CN102764686B - Impact crusher capable of adjusting aggregate fineness modulus - Google Patents
Impact crusher capable of adjusting aggregate fineness modulus Download PDFInfo
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- CN102764686B CN102764686B CN201210262192.4A CN201210262192A CN102764686B CN 102764686 B CN102764686 B CN 102764686B CN 201210262192 A CN201210262192 A CN 201210262192A CN 102764686 B CN102764686 B CN 102764686B
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Abstract
An impact crusher capable of adjusting aggregate fineness modulus comprises a machine case, a feeding device, a crushing cavity, a rotor and a discharge channel, and is characterized in that a discharge opening of the feeding device is provided with a dust shield device for preventing dust from being discharged from the machine case; an airflow forming device is arranged below the crushing cavity, an air guide device is arranged above the crushing cavity; the airflow forming device generates rising airflow in the crushing cavity, the airflow and the meeting dust in the crushing cavity form dust flow, the air guide device forms a negative pressure area above the crushing cavity so as to guide a large amount of dust flow in the negative pressure area, and in this way, the dust can not be discharged from the discharge opening due to the blocking of the dust shield device but only can be discharged from the machine case by the air guide device; the air guide amount of the air guide device is adjustable, and the dust content of the aggregate in the crushing cavity is controlled by adjusting the air guide amount. The dust removing effect and the control of dust content of the crushed aggregate are realized by adjusting the air inlet amount and the air guide amount of the crushing cavity so as to realize the adjustable aggregate fineness modulus.
Description
Technical field
The present invention relates to field of cracking machine, especially relate to a kind of impact crusher of capable of regulating sandstone modulus of fineness.
Background technology
Impact crusher is widely used in the industries such as sandstone production line, metallurgy, colliery, ore dressing, building materials, and it mainly comprises the part compositions such as casing, charging aperture, tripper, Turbulent chamber, rotor, main shaft assembly, base transmission device and motor.Building stones are fallen into by casing upper vertical in the rotor of High Rotation Speed, under the effect of high speed centrifugation power, shunt at the target stone of rotating disk surrounding and produce high-speed shock and highdensity pulverizing in umbellate form mode with another part, building stones are after clashing into mutually, again can be between rotor and casing the bed of material form eddy current multiple impact, friction and pulverize, discharge from bottom hopper.Form closed circuit repeatedly circulation, by screening plant control product grading.Impact type is broken by the principle of " stone-crash-stone ", allowing stone accelerate to throw away with process rotor the stone coming in natural dropping process collides mutually, thereby reach broken object, and the accelerated stone throwing away with naturally fall stone collision time form an eddy current, in return course, carry out again twice fragmentation, few to wear and tear in machines in running, be a kind of efficient, energy-conservation rubble sand equipment processed, more energy-conservation 50% than tradition sand machine processed, be advanced person's sand equipment processed in the world at present.
According to broken material difference, the sandstone powder containing quantity difference that crusher in crushing produces, the powder containing quantity of most of sandstone is between 10%-20%.Modulus of fineness is the key factor that affects sand grating, dust in sandstone can affect the modulus of fineness (the modulus of fineness scope of regular concrete sand is between 1.6-3.7) of sandstone, in order to obtain the sand of different fineness modulus, need further carry out sieve classification to the broken sand of disintegrating machine, general method for sieving has Vibration Screen point-score and air sieve sieve method.Adopt Vibration Screen point-score cost lower, but the easily stifled screen cloth of a large amount of dust containing in the broken sandstone of disintegrating machine, screening efficiency is low; In order to ensure final sandstone output, will increase screen cloth width, and then cost increases, another kind of method for sieving is to adopt air sieve screening, this screening efficiency is high, but equipment price costliness, production cost are high.
Summary of the invention
In order to address the above problem, the invention provides a kind of impact crusher of capable of regulating sandstone modulus of fineness, comprise casing, feed arrangement, crusher chamber, rotor, discharge channel, building stones to be broken enter rotor by the feed arrangement on casing top, rotor high-speed rotation, makes building stones discharge and enter crusher chamber from the outlet of peritrochanteric under the effect of high speed centrifugation power, and building stones high-speed shock in crusher chamber completes fragmentation, building stones after fragmentation are discharged by discharge channel, it is characterized in that:
The discharging opening of described feed arrangement is provided with type dust arrester, for stopping that dust discharges in casing;
Described crusher chamber below is provided with air-flow formation device, crusher chamber top is provided with blower unit, air-flow forms device and in crusher chamber, forms the air-flow rising, dust in air-flow and crusher chamber meets and forms dust stream, blower unit forms negative pressure region above crusher chamber, make a large amount of dust conductances enter this negative pressure region, dust is subject to stopping of type dust arrester and can not discharges from discharging opening, can only in casing, discharge by blower unit;
The air inducing amount of described blower unit is adjustable, by the sandstone powder containing quantity in the big or small controlled fragmentation chamber of adjusting air inducing amount.
Further, described type dust arrester is made up of the uniform polylith rubber slab that is arranged in feed arrangement discharging opening.
Further, described air-flow forms device and comprises air blast and intake stack, and intake stack is arranged at crusher chamber below, and air blast is communicated with crusher chamber by intake stack; Described blower unit comprises air-introduced machine, air inducing pipeline, air quantity adjusting mechanism, and air inducing pipeline is arranged at crusher chamber top, and air-introduced machine is communicated with crusher chamber by air inducing pipeline, and air quantity adjusting mechanism is arranged on air inducing pipeline.
Further, described blower unit also comprises device for recovering powder, and device for recovering powder is communicated with the air inducing pipeline between air-introduced machine and air quantity adjusting mechanism.
Further, described intake stack is provided with 2-6 root, is equally spaced along crusher chamber, and described air inducing pipeline and intake stack quantity equate corresponding and arranges.
Further, described air inducing pipeline adopts high-abrasive material to make or the additional abrasion-proof backing block of insides of pipes.
Further, described intake stack is inclined upwardly and is communicated with crusher chamber, and the sidewall of intake stack and crusher chamber is the angle of 45-90 °, and described air inducing pipeline is downward-sloping to be communicated with crusher chamber, and the sidewall of air inducing pipeline and crusher chamber is the angle of 45-90 °.
Further, described air inducing pipeline cross-sectional area is not less than intake stack cross-sectional area.
Further, the air quantity of air-introduced machine is controlled at 300-800m by described air quantity adjusting mechanism
3between/h, the air quantity of air blast regulates in the scope that is less than air-introduced machine air quantity.
Further, described air quantity adjusting mechanism is the air door being arranged on air inducing pipeline, and the aperture area of air door is adjustable.
The present invention has following beneficial effect:
The impact crusher of capable of regulating sandstone modulus of fineness provided by the invention, the air-flow that air-flow forms device generation forms spiralling eddy current in crusher chamber by intake stack, and this eddy current is kicked up the dust in crusher chamber; Dust is isolated in crusher chamber inside, feed arrangement lower end by type dust arrester; Blower unit forms negative pressure region by the air inducing pipeline that is distributed on crusher chamber top above crusher chamber, the dust of kicking up in crusher chamber is sucked to air inducing pipeline, can control powder containing quantity by damper aperture area size simultaneously, by regulating intake and the air inducing amount in crusher chamber, reach the control of dust removing effects and broken sandstone powder containing quantity, while stopping the sandstone process vibratory sieve after crusher in crushing, stop up mesh, finally realizing sandstone modulus of fineness can regulate and control.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention is further detailed explanation.
Fig. 1 is the structural representation of impact crusher in specific embodiment.
Fig. 2 is schematic diagram when impact crusher is worked in specific embodiment.
Detailed description of the invention
Technical scheme for a better understanding of the present invention, describes embodiment provided by the invention in detail below in conjunction with accompanying drawing.
Shown in Fig. 1, Fig. 2, the impact crusher of a kind of capable of regulating sandstone modulus of fineness of the present invention, comprises that casing 1, feed arrangement 2, crusher chamber 3, rotor 4, discharge channel 5, type dust arrester 6, air-flow form device 7, blower unit 8;
Type dust arrester 6 is made up of the uniform polylith rubber slab that is arranged in feed arrangement discharging opening, for stopping that dust discharges in casing;
Air-flow forms device 7 and comprises air blast 71 and intake stack 72, intake stack is arranged at crusher chamber 3 belows, intake stack 72 is inclined upwardly and is communicated with crusher chamber 3, intake stack 72 is the angle of 75 ° with the sidewall of crusher chamber 3, described intake stack 72 is provided with 4, is equally spaced along crusher chamber 3, and air blast 71 is communicated with crusher chamber 3 by intake stack 72, blower unit 8 comprises air-introduced machine 81, air inducing pipeline 82, air quantity adjusting mechanism 83, device for recovering powder 84, air inducing pipeline 82 is arranged at crusher chamber 3 tops, air inducing pipeline 82 is downward-sloping to be communicated with crusher chamber 3, and be the angle of 40 ° with the sidewall of crusher chamber 3, described air inducing pipeline 82 is provided with 4 and setting corresponding to intake stack 72, air quantity adjusting mechanism 83 is for being arranged on the adjustable dedusting air door of aperture area on air inducing pipeline 82, device for recovering powder 84 is arranged on the air inducing pipeline 82 between air-introduced machine 81 and air quantity adjusting mechanism 82, air inducing pipeline 82 cross-sectional areas are not less than intake stack 72 cross-sectional areas, air inducing pipeline 82 adopts high-abrasive material to make or the additional abrasion-proof backing block of insides of pipes,
Shown in Fig. 1, Fig. 2, in the present embodiment, the specific works process of the impact crusher of capable of regulating sandstone modulus of fineness is as follows:
Building stones enter rotor 4 by the feed arrangement 2 on casing 1 top, and rotor 4 due to rotor centrifugal action, makes that rotor 4 is inner forms negative pressure and then by portion of air Q in the process of High Rotation Speed
0introduce in rotor 4, and be divided into many points of air-flow Δ Q by rotor 4
0enter crusher chamber 3, part dust is kicked up simultaneously, produce dust stream Q
m1.Material enters the rear quilt of rotor 4 by feed arrangement 2 and throws away at a high speed, then impinge upon and on the rock frame in crusher chamber 4, produce a large amount of unequigranular dust, due to the Action of Gravity Field of dust, most dust drop on rock frame or with broken sandstone and together pass crusher chamber 3 to whereabouts.
The compressed air stream Q that the air blast 71 of air-flow formation device 7 produces
1spray and enter crusher chamber 3 by intake stack 72, be communicated with because intake stack 72 is tilted to crusher chamber 3, at the spiralling air-flow Q of the interior formation of crusher chamber 3
1, this air-flow Q
1in crusher chamber 3 with to the dust sandstone that contains falling, meet, dust different a large amount of particles is kicked up and flowed Q with dust
m1the common dust stream Q that forms
m2.
Dust stream Q
m2while moving upward, because stopping of type dust arrester 6 can not spray outside casing along feed arrangement 2, the air-introduced machine 81 of blower unit 8 forms negative pressure region by air inducing pipeline 82 at crusher chamber 3 upsides, makes a large amount of dust conductances enter this negative pressure region, and then this dust stream Q
m2finally reclaimed by device for recovering powder 84 by air inducing pipeline 82, dedusting air door 83.
Regulate dedusting air door 83 and air blast 71 to control air inducing amount and intake, air inducing amount remains on 300-800m
3between/h, air inducing amount is less than intake, by regulating sandstone powder containing quantity in air inducing amount and intake and then controlled fragmentation chamber 3, reaches the effect that Variable Control disintegrating machine produces the modulus of fineness of sandstone particle.
The above, be only preferred embodiment of the present invention, therefore can not limit scope of the invention process with this, the equivalence of doing according to the present patent application the scope of the claims and description changes and modifies, and all should still remain within the scope of the patent.
Claims (10)
1. the impact crusher of a capable of regulating sandstone modulus of fineness, comprise casing, feed arrangement, crusher chamber, rotor, discharge channel, building stones to be broken enter rotor by the feed arrangement on casing top, rotor high-speed rotation, make building stones discharge and enter crusher chamber from the outlet of peritrochanteric under the effect of high speed centrifugation power, building stones high-speed shock in crusher chamber completes fragmentation, and the building stones after fragmentation are discharged by discharge channel, it is characterized in that:
The discharging opening of described feed arrangement is provided with type dust arrester, for stopping that dust discharges in casing;
Described crusher chamber below is provided with air-flow formation device, crusher chamber top is provided with blower unit, air-flow forms device and in crusher chamber, forms the air-flow rising, dust in air-flow and crusher chamber meets and forms dust stream, blower unit forms negative pressure region above crusher chamber, make a large amount of dust conductances enter this negative pressure region, dust is subject to stopping of type dust arrester and can not discharges from discharging opening, can only in casing, discharge by blower unit;
The air inducing amount of described blower unit is adjustable, by the sandstone powder containing quantity in the big or small controlled fragmentation chamber of adjusting air inducing amount.
2. the impact crusher of capable of regulating sandstone modulus of fineness according to claim 1, is characterized in that: described type dust arrester is made up of the uniform polylith rubber slab that is arranged in feed arrangement discharging opening.
3. the impact crusher of capable of regulating sandstone modulus of fineness according to claim 1, it is characterized in that: described air-flow forms device and comprises air blast and intake stack, intake stack is arranged at crusher chamber below, and air blast is communicated with crusher chamber by intake stack; Described blower unit comprises air-introduced machine, air inducing pipeline, air quantity adjusting mechanism, and air inducing pipeline is arranged at crusher chamber top, and air-introduced machine is communicated with crusher chamber by air inducing pipeline, and air quantity adjusting mechanism is arranged on air inducing pipeline.
4. the impact crusher of capable of regulating sandstone modulus of fineness according to claim 3, is characterized in that: described blower unit also comprises device for recovering powder, and device for recovering powder is communicated with the air inducing pipeline between air-introduced machine and air quantity adjusting mechanism.
5. the impact crusher of capable of regulating sandstone modulus of fineness according to claim 3, is characterized in that: described intake stack is provided with 2-6 root, is equally spaced along crusher chamber, and described air inducing pipeline and intake stack quantity equate corresponding and arranges.
6. according to the impact crusher of the capable of regulating sandstone modulus of fineness described in claim 3 or 5, it is characterized in that: described air inducing pipeline adopts high-abrasive material to make or the additional abrasion-proof backing block of insides of pipes.
7. according to the impact crusher of the capable of regulating sandstone modulus of fineness described in claim 3 or 5, it is characterized in that: described intake stack is inclined upwardly and is communicated with crusher chamber, the sidewall of intake stack and crusher chamber is the angle of 45-90 °, described air inducing pipeline is downward-sloping to be communicated with crusher chamber, and the sidewall of air inducing pipeline and crusher chamber is the angle of 45-90 °.
8. according to the impact crusher of the capable of regulating sandstone modulus of fineness described in claim 3 or 5, it is characterized in that: described air inducing pipeline cross-sectional area is not less than intake stack cross-sectional area.
9. the impact crusher of capable of regulating sandstone modulus of fineness according to claim 3, is characterized in that: the air quantity of air-introduced machine is controlled at 300-800m by described air quantity adjusting mechanism
3between/h, the air quantity of air blast regulates in the scope that is less than air-introduced machine air quantity.
10. according to the impact crusher of the capable of regulating sandstone modulus of fineness described in claim 3 or 9, it is characterized in that: described air quantity adjusting mechanism is the air door being arranged on air inducing pipeline, the aperture area of air door is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210262192.4A CN102764686B (en) | 2012-07-27 | 2012-07-27 | Impact crusher capable of adjusting aggregate fineness modulus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210262192.4A CN102764686B (en) | 2012-07-27 | 2012-07-27 | Impact crusher capable of adjusting aggregate fineness modulus |
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| CN102764686A CN102764686A (en) | 2012-11-07 |
| CN102764686B true CN102764686B (en) | 2014-09-03 |
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| CN104194857B (en) * | 2013-03-22 | 2016-12-28 | 穆罕默德.拉克米尔 | Biomass material processing method and system thereof |
| CN103433105B (en) * | 2013-09-04 | 2015-09-16 | 福建南方路面机械有限公司 | A kind of impact crusher and breaking method thereof |
| CN106140632A (en) * | 2016-08-08 | 2016-11-23 | 南昌矿山机械有限公司 | A kind of screening winnower for sandstone |
| CN106984409A (en) * | 2017-04-19 | 2017-07-28 | 信阳山信生物食品科技有限公司 | Aspirator and application method are crushed in a kind of rice protein negative pressure series connection |
| CN108732071A (en) * | 2018-08-02 | 2018-11-02 | 贵州成智重工科技有限公司 | A kind of detection control apparatus and method of fineness modulus |
| CN109012979B (en) * | 2018-09-12 | 2023-10-03 | 南昌矿机集团股份有限公司 | Vertical shaft type impact crusher for removing powder and dust and method for removing powder and dust |
| CN110861241B (en) * | 2019-11-25 | 2021-11-05 | 嘉兴沃瑞科技有限公司 | But broken machine of retrieving of resources |
| CN112844640A (en) * | 2020-12-21 | 2021-05-28 | 南昌矿山机械有限公司 | Anti-blocking return air pipe and return air anti-blocking method of vertical shaft type impact crusher |
| CN113967521B (en) * | 2021-10-21 | 2022-05-27 | 四川瑞驰拓维机械制造有限公司 | Energy-saving fluidized bed type jet mill |
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| GB985569A (en) * | 1960-11-04 | 1965-03-10 | Universal Milling And Machiner | Improvements in or relating to mills |
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| CN102764686A (en) | 2012-11-07 |
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Address after: Fengze District of Quanzhou City, Fujian province 362000 Xunmei Industrial Zone Patentee after: Fujian Nanfang pavement machinery Co., Ltd Address before: Fengze District of Quanzhou City, Fujian province 362000 Xunmei Industrial Zone Patentee before: FUJIAN SOUTH HIGHWAY MACHINERY Co.,Ltd. |
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