JPS6034405B2 - liquid purification equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a liquid purification device, such as a grinding fluid regeneration device, and relates to a grinding fluid that performs flocculation and precipitation in parallel after adding a flocculant to the grinding fluid containing impurities.

The grinding fluid that has passed through the grinding machine etc. contains impurities such as emulsified oil, metal powder, and abrasive grains, and even if it is treated with a purification device such as a cyclone or magnetic separator, impurities will accumulate and the fluid will rot. 1 to 2 at general work sites due to etc.
It became unusable within a week and the entire grinding fluid had to be replaced.

The present invention has been made for the purpose of providing a grinding fluid regenerating device that completely removes the above impurities and eliminates the need to renew the grinding fluid. The present invention will be explained in detail below based on the illustrated embodiments. In the figure, numeral 1 is an open-top rice bowl with an outer shell formed by side walls 11, 12, 13, 14 and a bottom wall 15, and the rice bowl 1 has partition walls 21, 22, 23, 24, 25, 26, 27. Therefore, the outflow chamber 101, the inflow chamber 102, and the introduction chamber 103, respectively.
, a first zigzag chamber 104, a second zigzag chamber 105,
It is divided into a third zigzag chamber 106, and the first,
In the second and third zigzag chambers 104, 105, 106, there are support plates 31, 41, 51 and overflow buttresses 32, 42, 5, which are arranged alternately on both sides of the support plates 31, 41, 51, respectively.
The first, second and third zigzag units 3 and 4 each consist of
, 5 are each removably mounted. The partition wall 24 has a notch 24a at its upper end, and the partition wall 25 has a zigzag chamber 104 separated by a support plate 31 at its lower end.
A through hole 25a that passes only through the side wall 12 side of the support plate 31, 41, 51 has a through hole 31a, 41a, 51a at the lower end of the left end in FIG.
The right end of the partition wall 27 in FIG.
Each of the zigzag chambers 106 has a through hole 21a that is suitable only for the side wall 14 of the zigzag chamber 106 separated by the zigzag chamber 106. In addition, the lower end of each downflow baffle 33, 43, 53 has a gap between it and the bottom wall 15, which allows the adjacent chambers separated by the downflow baffle 33, 43, 53 to be connected to each other. Suitable through holes 33a, 43a, 53a
becomes. Furthermore, the upper end surfaces of the zigzag units 3, 4, and 5 formed by the upper ends of the support plates 31, 41, and 51 and the upper ends of the downflow buttresses 33, 43, and 53 are inclined toward the left in FIG. At the same time, the upper end surfaces of the partition walls 26 and 27 are inclined toward the right in FIG. The left end and the left end of the partition wall 27, and the right end of the partition wall 27 and the right end of the zigzag unit 5 are approximately equal in height to each other, so that the right end of the zigzag unit 3 is lower than the highest state in a continuous zigzag manner to nth order. The upper ends of these zigzag units 3, 4, 5 and the partition walls 26, 27 are connected to the side walls 12, 13, 14 forming the upper end of the tank 1, and the partition walls 21, 23, 2.
Both are set lower than the upper limit of 5. Also side wall 1
Overflow buttfull 32 of zigzag unit 3 on the 2nd side
The upper end of the zigzag unit 3 is lower than the upper end surface of the zigzag unit 3 and is gradually lowered substantially parallel to the upper end surface of the zigzag unit 3. The zigzag units 4,
The overflow thresholds 42 and 52 of No. 5 are also set to become lower in sequence. However, the upper end of the first overflow baffle 32 in the flow path direction of the zigzag unit 3 on the side wall 12 side is set lower than the liquid level in the introduction chamber 103 (the liquid level in the introduction part). At this time, the first
In the second and third zigzag chambers, each support plate 3
1, 41, and 51 constitute a zigzag flow path in the vertical direction, and they mutually connect through holes 31a, 26a,
It is configured as a horizontal zigzag flow path via 41a, 27a, and 51a, and the entire cage 1 forms one composite zigzag flow path. Note that the through holes 25a, 33a, 31a, 2
6a, 43a, 41a, 27a, 53a, 51a, 21
In terms of the cross-sectional area, a is set so that the through hole 25a is the smallest, and the through hole 25a becomes larger sequentially in the direction of the flow path. 21a is made the largest. However, through hole 21
The height of a may be set to be higher than the level of the grinding fluid passing therethrough, or only this portion of the partition wall 21 may be removed. Note that 6 and 7 are drain holes that can be opened as appropriate, provided at the bottom of the outflow chamber 101 and the inflow chamber 102, respectively, and handles 34 and 54 are attached to the tops of the zigzag units 3, 4, and 5, respectively. . For convenience of manufacturing, the overflow baffles 32, 42, 52 and downflow baffles 33, 43, 53 in each zigzag unit 3, 4, 5 are made the same in shape and height, respectively. Between,
A configuration may be adopted in which the above-mentioned difference occurs. The grinding fluid contaminated by passing through a grinding machine, etc. flows into the inflow chamber 102 from an inlet (not shown) (arrow A), passes through the notch 24a of the partition wall 24, enters the introduction chamber 103, and flows through the through hole 25a into the inflow chamber 102. It flows into the zigzag chamber 104 of No. 1, overflows the upper end of the overflow baffle 32 from there, flows through the zigzag flow path passing through the through hole 33a at the lower end of the downflow baffle 33, and flows into the first, second and third zigzag chambers 104. The grinding fluid that has passed through the zigzag chamber and the single zigzag channel enters the outflow chamber 101 through the through hole 21a, and then is sent out to the next process (for example, a pressurized flotation separation tank) through an outflow port (not shown). (Arrow B).

When the grinding fluid passes through the inlet chamber 102, the introduction chamber 103, the zigzag flow path, and the outflow chamber 101, the metal powder, abrasive grains, and other sedimentary materials contained in the grinding fluid settle and form the bottom wall 15.
It is deposited on top and separated from the grinding fluid. Further, a flocculant is added to the grinding fluid flowing through the grinding chamber 1 at an appropriate position in the inflow chamber 102, the introduction chamber 108, or the zigzag channel (preferably in the inflow chamber 102 or the introduction chamber 103). The grinding fluid to which the coagulant has been added passes through the relatively narrow through holes 25a, 33a, and 31a during the initial distribution stage of the zigzag channel, so it becomes a rapid flow, becomes extremely turbulent, and flows at high speed. The grinding fluid and coagulant can be mixed well. The cross-sectional area of each hole in the zigzag flow path gradually increases in the direction of the flow path, and the liquid level also gradually decreases, so the flow velocity in the hole gradually slows down, and the grinding fluid flows in a zigzag flow. It is subjected to the continuous change of Kenazusa effect until the Ayafast Toyo state in the late circulation stage of the road. The flocs (clumps of fine particles of impurities such as floating oil collected by the flocculant) that start growing from the initial distribution stage to the middle distribution stage of the zigzag flow path gradually grow and become larger as they progress through the zigzag flow path. The solidification and coarsening of the grains are achieved through the rolling action in the latter stage of distribution. Note that bubbles generated in the grinding liquid while passing through the zigzag flow path flow together with the grinding liquid while floating on the liquid surface, but if a large number of bubbles are generated, the support plates 31, 41, 51 and the partition wall 26 , 27, moves lower than the flow of the grinding fluid, reaches the through hole 21a, passes through the through hole 21a set higher than the liquid level, and flows into the inflow chamber 101 together with the grinding fluid. to go into. The grinding fluid that has passed through the zigzag flow path is sent to the next process from the inlet chamber 101 through the outlet (not shown) as described above, together with the solidified and enlarged flocs and the bubbles. The flocs and bubbles can be separated to obtain a completely regenerated grinding fluid. Also, the residue 1
When cleaning, after removing the grinding fluid and emptying the inside of the slag 1, the zigzag units 3, 4, 5 are pulled out using the handles 34, 44, 51, and the through holes 25a, 26a, 2 are cleaned.
7a, 21a to the introduction chamber 103, first, second, third
Zigzag chambers 104, 105, 106 and inflow chamber 10
If drain holes 6 and 7 are opened with 1 in the free luck state,
Impurities such as metal powder and abrasive grains deposited and deposited on the bottom wall 15 can be collected and easily discharged from the drain hole 1 through the drain holes 6 and 7. As described above, according to the present invention, a composite zigzag channel in the vertical and horizontal directions is formed in the pot, and the through hole is gradually enlarged in the direction of the channel, and the zigzag unit forming the zigzag channel is attached and detached. In addition, the support plate and partition wall that form the zigzag passage are configured to gradually become lower in the direction of the flow path, making it possible to completely separate impurities contained in the grinding fluid, eliminating the need to renew the grinding fluid, and making it compact. It has various notable effects such as making it possible to process the liquid, preventing bubbles generated during the treatment from flowing out of the pot, and making cleaning easier.

Although the present invention has been described with reference to an embodiment as a grinding fluid regenerating device, it is obvious that the present invention can be implemented in general wastewater treatment without departing from the gist of the present invention.
Brief explanatory drawings of the drawings show one embodiment of the present invention, and FIG. 1 is a plan view, FIG. 2 is a front view of the 0-Ro cross section in FIG. 1, and FIG. -m cross-sectional front view, Figure 4 is a W-N cross-sectional side view in Figure 1, and Figure 5 is a cross-sectional side view of W-N in Figure 1.
FIG. 6 is a front view of the second zigzag unit, and FIG. 7 is a front view of the third zigzag unit.

1...kasu, 3,4,5...zigzag unit, 31,4
1, 52...Support plate, 32,42,52...Overflow buttful, 3,43,53...Downflow buttfull, 25a, 33a, 31a, 26a, 43a41
a, 27a, 53a, 51a, 21a...through hole.

Figure 2 Figure 1 Figure 3 Figure 7 Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] 1. A zigzag unit that alternately combines a downflow buffle and an overflow buffle is removably arranged in a tank to form one zigzag channel of approximately the same width in the tank, and the bottom surface of the tank The distance from the overflow baffle to the lower end of the downflow baffle is configured to gradually increase along the flow path direction, and the upper end of the overflow baffle is set lower than the liquid level of the introduction part, and the upper end of these zigzag units and a liquid purification device, characterized in that the upper end of the overflow buttle is configured to be gradually lowered in the direction of the flow path.