CN203099878U - Negative pressure powder conveying and combusting system - Google Patents
Negative pressure powder conveying and combusting system Download PDFInfo
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- CN203099878U CN203099878U CN 201320055670 CN201320055670U CN203099878U CN 203099878 U CN203099878 U CN 203099878U CN 201320055670 CN201320055670 CN 201320055670 CN 201320055670 U CN201320055670 U CN 201320055670U CN 203099878 U CN203099878 U CN 203099878U
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Abstract
The utility model discloses a negative pressure powder conveying and combusting system which comprises a powder cabin. The lower portion of the powder cabin is communicated with a conveying machine, the conveying machine is provided with a discharging port, a primary conveying pipeline is communicated with the discharging port, a primary distributor is arranged at the rear end of the primary conveying pipeline, the rear end of the primary distributor is communicated with at least two secondary conveying pipelines, secondary distributors are arranged at the rear ends of the secondary conveying pipelines, the rear ends of the secondary distributors are communicated with at least two powder guns, the discharging ends of the powder guns extend into a kiln, and a high-pressure centrifugal fan is arranged in the middle of the primary conveying pipeline. The negative pressure powder conveying and combusting system has the advantages that powder is not prone to flowing back to the powder cabin, and the system is simple in structure.
Description
Technical field
The utility model relates to the burner technical field, especially relates to a kind of negative pressure transportation powder combustion system.
Background technology
Kiln burning is fuel used mostly to be liquid fuel such as heavy oil.Though these liquid fuels mobile better, easy to use, be easy to burning, cost is also high.On the other hand, powders such as flyash, petroleum coke powder (being dusty fuel) are a large amount of to be existed, and they mostly are waste material, but contains big heat.For this reason, the utility model people has produced the combustion system that can utilize powder to act as a fuel through with great concentration research.But, because powder when feed bin transports out, adopts roots blower to blow powder more and enter the powder rifle that discharge end is arranged in kiln inside step by step, thereby powder very easily is back in the feed bin.Though taked the anti-return measure, effect is also desirable not to the utmost.Simultaneously, this utilizes the powder burning of the combustion system of powder to stablize inadequately.
The utility model content
The purpose of this utility model provides a kind of negative pressure transportation powder combustion system, and it has powder and is difficult for being back in the filler bin, and powder output has more linearity, and output band is wideer, and structure characteristic of simple comparatively.Further, it has the comparatively stable characteristics of powder burning.
The technical scheme that the utility model adopted is: negative pressure transportation powder combustion system, comprise filler bin, the bottom of this filler bin is communicated with conveyer, this conveyer is provided with discharging opening, this discharging opening is communicated with the one-level conveyance conduit, this one-level conveyance conduit rear end is provided with the one-level distributor, this one-level distributor rear end is communicated with at least 2 two-stage conveying pipelines, this two-stage conveying rear end of pipeline is provided with secondary splitter, this secondary splitter rear end is communicated with at least 2 powder rifles, the discharge end of this powder rifle stretches in the kiln, and the middle part of described one-level conveyance conduit is provided with centrifugal high pressure fan.
Be provided with the shunting actuator between described one-level distributor and the two-stage conveying pipeline, this shunting actuator is provided with chamber, this chamber is provided with feed pipe and first discharge nozzle and second discharge nozzle, and be provided with prerotation vane in this chamber, simultaneously, this feed pipe is communicated with that this one-level distributor, this first discharge nozzle are communicated with this two-stage conveying pipeline, this second discharge nozzle is communicated with return duct, this conveyer is provided with refluxing opening, this return duct is communicated to this refluxing opening, and this prerotation vane is connected with power set, and these power set are connected with automaton.
The power set that described prerotation vane connects are stepless speed-change motor, and the automaton that these power set connect is the PID controller.
Described two-stage conveying pipeline is communicated with the clear gas blow pipe of high pressure, and the clear gas blow pipe of this high pressure is connected with air compressor machine.
The utility model is compared the advantage that is had with prior art: 1, powder is difficult for being back in the filler bin, and structure is comparatively simple.The mode that negative pressure transportation powder combustion system of the present utility model is outwards carried from filler bin at powder changes.That is, avoid the mode that adopts roots blower that powder is blowed step by step, but by centrifugal high pressure fan with powder sucking-off from filler bin.Like this, form negative pressure at the conveyer place of filler bin bottom, thereby powder can not be back in the filler bin.In case and powder enters after the one-level distributor, powder the pipeline of process be closing pipe line, the backflow of powder then can not appear.2, the powder burning is comparatively stable.Shunting actuator of the present utility model can in time be adjusted as required and enter the ducted powder amount of two-stage conveying, makes the powder that enters in the powder rifle keep suitable amount, thereby guarantees the stable of burning.In a single day and need adjust and reduce the ducted powder amount of two-stage conveying that enters, and then unnecessary powder flows back to conveyer again by return duct, has guaranteed that the powder conveying more is linear, and whole induction system is more stable.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified:
Fig. 1 is the arrangements of components figure of embodiment of the present utility model;
Fig. 2 is the A portion enlarged drawing of Fig. 1;
Fig. 3 is that the master of shunting actuator of the present utility model looks cutaway view.
Among the figure: 10, filler bin; 20, conveyer, 21, refluxing opening, 22, discharging opening; 30, one-level conveyance conduit, 31, the one-level distributor, 311, the shunting actuator, 3110, chamber, 3111, feed pipe, 3112, first discharge nozzle, 3113, second discharge nozzle, 3114, prerotation vane, 3115, return duct; 40, centrifugal high pressure fan; 50, two-stage conveying pipeline, 51, secondary splitter; 60, powder rifle; 70, kiln; 80, the clear gas blow pipe of high pressure; 90, air compressor machine.
The specific embodiment
Embodiment, see illustrated in figures 1 and 2: negative pressure transportation powder combustion system comprises filler bin 10.The bottom of this filler bin 10 is communicated with conveyer 20, and this conveyer 20 can be common equipment such as conveying worm.This conveyer 20 is provided with discharging opening 22, this discharging opening 22 is communicated with one-level conveyance conduit 30, these one-level conveyance conduit 30 rear ends are provided with one-level distributor 31, these one-level distributor 31 rear ends are communicated with at least 2 two-stage conveying pipelines 50, these two-stage conveying pipeline 50 rear ends are provided with secondary splitter 51, these secondary splitter 51 rear ends are communicated with at least 2 powder rifles 60, and the discharge end of this powder rifle 60 stretches in the kiln 70.Promptly, the powder that is stored in this filler bin 10 enters one-level conveyance conduit 30 through conveyer 20, distribution through one-level distributor 31 enters two-stage conveying pipeline 50, and the distribution through secondary splitter 51 enters in the powder rifle 60 again, finally is ejected in the kiln 70 by powder rifle 60 and burns.In the utility model, the middle part of this one-level conveyance conduit 30 is provided with centrifugal high pressure fan 40.That is, this centrifugal high pressure fan 40 with powder from discharging opening 22 sucking-offs of conveyer 20 and enter in the one-level distributor 31.At this moment, the inside of conveyer 20 forms negative pressure, thereby powder can be in discharging opening 22 flow backwards back filler bin 10.Simultaneously, the centrifugal high pressure fan 40 that is adopted is for the roots blower of original technology, and cost is lower, and avoids using comparatively loaded down with trivial details parts such as airlock, has further reduced the preparation cost of this powder combustion system.
Optimize, in conjunction with shown in Figure 3: be provided with shunting actuator 311 between this one-level distributor 31 and the two-stage conveying pipeline 50.Concretely, this shunting actuator 311 is provided with chamber 3110, and this chamber 3110 is provided with feed pipe 3111 and first discharge nozzle 3112 and second discharge nozzle 3113, and is provided with prerotation vane 3114 in this chamber 3110.Obviously, this prerotation vane 3114 can rotate, thereby makes this feed pipe 3111 and 3112 connections of this first discharge nozzle or make this feed pipe 3111 and 3113 connections of this second discharge nozzle.Simultaneously, these feed pipe 3111 these one-level distributors 31 of connection, this first discharge nozzle 3112 are communicated with these two-stage conveying pipelines 50, this second discharge nozzle 3113 is communicated with return duct 3115.At this moment, this conveyer 20 is provided with refluxing opening 21, and this return duct 3115 is communicated to this refluxing opening 21, and this prerotation vane 3114 is connected with power set (not shown on the figure), and these power set are connected with automaton (not shown on the figure).Certainly, this automaton includes the temperature sensor that is arranged in the kiln 70.Like this, in case the temperature in the kiln 70, this automaton information of coming then according to each sensor passes, and according to program setting, adjust the angle of this prerotation vane 3114 voluntarily, thereby adjust this one-level distributor 31 automatically and enter powder amount in this first discharge nozzle 3112, and then powder rifle 60 is injected into powder amount in this kiln 70 and changes and kept the stable of temperature in the kiln 70.Simultaneously, for unnecessary powder, then the chamber 3110 through this shunting actuator 311 enters the refluxing opening 21 that this second discharge nozzle 3113 then enters conveyer 20.
Further, the power set that this prerotation vane 3114 connects are stepless speed-change motor, and the automaton that these power set connect is the PID controller.Such power set and automaton are all comparatively common, and it is easy to use, especially the PID controller has simple in structure, good stability, reliable operation, advantage easy to adjust, be applied in the comparatively abominable and combustion system of having relatively high expectations of environment comparatively reliably, can in time make feedback according to information.
The situation that powder stops up occurs for fear of this negative pressure transportation powder combustion system, this two-stage conveying pipeline 50 is communicated with the clear gas blow pipe 80 of high pressure, and the clear gas blow pipe 80 of this high pressure is connected with air compressor machine 90.Like this, by to importing gases at high pressure in the pipeline, can dredge pipeline.
The above only is a preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (4)
1. negative pressure transportation powder combustion system, comprise filler bin (10), the bottom of this filler bin (10) is communicated with conveyer (20), this conveyer (20) is provided with discharging opening (22), this discharging opening (22) is communicated with one-level conveyance conduit (30), this one-level conveyance conduit (30) rear end is provided with one-level distributor (31), this one-level distributor (31) rear end is communicated with at least 2 two-stage conveying pipelines (50), this two-stage conveying pipeline (50) rear end is provided with secondary splitter (51), this secondary splitter (51) rear end is communicated with at least 2 powder rifles (60), the discharge end of this powder rifle (60) stretches in the kiln (70), it is characterized in that: the middle part of described one-level conveyance conduit (30) is provided with centrifugal high pressure fan (40).
2. negative pressure transportation powder combustion system according to claim 1, it is characterized in that: be provided with shunting actuator (311) between described one-level distributor (31) and the two-stage conveying pipeline (50), this shunting actuator (311) is provided with chamber (3110), this chamber (3110) is provided with feed pipe (3111) and first discharge nozzle (3112) and second discharge nozzle (3113), and be provided with prerotation vane (3114) in this chamber (3110), simultaneously, this feed pipe (3111) is communicated with this one-level distributor (31), this first discharge nozzle (3112) is communicated with this two-stage conveying pipeline (50), this second discharge nozzle (3113) is communicated with return duct (3115), this conveyer (20) is provided with refluxing opening (21), this return duct (3115) is communicated to this refluxing opening (21), and this prerotation vane (3114) is connected with power set, and these power set are connected with automaton.
3. negative pressure transportation powder combustion system according to claim 2 is characterized in that: the power set that described prerotation vane (3114) connects are stepless speed-change motor, and the automaton that these power set connect is the PID controller.
4. according to each described negative pressure transportation powder combustion system in the claim 1 to 3, it is characterized in that: described two-stage conveying pipeline (50) is communicated with the clear gas blow pipe of high pressure (80), and the clear gas blow pipe of this high pressure (80) is connected with air compressor machine (90).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320055670 CN203099878U (en) | 2013-01-31 | 2013-01-31 | Negative pressure powder conveying and combusting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320055670 CN203099878U (en) | 2013-01-31 | 2013-01-31 | Negative pressure powder conveying and combusting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203099878U true CN203099878U (en) | 2013-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320055670 Expired - Fee Related CN203099878U (en) | 2013-01-31 | 2013-01-31 | Negative pressure powder conveying and combusting system |
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| Country | Link |
|---|---|
| CN (1) | CN203099878U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075741A (en) * | 2013-01-31 | 2013-05-01 | 佛山市沛沣科技有限公司 | Negative pressure delivery powder combustion system |
-
2013
- 2013-01-31 CN CN 201320055670 patent/CN203099878U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075741A (en) * | 2013-01-31 | 2013-05-01 | 佛山市沛沣科技有限公司 | Negative pressure delivery powder combustion system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20150131 |
|
| EXPY | Termination of patent right or utility model |