CN109015326A - A kind of stator and depolymerizer - Google Patents

Abstract

The invention discloses a stator, which comprises an outer cylinder. The inner wall of the outer cylinder is provided with at least two layers of inner gears. The inner gears are detachably mounted on the inner wall of the outer cylinder. An annular spacer is arranged between the inner ring gears. The invention also discloses a depolymerization device. The stator provided by the present invention is detachably arranged with a multi-layer partitioned inner ring gear on the inner wall of the outer cylinder. The tooth grooves and the rotor of the inner gear ring can grind these powder particles in partitions, effectively avoiding the agglomeration of powder particles; at the same time, the inner wall of the tooth grooves of the inner gear ring can perform rotary grinding on the outer surface of the powder particles, so as to realize powder Surface modification of body particles; in addition, the separated internal gear can also prevent powder particles from being exported along a tooth groove, which can effectively extend the path length of powder particle grinding and improve the grinding quality.

Description

A stator and depolymerization device

technical field

The present invention relates to the technical field of drying equipment, and more specifically relates to a stator and a depolymerization device.

Background technique

Ultrafine dispersion is one of the important ways to improve the quality of micropowder and nanoparticles, but with the ultrafine and nanonization of micropowder particles, the smaller the particle size and the more atoms on the surface, the higher the surface energy and the adsorption effect. The stronger it is, according to the principle of minimum energy, the particles will agglomerate with each other, so that they cannot be well dispersed in the polymer matrix. At present, there are many nano-calcium carbonate products on the domestic market. They have indeed reached the nanometer level when detected under a scanning electron microscope, but in practical applications, their effect is not better than that of fine calcium carbonate. The reason is that nano-calcium carbonate has no After surface modification, the agglomeration between particles is serious, the diameter of secondary particles is far below the nanometer level, and the uniformity of particle size is poor. It can only be regarded as "nano-calcium carbonate" in name, which cannot meet the production requirements at all.

In the existing design, in order to produce powders that meet the quality requirements, it is often necessary to completely disperse the micropowder particles through a special powder deaggregation device, and then add modifiers to directional adsorb on the surface of the micropowder particles to make the surface With charge characteristics, due to the repulsion of the same charge, the micropowder particles are not easy to agglomerate and have a good dispersion effect. At present, there are some depolymerization devices in the prior art. These depolymerization devices generally include a sleeve and a rotatable rotor installed inside the sleeve. There is a gap between the inner wall of the sleeve and the outer wall of the rotor. During the process, deagglomerated and dispersed micropowder particles are obtained through the extrusion and shearing of the inner wall of the sleeve and the outer wall of the rotor. In actual operation, since the inner wall of the stator of the existing depolymerization device is a smooth cylindrical surface, during the depolymerization process of micropowder particles, the material is prone to compaction, which can easily cause blockage inside the depolymerization device, and at the same time The obtained micropowder particles are also easy to fail to meet product quality requirements due to hardening.

Contents of the invention

The technical problem to be solved by the present invention is to provide a stator. Through its structural design, the stator can effectively depolymerize the micropowder particles, prevent the internal blockage of the device, and ensure that the product quality meets the requirements.

A stator, comprising an outer cylinder, the inner wall of the outer cylinder is provided with at least two layers of inner gears, the inner gears are detachably mounted on the inner wall of the outer cylinder, and the two layers of inner gears adjacent to each other up and down An annular spacer is arranged between them.

Preferably, the inner ring gear is composed of at least two arc-shaped tooth plates.

Preferably, the arc-shaped tooth plate is provided with tooth bodies arranged at intervals, and the cross-section of the tooth bodies is a right-angled trapezoid.

Preferably, the hypotenuse and the base of the tooth body having a right-angled trapezoidal cross-section form an included angle of 30° to 60°.

The present invention also provides a depolymerization device, the depolymerization device comprises a rotor, and the stator described in any one of the above is sheathed on the rotor.

The beneficial effects of the present invention are: the stator provided by the present invention is detachably arranged with a multi-layer partitioned inner ring gear on the inner wall of the outer cylinder. Different tooth grooves, the tooth grooves and the rotor of the inner ring gear can grind these powder particles in partitions, effectively avoiding powder particle agglomeration; at the same time, the inner wall of the tooth groove of the inner ring gear can grind the outer surface of the powder particles Rotary grinding, so as to realize the surface modification of powder particles; in addition, the separated inner gear can also prevent powder particles from being exported along a tooth groove, which can effectively extend the path length of powder particle grinding and improve the grinding quality.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

Fig. 1 is the front view of the stator disclosed by the embodiment of the present invention;

Fig. 2 is a top view of the stator disclosed in the embodiment of the present invention;

Fig. 3 is a schematic structural diagram of an arc-shaped tooth plate disclosed in an embodiment of the present invention.

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them.

Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

Referring to Fig. 1 to Fig. 3, Fig. 1 to Fig. 3 provide a specific embodiment of a stator of the present invention, wherein Fig. 1 is a front view of the stator disclosed in the embodiment of the present invention; Fig. 2 is a view of the stator disclosed in the embodiment of the present invention The top view of the stator; FIG. 3 is a schematic structural view of the arc-shaped tooth plate disclosed in the embodiment of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "inner", "outer", "upper", "lower" etc. is based on the orientation or positional relationship shown in the drawings, and is only for It is convenient to describe the present invention and simplify the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the present invention.

As shown in Figures 1 to 3, the stator provided by the present invention includes an outer cylinder 1, the inner wall of the outer cylinder 1 is provided with at least two layers of inner gears 2, and the inner gears 2 are detachably mounted on the outer On the inner wall of the barrel 1, an annular spacer 3 is arranged between the two layers of inner gears 2 adjacent up and down.

During the specific implementation process, when the powder particles to be processed rotate with the rotor, the powder particles will be subjected to centrifugal force and thrown to and enter different tooth slots of the inner ring gear 2, and the tooth slots of the inner ring gear 2 and the rotor form a relative Rotate, so that the powder particles can be sheared and polished, and these powder particles can be partitioned to effectively prevent the powder particles from agglomerating.

At the same time, the inner wall of the alveolar of the inner ring gear 2 can perform rotary grinding on the outer surface of the powder particles, so as to realize the surface modification of the powder particles; in addition, the inner ring gear partitioned by the annular spacer 3 can also prevent the powder particles from The particles are exported along a tooth groove, which can effectively extend the path length of powder particle grinding and improve the grinding quality.

In this solution, the inner ring gear 2 is detachably installed on the inner wall of the outer cylinder 1, so that when the inner ring gear 2 wears and needs to be replaced, the damaged inner ring gear 2 can be disassembled and replaced in time, Can effectively save maintenance costs.

In this embodiment, in order to further save maintenance costs, preferably, the inner ring gear 2 is composed of at least two arc-shaped tooth plates 201 .

In this embodiment, in order to further optimize the deagglomeration and grinding effect of powder particles, preferably, the arc-shaped tooth plate 201 is provided with tooth bodies 202 arranged at intervals, and the cross-section of the tooth bodies 202 is a right-angled trapezoid. Preferably, the hypotenuse and the base of the tooth body 202 having a right-angled trapezoidal cross-section form an included angle of 30° to 60°.

In this way, during the rotation of the external rotor, the tooth body 202 with a right-angled trapezoidal cross-section can form a certain shear angle with the rotor, thereby further optimizing the treatment of powder particles.

The present invention also provides a depolymerization device, the depolymerization device comprises a rotor, and the stator described in any one of the above is sheathed on the rotor.

The stator and the deagglomeration device provided by the present invention have been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present invention, and the descriptions of the above embodiments are only used to help understand the method and core idea of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims (5)

1. a kind of stator, which is characterized in that including outer cylinder, the outer tube inner wall is provided at least two layers of ring gear, the internal tooth Circle is removably mounted on the outer tube inner wall, is provided with cyclic annular spacer block between the ring gear of neighbouring two layers.

2. stator according to claim 1, which is characterized in that the ring gear is made of at least two arcuation tooth plates.

3. stator according to claim 2, which is characterized in that be provided with the tooth separately arranged on the arcuation tooth plate Body, the section of the denticle are right-angled trapezium.

4. stator according to claim 3, which is characterized in that section is bevel edge and the bottom edge of the denticle of right-angled trapezium In 30 degree to 60 degree angles.

5. a kind of depolymerizer, which is characterized in that the depolymerizer includes rotor, and the rotor housing is installed with aforesaid right It is required that 1 to stator described in claim 4 any one.