CN204564570U - Dynamic rotary separator guider - Google Patents

Abstract

The utility model relates to rotating separation apparatus, is specially a kind of dynamic rotary separator guider.Be characterized in: described powder cone top of returning is provided with static blade, described time powder cone, the outside of static blade are provided with shell separator and surround them, described returns powder cone outer surface close to bottom connecting guide plate IV, described guide plate IV to be arranged on back on powder cone outer surface by conical helix and with return powder and bore outer surface and weld, return on the top of guide plate IV on powder cone outer surface, continuity conical helix arranges described guide plate III, and guide plate III welds with the wide end of guide plate IV, bore outer surface with time powder welds.The utility model has the advantages that: improve efficiency separator 5 ~ 10%, pulverized coal fineness coefficient >=1.2, within coal pipe outlet powder amount deviation 5%.Have and improve pulverized coal fineness thus reach raising boiler combustion efficiency, reduce unburned carbon in flue dust, meet the environmental requirement of China, and be significantly less than environmental protection index.

Description

Dynamic rotary separator guider

Technical field

The utility model relates to rotating separation apparatus, is specially a kind of dynamic rotary separator guider.

Background technology

Through State Patent Office's query and search, find that there is Authorization Notice No. a: CN203816924U, utility model patent: a kind of Split-type rotor device of bowl pulverizer dynamic rotary separator, can Extending Rotor body device service life, and then saving use cost, this utility model patent does not have dynamic rotary separator guider.Static separation device cannot regulate fineness of pulverized coal in real time, can not be energy-conservation, is unfavorable for existing environmental requirement.

Summary of the invention

It is simple, with low cost, simple to operate, easy to maintenance that the purpose of this utility model is to provide a kind of structure, effectively larger coal dust can be shifted to an earlier date the dynamic rotary separator guider of pre-separation.The purpose of this utility model is achieved in that a kind of dynamic rotary separator guider, comprises back powder and bores 1 guide plate I, guide plate II, guide plate III, guide plate IV, static blade, shell separator, is characterized in that: described powder cone top of returning is provided with static blade, and described returns powder cone, the outside of static blade is provided with shell separator and surrounds them, described returns powder cone outer surface close to bottom connecting guide plate IV, described guide plate IV to be arranged on back on powder cone outer surface by conical helix and with return powder and bore outer surface and weld, return on the top of guide plate IV on powder cone outer surface, continuity conical helix arranges described guide plate III, and guide plate III welds with the wide end of guide plate IV, bore outer surface with time powder to weld, be disposed with guide plate II, guide plate I, completes one-period, continues upwards to arrange along conical helix, then presses guide plate IV, guide plate III, guide plate II, the order of guide plate I is arranged, and the rest may be inferred, until arrive back powder cone top part, guide plate I and guide plate II, guide plate II are with guide plate III, guide plate III with guide plate IV, between guide plate IV with guide plate I, the normal distance in space is equal, and the thickness of guide plate I, guide plate II, guide plate III, guide plate IV is equal.Described guide plate I, guide plate II, guide plate III, guide plate IV are evenly arranged by conical helix.Described guide plate I width L1 is 0 ~ 20mm, and guide plate II width L2 is 20mm ~ 40mm, and guide plate III width L3 is 40mm ~ 60mm, and guide plate IV width L4 is 60mm ~ 80mm.Described guide plate I, II, III, IV and return powder and bore 1 and adopt and be welded to connect.Described guide plate I and guide plate II, guide plate II and guide plate III, guide plate III and guide plate IV, between guide plate IV and guide plate I, the normal distance in space is 10mm ~ 500mm.The thickness of described guide plate I, guide plate II, guide plate III, guide plate IV is 3mm ~ 30mm.The utility model has the advantages that: structure is simple, with low cost, simple to operate, easy to maintenance; The utility model can realize real-time adjustment, and extensive use in generating plant pulverized coal boiler.In the approach optimizing fineness of pulverized coal uniformity index and raising efficiency separator, be all realized by the improvement of rotor and stator, do not use dynamic separator guider.This patent has wind powder air-flow pre-separation effect, makes wind powder air-flow more orderly, enters separator dynamic and static blade breeze airflow fineness uniformity and improve 3 ~ 5% compared with before; The orderly guide plate pressing conical helix layout, guides the direction of air current flow, is beneficial to and flows to space between stator blade.The wind powder built up is through the separation layer by layer of guide plate, wind powder is uniformly distributed at the rising space, and fine grained is carried by air-flow and enters space between stator blade, and coarse granule falls back and again grinds, reduce fine powder and mix with meal reground probability that falls back, improve grinding efficiency and coal pulverizer ability.Meanwhile, by the change width of guide plate, larger coal dust is shifted to an earlier date pre-separation, thus improve efficiency separator 5 ~ 10%, pulverized coal fineness coefficient >=1.2, within coal pipe outlet powder amount deviation 5%.Have and improve pulverized coal fineness thus reach raising boiler combustion efficiency, reduce unburned carbon in flue dust, meet the environmental requirement of China, and be significantly less than environmental protection index.

Accompanying drawing explanation

Fig. 1 is the utility model structural principle schematic front view; Fig. 2 is that the powder that returns of the utility model partial enlarged drawing A bores the structural principle schematic diagram be connected with guide plate I; Fig. 3 is that the powder that returns of the utility model partial enlarged drawing B bores the structural principle schematic diagram be connected with guide plate II; Fig. 4 is that the powder that returns of the utility model partial enlarged drawing C bores the structural principle schematic diagram be connected with guide plate III; Fig. 5 is that the utility model of the present utility model time powder bores the structural principle schematic diagram be connected with guide plate IV; Fig. 6 be the utility model E-E to guide plate II and guide plate III syndeton principle cross-sectional schematic.

Detailed description of the invention

A kind of dynamic rotary separator guider, comprises back powder cone 1, guide plate I 2, guide plate II 3, guide plate III 4, guide plate IV 5, static blade 6, shell separator 7, is characterized in that: described time powder is bored 1 top and is provided with static blade 6, and described returns powder cone 1, the outside of static blade 6 is provided with shell separator 7 and surrounds them, the described powder that returns bores 1 outer surface close to bottom connecting guide plate IV 5, described guide plate IV 5 by conical helix be arranged on back powder to bore on 1 outer surface and with return powder and bore 1 outer surface and weld, returning powder on the top of guide plate IV 5 bores on 1 outer surface, continuity conical helix arranges described guide plate III 4, and guide plate III 4 welds with the wide end of guide plate IV 5, bore 1 outer surface with time powder to weld, be disposed with guide plate II 3, guide plate I 2, completes one-period, continues upwards to arrange along conical helix, then presses guide plate IV 5, guide plate III 4, guide plate II 3, the order of guide plate I 2 is arranged, and the rest may be inferred, until bore 1 top to returning powder, guide plate I 2 and guide plate II 3, guide plate II 3 are with guide plate III 4, guide plate III 4 with guide plate IV 5, between guide plate IV 5 with guide plate I 2, the normal distance in space is equal, and the thickness of guide plate I 2, guide plate II 3, guide plate III 4, guide plate IV 5 is equal.Described guide plate I 2, guide plate II 3, guide plate III 4, guide plate IV 5 are evenly arranged by conical helix.Described guide plate I 2 width L1 is 0 ~ 20mm, and guide plate II 3 width L2 is 20mm ~ 40mm, and guide plate III 4 width L3 is 40mm ~ 60mm, and guide plate IV 5 width L4 is 60mm ~ 80mm.Described guide plate I 2, II 3, III 4, IV 5 with return powder and bore 1 and adopt and be welded to connect.Described guide plate I 2 and guide plate II 3, guide plate II 3 and guide plate III 4, guide plate III 4 and guide plate IV 5, between guide plate IV 5 and guide plate I 2, the normal distance in space is 10mm ~ 500mm.The thickness of described guide plate I 2, guide plate II 3, guide plate III 4, guide plate IV 5 is 3mm ~ 30mm.

Below in conjunction with accompanying drawing, this patent detailed description of the invention is described.Dynamic rotary separator guider, comprise back powder cone 1, return powder to bore 1 top and be provided with static blade 6, outside is provided with shell separator 7, return powder and bore 1 outer surface close to bottom welding guide plate IV 5, guide plate IV 5 is arranged in back powder by conical helix and bores on 1 outer surface, bore 1 outer surface with time powder to weld, returning powder on the top of guide plate IV 5 bores on 1 outer surface, continue to press conical helix and arrange guide plate III 4, guide plate III 4 welds with the wide end of guide plate IV 5, bore 1 outer surface with time powder to weld, arrange guide plate II 3 successively, guide plate I 2, complete one-period, continue upwards along conical helix, press guide plate IV 5 again, guide plate III 4, guide plate II 3, being disposed in order of guide plate I 2, the rest may be inferred, until be arranged into back powder to bore 1 top.Guide plate I 2 and guide plate II 3, guide plate II 3 are with guide plate III 4, guide plate III 4 with guide plate IV 5, between guide plate IV 5 with guide plate I 2, the normal distance in space is equal, and the thickness of guide plate I 2, guide plate II 3, guide plate III 4, guide plate IV 5 is equal.Guide plate I 2, II 3, III 4, IV 5 material is high temperature wear resistant alloy.

Below in conjunction with accompanying drawing in detail operation principle of the present utility model is described in detail, the course of work: wind powder mixture enters the space between guide plate IV 5 bottom and guide plate III 4 by below, breeze airflow is along guide plate IV 5 upper surface, cone-type spiral moves upward, breeze airflow is close to arriving guide plate III 4 place, guide plate IV 5 width narrows gradually, thickness coal dust intermixture on it, due to guide plate IV 5 narrowed width, some cannot accumulate, separation is dropped, drop in process, the coal dust that particle is thinner is taken away by air-flow, the coal dust that particle is larger falls back, wind powder mixture reaches and the equal place of guide plate III 4 width, enter guide plate III 4 upper surface space, herein, due to width continue narrow, existing part coal dust is separated, wind powder continues to move along guide plate III 4 upper surface, breeze airflow is close to arriving guide plate II 3 place, guide plate III 4 width narrows gradually, on it, thickness coal dust intermixture is separated and drops, breeze airflow arrives guide plate II 3 successively, guide plate I 2, guide plate I 2 continues to narrow, the thickness coal dust intermixture of its upper surface has stockpiled seldom, in the drive of air-flow, the thickness coal dust remaining in guide plate I 2 upper surface is continued to be separated.Meanwhile, weld with guide plate I 2, continue the guide plate IV 5 upper surface space upwards arranged along conical helix, have wind powder mixture to enter equally, carry out coal dust separation equally.Process like this, repeats, and just has a large amount of coal dusts separated, and the bulky grain that a part does not meet fineness requirement is separated breeze airflow, falls back to mill and again grinds.Dynamic separator guider carries out pre-separation to breeze airflow before the dynamic and static blade of separator, adds fineness of pulverized coal uniformity.The continuous conical helix of guide plate I 2, II 3, III 4, IV 5 is arranged, makes the tapered helix in the space between them, and enter the breeze airflow in this space of people also by conical helix motion, air compartment air-flow is more even, effectively.Dynamic rotary separator guider, all parts all adopt wear resistant alloy material.Improve the wear resistance at elevated temperature of guider working face, extend service life.

Claims (6)

1. a dynamic rotary separator guider, comprise back powder cone, guide plate I, guide plate II, guide plate III, guide plate IV, static blade, shell separator, it is characterized in that: described powder cone top of returning is provided with static blade, described returns powder cone, the outside of static blade is provided with shell separator and surrounds them, described returns powder cone outer surface close to bottom connecting guide plate IV, described guide plate IV to be arranged on back on powder cone outer surface by conical helix and with return powder and bore outer surface and weld, return on the top of guide plate IV on powder cone outer surface, continuity conical helix arranges described guide plate III, guide plate III welds with the wide end of guide plate IV, bore outer surface with time powder to weld, be disposed with guide plate II, guide plate I, complete one-period, continue upwards to arrange along conical helix, press guide plate IV again, guide plate III, guide plate II, the order of guide plate I is arranged, the rest may be inferred, until arrive back powder cone top part, guide plate I and guide plate II, guide plate II are with guide plate III, guide plate III with guide plate IV, between guide plate IV with guide plate I, the normal distance in space is equal, and the thickness of guide plate I, guide plate II, guide plate III, guide plate IV is equal.

2. dynamic rotary separator guider according to claim 1, is characterized in that: described guide plate I, guide plate II, guide plate III, guide plate IV are evenly arranged by conical helix.

3. dynamic rotary separator guider according to claim 1, it is characterized in that: described guide plate I width L1 is 0 ~ 20mm, guide plate II width L2 is 20mm ~ 40mm, and guide plate III width L3 is 40mm ~ 60mm, and guide plate IV width L4 is 60mm ~ 80mm.

4. dynamic rotary separator guider according to claim 1, is characterized in that: described guide plate I, II, III, IV and return powder and bore (1) and adopt and be welded to connect.

5. dynamic rotary separator guider according to claim 1, is characterized in that: described guide plate I and guide plate II, guide plate II and guide plate III, guide plate III and guide plate IV, between guide plate IV and guide plate I, the normal distance in space is 10mm ~ 500mm.

6. dynamic rotary separator guider according to claim 1, is characterized in that: the thickness of described guide plate I, guide plate II, guide plate III, guide plate IV is 3mm ~ 30mm.