CN210928700U - Crusher for biomass power plant - Google Patents

Abstract

The utility model discloses a crusher for biomass power plants, which comprises a frame, wherein a disc-shaped hopper is arranged on the frame, two knife rolls are arranged on the frame side by side, and the two knife rolls are arranged at the lower end of the disc-shaped hopper in a staggered manner; a screen frame is arranged at the bottom of the knife roll on the frame; a conveyor belt is arranged at the bottom of the screen frame; a plurality of mounting seats are arranged on the knife roll at intervals, the cutter penetrates through the mounting seats along the tangential direction of rotation of the knife roll, and the cutter is fixed on the mounting seats through bolts; when the disc-shaped hopper rotates, trees can be pushed to the two knife rolls in a staggered manner, the knife rolls can cut the trees conveniently, and the efficiency is high; the mounting seat and the cutter on the knife roll protrude out of the surface of the knife roll, so that the cutting effect on trees is good, the blockage caused by broken wood is avoided, and the normal use is kept; the cutter runs through the setting in the mount pad, and the moment of torsion that cutter and mount pad received is less, and is not fragile, even damage also convenient dismantlement, labour saving and time saving.

Description

Crusher for biomass power plant

Technical Field

The utility model relates to a rubbing crusher technical field especially relates to a rubbing crusher for biomass power plant.

Background

The pulverizer is a machine for pulverizing large-size solid raw materials into required sizes, massive trees or straws are cut and pulverized by the pulverizer in a biomass power plant and can be incinerated for power generation after being processed into wood chippings, Chinese patent (publication number: CN205128146U) of the applicant's prior application discloses a movable biomass pulverizing machine which comprises a vehicle body, a turntable pulverizing system and a chippings transportation system are arranged on the vehicle body, and the turntable pulverizing system comprises a turntable base, a disk hopper and a rotary driving mechanism; the turntable base is arranged on the vehicle body, and a disc-shaped hopper is horizontally and rotatably arranged on the turntable base; the rotary driving mechanism is arranged on the turntable base and used for driving the disc-shaped hopper to rotate, trees or straws in the disc-shaped hopper can be stirred, and the trees or the straws can be conveniently cut; in addition, the cutter on the knife roll of the crushing machine is in a long plate shape, the cutting groove is formed in the bottom of the cutter, when trees or straws are cut, the wood crushing rod is easily blocked in the cutter and the cutting groove, the normal use of the cutter is affected, the cutter is only fixed on the knife roll at the rear side, the upturning torque of the cutter is large during cutting, the connecting part is easy to break, the cutter is not easy to replace after breaking, and great troubles are brought to wood crushing work.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to avoid prior art's weak point, provide a rubbing crusher is used in living beings power plant to effectively solve the weak point that exists among the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a pulverizer for a biomass power plant comprises a rack, wherein a disk-shaped hopper and a rotary driving mechanism for driving the disk-shaped hopper to rotate are arranged on the rack, two cutter rollers and a first driving device for driving the cutter rollers to rotate are arranged on the rack side by side, the two cutter rollers are arranged at the lower end of the disk-shaped hopper in a staggered manner, the bottom of the disk-shaped hopper is matched with the two cutter rollers and is provided with a feed opening, and the cutter rollers extend upwards from the feed opening to the disk-shaped hopper; a screen frame is arranged at the bottom of the knife roll on the frame, and a plurality of openings for allowing crushed wood to fall down are formed in the screen frame; a conveyor belt is arranged at the bottom of the screen frame;

a plurality of mounting seats are arranged on the knife roll at intervals, and the cutter penetrates through the mounting seats along the rotation tangential direction of the knife roll and is fixed on the mounting seats through bolts.

Further, the two knife rolls rotate in opposite directions.

Furthermore, two striker plates are arranged between the screen frame and the conveyor belt in a retractable manner, and a pulling plate mechanism for controlling the striker plates to open and close is arranged on the frame.

Further, the pulling plate mechanism comprises a pulling plate frame, the upper portions of the two material blocking plates are rotatably provided with winding shafts respectively, pull ropes are wound on the winding shafts, the lower ends of the pull ropes are fixed on the material blocking plates, a second driving device for driving the two winding shafts to rotate reversely is arranged on the pulling plate frame, and the second driving device is connected with the two winding shafts through gears in a transmission mode.

The above technical scheme of the utility model following beneficial effect has: the utility model arranges two knife rolls which rotate in opposite directions in a staggered way on the disk-shaped hopper, when the disk-shaped hopper rotates, the tree or straw can be pushed to the two knife rolls in a staggered way, the tree or straw can be conveniently cut by the knife rolls, and the efficiency is higher; the mounting seat and the cutter on the knife roll protrude out of the surface of the knife roll, so that the cutting effect on trees or straws is good, the blockage of broken wood rods is avoided, and the normal use is kept; the cutter runs through the setting in the mount pad, and the tool bit of cutter is close to mount pad department, and the moment of torsion that cutter and mount pad received is less, and is not fragile, even damage also convenient dismantlement, labour saving and time saving.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is a perspective view of the inside of the frame according to the embodiment of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is an enlarged view at B in FIG. 2;

FIG. 5 is a perspective view of the bottom of the rack according to the embodiment of the present invention;

fig. 6 is a cross-sectional view of the plate pulling mechanism according to the embodiment of the present invention.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 6, the pulverizer for a biomass power plant according to the embodiment includes a frame 1, a disk-shaped hopper 2 and a rotary driving mechanism 3 for driving the disk-shaped hopper 2 to rotate are arranged on the frame 1, two knife rolls 4 and a first driving device 5 for driving the knife rolls 4 to rotate are arranged on the frame 1 side by side, the two knife rolls 4 are arranged at the lower end of the disk-shaped hopper 2 in a staggered manner, the two knife rolls 4 are arranged symmetrically along the axis of the disk-shaped hopper 2, the first driving device 5 drives the two knife rolls 4 to rotate oppositely, the bottom of the disk-shaped hopper 2 is matched with the two knife rolls 4 and is provided with a feeding opening 2a, and the knife rolls 4 extend upwards from the feeding opening 2a to the disk-shaped hopper 2; when the disc-shaped hopper 2 rotates, trees are stirred, the trees move to the two knife rolls 4 on two sides of the axis of the disc-shaped hopper 2 respectively, and the two knife rolls 4 can cut the trees or straws simultaneously, so that the efficiency is improved; preferably, the first driving means 5 is a motor;

a screen frame 6 is arranged at the bottom of the knife roll 4 on the frame 1, and a plurality of openings for the wood chopping rods to fall down are arranged on the screen frame 6; the bottom of the sieve frame 6 is provided with a conveyor belt 7; after the knife roller 4 cuts the wood chippings, the wood chippings fall down from the feed opening 2a, and then are further cut by the knife roller 4, and the wood chippings can fall down when the wood chippings are smaller than the opening caliber of the sieve frame 6 and are conveyed to an incineration place for incineration by the conveyor belt 7;

the cutter roll 4 is provided with a plurality of mounting seats 41 at intervals, the cutter 42 penetrates through the mounting seats 41 along the rotation tangential direction of the cutter roll 4 and is fixed on the mounting seats 41 through bolts, the cutter 42 and the mounting seats 41 protrude out of the surface of the cutter roll 4, when the cutter roll 4 rotates, the cutter 42 impacts and grinds trees or straws, the efficiency is higher than that of cutting type wood smashing rods, the cutter 42 is not easy to become blunt, the cutter head of the cutter 42 is close to the mounting seats 41, the torque borne by the cutter 42 and the mounting seats 41 is small, the cutter 42 is not easy to damage, even if the cutter 42 is damaged, the disassembly is convenient, and time and labor are saved; preferably, the front end surface of the cutter 42 is in a structure with hard particle convex points, so that the friction force can be increased, and the grinding effect can be improved;

preferably, two material blocking plates 8 are arranged between the screen frame 6 and the conveyor belt 7 in a foldable manner, a pulling plate mechanism 9 for controlling the material blocking plates 8 to be opened and closed is arranged on the frame 1, the material blocking plates 8 can control the blanking clearance of the wood chippings, namely the scattering degree of the wood chippings falling onto the conveyor belt 7, so that the wood chippings are prevented from falling onto the edge of the conveyor belt 7 and falling in the moving process to influence the cleanliness;

preferably, the pulling plate mechanism 9 includes a pulling plate frame 91, the pulling plate frame 91 is respectively rotatably provided with a winding shaft 92 on the upper portions of the two striker plates 8, a pulling rope 93 is wound on the winding shaft 92, the lower end of the pulling rope 93 is fixed on the striker plates 8, the winding shaft 92 rotates to wind or extend the pulling rope 93, the pulling rope 93 can drive the striker plates 8 to turn upwards or downwards, the pulling plate frame 91 is provided with a second driving device 94 for driving the two winding shafts 92 to rotate in opposite directions, the second driving device 94 is connected with the two winding shafts 92 through a gear 95 for transmission, the two winding shafts 92 are both provided with transmission gears, an even number of gears 95 are arranged between the two transmission gears so that the two transmission gears can rotate in opposite directions, the second driving device 94 can drive either the gear 95 or the transmission gear to rotate to drive the whole striker plates to rotate, thereby controlling the striker plates 8 to turn upwards or downwards, preferably, the second drive 94 is a servo motor.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (4)

1. The utility model provides a rubbing crusher for biomass power plant, includes the frame, is provided with disk hopper and drive disk hopper pivoted rotary driving mechanism in the frame, its characterized in that: the machine frame is provided with two cutter rollers and a first driving device for driving the cutter rollers to rotate side by side, the two cutter rollers are arranged at the lower end of the disc-shaped hopper in a staggered manner, the bottom of the disc-shaped hopper is matched with the two cutter rollers and is provided with a feed opening, and the cutter rollers extend upwards from the feed opening to the disc-shaped hopper; a screen frame is arranged at the bottom of the knife roll on the frame, and a plurality of openings for allowing crushed wood to fall down are formed in the screen frame; a conveyor belt is arranged at the bottom of the screen frame;

the cutter is characterized in that a plurality of mounting seats are arranged on the cutter roller at intervals, cutters penetrate through the mounting seats along the rotation tangential direction of the cutter roller, and the cutters are fixed on the mounting seats through bolts.

2. The pulverizer for a biomass power plant according to claim 1, characterized in that: the two knife rolls rotate in opposite directions.

3. The pulverizer for a biomass power plant according to claim 1, characterized in that: two striker plates are arranged between the screen frame and the conveyor belt in an openable mode, and a pulling plate mechanism for controlling the striker plates to open and close is arranged on the frame.

4. The pulverizer for a biomass power plant according to claim 3, characterized in that: the pulling plate mechanism comprises a pulling plate frame, the upper portions of the two material blocking plates are rotatably provided with winding shafts respectively, pull ropes are wound on the winding shafts, the lower ends of the pull ropes are fixed on the material blocking plates, the pulling plate frame is provided with a second driving device for driving the two winding shafts to rotate reversely, and the second driving device is connected with the two winding shafts through gears for transmission.

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