of the gyratory crusher iron passing through avoids upward movement of the main shaft of the crusher and cracking damage of the frame caused by upward movement of the main shaft of the crusher, greatly improves material cleaning efficiency by discharging through the discharge port, reduces downtime, avoids manual material cleaning, and reduces safety accidents of casualties.
Description
Technical Field
The invention relates to a method for treating iron passing of a gyratory crusher, and belongs to the technical field of material crushing.
Background
At present, a gyratory crusher is generally used in a coarse ore crushing stage of a mine, and in order to improve the ore passing rate and the crushing efficiency, cone angles of a crushing cavity and a main shaft are designed to be large, and extrusion force of crushed materials can enable the main shaft to move upwards at certain positions of the crushing cavity. Especially when uncrushable materials (such as iron blocks) are blocked at the positions, the main shaft of the crusher is often caused to move upwards, and when the uncrushable materials block the crushing cavity (commonly called iron passing phenomenon, hereinafter simply called iron passing phenomenon), the current treatment method is to stop feeding, stop the operation of the crushing motor, and after the main shaft is reset, the main shaft moves downwards, opens a discharge hole and manually cleans ores in the crushing cavity. The treatment method has long use time, high labor intensity and high risk, and can cause serious damage to the crusher if iron cannot be found in time.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a method for treating the iron passing of the gyratory crusher, which can avoid damage to the gyratory crusher caused by the iron passing and reduce the downtime caused by the iron passing.
In order to achieve the above purpose, the method for treating the iron passing of the gyratory crusher comprises the following steps:
s1, detecting hydraulic pressure of a main shaft and load of a crushing motor;
s2, stopping feeding and reducing the rotating speed of the crushing motor when the pressure of the main shaft is not more than a set value P1 and the load of the crushing motor is not less than a set value W1, so that the pressure of the main shaft of the crusher is not less than a set value P2 and the load of the crushing motor is not more than a set value W2;
s3, when the pressure is more than or equal to a set value P2, starting an electric unloading valve or a hydraulic oil pump by the system, descending a main shaft, and discharging non-breakable objects;
s4, recovering the rotation speed of the crushing motor;
s5, resetting a main shaft: the hydraulic motor rotates positively, the oil cylinder charges oil, the main shaft ascends, and the set position is reached;
s6, feeding is recovered: the feeding system is started and feeding is resumed.
As an improvement, the electric unloading valve is arranged on a control loop of the oil cylinder.
As an improvement, the spindle is eccentrically tapered.
As an improvement, the crushing motor is driven by variable frequency.
Compared with the prior art, the method for treating the iron passing of the gyratory crusher avoids the upward movement of the main shaft of the crusher and the cracking damage of the frame caused by the upward movement of the main shaft of the crusher; ore and uncrushable material in the crushing chamber are discharged through the bin outlet and have improved clear material efficiency greatly, reduce down time, avoid artifical clear material, reduce the incident of casualties.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a process flow according to the present invention;
in the figure: 1. the device comprises a controller, 2, a pressure sensor, 3, a crushing motor load detection device, 4, a crushing motor, 5, a hydraulic oil pump, 6, a discharge port, 7, a crushing host, 8, a main shaft, 9, a frame, 10 and an oil cylinder.
Description of the embodiments
The present invention will be described in further detail below in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in this description of the invention are for the purpose of describing particular embodiments only and are not intended to be limiting of the invention.
As shown in fig. 1 and 2, a method for treating iron passing of a gyratory crusher comprises a crushing main machine 7 and a control system connected with the crushing main machine 7; the crushing main machine 7 is connected with the crushing motor 4, the crushing main machine 7 comprises a main shaft 8 and a frame 9, a space between the main shaft 8 and the frame 9 is a crushing cavity, the lower part of the crushing cavity is provided with a discharge opening 6, materials are extruded and crushed in the crushing cavity by the frame 9 and the main shaft 8 and then discharged through the discharge opening 6, the position of the main shaft 8 is adjusted, the size of the discharge opening 6 can be adjusted, the main shaft 8 moves downwards, and the discharge opening 6 is enlarged; the main shaft 8 is connected with the oil cylinder 10, the oil cylinder 10 is connected with the hydraulic oil pump 5, the oil cylinder 10 is driven to lift by the positive and negative rotation of the hydraulic oil pump 5, and the position of the main shaft 8 can be adjusted by the lifting of the oil cylinder 10;
the control system comprises a controller 1, a pressure sensor 2 and a crushing motor load detection device 3, wherein the pressure sensor 2 and the crushing motor load detection device 3 are respectively connected with the controller 1, the pressure sensor 2 is connected between an oil cylinder 10 and a hydraulic oil pump 5, the hydraulic oil pump 5 is connected with the controller 1, the crushing motor load detection device 3 is connected with a crushing motor 4, and the rotating speed of the crushing motor 4 and the position of a main shaft 8 are adjusted according to the pressure of a hydraulic system of the main shaft 8 and the load of the crushing motor 4; wherein the main shaft 8 is in an eccentric cone shape, and the eccentric cone-shaped main shaft and the crushing main machine 7 are matched to crush materials with better effect; the crushing motor 4 is driven by variable frequency, so that the power output of the crushing motor 4 can be conveniently adjusted;
the specific treatment method comprises the following steps:
s1, a controller 1 detects the hydraulic circuit pressure of a gyratory crusher through a pressure sensor 2, and detects the load of a crushing motor 4 through a crushing motor load detection device 3;
s2, when the value of the pressure sensor 2 is smaller than or equal to a set value P1 and the output value of the crushing motor load detection device 3 is larger than or equal to a set value W1, the controller 1 judges that the crushing host 7 is over-iron; the controller 1 outputs a command (signal) to stop feeding, the command (signal) is output to a driving frequency converter of the crushing motor 4, the driving frequency is reduced, the rotating speed of the crushing motor 4 is reduced, the lifting force of a main shaft 8 of the crusher is reduced, the crushing force of the main shaft 8 on materials is reduced, the reaction force of the materials on the main shaft 8 is reduced, when the output of a pressure sensor 2 of a hydraulic system of the main shaft 8 is increased to a set value P2, the hydraulic system rapidly discharges oil of the oil cylinder 10 through an electric unloading valve arranged on the oil cylinder 10, the main shaft 8 rapidly descends, a discharge hole 6 is increased, and materials and unbreakable materials in a crushing cavity are rapidly discharged;
s3, after the materials in the crushing cavity are emptied, the controller 1 increases the rotating speed of the crushing motor 4 to the rated rotating speed;
s4, starting the hydraulic oil pump 5 to rotate positively, filling oil into the oil cylinder, and lifting the main shaft 8 to a set position;
s5, starting the crusher to feed, and starting a new round of work.
The method for treating the iron passing of the gyratory crusher avoids upward movement of the main shaft of the crusher and cracking damage of the frame caused by upward movement of the main shaft of the crusher; ore and uncrushable material in the crushing chamber are discharged through the bin outlet and have improved clear material efficiency greatly, reduce down time, avoid artifical clear material, reduce the incident of casualties.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the invention.
Claims (4)
1. The method for treating the iron passing of the gyratory crusher is characterized by comprising a crushing main machine (7) and a control system connected with the crushing main machine (7); the crushing main machine (7) is connected with the crushing motor (4), the crushing main machine (7) comprises a main shaft (8) and a frame (9), a space between the main shaft (8) and the frame (9) is a crushing cavity, the lower part of the crushing cavity is a discharge port (6), and materials are extruded and crushed in the crushing cavity by the frame (9) and the main shaft (8) and then discharged through the discharge port (6); the main shaft (8) is connected with the oil cylinder (10), the oil cylinder (10) is connected with the hydraulic oil pump (5), the oil cylinder (10) is driven to lift by the positive and negative rotation of the hydraulic oil pump (5), and the position of the main shaft (8) is adjusted by the lifting of the oil cylinder (10); the control system comprises a controller (1), a pressure sensor (2) and a crushing motor load detection device (3), wherein the pressure sensor (2) and the crushing motor load detection device are respectively connected with the controller (1), the pressure sensor (2) is connected between an oil cylinder (10) and a hydraulic oil pump (5), the hydraulic oil pump (5) is connected with the controller (1), the crushing motor load detection device (3) is connected with a crushing motor (4), and the rotating speed of the crushing motor (4) and the position of the main shaft (8) are adjusted according to the pressure of a hydraulic system of the main shaft (8) and the load of the crushing motor (4);
the method comprises the following steps:
s1, detecting hydraulic pressure of a main shaft (8) and load of a crushing motor (4);
s2, stopping feeding and reducing the rotating speed of the crushing motor (4) when the pressure of the main shaft (8) is smaller than or equal to a set value P1 and the load of the crushing motor (4) is larger than or equal to a set value W1 when the main shaft of the crusher moves upwards due to the fact that non-crushable materials are blocked at certain positions of the crushing cavity, so that the pressure of the main shaft (8) of the crusher is larger than or equal to a set value P2 and the load of the crushing motor (4) is smaller than or equal to a set value W2;
s3, when the pressure is more than or equal to a set value P2, starting an electric unloading valve or a hydraulic oil pump by the system, descending a main shaft (8), and discharging non-breakable objects;
s4, recovering the rotating speed of the crushing motor (4);
s5, resetting the main shaft (8): the hydraulic motor rotates positively, the oil cylinder charges oil, the main shaft ascends, and the set position is reached;
s6, feeding is recovered: the feeding system is started and feeding is resumed.
2. A method for handling iron in a gyratory crusher according to claim 1, characterized in that the electric unloading valve is mounted on the control circuit of the oil cylinder (10).
3. A method of treating iron in a gyratory crusher according to claim 1, characterized in that the main shaft (8) is eccentrically tapered.
4. A method for handling iron in a gyratory crusher according to claim 1, characterized in that the crushing motor (4) is driven with variable frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211068507.1A CN115318422B (en) | 2022-09-02 | 2022-09-02 | Method for treating iron passing of gyratory crusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211068507.1A CN115318422B (en) | 2022-09-02 | 2022-09-02 | Method for treating iron passing of gyratory crusher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115318422A CN115318422A (en) | 2022-11-11 |
| CN115318422B true CN115318422B (en) | 2023-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211068507.1A Active CN115318422B (en) | 2022-09-02 | 2022-09-02 | Method for treating iron passing of gyratory crusher |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103861721A (en) * | 2014-03-31 | 2014-06-18 | 泰山医学院 | Intelligent control system of hydraulic gyratory crusher |
| CN105855027A (en) * | 2016-06-08 | 2016-08-17 | 安徽开发矿业有限公司 | Cone-crusher overload protection device |
| CN106923700A (en) * | 2015-12-31 | 2017-07-07 | 九阳股份有限公司 | A kind of food processing machine reducing mechanism and food processor |
| CN107469909A (en) * | 2017-09-21 | 2017-12-15 | 北京科技大学 | Multiple freedom parallel mechanism intelligent crushing machine |
| CN110665627A (en) * | 2019-09-17 | 2020-01-10 | 南昌矿山机械有限公司 | Automatic control system and method for hydraulic multi-cylinder cone crusher |
| CN114054131A (en) * | 2021-10-25 | 2022-02-18 | 南昌矿机集团股份有限公司 | Double-crushing-cavity cone crusher and crushing method |
| CN216605383U (en) * | 2021-11-29 | 2022-05-27 | 成都大宏立机器股份有限公司 | Automatic discharge port adjusting system of gyratory crusher |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2662142B1 (en) * | 2012-05-10 | 2015-11-18 | Sandvik Intellectual Property AB | Hydraulic system for controlling a jaw crusher |
-
2022
- 2022-09-02 CN CN202211068507.1A patent/CN115318422B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103861721A (en) * | 2014-03-31 | 2014-06-18 | 泰山医学院 | Intelligent control system of hydraulic gyratory crusher |
| CN106923700A (en) * | 2015-12-31 | 2017-07-07 | 九阳股份有限公司 | A kind of food processing machine reducing mechanism and food processor |
| CN105855027A (en) * | 2016-06-08 | 2016-08-17 | 安徽开发矿业有限公司 | Cone-crusher overload protection device |
| CN107469909A (en) * | 2017-09-21 | 2017-12-15 | 北京科技大学 | Multiple freedom parallel mechanism intelligent crushing machine |
| CN110665627A (en) * | 2019-09-17 | 2020-01-10 | 南昌矿山机械有限公司 | Automatic control system and method for hydraulic multi-cylinder cone crusher |
| CN114054131A (en) * | 2021-10-25 | 2022-02-18 | 南昌矿机集团股份有限公司 | Double-crushing-cavity cone crusher and crushing method |
| CN216605383U (en) * | 2021-11-29 | 2022-05-27 | 成都大宏立机器股份有限公司 | Automatic discharge port adjusting system of gyratory crusher |
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| CN115318422A (en) | 2022-11-11 |
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