A filter aid mixture supply system

Abstract

This utility model relates to the technical field of rolling oil treatment equipment, and more particularly to a filter aid mixture supply system. The filter aid delivery pipe includes a first branch pipe, multiple second branch pipes, and a third branch pipe. The first branch pipe is located inside a mixing tank with one end extending out of the mixing tank. Multiple second branch pipes are mounted on and connected to the first branch pipe, each equipped with a second valve. The ends of the multiple second branch pipes furthest from the first branch pipe are connected to the third branch pipe. The end of the third branch pipe is connected to a sludge delivery pipe. A purge pipe is also connected to the first branch pipe, equipped with a third valve, and connected to external purge equipment. The purge pipe connected to the external purge equipment can purge the first branch pipe, making cleaning easier when it becomes clogged.

Description

Technical Field

[0001] This utility model relates to the technical field of rolling oil treatment equipment, and in particular to a filter aid mixture supply system. Background Technology

[0002] In the rolling of non-ferrous metals, rolling oil is needed to lubricate and cool the rolling mill bearings, rollers and other components during the rolling process; however, in the rolling of aluminum foil, the rolling oil will be contaminated by fine aluminum powder on the surface of the aluminum foil and external impurities. Therefore, the sludge oil in the sludge tank needs to be filtered to ensure the cleanliness of the rolling oil when it is reused.

[0003] The filtration process of rolling oil involves first mixing the filter aid and sludge oil evenly in a mixing tank, then adding the filter aid mixture to the rolling oil under the action of a sludge oil pump. The rolling oil mixed with the filter aid is then sent to a plate filter for filtration. After filtration, the rolling oil is sent to the rolling mill to lubricate and cool the components.

[0004] The main pipeline in the existing filter aid mixture supply system is at risk of being blocked by impurities (such as filter aid packaging bags and various debris entering through the mixing tank feed port) during the transport of the filter aid mixture. After the main pipeline is blocked, the filter aid mixture in the mixing tank needs to be extracted, and then the main pipeline needs to be manually disassembled and cleaned, which is time-consuming and laborious and reduces the efficiency of sludge treatment. Summary of the Invention

[0005] To address the cumbersome cleaning process of the main pipeline in existing filter aid mixture supply systems when it becomes clogged, this invention proposes a filter aid mixture supply system. The purging pipe connected to an external purging device can purge the first branch pipe, making cleaning easier when it becomes clogged. Furthermore, multiple second branch pipes are provided, allowing the filter aid mixture to be transported through other second branch pipes even when a single second branch pipe is clogged, thus improving the efficiency of sludge and oil treatment.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A filter aid mixture supply system is provided for supplying a filter aid mixture to a sludge conveying pipe. One end of the sludge conveying pipe is connected to a sludge tank, and the other end is connected to a plate filter. A sludge pump is installed on the sludge conveying pipe. The supply system includes a mixing tank with a feeding port at its upper end. The mixing tank is equipped with a filter aid conveying pipe and a return oil pipe, both of which are connected to the sludge conveying pipe. A first valve is installed on the return oil pipe. The connection between the filter aid conveying pipe and the sludge conveying pipe is located on the inlet side of the sludge pump. The connection between the return oil pipe and the sludge conveying pipe is... The connection point is located on the outlet side of the sludge pump. The filter aid delivery pipe includes a first branch pipe, multiple second branch pipes, and a third branch pipe. The first branch pipe is located inside the mixing tank with one end extending out of the mixing tank. Multiple second branch pipes are located on and connected to the first branch pipe. Each second branch pipe is equipped with a second valve. The ends of the multiple second branch pipes away from the first branch pipe are connected to the third branch pipe. The end of the third branch pipe is connected to the sludge delivery pipe. A purge pipe is also connected to the first branch pipe, and the purge pipe is equipped with a third valve. The purge pipe is connected to external purge equipment. The return oil pipe is used to transport a portion of the sludge to the mixing tank to mix with the powdered filter aid to form a mixed liquid, which facilitates subsequent sludge treatment.

[0008] Preferably, a stirring shaft is rotatably mounted inside the mixing tank, and a power mechanism is mounted on the mixing tank. Multiple stirring blades are evenly fixed on the stirring shaft, and the upper end of the stirring shaft extends out of the mixing tank and is connected and fixed to the output end of the power mechanism. The stirring shaft is rotatably mounted on the mixing tank via bearings.

[0009] Preferably, the power mechanism is a motor or a speed reducer.

[0010] Preferably, it also includes a fourth branch pipe, one end of which is connected to the return oil pipe and the other end of which is connected to the third branch pipe. The fourth branch pipe is equipped with a one-way valve. Some of the excess sludge is then sent back to the sludge conveying pipe through the third branch pipe.

[0011] Preferably, the purging pipe is fixed to the upper end of the first branch pipe and coincides with the axis of the first branch pipe. This improves the purging effect.

[0012] Preferably, the mixing tank is equipped with a filter screen at the feed inlet to prevent external debris from entering the mixing tank when adding chemicals.

[0013] Preferably, a baffle is hinged to the mixing tank, and the baffle is used to block the feeding port on the mixing tank.

[0014] Preferably, the side of the mixing tank is connected to a discharge pipe, and a fourth valve is provided on the discharge pipe.

[0015] Preferably, the side of the mixing tank is connected to an overflow pipe.

[0016] Through the above technical solution, the beneficial effects of this utility model are as follows: This utility model has a purging pipe connected to the first branch pipe. Under the action of external purging equipment, the blocked first branch pipe can be purged to clean the debris in the first branch pipe, replacing the operation of workers disassembling the first branch pipe for cleaning. The cleaning of the first branch pipe is more convenient and faster. At the same time, multiple second branch pipes are connected to the first branch pipe, and one end of each of the multiple second branch pipes is connected to a third branch pipe. When a single second branch pipe is blocked, another second branch pipe can be used to transport the filter aid mixture through the third branch pipe to the sludge conveying pipe, thereby ensuring the subsequent treatment effect of sludge and ensuring the stable operation of the rolling oil supply system. Attached Figure Description

[0017] Figure 1 This is a system flow diagram of a filter aid mixture supply system according to the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the mixing tank in the filter aid mixture supply system of this utility model;

[0019] Figure 3 This utility model relates to a filter aid mixture supply system. Figure 2 Enlarged view of the structure at point A in the middle;

[0020] Figure 4 This is a side view of the mixing tank of a filter aid mixture supply system according to the present invention;

[0021] Figure 5 This utility model relates to a filter aid mixture supply system. Figure 4 A cross-sectional view of the mechanism at point BB.

[0022] In the attached diagram, the following numbers are used: 1 is the mixing tank, 2 is the sludge tank, 3 is the power mechanism, 4 is the sludge conveying pipe, 5 is the sludge pump, 6 is the return oil pipe, 7 is the first valve, 8 is the mixing shaft, 9 is the mixing blade, 10 is the first branch pipe, 11 is the second branch pipe, 12 is the third branch pipe, 13 is the second valve, 14 is the purge pipe, 15 is the third valve, 16 is the fourth branch pipe, 17 is the check valve, 18 is the baffle, 19 is the discharge pipe, 20 is the fourth valve, and 21 is the overflow pipe. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0024] like Figures 1-5As shown, this embodiment provides a filter aid mixture supply system for supplying filter aid mixture to a sludge conveying pipe 4. One end of the sludge conveying pipe 4 is connected to a sludge tank 2, and the other end is connected to a plate filter. A sludge pump 5 is installed on the sludge conveying pipe 4. This supply system is used to supply a mixture of powdered filter aid and sludge to the sludge conveying pipe, so that impurities in the sludge are collected together so that the subsequent plate filter can directly filter out these impurities.

[0025] refer to Figure 2 The supply system includes a mixing tank 1, with a feeding port at its upper end. A filter screen (not shown in the figure) is installed at the feeding port of the mixing tank 1. A baffle 18 is hinged to the mixing tank 1, and the baffle 18 is hinged to a hinge seat fixed to the upper end face of the mixing tank 1 via a hinge shaft. The baffle 18 is used to block the feeding port on the mixing tank 1. A discharge pipe 19 is connected to the side of the mixing tank 1, and a fourth valve 20 is installed on the discharge pipe 19 to discharge excess filter aid mixture from the mixing tank 1 when it is not in operation. An overflow pipe 21 is also connected to the side of the mixing tank 1.

[0026] refer to Figure 1 The mixing tank 1 is equipped with a filter aid conveying pipe and a return oil pipe 6. Both the filter aid conveying pipe and the return oil pipe 6 are connected to the sludge conveying pipe 4. The return oil pipe 6 is equipped with a first valve 7. The connection between the filter aid conveying pipe and the sludge conveying pipe 4 is located on the inlet side of the sludge pump 5, and the connection between the return oil pipe 6 and the sludge conveying pipe 4 is located on the outlet side of the sludge pump 5.

[0027] The sludge pump 5, driven by the power of the pump, transports the filter aid mixture in the mixing tank 1 to the sludge conveying pipe 4 through the filter aid conveying pipe on the inlet side of the pump 5. The sludge pump 5, driven by the power of the pump, can send sludge into the mixing tank 1 through the return oil pipe 6 on the outlet side of the pump 5, where it is mixed with the powdered filter aid to form a filter aid mixture, which is then sent into the sludge conveying pipe 4 through the filter aid conveying pipe.

[0028] refer to Figures 1-3 The filter aid delivery pipe includes a first branch pipe 10, a plurality of second branch pipes 11 and a third branch pipe 12. The first branch pipe 10 is located inside the mixing tank 1 and one end of it extends out of the mixing tank 1. The plurality of second branch pipes 11 are all provided on the first branch pipe 10 and communicate with it. Each second branch pipe 11 is provided with a second valve 13. The ends of the plurality of second branch pipes 11 away from the first branch pipe 10 are all communicated with the third branch pipe 12. The end of the third branch pipe 12 is communicated to the sludge and oil delivery pipe 4. In this embodiment, there are two second branch pipes 11 connected in parallel and communicated with the first branch pipe 10 and the third branch pipe 12 respectively.

[0029] The first branch pipe 10 is also connected to a purge pipe 14, which is equipped with a third valve 15. The third valve 15 prevents the filter aid mixture in the first branch pipe 10 from flowing out through the purge pipe 14. The purge pipe 14 is connected to an external purging device, and its end is connected to the output end of the external purging device. The purge pipe 14 is fixed to the upper end of the first branch pipe 10 and coincides with the axis of the first branch pipe 10. When cleaning the first branch pipe 10, the second valve 13 is closed, the third valve 15 is opened, and the external purging device is turned on, which can directly blow the vertical first branch pipe 10, improving the purging effect and the efficiency of impurity removal.

[0030] refer to Figure 1 The supply system also includes a fourth branch pipe 16, one end of which is connected to the return oil pipe 6 and the other end of which is connected to the third branch pipe 12. A one-way valve 17 is provided on the fourth branch pipe 16 for returning excess sludge oil in the return oil pipe 6 back to the sludge oil conveying pipe 4.

[0031] refer to Figure 5 The mixing tank 1 is equipped with a rotating stirring shaft 8, and a power mechanism 3 is mounted on the mixing tank 1. Multiple stirring blades 9 are evenly fixed on the stirring shaft 8. The upper end of the stirring shaft 8 extends out of the mixing tank 1 and is connected and fixed to the output end of the power mechanism 3, which is a motor or a reducer. A bearing (not shown in the figure) is provided on the upper surface of the mixing tank 1 to achieve a rotatable connection between the stirring shaft 8 and the mixing tank 1.

[0032] When using this system to supply filter aid mixture to the sludge conveying pipe 4, firstly, an appropriate amount of powdered filter aid is added to the mixing tank 1 through the feeding port on the mixing tank 1. The sludge pump 5 is kept running. The first valve 7 and the one-way valve 17 are opened, and sludge is added to the mixing tank 1. Some of the sludge will return to the sludge conveying pipe 4 through the fourth branch pipe 16 and the third branch pipe 12. At this time, the power mechanism 3 is started to drive the stirring blades 9 on the stirring shaft 8 to fully stir the sludge and filter aid to form a filter aid mixture. Then, the second valve 13 on the second branch pipe 11 is opened. Under the power of the sludge pump 5, the filter aid mixture in the mixing tank 1 enters the sludge conveying pipe 4 through the first branch pipe 10, the second branch pipe 11 and the third branch pipe 12 in sequence. Finally, under the action of the sludge pump 5, it is transported to the plate filter to filter the sludge mixed with the filter aid mixture.

[0033] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A filter aid mixture supply system for supplying filter aid mixture to a sludge conveying pipe (4), one end of which is connected to a sludge tank (2) and the other end is connected to a plate filter. A sludge pump (5) is provided on the sludge conveying pipe (4). The supply system includes a mixing tank (1), with a feeding port at the upper end of the mixing tank (1). A filter aid conveying pipe and a return oil pipe (6) are provided on the mixing tank (1). Both the filter aid conveying pipe and the return oil pipe (6) are connected to the sludge conveying pipe (4). A first valve (7) is provided on the return oil pipe (6). The connection between the filter aid conveying pipe and the sludge conveying pipe (4) is located on the inlet side of the sludge pump (5), and the connection between the return oil pipe (6) and the sludge conveying pipe (4) is located on the outlet side of the sludge pump (5). The filter aid delivery pipe includes a first branch pipe (10), a plurality of second branch pipes (11) and a third branch pipe (12). The first branch pipe (10) is located inside the mixing tank (1) and one end of it extends out of the mixing tank (1). The plurality of second branch pipes (11) are all located on the first branch pipe (10) and connected to it. Each second branch pipe (11) is provided with a second valve (13). The ends of the plurality of second branch pipes (11) away from the first branch pipe (10) are all connected to the third branch pipe (12). The end of the third branch pipe (12) is connected to the sludge and oil delivery pipe (4). The first branch pipe (10) is also connected to a purge pipe (14). The purge pipe (14) is provided with a third valve (15). The purge pipe (14) is connected to an external purge device.

2. A filter aid slurry supply system according to claim 1, wherein, The mixing tank (1) is equipped with a rotating stirring shaft (8), and a power mechanism (3) is provided on the mixing tank (1). Multiple stirring blades (9) are evenly fixed on the stirring shaft (8). The upper end of the stirring shaft (8) extends out of the mixing tank (1) and is connected and fixed to the output end of the power mechanism (3).

3. A filter aid slurry supply system according to claim 2, wherein, The power mechanism (3) is a motor or a speed reducer.

4. The filter aid slurry supply system of claim 1, wherein, It also includes a fourth branch pipe (16), one end of which is connected to the return oil pipe (6) and the other end is connected to the third branch pipe (12). A one-way valve (17) is provided on the fourth branch pipe (16).

5. The filter aid mixture supply system according to claim 1, characterized in that, The purge pipe (14) is fixed at the upper end of the first branch pipe (10) and coincides with the axis of the first branch pipe (10).

6. The filter aid mixture supply system according to claim 1, characterized in that, The mixing tank (1) is equipped with a filter screen at the feeding port.

7. The filter aid mixture supply system according to claim 1, characterized in that, A baffle (18) is hinged to the mixing tank (1), and the baffle (18) is used to block the feeding port on the mixing tank (1).

8. The filter aid mixture supply system according to claim 1, characterized in that, The side of the mixing tank (1) is connected to a discharge pipe (19), and a fourth valve (20) is provided on the discharge pipe (19).

9. A filter aid mixture supply system according to claim 1, characterized in that, An overflow pipe (21) is connected to the side of the mixing tank (1).

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