Sewage collecting and discharging device of plate-and-frame filter press

Abstract

The utility model relates to the technical field of plate-and-frame filter press sewage treatment, and particularly discloses a plate-and-frame filter press sewage collecting and discharging device which comprises a filtrate pipeline used for collection and drainage, a first filtering assembly and a second filtering assembly, the first filtering assembly and the second filtering assembly are combined with the filtrate pipeline, and the first filtering assembly and the second filtering assembly are combined through a communicating pipeline; the filter assembly I comprises a cylinder I, and a rotating cylinder is arranged at the middle section position of the cylinder I and is used for centrifugally filtering filtrate; according to the utility model, through the combination of the filter assembly I and the filter assembly II, the filter press liquid is treated again, and the filter press liquid can be filtered again in a centrifugal filtration manner, so that the influence of residues is reduced as much as possible, and the filter press liquid is more stable. And the arranged communicating pipeline, the filtrate pipeline, the filter assembly I and the filter assembly II form a whole filter main body, and the whole filter main body can be combined with a liquid outlet pipeline of the filter press, so that convenient assembly and disassembly are realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to plate and frame filter press sewage treatment technical field, concretely is a plate and frame filter press sewage collection and discharge device. BACKGROUND

[0002] Plate and frame filter press is a kind of commonly used solid-liquid separation equipment, is widely used in sewage sludge treatment, chemical industry, pharmacy etc.Industry.For example, the waste residue produced in the process of polyaluminum chloride production is filtered, although the content of suspended solids and sludge in the sewage treated by plate and frame filter press is greatly reduced, but there can be problems such as suspended solids and particulate matter residues, direct discharge can exist pollution problem, and the residual value of residual is not utilized, based on this, the present application provides a plate and frame filter press sewage collection and discharge device. SUMMARY

[0003] In view of the deficiency of prior art, the utility model provides a plate and frame filter press sewage collection and discharge device, solve the sewage after being treated by plate and frame filter press although greatly reduce the content of suspended solids and sludge, but there can be problems such as suspended solids and particulate matter residues, direct discharge can exist pollution problem.

[0004] The plate and frame filter press sewage collection and discharge device of the utility model, including the filtrate pipeline and filter assembly one and filter assembly two combined with the filtrate pipeline for collecting and leading flow, filter assembly one and filter assembly two are combined by communication pipeline between them;

[0005] The filter assembly one includes cylinder body one, the middle section position of cylinder body one is provided with rotating cylinder, is used to carry out centrifugal filtration to filtrate;

[0006] The filter assembly two includes cylinder body two, the middle section of cylinder body two is provided with pressure cylinder, the inside of pressure cylinder is provided with filter area, is used to carry out pressure filtration to filtrate;

[0007] The bottom of cylinder body two is provided with water outlet, is used to guide filtrate to discharge.

[0008] As a further improvement of the utility model, the top of cylinder body one is communicated with one end of filtrate pipeline, the middle part of cylinder body one is provided with two symmetrically arranged connecting pieces at both ends of rotating cylinder, and the connecting pieces are used to close the rotating cylinder.

[0009] As a further improvement of the utility model, the rotating cylinder includes shell one, the inside of shell one is provided with fixed plate, the bottom of fixed plate is provided with driving part, is used to drive fixed plate to rotate along the central axis of rotating cylinder.

[0010] As a further improvement of the utility model, the top of the fixed plate is provided with a filter core, a downward groove is formed in the middle of the filter core, and the groove corresponds to the end of the filtrate pipeline extending to the cylinder one, a filter plate is arranged on the outside of the filter core at the top of the fixed plate, and the filter plate is recessed at a preset angle downward to receive the liquid filtered by the filter core.

[0011] As a further improvement of the utility model, the fixed plate is connected with the driving member through a connecting column, and the connecting column is located at the bottom center of the fixed plate.

[0012] As a further improvement of the utility model, the top of the cylinder two is provided with a sealing cover, the sealing cover is communicated with one end of the communication pipeline, the other end of the communication pipeline is penetrated through one side of the cylinder one and located below the rotating cylinder.

[0013] As a further improvement of the utility model, the pressure cylinder comprises an outer shell two, one or more flanges are arranged on the inner side of the outer shell two, and the flanges are linearly distributed along the central axis of the outer shell two.

[0014] As a further improvement of the utility model, a filter area is arranged between every two flanges to filter the filtrate, a filter frame is arranged in the middle of the flange, and a filter medium is arranged at the filter frame.

[0015] As a further improvement of the utility model, a support frame is arranged at the bottom of the last flange on the inner side of the outer shell two, a positioning hole is arranged in the middle of the support frame to position the filter frame, a sealing groove is arranged at the top and the bottom of the outer shell two, the pressure cylinder is sealingly fixed to the middle section of the cylinder two through the sealing groove, and the support frame is evenly divided along the central axis of the outer shell two to form one or more filter areas to drain the filtrate.

[0016] As a further improvement of the utility model, the bottom of the filter assembly one and the filter assembly two is provided with a fixing frame to support them.

[0017] Compared with the prior art, the utility model has the beneficial effects as follows:

[0018] The combination of the filter assembly one and the filter assembly two realizes the reprocessing of the pressure filtrate, the reprocessing of the filtrate is realized through the centrifugal filtration, the influence of the residual is reduced as much as possible, the communication pipeline, the filtrate pipeline, the filter assembly one and the filter assembly two form a whole filter main body, the filter main body can be combined with the liquid outlet pipeline of the filter press to realize convenient installation and disassembly, and the use of the pressure cylinder and the rotating cylinder can also be conveniently replaced and cleaned, and the needs of use are met. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

[0020] Figure 1 It is a combined structure schematic view of the filtrate pipeline, the filter assembly one, the filter assembly two and the communication pipeline of the utility model;

[0021] Figure 2 It is a top view structure schematic view of the rotating cylinder of the utility model;

[0022] Figure 3 It is a bottom view structure schematic view of the rotating cylinder of the utility model;

[0023] Figure 4 It is a top view structure schematic view of the pressure cylinder of the utility model;

[0024] Figure 5 It is a three-dimensional structure schematic view of the pressure cylinder of the utility model;

[0025] Figure 6 It is a top view structure schematic view of the pressure cylinder of the utility model;

[0026] Figure 7 It is a combined structure schematic view of the utility model Figure 6 It is a section structure schematic view of A-A of the utility model.

[0027] In the figure: 1, filtrate pipeline; 2, filter assembly one; 3, filter assembly two; 4, communication pipeline;

[0028] 21, cylinder one; 22, rotating cylinder; 23, connecting piece; 24, fixing frame;

[0029] 31, water outlet; 32, cylinder two; 33, pressure cylinder; 34, sealing cover;

[0030] 221, shell one; 222, filter core; 223, filter plate; 224, fixed plate; 225, connecting column;

[0031] 331, shell two; 332, flange; 333, support frame; 334, filter pressing area; 335, positioning hole; 336, sealing groove; 337, filter area. DETAILED DESCRIPTION

[0032] The following will disclose a plurality of embodiments of the present application with drawings. For the purpose of clear illustration, many details of the embodiments will be described in the following description. However, it should be understood that these details of the embodiments should not be used to limit the present application. That is, in some embodiments of the present application, these details of the embodiments are not necessary. In addition, for the purpose of simplifying the drawings, some conventional structures and components will be shown in a simple schematic manner in the drawings.

[0033] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.

[0034] Please refer to Figures 1-7 , plate and frame filter press is a commonly used solid-liquid separation equipment, widely used in sewage sludge treatment, chemical industry, pharmaceutical industry. For example, in the process of waste residue filter pressing treatment generated in polyaluminum chloride production, although the sewage treated by plate and frame filter press greatly reduces the content of suspended solids and sludge, there may still be problems such as residual suspended solids and particulate matter, direct discharge may cause pollution problems, and the residual value of residual material is not utilized, based on this, the present application provides a plate and frame filter press sewage collection and discharge device, which comprises a filtrate pipeline 1 for collecting and guiding, a filter assembly one 2 combined with the filtrate pipeline 1 and a filter assembly two 3, the filter assembly one 2 and the filter assembly two 3 are combined through the communication pipeline 4;

[0035] The filter assembly one 2 comprises a cylinder one 21, a rotating cylinder 22 is arranged at the middle segment position of the cylinder one 21, which is used for centrifugal filtration of the filtrate;

[0036] The filter assembly two 3 comprises a cylinder two 32, a pressure cylinder 33 is arranged at the middle segment of the cylinder two 32, a filter area 334 is arranged at the inner side of the pressure cylinder 33, which is used for pressure filtration of the filtrate;

[0037] The bottom of the cylinder two 32 is provided with a water outlet 31 for guiding the filtrate to discharge.

[0038] The filtrate pipeline 1 is used for collecting and guiding the filtrate discharged by the filter press, so as to ensure that the filtrate can smoothly enter the filter assembly one 2 and the filter assembly two 3.

[0039] The cylinder one 21 is a sealed cylindrical cylinder, and the rotating cylinder 22 is arranged inside.

[0040] The rotating cylinder 22 is driven by a motor to rotate at high speed. The rotating cylinder 22 is internally provided with a filter screen to achieve filtration. The filter assembly one 2 and the filter assembly two 3 are connected to ensure that the filtrate can pass from the rotating cylinder 22 to the pressure cylinder 33 through the communication pipeline 4.

[0041] The cylinder body two 32 is a sealed cylindrical body, internally provided with a pressure cylinder 33.

[0042] The pressure cylinder 33 applies pressure to the filtrate through a high-pressure pump, and the inside is provided with multiple layers of pressure filtration area 334. The pressure filtration area 334 is composed of filter materials with different pore sizes to achieve multi-stage pressure filtration.

[0043] The water outlet 31 is located at the bottom of the cylinder body two 32, used to discharge the filtrate after two filtrations, which can be connected to a subsequent treatment system or directly discharged.

[0044] The filtrate discharged by the filter press enters the cylinder body one 21 of the filter assembly one 2 through the filtrate pipeline 1. The filtrate rotates at high speed in the rotating cylinder 22 inside the cylinder body one 21, and the solid residues with larger particle size are separated out by centrifugal force and collected in the collection groove at the bottom of the rotating cylinder 22. The filtrate after centrifugal filtration enters the cylinder body two 32 of the filter assembly two 3 through the communication pipeline 4.

[0045] The filtrate in the pressure cylinder 33 of the cylinder body two 32 is pressurized by the high-pressure pump and filtered step by step through the multiple layers of pressure filtration area 334, further removing fine particles and suspended solids.

[0046] The filtered filtrate is discharged through the water outlet 31 and can be connected to a subsequent treatment system or directly discharged.

[0047] Through the double treatment of centrifugal filtration and pressure filtration, the suspended solids and particulate matter residues in the filtrate are significantly reduced, and the water quality is improved. The discharge of residues is reduced, and the risk of environmental pollution is reduced. The design of the communication pipeline 4 and the collection groove makes the device easy to combine with the existing plate and frame filter press system, and facilitates installation, disassembly and cleaning.

[0048] The top of the cylinder body one 21 is in communication with one end of the filtrate pipeline 1. The middle part of the cylinder body one 21 is provided with two symmetrical connecting pieces 23 at both ends of the rotating cylinder 22. The connecting pieces 23 are used to close the rotating cylinder 22.

[0049] The rotating cylinder 22 includes an outer shell one 221, and the inner side of the outer shell one 221 is provided with a fixed plate 224. The bottom of the fixed plate 224 is provided with a driving part for driving the fixed plate 224 to rotate along the central axis of the rotating cylinder 22.

[0050] The top of the fixed plate 224 is provided with a filter core 222, and a downward groove is formed in the middle of the filter core 222 and corresponds to the end of the filtrate pipeline 1 extending to the cylinder body 21. The top of the fixed plate 224 is provided with a filter plate 223 outside the filter core 222, and the filter plate 223 is recessed downward at a preset angle.

[0051] The fixed plate 224 is connected with the driving part through a connecting column 225, and the connecting column 225 is located at the bottom center of the fixed plate 224.

[0052] The top of the cylinder body 32 is provided with a sealing cover 34, the sealing cover 34 is communicated with one end of the communication pipeline 4, the other end of the communication pipeline 4 penetrates one side of the cylinder body 21 and is located below the rotating cylinder 22.

[0053] The top of the cylinder body 21 is communicated with one end of the filtrate pipeline 1, which ensures that the filtrate can flow smoothly into the cylinder body 21.

[0054] The rotating cylinder 22 in the middle of the cylinder body 21 is provided with two symmetrical connecting parts 23 at both ends, which are used to seal the rotating cylinder 22 and prevent the filtrate from leaking, such as using a sealing bearing.

[0055] The rotating cylinder 22 includes an outer shell, and the inside is provided with a fixed plate 224, the fixed plate 224 is located in the rotating cylinder 22, and the bottom is provided with a driving part for driving the fixed plate 224 to rotate along the central axis of the rotating cylinder 22, and the driving part is generally a waterproof motor.

[0056] The top of the fixed plate 224 is provided with a filter core 222, and a downward groove is formed in the middle of the filter core 222 and corresponds to the end of the filtrate pipeline 1 extending to the cylinder body 21. The top of the fixed plate 224 is provided with a filter plate 223 outside the filter core 222, and the filter plate 223 is recessed downward at a preset angle, which is used to receive the liquid filtered by the filter core 222. The fixed plate 224 is connected with the driving part through a connecting column 225, and the connecting column 225 is located at the bottom center of the fixed plate 224, which realizes firm connection.

[0057] The filter core 222 is made of multi-layer composite material, including stainless steel mesh, polyester fiber, activated carbon and the like. Different layers of materials have different pore sizes and adsorption capacity to realize step-by-step filtration. The material of the filter core 222 has good corrosion resistance and can meet the filtration needs of various corrosive liquids.

[0058] The top of the cylinder body 32 is provided with a sealing cover 34, the sealing cover 34 is communicated with one end of the communication pipeline 4, the other end of the communication pipeline 4 penetrates one side of the cylinder body 21 and is located below the rotating cylinder 22, which ensures that the filtrate can flow into the cylinder body 32 after flowing out of the rotating cylinder 22.

[0059] The filtrate discharged by the filter press flows into the cylinder body 21 through the filtrate pipeline 1.

[0060] After the filtrate enters the rotating cylinder 22, it is preliminarily filtered by the filter core 222 and the filter plate 223 inside the rotating cylinder 22.

[0061] The grooves of the filter core 222 and the filter plate 223 help the filtered liquid flow smoothly into the filter plate 223 and continue to flow downward.

[0062] The driving member rotates the fixed plate 224, further filters the filtrate by centrifugal force, removes larger particulate matter, and the filtrate filtered by the rotating cylinder 22 flows into the cylinder body two 32 through the communication pipeline 4. In the cylinder body two 32, the filtrate is subjected to multi-stage pressure filtration by the pressure cylinder 33, further removing fine particulate matter and suspended matter. The double-filtered filtrate is discharged through the water outlet 31 at the bottom of the cylinder body two 32, which can be directly discharged or introduced into a subsequent treatment system.

[0063] The pressure cylinder 33 includes an outer shell two 331, and one or more flanges 332 are arranged on the inner side of the outer shell two 331, which are linearly distributed along the central axis of the outer shell two 331.

[0064] A filter area 337 is arranged between every two flanges 332 for filtering the filtrate. A filter frame is placed in the middle of the flange 332, and a filter medium is arranged at the filter frame.

[0065] A support frame 333 is arranged at the bottom of the last flange 332 on the inner side of the outer shell two 331, and a positioning hole 335 is arranged in the middle of the support frame 333 for positioning the filter frame. The top and bottom of the outer shell two 331 are provided with sealing grooves 336, which allow the pressure cylinder 33 to be sealingly fixed to the middle section of the cylinder body two 32. The support frame 333 is evenly divided along the central axis of the outer shell two 331 into one or more filter areas 337 for draining the filtrate.

[0066] The bottom of the filter assembly one 2 and the filter assembly two 3 are provided with a fixing frame 24 for supporting them.

[0067] The pressure cylinder 33 includes an outer shell, one or more flanges 332 are arranged inside the outer shell, which are linearly distributed along the central axis of the outer shell, and a filter area 337 is arranged between every two flanges 332 for filtering the filtrate. A filter frame is placed in the middle of the filter area 337, and a filter medium such as filter cloth, filter paper, etc. is arranged at the filter frame.

[0068] The inner side of the shell two 331 is provided with a support frame 333 at the bottom of the last flange 332, and the middle of the support frame 333 is arranged with a positioning hole 335 for positioning the filter frame. The support frame 333 is evenly divided into one or more filtering areas 337 along the central axis of the shell for draining the filtrate. The top and bottom of the shell two 331 are provided with sealing grooves 336, and the pressure cylinder 33 is sealingly fixed to the middle segment of the cylinder two 32 through the sealing grooves 336.

[0069] The filter holes arranged in the plurality of flanges 332 are filled with different filtering media, which can be filter cloth, filter paper, membrane filtration, etc. By selecting different types of filtering media, effective filtration of solid particles of different particle sizes can be achieved, and the purity of the filtrate can be improved.

[0070] The above only describes the embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the scope of the claims of the present application.

Claims

1. A wastewater collection and discharge device for a plate and frame filter press, comprising a filtrate pipe (1) for collecting and diverting filtrate, and a filter assembly one (2) and a filter assembly two (3) combined with the filtrate pipe (1), wherein the filter assembly one (2) and the filter assembly two (3) are connected by a connecting pipe (4); Its features are: The filter assembly (2) includes a cylinder (21), and a rotating cylinder (22) is provided in the middle section of the cylinder (21) for centrifugal filtration of the filtrate. The second filter assembly (3) includes a second cylinder (32), a pressure cylinder (33) is provided in the middle section of the second cylinder (32), and a pressure filtration area (334) is provided on the inner side of the pressure cylinder (33) for pressure filtration of the filtrate. The bottom of the second cylinder (32) is provided with a water outlet (31) for guiding the filtrate out.

2. The wastewater collection and discharge device for a plate and frame filter press according to claim 1, characterized in that: The top of the first cylinder (21) is connected to one end of the filtrate pipe (1). The middle part of the first cylinder (21) is located at both ends of the rotating cylinder (22) and two symmetrically arranged connectors (23) are provided. The connectors (23) are used to close the rotating cylinder (22).

3. The wastewater collection and discharge device for a plate and frame filter press according to claim 1, characterized in that: The rotating cylinder (22) includes an outer shell (221), and a fixing plate (224) is provided on the inner side of the outer shell (221). A driving component is provided at the bottom of the fixing plate (224) to drive the fixing plate (224) to rotate along the central axis of the rotating cylinder (22).

4. The wastewater collection and discharge device for a plate and frame filter press according to claim 3, characterized in that: A filter element (222) is installed on the top of the fixing plate (224). The filter element (222) has a downward groove in the middle, which corresponds to one end of the filtrate pipe (1) extending to the cylinder (21). A filter plate (223) is provided on the top of the fixing plate (224) outside the filter element (222). The filter plate (223) is recessed at a downward preset angle to receive the liquid filtered by the filter element (222).

5. The wastewater collection and discharge device for a plate and frame filter press according to claim 3, characterized in that: The fixing plate (224) is connected to the driving component by a connecting post (225), which is located at the bottom center of the fixing plate (224).

6. The wastewater collection and discharge device for a plate and frame filter press according to claim 1, characterized in that: The top of the second cylinder (32) is provided with a sealing cover (34), which is connected to one end of the connecting pipe (4). The other end of the connecting pipe (4) penetrates one side of the first cylinder (21) and is located below the rotating cylinder (22).

7. The wastewater collection and discharge device for a plate and frame filter press according to claim 1, characterized in that: The pressure cylinder (33) includes a second outer shell (331), and one or more flanges (332) are provided on the inner side of the second outer shell (331). The flanges (332) are linearly distributed along the central axis of the second outer shell (331).

8. The wastewater collection and discharge device for a plate and frame filter press according to claim 7, characterized in that: A filtration area (337) is provided between every two flanges (332) for filtering the filtrate. A filter frame is placed in the middle of the flange (332), and a filter medium is provided in the filter frame.

9. A wastewater collection and discharge device for a plate and frame filter press according to claim 7, characterized in that: A support frame (333) is provided on the inner side of the second outer shell (331) at the bottom of the last flange (332). A positioning hole (335) is arranged in the middle of the support frame (333) for positioning the filter frame. A sealing groove (336) is provided at the top and bottom of the second outer shell (331). The pressure cylinder (33) is sealed and fixed in the middle section of the second cylinder (32) through the sealing groove (336). The support frame (333) is evenly divided into one or more filtration areas (337) along the central axis of the second outer shell (331) for guiding the filtrate.

10. A wastewater collection and discharge device for a plate and frame filter press according to claim 1, characterized in that: Both filter assembly one (2) and filter assembly two (3) are provided with a fixing frame (24) at the bottom for supporting them.

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