CN111871575B - Super-large special type pulling-breaking fine crusher and fine crushing method thereof - Google Patents

Super-large special type pulling-breaking fine crusher and fine crushing method thereof Download PDF

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Publication number
CN111871575B
CN111871575B CN202010745493.7A CN202010745493A CN111871575B CN 111871575 B CN111871575 B CN 111871575B CN 202010745493 A CN202010745493 A CN 202010745493A CN 111871575 B CN111871575 B CN 111871575B
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China
Prior art keywords
rotor
crushing
special type
left rotor
right rotor
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CN202010745493.7A
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Chinese (zh)
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CN111871575A (en
Inventor
姜伟
李寿海
袁军东
谢军
薛云高
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Huanglong Crushing Conveyor Manufacturing Co ltd
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Huanglong Crushing Conveyor Manufacturing Co ltd
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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
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/20—Disintegrating by mills having rotary beater elements ; Hammer mills with two or more co-operating rotors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/28—Shape or construction of beater elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/286—Feeding or discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/288—Ventilating, or influencing air circulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
    • B02C4/08—Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/286—Feeding or discharge
    • B02C2013/28618—Feeding means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

The invention discloses a super-large special type breaking fine crusher, which comprises a double-toothed roller device for coarsely crushing materials, a reversible counterattack hammer device for finely crushing the materials, and a material distribution device arranged between the double-toothed roller device and the reversible counterattack hammer device, wherein the double-toothed roller device is arranged above the reversible counterattack hammer device and comprises a left rotor and a right rotor which are arranged side by side, the position of the material distribution device can be adjusted along a vertical line between a rotating shaft of the left rotor and a rotating shaft of the right rotor, and the material distribution device is used for uniformly guiding the materials output by the double-toothed roller device to the left rotor and the right rotor. The invention can make the loads of the left rotor and the right rotor in the reversible counterattack hammer structure equal, and prolong the service life of the crusher.

Description

Super-large special type pulling-breaking fine crusher and fine crushing method thereof
Technical Field
The invention relates to the technical field of crushers, in particular to an oversized special type pulling-crushing fine crusher and a fine crushing method thereof.
Background
The circulating fluidized bed boiler has the characteristics of wide coal application range, high mechanization and automation degree, small environmental pollution and the like, is continuously used in partial power plant equipment in China from the last 60 centuries, and is rapidly popularized to the industrial fields of coal, metallurgy, building materials, mines, electric power and the like. According to the existing process, in a coal conveying system at the front end of a circulating fluidized bed boiler, two-stage crushing is generally adopted for crushing coal: the first-stage crushing is coarse crushing, a ring hammer crusher or a double-geared roller crusher is adopted to crush 300mm lump coal into 30-50 mm coal particles, the second-stage crushing is fine crushing, a reversible counterattack hammer crusher is adopted to crush 30-50 mm coal particles into finished coal particles below 8mm, a coarse crushing operation crusher and a fine crushing operation crusher are arranged on two floors of a crushing building, and the coarse crushing operation crusher and the fine crushing operation crusher are connected through a coal dropping pipe.
The present patent that has disclosed is named as "combined type breaker", the chinese utility model patent that publication number is "CN 203540609U", this patent discloses including the structure of double toothed roller structure, reversible counterattack hammer structure and guide cone, reversible counterattack hammer structure is including being on a parallel with a pair of rotor of fluted roller, the guide cone is located between fluted roller and rotor, and this guide cone is located the perpendicular bisector of two fluted rollers, this patent utilizes double toothed roller structure to realize the coarse crushing of coal grain, utilize the guide cone to give reversible counterattack hammer structure with the material direction of double toothed roller structure output, utilize reversible counterattack hammer structure to realize the fine crushing of coal grain.
However, the above-mentioned patent fails to make the loads of the rotors at both sides equal, that is, when the coarsely crushed coal particles are introduced into the left or right rotor for fine crushing, the load of the rotor is increased sharply, so that the loads of the left and right rotors are not equal, which affects the service life of the crusher.
Disclosure of Invention
The invention aims to provide an oversized special breaking fine crusher and a fine crushing method thereof, which are designed for the oversized special breaking fine crusher, can enable the loads of a left rotor and a right rotor in a reversible counterattack hammer structure to be equal, and prolong the service life of the crusher.
The embodiment of the invention is realized by the following technical scheme:
the utility model provides a super large special type breaks fine crusher, including the reversible counterattack hammer device that is used for the double gear roller device of coarse crushing material and is used for the material in small, broken bits in small, and this double gear roller device locates this reversible counterattack hammer device top, this reversible counterattack hammer device is including the left rotor and the right rotor that set up side by side, still including locating the feed divider between double gear roller device and the reversible counterattack hammer device, this feed divider can follow the perpendicular line adjusting position between this left rotor pivot and this right rotor pivot, and this feed divider is used for leading left rotor and right rotor with the material of double gear roller device output equally divide.
In one embodiment of the invention, a material ejecting area is arranged at the lowest end of the circumference of the left rotor or the right rotor; the device also comprises a pair of diversion counterattack devices symmetrically arranged below the reversible counterattack hammer device, and the diversion counterattack devices are used for blocking the materials thrown out by the material throwing area and guiding the materials to move to the discharge hole.
In an embodiment of the invention, the material separating device includes a first-stage material separating mechanism and a second-stage material separating mechanism located below the first-stage material separating mechanism, the first-stage material separating mechanism and the second-stage material separating mechanism are both disposed on a perpendicular bisector of the left rotor and the right rotor, and the position of the first-stage material separating mechanism can be adjusted along a perpendicular line between the rotating shaft of the left rotor and the rotating shaft of the right rotor.
In one embodiment of the invention, the primary material distribution mechanism comprises a suspension bracket, a first material distribution cone and an adjusting assembly; the suspension bracket is arranged in the shell, and the shell is provided with a sliding chute for adjusting the position of the suspension bracket; the first material distribution cone is fixed on the suspension bracket; the adjusting component is used for adjusting the position of the suspension frame in the sliding groove according to the load current of the left rotor or the right rotor driven by the motor.
In an embodiment of the present invention, the adjusting assembly includes a current sensor, a driving member and a controller, the current sensor is electrically connected to the controller, and the current sensor is used for detecting a load current of the motor driving the left rotor or the right rotor.
In an embodiment of the present invention, the first distribution cone includes several sub-distribution cones arranged side by side along the axis of the hanger.
In an embodiment of the present invention, the sub-distribution cones at both ends of the first distribution cone are configured with tightening bolts.
In an embodiment of the invention, the diversion impact device includes a bracket and a diversion impact plate, the bracket is disposed in the casing, and the bracket is fixed at two ends of the diversion impact plate; the flow guide impact plate is provided with air holes along the plate thickness direction.
In an embodiment of the invention, a longitudinal section of the air hole is configured as an isosceles trapezoid, a small-diameter end of the air hole is configured as an air inlet end, and a large-diameter end of the air hole is configured as an air outlet end.
In an embodiment of the present invention, the bracket is configured with a rotating shaft and a driving member, the rotating shaft is rotatably connected to the housing, and the driving member is configured to drive the rotating shaft to rotate.
A super large special type breaking and fine crushing method comprises the following steps that materials are sent into a double-gear roller structure to be coarsely crushed; after the material is distributed by the first-stage distribution mechanism and the second-stage distribution mechanism, the coarsely crushed material is uniformly guided to the left rotor and the right rotor, and the coarsely crushed material enters a gap between the left rotor and the impact device and a gap between the right rotor and the impact device for fine crushing.
The technical scheme of the embodiment of the invention at least has the following advantages and beneficial effects:
according to the embodiment of the invention, the material distribution device capable of adjusting the position along the perpendicular line between the left rotor rotating shaft and the right rotor rotating shaft is arranged, the material distribution device comprises the first-stage material distribution mechanism and the second-stage material distribution mechanism, and when a material with a larger volume falls into the left rotor, the load of the left rotor is increased.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial schematic view of FIG. 1;
fig. 3 is a schematic structural view of the impact device of the present invention.
Icon: 1-double toothed roller device, 21-left rotor, 22-right rotor, 31-first-stage material distribution mechanism, 311-suspension bracket, 312-sub material distribution cone, 313-chute, 314-tightening bolt, 32-second-stage material distribution mechanism, 4-material casting area, 5-guide counterattack device, 51-bracket, 52-guide counterattack plate, 61-first counterattack component, 611-first counterattack plate, 612-first regulator, 613-first anti-slip tooth, 62-second counterattack component, 621-second counterattack plate, 622-second regulator and 623-second anti-slip tooth.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
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 if the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the present invention is used, the description is merely for convenience of describing the present invention and simplifying the description, but the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and operation, and thus, cannot be understood as the limitation of the present invention.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "configured," and "connected" should be interpreted broadly, and may be, for example, 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.
Referring to fig. 1 to 3, a super large special type breaking fine crusher comprises a double-toothed roller device 1 for coarsely crushing materials and a reversible counterattack hammer device for finely crushing materials, wherein the double-toothed roller device 1 is arranged above the reversible counterattack hammer device, the reversible counterattack hammer device comprises a left rotor 21 and a right rotor 22 which are arranged side by side, and the super large special type breaking fine crusher further comprises a material distribution device arranged between the double-toothed roller device 1 and the reversible counterattack hammer device, the material distribution device can adjust the position along a perpendicular line between a rotating shaft of the left rotor 21 and a rotating shaft of the right rotor 22, and the material distribution device is used for uniformly guiding the materials output by the double-toothed roller device 1 to the left rotor 21 and the right rotor 22.
The super-large special type breaking fine crusher comprises a shell, a feeding hole and a discharging hole, wherein the shell is provided with a double-gear-roller device 1 and a reversible counterattack hammer device, the feeding hole is arranged above the double-gear-roller device 1, and the discharging hole is arranged below the reversible counterattack hammer device. This double-toothed roller device 1 includes two fluted rollers that set up side by side, and two these fluted rollers rotate with steering in opposite directions, utilize two fluted rollers extrusion to accomplish the coarse crushing of material. The reversible counterattack hammer device comprises a left rotor 21 and a right rotor 22 which are arranged side by side, the left rotor 21 and the right rotor 22 rotate in opposite directions, counterattack devices are respectively arranged on the left side of the left rotor 21 and the right side of the right rotor 22, and fine crushing of materials is completed by utilizing the left rotor 21 and the counterattack devices, and the right rotor 22 and the counterattack devices.
In order to make the loads of the left rotor and the right rotor in the reversible counterattack hammer structure equal and prolong the service life of the crusher, a material separating device is arranged between the double-toothed roller device 1 and the reversible counterattack hammer device, the material separating device comprises a first-stage material separating mechanism 31 and a second-stage material separating mechanism 32 positioned below the first-stage material separating mechanism 31, the first-stage material separating mechanism 31 and the second-stage material separating mechanism 32 are both arranged on a vertical bisector of the left rotor 21 and the right rotor 22, and the position of the first-stage material separating mechanism 31 can be adjusted along a vertical line between a rotating shaft of the left rotor 21 and a rotating shaft of the right rotor 22, namely the first-stage material separating mechanism 31 can move to one side of the left rotor 21 or one side of the right rotor 22 along a straight line, so as to achieve the purpose of adjusting the position of the first-stage material separating device. The first-stage material distribution mechanism 31 comprises a suspension bracket 311, a first material distribution cone and an adjusting component; the hanging bracket 311 is arranged in the casing, the casing is provided with a sliding groove 313 for adjusting the position of the hanging bracket 311, and two ends of the hanging bracket 311 can be provided with extension shafts which are inserted into the sliding groove 313 and can slide along the sliding groove 313; the suspension bracket 311 is also provided with a mounting groove for mounting a first distribution cone, the first distribution cone is fixed on the suspension bracket 311, the first distribution cone comprises a plurality of sub-distribution cones 312 which are arranged side by side along the axis of the suspension bracket 311, the sub-distribution cones 312 at two ends of the first distribution cone are provided with tightening bolts 314, the first distribution cone adopts a structure formed by splicing a plurality of small distribution cones, and each sub-distribution cone 312 is fixed with the suspension bracket 311 through a bolt, so that the replacement and maintenance of the first distribution cone are convenient, and only the damaged or worn sub-distribution cone 312 needs to be replaced during maintenance, thereby avoiding the whole replacement of the first distribution cone, improving the maintenance efficiency and saving the maintenance cost. In addition, in order to improve the overall stability of the first material distribution cone, in the technical scheme, two tightening bolts 314 are respectively arranged at two ends of the first material distribution cone, namely, two tightening bolts 314 are respectively arranged at two ends of the suspension frame 311, bolt holes are respectively arranged at two ends of the suspension frame 311, threaded holes are axially arranged on the sub material distribution cone 312 along the suspension frame 311, when the tightening bolts 314 are installed, the tightening bolts 314 penetrate through the bolt holes at the end part of the suspension frame 311 and are in threaded connection with the small material distribution cones at the end part of the suspension frame 311, then the tightening bolts 314 are rotated, and the tightening bolts 314 at the two ends of the suspension frame 311 are used for applying opposite-top pressure to the two ends of the first material distribution cone, so that the small material distribution cones in the first material distribution cone are mutually extruded and tightly attached. The adjusting assembly is used for adjusting the position of the suspension bracket 311 in the sliding groove 313 according to the load current of the motor driving the left rotor 21 or the right rotor 22, and the adjusting assembly comprises a current sensor, a driving member and a controller, wherein the current sensor is electrically connected with the controller, and the current sensor is used for detecting the load current of the motor driving the left rotor 21 or the right rotor 22. When the double-gear roller device 1 is used for crushing the materials. The driving member may be a structure including a screw rod and a servo motor, and the screw rod is connected to two ends of the suspension bracket 311, and the servo motor drives the screw rod to rotate, so that the screw rod drives the suspension bracket 311 to move along the sliding groove 313. The driving member may be any other structure capable of pushing the hanging bracket 311 to move along the sliding slot 313. Two current sensors are provided, one of which is connected to the motor driving the left rotor 21 and the other of which is connected to the motor driving the right rotor 22, and the current sensors are commonly used in the art and are used to monitor changes in the load current of the motors. The current sensor may be replaced by other circuits that monitor the load current of the motor. The controller is electrically connected with the current sensor and the servo motor, a threshold value of load current change is preset in the controller, taking the left rotor 21 as an example, when the coarsely crushed materials with larger volume enter a gap between the left rotor 21 and the counterattack device, so that the load of the left rotor 21 is increased, the resistance of the left rotor 21 for crushing the materials is increased, and the load current of the left rotor 21 motor is also increased, when the current sensor of the left rotor 21 monitors that the load current of the left rotor 21 is larger than the set threshold value, the controller controls the driving piece to act, so that the primary material distributing mechanism 31 moves to one side of the left rotor 21 along the sliding groove 313, the material increment of one side of the left rotor 21 is reduced, the material increment of one side of the right rotor 22 is increased, the materials on the side of the left rotor 21 are balanced to be equal to the materials on the side of the right rotor 22, the load currents of the left rotor 21 motor and the right rotor 22 motor are further equal, and the loads of the left rotor 21 and the right rotor 22 are equal to realize that the two left and right rotors in the reversible counterattack hammer structure are equal, the service life of the crusher is prolonged, and the abrasion of the left rotor 21 side and the right rotor 22 side is the same. Equal here means equal within an error allowance. And the controller calculates the percentage of the actual load current exceeding the set threshold according to the actual load current of the motor and the set threshold, and then calculates the offset of the first-stage material-separating mechanism 31 moving along the chute 313 according to the percentage.
It should be noted that, after the loads of the left rotor 21 and the right rotor 22 are equal, the current sensor in the present technical solution can still continuously monitor the load currents of the motors of the left rotor 21 and the right rotor 22. By adjusting the first-stage material distributing mechanism 31, the loads of the left rotor 21 and the right rotor 22 are equal, and at this time, the load currents of the motors of the left rotor 21 and the right rotor 22 are still in a state of being larger than a conventional value, and the feeding amount of the left rotor 21 side is smaller than the feeding amount of the right rotor 22 side, that is, after a period of time, the load of the left rotor 21 is smaller than the load of the right rotor 22, and when the current sensor of the motor of the right rotor 22 monitors that the load current is larger than a set threshold value, the controller controls the driving piece to act, so that the first-stage material distributing mechanism 31 moves to the right rotor 22 side along the sliding groove 313, the material increment of the right rotor 22 side is reduced, the material increment of the left rotor 21 side is increased, the material increment of the left rotor 21 side is balanced to be equal to the material of the right rotor 22 side, and the load currents of the motors of the left rotor 21 and the right rotor 22 are further equalized.
It should be noted that, the controller may also preset a shutdown threshold value with an excessively large load current, in order to avoid the motor overload damage, the shutdown threshold value set in the controller is smaller than a load current value of the motor overload damage, and when the load currents of the left rotor 21 motor and the right rotor 22 motor continuously increase and the actual load current value reaches the shutdown threshold value, the controller controls to automatically shut down the left rotor 21 motor and the right rotor 22 motor.
It should be noted that the taper of the second-stage material distribution mechanism 32 needs to be greater than the taper of the first material distribution taper in the first-stage material distribution mechanism 31, and the second-stage material distribution mechanism 32 is used for guiding the material distributed by the first-stage material distribution mechanism 31 to the left rotor 21 or the right rotor 22, so as to prevent the material from directly falling into the middle area between the left rotor 21 and the right rotor 22.
In some embodiments, the lowest end of the circumference of the left rotor 21 or the right rotor 22 is provided with a material projection area 4; the device also comprises a pair of diversion counterattack devices 5 which are symmetrically arranged below the reversible counterattack hammer device, wherein the diversion counterattack devices 5 are used for blocking the materials thrown out by the material throwing area 4 and guiding the materials to move to the discharge hole. Because the left rotor 21 and the right rotor 22 in the reversible counterattack hammer device have certain rotating speeds, the materials after fine crushing are carried by the left rotor 21 or the right rotor 22, the materials form a material projection area 4 at the bottom end of the circumference of the left rotor 21 or the right rotor 22, the materials can be projected along the tangential direction of the circumference of the left rotor 21 or the right rotor 22, the projected materials can collide in the discharge port in a messy way, and the discharge port can be projected from different angles. Resulting in a crusher whose discharge is difficult to control and collect. In order to facilitate the collection of the discharged materials at the discharge port and avoid the discharge port from randomly throwing out the materials, the technical scheme is that a pair of flow guide counterattack devices 5 are arranged below the reversible counterattack hammer device, each flow guide counterattack device 5 comprises a bracket 51 and a flow guide counterattack plate 52, the brackets 51 are arranged in a machine shell, the brackets 51 are fixed at two ends of each flow guide counterattack plate 52, the flow guide counterattack plates 52 are obliquely arranged, and after the materials thrown out from the material throwing area 4 impact on the flow guide counterattack plates 52, the flow guide counterattack plates 52 are utilized to change the motion trajectories of the materials and reduce the motion speed of the materials, so that the materials can be discharged from the discharge port in a relatively regular motion direction. Moreover, the flow guide impact plate 52 can impact and crush the materials again, so that the crushing effect is enhanced. Because the left rotor 21 or the right rotor 22 rotates to stir the surrounding air flow and form wind, in order to avoid the blocking of the guide counterattack plate 52 to the wind and the influence of the turbulent flow formed after the wind hits the guide counterattack plate 52 on the trajectory of material casting, in the technical scheme, the guide counterattack plate 52 is provided with wind holes along the plate thickness direction, the longitudinal sections of the wind holes are configured into an isosceles trapezoid, the small diameter end of the wind holes is configured into a wind inlet end, and the large diameter end of the wind holes is configured into a wind outlet end. By providing the air holes, air can smoothly pass through the diversion impact plate 52, and materials can only impact on the diversion impact plate 52. And in order to avoid the material to block up the wind hole, the longitudinal section configuration of this wind hole is isosceles trapezoid, and the path end configuration of this wind hole is air inlet end, and the path end configuration of this wind hole is air outlet end, and the diameter of this path end sets up according to this breaker ejection of compact particle size, and the diameter of this path end needs to be less than ejection of compact particle size, prevents that the material from getting into the wind hole and blockking up the wind hole. In order to facilitate the adjustment of the angle of the diversion impact plate 52 to achieve a better material guiding effect, the bracket 51 is provided with a rotating shaft and a driving member, the rotating shaft is rotatably connected with the housing, and the driving member is used for driving the rotating shaft to rotate. The driving member may be a stepping motor or a servo motor, and the rotation of the diversion impact plate 52 is realized through the control of the stepping motor or the servo motor.
It should be noted that the impact device in this embodiment includes the first impact assembly 61 and the second impact assembly 62, the first impact assembly 61 includes the first impact plate 611 and the first adjuster 612, the first anti-slip tooth 613 is disposed on the inner wall of the first impact plate 611, and the distance from the first impact plate 611 to the left rotor 21 or the right rotor 22 can be adjusted through the first adjuster 612, so as to achieve one-time control of the material crushing degree. The second impact assembly 62 comprises a second impact plate 621 and a second regulator 622, a second anti-slip tooth 623 is arranged on the inner wall of the second impact plate 621, and the distance from the second impact plate 621 to the left rotor 21 or the right rotor 22 can be regulated through the second regulator 622 so as to realize secondary control on the crushing degree of materials. The existing impact device is of an integral structure, when the distance from an impact plate to a left rotor 21 or a right rotor 22 is adjusted, the adjusting precision is not high, the control effect on the discharged particle size is not good, the discharged particle size is 8mm if the design requirement, and the actual discharged particle size is 10 mm. This embodiment is through setting up the counterattack device to first counterattack subassembly 61 and the second counterattack subassembly 62 that separates each other, and first counterattack subassembly 61 and the equal independent regulation of second counterattack subassembly 62 have improved the regulation precision, have strengthened the control effect to ejection of compact particle diameter. The first adjuster 612 and the second adjuster 622 are both prior art.
A super large special type breaking and fine crushing method comprises the following steps that materials are sent into a double-gear roller structure to be coarsely crushed; after the material is distributed by the first-stage distributing mechanism 31 and the second-stage distributing mechanism 32, the coarsely crushed material is equally guided to the left rotor 21 and the right rotor 22, and the coarsely crushed material enters a gap between the left rotor 21 and the impact device and a gap between the right rotor 22 and the impact device for fine crushing.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A super large special type breaking fine crusher comprises a double gear roller device for coarsely crushing materials and a reversible counterattack hammer device for finely crushing the materials, wherein the double gear roller device is arranged above the reversible counterattack hammer device, the reversible counterattack hammer device comprises a left rotor and a right rotor which are arranged side by side, and the special type breaking fine crusher is characterized by also comprising a distributing device arranged between the double gear roller device and the reversible counterattack hammer device, the distributing device can adjust the position along a vertical line between a rotating shaft of the left rotor and a rotating shaft of the right rotor, and the distributing device is used for uniformly guiding the materials output by the double gear roller device to the left rotor and the right rotor;
the material distributing device comprises a first-stage material distributing mechanism, the first-stage material distributing mechanism is arranged on a perpendicular bisector of the left rotor and the right rotor, and the position of the first-stage material distributing mechanism can be adjusted along a perpendicular line between a rotating shaft of the left rotor and a rotating shaft of the right rotor;
the first-stage material distribution mechanism comprises a suspension bracket, a first material distribution cone and an adjusting assembly; the suspension bracket is arranged in the shell, and the shell is provided with a sliding chute for adjusting the position of the suspension bracket; the first material distributing cone is fixed on the suspension bracket; the adjusting component is used for adjusting the position of the suspension frame in the sliding groove according to the load current of the left rotor or the right rotor driven by the motor.
2. The oversized special type pulling and crushing fine crusher as claimed in claim 1, wherein a material ejecting area is arranged at the lowest end of the circumference of the left rotor or the right rotor;
the device also comprises a pair of diversion counterattack devices symmetrically arranged below the reversible counterattack hammer device, and the diversion counterattack devices are used for blocking the materials thrown out by the material throwing area and guiding the materials to move to the discharge hole.
3. The super large special type breaking fine crusher according to claim 1, wherein the material distributing device comprises a second grade material distributing mechanism located below the first grade material distributing mechanism, and the second grade material distributing mechanism is located on a perpendicular bisector of the left rotor and the right rotor.
4. The oversized special type pulling and crushing fine crusher according to claim 1, wherein the first distributing cone comprises a plurality of sub-distributing cones arranged side by side along the axis of the suspension bracket.
5. The super large special type breaking and crushing machine of claim 4, wherein the sub-distribution cones at both ends of the first distribution cone are provided with tightening bolts.
6. The super large special type breaking and crushing machine as claimed in claim 2, wherein the flow guiding impact device comprises a bracket and a flow guiding impact plate, the bracket is arranged in the casing, and the bracket is fixed at two ends of the flow guiding impact plate; the flow guide impact plate is provided with air holes along the plate thickness direction.
7. The oversized special type pulling and crushing fine crusher as claimed in claim 6, wherein the longitudinal section of the air hole is configured as an isosceles trapezoid, the small diameter end of the air hole is configured as an air inlet end, and the large diameter end of the air hole is configured as an air outlet end.
8. The oversized special type pulling and crushing machine as claimed in claim 6, wherein the bracket is configured with a rotating shaft and a driving member, the rotating shaft is rotatably connected with the housing, and the driving member is used for driving the rotating shaft to rotate.
9. A super large special type breaking and crushing method, characterized in that the super large special type breaking and crushing machine as claimed in claim 3 is used, the breaking and crushing method comprises the following steps, the materials are sent into a double-gear roller structure for coarse crushing; after the material is distributed by the first-stage distribution mechanism and the second-stage distribution mechanism, the coarsely crushed material is uniformly guided to the left rotor and the right rotor, and the coarsely crushed material enters a gap between the left rotor and the impact device and a gap between the right rotor and the impact device for fine crushing.
CN202010745493.7A 2020-07-29 2020-07-29 Super-large special type pulling-breaking fine crusher and fine crushing method thereof Active CN111871575B (en)

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CN116921004B (en) * 2023-09-15 2023-11-28 云南凯瑞特工程机械设备有限公司 Single-motor gear transmission double-internal-drive sand making system

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CN102631966A (en) * 2012-04-25 2012-08-15 扬州伟江机械有限公司 Reversible multiple-back-impact combined type fine crusher
CN103567013A (en) * 2013-11-15 2014-02-12 四川皇龙智能破碎技术股份有限公司 Compound crusher
CN103586106A (en) * 2013-11-15 2014-02-19 中煤润邦机械装备股份有限公司 Large efficient screening-type double-toothed roll crusher provided with distribution device
CN208554358U (en) * 2017-12-26 2019-03-01 铜陵万华禾香板业有限公司 A kind of pulverizer

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CN102631966A (en) * 2012-04-25 2012-08-15 扬州伟江机械有限公司 Reversible multiple-back-impact combined type fine crusher
CN103567013A (en) * 2013-11-15 2014-02-12 四川皇龙智能破碎技术股份有限公司 Compound crusher
CN103586106A (en) * 2013-11-15 2014-02-19 中煤润邦机械装备股份有限公司 Large efficient screening-type double-toothed roll crusher provided with distribution device
CN208554358U (en) * 2017-12-26 2019-03-01 铜陵万华禾香板业有限公司 A kind of pulverizer

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