CN103274217B - The novel defeated coal cone pump of outlet anti-clogging - Google Patents
The novel defeated coal cone pump of outlet anti-clogging Download PDFInfo
- Publication number
- CN103274217B CN103274217B CN201310248302.6A CN201310248302A CN103274217B CN 103274217 B CN103274217 B CN 103274217B CN 201310248302 A CN201310248302 A CN 201310248302A CN 103274217 B CN103274217 B CN 103274217B
- Authority
- CN
- China
- Prior art keywords
- pipeline
- warehouse
- pressurising
- valve
- outlet
- 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.)
- Active
Links
Landscapes
- Air Transport Of Granular Materials (AREA)
Abstract
The novel defeated coal cone pump of a kind of outlet anti-clogging, comprise warehouse, Pulverized Coal Bin, pipeline of coalingging, pressurising pipeline, admission line, blending box, transfer line, scavenging pipeline, tonifying Qi pipeline, fluidisation of coalingging pipeline and bleeder line, choked flow web plate is provided with bottom warehouse and between blending box, described pressurising pipeline comprises pressurising pipe and fluidization pipe, pressurising pipeline is provided with pressure-modulation valve, described transfer line initial end is provided with outlet shutoff valve, is connected with scavenging pipeline after shutoff valve.The novel defeated coal cone pump of this outlet anti-clogging can carry out the coal dust long-distance sand transport of large discharge; powder to air ratio is high, and solar term are obvious, and multistage pressure protection and level pressure regulate automatically; solve the cone pump defeated coal blocking pipe phenomenon that outlet levelling pipe is longer, reduce material consumption energy consumption and ensure normal production.
Description
Technical field
The present invention relates to Geldart-D particle field, belong to the novel defeated coal cone pump of one outlet anti-clogging of low pressure large discharge.
Background technology
At present, domestic blast furnace is normally produced and all can be carried out coal powder injection in stove, also will be equipped with the relevant devices such as coal grinder.If powder process ability is enough large, coal dust can also can be utilized to carry out defeated coal as the equipment place of fuel or supplemental fuel to other, relevant device capital fund can be saved like this.In order to coal dust energy large discharge smooth and easy conveying in ground in pipeline, the past remotely pulverized coal conveying of present pulverized coal preparation system substantially all selects dense phase pump load transfer device, the cone pump be namely generally called.During conveying, in sealed cabin body, be sent to required field of employment by power gas mixed coal powder.
In the normal process of pulverized coal conveying, after a bit of horizontal feed pipeline of cone pump conveying outlet, all need design one section of vertical uplift pipeline, solid gravity decline gas flow is utilized to rise, increase the boiling fluidisation mixed effect of conveying gas and coal dust (as shown in Figure 1, in figure, 101 is vertical pipeline section boiling fluidisation interface point), because only there is mixture in pipeline after rising pipeline section, it effectively prevents that coal dust occurs in horizontal pipeline section and gathers blocking, but utilize the method to make dense phase pump lose its original intention as thick and thin phase burner.The powder controlled atmosphere throttlingization mixing should carried out in comparatively roomy blending box, change in the relatively little straight length in cross section and carry out, powder gas concentration will reduce, and same operational throughput will increase gas consumption.And if transfer line is by even for ascent stage sublevel, or pipeline tilts to install, or point of delivery and acceptance point sea level elevation very nearly the same, under cone pump mixing Indoor Air and powder adjust rational situation, feed status is except the flowing of denseer mixture, mixed airflow can also drive the powder of level or tilted tube bottom deposition to do the flow forward conveying of sand dune shape, improves transport efficiency.But in current existing technique, unreasonable because of cone pump structure, blending box does not have the gentle proportion adjustment of powder and fully mixes, transfer out the flat pipeline of the horizontal saliva of mouth longer time, continuing high dense coal dust supply will make the bottom powder layer thickness in horizontal pipe more and more higher, and coal dust is in horizontal pipe during filling long enough distance, resistance increases, air-flow reduce, finally will cause the pipeline plugging accident of pipe choking (as shown in Figure 2, in figure 201 for horizontal pipeline section coal dust gather blocking point).
The to sum up analysis of two kinds of mounting processs, though outlet adds vertical pipeline section can reduce or remit pipeline jam accident, powder to air ratio cannot promote, and gas consumption increases.Particularly coal dust conveying is considered, generally using nitrogen as pumped (conveying) medium for safety and aqueous ingredients two aspect.Powder to air ratio cannot rise to peak, then cannot reach energy-saving effect.And though the mode of movement of level and inclination pipeline can reach the dense conveying of Mi Xianggao in theory, existing cone pump structure existing defects, the easy plugging of high dense conveying, adopting time conveying of the little loadings multifrequency of every batch of material then to consume gas increases, valve shortening in service life.And after high dense conveying frequently plugging occurs, except impact is produced, get rid of plugging and also want labor intensive, separately need consume source of the gas, waste coal dust.Plugging also can cause warehouse pressure increase to the bleed pressure value of relatively high pressure in addition, has an impact to the sealing property of each valve.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of outlet anti-clogging novel defeated coal cone pump, automatically can regulate lower coal amount by pressure setting; Multistage pressure is protected, and prevents plugging; According to operating mode, progressively improve powder to air ratio, reduce nitrogen consumption, economize energy; Increase airshed and lower coal amount, promote traffic capacity, enhance productivity.
The technical solution adopted for the present invention to solve the technical problems is: the novel defeated coal cone pump of a kind of outlet anti-clogging, comprise warehouse, Pulverized Coal Bin, blending box, to coaling pipeline, pressurising pipeline, admission line, transfer line, scavenging pipeline, tonifying Qi pipeline, fluidisation of coalingging pipeline and bleeder line, described warehouse top is communicated with at the bottom of Pulverized Coal Bin by pipeline of coalingging, Pulverized Coal Bin tapering and fluidisation pipeline connection of coalingging, bleeder line is connected between warehouse with Pulverized Coal Bin, warehouse side and pressurising pipeline connection, warehouse bottom is communicated with blending box, choked flow web plate is provided with between described blending box and warehouse, blending box and admission line, transfer line is communicated with, described transfer line initial end is provided with outlet shutoff valve, transfer line after outlet shutoff valve connects scavenging pipeline, transfer line and tonifying Qi pipeline connection, described tonifying Qi pipeline and pressurising pipeline connection.
Described pressurising pipeline comprises the upper pressurising pipe be communicated with warehouse top and the fluidization pipe be communicated with the blending box of warehouse bottom, the mouth of described fluidization pipe is connected with short tube, described short tube extends to choked flow web plate top, and pressurising pipeline is provided with pressure-modulation valve.
The feature that the present invention exports the novel defeated coal cone pump of anti-clogging is below described in detail in detail:
First, it is spacious empty that structure due to cone pump is mostly outlet, in order to reach the gentle object that can mix of powder, a slice choked flow web plate is installed bottom warehouse and between the flange of bottom blending box, like this, after conveying gas is opened, it is not just coal dust in the storehouse of whole accumulation that air-flow is met right, but the part coal dust flowed out from mesh.Delivery air amount is certain, by regulating lower coal amount, just can change powder to air ratio.
Described choked flow web plate is round plate, and round plate evenly has some mesh, and choked flow web plate is easy to process, and tooling cost is lower.
Then, a more than short tube to choked flow web plate is drawn in the fluidisation hole on original blending box, fluidization as warehouse pressurising pipeline.It can form a cyclone district on choked flow web plate, pulverizes low intensive moisture knot coal dust block, can prevent moisture knot coal dust from blocking choked flow web plate hole, weaken lower coal regulating power.This short tube is communicated with pressurising pipe on warehouse by fluidization pipe, and access regulates source of the gas, then seals in a pressure-modulation valve.Control pressurising airshed by the aperture of system automatic regulating valve, thus control lower coal amount.When powder to air ratio in delivery duct increases, storehouse is pressed and will be risen, and system can turn down pressurising suction quantity automatically, and lower coal amount reduces thereupon, and after coal amount reduces, chimneying resistance reduces, pressure drop, and valve opens the lower coal amount of large increasing more automatically.So just reach the object by setting pressure point dynamic adjustments powder to air ratio, both can not cause plugging, and not waste source of the gas again.
Secondly, because some coal dust in the process of coalingging can enter blending box through choked flow web plate, automatic cycle stopping transportation supply gas after in storehouse overbottom pressure when delivery duct discharges, also can bring part bed material into, carry the gas unlatching starting stage still plugging may occur in next time like this, therefore increase by a road scavenging pipeline in transfer line initial end, when system auto state always with a low discharge gas flow purging transfer line.It is except being transported away the bed material powder of transfer line initial segment, the force value of circulation terminal suitably can also be improved in system auto-programming, by clout amount in bed material discharge rate in the storehouse of increase and whole pipeline, in charging flow process, transfer to sweep gas to complete conveying, consequently decrease the time of delivery of every batch, add efficiency.
Finally, because delivery system adopts negative pressure cloth bag to receive the mode of powder, in the process of coalingging, some coal dust is inhaled in the delivery duct of negative pressure, the coning tower tray of the Pulverized Coal Bin of conduit upper of coalingging also can impact coal dust and enter delivery duct after melting and opening, coaling the time more progress to enter the coal dust of delivery duct more, this weighs warehouse and has an impact, and also may cause plugging in addition, therefore increase an outlet shutoff valve in delivery duct initial end, avoid the generation of above-mentioned situation.
In addition, (as large in pulverized coal water content high viscosity under special circumstances, misoperation etc.), if also can plugging be there is, as purged cannot carry out block clearing operation by above-mentioned low discharge, or plugging back cabin body internal pressure does not decline continually and steadily, or after opening blow off valve, release purges still invalid again, then clear up blocking by manual block clearing pipeline.
The present invention exports the novel defeated coal bunker formula pump of anti-clogging and has the following advantages:
(1) add a slice choked flow web plate, thus make conveying gas and coal dust have the possibility adjusted and mix, best lower coal speed can be reached, and prevent plugging;
(2) fluidization pipe draws short tube to choked flow web plate upper surface, adds fluidisation, prevents choked flow web plate bore portion from blocking;
(3) add a pressure-modulation valve, pressure-modulation valve can control flow of aerating air in warehouse, thus it is controlled to reach lower coal amount, and dynamic adjustments powder to air ratio, also can adjust parameter according to field working conditions, and alerting ability is good;
(4) on transfer line, increase by a road scavenging pipeline, constantly can carry out gas flow purging to transfer line, prevent plugging further;
(5) add outlet shutoff valve in transfer line initial end, ensure continuous data, and also can prevent the plugging at conveying initial stage from occurring.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is the part-structure schematic diagram of prior art middle outlet pipeline section cone pump vertically upward;
Fig. 2 is the part-structure schematic diagram of the cone pump of prior art middle outlet pipeline section level;
Fig. 3 is that the present invention exports the novel defeated coal bunker formula pump structure schematic diagram of anti-clogging;
In figure: 1. warehouse, 2. to coaling pipeline, 3. charging valve, 4. Pulverized Coal Bin, 5. bleeder line, 6. blow off valve, 7. fluidisation of coalingging pipeline, 8. coning tower tray valve, 9. pressure tester, 10. admission line, 11. reducing valves, 12. transfer valves, 13. blending boxs, 14. transfer lines, 15. outlet shutoff valves, 16. scavenging pipelines, 17. blow down valves, 18. block clearing pipelines, 19. manual block clearing valves, 20. tonifying Qi pipelines, 21. fluidisation gulp valves, 22. tonifying Qi reducing valves, valve is propped up in 23. tonifying Qi, 24. pressurising pipelines, 25. pressure-modulation valves, 26. fluidization pipes, pressurising pipe on 27., 28. choked flow web plates, 29. short tubes, 101. vertical pipeline section boiling fluidisation interface point, 201. horizontal pipeline section coal dusts gather blocking point.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
As shown in Figure 3, the novel defeated coal cone pump of a kind of outlet anti-clogging, comprises warehouse 1, the composition such as pipeline 2 of coalingging, bleeder line 5, fluidisation of coalingging pipeline 7, pressure tester 9, admission line 10, blending box 13, transfer line 14, scavenging pipeline 16, manual block clearing pipeline 18, tonifying Qi pipeline 20, pressurising pipeline 24, choked flow web plate 28.It is divided into charging, conveying, adjustment, manual intervention four bulk substantially.Describe in detail below in conjunction with diagram.
In Fig. 3, feed one piece and substantially comprise following facility: the warehouse 1 intending loading coal dust; Coaling the charging valve 3 of pipeline 2, it is composed in series by two clock valves, can increase sealing reliability during Geldart-D particle; The Pulverized Coal Bin 4 on charging valve 3 top is the source, storehouse of pulverized coal conveying.When plan is coaling, first open the blow off valve 6 of warehouse 1 upper exhaust line 5, bleeder line 5 is connected to Pulverized Coal Bin 4 top, powder bag dust collector is received because Pulverized Coal Bin 4 has, be negative pressure in storehouse, blow off valve 6 is opened in back cabin body 1 and is also just communicated with for negative pressure state, ready for coalingging.In addition after, charging valve 3 is opened from the bottom to top respectively, and Pulverized Coal Bin 4 starts to feed in warehouse 1.For accelerating feed rate, opening time point and the time span of the coning tower tray valve 8 of coalingging on fluidisation pipeline 7 can be preset according to operating mode.Opening of coning tower tray valve 8, one can accelerate feed rate, and two can purge bleeder line 5 indirectly, and make its coal dust flow velocity be unlikely because being mixed into when being naturally vented gradually deposit blocking slowly, lose exhaust effect, impact is coaling.When the coal dust loading weight in warehouse 1 reaches certain value, control system first closes top charging valve 3 automatically, then closes bottom charging valve 3, finally closes blow off valve 6, automatically completes charging process.This wherein, coning tower tray valve 8 because of preset duration of valve opening be less than charge time, be in closed condition.
In Fig. 3, carry one piece and substantially comprise following facility: admission line 10 provides main supplying nitrogen, and pipeline comprises Self-operated reducing valve 11, transfer valve 12; Admission line connects blending box 13 left end, blending box 13 right-hand member connecting conveying pipe road 14, and blending box 13 upper end connects warehouse 1, is provided with a slice choked flow web plate 28 between itself and warehouse 1; On transfer line 14, be provided with an outlet shutoff valve 15, have access to thinner scavenging pipeline 16 after outlet shutoff valve 15, scavenging pipeline 16 is provided with blow down valve 17; Another tonifying Qi pipeline 20 and transfer line 14 walk abreast, and segmentation accesses tonifying Qi on transfer line 14, and to prop up valve 23 some, tonifying Qi pipeline 20 have a shutoff valve be fluidisation gulp valve 21, have thereafter a manual tonifying Qi reducing valve 22.When system proceeding to feed status by having coaling in automatically, first opening outlet shutoff valve 15, then opening gulp valve 21, after open transfer valve 12, start to carry out defeated coal process.The judging point that defeated coal terminates is pressure tester 9, and warehouse 1 internal pressure rises gradually after conveying starts, and when all comprising powder gas mixture in transfer line 14 whole tube section, resistance reaches maxim, and warehouse 1 pressure is in maxim thereupon.Conveying rear, in warehouse 1, coal dust amount is asymptotic is zero, powder to air ratio decline, in pipeline powder to air ratio also gradually under gradually, storehouse pressure decrease.When storehouse pressure is reduced to a default force value, namely gives tacit consent to this batch of material and carried, automatically proceed to the charging process of next batch of material.
In defeated coal process, the presence or absence of variotrol and quality are related to input and the expenditure of continuous production and human and material resources.During cone pump before the present invention is practical uses, or system conveying powder to air ratio is low, and energy consumption is large, or frequent plugging, lost labor and raw material.Feature of the present invention is just can dynamic adjustments operating mode, promotes while powder to air ratio reduces gas consumption, eliminates plugging phenomenon completely, avoids extra human input and nitrogen and coal dust loss.Automatic adjustment of the present invention one piece comprises following facility: pressurising pipeline 24, pneumatic pressure-regulating valve 25, upper pressurising pipe 27, fluidization pipe 26, choked flow web plate 28, when separately comprising a road auto state often open scavenging pipeline 16 and on blow down valve 17.Below describe in detail.
In Fig. 3, pressurising pipeline 24 is connected to tonifying Qi pipeline 20, one because of the characteristic requirements of the pressure-modulation valve 25 on pressurising pipeline 24, pressure-modulation valve 25 is general without hermetically sealed index, therefore in basic production technology be all be installed on shutoff valve after, two, because namely connecting blending box 13 after the main transfer valve 12 of existing cone pump, cannot set up stable high pressure after its valve, in order to avoid adding an independently pressurising shutoff valve again, after therefore pressurising pipeline 24 is taken at gulp valve 21.After conveying starts, pressure-modulation valve 25 monitors the opening time point of transfer valve 12, and after adding a modifiable time delay, control cock drops into automatically, and valve is full off state before.Why add time delay, can bleed in blending box 13 gather because there being coal dust in the process of coalingging, conveying starts coal under rear direct weighting, likely plugging occurs.Drop into automatically at pressure-modulation valve 25, it compares according to the force value in warehouse 1 and preset value, by PID arithmetic, and the aperture of dynamic regulating valve.The large pressure increase of the many resistances of powder then closes minor valve, and the few resistance of powder lowers then opens large valve, and valve opening affects charge air in warehouse 1, and charge air affects the lower coal speed in choked flow web plate 28.In the conveying intermediary, the action of pressure-modulation valve 25 makes the pressure in warehouse 1 remain near preset value, and powder to air ratio reaches maxim.In the stage upon delivery, because coal dust amount in storehouse reduces, even if pressure-modulation valve 25 reaches standard-sized sheet can not keep preset pressure value, be now in coal dust feed status in pipeline, powder to air ratio declines to some extent.When pressure is lower than another preset value, namely assert that course of conveying completes, terminate conveying flow process.
Pressurising pipeline 24 You Liangge branch, is respectively pressurising pipe 27 and fluidization pipe 26.Upper pressurising pipe 27 is present cone pump existing structure, and fluidization pipe 26 was that blending box 13 fluidisation is used originally.Adding choked flow web plate 28 to after reaching coal dust and nitrogen and can mixing the object of adjustment, because choked flow web plate 28 eyelet is finer and closely woven, have moisture knot coal dust block blocking mesh when pulverized coal water content is higher.After consequently in warehouse 1, pressurising force value is raised to default value, choked flow web plate 28 times coal amounts synchronously do not rise, and cannot improve powder to air ratio.Therefore when not changing cone pump monnolithic case structure, utilize the fluidisation hole of blending box 13, fluidization pipe 26 exports the upper plane of termination short tube 29 to a choked flow web plate 28, export along edge laterally, after fluidized gas is introduced, a cyclone district can be manufactured on choked flow web plate 28 top, it can pulverize the coal dust block of moisture knot, prevent mesh from blocking, the ability of coal dust through choked flow web plate 28 can be strengthened again, indirectly improve powder to air ratio.
Scavenging pipeline 16 increases for tackling production reality for the present invention, acts on obviously.In order to save nitrogen, can ensure that when coal handling system is stopped using cutting off all sources of the gas exports, and adds pneumatic cut-off valve 17 in scavenging pipeline 16.It gets to normally open when whole system transfers to automatic, always with a whole transfer line 14 of low discharge gas flow purging.This purging air-flow except can ensureing to prevent plugging, when stopping transportation can also be carried to supply gas in warehouse 1 in stress-relief process to pipeline release warehouse 1 in bed material.Being observed by operating mode again and grope, can also suitably improve pressure preset value when stopping transportation is supplied gas, reduce the defeated coal time, in the reduction time, sweep gas should being transferred to complete transportation work coalingging in the time period by carrying the part coal dust of gas conveying.Production efficiency is accelerated again while energy-conservation.Scavenging pipeline also has a maximum purposes to be light plugging phenomenon under automatically eliminating special operation condition.Through groping knowhow to find, same powder to air ratio, is more prone to when conveying gas is smaller when flow is larger coal dust blocking pipe phenomenon occurs.Low discharge purges elimination plugging and is also applied to aborning.When there is plugging, stopping all air supply sources, gradually declining with pressure in pipeline in storehouse.After reducing to zero, if add a low discharge air-flow, the coal dust of blocking slowly can be dredged and purge totally, if directly again add the air-flow of a large discharge again, coal dust still can forced into compression blocking pipe.Given this, to existing cone pump except increasing control system, larger change has also been done to system program.With the addition of multistage pressure protection, the first order is the self-regulation performance of pressure-modulation valve 25, and storehouse pressure rises because special operation condition is lasting, and pressure-modulation valve 25 exports complete shut-down automatically; For the Pipeline transport valve 12 that delivery air amount is maximum, close valve point as second stage pressure; Three-level protective is that fluidisation gulp valve 21 closes automatically; Level Four is then sweep gas, if sweep gas stops the setting value of rear pressure drop to blow down valve 17, blow down valve 17 can be opened again automatically, and other valves are as the same.After sweep gas is stopped, during Pyatyi alarm set point pressure being risen to from purging close to definite value again because of possible leakage gas, system outputting alarm, and automatically switch to manually, prompting manual intervention.Unless pursued too high powder to air ratio, can not there is plugging alarm condition in Pyatyi pressure protect under normal circumstances.
The manual intervention of system mainly refers to on-site manual block clearing operation, and it comprises following facility: manual block clearing pipeline 18, and on manual block clearing valve 19.After plugging situation occurs, as purged cannot be carried out block clearing operation by above-mentioned low discharge, or plugging back cabin body 1 internal pressure does not decline continually and steadily, or after opening blow off valve 6, release purges still invalid again, then can consider to start manual block clearing operation.During operation, the manual block clearing valve 19 at scene only need be opened by operating personal, open sweep gas or conveying gas again, because the pipeline after manual block clearing valve 19 connects the coal mill coal spout of close together, grinding machine Powder discharging fan is opened during manual block clearing, now in pipeline, negative pressure is comparatively large, and distance is comparatively near again, so the coal dust blocked during manual block clearing is easier to be purged in grinding machine.But it is invalid that manual unimpeded in use occurred existing cone pump, by transfer line segmentation flange disassembling bolts, the mode of operation that pipeline carries out block clearing need be unloaded, its science practicality of the present invention of having given counterevidence.
Compared with prior art, the present invention exports the novel defeated coal bunker formula pump of anti-clogging and has the following advantages:
(1) add a slice choked flow web plate 28, thus make conveying gas and coal dust have the possibility adjusted and mix, best lower coal speed can be reached, and prevent plugging;
(2) fluidization pipe 26 draws short tube 29 to choked flow web plate 28 upper surface, adds fluidisation, prevents choked flow web plate 28 bore portion from blocking;
(3) add a pressure-modulation valve 25, pressure-modulation valve 25 can control flow of aerating air in warehouse 1, thus it is controlled to reach lower coal amount, and dynamic adjustments powder to air ratio, also can adjust parameter according to field working conditions, and alerting ability is good;
(4) on transfer line 14, increase by a road scavenging pipeline 16, constantly can carry out gas flow purging to transfer line 14, prevent plugging further;
(5) add outlet shutoff valve 15 in transfer line 14 initial end, ensure continuous data, and also can prevent the plugging at conveying initial stage from occurring.
The technical scope of this invention is not limited to the content on specification sheets, must determine its technical scope according to right.
Claims (2)
1. the novel defeated coal cone pump of outlet anti-clogging, it is characterized in that: comprise warehouse, Pulverized Coal Bin, blending box, to coaling pipeline, pressurising pipeline, admission line, transfer line, scavenging pipeline, tonifying Qi pipeline, fluidisation of coalingging pipeline and bleeder line, described warehouse top is communicated with at the bottom of Pulverized Coal Bin by pipeline of coalingging, Pulverized Coal Bin tapering and fluidisation pipeline connection of coalingging, bleeder line is connected between warehouse with Pulverized Coal Bin, warehouse side and pressurising pipeline connection, warehouse bottom is communicated with blending box, choked flow web plate is provided with between described blending box and warehouse, blending box and admission line, transfer line is communicated with, described transfer line initial end is provided with outlet shutoff valve, transfer line after outlet shutoff valve connects scavenging pipeline, described transfer line and tonifying Qi pipeline connection, described tonifying Qi pipeline and pressurising pipeline connection,
Described pressurising pipeline comprises the upper pressurising pipe be communicated with warehouse top and the fluidization pipe be communicated with the blending box of warehouse bottom, the mouth of described fluidization pipe is connected with short tube, described short tube extends to choked flow mesh plate top, and pressurising pipeline is provided with pressure-modulation valve; Described short tube outlet along edge choked flow web edge laterally.
2. the novel defeated coal cone pump of outlet anti-clogging as claimed in claim 1, is characterized in that: described choked flow web plate is round plate, and round plate evenly has some mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310248302.6A CN103274217B (en) | 2013-06-20 | 2013-06-20 | The novel defeated coal cone pump of outlet anti-clogging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310248302.6A CN103274217B (en) | 2013-06-20 | 2013-06-20 | The novel defeated coal cone pump of outlet anti-clogging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103274217A CN103274217A (en) | 2013-09-04 |
| CN103274217B true CN103274217B (en) | 2016-03-02 |
Family
ID=49056881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310248302.6A Active CN103274217B (en) | 2013-06-20 | 2013-06-20 | The novel defeated coal cone pump of outlet anti-clogging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103274217B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110228710A (en) * | 2019-06-19 | 2019-09-13 | 武汉钢铁有限公司 | The efficient transportation system of dedusting ash and anti-clogging control method |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108016883A (en) * | 2016-11-02 | 2018-05-11 | 建浩Enc股份有限公司 | Powder conveying device |
| CN110775454A (en) * | 2019-12-02 | 2020-02-11 | 四川石油天然气建设工程有限责任公司 | Vertical barite powder operation device |
| CN114476690A (en) * | 2021-12-09 | 2022-05-13 | 大连海大自动化控制工程有限公司 | Automatic clear stifled device of defeated grey system of thermal power plant |
| CN115140558B (en) * | 2022-08-25 | 2024-05-03 | 湖南核三力技术工程有限公司 | Low-breakage pneumatic conveying method and device based on wind power flow layer exchange in pipeline |
| CN117361144B (en) * | 2023-12-08 | 2024-03-08 | 潍坊奥龙锌业有限公司 | Zinc oxide pneumatic pipeline conveying device |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5285735A (en) * | 1991-07-16 | 1994-02-15 | Diamond Engineering Co., Ltd. | Control apparatus for injection quantity of pulverized coal to blast furnace |
| CN2317217Y (en) * | 1997-01-14 | 1999-05-05 | 冶金工业部钢铁研究总院 | High efficiency storehouse type pump conveying material in bulk |
| CN101475098A (en) * | 2008-12-17 | 2009-07-08 | 阳谷祥光铜业有限公司 | High temperature smoke positive pressure conveying treatment process and special equipment thereof |
| CN101823606A (en) * | 2010-04-12 | 2010-09-08 | 杭州震乾科技有限公司 | Blade stirring type pneumatic conveyor for easy caking materials |
| CN102009850A (en) * | 2009-09-08 | 2011-04-13 | 镇江市电站辅机厂 | Conveying device in positive and negative integrated multifunctional pump system |
| CN102152972A (en) * | 2011-03-24 | 2011-08-17 | 克莱德贝尔格曼华通物料输送有限公司 | Positive pressure pneumatic conveying system and method |
| CN202124332U (en) * | 2011-06-10 | 2012-01-25 | 济南高炉长寿机械设备有限公司 | Efficient rotational-flow pneumatic conveying cabin pump device |
| US8337122B2 (en) * | 2009-11-09 | 2012-12-25 | Magnum Systems, Inc. | Continuous semi-dense pneumatic conveying system and method |
| CN202625363U (en) * | 2012-06-05 | 2012-12-26 | 天津市阿斯米机械设备制造安装工程有限公司 | Purging system for dry ash conveying in power plant |
| CN202935946U (en) * | 2012-11-27 | 2013-05-15 | 西安热工研究院有限公司 | Efficient positive-pressure pneumatic conveying system of pebble coal |
| CN103121588A (en) * | 2013-02-28 | 2013-05-29 | 云南铝业股份有限公司 | Double-pipeline concentrated phase delivery system parallel discharge and blockage device and automatic control method |
| CN203306739U (en) * | 2013-06-20 | 2013-11-27 | 中天钢铁集团有限公司 | Novel coal conveying bin pump with output blockage prevention function |
-
2013
- 2013-06-20 CN CN201310248302.6A patent/CN103274217B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5285735A (en) * | 1991-07-16 | 1994-02-15 | Diamond Engineering Co., Ltd. | Control apparatus for injection quantity of pulverized coal to blast furnace |
| CN2317217Y (en) * | 1997-01-14 | 1999-05-05 | 冶金工业部钢铁研究总院 | High efficiency storehouse type pump conveying material in bulk |
| CN101475098A (en) * | 2008-12-17 | 2009-07-08 | 阳谷祥光铜业有限公司 | High temperature smoke positive pressure conveying treatment process and special equipment thereof |
| CN102009850A (en) * | 2009-09-08 | 2011-04-13 | 镇江市电站辅机厂 | Conveying device in positive and negative integrated multifunctional pump system |
| US8337122B2 (en) * | 2009-11-09 | 2012-12-25 | Magnum Systems, Inc. | Continuous semi-dense pneumatic conveying system and method |
| CN101823606A (en) * | 2010-04-12 | 2010-09-08 | 杭州震乾科技有限公司 | Blade stirring type pneumatic conveyor for easy caking materials |
| CN102152972A (en) * | 2011-03-24 | 2011-08-17 | 克莱德贝尔格曼华通物料输送有限公司 | Positive pressure pneumatic conveying system and method |
| CN202124332U (en) * | 2011-06-10 | 2012-01-25 | 济南高炉长寿机械设备有限公司 | Efficient rotational-flow pneumatic conveying cabin pump device |
| CN202625363U (en) * | 2012-06-05 | 2012-12-26 | 天津市阿斯米机械设备制造安装工程有限公司 | Purging system for dry ash conveying in power plant |
| CN202935946U (en) * | 2012-11-27 | 2013-05-15 | 西安热工研究院有限公司 | Efficient positive-pressure pneumatic conveying system of pebble coal |
| CN103121588A (en) * | 2013-02-28 | 2013-05-29 | 云南铝业股份有限公司 | Double-pipeline concentrated phase delivery system parallel discharge and blockage device and automatic control method |
| CN203306739U (en) * | 2013-06-20 | 2013-11-27 | 中天钢铁集团有限公司 | Novel coal conveying bin pump with output blockage prevention function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110228710A (en) * | 2019-06-19 | 2019-09-13 | 武汉钢铁有限公司 | The efficient transportation system of dedusting ash and anti-clogging control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103274217A (en) | 2013-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103274217B (en) | The novel defeated coal cone pump of outlet anti-clogging | |
| CN201756356U (en) | Automatic controlled bulk material loading machine | |
| CN201721974U (en) | Micro-positive low pressure continuous pneumatic convey device | |
| CN105773834A (en) | Ceramic raw material independent-grinding centralized preparation technique and device | |
| CN203428536U (en) | Coarse-ash pneumatic conveying system for converter gas dry dedusting | |
| CN213976087U (en) | Boosting type energy-saving anti-blocking pneumatic conveying device | |
| CN103332458B (en) | The thin grey air-transport system of a kind of dry dedusting of converter | |
| CN210951290U (en) | Automatic bed material adding system for circulating fluidized bed boiler hearth | |
| CN203306739U (en) | Novel coal conveying bin pump with output blockage prevention function | |
| CN205288084U (en) | Sweetener in circulating fluidized bed boiler stove | |
| CN110228710A (en) | The efficient transportation system of dedusting ash and anti-clogging control method | |
| CN212504950U (en) | System for gravity dust removal and ash discharge of blast furnace | |
| CN102022311A (en) | Electric energy control method and electric energy control system for dedusting equipment | |
| CN203428455U (en) | Pneumatic fine ash conveying system for converter gas dry dedusting | |
| CN103333986B (en) | Converter coal gas dry dedusting and cinder pneumatic transmission system | |
| CN205442076U (en) | Sludge conveying system | |
| CN210103002U (en) | Environment-friendly fly ash solidification dust suppression device | |
| CN204806377U (en) | System is added to bed material | |
| CN203497777U (en) | Dry ash entrucking device used for coal-fired power plant | |
| CN105823038A (en) | Coal conveying system used for circulating fluidized bed boiler and large-ratio coal slurry mixed burning | |
| CN205602703U (en) | Pneumatolytic dry dust conveying equipment in air input intelligent regulation bottom | |
| CN211732520U (en) | Tailing feeding barrel for filling | |
| CN207986182U (en) | A kind of pebble coal positive pressure pneumatic conveying device | |
| CN209876907U (en) | Fluidized bed boiler bed material adding system | |
| CN204404215U (en) | Utilize the system of adjacent stove negative pressure bug dusting warehousing powder |
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 |