阅读说明：本技术 一种无尘化煤炭粉碎筛选系统及方法 (Dustless coal crushing and screening system and method ) 是由 马捷 黄旭东 刘晨睿 周宇 李冲 王�义 单玉皓 于 2020-03-30 设计创作，主要内容包括：本发明公开了一种无尘化煤炭粉碎筛选系统及方法,其中所述跳动器包括：驱动轴,做功装置,储气囊,偏心轮,防撞器,水平旋转摆,旋转轴,震动传递夹,惯性轮,水平轴；位于上部的储气囊,一端与外部气泵连接,另一端通过做功装置与驱动轴连接,高压气体通过做功装置带动驱动轴旋转；驱动轴驱动连接下部一侧的水平轴,水平轴与偏心轮、惯性轮、震动传递夹、旋转轴连接,其中偏心轮沿着水平轴不同轴转动；惯性轮质量巨大,用于产生旋转惯性,同时惯性轮通过传动机构保证在水平轴振动中其保持不位移；震动传递夹与震动槽固定连接。本发明所述的一种无尘化煤炭粉碎筛选系统,其结构新颖合理,工作效率高,适用范围广阔。(The invention discloses a dustless coal crushing and screening system and a method, wherein a jumper comprises: the device comprises a driving shaft, an acting device, an air storage bag, an eccentric wheel, an anti-collision device, a horizontal rotary pendulum, a rotary shaft, a vibration transmission clamp, an inertia wheel and a horizontal shaft; one end of the air storage bag positioned at the upper part is connected with an external air pump, the other end of the air storage bag is connected with the driving shaft through a working device, and high-pressure air drives the driving shaft to rotate through the working device; the driving shaft is in driving connection with a horizontal shaft on one side of the lower part, and the horizontal shaft is connected with an eccentric wheel, an inertia wheel, a vibration transmission clamp and a rotating shaft, wherein the eccentric wheel rotates along the horizontal shaft in a non-coaxial manner; the inertia wheel has huge mass and is used for generating rotation inertia, and meanwhile, the inertia wheel is ensured not to displace in horizontal shaft vibration through a transmission mechanism; the vibration transmission clamp is fixedly connected with the vibration groove. The dustless coal crushing and screening system is novel and reasonable in structure, high in working efficiency and wide in application range.)

1. A dustless coal pulverizing and screening system comprising: the device comprises a raw material inlet (1), a crushing box body (2), a grading box body (3), a discharging transmission (4), primary crushing (5), a transition bin (6), secondary crushing (7), an air outlet (714), a particle size tester (9) and a control center (10); the device is characterized in that a raw material inlet (1) is arranged at the upper part of the crushing box body (2), primary crushing (5) is arranged in the crushing box body (2), and large materials are crushed into small materials by the primary crushing (5); a transition bin (6) is arranged at the lower part of the primary crushing (5), and a secondary crushing (7) is arranged at the lower part of the transition bin (6); the crushing box body (2) is communicated with the grading box body (3), and a grading sieve is arranged in the grading box body (3); a discharge conveying device (4) is arranged on one side of the grading box body (3), and a control center (10) is arranged on the other side; the particle size tester (9) is connected with the control center (10) in a wire control way;

the grading box body (3) is provided with a vibration bed (31);

the shaking bed (31) is provided with a jumping device (313);

the jumper (313) comprises: a driving shaft (3131), a work-doing device (3132), an air storage bag (3133), an eccentric wheel (3134), an anti-collision device (3135), a horizontal rotary pendulum (3136), a rotating shaft (3137), a vibration transmission clamp (3138), an inertia wheel (3139) and a horizontal shaft (3130); one end of the air storage bag (3133) positioned at the upper part is connected with an external air pump, the other end of the air storage bag is connected with the driving shaft (3131) through a work applying device (3132), and high-pressure air drives the driving shaft (3131) to rotate through the work applying device (3132); a driving shaft (3131) is in driving connection with a horizontal shaft (3130) at one side of the lower part, the horizontal shaft (3130) is connected with an eccentric wheel (3134), an inertia wheel (3139), a vibration transmission clamp (3138) and a rotating shaft (3137), wherein the eccentric wheel (3134) does not rotate along the horizontal shaft (3130); the inertial wheel (3139) is massive for generating rotational inertia, while the inertial wheel (3139) is guaranteed by the transmission mechanism to remain unmovable in the oscillation of the horizontal axis (3130); the vibration transmission clamp (3138) is fixedly connected with the vibration groove; a horizontal rotary pendulum (3136) is horizontally arranged at the lower part of the rotating shaft (3137), the horizontal rotary pendulum (3136) is simultaneously connected with the vibrating ball (318), and the driving shaft (3131) drives the rotating shaft (3137) and the horizontal rotary pendulum (3136) to drive the vibrating ball (318) to horizontally vibrate and rotate.

2. A dustless coal pulverizing screening system according to claim 1, characterized in that the classification bin (3) comprises: the device comprises a vibration bed (31), a coal powder distributor (32), a coal powder dredging machine (33), a filter screen (34), a powder collection (35), a coal powder air passage (36), a discharge conveying (4) and an air outlet (714);

the coal dust enters from the coal dust air flue (36) positioned at the upper part, and the coal dust distributor (32) is arranged at the lower part of the coal dust air flue, so that the coal dust is uniformly distributed; a vibration bed (31) is arranged at the lower part of the coal dust collector and is used for receiving the settled coal dust, and the vibration bed (31) is mechanically vibrated and has a certain inclination angle; the left side of the wind-driven generator is provided with a coal dust dredging machine (33) which only allows coal dust to pass through and blocks wind from passing through; a discharge conveyer (4) is arranged on one side of the coal powder dredging machine (33), an air outlet (714) is arranged on the other side of the vibration bed (31), and a filter sieve (34) and a powder collector (35) are arranged on the lower part of the vibration bed (31).

3. A dustless coal pulverizing screening system according to claim 2, characterized in that the vibrating bed (31) comprises: the device comprises a receiving disc (311), a push plate (312), a jumper (313), a lifter (314), a receiving chamber (315), a pushing power (316), a pusher (317) and a vibrating ball (318);

the receiving disc (311) positioned at the upper part is rectangular and can move up and down, the upper part is large and open, and the lower part is small and communicated with the receiving chamber (315) in an equal-diameter way; the square barrel-shaped receiving chamber (315) can expand up and down; the four lifters (314) drive the receiving disc (311) to ascend or descend and drive the receiving chamber (315) to expand upwards or contract downwards; a pusher (317) is arranged in the lower channel of the receiving disc (311) and is used for pushing the solid matter downwards; the pushing power (316) provides power for the operation of the pusher (317); a vibration groove is arranged at the lower part of the receiving chamber (315), and a push plate (312) is arranged at one side of the vibration groove to push the solid matters out of the vibration groove; the bottom of the vibration groove is provided with a plurality of vibration balls (318) which are mechanically connected with the jump device (313) to enable the jump device to rotate and vibrate in situ; the vibration groove has a certain inclination angle and is mechanically connected with the jump device (313) to drive the jump device to vibrate.

4. A dustless coal pulverizing screening system as claimed in claim 3, wherein the push plate (312) comprises: a housing (3121), a plate support (3122), a plate frame (3123), a frame adjustment (3124), an expansion plate (3125), a plate hinge (3126), a crankshaft (3127);

the upper surface of the upper shell cover (3121) is provided with two sliding grooves, and two vertical arms of the plate support (3122) horizontally slide in the sliding grooves; one side of the housing cover (3121) is provided with a plate hinge (3126), the side of the housing cover (3121) is turned over for equipment maintenance, and the other side is provided with a pulverized coal discharge gap; the lower part of the plate support (3122) is provided with a crankshaft (3127) which is in driving connection with the plate support; the left side of the plate support (3122) is connected with an upright expansion plate (3125), the plate surface of the plate support can be expanded and made of high-strength materials, the periphery of the expansion plate (3125) is connected with a plate frame (3123), and the rotation adjustment of the frame adjustment (3124) enables the plate frame (3123) to drive the expansion plate (3125) to expand or contract.

5. A dustless coal pulverizing screening system as claimed in claim 4, characterized in that said air outlet (714) round through the inside comprises: a secondary settling chamber (7141), a coil type heating pipe (7142), a top convex bolt column (7143), a slider (7144), a pulling thin steel cable (7145), a concave groove (7146), a toggle rod (7147) and a spray pipe (7148);

a slider (7144) positioned on one side slides in a circular through hole of an air outlet (714), one end of the slider (7144) is connected with a driving device, the other end of the slider (7144) is connected with a secondary settling chamber (7141) through the butt joint of a top convex stud (7143) and a concave groove (7146), the secondary settling chamber (7141) is positioned at the other end in the circular through hole of the air outlet (714), wherein the top convex stud (7143) is in butt joint with the concave groove (7146) through the tension of a pulling thin steel cable (7145), the slider (7144) and the two ends of the secondary settling chamber (7141) are through, a coil type heating pipe (7142) is arranged on the periphery of the secondary settling chamber (7141) and used for heating the secondary settling chamber (7141) to facilitate the action of dust settling agent and promote the dust settling, four L-shaped stirring rods (7147) which are equidistant are arranged inside the secondary settling chamber (7141), the rotation driving of the stirring rods (7147) is driven by the slider (7144), the equivalent position is also arranged inside the secondary settling chamber (7141) and four equidistant straight spraying pipes (48) are arranged inside the.

6. A dustless coal pulverizing screening system as claimed in claim 5, wherein the recessed slot (7146) comprises: a guide riser (71461), a locking disk (71462), a bayonet guide (71463), a pin drive (71464), a bayonet (71465);

three guiding vertical pipes (71461) positioned at the upper part are arranged in a regular triangle equidistant way, have small upper openings and large lower openings and are fixed on a locking disc (71462); the central hole of the locking disc (71462) is larger than the diameter of the top convex stud (7143); six clamping pins (71465) are radially and uniformly distributed on the periphery of the locking disc (71462), the locking disc and the locking disc slide, a pin drive (71464) is arranged at the lower part of the locking disc, and the pin drive (71464) pushes the clamping pins (71465) to move radially; a bayonet guide (71463) is arranged at the lower part of the bayonet (71465) and guides the bayonet (71465) to slide in the radial direction.

7. A dustless coal crushing and screening system is characterized in that the working method of the system comprises the following steps:

step 1: raw materials enter a crushing box body (2) from a raw material inlet (1), are crushed into small blocks through a primary crushing step (5), are crushed into powder through a secondary crushing step (7), fall into a grading box body (3) for grading, finished products are output from a discharging conveyor (4), other products are output from the bottom, and gas is output from an air outlet (714); the particle size tester (9) monitors the change of the crushed finished product in real time and feeds the change back to the control center (10);

step 2: during the operation of the grading box body (3), coal dust enters from the coal dust air passage (36), the coal dust uniformly descends under the action of the coal dust distributor (32), required finished coal dust is received by the vibration bed (31), and the coal dust is conveyed to the outside through the coal dust dredging machine (33) and the discharging conveyor (4); filtered air is discharged through an air outlet (714); other coal dust continuously falls down and is filtered by a filter sieve (34), and finally is received by a powder collection (35);

and 3, step 3: during the operation of the vibrating bed (31), the solid matters are received by the receiving disc (311) with a large opening and enter the receiving chamber (315) through the pushing of the pusher (317); the lifter (314) moves the butt joint disc (311) up and down to achieve the best receiving effect, and meanwhile, the lifter (314) expands or contracts the square barrel of the receiving chamber (315) up and down to achieve the best storage effect; the solid matter enters a vibration groove, the vibration groove and a vibration ball (318) vibrate continuously under the action of a bouncing device (313), and the solid matter enters the next procedure along the inclination angle of the vibration groove; meanwhile, the solid matter is pushed out of the vibration groove by a push plate (312) to enter the next working procedure;

and 4, step 4: when the push plate (312) works, the crankshaft (3127) converts horizontal motion into rotary motion, and drives the plate support (3122) to move left and right through the engagement between the gear and the rack attached to the plate support (3122), and as the expansion plate (3125) can be scaled, the plate frame (3123) fixed around the expansion plate (3125) can be driven by the frame adjustment (3124) to promote the expansion plate (3125) to scale;

and 5, step 5: in the operation of the jump actuator (313), high-pressure gas is stored in a gas storage bag (3133), the high-pressure gas drives a driving shaft (3131) and a horizontal shaft (3130) to rotate through a work applying device (3132), the horizontal shaft (3130) drives an eccentric wheel (3134) and an inertia wheel (3139) to rotate, and the eccentric wheel (3134) drives a vibration transmission clamp (3138) and a vibration groove to vibrate through the horizontal shaft (3130) because the eccentric wheel (3134) and the horizontal shaft (3130) are not symmetrical in shaft center of the rotation shaft and the horizontal shaft (3130) is connected with the vibration transmission clamp (3138); the inertial wheel (3139) of the massive mass generates a stable rotational inertia; in the lower part, the driving shaft (3131) drives the rotating shaft (3137) and the horizontal rotating pendulum (3136) to drive the vibrating ball (318) to horizontally vibrate and rotate;

and 6, step 6: in the operation of the air outlet (714), the traction of pulling the thin steel cable (7145) causes the slider (7144) to approach the secondary settling chamber (7141), and the matching of the poke-turn bar (7147) and the equivalent part of the slider (7144) is realized through the butt joint of the top convex stud (7143) and the concave groove (7146); the slider (7144) rotates to drive the poking rod (7147) to rotate through the equivalent part, so that the dust-settling medicament and the dust are mixed with each other, and the dust is promoted to settle under the heating action of the coil type heating tube (7142);

and 7, step 7: during operation of the concave groove (7146), the top convex stud (7143) falls down and enters the hollow of the locking disc (71462) under the guidance of the guide vertical pipe (71461), and the pin driving device (71464) drives the six clamping pins (71465) to move towards the center along the clamping pin guiding device (71463) to lock the top convex stud (7143).

Technical Field

The invention belongs to the field of coal treatment of pulverized coal, and particularly relates to a dustless coal crushing and screening system and method.

Background

Under the condition of the prior art, the technology of the dust removing equipment is not developed and matured, and the technical scheme is mainly characterized in that a jump device mechanism is not arranged in the prior art, or the mechanism is not provided with a driving shaft, an acting device, an air storage bag, an eccentric wheel, an anti-collision device, a horizontal rotary pendulum, a rotating shaft, a vibration transmission clamp, an inertia wheel and a horizontal shaft mechanism. Due to lack of or immaturity of the mechanism, the defects of old process, high treatment cost, low working efficiency, long process flow, complex control, large occupied area and the like are caused.

Disclosure of Invention

In order to solve the above technical problems, the present invention provides a dustless coal pulverizing and screening system, comprising: the device comprises a raw material inlet 1, a crushing box body 2, a grading box body 3, a discharging conveyer 4, a primary crushing 5, a transition bin 6, a secondary crushing 7, an air outlet 714, a particle size tester 9 and a control center 10; the device is characterized in that a raw material inlet 1 is arranged at the upper part of a crushing box body 2, primary crushing 5 is arranged inside the crushing box body 2, and the primary crushing 5 crushes large materials into small materials; a transition bin 6 is arranged at the lower part of the primary crushing 5, and a secondary crushing 7 is arranged at the lower part of the transition bin 6; the crushing box body 2 and the grading box body 3 are communicated with each other, and a grading sieve is arranged in the grading box body 3; a discharge conveying device 4 is arranged on one side of the grading box body 3, and a control center 10 is arranged on the other side; the particle size measuring instrument 9 is connected with a control center 10 in a wire control way.

Further, the classification box 3 includes: the device comprises a vibration bed 31, a coal powder distributor 32, a coal powder dredging machine 33, a filter sieve 34, a powder collecting 35, a coal powder air passage 36, a discharge conveying 4 and an air outlet 714; the coal dust enters from the coal dust air flue 36 positioned at the upper part, and the coal dust distributor 32 is arranged at the lower part of the coal dust air flue, so that the coal dust is uniformly distributed; a vibration bed 31 is arranged at the lower part of the coal powder sedimentation device and used for receiving the sedimentation coal powder, and the vibration bed 31 vibrates mechanically and has a certain inclination angle; the left side of the wind-driven generator is provided with a coal dust dredging machine 33 which only allows coal dust to pass and blocks wind from passing; the coal powder conveyor 33 is provided with a discharge conveyor 4 at one side, the vibrating bed 31 is provided with an air outlet 714 at the other side, and the vibrating bed 31 is provided with a filter screen 34 and a powder collector 35 at the lower part.

Further, the seismic bed 31 includes: a flange 311, a push plate 312, a jumper 313, a lifter 314, a receiving chamber 315, a pushing power 316, a pusher 317, and a vibration ball 318; the receiving plate 311 on the upper part is rectangular and can move up and down, the upper part is large and open, and the lower part is small and is connected with and communicated with the receiving chamber 315 in an equal diameter way; the receiving chamber 315 is square and barrel-shaped and can be expanded up and down; the four lifters 314 drive the receiving tray 311 to ascend or descend, and drive the receiving chamber 315 to expand upwards or contract downwards; a pusher 317 is arranged in the lower channel of the receiving disc 311 and used for pushing the solid matter downwards; the pushing power 316 provides power for the operation of the pusher 317; a vibration groove is arranged at the lower part of the receiving chamber 315, and a push plate 312 is arranged at one side of the vibration groove to push the solid matters out of the vibration groove; the bottom of the vibration groove is provided with a plurality of vibration balls 318 which are mechanically connected with the jumping device 313 to enable the jumping device to rotate and vibrate in situ; the vibration groove has a certain inclination angle and is mechanically connected with the jumping device 313 to drive the jumping device to vibrate.

Further, the push plate 312 includes: a housing 3121, a plate support 3122, a plate frame 3123, a frame adjustment 3124, an expansion plate 3125, a plate hinge 3126, a crankshaft 3127; the upper surface of the upper housing 3121 is provided with two sliding grooves in which two vertical arms of the plate support 3122 slide horizontally; a plate hinge 3126 is arranged on one side of the housing 3121, the side of the housing 3121 is turned over for equipment maintenance, and a pulverized coal discharge gap is arranged on the other side; the lower part of the plate support 3122 is provided with a crankshaft 3127 which are in driving connection; the left side of the plate support 3122 is connected with an upright expansion plate 3125, the plate surface of the plate support is expandable and made of high-strength material, the periphery of the expansion plate 3125 is connected with a plate frame 3123, and the rotation adjustment of the frame adjustment 3124 enables the plate frame 3123 to drive the expansion plate 3125 to expand or contract.

Further, the jumper 313 includes: a driving shaft 3131, a work applying device 3132, an air storage bag 3133, an eccentric wheel 3134, a bumper 3135, a horizontal rotary pendulum 3136, a rotary shaft 3137, a vibration transmission clamp 3138, an inertia wheel 3139, and a horizontal shaft 3130; an air storage pocket 3133 at the upper portion has one end connected to an external air pump and the other end connected to a driving shaft 3131 through a work application device 3132, and the high-pressure air drives the driving shaft 3131 to rotate through the work application device 3132; a driving shaft 3131 drivingly connected to a horizontal shaft 3130 on one side of the lower portion, the horizontal shaft 3130 being connected to a cam 3134, a flywheel 3139, a vibration transmission clamp 3138, and a rotation shaft 3137, wherein the cam 3134 is not rotated along the horizontal shaft 3130; flywheel 3139 is massive, for generating rotational inertia, while flywheel 3139 ensures, through a transmission, that it remains unmovable in the oscillations of horizontal axis 3130; the vibration transmission clamp 3138 is fixedly connected with the vibration groove; a horizontal rotation pendulum 3136 is horizontally disposed below the rotation shaft 3137, the horizontal rotation pendulum 3136 is connected to the vibration ball 318, and the driving shaft 3131 drives the rotation shaft 3137 and the horizontal rotation pendulum 3136 to make the vibration ball 318 horizontally vibrate and rotate.

Further, the air outlet 714 circular through interior comprises a secondary settling chamber 7141, a coil type heating tube 7142, a top convex stud 7143, a slider 7144, a pulling thin steel cable 7145, a concave groove 7146, a poking rod 7147 and a spray pipe 7148, the slider 7144 on one side slides in the air outlet 714 circular through, one end of the slider 7144 is connected with a driving device, the other end of the slider 7144 is connected with the secondary settling chamber 7141 through the butt joint of the top convex stud 7143 and the concave groove 7146, the secondary settling chamber 7141 is arranged at the other end of the air outlet 714 circular through, wherein the pulling of the pulling thin steel cable 7145 causes the top convex stud 7143 to be in butt joint with the concave groove 7146, the slider 7144 and the secondary settling chamber 7141 are through, the coil type heating tube 7142 is arranged on the periphery of the secondary settling chamber 7141 and is used for heating the secondary settling chamber 7141 to facilitate dust settling and dust settling, L-shaped sliders are arranged inside the secondary settling chamber 7141, the poking rod 7147 is arranged at equal intervals, and the rotating driving rods 7147 are arranged in the same direction and spraying the slider 7144 and spraying tubes are arranged in the same direction.

Further, the concave groove 7146 includes: guide riser 71461, locking disk 71462, bayonet guide 71463, pin drive 71464, bayonet 71465; the three guide vertical pipes 71461 positioned at the upper part are regularly arranged in a triangular equidistant way, have small upper openings and large lower openings and are fixed on the locking disc 71462; the central hole of the locking disc 71462 is larger than the diameter of the top convex bolt 7143; six clamping pins 71465 are radially and uniformly distributed on the periphery of the locking disc 71462, the six clamping pins 71465 slide on the locking disc 71462, a pin driver 71464 is arranged at the lower part of the locking disc, and the pin driver 71464 pushes the clamping pins 71465 to move radially; a bayonet guide 71463 is provided at the lower part of the bayonet 71465 and guides the bayonet 71465 to slide radially.

Further, the working method of the system comprises the following steps:

step 1: raw materials enter a crushing box body 2 from a raw material inlet 1, are crushed into small blocks through primary crushing 5, are crushed into powder through secondary crushing 7, fall into a grading box body 3 and are screened, finished products are output from a discharge conveyor 4, other products are output from the bottom, and gas is output from an air outlet 714; the particle size analyzer 9 monitors the change of the crushed finished product in real time and feeds the change back to the control center 10.

Step 2: during the operation of the grading box body 3, coal powder enters from the coal powder air passage 36, the coal powder uniformly descends under the action of the coal powder distributor 32, required finished coal powder is received by the vibration bed 31, and the coal powder is conveyed to the outside through the coal powder general machine 33 and the discharging conveyor 4; filtered air is discharged through air outlet 714; the other coal fines continue to fall down and are filtered by the filter screen 34 and eventually received by the fines collection 35.

And 3, step 3: during the operation of the vibrating bed 31, the solid matter is received by the receiving tray 311 with a large opening, and enters the receiving chamber 315 through the pushing of the pusher 317; the lifter 314 moves the docking tray 311 up and down to achieve the best receiving effect, and meanwhile, the lifter 314 expands or contracts the square barrel of the receiving chamber 315 up and down to achieve the best storage effect; the solid matter enters the vibration groove, the vibration groove and the vibration ball 318 continuously vibrate under the action of the jumping device 313, and the solid matter enters the next procedure along the inclination angle of the vibration groove; meanwhile, the push plate 312 pushes the solid matter out of the vibration groove to enter the next process.

And 4, step 4: during the operation of the push plate 312, the crankshaft 3127 converts the horizontal motion into the rotational motion, and drives the plate support 3122 to move left and right through the engagement between the gear and the rack attached to the plate support 3122, and the frame 3123 fixed around the expansion plate 3125 is driven by the frame adjustment 3124 to zoom the expansion plate 3125.

And 5, step 5: during the operation of the pulsator 313, high pressure gas is stored in the gas storage bag 3133, the high pressure gas drives the driving shaft 3131 and the horizontal shaft 3130 to rotate through the acting device 3132, the horizontal shaft 3130 drives the eccentric wheel 3134 and the inertia wheel 3139 to rotate, and the eccentric wheel 3134 drives the vibration transmission clamp 3138 and the vibration groove to vibrate through the horizontal shaft 3130 because the eccentric wheel 3134 is not symmetrical to the horizontal shaft 3130 in rotating shaft axis and the horizontal shaft 3130 is connected with the vibration transmission clamp 3138; the massive inertia wheel 3139 generates a stable rotational inertia; in the lower portion, the driving shaft 3131 drives the rotating shaft 3137 and the horizontal rotating pendulum 3136 to make the vibration ball 318 vibrate and rotate horizontally.

And 6, step 6: in the operation of the air outlet 714, the traction of pulling the guy wire 7145 causes the slider 7144 to approach the secondary settling chamber 7141, and the matching of the toggle bar 7147 and the equivalent part of the slider 7144 is realized through the butt joint of the top convex stud 7143 and the concave groove 7146; the slider 7144 rotates to drive the poke rod 7147 to rotate through the equivalent part, so that the dust settling medicament and the dust are mixed with each other, and the dust settling is promoted under the heating action of the coil heating tube 7142;

and 7, step 7: in operation of the recessed channel 7146, the top stud post 7143 drops down into the cavity of the locking disk 71462 guided by the guide riser 71461 and the pin driver 71464 drives the six pins 71465 to move centrally along the pin guides 71463 to lock the top stud post 7143.

The invention discloses a dustless coal crushing and screening system and a method thereof, which have the advantages that: the system has reasonable and compact structural design, high integration level and high collection rate.

Drawings

FIG. 1 is a diagram of a dustless coal pulverizing and screening system of the present invention.

Fig. 2 is a view of a classification tank 3 according to the present invention.

Figure 3 is a diagram of a seismic bed 31 of the present invention.

Figure 4 is a drawing of a pusher plate 312 according to the present invention.

Fig. 5 is a diagram of the jumper 313 of the present invention.

Fig. 6 is a view of the air outlet 714 of the present invention.

Fig. 7 is a view of a recessed groove 7146 of the present invention.

Detailed Description

The invention provides a dustless coal crushing and screening system which is further explained by combining the attached drawings and an example.