JPS63128345A - Treating device for waste developing solution - Google Patents

Abstract

PURPOSE:To simplify construction and to permit easy use of a device in a small-scale photofinishing laboratory such as mini-laboratory by heating a waste developing soln., scraping the concd. or solidified matter on a plate by a scraping blade and discharging said matter. CONSTITUTION:Air flows along the outside circumference of a cooling fin 13 to forcibly cool the fin when a fan 20 runs. A pump 35 is operated to drop the waste developing soln. at a constant rate onto the rotary disk 23. The dropped waste developing soln. is heated by a heater 22 and the moisture contained therein evaporates and the soln. is gradually concentrated. The concd. soln. is dropped onto a plate 11 by a stationary scraper 35 when the rotary disk 23 makes nearly one turn. The concd. matter moved onto the plate 11 is heated by a heater 12 and is further concentrated or solidified. The solidified matter is pushed toward the outside circumference by the scraping blade 22a formed on the rear face of the rotary disk 23 and is dropped from a discharge port 11a into a chute 29 from which the matter is housed in a vessel.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a developing waste liquid processing apparatus used for concentrating or solidifying waste liquid discharged from an automatic developing machine or the like.

[Conventional technology]

An automatic processor is a device for photographically processing light-sensitive materials such as photographic film or photographic paper. A silver processing tank, a water washing processing tank containing a rinsing liquid, etc. are sequentially provided. The photosensitive material supplied to the automatic developing machine is photographically processed by sequentially passing through each processing tank at a predetermined speed by a conveying means such as a roller or a heald.

In the automatic processor, the developing solution and desilvering solution deteriorate with use, and the rinsing solution becomes stained by the developing solution, desilvering solution, etc. that have adhered to the photosensitive material. For this reason, fresh replenisher fluid is intermittently supplied to each processing tank, and overflow fluid is discharged as waste fluid.

The developer waste solution is usually stored in a tank or the like, and when a certain amount is accumulated, it is requested to be disposed of by a specialized company. Recently, mini-lab services have become widespread, where a small automatic developing machine and printer are installed in the corner of a store, and photo developing and printing are done concurrently. It is often difficult to secure a large space. By the way, most of the developer waste liquid is water, so if the developer waste liquid is concentrated or solidified, the amount to be stored can be extremely small, and the storage space and subsequent processing can be simplified.

2. Description of the Related Art As a conventional developer waste liquid processing apparatus, one that heats and solidifies developer waste liquid using a rotatable heat drum is known. In this device, waste liquid sent from an automatic developing machine is temporarily stored in a waste liquid tank, and then sent to a transfer tank using a pump.

A transfer roller is rotatably provided in the transfer tank with a portion thereof immersed therein, and the waste liquid is attached to the heat drum via the transfer roller. As the heat drum rotates, the water evaporates, and the remaining harmful solids are scraped off with a scraper and collected in a sludge catcher. Also, the evaporated moisture is sent to a gas water absorption tower where gas-liquid separation is performed, the resulting air is released into the atmosphere, and the water is discharged into rivers and the like.

[Problem that the invention seeks to solve]

The above-mentioned developing waste liquid processing apparatus uses a rotatable heat drum, and therefore has the drawbacks of being large in size and having a complicated structure.

Furthermore, because of its high price, it has been difficult to install it in small-scale photo labs such as minilabs.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a developer waste solution treatment device that has a simple structure and is suitable for small-scale photo labs.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention provides a heated rotating disk on a plate in which a discharge port is formed, and a scraping blade extending in the radial direction is formed on the lower surface of the rotating disk. The developing waste solution dripped onto the rotating disk is heated to concentrate or solidify it, and the concentrate or solid matter that has fallen onto the heated plate is dropped into the discharge port with a scraping blade. It is something.

In a preferred embodiment of the present invention, a heater is built into the rotating disk and the plate, and heats the developer waste liquid above them.

In another invention, a fixed scraper is disposed close to the upper surface of the rotating disk, and when the rotating disk rotates at a predetermined angle, for example, approximately one revolution, the developer waste concentrate that has moved along with the rotating disk is removed by the fixed scraper. scraped on top.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

〔Example〕

In FIG. 1, a plate 11 is fixed within a main body case 10, and a heater 12 is attached therein. Cooling fins 13 having an inverted U shape are arranged on the plate 11 to condense evaporated moisture and cause it to flow down along the wall surface. This flowing water is collected by a gutter 14 installed inside the lower part of the cooling fin 13,
It is sent to a filter 16 through a pipe 15. The filter 16 contains activated carbon and removes ammonia, formalin, etc. contained in the water droplets before draining them. □ In order to cool the cooling fins 13 with forced air, an intake port 18 is formed at the side of the main body case 10, and an exhaust port 19 is formed at the top. A fan 2 is placed under this exhaust port 19.
0 is attached so that air entering from the intake port 18 flows along the cooling fins 13.

A rotary disk 23 containing a heater 22 is placed on the plate 11. This rotating disk 23
has four scraping blades 2 at the bottom, as shown in Figure 3.
2a is formed. Further, a gear 25 is fixed to the rotating shaft 24 of the rotating disk 23, and this gear 25 is linked via an intermediate gear 26 to a gear 28 fixed to the rotating shaft of the motor 27. The scraping blade 22a scrapes off the concentrate or solidified material on the plate 11 from the outlet 11a formed at the corner of the plate 11. This outlet 11a
A chute 29 is connected to the chute 2.
The concentrate or solids are discharged via 9.

The developing waste liquid discharged from the automatic developing machine is stored in the waste liquid tank 32.
After being temporarily stored in , it is sent to a pipe 34 by a pump 33 . One end of this pipe 34 is open toward the rotating disk 23, and a fixed amount of developer waste is dropped onto the rotating disk 23. As shown in FIG. 2, a stationary scraper 35 is disposed close to the upper surface of the rotating disk 23 in order to scrape off the developer waste concentrated on the rotating disk 23 onto the plate 11.

A pipe 34 is placed near this fixed scraper 35.
It is preferable to arrange the open end of the developer solution so that the developer waste is heated during approximately one rotation of the rotating disk 23 before being dumped onto the plate 11 by the stationary scraper 35.

Next, the operation of the above embodiment will be explained. During waste liquid treatment, the fan 20 and rotating disk 23 are rotated, and the heaters 12 and 22 are energized. When the fan 20 rotates, air flows along the outer periphery of the cooling fins 13 to forcibly cool them. In addition, the pump 33 is activated to drop a certain amount of the developer waste onto the rotating disk 23. This rotating disk 23 rotates relatively slowly, and the developing waste liquid dropped onto the rotating disk 23 is heated by the heater 22.

When the developer waste liquid is heated, the water contained therein evaporates and is gradually concentrated. Then, when the rotating disk 23 rotates approximately once, the stationary scraper 35 scrapes the plate 11.
be dropped on top of. The concentrate transferred to the plate 11 is heated by the heater 12 and further concentrated or solidified.

A scraping blade 2 formed on the lower surface of the rotating disk 23
2a toward the outer periphery, falls from the discharge port 11a into the chute 29, and is housed in a container (not shown).

The moisture evaporated from the developing waste liquid condenses on the inside of the forcedly cooled cooling fins 13, flows down along the inner wall, and is collected in a gutter 14 formed around the plate 11. This collected water is passed through a pipe 15 to a filter 1
6, where solids, ammonia, etc. are removed before being drained.

〔Effect of the invention〕

As explained in detail above, the present invention heats the developer waste dripped onto the rotating disk to concentrate or solidify it, and also transfers the concentrate or solid matter that has fallen onto the plate to the lower surface of the rotating disk. Since it is configured to be scraped and discharged using a scraping blade, the structure is simpler than conventional equipment, and the manufacturing cost is low, making it easy to use in small-scale photo labs such as minilabs. can.

[Brief explanation of the drawing]

FIG. 1 is a sectional view schematically showing an embodiment of the present invention. FIG. 2 is a perspective view showing the relationship between the rotating disk and the stationary scraper. FIG. 3 is an inverted perspective view of the rotating disk. 10... Main body case 11... Plate 12... Heater 13... Cooling fin 22... Heater 23... Rotating disk 23a... Scraping blade 35... Fixed scraper.

Claims (4)

[Claims] (1) In a developing waste liquid treatment device that heats and condenses or solidifies waste liquid from photographic development, a heated rotating disk is installed on a plate in which a discharge port is formed, and a radial direction is provided on the bottom surface of the rotating disk. A scraping blade is formed that extends into the rotating disk, and the developing waste solution dropped onto the rotating disk is heated to concentrate or solidify it, and the scraping blade is used to scrape off the concentrate or solid matter that has fallen onto the heated plate. A processing device for developing waste liquid, characterized in that the waste liquid is dropped into a discharge port. (2) The developing waste liquid processing apparatus according to claim 1, wherein a heater is attached to the rotating disk. (3) In a developing waste liquid treatment device that heats and condenses or solidifies photographic developing waste liquid, a heated rotating disk is installed on a plate in which a discharge port is formed, and a radial direction is provided on the bottom surface of the rotating disk. forming a scraping blade extending over the rotary disk, heating the developer waste dripped onto the rotating disk to concentrate or solidify it, and then dropping it onto the plate with a fixed scraper placed close to the top surface of the rotating disk; A developer waste liquid processing apparatus characterized in that the concentrate or solid matter that has fallen onto the plate is dropped into a discharge port by the scraping blade. (4) The developing waste liquid processing apparatus according to claim 3, wherein a heater is attached to the rotating disk.