CN213668086U

CN213668086U - Filter plate of plate-and-frame filter press

Info

Publication number: CN213668086U
Application number: CN202022494507.0U
Authority: CN
Inventors: 周安; 龚仁达
Original assignee: Jiangsu Pulisu Environmental Protection Technology Co ltd
Current assignee: Jiangsu Pulisu Environmental Protection Technology Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-07-13
Anticipated expiration: 2030-11-03

Abstract

A filter plate of a plate-and-frame filter press is particularly used for dehydration treatment of sludge and comprises a plurality of filter cloth plate frames and filter press plate frames which are horizontally arranged at intervals in sequence, wherein the filter cloth plate frames are used for clamping a diaphragm inflation layer by two same plate frames to form an integral plate frame, two surfaces of a square plate frame are respectively wrapped with a layer of filter cloth through a rubber gasket, a space between the filter cloth and the diaphragm inflation layer forms a filter layer, air washing devices are respectively arranged on two side frames of the plate frame group symmetrically at the front and the back, and a first feeding pipe penetrating through the filter cloth 4 and the diaphragm inflation layer is arranged at the middle upper part of the square surface of; a second rubber gasket is arranged on a pressing plate of the filter pressing plate frame and can be jointed with the first rubber gasket on the filter pressing plate frame, a second feeding pipe penetrating through a pressing plate body is arranged at the middle upper part of the pressing plate, and the second feeding pipe and the first feeding pipe are the same in size and are positioned on the same horizontal axis at the center. The device has the characteristics of tight seal, firm structure and easy cleaning.

Description

Filter plate of plate-and-frame filter press

Technical Field

The utility model relates to a sewage treatment field specifically is used for the dehydration of mud to handle.

Background

As a solid-liquid separation device, the plate-and-frame filter press has compact structure and large filtering area, can be used for treating muddy water mixed liquid with high solid content, and is widely applied in the current environmental protection field. However, in the actual operation process, the problems that the plate frames are not pressure-resistant and are easy to break, and impurities are easily adhered to the filter cloth, so that the sealing between the plate frames is not tight, water seepage occurs between the plates, and the like are often found, which always troubles various use units, so that the development of the plate frame filter press plate which is tight in sealing, firm in structure and easy to clean is urgently needed.

The prior patent (application number: CN 201220412090.1) discloses a filter plate of a plate-and-frame filter press, which comprises a plate frame, wherein the middle part of the upper end of the plate frame is provided with a liquid inlet, and the middle part of the lower end of the plate frame is provided with a liquid outlet; a square supporting platform is arranged in the middle of the plate frame; at least more than two convex cuboids are arranged on the left side and the right side of the liquid inlet; the liquid outlet both sides are equipped with the outstanding cuboid more than two at least, inlet and liquid outlet be coaxial setting and be in the grillage central line position on, inlet and liquid outlet in be equipped with metal pipeline, two hangers are still established to grillage both sides limit. The utility model has simple structure; the protruding cuboids arranged on the left side and the right side of the liquid inlet and the liquid outlet are matched with the filter frame, so that tight combination can be formed, the displacement condition generated when the pressure of the filter chamber is large is reduced, and the filter quality is ensured. But the plate frame and the plate frame are tightly pressed to have a sealing effect, and the water leakage phenomenon between the plates is difficult to effectively solve.

Disclosure of Invention

The utility model aims at providing a sealed, firm, the easy abluent sheet frame filter-pressing board of structure to the not enough of current device.

The filter plate of the plate-and-frame filter press comprises a plurality of filter cloth plate frames and filter press plate frames which are horizontally arranged at intervals in sequence, wherein the filter cloth plate frames are of a square structure, a diaphragm inflation layer is clamped by the front and the back of two same plate frames to form an integral plate frame, two surfaces of the square of the plate frames are respectively wrapped with a layer of filter cloth through a rubber gasket, a space between the filter cloth and the diaphragm inflation layer forms a filter layer, air washing devices are respectively arranged on the front and the back of a group of symmetrical side frames of the plate frames, air injection holes of 4 air washing devices on the two side edges face the rubber gasket and the outer surface of the filter cloth, and a first feeding pipe penetrating through the filter cloth and the diaphragm inflation layer is arranged at the middle; the filter pressing plate frame is of a square structure, a rubber gasket II is arranged on a pressing plate of the filter pressing plate frame and can be jointed with the rubber gasket I on the filter pressing plate frame in an attaching mode, a feeding pipe II penetrating through the pressing plate body is arranged on the middle upper portion of the pressing plate, the feeding pipe II and the feeding pipe I are identical in size, and the center of the feeding pipe II and the feeding pipe I is located on the same horizontal axis.

When sludge pressing slag is dehydrated, a plurality of filter cloth plate frames and a plurality of filter pressing plate frames are extruded and folded at intervals, a first rubber gasket and a second rubber gasket are attached and sealed to prevent liquid leakage, sludge slurry flows into a space between filter cloth and a pressing plate through a first feeding pipe and a second feeding pipe in sequence, then air is blown into the inside of a diaphragm, sludge is extruded through the diaphragm to be dehydrated, filtrate enters a filter layer through the filter cloth to be discharged, the filter cloth plate frames and the filter pressing plate frames are separated after dehydration is finished, and sludge cakes after dehydration fall from the pressing plate and are centralized; when the plate frame is cleaned, all the filter cloth plate frames and the filter pressing plate frames are folded again, clear water flows into the first feeding pipe of the outermost filter cloth plate frame to start cleaning the pressing plate and the filter cloth, after cleaning is finished, the filter cloth plate frames and the filter pressing plate frames are separated by 5-10cm, sewage after cleaning is discharged, and finally the air cleaning device 5 starts to purge the adhered mud on the surfaces of the first rubber gasket 3, the second rubber gasket 3-1 and the filter cloth 4.

Furthermore, the first rubber gasket and the second rubber gasket are the same in size and the same in horizontal position.

Furthermore, an air inlet pipe is arranged on the side edge of the diaphragm inflating layer, and the inlet end of the air inlet pipe is connected with an air bag inside the diaphragm inflating layer and used for blowing air into the space between the diaphragm inflating layers.

Furthermore, a water outlet pipe is arranged on the lower plate frame of the filter cloth plate frame 1 and communicated with the space between the filter cloth and the diaphragm inflating layer.

Furthermore, a convex block is arranged at the center of the two surfaces of the diaphragm inflating layer, a concave block is arranged at the center of the two surfaces of the pressing plate, the convex block and the concave block are butted, aligned and matched when the filter cloth plate frame and the filter press plate frame are folded, and the concave block and the convex block are matched to stabilize the plate frame against displacement when hydraulic slag is removed.

Furthermore, the same hanging lugs are arranged on the filter cloth plate frame and the filter pressing plate frame on the plate frame on one side of the air washing device, the hanging holes of the hanging lugs are the same in size, and the hanging holes on each side of the filter cloth plate frame and the filter pressing plate frame are on the same horizontal axis.

The utility model has the advantages that:

1. the rubber gasket is used for replacing the traditional frame plate structure material to serve as a folding combination part between the plate frames, so that the fracture phenomenon caused by long-time folding and extrusion of the plate frames can be reduced.

2. The air washing device is used for blowing and washing mud on the surfaces of the filter cloth and the rubber ring, so that the mud is prevented from adhering to cause untight sealing.

3 utilize lug and concave block to carry out the alignment between sheet frame and the sheet frame, prevent that the dislocation from causing sludge slurry to spill between the sheet frame.

Drawings

Fig. 1 is a schematic structural view of a filter cloth plate frame.

Fig. 2 is a left side view of the filter cloth plate frame.

Fig. 3 is a schematic structural view of a filter press plate frame.

Figure 4 is a left side view of the filter press plate frame.

Fig. 5 is a combined view of a filter plate frame and a filter plate frame.

In the figure: the filter cloth plate frame 1, the filter press plate frame 2, the rubber gasket No. 3-1, the filter cloth 4, the air washing device 5, the feeding pipe No. 6-1, the pressing plate 7, the hangers 8, the air inlet pipe 9, the water outlet pipe 10, the convex block 11, the concave block 11-1, the diaphragm inflation layer 12 and the filter layer 13.

Detailed Description

Example 1:

as shown in the figures 1 and 2, respectively, as shown in fig. 3, 4 and 5, a filter plate of a plate-and-frame filter press comprises a plurality of filter cloth plate frames 1 and filter press plate frames 2 which are horizontally arranged at intervals in sequence, wherein the filter cloth plate frames 1 are of a square structure, a diaphragm inflation layer 12 is clamped by the front and the back of two same plate frames to form an integral plate frame, two surfaces of the square of the plate frame are respectively wrapped by a layer of filter cloth 4 through a rubber gasket 3, a space between the filter cloth 4 and the diaphragm inflation layer 12 forms a filter layer 13, a water outlet pipe 10 is arranged in the filter layer 13 and penetrates through the plate frames to be connected with the outside, air washing devices 5 are arranged on two symmetrical side frames of the plate frame in the front and back directions, air injection holes of the 4 air washing devices 5 on two side edges face the outer surfaces of the rubber gasket 3 and the filter cloth 4, a first feeding pipe 6 penetrating through the filter cloth 4 and the diaphragm inflation layer 12 is arranged on the middle upper part of the; the filter press plate frame 2 is of a square structure, a second rubber gasket 3 is arranged on a press plate 7 of the filter press plate frame 2, the first rubber gasket 3 and the second rubber gasket 3-1 are the same in size and can be in butt joint with the first rubber gasket 3 on the filter press plate frame 1 in a fit mode, a second feeding pipe 6-1 penetrating through the plate body of the press plate 7 is arranged at the middle upper portion of the press plate 7, the second feeding pipe 6-1 and the first feeding pipe 6 are the same in size, and the center positions of the second feeding pipe 6-1 and the first feeding pipe 6 are on; the same hangers 8 are arranged on the filter cloth plate frame 1 and the filter press plate frame 2 on the plate frame on one side of the air washing device 5, the hanging holes of the hangers 8 are the same in size, and the hanging holes on each side of the filter cloth plate frame 1 and the filter press plate frame 2 are on the same horizontal axis; the center positions of two surfaces of the diaphragm inflating layer 12 are provided with a convex block 11, the center position of the center of two surfaces of the pressing plate 7 is provided with a concave block 11-1, the convex block 11 is butted, aligned and matched with the concave block 11-1 when the filter cloth plate frame 1 and the filter press plate frame 2 are folded, and the concave block 11-1 and the convex block 11 are matched to stabilize the plate frame against displacement when the water pressure slag is removed.

When sludge press slag is dehydrated, a plurality of filter cloth plate frames 1 and a plurality of filter cloth plate frames 2 which are horizontally arranged at intervals are extruded and folded, a first rubber gasket 3 and a second rubber gasket 3-1 are attached and sealed to prevent liquid leakage, sludge slurry sequentially flows into a space filled between a filter cloth 4 and a pressing plate 7 through a first feeding pipe 6 and a second feeding pipe 6-1, then air is blown into the inside of a diaphragm, sludge is extruded and dehydrated through a diaphragm wall, filtrate enters a filter layer 13 through the filter cloth 4 and is discharged through a water outlet pipe 10, the filter cloth plate frames 1 and the filter cloth plate frames 2 are separated after dehydration is finished, and sludge cakes after dehydration fall from the pressing plate 7 and are centralized.

When the plate frame is cleaned, all the filter cloth plate frames 1 and the filter press plate frames 2 are folded again, cleaning liquid flows in from the first feeding pipe 6 of the outermost filter cloth plate frame 1, then the space between the press plate 7 and the filter cloth 4 is filled with the cleaning liquid through the other first feeding pipes 6 and the second feeding pipes 6-1, after cleaning is finished, the filter cloth plate frames 1 and the filter press plate frames 2 are separated by a distance of 5-10cm, sewage after cleaning is discharged, and finally the air washing device 5 is started to wash and blow and wash the adhered mud on the surfaces of the first rubber gasket 3, the second rubber gasket 3-1 and the filter cloth 4.

Claims

1. The utility model provides a filter plate of plate frame filter press, includes a plurality of filter cloth plate frames and filter-pressing plate frame that the level set up at interval in proper order, and the filter cloth plate frame is the square structure, cliies a diaphragm and aerifys the layer and constitutes a whole plate frame around by two the same plate frames, and the one deck filter cloth is wrapped up through a rubber packing ring respectively on two surfaces of plate frame square, and the space between filter cloth and the diaphragm aerifys the layer constitutes filter layer, its characterized in that: the front and the back of a group of symmetrical two side frames of the plate frame are respectively provided with a gas washing device, the gas injection holes of the gas washing devices on the two side edges face to the outer surfaces of the first rubber gasket and the filter cloth, and the middle upper part of the square surface of the plate frame is provided with a first feeding pipe which penetrates through the filter cloth and the diaphragm inflation layer; the filter pressing plate frame is of a square structure, a rubber gasket II is arranged on a pressing plate of the filter pressing plate frame and can be jointed with the rubber gasket I on the filter pressing plate frame in an attaching mode, a feeding pipe II penetrating through the pressing plate body is arranged on the middle upper portion of the pressing plate, the feeding pipe II and the feeding pipe I are identical in size, and the center of the feeding pipe II and the feeding pipe I is located on the same horizontal axis.

2. The filter plate for a filter press according to claim 1, wherein: the first rubber gasket and the second rubber gasket are the same in size and same in horizontal position.

3. The filter plate for a filter press according to claim 1, wherein: an air inlet pipe is arranged on the side edge of the diaphragm inflating layer, and the inlet end of the air inlet pipe is connected with an air bag inside the diaphragm inflating layer.

4. The filter plate for a filter press according to claim 1, wherein: a water outlet pipe is arranged on the plate frame at the lower part of the filter cloth plate frame and is communicated with the space between the filter cloth and the diaphragm inflating layer.

5. The filter plate for a filter press according to claim 1, wherein: the center positions of two surfaces of the diaphragm inflating layer are provided with a convex block, the center position of the two surfaces of the pressing plate is provided with a concave block, and the convex block and the concave block are butted, aligned and matched when the filter cloth plate frame and the filter press plate frame are folded.

6. The filter plate for a filter press according to claim 1, wherein: the same hangers are installed on the plate frame on one side of the gas washing device arranged on the filter cloth plate frame and the filter pressing plate frame, the sizes of the hanging holes of the hangers are the same, and the hanging holes on each side of the filter cloth plate frame and the filter pressing plate frame are on the same horizontal axis.