KR20000013475U - Foreign body removal device in degreasing solution - Google Patents

Abstract

The present invention is a foreign material removal device in degreasing solution that can effectively remove foreign materials in degreasing solution, especially foreign matters such as brush roll chips removed from brush rolls in degreasing equipment, which is an annealing furnace pretreatment facility of stainless steel cold rolling mill. It is about the provision of.

The present invention provides two filter tanks (A) (B) in which degreasing solution mixed with foreign matter from the degreasing brush tank (44) is selectively supplied through the return pipe (1) and the three-way valve (3), and each filter tank (A) (B) One side senses the pressure inside the tank to allow the solution to be supplied to one of the two tanks, while the other tank to which the solution is not supplied senses the differential pressure to cause an air blow to the tank internal filter 16. And a drain line 10 through which air blown foreign matters are discharged under each of the filter tanks A and B, and the screw is operated by the motor 27. It provides a debris removal device in the degreasing solution characterized by the configuration by connecting to the screw draining device having a 29).

Description

Foreign body removal device in degreasing solution

The present invention relates to a foreign material in the degreasing solution in an annealing furnace pretreatment facility of a stainless steel cold rolling mill bright annealing line, in particular, a debris removal device in a degreasing solution such as a brush roll chip detached from a brush roll.

In the degreasing equipment related to the present invention, as shown in FIG. 1, an alkaline degreasing solution is sprayed onto the strip S with a spray nozzle 46, and then the foreign matter and oil on the strip S are removed by rotating the brush roll 47. In this process, the chip of the brush roll 47 is separated and mixed with the solution to the degreasing solution tank 34 through the return line 45. Pumping and recirculating the degreasing solution containing such brush roll chips causes obstacles such as clogging of lines and nozzles. Therefore, in order to prevent this, the filter 49 in the box-type tank 48 in the middle of the return line is conventionally installed in the degreasing solution. The brush roll chip was removed. When the filter 49 is blocked by the brush roll chips 50, the solution overflows over the filter 49, and the degreasing solution including the brush roll chip into the degreasing solution tank 34 is removed. This mixing causes clogging of each nozzle, and frequent cleaning of the clogged filter 49 takes a lot of working time, thereby lowering productivity.

The present invention is to solve the above conventional problems, to provide two filter tanks that are operated alternately, and the other atmospheric filter tank of the solution filtering through one of the two filter tanks is the air blow during the waiting time It provides a debris removal device in degreasing solution that can perform a filter cleaning by the air filter and to remove debris from the degreasing solution by using another filter tank immediately waiting for a filter clogging. There is a purpose.

1 is a configuration diagram of a conventional apparatus;

2 is a plan view of the present invention,

Figure 3 is a perspective view of the present invention.

Explanation of symbols on the main parts of the drawings

1: Return pipe 2: Outlet piping line

3,3 ': 3-way valve 10: drain line

11 valve operation bar 12 air cylinder

14, 15: differential pressure detection device 16: filter

19: control panel 20: timer

23: solenoid valve 27: motor

28: reduction gear 29: screw right

32: Chip collection box 34: Degreasing solution tank

35: nozzle 38,39: sensor

40: filter lower outlet 41: chip outlet

44: degreasing brush tank 47: brush roll

50: brush roll chip A, B: filter tank

Hereinafter, with reference to the accompanying drawings, the technical contents of the present invention for achieving the above object will be described in detail.

The present invention is to install a three-way valve (3) at the end of the return pipe (1) connected to the lower side of the degreasing brush tank 44, as shown in Figure 2, Figure 3 through the three-way valve (3) A three-way valve (3) is connected to a pipe line (2) connected to one of the two filter tanks (A) and (B), for example into a filter tank (A), and connected to the lower outlet (5) of the filter tank (A). ') Is installed so that the solution is supplied to the degreasing solution tank 34 through it. The valve operation bar 11 for simultaneously operating the three-way valves 3 and 3 'is connected to the rod of the cylinder 12, and the cylinder 12 body is attached to the filter tank B body to fix the cylinder. (12) The three-way valve (3 ') (3) is switched to achieve the solution supply to the filter tank (B) in the expansion operation, and is installed to achieve the solution supply to the filter tank (A) in the reduction operation of the cylinder (12). In addition, as shown in the drawing, the sensor 38, 39 that detects the operation of the cylinder 12 is installed. Referring to the inside of the filter tank (A) shown in the cut state of the internal structure of the filter tank (A) (B), a filter 16 having a stainless steel mesh structure is installed inside the filter tank, the outer Inner cylinder with several nozzles 35 is installed in the tank, and an air line with an air solenoid valve 23 is connected to the left side of the drawing of the tank body, and a differential pressure sensing device 14 is installed at the lower part thereof to return it. A drain solenoid valve 25 is installed at the drain line 10 connected to the pipe 1 between the pipes 1 and the lower outlet 40 of the filter 16. The end of the drain line 10 is connected to the screw rain discharge device as shown, when explaining the configuration of the screw discharge device drained by the rotation of the screw right 29 by the motor 27 and the reduction gear 28 Brush roll chips discharged from the line 10 are pushed by the screw right 29 into the chip collection box 32 through the right chip discharge port 41, and the air in the screw discharge device is discharged to the air vent line ( 37) was installed and configured on one side.

In operation, the solution discharged through the return pipe (1) below the degreasing brush tank (44) is supplied into one filter tank (A) in the state shown, and the solution is supplied with the filter (A) in the filter tank (A). 16, the brush roll chips in the solution are removed and then supplied into the degreasing solution tank 34 through the outlet pipe line 2 through the 3-way valve 3 ', and the brush to the filter 16. When a large amount of roll chips are attached and the pressure in the filter tank A detected by the differential pressure sensing device 14 becomes greater than about, the cylinder 12 is extended to operate the three-way valves 3 and 3 '. Filtering is carried out in filter tank B by switching to sending solution to B). At this time, the movement of the valve operating bar 11 is detected by the detection sensor 38 to open the solenoid valve 23 for a period of several tens of seconds set in the timer 20 embedded in the control panel 19, and at the same time, the drain solenoid The valve 25 is opened and the motor 27 is operated. When the air supply line solenoid valve 23 is opened as described above, air is injected to the filter 16 through the nozzles 35 in the opposite direction to the filtering direction, and the brush roll chips attached to the inside of the filter fall off into the filter. In this way, the brush roll chips separated from the filter are moved through the drain line 10 through which the solenoid valve 25 is opened through the outlet 40 and into the screw draining device below. 27 is discharged into the chip collection box 32 with the solution through the chip outlet 41 by the rotation of the screw right 29 by the operation of the 27, and the filter 42 embedded in the chip collection box 32 is removed. The filtered solution is sent to the degreasing solution tank 34 through the flexible return hose 43. Furthermore, when the pressure in the filter tank B detected by the differential pressure detecting device 15 of the filter tank B in use becomes greater than about the cylinder 12, the solution is supplied to the filter tank A side again. On the filter tank B side, the brush roll chip removal operation is performed.

As described above, the present invention requires frequent filter box disassembly and filter cleaning when the filter is clogged, which requires a lot of time and manpower, and chips that have not been removed during overflow inside the box are degreasing solution tanks. Effectively eliminating the frequent mixing of the line and the nozzles to the inside, there is an effect that can increase the utilization rate and productivity of the relevant equipment.

Claims (1)

The degreasing solution mixed with foreign matter from the degreasing brush tank 44 provides two filter tanks A and B, which are selectively supplied through the return pipe 1 and the three-way valve 3, and each of the filter tanks A. (B) Differential pressure sensing device 14 to sense the internal pressure of the tank to allow the solution to be supplied to one of the two tanks, while the other tank to which the solution is not supplied is subjected to an air blow to the tank internal filter 16. (15), and the drain line (10) through which the air blown foreign matter is discharged under each of the filter tanks (A) and (B) to form a screw right (29) operated by the motor (27). A debris removal device in the degreasing solution, characterized in that the configuration by connecting to the screw discharge device having.