JPS58186409A - Dynamic purifying apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a purification device for removing suspended solids. In particular, the present invention relates to a purification device for removing suspended solids which utilizes a medium and which purifies continuously in the downstream direction and which likewise continuously cleans the medium. The flow of influent water activates flocculent sediment (f
During bed cleaning, the media adhere to the floc-carrying particles as the influent water and the bed mix.

Island water used before water consumption or use in thermal power plants, factory facilities, or other industrial establishments, or used by municipalities in convenient water treatment equipment, is intended to purify turbid water streams. Various devices are known.

A purification device is one such device designed and used to purify turbid water or wastewater.

Such a device is found in its natural form in the early Binotans in reverse crawling. In these purifiers, a blanket was placed in the upper stream of the purifier to retain the solids. This reduces the content of floating oriented objects in the incoming stream.

In the case of sludge, the use of such purifiers presents the problem of the sludge passing through the blanket. In the case of sludge, as the sludge passes through the blanket, the turbidity decreases only slightly or not at all. This is because such turbid water usually becomes flocculent before it becomes a flocculent mass, and when a polymer is added, the particle size increases. solved by the fact that the

For example, the flow changes quickly and is well controlled.
Due to convection, radical failure of internal working parts, and when very cold fresh water is introduced into the purifier along with the incoming water, the sludge will pass through the blanket.

- Even today, when the sludge passes through the blanket and the water temperature is low and the suspended solids are small, it takes a very long time to clear. Traditional purifiers require a large area for purification, and add dissolved solids to the water, making the water unique.
It changes the

It is difficult to return the sludge generated from the purifier to water again.

Another type of common water treatment device is the use of sand filters. The sand filter has a downward flow (down fl
ow) type filters, which are effective for processing water where the influent has very low suspended solids levels. Significant disadvantages associated with the use of sand filters are discussed below.

Generally, such sand filters are in a series of processes that must be stopped and cleaned periodically. The pressure required to drive the stream through the device is increased by the continuous build-up of solids in the sand bed.

Clean water generally requires proper cleaning to restore it to its original state. The use of sand filters is highly susceptible to the composition of mud nols which will disable the sand filter device.

Sand filters generally have a low-level electrolytic capacity such that many "sites" (eg, where solid materials can be deposited) are never used during cleaning or cleaning and are discarded. Such devices are often provided with passages for mixing the media (when multifunctional media are required).In the cleaning means, large intermittent cleaning volumes and large interstitial air volumes are required. .Such large intermittent cleaning volumes result in large energy and operating cost increases.

Sand filters are generally limited to a very limited ability to treat suspended solids, such as up to 20 to 30 parts per million of the influent water.

Upflow sand filters require more fresh water to properly clean, and are generally comparable to downflow sand filters, except that Electrolyte's efficiency is slightly higher (than that of downflow sand filters). have the same drawbacks. • A tightly packed media bed is necessary for effective filtration of cloudy liquids. Such tightly tied media beds are often accomplished using downstream flow. Effective media cleaning is accomplished by simultaneously exposing and cleaning the media at a rate that provides a uniform flow of media in an upward direction. It is further desirable to wash unpurified water at a minimum washing rate.

US%iI! FM4,126,546 Hjalmuna (
HJ@Lmner) and others, Upward flow type continuous purification method U.S. Patent No. 2,057,887: Liquid purification device U.S. Special Fraud No. 3,395,099j'l R, D, To
huaon mineral method and method and means for backflow U.S. Patent No. 3,537,582 Container using sand U.S. Patent No. 3,581,895 Automatic backflow filtration system for swimming pools U.S. Patent @ 3,667.604 Transfer for liquid treatment Bed Apparatus U.S. Pat. No. 3,707,230 Ultrasonic Liquid Purifier U.S. Pat. No. 3,841,485 Automatic Backflow Gravity Filters The various devices described above are designed to allow backflow rather than continuous cleaning and purification. I have to. Other devices contemplate continuous cleaning and filtration; when the rate of flow increases, continuous filtration is either ineffective or the device becomes inoperable. The installed equipment is of the upflow type, and efficiency decreases during periods when the water temperature is cold, and the opportunity to fluidize the bed increases as the equipment increases.

Other devices use only a small portion of the flow through the device to clean the dirtiest parts of the filter media or stones or the like.

The present invention provides an apparatus for continuous purification and continuous purification of floc-carrying particles during dynamic purification of turbid water.

The present invention provides a device, preferably a cylindrical container, having a bottom and walls extending continuously upwardly and defining a liquid holding space therein. The cleaning is shown to be discharged through the outlet and the introduction of the turbid water to be cleaned is through the inlet.

The vertically extending bulkhead is generally concentric with the 94 walls of the tank and defines the area of the torus and the moving bed. A blower is located inside the annular ring, and during continuous cleaning of the moving bed, the blower releases air bubbles upwards.The annular area has a cleaning section at the bottom, a return section in the middle, and a disposal section at the top. . The air injection is partly created by a blower, which air is conveyed to the dirtiest parts of the moving bed in an annular cleaning section where it is removed and cleaned. In the washing section, the media floc-carrying particles are washed and spread to clean the moving bed. As the floc-supported particles rise, the individual particles immediately enter the return section where they become free flocs, and the return section returns the individual particles directly to the dense part of the moving bed area, while the condensed and separated flocs are transferred to the separation area for disposal. to go into.

The present invention does not require voice control. Further, the present invention does not increase the total amount of dissolved solids in the stream to be treated.

The present invention provides a dynamic purifier that quickly recovers in the event of a loss of functionality. This period of rapid recovery is usually replaced by one amount after the neutralizing action and can be, for example, about 10 minutes. This quick recovery period can make a difference in maintaining special equipment during operation.

The dynamic purifier according to the invention is less sensitive to temperature and suspended solids loading. There are no internally moving parts that could cause wear or functional deterioration.

The dynamic purifier according to the present invention requires only 10 to 15 inches of the area required by a typical purifier. Sludge can be easily separated from water.

The dynamic purifier according to the present invention is a continuous process in which cleaning is performed continuously during operation. The pressure required by the device is rather lower and a foot lower than that found in common types of sand filters. Mud goal (Mudb)
The composition of all ) is not a problem, it is to increase the efficiency of polyelectrite by backflowing sludge. All that is required for the operation of the dynamic purifier according to the invention is a single medium.

The dynamic purifier of the present invention has a low waste volume and a continuously low air volume.

The present invention provides a purification device capable of treating suspended solids at a high level of, for example, 500 parts per million or more.

The object of the invention is to provide a device which has the advantages of a high rate of cleaning power but a low rate of waste.

It is thus an object of the present invention to provide a purification device for liquids having high cleaning efficiency, utilization of both turbid inlet water and a high rate of cleaning, from which the inlet wash water is finally purified.

Another object of the present invention is to form a highly efficient bond between turbid water having particles which have not become flocculent and the activated sludge which has been pre-purified and brought into a flocculent state. It is an object of the present invention to provide a purification device having good contact.

Another object of the invention is to provide a purification device which is accomplished by using more than one step in continuous purification.

Another object of the invention is to provide a purification device with a simple control system. Yet another object of the invention is to provide a purification device that is easy to operate, simple in construction, and easy to maintain.

The present invention will be described below based on embodiments shown in the drawings. 1 and 2 show the most preferred embodiment of the apparatus according to the invention, which is designated by the numeral 10.

The continuous water moving purification device 10 has a container 12, and the answering device has a bottom portion 14, which has a convex shape, for example, as in the embodiment shown in FIGS. 1 and 2.

The container 12 is provided with a side wall 16, which is connected to the bottom 1.
The bottom end of 4 retains liquid in a liquid holding space 18 and is joined in a sealable manner to the side wall 16 and limited to the area of the bottom 14.

The side wall 16 widens upward to an upper end 19 , which is provided at the uppermost end surface of the purifier 10 .

The container 12 is typically provided with an interior space 18 which can contain a liquid, such as water, and be cleaned if, for example, the water becomes cloudy. Water surfaces W, S are shown diagrammatically in FIG. Also shown in FIG. 1 is a moving bed 20, which may be made of, for example, activated carbon, crushed walnut, shell, sand, or the like.

During operation (in FIG. 2), the moving bed 20 moves continuously in the direction of flow indicated by the arrow below.

The moving bed 20 generally occupies two parts: a dense floor section 33 and an annular enlarged section 350. The moving bed 20 contains a large number of floc-like carrier particles, individual particles and the like being movable within the vessel 12. Moreover, each floc-carrying particle is cleanable and has a large surface area, which also adsorbs particles of the waste water portion in order to remove the dirty portion of the inflow water.

This will be explained in more detail below. The purification device 10 is a purification device that performs continuous cleaning and continuous cleaning of the moving bed 20.

During operation, the moving bed 20 has dense sections. Reference numeral 33 denotes the dense portion of the movable bed 20. The dense portion of the bed 20 is provided with a passage portion through which inflow water for purification is passed, and the open portion is provided with flocs carrying suspended solid particles and floc materials tightly wrapped therein. The purpose is to adhere the supported particles and, desirably, to remove and treat the contaminated portion of the inflow water. The media-dense bed 20 portion 33 perforates the bulkhead 30 and the upper portion, is approximately located so as to be confined within the dead outlet plate 4θ, and has a surface surface at the top. At the bottom of the medium-density area 33, the inflowing water is continuously removed there, while the medium continuously returns again to the medium-density area 33. After the media of the bed has been removed from the lowest part of the densified portion 33, the floc-carrying particles of the individual media are continuously cleaned during expansion of the bed. During the cleaning of the moving bed, the entire influent water is used as wash water, while the occasional standstill is beneficial to include floc particles in the individual carrier particles, and during this continuous cleaning/washing, the incoming effluent is treated. Prepared for cleaning beforehand. Continuous washing/cleaning occurs in the annulus, which is discussed in more detail below.

A lower partition 30 is provided in the space 18 and the partition is preferably provided concentrically with the side wall 16.

The lower corner 1i30 terminates at its lower end 31, spaced above the bottom 14, and preferably the outlet plate 40 is conical. 32 is the upper end of the bulkhead where the lower bulkhead 30 intersects with the portion 35B, and the diameter of the upper portion indicated by reference numeral 37 is made as small as possible than the diameter of the bulkhead 30, h.
Ru. The upper corner @37 has a smaller diameter than the diameter of the septum 30, and the lower end 39 also communicates with the portion 35B.

The space between the partition wall 30.37 and the side wall 16 of the container defines therebetween an annular portion 35, each having a different diameter, which forms a transition portion forming a return portion 35B of the annular portion 35. At the top and bottom of the Dimension I shown in Figure 1
II D t is the thickness of the smaller annular portion 35 between it and the underlying lower partition wall 30, while dimension line D3 is the thickness of the larger annular portion between it and the lower partition wall 37.

The annular portion 35 is thus divided into three ranges. These ranges are designated 35A to 35C, each 35A
35B is a cleaning section, 35B is a return section, and 35C is a waste section. In the cleaning section 35A, the bed ti is expanded and cleaned, while in the return section 35B, the diameter of the agglomerated section 35B is reduced by returning the individual particles to the platform section 33 of the bed, as schematically indicated by arrow 200 in FIG. In the waste section 35C, the aggregated and separated flocs are removed from the individual floc-carrying particles and conveyed therefrom to an upper outlet channel 70 during washing and cleaning.

A purified water outlet 60 is located in the bottom 14 of the container 12 and below the perforated plate 40. The wash water is discharged through a gutter 70 provided at the top and is further discharged from there through a V-shaped weir 75. The location of the bed 20 with the filter medium, designated 'L#, is within the lower bulkhead 30 which defines the bed area of the media approximately below the return portion 35B. The platform portion 33 of the bed typically contains a dense media which purifies the liquid as the flow is downstream towards the plate 40. The artificial header 80 should be purified after passing through the control valve. A suitable metering line 8 allows the flow of water to be directed into the container 12.
2 is connected to a level controller LC which can vary the flow entering through the header 80 in response to the water level in the trench 70.

Flow entering through header 80 enters vessel 12 at opening 81.
and then into a distribution pipe 83 located at the bottom of the annular portion 35 and formed in a circular shape and running around the circumference of the container 12 near the lower end 310 of the septum 300. The inlet opening 81 can be connected to the annular pipe 83 by means of a wooden or similar connecting member to the annular distribution pipe by welding or by a suitable support welded to the side wall 16.

In operation, for example, polymer and air are directed to overflow header 80 in lines 84 and 85, respectively, before being directed through openings into annular distribution pipe 83. The supply of air passes through the lower end 31 of the bulkhead 30 and the annular portion 35 formed between the container wall 16 and the bulkhead 30, providing the motive force for moving the moving bed 20 at least partially upward. The floc-supported particles enter the annular part 35 in the washing part 35A, are loosened and suspended by the upward flow in the annular part 35, and further in the lump part 35, the area of the annular part is washed by air and moved to a moving bed. Expand 20. When the moving bed 20 rises above the partition wall 30, the upper S surface returns 11535BK, the cross section of the annular portion 35 increases from dimension D1 to dimension D2 as shown in FIG. The velocity decreases below the capture rate of , and the floc-carrying particles then settle to the surface of the media bed 20 within the septum 1130. The velocity in the annulus 35 (indicated by arrow 200 in FIGS. 1 and 2) is still high enough for the waste section 35C to carry the "floc" particles to the outlet 70. is controlled by a level controller LC, and is installed at a level passing through a weir 75 cut into a figure 7 shape by a control input valve ■.An annular distribution header 83 has holes at regular intervals, and is installed at a level passing through a weir 75 cut in a figure 7 shape by a control input valve ■. , allowing air and polymer to be ejected into the annulus 35 in a uniformly distributed manner.The holes in the distribution header 83 face downwardly so that they cannot be clogged by individual 70-carrying particles. Very little. A deflector plate 88 is placed below the distribution header to prevent short flow detours. The holes in the distribution header 83 can be made large enough to allow debris to pass through them without clogging.

An outlet plate 4o located at the bottom of the container 12 is provided with a conical hole, and a gap is provided between the bottom end 31 of the partition wall 30 and the outlet plate 4o. The drained wash water exits the gutter 70 and the figure 7 weir 75 and is discharged through the discharge pipe 76. A continuous nozzle is formed between plates 90.91 attached to the upper and lower side walls 30.37, respectively, facing inwardly in FIGS. 1 and 2. The nozzle can also be drilled into the plate 90.

A nozzle 50 (partially shown) can be attached to a skirt P that can be connected between the upper part of the lower bulkhead 30 and the lower part of the upper bulkhead 37.

In FIGS. 4 and 5, staggered annular return portions 35B are illustrated. In FIG. 5, a pair of nozzles 50 separate individual floc-supported particles through bed-mediated anastomosis 11s.
Return to 33. In FIG. 4, the continuous lip (lower bulkhead 30
) is separated from the lower lip of septum 37 .

Many different embodiments can be made within the scope of the inventive concept described herein, and even more modifications can be made with respect to the requirements described in the statute, and the nine embodiments described herein. It is to be understood that the description is to be interpreted as illustrative and does not constitute the scope of the invention.

[Brief explanation of drawings]

FIG. 1 is a schematic cross-sectional perspective view of the device according to the invention;
2 is a longitudinal cross-sectional view of the device according to the present invention, FIG. 3 is a cross-sectional view taken along line 3--3 in FIG. 2, FIG. 4 is a partial perspective view showing a second embodiment of the present invention, and FIG. The figure is a partial perspective view showing a second embodiment according to the present invention. 10... Purification device 12... Container 14...
Bottom part 16...Side wall 18...Internal space
20... Moving floor 30... Lower bulkhead 33.
...Floor 35...Annular i 35A...Cleaning section 35B...Return section 35C...Disposal section 40.
・Exit board. Procedural amendment (formula 2 1. 11 indications 1939 patent application No. 1 FrDJ" No. 25υ) Name is powerful, / dispute is invalid. 3. Person making the amendment Relationship with the matter Applicant: 1 Yar→Shu→Kenkensu Name: Ro1 Rudoei 7j”-2'4, Agent 8, Contents of amendment as shown in the attached sheet

Claims (1)

[Claims] 1.a. A container having a bottom and a side wall that continuously expands upward from the bottom, the inside of which serves as a liquid holding space, for directing the flow of water to be purified into the container. an inlet means for discharging purified water from said container; a mobile purification bed located in the predispensing container; said bed being airtight for passing the purified water in a downward flow during operation; e. an annular container provided within said container; f. circulation means within said container for circulating the dirtiest part of said bed from said dense portion to said annular container; , said circulation means includes a ventilation device located at least partially at the bottom of said annular shape, and further g. after cleaning, said circulation means is returned to said moving bed within said annular region against the upper surface of said dense part. A dynamic purification device comprising: means within a container; 2. The container is provided with an annular cleaning section at the bottom of the container, an annular return section at the center of the container, and an annular waste section at the top of the container, and the moving bed section is arranged in an upward direction in the container. A portion of the moving bed is cleaned in the washing section in response to the flow, and a portion of the moving bed is cleaned after the washing is returned to the top of the moving bed in the return section, while the waste section is cleaned of the contaminated particles. 2. The device according to claim 1, wherein the device is discharged into a discharge means. 3. The return means includes at least a partial enlargement of the annular portion, and the opening in the annular portion includes a portion of the liquid holding space of the container above the dense portion of the floor. A device according to scope 1. 4. The dynamic pump according to claim 1, wherein the inlet means is located at the lowest part of the annular part, and the inflow water is mixed in the transfer bed part in the annular part. Purification device. 5. a. A container having a bottom and a wall extending continuously upward and defining a liquid holding space therein, an inlet means for adding a stream of water to be purified to the container C9, for introducing purified water from the container. discharge outlet means d for discharging, weir means for discharging excess liquid from said container in the upper part of said container side wall, responsive to the longitudinal level of the liquid therein to a level above said weir means; e. a vertically extending septum, said septum terminating at one end thereof and spaced above said bottom, and further having an upper end spaced from said weir means thereon, said septum terminating at one end thereof and spaced from said weir means thereon; defines a bed region and a continuous cleaning annular region, the method region and the continuous cleaning annular region partially communicating at the lowermost ends of each, f. a moving bed is located within said vessel, said moving bed at least during operation, air blowing means is used to create an upward flow in the annular container, and in response to the upward flow, placing said media in the annulus, h, return means in said partition between the upper and lower ends and the media upper surface level for returning the media from said annulus to said media bed; purification equipment. 6. The device according to claim 5, characterized in that the annular portion extends into the area of the media bed. 7. Apparatus according to claim 5, characterized in that the blowing means is located at the bottom of the annular portion and at least partially includes a distribution header. 8. The apparatus of claim 5, wherein said bottom portion is convex and further wherein said discharge outlet means has an opening formed in said convex portion. 9. Said opening means partially comprises a header attached to a side wall of said container, further provided with an opening in said side wall, in said header, said header directing the flow of liquid from said header to said container through said gap i. 6. Device according to claim 5, characterized in that it allows passage into the container. 1. The apparatus according to claim 5, wherein the weir means has a V-shaped weir provided at least in part in the upper part of the container. 11. Device according to claim W5, characterized in that 111m of the container is cylindrical and the internal partition is likewise cylindrical and substantially concentric with the side wall. 6. The apparatus according to claim 5, wherein the cleaning medium is activated carbon, sand, or crushed walnut shell. 13. Apparatus according to paragraph 5 of the patent application, wherein the blowing means includes an at least partially annular distribution header within the container at the lowermost end of the annular shape. 14. The apparatus of claim 13, wherein the distribution header is provided with a plurality of spaced apart air exhaust openings. door, to the inlet means before filling the container with water? 6. Apparatus according to claim 5, characterized in that it includes polymer jetting means for applying a flow of reamer. 16. The device according to claim 5, wherein the air blowing means is installed in the container in a vertical direction substantially equal to the vertical direction of the lowermost end of the partition wall. 17. Claims characterized in that the level control means controls the level of liquid in the container during operation.
Apparatus according to paragraph E5. 18. The apparatus of claim 5, wherein said return means in said partition includes nozzle means. A special IP characterized in that the partition wall has a cross-sectional area above and below the nozzle means! F Claim No. 18
Equipment described in Section. The nozzle means includes a pair of downwardly dependent nozzles, at least in part attached to the bulkhead at its top, and the bulkhead is generally cylindrical and in two parts, the top being smaller in diameter and the bulkhead having a lower diameter. According to item 18 of the patent application, the lower part has a larger diameter of the nozzle, and the nozzle is located in a transition portion between the lowermost part and the uppermost part of the partition wall. Nozzle as described.