CN103453762B - Furnace body pressure measuring device for pellet shaft furnace - Google Patents
Furnace body pressure measuring device for pellet shaft furnace Download PDFInfo
- Publication number
- CN103453762B CN103453762B CN201310420655.XA CN201310420655A CN103453762B CN 103453762 B CN103453762 B CN 103453762B CN 201310420655 A CN201310420655 A CN 201310420655A CN 103453762 B CN103453762 B CN 103453762B
- Authority
- CN
- China
- Prior art keywords
- pressure
- stove
- furnace
- pressure pipe
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Processing Of Solid Wastes (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention provides a technical scheme of a furnace body pressure measuring device for a pellet shaft furnace. According to the technical scheme, the furnace body pressure measuring equipment comprises an in-furnace pressure obtaining tube and a pressure measuring component, wherein a blowing and sweeping device is arranged between the in-furnace pressure obtaining tube and the pressure measuring component, and used for blowing stacked dust in a pipeline into the pellet shaft furnace; the blowing and sweeping device comprises a dust collector; the dust collector is connected with one end of the in-furnace pressure obtaining tube, which stretches out of the furnace body; the lower part of the dust collector is connected in series with an ash valve; the upper part of the dust collector is connected with the pressure measuring component through a dusted pressure obtaining tube; a pressure obtaining valve is arranged on the dusted pressure obtaining tube; a blowing and sweeping air pipeline is connected onto the dusted pressure obtaining tube between the pressure obtaining valve and the dust collector; a blowing and sweeping valve is arranged on the blowing and sweeping air pipeline. The furnace body pressure measuring device for the pellet shaft furnace is simple in structure, easy to operate, and convenient to maintain, and solves the technical problem that the inner pressure of the pellet shaft furnace can not be measured due to pipeline blocking in the prior art, and achieves long-time on-line stable measurement of the inner pressure of the pellet shaft furnace, and has great promotion and use values.
Description
Technical field
What the present invention relates to is a kind of device for pressure measurement, especially a kind of palletizing shaft furnace shaft device for pressure measurement.
Background technology
Palletizing shaft furnace technique is a kind of conventional pellet production technology, mainly green-ball is carried out high-temperature roasting, makes the ripe ball that mechanical strength is higher.Green-ball enters stove from palletizing shaft furnace top panel, sequentially passes through dry zone, preheating zone, roasting band, salband, discharge bottom palletizing shaft furnace by effect of weight.Green-ball in descending process through super-dry, preheating, roasting, cooling age ball.Need in production process to blast cold wind by palletizing shaft furnace salband, cold wind is up to furnace roof by the gap between stock column from bottom to top and discharges from flue.Cold wind is becoming hot blast by the heat absorbed in high temperature ripe ball during stock column, and ripe ball is cooled, and heat upwards transmits with air flowing the preheating and the drying that are conducive to green-ball.The impact of the factor such as flowing material feeding post shapes, permeability of stock column of air in palletizing shaft furnace is uneven distribution, the regional air pressure that flowing velocity is fast is in theory low, the slow regional air pressure of flowing velocity is high, can the change of gas flow rates distribution and permeability of stock column in reacting furnace by detecting shaft each portion pressure, instruct operating personnel's discharge to adjust gas permeability in stove, optimize palletizing shaft furnace and produce.But due to the impact of high temperature in palletizing shaft furnace and dust, conventional pressure checking device can not long-term online stable operation at the scene, easily blocks, just normally can not measure perpendicular furnace pressure after blocking, thus affecting the production efficiency of pelletizing, this is the weak point existing for prior art.
Summary of the invention
Technical problem to be solved by this invention, be exactly for the deficiency existing for prior art, and a kind of technical scheme of palletizing shaft furnace shaft device for pressure measurement is provided, this programme structure is simple, be easy to operation, maintenance and repair is convenient, solves the technical problem that normally cannot detect pressure in palletizing shaft furnace because of line clogging in prior art, present invention achieves long-term online stably measured palletizing shaft furnace shaft pressure, have very large popularizing value.
This programme is achieved by the following technical measures: a kind of palletizing shaft furnace shaft device for pressure measurement, comprise pressure pipe and pressure measurement unit in stove, pressure measurement unit obtains furnace pressure by pressure pipe in stove and measures, and the feature of this programme is: in stove, be also provided with the blow device for being blown into by the laying dust in pipeline in palletizing shaft furnace between pressure pipe and pressure measurement unit; Described blow device comprises dust arrester, one end that described dust arrester stretches out outside body of heater with pressure pipe in stove is connected, the bottom of described dust arrester is in series with ash-valve, and top pressure pipe after dirt of this dust arrester is connected with described pressure measurement unit, and after dirt, pressure pipe is provided with pressure measuring valve; After dirt between pressure measuring valve and dust arrester, pressure pipe is also connected with sweep gas pipeline, sweep gas pipeline is provided with blow down valve.
The feature of this programme also has, and described pressure measurement unit is pressure transmitter; Described pressure transmitter is positioned at outside body of heater; In described stove, one end of pressure pipe is positioned at body of heater, and in stove, pressure pipe passes furnace wall and stretches out outside body of heater; One end that in described stove, pressure pipe stretches in body of heater connects dust board; Described dust board is just evenly distributed with to the position of pressure pipe in stove the square hole or non-circular hole that the length of side is pelletizing radius; In described stove, pressure pipe is provided with semicircle hole near the bottom of dust board; The lower limb of described dust board is lower than the lower limb of pressure pipe in described stove.
The beneficial effect of this programme can be learnt according to describing of such scheme, this programme comprises pressure pipe and pressure measurement unit in stove, the blow device for being blown into by the laying dust in pipeline in palletizing shaft furnace is also provided with between pressure pipe and pressure measurement unit in stove, two kinds of pipelines can be formed: furnace pressure signal piping and dust cleaning pipeline by the switching in pipeline between each valve body state, regularly can carry out detection cleaning to the laying dust in pipeline, prevent pipeline blockage, thus solve the technical problem that normally cannot detect pressure in palletizing shaft furnace because of line clogging in prior art, achieve long-term online stably measured palletizing shaft furnace shaft pressure, guarantee that instrument is operated in optimum Working, this apparatus structure is simple, maintenance and repair is convenient, thus very large popularizing value is had.As can be seen here, compared with prior art, have outstanding substantive distinguishing features and significant progress, its beneficial effect implemented also is apparent in the present invention.
Accompanying drawing explanation
Fig. 1 is the structural representation of the specific embodiment of the invention.
Fig. 2 dust board and the structural representation with pressure pipe annexation in stove.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the left view of Fig. 2.
Wherein, 1 dust board, pressure pipe in 2 stoves, 3 dust arresters, pressure pipe after 4 dirt, 5 pressure measuring valves, 6 blow down valves, 7 sweep gas pipelines, 8 ash-valves, 9 pressure transmitters, 10 furnace walls, 11 is semicircle hole.
Detailed description of the invention
For the technical characterstic of this programme can be clearly demonstrated, below by a detailed description of the invention, and in conjunction with its accompanying drawing, this programme is set forth.
Can be found out by accompanying drawing, a kind of palletizing shaft furnace shaft device for pressure measurement described in this programme, comprise pressure pipe 2 and pressure measurement unit in stove, pressure measurement unit obtains furnace pressure by pressure pipe in stove 2 and measures, pressure measurement unit in the present invention is pressure transmitter 9, is also provided with the blow device for being blown into by the laying dust in pipeline in palletizing shaft furnace in stove between pressure pipe 2 and pressure measurement unit; Described pressure transmitter 9 is positioned at outside body of heater; In described stove, one end of pressure pipe 2 is positioned at body of heater, and in stove, pressure pipe 2 passes furnace wall 10 and stretches out outside body of heater.
Described blow device comprises dust arrester 3, dust arrester 3 top is cylindrical, bottom is conical, be arranged on outside furnace wall 10, one end that described dust arrester 3 and pressure pipe in stove 2 stretch out outside body of heater is connected, and the bottom of dust arrester 3 is in series with ash-valve 8, after furnace air enters dust arrester 3, dust in air falls to lower cone part by effect of weight, dust can be discharged by regularly opening ash-valve 8; Top pressure pipe 4 after dirt of dust arrester 3 is connected with described pressure transmitter 9, and after dirt, pressure pipe 4 is longer, plays the effect of pilot and heat of cooling air, can effectively avoid high temperature on the impact of pressure transmitter 9; After dirt, pressure pipe 4 is provided with pressure measuring valve 5; After dirt between pressure measuring valve 5 and dust arrester 3, pressure pipe 4 is also connected with sweep gas pipeline 7, sweep gas pipeline 7 is provided with blow down valve 6.
One end that in described stove, pressure pipe 2 stretches in body of heater connects dust board 1, and dust board 1 is just evenly distributed with to the position of pressure pipe in stove 2 square hole or non-circular hole that the length of side is pelletizing radius, prevents pelletizing in stove from entering pressure pipeline, ensures the unimpeded of pressure pipeline.The lower limb of dust board 1 is lower than the lower limb of pressure pipe 2 in described stove, and in stove, pressure pipe 2 is provided with semicircle hole 11 near dust board 1 bottom, and when being conducive to purging, dust is blown in stove, and pore radius is about pelletizing radius.
This programme can form two kinds of pipelines by the switching of each valve body state in pipeline: furnace pressure signal piping and dust cleaning pipeline.
Open pressure measuring valve 5 and shut-down purge valve 6, ash-valve 8, form pressure pipeline in stove, and be communicated with pressure transmitter 9 by pressure pipe 4, pressure measuring valve 5 after pressure pipe 2, dust arrester 3, dirt in dust board 1, stove, mineralization pressure signal piping, carry out online pressure detecting.
Close pressure measuring valve 5 and open blow down valve 6, ash-valve 8, dust cleaning pipeline is formed by pressure pipe 4, blow down valve 6, sweep gas pipeline 7, ash-valve 8 after pressure pipe 2, dust arrester 3, dirt in dust board 1, stove, laying dust in pipeline is blown in stove by sweep gas pipeline by compressed air, and the laying dust in dust arrester 3 is discharged from ash-valve 8 in the effect of malleation and deadweight.
Pressure measuring valve 5, blow down valve 6, ash-valve 8 can adopt manually-operated gate manually to purge, also the automatic valves such as magnetic valve can be adopted, supporting automatic control means realize Long-distance Control, especially purge when timing purging or pressure anomaly and control, also can adopt manually and the hybrid mode of automatic valve.
By reference to the accompanying drawings the detailed description of the invention of invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (4)
1. a palletizing shaft furnace shaft device for pressure measurement, comprise pressure pipe and pressure measurement unit in stove, pressure measurement unit obtains furnace pressure by pressure pipe in stove and measures, and it is characterized in that: in stove, be also provided with the blow device for being blown into by the laying dust in pipeline in palletizing shaft furnace between pressure pipe and pressure measurement unit; Described blow device comprises dust arrester, one end that described dust arrester stretches out outside body of heater with pressure pipe in stove is connected, the bottom of described dust arrester is in series with ash-valve, and top pressure pipe after dirt of this dust arrester is connected with described pressure measurement unit, and after dirt, pressure pipe is provided with pressure measuring valve; After dirt between pressure measuring valve and dust arrester, pressure pipe is also connected with sweep gas pipeline, sweep gas pipeline is provided with blow down valve; One end that in described stove, pressure pipe stretches in body of heater connects dust board, described dust board is just evenly distributed with to the position of pressure pipe in stove the square hole or non-circular hole that the length of side is pelletizing radius, in described stove, pressure pipe is provided with semicircle hole near the bottom of dust board, and the lower limb of described dust board is lower than the lower limb of pressure pipe in described stove.
2. palletizing shaft furnace shaft device for pressure measurement according to claim 1, is characterized in that: described pressure measurement unit is pressure transmitter.
3. palletizing shaft furnace shaft device for pressure measurement according to claim 2, is characterized in that: described pressure transmitter is positioned at outside body of heater.
4. palletizing shaft furnace shaft device for pressure measurement according to claim 1, is characterized in that: in described stove, one end of pressure pipe is positioned at body of heater, and in stove, pressure pipe passes furnace wall and stretches out outside body of heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310420655.XA CN103453762B (en) | 2013-09-16 | 2013-09-16 | Furnace body pressure measuring device for pellet shaft furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310420655.XA CN103453762B (en) | 2013-09-16 | 2013-09-16 | Furnace body pressure measuring device for pellet shaft furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103453762A CN103453762A (en) | 2013-12-18 |
| CN103453762B true CN103453762B (en) | 2015-06-17 |
Family
ID=49736396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310420655.XA Expired - Fee Related CN103453762B (en) | 2013-09-16 | 2013-09-16 | Furnace body pressure measuring device for pellet shaft furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103453762B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6568277B1 (en) * | 1998-03-04 | 2003-05-27 | Electricite De France Service National | Method and device for measuring pressure inside a steam generator |
| CN201382839Y (en) * | 2009-03-20 | 2010-01-13 | 山东福田药业有限公司 | Pressure measuring and pressuring device |
| CN201837498U (en) * | 2010-10-15 | 2011-05-18 | 胡平杰 | Combined type anti-blocking pressure measuring and tapping device |
| CN102954855A (en) * | 2011-08-30 | 2013-03-06 | 南京梅山冶金发展有限公司 | Pressure leading device for gas pressure detection device of annular sleeve kiln |
| CN202916041U (en) * | 2012-10-24 | 2013-05-01 | 建业庆松集团有限公司 | Flue gas pressure measuring blocking prevention device |
| CN203024584U (en) * | 2012-12-12 | 2013-06-26 | 宝钢集团新疆八一钢铁有限公司 | Blowing device of pressure-sampling tube of air bellow of sintering machine |
| CN203443320U (en) * | 2013-09-16 | 2014-02-19 | 济钢集团有限公司 | Furnace body pressure measuring device of pellet shaft furnace |
-
2013
- 2013-09-16 CN CN201310420655.XA patent/CN103453762B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6568277B1 (en) * | 1998-03-04 | 2003-05-27 | Electricite De France Service National | Method and device for measuring pressure inside a steam generator |
| CN201382839Y (en) * | 2009-03-20 | 2010-01-13 | 山东福田药业有限公司 | Pressure measuring and pressuring device |
| CN201837498U (en) * | 2010-10-15 | 2011-05-18 | 胡平杰 | Combined type anti-blocking pressure measuring and tapping device |
| CN102954855A (en) * | 2011-08-30 | 2013-03-06 | 南京梅山冶金发展有限公司 | Pressure leading device for gas pressure detection device of annular sleeve kiln |
| CN202916041U (en) * | 2012-10-24 | 2013-05-01 | 建业庆松集团有限公司 | Flue gas pressure measuring blocking prevention device |
| CN203024584U (en) * | 2012-12-12 | 2013-06-26 | 宝钢集团新疆八一钢铁有限公司 | Blowing device of pressure-sampling tube of air bellow of sintering machine |
| CN203443320U (en) * | 2013-09-16 | 2014-02-19 | 济钢集团有限公司 | Furnace body pressure measuring device of pellet shaft furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103453762A (en) | 2013-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2019161638A1 (en) | Liquid slag dry centrifugal granulation and waste heat recovery system having slag buffer and flow control function | |
| CN203075912U (en) | High pressure mixed flow type spray drying granulation tower | |
| CN203349279U (en) | Pneumatic ash removal device of boiler | |
| CN203443320U (en) | Furnace body pressure measuring device of pellet shaft furnace | |
| CN103453762B (en) | Furnace body pressure measuring device for pellet shaft furnace | |
| CN103234350A (en) | Hot air supply system for belt type roasting machine | |
| CN204058500U (en) | Blast furnace radar stock rod measuring system | |
| CN202676242U (en) | High temperature radar charge level indicator device | |
| CN202725357U (en) | Horizontal type cyclone separator | |
| CN202083568U (en) | Pulverized coal sampling device | |
| CN104943124A (en) | Material gathering device | |
| CN204987897U (en) | Low -grade tail gas waste heat utilization feed bin of small -scale | |
| CN101520278A (en) | Ceramic kiln emergency cooling mode, method and device for using waste heat | |
| CN206863053U (en) | The wind speed Wind volume detector in mill entrance air channel | |
| CN203064820U (en) | Pneumatic ash conveying control device | |
| CN203037086U (en) | Closed cell perlite stock bin device | |
| CN204705171U (en) | Segmented rotary furnace | |
| CN202786315U (en) | Improved oxygen lance nitrogen seal device | |
| CN203785832U (en) | Boiler flue gas pressure sampling device | |
| CN208653090U (en) | A kind of coal tower drying system | |
| CN204325412U (en) | AOD furnace rectification systems | |
| CN203096104U (en) | Sampling and temperature-measuring device for blast-furnace gas | |
| CN205138264U (en) | Novel pressure wind air heat exchanger device | |
| CN203586678U (en) | Efficient vertical suspension downstream dryer | |
| CN202853336U (en) | Oxidation pallet shaft furnace internally-arranged cooling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20150617 Termination date: 20180916 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |