CN113665159A

CN113665159A - Solid-liquid separation device and kitchen waste processor with same

Info

Publication number: CN113665159A
Application number: CN202111058885.7A
Authority: CN
Inventors: 梅祖睿
Original assignee: Ningbo Meigao Kitchenware Co Ltd
Current assignee: Ningbo Meigao Kitchenware Co Ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2021-11-19

Abstract

The invention discloses a solid-liquid separation device, which comprises a driving mechanism, a separation barrel, a screw head cover and a screw; the separation cylinder is provided with a feeding end and a liquid discharging port; one end of the screw head cover is connected with one end of the separation cylinder, and the other end of the screw head cover is a solid discharge port; the driving mechanism is connected to one end, far away from the screw head cover, of the separation barrel and is in transmission connection with the screw; the screw is rotationally connected in the separating cylinder, one end of the screw is connected with the driving mechanism, and the other end of the screw is positioned in the screw head cover; a filtering structure is also arranged in the separating cylinder; the feed end is offset from the liquid discharge port. After the structure more than adopting, kitchen garbage not only can not block up sewer pipe, and the rubbish of collecting moreover is solid-state cubic or strip, therefore handles very easily, can not have the condition of weeping to appear, and it is more convenient to empty.

Description

Solid-liquid separation device and kitchen waste processor with same

Technical Field

The invention relates to the technical field of kitchen waste treatment equipment, in particular to a solid-liquid separation device and a kitchen waste treater with the same.

Background

The treatment of kitchen waste is a relatively difficult link for resource utilization of the current waste, and certain difficulties are faced from collection, storage, transportation and treatment, so that a user has a great deal of inconvenience in the life process. A kitchen waste disposer is a way to reduce this inconvenience. The existing kitchen garbage disposer mainly comprises three main categories: firstly, the kitchen garbage is mechanically crushed, filtered and dried by mainly adopting a crushing device and a filtering device, and is converted into dry and tiny powder which is then poured by a user regularly without discharging residues to a drainage pipe; secondly, the sewage is biological, is uniformly treated by a building drainage system (mainly in a microbial decomposition mode), and then is discharged to a public drainage system; three are single units, the most common one, by motor driven crushing device to grind and then directly discharge it to the sewer pipe. And monomer formula garbage processor is more applicable to family house, and its price is lower relatively, but sewer pipe's design original intention is discharge domestic sewage, just directly discharge sewer pipe after rubbish from cooking only smashes, can bring very big pressure to pipe-line system, and form easily in the pipeline and pile up or adhere to, not only can cause rotten smelly, bacterial growing, still cause the pipe blockage easily, burst, still can produce marsh gas sometimes even, thereby lead to more hiding but serious environmental pollution and very big municipal pressure, even cause the incident.

Therefore, the current kitchen waste disposer cannot meet the requirements of conveniently disposing the kitchen waste, reasonably utilizing effective resources, having compact volume and being suitable for household space.

Disclosure of Invention

The invention aims to solve the technical problem of providing a solid-liquid separation device capable of performing solid-liquid separation after crushing garbage and a kitchen garbage disposer with a cover device.

In order to solve the technical problem, the invention provides a solid-liquid separation device, which comprises a driving mechanism, a separation barrel, a screw rod head cover and a screw rod, wherein the screw rod head cover is arranged on the screw rod; the separation cylinder is provided with a feeding end and a liquid discharging port; one end of the screw head cover is connected with one end of the separation cylinder, and the other end of the screw head cover is a solid discharge port; the driving mechanism is connected to one end, far away from the screw head cover, of the separation barrel and is in transmission connection with the screw; the screw is rotationally connected in the separating cylinder, one end of the screw is connected with the driving mechanism, and the other end of the screw is positioned in the screw head cover; a filtering structure is also arranged in the separating cylinder; the feed end is offset from the liquid discharge port.

Preferably, the screw pitch from the tail end to the front end of the screw is a gradually reduced screw pitch; after setting up like this, the screw rod is great to the delivery capacity of material in the rear end, and just can squeeze partial moisture into entering into the front end in-process, and the efficiency of squeezing water when reentrant front end is higher for realize squeezing water fast under shorter pitch, thereby reduce holistic volume, make the below space utilization of kitchen sink higher.

Preferably, the screw comprises a conveying rotating body and an extrusion head, one end of the conveying rotating body is connected with the driving mechanism, and the other end of the conveying rotating body is connected with the extrusion head; the screw thread on the conveying rotating body extends to the end part of one end of the extrusion head far away from the conveying rotating body; the outer side wall of the extrusion head is also provided with at least one extrusion strip, and the extrusion strip extends to the end part of one end of the extrusion head far away from the conveying rotating body; after the extrusion strip is additionally arranged, materials conveyed to the extrusion head by the conveying rotating body can be quickly extruded and dehydrated in a large amount, the whole volume can be further reduced, and the utilization rate of the space below the kitchen sink is higher.

Preferably, the conveying rotator and the extrusion head are of an integrated structure; the overall strength of the screw is higher and the service life is longer.

Preferably, the conveying rotator and the extrusion head are of a split structure; then because in the use, extrusion head atress is the biggest, and the screw thread of extrusion head just also is easy to be out of shape and wearing and tearing, in case warp and the back of wearing and tearing, just need change, split type setting back for follow-up only need change extrusion head part can, need not whole screw rod and change, so the replacement cost is lower.

Preferably, the extrusion head is a hollow cone, the outer circumferential surface of one end of the conveying rotating body, which is close to the solid discharge port, is an outer conical surface, and the inner side wall of the extrusion head is an inner conical surface matched with the outer conical surface of the conveying rotating body; after the arrangement, the position of the extrusion head is stressed greatly when the extrusion dehydration is carried out, so that the thread at the position is easy to damage, and once the thread is damaged, only the extrusion head needs to be replaced, the replacement of the whole screw is invalid, the whole screw does not need to be detached, the extrusion head can be detached after the screw head cover is detached, the replacement is simpler, more convenient and faster, and the maintenance cost is reduced and the maintenance time is shortened.

Preferably, the outer circumferential wall of the conveying rotating body below the feeding end is provided with an inwards concave groove; the outer peripheral wall of the screw is provided with two threads, one of the threads is a thread I, the starting position of the thread I is positioned on the groove, and the ending position of the thread I is positioned at the end part of the extrusion head, which is far away from one end of the conveying rotating body; the other thread is a thread II, the starting position of the thread II is positioned at one end of the conveying rotating body, and the ending position of the thread II is positioned at the end part of the extrusion head, which is far away from one end of the conveying rotating body; the diameters of the top circles of the screw thread I and the screw thread II are always the same; the extrusion strip is positioned between the screw thread I and the screw thread II; after the groove is arranged, the mixed liquid is not easy to block at the feeding port, and simultaneously, under the action of the screw thread, the material at the groove has an initial extrusion effect before entering the conical part, and partial water can be separated, so that the dehydration efficiency of the conical part is higher, and the water can be conveniently discharged; and the different setting of termination department of double thread for mixed liquid is being carried with regard to a screw thread in filtration department, makes moisture can be by the filtration separation as much as possible, and becomes two transport again when the front end, thereby guarantees that more materials are carried the extrusion end, thereby improves dehydration efficiency.

Preferably, one end of the screw head cover is in threaded connection with the end part of the separating cylinder, and the other end of the screw head cover is connected with the frame through a supporting mechanism; a plurality of axially extending convex ribs are arranged on the inner side wall of the screw head cover matched with the screw; after the convex rib is arranged, when the screw is extruded, the convex rib has a blocking effect on the material, so that the material tends to move forward more quickly, the water squeezing efficiency is improved, the material is squeezed and dehydrated quickly, the unit service time of the equipment is shortened, and the energy consumption is reduced.

Preferably, the ribs comprise short ribs and long ribs which are alternately arranged; because the particles of the smashed kitchen garbage are different, the convex ribs with different lengths can facilitate the particles with different particle diameters to quickly enter the water squeezing working area, the retention time of materials is reduced, the blockage situation is not easy to occur, and the working stability of the equipment is better.

Preferably, the solid-liquid separation device is also provided with a baffle, one end of the baffle is arc-shaped and positioned above the discharge end of the screw, and the other end of the baffle is locked at the end part of the screw head cover through a locking nut; then after the baffle is set, the dewatered garbage is downwards stopped and falls into the material receiving barrel in the garbage collecting box, and the garbage is prevented from falling after coming out from the discharge end of the solid-liquid separation device and upwards contacting the top wall of the garbage collecting box.

Preferably, a vertically downward material distributing plate is arranged on the inner surface of the arc-shaped plate of the baffle plate, and the lower end of the material distributing plate is positioned in front of the discharge end of the screw rod; after the material distributing plate is arranged, the garbage discharged from the discharging end can be cut by the material distributing plate under the guide of the arc-shaped plate, so that the garbage falls into the material receiving barrel and is in a block shape or a granular shape, the accommodating rate of the material receiving barrel is improved, and the cleaning period of the material receiving barrel is prolonged.

Preferably, the filter structure is located above the liquid discharge port; after the arrangement, the solid-liquid separation effect is better, the blockage in the drainage pipeline is not easy to cause, and the use stability and reliability are improved.

Preferably, the filtering structure is an annular filter screen; the liquid outlet is a square opening, the length of the long side of the square opening is greater than or equal to the diameter of the filter screen, and the length of the short side of the square opening is greater than or equal to the axial length of the filter screen; the inner diameter of the filter screen is equal to the outer diameter of the conveying rotating body, and the filter screen is sleeved on the periphery of the conveying rotating body; most liquid in the kitchen waste can be directly separated and then directly flows to the liquid discharge port, the waste water generated by extrusion can be discharged to a sewer pipe through the waste water discharge device, and the kitchen waste dried at the solid discharge port enters the waste collection device, so that the sewer pipe is not blocked, and the water extrusion efficiency can be greatly improved; meanwhile, the filter screen is arranged at the liquid outlet, so that the filter screen is more convenient to install, and the separating cylinder is easier to form, thereby reducing the production cost; the position of the filter screen can also play a good role in solid-liquid separation, so that the amount of water brought into the extrusion end is reduced, and the extrusion efficiency is improved.

Preferably, the separating cylinder is also provided with a cleaning device for cleaning the filter screen; then cleaning device sets up the back for the difficult jam of filter screen in the use improves filtration efficiency, thereby improves extrusion efficiency, still can guarantee the stability in use and the reliability of equipment.

Preferably, the self-cleaning device is positioned outside the filter screen and is connected to the separation cylinder at the liquid outlet; after the arrangement, the self-cleaning device is more convenient to mount, and meanwhile, the influence of the mixture in the filter screen on the self-cleaning device is less, so that the self-cleaning device is better in use stability and longer in service life.

Preferably, the filter screen is cylindrical, a plurality of circles of filter holes are arranged on the circumferential wall along the circumferential direction, and the filter screen is sleeved at the tail part of the screw in the dehydration device; with such a structure, the filter screen is simpler to assemble, and the cleaning device can push the filter screen to rotate, so that the probability that the filter screen is blocked is smaller, and the overall use stability of the equipment is better.

Preferably, the self-cleaning device comprises a cleaner and a rotating shaft, the cleaner is tightly matched and connected with the rotating shaft, two ends of the rotating shaft are rotatably connected to the separating cylinder, a plurality of rings of gear rings are axially arranged on the outer circumferential wall of the cleaner, and teeth on the gear rings are inserted into or separated from the filtering holes on the filtering net; one end of the rotating shaft is connected with the driving device through a transmission mechanism; under the action of the gear ring, the teeth of the gear ring can extrude the particles in the filtering holes in the filter screen back to the inside of the filter screen, so that the particles are conveniently conveyed to the extruding end by the screw rod to be extruded and dehydrated, the filter screen is not easy to be blocked, and the self-cleaning function is achieved, so that the continuous service performance of the equipment is better, and the maintenance period is longer; the gear ring is simple in structure, easy to machine and form and low in preparation cost, the rotating shaft is disassembled during maintenance, the gear ring can be taken out, and assembly and maintenance are convenient.

Preferably, the self-cleaning device comprises a cleaner and a rotating shaft, the cleaner is fixedly connected with the rotating shaft, two ends of the rotating shaft are rotatably connected to the separating cylinder, the cleaner is a brush, and the free end of the brush is positioned in the filter hole; one end of the rotating shaft is connected with the driving device through a transmission mechanism; the preparation cost of the brush is low, the brush can be directly obtained from the market, the purchase is convenient, and the brush has a cleaning effect on the peripheral surface of the whole filter screen when rotating, so that the peripheral surface of the filter screen is not easy to scale, and the comprehensive energy consumption for long-term use is reduced.

Preferably, the transmission mechanism comprises a gear, the gear is connected to one end of the rotating shaft and is limited in the circumferential direction, a plurality of concave tooth grooves arranged in the circumferential direction are formed in the tail of the screw, and the gear is in meshing transmission with the tooth grooves; the arrangement is such that no additional transmission and driving mechanism is needed, and space and parts can be saved, thereby reducing the volume and the production cost.

The invention also aims to provide a kitchen waste processor which comprises a waste crushing device and the solid-liquid separation device, wherein an outlet of the waste crushing device is communicated with a feeding end through a pipeline, a liquid discharge port is connected with a drain pipe, and sewage generated after dehydration is discharged through the liquid discharge port.

Preferably, the pipeline is provided with a three-way reversing valve, one interface of the three-way reversing valve is communicated with an outlet of the garbage crushing device, one interface of the three-way reversing valve is communicated with the feeding end, and the rest interface of the three-way reversing valve is communicated with the drain pipe; after then setting up like this, the daily state of tee bend switching-over valve is that rubbish reducing mechanism and solid-liquid separation equipment are the intercommunication, and in case when solid-liquid separation equipment goes wrong or need maintain, the accessible tee bend switching-over valve switches over the state of rubbish reducing mechanism and drain pipe intercommunication, satisfies the user demand of basin temporarily, and convenient to use person's use also is convenient for give maintainer's overall arrangement, reserves more time for maintaining.

After adopting the structure, compared with the prior art, the invention has the following advantages:

1) the garbage crushing device is connected with the dewatering device, so that the kitchen garbage is dewatered by the dewatering device after being crushed, the water attached to the garbage is removed, the generated waste water is discharged to another pipeline through the waste water discharging device, and the dried kitchen garbage enters the garbage collecting device; therefore, the sewer pipeline cannot be blocked, and the collected garbage is in a solid block shape or a solid strip shape, so that the garbage is easy to treat, does not have seepage, and is more convenient to pour;

2) the threads on the screw rod effectively convey the kitchen waste, so that the resistance is reduced in the conveying process; the screw pitch of the screw is gradually reduced from the tail part to the head part, and the extrusion force on the garbage is increased, so that the water in the kitchen garbage is conveniently filtered, and the extrusion efficiency is improved;

3) the screw is in split type design consisting of a conveying rotating body and an extrusion head, so that the thread pitch of the thread on the outer peripheral wall of the conveying rotating body and the thread pitch of the thread on the outer peripheral wall of the extrusion head are enabled to be simpler in processing gradually changed from large to small;

4) the extrusion strips on the extrusion head are arranged, and the inner side wall of the screw head cover is provided with a plurality of axially extending convex ribs, so that garbage is extruded more fully under the blocking of the extrusion strips and the convex ribs, and the dehydration effect is better; the convex ribs are alternately arranged at intervals by adopting long convex ribs and short convex ribs, so that the extrusion effect is further improved;

5) the arrangement of the baffle plate and the design of the material distributing plate on the baffle plate ensure that the state of the dewatered garbage falling into the garbage collecting box is blocky or strip-shaped, and the garbage is prevented from splashing to other places after coming out from the discharge end of the dewatering device;

6) after the filtering structure is arranged, most of liquid is firstly filtered by the filtering structure, so that the influence of the liquid on water squeezing is reduced, and the water squeezing efficiency is improved;

7) the feed end is staggered with the liquid discharge port, so that the solid-liquid mixture can not directly enter the liquid discharge port, solid particles are prevented from being discharged from the liquid discharge port, and the feeding effect of the screw and the filtering efficiency of the filtering structure can be improved.

Drawings

FIG. 1 is a schematic view showing a structure of a kitchen garbage disposer having a solid-liquid separator according to the present invention.

FIG. 2 is a schematic sectional view showing the structure of the solid-liquid separator of the present invention.

FIG. 3 is a schematic structural view of a separation cylinder of the solid-liquid separation apparatus of the present invention.

FIG. 4 is a schematic structural view of a screw and a discharge end thereof of the solid-liquid separation device of the present invention.

Fig. 5 is a schematic diagram of the exploded structure of fig. 4.

FIG. 6 is a schematic view showing the structure of a screw head cover of the solid-liquid separator of the present invention.

FIG. 7 is a schematic view showing the structure of a screw of the solid-liquid separation apparatus of the present invention.

FIG. 8 is a schematic structural diagram of a strainer of the solid-liquid separation apparatus of the present invention.

FIG. 9 is an exploded view of another embodiment of the solid-liquid separator of the present invention.

FIG. 10 is a schematic structural view of a cleaning apparatus according to another embodiment of the solid-liquid separation apparatus of the present invention.

FIG. 11 is a schematic structural view of a separation cylinder in another embodiment of the solid-liquid separation apparatus of the present invention.

FIG. 12 is a schematic view showing a structure of a separation cylinder in another direction according to another embodiment of a solid-liquid separation apparatus of the present invention.

Wherein: 1. a water tank; 2. a frame; 3. a garbage crushing device; 4. a drive mechanism; 6. a conveying swivel; 7. a separation cylinder; 8. a feeding end; 9. an extrusion head; 10. a screw head cover; 11. locking the nut; 12. a material distributing plate; 13. a baffle plate; 14. extruding teeth; 15. an outer conical surface; 16. an inner conical surface; 17. extruding the strip; 18. a rib is protruded; 19. filtering with a screen; 20. a thread I; 21. a thread II; 22. a groove; 23. a cleaner; 24. a gear; 25. a tooth socket; 26. connecting blocks; 27. a rotating shaft; 28. a ring gear; 29 filter holes; 30. connecting columns; 31. an open slot; 32. hanging the plate; 33. a boss; 34. positioning a groove; 35. and (4) recessing.

Detailed Description

The present invention will be described in further detail with reference to specific embodiments.

As shown in FIG. 1, the kitchen garbage disposer with a dewatering device of the present invention comprises a frame 2 having a water tank 1 mounted on the top thereof, and a garbage crusher 3 mounted under the water tank 1 and connected to a liquid outlet of the water tank, wherein the garbage crusher 3 is a commercially available household garbage crusher, and an inlet of the garbage crusher 3 is directly mounted at the liquid outlet of the bottom of the water tank 1; the kitchen waste processor also comprises a dewatering device, a waste collecting device and a waste water discharging device; the outlet of the garbage crushing device 3 is communicated with the feed end of the dewatering device through a pipeline, a three-way reversing valve is arranged on the pipeline, one interface of the three-way reversing valve is communicated with the outlet of the garbage crushing device, one interface of the three-way reversing valve is communicated with the feed end of the dewatering device, and the rest interface of the three-way reversing valve is communicated with a drain pipe (communicated with a sewer pipe), so that after the three-way reversing valve is arranged, the daily state of the three-way reversing valve is that the garbage crushing device 3 is communicated with the dewatering device, and once the dewatering device has a problem or needs to be maintained, the three-way reversing valve can be switched to the state that the garbage crushing device 3 is communicated with the drain pipe, the use requirement of the water tank 1 is met temporarily, the use of a user is facilitated, the overall arrangement of maintenance personnel is facilitated, and more time is reserved for maintenance; the feed end of the dehydration device is lower than the outlet of the garbage crushing device 3, so that the crushed garbage can enter the dehydration device more conveniently, the blockage of the garbage in a pipeline is reduced, the use stability is improved, and the maintenance period is prolonged; the feed end of the dehydration device is lower than the outlet of the garbage crushing device 3, so that the crushed garbage can enter the dehydration device more conveniently, the blockage of the garbage in a pipeline is reduced, the use stability is improved, and the maintenance period is prolonged; a driving mechanism 4 for driving the dehydration device to perform dehydration; the driving mechanism 4 is fixedly arranged on the frame 2, the power output end of the driving mechanism 4 is connected with the power input end of the dewatering device through a transmission mechanism, and the transmission mechanism is a worm and gear mechanism.

As shown in fig. 2 to 3, the dehydration apparatus includes a drive mechanism 4, a separation cylinder 7, a screw head cover 10, and a screw; the separating cylinder 7 is connected on the frame 2, the upper end of the separating cylinder 7 is provided with a feeding end 8 connected with the garbage crushing device 3 through a pipeline, and the lower part of the separating cylinder 7 is provided with a liquid discharge port; one end of the screw head cover 10 is connected with one end of the separating cylinder 7, and the other end of the screw head cover 10 is a solid discharge port; the driving mechanism 4 is connected to one end of the separating cylinder 7, which is far away from the screw head cover 10, and the driving mechanism 4 is in transmission connection with the screw through a worm gear; the screw rod is rotatably connected in the separating cylinder 7, one end of the screw rod, which is connected with the worm gear, is a tail end, the other end of the screw rod is a front end, and the front end of the screw rod is rotatably connected in the screw rod head cover 10; and the other end of the screw head cover 10 is connected with the frame 2 through the support assembly, so that the overall connection stability of the dehydration device is better.

The separating cylinder 7 distributes along the circumferencial direction on the inside wall that is close to feed end 8 and has many extrusion teeth 14, extrusion teeth 14 are the skewed tooth, the incline direction and the screw rod pivoted opposite direction of skewed tooth, then form certain crowded effect of turning round to the material in this interval, play similar clothes and twist reverse the principle of crowded water, the event also is an extrusion dehydration district, this dehydration district can improve the dehydration efficiency of front end screw rod head cover 10 department, and then guarantee to accomplish the higher dehydration effect of dehydration rate in shorter stroke.

As shown in fig. 4, 5 and 7, the screw pitch from the tail end to the front end of the screw is a decreasing screw pitch which gradually decreases, and as the garbage crushing device 3 comes out of a mixture of particles and water, the water content of the mixture is high, when the mixture enters a position with a large screw pitch, most of the water is directly discharged through the filter screen, and the screw with the large screw pitch can convey enough particles for the screw at the front end to extrude and dewater, so that the dewatering efficiency in unit time is ensured, the continuous working time of the equipment is shortened, and the use experience of a user is improved; the screw comprises a conveying rotating body 6 and an extrusion head 9, the conveying rotating body 6 and the extrusion head 9 are of a split structure, one end of the conveying rotating body 6 is connected with the driving mechanism 4, and the other end of the conveying rotating body 6 is connected with the extrusion head 9; the screw thread on the conveying rotator 6 extends to the end part of one end of the extrusion head 9 far away from the conveying rotator 6; the outer side wall of the extrusion head 9 is also provided with at least one extrusion strip 17 (two in this example), the extrusion strip 17 extends to the end part of the extrusion head 9 far away from one end of the conveying rotating body 6, the extrusion strip 17 is spiral, the extrusion head 9 can also be understood as the extrusion strip 17 formed by a plurality of threads, and the screw pitches of the adjacent extrusion strips 17 are different, so that the extrusion efficiency can be improved, the stress area of the screw head cover 10 during extrusion can be dispersed, and the screw head cover 10 is prevented from being damaged due to concentrated stress; the extrusion head 9 is a hollow cone, and the conveying rotator 6 can also be a hollow structure, so that the material cost can be saved, and the weight can be reduced; the outer circumference surface of one end of the conveying rotator 6 close to the solid discharge port is an outer conical surface 15, and the inner side wall of the extrusion head 9 is an inner conical surface 16 matched with the outer conical surface 15 of the conveying rotator 6. The outer peripheral surface of the conveying rotating body 6 is provided with conveying threads, one end of each conveying thread close to the extrusion head 9 is in butt joint with the corresponding extrusion strip 17, so that the conveying threads and the corresponding extrusion strips 17 are combined to form a complete spiral line from the extrusion head 9 to the conveying rotating body 6, and the conveying efficiency can be improved; besides the extrusion strips 17 abutting against the conveying screw, there are also extrusion strips 17 on the extrusion head 9, and the starting positions of these extrusion strips 17 are located in the middle of the extrusion head 9 and have different screw pitches.

In another embodiment, the outer circumferential wall of the conveying rotor 6 (the conveying rotor and the extrusion head are in an integrated structure) below the feeding end 8 is provided with a concave groove 22; the number of the threads on the outer peripheral wall of the screw is two, one thread is a thread I20, the starting position of the thread I20 is positioned on the groove 22, and the ending position of the thread I20 is positioned at the end part of the extrusion head 9, which is far away from one end of the conveying rotator 6; the other is a screw thread II 21, the starting position of the screw thread II 21 is positioned at one end of the conveying rotator 6, and the ending position of the screw thread II 21 is positioned at the end part of the extrusion head 9 far away from one end of the conveying rotator 6; the diameters of the top circles of the screw thread I20 and the screw thread II 21 are always the same; the extrusion strip 17 is located at a position between the thread i 20 and the thread ii (21).

As shown in fig. 6, one end of the screw head cover 10 is provided with an internal thread, the outer peripheral surface of the separation cylinder 7 near one end of the screw head cover 10 is provided with an external thread, the internal thread of the screw head cover 10 is screwed with the external thread of the separation cylinder 7, and the other end of the screw head cover 10 is connected with the frame 2 through a support mechanism, which can increase the connection stability of the screw head cover 10; the inner side wall of the screw head cover 10 matched with the screw is provided with a plurality of convex ribs 18 extending axially.

In another embodiment, the ribs 18 comprise short ribs and long ribs which are arranged alternately, and the width of the long ribs is greater than that of the short ribs, so that the extruded material can enter the extrusion space more easily after being arranged, and the extrusion dehydration efficiency is further improved.

The dewatering device is further provided with a baffle 13, one end of the baffle 13 is arc-shaped and is positioned above the discharge end of the screw head cover 10, the other end of the baffle 13 is provided with an annular connecting piece, the connecting piece is connected with the screw head cover 10 through a locking nut 11, the discharge end of the screw head cover 10 is provided with an external thread, and a locking nut 15 is screwed at the external thread of the discharge end of the screw head cover 10, so that the connecting piece is pressed at the discharge end of the screw head cover 10, and the structure enables the position adjustment of the baffle 13 to be more convenient and the installation to be more convenient, and the production efficiency to be improved; usually, the baffle 13 and the connecting piece are integrally injection molded, so that the number of parts can be reduced, the connecting strength is improved, the production efficiency can be improved, and the cost is reduced.

Be equipped with vertical decurrent branch flitch 12 on the arc internal surface of baffle 13, baffle 13 and the integrative injection moulding of branch flitch 12, the quantity of reducible part not only still can improve production efficiency, and then reduce cost, divide flitch 12 lower extreme to be located the place ahead of the discharge end of screw rod skull 10, divide flitch 12 can be cut the rubbish of being extruded by the screw rod, and the rubbish of being convenient for drops fast in the material receiving bucket.

In another embodiment, as shown in fig. 8, a filtering structure is further provided in the separation cylinder 7, the filtering structure is located above the liquid discharge port, and the filtering structure is an annular filtering net 16; the liquid discharge port is a square opening, the length of the long side of the square opening is more than or equal to the diameter of the filter screen 19, and the length of the short side of the square opening is more than or equal to the axial length of the filter screen 19; the inner diameter of the filter screen 19 is equal to the outer diameter of the conveying rotor 6, and the filter screen 19 is sleeved on the periphery of the conveying rotor 6. When the filter screen 19 is installed, the filter screen is directly pushed into the separating cylinder 7 from the liquid outlet, so that the installation is more convenient; the inner diameter of the filter screen 19 is equal to the outer diameter of the conveying rotor 6, so that the particulate matters on the filter screen 19 can be conveyed to the extrusion end by the conveying rotor 6, the probability of blockage of the filter screen 19 is reduced, and the maintenance period is prolonged.

In another embodiment, as shown in fig. 9-12, the separating cylinder 7 is also provided with cleaning means for cleaning the sieve 19. The self-cleaning device comprises a cleaner 23 and a rotating shaft 27, wherein the cleaner 23 is tightly matched and connected with the rotating shaft 27, two ends of the rotating shaft 27 are rotatably connected to the separating cylinder 7, a plurality of circles of gear rings 28 are arranged on the outer circumferential wall of the cleaner 23 along the circumferential direction, and teeth on the gear rings 28 are inserted into or separated from filtering holes 29 on the filter screen 19; one end of the rotating shaft 27 is connected with the driving device 4 through a transmission mechanism; under the action of the gear ring 28, the teeth on the gear ring 28 can extrude the particles in the filtering holes 29 on the filter screen 19 back to the inside of the filter screen 19, so that the particles are conveniently conveyed to the extruding end by a screw to be extruded and dehydrated, the filter screen 19 is not easy to be blocked, and a self-cleaning effect is achieved, so that the continuous service performance of the equipment is better, and the maintenance period is longer; the structure is simple, the processing and the forming are easy, the preparation cost is low, the rotating shaft is disassembled during maintenance, the gear ring 28 can be taken out, and the assembly and the maintenance are convenient.

The transmission mechanism comprises a gear 24, the gear 24 is connected to one end of a rotating shaft 27 and is limited in the circumferential direction, a plurality of concave tooth grooves 25 which are arranged along the circumferential direction are formed in the tail part of the conveying rotating body 6, and the gear 24 and the tooth grooves 25 are in meshing transmission; no additional transmission and driving mechanism is needed, so that the space and parts can be saved, the volume is reduced, and the production cost is reduced.

The drive mechanism may also be other structures such as a pulley drive mechanism, a ratchet mechanism, etc.

The joint of the rotating shaft 27 and the separating cylinder 7 is divided into two ends for connection treatment, wherein one end is a first joint close to the direction of the extrusion head 9, and the other end is a second joint close to the direction of the driving device 4; the first connecting part comprises a connecting block 26, an arc-shaped groove for accommodating the end part of the rotating shaft 27 is formed in the connecting block 26, a hanging plate 32 in the vertical direction is arranged at a liquid discharge port of the separating cylinder 7 at the first connecting part, a separation cavity is formed between the hanging plate 32 and the inner side wall of the liquid discharge port, an upward extending open groove 31 is formed in the bottom end of the hanging plate 32, two connecting columns 30 which are respectively positioned on two sides of the open groove 31 are arranged in the separation cavity, the connecting block 26 is in screw connection with the connecting columns 30, and the open groove 31 and the arc-shaped groove form a rotating space of the rotating shaft 27; a positioning groove 34 matched with the end part of the rotating shaft 27 is arranged on the inner side wall of the liquid outlet of the separating cylinder 7 at the second connecting part, and a boss 33 is arranged on the outer side wall of the separating cylinder 7 at the positioning groove 34; then do not need additional installing port, only can install through liquid eduction outlet department for the installation of pivot is more simple and convenient, and spare part is also less relatively simultaneously, so production efficiency is higher, and manufacturing cost is lower.

The filtering holes 16 on the filtering net 19 are conical holes with large outer parts and small inner parts, the size of the hole on the outer circumferential wall is larger than that of the hole on the inner circumferential wall, particulate matters can be filtered on the filtering net to the greatest extent so as to be conveyed to the extrusion end by a screw rod for extrusion and dehydration, meanwhile, the filtering holes also enable waste water to be filtered out more easily, a cleaning device also enables the filtering holes to be cleaned more easily, and the situation that the filtering holes are blocked can be effectively prevented.

The liquid discharge port is a square opening, the length of the long side of the square opening is equal to the diameter of the filter screen 19, and the length of the short side of the square opening is equal to the axial length of the filter screen 19; the internal diameter of the sieve 19 is equal to the external diameter of the delivery rotor 6; when the filter screen 19 is installed, the filter screen is directly pushed into the separating cylinder 7 from the liquid outlet, the assembling stroke is short, the installation is convenient, and the assembling efficiency can be greatly improved.

The inner wall of the separating cylinder 7 is provided with an inner recess 35 for accommodating the filter screen 19, and the lower part of the inner recess 35 is overlapped with the liquid outlet; the filter screen 19 is rotationally fitted on the indent 35; the filter screen 19 has better stability, and the axial sliding is not easy to occur in the using process, thereby ensuring the solid-liquid separation effect and reducing the probability of particles entering a sewer; and the inner recess 35 is easy to process, so that the production cost can be reduced.

In another embodiment, the self-cleaning device comprises a cleaner 23 and a rotating shaft 27, the cleaner 23 is fixedly connected with the rotating shaft 27, two ends of the rotating shaft 27 are rotatably connected to the separating cylinder 7, the cleaner 23 is a brush, and the free end of the brush is positioned in the filtering hole 29; one end of the rotating shaft 27 is connected with the driving device 4 through a transmission mechanism; the preparation cost of the brush is low, the brush can be directly obtained from the market, the purchase is convenient, and the brush has a cleaning effect on the peripheral surface of the whole filter screen 19 when rotating, so that the peripheral surface of the filter screen 19 is not easy to scale, and the comprehensive energy consumption for long-term use is reduced.

After the kitchen waste is crushed by the waste crushing device 3, a solid-liquid mixed liquid enters the separating cylinder 7 from the feed end 8 of the separating cylinder 7 through a pipeline, the mixed liquid firstly falls into the conveying rotor 6 to be slightly stopped, most of water is separated by the filter screen 19 and then flows to the liquid discharge port of the separating cylinder 7, most of large particles are separated at the liquid discharge port, the mixed liquid is carried to the extrusion end by the conveying rotor 6, the mixed liquid is extruded and dehydrated under the action of the extrusion strips 17 and the convex ribs 18 on the extrusion head 9, and the water obtained by extrusion and dehydration can also flow backwards to the liquid discharge port and is discharged into a sewer pipeline; and at the initial of starting, the dysmorphism tooth that the profile of tooth groove formed on the inside wall of separating drum 7 inside wall has an initial effort to large granule rubbish, extrudees the large granule rubbish and forms the tiny particle rubbish earlier one step to make things convenient for the propelling movement to the screw rod front end more. After the small-particle garbage is extruded by the extrusion head, the small-particle garbage is discharged from a solid discharge port of the dewatering device, and wastewater is discharged into a sewer pipeline from the water outlet device.

The above description is only a preferred embodiment of the present invention, and it should not be understood that the scope of the present invention is limited thereby, and it should be understood by those skilled in the art that various other modifications and equivalent arrangements can be made by applying the technical solutions and concepts of the present invention within the scope of the present invention as defined in the appended claims.

Claims

1. A solid-liquid separation device is characterized in that: comprises a driving mechanism (4), a separating cylinder (7), a screw head cover (10) and a screw; the separation cylinder (7) is provided with a feeding end (8) and a liquid discharge port; one end of the screw head cover (10) is connected with one end of the separating cylinder (7), and the other end of the screw head cover (10) is a solid discharge port; the driving mechanism (4) is connected to one end, far away from the screw head cover (10), of the separating cylinder (7), and the driving mechanism (4) is in transmission connection with the screw; the screw is rotationally connected in the separating cylinder (7), one end of the screw is connected with the driving mechanism (4), and the other end of the screw is positioned in the screw head cover (10); a filtering structure is also arranged in the separating cylinder (7); the feed end (8) is offset from the liquid discharge opening.

2. The solid-liquid separation apparatus according to claim 1, characterized in that: the screw pitch of one end of the screw rod to the screw pitch of the other end of the screw rod is a gradually reduced screw pitch which is gradually reduced.

3. The solid-liquid separation apparatus according to claim 2, characterized in that: the screw comprises a conveying rotating body (6) and an extrusion head (9), one end of the conveying rotating body (6) is connected with the driving mechanism (4), and the other end of the conveying rotating body (6) is connected with the extrusion head (9); the screw thread on the conveying rotating body (6) extends to the end part of one end of the extrusion head (9) far away from the conveying rotating body (6); the outer side wall of the extrusion head (9) is also provided with at least one extrusion strip (17), and the extrusion strip (17) extends to the end part of one end of the extrusion head (9) far away from the conveying rotating body (6).

4. The solid-liquid separation apparatus according to claim 3, characterized in that: the extrusion head (9) is a hollow cone, the outer circumferential surface of one end of the conveying rotator (6) close to the solid discharge port is an outer conical surface (15), and the inner side wall of the extrusion head (9) is an inner conical surface (16) matched with the outer conical surface (15) of the conveying rotator (6).

5. The solid-liquid separation apparatus according to claim 3, characterized in that: the outer circumferential wall of the conveying rotating body (6) below the feeding end (8) is provided with an inwards concave groove (22); the screw is characterized in that the number of threads on the outer peripheral wall of the screw is two, one thread is a thread I (20), the starting position of the thread I (20) is positioned on the groove (22), and the ending position of the thread I (20) is positioned at the end part of the extrusion head (9) far away from one end of the conveying rotating body (6); the other thread is a thread II (21), the starting position of the thread II (21) is positioned at one end of the conveying rotating body (6), and the ending position of the thread II (21) is positioned at the end part of the extrusion head (9) far away from one end of the conveying rotating body (6); the diameters of the top circles of the screw thread I (20) and the screw thread II (21) are always the same; the extrusion strip (17) is located at a position between the thread I (20) and the thread II (21).

6. The solid-liquid separation apparatus according to any one of claims 1 to 5, characterized in that: a plurality of axially extending convex ribs (18) are arranged on the inner side wall of the screw head cover (10) matched with the screw.

7. The solid-liquid separation apparatus according to claim 6, characterized in that: the ribs (18) comprise short ribs and long ribs which are arranged alternately.

8. The solid-liquid separation apparatus according to claim 1, characterized in that: the other end of the screw head cover (10) is provided with a baffle (13) used for limiting the falling direction of the solid residue at the solid discharge port.

9. The solid-liquid separation apparatus according to claim 8, characterized in that: one end of the baffle (13) is arc-shaped plate-shaped and is positioned above the solid discharge port, and the other end of the baffle (13) is screwed on the screw head cover (10); and a vertically downward material distributing plate (12) is arranged on the inner surface of the baffle plate (13), and the lower end of the material distributing plate (12) is positioned in front of the solid discharge port.

10. The solid-liquid separation apparatus according to claim 1, characterized in that: the filter structure is located above the liquid discharge port.

11. The solid-liquid separation apparatus according to claim 10, characterized in that: the filtering structure is an annular filter screen (19); the liquid discharge port is a square opening, the length of the long side of the square opening is more than or equal to the diameter of the filter screen (19), and the length of the short side of the square opening is more than or equal to the axial length of the filter screen; the inner diameter of the filter screen (19) is equal to the outer diameter of the conveying rotator (6), and the filter screen (19) is sleeved on the periphery of the conveying rotator (6).

12. The solid-liquid separation apparatus according to claim 11, characterized in that: the separating cylinder (7) is also provided with a cleaning device for cleaning the filter screen (19).

13. The utility model provides a kitchen garbage disposer, includes rubbish reducing mechanism (3), its characterized in that: the solid-liquid separation device further comprises the solid-liquid separation device as claimed in any one of claims 1 to 12, wherein an outlet of the garbage crushing device (3) is communicated with the feeding end (8) through a pipeline, a liquid discharge port is connected with a drain pipe, and sewage generated after dehydration is discharged through the liquid discharge port.

14. The kitchen waste disposer of claim 13, wherein: the garbage crusher is characterized in that a three-way reversing valve is arranged on the pipeline, one connector of the three-way reversing valve is communicated with an outlet of the garbage crushing device (3), one connector of the three-way reversing valve is communicated with the feeding end (8), and the rest connector of the three-way reversing valve is communicated with the drain pipe.