CN115318422A - Iron passing treatment method for gyratory crusher - Google Patents
Iron passing treatment method for gyratory crusher Download PDFInfo
- Publication number
- CN115318422A CN115318422A CN202211068507.1A CN202211068507A CN115318422A CN 115318422 A CN115318422 A CN 115318422A CN 202211068507 A CN202211068507 A CN 202211068507A CN 115318422 A CN115318422 A CN 115318422A
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- Prior art keywords
- main shaft
- set value
- equal
- crusher
- pressure
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000003921 oil Substances 0.000 claims abstract description 18
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 9
- 238000007599 discharging Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 abstract description 18
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000005336 cracking Methods 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 5
- 238000003672 processing method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
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
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a method for processing iron passing of a gyratory crusher, which comprises the following steps: detecting the hydraulic pressure of a main shaft and the load of a crushing motor; when the pressure of the main shaft is less than or equal to a set value P1 and the load is greater than or equal to a set value W1, stopping feeding and reducing the rotating speed of a crushing motor, so that the pressure of the main shaft of the crusher is greater than or equal to a set value P2, and the main shaft is unloaded until the load is less than or equal to a set value W2; when the pressure is larger than or equal to the set value P2, the system starts an electric unloading valve or a hydraulic oil pump, the main shaft descends, and uncrushable objects are discharged; recovering the rotating speed of the crushing motor; resetting the main shaft: the hydraulic motor rotates forwards, the oil cylinder charges oil, the main shaft moves upwards and reaches a set position; and (3) feed recovery: starting the feeding system and recovering the feeding. The method for processing the over-iron of the rotary crusher avoids the upward movement of the main shaft of the crusher and the cracking and damage of the frame caused by the upward movement of the main shaft of the crusher, greatly improves the material cleaning efficiency by discharging through the discharge port, reduces the downtime, avoids manual material cleaning and reduces the safety accidents of casualties.
Description
Technical Field
The invention relates to a method for processing 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 the coarse crushing stage of ores in mines, in order to improve the ore passing rate and crushing efficiency, the cone angle of a crushing cavity and a main shaft is designed to be large, and the main shaft may move upwards due to the extrusion force of crushed materials at certain positions of the crushing cavity. Particularly, when uncrushable materials (such as iron blocks) are blocked at the positions, the main shaft of the crusher is usually moved upwards, when the uncrushable materials block the crushing cavity (commonly called iron passing phenomenon, hereinafter referred to as iron passing phenomenon), the conventional treatment method comprises the steps of stopping feeding, stopping the operation of a crushing motor, moving the main shaft downwards after resetting, opening a discharge port, and manually cleaning ores in the crushing cavity. The treatment method has long time, high labor intensity and high risk, and can cause serious damage to the crusher if the iron cannot be found in time.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a method for processing the iron passing of the gyratory crusher, which avoids the damage of the iron passing on the gyratory crusher and reduces the downtime caused by the iron passing.
In order to achieve the purpose, the invention adopts a method for processing the iron passing of the gyratory crusher, which comprises the following steps:
s1, detecting hydraulic pressure of a main shaft and load of a crushing motor;
s2, when the pressure of the main shaft is less than or equal to a set value P1 and the load is greater than or equal to a set value W1, stopping feeding and reducing the rotating speed of a crushing motor, so that the pressure of the main shaft of the crusher is greater than or equal to a set value P2, and the main shaft is unloaded until the load is less than or equal to a set value W2;
s3, when the pressure is larger than or equal to the set value P2, starting an electric unloading valve or a hydraulic oil pump by the system, descending the main shaft, and discharging uncrushable objects;
s4, recovering the rotating speed of the crushing motor;
s5, main shaft resetting: the hydraulic motor rotates forwards, the oil cylinder is filled with oil, and the main shaft moves upwards to reach a set position;
s6, recovering feeding: starting the feeding system and recovering the feeding.
As an improvement, the electric unloading valve is arranged on a control loop of the oil cylinder.
As a refinement, the main shaft is eccentrically tapered.
As an improvement, the crushing motor is driven by adopting a variable frequency.
Compared with the prior art, the processing method for the iron passing of the gyratory crusher avoids the cracking and damage of the frame caused by the upward movement of the main shaft of the crusher and the upward movement of the main shaft of the crusher; the ore and the uncrushable material in the broken chamber are discharged through the bin outlet and are greatly improved in material cleaning efficiency, the downtime is reduced, the manual material cleaning is avoided, and the safety accidents of casualties are reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic process flow diagram of 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 main machine, 8, a main shaft, 9, a rack, 10 and an oil cylinder.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not 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 the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention.
Example 1
As shown in fig. 1 and 2, a method for processing 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 rack 9, a space between the main shaft 8 and the rack 9 is a crushing cavity, the lower part of the crushing cavity is a discharge opening 6, materials are extruded and crushed by the rack 9 and the main shaft 8 in the crushing cavity and then are 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 9 moves downwards, and the discharge opening 6 is enlarged; the main shaft 8 is connected with an oil cylinder 10, the oil cylinder 10 is connected with the hydraulic oil pump 5, the oil cylinder 10 is driven by positive and negative rotation of the hydraulic oil pump 5 to lift, and the position of the main shaft 8 can be adjusted by lifting the oil cylinder 10;
the control system comprises a controller 1, and a pressure sensor 2 and a crushing motor load detection device 3 which are respectively connected with the controller 1, wherein 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; the main shaft 8 is in an eccentric cone shape, and the effect of crushing materials by matching the eccentric cone-shaped main shaft with the main machine 7 is better; the crushing motor 4 is driven by adopting variable frequency, so that the power output of the crushing motor 4 is convenient to adjust;
the specific processing method comprises the following steps:
s1, a controller 1 detects the pressure of a hydraulic loop 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 main machine 7 passes through iron; the controller 1 outputs an instruction (signal) to stop feeding, outputs the instruction (signal) to a driving frequency converter of the crushing motor 4, and reduces the driving frequency, so that 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 liquid of the oil cylinder 10 through an electric unloading valve arranged on the oil cylinder 10, the main shaft 8 rapidly descends, a discharge port 6 is increased, and the materials and uncrushable objects in a crushing cavity are rapidly discharged;
s3, after the materials in the crushing cavity are emptied, the controller 1 raises the rotating speed of the crushing motor 4 to a rated rotating speed;
s4, starting the hydraulic oil pump 5 to rotate forwards, filling oil into the oil cylinder, and lifting the main shaft 8 to a set position;
and S5, starting the crusher to feed, and starting a new round of work.
The method for processing the excessive iron of the rotary crusher avoids the main shaft of the crusher from moving upwards and avoids the frame from cracking and damaging due to the main shaft of the crusher moving upwards; ore and the uncrushable material in the broken chamber are discharged through the bin outlet and are greatly improved the clear material efficiency, reduce down time, avoid artifical clear material, reduce the incident of casualties.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the invention is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (4)
1. A method for processing iron passing of a gyratory crusher is characterized by comprising the following steps:
s1, detecting hydraulic pressure of a main shaft (8) and load of a crushing motor (4);
s2, when the pressure of the main shaft (8) is less than or equal to a set value P1 and the load is greater than or equal to a set value W1, stopping feeding and reducing the rotating speed of the crushing motor (4), so that the pressure of the main shaft (8) of the crusher is greater than or equal to a set value P2, and the load of the main shaft (8) is less than or equal to a set value W2;
s3, when the pressure is larger than or equal to the set value P2, starting an electric unloading valve or a hydraulic oil pump by the system, descending a main shaft (8), and discharging uncrushable objects;
s4, recovering the rotating speed of the crushing motor (4);
s5, resetting the main shaft (8): the hydraulic motor rotates forwards, the oil cylinder charges oil, the main shaft moves upwards and reaches a set position;
s6, recovering feeding: starting the feeding system and recovering the feeding.
2. A method of handling of a gyratory crusher rotor according to claim 1, characterized in that the electric unloading valve is installed in the control circuit of the cylinder (10).
3. A gyratory crusher process according to claim 1, characterized in that the main shaft (8) is eccentrically conical.
4. A method of handling of once-through iron in a gyratory crusher according to claim 1, characterised in that the crusher motor (4) is driven with a variable frequency drive.
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 true CN115318422A (en) | 2022-11-11 |
| CN115318422B CN115318422B (en) | 2023-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211068507.1A Active CN115318422B (en) | 2022-09-02 | 2022-09-02 | Method for treating iron passing of gyratory crusher |
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Citations (8)
| 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 |
| US20150107232A1 (en) * | 2012-05-10 | 2015-04-23 | Sandvik Intellectual Property Ab | Hydraulic system for controlling a jaw 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 |
-
2022
- 2022-09-02 CN CN202211068507.1A patent/CN115318422B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150107232A1 (en) * | 2012-05-10 | 2015-04-23 | Sandvik Intellectual Property Ab | Hydraulic system for controlling a jaw crusher |
| 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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| Publication number | Publication date |
|---|---|
| CN115318422B (en) | 2023-12-26 |
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