JP4011955B2 - Table feeder and wastewater, sludge and liquid waste treatment system equipped with table feeder - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a table feeder which is a device for continuously and quantitatively supplying a stored material such as a granular material stored in a storage tank using a rotary table, a table feeder particularly suitable for supplying short fibers, and The present invention relates to a wastewater, sludge and liquid waste treatment system equipped with a table feeder.
[0002]
[Prior art]
A table feeder is a supply device that supplies powder, fluid, and the like continuously and quantitatively using a rotary table. This table feeder includes a storage tank for storing powder particles, a rotary table disposed at the bottom of the storage tank, and a stirring means for stirring the powder particles in the storage tank. The rotary table includes a plurality of measuring chambers in the circumferential direction of the outer peripheral portion. Then, by rotating the rotary table in a predetermined direction and moving each measuring chamber, the granular material in the storage tank is introduced into the measuring chamber, and the introduced granular material is discharged at the discharge port.
[0003]
Therefore, by defining the volume of the measuring chamber and the number of rotations of the rotary table, the powder and granular materials stored in the storage tank are continuously and quantitatively supplied to the discharge port.
[0004]
[Problems to be solved by the invention]
This table feeder is also used as an apparatus for quantitatively supplying short fibers. Typical short fibers have a thickness of several μ to 1 mm and a length of 1 mm to several cm, and are obtained by cutting chemically synthesized fibers or natural fibers. For example, short fibers obtained by cutting a PET bottle as a dehydration aid in sewage treatment. Fiber is used. However, when handling short fibers with a table feeder, there are the following problems to be solved.
[0005]
(1) Difficult to supply quantitative amounts:
Short fibers are entangled with each other, and tend to become dense when compressed. Accordingly, short fibers are difficult to flow into the measuring chamber in the introduction area of the rotary table, and it is difficult to supply a fixed amount.
[0006]
(2) Stirring blade rotation failure:
If the short fibers in the storage tank are not sequentially introduced into the measuring chamber, the short fibers are difficult to flow in the storage tank, and are pressed between the stirring blade and the storage tank wall to be in a dense state. As this state progresses, a large amount of power is required to rotate the stirring blades, and rotation failures of the rotating blades occur.
[0007]
(3) Requires vibration means:
By providing a vibrator as a vibration means in the entire table feeder, the above-described problems of quantitative supply and stirring blades can be improved to some extent. However, stable weighing becomes difficult due to vibration. Also, the equipment cost is high.
[0008]
(4) Exhaust gas treatment is required:
When the short fibers discharged from the discharge port are transported by pressurized air flowing through the transport pipeline, a large amount of air is discharged, for example, into the interior of the transport destination, and this indoor air is discharged outside the room. Therefore, for example, when odorous gas is present in the room, exhaust gas treatment for deodorizing the discharged air is required.
[0009]
(5) Water affinity of short fibers is desired:
When supplying short fibers as dewatering aids such as drainage and sludge, the short fibers that are conveyed by air are not easily adapted to water and difficult to mix with the object to be treated. Therefore, improvement of the water affinity of the conveyed short fiber is desired.
[0010]
The present invention has been made in view of the above-mentioned facts, and its technical problem is that in a table feeder that is a device that is provided with a rotary table and quantitatively supplies the contents in the storage tank, there are problems in handling short fibers, Table feeder that solves difficult supply, rotation failure of stirring blade, vibration means required, exhaust gas treatment required, improvement of water affinity of short fiber, etc., as well as drainage, sludge with table feeder, It is to provide a liquid waste treatment system.
[0011]
[Means for Solving the Problems]
According to the first aspect of the present invention, a plurality of measuring chambers, which are rotatably arranged at the bottom of the storage tank and introduce the contents in the storage tank and discharge it to the discharge port, have an upper opening and a lower opening. A rotary table formed at intervals in the circumferential direction, and a stirring means having one or more stirring blades that are arranged on the same axis as the rotary table so as to be freely rotationally driven and extend radially. With
Each of the weighing chambers is rotated through the introduction area and the discharge area, and the upper opening is opened in the storage tank in the introduction area, the lower opening is opened in the discharge opening in the discharge area, and the discharge means provided in the storage tank is discharged. Pressurized air is blown from the side of the upper opening toward the outlet,
The stirring blade is a table feeder comprising a guide blade for guiding the contents in the storage tank to the upper opening of the measuring chamber.
[0012]
The guide blades provided on the stirring blades guide the short fibers so that they are pushed into the measuring chamber, and the short fibers introduced into the measuring chamber are reliably discharged to the discharge port by the pressurized air, thereby ensuring the fixed quantity. To be able to supply.
[0013]
According to a second aspect of the present invention, in the table feeder according to the first aspect, the guide blade includes an inclined surface extending in the vertical direction with the upper opening side being rearward in the rotation direction of the stirring blade. is there.
[0014]
Then, by inclining the guide vanes, a downward force is applied to the short fibers toward the upper opening of the measuring chamber so that the short fibers can be effectively guided to the measuring chamber.
[0015]
According to a third aspect of the present invention, in the table feeder according to the first or second aspect, the storage tank is provided with an annular space whose upper portion is closed above the measuring chamber and the guide vanes.
[0016]
By providing the annular space, the short fibers are prevented from being compressed and dense in the portions of the measuring chamber and the guide vanes.
[0017]
According to a fourth aspect of the present invention, in the table feeder according to any one of the first to third aspects, the stirring blade includes a branched blade extending upward.
[0018]
The short fibers are also agitated by the branch blades to improve the flow of the short fibers in the storage tank.
[0019]
A fifth aspect of the present invention is the table feeder according to any one of the first to fourth aspects, further comprising a pressurizing means for pressurizing and holding the inside of the storage tank at a predetermined pressure.
[0020]
And the discharge | release of the short fiber to a discharge port is made easier by pressurizing and hold | maintaining the inside of a storage tank to a predetermined pressure.
[0021]
The invention described in claim 6 is an apparatus for injecting a fibrous drug, a mixing tank for mixing the fibrous drug and the water to be treated from the injection apparatus, and aggregating and precipitating the water to be treated through the mixing tank. A coagulating sedimentation tank that separates sludge and treated water, or a floating tank that separates floss and treated water,
The injection apparatus includes: an ejector provided in a fluid conveyance line connected to the mixed layer; and a table feeder that supplies the fibrous medicine to a fluid ejection portion of the ejector. Is a wastewater treatment system.
[0022]
In addition, the invention described in claim 7 includes an injection device for a fibrous drug, a mixing tank for mixing the fibrous drug from the injection apparatus and an object to be processed, and an object to be processed through the mixing tank. A dehydrator that separates the dehydrated cake into a separated liquid,
The injection apparatus includes: an ejector provided in a fluid conveyance line connected to the mixed layer; and a table feeder that supplies the fibrous medicine to a fluid ejection portion of the ejector. Is a sludge treatment system equipped with
[0023]
Furthermore, the invention described in claim 8 is an apparatus for injecting a fibrous drug, a mixing tank for mixing the fibrous drug and liquid waste from the injection apparatus, and an object to be processed through the mixing tank. The injection device comprising a screen for separating the concentrate and the separation liquid, an ejector provided in a fluid conveyance line connected to the mixed layer, and a table feeder for supplying the fibrous drug to a fluid ejection portion of the ejector And a liquid waste processing system including a table feeder.
[0024]
In the treatment of wastewater, sludge, and liquid waste, the table feeder allows the chemical to be quantitatively injected into the object to be treated and the required amount to be adjusted according to the amount of the object to be treated. By the suction action, the injection can be performed more effectively and reliably.
[0025]
According to a ninth aspect of the present invention, in the processing system according to any one of the sixth to eighth aspects, the table feeder is rotatably disposed at the bottom of the storage tank so that the contents in the storage tank can be stored. A plurality of weighing chambers that are introduced and discharged to the discharge port have an upper opening and a lower opening and are formed at intervals in the circumferential direction, and rotate on the same axis as the rotation table above the rotation table. Agitating means having one or more agitating blades that are arranged to freely drive and extend radially,
Each of the weighing chambers is rotated through the introduction area and the discharge area, and the upper opening is opened in the storage tank in the introduction area, the lower opening is opened in the discharge opening in the discharge area, and the discharge means provided in the storage tank is discharged. Pressurized air is blown from the side of the upper opening toward the outlet,
The stirring blade includes a guide blade that guides the contents in the storage tank to the upper opening of the measuring chamber.
[0026]
A predetermined amount of medicine can be reliably supplied.
[0027]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a table feeder configured according to the present invention and a wastewater, sludge, and liquid waste treatment system equipped with the table feeder will be described in more detail with reference to the accompanying drawings illustrating preferred embodiments.
[0028]
Referring to FIGS. 1 and 2, the table feeder denoted as a whole by the number 2 includes a storage tank 8 in which a discharge port 6 connected to the fluid conveyance pipe 4 is formed, and a bottom wall 8 a in the storage tank 8. A plurality of measuring chambers 10 having an upper opening 10a and a lower opening 10b for introducing the contents in the storage tank 8 and discharging them to the discharge port 6 are formed in the circumferential direction of the outer edge. The rotary table 12 and a stirring means 18 having stirring blades 16 and 16 that are arranged on the same axis line 14 so as to be freely rotationally driven and extend radially are provided above the rotary table 12. When viewed from above in the storage tank 8, the rotary table 12 is driven to rotate in the counterclockwise direction indicated by the arrow R, and the stirring blade 16 is driven to rotate in the clockwise direction indicated by the arrow S.
[0029]
Each of the measuring chambers 10 is indicated by a reference Y and an introduction area where the contents in the storage tank 8 are introduced into the measuring chamber 10 indicated by the symbol X when the rotary table 12 is rotated in a predetermined direction indicated by the arrow R. The contents in the weighing chamber 10 are moved through the discharge area where the discharge is discharged to the discharge port 6. In the introduction area X, the upper opening 10a is opened in the storage tank 8 and the lower opening 10b is substantially closed by the bottom wall 8a. In the discharge area Y, the upper opening 10a is closed and the lower opening 10b is a discharge port. 6 is released. Before and after the discharge area Y in the rotation direction R, a front side closed area indicated by reference numeral Z1 and a rear side closed area indicated by reference numeral Z2 are formed to close the upper opening 10a and the lower opening 10b of at least one weighing chamber 10. Yes.
[0030]
In the discharge area Y, pressurized air is blown out from the upper opening 10 a toward the discharge port 6 by the jetting means 20. A guide blade 22 that guides the contents in the storage tank 8 to the upper opening 10 a of the measuring chamber 10 is provided at the tip of each stirring blade 16.
[0031]
The table feeder 2 will be further described in detail. The bottom wall 8a of the storage tank 8 is formed in a disk shape, and a peripheral peripheral portion of the bottom wall 8a is provided with a cylindrical peripheral wall 8b extending upward, and an upper lid having an inlet 8c at an opening at an upper end portion of the peripheral wall 8b. 8d is provided, and an opening / closing lid 8e that can be freely opened and closed is attached to the insertion port 8c. The storage tank 8 is substantially formed in a sealed structure. A through-bearing 8f for rotatably supporting the hollow rotary shaft 24 of the rotary table 12 is attached to the center of the disc of the bottom wall 8a around the axis 14 extending in the vertical direction. The rotating shaft 26 of the stirring blade 16 is inserted into the hollow rotating shaft 24 (the hollow rotating shaft 24 and the rotating shaft 26 will be described in detail later).
[0032]
On the peripheral wall 8b above the discharge port 6, a scraping plate 28 is slidably brought into contact with the upper opening 10a of the measuring chamber 10 of the rotary table 12 and closes the upper opening 10a in the front closed area Z1, the discharge area Y, and the rear closed area Z2. Are integrally attached. The above-mentioned ejection means 20 is formed on this scraping plate 28. The ejection means 20 includes a cavity 20b having a plurality of outlets 20a for ejecting pressurized air toward the outlet 6, and the cavity 20b is connected to a pressurized air source 30 such as an external compressor or blower. It is connected.
[0033]
The storage tank 8 is also provided with a conical cylinder member 32 that is attached to the inner surface of the cylindrical peripheral wall 8b and extends downward to the upper side of the stirring blade 16 and is gradually formed into a small diameter. The conical cylinder member 32 and the peripheral wall 8b form an annular space 34 having a triangular cross-section with the top closed.
[0034]
The turntable 12 includes a disc-shaped main body 12a and a plurality of partition plates 12b erected radially at predetermined intervals in the circumferential direction of the periphery of the main body 12a. The pair of adjacent partition plates 12b and 12b cooperate with the inner surface of the peripheral wall 8b of the storage tank 8 to define the measuring chamber 10 having the upper opening 10a and the lower opening 10b. The above-described hollow rotary shaft 24 is attached to the central portion of the main body 12a so as to be directed downward. The hollow rotary shaft 24 is connected to the rotary drive means 36 through the through bearing 8f of the bottom wall 8a. The hollow through hole of the hollow rotary shaft 24 forms a bearing hole for inserting the rotary shaft 26 of the stirring blade 16.
[0035]
Referring to FIGS. 3 and 4 together with FIGS. 1 and 2, the pair of stirring blades 16 and 16 of the stirring means 18 are provided at intervals of 180 ° in the rotation direction about the axis 14. Each of the stirring blades 16 includes a horizontal portion 16a having a triangular cross section that extends radially and protrudes upward, and the guide blade 22 is integrated with the outer end of the horizontal portion 16a toward the upper opening 10a of the lower measuring chamber 10. Installed. Further, on the upper side of the horizontal portion 16a, a branch blade 38 having a rectangular cross section extending obliquely upward along the inner surface of the conical cylinder member 32 is provided. The rotating shaft 26 is integrally attached to the horizontal portion 16 a and extends downward, and is inserted into the through hole of the hollow rotating shaft 24 of the rotary table 12 and is connected to the rotation driving means 36.
[0036]
The guide vane 22 has a rectangular cross section and extends vertically at an angle θ with the lower end side, which is the upper opening 10a side of the measuring chamber 10, being behind the rotation direction of the stirring vane 16 (arrow S). An inclined surface K is provided. The angle θ is approximately 30 °.
[0037]
Continuing the description with reference to FIG. 1, the rotation driving means 36 can be constituted by a known appropriate one. For example, a single electric motor and a gear mechanism may be used as long as they can drive the hollow rotary shaft 24 of the rotary table 12 and the rotary shaft 26 of the stirring blade 16 in a predetermined rotational direction at a predetermined rotational speed. . Therefore, the illustration of the configuration of the rotation driving means 36 is omitted.
[0038]
The table feeder 2 includes pressurizing means 40 that pressurizes and holds the inside of the storage tank 8 at a predetermined pressure. The pressurizing means 40 includes an air inflow valve 40 a that allows pressurized air to flow into the storage tank 8, which can be constituted by an electromagnetic switching valve, a release valve 40 b for releasing the pressure in the storage tank 8, and the pressure in the storage tank 8. A pressure sensor 40c to be detected, and a relay switch or the like that switches between opening and closing of the air inlet valve 40a and the relief valve 40b so as to pressurize and hold the pressure in the storage tank 8 at a predetermined pressure by an output signal from the pressure sensor 40c. And a controller 40d capable of
[0039]
According to the results of examinations and experiments by the present inventors, in order to handle short fibers by the table feeder 2, it is preferable to pressurize and hold the inside of the storage tank 8 at 0.5 kPa or more. The upper limit of this pressure is set below the withstand pressure in consideration of the pressure resistance of the storage tank 8.
[0040]
Another embodiment of the above-described annular space 34 formed by closing the upper part above the measuring chamber 10 and the guide vanes 22 will be described with reference to FIG. The annular space denoted by reference numeral 42 has a cylindrical diameter of the cylindrical peripheral wall 8b of the storage tank 8 having a small diameter, and an annular cylindrical member 42a extending upward from the peripheral edge of the bottom wall 8a is provided on the radially outer side of the peripheral wall 8b. A lid member 42b is attached and closed between the upper end of the annular tube member 42a provided and the peripheral wall 8b. When this annular space 42 is employed, the branch blade 38 provided in the above-described stirring blade 16 may be omitted.
[0041]
With reference to FIGS. 7 to 11, a wastewater, sludge and liquid waste treatment system provided with a table feeder 2 will be described in more detail with reference to the accompanying drawings illustrating a preferred embodiment.
[0042]
(1) Wastewater treatment system:
FIG. 7 shows a wastewater treatment system denoted by reference numeral 60 that adds a fibrous chemical to the water to be treated and performs a coagulation sedimentation treatment, and FIG. 8 performs a floating treatment by adding the fibrous chemical to the water to be treated. The waste water treatment system shown with the number 62 is shown. The wastewater treatment system 60 includes an infusion device 64 for fibrous medicine, a mixing tank 66 for mixing the fibrous medicine from the infusion apparatus 64 and the water to be treated, and the treated water that has passed through the mixing tank 66 as coagulated sediment sludge. A coagulation sedimentation tank 68 for separating into treated water is provided.
[0043]
Referring to FIG. 9 together with FIG. 7, the injection device 64 includes a medicine hopper 70, an ejector 50 provided in a fluid conveyance conduit 4 through which, for example, pressurized air or pressurized water is flowed, and fluid ejection from the ejector 50. And a table feeder 2 for supplying a fibrous drug to the unit 51. The ejector 50 is a well-known one having a nozzle that ejects fluid at a high speed. The discharge port 6 of the table feeder 2 is connected to the fluid ejection part 51. Therefore, the medicine discharged to the discharge port 6 is sucked and transported to the transport pipeline 4 by a suction action that reduces the static pressure around the fluid ejected from the ejector 50 at a high speed.
[0044]
The waste water treatment system 62 shown in FIG. 8 includes the above-described fibrous drug injecting device 64, a mixing tank 66 for mixing the fibrous chemical from the injecting apparatus 64 and the water to be treated, and the treatment target through the mixing tank 66. A floating tank 70 is provided for separating water into floss which is a separated solid and treated water.
[0045]
More preferably, the fibrous chemical is added to the water to be treated after the pH is adjusted by adding an acid or an alkali agent. Further, a coagulation tank is provided at the subsequent stage of the mixing tank, and a polymer flocculant is added to the coagulation tank. The levitation process includes a pressure levitation process method in which pressurized water in which air is dissolved is injected into the levitation tank 72, and a normal pressure separation method in which a foaming agent is added to the mixing tank 66 to perform atmospheric pressure levitation separation. Can also be used. As a mixing method of the mixing tank, any mixing method such as a mechanical stirring method, a pump circulation method, and a water flow method using a water flow can be used.
[0046]
(2) Sludge treatment system:
FIG. 10 shows a sludge treatment system denoted by reference numeral 74, which is performed by adding a fibrous chemical to sludge as an object to be treated. The sludge treatment system 74 includes the above-described fibrous drug injecting device 64, a mixing tank 76 for mixing the fibrous chemical from the injecting apparatus 64 and the object to be processed, and the object to be processed through the mixing tank 76 as a dehydrated cake. And a dehydrator 78 for separating into a separation liquid. A to-be-processed object is the sludge containing the organic substance and inorganic substance from the above-mentioned coagulation sedimentation sludge, the floss of a floatation process, the excess sludge generated from a biological process, and a simple precipitation process.
[0047]
More preferably, the fibrous agent alone or the fibrous agent and the inorganic flocculant or organic polymer flocculant are used in combination for the purpose of improving the dewatering performance of the object to be treated. After mixing the article to be processed and the fibrous chemical, a dehydration treatment is further performed by adding an inorganic flocculant or an inorganic flocculant or an organic polymer flocculant. The fibrous drug is quantitatively injected from the injection device 64 into the mixing tank 76 and mixed with the object to be processed, and the supply amount of the fibrous drug from the injection device 64 is matched to the sludge supply amount to the dehydrator 78. Is adjusted.
[0048]
(3) Liquid waste treatment system:
FIG. 11 shows a liquid waste designated by numeral 80, which is obtained by adding a fibrous chemical to liquid waste, for example, septic tank sludge, sludge generated from human waste and human waste, rural sludge wastewater treatment, and sludge generated from various industrial wastewater treatments. 1 shows a waste treatment system. The liquid waste treatment system 80 includes the above-described fibrous drug injecting device 64, a mixing tank 82 for mixing the fibrous chemical and liquid waste from the injecting apparatus 64, and an object to be processed through the mixing tank 82. A screen 84 for separating a concentrate such as solid matter, oil, and sand and a separation liquid is provided. The fibrous medicine from the injection device 64 may be supplied to a pipe connecting the mixing tank 82 and the screen 84.
[0049]
The operation of the table feeder 2 will be mainly described with reference to FIG. 1, and the operation of the wastewater, sludge and liquid waste treatment system provided with the table feeder 2 will be described with reference to FIGS.
[0050]
(1) Can supply a fixed amount:
Since the stirring blade 16 of the table feeder 2 is provided with a guide blade 22 that guides the contents in the storage tank 8 to the upper opening 10a of the measuring chamber 10 of the rotary table 12, the contents such as short fibers are stored in the measuring chamber. 10 is surely guided so as to be pushed. Further, the contents introduced into the measuring chamber 10 are reliably discharged to the discharge port 6 by the pressurized air blown out from the jetting means 20 provided in the portion of the discharge port 6. Furthermore, since the storage tank 8 is pressurized by the pressurizing means 40 and the discharge port 6 is connected to the vacuum transfer pipe 4 or the running water transfer pipe 48, the contents such as short fibers can be reliably quantified. Supplied.
[0051]
(2) Elimination of malfunction of the stirring blade:
Since the upper closed annular space 34 or 42 is provided above the measuring chamber 10 and the guide vane 16, the contents such as short fibers guided to the tip end portion of the stirring vane 16 are not compacted and the portion It is easy to enter the measuring chamber 10 together with the action of the guide vanes 22. Therefore, the fluidity of the stored material such as short fibers in the storage tank 8 is improved, the force for pressing the stored product against the inner wall of the storage tank 8 by the stirring blade 10 is reduced, and the malfunction of the stirring blade 16 is eliminated. Further, the power of the drive means 36 of the stirring blade 16 can be reduced, and an overload of the drive motor can be prevented.
[0052]
(3) No vibration means is required:
As described above, since the problem of quantitative supply and the problem of stirring blade operation are improved, it is not necessary to install a vibration means conventionally provided to shake the entire supply apparatus. Therefore, the equipment cost can be reduced.
[0053]
(4) No exhaust gas treatment is required:
If the contents in the storage tank 8 discharged from the discharge port 6 are transported by running water, a large amount of air is not sent to the transport destination, so that exhaust gas treatment at the transport destination is unnecessary or easy.
[0054]
(5) The water affinity of the short fiber is improved:
If the short fiber discharged from the discharge port 6 is conveyed by flowing water as a fluid to the conveyance pipeline 4, the water affinity of the short fiber is improved in the conveyance stage. Therefore, it is effective when supplying short fibers as a dewatering aid such as waste water or sludge. In the case of wastewater treatment, water to be treated can be used in place of industrial water as running water for transport.
[0055]
(6) Fibrous medicine can be reliably injected in the treatment of drainage, sludge and liquid waste: By providing the table feeder 2 and the ejector 50 in the fibrous medicine injection device of the wastewater, sludge and liquid waste treatment system In addition, the fibrous drug can be quantitatively and reliably and stably injected and mixed into the object to be processed, and the amount of the fibrous drug can be easily adjusted according to the amount of the object to be processed.
[0056]
Although the present invention has been described in detail based on the embodiments, the present invention is not limited to the above-described embodiments, and various modifications or corrections can be made within the scope of the present invention.
[0057]
(1) Storage tank contents:
In the present embodiment, the table feeder 2 is configured for the purpose of solving the problem in the case where the items stored in the storage tank are short fibers, but the table feeder 2 is used only as a short fiber supply device. Needless to say, it can be effectively used as a supply device for various powders and granules.
[0058]
(2) Direction of rotation of rotary table and stirring blade:
In the present embodiment, the rotary table 12 and the stirring blade 16 are configured to rotate in the opposite direction. However, the type of the contents stored in the storage tank 8, powder, granules, short fibers, etc. Depending on the difference, the rotary table 12 and the stirring blade 16 are set in the same direction so that the rotation speed of the stirring blade 16 is higher than that of the rotary table 12, or the rotary table 12 and the stirring blade 16 are integrated in the same direction. You may rotate with.
[0059]
(3) Stirring blade, guide blade:
In the present embodiment, the guide vane 22 is provided with an inclined surface K that extends upward and downward with the lower end on the upper opening 10a side of the measuring chamber 10 being rearward in the rotation direction S of the stirring vane 16, but is accommodated in the storage tank. As shown in FIG. 6, the guide blade 23 may be vertically extended without the inclined surface K, depending on the type of the contained material, powder, granules, short fibers, and the like. Further, the guide vanes may be inclined forward in the rotational direction from the inside in the radial direction to the outside. Further, although a pair of stirring blades 16 are provided, one or three or more stirring blades may be provided.
[0060]
【The invention's effect】
According to the table feeder configured according to the present invention and the wastewater, sludge, and liquid waste processing system provided with the table feeder, the short fiber in the table feeder which is a device provided with a rotating table and quantitatively supplies the contents in the storage tank , Problems with the supply of fixed quantity, difficulty in rotating the stirring blade, vibration means required, exhaust gas treatment required, improvement in water affinity of short fibers, etc. Moreover, wastewater, sludge, and liquid waste can be appropriately treated.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a table feeder configured according to the present invention as viewed from the side.
FIG. 2 is a cross-sectional view taken in the direction of arrows AA in FIG.
FIG. 3 is a view showing a mounting configuration of a guide blade of a stirring blade as viewed in the direction of arrows BB in FIG. 2;
4 is a cross-sectional view of a stirring blade showing a guide blade as viewed in the direction of arrows CC in FIG. 3;
FIG. 5 is a cross-sectional view showing another embodiment of the annular space provided in the storage tank.
6 is a cross-sectional view showing another embodiment of the guide vane as viewed in the direction of the arrow CC in FIG. 3. FIG.
FIG. 7 is a diagram of an embodiment of a wastewater treatment system according to the present invention, a coagulation sedimentation treatment.
FIG. 8 is a diagram of a flotation process according to one embodiment of a wastewater treatment system according to the present invention.
FIG. 9 is a cross-sectional view showing a connection portion between a discharge port of a table feeder and an ejector of a conveyance pipeline.
FIG. 10 is a diagram of a sludge treatment system according to the present invention.
FIG. 11 is a diagram of a liquid waste treatment system according to the present invention.
[Explanation of symbols]
2: Table feeder 4: Transport pipeline 6: Discharge port 8: Storage tank 10: Measuring chamber 10a: Upper opening 10b: Lower opening 12: Rotating table 14: Axis 16: Stirring blade 18: Stirring means 20: Blowing means 22: Guide Blade 32: Conical cylinder member 34: annular space 38: branch blade 40: pressurizing means 42: annular space 50: ejector 60: waste water treatment system 62: waste water treatment system 64: fibrous chemical injection device 74: sludge treatment system 80 : Liquid waste treatment system K: Inclined surface X: Introduction area Y: Discharge area

Claims (9)

A plurality of measuring chambers, which are rotatably arranged at the bottom of the storage tank and introduce the contents in the storage tank and discharge it to the discharge port, have an upper opening and a lower opening, and are formed at intervals in the circumferential direction. A rotary table, and a stirring means having one or more stirring blades that are arranged to freely rotate on the same axis as the rotary table and extend radially are provided above the rotary table,
Each of the weighing chambers is rotated through the introduction area and the discharge area, and the upper opening is opened in the storage tank in the introduction area, the lower opening is opened in the discharge opening in the discharge area, and the discharge means provided in the storage tank is discharged. Pressurized air is blown from the side of the upper opening toward the outlet,
The table feeder is characterized in that the stirring blade includes a guide blade for guiding the contents in the storage tank to the upper opening of the measuring chamber. 2. The table feeder according to claim 1, wherein the guide blade includes an inclined surface extending vertically with the upper opening side being rearward in the rotation direction of the stirring blade. The table feeder according to claim 1 or 2, wherein the storage tank is provided with an annular space whose upper portion is closed above the measuring chamber and the guide vanes. The table feeder according to any one of claims 1 to 3, wherein the stirring blade includes a branch blade extending upward. The table feeder according to any one of claims 1 to 4, further comprising a pressurizing unit that pressurizes and holds the inside of the storage tank at a predetermined pressure. An apparatus for injecting a fibrous drug, a mixing tank for mixing the fibrous drug from the injection apparatus and the water to be treated, and a coagulating sediment for separating the water to be treated through the mixing tank into coagulated sediment sludge and treated water A tank or a flotation tank that separates the floss and treated water;
The injection apparatus includes: an ejector provided in a fluid conveyance line connected to the mixed layer; and a table feeder that supplies the fibrous medicine to a fluid ejection portion of the ejector. Wastewater treatment system equipped with. Fibrous drug injection device, mixing tank for mixing the fibrous drug from the injection apparatus and the object to be processed, and a dehydrator for separating the object to be processed through the mixing tank into a dehydrated cake and a separation liquid With
The injection apparatus includes: an ejector provided in a fluid conveyance line connected to the mixed layer; and a table feeder that supplies the fibrous medicine to a fluid ejection portion of the ejector. Sludge treatment system equipped with. An infusion device for fibrous medicine, a mixing tank for mixing the fibrous medicine and liquid waste from the infusion apparatus, and a screen for separating the material to be processed through the mixing tank into a concentrate and a separation liquid. The injection device includes an ejector provided in a fluid conveyance line connected to the mixed layer, and a table feeder that supplies the fibrous medicine to a fluid ejection portion of the ejector. Liquid waste treatment system equipped with a feeder. The table feeder is rotatably arranged at the bottom of the storage tank, and a plurality of weighing chambers for introducing the contents in the storage tank and discharging them to the discharge port have an upper opening and a lower opening, and are spaced apart in the circumferential direction. A rotary table formed on the rotary table, and a stirring means having one or more stirring blades that are arranged to freely rotate on the same axis as the rotary table and extend radially.
Each of the weighing chambers is rotated through the introduction area and the discharge area, and the upper opening is opened in the storage tank in the introduction area, the lower opening is opened in the discharge opening in the discharge area, and the discharge means provided in the storage tank is discharged. Pressurized air is blown from the side of the upper opening toward the outlet,
The processing system according to any one of claims 6 to 8, wherein the stirring blade includes a guide blade that guides the contents in the storage tank to the upper opening of the measurement chamber.

Images