KR20010104138A - screen open apparatus equipped a dust collector function - Google Patents

Abstract

The present invention relates to a screen opening device having a dust collecting function of the coke screening screen feeder, the cylinder block 13 is configured in a form in which the cylinder 10 seal is divided into upper and lower portions, the upper cylinder 10 seal The upper end portion of the piston 15 having an air groove and an air hole is inserted into the lower cylinder 10. In the lower cylinder 10 seal, the lower end portion of the piston 15 is coalesced by the coil spring 14, and the configured cylinder 10 is A hydraulic passage and an air passage are formed in the hydraulic pipe 5 and the air pipe 6, and the other ends of the pipes 5 and 6 have shaft air holes 8 provided in the hollow shaft 4. And a shaft forming a flow path with the shaft hydraulic hole 9, respectively, and the hollow shaft 4 is fixed and installed in a structure in which the hollow shaft 4 is movable by the bearing 7 at the bottom of each row of holes in the screen transverse direction. 4) A link 25 is connected to one end and the link 25 is connected again. The connecting rod 26 is connected to the rod bracket 24 of the piston 15 by the pin 27 connected to the rod bracket 24 so that the inlet of the cylinder 10 whenever the compression and extension of the cylinder 10 occurs. When the inlet of the cylinder 10 is in close contact with the bottom surface of the hole 3, that is, the horizontal and vertical structures of the screen 3 and the horizontal structure are vertical and horizontal, the hydraulic pressure is generated to generate a piston 15. At the same time as the air is discharged, the air is discharged, and the cylinder air hole 11 is vertical, that is, when the bottom portion of the hole 11 and the cylinder inlet are spaced at 90 ° C, the hydraulic pressure is extinguished and suction of the dust collector 21 is performed. ) As the pressure acts on the air hole provided in the piston 15, dust collection is possible, thereby preventing a decrease in coke sorting efficiency due to clogging generated in the screen hole 3, and the carrier chute 40. And the excessive amount of coke dust dissipated through the holes 3 in the screen It is possible that in the dust collecting.

Description

Screen opening apparatus equipped with dust collecting function {screen open apparatus equipped a dust collector function}

The present invention relates to a screen opening device having a dust collecting function of the coke screening feeder, and more particularly, the discharge pressure of the air-blaster is a diaphragm in the state where the piston is raised to push up the coke ( diaphragm) The coke sprayed to the inlet of the piston is released from the hole by the opening of V / V. After completion of the opening, the screen hole and the air hole groove of the piston form a vertical structure. The present invention relates to a screen opening device having a dust collecting function, in which a conveying wind velocity acts on a recess to generate a dust collecting action so that an opening and a dust collecting action of the screen are alternately generated.

A screen feeder, a device for sorting coke used in a blast furnace into fine coke (refer to size 30 mm or less) and ingot coke (refer to size 30 mm or more), is provided between the hopper and the carrier chute. As a result, the minute coke is separated into bins, and the coke is separated into long chutes.

By the way, the screen hole (hole) is gradually deformed into an oval shape by the coke with hardness and interference, and when the coke having an irregular shape is inserted into the deformed hole, a wedge action is generated to close the screen mesh.

When the mesh is closed, the screening ability is degraded and the powdered coke is included in the coke coke in excess of the target value and charged into the furnace, which causes a hanging phenomenon in the furnace and causes problems such as a decrease in the quality of the molten iron. .

Therefore, the worker has to perform the work of opening it using a hammer and a chisel, which requires excessive work time due to the confined and narrow working space and causes a problem of causing an industrial safety disaster. As a result, transportation and productivity have been greatly reduced.

In addition, a large amount of dry dust is generated due to vibration during feeding through the carrier chute and the screen hole of the feeder, but the installation of an appropriate dust collector is not possible due to the characteristics of the facility structure. There are problems that are the main factor.

Therefore, the present invention was devised to solve the above-mentioned conventional problem, and the screen mesh is closed due to the fixing of wedge-shaped coke in the screen hole by the synergistic action of the hydraulically operated piston at the bottom of the screen. The purpose is to solve the ferro phenomenon by eliminating the wedge action.

According to another object of the present invention, in the state where the piston is raised to push up the coke, the discharge pressure of the air-blaster is injected to the inlet of the piston by the opening degree of the diaphragm V / V. When the hole of the screen and the air hole groove of the piston are in a vertical structure after the completion of the opening work, the conveying wind velocity of the dust collector acts on the groove to generate the dust collecting action. dust The purpose of this is to allow the dust collection to occur alternately.

1 is a block diagram of a coke screening system to which the screen opening device of the present invention is applied.

2 is a block diagram of a cylinder and a piston of the present invention.

Figure 3a is a cross-sectional view showing the operation of the present invention opening and air-blowing.

Figure 3b is a cross-sectional view showing the principle of the suction action of the present invention.

4 is a partially cutaway perspective view to which the screen opening device of the present invention is applied.

5 is a cross-sectional view of a hydraulic and air device applied to the present invention.

<Explanation of symbols for the main parts of the drawings>

1: screen feeder 2: punch screen

3: screen hole (mesh: 30 mm) 4: hollow shaft

5: hydraulic piping 6: air piping

7: bearing 8: shaft air hole

9: shaft hydraulic hole 10: cylinder

11: cylinder air hole 12: cylinder air groove

13: cylinder block 14: coil spring

15: piston 16: piston oil ring

17 solenoid valve 18 diaphragm valve

19: hydraulic pump 20: air blaster

21: dust collector 22: electric cylinder

23: cylinder rod 24: rod bracket

25: link 26: connecting rod

27: pin 28: piston groove

29: piston air hole 30: hydraulic inlet nozzle

31: air nozzle 32: suction air nozzle

33: air blaster nozzle 34: hydraulic drain line

35 belt conveyor 36 hopper

37: long suit 38: Goe coke

39: minute coke 40: carrier suit

41: buffer spring 42: bin

43: level switch 44: cable

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

A preferred embodiment of the screen opening device with a dust collecting function according to the present invention,

The cylinder 10 is divided into blocks 13 and the seal of the upper cylinder 10 constitutes an air groove 12 in a circular shape, and the air hole 11 coinciding with the opening in the groove has two cylinder walls ( a piston 15 having a size coinciding with the bore of the cylinder 10 and interposed with a screen in the opening of the air hole 11 on the lower cylinder 10 side. The required number of air holes 29 are radially opened in the upper end recess 12 of the upper side, and the coil spring 14 is inserted into the lower end piston 15, and the cylinder 10 and the piston 15 are connected to the hydraulic pipe 5. ) And the air passage 6 is formed in the air pipe 6, the lower end of the hydraulic pipe (5) and the air pipe (6) in the air hole (8) and the hydraulic hole (9) provided in the hollow shaft (4) So that the flow paths of the hydraulic and air of the hollow shaft 4, the air and hydraulic pipes 5 and 6, the piston 15 and the cylinder 10 are integrated. And the shaft 4 is interposed in the lower carrier chute 39 of the screen hole 3 by one set for each row of the screen holes 3 through the bearing 7 in the horizontal direction. Fixedly installed at the one end of the hollow shaft 4, and the link 25 is spoken and the other end of the link 25 is connected to the connecting rod 26 again to speak with the pin 27 coupling, and In the bracket of the connecting rod 26 in which the number of shafts 4 are spoken, the cylinder rod bracket 24 is again spoken to form a power transmission structure, and the other end of the shaft 4 has a hydraulic inflow nozzle 30. ) And the hydraulic drain nozzle 33, and the nozzles 30 and 33 are integrally communicated with the hydraulic pump 19 via the solenoid V / V 17 to form a flow path, and the suction nozzle 32 ) And the air blaster nozzle 33 and then the suction air nozzle 32 via the solenoid V / V 17 to the dust collector 21. Speech, and the air master bra nozzle 32, it is preferable to configure the diaphragm via the V / V (18) to speech with an air stirrer bra 20. The

1 is a block diagram of a coke screening system to which the screen opening device of the present invention is applied, FIG. 2 is a block diagram of a cylinder and a piston of the present invention, and FIG. 3A is a hole opening and air-blowing operation of the present invention. 3B is a cross-sectional view showing the principle of the suction action of the present invention, FIG. 4 is a partially cutaway perspective view to which the screen opening device of the present invention is applied, and FIG. 5 is a hydraulic and air device applied to the present invention. As a cross-sectional view of the present invention, it will be described with reference to the following.

As shown in FIG. 1, when coke transported to the belt 35 is introduced into the screen feeder 1 from the hopper 36, the coke 39 is fed to the powder coke 39 and the lump coke 38 by the feeding action of the feeder 1. The separated coke 38 is moved to the upper part of the screen and introduced into the long chute, and the minute coke 39 passes through the screen hole 3 and is introduced into the lower carrier chute 40. Lose.

However, some of the ingot coke 38 in the screen process is fixed in the wedge shape in the screen hole (3) when the mesh is closed, the worker has to remove by hand using a hammer and chisel, work due to the fixed wedge It will take too much time.

Therefore, in order to more effectively eliminate the wedge action, the coke 38 is pushed up from the bottom of the screen 2 to the top to eliminate it.

As shown in FIG. 2, the inside of the cylinder 10 is divided into blocks 13, and the air groove 11 is formed in the seal of the upper cylinder 10 in a circular shape and coincides with the opening in the groove. ) Is embedded in two cylinder walls, and a screen is interposed between the openings of the air holes 11 on the lower cylinder 10 side.

Comprising a piston (15) of the same size as the bore of the cylinder, and the required number of air holes 29 are radially opened in the upper groove 12 of the cylinder 10, the coil spring on the lower piston 10 Insert (14).

As shown in FIG. 3A, the piston 15 is lifted by hydraulic pressure to generate an opening action, and at the same time, the air hole 11 of the piston 15 and the cylinder 10 coincide with each other to purge air. As shown in FIG. 3B, after the opening action is completed, the piston 15 is lowered to generate a suction action by the air hole 11 of the cylinder 10.

As shown in FIG. 4, the cylinder 10 and the piston 15 are extended to the hydraulic pipe 5 and the air pipe 6 in a structure in which a flow path is opened, and the air hole 8 provided in the hollow shaft 4. ) And the lower end of the hydraulic pipe (5) and the air pipe (6) to the hydraulic hole (9) of the hollow shaft (4), air and hydraulic pipes (5,6), piston (15) and cylinder (10) The hydraulic and air flow paths are formed in one piece.

The shaft 4 is fixed in the lower carrier chute 39 of the screen hole 3 to the screen 2 via a bearing 7 in the horizontal direction, one set for each row of the screen holes 3. 5, the link 25 is spoken to one end of the hollow shaft 4 shown in FIG. 5, and the other end of the link 25 is connected to the connecting rod 26 again to the pin 27 engagement.

To the bracket of the connecting rod 26 to which the required number of shafts 4 are spoken, the cylinder rod bracket 24 is again spoken to complete the power transmission structure, and the other end of the shaft 4 has a hydraulic inflow nozzle 30. ) And the hydraulic drain nozzle 33 and the nozzles 30 and 33 are integrally communicated with the hydraulic pump 19 via the solenoid V / V 17 to form a flow path.

Further, the suction nozzle 32 and the air blaster nozzle 33 are addressed, and then the suction air nozzle 32 is addressed to the dust collector 21 via the solenoid V / V 17. The air blaster nozzle 32 communicates with the air blaster 20 via the diaphragm V / V 18 to complete the configuration.

Looking at the action generated by the configuration as follows.

When the rod 23 of the cylinder 22 generates a compression action, the inlet of the cylinder 10 and the piston 15 forms an angle of 90 ° C. with the hole 3 of the screen, and the air hole of the cylinder 10 ( 11 is opened, the air hole 29 of the piston 15 is opened, the diaphragm V / V 18 of the air blaster nozzle 33 is closed and the solenoid V of the suction air nozzle 32 is closed. As the / V 17 is opened, the floating dust generated inside the screen 2 and the carrier chute 40 is suctioned to obtain a cylinder well, an air pipe 11, It is possible to generate the dust collecting action which is collected by the dust collector via the hollow shaft 4, the air hole 8, and the suction air nozzle 32.

At this time, the solenoid V / V 17 of the hydraulic drain line 34 is opened, and the solenoid V / V 17 of the hydraulic inflow line 30 is closed at the piston 15 of the lower cylinder 10 seal. Due to the disappearance of the hydraulic pressure is to be in close contact with the bottom by the elasticity of the spring (14).

In the dust collecting action as described above, the coke screening action, that is, the feeding of the feeder is continuously performed.

After a certain period of time, the transport operation is stopped and the feeding of the feeder 1 is stopped, the extension action occurs in the cylinder rod 23, the shaft 4 is rotated by this extension action, the cylinder 10 and the piston ( The air holes 11 and 29 of 15 are brought into a coincidence state.

That is, when the extension action of the cylinder 22 is stopped and the upper end of the screen hole 3 and the piston 15 coincide, the solenoid V / V 17 of the hydraulic drain line 34 is closed and the hydraulic inflow line ( By opening the solenoid V / V (17) of 30), the ingot coke pushed up by the piston 15 is released from the screen hole (3) to generate an action of preventing the closing of the hole (3) again.

As described above, the vehicle is divided into two types, when the sorting operation occurs and the sorting operation is stopped, thereby generating a dual action that generates the dust collecting action and the opening of the screen 2.

As described above, according to the present invention, a coke sorting efficiency deterioration phenomenon occurs due to clogging generated in the screen hole, and an excessive amount of coke dust dissipated through the holes of the carrier chute and the screen is removed. It becomes possible to collect dust efficiently.

Claims (1)

The cylinder 10 is divided into blocks 13 and the seal of the upper cylinder 10 constitutes an air groove 12 in a circular shape, and the air hole 11 coinciding with the opening in the groove has two cylinder walls ( a piston 15 having a size coinciding with the bore of the cylinder 10 and interposed with a screen in the opening of the air hole 11 on the lower cylinder 10 side. The required number of air holes 29 are radially opened in the upper end recess 12 of the upper side, and the coil spring 14 is inserted into the lower end piston 15, and the cylinder 10 and the piston 15 are connected to the hydraulic pipe 5. ) And the air passage 6 is formed in the air pipe 6, the lower end of the hydraulic pipe (5) and the air pipe (6) in the air hole (8) and the hydraulic hole (9) provided in the hollow shaft (4) So that the flow paths of the hydraulic and air of the hollow shaft 4, the air and hydraulic pipes 5 and 6, the piston 15 and the cylinder 10 are integrated. And the shaft 4 is interposed in the lower carrier chute 39 of the screen hole 3 by one set for each row of the screen holes 3 through the bearing 7 in the horizontal direction. Fixedly installed at the one end of the hollow shaft 4, and the link 25 is spoken and the other end of the link 25 is connected to the connecting rod 26 again to speak with the pin 27 coupling, and In the bracket of the connecting rod 26 in which the number of shafts 4 are spoken, the cylinder rod bracket 24 is again spoken to form a power transmission structure, and the other end of the shaft 4 has a hydraulic inflow nozzle 30. ) And the hydraulic drain nozzle 33, and the nozzles 30 and 33 are integrally communicated with the hydraulic pump 19 via the solenoid V / V 17 to form a flow path, and the suction nozzle 32 ) And the air blaster nozzle 33 and then the suction air nozzle 32 via the solenoid V / V 17 to the dust collector 21. Speech, and the air master bra nozzle 32 has a porous screen device with a dust collecting function, it characterized in that the configuration to address the air bra requester 20 via the diaphragm V / V (18).