JPS6343160B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a washing liquid purifying device for a pine washing machine.

(Prior art) The Matsuto washing machine is a relatively large continuous washing machine equipped with several brushing rolls, and its main parts are a dusting section, a detergent washing section, a washing section, and a dewatering section. First, sand, dirt, and other deposits are removed from the supplied pine wood, then mud, oil, and other stains are washed with detergent, and after these are removed, the wood is dehydrated and finished. It is. By the way, this pine washing machine requires a large amount of washing water, and on the other hand, the washing machine discharges sewage containing dust, etc., so the washing machine is equipped with a sewage purification device. Measures are being taken to save cleaning water by discharging some of the wastewater outside the machine and purifying the other part and using it as detergent water.

For example, in the past, a pine washer was equipped with a purification device consisting of a liquid cyclone and a strainer, and the sewage discharged from the washer was first guided to the liquid cyclone to remove sand, mud, etc., and then introduced to the strainer. A method was used to separate floating substances with low specific gravity such as hair and fluff that could not be removed by a liquid cyclone (Japanese Patent Application No. 1984-220084).

Although the purification device itself has a sufficient function of purifying the waste water in matte washing machines using this method, the waste water contains a large amount of floating matter such as hair, so the strainer is relatively clogged. This eventually made it impossible for the washer to operate continuously, as it lost its filtration ability in a short period of time.

(Means for Solving the Problems) The present invention uses a rotating drum-shaped filter for a purification device, and continuously removes filtered suspended matter while filtering wastewater, thereby enabling continuous operation of the mat washer. This is what made it possible.

Hereinafter, the present invention will be specifically explained based on illustrated embodiments.

Reference numeral 1 in the figure is the main part of the mat washer,
Like this type of washing machine, it consists of a dusting section 2, a detergent washing section 3, a washing section 4, a dehydrating section 5, etc., and the detergent washing section 3 is further provided with a detergent liquid jetting nozzle 6 for purification. A detergent solution made by adding detergent to the water purified by the device 7 is poured toward the mat M, and the washing section 4 is provided with a washing water spouting nozzle 8 for cleaning tap water, etc. Water is poured toward the mat to wash away cleaning liquid and the like adhering to the mat M. Reference numeral 9 denotes a receiving tray that receives sand and washing wastewater knocked off from the mat M and sends them to the purifying device 7. The figure shows an example in which a liquid cyclone 10 is connected to the purification device 7 to separate and remove fine mud and the like that cannot be removed by the purification device 7. That is, the washing wastewater sent from the receiving tray 9 to the purifying device 7 is first separated by sedimentation of heavy substances such as sand, and then filtered to remove floating substances, and then sent to the liquid cyclone 10. After fine mud and the like that cannot be filtered out in the purification device 7 are removed, the cleaning liquid is returned to the cleaning liquid spouting nozzle 6 as detergent water.
It is sent to.

To further explain the purification device 7, reference numeral 11
12 is a filter tank, 12 is a filtrate tank, and 13 is a filter drum. Filter drum 13
is a kind of rotating drum type suction filtration device, and the main body portion (drum 16) is formed in the shape of a drum, and a filter material 14 such as a wire mesh is stretched on the outer peripheral surface of the main body portion (drum 16).
The washing liquid is filtered from the outside of the drum to the inside. Further, a drain pipe 15 that also serves as a rotating shaft is attached to the side surface of the drum 16. This drum 16 is located inside the filter tank 11 and is immersed in the cleaning waste water supplied to the outer tank, and the drain pipe 15 faces the filtrate tank 12 and enters the main body through the filter medium 14. The filtrate flows into a filtrate tank 12. The filtrate tank 12 is equipped with a water pump 1.
7 is provided, and the filtrate flowing into the filtrate tank 12 is sent out as detergent water.

By the way, the force with which the washing waste water in the filter tank 11 enters the drum 16 through the filter medium 14,
That is, the force with which the drum 16 filters the washing wastewater is generated by the height difference h between the water surface a of the washing wastewater in the filter tank 11 and the water surface b of the filtrate in the drum 16, and the force is generated when the height difference h is As it gets bigger, it gets stronger. Therefore, the higher the water level a of the washing wastewater in the filter tank 11, the stronger the filtration force becomes, and the higher the filtration capacity is. However, in the example shown in the figure, the water level a is slightly lower than the highest level of the drum 16. The upper part of the drum 16 was exposed from the water surface a. In the diagram,
As an example of regulating the height of the water surface a, a sedimentation tank 20 is attached to the filter tank 11, so that the washing water received in the receiving tray 9 is poured into the sedimentation tank 20 without being washed, and the sedimentation tank 20 has a predetermined height. The drain port 18 is opened, and at least the drain port 18 between the sedimentation tank 20 and the filter tank 11 is opened.
The conductive path 19 was formed at a position that was not higher. That is, by doing this, the sedimentation tank 20
Then, the height of the water surface is the same as that of the drain port 18, and the water surface of the filter tank 11 is the same as the water surface of the settling tank 20, so the water surface a of the filter tank 11 is ultimately the same as the height of the drain port 18. It will be regulated depending on the situation. By the way, the drum 1 exposes the upper part of the drum 16 from the water surface a.
6 removes sediments that adhere to the peripheral surface (filter medium 14) to enable continuous operation of the purifying device 7, and is located close to the drum on the rising side of the drum 16. A discharge groove 21 is formed to slightly protrude from the water surface a, and a sweeping brush 22 is provided above the discharge groove 21 to sweep the sediment adhering to the filter medium 14 of the drum into the discharge groove 21. It is designed to be discharged outside the aircraft and collected. still,
Although not shown, the drum 16 and the sweeping brush 22
is connected to the motor to rotate at an appropriate speed.

(Function) Next, the function of purifying the washing wastewater in the purification device configured as described above will be explained. While the motor is driven and the drum 16 and sweeping brush 22 are rotated, the cleaning wastewater received in the saucer 9 is poured into the settling tank 20. Then, this water enters the filter tank 11 through the conduit 19, is then filtered by the drum 16, and further flows into the filtrate tank 12 through the drain pipe 15.
This is pumped out and sent to the liquid cyclone 10. By the way, in this case, the amount of washing water that enters the filter tank 11 from the settling tank 20 is the amount of filtrate pumped out from the filtrate tank 12, that is, the amount of washing liquid that is sent to the liquid cyclone 10 and then ejected from the detergent liquid injection nozzle 6. On the other hand, the amount of cleaning wastewater poured into the settling tank 20 from the receiving tray 9 is equal to the amount of cleaning water jetted from the detergent jet nozzle 6 and the cleaning water jetted from the cleaning water jet nozzle 8. Since the amount of mixed water is much larger than the amount of water pumped out from the filtrate tank 12, a portion of it is discharged outside the machine through the drain port 18. Therefore, the water surface a of the cleaning water in the filter tank 11 is always maintained at approximately the same height as the drain port 18. Furthermore, since the filtrate tank 12 and the drum 16 are connected to each other via the drain pipe 15, when the water pump 17 is operated to pump out the filtrate from the tank, the water surface b of the filtrate in the drum 16 increases accordingly. descend. As a result, a pressure difference is generated between the outside and the inside of the drum 16 based on the height difference between the water surfaces a and b, and this force causes the cleaning wastewater in the filter tank 11 to flow through the filter medium 14 and into the drum 16.
It enters the water and is filtered out. Then, the filtrate flows into the filtrate tank 12, and the corresponding washing liquid flows into the filter tank 11 from the settling tank 20. Also, at that time,
The filtered sediment adheres to the peripheral surface of the drum 16, but this sediment is swept away toward the discharge groove 21 by the sweeping brush 22, preventing clogging of the filter medium 14 and maintaining the filtration efficiency at a constant level. This allows for continuous operation.

(Example) By the way, the cleaning waste water poured into the sedimentation tank 20 from the saucer 9 is contaminated with pebbles and the like that have adhered to the mats, so these will settle in the sedimentation tank 20 and accumulate at the bottom thereof. . code 23
is a scoop for dredging out this sediment, and is shaped like a shallow dish.
4, and rotates synchronously with the drum 16 by rotating it. The sediment in the sedimentation tank 20 is scooped up by this scoop 23, but when the scoop 23 reaches a predetermined height, it slides down from the scoop, so a tray is provided at the falling point to store it. In addition, the figure shows, as an example, a method in which the drain port 18 is opened at that point and the drain port 18 is replaced with a saucer. That is, by doing this, the precipitate is discharged out of the machine together with the excess washing water. In addition, in the figure, the bottom surface of the filter tank 11 is curved with a certain distance from the drum 16,
In addition, an example is shown in which a scraper 25 is attached to the drum 16 in contact with the bottom surface thereof. As a result, sedimentation does not occur in the sedimentation tank 20 and the filter tank 11
This is for dredging out the sediment that settles after entering the drain. Reference numeral 26 is a shower pipe that pours a portion of the filtrate sent from the water pump 17 toward the hydrocyclone 10 onto the bubbles generated in the settling tank 20 and the filter tank 11 to eliminate them.

(Effects of the Invention) As detailed above, the present invention purifies the washing liquid discharged from the pine washing machine, and then reuses it as a detergent solution. By reducing the amount of water and lowering its operating costs, we have also achieved a method to continuously purify the washing wastewater, making it possible to operate the matuto washing machine continuously, improving work efficiency and reducing work costs. It will be done.

In particular, by using the filter as a rotating drum, the present invention can continuously remove sediment adhering to the surface of the filter by sweeping it with a brush, thereby making it possible to always maintain the part of the filter where drainage is removed in a normal condition. It is. Furthermore, since a rotating drum type filter is used, even if the filter area is large, the sweeping brush needs to be of a small diameter, which has the effect of making the entire device more compact.

[Brief explanation of drawings]

Figure 1 is a side view showing the skeleton of the mat washer.
FIG. 2 is a vertical sectional view showing one embodiment of the present invention, and FIG.
The figure is a partially cutaway plan view of the same as above, FIG. 4 is a partially cutaway front view, FIG. 5 is a longitudinal sectional view showing the settling tank, and FIG. 6 is a partially cutaway perspective view showing the main part. 11; filter tank, 12; filtrate tank,
13; Filter drum, 14...Furnace material, 15; Drain pipe, 16; Drum, 17; Water pump, 18;
Drainage port, 19; Water conduit, 20; Sedimentation tank, 2
1; Discharge groove, 22; Sweeping part brush, 23; Scoop tip, 24; Rotating shaft, 25; Scraper, 2
6; Shower pipe.

Claims (1)

[Claims] 1. Equipped with a filter tank that guides the washing waste water discharged from the Matsuto washing machine, a filtrate tank is connected to this filter tank, a filter material is stretched on the outer circumferential surface, and a drain pipe that also serves as a rotating shaft is installed on the side surface. The main body of the filter drum is installed inside the filter tank, and the drain pipe is installed so as to face the filtrate tank, and the water level inside the filter tank is installed in the filter tank at a position close to the drum on the rising side of the drum. A discharge groove is provided to protrude slightly,
A cleaning wastewater purification device for a matte washer, characterized in that a sweeping brush is attached thereon.