CN113102074A

CN113102074A - Superfine powder jet mill with sterilization function

Info

Publication number: CN113102074A
Application number: CN202110418101.0A
Authority: CN
Inventors: 杨辉顺; 陈星云; 包杰; 谢珊
Original assignee: Sichuan Shichuang Weina Technology Co ltd
Current assignee: Sichuan Shichuang Weina Technology Co ltd
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2021-07-13

Abstract

An ultra-fine powder jet mill with sterilization function comprises: a feeding mechanism, an jet grinder and a dust collector. The feeding mechanism includes a feeding hopper and a spiral feeding pipe, and the spiral feeding pipe is connected to the middle section of the air flow grinder. The dust collector is divided into an upper section, a middle section and a lower section. The upper section is connected to the induced draft fan. The upper section and the middle section are separated by a horizontally arranged partition. Connect with the upper section, and the lower section with the middle section. The side wall of the middle section includes an inner wall and an outer wall, the inner wall is made of glass, and the outer wall is made of metal. The air grinder is connected to the lower section through the conveying pipe, and the ultrafine powder classified by the impeller classification mechanism enters the dust collector from the conveying pipe, and a storage tank is arranged at the bottom of the lower section to store the ultrafine powder. The pulverized ultrafine powder can be treated with bacteria, which can reduce the number of bacteria in the ultrafine powder.

Description

Superfine powder jet mill with sterilization function

Technical Field

The invention belongs to the field of crushing machinery, and particularly relates to a superfine powder jet mill with a sterilization function.

Background

The jet mill is used as a crushing device and is widely applied to powder processing, and most of the jet mills comprise a jet mill chamber, a grading impeller, a cyclone collector, a dust remover and an induced draft fan. The raw material for producing the powder or the surface of the raw material for powder during the production, storage and transportation process can be contaminated with various bacteria, and some raw materials have many fine ravines or gaps on the surface, so that some bacteria are easily hidden in the ravines and the cavity and are not easily eliminated, and therefore, it is not favorable for completely removing the bacteria in the raw materials before the raw materials are crushed. The existing jet mill device can not carry out effective sterilization treatment after the powder raw materials are crushed into superfine powder, so that bacteria exist in the superfine powder of a finished product, and the quality of the superfine powder is influenced, especially the edible superfine powder.

Disclosure of Invention

In order to solve the defects of the prior art, the invention provides the ultrafine powder jet mill with the sterilization function, after raw materials are crushed into ultrafine powder, ultraviolet rays emitted by an ultraviolet lamp tube are utilized to eliminate bacteria in the ultrafine powder, and the number of bacteria in finished ultrafine powder can be effectively reduced.

In order to realize the purpose of the invention, the following scheme is adopted:

an ultrafine powder jet mill with a sterilization function comprises: feed mechanism, jet-flow grinder and dust remover.

The lower section of the jet mill is a fluidized bed, and the upper section is provided with an impeller grading mechanism.

The feeding mechanism comprises a feeding hopper and a spiral feeding pipe, and the spiral feeding pipe is communicated with the middle section of the jet mill.

The dust remover is upper segment, middle section and hypomere from top to bottom in proper order, and the upper segment is cylindrical structure with the middle section, and the upper segment links to each other with the draught fan, separates through the baffle that the level set up between upper segment and the middle section, and a plurality of filtration pocket are worn to be equipped with towards the midrange orientation by the baffle, and the inner chamber and the upper segment intercommunication of filtration pocket, hypomere and middle section intercommunication.

The lateral wall in middle section includes inner wall and outer wall, and inner wall and outer wall coaxial setting, inner wall adopt the glass preparation, and the outer wall adopts the metal preparation, and inner wall and outer wall interval set up, are equipped with many ultraviolet tube along the circumference between inner wall and the outer wall.

The jet mill is communicated with the lower section through a material conveying pipe, the superfine powder classified by the impeller grading mechanism enters the dust remover from the material conveying pipe, and the bottom of the lower section is provided with a storage tank for storing the superfine powder.

Further, the inner surface of the outer wall is provided with an ultraviolet reflecting layer.

Furthermore, a circle of filter mesh bags are arranged in the dust remover along the circumference, and the axis of each filter mesh bag is parallel to the axis of the dust remover in a cylindrical structure.

Further, be equipped with the round brush subassembly in the dust remover, the round brush subassembly includes the main shaft and the cylinder brush parallel with the main shaft, and the cylinder brush is equipped with at least one, and the cylinder brush links to each other with the main shaft through the horizontal pole of bottom, and the bottom of filter screen bag is located to the horizontal pole interval, and the cylinder brush is located to have clearance department between filter screen bag and the inner wall, and the brush hair and the inner wall contact of cylinder brush, main shaft and the coaxial setting of dust remover, dust remover is passed to the main shaft upper segment, and the main shaft upper end is connected in driving motor.

Furthermore, the upper end and the lower end of the inner wall and the outer wall are fixed in a pressing mode, and annular grooves are formed in the surfaces of the flanges for pressing the inner wall and the outer wall.

Furthermore, the ultraviolet lamp tube is arranged in parallel with the axis of the dust remover, and two ends of the ultraviolet lamp tube respectively penetrate through the upper end surface and the lower end surface of the middle section and are exposed outside the dust remover.

Furthermore, a valve is arranged between the lower section and the material storage tank.

Furthermore, the outer wall is formed into a circular tube type structure by bending and welding a stainless steel plate or an iron plate.

Furthermore, the inner wall is formed by splicing a plurality of pieces of glass with arc structures to form a tubular structure, and the adjacent glass side walls are bonded by adopting sealant.

Furthermore, the outlet of the material conveying pipe is inclined upwards.

The invention has the beneficial effects that:

1. the ultraviolet lamp tube is arranged in the dust remover, so that the raw materials are sterilized after being crushed by the jet mill, the bacteria can be prevented from being hidden in gullies or gaps of the raw materials, the crushed raw materials form ultrafine powder, the structure of hidden bacteria is eliminated, the bacteria are completely exposed outside, the bacteria can be killed more thoroughly, and the bacteria content in the finished ultrafine powder is further reduced.

2. The ultraviolet lamp tube is arranged in the sealed cavity between the inner wall and the outer wall, and the glass is used for projecting light rays, so that the situation that the sterilization effect is influenced because powder is attached to the outer wall of the ultraviolet lamp tube after long-term use can be prevented; meanwhile, in order to prevent the inner surface of the inner wall from being attached with powder after long-term use and influence the penetrating effect of light, a plurality of cylindrical brushes are arranged for cleaning the inner surface of the inner wall at any time to prevent the powder from being attached, and meanwhile, the inner wall of the dust remover is cleaned.

3. Simple structure, the installation is maintained conveniently, and the inner wall and the outer wall in dust remover middle section adopt the structure that the equipment compressed tightly to connect, the dismouting of being convenient for, and ultraviolet tube both ends are all worn in the outside of dust remover, and the installation and later stage of being convenient for are changed, make things convenient for the wiring simultaneously.

Drawings

The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.

Fig. 1 shows an overall appearance view of the present application;

FIG. 2 shows a top view of the present application;

FIG. 3 shows a cross-sectional view taken along the line A-A in FIG. 2;

FIG. 4 shows a partial enlarged view at A in FIG. 3;

FIG. 5 shows a partial enlarged view at B in FIG. 3;

FIG. 6 shows a front view of the present application;

FIG. 7 shows a cross-sectional view taken along the line B-B in FIG. 6;

fig. 8 shows a partial enlarged view at C in fig. 7.

The labels in the figure are: the device comprises a feeding mechanism-100, a feeding hopper-110, a spiral feeding pipe-120, an air flow grinder-200, a fluidized bed-210, an impeller grading mechanism-220, a conveying pipe-230, a dust remover-300, an annular groove-301 upper section-310, a middle section-320, an inner wall-321, an outer wall-322, a lower section-330, a partition plate-340, a storage tank-350, a valve-360, an induced draft fan-400, a filter mesh bag-500, an ultraviolet lamp tube-600, a rolling brush component-700, a main shaft-710, a cylindrical brush-720, a cross rod-730 and a driving motor-740.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, but the described embodiments of the present invention are a part of the embodiments of the present invention, not all of the embodiments 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 orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only for convenience of describing the present invention and simplifying the description. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "parallel", "perpendicular", etc. do not require that the components be absolutely parallel or perpendicular, 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; either directly or indirectly through intervening media, or through both elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 3, 6 and 7, the ultrafine air flow mill with sterilization function comprises: a feed mechanism 100, a jet mill 200, and a dust separator 300.

Specifically, the lower section of the jet mill 200 is a fluidized bed 210 for pulverizing the raw material, and the upper section is provided with an impeller classifying mechanism 220 for classifying the pulverized powder and discharging the classified ultra-fine powder into a dust collector 300.

Specifically, the feeding mechanism 100 includes a feeding hopper 110 and a spiral feeding pipe 120, the spiral feeding pipe 120 is communicated with the middle section of the jet mill 200, and the outlet of the spiral feeding pipe 120 is disposed above the fluidized bed 210 and below the impeller grading mechanism 220.

Specifically, dust remover 300 from top to bottom divide into upper segment 310 in proper order, middle section 320 and hypomere 330, upper segment 310 is cylindrical structure with middle section 320, upper segment 310 links to each other with draught fan 400, separate through the baffle 340 of level setting between upper segment 310 and the middle section 320, baffle 340 wears to be equipped with a plurality of filter screen bags 500 downwards towards middle section 320 direction, filter screen bags 500's inner chamber and upper segment 310 intercommunication, hypomere 330 and middle section 320 intercommunication, the suction of the negative pressure air that produces through draught fan 400 will upwards rise after the mixture of submicron powder and air gets into dust remover 300, through filter screen bags 500's filtration, the inner chamber will be gone into from filter screen bags 500's side to the air, then discharge from draught fan 400, part submicron powder will fall into hypomere 330 downwards and collect.

Specifically, the side wall of the middle section 320 includes an inner wall 321 and an outer wall 322, the inner wall 321 and the outer wall 322 are coaxially arranged, the inner wall 321 is made of glass, and the outer wall 322 is made of metal, so that the influence on human health caused by the light ray emitted from the ultraviolet lamp tube 600 to the outside of the dust remover 300 is avoided. The inner wall 321 and the outer wall 322 are arranged at intervals to form a sealed cavity of an annular structure, and a plurality of ultraviolet lamp tubes 600 are arranged between the inner wall 321 and the outer wall 322 along the circumference. The light of the ultraviolet lamp tube 600 penetrates through the inner wall 321 made of glass and irradiates into the dust remover 300 to sterilize the superfine powder, the mixture of the superfine powder and the air enters the upper section 320 under the suction effect of the negative pressure air generated by the induced draft fan 400, and then the light emitted by the ultraviolet lamp tube 600 is sterilized. The ultraviolet lamp 600 is disposed in the sealed cavity between the inner wall 321 and the outer wall 322 to prevent dust from attaching to the outside of the ultraviolet lamp 600 and affecting the sterilization effect.

Specifically, the jet mill 200 is communicated with the lower section 330 through the material conveying pipe 230, the superfine powder classified by the impeller classification mechanism 220 directly enters the dust remover 300 from the material conveying pipe 310, and the cyclone collector is further arranged between the jet mill 200 and the dust remover 300 in the conventional jet mill device to increase the negative pressure in the jet mill 200. The bottom of the lower section 330 is provided with a storage tank 350 for storing the superfine powder.

Preferably, the inner surface of the outer wall 322 is provided with an ultraviolet reflecting layer, so that light rays diffused towards the outer wall 322 are reflected, the ultraviolet utilization rate is improved, and the sterilization effect is improved.

Preferably, as shown in fig. 7, the filter mesh bag 500 is circumferentially provided with a circle in the dust remover 300 to form an annular structure, the filter mesh bag 500 is cylindrical, and the axis of the filter mesh bag 500 is parallel to the axis of the dust remover 300, so as to control the distance between the filter mesh bag 500 and the inner wall of the dust remover 300, and facilitate the manufacturing and installation.

Preferably, as shown in fig. 3, 7 and 8, a rolling brush assembly 700 is arranged in the dust collector 300, the rolling brush assembly 700 includes a main shaft 710 and at least one cylindrical brush 720 parallel to the main shaft, and in order to improve the stability of the rolling brush assembly 700 during rotation, two cylindrical brushes 720 may be arranged at 180 ° as shown in fig. 7, or 3 or four cylindrical brushes 720 may be uniformly arranged along the circumference. The cylindrical brush 720 is connected to the main shaft 710 through a cross bar 730 at the bottom, and the cross bar 730 is spaced at the bottom of the filter mesh bag 500 to prevent the rolling brush assembly 700 from contacting the bottom of the filter mesh bag 500 during the rotation. The cylindrical brush 720 is located at a gap between the filter mesh bag 500 and the inner wall 321, the bristles of the cylindrical brush 720 are in contact with the inner wall 321, and a gap is reserved between the cylindrical brush 720 and the filter mesh bag 500 to prevent the bristles from scratching the filter mesh bag 500. The main shaft 710 is coaxially arranged with the dust remover 300, the upper section of the main shaft 710 passes through the dust remover 300, the upper end of the main shaft 710 is connected to the driving motor 740, and the driving motor 740 is used for driving the rolling brush assembly 700 to rotate, so that the inner surface of the inner wall 321 is cleaned, and the ultraviolet sterilization effect caused by the powder attached to the inner surface of the inner wall 321 is prevented.

Preferably, the upper and lower ends of the inner wall 321 and the outer wall 322 shown in fig. 4 and 5 are fixed in a pressing manner, so as to facilitate assembly. The annular grooves 301 are formed in the surfaces of the flanges for pressing the inner wall 321 and the outer wall 322, so that the mounting stability and the mounting position of the inner wall 321 and the outer wall 322 can be improved. The sealing performance between the upper end surface and the lower end surface of the inner wall 321 and the outer wall 322 and the compression flange can be improved, and the ultra-fine powder is prevented from overflowing.

Preferably, as shown in fig. 4 to 6, the ultraviolet lamp 600 is disposed parallel to the axis of the dust remover 300, and both ends of the ultraviolet lamp 600 respectively pass through the upper and lower end surfaces of the middle section 320 and are exposed outside the dust remover 300, so that the ultraviolet lamp 600 can be conveniently installed and replaced, and the connection for installing and replacing the ultraviolet lamp 600 is convenient.

Preferably, a valve 360 is arranged between the lower segment 330 and the material storage tank 350, and when the material storage tank 350 is taken down to take materials, the valve 360 can be used for closing the blanking channel, so that the material taking operation can be completed without influencing the production.

Preferably, the outer wall 322 is a circular tube structure formed by bending and welding a stainless steel plate or an iron plate, and is simple in structure and convenient to manufacture.

Preferably, the inner wall 321 is formed into a tube structure by splicing a plurality of pieces of glass with arc structures, so that the manufacturing cost of the inner wall 321 is reduced, and the transportation is facilitated. And adjacent glass side walls are bonded by adopting a sealant so as to achieve the purpose of sealing and prevent the ultra-fine powder from entering a cavity between the inner wall 321 and the outer wall 322 from a gap.

Preferably, as shown in fig. 3, the part of the outlet of the material delivery pipe 230 located inside the lower section 330 is inclined upward, so that the ultra-fine powder enters the dust collector 300 and then moves upward first, so as to enter the irradiation range of the ultraviolet lamp 600 for sterilization treatment. So as to prevent the ultra-fine powder classified by the impeller classifying mechanism 220 from directly entering the storage tank 350 from the conveying pipe 310.

The foregoing is only a preferred embodiment of the present invention and is not intended to be exhaustive or to limit the invention. It will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention.

Claims

1. An ultrafine powder jet mill with a sterilization function comprises: a feeding mechanism (100), a jet mill (200) and a dust remover (300), characterized in that,

the lower section of the jet mill (200) is a fluidized bed (210), and the upper section is provided with an impeller grading mechanism (220);

the feeding mechanism (100) comprises a feeding hopper (110) and a spiral feeding pipe (120), and the spiral feeding pipe (120) is communicated with the middle section of the jet mill (200);

the dust remover (300) is sequentially provided with an upper section (310), a middle section (320) and a lower section (330) from top to bottom, the upper section (310) and the middle section (320) are of cylindrical structures, the upper section (310) is connected with an induced draft fan (400), the upper section (310) and the middle section (320) are separated by a horizontally arranged partition plate (340), a plurality of filter mesh bags (500) are arranged in the partition plate (340) in a penetrating manner towards the middle section (320), the inner cavities of the filter mesh bags (500) are communicated with the upper section (310), and the lower section (330) is communicated with the middle section (320);

the side wall of the middle section (320) comprises an inner wall (321) and an outer wall (322), the inner wall (321) and the outer wall (322) are coaxially arranged, the inner wall (321) is made of glass, the outer wall (322) is made of metal, the inner wall (321) and the outer wall (322) are arranged at intervals, and a plurality of ultraviolet lamp tubes (600) are arranged between the inner wall (321) and the outer wall (322) along the circumference;

the jet mill (200) is communicated with the lower section (330) through a material conveying pipe (230), the superfine powder classified by the impeller grading mechanism (220) enters the dust remover (300) from the material conveying pipe (230), and a storage tank (350) is arranged at the bottom of the lower section (330) and used for storing the superfine powder.

2. The submicron powder air flow mill with sterilization function as claimed in claim 1, characterized in that the inner surface of the outer wall (322) is provided with an ultraviolet reflection layer.

3. The ultrafine powder jet mill with the sterilization function as claimed in claim 1, wherein a circle of filter mesh bags (500) is arranged in the dust remover (300) along the circumference, and the axis of the cylindrical structure of the filter mesh bags (500) is parallel to the axis of the dust remover (300).

4. The ultrafine powder jet mill with the sterilization function according to claim 1, wherein a roller brush assembly (700) is arranged in the dust collector (300), the roller brush assembly (700) comprises a main shaft (710) and cylindrical brushes (720) parallel to the main shaft, at least one cylindrical brush (720) is arranged, the cylindrical brushes (720) are connected with the main shaft (710) through cross bars (730) at the bottom, the cross bars (730) are arranged at the bottom of the filter mesh bag (500) at intervals, gaps are formed between the filter mesh bag (500) and the inner wall (321) and between bristles of the cylindrical brushes (720) and the inner wall (321), the main shaft (710) and the dust collector (300) are coaxially arranged, the upper section of the main shaft (710) penetrates through the dust collector (300), and the upper end of the main shaft (710) is connected with the driving motor (740).

5. The ultrafine powder jet mill with the sterilization function as claimed in claim 1, wherein the upper and lower ends of the inner wall (321) and the outer wall (322) are fixed in a compression manner, and annular grooves (301) are formed on the surfaces of flanges for compressing the inner wall (321) and the outer wall (322).

6. The ultrafine powder jet mill with the sterilization function according to claim 1, wherein the ultraviolet lamp tube (600) is arranged parallel to the axis of the dust remover (300), and both ends of the ultraviolet lamp tube (600) respectively penetrate through the upper and lower end faces of the middle section (320) and are exposed outside the dust remover (300).

7. The submicron powder jet mill with sterilization function as claimed in claim 1, wherein a valve (360) is arranged between the lower section (330) and the storage tank (350).

8. The ultrafine powder jet mill with the sterilization function as claimed in claim 1, wherein the outer wall (322) is formed into a circular tube type structure by bending and welding a stainless steel plate or an iron plate.

9. The ultrafine powder jet mill with the sterilization function as claimed in claim 1, wherein the inner wall (321) is formed by splicing a plurality of pieces of glass with arc structures to form a tubular structure, and the adjacent glass side walls are bonded by using a sealant.

10. The ultra-fine powder jet mill with sterilization function as claimed in claim 1, wherein the outlet of the feed delivery pipe (230) is inclined upward.