CN211100136U - Grader that practicality is strong - Google Patents

Abstract

The utility model provides a grader with strong practicability, which relates to the technical field of dust removal equipment and comprises an outer box and an air inlet pipe, wherein the lower end of the outer box is provided with a coarse grain outlet, the upper end of the outer box is provided with a particle outlet, an inner cylinder is arranged in the outer box, and a feeding pipe is arranged in the inner cylinder; a grading wheel is arranged at the top end of the outer box and connected with an external motor, and a conical cap is connected below the grading wheel; the classification wheel includes support body and blade, the support body includes the axis, from supreme preceding dish, first well dish, second well dish and the back dish of having set gradually down in the epaxial, the toper cap rigid coupling is in the lower extreme of preceding dish, the blade is installed on the support body, the blade still covers outward has the polyurethane layer, be provided with the ring form business turn over wind gap on the outer container. The utility model discloses an useful part is, and the classification wheel structure is durable, firm to it has the polyurethane layer to cover outside the blade, reaches wear-resisting purpose, increase of service life.

Description

Grader that practicality is strong

Technical Field

The utility model belongs to the technical field of the dust collecting equipment technique and specifically relates to a grader that practicality is strong.

Background

The classification of solid particles is widely applied in various fields, the solid materials in various fields have different sizes, at the moment, the solid particles are classified and collected according to the sizes after being divided into multiple stages according to the individual sizes, and a classifier is generally required for classification. The classifier works in such a way that materials move to a classification area from a feeding port at the lower end of the classifier at a high speed along with ascending air flow under the action of suction force of a fan, coarse and fine materials are separated under the action of strong centrifugal force generated by a classification turbine rotating at a high speed, fine particles meeting the particle size requirement enter a cyclone separator or a dust remover through blade gaps of the classification wheel to be collected, the speed of the fine particles in the coarse particles disappears after the fine particles in the coarse particles collide with a wall, the coarse particles descend to a secondary air port along the cylinder wall, the coarse and fine particles are separated through the strong elutriation action of secondary air, the fine particles ascend to the classification area for secondary classification, and the coarse particles descend to a discharge port to be. Although many classifiers have been developed, the structure of the grading wheel of such classifiers is often too simple and not strong enough, and is troublesome because it is easy to wear and require frequent maintenance.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes shortcoming among the prior art provides a grader that the practicality is strong, and the classification wheel structure is durable, firm to it has the polyurethane layer to cover at the blade coats outward, reaches wear-resisting purpose, increase of service life.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

a classifier with strong practicability comprises an outer box and an air inlet pipe, wherein a coarse grain outlet is formed in the lower end of the outer box, a particle outlet is formed in the upper end of the outer box, an inner cylinder is arranged in the outer box and communicated with the air inlet pipe, a feeding pipe is arranged in the inner cylinder, and the feeding pipe and the inner cylinder are coaxially arranged; a grading wheel is arranged at the top end of the outer box and connected with an external motor, a conical cap is connected below the grading wheel and is positioned right above the inner cylinder; the classification wheel includes support body and blade, the support body includes the axis, from supreme preceding dish, first well dish, second well dish and the back dish of having set gradually down in the epaxial, the toper cap rigid coupling is in the lower extreme of preceding dish, the blade is installed on the support body, the blade still covers outward has the polyurethane layer, be provided with the ring form business turn over wind gap on the outer container.

Preferably, the circumference of head disk, first head disk, second head disk and back disk corresponds on and has seted up the fluting, grooved width with the thickness of blade matches, the blade joint is installed in the fluting, still include blade fixed pressing plate, blade fixed pressing plate includes horizontal plate and backup plate, be provided with the draw-in groove on the horizontal plate, the width of draw-in groove with the thickness of blade matches, the both sides of draw-in groove are provided with the screw hole.

Preferably, the upper end and the lower end of the blade are provided with bending plates, and screw holes are reserved in the bending plates.

Preferably, reinforcing rods are arranged on the first middle disc, the second middle disc and the rear disc at equal intervals, the number of the reinforcing rods is 3, and an included angle formed between every two adjacent reinforcing rods is 60 degrees.

Preferably, the outer circle diameters of the front disc, the first middle disc, the second middle disc and the rear disc become larger step by step.

Preferably, the end of the air inlet pipe is provided with a flange.

Preferably, a support rod for fixing the inner cylinder is arranged in the outer box.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a classification wheel includes support body and blade, the support body includes the axis, the epaxial front bezel that has set gradually from the supreme down, first well dish, second well dish and back plate of axis, correspond on the circumference of front bezel, first well dish, second well dish and back plate and seted up the fluting, the width of fluting matches with the thickness of blade, the blade joint is installed in the fluting, and still be provided with blade fixed pressing plate, blade fixed pressing plate further locks the blade on the support body, the upper and lower both ends of blade are provided with the board of bending, it has the screw hole to reserve on the board of bending, through twisting the screw in the screw hole, also reach the purpose of fixing the upper and lower both ends of blade, the structure is very firm, it is difficult to take place loosely; in addition, the polyurethane layer covers the blade, so that the purpose of wear resistance is achieved, and the service life is prolonged.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, together with the embodiments of the invention, and do not constitute a limitation on the invention, in which:

fig. 1 is an overall view of a classifier of the present invention with high practicability;

FIG. 2 is a side view of the classifying wheel;

FIG. 3 is a top view of the front plate;

FIG. 4 is a top view of the first centerboard;

FIG. 5 is a top view of the second centerboard;

FIG. 6 is a top view of the back plate;

FIG. 7 is a top view of the blade holding clamp;

fig. 8 is a schematic view of the installation of the blade and the blade holding pressure plate viewed in the lateral direction.

In the figure: 1-outer box, 2-air inlet pipe, 3-coarse grain outlet, 4-fine grain outlet, 5-inner cylinder, 6-inlet pipe, 7-conical cap, 8-blade, 9-middle shaft, 10-front disc, 11-first middle disc, 12-second middle disc, 13-rear disc, 14-circular air inlet and outlet, 15-slot, 16-blade fixing pressure plate, 17-horizontal plate, 18-backup plate, 19-slot, 20-screw hole, 21-bending plate, 22-reinforcing rod, 23-flange plate and 24-support rod.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

As shown in figures 1 to 8, a classifier with strong practicability comprises an outer box 1 and an air inlet pipe 2, wherein a coarse grain outlet 3 is arranged at the lower end of the outer box 1, a fine grain outlet 4 is arranged at the upper end of the outer box 1, an inner cylinder 5 is arranged in the outer box 1, a support rod 24 for fixing the inner cylinder 5 is arranged in the outer box 1, one end of the support rod 24 is welded with the inner cylinder 5, the other end of the support rod 24 is welded with the inner wall of the outer box 1, so that the inner cylinder 5 is fixed in the middle of the outer box 1, the inner cylinder 5 is communicated with the air inlet pipe 2, wind energy, a flange 23 is arranged at the end part of the air inlet pipe 2, the flange 23 is beneficial to being connected and fixed with an external air supply pipeline, a feed pipe 6 is arranged in the inner cylinder 5, the feed pipe 6 is coaxially arranged with the inner cylinder 5, materials are blown into the grader through the feed pipe 6 for grading, the outer casing 1 is provided with an annular air inlet/outlet port 14 for facilitating the flow of outside air into the outer casing 1.

A grading wheel is arranged at the top end of the outer box 1 and connected with an external motor, the external motor is arranged at the top end of the grading machine and coaxially connected with the grading wheel to drive the grading wheel to rotate, a conical cap 7 is connected below the grading wheel, and the conical cap 7 is positioned right above the inner cylinder 5; the grading wheel comprises a frame body and blades 8, the frame body comprises a middle shaft 9, the middle shaft 9 is coaxially connected with an external motor, a front disc 10, a first middle disc 11, a second middle disc 12 and a rear disc 13 are sequentially arranged on the middle shaft 9 from bottom to top, a conical cap 7 is welded and fixed at the lower end of the front disc 10, the blades 8 are arranged on the circumference of the frame body, a polyurethane layer covers the blades 8, the polyurethane is a high-molecular artificial synthetic material, the performance of the polyurethane is similar to that of rubber, and the grading wheel has the advantages of good wear resistance, good elasticity, high strength and the like, as particle powder enters the grading wheel through a gap between the blades 8 and is finally discharged from a particle outlet 4, the particle powder can rub the blades 8, and the wear resistance of the blades 8 can be enhanced by covering the polyurethane layer on the blades 8, so that the blades are not easy to damage, the service life is prolonged, the polyurethane layer can cover the outer surfaces, the method and process are well known to those skilled in the art and will not be described herein.

The circumference of the front disc 10, the first middle disc 11, the second middle disc 12 and the rear disc 13 is correspondingly provided with a slot 15, the width of the slot 15 is matched with the thickness of the blade 8, the blade 8 is installed in the slot 15 in a clamping manner, reinforcing rods 22 are equidistantly arranged on the first middle disc 11, the second middle disc 12 and the rear disc 13, the number of the reinforcing rods 22 is 3, an included angle formed between adjacent reinforcing rods 22 is 60 degrees, fine particle powder is circulated through the included angle formed between adjacent reinforcing rods 22, the diameters of the outer circles of the front disc 10, the first middle disc 11, the second middle disc 12 and the rear disc 13 are gradually increased, as shown in fig. 2, so that the blade 8 can be obliquely installed on the front disc 10, the first middle disc 11, the second middle disc 12 and the rear disc 13, and a larger grading vortex force can be generated in the rotating process; the blade fixing and pressing plate 16 is used for fixedly mounting the blades 8 on the first middle disc 11 and the second middle disc 12, the blade fixing and pressing plate 16 comprises a horizontal plate 17 and a backup plate 18, the horizontal plate 17 and the backup plate 18 are integrally formed, a clamping groove 19 is formed in the horizontal plate 17, the width of the clamping groove 19 is matched with the thickness of the blades 8, and screw holes 20 are formed in two sides of the clamping groove 19, the blade fixing and pressing plate 16 is used in a mode that when the blades 8 are mounted on the front disc 10, the first middle disc 11, the second middle disc 12 and the rear disc 13 as shown in fig. 2, the clamping groove 19 in the horizontal plate 17 is clamped into the blades 8, and then screws are screwed into the screw holes 20, so that the blade fixing and pressing plate 16 can be fixed on the first middle disc 11 or the second middle disc 12, the purpose of limiting the blades 8 is achieved, and the blades 8 are not prone to break away; bending plates 21 are arranged at the upper end and the lower end of the blade 8, screw holes (not marked) are reserved on the bending plates 21, and as can be seen from fig. 8, the upper end and the lower end of the blade 8 can be respectively fixed on the front disc 10 and the rear disc 13 by screwing screws into the screw holes, so that the stability is enhanced.

The working principle of the grader is as follows: external materials are blown into the classifier through the feeding pipe 6, the classifying wheel is driven to rotate after the external motor is started, so that classifying vortex force is generated, and the particle powder meeting the fineness requirement rises under the action of the vortex force, enters the classifying wheel through gaps between the blades 8 and the blades 8, and is finally discharged and recovered through the particle outlet 4; coarse particles and agglomerated fine powder are scattered outwards to the inner wall of the outer box 1 after impacting the conical cap 7, the materials are intensively washed by the spiral centrifugal ascending air flow, the coarse particles and the fine particles are separated again, the fine particles enter the grading area again along with the ascending air flow for sorting, and finally the fine particles are discharged and recovered through the particle outlet 4; the coarse powder falls to the inner cylinder 5 and is strongly cleaned by primary air inlet flow, so that the pure coarse powder is discharged out of the machine through the coarse particle outlet 3, and finally the purpose of dust classification is achieved. The air inlet pipe 2 and the circular air inlet and outlet 14 both achieve the effect of supplementing air to the interior of the outer box 1,

finally, it should be noted that: although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications, equivalents, improvements and the like can be made in the technical solutions of the foregoing embodiments or in some technical features of the foregoing embodiments, but all modifications, equivalents, improvements and the like within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims (7)

1. A grader with strong practicability is characterized by comprising an outer box and an air inlet pipe, wherein a coarse grain outlet is formed in the lower end of the outer box, a particle outlet is formed in the upper end of the outer box, an inner cylinder is arranged in the outer box and communicated with the air inlet pipe, a feeding pipe is arranged in the inner cylinder, and the feeding pipe and the inner cylinder are coaxially arranged; a grading wheel is arranged at the top end of the outer box and connected with an external motor, a conical cap is connected below the grading wheel and is positioned right above the inner cylinder; the classification wheel includes support body and blade, the support body includes the axis, from supreme preceding dish, first well dish, second well dish and the back dish of having set gradually down in the epaxial, the toper cap rigid coupling is in the lower extreme of preceding dish, the blade is installed on the support body, the blade still covers outward has the polyurethane layer, be provided with the ring form business turn over wind gap on the outer container.

2. The grader with strong practicability according to claim 1, wherein a groove is correspondingly formed in the circumference of the front disc, the first middle disc, the second middle disc and the rear disc, the width of the groove is matched with the thickness of the blade, the blade is clamped and installed in the groove, the grader further comprises a blade fixing pressing plate, the blade fixing pressing plate comprises a horizontal plate and a backup plate, a clamping groove is formed in the horizontal plate, the width of the clamping groove is matched with the thickness of the blade, and screw holes are formed in two sides of the clamping groove.

3. The classifier with strong practicability as claimed in claim 1, wherein bending plates are arranged at the upper end and the lower end of the blade, and screw holes are reserved on the bending plates.

4. The classifier with strong practicability as claimed in claim 1, wherein reinforcing rods are arranged on the first middle disc, the second middle disc and the rear disc at equal intervals, the number of the reinforcing rods is 3, and an included angle formed between every two adjacent reinforcing rods is 60 degrees.

5. A grader with high practicability according to claim 4, wherein the diameters of the outer circles of the front disc, the first middle disc, the second middle disc and the rear disc are gradually increased.

6. A grader with high practicality according to claim 1, wherein a flange is provided at the end of the blast pipe.

7. The classifier with high practicability as claimed in claim 1, wherein a supporting rod for fixing the inner cylinder is arranged in the outer box.

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