CN214830488U

CN214830488U - Slag-discharging water-quenching caisson of continuous annealing galvanizing unit

Info

Publication number: CN214830488U
Application number: CN202120002399.2U
Authority: CN
Inventors: 刘志恒; 赵永平; 贺海清; 王亚东; 迟永超
Original assignee: Hegang Leting Steel Co Ltd
Current assignee: Hegang Leting Steel Co Ltd
Priority date: 2021-01-04
Filing date: 2021-01-04
Publication date: 2021-11-23
Anticipated expiration: 2031-01-04

Abstract

The utility model relates to a slag-discharging water-quenching caisson of a continuous annealing galvanizing unit, which belongs to the technical field of cold rolling continuous annealing galvanizing units in the metallurgical industry. The technical scheme is as follows: the sink roll (2) is arranged in a sink roll box body (7), the top of the sink roll box body (7) is provided with a strip steel inlet and outlet matched with the sink roll (2), and the strip steel inlet and outlet are respectively provided with a water quenching nozzle (6) facing the strip steel; the bottom of the sink roll box body (7) is in an inclined state, the bottom of the sink roll box body (7) is connected with the top of the collecting chamber (4) through the gate valve (3), the bottom of the collecting chamber (4) is provided with the flap valve (5), the side surface of the collecting chamber (4) is provided with the drainage pipeline (10), and the drainage pipeline (10) is provided with the drainage valve (9). The beneficial effects are that: the device can clean impurities such as zinc slag and the like in the caisson under the condition that the unit does not stop, has compact structure, is suitable for the unit with narrow space of the water quenching section, has low equipment cost and maintenance cost, and reduces the labor intensity of workers.

Description

Slag-discharging water-quenching caisson of continuous annealing galvanizing unit

Technical Field

The utility model relates to a slag-discharging water-quenching caisson of a continuous annealing galvanizing unit, which belongs to the technical field of cold rolling continuous annealing galvanizing units in the metallurgical industry.

Background

In the production process of cold rolling annealing and galvanized products, quenching is required during annealing/galvanizing. In a box body of a sink roll in a quenching section, impurities such as zinc oxide scale, zinc dross, iron scale and the like are accumulated for various reasons, the impurities have higher density than water and are not easy to be discharged out of the sink box, and the impurities are accumulated for a long time, so that the surface of a product is greatly damaged, and quality problems such as punch marks, scratches and the like are caused.

The quality problem can be solved in a short time by stopping the unit and then emptying the caisson for cleaning, but the start and stop of the unit needs long time, so that the brought-out product and the production cost are high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sediment shrend caisson of even moving back galvanizing unit can be under the condition that the unit does not stop, impurity such as the zinc dross of clearance caisson in, the problem that exists among the solution background art.

The technical scheme of the utility model is that:

a slag-discharging water-quenching caisson of a continuous annealing galvanizing unit comprises a sink roll, a gate valve, a collection chamber, a flap valve, water-quenching nozzles, a sink roll box body, a drain valve and a drain pipeline, wherein the sink roll is arranged in the sink roll box body; the bottom of the sink roll box body is in an inclined state, the bottom of the sink roll box body is connected with the top of the collecting chamber through a gate valve, a flap valve is arranged at the bottom of the collecting chamber, a drainage pipeline is arranged on the side face of the collecting chamber, and a drainage valve is arranged on the drainage pipeline.

The collection chamber is located below the sink roll box.

The drain line is near the bottom of the collection chamber.

And a manhole is arranged on one side of the sink roll box body.

The gate valve and the flap valve are respectively an electric gate valve and an electric flap valve.

Adopt the utility model discloses, debris such as zinc dross in the sink roll box body and demineralized water pass through the gate valve and get into the collection room of below, and demineralized water will arrange to the pit through the drain pipe, and debris impurities such as zinc dross will discharge in the waste bin or the waste material fill that the below was prepared through electronic flap valve.

The utility model has the advantages that: the device can clean impurities such as zinc slag and the like in the caisson under the condition that the unit does not stop, has compact structure, is suitable for the unit with narrow space of the water quenching section, has low equipment cost and maintenance cost, and reduces the labor intensity of workers.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic view of the gate valve of the present invention in a closed state;

FIG. 3 is a schematic view of the open state of the gate valve of the present invention;

fig. 4 is a schematic view of the opening state of the flap valve of the present invention;

in the figure: the device comprises a strip steel 1, a sink roll 2, a gate valve 3, a collection chamber 4, a flap valve 5, a water quenching nozzle 6, a sink roll box body 7, a manhole 8, a drain valve 9 and a drainage pipeline 10.

Detailed Description

The invention will be further explained by way of example with reference to the accompanying drawings.

Referring to attached drawings 1-4, the slag-discharging water quenching caisson of the continuous annealing galvanizing unit comprises a sink roll 2, a gate valve 3, a collection chamber 4, a flap valve 5, a water quenching nozzle 6, a sink roll box body 7, a drain valve 9 and a drain pipeline 10, wherein the sink roll 2 is arranged in the sink roll box body 7, the top of the sink roll box body 7 is provided with a strip steel inlet and outlet matched with the sink roll 2, and the strip steel inlet and outlet are respectively provided with the water quenching nozzle 6 facing strip steel; the bottom of the sink roll box body 7 is in an inclined state, the bottom of the sink roll box body 7 is connected with the top of the collecting chamber 4 through the gate valve 3, the bottom of the collecting chamber 4 is provided with a flap valve 5, the side surface of the collecting chamber 4 is provided with a drainage pipeline 10, and the drainage pipeline 10 is provided with a drainage valve 9.

In this embodiment, referring to fig. 1-4, the gate valve 3 and the flap valve 5 are respectively an electric gate valve and an electric flap valve, the sink roll box 7 contains the sink roll 2, the strip steel 1 and the desalted water, one side of the sink roll box 7 is provided with a manhole 8, the bottom of the sink roll box 7 is inclined, so that impurities such as zinc dross are intensively precipitated at the opening of the electric gate valve 3 below, and when the electric gate valve 3 is slowly opened, the impurities are brought into the collection chamber 4 below by water flow. After the electric gate valve 3 is slowly closed, the electric drain valve 9 is started, desalted water is drained to the pit through the drain pipeline 10, and impurities are left at the bottom of the collection chamber 4, namely above the electric flap valve 5. After the electric drain valve 9 is closed, the electric flap valve 5 is opened to discharge the impurities and the residual desalted water into a waste bucket or a waste hopper prepared below, and then closed.

Claims

1. A slag-discharging water quenching caisson of a continuous annealing galvanizing unit is characterized in that: the submerged roller type steel strip quenching device comprises a submerged roller (2), a gate valve (3), a collection chamber (4), a flap valve (5), a water quenching nozzle (6), a submerged roller box body (7), a drain valve (9) and a drain pipeline (10), wherein the submerged roller (2) is arranged in the submerged roller box body (7), a strip steel inlet and outlet matched with the submerged roller (2) are formed in the top of the submerged roller box body (7), and the strip steel inlet and outlet are respectively provided with the water quenching nozzle (6) facing the strip steel; the bottom of the sink roll box body (7) is in an inclined state, the bottom of the sink roll box body (7) is connected with the top of the collecting chamber (4) through the gate valve (3), the bottom of the collecting chamber (4) is provided with the flap valve (5), the side surface of the collecting chamber (4) is provided with the drainage pipeline (10), and the drainage pipeline (10) is provided with the drainage valve (9).

2. The slag-discharging water-quenching caisson of a continuous annealing galvanizing unit as claimed in claim 1, wherein: the collecting chamber (4) is positioned below the sink roll box body (7).

3. The slag-discharging water-quenching caisson of a continuous annealing galvanizing unit as claimed in claim 1, wherein: the drainage pipeline (10) is close to the bottom of the collection chamber (4).

4. The slag-discharging water-quenching caisson of a continuous annealing galvanizing unit as claimed in claim 1, wherein: and a manhole (8) is arranged on one side of the sink roll box body (7).

5. The slag-discharging water-quenching caisson of a continuous annealing galvanizing unit as claimed in claim 1, wherein: the gate valve (3) and the flap valve (5) are respectively an electric gate valve and an electric flap valve.