CN106959023A - A kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system - Google Patents
A kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system Download PDFInfo
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- CN106959023A CN106959023A CN201710344685.5A CN201710344685A CN106959023A CN 106959023 A CN106959023 A CN 106959023A CN 201710344685 A CN201710344685 A CN 201710344685A CN 106959023 A CN106959023 A CN 106959023A
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- 239000007789 gas Substances 0.000 title claims abstract description 102
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 235000010215 titanium dioxide Nutrition 0.000 title claims abstract description 51
- 239000002918 waste heat Substances 0.000 title claims abstract description 32
- 235000013312 flour Nutrition 0.000 title claims abstract description 29
- 238000004064 recycling Methods 0.000 title claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 80
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 239000012043 crude product Substances 0.000 claims abstract description 13
- 239000008400 supply water Substances 0.000 claims abstract description 3
- 238000000926 separation method Methods 0.000 claims description 20
- 239000013589 supplement Substances 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 abstract description 17
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000000505 pernicious effect Effects 0.000 abstract description 11
- 238000011084 recovery Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 10
- 230000006872 improvement Effects 0.000 description 9
- 238000001816 cooling Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 239000000843 powder Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 238000001354 calcination Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000006477 desulfuration reaction Methods 0.000 description 3
- 230000023556 desulfurization Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000003020 moisturizing effect Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C3/00—Other direct-contact heat-exchange apparatus
- F28C3/06—Other direct-contact heat-exchange apparatus the heat-exchange media being a liquid and a gas or vapour
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
- F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
- F28F13/125—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation by stirring
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention discloses a kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system, belong to titanium dioxide manufacture field.A kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system of the present invention, including heat exchanger and liquid seal trough, also include hydraulic ejector, its inlet end is connected with heat exchanger, its water inlet end is connected with water circulating pump, its discharge ends is located in liquid seal trough, and connects flow-disturbing heat exchange mechanisms in discharge ends；Solution is used to supply water for crude product after being exchanged heat in liquid seal trough.The present invention will crush air-flow heat and carry out secondary recovery utilization, while eliminating pernicious gas therein, substantially increase energy utilization rate, reduce the pollution to environment, save production cost.
Description
Technical field
The present invention relates to titanium dioxide processing technique field, more specifically to a kind of titanium white flour flow design air-flow crushing
Tail gas secondary waste heat recycling system.
Background technology
Titanium dioxide is a kind of important Chinese white, main in industry manufacture to go out titanium dioxide (mainly with Production By Sulfuric Acid Process
Composition is titanium dioxide) crude product, the technique such as need in its preparation process to heat up, wash, afterwards by post processing, using different
The techniques such as coating, air-flow crushing are processed to titanium dioxide crude product, it is applied to different application fields.Air-flow crushing process
It is to crush the titanium dioxide through inorganic coating using high temperature middle pressure steam, in steam powder machine equipment, titanium dioxide is reached requirement
Fineness；And used high temperature middle pressure steam may be recovered utilization.The most of enterprise of the recycling first of waste heat has entered
OK, the gas temperature discharged after reclaiming first is between 100-110 DEG C, although this partial heat is relatively small, but wherein
Containing part pernicious gas, if be expelled directly out, a large amount of waste heats are not only resulted in and are wasted, contained dust and solvable in gas
Property pernicious gas also results in environmental pollution, it is necessary to which institute's discharge gas is further processed.
By the retrieval discovery to prior art, although powder when disclosed technology is not prepared directly about titanium dioxide at present
The technology of broken gas after-treatment, but other published schemes related to vent gas treatment are more, with certain reference.But
The problem of encountering more when specifically used.Air-flow energy content after reclaiming first is relatively fewer, recovery difficult compared with
Greatly, and pernicious gas therein is also removed simultaneously, technology difficulty is larger.
Chinese Patent Application No.：201120028758.8, the applying date：On January 27th, 2011, invention and created name is：One
Plant in heat recovering device for titanium white powder airflow grinding tail gas, including heat recovering tower, heat recovering tower and be provided with shell and tube heat exchanger tube,
Heat recovering tower is sequentially provided with industry water cooling zone, desalted water cooling zone and spray chamber from bottom to top, and shell and tube heat exchanger tube runs through
Provided with separation dividing plate between industry water cooling zone and desalted water cooling zone, industry water cooling zone and desalted water cooling zone.The party
Case heat recovering device for titanium white powder airflow grinding tail gas, it is compact to design, realized in an equipment two kinds of refrigerant heat exchangers and
The function of spray dust collector, installs occupation of land small；Meanwhile, the utilization rate of tail gas heat quantity is improved, heat energy about 57% is reclaimed.
Chinese Patent Application No.：201510979759.3, the applying date：On December 23rd, 2015, disclose a kind of titanium dioxide
The processing method of tail gas is calcined in production process, it includes step：1) dedusting；2) preliminary heat exchange, by the calcining tail after dedusting
Gas is discharged into Waste Heat System carries out heat exchange with process water, and calcining tail gas is tentatively cooled；3) heat exchange again, tentatively
Calcining tail gas after cooling enters in venturi system by the further cooling of Waste Sulfuric Acid spray；4) desulfurization；The titanium white of the program
The processing method that tail gas is calcined in powder production process employs the high Waste Heat System of heat recovery rate and by substep
Heat exchange, can efficiently reclaim the heat in calcining tail gas and be used for other processes of titanium white production line, greatly save energy consumption
And water consume, and make it that the desulfurization degree for calcining tail gas is significantly improved by desulfurization.
The content of the invention
1. the invention technical problem to be solved
It is an object of the invention to overcome the shortcomings of that titanium dioxide crushing air-flow heat recovery and utilization rate is low in the prior art, carries
A kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system is supplied, the present invention will crush air-flow heat and carry out
Secondary recovery is utilized, while eliminating pernicious gas therein, is substantially increased energy utilization rate, is reduced the dirt to environment
Dye, saves production cost.
2. technical scheme
To reach above-mentioned purpose, the technical scheme that the present invention is provided is：
The present invention a kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system, including heat exchanger and
Liquid seal trough, also including hydraulic ejector, its inlet end is connected with heat exchanger, and its water inlet end is connected with water circulating pump, its discharge ends
Flow-disturbing heat exchange mechanisms are connected in liquid seal trough, and in discharge ends；Solution is used to supply water for crude product after being exchanged heat in liquid seal trough.
As further improvement of the present invention, water supplement port is provided with above described liquid seal trough, and pass through moisturizing control
Valve control current enter.
As further improvement of the present invention, closed above the liquid seal trough, and be provided with blast pipe；At liquid seal trough bottom
Portion is connected with draining pump.
As further improvement of the present invention, the flow-disturbing heat exchange mechanisms are main by outer flow-disturbing room and interior flow-disturbing room group
Into outer flow-disturbing room is connected with the outlet pipe on hydraulic ejector；The interior flow-disturbing room is connected with outer flow-disturbing room, interior flow-disturbing room bottom
Liquid seal trough is connected to by water pipe.
As further improvement of the present invention, spout hole is provided with above the outer flow-disturbing room.
As further improvement of the present invention, the outer flow-disturbing room is back taper.
As further improvement of the present invention, the outer flow-disturbing ceiling end is connected with wireway, the outlet of the wireway
Mouth stretches into fluid-tight trench bottom.
As further improvement of the present invention, in use, the liquid level face in liquid seal trough is less than outer flow-disturbing room upper surface.
As further improvement of the present invention, the outer flow-disturbing room upper surface is provided with the aqueous vapor separation for exhaust
Room, the air inlet of wireway is connected with aqueous vapor separation chamber.
As further improvement of the present invention, gas port and aqueous vapor point that the outer flow-disturbing room is arranged by its upper surface
From room connection.
3. beneficial effect
The technical scheme provided using the present invention, compared with prior art, is had the advantages that：
(1) a kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system of the invention, by heat exchanger
The gas of discharge is mixed with circulation aqueous, and the aqueous after heat exchange is produced for titanium dioxide crude product, is there is heat
Effect is utilized, and can effectively remove the pernicious gas in tail gas, is substantially increased energy utilization rate, is reduced the dirt to environment
Dye, saves production cost；
(2) a kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system of the invention, outer flow-disturbing room
Back taper can be set to, interior flow-disturbing room is up big and down small truncated conical shape, and the blending agent quickly flowed enters behind outer flow-disturbing room,
Volume becomes big, and the direction of motion is changed, and easily forms eddy flow, so that allowing increases the disturbance of current and air-flow, makes both phases
Mutually mixing, increase heat exchange area and time of contact, so that heat exchange is more fully, enable amount is fully used；
(3) a kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system of the invention, set water
Gas separation chamber is that aqueous vapor separation can be achieved, when in the liquid that gas is again introduced into liquid seal trough by wireway, equivalent to again
It is secondary to have carried out gas-liquid mixed, so that the effect of multiple vent gas treatment is realized, it is more abundant to the absorption cleaning of tail gas.
Brief description of the drawings
Fig. 1 is system structure diagram of the invention；
Fig. 2 carries the flow-disturbing heat exchange mechanisms structural representation of spout hole for the present invention；
Fig. 3 carries the flow-disturbing heat exchange mechanisms structural representation of wireway for the present invention；
Fig. 4 carries the flow-disturbing heat exchange mechanisms structural representation of aqueous vapor separation chamber for the present invention.
Label declaration in schematic diagram：1st, hydraulic ejector；2nd, heat exchanger；3rd, outlet pipe；4th, liquid seal trough；5th, draining pump；
6th, water circulating pump；61st, circulating water pipe；7th, water control valve is mended；8th, flow-disturbing heat exchange mechanisms；81st, wireway；82nd, outer flow-disturbing room；83、
Interior flow-disturbing room；84th, spout hole；85th, aqueous vapor separation chamber；9th, blast pipe.
Embodiment
To further appreciate that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
With reference to Fig. 1, a kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system of the present embodiment is main
To be made up of heat exchanger 2, liquid seal trough 4 and hydraulic ejector 1, its inlet end is connected with heat exchanger 2, its water inlet end and water circulating pump
6 connections, its discharge ends are located in liquid seal trough 4, and in discharge ends connection flow-disturbing heat exchange mechanisms 8；Solution is used after being exchanged heat in liquid seal trough 4
Supplied water in for crude product.
Heat exchanger 2 is the heat exchange element generally used at present, and being mainly used in exchanging heat first using the device uses, due to original
Heat entrained by beginning crushing air-flow is larger, can directly be exchanged heat by heat exchanger.When heat-exchange temperature reaches 100 DEG C or so
When, it is difficult to which after-heat is recycled by heat exchanger again.
Due to containing part pernicious gas in residual exhaust, partial devices can usually be carried out after heat absorption to tail gas
Spray process, is removed pernicious gas therein, but during the spray, after-heat will scatter and disappear, it is impossible to reclaim profit
With.And the tail gas that heat exchanger 2 is discharged is led to liquid seal trough 4 by the present embodiment, water-jet is passed through between heat exchanger 2 and liquid seal trough 4
Device 1 is connected, and the water inlet end of hydraulic ejector 1 is connected with water circulating pump 6, i.e., the porch of hydraulic ejector 1 is passed through circulation simultaneously
2 emissions of water and heat exchanger, both carry out gas and fully contacted with recirculated water, so as to realize the exchange of heat.
The water inlet of involved water circulating pump 6 is connected with liquid seal trough 4 in the present embodiment, it is preferable that can be arranged on
The bottom of liquid seal trough 4；The delivery port of water circulating pump 6 is connected by circulating water pipe 61 with the water inlet end of hydraulic ejector 1, then can be realized
Aqueous is circulated in liquid seal trough 4, it is constantly absorbed the heat in tail gas, so as to realize the secondary recovery profit of tail gas
With.
Titanium white flour flow design air-flow crushing tail gas is after the processing of heat exchange first, the powder that is mingled with tail gas and harmful
Gas is difficult to be removed, and when carrying out secondary heat recovery using hydraulic ejector 1, Tail Gas will be absorbed into circulation
In water, although the recirculated water is with certain heat, due to there is harmful substance, other aspects can not be used to.
Aqueous in the present embodiment in liquid seal trough 4 can use sand filter water, and the aqueous after heat exchange directly supplies titanium dioxide crude product
Processing is used.When carrying out the processing of titanium dioxide crude product, if using 60 DEG C or so of water, reaction effect can be greatly improved
Rate, prepares properties of product preferably, and due to being to be utilized again in the preparation of titanium dioxide, gas is harmful in recirculated water while solving
The harm problem of body.
And by controlling recirculated water circulation time in the present embodiment, be fully able to reach the temperature transition of recirculated water extremely
It is required that the purpose of temperature, meets production and application demand.That is, on the one hand the present embodiment can carry out waste heat reclaiming profit
With, moreover it is possible to pernicious gas present in tail gas is removed, and heat exchange Posterior circle water can be used for the processing of titanium dioxide crude product, heat
And pernicious gas can be utilized effectively, zero-emission can be regarded as, production cost is greatly reduced.
In use, temperature-detecting device can be set in liquid seal trough 4, circulating water temperature after heat exchange reaches requirement
Afterwards, aqueous can be discharged through the draining pump 5 of the bottom of liquid seal trough 4, is used for crude product processing.Then aqueous, temperature are filled into again
Current Temperatures are detected, heat exchange is started the cycle over.
Although above-mentioned heat realizes the secondary utilization of energy, need just make aqueous by repeatedly heat exchange
Temperature is significantly improved, and in order to improve energy transmission conversion, the discharge ends of hydraulic ejector 1 are provided with flow-disturbing heat exchange mechanisms 8.Disturb
The main function of stream heat exchange mechanisms 8 is tail gas is fully contacted with circulation aqueous, both is had larger contact area, real
The abundant conversion of existing heat.
In order to reach the purpose, the flow-disturbing heat exchange mechanisms 8 used can be the structures such as spiral outlet pipe, shower, one
Aspect makes the contact area of both increases, on the other hand can extend contact time, so that heat conversion is more abundant.
Embodiment 2
A kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system of the present embodiment, its basic structure
Same as Example 1, its difference is：The present embodiment is provided with water supplement port in the top of liquid seal trough 4, and passes through moisturizing control
The control current of valve 7 enter.
Preferably, liquid level gauge can be set in liquid seal trough 4, when liquid level is less than arranges value, automatic controlled water replanishing control
Valve 7 is opened, the moisturizing into liquid seal trough；After water level reaches setting, control is mended water control valve 7 and closed, by the water in liquid seal trough
It is circulated, absorbs the heat in tail gas.
The top of liquid seal trough 4 is closed, and is provided with blast pipe 9, and the tail gas concentration after energy is absorbed is discharged from blast pipe 9,
Because the pernicious gas in tail gas is absorbed, the tail gas can be discharged directly, not result in air pollution.
Embodiment 3
A kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system of the present embodiment, its basic structure
Same as Example 2, its difference is：Flow-disturbing heat exchange mechanisms 8 are main by outer flow-disturbing room 82 and interior flow-disturbing in the present embodiment
Room 83 is constituted, and outer flow-disturbing room 82 is connected with the outlet pipe 3 on hydraulic ejector 1, its mixing that makes that hydraulic ejector 1 flows out is situated between
Matter enters outer flow-disturbing room 82.Set interior flow-disturbing room 83 is connected with outer flow-disturbing room 82, the interior open top of flow-disturbing room 83, interior flow-disturbing room
83 bottoms are connected to liquid seal trough 4 by water pipe, then the aqueous in outer flow-disturbing room 82 can enter liquid seal trough by interior flow-disturbing room 83
4, circulated so as to realize, heat is constantly absorbed from tail gas.
Due to being mixed with current and air-flow in hydraulic ejector 1, flow velocity is very fast, and discharge, time of contact are touched from both
Shorter, it is difficult to be fully absorbed heat, therefore, the main purpose of set outer flow-disturbing room 82 and interior flow-disturbing room 83 is that increase is changed
Hot area and time of contact, so that heat exchange is more fully, enable amount is fully used.
Outer flow-disturbing room 82 in the present embodiment can be set to back taper, i.e., up big and down small, not limited specifically for its shape
System, can be circle.Similarly, interior flow-disturbing room 83 is up big and down small truncated conical shape.The blending agent quickly flowed enters outer
Behind flow-disturbing room 82, volume becomes big, and the direction of motion is changed, and easily forms eddy flow, so as to allow the disturbing of increase current and air-flow
It is dynamic, it is mutually mixed both.
Gas in outer flow-disturbing room 82 can be discharged from top, and liquid is disturbed by the interior top entry of flow-disturbing room 83 in
Flow chamber 83, due to the presence of pressure, is enabled its flow into liquid seal trough 4.Enter by outer flow-disturbing room 82 during interior flow-disturbing room, current
Realize that deflecting is flowed, disturbed again, be not only able to make both contact more fully, effective time of contact is longer, fully real
The disturbance of existing current.
Embodiment 4
With reference to Fig. 2, a kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system of the present embodiment, its
Basic structure is same as Example 3, and its difference is：The outer top of flow-disturbing room 82 is provided with spout hole 84, the spout hole
84 can be distributed along the outer sidewall spacers of flow-disturbing room 82.Further, spout hole 84 can also be set at the outer top of flow-disturbing room 82.
Medium into outer flow-disturbing room 82 includes gas and liquid, can completely enclose the outer top of flow-disturbing room 82, due to
Produced pressure effect, gas-liquid mixed media is separated after the discharge of liquid seal trough 4.But by analysis, in blending agent by disturbing
When flowing heat exchange mechanisms 8, because flow-disturbing acts on larger, gas is concentrated at the top of outer flow-disturbing room 82 mostly, and set overflow
Hole 84 contributes to gas to be discharged in liquid seal trough 4, and then can be discharged by blast pipe 9.
Embodiment 5
With reference to Fig. 3, a kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system of the present embodiment, its
Basic structure is same as Example 3, and its difference is：Spout hole 84 is not provided with the present embodiment, but in outer flow-disturbing
The top of room 82 is connected with wireway 81, and the bottom of liquid seal trough 4 is stretched into the gas outlet of the wireway 81.
Gas after separation is contacted with liquid in liquid seal trough 4 again by wireway 81, can reach cleaning of off-gas again
Effect.And the bottom of liquid seal trough 4 is stretched into the gas outlet of wireway 81, contributes to the disturbance of bottom liquid, make circulation fluid distribution more
Uniformly.
Embodiment 6
With reference to Fig. 4, a kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system of the present embodiment, its
Basic structure is same as Example 5, and its difference is：In use, the liquid level face in liquid seal trough 4 is less than on outer flow-disturbing room 82
Surface, because external and internal pressure is poor, the liquid gushed out from outer flow-disturbing room 82 will not excessively high on gush.The outer upper surface of flow-disturbing room 82 is set
There is the aqueous vapor separation chamber 85 for exhaust, the air inlet of wireway 81 is connected with aqueous vapor separation chamber 85.
Due to gushing limited height on liquid, the separated gas of flow-disturbing is concentrated in aqueous vapor separation chamber 85, Jin Eryou
Wireway 81 is discharged.In embodiment 5, if water velocity is larger, it is easy to cause wireway 81 to be blocked, gas-liquid is from leading
Tracheae 81 circulates, and gas liquid separating function is not obvious.
It should be noted that, although gas is mixed into after liquid seal trough with liquid it is then exhausted from that gas-liquid separation, gas can be realized
Body is again introduced into liquid seal trough and separated after directly being separated in aqueous vapor separation chamber 85 with liquid can also realize gas-liquid separation, but two
Person's effect is simultaneously differed.Gas-liquid is mixed all the time in first way, and gas is likely to form in any case with current
Viscous effect, both are difficult to carry out mutually fusion again and absorbed, and the harmful substance in gas is difficult to complete removal.And the second way
Lower gas realizes aqueous vapor separation in aqueous vapor separation chamber 85, is again introduced into the liquid in liquid seal trough by wireway 81 when gas
When middle, equivalent to gas-liquid mixed has been carried out again, so as to realize the effect of multiple vent gas treatment, the absorption cleaning of tail gas is more filled
Point.
Further, the gas port that the outer flow-disturbing room 82 in the present embodiment can be arranged by its upper surface is separated with aqueous vapor
Room 85 is connected.Outer flow-disturbing room 82 can directly connect with the connection of aqueous vapor separation chamber 85, but this mode may also have aqueous
Block wireway, it is preferable that the outer upper surface of flow-disturbing room 82 set gas port, gas port can water conservancy diversion, non-interconnected position is to water
Stream also has certain suppression, so as to effectively realize that aqueous vapor is separated.
Embodiment 7
For the titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system in above scheme, the present embodiment
There is provided a kind of secondary waste heat recoverying and utilizing method of titanium white flour flow design air-flow crushing tail gas, its process is：
Step one：Open and mend water control valve 7, supplied water to liquid seal trough 4, reach setting water level；
Step 2：ON cycle water pump 6 supplies water to hydraulic ejector 1, controls water velocity；
Step 3：The air-flow opened in the intake valve of hydraulic ejector 1, heat exchanger 2 enters hydraulic ejector 1；
Step 4：Gas-vapor mix medium enters flow-disturbing heat exchange mechanisms 8 through outlet pipe 3, and is ultimately discharged into liquid seal trough 4,
Form circulation；
Step 5：Fluid temperature is detected using temperature-detecting device, after design temperature is reached, from draining pump to titanium dioxide
Crude product supplies water；
Step 6：Water level is less than after setting value, mends water control valve 7 and opens, is supplied water again into liquid seal trough 4, temperature detection
Device detects fluid temperature less than setting value, stops draining, carries out next round cycle heat exchange.
Specifically, using such scheme as guidance, practical operation is as follows：
Step one：Open and mend water control valve 7, supplied water to liquid seal trough 4, reach setting water level, setting aqueous position 60m3；
Because generic container bottom area is certain, therefore its liquid level can be represented with volume.
Step 2：ON cycle water pump 6 supplies water to hydraulic ejector 1, control water velocity 100m3/h；
Step 3：The air-flow opened in the intake valve of hydraulic ejector 1, heat exchanger 2 enters hydraulic ejector 1；
Step 4：Gas-vapor mix medium enters flow-disturbing heat exchange mechanisms 8 through outlet pipe 3, and is ultimately discharged into liquid seal trough 4,
Form circulation；
Step 5：Fluid temperature is detected using temperature-detecting device, after 50 DEG C of design temperature is reached, from draining pump to titanium
White powder crude product supplies water；General inflow temperature, by repeatedly circulation, can be warming up to 50 in about 30 minutes in the range of 20~25 DEG C
℃。
Step 6：Water level is less than setting value 30m3Afterwards, mend water control valve 7 to open, supplied water again into liquid seal trough 4, due to
Filling into for aqueous, water temperature reduction are cooled down, temperature-detecting device detects fluid temperature less than after 50 DEG C of setting value, stops draining,
Carry out next round cycle heat exchange.
Schematical above that the present invention and embodiments thereof are described, the description does not have restricted, institute in accompanying drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if the common skill of this area
Art personnel enlightened by it, in the case where not departing from the invention objective, is designed and the technical scheme without creative
Similar frame mode and embodiment, all should belong to protection scope of the present invention.
Claims (10)
1. a kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system, including heat exchanger (2) and liquid seal trough
(4), it is characterised in that：Also include hydraulic ejector (1), its inlet end is connected with heat exchanger (2), its water inlet end and water circulating pump
(6) connect, its discharge ends is located in liquid seal trough (4), and in discharge ends connection flow-disturbing heat exchange mechanisms (8)；Exchanged heat in liquid seal trough (4)
Solution is used to supply water for crude product afterwards.
2. a kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system according to claim 1, its
It is characterised by：Water supplement port is provided with above described liquid seal trough (4), and controls current to enter by mending water control valve (7).
3. a kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system according to claim 1, its
It is characterised by：Closed above the liquid seal trough (4), and be provided with blast pipe (9)；Draining pump is connected with liquid seal trough (4) bottom
(5)。
4. a kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system according to claim 1, its
It is characterised by：The flow-disturbing heat exchange mechanisms (8) are mainly made up of outer flow-disturbing room (82) and interior flow-disturbing room (83), outer flow-disturbing room (82)
Connected with the outlet pipe (3) on hydraulic ejector (1)；The interior flow-disturbing room (83) connects with outer flow-disturbing room (82), interior flow-disturbing room
(83) bottom is connected to liquid seal trough (4) by water pipe.
5. a kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system according to claim 4, its
It is characterised by：Spout hole (84) is provided with above the outer flow-disturbing room (82).
6. a kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system according to claim 4, its
It is characterised by：The outer flow-disturbing room (82) is back taper.
7. a kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system according to claim 4, its
It is characterised by：Outer flow-disturbing room (82) top is connected with wireway (81), and liquid seal trough is stretched into the gas outlet of the wireway (81)
(4) bottom.
8. a kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system according to claim 4, its
It is characterised by：In use, the liquid level face in liquid seal trough (4) is less than outer flow-disturbing room (82) upper surface.
9. a kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system according to claim 8, its
It is characterised by：Outer flow-disturbing room (82) upper surface is provided with the aqueous vapor separation chamber (85) for exhaust, and wireway (81) are entered
Gas port is connected with aqueous vapor separation chamber (85).
10. a kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system according to claim 9, its
It is characterised by：The gas port that the outer flow-disturbing room (82) is arranged by its upper surface is connected with aqueous vapor separation chamber (85).
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|---|---|---|---|
| CN201710344685.5A CN106959023B (en) | 2017-05-16 | 2017-05-16 | Titanium white powder aftertreatment jet milling tail gas secondary waste heat recovery utilizes system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710344685.5A CN106959023B (en) | 2017-05-16 | 2017-05-16 | Titanium white powder aftertreatment jet milling tail gas secondary waste heat recovery utilizes system |
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| CN106959023B CN106959023B (en) | 2020-02-07 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2101079C1 (en) * | 1995-10-10 | 1998-01-10 | Евгений Петрович Тимохов | Reactor |
| US20140166211A1 (en) * | 2012-12-14 | 2014-06-19 | Heartland Technology Partners Llc | Liquid Evaporation System with Heated Liquid |
| CN204154144U (en) * | 2014-09-17 | 2015-02-11 | 河北玉星生物工程有限公司 | A kind of fermentation tank vapour-recovery unit |
| CN206739921U (en) * | 2017-05-16 | 2017-12-12 | 安徽金星钛白（集团）有限公司 | A kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system |
-
2017
- 2017-05-16 CN CN201710344685.5A patent/CN106959023B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2101079C1 (en) * | 1995-10-10 | 1998-01-10 | Евгений Петрович Тимохов | Reactor |
| US20140166211A1 (en) * | 2012-12-14 | 2014-06-19 | Heartland Technology Partners Llc | Liquid Evaporation System with Heated Liquid |
| CN204154144U (en) * | 2014-09-17 | 2015-02-11 | 河北玉星生物工程有限公司 | A kind of fermentation tank vapour-recovery unit |
| CN206739921U (en) * | 2017-05-16 | 2017-12-12 | 安徽金星钛白（集团）有限公司 | A kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system |
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| CN106959023B (en) | 2020-02-07 |
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Denomination of invention: A secondary waste heat recovery and utilization system for titanium dioxide post-treatment airflow crushing tail gas Effective date of registration: 20210924 Granted publication date: 20200207 Pledgee: China Co. truction Bank Corp Ma'anshan branch Pledgor: ANHUI VENUS TITANIUM DIOXIDE (Group) Co.,Ltd. Registration number: Y2021980009723 |
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Date of cancellation: 20221024 Granted publication date: 20200207 Pledgee: China Co. truction Bank Corp Ma'anshan branch Pledgor: Anhui Venus Titanium Dioxide (Group) Co.,Ltd. Registration number: Y2021980009723 |
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