CN114602800A

CN114602800A - Raw material screening machine for plastic production

Info

Publication number: CN114602800A
Application number: CN202210400430.7A
Authority: CN
Inventors: 刘帅
Original assignee: Cangzhou Sheng Feng Plasthetics Co ltd
Current assignee: Cangzhou Sheng Feng Plasthetics Co ltd
Priority date: 2022-04-16
Filing date: 2022-04-16
Publication date: 2022-06-10
Anticipated expiration: 2042-04-16
Also published as: CN114602800B

Abstract

The invention relates to the technical field of screening equipment, in particular to a raw material screening machine for plastic production; the device has a scientific and reasonable structure, can finish the classified screening of raw materials once, improves the screening effect and efficiency of granular raw materials, and effectively reduces the energy consumption of equipment; the automatic grading machine comprises a base, screw conveyer, the air-blower, the riser, toper cloth cover, annular gas distribution pipe and classifying screen, screw conveyer, the equal fixed mounting of air-blower is on the base, riser fixed mounting is in the output of air-blower, toper cloth cover fixed mounting is in the top of riser, toper cloth cover is located under the screw conveyer output, annular gas distribution pipe fixed mounting is in toper cloth cover, the input of annular gas distribution pipe and the output intercommunication of riser, be provided with the blast pipe of multiunit equipartition on the annular gas distribution pipe, blast pipe circumference equipartition is covered in toper cloth, classifying screen installs on the riser, the central axis of classifying screen coincides with the central axis of riser.

Description

Raw material screening machine for plastic production

Technical Field

The invention relates to the technical field of screening equipment, in particular to a raw material screening machine for plastic production.

Background

As is well known, a raw material screening machine for plastic production is a device for screening raw materials with different particle sizes; the existing raw material sieving machine for plastic production mostly adopts a vibrating screen or a drum screen; grading and screening the granular raw materials through a vibrating screen or a drum screen; in use, the existing raw material screening machine for plastic production is complex in structure, and needs to repeatedly screen granular raw materials for many times, so that the grading screening effect of the granular raw materials is influenced; the equipment has large energy consumption and certain use limitation.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the raw material sieving machine for plastic production, which has a scientific and reasonable structure, can finish the grading sieving of raw materials once, improve the sieving effect and efficiency of granular raw materials and effectively reduce the energy consumption of equipment.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: the spiral conveyer and the air blower are fixedly arranged on the base, the vertical pipe is fixedly arranged at the output end of the air blower, the conical distribution cover is fixedly arranged at the top of the vertical pipe and is positioned right below the output end of the spiral conveyer, the annular distribution pipe is fixedly arranged in the conical distribution cover, the input end of the annular distribution pipe is communicated with the output end of the vertical pipe, a plurality of groups of uniformly distributed blast pipes are arranged on the annular distribution pipe and are circumferentially and uniformly distributed on the conical distribution cover, the classifying screen is arranged on the vertical pipe, the central axis of the classifying screen is coincided with the central axis of the vertical pipe, and a plurality of groups of uniformly distributed annular concave screen partitions are arranged on the classifying screen; the hole pitch on the annular concave screening area close to the stand pipe is gradually increased compared with the hole pitch on the annular concave screening area far away from the stand pipe.

Preferably, the grading sieve further comprises a plurality of groups of tension springs, an annular opening is formed in the middle of the grading sieve, the vertical pipe penetrates through the annular opening, and the grading sieve is elastically connected with the vertical pipe through the tension springs.

Preferably, a plurality of groups of vibration reinforcing plates which are arranged in a staggered manner are arranged on the inner wall of the vertical pipe from top to bottom; the vibration enhancing plate is arranged at the middle upper part in the vertical pipe.

Preferably, the dust collector further comprises a dust hood and a dust suction pipe, wherein the dust hood is mounted at the output end of the screw conveyor, the dust suction pipe is mounted on the dust hood, and the dust hood is arranged on the conical cloth cover.

Preferably, still include eccentric collecting hopper, eccentric collecting hopper fixed mounting is on the base, eccentric collecting hopper is located the classifying screen below, the eccentric department in bottom of eccentric collecting hopper installs first row of material pipe.

Preferably, the screening device further comprises a second discharge pipe communicated with the bottoms of the multiple groups of annular concave screening areas, and the output ends of the multiple groups of second discharge pipes face towards different directions.

Preferably, the device also comprises a vibration motor, wherein the vibration motor is arranged on the classifying screen; preferably, the vibrating motors are two groups, and the two groups of vibrating motors are symmetrically arranged on the classifying screen.

(III) advantageous effects

Compared with the prior art, the invention provides a raw material screening machine for plastic production, which has the following beneficial effects: the raw material sieving machine for plastic production lifts and transports the granular materials through the screw conveyor, the granular materials fall to the conical distribution cover, the air blower pressurizes the air and blows the air out through the vertical pipe and the annular air distribution pipe, and because the granular materials are different in size and quality, under the action of horizontal wind power, different particle materials move along different parabolic tracks, so that the large particle materials fall to an annular concave sieve area close to the stand pipe, the small particle materials fall into the annular concave sieve area far away from the vertical pipe, and the vertical pipe generates vibration under the blast action of the blower, thereby driving the grading sieve to vibrate, the grading sieve carries out secondary screening on the granular materials in each annular concave screening area, the grading screening of raw materials can be accomplished to the completion granule material, and structure scientific and reasonable improves granule raw materials screening effect and efficiency, effectively reduces the equipment energy consumption once.

Drawings

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

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention;

FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 2 in accordance with the present invention;

in the drawings, the reference numbers: 1. a base; 2. a screw conveyor; 3. a blower; 4. a riser; 5. a conical cloth cover; 6. an annular gas distribution pipe; 7. grading and screening; 8. a blast pipe; 9. an annular concave sieve partition; 10. a tension spring; 11. a vibration-enhancing plate; 12. a dust collection cover; 13. a dust collection pipe; 14. an eccentric aggregate bin; 15. a first discharging pipe; 16. a second discharge pipe; 17. a vibration motor.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Referring to fig. 1-4, the raw material sieving machine for plastic production of the present invention comprises a base 1, a screw conveyor 2, an air blower 3, a vertical pipe 4, a conical material distribution cover 5, an annular gas distribution pipe 6 and a classifying screen 7, wherein the screw conveyor 2 and the air blower 3 are both fixedly installed on the base 1, the vertical pipe 4 is fixedly installed at the output end of the air blower 3, the conical material distribution cover 5 is fixedly installed at the top of the vertical pipe 4, the conical material distribution cover 5 is positioned right below the output end of the screw conveyor 2, the annular gas distribution pipe 6 is fixedly installed in the conical material distribution cover 5, the input end of the annular gas distribution pipe 6 is communicated with the output end of the vertical pipe 4, a plurality of groups of uniformly distributed blast pipes 8 are arranged on the annular gas distribution pipe 6, the blast pipes 8 are circumferentially and uniformly distributed on the conical material distribution cover 5, the classifying screen 7 is installed on the vertical pipe 4, and the central axis of the classifying screen 7 coincides with the central axis of the vertical pipe 4, a plurality of groups of uniformly distributed annular concave screening areas 9 are arranged on the classifying screen 7; the hole pitch on the annular concave screening area 9 close to the stand pipe 4 is gradually increased compared with the hole pitch on the annular concave screening area 9 far away from the stand pipe 4; the screen hole pitch on each annular concave screening area 9 is different, so that each particle material meeting the screening requirement is respectively reserved in the corresponding annular concave screening area 9, and the grading requirements of the particle materials with different particle sizes and qualities are met.

Specifically, the grading sieve comprises a plurality of groups of tension springs 10, wherein an annular opening is formed in the middle of the grading sieve 7, the vertical pipe 4 penetrates through the annular opening, and the grading sieve 7 is elastically connected with the vertical pipe 4 through the tension springs 10; classifying screen 7 is connected through extension spring 10 with riser 4, can further improve classifying screen 7's low amplitude high frequency vibration effect to the realization is to better screening classification effect of particulate matter material.

Specifically, a plurality of groups of vibration reinforcing plates 11 which are arranged in a staggered manner are arranged on the inner wall of the vertical pipe 4 from top to bottom; the vibration enhancing plate 11 is arranged at the middle upper part in the vertical pipe 4; through vibration reinforcing plate 11, can form the windage to the air that flows in riser 4, the air that flows forms "hammering effect" to vibration reinforcing plate 11 to make vibration reinforcing plate 11 produce the vibration, in order to strengthen riser 4 and drive the vibration effect of classifying screen 7, further improve the abundant screening effect of grading to particulate material.

Specifically, the spiral conveyer further comprises a dust hood 12 and a dust suction pipe 13, wherein the dust hood 12 is installed at the output end of the spiral conveyer 2, the dust suction pipe 13 is installed on the dust hood 12, and the dust hood 12 is covered on the conical cloth cover 5.

Specifically, the device also comprises an eccentric collecting hopper 14, wherein the eccentric collecting hopper 14 is fixedly arranged on the base 1, the eccentric collecting hopper 14 is positioned below the grading sieve 7, and a first discharging pipe 15 is arranged at the eccentric position of the bottom of the eccentric collecting hopper 14; the screened particle materials can be collected in a centralized way through the eccentric collecting hopper 14, and after the materials are discharged through the first discharging pipe 15, the partial materials can be sent to the input end of the screw conveyer 2, and are screened in a grading way again; further, can be with the output of first row of material pipe 15 and screw conveyer 2's input intercommunication, screw conveyer 2's input is less than first row of material pipe 15's output to the material is retrieved in the automation of realization, reduces the manual operation volume.

Specifically, the device also comprises a second discharge pipe 16 communicated with the bottoms of the multiple groups of annular concave screening areas 9, and the output ends of the multiple groups of second discharge pipes 16 face towards different directions; furthermore, a discharge valve is arranged on the second discharge pipe 16, when the particle materials in different annular concave screening areas 9 are discharged, the grading screen 7 can be pressed towards one side of the corresponding second discharge pipe 16, so that the grading screen 7 is inclined towards the corresponding second discharge pipe 16, the materials in the annular concave screening areas 9 are fully discharged, and the residues of the materials in the annular concave screening areas 9 are reduced.

Specifically, the device also comprises a vibration motor 17, wherein the vibration motor 17 is arranged on the classifying screen 7; preferably, the two groups of vibration motors 17 are arranged, and the two groups of vibration motors 17 are symmetrically arranged on the classifying screen 7; through the setting of two sets of vibrating motor 17, can realize the balanced vibration of classifying screen 7, further strengthen the vibration effect of classifying screen 7 to guarantee the abundant screening to the material.

When the device is used, the particle materials are lifted and guided by the screw conveyor 2, the particle materials fall to the conical cloth cover 5, the air blower 3 pressurizes air and then blows out the air through the vertical pipe 4 and the annular air distribution pipe 6, the particle materials are different in size and quality, under the action of horizontal wind, different particle materials move along different parabolic tracks, and therefore large particle materials fall to the annular concave screen partition 9 close to the vertical pipe 4, small particle materials fall to the annular concave screen partition 9 far away from the vertical pipe 4, the vertical pipe 4 vibrates under the action of the blowing of the air blower 3, the classifying screen 7 is driven to vibrate, the classifying screen 7 screens the particle materials in the annular concave screen partitions 9 again, and classifying screen of the particle materials is completed.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

It should be readily understood that "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest sense such that "on … …" means not only "directly on something", but also includes the meaning of "on something" with intervening features or layers therebetween, and "above … …" or "above … …" includes not only the meaning of "above something" or "above" but also includes the meaning of "above something" or "above" with no intervening features or layers therebetween (i.e., directly on something).

Furthermore, spatially relative terms, such as "below," "lower," "above," "upper," and the like, may be used herein for ease of description to describe one element or feature's illustrated relationship to another element or feature. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly as well.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. The raw material screening machine for plastic production is characterized by comprising a base (1), a spiral conveyor (2), an air blower (3), a vertical pipe (4), a conical cloth cover (5), an annular air distribution pipe (6) and a classifying screen (7), wherein the spiral conveyor (2) and the air blower (3) are fixedly installed on the base (1), the vertical pipe (4) is fixedly installed at the output end of the air blower (3), the conical cloth cover (5) is fixedly installed at the top of the vertical pipe (4), the conical cloth cover (5) is positioned under the output end of the spiral conveyor (2), the annular air distribution pipe (6) is fixedly installed in the conical cloth cover (5), the input end of the annular air distribution pipe (6) is communicated with the output end of the vertical pipe (4), and a plurality of groups of uniformly distributed blast pipes (8) are arranged on the annular air distribution pipe (6), the blast pipe (8) circumference equipartition is on toper cloth cover (5), classifying screen (7) are installed on riser (4), the central axis of classifying screen (7) and the central axis coincidence of riser (4), be provided with annular indent screening district (9) of multiunit equipartition on classifying screen (7).

2. The raw material screening machine for plastic production as claimed in claim 1, further comprising a plurality of groups of tension springs (10), wherein an annular opening is formed in the middle of the classifying screen (7), the vertical pipe (4) penetrates through the annular opening, and the classifying screen (7) is elastically connected with the vertical pipe (4) through the tension springs (10).

3. The raw material screening machine for plastic production is characterized in that a plurality of groups of vibration reinforcing plates (11) which are arranged in a staggered mode are arranged on the inner wall of the vertical pipe (4) from top to bottom.

4. The raw material screening machine for plastic production is characterized by further comprising a dust collection cover (12) and a dust collection pipe (13), wherein the dust collection cover (12) is mounted at the output end of the spiral conveyor (2), the dust collection pipe (13) is mounted on the dust collection cover (12), and the dust collection cover (12) is covered on the conical cloth cover (5).

5. The raw material screening machine for plastic production is characterized by further comprising an eccentric aggregate bin (14), wherein the eccentric aggregate bin (14) is fixedly arranged on the base (1), the eccentric aggregate bin (14) is positioned below the classifying screen (7), and a first discharging pipe (15) is arranged at the eccentric position of the bottom of the eccentric aggregate bin (14).

6. A raw material screening machine for plastics production according to claim 5, further comprising a second discharge conduit (16) communicating with the bottom of the plurality of sets of annular concave screening areas (9), the output ends of the plurality of sets of second discharge conduits (16) being oriented differently.

7. A plastics production raw material screening machine according to claim 6, characterized by further comprising a vibration motor (17), the vibration motor (17) being mounted on the classifying screen (7).