CN114733656B - Synchronous split-phase deslagging and impurity removing system for pretreated kitchen waste - Google Patents
Synchronous split-phase deslagging and impurity removing system for pretreated kitchen waste Download PDFInfo
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- CN114733656B CN114733656B CN202210436502.3A CN202210436502A CN114733656B CN 114733656 B CN114733656 B CN 114733656B CN 202210436502 A CN202210436502 A CN 202210436502A CN 114733656 B CN114733656 B CN 114733656B
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- 239000010806 kitchen waste Substances 0.000 title claims abstract description 42
- 239000012535 impurity Substances 0.000 title claims abstract description 37
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 21
- 238000000926 separation method Methods 0.000 claims abstract description 121
- 239000002893 slag Substances 0.000 claims abstract description 61
- 239000002699 waste material Substances 0.000 claims abstract description 23
- 230000007704 transition Effects 0.000 claims abstract description 22
- 238000005507 spraying Methods 0.000 claims abstract description 20
- 239000002002 slurry Substances 0.000 claims abstract description 19
- 238000003860 storage Methods 0.000 claims abstract description 19
- 239000013049 sediment Substances 0.000 claims description 39
- 239000012071 phase Substances 0.000 claims description 34
- 238000007599 discharging Methods 0.000 claims description 29
- 238000003756 stirring Methods 0.000 claims description 27
- 238000001514 detection method Methods 0.000 claims description 15
- 239000007787 solid Substances 0.000 claims description 14
- 238000005406 washing Methods 0.000 claims description 14
- 238000007790 scraping Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000005191 phase separation Methods 0.000 claims description 10
- 230000018044 dehydration Effects 0.000 claims description 9
- 238000006297 dehydration reaction Methods 0.000 claims description 9
- 238000007667 floating Methods 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 8
- 239000007791 liquid phase Substances 0.000 claims description 8
- 239000010813 municipal solid waste Substances 0.000 claims description 7
- 239000004519 grease Substances 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 230000002829 reductive effect Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000004537 pulping Methods 0.000 abstract description 2
- 230000002441 reversible effect Effects 0.000 description 4
- 239000011268 mixed slurry Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003278 egg shell Anatomy 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/24—Multiple arrangement thereof
- B04C5/26—Multiple arrangement thereof for series flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C11/00—Accessories, e.g. safety or control devices, not otherwise provided for, e.g. regulators, valves in inlet or overflow ducting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/08—Vortex chamber constructions
- B04C5/103—Bodies or members, e.g. bulkheads, guides, in the vortex chamber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/24—Multiple arrangement thereof
- B04C5/30—Recirculation constructions in or with cyclones which accomplish a partial recirculation of the medium, e.g. by means of conduits
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/74—Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes
Abstract
The invention provides a synchronous split-phase deslagging and impurity removing system for pretreated kitchen waste, which comprises a pipeline heater, a primary separation bin, a scum aggregate screw conveyor, a hot spraying impurity washer, a transition bin, a secondary separation bin, a deslagging bin, a waste residue temporary storage bin and a waste collection and transportation vehicle, wherein the kitchen waste subjected to pulping pretreatment from the source can be effectively separated and removed from heavy-phase impurities and light-phase impurities in the kitchen waste through the primary separation bin in a first treatment link, so that the running cost and maintenance cost of the whole system are reduced, and the secondary pollution of white waste is reduced; the physical characteristics of impurities in the kitchen waste are respectively and synchronously removed in the first-stage separation bin and the second-stage separation bin, so that the manufacturing cost and the operation and use cost of the device can be effectively reduced compared with the method of split-phase stepwise removal; the bottom heavy-phase slurry and the upper light-phase slurry in the kitchen waste are subjected to slag removal and impurity removal in a targeted manner, so that the operation cost of kitchen waste treatment is reduced.
Description
Technical Field
The invention relates to a synchronous phase-splitting treatment system, in particular to a synchronous phase-splitting deslagging and impurity-removing system for pretreated kitchen waste.
Background
In the process of collecting and treating the kitchen waste, the kitchen waste slurry contains heavy phase impurities such as partial bone residues, eggshells, broken shells and the like, and light phase impurities such as plastic bags, plastic boxes, woven bags and the like. After a period of accumulation, the heavy phase impurities can cause the problems of blockage of a process pipeline, reduction of the volume of the anaerobic tank, reduction of the gas production rate of the anaerobic tank and the like; the light phase impurity can cause the increase of the system operation load, and simultaneously, the undegradable light phase impurity can also flow into the environment along with the dehydration mud again, causes secondary pollution to ecology. Therefore, how to solve the problem of removing the light phase and heavy phase impurities in the kitchen waste becomes a key of efficient and stable operation of the recycling treatment of the kitchen waste.
Disclosure of Invention
In order to overcome the defects and the shortcomings in the prior art, the invention provides a synchronous phase-splitting deslagging and impurity-removing system for pretreated kitchen waste.
The technical scheme adopted for solving the technical problems is as follows:
a synchronous phase separation slagging-off of kitchen garbage after being used for pretreatment and edulcoration system, its characterized in that: the system comprises a pipeline heater, a primary separation bin, a scum aggregate screw conveyor, a hot spraying impurity washer, a transition bin, a secondary separation bin, a slag discharge bin, a waste residue temporary storage bin and a garbage cleaning and transporting vehicle; the kitchen waste after pretreatment flows into the first-stage separation bin for cyclone phase separation after being heated by the pipeline heater, the scum aggregate screw conveyor is connected with a scum outlet at the upper part of the first-stage separation bin, upper scum is sent into a hot spraying washing impurity machine connected with the scum aggregate screw conveyor, the scum is sprayed and washed by hot water to separate out a heterogeneous phase and an oil phase, the heterogeneous phase is sent into a waste residue temporary storage bin, the oil phase automatically flows into a transition bin connected with an oil outlet at the bottom of the hot spraying washing impurity machine, the transition bin is simultaneously connected with an overflow pipe of the first-stage separation bin, slurry overflowed from the first-stage separation bin is mixed with the automatically flowing oil phase in the transition bin, the second-stage separation bin is connected with the bottom of the first-stage separation bin through a pipeline, a top overflow port of the second-stage separation bin is connected with a top feed port of the first-stage separation bin, the slag discharging bin is connected with a bottom port of the second-stage separation bin, and the slag temporary storage bin is communicated with a slag temporary storage bin, and a garbage truck is parked below the waste residue temporary storage bin to receive the waste residue in the kitchen waste residue.
Further, as a further preferable embodiment of the invention, a temperature detection device and a preset temperature threshold value are arranged in the pipeline heater, and if and only after the temperature detection device detects that the pipeline heater heats the pretreated kitchen waste to the preset temperature threshold value, the kitchen waste heated in the pipeline heater is sent to the inside of the primary separation bin.
Further, as a further preferable embodiment of the invention, the direction of the feed inlet of the primary separation bin is along the tangential direction of the circumference of the bin wall, and the primary separation bin comprises an electric stirrer, a floating device, a slag scraping blade, a one-way bearing, a primary electric gate valve and a high-solid-content centrifugal pump; the drag-out device is arranged on a stirring shaft of the electric stirrer and synchronously rotates with the stirring shaft, the slag scraping blade is supported on the stirring shaft through a one-way bearing and can rotate unidirectionally relative to the stirring shaft, the primary electric gate valve is arranged between a bottom slag outlet of the primary separation bin and a feeding inlet of the high-solid-content centrifugal pump, and the high-solid-content centrifugal pump is arranged between the bottom slag outlet of the primary separation bin and the secondary separation bin.
Further, as a further preferred embodiment of the invention, a sediment detection device is further arranged in the primary separation bin, when the sediment detection device detects that sediment in the primary separation bin does not exceed a preset threshold value, the electric stirrer rotates positively, the floating device rotates synchronously and positively along with a stirring shaft of the electric stirrer, the one-way bearing is not locked, the sediment scraping blade does not rotate synchronously and positively along with the stirring shaft of the electric stirrer, and the primary electric gate valve and the high-solid centrifugal pump do not work; when sediment detection device detects that sediment in the one-level separation storehouse exceeds the threshold value of predetermineeing, electric mixer reverse rotation, drag for the synchronous reverse rotation of the (mixing) shaft that floats the device and follow electric mixer, one-way bearing locks, scrape the synchronous reverse rotation of (mixing) shaft that the sediment blade followed electric mixer, one-level electric gate valve and the high centrifugal pump that contains of one-level separation storehouse bottom begin the work simultaneously, carry the sediment in the storehouse to the second grade separation storehouse in, after sediment is discharged completely, high centrifugal pump that contains is closed, and electric gate valve is closed again, then electric mixer also stops reverse rotation.
Further, as a further preferable embodiment of the invention, the hot-spraying impurity washing machine is internally provided with a hot-water spraying device and an extrusion dehydration device, after receiving the scum conveyed by the scum aggregate screw conveyor, the hot-water spraying device sprays hot water on the scum first, and after washing off the grease coated on the scum, the extrusion dehydration device performs extrusion dehydration on the cleaned scum.
Further, as a further preferable embodiment of the invention, the transition bin comprises a slurry pump, and the slurry pump is arranged at a discharge hole position of the transition bin.
Further, as a further preferable embodiment of the invention, the secondary separation bin comprises a secondary electric gate valve, and the secondary electric gate valve is positioned between a bottom slag hole of the secondary separation bin and the slag discharging bin.
Further, as a further preferable embodiment of the invention, the slag discharging bin comprises a slag discharging screw conveyor, and the slag discharging screw conveyor is arranged below a slag discharging hole at the bottom of the slag discharging bin.
Further, as a further preferable embodiment of the invention, the direction of the feed inlet of the secondary separation bin is along the tangential direction of the circumference of the bin wall, the sediment conveyed by the high-solid centrifugal pump is separated in the secondary separation bin by cyclone, the clear slurry flows back to the inside of the primary separation bin through the top overflow port of the secondary separation bin through the top feed inlet of the primary separation bin, and the sediment at the bottom falls to the inside of the sediment discharge bin through the bottom sediment outlet of the secondary separation bin.
Further, as a further preferable embodiment of the invention, the secondary electric gate valve controls the start and stop of the slag discharging screw conveyor, a top overflow port of the slag discharging bin is connected with a top feed port of the primary separation bin, and when the liquid phase in the primary separation bin is higher than a preset threshold value, the liquid phase in the slag discharging bin overflows from the top feed port of the primary separation bin back to the inside of the primary separation bin through the top overflow port.
Compared with the prior art, the invention has the following beneficial effects:
(1) The invention provides a synchronous phase-splitting deslagging and impurity-removing system for pretreated kitchen waste, which can effectively separate and remove heavy phase impurities and light phase impurities in the kitchen waste subjected to pulping pretreatment from a source through a first-stage separation bin in a first disposal link, so that the running cost and maintenance cost of the whole system are reduced, and the secondary pollution of white waste is also reduced.
(2) The invention provides a synchronous phase-separation deslagging and impurity-removal system for pretreated kitchen waste, which is characterized in that the phase-separation synchronous removal is respectively carried out in a first-stage separation bin and a second-stage separation bin according to the physical characteristics of impurities in the kitchen waste, and compared with a phase-separation step-by-step removal method, the synchronous phase-separation deslagging and impurity-removal system can effectively reduce the manufacturing cost and the operation and use cost of equipment.
(3) The invention provides a synchronous phase-separation deslagging and impurity-removing system for pretreated kitchen waste, which only needs to pertinently deslagging and impurity-removing bottom heavy-phase slurry and upper-layer light-phase slurry in the kitchen waste through a rotational flow deslagging blade and a fishing-floating impurity-removing device arranged in a primary separation bin, and does not need to deslagge and impurity-remove all materials in the kitchen waste, so that the operation cost of kitchen waste treatment is reduced.
(4) The invention provides a synchronous phase-splitting deslagging and impurity-removing system for pretreated kitchen waste, which is integrally designed, so that the occupied area and maintenance period of equipment can be effectively reduced, and the service life of the equipment can be prolonged.
Drawings
Fig. 1 is a schematic structural view of a synchronous phase-splitting deslagging and impurity-removing system for pretreated kitchen waste.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Fig. 1 shows a synchronous split-phase deslagging and impurity removing system for pretreated kitchen waste, which is provided by a first embodiment of the invention, and comprises a pipeline heater 1, a primary separation bin 2, a scum aggregate screw conveyor 3, a thermal spraying impurity washing machine 4, a transition bin 5, a secondary separation bin 6, a slag discharge bin 7, a waste residue temporary storage bin 8 and a waste cleaning and transporting vehicle 9.
In this embodiment, as shown in fig. 1, the pipeline heater 1 is connected to the primary separation bin 2, and the kitchen waste after the source is pretreated is heated by the pipeline heater 1 and flows into the primary separation bin 2 for cyclone phase separation. As a further preference of the embodiment, a temperature detection device and a preset temperature threshold value are arranged inside the pipeline heater 1, and if and only if the temperature detection device detects that the pipeline heater 1 heats the pretreated kitchen waste to the preset temperature threshold value, the kitchen waste heated in the pipeline heater 1 is sent into the primary separation bin 2; the viscosity of the kitchen waste heated to the preset temperature threshold is reduced, the layering effect of each phase is more obvious when the kitchen waste passes through the cyclone separation of the primary separation bin 2, and the light phase impurities coated in the grease can be effectively separated from the grease.
In the embodiment, the direction of a feed inlet of the primary separation bin 2 is along the tangential direction of the circumference of a bin wall, and the primary separation bin 2 comprises an electric stirrer 2-1, a floating device 2-2, a slag scraping blade 2-3, a one-way bearing 2-4, a primary electric gate valve 2-5 and a high-solid-content centrifugal pump 2-6; the skimming device 2-2 is arranged on the stirring shaft of the electric stirrer 2-1 and synchronously rotates with the stirring shaft, the slag scraping blade 2-3 is supported on the stirring shaft through a one-way bearing 2-4 and can rotate in a one-way relative to the stirring shaft, specifically, after the first-stage separation bin 2 separates and delaminates solid phase, liquid phase and oil phase in kitchen waste, the electric stirrer 2-1 starts to rotate in a positive direction, the skimming device 2-2 on the stirring shaft is driven to drag oil phase and light phase impurities floating on the liquid surface onto the slag collecting screw conveyor 3, and because the slag scraping blade 2-3 is connected with the stirring shaft of the electric stirrer 2-1 through the one-way bearing 2-4, when the electric stirrer 2-1 rotates in a positive direction, the one-way bearing 2-4 is not locked and can rotate freely relative to the stirring shaft of the electric stirrer, so that the slag scraping blade 2-3 can keep static relative to the stirring shaft of the electric stirrer 2-1 when the skimming device 2-2 rotates in a synchronous positive direction along with the stirring shaft of the electric stirrer 2-1.
The primary separation bin 2 further comprises a primary electric gate valve 2-5 and a high-solid centrifugal pump 2-6, wherein the primary electric gate valve 2-5 is arranged between a bottom slag hole of the primary separation bin 2 and a feed hole of the high-solid centrifugal pump 2-6 to start the high-solid centrifugal pump 2-6 when sediment inside the primary separation bin 2 exceeds a preset threshold value, and the high-solid centrifugal pump 2-6 is arranged between the bottom slag hole of the primary separation bin 2 and the secondary separation bin 6 to convey the sediment into the secondary separation bin 6.
As a further preferred mode, a sediment detection device is further arranged in the primary separation bin 2, when the sediment detection device detects that sediment in the primary separation bin 2 does not exceed a preset threshold value, the electric stirrer 2-1 rotates positively, the fishing and floating device 2-2 rotates synchronously positively along with a stirring shaft of the electric stirrer 2-1, the one-way bearing 2-4 is not locked, the sediment scraping blade 2-3 does not rotate synchronously positively along with the stirring shaft of the electric stirrer 2-1, and the primary electric gate valve 2-5 and the high solid content centrifugal pump 2-6 do not work; when the sediment detection device detects that sediment in the primary separation bin 2 exceeds a preset threshold value, the electric stirrer 2-1 reversely rotates, the fishing and floating device 2-2 synchronously reversely rotates along with a stirring shaft of the electric stirrer 2-1, the one-way bearing 2-4 is locked, the sediment scraping blade 2-3 synchronously reversely rotates along with the stirring shaft of the electric stirrer 2-1, meanwhile, the primary electric gate valve 2-5 and the high solid centrifugal pump 2-6 at the bottom of the primary separation bin 2 start to work, sediment in the bin is conveyed into the secondary separation bin 6, after the sediment is completely discharged, the high solid centrifugal pump 2-6 is closed, the electric gate valve 2-5 is closed again, and then the electric stirrer 2-1 also stops reversely rotating.
The scum aggregate screw conveyor 3 is connected with a scum outlet at the upper part of the primary separation bin 2, the scum at the upper layer is sent into a hot spraying impurity washing machine 4 connected with the scum aggregate screw conveyor 3, the scum is sprayed and washed by hot water, then a mixed phase and an oil phase are separated, the mixed phase is sent into a waste residue temporary storage bin 8, and the oil phase automatically flows into a transition bin 5 connected with an oil outlet at the bottom of the hot spraying impurity washing machine 4; in this embodiment, as shown in fig. 1, a hot water spraying device and an extrusion dehydration device are arranged in the hot spraying impurity washing machine 4, after receiving the scum conveyed by the scum aggregate screw conveyor 3, the hot water spraying device sprays hot water on the scum first, after washing off the grease wrapped on the scum, the extrusion dehydration device extrudes and dehydrates the cleaned scum again, the cleaned liquid phase automatically flows to the transition bin 5 through an oil outlet at the bottom of the hot spraying impurity washing machine 4, and the dehydrated scum falls into the waste residue temporary storage bin 8.
As shown in fig. 1, the transition bin 5 is connected with an overflow pipe of the primary separation bin 2 at the same time, the slurry overflowed from the primary separation bin 2 is mixed with the self-flowing oil phase in the transition bin 5, the slurry overflowed from the primary separation bin 2 and the oil phase of the hot spraying impurity washer 4 are mixed and stirred in the transition bin 5, the oil content ratio of kitchen waste can be fully ensured, and the mixed slurry is sent to a subsequent treatment device by the slurry pump 5-1; preferably, therefore, the transition bin 5 comprises a slurry pump 5-1, the slurry pump 5-1 being mounted at the discharge port position of the transition bin 5 for transporting mixed slurry in the transition bin 5.
As shown in fig. 1, the embodiment is further provided with a secondary separation bin 6, the secondary separation bin 6 is connected with the bottom of the primary separation bin 2 through a pipeline, a top overflow port of the secondary separation bin 6 is connected with a top feed port of the primary separation bin 2, the secondary separation bin 6 comprises a secondary electric gate valve 6-1, and the secondary electric gate valve 6-1 is positioned between a bottom slag hole of the secondary separation bin 6 and a slag discharging bin 7; the direction of the feed inlet of the secondary separation bin 6 is along the tangential direction of the circumference of the bin wall, sediment conveyed by the high-solid-content centrifugal pump 2-6 is separated in the secondary separation bin 6 by cyclone, clear slurry flows back to the inside of the primary separation bin 2 through the top overflow port of the secondary separation bin 6 and the top feed inlet of the primary separation bin 2, when sediment in the secondary separation bin 6 exceeds a preset threshold value, the secondary electric gate valve 6-1 is started, and sediment at the bottom of the secondary separation bin 6 falls into the slag discharge bin 7 through the bottom slag outlet of the secondary separation bin 6.
The slag discharging bin 7 is connected with a slag outlet at the bottom of the secondary separation bin 6, the slag outlet of the slag discharging bin 7 is communicated with a temporary waste slag storage bin 8, the slag discharging bin 7 comprises a slag discharging screw conveyor 7-1, and the slag discharging screw conveyor 7-1 is arranged below the slag outlet at the bottom of the slag discharging bin 7; the second-stage electric gate valve 6-1 controls the start and stop of the slag discharging screw conveyor 7-1, the top overflow port of the slag discharging bin 7 is connected with the top feed port of the first-stage separation bin 2, when the liquid phase in the first-stage separation bin 2 is higher than a preset threshold value, the second-stage electric gate valve 6-1 is started, and the liquid phase in the slag discharging bin 7 flows out from the top feed port of the first-stage separation bin 2 through the top overflow port and overflows back into the first-stage separation bin 2.
A garbage truck 9 is parked below the temporary waste storage bin 8 to receive waste residues and waste impurities in the kitchen garbage.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (3)
1. A synchronous phase separation slagging-off of kitchen garbage after being used for pretreatment and edulcoration system, its characterized in that: the system comprises a pipeline heater (1), a primary separation bin (2), a scum aggregate screw conveyor (3), a hot spraying impurity washer (4), a transition bin (5), a secondary separation bin (6), a slag discharge bin (7), a waste residue temporary storage bin (8) and a garbage cleaning and transporting vehicle (9); the kitchen waste after pretreatment flows into the first-stage separation bin (2) for cyclone phase separation after being heated by the pipeline heater (1), the scum aggregate screw conveyor (3) is connected with a scum outlet at the upper part of the first-stage separation bin (2), the scum at the upper layer is sent into a hot spraying washing impurity machine (4) connected with the scum aggregate screw conveyor (3), the scum is sprayed and washed by hot water and then is separated into an impurity phase and an oil phase, the impurity phase is sent into a waste residue temporary storage bin (8), the oil phase flows into a transition bin (5) connected with an oil outlet at the bottom of the hot spraying impurity washing machine (4), the transition bin (5) is simultaneously connected with an overflow pipe of the first-stage separation bin (2), the overflowed slurry and the flowing oil phase are mixed in the transition bin (5), the second-stage separation bin (6) is connected with the bottom of the first-stage separation bin (2) through a pipeline, an overflow port at the top of the second-stage separation bin (6) is connected with a slag discharge port at the top of the first-stage separation bin (2), and the waste residue temporary storage bin (7) is connected with a waste residue storage bin (8) at the bottom of the second-stage separation bin (7), and the waste residue storage bin (8) is connected with the waste residue storage bin (7) in a temporary storage bin (8) through a waste residue storage bin (9);
the direction of a feed inlet of the primary separation bin (2) is along the tangential direction of the circumference of the bin wall, and the primary separation bin (2) comprises an electric stirrer (2-1), a fishing and floating device (2-2), a slag scraping blade (2-3), a one-way bearing (2-4), a primary electric gate valve (2-5) and a high-solid-content centrifugal pump (2-6); the skimming device (2-2) is arranged on a stirring shaft of the electric stirrer (2-1) and rotates synchronously with the stirring shaft, the slag scraping blade (2-3) is supported on the stirring shaft through a one-way bearing (2-4) and can rotate unidirectionally relative to the stirring shaft, the primary electric gate valve (2-5) is arranged between a bottom slag hole of the primary separation bin (2) and a feed inlet of the high-solid centrifugal pump (2-6), and the high-solid centrifugal pump (2-6) is arranged between a bottom slag hole of the primary separation bin (2) and the secondary separation bin (6);
the primary separation bin (2) is internally provided with a sediment detection device, when the sediment detection device detects that sediment in the primary separation bin (2) does not exceed a preset threshold value, the electric stirrer (2-1) rotates positively, the fishing and floating device (2-2) synchronously rotates positively along with a stirring shaft of the electric stirrer (2-1), the one-way bearing (2-4) is not locked, the sediment scraping blade (2-3) does not synchronously rotate positively along with the stirring shaft of the electric stirrer (2-1), and the primary electric gate valve (2-5) and the high-solid-content centrifugal pump (2-6) do not work; when the sediment detection device detects that sediment in the primary separation bin (2) exceeds a preset threshold value, the electric stirrer (2-1) reversely rotates, the drag-up device (2-2) synchronously reversely rotates along with a stirring shaft of the electric stirrer (2-1), the one-way bearing (2-4) is locked, the sediment scraping blade (2-3) synchronously reversely rotates along with the stirring shaft of the electric stirrer (2-1), meanwhile, the primary electric gate valve (2-5) and the high solid centrifugal pump (2-6) at the bottom of the primary separation bin (2) start to work, sediment in the bin is conveyed into the secondary separation bin (6), after the sediment is completely discharged, the high solid centrifugal pump (2-6) is closed, the electric gate valve (2-5) is closed again, and then the electric stirrer (2-1) also stops reversely rotating;
the hot spraying impurity washing machine (4) is internally provided with a hot water spraying device and an extrusion dehydration device, after receiving the scum conveyed by the scum aggregate screw conveyor (3), the hot water spraying device firstly sprays the scum with hot water, and after washing away the grease wrapped on the scum, the extrusion dehydration device performs extrusion dehydration on the cleaned scum;
the secondary separation bin (6) comprises a secondary electric gate valve (6-1), and the secondary electric gate valve (6-1) is positioned between a bottom slag outlet of the secondary separation bin (6) and the slag discharging bin (7);
the slag discharging bin (7) comprises a slag discharging screw conveyor (7-1), and the slag discharging screw conveyor (7-1) is arranged below a slag discharging hole at the bottom of the slag discharging bin (7);
the direction of the feed inlet of the secondary separation bin (6) is along the tangential direction of the circumference of the bin wall, sediment conveyed by the high-solid centrifugal pump (2-6) is separated in the secondary separation bin (6) through cyclone, clear slurry flows back to the inside of the primary separation bin (2) through the top overflow port of the secondary separation bin (6) through the top feed inlet of the primary separation bin (2), and sediment at the bottom falls to the inside of the sediment discharge bin (7) through the bottom slag outlet of the secondary separation bin (6);
the secondary electric gate valve (6-1) controls the start and stop of the slag discharging screw conveyor (7-1), a top overflow port of the slag discharging bin (7) is connected with a top feed port of the primary separation bin (2), and when the liquid phase in the primary separation bin (2) is higher than a preset threshold value, the liquid phase in the slag discharging bin (7) overflows from the top feed port of the primary separation bin (2) through the top overflow port and flows back into the primary separation bin (2).
2. The synchronous phase-splitting deslagging and impurity-removing system for pretreated kitchen waste according to claim 1, wherein the system comprises the following components: the kitchen waste pretreatment device is characterized in that a temperature detection device and a preset temperature threshold value are arranged inside the pipeline heater (1), and after the temperature detection device detects that the pipeline heater (1) heats the pretreated kitchen waste to the preset temperature threshold value, the kitchen waste heated in the pipeline heater (1) is sent to the inside of the primary separation bin (2).
3. The synchronous phase-splitting deslagging and impurity-removing system for pretreated kitchen waste according to claim 1, wherein the system comprises the following components: the transition bin (5) comprises a slurry pump (5-1), and the slurry pump (5-1) is arranged at the position of a discharge hole of the transition bin (5).
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| CN114733656A (en) | 2022-07-12 |
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