CN208383827U - It is a kind of can dynamic collection metal vapors tube furnace experimental rig - Google Patents
It is a kind of can dynamic collection metal vapors tube furnace experimental rig Download PDFInfo
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- CN208383827U CN208383827U CN201821180919.3U CN201821180919U CN208383827U CN 208383827 U CN208383827 U CN 208383827U CN 201821180919 U CN201821180919 U CN 201821180919U CN 208383827 U CN208383827 U CN 208383827U
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to it is a kind of can dynamic collection metal vapors tube furnace experimental rig, belong to chemical industry technical field of test equipment.It is described can the tube furnace experimental rig of dynamic collection metal vapors include horizontal tube furnace system, metal vapors collection system, air supply system and controller；Horizontal tube furnace system includes furnace body, boiler tube, reaction vessel, baffle and telescopic device, reaction vessel is placed in boiler tube, boiler tube is located in furnace body, the side wall of furnace body is equipped with furnace body slot, position corresponding with furnace body slot is equipped with boiler tube slot on boiler tube, baffle is sequentially inserted into furnace body slot and boiler tube slot, and is connected with telescopic device；Metal vapors collection system includes multiple sampling pipes, three-way magnetic valve and aspiration pump, and one end connection of air supply system and boiler tube, when collecting metal vapors, sampling pipe is inserted into the other end of boiler tube in turn.The experimental rig, it is higher to the rate of recovery of metal, reach 90% or more, is able to achieve the dynamic collection to metal vapors.
Description
Technical field
The utility model relates to chemical industry technical field of test equipment, in particular to it is a kind of can dynamic collection metal vapors pipe
Formula furnace experimental rig.
Background technique
The solid fuels such as coal, rubbish and biomass usually contain the half volatiles metallic element such as Pb, Cd, Zn, Cu, Na, K.
Under the hot conditions of burning, gasification or pyrolysis, these metallic elements, which partly or entirely volatilize, forms metal vapors, then with cigarette
Gas leaves burner hearth, is then passed through after heat exchanger and condenses as smoke temperature reduces, is easy to be enriched in Submicron Particles even
In superfine particulate matter.These fine particles are difficult to efficiently be trapped by cleaner, and heavy metal element therein is particulate matter toxicity
Main source, alkali metal element be form particulate matter one of main matrix, seriously endanger human health.For quasi- eastern coal
It is highly concentrated in high-temperature flue gas for the high solid fuel of alkali metal contents such as (Na content is high) and draft biolobic material (K content is high)
The alkali metal vapour of degree also results in the generation of the problems such as heat exchanger dust stratification, high temperature corrosion and ash erosion in flue, seriously
Interfere boiler operatiopn.Grasp solid fuel ignition, gasification, half volatile metal in pyrolytic process boiling characteristics be to reduce by half
The first step of volatile metal harm, is the important research direction of numerous researchers.
Tube furnace is research solid fuel ignition, gasification, pyrolysis and widely used reactor, with easy to operate, work
The controllable advantage of condition.In the tube furnace pilot system of forefathers' design, the absorbing liquid being placed on outside tube furnace or quartz are generallyd use
Fibrous filter membrane collection drains into the metal fine particle condensed in the tail gas outside bringing-up section.The disadvantage is that metal vapors is easy
Cold surface condensation outside bringing-up section, so that the position of absorbing liquid or filter membrane can not be reached；In addition the metallic particles condensed in flue gas
Easily adhere to all pipelines flowed through other than bringing-up section or wall of a container face, including boiler tube wall surface, boiler tube and suction outside bringing-up section
Receive bottle/filter membrane device connection inside pipe wall, absorption bottle/filter membrane device entrance inner wall.Therefore, boiler tube collects the gold evaporated outside
It when category, needs to clean the discharge end unheated zone surface of boiler tube, and along the wall surface of Cheng Suoyou container and pipeline, could obtain
The theoretically higher rate of recovery.This sampling operation is very cumbersome, and the cleaning fluid volume generated is big, is unfavorable for storing, to real
It tests and brings big inconvenience.In addition, the pipeline sampled outside boiler tube is usually longer, and gas flow rate is low in tube furnace, flow is small, because
This, the metal that a certain moment is collected into may be the metal that can be volatilized before several seconds or even tens of seconds, so that dynamic be caused to ring
Difference is answered, sampling has significant lag.Separately there are individual researchs to collect half volatilization using the water cooling cold finger pipe for protruding into furnace high-temperature area
Property metal vapors.Its principle is by condensation after metal vapors is contacted with water cooling cold finger surface by cold finger surface collection,
The disadvantage is that the cooling water that metal vapors can not cause the rate of recovery low, while need to flow by total condensation, test operation item
Part is complicated.All in all, existing tube furnace experimental rig is not well positioned to meet half volatile metal vapors dynamic sampling
It is required that.
Utility model content
In order to solve the problems, such as that existing tube furnace experimental provision is low to the rate of recovery of metal vapors, the utility model is provided
It is a kind of can dynamic collection metal vapors tube furnace experimental rig, it is described can the tube furnace of dynamic collection metal vapors test dress
It sets including horizontal tube furnace system, metal vapors collection system, air supply system and controller；
Horizontal tube furnace system includes furnace body, boiler tube, reaction vessel, baffle and telescopic device, and reaction vessel is placed in
In boiler tube, boiler tube is located in furnace body and furnace body is stretched out at the both ends of boiler tube, and the side wall of furnace body is equipped with furnace body slot, on boiler tube with furnace body
The corresponding position of slot is equipped with boiler tube slot, and baffle is sequentially inserted into furnace body slot and boiler tube slot, and is connected with telescopic device,
Telescopic device can drive baffle to be inserted into boiler tube by boiler tube slot, or baffle is driven to be retracted into boiler tube slot out of boiler tube
It is interior；
Metal vapors collection system includes multiple sampling pipes, three-way magnetic valve and aspiration pump, and each sampling pipe includes cold
Solidifying portion and filter house, condensation part include inner barrel and outer barrel, and outer tube, and the end of inner cylinder and the end of outer cylinder pass through outer sleeve
Circular ring plate connection with holes, filter house include hollow plug and cartridge filter, and hollow plug is inserted into the inner cylinder of condensation part one end, and hollow
Part in plug insertion inner cylinder is cased with cartridge filter, and for collecting metal vapors, a port of three-way magnetic valve passes through sampling pipe
Two sampling pipes are distinguished in the connection of the pumping end of pipeline and aspiration pump, other two port, other two described port passes through respectively
Pipeline is connect with the hollow plug of described two sampling pipes；
The connection of one end of air supply system and boiler tube, when collecting metal vapors, air supply system is boiler tube gas supply, is evacuated pumping
The other end of boiler tube, the other end insertion of boiler tube are inserted into gas, the condensation part for two sampling pipes connecting with three-way magnetic valve in turn
After one of them sampling pipe connecting with three-way magnetic valve, the condensation part of reaction vessel and insertion boiler tube is located at boiler tube slot
Two sides, baffle is located in boiler tube slot at this time, the end that the sampling pipe in controller control insertion boiler tube is connect with three-way magnetic valve
Mouth is opened, and is controlled the port that aspiration pump is connect with three-way magnetic valve simultaneously and opened, and the sucking rate of aspiration pump is greater than gas supply and is
The air demand of system makes the condensation part in boiler tube and in insertion boiler tube be in negative pressure state, the air annulus with holes by condensation part
Piece enters in boiler tube, and the gas that the air and air supply system provide cools down the metal vapors in boiler tube, metal vapors
Wall surface of the adhering metal particle formed to the cold in condensation part inner cylinder and outside wall surface filtering by cartridge filter, when described wherein one
After a sampling pipe connecting with three-way magnetic valve is collected, controller controls telescopic device and baffle is driven to insert by boiler tube slot
Enter in boiler tube, while air supply system stops gas supply, the sampling pipe in boiler tube is taken out, another is connect with three-way magnetic valve
Sampling pipe is inserted into the other end of boiler tube, and controller controls the port that the sampling pipe in insertion boiler tube is connect with three-way magnetic valve first
It opens, then controls telescopic device again and baffle is driven to be retracted into boiler tube slot out of boiler tube, while air supply system supplies, it is another
A sampling pipe connecting with three-way magnetic valve starts to collect metal vapors, the complete metal of collection that will be connect with three-way magnetic valve
The sampling pipe of steam is dismantled, and the sampling pipe for not collecting metal vapors also is connect with three-way magnetic valve, each and three-way magnetic valve
The mode that the sampling pipe of connection collects metal vapors is identical.
The air supply system includes steel cylinder, pressure reducing valve, mass flow controller, surge tank and intake solenoid valve；
Gas, a port connection of steel cylinder and pressure reducing valve, another port of pressure reducing valve and quality are stored in steel cylinder
Flow controller connection, mass flow controller are connect with surge tank, a port connection of surge tank and intake solenoid valve, into
Another port of pneumoelectric magnet valve is connect with the boiler tube, and the controller can control intake solenoid valve opening, makes the steel
Gas in bottle is passed through to the boiler tube.
The telescopic device includes servo motor, cam and connecting rod, and cam is connected with one end of connecting rod, the other end of connecting rod
It is connected with the baffle, servo motor is connected with cam, and the controller can control servo motor band moving cam and rotate, and passes through company
Bar drives the baffle to be inserted into the boiler tube, or is retracted into the boiler tube slot out of described boiler tube.
The cross sectional shape of the furnace interior cavity is square, and the boiler tube is located at the intracorporal partial cross section shape of the furnace
Shape is square, and the boiler tube stretches out the portion cross-sectional shape outside the furnace body for circle.
The metal vapors collection system further includes drexel bottle, and one of the inlet end of drexel bottle and the three-way magnetic valve
Port connection, outlet side is connect with the pumping end of the aspiration pump.
The metal vapors collection system further includes silica dehydrator bottle, the inlet end of silica dehydrator bottle and the drexel bottle
Outlet side connection, the outlet side of silica dehydrator bottle is connect with the pumping end of the aspiration pump.
The hollow plug is variable diameter hollow glass plug, and the cartridge filter is the cartridge filter made of quartz glass fibre,
The cartridge filter covers the reduced diameter portion in the hollow plug, and the hollow plug is equipped with escape pipe far from the part of the cartridge filter,
Escape pipe is connect with a port of the three-way magnetic valve.
The material of the baffle is quartz glass, corundum, zirconium oxide or high temperature resistant stainless steel.
The width of the boiler tube slot is 0.5 ~ 1mm bigger than the thickness of the baffle.
The aspiration pump is diaphragm pump.
Experimental rig in the utility model, it is higher to the rate of recovery of metal, 90% or more can be reached, may be implemented to gold
Belong to the dynamic collection of steam；The apparatus structure is simple, and operating process is convenient, realizes the ingenious of negative pressure sampling and cooling integration
Design, solving existing experimental rig, structure is complicated, the low problem of the rate of recovery；It can be to the metal vapors generated in boiler tube
Real-time collecting is carried out, solves the problems, such as sampling lag existing for existing experimental rig.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 be the utility model can dynamic collection metal vapors tube furnace experimental rig structural schematic diagram；
Fig. 2 is the structural schematic diagram of the sampling pipe of the utility model.
In figure:
1 furnace body, 2 boiler tubes, 3 reaction vessels, 4 baffles, 5 sampling pipes, 6 three-way magnetic valves, 7 aspiration pumps, 8 inner cylinders, outside 9
Cylinder, 10 circular ring plates, 11 hollow plugs, 12 cartridge filters, 13 steel cylinders, 14 pressure reducing valves, 15 mass flow controllers, 16 surge tanks, 17 into
Pneumoelectric magnet valve, 18 controllers, 19 cams, 20 connecting rods, 21 escape pipes, 22 drexel bottles.
Specific embodiment
The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows composition related with the utility model.
In order to solve the problems, such as that existing tube furnace experimental provision is low to the rate of recovery of metal vapors, such as Fig. 1 and Fig. 2 institute
Show, the utility model provide it is a kind of can dynamic collection metal vapors tube furnace experimental rig, this can dynamic collection metal steam
The tube furnace experimental rig of gas includes horizontal tube furnace system, metal vapors collection system, air supply system and controller；
Horizontal tube furnace system includes furnace body 1, boiler tube 2, reaction vessel 3, baffle 4 and telescopic device, reaction vessel 3
It is placed in boiler tube 2, boiler tube 2 is located in furnace body 1 and furnace body 1 is stretched out at the both ends of boiler tube 2, and reactant is placed on reaction vessel 3
In, furnace body 1 is heated by electric furnace, reactant is made to be transformed into metal vapors, the side wall of furnace body 1 is equipped with furnace body slot, furnace
Position corresponding with furnace body slot is equipped with boiler tube slot on pipe 2, and baffle 4 is sequentially inserted into furnace body slot and boiler tube slot, stretches
Device can drive baffle 4 to be inserted into boiler tube 2 by boiler tube slot, or baffle 4 is driven to be retracted into boiler tube slot out of boiler tube 2
It is interior, it is preferable that telescopic device drives baffle 4 to be retracted into the end face of baffle 4 and the inner wall of boiler tube 2 out of boiler tube 2 on same surface；
Metal vapors collection system includes multiple sampling pipes 5, three-way magnetic valve 6 and aspiration pump 7, and each sampling pipe 5 wraps
Include condensation part and filter house, condensation part includes inner cylinder 8 and outer cylinder 9,9 sets of outer cylinder outside inner cylinder 8, and the end of inner cylinder 8 and outer cylinder 9
End connected by circular ring plate 10 with holes, filter house includes hollow plug 11 and cartridge filter 12, and hollow plug 11 is inserted into condensation part
In the inner cylinder 8 of one end, and the part that hollow plug 11 is inserted into inner cylinder 8 is cased with cartridge filter 12, makes between hollow plug 11 and inner cylinder 8 not
There are gaps, form sealing, and sampling pipe 5 passes through pipeline and pumping for collecting metal vapors, a port of three-way magnetic valve 6
The pumping end connection of pump 7, other two port are separately connected two sampling pipes 5, other two port difference of three-way magnetic valve 6
It is connect by pipeline with the hollow plug 11 of two sampling pipes 5；
Air supply system is connect with one end of boiler tube 2, and when collecting metal vapors, air supply system is the gas supply of boiler tube 2, aspiration pump
The other end of boiler tube 2 is inserted into 7 pumpings, the condensation part for two sampling pipes 5 connecting with three-way magnetic valve 6 in turn, boiler tube 2 it is another
After end is inserted in one of the sampling pipe 5 connecting with three-way magnetic valve 6, the condensation part of reaction vessel 3 and insertion boiler tube 2 is located at
The two sides of boiler tube slot, baffle 4 is located in boiler tube slot at this time, sampling pipe 5 and threeway in the control insertion boiler tube 2 of controller 18
The port that solenoid valve 6 connects is opened, and is controlled the port that aspiration pump 7 is connect with three-way magnetic valve 6 simultaneously and opened, aspiration pump 7
Sucking rate be greater than the air demand of air supply system, so that the condensation part in boiler tube 2 and in insertion boiler tube 2 is in negative pressure state, the examination
Air outside experiment device is entered in boiler tube 2 by condensation part circular ring plate 10 with holes, the gas pair that air and air supply system provide
Metal vapors in boiler tube 2 is cooled down, the adhering metal particle that metal vapors is formed to the cold condensation part inner cylinder 8 wall surface with
And filtered by the outside wall surface of cartridge filter 12, after one of them described sampling pipe 5 connecting with three-way magnetic valve 6 is collected,
Controller 18 controls telescopic device and baffle 4 is driven to be inserted into boiler tube 2 by boiler tube slot, while air supply system stops gas supply, will
Reaction vessel 3 is isolated, and then manually takes out the sampling pipe 5 in boiler tube 2, another is adopted with what three-way magnetic valve 6 was connect
Sample pipe 5 is inserted into the other end of boiler tube 2, and the sampling pipe 5 that controller 18 is controlled first in insertion boiler tube 2 is connect with three-way magnetic valve 6
Port open, start to be evacuated, then control again telescopic device drive baffle 4 be retracted into out of boiler tube 2 in boiler tube slot, simultaneously
Air supply system gas supply, another sampling pipe 5 connecting with three-way magnetic valve 6 starts to collect metal vapors at this time, and metal vapors is met
The metallic particles of cold formation can be adhered to the wall surface of the condensation part inner cylinder 8 of the sampling pipe 5, and by the outside wall surface mistake of cartridge filter 12
Filter；
It, will be with three-way magnetic valve when another described sampling pipe 5 connecting with three-way magnetic valve 6 collects metal vapors
The sampling pipe 5 for having collected metal vapors of 6 connections is dismantled, and will not collect the sampling pipe 5 and threeway electromagnetism of metal vapors also
Valve 6 connects, will be with threeway electromagnetism when another described sampling pipe 5 connecting with three-way magnetic valve 6 has collected metal vapors
The sampling pipe 5 for not collecting metal vapors that valve 6 connects is inserted into boiler tube 2, is collected to metal vapors, while again will be with threeway
The sampling pipe 5 for having collected metal vapors that solenoid valve 6 connects is dismantled, and is installed and new do not collected adopting for metal vapors also
Collector 5, the mode that each sampling pipe 5 collects metal vapors is identical, is not repeated to describe herein.
Experimental rig in the utility model is the gas supply of boiler tube 2 by air supply system, while drawing furnace by aspiration pump 7
Gas in pipe 2, aspiration pump 7 can choose diaphragm pump, and the gas flow in the boiler tube 2 for extracting aspiration pump 7 is greater than gas supply
System is supplied to the gas flow in boiler tube 2, makes to form negative pressure in boiler tube 2, therefore air can be made to pass through the with holes of condensation part
Circular ring plate 10 enters in boiler tube 2, realizes by the gas of air supply system offer and from the air that the external world enters to metal steam
The cooling of gas, meanwhile, under the action of aspiration pump 7, so that the metallic particles a part formed is adhered to the wall surface of inner cylinder 8, separately
A part is deposited on the outside wall surface of cartridge filter 12, prevents metal vapors from leaking；It meanwhile including multiple sampling pipes in the utility model
5, after a sampling pipe 5 is collected, reaction vessel 3 is isolated by baffle 4, replaces another sampling pipe 5, then
So that baffle 4 is retracted initial position again, then start again at collection process, can dynamic collection metal vapors, can not will cause
State difference in response；5 structure of sampling pipe in the utility model is simple, after having collected metal vapors, so that carrying out clearly to sampling pipe 5
The process washed is more convenient, only need to clean inner cylinder 8 wall surface and cartridge filter 12 outside wall surface can by the metal recovery of collection,
So that metal recovery process is more convenient；Device in the utility model can also carry out the metal vapors generated under different temperatures
It is continuous to collect, for example, collecting metal vapors using a sampling pipe 5 in a certain temperature range, in another temperature range, use
Another sampling pipe 5 collects metal vapors, can be respectively toward to two sampling pipes 5 and be cleaned, be learnt in the two humidity provinces
Between under, the volatile quantity and rate of volatilization of metal, be conducive to study metal boiling characteristics, wherein can be according to the actual situation
The particular number of sampling pipe 5 is arranged in experimental provision, for example, if desired volatilizing under four different temperature ranges to a certain metal
Metal vapors be collected, then four sampling pipes 5 can be set, under different temperature ranges, respectively using four sampling
Pipe 5 is collected metal vapors；The rate of recovery of double of volatile metal of experimental rig in the utility model is higher, half-and-half waves
The rate of recovery of hair property metal can exceed that 90%.
As shown in Figure 1, air supply system includes steel cylinder 13, pressure reducing valve 14, mass flow controller 15, surge tank 16 and air inlet
Solenoid valve 17；
Gas is stored in steel cylinder 13, steel cylinder 13 is connect with a port of pressure reducing valve 14, another end of pressure reducing valve 14
Mouth is connect with mass flow controller 15, and mass flow controller 15 is connect with surge tank 16, surge tank 16 and intake solenoid valve
17 a port connection, another port of intake solenoid valve 17 are connect with boiler tube 2,17 electricity of controller 18 and intake solenoid valve
Connection, controller 18 can control the opening of intake solenoid valve 17, be passed through the gas in steel cylinder 13 to boiler tube 2.
Wherein, the gas in steel cylinder 13 can be air, nitrogen or oxygen, mass flow controller 15 for adjust into
Enter the gas flow in boiler tube 2, adjust mass flow controller 15 and aspiration pump 7, is less than the gas flow entered in boiler tube 2
The extraction flow of aspiration pump 7 is in negative pressure state with the condensation part that this makes boiler tube 2 and is mounted in boiler tube 2, and surge tank 16 is used
It is buffered in gas.Intake solenoid valve 17 can choose three-way magnetic valve, a port and buffering of intake solenoid valve 17
Tank 16 connects, and a port is connect with boiler tube 2, another port controls air inlet electromagnetism as bypass emptying, by controller 18
The gas circuit of valve 17 switches.
In the utility model, telescopic device includes servo motor, cam 19 and connecting rod 20, one end of cam 19 and connecting rod 20
Connection, the other end and baffle 4 connection of connecting rod 20, servo motor and cam 19 connect, and controller 18 is electrically connected with servo motor,
Controller 18 can control servo motor band moving cam 19 and rotate, and drive baffle 4 to be inserted into boiler tube 2 by connecting rod 20, or from furnace
It is retracted into pipe 2 in boiler tube slot.Telescopic device may be electric pushrod, push baffle to be inserted into furnace by electric pushrod
In pipe 2；
When needing replacing sampling pipe 5, controller 18 sends the first control instruction to servo motor, drives servo motor
Cam 19 rotates, and connecting rod 20 is ejected, ejects baffle 4 out of boiler tube slot, boiler tube 2 is divided into two regions by cam 19, will
Reaction vessel 3 is isolated, and when having replaced sampling pipe 5, controller 18 sends the second control instruction to three-way magnetic valve 6 first, makes
The port that three-way magnetic valve 6 is connected with the sampling pipe 5 being inserted into boiler tube 2 is opened, and starts to be evacuated, controller 18 retransmits third
Control instruction is to servo motor, and making servo motor, band moving cam 19 rotates again, and cam 19 drives connecting rod 20 to retract, and makes baffle 4
It glides out of boiler tube 2, until the end face of baffle 4 is flushed with the inner wall of boiler tube 2, metal vapors is collected again, in this reality
In novel, the open and close of air supply system and baffle 4 can be merged into a motor switch on controller 18, that is, pressed
When the motor switch, air supply system starts to supply, while connecting rod 20 drives the end face of baffle 4 to flush with the inner wall of boiler tube 2, again
When pressing the motor switch, air supply system stops gas supply, while connecting rod 20 drives baffle 4 to be inserted into boiler tube 2, boiler tube slot
Width is 0.5 ~ 1mm bigger than the thickness of baffle 4, and the width of furnace body slot is 0.5 ~ 1mm bigger than the thickness of baffle 4.
In the present invention, the cross sectional shape of 1 internal cavities of furnace body can be designed and is square, boiler tube 2 is located at furnace
The cross sectional shape of part in body 1 is square, in this way, guarantee baffle 4 be inserted into boiler tube 2 in when, can by reaction vessel 3 every
From the cross sectional shape that boiler tube 2 stretches out the part outside furnace body 1 is circle, and the length that boiler tube 2 is located inside furnace body 1 can be designed as
300 ~ 800mm, the length that furnace body 1 is stretched out at the both ends of boiler tube 2 can be designed as 30 ~ 50mm, and diameter is 30 ~ 50mm, boiler tube slot
The part being square positioned at 2 section of boiler tube, and at 1/3 of the length direction along square portion.Furnace body 1 passes through electricity
Heating furnace is heated, and the material of inner cylinder 8, outer cylinder 9 and baffle 4 can be for quartz glass, corundum, zirconium oxide or high temperature resistant not
Become rusty steel, and the material of reaction vessel 3 can be zirconium oxide, and reaction vessel 3 can be fabricated to the shape of Noah's ark.Hollow plug 11 is
The head diameter of variable diameter hollow glass plug, variable diameter hollow glass plug is minimum, and tail diameter is maximum, the diameter between head and tail portion
Gradual change, cartridge filter 12 are the cartridge filter 12 made of quartz glass fibre, 12 sets of the cartridge filter reduced diameter portions in hollow plug 11,
Hollow plug 11 is equipped with escape pipe 21 far from the part of cartridge filter 12, and escape pipe 21 is connect with a port of three-way magnetic valve 6.
In the present invention, metal vapors collection system further includes drexel bottle 22, the inlet end of drexel bottle 22 and threeway
The a port of solenoid valve 6 connects, and outlet side is connect with the pumping end of aspiration pump 7.The effect of drexel bottle 22 is micro- in order to prevent
The metallic particles of amount is fed directly in air by cartridge filter 12, therefore, if there is micro metal vapors to pass through hollow plug 11,
It then can be by the way that the external world be discharged by aspiration pump 7 again after 22 gas washing of drexel bottle.It can also be set between drexel bottle 22 and aspiration pump 7
A silica dehydrator bottle is set, the inlet end of silica dehydrator bottle is connect with the outlet side of drexel bottle 22, the outlet side of silica dehydrator bottle
It is connect with the pumping end of aspiration pump 7, silica dehydrator bottle is for being dried the gas Jing Guo drexel bottle 22.It can be using connection
Connection of the hose for gas circuit in this experimental rig.
Below to use the experimental rig in the utility model to carry out volatility of the lead oxide between 600 ~ 1000 DEG C
The process of test is described:
0.3g sodium chloride, 0.025g lead oxide, 2.7g silica and 2.3g aluminium oxide are put into reaction vessel 3 and mixed
It closes uniformly, wherein sodium chloride, silica and aluminium oxide participate in reaction, make lead oxide that can volatilize in case of heating, will
Reaction vessel 3 is put into the middle part of boiler tube 2.One end of boiler tube 2 and the intake solenoid valve 17 of air supply system connect, air supply system
Nitrogen is stored in steel cylinder 13；
It is put into a sampling pipe 5 in the other end of boiler tube 2, the gas flow that mass flow controller 15 controls nitrogen is
500ml/ml, aspiration pump 7 work, and the port that the sampling pipe 5 in boiler tube 2 is connect with three-way magnetic valve 6 is opened, and use electric furnace
The control rate of heat addition is 10 DEG C/min, and baffle 4 is in the state in non-intrusive boiler tube 2 at this time, and sampling pipe 5 constantly collects boiler tube 2
Interior metal vapors；
When heating temperature reaches 600 DEG C, air supply system is controlled by controller 18 and stops supplying and controlling the insertion of baffle 4
In boiler tube 2, another sampling pipe 5 is changed, controller 18 controls three-way magnetic valve 6 first and switches route, then controls baffle 4 from furnace
It is retracted in pipe 2, air supply system gas supply is again collected metal vapors in boiler tube 2；
Be repeated more than once movement at 700 DEG C, at 800 DEG C, 900 DEG C when, 1000 DEG C when be repeated once the above process,
Until entire experimental provision takes out the last one sampling pipe 5 when being cooled to room temperature.Entire test process has used 6 sampling pipes 5,
Using the elution of 3% dilute nitric acid solution, the inner wall of condensation part inner cylinder 8 and the outside wall surface of cartridge filter 12 are impregnated, finally filters the liquid
Body is obtained leaded solution example totally 6, the concentration of lead in solution is measured using Atomic absorption instrument, can be obtained each time
The volatile quantity and rate of volatilization of section lead, are up to 91% for the rate of recovery for measuring lead after all data processings.
Experimental rig in the utility model, it is higher to the rate of recovery of metal, 90% or more can be reached, may be implemented to gold
Belong to the dynamic collection of steam；The apparatus structure is simple, and operating process is convenient, realizes the ingenious of negative pressure sampling and cooling integration
Design, solving existing experimental rig, structure is complicated, the low problem of the rate of recovery；It can be to the metal steam generated in boiler tube 2
Gas carries out real-time collecting, solves the problems, such as sampling lag existing for existing experimental rig.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific term) there is meaning identical with the general understanding of those of ordinary skill in the application fields.Should also
Understand, those terms such as defined in the general dictionary, which should be understood that, to be had and the meaning in the context of the prior art
The consistent meaning of justice, and unless defined as here, it will not be explained in an idealized or overly formal meaning.
The meaning of "and/or" described herein refers to that the case where respective individualism or both exists simultaneously wraps
Including including.
The meaning of " connection " described herein can be between component be directly connected to be also possible to pass through between component
Other components are indirectly connected with.
It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model
Member can carry out various changes and amendments in the range of without departing from this item utility model technical idea completely.This item is real
It is not limited to the contents of the specification with novel technical scope, it is necessary to its technology is determined according to scope of the claims
Property range.
Claims (10)
1. one kind can dynamic collection metal vapors tube furnace experimental rig, it is characterised in that: it is described can dynamic collection metal steam
The tube furnace experimental rig of gas includes horizontal tube furnace system, metal vapors collection system, air supply system and controller；
Horizontal tube furnace system includes furnace body, boiler tube, reaction vessel, baffle and telescopic device, and reaction vessel is placed in boiler tube
Interior, boiler tube is located in furnace body and furnace body is stretched out at the both ends of boiler tube, and the side wall of furnace body is equipped with furnace body slot, on boiler tube with furnace body slot
Corresponding position is equipped with boiler tube slot, and baffle is sequentially inserted into furnace body slot and boiler tube slot, and is connected with telescopic device, stretches
Device can drive baffle to be inserted into boiler tube by boiler tube slot, or baffle is driven to be retracted into boiler tube slot out of boiler tube；
Metal vapors collection system includes multiple sampling pipes, three-way magnetic valve and aspiration pump, and each sampling pipe includes condensation part
And filter house, condensation part include inner barrel and outer barrel, outer sleeve outer tube, and the end of inner cylinder and the end of outer cylinder pass through it is with holes
Circular ring plate connection, filter house includes hollow plug and cartridge filter, and hollow plug is inserted into the inner cylinder of condensation part one end, and hollow plug is inserted
Enter the part in inner cylinder and be cased with cartridge filter, for sampling pipe for collecting metal vapors, a port of three-way magnetic valve passes through pipeline
It is connect with the pumping end of aspiration pump, other two port is separately connected two sampling pipes, other two described port passes through respectively
Pipeline is connect with the hollow plug of described two sampling pipes；
The connection of one end of air supply system and boiler tube, when collecting metal vapors, air supply system is boiler tube gas supply, and aspiration pump is evacuated,
The other end of boiler tube is inserted into the condensation part for two sampling pipes connecting with three-way magnetic valve in turn, and the other end of boiler tube is inserted
After one sampling pipe connecting with three-way magnetic valve, the condensation part of reaction vessel and insertion boiler tube is located at the two of boiler tube slot
Side, baffle is located in boiler tube slot at this time, the port that the sampling pipe in controller control insertion boiler tube is connect with three-way magnetic valve
It opens, and controls the port that aspiration pump is connect with three-way magnetic valve simultaneously and open, the sucking rate of aspiration pump is greater than air supply system
Air demand, so that the condensation part in boiler tube and in insertion boiler tube be in negative pressure state, air passes through condensation part circular ring plate with holes
Into in boiler tube, the gas that the air and air supply system provide cools down the metal vapors in boiler tube, and metal vapors is met
Wall surface of the adhering metal particle of cold formation in condensation part inner cylinder and outside wall surface filtering by cartridge filter, when it is described one of them
After the sampling pipe connecting with three-way magnetic valve is collected, controller control telescopic device drives baffle to be inserted by boiler tube slot
In boiler tube, while air supply system stops gas supply, and the sampling pipe in boiler tube is taken out, is adopted what another connect with three-way magnetic valve
Sample pipe is inserted into the other end of boiler tube, and controller controls the port that the sampling pipe in insertion boiler tube is connect with three-way magnetic valve first and beats
It opens, then controls telescopic device again and baffle is driven to be retracted into boiler tube slot out of boiler tube, while air supply system supplies, another
The sampling pipe connecting with three-way magnetic valve starts to collect metal vapors, the complete metal steam of collection that will be connect with three-way magnetic valve
The sampling pipe of gas is dismantled, and the sampling pipe for not collecting metal vapors also is connect with three-way magnetic valve, is each connected with three-way magnetic valve
The mode that the sampling pipe connect collects metal vapors is identical.
2. it is according to claim 1 can dynamic collection metal vapors tube furnace experimental rig, it is characterised in that: the confession
Gas system includes steel cylinder, pressure reducing valve, mass flow controller, surge tank and intake solenoid valve；
Gas, a port connection of steel cylinder and pressure reducing valve, another port of pressure reducing valve and mass flow are stored in steel cylinder
Controller connection, mass flow controller are connect with surge tank, a port connection of surge tank and intake solenoid valve, air inlet electricity
Another port of magnet valve is connect with the boiler tube, and the controller can control intake solenoid valve opening, is made in the steel cylinder
Gas be passed through to the boiler tube.
3. it is according to claim 1 can dynamic collection metal vapors tube furnace experimental rig, it is characterised in that: it is described to stretch
Compression apparatus includes servo motor, cam and connecting rod, and cam is connected with one end of connecting rod, and the other end of connecting rod and the baffle connect
It connects, servo motor is connected with cam, and the controller can control servo motor band moving cam and rotate, and drives the gear by connecting rod
Plate is inserted into the boiler tube, or is retracted into the boiler tube slot out of described boiler tube.
4. it is according to claim 1 can dynamic collection metal vapors tube furnace experimental rig, it is characterised in that: the furnace
The cross sectional shape of body internal cavities is square, and the boiler tube is located at the intracorporal portion cross-sectional shape of the furnace and is square, institute
The portion cross-sectional shape that boiler tube stretches out outside the furnace body is stated as circle.
5. it is according to claim 1 can dynamic collection metal vapors tube furnace experimental rig, it is characterised in that: the gold
Belonging to vapor collection system further includes drexel bottle, and the inlet end of drexel bottle is connect with a port of the three-way magnetic valve, outlet
End is connect with the pumping end of the aspiration pump.
6. it is according to claim 5 can dynamic collection metal vapors tube furnace experimental rig, it is characterised in that: the gold
Belonging to vapor collection system further includes silica dehydrator bottle, and the inlet end of silica dehydrator bottle is connect with the outlet side of the drexel bottle, silicon
The outlet side of glue drying bottle is connect with the pumping end of the aspiration pump.
7. it is according to claim 1 can dynamic collection metal vapors tube furnace experimental rig, it is characterised in that: the sky
Heart plug is variable diameter hollow glass plug, and the cartridge filter is the cartridge filter made of quartz glass fibre, and the cartridge filter covers
The reduced diameter portion of the hollow plug, the hollow plug are equipped with escape pipe, escape pipe and described three far from the part of the cartridge filter
The a port of three-way electromagnetic valve connects.
8. it is according to claim 1 can dynamic collection metal vapors tube furnace experimental rig, it is characterised in that: the gear
The material of plate is quartz glass, corundum, zirconium oxide or high temperature resistant stainless steel.
9. it is according to claim 1 can dynamic collection metal vapors tube furnace experimental rig, it is characterised in that: the furnace
The width of pipe slot is 0.5 ~ 1mm bigger than the thickness of the baffle.
10. it is according to claim 1 can dynamic collection metal vapors tube furnace experimental rig, it is characterised in that: it is described
Aspiration pump is diaphragm pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201821180919.3U CN208383827U (en) | 2018-07-24 | 2018-07-24 | It is a kind of can dynamic collection metal vapors tube furnace experimental rig |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821180919.3U CN208383827U (en) | 2018-07-24 | 2018-07-24 | It is a kind of can dynamic collection metal vapors tube furnace experimental rig |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030708A (en) * | 2018-07-24 | 2018-12-18 | 南京师范大学 | It is a kind of can dynamic collection metal vapors tube furnace experimental rig |
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2018
- 2018-07-24 CN CN201821180919.3U patent/CN208383827U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030708A (en) * | 2018-07-24 | 2018-12-18 | 南京师范大学 | It is a kind of can dynamic collection metal vapors tube furnace experimental rig |
| CN109030708B (en) * | 2018-07-24 | 2023-11-17 | 南京师范大学 | Tubular furnace test device capable of dynamically collecting metal vapor |
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