An anti-pollution device applied to an emulsion circulating filtration system

Abstract

The application relates to an anti-pollution device applied to an emulsion circulating filtration system, which comprises a filtering bin, a depositing bin and a stabilizing bin; the filtering bin is divided into a first cavity and a second cavity by a first baffle; the first cavity is provided with a liquid inlet; the second cavity is provided with a flow guide pipe at the bottom and communicated with the depositing bin; the depositing bin is divided into a third cavity and a fourth cavity by a second baffle, and the fourth cavity is provided with an opening at the bottom and communicated with the stabilizing bin; the stabilizing bin is provided with a first liquid passage and a second liquid passage connected with the opening at the bottom of the fourth cavity; the first liquid passage is communicated with a stabilizing cavity in the stabilizing bin through a spiral channel; the second liquid passage is communicated with the stabilizing cavity through a movable pipe; and the stabilizing cavity is provided with a liquid outlet communicated with the outside. The anti-pollution device applied to the emulsion circulating filtration system is filtered through the filtering bin, clean emulsion is transported to the depositing bin, the deposited emulsion is introduced into the stabilizing bin, and the stabilizing bin is adjusted to avoid the impact caused by silt blockage.

Description

Technical Field

[0001] This invention and an anti-fouling device applied in an emulsion circulation filtration system belong to the field of cold rolling technology. Background Technology

[0002] Currently, most cold rolling processes use emulsions to lubricate and cool the rolls and strip. The control parameters of the emulsion system are adapted to factors such as the steel grade, strip specifications, rolling speed, rolling force, and emulsion quality (rolling conditions). When rolling many extremely thin materials below 0.2mm, cold rolling mills generate more sludge and are more difficult to maintain. There have been numerous instances where sludge in the pipelines has caused the equipment's functional accuracy to fail to meet the on-site process requirements.

[0003] Production practice has proven that the presence of sludge in emulsion pipelines has a significant impact on the emulsion itself and the rolling process. Due to the severe accumulation of sludge entrained in the emulsion within the pipeline, coupled with the constraints of the pipeline diameter, the pressure in a blocked section of the pipeline will inevitably be further increased when the main pump flow rate is constant. Under the impact of pressure changes, electrical components such as pressure sensors on the pipeline are easily damaged, making it impossible to efficiently monitor emulsion parameters and thus hindering effective closed-loop control. This leads to repeated shutdowns and quality problems. Moreover, the surface defects caused by sludge have a significant impact on subsequent processes and are often difficult to adjust. In many cases, adjustments are impossible, so the problem has remained unresolved. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned technology and provide a device that solves the problem of sludge clogging pipes and impact causing frequent damage to components during use.

[0005] To solve the above-mentioned technical problems, the technical solution proposed by this invention is: an anti-fouling device applied in an emulsion circulating filtration system, comprising: a filter chamber, a sedimentation chamber, and a stabilization chamber arranged sequentially from top to bottom; the filter chamber is divided into a first chamber and a second chamber by a first baffle plate. The first and second chambers are connected above the first baffle plate; the first chamber has an inlet and contains filter material; the bottom of the second chamber has a guide pipe connected to the sedimentation chamber; the sedimentation chamber is divided into a third and fourth chamber by the second baffle plate, and the third and fourth chambers are connected above the second baffle plate, with the outlet of the guide pipe located in the third chamber and facing the second baffle plate; the bottom of the fourth chamber has an opening connected to the stabilization chamber; the stabilization chamber has a first and a second liquid inlet connected to the bottom opening of the fourth chamber; the first liquid inlet is connected to the stabilization chamber inside the stabilization chamber via a spiral channel; the second liquid inlet is connected to the stabilization chamber via a movable tube; one end of the movable tube near the second liquid inlet is connected to the stabilization chamber by a spring, and the other end has several openings connecting to the stabilization chamber; the stabilization chamber has an outlet that can connect to the outside.

[0006] A further improvement to the above solution is that the filter material is volcanic rock.

[0007] A further improvement to the above solution is that the second baffle is inclined, with an angle of 15° to 45° relative to the bottom surface of the sedimentation tank, and the top of the second baffle is located in the middle of the height direction of the sedimentation tank.

[0008] A further improvement to the above solution is that an adjusting sleeve is fitted onto one end of the movable tube with an opening, and the adjusting sleeve is driven by a nut arranged in the stabilizing chamber and can move along the axial direction of the movable tube.

[0009] A further improvement to the above solution is that the filter chamber has a door.

[0010] A further improvement to the above scheme is that the third chamber has a discharge valve.

[0011] A further improvement to the above scheme is that the liquid inlet is located on the top surface of the first cavity at the end away from the second cavity.

[0012] A further improvement to the above scheme is that the opening of the fourth cavity is located on the bottom surface of the end of the fourth cavity that is away from the third cavity.

[0013] The anti-fouling device provided by this invention, applied to an emulsion circulation filtration system, delivers clean emulsion to a sedimentation tank after filtration in the filtration chamber; the sedimented emulsion is then introduced into a stabilization tank; and the stabilization tank's adjustment prevents the impact caused by sludge blockage. Follow-up observations of the improved pipeline sludge control measures have shown excellent results. Through optimization and management, the device achieves "reduced new material procurement," "reduced equipment failure rate," and "reduced maintenance time." Most importantly, through comprehensive management, it assists in establishing a dual flow and pressure control model for the process, reducing abnormal roll changes caused by quality problems such as roll marks, thermal scratches, and color differences on the strip surface due to emulsion flow and pressure, and reducing process roll consumption ("2 reductions"). This device effectively meets the requirements of shape control in high-speed continuous cold rolling production. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention. Detailed Implementation Example

[0015] This embodiment applies to the anti-fouling device in an emulsion circulating filtration system, such as... Figure 1 As shown, the system includes: a filter chamber, a sedimentation chamber, and a stabilization chamber arranged sequentially from top to bottom; the filter chamber is divided into a first chamber 18 and a second chamber 20 by a first baffle plate 19, and the first chamber 18 and the second chamber 20 are connected above the first baffle plate 19; the first chamber 18 has an inlet 16 and contains filter material 17; the bottom of the second chamber 20 has a guide pipe 21 that communicates with the sedimentation chamber; the inlet 16 is connected to the upper frame branch pipe of the emulsion circulation filtration system for introducing the emulsion that needs to be filtered and stabilized. After the emulsion is introduced, it first passes through the filter material 17 for filtration. At the same time, the first baffle plate 19 increases the overflow height, so the first chamber 18 has a sedimentation effect at the same time. The filtered emulsion overflows above the first baffle plate 19 into the second chamber 20, and then enters the sedimentation chamber through the guide pipe 21. In this embodiment, the filter material 17 is volcanic rock, which is filtered by the fine pores of the volcanic rock. The filter chamber has a door 25, which allows for cleaning of the filter chamber and replacement of the volcanic rock.

[0016] The sedimentation chamber is divided into a third chamber 22 and a fourth chamber by a second baffle plate 23. The third chamber 22 and the fourth chamber are connected above the second baffle plate 23. The guide pipe 21 is a curved pipe with a flat bottom outlet facing the second baffle plate 23. The second baffle plate 23 is inclined, with an angle of 15° to 45° relative to the bottom surface of the sedimentation chamber. In this embodiment, a 30° angle is used, and the top of the second baffle plate 23 is located in the middle of the height direction of the sedimentation chamber. In this way, the emulsion flowing out of the flat outlet of the guide pipe 21 can be buffered by the second baffle plate 23 to avoid impacting the sediment in the third chamber 22 and affecting the sedimentation effect. The third chamber 22 has a discharge valve 24 to periodically discharge the residual liquid in the third chamber 22.

[0017] The fourth chamber has an opening at its bottom that connects to a stabilizing chamber. The stabilizing chamber has a first liquid inlet 26 and a second liquid inlet 27 connected to the opening at the bottom of the fourth chamber. The first liquid inlet 26 connects to a stabilizing chamber 31 within the stabilizing chamber via a spiral channel. The second liquid inlet 27 connects to the stabilizing chamber 31 via a movable tube. One end of the movable tube near the second liquid inlet 27 is connected to the stabilizing chamber via a spring 29, and the other end has several openings 30 connecting to the stabilizing chamber 31. The stabilizing chamber 31 has an outlet 32 ​​that connects to the outside. The emulsion, after filtration and sedimentation, is divided into two paths: one through the spiral channel and the other through the movable tube. The spiral channel effectively reduces the fluctuating pressure of the emulsion, while the spring 29 at the end of the movable tube can adjust and stabilize the emulsion by compressing and releasing when the pressure fluctuates. The two paths converge in the stabilizing chamber 31, creating interference, which further reduces the impact amplitude caused by the fluctuating pressure of the emulsion. Finally, the emulsion returns to the emulsion circulation filtration system through the outlet 32.

[0018] An adjusting sleeve is fitted onto the end of the movable tube with the opening. The adjusting sleeve is driven by a nut 33 located in the stabilizing chamber and can move axially along the movable tube. In this way, the opening 30 on the movable tube can be partially covered, thereby adjusting the liquid discharge rate to adapt to different operating conditions.

[0019] This invention is not limited to the embodiments described above. All technical solutions formed by equivalent substitutions fall within the scope of protection claimed by this invention.

Claims

1. An anti-fouling device applied in an emulsion circulating filtration system, characterized in that, include: The filter chamber, sedimentation chamber, and stabilization chamber are arranged sequentially from top to bottom. The filter chamber is divided into a first chamber and a second chamber by a first baffle plate, and the first and second chambers are connected above the first baffle plate. The first chamber has a liquid inlet and contains filter material. The bottom of the second chamber has a guide pipe that communicates with the sedimentation chamber. The sedimentation chamber is divided into a third chamber and a fourth chamber by a second baffle plate, and the third and fourth chambers are connected above the second baffle plate. The outlet of the guide pipe is located in the third chamber and faces the second baffle plate. The bottom of the fourth chamber has an opening that communicates with the stabilization chamber. The stabilization chamber has a first liquid inlet and a second liquid inlet that are connected to the bottom opening of the fourth chamber. The first liquid inlet is connected to the stabilizing chamber inside the stabilizing chamber via a spiral channel; the second liquid inlet is connected to the stabilizing chamber via a movable tube; one end of the movable tube near the second liquid inlet is connected to the stabilizing chamber via a spring, and the other end has several openings that connect to the stabilizing chamber; the stabilizing chamber has a liquid outlet that can connect to the outside.

2. The anti-fouling device applied to an emulsion circulating filtration system according to claim 1, characterized in that: The filter material is volcanic rock.

3. The anti-fouling device applied to an emulsion circulating filtration system according to claim 2, characterized in that: The second baffle is inclined, with an angle of 15° to 45° relative to the bottom surface of the sedimentation tank, and the top of the second baffle is located in the middle of the height direction of the sedimentation tank.

4. The anti-fouling device applied to an emulsion circulating filtration system according to claim 3, characterized in that: An adjusting sleeve is fitted onto one end of the movable tube with an opening. The adjusting sleeve is driven by a nut arranged in the stabilizing chamber and can move along the axial direction of the movable tube.

5. The anti-fouling device applied to an emulsion circulating filtration system according to claim 4, characterized in that: The filter chamber has a door.

6. The anti-fouling device for use in an emulsion circulating filtration system according to claim 5, characterized in that: The third chamber has a discharge valve.

7. The anti-fouling device for use in an emulsion circulating filtration system according to claim 6, characterized in that: The inlet is located on the top surface of the first cavity at the end away from the second cavity.

8. The anti-fouling device for use in an emulsion circulating filtration system according to claim 7, characterized in that: The opening of the fourth cavity is located on the bottom surface of the fourth cavity at the end away from the third cavity.

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