JPH0526113U - Continuous solid-liquid separator equipped with spiral rotating plate - Google Patents

Abstract

(57) [Abstract] [Purpose] The separation gap of the spiral separator is appropriately set and adjusted to enhance the capacity and accuracy of solid-liquid separation, and the spiral separator is vibrated to promote solid separation and removal. The solid-liquid separation treatment efficiency is improved by preventing the clogging due to the above and continuously separating the solid from the liquid without interrupting the operation of the separation device. [Structure] A spiral separator having a separation gap formed by spirally winding a metal wire or the like is installed in a separation device, and an outlet of the separation liquid of the spiral separator is connected to a separation liquid outflow pipe of the separation device, A spiral rotary plate is rotatably inserted close to the outer surface of the spiral separator, and the stock solution is pressure-supplied from the stock solution inflow pipe into the separation device to separate solids into each separation gap of the spiral separator. The solids trapped in the solid and dropped by vibration are carried out to the solid outflow pipe of the separation device by the spiral rotating plate, the separated liquid is made to flow into each of the separation gaps of the spiral separator, and the outlet of the spiral separator is provided. After that, the liquid is collected in the separated liquid outflow pipe of the separation device.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 INDUSTRIAL APPLICABILITY The present invention uses a liquid such as a coolant discharged from a machine tool or the like, a suspension such as cutting powder or metal powder and a particulate matter such as a cutting material or a crushed material, or sand to be treated by a water treatment device or the like , Suspended solids such as mud and liquids such as sewage and wastewater containing particulates such as gravel and stones, or suspended powders of precious metals such as gold and platinum generated in metal working equipment. The present invention relates to an apparatus for separating a suspension and a particulate matter (hereinafter referred to as a solid) from a liquid such as a cleaning liquid containing a particulate matter such as a cut product or a crushed product.

[0002]

[Prior Art]

 Conventionally, in order to perform solid-liquid separation, a screen or a perforated plate was attached to the separation device to separate the suspension in the stock solution. There is nothing that can be easily adjusted, and as a result of solids adhering to and accumulating on screens, perforated plates, etc., resulting in clogging, the separation process is often impossible. It is necessary to clean the screen and the perforated plate.In some cases, the dismantling of the equipment is time-consuming, and the cleaning of the screen and the perforated plate is complicated, and it takes time. There was a flaw.

In addition, the spiral separator is inserted into the separation device, the stock solution is pressurized and supplied to the outer surface of the spiral separator, and the solid is captured and separated on the outer surface of the spiral separator. The solid in the stock solution was separated by flowing the liquid into the inside of the spiral separator from the separation gap on the outer surface and collecting the liquid outside the spiral separator. As a result of solids adhering to and accumulating on the side surfaces and separation gaps, resulting in clogging, the separation process became impossible, and it had the same drawbacks as in the case described above.

[0004]

[Problems to be solved by the device]

 The present invention easily sets and adjusts the separation gap of the separator to enhance the separation capacity and separation accuracy of solid-liquid separation, and vibrates the spiral separator to accelerate the separation and removal of solids and to promote solid separation. This is to prevent clogging due to the above, and to further improve the solid-liquid separation treatment efficiency by continuously separating the solid from the liquid without interrupting the operation of the separation device and cleaning the spiral separator.

[0005]

[Means for Solving the Problems]

 In the present invention, an elastic metal wire or synthetic resin wire is spirally wound to form a spiral separator having a separation gap between windings, and this spiral separator is provided with a solid outflow pipe at the top. In addition, it is installed in the separation device with a stock solution inflow pipe at the bottom so as to close both ends of the separation device, spaced apart from the inner surface of the separation device, and the separation liquid outlet at the lower end of this spiral separator is A spiral rotary plate that connects to the separated liquid outflow pipe provided at the bottom of the separation device and that vibrates the spiral separator is placed close to the outer surface of the spiral separator so that the spiral separator can rotate. The solid solution containing the solids is inserted and pressurized between the inner surface of the separation device and the outer surface of the spiral separator, and the solid is captured and separated in each separation gap and the outer surface of the spiral separator. The solid is carried out to the solid outflow pipe provided in the separation device by the spiral rotating plate. At the same time, the separated liquid is made to flow into the inside of the spiral separator through each separation gap of the spiral separator, and is collected in the separation liquid outflow pipe provided in the separation device via the outlet of the spiral separator. The present invention relates to a continuous solid-liquid separation device provided with a spiral rotary plate.

Further, according to the present invention, the spiral rotating plate described above is eccentrically arranged with respect to the spiral separator, and is placed close to the outer surface of the spiral separator so as to be rotatably inserted into the spiral separator. Therefore, the present invention relates to a continuous solid-liquid separation device provided with a spiral rotary plate which gives a large vibration to the spiral separator and carries the separated solid to a solid outflow pipe provided in the separation device. Furthermore, the present invention sprays pressurized stock solution, separation liquid, or pressurized air, or both, onto the above-mentioned spiral separator so that solids that adhere to and accumulate in each separation gap and outer surface of the spiral separator in a short time. The present invention relates to a continuous solid-liquid separation device provided with a spiral-shaped rotating plate that is peeled off.

[0007]

【Example】

 FIG. 1 is a cross-sectional view showing a state in which a spiral rotary plate 3 is rotatably inserted in a spiral separator 2 in a separator 1, and the spiral separator 2 is elastically subjected to, for example, a sub-zero curing treatment. A stainless steel wire having excellent properties is wound in a spiral shape, that is, a coil spring shape, and a separation gap 7 is formed between the windings. The separation gap 7 can be easily and easily set and adjusted to an arbitrary width by pulling it, pulling it, or pressing it. Therefore, the separation gap 7 is appropriately determined according to various solid-liquid separation purposes. The spiral separator 2 separates a solid from a stock solution. The stock solution is pressurized and supplied to the outer side surface 6 of the spiral separator 2, and the solid is separated at the separation gap 7 and the outer surface 8 of the spiral separator 2. In addition, the separated liquid is made to flow into the inside of the spiral separator 2 through the separation gap 7 of the spiral separator 2 to collect the liquid.

The type of the spiral separator 2 is a pulling spring type in which the separation gap 7 of the winding is set to a constant width by pulling (the space retention is high), and the separation gap 7 of the winding is pressed. A push spring type that sets a constant width (useful for backwashing because the separation gap widens when released), set the width of the winding separation gap 7 to a constant width by twisting without pulling or pressing There are three types of torsion springs (having good mountability in the device), and all of the spiral separators 2 have elasticity (vibration). Especially, the torsion spring type is a natural body. Therefore, it is highly elastic. In addition, there are two types of winding methods for the winding of the spiral separator 2; right winding and left winding.

As a material for the spiral separator 2, the above-mentioned sub-zero-hardened stainless steel wire is most suitable because it is highly elastic, but in addition to this, ordinary stainless steel wire and synthetic resin wire are also available. , Or an iron wire coated with a synthetic resin, as long as it has elasticity and physical strength, any material may be used. The diameter and length of the spiral separator 2 are appropriately determined according to the processing conditions such as the type of solid in the liquid, the solid concentration, the purpose of separation, the accuracy of separation, etc., but in the usual case, the diameter is 1 to 50 cm. It is advisable to use one having a length in the range of 10 to 500 cm. The wire diameter of the winding forming the spiral separating body 2 is preferably about 1 to 8 mm, and the interval between the windings of the spiral separating body 2 separating the solid body is about 0.5 to 5 mm. , If the length of the spiral separator 2 is the same, the wire diameter and the interval of the winding are small, and the separation area is large and the separation accuracy is good, but the separation flow rate decreases due to the increase in the liquid flow resistance. There are also problems such as a decrease in separation capacity due to increased clogging, a reduction in separation time, and the like, which is the opposite of the above case when the winding wire diameter and spacing are large. The wire diameter and spacing will be determined in the optimum range by considering the processing conditions such as the type of solid in the liquid, the solid concentration, the purpose of separation, and the separation accuracy.

[Figure 1]

Further, as shown in FIG. 2, a solid outflow pipe 4 is provided at the upper part of the separation device 1, and a stock solution inflow pipe 5 is provided at a lower side part of the separation device 1, and inside the separation device 1, Both ends of the spiral separator 2 are closed, and the spiral separator 2 is installed with a space between the spiral separator 2 and the inner side surface of the separator, and the outlet of the separation liquid at the lower end of the spiral separator 2 is connected to the separator. 1 is connected to the separated liquid outflow pipe 6 provided at the lower part. Then, the spiral rotary plate 3 is rotatably attached to the spiral separator 2 such that the inner end of the spiral rotary plate 3 is close to the outer surface 8 of the spiral separator 2, and the spiral rotary plate 3 has a spiral shape. The solid separator 2 is vibrated to separate solids, and the solids that have fallen into the separator 1 and accumulated therein are carried out to the solid outflow pipe 4. The spiral rotary plate 3 is connected to the fixed plate 11 attached to the rotary shaft 10 of the motor 9 provided in the separating device 1, but other rotating means other than the motor 9 may be used.

Then, the undiluted solution (coolant waste solution) is pressed into the space between the inner surface of the separation device 1 and the outer surface of the spiral separating member 2 through the inflow pipe 5, and at the same time, the motor 9 is driven to move the spiral rotating plate 3 By rotating, the separation gap 7 of the spiral separator 2 is evenly adjusted, and the separation gap 7 of the spiral separator 2 and the outer surface 8 separate the solid in the stock solution. On the other hand, the separated liquid that flows into the inside of the spiral separator 2 through the separation gap 7 of the spiral separator 2 and collects the separated liquid is provided in the separation device 1 from the outlet at the lower end of the spiral separator 2. It flows out of the separation device 1 through the outflow pipe 6, is stored as a separated liquid (coolant) in a storage tank, and is reused as necessary. Further, the solids trapped and attached to the separation gap 7 and the side surface of the outer side surface 8 of the spiral separator 2 are separated from the separation gap 7 of the spiral separator 2 due to the vibration of the spiral separator by the spiral rotary plate 3. Although it separates from the outer surface 8 and falls to the bottom of the separator 1 and accumulates, when the amount of accumulated solids reaches a certain level, the scraping action and cyclone action caused by the rotation of the spiral rotary plate 3 efficiently removes the solids. It is carried out to the solid outflow pipe 4, and discharged as solid (sludge) to the outside of the separator 1.

[Fig. 2]

One of the reasons why the spiral separator 2 is vibrated by the spiral rotary plate 3 is that the spiral separator 2 itself has a separation gap 7 for separating solids. The separation gap 7 may become uneven and uneven due to liquid pressure or the like, and may be narrowed or widened to adversely affect the separation of solids. Therefore, by applying vibration to the spiral separator 2, This is to eliminate the bias and ensure a uniform separation gap 7 on all sides. Another reason for vibrating the spiral separator is that the solids attached to and accumulated on the spiral separator 2 are separated and dropped by vibrating the spiral separator 2. The material of the spiral rotary plate 3 is also the same as that of the spiral separator 2 described above. The spiral interval is large in the solid content of the stock solution, and is easily attached to the spiral separator 2. In the case of an undiluted solution containing solids, the interval is narrow, and the content of undiluted solids is small, but it is wide in the case of undiluted solution containing solids that are difficult to adhere to the spiral separator 2. Normally, the distance will be 3 to 10 cm. The rotation speed of the spiral rotary plate 3 is preferably 10 to 100 r.p.m, and sometimes the spiral rotary plate 3 may be intermittently rotated, or may be reversely rotated at regular intervals.

As shown in FIG. 3, the spiral rotating plate 3 is slightly eccentric to the spiral separating plate 2 without inserting the insertion port of the spiral rotating plate 3 into the center, and the spiral rotating plate 3 is rotated. By slightly shifting the eccentric position of the insertion opening of each blade of the plate 3, the degree of contact with the spiral separator 2 becomes large, and the spiral separator 2 can be given strong vibrations that wavy as a whole. .

[Figure 3]

Under the processing conditions such that the undiluted solution contains a large amount of solids or contains solids that easily adhere to the spiral separator 2, the separation gap 7 and the outer surface 8 of the spiral separator 2 are attached. In some cases, the solids deposited and accumulated cannot be separated only by rotating the spiral rotary plate 3. Therefore, in such a case, the stock solution or the pressurized liquid applied to the outer surface 8 of the spiral separator 2 is pressed. When air or both are blown and the solid is peeled off with the vibration of the spiral rotary plate 3, the solid peeling property is remarkably improved. For washing solids, the pressurized separation liquid, pressurized air, or both are blown in a reverse flow direction from the inside of the spiral separator 2 toward the outer surface 8 to remove the separation gap 7 of the spiral separator 2 and the outside. When the solid attached and accumulated on the side surface 8 is peeled off together with the vibration by the spiral rotary plate 3, the peeling property of the solid is the best.

In order to wash solids, the separation device 1 and a stock solution storage tank (not shown) are connected to each other through a pipe provided with a pump, and a part of the stock solution stored in the storage tank is pumped into a spiral separator 2. Air may be blown, and a pressurized air storage tank (not shown) is connected by a pipe with a valve, and a portion of the pressurized air stored in the storage tank is opened by a valve to form a spiral separation. Air may be jetted onto the body 2. When spraying the stock solution and air at the same time, an ejector may be attached to the pipe and the air sucked from the ejector may be sprayed together with the stock solution onto the spiral separator 2. Further, when the separated liquid is sprayed onto the spiral separator 2, the separated liquid pressurized by the separated liquid outflow pipe 6 is sprayed into the spiral separator 2 in a reverse flow state to separate the separated gap of the spiral separator 2. Reverse injection from 7 is sufficient. It is sufficient that the spraying speed of these cleaning liquids is in the range of 1 to 15 m / sec, and the spraying speed of air may be in the range of 30 to 100 m / sec.

[0016]

[Effect of the device]

 According to the present invention, the separation gap 7 of the spiral separator 2 can be easily set and adjusted to an arbitrary width in accordance with various solid-liquid separation purposes, so that the separation capacity and the separation accuracy are significantly improved. The solid that adheres to and accumulates on the spiral separator 2 can be spirally formed by the vibration of the spiral separator 2 or the combined use of pressurized stock solution, separation liquid, air and the like. Since solids that have adhered to and accumulated on the separator 2 can be easily peeled off and removed, there is also no merit that the spiral separator 2 is clogged with solids, and solid-liquid separation can be continuously performed for a long time. is there. In addition, since solids do not adhere to and accumulate on the spiral separator 2, disassembly of the apparatus and spiral separators that have been conventionally performed by interrupting the separation process when clogging by solids occurs. It eliminates the need for time-consuming and labor-intensive cleaning operations such as peeling off solids, cleaning, etc., and has the advantage of dramatically improving separation processing efficiency and lowering the running cost of the equipment. Further, according to the present invention, the solids dropped and accumulated in the lower part of the separation device 1 can be efficiently carried out to the solid outflow pipe 4 by the scraping action and the cyclone action caused by the rotation of the spiral rotary plate 3. According to the separation device of the present invention, the coolant and the iron powder etc. are suspended from the coolant waste liquid containing the suspension of cutting chips, metal powder etc. discharged from machine tools etc. and the particulate matter such as cutting materials, crushed materials etc. Engine oil can be collected as a valuable resource and reused from engine oil waste liquid containing particulate matter such as crushed material and crushed material, and a suspension of precious metal powder such as gold and platinum generated in metal processing equipment and precious metal cutting. Noble metals such as gold and platinum can be recovered as valuables from the cleaning liquid that contains particulate matter such as debris and crushed material, and can also be reused, as well as suspensions and gravel such as sand and mud that are subject to treatment by water treatment equipment. Separation of various other solids and various liquids, such as the removal of suspended solids and particulates from sewage and wastewater containing granular materials such as stones, etc. to obtain clean treated water. You can

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a state in which a spiral rotary plate is rotatably attached to a spiral separator of the present invention.

FIG. 2 is a cross-sectional view showing a state where a spiral separator having a spiral rotary plate of the present invention rotatably inserted therein is installed in a separator.

FIG. 3 is a cross-sectional view showing a state in which an insertion opening of a spiral rotary plate to be inserted into the spiral separator of the present invention is eccentric.

[Explanation of symbols]

 1 Separation Device 2 Spiral Separator 3 Spiral Rotating Plate 4 Solid Outflow Pipe 5 Undiluted Liquid Inflow Pipe 6 Solid Outflow Pipe 7 Separation Gap 8 Outer Side

Claims (3)

[Scope of utility model registration request] 1. A spiral separator having spirally wound elastic metal wire or synthetic resin wire or the like and having a separation gap between windings, a solid outflow pipe being provided on the upper side, and a stock solution flowing into a side part. It is installed at a distance from the inner surface of the separation device provided with a pipe, and the outlet of the separation liquid at the lower end of the spiral separator is connected to the separation liquid outflow pipe provided at the bottom of the separation device, and further spiral A spiral rotary plate that gives vibration to the separator is rotatably inserted close to the outer surface of the spiral separator so that the stock solution containing solids is between the inner surface of the separator and the outer surface of the spiral separator. The solid is trapped in each separation gap and the outer surface of the spiral separator and separated, and the solid is carried out to the solid outflow pipe provided in the separator by the spiral rotating plate, and the separated liquid is spiraled. Flow into each spiral separator through each separation gap. A continuous solid-liquid separation device provided with a spiral rotary plate that collects liquid into a separation liquid outflow pipe provided in the separation device via an outlet of the spiral separator. 2. The spiral rotation plate which gives a large vibration to the spiral separator by eccentrically mounting the spiral rotary plate of claim 1 on the spiral separator and rotatably loading the spiral separator. A continuous solid-liquid separator equipped with a plate. 3. The spiral stock according to claim 1 or 2 is sprayed with a pressurized stock solution, a separation liquid, or pressurized air, or both, and adheres and accumulates in each separation gap and the outer surface of the spiral separation body. A continuous solid-liquid separation device equipped with a spiral rotating plate that separates solids in a short time.