CN106500484B - Drying and pyrolyzing device for acid leaching pulp liquid - Google Patents

Drying and pyrolyzing device for acid leaching pulp liquid Download PDF

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Publication number
CN106500484B
CN106500484B CN201611074324.5A CN201611074324A CN106500484B CN 106500484 B CN106500484 B CN 106500484B CN 201611074324 A CN201611074324 A CN 201611074324A CN 106500484 B CN106500484 B CN 106500484B
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pyrolysis
slurry
heat source
disc
outer casing
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CN106500484A (en
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刘玉强
肖恭鑫
杨松林
甘宪福
孙治忠
刘元戎
段淑斌
杜昊
李正禄
张妮妮
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Jinchuan Group Co Ltd
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Jinchuan Group Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/18—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in moving dishes, trays, pans, or other mainly-open receptacles
    • F26B11/181—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in moving dishes, trays, pans, or other mainly-open receptacles the receptacle being a foraminous, perforated or open-structured drum or drum-like container, e.g. rotating around a substantially horizontal or vertical axis; the receptacle being multiple perforated drums, e.g. in superimposed arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements for supplying or controlling air or other gases for drying solid materials or objects
    • F26B21/40—Arrangements for supplying or controlling air or other gases for drying solid materials or objects using gases other than air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/04—Agitating, stirring, or scraping devices
    • 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

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  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Processing Of Solid Wastes (AREA)
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Abstract

一种酸浸矿浆液干燥热解装置，包括外壳体，内置于壳体里的矿浆液热解盘组，与盘组配套使用且内置于壳体的进料管、刮刀、钢刷及吸料装置，热源系统，传动装置。本发明的有益效果在于：与传统干燥液体物料的设备相比，该设备为立式结构，空间布置小，增大物料接触表面积，提高干燥热解效率，能耗有所下降；其次在传统圆盘干燥机基础上进行创新，采用外夹套式及圆盘中空内腔双加热系统，增加浆料的热解速率，同时浆液热解盘可进行间歇转动，其他辅助部件如刮刀、钢刷等均不转动，转动部件少，设备运行稳定性好，动力消耗低；再者干物料采用吸尘方式，与刮板溜槽结构相比，出料简单且彻底。

Figure 201611074324

An acid leaching ore slurry drying and pyrolysis device, comprising an outer shell, a ore slurry pyrolysis disk set built in the shell, a feeding pipe, a scraper, a steel brush and a suction material that are used together with the disk set and built into the shell Devices, heat source systems, transmissions. The beneficial effects of the present invention are: compared with the traditional equipment for drying liquid materials, the equipment is of a vertical structure, with small space layout, increased material contact surface area, improved drying and pyrolysis efficiency, and reduced energy consumption; Innovate on the basis of the disc dryer. It adopts the outer jacket type and the disc hollow inner cavity double heating system to increase the pyrolysis rate of the slurry. At the same time, the slurry pyrolysis disc can be rotated intermittently. Other auxiliary components such as scrapers, steel brushes, etc. All of them do not rotate, there are few rotating parts, the equipment has good running stability and low power consumption; in addition, the dry material adopts the vacuuming method, and compared with the scraper chute structure, the discharge is simple and thorough.

Figure 201611074324

Description

Drying and pyrolyzing device for acid leaching pulp liquid
Technical Field
The invention belongs to the technical field of ore resource wet smelting, and particularly relates to a drying pyrolysis device for acid leaching ore pulp liquid.
Background
In industrial production, after mineral resources such as ferronickel and the like are leached by an acid solution, the separation of nickel, iron and the like contained in a leaching solution is difficult, and the traditional processes such as evaporation, crystallization, calcination and the like are adopted, so that the process flow is complex, the equipment investment cost is high, and the energy consumption is relatively large. Compared with the traditional drying and pyrolysis equipment, the leaching solution is too complex in composition, moisture can be evaporated firstly in the drying and pyrolysis process, nitrogen oxide gas is generated through decomposition, the defects of unsmooth liquid hanging, low efficiency and the like exist in a paddle type drying machine and a roller type drying machine, a disc drying machine is used for drying solid materials with large humidity, liquid or slurry cannot be dried, and the defects that local material viscosity is too large, the materials are bonded on the disc wall and are difficult to clean, the discharging is complicated and the like exist.
Disclosure of Invention
The invention aims to solve the technical problems of complex process, difficult separation, overlarge energy consumption, low efficiency, unsmooth discharging and the like in the prior art, and provides the drying and pyrolyzing device for the acid leaching ore pulp liquid, which has high pyrolysis efficiency, relatively low energy consumption, simple discharging and stable operation.
The technical problem solved by the invention is realized by adopting the following technical scheme:
the utility model provides a dry pyrolysis device of acid leaching pulp liquid, includes the shell body, the shell body outside sets up external heating coil pipe, shell body upper end sets up the gas vent, the shell body lower extreme sets up the slag notch, suit thick liquid pyrolysis dish group on the transmission shaft in the middle of the shell body, the transmission shaft is hollow structure, thick liquid pyrolysis dish group includes thick liquid pyrolysis dish, with the supporting inlet pipe, scraper, steel brush and the auto sucking device that uses of thick liquid pyrolysis dish, inlet pipe, scraper, steel brush, auto sucking device are fixed to be set up on the shell body, are located thick liquid pyrolysis dish top, thick liquid pyrolysis dish rotates along with the transmission shaft, the inlet pipe is used for the feed of thick liquid pyrolysis dish, scraper and steel brush are used for peeling off of thick liquid pyrolysis dish material, the auto sucking device is used for absorbing the material on the thick liquid pyrolysis dish, transmission device is connected with the transmission shaft, the transmission shaft is the quill shaft, the slurry pyrolysis disc is provided with a heat source inlet and a heat source outlet, wherein the heat source inlet is communicated with heat source interfaces arranged on two sides of the joint of the transmission shaft and the slurry pyrolysis disc through a first heat source pipe, and the heat source outlet is communicated with a second heat source pipe; the second heat source pipe discharges the heat source out of the outer shell along the transmission shaft; the transmission shaft is provided with a transmission wheel which is in meshed transmission with the motor transmission device.
And a transmission shaft in the middle of the outer shell is sleeved with a plurality of layers of slurry pyrolysis disc groups from top to bottom.
And the inner lower part of the outer shell is provided with an inclined plate which is positioned below the slurry pyrolysis disc group.
The slurry pyrolysis disc is a circular ring disc, the axial inner side plate wall is higher than the outer side plate wall and comprises an upper pyrolysis disc and a lower pyrolysis disc, the inner part of the slurry pyrolysis disc is of a hollow structure, the inner cavity is provided with a flow channel type reinforcing rib plate, the outermost end of the bottom of the lower pyrolysis disc is provided with a heat source inlet, and the axial inner side plate of the upper pyrolysis disc is provided with a heat source outlet.
And a blind end is arranged on the transmission shaft above the uppermost layer of the slurry pyrolysis disc in the outer shell.
The upper end of the outer shell is provided with a temperature measuring port.
The shell body is provided with a detachable observation window.
The material suction device is a dust suction type system, and is provided with a gear device for adjusting the gap between the material suction device and the slurry pyrolysis disc up and down.
The lower end of the transmission shaft is provided with a rotary joint, and a heat source enters the transmission shaft through the rotary joint.
The inlet pipe is a straight pipe, and a plurality of discharge holes are axially distributed at the bottom of the pipe wall above the slurry pyrolysis disc.
The invention has the beneficial effects that: compared with the traditional equipment for drying liquid materials, the equipment has a vertical structure, is small in spatial arrangement, increases the contact surface area of the materials, improves the drying and pyrolysis efficiency, and reduces the energy consumption to some extent; secondly, innovation is carried out on the basis of a traditional disc dryer, an outer jacket type and disc hollow inner cavity double-heating system is adopted, the pyrolysis speed of the slurry is increased, meanwhile, the slurry pyrolysis disc can intermittently rotate, other auxiliary components such as a scraper and a steel brush do not rotate, the number of rotating components is small, the operation stability of the equipment is good, and the power consumption is low; moreover, dry materials adopt a dust collection mode, and compared with a scraper chute structure, the material discharging is simple and thorough.
Drawings
FIG. 1 is a schematic view of a housing of the present invention;
FIG. 2 is a top view of the interior of the present invention;
FIG. 3 is a schematic top view of the structure of a slurry pyrolysis tray of the present invention;
FIG. 4 is a cross-sectional view of the present invention;
FIG. 5 is a structural sectional view of a slurry pyrolysis disc of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described in detail with reference to the attached drawings:
as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the drying and pyrolyzing device for acid leaching ore pulp liquid comprises an outer shell 15, an external heating coil 1 is arranged outside the outer shell 15, a detachable observation window 4 is arranged on the outer shell 15, and a feeding pipe 13, a scraper 12, a steel brush 10 and a material sucking device 8 are convenient to observe and detach. The upper end of the outer shell 15 is provided with an exhaust port 3 and a temperature measuring port 2, and the exhaust port 3 of the outer shell is connected with a fan and used for pumping out moisture, nitrogen oxide and other gases evaporated in the drying and pyrolysis process. The lower end of one side of the outer shell 15 is provided with a slag outlet 5, the lower part of the other side of the outer shell 15 is provided with an inclined plate 14, the inclined plate 14 is positioned in the outer shell 15 below the slurry pyrolysis disc group, and the inclined plate 14 is convenient for collecting solid materials scattered from the slurry pyrolysis disc 9 and discharging from the slag outlet 5. A transmission shaft 17 in the middle of the outer shell 15 is sleeved with a plurality of layers of slurry pyrolysis disc groups from top to bottom. A blind end is arranged on the transmission shaft above the slurry pyrolysis disc 9 at the uppermost layer in the outer shell 15, so as to prevent a heat source from passing a shortcut. The transmission shaft 17 has a hollow structure. The slurry pyrolysis disc set comprises a slurry pyrolysis disc 9, a feeding pipe 13, a scraper 12, a steel brush 10, a material sucking device 8 and a transmission device 7, wherein the feeding pipe is matched with the slurry pyrolysis disc 9, and a spring is arranged between the scraper 12, the steel brush 10 and an outer shell 15. Wherein inhale material device 8 and be dust absorption formula system, through outside suction with dry material through inhaling the material pipe and collect outside material storehouse, inhale material device 8 simultaneously and be equipped with the gear device and be used for adjusting from top to bottom and the clearance of thick liquid pyrolysis dish 9. The steel brush 10 is a roller type needle brush, which is convenient for secondary stripping of materials which are not thoroughly scraped. As shown in fig. 4, the slurry pyrolysis disc 9 is a circular disc, and is formed by welding an upper pyrolysis disc and a lower pyrolysis disc, the inner part of the slurry pyrolysis disc is of a hollow structure, and a flow channel type reinforcing rib plate 16 is welded in an inner cavity of the slurry pyrolysis disc, so that a heat source can conveniently flow according to a specified path without short cut. The central part of the slurry pyrolysis disc 9 is of a hollow structure, and the axial inner side plate wall is higher than the axial outer side plate wall, so that dry materials are prevented from extruding out of the slurry pyrolysis disc 9 from the inner side under the action of the scraper 12. The lower pyrolysis disc hollow edge surpasss the upper pyrolysis disc hollow edge, is convenient for carry out bolted connection with 4 channel-section steels that support in lower pyrolysis disc bottom and equipartition and fixes thick liquids pyrolysis disc 9, and the channel-section steel is fixed with bolted connection with transmission shaft 17 respectively again. The second heat source tube 11 is arranged in the channel steel for supporting. The outermost end of the bottom of the lower pyrolysis disc is provided with a heat source inlet, and the axial inner side plate of the upper pyrolysis disc is provided with a heat source outlet. Wherein, the heat source inlet is communicated with heat source interfaces arranged at two sides of the joint of the transmission shaft 17 and the slurry pyrolysis disc 9 through a first heat source pipe 18, and the heat source outlet is communicated with a second heat source pipe 11; the second heat source pipe 11 is connected with the heat source outlet of the slurry pyrolysis disc 9 through threads or welded, and a movable joint is arranged on the second heat source pipe 11, so that the second heat source pipe is convenient to overhaul and disassemble. All the second heat source tubes 11 discharge the heat source out of the outer shell 15 along the channel steel on the transmission shaft 17, and the connection point of all the second heat source tubes 11 and the transmission shaft 17 is higher than the blind end of the middle transmission shaft 17, so that the heat source can return to the heat source system from the end of the transmission shaft 17. The first heat source pipe 18, the second heat source pipe 11 and the slurry pyrolysis disc 9 rotate together with the transmission shaft 17. The transmission shaft 17 is provided with a transmission wheel which is in meshed transmission with the motor transmission device. The lower end of the transmission shaft 17 is provided with a rotary joint 6, and a heat source enters the transmission shaft 17 through the rotary joint 6. The length of a material suction pipe of the material suction device 8 is equal to the radius of the annular disc, the material inlet pipe 13 is a straight pipe, a plurality of material outlet holes are distributed at the bottom of the pipe wall above the slurry pyrolysis disc 9 along the axial direction, and the material inlet pipe 13 has enough distance from the steel brush to keep the material drying time as long as possible.
The specific implementation process of the invention comprises the following steps: acid leaching slurry is uniformly distributed to slurry pyrolysis discs 9 of each layer of slurry pyrolysis disc set through a feeding pipe 13, the liquid distribution thickness is 3-5mm, meanwhile, a part of heat sources enter an external heating coil pipe 1 through a heat source inlet to be heated, a part of heat sources enter the slurry pyrolysis discs 9 layer by layer through a first heat source pipe 18 through a rotary joint 6 at the lower end of a hollow transmission shaft, liquid is filled in the inner cavities of the slurry pyrolysis discs 9 according to a flow channel, and then flows back to a second heat source pipe 11 communicated with a heat source outlet through a branch pipe, and the second heat source pipe 11 returns to a heat source heating system from the rotary joint at the upper end of the hollow transmission shaft. And the temperature of the heat source is adjusted through the temperature feedback of the temperature measuring port 2 in the middle process. The acid leaching ore pulp on the pulp pyrolysis disc 9 is firstly evaporated and then decomposed under the action of a heat source, and the generated water vapor and gas are pumped away by an external fan from the exhaust port 3 at the top. After the materials are pyrolyzed and dried through the observation hole 4 after a certain time, the slurry pyrolysis disc 9 is rotated by starting the motor, and in the rotating process, the materials are contacted with the scraper 12 and the steel brush 10 to be made into powdery materials. In the process, the scraper 12 and the steel brush 10 are provided with springs, so that the gap can be automatically adjusted up and down, and the scraper and the steel brush cannot be clamped with materials. The gear of the material suction device 8 is adjusted again to tightly contact the material suction pipe with the slurry pyrolysis disc 9, and the material suction device 8 is started to intensively recycle the materials to an external material bin. After all the materials in each layer are recovered, the process is repeated. The starting of the motor can be manually operated, and the automatic operation can also be realized by controlling the time.

Claims (5)

1.一种酸浸矿浆液干燥热解装置，包括外壳体，其特征在于：所述外壳体（15）外侧设置外加热盘管（1），所述外壳体（15）上端设置排气口（3），所述外壳体（15）下端设置出渣口（5），所述外壳体（15）中间的传动轴（17）上套装浆液热解盘组，所述浆液热解盘组包括浆液热解盘（9）、与浆液热解盘（9）配套使用的进料管（13）、刮刀（12）、钢刷（10）和吸料装置（8），所述进料管（13）、刮刀（12）、钢刷（10）、吸料装置（8）固定设置在外壳体（15）上，位于浆液热解盘（9）上方，所述浆液热解盘（9）随传动轴（17）转动，所述进料管（13）用于浆液热解盘（9）的给料，所述刮刀（12）和钢刷（10）用于浆液热解盘（9）物料的剥离，所述吸料装置（8）用于吸收浆液热解盘（9）上的物料，所述传动装置（7）与传动轴连接，所述传动轴（17）为中空轴，所述浆液热解盘（9）设有热源进口和热源出口，其中热源进口通过第一热源管（18）与传动轴（17）和浆液热解盘（9）连接处两侧设有的热源接口连通，热源出口与第二热源管（11）连通；所述第二热源管（11）沿着传动轴（17）将热源排出外壳体（15）；所述传动轴（17）上设有传动轮，所述传动轮与电机传动装置啮合传动，所述外壳体（15）中间的传动轴上从上至下套装若干层浆液热解盘组，所述浆液热解盘（9）为圆环形盘，轴向内侧板壁高于外侧板壁，由上下两块热解盘构成，内部为空心结构，内腔设有流道式加强筋板（16），下层热解盘底最外端设有热源进口，上层热解盘的轴向内侧板设有热源出口，所述吸料装置（8）为吸尘式系统，所述吸料装置（8）设有档位装置用于上下调整与浆液热解盘（9）的间隙，所述进料管（13）为一直管，位于浆液热解盘（9）上方的管壁底部沿轴向分布若干个出料孔，所述传动轴（17）下端设置旋转接头（6），热源通过旋转接头（6）进入传动轴（17）。1. An acid leaching ore slurry drying and pyrolysis device, comprising an outer casing, characterized in that: an outer heating coil (1) is arranged on the outer side of the outer casing (15), and an exhaust port is arranged at the upper end of the outer casing (15). (3), a slag outlet (5) is provided at the lower end of the outer casing (15), and a slurry pyrolysis disk group is set on the transmission shaft (17) in the middle of the outer casing (15), and the slurry pyrolysis disk group includes: A slurry pyrolysis plate (9), a feeding pipe (13), a scraper (12), a steel brush (10) and a suction device (8) used in conjunction with the slurry pyrolysis plate (9), the feeding pipe ( 13), the scraper (12), the steel brush (10), and the suction device (8) are fixedly arranged on the outer casing (15), above the slurry pyrolysis disk (9), and the slurry pyrolysis disk (9) is The drive shaft (17) rotates, the feed pipe (13) is used for feeding the slurry pyrolysis disc (9), and the scraper (12) and steel brush (10) are used for the slurry pyrolysis disc (9) material peeling, the suction device (8) is used to absorb the material on the slurry pyrolysis disc (9), the transmission device (7) is connected with the transmission shaft, the transmission shaft (17) is a hollow shaft, the The slurry pyrolysis plate (9) is provided with a heat source inlet and a heat source outlet, wherein the heat source inlet communicates with the heat source interface provided on both sides of the connection between the transmission shaft (17) and the slurry pyrolysis plate (9) through the first heat source pipe (18). , the heat source outlet is communicated with the second heat source pipe (11); the second heat source pipe (11) discharges the heat source from the outer casing (15) along the transmission shaft (17); the transmission shaft (17) is provided with a transmission wheel , the transmission wheel is engaged with the motor transmission device for transmission, and the transmission shaft in the middle of the outer casing (15) is sheathed with several layers of slurry pyrolysis disk groups from top to bottom, and the slurry pyrolysis disk (9) is annular The inner plate wall is higher than the outer plate wall in the axial direction. It is composed of two upper and lower pyrolysis plates. The interior is a hollow structure. The inner cavity is provided with a channel-type reinforcing rib plate (16). The inlet, the axial inner plate of the upper pyrolysis plate is provided with a heat source outlet, the suction device (8) is a dust suction system, and the suction device (8) is provided with a gear device for up and down adjustment and slurry heating The gap between the unraveling disk (9), the feeding pipe (13) is a straight pipe, the bottom of the pipe wall located above the slurry pyrolysis disk (9) is axially distributed with several discharge holes, the transmission shaft (17) A rotary joint (6) is arranged at the lower end, and the heat source enters the transmission shaft (17) through the rotary joint (6). 2.根据权利要求1所述的一种酸浸矿浆液干燥热解装置，其特征在于：所述外壳体（15）内下部设置倾斜板（14），所述倾斜板（14）位于浆液热解盘组下方。2. An acid leaching ore slurry drying and pyrolysis device according to claim 1, characterized in that: an inclined plate (14) is arranged in the lower part of the outer casing (15), and the inclined plate (14) is located at the position of the slurry heat Below the unpacking group. 3.根据权利要求1所述的一种酸浸矿浆液干燥热解装置，其特征在于：所述外壳体（15）内最上层浆液热解盘（9）上方的传动轴上设有盲端。3. An acid leaching ore slurry drying pyrolysis device according to claim 1, characterized in that: a blind end is provided on the drive shaft above the uppermost slurry pyrolysis disk (9) in the outer casing (15). . 4.根据权利要求1所述的一种酸浸矿浆液干燥热解装置，其特征在于：所述外壳体（15）上端设有测温口（2）。4. An acid leaching ore slurry drying and pyrolysis device according to claim 1, characterized in that: a temperature measuring port (2) is provided on the upper end of the outer casing (15). 5.根据权利要求1所述的一种酸浸矿浆液干燥热解装置，其特征在于：所述外壳体（15）上设有可拆卸的观察窗（4）。5 . The acid leaching ore slurry drying and pyrolysis device according to claim 1 , wherein a detachable observation window ( 4 ) is provided on the outer casing ( 15 ). 6 .
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CN205536933U (en) * 2016-03-28 2016-08-31 江苏博莱客冷冻科技发展有限公司 Vacuum freeze drier
CN206531376U (en) * 2016-11-29 2017-09-29 金川集团股份有限公司 A kind of leaching-ore slurries dry thermal cracking device

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