CN218111367U - Double-screw extrusion filter - Google Patents

Abstract

The utility model discloses a two screw extrusion filters, include: the screen frame is hollow and columnar, sieve pores are formed in the wall of the screen frame, the feed port is communicated with the inside of the screen frame, and the end, far away from the feed port, of the screen frame is communicated with the discharge port; a screw provided within the screen frame, the screw being provided with a first helical blade and a second helical blade in an axial direction thereof; the power device is arranged on the machine body and connected with one end of the screw rod; and the extruding device is positioned at the end of the screen frame, which is far away from the feeding hole, and is used for dehydrating the material. In the technical scheme, the first spiral blade and the second spiral blade on the screw extrude and dehydrate the materials, and convey the materials to the end, far away from the feed inlet, of the screen frame, the extruding device extrudes and dehydrates the materials again, and moisture flows out through the screen holes in the screen frame; thus realizing continuous dehydration with better effect.

Description

Double-screw extrusion filter

Technical Field

The utility model relates to a dewatering equipment field especially relates to a two spiral extrusion filters.

Background

The recycled plastic is a plastic raw material obtained by processing and processing waste plastics by physical or chemical methods such as pretreatment, melting granulation, modification and the like, and is used for recycling the plastics. In the processing process of the recycled plastics, an important step is to clean and dehydrate the plastic wastes. The traditional process for eliminating water by using a common drying machine has the defects of prolonging the processing time of products, losing the weight of raw materials, high power consumption and the like, and increases the production cost. Therefore, before drying, the high-humidity waste plastic after cleaning is subjected to a dehydration pretreatment by a filter, and then dried after the treatment. The existing filter has poor dewatering effect due to poor layout mode among various components.

SUMMERY OF THE UTILITY MODEL

Therefore, a double-screw extrusion filter is needed to be provided, which solves the problem that the dewatering effect of the existing filter is poor due to the poor layout mode among all the components,

in order to realize the above-mentioned purpose, this application provides a two spiral extrusion filters, includes:

the sieve comprises a machine body, wherein the machine body is provided with a feed port, a discharge port and a sieve frame, the sieve frame is in a hollow column shape, sieve pores are arranged on the wall of the sieve frame and are used as channels for water to flow out, the feed port is communicated with the inside of the sieve frame, and the end, far away from the feed port, of the sieve frame is communicated with the discharge port;

the screw is arranged in the screen frame, a first spiral blade and a second spiral blade are arranged on the screw in the axial direction of the screw, and the first spiral blade and the second spiral blade are used for dehydrating materials;

the power device is arranged on the machine body and connected with one end of the screw rod, and the other end of the screw rod is positioned at the end, far away from the feeding hole, of the screen frame;

and the extruding device is positioned at the end, far away from the feeding hole, of the screen frame and is used for dehydrating the material.

Further, the method comprises the following steps: the screen frame cleaning machine further comprises a spraying device, wherein the spraying device is arranged on the machine body, and a spray head of the spraying device is located on one side of the screen frame and used for cleaning the screen frame.

Further, the method comprises the following steps: the spraying device comprises a water source, a pump and a pipeline, wherein the water source is positioned on one side of the machine body, the input end of the pump is connected with the water source, the output end of the pump is connected with the pipeline, and the pipeline is provided with the spray head.

Further: the extrusion device includes telescopic machanism and stripper plate, the stripper plate is in through selling the setting of axle on the organism, the stripper plate size with keep away from the size looks adaptation of the end of feed inlet on the reel for the stripper plate can cover and keep away from the end of feed inlet on the reel and serve, telescopic machanism's one end articulates on the organism, telescopic machanism's the other end articulates on the stripper plate.

Further, the method comprises the following steps: the extrusion device further comprises a connecting rod mechanism, the extrusion plate is further arranged on the machine body through the connecting rod mechanism, and the other end of the telescopic mechanism is hinged to the connecting rod mechanism and indirectly hinged to the extrusion plate.

Further: the linkage has 2 articulated links.

Further: the telescopic mechanism comprises one of an air cylinder, a hydraulic cylinder and an electric telescopic rod.

Further, the method comprises the following steps: the power device comprises a motor and a gear reduction mechanism, wherein an output shaft of the motor is connected with an input end of the gear reduction mechanism, and an output end of the gear reduction mechanism is connected with one end of the screw rod.

Further: the reduction ratio of the gear reduction mechanism is 4:1.

further, the method comprises the following steps: the machine body further comprises a water collection tank located below the screen frame.

Different from the prior art, in the technical scheme, the material enters the screen frame from the feeding hole, the power device provides torque required by rotation of the screw, the first helical blade and the second helical blade on the screw extrude and dehydrate the material and convey the material to the end, far away from the feeding hole, of the screen frame, when the material comes out of the screen frame, the extruding device extrudes and dehydrates the material again, and moisture flows out through the screen holes in the screen frame; therefore, the solid content of the material is continuously improved, the dryness can reach 85 percent at most, and the continuous dehydration with better effect is realized.

Drawings

FIG. 1 is a schematic view of a double-screw extrusion filter in this embodiment;

FIG. 2 is a top view of the structure of the double screw extrusion filter of this embodiment;

FIG. 3 is a schematic view of the power unit and the screw of the present embodiment;

FIG. 4 is a schematic view of the power unit, screw and extrusion device of the present embodiment;

fig. 5 is a schematic structural diagram of the extruding apparatus in this embodiment.

Description of reference numerals:

1. a body;

11. a feed inlet; 12. a discharge port; 13. a screen frame; 14. a water collection tank; 141. a water outlet;

2. a screw;

21. a first helical blade; 22. a second helical blade;

3. a power plant;

31. a motor; 32. a gear reduction mechanism;

4. an extrusion device;

41. a telescoping mechanism; 42. a pressing plate; 43. a link mechanism; 431. a hinge joint;

5. a pipeline.

Detailed Description

To explain in detail the possible application scenarios, technical principles, and practical embodiments of the present application, and to achieve the objectives and effects thereof, the following detailed description is given with reference to the accompanying drawings. The embodiments described herein are only used for clearly illustrating the technical solutions of the present application, and therefore are only used as examples, and the scope of the present application is not limited thereby.

The recycled plastic is a plastic raw material obtained by processing and processing waste plastics by physical or chemical methods such as pretreatment, melting granulation and modification, and is used for recycling the plastics. In the processing process of the recycled plastics, an important step is to clean and dehydrate the plastic wastes. The traditional process of eliminating water by using a common drying machine has the defects of prolonging the processing time of products, losing weight of raw materials, high power consumption and the like, and increases the production cost. Therefore, before drying, the high-humidity waste plastics after cleaning are subjected to a dehydration pretreatment using a filter, and then dried after the treatment. The existing filter has poor dewatering effect due to poor layout mode among various components.

In view of the technical problem, referring to fig. 1 to 5, the present embodiment provides a double-screw extrusion filter, including:

the screw rod type water purifier comprises a machine body 1, wherein the machine body 1 is provided with a feed inlet 11, a discharge outlet 12 and a screen frame 13, the screen frame 13 is in a hollow column shape and is used for accommodating a screw rod 2, screen holes are formed in the wall of the screen frame and are used as channels for water to flow out, the feed inlet 11 is communicated with the inside of the screen frame 13, the end, far away from the feed inlet 11, of the screen frame 13 is communicated with the discharge outlet 12, and the feed inlet 11 and the discharge outlet 12 are located at two ends of the screen frame 13;

the screw 2 is arranged in the screen frame 13, the screw 2 is provided with a first helical blade 21 and a second helical blade 22 in the axial direction, the first helical blade 21 and the second helical blade 22 are both helical on the screw 2, and the first helical blade 21 and the second helical blade 22 are both used for dehydrating materials;

the power device 3 is arranged on the machine body 1 and connected with one end of the screw rod 2 and used for providing torque required by rotation of the screw rod 2, and the other end of the screw rod 2 is positioned at the end, far away from the feeding hole 11, of the screen frame 13;

and the extruding device 4 is positioned on the end, far away from the feeding hole 11, of the screen frame 13 and used for dehydrating the material.

Different from the prior art, in the technical scheme, the material enters the screen frame from the feeding hole, the power device provides torque required by rotation of the screw, the first spiral blade and the second spiral blade on the screw extrude and dehydrate the material and convey the material to the end, far away from the feeding hole, of the screen frame, when the material comes out of the screen frame, the extruding device extrudes and dehydrates the material again, and moisture flows out through the screen holes in the screen frame; therefore, the solid content of the material is continuously improved, the dryness can reach 85 percent at most, and the continuous dehydration with better effect is realized.

Referring to fig. 4 and 5, according to an embodiment of the present application, the pressing device 4 includes a telescopic mechanism 41 and a pressing plate 42. The extrusion plate 42 is arranged on the machine body 1 through a pin shaft, and the extrusion plate 42 can rotate along the pin shaft. The size of the extrusion plate 42 is matched with the size of the end, far away from the feed port 11, of the screen frame 13, so that the extrusion plate 42 can cover the end, far away from the feed port 11, of the screen frame 13, extrusion force is applied to the materials in the screen frame 13, the materials are dehydrated again, and finally, the extrusion plate 42 is opened, and the materials fall out. One end of the telescopic mechanism 41 is hinged (the hinge is generally realized by a pin) on the machine body 1, one end of the telescopic mechanism 41 can rotate along the hinge, the other end of the telescopic mechanism 41 is hinged on the extrusion plate 42, and the other end of the telescopic mechanism 41 can rotate along the hinge.

Referring to fig. 4 and 5, according to an embodiment of the present application, the telescoping mechanism 41 has a telescoping function. Telescoping mechanism 41 includes, but is not limited to: cylinder, pneumatic cylinder, electric telescopic handle etc.. When the telescopic mechanism 41 is extended, the pressing door can be pushed to move towards the end, far away from the feed port 11, of the screen frame 13, so that the pressing door covers the end, far away from the feed port 11, of the screen frame 13; when the telescopic mechanism 41 is retracted, the pressing door can be pulled to move towards the end, away from the feeding hole 11, of the screen frame 13, so that the end, away from the feeding hole 11, of the screen frame 13 is opened. Therefore, the solid content of the material is continuously improved, the dryness can reach 85 percent at most, and the continuous dehydration with better effect is realized.

Referring to fig. 4 and 5, according to an embodiment of the present application, the pressing device 4 further includes a link mechanism 43. The squeezing plate 42 is further arranged on the machine body 1 through a link mechanism 43, and the other end of the telescopic mechanism 41 is hinged on the link mechanism 43 and indirectly hinged with the squeezing plate 42. The linkage 43 comprises at least 2 articulated links, the linkage 43 having a number of links of 2, 3, 4, 5, 6, etc. The link mechanism 43 is hinged to the middle or lower end of the pressing plate 42, and the upper end of the pressing plate 42 is hinged to the base. Preferably, the linkage 43 has 2 hinged links. The telescopic mechanism 41 may be hinged at two adjacent hinged joints 431 (in fig. 5, the telescopic mechanism 41 may be hinged to the hinged joints 431 during assembly), or may be fixed to any one of the connecting rods. In this way, the swing of the compression plate 42 is more stabilized by the link mechanism 43, and the swing width of the compression plate 42 can be accurately controlled by the telescopic mechanism 41.

In some embodiments, the structure of the extrusion apparatus 4 can be referred to in the patent application No. 201720988851.0 entitled screw extrusion dewaterer.

Referring to fig. 1 to 4, according to an embodiment of the present application, the power device 3 includes a motor 31 and a gear reduction mechanism 32. The motor 31 (also known as a motor) is an electromagnetic device that converts or transmits Electric energy according to the law of electromagnetic induction, and mainly functions to generate a driving torque as a power source for the screw 2. The output shaft of the motor 31 is connected with the input end of the gear reduction mechanism 32, and the output end of the gear reduction mechanism 32 is connected with one end of the screw rod 2. If necessary, the motor 31 and the gear reduction mechanism 32 may be coupled to each other by a coupling. In some embodiments, the motor 31 is directly connected to the screw 2. The gear reduction mechanism 32 can reduce the rotation speed of the motor 31, so as to adjust the rotation speed of the screw 2 to a proper interval, which depends on the actual situation.

Referring to fig. 1-4, according to one embodiment of the present application, the gear reduction mechanism 32 includes a large gear and a small gear that mesh with each other. The diameter of the bull gear is greater than the diameter of the pinion gear, and the number of teeth on the bull gear is greater than the number of teeth on the pinion gear, and the pinion gear is as the input of gear reduction mechanism 32, and the bull gear is as the output of gear reduction mechanism 32. In some embodiments, the gear reduction mechanism 32 also has more gears, enabling more gear ratios.

According to one embodiment of the present application, the reduction ratio of the gear reduction mechanism 32 is 4:1. if the input rotating speed is 1500r/min, the output rotating speed is 375r/min; if the input rotating speed is 2000r/min, the output rotating speed is 500r/min. In some embodiments, the reduction ratio of the gear reduction mechanism 32 is 3:1, or the reduction ratio of the gear reduction mechanism 32 is 5:1. according to an embodiment of the application, the motor 31 can be a speed reduction motor, the speed reduction motor is an integrated body of a speed reducer and a motor (motor), the efficiency and the reliability are high, the service life is long, the maintenance is simple and convenient, and the application is wide.

Referring to fig. 1, according to an embodiment of the present application, the material may remain on the screen frame 13 after extrusion, and the double screw extrusion filter further includes a spraying device. The spraying device is arranged on the machine body 1, and a nozzle of the spraying device is positioned on one side of the screen frame 13 and used for cleaning the screen frame 13. Under the effect of spray set, reel 13 keeps clean, and the condition that the sieve mesh on it can not appear blockking up yet, and the material is extruded the water that breaks away from and also can flow out along the sieve mesh in time.

Referring to fig. 1, a spray device according to one embodiment of the present application includes a water source, a pump, and a pipe 5. The water source is located at one side of the machine body 1 and stores water for cleaning. A pump is a machine that delivers or pressurizes a fluid, and transfers the mechanical energy of a prime mover or other external energy to the liquid, causing the energy of the liquid to increase. The input end of the pump is connected with a water source, the output end of the pump is connected with a pipeline 5, and a spray head is arranged on the pipeline 5. The water pressurized by the pump flows to the spray head through the pipe 5 and is sprayed out of the spray head to clean the screen frame 13.

Referring to fig. 1 and 4, in an embodiment of the present application, the machine body 1 further includes a water collection tank 14, and the water collection tank 14 is located below the screen frame 13. The sieve holes are arranged in particular on the bottom of the sieve frame 13, so that water coming out of the material after extrusion flows down along the sieve holes into the water collection sump 14. A valve and a water outlet 141 are provided on the water collection tank 14, through which accumulated water can be drained.

Referring to fig. 1, according to an embodiment of the present application, the screen frame 13 is cylindrical. The screw is located at the center of the screen frame, which is disposed along the axial direction of the screen frame. The output shaft of the motor is also arranged along the axial direction of the screen frame.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or related to other embodiments specifically defined. In principle, in the present application, the technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable solution as long as there is no technical contradiction or conflict.

Unless defined otherwise, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the use of relational terms herein is intended to describe specific embodiments only and is not intended to limit the present application.

In the description of the present application, the term "and/or" is a expression for describing a logical relationship between objects, indicating that three relationships may exist, for example, a and/or B, indicating that: there are three cases of A, B, and both A and B. In addition, the character "/" herein generally indicates that the former and latter associated objects are in a logical relationship of "or".

In this application, terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation without necessarily requiring or implying any actual such relationship or order between such entities or operations.

Without further limitation, in this application, the use of "including," "comprising," "having," or other similar expressions in phrases and expressions of "including," "comprising," or "having," is intended to cover a non-exclusive inclusion, and such expressions do not exclude the presence of additional elements in a process, method, or article that includes the recited elements, such that a process, method, or article that includes a list of elements may include not only those elements but also other elements not expressly listed or inherent to such process, method, or article.

As is understood in the examination of the guidelines, the terms "greater than", "less than", "more than" and the like in this application are to be understood as excluding the number; the expressions "above", "below", "within" and the like are understood to include the present numbers. In addition, in the description of the embodiments of the present application, "a plurality" means two or more (including two), and expressions related to "a plurality" similar thereto are also understood, for example, "a plurality of groups", "a plurality of times", and the like, unless specifically defined otherwise.

In the description of the embodiments of the present application, spatially relative expressions such as "central," "longitudinal," "lateral," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used, and the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the specific embodiments or drawings and are only for convenience of describing the specific embodiments of the present application or for the convenience of the reader, and do not indicate or imply that the device or component in question must have a specific position, a specific orientation, or be constructed or operated in a specific orientation and therefore should not be construed as limiting the embodiments of the present application.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured," and "disposed" used in the description of the embodiments of the present application are to be construed broadly. For example, the connection can be a fixed connection, a detachable connection, or an integrated arrangement; it can be mechanical connection, electrical connection, and communication connection; they may be directly connected or indirectly connected through an intermediate; which may be communication within two elements or an interaction of two elements. Specific meanings of the above terms in the embodiments of the present application can be understood by those skilled in the art to which the present application pertains in accordance with specific situations.

It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, changes and modifications made to the embodiments described herein, or equivalent structures or equivalent flow changes made by using the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the scope of the present invention.

Claims (10)

1. A double-screw extrusion filter is characterized by comprising:

the machine body is provided with a feed port, a discharge port and a screen frame, the screen frame is in a hollow column shape, screen holes are arranged on the wall of the screen frame and are used as channels for water to flow out, the feed port is communicated with the inside of the screen frame, and the end, far away from the feed port, of the screen frame is communicated with the discharge port;

the screw is arranged in the screen frame and provided with a first spiral blade and a second spiral blade in the axial direction, and the first spiral blade and the second spiral blade are used for dehydrating materials;

the power device is arranged on the machine body and connected with one end of the screw rod, and the other end of the screw rod is positioned at the end, far away from the feeding hole, of the screen frame;

and the extruding device is positioned at the end, far away from the feeding hole, of the screen frame and is used for dehydrating the material.

2. A double screw extrusion filter according to claim 1 wherein: the screen frame cleaning machine further comprises a spraying device, wherein the spraying device is arranged on the machine body, and a spray head of the spraying device is located on one side of the screen frame and used for cleaning the screen frame.

3. A double screw extrusion filter according to claim 2 wherein: the spraying device comprises a water source, a pump and a pipeline, wherein the water source is positioned on one side of the machine body, the input end of the pump is connected with the water source, the output end of the pump is connected with the pipeline, and the pipeline is provided with the spray head.

4. A double screw extrusion filter according to claim 1 wherein: the extrusion device includes telescopic machanism and stripper plate, the stripper plate sets up through the round pin axle on the organism, the stripper plate size with keep away from the size looks adaptation of the end of feed inlet on the reel for the stripper plate can cover and keep away from serving of feed inlet on the reel, telescopic machanism's one end articulates on the organism, telescopic machanism's the other end articulates on the stripper plate.

5. A double screw extrusion filter according to claim 4 wherein: the extrusion device further comprises a connecting rod mechanism, the extrusion plate is further arranged on the machine body through the connecting rod mechanism, and the other end of the telescopic mechanism is hinged to the connecting rod mechanism and indirectly hinged to the extrusion plate.

6. A double screw extrusion filter according to claim 5 wherein: the linkage has 2 articulated links.

7. A double screw extrusion filter according to claim 4 wherein: the telescopic mechanism comprises one of an air cylinder, a hydraulic cylinder and an electric telescopic rod.

8. A double screw extrusion filter according to claim 1 wherein: the power device comprises a motor and a gear reduction mechanism, wherein an output shaft of the motor is connected with an input end of the gear reduction mechanism, and an output end of the gear reduction mechanism is connected with one end of the screw rod.

9. A double screw extrusion filter according to claim 8 wherein: the reduction ratio of the gear reduction mechanism is 4:1.

10. a double screw extrusion filter according to claim 1 wherein: the machine body further comprises a water collection tank located below the screen frame.

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