CN202808861U - Powder injecting and automatic-fluidizing device - Google Patents
Powder injecting and automatic-fluidizing device Download PDFInfo
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- CN202808861U CN202808861U CN 201220360726 CN201220360726U CN202808861U CN 202808861 U CN202808861 U CN 202808861U CN 201220360726 CN201220360726 CN 201220360726 CN 201220360726 U CN201220360726 U CN 201220360726U CN 202808861 U CN202808861 U CN 202808861U
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Abstract
The utility model discloses a powder injecting and automatic-fluidizing device. The powder injecting and automatic-fluidizing device comprises an overhead bunker, an injecting tank and a powder conveying pipe which are connected from top to bottom in sequence; a plurality of weighing sensors are arranged on the injecting tank; a fluidizing bed is formed at the bottom part of the injecting tank; a nitrogen input pipe is connected to the upper end of the injecting tank, and a plurality of fluidizing pipes for inputting nitrogen are respectively communicated to the side part of the lower end of the injecting tank; fluidizing valves are respectively arranged on the fluidizing pipes; one end of the powder conveying pipe is provided with a conveying valve and is connected to a nitrogen source, and the other end of the powder conveying pipe is connected to a powder injecting gun. By adopting the powder injecting and automatic-fluidizing device, the accidents due to blockage and idle injecting can be prevented, and the powder for treating molten iron is able to be fed into the molten iron in order to prevent the component from overflowing; and moreover, the workload of maintaining workers can be reduced, the running rate of equipment can be improved, and the pollution due to external injection of powders to the environment can be avoided during fault removing, such as iron oxide powder and calcium oxide.
Description
Technical field
The utility model relates to fluidizing device, more particularly, relates to the automatic fluidizer of a kind of blowing powder.
Background technology
Molten iron need carry out dephosphorization, desiliconization, desulfurization processing before being blended into converter, as shown in Figure 1, pulvis is pressed into high hopper 10 by the nitrogen as delivering gas, the amount of dusting set(ting)value according to the heat requirement, start weighing, control valve 11a opens, pulvis is discharged into weighing cabin 12 by high hopper 10, weigh by the LOAD CELLS 16 of being located on the weighing cabin 12, when the weight of pulvis equals set(ting)value weight, weighing is finished control valve 11a and is closed, and control valve 11b opens pulvis and is discharged into winding-up tank 13 by weighing cabin 12 then.The beginning of dusting, powder monitor descends from standby position and arrives the winding-up position and enter the molten iron of hot metal ladle transfer valve 14 unlatchings, the certain pressure of winding-up tank 13 interior foundation, speed-regulating valve 15 is opened according to the injecting velocity that heat requires, and transfer valve 15 is opened pulvis and entered molten iron with nitrogen through powder monitor.When the end of dusting when equalling zero of weighing of winding-up tank 13 interior current residual pulvis, powder monitor rises to standby position.
In order to improve pulvis at the transportation performance of winding-up tank 13, usually at winding-up tank 13 tank body lower parts fluidized-bed 17 is set, and is connected with several fluidisation pipes 18, and by 19 controls of fluidisation valve, input nitrogen carries out agitaion, to improve pulvis at the transportation performance of winding-up tank 13, optimizes the fluid effect of pulvis.
The defective of prior art: be at random owing to what stop up 1), can't judge and catch generation and the disappearance moment of plugging fault, thereby realize automatically opening, stopping of fluidisation operation.2) prior art usually adopts and is interrupted the mode of supplying gas, and several great wheel streams that namely are positioned at same circle are opened; But during fluidisation, the unlatching of fluidisation valve, the pressure reduction that makes in the winding-up tank 13 that enters of fluidisation nitrogen diminishes, and the nitrogen that fluidisation is blown into is equivalent to a pectinid door, will weaken the transportation performance of winding-up tank 13.3) prior art does not solve empty spray fault, when overcast and rainy pulvis humidity increases, the pulvis knot is on the bulkhead of winding-up tank 13, pulvis can not be forced out winding-up tank 13, can produce and only have flow and without the sky spray phenomenon of powder amount, and empty spray can't detect discovery automatically, will affect the processing composition of molten iron, and is totally unfavorable to the direct motion of producing.
The utility model content
For the above-mentioned shortcoming that exists in the prior art, the purpose of this utility model provides the automatic fluidizer of a kind of blowing powder, can prevent from stopping up the generation with empty spray accident, guarantees that the pulvis of processing molten iron enters molten iron, prevents that composition is offscale.
For achieving the above object, the utility model adopts following technical scheme:
The automatic fluidizer of this blowing powder comprises high hopper, winding-up tank and the pulvis transfer lime that links to each other successively from top to bottom, the winding-up tank is provided with several LOAD CELLS, the winding-up pot bottom is provided with fluidized-bed, and winding-up tank upper end also is connected with the nitrogen input tube, lower end side section is connected with respectively the fluidisation pipe of several logical nitrogen, is respectively equipped with the fluidisation valve on the fluidisation pipe; Pulvis transfer lime one end is provided with transfer valve and is connected to source nitrogen, and the other end is connected to powder monitor.
Described high hopper links to each other by the rubber hose that is provided with control valve between the tank with winding-up, and is continuous by the rubber hose that is provided with speed-regulating valve between winding-up tank and the pulvis transfer lime.
Described nitrogen input tube is provided with transfer valve.
The quantity of described LOAD CELLS is three.
In technique scheme, the automatic fluidizer of blowing powder of the present utility model comprises high hopper, winding-up tank and the pulvis transfer lime that links to each other successively from top to bottom, the winding-up tank is provided with several LOAD CELLS, the winding-up pot bottom is provided with fluidized-bed, and winding-up tank upper end also is connected with the nitrogen input tube, lower end side section is connected with respectively the fluidisation pipe of several logical nitrogen, is respectively equipped with the fluidisation valve on the fluidisation pipe; Pulvis transfer lime one end is provided with transfer valve and is connected to source nitrogen, and the other end is connected to powder monitor.Can prevent from stopping up generation with empty spray accident by this fluidizer, guarantee that the pulvis of processing molten iron enters molten iron, prevent that composition is offscale.In addition, can also reduce serviceman's workload, improve the operation factor of equipment, avoid in the troubleshooting process, the outer spray of the pulvis such as brown iron oxide, calcium oxide and cause pollution to environment.
Description of drawings
Fig. 1 is the structural representation of the fluidizer of prior art;
Fig. 2 is the structural representation of fluidizer of the present utility model.
Embodiment
Further specify the technical solution of the utility model below in conjunction with drawings and Examples.
Please in conjunction with shown in Figure 2, the automatic fluidizer of blowing powder of the present utility model comprises the high hopper 20 that links to each other successively from top to bottom, winding-up tank 21 and the pulvis transfer lime 22 of cone, winding-up tank 21 is provided with several LOAD CELLS 23, be generally equally distributed three, winding-up tank 21 bottoms are provided with fluidized-bed 24, and winding-up tank 21 upper ends also are connected with nitrogen input tube 25, nitrogen input tube 25 is provided with transfer valve 26, winding-up tank 21 lower end side sections are connected with respectively the fluidisation pipe 27 of three logical nitrogen, are respectively equipped with fluidisation valve 28 on the fluidisation pipe 27; Pulvis transfer lime 22 1 ends are provided with transfer valve 29 and are connected to source nitrogen, and the other end is connected to powder monitor.Described high hopper 20 links to each other by the rubber hose 31 that is provided with control valve 30 between the tank 21 with winding-up, and is continuous by the rubber hose 31 that is provided with speed-regulating valve 32 between winding-up tank 21 and the pulvis transfer lime 22.
Fluidizer of the present utility model can adopt PLC automatically to control, and concrete principle is as follows:
The amount of dusting set(ting)value according to heat requires starts weighing, and control valve 30 is opened, and pulvis is discharged into winding-up tank 21 by high hopper 20 and directly weighs in winding-up tank 21, and weighing is finished when the weight of pulvis equals set(ting)value weight, and control valve 30 is closed.The beginning of dusting, powder monitor descend from standby position and arrive the winding-up position and enter the molten iron of hot metal ladle, and nitrogen valve is opened, the certain pressure of winding-up tank 21 interior foundation, speed-regulating valve 32 is opened according to the injecting velocity that heat requires, and transfer valve 29 is opened, and pulvis enters molten iron with nitrogen through powder monitor.Since stop up or empty spray be at random, the key of dealing with problems is to judge and catch to stop up or the generation of empty spray fault and disappearing constantly, thereby realizes automatically opening, stopping of anti-clogging plug operation.When fluidisation, fluidisation valve 28 is opened automatically, during owing to fluidisation, on the one hand, the pressure reduction in the winding-up tank 21 is diminished; On the other hand, the nitrogen that fluidisation blows out is equivalent to a pectinid door, with pipe plugging.Therefore the fluidisation operation can not be carried out in whole winding-up process continuously.So can judge by the following method and catch and stop up or empty generation and the disappearance moment of spraying fault: the beginning of dusting, winding-up tank 21 interior remaining pulvis weight can be obtained respectively from two kinds of methods, first method, the Startup time PLC that dusts begins timing, usage quantity=injecting velocity * PLC the timing time that dusts, the pulvis weight of winding-up tank 21 interior current residual=(the set(ting)value weight-usage quantity of dusting) PZ; Second method, the value of the weighing CZ that the pulvis weight=LOAD CELLS 23 of the current residual of winding-up tank 21 weighs up.When PZ-arranges the deviate Δ〉during CZ, illustrate that pulvis has to stop up or empty spray phenomenon that fluidisation valve 28 is automatically opened and started the fluidisation operation in winding-up tank 21, PLC stops the timing of dusting; When PZ=CZ, illustrate that pulvis is interior unimpeded at winding-up tank 21, fluidisation valve 28 autoshutdowns stop the fluidisation operation, and PLC recovers to dust timing.It is in order to prevent the operation of frequent starting fluidisation that the deviate Δ is set.The end of dusting when equalling zero of weighing of current residual pulvis in winding-up tank 21CP, powder monitor rises to standby position.
Those of ordinary skill in the art will be appreciated that, above embodiment illustrates the utility model, and be not to be used as restriction of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.
Claims (4)
1. automatic fluidizer of blowing powder is characterized in that:
Comprise the high hopper, winding-up tank and the pulvis transfer lime that link to each other successively from top to bottom, the winding-up tank is provided with several LOAD CELLS, the winding-up pot bottom is provided with fluidized-bed, and winding-up tank upper end also is connected with the nitrogen input tube, lower end side section is connected with respectively the fluidisation pipe of several logical nitrogen, is respectively equipped with the fluidisation valve on the fluidisation pipe; Pulvis transfer lime one end is provided with transfer valve and is connected to source nitrogen, and the other end is connected to powder monitor.
2. the automatic fluidizer of blowing powder as claimed in claim 1 is characterized in that:
Described high hopper links to each other by the rubber hose that is provided with control valve between the tank with winding-up, and is continuous by the rubber hose that is provided with speed-regulating valve between winding-up tank and the pulvis transfer lime.
3. the automatic fluidizer of blowing powder as claimed in claim 1 is characterized in that:
Described nitrogen input tube is provided with transfer valve.
4. the automatic fluidizer of blowing powder as claimed in claim 1 is characterized in that:
The quantity of described LOAD CELLS is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220360726 CN202808861U (en) | 2012-07-24 | 2012-07-24 | Powder injecting and automatic-fluidizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220360726 CN202808861U (en) | 2012-07-24 | 2012-07-24 | Powder injecting and automatic-fluidizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202808861U true CN202808861U (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220360726 Expired - Fee Related CN202808861U (en) | 2012-07-24 | 2012-07-24 | Powder injecting and automatic-fluidizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202808861U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480251A (en) * | 2014-12-05 | 2015-04-01 | 中冶京诚工程技术有限公司 | Pretreatment device for simultaneously desulfurizing, desiliconizing and dephosphorizing molten iron, and application and smelting method thereof |
| CN110095495A (en) * | 2019-04-11 | 2019-08-06 | 山东科技大学 | A kind of device and measurement method measuring the minimum ignition temperature of aluminium powder dust clouds |
-
2012
- 2012-07-24 CN CN 201220360726 patent/CN202808861U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480251A (en) * | 2014-12-05 | 2015-04-01 | 中冶京诚工程技术有限公司 | Pretreatment device for simultaneously desulfurizing, desiliconizing and dephosphorizing molten iron, and application and smelting method thereof |
| CN110095495A (en) * | 2019-04-11 | 2019-08-06 | 山东科技大学 | A kind of device and measurement method measuring the minimum ignition temperature of aluminium powder dust clouds |
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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: 20130320 Termination date: 20160724 |
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| CF01 | Termination of patent right due to non-payment of annual fee |