CN104190567A - Active exciting agent atomization device for metal tailing grinding system - Google Patents
Active exciting agent atomization device for metal tailing grinding system Download PDFInfo
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- CN104190567A CN104190567A CN201410409165.4A CN201410409165A CN104190567A CN 104190567 A CN104190567 A CN 104190567A CN 201410409165 A CN201410409165 A CN 201410409165A CN 104190567 A CN104190567 A CN 104190567A
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- liquid
- air inlet
- spray gun
- air
- inner tube
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
- B05B7/0441—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber
- B05B7/045—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber the gas and liquid flows being parallel just upstream the mixing chamber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
- B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
- B05B7/2464—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device a liquid being fed by mechanical pumping from the container to the nozzle
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
Abstract
An active exciting agent atomization device for a metal tailing grinding system comprises a spray gun, an air-liquid mixing nozzle, a liquid supply system and an air supply system, wherein the spray gun is composed of an inner tube and an outer sleeve in an assembly welding mode, an air intake ring cavity is formed between the outer sleeve and the inner tube, one end of the air intake ring cavity is a closed end, the other end of the air intake ring cavity is an open end, the spray gun is installed on a connection pipeline between a vertical mill and a bag type dust collector, the side wall of the position, located outside the connection pipeline, of the outer sleeve is provided with an air inlet, and the end, located outside the connection pipeline, of the inner tube stretches out of the outer sleeve to form a liquid intake end; the air-liquid mixing nozzle is installed at the open end of the spray gun; the liquid supply system is connected with the liquid intake end, and the air supply system is connected with the air inlet. The device can be used for effectively and uniformly atomizing and spraying active exciting agents in the pipeline, thereby well guaranteeing uniform mixing of the active exciting agents and micro powder finished products of raw materials, and guaranteeing that the active exciting agents can be effectively attached to interfaces of particles of the micro powder finished products. The device prevents a hot air environment in the mill from affecting performance of the active exciting agents, thereby reducing volatilization and losses of the active exciting agents. The device can be used for regulating and controlling the additive amount, and therefore different production requirements can bet met.
Description
Technical field
The invention belongs to cement industry and use milling equipment field, relate to a kind of micro mist treatment technology.Espespecially a kind of activity excitant atomising device of working under high density dust atmosphere in vertical roller grinder grinding system of being applicable to.
Background technology
Vertical Mill is to be widely used at present cement, iron and steel, the energy-conservation milling equipment of one of the industries such as electric power.For its micro mist finished product after ensureing vertical mill grinding raw material can have higher activity index, the comprehensive utilization of volume, high added value greatly, the addition manner of controlling activity excitant is a very important link.As everyone knows, can give full play to the potential activity function of material by physical excitation and chemi-excitation.Present stage, the activity of physical excitation material was by form certain thickness material bed on grinding disc of vertical mill, and then grinding roller grinds material under hydraulic system loading force drives.Physical excitation mode to be to significantly improve the lateral reactivity of part type pledge material, and for grindability the poor and poor type pledge material of active effect to only depend on material to excite be inadequate.The activity of present stage chemi-excitation material is by after artificial simple metering, is directly added drop-wise to raw material from entering to grind raw material belt conveyor top through material guiding tube.The deficiency that the addition manner of this kind of activity excitant exists is: metering method is extensive; Easily occur that belt is sticky glutinous; Activity excitant is difficult to mix with raw material; Add owing to being that mill is front, in mill under hot blast environment, activity excitant is easy to volatilization, loss is large, thereby has a strong impact on the adhesion effect of macromolecule and micro mist finished particle interface in activity excitant, and then affects the further performance of material micro mist finished product lateral reactivity.
Therefore, how activity excitant can be mixed with material with addition accurately at suitable interpolation point in automation mode under high temperature and high density dust atmosphere in vertical mill grinding system, thereby effectively ensure the adhesion effect of macromolecule and raw material micro mist finished particle interface in activity excitant, and then significantly improve material micro mist finished product lateral reactivity.These technological difficulties just become the problem that current urgent need solves.
Summary of the invention
It is a kind of under high density dust atmosphere that technical problem to be solved by this invention is to provide, can realize activity excitant automatically, evenly add, and addition is controllable, thereby ensure that activity excitant can effectively be attached on micro mist finished particle interface, and then excite the activating agent for metal tailings grinding system of the lateral reactivity of material to excite atomising device.
The present invention for the technical scheme that solves the technical problem that exists in known technology and adopt is:
A kind of activity excitant atomising device for metal tailings grinding system, it is characterized in that: comprise the spray gun being become with outer tube assembly welding by inner tube, between outer tube and inner tube, form air inlet ring cavity, one end of air inlet ring cavity is blind end, the other end is opening end, spray gun is arranged in the connecting pipe between Vertical Mill and bag filter, its opening end extend in connecting pipe, its blind end is positioned at outside connecting pipe, on sidewall outside outer tube is positioned at connecting pipe, be provided with air inlet, stretch out from outer tube one end that inner tube is positioned at outside connecting pipe, forms liquid feeding end; Comprise gas-liquid mixed nozzle, gas-liquid mixed nozzle is arranged on the opening end of spray gun; Comprise the liquid-supplying system that connects spray gun inner tube liquid feeding end, described liquid-supplying system comprises the feed liquor path of device for storing liquid, connection device for storing liquid and inner tube liquid feeding end and realizes the auxiliary channel of release, on feed liquor path, along the flow direction of liquid, measuring pump, filter and Pressure gauge A are installed in turn, the position near two ends on feed liquor path is equipped with stop valve; Described auxiliary channel is connected and composed by pipeline by overflow valve and check valve, and the two ends of auxiliary channel are communicated with the connecting line between Pressure gauge A and filter on device for storing liquid and primary path respectively; Comprise the air supply system that connects spray gun outer tube air inlet, described air supply system comprises air compressor, connects the main intake channel of the caisson of air compressor, connection caisson and outer tube air inlet, on main intake channel, along the flow direction of gas, fore filter, gas drying apparatus, post-filter and Pressure gauge B is installed successively.
The technical scheme that the present invention can also adopt is:
Described air supply system also comprises additional-air inlet path, on additional-air inlet path, stop valve is installed, the front end pipeline connection of one end of additional-air inlet path and main intake channel, the other end of additional-air inlet path is communicated with the connecting line between Pressure gauge B and post-filter on main intake channel; On connecting line between every two components and parts that are connected on connecting line on the front end pipeline of main intake channel, between caisson and air compressor and on main intake channel, be equipped with stop valve.
In described device for storing liquid, be provided with electric heater unit and agitating device.
On described feed liquor path, fluid flow visor is also installed, fluid flow visor is arranged on the connecting line between filter and Pressure gauge A.
Described gas-liquid mixed nozzle is made up of the catch that is provided with the nozzle head of inner chamber and be arranged in nozzle head, the front end of nozzle head is provided with the spray orifice being uniformly distributed along the circumference, the middle part of described catch is provided with the liquid phase hole being communicated with spray gun inner tube, is laid with the multiple gas phases hole being communicated with air inlet ring cavity in outside, liquid phase hole.
Advantage and beneficial effect that the present invention has are:
This activity excitant atomising device is simple in structure, reasonable in design, by the cooperation of air supply system and liquid-supplying system, can be effectively by activity excitant atomized spray equably in pipeline, thereby ensure preferably to mix uniformly with raw material micro mist finished product, ensure that activity excitant can effectively be attached on micro mist finished particle interface, and then can excite the lateral reactivity of material, make material there is higher activity index, can serve as cement mixture or the concrete mineral admixture of high-quality, it is mixed in cement or concrete in a large number to reduce costs, and the consumption of minimizing to non-renewable resources.Spray gun is arranged on the connecting pipe place between vertical roller grinder air outlet and bag filter by this activity excitant atomising device, in connecting pipe, form the interpolation point of activity excitant, than existing mode of directly adding in mill, avoid the impact of hot blast environment on activity excitant performance in mill, thereby reduced volatilization and the loss of activity excitant.This activity excitant atomising device, by regulating the pressure of activity excitant fluid flow and pressure and gas, can be realized the regulation and control of addition, to meet different need of productions.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the installation site schematic diagram of the present invention in metal tailings grinding system.
In figure: 1, inner tube; 101, liquid feeding end; 2, outer tube; 201, air inlet; 3, air inlet ring cavity; 4, gas-liquid mixed nozzle; 401, nozzle head; 402, catch; 403, liquid phase hole; 404, gas phase hole; 5, liquid-supplying system; 501, device for storing liquid; 502, measuring pump; 503, filter; 504, Pressure gauge A; 505, overflow valve; 506, check valve; 507, electric heater unit; 508, agitating device; 509, fluid flow visor; 6, air supply system; 601, air compressor; 602, caisson; 603, fore filter; 604, gas drying apparatus; 605, post-filter; 606, Pressure gauge B; 607, additional-air inlet path; 1,, Vertical Mill; 2,, bag filter; 3,, connecting pipe.
Detailed description of the invention
Describe in detail for the present invention being done further, be described below in conjunction with the drawings and specific embodiments.Especially, following examples are only explanation of the invention and the present invention is not limited to following examples.
Refer to Fig. 1-3, a kind of activity excitant atomising device for metal tailings grinding system, is made up of following several parts:
Comprise the spray gun being become with outer tube 2 assembly weldings by inner tube 1.Between outer tube and inner tube, form air inlet ring cavity 3, one end of air inlet ring cavity is blind end, and the other end is opening end.Spray gun is arranged on Vertical Mill 1, with bag filter 2, between connecting pipe 3, upper, its opening end extend in connecting pipe, its blind end is positioned at outside connecting pipe.Concrete, the perforate of inserting spray gun is set on the sidewall of the connecting pipe between Vertical Mill and bag filter, at the outside of connecting pipe position of opening welded pipe line flange, the position welded flange plate of close air inlet ring cavity blind end on outer tube, by being connected of flanged plate and pipe flange, spray gun is fixed in connecting pipe.On sidewall outside outer tube is positioned at connecting pipe, be provided with air inlet 201, stretch out from outer tube one end that inner tube is positioned at outside connecting pipe, forms liquid feeding end 101.
Comprise gas-liquid mixed nozzle 4, gas-liquid mixed nozzle is arranged on the opening end of spray gun.Concrete, gas-liquid mixed nozzle connects as one and uses nut check by screw thread and spray gun.
Comprise the liquid-supplying system 5 that connects spray gun inner tube liquid feeding end.Described liquid-supplying system comprises the feed liquor path of device for storing liquid 501, connection device for storing liquid and inner tube liquid feeding end and realizes the auxiliary channel of release.On feed liquor path, along the flow direction of liquid, measuring pump 502, filter 503 and Pressure gauge A504 are installed in turn.The preferred diaphragm metering pump of measuring pump.Position near two ends on feed liquor path is equipped with stop valve.Described auxiliary channel is connected and composed by pipeline by overflow valve 505 and check valve 506, and the two ends of auxiliary channel are communicated with the connecting line between Pressure gauge A and filter on device for storing liquid and feed liquor path respectively.The effect of auxiliary channel is to realize pressure release, in the time that the fluid flow in feed liquor path exceedes setting value, partially liq in feed liquor path flow through overflow valve and check valve in auxiliary channel, be back in device for storing liquid, thereby ensured that the fluid pressure of feed liquor path is no more than setting value and mates with gas pressure.
Comprise the air supply system 6 that connects spray gun outer tube air inlet.Described air supply system comprises air compressor 601, connects the main intake channel of the caisson 602 of air compressor, connection caisson and outer tube air inlet.On main intake channel, along the flow direction of gas, fore filter 603, gas drying apparatus 604, post-filter 605 and Pressure gauge B606 are installed successively, wherein gas drying apparatus can adopt freezing type drier, and its effect is to remove moisture in compressed air.
In said structure, described air supply system also comprises additional-air inlet path 607, on additional-air inlet path, stop valve is installed, the front end pipeline connection of one end of additional-air inlet path and main intake channel, the other end of additional-air inlet path is communicated with the connecting line between Pressure gauge B and post-filter on main intake channel.On connecting line between every two components and parts that are connected on connecting line on the front end pipeline of main intake channel, between caisson and air compressor and on main intake channel, be equipped with stop valve.The effect that additional-air inlet path is set is the stand-by channel as interim unlatching, in the time being arranged on components and parts (comprising above-mentioned fore filter, gas drying apparatus, post-filter) on main intake channel and breaking down, can close main intake channel, open additional-air inlet path simultaneously.Like this, can safeguard or change from the lower components and parts of main intake channel dismounting, also not affect the continuous operation of production simultaneously.
In said structure, in described device for storing liquid, be further provided with electric heater unit 507 and agitating device 508.Electric heater unit can adopt various common electric heating tube structures.Agitating device can form by motor and by motor-driven agitator, and its effect is: the viscosity of activity excitant can be met and be less than 50CST, thereby the equipment that ensured still can normally be worked under colder weather conditions.
In said structure, fluid flow visor 509 is further also installed on described feed liquor path, fluid flow visor is arranged on the connecting line between filter and Pressure gauge A.Fluid flow visor is installed on feed liquor pipeline and can be observed easily at any time the fluid flow on feed liquor pipeline, so just can observe liquid whether mobile smooth and easy, to judge whether gas-liquid mixed nozzle stops up.
In said structure, described gas-liquid mixed nozzle forms by being provided with the nozzle head 401 of inner chamber and the catch 402 being arranged in nozzle head.The front end of nozzle head is provided with the spray orifice being uniformly distributed along the circumference, and the middle part of described catch is provided with the liquid phase hole 403 being communicated with spray gun inner tube, is uniformly distributed along the circumference and is provided with the gas phase hole 404 being communicated with air inlet ring cavity in outside, liquid phase hole.Adopt this nozzle arrangements, flow out from the liquid phase hole at center from the activity excitant liquid of spray gun inner tube input, in the gas phase hole of the compressed air circle distribution of inputting from the air inlet ring cavity of spray gun, spray, then mix at the front end of gas-liquid mixed nozzle, like this, under the effect of gas pressure, activity excitant liquid is sprayed onto in connecting pipe uniformly with vaporific by the spray orifice of gas-liquid mixed nozzle.
Operation principle of the present invention: the connecting pipe place of the interpolation point installation position selection of this device between Vertical Mill air outlet and bag filter.Activating agent excites the liquid-supplying system of atomising device, and flow and the controllable activity excitant liquid (flow set is adjusted in proportion according to inventory, and pressure is generally 0.3-0.5Mpa) of pressure are after filtering provided; Its air supply system provides the pure adjustable compressed air (pressure is generally 0.3-0.5Mpa) of pressure by inner front and rear filter, freezing type drier.Activity excitant liquid enters gas-liquid mixed nozzle by the spray gun inner tube of stretching in pipeline, compressed air enters gas-liquid mixed nozzle by the air inlet ring cavity between spray gun outer tube and inner tube simultaneously, both mix at gas-liquid mixed spray nozzle front end, under the effect of gas pressure, make activity excitant liquid spray with vaporific by the spray orifice of gas-liquid mixed nozzle, enter in connecting pipe, mix uniformly with the raw material micro mist finished product of being carried by gas in connecting pipe.
Claims (5)
1. the activity excitant atomising device for metal tailings grinding system, it is characterized in that: comprise the spray gun being become with outer tube assembly welding by inner tube, between outer tube and inner tube, form air inlet ring cavity, one end of air inlet ring cavity is blind end, the other end is opening end, spray gun is arranged in the connecting pipe between Vertical Mill and bag filter, its opening end extend in connecting pipe, its blind end is positioned at outside connecting pipe, on sidewall outside outer tube is positioned at connecting pipe, be provided with air inlet, stretch out from outer tube one end that inner tube is positioned at outside connecting pipe, form liquid feeding end, comprise gas-liquid mixed nozzle, gas-liquid mixed nozzle is arranged on the opening end of spray gun, comprise the liquid-supplying system that connects spray gun inner tube liquid feeding end, described liquid-supplying system comprises the feed liquor path of device for storing liquid, connection device for storing liquid and inner tube liquid feeding end and realizes the auxiliary channel of release, on feed liquor path, along the flow direction of liquid, measuring pump, filter and Pressure gauge A are installed in turn, the position near two ends on feed liquor path is equipped with stop valve, described auxiliary channel is connected and composed by pipeline by overflow valve and check valve, and the two ends of auxiliary channel are communicated with the connecting line between Pressure gauge A and filter on device for storing liquid and feed liquor path respectively, comprise the air supply system that connects spray gun outer tube air inlet, described air supply system comprises air compressor, connects the main intake channel of the caisson of air compressor, connection caisson and outer tube air inlet, on main intake channel, along the flow direction of gas, fore filter, gas drying apparatus, post-filter and Pressure gauge B is installed successively.
2. the activity excitant atomising device for metal tailings grinding system according to claim 1, it is characterized in that: described air supply system also comprises additional-air inlet path, on additional-air inlet path, stop valve is installed, the front end pipeline connection of one end of additional-air inlet path and main intake channel, the other end of additional-air inlet path is communicated with the connecting line between Pressure gauge B and post-filter on main intake channel; On connecting line between every two components and parts that are connected on connecting line on the front end pipeline of main intake channel, between caisson and air compressor and on main intake channel, be equipped with stop valve.
3. the activity excitant atomising device for metal tailings grinding system according to claim 1, is characterized in that: in described device for storing liquid, be provided with electric heater unit and agitating device.
4. the activity excitant atomising device for metal tailings grinding system according to claim 1, it is characterized in that: on described feed liquor path, fluid flow visor is also installed, fluid flow visor is arranged on the connecting line between filter and Pressure gauge A.
5. the activity excitant atomising device for metal tailings grinding system according to claim 1, it is characterized in that: described gas-liquid mixed nozzle is made up of the catch that is provided with the nozzle head of inner chamber and be arranged in nozzle head, the front end of nozzle head is provided with the spray orifice being uniformly distributed along the circumference, the middle part of described catch is provided with the liquid phase hole being communicated with spray gun inner tube, is laid with the multiple gas phases hole being communicated with air inlet ring cavity in outside, liquid phase hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410409165.4A CN104190567B (en) | 2014-08-19 | 2014-08-19 | A kind of activity excitant atomising device for metal tailings grinding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410409165.4A CN104190567B (en) | 2014-08-19 | 2014-08-19 | A kind of activity excitant atomising device for metal tailings grinding system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104190567A true CN104190567A (en) | 2014-12-10 |
| CN104190567B CN104190567B (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410409165.4A Active CN104190567B (en) | 2014-08-19 | 2014-08-19 | A kind of activity excitant atomising device for metal tailings grinding system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105331771A (en) * | 2015-11-23 | 2016-02-17 | 中冶焦耐工程技术有限公司 | Passivator adding device for producing passivated lime and using method of passivator adding device |
| CN110327843A (en) * | 2019-08-05 | 2019-10-15 | 天津水泥工业设计研究院有限公司 | A kind of granulation disc, pelletizer and granulation aid preparation system |
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| CN204034904U (en) * | 2014-08-19 | 2014-12-24 | 中材（天津）粉体技术装备有限公司 | A kind of activity excitant atomising device for metal tailings grinding system |
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| US4561380A (en) * | 1984-06-21 | 1985-12-31 | Nordson Corporation | Method and apparatus for powder coating a moving web |
| GB2267850A (en) * | 1992-06-19 | 1993-12-22 | Graco Inc | Spraying system having control and pressure safety means |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105331771A (en) * | 2015-11-23 | 2016-02-17 | 中冶焦耐工程技术有限公司 | Passivator adding device for producing passivated lime and using method of passivator adding device |
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| CN110327843A (en) * | 2019-08-05 | 2019-10-15 | 天津水泥工业设计研究院有限公司 | A kind of granulation disc, pelletizer and granulation aid preparation system |
| CN110327843B (en) * | 2019-08-05 | 2024-06-07 | 天津水泥工业设计研究院有限公司 | Granulation dish, granulator and granulation auxiliary agent preparation system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104190567B (en) | 2016-12-07 |
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Effective date of registration: 20190325 Address after: Tianjin District of Beichen city in the 300400 major North Road No. 1 Co-patentee after: Tianjin Cement Industry Design & Research Institute Co., Ltd. Patentee after: Sinoma (Tianjin) powder technology equipment Co., Ltd. Address before: Tianjin District of Beichen city in the 300400 major North Road No. 1 Co-patentee before: Sinoma Technology & Equipment Group Co., Ltd. Patentee before: Sinoma (Tianjin) powder technology equipment Co., Ltd. |
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