CN211808018U - Multi-stage spiral dehydrator for garbage classification resource regeneration equipment - Google Patents

Abstract

The utility model discloses a multistage spiral dehydrator for waste classification resource regeneration equipment, which comprises a frame, a feeding device, a first-stage dehydrating device, a second-stage dehydrating device and a cake pressing machine, wherein the feeding device is arranged at the upper end of the frame and comprises a feeding box, a semi-filtering conveying belt assembly arranged in the feeding box and a squeezing roller for squeezing and dehydrating, the squeezing roller is arranged above the semi-filtering conveying belt assembly, a water filtering opening is obliquely arranged at the inlet of the feeding box and is provided with a filtering net, and the filtering net is provided with a filtering net and a sewage pipeline I; the second stage dehydration device of the first stage dehydration device respectively treats the garbage separated from the upper part and the lower part of the semi-filtering conveyor belt component. The utility model discloses separate peel and fluid wheaten food rubbish and dewater alone, eliminated its interact or obstruct each other, be favorable to improving the sufficiency of dehydration efficiency and dehydration.

Description

Multi-stage spiral dehydrator for garbage classification resource regeneration equipment

Technical Field

The utility model relates to a material dehydration, filtration technical field especially relate to a multistage spiral hydroextractor that is arranged in waste classification resource regeneration to equip.

Background

The dehydrator is that this kind of hydroextractor of one of the indispensable equipment in organic refuse processing system such as kitchen garbage, gardens organic garbage mainly uses the spiral dehydrator more, and its specific working process is through the material along axial forward under the spiral rotating vane promotes, and the in-process material that advances receives the effect of the pitch of change to form the extrusion force, makes the material carry out mechanical dehydration under pressure, and moisture can only pass through the screen cloth and discharge at water outlet department, and the material after the dehydration discharges at the discharge gate department. However, the existing spiral dewatering machine has a simple structure, insufficient dewatering and low dewatering rate, chinese patent No. CN206264414U is granted, and the utility model with patent application No. 201621374212.7 discloses a garbage treatment device with a multistage spiral dewatering device, which utilizes the change of the pitch of the spiral blades and the change of the screw to gradually compress the extrusion space to form a multistage dewatering mechanism, although the dewatering rate and the dewatering effect are improved to a certain extent, the dewatering mode of the garbage treatment device of the multistage spiral dewatering device is not changed, and the kitchen garbage can not be filtered, and the separation of the peel and the fluid cooked wheaten food garbage can not be respectively dewatered by different modes, and the phenomenon that the dewatering rate is not high, the speed of the spiral rotation and the water content of the material affect, and the dryness of the dewatered material is not uniform can still exist. Therefore, it is necessary to make prior art, and the inventors made technical development and research thereon for a long time.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a multistage spiral hydroextractor for among waste classification resource regeneration equipment realizes particularly through following technical scheme:

the utility model relates to a multistage spiral hydroextractor for among rubbish classification resource regeneration equipment include frame, feedway, first order dewatering device, second level dewatering device and cooked flake wrapping machine, feedway locates the frame upper end and its half-type filtration conveyer belt subassembly that includes the pan feeding case, locates in the pan feeding case and presses the roller for squeezing the dehydration, press the roller and arrange half-type filtration conveyer belt subassembly top, the entrance slope of pan feeding case sets up and is equipped with the drainage mouth, and drainage mouth is equipped with filter screen and sewage pipeline I;

the first-stage dehydration device feed inlet is connected with the first discharge gate of pan feeding box, and the first-stage dehydration device discharge gate is connected with the feed inlet of cooked flake wrapping machine, and first-stage dehydration device's drain is connected with second grade dehydration device pan feeding mouth, and second grade dehydration device's discharge gate is connected with the feed inlet of cooked flake wrapping machine, and the second grade dehydration device drain is connected with sewer line I, the second grade dehydration device feed inlet still is connected with pan feeding box second discharge gate through the elephant trunk, pan feeding box second discharge gate is located half formula filter conveyer belt subassembly below.

Further, a third-stage dehydration device is arranged at the tail end of the sewage pipeline I, and comprises an outer cylinder, an inner cylinder rotationally connected with the outer cylinder along the axis of the outer cylinder, a spiral lifting piece rotationally connected with the inner cylinder along the axis of the inner cylinder, a driving device used for driving the spiral lifting piece to rotate, and a selective locking mechanism, wherein the selective locking mechanism can lock the spiral lifting piece and the inner cylinder to be fixedly connected or can enable the inner cylinder and the outer cylinder to be fixedly connected; the sewage temporary storage device is characterized in that dewatering holes are formed in the side wall of the inner barrel, an inner barrel discharge hole is formed in the upper portion of the side wall of the inner barrel, a water outlet is formed in the hollow lower portion of the outer barrel, and a sewage temporary storage bin is defined by the inner wall of the outer barrel and the outer wall of the inner barrel.

Further, the selection locking mechanism comprises a sleeve arranged at the upper end of the inner cylinder, a right-angle crank arm rotationally connected with the sleeve along the axis of the sleeve in a single degree of freedom, and a driving element used for driving the right-angle crank arm to turn over, wherein a clamping part is arranged at the free end of the right-angle crank arm, and clamping parts matched with the clamping part are respectively arranged on the inner cylinder and the spiral lifting piece.

Furthermore, the dewatering holes are transversely arranged along the side wall of the inner barrel, the cross section of each dewatering hole is trapezoidal, and the size of an inward opening of each dewatering hole is smaller than that of an outward opening; the water outlet is connected with a sewage pump through a pipeline.

Further, first order dewatering device locates half formula and filters conveyer belt subassembly rear end, second level dewatering device locates half formula and filters conveyer belt subassembly below, first order dewatering device and second level dewatering device rear end are located to the cooked flake wrapping machine.

Furthermore, the inside ejection of compact auxiliary roller that is used for stirring the material that is located half formula filtration conveyer belt subassembly upper end that is located of pan feeding case still is equipped with, ejection of compact auxiliary roller outside is equipped with dials material portion, ejection of compact auxiliary roller locates pan feeding case first discharge gate one side and dials material portion and press the roller tangent.

Further, a crank connecting rod assembly used for enabling the filter screen to shake is further arranged at the water filtering opening and comprises a driving motor, a crank, a roller frame and a connecting rod, one end of the connecting rod is connected with the crank, the other end of the connecting rod is connected with the roller frame, the roller frame is connected with the connecting rod in a sliding mode, an elastic recovery element is arranged between the roller frame and the connecting rod, and the connecting rod penetrates into the sewage pipeline I.

Furthermore, the semi-filter conveyer belt assembly comprises a driving wheel, a driven wheel, a transmission chain sleeved on the driving wheel and the driven wheel, chain plates arranged on the upper half circumference of the transmission chain, and filter holes arranged on the chain plates, and the semi-filter conveyer belt assembly further comprises a supporting device used for supporting the chain plates.

Further, first order dewatering device and second level dewatering device are spiral hydroextractor, and first order dewatering device's helical blade pitch is greater than second level dewatering device's helical blade pitch, and the diameter of crossing the filtration pore on first order dewatering device's the screen cloth is greater than the diameter of crossing the filtration pore on second level dewatering device's the screen cloth.

The utility model has the advantages that: half formula filter belt subassembly can be in when conveying material squeeze roller combined action down and carry out elementary dehydration and have taken off most moisture in the rubbish with squeezing filterable mode to rubbish, avoid most moisture to lead to among first order dewatering device, the second level dewatering device rubbish water content surplus insufficient dehydration that causes along with rubbish together gets into among first order dewatering device, the second level dewatering device. Secondly half formula filters conveyer belt subassembly can also be spread out fluid wheaten food rubbish and peel rubbish simultaneously and separate and enter into different dewatering device respectively squeezing the extrusion fluid wheaten food rubbish of roller with the peel rubbish and dewater, adopts different spiral dewatering device pertinence's processing respectively to peel and fluid wheaten food rubbish, has avoided being similar to peel and fluid wheaten food rubbish and has influenced each other or obstruct each other, is favorable to improving the sufficiency of dehydration efficiency and dehydration. Other advantageous effects of the present invention will be further described with reference to the following specific examples.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of a third stage dewatering configuration;

FIG. 3 is a schematic view of the inner barrel structure;

FIG. 4 is an installation view of a crank link assembly and a sewage conduit I;

fig. 5 is a schematic structural view of a supporting device for supporting the connecting plate.

Detailed Description

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in the figure: the utility model relates to a multistage spiral hydroextractor for among rubbish classification resource regeneration equipment include frame 1, feedway 2, first order dewatering device 3, second level dewatering device 4 and cooked flake wrapping machine 5, feedway 2 is located frame 1 upper end and it includes into feed box 6, locates half formula filtration conveyer belt subassembly 7 and the squeeze roll 8 that is used for squeezing the dehydration in feed box 6, squeeze roll 8 arranges in half formula filtration conveyer belt subassembly 7 top, the entrance slope of feed box 6 sets up and is equipped with drainage mouth 9, drainage mouth 9 department is equipped with filter screen and sewage pipeline I10; the feed inlet of the first-stage dewatering device 3 is connected with the first discharge port of the feeding box 6, the discharge port of the first-stage dewatering device 3 is connected with the feed inlet of the cake pressing machine 5, the drain outlet of the first-stage dewatering device 301 is connected with the feed inlet of the second-stage dewatering device 4, the discharge port of the second-stage dewatering device 4 is connected with the feed inlet of the cake pressing machine 5, the drain outlet 401 of the second-stage dewatering device is connected with a sewage pipeline I10, the feed inlet of the second-stage dewatering device 4 is further connected with the second discharge port of the feeding box 6 through a chute or a funnel 15, and the second discharge port of the feeding box 6 is located below the half-type filtering and. Further, the semi-filter conveyer belt assembly 7 includes a driving wheel 701, a driven wheel 702, a transmission chain sleeved on the driven wheel 702 of the driving wheel 701, and a chain plate 703 arranged on the upper half of the transmission chain, wherein the chain plate 703 is provided with a filter hole (not shown in the figure), for effective squeezing force between the chain plate 703 and the squeezing roller 8, a supporting device 11 for supporting the chain plate 703 is further arranged at the lower end of the chain plate 703, and the supporting device 11 is mounted on the frame 1 and is arranged between the upper half and the lower half of the transmission chain. Of course, the half-type filtering conveyer belt assembly 7 of the present invention may also adopt other forms, such as a common steel mesh belt conveyor.

When the garbage squeezing device is used, kitchen garbage is manually guided into the feeding box 6, an inlet of the feeding box 6 is obliquely arranged, the garbage flows downwards along the inclined slope, the garbage can be fully dispersed when rolling downwards, sewage is discharged into the sewage pipeline I10 from the water filtering port 9 when flowing downwards through the filter screen, the garbage which is filtered to remove the sewage flows onto the chain plate 703 of the half-type filtering conveyer belt assembly 7 under the action of gravity and the pushing of garbage at the front end, the garbage such as fruit peels, vegetable leaves and fluid wheaten food which is filtered to remove the sewage is squeezed by the squeezing roller 8, most of moisture in the squeezed garbage is subjected to primary dehydration, the water removed by the garbage and the fluid wheaten food garbage in the garbage enter the second-stage dehydration device 4 through the filtering holes in the chain plate 703, and the garbage which is squeezed and dehydrated on the upper portion of the chain plate 703 enters the first-stage dehydration device 3. Further, garbage such as fruit peels, vegetable leaves and the like dehydrated by the first-stage dehydration device 3 enters the cake pressing machine 5 for final dehydration, and sticky slurry with mixture of particles, sewage and the like and the garbage flowing in from the filtering holes of the chain plate 703, which are dehydrated by the first-stage dehydration device 3, enter the second-stage dehydration device 4. The second level dewatering device 4 dewaters only the viscous slurry garbage mixed with particles, sewage and the like, and because the garbage such as fruit peel does not exist to obstruct the dehydration, the second level dewatering device 4 can dewater the water in the garbage more quickly. The garbage extruded from the discharge port of the second-stage dehydration device 4 is also fed into the cake pressing machine 5 for final drainage, and the sewage containing small particles which is separated out is discharged from the sewage discharge port 401 of the second-stage dehydration device and enters the sewage pipeline I10. Thus, different garbage is placed in different dehydration devices, and the mutual influence in the dehydration process is avoided. The utility model discloses the transformation ratio has multistage spiral dewatering device's refuse handling installation in traditional single mode dehydration and can carry out organic comprehensive processing to kitchen rubbish with a plurality of modes such as filtration, squeeze, extrusion, and the dehydration is fast and dewater fully thoroughly, and dewatering effect is good.

Further, the first and second dewatering devices 3 and 4 may be provided as screw type dewaterers in order to achieve a better and more efficient dewatering of the viscous sludge waste containing a large amount of dough pieces or particles by the second dewatering device 4. More specifically, the pitch of the spiral blade of the first stage dehydration device 3 is greater than that of the spiral blade of the second stage dehydration device 4, the diameter of the filtering hole on the screen of the first stage dehydration device 3 is greater than that of the filtering hole on the screen of the second stage dehydration device 4, and the pitch of the spiral blade of the second stage dehydration device 4 can be designed to be about 10cm-20 cm.

In this embodiment, the end of the sewage pipeline i 10 is further connected with a third stage dewatering device 12, the third stage dewatering device 12 includes an outer cylinder 121, an inner cylinder 122 rotatably connected to the outer cylinder 121 along an axis of the outer cylinder 121, a screw lifting member 123 rotatably connected to the inner cylinder 122 along an axis of the inner cylinder 122, and a driving device for driving the screw lifting member 123 to rotate, and further includes a selective locking mechanism 13, and the selective locking mechanism 13 can lock the screw lifting member 123 and the inner cylinder 122 to be fixedly connected or can lock the inner cylinder 122 and the outer cylinder 121 to be fixedly connected; the side wall of the inner cylinder 122 is provided with dewatering holes 1223, the upper part of the side wall of the inner cylinder 122 is provided with a discharge hole of the inner cylinder 122, the hollow lower part of the outer cylinder 121 is provided with a water discharge hole, and the inner wall of the outer cylinder 121 and the outer wall of the inner cylinder 122 enclose a sewage temporary storage bin. To facilitate the screw lifting 123, the inner cylinder 122 is divided into a first inner cylinder 1221 and a second inner cylinder 1222, and the first inner cylinder is fixedly connected with the second inner cylinder through a bolt. The driving device can be driven by a motor belt or a gear, and can be separately arranged and is already in the prior art, and is not shown in the figure and is not described again. Further, the inner cylinder 122 may be supported inside the outer cylinder 121 by a bearing, and the screw lifter 123 may be supported inside the inner cylinder 122 by a bearing, similarly, or may be directly fitted to both end portions of the inner cylinder 122. Since the garbage collected in the sewage pipeline I10 is from the water filtering port 9 of the feeding box 6 and the sewage discharge port 401 of the second-stage dehydration device, the sewage with thin and turbid small particles which flows out is basically not dehydrated by the traditional spiral dehydrator, the sewage can be treated by the third-stage dehydration device 12. The specific process comprises the following steps: the thin and turbid sewage in the sewage pipeline I10 is discharged into the inner cylinder 122, the inner cylinder 122 and the screw lifting piece 123 are locked together by the locking mechanism 13 at the moment, and when the screw lifting piece 123 is driven by the driving device to rotate, the screw lifting piece 123 and the screw lifting piece rotate together along the axis of the outer cylinder 121, so that fine particle garbage in the thin and turbid sewage is retained in the inner cylinder 122, the sewage is placed in a sewage temporary storage bin, and the sewage is discharged through a water outlet at the lower part of the outer cylinder 121. The method is characterized in that a flow meter is used for monitoring or manual monitoring, when the monitored sewage is completely discharged, the vertical direction of the flow meter is almost zero, a driving device is stopped, the screw lifting piece 123 and the inner cylinder 122 are unlocked through the selection of the locking mechanism 13, so that the inner cylinder 122 and the outer cylinder 121 are locked to form a whole which does not rotate any more, and at the moment, the driving device is started again, so that the screw lifting piece 123 rotates to discharge the garbage in the inner cylinder 122 out of the inner cylinder 122 in a lifting mode. When the thin and turbid waste water in the waste water pipeline I10 enters the inner drum 122, the third stage dewatering device 12 is stationary.

Based on the above embodiments, in this embodiment, the dewatering holes 1223 of the inner cylinder 122 are transversely arranged along the sidewall of the inner cylinder 122 and have a trapezoidal cross section, and the inward opening size of the dewatering holes 1223 is smaller than the outward opening size; the water outlet is connected with a sewage pump through a pipeline. Just as mentioned above, solid or particle garbage in the dilute and turbid sewage from the sewage pipeline I10 is small in order to prevent the blockage, the cross section of the solid or particle garbage is set to be trapezoidal, and the sewage is matched with the sewage pump, so that the sewage can generate the effect similar to siphon, the sewage flow is accelerated while the sewage is discharged, the small impurities blocked in the dewatering holes 1223 are favorably washed by the sewage, the quick drainage is favorably realized, and the blockage of the dewatering holes 1223 is effectively avoided. Further, the selective locking mechanism 13 includes a sleeve disposed at the upper end of the inner cylinder 122, a crank arm 134 rotationally connected along the axis of the sleeve with a single degree of freedom, and a driving element 131 for driving the crank arm 134 to turn over, the free end of the crank arm 134 is provided with a clamping portion, and the inner cylinder 122 and the screw lifting member 123 are respectively provided with a buckling portion engaged with the clamping portion. The drive element 131 is preferably an electric motor; the latching portion may be a U-shaped latch 132 and the latching portion may be a protrusion 133 of the flat key structure. When the screw lifting piece 123 and the inner cylinder 122 need to be locked together, the motor is started to rotate forwards and is driven by the externally meshed gear set 135 to stop after the crank arm 134 rotates one hundred eighty degrees, and at the moment, the U-shaped clamping piece 132 rotates one hundred eighty degrees along with the crank arm 134 and then is clamped into the protrusion 133 to complete the locking of the two. When the inner cylinder 122 and the outer cylinder 121 need to be locked together, the motor rotates reversely and drives the crank arm 134 to rotate back one hundred eighty degrees through the externally engaged gear set 135, and then the rotation is stopped, and the other steps are the same as the process when the screw lifting piece 123 and the inner cylinder 122 need to be locked together.

In this embodiment, first order dewatering device 3 is located half formula and is filtered 7 rear ends of conveyer belt subassembly, second level dewatering device 4 is located half formula and is filtered 7 below of conveyer belt subassembly, first order dewatering device 3 and 4 rear ends of second level dewatering device are located to cooked flake wrapping machine 5. Above-mentioned first order dewatering device 3, second level dewatering device 4 are all when the screw dewaterer, adopt and arrange half formula filtration conveyer belt subassembly 7, first order dewatering device 3, second level dewatering device 4, the configuration each other between 5 four of cooked flake wrapping machines in this embodiment and can make things convenient for the turn down of material one-level to arrange to close, need not to add too much conveyer belt and just can connect it with the pipeline, simple structure.

In this embodiment, the feeding box 6 is further provided with an auxiliary discharging roller 14 for stirring the material at the upper end of the semi-filter conveyer belt assembly 7, the auxiliary discharging roller 14 is provided with a stirring portion 141 at the outside, and the auxiliary discharging roller 14 is arranged at one side of the first discharge hole of the feeding box 6 and the stirring portion 141 is tangent to the squeezing roller 8. The discharge auxiliary roller 14 can be arranged to remove the garbage at the tail end of the semi-filter conveyer belt assembly 7 out of the feed box 6 when the semi-filter conveyer belt assembly 7 is not used, and can also remove the garbage which is possibly stuck on the press roller 8.

In this embodiment, a crank link assembly 16 for shaking the filter screen is further disposed at the water filtering port 9, the crank link assembly 16 includes a driving motor 165, a crank 161, a roller 163, a roller frame 162, and a connecting rod 166 having one end connected to the crank 161 and the other end connected to the roller frame 162, the roller frame 162 is slidably connected to the connecting rod, an elastic restoring element 164 is disposed between the roller frame 162 and the connecting rod, and the connecting rod 166 penetrates into the sewage conduit i 10, the driving motor 165 and the crank 161 are disposed outside the sewage conduit i 10, when the driving motor 165 is activated during use, the connecting rod reciprocates under the driving of the crank 161, the roller frame 162 is obstructed by the inner wall of the sewage conduit i 10 and generates a cam-like structure under the action of the elastic restoring element 164, so that the bracket of the roller frame 162 reciprocates along the radial direction of the sewage conduit i 10, and the roller 163 does not support the filter screen to generate a beating effect when supporting the, can effectively prevent the blockage. To facilitate installation of the linkage 166, the sewer pipe I10 can be split into two sections, one of which is open and then threaded together.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (9)

1. The utility model provides a multistage spiral dewaterer for among waste classification resource regeneration equipment includes frame, feedway, first order dewatering device, second level dewatering device and cooked flake wrapping machine, its characterized in that: the feeding device is arranged at the upper end of the frame and comprises a feeding box, a semi-type filtering conveying belt assembly and a squeezing roller, wherein the semi-type filtering conveying belt assembly is arranged in the feeding box, the squeezing roller is used for squeezing and dewatering, the squeezing roller is arranged above the semi-type filtering conveying belt assembly, a water filtering opening is obliquely arranged at an inlet of the feeding box and is provided with a filtering net, and a sewage pipeline I is arranged at the filtering net opening; the first-stage dehydration device feed inlet is connected with the first discharge gate of pan feeding box, and the first-stage dehydration device discharge gate is connected with the feed inlet of cooked flake wrapping machine, and first-stage dehydration device's drain is connected with second grade dehydration device pan feeding mouth, and second grade dehydration device's discharge gate is connected with the feed inlet of cooked flake wrapping machine, and the second grade dehydration device drain is connected with sewer line I, the second grade dehydration device feed inlet still is connected with pan feeding box second discharge gate through the elephant trunk, pan feeding box second discharge gate is located half formula filter conveyer belt subassembly below.

2. The multistage screw dehydrator for use in waste classification resource recycling equipment of claim 1, wherein: the tail end of the sewage pipeline I is provided with a third-stage dehydration device, the third-stage dehydration device comprises an outer cylinder, an inner cylinder rotationally connected with the outer cylinder along the axis of the outer cylinder, a spiral lifting piece rotationally connected with the inner cylinder along the axis of the inner cylinder, a driving device used for driving the spiral lifting piece to rotate, and a selective locking mechanism, wherein the selective locking mechanism can lock the spiral lifting piece and the inner cylinder to be fixedly connected or can enable the inner cylinder and the outer cylinder to be fixedly connected; the sewage temporary storage device is characterized in that dewatering holes are formed in the side wall of the inner barrel, an inner barrel discharge hole is formed in the upper portion of the side wall of the inner barrel, a water outlet is formed in the hollow lower portion of the outer barrel, and a sewage temporary storage bin is defined by the inner wall of the outer barrel and the outer wall of the inner barrel.

3. The multistage screw dehydrator for use in garbage classification resource recycling equipment according to claim 2, wherein: the selective locking mechanism comprises a sleeve arranged at the upper end of the inner cylinder, a right-angle crank arm rotationally connected along the axis of the sleeve in a single degree of freedom, and a driving element used for driving the right-angle crank arm to turn over, wherein a clamping part is arranged at the free end of the right-angle crank arm, and clamping parts matched with the clamping parts are respectively arranged on the inner cylinder and the spiral lifting piece.

4. The multistage screw dehydrator for use in garbage classification resource recycling equipment according to claim 2 or 3, wherein: the dewatering holes are transversely arranged along the side wall of the inner barrel, the cross section of each dewatering hole is trapezoidal, and the size of the inward opening of each dewatering hole is smaller than that of the outward opening; the water outlet is connected with a sewage pump through a pipeline.

5. The multistage screw dehydrator for use in waste classification resource recycling equipment of claim 1, wherein: the first-stage dewatering device is arranged at the rear end of the half-type filtering conveying belt component, the second-stage dewatering device is arranged below the half-type filtering conveying belt component, and the cake pressing machine is arranged at the rear ends of the first-stage dewatering device and the second-stage dewatering device.

6. The multistage screw dehydrator for use in waste classification resource recycling equipment of claim 1, wherein: the inside ejection of compact auxiliary roller that is used for stirring the material that is located half formula filtration conveyer belt subassembly upper end that is located of pan feeding case, ejection of compact auxiliary roller outside is equipped with dials material portion, ejection of compact auxiliary roller is located pan feeding case first discharge gate one side and dials material portion and press the roller tangent.

7. The multistage screw dehydrator for use in waste classification resource recycling equipment of claim 1, wherein: the filter screen shaking device is characterized in that a crank connecting rod assembly used for shaking the filter screen is further arranged at the water filter opening and comprises a driving motor, a crank, an idler wheel frame and a connecting rod, one end of the connecting rod is connected with the crank, the other end of the connecting rod is connected with the idler wheel frame, an elastic recovery element is arranged between the idler wheel frame and the connecting rod in a sliding connection mode, and the connecting rod penetrates into the sewage pipeline I.

8. The multistage screw dehydrator for use in waste classification resource recycling equipment of claim 1, wherein: the semi-type filtering conveyer belt component comprises a driving wheel, a driven wheel, a transmission chain sleeved on the driving wheel and the driven wheel, chain plates arranged on the upper half circumference of the transmission chain, and filtering holes arranged on the chain plates, and further comprises a supporting device for supporting the chain plates.

9. The multistage screw dehydrator for use in garbage classification resource recycling equipment according to claim 1 or 2, wherein: the first-stage dewatering device and the second-stage dewatering device are both spiral dewaterers, the screw blade pitch of the first-stage dewatering device is larger than that of the second-stage dewatering device, and the diameter of a filtering hole in a screen of the first-stage dewatering device is larger than that of a filtering hole in a screen of the second-stage dewatering device.

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