CN211199415U

CN211199415U - V-shaped air knife and device for cleaning surface water stain oxidation by copper strip adopting same

Info

Publication number: CN211199415U
Application number: CN201922187960.4U
Authority: CN
Inventors: 张卫; 陈清香; 张锋; 孔令豪; 王婷; 胡盼龙; 冯茜; 李晓博; 刘杰锋; 李鑫; 刘坛
Original assignee: Shanxi Chunlei Cuprum Co ltd
Current assignee: Shanxi Chunlei Cuprum Co ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-08-07
Anticipated expiration: 2029-12-09

Abstract

The utility model relates to a controlling means of water mark oxidation appears in copper strip pickling, cleaning process surface, specifically is a device of water mark oxidation is washd to the copper strips of V type air knife and adoption this air knife. A device for cleaning surface water stain oxidation of a copper strip comprises a passivation box, a squeezing roller, a secondary squeezing roller or a 3M millennium roller, a V-shaped cold air knife assembly and a hot drying box which are sequentially arranged on a production line; the V-shaped cold air knife assembly is a pair of V-shaped air knives which are arranged in parallel up and down; the pair of V-shaped air knives are spaced at a certain interval, and the V-shaped edges protruding outwards are opposite to the moving direction of the strip material. The utility model discloses to the crowded dry roller or the crowded not dry of 3M thousand years roller appear in the copper strips cleaning process that thickness is 0.5mm to 2.5mm, there is residual moisture scheduling problem on the strip surface, solve the oxidation of copper strips surface watermark through installing this device.

Description

V-shaped air knife and device for cleaning surface water stain oxidation by copper strip adopting same

Technical Field

The utility model relates to a controlling means of water mark oxidation appears in copper strip pickling, cleaning process surface, specifically is a device of water mark oxidation is washd to the copper strips of V type air knife and adoption this air knife.

Background

Along with the gradual and fierce market competition of the copper strip, new requirements are provided for reducing the production cost of the copper strip and improving the surface quality of a product, however, in the cleaning of the copper strip with the thickness of 0.5mm to 2.5mm, the water stain on the surface of the copper strip is oxidized due to the squeezing problem, the cost problem of a 3M millennium roller and the drying problem. The oxidation of the water stains on the surface of the copper strip directly affects the use and processing of downstream customers, so that the control of the oxidation of the water stains on the surface of the copper strip is particularly important.

In the copper strip pickling process, a series of treatment processes such as degreasing cleaning → cold water cleaning → pickling treatment → brush box brushing → hot water washing → passivation treatment → drying are carried out to remove oil stains, oxidation and other residues on the surface of the strip. In the process of passivation → drying, the 3M millennium roller or the wringing roller used for producing 0.5mm-2.5mm cannot effectively remove the moisture on the surface of the strip, the 3M millennium roller has higher cost, and the 3M millennium roller is easy to corrode and damage in the production process, so that the problem of oxidation of the water stains on the surface of the strip is easily caused.

Disclosure of Invention

The utility model provides a V type air knife and adopt the device of this air knife's copper strips cleaning surface water mark oxidation for solving the technical problem that present thickness is 0.5mm to 2.5 mm's copper strips surface water mark oxidation is difficult to control.

V type air knife adopts following technical scheme to realize: the utility model provides a V type air knife, V type air knife is one end opening one end and seals and inside is the structure of cavity, the projection of V type air knife at the horizontal plane is the V type, and it has a plurality of air outlet that is horizontal arrangement to open along the V type limit of outside salient.

One end of the opening of the V-shaped air knife is connected with an external air source, and an air outlet formed on the protruded V-shaped edge is used for blowing out cold air outwards.

The device for the oxidation of the water stain on the surface of the copper strip cleaning adopts the following technical scheme: a device for cleaning surface water stain oxidation of a copper strip comprises a passivation box, a squeezing roller, a secondary squeezing roller or a 3M millennium roller, a V-shaped cold air knife assembly and a hot drying box which are sequentially arranged on a production line; the V-shaped cold air knife assembly is a pair of V-shaped air knives which are arranged in parallel up and down; the pair of V-shaped air knives are spaced at a certain interval, and the V-shaped edges protruding outwards are opposite to the moving direction of the strip material.

The pair of V-shaped air knives are arranged at intervals up and down, the strip passes through the middle of the pair of air knives, the moving direction of the strip is opposite to the V-shaped vertex angle, and thus, the air outlet formed on the protruded V-shaped edge can blow air flow to the surface of the strip; in combination with the hot oven, cleaning and drying of the moisture on the surface of the strip can be facilitated.

Furthermore, the distance between the passivation box and the drying box is not more than 1 meter, and the effect is optimal; the distance between the upper surface and the lower surface of the V-shaped cold air knife and the surface of the strip is not more than 30mm, and the effect is optimal.

Furthermore, the air knife is made of stainless steel, is closed in a precise mode, is driven by the vortex fan, and is resistant to corrosion and high temperature and long in service life.

Furthermore, the contact surface of wind and the surface of the strip is increased by the V-shaped wind knife, the oblique wind blowing angle is about 120 degrees (115-130), water is removed from corners, the area is small, and water is not easy to remain.

The utility model discloses an adjust the frock, the method is simple, and easy operation is carried out, is suitable for and promotes copper and copper alloy (thick) strip pickling process.

Drawings

FIG. 1 is a schematic view of a device for cleaning surface water stain oxidation by copper strip according to the structure of the present invention.

FIG. 2 is a schematic view of installation of a V-shaped cold air knife.

Fig. 3 is a schematic structural view of a V-shaped air knife.

Fig. 4 is a sectional view a-a in fig. 3.

1-strip, 2-passivation box, 3-drying roller, 4-secondary drying roller or 3M thousand year roller, 5-V type cold air knife combination, 6-hot drying box, 7-V type air knife and 8-air outlet.

Detailed Description

As shown in fig. 2 to 4, the V-shaped edge of the V-shaped air knife protruding outward from the middle thereof is in a closed structure, and the longitudinal section thereof is triangular; the air outlets are formed on the triangular top surfaces (sides) and are sequentially and horizontally arranged along the whole top surface (as shown in fig. 4). The V-shaped air knife is of a square tubular structure bent into a V shape, one end of the square tube is open, the other end of the square tube is closed, and the protruding side of the square tube is made into a triangular structure, so that air flow concentration is promoted, and the force of air flow is enhanced.

The utility model discloses to the crowded dry roller or the crowded not dry of 3M thousand years roller appear in the copper strips cleaning process that thickness is 0.5mm to 2.5mm, there is residual moisture scheduling problem on the strip surface, solve the oxidation of copper strips surface watermark through installing this device.

1. The V-shaped cold air knife has the advantages that the moving directions of the V-shaped cold air knife and the strip are opposite, the distance between the upper surface and the lower surface of the cold air knife and the surface of the strip is not more than 30mm, and the effect is optimal;

2. tool installation sequence: passivating → drying roller → V-shaped cold air knife → hot drying box or passivating → drying roller → 3M roller for thousand year → V-shaped cold air knife → hot drying box;

3. the rated power of an air cooler connected with an air knife is 7.5KW, the maximum air pressure is 43Kpa, and the maximum air volume is 8.8M 3/min;

4. the drying oven is heated, the temperature is controlled to be 75-85 ℃, and the effect is optimal.

Claims

1. The utility model provides a V type air knife, its characterized in that, V type air knife (7) are one end opening one end and seal and inside is the structure of cavity, V type air knife (7) are the V type in the projection of horizontal plane, and open along the V type limit that outwards stands out has a plurality of air outlet (8) that are horizontal arrangement.

2. The V-shaped air knife according to claim 1, characterized in that the V-shaped edge of the V-shaped air knife (7) protruding outwards from the middle part is in a closing-up structure, and the longitudinal section of the V-shaped air knife is triangular; the air outlet (8) is arranged on the top edge of the triangle.

3. The V-shaped air knife according to claim 2, characterized in that the V-shaped edge of the V-shaped air knife (7) is at an angle of 115-130 degrees; the V-shaped air knife (7) is made of stainless steel.

4. A device for cleaning surface water stain oxidation of a copper strip is characterized by comprising a passivation box (2), a squeezing roller (3), a secondary squeezing roller or a 3M millennium roller (4), a V-shaped cold air knife assembly (5) and a hot drying box (6) which are sequentially arranged on a production line; the V-shaped cold air knife assembly (5) is a pair of V-shaped air knives (7) as claimed in any one of claims 1-3 arranged in parallel up and down; the pair of V-shaped air knives (7) are spaced at a certain interval, and the V-shaped edges protruding outwards are opposite to the moving direction of the strip.

5. The device for cleaning the surface of the copper strip and oxidizing the water mark as claimed in claim 4, characterized in that the distance between the passivation box (2) and the thermal drying box (6) is not more than 1 m; the distance between the upper surface and the lower surface of the pair of V-shaped air knives (7) and the surface of the strip material is not more than 30 mm; the V-shaped air knife (7) is connected with a vortex fan.