CN110170350A - Improve the method that jaw crusher breaks mine efficiency - Google Patents
Improve the method that jaw crusher breaks mine efficiency Download PDFInfo
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- CN110170350A CN110170350A CN201910242176.0A CN201910242176A CN110170350A CN 110170350 A CN110170350 A CN 110170350A CN 201910242176 A CN201910242176 A CN 201910242176A CN 110170350 A CN110170350 A CN 110170350A
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- jaw
- mine
- crusher
- liner plate
- broken
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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
- B02C1/00—Crushing or disintegrating by reciprocating members
- B02C1/02—Jaw crushers or pulverisers
- B02C1/04—Jaw crushers or pulverisers with single-acting jaws
-
- 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
- B02C1/10—Shape or construction of jaws
-
- 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
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a kind of methods that raising jaw crusher breaks mine efficiency, this method comprises: with the uniform adding raw materials ore of the crusher chamber to mine frequency to jaw crusher of 50Hz~70Hz；Raw ore is obtained using short-delay blasting mode；Thread form is set by the broken mine waveform of jaw crusher, broken mine waveform wave crest is set as R40mm, and trough is set as R40mm, and wave height is set as 80mm, and corrugation pitch is set as 260~300mm；And when jaw crusher carries out brokenly mine operation, mine is carried out brokenly to raw ore in such a way that the corresponding liner plate for determining jaw trough of dynamic jaw wave crest breaks mine.Method of the invention is by being configured adjustment to mine frequency, the acquisition modes of raw ore, broken mine waveform and the broken mine mode of liner plate to jaw crusher, ore extruding, influence broken, bending and slabbing action power are to crusher body can be improved, it reduces the broken mine screen of crusher and divides circulating load, machine vibration and marker size, broken mine power consumption is reduced, the broken mine torque, broken mineral products amount and broken mine efficiency of crusher are improved.
Description
Technical field
The present invention relates to mines to break mine technical field more particularly to a kind of method for improving jaw crusher and breaking mine efficiency.
Background technique
Jaw crusher is a kind of most common ore crusher, is mainly used for as in mine, building materials and capital construction
Boulder crusher and intermediate crusher in operation.Currently, jaw crusher can be divided into large-scale, medium-sized and small according to material inlet width size
Type crusher, it is Large Crusher that material inlet width, which is greater than 600mm, and material inlet width is medium-sized within the scope of 300mm to 600mm
Crusher, it is small-sized crusher that material inlet width, which is less than 300mm,.
The operating mechanism of jaw crusher includes determining jaw and dynamic jaw, and determining jaw includes determining jaw ontology and determining jaw liner plate, determines jaw lining
Plate is fixedly mounted on and is determined on jaw ontology by fixed drift and bolt；Dynamic jaw includes dynamic jaw ontology and dynamic jaw liner plate, moves jaw liner plate
It is fixedly mounted on dynamic jaw ontology by fixed drift and bolt；Determine the setting of jaw liner plate to put on determining jaw body antetheca, and vertically
It sets or makes to determine the relatively dynamic jaw liner plate upper end in jaw liner plate upper end and be angled in the outboard direction；Dynamic jaw liner plate determines the inclination of jaw liner plate relatively
It places, and connects the eccentric rotary mechanism of jaw crusher by moving jaw ontology；Determine jaw liner plate, dynamic jaw liner plate and jaw crusher
The small crusher chamber of big lower mouth suitable for reading is collectively formed in the two side walls of cabinet, determines jaw liner plate lower end and dynamic jaw liner plate lower end is formed
Opening be gape.In specific operation, dynamic jaw liner plate is realized under the promotion of eccentric rotary mechanism determines jaw liner plate relatively
Reciprocally swinging, to be crushed to the ore for entering crusher chamber；When dynamic jaw liner plate is with determining jaw liner plate and separating, ore is from crusher chamber
Top enters crusher chamber；Dynamic jaw liner plate and determine jaw liner plate close to when, ore due to be squeezed, bend and slabbing action and break
Broken, broken ore is discharged due to being self-possessed from gape；It loops back and forth like this, realizes the broken of ore.
The inventor finds that the existing technology has at least the following problems:
When in use, there are broken mine low efficiency, liner plates to be easy to fall off, liner plate is short using the serious wear service life for jaw crusher
The problems such as big with ore discharge granularity.
Summary of the invention
To solve above-mentioned the technical problems existing in the prior art, the present invention provides a kind of broken mine effect of raising jaw crusher
The method of rate.
For this purpose, the invention discloses a kind of methods that raising jaw crusher breaks mine efficiency, which comprises
With the uniform adding raw materials ore of the crusher chamber to mine frequency to jaw crusher of 50Hz~70Hz；
The raw ore is obtained using short-delay blasting mode；
Thread form is set by the broken mine waveform of the jaw crusher, the broken mine waveform wave crest is set as R40mm, trough
It is set as R40mm, wave height is set as 80mm, and corrugation pitch is set as 260~300mm；And it is carried out brokenly in the jaw crusher
When mine operates, mine is carried out brokenly to the raw ore in such a way that the corresponding liner plate for determining jaw trough of dynamic jaw wave crest breaks mine.
Further, in the method that the raising jaw crusher breaks mine efficiency, using potassium steel ZGMn19CrMoNi
Prepare the jaw crusher determines jaw liner plate and dynamic jaw liner plate, sets 250~300mm for the thickness for determining jaw liner plate,
200~270mm is set by the thickness of the dynamic jaw liner plate, and is arranged at the back side for determining jaw liner plate and the dynamic jaw liner plate
Hollow lightening hole.
Further, in the method that the raising jaw crusher breaks mine efficiency, institute is being prepared using the potassium steel
It states when determining jaw liner plate and the dynamic jaw liner plate, metallic nickel is added in the potassium steel；
Using the potassium steel prepare it is described determine jaw liner plate and the dynamic jaw liner plate when, addition is golden in the potassium steel
Belong to chromium, and makes the content for determining jaw liner plate and the crome metal in the dynamic jaw liner plate more than or equal to 1%.
It further, will be described using mounting means is inlayed in the method that the raising jaw crusher breaks mine efficiency
Dynamic jaw liner plate is fixedly mounted on dynamic jaw ontology, determines jaw liner plate and be fixedly mounted on to determine jaw ontology by described using mounting means is inlayed
On.
Further, in the method that the raising jaw crusher breaks mine efficiency, according to the hardness of the raw ore
Determine the dynamic jaw oscillating stroke of the jaw crusher.
Further, in the method that the raising jaw crusher breaks mine efficiency, according to giving for the jaw crusher
Material mouth width determines that the granularity of the raw ore, the maximum value of the granularity of the raw ore meet following formula 1；
Dmax=(0.75~0.85) B (formula 1)
Wherein, DmaxIndicate the maximum value of the granularity of the raw ore, B indicates the material inlet width；
Under determining that the material inlet length of the jaw crusher, the material inlet length meet according to the material inlet width
State formula 2；
L=(1.25~1.5) B (formula 2)
Wherein, L indicates the material inlet length, and B indicates the material inlet width.
Further, in the method that the raising jaw crusher breaks mine efficiency, by nibbling for the jaw crusher
Angle is set as 19 °~23 °, and determines that the gape of the jaw crusher is big according to the material inlet width and the angle of nibbling
It is small.
Further, in the method that the raising jaw crusher breaks mine efficiency, in the dynamic jaw of the jaw crusher
Adjustment cushion block is removably installed between liner plate and dynamic jaw ontology.
Further, in the method that the raising jaw crusher breaks mine efficiency, further includes: make the jaw crusher
To mine height be in the case that 0.5~2.5m and the raw ore occupy 60%~90% broken cavity space into
The broken mine production of row.
Further, in the method that the raising jaw crusher breaks mine efficiency, by the bias of the jaw crusher
The speed of mainshaft of rotating mechanism is set as 100~200r/min；
It is 10~18LHsn (Kw) by the broken mine power setting of the jaw crusher；
2.5~4.5 are set by the reduction ratio of the jaw crusher.
The major advantage of technical solution of the present invention is as follows:
The method of the broken mine efficiency of raising jaw crusher of the invention is by giving mine frequency, Raw Ore to jaw crusher
The acquisition modes of stone, broken mine waveform, liner plate break mine mode, liner material quality, liner plate thickness, lining plate structure, liner plate installation method, move
Jaw oscillating stroke, material inlet length, is nibbled angle, gape size, the speed of mainshaft, broken mine power and is crushed at raw ore granularity
It is adjusted than being configured, ore extruding, influence broken, bending and slabbing action power are to jaw crusher body can be improved,
It reduces the broken mine screen of crusher and divides circulating load, machine vibration and marker size, reduce broken mine power consumption, improve jaw crusher
Broken mine torque, broken mineral products amount and broken mine efficiency；And the service life of liner plate can be improved, avoid liner plate from occurring in use
The problem of loose or dislocation, reduces labor intensity of workers.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes of the invention one
Point, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, does not constitute improper limitations of the present invention.Attached
In figure:
Fig. 1 is a kind of structural schematic diagram of the jaw crusher operating mechanism for prior art that example provides.
Description of symbols:
It is eccentric that 1- determines jaw, 11- determines jaw ontology, 12- determines jaw liner plate, 2- moves jaw, 21- moves jaw ontology, 22- moves jaw liner plate, 3-
Rotating mechanism.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only of the invention
A part of the embodiment, instead of all the embodiments.Based on the embodiment of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
Below in conjunction with attached drawing, the technical solution of embodiment that the present invention will be described in detail offer.
As shown in Fig. 1, the operating mechanism of existing jaw crusher includes determining jaw 1 and dynamic jaw 2, and determining jaw 1 includes determining jaw
Ontology 11 and determine jaw liner plate 12, determine jaw liner plate 12 and be fixedly mounted on and determine on jaw ontology 11 by fixation drift and bolt；Dynamic jaw 2 wraps
Jaw ontology 21 and dynamic jaw liner plate 22 are included, dynamic jaw liner plate 22 is fixedly mounted on dynamic jaw ontology 21 by fixed drift and bolt；
Determine jaw liner plate 12 to be arranged on determining jaw body antetheca, and is disposed vertically or makes to determine relatively dynamic 22 upper end of jaw liner plate in 12 upper end of jaw liner plate
It is angled in the outboard direction；Dynamic jaw liner plate 22 determines 12 slant setting of jaw liner plate relatively, and connects jaw by dynamic jaw ontology 21
The eccentric rotary mechanism 3 of crusher；Determine jaw liner plate 12, dynamic jaw liner plate 22 and the two side walls of jaw crusher cabinet to be collectively formed
One small crusher chamber of big lower mouth suitable for reading, wherein determine the opening that 12 upper end of jaw liner plate and dynamic 22 upper end of jaw liner plate are formed for feed
Mouthful, determining the opening that 12 lower end of jaw liner plate and dynamic 22 lower end of jaw liner plate are formed is gape.
The embodiment of the invention provides a kind of methods that raising jaw crusher breaks mine efficiency, this method comprises:
With the uniform adding raw materials ore of the crusher chamber to mine frequency to jaw crusher of 50Hz~70Hz；It is quick-fried using elementary errors
Broken mode obtains raw ore；Thread form is set by the broken mine waveform of jaw crusher, broken mine waveform wave crest is set as R40mm,
Trough is set as R40mm, and wave height is set as 80mm, and corrugation pitch is set as 260~300mm；And it is carried out brokenly in jaw crusher
When mine operates, mine is carried out brokenly to raw ore in such a way that the corresponding liner plate for determining jaw trough of dynamic jaw wave crest breaks mine.
Specifically, jaw crusher is interrupted to mine frequency by 80~90Hz of the prior art be adjusted to 50 to mine~
70Hz spares to mine, can be realized and stablizes to mine, continuous crushing, reduces broken mine vibration severity and raw ore is broken to jaw
The impact of broken body and broken mine load；It can be avoided and cause crusher to dally due to few to mine, or more than mine-supplying quantity due to causes
Jaw crusher load increases, and the ore being largely broken has little time to be discharged and cause stifled mine；Short-delay blasting mode is applied simultaneously
Raw ore is obtained, can reduce the feed preparation unit size of jaw crusher, increases ore micro-crack, improves broken mine efficiency and broken mine power
Square；In addition, the setting of broken mine waveform is adjusted to molar thread form, and thread form parameter is adjusted, denticle compared with the prior art,
Wave crest R20mm, 150~200mm of trough R20mm, wave height 40mm and corrugation pitch can be improved dynamic jaw liner plate 22 and determine jaw liner plate
Extruding, bending and the slabbing action of 12 pairs of raw ores improve broken bite force and broken mine efficiency.
Further, in the embodiment of the present invention, the method for the broken mine efficiency of the raising jaw crusher further include: use Gao Meng
What steel ZGMn19CrMoNi prepared jaw crusher determines jaw liner plate 12 and dynamic jaw liner plate 22, sets the thickness for determining jaw liner plate 12 to
The thickness of dynamic jaw liner plate 22 is set 200~270mm by 250~300mm, and in the back for determining jaw liner plate 12 and dynamic jaw liner plate 22
Hollow lightening hole is arranged in face.
Specifically, dynamic jaw liner plate 22 compared with the prior art and determine the thickness of jaw liner plate 12, in the embodiment of the present invention, will move
22 thickness of jaw liner plate increases by 50~100mm, will determine 12 thickness of jaw liner plate and increases by 80~120mm, and determines 12 He of jaw liner plate increasing
While the thickness of dynamic jaw liner plate 22, guarantees that liner plate weight is remained unchanged using hollow lightening hole, effectively improve and determine jaw
The intensity and rigidity of liner plate 12 and dynamic jaw liner plate 22；It is prepared simultaneously using potassium steel ZGMn19CrMoNi and determines jaw liner plate 12 and move
Jaw liner plate 22 can effectively improve the wearability and impact resistance of liner plate.
Wherein, in order to improve harden ability of the liner plate when being cast, and the initial hardness of liner plate is improved, extending liner plate makes
Do not started to generate the friction durability before work hardening layer with initial stage, in the embodiment of the present invention, determine jaw lining using potassium steel preparation
When plate 12 and dynamic jaw liner plate 22, metallic nickel is added in potassium steel；Meanwhile in order to improve the wearability of liner plate and service life,
In the embodiment of the present invention, when determining jaw liner plate 12 and dynamic jaw liner plate 22 using potassium steel preparation, crome metal is added in potassium steel,
And the content for making to determine jaw liner plate 12 and the crome metal in dynamic jaw liner plate 22 is more than or equal to 1%, so set, can in liner plate shape
At the carbide of high rigidity, to improve the wearability and service life of liner plate.
Further, in order to avoid determining jaw liner plate 12 and dynamic jaw liner plate 22 in use, from determining jaw ontology 11 and dynamic
It falls off on jaw ontology 21, in the embodiment of the present invention, dynamic jaw liner plate 22 is fixedly mounted on dynamic jaw ontology using mounting means is inlayed
On 21, it will determine jaw liner plate 12 and be fixedly mounted on to determine on jaw ontology 11 using mounting means is inlayed.
Further, the method provided in an embodiment of the present invention for improving jaw crusher and breaking mine efficiency further include: according to original
The hardness of material ore determines the dynamic jaw oscillating stroke of jaw crusher.Specifically, the hardness and brittleness of raw ore are bigger, move jaw
Oscillating stroke is smaller, and when raw ore is iron ore, dynamic jaw oscillating stroke is chosen for 35~45mm.
Further, crusher chamber blocks in order to prevent, and improves the broken mine efficiency and broken mine torque of jaw crusher, this hair
In the method that bright embodiment provides, further includes: determine the granularity of raw ore, raw material according to the material inlet width of jaw crusher
The maximum value of the granularity of ore meets following formula 1；
Dmax=(0.75~0.85) B (formula 1)
Wherein, DmaxIndicate the maximum value of the granularity of raw ore, B indicates material inlet width.
Similarly, in order to improve the broken mine efficiency and broken mine torque of jaw crusher, and mine torque is made brokenly to reach optimum value；This
In the method that inventive embodiments provide, further includes: determine the material inlet length of jaw crusher, material inlet according to material inlet width
Length meets following formula 2；
L=(1.25~1.5) B (formula 2)
Wherein, L indicates material inlet length, and B indicates material inlet width.
Further, in the embodiment of the present invention, in order to guarantee jaw crusher in ore breaking process, raw ore and dynamic jaw
There is enough frictional force between liner plate 22, avoid raw ore upward sliding or jump out feed port, need to guarantee jaw crushing
The angle of friction for nibbling dynamic jaw liner plate 22 of the angle less than twice of machine；Wherein, nibbling angle indicates that jaw crusher vises raw ore
When dynamic jaw liner plate 22 and determine the angle between jaw liner plate 12.
Specifically, when reducing due to nibbling angle, jaw crusher productivity increases but reduction ratio reduces, i.e. fragmentation
It is small；When nibbling angle increase, jaw crusher productivity is reduced but reduction ratio increases；And when nibble angle it is too big when, can be by Raw Ore
Stone releases crusher chamber, can not achieve brokenly mine effect.In the embodiment of the present invention, in order to guarantee jaw crusher production with higher
Rate and certain reduction ratio, using nibbling the small shaped form crusher chamber in angle, by jaw crusher nibble angle by 33 ° of the prior art~
38 ° are adjusted to 19 °~23 °.
Further, due to the gape size of jaw crusher will affect jaw crusher broken mine efficiency and load it is big
Small, when gape is big, ore is easier to be discharged, and breaks mine ability and increases, but reduction ratio declines, fragmentation weakens；Gape
When very big, most of material almost will pass through crusher without broken, and fragmentation is weaker；When gape is small, although broken
Than high, but productivity is too low；And the size at angle is nibbled since gape size will affect, in the embodiment of the present invention, according to raw material
The hardness of ore, the material inlet width of jaw crusher and nibble the gape size that angle size determines jaw crusher.
Further, in method provided in an embodiment of the present invention, further includes: in the dynamic jaw liner plate 22 of jaw crusher and dynamic
Adjustment cushion block is removably installed between jaw ontology 21.So set, can be using adjustment cushion block to the gape of jaw crusher
Be adjusted.In addition, hydraulic drive cylinder adjust automatically gape device can also be arranged on jaw crusher, the device is utilized
To realize that the adjust automatically of jaw crusher gape, reduction labor intensity of workers realize jaw crusher according to broken mine electric current
With the purpose of broken mine load adjust automatically gape；When broken mine electric current or broken mine load reduce, alternatively, determining jaw liner plate or moving
After jaw liner plate is worn, hydraulic drive cylinder adjust automatically gape device suitably reduces gape size, broken to improve jaw
Broken machine breaks mine efficiency；When broken mine electric current or broken mine load increase, alternatively, after determining jaw liner plate or dynamic jaw lining plate replacing, it is hydraulic
It pushes cylinder adjust automatically gape device suitably to increase gape size, breaks mine efficiency to improve jaw crusher.
Further, the jaw crusher provided in an embodiment of the present invention that improves is broken in the method for mine efficiency, further includes by jaw
The material feeding of formula crusher and weight plate feed are centrally disposed on same straight line.Specifically, when jaw crusher deviates in weight plate feed
When the heart 25~55mm of line, weight trigger is unable to center feed, will cause feed segregation, thus unilateral mistake when jaw crusher being made to break mine
Load or discontinuity make crusher ontology, basis and dynamic jaw bearing bear biggish unbalance loading, crusher are caused to break mine efficiency
It is low, vibration is big, faults frequent and service life are short.
Further, in method provided in an embodiment of the present invention, further includes: make jaw crusher to mine height 0.5
~2.5m and raw ore carry out brokenly mine production in the case where occupying 60%~90% broken cavity space；So set, energy
Enough improve the broken mine efficiency of crusher.Specifically, it when within the scope of 0.5~2.5m of crusher machine mouth, is given when to mine height
Hopper can guarantee that jaw crusher forebay and dynamic jaw 2 from wearing and impacting, impact raw ore will not directly dynamic
2 top of jaw；In addition, 0.5~2.5m's just falls to mine height when raw ore occupies 60%~90% broken cavity space
Onto the ore of jaw crusher machine mouth, dynamic jaw 2 will not be caused to impact.
So set, can be avoided in actual moving process, a large amount of blankings change through nose plate in jaw crusher
Behind direction, dynamic 2 tooth plate of jaw is rushed at；It avoids being greater than the raw ore of 1m when grade, from higher height in the form of freely falling body
When directly rushing at dynamic jaw position of bearings, dynamic jaw bearing is caused to damage；Can effectively improve jaw crusher broken mine efficiency,
It reduces mechanical oscillation and reduces the number of stoppages.
Further, in method provided in an embodiment of the present invention, further includes: by the eccentric rotary mechanism of jaw crusher
3 speed of mainshaft is set as 100~200r/min.So set, 60~80r/min compared with the prior art, is increasing broken mine
While efficiency, moreover it is possible to avoid crusher chamber from blocking, mine power consumption and cost can be effectively reduced brokenly, improve broken mine efficiency, realize broken
Mine efficiency maximizes.
Further, in method provided in an embodiment of the present invention, further includes: by the broken mine power setting of jaw crusher
For 10~18LHsn (Kw)；2.5~4.5 are set by the reduction ratio of jaw crusher.So set, jaw can be effectively improved
The broken mine efficiency and broken mine torque of crusher.
As it can be seen that the method provided in an embodiment of the present invention for improving the broken mine efficiency of jaw crusher passes through to jaw crusher
To mine frequency, the acquisition modes of raw ore, broken mine waveform, liner plate break mine mode, liner material quality, liner plate thickness, lining plate structure,
Liner plate installation method, dynamic jaw oscillating stroke, raw ore granularity, material inlet length, nibble angle, gape size, the speed of mainshaft,
Broken mine power and reduction ratio are configured adjustment, can improve ore extruding, broken, bending and slabbing action power to jaw crushing
The influence of machine body reduces the broken mine screen of crusher and divides circulating load, machine vibration and marker size, reduces broken mine power consumption,
Improve the broken mine torque, broken mineral products amount and broken mine efficiency of jaw crusher；And the service life of liner plate can be improved, avoid liner plate from existing
Occur the problem of loose or dislocation in use process, reduces labor intensity of workers.
It should be noted that, in this document, the relational terms of such as " first " and " second " or the like are used merely to one
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In addition, placement shape of "front", "rear", "left", "right", "upper", the "lower" herein to be indicated in attached drawing
State is reference.
Finally, it should be noted that the above examples are only used to illustrate the technical scheme of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of method for improving jaw crusher and breaking mine efficiency, which is characterized in that the described method includes:
With the uniform adding raw materials ore of the crusher chamber to mine frequency to jaw crusher of 50Hz~70Hz；
The raw ore is obtained using short-delay blasting mode；
Thread form is set by the broken mine waveform of the jaw crusher, the broken mine waveform wave crest is set as R40mm, trough setting
For R40mm, wave height is set as 80mm, and corrugation pitch is set as 260~300mm；And mine behaviour is carried out brokenly in the jaw crusher
When making, mine is carried out brokenly to the raw ore in such a way that the corresponding liner plate for determining jaw trough of dynamic jaw wave crest breaks mine.
2. the method according to claim 1 for improving jaw crusher and breaking mine efficiency, which is characterized in that use potassium steel
What ZGMn19CrMoNi prepared the jaw crusher determines jaw liner plate and dynamic jaw liner plate, sets the thickness for determining jaw liner plate to
250~300mm sets 200~270mm for the thickness of the dynamic jaw liner plate, and determines jaw liner plate and the dynamic jaw lining described
Hollow lightening hole is arranged in the back side of plate.
3. the method according to claim 2 for improving jaw crusher and breaking mine efficiency, which is characterized in that utilizing the height
Manganese steel prepares described when determining jaw liner plate and the dynamic jaw liner plate, and metallic nickel is added in the potassium steel；
Using the potassium steel prepare it is described determine jaw liner plate and the dynamic jaw liner plate when, metal is added in the potassium steel
Chromium, and make the content for determining jaw liner plate and the crome metal in the dynamic jaw liner plate more than or equal to 1%.
4. the method according to claim 3 for improving jaw crusher and breaking mine efficiency, which is characterized in that use and inlay installation
The dynamic jaw liner plate is fixedly mounted on the dynamic jaw ontology by mode, is determined jaw liner plate by described using mounting means is inlayed and is fixed
It is mounted on and described determines on jaw ontology.
5. the method according to claim 1 or 4 for improving jaw crusher and breaking mine efficiency, which is characterized in that according to described
The hardness of raw ore determines the dynamic jaw oscillating stroke of the jaw crusher.
6. the method according to claim 5 for improving jaw crusher and breaking mine efficiency, which is characterized in that according to the jaw
The material inlet width of crusher determines that the granularity of the raw ore, the maximum value of the granularity of the raw ore meet following public affairs
Formula 1；
Dmax=(0.75~0.85) B (formula 1)
Wherein, DmaxIndicate the maximum value of the granularity of the raw ore, B indicates the material inlet width；
Determine that the material inlet length of the jaw crusher, the material inlet length meet following public affairs according to the material inlet width
Formula 2；
L=(1.25~1.5) B (formula 2)
Wherein, L indicates the material inlet length, and B indicates the material inlet width.
7. the method according to claim 6 for improving jaw crusher and breaking mine efficiency, which is characterized in that break the jaw
The angle of nibbling of broken machine is set as 19 °~23 °, and determines the jaw crusher according to the material inlet width and the angle of nibbling
Gape size.
8. the method according to claim 7 for improving jaw crusher and breaking mine efficiency, which is characterized in that broken in the jaw
Adjustment cushion block is removably installed between the dynamic jaw liner plate and dynamic jaw ontology of broken machine.
9. the method according to claim 8 for improving jaw crusher and breaking mine efficiency, which is characterized in that further include: make institute
It states jaw crusher and is occupying 60%~90% broken cavity space for 0.5~2.5m and the raw ore to mine height
Between in the case where carry out brokenly mine production.
10. improving the method that jaw crusher breaks mine efficiency according to claim 1 or described in 9, which is characterized in that by the jaw
The speed of mainshaft of the eccentric rotary mechanism of formula crusher is set as 100~200r/min；
It is 10~18LHsn (Kw) by the broken mine power setting of the jaw crusher；
2.5~4.5 are set by the reduction ratio of the jaw crusher.
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