Abstract
The invention relates to a device for cleaning a honeycomb ceramic for the treatment of liquid economic manures; with a honeycomb ceramic for filtering contaminated water, such as fermentation residues, wherein the honeycomb ceramic has an inlet side for introducing the contaminated water and an outlet side for discharging the water filtered in the honeycomb ceramic and the substances separated from the contaminated water, wherein microorganisms for the cleavage of the contaminated water are provided in the honeycomb ceramic, and wherein the honeycomb ceramic has a plurality of channels running between the inlet side and the outlet side; and with a cleaning device arranged at the inlet side or the outlet side of the honeycomb ceramic, which is set up for cleaning the plurality of channels of the honeycomb ceramic. The invention furthermore relates to a method for cleaning a honeycomb ceramic for processing liquid economic manures from agriculture.
Claims
1. Device (1) for cleaning a honeycomb ceramic (2) for the treatment of liquid economic manures; comprising: a honeycomb ceramic (2) for filtering contaminated water, wherein the honeycomb ceramic (2) has an inlet side (3) for introducing contaminated water and an outlet side (4) for discharging the water filtered in the honeycomb ceramic (2) and the substances separated from the contaminated water, wherein the honeycomb ceramic (2) has microorganisms for the cleavage of the contaminated water, and wherein the honeycomb ceramic (2) has a plurality of channels (5) running between the inlet side (3) and the outlet side (4); and a cleaning device (6) arranged at the inlet side or the outlet side (3, 4) of the honeycomb ceramic (2), which is set up for cleaning the plurality of channels (5) of the honeycomb ceramic (2).
2. Device (1) according to claim 1, wherein the channels (5) running between the inlet side (3) and the outlet side (4) have a diameter (D) of in each case at least 2 mm, preferably at least 3 mm.
3. Device (1) according to claim 1, wherein the cleaning device (6) has at least one nozzle (7) directed in the direction of the honeycomb ceramic (2) for discharging a cleaning liquid, by means of which the plurality of channels (5) can be flushed through.
4. Device (1) according to claim 3, wherein the nozzle (7) has sealing means (18) for laterally sealing the nozzle (7), wherein the sealing means (18) bear against the inlet side or the outlet side (3, 4) of the honeycomb ceramic (2).
5. Device (1) according to claim 3, wherein the nozzle (7) is set up for simultaneously cleaning at least two of the plurality of channels (5).
6. Device (1) according to claim 1, wherein the cleaning device (6) has a drive (8), by means of which the nozzle (7) is movable along the inlet side or the outlet side (3, 4) of the honeycomb ceramic (2).
7. Device (1) according to claim 3, wherein the nozzle (7) is fixed laterally in at least one rail or threaded spindle (9) and is movable along the latter.
8. Device (1) according to claim 3, wherein the honeycomb ceramic (2) extends in a longitudinal and in a transverse direction (X, Y), along which the plurality of channels (5) are arranged in longitudinal and transverse rows (10, 11) in a grid-like manner, wherein the nozzle (7) extends along at least one longitudinal row (10) and is movable in the transverse direction (Y) or vice versa.
9. Device (1) according to claim 1, wherein the cleaning device (6) is set up for discharging the cleaning liquid at a pressure of 1 bar.
10. Device (1) according to claim 1, wherein the cleaning device (6) is connected to a pump (12) and a compressor (13) for conveying the cleaning liquid.
11. Method for cleaning a honeycomb ceramic (2) for processing liquid economic manures from agriculture by means of a device (1) according to claim 1, having the steps: subjecting the inlet side (3) of the honeycomb ceramic (2) to contaminated water; discharging the water filtered in the honeycomb ceramic (2) and the substances separated from the contaminated water from the outlet side (4) of the honeycomb ceramic (2); cleaning the plurality of channels (5) of the honeycomb ceramic (2) by means of the cleaning device (6), wherein a cleaning liquid is discharged in the direction of the channels (5) for cleaning the channels (5) by means of the cleaning device (6).
12. Method according to claim 11, wherein the subjecting of the honeycomb ceramic (2) to contaminated water is not interrupted during the cleaning.
13. Method according to claim 11, wherein the cleaning device (6) successively cleans the plurality of channels (5), wherein the cleaning device (6) in each case simultaneously cleans at least two channels (5).
14. Method according to claim 11, wherein the cleaning device (6) is moved along the inlet side or the outlet side (3, 4) of the honeycomb ceramic (2) by means of a drive (8).
15. Method according to claim 11, wherein the cleaning liquid is an air-water mixture and is discharged at a pressure of 1 bar.
Description
[0036] FIG. 1 shows a side view of an embodiment of the device according to the invention;
[0037] FIG. 2 shows a perspective view of an embodiment of the device according to the invention;
[0038] FIG. 3 shows a cross-sectional view of an embodiment of the honeycomb ceramic;
[0039] FIG. 4 shows a plan view of an embodiment of the honeycomb ceramic;
[0040] FIG. 5 shows an inner view of an embodiment of the honeycomb ceramic;
[0041] FIG. 6 shows a perspective view of an embodiment of the nozzle;
[0042] FIG. 7 shows a detail view of an embodiment of the air or water inlet of the nozzle.
[0043] The side view of an embodiment of the device according to the invention shown in FIG. 1 shows a honeycomb ceramic 2 accommodated in a container 16, which has a cleaning device 6 on its upper side, which represents the inlet side 3. On the right-hand side of the device 1 in the representation shown, the device 1 has an inlet 14 for contaminated water 19, which opens into the upper side of the container 16, so that the contaminated water reaches the upper side of the honeycomb ceramic 2 from there. The contaminated water is distributed on the surface or the inlet side 3 of the honeycomb ceramic 2 and penetrates from there through the plurality of channels 5, which are formed in the honeycomb ceramic 2. In the embodiment shown, the channels 5 run perpendicularly from the inlet side 3 to the outlet side 4 of the honeycomb ceramic 2. Finally, the water 20 filtered in the honeycomb ceramic 2 escapes from the outlet side 4 and is fed from there to a drain 15, which, in the representation shown, leads out of the device 1 at the top left next to the container 16. A cleaning device 6 for cleaning the channels 5 is arranged on the inlet side 3. This cleaning device has a nozzle 7, which is supplied with cleaning agents via a water pump 12 and with compressed air via a compressor 13 in order to flush through the channels 5. The cleaning device 6 or the nozzle 7 is linearly movable in the X direction along the inlet side 3 of the honeycomb ceramic 2, so that in each case a subset of the plurality of channels 5 can be simultaneously cleaned by the cleaning device 6 and the device 1 can continue to be operated during the cleaning. To move the cleaning device 6 along the inlet side 3, this is coupled to a drive 8, which moves the cleaning device 6 linearly along the X direction.
[0044] The perspective inner view of the container 16 shown in FIG. 2 shows, by way of example, a honeycomb ceramic 2 accommodated in the container 16, the inlet side 3 of which faces the upper side, wherein it can be seen that further honeycomb ceramics 2 would have space in the honeycomb ceramic 2. The individual ceramic block of the honeycomb ceramic 2 is fixed, as can be seen, in a frame mounted in the container 16. The frame has openings, so that the filtered water 20 can escape from the lower side or the outlet side 4 of the honeycomb ceramic 2. FIG. 2 furthermore shows an exemplary embodiment of the cleaning device 6, which has a nozzle 7 extending substantially in the Y direction, which is fixed laterally at each of its opposite ends in a rail or threaded spindle 9 and is linearly movable in the X direction along the rails or threaded spindles 9. The rails or threaded spindles 9 are in each case fixed to the container inner wall. The nozzle inlet is connected to a cleaning line 17, which is formed from a plurality of pipe elements, which are designed to be pivotable relative to one another, so that when the cleaning device 6 is moved along the X axis, the pipe connection is correspondingly also pivoted.
[0045] FIG. 3 shows a schematic cross-sectional view through the nozzle 7 and through the honeycomb ceramic 2. The nozzle 7 is arranged on the inlet side 3 of the honeycomb ceramic 2 and bears against the latter with sealing means 18 in order to prevent a laterally escaping cleaning agent between the nozzle 7 and the honeycomb ceramic 2. At the inlet side 3, the contaminated water 19, distributed over the surface thereof, impinges on the honeycomb ceramic 2 and subsequently runs through the plurality of channels 5 due to gravity in the direction of the outlet side 4 of the honeycomb ceramic 2. The channels in each case have a diameter D, which is 3 mm in the embodiment shown. When flowing through the channels 5, the contaminated water 19 passes the microorganisms 28 settled in the channels 5, which ensure a filtration of the contaminated water 19, so that finally cleaned water 20 escapes from the honeycomb ceramic 2 on the outlet side 4. Over time, more and more dirt 22 is deposited in the channels 5, which gradually block as a result. As a result, the effective usable diameter of the channels 5 is reduced. By using the cleaning device 6, it is now possible to free the channels 5 again from dirt. For this purpose, the nozzle 7 is arranged such that the water jet escaping from it is oriented parallel to the channels 5 and therefore acts in the channel direction. As a result, the channels 5 can be successively cleaned. The deposited dirt 22 escapes at the outlet side 4 in the form of solid particles and can be correspondingly filtered out there. The embodiment shown is designed such that the nozzle 7 for cleaning in each case forms a channel longitudinal row 10. It can be seen that the channel 5, on which the cleaning device 6 is arranged at the time of the illustration, has already been freed from dirt 22 and this escapes from the honeycomb ceramic 2 at the outlet side 4. Subsequently, the cleaning device 6 can be moved further in the X direction and carry out the cleaning of an adjacent channel 5.
[0046] In the plan view of the inlet side 3 of the honeycomb ceramic 2 shown in FIG. 4, it can be seen that the channels 5 are designed in a grid-like manner with a square cross section in the honeycomb ceramic 2, wherein the channels 5 in each case have the same height and width of in each case 3 mm. The honeycomb ceramic 2 thus has a plurality of longitudinal rows 10 running in the X direction and a plurality of transverse rows 11 running in the Y direction. Of course, the number of longitudinal rows 10 and of the transverse rows 11 can be correspondingly adapted depending on the configuration of the device 1. In the embodiment shown, in addition to the channels 5 themselves, the honeycomb ceramic 2 also has a square cross section, so that in each case the same number of longitudinal rows 10 and transverse rows 11 is provided. It can furthermore be seen that the nozzle 7 spans the honeycomb ceramic 2 in the Y direction and is supported in each case via parallel rails or threaded spindles 9 arranged on opposite sides of the honeycomb ceramic 2 and is movable along these in the X direction over the inlet side 3 of the honeycomb ceramic 2.
[0047] To illustrate the construction of the honeycomb ceramic 2, FIG. 5 shows a honeycomb ceramic 2 cut through substantially diagonally. This has a plurality of longitudinal rows 10 running in the X direction and a plurality of transverse rows 11 of channels 5 running in the Y direction. The channels 5 have a square cross section, wherein the edge length of the channels is to be considered as diameter D, which is 3 mm in the embodiment shown.
[0048] FIG. 6 shows a perspective view of the nozzle 7. This nozzle has on its upper side a central nozzle inlet 23 for the introduction of cleaning agent or water. From this inlet 23, a distribution bridge 24 guides the water to a plurality of further inlets, which open directly into the nozzle body 27, so that the water can be introduced into the nozzle 7 distributed over the longitudinal extent thereof. In this case, each inlet opening directly into the nozzle body 27 is furthermore assigned a compressed air inlet 25, which is set up to introduce incoming water under pressure into the nozzle body 27. On the lower side of the nozzle 7, this nozzle has a nozzle outlet 26, which extends over the entire longitudinal extent of the nozzle 7. This nozzle outlet 26 consists substantially of two metal sheets which are placed against one another and which taper the passage cross section in the direction of the outlet 26, so that the flow speed of the water in the direction of the outlet is increased for a maximum exit speed.
[0049] Finally, FIG. 7 shows a detail view of the region of the inlet of the distribution bridge 24 opening into the nozzle body 27 in cross section. In this case, the cleaning liquid 21 flows horizontally into the curved inlet and is deflected therein by 90 before it enters the nozzle body 27. In the region of the deflection, the compressed air inlet 25 opens into the inlet and is oriented perpendicularly or orthogonally to the inlet cross section of the inlet opening into the nozzle body 27. The inlet opening into the nozzle body 27 is simultaneously oriented orthogonally to the flow direction of the cleaning liquid 21 from the nozzle outlet 26, so that the compressed air inlets 25 blow the compressed air into the nozzle body 27 precisely parallel to and aligned with the nozzle outlet 26.
[0050] The features of the invention disclosed in the above description, in the figures and in the claims can be essential both individually and in any combination for the realization of the invention.
REFERENCE SIGNS LIST
[0051] 1 Device [0052] 2 Honeycomb ceramic [0053] 3 Inlet side [0054] 4 Outlet side [0055] 5 Channels [0056] 6 Cleaning device [0057] 7 Nozzle [0058] 8 Drive [0059] 9 Rail/threaded spindle [0060] 10 Longitudinal row [0061] 11 Transverse row [0062] 12 Pump [0063] 13 Compressor [0064] 14 Inlet [0065] 15 Outlet [0066] 16 Container [0067] 17 Cleaning line [0068] 18 Sealing means [0069] 19 Contaminated water [0070] 20 Filtered water [0071] 21 Cleaning liquid [0072] 22 dirt [0073] 23 Nozzle inlet [0074] 24 Distribution bridge [0075] 25 Compressed air inlet [0076] 26 Nozzle outlet [0077] 27 Nozzle body [0078] D Channel diameter [0079] X longitudinal direction [0080] Y transverse direction
