Multi-stage green silicon carbide micro-powder particle multi-stage screening device

Abstract

The utility model relates to the technical field of multi-stage screening devices, in particular to a multi-stage green silicon carbide micro powder particle screening device which comprises a vertical screening cylinder which is vertically arranged, the top and the bottom of the vertical screening cylinder are communicated with the outside, and a plurality of discharging hoppers are fixedly installed on the left side cylinder body and the right side cylinder body of the vertical screening cylinder. The vertical screening barrel is provided with a blowing screening assembly, the blowing screening assembly comprises an air inlet barrel, the air outlet end of the air inlet barrel is fixedly provided with a ventilation pipe, the ventilation pipe is fixedly provided with a left vertical pipe and a right vertical pipe, and the two vertical pipes are located on the left side and the right side of the vertical screening barrel correspondingly; a plurality of air outlet pipes are fixedly installed on the vertical pipe, fans are fixedly installed in the air outlet pipes, the air outlet pipes are fixedly installed on the vertical screening cylinder, and the air outlet pipes and the corresponding discharging hoppers are located on the opposite sides. The screening device facilitates screening operation and has a good screening effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to multistage screening device technical field, concretely relates to a multistage green silicon carbide micro powder particle multistage screening device. BACKGROUND

[0002] Green silicon carbide micro powder plays a key role in the fields such as precision grinding, polishing, semiconductor manufacturing and high-grade refractory material preparation due to characteristics such as high hardness and high wear resistance, and the uniformity and accurate grading of its particle size directly determine the performance of the product in various application scenarios, therefore, efficient and accurate screening technology is the core link to guarantee the quality of green silicon carbide micro powder.

[0003] At present, the traditional green silicon carbide micro powder screening equipment mostly adopts single-layer screen design, relies on gravity or simple vibration to promote material screening, this way not only has low screening efficiency and cannot meet large-scale production demand, but also has insufficient screening precision and cannot effectively separate micro powder particle sizes meeting different industrial standards, resulting in uneven product quality.

[0004] Some equipment such as vibrating screen with multistage screening structure is also used, which is installed with multiple layers of screening and cooperates with vibration to perform screening operation, but most vibrating screens can only be used to screen relatively large particles, since green silicon carbide micro powder particles are mostly in powder form and have small particle size, and the particles are prone to stick together, it is difficult to achieve good screening effect by using conventional vibrating screen. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a multistage green silicon carbide micro powder particle multistage screening device to solve the defects in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] The utility model provides a kind of multistage green silicon carbide micro powder particle multistage screening device, including vertical screening cylinder which is vertically arranged and top and bottom are connected with outside, the left and right sides of the vertical screening cylinder are fixedly installed with multiple discharge hoppers for discharging, the discharge end of each discharge hopper is communicated with different material receiving sites outside, the vertical screening cylinder is provided with air blowing screening assembly for air blowing towards discharge hopper site and screening, the air blowing screening assembly includes air inlet cylinder, the air outlet end of the air inlet cylinder is fixedly installed with air pipe, the air pipe is fixedly installed with left and right two vertical pipes which are symmetrical with each other, two vertical pipes are located at the left and right sides of the vertical screening cylinder respectively, the vertical pipe is fixedly installed with multiple air outlet pipes, fan is fixedly installed in the air outlet pipe, the air outlet pipe is fixedly installed on the vertical screening cylinder, and the air outlet pipe and corresponding discharge hopper are located on opposite sides.

[0008] Preferably, the air outlet pipe is fixedly installed with a valve, and the air speed in the multiple air outlet pipes from top to bottom increases sequentially.

[0009] This arrangement realizes multistage screening operation on green silicon carbide micro powder particles from top to bottom.

[0010] Preferably, the air inlet end of the air inlet cylinder is detachably connected with a fixing ring, and the center position of the fixing ring is provided with a filter screen.

[0011] This arrangement can filter the incoming air to avoid pollution.

[0012] Preferably, the bottom end of the vertical screening cylinder is fixedly installed with a supporting base, and the bottom of the supporting base is fixedly installed with multiple supporting legs.

[0013] Preferably, the distance between the bottom end of the vertical screening cylinder and the ground is greater than 30 cm, and the bottom end of the supporting leg is fixedly installed with a fixed base.

[0014] Preferably, the top of the vertical screening cylinder is provided with a feeding assembly, the feeding assembly includes a feeding hopper fixedly installed on the top surface of the vertical screening cylinder, and the feeding hopper is provided with a spiral feeder.

[0015] This arrangement can use the spiral feeder to transport green silicon carbide micro powder particles.

[0016] Preferably, the top surface center position of the feeding hopper is fixedly installed with a stirring motor, the output shaft end of the stirring motor is fixedly installed with a long shaft, the long shaft is fixedly installed with a dispersion blade, and the dispersion blade is located in the feeding hopper.

[0017] This arrangement can disperse green silicon carbide micro powder particles, promoting more uniform air screening.

[0018] As preferred, the discharge end of the screw feeder is fixedly installed with a discharge pipe, the discharge pipe is fixedly installed on the feeding hopper, and the end of the discharge pipe extends to the position close to the center of the dispersion blade;

[0019] The arrangement can better transport the raw materials to the position close to the dispersion blade for dispersion operation.

[0020] Compared with the prior art, the utility model has the advantages that:

[0021] 1、The utility model discloses a vertical screen cylinder, a discharge hopper, a supporting base, a supporting leg, a fixed base, a feeding assembly, a dispersion blade, a screw feeder, a blowing and screening assembly, an air inlet cylinder, a ventilation pipe, a vertical pipe and a plurality of air outlet pipes with fans are provided.

[0022] 2、The utility model discloses a vertical screen cylinder, a discharge hopper, a supporting base, a supporting leg, a fixed base, a feeding assembly, a dispersion blade, a screw feeder, a blowing and screening assembly, an air inlet cylinder, a ventilation pipe, a vertical pipe and a plurality of air outlet pipes with fans are provided.

[0023] 3、The utility model discloses a vertical screen cylinder, a discharge hopper, a supporting base, a supporting leg, a fixed base, a feeding assembly, a dispersion blade, a screw feeder, a blowing and screening assembly, an air inlet cylinder, a ventilation pipe, a vertical pipe and a plurality of air outlet pipes with fans are provided. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the whole structure schematic diagram of the utility model;

[0025] Figure 2 It is the structure schematic diagram of blowing and screening assembly of the utility model;

[0026] Figure 3 It is the explosion structure schematic diagram of blowing and screening assembly of the utility model;

[0027] The meaning of each reference numeral in the drawing is as follows:

[0028] 1、Vertical screen cylinder;10、Discharge hopper;11、Supporting base;12、Supporting leg;121、Fixed base;

[0029] 2, feed assembly; 20, feed hopper; 21, stirring motor; 22, long shaft; 23, dispersion blade; 24, screw feeder; 25, discharge pipe;

[0030] 3, air blowing and screening assembly; 30, air inlet cylinder; 31, fan; 32, fixed ring; 321, filter screen; 33, ventilation pipe; 34, vertical pipe; 35, air outlet pipe; 351, valve. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] Please refer to Figures 1-3 The present application provides a technical solution: a multi-stage green silicon carbide micro-powder particle multi-stage screening device, which comprises a vertical screening cylinder 1 arranged vertically and having a top and a bottom both connected to the outside, a plurality of discharge hoppers 10 for discharging are fixedly installed on the left and right side cylinder bodies of the vertical screening cylinder 1, and the discharge end of each discharge hopper 10 is connected to different material receiving parts outside, so that the green silicon carbide micro-powder particles screened can be discharged and collected according to different particle size specifications, realizing the graded discharge of micro-powder particles and achieving the effect of meeting different industrial needs and improving the applicability of micro-powder products.

[0033] In the present embodiment, an air blowing and screening assembly 3 for blowing air towards the discharge hopper 10 for screening is arranged on the vertical screening cylinder 1, the air blowing and screening assembly 3 comprises an air inlet cylinder 30, a ventilation pipe 33 is fixedly installed at the air outlet end of the air inlet cylinder 30, two vertical pipes 34 symmetrically arranged on the left and right are fixedly installed on the ventilation pipe 33, the two vertical pipes 34 are respectively arranged on the left and right sides of the vertical screening cylinder 1, a plurality of air outlet pipes 35 are fixedly installed on the vertical pipes 34, a fan 31 is fixedly installed in the air outlet pipe 35, the air outlet pipe 35 is fixedly installed on the vertical screening cylinder 1, and the air outlet pipe 35 and the corresponding discharge hopper 10 are on opposite sides, so that the air force generated by the fan 31 screens the micro-powder particles in the direction of the discharge hopper 10, changes the traditional screening method relying on the screen, and realizes efficient air force screening according to the characteristics of the micro-powder particles that are easy to stick and have small particle size, achieving the effect of improving the screening efficiency and precision.

[0034] Specifically, the valve 351 is fixedly installed on the air outlet pipe 35, the air speed in the plurality of air outlet pipes 35 from top to bottom increases in turn, and the operator can adjust the wind power through the valve 351 according to the actual particle size of the micro-powder particles, so as to realize multi-stage screening of the green silicon carbide micro-powder particles from top to bottom, and achieve the effects of accurately controlling the screening particle size and adapting to different screening requirements.

[0035] As shown in Figure 3 , the air inlet end of the air inlet cylinder 30 is detachably connected with a fixing ring 32, and the center position of the fixing ring 32 is provided with a filter screen 321, which can effectively filter the air entering the screening device and prevent foreign matters from mixing into the green silicon carbide micro-powder, so as to realize the purification operation of the entering air and achieve the effects of ensuring the quality of the micro-powder product and avoiding pollution.

[0036] As shown in Figure 1 , the bottom end of the vertical screening cylinder 1 is fixedly installed with a supporting base 11, and the bottom of the supporting base 11 is fixedly installed with a plurality of supporting legs 12. The distance between the bottom end of the vertical screening cylinder 1 and the ground is greater than 30 cm, and the bottom end of the supporting leg 12 is fixedly installed with a fixed base 121, which enhances the stability of the equipment, facilitates the maintenance and cleaning work of the bottom of the equipment, realizes the stable support of the screening device, and achieves the effects of ensuring the normal operation of the equipment and prolonging the service life.

[0037] As shown in Figure 1 , the top of the vertical screening cylinder 1 is provided with a feeding assembly 2, and the feeding assembly 2 comprises a feeding hopper 20 fixedly installed on the top surface of the vertical screening cylinder 1. The feeding hopper 20 is provided with a screw feeder 24, which is used to convey the green silicon carbide micro-powder particles from the feeding hopper 20 into the vertical screening cylinder 1. Compared with the traditional manual feeding method, the feeding is more convenient, which improves the feeding efficiency and reduces the labor intensity.

[0038] As shown in Figure 1 , the top surface of the feeding hopper 20 is fixedly installed with a stirring motor 21 at the center position, the output shaft of the stirring motor 21 is fixedly installed with a long shaft 22 at the end, and the long shaft 22 is fixedly installed with a dispersion blade 23. The dispersion blade 23 is located in the feeding hopper 20, and the stirring motor 21 drives the dispersion blade 23 to rotate, disperses the micro-powder particle raw materials in the feeding hopper 20, fully loosens the micro-powder particles which are prone to stick, realizes the pretreatment and dispersion of the micro-powder particle raw materials, and provides uniform materials for subsequent wind screening and improves the uniformity of screening.

[0039] As shown in Figure 1As shown, the discharge end of the screw feeder 24 is fixedly installed with a discharge pipe 25, the discharge pipe 25 is fixedly installed on the feeding hopper 20, the end of the discharge pipe 25 extends to the central position close to the dispersion blade 23, can accurately deliver the fine powder particle raw material to the vicinity of the dispersion blade 23, ensure that the raw material is fully dispersed before entering the screening cylinder, realize the efficient cooperation of raw material delivery and dispersion, and achieve the effect of further improving the dispersion effect and optimizing the screening process.

[0040] Finally, it should be noted that the fan 31, the screw feeder 24 and the stirring motor 21 and other components involved in the utility model are all general standard components or components known to those skilled in the art, the structure and principle of which are known to those skilled in the art through technical manuals or through conventional experimental methods, at the idle place of the device, all the electrical components described above, the power elements, electrical components and the adapted controller and power supply are connected by wires, the specific connection means should refer to the working principle in the utility model, the electrical components are connected in the order of operation, and the detailed connection means are all known in the art.

[0041] The multi-stage green silicon carbide fine powder particle multi-stage screening device of the utility model is used in the time, the green silicon carbide fine powder particle is delivered to the feeding hopper 20 by the screw feeder 24, the stirring motor 21 is started, the long shaft 22 and the dispersion blade 23 are driven to rotate, the fine powder particles in the feeding hopper 20 are dispersed, and the particles are prevented from adhering;

[0042] After the fine powder particles enter the vertical screening cylinder 1, the fan 31 of the air blowing screening assembly 3 is started, the air inlet cylinder 30 inhales air, and the air is blown out from the air outlet pipe 35 through the ventilation pipe 33 and the vertical pipe 34, and the fine powder particles are screened towards the discharge hopper 10, according to the actual particle size of the fine powder particles, the air speed is adjusted through the valve 351 on the air outlet pipe 35, and multi-stage screening is realized from top to bottom, the fine powder particles with particle size meeting the requirements are discharged to different material receiving parts through the corresponding discharge hopper 10 under the action of wind force;

[0043] During the whole screening process, the filter screen 321 at the air inlet end of the air inlet cylinder 30 filters the entering air to prevent impurities from mixing.

[0044] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above examples, the above examples and descriptions in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-stage green silicon carbide micro-powder particle multi-stage screening device, characterized in that: The utility model provides a vertical screening cylinder (1) is arranged vertically and top and bottom are all communicated with the outside, and the left and right sides of vertical screening cylinder (1) are all fixedly installed with a plurality of discharge hoppers (10) for discharging, and the discharge end of each discharge hopper (10) is communicated with different material receiving parts outside, and vertical screening cylinder (1) is provided with a blowing screening assembly (3) for blowing towards the discharge hopper (10) part to screen, and blowing screening assembly (3) includes an air inlet cylinder (30), and the air outlet end of air inlet cylinder (30) is fixedly installed with a ventilation pipe (33), and ventilation pipe (33) is fixedly installed with left and right two vertical pipes (34) that are symmetrical with each other, and two vertical pipes (34) are located at the left and right sides of vertical screening cylinder (1) respectively, and vertical pipe (34) is fixedly installed with a plurality of air outlet pipes (35), and the inside of air outlet pipe (35) is fixedly installed with a fan (31), and air outlet pipe (35) is fixedly installed on vertical screening cylinder (1), and air outlet pipe (35) is opposite to corresponding discharge hopper (10) side.

2. The multi-stage green silicon carbide micropowder particle multi-stage screening device according to claim 1, characterized in that: Valve (351) is fixedly installed on air outlet pipe (35), and the wind speed in a plurality of air outlet pipes (35) from top to bottom increases sequentially.

3. The multi-stage green silicon carbide micropowder particle multi-stage screening device according to claim 1, characterized in that: The air inlet end of air inlet cylinder (30) is detachably connected with a fixing ring (32), and the central position of fixing ring (32) is provided with a filter screen (321).

4. The multi-stage green silicon carbide micropowder particle multi-stage screening device according to claim 1, characterized in that: The bottom end of vertical screening cylinder (1) is fixedly installed with a supporting base (11), and the bottom of supporting base (11) is fixedly installed with a plurality of supporting legs (12).

5. The multi-stage green silicon carbide micropowder particle multi-stage screening device according to claim 4, characterized in that: The distance between the bottom end of vertical screening cylinder (1) and the ground is greater than 30cm, and the bottom end of supporting leg (12) is fixedly installed with a fixed base (121).

6. The multi-stage green silicon carbide micropowder particle multi-stage screening apparatus according to claim 1, characterized in that: The top of vertical screening cylinder (1) is provided with a feeding assembly (2), and the feeding assembly (2) includes a feeding hopper (20) fixedly installed on the top surface of vertical screening cylinder (1), and the feeding hopper (20) is provided with a screw feeder (24).

7. The multi-stage green silicon carbide micropowder particle multi-stage screening apparatus according to claim 6, characterized in that: The top surface central position of feeding hopper (20) is fixedly installed with a stirring motor (21), and the output shaft end of stirring motor (21) is fixedly installed with a long shaft (22), and the long shaft (22) is fixedly installed with a dispersion blade (23), and the dispersion blade (23) is located in the feeding hopper (20).

8. The multi-stage green silicon carbide micropowder particle multi-stage screening device according to claim 7, characterized in that: The discharge end of screw feeder (24) is fixedly installed with a discharge pipe (25), and the discharge pipe (25) is fixedly installed on the feeding hopper (20), and the end of discharge pipe (25) extends to the central position close to dispersion blade (23).

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