• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Method of and apparatus for clarifying a contaminated liquid by pumping unclarified liquid through a primary filter increasing the pressure drop across the filter until such pressure reaches a predetermined level. When the pressure reaches a predetermined level, the filtration operation is interrupted, the filtration system closed, and the filter cake accumulated on the primary filters is removed. The contents of the primary filter chamber are drained to a secondary filter chamber or desludger whereat the liquid bearing the dislodged filter cake suspension from the primary filters and additional filter aid media is re-circulated through a secondary filtration system forming a filter cake on the surface thereof and clarifying the contents of the primary filter chamber drawn thereinto. The liquid in the primary filter chamber, clarified thereby, is pumped through the mixing chamber of a pre-coat feeder whereat various filter cake forming media are added thereto. The clarified liquid bearing the suspended filter aids is pumped through the primary filter chamber for re-circulation through the primary filters to form a new filter cake on the surface thereof. When the new filter cake has been formed the filtration system is automatically placed on line to clarify the liquid passing therethrough.
    公开号:SU831052A3
    申请号:SU721849949
    申请日:1972-11-10
    公开日:1981-05-15
    发明作者:Савас Арванитакис Костас
    申请人:Айдрекс Инк (Фирма)；
    IPC主号:
    专利说明:

    (54) METHOD FOR CLEANING LIQUIDS
    The invention relates to the purification of a liquid, in particular to a filtering system, in which T1 is applied coarse and fine filtration. A known method of purifying a liquid is by passing it through a first-stage filter with removal of the clarified liquid and sediment, the latter being sent to the initial liquid, which is fed to the second-stage filter and removing the clarified liquid and sediment l. The disadvantage of this method is the low cleaning efficiency of the liquid and the duration of the process. The purpose of the invention is to eliminate: the above disadvantages. The goal is achieved by the fact that in the method of cleaning the liquid by passing it through the filter of the first stage with the removal of the clarified liquid and sediment, the latter is sent to the original liquid, which is fed to the filter of the second stage and the drain of the clarified liquid and sediment, the clarified liquid of the second filter the steps are mixed with an auxiliary filtering substance, followed by feeding the mixture to the filter of the first stage, and the precipitate is removed by the auger when heated and periodically adding an auxiliary filter to it rovalnogo substances. FIG. 1 shows the installation where the proposed method is carried out, general view; in fig. 2 filter first step cleaning; in fig. 3 - filter second stage cleaning. The method is carried out as follows. . . The crude LMW | 1 pump pump bone 1 is fed to the filter 2 of the first cleaning stage, the check valve 3 mounted on the discharge pipe 4 ensures that the crude fluid passes in only one direction. Between the check valve 3 and the inlet of the filter pump 5, a valve 6 is installed to shut off the line for servicing. The pump 1 and the filter pump 5 are installed in series and supply the crude liquid to the filter chamber 7 of the first filter cleaning stage. Filter 2 includes a filter chamber 7, closed by a removable lid, the hermetic bottom of the filter chamber is closed by a conical element 8, into which the crude liquid flows; at the base of the element 8, an outlet 9 is made, connected to a branch pipe 10, through which materials pass into the filter 11 of the second purification stage. 1 Between the inlet 9 of the conical element 8 and the outlet 12 of the filter 11, a valve 13 is installed. The impure liquid enters the filter of the first cleaning stage and leaves the chamber 7 through the outlet 14 for subsequent recirculation or removal, or is sent to the feeder 15 to form filter sludge depending on a particular phase of the cycle. B, as a result of the action of pumps 1 and 5 in the filter chamber 7, there remains a pressure under the action of which the impure liquid escapes from the filter elements 16. When the unpurified liquid passes through the filter elements 16, contaminating impurities are retained on the pressed sludge, thereby limiting the passage through him fluid, gradually increasing the pressure necessary for the fluid to pass through the filters. When the pressure rises, the pressure switch is activated, which transfers the operation of the filtering system to replenish the spent sludge being deposited on the filter element 16. As the filter element 16 is rotated, the spent sludge is removed, which goes into a dehumidified state in chamber 7. To transfer the consumed filter medium, pump 1 filter pump 5 is turned off, and pump 17 of filter 11 and pump 18 of the feeder are actuated 15, Pump 17 removes fluid from sump 19 of filter 11 through a filter element. 20 through a branch pipe 21 on which a check valve is installed. When the contents of the filter of the first stage of purification remove through the outlet 9 in the filter of the second stage to the cleaning, suspended solids, particles and spent sludge accumulate on the filter element 20. During operation of us & 17 the pipe 21 is under excess pressure and creates excessive pressure on line 10 between the exit from the filter of the first stage of cleaning and the entrance to the filter of the second stage of cleaning. When the pumps 18 and 17 work together, the contents of the filter of the first cleaning stage are transferred to the sump 19 of the second cleaning filter. The pump 17 delivers fluid to the filter elements 20 through conduit 21 to the feeder 15 to form a filter layer. At the same time, the pump 18 pumps the contents of the feeder and supplies it to the filter chamber 7. The fluid cleaned in the filter of the second stage of purification enters the mixing chamber feeder 15. Then, a predetermined amount of auxiliary filtering powder is added to the mixing chamber, forming a slurry, which is fed into chamber 7, where it is mixed with the resulting sludge. This mixture then enters the second stage purification filter to form pressed sediment on the filter elements 20. A mixture of auxiliary powder and sludge forms a porous pressed precipitate protecting the filter element partition 20. After the liquid has recirculated through the closed-loop circulating the system, the filter element 16 is cleaned and prepared for the next cycle. The circulation time of the fluid is about 4-5 minutes, and the process of filling sludge on the filter elements 20 can be determined by monitoring the transparency of the fluid. After completion of the transfer phase, the pumps 17 and 18 and the drive of the filter elements 16 are turned off and pumps 5 and 18 are actuated. As the system was closed by the diaphragm valve 22, the fluid in the closed system was continuously recirculated through the mixing chamber of the feeder 15, through the chamber 7 and filter elements 20, where all. suspended and partially dissolved particles, as well as an auxiliary powder for filtration, accumulated on the filter elements 20, as a result of which the liquid was purified and ready for reuse. The pump 5 removes the clarified liquid from the tank 23, feeds its horses; Chesky element 8 and thereby creates a flow circulating through the filter element 16 again through the tank 23 and back through the pump 5 into the chamber 7, and thus forms an autonomous closed system circulation The pump 18 of the feeder supplies fluid from the mixing chamber to form a filter cake to the inlet of the filter chamber 7. To form a filter layer or a new pressed sediment on the filter element 16, the pump 18 of the feeder is activated, which forms a closed circulation system with the diaphragm valve system, including-j
    The feeder motor, under the action of which the stirrer 24 rotates and the screw 25 mounted in each of the hoppers 26, 27 and 28 with the auxiliary filtering powder, rotates.
    Due to the turbulence of the fluid flow in the mixing chamber of the feeder 15, sludge is formed which sucks the pump 1B into the filter chamber 8 to pass through the filter elements 16 where the auxiliary powder or medium is retained to pre-coat them to form a new sludge and the clarified liquid recycles through the mixing chamber of the feeder 15 When the predetermined amount of auxiliary powder for filtering is added to the mixing chamber, the bins are turned off And the pump 18 continues to operate, circulating fluid from the mixing chamber through the feeder pump feeder in the filter chamber 7. The fluid containing the secondary powder passes through the filter elements 16, the powder is delayed by a septum filter elements, and the recycle liquid iruet back through the mixing chamber. Recirculation continues until the filter elements 16 are completely covered with a filter bed and the mixing chamber is clean. Upon completion of the formation phase of the filter bed, the pump 18 is turned off, and the diaphragm valves return to their original position, i.e. the pump 5 remains turned on, and the pump 1 of the a switch is turned on to supply the contaminated liquid to the chamber 7 of the filter of the first cleaning stage for its clarification.
    When the light supplied by the pump 1 to the inlet of the filter chamber 7 is again brightened, the float valves of the second stage cleaning filter 11 and the mixing chamber of the feeder 15 forming the filter layer are provided ;. its passage, which is necessary to maintain the established level. both KctMepax. A line 29 located between the discharge pipe 4 and the line 10 provides for a partial circulation of fluid through the opening 9 during operation of the pump 1 to prevent clogging and clogging of the outlet openings of the line, as well as maintaining a continuous flushing action,
    The filter of the first stage of cleaning with the newly coated filter elements 16 is connected again, and the pump 1 supplies the clarification liquid to the chamber 7; The second-stage filter 11 automatically clears the accumulated sediment from the filter elements 20 at this moment and prepares the spent material or sludge for removal,
    The sludge is removed by the screw system, and when it is removed by the vertical G4 by screw 30, it passes through it with simultaneous heating, which is necessary due to the mechanical effect of the slag on
    5 sucks. Since, at the beginning of the cycle, the bed is still not in the vertical auger, some auxiliary powder is added to it in order to filter
    0 auger to form an initial plug in order to facilitate the removal of sludge. To form the plug, the auger is made with a portion in which there is no helix. A stopper of sludge formed in the helix-free area of the screw serves to squeeze the liquid from the solid particles. If there are several free areas on the vertical auger, the lower plugs
    .. perform the role of successive
    filters that remove suspended solids from the fluid passing through them.
    35
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    The method of cleaning fluid by passing it through the filter of the first stage with the discharge of the clarified liquid
    and sediment, the latter being sent to the initial liquid, which is fed to the filter of the second stage and the removal of the clarified liquid and sediment, characterized in that
    the purpose of increasing the degree of the liquid source due to the continuity of the process and its automation, the clarified liquid of the filter of the second stage is mixed with the auxiliary filtering substance followed by
    feeding the mixture to the filter of the first stage, and the precipitate is discharged by the screw during heating and periodically adding an auxiliary filtering substance to it.
    Sources of information taken into account in the examination
    1, Patent IT 3497452, cl.210-39, published. 1970.
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    类似技术:
    公开号 | 公开日 | 专利标题
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    同族专利:
    公开号 | 公开日
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    GB1406490A|1975-09-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB159525A|1919-08-23|1921-03-10|Charles Jeens Grace|Improvements relating to the drying of china clay and other solid matter|
    US1709349A|1924-03-24|1929-04-16|J M Lehmann Company Inc|Filter press|
    US2893925A|1957-04-19|1959-07-07|Vic Mfg Company|Method and apparatus for reclaiming solvent from a cleansing wash|
    NL294351A|1962-06-22|1900-01-01|
    US3135193A|1963-06-03|1964-06-02|Extraction Inc|Screw press|
    US3352763A|1964-12-17|1967-11-14|Noubar S Abdalian|Dry cleaning solvent purifying apparatus|
    US3497452A|1968-09-09|1970-02-24|Kostas Savas Arvanitakis|Method and apparatus for clarifying a liquid|US3907681A|1973-11-12|1975-09-23|F W Means & Company|Filter system and method|
    US3957636A|1974-03-06|1976-05-18|Kostas Savas Arvanitakis|Method and apparatus for liquid/solid separation|
    US4001115A|1974-06-21|1977-01-04|Kostas Savas Arvanitakis|Filtration system with storage and dilution reservoirs|
    US3959143A|1974-07-11|1976-05-25|Kostas Savas Arvanitakis|Apparatus for filtering cooking liquids|
    US4014790A|1975-09-30|1977-03-29|Kostas Savas Arvanitakis|Apparatus for recycling filtration media|
    DE2646693C2|1976-10-15|1987-05-07|Idrex, Inc., Frankfort, Ill., Us|
    US4145279A|1977-01-24|1979-03-20|Pure Cycle Corporation|Water recycling system|
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    US10071925B2|2016-08-31|2018-09-11|Conly L. Hansen|Induced sludge bed anaerobic reactor|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US23951972A| true| 1972-03-30|1972-03-30|
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