CN201762347U - Pulverized coal recovery device for blast furnace coal injection pipeline filter - Google Patents
Pulverized coal recovery device for blast furnace coal injection pipeline filter Download PDFInfo
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- CN201762347U CN201762347U CN2010202493231U CN201020249323U CN201762347U CN 201762347 U CN201762347 U CN 201762347U CN 2010202493231 U CN2010202493231 U CN 2010202493231U CN 201020249323 U CN201020249323 U CN 201020249323U CN 201762347 U CN201762347 U CN 201762347U
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- pulverized coal
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- strainer
- pipeline
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Abstract
The utility model belongs to the technical field of blast furnace coal injection equipment, in particular to a pulverized coal recovery device for a blast furnace coal injection pipeline filter, which is used for recovering pulverized coal in the filter and basically solves the problems of gun blockage by injected coal, environmental pollution and energy waste. The pulverized coal recovery device comprises two filters, two blow-down valves, a pulverized coal collector, a mixer and mating valves. The two filters are parallelly connected, the two ends of the two parallelly connected filters are respectively connected with a coal injection delivery pipeline and a blast furnace delivery pipeline, each filter is connected with one blow-down valve through a pipeline, the two blow-down valves are connected with the pulverized coal collector through pipelines, the pulverized coal collector is connected with the mixer, and the mixer is connected with a coal pulverizing device through a pulverized coal recovery main pipeline and the main pipeline valves. The pulverized coal recovery device returns the accumulated pulverized coal in the filter back to the coal pulverizing device through the blow-down valves, the pulverized coal collector and the mixer, so as to achieve reutilization of pulverized coal, avoid environmental pollution and save resources. The pulverized coal recovery device has the advantages of low investment and high benefit, is simple for operation, and can effectively reduce the labor intensity.
Description
Technical field
The utility model relates to a kind of device that the pulverized coal injection line strainer is carried out the coal dust recovery, belongs to the pulverized coal injection equipment technical field.
Background technology
Pulverized coal injection must be installed the coal dust strainer on convey coal pipe, in order to the impurity that carries in the bug dusting, it is smooth and easy, stable to guarantee that coal dust flows.After strainer work for some time, impurity can increase gradually, needs cleaning.And after the strainer off-the-line, wherein be full of coal dust and impurity.Former technology is that remaining coal dust and waste material are abandoned simultaneously, perhaps it is caused in the waterways by pipeline, so not only wastes resource but also contaminate environment, even take the humidification discharging, also just suppress airborne dust, can not take into account not only environmental protection but also aim of saving, cause the secondary pollution of water quality simultaneously.If carelessness is arranged in the strainer scale removal process slightly, impurity can be cut lock in the filter screen back, causes stifled rifle even plugging road.Therefore it is very necessary designing a kind of device that the coal dust that accumulates in the strainer is reclaimed and handles.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of can the coal dust in the strainer recovery, solves the pulverized coal injection line strainer coal dust retrieving arrangement of stifled rifle, environmental pollution and energy dissipation problem of coal powder injection from the source.
The technical scheme that solves the problems of the technologies described above is:
A kind of pulverized coal injection line strainer coal dust retrieving arrangement, it comprises strainer, wash water valve, coal collector, mixing tank and supporting valve, strainer is two, two ends, back in parallel connect coal powder injection transport pipe and blast furnace transport pipe respectively, first stopping valve and second stopping valve are installed in the two ends of each strainer, each strainer connects a wash water valve by pipeline, two wash water valves are received coal collector by pipeline, coal collector connects mixing tank, and mixing tank reclaims main pipe line by coal dust and the main pipe line valve is received in the coal dust fuel pulverizing plant.
Above-mentioned pulverized coal injection pipeline retrieving arrangement, described two strainers are connected with the pressurising airduct by equalizer valve respectively.
Above-mentioned pulverized coal injection pipeline retrieving arrangement, the bottom of described coal collector also is connected to the fluidisation device, and the fluidisation device is used for the coal dust fluidisation, and fluidisation valve and mixing tank tonifying Qi air-valve are received on the tonifying Qi wind main pipe line.
Above-mentioned pulverized coal injection pipeline retrieving arrangement, the bottom of described coal collector is provided with vision slit, and top is provided with explosion venting valve.
Adopt the pulverized coal injection pipeline retrieving arrangement of this structure, the coal dust that accumulates in the strainer turns back in the fuel pulverizing plant by wash water valve, coal collector, mixing tank, realized the utilization again of coal dust, avoided pollution to environment, also save resource, reached environmental protection, energy-conservation, the purpose of saving.The utlity model has little, the high efficiency of investment, simple to operate, can reduce labour intensity effectively, reduce the advantage of the stifled rifle phenomenon of coal powder injection.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a filter structure schematic representation;
Fig. 3 is the coal collector structural representation.
Mark is as follows among the figure: transport pipe 1, first stopping valve 2, strainer 3, equalizer valve 4, second stopping valve 5, transport pipe 6, wash water valve 7, explosion venting valve 8, coal collector 9, mixing tank 10, recovery main pipe line 11, main pipe line valve 12, inspection window 13, fluidisation device 14, mixing tank tonifying Qi air-valve 15, fluidisation valve 16, tonifying Qi wind main pipe line 17.
Embodiment
The utility model comprises strainer 3, wash water valve 7, coal collector 9, mixing tank 10 and supporting valve.
Two strainers 3 also are connected with the pressurising airduct by equalizer valve 4 respectively, so as when to need to strainer 3 air-supplies.The bottom of coal collector 9 also is connected to fluidisation device 14, and fluidisation device 14 is used for the coal dust fluidisation, and mixing tank 10 is used to improve the flowability of coal dust, and fluidisation valve 16 and mixing tank tonifying Qi air-valve 15 are received on the tonifying Qi wind main pipe line 17 by pipeline.Coal collector 9 bottoms are provided with inspection window 13, are used to clear up foreign material and internal examination.The top of coal collector 9 is provided with explosion venting valve 8, and explosion venting valve 8 plays the overpressure protection effect.
The utility model can carry out coal powder collection to strainer normally in service, also can under end-of-life state, work, below be the working process of different states:
Production status: when the normal coal supply of blast furnace (to set out on a journey is example explanation), coal dust by injecting station through transport pipe 1, by first stopping valve 2, strainer 3, second stopping valve 5 and transport pipe 6 to blast furnace.When needing cleaning strainer 3, earlier coal dust is caused down the road, close the stopping valve at strainer 3 two ends of setting out on a journey then.Pipeline powder coal strainer 3 is after the production line off-the-line, open strainer 3 bottom wash water valves 7 and reclaim coal dust main pipe line valve 12, utilize after residual pressure and pulverized coal preparation system negative pressure are introduced coal collector 9 with residual coal dust in the strainer 3, return pulverized coal preparation system processing screening through coal dust recovery channel 11 and main pipe line valve 12, realize cycling and reutilization.
Pulverized coal preparation system end-of-life state: at first open and reclaim main pipe line valve 12, open fluidisation valve 16, mixing tank tonifying Qi air valve 15, the wash water valve 7 of coal collector 9 bottoms then successively, open the equalizer valve 4 of strainer 3, coal dust promptly enters coal collector 9 along wash water valve 7, returns pulverized coal preparation system screening utilization again through reclaiming main pipe line mixing tank 10 and main pipe line valve 12.
If down pipe filter 3 needs cleaning, its operation steps with set out on a journey identical.
Claims (4)
1. pulverized coal injection line strainer coal dust retrieving arrangement, it is characterized in that: it is by strainer [3], wash water valve [7], coal collector [9], mixing tank [10] and supporting valve are formed, strainer [3] is two, two ends, back in parallel connect coal powder injection transport pipe [1] and blast furnace transport pipe [6] respectively, first stopping valve [2] and second stopping valve [5] are installed in the two ends of each strainer [3], each strainer [3] connects a wash water valve [7] by pipeline, two wash water valves [7] are received coal collector [9] by pipeline, coal collector [9] connects mixing tank [10], and mixing tank [10] reclaims main pipe line [11] by coal dust and main pipe line valve [12] is received in the coal dust fuel pulverizing plant.
2. pulverized coal injection pipeline retrieving arrangement according to claim 1 is characterized in that: described two strainers [3] are connected with the pressurising airduct by equalizer valve [4] respectively.
3. pulverized coal injection pipeline retrieving arrangement according to claim 2, it is characterized in that: the bottom of described coal collector [9] also is connected to and is used for coal dust fluidizing fluidisation device [14], and fluidisation valve [16] and mixing tank tonifying Qi air-valve [15] are received on the tonifying Qi wind main pipe line [17].
4. pulverized coal injection pipeline retrieving arrangement according to claim 3 is characterized in that: the bottom of described coal collector [9] is provided with vision slit [13], and top is provided with explosion venting valve [8].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202493231U CN201762347U (en) | 2010-07-07 | 2010-07-07 | Pulverized coal recovery device for blast furnace coal injection pipeline filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202493231U CN201762347U (en) | 2010-07-07 | 2010-07-07 | Pulverized coal recovery device for blast furnace coal injection pipeline filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201762347U true CN201762347U (en) | 2011-03-16 |
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ID=43714957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202493231U Expired - Fee Related CN201762347U (en) | 2010-07-07 | 2010-07-07 | Pulverized coal recovery device for blast furnace coal injection pipeline filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201762347U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109943675A (en) * | 2019-04-16 | 2019-06-28 | 中冶赛迪技术研究中心有限公司 | The moveable rapid block-cleaning device and method of coal dust Zhi Guanyong integral type |
| CN113587131A (en) * | 2021-06-18 | 2021-11-02 | 国家能源集团山东石横热电有限公司 | Pulverized coal conveying system |
| CN114317851A (en) * | 2021-12-29 | 2022-04-12 | 阿尔法（江苏）重工科技有限公司 | Online automatic cleaning device for blast furnace coal injection system and control method thereof |
-
2010
- 2010-07-07 CN CN2010202493231U patent/CN201762347U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109943675A (en) * | 2019-04-16 | 2019-06-28 | 中冶赛迪技术研究中心有限公司 | The moveable rapid block-cleaning device and method of coal dust Zhi Guanyong integral type |
| CN109943675B (en) * | 2019-04-16 | 2023-09-12 | 中冶赛迪技术研究中心有限公司 | Integral movable rapid blocking removing device and method for pulverized coal branch pipe |
| CN113587131A (en) * | 2021-06-18 | 2021-11-02 | 国家能源集团山东石横热电有限公司 | Pulverized coal conveying system |
| CN114317851A (en) * | 2021-12-29 | 2022-04-12 | 阿尔法（江苏）重工科技有限公司 | Online automatic cleaning device for blast furnace coal injection system and control method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20180707 |