CN114474826A

CN114474826A - Screw extrusion separation system

Info

Publication number: CN114474826A
Application number: CN202111626979.XA
Authority: CN
Inventors: 徐振宇; 崔会远
Original assignee: Kangdeli Intelligent Technology Zhejiang Co ltd
Current assignee: Kangdeli Intelligent Technology Zhejiang Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-05-13

Abstract

The present disclosure relates to a screw extrusion separation system comprising: the slurry inlet pipeline is used for receiving the slurry-residue mixture; the slurry outlet pipeline is used for being communicated with the slurry storage tank; screw pushing mechanism, including a plurality of parallelly connected screw extruder between advancing thick liquid pipeline and play thick liquid pipeline, screw extruder includes: the device comprises an outer barrel, a filter screen and a pulp outlet, wherein the two opposite ends of the peripheral surface of the outer barrel are provided with a pulp inlet and a pulp outlet, the pulp inlet is communicated with a pulp inlet pipeline, the pulp outlet is communicated with a pulp outlet pipeline, the end surface of the outer barrel, which is close to the pulp outlet, is provided with a slag outlet, the spiral rod is coaxially arranged in the outer barrel and can rotate around the axis direction of the spiral rod so as to push a pulp-slag mixture to move towards the slag outlet, and the filter screen is sleeved on the outer side of the spiral rod; and the slurry-slag stirring mechanism is used for receiving slag from the slag outlet. Through above-mentioned technical scheme, the spiral extrusion piece-rate system that this disclosure provided can solve the technical problem that thick liquid sediment is inefficiency.

Description

Screw extrusion separation system

Technical Field

The present disclosure relates to the field of food technology, and in particular, to a screw extrusion separation system.

Background

When the soybeans are ground into soybean paste, a large amount of bean dregs are contained. The removal of bean dregs is an essential step in the process of making soybean milk. The production process of soybean milk is generally divided into a raw milk process (conventional process) and a cooked milk process. The process of raw soybean milk is briefly summarized as removing the bean dregs and then boiling the soybean milk. The process of cooking the pulp is briefly summarized as cooking the bean paste and then removing the bean dregs from the bean paste. Compared with the traditional raw soybean milk process, the cooked soybean milk process has the advantages that the protein residue in the soybean dregs is lower, and the soybean products such as bean curd, dried bean curd and the like are prepared, so that the taste and the toughness are better.

However, the bean dregs separating apparatus of the raw slurry process cannot be applied to the boiled slurry process. The bean dregs separation of the cooked milk process is usually realized by devices such as a cooked milk sieve, a vibrating sieve and the like, but both the cooked milk sieve and the vibrating sieve are only suitable for separating low-concentration soybean milk from the bean dregs, and both the cooked milk sieve and the vibrating sieve have the technical problems of low separation efficiency, easy net blockage, difficult cleaning and the like because the viscosity of the cooked soybean paste is higher.

Disclosure of Invention

The utility model aims at providing a spiral extrusion piece-rate system to solve the technical problem that thick liquid sediment separation efficiency is low.

To achieve the above object, the present disclosure provides a screw extrusion separation system, comprising: the slurry inlet pipeline is used for receiving the slurry-residue mixture; the slurry outlet pipeline is used for being communicated with the slurry storage tank; screw pushing mechanism, including a plurality of parallelly connected in advance thick liquid pipeline with go out the thick liquid pipeline between the spiral extruder, the spiral extruder includes: the outer barrel is provided with a pulp inlet and a pulp outlet at two opposite ends of the outer peripheral surface of the outer barrel, the pulp inlet is communicated with the pulp inlet pipeline, the pulp outlet is communicated with the pulp outlet pipeline, a slag outlet is arranged on the end surface of the outer barrel, which is far away from the pulp inlet, and a screw rod is coaxially arranged in the outer barrel and can rotate around the axis direction of the screw rod so as to push a pulp-slag mixture to move towards the slag outlet; and the slurry-slag stirring mechanism is used for receiving slag from the slag outlet.

Optionally, the screw rod is configured as a conical structure having a large diameter end disposed proximate to the slurry inlet and a small diameter end disposed proximate to the slag outlet.

Optionally, the screen is configured as a conical structure, and the taper of the screen is the same as the taper of the screw rod.

Optionally, the screen is movable in an axial direction of the screw rod to adjust a gap between the screen and the screw rod.

Optionally, the screw extruder further comprises a driving part for driving the screw rod to rotate.

Optionally, the slurry inlet is arranged at the upper part of the outer barrel, and the slurry outlet is arranged at the lower part of the outer barrel.

Optionally, the slurry inlet is provided with a slurry inlet control valve, and the slurry outlet is provided with a slurry outlet control valve.

Optionally, the slag notch is provided with the structure of adjusting of slagging tap, it includes to slag tap the structure of adjusting: the baffle is movably connected with the slag outlet; and the elastic piece is arranged on the outer side of the baffle and can provide orientation for the baffle and the elastic force moving in the slag hole, and the compression amount of the elastic piece can be adjusted, so that the slag tapping pressure of the slag hole is adjustable.

Optionally, the slurry inlet can serve as a first cleaning water inlet, and a first cleaning water outlet is further disposed at an upper portion of the outer circumferential surface of the outer cylinder, and the first cleaning water outlet is disposed near the slag outlet.

Optionally, the slurry-residue stirring mechanism comprises: the slurry and slag stirring barrel is communicated with the slag outlet, a second cleaning water inlet and an exhaust port are formed in the upper part of the slurry and slag stirring barrel, and a slag discharging port is formed in the lower part of the slurry and slag stirring barrel; and the slurry-slag conveying pump is used for pumping the slag discharged from the slag discharge port.

Through above-mentioned technical scheme, the spiral extrusion piece-rate system that this disclosure provided includes screw extruder, advance the thick liquid pipeline and can send the thick liquid sediment mixture into screw extruder through advancing the thick liquid mouth on the urceolus, the hob is at the rotation in-process, its helicoid can push the thick liquid sediment mixture towards the slag notch, and can be continuously extruded at promotion in-process thick liquid sediment mixture, so that thick liquid juice wherein can be extruded, thick liquid juice can see through the filter screen and discharge to storing up the thick liquid jar through a thick liquid mouth, residue in the thick liquid sediment mixture keeps between filter screen and hob, finally be pushed out the slag notch and fall into in the thick liquid sediment rabbling mechanism along with the rotation of hob. The extrusion of the pulp-residue mixture by the screw extruder can improve the pulp juice extrusion rate and the pulp-residue separation speed of the pulp-residue mixture, and reduce bubbles in the separated pulp. In addition, the spiral extrusion separation system of this disclosure includes a plurality of spiral extrusion machines that set up in parallel, can improve the thick liquid extrusion capacity of unit interval to be applicable to the production line that the productivity requirement is high.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a front view of a screw extrusion separation system in an embodiment of the present disclosure;

FIG. 2 is a top view of a screw extrusion separation system in an embodiment of the present disclosure;

FIG. 3 is a left side view of a screw extrusion separation system in an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of a screw extruder in accordance with an embodiment of the present disclosure;

FIG. 5 is a cross-sectional view of a screw extruder in an embodiment of the present disclosure.

Description of the reference numerals

1-a slurry inlet pipeline, 2-a slurry outlet pipeline, 3-a spiral pushing mechanism, 30-a spiral extruder, 31-an outer cylinder, 32-a slurry inlet, 321-a slurry inlet control valve, 33-a slurry outlet, 331-a slurry outlet control valve, 34-a slag outlet, 35-a screw rod, 36-a filter screen, 37-a driving part, 371-a driving motor, 38-a slag outlet adjusting structure, 381-a baffle, 382-an elastic part, 383-an adjusting handle, 39-a first cleaning water outlet, 4-a slurry residue stirring mechanism, 41-a slurry residue stirring barrel, 411-a second cleaning water inlet, 412-an exhaust port and 42-a slurry residue conveying pump.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise stated, the use of directional terms such as "upper and lower" generally refers to the upper and lower of the separation system in normal use, referring to the drawing directions of fig. 1 and 3 to 5, "inner and outer" refers to the inner and outer relative to the profile of the corresponding component. The terms "first," "second," and the like, as used in this disclosure, are intended to distinguish one element from another, and not necessarily for sequential or importance. In addition, when the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated.

According to an embodiment of the present disclosure, a screw extrusion separation system is provided, which may include a slurry inlet pipeline 1, a slurry outlet pipeline 2, a screw extrusion mechanism 3, and a slurry-residue stirring mechanism 4, as shown in fig. 1 to 5. Wherein the milk intake pipe 1 is used for receiving the mixture of the pulp residue, for example, when the screw extrusion separation system of the present disclosure is used in a process for producing cooked milk of soybean milk, the milk intake pipe 1 may be in fluid communication with the milk cooking system for receiving the soybean paste cooked by the milk cooking system; the slurry outlet pipeline 2 is used for being communicated with a slurry storage tank; the screw pushing mechanism 3 may include a plurality of screw extruders 30 connected in parallel between the slurry inlet pipeline 1 and the slurry outlet pipeline 2, each screw extruder 30 may include an outer barrel 31, a screw rod 35 and a filter screen 36, opposite ends of an outer circumferential surface of the outer barrel 31 are provided with a slurry inlet 32 and a slurry outlet 33, the slurry inlet 32 is communicated with the slurry inlet pipeline 1 to introduce the slurry-slag mixture into the outer barrel 31, the slurry outlet 33 is communicated with the slurry outlet pipeline 2, an end surface of the outer barrel 31 far away from the slurry inlet 32 is provided with a slag outlet 34, the screw rod 35 is coaxially disposed in the outer barrel 31, the screw rod 35 is capable of rotating around its own axis direction to push the slurry-slag mixture entering the outer barrel 31 to move towards the slag outlet 34, and the filter screen 36 may be sleeved outside the screw rod 35 to filter out the extruded slurry during pushing; the slurry-slag stirring mechanism 4 is used for receiving the residue from the slag outlet 34, adding water into the residue, uniformly stirring the residue and then sending the residue out.

Through the technical scheme, the spiral extrusion separation system provided by the present disclosure includes the spiral extruder 30, the pulp inlet pipeline 1 can send the pulp-residue mixture into the spiral extruder 30 through the pulp inlet 32 on the outer cylinder 31, the spiral surface of the spiral rod 35 can push the pulp-residue mixture to the slag outlet 34 in the rotation process, and the pulp-residue mixture can be continuously extruded in the pushing process, so that the pulp juice therein can be extruded, the pulp juice can permeate the filter screen 36 and be discharged to the pulp storage tank through the pulp outlet 33, the residue in the pulp-residue mixture is kept between the filter screen 36 and the spiral rod 35, and is finally pushed out of the slag outlet 34 and falls into the pulp stirring mechanism 4 along with the rotation of the spiral rod 35. The pushing of the pulp-residue mixture by the screw extruder 30 can improve the pulp-residue separation rate and the pulp-residue separation speed of the pulp-residue mixture and reduce air bubbles in the separated pulp. In addition, the screw extrusion separation system of the present disclosure includes a plurality of screw extruders 30 arranged in parallel, which can improve the juice extrusion amount per unit time, thereby being suitable for a production line with high productivity requirement.

Referring to fig. 5, the screw rod 35 may be constructed in a tapered structure having a large diameter end and a small diameter end, the large diameter end may be disposed near the slurry inlet 32, the small diameter end may be disposed near the slag outlet 34, the rotation direction of the screw rod 35 is the same as the spiral direction of the helicoid from the large diameter end to the small diameter end, correspondingly, the filter screen 36 may also be constructed in a tapered structure, and the taper of the filter screen 36 is the same as that of the screw rod 35, so that the space between the filter screen 36 and the screw rod 35, in which the slurry-residue mixture may be contained, is gradually reduced, so that the slurry-residue mixture is moved to the small diameter end by the large diameter end, and the extrusion force that is continuously and gradually increased can be received, thereby improving the efficiency of extruding the slurry.

In addition, in order to carry out the thick liquid sediment separation to different thick liquid sediment mixtures, filter screen 36 can follow the axial displacement of hob 35 to adjust the clearance between filter screen 36 and hob 35, avoid the clearance too big and be unfavorable for the discharge of dregs of beans, avoid simultaneously that the clearance undersize leads to filter screen 36 and hob 35 contact and mutual wearing and tearing, specifically, when filter screen 36 moves along axial orientation entering thick liquid mouth 32, the clearance between filter screen 36 and the hob 35 reduces, when filter screen 36 moves along axial orientation slag notch 34, the clearance between filter screen 36 and the hob 35 increases.

Referring to fig. 2 to 4, the screw extruder 30 may further include a driving part 37 for driving the screw rod 35 to rotate, and specifically, the driving part 37 may include a driving motor 371, and an output shaft of the driving motor 371 may be in transmission connection with the screw rod 35 through a speed reducer.

Referring to fig. 3 to 5, a slurry inlet 32 may be provided at an upper portion of the outer tub 31 so that the slurry-residue mixture is introduced into the outer tub 31 by gravity, and a slurry outlet 33 may be provided at a lower portion of the outer tub 31 so that the separated slurry can be discharged at an accelerated speed by gravity.

Referring to fig. 3, the slurry inlet 32 may be provided with a slurry inlet control valve 321 to adjust the flow rate of the slurry-residue mixture entering the outer tub 31 through the slurry inlet 32, and the slurry outlet 33 may be provided with a slurry outlet control valve 331 to enable the slurry outlet 33 to be closed when CIP cleaning is performed on the screw extruder 30.

Referring to fig. 4 and 5, the slag hole 34 may be provided with a slag hole adjusting structure 38 to adjust the slag pressure, and the slag hole adjusting structure 38 may include a baffle 381, an elastic member 382 and an adjusting handle 383, wherein the baffle 381 is movably connected to the slag hole 34 and can be close to or away from the slag hole 34 along the axial direction of the outer cylinder 31, the elastic member 382 is disposed outside the baffle 381 and can provide the baffle 381 with an elastic force moving toward the slag hole 34, and as the screw rod 35 rotates, the slag can apply an outward pressure to the baffle 381, so that the baffle 381 can move toward a direction away from the slag hole 34 against the elastic force of the elastic member 382, at this time, the slag hole 34 is opened, and the slag can be discharged into the slurry stirring mechanism 4 through the slag hole 34. Further, by rotating the adjustment handle 383, the amount of compression of the elastic member 382, that is, the elastic force provided by the elastic member 382 to the slag hole 34 can be adjusted to adjust the slag tapping pressure required for the slag pushing-out flapper 381.

In order to perform internal cleaning on the screw extruder 30, as shown in fig. 2 to 5, the slurry inlet 32 can be used as a first cleaning water inlet, a first cleaning water outlet 39 can be further disposed on an upper portion of an outer circumferential surface of the outer cylinder 31, the first cleaning water outlet 39 can be disposed near the slag outlet 34, when the screw extruder 30 needs to be cleaned internally, the slurry outlet control valve 331 of the slurry outlet 33 can be closed, clean water is continuously injected through the slurry inlet 32, the clean water flows to the first cleaning water outlet 39 along an axial direction of the outer cylinder 31, and when the interior of the outer cylinder 31 is filled with the clean water, the clean water can flow out from the first cleaning water outlet 39 to perform circular cleaning on the interior of the outer cylinder 31.

Referring to fig. 1 to 3, the slurry-slag stirring mechanism 4 may include a slurry-slag stirring barrel 41 and a slurry-slag delivery pump 42, the slurry-slag stirring barrel 41 being in communication with the slag outlet 34, to receive the residue from the slag outlet 34, the upper portion of the slurry-residue mixing tank 41 may be provided with a second washing water inlet 411 and an exhaust outlet 412, the lower portion of the slurry-residue mixing tank 41 may be provided with a slag outlet (not shown), the slurry-residue mixing tank 41 may be further provided therein with a washing ball (not shown) and a mixer (not shown) communicating with the second washing water inlet 411, clean water is injected into the cleaning ball through the second cleaning water inlet 411, the cleaning ball can uniformly spray the clean water into the slurry residue stirring barrel 41, clear water and residues are mixed and uniformly stirred through the stirrer, so that the residues can be diluted and discharged through the residue discharge port, and the slurry-residue conveying pump 42 is arranged at the residue discharge port so as to be capable of pumping the residues discharged from the residue discharge port. In addition, when washing in the thick liquid sediment agitator 41, can inject the clear water into the cleaning ball through second washing water inlet 411, the cleaning ball can evenly spray the clear water in thick liquid sediment agitator 41, through the stirring of agitator for the clear water can flow in thick liquid sediment agitator 41, and with remaining residue in the bucket through row's cinder notch rush out, with the completion to the washing of thick liquid sediment agitator 41.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. A screw extrusion separation system, comprising:

the slurry inlet pipeline (1) is used for receiving the slurry-residue mixture;

the slurry outlet pipeline (2) is used for being communicated with the slurry storage tank;

screw pushing mechanism (3) comprising a plurality of screw extruders (30) connected in parallel between said slurry inlet line (1) and said slurry outlet line (2), said screw extruders (30) comprising:

the outer barrel (31), the relative both ends of the outer peripheral face of outer barrel (31) are provided with a pulp inlet (32) and a pulp outlet (33), the pulp inlet (32) is communicated with the pulp inlet pipeline (1), the pulp outlet (33) is communicated with the pulp outlet pipeline (2), the outer barrel (31) is far away from the end face of the pulp inlet (32) and is provided with a slag outlet (34),

a screw rod (35) coaxially arranged in the outer cylinder (31), the screw rod (35) being rotatable about its own axis direction to urge the movement of the pulp-slag mixture towards the slag outlet (34), and

the filter screen (36) is sleeved on the outer side of the screw rod (35); and

and the slurry and slag stirring mechanism (4) is used for receiving the slag from the slag outlet (34).

2. The screw extrusion separation system of claim 1, wherein the screw rod (35) is configured as a conical structure having a large diameter end disposed proximate to the slurry inlet (32) and a small diameter end disposed proximate to the slag outlet (34).

3. The screw extrusion separation system of claim 2, wherein the screen (36) is configured as a tapered structure and the taper of the screen (36) is the same as the taper of the screw rod (35).

4. A screw extrusion separation system according to claim 3, wherein the sieve (36) is movable in the axial direction of the screw rod (35) to adjust the gap between the sieve (36) and the screw rod (35).

5. A screw extrusion separation system according to any one of claims 1-4, wherein the screw extruder (30) further comprises a drive portion (37) for driving the screw rod (35) in rotation.

6. The screw extrusion separation system according to claim 1, wherein the slurry inlet (32) is provided at an upper portion of the outer tub (31), and the slurry outlet (33) is provided at a lower portion of the outer tub (31).

7. Screw extrusion separation system according to claim 1 or 6, wherein the slurry inlet (32) is provided with a slurry inlet control valve (321) and the slurry outlet (33) is provided with a slurry outlet control valve (331).

8. Screw extrusion separation system according to claim 1, wherein the tap hole (34) is provided with a tap adjustment structure (38), the tap adjustment structure (38) comprising:

the baffle plate (381) is movably connected with the slag outlet (34); and

the elastic piece (382) is arranged on the outer side of the baffle plate (381), and can provide elastic force for the baffle plate (381) to move towards the inside of the slag outlet (34), and the compression amount of the elastic piece (382) can be adjusted, so that the slag outlet pressure of the slag outlet (34) is adjustable.

9. The screw extrusion separation system according to claim 1, wherein the slurry inlet (32) is capable of serving as a first washing water inlet, and a first washing water outlet (39) is further provided at an upper portion of an outer circumferential surface of the outer tub (31), the first washing water outlet (39) being provided near the slag outlet (34).

10. The screw extrusion separation system according to claim 1, wherein the sludge stirring mechanism (4) comprises:

the slurry and slag stirring barrel (41) is communicated with the slag outlet (34), a second cleaning water inlet (411) and an exhaust port (412) are arranged at the upper part of the slurry and slag stirring barrel (41), and a slag discharge port is arranged at the lower part of the slurry and slag stirring barrel (41); and

and the slurry-residue conveying pump (42) is used for pumping the residue discharged from the residue discharge port.