CN2216671Y

CN2216671Y - Spiral-flow feedwater mixer blender

Info

Publication number: CN2216671Y
Application number: CN 95203138
Authority: CN
Inventors: 黄为民; 史济春
Original assignee: Anyang Iron and Steel Co Ltd Henan Province
Current assignee: Anyang Iron and Steel Co Ltd Henan Province
Priority date: 1995-02-24
Filing date: 1995-02-24
Publication date: 1996-01-03
Anticipated expiration: 2005-02-24

Abstract

The utility model discloses a feedwater mixing device using the semi-dry process of a ladle liner to spray, which relates to the furnace body of a steel-smelting industry. The feedwater mixing device comprises a blending channel which passes through a sealing water circulating chamber. The feedwater mixing device is characterized in that a plurality of water feeding holes of rotational flows are arranged on the tube wall of the blending channel, and the water feeding holes penetrate to the sealing water circulating chamber; the water feeding holes of rotational flows are provided with prescribed incoming angles and normal angles; the incoming angles are 10 DEG to 60 DEG, and the normal angles are 45 DEG to 85 DEG. As the water feeding holes of rotational flows are arranged on the blending channel, water in the sealing water circulating chamber enters the blending channel, and then generates the rotational flows which are thoroughly mixed with dry matters. The utility model reduces resistance, raises spraying speed, enables bonding rate to enhance 30%, and enables lining life to increase.

Description

A kind of eddy flow feedwater blender

The utility model relates to makes steel the body of heater of industry, the feedwater mixing device of ladle liner semi dry gunning.

At present, the spray repair of steelmaking converter, electric furnace, ladle liner, the general spray repair method that adopts has three kinds: wet spraying; Flame gunning; Semi dry gunning.Semi dry gunning is a kind of spray repair method that extensively adopts in recent years.The key of semi dry gunning has two, one, the quality of gunning refractory; The 2nd, the equipment that spray repair is used.The quality of spray repair quality and the uniformity coefficient of batch mixing are closely related.For water, material are mixed, often adopt on the wall of the mixing passage that passes sealing water ring chamber and have 2-4 rows, 3-6 holes of every row, or the inclined hole angled with axis perpendicular to the mixing passage axis.Yet no matter be straight hole or inclined hole, the mixing effect of water and material is all undesirable, because mixing is insufficient, the spray repairing lance for tilting internal resistance is increased, and spray repair speed is low, and the time is long, and spray repair is of poor quality, and the bonding rate is low, not anti-erosion.

The purpose of this utility model provides a kind of new feedwater blender that is used for semi dry gunning, can make water and expect to reach better spray repair effect at abundant mixing of mixing stage.

The purpose of this utility model realizes in the following way, a kind of eddy flow feedwater blender that is used for semi dry gunning, comprise the mixing passage that passes sealing water ring chamber, it is characterized in that having on the mixing passage tube wall by sealing water ring chamber several eddy flows that run through sealing water ring chamber and give the water hole, described eddy flow has certain incident angle and normal direction angle to the water hole, and incidence angle is meant the floor projection angle of eddy flow feedwater centerline hole and mixing passage axis; The normal direction angle is meant the radially angle of eddy flow feedwater centerline hole and mixing channel cross-section.It is 5-30mm that eddy flow is given the diameter in water hole, around mixing passage circumference 2-10 rows, every row 2-10 holes.Its incident angle is 10 °-60 °, and the normal direction angle is 45 °-85 °.

The utility model is compared with prior art, has following advantage, give the water hole owing on the mixing passage, have eddy flow, water in the sealing water ring chamber is entered produce behind the mixing passage and revolve and the abundant mixing of gunning refractory, reduced the resistance in the spray repairing lance for tilting, improved spray repair speed, made the bonding rate improve 30%, lining durability is improved.

Describe the utility model in detail below in conjunction with following drawings and Examples.

Fig. 1 is an eddy flow feedwater blender schematic diagram.

Fig. 2 is the expanded view of mixing passage among Fig. 1.

The sealing water ring chamber 2 of eddy flow feedwater blender is connected with oral siphon 4, and mixing passage 1 passes sealing water ring chamber 2, and inlet and conveying pipeline connection, and outlet links to each other with spray repairing lance for tilting.Evenly arrange 2-10 rows around circumference on mixing passage tube wall, 2-10 eddy flows of every row are given water hole 3, and its diameter is 5-30mm, and this hole runs through sealing water ring chamber.The course of work of the present utility model is, the spray repair siccative is sent in the mixing passage with 0.3-0.5MPa compressed air, meanwhile, 0.35 the water of-0.5MPa pressure, enter sealing water ring chamber 2 through oral siphon 4, give water hole 3 by eddy flow again, enter mixing passage 1, behind the abundant mixing of water and material,, body of heater, ladle liner are carried out spray repair by the spray repairing lance for tilting ejection.

Claims

1, a kind ofly is used to make steel the body of heater of industry, the eddy flow feedwater blender of ladle liner semi dry gunning, comprise the mixing passage (1) that passes sealing water ring chamber (2), it is characterized in that: on the tube wall of the mixing passage (1) that passes through sealing water ring chamber (2), have several eddy flows that run through sealing water ring chamber (2) and give water hole (3), described eddy flow is given water hole (3), incident angle and normal direction angle with regulation, incident angle are meant that eddy flow gives the center line in water hole (3) and the floor projection angle of mixing passage (1) axis; The normal direction angle is meant that eddy flow gives the center line in water hole (3) and the radially angle in mixing passage cross section.

2, eddy flow feedwater blender according to claim 1 is characterized in that: have 2-10 rows on the described mixing passage tube wall, and 2-10 of every rows, diameter is that the eddy flow of 5-30mm is given the water hole.

3, eddy flow feedwater blender according to claim 1, it is characterized in that: it is 10 °-60 ° that eddy flow is given the incidence angle in water hole, and normal angle is 45 °-85 °.