CN110749196B

CN110749196B - Sintering machine and punching ventilation device thereof

Info

Publication number: CN110749196B
Application number: CN201911038428.4A
Authority: CN
Inventors: 吴坚; 林文康; 李仲斌
Original assignee: Pangang Group Xichang Steel and Vanadium Co Ltd
Current assignee: Pangang Group Xichang Steel and Vanadium Co Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2021-06-29
Anticipated expiration: 2039-10-29
Also published as: CN110749196A

Abstract

The invention provides a punching and ventilating device of a sintering machine, which comprises a plurality of punching rods, a plurality of positioning rods and a plurality of positioning rods, wherein the plurality of punching rods can be downwards pressed into a material layer of a trolley along the vertical direction so as to punch holes on the material layer; the drive punching rod moves up and down along the vertical direction so as to enter and exit the material layer. In the process that the trolley drives the material layer to run, the punching rod is driven by the driving structure to move downwards along the vertical direction until the material layer is punched; and then the punching rod is driven by the driving structure to move along the vertical direction until the punching rod is separated from the material layer, so that the punching and ventilation of the sintering material layer are realized. Because the punching rod is separated from the sinter layer by moving upwards along the vertical direction, the damage of the material surface of the air-permeable hole can be avoided, and the quality of the sinter is improved. The invention also provides a sintering machine, which comprises an ignition furnace and the punching ventilating device, wherein the punching ventilating device is the punching ventilating device.

Description

Sintering machine and punching ventilation device thereof

Technical Field

The invention relates to the technical field of sintering machine trolley material layer ventilation, in particular to a sintering machine and a punching ventilation device thereof.

Background

With the improvement of scale production in the Xichang steel vanadium iron works, the sinter ore yield needs to be continuously improved to meet the requirements of iron making production. On the premise of no expansion of the area of the existing sintering machine, the purpose of increasing the yield is achieved only by increasing the thickness of the sintering material layer, so that the sintering of the thick material layer is the development direction of the current sintering production. Along with the thickening of the material layer, the good air permeability of the materials on the sintering pallet must be ensured to ensure that the sintering ore is completely sintered and well sintered in the effective air draft sintering section.

According to the traditional drum-type punching and ventilating device, a certain amount of steel nails are welded on the surface of a drum, and the steel nails are pressed into the surface of a material layer by the weight of the drum to punch and ventilate; however, the trolley moves forward to drive the roller to rotate, and at the moment, the steel nails leave in the material layer in a rotating mode, so that the material surface of the air-permeable holes is damaged, and the quality of the sinter is influenced.

In addition, because this drum-type ventilative device principle of punching is gravity and punches, consequently only can install in sintering ignition furnace and holding furnace in the middle of, will burn the platform truck surface bed of material to certain hardness in the ignition furnace at first, can only implement the ventilative link of punching when the platform truck moves the heat preservation section. And because the device is arranged in a heat-insulating furnace, the abrasion and the falling of the punching steel nails can not be treated in the production process, the maintenance is inconvenient, and particularly, the deep grooves can be pulled out on the surface of a material layer under the condition that a roller is inflexible to rotate or is stuck, thereby seriously influencing the sintering production.

Disclosure of Invention

In view of the above, the present invention is directed to a sintering machine and a perforation ventilation device thereof, so as to improve the quality of sintered ore.

In order to achieve the purpose, the invention provides the following technical scheme:

a perforating and ventilating device of a sintering machine comprises:

a plurality of perforating rods which can be pressed downwards into the material layer of the trolley along the vertical direction to perforate the material layer;

the driving structure drives the punching rod to move up and down along the vertical direction so as to enter and exit the material layer.

Preferably, in the above perforation ventilation apparatus, the driving structure includes:

the driving mechanism drives the punching rod to move downwards;

and the elastic element has elastic force for driving the punching rod to move upwards.

Preferably, the perforation ventilation device further includes:

the punching device comprises a rack which can move up and down along the vertical direction, wherein the rack is connected with a driving mechanism and an elastic piece, and punching rods are uniformly distributed on the rack;

and a guide structure for limiting the moving direction of the frame.

Preferably, in the above perforation ventilation apparatus, the guide structure includes:

the two guide rods are distributed along the width direction of the trolley, and two ends of the rack can be sleeved on the guide rods in a vertically movable manner;

and the guide block prevents the rack from shaking along the running direction of the trolley.

Preferably, in the above perforation ventilation device, the elastic member is a spring sleeved on the guide rod, and the spring is located on the lower side of the frame.

Preferably, in the above perforation ventilation apparatus, the driving mechanism includes:

one end of the lever is hinged and fixed;

the driving cam drives the other end of the lever to move downwards during rotation, and the upper end of the rack is hinged with the middle part of the lever;

and the driving piece is used for driving the driving cam to rotate.

Preferably, in the perforation ventilation device, the perforation rod is detachably provided on the frame.

Preferably, in the perforation ventilation apparatus, the perforation bar includes:

a rod body;

the punching nail is arranged at the lower end of the rod body and is detachably connected with the rod body.

Preferably, in the punching ventilation device, the upper end of the punching nail is provided with an installation bulge, the lower end of the rod body is provided with an installation groove matched with the installation bulge in a positioning manner, and the installation bulge is connected with the installation groove through a pin shaft.

According to the technical scheme, the punching and ventilating device of the sintering machine comprises a plurality of punching rods, wherein the punching rods can be pressed into a material layer of a trolley downwards along the vertical direction so as to punch holes on the material layer; the drive punching rod moves up and down along the vertical direction so as to enter and exit the material layer.

In the process that the trolley drives the material layer to run, the punching rod is driven by the driving structure to move downwards along the vertical direction until the material layer is punched; and then the punching rod is driven by the driving structure to move along the vertical direction until the punching rod is separated from the material layer, so that the punching and ventilation of the sintering material layer are realized.

Because the punching rod is separated from the sinter layer by moving upwards along the vertical direction, the damage of the material surface of the air-permeable hole can be avoided, and the quality of the sinter is improved.

The invention also provides a sintering machine, which comprises an ignition furnace and the punching ventilating device, wherein the punching ventilating device is any one of the punching ventilating devices, the punching ventilating device is arranged in front of the ignition furnace, and the sintering machine with the punching ventilating device has the same effect due to the effect of the punching ventilating device, so the explanation is omitted.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a sintering machine provided by an embodiment of the invention along the running direction of a trolley;

FIG. 2 is a schematic structural view of a perforating and ventilating device of a sintering machine according to an embodiment of the present invention, along the width direction of a pallet;

FIG. 3 is a schematic view of a portion of the structure of FIG. 2;

FIG. 4 is a partial enlarged structural view of B in FIG. 3;

FIG. 5 is an embodiment of the view from A in FIG. 2;

fig. 6 is another embodiment of the view from direction a in fig. 2.

Detailed Description

The embodiment of the invention provides a sintering machine and a punching and ventilating device thereof, which improve the quality of sintered ores.

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. 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.

Referring to fig. 1 to 6, a punching and ventilating device of a sintering machine according to an embodiment of the present invention includes a plurality of punching rods 5 capable of pressing down a material layer 07 of a trolley 06 in a vertical direction to punch holes on the material layer 07; and a driving structure for driving the perforating rod 5 to move up and down along the vertical direction so as to enter and exit the material layer 07.

It should be noted that, along with the operation of the trolley 06, the driving structure drives the punching rod 5 to reciprocate linearly along the vertical direction, so as to punch holes on the material layer 07 at intervals, and meet the ventilation requirement. The punching depth, the punching interval time and the punching speed of the punching rod 5 can be adjusted according to the process requirements.

In the operation process that the trolley 06 drives the material layer 07, the punching rod 5 is driven by the driving structure to move downwards along the vertical direction until the material layer 07 is punched; and then, the punching rod 5 is driven by a driving structure to move along the vertical direction until the punching rod is separated from the material layer 07, so that the punching and ventilation of the sinter layer 07 are realized.

Since the punching rod 5 is separated from the sinter layer 07 by moving upward in the vertical direction, the damage of the charge level of the air-permeable holes can be avoided, thereby improving the quality of the sinter.

Preferably, the driving structure includes: a driving mechanism for driving the punching rod 5 to move downwards; an elastic member having an elastic force for urging the punching rod 5 to move upward. This application adopts actuating mechanism to provide the drive power that punches stick 5 and move down, and elastic deformation takes place elastic deformation this moment, utilizes the elastic deformation of elastic component to provide the drive power that punches stick 5 and move up after actuating mechanism withdraws power, has simplified the structure. Of course, the present application can also utilize the driving mechanism to drive the punching rod 5 to move up and down simultaneously.

The punching and ventilating device provided by the embodiment further comprises a rack 1 capable of moving up and down along the vertical direction, the rack 1 is connected with the driving mechanism and the elastic piece, and the punching rods 5 are uniformly distributed on the rack 1; and a guide structure for limiting the moving direction of the frame 1. This application utilizes frame 1 to be in the same place all the stick 5 integrations that punch, utilizes reciprocating of frame 1 to drive the stick 5 that punches reciprocating, removes the in-process at frame 1, utilizes guide structure direction frame 1 to remove along vertical direction to the accuracy of the stick 5 moving direction that punches has been improved. Of course, the frame 1 of the present application may also be fixed, so that the punching rod 5 is movably connected with the frame 1; the application can also utilize the guide structure to directly limit the moving direction of the punching rod 5.

In order to facilitate processing, the frame 1 is made of an iron plate according to the width of the material surface of the trolley 06, and the structure is simplified. Of course, the rack 1 can also be formed by splicing a plurality of supporting plates, and the rack 1 can also be provided with material saving holes.

In order to improve the guiding effect, the guiding structure comprises two guiding rods 7 distributed along the width direction of the trolley 06, and two ends of the rack 1 can be sleeved on the guiding rods 7 in a vertically movable manner; and a guide block 9 for preventing the frame 1 from shaking along the running direction of the trolley 06. The guide block 9 can be provided with a catch wheel type or a sliding groove type according to the actual position on site.

This application utilizes guide bar 7 and guide block 9 to restrict the moving direction of frame 1 simultaneously, and the direction effect is better. The guide rod 7 may be replaced by a guide sleeve. The above-described guide structure may also comprise only the guide bar 7 or the guide block 9.

The guide rod 7 is specifically a stud screw bolt which is fixed on the platform support 4 above the trolley 06 and is convenient to disassemble and assemble. Of course, the guide rod 7 may be a polished rod, inserted into the fixing hole of the platform bracket 4 and welded and fixed.

In a further technical scheme, the elastic part is a spring 8 sleeved on the guide rod 7, and the spring 8 is positioned on the lower side of the rack 1. When the frame 1 moves downwards, the spring 8 is compressed; when the spring 8 returns, the driving frame 1 moves upwards. Alternatively, the spring 8 can also be positioned on the upper side of the frame 1, and then two ends of the spring 8 are respectively connected with the upper end of the guide rod 7 and the top end of the frame 1, and when the frame 1 moves downwards, the spring 8 is stretched; when the spring 8 returns, the frame 1 is pulled to move upwards. It will be appreciated that the spring 8 may not be fitted over the guide rod 7. The elastic element may also be an elastic column or a disc spring or the like located below the frame 1.

As shown in fig. 5, in a specific embodiment, the driving mechanism comprises a lever 2, and one end of the lever 2 is fixed in a hinged manner; the driving cam 10 drives the other end of the lever 2 to move downwards during rotation, and the upper end of the rack 1 is hinged with the middle part of the lever 2; a driving member 3 for driving the driving cam 10 to rotate. The upper end of the frame 1 is hinged with the lever 2 through a hinged support 6. The drive 3 is embodied as a motor.

During assembly, firstly the guide rod 7 is fixed on the platform support 4, the punching rod 5 and the material surface of the trolley 06 are at a certain distance in height under the condition that the spring 8 is ensured to be in a free state, then the guide block 9 is fixed, and finally the lever 2, the hinged support 6 and the driving cam 10 are connected to complete the installation of the device.

This embodiment is passed through 3 drive cams 10 intermittent type formulas of driving piece and is rotated, and then drives lever 2 and rotate from top to bottom around fixed pin joint, under this rotation effect, drives the vertical reciprocating linear motion from top to bottom of frame 1 to realize punching ventilative purpose on the sintering charge level. The driving mechanism is simple and reliable.

In another embodiment, as shown in fig. 6, the driving cam 10 may be replaced by a crank 11, and the driving mechanism is a crank-link mechanism, so that the intermittent rotation of the crank 11 is changed into the vertical up-and-down reciprocating linear motion of the frame 1, thereby achieving the purpose of perforating and ventilating the sintering charge level.

It is understood that the driving mechanism may also be a driving cylinder or a driving electric push rod or the like providing power to move up and down.

In order to facilitate the disassembly and assembly of the punching rod 5, the punching rod 5 is detachably arranged on the frame 1. A threaded hole for fixing the punching rod 5 is drilled in the plane below the rack 1, and the upper end of the punching rod 5 is fixed in the threaded hole through threads. The perforating rod 5 can also be fixed (e.g. welded) to the frame 1 in a non-removable manner.

As shown in fig. 4, the punching rod 5 includes a rod 51 and a punching pin 52 provided at a lower end of the rod 51, and the punching pin 52 is detachably connected to the rod 51. This application can change at any time after the nail 52 wearing and tearing that punches, has prolonged the ventilative device life that punches.

In the above embodiment, the upper end of the punching nail 52 is provided with a mounting protrusion, the lower end of the rod 51 is provided with a mounting groove matched with the mounting protrusion, and the mounting protrusion and the mounting groove are connected by the pin 53. The mounting protrusion and the mounting groove are respectively provided with a pin hole for the pin shaft 53 to pass through, so that the mounting and dismounting are convenient. Alternatively, the piercing pin 52 may be connected to the rod 51 by a screw structure.

As shown in fig. 1, an embodiment of the present invention further provides a sintering machine, which includes an ignition furnace 01 and a punching and ventilating device 02, where the punching and ventilating device 02 is the punching and ventilating device provided in any one of the above embodiments, and the punching and ventilating device 02 is disposed in front of the ignition furnace 01, so as to improve the quality of sintered ore.

Specifically, the sintering machine comprises a mixture ore tank 05, a round roller feeder 04, an eleven-roller distributor 03, an ignition furnace 01, a trolley 06 and a punching and ventilating device 02.

In addition, the installation position can be changed to the front part of the ignition furnace 01 instead of punching by gravity, so that the ventilation holes are uniform and complete, and the material layer 07 has good ventilation property in the whole sintering process after surface ignition, thereby meeting the requirement of large-scale sintering production of the thick material layer 07; can obviously increase the air permeability of the sinter bed 07 and improve the quality of the sintered ore.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a ventilative device that punches of sintering machine which characterized in that includes:

a plurality of perforating bars (5) which can be pressed down in the vertical direction into the material layer (07) of the trolley (06) in order to perforate said material layer (07);

the driving structure drives the punching rod (5) to move up and down along the vertical direction so as to enter and exit the material layer (07);

the driving structure includes:

the driving mechanism drives the punching rod (5) to move downwards;

an elastic member having an elastic force for urging the punching rod (5) to move upward;

the punching and ventilating device also comprises a rack (1) which can move up and down along the vertical direction, the rack (1) is connected with the driving mechanism and the elastic piece, and the punching rods (5) are uniformly distributed on the rack (1);

the drive mechanism includes:

the lever (2), one end of the said lever (2) is articularly connected fixedly;

the driving cam (10) or the crank (11) drives the other end of the lever (2) to move downwards during rotation, and the upper end of the rack (1) is hinged with the middle part of the lever (2);

the driving part (3) is used for driving the driving cam (10) or the crank (11) to rotate, the driving part (3) drives the driving cam (10) or the crank (11) to rotate intermittently to drive the lever (2) to rotate up and down around the fixed hinged point, and the rack (1) is driven to vertically reciprocate linearly under the rotating action.

2. The perforating breathing apparatus of claim 1 further comprising:

a guide structure for limiting the moving direction of the frame (1).

3. The perforating breathing apparatus of claim 2 wherein said guide structure comprises:

two guide rods (7) distributed along the width direction of the trolley (06), wherein two ends of the rack (1) can be sleeved on the guide rods (7) in a vertically movable manner;

and the guide block (9) is used for preventing the rack (1) from shaking along the running direction of the trolley (06).

4. The perforating and breathing device according to claim 3, characterized in that said elastic element is a spring (8) fitted over said guide rod (7), said spring (8) being located on the lower side of said frame (1).

5. Perforating breathing device according to claim 1, characterized in that the perforating rod (5) is removably arranged on the frame (1).

6. Perforating breathing device according to claim 1, characterized in that said perforating rod (5) comprises:

a rod (51);

the punching nail (52) is arranged at the lower end of the rod body (51), and the punching nail (52) is detachably connected with the rod body (51).

7. The perforating and ventilating device as claimed in claim 6, characterized in that the perforating nail (52) is provided with a mounting protrusion at the upper end, the rod body (51) is provided with a mounting groove at the lower end for positioning and matching with the mounting protrusion, and the mounting protrusion and the mounting groove are connected through a pin shaft (53).

8. A sintering machine comprising an ignition furnace (01) and a perforation and ventilation device (02), characterized in that the perforation and ventilation device (02) is the perforation and ventilation device according to any one of claims 1 to 7, and the perforation and ventilation device (02) is arranged in front of the ignition furnace (01).