CN112354668A - Ore crushing and control system thereof - Google Patents
Ore crushing and control system thereof Download PDFInfo
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- CN112354668A CN112354668A CN202011280635.3A CN202011280635A CN112354668A CN 112354668 A CN112354668 A CN 112354668A CN 202011280635 A CN202011280635 A CN 202011280635A CN 112354668 A CN112354668 A CN 112354668A
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- 239000000463 material Substances 0.000 claims abstract description 67
- 239000010410 layer Substances 0.000 claims description 66
- 239000002356 single layer Substances 0.000 claims description 16
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 10
- 239000011707 mineral Substances 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 17
- 230000008569 process Effects 0.000 abstract description 16
- 229920006395 saturated elastomer Polymers 0.000 abstract description 5
- 238000012216 screening Methods 0.000 description 14
- 238000007599 discharging Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C1/00—Crushing or disintegrating by reciprocating members
- B02C1/02—Jaw crushers or pulverisers
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/02—Feeding devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
-
- 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
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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
- B07B1/28—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
-
- 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
-
- 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
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
Abstract
The invention discloses ore crushing and a control system thereof, and relates to the technical field of ore dressing and ore crushing processes. The invention comprises an ore crushing system, which adopts a three-section two-closed-circuit mode to crush raw ores so as to solve the problem of low ore crushing capability of an ore dressing plant. Meanwhile, the invention also comprises a three-section double-closed-circuit raw ore crushing control system which comprises the ore crushing system and a PLC control module and a plurality of sensors, wherein a first material quantity sensor, a second material quantity sensor and a third material quantity sensor are respectively arranged on the jaw crusher, the ultra-coarse cavity type single-cylinder hydraulic cone crusher and the short-head coarse cavity multi-cylinder hydraulic cone crusher and are respectively linked with a discharge opening of the feeding machine, a discharge opening at the top end of the double-layer vibrating screen and a discharge opening signal of a discharge opening at the middle end of the double-layer vibrating screen through the PLC control module; the whole system is always in a saturated state to operate, and the purpose of high-efficiency operation of ore crushing processing capacity is greatly guaranteed.
Description
Technical Field
The invention relates to the technical field of ore dressing and crushing processes, in particular to crushed ore and a control system thereof
Background
In the traditional view, up to today, the beneficiation of ores has four steps. The crushing is the first step, most of the crushing systems crush the produced ore to a specified particle size and then screen the crushed ore, generally speaking, the crushing process of an ore dressing plant adopts a two-stage-one closed-circuit crushing and screening process, and for some ore with hard crude ore property, the average crushed ore treatment capacity is generally 150t/h, that is, generally speaking, the treatment capacity of the existing crushing system is 1500t/d, so how to improve the crushing efficiency is one of the problems to be solved urgently for improving the ore dressing efficiency of the ore dressing plant.
Disclosure of Invention
The invention aims to provide an ore crushing system to solve the problem of low ore crushing capacity of an ore dressing plant.
In order to solve the problems, the invention adopts the following technical means:
a ore crushing system adopts a large-supply-quantity feeder to supply raw ore, and utilizes a jaw crusher to perform coarse crushing as first-stage crushing;
the discharge port of the jaw crusher is provided with a double-layer vibrating screen, the upper-layer filter hole of the double-layer vibrating screen is larger than the lower-layer filter hole of the double-layer vibrating screen, the discharge port at the top end of the double-layer vibrating screen is communicated with the ultra-coarse cavity type single-cylinder hydraulic cone crusher through a first circulating system to perform middle crushing as second-stage crushing, and the medium crushed material enters the double-layer vibrating screen again after the crushing is completed to form a first closed circuit;
a discharge port at the middle end of the double-layer vibrating screen is communicated with the short-head coarse-cavity multi-cylinder hydraulic cone crusher for fine crushing as a three-section crushing, a discharge port of the short-head coarse-cavity multi-cylinder hydraulic cone crusher is communicated with the single-layer vibrating screen, and a discharge port at the top end of the single-layer vibrating screen enters the short-head coarse-cavity multi-cylinder hydraulic cone crusher again through a second circulating system for crushing to form a second closed circuit;
the discharge ports at the bottom ends of the double-layer vibrating screen and the single-layer vibrating screen are communicated with a fine ore bin for collection;
the first-stage crushing, the second-stage crushing, the third-stage crushing, the first closed circuit and the second closed circuit form three-stage double-closed-circuit crushing.
Preferably, the supply quantity of the feeding machine is not less than 250 t/h.
Furthermore, the mesh of the upper filtering hole of the double-layer vibrating screen is 40 × 60mm, and the mesh of the lower filtering hole of the double-layer vibrating screen is 12 × 25 mm.
Furthermore, the filtering hole mesh of the single-layer vibrating screen is 12 x 25 mm.
Furthermore, a discharge port at the middle end of the double-layer sieving machine is communicated with the short-head coarse-cavity multi-cylinder hydraulic cone crusher through a buffer bin.
Furthermore, the discharge end of the second circulating system is communicated with the feed end of the buffer bin.
Furthermore, the first circulating system and the second circulating system are both mineral aggregate conveying crawler machines.
The invention has the following beneficial effects:
the method comprises the following steps of changing the conventional two-section one-closed crushing and screening process of pre-screening into a three-section two-closed crushing and screening process, firstly, carrying out quick coarse crushing by using a jaw crusher, further effectively increasing the treatment efficiency of the jaw crusher in the quick coarse crushing process, namely receiving more raw ores from a feeder, after coarse crushing, discharging the materials into a double-layer vibrating screen, and screening by using the double-layer vibrating screen, wherein part of crushed qualified materials can be directly discharged into a powder bin through a bottom discharge port of the double-layer vibrating screen for collection, and further namely finished crushed ores are discharged in the crushing process of a first end; that is, the coarsely crushed materials are screened into three materials under the action of the double-layer vibrating and screening machine, wherein the materials with the largest particle size are discharged from a discharge port at the top end of the double-layer vibrating and screening machine and enter the single-cylinder hydraulic cone crusher with the ultra-coarse cavity through a first circulating system for intermediate crushing, the materials which are subjected to intermediate crushing enter the double-layer vibrating and screening machine again, and similarly, part of the materials can directly enter the powder bin for collection; and then discharging the material with the particle size in the middle part through a middle-end discharge port of the double-layer vibrating screen, finely crushing the material in the short-head coarse-cavity multi-cylinder hydraulic cone crusher, communicating the discharge port of the short-head coarse-cavity multi-cylinder hydraulic cone crusher with a single-layer vibrating screen, discharging the sieved material, collecting the sieved material in a powder bin, and crushing the unscreened material in the short-head coarse-cavity multi-cylinder hydraulic cone crusher through a second circulating system.
In the process of coarse crushing, medium crushing and fine crushing, the ore materials meeting the standard are discharged and collected, in addition, because three-section double closed-circuit crushing is formed, the crushing efficiency of each section of crushing can be obviously improved, namely, each section of crushing can be crushed in a saturated state, even if the particle size of the crushed materials is larger, the crushed materials can be crushed again through the first closed circuit or the second closed circuit, and the treatment capacity of crushed ores is improved in response, and the treatment capacity of the crushed ores can reach the treatment capacity of the crushed ores when a C100 jaw crusher, a GP300S ultra-coarse cavity single-cylinder hydraulic cone crusher, a HP400 short-head coarse cavity multi-cylinder hydraulic cone crusher, a 2460 double-layer heavy vibrating screen and a 2460 single-layer vibrating screen are adopted.
Meanwhile, the invention also provides a three-section double-closed-circuit raw ore crushing control system which comprises the ore crushing system and a PLC control module and a plurality of sensors, wherein a first material quantity sensor, a second material quantity sensor and a third material quantity sensor are respectively arranged on the jaw crusher, the ultra-coarse cavity type single-cylinder hydraulic cone crusher and the short-head coarse cavity multi-cylinder hydraulic cone crusher and are respectively in signal linkage with a discharge opening of the feeding machine, a discharge opening at the top end of the double-layer vibrating screen and a discharge opening at the middle end discharge opening of the double-layer vibrating screen through the PLC control module.
Furthermore, according to the control system disclosed by the invention, the PLC control module is used for receiving corresponding material signals transmitted by different sensors to control the opening and closing degrees of the feeding machine, the top discharge port of the double-layer vibrating screen and the middle discharge port of the double-layer vibrating screen, namely after the corresponding sensors sense excessive materials, the PLC control module outputs control signals to close the discharge ports linked with the sensors so as to achieve the purpose of reducing the discharge amount, and after the corresponding sensors sense the reduction of the materials, the discharge ports linked with the sensors are opened so as to achieve the purpose of increasing the discharge amount, so that the whole system can be always operated in a saturated state, and the high efficiency of ore crushing treatment capacity is greatly ensured.
Drawings
FIG. 1 is a schematic process flow diagram of the process of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that the products of the present invention conventionally lay out when in use, or orientations or positional relationships that are conventionally understood by those skilled in the art, which are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Specifically, referring to fig. 1, a high-yield ore crushing system adopts a large-supply feeder to supply raw ore, and uses a jaw crusher to perform coarse crushing as primary crushing;
the discharge port of the jaw crusher is provided with a double-layer vibrating screen, the upper-layer filter hole of the double-layer vibrating screen is larger than the lower-layer filter hole of the double-layer vibrating screen, the discharge port at the top end of the double-layer vibrating screen is communicated with the ultra-coarse cavity type single-cylinder hydraulic cone crusher through a first circulating system to perform middle crushing as second-stage crushing, and the medium crushed material enters the double-layer vibrating screen again after the crushing is completed to form a first closed circuit;
a discharge port at the middle end of the double-layer vibrating screen is communicated with the short-head coarse-cavity multi-cylinder hydraulic cone crusher for fine crushing as a three-section crushing, a discharge port of the short-head coarse-cavity multi-cylinder hydraulic cone crusher is communicated with the single-layer vibrating screen, and a discharge port at the top end of the single-layer vibrating screen enters the short-head coarse-cavity multi-cylinder hydraulic cone crusher again through a second circulating system for crushing to form a second closed circuit;
the discharge ports at the bottom ends of the double-layer vibrating screen and the single-layer vibrating screen are communicated with a fine ore bin for collection;
the first-stage crushing, the second-stage crushing, the third-stage crushing, the first closed circuit and the second closed circuit form three-stage double-closed-circuit crushing.
Specifically, the supply quantity of the feeding machine is not less than 250 t/h.
And the upper layer of the double-layer vibrating screen has 40 × 60mm sieve pores, and the lower layer of the double-layer vibrating screen has 12 × 25mm sieve pores.
Meanwhile, the filtering hole and the mesh of the single-layer vibrating screen are 12 x 25 mm.
And then, a discharge port at the middle end of the double-layer sieving machine is communicated with the short-head coarse-cavity multi-cylinder hydraulic cone crusher through a buffer bin.
And the discharge end of the second circulating system is communicated with the feed end of the buffer bin.
Moreover, the first circulating system and the second circulating system are both mineral aggregate conveying crawler machines.
Therefore, the conventional two-section one-closed crushing and screening process which is commonly used and is screened in advance is changed into a three-section double-closed crushing and screening process, firstly, a jaw crusher is utilized to carry out quick coarse crushing, and then in the quick coarse crushing process, the treatment efficiency of the jaw crusher can be effectively increased, namely more raw ores can be received from a feeder, after the coarse crushing, the materials are discharged into a double-layer vibrating screen, and through the screening of the double-layer vibrating screen, part of crushed qualified materials can be directly discharged into a powder bin through a bottom end discharge hole of the double-layer vibrating screen to be collected, and further, in the crushing process of a first end, finished crushed ores are discharged; that is, the coarsely crushed materials are screened into three materials under the action of the double-layer vibrating and screening machine, wherein the materials with the largest particle size are discharged from a discharge port at the top end of the double-layer vibrating and screening machine and enter the single-cylinder hydraulic cone crusher with the ultra-coarse cavity through a first circulating system for intermediate crushing, the materials which are subjected to intermediate crushing enter the double-layer vibrating and screening machine again, and similarly, part of the materials can directly enter the powder bin for collection; and then discharging the material with the particle size in the middle part through a middle-end discharge port of the double-layer vibrating screen, finely crushing the material in the short-head coarse-cavity multi-cylinder hydraulic cone crusher, communicating the discharge port of the short-head coarse-cavity multi-cylinder hydraulic cone crusher with a single-layer vibrating screen, discharging the sieved material, collecting the sieved material in a powder bin, and crushing the unscreened material in the short-head coarse-cavity multi-cylinder hydraulic cone crusher through a second circulating system.
In the process of coarse crushing, medium crushing and fine crushing, the ore materials meeting the standard are discharged and collected, in addition, because three-section double closed-circuit crushing is formed, the crushing efficiency of each section of crushing can be obviously improved, namely, each section of crushing can be crushed in a saturated state, even if the particle size of the crushed materials is larger, the crushed materials can be crushed again through the first closed circuit or the second closed circuit, and the treatment capacity of crushed ores is improved in response, and the treatment capacity of the crushed ores can reach the treatment capacity of the crushed ores when a C100 jaw crusher, a GP300S ultra-coarse cavity single-cylinder hydraulic cone crusher, a HP400 short-head coarse cavity multi-cylinder hydraulic cone crusher, a 2460 double-layer heavy vibrating screen and a 2460 single-layer vibrating screen are adopted.
Furthermore, the invention also provides a three-section double-closed-circuit raw ore crushing control system which comprises the ore crushing system and a PLC control module and a plurality of sensors, wherein a first material quantity sensor, a second material quantity sensor and a third material quantity sensor are respectively arranged on the jaw crusher, the ultra-coarse chamber type single-cylinder hydraulic cone crusher and the short-head coarse chamber multi-cylinder hydraulic cone crusher and are respectively in signal linkage with the discharge opening of the feeding machine, the discharge opening at the top end of the double-layer vibrating screen and the discharge opening at the middle end discharge opening of the double-layer vibrating screen through the PLC control module.
Furthermore, according to the control system disclosed by the invention, the PLC control module is used for receiving corresponding material signals transmitted by different sensors to control the opening and closing degrees of the feeding machine, the top discharge port of the double-layer vibrating screen and the middle discharge port of the double-layer vibrating screen, namely after the corresponding sensors sense excessive materials, the PLC control module outputs control signals to close the discharge ports linked with the sensors so as to achieve the purpose of reducing the discharge amount, and after the corresponding sensors sense the reduction of the materials, the discharge ports linked with the sensors are opened so as to achieve the purpose of increasing the discharge amount, so that the whole system can be always operated in a saturated state, and the high efficiency of ore crushing treatment capacity is greatly ensured.
The invention utilizes the feeder to convey the same raw ore quantity to different ore crushing systems, and then compares the discharging conditions of the different systems.
Example 1
The ore feeding speed of the feeder is 100 t/h.
Example 2
The ore feeding speed of the feeder is 130 t/h.
Example 3
The ore feeding speed of the feeder is 150 t/h.
Example 4
The ore feeding speed of the feeder is 160 t/h.
Example 5
The ore feeding speed of the feeder is 180 t/h.
Example 6
The ore feeding speed of the feeder is 230 t/h.
Example 7
The ore feeding speed of the material collecting machine is 260 t/h.
Example 8
The ore feeding speed of the material collecting machine is 300 t/h.
Comparative example 1
And (3) crushing ore by adopting a two-section one-closed-circuit ore crushing system, wherein the ore supply speed of the feeder is 100 t/h.
Comparative example 2
And (3) crushing ore by adopting a two-section one-closed-circuit ore crushing system, wherein the ore supply speed of the feeder is 130 t/h.
Comparative example 3
And (3) crushing ore by adopting a two-section one-closed-circuit ore crushing system, wherein the ore supply speed of the feeder is 150 t/h.
Comparative example 4
And (3) crushing ore by adopting a two-section one-closed-circuit ore crushing system, wherein the ore supply speed of the feeder is 160 t/h.
Comparative example 5
And (3) crushing ore by adopting a two-section one-closed-circuit ore crushing system, wherein the ore supply speed of the feeder is 180 t/h.
Comparative example 6
And (3) crushing ore by adopting a two-section one-closed-circuit ore crushing system, wherein the ore supply speed of the feeder is 230 t/h.
For specific results, please refer to the following table:
| rate of supply of ore | Three-section two-closed-circuit discharging speed | Closed discharge speed with one end at both ends |
| 100t/h | 100t/h, no material leakage in each section | 100t/h, no material leakage in each section |
| 130t/h | 130t/h, no material leakage in each section | 130t/h, no material leakage in each section |
| 150t/h | 150t/h, no material leakage in each section | 150t/h, no material leakage in each section |
| 160t/h | 160t/h, no material leakage in each section | 150t/h, each section has leaked out material |
| 180t/h | 180t/h, no material leakage in each section | 150t/h, each section has leaked out material |
| 230t/h | 230t/h, no material leakage in each section | 150t/h, each section has leaked out material |
| 260t/h | 260t/h, no material leakage in each section | |
| 300t/h | 300t/h, no material leakage in each section |
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (8)
1. A mineral breaking system, characterized by: a large-supply-quantity feeder is adopted for supplying raw ores, and a jaw crusher is used for coarse crushing to obtain a first-stage crushing;
the discharge port of the jaw crusher is provided with a double-layer vibrating screen, the upper-layer filter hole of the double-layer vibrating screen is larger than the lower-layer filter hole of the double-layer vibrating screen, the discharge port at the top end of the double-layer vibrating screen is communicated with the ultra-coarse cavity type single-cylinder hydraulic cone crusher through a first circulating system to perform middle crushing as second-stage crushing, and the medium crushed material enters the double-layer vibrating screen again after the crushing is completed to form a first closed circuit;
a discharge port at the middle end of the double-layer vibrating screen is communicated with the short-head coarse-cavity multi-cylinder hydraulic cone crusher for fine crushing as a three-section crushing, a discharge port of the short-head coarse-cavity multi-cylinder hydraulic cone crusher is communicated with the single-layer vibrating screen, and a discharge port at the top end of the single-layer vibrating screen enters the short-head coarse-cavity multi-cylinder hydraulic cone crusher again through a second circulating system for crushing to form a second closed circuit;
the discharge ports at the bottom ends of the double-layer vibrating screen and the single-layer vibrating screen are communicated with a fine ore bin for collection;
the first-stage crushing, the second-stage crushing, the third-stage crushing, the first closed circuit and the second closed circuit form three-stage double-closed-circuit crushing.
2. A mineral breaking system according to claim 1, wherein: the supply quantity of the feeding machine is not less than 250 t/h.
3. A mineral breaking system according to claim 1, wherein: the upper layer of the double-layer vibrating screen is 40-60 mm in mesh, and the lower layer of the double-layer vibrating screen is 12-25 mm in mesh.
4. A mineral breaking system according to claim 1, wherein: the filtering hole and the filtering hole of the single-layer vibrating screen are 12 x 25 mm.
5. A mineral breaking system according to claim 1, wherein: and a discharge port at the middle end of the double-layer sieving machine is communicated with the short-head coarse-cavity multi-cylinder hydraulic cone crusher through a buffer bin.
6. A mineral breaking system according to claim 5, wherein: and the discharge end of the second circulating system is communicated with the feed end of the buffer bin.
7. A mineral breaking system according to claim 1, wherein: the first circulating system and the second circulating system are both mineral aggregate conveying crawler machines.
8. The utility model provides a control system is smashed to two closed circuit raw ore of three-section which characterized in that: the ore crushing system for controlling any one of claims 1 to 7, which comprises a PLC control module and a plurality of sensors, wherein the jaw crusher, the ultra-coarse chamber type single-cylinder hydraulic cone crusher and the short-head coarse chamber multi-cylinder hydraulic cone crusher are respectively provided with a first material quantity sensor, a second material quantity sensor and a third material quantity sensor, and are respectively linked with a discharge port of the feeding machine, a discharge port at the top end of the double-layer vibrating screen and a discharge port at the middle end discharge port of the double-layer vibrating screen through the PLC control module.
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| CN202011280635.3A CN112354668A (en) | 2020-11-16 | 2020-11-16 | Ore crushing and control system thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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