CN216420629U

CN216420629U - Dust hood for dedusting of rolling mill

Info

Publication number: CN216420629U
Application number: CN202122523708.3U
Authority: CN
Inventors: 吴中兴; 马文军; 方玉锁; 任金生; 王壮志
Original assignee: Beijing Longteng Huachuang Environmental Energy & Technology Co ltd
Current assignee: Beijing Longteng Huachuang Environmental Energy & Technology Co ltd
Priority date: 2021-10-20
Filing date: 2021-10-20
Publication date: 2022-05-03
Anticipated expiration: 2031-10-20

Abstract

The utility model provides a be used for rolling mill to remove dust and use dust excluding hood, relate to flue gas dust removal technical field, including dust excluding hood bellows top, the bottom surface on dust excluding hood bellows top is connected with bellows body, bellows body's surface is connected with the housing, the surface connection of housing has dephosphorization water collecting plate, dust cover tuber pipe interface has been seted up to bellows body's surface, bellows body's bottom surface is connected with the bottom plate, the top surface of bottom plate is connected with the bottom surface of housing, dephosphorization water collecting plate is G shape, the collecting vat has been seted up to the surface of dephosphorization water collecting plate, and the bottom surface of bottom plate is connected with the removal wheel, it is equipped with two sets ofly to remove the wheel, every group is two, be located the left side and the right side of bottom plate respectively. The utility model discloses, rolling mill production and the needs of overhauing are fully considered to portable dust excluding hood, fully consider the position and the scope of producing the dirt point, guarantee that the quick dismouting can be when the overhaul of the equipments dimension, guarantee that dust collection efficiency is high, the dust removal scope full coverage, dusty gas is not excessive.

Description

Dust hood for dedusting of rolling mill

Technical Field

The utility model relates to a flue gas dust removal technical field especially relates to a be used for rolling mill to remove dust and use dust excluding hood.

Background

A push plan and the current national, provincial and municipal documents of the standard treatment working scheme of the smoke in the whole process of the steel industry and the environmental protection trend are comprehensively evaluated by part of steel mills, and two sets of rolling mill plastic burning plate dust removal systems are required to be constructed in a matched manner to ensure that the dust removal of a first-line rolling mill for rolling steel meets the national emission requirements. The method mainly collects and processes the smoke dust generated in the rolling process of the rolling mill, meets the environmental protection requirement on site, better improves the atmospheric environment quality, and generates a large amount of smoke dust in the production process of the rolling mill, 1) the smoke dust contains waste gas such as ferric oxide, water vapor, oil mist and the like; 2) medium volume weight: about 1, 2kg/m3 (standard); 3) dust concentration at the inlet of the dust remover: about 5g/m3 (standard); 4) temperature of the medium: about 70 ℃; 5) water content of flue gas dust: about 9% of the dust removal system collects dust-containing gas at each dust source point through a plurality of dust hoods, enters a dust remover after passing through a pipeline and being dehydrated, and separates dust from gas through a plastic burning plate. The purified gas is discharged into the atmosphere through a fan and an exhaust chimney.

The design of the movable dust hood considers the integrity of the whole mechanism of the rolling mill, the high efficiency of dust collection and dust collection is realized, the rapid and rapid disassembly and assembly of inspection and maintenance is guaranteed, the design form of the movable dust hood must consider the condition of convenient roll change every day, the time of roll change every time cannot be prolonged, the movable dust hood requires rapid disassembly and assembly and design and is manually movable, the disassembly and assembly time is controlled within 1 hour, the movable dust hood is respectively provided with a dust hood at the front and the back of each rolling mill according to the current flue gas situation of the rolling mill, the movable dust hood is provided with necessary operation holes, an access door and an observation hole according to the requirements of process operation, the door hole of the dust hood is tight and flexible to close, and places with higher air flow velocity are avoided, the movable dust hood is provided with a flow guide device according to the actual condition of generated air flow, and the rapid and full collection and processing of air are facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a purpose is in order to solve the shortcoming that exists among the prior art, through the cooperation of multicomponent while, has guaranteed dust collection efficiency and dust removal scope as far as possible, has avoidd the problem that conventional dust removal brought.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a be used for rolling mill to remove dust and use dust excluding hood, includes dust excluding hood bellows top, the bottom surface on dust excluding hood bellows top is connected with the bellows body, the surface connection of bellows body has the housing, the surface connection of housing has dephosphorization water to collect the board, dust cover tuber pipe interface has been seted up to the surface of bellows body.

In a preferred embodiment, a bottom plate is connected to the bottom surface of the bellows body, and the top surface of the bottom plate is connected to the bottom surface of the housing.

As a preferred embodiment, the phosphorus removal water collection plate is G-shaped, a collection tank is disposed on the outer surface of the phosphorus removal water collection plate, and a moving wheel is connected to the bottom surface of the bottom plate.

As a preferred embodiment, there are two sets of moving wheels, two sets of moving wheels are provided, and the two sets of moving wheels are respectively located on the left side and the right side of the bottom plate, and the outer surfaces of the moving wheels are slidably connected with moving tracks.

As a preferred embodiment, the outer surface of the top surface of the dust hood wind box is connected with two upper lifting lugs, and the two upper lifting lugs are respectively positioned on the left side and the right side of the top surface of the dust hood wind box.

As a preferred embodiment, two sides of the outer surface of the air box body are connected with side hanging lugs, and the two side hanging lugs are respectively positioned on the left side and the right side of the outer surface of the dust cover air box body.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. the utility model discloses in, the needs that rolling mill production and maintenance were fully considered to portable dust excluding hood, fully consider the position and the scope of producing the dirt point, guarantee that the quick dismouting can be guaranteed when the overhaul of the equipments is maintained rapidly, guarantee that dust collection efficiency is high, the dust removal scope all standing, dusty gas is not excessive.

2. The utility model discloses in, when the dust excluding hood needs to be changed alone, loosen flange's tight valve soon earlier, wave the handle, make the fan housing remove along the track to do not hinder operating position can. If the scope of overhaul is great, can hang whole fan housing from the maintenance district with the factory building driving, compare in conventional dust removal mode, the utility model discloses dephosphorization water is collected betterly, and the integrated level is high, and dust collection efficiency is high, and the defogging is effectual.

Drawings

FIG. 1 is a perspective view of the dust hood for removing dust of a rolling mill according to the present invention.

Illustration of the drawings:

1. the dust hood is arranged on the top of the wind box; 2. a bellows body; 3. a housing; 4. a phosphorus removal water collection plate; 5. an air pipe connector; 6. a moving wheel; 7. a moving track; 8. an upper lifting lug; 9. and hanging the lug on the side surface.

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.

Example 1

As shown in fig. 1, the utility model provides a technical solution: the utility model provides a be used for rolling mill to remove dust and use dust excluding hood, includes dust excluding hood wind box top 1, and the bottom surface of dust excluding hood wind box top 1 is connected with bellows body 2, and the surface connection of bellows body 2 has housing 3, and the surface of housing 3 is connected with dephosphorization water collecting plate 4, and dust cover tuber pipe interface 5 has been seted up to bellows body 2's surface, and the bottom surface of bellows body 2 is connected with the bottom plate, and the top surface of bottom plate is connected with the bottom surface of housing 3.

In bookIn the embodiment, one existing 3500-mill line is mainly used for rolling medium plates within 3.5m in width, one roughing mill and one finishing mill are arranged in the production line, a large amount of water mist and oil smoke are generated in the rolling process of a steel plate, and in order to meet the latest environmental protection requirements, 50 ten thousand m is matched and constructed³The engineering collects dust-containing gas at each dust source point by a plurality of dust hoods, the dust-containing gas enters the dust remover after passing through a pipeline and being dehydrated, the dust and the gas are separated by the plastic burning plate, the purified gas is discharged into the atmosphere through a fan and an exhaust chimney, dust attached to the surface of the plastic burning plate falls into a dust hopper of the dust remover after being guided by an electromagnetic valve to perform back flushing on compressed air, then the dust falls into a rolling mill trench after being discharged by a spiral conveyer and a rotary ash discharge valve, and the dust is uniformly recycled and then is washed by steel rolling turbid circulating water and directly enters a slag flushing pool for treatment³Per, finishing mill 30 ten thousand meters³The method is characterized in that a movable dust hood is arranged at the front and the rear of the rolling mill, the size of a hood opening is 3.5mx4m, the height of the dust hood close to the machine side is 1.8 m, the height of the far end is 0.8 m, the designed flow velocity of the air hood is 2m/s, the negative pressure is 1000PA, and the discharge concentration of particulate matters at the outlet of the dust remover is less than 5mg/m after the acceptance of engineering work³No visible dust around the rolling mill, and the post dust content is less than 2mg/m³The movable dust hood fully considers the production and maintenance requirements of the rolling mill and the position and range of a dust generating point, can be quickly and quickly disassembled and assembled when equipment maintenance is guaranteed, guarantees high dust removal efficiency and full coverage of a dust removal range, prevents dust-containing gas from overflowing, guarantees the dust removal efficiency and the dust removal range as far as possible through cooperation of multiple parts, and avoids the problems caused by conventional dust removal.

Example 2

As shown in fig. 1, dephosphorization water collecting plate 4 is G shape, the collecting vat has been seted up to dephosphorization water collecting plate 4's surface, and the bottom surface of bottom plate is connected with removes wheel 6, it is equipped with two sets ofly to remove wheel 6, two of every group, be located the left side and the right side of bottom plate respectively, the surface sliding connection that removes wheel 6 has removal track 7, the surface connection of dust excluding hood bellows top 1 has upper portion lug 8, upper portion lug 8 is provided with two altogether, be located the left side and the right side of dust excluding hood bellows top 1 top surface respectively, the surface both sides of bellows body 2 are connected with side hangers 9, side hangers 9 are located the left side and the right side of dust excluding hood bellows body 2 surface respectively totally two.

In this embodiment, when the dust hood needs to be replaced separately, the quick-tightening valve of the connecting flange is firstly loosened, and the handle is shaken to move the wind hood along the rail to a working position where the wind hood does not interfere with the working position. If the overhaul range is large, the whole fan cover can be lifted away from the overhaul area by a workshop crane.

The working principle of the embodiment is as follows:

as shown in fig. 1, the movable dust hood fully considers the production and maintenance requirements of the rolling mill, fully considers the position and range of a dust generating point, ensures that the device can be quickly disassembled and assembled during maintenance, ensures high dust removal efficiency, fully covers the dust removal range, prevents dust-containing gas from overflowing, and when the dust hood needs to be replaced independently, firstly loosens a quick-tightening valve of a connecting flange, and shakes a handle to enable the wind hood to move along a track to a working position without interference. If the overhaul range is large, the whole fan cover can be lifted away from the overhaul area by a workshop crane.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a be used for rolling mill dust removal to use dust excluding hood, includes dust excluding hood bellows top (1), its characterized in that: the bottom surface on dust excluding hood bellows top (1) is connected with bellows body (2), the surface of bellows body (2) is connected with housing (3), the surface of housing (3) is connected with dephosphorization water collection board (4), dust cover tuber pipe interface (5) have been seted up to the surface of bellows body (2).

2. The dust hood for the dust removal of the rolling mill according to claim 1, which is characterized in that: the bottom surface of the air box body (2) is connected with a bottom plate, and the top surface of the bottom plate is connected with the bottom surface of the housing (3).

3. The dust hood for the dust removal of the rolling mill according to claim 1, which is characterized in that: the phosphorus removal water collecting plate (4) is G-shaped, a collecting tank is arranged on the outer surface of the phosphorus removal water collecting plate (4), and the bottom surface of the bottom plate is connected with a moving wheel (6).

4. The dust hood for dedusting of the rolling mill according to the claim 3, is characterized in that: the moving wheels (6) are provided with two groups, each group comprises two moving wheels, the two moving wheels are respectively positioned on the left side and the right side of the bottom plate, and the outer surfaces of the moving wheels (6) are connected with moving tracks (7) in a sliding mode.

5. The dust hood for the dust removal of the rolling mill according to claim 1, which is characterized in that: the surface on dust excluding hood bellows top (1) is connected with upper portion lug (8), upper portion lug (8) are provided with two altogether, are located the left side and the right side of dust excluding hood bellows top (1) top surface respectively.

6. The dust hood for the dust removal of the rolling mill according to claim 1, which is characterized in that: the outer surface both sides of bellows body (2) are connected with side hangers (9), side hangers (9) are two totally and are located the left side and the right side of dust cover bellows body (2) surface respectively.