Conveyor dishwasher and method for operating a conveyor dishwasher
First Claim
1. A conveyor dishwasher having at least one wash zone and at least one final rinse zone which is arranged downstream of the at least one wash zone, and having a conveyor apparatus for conveying washware through the at least one wash zone and the at least one final rinse zone, with a final rinse liquid which is sprayed onto the washware to be treated in the at least one final rinse zone having a metered disinfection chemical, and with at least one additional final rinse zone which is arranged downstream of the at least one final rinse zone as seen in a conveying direction being provided for spraying fresh water without a disinfection chemical onto the washware to be treated;
- characterizedin that the at least one final rinse zone has an associated collection device for collecting liquid which is sprayed in the at least one final rinse zone;
in that the at least one additional final rinse zone has an associated collection device for collecting liquid which is sprayed in the at least one additional final rinse zone, wherein the collection device associated with the at least one additional final rinse zone is separate from the collection device associated with the at least one final rinse zone, wherein the collection device associated with the at least one additional final rinse zone is not connected to deliver liquid for spraying in the at least one final rinse zone; and
in that a liquid transfer system is provided, it being possible to supply the liquid which is collected in the collection device of the at least one additional final rinse zone directly to the at least one wash zone by means of said liquid transfer system, or it being possible to supply the liquid which is collected in the collection device of the at least one additional final rinse zone directly to a wastewater outlet of the conveyor dishwasher by means of said liquid transfer system, in either case such that the liquid collected in the collection device of the at least one additional final rinse zone bypasses the collection device of the at least one final rinse zone in order to avoid diluting liquid in the collection device of the at least one final rinse zone.
2 Assignments
0 Petitions
Accused Products
Abstract
A conveyor dishwasher has at least one wash zone, at least one final rinse zone, and conveyor apparatus. In order to reduce the consumption of disinfection chemical and energy, but to nevertheless maintain a desired final rinse result, the final rinse liquid which is sprayed in the final rinse zone has a metered disinfection chemical, and at least one additional final rinse zone arranged downstream of the final rinse zone provided for spraying fresh water without a disinfection chemical onto the washware to be treated. The at least one additional final rinse zone has an associated collection device for collecting liquid which is sprayed in the additional final rinse zone. Furthermore, a liquid transfer system is provided, it being possible to supply the liquid which is collected in the collection device directly to the wash zone by means of said liquid transfer system.
7 Citations
18 Claims
-
1. A conveyor dishwasher having at least one wash zone and at least one final rinse zone which is arranged downstream of the at least one wash zone, and having a conveyor apparatus for conveying washware through the at least one wash zone and the at least one final rinse zone, with a final rinse liquid which is sprayed onto the washware to be treated in the at least one final rinse zone having a metered disinfection chemical, and with at least one additional final rinse zone which is arranged downstream of the at least one final rinse zone as seen in a conveying direction being provided for spraying fresh water without a disinfection chemical onto the washware to be treated;
characterized in that the at least one final rinse zone has an associated collection device for collecting liquid which is sprayed in the at least one final rinse zone; in that the at least one additional final rinse zone has an associated collection device for collecting liquid which is sprayed in the at least one additional final rinse zone, wherein the collection device associated with the at least one additional final rinse zone is separate from the collection device associated with the at least one final rinse zone, wherein the collection device associated with the at least one additional final rinse zone is not connected to deliver liquid for spraying in the at least one final rinse zone; and in that a liquid transfer system is provided, it being possible to supply the liquid which is collected in the collection device of the at least one additional final rinse zone directly to the at least one wash zone by means of said liquid transfer system, or it being possible to supply the liquid which is collected in the collection device of the at least one additional final rinse zone directly to a wastewater outlet of the conveyor dishwasher by means of said liquid transfer system, in either case such that the liquid collected in the collection device of the at least one additional final rinse zone bypasses the collection device of the at least one final rinse zone in order to avoid diluting liquid in the collection device of the at least one final rinse zone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
17. A method for operating a conveyor dishwasher in which method the washware to be cleaned is conveyed through at least one wash zone and at least one final rinse zone with the aid of a conveyor apparatus, with the at least one final rinse zone being arranged downstream of the at least one wash zone as seen in a conveying direction of the washware which is conveyed using the conveyor apparatus, and with final rinse liquid being sprayed onto the washware to be treated in the at least one final rinse zone, with a disinfection chemical being added in a metered manner to the final rinse liquid which is sprayed in the at least one final rinse zone, and with the washware which is treated in the at least one final rinse zone then being conveyed through at least one additional final rinse zone in which fresh water without a disinfection chemical is sprayed onto the washware,
characterized in that the liquid which is sprayed in the at least one final rinse zone is collected in a first collection device which is associated with the at least one final rinse zone; -
in that the liquid which is sprayed in the at least one additional final rinse zone is collected by a second collection device which is associated with the at least one additional final rinse zone, the second collection device separate from the first collection device, wherein the second collection device is not connected to deliver liquid for spraying in the at least one final rinse zone; and in that the liquid which is collected in the second collection device is supplied directly to the at least one wash zone or to a wastewater outlet of the conveyor dishwasher in order to bypass the first collection device and avoid diluting liquid in the first collection device.
-
-
18. A conveyor dishwasher having at least one wash zone and at least one downstream final rinse zone, and a conveyor apparatus for conveying washware through the at least one wash zone and the at least one final rinse zone, with final rinse liquid that is sprayed onto washware to be treated in the at least one final rinse zone having a metered disinfection chemical, and with at least one additional final rinse zone arranged downstream of the at least one final rinse zone and being provided for spraying fresh water without a disinfection chemical onto the washware to be treated;
wherein the at least one final rinse zone has an associated collection device for collecting liquid which is sprayed in the at least one final rinse zone and to supply the collected liquid to one or more spray nozzles for spraying on washware; the at least one additional final rinse zone has an associated collection device for collecting liquid which is sprayed in the at least one additional final rinse zone, wherein the collection device associated with the at least one additional final rinse zone is separate from the collection device associated with the at least one final rinse zone, wherein the collection device associated with the at least one additional final rinse zone is not connected to deliver liquid for spraying in the at least one final rinse zone; and a liquid transfer system is provided for supplying the liquid which is collected in the collection device of the at least one additional final rinse zone directly to (i) the at least one wash zone or (ii) a wastewater outlet of the conveyor dishwasher, such that the liquid collected in the collection device of the at least one additional final rinse zone bypasses the collection device of the at least one final rinse zone in order to avoid diluting liquid in the collection device of the at least one final rinse zone.
Specification