CN215855726U - Heavy filter pressing mechanism for sludge dewatering equipment - Google Patents
Heavy filter pressing mechanism for sludge dewatering equipment Download PDFInfo
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- CN215855726U CN215855726U CN202122149147.5U CN202122149147U CN215855726U CN 215855726 U CN215855726 U CN 215855726U CN 202122149147 U CN202122149147 U CN 202122149147U CN 215855726 U CN215855726 U CN 215855726U
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Abstract
The utility model discloses a heavy filter pressing mechanism for sludge dewatering equipment, which comprises a plurality of filter pressing plate assemblies which are vertically arranged in parallel, wherein a sealing assembly is arranged between every two adjacent filter pressing plate assemblies, and each sealing assembly is communicated with a sludge inlet pipe; the two filter pressing plate assemblies are close to each other and are combined and sealed with the middle sealing assembly; the sludge injection device is also used for injecting sludge into the sealing assembly through the sludge inlet pipe after merging and sealing; the device is also used for carrying out filter pressing and pressure maintaining on the sludge; and also for separation to discharge the cake after the pressure holding is completed. The utility model solves the problem that the existing sludge dewatering equipment can not meet the requirements of higher dewatering efficiency and dewatering rate at the same time.
Description
Technical Field
The utility model belongs to the technical field of solid-liquid dehydration, and particularly relates to a heavy type filter pressing mechanism for sludge dehydration equipment.
Background
At present, sludge dewatering equipment on the market is various, such as a plate-and-frame filter press, a stacked screw dewatering machine, a belt type dewatering machine, a centrifugal dewatering machine and the like, the machine type with the dewatering rate of below 50 percent is few, even if the machine type with the dewatering rate is extremely low, the treatment capacity of less than 10 tons exists in some days. The mud cakes subjected to filter pressing treatment by a plurality of filter pressing plate devices are large in thickness and small in pressure of a filter pressing host machine, so that the dehydration efficiency and the dehydration rate of the devices are poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a heavy type filter pressing mechanism for sludge dewatering equipment, which solves the problem that the existing sludge dewatering equipment cannot meet the requirements of higher dewatering efficiency and dewatering rate at the same time.
The utility model adopts the following technical scheme: a heavy filter pressing mechanism for sludge dewatering equipment comprises a plurality of filter pressing plate assemblies which are vertically arranged in parallel, a sealing assembly is arranged between every two adjacent filter pressing plate assemblies, and each sealing assembly is communicated with a sludge inlet pipe;
the filter press plate assembly includes:
the filter pressing plate is of a quadrilateral frame structure, a plurality of transverse and longitudinal partition plates are arranged in the filter pressing plate in a crossed mode, and a water outlet is formed in the bottom of the frame;
the two sealing pressure plates are of hollow quadrilateral structures and are embedded at two sides of the pressure filter plate, and a return spring is arranged between the sealing pressure plates and the pressure filter plate;
the two permeable plates are flat plates provided with a plurality of waist-shaped holes in an array manner and are used for being packaged on two side surfaces of the pressure filter plate, so that a permeable space is formed inside the pressure filter plate;
the two rollers are arranged at two ends of the filter pressing plate;
the filter cloth bypasses the two rollers and is arranged around the periphery of the filter pressing plate;
the two filter pressing plate assemblies are close to each other and are combined and sealed with the middle sealing assembly; the sludge injection device is also used for injecting sludge into the sealing assembly through the sludge inlet pipe after merging and sealing; the device is also used for carrying out filter pressing and pressure maintaining on the sludge; and also for separation to discharge the cake after the pressure holding is completed.
Further, the seal assembly includes:
the sealing ring is of a quadrilateral frame structure, and elastic materials are coated outside the sealing ring;
the mud inlet pipe is a one-way valve, is communicated with the side edge of the sealing ring and is used for introducing mud into the sealing ring;
at least two sealing washer guide blocks set separately on the left and right sides of the sealing washer.
Furthermore, the upper side and the lower side of the filter cloth are respectively provided with a mud scraping mechanism.
Furthermore, the left side and the right side of the filter pressing plate are respectively provided with at least one filter pressing plate guide block.
Further, the two main squeezing plates are vertically arranged and are respectively positioned at the left end and the right end of the outermost side pressing plate component;
and the two squeezing main cylinders are respectively connected to the outer sides of the two main squeezing plates and are used for pushing the filter pressing plate assemblies to move towards or away from each other.
The utility model has the beneficial effects that:
1. according to the utility model, a plurality of filter pressing plate assemblies which are vertically arranged in parallel are adopted, the sealing assembly is arranged between the adjacent filter pressing plate assemblies, when the adjacent filter pressing plate assemblies are closed and sealed, a mud injection space is formed by closing the adjacent filter pressing plate assemblies and the sealing assembly, the width of the mud injection space is the thickness of a mud injection layer, the structural design can realize the injection of thinner mud layer thickness, the mud distribution thickness of equipment is not more than 15mm, the mud is forcibly pressed by a large-tonnage press, the thickness of the obtained mud cake is about 3-5mm on average, the average water content is 40-45%, the time for completing one period is about 30 minutes on average, the machine can treat about 30-50 tons of mud per day, and the dehydration rate and the dehydration efficiency are far superior to those of other filter presses in the market.
2. The pressure filter plate is made of high-strength aluminum alloy materials and has the advantages of light weight, high strength, difficult deformation, corrosion resistance and the like; the inside stainless steel frame that is of seal assembly, seal assembly main function is when two sets of filter pressing board components compound die, closely cohesion with corresponding seal pressing board stroke in order to guarantee cloth mud, not leak thick liquid when squeezing. The filter-pressing plate made of aluminum alloy and the sealing assembly made of stainless steel can bear higher pressure provided by the main squeezing oil cylinder, and the higher dehydration pressure is realized by matching the whole system.
Drawings
FIG. 1 is a schematic structural view of a filter pressing plate assembly of a heavy filter pressing mechanism for sludge dewatering equipment according to the present invention;
FIG. 2 is a schematic view of a partial structure of a longitudinal section of a filter pressing plate assembly of a heavy filter pressing mechanism for sludge dewatering equipment according to the present invention;
FIG. 3 is a schematic structural diagram of a filter pressing plate of a heavy filter pressing mechanism for sludge dewatering equipment according to the present invention;
FIG. 4 is a schematic structural view of a sealing assembly of a heavy filter pressing mechanism for sludge dewatering equipment according to the present invention;
5-1 to 5-4 are schematic diagrams of the filter pressing assembly and the sealing assembly of the heavy filter pressing mechanism for the sludge dewatering equipment in the matching state of the opening state, the sludge distributing state, the pressure maintaining state and the sludge discharging state respectively.
Wherein, 4, filter pressing plate assembly, 10, sludge and 11, mud cake; 41. the device comprises a filter pressing plate, 42 parts of a water permeable plate, 43 parts of filter cloth, 44 parts of a return spring, 45 parts of a sealing pressing plate, 46 parts of a roller, 47 parts of a mud scraping mechanism, 48 parts of a filter pressing plate guide block and 49 parts of a water outlet; 81. sealing ring, 82 mud inlet pipe, 83 sealing ring guide block.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The utility model provides a heavy filter pressing mechanism for sludge dewatering equipment, which comprises a plurality of filter pressing plate assemblies 4 which are vertically arranged in parallel, as shown in figure 5-1, a sealing assembly 8 is arranged between every two adjacent filter pressing plate assemblies 4, and each sealing assembly 8 is communicated with a sludge inlet pipe 82. Each filter pressing plate component 4 is used for moving towards each other under the action of the two main squeezing oil cylinders, and after the two main squeezing oil cylinders are combined and sealed, sludge is injected into the sealing component 8 through the sludge inlet pipe 82; the filter pressing device is also used for continuously moving in opposite directions after the sludge is injected so as to filter press the sludge; and the filter pressing and pressure maintaining device is also used for separating to discharge dewatered mud cakes after filter pressing and pressure maintaining are finished.
As shown in fig. 5-1 and 5-2, each filter press plate assembly 4 is used for moving towards each other under the action of two main squeezing cylinders, and after being combined and sealed, sludge 10 is injected into the sealing assembly 8 through a sludge inlet pipe 82. As shown in fig. 5-3, each filter press plate assembly 4 is also adapted to continue moving toward each other to filter-press the sludge 10 after the sludge is injected. As shown in fig. 5-4, each filter press plate assembly 4 is also used for separation to discharge the dewatered cake 11 after completion of press filtration and pressure holding.
As shown in fig. 1-2, the filter press plate assembly 4 includes a filter press plate 41, two sealing press plates 45, two water permeable plates 42, two drums 46, and a filter cloth 43.
As shown in fig. 3, the filter press plate 41 has a quadrangular frame structure, the middle of the filter press plate is hollow, a plurality of transverse and longitudinal partition plates are crosswise arranged in the filter press plate 41, and a drain port 49 is arranged at the bottom of the frame. As shown in fig. 2, a circle of grooves are formed along the left and right sides of the quadrilateral frame of the filter press plate 41, a return spring 44 is installed in each groove, a sealing press plate 45 is installed on each return spring 44, and each sealing press plate 45 is of a hollow quadrilateral structure. Two permeable plates 42 are respectively packaged on two side surfaces of the filter pressing plate 41, and each permeable plate 42 is a flat plate structure provided with a plurality of waist-shaped holes. The left and right water permeable plates 42 form a water permeable space together with the middle filter press plate 41 inside the filter press plate 41. The function of the permeable plate 42 is to allow the filtered sewage to pass through the permeable holes 42 into the inside of the filter press plate 41 and finally to be discharged from the water outlet 49. Two ends of the filter pressing plate 41 are respectively provided with a roller 46, wherein one roller 46 is an electric roller, and the other roller is a driven roller. A filter cloth 43 is provided around the two drums 46 and the outside of the filter press plate 41.
The filter pressing plate 41 is made of high-strength aluminum alloy material, has the advantages of light weight, high strength, difficult deformation, corrosion resistance and the like, is of a hollow structure with a frame inside, and is provided with a filter pressing plate guide block 48 and a water outlet 49 on two sides of the filter pressing plate 41 as shown in fig. 3. During pressing, water enters the bottom of the filter pressing plate 41 through the water permeable plate 42, enters the water outlet 49 through the water collecting tank at the bottom, and finally flows into the water collecting tank 9 through the pipe.
In some embodiments, as shown in fig. 4, the seal assembly 8 includes a seal ring 81, a mud tube 82, and two seal ring guide blocks 83. Wherein, the sealing ring 8 is a hollow quadrilateral frame, and the outside is coated with an elastic material, such as vulcanized rubber. The mud inlet pipe 82 is a one-way valve, and the mud inlet pipe 82 is communicated with the side edge of the sealing ring 81 and is used for introducing mud into the sealing ring 81. At least two sealing ring guide blocks 83 are arranged on the left side and the right side of the sealing ring 81, and smooth reciprocating movement of the sealing component 8 can be realized under the auxiliary action of the two sealing ring guide blocks 83.
The sealing assembly 8 is clamped between two adjacent filter pressing plate assemblies 4, when the adjacent filter pressing plates 41 are closed, the middle sealing assembly 8 can be respectively contacted with the filter cloth 43 and the sealing pressing plate 45 on the filter pressing plates 41 at two sides under the action of two side pressure forces, and the sealing pressing plate 45, the filter cloth 43 and the sealing assembly 8 are tightly attached due to the reaction force of the return spring 44. The sealing assembly 8 mainly functions to be tightly combined with the corresponding stroke of the sealing pressure plate 45 when the two groups of filter press plate assemblies 4 are assembled so as to ensure that slurry is not leaked during sludge distribution and squeezing. The inside stainless steel frame that is of seal assembly 8, outside both sides vulcanite forms, and the upper and lower both sides all have sealing washer guide slide block 83, can freely slide on the track to can guarantee not displacement about, can be fine with the laminating of filter-pressing board subassembly 4 not deviation.
The return springs 44 and the sealing press plates 45 arranged on the two sides of the filter pressing plates 41 clamp the sealing assemblies 8 between the filter pressing plate assemblies 4 under the action of two side pressures when the filter pressing plate assemblies 4 are assembled, and the reaction force of the return springs 44 can ensure that the sealing press plates 45 and the filter cloth 43 are attached very tightly to achieve the purpose of sealing, so that the sealing is more tight when the pressure of the squeezing main cylinder is higher. After the filter press plate assembly 4 and the sealing assembly 8 are completely sealed, the sludge 10 can be injected into the interior through the sludge inlet pipe 82 of the sealing assembly 8, and the sludge inlet pipe 82 is arranged outside the sealing assembly 8 and is a single valve, namely, the sludge can only enter but not exit until the inner cavity is filled, wherein the inner cavity is a cavity formed by the water permeable plate 42 and the sealing assembly 8. When the squeezing is started, the two squeezing main cylinders continue to move forward, the return spring 44 has a certain amount of stroke, the filter pressing plates 41 can also continue to be pressed, the squeezing main cylinders stop moving forward until the two filter pressing plates 41 clamp the mud cakes 11 and cannot be attached, a heavy type filter pressing mechanism for sludge dewatering equipment enters a pressure maintaining state, and the solid-liquid separation process is carried out in the process.
In some embodiments, as shown in fig. 1, a mud scraping mechanism 47 is disposed on each of the upper and lower sides of the filter cloth 43.
In some embodiments, as shown in fig. 1, at least one filter press plate guide block 48 is provided on each of the left and right sides of the filter press plate 41, and the filter press plate 41 can smoothly reciprocate with the aid of the filter press plate guide blocks 48.
In some embodiments, two vertically disposed main press plates are located on the left and right sides of the outermost filter press plate assembly 4. The outer side of each main press plate is connected with a main press cylinder, and the pressure of the main press cylinder is generally more than 16 mpa. Through the action of squeezing towards the middle by the two squeezing main cylinders, the filter pressing plate assemblies 4 can be pushed to move oppositely, and sludge between the filter pressing plate assemblies 4 is squeezed and dewatered. The squeezing main oil cylinder can drive the filter pressing plate assembly 4 to move, and switching of the filter pressing plate assembly 4 among three states of die assembly, squeezing and opening is achieved.
The utility model relates to a working method of a heavy type filter pressing mechanism for sludge dewatering equipment, which comprises the following steps: every two filter pressing plate assemblies 4 are close to each other and are combined with a middle sealing assembly 8 for sealing; injecting sludge into a closed space formed by the sealing assembly 8 and the two adjacent filter pressing plate assemblies 4 through the sludge inlet pipe 82; the two filter pressing plate assemblies 4 are continuously close to each other so as to filter press and dewater the sludge in the closed space; every two of the filter pressing plate assemblies 4 keep relative positions so as to maintain pressure of sludge in the closed space; after the pressure maintaining is completed, every two filter pressing plate assemblies 4 are separated from each other, and simultaneously mud cakes attached to the filter pressing plate assembly 4 on one side are discharged.
Two filter pressing plate assemblies 41 are close to each other, the sealing assemblies 8 are attached to the sealing pressing plates 45, a closed space is formed in the process, after the mold is closed and sealed, the distance between the two filter pressing plate assemblies 41 is kept unchanged, and grouting is carried out in the closed space through the mud inlet pipe 82 until each layer of closed space is filled. Then, the two filter press plate assemblies 4 are continuously close to each other, and as the closed space is compressed, moisture in the sludge is squeezed out, enters the interior of the filter press plate 41 through the filter cloth 43 and the water permeable plate 42, flows back to the water outlet 49 on one side or two sides of the filter press plate 41, and finally enters the water collection tank through the confluence tank. The press machine drives the filter pressing plate assemblies 41 to move, the main oil cylinders of the press machine respectively move outwards, the filter pressing plate assemblies 41 on each layer are opened, the rollers are driven to rotate, and then mud cakes can be discharged.
Examples
As shown in fig. 5-1 to 5-4, when the hydraulic system is powered on, the pistons of the two squeezing main cylinders move forward until all the filter press plate assemblies 4 are assembled, the two squeezing main cylinders are provided with travel limit switches, and when all the filter press plate assemblies 4 are closed and sealed, the squeezing main cylinders stop working. At this time, the sludge enters the middle cavity of the two filter pressing plates 41 from the sealing ring 81, and a sludge inlet pipe 82 is arranged outside the sealing assembly 8, so that the sludge can only enter but can not exit. The mud distribution main pipeline is provided with a pressure sensor, when the mud between every two layers of filter pressing plates 41 is fully distributed, the pressure on the mud distribution main pipeline can rise, when the pressure reaches a set value, the pressure sensor acts and gives a signal to the controller, and the controller sends a command to stop the screw pump after obtaining the model. And then, the hydraulic system works, the two squeezing main cylinders apply pressure to the opposite squeezing filter plate, when the two squeezing main cylinders are difficult to extend forwards, the two main squeezing cylinders 1 are not extended forwards any more, the system enters a pressure maintaining state, the process is a solid-liquid separation and dehydration process, and the duration is 20 minutes.
During the pressing process of the sludge, the water obtained by pressure filtration flows to the drainage port 49 of the filter pressing plate along the water channel inside each layer of filter pressing plate 41, and finally is collected into the water collection tank. After the pressing time has elapsed, the filter press plates 41 are gradually opened. Then, the electric roller on each laminated filter plate 41 rotates, the electric roller drives the filter cloth 43 to do up-and-down rotary motion, the squeezed sludge 10 is changed into mud cakes 11, the mud cakes 11 fall down along with the movement of the electric roller under the action of gravity, and the mud cakes fall into the bottom of the machine and are pushed to the outside of the machine.
The process of die assembly, pumping, squeezing, cake discharging and cake discharging is a cycle period, and the process of sludge squeezing is a cyclic reciprocating process of the actions.
According to the utility model, a plurality of filter pressing plate assemblies which are vertically arranged in parallel are adopted, the sealing assembly is arranged between the adjacent filter pressing plate assemblies, when the adjacent filter pressing plate assemblies are closed and sealed, a mud injection space is formed by closing the adjacent filter pressing plate assemblies and the sealing assembly, the width of the mud injection space is the thickness of a mud injection layer, the structural design can realize the injection of thinner mud layer thickness, the mud distribution thickness of equipment is not more than 15mm, the mud is forcibly pressed by a large-tonnage press, the thickness of the obtained mud cake is about 3-5mm on average, the average water content is 40-45%, the time for completing one period is about 30 minutes on average, the machine can treat about 30-50 tons of mud per day, and the dehydration rate and the dehydration efficiency are far superior to those of other filter presses in the market.
The pressure filter plate is made of high-strength aluminum alloy materials and has the advantages of light weight, high strength, difficult deformation, corrosion resistance and the like; the inside stainless steel frame that is of seal assembly, seal assembly main function is when two sets of filter pressing board components compound die, closely cohesion with corresponding seal pressing board stroke in order to guarantee cloth mud, not leak thick liquid when squeezing. The filter-pressing plate made of aluminum alloy and the sealing assembly made of stainless steel can bear higher pressure provided by the main squeezing oil cylinder, and the higher dehydration pressure is realized by matching the whole system.
Claims (5)
1. The heavy filter pressing mechanism for the sludge dewatering equipment is characterized by comprising a plurality of filter pressing plate assemblies (4) which are vertically arranged in parallel, a sealing assembly (8) is arranged between every two adjacent filter pressing plate assemblies (4), and a sludge inlet pipe (82) is communicated with each sealing assembly (8);
the filter press plate assembly (4) comprises:
the filter pressing plate (41) is of a quadrilateral frame structure, a plurality of transverse and longitudinal partition plates are arranged in the filter pressing plate in a crossed mode, and a water outlet (49) is formed in the bottom of the frame;
the two sealing pressure plates (45) are of hollow quadrilateral structures and are embedded at two sides of the filter pressing plate (41), and a return spring (44) is arranged between each sealing pressure plate (45) and the filter pressing plate (41);
the two water permeable plates (42) are flat plates provided with a plurality of waist-shaped holes in an array mode and are used for being packaged on two side faces of the pressure filter plate (41) to enable a water permeable space to be formed inside the pressure filter plate (41);
two rollers (46) provided at both ends of the filter press plate (41);
a filter cloth (43) which bypasses the two rollers (46) and is arranged around the periphery of the filter pressing plate (41);
the filter pressing plate assemblies (4) are close to each other and are combined with the middle sealing assembly (8) for sealing; the device is also used for injecting sludge into the sealing assembly (8) through the sludge inlet pipe (82) after merging and sealing; the device is also used for carrying out filter pressing and pressure maintaining on the sludge; and also for separation to discharge the cake after the pressure holding is completed.
2. A heavy filter press mechanism for sludge dewatering equipment according to claim 1, characterized in that the sealing assembly (8) comprises:
the sealing ring (81) is of a quadrilateral frame structure, and elastic materials are coated outside the sealing ring;
the sludge inlet pipe (82) is a one-way valve, is communicated with the side edge of the sealing ring (81), and is used for introducing sludge into the sealing ring (81);
and at least two sealing ring guide blocks (83) which are respectively arranged at the left side and the right side of the sealing ring (81).
3. A heavy duty filter press mechanism for sludge dewatering equipment according to claim 1 or 2, wherein a mud scraping mechanism (47) is provided on each of upper and lower sides of the filter cloth (43).
4. A heavy filter press mechanism for sludge dewatering equipment according to claim 3, wherein at least one filter press plate guide block (48) is provided on each of the left and right sides of the filter press plate (41).
5. The heavy-duty filter pressing mechanism for sludge dewatering equipment according to claim 1 or 2, characterized in that two main press plates (3) are vertically arranged and respectively located at the left and right ends of the outermost filter press plate assembly (4);
and the two squeezing main oil cylinders (2) are respectively connected to the outer sides of the two main squeezing plates (3) and are used for pushing the filter pressing plate assemblies (4) to move in the opposite direction or in the opposite direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122149147.5U CN215855726U (en) | 2021-09-07 | 2021-09-07 | Heavy filter pressing mechanism for sludge dewatering equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122149147.5U CN215855726U (en) | 2021-09-07 | 2021-09-07 | Heavy filter pressing mechanism for sludge dewatering equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111921238A (en) * | 2020-08-29 | 2020-11-13 | 聂麒曌 | Full-automatic filter press |
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2021
- 2021-09-07 CN CN202122149147.5U patent/CN215855726U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111921238A (en) * | 2020-08-29 | 2020-11-13 | 聂麒曌 | Full-automatic filter press |
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