Emulsion flat bed filtering equipment

Abstract

The utility model provides emulsified liquid flat bed filtering equipment, which relates to the technical field of emulsified liquid filtering and comprises a filtering box, a partition plate and a filtering medium, the filter medium penetrates through the filter box to divide the filter box into a dirty liquid cavity and a clean liquid box, and the filter medium is configured to be in sliding connection with the filter box; the liquid purifying box is divided into a first filtering cavity and a second filtering cavity through the partition plate; the first filtering cavity and the second filtering cavity are sequentially distributed in the direction in which the filtering medium penetrates through the filtering box. According to the emulsified liquid flat bed filtering equipment disclosed by the utility model, emulsified liquid in the first filtering cavity and the second filtering cavity can be effectively isolated, so that the filtering precision of the emulsified liquid needing to be recycled in the second filtering cavity is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to emulsion filter technical field, especially in kind of emulsion flat bed filter equipment BACKGROUND

[0002] At present, in the field of strip rolling, emulsion is the most common process lubricating medium, which is sprayed to the designated position according to the process requirements in the rolling process, playing the role of lubrication, cooling and cleaning. The recycling emulsion inevitably mixes with various pollutants in the rolling process, which can deteriorate the performance of the emulsion and affect the normal production and the surface quality of the rolled product.

[0003] In the prior art, in order to remove metal particles, ash, oil sludge and other pollutants in the emulsion, a vacuum flat bed filter is widely used. The filtering mechanism of the vacuum flat bed filter is physical screening, and the filtering medium (filter paper) traps the pollutants in the emulsion according to the size of the pore diameter. Since the metal particles in the emulsion pollutants are extremely small, they can reach the order of μm, and when they are trapped on the filtering medium, a filter cake is formed, and the filtering accuracy after the formation of the filter cake layer is more than 10 times higher than the filtering hole accuracy of the original filtering medium. In applications with high filtering accuracy requirements, the main filtering action is not the filtering medium but the filter cake formed on the filtering medium.

[0004] However, the inventors have found that, in actual use, the formation of the filter cake layer requires a certain filtering time and filtering amount, but when the existing vacuum flat bed filter is replaced with the filtering medium in a pulling manner, the filtering time of the inlet section of the filtering medium is short, and the filter cake layer has not been formed, so the emulsion filtered at this point cannot meet the high accuracy requirements, which will eventually affect the filtering accuracy of the filter. SUMMARY

[0005] The problem solved by the utility model is how to improve the filtering accuracy of the emulsion flat bed filter equipment.

[0006] In order to solve the above problems, the utility model provides an emulsion flat bed filter equipment, which comprises a filter box, a partition plate and a filtering medium; the filtering medium penetrates the filter box to separate the filter box into a dirty liquid cavity and a clean liquid tank, and the filtering medium is configured in sliding connection with the filter box; the clean liquid tank is separated into a first filtering cavity and a second filtering cavity through the partition plate; the first filtering cavity and the second filtering cavity are sequentially distributed along the direction in which the filtering medium penetrates the filter box.

[0007] Optionally, the filter box is provided with a filtering medium inlet, and the first filtering cavity is located between the second filtering cavity and the filtering medium inlet; the size of the first filtering cavity in the direction in which the filtering medium penetrates the filter box is smaller than the size of the second filtering cavity in the direction in which the filtering medium penetrates the filter box.

[0008] Optionally, the emulsion flat bed filter device further comprises a vacuum holding device, which is in communication with the first filter cavity.

[0009] Optionally, the vacuum holding device comprises a liquid storage tube, one end of which is in communication with the first filter cavity, and a curved section for storing liquid is arranged at the middle part of the liquid storage tube.

[0010] Optionally, the curved section is in the shape of U, W, V or S.

[0011] Optionally, the vacuum holding device comprises a liquid storage box and a communication tube, the liquid storage box is filled with liquid, the liquid storage box is in communication with the first filter cavity through the communication tube, and the liquid level of the liquid storage box is higher than the communication position of the liquid storage box and the communication tube.

[0012] Optionally, the emulsion flat bed filter device further comprises a vacuum pump, the inlet end of the vacuum pump is in communication with the second filter cavity, and the outlet end of the vacuum pump is in communication with the dirty liquid cavity.

[0013] Optionally, the emulsion flat bed filter device further comprises a chain bed and a power device, the chain bed passes through the filter box along the direction in which the filter medium passes through the filter box, and the filter medium is laid on the chain bed; the power device is used for driving the chain bed to move back and forth circularly, and driving the filter medium to move out of the filter box.

[0014] Optionally, the emulsion flat bed filter device further comprises a liquid level switch and a controller, the liquid level switch is used for detecting the liquid level in the dirty liquid cavity, and the controller is electrically connected with the liquid level switch, the vacuum pump and the power device respectively.

[0015] Optionally, the emulsion flat bed filter device further comprises a winding drum and a collecting device, one end of the filter medium is wound on the winding drum, and the other end is used for being collected in the collecting device.

[0016] Compared with the prior art, the emulsion flat bed filter device has the following beneficial effects:

[0017] In the structure of the emulsion flat bed filter device, the filter medium penetrates through the filter box and separates the filter box into a dirty liquid cavity and a clean liquid tank, so that the dirty liquid in the dirty liquid cavity can enter the clean liquid tank after being filtered by the filter medium; the filter medium can slide relative to the filter box, so that the used filter medium can be removed from the filter box, and the unused filter medium can gradually enter the filter box, so that the filter medium can be replaced; the clean liquid tank is separated into a first filter cavity and a second filter cavity by a partition plate, since the first filter cavity and the second filter cavity are sequentially distributed along the direction in which the filter medium penetrates through the filter box, the emulsion filtered by the part of the filter medium close to the inlet end can enter the first filter cavity and then be discharged alone; the emulsion filtered by the other part of the filter medium can enter the second filter cavity and then be recycled; in summary, the emulsions in the first filter cavity and the second filter cavity can be effectively isolated, so that the filtering precision of the emulsion that needs to be recycled in the second filter cavity is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The structure principle diagram of the emulsion flat bed filter device of the embodiment of the present application;

[0019] Figure 2 The electric control principle diagram of the embodiment of the present application.

[0020] BRIEF DESCRIPTION OF DRAWINGS

[0021] 1, filter box; 2, partition plate; 3, filter medium; 4, dirty liquid cavity; 5, first filter cavity; 6, second filter cavity; 7, vacuum pump; 8, vacuum maintaining device; 9, chain bed; 10, power device; 11, liquid level switch; 12, winding drum; 13, collecting device; 14, dirty liquid inlet; 15, first clean liquid outlet; 16, second clean liquid outlet; 17, dirty liquid overflow outlet; 18, filter medium inlet; 19, controller. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present application will be described in detail below with reference to the drawings, so that the advantages and features of the present application can be more easily understood by those skilled in the art, and the scope of protection of the present application can be more clearly defined.

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. Although some embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms, and should not be interpreted as being limited to the embodiments described herein, on the contrary, these embodiments are provided to make the present application more thorough and complete. It should be understood that the drawings and embodiments of the present application are only for illustrative purposes, and are not used to limit the scope of protection of the present application.

[0024] The term "comprising" and variations thereof as used herein are open-ended, that is "including, but not limited to"; the term "based on" is, at least based on part on; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". Related definitions are given throughout the detailed description. It is to be noted that the concepts mentioned in the present application are illustrative and not restrictive, and those skilled in the art should understand that "one" "multiple" modification is illustrative and not restrictive, and those skilled in the art should understand that "one" or "multiple" should be understood as "one or more" unless otherwise explicitly stated in the context.

[0025] It is to be noted that the "one" "multiple" modification mentioned in the present application is illustrative and not restrictive, and those skilled in the art should understand that "one" or "multiple" should be understood as "one or more" unless otherwise explicitly stated in the context.

[0026] In the prior art, when the emulsion flat bed filter equipment is replaced with filter medium 3, the used part of the filter medium 3 is removed from the filter box 1, and the unused part of the filter medium 3 is moved into the filter box 1; in this process, one end of the filter medium 3 is slowly removed from the filter box 1, and the other end is slowly moved into the filter box 1, so that the part of the filter medium 3 closer to the outlet end is filtered for a longer time, and the part of the filter medium 3 closer to the inlet end is filtered for a shorter time, which ultimately leads to poor filtering effect of the part of the filter medium 3 closer to the inlet end, thereby affecting the overall filtering precision.

[0027] In order to solve the above problems, the present application provides an emulsion flat bed filter equipment, comprising a filter box 1, a partition 2 and a filter medium 3; the filter medium 3 passes through the filter box 1 to separate the filter box 1 into a dirty liquid cavity 4 and a clean liquid tank, and the filter medium 3 is configured to be in sliding connection with the filter box 1; the clean liquid tank is divided into a first filter cavity 5 and a second filter cavity 6 by the partition 2; the first filter cavity 5 and the second filter cavity 6 are distributed in turn along the direction of the filter medium 3 penetrating the filter box 1.

[0028] Specifically, as shown in Figure 1 The shape of the filter box 1 can be square, circular or elliptical, which is not limited here and is determined according to actual needs. As shown in Figure 1As shown, the filter box 1 is a horizontally placed square box, and the filter medium 3 is filter paper or filter cloth. A filter cloth extends horizontally through the filter box 1 to divide it into a dirty liquid chamber 4 and a clean liquid chamber, with the dirty liquid chamber 4 located above the clean liquid chamber. The filter medium 3 is configured to slide relative to the filter box 1, and the two are sealed at the connection point to restrict liquid outflow. The clean liquid chamber is divided into a first filter chamber 5 and a second filter chamber 6 by a partition 2. The first filter chamber 5 and the second filter chamber 6 are sequentially distributed along the direction in which the filter medium 3 penetrates the filter box 1 (i.e., the horizontal direction).

[0029] In this embodiment, the filter medium 3 passes through the filter box 1, dividing the filter box 1 into a dirty liquid chamber 4 and a clean liquid chamber. Thus, the dirty liquid in the dirty liquid chamber 4, after being filtered by the filter medium 3, can enter the clean liquid chamber. The filter medium 3 can slide relative to the filter box 1, allowing used filter medium 3 to be removed from the filter box 1, while unused filter medium 3 can gradually enter the filter box 1, thereby achieving filter medium 3 replacement. The clean liquid chamber is divided into a first filter chamber 5 and a second filter chamber 6 by a partition 2. Since the first filter chamber 5 and the second filter chamber 6 are sequentially distributed along the direction in which the filter medium 3 penetrates the filter box 1, the emulsion filtered by the portion of the filter medium 3 near the inlet can enter the first filter chamber 5 and then be discharged separately; the emulsion filtered by the other portions of the filter medium 3 can enter the second filter chamber 6 and then be recycled. In summary, the emulsions in the first filter chamber 5 and the second filter chamber 6 can be effectively isolated, thereby effectively improving the filtration accuracy of the emulsion that needs to be recycled in the second filter chamber 6.

[0030] In this embodiment, a sewage inlet 14 is provided at the middle position of the top wall of the sewage chamber 4, through which sewage can enter the sewage chamber 4. The first filter chamber 5 is provided with a first clean liquid outlet 15; the second filter chamber 6 is provided with a second clean liquid outlet 16.

[0031] Optionally, the filter box 1 is provided with a filter medium inlet 18, and the first filter cavity 5 is located between the second filter cavity 6 and the filter medium inlet 18; the size of the first filter cavity 5 along the direction in which the filter medium 3 penetrates the filter box 1 is smaller than the size of the second filter cavity 6 along the direction in which the filter medium 3 penetrates the filter box 1.

[0032] Specifically, such as Figure 1 As shown, the filter box 1 has a filter medium inlet 18 at its right end; the first filter chamber 5 is located between the second filter chamber 6 and the filter medium inlet 18, that is, the second filter chamber 6 is located to the left of the first filter chamber 5, and the filter medium inlet 18 is located to the right of the first filter chamber 5; wherein, the horizontal dimension of the first filter chamber 5 is smaller than the horizontal dimension of the second filter chamber 6.

[0033] In this optional embodiment, by reasonably arranging the positions and dimensions of the first filter chamber 5 and the second filter chamber 6, a relatively high-precision emulsion can be obtained to meet the working conditions.

[0034] Optionally, the emulsion flat bed filtration equipment further includes a vacuum holding device 8, which is connected to the first filtration chamber 5.

[0035] In one embodiment, the vacuum holding device 8 includes a liquid storage tube, one end of which is connected to the first filter chamber 5, and the middle part of the liquid storage tube is provided with a curved section for storing liquid.

[0036] In this optional embodiment, the shape of the curved segment is U-shaped, W-shaped, V-shaped, or S-shaped.

[0037] In another embodiment, the vacuum holding device 8 includes a liquid storage box and a connecting pipe; the liquid storage box is filled with liquid; the liquid storage box is connected to the first filter chamber 5 through the connecting pipe, and the liquid level of the liquid storage box is higher than the connection point between the liquid storage box and the connecting pipe.

[0038] In both of the above embodiments, the vacuum holding device 8 can ensure that a vacuum is formed in the first filter chamber 5. In this way, when a vacuum is drawn in the second filter chamber 6, the backflow of liquid in the first filter chamber 5 into the second filter chamber 6 can be effectively restricted.

[0039] Optionally, the emulsion flat bed filtration device further includes a vacuum pump 7, the inlet end of which is connected to the second filtration chamber 6; and the outlet end of which is connected to the waste liquid chamber 4.

[0040] In this optional embodiment, as the system operates, more and more substances are trapped on the filter medium 3, and the resistance to flow through the filter medium 3 increases. At this time, the vacuum pump 7 is started to evacuate the second filter chamber 6. Under the action of its own weight and atmospheric pressure, the sewage enters the second filter chamber 6 through the filter medium 3, increasing the flow capacity.

[0041] Optionally, the emulsion flat bed filtration device further includes a chain bed 9 and a power unit 10. The chain bed 9 passes through the filter box 1 along the direction in which the filter medium 3 passes through the filter box 1, and the filter medium 3 is laid on the chain bed 9. The power unit 10 is used to drive the chain bed 9 to reciprocate in a cycle and to move the filter medium 3 out of the filter box 1.

[0042] Specifically, such as Figure 1 As shown, the chain bed 9 is generally circular, with its upper part passing through the filter box 1 in a horizontal direction, and the filter medium 3 is laid on top of the chain bed 9; the power unit 10 is a drive motor, which is used to drive the chain bed 9 to reciprocate in a cycle and to move the filter medium 3 out of the filter box 1.

[0043] In this optional embodiment, the chain bed 9 passes through a partially sealed section of the filter box 1 to prevent liquid leakage. When too much residue is trapped on the filter medium 3, making it difficult to filter the dirty liquid, the power unit 10 can be activated. The power unit 10 will drive the chain bed 9 to reciprocate in a cycle, so as to move the used filter medium 3 out of the filter box 1 and the unused filter medium 3 into the filter box 1.

[0044] Optionally, such as Figure 1 , 2 As shown, the emulsion flat bed filtration device also includes a level switch 11 and a controller 19. The level switch 11 is used to detect the liquid level in the waste liquid chamber 4. The controller 19 is electrically connected to the level switch 11, the vacuum pump 7 and the power unit 10 respectively.

[0045] In this embodiment, the liquid level switch 11 has a first position and a second position with different heights, wherein the horizontal height of the first position is lower than that of the second position. When the liquid level switch 11 is in the first position, it sends a signal to the controller 19, which controls the vacuum pump 7 to start, which can evacuate the second filter chamber 6. Under the action of its own weight and atmospheric pressure, the sewage enters the second filter chamber 6 through the filter medium 3, increasing the flow capacity. When the liquid level switch 11 is in the second position, it sends a signal to the controller 19, which controls the power unit 10 to start. The power unit 10 drives the chain bed 9 to reciprocate in a cycle, so as to move the used filter medium 3 out of the filter box 1 and the unused filter medium 3 into the filter box 1.

[0046] Furthermore, such as Figure 1 As shown, the waste liquid tank is also equipped with a waste liquid overflow port 17. The height of the waste liquid overflow port 17 is higher than the height of the second position of the liquid level switch 11. In this way, when the waste liquid in the waste liquid tank reaches the waste liquid overflow port 17, it can overflow from here.

[0047] Optionally, such as Figure 1 As shown, the emulsion flat bed filtration equipment also includes a roller 12 and a collection device 13; one end of the filter medium 3 is wound on the roller 12, and the other end is used to collect it in the collection device 13.

[0048] In this optional embodiment, the emulsion flat-bed filtration device achieves continuity and automation of the filtration process by fixing one end of the filter medium 3 to the reel 12 and collecting the other end in the collection device 13. This design not only improves filtration efficiency and reduces the complexity of manual operation, but also helps reduce media loss and environmental pollution during the filtration process. Simultaneously, the combined use of the reel 12 and the collection device 13 makes the replacement and maintenance of the filter medium 3 more convenient, thereby reducing maintenance costs and improving the stability and reliability of the equipment.

[0049] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. An emulsion flat bed filtration apparatus, characterized by, The filter tank (1) is provided with a filter medium inlet (18), and the first filter cavity (5) is located between the second filter cavity (6) and the filter medium inlet (18); the size of the first filter cavity (5) in the direction of the filter medium (3) penetrating the filter tank (1) is smaller than the size of the second filter cavity (6) in the direction of the filter medium (3) penetrating the filter tank (1).

2. The emulsion flat bed filter apparatus of claim 1, wherein, Further comprising a vacuum maintaining device (8) in communication with the first filter cavity (5).

3. The emulsion flat bed filter apparatus of claim 1, wherein, The vacuum maintaining device (8) comprises a liquid storage tube, one end of the liquid storage tube is in communication with the first filter cavity (5), and a curved section for storing liquid is arranged at the middle part of the liquid storage tube.

4. The emulsion flat bed filter apparatus of claim 3, wherein, The curved section is in the shape of U, W, V or S.

5. The emulsion flat bed filter apparatus of claim 4, wherein, The vacuum maintaining device (8) comprises a liquid storage box and a communication pipe; the liquid storage box is filled with liquid; the liquid storage box is in communication with the first filter cavity (5) through the communication pipe, and the liquid level of the liquid storage box is higher than the communication position of the liquid storage box and the communication pipe.

6. The emulsion flat bed filter apparatus of claim 3, wherein, Further comprising a vacuum pump (7), the inlet end of the vacuum pump (7) is in communication with the second filter cavity (6); the outlet end of the vacuum pump (7) is in communication with the dirty liquid cavity (4).

7. The emulsion flat bed filter apparatus of claim 1, wherein, Further comprising a chain bed (9) and a power device (10), the chain bed (9) penetrates the filter tank (1) in the direction of the filter medium (3) penetrating the filter tank (1), and the filter medium (3) is laid on the chain bed (9); the power device (10) is used for driving the chain bed (9) to move back and forth, and driving the filter medium (3) to move out of the filter tank (1).

8. The emulsion flat bed filter apparatus of claim 7, wherein, Further comprising a liquid level switch (11) and a controller (19), the liquid level switch (11) is used for detecting the liquid level in the dirty liquid cavity (4); the controller (19) is electrically connected with the liquid level switch (11), the vacuum pump (7) and the power device (10) respectively.

9. The emulsion flat bed filter apparatus of claim 8, wherein, Further comprising a winding drum (12) and a collecting device (13); one end of the filter medium (3) is wound on the winding drum (12), and the other end is used for being collected in the collecting device (13).

10. The emulsion flat bed filter apparatus of claim 1, wherein, ​

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