Efficient vacuum filter disc and multi-disc vacuum filter device

Abstract

According to the high-efficiency vacuum filter disc and the multi-disc vacuum filter device comprising the high-efficiency vacuum filter disc, the buffer cavity is arranged in the vacuum suction area, so that the stability of filtering and separating work of the vacuum filter disc is improved; and the problem that the vacuum pump and other devices suck filtrate and are damaged due to instantaneous suction efficiency fluctuation is effectively avoided. Wherein the efficient vacuum filter disc serving as a main mechanism part comprises a vacuum pipe, a suction branch pipe, a filter disc main body part and a filter plate part, and a hollow cavity is formed between the filter disc main body part and the filter plate part; the vacuum pipe sequentially penetrates through the filter disc main body part and the filter plate part, the suction branch pipe is located in the hollow cavity, and the top end of the suction branch pipe is connected to a partial section, located in the hollow cavity, of the vacuum pipe; a blocking baffle extending downwards is further connected and installed on the suction branch pipe, the lower negative pressure area is divided into a first cavity part and a second cavity part, and the suction branch pipe is located in the second cavity part.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum filter equipment technical field, concretely to a kind of efficient vacuum filter disc and the multiple-disc vacuum filter device comprising the efficient vacuum filter disc. BACKGROUND

[0002] Vacuum filter disc is a kind of commonly used solid-liquid separation equipment in industry, it is filtered by filter cloth or other porous material as filter medium, and solid particles in suspension are intercepted, and filtrate is extracted by filter medium under the action of negative pressure formed by vacuum pump.

[0003] As the Chinese invention patent document of application No. CN202410866790.5 discloses a disc type vacuum filter device, relating to vacuum filter equipment technical field, comprising: filter tank, controller, ceramic vacuum filter disc, vacuum pipe, speed reducer motor, anti-off frame, material scraping frame and conveyor;The filter tank is installed with vertically parallel, evenly spaced ceramic vacuum filter discs, the middle part of the both sides of ceramic vacuum filter disc is vertically butt-jointed with rotating shaft sleeve, the rotating shaft sleeve between multiple ceramic vacuum filter discs is sealed and relatively connected by flange plate, the rotating shaft sleeve at one end of filter tank is rotatably connected with filter tank through bearing seat, and the rotating shaft sleeve at the other end of filter tank is provided with speed reducer motor at the connection with filter tank. The filter device given by the invention patent scheme has the technical effect of efficient solid-liquid separation, and the solid particles and liquid in the material to be filtered can be efficiently separated by the rotation of the ceramic vacuum filter disc under the action of vacuum, which greatly improves the filtration efficiency and reduces the processing time and cost.

[0004] But the applicant finds that, for the filter disc device used in the filter device given in the above scheme, since the end of the fixed branch pipe connected with the vacuum pipe and used for forming the negative pressure state area inside the filter disc is directly introduced into the filter chamber, at this time, the filtrate part that passes through the surface of the filter disc will directly enter the filter chamber under the action of vacuum suction. Although the structure of the filter disc can realize the effect of discharging filtrate outward through pores, but due to the change of liquid concentration to be treated, the possible local damage of vacuum filter disc and other factors in the process of suction filtration, it is easy to cause too much filtrate entering the negative pressure chamber instantaneously. At this time, this part of filtrate is extremely easy to be sucked into the vacuum pipe through the fixed branch pipe, and then dispersed to other vacuum filter discs through the vacuum pipe or even into the vacuum pump device, which not only may cause the reduction of filtration effect, but also may cause irreversible local damage to the device.

[0005] In view of the above problems, the utility model provides a kind of efficient vacuum filter disc and the multiple disc vacuum filter device comprising the efficient vacuum filter disc, buffer cavity is set in vacuum suction area, to improve the stability of the filtration separation work of vacuum filter disc, effectively avoid the problem that vacuum pump and other device equipment are inhaled filtrate and are damaged due to instantaneous suction efficiency fluctuation. Utility model content

[0006] The utility model provides a kind of efficient vacuum filter disc and the multiple disc vacuum filter device comprising the efficient vacuum filter disc, buffer cavity is set in vacuum suction area, to improve the stability of the filtration separation work of vacuum filter disc, effectively avoid the problem that vacuum pump and other device equipment are inhaled filtrate and are damaged due to instantaneous suction efficiency fluctuation.

[0007] The above technical purpose of the utility model is realized by the following technical scheme:

[0008] An efficient vacuum filter disc, comprising a vacuum pipe connected to an external vacuum pump device and a suction branch pipe in communication with the vacuum pipe, further comprising a filter disc main body portion and a filter plate portion installed in each other and in a disc shape, a hollow chamber in a disc shape is formed between the filter disc main body portion and the filter plate portion; the vacuum pipe passes through the filter disc main body portion and the filter plate portion in sequence along the horizontal direction, the suction branch pipe is located in the hollow chamber, and the top end of the suction branch pipe is connected to the part of the vacuum pipe located in the hollow chamber; a movable adjusting assembly for adjusting the size of the negative pressure area in the hollow chamber is arranged in the hollow chamber, a downward extending barrier baffle is further connected and installed on the suction branch pipe, the barrier baffle separates the lower part of the negative pressure area into a first chamber portion on the side of the filter plate portion and a second chamber portion away from the filter plate portion, and the suction branch pipe is located in the second chamber portion.

[0009] As a preferred embodiment of the utility model, the lower edge of the barrier baffle is tightly abutted and attached to the inner wall surface of the filter disc main body portion, and a through opening for connecting the first chamber portion and the second chamber portion is arranged at the upper part of the barrier baffle.

[0010] As a preferred embodiment of the utility model, the through opening is located at the lateral position of the barrier baffle away from the suction branch pipe in the horizontal direction.

[0011] As a preferred embodiment of the utility model, a transparent observation area in a circular ring shape is further formed in the central region of the filter plate portion.

[0012] As a preferred embodiment of the utility model, a protruding portion for agitating the waste liquid to be treated in the filter tank is further arranged on the back surface of the filter disc main body portion.

[0013] As the preferred of the utility model, the drying assembly is arranged on the upper part of the vacuum pipe in the hollow chamber.

[0014] A multi-disc vacuum filter device comprises a filter tank for storing waste liquid, a cleaning mechanism for scraping the material attached to the filter plate part, a plurality of high-efficiency vacuum filter discs, the high-efficiency vacuum filter discs are arranged along the same horizontal direction center axis and are jointly arranged on the vacuum pipe, and the high-efficiency vacuum filter discs can jointly rotate at a uniform speed under the driving of the driving device.

[0015] As the preferred of the utility model, the material thickness control mechanism is arranged on the opposite side of the cleaning mechanism and is used for separating the material attached to the surface of the filter plate part.

[0016] In summary, the utility model can realize the following beneficial effects:

[0017] The high-efficiency vacuum filter disc divides the internal space area of the filter disc into a first chamber part and a second chamber part, in the structure, when the instantaneous suction efficiency is too high or the filter disc is locally damaged, the first chamber part separated from the lower end of the suction branch pipe can temporarily store the filtrate, thereby effectively avoiding that the filtrate is sucked into the vacuum pump suction system in the filtration process, affecting the work of other connected vacuum filter discs, and effectively avoiding damage of the vacuum negative pressure system. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural composition schematic view of the high-efficiency vacuum filter disc;

[0019] Figure 2 It is a sectional structure schematic view of the filter plate part associated part in the high-efficiency vacuum filter disc;

[0020] Figure 3 It is a front structure schematic view of the high-efficiency vacuum filter disc;

[0021] Figure 4 It is a back structure schematic view of the high-efficiency vacuum filter disc;

[0022] Figure 5 It is a whole structure layout schematic view of the multi-disc vacuum filter device;

[0023] Figure 6 It is a cooperation installation relationship structure schematic view of one high-efficiency vacuum filter disc and other components in the multi-disc vacuum filter device.

[0024] In the drawing:

[0025] 1 - high-efficiency vacuum filter disc;

[0026] 2 - vacuum tube;

[0027] 3 - suction branch pipe;

[0028] 4 - filter disc main body part, 401 - protruding part;

[0029] 5 - filter plate part, 501 - transparent observation area;

[0030] 6 - movable adjusting assembly;

[0031] 7 - blocking baffle, 701 - through hole;

[0032] 8 - negative pressure area, 801 - first chamber part, 802 - second chamber part;

[0033] 9 - drying assembly;

[0034] A - filter tank, B - cleaning mechanism, D - material thickness control mechanism. DETAILED DESCRIPTION

[0035] The following specific embodiments are only an explanation of the utility model, and are not a limitation of the utility model, and those skilled in the art can make modifications without creative contribution according to the needs after reading the specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

[0036] The scheme is realized through the following technical means:

[0037] Embodiment: in the embodiment scheme, an efficient vacuum filter disc 1 and a multi-disc vacuum filter device containing the efficient vacuum filter disc 1 are given, the buffer cavity is arranged in the vacuum suction area, so that the stability of the filtration and separation work of the vacuum filter disc is improved, and the problem that the vacuum pump and other devices and equipment are damaged due to the suction of filtrate caused by the instantaneous suction efficiency fluctuation is effectively avoided.

[0038] Specifically, the overall structure of the efficient vacuum filter disc 1 can refer to the drawings in the specification Figure 1The high-efficiency vacuum filter disc 1 is shown in the description. First, the structure of the high-efficiency vacuum filter disc 1 here contains a vacuum pipe 2 connected to an external vacuum pump device and a suction branch pipe 3 in communication with the vacuum pipe 2, and also contains a filter disc body part 4 and a filter plate part 5 that are installed in a cover and are in a disc shape, and a hollow chamber in a disc shape is formed between the filter disc body part 4 and the filter plate part 5; the vacuum pipe 2 passes through the filter disc body part 4 and the filter plate part 5 in sequence along the horizontal direction, the suction branch pipe 3 is located in the hollow chamber, and the top end of the suction branch pipe 3 is connected to the part of the vacuum pipe 2 located in the hollow chamber. At this time, when the external vacuum pump is started, air can be sucked out through the conduction path of the vacuum pipe 2 and the suction branch pipe 3, so that a negative pressure area 8 is formed in the hollow chamber. It should be noted that in the high-efficiency vacuum filter disc 1 device given in this embodiment, only the filter plate part 5 on the front side has a filtering effect on the waste liquid to be treated, and the filter disc body part 4 on the rear side does not have this effect. At this time, when the lower part of the filter disc is immersed in the filter tank A containing the waste liquid to be treated and continues to rotate in the same direction, since the hollow chamber is in a negative pressure state at this time, the impurity material part in the waste liquid to be treated will be blocked outside and tightly adsorbed on the surface of the filter plate part 5, and the filtrate part after filtering will be immersed in the negative pressure area 8 through the filter plate part 5. In the process of continuously rotating the high-efficiency vacuum filter disc 1 around its center, each part of the filter disc will continuously contact the waste liquid in the filter tank A, thereby realizing continuous filtering effect. Of course, according to the technical solution given in the existing patent application CN202410866790.5, the hollow chamber can also be provided with a movable adjusting assembly 6 for adjusting the size of the negative pressure area 8 in the hollow chamber, which is used to adjust and control the filter plate area and the filtering efficiency according to the actual situation.

[0039] However, the inventor found that for the vacuum filter disc structure under the traditional structure, at the initial stage of filtration, the impurities in the filtrate are relatively high, and a large suction efficiency is required for screening filtration. As the filtration process continues, part of the impurities in the waste liquid to be treated in the filter tank A is gradually screened and discharged, at which time the filter plate part 5 gradually reduces the resistance of the filtrate entering the filter disc, and thus the rate of the filtrate entering the inside is accelerated. In addition, at the initial stage of the filtration screening process, due to the debugging and assembly errors, there may be gaps in the filter disc, or due to the continuous operation of the equipment, there may be small damage on the filter disc, which also causes the rate of the filtrate entering the hollow chamber to increase rapidly. At this time, it is easy for the filtrate to be sucked into the vacuum pump by the suction branch pipe 3 through the vacuum pipe 2, which not only may hinder the filtration effect of other filter disc devices connected in communication, but also may cause damage to other devices.

[0040] Based on the above considerations, in the present embodiment, the inventor creatively connects and installs a downward extending blocking baffle 7 on the suction branch pipe 3 based on the existing filter disc structure, which separates the lower part of the negative pressure area 8 into a first chamber part 801 on the side of the filter plate part 5 and a second chamber part 802 away from the filter plate part 5, and the suction branch pipe 3 is located in the second chamber part 802. At this time, if the above-mentioned filtrate or waste liquid rapidly enters the filter disc, the front first chamber part 801 can temporarily store this part of the liquid, and will not enter the second chamber part 802 provided with the suction branch pipe 3, and of course the above-mentioned negative working state is avoided. The lower edge of the blocking baffle 7 needs to be closely attached to the inner wall surface of the filter disc main part 4, on the one hand, it will not cause excessive resistance to the rotation of the filter disc main part 4, and on the other hand, it can limit the free flow of the filtrate from the first chamber part 801 to the second chamber part 802 between the inner edge of the filter disc main part 4 and the bottom edge of the blocking baffle 7.

[0041] Of course, the role of the blocking baffle 7 is to divide the negative pressure area 8 into two different functional areas, but the structure even needs to ensure that it does not hinder the normal filtering and screening process. Therefore, in order to ensure the smoothness of the negative pressure suction process, a through port 701 that communicates the first chamber part 801 and the second chamber part 802 should be provided on the upper part of the blocking baffle 7, and further, the through port 701 needs to be opened at the lateral position of the blocking baffle 7 away from the suction branch pipe 3 in the horizontal direction. At this time, in the normal suction and filtering state, the flowing air will flow from the first chamber part 801 to the second chamber part 802 through the through port 701, and the filtrate after the normal filtering process will gradually enter the first chamber part 801; When the abnormal situation of the instantaneous entering rate of the filtrate becoming larger or being damaged occurs, the liquid entering the high-efficiency vacuum filter disc 1 will overflow from the first chamber part 801, and flow to the second chamber part 802 through the through port 701 opened on the blocking baffle 7, so it will not be directly sucked out by the suction branch pipe 3, thereby giving the staff more discovery time and greater buffer response space, and improving the safety of equipment operation.

[0042] Further, a transparent observation area 501 in the form of a circular ring can also be formed in the central area of the filter plate part 5. Because, during the filtering and screening process, only the part of the filter plate part 5 in the form of a ring needs to be in contact with the filtrate in the filter tank A continuously, and the part close to the vacuum pipe 2 does not need to be actually in contact with the waste liquid and play a filtering effect. At this time, the filter plate part 5 here is made of transparent composite materials such as resin, which can conveniently realize the observation of the liquid level state in the first chamber part 801 and the second chamber part 802 by the staff, thereby realizing more timely and efficient response processing.

[0043] Further, if the flowability of the waste liquid to be treated in the filter tank A is poor, it is easy to cause the waste in the filtrate to deposit, thereby reducing the effect of the filtering and screening process. Therefore, in the embodiment, a protruding part 401 for agitating the waste liquid to be treated in the filter tank A is also provided on the back of the filter disc main part 4, so that the waste liquid to be treated in the tank is fully agitated during the rotation of the vacuum filter plate. Of course, referring to the structure in the patent application with application number CN202410866790.5, a drying assembly 9 is also provided in the hollow chamber at the upper part of the vacuum pipe 2, so as to more conveniently strip the impurity materials attached to the outer surface of the filter plate part 5 from the surface. For this part of the structure, the existing technical solution has been fully described, and will not be expanded here.

[0044] In the embodiment, a multi-plate vacuum filter device is also provided, which comprises a filter tank A for storing waste liquid, a cleaning mechanism B for scraping the material adhered to the filter plate 5, and a plurality of high-efficiency vacuum filter plates 1. In the filter device, the high-efficiency vacuum filter plates 1 are arranged along the same horizontal direction of the central axis and are jointly arranged on the same vacuum pipe 2, and each high-efficiency vacuum filter plate 1 can be driven by the driving device to rotate at a uniform speed. For example, as shown in the accompanying drawings, the driving device is selected as a motor device, and each filter plate 5 is continuously driven to rotate through a gear mechanism or a belt transmission mechanism. Further, the device also comprises a material thickness control mechanism D arranged on the opposite side of the cleaning mechanism B, which is used to separate the excessive material adhered to the surface of the filter plate 5 from the filter plate 5. For the specific description of this part of the mechanism, the structure in the patent application with the application number CN202410866790.5 can be referred to for implementation, which will not be expanded here. Figure 5

[0045] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.​

Claims

1. A high-efficiency vacuum filter disc, characterized in that: The device includes a vacuum tube (2) connected to an external vacuum pump and a suction branch pipe (3) connected to the vacuum tube (2). It also includes a filter disc body (4) and a filter plate (5) that are mutually capped and arranged in a disc shape. A disc-shaped hollow cavity is formed between the filter disc body (4) and the filter plate (5). The vacuum tube (2) passes horizontally through the filter disc body (4) and the filter plate (5). The suction branch pipe (3) is located within the hollow cavity, and its top end is connected to the vacuum tube. The tube (2) is located on a section inside the hollow cavity; an adjustable assembly (6) for adjusting the size of the negative pressure area (8) in the hollow cavity is provided in the hollow cavity, and a downwardly extending baffle (7) is also connected and installed on the suction branch tube (3). The baffle (7) divides the lower part of the negative pressure area (8) into a first chamber (801) on the side of the filter plate (5) and a second chamber (802) on the side away from the filter plate (5). The suction branch tube (3) is located in the second chamber (802).

2. The high-efficiency vacuum filter disc according to claim 1, characterized in that: The lower edge of the barrier baffle (7) is closely abutted against the inner wall of the filter disc body (4), and a guide port (701) connecting the first chamber (801) and the second chamber (802) is provided on the upper part of the barrier baffle (7).

3. The high-efficiency vacuum filter disc according to claim 2, characterized in that: The guide port (701) is located on the barrier baffle (7) at a lateral position away from the suction branch tube (3) in the horizontal direction.

4. The high-efficiency vacuum filter disc according to claim 3, characterized in that: A circular transparent observation area (501) is also formed in the central region of the filter plate section (5).

5. The high-efficiency vacuum filter disc according to claim 4, characterized in that: On the back of the filter disc body (4), there is also a protrusion (401) for agitating the waste liquid to be treated in the filter tank (A).

6. The high-efficiency vacuum filter disc according to claim 5, characterized in that: A drying assembly (9) located on the upper part of the vacuum tube (2) is also provided in the hollow cavity.

7. A multi-disc vacuum filtration device, comprising a filter tank (A) for storing waste liquid and a cleaning mechanism (B) for scraping off material adhering to the filter plate portion (5), characterized in that: The device includes several high-efficiency vacuum filter discs (1) as described in any one of claims 1-6. Each high-efficiency vacuum filter disc (1) is arranged along the central axis extending in the same horizontal direction and is mounted on the same vacuum tube (2). Each high-efficiency vacuum filter disc (1) can rotate together at a uniform speed under the drive of the driving device.

8. The multi-disc vacuum filtration device according to claim 7, characterized in that: It includes a material thickness control mechanism (D) disposed on the opposite side of the cleaning mechanism (B) for removing excess material adhering to the surface of the filter plate (5) from the filter plate (5).

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