CN111204950A - Solid-liquid separator with multi-section wedge-shaped screen drum - Google Patents
Solid-liquid separator with multi-section wedge-shaped screen drum Download PDFInfo
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- CN111204950A CN111204950A CN202010101053.8A CN202010101053A CN111204950A CN 111204950 A CN111204950 A CN 111204950A CN 202010101053 A CN202010101053 A CN 202010101053A CN 111204950 A CN111204950 A CN 111204950A
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- livestock manure
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- 239000007788 liquid Substances 0.000 title claims abstract description 53
- 239000010871 livestock manure Substances 0.000 claims abstract description 75
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000000926 separation method Methods 0.000 claims abstract description 16
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 244000144972 livestock Species 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims description 12
- 230000018044 dehydration Effects 0.000 claims description 12
- 238000006297 dehydration reaction Methods 0.000 claims description 12
- 239000011343 solid material Substances 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 7
- 210000002700 urine Anatomy 0.000 claims description 6
- 230000008447 perception Effects 0.000 claims description 4
- 210000003608 fece Anatomy 0.000 claims description 3
- 239000007787 solid Substances 0.000 abstract description 35
- 239000010802 sludge Substances 0.000 abstract description 6
- 238000010008 shearing Methods 0.000 abstract description 4
- 239000013535 sea water Substances 0.000 abstract description 3
- 239000010865 sewage Substances 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 2
- 239000010815 organic waste Substances 0.000 abstract description 2
- 239000002351 wastewater Substances 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 description 51
- 238000005859 coupling reaction Methods 0.000 description 51
- 230000008878 coupling Effects 0.000 description 50
- 238000004519 manufacturing process Methods 0.000 description 9
- 230000008901 benefit Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000007726 management method Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000009264 composting Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 208000032750 Device leakage Diseases 0.000 description 1
- 206010059410 Faecaluria Diseases 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/126—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using drum filters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/125—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using screw filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/44—Edge filtering elements, i.e. using contiguous impervious surfaces
- B01D29/48—Edge filtering elements, i.e. using contiguous impervious surfaces of spirally or helically wound bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
- B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
- B30B9/18—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing with means for adjusting the outlet for the solid
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
Abstract
The invention aims to provide a solid-liquid separator with a multi-section wedge-shaped screen drum, when the fluid and solid matters of livestock manure, organic waste, sewage and wastewater and seawater sludge are separated, the shearing stress is uniformly distributed in each area of the multi-section wedge-shaped screen drum, and the maximization of the treatment capacity and the minimization of the water content of the solid matters can be solved. It includes: a hopper into which the livestock manure flows from the outside; a plurality of wedge-shaped screen cylinders which receive and supply livestock manure from the hopper and are connected with each other in the length direction by the unit screen cylinders; the outer cylinder surrounds the multiple sections of wedge-shaped screen cylinders; the solid matter outlet is arranged at one side of the outer cylinder and is used for discharging the livestock excrement solid matter dehydrated in the multi-section wedge-shaped screen cylinder; the separation liquid outlet is arranged at the other side of the outer cylinder and is used for discharging water dehydrated in the multi-section wedge-shaped screen cylinder; the speed reducing motor drives the multi-section wedge-shaped screen drum; and a control panel for controlling the operation of the speed reducing motor; and the gap intervals among the wedge-shaped strips of the unit screen drum are different according to each unit screen drum.
Description
Technical Field
The present invention relates to a solid-liquid separator provided with a multistage wedge-shaped screen drum for solid-liquid separation of livestock manure, organic waste, sewage, wastewater, seawater sludge, and the like, which are generated in an industrial site or during seawater treatment.
Background
In general, a solid-liquid separator is a most basic apparatus for treating livestock manure (composting, liquid composting, purification, biogas production, and the like), and has a wide range of applications as compared with other apparatuses.
In korea, a solid-liquid separator for livestock manure treatment was used since the end of 1980 s, and at the time, it was dependent on imported products such as PAN company in germany, but because of high price and inconvenience in subsequent management, it was urgently required to be made into a home-made product. Therefore, at the time, the international machines as the korean engineering machinery business were successfully localized, and the delivery to the animal husbandry farmers began, and thereafter, the market for solid-liquid separators began to grow rapidly under the national subsidy policy. However, due to market overheating, the enterprise expands disorderly and reaches more than 48 families, but only 8 enterprises are available at present due to insufficient technical strength and subsequent management problems.
On the other hand, as a solid-liquid separation system, a belt press machine, a filter press machine, a screw press machine, a high-speed screw centrifuge, a low-speed screw centrifuge, a centrifugal solid-liquid separator, a sieve tube, and the like are used, and at present, the most commonly used equipment is a solid-liquid separator of a vibrating sieve tube system.
Wherein, spiral press formula domestic animal fecaluria solid-liquid separation equipment comprises following structure: livestock manure is squeezed by means of a screw and a pressure plate for applying pressure to the screw, liquid is discharged through a net surrounding the screw, solid matter as manure from which the liquid has been removed is transferred along a screw shaft, and the solid matter is discharged by pushing the pressure plate open. However, if high shear stress is applied to the pressure plate during operation, the moisture content of the solid matter is low, but the processing capacity of the machine is reduced, and if low shear stress is applied, the processing capacity is high, but the moisture removal is small, and the solid matter having a high moisture content is discharged. Therefore, it is very important to maintain the shear stress applied to the pressure plate as desired in order to ensure the processing capacity while maintaining the moisture content of the solid material to a desired level.
FIG. 1 is a conceptual diagram showing the principle of a conventional livestock manure solid-liquid separator.
As shown in fig. 1, the conventional livestock manure/urine solid-liquid separator has a technical limitation in solving the problems of maximizing the treatment capacity and minimizing the moisture content of solid materials, because the shearing stress applied to the pressure plate varies according to the discharge amount of the solid materials, and the shearing stress is not uniformly distributed.
On the other hand, as a technique related to a solid-liquid separator, a screw press (korean laid-open patent No. 2016-: an input unit that inputs animal dung and urine; a dehydration unit that performs solid-liquid separation of the livestock manure introduced by the introduction unit by means of rotation of an auger; a motor formed at one side of the dehydration part to rotate the auger; a pressure adjusting part that adjusts a pressure of the dehydration part; and a discharge part formed at the other side of the dehydration part for discharging dehydrated solid matter; and the pressure adjusting portion includes: a frame formed in an Contraband shape on the discharge portion side and having guide holes formed on both side surfaces; a pressure plate movably mounted to the frame to pressurize the discharge portion; a guide shaft protruding from both sides of the pressure plate, guided by the guide hole; a movable sheave attached to the guide shaft; a fixed pulley installed at a lower portion of one side of the dehydration part; one end of the stainless steel wire is fixed on the frame and is wound on the movable pulley and the fixed pulley; the counterweight block is additionally arranged at the other end of the stainless steel wire; the movable sheave moves in accordance with the weight of the weight block, and the pressure plate moves together with the movable sheave to pressurize the discharge portion.
Documents of the prior art
Patent document
(patent document 1) Korean laid-open patent No. 2016-0050218 (2016, 5, 11/2016)
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a solid-liquid separator having a multi-stage wedge-shaped screen drum, which can solve two problems of maximizing a treatment capacity and minimizing a moisture content of solid materials by uniformly distributing shear stress in each region of the multi-stage wedge-shaped screen drum when fluid and solid materials of livestock manure are separated.
Another object of the present invention is to provide a solid-liquid separator having a multi-stage wedge screen which can prevent the livestock excrement from rapidly flowing in by adjusting the amount of the livestock excrement flowing into a hopper from the outside.
It is still another object of the present invention to provide a solid-liquid separator having a multi-stage wedge screen cylinder, which is mounted on an openable window installed in an outer cylinder and facilitates cleaning of the wedge screen cylinder in the outer cylinder.
The object of the present invention is not limited to the above-mentioned object, and other objects not mentioned are clearly understood by those skilled in the art of the present invention from the following description.
The solid-liquid separator with a multistage wedge-shaped screen cylinder of the present invention comprises: a hopper into which livestock manure flows from the outside; a plurality of wedge-shaped screen cylinders which receive and supply livestock manure from the hopper and are connected with each other in a length direction by a unit screen cylinder, wherein the unit screen cylinder comprises a plurality of connection rings and a plurality of wedge-shaped strips, the connection rings are arranged in order in the length direction, a plurality of connection grooves are formed in the inner circumferential surface in the circumferential direction, and the wedge-shaped strips are respectively connected with the connection grooves of the connection rings; an outer cylinder surrounding the multi-section wedge screen cylinder; the solid matter outlet is arranged on one side of the outer cylinder and is used for discharging the livestock manure solid matter dehydrated in the multi-section wedge-shaped screen cylinder; the separation liquid outlet is arranged on the other side of the outer cylinder and is used for discharging water dehydrated in the multi-section wedge-shaped screen cylinder; a reduction motor driving the multi-section wedge screen drum; and a control panel that controls the operation of the reduction motor;
and the gap intervals among the wedge-shaped strips of the unit screen drum are different according to each unit screen drum.
According to a preferred embodiment, further comprising: the water level perception sensor is arranged on the hopper and is used for perceiving the water level in the hopper; and by means of the water level perception sensor, if the water level in the hopper reaches a value above a preset value, the driving of the multi-section wedge-shaped screen cylinder is interrupted according to the control signal of the control panel, and the driving of the pump for flowing the livestock manure into the hopper is interrupted.
According to a preferred embodiment, the arrangement intervals of the connecting grooves of the unit screen cylinder are different for each unit screen cylinder, and the thicknesses of the wedge-shaped bars of the unit screen cylinder are different for each unit screen cylinder.
According to a preferred embodiment, the unit screen cylinder is divided into a drainage unit screen cylinder, a concentration unit screen cylinder and a dehydration unit screen cylinder, the gap interval between the wedge-shaped strips of the drainage unit screen cylinder is the first big, the gap interval between the wedge-shaped strips of the concentration unit screen cylinder is the second big, and the gap interval between the wedge-shaped strips of the dehydration unit screen cylinder is the third big.
According to a preferred embodiment, at one side of the outer tub are formed: a cleaning opening/closing window which can be opened and closed so as to open a part of the outer cylinder, and which cleans the multi-stage wedge-shaped screen cylinder inside the outer cylinder; and a handle that can open and close the opening/closing window for cleaning.
According to a preferred embodiment, an overflow pipe for reflowing the livestock manure is formed to communicate with a side of the inflow port into which the livestock manure flowed through the hopper flows, so as to prevent the livestock manure from excessively flowing in.
According to a preferred embodiment, at an inlet side of the hopper, a flow rate adjusting valve that adjusts an amount of livestock manure flowing in through the hopper is formed.
According to a preferred embodiment, in order to prevent the livestock manure flowing into the inlet side of the hopper from rapidly dropping to the lower side, a blocking plate is installed inside the hopper to prevent the livestock manure from directly dropping to the lower side.
Therefore, the solid-liquid separator with the multi-section wedge-shaped screen drum has the advantages that the gap intervals among the wedge-shaped strips of the unit screen drum are different according to each unit screen drum, so that the shearing stress is distributed differently according to each unit screen drum, and the two problems of maximization of the livestock manure treatment capacity and minimization of the moisture content of solid matters can be solved.
Further, the solid-liquid separator having a multistage wedge-shaped screen drum according to the present invention has an advantage of preventing overflow of a raw material (livestock manure) that is not subjected to solid-liquid separation due to excessive inflow of the raw material at a discharge port for dehydrated solid matter and a hopper, and has an advantage of solving a problem of device failure and leakage (set down) caused by rapid inflow of the livestock manure that flows into the hopper from the outside.
In addition, the invention installs the openable opening and closing window on the outer cylinder, and can simply open and close the opening and closing window, thereby having the advantage of easy cleaning of the multi-section wedge-shaped screen cylinder.
Drawings
FIG. 1 is a conceptual diagram showing the principle of a conventional livestock manure solid-liquid separator.
FIG. 2 is a schematic view of a solid-liquid separator having a multistage wedge-shaped screen drum according to the present invention.
FIG. 3 is a schematic side view of a solid-liquid separator having a multi-stage wedge screen according to the present invention.
Figure 4 is a perspective view showing a multi-segmented wedge screen cylinder of the present invention.
FIG. 5 is an enlarged perspective view showing the link ring and wedge bar of the present invention.
Figure 6 is a conceptual diagram illustrating the principle of the multi-segment wedge screen cylinder of the present invention.
Fig. 7 is a schematic view showing a method of manufacturing a multistage wedge screen drum of the present invention.
[ description of reference ]
100: multi-section wedge-shaped screen drum
100-1: drainage unit screen drum
100-2: concentrating unit screen drum
100-3: dewatering unit screen drum
110: connecting ring
111: connecting groove
111-1: connecting taper groove
111-2: connecting curved groove
120: wedge-shaped strip
121: wedge-shaped pyramid part
122: wedge-shaped curved surface part
130: support rod
140: outer cylinder
142: opening and closing window for cleaning
143: handle (CN)
150: speed reducing motor
190: transfer screw
200: hopper
210: inlet port
212: inflow hose
220: overflow pipe (overflow pipe)
222: overflow hose
230: flow regulating valve
240: barrier plate
241: horizontal barrier plate
242: vertical barrier
250: flow rate inspection port
255: water level perception sensor
260: pump and method of operating the same
310: solid discharge port
320: separated liquid discharge port
400: control panel
P: fixing clamp
1000: solid-liquid separator with multi-section wedge-shaped screen drum
Detailed Description
The technical idea of the present invention will be described more specifically below using the drawings.
The drawings are merely examples shown to explain the technical idea of the present invention more specifically, and the technical idea of the present invention is not limited to the forms of the drawings.
FIG. 2 is a schematic view showing a solid-liquid separator having a multistage wedge-shaped screen drum according to the present invention.
The solid-liquid separator 1000 having a multi-stage wedge screen cylinder of the present invention includes a hopper 200, a multi-stage wedge screen cylinder 100, an outer cylinder 140, a solid discharge port 310, a separation liquid discharge port 320, a reduction motor 150, and a control panel 400.
The hopper 200 is a portion into which the livestock manure flows from a livestock manure storage pool in which the livestock manure is stored.
Inflow to the hopper 200 is achieved through the inflow port 210 via the inflow hose 212. In the present invention, an overflow pipe 220 is formed at a side surface of the inflow port 210. The overflow pipe 220 is used for preventing the livestock manure from excessively flowing into the hopper and playing a role of reflowing to the livestock manure storage pool. The overflow tube 220 communicates with an overflow hose 222.
A flow rate adjusting valve 230 is formed at an inlet side of the hopper. The flow rate adjustment valve 230 is a valve formed to be able to adjust the amount of livestock manure flowing into the hopper by a user. The user can prevent livestock manure from overflowing from the hopper or the wedge-shaped screen drum from stopping driving due to the fact that the livestock manure in the hopper is excessive by adjusting the amount of the livestock manure flowing into the hopper through the flow control valve 230.
A blocking plate 240 is formed inside the hopper. The blocking plate 240 serves as a buffer for preventing the livestock manure from rapidly flowing into the wedge screen cylinder, in order to prevent the livestock manure flowing into the inlet side of the hopper from rapidly dropping to the lower side, and to prevent the livestock manure from flowing into the hopper and immediately dropping to the lower side.
The blocking plate 240 is formed by a horizontal blocking plate 241 in a horizontal direction and a vertical blocking plate 242 in a vertical direction, and has a right angle shape, and livestock manure and urine flowing into the hopper need to flow along the vertical blocking plate, thereby preventing the livestock manure and urine from rapidly flowing into the wedge-shaped screen drum.
The flow rate verification port 250 attached to the upper surface of the hopper is attached for cleaning the inside of the hopper and visual confirmation of the inside of the hopper, and functions as an upper cover of the hopper.
A water level sensor 255 for sensing the water level in the hopper is attached to the upper surface of the hopper 200. The value measured by means of the water level sensing sensor is transmitted to the control panel.
If the water level in the hopper (i.e., the level of the livestock manure) reaches above a preset value by means of the water level sensing sensor 255, the operation of the reduction motor 150 driving the multistage wedge screen cylinder is interrupted and the driving of the pump 260 for flowing the livestock manure into the hopper is interrupted according to the control signal of the control panel. The water level sensor 255 is an element required for safe operation of the equipment.
The multistage wedge type screen cylinder 100 of the present invention receives and supplies livestock manure from the hopper, and is in a form in which a plurality of unit screen cylinders 100 are connected to each other in a longitudinal direction, wherein each of the unit screen cylinders 100 includes a plurality of coupling rings 110 and a plurality of wedge bars 120, the plurality of coupling rings 110 are aligned in the longitudinal direction, a plurality of coupling grooves 111 are formed in an inner circumferential surface in a circumferential direction, and the plurality of wedge bars 120 are coupled to the coupling grooves 111 of the plurality of coupling rings 110, respectively. For the multi-segmented wedge screen cylinder 100, it will be explained in more detail below with reference to fig. 4 to 7.
The outer drum 140 is the portion that surrounds and protects the multi-segment wedge screen drum. The livestock manure flows into one side of the outer tub, is separated into solid matter and separation liquid by means of the multi-stage wedge-shaped screen drum, and then is discharged from the separation liquid 320 dehydrated from the livestock manure through the separation liquid outlet installed at the lower side of the outer tub, and the dehydrated solid matter 310 of the livestock manure is discharged through the solid matter outlet installed at the other side of the outer tub.
An openable and closable cleaning opening/closing window 142 is formed on one side of the outer cylinder. The opening/closing window 142 for cleaning is installed to allow a user to open a part of the outer cylinder to clean the multi-stage wedge type screen cylinder inside the outer cylinder. A handle capable of opening and closing the opening/closing window for cleaning is formed on the upper part of the opening/closing window for cleaning.
Fig. 4 is a perspective view showing a multi-segmented wedge screen cylinder of the present invention, and fig. 5 is an enlarged perspective view showing a coupling ring and wedge bars of the present invention.
As shown in fig. 4 to 5, the multi-segment wedge-shaped screen cylinder 100 is a screen cylinder connected by a plurality of unit screen cylinders. The gap intervals between the wedge-shaped bars 120 of the unit sieve cylinders are formed differently for each unit sieve cylinder.
The unit sieve cylinder is used for transferring and dewatering the livestock manure along the length direction and comprises the following components: a plurality of coupling rings 110, the coupling rings 110 being arranged in order in a longitudinal direction, and having a plurality of coupling grooves 111 formed in an inner circumferential surface in a circumferential direction; a plurality of wedge bars 120, the plurality of wedge bars 120 being coupled to the coupling grooves 111 of the plurality of coupling rings 110, respectively.
More specifically, the coupling ring 110 has a ring structure in which a plurality of coupling grooves 111 are formed in a circumferential direction on the inner circumferential surface thereof.
The number of the coupling rings 110 is at least 2 or more in the unit screen cylinder, and the coupling grooves 111 are formed to be recessed in the inner circumferential surface of the coupling rings 110.
The cross-section of each of the plurality of wedge bars 120 is formed to correspond to the cross-section of the coupling groove 111, and is slidably coupled to the coupling groove 111 of each of the plurality of coupling rings 110. At this time, the plurality of wedge bars 120 are welded in a state of being slidably inserted into the plurality of coupling grooves 111, respectively.
On the other hand, the unit sieve cylinder transfers livestock manure from one side to the other side in the longitudinal direction by the transfer screw 190 rotatably installed therein, and discharges moisture separated from the livestock manure through the gap between the wedge bars 120 formed on the outer circumferential surface.
In this case, the unit screen cylinder increases the capacity of livestock manure treatment but decreases the solid matter recovery rate as the gap interval between the wedge bars 120 is formed wider, and decreases the capacity of livestock manure treatment but increases the solid matter recovery rate as the gap interval between the wedge bars 120 is formed narrower.
In the unit screen cylinder, the wider the gap interval between the wedge bars 120, the smaller the number of the connecting grooves 111 formed and the number of the wedge bars 120 installed, and the narrower the gap interval between the wedge bars 120, the larger the number of the connecting grooves 111 formed and the number of the wedge bars 120 installed.
The hopper 200 supplies livestock manure to the multi-segment wedge screen cylinder 100.
The outlet 300 is installed at the other side of the length direction in which the livestock manure falls in the multi-stage wedge-shaped screen cylinder, and is used for discharging solid matters dehydrated from the livestock manure. In this case, an elastic plate may be attached to the discharge port 300.
Therefore, the solid-liquid separator having a multi-stage wedge-shaped screen drum according to the present invention has an advantage in that the gap interval between the wedge-shaped bars of the unit screen drum is different for each unit screen drum, so that the shear stress is distributed differently for each unit screen drum, and the two problems of maximizing the livestock manure treatment capacity and minimizing the moisture content of the solid matter can be solved.
In addition, when the multi-section wedge-shaped screen cylinder is damaged, the multi-section wedge-shaped screen cylinder can be replaced and repaired according to parts, and the maintenance and management cost of products can be minimized.
On the other hand, the solid-liquid separator 1000 having the multi-stage wedge screen is attached to the upper surface of the hopper 200, and a water level sensor 255 is attached thereto. By means of the water level sensor, if the water level in the hopper reaches a value higher than a preset value, the operation of the multi-section wedge-shaped screen cylinder and the inflow of the livestock manure into the hopper are interrupted.
The water level sensor 255 serves to prevent the clogging of the multi-stage wedge-shaped screen cylinder 100 or the excessive inflow of the raw material, which causes the overflow of the raw material that has not been subjected to solid-liquid separation through the dehydrated solid matter discharge port 300 and the hopper 100.
On the other hand, in the multi-stage wedge screen cylinder 100, since the gap intervals between the wedge bars 120 of the unit screen cylinder are different for each unit screen cylinder, the discharge efficiency of the moisture separated from the sludge waste and the separation rate of the solid matter separated from the sludge waste are configured to be different for each unit screen cylinder, and the discharge efficiency of the moisture separated from the sludge waste can be maximized and the separation rate of the solid matter separated from the sludge waste can be minimized.
On the other hand, the unit screen cylinder may be fixed in a state in which the interval between the connection rings 110 is adjusted by coupling a support rod 130 to the connection rings 110.
In this case, the support rod 130 may be coupled to both surfaces of the unit screen cylinder, which are opposite to each other, of the pair of coupling rings 110 formed at both ends of the unit screen cylinder, and in this case, the pair of coupling rings 110 formed at both ends of the unit screen cylinder may be formed to have a wider diameter than the other coupling rings 110.
On the other hand, the multistage wedge screen cylinder 100 may be formed in a structure in which the coupling grooves 111 of the unit screen cylinders are arranged at intervals and are different for each unit screen cylinder.
At this time, the interval of the gaps between the wedge bars 120 of the unit screen cylinder can be adjusted by adjusting the arrangement intervals L1, L2, and L3 of the coupling grooves 111 of the unit screen cylinder.
In addition, the multi-sectional wedge screen cylinder 100 may be formed in a structure in which the thickness T of the wedge bars 120 of the unit screen cylinders is different from each other per unit screen cylinder.
At this time, the thickness T of the wedge bars 120 of the unit screen cylinder may be adjusted, and the gap interval between the wedge bars 120 of the unit screen cylinder may be adjusted.
In addition, the unit screen cylinder can be divided into a drainage unit screen cylinder 100-1, a concentration unit screen cylinder 100-2 and a dehydration unit screen cylinder 100-3.
At this time, the gap interval D1 between the wedge bars 120 of the drainage unit screen cylinder 100-1 may be formed to be the first largest, the gap interval D2 between the wedge bars 120 of the concentration unit screen cylinder 100-2 may be the second largest, and the gap interval D3 between the wedge bars 120 of the dewatering unit screen cylinder 100-3 may be the third largest.
At this time, the drainage unit sieve cylinder 100-1 is supplied with the livestock manure transferred from the sewage storage tank, the concentration unit sieve cylinder 100-2 is supplied with the livestock manure transferred from the drainage unit sieve cylinder 100-1, and the dehydration unit sieve cylinder 100-3 is supplied with the livestock manure transferred from the concentration unit sieve cylinder 100-2.
On the other hand, the gap interval D1 between the wedge bars 120 of the drainage unit sieve tube 100-1 is also formed to be the widest, and the livestock manure treatment capacity is the highest, but the moisture content in the solid matter is the most, and the moisture content of the solid matter is the highest.
In addition, the gap interval D2 between the wedge bars 120 of the concentration unit screen cylinder 100-2 is also formed to be the second width, and the livestock manure treatment capacity is the second height, but the moisture content in the solid matter is the second most and the moisture content of the solid matter is the second highest.
In addition, the gap interval D3 between the wedge bars 120 of the dewatering unit screen cylinder 100-3 is also formed to be the narrowest, the processing capacity of the livestock manure is the lowest, but the solid matter contains the least moisture, and the moisture content of the solid matter is the lowest.
Figure 6 is a conceptual diagram illustrating the principle of the multi-segment wedge screen cylinder of the present invention.
As shown in fig. 6, it was confirmed that the solid matters generated from the inflow moment of the livestock manure due to the dehydration of the livestock manure in the drainage unit sieve tube 100-1 were immediately generated, and the treatment capacity was maximized. This is because the treatment capacity of the drainage unit sieve cylinder 100-1 is highest.
It was also confirmed that the concentration unit sieve tube 100-2 gradually increases the amount of solid matter generated by dehydration of the livestock manure transferred from the drainage unit sieve tube 100-1.
It was also confirmed that the solid matter generation amount of the dewatering unit sieve tube 100-3 is increased to the maximum by dewatering the livestock manure transferred from the concentrating unit sieve tube 100-2, because the solid matter recovery rate of the dewatering unit sieve tube 100-3 is highest.
Therefore, the solid-liquid separator having the multi-stage wedge-shaped screen drum according to the present invention has an advantage that it can solve two problems of maximizing the livestock manure treatment capacity and minimizing the moisture content of the solid materials by making the gap intervals between the wedge-shaped bars of the unit screen drum different for each unit screen drum, and thus distributing the shear stress differently for each unit screen drum.
On the other hand, the coupling groove 111 may further include a tapered coupling tapered groove 111-1 on an inner circumferential surface of the coupling ring 110, a coupling curved groove 111-1 having a curvature on an end portion of the coupling tapered groove 111-1, and the wedge bar 120 may further include a wedge tapered portion 121 corresponding to the coupling tapered groove 111-1 and a wedge curved portion 122 corresponding to the coupling curved groove 111-1.
That is, the coupling grooves 111 and the wedge bars 120 may be formed in a triangular prism structure to maximize an area in contact-coupling with each other.
The coupling groove 111 may further include a circular groove formed in a circular structure on both sides in the longitudinal direction.
The circular groove functions to guide the wedge-shaped bar 120, which slides into the coupling groove 111, to the coupling groove 111 when the wedge-shaped bar hits against both longitudinal sides of the coupling groove 111.
Fig. 7 is a schematic view showing a method of manufacturing a multistage wedge screen drum of the present invention.
The manufacturing process of the multi-segment wedge screen cylinder of the present invention is illustrated in fig. 7.
First, in the step of manufacturing the unit screen cylinder, a plurality of coupling rings 110 having a plurality of coupling grooves 111 formed in the circumferential direction on the inner circumferential surface thereof are inserted into the fixing clips P having a cylindrical structure, and a plurality of wedge bars 120 are inserted and coupled into the coupling grooves 111 of the coupling rings 110, thereby manufacturing the unit screen cylinder. At this time, in order to maintain the interval between the coupling rings 110, spacers (not shown) having a circular arc structure may be installed between the coupling rings 110, respectively.
Then, in the step of manufacturing the multi-stage wedge screen cylinder, the unit screen cylinders are connected to each other in the longitudinal direction to manufacture the multi-stage wedge screen cylinder.
On the other hand, the step of manufacturing the unit screen cylinder may further include a step of coupling a support rod 130 to the coupling ring 110 in order to fix the interval of the coupling ring 110 in an adjusted state. In this case, the support rod 130 may be coupled to both surfaces of the unit screen cylinder, which are opposite to each other, of the pair of coupling rings 110 formed at both ends of the unit screen cylinder, and in this case, the pair of coupling rings 110 formed at both ends of the unit screen cylinder may be formed to have a wider diameter than the other coupling rings 110.
The present invention is not limited to the above-described embodiments, and the application range is various, and various modifications can be made without departing from the gist of the present invention claimed in the claims.
Claims (8)
1. A solid-liquid separator having a multi-stage wedge screen drum, comprising:
a hopper (200), wherein the hopper (200) flows livestock manure from the outside;
a plurality of segments of wedge-shaped screen cylinders (100), wherein the segments of wedge-shaped screen cylinders (100) receive livestock manure from the hopper, and a plurality of units of screen cylinders (100) are connected with each other along the length direction, wherein each unit of screen cylinder (100) comprises a plurality of connecting rings (110) and a plurality of wedge-shaped strips (120), the connecting rings (110) are arranged in order along the length direction, a plurality of connecting grooves (111) are formed on the inner circumferential surface along the circumferential direction, and the wedge-shaped strips (120) are respectively connected with the connecting grooves (111) of the connecting rings (110);
an outer drum (140), the outer drum (140) surrounding the multi-section wedge screen drum;
a solid material outlet (310), wherein the solid material outlet (310) is arranged at one side of the outer cylinder and is used for discharging the livestock manure solid materials dehydrated in the multi-section wedge-shaped screen cylinder (100);
the separation liquid outlet (320), the said separation liquid outlet (320) is mounted to another side of the said outer cylinder, for the water dehydrated in the said multistage wedge screen cylinder (100) to discharge;
a reduction motor (150), the reduction motor (150) driving the multi-segment wedge screen cylinder; and
a control panel (400), the control panel (400) controlling operation of the reduction motor;
wherein the gap intervals between the wedge-shaped strips (120) of the unit screen cylinder are different according to each unit screen cylinder.
2. The solid-liquid separator with a multi-segmented wedge screen drum of claim 1,
further comprising: a water level sensing sensor (255), wherein the water level sensing sensor (255) is arranged above the hopper (200) and senses the water level in the hopper,
and by means of the water level perception sensor, if the water level in the hopper reaches a value above a preset value, the driving of the multi-section wedge-shaped screen cylinder and the driving of the pump for flowing the livestock excrement into the hopper are interrupted according to the control signal of the control panel.
3. The solid-liquid separator with a multi-segmented wedge screen drum of claim 1,
the connecting grooves (111) of the unit screen drum are arranged at intervals different for each unit screen drum,
the thickness of the wedge-shaped bars (120) of the unit screen cylinders is different from each other per unit screen cylinder.
4. The solid-liquid separator with a multi-segmented wedge screen drum of claim 1,
the unit screen cylinder is divided into a drainage unit screen cylinder (100-1), a concentration unit screen cylinder (100-2) and a dehydration unit screen cylinder (100-3),
the interval between the gaps of the wedge-shaped strips (120) of the drainage unit screen cylinder (100-1) is the first big, the interval between the gaps of the wedge-shaped strips (120) of the concentration unit screen cylinder (100-2) is the second big, and the interval between the gaps of the wedge-shaped strips (120) of the dewatering unit screen cylinder (100-3) is the third big.
5. The solid-liquid separator with a multi-segmented wedge screen drum of claim 1,
one side of the outer cylinder is provided with: a cleaning opening/closing window which can be opened and closed so as to open a part of the outer cylinder, and which cleans the multi-stage wedge-shaped screen cylinder inside the outer cylinder; and
a handle capable of opening and closing the opening/closing window for cleaning.
6. The solid-liquid separator with a multi-segmented wedge screen drum of claim 1,
on the side of the inflow port for the livestock feces and urine flowing in through the hopper,
an overflow pipe for reflowing the livestock manure is formed in the communication so as to prevent the livestock manure from excessively flowing in.
7. The solid-liquid separator with a multi-segmented wedge screen drum of claim 1,
a flow rate adjusting valve for adjusting the amount of livestock manure and urine flowing in through the hopper is formed at an inlet side of the hopper.
8. The solid-liquid separator with a multi-segmented wedge screen drum of claim 1,
in order to prevent the livestock manure flowing into the inlet side of the hopper from rapidly dropping to the lower side, a blocking plate (240) for preventing the livestock manure from directly dropping to the lower side is installed in the hopper.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2019-0098087 | 2019-08-12 | ||
| KR1020190098087A KR102202049B1 (en) | 2019-08-12 | 2019-08-12 | solid-liquid separation equipment with multi-stage wedge screen for wastewater treatment |
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| CN111204950A true CN111204950A (en) | 2020-05-29 |
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| CN202010101053.8A Pending CN111204950A (en) | 2019-08-12 | 2020-02-19 | Solid-liquid separator with multi-section wedge-shaped screen drum |
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| CN (1) | CN111204950A (en) |
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|---|---|---|---|---|
| CN114772856A (en) * | 2022-04-27 | 2022-07-22 | 深圳世纪盛源环境科技有限公司 | Sewage treatment system and sewage treatment method using membrane bioreactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113289774B (en) * | 2021-05-17 | 2023-04-11 | 陕西陕煤铜川矿业有限公司 | Coarse slime coal recovery and clean coal system and method |
| KR102494888B1 (en) * | 2021-06-11 | 2023-02-06 | 서윤배 | treatment apparatus for filth |
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| CN103702950A (en) * | 2012-07-24 | 2014-04-02 | （株）国际环境技术 | Solid-liquid separator for excrements of domestic animals |
| CN205687777U (en) * | 2016-06-20 | 2016-11-16 | 北京万侯环境技术开发有限公司 | Sludge pressing dehydration device |
| CN206157021U (en) * | 2016-11-15 | 2017-05-10 | 鱼台光华环保科技有限公司 | Screw extrusion formula dung dewatering machine |
| JP2019034293A (en) * | 2017-08-10 | 2019-03-07 | ククジェ エンバイロメンタル テクノロジー カンパニー リミテッドＫＵＫＪＡＥ Ｅｎｖｉｒｏｎｍｅｎｔａｌ Ｔｅｃｈｎｏｌｏｇｙ ＣＯ．， Ｌｔｄ． | Multistage wedge screen |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200322088Y1 (en) * | 2003-01-23 | 2003-07-31 | 여옥규 | fluid production structure using water level |
| KR101667540B1 (en) | 2014-10-29 | 2016-10-28 | 대한민국 | Liquid-Solid separator for livestock manure |
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- 2019-08-12 KR KR1020190098087A patent/KR102202049B1/en active IP Right Grant
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- 2020-02-19 CN CN202010101053.8A patent/CN111204950A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103702950A (en) * | 2012-07-24 | 2014-04-02 | （株）国际环境技术 | Solid-liquid separator for excrements of domestic animals |
| CN205687777U (en) * | 2016-06-20 | 2016-11-16 | 北京万侯环境技术开发有限公司 | Sludge pressing dehydration device |
| CN206157021U (en) * | 2016-11-15 | 2017-05-10 | 鱼台光华环保科技有限公司 | Screw extrusion formula dung dewatering machine |
| JP2019034293A (en) * | 2017-08-10 | 2019-03-07 | ククジェ エンバイロメンタル テクノロジー カンパニー リミテッドＫＵＫＪＡＥ Ｅｎｖｉｒｏｎｍｅｎｔａｌ Ｔｅｃｈｎｏｌｏｇｙ ＣＯ．， Ｌｔｄ． | Multistage wedge screen |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114772856A (en) * | 2022-04-27 | 2022-07-22 | 深圳世纪盛源环境科技有限公司 | Sewage treatment system and sewage treatment method using membrane bioreactor |
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| KR102202049B1 (en) | 2021-01-12 |
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Application publication date: 20200529 |