JPS63501854A - Batch type filtration equipment for fluids - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Batch type filtration equipment for fluids Technical field The present invention relates to a fluid (liquid and gas) filtration device, and more particularly to a fluid batch-type filtration device. Regarding the location. This filtration device can also be used to separate fluids into small parts in a range of industrial applications. Used today to purify various foreign substances from liquids and gases, and each part There are challenges in distributing fluids to This problem is particularly important in the chemical industry and petroleum refineries. Purifying gas and sewage in manufacturing, ranching, public facilities, ferrous and non-ferrous industries Occurs in some cases.

Various filtration devices are already known for filtering liquids and gases; The known filtration device contains a filtration element, a supply device for the fluid to be filtered, and a discharge device for the clean fluid. It has a casing that communicates with a dispensing device and a filter cake dispensing device, respectively. ing. Depending on the type of fluid being filtered, typically endless belts, meshes, or permeable A filtration element made of a diaphragm or the like is used.

For example, a shaped filtration element is fixed to two plates, one of which is inside the bag. You can exercise to vibrate that bag periodically to remove the filter cake from the Batch-type fluid filtration devices are known (USSR Inventor's Certificate No. 109199). reference).

However, this filtration device is bulky and inefficient, and the bag used for filtration is easily soiled. Therefore, it has the disadvantage that it stops functioning, and furthermore, the mechanism that vibrates the bag for filtering is fast. The drawback is that it can break.

Furthermore, the casing accommodates a flexible filtration element in the form of a shaped container of filtration material. A fluid (liquid) filtration device whose open end is fixed to the casing known (see Soviet inventor's certificate no. 117204). The bottom of the container is connected by a rod to a lifting mechanism that flips it over to remove the key Ru.

Although this filtration device has a simple structure, the filtration device is A clogged filter cake formed on the filter surface obstructs the filtration process and therefore removes the filter cake. The container must be periodically inverted in order to The rate is very poor.

Disclosure of invention It is an object of the present invention to remove the filter cake formed and thereby the clogged filter surface. Depending on the width, a clean part of the filter element can be automatically placed in the filtration range. Flexible filtration elements ensure high efficiency, easy operation and filtration An object of the present invention is to provide a batch-type fluid filtration device that ensures reliable cleaning of surfaces. Ru.

According to the invention, this purpose includes a supply device for the fluid to be filtered, a discharge device for the cleaned fluid and It has a flexible casing that communicates with the filter cake removal device and the a filter element is fixed to said casing and is raised relative to its fixing point by means of a hoisting device. In batch-type filtration equipment for fluids that can be moved, the casing is hermetically sealed. It is divided into two chambers, upper and lower, by a flexible filtration element in the form of a hose. The upper chamber houses the hoisting device, and one end of the flexible filter hose connects to the hoisting device. the other end is inverted and secured to the inside surface of the casing so that the hose is The hose forms an annular chamber whose volume changes as the filter cake forms. It can be moved by a hoisting device, and the upper chamber communicates with a filter cake removal device. This is achieved by

The hermetic seal of the casing allows it to be used in devices that filter toxic fluids. , the upper chamber has high pressure to obtain high filtration efficiency, and the lower chamber is located below the filtration element. The chamber can be at low pressure. Adopting a flexible filtration hose reduces the amount of filter cake. Moving the hose by action to place its clean part in the filtration area , which improves filtration efficiency and extends the operating cycle of the filtration device.

Preferably, the hoisting device includes a flexible tension member connected to one end of the filter hose. It has the shape of a drum on which is wound, and has a device to adjust its torque. this According to such an arrangement structure, depending on the weight of the produced filter cake or the fluid The hose can be moved to expand the volume of its annular chamber depending on the pressure.

The flexible tension member of the hoisting device also connects the filter hose via a flexible ring element. Connected to one end for cleaning the filter hose by removing filter cake from the filter surface. In order to There is. A flexible ring element is used when the filtration hose is lifted by a hoisting device. act as a stop device to pull the open ends together when the The body, in this case the liquid, is fed from the bottom of the filtration device for filtration.

To thoroughly remove filter cake from the filtration surface of the hose, place a An inclined scraper in the form of a perforated plate is placed on both sides of the filter hose. It is advantageous if the scraper is provided with an internal passage communicating with a supply of the fluid to be filtered. It is advantageous.

In different embodiments of the filtration device according to the invention, the upper side of the flexible filtration hose A chamber is divided into two parts by a partition wall with slots, and the partition wall has slots. The housing has a sealing element on the longitudinal side of the housing, the upper part of said chamber being hermetically sealed. The hoisting device is formed as a a flexible filtration hose extending through the chamber to the lower chamber, the other end of said hose being connected to a flexible filtration hose; is connected to the inner surface of the casing, and the upper side of the bulkhead is filled with compressible fluid under pressure. It forms an annular chamber.

This arrangement allows for the standardization of key components (usually the filter hose and hoisting device); This simplifies operation and inspection of the filter. Preferably the septum is a filtration cage. A scraper connected to the extraction device of the filter and fixed to the bulkhead on both sides of the filter hose. It has a passageway extending to a lower portion of the chamber containing the chamber.

Added concentrically inside the flexible filtration hose to ensure fine filtration of the fluid has a hose with both ends of the hose inverted and in continuous contact with the inside surface of the casing. connected to form an annular chamber communicating with a cleaning fluid discharge device.

Additional hoses are installed to ensure that metal foreign objects are removed from the fluid to be filtered. Advantageously, it is made of electrically conductive material and connected to an external power source.

In different embodiments of the filtration device according to the invention, a filter is provided in the lower chamber of the casing. A perforated tubular member is concentrically disposed in communication with a supply of fluid to be evaporated.

Such an arrangement can be used for both fine and coarse filtration of fluids.

In a further embodiment of the filtration device according to the invention, the annular chamber of the filtration hose is A casing occupied by a filtration filling, the casing being placed above the filtration hose. It has auxiliary vessels communicating with the upper chamber, each of which contains a filter cake at its bottom. a device for cleaning the filtration material in the form of a flexible hose; a drive drum, one end of the flexible hose being fixed to the drive drum; The other end is inverted and fixed to the inner surface of the auxiliary container.

This arrangement is used for the process of supplying the filtration material to the annular chamber of the filtration hose and for cleaning. It makes it possible to mechanize the process of discharging filler material from the hose for the purpose of cleaning.

As mentioned above, the filtration device according to the invention can be operated easily and with high efficiency.

Brief description of the drawing 1 to 3, 5 and 7 to 10 are filtration devices according to the present invention. schematic cross-sectional views of different embodiments of; FIG. 4 is a schematic sectional view of a hoisting device of a filtration device according to the present invention; FIG. 6 is a partial plan view of the scraper of the filtration device according to the present invention; FIG. 11 is a horizontal sectional view of the container of the filtration device in FIG. 10.

BEST MODE FOR CARRYING OUT THE INVENTION In Figures 1 and 2, a batch type filtration device for fluid (liquid or gas) is shown. It consists of a gas-tight hollow casing 1 containing a flexible filter element 2. So The filter element 2 is attached to the casing part to which it is fixed by the hoisting device 3. You can move around.

The filtration element 2 determines the type of fluid (liquid or gas) to be filtered and the type of fluid to be filtered. A suitable public filter is selected depending on the degree of Made from knowledgeable materials in the shape of a hose.

The filter element 2 (hereinafter referred to as the hose) is inverted at one end and fixed to the inner surface of the casing 1. The interior of the casing 1 is divided into two chambers, particularly an upper chamber 5 and a lower chamber 6. There is.

The other end 7 of the hose 2 is fixed to the hoisting device 3. The end 4 of the hose 2 is inverted. Since it is fixed to the casing 1, an annular chamber 8 into which the fluid to be filtered is supplied is formed. This is caused by the pressure exerted by the fluid to be filtered or by the pressure of the hoisting device 3. Its volume can be changed by action and it will expand if the hose 2 is gradually lowered. and is contracted when the hose 2 is lifted. The hoisting device 3 is located inside the chamber 5. and is located above the hose 2.

The filtration device also includes a fluid supply device 9 to be filtered, a filter cake removal device 10, and a filter cake removal device 10. and a cleaning fluid discharge device 11, each of which has a non-return check. Supply of the fluid to be filtered to the chambers 5, 6 of the casing 1 via valves 12.13.14 and depending on the desired procedure for removal of the filter cake. For example, chamber 5 is continuous and communicates with the filter cake removal device 11 via a valve 14, and via a check valve 12. It communicates with a supply device 9 for the fluid to be filtered.

The chamber 6 communicates via a valve 13 with a device 10 for discharging cleaning fluid. The filtration device is fluid When used for filtration, the chamber 5 communicates with a supply 15 of cleaning fluid. desired hand The fluid to be filtered can be supplied through chamber 6 as shown in FIG. The cleaning fluid can then be introduced from a cleaning fluid supply device 15 in connection with FIG. the latter In this example, the filter cake is washed and the surface of the hose is exposed to the washing fluid under pressure. is washed during leakage through the base material. The hoisting device 3 is operated by an electric motor 17. It consists of a rotating drum 16 (see Figure 4), and the shaft of an electric motor 17 is connected to a joint 18 and through any suitable means 19 known in the art for adjusting the torque of the drum, such as a ratchet pawl or the like. is connected to the drum shaft. The ratchet pawl is activated while hose 2 is lowering. The lowering of the hose 2 is carried out by the filter cake stored in the annular chamber 8. or after the filtration device is used to filter a liquid or gas. added to hose 2 by the fluid to be filtered, such as liquid or gas in This is done using only a certain amount of pressure. The hose 2 is wrapped around the drum 16 or Alternatively, the end 7 of the hose is attached to a flexible tensioning element in the form of a cable which is wound around the drum 16. 20 (see FIGS. 1 to 3).

The tensioning element 20 of the hoisting device 3 is attached to the end 7 of the hose 2 via a flexible ring member 21. (see FIG. 3), and this ring member 21 is connected to the end of the hose 2. and is connected to the tension element 20 by a suspension line 22.

To remove the filter cake, lift hose 2 (to the position indicated by the dashed line in Figure 3). After that, a jet nozzle formed in the lower chamber 5 of the hoisting device 3 is formed from the surface of the hose 2. 23. The jet nozzle 23 generally filters the cleaning liquid. It is formed by connecting the supply device 15 of the fluid to be filtered to the pipe 24, and this For this purpose, this fluid supply device 15 is connected to a supply device 9 (not shown) for the fluid to be filtered. Connect to.

A scraper 25 is arranged below the hoisting device 3 in the chamber 5 (see Fig. 5). The scrapers 25 are located on both sides of the hose 2, and each scraper 25 cuts the shape of the perforated plate 26 into a proper shape. 6), the inner passage 2 is connected to the cleaning fluid supply device 15 by a pipe 28. It has 7.

The end 4 of the hose 2 is secured to the casing of the filtration device by suitable means such as adhesive or fastening elements. is fixed to the inner surface of the housing 1. Also, the hose 2 is as shown in Figure 3. It is connected to the annular projection 29 of the casing 1 .

The filtration device according to the present invention includes all necessary elements, mechanisms, and It is equipped with an electric control device for automatic operation.

The fluid filtration device according to the invention works as follows.

The supply device 9 (see FIGS. 1 to 3) for the fluid to be filtered is located in the chamber 5 of the casing 1. into which the fluid to be filtered is supplied.

Its chamber 5 communicates with an annular chamber 8 of the filter hose 2. The filter hose 2 has an annular chamber 8 of a given pressure exerted by the filtered fluid and filter cake collected in It is lowered by action alone and is controlled by device 19.

The fluid to be filtered flows through the filter hose 2, freeing its inner surface from dirt and solids. attached and mechanically filtered.

As the amount of filter cake attached to the filter hose 2 increases, the resistance of the filtration process increases. Ru. When the pressure in the annular chamber 8 exceeds the rotation resistance torque of the drum 16, the drum 16 Rotation brings the fresh surface of the filter hose 2 into the filter area. All about hose 2 When the filtration surface of The supply of cleaning fluid is stopped, and the cleaning fluid supply device 15 is turned on. This signal also applies to motor 1 7 and rotates the drum around which the filter hose 2 or tension element 20 is wound. It starts to turn.

The filter hose 2 is lifted and serves to remove the filter cake from the surface of the hose 2. The washing liquid forces the filter cake into its ejector 11 and the scraper 2 5 serves to remove the filter cake, and while lifting the hose 2, scratch the filter surface. Clean.

The filter hose 2 is completely lifted to its uppermost position (the position indicated by the dashed line). Then another signal is given, motor 17 is stopped, valve 12 is opened and valve 14 is opened. It closes and the cycle repeats.

In FIG. 7, the hoisting device 3 is constructed as a gas-tight hose 30. In FIG. This allows the room 5 is divided into two parts 31, 32 by a partition 33 with slots 34. There is.

A sealing element 35 is arranged on the longitudinal side of the slot 34. One end of the hose 30 The bottom part 3 of the chamber 5 is inserted through the slot 34 and attached to the end 7 of the hose 2 in any suitable manner known in the art. Connected at 2. The other end of the hose 30 is inverted and the top portion 31 of the chamber 5 The annular chamber 37 is connected to the casing 1 at the upper side of the partition wall 33, and the compression It is filled with a compressible fluid such as air. The partition wall 33 is connected to the filter via piping 39. It has a passage 38 that communicates with the key removal device 11. Passage 38 is a sealing element It communicates through 35 with the lower part 32 of the chamber 5.

A scraper 41 is arranged on both sides of the hose 2, which is held by a bracket 40. is attached to the partition wall 33 in the lower part 32 of the chamber 5. Scraper 4 1 is formed as shown in Fig. 7 or as shown in Fig. 6. It has the same structure as Bar 25.

This embodiment of the filtration device according to the invention works as follows.

The fluid enters the annular chamber 8 of the hose 2 (see FIG. 7) and is filtered there. Washing A portion of the fluid dispensed for use is passed through the scraper 41 and is removed as the hose 2 moves. Remove the filter cake from its surface. The filter cake removed in this way is passed through passage 3. 8.39 and is discharged to the removal device 11.

The hose 2 is forced against the scraper 41 by the differential pressure in the parts 31, 32 of the chamber 5. The differential pressure causes the hose 30 to move. The differential pressure is inside the hose 2 for cleaning. generated by the amount of fluid supplied to the

Hose 30 is placed in its lowest position and the air inside 37 of hose 30 is at maximum pressure. When compressed to , the supply of fluid to the hose 2 is stopped. Fluid is hose 2, the amount of fluid in the annular chamber 8 is reduced, thereby causing it to enter the chamber 37. The pressure exerted by a fluid on some air gradually decreases. Annular chamber 37 of hose 30 The pressure of the air within moves the hose 30 upward. Hose 30 is the top When the air pressure is at a minimum, the supply device 9 for the fluid to be filtered is turned on. , the fluid to be filtered is led into the annular chamber 8 of the hose 2.

In FIG. 8, the filter hose 2 has an additional concentrically arranged hose 42. This is made of materials of various thicknesses to ensure thorough filtration of the fluid. There is.

Both ends of this additional hose 42 are inverted like hose 2 and are attached to the length of casing 1. spaced along the casing 1 and continuously attached to the inner surface of the casing 1 in a suitable manner. This forms an annular chamber 43. Each such annular chamber 43 is connected to the pipe 4 4 and a check valve 45 to the filter cake removal device 11 . filtration This filtration device is best shown in FIG. 8 since the fluid to be treated is supplied under pressure. It is placed horizontally as shown in the image.

According to this arrangement structure of the flexible filtration element, the fluid to be filtered is 42 in succession.

In each successive annular chamber 43, dirt of a certain size tends to adhere to the surface of the hose. In addition, cleaning fluid is discharged from chamber 6 to device 10. of the pressure of the fluid being filtered The action and formation of the filter cake causes the drum 16 to rotate and the hose 2 and The hose 42 is stretched and moved in the longitudinal direction of the casing of the filtration device, and the filtration Prepare a new section of hose for the required amount. Hose 42 downstream of the filtration process When the motor 17 completely occupies the chamber 6, a signal is issued to drive the electric motor 17, and the driver The chamber 16 is rotated in the opposite direction and the hose is wound onto it, reducing the volume of the annular chamber 43. Do a little. The fluid is continuously filtered and the filter cake is piped from chamber 43 by a hose. 44 and is forcibly pushed out to the filter cake removal device 11.

The additional hose 42 is made of any suitable conductive material known in the art and is capable of generating a magnetic or electrostatic field. The external power supply 46 is connected to the The casing 1 is preferably made of electrically insulating material. Ru.

Charges carrying foreign metals and solids during filtration tend to stick to the filtration surface of the hose indicates that the power or magnetic field is applied while the hose is being returned to remove the filter cake. It is discharged into the device 11.

In the embodiment of the filtration device according to the invention shown in FIG. , together with the casing 1 an annular chamber 48 communicating with the device 10 for discharging the cleaning fluid. By providing a defining perforated tubular member 47 concentrically within the casing 1. can get. The chamber 6 communicates with a supply device 9 for the fluid to be filtered and is further connected to the chamber 5 and the annular chamber. 43 communicates with the filter cake removal device 11 and the cleaning fluid supply device 15. Ru.

Hose 2 and hose 42 are connected to the chamber 5 by the fact that they add cleaning fluid to the chamber 5. 6 will be moved until it is completely occupied. The fluid to be subsequently filtered is 9 at a predetermined pressure that exceeds the pressure of the cleaning fluid and enters the inside of the hose. from the center toward the inner surface of the casing (as shown by the dashed line in Figure 9). ) and flows through the hose to the area adjacent to the tube member 47. clean stream The body flows through the holes in the tube member 47 into the annular chamber 48 and then into the device 10. hose 2 and hose 42 are plugged with filter cake, they are rolled onto a drum and At the same time, it is washed by the cleaning fluid supplied by the device 15, thereby completely All filter cake is discharged into the device 11 by the wash fluid.

In the embodiment of the filtration device according to the invention shown in FIG. 10, the annular chamber of the hose 2 8 contains a filtering material such as fibrous material, sand, slap, etc. casing 1 has an auxiliary container 50 arranged as shown in FIG. It communicates with a chamber 5 formed on the upper side (see Fig. 10).

Each such container 50 is provided with a filter filler having a flexible hose made of filter material. a cleaning device and a drive drum 52 to which one end of a flexible hose 51 is fixed. have. The other end of the flexible hose 51 is inverted and inserted into the container to form a chamber 53. It is fixed to the inner surface of 50. Each container 50 has a filter cake in its bottom portion. It communicates with the discharge device 11.

Driving the drum 52 is reversible.

This embodiment of the filtration device according to the present invention is similar to the embodiments shown in FIGS. 1 to 4. It works pretty much the same way.

However, if excessive filter cake forms on top of the plug 49 during the filtration process, this The filling 49 is washed. For this purpose, the hose 2 is chained at one point by means of a hoisting device 3. The jet is raised to the uppermost position indicated by the line and the cleaning fluid or fluid to be filtered is It is supplied through the top nozzle 23. Filtering by the action of cleaning fluid and gravity The material 49 is washed off the surface of the hose 2 and into the annular chamber 53 of the flexible hose 51. Fall.

The drum 52 accommodates four fillings to be cleaned by the fluid applied from the supply device 9. The hose 51 inside the container 50 is rotated to reciprocate. Stuffing 4 9 and after the drum 52 has ceased operation, the hose 51 is in the uppermost position (shown in dashed lines). the filling 49 is inserted into the annular chamber 8 of the hose 2 for resumption of operation. be put back in.

Industrial applicability The filtration device according to the invention is particularly suitable for purifying wastewater and fecal water.

It is also used to remove foreign substances from drinking water and to remove debris from gas. It can also be applied to In either case, the device according to the invention filters highly contaminated fluids. can be used to pass

Report on international research

Claims (1)

[Claims] 1. Supply device (9) for fluid to be filtered, discharge device (10) for clean fluid and filtration casings (1) each communicating with a cake removal device (11); A flexible filtration element is fixed to said casing (1) and is driven by a hoisting device (3). In a fluid batch filtration device that can be moved relative to its fixed point, The casing (1) is hermetically sealed and a flexible filtration element in the form of a hose (2) It is divided into two upper and lower chambers (5) and (6) by the element, and the upper chamber (5) is the upper chamber. The lower end (7) of the flexible filter hose (2) accommodates the upper device (3) and the hoisting device (3). ), and the other end (4) is inverted and fixed to the inner surface of the casing (1). , the hose (2) is annular in which the volume changes as the filter cake is formed. forming a chamber (8), said hose (2) being movable by a hoisting device (3); The upper chamber (5) is characterized in that it communicates with a filter cake removal device (11). Batch type filtration equipment for fluids. 2. The hoisting device (3) has a drive drum ( 16) and a device (19) for adjusting the torque of this drum (16). characterized in that the tension member (20) is connected to the negative end (7) of the filter hose. The apparatus according to claim 1. 3. The flexible tension member (20) of the hoisting device (3) is connected to the flexible ring element (21 ) to the − end of the filter hose, and a fluid supply device (9 ) A jet nozzle (29) communicating with the jet nozzle (29) is arranged. The device according to scope 2. 4. On the underside of the hoisting device (3), on both sides of the filter hose, there is a ramp in the form of a perforated plate. An oblique scraper (25) is arranged, and this scraper (25) collects the fluid to be filtered. Claim characterized in that it comprises an inner passageway (27) communicating with the feeding device (9). The device according to item 1. 5. The upper chamber (5) of the flexible filtration hose (2) has a partition with a slot (34). It is divided into two parts (31) and (32) by a wall (33), and the partition wall (33) ) has a sealing element (35) on the longitudinal side of its slot (34), and said chamber (5) The upper part (31) of the hoist is formed as a hermetically sealed hose (30) The device (3) is housed with the -end of its hose (30) passing through a slot in the bulkhead (33). The filter hose (32) extends to the lower chamber (32) of the filter chamber (5) and is connected to the flexible filtration hose (2). , the other end of the hose (30) is connected to the inner surface of the casing (1), and the other end of the hose (30) is connected to the inner surface of the casing (1). 3) Forms an annular chamber (37) on the upper side filled with compressible fluid under pressure. 2. A device according to claim 1, characterized in that: 6. The partition (33) communicates with the filter cake removal device (11) and connects to the filter hose. A chamber containing scrapers (41) fixed to the bulkhead (33) on both sides of (2) (5) characterized in that it has a passageway (38) extending to the lower part (32); The device according to claim 5. 7. Concentrically inside the flexible filtration hose (2) is an additional hose (42), which Both ends of the hose (42) are inverted and connected continuously to the inner surface of the casing (1). characterized by forming an annular chamber (43) communicating with a cleaning fluid discharge device. The apparatus according to claim 1, wherein: 8. the additional hose (42) is made of conductive material and connected to an external power source; 8. The device according to claim 7, characterized in that: 9. The lower chamber (6) of the casing (1) communicates with the supply device (9) for the fluid to be filtered. The perforated tubular members (47) are arranged concentrically. The device according to scope 1. 10. The annular chamber (8) of the filter hose (2) is occupied by a filter plug (49) and the case The upper chamber of the casing (1) in which the thing (1) is arranged above the filter hose (2) (5), each of which has an auxiliary container (50) communicating with the bottom portion thereof. The shape of the flexible hose (51) is connected to the filter cake removal device (11) in minutes. and a drive drum (52) for cleaning the filter filler, The negative end of the base (51) is fixed to the drive drum (52), and the other end is inverted and used for compensation. Claim 1, characterized in that it is fixed to the inner surface of the auxiliary container (50). equipment.