CN105056596B - Cross-current type candle filter - Google Patents
Cross-current type candle filter Download PDFInfo
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- CN105056596B CN105056596B CN201510560285.9A CN201510560285A CN105056596B CN 105056596 B CN105056596 B CN 105056596B CN 201510560285 A CN201510560285 A CN 201510560285A CN 105056596 B CN105056596 B CN 105056596B
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Abstract
The present invention is a kind of cross-current type candle filter, and it is related to a kind of filter being applied to liquid medium, and cross-current type candle filter is mainly made up of upper tank body part, lower tank part, filter element conflux grate part, residual liquid manifold.Cross-current type candle filter can realize cross flow filter mode in concentration technology system and dry deslagging process system.And in concentration technology system and dry deslagging process system, wash away, during the cross-flow cleaning of filtration stage, the bulk filter cake fragment getting off, and during the back flush of backwash stage, wash away the bulk filter cake fragment getting off, cross-current type candle filter bottom can quickly be sunk down into, wash away in the non-filtrate that the fritter filter cake fragment getting off remains suspended in candle filter tank body simultaneously, this fritter filter cake fragment is re-attached to candle type filter element outer surface together with the impurity particle in non-filtrate and forms filter cake, the voidage of cake layer is made to increase, improve the permeance property of cake layer, thus improving the rate of filtration and the filtering traffic of candle filter.
Description
Technical field
The present invention is a kind of cross-current type candle filter, and it is related to a kind of filter being applied to liquid medium, particularly
It is related to a kind of candle filter of employing cross flow filter mode.
Background technology
Common candle filter system is concentration technology system and dry deslagging technique according to the state demarcation of filter cake during discharge
System.In filtration stage, non-filtrate enters in candle filter tank body by feed tube common concentration technology system candle filter,
Non- filtrate passes through the gap of candle type filter element to enter collecting pipe, and discharges formation clear filtrate via drain pipe.Impurity in non-filtrate
The outer surface that granule is then intercepted at candle type filter element forms filter cake.In the backwash stage, cleanout fluid or clear filtrate are by drain pipe
Enter collecting pipe, and the gap passing outwards through candle type filter element from the inner chamber of candle type filter element enters in candle filter tank body, makes attached
The filter cake in candle type filter element outer surface to come off, block filter cake fragment quickly sinks down into candle filter bottom, through one section
The accumulation of time, opens the drain valve of candle filter bottom, and filter cake fragment and the non-filtrate of a part are discharged by delivery pipe and formed
Concentrated solution.
Commonly in filtration stage, non-filtrate enters candle filter tank by feed tube to dry deslagging process system candle filter
In vivo, non-filtrate passes through the gap of candle type filter element to enter collecting pipe, and discharges formation clear filtrate via drain pipe.In non-filtrate
The outer surface that impurity particle is then intercepted at candle type filter element forms filter cake.In blowback discharging phase, open candle filter bottom
Drain valve, the non-filtrate emptying in candle filter tank body, open compressed gas control valve, compressed gas are entered by drain pipe
Enter collecting pipe, and the gap passing outwards through candle type filter element from the inner chamber of candle type filter element enters in candle filter tank body, makes attachment
Come off in the filter cake of candle type filter element outer surface, the block filter cake fragment being dried is discharged by the delivery pipe of candle filter bottom.
Common concentration technology system candle filter and commonly dry deslagging process system candle filter are in filtration stage, institute
Some non-filtrate entering in candle filter tank body all flows to the inner chamber of candle type filter element from the outer surface of candle type filter element, belongs to single
To filtration(Also referred to as dead-end filtration).Common concentration technology system candle filter and commonly dry deslagging process system candle filter
In filtration stage, filter cake thickness gathers way soon, and increasing filtration resistance with filter cake thickness can increase, and causes common candle formula to filter
The rate of filtration of device and filtering traffic decline.
According to cross flow filter mode, candle filter, in filtration stage, enters a part in candle filter tank body
The inner chamber that non-filtrate flows to candle type filter element from the outer surface of candle type filter element forms clear filtrate.The non-filtrate of another part is from candle formula
The outer surface of filter element flows transversely through, and forms closed circuit.The non-filtrate flowing transversely through candle type filter element outer surface can be filtered in candle formula
Core outer surface produces turbulent flow and larger shear force faster, delays gathering way of filter cake thickness, improves the mistake of candle filter
Filtering velocity degree and filtering traffic.Due to structural agent, common candle filter can not adopt cross flow filter mode.
Content of the invention
The purpose of the present invention is the defect overcoming common candle filter can not adopt cross flow filter mode, provides a kind of energy
Enough adopt cross flow filter mode, and be applied to concentration technology system and the cross-current type candle filter of dry deslagging process system.
Embodiment of the present invention is as follows:
The total feature of the present invention is that cross-current type candle filter includes upper tank body part, lower tank part, filter element bus-bar
Part, residual liquid manifold.Several filter element conflux grate parts are arranged in lower tank part, on each filter element conflux grate part
Several candle type filter element are installed, upper tank body part is arranged on lower tank component upper ends, residual liquid manifold is arranged on lower tank portion
Part lower end.
Upper tank body part is welded together by upper tank body flange, upper shell, ellipse head from bottom to up successively, upper tank body portion
Part upper surface has feed tube, exhaustor, circulation drain pipe.
Lower tank part is from bottom to up successively by discharge pipe flange, delivery pipe, conical head, lower shell, lower tank flange
Weld together, lower shell is cylindrical, lower shell upper end side surface soldered have several circulate feed tube, each circulate into
One end of liquid pipe is located at the radial outside of lower shell, and the other end is located at the radially inner side of lower shell, positioned at lower shell radial outside
Circulation feed tube one end have flange, positioned at lower shell radially inner side circulation feed tube one end there is no flange.Lower shell
Lower end side surface soldered has several drain pipes, and one end of each drain pipe is located at the radial outside of lower shell, other end position
In the radially inner side of lower shell, there is flange the one end positioned at the drain pipe of lower shell radial outside, positioned at lower shell radially inner side
One end of drain pipe there is no flange.Lower shell side surface has a manhole.The lower shell footpath on each circulation feed tube opposite
It is welded with a upper fixed support to inner surface, fixed support on each is mounted on bolt.Each drain pipe pair
The lower shell radially inner side surface soldered in face has a lower fixed support, and each lower fixed support is mounted on bolt.
Ringwise, residual liquid manifold radial outside surface soldered has a residual liquid pipe, the inner chamber of residual liquid pipe to residual liquid manifold
Communicate with residual liquid manifold annular cavity, the lateral ends of residual liquid pipe have residual liquid pipe flange, after the assembling of cross-current type candle filter,
Form floss hole in the lower end of residual liquid manifold annular cavity.
Filter element conflux grate part include a circulation fluid conflux duct member, one go out liquid and conflux duct member and several candle formulas
Filter element.Candle type filter element is in cylinder, and the lower end of candle type filter element is filter element joint, in the central through hole of filter element joint and candle type filter element
Portion is connected, and filter element joint has external screw thread, and filter element lock nut is arranged on filter element joint, and the centre of candle type filter element is cylindric
Filter medium, filter medium is screen casing, or filter medium is filter screen, or filter medium is filter cloth, candle type filter element upper
End is filter element positioning end, and filter element positioning end has external screw thread, and filter element location nut is arranged on filter element positioning end.
Go out the liquid duct member that confluxes to include collecting pipe fixed plate one, collecting pipe one, conflux pipe joint one and several filter elements even
Joint.Going out the conflux centre of duct member of liquid is collecting pipe one, and collecting pipe one is cylindrical, and collecting pipe one has several collecting pipes
Welding hole one, one end of collecting pipe one is welded with collecting pipe fixed plate one, and the other end of collecting pipe one is welded with the pipe joint that confluxes
One, several filter element union joints are welded in collecting pipe welding hole one.
Collecting pipe fixed plate one is in cylinder, and the centre of collecting pipe fixed plate one is cylindrical locating flange, collecting pipe
There is welding boss one end of fixed plate one, and welding boss inserts one end radially inner side of collecting pipe one, makes collecting pipe fixed plate one
Weld together with collecting pipe one.The other end of collecting pipe fixed plate one is connected plate, and the plate that is connected has fixed plate
Bolt hole.
The pipe joint one that confluxes is cylindrical, and there is welding ring the one end of the pipe joint one that confluxes, and welding ring inserts collecting pipe one
Other end radially inner side, the pipe joint one that makes to conflux is welded together with collecting pipe one.Conflux pipe joint one other end footpath inside
There is o-ring groove on surface, and O-ring seals are arranged in o-ring groove.
Filter element union joint is cylindrical, and the upper end of filter element union joint is branch sleeve one, and the lower end of filter element union joint is even
Female connector cylinder two, the centre of filter element union joint is locating ring, and the inner radial surface of branch sleeve one has branch sleeve female thread, connects
Sleeve two inserts in the collecting pipe welding hole one of collecting pipe one, so that filter element union joint is welded together with collecting pipe one.
Circulation fluid confluxes, and duct member includes collecting pipe fixed plate two, collecting pipe two, conflux pipe joint two and several water conservancy diversion
Set part, flow guide sleeve part includes flow guide sleeve, guide ring.The conflux centre of duct member of circulation fluid is collecting pipe two, collecting pipe two
Cylindrical, collecting pipe two has several collecting pipe welding holes two, one end of collecting pipe two is welded with collecting pipe fixed plate two,
The other end of collecting pipe two is welded with the pipe joint two that confluxes, and several flow guide sleeves are welded in collecting pipe welding hole two.Collecting pipe
Fixed plate two is in cylinder, and the centre of collecting pipe fixed plate two is cylindrical locating flange, one end of collecting pipe fixed plate two
There is welding boss, welding boss inserts one end radially inner side of collecting pipe two, makes collecting pipe fixed plate two and collecting pipe two welding
Together.The other end of collecting pipe fixed plate two is connected plate, and the plate that is connected has bolt of fixing plate hole.Collecting pipe connects
Two cylindrical, and there is welding ring the one end of the pipe joint two that confluxes, and welding ring inserts the other end radially inner side of collecting pipe two, makes
The pipe joint two that confluxes is welded together with collecting pipe two.The other end inner radial surface of pipe joint two of confluxing has o-ring groove, O
Shape sealing ring is arranged in o-ring groove.
Flow guide sleeve is cylindrical, is flaring flow guide sleeve cone cylinder in the middle of flow guide sleeve, and the upper end of flow guide sleeve is water conservancy diversion socket
Head, the lower end of flow guide sleeve is flow guide sleeve straight tube, and there is flow guide sleeve female thread the upper end of flow guide sleeve straight tube inner radial surface, and water conservancy diversion is socketed
In the collecting pipe welding hole two of head insertion collecting pipe two, flow guide sleeve is made to weld together with collecting pipe two.
Guide ring is in annular, and the upper end of guide ring is the guide ring fixed cylinder of annular, and the footpath of guide ring fixed cylinder is outside
There is guide ring external screw thread on surface, and the lower end of guide ring is the guide ring base plate of annular, is guide ring center in the middle of guide ring base plate
Hole, guide ring base plate upper end face has several connection gussets, and connection gussets are connected guide ring fixed cylinder with guide ring base plate
Together, form radial direction annular space between the upper end of the lower end of guide ring fixed cylinder and guide ring base plate, guide ring base plate is radially
Outer surface has several axially position muscle.
During the assembling of flow guide sleeve part, by engaging of guide ring external screw thread and flow guide sleeve female thread, guide ring is installed and consolidates
It is scheduled on flow guide sleeve inner chamber.After the assembling of flow guide sleeve part, in guide ring base plate radially-outer surface and flow guide sleeve straight tube inner radial surface
Lower end between form axial annular space.
During the assembling of filter element conflux grate part, several candle type filter element pass through filter element joint and filter element lock nut candle formula filter
Core is fixed in the branch sleeve female thread of filter element union joint.The filter element positioning end insertion guide ring center of several candle type filter element
Hole, is arranged on filter element location nut on filter element positioning end, and makes filter element location nut be located at flow guide sleeve inner chamber.Filter element bus-bar
After part assembling, circulation fluid conflux duct member, go out that liquid confluxes duct member and several candle type filter element link together.
During the assembling of cross-current type candle filter, several filter element conflux grate parts are arranged in lower tank part, if making
One end that dry circulation feed tube is located at lower shell radially inner side is inserted circulation fluid and is confluxed the confluxing in pipe joint two of duct member, makes
One end that several drain pipes are located at lower shell radially inner side is inserted out liquid and is confluxed the confluxing in pipe joint one of duct member, makes bolt
Through bolt of fixing plate hole, the conflux collecting pipe fixed plate two of duct member of circulation fluid is arranged on upper fixed support, going out liquid
The collecting pipe fixed plate one of duct member of confluxing is arranged on lower fixed support.Upper tank body part is arranged on lower tank component upper ends,
Residual liquid manifold is arranged on lower tank lower, with drain valve, residual liquid manifold is fixed on the discharge of lower tank lower
On pipe flange.
Main technique cyclic process in concentration technology system for the cross-current type candle filter is:Filtration stage, backwash
Stage, discharge phase.
Main technique cyclic process in dry deslagging process system for the cross-current type candle filter is:Filtration stage, recoil
Wash stage, blowback discharging phase.
Filtration stage process in concentration technology system and dry deslagging process system for the cross-current type candle filter is:
Non- filtrate is entered in candle filter tank body by feed tube through liquid feed valve, and non-filtrate is each passed through several candle formulas
The gap of filter element enters inside candle type filter element, and non-filtrate flows into out liquid via the central through hole of filter element joint and confluxes the remittance of duct member
In flow tube one, non-filtrate discharges candle filter tank body through the pipe joint one that confluxes by drain pipe, if non-filtrate again respectively through
Dry technology controlling and process valve, non-filtrate flows to upstream device from liquid valve and forms clear filtrate.Impurity particle in non-filtrate is then blocked
Cut the outer surface in candle type filter element and form filter cake.
Cross-current type candle filter, while carrying out filtering work, opens and closes several cross-flow control valves successively,
The non-filtrate of a part in candle filter tank body enters circulation drain pipe and forms cross-flow circulation fluid, and cross-flow circulation fluid enters cross-flow
In water circulating pump, cross-flow water circulating pump promotes cross-flow circulation fluid to control respectively through several cross-flows opening and closing successively
Valve, the circulation fluid that cross-flow circulation fluid respectively enters each filter element conflux grate part from several circulation feed tubes confluxes duct member
In collecting pipe two, respectively through several flow guide sleeve parts, cross-flow circulation fluid is respectively through radial direction annular space and axle for cross-flow circulation fluid
To annular space, cross-flow circulation fluid is entered in candle filter tank body by axial annular space, forms a closed circuit, cross-flow circulation fluid exists
Candle type filter element radially-outer surface axially flows, cross-flow circulation fluid candle type filter element radially-outer surface produce faster turbulent flow and
Larger shear force, carries out cross-flow cleaning to the filter cake being attached to candle type filter element outer surface, delays gathering way of filter cake thickness, carry
The rate of filtration of high candle filter and filtering traffic.
Backwash phase process in concentration technology system and dry deslagging process system for the cross-current type candle filter is:
After carrying out filtering work for a period of time, candle type filter element radially-outer surface still can produce cross-current type candle filter
Filter cake, the backwash stage of cross-current type candle filter can remove this filter cake.Back flush adopts special cleanout fluid, or instead
To flushing using the clear filtrate being delivered to upstream device.Open residual-gas valve and backwash valve, cleanout fluid enters backwash pump, instead
Flush water pump promotes cleanout fluid to pass through backwash valve, the technology controlling and process that cleanout fluid opens and closes successively respectively through several
Valve, the liquid that goes out that cleanout fluid respectively enters each filter element conflux grate part from several drain pipes confluxes the collecting pipe one of duct member
In, the gap that cleanout fluid passes outwards through candle type filter element from the inner chamber of candle type filter element enters in candle filter tank body, to being attached to
The filter cake of candle type filter element outer surface carries out back flush, so that the filter cake being attached to candle type filter element outer surface is come off, the filter cake of bulk
Fragment quickly sinks down into cross-current type candle filter bottom, and filter cake fragment and the non-filtrate of a part discharge candle formula mistake through residual-gas valve
Filter tank body forms residual liquid.
Discharge phase process in concentration technology system for the cross-current type candle filter is:
After carrying out filtering work for a period of time, cross-current type candle filter bottom have accumulated one to cross-current type candle filter
The filter cake fragment of fixed number amount, opens drain valve, and filter cake fragment and the non-filtrate of a part discharge candle filter tank through drain valve
Body forms concentrated solution.
Blowback discharging phase process in dry deslagging process system for the cross-current type candle filter is:
Filtration stage in dry deslagging process system for the cross-current type candle filter, in non-filtrate in candle filter tank body
The concentration of impurity particle is gradually increased, and now closes cross-flow water circulating pump and several cross-flow control valves, stops to being attached to candle
The filter cake of formula filter element outer surface carries out cross-flow cleaning.Liquid feed valve, several technology controlling and process valves and liquid valve are still opened, non-filtrate
Go successively in candle filter tank body, and continue across the gap of several candle type filter element enter inside candle type filter element, formula of lighting up
In non-filtrate in filter canister body impurity particle be attached to rapidly candle type filter element outer surface formed filter cake, afterwards close liquid feed valve,
Several technology controlling and process valves and liquid valve.Open air bleeding valve and residual-gas valve, the non-filtrate in candle filter tank body is through residual liquid
Valve is discharged candle filter tank body and is formed residual liquid.After non-filtrate in emptying candle filter tank body, close air bleeding valve and residual liquid
Valve, opens drain valve and compressed gas control valve, opens and closes several technology controlling and process valves successively, from the compressed gas of source of the gas
Body flows out from air accumulator, and compressed gas pass through compressed gas control valve, and compressed gas are opened successively respectively through several and closed
The technology controlling and process valve closing, the liquid that goes out that compressed gas respectively enter each filter element conflux grate part from several drain pipes confluxes pipe portion
In the collecting pipe one of part, the gap that compressed gas pass outwards through candle type filter element from the inner chamber of candle type filter element enters candle filter tank
In vivo, blowback discharging is carried out to the filter cake being attached to candle type filter element outer surface, so that the filter cake being attached to candle type filter element outer surface is taken off
Fall, the block filter cake fragment being dried passes through residual liquid manifold and drain valve, by the floss hole row of cross-current type candle filter bottom
Go out.
Cross-current type candle filter can realize cross flow filter mode in concentration technology system and dry deslagging process system.
And in concentration technology system and dry deslagging process system, wash away, during the cross-flow cleaning of filtration stage, the bulk filter cake getting off broken
Piece, and during the back flush of backwash stage, wash away the bulk filter cake fragment getting off, can quickly sink down into cross-current type candle formula and filter
Device bottom, washes away in the non-filtrate that the fritter filter cake fragment getting off remains suspended in candle filter tank body, this fritter simultaneously
Filter cake fragment is re-attached to candle type filter element outer surface together with the impurity particle in non-filtrate and forms filter cake, makes the sky of cake layer
Gap rate increases, and improves the permeance property of cake layer, thus improving the rate of filtration and the filtering traffic of candle filter.
Brief description
Figure of description is structure chart and the schematic diagram of cross-current type candle filter.Wherein Fig. 1 is that cross-current type candle formula filters
The axonometric drawing of device.Fig. 2 is the isometric cutaway view of cross-current type candle filter.Fig. 3 is the axonometric drawing of upper tank body part.Fig. 4 is candle
The axonometric drawing of formula filter element.Fig. 5 is the axonometric drawing of lower tank part.Fig. 6 is the isometric cutaway view of lower tank part.Fig. 7 is filter element
The axonometric drawing of conflux grate part.Fig. 8 is the isometric cutaway view of filter element conflux grate part.Fig. 9 is that circulation fluid confluxes the axle of duct member
Survey sectional view.Figure 10 is liquid to conflux the isometric cutaway view of duct member.Figure 11 is the isometric cutaway view of flow guide sleeve part.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 element union joint.Figure 15
It is to conflux the isometric cutaway view of pipe joint one or the pipe joint two that confluxes.Figure 16 is collecting pipe fixed plate one or collecting pipe fixed plate two
Axonometric drawing.Figure 17 is the axonometric drawing of collecting pipe one.Figure 18 is the axonometric drawing of residual liquid manifold.Figure 19 is that cross-current type candle formula filters
The schematic diagram of device concentration technology system.Figure 20 is the schematic diagram of cross-current type candle filter dry deslagging process system.
In figure be labeled with floss hole 1, residual liquid manifold 2, discharge pipe flange 3, delivery pipe 4, conical head 5, bolt 6, under
Fixed support 7, filter element conflux grate part 8, candle type filter element 9, lower shell 10, filter element location nut 11, upper fixed support 12, lower tank
Body flange 13, upper tank body flange 14, upper shell 15, ellipse head 16, feed tube 17, exhaustor 18, circulation drain pipe 19, conflux
Pipe fixed plate 1, collecting pipe 1, the pipe joint 1 that confluxes, circulation feed tube 23, flow guide sleeve 24, guide ring 25, filter element lock
Determine nut 26, filter element union joint 27, drain pipe 28, residual liquid pipe 29, manhole 30, O-ring seals 31, bolt of fixing plate hole 32, axle
To annular space 33, radial direction annular space 34, water conservancy diversion bell and spigot joint 35, flow guide sleeve cone cylinder 36, flow guide sleeve female thread 37, flow guide sleeve straight tube 38, lead
Stream ring external screw thread 39, axially position muscle 40, guide ring fixed cylinder 41, guide ring base plate 42, connection gussets 43, guide ring centre bore
44th, branch sleeve 1, branch sleeve 2 46, locating ring 47, branch sleeve female thread 48, welding ring 49, o-ring groove 50,
Be connected plate 51, welding boss 52, collecting pipe welding hole 1, residual liquid pipe flange 54, candle filter tank body 55, drain valve
56th, residual-gas valve 57, residual liquid 58, compressed gas control valve 59, air accumulator 60, compressed gas 61, technology controlling and process valve 62, liquid valve
63rd, clear filtrate 64, backwash valve 65, backwash pump 66, cleanout 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 element joint 75, filter element positioning end 76, collecting pipe
Fixed plate 2 77, collecting pipe 2 78, conflux pipe joint 2 79.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is further discussed below.
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, cross-current type candle filter includes upper tank body part, lower tank portion
Part, filter element conflux grate part 8, residual liquid manifold 2.Several filter element conflux grate parts 8 are arranged in lower tank part, each
Several candle type filter element 9 are provided with filter element conflux grate part 8, upper tank body part is arranged on lower tank component upper ends, residual liquid converges
Storage 2 is arranged on lower tank lower.
Upper tank body part is welded together by upper tank body flange 14, upper shell 15, ellipse head 16 from bottom to up successively, on
Canister component upper surface has feed tube 17, exhaustor 18, circulation drain pipe 19.
Lower tank part is from bottom to up successively by discharge pipe flange 3, delivery pipe 4, conical head 5, lower shell 10, lower tank
Flange 13 welds together, and lower shell 10 is cylindrical, and lower shell 10 upper end side surface soldered has several to circulate feed tube 23,
One end of each circulation feed tube 23 is located at the radial outside of lower shell 10, and the other end is located at the radially inner side of lower shell 10,
There is flange one end positioned at the circulation feed tube 23 of lower shell 10 radial outside, positioned at the circulation feed liquor of lower shell 10 radially inner side
One end of pipe 23 does not have flange.Lower shell 10 lower end side surface soldered has several drain pipes 28, and the one of each drain pipe 28
End is located at the radial outside of lower shell 10, and the other end is located at the radially inner side of lower shell 10, positioned at lower shell 10 radial outside
There is flange one end of drain pipe 28, and the one end positioned at the drain pipe 28 of lower shell 10 radially inner side does not have flange.Lower shell 10 side
There is a manhole 30 on surface.The lower shell 10 radially inner side surface soldered on each circulation feed tube 23 opposite has a upper fixation
Support 12, fixed support 12 on each is mounted on bolt 6.Lower shell 10 radially inner side on each drain pipe 28 opposite
Surface soldered has a lower fixed support 7, and each lower fixed support 7 is mounted on bolt 6.
With reference to Fig. 1, Fig. 2 and Figure 18, ringwise, residual liquid manifold 2 radial outside surface soldered has one to residual liquid manifold 2
Residual liquid pipe 29, the inner chamber of residual liquid pipe 29 is communicated with residual liquid manifold 2 annular cavity, and the lateral ends of residual liquid pipe 29 have residual liquid tube method
Blue 54, after the assembling of cross-current type candle filter, form floss hole 1 in the lower end of residual liquid manifold 2 annular cavity.
With reference to Fig. 7 to Figure 17, filter element conflux grate part 8 include a circulation fluid conflux duct member, one go out liquid collecting pipe
Part and several candle type filter element 9.Candle type filter element 9 is in cylinder, and the lower end of candle type filter element 9 is filter element joint 75, filter element joint
75 central through hole is connected with inside candle type filter element 9, and filter element joint 75 has external screw thread, and filter element lock nut 26 is arranged on filter element
On joint 75, the centre of candle type filter element 9 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 type filter element 9 is filter element positioning end 76, and filter element positioning end 76 has external screw thread, and filter element is fixed
Position nut 11 is arranged on filter element positioning end 76.
Go out liquid conflux duct member include collecting pipe fixed plate 1, collecting pipe 1, conflux pipe joint 1 and several
Filter element union joint 27.Going out the conflux centre of duct member of liquid is collecting pipe 1, and collecting pipe 1 is cylindrical, on collecting pipe 1
There are several collecting pipe welding holes 1, one end of collecting pipe 1 is welded with collecting pipe fixed plate 1, collecting pipe 1
The other end is welded with the pipe joint 1 that confluxes, and several filter element union joints 27 are welded in collecting pipe welding hole 1.
Collecting pipe fixed plate 1 is in cylinder, and the centre of collecting pipe fixed plate 1 is cylindrical locating flange 74,
There is welding boss 52 one end of collecting pipe fixed plate 1, and welding boss 52 inserts one end radially inner side of collecting pipe 1, makes
Collecting pipe fixed plate 1 is welded together with collecting pipe 1.The other end of collecting pipe fixed plate 1 is connected plate
51, the plate 51 that is connected there is bolt of fixing plate hole 32.
The pipe joint 1 that confluxes is cylindrical, and there is welding ring 49 one end of the pipe joint 1 that confluxes, and welding ring 49 insertion converges
The other end radially inner side of flow tube 1, the pipe joint 1 that makes to conflux is welded together with collecting pipe 1.Conflux pipe joint one
22 other end inner radial surface has o-ring groove 50, and O-ring seals 31 are arranged in o-ring groove 50.
Filter element union joint 27 is cylindrical, and the upper end of filter element union joint 27 is branch sleeve 1, filter element union joint 27
Lower end is branch sleeve 2 46, and the centre of filter element union joint 27 is locating ring 47, and the inner radial surface of branch sleeve 1 has even
Connect internal thread of sleeve 48, branch sleeve 2 46 inserts in the collecting pipe welding hole 1 of collecting pipe 1, makes filter element union joint 27
Weld together with collecting pipe 1.
Circulation fluid confluxes, and duct member includes collecting pipe fixed plate 2 77, collecting pipe 2 78, conflux pipe joint 2 79 and some
Individual flow guide sleeve part, flow guide sleeve part includes flow guide sleeve 24, guide ring 25.The conflux centre of duct member of circulation fluid is collecting pipe two
78, collecting pipe 2 78 is cylindrical, and collecting pipe 2 78 has several collecting pipe welding holes two, one end welding of collecting pipe 2 78
There is collecting pipe fixed plate 2 77, the other end of collecting pipe 2 78 is welded with the pipe joint 2 79 that confluxes, several flow guide sleeves 24 weld
In collecting pipe welding hole two.Collecting pipe fixed plate 2 77 is in cylinder, and the centre of collecting pipe fixed plate 2 77 is cylindrical
Locating flange 74, there is welding boss 52 one end of collecting pipe fixed plate 2 77, and welding boss 52 inserts one end of collecting pipe 2 78
Radially inner side, makes collecting pipe fixed plate 2 77 weld together with collecting pipe 2 78.The other end of collecting pipe fixed plate 2 77 has
Be connected plate 51, and the plate 51 that is connected has bolt of fixing plate hole 32.The pipe joint 2 79 that confluxes is cylindrical, and conflux pipe joint
There is welding ring 49 2 79 one end, and welding ring 49 inserts the other end radially inner side of collecting pipe 2 78, makes the pipe joint 2 79 that confluxes
Weld together with collecting pipe 2 78.The other end inner radial surface of pipe joint 2 79 of confluxing has an o-ring groove 50, and O shape seals
Circle 31 is arranged in o-ring groove 50.
Flow guide sleeve 24 is cylindrical, is flaring flow guide sleeve cone cylinder 36, the upper end of flow guide sleeve 24 is in the middle of flow guide sleeve 24
Water conservancy diversion bell and spigot joint 35, the lower end of flow guide sleeve 24 is flow guide sleeve straight tube 38, and there is water conservancy diversion the upper end of flow guide sleeve straight tube 38 inner radial surface
Set female thread 37, water conservancy diversion bell and spigot joint 35 inserts in the collecting pipe welding hole two of collecting pipe 2 78, makes flow guide sleeve 24 and collecting pipe two
78 weld together.
Guide ring 25 is in annular, and the upper end of guide ring 25 is the guide ring fixed cylinder 41 of annular, guide ring fixed cylinder 41
Radially-outer surface have a guide ring external screw thread 39, the lower end of guide ring 25 is the guide ring base plate 42 of annular, guide ring base plate 42
Centre is guide ring centre bore 44, and guide ring base plate 42 upper end face has several connection gussets 43,43 water conservancy diversion of connection gussets
Ring fixed cylinder 41 is linked together with guide ring base plate 42, in the upper end of the lower end of guide ring fixed cylinder 41 and guide ring base plate 42
Between form radial direction annular space 34, guide ring base plate 42 radially-outer surface has several axially position muscle 40.
During the assembling of flow guide sleeve part, by engaging of guide ring external screw thread 39 and flow guide sleeve female thread 37, guide ring 25
It is fixed on flow guide sleeve 24 inner chamber.After the assembling of flow guide sleeve part, in guide ring base plate 42 radially-outer surface and flow guide sleeve straight tube
Form axial annular space 33 between the lower end of 38 inner radial surface.
During filter element conflux grate part 8 assembling, several candle type filter element 9 pass through filter element joint 75 and filter element lock nut 26
Candle type filter element 9 is fixed in the branch sleeve female thread 48 of filter element union joint 27.The filter element positioning end 76 of several candle type filter element 9
Insertion guide ring centre bore 44, is arranged on filter element location nut 11 on filter element positioning end 76, and makes filter element location nut 11
In flow guide sleeve 24 inner chamber.Filter element conflux grate part 8 assembling after, circulation fluid conflux duct member, go out liquid conflux duct member and several
Candle type filter element 9 links together.
With reference to Fig. 2, during the assembling of cross-current type candle filter, several filter element conflux grate parts 8 are arranged on lower tank portion
In part, so that several is circulated feed tubes 23 and be located at one end of lower shell 10 radially inner side and insert circulation fluid and conflux the confluxing of duct member
In pipe joint 2 79, make one end that several drain pipes 28 are located at lower shell 10 radially inner side insert out liquid and conflux the remittance of duct member
In flow tube joint 1, bolt 6 is made to pass through bolt of fixing plate hole 32, the collecting pipe fixed plate 2 77 of duct member that circulation fluid is confluxed
It is arranged on fixed support 12, be arranged on lower fixed support 7 going out the conflux collecting pipe fixed plate 1 of duct member of liquid.On
Canister component is arranged on lower tank component upper ends, and residual liquid manifold 2 is arranged on lower tank lower, with 56 residual liquids of drain valve
Manifold 2 is fixed on the discharge pipe flange 3 of lower tank lower.
With reference to Figure 19 and Figure 20, main technique cyclic process in concentration technology system for the cross-current type candle filter is:
Filtration stage, backwash stage, discharge phase.
Main technique cyclic process in dry deslagging process system for the cross-current type candle filter is:Filtration stage, recoil
Wash stage, blowback discharging phase.
Filtration stage process in concentration technology system and dry deslagging process system for the cross-current type candle filter is:
Non- filtrate 73 enters in candle filter tank body 55 through liquid feed valve 72 by feed tube 17, and non-filtrate 73 is each passed through
The gap of several candle type filter element 9 enters inside candle type filter element 9, and non-filtrate 73 flows into out via the central through hole of filter element joint 75
Liquid conflux duct member collecting pipe 1 in, non-filtrate 73 discharges candle filter through the pipe joint 1 that confluxes by drain pipe 28
Tank body 55, again respectively through several technology controlling and process valves 62, non-filtrate 73 flows to upstream device shape from liquid valve 63 to non-filtrate 73
Become clear filtrate 64.The outer surface that impurity particle in non-filtrate 73 is then intercepted at candle type filter element 9 forms filter cake.
Cross-current type candle filter, while carrying out filtering work, opens and closes several cross-flow control valves successively
68, the non-filtrate of the part in candle filter tank body 55 73 enters circulation drain pipe 19 and forms cross-flow circulation fluid 70, and cross-flow follows
Ring liquid 70 enters in cross-flow water circulating pump 69, and cross-flow water circulating pump 69 promotes cross-flow circulation fluid 70 respectively through unlatching successively and to close
Several cross-flow control valves 68 closed, cross-flow circulation fluid 70 respectively enters each filter element bus-bar from several circulation feed tubes 23
The circulation fluid of part 8 conflux duct member collecting pipe 2 78 in, cross-flow circulation fluid 70 is respectively through several flow guide sleeve parts, wrong
Stream circulation fluid 70 enters candle formula by axial annular space 33 and filters respectively through radial direction annular space 34 and axial annular space 33, cross-flow circulation fluid 70
In device tank body 55, form a closed circuit, cross-flow circulation fluid 70 axially flows in candle type filter element 9 radially-outer surface, wrong
Stream circulation fluid 70 produces turbulent flow and larger shear force faster in candle type filter element 9 radially-outer surface, to being attached to outside candle type filter element 9
The filter cake on surface carries out cross-flow cleaning, delays gathering way of filter cake thickness, improves the rate of filtration and the filtration of candle filter
Flow.
Backwash phase process in concentration technology system and dry deslagging process system for the cross-current type candle filter is:
After carrying out filtering work for a period of time, candle type filter element 9 radially-outer surface still can produce cross-current type candle filter
Raw filter cake, the backwash stage of cross-current type candle filter can remove this filter cake.Back flush adopts special cleanout fluid 67, or
Person's back flush is using the clear filtrate 64 being delivered to upstream device.Open residual-gas valve 57 and backwash valve 65, cleanout fluid 67 enters
Backwash pump 66, backwash pump 66 promote cleanout fluid 67 pass through backwash valve 65, cleanout fluid 67 respectively through several according to
The technology controlling and process valve 62 of secondary opening and closing, cleanout fluid 67 respectively enters each filter element conflux grate part from several drain pipes 28
8 go out liquid conflux duct member collecting pipe 1 in, cleanout fluid 67 passes outwards through candle type filter element 9 from the inner chamber of candle type filter element 9
Gap enters in candle filter tank body 55, carries out back flush to the filter cake being attached to candle type filter element 9 outer surface, makes to be attached to
The filter cake of candle type filter element 9 outer surface comes off, and block filter cake fragment quickly sinks down into cross-current type candle filter bottom, and filter cake is broken
Piece and the non-filtrate of a part 73 are discharged candle filter tank body 55 through residual-gas valve 57 and are formed residual liquid 58.
Discharge phase process in concentration technology system for the cross-current type candle filter is:
After carrying out filtering work for a period of time, cross-current type candle filter bottom have accumulated one to cross-current type candle filter
The filter cake fragment of fixed number amount, opens drain valve 56, and filter cake fragment and the non-filtrate of a part 73 discharge candle formula mistake through drain valve 56
Filter tank body 55 forms concentrated solution.
Blowback discharging phase process in dry deslagging process system for the cross-current type candle filter is:
Filtration stage in dry deslagging process system for the cross-current type candle filter, non-filtrate in candle filter tank body 55
In 73, the concentration of impurity particle is gradually increased, and now closes cross-flow water circulating pump 69 and several cross-flow control valves 68, and it is right to stop
The filter cake being attached to candle type filter element 9 outer surface carries out cross-flow cleaning.Liquid feed valve 72, several technology controlling and process valves 62 and liquid valve 63
Still open, non-filtrate 73 goes successively in candle filter tank body 55, and continue across the gap of several candle type filter element 9
Enter inside candle type filter element 9, in non-filtrate 73 in candle filter tank body 55, impurity particle is attached to rapidly candle type filter element 9 outer surface
Form filter cake, close 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 residual liquid 58.Row
After non-filtrate 73 in empty candle filter tank body 55, close air bleeding valve 71 and residual-gas valve 57, open drain valve 56 and compressed gas
Body control valve 59, opens and closes several technology controlling and process valves 62 successively, and the compressed gas 61 from source of the gas flow from air accumulator 60
Go out, compressed gas 61 pass through compressed gas control valve 59, the work that compressed gas 61 open and close successively respectively through several
Skill control valve 62, compressed gas 61 go out liquid collecting pipe from what several drain pipes 28 respectively enterd each filter element conflux grate part 8
In the collecting pipe 1 of part, the gap that compressed gas 61 pass outwards through candle type filter element 9 from the inner chamber of candle type filter element 9 enters candle formula
In filter tank body 55, blowback discharging is carried out to the filter cake being attached to candle type filter element 9 outer surface, make to be attached to outside candle type filter element 9
The filter cake on surface comes off, and the block filter cake fragment being dried passes through residual liquid manifold 2 and drain valve 56, by cross-current type candle filter
The floss hole 1 of bottom is discharged.
Cross-current type candle filter can realize cross flow filter mode in concentration technology system and dry deslagging process system.
And in concentration technology system and dry deslagging process system, wash away, during the cross-flow cleaning of filtration stage, the bulk filter cake getting off broken
Piece, and during the back flush of backwash stage, wash away the bulk filter cake fragment getting off, can quickly sink down into cross-current type candle formula and filter
Device bottom, washes away in the non-filtrate 73 that the fritter filter cake fragment getting off remains suspended in candle filter tank body 55 simultaneously, should
Fritter filter cake fragment is re-attached to candle type filter element 9 outer surface together with the impurity particle in non-filtrate 73 and forms filter cake, makes filter
The voidage of cake layer increases, and improves the permeance property of cake layer, thus improving the rate of filtration and the filtering traffic of candle filter.
Claims (2)
1. a kind of cross-current type candle filter is it is characterised in that cross-current type candle filter includes upper tank body part, lower tank portion
Part, filter element conflux grate part(8), residual liquid manifold(2);Several filter element conflux grate parts(8)It is arranged in lower tank part,
Each filter element conflux grate part(8)On several candle type filter element are installed(9), upper tank body part is arranged on lower tank part
End, residual liquid manifold(2)It is arranged on lower tank lower;
Upper tank body part is from bottom to up successively by upper tank body flange(14), upper shell(15), ellipse head(16)Weld together,
Upper tank body member upper surface has feed tube(17), exhaustor(18), circulation drain pipe(19);
Lower tank part is from bottom to up successively by discharge pipe flange(3), delivery pipe(4), conical head(5), lower shell(10), under
Tank flange(13)Weld together, lower shell(10)Cylindrical, lower shell(10)Upper end side surface soldered has several to follow
Ring feed tube(23), each circulates feed tube(23)One end be located at lower shell(10)Radial outside, the other end is located at down
Cylinder(10)Radially inner side, positioned at lower shell(10)The circulation feed tube of radial outside(23)One end have flange, be located at down
Cylinder(10)The circulation feed tube of radially inner side(23)One end there is no flange;Lower shell(10)Lower end side surface soldered has some
Individual drain pipe(28), each drain pipe(28)One end be located at lower shell(10)Radial outside, the other end be located at lower shell
(10)Radially inner side, positioned at lower shell(10)The drain pipe of radial outside(28)One end have flange, positioned at lower shell(10)
The drain pipe of radially inner side(28)One end there is no flange;Lower shell(10)Side surface has a manhole(30);Each circulation
Feed tube(23)The lower shell on opposite(10)Radially inner side surface soldered has a upper fixed support(12), fixing on each
Frame(12)On be mounted on bolt(6);Each drain pipe(28)The lower shell on opposite(10)Radially inner side surface soldered has one
Individual lower fixed support(7), each lower fixed support(7)On be mounted on bolt(6);
Residual liquid manifold(2)Ringwise, residual liquid manifold(2)Radial outside surface soldered has a residual liquid pipe(29), residual liquid pipe
(29)Inner chamber and residual liquid manifold(2)Annular cavity communicates, residual liquid pipe(29)Lateral ends have residual liquid pipe flange(54), wrong
After the assembling of streaming candle filter, in residual liquid manifold(2)The lower end of annular cavity forms floss hole(1);
Filter element conflux grate part(8)Including a circulation fluid conflux duct member, one go out liquid and conflux duct member and several candle formulas
Filter element(9);Candle type filter element(9)In cylinder, candle type filter element(9)Lower end be filter element joint(75), filter element joint(75)In
Heart through hole and candle type filter element(9)Inside is connected, filter element joint(75)There are external screw thread, filter element lock nut(26)It is arranged on filter element
Joint(75)On, candle type filter element(9)Centre be cylindric filter medium, filter medium is screen casing, or filter medium is
Filter screen, or filter medium is filter cloth, candle type filter element(9)Upper end be filter element positioning end(76), filter element positioning end(76)Have outer
Screw thread, filter element location nut(11)It is arranged on filter element positioning end(76)On;
Go out the liquid duct member that confluxes and include collecting pipe fixed plate one(20), collecting pipe one(21), conflux pipe joint one(22)With some
Individual filter element union joint(27);Going out the conflux centre of duct member of liquid is collecting pipe one(21), collecting pipe(21)Cylindrical, conflux
Guan Yi(21)On have several collecting pipe welding holes one(53), collecting pipe(21)One end be welded with collecting pipe fixed plate one
(20), collecting pipe(21)The other end be welded with the pipe joint one that confluxes(22), several filter element union joints(27)It is welded on remittance
Flow tube welding hole one(53)In;
Collecting pipe fixed plate one(20)In cylinder, collecting pipe fixed plate one(20)Centre be cylindrical locating flange
(74), collecting pipe fixed plate one(20)One end have welding boss(52), weld boss(52)Insertion collecting pipe one(21)One
End radially inner side, makes collecting pipe fixed plate one(20)With collecting pipe one(21)Weld together;Collecting pipe fixed plate one(20)'s
The other end is connected plate(51), be connected plate(51)On have bolt of fixing plate hole(32);
Conflux pipe joint one(22)Cylindrical, conflux pipe joint one(22)One end have welding ring(49), welding ring(49)Insert
Enter collecting pipe one(21)Other end radially inner side, make the pipe joint one that confluxes(22)With collecting pipe one(21)Weld together;Converge
Flow tube joint one(22)Other end inner radial surface have o-ring groove(50), O-ring seals(31)It is arranged on sealing ring recessed
Groove(50)In;
Filter element union joint(27)Cylindrical, filter element union joint(27)Upper end be branch sleeve one(45), filter element union joint
(27)Lower end be branch sleeve two(46), filter element union joint(27)Centre be locating ring(47), branch sleeve(45)'s
Inner radial surface has branch sleeve female thread(48), branch sleeve two(46)Insertion collecting pipe one(21)Collecting pipe welding hole one
(53)In, make filter element union joint(27)With collecting pipe one(21)Weld together;
The circulation fluid duct member that confluxes includes collecting pipe fixed plate two(77), collecting pipe two(78), conflux pipe joint two(79)If with
Dry flow guide sleeve part, flow guide sleeve part includes flow guide sleeve(24), guide ring(25);Circulation fluid conflux duct member centre be converge
Flow tube two(78), collecting pipe two(78)Cylindrical, collecting pipe two(78)On have several collecting pipe welding holes two, collecting pipe two
(78)One end be welded with collecting pipe fixed plate two(77), collecting pipe two(78)The other end be welded with the pipe joint two that confluxes
(79), several flow guide sleeves(24)It is welded in collecting pipe welding hole two;Collecting pipe fixed plate two(77)In cylinder, collecting pipe
Fixed plate two(77)Centre be cylindrical locating flange(74), collecting pipe fixed plate two(77)One end have welding boss
(52), weld boss(52)Insertion collecting pipe two(78)One end radially inner side, make collecting pipe fixed plate two(77)With collecting pipe
Two(78)Weld together;Collecting pipe fixed plate two(77)The other end be connected plate(51), be connected plate(51)On
There is bolt of fixing plate hole(32);Conflux pipe joint two(79)Cylindrical, conflux pipe joint two(79)One end have welding ring
(49), welding ring(49)Insertion collecting pipe two(78)Other end radially inner side, make the pipe joint two that confluxes(79)With collecting pipe two
(78)Weld together;Conflux pipe joint two(79)Other end inner radial surface have o-ring groove(50), O-ring seals
(31)It is arranged on o-ring groove(50)In;
Flow guide sleeve(24)Cylindrical, flow guide sleeve(24)Centre is flaring flow guide sleeve cone cylinder(36), flow guide sleeve(24)Upper
End is water conservancy diversion bell and spigot joint(35), flow guide sleeve(24)Lower end be flow guide sleeve straight tube(38), flow guide sleeve straight tube(38)Inner radial surface
Upper end have flow guide sleeve female thread(37), water conservancy diversion bell and spigot joint(35)Insertion collecting pipe two(78)Collecting pipe welding hole two in, make
Flow guide sleeve(24)With collecting pipe two(78)Weld together;
Guide ring(25)In annular, guide ring(25)Upper end be annular guide ring fixed cylinder(41), guide ring fixed cylinder
(41)Radially-outer surface have guide ring external screw thread(39), guide ring(25)Lower end be annular guide ring base plate(42), lead
Stream ring base plate(42)Centre is guide ring centre bore(44), guide ring base plate(42)Upper end face has several connection gussets
(43), connection gussets(43)Guide ring fixed cylinder(41)With guide ring base plate(42)Link together, in guide ring fixed cylinder
(41)Lower end and guide ring base plate(42)Upper end between formed radial direction annular space(34), guide ring base plate(42)Radially-outer surface
There are several axially position muscle(40);
During the assembling of flow guide sleeve part, by guide ring external screw thread(39)With flow guide sleeve female thread(37)Engagement, guide ring
(25)It is fixed on flow guide sleeve(24)Inner chamber;After the assembling of flow guide sleeve part, in guide ring base plate(42)Radially-outer surface with lead
Stream set straight tube(38)Form axial annular space between the lower end of inner radial surface(33);
Filter element conflux grate part(8)During assembling, several candle type filter element(9)By filter element joint(75)With filter element lock nut
(26)Candle type filter element(9)It is fixed on filter element union joint(27)Branch sleeve female thread(48)In;Several candle type filter element(9)
Filter element positioning end(76)Insertion guide ring centre bore(44), filter element location nut(11)It is arranged on filter element positioning end(76)
On, and make filter element location nut(11)Positioned at flow guide sleeve(24)Inner chamber;Filter element conflux grate part(8)After assembling, circulation fluid confluxes
Duct member, go out liquid and conflux duct member and several candle type filter element(9)Link together;
During the assembling of cross-current type candle filter, several filter element conflux grate parts(8)It is arranged in lower tank part, make some
Individual circulation feed tube(23)Positioned at lower shell(10)One end of radially inner side is inserted circulation fluid and is confluxed the pipe joint that confluxes of duct member
Two(79)Interior, make several drain pipes(28)Positioned at lower shell(10)One end of radially inner side is inserted out liquid and is confluxed the remittance of duct member
Flow tube joint one(22)Interior, make bolt(6)Through bolt of fixing plate hole(32), the conflux collecting pipe of duct member of circulation fluid is fixed
Plate two(77)It is arranged on fixed support(12)On, conflux the collecting pipe fixed plate one of duct member going out liquid(20)It is arranged on lower solid
Fixed rack(7)On;Upper tank body part is arranged on lower tank component upper ends, residual liquid manifold(2)It is arranged on lower tank lower,
Use drain valve(56)Residual liquid manifold(2)It is fixed on the discharge pipe flange of lower tank lower(3)On.
2. a kind of cross-current type candle filter according to claim 1 is it is characterised in that cross-current type candle filter is dense
Main technique cyclic process in contracting process system is:Filtration stage, backwash stage, discharge phase;
Main technique cyclic process in dry deslagging process system for the cross-current type candle filter is:Filtration stage, backwash rank
Section, blowback discharging phase;
Filtration stage process in concentration technology system and dry deslagging process system for the cross-current type candle filter is:
Non- filtrate(73)Through liquid feed valve(72)By feed tube(17)Enter candle filter tank body(55)Interior, non-filtrate(73)Point
Chuan Guo not several candle type filter element(9)Gap enter candle type filter element(9)Inside, non-filtrate(73)Via filter element joint(75)'s
Central through hole flows into out liquid and confluxes the collecting pipe one of duct member(21)In, non-filtrate(73)Through the pipe joint one that confluxes(22)By going out
Liquid pipe(28)Discharge candle filter tank body(55), non-filtrate(73)Again respectively through several technology controlling and process valves(62), do not filter
Liquid(73)From liquid valve(63)Flow to upstream device and form clear filtrate(64);Non- filtrate(73)In impurity particle be then intercepted at
Candle type filter element(9)Outer surface formed filter cake;
Cross-current type candle filter, while carrying out filtering work, opens and closes several cross-flow control valves successively(68),
Candle filter tank body(55)The non-filtrate of an interior part(73)Enter circulation drain pipe(19)Form cross-flow circulation fluid(70), wrong
Stream circulation fluid(70)Enter cross-flow water circulating pump(69)Interior, cross-flow water circulating pump(69)Promote cross-flow circulation fluid(70)Respectively through
Several cross-flow control valves opening and closing successively(68), cross-flow circulation fluid(70)Circulate feed tube from several(23)Respectively
Enter each filter element conflux grate part(8)Circulation fluid conflux the collecting pipe two of duct member(78)In, cross-flow circulation fluid(70)Point
Not Jing Guo several flow guide sleeve parts, cross-flow circulation fluid(70)Respectively through radial direction annular space(34)With axial annular space(33), cross-flow
Circulation fluid(70)By axial annular space(33)Enter candle filter tank body(55)Interior, form a closed circuit, cross-flow circulation fluid
(70)In candle type filter element(9)Radially-outer surface axially flows, cross-flow circulation fluid(70)In candle type filter element(9)Radially-outer surface
Produce turbulent flow and larger shear force faster, to being attached to candle type filter element(9)The filter cake of outer surface carries out cross-flow cleaning;
Backwash phase process in concentration technology system and dry deslagging process system for the cross-current type candle filter is:
Cross-current type candle filter carry out a period of time filter work after, candle type filter element(9)Radially-outer surface still can produce
Filter cake, the backwash stage of cross-current type candle filter can remove this filter cake;Back flush adopts special cleanout fluid(67), or
Person's back flush is using the clear filtrate being delivered to upstream device(64);Open residual-gas valve(57)And backwash valve(65), cleanout fluid
(67)Enter backwash pump(66), backwash pump(66)Promote cleanout fluid(67)Through backwash valve(65), cleanout fluid
(67)The technology controlling and process valve opening and closing successively respectively through several(62), cleanout fluid(67)From several drain pipes(28)
Respectively enter each filter element conflux grate part(8)The liquid that goes out conflux the collecting pipe one of duct member(21)In, cleanout fluid(67)From candle
Formula filter element(9)Inner chamber pass outwards through candle type filter element(9)Gap enter candle filter tank body(55)Interior, to being attached to candle formula
Filter element(9)The filter cake of outer surface carries out back flush, makes to be attached to candle type filter element(9)The filter cake of outer surface comes off, the filter of bulk
Cake fragment quickly sinks down into cross-current type candle filter bottom, filter cake fragment and the non-filtrate of a part(73)Through residual-gas valve(57)
Discharge candle filter tank body(55)Form residual liquid(58);
Discharge phase process in concentration technology system for the cross-current type candle filter is:
After carrying out filtering work for a period of time, cross-current type candle filter bottom have accumulated a fixed number to cross-current type candle filter
The filter cake fragment of amount, opens drain valve(56), filter cake fragment and the non-filtrate of a part(73)Through drain valve(56)Discharge candle formula
Filter tank body(55)Form concentrated solution;
Blowback discharging phase process in dry deslagging process system for the cross-current type candle filter is:
Filtration stage in dry deslagging process system for the cross-current type candle filter, candle filter tank body(55)Inside non-filtrate
(73)The concentration of middle impurity particle is gradually increased, and now closes cross-flow water circulating pump(69)With several cross-flow control valves(68),
Stop to being attached to candle type filter element(9)The filter cake of outer surface carries out cross-flow cleaning;Liquid feed valve(72), several technology controlling and process valves
(62)And liquid valve(63)Still open, non-filtrate(73)Go successively to candle filter tank body(55)Interior, and if continuing across
Dry candle type filter element(9)Gap enter candle type filter element(9)Inside, candle filter tank body(55)Inside non-filtrate(73)Middle impurity
Granule is attached to rapidly candle type filter element(9)Outer surface forms filter cake, closes liquid feed valve afterwards(72), several technology controlling and process valves
(62)And liquid valve(63);Open air bleeding valve(71)And residual-gas valve(57), candle filter tank body(55)Interior non-filtrate(73)
Through residual-gas valve(57)Discharge candle filter tank body(55)Form residual liquid(58);Emptying candle filter tank body(55)Interior not
Filtrate(73)Afterwards, close air bleeding valve(71)And residual-gas valve(57), open drain valve(56)With compressed gas control valve(59), successively
Open and close several technology controlling and process valves(62), from the compressed gas of source of the gas(61)From air accumulator(60)Flow out, compressed gas
Body(61)Through compressed gas control valve(59), compressed gas(61)The technique control opening and closing successively respectively through several
Valve processed(62), compressed gas(61)From several drain pipes(28)Respectively enter each filter element conflux grate part(8)Go out liquid converge
The collecting pipe one of flow tube part(21)In, compressed gas(61)From candle type filter element(9)Inner chamber pass outwards through candle type filter element(9)'s
Gap enters candle filter tank body(55)Interior, to being attached to candle type filter element(9)The filter cake of outer surface carries out blowback discharging, makes attached
In candle type filter element(9)The filter cake of outer surface comes off, and the block filter cake fragment being dried passes through residual liquid manifold(2)And drain valve
(56), by the floss hole of cross-current type candle filter bottom(1)Discharge.
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CN107970676A (en) * | 2017-12-11 | 2018-05-01 | 扬州市康嵩达机电设备有限公司 | Tobacco extract double-cylinder type micro-filtration |
CN110975373A (en) * | 2019-12-12 | 2020-04-10 | 丹阳市恒雅光学眼镜设备有限公司 | Candle type clarifying filter and method for treating sewage by using same |
CN111701315A (en) * | 2020-06-10 | 2020-09-25 | 江苏兴科制药设备制造有限公司 | Residue-free candle type filtering system |
CN113713491B (en) * | 2021-07-30 | 2023-03-03 | 成都思达能环保设备有限公司 | Filter element mounting structure and filter device comprising same |
CN115253464B (en) * | 2022-07-28 | 2024-03-05 | 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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CN2677003Y (en) * | 2004-02-13 | 2005-02-09 | 中国石油化工股份有限公司 | Multpipe filter |
CN201988250U (en) * | 2011-03-21 | 2011-09-28 | 福建省泉州市江南冷却器厂 | Sequentially-unloading candle filter |
CN102527091A (en) * | 2012-02-02 | 2012-07-04 | 常熟市上海飞奥压力容器制造有限公司 | Liquor condensate filter |
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