Pickling and filtering device of pickling and rolling unit

Abstract

The utility model discloses a pickling and filtering device of a pickling and rolling unit, and relates to the technical field of pickling and filtering equipment, the pickling and filtering device comprises a box body, a first filtering piece, a second filtering piece, a waste water recycling box, a third filtering piece and a water returning piece, the first filtering piece is detachably and fixedly connected in the box body, and the first filtering piece is arranged on one side close to a first water inlet; the second filter part is detachably and fixedly connected into the box body, and the second filter part is arranged on one side close to the first water outlet, so that water entering the box body from the first water inlet flows out of the first water outlet after passing through the first filter part and the second filter part; the third filtering piece is detachably and fixedly connected into the wastewater recycling box, and water entering the wastewater recycling box from the second water inlet flows out of the second water outlet after passing through the third filtering piece; the water return part is arranged at the bottom of the waste water recycling box to enable water in the waste water recycling box to flow back to the flushing device, the structure is simple, use is convenient, and it is effectively guaranteed that flushing water can be repeatedly used.

Description

Technical Field

[0001] The utility model relates to the technical field of pickling and filtering equipment, in particular to a pickling and filtering device for a pickling mill unit. Background Art

[0002] After the production of cold-rolled steel plates in steel mills, they need to be rinsed with acidic liquid to remove the oxide scale and rust on their surface. This process is called pickling. In order to prevent the acidic liquid from excessively corroding the steel, the plates after pickling need to be rinsed again with water to wash away the residual acid on the plates. In order to avoid waste of resources, the water after rinsing will be collected and reused. However, when rinsing the plates, rust residues will inevitably be mixed into the water. In this way, when the rinsing work is repeated, the nozzle of the cleaning water is very likely to be blocked, thereby affecting normal work and bringing great inconvenience to production. Utility Model Content

[0003] The purpose of the utility model is to provide a pickling filter device for a pickling mill to solve the problems existing in the above-mentioned prior art. The device has a simple structure, is easy to use, and effectively ensures that the flushing water can be reused.

[0004] To achieve the above purpose, the present invention provides the following solutions:

[0005] The utility model provides a pickling filter device for a pickling mill unit, comprising: a box body, a first filter element, a second filter element, a wastewater recovery box, a third filter element and a return water element, wherein one end of the box body is provided with a first water inlet, and the other end is provided with a first water outlet; the first filter element is used to be fixedly connected to the box body in a detachable and washable manner, and the first filter element is arranged on a side close to the first water inlet; the second filter element is used to be fixedly connected to the box body in a detachable and washable manner, and the second filter element is arranged on a side close to the first water outlet so that water entering the box from the first water inlet can be removed and washed. The water in the wastewater recovery tank flows out from the first water outlet after passing through the first filter element and the second filter element; the wastewater recovery tank is provided with a second water inlet at the top and a second water outlet at the bottom, and the second water inlet is used to be connected and communicated with the first water outlet; the third filter element is used to be fixedly connected to the wastewater recovery tank in a detachable manner, and the water entering the wastewater recovery tank from the second water inlet flows out from the second water outlet after passing through the third filter element; the return water element is used to be provided at the bottom of the wastewater recovery tank to return the water in the wastewater recovery tank to the flushing device.

[0006] Preferably, it also includes a cleaning port, a first sealing cover and a support leg, the support leg is fixedly connected to the bottom of the box body, the cleaning port is arranged at the bottom of the box body, and is arranged at a position between the first filter element and the second filter element, and the first sealing cover is used to be detachably fixedly connected to the cleaning port and can seal the cleaning port.

[0007] Preferably, the cleaning port is a cone port.

[0008] Preferably, a second sealing cover is further included. An inspection port is provided on the top of the box body. The second sealing cover is used to be detachably fixedly connected to the inspection port to seal the inspection port.

[0009] Preferably, it further comprises a handle, wherein the handle is fixedly connected to the top of the second sealing cover.

[0010] Preferably, it further comprises a first limiting frame, wherein the first limiting frame is fixedly connected to the box body, and the first filter element is a first filter plate, which is used to be detachably fixedly connected to the first limiting frame.

[0011] Preferably, it further comprises a second limiting frame, the second limiting frame is fixedly connected to the box body, the second filter element is a second filter plate, and the second filter plate is used to be detachably fixedly connected to the second limiting frame.

[0012] Preferably, the filter holes of the second filter plate are smaller than the filter holes of the first filter plate.

[0013] Preferably, the return water component includes a water pump and a return water pipe, the water pump is fixedly connected to the bottom of the wastewater recovery tank, and the output port of the water pump is connected and communicated with the first water outlet, one end of the return water pipe is used to be connected and communicated with the end of the first water outlet away from the water pump, and the other end is used to be connected and communicated with the flushing device.

[0014] Compared with the prior art, the utility model has achieved the following technical effects:

[0015] The utility model provides a pickling filter device for a pickling mill unit. The box body serves as the main body of the entire filtering device and provides a accommodating space for the filtering process. The position design of the water inlet enables the pickling wastewater to smoothly enter the box body. The first filter element and the second filter element form a two-stage filtering structure, which effectively filters out particulate impurities in the pickling wastewater. The water that has passed the two-stage filtration inside the box body is discharged into the wastewater recovery box. The wastewater recovery box collects the filtered water and returns the water to the flushing device through the return water element, thereby realizing the recycling of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a structural diagram of the pickling and filtering device of the pickling mill provided by the utility model;

[0018] In the figure: 1. Box body; 2. Support legs; 3. Water inlet; 4. Limit block; 5. Filter plate No. 1; 6. Filter plate No. 2; 7. Inverted cone mouth; 8. Sealing cover No. 1; 9. Sealing cover No. 2; 10. Handle; 11. Water outlet; 12. Wastewater recovery tank; 13. Filter plate No. 3; 14. Water pump; 15. Water pipe. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] The purpose of the utility model is to provide a pickling filter device for a pickling mill to solve the problems existing in the above-mentioned prior art. The device has a simple structure, is easy to use, and effectively ensures that the flushing water can be reused.

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0022] The utility model provides a pickling and filtering device for a pickling mill, such as Figure 1The utility model shows that it comprises: a box body 1, a first filter element, a second filter element, a waste water recovery box 12, a third filter element and a return water element. A first water inlet 3 is provided at one end of the box body 1, and a first water outlet 11 is provided at the other end; the first filter element is used to be fixedly connected to the box body 1 so as to be detachable and washable, and the first filter element is arranged on a side close to the first water inlet 3; the second filter element is used to be fixedly connected to the box body 1 so as to be detachable and washable, and the second filter element is arranged on a side close to the first water outlet 11 so that the water entering the box body 1 from the first water inlet 3 flows out from the first water outlet 11 after passing through the first filter element and the second filter element; the second water inlet 3 is provided at the top end of the waste water recovery box 12, and the second water outlet 11 is provided at the bottom end, and the second water inlet 3 is used to be connected and communicated with the first water outlet 11; the third filter element The filter element is used to be fixedly connected to the wastewater recovery tank 12 in a detachable manner, and the water entering the wastewater recovery tank 12 from the second water inlet 3 flows out from the second water outlet 11 after passing through the third filter element; the return water element is used to be arranged at the bottom of the wastewater recovery tank 12 to return the water in the wastewater recovery tank 12 to the flushing device. The box body 1 serves as the main body of the entire filtering device and provides a accommodating space for the filtering process. The position design of the water inlet 3 allows the pickling wastewater to enter the box body 1 smoothly. The first filter element and the second filter element form a two-stage filtering structure, which effectively filters out particulate impurities in the pickling wastewater. The water that has passed the two-stage filtration inside the box body 1 is discharged into the wastewater recovery tank 12. The wastewater recovery tank 12 collects the filtered water and returns the water to the flushing device through the return water element, thereby realizing the recycling of water resources.

[0023] In a preferred embodiment, the pickling and filtering device of the pickling mill unit further includes a cleaning port, a first sealing cover 8 and a support leg 2, wherein the support leg 2 is fixedly connected to the bottom of the housing 1, and the cleaning port is provided at the bottom of the housing 1 and is provided between the first filter element and the second filter element. The first sealing cover 8 is used to be detachably fixedly connected to the cleaning port and to seal the cleaning port, and the support leg 2 provides stable support for the housing 1. The provision of the cleaning port facilitates the cleaning of impurities filtered out by the first filter element and the second filter element inside the housing 1, thereby improving the maintenance convenience of the device. The first sealing cover 8 ensures the sealing of the housing 1 when it is not cleaned, preventing water leakage.

[0024] In a preferred embodiment, the cleaning port is a conical port, and the design of the inverted conical port 7 allows impurities to be concentrated in a smaller area, making cleaning easier and improving cleaning efficiency.

[0025] In a preferred embodiment, the pickling and filtering device of the pickling mill unit also includes a second sealing cover 9. An inspection port is provided on the top of the box body 1. The second sealing cover 9 is used to be detachably fixedly connected to the inspection port so as to seal the inspection port. The arrangement of the inspection port and the second sealing cover 9 facilitates inspection and maintenance of the interior of the box body 1, thereby improving the maintainability of the device.

[0026] In a preferred embodiment, the pickling and filtering device of the pickling mill further includes a handle 10, which is fixedly connected to the top of the second sealing cover 9. The provision of the handle 10 facilitates opening and closing the second sealing cover 9, thereby improving the convenience of operation.

[0027] In a preferred embodiment, the pickling and filtering device for the pickling mill further includes a first limiting frame 4, which is fixedly connected to the housing 1. The first filter element is a first filter plate 5, which is detachably fixedly connected to the first limiting frame 4. The first limiting frame 4 provides a stable mounting position for the first filter plate 5 to ensure normal operation of the filter plate. The detachable connection facilitates replacement and maintenance of the first filter plate 5.

[0028] In a preferred embodiment, the pickling and filtering device for the pickling mill further includes a second retaining frame fixedly connected to the housing 1. The second filter element is a second filter plate 6, which is detachably fixedly connected to the second retaining frame. The second retaining frame provides a stable mounting position for the second filter plate 6 to ensure a good filtering effect. The detachable connection facilitates maintenance and replacement of the second filter plate 6.

[0029] In a preferred embodiment, the filter holes of the second filter plate 6 are smaller than the filter holes of the first filter plate 5. This design enables the filtration device to form a graded filtration. The larger filter holes of the first filter plate 5 first filter out larger particles of impurities, and the smaller filter holes of the second filter plate 6 further filter fine particles, thereby improving the overall filtration accuracy and effect, and more effectively removing impurities of different sizes in the water.

[0030] In a preferred embodiment, the third filter element is a third filter plate 13. Specifically referring to the third filter element as the third filter plate 13 makes the filtration structure more specific and clear. The third filter plate 13 refilters the water in the wastewater recovery tank 12 after two stages of filtration in the tank 1, further improving water cleanliness and ensuring higher-quality recycled water. Similarly to the other filter plates, the third filter plate 13's detachable connection facilitates cleaning and maintenance, ensuring the continued stable operation of the filtration device. The reason for not providing a cleaning outlet on the top of the third filter plate 13 is that adding a cleaning outlet would require additional design considerations, including considerations of its location, size, and sealing method. This would increase design complexity and manufacturing costs. While meeting filtration requirements, simplifying the device structure as much as possible can reduce production costs. While providing a cleaning outlet may facilitate cleaning of the third filter plate to some extent, it may also increase maintenance costs. For example, the outlet's seal must be regularly checked to prevent leaks. If a cleaning outlet is not provided, cleaning can be performed through other methods, such as shutting down the machine and removing the filter plate. While this is more laborious, it can reduce maintenance costs.

[0031] In a preferred embodiment, the return water component includes a water pump 14 and a return water pipe 15. The water pump 14 is fixedly connected to the bottom of the wastewater recovery tank 12, and the output port of the water pump 14 is connected and communicated with the first water outlet 11. One end of the return water pipe 15 is used to connect and communicate with the end of the first water outlet 11 away from the water pump 14, and the other end is used to connect and communicate with the flushing device. The return water component composed of the water pump 14 and the return water pipe 15 can stably return the water in the wastewater recovery tank 12 to the flushing device, ensuring the smooth progress of the water circulation and improving the utilization efficiency of water resources.

[0032] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A pickling and filtering device for a pickling mill, characterized by: include: A box body, wherein one end of the box body is provided with a first water inlet, and the other end of the box body is provided with a first water outlet; a first filter element, the first filter element being fixedly connected to the housing so as to be detachable and washable, and being arranged on a side close to the first water inlet; a second filter element, the second filter element being fixedly connected to the housing in a removable and washable manner, and being disposed on a side close to the first water outlet so that water entering the housing through the first water inlet passes through the first filter element and the second filter element and then flows out of the first water outlet; A wastewater recovery tank, wherein the top of the wastewater recovery tank is provided with a second water inlet, and the bottom of the wastewater recovery tank is provided with a second water outlet, wherein the second water inlet is used to be connected and communicated with the first water outlet; a third filter element, the third filter element being configured to be detachably fixedly connected to the wastewater recovery tank, and allowing water entering the wastewater recovery tank from the second water inlet to pass through the third filter element and then flow out from the second water outlet; as well as A water return component is provided at the bottom of the wastewater recovery tank to return the water in the wastewater recovery tank to the flushing device.

2. The pickling and filtering device for pickling mill according to claim 1, characterized in that: It also includes a cleaning port, a first sealing cover and a support leg, the support leg is fixedly connected to the bottom of the box body, the cleaning port is arranged at the bottom of the box body and is arranged at a position between the first filter element and the second filter element, and the first sealing cover is used to be detachably fixedly connected to the cleaning port and can seal the cleaning port.

3. The pickling and filtering device for pickling mill according to claim 2, characterized in that: The cleaning port is a cone port.

4. The pickling and filtering device for a pickling mill according to claim 3, characterized in that: A second sealing cover is also included. An inspection port is provided on the top of the box body. The second sealing cover is used to be detachably fixedly connected to the inspection port to seal the inspection port.

5. The pickling and filtering device for pickling mill according to claim 4, characterized in that: It also includes a handle, which is fixedly connected to the top of the second sealing cover.

6. The pickling and filtering device for pickling mill according to claim 5, characterized in that: It also includes a first limiting frame, which is fixedly connected to the box body. The first filter element is a first filter plate, which is used to be detachably fixedly connected to the first limiting frame.

7. The pickling and filtering device for a pickling mill according to claim 6, characterized in that: It also includes a second limiting frame, which is fixedly connected to the box body. The second filter element is a second filter plate, which is used to be detachably fixedly connected to the second limiting frame.

8. The pickling and filtering device for a pickling mill according to claim 7, characterized in that: The filter holes of the second filter plate are smaller than the filter holes of the first filter plate.

9. The pickling and filtering device for a pickling mill according to claim 1, characterized in that: The return water component includes a water pump and a return water pipe. The water pump is fixedly connected to the bottom of the wastewater recovery tank, and the output port of the water pump is connected and communicated with the first water outlet. One end of the return water pipe is used to be connected and communicated with the end of the first water outlet away from the water pump, and the other end is used to be connected and communicated with the flushing device.

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