CN208635118U - Trimethyl aluminium raffinate processing system - Google Patents
Trimethyl aluminium raffinate processing system Download PDFInfo
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- CN208635118U CN208635118U CN201820996318.3U CN201820996318U CN208635118U CN 208635118 U CN208635118 U CN 208635118U CN 201820996318 U CN201820996318 U CN 201820996318U CN 208635118 U CN208635118 U CN 208635118U
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- heptane
- trimethyl aluminium
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Abstract
The utility model discloses a kind of trimethyl aluminium raffinate processing systems, wherein the system comprises inert gas feeding mechanism, heptane storage tank, trimethyl aluminium carrying shield, vermiculite apparatus for placing, push branch, ventilation branches, heptane flow line, gas exhaust piping, drain line.Inert gas feeding mechanism connects heptane storage tank and trimethyl aluminium carrying shield by push branch.Pass through the system operatio, guarantee slowly to drain into vermiculite apparatus for placing by drain line after mixing heptane and raffinate in air-isolation, mixed liquor is all pressed out in vermiculite again, repetitive operation is up to raffinate accounting is less than 10%, it pours out from filtering port to vermiculite apparatus for placing, then refires slow burn-up.For entire processing system to personnel and Environmental security, it is convenient to operate, and will not generate other pollutants.The cost of whole system is low.
Description
Technical field
The utility model relates to crystal-silicon battery slices to carry on the back passivating technique field, specifically a kind of trimethyl aluminium raffinate processing
Equipment.
Background technique
PV photovoltaic industry crystal-silicon battery slice, common crystal-silicon battery slice transfer efficiency is normally no higher than 19.5%, and uses
Al2O3The crystal-silicon battery slice transfer efficiency for carrying on the back passivation technology can be more than 20.5%, in the industry referred to as high-efficiency battery piece.Trimethyl aluminium
TMA is exactly the most important liquid source used in crystal-silicon battery slice back passivation technology.
Since nearly one or two years just starts by small lot application TMA liquid source supplying system at home, there is presently no encounter
Surge tank needs remove the problem of cleaning inside raffinate, also just without the mature technology scheme of raffinate in safe handling surge tank；
As photovoltaic industry PERC carries on the back the extensive online of passivating technique, more and more TMA supply systems can be put into operation, be
System operation is long, will encounter the contaminated problem of surge tank inner surface, also just there is an urgent need to develop a kind of safe handling liquid
The solution of raffinate in the surge tank of source.
Summary of the invention
In view of this, technical problem to be solved in the utility model is to overcome the deficiencies of the prior art and provide a kind of peace
The equipment of raffinate in full processing trimethyl aluminium liquid source surge tank.
The utility model is solved the above problems by following technological means:
A kind of trimethyl aluminium raffinate processing system of the utility model, including inert gas feeding mechanism, heptane storage tank,
Trimethyl aluminium carrying shield, vermiculite apparatus for placing, push branch, ventilation branch, heptane flow line, gas exhaust piping, drain line；
Inert gas feeding mechanism gas outlet is equipped with pressure reducing valve；
The heptane storage upper end air inlet is equipped with valve one, top exhaust outlet is equipped with valve two, bottom end leakage fluid dram is set
There are valve three, top filling opening to be equipped with sealing flange one；
Trimethyl aluminium carrying shield top inlet is equipped with valve four, top exhaust outlet is equipped with valve five, top liquid outlet
Equipped with valve six and lower part connection is passed through the outlet tube of tank bottom, top filtering port is equipped with sealing flange two；
The push branch further includes pushing the first push branch pipe, the second push branch pipe that general pipeline and one end are set up separately, described
The general pipeline connection pressure reducing valve, the first push branch pipe one end connecting valve one are pushed, second push branch pipe one end is set
There is valve seven；
The ventilation branch further includes common air chamber and the first vent branch, the second vent branch that one end is set up separately, described
Common air chamber connects the valve five, and first vent branch one end connecting valve seven, second vent branch one end is set
There is valve eight, eight other end of valve connects gas exhaust piping, and the gas exhaust piping other end protrudes into the vermiculite apparatus for placing；
Heptane flow line one end connecting valve three, other end connecting valve four；
Described drain line one end connecting valve six, the other end protrude into the vermiculite apparatus for placing.
Further, the inert gas feeding mechanism is nitrogen cylinder.
Further, the push branch, ventilation branch, drain line, gas exhaust piping are 1/4 " stainless-steel pipe.
Further, the heptane flow line is 1/4 " plastic, transparent hose.
Further, the valve one to valve eight is hand-operated valve.
Trimethyl aluminium raffinate processing system provided by the utility model, is guaranteed by the equipment in air-isolation
Vermiculite apparatus for placing is slowly drained by drain line after heptane and raffinate are mixed, then mixed liquor is all pressed out to vermiculite
Interior, repetitive operation is until raffinate accounting less than 10%, is poured out to vermiculite apparatus for placing from filtering port, then refires slow burning
Fall.For whole system to personnel and Environmental security, it is convenient to operate, and will not generate other pollutants.The cost of whole system is low.
Detailed description of the invention
The utility model is further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Appended drawing reference: 1- nitrogen cylinder, 11- pressure reducing valve, 2- heptane storage tank, 201- valve one, 202-valves two, 203-
Valve three, 21- sealing flange one, 3- include the surge tank of TMA raffinate, 304-valves four, 305- valve five, 306- valve six,
31- outlet tube, 32- sealing flange two, 4- vermiculite apparatus for placing, 5- push branch, and 51- pushes general pipeline, the push branch of 52- first
Pipe, 53- second push branch pipe, 507- valve seven, 6- ventilation branch, 61- common air chamber, the first vent branch of 62-, 63- second
Vent branch, 608- valve eight, 7- plastic, transparent hose, 8- gas exhaust piping, 9- drain line.
Specific embodiment
The utility model is described in detail below with reference to Fig. 1, a kind of trimethyl aluminium raffinate described in the present embodiment
Processing system, specifically, including nitrogen cylinder 1, heptane storage tank 2, the surge tank 3 for including TMA raffinate, vermiculite apparatus for placing 4,
Push branch 5, ventilation branch 6, plastic, transparent hose 7, gas exhaust piping 8, drain line 9；
1 gas outlet of nitrogen cylinder is equipped with pressure reducing valve 11；
The 2 top air inlet of heptane storage tank is equipped with valve 1, top exhaust outlet is equipped with valve 2 202, bottom end is arranged
Liquid mouth is equipped with valve 3 203, top filling opening is equipped with sealing flange 1；
The 3 top inlet of surge tank for including TMA raffinate is equipped with valve 4 304, top exhaust outlet is equipped with valve five
305, top liquid outlet is equipped with valve 6 306 and lower part connection is passed through the outlet tube 31 of tank bottom, top filtering port is equipped with Sealing Method
Orchid 2 32；
The push branch 5 further includes push general pipeline 51 and the first push push branch pipe of branch pipe 52, second that one end is set up separately
53, the push general pipeline 51 connect the pressure reducing valve 11, the first push 52 one end connecting valve 1 of branch pipe, and described the
Two push 53 one end of branch pipe are equipped with valve 7 507；
The ventilation branch 6 further includes common air chamber 61 and the first vent branch 62, the second vent branch that one end is set up separately
63, the common air chamber 61 connects the valve 5 305,62 one end connecting valve 7 507 of the first vent branch, and described
Two vent branch, 63 one end is equipped with valve 8 608, and 8 608 other end of valve connects gas exhaust piping 8, the gas exhaust piping 8
The other end protrudes into the vermiculite apparatus for placing 4；
7 one end connecting valve 3 203 of plastic, transparent hose, other end connecting valve 4 304；
9 one end connecting valve 6 306 of drain line, the other end protrude into the vermiculite apparatus for placing 4.
Nitrogen cylinder is as inert gas feeding mechanism general at present, and at low cost, operating method is mature.
As a further improvement of the above technical scheme, the push branch 5, ventilation branch 6, drain line 8, exhaust
Pipeline 9 is 1/4 " stainless-steel pipe.1/4 " stainless-steel pipe is widely used, and reduces the production cost of equipment, facilitates maintenance.
Heptane flow line is 1/4, and " plastic, transparent hose 7 is observed that the feed liquor of heptane using plastic, transparent hose 7
Situation facilitates operation and control heptane feed liquor.
As a further improvement of the above technical scheme, the valve 1 to valve 8 608 is hand-operated valve, hand-operated valve
For most conventional valve, production is simple, maintains easily, and reduces equipment production cost and simple to operate.
Trimethyl aluminium raffinate processing method is carried out using above system, comprising the following steps:
Step a: replacing purge operations by nitrogen, and the surge tank 3 for including TMA raffinate is supplied from trimethyl aluminium
It is removed in system；
Step b: under the premise of completely isolated air, heptane organic solvent is slowly added into and includes the slow of TMA raffinate
It rushes in tank 3, is sufficiently mixed uniformly with trimethyl aluminium raffinate；
Step c: the mixed liquor in the surge tank 3 for including TMA raffinate is continued slowly to be pressed out to vermiculite by nitrogen pressure
Heap, until hydraulic hybrid is complete；
Step d, repeats the operation of step b, c until when trimethyl aluminium raffinate and heptane ratio are less than 10%, by raffinate from top
End filtering port pours into vermiculite heap；
Step e carries out ignition to mixing liquid in vermiculite；
Step f carries out drying processing to 3 inner wall of surge tank for including TMA raffinate using nitrogen.
Embodiment specifically operates as follows:
It first does homework, purge operations is replaced by nitrogen, removes include TMA raffinate in centralizedly supply system safely
Surge tank 3, choose 10L slack tank 1 and be used as heptane storage tank 2, canister > 50L for placing vermiculite, vermiculite put to
50% is used as vermiculite apparatus for placing 4, technical pure heptane 15L, the appropriate amount that single surge tank processing needs, a mobile nitrogen
Bottle 1 purges trolley, and pipeline is several.
TMA raffinate step is handled in surge tank:
Step 1: first connecting following pipeline, the row of push branch 5, ventilation branch 6, TMA liquid source surge tank 3 by diagram
Liquid pipeline 9 and gas exhaust piping 8, it is ensured that the distance between vermiculite apparatus for placing 4 and surge tank 3 > 5 meters, it is ensured that the institute on surge tank 3
Valve is all closed state always；
Step 2: the pressure reducing valve 11 that adjustment nitrogen cylinder 1 exports to outlet pressure 0.5bar, by operation heptane storage tank 2
Valve 1 and valve 3 203 switch respectively, carry out circulating purification 10 times to heptane storage tank 2, it is therefore an objective to displace heptane
Air in storage tank 2 closes valve 1 and valve 3 203；
Step 3: by the plastic, transparent hose 7 between diagram two storage tanks of connection, first plastic, transparent hose 7 one being connected
It is exported to 2 valve 3 203 of heptane storage tank, then opens valve 1 and valve 3 203, in the case where nitrogen persistently purges, transparent
The other end of hose 7 is connected to 3 valve of surge tank, 4 304 import, closes valve 1 and valve 3 203；
Step 4: 2 top flange 1 of 10L heptane storage tank is opened, about 10L (~6.5kg) commercially pure heptane is poured into,
It retightens and flange 1 is sealed；
Step 5: being switched respectively by valve 1 and valve 2 202,2 upper air of heptane storage tank is recycled
Purification 10 times, it is therefore an objective to displace the air of 2 liquid upper of heptane storage tank, close valve 1 and valve 2 202；
Step 6: valve 5 305 and valve 8 608 on surge tank 3 are opened, unloads the gas pressure bled off inside surge tank 3,1
Valve 4 304 is opened after minute, then successively opens valve 1 and valve 3 203, and heptane is slowly pressed into TMA surge tank 3
It is interior, until heptane all extrudes, by the way that whether there is or not liquid determinations in observation transparent hose 7；It simultaneously can be light in the heptane charging stage
Jog shakes TMA surge tank 3, then successively closes valve 1 and valve 5 305, stands 10 minutes；
Step 7: slowly open valve 6 306 on surge tank, a small amount of heptane that observation is extruded by overbottom pressure in surge tank 3 and
TMA mixed liquor situation, then valve 1 is slowly opened, the mixed liquor in surge tank is continued slowly to extrude by nitrogen pressure
To vermiculite heap, until hydraulic hybrid is complete；
Step 8: closing whole hand-operated valves；
Step 9: dismantling 2 top flange 1 of 10L heptane storage tank, it is commercially pure to pour into about 5L (~3.5kg) for the second time
Heptane retightens and flange 1 is sealed；Repeat step 5,6,7,8；Continue to dilute TMA mixed liquor and dissolve, removes its danger
Evil property.
Step 10: removing TMA surge tank 3, and dismantle 3 top flange 2 31 of TMA surge tank, heptane raffinate is all toppled over
Enter in vermiculite apparatus for placing 4；
Step 11: ignition is carried out to mixing liquid in vermiculite；
Step 12: valve 6 306, valve 5 305, valve 7 507 are successively opened, using nitrogen to 3 inner wall of TMA surge tank
Carry out necessary pre-blowing dry-cure.
3 inner surface pollution condition of TMA surge tank is observed, is determined using subsequent places such as the cleaning of lye pure water or electrobrightenings
Reason method.
The gap for including the 3 distance from bottom outlet tube of surge tank of TMA raffinate is generally 5-10mm, directly can be with according to tank body
Calculate residual night approximate volume, so as to be inferred to heptane dosage and diluted number.In addition, this system can also be applied
In such as SiHCl3、SiCl4、Zn(C2H5)2The raffinate processing of equal liquid sources, it is suitable organic molten according to different types of residual night selection
Agent carries out dissolved dilution, and system for use in carrying is similar with the utility model.
Trimethyl aluminium raffinate processing system provided by the utility model, the cost of whole system are low.Whole system operation side
For method to personnel and Environmental security, it is convenient to operate, and will not generate other pollutants.
Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, those skilled in the art should understand that, it can be to this
The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model
It encloses, should all cover in the scope of the claims of the utility model.
Claims (5)
1. a kind of trimethyl aluminium raffinate processing system, which is characterized in that including inert gas feeding mechanism, heptane storage tank, three
Aluminium methyl carrying shield, vermiculite apparatus for placing, push branch, ventilation branch, heptane flow line, gas exhaust piping, drain line；
Inert gas feeding mechanism gas outlet is equipped with pressure reducing valve；
The heptane storage upper end air inlet is equipped with valve one, top exhaust outlet is equipped with valve two, bottom end leakage fluid dram is equipped with valve
Door three, top filling opening are equipped with sealing flange one；
Trimethyl aluminium carrying shield top inlet is equipped with valve four, top exhaust outlet is equipped with valve five, top liquid outlet is equipped with
Valve six and lower part connection are passed through the outlet tube of tank bottom, top filtering port is equipped with sealing flange two；
The push branch further includes push general pipeline and the first push branch pipe, the second push branch pipe that one end is set up separately, the push
The general pipeline connection pressure reducing valve, the first push branch pipe one end connecting valve one, second push branch pipe one end are equipped with valve
Door seven；
The ventilation branch further includes common air chamber and the first vent branch, the second vent branch that one end is set up separately, the ventilation
The general pipeline connection valve five, first vent branch one end connecting valve seven, second vent branch one end are equipped with valve
Door eight, eight other end of valve connect gas exhaust piping, and the gas exhaust piping other end protrudes into the vermiculite apparatus for placing；
Heptane flow line one end connecting valve three, other end connecting valve four；
Described drain line one end connecting valve six, the other end protrude into the vermiculite apparatus for placing.
2. a kind of trimethyl aluminium raffinate processing system as described in claim 1, which is characterized in that the inert gas supply dress
It is set to nitrogen cylinder.
3. a kind of trimethyl aluminium raffinate processing system as described in claim 1, which is characterized in that the push branch, ventilation
Branch, drain line, gas exhaust piping are 1/4 " stainless-steel pipe.
4. a kind of trimethyl aluminium raffinate processing system as described in claim 1, which is characterized in that the heptane flow line is
1/4 " plastic, transparent hose.
5. a kind of trimethyl aluminium raffinate processing system as described in claim 1, which is characterized in that the valve one to valve eight
For hand-operated valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820996318.3U CN208635118U (en) | 2018-06-26 | 2018-06-26 | Trimethyl aluminium raffinate processing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820996318.3U CN208635118U (en) | 2018-06-26 | 2018-06-26 | Trimethyl aluminium raffinate processing system |
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| Publication Number | Publication Date |
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| CN208635118U true CN208635118U (en) | 2019-03-22 |
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ID=65733772
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820996318.3U Active CN208635118U (en) | 2018-06-26 | 2018-06-26 | Trimethyl aluminium raffinate processing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113739074A (en) * | 2021-09-22 | 2021-12-03 | 凯泰（滁州）流体控制有限公司 | Method and device for automatically identifying and removing sediment water of low-level pipeline of spherical tank |
-
2018
- 2018-06-26 CN CN201820996318.3U patent/CN208635118U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113739074A (en) * | 2021-09-22 | 2021-12-03 | 凯泰（滁州）流体控制有限公司 | Method and device for automatically identifying and removing sediment water of low-level pipeline of spherical tank |
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