CN210718550U

CN210718550U - Screw extrusion dewaterer

Info

Publication number: CN210718550U
Application number: CN201921481069.5U
Authority: CN
Inventors: 宋淼; 刘洋; 方小云; 邓吉粒; 瞿忠卫; 洪超颖
Original assignee: Endurance & Mes Chongqing Environment Co ltd; Chongqing Endurance Industry Stock Co Ltd
Current assignee: Chongqing Naide Ecological Technology Co ltd; Chongqing Endurance Industry Stock Co Ltd
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-06-09
Anticipated expiration: 2029-09-06

Abstract

The utility model provides a spiral extrusion dehydrator, which comprises a power mechanism, a horizontally arranged spiral extrusion mechanism and a filter cartridge mechanism sleeved outside the spiral extrusion mechanism, wherein the spiral extrusion mechanism comprises a rotating shaft connected with the output end of the power mechanism and an extrusion spiral fixed outside the rotating shaft; the whole filter cylinder mechanism is cylindrical, and a feed inlet is formed in one end side wall of the filter cylinder mechanism; the extrusion screw comprises at least two sections of helical blades which are separately arranged and are sequentially arranged at intervals along the axial direction of the rotating shaft. The utility model is provided with at least two sections of separated helical blades outside the rotating shaft and the helical blades are arranged at certain intervals, so that even if the quantity of kitchen waste is less or the feeding speed is slower, the dehydration of one-time dehydration quantity suddenly increased caused by mutual extrusion in the kitchen waste can be promoted at the intervals; meanwhile, the kitchen waste in a single pitch of the spiral blade positioned at the downstream of the interval can be sufficiently measured, and the extrusion effect is ensured.

Description

Screw extrusion dewaterer

Technical Field

The invention relates to the technical field of solid-liquid separation, in particular to a spiral extrusion dehydrator for treating kitchen waste.

Background

As the population of China is large and the catering industry is developed, the requirement for treating the kitchen waste is also huge. Due to the particularity of the kitchen waste, that is, a large amount of water is contained in the kitchen waste, if the kitchen waste is directly discharged or buried, serious environmental pollution is caused, and meanwhile, the kitchen waste with high water content cannot be directly recycled, so that the kitchen waste treatment process needs to include a dehydration step for the kitchen waste to realize solid-liquid separation of the kitchen waste, and further, the kitchen waste is convenient to transport and recycle.

The patent document with the publication number of CN108656604A provides a kitchen waste squeezing dehydrator, which comprises a box body, wherein the lower end of the box body is fixedly arranged on an installation support, one side of the upper end of the box body is provided with an opening in a vertical penetrating manner, the inner cavity of the box body is provided with a waste dehydration mechanism, the waste dehydration mechanism is just opposite to the opening and is provided with a waste inlet, one end of the lower surface of the box body is arranged in a downward inclined manner, the lower end of the lower surface of the box body is provided with a water outlet, one end of the waste dehydration mechanism, which is far away from the waste inlet, is provided with a waste outlet, the waste outlet is positioned on the outer side of the box body, the waste dehydration mechanism comprises a dehydration cylinder fixedly arranged in the box body, the waste inlet is arranged on the dehydration cylinder, the outer side, the other end passes the box passes through the bearing and is connected the setting with the installing support, rubbish extrusion mechanism include with the extrusion stem of the coaxial setting of dehydration cylinder, the extrusion stem is close to the one end diameter of rubbish entry is less than the other end, the outside winding that the extrusion stem is located the part in the box has the extrusion spiral, the extrusion spiral external diameter is unanimous, the extrusion stem tip pass through the bearing with the box is connected the setting, and the main aspects passes the box and outwards extends. Above-mentioned press hydroextractor is at the during operation, power input mechanism moves and drives the stripper bar and rotate, the stripper bar drives extrusion screw and rotates, extrusion screw drives the rubbish that gets into in the dewatering cylinder to the direction motion that is close to the stripper bar main aspects, utilize extrusion screw to extrude rubbish, reduce the rubbish volume, extrude the water in the rubbish simultaneously, the water after extruding flows to the box through the apopore in, the box lower extreme is provided with the outlet, the slope of box lower surface sets up, can concentrate the outflow to the water of extruding, convenient processing. However, the above prior art has the following disadvantages: when the amount of the kitchen waste to be treated each time is small or the feeding speed of the kitchen waste is low, the kitchen waste is directly pushed out under the action of an extrusion screw after entering a dewatering cylinder, so that the purpose of extrusion cannot be effectively realized, and further the dewatering effect is not ideal enough, therefore, when the kitchen waste is actually treated, the treatment is started until the amount of the kitchen waste reaches a certain degree, on one hand, the treatment efficiency is limited, and on the other hand, in the waiting process of accumulating the kitchen waste, the kitchen waste can be rapidly rotted due to the fact that the kitchen waste cannot be treated for a long time, and therefore a large amount of harmful bacteria are bred, and the surrounding environment is threatened; and the kitchen waste needs to be quickly put into the filter cylinder, and is easy to overflow due to slight improper operation.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a spiral extrusion dehydrator which is used for solving the problem that effective extrusion dehydration cannot be realized when the quantity of kitchen waste is small or the feeding speed is low in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

screw extrusion hydroextractor, including power unit, the screw extrusion mechanism and the cover of level setting strain a section of thick bamboo mechanism at the screw extrusion mechanism outside, wherein:

the spiral extrusion mechanism comprises a rotating shaft connected with the output end of the power mechanism and an extrusion spiral fixed outside the rotating shaft; the whole filter cylinder mechanism is cylindrical, and a feed inlet is formed in one end side wall of the filter cylinder mechanism; the extrusion screw comprises at least two sections of helical blades which are arranged in a separated mode and are sequentially arranged at intervals along the axial direction of the rotating shaft.

Compared with the prior art, the invention has the following beneficial effects: because at least two sections of separated helical blades are arranged outside the rotating shaft, and a certain distance is arranged between each section of helical blades in the axial direction of the rotating shaft, even if the amount of kitchen waste is small or the feeding speed is slow, part of kitchen waste which enters the filter cylinder firstly can temporarily stay when running to the interval between the two adjacent sections of helical blades and can move forwards again under the pushing action of the kitchen waste which arrives subsequently, on one hand, at the interval, the kitchen waste which arrives successively can be mutually extruded to generate dehydration with suddenly increased dehydration amount, and the dehydration effect is ensured; meanwhile, the kitchen waste in a single pitch of the spiral blade positioned at the downstream of the interval can be sufficiently measured, and the extrusion effect is further ensured.

Drawings

Fig. 1 is an overall perspective view of the present invention.

Fig. 2 is a schematic view of the internal structure of the present invention.

Figure 3 is a schematic view of the connection of the end cartridge of the present invention.

Fig. 4 is a schematic structural diagram of the screw extrusion mechanism of the present invention.

FIG. 5 is a schematic view of the feed inlet of the present invention.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the embodiments.

As shown in fig. 1 and 2, the present invention provides a screw extrusion dehydrator, including a power mechanism, a horizontally disposed screw extrusion mechanism, and a filter cartridge mechanism sleeved outside the screw extrusion mechanism, wherein:

a box body structure is further arranged outside the filter cartridge mechanism, the box body structure is formed by surrounding an upper box body 10 and a lower box body 11 and is fixed through bolts, a plurality of vertical partition plates 13 which are arranged along a horizontal straight line are arranged inside the upper box body 10 and the lower box body 11, semicircular notches are arranged on the vertical partition plates 13, a first opening 12 is arranged at the upper part of the upper box body 10, a second opening 14 and a third opening 15 for a spiral extrusion mechanism to pass through/be installed are respectively arranged on two opposite side walls of the box body structure, the second opening 14 and the third opening 15 are both positioned on the horizontal straight line distributed by the plurality of vertical partition plates 13, a liquid loading groove 16 for collecting liquid waste is arranged inside the lower box body 11, and a water outlet 17 capable of being connected with a water drain pipe is arranged at the bottom of the liquid loading groove 16; a plurality of access holes 18 are also formed in the side wall and the top of the upper box body 10;

the whole filter cylinder mechanism is cylindrical, and a feed inlet 20 is formed in one end side wall of the filter cylinder mechanism; the filter cartridge mechanism comprises a main filter cartridge and a tail filter cartridge 22, the main filter cartridge is a cylindrical structure consisting of a plurality of sections of main filter cartridges 21 and with two open ends, a discharge port is formed in one end, away from a feed port 20, of the main filter cartridge, and the plurality of sections of main filter cartridges 21 are respectively fixed on a vertical partition plate 13 in a box body structure through flange structures, as shown in fig. 5, the feed port 20 is a rectangular cylinder structure which is fixedly connected to one end of the main filter cartridge and is installed in a first opening 12, and the arrangement can avoid the kitchen waste from being splashed outside the filter cartridge mechanism when the kitchen waste is fed; the tail filter cylinder 22 is connected to one end of the main body filter cylinder far away from the feed inlet 20 in an axially adjustable manner through a telescopic screw rod mechanism and is positioned inside the main body filter cylinder, the outer diameter of the tail filter cylinder 22 is matched with the inner diameter of the main filter cylinder 21, and the inner diameter of the tail filter cylinder 22 is gradually reduced in a direction far away from the feed inlet 20; as shown in fig. 3, preferably, a flange structure is also arranged at one end of the tail filter cartridge 22, which is away from the main filter cartridge 21, the screw mechanism includes a screw 241 and nuts 242 which are sleeved on the screw 241 and respectively matched with each flange structure, the depth of the tail filter cartridge 22 inserted into the main filter cartridge 21 can be adjusted by adjusting the nuts 242, and then the function of adjusting the discharging speed is achieved, that is, when the amount of discharged solid waste is large, the tail filter cartridge 22 can be adjusted to be away from the feed inlet 20, so that the inner diameter of the end of the main filter cartridge 21 is increased, and the solid waste is prevented from being fouled at the tail filter cartridge 22; when the discharge amount of the solid waste is small, the tail filter cylinder 22 is adjusted towards one end close to the feed port 20, so that the inner diameter of the tail end of the main filter cylinder 21 can be reduced, and a better extrusion effect can be ensured;

the spiral extrusion mechanism comprises a rotating shaft 30 connected with the output end of the power mechanism and an extrusion spiral fixed outside the rotating shaft 30; as shown in fig. 2, preferably, in order to realize the extrusion, the rotating shaft 30 includes a first connecting section 301, a reducing section 302, a reducing section 303 and a second connecting section 304, the reducing section 303 is located at an end of the rotating shaft 30 far from the feed port 20, an outer diameter of the reducing section 302 is gradually increased in a direction far from the feed port 20, the first connecting section 301 and the second connecting section 304 at two ends of the rotating shaft 30 are respectively installed at the second opening 14 and the third opening 15 of the box structure through a bearing mechanism and a shaft sealing mechanism, and one end of the first connecting section 301 further passes through the second opening 14 and extends to the outside of the box structure, wherein the bearing mechanism and the shaft sealing mechanism can both adopt the prior art, and simultaneously ensure a good sealing effect on the premise of ensuring that the rotating shaft 30 can freely rotate, so as to avoid the sewage discharged from the kitchen waste in the filter cartridge from leaking from the second opening 14, and avoid the bearing mechanism to be polluted; by arranging the reducing section 302, in the direction far away from the feed inlet 20, the gap between the rotating shaft 30 and the inner wall of the main filter cylinder is gradually reduced, so that the volume of the kitchen waste is compressed, and the purpose of squeezing and dewatering is realized; in addition, the inner diameter of the main body filter cylinder can be gradually reduced, and the whole rotating shaft 30 is a fixed-diameter shaft, so that the aim of gradually reducing the gap between the rotating shaft 30 and the inner wall of the main body filter cylinder can be fulfilled;

as shown in fig. 2 and 4, the extrusion screw is disposed on the outer wall of the reducing section 302 of the rotating shaft 30, and the length of the reducing section 302 is smaller than the length of the filter cartridge mechanism, the extrusion screw includes at least two sections of helical blades 31 which are separately disposed and sequentially arranged at intervals along the axial direction of the rotating shaft 30, and the rotation directions of the helical blades 31 are the same; the helical blades 31 are arranged in an equal diameter mode, and the distance between every two adjacent helical blades 31 is the single-pitch of the helical blades 31; with the arrangement, a buffer space is formed between the two spiral blades 31, even if the amount of kitchen waste thrown in each time is small or the feeding speed is slow, the kitchen waste thrown in first can temporarily stay in the buffer space, and when the kitchen waste thrown in first is converged with the kitchen waste thrown in later and reaches the buffer space, the kitchen waste thrown in first can be pushed to the second spiral blade 31 due to mutual extrusion, so that dehydration with a large flow can be completed in the buffer space, the kitchen waste entering the downstream is more compact, the amount of the kitchen waste in each pitch of the downstream spiral blade 31 is sufficient, and the downstream extrusion dehydration effect is effectively ensured;

a plurality of discharging shifting pieces 32 are arranged on the outer wall of one end, far away from the feed inlet 20, of the rotating shaft 30, inclined included angles are formed between the discharging shifting pieces 32 and the central shaft of the rotating shaft 30, the discharging shifting pieces 32 are located outside the filter cartridge mechanism, the discharging shifting pieces 32 are uniformly distributed in a circumferential mode around the central shaft of the rotating shaft 30, and the inclined directions of the discharging shifting pieces 32 are consistent with the extending direction of the spiral blades 31; because the kitchen waste usually contains a large amount of substances such as starch and the like, the kitchen waste is easy to adhere and agglomerate after being extruded and dehydrated so as to be easily blocked at the discharge port 23, and the solid waste discharged out of the filter cylinder mechanism can be stirred to be more quickly scattered by arranging the discharge stirring sheet 32, so that silting is avoided;

as shown in fig. 1, the power mechanism includes a variable frequency motor 41 mounted through a fixing base 40, and an output end of the variable frequency motor 41 is connected to a first connecting section 301 of the rotating shaft 30 extending to the outside of the box structure through a coupling 42, so as to drive the screw extrusion mechanism. When the utility model works, kitchen waste is thrown into the filter cartridge mechanism through the first opening 12 and the feed inlet 20, moves towards the discharge port 23 under the driving action of the screw extrusion mechanism and is extruded gradually, sewage separated by extrusion passes through the side wall of the filter cartridge mechanism and is converged into the liquid collecting tank 16 below, and the sewage can be collected through a pipeline for treatment; and the solid waste that the water content reduces after squeezing then discharges through discharge gate 23, can set up the receiver below discharge gate 23 and collect it for the processing.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. Spiral extrusion hydroextractor, including power unit, the spiral extrusion mechanism and the cover that the level set up at the outside mechanism of straining of spiral extrusion mechanism, spiral extrusion mechanism is including connecting the rotation axis at the power unit output and fixing the extrusion spiral at the rotation axis outside, strain a whole cylinder of mechanism and its one end lateral wall and seted up feed inlet, its characterized in that for cylinder: the extrusion screw comprises at least two sections of helical blades which are arranged in a separated mode and are sequentially arranged at intervals along the axial direction of the rotating shaft, and the rotating directions of the helical blades are the same.

2. A screw extruder-extractor according to claim 1 wherein: the helical blades are arranged in an equal diameter mode, and the distance between every two adjacent helical blades is the single-pitch of the helical blades.

3. A screw extruder-extractor according to claim 1 wherein: the filter cartridge mechanism comprises a main body filter cartridge and an end filter cartridge, wherein the feed inlet is positioned at one end of the main body filter cartridge, the end filter cartridge is connected with one end, far away from the feed inlet, of the main body filter cartridge in an axially adjustable manner and is positioned inside the main body filter cartridge, and the inner diameter of the end filter cartridge is gradually reduced in the direction far away from the feed inlet.

4. A screw extruder-extractor according to claim 1 wherein: the outer wall of the end, far away from the feed inlet, of the rotating shaft is provided with a plurality of discharging shifting pieces, and the discharging shifting pieces and the center shaft of the rotating shaft are provided with inclined included angles.

5. The screw extrusion dehydrator of claim 4, wherein: the discharge shifting sheet is positioned outside the filter cylinder mechanism.

6. The screw extrusion dehydrator of claim 4, wherein: the discharging shifting pieces are uniformly and circumferentially distributed around the central shaft of the rotating shaft, and the inclination direction of the discharging shifting pieces is consistent with the extension direction of the helical blades.

7. A screw extruder-extractor according to claim 1 wherein: the rotation axis contains first linkage segment, reducing section, sizing section and the second linkage segment of coaxial rigid coupling in proper order, the sizing section is located keeping away from feed inlet one end of rotation axis, the external diameter of reducing section is the crescent formula setting on the direction of keeping away from the feed inlet.

8. A screw extruder-extractor according to claim 1 wherein: the extrusion screw is arranged on the outer wall of the variable-diameter section of the rotating shaft, and the length of the variable-diameter section is smaller than that of the filter cartridge mechanism.