CN210159295U - High-pressure filter - Google Patents

Abstract

The utility model provides a high-pressure filter belongs to filter equipment technical field, place the filter disc of silo, drive filter disc rotatory power device, spiral agitating unit and compressed air storage tank in the silo. A sealing shell is arranged on the outer side of the trough and is connected with the trough to form a sealing cavity, a liquid inlet communicated with the sealing cavity is formed in the surface of the sealing shell, and an ultrasonic liquid level controller is installed at the position of the liquid inlet. The filter disc also comprises a screw shaft and a filter disc body; the end part of the screw shaft penetrates out of the sealing shell, an axial hole is formed in one end face of the screw shaft, and a radial hole communicated with the axial hole is formed in the surface of the screw shaft; the filter disc body is fixed on the screw shaft, the radial hole is formed in the fixed connection position of the filter disc body and the screw shaft, and filtrate flowing into the filter disc body enters the axial hole through the radial hole of the screw shaft and is discharged out of the sealed cavity; the spiral stirring device is arranged at the bottom of the trough; the compressed air storage tank is externally arranged on the sealing shell and communicated with the sealing cavity. The utility model discloses can realize the filtration under the high-pressure environment.

Description

High-pressure filter

Technical Field

The utility model belongs to the technical field of the filter technique and specifically relates to a high pressure filter.

Background

The ceramic filter is a novel, high-efficiency and energy-saving solid-liquid separation device commonly used in the world. The ceramic filter mainly comprises a roller system, a stirring system, a feeding and discharging system, a vacuum system, a gas distribution system, a filtrate discharge system, a scraping system, a back flushing system, a combined cleaning (ultrasonic cleaning and automatic acid preparation cleaning) system, a full-automatic control system, a tank body and a frame. The core part of the filter is a ceramic filter plate, which is also called ceramic filter membrane, ceramic plate, filter plate, etc. and is a novel filter medium made of corundum, silicon carbide, etc. by special process. The defects of the ceramic filter plate are as follows: the use cost is high, mainly the cleaning cost is high, the structure of the whole machine is complex, and an acid washing and ultrasonic system is required to be arranged, so that the environment is polluted; easy blockage, short service life, low mechanical strength, easy fragmentation during back washing and vacuum suction, and low temperature resistance; and because the material limits, the filtering area can not be too large, so that the whole machine can not be large-sized.

Disclosure of Invention

The technical task of the utility model is to solve the not enough of prior art, provide a high pressure filter, especially improve the filtration environment, improve complete machine filtration efficiency.

The utility model provides a technical scheme that its technical problem adopted is:

a high-pressure filter structurally comprises a feed tank filled with slurry, a filter disc arranged in the feed tank, and a power device for driving the filter disc to rotate around the axis of the filter disc. A sealing shell is arranged on the outer side of the trough, the inner wall of the sealing shell is connected with the outer wall of the trough to form a sealing cavity, a liquid inlet communicated with the sealing cavity is formed in the surface of the sealing shell, and an ultrasonic liquid level controller is installed at the position of the liquid inlet. The filter disc also comprises a screw shaft and a filter disc body; two ends of the screw shaft penetrate out of the sealing shell through the bearing block, a filter cake thickness ultrasonic detector is arranged at the end part of the screw shaft extending out of the sealing shell, an axial hole is formed in one end face of the screw shaft, a radial hole communicated with the axial hole is formed in the surface of the screw shaft, and the end part of the screw shaft, which is not provided with the axial hole, is connected with a power device; the filter disc body is fixed on the screw shaft, the central axis of the filter disc body is coincided with the central axis of the screw shaft, the radial hole is formed in the fixed connection position of the filter disc body and the screw shaft, and filtrate flowing into the filter disc body enters the axial hole through the radial hole of the screw shaft and is discharged out of the sealed cavity.

The high-pressure filter also comprises a spiral stirring device and a compressed air storage tank; the spiral stirring device is arranged at the bottom of the feed trough and below the filter disc; the compressed air storage tank is externally arranged on the sealing shell, and the outlet end of the compressed air storage tank is communicated with the sealing cavity downwards.

Optionally, the high-pressure filter further comprises a scraper and a screw discharging device. The scraper is arranged on the inner wall of the material groove or the sealed shell, the scraper is positioned on the side surface of the filter disc, the screw discharging device is arranged outside the sealed shell, and the feeding end of the screw discharging device is upwards communicated with the sealed cavity; when the power device drives the filter disc to rotate, the scraper scrapes filter cakes on the surface of the filter disc and enables the filter cakes to fall into the feed end of the screw discharging device from the sealed cavity.

Optionally, the related filter disc body comprises a support plate and a sintering net tightly coated on the outer surface of the support plate, the support plate is a disc structure with a middle hole, the support plate comprises a first support plate body, a second support plate body and a sealing ring, a plurality of through holes are formed in the surfaces of the first support plate body and the second support plate body, the first support plate body and the second support plate body are in parallel symmetry, the sealing ring is located between the first support plate body and the second support plate body, and the sealing ring is in sealing connection with the outer side edges of the first support plate body and the second support plate body.

Optionally, the sintered mesh sequentially includes a protective layer, a filter layer, a flow guide layer, and a base layer from outside to inside, and the pore density of the filter layer is far less than the pore densities of the protective layer, the flow guide layer, and the base layer.

Preferably, the support plate is made of punched plate or engineering plastic.

Optionally, the number of the screw shafts is one, and the number of the filter disc bodies is 1-20.

Optionally, the number of the related screw shafts is at least two, the screw shaft connected with the power device is provided with an axial hole, the other screw shafts are provided with axial through holes, and adjacent screw shafts are arranged in series and are in threaded connection to form a linear filtering channel; the quantity of the filter disc bodies is the same as that of the screw shafts, and the filter disc bodies are fixed with the screw shafts one to one.

Optionally, the hermetically sealed housing in question is surface mounted with a sight glass.

Optionally, the high-pressure filter further comprises a back-washing system, the back-washing system is located at the axial hole end of the screw shaft, and the water outlet end of the back-washing system is matched with the axial hole of the screw shaft.

Optionally, the related screw shaft is connected with the sealing shell through a bearing seat, and a mechanical seal is installed between the bearing seat and the sealing shell.

Compared with the prior art, the high-pressure filter of the utility model has the following beneficial effects:

1) the utility model has simple structure and small volume, the inner wall of the sealing shell is connected with the outer wall of the material groove to form a sealing cavity, the compressed air storage tank is communicated with the sealing cavity, and the sealing cavity forms a high-pressure environment by conveying compressed air to the sealing cavity, so that a pressure difference is formed between the inside and the outside of the filter disc, and the filtering efficiency is improved;

2) the utility model discloses a filter disc can be upsized, can accomplish more than 20 square meters per circle, adopt the sintering net as the filter media again, this kind of filter media not only has even stable filter fineness but also has high mechanical strength and compressive strength, its filter mechanism is the surface course and filters, and the mesh pore is smooth, so it has excellent back flush regeneration performance, can use repeatedly for a long time, only need 4 to 8 hours back flush once, the time is only one minute, and do not need the pickling, do not need to shut down, especially be suitable for serialization and automatic operation process;

3) the utility model discloses a filter has advantage small, that filtration efficiency is high, and back flush system in addition can also reduce the probability and the use cost that take place the jam accident in the filtering process, increases the filter time, increase of production.

Drawings

Fig. 1 is a front view of the first embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line M-M of FIG. 1;

FIG. 3 is a partially enlarged sectional view of a filter disk in accordance with the first embodiment;

FIG. 4 is an enlarged structural view of A in FIG. 3;

FIG. 5 is an enlarged fragmentary surface view of the first punch plate body of FIG. 3;

FIG. 6 is an enlarged structural view of B in FIG. 3;

fig. 7 is a partially enlarged sectional view of the filter disk of the second embodiment.

In the drawings, the various reference numbers indicate:

100. a back washing system 200, a material groove 300, a filter disc 400 and a power device,

500. a scraper plate 600, a screw discharging device 700, a compressed air storage tank,

800. a helical stirring device;

210. a sealed shell 220, a sealed cavity 230, a liquid inlet 240 and a sight glass;

310. a screw shaft 311, an axial hole 312, a radial hole 313, an axial through hole;

320. a filter disc body 330, a punching plate 340 and a sintering net;

331. a first punching plate body 332, a second punching plate body 333, a seal ring,

334. a through hole 335, a groove;

510. a blade;

341. a protective layer 342, a filter layer 343, a flow guide layer 344, a base layer;

a. b, an ultrasonic liquid level controller, and an ultrasonic detector for filter cake thickness;

in fig. 7, reference numeral ①②③ denotes a screw shaft connected in series, wherein the right end of the screw shaft ① is connected with a power device.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings of the specification. While the specification drawings show exemplary embodiments of the disclosure, it should be understood that the disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

For better explanation of the present invention, the technical solution will now be further explained with reference to the specific embodiments and the drawings. Although the present invention has been described in connection with the above embodiments, it should be understood that the present invention is not limited to the above embodiments, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention.

The first embodiment is as follows:

as shown in fig. 1 and 2, the present invention provides a high pressure filter, which comprises a material tank 200 filled with slurry, a filter disc 300 arranged in the material tank 200, and a power device 400 for driving the filter disc 300 to rotate around its axis. A sealing shell 210 is arranged on the outer side of the trough 200, a sealing cavity 220 is formed by the connection of the inner wall of the sealing shell 210 and the outer wall of the trough 200, a liquid inlet 230 communicated with the sealing cavity 220 is formed in the surface of the sealing shell 210, and an ultrasonic liquid level controller a is installed at the position of the liquid inlet 230.

As shown in fig. 3-6, in order to achieve good filtration, the structure of the filter disc 300 specifically includes a screw shaft 310 and 12 filter disc bodies 320. The two ends of the screw shaft 310 penetrate out of the sealing shell 210 through the bearing seats, the end part of the screw shaft 310 extending out of the sealing shell 210 is provided with a filter cake thickness ultrasonic detector b, the left end face of the screw shaft 310 is provided with an axial hole 311, the surface of the screw shaft 310 is provided with 12 radial holes 312 communicated with the axial hole 311, and the right end part of the screw shaft 310 is connected with a power device. The filter disc body 320 is fixed to the screw shaft 310, the central axis of the filter disc body 320 coincides with the central axis of the screw shaft 310, the radial hole 312 is formed at the fixed connection position of the filter disc body 320 and the screw shaft 310, and the filtrate flowing into the filter disc body 320 enters the axial hole 311 through the radial hole 312 of the screw shaft 310 and is discharged out of the sealed cavity 220.

As shown in fig. 3 and 6, in the present embodiment, the perforated plate is taken as an example, and the filter disc body 320 includes a perforated plate 330 for supporting and a sintered mesh 340 tightly wrapped on the perforated plate 330.

As shown in fig. 3, 4, 5 and 6, the punching plate 330 is a disk structure with a hole in the middle, and the sintered mesh 340 tightly covers the outer surface of the punching plate 330; the punching plate 330 includes a first punching plate body 331, a second punching plate body 332, and a seal ring 333, and a plurality of through holes 334 are provided on the surfaces of the first punching plate body 331 and the second punching plate body 332, respectively; the first and second punching plate bodies 331 and 332 are parallel-symmetrical; the sealing ring 333 is located between the first punching plate body 331 and the second punching plate body 332, and the sealing ring 333 is connected to the outer edges of the first punching plate body 331 and the second punching plate body 332 in a sealing manner, so that the liquid filtered by the filter disc body 320 passes through the sintering net 340, enters a filtering cavity defined by the first punching plate body 331, the second punching plate body 332 and the sealing ring 333, finally flows into the axial hole 311 through the radial hole 312 of the screw shaft 310, and is discharged out of the sealing cavity through the axial hole 311. It should be added here that, in order to better realize the connection of the first punching plate body 331, the second punching plate body 332 and the sealing ring 333, a plurality of grooves 335 may be further disposed on the surfaces of the first punching plate body 331 and the second punching plate body 332, the plurality of grooves 335 are divided into at least two groups, adjacent grooves 335 in the same group are connected to form a straight line perpendicular to the central axis of the screw shaft 310, the through hole 334 is located between the adjacent groups of grooves 335, the grooves 335 in different punching plate bodies are welded to realize the fixed connection of the first punching plate body 331 and the second punching plate body 332, and further, the fixed connection of the first punching plate body 331, the second punching plate body 332 and the sealing ring 333 is realized.

As shown in fig. 3 and 6, the sintered mesh 340 includes a protective layer 341, a filter layer 342, a flow guiding layer 343, and a base layer 344 in sequence from outside to inside, and the pore density of the filter layer 342 is much smaller than the pore density of the protective layer 341, the flow guiding layer 343, and the base layer 344.

As shown in fig. 1 and 2, the high pressure filter further comprises a spiral stirring device 800 and a compressed air storage tank 700; the spiral stirring device 800 is arranged at the bottom of the trough 200 and below the filter disc 300; the compressed air storage tank 700 is externally arranged on the sealing shell 210, and the outlet end of the compressed air storage tank 700 is downwards communicated with the sealing cavity 220.

As shown in the attached figures 1 and 2, the high-pressure filter also comprises a scraper 500 and a screw discharging device 600. The scraping plate 500 is arranged on the trough 200 and positioned on the side surface of the filter disc 300, the screw discharging device 600 is externally arranged on the sealing shell 210, and the feeding end of the screw discharging device 600 is upwards communicated with the sealing cavity 220; when the power device drives the filter disc 300 to rotate, the scraper 500 scrapes off the filter cake on the surface of the filter disc 300 and causes the filter cake to fall from the sealing cavity 220 into the feeding end of the screw discharging device 600.

As shown in fig. 1-6, in the operation of this embodiment, the power device 400 drives the screw shaft 310 to rotate, the filter disc 300 rotates synchronously with the screw shaft 310, and the filter disc 300 filters the slurry in the trough 200 during the rotation, the sealed cavity forms a high-pressure environment under the action of the compressed air storage tank 700, the filtrate obtained after the slurry is filtered by the filter disc 300 enters the filter cavity defined by the first punching plate body 331, the second punching plate body 332, and the sealing ring 333, and then flows into the axial hole 311 through the radial hole 312 of the screw shaft 310, and is discharged out of the sealed cavity through the axial hole 311, so as to implement high-pressure filtration. In the process of rotating the filter disc 300, when the filter disc 300 just leaves slurry, a filter cake is formed on the surface of the filter disc 300 due to the accumulation of slurry impurities, when the filter disc 300 rotates again to be submerged into the slurry, the scraper 500 fixed to the trough 200 scrapes off the filter cake formed on the surface of the filter disc 300, and the filter cake falls into the feed end of the screw discharging device 600 from the sealing cavity 220 under the guiding action of the scraper 500, so that the filter disc 300 can better perform filtering work after being submerged into the slurry.

Example two:

referring to fig. 7 in conjunction with fig. 1-6, the difference from the first embodiment is: the number of the screw shafts 310 is at least two, and for reference to the first embodiment, the number of the screw shafts 310 should be twelve. The rightmost screw shaft 310 is connected with the power device 400, the rightmost screw shaft 310 is provided with an axial hole 311, the other screw shafts 310 are provided with axial through holes 313, and adjacent screw shafts 310 are arranged in series and are in threaded connection to form a straight filtering channel; the number of the filter disc bodies 320 is the same as that of the screw shafts 310, and the filter disc bodies 320 are fixed to the screw shafts 310 one by one.

The filter also comprises a back washing system 100, the opening and closing of the back washing system 100 are controlled by a PLC system, the back washing system 100 is positioned at the axial hole 311 end of the screw shaft 310, and the water outlet end of the back washing system 100 is communicated with the axial hole 311 of the screw shaft 310. In addition to scraping the filter cake formed on the surface of the filter disc 300 with the scraper 500, the filter disc 300 may be backwashed using the backwash system 100: the PLC system is operated, the back washing system 100 is started, the water outlet end of the back washing system 100 is communicated with the axial hole 311 of the screw shaft 310, water discharged by the back washing system 100 flows through the axial hole 311 of the screw shaft 310, the radial hole 312 of the screw shaft 310, enters a filtering cavity defined by the first punching plate body 331, the second punching plate body 332 and the sealing ring 333, and then passes through the sintering net 340 outwards through the through holes 334 in the surfaces of the first punching plate body 331 and the second punching plate body 332, so that the back washing of the filter disc 300 is realized, the filtering effect is improved, and the blocking phenomenon is avoided.

In addition, for the first and second embodiments, it is to be added that the support plate may also be made of engineering plastic with high strength and corrosion resistance, and the surface of the engineering plastic is also provided with a plurality of through holes, and the structural layout and installation thereof are the same as those of the punching plate, and are not described herein again.

While the invention has been described with respect to a limited number of embodiments, those skilled in the art, having benefit of this description, will appreciate that other embodiments can be devised which do not depart from the scope of the invention as described herein.

Moreover, it should be noted that the language used in the specification has been principally selected for readability and instructional purposes, and may not have been selected to delineate or circumscribe the inventive subject matter. Accordingly, many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the appended claims. The disclosure of the present invention is intended to be illustrative, but not limiting, of the scope of the invention, which is set forth in the following claims.

Claims (10)

1. A high-pressure filter structurally comprises a feed tank filled with slurry, a filter disc arranged in the feed tank, and a power device for driving the filter disc to rotate around the axis of the filter disc; the device is characterized in that a sealing shell is arranged on the outer side of the material groove, the inner wall of the sealing shell is connected with the outer wall of the material groove to form a sealing cavity, a liquid inlet communicated with the sealing cavity is formed in the surface of the sealing shell, and an ultrasonic liquid level controller is installed at the position of the liquid inlet;

the filter disc also comprises a screw shaft and a filter disc body;

two ends of the screw shaft penetrate out of the sealing shell through the bearing block, a filter cake thickness ultrasonic detector is arranged at the end part of the screw shaft extending out of the sealing shell, an axial hole is formed in one end face of the screw shaft, a radial hole communicated with the axial hole is formed in the surface of the screw shaft, and the end part of the screw shaft, which is not provided with the axial hole, is connected with a power device;

the filter disc body is fixed on the screw shaft, the central axis of the filter disc body is coincided with the central axis of the screw shaft, the radial hole is formed in the fixed connection position of the filter disc body and the screw shaft, and filtrate flowing into the filter disc body enters the axial hole through the radial hole of the screw shaft and is discharged out of the sealed cavity;

the high-pressure filter also comprises a spiral stirring device and a compressed air storage tank; the spiral stirring device is arranged at the bottom of the feed trough and is positioned below the filter disc; the compressed air storage tank is externally arranged on the sealing shell, and the outlet end of the compressed air storage tank is communicated with the sealing cavity downwards.

2. The high pressure filter according to claim 1, further comprising a scraper and a screw discharge; the scraper is arranged on the inner wall of the material groove or the sealed shell, the scraper is positioned on the side surface of the filter disc, the screw discharging device is externally arranged on the sealed shell, and the feeding end of the screw discharging device is upwards communicated with the sealed cavity; when the power device drives the filter disc to rotate, the scraper scrapes off filter cakes on the surface of the filter disc and enables the filter cakes to fall into the feed end of the screw discharging device from the sealing cavity.

3. The high-pressure filter according to claim 1, wherein the filter disc body comprises a support plate and a sintering net tightly covering the outer surface of the support plate, the support plate is a disc structure with a hole in the middle, the support plate comprises a first support plate body, a second support plate body and a sealing ring, a plurality of through holes are formed in the surfaces of the first support plate body and the second support plate body, the first support plate body and the second support plate body are in parallel symmetry, the sealing ring is located between the first support plate body and the second support plate body, and the sealing ring is connected with the outer side edges of the first support plate body and the second support plate body in a sealing manner.

4. The high-pressure filter according to claim 3, wherein the sintered mesh comprises a protective layer, a filter layer, a flow guide layer and a base layer in sequence from outside to inside, and the pore density of the filter layer is far less than that of the protective layer, the flow guide layer and the base layer.

5. A high-pressure filter according to claim 3, characterized in that the support plate is a perforated plate or an engineering plastic.

6. A high-pressure filter according to claim 1, wherein the number of screw shafts is one and the number of filter disc bodies is 1-20.

7. The high-pressure filter according to claim 1, wherein the number of the screw shafts is at least two, the screw shafts connected with the power device are provided with axial holes, the other screw shafts are provided with axial through holes, and adjacent screw shafts are arranged in series and are in threaded connection to form a linear filtering channel; the quantity of filter disc body is the same as the quantity of screw axle, just the filter disc body with the screw axle is relative fixed one by one.

8. A high pressure filter according to claim 1, wherein the surface of the sealed housing is provided with a sight glass.

9. The high pressure filter according to claim 1, further comprising a back-washing system, wherein the back-washing system is located at the axial hole end of the screw shaft, and the water outlet end of the back-washing system is matched with the axial hole of the screw shaft.

10. A high pressure filter according to claim 1, wherein the screw shaft is connected to the seal housing by a bearing block, and a mechanical seal is installed between the bearing block and the seal housing.

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