CN212402741U - Powder feeding device - Google Patents
Powder feeding device Download PDFInfo
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- CN212402741U CN212402741U CN202020943567.3U CN202020943567U CN212402741U CN 212402741 U CN212402741 U CN 212402741U CN 202020943567 U CN202020943567 U CN 202020943567U CN 212402741 U CN212402741 U CN 212402741U
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Abstract
The utility model provides a powder feeder relates to granulation production technical field. The device comprises a storage hopper, a vibrating screen and a steam wetting mechanism; the feed opening of the storage hopper is communicated with the feed side of the vibrating screen through a first flexible pipe fitting; the discharge side of the vibrating screen is communicated with the input port of the steam wetting mechanism; and the output port of the steam wetting mechanism is used for being communicated with the input port of the granulator. The utility model provides a prior art powdered carbon black material carry inhomogeneous technical problem.
Description
Technical Field
The utility model relates to a granulation production technical field particularly, relates to a powder feeder.
Background
In the production process of the pelletized carbon black, the powdered acetylene black and a solvent for pelletizing (including pure water or other aqueous solution added with dispersion and binder) need to be conveyed to a pelletizer for pelletizing production. The existing carbon black conveying scheme is that powder carbon black is conveyed to a feed port of a granulator by using screw conveying and is mixed with a granulating solvent. The feeding amount of the carbon black is determined by the rotating speed of the screw conveyor.
Also in the new pelletizing process, there is a steam wetting step before the powdered carbon black material enters the pelletizer, which is usually separately located after the screw conveyance before the pelletizer. As the carbon black powder belongs to a nano-grade material, the self-cohesion and the adhesive force among the particles are strong. Carbon black powder can be attached to the auger delivery epaxial and gather gradually among the auger delivery process, leads to the auger delivery space to diminish, and the conveying capacity can follow and diminish under the unchangeable prerequisite of spiral rotational speed. However, the proportioning requirement of the powdered carbon black and the granulating solvent in the carbon black granulation production is very high, and when the error is accumulated to a critical value, the phenomenon of off-standard process indexes is easily caused.
In addition, the screw conveyer conveys materials by the rotation of the screw shaft, the mode inevitably causes the condition of equipment abrasion, and the abraded trace metal impurities are easy to be mixed into the aggregated powdered carbon black and mixed with the powdered carbon black under the action of a granulator to form granular carbon black, and the metal impurities cannot be removed by using a demagnetizing device (because the trace metal impurities and the carbon black are mixed together to form granules). However, the granular carbon black has high requirements on the content of magnetic substances, generally below 50ppm, and individual products even need to be below 10 ppm.
In addition, the single steam wetting process needs the full and uniform contact of the powdery carbon black and the water vapor, and when the screw conveying is used, materials are extruded by the screw shaft, the phenomenon of blocky and nonuniform discharging can occur, so that the later period wetting effect cannot be expected.
In summary, the existing carbon black conveying scheme has the disadvantages that the powdered carbon black material is conveyed unevenly, and therefore, the particles are easy to aggregate. The particles are easy to be gathered and attached to the spiral conveying shaft, so that the phenomenon of off-standard process indexes is caused; trace metal falling from equipment abrasion is easy to combine with the gathered carbon black material into particles, so that the content of magnetic substances is not up to the standard; the gathered powdered carbon black can not be fully and uniformly contacted with the water vapor, and the phenomenon of blocky and non-uniform occurs, so that the later stage wetting effect can not reach the expectation.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a powder feeder, it can evenly just loosely carry the powder, makes the difficult gathering of powder.
The technical scheme of the utility model is realized like this:
a powder feeding device comprises a storage hopper, a vibrating screen and a steam wetting mechanism;
the feed opening of the storage hopper is communicated with the feed side of the vibrating screen through a first flexible pipe fitting;
the discharge side of the vibrating screen is communicated with the input port of the steam wetting mechanism;
and the output port of the steam wetting mechanism is used for being communicated with the input port of the granulator.
In a preferred technical solution of the present invention, the powder feeding device further comprises a nitrogen blowing mechanism;
the nitrogen blowing mechanism is connected between the vibrating screen and the steam wetting mechanism and is used for blowing the powder falling from the vibrating screen into the steam wetting mechanism.
The shale shaker passes through first flexible pipe fitting to be connected in the feed opening department of storage hopper, installs nitrogen gas blowing mechanism additional in the top that the shale shaker is close the feed opening of storage hopper, just so can guarantee that likepowder carbon black is diffusion, during even state enters into the moist mechanism of steam.
In the preferred technical solution of the present invention, in the powder feeding device, the material inlet of the vibrating screen is arranged obliquely and extends to the material outlet of the storage hopper;
one end of the nitrogen blowing mechanism is communicated with the feed opening of the storage hopper through the vibrating screen, and the other end of the nitrogen blowing mechanism is inclined downwards and extends to the input opening of the steam wetting mechanism.
The shale shaker can increase the working area of shale shaker towards the feed opening tilt up of storage hopper, and cooperation nitrogen gas blows, has improved the efficiency of feed greatly.
The utility model discloses among the technical scheme of preferred, above-mentioned powder feeder, nitrogen gas blowing mechanism's nitrogen gas blows the mouth setting and is being close to one end of the feed opening of storage hopper.
The utility model discloses among the technical scheme of preferred, above-mentioned powder feeder, nitrogen gas blow the mechanism with the input port of the moist mechanism of steam passes through the flexible pipe fitting intercommunication of second.
The utility model discloses in the technical scheme of preferred, above-mentioned powder feeder, first flexible pipe fitting and/or the flexible pipe fitting of second is flexible leather expanding ring.
In a preferred technical solution of the present invention, in the powder feeding device, the vibrating screen includes a vibrating motor and a vibrating body;
the vibration motor is connected with the vibration body and used for providing an exciting force for the vibration body.
In the preferred technical solution of the present invention, in the powder feeding device, the nitrogen blowing mechanism includes a nitrogen source, a blowing passage and a pressure reducing valve;
the nitrogen source is connected with the blowing channel through a pipeline and used for blowing nitrogen to the blowing channel;
the pressure reducing valve is arranged on the pipeline.
In a preferred technical solution of the present invention, in the powder feeding device, the steam moistening mechanism includes a moistening hopper and a plurality of steam nozzles;
the plurality of steam nozzles are arranged along the circumferential direction of the upper part of the wetting hopper.
An input port at the upper part of the wetting hopper is communicated with an output port of the nitrogen blowing mechanism through a flexible leather expanding ring, and an output port at the lower part of the wetting hopper is used for being communicated with an input port of the granulator. A plurality of steam nozzles are arranged at the upper part of the wetting hopper close to the input port and are uniformly distributed along the circumferential direction of the wetting hopper, so that carbon black powder entering the wetting hopper is fully wetted with steam.
The utility model discloses among the technical scheme of preferred, above-mentioned powder feeder, the steam spout adopts oblique spout to make steam court dampening hopper middle part sprays downwards.
The steam spout adopts oblique spout for steam can be towards the middle part of wetting hopper downwards spray, gives a power to granulator propelling movement when wetting carbon black powder, in order to guarantee that the likepowder carbon black through even wetting enters into the granulator smoothly.
The utility model has the advantages that: the utility model provides a powder feeding device, which comprises a storage hopper, a vibrating screen and a steam wetting mechanism; the feed opening of the storage hopper is communicated with the feed side of the vibrating screen through a first flexible pipe fitting; the discharge side of the vibrating screen is communicated with the input port of the steam wetting mechanism; and the output port of the steam wetting mechanism is used for being communicated with the input port of the granulator. The powder falling from the feed opening of the storage hopper falls into the feeding side of the vibrating screen through the first flexible hose, the vibrating screen flexibly connected with the first flexible hose can uniformly spread the powder during working, the powder falls from the discharge side of the vibrating screen and enters the steam wetting mechanism, and the uniformly falling powder can be fully wetted with the steam.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a first schematic structural diagram of a powder feeding device provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a powder feeding device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of the connection between the powder feeding device and the granulator provided by the embodiment of the present invention.
In the figure:
100-a storage hopper; 101-a feed opening of the storage hopper; 200-a vibrating screen; 201-a first flexible tube; 300-a steam wetting mechanism; 301-input port of the steam wetting mechanism; 302-an output port of a steam moistening mechanism; 303-steam jet; 400-nitrogen blowing means; 401-nitrogen purge port; 402-a second flexible tube; 500-granulating machine.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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, as 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 accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to 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 description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Examples
Referring to fig. 1, the present embodiment provides a powder feeding device, which includes a storage hopper 100, a vibrating screen 200 and a steam wetting mechanism 300;
the feed opening 101 of the storage hopper is communicated with the feed side of the vibrating screen 200 through a first flexible pipe fitting 201;
the discharge side of the vibrating screen 200 is communicated with an input port 301 of the steam wetting mechanism;
the output port 302 of the steam moistening mechanism is adapted to communicate with the input port of the pelletizer 500.
The powder falling from the feed opening 101 of the storage hopper falls into the feeding side of the vibrating screen 200 through the first flexible hose, the vibrating screen 200 flexibly connected with the first flexible hose can uniformly spread the powder during working, the powder falls from the discharge side of the vibrating screen 200 and enters the steam wetting mechanism 300, and the uniformly falling powder can be fully wetted with steam.
In the optional solution of this embodiment, the powder feeding device further includes a nitrogen blowing mechanism 400;
the nitrogen gas blowing mechanism 400 is connected between the vibration sieve 200 and the steam moistening mechanism 300 for blowing the powder falling from the vibration sieve 200 into the steam moistening mechanism 300.
The vibrating screen 200 is connected to the feed opening 101 of the storage hopper through a first flexible pipe fitting 201, and the nitrogen blowing mechanism 400 is additionally arranged above the vibrating screen 200 close to the feed opening 101 of the storage hopper, so that the powdery carbon black can be ensured to be in a diffused and uniform state and enter the steam wetting mechanism 300.
In the above technical solution, further, the feeding side of the vibrating screen 200 is inclined upwards and extends to the feeding opening 101 of the storage hopper;
one end of the nitrogen blowing mechanism 400 is communicated with the vibrating screen 200 at the feed opening 101 of the storage hopper, and the other end of the nitrogen blowing mechanism 400 is obliquely inclined downwards and extends to the input port 301 of the steam wetting mechanism.
Referring to fig. 2, the vibrating screen 200 is inclined upward toward the feed opening 101 of the storage hopper, so that the working area of the vibrating screen 200 can be increased, and the feeding efficiency is greatly improved by matching with nitrogen blowing.
In the above technical solution, further, the nitrogen gas blowing port 401 of the nitrogen gas blowing mechanism 400 is disposed at one end close to the feed opening 101 of the storage hopper.
To minimize the possibility of aggregation of the powder after passing through the vibrating screen 200, the present embodiment provides the nitrogen gas blowing port 401 of the nitrogen gas blowing mechanism 400 at an end near the feed opening 101 of the storage hopper. The powder uniformly dispersed by the vibrating screen 200 is accelerated to enter the steam moistening mechanism 300, and the possibility of powder aggregation can be greatly reduced due to the increase of the speed of the powder.
In the above technical solution, further, the nitrogen blowing mechanism 400 is communicated with the input port 301 of the steam wetting mechanism through a second flexible pipe 402.
If the nitrogen gas blowing mechanism 400 and the steam moistening mechanism 300 are rigidly connected, the vibration transmitted from the vibrating screen 200 may easily break the connection between the nitrogen gas blowing mechanism 400 and the steam moistening mechanism 300.
In the above technical solution, further, the first flexible pipe 201 and/or the second flexible pipe 402 is a flexible leather expanding ring.
The flexible leather expansion ring is a pipe fitting, so that powder falling from the feed opening 101 of the storage hopper can conveniently pass through the flexible leather expansion ring, and the pipe wall of the flexible leather expansion ring can be contracted so as to meet the requirement of flexible connection between the vibrating screen 200 and the storage hopper 100.
In an alternative of this embodiment, the vibrating screen 200 includes a vibrating motor and a vibrating body;
the vibration motor is connected with the vibration body and used for providing an exciting force for the vibration body.
An exciting force is provided for the vibrating body through the vibrating motor, the exciting force can be adjusted linearly, and the vibrating state of the vibrating body is adjustable.
In an alternative of the present embodiment, the nitrogen gas blowing mechanism 400 includes a nitrogen gas source, a blowing passage, and a pressure reducing valve;
the nitrogen source is connected with the blowing channel through a pipeline and used for blowing nitrogen to the blowing channel;
the pressure reducing valve is arranged on the pipeline.
In the long-term auger delivery process, the carbon black powder can be attached to the auger delivery epaxial and gather gradually to lead to the auger delivery space to diminish, the conveying capacity can follow and diminish under the unchangeable prerequisite of spiral rotational speed. In the present embodiment, the blowing force of the nitrogen gas blowing mechanism 400 is controlled by the pressure reducing valve based on the addition of the nitrogen gas blowing mechanism 400, and the delivery amount can be adjusted according to actual conditions.
In an alternative of this embodiment, the steam moistening mechanism 300 comprises a moistening hopper and a plurality of steam vents 303;
a plurality of the steam vents 303 are arranged along the circumference of the upper part of the wetting hopper.
In this embodiment, the input port of the upper portion of the wetting hopper is communicated with the output port of the nitrogen blowing mechanism 400 through the flexible leather expanding ring, and the output port of the lower portion of the wetting hopper is used for being communicated with the input port of the pelletizer 500. A plurality of steam nozzles 303 are arranged at the upper part of the wetting hopper close to the input port, and the steam nozzles 303 are uniformly distributed along the circumferential direction of the wetting hopper, so that carbon black powder entering the wetting hopper is fully wetted with steam.
In the above technical solution, further, the steam nozzle 303 adopts an inclined nozzle, so that steam is sprayed downwards towards the middle of the wetting hopper.
Referring to fig. 3, the steam nozzle 303 is an inclined nozzle, so that steam can be sprayed downward toward the middle of the wetting hopper, and a pushing force is applied to the pelletizer 500 while wetting the carbon black powder, so as to ensure that the uniformly wetted carbon black powder can smoothly enter the pelletizer 500.
To sum up, the powder feeder that this embodiment provided adopts rectilinear vibrating screen 200 cooperation nitrogen gas to blow, has realized that the powder feed volume is linear adjustable, the powder is even and transport loosely, prevents that the carbon black powder from being attached to on the auger delivery axle and gathering gradually among the screw conveying process, avoids reducing because of the spiral space results in the delivery capacity to diminish, simultaneously, because the difficult gathering of powder, has also effectively avoided the magnetic substance pollution that mechanical transport caused. Even if the phenomenon that the carbon black powder is accumulated on the screw shaft occurs, the conveying amount can be adjusted by the nitrogen gas blowing mechanism 400. In addition, the structure of the steam moistening mechanism 300 in the present embodiment fully exerts the powder moistening effect, and greatly reduces the off-target particle size.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A powder feeding device is characterized by comprising a storage hopper, a vibrating screen and a steam wetting mechanism;
the feed opening of the storage hopper is communicated with the feed side of the vibrating screen through a first flexible pipe fitting;
the discharge side of the vibrating screen is communicated with the input port of the steam wetting mechanism;
and the output port of the steam wetting mechanism is used for being communicated with the input port of the granulator.
2. The powder feeding device according to claim 1, further comprising a nitrogen blowing mechanism;
the nitrogen blowing mechanism is connected between the vibrating screen and the steam wetting mechanism and is used for blowing the powder falling from the vibrating screen into the steam wetting mechanism.
3. The powder feeding device of claim 2, wherein the feeding material of the vibrating screen is inclined upwards and extends to the discharging opening of the storage hopper;
one end of the nitrogen blowing mechanism is communicated with the feed opening of the storage hopper through the vibrating screen, and the other end of the nitrogen blowing mechanism is inclined downwards and extends to the input opening of the steam wetting mechanism.
4. The powder feeding device according to claim 3, wherein the nitrogen gas blowing port of the nitrogen gas blowing mechanism is provided at an end close to the feed opening of the storage hopper.
5. The powder feeding device of claim 4, wherein the nitrogen blowing mechanism is in communication with the input port of the steam moistening mechanism via a second flexible tube.
6. The powder feeding device of claim 5, wherein the first flexible tube and/or the second flexible tube is a flexible bellows.
7. The powder feeding device of claim 1, wherein the vibrating screen comprises a vibrating motor and a vibrating body;
the vibration motor is connected with the vibration body and used for providing an exciting force for the vibration body.
8. The powder feeding device according to claim 2, wherein said nitrogen gas blowing means comprises a nitrogen gas source, a blowing passage, and a pressure reducing valve;
the nitrogen source is connected with the blowing channel through a pipeline and used for blowing nitrogen to the blowing channel;
the pressure reducing valve is arranged on the pipeline.
9. The powder feeding device of claim 1, wherein said vapor wetting mechanism comprises a wetting hopper and a plurality of vapor jets;
the plurality of steam nozzles are arranged along the circumferential direction of the upper part of the wetting hopper.
10. The powder feeding device of claim 9, wherein the steam jet is an inclined jet to direct steam downward toward the middle of the moistening hopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020943567.3U CN212402741U (en) | 2020-05-28 | 2020-05-28 | Powder feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020943567.3U CN212402741U (en) | 2020-05-28 | 2020-05-28 | Powder feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212402741U true CN212402741U (en) | 2021-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020943567.3U Active CN212402741U (en) | 2020-05-28 | 2020-05-28 | Powder feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212402741U (en) |
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2020
- 2020-05-28 CN CN202020943567.3U patent/CN212402741U/en active Active
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