Novel ash bucket cleaning device

Abstract

The utility model relates to a novel ash bucket cleaning device, which belongs to the technical field of powder grading equipment and comprises an ash bucket inner cone, the ash bucket inner cone is connected below an upper shell of a sorting machine, a scattering fan is rotatably arranged in the ash bucket inner cone, and the scattering fan is used for scattering falling materials; a plurality of secondary sorting air inlets are uniformly formed in the outer wall of the ash bucket inner cone in the tangential direction of the ash bucket inner cone, a plurality of air guide blades are further arranged in the ash bucket inner cone, and the air guide blades are uniformly distributed in the circumferential direction; an impeller is rotationally arranged in the upper shell, the impeller and the inner wall of the upper shell jointly define a grading area, and materials are preliminarily sorted in the grading area; according to the novel ash bucket cleaning device, materials subjected to preliminary sorting can be scattered, the materials which are not sorted are brought into a grading area again through evenly-distributed secondary sorting airflow to be sorted again, the sorting efficiency is improved, and the particle size range of the sorted materials is narrowed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a novel ash bucket cleaning device belongs to powder grading equipment technical field. BACKGROUND

[0002] The powder grading is realized through the separation of the powder classifier, and the change of the flow separation mode of the material in the powder classifier can produce different grading effects. Although the existing powder classifier can separate, the material falling from the top is uneven, and the separation airflow in the cone cannot be uniformly distributed on the circumference, thereby leading to low working efficiency and failing to realize high-efficiency powder separation in a true sense. SUMMARY

[0003] According to the above deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a novel ash bucket cleaning device, which can scatter the material and send the falling material back to the classification area for re-separation through the uniformly distributed secondary separation airflow, thereby improving the material separation efficiency.

[0004] The novel ash bucket cleaning device comprises an inner cone of an ash bucket, the inner cone of the ash bucket is connected below an upper shell of a separator, a scattering fan is rotatably arranged in the inner cone of the ash bucket, and the scattering fan is used for scattering the falling material; a plurality of secondary separation air inlets are uniformly arranged on the outer wall of the inner cone of the ash bucket along the tangent direction thereof, a plurality of air guide blades are further arranged in the inner cone of the ash bucket, and the air guide blades are uniformly distributed along the circumferential direction; and an impeller is rotatably arranged in the upper shell, the impeller and the inner wall of the upper shell jointly form a classification area, and the material is preliminarily separated in the classification area.

[0005] The technical scheme of the utility model provides a novel ash bucket cleaning device, the material preliminarily separated in the classification area of the upper shell is scattered by the scattering fan after falling, the secondary separation airflow is uniformly distributed after passing through the air guide blades, and the material not separated is re-separated in the classification area under the joint action of the scattering fan and the secondary separation airflow, so that the separation efficiency is improved, and the particle size range of the material after separation is reduced.

[0006] Preferably, the top of the scattering fan is connected to the bottom of the impeller, and the impeller drives the scattering fan to rotate.

[0007] Preferably, an air adjusting valve plate is arranged on the secondary separation air inlet, and the air adjusting valve plate is used for adjusting the air volume of the secondary separation airflow.

[0008] Preferably, a plurality of material blocking rings are uniformly arranged on the inner wall of the inner cone of the ash bucket at a certain interval, so that a small amount of material can be temporarily stored in the area between the material blocking rings and the inner wall of the inner cone of the ash bucket, thereby reducing the wear of the inner wall of the inner cone of the ash bucket.

[0009] Preferably, a coarse material outlet is arranged at the bottom of the inner cone of the ash bucket, and the coarse material outlet is used for discharging the separated coarse material.

[0010] Preferably, two sides of the impeller on the upper shell are provided with primary separation air inlets for passing primary separation air flow; the upper shell is further provided with a feeding port, a fine material outlet and a feeding port.

[0011] The utility model has the beneficial effects compared with prior art:

[0012] The novel ash bucket cleaning device can scatter the preliminarily separated material, re-enters the material not separated by the uniformly distributed secondary separation air flow into the classification area for re-separation, improves the separation efficiency and reduces the particle size range of the material after separation. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structural schematic diagram of the utility model;

[0014] Figure 2 It is Figure 1 A-A sectional view of it;

[0015] Figure 3 It is Figure 1 B-B sectional view of it.

[0016] In the drawing: 1, ash bucket inner cone; 2, coarse material outlet; 3, scattering fan; 4, classification area; 5, impeller; 6, primary separation air inlet; 7, feeding port; 8, upper shell; 9, material blocking ring; 10, air guide blade; 11, secondary separation air inlet; 12, air regulating valve plate. DETAILED DESCRIPTION

[0017] As Figures 1-3 shown, the embodiment is realized by the following technical scheme: including ash bucket inner cone 1, the ash bucket inner cone 1 is connected below the upper shell 8 of the separator, the ash bucket inner cone 1 is rotationally arranged scattering fan 3, and the scattering fan 3 is used to scatter the falling material; three secondary separation air inlets 11 are evenly arranged on the outer wall of the ash bucket inner cone 1 along the tangent direction thereof, and a plurality of air guide blades 10 are further arranged in the ash bucket inner cone 1, and each air guide blade 10 is evenly distributed along the circumferential direction; the upper shell 8 is rotationally arranged impeller 5, the impeller 5 and the inner wall of the upper shell 8 jointly enclose to form classification area 4, and the material is preliminarily separated in the classification area 4.

[0018] In the embodiment, the top of the scattering fan 3 is connected to the bottom of the impeller 5, and is driven to rotate by the impeller 5; the air regulating valve plate 12 is installed on the secondary sorting air inlet 11, and is used for adjusting the air volume of the secondary sorting air flow; a plurality of material blocking rings 9 are evenly arranged on the inner wall of the inner cone 1 of the ash bucket at a certain interval, so that a small amount of material can be temporarily stored in the area between the material blocking ring 9 and the inner wall of the inner cone 1 of the ash bucket, so as to slow down the wear of the inner wall of the inner cone 1 of the ash bucket; the bottom of the inner cone 1 of the ash bucket is provided with a coarse material outlet 2, which is used for discharging the sorted coarse material; the upper shell 8 is provided with the primary sorting air inlet 6 on both sides of the impeller 5, which is used for introducing the primary sorting air flow; the upper shell 8 is also provided with a material inlet 7, a fine material outlet and a feeding port.

[0019] The working process of the utility model is as follows:

[0020] 1, the material to be sorted after grinding enters the upper shell 8 of the powder separator through the feeding port, and the primary sorting air flow enters the upper shell 8 through the primary sorting air inlet 6; the driving device drives the impeller 5 and the scattering fan 3 to rotate, and the secondary sorting air flow enters the inner cone 1 of the ash bucket uniformly through the secondary sorting air inlet 11;

[0021] 2, under the action of the centrifugal force generated by the impeller 5, the self-gravity and the pulling force of the primary sorting air flow, part of the fine powder particles pass through the impeller 5 and are discharged through the fine material outlet; and the coarse powder particles fall into the inner cone 1 of the ash bucket in the classification area 4;

[0022] 3, the larger particles in the coarse powder particles fall along the inner wall of the inner cone 1 of the ash bucket and are discharged through the coarse material outlet 2; the finer particles in the coarse powder particles are scattered by the scattering fan 3 and are brought into the classification area 4 again for re-sorting under the action of the secondary sorting air flow and the thrust of the scattering fan 3.

[0023] Due to the extension of the residence time of the material in the inner cone 1 of the ash bucket, the material is fully dispersed, and each particle of the material has multiple opportunities for repeated sorting from top to bottom, so that the material classification efficiency is high, and the particle size range of the obtained material is narrow.

[0024] Of course, the above content is only a preferred embodiment of the utility model, and cannot be considered as limiting the scope of the embodiment of the utility model. The utility model is also not limited to the above examples, and equal changes and improvements made by ordinary skilled persons in the technical field within the essential scope of the utility model should be attributed to the patent coverage range of the utility model.

Claims

1. A novel ash hopper cleaning device, characterized by, The application relates to a secondary sorting device for a sorting machine, which comprises a hopper inner cone (1) connected below an upper shell (8) of the sorting machine, a scattering fan (3) being rotatably arranged in the hopper inner cone (1); a plurality of secondary sorting air inlets (11) are uniformly arranged on the outer wall of the hopper inner cone (1) along the tangent direction of the hopper inner cone (1); a plurality of air guide blades (10) are further arranged in the hopper inner cone (1), and the air guide blades (10) are uniformly distributed along the circumferential direction; an impeller (5) is rotatably arranged in the upper shell (8), and the impeller (5) and the inner wall of the upper shell (8) jointly form a grading area (4), and materials are preliminarily sorted in the grading area (4).

2. The new type of ash chute cleaning device according to claim 1, characterized in that, The top of the scattering fan (3) is connected with the bottom of the impeller (5).

3. The new type of ash chute cleaning device according to claim 1, characterized in that, An air adjusting valve plate (12) for adjusting air volume is arranged on the secondary sorting air inlet (11).

4. The new type of ash chute cleaning device according to claim 1, characterized in that, A plurality of material blocking rings (9) are uniformly arranged on the inner wall of the hopper inner cone (1) at certain intervals.

5. The novel ash chute cleaning device according to claim 4, characterized in that A coarse material outlet (2) is arranged at the bottom of the hopper inner cone (1).

6. The new type of ash chute cleaning device according to claim 1, characterized in that, Primary sorting air inlets (6) are arranged on both sides of the impeller (5) on the upper shell (8); a feeding port (7), a fine material outlet and a feeding port are further arranged on the upper shell (8).

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