CN217910819U - Narrow particle size milling equipment - Google Patents

Abstract

The utility model relates to a milling machine technical field just discloses a narrow particle diameter milling equipment, including the ACM mill, one side of ACM mill is provided with cyclone, cyclone one side is provided with collection device, one side of collection device is provided with exhaust device, be provided with the air current grader that the rotational speed is greater than ACM mill grader rotational speed between ACM mill and the cyclone. This narrow particle size milling equipment, be higher than the air classifier of ACM mill through addding the rotational speed, then the grader in the ACM mill can carry out the rotational speed and turn down the operation, it is great to prevent that high rotational speed from strikeing the tablet repeatedly in grinding the internal and leading to the fine powder proportion, and the rotational speed is higher than the air classifier of ACM mill and can carry out the second grade with the material that the ACM mill sieved and grade, stay the thick granule tablet in the organism, and the back flow through the bottom with the coarse fodder flow in again ACM mill inside grind, be favorable to improving ejection of compact precision.

Description

Narrow particle size milling equipment

Technical Field

The utility model relates to a milling machine technical field specifically is a narrow particle diameter milling equipment.

Background

The powdering efficiency of powder coatings is closely related to the cost of using the powder coating, and the particle size of the powder coating is particularly important for powdering. The ultrafine powder is light in weight, less in charge, easy to take away by recycled air and not easy to be powdered, and the coarse powder is heavy in weight and larger in gravity than the acting force of an electric field and tends to fall to the bottom of a powder chamber of a powder spraying chamber before reaching a workpiece. Therefore, the normally used powder has a particle size of 20-40, and the oversize or undersize affects the powdering, so that the more concentrated the particle size distribution of the powder coating, the better. However, the powder coatings that we routinely produce are normally distributed. The coarse powder and the fine powder are in certain proportion. The treatment of the meal is relatively easy. The separation can be achieved by selecting a finer mesh for the over coarse powder, and the reduction of the fine powder ratio can be achieved by reducing the amount of fine powder produced or separating the fine powder. The ACM mill uses a single-stage classifier to control the particle size of powder at present, and has the advantages of simple structure and high efficiency.

However, in order to meet the requirement of particle size and avoid excessive coarse powder, the rotation speed of the classifier is adjusted to be higher, the tablets repeatedly impact in the grinding body, the proportion of fine powder is larger, and if the classifier is adjusted to be slow, the coarse powder is excessive, the load of a screen is excessive, and even the screen is broken

We have therefore proposed a narrow particle size milling apparatus in order to solve the problems set out above.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To the not enough of prior art in the above-mentioned background art, the utility model aims to provide a narrow particle diameter milling equipment to solve the problem that provides in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

the utility model provides a narrow particle size milling equipment, includes the ACM mill, one side of ACM mill is provided with cyclone, cyclone one side is provided with collection device, one side of collection device is provided with exhaust device, be provided with the air classifier that the rotational speed is greater than ACM mill grader rotational speed between ACM mill and the cyclone, air classifier and ACM mill are provided with first communicating pipe, be provided with second communicating pipe between air classifier and the cyclone, be provided with third communicating pipe between cyclone and the collection device, be provided with fourth communicating pipe between collection device and the exhaust device.

Preferably, a return pipe communicated with the grinding box of the ACM grinder is arranged at the bottom of the air classifier, and a valve is arranged on the return pipe.

Preferably, a storage tank is arranged below the outlet of the cyclone separator.

Preferably, the collecting device is a dust collector, and a waste bin is arranged below the outlet of the collecting device.

Preferably, exhaust device is the draught fan, the draught fan air outlet is provided with the exhaust pipe, a plurality of through-holes have been seted up on the exhaust pipe.

Furthermore, the bottoms of the material boxes of the airflow classifier, the cyclone separator and the collecting device are funnel-shaped structures.

(III) advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that: this narrow particle diameter milling equipment:

through addding the air classifier that the rotational speed is higher than the ACM mill, then the grader in the ACM mill can carry out the rotational speed and turn down the operation, prevent that high rotational speed from leading to the fine powder proportion great with tablet repeated striking in the grinding body, and the rotational speed is higher than the air classifier of ACM mill can carry out the second grade with the material of ACM mill screening and classify, stay the coarse granule tablet in the organism, and flow into the ACM mill inside again through the back flow of bottom and grind, be favorable to improving ejection of compact precision.

Drawings

FIG. 1 is a schematic view of the narrow particle size pulverizer of the present invention;

fig. 2 is a schematic view of the local structure of the narrow-particle-diameter grinding device of the present invention.

In the figure: the device comprises an ACM (anaerobic-anoxic-oxic) mill 1, an airflow classifier 2, a cyclone separator 3, a collecting device 4, an exhaust device 5, a first communicating pipe 6, a return pipe 7, a second communicating pipe 8, a third communicating pipe 9, a fourth communicating pipe 10, an exhaust pipe 11 and a valve 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a narrow particle size milling apparatus; the air-purifying device comprises an ACM (anaerobic-anoxic-oxic-mechanical) mill 1, wherein a cyclone separator 3 is arranged on one side of the ACM mill 1, a collecting device 4 is arranged on one side of the cyclone separator 3, an exhaust device 5 is arranged on one side of the collecting device 4, an air classifier 2 is arranged between the ACM mill 1 and the cyclone separator 3, the rotating speed of the air classifier 2 is greater than that of the ACM mill 1, an air inlet of the air classifier 2 is communicated with an air outlet of the ACM mill 1 through a first communicating pipe 6, an air outlet of the air classifier 2 is communicated with an inlet of the cyclone separator 3 through a second communicating pipe 8, an outlet of the cyclone separator 3 is communicated with an inlet of the collecting device 4 through a third communicating pipe 9, a fourth communicating pipe 10 is arranged between the air inlet of the collecting device 4 and the exhaust device 5, the exhaust device 5 is a draught fan, an air outlet of the draught fan is provided with an exhaust pipe 11, and a plurality of through holes are formed in the exhaust pipe 11.

As an optimal technical solution of the utility model: the bottom of air classifier 2 is provided with back flow 7 that is linked together with ACM mill 1 mill case, is provided with valve 12 on the back flow 7, and the setting of back flow 7 makes the coarse fodder after the second grade is hierarchical can follow back flow 7 and flow into ACM mill 1 again and grind incasement portion and carry out the secondary, saves manual operation's flow, alleviates work load.

As an optimal technical solution of the utility model: the storage box is arranged below the outlet of the cyclone separator 3, so that finished products can be collected in a centralized manner, and the scattering of the finished products is prevented.

As an optimal technical solution of the utility model: the collecting device 4 is a dust collector, a waste bin is arranged below an outlet of the collecting device 4, and the dust collector can collect the superfine materials separated by the cyclone separator 3 in a centralized manner so as to process the superfine materials.

As an optimal technical solution of the utility model: the bottom of the material box of the airflow classifier 2, the cyclone separator 3 and the collecting device 4 is of a funnel-shaped structure, the funnel-shaped structure is convenient for collecting the material sheets, the material sheets are prevented from being stacked at the bottom, and the collection is more thorough.

The working principle of the embodiment is as follows: when using this narrow particle size milling equipment, the rotational speed of ACM mill 1 can carry out the proper amount and turn down, prevent that the rotational speed from too high leading to sieving a large amount of farine, and the middlings that the low rotational speed was taken out can sieve once more when passing through air classifier 2 again, because the rotational speed of air classifier 2 is greater than the grader rotational speed of ACM mill 1, can be with the great tablet of particle size along the inner wall landing to the bottom of air classifier 2 quick-witted case, rethread back flow 7 carries out the regrinding to the coarse fodder, the tablet that air classifier 2 sieved is sieved again via cyclone 3, fall into the storage tank with the finished product from the bottom export, and the subdivision gets into collection device 4, collection device 4 falls into the waste bin after concentrating the collection to the farine again, so as to handle it, communicating pipe exhaust device 5 discharges the waste gas in collection device 4 via exhaust pipe 11 through fourth 10.

The above is the operation of the whole device, and the details which are not described in detail in this specification are well known to those skilled in the art.

The electrical components presented therein may be electrically connected to an external controller, and the controller may be electrically connected to an external 220V mains, and the controller may be a computer or the like which serves as a conventionally known device for control.

Although the present invention has been described in detail with reference to the foregoing embodiments, it should be noted that, in the present invention, unless otherwise explicitly specified or limited, the terms "set", "mounted", "connected", "fixed", and the like are to be interpreted broadly, and may be, for example, either fixedly connected or detachably connected; or indirectly through an intermediary.

In the description of the present invention, 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. As used herein, "plurality" means two or more unless specifically limited otherwise.

The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art; it will be appreciated by those skilled in the art that changes may be made in the embodiments described above, or equivalents may be substituted for elements thereof.

Claims (6)

1. The narrow-particle-size grinding device comprises an ACM (acid-milling mechanical) mill (1), wherein a cyclone separator (3) is arranged on one side of the ACM mill (1), a collecting device (4) is arranged on one side of the cyclone separator (3), an air exhaust device (5) is arranged on one side of the collecting device (4), and the narrow-particle-size grinding device is characterized in that an air flow classifier (2) is arranged between the ACM mill (1) and the cyclone separator (3), the rotating speed of the air flow classifier (2) is larger than that of a classifier of the ACM mill (1), a first communicating pipe (6) is arranged between the air flow classifier (2) and the ACM mill (1), a second communicating pipe (8) is arranged between the air flow classifier (2) and the cyclone separator (3), a third communicating pipe (9) is arranged between the cyclone separator (3) and the collecting device (4), and a fourth communicating pipe (10) is arranged between the collecting device (4) and the air exhaust device (5).

2. Narrow grain size grinding apparatus according to claim 1, characterized in that the bottom of the air classifier (2) is provided with a return pipe (7) communicating with the grinding box of the ACM mill (1), the return pipe (7) being provided with a valve (12).

3. A narrow particle size milling apparatus as claimed in claim 1, characterised in that a storage bin is provided below the outlet of the cyclone (3).

4. Narrow particle size milling apparatus as in claim 1, characterized by the fact that the collecting device (4) is a dust collector, and that a waste bin is placed below the outlet of the collecting device (4).

5. The narrow-particle-size grinding device as claimed in claim 1, wherein the air exhaust device (5) is an induced draft fan, an air outlet of the induced draft fan is provided with an exhaust duct (11), and the exhaust duct (11) is provided with a plurality of through holes.

6. A narrow particle size grinding apparatus according to claim 1, characterized in that the air classifier (2), cyclone (3) and collection device (4) are funnel shaped at the bottom of the bin.

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