CN113334825A - Organic garbage treatment system - Google Patents
Organic garbage treatment system Download PDFInfo
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- CN113334825A CN113334825A CN202110613710.1A CN202110613710A CN113334825A CN 113334825 A CN113334825 A CN 113334825A CN 202110613710 A CN202110613710 A CN 202110613710A CN 113334825 A CN113334825 A CN 113334825A
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- filter screen
- shaft
- tank body
- main shaft
- filter
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- 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
- B30B9/14—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 operating with only one screw or worm
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/32—Discharging presses
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- 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
- B30B9/127—Feed means
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- 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
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- 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
- B30B9/26—Permeable casings or strainers
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- 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
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to an organic garbage treatment system.A tank body of a charging tank is vertically arranged on an upper bracket of a frame, a stirring motor is arranged on a top cover of the tank body and is connected with a stirring shaft arranged in the tank body, weighing sensors are arranged between supporting seats and the frame, a discharging port at the bottom of the tank body is communicated with a charging box of an extrusion dehydration device, and an electric valve is arranged at the discharging port of the tank body; the squeezing dehydration device is transversely arranged on the base and positioned at the lower part of the charging bucket, the squeezing motor is connected with one end of the main shaft through an output shaft of the speed reducer, the filter drum comprises a feeding box at the upper front part and a plurality of semicircular filter screen units, the feeding box is assembled with the plurality of filter screen units to form a closed cavity, and the conical surface of the pressing cone of the solid slag discharging mechanism is blocked at the slag outlet of the filter drum. The invention has the characteristics of compact structure, stable discharge dryness, improved solid-liquid separation efficiency and convenient maintenance, and can reduce the loss of organic matters and improve the grease content in free water.
Description
Technical Field
The invention relates to an organic garbage treatment system, and belongs to the technical field of organic garbage treatment.
Background
The food and beverage garbage refers to garbage generated in daily life, food processing, food service, unit food supply and other activities of residents. The main sources of the food waste are family kitchens, restaurants, dining halls, markets and other industries related to food processing, and the food waste contains extremely high moisture and organic matters, is easy to rot and generates stink. After proper treatment and processing, the biomass can be converted into new resources, the characteristics of high organic matter content enable the biomass to be used as fertilizer and feed after strict treatment, methane can be generated to be used as fuel or power generation, and the grease part can be used for preparing biofuel.
In order to fully utilize organic matters in the kitchen waste to generate biogas and recover grease in the subsequent process, in the treatment process of the kitchen waste, solid-liquid separation treatment is usually carried out on the kitchen waste by using a spiral extrusion dehydrator, and materials are extruded to press out moisture in the kitchen waste in the conveying process by using a spiral blade of a main shaft. However, the organic waste has very complicated components and has the problems of filter screen blockage and serious abrasion. In addition, when the amount of the kitchen waste added is small or the feeding speed of the kitchen waste is low, the kitchen waste is directly pushed out under the action of the extrusion screw after entering the filter cylinder, so that the purpose of extrusion cannot be effectively realized, the dehydration effect is not ideal enough, and the dehydration rate is low. Therefore, CN211683628U discloses "a kitchen waste screw extrusion dehydrator", which adopts reducing screw extrusion dehydration, and can adjust the extrusion force according to the difference of the water content of the kitchen waste dehydration, but the back pressure of the pressing cone is realized only by the elastic force of the spring, which can cause elastic failure in long-term operation, and further reduce the treatment efficiency of the equipment. In the existing solid-liquid separation treatment system, the feed hopper only plays a role in feeding, so that the food waste cannot be pretreated, the loss of organic matters is large, and the recovery rate of grease is low.
Disclosure of Invention
The invention aims to provide an organic garbage treatment system which is compact in structure, can reduce organic matter loss, improve the grease content in free water, is stable in discharge dryness, can improve solid-liquid separation efficiency and is convenient to maintain and overhaul.
The technical scheme for achieving the aim of the invention is as follows: an organic waste disposal system, characterized in that: comprises a frame, a feeding tank, an extrusion dehydration device and a solid phase spiral conveying device;
in the frame structure of the rack, a tank body of a charging tank is vertically arranged on an upper support of the rack, a plurality of supporting seats and steam heating coils at the lower parts of the supporting seats are uniformly distributed on the periphery of the tank body, a hot water port and a feeding port are arranged at the upper part of the tank body, a stirring motor is arranged on a top cover of the tank body and connected with a stirring shaft arranged in the tank body, the stirring shaft is provided with a plurality of stirring teeth which are arranged in a staggered manner, a weighing sensor for measuring the weight of materials is arranged between each supporting seat and the rack, a discharging port at the bottom of the tank body is communicated with a feeding box of an extrusion dehydration device, and an electric valve is arranged at the discharging port of the tank body;
the extrusion dehydration device is transversely arranged on the base and positioned at the lower part of the charging bucket, the extrusion dehydration device comprises a filter cylinder, a main shaft, a squeezing motor and a solid slag discharging mechanism, the filter cylinder, the main shaft, the squeezing motor and the solid slag discharging mechanism are arranged on the base, the squeezing motor is used for driving the main shaft to rotate, the squeezing motor is connected with one end of the main shaft through an output shaft of a speed reducer, the output shaft of the speed reducer is arranged on a front bearing seat through a bearing, the main shaft extends out of the filter cylinder and is arranged on a rear bearing seat through the bearing, and spiral blades arranged in the filter cylinder are spirally arranged along the axial direction of the main shaft; the filter cartridge comprises a feeding box at the front upper part and a plurality of semicircular filter screen units, the feeding box is assembled with the plurality of filter screen units to form a closed cavity, a slag outlet is formed at the rear end of the filter cartridge, each filter screen unit comprises a semicircular filter screen frame and a filter screen which is arranged in the filter screen frame and can be replaced, and a liquid phase receiving trough and a solid phase receiving trough are connected to a base and are respectively positioned at the bottom of the filter cartridge and the bottom of the slag outlet of the filter cartridge;
the solid slag discharging mechanism comprises an air spring support, a pressing cone, an air bag, a plurality of sliding rods and springs, wherein the pressing cone is sleeved on the main shaft and can axially move, the air bag is used for driving the pressing cone to axially move, a front plate of the air spring support is connected with a rear bearing seat, the front ends of the uniformly distributed sliding rods are connected with the pressing cone, the rear ends of the uniformly distributed sliding rods penetrate through the front plate of the air spring support and are connected with a push plate, the springs sleeved on the sliding rods are propped against the front plate and the push plate, the air bag is connected to the rear plate of the air spring support and the push plate, and when the air bag is not compressed, the conical surface of the pressing cone is blocked at a slag outlet of the filter cylinder;
the solid phase screw conveyer is positioned at the bottom of the extrusion dehydration device, and the outlet of the solid phase receiving groove is communicated with the slag inlet at one side of the solid phase screw conveyer.
In the organic waste treatment system, organic waste added into the tank body can be heated and mixed firstly in the feeding process, so that a large amount of solid organic matters can be converted into a liquid phase, the oil content in free water is increased, and the loss of the organic matters is reduced. The invention can quantitatively feed according to the processing capacity and keep the optimal processing state of the system by measuring the weight of the organic garbage added into the tank body by the weighing sensor. The extrusion dehydration device adopts the filter cylinder formed by assembling the feeding box and the plurality of filter screen units and the solid slag discharge mechanism blocked at the slag outlet of the filter cylinder, so that the filter cylinder is a totally closed area and the filtrate is convenient to discharge. The filter screen unit comprises the semicircular filter screen frame and the filter screen which is arranged in the filter screen frame and can be replaced, the filter cartridge can bear a large squeezing force to carry out solid-liquid separation, the filter cartridge adopts an assembly structure, a main shaft does not need to be disassembled when the filter screen unit is replaced, the easy-damage filter screen is conveniently replaced at regular intervals, and the draining performance of the filter screen is ensured. The slag outlet of the filter cylinder is propped by the pressing cone, the back pressure of the pressing cone is adjusted by adjusting the pressure of the air bag, and the air bag has a good self-adjusting function, so that the pressure required by dehydration can be automatically adjusted according to organic garbage with different components, the organic garbage is fully extruded, the dryness of discharged materials is ensured, the dehydration rate can be improved, and meanwhile, even if the concentration of raw materials is low, the organic garbage can be treated, and the treatment capability and the squeezing dryness are not influenced by each other. When the organic garbage is treated, the liquid-phase grease part of the organic garbage can be separated from the organic garbage, and meanwhile, the organic garbage is dewatered and deoiled, so that the process route is short, and the recycling of resources and the storage and transportation of the garbage are facilitated.
Drawings
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of an organic waste treatment system according to the present invention.
Fig. 2 is a schematic perspective view of the organic waste disposal system with the cover removed.
FIG. 3 is a schematic diagram of the organic waste disposal system removing cover.
Fig. 4 is a schematic top view of the structure of fig. 3.
Fig. 5 is a schematic sectional structure view a-a of fig. 4.
Wherein: 1-frame, 1-upper support, 2-housing, 2-1-access window, 3-charging bucket, 3-1-tank, 3-2-steam heating coil, 3-support seat, 3-4-exhaust port, 3-5-hot water port, 3-6-feeding port, 3-7-stirring motor, 3-8-weighing sensor, 3-9-stirring shaft, 3-10-stirring tooth, 4-solid phase spiral conveying device, 5-electric valve, 5-1-electric execution part, 5-2-gate valve, 6-squeezing dewatering device, 6-1-squeezing motor, 6-2-speed reducer, 6-3-base, 6-4-front bearing seat, 6-5-liquid phase receiving groove, 6-helical blade, 6-7-filtering bucket, 6-71-slag hole, 6-72-feeding box, 6-73-filter screen frame, 6-74-filter screen, 6-8-solid phase receiving groove, 6-9-main shaft, 6-91-power coupling disk, 6-92-small shaft section, 6-93-conical shaft section, 6-94-large shaft section, 6-95-shaft head, 6-10-slide rod, 6-11-guide sleeve, 6-12-rear bearing seat, 6-13-spring, 6-14-gas spring support, 6-15-push plate, 6-16-air bag and 6-17-press cone.
Detailed Description
As shown in the figures 1-5, the organic garbage treatment system comprises a rack 1, a feeding tank 3, an extrusion dehydration device 6 and a solid-phase spiral conveying device 4.
As shown in the figures 1-5, in the frame structure of the rack 1, one side of the upper part of the rack 1 is provided with an upper bracket 1-1, the housing 2 is arranged on the rack, and the housing 2 is provided with a plurality of access windows 2-1, so that the maintenance operation is convenient. A tank body 3-1 of a charging tank is vertically arranged at the upper side part of a frame 1, a plurality of supporting seats 3-3 and steam heating coils 3-2 at the lower parts of the supporting seats 3-3 are uniformly distributed at the periphery of the tank body 3-1, a hot water port 3-5 and a feed port 3-6 are arranged at the upper part of the tank body 3-1, the hot water port 3-5 and the feed port 3-6 can be arranged on a top cover of the tank body 3-1, the steam heating coils 3-2 are spirally arranged at the outer wall of the tank body 3-1, a steam interface is arranged at the upper end of each steam heating coil 3-2, a condensed water outlet is arranged at the lower end of each steam heating coil 3-2, hot water is injected from each hot water port 3-5 to be mixed with organic garbage, steam is introduced into the steam heating coils 3-2, hot water stirring is firstly carried out on the organic garbage entering a separation treatment system, and grease in the organic garbage is decomposed under a thermal state, the oil content in the free water is improved, and preliminary oil-water separation is performed in advance. The top cover of the tank body 3-1 is also provided with an exhaust port 3-4, and odor in the tank is exhausted to an odor treatment system through the exhaust port 3-4 to be subjected to deodorization treatment.
As shown in the figures 1-5, a stirring motor 3-7 of the invention is arranged on the top cover of a tank body 3-1 and is connected with a stirring shaft 3-9 arranged in the tank body 3-1, the stirring shaft 3-9 is provided with a plurality of stirring teeth 3-10 which are arranged in a staggered way, the stirring motor 3-7 is provided with a speed reducing mechanism, the food waste is fully stirred through the stirring shaft 3-9, solid-phase organic matters in the organic waste are dissolved in a liquid phase during heating, the decomposition of grease in the waste under a thermal state is accelerated, and the loss of the grease and the organic matters is reduced. As shown in figure 5, a plurality of stirring teeth 3-10 are arranged on a stirring shaft 3-9 in an axially staggered manner, the stirring teeth 3-10 are obliquely and downwards arranged on the stirring shaft 3-9, each stirring tooth 3-10 comprises two connecting rods and fins, one end of each connecting rod is connected with the stirring shaft 3-9, the other end of each connecting rod is fixedly provided with an oblique fin, the inclination angle of each fin is matched with the inner wall of the tank body 3-1, and the fins at the bottom are positioned above a discharge port, so that the organic garbage and hot water are fully stirred and mixed, material blockage at the discharge port can be prevented, and subsequent solid-liquid separation is facilitated.
As shown in figure 5, a weighing sensor 3-8 for measuring the weight of materials is arranged between each supporting seat 3-3 and the upper bracket 1-1 of the tank body 3-1, the fixed side of the weighing sensor 3-8 can be connected to the sensor seat of the upper bracket 1-1, the strain side of the weighing sensor 3-8 is connected with the supporting seat, the organic garbage added into the tank is measured, quantitative feeding can be realized according to the processing capacity of equipment, and the organic garbage processing system can keep the optimal working state.
As shown in the figures 2-5, a discharge port of a tank body 3-1 is communicated with a feed box 6-72 of an extrusion dehydration device 6, an electric valve 5 is arranged at the discharge port of the tank body 3-1, the electric valve 5 comprises an electric execution part 5-1 and a gate valve 5-2, the electric valve 5 is closed, the gate valve 5-2 blocks the discharge port of the tank body 3-1, the materials added into the tank body 3-1 are mixed and heated, after the set requirements are met, the electric valve 5 is opened, and slurry in the tank is discharged into the extrusion dehydration device 6 for solid-liquid separation.
As shown in figures 1-5, an extrusion dehydration device 6 of the invention is transversely arranged on a base 6-3 and positioned at the lower part of a charging bucket 3, the extrusion dehydration device 6 comprises a filter cylinder 6-7 arranged on the base 6-3, a main shaft 6-9, a squeezing motor 6-1 for driving the main shaft 6-9 to rotate and a solid slag discharging mechanism, the squeezing motor 6-1 is connected with one end of the main shaft 6-9 through an output shaft of a speed reducer 6-2, the output shaft of the speed reducer 6-2 is arranged on a front bearing seat 6-4 through a bearing, the main shaft 6-9 extends out of the filter cylinder 6-7 and is arranged on a rear bearing seat 6-12 through a bearing, a helical blade 6-6 arranged in the filter cylinder 6-7 is spirally arranged along the axial direction of the main shaft 6-9, the power of the squeezing motor 6-1 is reduced by the speed reducer 6-2, the main shaft 6-9 is driven to rotate, so that the helical blades 6-6 convey the kitchen waste to a slag outlet 6-71 of the filter cylinder 6-7, and the organic waste is extruded under the action of the solid slag discharging mechanism to be dehydrated.
As shown in the figures 2 and 5, the main shaft 6-9 of the invention comprises a hollow shaft, a power connecting disc 6-91 fixed at the front end of the hollow shaft and a rear shaft head 6-95, the hollow shaft comprises a front small shaft section 6-92, a rear large shaft section 6-94 and a small conical shaft section 6-93 between the front and rear large shaft sections, the small shaft section 6-92 is opposite to a feeding box 6-72, a bearing plate is fixed on the small shaft section 6-92, and the front end of a helical blade 6-6 fixed on the hollow shaft is connected with the bearing plate, so that the working reliability of the helical blade 6-6 is improved, and when materials are conveyed, primary extrusion dehydration is firstly carried out. The tooth space of the helical blades 6-6 is between 450 and 500mm, the diameter of the helical blades 6-6 is between 600 and 700mm, the length of the feeding box 6-72 is at least two tooth lengths of the helical blades 6-6 on the small shaft section 6-92, so that an oversized feeding funnel can be formed, the phenomena of material blockage and bridging are prevented, the outer diameter of the small shaft section 6-92 is between 220 and 20mm, the outer diameter of the large shaft section 6-94 is between 290 and 20mm, the length of the small shaft section 6-92 is basically the same as that of the large shaft section 6-94, and the oversized helical pitch tooth space and height can treat a larger amount of organic garbage. As shown in the figures 2 and 5, the shaft heads 6-95 of the invention are fixed on the large shaft sections 6-94 through seal plates and extend out of the large shaft sections 6-94, a plurality of rib plates are connected between the shaft heads 6-95 and the large shaft sections 6-94, on one hand, the main shaft 6-9 has better strength, on the other hand, the small conical shaft sections 6-93 are used for extruding in the conveying process, the power connecting disc 6-91 is connected with an end face connecting disc on an output shaft of the speed reducer 6-2 through a fastener, the shaft heads 6-95 are arranged on the rear bearing seats 6-12 through bearings, the front bearing seats 6-4 and the rear bearing seats 6-12 of the invention are arranged on the base 6-3, and the base 6-3 is arranged on the frame 1, thereby facilitating the field installation and maintenance.
As shown in the figures 2-5, the filter cartridge 6-7 comprises a feeding box 6-72 at the front upper part and a plurality of semicircular filter screen units, the feeding box 6-72 is assembled with the plurality of filter screen units to form a closed cavity, the rear end of the filter cartridge 6-7 is provided with a slag outlet 6-71, and cavities are formed between the feeding box 6-72 and the lower filter screen units and between every two filter screen units which are buckled and connected. The filter screen unit comprises the semicircular filter screen frame 6-73 and the replaceable filter screen 6-74 arranged in the filter screen frame 6-73, and the filter screen 6-74 is supported by the filter screen frame 6-73, so that the squeezing force of the filter cartridge 6-7 can be improved, the fragile filter screen 6-74 can be conveniently replaced at regular intervals, and the draining performance of the filter screen unit is kept. As shown in the figures 2-5, a liquid phase receiving groove 6-5 and a solid phase receiving groove 6-8 are further connected to a base 6-3 of the filter cartridge, and are respectively positioned at the bottom of a filter cartridge 6-7 and the bottom of a slag outlet 6-71 of the filter cartridge 6-7, the liquid phase receiving groove 6-5 and the solid phase receiving groove 6-8 are funnel-shaped, an outlet is formed in the bottom of the liquid phase receiving groove 6-5, extruded filtrate freely falls into the liquid phase receiving groove 6-5 in the lower portion through a filter hole of the filter cartridge 6-7 and is sent into a subsequent anaerobic treatment system, and solid phase garbage remained in the filter cartridge 6-7 after extrusion falls into the solid phase receiving groove 6-8 through the slag outlet 6-71 of the filter cartridge 6-7 and is discharged through a solid phase spiral conveying device 4.
As shown in figures 2-5, the invention further improves the squeezing force and further reduces the maintenance cost, the filter screen 6-74 comprises a middle supporting screen plate with mesh holes and an inner screen plate with mesh holes, the aperture of the mesh holes uniformly distributed on the middle supporting screen plate is larger than that of the mesh holes of the inner screen plate, the inner screen plate is fixed on the middle supporting screen by spot welding and can be welded along the periphery, the filter screen 6-74 is arranged in the mounting groove of the filter screen frame 6-73, so that the filter screen 6-74 can not axially move in the filter screen frame 6-73, a torsion stop sheet for preventing the rotation of the filter screen 6-74 is arranged between the flange at the bottom of the feeding box and the plane flange of the filter screen frame 6-73 and between the plane flanges of the two filter screen frames 6-73, the torsion stop sheet is connected with the end surface of the filter screen 6-74 to prevent the rotation of the filter screen 6-74, thereby realizing the quick replacement of the filter screen 6-74, the maintenance time is shortened to the minimum, meanwhile, through the connecting structure of the middle supporting screen plate and the inner screen plate, the filter screens 6-74 can bear larger squeezing force, and the rotation of the main shafts 6-9 generates internal high-pressure squeezing force in the dehydration process, so that the inner screen plate with low cost can be adopted for better operation, the supporting screen plate is firm and durable, and the maintenance cost is reduced.
As shown in the figures 2-5, the filter screen frame 6-73 of the invention is provided with a plane flange and an edge flange turned outwards, the edge flanges of the adjacent filter screen frames 6-73 are connected by a fastener, the lower edge flange of the front filter screen frame 6-73 and the lower edge flange of the rear filter screen frame 6-73 are installed on the base 6-3 by the fastener, the plane flanges of the filter screen frames 6-73 which are buckled up and down are connected by the fastener, the flange at the bottom of the feeding box 6-72 is connected with the plane flange on the corresponding filter screen frame 6-73, when the filter screen 6-74 is replaced, only the fastener is needed to be disassembled, the upper filter screen frame 6-73 and the feeding box 6-72 are disassembled, the filter screen 6-74 can be replaced without disassembling the main shaft 6-9, and the disassembly and assembly are very convenient.
As shown in the figures 2-5, the solid slag discharging mechanism comprises gas spring supports 6-14, a pressing cone 6-17 which is sleeved on a main shaft 6-9 and can axially move, an air bag 6-16 for driving the pressing cone 6-17 to axially move, a plurality of sliding rods 6-10 and springs 6-13, wherein the plurality of sliding rods 6-10 are uniformly distributed along the central axis of the main shaft 6-9, 3-4 sliding rods can be arranged, the pressure of the air bag 6-16 acts on the pressing cone 6-17 through the sliding rods 6-10, and the elasticity of the springs 6-13 can also act on the pressing cone 6-17 through the sliding rods 6-10, so that the solid slag discharging mechanism has large squeezing force. The invention is characterized in that the air spring support 6-14 is U-shaped, the air spring support 6-14 is arranged on a base 6-3, the front plate of the air spring support 6-14 is connected with a rear bearing seat 6-12, the rear bearing seat 6-12 is arranged on the front plate through a fastener, the front end of each sliding rod 6-10 is connected with a press cone 6-17, the rear end of each sliding rod 6-10 passes through the front plate on the air spring support 6-14 and is connected with a push plate 6-15, a spring 6-13 sleeved on each sliding rod 6-10 is propped against the front plate and the push plate 6-15, an air bag 6-16 is connected on the rear plate of the air spring support 6-14 and the push plate 6-15, so that the push plate 6-15 drives the sliding rod 6-10 to move, the air bag 6-16 adopts a corrugated air bag 6-16, when the air bag 6-16 is not compressed, the conical surface of the pressure cone 6-17 is blocked at the slag outlet 6-71 of the filter cylinder 6-7, the materials are continuously conveyed to the slag outlet 6-71 through the helical blades 6-6, a closed pressure space is formed by the pressure cone 6-17 which is axially blocked, further, a squeezing force is formed, the pressure cone 6-17 is blocked to generate a back pressure, the back pressure is automatically adjusted through the pressure of the air bag 6-16, meanwhile, the pressure cone 6-17 can also provide a set pressure through the spring 6-13, the constancy of the dryness of the discharged materials can be ensured after materials with different components are squeezed, meanwhile, after the materials are discharged, the pressure cone 6-17 can rapidly block the slag outlet 6-71, few materials are added into the filter cylinder 6-7, the squeezing treatment can be carried out, and the treatment capacity and the squeezing dryness are not influenced by each other. The wear-resistant sleeve fixed by the pressure cone 6-17 is matched with the main shaft, the main shaft 6-9 is also provided with a wear-resistant layer at the discharging side, and the helical blade 6-6 is welded with the wear-resistant layer.
As shown in figures 2-5, the threads on the front side of a sliding rod 6-10 are screwed on a press cone 6-17, the rear side of the sliding rod 6-10 is provided with a shaft shoulder and a clamping groove, a corresponding mounting hole is formed in a push plate 6-15, the mounting hole of the push plate 6-15 is sleeved on the sliding rod 6-10 and limited by the shaft shoulder of the sliding rod 6-10, a clamp spring is arranged in the clamping groove to connect the push plate 6-15 with the sliding rod 6-10, and the sliding rod 6-10 is conveniently mounted on the push plate 6-15 and the press cone 6-17. As shown in the figures 2-5, a guide sleeve 6-11 corresponding to a push rod is arranged on a front plate of a gas spring support 6-14, the guide sleeve 6-11 extends forwards and backwards along the front plate, the push rod is arranged in the guide sleeve 6-11, and two ends of a spring 6-13 are respectively propped against the guide sleeve 6-11 and a push plate 6-15, so that a slide rod 6-10 moves stably, and a press cone 6-17 is quickly blocked at a slag outlet 6-71 of a filter cylinder 6-7.
As shown in the figures 1-5, the solid phase screw conveying device 4 is positioned at the bottom of the extrusion dehydration device 6, the outlet of the solid phase material receiving groove 6-8 is communicated with the slag inlet at one side of the solid phase screw conveying device 4, and solid slag is discharged outside through the solid phase screw conveying device 4. The solid phase spiral conveying device 4 can be obliquely arranged and is provided with an upward inclined shell, a slag inlet at the lower side of the shell is communicated with an outlet of a solid phase receiving groove 6-8, and a water outlet is formed in the bottom of the shell; the upper part of the shell is provided with a discharge outlet, the conveying motor is arranged at the upper end of the shell and is connected with the shaftless helical blades 6-6, one end of the shell close to the conveying motor is provided with an observation port, observation is convenient, and a small amount of discharged filtrate can be conveyed to a rear-end anaerobic fermentation system in the conveying process.
As shown in figures 2-5, in the work of the invention, firstly, an electric valve 5 is closed, organic garbage is sent into an inlet tank, hot water is injected into a tank body 3-1 through a hot water port 3-5, steam is introduced into a steam heating coil 3-2 to heat and preserve heat of the tank body 3-1, a stirring motor 3-7 is started to control a stirring shaft 3-9 to drive a stirring tooth to rotate to stir the organic garbage, the organic garbage in the tank body 3-1 is fully mixed with the hot water, a weighing sensor 3-8 weighs the organic garbage added into the tank, after the food garbage and the water are fully heated and mixed, the electric valve 5 is opened, the slurry is dropped into a filter cylinder 6-7 through a feeding box 6-72 of an extrusion dehydration device 6 through a discharging port by the organic garbage, a squeezing motor 6-1 is started and drives a main shaft 6-9 to rotate after speed reduction, organic garbage is continuously pushed to the slag hole 6-71 through the spiral blade 6-6, the slag hole 6-71 is blocked by the pressure cone 6-17 to generate back pressure, in the dehydration process, the rotation of the main shaft 6-9 generates internal squeezing force, in the environment of high internal pressure, free water is extruded through the filter screen 6-74 on the periphery of the main shaft 6-9 and enters the liquid phase connecting material groove 6-5 through the meshes of the filter screen 6-74, and the free water is sent to an anaerobic fermentation system for treatment. When the pressure for squeezing the organic garbage exceeds the back pressure of the pressure cone 6-17, the pressure cone 6-17 is pushed away and compresses the air bag 6-16 and the spring, the dry material is discharged from the outlet and falls into the solid-solid phase spiral conveying device 4 at the lower part to be discharged, once the pressure applied on the air bag 6-16 disappears, the air bag 6-16 is restored to the original state, the pressure cone 6-17 is pushed to block the slag outlet 6-71 of the filter cylinder 6-7, and solid-liquid separation is realized.
Claims (10)
1. An organic waste disposal system, characterized in that: comprises a frame, a feeding tank, an extrusion dehydration device and a solid phase spiral conveying device;
in the frame structure of the rack, a tank body of a charging tank is vertically arranged on an upper support of the rack, a plurality of supporting seats and steam heating coils at the lower parts of the supporting seats are uniformly distributed on the periphery of the tank body, a hot water port and a feeding port are arranged at the upper part of the tank body, a stirring motor is arranged on a top cover of the tank body and connected with a stirring shaft arranged in the tank body, the stirring shaft is provided with a plurality of stirring teeth which are arranged in a staggered manner, a weighing sensor for measuring the weight of materials is arranged between each supporting seat and the rack, a discharging port at the bottom of the tank body is communicated with a feeding box of an extrusion dehydration device, and an electric valve is arranged at the discharging port of the tank body;
the extrusion dehydration device is transversely arranged on the base and positioned at the lower part of the charging bucket, the extrusion dehydration device comprises a filter cylinder, a main shaft, a squeezing motor and a solid slag discharging mechanism, the filter cylinder, the main shaft, the squeezing motor and the solid slag discharging mechanism are arranged on the base, the squeezing motor is used for driving the main shaft to rotate, the squeezing motor is connected with one end of the main shaft through an output shaft of a speed reducer, the output shaft of the speed reducer is arranged on a front bearing seat through a bearing, the main shaft extends out of the filter cylinder and is arranged on a rear bearing seat through the bearing, and spiral blades arranged in the filter cylinder are spirally arranged along the axial direction of the main shaft; the filter cartridge comprises a feeding box at the front upper part and a plurality of semicircular filter screen units, the feeding box is assembled with the plurality of filter screen units to form a closed cavity, a slag outlet is formed at the rear end of the filter cartridge, each filter screen unit comprises a semicircular filter screen frame and a filter screen which is arranged in the filter screen frame and can be replaced, and a liquid phase receiving trough and a solid phase receiving trough are connected to a base and are respectively positioned at the bottom of the filter cartridge and the bottom of the slag outlet of the filter cartridge;
the solid slag discharging mechanism comprises an air spring support, a pressing cone, an air bag, a plurality of sliding rods and springs, wherein the pressing cone is sleeved on the main shaft and can axially move, the air bag is used for driving the pressing cone to axially move, a front plate of the air spring support is connected with a rear bearing seat, the front ends of the uniformly distributed sliding rods are connected with the pressing cone, the rear ends of the uniformly distributed sliding rods penetrate through the front plate of the air spring support and are connected with a push plate, the springs sleeved on the sliding rods are propped against the front plate and the push plate, the air bag is connected to the rear plate of the air spring support and the push plate, and when the air bag is not compressed, the conical surface of the pressing cone is blocked at a slag outlet of the filter cylinder;
the solid phase screw conveyer is positioned at the bottom of the extrusion dehydration device, and the outlet of the solid phase receiving groove is communicated with the slag inlet at one side of the solid phase screw conveyer.
2. An organic waste disposal system according to claim 1, wherein: the main shaft comprises a hollow shaft, a power connecting disc and a shaft head, the power connecting disc is fixed at the front end of the hollow shaft, the shaft head is fixed at the rear end of the hollow shaft, the hollow shaft comprises a small shaft section at the front portion, a large shaft section at the rear portion and a conical shaft section between the small shaft section and the large shaft section, the small shaft section is opposite to the feeding box, a supporting plate is fixed on the small shaft section, the front end of a helical blade fixed on the hollow shaft is connected with the supporting plate, the shaft head is fixed on the large shaft section through a sealing plate and extends out of the large shaft section, a plurality of rib plates are connected between the shaft head and the large shaft section, the power connecting disc is connected with an end face connecting disc on an output shaft of the speed reducer through a fastener, and the shaft head is installed on a rear bearing seat through a bearing.
3. An organic waste disposal system according to claim 1, wherein: the tooth space of the helical blade is between 450 and 500mm, and the diameter of the helical blade is between 600 and 700 mm.
4. An organic waste disposal system according to claim 1, wherein: the filter screen frame is provided with a plane flange and edge flanges with two ends turned outwards, the edge flanges of adjacent filter screen frames are connected by fasteners, the lower edge flange of the front-end filter screen frame and the lower edge flange of the rear-end filter screen frame are installed on the base through the fasteners, the plane flanges of the upper and lower buckled filter screen frames are connected through the fasteners, and the flange at the bottom of the feeding box is connected with the plane flange on the corresponding filter screen frame.
5. An organic waste disposal system according to claim 1, wherein: the filter screen including the intermediate strut otter board that has the mesh and the interior otter board that has the mesh, interior otter board spot welding fix on the intermediate strut net, the filter screen setting in filter screen frame's mounting groove, and install between the flange of feeding bottom of the case portion and the planar flange on the filter screen frame and two liang of looks lock filter screen frame's planar flange and prevent that the filter screen from pivoted to twist reverse the locking piece.
6. An organic waste disposal system according to claim 1, wherein: the screw thread of slide bar front side connects soon on pressing the awl, and the rear side of slide bar is equipped with shaft shoulder and draw-in groove, is equipped with the mounting hole that corresponds on the push pedal, and the mounting hole suit of push pedal is spacing on the slide bar and by the shaft shoulder of slide bar, and the jump ring is installed and is connected push pedal and slide bar in the draw-in groove.
7. An organic waste disposal system according to claim 1, wherein: the rear bearing seat is installed on a front plate of the gas spring support through a fastener, a guide sleeve corresponding to the push rod is installed on the front plate, the guide sleeve extends forwards and backwards along the front plate, the push rod is arranged in the guide sleeve, and two ends of the spring respectively abut against the guide sleeve and the push plate.
8. An organic waste disposal system according to claim 1, wherein: the pressure cone is fixed with a wear-resistant sleeve to be matched with the main shaft, the main shaft is provided with a wear-resistant layer on one side of the discharging side, and the spiral blades are welded with the wear-resistant layer.
9. An organic waste disposal system according to claim 1, wherein: the stirring teeth are obliquely and downwards arranged on the stirring shaft and comprise two connecting rods and fins, one ends of the two connecting rods are connected with the stirring shaft, the other ends of the two connecting rods are fixedly provided with oblique fins, the inclination angles of the fins are matched with the inner wall of the tank body, and the fins at the bottom are positioned above the discharge port.
10. An organic waste disposal system according to claim 1, wherein: the solid phase spiral conveying device is provided with an upward inclined shell, a slag inlet at the lower side of the shell is communicated with an outlet of the solid phase receiving groove, and a water outlet is formed in the bottom of the shell; the upper part of the shell is provided with a discharge outlet, and the conveying motor is arranged at the upper end of the shell and connected with the shaftless helical blade.
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| CN202110613710.1A CN113334825B (en) | 2021-06-02 | 2021-06-02 | Organic garbage treatment system |
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| CN202110613710.1A CN113334825B (en) | 2021-06-02 | 2021-06-02 | Organic garbage treatment system |
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| CN113334825B CN113334825B (en) | 2022-08-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117298976A (en) * | 2023-09-26 | 2023-12-29 | 茵塞普科技(深圳)有限公司 | Automatic preparation method and device for primary foodstuff of insect bioconversion |
| CN117885392A (en) * | 2024-03-18 | 2024-04-16 | 潍坊川泰机械有限公司 | Screw squeezer |
| CN117298976B (en) * | 2023-09-26 | 2024-05-31 | 茵塞普科技(深圳)有限公司 | Automatic preparation method and device for primary foodstuff of insect bioconversion |
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| CN117885392A (en) * | 2024-03-18 | 2024-04-16 | 潍坊川泰机械有限公司 | Screw squeezer |
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| CN113334825B (en) | 2022-08-19 |
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