EP0118501A1 - Appareil et procede pour la fabrication d'engrais a partir de lisiers - Google Patents

Appareil et procede pour la fabrication d'engrais a partir de lisiers

Info

Publication number
EP0118501A1
EP0118501A1 EP83902809A EP83902809A EP0118501A1 EP 0118501 A1 EP0118501 A1 EP 0118501A1 EP 83902809 A EP83902809 A EP 83902809A EP 83902809 A EP83902809 A EP 83902809A EP 0118501 A1 EP0118501 A1 EP 0118501A1
Authority
EP
European Patent Office
Prior art keywords
container
tube
valve
solid
base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP83902809A
Other languages
German (de)
English (en)
Inventor
Adolf Dipl.-Ing. Voss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0118501A1 publication Critical patent/EP0118501A1/fr
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F3/00—Fertilisers from human or animal excrements, e.g. manure
    • C05F3/06—Apparatus for the manufacture
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B01D29/018—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements ring shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B01D29/05—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported
    • B01D29/055—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported ring shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
    • B01D29/605—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by level measuring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
    • B01D29/606—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by pressure measuring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
    • B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
    • B01D29/6476—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a rotary movement with respect to the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/70—Regenerating the filter material in the filter by forces created by movement of the filter element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/76—Handling the filter cake in the filter for purposes other than for regenerating
    • B01D29/80—Handling the filter cake in the filter for purposes other than for regenerating for drying
    • B01D29/84—Handling the filter cake in the filter for purposes other than for regenerating for drying by gases or by heating
    • B01D29/843—Handling the filter cake in the filter for purposes other than for regenerating for drying by gases or by heating by direct contact with a fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/92—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging filtrate
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock
    • Y02P20/145—Feedstock the feedstock being materials of biological origin

Definitions

  • the present invention is based on a device and a method for the production of solid fertilizer from liquid manure according to the German patent application P 29 43 962.1 and the additional application thereto.
  • the container in the device according to the aforementioned patent applications is a drivable B. concrete basin with a corrosion-resistant lining, rectangular in plan.
  • the object of the present invention lies in particular in the further development of the aforementioned prior art with regard to the device and method, in particular with regard to a simplification of the removal of the solid fertilizer and with regard to a reduction in the duration of the process.
  • the solution to the problem results from the features according to the patent claims.
  • the container is circular-cylindrical and in this form offers the possibility of manufacturing it from wound glass fiber reinforced plastic. Since this material itself is largely corrosion-resistant, there is no need for a special corrosion-resistant coating.
  • the solid fertilizer is removed from the side through an opening in the container wall either by peeling off the solid cake or by tapping off the solid in sectors.
  • the container can be designed with a regulating tube attached outside or with an axially built-in regulating tube. If the regulating tube is attached to the outside, it is possible to attach a filter tube centrally in the container.
  • the built-in control tube has the advantage that the risk of the liquid freezing in the control tube is avoided.
  • the initial formation of a solid cover in the container is measured with the aid of two electrodes which are immersed in the container filling.
  • the electrical resistance is measured with these electrodes. Since the electrical resistance changes in the course of the solidification of the filling compound, the point in time of a certain solidification of the filling compound can be recorded at will.
  • the finished solid can be removed automatically after the process has ended.
  • solids that have sunk to the bottom and clog the filter base can be loosened by blowing in compressed air (brief impacts).
  • Fig. 1 is a vertical section through a device according to the invention
  • Fig. 2 is a horizontal section on II of Fig. 1
  • 3 shows a vertical section through a container with a built-in regulating tube
  • FIG. 4 is a section on IV of Fig. 3;
  • FIG. 5 shows the bottom area of the container according to FIG. 3 on an enlarged scale.
  • a drain opening 14 is connected, which can be shut off by a bottom valve 15.
  • the container can be closed by a cover 11.
  • a filter base 16 (sieve base) is installed at a distance from the container base 10a.
  • the sieve bottom is rotatably held about the container axis and can be set in rotation by means of drive elements 17.
  • a filter tube 19 is installed upright in the space between the sieve bottom 16 and the cover, and openings 19a are provided in the lower area.
  • the filter tube 19 is concentrically surrounded by a cover tube 20 which, in the position shown, covers the openings 19a.
  • the openings can be opened by pulling up the cover tube 20.
  • the cover tube can also be installed in a rotatable manner. In this case, the openings 19a of the filter tube are released by turning the cover tube to bring the filter openings into alignment with corresponding openings in the cover tube.
  • closable ventilation openings 13 are provided in the container wall.
  • a vertical regulating tube 21 adjoins the intermediate space 25 next to the container.
  • the inflow to the control tube can be shut off by a valve 24.
  • a closable discharge opening 12 is provided in the container wall above the filter base 16, from which the solid fertilizer can be removed after the process has ended.
  • a measuring element 18 is shown schematically, which then sends an impulse to a control device 23 when a solid cover 1a has formed in the container as a result of a fermentation process.
  • the measuring element 18 also scans the height of this solid cover.
  • the measuring element 18 is a measuring element 22 in the control tube 21 supplied arranges by which the liquid level 2 in the control tube is measured.
  • the control device 23 is connected to the base valve 15 and causes this valve to be opened or closed. The process begins with the valve 24 being closed in front of the regulating tube 21 and water being filled into the space 25 approximately up to the level of the filter base 16.
  • the valve 15 is also closed.
  • the container is filled with manure, preferably with such a manure that has already been pretreated in a bio-gas plant.
  • the valve 24 is then opened so that liquid enters the control tube 21.
  • the container remains in this state for a few days until a fermentation process takes place, with the result that a solid layer 1a forms in the upper area of the manure.
  • the measuring element 18 then responds, gives a pulse to the control device 23, which causes the bottom valve 15 to open so that the liquid phase of the manure can run off.
  • the level 2 in the control pipe 21 drops.
  • the valve 15 is closed via the control device 23.
  • the solids cover 1 a then gradually sinks, which is registered by the measuring element 18 and entered into the control device 23.
  • the space 25 fills further with the liquid phase, which also results in an increase in the level in the control tube 21.
  • the valve 15 is automatically opened again. This process is repeated until the liquid phase of the Liquid manure has largely leaked and the solids have deposited on the filter base 16 in the form of a cake 1b.
  • Residual drying can now take place in that the filter openings 19a are exposed by pulling up the cover tube 20 so that further liquid phase can flow off through the openings 19a and further drying of the solid cake occurs.
  • the cover tube 20 When pulling the cover tube 20, the solid cake can dry in the middle area. In the outer area there is a
  • the removal can take place via the discharge opening 12, either by turning the solid cake 1b slowly and evenly and gradually peeling off the cake with a knife in the area of the discharge opening or by turning the cake intermittently and poking out one sector at a time. This also ensures that the solid cake is further aerated over a large area and dries off. This can also be supported by a fan.
  • the container according to FIG. 3 differs from the container according to FIG. 1 essentially in the built-in regulating tube 40. It is fixedly attached to the container bottom 32 in an upright position.
  • the control tube is connected to the space below the filter base 36 via a bypass line 41.
  • a measuring element 43 leads to the line, which can be shut off by a valve 42, with which With the help of the hydrostatic pressure in the bypass line 41 and thus in the space below the filter base 36 can be measured.
  • thermal insulation layer 33 Several layers are applied to the solid container bottom 32, namely a thermal insulation layer 33, one
  • the filter base 36 (sieve base) is rotatably supported on this layer with the aid of rollers 37.
  • the lower area of the regulating tube 40 is surrounded by a permanently installed protective tube 49.
  • the discharge opening 44 with discharge line is installed eccentrically in the container bottom.
  • the drain line can be opened or closed by a valve 45.
  • a hydrostatic measuring element 46 which measures the pressure over the filter base 36 according to FIG. 5, is coupled to the v. Valve 45.
  • a screw conveyor 50 is provided for discharging the solids after drying.
  • Two electrodes 47 are installed in the lid 31 of the container, which dip into the maximum level of the container filling and detect the electrical resistance of the filling. Since this electrical resistance changes in the course of the solidification of the filling compound, the two electrodes 47 can detect the point in time at which the filling compound has solidified in the upper area to such an extent that the liquid phase can be withdrawn by opening the valve 45 below.
  • An apparatus is operated essentially as follows. First, water is filled into the container, at least up to the level of the filter base 36. Then the liquid manure is pumped in via the nozzle 39 up to the maximum filling level. The valve 42 is then opened so that the same level is also set in the control tube 40. As soon as the pair of electrodes 47 has indicated the required initial solidification, the valve 45 is opened so that the liquid phase drains off. As soon as the liquid phase has completely expired and a pressure of zero is displayed on the measuring element 43, the valve 45 closes again. The liquid level has meanwhile dropped as the liquid phase drains and has reached a lower level, which is indicated by a corresponding pressure on the measuring element 46.
  • FIG. 4 shows a mechanical discharge device consisting of a paring knife 51 with a screw conveyor 50.
  • the paring knife 51 is attached to a folding device 52 which can be pivoted in a horizontal plane by means of a joint 53 on the container wall next to the discharge opening 30a.
  • a joint 53 on the container wall next to the discharge opening 30a.
  • Paring knife cut the fabric starting from the outside.
  • the dissolved substance is transported outside with the help of the screw conveyor.
  • the pivoting arrangement of the paring knife it can gradually be moved from the circumference of the container to its center, ie up to the protective tube 49.
  • the apparatus comprised of a cylindrical container made of glass fiber-reinforced plastic, the bottle of the container having an opening (14) and a sieve (16) remote from the bottom.
  • a filtering tube is secured of which the opening may be concealed by a removable cover pipe.
  • a side adjusting pipe leads to a chamber arranged under the sieve.
  • a valve (15) provided in the emptying opening is controlled by a pulse of a member which measures the height of the covering of solid material in the container and also by a level measuring member (22) in the adjusting pipe.
  • the dry material cake may be removed from the container through an opening (13) provided to this effect, and the filter (16) is rotatingly mounted to facilitate the emptying.
  • Circular cylindrical container made of glass fiber reinforced plastic with a drain opening (14) in the container base and a built-in sieve base (16) which is at a distance from the container base.
  • a filter tube is installed centrally above the sieve bottom, the openings of which are covered by a pull-out cover tube.
  • a regulating tube arranged to the side of the container leads to the space below the sieve bottom.
  • a valve (15) in the drainage line is controlled by a control device (23) which catches its impulses once from a measuring element (18) that measures the height of the solid cover in the container, and also by a measuring element (22) that measures the Measures the water level in the gel pipe.
  • the dried solids cake is removed via a discharge opening (13) in the container wall, w it is possible to rotate the filter base (16).
  • the present invention is based on a device and a method for the production of solid fertilizer from liquid manure according to the German patent application P 29 43 962.1 and the additional application thereto.
  • the container in the device according to the aforementioned patent applications is a concrete basin that can be driven over with a corrosion-resistant lining and is rectangular in plan.
  • a wall of the concrete basin is removed and the solid fertilizer is picked up by a tractor that drives into the concrete basin.
  • the container is circular-cylindrical and, in this form, offers the possibility of production from wound glass fiber reinforced plastic. Since this material itself is largely corrosion-resistant, there is no need for a special corrosion-resistant coating.
  • the solid fertilizer is removed from the side through an opening in the container wall, either by peeling off the solid cake or by tapping off the solid in sectors. Because the filter base is rotatable, the solid fertilizer can be rotated intermittently or continuously towards the discharge opening.
  • the container can be designed with a regulating tube attached outside or with an axially built-in regulating tube. If the regulating tube is attached to the outside, it is possible to attach a filter tube centrally in the container.
  • the built-in control tube has the advantage that the risk of the liquid freezing in the control tube is avoided.
  • the initial formation of a solid cover in the container is measured with the aid of two electrodes which are immersed in the container filling.
  • the electrical resistance is measured with these electrodes. Since the electrical resistance changes in the course of the solidification of the filling compound, the point in time of a certain solidification of the filling compound can be recorded at will.
  • the finished solid can be removed automatically after the process has ended.
  • solids that have sunk to the bottom and clog the filter base can be loosened by blowing in compressed air (brief impacts).
  • Fig. 1 is a vertical section through a device according to the invention
  • Fig. 2 is a horizontal section on II of Fig. 1
  • 3 shows a vertical section through a container with a built-in regulating tube
  • Fig. 4 is a section on IV of Fig. 3
  • FIG. 5 shows the bottom area of the container according to FIG. 3 on an enlarged scale.
  • a drain opening 14 is connected, which can be shut off by a bottom valve 15.
  • the container can be closed by a cover 11.
  • a filter base 16 (sieve base) is installed at a distance from the container base 10a.
  • the sieve bottom is rotatably held about the container axis and can be set in rotation by means of drive elements 17.
  • a filter tube 19 is installed upright in the space between the sieve bottom 16 and the cover, and openings 19a are provided in the lower area.
  • the filter tube 19 is concentrically surrounded by a cover tube 20 which, in the position shown, covers the openings 19a.
  • the openings can be opened by pulling up the cover tube 20.
  • the cover tube can also be installed in a rotatable manner. In this case, the openings 19a of the filter tube are released by turning the cover tube to bring the filter openings into alignment with corresponding openings in the cover tube.
  • closable ventilation openings 13 are provided in the container wall.
  • a vertical regulating tube 21 adjoins the intermediate space 25 next to the container.
  • the inflow to the control tube can be shut off by a valve 24.
  • a closable discharge opening 12 is provided in the container wall above the filter base 16, from which the solid fertilizer can be removed after the process has ended.
  • a measuring element 18 is shown schematically, which then sends an impulse to a control device 23 when a solid cover 1a has formed in the container as a result of a fermentation process.
  • the measuring element 18 also scans the height of this solid cover.
  • the measuring element 18 is a measuring element 22 in the control tube 21 supplied arranges by which the liquid level 2 in the control tube is measured.
  • the control device 23 is connected to the base valve 15 and causes this valve to be opened or closed. The method begins with the valve 24 being closed in front of the regulating tube 21 and water being filled into the space 25 approximately up to the level of the filter base 16.
  • the valve 15 is also closed.
  • the container is filled with manure, preferably with such manure that has already been pretreated in a bio-gas system.
  • the valve 24 is then opened so that liquid enters the control tube 21.
  • the container remains in this state for a few days until a fermentation process takes place, with the result that a solid layer 1a forms in the upper area of the manure.
  • the measuring element 18 then responds, gives a pulse to the control device 23, which causes the bottom valve 15 to open so that the liquid phase of the manure can run off.
  • the level 2 in the control pipe 21 drops.
  • the valve 15 is closed via the control device 23.
  • the solids cover 1 a then gradually sinks, which is registered by the measuring element 18 and entered into the control device 23.
  • the space 25 fills further with the liquid phase, which also results in an increase in the level in the control tube 21.
  • the valve 15 is automatically opened again. This process is repeated until the liquid phase of the Liquid manure has largely leaked and the solids have deposited on the filter base 16 in the form of a cake 1b.
  • Residual drying can now take place in that the filter openings 19a are exposed by pulling up the cover tube 20 so that further liquid phase can flow off via the openings 19a and further drying of the solid cake occurs.
  • the cover tube 20 When pulling the cover tube 20, the solid cake can dry in the middle area. In the outer area there is a
  • the removal can take place via the discharge opening 12, either by turning the solid cake 1b slowly and evenly and gradually peeling off the cake with a knife in the area of the discharge opening or by turning the cake intermittently and poking out one sector at a time. This also ensures that the solid cake is further aerated over a large area and dries off. This can also be supported by a fan.
  • the container according to FIG. 3 differs from the container according to FIG. 1 essentially in the built-in regulating tube 40. It is attached to the container bottom 32 in an upright position; A measuring element 43 leads to the line, which can be shut off by a valve 42, with which With the help of the hydrostatic pressure in the bypass line 41 and thus in the space below the filter base 36 can be measured.
  • thermal insulation layer 33 Several layers are applied to the solid container bottom 32, namely a thermal insulation layer 33, one
  • the filter base 36 (sieve base) is rotatably supported on this layer with the aid of rollers 37.
  • the lower area of the regulating tube 40 is surrounded by a permanently installed protective tube 49.
  • the discharge opening 44 with discharge line is installed eccentrically in the container bottom.
  • the drain line can be opened or closed by a valve 45.
  • a hydrostatic measuring element 46 is coupled to the valve 45 and measures the pressure across the filter base 36 as shown in FIG.
  • a screw conveyor 50 is provided for discharging the solids after drying.
  • Two electrodes 47 are installed in the lid 31 of the container, which dip into the maximum level of the container filling and detect the electrical resistance of the filling. Since this electrical resistance changes in the course of the solidification of the filling compound, the two electrodes 47 can detect the point in time at which the filling compound has solidified in the upper area to such an extent that the liquid phase can be withdrawn by opening the valve 45 below.
  • An apparatus is operated essentially as follows. First, water is filled into the container, at least up to the level of the filter base 36. Then the liquid manure is pumped in via the nozzle 39 up to the maximum filling level. The valve 42 is then opened so that the same level is also set in the control tube 40. As soon as the pair of electrodes 47 has indicated the required initial solidification, the valve 45 is opened so that the liquid phase drains off. As soon as the liquid phase has completely expired and a pressure of zero is displayed on the measuring element 43, the valve 45 closes again. The liquid level has meanwhile dropped as the liquid phase drains and has reached a lower level, which is indicated by a corresponding pressure on the measuring element 46.
  • FIG. 4 shows a mechanical discharge device consisting of a peeling knife 51 with a screw conveyor 50.
  • the peeling knife 51 is attached to a folding device 52 which can be pivoted in a horizontal plane by means of a joint 53 on the container wall next to the discharge opening 30a turns peeled Paring knife cut the fabric starting from the outside.
  • the dissolved substance is transported outside with the help of the screw conveyor.
  • the pivoting arrangement of the paring knife it can gradually be moved from the circumference of the container to its center, ie up to the protective tube 49.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Fertilizers (AREA)
  • Treatment Of Sludge (AREA)

Abstract

L'appareil est constitué d'un récipient cylindrique en plastique renforcé par des fibres de verre, le fond du récipient présente une ouverture (14) et un tamis (16) éloigné du fond. Au centre du tamis est fixé un tube de filtrage dont l'ouverture peut être masquée par un tube couvercle amovible. Un tube de réglage latéral mène à la chambre située sous le tamis. Une soupape (15) située dans l'ouverture de vidange est commandée par une impulsion d'un organe qui mesure la hauteur de la couverture de matière solide dans le récipient et également par un organe de mesure (22) du niveau dans le tube de réglage. Le gâteau de matière sèche peut être retiré du récipient par une ouverture (13) prévue à cet effet, le filtre (16) est monté tournant pour faciliter la vidange.
EP83902809A 1982-09-04 1983-08-31 Appareil et procede pour la fabrication d'engrais a partir de lisiers Pending EP0118501A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823232987 DE3232987A1 (de) 1982-09-04 1982-09-04 Vorrichtung und verfahren zur herstellung von festduenger aus guelle
DE3232987 1982-09-04

Publications (1)

Publication Number Publication Date
EP0118501A1 true EP0118501A1 (fr) 1984-09-19

Family

ID=6172521

Family Applications (2)

Application Number Title Priority Date Filing Date
EP83902809A Pending EP0118501A1 (fr) 1982-09-04 1983-08-31 Appareil et procede pour la fabrication d'engrais a partir de lisiers
EP83108557A Ceased EP0102615A1 (fr) 1982-09-04 1983-08-31 Procédé et installation pour la préparation d'engrais solides à partir de purin

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP83108557A Ceased EP0102615A1 (fr) 1982-09-04 1983-08-31 Procédé et installation pour la préparation d'engrais solides à partir de purin

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EP (2) EP0118501A1 (fr)
DE (1) DE3232987A1 (fr)
WO (1) WO1984000953A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE59002635D1 (de) * 1989-11-03 1993-10-14 Hoppe & Partner Zug Vorrichtung zum Entwässern von Schlamm.
EP0659460A3 (fr) * 1993-12-07 1995-10-25 Hpi Messtechnik Gmbh Procédé pour determiner la fin d'une opération de filtration.
JP3795101B2 (ja) * 1994-06-24 2006-07-12 サッポロビール株式会社 濾過装置及びその原液回収方法
DE19645527A1 (de) * 1996-11-05 1998-05-07 Rwe Dea Ag Vorrichtung zum Inkontaktbringen von Festkörpern in Form von schüttfähigen Stücken mit Flüssigkeiten und ggf. Gasen
CN113368575A (zh) * 2021-08-12 2021-09-10 山东淇水环保科技有限公司 一种多段式组合型污水处理系统

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Publication number Priority date Publication date Assignee Title
USRE25761E (en) * 1958-02-19 1965-04-13 Filter apparatus
DE2053131A1 (de) * 1970-10-29 1972-05-10 Streicher M Rühr- und Homogenisiereinrichtung für dickflüssige Medien, insbesondere Fließmist
SE367849B (fr) * 1972-10-25 1974-06-10 Celleco Ab
DE2426285B2 (de) * 1974-05-29 1977-01-20 Schreiber, August, Dr.-Ing., 3000 Hannover Kompostierungseinrichtung fuer abwasserschlamm und/oder muell
BE885575Q (fr) * 1977-01-07 1981-02-02 Shattock Geoffrey F Traitement des boues par degradation biologique
DE2943962C2 (de) * 1979-10-31 1982-12-23 Josef 4354 Datteln Knepper Verfahren zur Herstellung von Festdünger durch Trennung von Gülle und Vorrichtung zur Durchführung dieses Verfahrens

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Publication number Publication date
DE3232987A1 (de) 1984-03-08
EP0102615A1 (fr) 1984-03-14
WO1984000953A1 (fr) 1984-03-15

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