CN101415476B - Method and apparatus for recovering solid component - Google Patents
Method and apparatus for recovering solid component Download PDFInfo
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- CN101415476B CN101415476B CN2006800541858A CN200680054185A CN101415476B CN 101415476 B CN101415476 B CN 101415476B CN 2006800541858 A CN2006800541858 A CN 2006800541858A CN 200680054185 A CN200680054185 A CN 200680054185A CN 101415476 B CN101415476 B CN 101415476B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/073—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
- B01D33/76—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes
Abstract
A solid content recovering apparatus that prevents gas leakage from a pressure filter to its low-pressure side, realizing saving of power cost, and that avoids adverse influences of the pressure gas of the pressure filter on solid content discharge means and various devices disposed downstream thereof.; There is provided solid content recovering apparatus (20) comprising pressure filter (21) capable of filtering slurry (S) under pressure gas to thereby separate the same into wet cake (C) and liquid; a discharge channel for discharging of the wet cake (C) separated by the pressure filter (21);and, disposed along the discharge channel and used for discharging of the wet cake (C), first rotary valve (23), buffer tank (24) and second rotary valve (25), wherein deposition means (28) for deposition of the wet cake (C) is positioned upstream of the first rotary valve (23) and disposed on the discharge channel, so that the pressure gas within the pressure filter (21) is blocked from the first rotary valve (23) by means of the deposition layer of wet cake (C) within the deposition means (28).
Description
Technical field
The present invention relates to the retracting device of solid constituent and the recovery method of solid constituent; More particularly, relate to can with after state the solid constituent self-pressurization, filter environment and be fetched into the retracting device of the solid constituent under the atmospheric pressure environment and the recovery method of solid constituent swimmingly.Aforesaid solid constituent is that the slurry (slurry) that for example will contain solid constituents such as crystallization pressurizes, filters and obtains.
Background technology
As this kind technology in the past, for example known have a technology described in the patent documentation 1.Technology described in the patent documentation 1 relates to method and the device that reclaims crystallization from slurry, and its major part is roughly as shown in Figure 2.
For example shown in Figure 2, crystallization retracting device in the past comprise with slurry S pressurization, filter and obtain to contain the adding pressure type filter 1 of the wet cake (wet cake) (not shown) of crystallization (solid constituent), wet cake self-pressurization formula filter is fetched into downstream atmospheric pressure side revolving valve 2 and under the atmospheric pressure in revolving valve 2 downstreams the drying machine (not shown) of dry wet filter cake.In addition, also exist to substitute revolving valve and 2 ball valves for example are set as gate, the method for utilizing pressure differential and deadweight to take out wet cake.
For example shown in Figure 2; Adding pressure type filter 1 comprises that the slurry that is connected with the supply pipe 1A of slurry stockpiles the 1B of portion, a part and impregnated in that this slurry stockpiles the 1B of portion and whole peripheral surface has the rotary drum 1C of filter materials, stockpiles housing 1D that the 1B of portion forms pressurization space around rotary drum 1C with slurry, is connected in housing 1D and in housing 1D, supplies with the gas supply pipe 1E of gas-pressurized inert gases such as () nitrogen and be used to pressurize, filter the peeling member (not shown) that slurry stockpiles the slurry S in the 1B of portion and peels off the wet cake that is formed at rotary drum 1C surface from the gas-pressurized of gas supply pipe 1E, and the filter cake drain passageway 1F that oneself is connected in housing 1D with wet cake shown in hollow arrow is discharged to revolving valve 2.Though not shown, the adding pressure type filter also comprises the cleaning part of pipe arrangement that reclaims the filtrating in the rotary drum 1C and the wet cake that cleans rotary drum 1C surface.
So as stated, revolving valve 2 is configured between the drying machine under adding pressure type filter 1 and the atmospheric pressure, under the airtight state in the housing 1D that keeps adding pressure type filter 1 wet cake self-pressurization formula filter 1 is fetched into atmospheric pressure side.
But, under the situation of crystallization retracting device shown in Figure 2, have such problem; That is, revolving valve 2 also maximizes when plant equipment maximizes, and the space break-in facility of revolving valve 2 reduces; When self-pressurization formula filter 1 took out wet cake, the gas in the housing 1D leaked.As the improvement of this problem technology, for example known have patent documentation 2 described technology.The technology of patent documentation 2 relates to method and the device that reclaims crystallization from slurry, and this device is roughly as shown in Figure 3.
It comprises slurry S is pressurizeed; Filter and the adding pressure type filter 11 of acquisition wet cake; Take out the 1st revolving valve 12 of wet cake from this adding pressure type filter 11; 12; The temporary transient storage utilized these the 1st revolving valves 12; The surge tank (buffer tank) 13 of the wet cake of 12 taking-ups; 13; With these surge tanks 13; Pressure in 13 is adjusted into atmospheric booster (booster) 14; 14; With from by these boosters 14; 14 are adjusted into the surge tank 13 behind the atmospheric pressure; 13 take out the 2nd revolving valve 15 of wet cake; 15.In addition, owing to adding pressure type filter 11 constitutes with the benchmark that is configured to shown in Figure 2, therefore, omit explanation separately for the numbering of the part of correspondence filling 10 beginnings.In addition, Reference numeral 16 is the 1st conveying worms, and Reference numeral 17 is the 2nd conveying worms, and Reference numeral 18 is the pipe arrangements that connect housing 11D and booster 14.
As stated, the 2nd revolving valve 15,15 is keeping under the airtight state, and wet cake roughly is adjusted into atmospheric surge tank 13 and is discharged to atmospheric pressure side from being pressurized device 14,14.Therefore, the gas in the adding pressure type filter 11 can not leak into the downstream of the 2nd revolving valve 15,15, can the machines such as drying machine that be arranged at the downstream not had a negative impact.In addition, because gas leakage is utilized again, therefore, can practice thrift the use amount of the inert gas of pressurization usefulness.
Patent documentation 1: japanese kokai publication hei 11-179115
Patent documentation 2: TOHKEMY 2005-118754
But under the situation of patent documentation 2 described crystallization recovery methods and crystallization retracting device, in order to keep the airtight of adding pressure type filter 11, the 1st revolving valve 12,12 and the 2nd revolving valve 15,15 all need be made withstand voltage structure.And the 1st revolving valve 12,12 also maximizes when plant equipment maximizes, and the space break-in facility of the 1st revolving valve 12,12 reduces.Therefore there is such problem; Promptly; When utilizing the 1st revolving valve 12,12 to take out wet cake; Leakage rate from the 1st revolving valve 12,12 to the gas-pressurized of surge tank 13,13 increases, and therefore, is used for the pressure in the surge tank 13,13 is adjusted into the corresponding increase of power consumption of atmospheric booster 14,14.
Summary of the invention
The present invention makes in order to address the above problem; The retracting device of the solid constituent that its purpose is to provide such and the recovery method of solid constituent; Promptly; Prevent that gas self-pressurization formula filter from leaking to low-pressure side, when can practicing thrift power consumption, the gas-pressurized of adding pressure type filter can not have a negative impact to the discharge parts of solid constituent and the various machines that are disposed at its downstream.
The retracting device of technical scheme 1 described solid constituent of the present invention comprises the adding pressure type filter, the drain passageway of discharging the solid constituent after in this adding pressure type filter, separating that utilize gas-pressurized to filter slurry and solid constituent is separated with liquid component, be disposed at this drain passageway and discharge the discharge parts of above-mentioned solid constituent; It is characterized in that; The upstream side ground that makes the accumulation parts of piling up above-mentioned solid constituent be positioned at above-mentioned discharge parts is arranged at above-mentioned drain passageway with it, utilizes the accumulation horizon of the above-mentioned solid constituent of above-mentioned accumulation parts to block the gas-pressurized in the above-mentioned adding pressure type filter.
In addition; In technical scheme 1 described invention; The retracting device of technical scheme 2 described solid constituents of the present invention is characterised in that; The analyzer of the height of measuring above-mentioned accumulation horizon is set, and, the control assembly of discharge rate of the above-mentioned solid constituent of above-mentioned discharge parts being controlled based on the measured value of said determination device is set.
In addition, in technical scheme 1 or 2 described inventions, the retracting device of technical scheme 3 described solid constituents of the present invention is characterised in that above-mentioned adding pressure type filter is rotary single chamber type filter.
In addition; In technical scheme 1～3 in each described invention; The retracting device of technical scheme 4 described solid constituents of the present invention is characterised in that, the discharge parts of above-mentioned solid constituent have the 1st revolving valve, temporary transient store the container that utilizes the above-mentioned solid constituent that the 1st revolving valve takes out and certainly this container take out the 2nd revolving valve of above-mentioned solid constituent.
In addition; The recovery method of technical scheme 5 described solid constituents of the present invention is in the adding pressure type filter of airtight construction; Under the condition of gas-pressurized pressurization, filter slurry and solid constituent is separated with liquid component; Utilization is disposed at that discharge parts in the drain passageway that the solid constituent after in above-mentioned adding pressure type filter, separating is discharged are discharged above-mentioned solid constituent and with its recovery; It is characterized in that, comprising: the operation of piling up above-mentioned solid constituent in the regulation zone of the above-mentioned drain passageway of above-mentioned discharge parts upstream side; Measure the operation of height of the accumulation horizon of above-mentioned solid constituent; Control the operation of the discharge rate of above-mentioned discharge parts based on the said determination result.
Adopt the present invention; The retracting device of such solid constituent and the recovery method of solid constituent can be provided; Promptly; Prevent that gas self-pressurization formula filter from leaking into low-pressure side, when can practicing thrift power consumption, the gas-pressurized of adding pressure type filter can not have a negative impact to the discharge parts of solid constituent and the various machines that are disposed at its downstream.
Description of drawings
Fig. 1 is the sketch map of an embodiment of expression frozen composition retracting device of the present invention.
Fig. 2 is a sketch map of representing the major part of solid constituent retracting device in the past.
Fig. 3 is a sketch map of representing the major part of another solid constituent retracting device in the past.
Description of reference numerals
20, the retracting device of solid constituent; 21, adding pressure type filter; 23, the 1st revolving valve (discharge parts); 24, surge tank (container); 25, the 2nd revolving valve; 28, pile up parts; 30, height finder; 31, the 1st controller (control assembly).
The specific embodiment
Below, based on embodiment explanation the present invention shown in Figure 1.In addition, Fig. 1 is the sketch map of an embodiment of expression frozen composition retracting device of the present invention.
As shown in Figure 1, the solid constituent retracting device 20 of this embodiment be included under the pressurized conditions filter slurry S and with solid constituent as wet cake C and certainly the adding pressure type filter 21 that separates of filtrating, be disposed at adding pressure type filter 21 drain passageway the 1st feeding screw 22, take out the wet cake C that utilizes the 1st feeding screw 22 self-pressurization formula filters 21 to supply with to come the 1st revolving valve 23, temporary transient store by 23 of the 1st revolving valves be fetched into the wet cake C of low-pressure side (atmospheric pressure side) surge tank 24, take out the 2nd revolving valve 25 of wet cake C and will supply to the 2nd feeding screw 27 of drying machine 26 from surge tank 24 by the wet cake C that the 2nd revolving valve 25 is taken out.
As shown in Figure 1; Adding pressure type filter 21 constitutes so rotary single chamber type filter; Promptly; The supply pipe 21A, the slurry that comprise slurry stockpile the 21B of portion, rotary drum 21C, housing 21D, gas supply pipe 21E and filter cake drain passageway 21F, and wet cake C is discharged to the 1st feeding screw 22 from filter cake drain passageway 21F.In addition, in Fig. 1, Reference numeral 21G is slurry stockpiles the 21B of portion overflow from slurry a pipe arrangement.
And, as shown in Figure 1, in this embodiment, be provided with the wet cake C that comes is supplied with in accumulation from the 1st feeding screw 22 accumulation parts 28 in the drain passageway between the 1st feeding screw 22 and the 1st revolving valve 23.These accumulation parts 28 comprise that accumulation has the accumulation pipe 28A of wet cake C and wet cake C is stayed the ball valve 28B in the accumulation pipe 28A.Utilization is deposited in the wet cake C among the accumulation pipe 28A that forms a drain passageway part, and the drain passageway of adding pressure type filter 21 is blocked with respect to the 1st revolving valve 23, has the bubble-tight sealing function that keeps in the adding pressure type filter 21.Thus, block insufficiently, also can suppress or prevent that the gas-pressurizeds in the adding pressure type filter 21 from leaking from the 1st revolving valve 23 even be piled up in the pressure of the wet cake C that piles up pipe 28A.In addition, through preventing that gas-pressurized self-pressurization formula filter 21 from leaking the use amount that can practice thrift gas-pressurized.
Thereby, because the 1st revolving valve 23 does not require the air-tightness of height, therefore, can in the 1st revolving valve 23, adopt the bubble-tight structure that can alleviate between its moving blade and the shell (casing), can alleviate wearing and tearing between the two whereby.Ball valve 28B closes when making wet cake C be deposited in the accumulation pipe 28A, is utilizing the 1st revolving valve 23 when piling up pipe 28A taking-up wet cake C, to open.Thereby when entry into service, ball valve 28B is controlled as, in the adding pressure type filter 21 running stipulated times and wet cake C is piling up the stage of having piled up ormal weight in the pipe 28A and opens.
In addition, in piling up pipe 28A, height finder 30 is installed, utilizes this height finder 30 often to measure and pile up the accumulation horizon height of managing the wet cake C in the 28A.On height finder 30, be connected with the 1st controller 31; The 1st controller 31 is based on the rotary speed of controlling the 1st revolving valve 23 from the measured signal of height finder 30; Regulate the discharge rate of piling up the wet cake C in the pipe 28A whereby, with piling up the height that the wet cake C that manages in the 28A maintains regulation.
Thereby if pile up the piling height that wet cake C in the pipe 28A is higher than regulation, then the 1st controller 31 is based on increasing the discharge rate of wet cake C from the measured signal of height finder 30, thereby is adjusted to the piling height of regulation.Otherwise if wet cake C is lower than the regulation piling height, then the 1st controller 31 is based on reducing the discharge rate of wet cake C from the measured signal of height finder 30, thereby is adjusted to the regulation piling height.Like this, the 1st controller 31 maintains constant height based on the wet cake C that will pile up pipe 28A from the measured signal of height finder 30 all the time, makes the sealing function stabilisation of wet cake C.
But; Owing to utilize accumulation parts 28 fully to seal comparatively difficulty of adding pressure type filter 21, therefore, which kind of degree tolerable gas leaked into carried out various researchs; As a result, judging quantity of gas leakage will be according to the pressure of gas-pressurized, the bore of piling up pipe 28A, the moisture content of wet cake C.Also judge,, preferably quantity of gas leakage is set at 10Nm each machine that is disposed at the 1st revolving valve 23 downstreams being had a negative impact in order to prevent
3/ minute below the time, for the leakage rate with gas is suppressed at 10Nm
3/ minute below, the piling height that preferably will pile up the wet cake C in the parts 28 is set at about 1500mm.
In addition, surge tank 24 is the closed containers that temporarily stockpile the wet cake C that utilizes 23 discharges of the 1st revolving valve.This surge tank 24 also has under the situation of the sealing mechanism contingency breakage of piling up parts 28, the temporary transient effect that stores the gas of revealing from the 1st revolving valve 23.The pressure detector 32 that detects gas leakage pressure is installed in this surge tank 24, on this pressure detector 32, is connected with the 2nd controller 33.And, on surge tank 24, be connected with gas outlet pipe 34, the valve 35 that drives by the 2nd controller 33 is installed in this gas outlet pipe 34.The 2nd controller 33 makes 25 startings of the 2nd revolving valve based on the detection signal from pressure detector 32 or stops.In addition, when pressure detector 32 detected the pressure more than the atmospheric pressure, the 2nd controller 33 was opened the valve 35 of discharge pipe 34 based on its detection signal, makes in the surge tank 24 and reverts to atmospheric pressure.Like this; Even the pressure of the gas leakage in the surge tank 24 is more than or equal to atmospheric pressure; Also can utilize the work of pressure detector 32 and the 2nd controller 33 to make the pressure in the surge tank 24 revert to atmospheric pressure; Thereby can prevent the gas from leaking to the downstream, prevent reliably the 2nd feeding screw 27 and drying machine 26 are had a negative impact.In addition, Reference numeral 36D is the washer (scrubber) that is installed on the discharge pipe 34.
The solid constituent recovery method of the solid constituent retracting device 20 that uses this embodiment then, is described with reference to Fig. 1.Solid constituent retracting device 20 drives, with inert gases such as nitrogen in gas supply pipe 21E supplies to housing 21D, to pressurizeing in the housing 21D.Under this state when slurry supply pipe 21A supplies with slurry S, the part of rotary drum 21C is immersed in the liquid level that slurry stockpiles the slurry S in the 21B of portion.
When the part of rotary drum 21C is immersed in the liquid level of slurry S; In rotary drum 21C is during the arrow labeled direction rotation; Under by the condition of gas-pressurized pressurization, in rotary drum 21C, filter slurry S, and reclaim solid constituent as wet cake C on the surface of rotary drum 21C.During the rotary drum 21C rotation, in cleaning the zone, clean after the wet cake C, arrive stripping area, utilize peeling member to peel off wet cake C from rotary drum 21C.The rotary drum 21C of being stripped from wet cake C arrives the liquid level of slurry S, repeats above-mentioned pressure filtration and cleaning.On the other hand, the filtrating in the rotary drum 21C is discharged to outside the rotary drum 21.
Wet cake C under rotary drum 21C peels off is in filter cake drain passageway 21F is fed into the 1st feeding screw 22.The 1st feeding screw 22 supplies to wet cake C the accumulation pipe 28A that piles up parts 28.At this moment, close owing to pile up the ball valve 28B of parts 28, therefore, wet cake C be deposited in pile up in the pipe 28A in, prevent that gas-pressurized from leaking into the 1st revolving valve 23 sides.When wet cake C was stacked into the height of sealing adding pressure type filter 21 in piling up pipe 28A, when the ball valve 28B that piles up parts 28 opened, the 1st revolving valve 23 drove, and the wet cake C that under atmospheric pressure, will pile up in the pipe 28A is discharged to surge tank 24.Pile up certainly pipe 28A discharge wet cake C during in, adding pressure type filter 21 replenishes wet cake C in piling up pipe 28A.Like this, pile up parts 28 sealing adding pressure type filters 21 owing to utilize, therefore, air-tightness reduces even the 1st revolving valve 23 maximizes, and gas-pressurized can not leak into surge tank 24 sides from the 1st revolving valve 23 sides yet.
During this period, the wet cake C that piles up in the pipe 28A is often monitored by height sensor 30.If wet cake C is higher than the piling height of regulation, then the 1st controller 31 is based on working from the measured signal of height finder 30, increase the 1st revolving valve 23 wet cake C discharge rate and be adjusted to the piling height of regulation.Otherwise if wet cake C is lower than the piling height of regulation, then the 1st controller 31 is based on working from the measured signal of height finder 30, reduce the 1st revolving valve 23 wet cake C discharge rate and be adjusted to the piling height of regulation.Like this, maintain constant height all the time, make the sealing function stabilisation of wet cake C through the wet cake C that will pile up pipe 28A.
When the 1st revolving valve 23 will be piled up the wet cake C of pipe in the 28A and be discharged to surge tank 24 under atmospheric pressure, the 2nd revolving valve 25 was discharged to the 2nd feeding screw 27 with the wet cake C in the surge tank 24 under atmospheric pressure.The 2nd feeding screw 27 supplies to drying machine 26 with wet cake C, dry wet filter cake C in drying machine 26 and with its supply to the back operation.Thereby the gas-pressurized of adding pressure type filter 21 can not leak into the downstream from the 1st revolving valve 23, can the 2nd feeding screw 27, the drying machine 26 that be arranged at the 1st revolving valve 23 downstreams not had a negative impact.
But just in case the sealing function of thereby destruction accumulation parts 28 former because of certain, when the gas-pressurized of adding pressure type filter 21 leaked into surge tank 24 from the 1st revolving valve 23, the pressure in the surge tank 24 was more than or equal to atmospheric pressure.At this moment, in surge tank 24, pressure detector 32 detects the above pressure of atmospheric pressure, and this detection signal is sent to the 2nd controller 33.The 2nd controller 33 is opened the valve 35 of blast pipe 34 automatically and is discharged the gas in the surge tank 24 based on detection signal, makes in the surge tank 24 and reverts to atmospheric pressure.In addition; Even surge tank 24 internal cause gas leakages and more than or equal to atmospheric pressure; The work of the 2nd controller 33 also capable of using is discharged gas leakages and moment reverts to atmospheric pressure from discharge pipe 34, and therefore, the 2nd revolving valve 25 can continue from surge tank 24 discharge wet cake C hardly with stopping.Thereby, even pile up the sealing function of parts 28, can prevent that also gas-pressurized from leaking into its downstream from surge tank 24 just in case be destroyed, prevent reliably each machine in surge tank 24 downstreams is had a negative impact.
As stated; Adopt this embodiment; Because three operations stating after comprising, can utilize the accumulation horizon of piling up the wet cake C in the parts 28 to block the gas-pressurized of adding pressure type filter 21 and seal, therefore with respect to the 1st revolving valve 23; Gas-pressurized can or not have a negative impact to the machine in its downstream from the downstream that leaks into of the 1st revolving valve 23.At this moment; Owing to can control the discharge rate of wet cake C based on the mensuration result of height finder 30 from the 1st revolving valve 23; The accumulation horizon height of the wet cake C that piles up parts 28 is maintained constant, therefore, can makes the break-in facility stabilisation of pressure type filter 21 through accumulation horizon.And, leak owing to can prevent gas-pressurized self-pressurization formula filter 21, therefore, can practice thrift the use amount of gas-pressurized.Aforesaid three operations comprise: in adding pressure type filter 21; Under the condition of gas-pressurized pressurization, filter slurry S and wet cake C is separated with liquid component; Utilization is disposed at the 1st revolving valve 23 in the drain passageway that the wet cake C after in adding pressure type filter 21, separating is discharged back and forth during hygroscopic filter cake C, the operation of in the accumulation parts 28 of the 1st revolving valve 23 upstream sides, piling up wet cake C; Utilize height finder 30 to measure the operation of the accumulation horizon height of piling up the wet cake C in the parts 28; Control the operation of the discharge rate of the 1st revolving valve 23 based on the mensuration result of height finder 30.
In addition, self-evident, the present invention is not had any restriction by above-mentioned embodiment.In this embodiment, used the 1st, the 2nd revolving valve and surge tank of a cover, but self-evident, also can constitute them by two covers.Through the taking-up circuit that makes wet cake C is two covers, even the adding pressure type filter maximizes, also can suppress the maximization of revolving valve etc.In a word; As long as solid constituent retracting device of the present invention has such structure; That is, the accumulation parts of solid constituent are set between adding pressure type filter and discharge parts, the solid constituent of the accumulation of utilization accumulation parts seals the gas-pressurized of adding pressure type filter.In addition, as long as solid constituent recovery method of the present invention comprises this three operations: in the operation of the regulation zone of the solid constituent drain passageway of discharging parts upstream side accumulated solids composition; The operation of the height of the accumulation horizon of mensuration solid constituent; Based on measuring the operation that the result controls the discharge rate of discharging parts.
Industrial applicibility
The present invention can reclaim filtering slurry in the fields such as general chemistry industry, fertilizer industry, metal industry or food industry of solid constituent and utilize.
Claims (5)
1. the retracting device of a solid constituent; The drain passageway that this device comprises the adding pressure type filter that utilizes gas-pressurized to filter slurry and solid constituent is separated with liquid component, the solid constituent after will in this adding pressure type filter, separating is discharged, the discharge parts that are disposed at this drain passageway and discharge above-mentioned solid constituent; It is characterized in that
The upstream side ground that makes the accumulation parts of piling up above-mentioned solid constituent be positioned at above-mentioned discharge parts is arranged at above-mentioned drain passageway with it; Utilize the accumulation horizon of the above-mentioned solid constituent of the specified altitude that forms in the above-mentioned accumulation parts to block the gas-pressurized in the above-mentioned adding pressure type filter; Wherein, the accumulation horizon of the above-mentioned solid constituent of afore mentioned rules height has the required airtight sealing function that can keep in the above-mentioned adding pressure type filter.
2. the retracting device of solid constituent according to claim 1 is characterized in that,
The analyzer of the height of measuring above-mentioned accumulation horizon is set, and, the control assembly of discharge rate of the above-mentioned solid constituent of above-mentioned discharge parts being controlled based on the measured value of said determination device is set.
3. the retracting device of solid constituent according to claim 1 and 2 is characterized in that,
Above-mentioned adding pressure type filter is rotary single chamber type filter.
4. the retracting device of solid constituent according to claim 1 and 2 is characterized in that,
The discharge parts of above-mentioned solid constituent have the 1st revolving valve, temporary transient store the container that utilizes the above-mentioned solid constituent that the 1st revolving valve taken out and certainly this container take out the 2nd revolving valve of above-mentioned solid constituent.
5. the recovery method of a solid constituent; This method is in the adding pressure type filter of airtight construction; Under the condition of gas-pressurized pressurization, filter slurry and solid constituent is separated with liquid component; Utilization is disposed at discharge parts in the drain passageway that the solid constituent after in above-mentioned adding pressure type filter, separating is discharged and discharges above-mentioned solid constituent and with its recovery, it is characterized in that
Comprise:
The operation of piling up the above-mentioned solid constituent of specified altitude in the regulation zone of the above-mentioned drain passageway of above-mentioned discharge parts upstream side;
Measure the operation of height of the accumulation horizon of above-mentioned solid constituent;
Control the discharge rate of above-mentioned discharge parts based on the said determination result, and make the operation of the above-mentioned solid constituent maintenance afore mentioned rules height of piling up in the afore mentioned rules zone,
Wherein, the above-mentioned solid constituent of afore mentioned rules height has the required airtight sealing function that can keep in the above-mentioned adding pressure type filter.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2006/319002 WO2008038335A1 (en) | 2006-09-25 | 2006-09-25 | Solid content recovering apparatus and method of recovering solid content |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101415476A CN101415476A (en) | 2009-04-22 |
| CN101415476B true CN101415476B (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800541858A Active CN101415476B (en) | 2006-09-25 | 2006-09-25 | Method and apparatus for recovering solid component |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPWO2008038335A1 (en) |
| CN (1) | CN101415476B (en) |
| WO (1) | WO2008038335A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2484879C2 (en) * | 2008-10-30 | 2013-06-20 | Годфрен | Device to extract sediments of disc pressure filtration and appropriate method of extraction |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5362403A (en) * | 1989-12-29 | 1994-11-08 | Martin Dosoudil | Filtration apparatus and method for discharging filter cake from a filtration apparatus |
| WO2005037401A1 (en) * | 2003-10-20 | 2005-04-28 | Mitsubishi Kakoki Kaisha, Ltd. | Solid content recovery system and solid content recovery method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI109578B (en) * | 1998-10-27 | 2002-09-13 | Outokumpu Oy | Devices for removing material from pressurized room |
-
2006
- 2006-09-25 JP JP2008536216A patent/JPWO2008038335A1/en active Pending
- 2006-09-25 WO PCT/JP2006/319002 patent/WO2008038335A1/en active Application Filing
- 2006-09-25 CN CN2006800541858A patent/CN101415476B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5362403A (en) * | 1989-12-29 | 1994-11-08 | Martin Dosoudil | Filtration apparatus and method for discharging filter cake from a filtration apparatus |
| WO2005037401A1 (en) * | 2003-10-20 | 2005-04-28 | Mitsubishi Kakoki Kaisha, Ltd. | Solid content recovery system and solid content recovery method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101415476A (en) | 2009-04-22 |
| JPWO2008038335A1 (en) | 2010-01-28 |
| WO2008038335A1 (en) | 2008-04-03 |
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