CN212404142U

CN212404142U - Hot air flow regulating valve for ironmaking blast furnace tuyere

Info

Publication number: CN212404142U
Application number: CN202021126948.9U
Authority: CN
Inventors: 曹金坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-01-26
Anticipated expiration: 2030-06-17

Abstract

The utility model discloses an iron-smelting blast furnace tuyere hot air flow control valve, including the governing valve pipe, the intraductal valve plate that is provided with of governing valve, the inside rotation of valve plate is connected with four regulating plates, rotates between four regulating plates and is connected with the bull stick, and the outer end and the equal fixed mounting in the inner of two bull sticks have bevel gear one. The utility model discloses a set up a plurality of pivoted regulating plates on the valve plate, make the regulating plate rotate through some drive mechanism, through stirring the shifting block, then can adjust the amount of wind of pipeline, rethread set nut location, can the ration, and easy operation, convenient and fast through rotating the ring gear one, can carry out the rotation regulation to the bolt on the flange of valve pipe both sides, in making its precession blast furnace pipeline's flange's nut, need not to rotate a plurality of coupling nut, time saving and labor saving for the installation dismantlement efficiency.

Description

Hot air flow regulating valve for ironmaking blast furnace tuyere

Technical Field

The utility model relates to a regulating valve, in particular to a hot air flow regulating valve of an ironmaking blast furnace tuyere.

Background

The blast furnace uses steel plate as furnace shell, and refractory brick lining is built in the shell. The blast furnace body is divided into a furnace throat, a furnace body, a furnace waist, a furnace belly and a furnace hearth 5 from top to bottom. Because of the advantages of good economic index, simple process, large production capacity, high labor production efficiency, low energy consumption and the like of the blast furnace ironmaking technology, the iron produced by the method accounts for the vast majority of the total iron production in the world. In the production of a blast furnace, iron ore, coke, and a flux for slag formation are charged from the top of the furnace, and preheated air is blown into the furnace through tuyeres located along the periphery of the furnace at the lower part of the furnace. Carbon in the coke is burnt with oxygen blown into the air at high temperature to generate carbon monoxide and hydrogen, and oxygen in the iron ore is removed in the ascending process in the furnace, so that iron is obtained by reduction. The smelted molten iron is discharged from the iron notch.

Need be used to pipeline flow control valve in the present blast furnace ironmaking, however, present pipeline air regulation valve regulation structure is comparatively complicated, and accommodation process is comparatively wasted time and energy, and generally all through flange joint fixed between present governing valve and the pipeline, bolt and nut on with the flange bolt tightly, the installation is loaded down with trivial details. Therefore, the utility model provides an ironmaking blast furnace tuyere hot air flow regulating valve to solve the problem that proposes in the above-mentioned background art.

Disclosure of Invention

An object of the utility model is to provide an ironmaking blast furnace tuyere hot air flow control valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a hot air flow regulating valve for an ironmaking blast furnace tuyere comprises a regulating valve pipe, wherein a valve plate is arranged in the regulating valve pipe, four regulating plates are rotatably connected inside the valve plate, rotating rods are rotatably connected between the four regulating plates, bevel gears I are fixedly arranged at the outer ends and the inner ends of the two rotating rods, bevel gears III meshed with the bevel gears I are arranged on two sides of the bevel gears I at the outer ends, the bevel gears III on two sides are respectively and fixedly connected with the regulating plates on two sides, a bevel gear II rotatably connected inside the valve plate is arranged between the bevel gears I at the inner ends, and the bevel gear II is meshed with the bevel gears I;

one side fixedly connected with of valve plate runs through the shifting block of governing valve pipe, and outside one side fixed mounting of valve plate has the L shaped plate, and the one end of L shaped plate rotates and is connected with the straight-teeth gear, and one side of straight-teeth gear is equipped with the worm that rotates to be connected in the L shaped plate, and worm and straight-teeth gear meshing, the outside fixedly connected with pivot of bevel gear two, the outside both ends of governing valve pipe all rotate and are connected with ring gear one.

As a further aspect of the present invention: the valve plate is connected in the regulating valve pipe in a left-right sliding mode, and a through groove corresponding to the shifting block is formed in one side of the regulating valve pipe.

As a further aspect of the present invention: the side of the shifting block is fixedly provided with a sealing cover positioned on the outer surface of the regulating valve pipe, and the sealing cover is in threaded connection with a positioning bolt.

As a further aspect of the present invention: the inner wall of the adjusting valve pipe is fixedly provided with a toothed plate, and a straight gear is meshed with the toothed plate.

As a further aspect of the present invention: the outer end of the rotating shaft and one end of the worm are both fixedly provided with driving wheels, and driving belts are sleeved on the peripheral sides of the two driving wheels.

As a further aspect of the present invention: and the two ends of the regulating valve pipe are fixedly provided with connecting flanges, a plurality of connecting bolts are arranged on the connecting flanges, and a second toothed ring meshed with the first toothed ring is fixedly arranged on the periphery of each connecting bolt.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up a plurality of pivoted regulating plates on the valve plate, make the regulating plate rotate through some drive mechanism, through stirring the shifting block, then can adjust the amount of wind of pipeline, rethread positioning nut fixes a position, can the ration, easy operation, convenient and fast.

2. The utility model discloses a rotating ring gear one, can carrying out rotation regulation to the bolt on the flange of valve pipe both sides, in making its precession blast furnace pipeline's flange's nut, need not to rotate a plurality of coupling nut, labour saving and time saving for efficiency is dismantled in the installation.

Drawings

FIG. 1 is a schematic structural diagram of a hot air flow regulating valve at an air port of an iron-making blast furnace.

FIG. 2 is a schematic view of the internal structure of a valve plate in a hot air flow control valve at an air inlet of an iron-making blast furnace.

FIG. 3 is a schematic view of an external structure of a regulating valve pipe in a hot air flow regulating valve of an ironmaking blast furnace tuyere.

In the figure: 1. a regulator valve tube; 2. a connecting flange; 3. a first toothed ring; 4. a valve plate; 5. a rotating shaft; 6. an L-shaped plate; 7. a second gear ring; 8. a toothed plate; 9. a sealing cover; 10. shifting blocks; 11. positioning the bolt; 12. a connecting bolt; 13. a spur gear; 14. a worm; 15. a transmission belt; 16. a driving wheel; 17. an adjusting plate; 18. a rotating rod; 19. a first bevel gear; 20. a second bevel gear; 21. and a third bevel gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, in an embodiment of the present invention, an iron-making blast furnace tuyere hot air flow control valve comprises a control valve pipe 1, a valve plate 4 is disposed in the control valve pipe 1, four control plates 17 are rotatably connected to the inside of the valve plate 4, rotating rods 18 are rotatably connected between the four control plates 17, bevel gears 19 are fixedly mounted at the outer ends and the inner ends of the two rotating rods 18, bevel gears three 21 engaged with the outer bevel gears 19 are disposed at both sides of the outer bevel gears 19, the bevel gears three 21 at both sides are respectively fixedly connected with the control plates 17 at both sides, a bevel gear two 20 rotatably connected to the inside of the valve plate 4 is disposed between the two bevel gears 19 at the inner end, the bevel gear two 20 is engaged with the two inner bevel gears 19, a toothed ring one 3 is rotatably connected to both ends of the outside of the control valve pipe 1, connecting flanges 2 are fixedly mounted at both ends of the control valve pipe 1, a second gear ring 7 meshed with the first gear ring 3 is fixedly arranged on the peripheral side of the connecting bolt 12, the adjusting valve is firstly installed and fixed, a connecting nut on a connecting flange 2 on an adjusting valve pipe 1 is aligned with a nut on a blast furnace pipeline, the first gear ring 3 on the adjusting valve pipe 1 is rotated, the connecting bolt 12 is rotated through transmission of the first gear ring 3 and the second gear ring 7, the connecting bolt 12 is screwed into the connecting nut of the blast furnace pipeline, and installation is completed;

one side of the valve plate 4 is fixedly connected with a shifting block 10 penetrating through the regulating valve pipe 1, the valve plate 4 is connected in the regulating valve pipe 1 in a left-right sliding manner, one side of the regulating valve pipe 1 is provided with a through groove corresponding to the shifting block 10, the periphery of the shifting block 10 is fixedly provided with a sealing cover 9 positioned on the outer surface of the regulating valve pipe 1, the sealing cover 9 is in threaded connection with a positioning bolt 11, the positioning bolt 11 on the sealing cover 9 is rotated, the sealing cover 9 cannot move together with the shifting block 10, an adjusting plate 17 cannot move any more, the air volume is controlled, one side of the outer part of the valve plate 4 is fixedly provided with an L-shaped plate 6, one end of the L-shaped plate 6 is rotatably connected with a straight gear 13, the inner wall of the regulating valve pipe 1 is fixedly provided with a toothed plate 8, the straight gear 13 is meshed with the toothed plate 8, one side of the straight gear 13 is provided with a worm 14 rotatably connected in the L-shaped plate 6, the outer end of the rotating shaft 5 and one end of the worm 14 are both fixedly provided with driving wheels 16, and the periphery of each of the two driving wheels 16 is sleeved with a driving belt 15, when the air volume of the pipeline is adjusted, the valve plate 4 sliding in the adjusting valve pipe 1 is shifted through the shifting block 10, in the moving process of the valve plate 4, the straight gear 13 on the L-shaped plate 6 is meshed with the toothed plate 8, the worm 14 is driven to rotate by the straight gear 13, the rotating shaft 5 is driven to rotate by the worm 14 through the driving wheels 16 and the driving belts 15, the rotating shaft 5 rotates, the adjusting plate 17 rotates through the transmission of the bevel gear two 20, the rotating rod 18, the bevel gear one 19 and the bevel gear three 21, the adjusting plate 17 rotates, the valve plate 4 leaks out of a gap.

The utility model discloses a theory of operation is:

when the air volume regulating valve is used, the air volume regulating valve needs to be installed and fixed firstly, the connecting nut on the connecting flange 2 on the regulating valve pipe 1 is aligned with the nut on the blast furnace pipeline, the first toothed ring 3 on the regulating valve pipe 1 is rotated, the first toothed ring 3 and the second toothed ring 7 are used for transmission, so that the connecting bolt 12 is rotated, and the connecting bolt 12 is screwed into the connecting nut of the blast furnace pipeline, and the installation is finished; when the air volume of a pipeline is adjusted, the valve plate 4 sliding in the adjusting valve pipe 1 is shifted through the shifting block 10, in the moving process of the valve plate 4, the straight gear 13 on the L-shaped plate 6 is meshed with the toothed plate 8, the worm 14 is driven to rotate by the straight gear 13, the worm 14 is driven to rotate by the driving wheel 16 and the driving belt 15, the rotating shaft 5 rotates, the adjusting plate 17 rotates through the transmission of the bevel gear II 20, the rotating rod 18, the bevel gear I19 and the bevel gear III 21, the adjusting plate 17 rotates, the valve plate 4 leaks out of a gap and ventilates, the rotating angle is increased, the air volume is increased, the positioning bolt 11 on the sealing cover 9 is rotated, the sealing cover 9 cannot move together with the shifting block 10, the adjusting plate 17 does not move any more.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A hot air flow regulating valve for an ironmaking blast furnace tuyere comprises a regulating valve pipe (1) and is characterized in that a valve plate (4) is arranged in the regulating valve pipe (1), four regulating plates (17) are rotatably connected inside the valve plate (4), rotating rods (18) are rotatably connected between the four regulating plates (17), bevel gear I (19) are fixedly mounted at the outer end and the inner end of each rotating rod (18), bevel gear III (21) meshed with the outer end bevel gear I (19) are arranged on two sides of the outer end bevel gear I (19), the bevel gear III (21) on two sides are fixedly connected with the regulating plates (17) on two sides respectively, bevel gear II (20) rotatably connected inside the valve plate (4) is arranged between the two bevel gear I (19) on the inner end, and the bevel gear II (20) is meshed with the bevel gear I (19;

one side fixedly connected with of valve plate (4) runs through shifting block (10) of governing valve pipe (1), and outside one side fixed mounting of valve plate (4) has L shaped plate (6), and the one end of L shaped plate (6) is rotated and is connected with straight-teeth gear (13), and one side of straight-teeth gear (13) is equipped with to rotate and connects worm (14) in L shaped plate (6), and worm (14) and straight-teeth gear (13) meshing, outside fixedly connected with pivot (5) of bevel gear two (20), the outside both ends of governing valve pipe (1) all rotate and are connected with ring gear (3).

2. The hot air flow regulating valve for the tuyere of the iron-making blast furnace as claimed in claim 1, wherein the valve plate (4) is connected in the regulating valve pipe (1) in a left-right sliding manner, and one side of the regulating valve pipe (1) is provided with a through groove corresponding to the shifting block (10).

3. The hot air flow regulating valve for the tuyere of the iron-making blast furnace as claimed in claim 1, wherein a sealing cover (9) positioned on the outer surface of the regulating valve pipe (1) is fixedly installed on the peripheral side of the shifting block (10), and a positioning bolt (11) is connected to the sealing cover (9) in a threaded manner.

4. The hot air flow regulating valve for the tuyere of the iron-making blast furnace as claimed in claim 1, wherein a toothed plate (8) is fixedly mounted on the inner wall of the regulating valve pipe (1), and the spur gear (13) is engaged with the toothed plate (8).

5. The hot air flow regulating valve for the tuyere of the iron-making blast furnace as claimed in claim 1, wherein the outer end of the rotating shaft (5) and one end of the worm (14) are both fixedly provided with driving wheels (16), and a driving belt (15) is sleeved on the periphery of the two driving wheels (16).

6. The hot air flow regulating valve for the tuyere of the iron-making blast furnace as claimed in claim 1, wherein both ends of the regulating valve pipe (1) are fixedly provided with connecting flanges (2), a plurality of connecting bolts (12) are arranged on the connecting flanges (2), and a second toothed ring (7) meshed with the first toothed ring (3) is fixedly arranged on the peripheral side of each connecting bolt (12).