Filter cloth filtering tank bottom structure

Abstract

The utility model belongs to the field of filtering and washing equipment, and particularly relates to a filter cloth filtering tank bottom structure which comprises a base, a filtering bracket and filter cloth laid on the filtering bracket are detachably connected to the base, and the periphery of the filter cloth is fixed to the upper end of the periphery of the filtering bracket. A liquid outlet is formed in the filtering bracket; and a liquid outlet valve is arranged at the liquid outlet. The utility model provides a filter cloth filtering tank bottom structure capable of realizing bottom discharging, and materials after being filtered and washed are dissolved and discharged more quickly through bottom discharging of the tank bottom.

Description

Technical Field

[0001] This utility model belongs to the field of filtration and washing equipment, and specifically relates to a filter cloth filter tank bottom structure. Background Technology

[0002] A filter washing machine or filter washing and drying machine separates a crystallized solid-liquid mixture in a closed container using the pressure difference across a filter plate. The process involves filtration, washing, re-filtration, re-washing, filtration, and drying, all completed within the same machine. After these processes, the desired product is obtained, which is then dissolved and discharged. Currently, existing equipment typically has a drain port on the side wall of the tank near the filter plate to discharge the dissolved product. This structure results in slow drainage and leaves some liquid residue on the filter plate that cannot be discharged. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings and deficiencies of the existing technology and to provide a filter cloth filter tank bottom structure.

[0004] The technical solution adopted by this utility model is as follows: a filter cloth filter tank bottom structure, including a base, a filter bracket and a filter cloth laid on the filter bracket are detachably connected to the base, the outer periphery of the filter cloth is fixed to the upper end of the outer periphery of the filter bracket, and the filter bracket is provided with a drain port and a drain valve at the drain port.

[0005] A connecting flange is fixed on the filter bracket, the drain port is located in the connecting flange and a valve port is formed on the connecting flange corresponding to the drain port, and the drain valve is connected to the lower end of the connecting flange and has a discharge port communicating with the valve port.

[0006] The connecting flange forms a conical groove on the outer periphery of the drain port.

[0007] The upper end of the connecting flange is provided with at least one set of filter cloth tensioning mechanisms. Each set of filter cloth tensioning mechanisms includes a first filter cloth pressing block and a first fastening bolt. The filter cloth is disposed between the first filter cloth pressing block and the connecting flange. The first fastening bolt connects and secures the first filter cloth pressing block and the connecting flange.

[0008] The first filter cloth pressing block is ring-shaped, and a set of filter cloth tensioning mechanisms is provided with a number of first fastening bolts, which are evenly distributed in a ring.

[0009] The upper end of the connecting flange has a first mating groove that is larger at the top and smaller at the bottom. The shape of the first filter cloth pressing block is adapted to the shape of the first mating groove and is embedded in the first mating groove. The upper end of the first filter cloth pressing block has a countersunk hole that is adapted to the shape of the first fastening bolt.

[0010] A first O-ring is provided between the first filter cloth block and the connecting flange.

[0011] The drain valve includes a valve body, a valve core, a valve stem, and an actuator. The valve body is connected to the lower end of a connecting flange to form a valve cavity. The valve core is disposed within the valve cavity. One end of the valve stem extends into the valve cavity and connects to the valve core, while the other end connects to the actuator located outside the valve cavity. The discharge port is disposed on the valve body. The valve core includes a lower valve plate, an upper valve plate, and an elastic sealing ring. The lower valve plate is connected to the end of the valve stem. The outer end of the lower valve plate is provided with a first sealing groove, and the elastic sealing ring is embedded in the first sealing groove. The upper valve plate is fixedly connected to the lower valve plate and limits the elastic sealing ring. The upper valve plate extends into the drain port, and the elastic sealing ring is sealed to the connecting flange.

[0012] The upper valve plate is provided with a stud at its lower end, and the lower valve plate is provided with a threaded hole that is threaded to the stud at its upper end. The elastic sealing ring forms a planar seal with the upper valve plate, and a second sealing groove is formed between the elastic sealing ring and the lower valve plate. A second O-ring is embedded in the second sealing groove, and the second O-ring is sealed to the upper valve plate.

[0013] The filter bracket includes a filter plate with several through holes and a support ring fixed to the outer periphery of the filter plate. The connecting flange is fixed to the center of the filter plate, and the outer periphery of the filter cloth is fixed to the support ring, which is detachably mounted on the base.

[0014] The beneficial effects of this utility model are as follows: This utility model provides a filter cloth filter tank bottom structure for realizing bottom discharge. By discharging material from the bottom of the tank, the material after filtration and washing can be dissolved and discharged more quickly. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0016] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the lower discharge structure according to an embodiment of the present invention;

[0018] Figure 3 for Figure 2 Enlarged diagram of part A in the middle;

[0019] Figure 4 for Figure 1Enlarged diagram of part A in the middle;

[0020] In the diagram, the components are: base-1, filter bracket-2, drain port-201, connecting flange-202, conical groove-203, filter support plate-204, support ring-205, second filter cloth pressing block-206, second fastening bolt-207, filter cloth-3, drain valve-4, valve body-401, valve core-402, lower valve plate-4021, upper valve plate-4022, elastic sealing ring-4023, second O-ring seal-4024, valve stem-403, actuator-404, discharge port-405, first filter cloth pressing block-501, first fastening bolt-502, and first O-ring seal-503. Detailed Implementation

[0021] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0022] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0023] The directional and positional terms used in this utility model, such as up, down, front, back, left, right, inside, outside, top, bottom, side, etc., are only for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0024] like Figure 1 As shown, a filter cloth filter tank bottom structure includes a base 1. A filter bracket 2 and a filter cloth 3 laid on the filter bracket 2 are detachably connected to the base 1. The outer periphery of the filter cloth 3 is fixed to the upper outer periphery of the filter bracket 2. The filter bracket 2 is provided with a drain port 201 and a drain valve 4 at the drain port 201. The filter bracket 2 includes a filter plate 204 with several through holes and a support ring 205 fixed to the outer periphery of the filter plate 204. A connecting flange 202 is fixed at the center of the filter plate 204. The outer periphery of the filter cloth 3 is fixed to the support ring 205, and the support ring 205 is detachably mounted on the base 1. The fixing structure between the support ring 205 and the outer periphery of the filter cloth 3 is as follows... Figure 4 As shown, it includes an annular second filter cloth pressing block 206. The filter cloth 3 is circumferentially fixed between the second filter cloth pressing block 206 and the support ring 205 and is fixed by a number of second fastening bolts 207 evenly distributed in an annular shape.

[0025] like Figure 2As shown, a connecting flange 202 is fixed on the filter bracket 2. Specifically, the drain port 201 is set in the connecting flange 202 and a valve port is formed on the connecting flange 202 corresponding to the drain port 201. The drain valve 4 is connected to the lower end of the connecting flange 202 and has a discharge port 405 communicating with the valve port.

[0026] The connecting flange 202 forms a conical groove 203 on the outer periphery of the drain port 201, which makes the material dissolve and discharge faster and reduces liquid residue.

[0027] Furthermore, the upper end of the connecting flange 202 is provided with at least one set of filter cloth tensioning mechanisms. Each set of filter cloth tensioning mechanisms includes a first filter cloth pressing block 501 and a first fastening bolt 502. The filter cloth 3 is disposed between the first filter cloth pressing block 501 and the connecting flange 202. The first fastening bolt 502 connects and secures the first filter cloth pressing block 501 and the connecting flange 202. In this embodiment, the first filter cloth pressing block 501 is annular, and the set of filter cloth tensioning mechanisms includes several first fastening bolts 502, which are evenly distributed in a ring. That is, in this embodiment, the filter cloth tensioning mechanism forms an annular tension on the filter cloth above the connecting flange 202, ensuring that the filter cloth above the connecting flange 202 remains flat. This ensures that the flatness of the filter cloth is not affected during dissolution and discharge. Alternatively, several first filter cloth pressing blocks 501 can be provided to form several tensioning points on the filter cloth. Relatively speaking, the annular first filter cloth pressing block 501 provides the best fixing effect and is more convenient to install.

[0028] Furthermore, the upper end of the connecting flange 202 has a first mating groove that is larger at the top and smaller at the bottom. The shape of the first filter cloth pressing block 501 is adapted to the shape of the first mating groove and is embedded in the first mating groove. The upper end of the first filter cloth pressing block 501 has a countersunk hole that is adapted to the shape of the first fastening bolt 502. This makes the upper end of the connecting flange 202 nearly flat, avoiding obstruction to the flow of materials.

[0029] Furthermore, a first O-ring 503 is provided between the first filter cloth pressing block 501 and the connecting flange 202.

[0030] Furthermore, such as Figure 2 As shown, the drain valve 4 includes a valve body 401, a valve core 402, a valve stem 403, and an actuator 404. The valve body 401 is connected to the lower end of the connecting flange 202 to form a valve cavity. The valve core 402 is disposed in the valve cavity. One end of the valve stem 403 extends into the valve cavity and is connected to the valve core 402, while the other end is connected to the actuator 404 located outside the valve cavity. The discharge port 405 is disposed on the valve body 401.

[0031] like Figure 3As shown, the valve core 402 includes a lower valve plate 4021, an upper valve plate 4022, and an elastic sealing ring 4023. The lower valve plate 4021 is connected to the end of the valve stem 403. The outer end of the lower valve plate 4021 is provided with a first sealing groove, and the elastic sealing ring 4023 is embedded in the first sealing groove. The upper valve plate 4022 is fixedly connected to the lower valve plate 4021 and limits the elastic sealing ring 4023. The upper valve plate 4022 extends into the drain port 201, and the elastic sealing ring 4023 is sealed with the connecting flange 202. Specifically, the lower valve plate 4021 and the valve stem 403 are integrally formed. The lower end of the upper valve plate 4022 is provided with a stud, and the upper end of the lower valve plate 4021 is provided with a threaded hole for threaded connection with the stud. The elastic sealing ring 4023 is fixed between the lower valve plate 4021 and the upper valve plate 4022 through the threaded connection. Furthermore, a planar seal is formed between the elastic sealing ring 4023 and the upper valve plate 4022, and a second sealing groove is formed between the elastic sealing ring 4023 and the lower valve plate 4021. A second O-ring 4024 is embedded in the second sealing groove, and the second O-ring 4024 is in a sealing fit with the upper valve plate 4022. The second O-ring 4024 ensures the effectiveness of the seal between the upper valve plate 4022 and the lower valve plate 4021.

[0032] The filter cloth filter tank bottom structure of this embodiment has two drainage methods. One is the process of filtering and discharging the mother liquor. In this embodiment, the drain valve 4 is closed, like the structure of a conventional filter washing machine. Under the action of vacuum negative pressure, the material is separated into solid and liquid by the filter screen. The mother liquor is discharged through the through holes of the filter screen and the filter support plate 204 to the bottom of the filter support plate 204, and then discharged through the drain pipe. The second method is material dissolution and discharge. After the finished material after filtration and washing is dissolved by solvent, the drain valve 4 in this embodiment is opened to discharge the material.

[0033] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A filter cloth filter tank bottom structure comprising a base (1), a filter bracket (2) detachably connected to the base (1), and a filter cloth (3) laid on the filter bracket (2), the outer periphery of the filter cloth (3) being fixed to the outer periphery of the upper end of the filter bracket (2), characterized in that: The filter bracket (2) is provided with a liquid discharge port (201) and a liquid discharge valve (4) at the liquid discharge port (201). ​ 2. The filter cloth filter tank bottom structure according to claim 1, characterized by: The filter bracket (2) is fixed with a connecting flange (202), the liquid discharge port (201) is arranged in the connecting flange (202), and a valve port is formed on the connecting flange (202) corresponding to the liquid discharge port (201), the liquid discharge valve (4) is connected to the lower end of the connecting flange (202) and is provided with a discharge port (405) in communication with the valve port.

3. The filter cloth filter tank bottom structure according to claim 2, characterized by: The connecting flange (202) forms a conical groove (203) around the liquid discharge port (201).

4. The filter cloth filter tank bottom structure according to claim 2, characterized by: The upper end of the connecting flange (202) is provided with at least one set of filter cloth tensioning mechanism, a set of filter cloth tensioning mechanism includes a first filter cloth pressing block (501) and a first fastening bolt (502), the filter cloth (3) is arranged between the first filter cloth pressing block (501) and the connecting flange (202), and the first fastening bolt (502) connects and fastens the first filter cloth pressing block (501) and the connecting flange (202).

5. The filter cloth filter tank bottom structure according to claim 4, characterized by: The first filter cloth pressing block (501) is annular, a set of filter cloth tensioning mechanism is provided with a plurality of first fastening bolts (502) and the plurality of first fastening bolts (502) are annularly and uniformly distributed.

6. The filter cloth filter tank bottom structure according to claim 4 or 5, characterized in that: The upper end of the connecting flange (202) forms a first matching groove which is large at the top and small at the bottom, the shape of the first filter cloth pressing block (501) is adapted to the shape of the first matching groove and is embedded in the first matching groove, and the upper end of the first filter cloth pressing block (501) forms a countersunk hole which is adapted to the shape of the first fastening bolt (502).

7. The filter cloth filter tank bottom structure according to claim 4 or 5, characterized by: A first O-shaped sealing ring (503) is arranged between the first filter cloth pressing block (501) and the connecting flange (202).

8. The filter cloth filter tank bottom structure according to claim 2, characterized by: The liquid discharge valve (4) includes a valve body (401), a valve core (402), a valve rod (403), and an actuator (404), the valve body (401) is connected to the lower end of the connecting flange (202) and forms a valve cavity with the connecting flange (202), the valve core (402) is arranged in the valve cavity, one end of the valve rod (403) extends into the valve cavity and is connected with the valve core (402), and the other end is connected with the actuator (404) located outside the valve cavity, and the discharge port (405) is arranged on the valve body (401); the valve core (402) includes a lower valve plate (4021), an upper valve plate (4022), and an elastic sealing ring (4023), the lower valve plate (4021) is connected to the end of the valve rod (403), the outer end of the lower valve plate (4021) is provided with a first sealing embedding groove, the elastic sealing ring (4023) is embedded in the first sealing embedding groove, the upper valve plate (4022) is fixedly connected with the lower valve plate (4021) and forms a limit for the elastic sealing ring (4023), the upper valve plate (4022) extends into the liquid discharge port (201), and the elastic sealing ring (4023) is sealingly matched with the connecting flange (202).

9. The filter cloth filter tank bottom structure according to claim 8, characterized by: The upper valve plate (4022) is provided with a stud at the lower end, the lower valve plate (4021) is provided with a threaded hole at the upper end, the threaded hole is threadedly connected with the stud, a plane seal is formed between the elastic sealing ring (4023) and the upper valve plate (4022), a second sealing groove is formed between the elastic sealing ring (4023) and the lower valve plate (4021), a second O-shaped sealing ring (4024) is embedded in the second sealing groove, and the second O-shaped sealing ring (4024) is in sealing cooperation with the upper valve plate (4022).

10. The filter cloth filter tank bottom structure according to claim 2, characterized by: The filter bracket (2) comprises a filter support plate (204) provided with a plurality of through holes and a supporting ring (205) fixed to the outer periphery of the filter support plate (204), the connecting flange (202) is fixed to the center of the filter support plate (204), the outer periphery of the filter cloth (3) is fixed to the supporting ring (205), and the supporting ring (205) is detachably arranged on the base (1).

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