CN110755982A - Dust collector is used in production of steel-smelting furnace prefab - Google Patents

Abstract

The invention discloses a dust removal device for the production of steelmaking furnace prefabricated parts, comprising a stirring tank, a bag filter is arranged on one side of the stirring tank, and a first air chamber is fixedly installed on the top of the bag filter and the stirring tank. An air outlet is fixedly installed on the top of one side of the first air chamber, the air outlet is fixedly connected to the air inlet of the bag filter through a first pipe, an air inlet is opened at the bottom of the first air chamber, and the bottom of the air inlet slides A suction hood is installed, the suction hood is located above the stirring tank, and an organ cover is fixedly installed on one side of the suction hood, and the air outlet of the bag filter is fixedly connected with a second air chamber through a second pipe, and the first One side of the second air chamber is equidistantly arranged with a third pipe, and one end of the third pipe is fixedly connected with a water tank. The suction hood includes a connecting plate and a dust suction cover welded to the bottom of the connecting plate. The bottom is located at the bottom of the air inlet and is welded with a steel plate to improve the dust suction effect.

Description

A dust removal device for the production of prefabricated parts of a steelmaking furnace

technical field

The invention relates to the technical field of electric arc furnace cover production, in particular to a dust removal device for the production of steelmaking furnace prefabricated parts.

Background technique

An electric arc furnace is an electric furnace that smelts ores and metals at high temperatures produced by an electrode arc. When the gas discharge forms an arc, the energy is very concentrated, and the temperature of the arc zone is above 3000 °C. For metal smelting, the electric arc furnace is more flexible than other steelmaking furnaces, and can effectively remove impurities such as sulfur and phosphorus. The furnace temperature is easy to control, and the equipment occupies a small area.

In the production process of the electric arc furnace cover, since most of the components are dust materials, a large amount of smoke and dust will be generated during the mixing process, which will seriously deteriorate the air quality of the production workshop. Therefore, in the current electric arc furnace cover production line, usually A dust removal device will also be set up in the production workshop for dust removal. However, in the current dust removal device, the angle between the air suction port and the stirring tank is large, and the dust collection effect is not ideal, and the contact area between the air outlet of the dust collector and the water tank is small, and the filtration efficiency is low.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a dust removal device for the production of steel-making furnace prefabricated parts. A group of air chambers are arranged above the stirring tank, and a group of suction hoods are slidably connected at the bottom of the air chamber, so that the suction hood faces the stirring vertically during operation. It can improve the dust suction effect; set another group of air chambers at the air outlet, and set up multiple groups of air ducts on one side of the air chamber to lead to the water tank, so as to increase the contact area with the water tank and improve the filtration efficiency, so as to solve the problem of the above background technology. proposed question.

In order to achieve the above purpose, the present invention provides the following technical solutions: a dust removal device for the production of steelmaking furnace prefabricated parts, comprising a stirring tank, a bag filter is arranged on one side of the stirring tank, and the bag filter and the top of the stirring tank are fixed A first air chamber is installed, an air outlet is fixedly installed on the top of one side of the first air chamber, the air outlet is fixedly connected with the air inlet of the bag filter through a first pipe, and an inlet is opened at the bottom of the first air chamber. an air outlet, a suction hood is slidably installed at the bottom of the air inlet, the suction hood is located above the stirring tank, and an organ hood is fixedly installed on one side of the suction hood, and the air outlet of the bag filter is fixedly connected with a second pipe. The second air chamber, one side of the second air chamber is equidistantly arranged with third pipes, one end of the third pipe is fixedly connected with a water tank, and one side of the bottom of the water tank is fixedly connected to one side of the mixing tank through a fourth pipe.

Preferably, the suction hood includes a connecting plate and a suction hood welded to the bottom of the connecting plate.

Preferably, a steel plate is welded at the bottom of the first air chamber at the bottom of the air inlet, a chute is formed in the steel plate, and the connecting plate is in clearance fit with the chute.

Preferably, flanges are welded at both ends of the second pipe and the third pipe.

Preferably, supports are fixedly installed on both sides of the bottom of the first air chamber, and one side of the two sets of supports are respectively fixed and installed on one side of the outer wall of the stirring tank and the top of the bag filter.

Preferably, through holes are provided on both sides of the second air chamber at the connection positions of the second duct and the third duct, and a reinforcing ring is welded on one side of the through holes.

Compared with the prior art, the beneficial effects of the present invention are:

1. A set of air chambers are set above the mixing tank, and a group of suction hoods are slidably connected at the bottom of the air chamber, so that the suction hood faces the mixing tank vertically when it is working, so as to improve the dust collection effect;

2. A water pipe is connected between the water tank 11 and the mixing tank 1, and the water after vacuuming is used as the mixing water for the mixing material. On the one hand, it saves water resources, and more importantly, it can remove the component dust absorbed by the water. It is replenished into the mixture to ensure the proportioning accuracy of each component of the mixture, thereby improving the production quality of the electric arc furnace cover;

3. Set another group of air chambers at the air outlet, and set up multiple groups of air ducts on one side of the air chamber to lead to the water tank to increase the contact area with the water tank and improve the filtration efficiency.

Description of drawings

Fig. 1 is the front partial cross-sectional structural schematic diagram of the present invention;

Fig. 2 is the first wind chamber installation sectional structure schematic diagram of the present invention;

FIG. 3 is an enlarged structural schematic diagram of part A in FIG. 1 of the present invention.

In the figure: 1, mixing tank; 2, bag filter; 3, first air chamber; 4, air outlet; 5, first pipe; 6, air inlet; 7, suction hood; 701, connecting plate; 702, Vacuuming cover; 8. Second pipeline; 9. Second wind chamber; 10. Third pipeline; 11. Water tank; 12. Steel plate; 13. Chute; 14. Organ cover; 15. Flange; 16. Support ; 17, through hole; 18, strengthen the ring; 19, the fourth pipe.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1-3, the present invention provides a technical solution: a dust removal device for the production of steelmaking furnace prefabricated parts, comprising a stirring tank 1, a bag filter 2 is arranged on one side of the stirring tank 1, and the bag filter 2 is used for adsorption To deal with the smoke and dust generated in the production of the electric arc furnace cover; the first air chamber 3 is fixedly installed on the top of the bag filter 2 and the stirring tank 1, and the first air chamber 3 is set to provide a moving track and a ventilation device for the suction hood 7; An air outlet 4 is fixedly installed on the top of one side of the chamber 3, and the air outlet 4 is fixedly connected with the air inlet of the bag filter 2 through the first pipe 5. The bottom of the first air chamber 3 is provided with an air inlet 6, and the bottom of the air inlet 6 is slidably installed. The suction hood 7, the suction hood 7 is located above the mixing tank 1, and the suction hood 7 is set to slide to the top of the mixing tank 1, so as to improve the direct suction area when vacuuming and improve the adsorption effect; and one side of the suction hood 7 is fixedly installed with The organ cover 14 is provided with an organ cover 14 to seal the unobstructed part of the suction cover 7 in the air inlet 6 to prevent air leakage from affecting dust removal; the air outlet of the bag filter 2 is fixedly connected with a second air chamber 9 through a second pipe , set the second air chamber 9 and equidistantly array multiple groups of third air chambers 10 into the water tank 11, increase the contact area with the water tank, and improve the filtration efficiency; the second air chamber 9 is equidistantly arranged on one side of the third pipeline 10 , one end of the third pipe 10 is fixedly connected with a water tank 11, the bottom side of the water tank 11 is fixedly connected with the side of the stirring tank 1 through the fourth pipe 19, and a water pipe is connected between the water tank 11 and the stirring tank 1, and the water after vacuuming As the mixing water of the mixture, on the one hand, it saves water resources, and more importantly, it can replenish the dust of the components adsorbed by water into the mixture to ensure the proportioning accuracy of each component of the mixture, thereby improving the arc The build quality of the furnace cover.

Specifically, the suction hood 7 includes a connecting plate 701 and a suction hood 702 welded to the bottom of the connecting plate 701 .

Specifically, a steel plate 12 is welded at the bottom of the first air chamber 3 at the bottom of the air inlet 6, a chute 13 is formed in the steel plate 12, the connecting plate 701 is in clearance fit with the chute 13, and the connection plate 701 is arranged in clearance fit with the chute 13 to ensure that The stability of the sliding structure of the suction hood 7 at the bottom of the first air chamber 3.

Specifically, flanges 15 are welded at both ends of the second pipeline 8 and the third pipeline 10 , and the flanges 15 are provided to facilitate disassembly, assembly and cleaning of the pipelines.

Specifically, supports 16 are fixedly installed on both sides of the bottom of the first air chamber 3, one side of the two sets of supports 16 are fixedly installed on one side of the outer wall of the mixing tank 1 and the top of the bag filter 2 respectively, and the supports 16 are provided to fix the first air chamber 3. .

Specifically, through holes 17 are formed on both sides of the second air chamber 9 at the connection positions of the second duct 8 and the third duct 10, and a reinforcing ring 18 is welded on one side of the through hole 17, and the reinforcing ring 18 is provided. Increase the installation strength when the flange 15 is fixed.

Structural principle: A set of first air chambers 3 are set above the stirring tank 1, and a set of suction hoods 7 are slidably connected at the bottom of the first air chamber 3, so that the connecting plate 701 is slidably connected to the chute 13, and dust is vacuumed during operation. The cover is located just above the mixing tank 1. When it is not working, it is moved to the other side, which does not affect the cleaning and feeding of the mixing tank 1, and improves the dust collection effect;

One end of the air outlet 4 is connected to the second air chamber 9 through the first pipe 5, a plurality of groups of third pipe passages 10 are arranged in an equidistant array on one side of the second air chamber 9, and the third pipe 10 is communicated with the water tank 11 by a flange , increase the communication area with the water tank 11 and improve the filtration efficiency.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a dust collector is used in production of steel-smelting furnace prefab, includes agitator tank (1), its characterized in that: the air inlet device is characterized in that a bag-type dust collector (2) is arranged on one side of the stirring tank (1), a first air chamber (3) is fixedly arranged on the tops of the bag-type dust collector (2) and the stirring tank (1), an air outlet (4) is fixedly arranged on the top of one side of the first air chamber (3), the air outlet (4) is fixedly connected with an air inlet of the bag-type dust collector (2) through a first pipeline (5), an air inlet (6) is formed in the bottom of the first air chamber (3), an air suction cover (7) is slidably arranged on the bottom of the air inlet (6), the air suction cover (7) is positioned above the stirring tank (1), an organ cover (14) is fixedly arranged on one side of the air suction cover (7), a second air chamber (9) is fixedly connected with the air outlet of the bag-type dust collector (2) through a second pipeline (8), and third, third pipeline (10) one end fixedly connected with water tank (11), water tank (11) bottom one side is through fourth pipeline (19) and agitator tank (1) one side fixed connection.

2. The dust removing device for the production of the steel furnace preform as claimed in claim 1, wherein: the air suction hood (7) comprises a connecting plate (701) and a dust suction hood shell (702) welded at the bottom of the connecting plate (701).

3. The dust removing device for the production of the steel furnace preform as claimed in claim 2, wherein: the bottom of the first air chamber (3) is positioned at the bottom of the air inlet (6) and welded with a steel plate (12), a sliding groove (13) is formed in the steel plate (12), and the connecting plate (701) is in clearance fit with the sliding groove (13).

4. The dust removing device for the production of the steel furnace preform as claimed in claim 1, wherein: and flanges (15) are welded at two ends of the second pipeline (8) and the third pipeline (10).

5. The dust removing device for the production of the steel furnace preform as claimed in claim 1, wherein: supports (16) are fixedly arranged on two sides of the bottom of the first air chamber (3), and one sides of the two sets of supports (16) are fixedly arranged on one side of the outer wall of the stirring tank (1) and the top of the bag-type dust collector (2) respectively.

6. The dust removing device for the production of the steel furnace preform as claimed in claim 1, wherein: through holes (17) are formed in the two sides of the second air chamber (9) at the connecting positions of the second pipeline (8) and the third pipeline (10), and reinforcing circular rings (18) are welded on one sides of the through holes (17).

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