CN113210142A

CN113210142A - No-residue horizontal screw centrifuge

Info

Publication number: CN113210142A
Application number: CN202110502974.XA
Authority: CN
Inventors: 冯贵铁
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-08-06
Anticipated expiration: 2041-05-08
Also published as: CN113210142B

Abstract

A residue-free horizontal screw centrifuge belongs to the technical field of centrifugal separation and comprises a rotary drum and a screw inner rod with screw blades and a feed inlet; the rotary drum includes the extrusion section and with the main section of subsiding of the coaxial setting of extrusion section, the extrusion section is provided with the slag notch, the main section of subsiding is provided with filtration, filtration is including setting up annular and the cyclic annular filtering component at main section of subsiding inner wall, radially link up in the annular and be provided with a plurality of liquid outlets, cyclic annular filtering component's interior anchor ring with main section of subsiding inner wall flushes, and including the axial of anchor ring be provided with a plurality of filter tanks, arbitrary filter tank and arbitrary liquid outlet intercommunication. The filter structure is skillfully arranged in the wall of the main settling section, the solid is discharged through the slag outlet, the liquid is discharged through the liquid outlet, the cleaning is not needed, the risk of different tainting of odor of the material is reduced, meanwhile, the structure can also discharge the liquid material in a shutdown state, the energy consumption is reduced, and the use cost is further reduced.

Description

No-residue horizontal screw centrifuge

Technical Field

The invention relates to the technical field of centrifugal separation, in particular to a residue-free and cleaning-free horizontal decanter centrifuge.

Background

The horizontal screw centrifuge is a spiral discharge sedimentation centrifuge, centrifugal force is generated through high-speed rotation of a centrifuge drum, solid and liquid in mixed liquid are separated, the solid in the mixed liquid is attached to the inner wall of the drum under the action of the centrifugal force due to the high-speed rotation of the centrifuge, then the solid attached to the inner wall of the drum is pushed to a small-end slag discharge port of the drum through blades on a spiral pusher and is discharged, clear liquid flows out from a large-end overflow port of the drum through high-speed rotation, and the process is circulated so as to achieve the purpose of continuous separation. Although the flowing direction of the clear liquid and the solid is not consistent, the solid which is not partially attached to the inner wall of the rotary drum is prevented from moving towards the overflow port. In order to avoid the solids from flowing out of the overflow, a certain distance is provided between the edge of the overflow and the inner wall of the drum, so that the solids moving towards the large end of the drum are retained in the drum, but a part of the clear liquid is retained in the drum.

It can be known from the above that, set up the overflow mouth in the bottommost of rotary drum tip, can discharge liquid material, nevertheless have the problem that solid-state material sneakes into, and set up the overflow mouth and lean on a certain distance, then have the problem that liquid material can't be discharged.

Disclosure of Invention

In view of this, the present invention provides a residue-free horizontal decanter centrifuge, which provides a new filtering structure, and can completely discharge liquid material without mixing material, so as to solve the problem in the prior art that the mixed material or the liquid material cannot be discharged completely.

The invention is realized by the following technical scheme:

a residue-free horizontal screw centrifuge comprises a rotary drum and a screw inner rod with screw blades and a feed inlet; the rotary drum includes the extrusion section and with the main section of subsiding of the coaxial setting of extrusion section, the extrusion section is provided with the slag notch, main section of subsiding is provided with filtration, filtration is including setting up at the annular of main section of subsiding inner wall and the cyclic annular filtering component of cover at the annular open end, radially link up in the annular and be provided with a plurality of liquid outlets, cyclic annular filtering component's interior anchor ring with main section of subsiding inner wall flushes, and is provided with a plurality of filter tanks including in the axial of anchor ring, arbitrary filter tank and arbitrary liquid outlet intercommunication.

Furthermore, the end face of the main sedimentation section is provided with an overflow port.

Further, cyclic annular filtering component includes ring holder and baffle group, baffle group includes a plurality of strip baffles, and is a plurality of the strip baffle all is on a parallel with the annular axis setting at ring holder inner ring surface, and is adjacent the strip baffle is provided with the clearance, the clearance constitutes the filter-tank.

Further, the ring frame at least comprises an upper ring and a lower ring, and the upper ring and the lower ring are respectively integrally or detachably arranged on the outer surface of the partition plate group.

It is further, a plurality of strip baffle is the trapezoidal plate that the syntropy set up, makes the filter-tank between the trapezoidal plate be the dovetail groove, and the minor face of dovetail groove is imported, and the long limit of dovetail groove is the export, import and main settlement section inner wall flush, export orientation ring groove bottom and liquid outlet intercommunication.

Furthermore, the shortest distance between the edge of the filter tank and the end surface of the overflow port is not less than the shortest distance between the end surface of the spiral blade and the end surface of the overflow port.

Furthermore, the width of the inlet along the circumferential direction of the filter plate is 0.15 mm-1.2 mm。

Further, the annular groove is provided with a flow guide slope.

The invention has the beneficial effects that:

1. the annular groove is arranged on the inner wall of the main sedimentation section, the annular groove covers the filter plate, the filter plate is provided with the filter tank, the bottom of the annular groove is provided with the through hole, the width of the filter tank is set according to the particle size to be filtered, solid matters larger than the set value can be blocked in the rotary drum, liquid clear liquid enters the annular groove and flows out through the set through hole, on one hand, the filter effect is achieved, the discharged clear liquid meets the requirement, on the other hand, the rotary drum wall is arranged at the bottom of the annular groove, when the through hole is sufficiently arranged, the rotary drum rotates to any position, the horizontal position of the outermost end of the through hole can be lower than the surface of the inner wall of the rotary drum, so that the clear liquid is completely discharged, the emptying without operation is realized, the residue after the machine halt is avoided, the phenomenon of tainted odor after different food materials are added for the second time is avoided, and the workload and the use cost brought by the cleaning are also avoided, the residue of the cleaning liquid is further avoided;

2. the design that the inner ring surface of the filter plate is flush with the inner wall of the main sedimentation section enables the spiral blades to take away all solid matters without obstacles, and further prevents the solid matters from blocking the filter holes;

3. any filter tank is communicated with any liquid outlet, so that clear liquid is discharged from any position of any liquid outlet, the discharge is not selective, and the discharge capacity is improved.

In a word, the filter structure is skillfully arranged in the wall of the main sedimentation section, so that solid can be completely discharged through the slag outlet, liquid can be completely discharged through the liquid outlet without being cleaned, the risk of different tainting odors of materials is reduced, and meanwhile, the structure can also discharge liquid objects in a shutdown state, so that the energy consumption is reduced, and the use cost is further reduced.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

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

FIG. 2 is a schematic view of the present invention with the housing and motor removed;

FIG. 3 is a cross-sectional view of the drum;

FIG. 4 is a schematic view of an annular filter assembly;

in the figure: 1-rotating the drum; 2-a spiral inner rod; 3-a drum motor; 4-a screw motor; 5-extruding section; 6-main settling section; 7-a slag outlet; 8-helical leaves; 9-a feed inlet; 10-ring groove; 11-a liquid outlet; 12-a filter tank; 13-ring frame; 14-a separator group; 15-an overflow port; 16-diversion gradient; 17-outer shell.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the above description of the present invention, it should be noted that the terms "one side", "the other side" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or the element to which the present invention is directed must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Further, the term "identical" and the like do not mean that the components are absolutely required to be identical, but may have slight differences. The term "perpendicular" merely means that the positional relationship between the components is more perpendicular than "parallel", and does not mean that the structure must be perfectly perpendicular, but may be slightly inclined.

As shown in fig. 1-4, the present invention provides a residue-free horizontal screw centrifuge, which comprises a rotary drum 1 and an inner screw rod 2, wherein the rotary drum is provided with a rotary drum motor 3, the inner screw rod is provided with a screw motor 4, the rotary drum motor and the screw motor are respectively arranged at one side, so that the rotary drum and the inner screw rod can rotate at a differential speed, the rotary drum comprises an extrusion section 5 and a main sedimentation section 6 which is coaxial with the extrusion section, the extrusion section is provided with a slag outlet 7, the inner screw rod is provided with a screw blade 8 for driving solid materials to enter the extrusion section from the main sedimentation section for extrusion, the solid materials after being extruded are discharged from the slag outlet, meanwhile, the inner screw rod is provided with a feed inlet 9 for feeding separated materials into the rotary drum from the outside, in particular, the embodiment is provided with a filter structure at the main sedimentation section, the filter structure comprises a ring groove 10 arranged on the inner wall of the main sedimentation section and an annular filter component covering the opening end of the ring groove, the annular groove is internally provided with a plurality of liquid outlets 11 along the radial direction in a through mode, liquid materials are discharged, the inner annular surface of the annular filtering component is flush with the inner wall of the main sedimentation section, a plurality of filtering grooves 12 are arranged in the axial direction of the inner annular surface, the liquid materials are introduced into the annular groove through the filtering grooves, solid materials are separated on the wall of the rotary drum, and any filtering groove is communicated with any liquid outlet and communicated with one other, so that the liquid materials are discharged conveniently.

In the embodiment, the annular groove is arranged on the inner wall of the main sedimentation section, the annular groove is covered with the annular filtering component, the annular filtering component is provided with a plurality of filtering grooves, the bottom of the annular groove is provided with the through holes, the width of each filtering groove is set according to the particle size to be filtered, solid matters larger than the set value can be blocked in the rotary drum, the liquid enters the ring groove and flows out through the arranged through holes, on one hand, the filtering effect is achieved, the discharged liquid material meets the requirements, on the other hand, the liquid material is arranged at the bottom of the ring groove, namely on the rotary drum wall, when the through holes are arranged enough, the drum rotates to any position, the horizontal position of the outermost end of the through hole can be lower than the surface of the inner wall of the drum, therefore, the liquid is completely discharged, the emptying without rotation is realized, the residue after the machine is stopped is avoided, the phenomenon of tainting odor after different food materials are added for the second time is avoided, and the workload and the use cost caused by cleaning are also avoided; the design that the inner ring surface of the filter plate is flush with the inner wall of the main sedimentation section enables the spiral blade to take away all solid matters without obstacles, so that the solid is further prevented from blocking the filter holes, and the flowability is improved.

As the improvement of this embodiment, cyclic annular filter assembly includes ring frame 13 and baffle group 14, and baffle group includes a plurality of strip baffles, and a plurality of strip baffles all are on a parallel with the annular axis and set up on ring frame inner ring surface, and adjacent strip baffle is provided with the clearance, and the clearance constitutes the filter tank for solid-liquid separation to the material.

The circumferential width of the filter tank is not fixed and can be preset according to the solid size, the separation rotating speed and the area of the feed inlet of the material to be separated. Such as: the chafing dish oil is processed into ingredients, the oil is red oil or salad oil, and the formula accounts for about 70 percent; chopping or crushing the wet material ginger, scallion and garlic, and processing the solid material into the size of rice grains or soybean grains, wherein the formula accounts for about 10 percent; the spice is partially crushed and processed, the fineness of the spice is 40-60 meshes, and the formula accounts for about 1 percent; the rest of the flavoring agent.

Normally, only the liquid outlet can be used to discharge the liquid material, but as a necessity, the overflow port 15 is provided on the end surface of the main settling section, so that more liquid material can be discharged at the same time, so as to improve the emptying efficiency.

As an improvement of this embodiment, the ring frame includes an upper ring and a lower ring, and the upper ring and the lower ring are respectively disposed at the upper end and the lower end of the partition plate group, and are located outside the partition plate group, so as to connect the partition plate group and form a filter structure arranged circumferentially. Meanwhile, the device can be conveniently detached and is convenient to maintain and install.

Of course, the ring frame can also comprise a middle ring which is arranged in the middle of the partition plate group and can play a better supporting role.

The ring frame and the partition plate group in the embodiment can be integrally arranged or detachably arranged and can be specifically selected according to actual conditions.

As the improvement of this embodiment, strip baffle is trapezoidal plate, and radially, the long limit of trapezoidal plate outwards, and the minor face forms the syntropy setting inwards, makes the filter-tank between the trapezoidal plate be the dovetail groove, and the minor face of dovetail groove is imported, and the long limit of dovetail groove is for exporting, and import and main settlement section inner wall flush, export towards the ring groove bottom and liquid outlet intercommunication. Like this for import is narrower than the export, does benefit to the material after the through and flows out fast, reduces to be detained.

As the improvement of this embodiment, the shortest distance between filter tank edge and overflow mouth terminal surface is not less than the shortest distance between spiral leaf terminal surface and overflow mouth terminal surface to thereby guarantee that helical blade is used the filter surface when rotatory and strike off the precipitate on the filter, on avoiding partial clear liquid to adhere to the filter with the solid when flowing out from the filter tank, need use the washing liquid to wash the filter.

In the process of processing small-batch and multi-variety foods by using a horizontal screw centrifuge, the size of the solid in the liquid to be separated is generally 6-12 mm, and therefore, the circumferential width of the inlet is set to be 0.15-1.2 mm, so that a better separation effect can be achieved.

In this embodiment, the bottom of the annular groove is provided with a flow guide slope 16, so that the clear liquid flowing from the filter plate can flow out from the through holes more easily.

In this embodiment, a housing 17 may be provided to enclose the drum 1 and to temporarily store the separated material.

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. A residue-free horizontal screw centrifuge is characterized by comprising a rotary drum and a screw inner rod with screw blades and a feed inlet; the rotary drum includes the extrusion section and with the main section of subsiding of the coaxial setting of extrusion section, the extrusion section is provided with the slag notch, main section of subsiding is provided with filtration, filtration is including setting up at the annular of main section of subsiding inner wall and the cyclic annular filtering component of cover at the annular open end, radially link up in the annular and be provided with a plurality of liquid outlets, cyclic annular filtering component's interior anchor ring with main section of subsiding inner wall flushes, and is provided with a plurality of filter tanks including in the axial of anchor ring, arbitrary filter tank and arbitrary liquid outlet intercommunication.

2. A residue-free horizontal decanter centrifuge as claimed in claim 1, wherein an end face of said primary settling section is provided with an overflow port.

3. The residue-free horizontal decanter centrifuge of claim 2, wherein said annular filter assembly comprises a ring frame and a baffle plate assembly, said baffle plate assembly comprising a plurality of strip-shaped baffle plates, each of said plurality of strip-shaped baffle plates being disposed on an inner ring surface of said ring frame parallel to the ring groove axis, a gap being provided adjacent to said strip-shaped baffle plates, said gap constituting said filter tank.

4. A residue-free decanter centrifuge according to claim 3, wherein said ring frame comprises at least an upper ring and a lower ring, said upper and lower rings being integrally or removably disposed, respectively, on an outer surface of said baffle group.

5. The residue-free horizontal decanter centrifuge according to claim 3, wherein said plurality of strip-like partitions are trapezoidal plates arranged in the same direction, so that the filter tank between the trapezoidal plates is a trapezoidal groove, the short side of the trapezoidal groove is an inlet, the long side of the trapezoidal groove is an outlet, said inlet is flush with the inner wall of the main settling section, and said outlet is communicated with the liquid outlet towards the bottom of the annular groove.

6. A residue-free horizontal decanter centrifuge according to claim 3, wherein the shortest distance between the edge of said filter tank and the end surface of said overflow port is not less than the shortest distance between the end surface of said screw blade and the end surface of said overflow port.

7. A residue-free horizontal decanter centrifuge as claimed in claim 5, wherein said inlet port has a width in the circumferential direction of the filter plates of from 0.15mm to 1.2 mm.

8. A residue-free horizontal decanter centrifuge as claimed in any one of claims 1-6, wherein said annular groove is provided with a flow directing ramp.