CN112408468A - Slurry returning device and method for chlorination furnace - Google Patents
Slurry returning device and method for chlorination furnace Download PDFInfo
- Publication number
- CN112408468A CN112408468A CN202011265122.5A CN202011265122A CN112408468A CN 112408468 A CN112408468 A CN 112408468A CN 202011265122 A CN202011265122 A CN 202011265122A CN 112408468 A CN112408468 A CN 112408468A
- Authority
- CN
- China
- Prior art keywords
- valve
- slurry
- chlorination furnace
- spray
- titanium tetrachloride
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002002 slurry Substances 0.000 title claims abstract description 85
- 238000005660 chlorination reaction Methods 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000007921 spray Substances 0.000 claims abstract description 85
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims abstract description 52
- 238000005507 spraying Methods 0.000 claims abstract description 38
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 60
- 229910052757 nitrogen Inorganic materials 0.000 claims description 30
- 239000002245 particle Substances 0.000 claims description 15
- 239000000428 dust Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 8
- 239000012535 impurity Substances 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 15
- 238000000889 atomisation Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 150000003839 salts Chemical class 0.000 abstract description 7
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 241000405070 Percophidae Species 0.000 description 4
- 229910000619 316 stainless steel Inorganic materials 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003595 mist Substances 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 229910000623 nickel–chromium alloy Inorganic materials 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/02—Halides of titanium
- C01G23/022—Titanium tetrachloride
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention belongs to the field of metallurgical production equipment manufacturing, and particularly relates to a device and a method for returning slurry to a chlorination furnace, which solve the problems that a spray head is poor in atomization effect and easy to block, local temperature imbalance of the chlorination furnace is easy to cause, negative pressure of the chlorination furnace is unstable when the spraying amount is adjusted, titanium tetrachloride furnace gas cannot be fully contacted with slurry spray, and the content of impurities in crude titanium tetrachloride is increased. Including spray piping and power ripples shower nozzle, spray piping is connected with power ripples shower nozzle, power ripples shower nozzle is located the chlorination stove, the chlorination stove is provided with the flue opening, power ripples shower nozzle's nozzle dorsad flue opening. The invention ensures that the spray head has better atomization effect and is not easy to block, the pressure and the temperature in the furnace are stabilized during spraying, the titanium tetrachloride furnace gas is fully contacted with slurry spray, and the content of impurities in the crude titanium tetrachloride is reduced. The invention is suitable for returning titanium tetrachloride slurry to a chlorination furnace in molten salt chlorination.
Description
Technical Field
The invention belongs to the field of metallurgical production equipment manufacturing, and particularly relates to a chlorination furnace slurry return device and method.
Background
At present, the production of titanium tetrachloride at home and abroad mainly adopts two forms of molten salt chlorination and boiling chlorination. The method combines the characteristics of good calcium and magnesium contents of titanium ore in China and the technical blockade of the boiling chlorination technology abroad, and the titanium tetrachloride production in China is mainly in the form of molten salt chlorination. In the process of producing the molten salt by chlorination, in order to control the furnace temperature and the impurity content of crude titanium tetrachloride, the titanium tetrachloride with higher impurity content is generally returned to the chlorination furnace again to realize the impurity removal of the slurry and control of the furnace temperature. In order to improve the spraying effect of titanium tetrachloride returned into the furnace, a spray nozzle is usually additionally arranged at the tail end of the slurry return pipeline.
At present, the spray head mainly adopted in China has two forms, namely a pore plate form and a duckbill form. Although the two types of spray heads are simple to manufacture, the orifice plate spray head has poor atomization effect, local temperature imbalance of the chlorination furnace is easily caused, the overall negative pressure fluctuation of the chlorination furnace is easily caused when the spraying amount is adjusted, part of furnace gas cannot be effectively leached by the spraying liquid, and the impurity content in the crude titanium tetrachloride is increased. Although the atomization effect of the duckbill nozzle is slightly superior to that of a hole plate nozzle, the atomization effect of the duckbill nozzle cannot meet the spraying requirement of the molten salt chlorination furnace, and the duckbill nozzle is easily blocked by impurities to cause the out-of-control rise of the furnace temperature.
Disclosure of Invention
The method aims to solve the problems that in the prior art, a spray head of a slurry return device of a chlorination furnace is poor in atomization effect and easy to block, local temperature of the chlorination furnace is easy to be unbalanced, negative pressure of the chlorination furnace is unstable when spraying amount is adjusted, titanium tetrachloride furnace gas cannot be fully contacted with slurry spray, and the content of impurities in crude titanium tetrachloride is increased. The invention provides a chlorination furnace slurry return device and a chlorination furnace slurry return method, and aims to provide a chlorination furnace slurry return device which comprises the following steps: the spray nozzle has better atomization effect and is not easy to block, the pressure and the temperature in the furnace are stabilized during spraying, the titanium tetrachloride furnace gas is fully contacted with the slurry spray, and the content of impurities in the crude titanium tetrachloride is reduced.
The scheme adopted by the invention is as follows:
the utility model provides a chlorination furnace returns thick liquid device which characterized in that: including spray piping and power ripples shower nozzle, spray piping is connected with power ripples shower nozzle, power ripples shower nozzle is located the chlorination stove, the chlorination stove is provided with the flue opening, power ripples shower nozzle's nozzle dorsad flue opening.
Adopt above-mentioned scheme, the power ripples shower nozzle sprays atomizing mud in the chlorination furnace, and the power ripples shower nozzle uses when returning the thick liquid shower nozzle as the chlorination furnace, and the material of power ripples shower nozzle is 321 stainless steel or 316L stainless steel or heat-resisting corrosion resistant nickel chromium alloy, and the atomization effect of power ripples shower nozzle is better, and it is more exquisite to spout mud spraying particle diameter, and the difficult accident that produces the jam of power ripples shower nozzle and cause the interior temperature rise of chlorination furnace out of control, the dangerous accident appears. The nozzle of the power wave nozzle is arranged back to the flue opening instead of directly spraying to the bottom of the chlorination furnace, so that the temperature of a molten salt layer of the chlorination furnace is not easily influenced, the slurry spray is fully contacted with dust particles in the titanium tetrachloride, the dust particles are polymerized and increased, the sedimentation is convenient, the dust particles wrap the slurry spray and flow to the flue opening, and the content of impurities in the coarse titanium tetrachloride is reduced.
Preferably, the distance between the dynamic wave nozzle and the flue opening is 70-80 cm. By adopting the preferred scheme, when the distance between the power wave spray nozzle and the flue opening is 70-80cm, the slurry spray sprayed by the power wave spray nozzle covers the flue opening, so that the titanium tetrachloride flowing out of the flue opening is fully mixed with the slurry spray, and when the distance between the power wave spray nozzle and the flue opening is small, the power wave spray nozzle stops the titanium tetrachloride from flowing to the flue opening to a certain extent, so that the production efficiency is reduced; when the distance between the power wave nozzle and the flue opening is larger, the slurry spray cannot be fully contacted with the titanium tetrachloride, and the impurity content in the coarse titanium tetrachloride is increased because a large amount of dust particles in the titanium tetrachloride are not coated with the slurry.
Preferably, the spraying pipeline is provided with a dredging port at one end far away from the power wave nozzle, a feeding port is arranged on the pipe wall of the spraying pipeline, and the feeding port is connected with the feeding pipe. Adopt this preferred scheme, spray piping keeps away from power ripples shower nozzle one end and is provided with and dredge the opening for impurity particle is too big in the mud, and impurity is when too much silt is built up to spray piping and power ripples shower nozzle, artifical repair. The feed inlet is provided with a feed pipe for connecting slurry.
Preferably, the included angle between the feeding pipe and the spraying pipeline is 45-135 degrees. By adopting the preferred scheme, when the included angle between the feeding pipe and the spray pipeline is 45-135 degrees, the slurry in the feeding pipe enters the spray pipeline, and due to the buffer effect of the inner wall of the spray pipeline, the slurry entering the spray pipeline is uniformly distributed and sprayed in the spray pipeline, so that the slurry sprayed by the power wave spray head is finer and finer, and the spraying effect is better.
Preferably, the feeding pipe is communicated with a nitrogen pipeline, the nitrogen pipeline is connected with a third valve, and the third valve is connected with a nitrogen tank. By adopting the preferred scheme, the feeding pipe is connected with the nitrogen pipeline to spray nitrogen for dredging the spray pipeline and the dynamic wave nozzle, so that the spray pipeline and the dynamic wave nozzle are prevented from being blocked, and further the temperature in the chlorination furnace is increased out of control, and dangerous accidents occur.
Preferably, a flowmeter, a pressure transmitter, a second pneumatic valve, a second valve, a centrifugal pump and a first valve are sequentially arranged on the feeding pipe, the other end of the first valve is connected with a titanium tetrachloride tank, and the first valve is connected to the lower end of the titanium tetrachloride tank. By adopting the preferable scheme, the upper layer in the titanium tetrachloride tank is clear liquid, the lower layer is slurry, the clear liquid at the upper layer is cooled, the slurry at the lower layer returns to the chlorination furnace to cool the chlorination furnace and reduce impurities in the crude titanium tetrachloride, the flow meter measures the flow rate of the slurry flowing into the feeding pipe in real time, the pressure transmitter measures the pressure in the feeding pipe so as to prevent the device from being damaged due to overlarge pressure, and the centrifugal pump provides power and pumps the slurry into the chlorination furnace again.
Preferably, a return line is arranged at the upper end of the titanium tetrachloride tank, the return line is provided with a first pneumatic valve, and the other end of the return line is arranged between the second valve and the second pneumatic valve. Adopt this preferred scheme, when the backflow pipeline was arranged in the inlet pipe mud flow too big, and the output flow of centrifugal pump was not convenient for accurate regulation, through opening first pneumatic valve, through the mud of second valve, partly flow direction second pneumatic valve, and then flow direction power ripples shower nozzle, the first pneumatic valve of another part flow direction returns titanium tetrachloride jar in, adjustment mud flow reduces pressure in the inlet pipe, adjusts power ripples shower nozzle spraying effect.
Preferably, the third valve, the flowmeter, the pressure transmitter and the first pneumatic valve are all connected with a control system. With the preferred scheme, the control system controls the third valve to adjust the nitrogen flow of the nitrogen pipeline and the nitrogen flow; the control system receives flow direction data of the flowmeter and adjusts the flow rate in the feeding pipe in time; the control system receives pressure data of the pressure transmitter, and adjusts the flow in the feeding pipe in time so as to change the pressure in the feeding pipe; the control system controls the opening and closing of the first pneumatic valve and the opening degree, controls the return pipeline, and opens the first pneumatic valve when the flow of the feeding pipe is overlarge; when the flow is small, the opening degree of the first pneumatic valve is increased; when the flow rate is normal, the first pneumatic valve is closed.
A method for returning slurry to a chlorination furnace comprises the following steps: the method comprises the following steps: opening the first valve, enabling slurry in the titanium tetrachloride tank to sequentially flow through the first valve, the centrifugal pump, the second valve, the second pneumatic valve, the pressure transmitter, the flowmeter, the spraying pipeline and the power wave nozzle, wherein the power wave nozzle is opposite to the flue opening and sprays slurry mist, the slurry mist covers the flue opening, and dust particles in the titanium tetrachloride wrap the slurry mist and flow to the flue opening;
step two: the flow meter detects the flow rate of flowing through in real time, when the flow rate is overlarge, the flow meter transmits data to the control system, the control system adjusts the first pneumatic valve to enable the first pneumatic valve to be opened, the opening degree of the first pneumatic valve is adjusted to enable the first pneumatic valve to shunt the flow rate of mud flowing out of the second valve, and the control system adjusts the first pneumatic valve to stop changing until the flow rate detected by the flow meter is normal; when the flow is small, the opening degree of the first pneumatic valve is increased; when the flow is normal, the first pneumatic valve is in a closed state.
Step three: the dynamic wave sprayer finishes spraying, the flowmeter detects that the inflow is zero, data are transmitted to the control system, the control system controls the third valve to be opened, the nitrogen tank releases nitrogen to flow into the spraying pipeline for cooling the dynamic wave sprayer, and residual slurry in the spraying pipeline and the dynamic wave sprayer is blown and swept to prevent the spraying pipeline and the dynamic wave sprayer from being blocked.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, the power wave spray head sprays atomized slurry in the chlorination furnace, the power wave spray head is used as a slurry return spray head of the chlorination furnace, the power wave spray head is made of 321 stainless steel or 316L stainless steel or heat-resistant and corrosion-resistant nickel-chromium alloy, the atomization effect of the power wave spray head is better, the particle size of sprayed slurry is finer, and the power wave spray head is not easy to generate blockage accidents, so that the temperature in the chlorination furnace is increased and out of control, and dangerous accidents occur. The nozzle of the power wave nozzle is arranged back to the flue opening instead of directly spraying to the bottom of the chlorination furnace, so that the temperature of a molten salt layer of the chlorination furnace is not easily influenced, the slurry spray is fully contacted with dust particles in the titanium tetrachloride, the dust particles are polymerized and increased, the sedimentation is convenient, the dust particles wrap the slurry spray and flow to the flue opening, and the content of impurities in the coarse titanium tetrachloride is reduced.
2. In the invention, when the distance between the power wave spray nozzle and the flue opening is 70-80cm, the slurry spray sprayed by the power wave spray nozzle covers the flue opening, so that the titanium tetrachloride flowing out of the flue opening is fully mixed with the slurry spray, and when the distance between the power wave spray nozzle and the flue opening is smaller, the power wave spray nozzle stops the titanium tetrachloride from flowing to the flue opening to a certain extent, thereby reducing the production efficiency; when the distance between the power wave nozzle and the flue opening is larger, the slurry spray cannot be fully contacted with the titanium tetrachloride, and the impurity content in the coarse titanium tetrachloride is increased because a large amount of dust particles in the titanium tetrachloride are not coated with the slurry.
3. In the invention, the end of the spray pipeline, which is far away from the dynamic wave nozzle, is provided with the dredging hole, so that when the impurity particles in the slurry are too large and the impurity accumulates too much sludge in the spray pipeline and the dynamic wave nozzle, the manual repair is carried out. The feed inlet is provided with a feed pipe for connecting slurry.
4. According to the invention, when the included angle between the feeding pipe and the spraying pipeline is 45-135 degrees, the slurry in the feeding pipe enters the spraying pipeline, and due to the buffering effect of the inner wall of the spraying pipeline, the slurry entering the spraying pipeline is uniformly distributed in the spraying pipeline, so that the slurry sprayed by the power wave spray head is more exquisite in spray and better in spray effect.
5. According to the invention, the feeding pipe is connected with the nitrogen pipeline to spray nitrogen to dredge the spray pipeline and the dynamic wave nozzle, so that the spray pipeline and the dynamic wave nozzle are prevented from being blocked, and further the temperature in the chlorination furnace is increased out of control, and dangerous accidents are caused.
6. In the invention, the upper layer of the titanium tetrachloride tank is clear liquid, the lower layer of the titanium tetrachloride tank is slurry, the clear liquid at the upper layer is cooled, the slurry at the lower layer returns to the chlorination furnace to cool the chlorination furnace and reduce impurities in crude titanium tetrachloride, the flow meter measures the flow of the slurry flowing into the feeding pipe in real time, the pressure transmitter measures the pressure in the feeding pipe so as to prevent the device from being damaged due to overlarge pressure, and the centrifugal pump provides power to re-pump the slurry into the chlorination furnace.
7. According to the invention, when the backflow pipeline is used for enabling the flow of slurry in the feeding pipe to be overlarge, the output flow of the centrifugal pump is not convenient to accurately adjust, one part of the slurry passing through the second valve flows to the second pneumatic valve and further flows to the power wave spray head by opening the first pneumatic valve, and the other part of the slurry flows to the first pneumatic valve and returns to the titanium tetrachloride tank, so that the flow of the slurry is adjusted, the pressure in the feeding pipe is reduced, and the spraying effect of the power wave spray head is adjusted.
8. In the invention, the control system controls the third valve to adjust the nitrogen flow of the nitrogen pipeline and the nitrogen flow; the control system receives flow direction data of the flowmeter and adjusts the flow rate in the feeding pipe in time; the control system receives pressure data of the pressure transmitter, and adjusts the flow in the feeding pipe in time so as to change the pressure in the feeding pipe; the control system controls the opening and closing of the first pneumatic valve and the opening degree, controls the return pipeline, and opens the first pneumatic valve when the flow of the feeding pipe is overlarge; when the flow is small, the opening degree of the first pneumatic valve is increased; when the flow rate is normal, the first pneumatic valve is closed.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural diagram of a slurry returning device of a chlorination furnace;
FIG. 2 is a flow chart of slurry return of the slurry return device of the chlorination furnace.
Reference numerals: 1-dredging the opening; 2-a feed inlet; 3-feeding pipe; 4-a third valve; 5-a spray pipeline; 6-dynamic wave nozzle; 7-chlorination furnace; 8-flue port; 9-nitrogen tank; 10-a flow meter; 11-a pressure transmitter; 12-a second pneumatic valve; 13-a first pneumatic valve; 14-a second valve; 15-a centrifugal pump; 16-a first valve; 17-titanium tetrachloride tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention is described in detail below with reference to fig. 1-2.
The first embodiment is as follows:
in this embodiment, spray pipe 5 and power ripples shower nozzle 6 welding together, power ripples shower nozzle 6 is located chlorination furnace 7, chlorination furnace 7 is provided with flue opening 8, the material of power ripples shower nozzle 6 is 316 stainless steel, power ripples shower nozzle 6's nozzle is flue opening 8 dorsad, the distance between power ripples shower nozzle 6 and the flue opening 8 is 80cm, spray pipe 5 keeps away from 6 one end of power ripples shower nozzle and is provided with dredging opening 1, it is the round hole to dredge empty 1, be provided with charge door 2 on the 5 pipe walls of spray pipe, charge door 2 links to each other with inlet pipe 3, the contained angle between inlet pipe 3 and the spray pipe 5 is 90, it has nitrogen conduit to communicate on the pipe wall of inlet pipe 3, nitrogen conduit is connected with third valve 4, third valve 4 is connected with nitrogen gas jar 9.
The feeding pipe 3 is sequentially provided with a flowmeter 10, a pressure transmitter 11, a second pneumatic valve 12, a second valve 14, a centrifugal pump 15 and a first valve 16, the other end of the first valve 16 is connected with a titanium tetrachloride tank 17, the first valve 16 is connected to the lower end of the titanium tetrachloride tank 17, the upper end of the titanium tetrachloride tank 17 is provided with a return pipeline, the return pipeline is provided with a first pneumatic valve 13, the other end of the return pipeline is arranged between the second valve 14 and the second pneumatic valve 12, and the third valve 4, the flowmeter 10, the pressure transmitter 11 and the first pneumatic valve 13 are all connected with a control system. The control system controls the third valve 4 to adjust the nitrogen flow of the nitrogen pipeline and the nitrogen flow; the control system receives flow direction data of the flowmeter 10 and adjusts the flow rate in the feeding pipe 3 in time; the control system receives pressure data of the pressure transmitter 11, and adjusts the flow in the feeding pipe 3 in time, so as to change the pressure in the feeding pipe 3; the control system controls the opening and closing of the first pneumatic valve 16 and the opening degree, and further controls the flow rate in the feeding pipe 3.
The first valve 16 is opened, slurry in the titanium tetrachloride tank 17 flows through the first valve 16, the centrifugal pump 15, the second valve 14, the second pneumatic valve 12, the pressure transmitter 11, the flowmeter 10, the spray pipeline 5 and the power wave nozzle 6 in sequence, the power wave nozzle 6 sprays slurry spray to the flue opening in a back direction, the slurry spray covers the flue opening 8, and dust particles in the titanium tetrachloride wrap the slurry spray and flow to the flue opening 8.
The flowmeter 10 detects the flow in the feeding pipe 3 in real time, when the flow is too large, the flowmeter 10 transmits data to the control system, the control system adjusts the first pneumatic valve 13 to open the first pneumatic valve 13, the opening degree of the first pneumatic valve 13 is adjusted, the first pneumatic valve 13 divides the flow of the slurry flowing out of the second valve 14 until the flowmeter 10 detects that the flow is normal, and the control system adjusts the first pneumatic valve 13 to stop changing; when the flow rate is small, the opening degree of the first pneumatic valve 13 is increased; when the flow rate is normal, the first pneumatic valve 13 is in a closed state.
The spraying of the dynamic wave sprayer 6 is finished, the flow meter 10 detects that the inflow is zero, data are transmitted to the control system, the control system controls the third valve 4 to be opened, the nitrogen tank 9 releases nitrogen to flow into the spraying pipeline for cooling the dynamic wave sprayer 6, and residual slurry in the spraying pipeline 5 and the dynamic wave sprayer 6 is purged to prevent the spraying pipeline 5 and the dynamic wave sprayer 6 from being blocked.
Example two:
the technical solution of this embodiment is basically the same as that of the first embodiment, and the difference is that:
in this embodiment, the material of the dynamic wave nozzle 6 is 321 stainless steel, the spray pipe 5 and the dynamic wave nozzle 6 are connected together by a thread, the distance between the dynamic wave nozzle 6 and the flue opening 8 is 70cm, and the included angle between the feeding pipe 3 and the spray pipe 5 is 45 °.
Example three:
in this embodiment, the dynamic wave nozzle 6 is blocked, slurry is accumulated in the spray pipeline 5, the pressure transmitter 11 detects that the pressure in the feed pipe 3 exceeds a normal range, data is transmitted to the control system, the control system controls the first valve 16 to be closed, and simultaneously controls the first pneumatic valve 13 and the third valve 4 to be opened, the slurry flowing through the second valve 14 partially enters the return pipeline and flows back into the titanium tetrachloride tank 17 through the first pneumatic valve 13, and simultaneously the nitrogen tank 9 releases nitrogen, which enters the feed pipe 3 through the third valve 4 to purge the spray pipeline 5 and the dynamic wave nozzle 6, but as too much slurry is accumulated, the dynamic wave nozzle 6 cannot be dredged, the whole equipment of the chlorination furnace slurry return device is powered off, maintenance personnel are waited to dismantle and repair, and the accumulated slurry is discharged from the dredging hole 1.
It should be noted that the flow meter 10, the pressure transmitter 11, the centrifugal pump 15, etc., referred to in this application are prior art and therefore will not be described in detail in this application.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present invention, which shall all be covered by the present application.
Claims (9)
1. The utility model provides a chlorination furnace returns thick liquid device which characterized in that: including spray pipe (5) and power ripples shower nozzle (6), spray pipe (5) are connected with power ripples shower nozzle (6), power ripples shower nozzle (6) are located chlorination furnace (7), chlorination furnace (7) are provided with flue opening (8), the nozzle of power ripples shower nozzle (6) is flue opening (8) dorsad.
2. The chlorination furnace slurry returning device according to claim 1, wherein: the distance between the dynamic wave nozzle (6) and the flue opening (8) is 70-80 cm.
3. The chlorination furnace slurry returning device according to claim 1, wherein: one end of the spray pipe (5) far away from the dynamic wave nozzle (6) is provided with a dredging opening (1), a feeding opening (2) is formed in the pipe wall of the spray pipe (5), and the feeding opening (2) is connected with the feeding pipe (3).
4. The chlorination furnace slurry returning device according to claim 3, wherein: the included angle between the feeding pipe (3) and the spraying pipeline (5) is 45-135 degrees.
5. The chlorination furnace slurry returning device according to claim 3, wherein: the feed pipe (3) is communicated with a nitrogen pipeline, the nitrogen pipeline is connected with a third valve (4), and the third valve (4) is connected with a nitrogen tank (9).
6. The chlorination furnace slurry returning device according to claim 3, wherein: the device is characterized in that a flowmeter (10), a pressure transmitter (11), a second pneumatic valve (12), a second valve (14), a centrifugal pump (15) and a first valve (16) are sequentially arranged on the feeding pipe (3), the other end of the first valve (16) is connected with a titanium tetrachloride tank (17), and the first valve (16) is connected to the lower end of the titanium tetrachloride tank (17).
7. The chlorination furnace slurry returning device according to claim 6, wherein: the titanium tetrachloride tank (17) upper end is provided with return line, return line is provided with first pneumatic valve (13), the return line other end sets up between second valve (14) and second pneumatic valve (12).
8. A chlorination furnace slurry returning device according to any one of claims 5-7, characterized in that: and the third valve (4), the flowmeter (10), the pressure transmitter (11) and the first pneumatic valve (13) are all connected with a control system.
9. A chlorination furnace slurry return method adopting the chlorination furnace slurry return device of any one of claims 1-7, characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: opening a first valve (16), enabling slurry in a titanium tetrachloride tank (17) to sequentially flow through the first valve (16), a centrifugal pump (15), a second valve (14), a second pneumatic valve (12), a pressure transmitter (11), a flowmeter (10), a spraying pipeline (5) and a dynamic wave nozzle (6), spraying slurry spray from the dynamic wave nozzle (6) to the flue opening, covering the flue opening (8) with the slurry spray, and enabling dust particles in the titanium tetrachloride to wrap the slurry spray and flow to the flue opening (8);
step two: the flow meter (10) detects the flow rate of flowing through in real time, when the flow rate is too large, the flow meter (10) transmits data to the control system, the control system adjusts the first pneumatic valve (13), the first pneumatic valve (13) is opened, the opening degree of the first pneumatic valve (13) is adjusted, the first pneumatic valve (13) is enabled to shunt the flow rate of slurry flowing out of the second valve (14), until the flow rate detected by the flow meter (10) is normal, and the control system adjusts the first pneumatic valve (13) to stop changing; when the flow is small, the opening degree of the first pneumatic valve (13) is increased; when the flow rate is normal, the first pneumatic valve (13) is in a closed state.
Step three: the dynamic wave sprayer (6) finishes spraying, the flow meter (10) detects that the inflow is zero, data are transmitted to the control system, the control system controls the third valve (4) to be opened, the nitrogen tank (9) releases nitrogen to flow into the spraying pipeline (5) for the dynamic wave sprayer (6) is cooled, and residual mud in the spraying pipeline (5) and the dynamic wave sprayer (6) is swept, so that the spraying pipeline (5) and the dynamic wave sprayer (6) are prevented from being blocked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011265122.5A CN112408468A (en) | 2020-11-13 | 2020-11-13 | Slurry returning device and method for chlorination furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011265122.5A CN112408468A (en) | 2020-11-13 | 2020-11-13 | Slurry returning device and method for chlorination furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112408468A true CN112408468A (en) | 2021-02-26 |
Family
ID=74831090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011265122.5A Pending CN112408468A (en) | 2020-11-13 | 2020-11-13 | Slurry returning device and method for chlorination furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112408468A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115491521A (en) * | 2022-11-01 | 2022-12-20 | 云南国钛金属股份有限公司 | Waste molten salt treatment method and device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2458280Y (en) * | 2000-11-08 | 2001-11-07 | 锦州铁合金(集团)股份有限公司钛白粉厂 | Device for pumping titanium tetrachloride back into furnace |
| JP2004075419A (en) * | 2002-08-12 | 2004-03-11 | Toho Titanium Co Ltd | System for producing titanium tetrachloride |
| CN201501799U (en) * | 2009-08-18 | 2010-06-09 | 锦州钛业有限公司 | Spray atomizer of fused salt chlorinating furnace |
| CN203474481U (en) * | 2013-08-05 | 2014-03-12 | 河南龙兴钛业有限公司 | Slurry processing device applicable to titanium tetrachloride production process |
| CN107963653A (en) * | 2017-12-19 | 2018-04-27 | 锦州钛业股份有限公司 | A kind of gradient control method of fused salt chlorimation system temperature |
| CN111533164A (en) * | 2020-01-03 | 2020-08-14 | 中信钛业股份有限公司 | Vanadium removal method for titanium tetrachloride in boiling chlorination system |
| CN211770341U (en) * | 2019-12-11 | 2020-10-27 | 河南龙兴钛业科技股份有限公司 | Automatic furnace returning system for titanium tetrachloride slurry |
-
2020
- 2020-11-13 CN CN202011265122.5A patent/CN112408468A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2458280Y (en) * | 2000-11-08 | 2001-11-07 | 锦州铁合金(集团)股份有限公司钛白粉厂 | Device for pumping titanium tetrachloride back into furnace |
| JP2004075419A (en) * | 2002-08-12 | 2004-03-11 | Toho Titanium Co Ltd | System for producing titanium tetrachloride |
| CN201501799U (en) * | 2009-08-18 | 2010-06-09 | 锦州钛业有限公司 | Spray atomizer of fused salt chlorinating furnace |
| CN203474481U (en) * | 2013-08-05 | 2014-03-12 | 河南龙兴钛业有限公司 | Slurry processing device applicable to titanium tetrachloride production process |
| CN107963653A (en) * | 2017-12-19 | 2018-04-27 | 锦州钛业股份有限公司 | A kind of gradient control method of fused salt chlorimation system temperature |
| CN211770341U (en) * | 2019-12-11 | 2020-10-27 | 河南龙兴钛业科技股份有限公司 | Automatic furnace returning system for titanium tetrachloride slurry |
| CN111533164A (en) * | 2020-01-03 | 2020-08-14 | 中信钛业股份有限公司 | Vanadium removal method for titanium tetrachloride in boiling chlorination system |
Non-Patent Citations (1)
| Title |
|---|
| 李秋萍等: "" 喷淋洗涤塔、液柱塔及动力波洗涤器"", 《化工装备技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115491521A (en) * | 2022-11-01 | 2022-12-20 | 云南国钛金属股份有限公司 | Waste molten salt treatment method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201807473U (en) | Novel gas spray nozzle without gas resistance | |
| CN112408468A (en) | Slurry returning device and method for chlorination furnace | |
| CN203836609U (en) | Lime slurry conveying system | |
| CN102787191A (en) | System and process for pulverized coal injection of blast furnace | |
| CN104985186A (en) | Gas atomizing nozzle for preparing metal powder | |
| CN210855970U (en) | Ammonia water nozzle for cleaning, raw coke oven gas cooling and tar cleaning device | |
| CN214141610U (en) | Thick liquid device is returned to chlorination furnace | |
| CN110870960A (en) | Dry powder spraying system and elevating fire truck | |
| CN103964495A (en) | Large fluidizing chlorination furnace and gas distributor thereof | |
| CN202881301U (en) | Pulverized coal injection system of blast furnace | |
| CN103896334B (en) | Except the continuous feeding of scar sand and the Titanium Dioxide Produced by Chloride Procedure process units with it | |
| CN207296895U (en) | A kind of double buffering choke manifold | |
| CN215784214U (en) | Subsonic spraying device for resisting erosive wear of boiler of thermal power plant | |
| CN201586589U (en) | Intelligent high atomization water adding device | |
| CN211070589U (en) | Prevent polymeric kettle material wall built-up device | |
| CN209530576U (en) | A kind of interpolation type gas-liquid mixed Effuser device | |
| CN115505917A (en) | Tin plate chromium-free passivation device and process | |
| CN208895185U (en) | A kind of water atomizing nozzle | |
| CN207313153U (en) | A kind of calcium carbonate carbonators with circulating water | |
| CN106861963A (en) | Goods train anti-icing fluid spray equipment | |
| CN106895398B (en) | Oil return type mechanical steam atomization oil gun | |
| CN210584701U (en) | Prevent blockking up agitator tank | |
| CN216604762U (en) | Ammonia water flow adjusting device of cement kiln SCR denitration device | |
| CN219222384U (en) | Venturi temperature reducing device | |
| CN216779147U (en) | Slurry spraying mechanism for honeycomb ceramic carrier production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210226 |