KR100382318B1 - Strip salt solution cleaning device with spray nozzle cleaning - Google Patents

Abstract

The present invention is a nozzle and head generated in the process of immersing the strip into the salt bath to remove the oxidized scale of the strip surface passed through the annealing furnace, and then sprayed by the cleaning circulating water to rinse the salt solution on the strip. The present invention relates to a strip salt solution cleaning device that also serves to clean the spray nozzle to prevent clogging.

The present invention provides a rinse circulating water to the first and second salt rinse tanks installed at the rear of the salt bath tank, a control unit for controlling the operation of the cylinders installed at both salt rinse tanks, and spray heads and nozzles in both salt rinse tanks. A circulating water supply unit for supplying, an air supply unit for supplying air to air heads and air nozzles in both salt rinsing tanks, and an air supply unit connected to the air supply unit to operate the cylinders under the control of the controller. And a link portion coupled to the spray head and the nozzle.

Description

Strip salt solution cleaner with spray nozzle cleaning

The present invention relates to a strip salt solution cleaning device that also serves as a spray nozzle cleaning, and in particular, to remove the oxidation scale of the strip surface formed in the annealing furnace after passing the cold rolled material coil in the annealing pickling line of the stainless cold rolling mill. After spraying the strip into the salt bath, clean the spray nozzle to prevent clogging of the nozzle and head caused by spraying with the cleaning circulating water to rinse the salt solution on the strip. It relates to a strip salt solution cleaning device.

FIG. 1 is a conventional salt solution cleaning apparatus attached to a strip, and FIG. 2 is a cutaway cross-sectional view of the portion A of FIG. 1, which strips into a salt bath tank 10 to remove an oxidized scale of the strip surface formed in the annealing furnace. (20), wherein the strip passing through the salt rinse tank (30) to rinse the salt solution (solution for peeling the oxidized scale with an alkaline compound) 12 on the strip (20) ( The rinse circulating water is pumped through the pump 32 operated by the motor 31 to the pump 20, and is sent to each spray head 34 via the supply line 33, and the spray nozzle 35 at the spray head 34. Spraying to both sides of the strip 20 through the) to remove the salt solution (12).

In the conventional salt solution cleaning method, as shown in FIG. 2, when the fine salt sludge 12a in the rinse circulation water blocks the spray head 34 and the nozzle 35, the entire spray head 34 is rinsed. As the pipes of the spray head 34 and the nozzle 35 are narrowed due to the clogging caused by the impossibility of water circulation, the rinsing operation is not performed smoothly, and the spray head 34 and the nozzle 35 in which the clogging has occurred are caused. There was a problem of deterioration of workability and productivity due to the decomposition of.

The present invention has been devised to solve the above problems, and the rinse spray nozzle for rinsing the rinse circulating water spraying the salt solution on the strip and the spray nozzle cleaning to prevent the blockage of the nozzle to achieve a smooth rinsing operation The purpose is to provide a strip salt solution cleaning device.

1 is a salt solution cleaning device attached to a conventional strip,

2 is a cross-sectional view of the cut portion A of FIG.

3 is an overall configuration diagram of a strip salt solution cleaning device also serves as a spray nozzle cleaning according to the present invention,

FIG. 4 is a configuration diagram of one side salt rinsing tank in the strip salt solution cleaning device serving as the spray nozzle cleaning shown in FIG.

Figure 5 is an exploded perspective view for explaining the nozzle coupling of the air head and the spray head in the present invention.

<Explanation of symbols for the main parts of the drawings>

10: salt bath tank, 20: strip,

50: the first salt rinse tank, 60: the second salt rinse tank,

51, 52, 53, 61, 62, 63: cylinder, 60a: spray head,

60b: spray nozzle, 70: controller,

71: timer, 72: sensor,

87: shut open valve, 88: sludge removal valve,

92a, 92b: horizontal moving bar, 93: rotary link,

102: air solenoid valve, 103: air head,

103a: air nozzle, 104: air flexible hose

Spray heads are provided on both sides of the strip through the salt rinsing tank to pass the strip into the salt bath tank to remove the oxidized scale formed on the surface to achieve the above object. Injecting the rinse circulating water through the nozzle, the first and second salt rinse tanks provided at the rear of the salt bath tank, the control unit for controlling the operation of the cylinders provided in the two salt rinse tanks, the both salt rinse A circulating water supply unit for supplying rinsing circulating water to the spray head and the nozzle in the tank, an air supply unit for supplying air to the air head and the air nozzles in both salt rinsing tanks, and connected to the air supply unit under control of the controller Operation of the cylinder couples the air head and air nozzle to the spray head and nozzle Provided is a strip salt solution cleaning device that combines spray nozzle cleaning with a link portion.

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

3 is an overall configuration diagram of a strip salt solution cleaning device serving as a spray nozzle cleaning according to the present invention, FIG. 4 is a configuration diagram of one side salt rinsing tank in the strip salt solution cleaning device having a spray nozzle cleaning shown in FIG. Figure 5 is an exploded perspective view for explaining the nozzle coupling of the air head and the spray head in the present invention.

Referring to this, the washing apparatus according to the present invention is divided into first and second salt rinse tanks installed in the back of the salt bath tank, the control unit for controlling the operation of the cylinders installed in the two salt rinse tank, and the two salt rinse A circulating water supply unit for supplying rinsing circulating water to the spray head and the nozzle in the tank, an air supply unit for supplying air to the air head and the air nozzles in both salt rinsing tanks, and connected to the air supply unit under control of the controller Operation of the cylinder consists of a link unit for coupling the air head and the air nozzle to the spray head and the nozzle.

As shown in FIG. 3, the first and second salt rinsing tanks 50 and 60 are provided with cylinders 51, 52, 53; 61, 62, and 63, respectively, on upper and side surfaces thereof. The 51, 52, 53; 61, 62, and 63 are alternately operated by the first and second salt rinsing tanks 50 and 60 through a timer 71 connected to the controller 70 of the controller. have.

Since the first and second salt rinsing tanks 50 and 60 have the same structure, the first and second salt rinsing tanks 50 and 60 will be described based on the second salt rinsing tank 60 (hereinafter, referred to as a salt rinsing tank).

As shown in FIG. 4, the circulating water supply unit collects the rinse circulating water collected at the lower portion of the salt rinsing tank 60 having a downward slope to the collection tank 82 through the return line 81, and then the suction line 83. It is pumped by the operation of the pump 85 by the drive of the motor 84 through the supply line 86 is supplied to the spray head 60a and the nozzle 60b installed in the salt rinse tank 60.

As shown in FIG. 5, the spray nozzle 60b is recessed in its outlet portion to facilitate insertion of the air nozzle 103a described later.

A rinse circulating water supply shut open valve 87 is provided at the front end of the supply line 86, and a sludge removal valve 88 is installed at the front end of the shut open valve 87, and the sludge removal valve 88 is provided. The sludge collection tank 88a is provided below.

The shut open valve 87 and the sludge removal valve 88 are connected to the controller 70 so that when one of the two valves is opened, the other valve is automatically closed.

The link part is connected to the rods of the cylinders 61 and 62, the brackets (91a) (91b) bent in a predetermined shape is connected, the bracket (91a) is fixed to the horizontal movement bar (92a), the other cylinder 63 ) Is a front end bent portion of the horizontal moving bar (92b) is connected to the rod of the cylinder (63).

One end of the rotary link 93 fixed to the salt rinsing tank 60 through the central rotary shaft 93a is coupled to the horizontal moving bar 92a through a connecting shaft 93b, and the rotary link 93 The other end of is connected to the air line 101 through the flexible air hose 104 of the air supply unit to be described later.

The air supply unit is provided with an air solenoid valve 102 connected to the controller 70 in front of the air line 101, and between the connecting shaft of the link portion (in the salt rinsing tank), as shown in FIG. The head 103 is connected (welding, etc.), and a plurality of air nozzles 103a are formed in the air head 103.

In addition, circumferential guide grooves 60c are formed on both sides of the salt rinsing tank 60 so that the rotary link 93 is easily rotated when the rotary link 93 is rotated about the rotary shaft 93a. In order to prevent the water from scattering to the outside, a sealing rubber cloth (60d) cut in its center portion is attached to the guide groove (60c) by fixing means (bolts, etc.) not shown.

The horizontal movement bar 92a moves to the right side when the cylinder 61 is operated, and the front end bent portion of the horizontal movement bar 92a is installed at the upper end side of the salt rinsing tank 60. 5, the air nozzle 103a of the air head 103 is fitted in close contact with the nozzle 60b of the spray head 60a, and the shut open valve 87 Is shut off and the sludge removal valve 88 and air solenoid valve 102 are opened.

Hereinafter, the operation of the present invention having the configuration as described above.

The two salt rinsing tanks 50 and 60 work alternately for a predetermined time by the timer 71 of the controller 70, that is, when one salt rinsing tank is rinsing, the other salt rinsing tank of the spray head 60a The nozzle 60b is freshing.

In the salt rinsing tank 60 as shown in FIG. 4, the rinse circulating water through the circulating water cooling unit washes the strip 20 passing through the salt rinsing tank 60 through the spray head 60a and the nozzle 60b. (At this time, the rod of the cylinder is drawn out of the first salt rinsing tank and flashing is performed on the spray head and the nozzle.) At this time, the horizontal bar (92a) (92b) is the rod of the cylinder (61) It is a state which does not move left and right in the state which is not drawn out, and the air solenoid valve 102 is closed.

In this state, the rinse circulating water collected in the collection tank 82 through the return line 81 at the inner bottom of the salt rinsing tank 60 is pumped by the pump 85 connected to the suction line 83 by the motor 84. The rinse circulation water supply shut-off valve 87 is opened and the sludge removal valve 88 is closed due to the non-sensing of the detection sensor 72. The spray is sprayed onto the strip 20 through each spray head 60a and the nozzle 60b to wash the salt solution on the strip 20.

After a predetermined time elapsed by the timer 71 of the controller 70, the cylinders 61, 62, 63 of the salt rinsing tank 60 are operated to withdraw the rod (at this time, in the first salt rinsing tank). When the strip cleaning operation is performed through the spray head and the nozzle while the rod of the cylinder is not drawn out), the horizontal movement bar 92a moves to the right side and is detected by the detection sensor 72, thus rotating link 93 ), The air head 103 is moved to the left so that the air nozzle 103a is male and female coupled to the spray nozzle 60b (see FIG. 5).

At this time, the shutoff valve 87 is blocked by the controller 70 and the sludge removal valve 88 and the air solenoid valve 102 are opened to open the flexible air hose 104 and the air via the air line 101. Air is injected into the spray nozzle 60b through the head 103 and the air nozzle 103a to flash the spray nozzle 60b and the spray head 60a to remove fine salt sludge therein.

After a certain period of time set in the timer 71 of the controller 70, the salt sludge removed by the above-described flashing operation is collected in the sludge collection tank 88a through the sludge removal valve 88.

As described above, according to the present invention, it is possible to perform the salt solution washing and the flashing work on the spray head and the nozzle alternately attached to the strip through both salt rinsing tanks. This is prevented in advance and there is an effect of improving workability and thus productivity by an easy rinsing operation.

In the above description, the technical idea of the strip salt solution cleaning device serving as the spray nozzle cleaning according to the present invention has been described together with the accompanying drawings, which illustrate the best embodiment of the present invention by way of example and not limit the present invention.

In addition, it is obvious that any person skilled in the art can make various modifications and imitations without departing from the scope of the technical idea of the present invention.

Claims (3)

Pass the strip into a salt bath to remove the oxidized scale formed on its surface, and spray rinse water through spray heads and nozzles on both sides of the strip through the salt rinse tank to clean the salt solution from the strip. In that, First and second salt rinse tanks installed at the rear of the salt bath tank; A control unit for controlling the operation of the cylinders installed in both salt rinse tanks; A circulation water supply unit for supplying rinse circulation water to the spray heads and the nozzles in both salt rinsing tanks; An air supply unit for supplying air to air heads and air nozzles in both salt rinsing tanks; Strip salt solution cleaning device combined with the spray nozzle cleaning, characterized in that it comprises a link portion connected to the air supply unit and the air head and the air nozzle coupled to the spray head and the nozzle by the operation of the cylinder under the control of the controller. . The apparatus of claim 1, wherein the control unit comprises a controller to which a timer is connected, a horizontal movement bar of the link unit, and a sensing sensor sensed. The air supply unit of claim 1 or 2, wherein the air supply unit comprises: an air solenoid valve connected to the controller at an air line front end; an air head connected between a connecting shaft of the link unit; and a plurality of air nozzles formed on the air head; And a flexible salt hose installed between the rotary link and the air line.