WO2019015518A1 - 稀土精矿连续分解设备 - Google Patents

稀土精矿连续分解设备 Download PDF

Info

Publication number
WO2019015518A1
WO2019015518A1 PCT/CN2018/095292 CN2018095292W WO2019015518A1 WO 2019015518 A1 WO2019015518 A1 WO 2019015518A1 CN 2018095292 W CN2018095292 W CN 2018095292W WO 2019015518 A1 WO2019015518 A1 WO 2019015518A1
Authority
WO
WIPO (PCT)
Prior art keywords
rare earth
spiral blade
liquid
earth concentrate
continuous decomposition
Prior art date
Application number
PCT/CN2018/095292
Other languages
English (en)
French (fr)
Inventor
唐建文
杜国山
羡鹏飞
邱爽
周文龙
覃波
Original Assignee
中国恩菲工程技术有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 中国恩菲工程技术有限公司 filed Critical 中国恩菲工程技术有限公司
Priority to AU2018303509A priority Critical patent/AU2018303509B2/en
Priority to KR1020197033567A priority patent/KR102279416B1/ko
Priority to JP2020517259A priority patent/JP6829342B2/ja
Priority to BR112019025181-2A priority patent/BR112019025181B1/pt
Priority to RU2019136429A priority patent/RU2739891C1/ru
Publication of WO2019015518A1 publication Critical patent/WO2019015518A1/zh
Priority to ZA2019/07016A priority patent/ZA201907016B/en
Priority to US16/664,145 priority patent/US11578385B2/en

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/02—Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/62—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis comprising liquid feeding, e.g. spraying means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/72—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices
    • B01F27/721—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices with two or more helices in the same receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/72—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices
    • B01F27/726—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices with two helices with opposite pitch on the same shaft; with two helices on the same axis, driven in opposite directions or at different speeds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F29/00—Mixers with rotating receptacles
    • B01F29/80—Mixers with rotating receptacles rotating about a substantially vertical axis
    • B01F29/84—Mixers with rotating receptacles rotating about a substantially vertical axis with propellers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/712—Feed mechanisms for feeding fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/7179—Feed mechanisms characterised by the means for feeding the components to the mixer using sprayers, nozzles or jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/71805—Feed mechanisms characterised by the means for feeding the components to the mixer using valves, gates, orifices or openings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/75—Discharge mechanisms
    • B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
    • B01F35/7547—Discharge mechanisms characterised by the means for discharging the components from the mixer using valves, gates, orifices or openings
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes
    • C22B1/06—Sulfating roasting
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B59/00—Obtaining rare earth metals
    • 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

Definitions

  • the present invention relates to the field of metallurgical technology, and in particular to the continuous decomposition equipment for rare earth concentrates.
  • Baotou mixed ore (mixed ore of fluorocarbon lanthanum rare earth and monazite) and bastnasite are important components of rare earth ore in China.
  • the current industrial method for treating such ore is mainly concentrated sulfuric acid roasting. The process is continuous and easy to control, and is easy to be mass-produced. However, the method decomposes the mixed ore at high temperature, and the strontium in the ore enters the slag in the form of strontium pyrophosphate, causing waste of cesium resources and radioactive pollution; Sulfur exhaust gas recycling is difficult.
  • the current industrial acid hydrolysis method is mainly oxidative roasting-hydrochloric acid. This method is characterized by small investment, but there are problems such as discontinuous process, difficulty in recycling strontium and fluorine in slag and wastewater, and pollution to the environment.
  • the decomposition rate of rare earth can be More than 95%, and more than 90% of the cesium enters the leachate, so that the strontium in the rare earth ore can be effectively recovered.
  • this process is rarely used in production at present, mainly because the rare earth concentrate and concentrated sulfuric acid will change from slurry to semi-dry after mixing reaction, and gradually form porous cake-like materials, which is difficult to carry out continuous dynamic production.
  • the present invention proposes a rare earth concentrate continuous decomposition apparatus.
  • the equipment can realize efficient and continuous decomposition of rare earth concentrates, ensure continuous operation of production, and significantly improve the decomposition rate of rare earth concentrates.
  • the invention provides a continuous decomposition apparatus for rare earth concentrates.
  • the rare earth concentrate continuous decomposition apparatus comprises: a body having a feed inlet, two liquid addition ports, and two exhaust gas outlets, the inlet opening being located in the middle of the top of the body Positioned, the two liquid filling ports are respectively located at two sides of the inlet, the two exhaust gas outlets are respectively located at two sides of the inlet, and the bottom of the body has two discharge ports.
  • the two discharge ports are respectively disposed adjacent to the two ends of the body, the side wall of the body has a heat preservation chamber, the heat preservation chamber has a heat insulation liquid inlet and a heat preservation liquid outlet;
  • the two-way propeller the two-way propeller is set Extending in the body body and along a length direction of the body, the bidirectional propeller includes: a rotating shaft, the rotating shaft is divided into a first shaft segment and a second shaft segment; the first spiral blade and the second spiral blade a first spiral blade disposed on the first shaft segment, the second spiral blade being disposed on the second shaft segment, a spiral direction of the first spiral blade and a spiral direction of the second spiral blade Instead of the stated The first spiral blade is discharged toward the first end of the rotating shaft and the second spiral blade is discharged toward the second end of the rotating shaft; and the driving assembly is connected to the rotating shaft.
  • the rare earth concentrate continuous decomposition apparatus is added to the apparatus from the inlet through the mixture of the rare earth concentrate and the concentrated sulfuric acid, and the mixture is driven to the both ends of the apparatus under the driving of the bidirectional propeller.
  • the heat transfer oil or steam is introduced to heat the reaction system; further, as the bidirectional propeller drives, the mixed material is converted into a loose porous solid phase, thereby further increasing the decomposition rate of the rare earth concentrate in the mixture, and finally
  • the acid-resolved rare earth concentrate is discharged from the discharge port, and the exhaust gas generated during the decomposition process can be discharged from the exhaust gas and processed. Therefore, the equipment can realize high-efficiency continuous decomposition of rare earth concentrate, ensure continuous operation of production, and significantly improve
  • rare earth concentrate continuous decomposition apparatus may further have the following additional technical features:
  • the two liquid inlets and the two exhaust gas outlets are disposed opposite each other in the longitudinal direction of the body with respect to the inlet.
  • the liquid addition port is located between the feed port and the exhaust gas outlet, and is disposed adjacent to the feed port.
  • the rare earth concentrate continuous decomposition apparatus further comprises: two liquid discharge tubes horizontally disposed at an upper portion of the body and connected to the liquid addition port
  • the spray pipe has a plurality of liquid outlet holes.
  • the liquid ejecting tube is disposed in the width direction of the body.
  • the plurality of liquid outlets are located in a lower portion of the liquid discharge tube.
  • the two-way propellers are two and arranged in parallel.
  • the drive assembly includes: a gear coupled to a rotating shaft of the two bidirectional propellers, a speed reducer, the reducer being coupled to the gear through a coupling; a motor, The motor is coupled to the reducer.
  • the rare earth concentrate continuous decomposition apparatus further includes: a plurality of temperature measuring members disposed on a sidewall of the body.
  • the plurality of temperature measuring members are equally spaced on the two side walls in the longitudinal direction of the body.
  • FIG. 1 is a schematic structural view of a rare earth concentrate continuous decomposition apparatus according to an embodiment of the present invention
  • FIG. 2 is a schematic view showing the structure of a rare earth concentrate continuous decomposition apparatus according to still another embodiment of the present invention.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements, unless otherwise specified Limited.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first feature "above”, “above” and “above” the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.
  • the invention provides a continuous decomposition apparatus for rare earth concentrates.
  • the rare earth concentrate continuous decomposition apparatus comprises: a body 100, a bidirectional propeller 200, and a drive assembly 300.
  • a rare earth concentrate continuous decomposition apparatus according to an embodiment of the present invention will be described in detail below with reference to FIGS. 1 to 2:
  • the top of the body 100 has a feed inlet 101, two liquid addition ports 102, and two exhaust gas outlets 103.
  • the inlet port 101 is located at the middle of the top of the body 100, and the two liquid addition ports 102 are respectively located in the inlet.
  • two exhaust gas outlets 103 are respectively located at two sides of the inlet port 101, and the bottom of the body 100 has two discharge ports 104, and the two discharge ports 104 are respectively disposed adjacent to both ends of the body 100.
  • the industrial water or dilute acid is sprayed into the body through the filling port 102, so that the concentrated sulfuric acid in the mixture is diluted and exothermic, and the acid hydrolysis reaction is accelerated, so that the mixture is finished in the process of moving to both ends of the device.
  • the mineral is decomposed and discharged from the two discharge ports 104 respectively disposed at the two ends of the bottom of the body 100, and the exhaust gas generated by the reaction can be discharged from the equipment by the exhaust gas outlet 103.
  • the two fill ports 102 and the two exhaust outlets 103 are each disposed opposite the length of the body 100 relative to the inlet 101.
  • the fill port 102 is located between the feed port 101 and the exhaust gas outlet 103 and is disposed adjacent to the feed port 101.
  • the sidewall of the body 100 further has a thermal insulation chamber (not shown in the drawing), and the thermal insulation chamber has a thermal liquid inlet 105 and a thermal liquid outlet 106, thereby being able to pass through the thermal insulation chamber
  • the heat transfer oil or hot steam is supplied to heat or heat the mixture in the body 100, thereby further improving the efficiency of the decomposition reaction of the rare earth concentrate.
  • the bidirectional propeller 200 is disposed within the body 100 and extends along the length direction of the body 100.
  • the bidirectional propeller 200 includes: a rotating shaft 210, a first spiral blade 220, and a second spiral blade (not shown in the drawings)
  • the rotating shaft 210 is divided into a first shaft segment (not shown in the drawing) and a second shaft segment (not shown in the drawing);
  • the first spiral blade 220 is disposed on the first shaft segment, and the second spiral blade is disposed In the second shaft segment, the spiral direction of the first spiral blade is opposite to the spiral direction of the second spiral blade such that the first spiral blade is discharged toward the first end of the rotating shaft and the second spiral blade is discharged toward the second end of the rotating shaft;
  • the mixed material fed from the inlet port 101 can be simultaneously moved toward both ends of the body, thereby further improving the efficiency of the decomposition reaction of the rare earth concentrate.
  • the bidirectional propellers 200 are arranged in two and in parallel, whereby the efficiency of the decomposition reaction of the rare earth concentrate can be further improved.
  • the drive assembly 300 is coupled to the spindle 210 for driving the bi-directional propeller 200 to rotate.
  • the drive assembly 300 includes a gear 310, a speed reducer 320, a coupling 330, and a motor 340.
  • the gear 310 is coupled to the rotating shaft 210 of the two bidirectional propellers 200, and the speed reducer 320 is coupled to the gear 310 via a coupling 330; the motor 340 is coupled to the speed reducer 320.
  • the above-described rare earth concentrate continuous decomposition apparatus may further include: two liquid discharge pipes 400, the two liquid discharge pipes 400 are horizontally disposed at an upper portion in the body 100 and connected to the liquid supply port 102, and sprayed
  • the tube 400 has a plurality of liquid outlet holes 410, whereby the industrial water or the dilute acid added by the liquid addition port can be sprayed through the liquid discharge tube, thereby further improving the efficiency of the decomposition reaction of the rare earth concentrate.
  • the liquid discharge pipe 400 can be disposed in the width direction of the body 100, whereby the efficiency of the decomposition reaction of the rare earth concentrate can be further improved.
  • a plurality of liquid outlet holes 410 are located in the lower portion of the liquid discharge tube 400.
  • the rare earth concentrate continuous decomposition apparatus may further include: a plurality of temperature measuring members 500, and the plurality of temperature measuring members 500 are disposed on the sidewall of the body 100, thereby passing through the temperature measuring member 500. The temperature inside the holding chamber and the inside of the body is detected.
  • the plurality of temperature measuring members 500 may be disposed at equal intervals on the two side walls in the longitudinal direction of the body 100.
  • the direction from the inlet to the outlet can be divided into four virtual regions of a contact zone, a ripening zone, a calcination zone and a crushing zone.
  • the mixture can be contacted with industrial water or dilute acid in the contact zone, wherein the concentrated sulfuric acid is diluted to generate a large amount of heat and steam, and the released heat can accelerate the decomposition reaction of the rare earth concentrate and the concentrated sulfuric acid, so that the mixture expands from a slurry to a slurry.
  • the semi-dry material With the driving of the bidirectional propeller, the semi-dry material enters the ripening zone, and then the heat transfer oil or hot steam is added to the heat preservation chamber through the inlet of the heat preservation liquid, and the temperature of the corresponding area in the body is raised to 130-210 ° C. (The temperature can be automatically adjusted after measurement by the temperature measuring component) to accelerate the ripening reaction of the rare earth concentrate and the concentrated sulfuric acid.
  • the semi-dry material is transformed into a porous dry material, and the dryness is accompanied by the shearing action of the bidirectional propeller. The material is changed from a block to a powder and enters the calcination zone.
  • the temperature is adjusted to 250-280 ° C, so that the powder material continues to be deeply decomposed.
  • the powder material Under repeated agitation of the bidirectional propeller, the powder material can be further uniformly heated to shorten the reaction time, and then With the movement of the material, the solid phase formed has the characteristics of loose porosity, which can further improve the acid hydrolysis rate of the rare earth concentrate.
  • An acid solution to give the final product discharged from the discharge port, the exhaust gas produced in the reaction is discharged from the exhaust outlet and for recovering valuable fluorine.
  • the rare earth concentrate continuous decomposition device of the invention can avoid the mixing unevenness and local agglomeration phenomenon in the acid hydrolysis process of the rare earth concentrate, effectively dilute the heat generated by the carburet with concentrated sulfuric acid, and realize the rare earth concentrate and sulfuric acid. Continuous decomposition to ensure continuous production.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Geology (AREA)
  • Metallurgy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Accessories For Mixers (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

提供了稀土精矿连续分解设备，包括：本体，其顶部具有入料口、两个加液口、两个尾气出口，其底部具有两个出料口，其侧壁内具有保温腔室，保温腔室具有保温液入口和保温液出口；双向螺旋桨，双向螺旋桨设置在本体内且沿本体的长度方向上延伸，双向螺旋桨包括：转轴、第一螺旋叶片和第二螺旋叶片，第一螺旋叶片设置在转轴的第一轴段上，第二螺旋叶片设置在转轴的第二轴段上，第一螺旋叶片的螺旋方向与第二螺旋叶片的螺旋方向相反以便第一螺旋叶片朝向转轴的第一端排料且第二螺旋叶片朝向转轴的第二端排料；驱动组件，其与转轴相连。

Description

稀土精矿连续分解设备 技术领域
本发明涉及冶金技术领域，具体而言，本发明涉及稀土精矿连续分解设备。
背景技术
包头混合矿(氟碳铈稀土和独居石的混合矿)和氟碳铈矿是我国稀土矿的重要组成部分。针对包头混合矿的特点，目前处理此类矿的工业方法主要是浓硫酸焙烧法。该法工艺连续易控制，易于大规模生产，但该法由于在高温下对混合矿进行分解，矿中的钍以焦磷酸钍形态进入渣中，造成钍资源浪费和放射性污染；且含氟和硫的废气回收利用难度大。针对氟碳铈矿的特点，目前工业酸解方法主要是氧化焙烧-盐酸优溶。此法特点是投资小，但存在工艺不连续，钍和氟分散在渣和废水中难以回收，对环境造成污染等问题。
因此，现有的处理稀土精矿的手段仍有待改进。
发明内容
本发明是基于发明人对以下问题和事实的发现而提出的：
发明人在对处理稀土精矿方法的研究中发现，目前已有国内相关科研院所提出采用浓硫酸低温焙烧技术分解稀土矿，在低温(150～300℃)条件焙烧精矿，稀土分解率可达95％以上，且大于90％的钍进入浸出液，从而能有效回收稀土矿中的钍。然而，该工艺目前鲜有在生产中应用，主要原因在于稀土精矿与浓硫酸混合反应后会由浆状转变为半干状，逐渐形成多孔糕状物料，难以进行连续化动态生产。
鉴于此，本发明提出了稀土精矿连续分解设备。采用该设备可以实现稀土精矿高效连续分解，确保生产的连续运行，并显著提高稀土精矿的分解率。
在本发明的一个方面，本发明提出了一种稀土精矿连续分解设备。根据本发明的实施例，该稀土精矿连续分解设备包括：本体，所述本体顶部具有入料口、两个加液口、两个尾气出口，所述入料口位于所述本体顶部的中间位置，所述两个加液口分别位于所述入料口的两侧，所述两个尾气出口分别位于所述入料口的两侧，所述本体的底部具有两个出料口，所述两个出料口分别邻近所述本体的两端设置，所述本体的侧壁内具有保温腔室，所述保温腔室具有保温液入口和保温液出口；双向螺旋桨，所述双向螺旋桨设置在所述本体内且沿所述本体的长度方向上延伸，所述双向螺旋桨包括：转轴，所述转 轴分为第一轴段和第二轴段；第一螺旋叶片和第二螺旋叶片，所述第一螺旋叶片设置在所述第一轴段上，所述第二螺旋叶片设置在所述第二轴段上，所述第一螺旋叶片的螺旋方向与所述第二螺旋叶片的螺旋方向相反以便所述第一螺旋叶片朝向所述转轴的第一端排料且所述第二螺旋叶片朝向所述转轴的第二端排料；驱动组件，所述驱动组件与所述转轴相连。
根据本发明实施例的稀土精矿连续分解设备通过将稀土精矿与浓硫酸充分混合后的混合物料由入料口加入至设备内，在双向螺旋桨的驱动下，使混合物料向设备的两端移动，同时通过加液口向混合物料喷洒工业水或稀酸，以使浓硫酸稀释产生大量的热和蒸汽，从而进一步提高稀土精矿分解的效率，另一方面，还可以通过向保温腔室中通入导热油或蒸汽以对反应体系进行保温；进一步地，随着双向螺旋桨的驱动，混合物料转化为疏松多孔的固相物，从而可以进一步提高混合物料中稀土精矿的分解率，最终完成酸解的稀土精矿由出料口排出，分解过程中产生的尾气可以从尾气出口并进行处理。由此，采用该设备可以实现稀土精矿高效连续分解，确保生产的连续运行，并显著提高稀土精矿的分解率。
另外，根据本发明上述实施例的稀土精矿连续分解设备还可以具有如下附加的技术特征：
在本发明的一些实施例中，所述两个加液口和所述两个尾气出口均相对所述入料口在所述本体的长度方向上相对设置。
在本发明的一些实施例中，所述加液口位于所述入料口和所述尾气出口之间，且邻近所述入料口设置。
在本发明的一些实施例中，所述稀土精矿连续分解设备进一步包括：两个喷液管，所述两个喷液管水平设置在所述本体内的上部且与所述加液口相连，所述喷液管上具有多个出液孔。
在本发明的一些实施例中，所述喷液管在所述本体的宽度方向上设置。
在本发明的一些实施例中，所述多个出液孔位于所述喷液管的下部。
在本发明的一些实施例中，所述双向螺旋桨为两个且平行设置。
在本发明的一些实施例中，所述驱动组件包括：齿轮，所述齿轮与两个所述双向螺旋桨的转轴相连，减速器，所述减速器通过联轴器与所述齿轮相连；电机，所述电机与所述减速器相连。
在本发明的一些实施例中，所述稀土精矿连续分解设备进一步包括：多个测温件，所述多个测温设置在所述本体的侧壁上。
在本发明的一些实施例中，所述多个测温件等间距地设置在所述本体的长度方向上的两个侧壁上。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
附图是用来提供对本发明的进一步理解，并且构成说明书的一部分，与下面的具体实施方式一起用于解释本发明，但并不构成对本发明的限制。在附图中：
图1是根据本发明一个实施例的稀土精矿连续分解设备结构示意图；
图2是根据本发明再一个实施例的稀土精矿连续分解设备结构示意图。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征 在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本发明的一个方面，本发明提出了一种稀土精矿连续分解设备。根据本发明的实施例，该稀土精矿连续分解设备包括：本体100、双向螺旋桨200和驱动组件300。
下面参考图1～2对根据本发明实施例的稀土精矿连续分解设备进行详细描述：
根据本发明的实施例，本体100顶部具有入料口101、两个加液口102、两个尾气出口103，入料口101位于本体100顶部的中间位置，两个加液口102分别位于入料口101的两侧，两个尾气出口103分别位于入料口101的两侧，本体100的底部具有两个出料口104，两个出料口104分别邻近本体100的两端设置。由此，稀土精矿与浓硫酸经过充分混合后得到的混合物料可以由入料口101进入设备的本体100，在双向螺旋桨200的驱动下，混合物料向本体100长度方向上的两端运动，同时通过加液口102向本体内喷淋工业水或稀酸，以便使混合物料中的浓硫酸稀释放热，加速酸解反应，从而使混合物料在向设备两端运动过程中完成对稀土精矿的分解，并从分别设置在本体100底部两端的两个出料口104排出设备，反应产生的尾气可以由尾气出口103排出设备。
根据本发明的具体实施例，两个加液口102和两个尾气出口103均相对入料口101在本体100的长度方向上相对设置。
根据本发明的具体实施例，加液口102位于入料口101和尾气出口103之间，且邻近入料口101设置。
根据本发明的实施例，本体100的侧壁内还具有保温腔室(附图中未示出)，保温腔室具有保温液入口105和保温液出口106，由此，可以通过向保温腔室中供给导热油或热蒸汽以对本体100内的混合物进行保温或加热，从而进一步提高稀土精矿分解反应进行的效率。
根据本发明的实施例，双向螺旋桨200设置在本体100内且沿本体100的长度方向上延伸，双向螺旋桨200包括：转轴210、第一螺旋叶片220和第二螺旋叶片(附图中未示出)，转轴210分为第一轴段(附图中未示出)和第二轴段(附图中未示出)；第一螺旋叶片220设置在第一轴段上，第二螺旋叶片设置在第二轴段上，第一螺旋叶片的螺旋方向与第二螺旋叶片的螺旋方向相反以便第一螺旋叶片朝向转轴的第一端排料且第二螺旋叶片朝向转轴的第二端排料；由此，可以使由入料口101加入的混合物料同时向本体的两端的运动，从而进一步提高稀土精矿分解反应进行的效率。
根据本发明的具体实施例，双向螺旋桨200为两个且平行设置，由此，可以进一步提高稀土精矿分解反应进行的效率。
根据本发明的实施例，驱动组件300与转轴210相连，以便驱动双向螺旋桨200转动。
根据本发明的具体实施例，驱动组件300包括齿轮310、减速器320、联轴器330和电机340。齿轮310与两个双向螺旋桨200的转轴210相连，减速器320通过联轴器330与齿轮310相连；电机340与减速器320相连。
根据本发明的实施例，上述稀土精矿连续分解设备还可以进一步包括：两个喷液管400，两个喷液管400水平设置在本体100内的上部且与加液口102相连，喷液管400上具有多个出液孔410，由此，可以通过喷液管将由加液口加入的工业水或稀酸进行喷淋，从而进一步提高稀土精矿分解反应进行的效率。
根据本发明的具体实施例，喷液管400可以在本体100的宽度方向上设置，由此，可以进一步提高稀土精矿分解反应进行的效率。
根据本发明的具体实施例，多个出液孔410位于喷液管400的下部。
根据本发明的实施例，上述稀土精矿连续分解设备还可以进一步包括：多个测温件500，多个测温件500设置在本体100的侧壁上，由此，可以通过测温件500检测保温腔室和本体内部的温度。
根据本发明的具体实施例，多个测温件500可以等间距地设置在本体100的长度方向上的两个侧壁上。
根据本发明的实施例，在本体内，由入料口至出料口方向可以分为接触区、熟化区、焙烧区和粉碎区四个虚拟区域。混合物料可以在接触区与工业水或稀酸接触，其中的浓硫酸稀释产生大量的热和蒸汽，所释放的热量可以加速稀土精矿与浓硫酸的分解反应，使得混合物料由浆状膨胀为半干状物料，随着双向螺旋桨的驱动，半干物料进入熟化区，进而通过保温液入口向保温腔室中加入导热油或热蒸汽，将本体内对应区域的温度升高至130～210℃(温度可由测温件测定后自动调节)，以加速稀土精矿与浓硫酸的熟化反应，经熟化反应后，半干物料转变为多孔干性物料，随着双向螺旋桨的剪切作用，干性物料由块状转变为粉末状并进入焙烧区，同时调节温度至250～280℃，使粉末物料继续深度分解，在双向螺旋桨的反复搅动下，粉末物料可以进一步均匀受热以缩短反应时间，进而随着物料的运动，生成的固相物具有疏松多孔的特性，由此可以进一步提高稀土精矿的酸解率，最终得到酸解产物由出料口排出，反应中生产的尾气由尾气出口排出并用于回收有价氟元素。由此，本发明的稀土精矿连续分解设备可以避免稀土精矿酸解过程 中的混合不均匀及局部团聚现象，有效地利用浓硫酸稀释放车所生产的热量，并实现稀土精矿与硫酸的连续分解，确保生产的连续进行。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (10)

  1. 一种稀土精矿连续分解设备，其特征在于，包括：
    本体，所述本体顶部具有入料口、两个加液口、两个尾气出口，所述入料口位于所述本体顶部的中间位置，所述两个加液口分别位于所述入料口的两侧，所述两个尾气出口分别位于所述入料口的两侧，所述本体的底部具有两个出料口，所述两个出料口分别邻近所述本体的两端设置，所述本体的侧壁内具有保温腔室，所述保温腔室具有保温液入口和保温液出口；
    双向螺旋桨，所述双向螺旋桨设置在所述本体内且沿所述本体的长度方向上延伸，所述双向螺旋桨包括：
    转轴，所述转轴分为第一轴段和第二轴段；
    第一螺旋叶片和第二螺旋叶片，所述第一螺旋叶片设置在所述第一轴段上，所述第二螺旋叶片设置在所述第二轴段上，所述第一螺旋叶片的螺旋方向与所述第二螺旋叶片的螺旋方向相反以便所述第一螺旋叶片朝向所述转轴的第一端排料且所述第二螺旋叶片朝向所述转轴的第二端排料；
    驱动组件，所述驱动组件与所述转轴相连。
  2. 根据权利要求1所述的稀土精矿连续分解设备，其特征在于，所述两个加液口和所述两个尾气出口均相对所述入料口在所述本体的长度方向上相对设置。
  3. 根据权利要求1或2所述的稀土精矿连续分解设备，其特征在于，所述加液口位于所述入料口和所述尾气出口之间，且邻近所述入料口设置。
  4. 根据权利要求1～3任一项所述的稀土精矿连续分解设备，其特征在于，进一步包括：
    两个喷液管，所述两个喷液管水平设置在所述本体内的上部且与所述加液口相连，所述喷液管上具有多个出液孔。
  5. 根据权利要求4所述的稀土精矿连续分解设备，其特征在于，所述喷液管在所述本体的宽度方向上设置。
  6. 根据权利要求5所述的稀土精矿连续分解设备，其特征在于，所述多个出液孔位于所述喷液管的下部。
  7. 根据权利要求1～6任一项所述的稀土精矿连续分解设备，其特征在于，所述双向螺旋桨为两个且平行设置。
  8. 根据权利要求1～7所述的稀土精矿连续分解设备，其特征在于，所述驱动组件包括：
    齿轮，所述齿轮与两个所述双向螺旋桨的转轴相连，
    减速器，所述减速器通过联轴器与所述齿轮相连；
    电机，所述电机与所述减速器相连。
  9. 根据权利要求1～8所述的稀土精矿连续分解设备，其特征在于，进一步包括：
    多个测温件，所述多个测温件设置在所述本体的侧壁上。
  10. 根据权利要求9所述的稀土精矿连续分解设备，其特征在于，所述多个测温件等间距地设置在所述本体的长度方向上的两个侧壁上。
PCT/CN2018/095292 2017-07-17 2018-07-11 稀土精矿连续分解设备 WO2019015518A1 (zh)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AU2018303509A AU2018303509B2 (en) 2017-07-17 2018-07-11 Apparatus for continuous decomposition of rare earth concentrate
KR1020197033567A KR102279416B1 (ko) 2017-07-17 2018-07-11 희토류 정광을 연속적으로 분해하는 장치
JP2020517259A JP6829342B2 (ja) 2017-07-17 2018-07-11 希土類濃縮鉱石を連続的に分解するための装置
BR112019025181-2A BR112019025181B1 (pt) 2017-07-17 2018-07-11 Dispositivo para decompor continuamente um minério concentrado de terras-raras
RU2019136429A RU2739891C1 (ru) 2017-07-17 2018-07-11 Аппарат для непрерывного вскрытия концентрата редкоземельных элементов
ZA2019/07016A ZA201907016B (en) 2017-07-17 2019-10-24 Apparatus for continuous decomposition of rare earth concentrate
US16/664,145 US11578385B2 (en) 2017-07-17 2019-10-25 Device for continuously decomposing rare earth concentrate ore

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710581580.1 2017-07-17
CN201710581580.1A CN107287457B (zh) 2017-07-17 2017-07-17 稀土精矿连续分解设备

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US16/664,145 Continuation US11578385B2 (en) 2017-07-17 2019-10-25 Device for continuously decomposing rare earth concentrate ore

Publications (1)

Publication Number Publication Date
WO2019015518A1 true WO2019015518A1 (zh) 2019-01-24

Family

ID=60100983

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/095292 WO2019015518A1 (zh) 2017-07-17 2018-07-11 稀土精矿连续分解设备

Country Status (9)

Country Link
US (1) US11578385B2 (zh)
JP (1) JP6829342B2 (zh)
KR (1) KR102279416B1 (zh)
CN (1) CN107287457B (zh)
AU (1) AU2018303509B2 (zh)
BR (1) BR112019025181B1 (zh)
RU (1) RU2739891C1 (zh)
WO (1) WO2019015518A1 (zh)
ZA (1) ZA201907016B (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107287457B (zh) * 2017-07-17 2023-01-13 中国恩菲工程技术有限公司 稀土精矿连续分解设备
CN108557847A (zh) * 2018-04-11 2018-09-21 宜春市鼎鑫高能科技有限公司 一种用于碳酸锂制备过程中的酸矿混合***
CN110681273B (zh) * 2019-11-08 2021-12-03 台州东润轴承有限公司 稀土溶解设备用溶解机构
KR102373303B1 (ko) * 2021-07-05 2022-03-10 김영환 도금된 폐플라스틱의 유가금속 회수장치

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2883396Y (zh) * 2006-02-21 2007-03-28 王鸿儒 硫酸分解稀土矿的新型环保焙烧炉
US20080138267A1 (en) * 2003-01-31 2008-06-12 Nanoproducts Corporation Nanoparticles of rare earth oxides
CN202010298U (zh) * 2011-03-17 2011-10-19 曹常玲 肝胆加药冲洗引流装置
CN203065540U (zh) * 2012-09-29 2013-07-17 内蒙古机电职业技术学院 一种电加热内热法分解混合型稀土精矿的电热分解槽
CN203112896U (zh) * 2013-03-15 2013-08-07 中冶东方工程技术有限公司 用于稀土精矿焙烧的物料混合和给料装置
WO2013163711A1 (en) * 2012-05-04 2013-11-07 Vale S.A. System and method for rare earths extraction
CN107287457A (zh) * 2017-07-17 2017-10-24 中国恩菲工程技术有限公司 稀土精矿连续分解设备
CN206902215U (zh) * 2017-07-17 2018-01-19 中国恩菲工程技术有限公司 稀土精矿连续分解设备

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1200788B (de) * 1963-11-23 1965-09-16 Bayer Ag Kontinuierlich arbeitende Misch- und Reaktionsmaschine
US3529938A (en) * 1967-10-06 1970-09-22 Upjohn Co Crystallization or leaching device
US4483625A (en) * 1981-02-10 1984-11-20 Technovators, Inc. Continuous solid particulate mixer conveyor having variable capacity
SU1095925A1 (ru) * 1983-02-28 1984-06-07 Государственный ордена Октябрьской Революции научно-исследовательский и проектный институт редкометаллической промышленности Реактор дл гидрометаллургических процессов
US4941132A (en) * 1989-05-04 1990-07-10 Blentech Corporation Reversing blender agitators
US5083506A (en) * 1991-03-06 1992-01-28 Blentech Corporation Continuous compartmented mixer
RU2026381C1 (ru) * 1991-07-09 1995-01-09 Акционерное общество открытого типа "Иргиредмет" Устройство для разложения руд и концентратов
US5299865A (en) * 1993-05-03 1994-04-05 Hayes & Stolz Industrial Manufacturing Company Inc. Counterpoise helical ribbon mixer
DE4427644A1 (de) * 1994-08-04 1996-02-08 Hese Gmbh Maschf Ernst Verfahren und Vorrichtung zur Behandlung von organischen Bio-Reststoffen
DE102004014163A1 (de) * 2003-03-17 2004-12-09 Behrendt, Gerhard, Prof.Dr. Verfahren und Vorrichtung zur Herstellung von Recyclat-Polyolen aus Polyestern
JP4451632B2 (ja) 2003-10-14 2010-04-14 株式会社アルバック 希土類系磁石材料の水素粉砕装置
EP2026923B1 (en) * 2006-04-07 2012-03-14 Showa Denko K.K. Apparatus for producing alloy and rare earth element alloy
KR200441504Y1 (ko) * 2007-02-20 2008-08-21 이효용 복합 가열식 음식물 처리장치
CN201039735Y (zh) * 2007-04-27 2008-03-26 段宝林 木浆板解纤加纤装置
KR100894215B1 (ko) * 2007-07-26 2009-04-22 김완수 더블호퍼비료살포기
CN202246783U (zh) * 2011-08-05 2012-05-30 吴泉锦 一种新型稀土碱浸物料反应装置
KR101361084B1 (ko) * 2012-03-02 2014-02-12 구성현 음식물 쓰레기 처리장치용 교반기
CN202610298U (zh) * 2012-05-20 2012-12-19 包头市锦园化工科技有限公司 硫酸分解稀土精矿的全自动高、中、低温可控焙烧***
CN204294204U (zh) * 2014-11-14 2015-04-29 山东城矿环保集团有限公司 热解反应器连续进料装置
CN104567422B (zh) * 2015-01-04 2018-11-30 张�诚 螺旋卸料装置和具有它的螺旋卸料机
CN204589269U (zh) * 2015-04-21 2015-08-26 永州市湘江稀土有限责任公司 一种采用远红外加热的独居石稀土矿碱法分解***
DE102015116476A1 (de) * 2015-09-29 2017-04-13 Outotec (Finland) Oy Verfahren und Anlage zur Herstellung von Uran oder einem Seltenen-Erden-Element
CN205398690U (zh) * 2016-03-09 2016-07-27 邓干平 一种新型稀土溶解罐
CN106119525B (zh) * 2016-07-21 2019-06-18 中国恩菲工程技术有限公司 稀土矿的提取装置及提取方法
CN206289284U (zh) * 2016-12-27 2017-06-30 清远市嘉禾稀有金属有限公司 一种高效性稀土溶解反应装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080138267A1 (en) * 2003-01-31 2008-06-12 Nanoproducts Corporation Nanoparticles of rare earth oxides
CN2883396Y (zh) * 2006-02-21 2007-03-28 王鸿儒 硫酸分解稀土矿的新型环保焙烧炉
CN202010298U (zh) * 2011-03-17 2011-10-19 曹常玲 肝胆加药冲洗引流装置
WO2013163711A1 (en) * 2012-05-04 2013-11-07 Vale S.A. System and method for rare earths extraction
CN203065540U (zh) * 2012-09-29 2013-07-17 内蒙古机电职业技术学院 一种电加热内热法分解混合型稀土精矿的电热分解槽
CN203112896U (zh) * 2013-03-15 2013-08-07 中冶东方工程技术有限公司 用于稀土精矿焙烧的物料混合和给料装置
CN107287457A (zh) * 2017-07-17 2017-10-24 中国恩菲工程技术有限公司 稀土精矿连续分解设备
CN206902215U (zh) * 2017-07-17 2018-01-19 中国恩菲工程技术有限公司 稀土精矿连续分解设备

Also Published As

Publication number Publication date
ZA201907016B (en) 2020-09-30
BR112019025181A2 (pt) 2020-06-16
KR20190139955A (ko) 2019-12-18
RU2739891C1 (ru) 2020-12-29
US20200056261A1 (en) 2020-02-20
CN107287457B (zh) 2023-01-13
JP2020522620A (ja) 2020-07-30
BR112019025181B1 (pt) 2023-04-11
JP6829342B2 (ja) 2021-02-10
AU2018303509A1 (en) 2019-11-21
KR102279416B1 (ko) 2021-07-20
AU2018303509B2 (en) 2021-04-01
US11578385B2 (en) 2023-02-14
CN107287457A (zh) 2017-10-24

Similar Documents

Publication Publication Date Title
WO2019015518A1 (zh) 稀土精矿连续分解设备
CN103072985B (zh) 用于制备高比表面积活性炭的连续碱活化装置及方法
CN104826571A (zh) 一种化工原料用反应装置
CN108017055A (zh) 椰壳制备超级活性炭的方法
CN105742576B (zh) 利用高温过热蒸汽干法制备磷酸铁锂前驱体的方法及装置
CN104815601A (zh) 一种工业真空加热反应釜
CN207405092U (zh) 一种建筑石膏冷却装置
CN111701559A (zh) 一种适用于氟化钙细粉制备氟化氢的卧式反应装置
CN206902215U (zh) 稀土精矿连续分解设备
CN204672188U (zh) 一种分隔式工业搅拌装置
CN212370210U (zh) 一种适用于氟化钙细粉制备氟化氢的卧式反应装置
CN209254611U (zh) 一种用于化工生产的加热设备
CN104815578A (zh) 一种多重工业物料搅拌机
CN204699696U (zh) 一种工业真空加热反应釜
CN204583044U (zh) 一种生产橡胶助剂的搅拌装置
CN208394796U (zh) 一种石墨保温砂的新型翻料行车
CN206199204U (zh) 一种硫酸铝压力反应釜
CN206631244U (zh) 一种卧式助晶机
CN207748336U (zh) 一种适用于高粘度含油污泥的储存进料撬装结构
CN205367753U (zh) 硫酸钾专用冷却推料车
CN207077604U (zh) 一种防火保温板生产设备
CN201962084U (zh) 一种制备稀土氟化物的装置
CN206883923U (zh) 一种处理磷石膏的设备
CN204848676U (zh) 一种亚磷酸液体肥生产用反应器
CN209848901U (zh) 一种卧式混合拌料反应装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18835788

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 20197033567

Country of ref document: KR

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2018303509

Country of ref document: AU

Date of ref document: 20180711

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2020517259

Country of ref document: JP

Kind code of ref document: A

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112019025181

Country of ref document: BR

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 112019025181

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20191128

122 Ep: pct application non-entry in european phase

Ref document number: 18835788

Country of ref document: EP

Kind code of ref document: A1