CN105056596A - Cross-flow type candle filter - Google Patents
Cross-flow type candle filter Download PDFInfo
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- CN105056596A CN105056596A CN201510560285.9A CN201510560285A CN105056596A CN 105056596 A CN105056596 A CN 105056596A CN 201510560285 A CN201510560285 A CN 201510560285A CN 105056596 A CN105056596 A CN 105056596A
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Abstract
The invention discloses a cross-flow type candle filter and relates to a filter applied in liquid mediums. The cross-flow type candle filter mainly comprises an upper tank body part, a lower tank body part, a filter core busbar part and a residual liquid collector; the cross-flow type candle filter can be used for achieving cross-flow type filtering in a concentration process and a dry deslagging process; in the concentration process and the dry deslagging process, large filter cake chips flushed down in cross-flow type flushing in a filtering stage and large filter cake chips back-flushed down in a back-flushing stage can fast sink to the bottom of the cross-flow type candle filter; small filter cake chips flushed down still suspend in filter liquid not to be filtered in the tank body of the candle filter; the small filter cake chips and impurity particles in the filter liquid which is not filtered can be re-attached to the outer surface of a filter core to form filter cakes, so that the gap rate of the cake is enlarged, the penetrating performance of a filter cake layer is improved, and further the filtering speed and the filtering flow of the candle filter can be increased.
Description
Technical field
The present invention is a kind of cross-current type candle filter, and it relates to a kind of filter being applied to liquid medium, particularly relates to a kind of candle filter adopting cross-flow filtration mode.
Background technology
Common candle filter system is concentration technology system and dry deslagging process system according to the state demarcation of filter cake during discharge.Common concentration technology system candle filter is at filtration stage, and non-filtrate enters in candle filter tank body by feed tube, and non-filtrate enters collecting pipe through the gap of candle formula filter core, and discharges formation clear filtrate via drain pipe.The outer surface that impurity particle in non-filtrate is then intercepted at candle formula filter core forms filter cake.In the backwash stage, cleaning fluid or clear filtrate enter collecting pipe by drain pipe, and enter in candle filter tank body from the gap that the inner chamber of candle formula filter core passes outwards through candle formula filter core, the filter cake being attached to candle formula filter core outer surface is come off, block filter cake fragment sinks down into bottom candle filter fast, through accumulation after a while, open the drain valve bottom candle filter, filter cake fragment and the non-filtrate of a part are discharged by delivery pipe and are formed concentrate.
Common dry deslagging process system candle filter is at filtration stage, and non-filtrate enters in candle filter tank body by feed tube, and non-filtrate enters collecting pipe through the gap of candle formula filter core, and discharges formation clear filtrate via drain pipe.The outer surface that impurity particle in non-filtrate is then intercepted at candle formula filter core forms filter cake.At blowback discharging phase, open the drain valve bottom candle filter, emptying for the non-filtrate in candle filter tank body, open Compressed Gas control valve, Compressed Gas enters collecting pipe by drain pipe, and enter in candle filter tank body from the gap that the inner chamber of candle formula filter core passes outwards through candle formula filter core, the filter cake being attached to candle formula filter core outer surface is come off, and dry block filter cake fragment is discharged by the delivery pipe bottom candle filter.
Common concentration technology system candle filter and common dry deslagging process system candle filter are at filtration stage, all non-filtrate entered in candle filter tank body all flows to the inner chamber of candle formula filter core from the outer surface of candle formula filter core, belong to unidirectional filtration (also claiming dead-end filtration).Common concentration technology system candle filter and common dry deslagging process system candle filter are at filtration stage, filter cake thickness gathers way soon, can increase along with filter cake thickness increases filtration resistance, cause the rate of filtration of common candle filter and filtering traffic to decline.
According to cross-flow filtration mode, candle filter is at filtration stage, and the inner chamber that the non-filtrate entering a part in candle filter tank body flows to candle formula filter core from the outer surface of candle formula filter core forms clear filtrate.The non-filtrate of a part flows transversely through from the outer surface of candle formula filter core in addition, and forms closed circuit.The non-filtrate flowing transversely through candle formula filter core outer surface can produce turbulent flow and larger shear force faster at candle formula filter core outer surface, delays gathering way of filter cake thickness, improves the rate of filtration and the filtering traffic of candle filter.Due to structural factor, common candle filter can not adopt cross-flow filtration mode.
Summary of the invention
The object of the invention is to overcome the defect that common candle filter can not adopt cross-flow filtration mode, provide one can adopt cross-flow filtration mode, and be applicable to the cross-current type candle filter of concentration technology system and dry deslagging process system.Embodiment of the present invention are as follows:
The total feature of the present invention is that cross-current type candle filter is primarily of upper tank body parts, lower tank parts, filter core conflux grate part, raffinate manifold composition.Several filter core conflux grate parts are arranged in lower tank parts, and each filter core conflux grate part is provided with several candle formula filter cores, upper tank body parts are arranged on lower tank component upper ends, and raffinate manifold is arranged on lower tank lower.
Upper tank body parts are welded together by upper tank body flange, upper shell, ellipse head from bottom to up successively, and upper tank body member upper surface has feed tube, blast pipe, circulation drain pipe.
Lower tank parts from bottom to up successively by delivery pipe flange, delivery pipe, conical head, lower shell, lower tank flange welding together, lower shell is cylindrical, lower shell upper end side surface soldered has several circulation feed tubes, one end of each circulation feed tube is positioned at the radial outside of lower shell, the other end is positioned at the radially inner side of lower shell, there is flange the one end being positioned at the circulation feed tube of lower shell radial outside, and the one end being positioned at the circulation feed tube of lower shell radially inner side does not have flange.Lower shell lower end side surface soldered has several drain pipes, one end of each drain pipe is positioned at the radial outside of lower shell, the other end is positioned at the radially inner side of lower shell, there is flange the one end being positioned at the drain pipe of lower shell radial outside, and the one end being positioned at the drain pipe of lower shell radially inner side does not have flange.Lower shell side surface has a manhole.The lower shell radially inner side surface soldered on each circulation feed tube opposite has a upper fixed support, and fixed support is all provided with bolt for each.The lower shell radially inner side surface soldered on each drain pipe opposite has a lower fixed support, and each lower fixed support is all provided with bolt.
Raffinate manifold ringwise, raffinate manifold radial outside surface soldered has a raffinate pipe, the inner chamber of raffinate pipe communicates with raffinate manifold annular cavity, the lateral ends of raffinate pipe has raffinate pipe flange, after the assembling of cross-current type candle filter, form floss hole in the lower end of raffinate manifold annular cavity.
Filter core conflux grate part is primarily of circulation fluid collecting pipe parts, fluid collecting pipe parts and several candle formula filter core compositions.Candle formula filter core is cylindrical, the lower end of candle formula filter core is filter core joint, and the central through hole of filter core joint is connected with candle formula filter core inside, and filter core joint has external screw thread, filter core lock nut is arranged on filter core joint, the centre of candle formula filter core is cylindric filter medium, and filter medium is screen casing, or filter medium is filter screen, or filter medium is filter cloth, the upper end of candle formula filter core is filter core positioning end, and filter core positioning end has external screw thread, and filter core setscrew nut is arranged on filter core positioning end.
Fluid collecting pipe parts form primarily of collecting pipe fixed head, collecting pipe, collecting pipe joint and several filter core connectors.The centre of fluid collecting pipe parts is collecting pipes, collecting pipe is cylindrical, collecting pipe has several collecting pipe welding holes, and one end of collecting pipe is welded with collecting pipe fixed head, the other end of collecting pipe is welded with collecting pipe joint, and several filter core connectors are welded in collecting pipe welding hole.
Collecting pipe fixed head is cylindrical, and the centre of collecting pipe fixed head is columniform locating flange, and there is welding boss one end of collecting pipe fixed head, and welding boss inserts one end radially inner side of collecting pipe, and collecting pipe fixed head and collecting pipe are welded together.The other end of collecting pipe fixed head is connected and fixed plate, is connected and fixed on plate and has bolt of fixing plate hole.
Collecting pipe joint is cylindrical, and there is welding ring one end of collecting pipe joint, and welding ring inserts the other end radially inner side of collecting pipe, and collecting pipe joint and collecting pipe are welded together.The other end inner radial surface of collecting pipe joint has o-ring groove, and O-ring seals is arranged in o-ring groove.
Filter core connector is cylindrical, the upper end of filter core connector is branch sleeve one, the lower end of filter core connector is branch sleeve two, the centre of filter core connector is locating ring, the inner radial surface of branch sleeve one has branch sleeve internal thread, branch sleeve two inserts in the collecting pipe welding hole of collecting pipe, and filter core connector and collecting pipe are welded together.
Circulation fluid collecting pipe parts are primarily of collecting pipe fixed head, collecting pipe, collecting pipe joint and several flow guide sleeve parts composition, and flow guide sleeve parts are primarily of flow guide sleeve, guide ring composition.The centre of circulation fluid collecting pipe parts is collecting pipes, collecting pipe is cylindrical, collecting pipe has several collecting pipe welding holes, and one end of collecting pipe is welded with collecting pipe fixed head, the other end of collecting pipe is welded with collecting pipe joint, and several flow guide sleeves are welded in collecting pipe welding hole.
Flow guide sleeve is cylindrical, it is flaring flow guide sleeve cone cylinder in the middle of flow guide sleeve, the upper end of flow guide sleeve is flow guide sleeve joint, the lower end of flow guide sleeve is flow guide sleeve straight tube, there is flow guide sleeve internal thread the upper end of flow guide sleeve straight tube inner radial surface, flow guide sleeve joint inserts in the collecting pipe welding hole of collecting pipe, and flow guide sleeve and collecting pipe are welded together.
Guide ring is annular, the upper end of guide ring is the guide ring stationary magazine creel of annular, the radially-outer surface of guide ring stationary magazine creel has guide ring external screw thread, the lower end of guide ring is the guide ring base plate of annular, guide ring centre bore in the middle of guide ring base plate, guide ring base plate upper end face has several to connect gusset, connect gusset guide ring stationary magazine creel and guide ring base plate are linked together, between the lower end of guide ring stationary magazine creel and the upper end of guide ring base plate, form radial annular space, guide ring base plate radially-outer surface has several axial location muscle.
During the assembling of flow guide sleeve parts, by engaging of guide ring external screw thread and flow guide sleeve internal thread, guide ring is fixed on flow guide sleeve inner chamber.After the assembling of flow guide sleeve parts, between guide ring base plate radially-outer surface and the lower end of flow guide sleeve straight tube inner radial surface, form axial annular space.
During the assembling of filter core conflux grate part, several candle formula filter cores are fixed on candle formula filter core in the branch sleeve internal thread of filter core connector by filter core joint and filter core lock nut.The filter core positioning end of several candle formula filter cores inserts guide ring centre bore, filter core setscrew nut is arranged on filter core positioning end, and makes filter core setscrew nut be positioned at flow guide sleeve inner chamber.After the assembling of filter core conflux grate part, circulation fluid collecting pipe parts, fluid collecting pipe parts and several candle formula filter cores link together.
During the assembling of cross-current type candle filter, several filter core conflux grate parts are arranged in lower tank parts, the collecting pipe joint of circulation fluid collecting pipe parts is inserted in the one end making several circulation feed tubes be positioned at lower shell radially inner side, the collecting pipe joint of fluid collecting pipe parts is inserted in the one end making several drain pipes be positioned at lower shell radially inner side, bolt is made to pass bolt of fixing plate hole, the collecting pipe fixed head of circulation fluid collecting pipe parts is fixed on upper fixed support, the collecting pipe fixed head of fluid collecting pipe parts is fixed on lower fixed support.Upper tank body parts are arranged on lower tank component upper ends, and raffinate manifold is arranged on lower tank lower, with drain valve, raffinate manifold are fixed on the delivery pipe flange of lower tank lower.
The main technique cyclic process of cross-current type candle filter in concentration technology system is: filtration stage, backwash stage, discharge phase.
The main technique cyclic process of cross-current type candle filter in dry deslagging process system is: filtration stage, backwash stage, blowback discharging phase.
The filtration stage process of cross-current type candle filter in concentration technology system and dry deslagging process system is:
Non-filtrate enters in candle filter tank body through liquid feed valve by feed tube, the gap that non-filtrate is each passed through several candle formula filter cores enters candle formula filter core inside, non-filtrate flows in the collecting pipe of fluid collecting pipe parts via the central through hole of filter core joint, non-filtrate discharges candle filter tank body through collecting pipe joint by drain pipe, non-filtrate is again respectively through several technology controlling and process valves, and non-filtrate flows to upstream device from liquid valve and forms clear filtrate.The outer surface that impurity particle in non-filtrate is then intercepted at candle formula filter core forms filter cake.
Cross-current type candle filter is while carrying out filtration work, open and close several cross-flow control valves successively, the non-filtrate of a part in candle filter tank body enters circulation fluid pipe and forms cross-flow circulation fluid, cross-flow circulation fluid enters in cross-flow water circulating pump, cross-flow water circulating pump promotes cross-flow circulation fluid respectively through several cross-flow control valves opened and closed successively, cross-flow circulation fluid enters the collecting pipe of circulation fluid collecting pipe parts of each filter core conflux grate part from several circulation feed tubes respectively, cross-flow circulation fluid is respectively through several flow guide sleeve parts, cross-flow circulation fluid is respectively through radial annular space and axial annular space, cross-flow circulation fluid enters in candle filter tank body by axial annular space, form a closed circuit, cross-flow circulation fluid axially flows at candle formula filter core radially-outer surface, cross-flow circulation fluid produces turbulent flow and larger shear force faster at candle formula filter core radially-outer surface, cross-flow cleaning is carried out to the filter cake being attached to candle formula filter core outer surface, delay gathering way of filter cake thickness, improve the rate of filtration and the filtering traffic of candle filter.
The backwash phase process of cross-current type candle filter in concentration technology system and dry deslagging process system is:
Cross-current type candle filter is after carrying out a period of time filtration work, and candle formula filter core radially-outer surface still can produce filter cake, and the backwash stage of cross-current type candle filter can remove this filter cake.Back flush adopts special cleaning fluid, or back flush adopts the clear filtrate being delivered to upstream device.Open residual-gas valve and backwash valve, cleaning fluid enters backwash pump, backwash pump promotes cleaning fluid through backwash valve, the technology controlling and process valve that cleaning fluid opens and closes successively respectively through several, cleaning fluid enters the collecting pipe of fluid collecting pipe parts of each filter core conflux grate part from several drain pipes respectively, the gap that cleaning fluid passes outwards through candle formula filter core from the inner chamber of candle formula filter core enters in candle filter tank body, back flush is carried out to the filter cake being attached to candle formula filter core outer surface, the filter cake being attached to candle formula filter core outer surface is come off, block filter cake fragment sinks down into bottom cross-current type candle filter fast, filter cake fragment and the non-filtrate of a part are discharged candle filter tank body through residual-gas valve and are formed raffinate.
The discharge phase process of cross-current type candle filter in concentration technology system is:
Cross-current type candle filter, after carrying out a period of time filtration work, have accumulated the filter cake fragment of some bottom cross-current type candle filter, open drain valve, and filter cake fragment and the non-filtrate of a part are discharged candle filter tank body through drain valve and formed concentrate.
The blowback discharging phase process of cross-current type candle filter in dry deslagging process system is:
The filtration stage of cross-current type candle filter in dry deslagging process system, in candle filter tank body, in non-filtrate, the concentration of impurity particle increases gradually, now closing cross-flow water circulating pump and several cross-flow control valves, stopping the filter cake to being attached to candle formula filter core outer surface to carry out cross-flow cleaning.Liquid feed valve, several technology controlling and process valves and liquid valve are still opened, non-filtrate continuation enters in candle filter tank body, and the gap continuing across several candle formula filter cores enters candle formula filter core inside, in candle filter tank body, in non-filtrate, impurity particle is attached to rapidly candle formula filter core outer surface and forms filter cake, closes liquid feed valve, several technology controlling and process valve and liquid valves afterwards.Open air bleeding valve and residual-gas valve, the non-filtrate in candle filter tank body is discharged candle filter tank body through residual-gas valve and is formed raffinate.After non-filtrate in emptying candle filter tank body, close air bleeding valve and residual-gas valve, open drain valve and Compressed Gas control valve, open and close several technology controlling and process valves successively, Compressed Gas from source of the gas flows out from air accumulator, Compressed Gas is through Compressed Gas control valve, the technology controlling and process valve that Compressed Gas opens and closes successively respectively through several, Compressed Gas enters the collecting pipe of fluid collecting pipe parts of each filter core conflux grate part from several drain pipes respectively, the gap that Compressed Gas passes outwards through candle formula filter core from the inner chamber of candle formula filter core enters in candle filter tank body, blowback discharging is carried out to the filter cake being attached to candle formula filter core outer surface, the filter cake being attached to candle formula filter core outer surface is come off, dry block filter cake fragment is through raffinate manifold and drain valve, discharged by the floss hole bottom cross-current type candle filter.
Cross-current type candle filter can realize cross-flow filtration mode in concentration technology system and dry deslagging process system.And in concentration technology system and dry deslagging process system, the bulk filter cake fragment got off is washed away when the cross-flow of filtration stage is cleaned, and during the back flush of backwash stage, wash away the bulk filter cake fragment got off, can sink down into fast bottom cross-current type candle filter, wash away the fritter filter cake fragment got off still is suspended in the non-filtrate in candle filter tank body simultaneously, this fritter filter cake fragment is re-attached to candle formula filter core outer surface and forms filter cake together with the impurity particle in non-filtrate, the voidage of cake layer is increased, improve the permeance property of cake layer, thus improve the rate of filtration and the filtering traffic of candle filter.
Accompanying drawing explanation
Figure of description is structure chart and the schematic diagram of cross-current type candle filter.Wherein Fig. 1 is the axonometric drawing of cross-current type candle filter.Fig. 2 is the isometric cutaway view of cross-current type candle filter.Fig. 3 is the axonometric drawing of upper tank body parts.Fig. 4 is the axonometric drawing of candle formula filter core.Fig. 5 is the axonometric drawing of lower tank parts.Fig. 6 is the isometric cutaway view of lower tank parts.Fig. 7 is the axonometric drawing of filter core conflux grate part.Fig. 8 is the isometric cutaway view of filter core conflux grate part.Fig. 9 is the isometric cutaway view of circulation fluid collecting pipe parts.Figure 10 is the isometric cutaway view of fluid collecting pipe parts.Figure 11 is the isometric cutaway view of flow guide sleeve parts.Figure 12 is the isometric cutaway view of flow guide sleeve.Figure 13 is the isometric cutaway view of guide ring.Figure 14 is the isometric cutaway view of filter core connector.Figure 15 is the isometric cutaway view of collecting pipe joint.Figure 16 is the axonometric drawing of collecting pipe fixed head.Figure 17 is the axonometric drawing of collecting pipe.Figure 18 is the axonometric drawing of raffinate manifold.Figure 19 is the schematic diagram of cross-current type candle filter concentration technology system.Figure 20 is the schematic diagram of the dry deslagging process system of cross-current type candle filter.
Figure acceptance of the bid is marked with floss hole 1, raffinate manifold 2, delivery pipe flange 3, delivery pipe 4, conical head 5, bolt 6, lower fixed support 7, filter core conflux grate part 8, candle formula filter core 9, lower shell 10, filter core setscrew nut 11, upper fixed support 12, lower tank flange 13, upper tank body flange 14, upper shell 15, ellipse head 16, feed tube 17, blast pipe 18, circulation drain pipe 19, collecting pipe fixed head 20, collecting pipe 21, collecting pipe joint 22, circulation feed tube 23, flow guide sleeve 24, guide ring 25, filter core lock nut 26, filter core connector 27, drain pipe 28, raffinate pipe 29, manhole 30, O-ring seals 31, bolt of fixing plate hole 32, axial annular space 33, radial annular space 34, flow guide sleeve joint 35, flow guide sleeve cone cylinder 36, flow guide sleeve internal thread 37, flow guide sleeve straight tube 38, guide ring external screw thread 39, axial location muscle 40, guide ring stationary magazine creel 41, guide ring base plate 42, connect gusset 43, guide ring centre bore 44, branch sleeve 1, branch sleeve 2 46, locating ring 47, branch sleeve internal thread 48, welding ring 49, o-ring groove 50, be connected and fixed plate 51, welding boss 52, collecting pipe welding hole 53, raffinate pipe flange 54, candle filter tank body 55, drain valve 56, residual-gas valve 57, raffinate 58, Compressed Gas control valve 59, air accumulator 60, Compressed Gas 61, technology controlling and process valve 62, liquid valve 63, clear filtrate 64, backwash valve 65, backwash pump 66, cleaning fluid 67, cross-flow control valve 68, cross-flow water circulating pump 69, cross-flow circulation fluid 70, air bleeding valve 71, liquid feed valve 72, non-filtrate 73, locating flange 74, filter core joint 75, filter core positioning end 76.
Detailed description of the invention
Below in conjunction with accompanying drawing, further describing is done to the present invention.
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, cross-current type candle filter forms primarily of upper tank body parts, lower tank parts, filter core conflux grate part 8, raffinate manifold 2.Several filter core conflux grate parts 8 are arranged in lower tank parts, and each filter core conflux grate part 8 is provided with several candle formula filter cores 9, upper tank body parts are arranged on lower tank component upper ends, and raffinate manifold 2 is arranged on lower tank lower.
Upper tank body parts are welded together by upper tank body flange 14, upper shell 15, ellipse head 16 from bottom to up successively, and upper tank body member upper surface has feed tube 17, blast pipe 18, circulation drain pipe 19.
Lower tank parts are welded together by delivery pipe flange 3, delivery pipe 4, conical head 5, lower shell 10, lower tank flange 13 from bottom to up successively, lower shell 10 is cylindrical, lower shell 10 upper end side surface soldered has several circulation feed tubes 23, one end of each circulation feed tube 23 is positioned at the radial outside of lower shell 10, the other end is positioned at the radially inner side of lower shell 10, there is flange the one end being positioned at the circulation feed tube 23 of lower shell 10 radial outside, and the one end being positioned at the circulation feed tube 23 of lower shell 10 radially inner side does not have flange.Lower shell 10 lower end side surface soldered has several drain pipes 28, one end of each drain pipe 28 is positioned at the radial outside of lower shell 10, the other end is positioned at the radially inner side of lower shell 10, there is flange the one end being positioned at the drain pipe 28 of lower shell 10 radial outside, and the one end being positioned at the drain pipe 28 of lower shell 10 radially inner side does not have flange.Lower shell 10 side surface has a manhole 30.The lower shell 10 radially inner side surface soldered on each circulation feed tube 23 opposite has a upper fixed support 12, and fixed support 12 is all provided with bolt 6 for each.The lower shell 10 radially inner side surface soldered on each drain pipe 28 opposite has a lower fixed support 7, and each lower fixed support 7 is all provided with bolt 6.
With reference to Fig. 1, Fig. 2 and Figure 18, raffinate manifold 2 ringwise, raffinate manifold 2 radial outside surface soldered has a raffinate pipe 29, the inner chamber of raffinate pipe 29 communicates with raffinate manifold 2 annular cavity, the lateral ends of raffinate pipe 29 has raffinate pipe flange 54, after the assembling of cross-current type candle filter, form floss hole 1 in the lower end of raffinate manifold 2 annular cavity.
With reference to Fig. 7 to Figure 17, filter core conflux grate part 8 forms primarily of circulation fluid collecting pipe parts, fluid collecting pipe parts and several candle formula filter cores 9.Candle formula filter core 9 is cylindrical, the lower end of candle formula filter core 9 is filter core joints 75, the central through hole of filter core joint 75 is connected with candle formula filter core 9 inside, filter core joint 75 has external screw thread, filter core lock nut 26 is arranged on filter core joint 75, the centre of candle formula filter core 9 is cylindric filter mediums, filter medium is screen casing, or filter medium is filter screen, or filter medium is filter cloth, the upper end of candle formula filter core 9 is filter core positioning ends 76, and filter core positioning end 76 has external screw thread, and filter core setscrew nut 11 is arranged on filter core positioning end 76.
Fluid collecting pipe parts form primarily of collecting pipe fixed head 20, collecting pipe 21, collecting pipe joint 22 and several filter core connectors 27.The centre of fluid collecting pipe parts is collecting pipes 21, collecting pipe 21 is cylindrical, collecting pipe 21 there are several collecting pipe welding holes 53, one end of collecting pipe 21 is welded with collecting pipe fixed head 20, the other end of collecting pipe 21 is welded with collecting pipe joint 22, and several filter core connectors 27 are welded in collecting pipe welding hole 53.
Collecting pipe fixed head 20 is cylindrical, the centre of collecting pipe fixed head 20 is columniform locating flanges 74, there is welding boss 52 one end of collecting pipe fixed head 20, and welding boss 52 inserts one end radially inner side of collecting pipe 21, and collecting pipe fixed head 20 and collecting pipe 21 are welded together.The other end of collecting pipe fixed head 20 is connected and fixed plate 51, is connected and fixed on plate 51 and has bolt of fixing plate hole 32.
Collecting pipe joint 22 is cylindrical, and there is welding ring 49 one end of collecting pipe joint 22, and welding ring 49 inserts the other end radially inner side of collecting pipe 21, and collecting pipe joint 22 and collecting pipe 21 are welded together.The other end inner radial surface of collecting pipe joint 22 has o-ring groove 50, and O-ring seals 31 is arranged in o-ring groove 50.
Filter core connector 27 is cylindrical, the upper end of filter core connector 27 is branch sleeves 1, the lower end of filter core connector 27 is branch sleeves 2 46, the centre of filter core connector 27 is locating rings 47, the inner radial surface of branch sleeve 1 has branch sleeve internal thread 48, branch sleeve 2 46 inserts in the collecting pipe welding hole 53 of collecting pipe 21, and filter core connector 27 and collecting pipe 21 are welded together.
Circulation fluid collecting pipe parts are primarily of collecting pipe fixed head 20, collecting pipe 21, collecting pipe joint 22 and several flow guide sleeve parts composition, and flow guide sleeve parts form primarily of flow guide sleeve 24, guide ring 25.The centre of circulation fluid collecting pipe parts is collecting pipes 21, collecting pipe 21 is cylindrical, collecting pipe 21 there are several collecting pipe welding holes 53, one end of collecting pipe 21 is welded with collecting pipe fixed head 20, the other end of collecting pipe 21 is welded with collecting pipe joint 22, and several flow guide sleeves 24 are welded in collecting pipe welding hole 53.
Flow guide sleeve 24 is cylindrical, it is flaring flow guide sleeve cone cylinder 36 in the middle of flow guide sleeve 24, the upper end of flow guide sleeve 24 is flow guide sleeve joints 35, the lower end of flow guide sleeve 24 is flow guide sleeve straight tubes 38, there is flow guide sleeve internal thread 37 upper end of flow guide sleeve straight tube 38 inner radial surface, flow guide sleeve joint 35 inserts in the collecting pipe welding hole 53 of collecting pipe 21, and flow guide sleeve 24 and collecting pipe 21 are welded together.
Guide ring 25 is in annular, the upper end of guide ring 25 is guide ring stationary magazine creels 41 of annular, the radially-outer surface of guide ring stationary magazine creel 41 has guide ring external screw thread 39, the lower end of guide ring 25 is guide ring base plates 42 of annular, guide ring centre bore 44 in the middle of guide ring base plate 42, guide ring base plate 42 upper end face has several to connect gusset 43, connect gusset 43 guide ring stationary magazine creel 41 and guide ring base plate 42 are linked together, radial annular space 34 is formed between the lower end of guide ring stationary magazine creel 41 and the upper end of guide ring base plate 42, guide ring base plate 42 radially-outer surface has several axial location muscle 40.
During the assembling of flow guide sleeve parts, by engaging of guide ring external screw thread 39 and flow guide sleeve internal thread 37, guide ring 25 is fixed on flow guide sleeve 24 inner chamber.After the assembling of flow guide sleeve parts, between guide ring base plate 42 radially-outer surface and the lower end of flow guide sleeve straight tube 38 inner radial surface, form axial annular space 33.
When filter core conflux grate part 8 assembles, several candle formula filter cores 9 are fixed on candle formula filter core 9 in the branch sleeve internal thread 48 of filter core connector 27 by filter core joint 75 and filter core lock nut 26.The filter core positioning end 76 of several candle formula filter cores 9 inserts guide ring centre bore 44, filter core setscrew nut 11 is arranged on filter core positioning end 76, and makes filter core setscrew nut 11 be positioned at flow guide sleeve 24 inner chamber.After filter core conflux grate part 8 assembles, circulation fluid collecting pipe parts, fluid collecting pipe parts and several candle formula filter cores 9 link together.
With reference to Fig. 2, during the assembling of cross-current type candle filter, several filter core conflux grate parts 8 are arranged in lower tank parts, the collecting pipe joint 22 of circulation fluid collecting pipe parts is inserted in the one end making several circulation feed tubes 23 be positioned at lower shell 10 radially inner side, the collecting pipe joint 22 of fluid collecting pipe parts is inserted in the one end making several drain pipes 28 be positioned at lower shell 10 radially inner side, make bolt 6 through bolt of fixing plate hole 32, the collecting pipe fixed head 20 of circulation fluid collecting pipe parts is fixed on upper fixed support 12, the collecting pipe fixed head 20 of fluid collecting pipe parts is fixed on lower fixed support 7.Upper tank body parts are arranged on lower tank component upper ends, and raffinate manifold 2 is arranged on lower tank lower, with drain valve 56, raffinate manifold 2 are fixed on the delivery pipe flange 3 of lower tank lower.
With reference to Figure 19 and Figure 20, the main technique cyclic process of cross-current type candle filter in concentration technology system is: filtration stage, backwash stage, discharge phase.
The main technique cyclic process of cross-current type candle filter in dry deslagging process system is: filtration stage, backwash stage, blowback discharging phase.
The filtration stage process of cross-current type candle filter in concentration technology system and dry deslagging process system is:
Non-filtrate 73 enters in candle filter tank body 55 through liquid feed valve 72 by feed tube 17, the gap that non-filtrate 73 is each passed through several candle formula filter cores 9 enters candle formula filter core 9 inside, non-filtrate 73 flows in the collecting pipe 21 of fluid collecting pipe parts via the central through hole of filter core joint 75, non-filtrate 73 discharges candle filter tank body 55 through collecting pipe joint 22 by drain pipe 28, non-filtrate 73 is again respectively through several technology controlling and process valves 62, and non-filtrate 73 flows to upstream device from liquid valve 63 and forms clear filtrate 64.The outer surface that impurity particle in non-filtrate 73 is then intercepted at candle formula filter core 9 forms filter cake.
Cross-current type candle filter is while carrying out filtration work, open and close several cross-flow control valves 68 successively, the non-filtrate 73 of a part in candle filter tank body 55 enters circulation drain pipe 19 and forms cross-flow circulation fluid 70, cross-flow circulation fluid 70 enters in cross-flow water circulating pump 69, cross-flow water circulating pump 69 promotes cross-flow circulation fluid 70 respectively through several cross-flow control valves 68 opened and closed successively, cross-flow circulation fluid 70 enters the collecting pipe 21 of circulation fluid collecting pipe parts of each filter core conflux grate part 8 from several circulation feed tubes 23 respectively, cross-flow circulation fluid 70 is respectively through several flow guide sleeve parts, cross-flow circulation fluid 70 is respectively through radial annular space 34 and axial annular space 33, cross-flow circulation fluid 70 enters in candle filter tank body 55 by axial annular space 33, form a closed circuit, cross-flow circulation fluid 70 axially flows at candle formula filter core 9 radially-outer surface, cross-flow circulation fluid 70 produces turbulent flow and larger shear force faster at candle formula filter core 9 radially-outer surface, cross-flow cleaning is carried out to the filter cake being attached to candle formula filter core 9 outer surface, delay gathering way of filter cake thickness, improve the rate of filtration and the filtering traffic of candle filter.
The backwash phase process of cross-current type candle filter in concentration technology system and dry deslagging process system is:
Cross-current type candle filter is after carrying out a period of time filtration work, and candle formula filter core 9 radially-outer surface still can produce filter cake, and the backwash stage of cross-current type candle filter can remove this filter cake.Back flush adopts special cleaning fluid 67, or back flush adopts the clear filtrate 64 being delivered to upstream device.Open residual-gas valve 57 and backwash valve 65, cleaning fluid 67 enters backwash pump 66, backwash pump 66 promotes cleaning fluid 67 through backwash valve 65, the technology controlling and process valve 62 that cleaning fluid 67 opens and closes successively respectively through several, cleaning fluid 67 enters the collecting pipe 21 of fluid collecting pipe parts of each filter core conflux grate part 8 from several drain pipes 28 respectively, the gap that cleaning fluid 67 passes outwards through candle formula filter core 9 from the inner chamber of candle formula filter core 9 enters in candle filter tank body 55, back flush is carried out to the filter cake being attached to candle formula filter core 9 outer surface, the filter cake being attached to candle formula filter core 9 outer surface is come off, block filter cake fragment sinks down into bottom cross-current type candle filter fast, filter cake fragment and the non-filtrate 73 of a part are discharged candle filter tank body 55 through residual-gas valve 57 and are formed raffinate 58.
The discharge phase process of cross-current type candle filter in concentration technology system is:
Cross-current type candle filter is after carrying out a period of time filtration work, the filter cake fragment of some is have accumulated bottom cross-current type candle filter, open drain valve 56, filter cake fragment and the non-filtrate 73 of a part are discharged candle filter tank body 55 through drain valve 56 and are formed concentrate.
The blowback discharging phase process of cross-current type candle filter in dry deslagging process system is:
The filtration stage of cross-current type candle filter in dry deslagging process system, in candle filter tank body 55, in non-filtrate 73, the concentration of impurity particle increases gradually, now closing cross-flow water circulating pump 69 and several cross-flow control valves 68, stopping the filter cake to being attached to candle formula filter core 9 outer surface to carry out cross-flow cleaning.Liquid feed valve 72, several technology controlling and process valves 62 and liquid valve 63 are still opened, non-filtrate 73 continues to enter in candle filter tank body 55, and the gap continuing across several candle formula filter cores 9 enters candle formula filter core 9 inside, in candle filter tank body 55, in non-filtrate 73, impurity particle is attached to rapidly candle formula filter core 9 outer surface and forms filter cake, closes liquid feed valve 72, several technology controlling and process valves 62 and liquid valve 63 afterwards.Open air bleeding valve 71 and residual-gas valve 57, the non-filtrate 73 in candle filter tank body 55 is discharged candle filter tank body 55 through residual-gas valve 57 and is formed raffinate 58.After non-filtrate 73 in emptying candle filter tank body 55, close air bleeding valve 71 and residual-gas valve 57, open drain valve 56 and Compressed Gas control valve 59, open and close several technology controlling and process valves 62 successively, Compressed Gas 61 from source of the gas flows out from air accumulator 60, Compressed Gas 61 is through Compressed Gas control valve 59, the technology controlling and process valve 62 that Compressed Gas 61 opens and closes successively respectively through several, Compressed Gas 61 enters the collecting pipe 21 of fluid collecting pipe parts of each filter core conflux grate part 8 from several drain pipes 28 respectively, the gap that Compressed Gas 61 passes outwards through candle formula filter core 9 from the inner chamber of candle formula filter core 9 enters in candle filter tank body 55, blowback discharging is carried out to the filter cake being attached to candle formula filter core 9 outer surface, the filter cake being attached to candle formula filter core 9 outer surface is come off, dry block filter cake fragment is through raffinate manifold 2 and drain valve 56, discharged by the floss hole 1 bottom cross-current type candle filter.
Cross-current type candle filter can realize cross-flow filtration mode in concentration technology system and dry deslagging process system.And in concentration technology system and dry deslagging process system, the bulk filter cake fragment got off is washed away when the cross-flow of filtration stage is cleaned, and during the back flush of backwash stage, wash away the bulk filter cake fragment got off, can sink down into fast bottom cross-current type candle filter, wash away the fritter filter cake fragment got off still is suspended in the non-filtrate 73 in candle filter tank body 55 simultaneously, this fritter filter cake fragment is re-attached to candle formula filter core 9 outer surface and forms filter cake together with the impurity particle in non-filtrate 73, the voidage of cake layer is increased, improve the permeance property of cake layer, thus improve the rate of filtration and the filtering traffic of candle filter.
Claims (2)
1. a cross-current type candle filter, is characterized in that cross-current type candle filter is primarily of upper tank body parts, lower tank parts, filter core conflux grate part (8), raffinate manifold (2) composition; Several filter core conflux grate parts (8) are arranged in lower tank parts, each filter core conflux grate part (8) is provided with several candles formula filter core (9), upper tank body parts are arranged on lower tank component upper ends, and raffinate manifold (2) is arranged on lower tank lower;
Upper tank body parts are welded together by upper tank body flange (14), upper shell (15), ellipse head (16) from bottom to up successively, and upper tank body member upper surface has feed tube (17), blast pipe (18), circulation drain pipe (19);
Lower tank parts are from bottom to up successively by delivery pipe flange (3), delivery pipe (4), conical head (5), lower shell (10), lower tank flange (13) welds together, lower shell (10) is cylindrical, lower shell (10) upper end side surface soldered has several circulation feed tubes (23), one end of each circulation feed tube (23) is positioned at the radial outside of lower shell (10), the other end is positioned at the radially inner side of lower shell (10), there is flange the one end being positioned at the circulation feed tube (23) of lower shell (10) radial outside, the one end being positioned at the circulation feed tube (23) of lower shell (10) radially inner side does not have flange, lower shell (10) lower end side surface soldered has several drain pipes (28), one end of each drain pipe (28) is positioned at the radial outside of lower shell (10), the other end is positioned at the radially inner side of lower shell (10), there is flange the one end being positioned at the drain pipe (28) of lower shell (10) radial outside, and the one end being positioned at the drain pipe (28) of lower shell (10) radially inner side does not have flange, lower shell (10) side surface has a manhole (30), lower shell (10) the radially inner side surface soldered on each circulation feed tube (23) opposite has a upper fixed support (12), and fixed support (12) is all provided with bolt (6) for each, lower shell (10) the radially inner side surface soldered on each drain pipe (28) opposite has a lower fixed support (7), and each lower fixed support (7) is all provided with bolt (6),
Raffinate manifold (2) ringwise, raffinate manifold (2) radial outside surface soldered has a raffinate pipe (29), the inner chamber of raffinate pipe (29) communicates with raffinate manifold (2) annular cavity, the lateral ends of raffinate pipe (29) has raffinate pipe flange (54), after the assembling of cross-current type candle filter, form floss hole (1) in the lower end of raffinate manifold (2) annular cavity;
Filter core conflux grate part (8) is primarily of circulation fluid collecting pipe parts, fluid collecting pipe parts and several candle formula filter core (9) compositions, candle formula filter core (9) is cylindrical, the lower end of candle formula filter core (9) is filter core joint (75), the central through hole of filter core joint (75) is connected with candle formula filter core (9) inside, filter core joint (75) has external screw thread, filter core lock nut (26) is arranged on filter core joint (75), the centre of candle formula filter core (9) is cylindric filter medium, filter medium is screen casing, or filter medium is filter screen, or filter medium is filter cloth, the upper end of candle formula filter core (9) is filter core positioning end (76), filter core positioning end (76) has external screw thread, filter core setscrew nut (11) is arranged on filter core positioning end (76),
Fluid collecting pipe parts form primarily of collecting pipe fixed head (20), collecting pipe (21), collecting pipe joint (22) and several filter core connectors (27); The centre of fluid collecting pipe parts is collecting pipe (21), collecting pipe (21) is cylindrical, collecting pipe (21) there are several collecting pipe welding holes (53), one end of collecting pipe (21) is welded with collecting pipe fixed head (20), the other end of collecting pipe (21) is welded with collecting pipe joint (22), and several filter core connectors (27) are welded in collecting pipe welding hole (53);
Collecting pipe fixed head (20) is cylindrical, the centre of collecting pipe fixed head (20) is columniform locating flange (74), there is welding boss (52) one end of collecting pipe fixed head (20), one end radially inner side of collecting pipe (21) is inserted in welding boss (52), and collecting pipe fixed head (20) and collecting pipe (21) are welded together; The other end of collecting pipe fixed head (20) is connected and fixed plate (51), is connected and fixed on plate (51) and has bolt of fixing plate hole (32);
Collecting pipe joint (22) is cylindrical, there is welding ring (49) one end of collecting pipe joint (22), welding ring (49) inserts the other end radially inner side of collecting pipe (21), and collecting pipe joint (22) and collecting pipe (21) are welded together; The other end inner radial surface of collecting pipe joint (22) has o-ring groove (50), and O-ring seals (31) is arranged in o-ring groove (50);
Filter core connector (27) is cylindrical, the upper end of filter core connector (27) is branch sleeve one (45), the lower end of filter core connector (27) is branch sleeve two (46), the centre of filter core connector (27) is locating ring (47), the inner radial surface of branch sleeve one (45) has branch sleeve internal thread (48), branch sleeve two (46) inserts in the collecting pipe welding hole (53) of collecting pipe (21), and filter core connector (27) and collecting pipe (21) are welded together;
Circulation fluid collecting pipe parts are primarily of collecting pipe fixed head (20), collecting pipe (21), collecting pipe joint (22) and several flow guide sleeve parts composition, and flow guide sleeve parts are primarily of flow guide sleeve (24), guide ring (25) composition; The centre of circulation fluid collecting pipe parts is collecting pipe (21), collecting pipe (21) is cylindrical, collecting pipe (21) there are several collecting pipe welding holes (53), one end of collecting pipe (21) is welded with collecting pipe fixed head (20), the other end of collecting pipe (21) is welded with collecting pipe joint (22), and several flow guide sleeves (24) are welded in collecting pipe welding hole (53);
Flow guide sleeve (24) is cylindrical, it is flaring flow guide sleeve cone cylinder (36) in the middle of flow guide sleeve (24), the upper end of flow guide sleeve (24) is flow guide sleeve joint (35), the lower end of flow guide sleeve (24) is flow guide sleeve straight tube (38), there is flow guide sleeve internal thread (37) upper end of flow guide sleeve straight tube (38) inner radial surface, flow guide sleeve joint (35) inserts in the collecting pipe welding hole (53) of collecting pipe (21), and flow guide sleeve (24) and collecting pipe (21) are welded together;
Guide ring (25) is in annular, the upper end of guide ring (25) is the guide ring stationary magazine creel (41) of annular, the radially-outer surface of guide ring stationary magazine creel (41) has guide ring external screw thread (39), the lower end of guide ring (25) is the guide ring base plate (42) of annular, guide ring centre bore (44) in the middle of guide ring base plate (42), guide ring base plate (42) upper end face has several to connect gusset (43), connect gusset (43) guide ring stationary magazine creel (41) and guide ring base plate (42) are linked together, radial annular space (34) is formed between the lower end of guide ring stationary magazine creel (41) and the upper end of guide ring base plate (42), guide ring base plate (42) radially-outer surface has several axial location muscle (40),
During the assembling of flow guide sleeve parts, by engaging of guide ring external screw thread (39) and flow guide sleeve internal thread (37), guide ring (25) is fixed on flow guide sleeve (24) inner chamber; After the assembling of flow guide sleeve parts, between guide ring base plate (42) radially-outer surface and the lower end of flow guide sleeve straight tube (38) inner radial surface, form axial annular space (33);
During filter core conflux grate part (8) assembling, several candles formula filter core (9) are fixed on candle formula filter core (9) in the branch sleeve internal thread (48) of filter core connector (27) by filter core joint (75) and filter core lock nut (26); The filter core positioning end (76) of several candles formula filter core (9) inserts guide ring centre bore (44), filter core setscrew nut (11) is arranged on filter core positioning end (76), and makes filter core setscrew nut (11) be positioned at flow guide sleeve (24) inner chamber; After filter core conflux grate part (8) assembling, circulation fluid collecting pipe parts, fluid collecting pipe parts and several candles formula filter core (9) link together;
During the assembling of cross-current type candle filter, several filter core conflux grate parts (8) are arranged in lower tank parts, the collecting pipe joint (22) of circulation fluid collecting pipe parts is inserted in the one end making several circulation feed tubes (23) be positioned at lower shell (10) radially inner side, the collecting pipe joint (22) of fluid collecting pipe parts is inserted in the one end making several drain pipes (28) be positioned at lower shell (10) radially inner side, make bolt (6) through bolt of fixing plate hole (32), the collecting pipe fixed head (20) of circulation fluid collecting pipe parts is fixed on upper fixed support (12), the collecting pipe fixed head (20) of fluid collecting pipe parts is fixed on lower fixed support (7), upper tank body parts are arranged on lower tank component upper ends, raffinate manifold (2) is arranged on lower tank lower, with drain valve (56), raffinate manifold (2) is fixed on the delivery pipe flange (3) of lower tank lower.
2. a kind of cross-current type candle filter according to claim 1, is characterized in that the main technique cyclic process of cross-current type candle filter in concentration technology system is: filtration stage, backwash stage, discharge phase;
The main technique cyclic process of cross-current type candle filter in dry deslagging process system is: filtration stage, backwash stage, blowback discharging phase;
The filtration stage process of cross-current type candle filter in concentration technology system and dry deslagging process system is:
Non-filtrate (73) enters in candle filter tank body (55) through liquid feed valve (72) by feed tube (17), the gap that non-filtrate (73) is each passed through several candles formula filter core (9) enters candle formula filter core (9) inside, non-filtrate (73) flows in the collecting pipe (21) of fluid collecting pipe parts via the central through hole of filter core joint (75), non-filtrate (73) discharges candle filter tank body (55) through collecting pipe joint (22) by drain pipe (28), non-filtrate (73) is again respectively through several technology controlling and process valves (62), non-filtrate (73) flows to upstream device from liquid valve (63) and forms clear filtrate (64), the outer surface that impurity particle in non-filtrate (73) is then intercepted at candle formula filter core (9) forms filter cake,
Cross-current type candle filter is while carrying out filtration work, open and close several cross-flow control valves (68) successively, the non-filtrate of a part (73) in candle filter tank body (55) enters circulation drain pipe (19) and forms cross-flow circulation fluid (70), cross-flow circulation fluid (70) enters in cross-flow water circulating pump (69), cross-flow water circulating pump (69) promotes cross-flow circulation fluid (70) respectively through several cross-flow control valves (68) opened and closed successively, cross-flow circulation fluid (70) enters the collecting pipe (21) of the circulation fluid collecting pipe parts of each filter core conflux grate part (8) from several circulation feed tubes (23) respectively, cross-flow circulation fluid (70) is respectively through several flow guide sleeve parts, cross-flow circulation fluid (70) is respectively through radial annular space (34) and axial annular space (33), cross-flow circulation fluid (70) enters in candle filter tank body (55) by axial annular space (33), form a closed circuit, cross-flow circulation fluid (70) axially flows at candle formula filter core (9) radially-outer surface, cross-flow circulation fluid (70) produces turbulent flow and larger shear force faster at candle formula filter core (9) radially-outer surface, cross-flow cleaning is carried out to the filter cake being attached to candle formula filter core (9) outer surface, delay gathering way of filter cake thickness, improve the rate of filtration and the filtering traffic of candle filter,
The backwash phase process of cross-current type candle filter in concentration technology system and dry deslagging process system is:
Cross-current type candle filter is after carrying out a period of time filtration work, and candle formula filter core (9) radially-outer surface still can produce filter cake, and the backwash stage of cross-current type candle filter can remove this filter cake; Back flush adopts special cleaning fluid (67), or back flush adopts the clear filtrate (64) being delivered to upstream device; open residual-gas valve (57) and backwash valve (65), cleaning fluid (67) enters backwash pump (66), backwash pump (66) promotes cleaning fluid (67) through backwash valve (65), the technology controlling and process valve (62) that cleaning fluid (67) opens and closes successively respectively through several, cleaning fluid (67) enters the collecting pipe (21) of the fluid collecting pipe parts of each filter core conflux grate part (8) from several drain pipes (28) respectively, the gap that cleaning fluid (67) passes outwards through candle formula filter core (9) from the inner chamber of candle formula filter core (9) enters in candle filter tank body (55), back flush is carried out to the filter cake being attached to candle formula filter core (9) outer surface, the filter cake being attached to candle formula filter core (9) outer surface is come off, block filter cake fragment sinks down into bottom cross-current type candle filter fast, filter cake fragment and the non-filtrate of a part (73) are discharged candle filter tank body (55) through residual-gas valve (57) and are formed raffinate (58),
The discharge phase process of cross-current type candle filter in concentration technology system is:
Cross-current type candle filter is after carrying out a period of time filtration work, the filter cake fragment of some is have accumulated bottom cross-current type candle filter, open drain valve (56), filter cake fragment and the non-filtrate of a part (73) are discharged candle filter tank body (55) through drain valve (56) and are formed concentrate;
The blowback discharging phase process of cross-current type candle filter in dry deslagging process system is:
The filtration stage of cross-current type candle filter in dry deslagging process system, in candle filter tank body (55), in non-filtrate (73), the concentration of impurity particle increases gradually, now closing cross-flow water circulating pump (69) and several cross-flow control valves (68), stopping the filter cake to being attached to candle formula filter core (9) outer surface to carry out cross-flow cleaning, liquid feed valve (72), several technology controlling and process valves (62) and liquid valve (63) are still opened, non-filtrate (73) continues to enter in candle filter tank body (55), and the gap continuing across several candles formula filter core (9) enters candle formula filter core (9) inside, in candle filter tank body (55), in non-filtrate (73), impurity particle is attached to rapidly candle formula filter core (9) outer surface and forms filter cake, closes liquid feed valve (72), several technology controlling and process valves (62) and liquid valve (63) afterwards, open air bleeding valve (71) and residual-gas valve (57), the non-filtrate (73) in candle filter tank body (55) is discharged candle filter tank body (55) through residual-gas valve (57) and is formed raffinate (58), after non-filtrate (73) in emptying candle filter tank body (55), close air bleeding valve (71) and residual-gas valve (57), open drain valve (56) and Compressed Gas control valve (59), open and close several technology controlling and process valves (62) successively, Compressed Gas (61) from source of the gas flows out from air accumulator (60), Compressed Gas (61) is through Compressed Gas control valve (59), the technology controlling and process valve (62) that Compressed Gas (61) opens and closes successively respectively through several, Compressed Gas (61) enters the collecting pipe (21) of the fluid collecting pipe parts of each filter core conflux grate part (8) from several drain pipes (28) respectively, the gap that Compressed Gas (61) passes outwards through candle formula filter core (9) from the inner chamber of candle formula filter core (9) enters in candle filter tank body (55), blowback discharging is carried out to the filter cake being attached to candle formula filter core (9) outer surface, the filter cake being attached to candle formula filter core (9) outer surface is come off, dry block filter cake fragment is through raffinate manifold (2) and drain valve (56), discharged by the floss hole (1) bottom cross-current type candle filter.
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| CN113713491A (en) * | 2021-07-30 | 2021-11-30 | 成都思达能环保设备有限公司 | Filter element mounting structure and filter device comprising same |
| CN115253464A (en) * | 2022-07-28 | 2022-11-01 | 江苏美亚科泽过滤技术有限公司 | Cross-flow type water purification filter element |
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Effective date of registration: 20230925 Address after: No. 68 Liming Road, Huaqiao Town, Kunshan City, Suzhou City, Jiangsu Province, 215300 Patentee after: Jiangsu Qinggong Machinery Equipment Manufacturing Co.,Ltd. Address before: 116600 No. 34-3 Harbin Road, Dalian Economic and Technological Development Zone, Liaoning Province Patentee before: DALIAN BILAN ENERGY SAVING ENVIRONMENTAL PROTECTION SCIENCE & TECHNOLOGY Co.,Ltd. |