JP3747157B2 - Waste dewatering device and waste treatment system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a waste dewatering apparatus that separates garbage such as garbage from households, small and medium-sized business schools, business groups, etc. into water and solids, and more specifically, disposal that is a mixture of solid waste and water A waste dewatering device that inputs waste water from the input section, separates the waste water, discharges the separated solid waste from the discharge section, and discharges the water to the drainage channel; The present invention relates to a waste treatment system including the same.
[0002]
[Prior art]
Garbage from household sinks is waste-containing water in which moisture and solid waste are mixed, and must be separated into moisture and solid waste before draining into sewage. Conventionally, there is a dehydration apparatus described in JP-A-6-292959 as one of such apparatuses. This dewatering device is provided on the downstream side of a pulverizing device for pulverizing raw garbage containing moisture, and has an upright cylindrical screen having a plurality of drain holes and a screw inserted in the screen. The waste-containing water sent to the lower part of the screw is lifted by the rotating screw, and the solid waste is discharged to the upper end of the screw, but the water is discharged from the hole of the screen, and the garbage is dehydrated.
[0003]
[Problems to be solved by the invention]
However, since the dehydrator as described above uses a screw to lift the mixture, the blade blades of the screw press the solid waste of the screen, and the solid waste clogs the holes in the screen. In particular, solid waste with high viscosity, such as rice grains, is guided to the hole together with moisture and is crushed by the screw to close the hole. When such clogging progresses, moisture is not drained from the hole in the screen but is lifted up to the upper end by the screw, causing a problem of moisture flowing into the tank for storing solid waste. There will be dangers such as backflow of garbage and water leakage.
Further, in such a dehydrator, in order to handle the waste-containing water, if the shaft portion of the drive unit, the gear, the chain, or the like is configured to come into contact with the waste-containing water, solid matter enters the gap. It becomes easy and malfunction occurs due to the entry of the solid matter, and frequent maintenance work is required.
[0004]
Accordingly, an object of the present invention is to provide a waste dewatering device that has high dewatering performance and can prevent malfunction due to the entry of solid matter into the gap.
[0005]
[Means for Solving the Problems]
[Configuration 1]
A waste dewatering apparatus according to the present invention, as described in claim 1, is a case member connected to the drainage flow path and capable of storing water in a lower part,
A porous container member having a plurality of drainage holes, wherein the input portion and the discharge portion are formed at an edge, a lower portion is immersed in water in the case member;
At least the lower part is housed in the porous container member, and has a plurality of blade bodies projecting in the radial direction from the outer peripheral part, and includes a drum member that can be driven to rotate.
The porous container member is formed as a squeezing bottom portion adjacent to the tip end portion of the blade body, at least from the bottom portion subordinate to the rotation direction of the drum member to the discharge portion.
[0006]
[Function and effect]
By constructing the waste dewatering apparatus as in this configuration, the water stored in the lower part of the case member is changed into a waste-containing water tank with a large amount of solid waste in the porous container member by the lower part of the porous container member. And a water separation tank in which water drained from the hole of the porous container member is stored, and the waste-containing water introduced into the porous container member from the input portion is provided in the porous container member Water is drained from the plurality of holes to the water separation water tank, and stored in the waste-containing water tank at the lower part in the porous container member in a state where there is a large amount of solid waste.
And, with the rotation of the drum member housed below in the porous container member, the blade body is immersed in the waste-containing water tank while maintaining the state where the tip portion is brought close to the squeezed bottom portion. Since it moves to the discharge part, the solid waste in the waste-containing water tank is transported to the discharge part by the blades, and the water contained in the solid waste in the process is caused by gravity and the mutual compressive force between the blades and the squeezing bottom part. The solid waste that has been squeezed and has a low water content can be discharged from the discharge portion to the waste tank or the like in the next process, and the squeezed water is drained through the holes of the porous container member.
Accordingly, it is an object of the present invention to provide a waste dewatering apparatus that has high dewatering performance and has almost no gap in the portion that comes into contact with the waste-containing water, and can prevent the occurrence of malfunction due to the entry of solid matter into the gap. .
[0007]
[Configuration 2]
The waste dewatering device according to the present invention is provided in the discharge portion in addition to the configuration of the waste dewatering device having the above-described configuration 1, and can be slidably contacted with the blade body of the drum member. And a blade member for scraping off the waste on the blade body to a discharge portion.
[0008]
[Function and effect]
In the waste dewatering device of the present invention, as in this configuration, by providing the blade member, in the discharge portion, the tip of the blade member is brought into sliding contact from the drum side to the tip side of the upper surface of the blade body, Solid waste that has been transported to the discharge part and squeezed out well on the blade body of the drum member can be scraped off to the discharge part, and from the discharge part to the waste tank of the next process, etc. Solid waste can be discharged.
[0009]
[Configuration 3]
As described in claim 3, the waste dewatering device according to the present invention is provided with an opening for drainage in the blade body in addition to the configuration of the waste dewatering device having the above configuration 1 or 2. Features.
[0010]
[Function and effect]
As in this configuration, by providing an opening for drainage such as a slit or a hole in the blade body, the tip moves close to the squeezed bottom formed in the porous container part, and the solid waste is conveyed to the discharge part. However, in order to drain the water contained in the solid waste, the drainage can be performed also through the opening provided in the blade body, and the dewatering ability can be further improved.
[0011]
[Configuration 4]
According to a waste dewatering apparatus according to the present invention, as described in claim 4, in addition to the structure of the waste dewatering apparatus according to any one of the first to third aspects, the drum member is connected to two shaft parts connected together with a shaft portion. It is comprised by the disk member and the said blade | wing body provided over both the said disk members, It is characterized by the above-mentioned.
[0012]
[Function and effect]
By configuring the drum member of the waste dewatering device of the present invention as in this configuration, a space is formed between the two disk members of the drum member, and the waste-containing water can freely enter the space. The excess of waste-containing water placed on the blades moving along the squeezed bottom formed in the porous container part can be returned to the waste-containing water tank through the space, and an appropriate amount of waste can be disposed Water can be squeezed out by conveying material-containing water by means of blades.
[0013]
[Configuration 5]
As described in claim 5, the waste dewatering device according to the present invention forms a drainage channel connected to the case member in addition to the configuration of the waste dewatering device according to any one of the above configurations 1 to 4. In addition, a water level stored in the case member is set, and a detachable trap member is provided.
[0014]
[Function and effect]
In the waste dewatering device of the present invention, in order to set the water level of the water in the case member, the uppermost portion of the lower end of the drainage channel formed inside is set at the same position as the water level in the vertical direction. By providing a trap member and making the trap member detachable, fine solid waste discharged into the water separation tank of the case member from the drain hole of the porous container portion is accumulated in the trap member. Although it becomes a cause of poor drainage, the maintenance of removing the waste by periodically removing the trap member can be easily performed.
[0015]
[Configuration 6]
The waste dewatering apparatus according to the present invention is a filtration for filtering water discharged into the drainage channel in addition to the structure of the waste dewatering apparatus according to any one of the first to fifth aspects as described in claim 6. It has the part.
[0016]
[Function and effect]
The waste dewatering device of the present invention dewaters the waste-containing water that has been input, and discharges solid waste with low moisture content from the discharge section to the waste tank of the next process, and drains the squeezed water. Although the water is drained into the flow path, the water discharged into the drain flow path is mixed with finer waste than the plurality of drain holes provided in the porous container member.
When the BOD (biochemical oxygen demand) concentration, etc. of the wastewater mixed with such a small amount of fine waste is smaller than the value determined by the sewage drainage standards, the wastewater is drained into the sewer as it is. However, when the BOD concentration is higher than the reference value, it is necessary to drain the sewage after reducing the BOD concentration.
Therefore, as in the present configuration, by providing the filtration unit, the water discharged to the drainage channel can be discharged to the drainage channel after removing fine waste to some extent. The BOD concentration of the discharged water can be set to a very low value of about 300 mg / L or less.
Moreover, such a filtration part can be made into the filtration part filled with activated carbon, soot, etc., and fine waste can be favorably removed because water distribute | circulates the filtration part.
[0017]
[Configuration 7]
According to the waste dewatering device of the present invention, as described in claim 7, in addition to the configuration of the waste dewatering device according to any one of the above configurations 1 to 6, the blade body of the drum member includes the tip portion. It is configured to be elastically movable toward the drum member side,
The squeezing bottom portion of the porous container member is configured to reduce the distance from the outer peripheral portion of the drum member across the discharge portion from the bottom portion while the tip portion of the blade body is slidably contacted. It is characterized by being.
[0018]
[Function and effect]
In the waste dewatering device of the present invention, as in the present configuration, the blade member of the drum member, for example, the blade member makes the surface opposite to the rotation direction of the drum member close to the drum member, etc. The tip portion is configured to be elastically movable toward the drum member side, and the gap between the squeezing bottom portion and the outer peripheral portion of the drum member is configured so as to be reduced from the bottom portion to the discharge portion. As the body approaches the discharge part, the tip part is moved in a direction approaching the drum member, and the bottom part immersed in the waste water tank is maintained in a state in which the tip part is in sliding contact with the squeezed bottom part. The solid waste in the waste water tank moves through the gap between the squeeze bottom and the drum member that is reduced toward the discharge portion by the blades that move toward the discharge portion. Enough water Will take is it.
Therefore, in the waste dewatering device of the present invention, the dewatering performance can be further improved.
[0019]
[Configuration 8]
The waste treatment system according to the present invention, as described in claim 8, is a disposer for pulverizing solid waste charged into a drain outlet, and waste-containing water from the disposer. The waste dewatering apparatus according to any one of claims 1 to 6, and a processing apparatus for performing a microbial decomposition process on the solid waste discharged from the waste dewatering apparatus.
[0020]
[Function and effect]
As in this configuration, the waste treatment system of the present invention is used at home or for business, and the waste thrown into the drain outlet is pulverized by a disposer, and the pulverized waste together with water is a waste dehydrator. The waste dewatering device separates the solid waste that will later be microbially decomposed by the processing device and the water drained into the drainage channel. Since the waste dewatering device of the present invention has been utilized, there is little reduction in processing capacity due to malfunction of the waste dewatering device, and furthermore, the dewatering performance of the waste dewatering device is high. In a processing apparatus for microbial decomposition treatment, it is possible to suppress a reduction in processing capacity due to excessive moisture or generation of bad odor, etc., and to reduce time and effort for throwing sawdust into the processing apparatus for moisture adjustment Kill.
Therefore, it is possible to realize a waste treatment system that can be used for household or business use and can treat waste thrown into the drain outlet in a preferable state.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of a waste treatment system of the present invention and a waste dewatering device provided in the waste treatment system will be described with reference to the drawings.
1 is a schematic longitudinal sectional view of a waste treatment system, FIG. 2 is a partial side sectional view of a drum member of a waste dewatering device provided in the waste treatment system shown in FIG. 1, and FIG. It is a perspective view of the blade provided in the drum member of the waste dewatering device.
[0022]
The waste treatment system 100 is provided at a drain outlet of a household sink, a disposer 10 that crushes garbage (solid waste) thrown into the drain outlet, and a waste that is a mixture of garbage and water from the disposer 10. Waste water dehydrating apparatus 40 that receives waste water from the input section 1, separates waste-containing water, discharges the separated solid waste from the discharge section 2, and discharges water to the drainage flow path 30. And a processing device 20 for microbial decomposition of the solid waste charged into the culture tank 21 from the waste dewatering device 40.
[0023]
Specifically, the waste dewatering device 40 is provided with a case member 41 that is open at the top and is connected to a trap member 42 that forms the drainage flow path 30 by a union 43, and water is stored in a lower portion of the case member 42. The drainage flow path 30 is set at the same position as the water level in the vertical direction in order to set the water level of the water in the case member 41.
Further, the trap member 42 is connected to the sewer pipe side by a union 45 and is configured to be removable by removing the unions 43 and 45, so that the inside can be easily cleaned.
[0024]
Further, in the case member 41, the input portion 1 and the discharge portion 2 are formed at the edges, the lower portion is immersed in the water in the case member 41, and the porous container member 46 having a plurality of drainage holes is provided. The perforated container member 46 is composed of two semicircular side plates 46b having a diameter of about 180 mm and a plate-like bottom plate 46a bent into a semicircular shape having a diameter of about 180 mm, respectively. The side plate 46b and the bottom plate 46a are provided with a plurality of drain holes 46c having a diameter of about 1.5 mm.
[0025]
In addition, at least the lower part is accommodated in the porous container member 46, and eight blade bodies 48 projecting radially from the outer peripheral part are fixed at equal intervals in the circumferential direction. A drum member 47 that can be rotationally driven is provided so that the peripheral portion moves. The drum member 47 includes two disk members 47a coupled together with the shaft portion 47b, and blades provided across both the disk members 47a. The blade body 48 is configured to be inclined in the direction opposite to the rotation of the drum member 47 as it is separated from the joint portion with the disk member 47a in the radial direction. The crossing diameter is about φ180 mm. Further, the rotational drive of the drum member 47 is automatically started simultaneously with the start of the operation of the above-described disposer 10, and the rotational drive is maintained for 5 minutes.
[0026]
Further, in the waste dewatering apparatus 40, the axis of the drum member 47 and the arc of the bottom 46a of the porous container member 46 are the same, and the bottom plate 46a of the porous container member 46 is subordinate to the rotation direction of the drum 47. Further, at least the bottom portion to the discharge portion 2 is configured as a squeezing bottom portion A that is close to the tip end portion of the blade body 48 of the drum 47.
[0027]
And by having comprised as mentioned above, the blade body 48 maintains the state which made the front-end | tip part adjoin to the squeeze bottom part A with rotation of the drum member 47 accommodated below in the porous container member 46. However, since it moves to the discharge part 2 from the state immersed in waste-containing water, the solid waste of waste-containing water is conveyed to the discharge part 1 by the blade 28, and the water contained in the solid waste in the process is Water that has been squeezed by gravity and the mutual compressive force between the blade body and the bottom of the squeezed portion, and can discharge solid waste having a low water content from the discharge unit 2 to the culture tank 21 of the processing device 20 in the next process. Is drained into the case member 41 through the hole of the porous container member 46, flows through the drainage flow path 30 in the trap member 42, and is drained into the sewer pipe.
[0028]
Further, the blade body 48 is provided with a plurality of 1 mm-wide slits 48a (an example of an opening) formed from the center portion to the tip portion of the blade body 48 at intervals of 10 mm, so that solid waste can be collected. The water contained in the solid waste can be drained through the slits 48a provided in the blades 48 while being transported to the discharge unit 2, and the dewatering ability can be further improved. .
[0029]
Furthermore, the discharge part 2 is provided with a blade member 49 whose upper part is fixed to the roof member 50 and whose tip can be slidably contacted with the blade body 48 of the drum member 47. Solid waste that is slidably contacted from the drum side 47 side to the front end side of the upper surface of the blade body 48 and placed on the blade body 48 of the drum member 47 and conveyed to the discharge unit 2, and the water is well squeezed, It can be scraped off to the discharge part 2.
[0030]
In addition, the processing apparatus 20 in which the solid waste from which water has been separated is input from the discharge unit 2 stirs the solid waste in the culture tank 21 by the stirring member 22 that is rotated by a motor, decomposes the microorganisms, and reduces the amount. Alternatively, composting is performed, and the stirring member 22 is configured to be driven to rotate for 5 minutes at 1 hour intervals. Further, the exhaust gas containing the odor component generated by the microbial decomposition in the processing apparatus 20 is discharged to the outside through the exhaust passage 23 provided with a fan, and the exhaust flow rate can be adjusted by the damper 24. Yes.
An air supply port (not shown) for taking in air from the outside is provided on the side wall of the culture tank 21 of the processing apparatus 20.
[0031]
Next, another embodiment of the waste dewatering apparatus 40 described so far will be described with reference to the drawings.
FIG. 4 is a schematic longitudinal sectional view of a waste treatment system according to another embodiment.
The waste dewatering device 40 of the waste treatment system 100 shown in FIG. 4 includes a filtration device (an example of a filtration unit) 60 that filters water discharged to the drainage flow path 30. Specifically, the filtration device 60 is divided into a filtration chamber 62 and a drain passage 30 that are internally partitioned by a partition plate 64 and connected by a union 45 to a trap member 42 from which water is discharged from the case member 41. A drainage chamber 63 connected by a union 61 is formed inside from the bottom in order.
Further, the filtration chamber 62 is filled with a filter material such as activated carbon or rice husk. In the filtration chamber 62, water containing fine waste introduced from the trap member 42 is filtered. Water with an extremely low BOD concentration of about 300 mg / L or less can be discharged to the drainage chamber 63 side.
In addition, a plurality of the partition plates 64 can be alternately provided so that the filtration chamber 62 can be folded back in a plurality of stages, and the flow path length in which the water contacts the filter material is increased to improve the filtration efficiency. You can also.
[0032]
Further, in the waste dewatering device 40 shown in FIG. 4, the shaft core of the drum member 47 is eccentric to the discharge unit 2 side with respect to the arc shaft of the bottom 46 a of the porous container member 46, and as a result, the porous container The squeezing bottom portion A of the member 46 is in a state in which the tip end portion of the blade body 48 is slidably contacted and the distance from the outer peripheral portion of the drum member 47 is reduced from the bottom portion to the discharge portion 2.
Therefore, as the blade body 48 approaches the discharge unit 2, the surface opposite to the rotation direction of the drum member 47 is moved closer to the drum member 47, and the tip portion is moved in the direction closer to the drum member 47. While maintaining the state in which the tip portion is in sliding contact with the squeezed bottom portion A, the waste material containing water is moved from the state immersed in the waste-containing water to the discharge unit 2, so that the solid waste of the waste-containing water reaches the discharge unit 1 by the blades 28. Moisture is sufficiently squeezed by moving through the gap between the squeezed bottom A that is conveyed and reduced toward the discharge unit 2 and the surface of the drum member 47 and the blade body 48 on the side of the squeezed bottom A.
Moreover, when comprised in this way, since the contact angle of the blade | wing body 48 and the bottom part 46a of the porous container member 46 becomes an obtuse angle in the input part 1 and the bottom part 46a side rather than the discharge part 2 side, The conveyance of the waste-containing water in the input part 1 and the bottom part 46a can be made good.
[0033]
[Another embodiment]
Next, another embodiment of the waste dewatering apparatus of the present invention will be described.
<1> The values of the dimensions and the like of the constituent members described in the above embodiment are given as an example, do not limit the present invention, and can be changed as appropriate according to the use situation.
[Brief description of the drawings]
FIG. 1 is a schematic longitudinal sectional view showing an embodiment of a waste dewatering apparatus according to the present invention. FIG. 2 is a partial side sectional view of a drum member of the waste dewatering apparatus shown in FIG. FIG. 4 is a schematic longitudinal sectional view showing another embodiment of the waste dewatering device of the present invention.
DESCRIPTION OF SYMBOLS 1 Input part 2 Discharge part 10 Disposer 20 Processing apparatus 30 Drain flow path 40 Waste dewatering apparatus 41 Case member 42 Trap member 46 Porous container member 47 Drum member 47a Disk member 48 Blade 48a Slit (opening)
49 Blade member 60 Filtration device (filtration unit)
100 Waste treatment system A Squeezed bottom

Claims (8)

Waste-containing water, which is a mixture of solid waste and water, is input from the input unit, and the waste-containing water is separated, and the separated solid waste is discharged from the discharge unit. A waste dewatering device that discharges into a drainage channel,
A case member connected to the drainage channel and capable of storing water in a lower portion;
A porous container member having a plurality of drainage holes, wherein the input portion and the discharge portion are formed at an edge, a lower portion is immersed in water in the case member;
At least the lower part is housed in the porous container member, and has a plurality of blade bodies projecting in the radial direction from the outer peripheral part, and includes a drum member that can be driven to rotate.
A waste dewatering device in which at least a bottom portion of the porous container member subordinate to the rotation direction of the drum member to the discharge portion is formed as a squeezing bottom portion close to a tip portion of the blade body. The waste dewatering according to claim 1, further comprising: a blade member provided in the discharge portion, configured to be slidably contacted with the blade body of the drum member, and scraping the waste on the blade body into the discharge portion. apparatus. The waste dewatering device according to claim 1 or 2, wherein an opening for drainage is provided in the blade body. The waste according to any one of claims 1 to 3, wherein the drum member includes two disk members connected together with a shaft portion, and the blades provided across both the disk members. Dehydration device. The drainage flow path connected to the case member is formed, the water level stored in the case member is set, and a detachable trap member is provided according to any one of claims 1 to 4. Waste dewatering equipment. The waste dewatering device according to any one of claims 1 to 5, further comprising a filtration unit that filters water discharged to the drainage channel. The blade member of the drum member is configured to be elastically movable at the tip portion toward the drum member side,
The squeezing bottom portion of the porous container member is configured to reduce the distance from the outer peripheral portion of the drum member across the discharge portion from the bottom portion while the tip portion of the blade body is slidably contacted. The waste dewatering device according to any one of claims 1 to 6. A disposer that crushes solid waste that has been input to a drain outlet, a waste dewatering device according to any one of claims 1 to 7 that processes waste-containing water from the disposer, and the waste dewatering device A waste treatment system comprising: a treatment device that performs microbial decomposition treatment of the solid waste discharged from the waste water.

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