CN116651887A

CN116651887A - Kitchen waste pretreatment device and method

Info

Publication number: CN116651887A
Application number: CN202310952126.8A
Authority: CN
Inventors: 张静风
Original assignee: Gree Environmental Protection Technology Shenzhen Co ltd
Current assignee: Gree Environmental Protection Technology Shenzhen Co ltd
Priority date: 2023-08-01
Filing date: 2023-08-01
Publication date: 2023-08-29
Anticipated expiration: 2043-08-01
Also published as: CN116651887B

Abstract

The application relates to the technical field of kitchen waste treatment, in particular to a kitchen waste pretreatment device and a kitchen waste pretreatment method, wherein the kitchen waste pretreatment device comprises a treatment box and a treatment mechanism, a first discharge hole and a liquid outlet are formed in the treatment box, the treatment mechanism comprises a first rotary table, a second rotary table, a first elastic piece and a second elastic piece, when the kitchen waste pretreatment device is used, kitchen waste is put into the treatment box and moves in the treatment box, the first rotary table and the second rotary table synchronously rotate, bags and tissues in the kitchen waste are screened out by the periodic deformation of the first elastic piece under the rotation action of a second connecting disc and a fourth connecting disc, the bags and tissues in the kitchen waste are thrown out from the first discharge hole, part of the kitchen waste is clamped by the periodic deformation of the second elastic piece, liquid is extruded out from the liquid outlet; the kitchen waste pretreatment method comprises the steps of removing bags and tissues contained in kitchen waste by adopting a kitchen waste pretreatment device, extruding a large amount of liquid in the waste, and facilitating subsequent treatment of water, grease and solids.

Description

Kitchen waste pretreatment device and method

Technical Field

The application relates to the technical field of kitchen waste treatment, in particular to a kitchen waste pretreatment device and a kitchen waste pretreatment method.

Background

Kitchen waste, commonly known as swill, is domestic waste formed by residents in the process of life consumption. The kitchen waste has a content of perishable organic matters of 40-50%, mainly comprises kitchen waste, food industry tailings and the like, mainly comprises starch, food fiber, animal fat and the like, and has the characteristics of high water content, high grease content, high salt content, easy decay, fermentation, odor and the like. Meanwhile, due to the fact that a large amount of packaging materials such as plastic bags and tissues are used and discarded at will, substances which are easy to wind and difficult to uniformly disperse often mix in kitchen waste affect later treatment.

The Chinese patent of publication No. CN112207113B discloses a multi-effect combined kitchen waste treatment device, which comprises a machine body, wherein a feed inlet is arranged on the machine body, a stirring mechanism for stirring kitchen waste is arranged below the feed inlet, a water draining component for draining water in the kitchen waste is arranged below the stirring mechanism, the water draining component comprises a sieve plate, a first magnet, a second magnet and a first stepping motor, the sieve plate is rotatably arranged in the machine body, the first magnet is fixedly arranged on the sieve plate, a plurality of second magnets matched with the first magnet are circumferentially arranged in the machine body, a sliding groove is formed in the sieve plate, a sliding block is slidably arranged in the sliding groove, two sides of the sliding block are elastically connected with the sliding groove, and the sliding block is fixedly arranged with the first stepping motor; the multi-effect combined kitchen waste treatment device is convenient for the later work of converting kitchen waste into usable fertilizer by a series of works such as crushing, dewatering, removing bags and drying the kitchen waste.

In the practical use process, the plastic bags and the paper towels doped in the kitchen waste are difficult to remove, so that the water and the grease contained in the plastic bags and the paper towels cannot be discharged, the load of a sewage treatment system is increased, the service life of membrane equipment is shortened, the solid content obtained by solid-liquid separation of simple materials is high, a large amount of combustion heat is consumed by water evaporation after entering an incineration system, and the economical efficiency is low.

Disclosure of Invention

Based on the problems, the existing kitchen waste treatment device is required to solve the problems that plastic bags and paper towels which are doped in kitchen waste cannot be removed, so that water and grease contained in the plastic bags and paper towels cannot be discharged, the load of a sewage treatment system is increased, membrane equipment is shortened, solid matters obtained through simple solid-liquid separation of materials are high in water content, a large amount of combustion heat is consumed through water evaporation after entering an incineration system, and economy is low.

The above purpose is achieved by the following technical scheme:

a kitchen waste pretreatment device, the kitchen waste pretreatment device comprising:

the treatment box is characterized in that a feed inlet is formed in the top of the treatment box, a first discharge outlet is formed in one side wall of the treatment box extending along the length direction, a liquid outlet is formed in the bottom of the treatment box, and the liquid outlet and the feed inlet are respectively located at two ends of the treatment box in the length direction;

the processing mechanism comprises a first rotary table, a second rotary table, a first elastic piece and a second elastic piece, wherein the first rotary table and the second rotary table are oppositely arranged on the inner side wall surface of the processing box, the axes of the first rotary table and the second rotary table are coincident, and a first connecting disc and a third connecting disc are arranged on the first rotary table along the circumferential direction; the second turntable is rotatably provided with a second connecting disc and a fourth connecting disc along the circumferential direction, and the first turntable and the second turntable are coaxially arranged and can synchronously rotate; the number of the first elastic pieces is two, one ends of the two first elastic pieces are arranged on the first connecting disc, the other ends of the two first elastic pieces are arranged on the second connecting disc, the two first elastic pieces are arranged at intervals along the circumferential direction of the first connecting disc, and the two first elastic pieces are periodically crossed and twisted to deform under the rotation action of the second connecting disc so as to take out bags and tissue clips in kitchen waste and throw the bags and tissue clips out of the first discharge hole; the quantity of second elastic pieces is N, and N is the natural number of being greater than or equal to 3, and N the one end of second elastic pieces all sets up on the third connection pad, and the other end all sets up on the fourth connection pad, and N the second elastic pieces is followed the circumferencial direction interval setting of third connection pad, and N the second elastic pieces is in the periodic alternately torsional deformation under the rotation effect of fourth connection pad, in order to with some kitchen garbage presss from both sides and extrudes out liquid, liquid follow the liquid outlet discharge.

Further, the two first elastic pieces are arranged symmetrically with respect to the center of the circle of the first turntable.

Further, the processing mechanism further comprises a gear disc, the gear disc is arranged on the inner side wall surface of the processing box, the gear disc and the second rotary disc are coaxially arranged, a first incomplete tooth and a second incomplete tooth are arranged on the gear disc, and the first incomplete tooth and the second incomplete tooth are coaxially arranged with the gear disc; a first coaxial gear is arranged on one side, close to the gear disc, of the second connecting disc, and the first gear is meshed with the first incomplete teeth; and a coaxial second gear is arranged on one side, close to the gear disc, of the fourth connecting disc, and the second gear is meshed with the second incomplete gear.

Further, the diameter of the first turntable is larger than the diameter of the second turntable.

Further, the first turntable is connected with the second turntable through a rotating rod, a liquid bearing plate is rotatably sleeved on the rotating rod, a liquid bearing groove is arranged on the liquid bearing plate, and the liquid bearing groove is used for guiding part of liquid to the liquid outlet.

Further, one end of the treatment box, which is close to the feed inlet, is higher than the other end in the vertical direction.

Further, the included angle between the bottom surface of the treatment box and the side wall surface where the first discharge port is located is an obtuse angle.

Further, the number of the first connecting disc, the second connecting disc, the third connecting disc and the fourth connecting disc is multiple, and the multiple first connecting discs and the multiple third connecting discs are alternately and uniformly arranged on the first rotating disc along the circumferential direction of the first rotating disc; the plurality of second lands and the plurality of second lands are alternately and uniformly disposed on the second turntable in a circumferential direction of the second turntable.

Further, the kitchen waste pretreatment device further comprises a driving piece, wherein the driving piece is used for providing driving force for rotation of the first rotating disc.

The application also provides a kitchen waste pretreatment method which is applied to any kitchen waste pretreatment device, and the kitchen waste pretreatment method comprises the following steps:

step S1, preparing operation: collecting kitchen waste and performing coarse crushing;

step S2, separation treatment: pouring the kitchen waste after coarse crushing into a treatment box, separating bags doped in the kitchen waste and kitchen tissue waste through a treatment mechanism, and extruding the kitchen waste;

step S3, classification processing: delivering the separated garbage which does not contain bags and is difficult to degrade paper towels to a pulping machine for crushing and pulping; introducing the liquid extruded from the kitchen waste into a two-phase centrifuge to separate water and grease;

step S4, screening and sand removal treatment: putting the crushed slurry into a solid-liquid separator for screening, and pouring the screened slurry into a sand removing device for sand removal;

step S5, three-phase separation processing: heating the sand-removed slurry to 90 ℃, and separating water, solids and grease by a three-phase centrifuge;

step S6, recycling: preparing the grease separated by the two-phase centrifuge and the three-phase centrifuge into biodiesel, soap or other chemical raw materials; and (3) conveying the water separated by the two-phase centrifugal machine and the water and solids separated by the three-phase centrifugal machine to a next process for anaerobic fermentation.

The beneficial effects of the application are as follows:

the application relates to a kitchen waste pretreatment device and a kitchen waste pretreatment method, wherein the kitchen waste pretreatment device comprises a treatment box and a treatment mechanism, the treatment box is provided with a feed inlet, a first discharge outlet, a second discharge outlet and a liquid outlet, the treatment mechanism comprises a first rotary table, a second rotary table, a first elastic piece and a second elastic piece, and when the kitchen waste pretreatment device is used, kitchen waste is put into the treatment box from the feed inlet, slides downwards along the length direction of the treatment box and is discharged from the second discharge outlet; in the moving process of the kitchen waste, the first rotary table and the second rotary table synchronously rotate, the bag and the paper towel in the kitchen waste are screened out by the periodic deformation of the first elastic piece under the rotating action of the second connecting disc and the fourth connecting disc and are thrown out from the first discharge port, part of the kitchen waste is clamped and extruded out of liquid by the periodic deformation of the second elastic piece, and the liquid is discharged from the liquid outlet; the kitchen waste pretreatment method comprises the steps of adopting a kitchen waste pretreatment device to remove bags and tissues contained in kitchen waste and extrude a large amount of liquid in the kitchen waste, so that the subsequent treatment of water, grease and solids is facilitated.

Further, through setting up the centre of a circle central symmetry setting of two first elastic components about first carousel for at the synchronous pivoted in-process of first carousel and second carousel, two first elastic components can press from both sides the bag class and the paper handkerchief in the kitchen garbage with the biggest screening scope and take out, thereby improve the rejection efficiency of bag class and the paper handkerchief in the kitchen garbage, be convenient for follow-up kitchen garbage treatment process go on.

Further, the diameter of the first turntable is larger than that of the second turntable, so that the kitchen waste can be treated in an omnibearing manner by the first elastic piece and the second elastic piece in the synchronous rotation process of the first turntable and the second turntable, the removing efficiency of bags and tissues in the kitchen waste is improved, and the follow-up kitchen waste treatment process is facilitated.

Further, through cup jointing the liquid bearing plate on the dwang for at first carousel and the synchronous pivoted in-process of second carousel, the periodic deformation of second elastic component is pressed from both sides some kitchen garbage and extruded liquid can follow the liquid bearing plate and discharge, thereby improves the separation efficiency of solid and liquid in the kitchen garbage.

Furthermore, by arranging the height of one end of the treatment box, which is close to the feed inlet, in the vertical direction is higher than that of the other end, on one hand, kitchen waste can automatically move along the bottom surface of the treatment box in the direction away from the feed inlet under the action of gravity, so that an additional conveying belt is not required, and the energy is conveniently saved; on the other hand, the liquid in the kitchen waste and the liquid extruded from the kitchen waste can flow out from the liquid outlet along the inner wall surface of the treatment box, so that the subsequent treatment of water and grease is facilitated.

Further, by setting the included angle between the bottom surface of the treatment box and the side wall surface where the first discharge port is located as an obtuse angle, on one hand, kitchen waste can automatically move along the bottom surface of the treatment box in a direction away from the feed port under the action of gravity and simultaneously can move in a direction away from the first discharge port, so that the mobility of the kitchen waste is enhanced, and the first elastic rope and the second elastic rope can conveniently treat all the waste; on the other hand, the liquid in the kitchen waste and the liquid extruded from the kitchen waste can flow out from the liquid outlet along the inner wall surface of the treatment box, so that the subsequent treatment of water and grease is facilitated.

Further, through setting up a plurality of first connection pad, second connection pad, third connection pad and fourth connection pad for at the synchronous pivoted in-process of first carousel and second carousel, first elastic component and second elastic component all can handle kitchen garbage many times, thereby improve the efficiency of rejecting of bag class and paper handkerchief in the kitchen garbage, improve the separation efficiency of solid and liquid in the kitchen garbage, be convenient for follow-up kitchen garbage treatment process go on.

Drawings

Fig. 1 is a schematic perspective view of a kitchen waste pretreatment device according to an embodiment of the present application;

fig. 2 is a schematic view of an exploded part structure of a kitchen waste pretreatment device according to an embodiment of the present application;

fig. 3 is a schematic cross-sectional structure of a treatment tank of a kitchen waste pretreatment device according to an embodiment of the present application;

fig. 4 is a schematic view of an exploded part structure of a treatment mechanism of a kitchen waste pretreatment device according to an embodiment of the present application;

fig. 5 is a schematic perspective view of a gear plate of a kitchen waste pretreatment device according to an embodiment of the present application;

fig. 6 is a schematic cross-sectional structure diagram of a kitchen waste pretreatment device according to an embodiment of the present application;

fig. 7 is a working schematic diagram of a kitchen waste pretreatment device according to an embodiment of the present application.

Wherein:

100. a support frame;

200. a treatment box; 201. a mounting plate; 202. a first mounting ring; 203. a second mounting ring; 210. a feed inlet; 211. a first discharge port; 212. a second discharge port; 213. a liquid outlet;

300. a driving motor;

400. a processing mechanism; 410. a rotating lever; 411. a first turntable; 4111. a first mounting hole; 412. a second turntable; 4121. a second mounting hole; 420. a liquid bearing plate; 421. a liquid carrying tank; 430. a gear plate; 431. a first incomplete tooth; 432. a second incomplete tooth; 440. a first connection plate; 441. a first elastic cord; 442. a second connection pad; 443. a first gear; 450. a third connection pad; 451. a second elastic cord; 452. a fourth connection pad; 453. and a second gear.

Detailed Description

The present application will be further described in detail below with reference to examples, which are provided to illustrate the objects, technical solutions and advantages of the present application. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

The numbering of components herein, such as "first," "second," etc., is used merely to distinguish between the described objects and does not have any sequential or technical meaning. The term "coupled" as used herein includes both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

As shown in fig. 1 to 7, the kitchen waste pretreatment device provided by an embodiment of the application is used for treating kitchen waste; in this embodiment, the kitchen waste pretreatment device includes a support 100, a treatment box 200 and a treatment mechanism 400, the treatment box 200 is disposed on the support 100, and the support 100 is used for supporting the treatment box 200; the treatment box 200 is provided with a vertically arranged length direction and a vertically arranged width direction, the top of the treatment box 200 is provided with a feed inlet 210, the feed inlet 210 is used for receiving kitchen waste after coarse crushing, one side wall of the treatment box 200 extending along the length direction is provided with a first discharge outlet 211, the bottom of the treatment box 200 is provided with a liquid outlet 213 and a second discharge outlet 212, the liquid outlet 213 and the feed inlet 210 are respectively positioned at two ends of the treatment box 200 in the length direction, the second discharge outlet 212 is close to the liquid outlet 213, and two opposite inner side wall surfaces in the length direction of the treatment box 200 are provided with a first mounting ring 202 and a second mounting ring 203 which are coaxial.

The processing mechanism 400 comprises a first rotary table 411, a second rotary table 412, a first elastic piece and a second elastic piece, wherein the first rotary table 411 can be rotatably inserted into the first mounting ring 202, at least two first mounting holes 4111 are formed in the first rotary table 411 along the circumferential direction, and a first connecting plate 440 and a third connecting plate 450 are fixedly arranged in each of the adjacent two first mounting holes 4111; the second turntable 412 is rotatably inserted in the second mounting ring 203, at least two second mounting holes 4121 are formed in the second turntable 412 along the circumferential direction, a second connection disc 442 and a fourth connection disc 452 are rotatably formed in each of the two adjacent second mounting holes 4121, the first connection disc 440 and the second connection disc 442 are correspondingly arranged, the connecting line of the circle center of the first connection disc 440 and the circle center of the second connection disc 442 is coplanar with the connecting line of the circle center of the first turntable 411 and the circle center of the second turntable 412, the third connection disc 450 and the fourth connection disc 452 are correspondingly arranged, the connecting line of the circle center of the third connection disc 450 and the circle center of the fourth connection disc 452 is coplanar with the connecting line of the circle center of the first turntable 411 and the circle center of the second turntable 412, and the first turntable 411 and the second turntable 412 are coaxially arranged and can synchronously rotate; the number of the first elastic pieces is two, one ends of the two first elastic pieces are fixedly connected to the first connecting disc 440, the other ends of the two first elastic pieces are fixedly connected to the second connecting disc 442, the two first elastic pieces are arranged at intervals along the circumferential direction of the first connecting disc 440, and the two first elastic pieces are periodically crossed and twisted to deform under the rotation action of the second connecting disc 442 so as to take out bags and tissue clips in kitchen waste and throw the bags and the tissue clips out of the first discharge port 211; the number of the second elastic pieces is N, N is a natural number which is more than or equal to 3, one ends of the N second elastic pieces are fixedly connected to the third connecting disc 450, the other ends of the N second elastic pieces are fixedly connected to the fourth connecting disc 452, the N second elastic pieces are arranged at intervals along the circumferential direction of the third connecting disc 450, the N second elastic pieces are periodically crossed and twisted to deform under the rotation action of the fourth connecting disc 452, so that part of kitchen waste is clamped and extruded out of liquid, and the liquid is discharged from the liquid outlet 213.

Specifically, the first rotary table 411 and the second rotary table 412 are connected through a rotary rod 410, one end of the rotary rod 410 is fixedly connected to the first rotary table 411, the other end of the rotary rod 410 is fixedly connected to the second rotary table 412, and the first rotary table 411, the rotary rod 410 and the second rotary table 412 are coaxially arranged so that the first rotary table 411 and the second rotary table 412 can synchronously rotate; the line of the center of the first land 440 and the center of the second land 442 corresponding thereto is coplanar with the axis of the rotation lever 410, and the line of the center of the third land 450 and the center of the fourth land 452 corresponding thereto is coplanar with the axis of the rotation lever 410.

More specifically, in the present embodiment, N may be set to four, that is, the number of the second elastic members is four.

More specifically, in the present embodiment, the first elastic member is the first elastic cord 441, and the first elastic cord 441 is always in a stretched state.

More specifically, in the present embodiment, the second elastic member is the second elastic cord 451, and the second elastic cord 451 is always in a stretched state.

It can be appreciated that by providing two first elastic strings 441, the two first elastic strings 441 can clamp the strip-shaped bags and tissues in the kitchen waste after coarse crushing by periodically cross-twisting the two first elastic strings 441 along with the rotation of the first rotary table 411 and the second rotary table 412.

It can be appreciated that by providing N second elastic strings 451, the periodic cross torsion deformation of the N second elastic strings 451 can clamp and squeeze out the liquid of the kitchen waste after coarse crushing as the first rotary table 411 and the second rotary table 412 are rotated; and the greater N, the more kitchen garbage that N second elastic ropes 451 can press from both sides at a time, and the extrusion force that kitchen garbage received is greater to improve the separation efficiency of solid and liquid in the kitchen garbage.

It can be appreciated that, in order to enable the kitchen waste to automatically slide along the length direction of the processing box 200 in a direction away from the feeding port 210 in the processing box 200, a conveyor belt may be disposed on the inner wall surface of the bottom of the processing box 200, and then the kitchen waste is driven to move by the conveyor belt.

Before use, the kitchen waste is coarsely crushed, the solid waste in the kitchen waste is crushed into sheets or blocks, and the bags and tissues are crushed into strips; when the kitchen garbage recycling device is used, kitchen garbage after coarse crushing is put into the treatment box 200 from the feed inlet 210 and is driven by the conveyor belt to slide along the length direction of the treatment box 200 in a direction away from the feed inlet 210 until the kitchen garbage is discharged from the second discharge outlet 212; in the moving process of the kitchen waste, the first rotary table 411 and the second rotary table 412 synchronously rotate, the second connecting disc 442 and the fourth connecting disc 452 periodically rotate along the axis of the first rotary table 411 and the second rotary table 412 respectively, so that the bag and the tissue in the kitchen waste are taken out by the periodic cross torsion deformation of the first elastic rope 441 and are thrown out from the first discharge hole 211, part of the kitchen waste is clamped and extruded to form liquid by the periodic cross torsion deformation of the second elastic rope 451, and the liquid is discharged from the liquid outlet 213, so that the subsequent treatment of water, grease and solids is facilitated.

In some embodiments, as shown in fig. 4, the two first elastic ropes 441 are symmetrically arranged about the center of the circle center of the first turntable 411, so that the distance between the two first elastic ropes 441 is farthest, and in the process of synchronously rotating the first turntable 411 and the second turntable 412, the two first elastic ropes 441 can take out the bags and the tissues in the kitchen waste with the largest screening range, thereby improving the removal efficiency of the bags and the tissues in the kitchen waste, and facilitating the subsequent kitchen waste treatment process.

In some embodiments, as shown in fig. 4, 5, 6 and 7, the processing mechanism 400 further includes a gear disc 430, the gear disc 430 is fixedly inserted in the second mounting ring 203, the second turntable 412 is rotatably inserted in the gear disc 430, the gear disc 430 and the second turntable 412 are coaxially disposed, the gear disc 430 is provided with a first incomplete tooth 431 and a second incomplete tooth 432, the first incomplete tooth 431 and the second incomplete tooth 432 are both coaxially disposed with the gear disc 430, the first incomplete tooth 431 is disposed as a partial tooth with a degree of one hundred eighty degrees or more in the circumferential direction, the second incomplete tooth 432 is disposed as a partial tooth with a degree of two hundred seventy degrees or more in the circumferential direction, and the first incomplete tooth 431 and the second incomplete tooth 432 are alternately disposed along the axial direction of the gear disc 430; the second connection disc 442 is provided with a first coaxial gear 443 near one side of the gear disc 430, the fourth connection disc 452 is provided with a second coaxial gear 453 near one side of the gear disc 430, and the heights of the second connection disc 442 and the fourth connection disc 452 are different, so that the first gear 443 and the second gear 453 are staggered along the axial direction of the gear disc 430, the first gear 443 is meshed with only the first incomplete teeth 431, and the second gear 453 is meshed with only the second incomplete teeth 432.

It will be appreciated that the angle of the partial teeth of the first partial tooth 431 and the second partial tooth 432 in the circumferential direction may be set as desired.

As shown in fig. 7, A, B, C, D, E, F in fig. 7 represents the position of the second or fourth connection pad 442, 452 on the gear disc 430, taking one first connection pad 440 and one second connection pad 442 as an example, initially, the second connection pad 442 is located at the a position, where the first gear 443 on the second connection pad 442 is not engaged with the first incomplete teeth 431, and the first elastic cord 441 between the first connection pad 440 and the second connection pad 442 is straight and in a stretched state; as the second connection disc 442 rotates from the a position to the B position with the clockwise rotation of the first and second rotation discs 411 and 412, the first gear 443 on the second connection disc 442 is engaged with the first incomplete teeth 431, and the two first elastic strings 441 between the first connection disc 440 and the second connection disc 442 are cross-twisted; when the second connecting disc 442 rotates from the position B to the position D, the first gear 443 on the second connecting disc 442 is meshed with the first incomplete teeth 431, so that the first gear 443 drives the second connecting disc 442 to rotate clockwise around the axis of the first gear 443 by a preset angle, and two first elastic ropes 441 between the first connecting disc 440 and the second connecting disc 442 are twisted in a crossed manner and take out bags and tissue clips in kitchen wastes; when the second connecting disc 442 rotates from the D position to the E position, the two first elastic ropes 441 are rotated anticlockwise under the action of the elastic force to reset and throw the clamped bags and tissues out of the first discharge hole 211; when the second connection disc 442 rotates from the E position to the a position, the first gear 443 on the second connection disc 442 is not engaged with the first incomplete teeth 431, and the first elastic cord 441 between the first connection disc 440 and the second connection disc 442 is straight and in a tensed state.

Taking one third connection pad 450 and one fourth connection pad 452 as an example, initially, the fourth connection pad 452 is in the a position, when the second gear 453 on the fourth connection pad 452 is not engaged with the second incomplete teeth 432, the four second elastic ropes 451 between the third connection pad 450 and the fourth connection pad 452 are straight and in a stretched state; along with the clockwise rotation of the first rotary table 411 and the second rotary table 412, when the fourth rotary table 452 rotates from the A position to the F position, the second gear 453 on the fourth rotary table 452 is meshed with the second incomplete teeth 432, so that the second gear 453 drives the fourth rotary table 452 to rotate anticlockwise around the axis of the second gear 453 by a preset angle, and the four second elastic ropes 451 between the third rotary table 450 and the fourth rotary table 452 are crossed and twisted to clamp part of kitchen waste and squeeze out liquid; when the fourth connection disc 452 rotates from the F position to the a position, the four second elastic ropes 451 are twisted clockwise to reset under the elastic force and throw the pressed kitchen waste back into the treating box 200.

It is understood that the movement of the two first elastic strings 441 and the four second elastic strings 451 can be approximately regarded as a twisting process.

In some embodiments, as shown in fig. 2 and fig. 4, the diameter of the first rotary table 411 is larger than that of the second rotary table 412, that is, the distance between the first elastic rope 441 and the second elastic rope 451 from top to bottom and the bottom surface of the treatment box 200 is larger and larger along the length direction of the treatment box 200, so that in the process of synchronously rotating the first rotary table 411 and the second rotary table 412, the first elastic rope 441 and the second elastic rope 451 can treat kitchen waste in an omnibearing manner, thereby improving the removing efficiency of bags and tissues in the kitchen waste and facilitating the subsequent kitchen waste treatment process.

In some embodiments, as shown in fig. 2 and fig. 4, a liquid bearing plate 420 is rotatably sleeved on the rotating rod 410, one end of the liquid bearing plate 420 away from the feeding hole 210 is located above the liquid outlet 213, a liquid bearing groove 421 is arranged on the liquid bearing plate 420, and the opening direction of the liquid bearing groove 421 is always vertically upward under the action of gravity, and the liquid bearing groove 421 is used for guiding part of liquid extruded from kitchen waste to the liquid outlet 213; in the process of rotating the first rotating disc 411 and the second rotating disc 412, the second gear 453 on the fourth connecting disc 452 is meshed with the second incomplete teeth 432, so that the second gear 453 drives the fourth connecting disc 452 to rotate around the axis of the second gear 453 by a preset angle, and further, the four second elastic ropes 451 between the third connecting disc 450 and the fourth connecting disc 452 are crossed and twisted to clamp part of kitchen waste and squeeze out liquid, the liquid is divided into two parts, one part falls into the kitchen waste again and flows out from the liquid outlet 213 along the inner wall surface of the treatment box 200, and the other part directly flows out from the liquid outlet 213 through the liquid bearing groove 421, so that the separation efficiency of solids and liquid in the kitchen waste is improved.

In some embodiments, as shown in fig. 1 and 2, one end of the treatment tank 200, which is close to the feed inlet 210, is higher than the other end in the vertical direction, and by arranging the treatment tank 200 to be inclined, on the one hand, kitchen waste can automatically move along the bottom surface of the treatment tank 200 in a direction away from the feed inlet 210 under the action of gravity, so that an additional conveyor belt is not required, and energy is saved conveniently; on the other hand, the liquid in the kitchen waste and the liquid extruded from the kitchen waste can flow out from the liquid outlet 213 along the inner wall surface of the treatment box 200, so that the subsequent treatment of water and grease is facilitated.

In a further embodiment, as shown in fig. 2 and fig. 6, the included angle between the bottom surface of the treatment tank 200 and the side wall surface where the first discharge port 211 is located is an obtuse angle, so that on one hand, the kitchen waste automatically moves along the bottom surface of the treatment tank 200 in a direction away from the feed port 210 under the action of gravity and simultaneously can move in a direction away from the first discharge port 211, thereby enhancing the mobility of the kitchen waste, and being convenient for the first elastic rope 441 and the second elastic rope 451 to treat all the waste; on the other hand, the liquid in the kitchen waste and the liquid extruded from the kitchen waste can flow out from the liquid outlet 213 along the inner wall surface of the treatment box 200, so that the subsequent treatment of water and grease is facilitated.

In some embodiments, as shown in fig. 4, the number of the first, second, third and fourth connection pads 440, 442, 450 and 452 is plural, and the plural first and third connection pads 440 and 450 are alternately and uniformly disposed on the first rotation pad 411 in the circumferential direction of the first rotation pad 411; the plurality of second connection pads 442 and the plurality of second connection pads 442 are alternately and uniformly disposed on the second rotary table 412 in the circumferential direction of the second rotary table 412.

Specifically, the number of the first mounting holes 4111 may be set to six, the six first mounting holes 4111 are uniformly distributed on the first rotary table 411 in the circumferential direction, the number of the second mounting holes 4121 may be set to six, and the six second mounting holes 4121 are uniformly distributed on the second rotary table 412 in the circumferential direction; the number of the first, second, third and fourth connection pads 440, 442, 450 and 452 may be all set to three, and the first and third connection pads 440 and 450 are fixedly inserted in the first mounting hole 4111 at intervals and alternately in the circumferential direction; the second and fourth connection plates 442 and 452 are rotatably inserted in the second mounting hole 4121 at intervals and alternately in the circumferential direction; so that the first elastic rope 441 and the second elastic rope 451 can treat the kitchen waste for a plurality of times in the synchronous rotation process of the first rotating disc 411 and the second rotating disc 412, thereby improving the removing efficiency of the bags and the tissues in the kitchen waste, improving the separating efficiency of the solids and the liquid in the kitchen waste, and facilitating the follow-up kitchen waste treatment process.

In some embodiments, a mounting plate 201 is disposed on an outer sidewall surface of the processing box 200 adjacent to the feed inlet 210 in a length direction; the kitchen waste pretreatment device further comprises a driving piece, the driving piece is used for providing driving force for the rotation of the first rotary table 411, in the embodiment, the driving piece is a driving motor 300, the driving motor 300 is fixedly connected to the mounting plate 201 through bolts, a motor shaft of the driving motor 300 is fixedly connected to the first rotary table 411 and is coaxially arranged with the first rotary table 411, the driving motor 300 drives the first rotary table 411 to rotate, and the first rotary table 411 drives the second rotary table 412 to rotate through a rotary rod 410.

The embodiment of the application also provides a kitchen waste pretreatment method which is applied to any kitchen waste pretreatment device and comprises the following steps:

the kitchen waste can be intensively recovered through the collecting barrel, and then the intensively recovered kitchen waste is conveyed to a treatment station through the collecting and conveying vehicle and is coarsely crushed.

Step S2, separation treatment: pouring the kitchen waste after coarse crushing into a treatment box 200, separating out bags and kitchen paper towel waste doped in the kitchen waste through a treatment mechanism 400, and extruding the kitchen waste;

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims

1. The utility model provides a kitchen garbage preprocessing device which characterized in that, kitchen garbage preprocessing device includes:

2. A kitchen waste pretreatment device according to claim 1, wherein the two first elastic members are arranged symmetrically with respect to the center of the circle of the first turntable.

3. The kitchen waste pretreatment device according to claim 1, wherein the treatment mechanism further comprises a gear plate, the gear plate is arranged on the inner side wall surface of the treatment box, the gear plate and the second rotary plate are coaxially arranged, a first incomplete tooth and a second incomplete tooth are arranged on the gear plate, and the first incomplete tooth and the second incomplete tooth are coaxially arranged with the gear plate; a first coaxial gear is arranged on one side, close to the gear disc, of the second connecting disc, and the first gear is meshed with the first incomplete teeth; and a coaxial second gear is arranged on one side, close to the gear disc, of the fourth connecting disc, and the second gear is meshed with the second incomplete gear.

4. A kitchen waste pretreatment device according to claim 1, wherein the diameter of the first turntable is larger than the diameter of the second turntable.

5. A kitchen waste pretreatment device according to claim 1, wherein the first turntable and the second turntable are connected by a rotating rod, a liquid receiving plate is rotatably sleeved on the rotating rod, and a liquid receiving groove is arranged on the liquid receiving plate and used for guiding part of the liquid to the liquid outlet.

6. A kitchen waste pretreatment device according to claim 1, wherein one end of the treatment tank near the feed inlet is higher than the other end in the vertical direction.

7. The kitchen waste pretreatment device as claimed in claim 6, wherein an included angle between a bottom surface of the treatment tank and a side wall surface of the first discharge port is an obtuse angle.

8. The kitchen waste pretreatment device according to claim 1, wherein the number of the first connection pad, the second connection pad, the third connection pad, and the fourth connection pad is plural, and the plural first connection pads and the plural third connection pads are alternately and uniformly arranged on the first turntable in a circumferential direction of the first turntable; the plurality of second lands and the plurality of second lands are alternately and uniformly disposed on the second turntable in a circumferential direction of the second turntable.

9. A kitchen waste pretreatment device according to claim 1, further comprising a driving member for providing a driving force for rotation of the first rotary disk.

10. A kitchen waste pretreatment method characterized in that the kitchen waste pretreatment device according to any one of claims 1 to 9 is used, the kitchen waste pretreatment method comprising the steps of: