CN113617077A

CN113617077A - Filter plate mechanism of plate-and-frame filter press for reducing water content of filter residue

Info

Publication number: CN113617077A
Application number: CN202110987418.6A
Authority: CN
Inventors: 曾飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2021-11-09

Abstract

The invention relates to the technical field of sludge treatment, and discloses a filter plate mechanism of a plate-and-frame filter press for reducing the water content of filter residues. According to the invention, through the arrangement of the connecting rod, the fixed plate and the movable plate, the connecting rod is driven to move backwards in the process of extending the filter cloth, the movable plate and the magnet attract each other in the process of moving backwards of the connecting rod, the movable plate is fixedly installed and is installed in a sliding manner, so that the movable plate firstly moves in the connecting rod and is in contact with the fixed plate, and then a cavity of the connecting rod is sealed, and then the movable plate is always kept at the position in the process of moving backwards of the connecting rod carrying the movable plate, when the connecting rod moves backwards, gas in the sliding cavity is extruded into the gas storage cavity, so that the piston extrudes the elastic element to move downwards, and in the process, the connecting rod is subjected to the thrust of the gas pushed by the piston, so that the reverse pressure of the filter cloth on mud is increased, and the water content of the filter cloth is further reduced.

Description

Filter plate mechanism of plate-and-frame filter press for reducing water content of filter residue

Technical Field

The invention relates to the technical field of sludge treatment, in particular to a filter plate mechanism of a plate-and-frame filter press for reducing the water content of filter residues.

Background

The plate-and-frame filter press is a mechanical device for chemical dehydration, is usually used for separating solid from liquid in sewage, and has higher solid content and excellent separation effect after being filtered.

The existing plate-and-frame filter press consists of a plurality of filter plate mechanisms, wherein the left side and the right side of each filter plate mechanism are respectively provided with a groove, the surface of each groove is tightly attached and fixedly provided with filter cloth, a water cavity is arranged in the middle of each groove in each filter plate mechanism and is communicated with the groove through a water hole, the middle of each filter plate mechanism is provided with a through hole, the through holes penetrate through the filter plates, when the filter press works, the filter plates are tightly pressed by a pressing mechanism, so that the left groove and the right groove form a filter pressing chamber, after slurry is discharged into the filter pressing chamber from the through holes, water in the slurry enters the water cavities from the water holes through the filter cloth on the surface of the grooves and is finally discharged from a water outlet, the residual filter residues are gathered on the surface of the filter cloth, after dehydration is finished, the filter plates are separated, and the filter residues on the surface of the filter cloth are separated from the filter cloth due to gravity, but in the operation, the slurry in the filter pressing chamber is only gradually input into the slurry subsequently, and then to the mud production pressure in the filter-pressing room, carry out the extrusion dehydration to mud through this pressure, just so make the mud dewatering effect in the filter-pressing room lower, lead to finally the filter residue water content that obtains higher, and then make the filter residue be difficult for breaking away from the filter cloth, influence going on of next dehydration operation.

Disclosure of Invention

Aiming at the defects of the prior plate-and-frame filter press in the use process, the invention provides the filter plate mechanism of the plate-and-frame filter press for reducing the water content of filter residue, which has the advantages of improving the dehydration effect of slurry and reducing the water content of the filter residue and solves the technical problems in the prior art.

The invention provides the following technical scheme: the utility model provides a reduce plate frame filter press filter plate mechanism of filter residue water content, includes the filter plate main part, the left and right sides of filter plate main part all is provided with the recess, the position at filter plate main part middle part is provided with the through-hole, the through-hole runs through the recess of the left and right sides, the hole of permeating water has been seted up to the inside position that is located the recess of filter plate main part, the inside drainage chamber of having seted up of filter plate main part, the recess is through permeating water hole and drainage chamber intercommunication, the fixed surface of recess installs the filter cloth, the filter cloth is elastic material, the filter cloth is the contactless setting with the recess.

Preferably, a sliding cavity is fixedly arranged at the position of the corner of the groove in the filter plate main body, a connecting rod is slidably arranged in a cavity of the sliding cavity, gas is filled in the position, located at the upper part of the connecting rod, in the inner cavity of the sliding cavity, the bottom end of the connecting rod penetrates through the groove, and the bottom end of the connecting rod is fixedly connected with the center of the back face of the filter cloth.

Preferably, the inside air duct that has seted up jointly of sliding chamber and the inside filter plate main part, the one end of air duct and the cavity intercommunication in sliding chamber, the fixed position at the inside upper surface middle part of filter plate main part has the gas storage chamber, the other end intercommunication of gas storage chamber and air duct, the inner chamber slidable mounting in gas storage chamber has the piston, the lower fixed surface of piston installs the elastic component, the other end of elastic component and the bottom surface fixed connection in gas storage chamber.

Preferably, a cavity is formed in the connecting rod, a fixed plate is fixedly mounted on one side of the inner wall of the connecting rod, a movable plate is slidably mounted on the other side of the inner wall of the connecting rod, the movable plate is made of a magnetic material, a magnet is fixedly mounted at a position, located on one side of the movable plate, on the inner wall of the sliding cavity, and the magnet and the movable plate are attracted in different poles.

Preferably, the position of the bottom end of the connecting rod is provided with an air blowing hole, the air blowing hole is obliquely arranged, and the air blowing hole is communicated with the cavity of the connecting rod.

The invention has the following beneficial effects:

1. according to the filter press, through the arrangement of the filter cloth, in the process that the mud gradually enters the filter press chamber, the mud can extrude the filter cloth along with the gradual increase of the mud in the filter press chamber, so that the filter cloth extends and is tightly attached to the groove, in the process, the mud is not only subjected to the pressure of the subsequent mud, but also subjected to the reverse pressure exerted by the filter cloth on the mud, so that the extrusion force exerted on the mud is increased, the dehydration effect of the mud is improved, the water content of the filter residue is reduced, and then after the mud is dehydrated, the filter plates are separated, so that the filter residue accumulated in the filter press chamber loses the pressure exerted by the two filter plates, the filter cloth rebounds, the filter residue on the filter cloth is separated from the filter cloth by the inertia force, and the filter residue is prevented from being remained on the filter cloth, and the next dehydration operation is not influenced.

2. According to the invention, through the arrangement of the connecting rod, the fixed plate and the movable plate, the connecting rod is driven to move backwards in the process of extending the filter cloth, the movable plate and the magnet attract each other in the process of moving backwards of the connecting rod, the movable plate is fixedly installed and is installed in a sliding manner, so that the movable plate firstly moves in the connecting rod and is in contact with the fixed plate, and then a cavity of the connecting rod is sealed, and then the movable plate is always kept at the position in the process of moving backwards of the connecting rod carrying the movable plate, when the connecting rod moves backwards, gas in the sliding cavity is extruded into the gas storage cavity, so that the piston extrudes the elastic element to move downwards, and in the process, the connecting rod is subjected to the thrust of the gas pushed by the piston, so that the reverse pressure of the filter cloth on mud is increased, and the water content of the filter cloth is further reduced.

3. According to the invention, through the arrangement of the connecting rod, the fixed plate and the movable plate, after the filter plates are separated, the elastic part pushes the piston to reset because filter residues accumulated in the filter pressing chamber lose the pressure applied by the two filter plates, in the process, the piston pushes the gas in the gas storage chamber back to the sliding chamber, so that the connecting rod resets, the filter cloth is smoothly rebounded, because the movable plate is always attracted by the magnet, in the resetting process of the connecting rod, the movable plate moves and is separated from the fixed plate, further, an asymmetric arrangement is formed in the cavity of the connecting rod, when the gas in the gas storage chamber continues to enter the sliding chamber, part of the gas in the sliding chamber enters the cavity of the connecting rod and is discharged from the gas blowing holes, in the process that the gas passes through the cavity of the connecting rod, because the asymmetric arrangement of the movable plate and the fixed plate, the pressure applied to the gas is uneven, so that the connecting rod vibrates, the connecting rod drives the filter cloth to vibrate, make remaining filter residue drop on the filter cloth to further avoid the filter residue to remain on the filter cloth, later follow the gas blow hole combustion gas can be the inclination and blow to the filter cloth back, and then carry out the blowback to the filter cloth, thereby avoid the filter residue adhesion on the filter cloth surface, influence the dehydration operation next time.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion of the structure A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of a structural connecting rod of the present invention;

FIG. 4 is a schematic view of a piston according to the present invention;

fig. 5 is a schematic view of a structural movable plate according to the present invention.

In the figure: 1. a filter plate body; 2. a groove; 3. a through hole; 4. water permeable holes; 5. a drainage cavity; 6. filtering cloth; 7. a slide chamber; 8. a connecting rod; 80. fixing a plate; 81. a movable plate; 82. a gas blowing hole; 9. a magnet; 10. an air duct; 11. a gas storage cavity; 12. a piston; 13. an elastic member.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a filter plate mechanism of a plate frame filter press for reducing water content of filter residue comprises a filter plate main body 1, grooves 2 are respectively arranged at the left side and the right side of the filter plate main body 1, a through hole 3 is arranged at the middle part of the filter plate main body 1, the through hole 3 penetrates through the grooves 2 at the left side and the right side, a water permeable hole 4 is arranged at the position of the groove 2 inside the filter plate main body 1, a water drainage cavity 5 is arranged inside the filter plate main body 1, the groove 2 is communicated with the water drainage cavity 5 through the water permeable hole 4, a filter cloth 6 is fixedly arranged on the surface of the groove 2, the filter cloth 6 is made of an elastic material, the filter cloth 6 is arranged in a non-contact manner with the groove 2, when slurry gradually enters a filter press chamber enclosed by the grooves 2, the slurry can extrude the filter cloth 6 along with the gradual increase of the slurry in the filter press chamber, so that the filter cloth 6 is stretched and tightly attached to the groove 2, and in the process, the slurry is not only subjected to the pressure of the subsequent slurry, the filter plate main body 1 is separated after the slurry is dehydrated, so that the accumulated filter residues in the filter pressing chamber lose the pressure applied by the two filter plate main bodies 1, the filter cloth 6 is rebounded, the filter residues on the filter plate main body are separated from the filter cloth 6 due to the inertia force, the filter residues are prevented from remaining on the filter cloth 6, and the next dehydration operation is influenced.

Wherein, the inside fixed position that is located the recess 2 turning of filter plate main part 1 has smooth chamber 7, slidable mounting has connecting rod 8 in the cavity of smooth chamber 7, the position that is located the upper portion of connecting rod 8 in the smooth chamber 7 inner chamber is filled with gas, recess 2 is run through to the bottom of connecting rod 8, the bottom of connecting rod 8 and the central point at the 6 backs of filter cloth put fixed connection, at the in-process that filter cloth 6 extended, can drive connecting rod 8 and move backward, and then make the gas in connecting rod 8 extrusion smooth chamber 7, make gas exert a reaction force to connecting rod 8, and then make filter cloth 6 increase the backpressure of mud, thereby further reduce the water content of filter residue.

Wherein, the inside of the sliding cavity 7 and the inside of the filter plate body 1 are jointly provided with the gas guide tube 10, one end of the gas guide tube 10 is communicated with the cavity of the sliding cavity 7, the position of the middle part of the upper surface inside the filter plate body 1 is fixedly provided with the gas storage cavity 11, the gas storage cavity 11 is communicated with the other end of the gas guide tube 10, the inner cavity of the gas storage cavity 11 is slidably provided with the piston 12, the lower surface of the piston 12 is fixedly provided with the elastic part 13, the other end of the elastic part 13 is fixedly connected with the bottom surface of the gas storage cavity 11, when the connecting rod 8 extrudes the gas in the sliding cavity 7, the gas is extruded into the gas storage cavity 11 through the gas guide tube 10, the gas entering the gas storage cavity 11 pushes the piston 12 to move downwards and extrudes the elastic part 13, in the process, the elastic part 13 applies the reverse thrust to the gas in the gas storage cavity 11 through the piston 12, the gas applies the reverse thrust to the connecting rod 8, and further increases the reverse pressure of the filter cloth 6 to the slurry, further reduce the water content of filter residue, later, after filter plate main part 1 separates the back, because the filter residue that piles up in the filter-pressing room loses the pressure that two filter plate main parts 1 exerted for elastic component 13 can promote piston 12 and reset, and at this in-process, piston 12 pushes back the gas in the gas storage chamber 11 in the sliding chamber 7, and then makes connecting rod 8 reset, makes filter cloth 6 kick-back smoothly.

Wherein, the connecting rod 8 is provided with a cavity inside, one side of the inner wall of the connecting rod 8 is fixedly provided with a fixed plate 80, the other side of the inner wall of the connecting rod 8 is provided with a movable plate 81 in a sliding way, the movable plate 81 is made of magnetic material, the position of the inner wall of the sliding cavity 7, which is positioned at one side of the movable plate 81, is fixedly provided with a magnet 9, the magnet 9 and the movable plate 81 are attracted in different poles, in the process of backward movement of the connecting rod 8, because the movable plate 81 is attracted with the magnet 9 and the magnet 9 is fixedly arranged, the movable plate 81 is installed in a sliding way, the movable plate 81 firstly moves relative to the connecting rod 8 and contacts with the fixed plate 80, and then the cavity of the connecting rod 8 is sealed, so that the connecting rod 8 can smoothly extrude and convey the gas in the gas storage cavity 11, afterwards, when the connecting rod 8 is reset, the movable plate 81 firstly moves relative to the connecting rod 8, so that the movable plate 81 is separated from the fixed plate 80, and then the movable plate 81 moves synchronously with the connecting rod 8, at this moment, the cavity of stationary plate 80 and movable plate 81 at connecting rod 8 is asymmetric setting, when gas storage chamber 11 in the gas continues to get into smooth chamber 7, the cavity of connecting rod 8 can be got into to the part gas in smooth chamber 7, at the in-process that gaseous passing through connecting rod 8 cavity, because movable plate 81 and stationary plate 80's asymmetric setting, make the pressure that gas receives inhomogeneous, and then make connecting rod 8 produce the vibration, connecting rod 8 drives the vibration of filter cloth 6, make remaining filter residue drop on the filter cloth 6, thereby further avoid the filter residue to remain on filter cloth 6.

Wherein, gas hole 82 has been seted up to the position of 8 bottoms of connecting rods, gas hole 82 sets up for the slope, gas hole 82 communicates with connecting rod 8's cavity, the gas that gets into 8 cavitys of connecting rod can be discharged from gas hole 82, the combustion gas can be inclination and blow to the back of filter cloth 6, and then carry out the blowback operation to filter cloth 6, the filter residue that makes 6 surfaces of filter cloth receives gaseous blowing power, and then breaks away from filter cloth 6, thereby avoid the filter residue adhesion at 6 surfaces of filter cloth, influence the operation of dehydrating next time.

The use method (working principle) of the invention is as follows:

when the filter plate is in operation, firstly, gas is filled into the sliding cavity 7, then the pressing mechanism presses the filter plate main bodies 1 tightly, so that the grooves 2 of the adjacent filter plate main bodies 1 form a filter pressing chamber, finally, slurry is conveyed into the filter pressing chamber through the through holes 3, the slurry can extrude the filter cloth 6 along with the gradual increase of the slurry in the filter pressing chamber, so that the filter cloth 6 is stretched and clings to the grooves 2, in the process, the slurry is not only stressed by the pressure of the subsequent slurry, but also is stressed by the filter cloth 6 to exert reverse pressure on the slurry, so that the slurry is squeezed and dehydrated, the separated water passes through the filter cloth 6 and the water permeable holes 4, then enters the drainage cavity 5 and is finally discharged from the drainage port, the residual filter residues can be gathered on the surface of the filter cloth 6, in the stretching process of the filter cloth 6, the connecting rod 8 can be driven to move backwards, in the moving process of the connecting rod 8, because the movable plate 81 is attracted with the magnet 9, and the magnet 9 is fixedly installed, the movable plate 81 is installed in a sliding manner, so that the movable plate 81 firstly moves relative to the connecting rod 8 and contacts with the fixed plate 80, the cavity of the connecting rod 8 is further closed, then, along with the continuous backward movement of the connecting rod 8, the movable plate 81 synchronously moves along with the moving, and the gas in the sliding cavity 7 is extruded into the gas storage cavity 11 through the gas guide pipe 10, the gas entering the gas storage cavity 11 pushes the piston 12 to move downwards and extrude the elastic piece 13, after the slurry is dehydrated, the pressing mechanism drives the filter plate main bodies 1 to be separated, then the elastic piece 13 rebounds and pushes the piston 12 to move upwards, in the process, the piston 12 pushes the gas in the gas storage cavity 11 back into the sliding cavity 7 through the gas guide pipe 10, so that the connecting rod 8 is pushed to reset, the filter cloth 6 is reset, filter residues gathered on the surface of the filter cloth 6 fall off, and meanwhile, in the process of resetting the connecting rod 8, the movable plate 81 and the connecting rod 8 move relatively, the movable plate 81 and the fixed plate 80 are separated due to the mutual attraction of the movable plate 81 and the magnet 9, then the movable plate 81 is carried by the connecting rod 8 to move synchronously, at the moment, the fixed plate 80 and the movable plate 81 are arranged asymmetrically in the cavity of the connecting rod 8, when the gas in the gas storage cavity 11 continues to enter the sliding cavity 7, part of the gas in the sliding cavity 7 enters the cavity of the connecting rod 8 and is discharged from the gas blowing holes 82, in the process that the gas passes through the cavity of the connecting rod 8, the pressure applied to the gas is not uniform due to the asymmetrical arrangement of the movable plate 81 and the fixed plate 80, the connecting rod 8 vibrates, the connecting rod 8 drives the filter cloth 6 to vibrate, so that the residual filter residues on the filter cloth 6 fall off, the gas discharged from the gas blowing holes 82 can be blown to the back side of the filter cloth 6 at an inclined angle, and then the back blowing operation is performed on the filter cloth 6, so that the filter residues on the surface of the filter cloth 6 are blown by the gas, and further the filter cloth 6 is separated, and finally the filter residue separated from the filter cloth 6 falls into a collecting device at the bottom for subsequent treatment, which is a working cycle.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a reduce plate frame filter press filter plate mechanism of filter residue water content, includes filter plate main part (1), its characterized in that: the left and right sides of filter plate main part (1) all is provided with recess (2), the position at filter plate main part (1) middle part is provided with through-hole (3), through-hole (3) run through recess (2) of the left and right sides, the inside position that is located recess (2) of filter plate main part (1) has seted up hole (4) of permeating water, drainage chamber (5) have been seted up to filter plate main part (1) inside, recess (2) are through permeating water hole (4) and drainage chamber (5) intercommunication, the fixed surface of recess (2) installs filter cloth (6), filter cloth (6) are elastic material, filter cloth (6) and recess (2) are the contactless setting.

2. The filter plate mechanism of a plate and frame filter press for reducing the water content of filter residue as claimed in claim 1, wherein: the filter plate is characterized in that a sliding cavity (7) is fixedly arranged at the corner of the groove (2) inside the filter plate main body (1), a connecting rod (8) is slidably arranged in a cavity of the sliding cavity (7), gas is filled in the position, located on the upper portion of the connecting rod (8), in the inner cavity of the sliding cavity (7), the bottom end of the connecting rod (8) penetrates through the groove (2), and the bottom end of the connecting rod (8) is fixedly connected with the center of the back face of the filter cloth (6).

3. The filter plate mechanism of a plate and frame filter press for reducing the water content of filter residue as claimed in claim 2, wherein: air duct (10) have been seted up jointly to smooth chamber (7) inside and filter plate main part (1) inside, the one end of air duct (10) and the cavity intercommunication of smooth chamber (7), the fixed position of the inside upper surface middle part of filter plate main part (1) installs gas storage chamber (11), gas storage chamber (11) and the other end intercommunication of air duct (10), the inner chamber slidable mounting of gas storage chamber (11) has piston (12), the lower fixed surface of piston (12) installs elastic component (13), the other end of elastic component (13) and the bottom surface fixed connection of gas storage chamber (11).

4. The filter plate mechanism of a plate and frame filter press for reducing the water content of filter residue as claimed in claim 2, wherein: the cavity has been seted up to the inside of connecting rod (8), one side fixed mounting of connecting rod (8) inner wall has fixed plate (80), the opposite side slidable mounting of connecting rod (8) inner wall has movable plate (81), movable plate (81) are magnetic material, the position fixed mounting that lies in movable plate (81) one side on sliding chamber (7) inner wall has magnet (9), magnet (9) and movable plate (81) are heteropolar looks and inhale.

5. The filter plate mechanism of a plate and frame filter press for reducing the water content of filter residue as claimed in claim 2, wherein: the air blowing device is characterized in that an air blowing hole (82) is formed in the bottom end of the connecting rod (8), the air blowing hole (82) is obliquely arranged, and the air blowing hole (82) is communicated with a cavity of the connecting rod (8).