CN210261845U - Vanadium titano-magnetite resource comprehensive utilization processing apparatus - Google Patents
Vanadium titano-magnetite resource comprehensive utilization processing apparatus Download PDFInfo
- Publication number
- CN210261845U CN210261845U CN201920842829.4U CN201920842829U CN210261845U CN 210261845 U CN210261845 U CN 210261845U CN 201920842829 U CN201920842829 U CN 201920842829U CN 210261845 U CN210261845 U CN 210261845U
- Authority
- CN
- China
- Prior art keywords
- reduction
- kiln
- reduction kiln
- magnetite
- comprehensive utilization
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The utility model provides a vanadium titano-magnetite resource comprehensive utilization processing apparatus, green ball get into and get into deep reduction kiln after the rotary kiln prereduction with the microwave heating further reinforce the reduction, can obtain the good pelletizing of vanadium titanium and iron separation to carry out the mill on next step and select. The pre-reduction is carried out under the condition of a rotary kiln (at a lower temperature (below 1000 ℃)) to prevent the kiln from being formed, thereby ensuring the smooth operation and the reliability of the rotary kiln; in addition, the volatilization of the additive is reduced, the reduction potential of the vanadium-titanium mineral is reduced, the basic guarantee for realizing the separation of iron and vanadium-titanium is realized), the processes of drying, preheating, pre-reduction and the like are completed, the deep reduction adopts microwave reduction, the operation is simple, the efficiency is high, and the consumption is low. The process device not only can fully and reasonably recycle iron, vanadium and titanium in the vanadium titano-magnetite, but also has the characteristics of short process flow, energy saving and environmental friendliness, and can realize high-efficiency comprehensive utilization of the vanadium titano-magnetite resources.
Description
Technical Field
The utility model relates to a reduction processing apparatus, concretely relates to vanadium titano-magnetite comprehensive resource utilization processing apparatus belongs to vanadium titano-magnetite separation technical field.
Background
Vanadium and titanium are recognized as rare resources and important strategic substances in the world. Wherein the content of vanadium in the earth's crust is about 0.02% -0.03%, which is very dispersed in nature, usually associated with other metals, 98% of which is symbiotic to vanadium titano-magnetite, and 88% of the world's vanadium production is obtained from vanadium titano-magnetite. The titanium resource is abundant and widely distributed, the abundance of titanium in the earth crust is 0.63%, more than 140 kinds of titanium-containing minerals in the earth crust are available, but only more than 10 kinds of minerals with acquisition value are available, and the titanium-containing minerals are mainly ilmenite and rutile. The vanadium titano-magnetite is a multi-element symbiotic iron ore which mainly comprises iron, vanadium and titanium and is associated with a plurality of valuable elements (such as chromium, cobalt, nickel, copper, scandium, gallium, platinum group elements and the like), because iron and titanium are closely symbiotic, vanadium is endowed in the titano-magnetite in the form of an isomorphism, and the vanadium titano-magnetite generally contains 21-25% of TiO and V2O50.1-2%. The global vanadium titano-magnetite has abundant reserves, the total resource amount is more than 400 hundred million tons, and the resources are intensively distributed in a few countries, such as China, Russia, south Africa, Canada, America, Norway and the like. The accompanying vanadium, titanium, iron, chromium and other valuable metals have high comprehensive utilization value. At present, the development of vanadium titano-magnetite resources in various countries is different and has various characteristics, but iron, vanadium and titanium in the vanadium titano-magnetite cannot be recycled at the same time well, and the iron and the vanadium titanium are difficult to separate.
The comprehensive utilization of vanadium titano-magnetite began in the 20 th century at the earliest, and then in order to meet the demand for vanadium and titanium, some countries represented by soviet union, norway, finland, south africa and canada began to research the sorting and smelting problems of vanadium titano-magnetite, and from this point on the comprehensive utilization of vanadium titano-magnetite, the priority of vanadium titano-magnetite was opened. The development and reasonable utilization of the domestic vanadium-titanium magnetite resources are very important in China from the sixties of the last century, and the large-scale industrial production of the vanadium-titanium magnetite flow of 'blast furnace iron making-converter steel making vanadium extracting slag-sodium vanadium extracting' represented by enterprises such as steel climbing and steel bearing enterprises is formed by breaking through the technical attack of numerous scientific and technological workers for decades, but the resource utilization rate of the existing traditional smelting and processing technology which takes steel as the guide is low, the comprehensive utilization rate of the vanadium resources in the vanadium-titanium magnetite is only 47%, the recovery rate of the titanium resources is less than 15%, chromium cannot be utilized, the resource waste is serious, the serious environmental pollution is caused, and the ecological environment safety of the upper reaches of Yangtze river is directly threatened. Therefore, the establishment of a new method for the efficient and comprehensive utilization of vanadium titano-magnetite resources has important significance in improving the comprehensive utilization rate of resources and reducing environmental pollution.
The blast furnace method is the earliest industrialized method for processing vanadium-titanium magnetite concentrate, and the method is to pelletize the vanadium-titanium magnetite concentrate or send the vanadium-titanium magnetite concentrate into a blast furnace for smelting after sintering, most of vanadium is reduced to enter vanadium-containing molten iron in the smelting process, and almost all titanium enters blast furnace slag. And blowing the vanadium-containing molten iron by a converter to ensure that most of vanadium is selectively oxidized and enters a slag phase to obtain semisteel and vanadium-containing steel slag. The semisteel is further decarburized in a converter to form molten steel for producing alloy steel and the like, and the vanadium-containing steel slag is used for preparing vanadium products. The blast furnace method can better recover iron and vanadium in the vanadium-titanium magnetite concentrate, but titanium is dispersed and finely distributed in blast furnace slag and is difficult to separate. At present, no better way is available for utilizing the titanium slag, and a large amount of titanium-containing blast furnace slag is accumulated like a mountain, so that not only is a great waste of titanium resources caused, but also the land is occupied, and the surrounding environment is polluted. In addition, along with the increase of the content of TiO2 in the slag, the difficulty of blast furnace smelting is increased, the phenomena of foam slag, viscous slag and iron loss increase occur, the smelting process is difficult to carry out, and in addition, the blast furnace process has multi-step high temperature and high energy consumption; the process is long, the procedures of coking, sintering and the like are performed, and the pollution is large.
The basic process of the sodium treatment vanadium extraction-reduction-melting process is to pelletize sodium salt and vanadium-titanium magnetite concentrate, then carry out sodium oxide roasting at about 1000 ℃ to make vanadium and sodium salt form sodium vanadate dissolved in water, separate vanadium from iron and titanium by water immersion, reduce the residual pellet by a rotary kiln, melt and separate the residual pellet by an electric furnace to obtain molten steel and titanium slag, thereby recycling iron, vanadium and titanium. The process flow is shown in figure 3. In foreign countries, south africa, finland and other countries, although the process has been applied to industrial production, it is limited to the recovery of vanadium, and titanium resources are not utilized.
The reduction-grinding selection method is that the vanadium-titanium magnetite concentrate is selectively reduced under the solid condition, so that the iron oxide in the vanadium-titanium magnetite concentrate is fully reduced into metallic iron and grows to a certain granularity, the vanadium-titanium still keeps the oxide form, then the obtained high-metallization product is finely ground and separated into iron powder concentrate and vanadium-titanium-rich material, and then the vanadium-titanium-rich material is treated to extract the vanadium-titanium. The method has the advantages that the iron and titanium are separated under the solid condition, the problem that foam slag or viscous slag is easy to appear under the molten condition is avoided, and the comprehensive technical indexes are superior to those of a blast furnace method and a reduction-melting method. However, the reduction grinding method requires that the metallization rate in the reduction process is more than 90%, and iron grains grow to a certain size, and because the vanadium-titanium magnetite is difficult to reduce, the reduction must be carried out at a temperature much higher than that of common ores in order to achieve the requirements, and although a measure of adding sodium salt to strengthen the reduction process is adopted, accidents such as corrosion and nodulation of reduction equipment are easily caused. In addition, the reduction milling method is not comparable to the blast furnace method and the reduction-melting method in production scale, which is one of the reasons why the industrial application thereof is difficult.
The transfer bottom furnace method and the shaft furnace method in the direct reduction technology are too complex and difficult to realize industrialization; the tunnel kiln technology has the defects of high energy consumption, large pollution and the like; the rotary kiln method is based on the reason of ring formation of a rotary kiln, the reduction temperature cannot be too high, so that the iron crystal grains are not ideal to grow, and as a result, the product has fine granularity, low TFe content and high TiO2 content, and the high-value-added reduced iron powder for powder metallurgy is difficult to produce; fine ore powder is liable to caking and defluidization during reduction by the fluidized bed method, and expensive high-hydrogen gas is required to avoid carbon precipitation.
In conclusion, due to the particularity of vanadium titano-magnetite resources, most of the existing vanadium titano-magnetite concentrate smelting technologies have the problems of high production cost, high technical difficulty, low comprehensive utilization rate of resources and the like, and the development of a novel industrial resource comprehensive utilization process technology which meets the reduction characteristics of vanadium titano-magnetite is a problem to be urgently broken through and solved at present.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects that the existing process flow and equipment for utilizing the vanadium titano-magnetite have long flow, large investment, high energy consumption, low efficiency and insufficient utilization of vanadium and titanium in the prior art. The utility model discloses a vanadium titano-magnetite resource comprehensive utilization processing apparatus to the realization is to the high-efficient recycle of iron, vanadium, the titanium of vanadium titano-magnetite. The green pellets enter a rotary kiln for pre-reduction and then enter a deep reduction kiln for further enhanced reduction by microwave heating, and the pellets with good separation of vanadium and titanium and iron can be obtained so as to be convenient for the next grinding and selection. The pre-reduction is carried out under the condition of a rotary kiln (at a lower temperature (below 1000 ℃)) to prevent the kiln from being formed, thereby ensuring the smooth operation and the reliability of the rotary kiln; in addition, the volatilization of the additive is reduced, the reduction potential of the vanadium-titanium mineral is reduced, the basic guarantee for realizing the separation of iron and vanadium-titanium is realized), the processes of drying, preheating, pre-reduction and the like are completed, the deep reduction adopts microwave reduction, the operation is simple, the efficiency is high, and the consumption is low. The process device not only can fully and reasonably recycle iron, vanadium and titanium in the vanadium titano-magnetite, but also has the characteristics of short process flow, energy saving and environmental friendliness, and can realize high-efficiency comprehensive utilization of the vanadium titano-magnetite resources.
According to the utility model provides an embodiment provides a vanadium titano-magnetite comprehensive resource utilization processing apparatus.
A comprehensive utilization and treatment device for vanadium titano-magnetite resources comprises a pre-reduction kiln and a deep reduction kiln. Wherein: one end of the pre-reduction kiln is provided with a feed inlet of the pre-reduction kiln. The other end of the pre-reduction kiln is provided with a pre-reduction kiln discharge hole. A burner is arranged at the discharge port of the pre-reduction kiln. The burner is connected with the fuel conveying pipeline and the air conveying pipeline respectively. The top of the deep reduction kiln is provided with a feed inlet of the deep reduction kiln. The bottom of the deep reduction kiln is provided with a discharge hole of the deep reduction kiln. The discharge hole of the pre-reduction kiln is communicated with the feed hole of the deep reduction kiln.
Preferably, the apparatus further comprises a pre-treatment device. The top of the pretreatment device is provided with a feed inlet of the pretreatment device. The bottom of the pretreatment device is provided with a discharge hole of the pretreatment device. An air inlet and an air outlet are arranged on the side wall of the pretreatment device. The air inlet of the pretreatment device is communicated with the discharge hole of the pre-reduction kiln.
Preferably, the discharge hole of the pretreatment device is connected with the feed hole of the pre-reduction kiln through a material conveying device. And conveying the materials dried and pretreated by the pretreatment device to a feed inlet of the pre-reduction kiln by the material conveying device.
Preferably, a fixed distributing screen is arranged between the discharge hole of the pre-reduction kiln and the feed hole of the deep reduction kiln. The material pre-reduced by the pre-reduction kiln enters the deep reduction kiln after passing through a fixed distributing sieve.
Preferably, the pre-reduction kiln is a reduction rotary kiln.
Preferably, the deep reduction kiln is a microwave reduction kiln. The microwave reducing kiln is provided with a microwave emitting source.
Preferably, a temperature detection device is arranged in the reduction rotary kiln.
Preferably, the temperature detection device is a thermocouple.
Preferably, an infrared thermal imager is arranged in the reduction rotary kiln.
Preferably, a temperature detection device is arranged in the microwave reduction kiln.
Preferably, the temperature detection device is a thermocouple.
Preferably, the apparatus further comprises a mill separation device. The top of the grinding and separating device is provided with a feeding hole of the grinding and separating device. The bottom of the grinding and separating device is provided with an iron phase discharge port and a slag phase discharge port. The feed inlet of the grinding and separating device is communicated with the discharge outlet of the deep reduction kiln.
Preferably, the air inlet of the pretreatment device is connected with the exhaust pipeline. The exhaust duct is provided with a fan.
Preferably, the other end of the exhaust duct is connected to the burner.
In the present invention, the temperature in the pre-reduction kiln is controlled to 1000 ℃ or lower, preferably 950 ℃ or lower, and more preferably 900 ℃ or lower.
In the utility model, the temperature in the deep reduction kiln is controlled within 1400 ℃, preferably 1050-.
In the utility model, the rotary kiln pre-reduction and microwave deep reduction mode is used, so that the reduction rotary kiln can run at a lower temperature (below 1000 ℃), the ring formation phenomenon of the rotary kiln is reduced, and the energy consumption is also saved; the drying, preheating and pre-reduction of the green pellets are all completed in the rotary kiln, so that the flow is shortened; the gas generated in the process can be used for a pretreatment device to dry and preheat materials, so that the energy consumption is reduced; the microwave reinforced reduction can be used for reducing iron quickly and efficiently, so that time cost is saved, and a product with higher quality is produced; the selective reduction by using microwaves can avoid the reduction of some impurity elements, improve the grinding and separation efficiency and realize the quick and efficient separation of iron and vanadium and titanium; the iron powder with higher metallization rate can be obtained, and simultaneously the activity of useful minerals in tailings can be higher.
The utility model discloses a vanadium titano-magnetite resource comprehensive utilization processing apparatus, whole reduction falls into two sections, at first, and the material can carry out the reduction in advance with the lower temperature through the rotary kiln, then, the reduction pelletizing gets into dark reduction kiln through fixed sieve cloth in advance, utilizes the microwave to strengthen the reduction, and iron oxide is further reduced, and the metallic iron gathering is grown up, obtains high-quality reduction product.
In the utility model, iron oxide in the vanadium titano-magnetite pellets is primarily reduced in the pre-reduction process of the rotary kiln to generate a part of metallic iron. After the pre-reaction of the vanadium titano-magnetite pellets is finished, the vanadium titano-magnetite pellets enter a microwave deep reduction furnace, iron crystal grains further grow and gather quickly in the process, and simultaneously, iron and vanadium and titanium are separated due to the selective reduction of microwaves.
The utility model discloses in, the device still includes preprocessing device, and fuel and air are reducing the kiln heating in advance, reduce the material back in advance, and the gas of getting rid of from reducing the kiln in advance still has the high temperature condition about 500 ℃, the utility model discloses utilize this part high temperature gas to carry to preprocessing device, this part of make full use of has the gas of high temperature condition and is used for the drying, preheats the material, realizes thermal make full use of, the consumption of energy saving improves the reduction efficiency of device simultaneously. In addition, the dried and preheated materials are conveyed to the pre-reduction kiln, so that the pre-reduction effect of the pre-reduction kiln on the materials is favorably improved. Because the dried and preheated materials are conveyed to the pre-reduction kiln, the moisture content in the materials entering the pre-reduction kiln is greatly reduced, and the pre-reduction effect of the vanadium titano-magnetite is facilitated.
In the utility model, the materials dried and preheated by the pretreatment device can be directly conveyed to the pre-reduction kiln by the material conveying device; or the materials dried and preheated by the pretreatment device can be conveyed to a storage bin and then conveyed to the pre-reduction kiln.
The utility model discloses in, be equipped with fixed cloth sieve between reduction kiln discharge gate and the dark reduction kiln feed inlet in advance, fixed cloth sieve is used for going to the dark reduction kiln with the even cloth of the material that reduces the kiln in advance and handle, and the material is not even at dark reduction kiln, is favorable to the dark reduction process of material in dark reduction kiln.
In the utility model, a temperature detection device is arranged in the reduction rotary kiln, and the temperature detection device detects the temperature condition of each section in the reduction rotary kiln in real time to ensure the pre-reduction effect in the reduction rotary kiln; meanwhile, the ring formation phenomenon in the reduction rotary kiln is avoided.
The utility model discloses an be equipped with infrared thermal imager in the reduction rotary kiln for detect the product quality of pre-reaction.
In the utility model, a temperature detection device is arranged in the microwave reduction kiln and is used for detecting the reduction temperature.
The utility model discloses in, the device still selects separator including grinding, and the material branch that the kiln was handled through dark reduction is for the great iron phase of crystalline grain and the abundant slag phase of vanadium titanium content, and vanadium titanium magnetite after through prereduction and dark reduction is because the iron phase crystalline grain grows up, selects separator can the quick separation iron phase and the abundant slag phase of vanadium titanium content through grinding, realizes quick, the autosegregation of iron and vanadium titanium in the vanadium iron magnetite.
In the utility model, the hot air discharged after the pretreatment device can be circulated to the burner for a part of the burner combustion-supporting gas. Because the part of air after passing through the pretreatment device, drying and preheating the materials still has the temperature of about 80 ℃, the hot air with certain temperature of the part is used for one part of burner combustion-supporting gas, and the heat is used as the combustion-supporting gas, so that the consumption of fuel is saved.
The utility model discloses in, the temperature control in the reduction kiln in advance is below 1000 ℃, guarantees the reduction effect in advance of vanadium titano-magnetite in the reduction kiln in advance, simultaneously, has avoided the emergence of vanadium titano-magnetite ring formation phenomenon in the reduction kiln in advance.
In the utility model, the temperature in the deep reduction kiln is controlled within the range of 1000-1400 ℃, so that the deep reduction effect of the vanadium titano-magnetite in the deep reduction kiln is ensured, and the separation effect of iron and vanadium titanium in the vanadium titano-magnetite is ensured.
Compared with the prior art, the technical scheme of the utility model have following friendship technical effect:
1. the utility model discloses a vanadium titano-magnetite resource comprehensive utilization processing apparatus, whole reduction falls into two sections, at first, the material can be through rotary kiln carries out the prereduction with the lower temperature, then, the prereduction pelletizing passes through fixed sieve cloth and gets into deep reduction kiln, utilizes the microwave to strengthen the reduction, and iron oxide is further reduced, and the metallic iron gathers and grows up, obtains high-quality reduction product;
2. the utility model utilizes the high-temperature gas exhausted by the pre-reduction kiln to be conveyed to the pretreatment device, the gas with high-temperature conditions at the part is fully utilized for drying and preheating materials, the heat is fully utilized, the energy consumption is saved, and the reduction efficiency of the device is improved;
3. the utility model discloses be equipped with fixed cloth sieve between reduction kiln discharge gate and deep reduction kiln feed inlet in advance, fixed cloth sieve is used for going to deep reduction kiln with the even cloth of material through reduction kiln processing in advance.
Drawings
FIG. 1 is a structural diagram of the device of the comprehensive utilization and treatment device for vanadium titano-magnetite resources of the present invention;
FIG. 2 is a structural diagram of a device provided with a pretreatment device in the comprehensive utilization and treatment device for vanadium titano-magnetite resources of the present invention;
FIG. 3 the utility model relates to a device structure diagram of a grinding and separating device arranged in a vanadium titano-magnetite resource comprehensive utilization and treatment device.
Reference numerals:
1: a pre-reduction kiln; 101: a feed inlet of the pre-reduction kiln; 102: a discharge hole of the pre-reduction kiln; 103: burning a nozzle; 2: a deep reduction kiln; 201: a feed inlet of the deep reduction kiln; 202: a discharge hole of the deep reduction kiln; 203: a microwave emission source; 3: a pretreatment device; 301: a feed inlet of the pretreatment device; 302: a discharge port of the pretreatment device; 303: an air inlet; 304: an air outlet; 4: fixing a distributing screen; 5: a temperature detection device; 6: an infrared thermal imager; 7: a grinding, selecting and separating device; 701: a feed inlet of the grinding and separating device; 702: an iron phase discharge hole; 703: a slag phase discharge port; 8: a fan; l1: a fuel delivery conduit; l2: an air delivery conduit; l3: a material conveying device; l4: an exhaust duct.
Detailed Description
The technical solution of the present invention is illustrated below, and the claimed invention includes but is not limited to the following embodiments.
According to the utility model provides an embodiment provides a vanadium titano-magnetite comprehensive resource utilization processing apparatus.
A vanadium titano-magnetite resource comprehensive utilization processing device comprises a pre-reduction kiln 1 and a deep reduction kiln 2. Wherein: one end of the pre-reduction kiln 1 is provided with a pre-reduction kiln feed inlet 101. The other end of the pre-reduction kiln 1 is provided with a pre-reduction kiln discharge port 102. A burner 103 is arranged at the discharge hole 102 of the pre-reduction kiln. The burner 103 is connected to a fuel supply line L1 and an air supply line L2. The top of the deep reduction kiln 2 is provided with a deep reduction kiln feed inlet 201. The bottom of the deep reduction kiln 2 is provided with a deep reduction kiln discharge port 202. The pre-reduction kiln discharge port 102 is communicated with the deep reduction kiln feed port 201.
Preferably, the apparatus further comprises a pre-treatment device 3. The top of the pretreatment device 3 is provided with a pretreatment device feed inlet 301. The bottom of the pretreatment device 3 is provided with a pretreatment device discharge port 302. The side wall of the pretreatment device 3 is provided with an air inlet 303 and an air outlet 304. The air inlet 303 of the pretreatment device 3 is communicated with the discharge hole 102 of the pre-reduction kiln.
Preferably, the discharge port 302 of the pre-treatment device is connected with the feed port 101 of the pre-reduction kiln through a material conveying device L3. The material dried and pretreated by the pretreatment device 3 is conveyed to the feed inlet 101 of the pre-reduction kiln by a material conveying device L3.
Preferably, a fixed distributing screen 4 is arranged between the discharge hole 102 of the pre-reduction kiln and the feed hole 201 of the deep reduction kiln. The material pre-reduced by the pre-reduction kiln 1 enters the deep reduction kiln 2 after passing through a fixed distributing sieve 4.
Preferably, the pre-reduction kiln 1 is a reduction rotary kiln.
Preferably, the deep reduction kiln 2 is a microwave reduction kiln. The microwave reducing kiln is provided with a microwave emission source 203.
Preferably, a temperature detection device 5 is arranged in the reduction rotary kiln.
Preferably, the temperature detection device 5 is a thermocouple.
Preferably, an infrared thermal imaging camera 6 is arranged in the reduction rotary kiln.
Preferably, a temperature detection device 5 is arranged in the microwave reduction kiln.
Preferably, the temperature detection device 5 is a thermocouple.
Preferably, the apparatus further comprises a mill separation device 7. The top of the grinding and separating device 7 is provided with a grinding and separating device feed inlet 701. The bottom of the grinding and separating device 7 is provided with an iron phase discharge port 702 and a slag phase discharge port 703. The feed inlet 701 of the grinding and separation device is communicated with the discharge outlet 202 of the deep reduction kiln.
Preferably, the air inlet 303 of the pretreatment device 3 is connected to an air exhaust duct L4. The exhaust duct L4 is provided with a fan 8.
Preferably, the other end of the exhaust duct L4 is connected to the burner 103.
In the present invention, the temperature in the pre-reduction kiln 1 is controlled to 1000 ℃ or lower, preferably 950 ℃ or lower, and more preferably 900 ℃ or lower.
In the utility model, the temperature in the deep reduction kiln 2 is controlled within 1400 ℃, preferably 1050-.
Example 1
As shown in figure 1, the device for comprehensively utilizing the vanadium titano-magnetite resources comprises a pre-reduction kiln 1 and a deep reduction kiln 2. Wherein: one end of the pre-reduction kiln 1 is provided with a pre-reduction kiln feed inlet 101. The other end of the pre-reduction kiln 1 is provided with a pre-reduction kiln discharge port 102. A burner 103 is arranged at the discharge hole 102 of the pre-reduction kiln. The burner 103 is connected to a fuel supply line L1 and an air supply line L2. The top of the deep reduction kiln 2 is provided with a deep reduction kiln feed inlet 201. The bottom of the deep reduction kiln 2 is provided with a deep reduction kiln discharge port 202. The pre-reduction kiln discharge port 102 is communicated with the deep reduction kiln feed port 201. The pre-reduction kiln 1 is a reduction rotary kiln, the deep reduction kiln 2 is a microwave reduction kiln, and a microwave emission source 203 is arranged on the microwave reduction kiln.
Example 2
As shown in figure 2, the device for comprehensively utilizing the vanadium titano-magnetite resources comprises a pre-reduction kiln 1 and a deep reduction kiln 2. Wherein: one end of the pre-reduction kiln 1 is provided with a pre-reduction kiln feed inlet 101. The other end of the pre-reduction kiln 1 is provided with a pre-reduction kiln discharge port 102. A burner 103 is arranged at the discharge hole 102 of the pre-reduction kiln. The burner 103 is connected to a fuel supply line L1 and an air supply line L2. The top of the deep reduction kiln 2 is provided with a deep reduction kiln feed inlet 201. The bottom of the deep reduction kiln 2 is provided with a deep reduction kiln discharge port 202. The pre-reduction kiln discharge port 102 is communicated with the deep reduction kiln feed port 201.
The apparatus also comprises a pre-treatment device 3. The top of the pretreatment device 3 is provided with a pretreatment device feed inlet 301. The bottom of the pretreatment device 3 is provided with a pretreatment device discharge port 302. The side wall of the pretreatment device 3 is provided with an air inlet 303 and an air outlet 304. The air inlet 303 of the pretreatment device 3 is communicated with the discharge hole 102 of the pre-reduction kiln.
Example 3
Example 2 was repeated except that the outlet 302 of the pretreatment device was connected to the inlet 101 of the prereduction kiln via a material-conveying device L3. The material dried and pretreated by the pretreatment device 3 is conveyed to the feed inlet 101 of the pre-reduction kiln by a material conveying device L3.
Example 4
Example 3 is repeated except that a fixed distributing screen 4 is arranged between the discharge port 102 of the pre-reduction kiln and the feed port 201 of the deep reduction kiln. The material pre-reduced by the pre-reduction kiln 1 enters the deep reduction kiln 2 after passing through a fixed distributing sieve 4.
Example 5
Example 4 was repeated except that the reduction rotary kiln was provided with a temperature detection device 5 and an infrared thermal imager 6, the microwave reduction kiln was provided with a temperature detection device 5, and the temperature detection device 5 was a thermocouple.
Example 6
As shown in FIG. 3, example 4 was repeated except that the apparatus further included a mill separation apparatus 7. The top of the grinding and separating device 7 is provided with a grinding and separating device feed inlet 701. The bottom of the grinding and separating device 7 is provided with an iron phase discharge port 702 and a slag phase discharge port 703. The feed inlet 701 of the grinding and separation device is communicated with the discharge outlet 202 of the deep reduction kiln.
Example 7
Example 6 was repeated except that the air intake 303 of the pretreatment device 3 was connected to the exhaust duct L4. The exhaust duct L4 is provided with a fan 8.
Example 8
Example 7 was repeated except that the other end of the exhaust duct L4 was connected to the burner 103.
Claims (21)
1. A vanadium titano-magnetite resource comprehensive utilization processing device comprises a pre-reduction kiln (1) and a deep reduction kiln (2); wherein: one end of the pre-reduction kiln (1) is provided with a pre-reduction kiln feed inlet (101), and the other end of the pre-reduction kiln (1) is provided with a pre-reduction kiln discharge outlet (102); a burner (103) is arranged at a discharge port (102) of the pre-reduction kiln, and the burner (103) is respectively connected with a fuel conveying pipeline (L1) and an air conveying pipeline (L2); the top of the deep reduction kiln (2) is provided with a deep reduction kiln feed inlet (201), and the bottom of the deep reduction kiln (2) is provided with a deep reduction kiln discharge outlet (202); the discharge hole (102) of the pre-reduction kiln is communicated with the feed hole (201) of the deep reduction kiln.
2. The comprehensive utilization and treatment device for vanadium titano-magnetite resources, according to claim 1, is characterized in that: the device also comprises a pre-treatment device (3); the top of the pretreatment device (3) is provided with a pretreatment device feed inlet (301), the bottom of the pretreatment device (3) is provided with a pretreatment device discharge outlet (302), and the side wall of the pretreatment device (3) is provided with an air inlet (303) and an air outlet (304); an air inlet (303) of the pretreatment device (3) is communicated with a discharge hole (102) of the pre-reduction kiln.
3. The comprehensive utilization and treatment device for vanadium titano-magnetite resources, according to claim 2, is characterized in that: the discharge hole (302) of the pretreatment device is connected with the feed hole (101) of the pre-reduction kiln through a material conveying device (L3), and the material dried and pretreated by the pretreatment device (3) is conveyed to the feed hole (101) of the pre-reduction kiln through the material conveying device (L3).
4. The vanadium titano-magnetite resource comprehensive utilization processing apparatus according to any one of claims 1 to 3, characterized in that: a fixed distributing screen (4) is arranged between the discharge hole (102) of the pre-reduction kiln and the feed hole (201) of the deep reduction kiln; the material pre-reduced by the pre-reduction kiln (1) enters the deep reduction kiln (2) after passing through a fixed distributing sieve (4).
5. The vanadium titano-magnetite resource comprehensive utilization processing apparatus according to any one of claims 1 to 3, characterized in that: the pre-reduction kiln (1) is a reduction rotary kiln; and/or
The deep reduction kiln (2) is a microwave reduction kiln; the microwave reducing kiln is provided with a microwave emission source (203).
6. The comprehensive utilization and treatment device for vanadium titano-magnetite resources, according to claim 4, is characterized in that: the pre-reduction kiln (1) is a reduction rotary kiln; and/or
The deep reduction kiln (2) is a microwave reduction kiln; the microwave reducing kiln is provided with a microwave emission source (203).
7. The comprehensive utilization and treatment device for vanadium titano-magnetite resources, according to claim 5, is characterized in that: a temperature detection device (5) is arranged in the reduction rotary kiln; and/or
An infrared thermal imager (6) is arranged in the reduction rotary kiln.
8. The comprehensive utilization and treatment device for vanadium titano-magnetite resources, according to claim 6, is characterized in that: a temperature detection device (5) is arranged in the reduction rotary kiln; and/or
An infrared thermal imager (6) is arranged in the reduction rotary kiln.
9. The comprehensive utilization and treatment device for vanadium titano-magnetite resources, according to claim 7 or 8, is characterized in that: the temperature detection device (5) is a thermocouple.
10. The comprehensive utilization and treatment device for vanadium titano-magnetite resources, according to claim 5, is characterized in that: a temperature detection device (5) is arranged in the microwave reduction kiln.
11. The comprehensive utilization and treatment device for vanadium titano-magnetite resources, according to claim 6, is characterized in that: a temperature detection device (5) is arranged in the microwave reduction kiln.
12. The comprehensive utilization and treatment device for vanadium titano-magnetite resources as claimed in claim 10 or 11, wherein: the temperature detection device (5) is a thermocouple.
13. The vanadium titano-magnetite resource comprehensive utilization processing apparatus according to any one of claims 1 to 3, 6 to 8, 10 to 11, characterized in that: the device also comprises a grinding and selecting separation device (7); a grinding and separating device feeding hole (701) is formed in the top of the grinding and separating device (7); an iron phase discharge port (702) and a slag phase discharge port (703) are arranged at the bottom of the grinding and separating device (7); the feed inlet (701) of the grinding and separating device is communicated with the discharge outlet (202) of the deep reduction kiln.
14. The comprehensive utilization and treatment device for vanadium titano-magnetite resources, according to claim 4, is characterized in that: the device also comprises a grinding and selecting separation device (7); a grinding and separating device feeding hole (701) is formed in the top of the grinding and separating device (7); an iron phase discharge port (702) and a slag phase discharge port (703) are arranged at the bottom of the grinding and separating device (7); the feed inlet (701) of the grinding and separating device is communicated with the discharge outlet (202) of the deep reduction kiln.
15. The comprehensive utilization and treatment device for vanadium titano-magnetite resources, according to claim 2 or 3, is characterized in that: an air inlet (303) of the pretreatment device (3) is connected with an exhaust pipeline (L4), and a fan (8) is arranged on the exhaust pipeline (L4).
16. The comprehensive utilization and treatment device for vanadium titano-magnetite resources, according to claim 15, is characterized in that: the other end of the exhaust duct (L4) is connected to the burner (103).
17. The vanadium titano-magnetite resource comprehensive utilization processing apparatus according to any one of claims 1 to 3, 6 to 8, 10 to 11, 14, 16, characterized in that: the temperature in the pre-reduction kiln (1) is controlled below 1000 ℃; and/or
The temperature in the deep reduction kiln (2) is controlled within the range of 1000-1400 ℃.
18. The comprehensive utilization and treatment device for vanadium titano-magnetite resources, according to claim 4, is characterized in that: the temperature in the pre-reduction kiln (1) is controlled below 1000 ℃; and/or
The temperature in the deep reduction kiln (2) is controlled within the range of 1000-1400 ℃.
19. The comprehensive utilization and treatment device for vanadium titano-magnetite resources, according to claim 17, is characterized in that: the temperature in the pre-reduction kiln (1) is controlled below 950 ℃; and/or
The temperature in the deep reduction kiln (2) is controlled within the range of 1050 ℃ and 1300 ℃.
20. The comprehensive utilization and treatment device for vanadium titano-magnetite resources, according to claim 18, is characterized in that: the temperature in the pre-reduction kiln (1) is controlled below 950 ℃; and/or
The temperature in the deep reduction kiln (2) is controlled within the range of 1050 ℃ and 1300 ℃.
21. The comprehensive utilization and treatment device for vanadium titano-magnetite resources as claimed in claim 19 or 20, wherein: the temperature in the pre-reduction kiln (1) is controlled below 900 ℃; and/or
The temperature in the deep reduction kiln (2) is controlled within the range of 1100-1200 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920842829.4U CN210261845U (en) | 2019-06-05 | 2019-06-05 | Vanadium titano-magnetite resource comprehensive utilization processing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920842829.4U CN210261845U (en) | 2019-06-05 | 2019-06-05 | Vanadium titano-magnetite resource comprehensive utilization processing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210261845U true CN210261845U (en) | 2020-04-07 |
Family
ID=70040881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920842829.4U Active CN210261845U (en) | 2019-06-05 | 2019-06-05 | Vanadium titano-magnetite resource comprehensive utilization processing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210261845U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113122703A (en) * | 2021-04-13 | 2021-07-16 | 湖南省中晟环装科技有限公司 | Device and method for integrated treatment of sulfate slag through dearsenification, dezincification and reduction roasting |
-
2019
- 2019-06-05 CN CN201920842829.4U patent/CN210261845U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113122703A (en) * | 2021-04-13 | 2021-07-16 | 湖南省中晟环装科技有限公司 | Device and method for integrated treatment of sulfate slag through dearsenification, dezincification and reduction roasting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101413055B (en) | Process for directly preparing nickel-iron alloy powder from laterite-nickel ore | |
| CN101294242B (en) | Method for extracting multi-metallic element from high chromium vanadium titanium octahedral iron ore | |
| CN111378851B (en) | System and method for treating laterite nickel ore | |
| CN101871053B (en) | Method for smelting ferronickel or nismatte with laterite-nickel ore | |
| CN101323904A (en) | Method for enriching nickel iron ore concentrate from laterite type nickel ore by means of rotary kiln | |
| CN203728902U (en) | Integrated solid waste gas ash and zinc-containing ferrovanadium slag recovery device | |
| CN104087753B (en) | A kind of lateritic nickel ore self catalyzed reduction produces the method for nickelic grade ferronickel powder | |
| CN103255255A (en) | Gas-based shaft furnace direct reduction-electric furnace smelting separation process of vanadium titano-magnetite | |
| CN102373329B (en) | Method for gathering nickel and iron from laterite-nickel ores | |
| CN101418370A (en) | Novel industrialization method for comprehensive utilization of vanadium ferrotitanium ore concentrate | |
| CN102021351A (en) | Integrated approach to enriching nickel from nickel oxide laterite ore | |
| CN108380360B (en) | Production process of steel slag and iron fine powder | |
| CN104195279A (en) | Process for preparing ferric-nickel from laterite-nickel ore | |
| CN102851490B (en) | Method for preparing high-quality calcine by fluidized reduction roasting of nickel oxide ore | |
| CN105838839B (en) | It prepares the method for granulated iron and prepares the system of granulated iron | |
| CN210261845U (en) | Vanadium titano-magnetite resource comprehensive utilization processing apparatus | |
| CN212247156U (en) | System for handle laterite-nickel ore deposit | |
| CN105463214B (en) | A kind of method that high ferronickel is produced using low poor grade lateritic nickel ore | |
| CN110039064A (en) | A method of reproducibility iron powder is prepared using blast furnace dust smelted furnace cinder | |
| CN105969928B (en) | Prepare system and its application of reduced iron | |
| CN205990416U (en) | A kind of utilization body of heater fume afterheat the system of high efficiente callback iron-containing resource | |
| CN205990447U (en) | A kind of reduction reaction system of the aqueous pelletizing of efficient process lateritic nickel ore | |
| CN110029234A (en) | A method of zinc oxide is prepared using blast furnace dust | |
| CN206607281U (en) | The system for preparing reduced iron | |
| CN109971907A (en) | A kind of method that high-speed rail copper ashes and ferric manganese ore collaborative SCM-magnetic separation prepare cupric iron powder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |