CN108889238A - Liquid magnesium chloride granulating device and residual neat recovering system and method - Google Patents
Liquid magnesium chloride granulating device and residual neat recovering system and method Download PDFInfo
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- CN108889238A CN108889238A CN201810716547.XA CN201810716547A CN108889238A CN 108889238 A CN108889238 A CN 108889238A CN 201810716547 A CN201810716547 A CN 201810716547A CN 108889238 A CN108889238 A CN 108889238A
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- magnesium chloride
- liquid magnesium
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- flow controller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0045—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for granular materials
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Abstract
The present invention relates to liquid magnesium chloride granulating device and residual neat recovering system and methods.Liquid magnesium chloride granulating device includes the driver that granulator and driving granulator rotate and carry out centrifugal granulation, and liquid magnesium chloride can be broken into spherical little particle, convenient for reducing remaining recuperation of heat difficulty, improves the added value of product of magnesium chloride.Residual neat recovering system includes collector, flow controller, cooling device, above-mentioned granulating device, waste heat boiler.In exhaust heat recovering method; liquid magnesium chloride due to centrifugal force fly out granulator and towards the cooling cavity wall of cooling device move; become magnesium chloride spheric granules, magnesium chloride spheric granules is encountered to move downward after the inner wall of cooling chamber to exchange heat with cold air, and hot-air enters waste heat boiler.The waste heat that the liquid magnesium chloride residual neat recovering system and method can be realized liquid magnesium chloride recycles and improves the added value of product of magnesium chloride.
Description
Technical field
The present invention relates to liquid magnesium chloride granulating device and residual neat recovering system and methods.
Background technique
Magnesium-reduced-vacuum distillation method production titanium sponge is occupied an leading position in the industrialized production of titanium sponge, and this method is
With Mg and TiCl4As raw material, reduction reaction is carried out at a high temperature of 800~1000 DEG C and generates titanium sponge, while also being generated
MgCl2.Due to liquid MgCl2Density be greater than the density of liquid Mg, in reacting furnace, liquid MgCl2Most in reacting furnace
Bottom.In reduction process, the MgCl of liquid2At interval of certain time pressurized discharge reacting furnace to vacate reaction compartment.
MgCl2Fusing point be 714 DEG C, from reacting furnace be discharged when temperature be 820~890 DEG C.Currently, liquid MgCl2Main processing
Mode is that pressurization discharge enters directly into open collecting tank in furnace, then carries out natural cooling in air.It is raw to titanium sponge
For producing enterprise, chlorination MAG block after cooling is for sale as product.MgCl2Have in fields such as chemical industry, medicine, building materials wide
General purposes can cook food additives, protein coagulation agent, deicing salt, refrigerant, dust-proofing agent, refractory material etc..
However, at present to liquid MgCl during titanium sponge reduction2Processing method result in a large amount of latent heat and sensible heat not
It is recycled.Although the initial stage temperature of Blocky chlorinated magnesium is higher, since its internal thermal coefficient is smaller, it is carried out remaining
Recuperation of heat difficulty is larger.Irony collecting tank surface layer is easy to happen oxidation, and then pollutes the outer surface of chlorination MAG block, MgCl2At
Product rate is lower, causes the waste of resource.In addition, the price of spherical magnesium chloride is apparently higher than bulk on magnesium chloride selling market
The price of magnesium chloride, and to obtain Blocky chlorinated magnesium price the cheapest for current method.In addition to this, difference depending on the application,
It needs to MgCl2Product is crushed, and crushing device also expends certain electric energy.
Summary of the invention
(1) technical problems to be solved
It is an object of the present invention to provide a kind of liquid magnesium chloride granulating devices, can be broken into liquid magnesium chloride
Spherical little particle convenient for reducing remaining recuperation of heat difficulty, and improves the added value of product of magnesium chloride.
It is recycled it is another object of the present invention to provide the waste heat that can be realized liquid magnesium chloride while can be improved chlorine
Change the liquid magnesium chloride residual neat recovering system and method for the added value of product of magnesium.
(2) technical solution
One aspect of the present invention provides a kind of liquid magnesium chloride granulating device, including granulator, connect to drive with granulator
It rotates and carries out the driver of centrifugal granulation and the first protective cover positioned at the outside of driver.
According to the present invention, further include：Air injection equipment, air injection equipment include that at least one is exported towards the granulate of granulator
The spout of the magnesium chloride drop jet to fly out.
According to the present invention, air injection equipment further includes annular gas pipe, annular gas pipe be looped around the outside of granulator and with granulation
The outer wall interval of device forms gap；Multiple spouts are uniformly distributed on annular gas pipe along the rotation axis of granulator, and and ring
The inside of shape tracheae is connected to.
According to the present invention, further include：Second protective cover, the second protective cover are connect with annular gas pipe, and are located at granulator
The outside of the part connected between driver, the inside of the second protective cover and gap area；Cooling air jet pipe, cooling air jet pipe
The inside for protruding into the second protective cover, for cooling down to the part connected between granulator and driver.
According to the present invention, it is connected with first flange in granulator, second flange, first flange and are connected on driver
Two flanged joints, and sandwiched mat insulation between, driver pass through the connection and granulation of first flange and second flange
Device connection.Another aspect of the present invention provides a kind of residual neat recovering system of titanium sponge liquid magnesium chloride produced during the preparation process,
Including any of the above-described liquid magnesium chloride granulating device：It further include the liquid chlorine that the reacting furnace discharge of titanium sponge is prepared for reception
Change the collector of magnesium, the bottom of collector is equipped with collector discharge port and controls the collector discharging of the aperture of collector discharge port
Mouth control valve；For receiving the flow controller of the liquid magnesium chloride of collector discharge, the bottom of flow controller is equipped with flow
The flow controller discharge port control valve of controller discharge port and control flow controller discharge port aperture；Cooling device, it is cooling
There is cooling chamber in device, be communicated with cold wind import and cooling chamber discharge port in the bottom of cooling chamber, cold wind import is higher than cooling
Chamber discharge port is communicated with hot-blast outlet at the top of cooling chamber；And the waste heat boiler being connected to hot-blast outlet, wherein liquid
Magnesium chloride granulating device is set in cooling chamber, and flow controller discharge port protrudes into the entrance in cooling chamber and being directed at granulator.
According to the present invention, collector can be aligned with the outlet of the liquid magnesium chloride of reacting furnace to receive liquid magnesium chloride
It collects position and is placed on flow controller and can be injected into flow controller between the unloading position of liquid magnesium chloride
It is mobile.
According to the present invention, four lifting lugs being evenly arranged in the surrounding of collector, each lifting lug is respectively connected with day car lifting rope,
Collector can be moved by being suspended between collection position and unloading position for overhead traveling crane.
According to the present invention, cooling chamber from top to bottom includes granulation chamber, adapter cavity and the heat exchanging chamber being sequentially communicated；Granulator position
In granulation chamber, hot-blast outlet is connected to granulation chamber；The inner wall of adapter cavity from top to bottom slopes inwardly；Cold wind import and cooling chamber
Discharge port is connected to heat exchanging chamber.
According to the present invention, the bottom of heat exchanging chamber is tapered, and cooling chamber discharge outlet is equipped with the cooling chamber discharging for controlling its aperture
Mouth control valve.
According to the present invention, collector is made of stainless steel, and the bottom of the collecting chamber of collector is tapered, the outer wall packet of collector
Wrap up in insulating layer；The bottom of the flow control chamber of flow controller is tapered, and the outer wall of flow controller wraps up insulating layer；Cooling device
Outer wall wraps up insulating layer；Protective cover is fixed on the outside of driver.
According to the present invention, the hot air intake of waste heat boiler is connected to by hot air duct with hot-blast outlet；Waste heat boiler it is cold
Gas outlet is connected to by cold air duct with the bottom of cooling chamber.
The present invention provide it is a kind of using any of the above-described residual neat recovering system to titanium sponge liquid produced during the preparation process
The method that magnesium chloride carries out waste heat recycling, including：S1, collector receive the liquid magnesium chloride of reacting furnace discharge；S2, collector to
Liquid magnesium chloride is discharged in flow controller, and flow controller receives the liquid magnesium chloride of collector discharge and is injected into granulator
In, wherein the aperture of flow controller discharge port is controlled to control liquid magnesium chloride by flow controller discharge port control valve
Into the speed of granulator；S3, flown due to the effect of centrifugal force by the liquid magnesium chloride in the granulator of driver driving rotation
Out granulator and towards the inner wall of cooling chamber move, liquid magnesium chloride becomes magnesium chloride spheric granules in the process；S4, chlorination
Magnesium spheric granules is encountered to move downward after the inner wall of cooling chamber to exchange heat with the cold air for entering cooling chamber from cold wind import, after cooling
Magnesium chloride spheric granules cooling device is discharged from cooling chamber discharge port, hot-air escapes and enter waste heat boiler from hot-blast outlet
It exchanges heat.
(3) beneficial effect
Liquid magnesium chloride can be granulated into spheric granules by liquid magnesium chloride granulating device of the invention, improve magnesium chloride
Added value of product.Meanwhile spheric granules increases heat exchange area, reduces the latent heat of liquid magnesium chloride and returning for high temperature sensible heat
It receives and utilizes difficulty, and then the operation cost of enterprise can be reduced, enhance enterprise competitiveness.
In residual neat recovering system of the invention and the method using the progress waste heat recycling of above-mentioned residual neat recovering system, equal energy
It is enough that liquid magnesium chloride is granulated into spheric granules, improve the added value of product of magnesium chloride.Meanwhile cooling device and waste heat are set
Boiler increases heat exchange area in conjunction with spheric granules, so that the latent heat of liquid magnesium chloride and high temperature sensible heat are recycled,
The operation cost of enterprise is significantly reduced, enterprise competitiveness is enhanced.
Detailed description of the invention
Fig. 1 is titanium sponge liquid chlorination produced during the preparation process provided by sponge titanium reaction furnace and specific embodiment
Structural schematic diagram when the collector cooperation of magnesium residual neat recovering system, wherein collector, which is located at, collects position, liquid magnesium chloride grain
Makeup sets part and has carried out simplified signal；
Fig. 2 is titanium sponge liquid magnesium chloride residual neat recovering system produced during the preparation process provided by specific embodiment
Structural schematic diagram, wherein collector is located at unloading position, and liquid magnesium chloride granulating device part has carried out simplified signal；
Fig. 3 is titanium sponge liquid magnesium chloride residual neat recovering system produced during the preparation process provided by specific embodiment
Used in liquid magnesium chloride granulating device internal structure schematic front view；
Fig. 4 is the schematic top plan view of liquid magnesium chloride granulating device shown in Fig. 3；
Fig. 5 is that liquid magnesium chloride granulating device shown in Fig. 3 is mounted on the schematic diagram inside cooling device；
Fig. 6 is that liquid magnesium chloride granulating device shown in Fig. 3 removes the internal structure main view after granulator and driver
Schematic diagram；
Fig. 7 is the schematic top plan view of the liquid magnesium chloride granulating device after the removal granulator in Fig. 6；
Fig. 8 is that the first is connected with the front sectional view of the granulator of first flange；
Fig. 9 is the front sectional view of second of granulator for being connected with first flange；
Figure 10 is that the third is connected with the front sectional view of the granulator of first flange；
Figure 11 is the front sectional view of the 4th kind of granulator for being connected with first flange；
Figure 12 is the schematic top plan view of the granulator for being connected with first flange in Figure 11；
Figure 13 is the front sectional view of the 5th kind of granulator for being connected with first flange；
Figure 14 is the schematic top plan view of the granulator for being connected with first flange in Figure 13；
Figure 15 is the front sectional view of the 6th kind of granulator for being connected with first flange；
Figure 16 is the front sectional view of the 7th kind of granulator for being connected with first flange.
【Description of symbols】
A：Reacting furnace；a：Liquid magnesium；b：Titanium sponge sticks together；c：Liquid magnesium chloride；1：Collector insulating layer；2：Collector；3：
Collector discharge port control valve；4：Overhead traveling crane lifting rope；5：Flow controller insulating layer；6：Flow controller；7：Flow controller goes out
Material mouth control valve；8：Flow controller discharge port；9：Cooling device insulating layer；10：Granulator；11：First protective cover；12：It drives
Dynamic device；13：Cooling device；14：It is granulated chamber；15：Adapter cavity；16：Heat exchanging chamber；17：Cold wind import；18：Cooling chamber discharge port control
Valve processed；19：Cold air duct；20：Air blower；21：Hot air duct；22：Waste heat boiler；23：Residual heat using device；24：Gap；
25：Annular gas pipe；26：Air inlet pipe；27：Second protective cover；28：Second flange；29：Mat insulation；30：First flange；31：It is cooling
Gas blowout pipe；32：Spout.
Specific embodiment
In order to preferably explain the present invention, in order to understand, with reference to the accompanying drawing, by specific embodiment, to this hair
It is bright to be described in detail.The term positions such as "top" mentioned by this paper, "bottom" are orientated reference with Fig. 1, Fig. 2, Fig. 4, Fig. 6's.
Referring to Figures 1 and 2, a kind of titanium sponge liquid magnesium chloride waste heat produced during the preparation process time is provided in the present embodiment
Receipts system, the residual neat recovering system include collector 2, flow controller 6, cooling device 13, liquid magnesium chloride granulating device and
Waste heat boiler 22.
In titanium sponge preparation process, it is used to prepare in the reacting furnace A of titanium sponge and contains TiCl4, liquid magnesium a, titanium sponge
Stick together b, liquid magnesium chloride c.Reacting furnace A is discharged from the top of reacting furnace A by pipeline in liquid magnesium chloride c in reacting furnace A, collects
Device 2 is located at the lower section of pipeline, and collector 2 has collector feed inlet, the outlet of the collector feed inlet align with tube, to receive
The liquid magnesium chloride of reacting furnace A discharge.The bottom of collector 2 is equipped with collector discharge port and collector discharge port control valve 3, receives
Storage discharge port is used for the liquid magnesium chloride being discharged in collector 2, and collector discharge port control valve 3 is for controlling collector discharging
The aperture of mouth can also determine the uninterrupted of discharge at least to decide whether that liquid magnesium chloride is discharged in the present embodiment.
The top of flow controller 6 is equipped with flow controller feed inlet, and collector 2 is located at 6 top of flow controller and receives
When the collector discharge port of storage 2 is directed at flow controller feed inlet, flow controller 6 receives the liquid chlorine that collector 2 is discharged
Change magnesium.The bottom of flow controller 6 is equipped with flow controller discharge port 8 and flow controller discharge port control valve 7, flow control
Device discharge port 8 controls flow control for the liquid magnesium chloride in delivery flow controller 6, flow controller discharge port control valve 7
8 aperture of device discharge port processed, to decide whether that the uninterrupted of liquid magnesium chloride and discharge is discharged, specifically, in flow control
Liquid surface height sensor is equipped in device 6, flow controller discharge port control valve 7 is determined according to the height of liquid level in flow controller 6
The aperture for making material mouth makes the flow at discharging keep stablizing.Flow controller 6, can as caching and volume control device
Guarantee the supply stable to granulator 10 of liquid magnesium chloride.
Liquid magnesium chloride granulating device includes granulator 10, driver 12 and the first protective cover 11.Driver 12 and granulation
The connection of device 10 carries out centrifugal granulation to drive it to rotate, and the first protective cover 11 is located at the outside of driver 12, to completely cut off high temperature
Magnesium chloride granules and high temperature air guarantee that driver 12 works normally for a long time.
There is cooling chamber, liquid chlorination magnesium apparatus is set in cooling chamber, and flow controller discharge port 8 is stretched in cooling device 13
Enter in cooling chamber and be aligned the entrance of granulator 10, driver 12 drives granulator 10 to rotate, so that in granulator 10
Due to the effect of centrifugal force, magnesium chloride forms a film liquid magnesium chloride in 10 surface spreading of granulator, and to the granulate of granulator 10
The edge of outlet is mobile, and the granulator that finally flies out 10 simultaneously moves (the preferably movement rail of liquid magnesium chloride towards the inner wall of cooling chamber
Mark is the inner wall of horizontally toward cooling chamber).It is magnesium chloride drop when liquid magnesium chloride flies out from granulator 10, in liquid chlorination
During magnesium flies its surface tension make its keep spherical or formed it is spherical, and in flight course with the gas in cooling chamber
Body heat exchange makes shell gradually hard formation magnesium chloride spheric granules.
Multiple cold wind imports (being preferably circumferentially evenly arranged 6) and cooling chamber discharging are communicated in the bottom of cooling chamber
Mouthful, cold wind import is higher than cooling chamber discharge port, and hot-blast outlet is communicated at the top of cooling chamber.When in the cold wind import of cooling chamber
When being sent into cold wind, cold wind is moved upwards, and slides or be detached from inner wall along inner wall after the inner wall of magnesium chloride spheric granules collision cooling chamber
Refraction moves downward, this process and cold wind exchange heat and the magnesium chloride spheric granules that forms hot wind and cool down, and hot wind is from hot-blast outlet
Cooling chamber is discharged, cooling magnesium chloride spheric granules is collected from cooling chamber discharge port discharge cooling device 13.
The hot air intake of waste heat boiler 22 is connected to by hot air duct 21 with hot-blast outlet, and the hot wind of cooling chamber discharge is received
Waste heat recycling is carried out to it, such as forms hot water or steam, and waste heat recycles the product to be formed can connect with residual heat using device 23
It connects, can be used as power generation or heating uses.Certainly, the hot-air of generation can preheat raw materials for production magnesium ingot, to reduce sea
The energy consumption of continuous titanium production.
Liquid magnesium chloride can be granulated into spheric granules by above-mentioned liquid magnesium chloride granulating device as a result, improve chlorination
The added value of product of magnesium.Meanwhile spheric granules increases heat exchange area, reduces the latent heat and high temperature sensible heat of liquid magnesium chloride
Difficulty is recycled, and then the operation cost of enterprise can be reduced, enhances enterprise competitiveness.
Meanwhile liquid magnesium chloride can be granulated balling-up by the residual neat recovering system with above-mentioned liquid magnesium chloride granulating device
Shape particle, and spherical magnesium chloride granules purity after cooling is very high, can be directly used as industrial chemicals etc., improve magnesium chloride
Added value of product.Meanwhile cooling device 13 and waste heat boiler 22 are set, heat exchange area is increased in conjunction with spheric granules, so that
The latent heat and high temperature sensible heat of liquid magnesium chloride are recycled, hence it is evident that the operation cost for reducing enterprise enhances enterprise
Competitiveness.In addition, irony collector, which is not present, constitutes the problem of polluting to magnesium chloride spheric granules after cooling, no dirt can be carried out
Dye processing, is packaged, is transported outward for example, spheric granules can flow into packaging bag.
Further, in the present embodiment, collector 2 can export (in the present embodiment with the liquid magnesium chloride of reacting furnace A
The outlet of the pipeline as stretched out from reacting furnace A) it is aligned to receive the collection position (referring to Fig.1) of liquid magnesium chloride and place
It can inject on flow controller 6 and into flow controller 6 between liquid magnesium chloride unloading position (referring to Fig. 2) and move
It is dynamic.When including multiple reacting furnace A in titanium sponge preparation system, residual neat recovering system includes at least two collectors 2, Mei Geshou
Storage 2 can carry out the collection of liquid magnesium chloride to each reacting furnace A, i.e. collector 2 can be corresponding to each reacting furnace A's
It collects and is moved between position and above-mentioned unloading position.As a result, when multiple reacting furnace A are worked at the same time, it can control it when different
Between liquid magnesium chloride is discharged, and then at least two collectors 2 can replace and be collected to liquid magnesium chloride and to flow controller
Discharge, can guarantee that flow controller substantially continuously receives liquid magnesium chloride, improves the working efficiency of total system in this way.
Preferably, four lifting lugs are evenly arranged in the surrounding of collector 2, each lifting lug is respectively connected with day car lifting rope 4, receives
Storage 2 can be moved by being suspended between collection position and unloading position for overhead traveling crane.
Further, referring to Fig. 2, in the present embodiment, cooling chamber from top to bottom includes the granulation chamber 14 being sequentially communicated, transition
Chamber 15 and heat exchanging chamber 16.Being granulated chamber 14 is cylinder, and granulator 10 is located in granulation chamber 14, and hot-blast outlet is located at granulation chamber 14.
The inner wall of adapter cavity 15 from top to bottom slopes inwardly in cone.Cold wind import and cooling chamber discharge port are located at heat exchanging chamber 16, change
The bottom of hot chamber 16 is tapered in cone, and the setting of cooling chamber discharge outlet controls the cooling chamber discharge port control valve 18 of its aperture.
Further, referring to Figures 1 and 2, collector 2 is made of stainless steel, and circular collector feed inlet is formed on top (should
The diameter of feed inlet is 2 times of the outer diameter of above-mentioned pipeline, to guarantee 2 inside and outside air pressure balance of collector in fill process), collector
Discharge port can be formed by the pipeline for being connected to collector bottom.The collecting chamber for accommodating liquid magnesium chloride is equipped in collector 2,
Cavity wall sprays fire-resistant oxidation resistant coating, and collector inlet port and outlet port are connected to collecting chamber, and the bottom of collecting chamber is tapered
Form inverted trapezoidal.The outer wall of collector 2 wraps up insulating layer (the collector insulating layer 1 i.e. in figure), is existed with reducing liquid magnesium chloride
Heat dissipation during collection, it is therefore prevented that the solidification on liquid magnesium chloride surface layer is crusted.The size of collector 2 is according to liquid magnesium chloride
Discharge rate determines, is 1.5 times of maximum throughput.
Flow controller 6 is stainless steel material, forms the flow control for accommodating liquid magnesium chloride inside flow controller 6
Chamber processed, cavity wall spray fire-resistant oxidation resistant coating, and the inlet port and outlet port of flow controller 6 connect with the flow control chamber
It is logical.The outer wall of flow controller 6 wraps up insulating layer (the flow controller insulating layer 5 i.e. in figure), to reduce dissipating for high-temperature particle
Heat loss.Circular flow controller feed inlet is arranged in the center at top, and (diameter of the feed inlet is collector discharge port
2 times of outer diameter), discharge port is apart from granulator 100mm~800mm.The tapered formation in bottom of 6 flow control chamber of flow controller
Inverted trapezoidal, driver 12 are speed regulating motor, and outside is fixed with protective cover 11.
Cooling device 13 is moving bed or bubbling bed.Thermal insulation material is wrapped up outside cooling device 13 forms insulating layer (ginseng
According to cooling device insulating layer 9 shown in figure), to reduce the radiation loss of high-temperature particle.
Granulator 10 is process by stainless steel, in the present embodiment, for contacting liquid magnesium chloride in granulator 10
Surface sprays fire-resistant oxidation resistant coating, and the bottom of granulator 10 is connect with driver 12.If granulator 10 is cylindrical shape, granulation
The outer diameter of device 10 is 50-250mm；Such as granulator 10 is non-tapered non-cylindrical, and the maximum outside diameter of granulator 10 is 50-
250mm.The revolving speed of granulator 10 is 100rpm~1200rpm, and the spherical magnesium chloride granules diameter of acquisition is greater than 0 and is less than or equal to
5mm。
Referring to Fig. 3-Fig. 7, liquid magnesium chloride granulating device further includes air injection equipment, air injection equipment include annular gas pipe 25,
Air inlet pipe 26 and multiple spouts 32.Annular gas pipe 25 is looped around the outside of granulator 10 and is formed with the outer wall interval of granulator 10
Gap 24, multiple spouts 32 are uniformly distributed on annular gas pipe 25 along the rotation axis of granulator 10, and with annular gas pipe 25
Inside connection.Multiple spouts 32 export the magnesium chloride drop jet to fly out towards the granulate of granulator 10, in this implementation
In example, spout 32 is upward.And air inlet pipe 26 is connected to annular gas pipe 25 and thinks that annular gas pipe 25 supplies, and then supplies for spout 32
Gas.When there is jet effect in the outlet of the granulate of granulator 10, the magnesium chloride drop for being detached from granulator 10 is fractured into band bubble
Drop, air injection equipment is for breaking off hollow magnesium chloride spheric granules as a result,.
Liquid magnesium chloride granulating device further includes the second protective cover 27 and two cooling air jet pipes 31.Second protective cover 27 with
Annular gas pipe 25 connects, and the outside of the part connected between granulator 10 and driver 12, the second protective cover 27
Inside is connected to gap 24.Cooling air jet pipe 31 protrudes into the inside of the second protective cover 27, for granulator 10 and driver 12
Between the part that connects cool down.So set, can be used for reducing the heat transfer between granulator 10 and driver 12, Jin Erbao
Protect the long-term normal operation of driver 12.
Wherein, in the present embodiment, it is connected with first flange 30 in granulator 10, is connected with second flange on driver 12
28, first flange 30 and second flange 28 connect, and sandwiched mat insulation 29 between, to reduce granulator 10 to driving
The heat transfer of device 12.Driver 12 is connect by the connection of first flange 30 and second flange 28 with granulator 11.
Wherein, in the present embodiment, the first protective cover 11 and the second protective cover 27 are connected together, to facilitate peace
Dress.The two can be fixed on any component in cooling device, as long as can keep stablizing at work.
Wherein, since the wind pressure and air quantity of cooling air jet pipe 31 and air injection equipment requirement be not identical, so the air feed of the two
It is carried out separately.
Referring to Fig. 8-Figure 16, the shape of granulator mainly includes but is not limited to following several：
Show square position type granulator in Fig. 8, i.e., it is a plane that granulator, which is the top surface of single-revolution body and granulator, top
Face is the surface for contacting liquid magnesium chloride.Entrance of the top of the intermediate region of plane as granulator 10, horizontal edge it is outer
Side is exported as granulate.
Bowl-type granulator is shown in Fig. 9, which is single-revolution body, and the top surface of bowl-type granulator is equipped with to lower recess
Cavity, the inner surface of cavity is cambered surface, the surface as contact liquid magnesium chloride.The top center region of cavity is as granulation
The entrance of device 10, annular region of the top of cavity close to outside are exported as granulate.
Cup type granulator is shown in Figure 10, which is single-revolution body, and top is equipped with the cavity to lower recess, recessed
The diametric cross sectional shape along revolving body of chamber is up big and down small trapezoidal.The inner surface of cavity is as contact liquid chlorination
The surface of magnesium.Entrance of the top center region of cavity as granulator 10, annular region of the top of cavity close to outside are made
For granulate outlet.
Band radiation groove profile granulator in square position is shown in Figure 11 and Figure 12, i.e. granulator includes the revolution that a top surface is plane
Body is set to the radius from center hole to external radiation, the top surface of revolving body and the cell wall of radius at the top of the revolving body
For the surface for contacting liquid magnesium chloride.Entrance of the center hole as granulator 10, the external port of radius go out as granulate
Mouthful.
Shown in Figure 13 and Figure 14 in cup type along band upright post type granulator), which includes single-revolution body, revolving body
Top is equipped with the cavity to lower recess, and the diametric cross sectional shape along revolving body of cavity is up big and down small trapezoidal, grain
Changing device further includes the multiple columns spaced apart being arranged in the annular upper wall of revolving body.The inner surface of cavity and the table of column
Surface of the face as contact liquid magnesium chloride.Entrance of the top center region of cavity as granulator 10, between adjacent columns
Gap as granulate export.
Cylinder type granulator is shown in Figure 15, which is single-revolution body, and middle and upper part is a cylinder.Cylinder it is interior
Surface of the upper surface of surface and lower part as contact liquid magnesium chloride.Top center region the entering as granulator 10 of cylinder
Mouthful, annular region of the top of cylinder close to outside is exported as granulate.
Cylinder side wall band pass granulator is shown in Figure 16.I.e. the granulator is single-revolution body, and middle and upper part is a circle
Tin, hole is had on the barrel of cylinder.The table of the inner surface of cylinder, the upper surface of lower part and hole wall as contact liquid magnesium chloride
Face.Entrance of the top center region of cylinder as granulator 10, the annular region and barrel of the top of cylinder close to outside
On hole as granulate export.
Controllable by the broken obtained magnesium chloride granules size of above-mentioned granulating device, purity is very high, being directly used as
Work raw material, and can obtain hollow magnesium chloride granules can be used for high-grade chemical products, improve magnesium chloride product at
Product rate and selling price.
Further, above-mentioned each control valve is electronic.
Further, in the present embodiment, the cold air outlet of waste heat boiler 22 passes through the bottom of cold air duct 19 and cooling chamber
Connection is equipped with air blower 20 on cold air duct 19, so can be energy saving to the recycling of cold air, reduces cost.
To sum up, when multiple reacting furnace A prepare titanium sponge simultaneously, successively liquid chlorination is discharged in compartment of terrain to multiple reacting furnace A
Magnesium, a collector 2 in above-mentioned at least two collector 2 for be currently discharged the reacting furnace A of liquid magnesium chloride execute it is as follows
Step：
S1, collector 2 are located at collection position corresponding to the reacting furnace A for the liquid magnesium chloride being currently discharged and receive liquid chlorine
Change magnesium, collector discharge port control valve 3 controls collector discharge port and closes (referring to Fig. 1) at this time；
S2, collector 2 are moved to unloading position (referring to fig. 2), and collector discharge port control valve 3 controls collector discharge port
It opens, liquid magnesium chloride is discharged to flow controller 6 in collector 2, and flow controller 6 receives the liquid chlorination that collector 2 is discharged
Magnesium is simultaneously injected into granulator 10 (preferably granulator 10 drives rotation via driver 12 at this time), wherein passes through flow
The aperture that controller discharge port control valve 7 controls flow controller discharge port 8 enters granulator 10 to control liquid magnesium chloride
Speed；
S3, flown out granulation due to the effect of centrifugal force by the liquid magnesium chloride in the granulator 10 of the driving rotation of driver 12
Device 10 is simultaneously moved towards the inner wall of cooling chamber, and liquid magnesium chloride becomes magnesium chloride spheric granules in the process；
S4, magnesium chloride spheric granules, which are encountered to move downward after the inner wall of cooling chamber, enters the cold of cooling chamber with from cold wind import
Cooling device 13 is discharged from cooling chamber discharge port in air heat-exchange, magnesium chloride spheric granules after cooling, and hot-air is from hot-blast outlet
Waste heat boiler 22 is escaped and enter to exchange heat.
Preferably, for each reacting furnace A, the discharge of liquid magnesium chloride be it is intermittent, interval time is fixed
, entire workshop has more reacting furnace A while working, so passing through the discharge chlorination for adjusting every reacting furnace A
The time of magnesium, to guarantee continuously substantially to import liquid magnesium chloride to flow controller.
Certainly, the present invention is not limited to this, and the residual neat recovering system in the present embodiment can also correspond only to a reacting furnace A
It uses, the method for waste heat recycling at this time includes the following steps：
S1, collector 2 receive the liquid magnesium chloride of reacting furnace A discharge；
Liquid magnesium chloride is discharged to flow controller 6 in S2, collector 2, and flow controller 6 receives the liquid that collector 2 is discharged
State magnesium chloride is simultaneously injected into granulator 10 (preferably granulator 10 drives rotation via driver 12 at this time), wherein logical
The aperture that overcurrent amount controller discharge port control valve 7 controls flow controller discharge port 8 enters granulation to control liquid magnesium chloride
The speed of device 10；
S3, flown out granulation due to the effect of centrifugal force by the liquid magnesium chloride in the granulator 10 of the driving rotation of driver 12
Device 10 is simultaneously moved towards the inner wall of cooling chamber, and liquid magnesium chloride becomes magnesium chloride spheric granules in the process；
S4, magnesium chloride spheric granules, which are encountered to move downward after the inner wall of cooling chamber, enters the cold of cooling chamber with from cold wind import
Cooling device 13 is discharged from cooling chamber discharge port in air heat-exchange, magnesium chloride spheric granules after cooling, and hot-air is from hot-blast outlet
Waste heat boiler 22 is escaped and enter to exchange heat.
Liquid magnesium chloride can be granulated into spherical shape using the method that above-mentioned residual neat recovering system carries out waste heat recycling as a result,
Particle, and spherical magnesium chloride granules purity after cooling is very high, can be directly used as industrial chemicals etc., improve magnesium chloride
Added value of product.Meanwhile cooling device 13 and waste heat boiler 22 are set, heat exchange area is increased in conjunction with spheric granules, so that liquid
The latent heat and high temperature sensible heat of state magnesium chloride are recycled, hence it is evident that it is competing to enhance enterprise for the operation cost for reducing enterprise
Strive power.In addition, magnesium chloride spheric granules after cooling can carry out no dirt there is no the problem of polluting is constituted to irony collector
Dye processing, is packaged, is transported outward for example, spheric granules can flow into packaging bag.
It is to be appreciated that describing the skill simply to illustrate that of the invention to what specific embodiments of the present invention carried out above
Art route and feature, its object is to allow those skilled in the art to can understand the content of the present invention and implement it accordingly, but
The present invention is not limited to above-mentioned particular implementations.All various changes made within the scope of the claims are repaired
Decorations, should be covered by the scope of protection of the present invention.
Claims (10)
1. a kind of liquid magnesium chloride granulating device, which is characterized in that connect including granulator (10), with the granulator (10) with
It drives it to rotate and carries out the driver (12) of centrifugal granulation and be located at first protective cover in the outside of the driver (12)
(11)。
2. liquid magnesium chloride granulating device according to claim 1, which is characterized in that further include：
Air injection equipment, the air injection equipment include the chlorination that at least one flies out towards the granulate outlet of the granulator (10)
The spout (32) of magnesium liquid drop jet.
3. liquid magnesium chloride granulating device according to claim 2, which is characterized in that
The air injection equipment further includes annular gas pipe (25), and the annular gas pipe (25) is looped around the outside of the granulator (10)
And gap (24) are formed with the outer wall interval of the granulator (10)；
Multiple spouts (32) are uniformly distributed on the annular gas pipe (25) along the rotation axis of the granulator (10),
And it is connected to the inside of the annular gas pipe (25).
4. liquid magnesium chloride granulating device according to claim 3, which is characterized in that further include：
Second protective cover (27), second protective cover (27) connect with the annular gas pipe (25), and are located at the granulation
The outside of the part connected between device (10) and the driver (12), the inside and the gap of second protective cover (27)
(24) it is connected to；
Cooling air jet pipe (31), the cooling air jet pipe (31) protrude into the inside of second protective cover (27), for described
The part connected between granulator (10) and the driver (12) cools down.
5. liquid magnesium chloride granulating device according to claim 4, which is characterized in that
It is connected with first flange (30) on the granulator (10), is connected with second flange (28), institute on the driver (12)
State first flange (30) and the second flange (28) connection, and sandwiched mat insulation (29) between, the driver
(12) it is connect by the connection of the first flange (30) and the second flange (28) with the granulator (10).
6. a kind of residual neat recovering system of titanium sponge liquid magnesium chloride produced during the preparation process, which is characterized in that including right
It is required that liquid magnesium chloride granulating device described in any one of 1-5, further includes：
The collector (2) of the liquid magnesium chloride of reacting furnace (A) discharge of titanium sponge is prepared for reception, the collector (2)
Bottom is equipped with collector discharge port and controls the collector discharge port control valve (3) of the aperture of the collector discharge port；
For receiving the flow controller (6) of the liquid magnesium chloride of the collector (2) discharge, the flow controller (6)
Bottom is equipped with flow controller discharge port and controls the flow controller discharge port control of the flow controller discharge port aperture
Valve (7)；
Cooling device (13) has cooling chamber in the cooling device (13), the bottom of the cooling chamber be communicated with cold wind into
Mouth (17) and cooling chamber discharge port, the cold wind import (17) is higher than the cooling chamber discharge port, at the top of the cooling chamber
It is communicated with hot-blast outlet；And
The waste heat boiler (22) being connected to the hot-blast outlet；
Wherein, the liquid magnesium chloride granulating device is set in the cooling chamber, and the flow controller discharge port protrudes into described
In cooling chamber and it is directed at the entrances of the granulator (10).
7. the residual neat recovering system of titanium sponge liquid magnesium chloride produced during the preparation process according to claim 6, special
Sign is,
The collector (2) can be aligned with the outlet of the liquid magnesium chloride of the reacting furnace (A) to receive liquid magnesium chloride
It collects position and is placed on the flow controller (6) and liquid magnesium chloride can be injected into the flow controller (6)
Unloading position between move；
Four lifting lugs are evenly arranged in the surrounding of the collector (2), each lifting lug is respectively connected with day car lifting rope (4),
The collector (2) can be moved by being suspended between the collection position and the unloading position for overhead traveling crane.
8. the residual neat recovering system of titanium sponge liquid magnesium chloride produced during the preparation process according to claim 1, special
Sign is,
The cooling chamber from top to bottom includes the granulation chamber (14), adapter cavity (15) and heat exchanging chamber (16) being sequentially communicated；
The granulator (10) is located in the granulation chamber (14), and the hot-blast outlet is connected to the granulation chamber (14)；
The inner wall of the adapter cavity (15) from top to bottom slopes inwardly；
The cold wind import (17) and the cooling chamber discharge port are connected to the heat exchanging chamber (16).
9. the residual neat recovering system of titanium sponge liquid magnesium chloride produced during the preparation process according to claim 8, special
Sign is,
The bottom of the heat exchanging chamber (16) is tapered, and the cooling chamber discharge outlet is equipped with the cooling chamber discharge port control for controlling its aperture
Valve (18) processed；
The collector (2) is made of stainless steel, and the bottom of the collecting chamber of the collector (2) is tapered, the collector (2)
Outer wall wraps up insulating layer；
The bottom of the flow control chamber of the flow controller (6) is tapered, and the outer wall of the flow controller (6) wraps up heat preservation
Layer；
The cooling device outer wall wraps up insulating layer；
The hot air intake of the waste heat boiler (22) is connected to by hot air duct (21) with the hot-blast outlet；
The cold air outlet of the waste heat boiler (22) is connected to by cold air duct (19) with the bottom of the cooling chamber.
10. it is a kind of using residual neat recovering system as claimed in claim 9 to titanium sponge liquid magnesium chloride produced during the preparation process
The method for carrying out waste heat recycling, which is characterized in that including：
S1, the collector (2) receive the liquid magnesium chloride of reacting furnace (A) discharge；
Liquid magnesium chloride is discharged to the flow controller (6) in S2, the collector (2), and the flow controller (6) receives institute
It states the liquid magnesium chloride of collector (2) discharge and is injected into the granulator (10), wherein pass through the flow controller
Discharge port control valve (7) controls the aperture of the flow controller discharge port to control liquid magnesium chloride into the granulator
(10) speed；
S3, it is flown out due to the effect of centrifugal force by the liquid magnesium chloride in the granulator (10) of the driver (12) driving rotation
The granulator (10) simultaneously moves towards the inner wall of the cooling chamber, and the liquid magnesium chloride becomes magnesium chloride ball in the process
Shape particle；
S4, the magnesium chloride spheric granules encounter move downward after the inner wall of the cooling chamber with from the cold wind import (17) into
Enter the cold air heat exchange of the cooling chamber, the cooling is discharged from the cooling chamber discharge port in magnesium chloride spheric granules after cooling
Device (13), hot-air escape and enter the waste heat boiler (22) from the hot-blast outlet and exchange heat.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810716547.XA CN108889238A (en) | 2018-06-29 | 2018-06-29 | Liquid magnesium chloride granulating device and residual neat recovering system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810716547.XA CN108889238A (en) | 2018-06-29 | 2018-06-29 | Liquid magnesium chloride granulating device and residual neat recovering system and method |
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| CN108889238A true CN108889238A (en) | 2018-11-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112295340A (en) * | 2020-03-14 | 2021-02-02 | 青岛永泰锅炉有限公司 | Efficient recycling system for boiler waste heat |
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