CN219045574U

CN219045574U - Novel high-temperature flue gas rectangular valve

Info

Publication number: CN219045574U
Application number: CN202222563550.7U
Authority: CN
Inventors: 周宁; 韦远华; 李发勇; 张明明; 陈宗喜; 郑运州; 苏柳铭; 滕谊
Original assignee: Liuzhou Iron and Steel Co Ltd; Guangxi Iron and Steel Group Co Ltd
Current assignee: Liuzhou Iron and Steel Co Ltd; Guangxi Iron and Steel Group Co Ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-05-19
Anticipated expiration: 2032-09-27

Abstract

The utility model provides a novel high-temperature flue gas rectangular valve which is characterized by comprising a blade (1), a rib plate (2), a main shaft (3) and a connecting plate (4); the blades (1) are multiple and are provided with gaps, and the blades (1) are cuboid; the rib plates (2) are in a plurality of groups and are welded on the front side of the blade (1) in a transverse and longitudinal mode so that a plurality of square grids are distributed on the blade; the connecting plate (4) is arranged at the top end of the main shaft (3) and is connected with the main shaft (3). The device solves the problems that the secondary dust removal valve blade in the prior art is baked and deformed by high-temperature flue gas, valve blocking or blowing is caused to influence air distribution, and thus the dust removal effect is poor.

Description

Novel high-temperature flue gas rectangular valve

Technical Field

The utility model relates to the field of converter equipment in the steel industry, in particular to a smoke valve, and especially relates to a novel high-temperature smoke rectangular valve.

Background

The dust removing system plays a role in recovering coal gas and extracting and collecting flue gas in the steelmaking process. With the proposal of the carbon peak reaching target in China, the dust removal is more important to the steelmaking industry. The dust removing system which is commonly used in China at present consists of three dust removing systems, wherein the primary dust removing system is used for recycling gas and smoke generated in the converter converting process, the secondary dust removing system is mainly used for recycling the iron-charging, steel-tapping and smoke which cannot be pumped away by primary dust removing, and the tertiary dust removing system is also called environmental dust removing and is mainly used for capturing and recycling the smoke which drifts in a factory building. In the three systems, a dust removal valve needs to be arranged near the smoke trapping cover for secondary dust removal, and the valve mainly has the functions of speed regulation in linkage with a fan and reasonably distributing air quantity. In normal use, the quality of the scrap steel is inevitably poor, and a large amount of smoke is generated when the scrap steel is added. The flue gas is mixed with open fire and is trapped by secondary dust removal. The flue gas mixed with open fire is harmful to the safety of the rectangular valve, and when serious, the whole dust removing pipe can be burnt to red, and the valve opening is reduced to reduce the rotating speed of the fan, so that the dust removing effect cannot be achieved.

In summary, the following problems exist in the prior art: in the steelmaking converter, the valve blades of the secondary dedusting system are baked and deformed by high-temperature flue gas, so that valve blocking or blowing is caused, air distribution is affected, and the dedusting effect is poor.

Disclosure of Invention

The utility model provides a novel high-temperature flue gas rectangular valve, which aims to solve the problem that in the prior art, a secondary dust removal valve blade is deformed by baking of high-temperature flue gas, so that valve blocking or blowing is caused to influence air quantity distribution, and the dust removal effect is poor.

Therefore, the utility model provides a smoke valve, namely a novel high-temperature smoke rectangular valve.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a novel high-temperature flue gas rectangular valve comprises a blade 1, a rib plate 2, a main shaft 3 and a connecting plate 4; the blades 1 are multiple pieces and are provided with gaps, and the blades 1 are cuboid; the rib plates 2 are in a plurality of groups and are welded on the front side of the blade 1 in a transverse and longitudinal mode so that a plurality of square grids are distributed on the blade; the connecting plate 4 is arranged at the top end of the main shaft 3 and is connected with the main shaft 3.

Further, rib plates 2 are connected to the top and the bottom of the front side of the blade 1.

Further, the gaps between the blades 1 are equal.

Further, the number of the blades 1 is three.

Further, the square cells are the same size.

Further, the novel high-temperature flue gas rectangular valve further comprises a cylinder 5 for driving the main shaft 3, and the cylinder 5 is arranged at the upper end of the connecting plate 4.

Further, the number of the main shafts 3 is plural, each main shaft 3 is connected with one blade 1, and the top end of each main shaft 3 is convexly connected with the top of the blade 1.

Further, the novel high-temperature flue gas rectangular valve is arranged on the dust removal pipe in parallel.

Further, the gap is 50mm, and the main shafts rotate simultaneously.

Further, the main shaft is welded to the blade vertically.

Further, the cylinder is contracted by a PLC remote control.

Compared with the prior art, the utility model has the beneficial effects that: the novel high-temperature flue gas rectangular valve comprises a blade 1, a rib plate 2, a main shaft 3 and a connecting plate 4; the blades 1 are a plurality of blades and are provided with gaps, and the blades 1 are cuboid, and the utility model removes redundant blade edge parts, so that when the valve is closed by 100%, gaps are still reserved between the two blades, and the gaps can not influence the air distribution of other valves on site; the rib plates 2 are in a plurality of groups and are welded on the front side of the blade 1 in a transverse and longitudinal mode so that a plurality of square grids are distributed on the blade.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Reference numerals illustrate: 1. a blade; 2. rib plates; 3. a main shaft; 4. a connecting plate; 5. and (3) a cylinder.

Detailed Description

The present utility model will now be described for a clearer understanding of technical features, objects, and effects of the present utility model.

The utility model provides a novel high-temperature flue gas rectangular valve, which is shown in figure 1 and comprises a blade 1, a rib plate 2, a main shaft 3 and a connecting plate 4; the blade is formed by cutting a whole piece of common steel plate; the rib plates 2 are multiple groups and are welded on the front side of the blade 1 in a transverse and longitudinal mode so that a plurality of square grids are distributed on the blade, for example: rectangular square, oblique square or polygonal square; further, the square grids are the same in size, so that the strength of the blade is enhanced, meanwhile, the weight of the blade is not increased, stable operation of the driving cylinder is guaranteed, the failure rate of the cylinder is reduced, and the maintenance cost is reduced.

Furthermore, rib plates 2 are connected to the top and the bottom of the front side of the blade 1, so that the blade is ensured not to deform when being used on line for a long time. The novel high-temperature flue gas rectangular valve is arranged on the dust removal pipe in parallel, when the valve is closed in the use process, one side of the blade is always subjected to gravity action to be bent downwards, the temperature of the environment is high, the blade is heated and softened, and the draught fan is in front of the valve, so that the blade is completely deformed downwards after being used for a period of time.

The blades 1 are multiple and have gaps, as in the original blade design, no gap exists after the two blades are completely closed, and the two blades are blocked due to the deformation of the blades after the valve is completely closed, and only 90% of the blades can be closed in actual use; the blades 1 are cuboid, and the number of the blades 1 is three; the connecting plate 4 is arranged at the top end of the main shaft 3 and is connected with the main shaft 3, so that the connecting plate drives the main shaft to rotate.

Further, gaps among the blades 1 are equal, and the gaps are 50mm, so that air quantity is distributed uniformly.

Further, the novel high-temperature flue gas rectangular valve further comprises a cylinder 5 for driving the main shaft 3, and the cylinder 5 is arranged at the upper end of the connecting plate 4, so that the cylinder 5 stretches and contracts to drive the connecting plate 4 to do rotary motion.

Further, the number of the spindles 3 is plural, the spindles rotate simultaneously, each spindle 3 is connected with one blade 1, the top end of each spindle 3 is convexly connected to the top of each blade 1, so that the connecting plate 4 drives the spindles 3 to rotate, and the whole blade 1 is driven to rotate together, thereby completing the opening and closing actions of the valve.

Further, the main shaft is welded vertically to the blade, for example at the rear or upper end of the blade.

The novel high-temperature flue gas rectangular valve comprises a blade 1, a rib plate 2, a main shaft 3 and a connecting plate 4, when the novel high-temperature flue gas rectangular valve is used, the novel high-temperature flue gas rectangular valve stretches out and draws back through a PLC (programmable logic controller) remote control cylinder 5, the connecting plate 4 is driven to do rotary motion, the connecting plate 4 drives the main shaft 3 to rotate, and accordingly the whole blade 1 is driven to rotate together, and opening and closing actions of the valve are completed. The reinforced blade is adopted, the blade 1 is prevented from being baked and deformed by high-temperature smoke through structural optimization design, the weight of the blade is reduced while the strength is ensured, flexible driving and smooth running of a driving cylinder (air cylinder) are ensured, and the failure rate of the air cylinder is reduced; the blades 1 are a plurality of blades and are provided with gaps, the utility model removes the edge parts of redundant blades, so that when the valve is closed to 100%, gaps are still reserved between the two blades, and the gaps can not influence the air distribution of other valves on site.

The foregoing is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model. In order that the components of the utility model may be combined without conflict, any person skilled in the art shall make equivalent changes and modifications without departing from the spirit and principles of the utility model.

Claims

1. The novel high-temperature flue gas rectangular valve is characterized by comprising a blade (1), a rib plate (2), a main shaft (3) and a connecting plate (4); the blades (1) are multiple and are provided with gaps, and the blades (1) are cuboid; the rib plates (2) are in a plurality of groups and are welded on the front side of the blade (1) in a transverse and longitudinal mode so that a plurality of square grids are distributed on the blade; the connecting plate (4) is arranged at the top end of the main shaft (3) and is connected with the main shaft (3).

2. The novel high-temperature flue gas rectangular valve according to claim 1, wherein rib plates (2) are connected to the top and the bottom of the front side of the blade (1).

3. A novel high temperature flue gas rectangular valve according to claim 1, wherein the gaps between the vanes (1) are all equal.

4. The novel high-temperature flue gas rectangular valve according to claim 1, wherein the number of the blades (1) is three.

5. The novel high temperature flue gas rectangular valve according to claim 1, wherein the square grids are the same size.

6. The novel high-temperature flue gas rectangular valve according to claim 1, further comprising a cylinder (5) driving the main shaft (3), wherein the cylinder (5) is arranged at the upper end of the connecting plate (4).

7. The novel high-temperature flue gas rectangular valve according to claim 1, wherein a plurality of main shafts (3) are provided, each main shaft (3) is connected with one blade (1), and the top end of each main shaft (3) is convexly connected with the top of each blade (1).

8. The novel high-temperature flue gas rectangular valve according to claim 1, wherein the novel high-temperature flue gas rectangular valve is arranged on the dust removal pipe in parallel.

9. The novel high-temperature flue gas rectangular valve according to claim 1, wherein the gap is 50mm.