Platelet reduction filtration system

Abstract

A plate-type volume reduction filtration system, belonging to the field of environmental protection equipment technology, is characterized by: alternating placement and parallel connection of multiple filter units of two different types; a feed corrosion-resistant end plate mounted on the feed thrust plate of the filter structure frame; a feed pipe on the feed thrust plate and a feed flow hole on the feed corrosion-resistant end plate in a sealed connection; a concentrated liquid outlet pipe on the feed thrust plate and a concentrated water flow hole on the feed corrosion-resistant end plate in a sealed connection; and a clean water outlet pipe on the feed thrust plate and a clean water flow hole on the feed corrosion-resistant end plate in a sealed connection. The advantages are: the filter media does not require shutdown for cleaning, and the filter can operate continuously. When the filter media becomes clogged and requires maintenance, the filter unit can be quickly opened for cleaning, and after cleaning, the filter unit can be quickly closed and put back into operation. This process can be completed with a single button, is simple, efficient, and cost-free. The wastewater reduction ratio can reach 80%.

Description

Technical Field

[0001] This utility model belongs to the field of environmental protection equipment technology and relates to an improvement of sewage treatment equipment. Background Technology

[0002] Traditional wastewater pretreatment technology requires volume reduction for wastewater with very low suspended solids concentrations. This mainly involves using sedimentation tanks (air flotation tanks) for volume reduction, followed by filtration through a filter press to remove the sludge, and finally, the treated water meets discharge standards.

[0003] Traditional processes have drawbacks. Sedimentation tanks (flotation tanks) require the addition of large amounts of flocculants during wastewater treatment to separate suspended solids from the water and reduce volume. However, the use of flocculants increases the amount of harmful components in the wastewater, making subsequent treatment (reclaimed water reuse or zero discharge) more difficult and increasing the cost of wastewater treatment. Tubular volume reduction filters solve the problems of flocculants and continuous operation, but when the filter media becomes clogged and requires maintenance, the maintenance process is complex, time-consuming, and costly. Summary of the Invention

[0004] The purpose of this invention is to provide a plate-type volume reduction filtration system that optimizes the structure of a tubular volume reduction filter, thereby solving the problems of complex maintenance, long maintenance time, and high maintenance cost.

[0005] Technical solution:

[0006] Two different types of filter units are alternately placed and connected in parallel. The feed anti-corrosion end plate is installed on the feed thrust plate of the filter structure frame. The A side of the feed anti-corrosion end plate is in contact with the feed thrust plate. The feed pipe on the feed thrust plate is in sealed communication with the feed flow hole on the feed anti-corrosion end plate. The concentrated liquid outlet pipe on the feed thrust plate is in sealed communication with the concentrated water flow hole on the feed anti-corrosion end plate. The clean water outlet pipe on the feed thrust plate is in sealed communication with the clean water flow hole on the feed anti-corrosion end plate.

[0007] The anti-corrosion end plate is installed on the clamping plate of the filter structure frame;

[0008] The water purification unit and the filter media form a filter unit. The filter media is placed on the water purification unit, and the filter media bridge is placed on the water purification unit, so that the A side and B side of the media are on both sides of the water purification unit. The water purification outlet on the filter media corresponds to the water purification collection hole on the water purification unit, the concentrated water flow hole on the filter media corresponds to the concentrated water flow hole on the water purification unit, and the feed flow hole on the filter media corresponds to the feed flow hole on the water purification unit. The water purification overflow hole on the water purification unit is in a sealed connection with the water purification collection hole. Water enters the water purification unit from the filter media, enters from the water purification overflow hole, and is discharged through the water purification collection hole.

[0009] The feed port and feed distribution port of the concentrate unit are in sealed connection. When the feed liquid enters through the feed port, it enters the concentrate unit through the feed distribution port. The concentrate overflow port and concentrate collection port are in sealed connection. After the feed liquid is concentrated, the concentrate enters through the concentrate overflow port and is discharged through the concentrate collection port.

[0010] Unit pull ears A and B are bolted to the sides of the concentrate unit and the clear water unit respectively through the fixing screw holes. Several to dozens of concentrate units and several to dozens of filter units are placed alternately and installed on the main beam of the filter structure frame through the unit pull ears, so that the first concentrate unit is in contact with the feed anti-corrosion plate and the filter medium B side of the last filter unit is in contact with the pressing anti-corrosion end plate; ensure that the positioning groove on the pull ear is placed on the slide rail on the main beam of the filter structure frame.

[0011] The beneficial effects of this invention are as follows: The plate-type volume reduction filtration system alternately places and connects multiple different filter units. When wastewater passes through the filter unit, clean water without suspended solids can pass through the filter medium into the clean water unit and be discharged. Suspended solids in the wastewater cannot pass through the filter medium and remain in the concentrated water unit, continuously increasing their concentration to achieve the purpose of wastewater reduction. Suspended solids continuously accumulate on the filter unit medium, forming a filter cake, which reduces the permeability of clean water. At this time, a pneumatic vibration backwash is applied to the clean water unit, causing the filter cake on the filter unit medium to fall off and enter the concentrated water unit, and be discharged from the filter, restoring the water permeability of the filter medium. This process is repeated periodically, and the filter medium does not need to be stopped for cleaning, allowing the filter to operate continuously. When the filter medium becomes clogged and requires maintenance, the filter unit can be quickly opened for cleaning, and after cleaning, the filter unit can be quickly closed and put back into operation. This process can be completed with one click, is simple, efficient, and cost-free. The wastewater reduction ratio can reach 80%. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the filtration system structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the filter structure frame of this utility model;

[0014] Figure 3 This is a schematic diagram of the feed thrust plate structure of this utility model;

[0015] Figure 4 This is a schematic diagram of the feed anti-corrosion end plate structure of this utility model;

[0016] Figure 5 This is a schematic diagram of the concentrate unit structure of this utility model;

[0017] Figure 6 This is a schematic diagram of the filter media structure of this utility model;

[0018] Figure 7 This is a schematic diagram of the water purification unit structure of this utility model;

[0019] Figure 8 This is a schematic diagram of the unit pull lug structure of this utility model;

[0020] Figure 9 This is a schematic diagram of the structure of the pressing and corrosion-resistant end plate of this utility model. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] like Figure 1 As shown, 1 is the backwash pipe of the filter unit, 2 is the clean water outlet pipe, 3 is the concentrated water outlet pipe, 4 is the feed pipe, 5 is the filter structure frame, 6 is the feed anti-corrosion end plate, 7 is the concentrated water unit, 8 is the filter medium, 9 is the clean water unit, 10 is the unit pull lug, 11 is the clamping end plate, and 12 is the hydraulic pump station.

[0023] like Figure 2 As shown, 5-1 is the feed thrust plate, 5-2 is the main beam of the structural frame, 5-3 is the unit slide, 5-4 is the clamping plate, 5-5 is the clamping mechanism, and 5-6 is the pulling plate mechanism.

[0024] like Figure 3 As shown, 5-1-1 is the feed pipe, 5-1-2 is the concentrated liquid outlet pipe, and 5-1-3 is the clear water outlet pipe.

[0025] like Figure 4 As shown, 6-1 is end plate A side, 6-2 is end plate B side, 6-3 is clear water flow hole, 6-4 is concentrated water flow hole, and 6-5 is feed flow hole.

[0026] like Figure 5 As shown, 7-1 is the concentrate overflow hole, 7-2 is the concentrate collection hole, 7-3 is the feed hole, 7-4 is the feed water distribution hole, and 7-5 is the clear water flow hole.

[0027] like Figure 6 As shown, 8-1 is the A surface of the medium, 8-2 is the B surface of the medium, 8-3 is the clear water outlet, 8-4 is the concentrated water flow hole, 8-5 is the feed flow hole, and 8-6 is the medium bridge surface.

[0028] like Figure 7 As shown, 9-1 is the clear water collection hole, 9-2 is the clear water overflow hole, 9-3 is the concentrated water flow hole, and 9-4 is the feed flow hole.

[0029] like Figure 8 As shown, A-1 is a fixing screw hole, B-1 is a fixing screw hole, and B-2 is a positioning groove. Figure 9 As shown, 11-1, the A side of the clamping end plate, and 11-2, the B side of the clamping end plate.

[0030] Feeding anti-corrosion end plate (with) Figure 4 Installed on the filter structure frame (attached) Figure 2 Feed thrust plate (with) Figure 3 On the feed anti-corrosion end plate (attached) Figure 4 Surface A is in contact with the feed thrust plate. The feed pipe (5-1-1) on the feed thrust plate is in sealed communication with the feed flow hole (6-5) on the feed corrosion-resistant end plate. The concentrated liquid outlet pipe (5-1-2) on the feed thrust plate is in sealed communication with the concentrated water flow hole (6-4) on the feed corrosion-resistant end plate. The clean water outlet pipe (5-1-3) on the feed thrust plate is in sealed communication with the clean water flow hole (6-3) on the feed corrosion-resistant end plate.

[0031] Press the anti-corrosion end plate (with) Figure 9 Installed on the filter structure frame (attached) Figure 2 Pressing plate (5-4);

[0032] Clear water unit (with) Figure 7 ) and filter media (attached) Figure 6 The filter unit is composed of a filter medium placed on the clear water unit and a filter medium bridge surface (8-6) placed on the clear water unit, with the A and B sides of the medium positioned on opposite sides of the clear water unit. The clear water outlet (8-3) on the filter medium corresponds to the clear water collection hole (9-1) on the clear water unit; the concentrated water flow hole (8-4) on the filter medium corresponds to the concentrated water flow hole (9-3) on the clear water unit; and the feed flow hole (8-5) on the filter medium corresponds to the feed flow hole (9-4) on the clear water unit. The clear water unit (attached) Figure 7 The clear water overflow hole (9-2) on the filter media is in a sealed connection with the clear water collection hole (9-1), and the clear water flows through the filter media (attached). Figure 6 ) Enter the clean water unit (attached) Figure 7 Clear water enters through the clear water overflow hole (9-2) and exits through the clear water collection hole (9-1);

[0033] Concentrate Unit (with) Figure 5 The feed inlet (7-3) and feed water distribution hole (7-4) are in a sealed connection. When the feed liquid enters through the feed inlet (7-3), it passes through the feed water distribution hole (7-4) and enters the concentrate unit. The concentrate overflow hole (7-1) and concentrate collection hole (7-2) are in a sealed connection. After the feed liquid is concentrated, the concentrate enters through the concentrate overflow hole (7-1) and is discharged through the concentrate collection hole (7-2).

[0034] Unit pull tab (included) Figure 8 A and B are bolted to the sides of the concentrate unit and the clear water unit respectively through fixing screw holes. n concentrate units and n filter units are placed alternately and installed on the filter structure frame via unit pull lugs (see attached image). Figure 2 On the main beam (5-2), ensure that the first concentrate unit contacts the feed corrosion-resistant plate, and that the B side of the filter medium on the last filter unit contacts the pressing corrosion-resistant end plate. Ensure the pull lugs (attached) are in contact. Figure 8 The positioning slot (B-2) on the filter is positioned in conjunction with the filter structure frame (attached). Figure 2 On the unit slide (5-3) on the main beam (5-2);

[0035] Filter frame (with) Figure 2 When the upper clamping mechanism (5-5) is working, n concentrate units (attached) Figure 7 The n-filter unit is connected to the feed thrust plate (attached). Figure 3 They are pressed together and sealed.

[0036] Feed thrust plate (with) Figure 3 The feed pipe (5-1-1) and the feed corrosion-resistant end plate (attached) on the feed pipe are also included. Figure 4 The feed flow hole (6-5) on the feed line, the concentrate unit (attached) Figure 5 The feed port (7-3) on the filter media (attached) Figure 6 The feed flow hole (8-5) on the ) and the clear water unit (attached) Figure 7 The feed passage hole (9-4) on the ) and the clamping anti-corrosion end plate (attached) Figure 9 This forms a closed feed channel, and connects with the concentrate unit (attached). Figure 5 The feed water distribution holes (7-4) on the surface are connected;

[0037] Feed thrust plate (with) Figure 3 The concentrated liquid outlet pipe (5-1-2) and the feed anti-corrosion end plate (attached) on the feed are also mentioned. Figure 4 The concentrate flow hole (6-4) on the concentrate unit (attached) Figure 5 The concentrated water overflow hole (7-1), concentrated water collection hole (7-2), and filter media (attached) are on the surface. Figure 6 The concentrated water flow hole (6-4) on the ) and the clear water unit (attached) Figure 7 Concentrate flow holes (9-3) on the plate, and pressure anti-corrosion plate (attached) Figure 9 This creates two closed channels for the discharge of concentrated water;

[0038] Feed thrust plate (with) Figure 3 The clean water outlet pipe (5-1-3) and the feed anti-corrosion end plate (attached) on the feed are also included. Figure 4 The clear water flow hole (6-3) and the concentrate unit (attached) on the surface. Figure 5 The water flow holes (7-5) on the filter media (attached) Figure 6 The water outlet (8-3) on the device, and the water purification unit (attached) Figure 7 The water overflow hole (9-2), water collection hole (9-1), and anti-corrosion plate (attached) on the surface are also included. Figure 9 This forms a closed channel for the discharge of clean water;

[0039] Plate-type volume reduction filter (with) Figure 1The backwash pipe (1) of the filter unit on the filter unit is in a closed connection with the clean water outlet pipe (2);

[0040] Plate-type volume reduction filter (with) Figure 1 During operation, wastewater enters the feed channel through the feed pipe (4) via the feed pump, and then passes through the concentrate unit (attached). Figure 5 The feed water into the concentrate unit is introduced through the feed distribution hole (7-4) on the feed pump; under the pressure of the feed pump, the concentrate unit (attached) Figure 5 Under pressure, clean water passes through the filter medium into the clean water unit, while solids in the wastewater are retained in the concentrate unit, thus concentrating the wastewater. Similarly, under pressure, the concentrated wastewater passes through the concentrate unit (attached). Figure 5 The concentrate overflow hole (7-1) and concentrate collection hole (7-2) of the plate filter lead into the concentrate discharge channel, and the concentrate is then discharged through the plate filter (attached). Figure 1 The concentrated water is discharged through the concentrated water outlet pipe (3) on the ) and enters the clear water unit (attached) through the filter medium. Figure 7 The clean water from the filter then flows through the clean water overflow hole (9-2) and the clean water collection hole (9-1) into the clean water discharge channel, and is then discharged through the plate-type flow reduction filter (attached). Figure 1 The clean water is discharged from the water outlet pipe on the );

[0041] As operating time increases, and the amount of solid matter adhering to the filter media increases, the filtration capacity of the filter media decreases. At this point, the plate-type volume reduction filter (with attachment) should be shut off. Figure 1 Open the clean water outlet pipe (2) and concentrated water outlet pipe (3) on the filter unit, open the backwash pipe (1) of the filter unit, and apply a oscillating compressed air to the backwash pipe of the filter unit. The oscillating compressed air enters the clean water unit through the clean water discharge channel, and applies a pressure opposite to that of the clean water to the filter medium. The filter medium deforms, the solid matter attached to its surface falls off, and the filtration capacity of the filter medium is restored. This process is repeated periodically, and the plate-type volume reduction filter runs continuously.

[0042] Plate-type volume reduction filter (with) Figure 1 After a period of operation, when the surface of the filter media becomes severely clogged, it needs cleaning and maintenance. Open the filter frame (attached). Figure 2 The clamping mechanism (5-5) is pulled by the pulling plate mechanism (5-6). Figure 1 The upper unit pull lug (10) extends along the filter structure frame (attached). Figure 2 The unit slides (5-3) on the filter media, separating the concentrate unit from the clear water unit, and the filter media has a certain space for cleaning and maintenance.

[0043] Restart the filter structure after completion (attached) Figure 2 The clamping mechanism (5-5) on the plate filter re-clamps the concentrate unit and the filter unit. Open the plate filter (attached). Figure 1Close the clean water outlet pipe and concentrated water outlet pipe on the filter unit, and shut off the backwash pipe. Start the wastewater feed pump, and the plate filter will restart. The maintenance process takes less than 1 hour and can be completed with one click.

Claims

1. A plate-type volume reduction filtration system, characterized in that: Two different types of filter units are alternately placed and connected in parallel. The feed anti-corrosion end plate is installed on the feed thrust plate of the filter structure frame. The A side of the feed anti-corrosion end plate is in contact with the feed thrust plate. The feed pipe on the feed thrust plate is in sealed communication with the feed flow hole on the feed anti-corrosion end plate. The concentrated liquid outlet pipe on the feed thrust plate is in sealed communication with the concentrated water flow hole on the feed anti-corrosion end plate. The clean water outlet pipe on the feed thrust plate is in sealed communication with the clean water flow hole on the feed anti-corrosion end plate. The clamping anti-corrosion end plate is installed on the clamping plate of the filter structure frame.

2. The plate-type volume reduction filtration system as described in claim 1, characterized in that: The water purification unit and the filter media form a filter unit. The filter media is placed on the water purification unit, and the filter media bridge is placed on the water purification unit, so that the A side and B side of the media are on both sides of the water purification unit. The water purification outlet on the filter media corresponds to the water purification collection hole on the water purification unit, the concentrated water flow hole on the filter media corresponds to the concentrated water flow hole on the water purification unit, and the feed flow hole on the filter media corresponds to the feed flow hole on the water purification unit. The water purification overflow hole on the water purification unit is in a sealed connection with the water purification collection hole. Water enters the water purification unit from the filter media, enters from the water purification overflow hole, and is discharged through the water purification collection hole.

3. The plate-type volume reduction filtration system as described in claim 1, characterized in that: The feed port and feed distribution port of the concentrate unit are connected in a sealed manner. When the feed liquid enters through the feed port, it enters the concentrate unit through the feed distribution port. The concentrate overflow port and concentrate collection port are connected in a sealed manner. After the feed liquid is concentrated, the concentrate enters through the concentrate overflow port and is discharged through the concentrate collection port.

4. The plate-type volume reduction filtration system as described in claim 1, characterized in that: Unit pull ears A and B are bolted to the sides of the concentrate unit and the clear water unit respectively through the fixing screw holes. Several to dozens of concentrate units and several to dozens of filter units are placed alternately and installed on the main beam of the filter structure frame through the unit pull ears, so that the first concentrate unit is in contact with the feed anti-corrosion plate and the filter medium B side of the last filter unit is in contact with the pressing anti-corrosion end plate; ensure that the positioning groove on the pull ear is placed on the slide rail on the main beam of the filter structure frame.

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