Underflow type filter plate for filter press

Abstract

The utility model discloses an underflow type filter plate for a filter press, which comprises a filter plate body, the filter plate body comprises a filter plate frame and a filter pressing part, the filter pressing part is arranged in the middle of the filter plate frame, the thickness of the filter plate frame is larger than that of the filter pressing part, and the inside of the filter pressing part is in a cavity shape and can bulge outwards; a feeding hole, a squeezing hole and a liquid outlet are formed in the filter plate frame, the feeding hole, the squeezing hole and the liquid outlet respectively penetrate through the filter plate frame, one side of the squeezing hole is communicated with the inner cavity of the filter pressing part, and one side of the liquid outlet is communicated with the inner side wall of the filter plate frame. The liquid outlets are formed in the filter plate frame, and a uniform backflow path is formed among the liquid outlets, so that filtered backflow liquid flows in the filter plate body in an undercurrent manner, the backflow mode that the filtering liquid is externally provided with a backflow pipeline is replaced, equipment is simplified, and the size of the equipment is reduced; and the filtrate adopts an undercurrent backflow mode, so that the phenomena of dripping leakage and leakage can be effectively reduced, and the filtrate can be collected more quickly and conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of purification equipment, in particular to a dark flow filter plate for a filter press. Background Art

[0002] The filter plate of chamber filter press is an important part of the filter press. Whether its structural design is reasonable has an important influence on the performance of the filter press. In order to improve the structure of the filter plate, people have conducted long-term exploration and proposed various solutions.

[0003] The patent with publication number CN2339280Y discloses a filter plate of a box filter press, including a feed port, a support convexity, a filter convexity, a reserved hole, a circular hole, and a drainage channel. The drainage channel and the circular hole in the published technical solution are arranged at the bottom of the filter plate frame, and the filter convexity is arranged vertically. When the above equipment is in use, the reflux liquid passing through each filter plate is separately led out from one side of the filter plate. Since each reflux interface after filtration is separately arranged on the outside of the filter plate, dripping occurs between the reflux pipelines, and the external placement of the reflux pipeline will increase the floor space of the filtration equipment and increase the difficulty for operators to install and maintain the equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a dark flow filter plate for a filter press to solve the problems raised in the above background technology. The following technical solutions are provided: a dark flow filter plate for a filter press

[0005] The filter plate body comprises a filter plate frame and a filter press part, the filter press part is arranged in the middle of the filter plate frame, and the thickness of the filter plate frame is wider than that of the filter press part, the interior of the filter press part is cavity-shaped and can bulge outward; the filter plate frame is provided with a feed inlet, a pressing port and a liquid outlet, the feed inlet, the pressing port and the liquid outlet respectively penetrate the filter plate frame, and one side of the pressing port is connected with the internal cavity of the filter press part, and one side of the liquid outlet is connected with the inner wall of the filter plate frame.

[0006] In this technical solution, when the filter plate of the chamber filter press is used, firstly, several filter plate bodies are arranged together in sequence for installation and compression, and the interior of the filter press is in a cavity state, and water is injected to expand it. After the equipment is installed, the filter plate bodies are sealed and gaps are left between the exteriors of the filter presses. The fluid to be filtered is pumped into each gap from the feed port through a pressure device, and then water is injected into the pressing port to make the filter press bulge. The bulging filter press filters and squeezes the fluid in the gap, and the squeezed fluid flows back uniformly through the liquid outlet, and finally the reflux liquid is collected at one end of the liquid outlet. Thus, the reflux mode of the filter plate's original external reflux pipe is changed to an undercurrent inside the filter plate body, simplifying the equipment for filtrate reflux.

[0007] In any of the above technical solutions, further, a liquid outlet pipe is provided on one side of the liquid outlet, the liquid outlet pipe is arranged inside the filter plate frame, and the other end of the liquid outlet pipe is opened on the inner wall of the filter plate frame.

[0008] An observation port is also provided on the filter plate frame, a guide groove is opened on one side of the filter plate frame, and one end of the guide groove is connected to the liquid outlet pipeline through a guide pipe.

[0009] In this technical solution, the filtered liquid flows from the circular hole to the liquid outlet through the liquid outlet pipe. Because the filter plate bodies are pressed against each other during the use of the equipment after installation, a reflux path of the reflux liquid is formed between the liquid outlets, so that the reflux liquid is changed to flow darkly inside the device, thereby simplifying the reflux pipeline of the equipment. In addition, during the filtration process, since the entire reflux path is darkly flowing, the operator can monitor the filtration process by observing the color and state of the filtrate through the observation port.

[0010] In any of the above technical solutions, further, guide parts are provided on both sides of the filter plate frame, and a sealing groove is provided between the connection between the filter plate frame and the filter press part; and a back-blowing port is also provided on the filter plate frame.

[0011] In this technical solution, when the filter plate body is being installed, in order to further ensure that the entire device does not drip or leak during use, a rubber gasket or other type of sealing ring is placed in the sealing groove to solve the problem of loose butt joint of the filter plate body. When the filter plate bodies are butt-jointed and installed, the two ends of the guide part are respectively suspended on the main beam, and the main beam can be inserted under the guide part so that the entire filter plate body is lifted by the guide part to achieve installation and butt joint between the filter plate bodies. Here, the guide part is a concave groove type, and the guide part can be an arc or a convex rectangle according to actual production needs.

[0012] The function of the backblowing port during filter pressing is: the backblowing ports are pressed and connected to form a pipeline, and the interface of the synthetic pipeline is then connected to the feed port through an external pipeline, and air is blown to the other end of the backblowing port, and the gas finally enters the feed port. Since the moisture at the feed port is relatively high, the filter part cannot squeeze this place during the filter pressing process, so the moisture at the feed port is blown to the filter pressing part again by blowing air to the backblowing port for filter pressing.

[0013] The beneficial effect of the utility model is that after each filter plate body is installed, a unified reflux path is formed between each liquid outlet by opening a liquid outlet inside the filter plate frame, so that the filtered reflux liquid flows darkly in the filter plate body, thereby replacing the reflux method of the reflux pipe of the filtrate outside, simplifying the equipment and reducing the size of the equipment. In addition, the dark reflux method of the filtrate can effectively reduce dripping and leakage, making the collection of the filtrate faster and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the appearance of the utility model;

[0015] Figure 2 yes Figure 1 A partial enlarged schematic diagram of

[0016] Figure 3 It is a cross-sectional view of the structure at the liquid outlet.

[0017] The reference numerals in the figure are: 10, filter plate body; 11, filter plate frame; 12, filter press part; 13, sealing groove; 14, guide part; 20, feed inlet; 30, pressing port; 40, liquid outlet; 41, liquid outlet pipe; 42, circular hole; 43, guide groove; 44, guide pipe; 50, observation port; 60, backblowing port. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0019] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0020] Embodiment 1:

[0021] like Figure 1-3As shown, the present embodiment provides an underflow filter plate for a filter press, comprising a filter plate body 10, the filter plate body 10 comprising a filter plate frame 11 and a filter press portion 12, the filter press portion 12 being arranged in the middle of the filter plate frame 11, and the thickness of the filter plate frame 11 is wider than the thickness of the filter press portion 12, the interior of the filter press portion 12 is in a cavity shape and can bulge outward; a feed inlet 20, a pressing port 30 and a liquid outlet 40 are provided on the filter plate frame 11, the feed inlet 20, the pressing port 30 and the liquid outlet 40 respectively penetrate the filter plate frame 11, and one side of the pressing port 30 is connected to the internal cavity of the filter press portion 12, and one side of the liquid outlet 40 is connected to the inner wall of the filter plate frame 11.

[0022] In the technical scheme, when the filter plate of the chamber filter press is used, firstly, a plurality of filter plate bodies 10 are arranged together in sequence for installation and compression, and the interior of the filter press part 12 is in a cavity state, and water is injected to expand it. When the equipment is installed, the filter plate bodies 10 are sealed and there are gaps between the exteriors of the filter press parts 12. The fluid to be filtered is pumped into each gap from the feed port 20 through a pressure device, and then water is injected into the pressing port 30 to make the filter press part 12 bulge. The bulging filter press part 12 filters and squeezes the fluid in the gap, and the squeezed fluid is uniformly refluxed through the liquid outlet 40, and finally the refluxed liquid is collected at one end of the liquid outlet 40. Thus, the reflux mode of the filter plate, which originally had an external reflux pipe, is changed to an undercurrent inside the filter plate body 10, simplifying the equipment for filtrate reflux.

[0023] Embodiment 2:

[0024] like Figure 1-3 As shown, a liquid outlet pipe 41 is provided on one side of the liquid outlet 40 . The liquid outlet pipe 41 is arranged inside the filter plate frame 11 , and the other end of the liquid outlet pipe 41 is opened on the inner wall of the filter plate frame 11 .

[0025] An observation port 50 is also provided on the filter plate frame 11 . A guide groove 43 is provided on one side of the filter plate frame 11 , and one end of the guide groove 43 is connected to the liquid outlet pipe 41 through a guide pipe 44 .

[0026] In the present technical solution, the filtered liquid flows from the circular hole 42 to the liquid outlet 40 via the liquid outlet pipe 41. Because the filter plate bodies 10 are pressed against each other during the use of the device after installation, a reflux path of the reflux liquid is formed between the liquid outlets 40, so that the reflux liquid is changed to flow darkly inside the device, thereby simplifying the reflux pipeline of the device. In addition, during the filtration process, since the entire reflux path is darkly flowing, the operator can monitor the filtration process by observing the color and state of the filtrate through the observation port 50.

[0027] Embodiment 3:

[0028] like Figure 1As shown, guide parts 14 are provided on both sides of the filter plate frame 11 , and a sealing groove 13 is provided between the connection between the filter plate frame 11 and the filter press part 12 ; a back-blowing port 60 is also provided on the filter plate frame 11 .

[0029] In the present technical solution, when the filter plate body 10 is installed, in order to further ensure that the entire device does not drip or leak during use, a rubber gasket or other type of sealing ring is placed in the sealing groove 13 to solve the problem of loose butt joint of the filter plate body 10. When the filter plate bodies 10 are butt-jointed and installed, both ends of the guide part 14 are respectively suspended on the main beam, and the main beam can be inserted under the guide part 14 so that the entire filter plate body 10 is lifted by the guide part 14 to achieve installation and butt joint between the filter plate bodies 10. Here, the guide part 14 is a concave groove type, and the guide part 14 can be an arc or a convex rectangle according to actual production needs.

[0030] During the filter press, the function of the backblowing port 60 is as follows: the backblowing ports 60 are pressed and connected to form a pipeline, and the interface of the synthetic pipeline is then connected to the feed port 20 through an external pipeline, and air is blown to the other end of the backblowing port 60, and the gas finally enters the feed port 20. Since the moisture at the feed port 20 is relatively high, the filter part 12 cannot squeeze this place during the filter press, so the moisture at the feed port 20 is blown to the filter press part 12 again for filter press by blowing air to the backblowing port 60.

[0031] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A dark flow filter plate for a filter press, comprising a filter plate body (10), characterized in that: The filter plate body (10) comprises a filter plate frame (11) and a filter press part (12); the filter press part (12) is arranged in the middle of the filter plate frame (11); the thickness of the filter plate frame (11) is wider than that of the filter press part (12); the interior of the filter press part (12) is in the shape of a cavity and can bulge outwards; the filter plate frame (11) is provided with a feed inlet (20), a pressing port (30) and a liquid outlet (40); the feed inlet (20), the pressing port (30) and the liquid outlet (40) respectively penetrate the filter plate frame (11); one side of the pressing port (30) is communicated with the internal cavity of the filter press part (12); and one side of the liquid outlet (40) is connected with the inner side wall of the filter plate frame (11).

2. The underflow filter plate for a filter press according to claim 1, characterized in that: The filter plate frame (11) is also provided with a back-blowing port (60).

3. The underflow filter plate for a filter press according to claim 1, characterized in that: A liquid outlet pipe (41) is provided on one side of the liquid outlet (40), the liquid outlet pipe (41) is arranged inside the filter plate frame (11), and the other end of the liquid outlet pipe (41) is opened on the inner side wall of the filter plate frame (11).

4. The underflow filter plate for a filter press according to claim 3, characterized in that: An observation port (50) is also provided on the filter plate frame (11), a guide groove (43) is provided on one side of the filter plate frame (11), and one end of the guide groove (43) is connected to the liquid outlet pipe (41) via a guide pipe (44).

5. The underflow filter plate for a filter press according to claim 1, characterized in that: Guide portions (14) are provided on both sides of the filter plate frame (11), and a sealing groove (13) is provided between the connection between the filter plate frame (11) and the filter press portion (12).

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