JPS631969Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a dishwashing device in which a residue processing section and a washing section are connected to each other by a conveyor.

Generally, when washing a large amount of used tableware in a cafeteria, etc., a residue processing section is equipped with a residue flow gutter to flush out the residue left on the dishes, and washing water spray nozzles are installed on the upper and lower sides. and a cleaning section in which a cleaning conveyor runs, and these two conveyors are arranged in series to sequentially perform residue processing and automatic cleaning. In this type of conventional device, water is circulated through the residue flow gutter so that the residue introduced into the flow gutter is washed away and falls into a colander. In order to keep the cleanliness of this circulating water constant, a fixed amount of cleaning water is replenished and the amount overflows. On the other hand, a wash water tank is also used in the washing section, and the wash water containing detergent stored in this tank is circulated and used. Clean water is used for final washing, and some of the water after use is used as washing water. The water is replenished into a receiving tank, and the amount overflows to maintain the cleanliness of the wash water, while the remaining water is washed away as sewage.

In such conventional devices, clean water is replenished separately, which results in a large amount of clean water being discarded, especially in the washing section, making it uneconomical.

Furthermore, JP-A-55-118729 describes that the water level in a separately provided sub-tank is detected by a pressure switch and the hot water is reused. Since it is necessary, there is a problem that the cost is correspondingly high, maintenance is not easy, and it is uneconomical.

In view of the above-mentioned circumstances, the present invention effectively reuses a large amount of water used and discarded in the washing section in the residue processing section, thereby achieving economical water use, low cost, and low maintenance. The purpose of this device is to provide an easy dishwashing device, and its gist is a washing section equipped with washing water spray nozzles above and below a washing conveyor on which dishes or dish baskets are placed and conveyed; In a dishwashing apparatus having a conveyor for a residue processing section arranged in continuation with a washing conveyor of the washing section and a residue processing section equipped with a residue flow gutter, an overflow drainage channel of a wash water receiving tank provided in the washing section is provided. A branch path is provided in the middle, and the branch path is connected to the suction side flow path of the pump, and the drainage side flow path of the pump is connected to the middle of the residue flow permeable water circulation path for the residue flow trough, and The overflow drainage channel is provided with a bypass channel that straddles above the branch position of the branch channel, the bypass channel is provided with a water level detection sensor that detects the water level in the bypass channel, and the overflow drainage channel is provided with a water level detection sensor that detects a water level in the bypass channel, , an on-off valve is interposed between the branch position of the branch passage and the confluence position of the bypass flow passage, and when the water level of the overflow drainage passage of the wash water receiving tank is above a certain level, a pump is operated to remove the overflow drainage as residue. A dishwashing device characterized in that water is supplied to a flowing water circulation path.

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a plan view schematically showing the entire dishwashing apparatus according to an embodiment of the present invention, and FIG. 2 is a side sectional view schematically showing the washing section.

The tableware washing device includes a washing section 1 and a residue processing section 2.
and connecting conveyors 3 and 4 that connect the cleaning section 1 and the residue processing section 2 in a continuous loop.

The washing section 1 has a detergent washing chamber 5 in which dishes are washed with washing water mixed with detergent, and a finishing washing chamber 6 in which dishes are rinsed with clean water. A conveyor 7 is passed through, and cleaning water injection nozzles 8 and 9 are provided above and below the conveyor 7, and each nozzle 8 and 9
Washing water containing detergent or clean water is spouted from the tableware to wash the dishes while they are being conveyed by the conveyor 7.

Washing water receiving tanks 10 and 11 are located under each washing chamber 5 and 6.
is provided, and in addition to the water jetted from the nozzle 8 in the cleaning chamber 5, a part of clean water from a nozzle 9 provided in the finishing cleaning chamber 6 flows into the cleaning chamber 5. .

Overflow drain pipes 12 and 13 are installed from the bottom of these washing water receiving tanks 10 and 11 to discharge water above a certain water level when the water level reaches a certain level, and these drain pipes 12 and 13 are connected to a common overflow drain. It is connected to road 14.

On the other hand, the residue processing unit 2 includes a residue processing unit conveyor 15 for transporting tableware, and a residue flow gutter 16 arranged parallel to the conveyor 15, and the residue remaining on the tableware is thrown into the flow gutter 16. The tableware is placed on a conveyor 15 for the residue processing section, and is sequentially conveyed to the washing section 1 side.

FIG. 3 is a partially cutaway side view showing the residual flow perhydration circulation section.

The downstream end of the residue flow trough 16 is communicated with a residue receiving tank 17, and a basket 18 is accommodated in this residue receiving tank 17, and the residue flowing through the residue flow trough 16 together with water is received in this basket 18. I'm trying to be able to do that. Further, the residue flow trough 16 and the residue receiving tank 17 constitute a part of a residue flow filtration circulation path, and this residue flow filtration circulation path is a flow filtration channel opened from the bottom of the residue receiving tank 17 to the flow trough 16. It has a flow path 21 that communicates with the discharge ports 20, 20, . I'm trying to get back within 17.

A branch passage 23 branched from the overflow drainage passage 14 of the cleaning section 1 described above is communicated with this residue receiving tank 17 . This branch path 23 has a pump 24
is provided, and the water in the overflow drainage channel 14 is sent into the residue receiving tank 17 by this pump 24. The overflow drainage channel 14 is provided with a bypass channel 25 disposed above the branching position of the branch channel 23, and this bypass channel 25 is provided with a water level detection sensor 26.

This water level detection sensor 26 is connected to the bypass flow path 2.
5, has a downward electrode (not shown) at the tip inserted into the bypass flow path 25, and utilizes impurity-containing water in the bypass flow path 25 as an electrical conductor, Only when the water level in the bypass channel 25 rises and is higher than the tip of the electrode, a current flows through the electrode, and the pump 24 is operated through a control panel (not shown), so that the water level becomes higher than the tip of the electrode. When the water level is low, the water surface moves away from the electrode and the current is cut off, stopping the pump 24.

Inside the residue receiving tank 17, there is an overflow drain pipe 2.
7 is erected, and this is for draining the amount of water newly supplied into the flowing water circulation path.
Further, the on-off valve 30 located in the middle of the overflow drainage channel 14 is interposed between the branching position of the branching channel 23 and the confluence position of the bypass channel 25, and by closing this valve, the drain water is transferred to the bypass channel. The water level is detected by a sensor 26 to operate the pump 24. Furthermore, a fresh water supply pipe 28 leading into the residue receiving tank 17
The fresh water is supplied into the flowing water circulation path by opening and closing the on-off valve 29.

The dishwashing device of the present invention is configured as described above,
By supplying the wastewater from the washing section to the flow gutter of the residue processing section, relatively clean water that is discarded at the washing section can be used again in the residue processing section, resulting in effective use of water resources.
It is economical, and because the water supply to the flow circulation path of the residue treatment section is related to the amount of overflow wastewater of the washing section, the residue flow water can be purified well in response to the dishwashing process. The overflow drainage channel is provided with a bypass channel that straddles the branch position of the branch channel above, the bypass channel is provided with a water level detection sensor that detects the water level in the bypass channel, and the overflow drainage channel is provided with a water level detection sensor that detects the water level in the bypass channel, By interposing an on-off valve between the branch position of the branch path and the confluence position of the bypass flow path, a sub-tank for water level detection is not required,
This has advantages such as a simplified configuration, low cost, and easy maintenance.

[Brief explanation of the drawing]

Fig. 1 is a plan view schematically showing the entire dishwashing apparatus according to an embodiment of the present invention, Fig. 2 is a side sectional view schematically showing the washing section, and Fig. 3 is a plan view showing the outline of the washing section. It is a partially broken side view. 1...Cleaning section, 2...Residue processing section, 3, 4...
Connecting conveyor, 5... Detergent washing room, 6... Finish washing room, 7... Washing conveyor, 8, 9... Washing water injection nozzle, 10, 11... Washing water receiving tank, 12,
13...Overflow drain pipe, 14...Overflow drain channel, 15...Residue processing section conveyor, 16...Residue flow trough, 17...Residue receiving tank, 1
8... Basket, 20... Flowing water outlet, 21... Channel, 22... Pump, 23... Branch path, 24...
Pump, 25... bypass channel, 26... sensor, 27... overflow drain pipe, 28... fresh water supply pipe, 29, 30... on-off valve.

Claims (1)

[Scope of utility model registration request] A washing section equipped with washing water spray nozzles above and below a washing conveyor on which tableware or tableware baskets are placed and conveyed, and a conveyor for a residue processing section arranged in continuation with the washing conveyor of the washing section, and a residue flow passage. In a dishwashing device having a residue processing section equipped with a gutter,
A branch passage is provided in the middle of the overflow drainage passage of the wash water receiving tank provided in the washing section, and the branch passage is connected to the suction side passage of the pump, and the drainage side passage of the pump is connected to the drainage passage for the residue flow trough. A bypass flow path is provided in communication with the residual flow overwater circulation path, and the overflow drainage path is provided with a bypass flow path that straddles the branch position of the branch path above, and the water level in the bypass flow path is detected. A detection sensor is provided, and an on-off valve is interposed in the middle of the overflow drainage channel between a branch position of the branch channel and a confluence position of the bypass channel, and the water level of the overflow drainage channel of the wash water receiving tank is adjusted. 1. A dishwashing device characterized in that a pump is operated when the temperature exceeds a certain level to supply the overflow wastewater to a residual water circulation path.