CN105127010B - Bauxite forward flotation refuse filter press feeding combines the unit - Google Patents
Bauxite forward flotation refuse filter press feeding combines the unit Download PDFInfo
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- CN105127010B CN105127010B CN201510634914.8A CN201510634914A CN105127010B CN 105127010 B CN105127010 B CN 105127010B CN 201510634914 A CN201510634914 A CN 201510634914A CN 105127010 B CN105127010 B CN 105127010B
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- 238000005188 flotation Methods 0.000 title claims abstract description 14
- 229910001570 bauxite Inorganic materials 0.000 title claims abstract description 12
- 230000002000 scavenging effect Effects 0.000 claims abstract description 15
- 238000004062 sedimentation Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 239000012065 filter cake Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 230000033558 biomineral tissue development Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Treatment Of Sludge (AREA)
- Cyclones (AREA)
Abstract
本发明涉及铝土矿正浮选尾矿压滤机上料组合装置，有效解决尾矿底流进入尾矿压滤机上料时间长、滤饼较薄、尾矿压滤机的进料泵过流件寿命短的问题，扫选尾流的上料泵出料口连通旋流器的进料口，旋流器的溢流出口连通尾矿的沉降槽进口，旋流器的底流出口连通锥形槽的上口部，锥形槽的出口和中间泵相连，中间泵和尾矿的沉降槽底流管连通，尾矿的沉降槽底流管出口接通尾矿压滤机的进料泵进口，尾矿压滤机的进料泵的出口连通尾矿压滤机，本发明结构简单，安装使用方便，效果好，解决了尾矿底流进入尾矿压滤机上料时间长、成饼效果差、尾矿压滤机的进料泵过流件寿命短的问题，提高了工作效率。
The invention relates to a material loading combination device for a bauxite positive flotation tailings filter press, which effectively solves the problem of long loading time for tailings underflow entering the tailings filter press, thin filter cake, and the flow-through parts of the feed pump of the tailings filter press. The problem of short service life is that the outlet of the feeding pump of the scavenging wake is connected to the inlet of the cyclone, the overflow outlet of the cyclone is connected to the inlet of the sedimentation tank of the tailings, and the underflow outlet of the cyclone is connected to the conical tank The outlet of the conical tank is connected to the middle pump, the middle pump is connected to the bottom flow pipe of the tailings settlement tank, the outlet of the tailings settlement tank bottom flow pipe is connected to the inlet of the feed pump of the tailings filter press, and the tailings The outlet of the feeding pump of the filter press is connected to the tailings filter press. The present invention has simple structure, convenient installation and use, and good effect, and solves the problem of long feeding time for tailings underflow entering the tailings filter press, poor cake forming effect, and tailings The short service life of the feed pump of the filter press improves the work efficiency.
Description
技术领域technical field
本发明涉及一种铝土矿正浮选尾矿压滤机上料组合装置。The invention relates to a material loading combination device for a bauxite positive flotation tailings filter press.
背景技术Background technique
当生产铝土矿精矿是以处理低品位铝土矿废渣作为原料时，铝土矿废渣氧化铝含量在52～58%，铝硅比在2.2～2.8，所生产的精矿产品铝硅比在5.0～6.5。尾矿产品铝硅比在1.2～1.5，生产中使用的是高效自循环充气矿化浮选槽，合格的原矿浆经浮选进料泵打入三阶梯布置的高效自循环充气矿化浮选槽中，经过充气搅拌，达到固-液-气三相平衡，进行一次粗选、一次扫选、一次精选的流程作业，实现快速浮选。所得的产品为精矿浆和扫选尾流（意同尾矿浆，以下称扫选尾流），目前扫选尾流后续作业为：扫选尾流经扫选尾流的上料泵输送至尾矿的沉降槽加入絮凝剂进行沉降作业，由于扫选尾流本身存在的特性，粒度较细，经检测扫选尾流粒度：+100目占5%左右，-100目至+200目为15%左右，-200目占80%左右，在絮凝剂絮凝过程中扫选尾流中的+100目由于粒度及比重较大，所需絮凝沉降时间较短，后续的-100目至+200目、-200目物料所需沉降时间相比+100目较长，+100目物料经絮凝剂絮凝沉降后优先沉入尾矿的沉降槽底部，尾矿的沉降槽内形成粒度分层，+100目物料经尾矿压滤机的进料泵输送至尾矿压滤机，上满尾矿压滤机时间较短，后续物料上满尾矿压滤机时间较长，平均单车上满尾矿压滤机时间达到40分钟，由于尾矿压滤机的进料泵长时间运行造成尾矿压滤机的进料泵过流件寿命较短，单套泵过流件使用寿命大约为1200小时，尾矿压滤机运行尤其是成尾矿滤饼效果较差，厚度仅为20mm-25mm 。When the production of bauxite concentrate is to process low-grade bauxite waste residue as raw material, the alumina content of bauxite waste residue is 52-58%, the aluminum-silicon ratio is 2.2-2.8, and the aluminum-silicon ratio of the produced concentrate product is Between 5.0 and 6.5. The aluminum-silicon ratio of the tailings product is 1.2 to 1.5. The high-efficiency self-circulation aerated mineralization flotation tank is used in the production. The qualified raw ore pulp is pumped into the three-step arrangement of the high-efficiency self-circulation aerated mineralization flotation through the flotation feed pump. In the tank, after aeration and stirring, the three-phase balance of solid-liquid-gas is achieved, and a process of roughing, sweeping and fine selection is carried out to realize rapid flotation. The resulting products are concentrate pulp and scavenging tails (meaning tailings pulp, hereinafter referred to as scavenging tails), the current follow-up operation of scavenging tails is: the scavenging tails are transported to the Add flocculants to the settlement tank of the tailings for settling operations. Due to the characteristics of the scavenging wake itself, the particle size is relatively fine. After testing, the particle size of the scavenging tail flow: +100 mesh accounts for about 5%, and -100 mesh to +200 mesh is About 15%, -200 mesh accounts for about 80%. In the process of flocculant flocculation, the +100 mesh in the wake of the scavenger has a relatively large particle size and specific gravity, and the required flocculation and settlement time is relatively short. The subsequent -100 mesh to +200 mesh The settling time required for materials of -200 mesh and +100 mesh is longer than that of +100 mesh, and the +100 mesh material preferentially sinks into the bottom of the tailings settling tank after being flocculated and settled by the flocculant, and particle size stratification is formed in the tailings settling tank, + The 100-mesh material is transported to the tailings filter press through the feed pump of the tailings filter press. The time for filling the tailings filter press is relatively short, and the time for subsequent materials to fill the tailings filter press is longer. On average, a single vehicle is full of tailings The time of the mine filter press reaches 40 minutes. Due to the long-term operation of the feed pump of the tailings filter press, the service life of the feed pump of the tailings filter press is relatively short, and the service life of a single set of pump flow parts is about 1200 Hours, the operation of the tailings filter press is poor, especially the effect of forming a tailings filter cake, with a thickness of only 20mm-25mm.
发明内容Contents of the invention
为克服现有技术缺陷，本发明之目的就是提供一种铝土矿正浮选尾矿压滤机上料组合装置，可有效解决尾矿底流进入尾矿压滤机上料时间长、滤饼较薄、尾矿压滤机的进料泵过流件寿命短的问题。In order to overcome the defects of the existing technology, the purpose of the present invention is to provide a bauxite positive flotation tailings filter press feeding combination device, which can effectively solve the problem of long feeding time and thin filter cake when tailings underflow enters the tailings filter press. 1. The service life of the feed pump of the tailings filter press is short.
本发明解决的技术方案是，包括扫选尾流的上料泵、尾矿的沉降槽、尾矿压滤机的进料泵和尾矿压滤机，扫选尾流的上料泵出料口连通旋流器的进料口，旋流器的溢流出口连通尾矿的沉降槽进口，旋流器的底流出口连通锥形槽的上口部，锥形槽的出口和中间泵相连，中间泵和尾矿的沉降槽底流管连通，尾矿的沉降槽底流管出口接通尾矿压滤机的进料泵进口，尾矿压滤机的进料泵的出口连通尾矿压滤机。The technical scheme solved by the present invention is to include the feeding pump for scavenging the tail flow, the settling tank for the tailings, the feed pump for the tailings filter press and the tailings filter press, and the discharge pump for the scavenging tail flow The outlet of the cyclone is connected to the feed port of the cyclone, the overflow outlet of the cyclone is connected to the tailings sedimentation tank inlet, the underflow outlet of the cyclone is connected to the upper mouth of the conical tank, and the outlet of the conical tank is connected to the intermediate pump. The middle pump is connected with the bottom flow pipe of the settlement tank of the tailings, the outlet of the bottom flow pipe of the settlement tank of the tailings is connected with the inlet of the feed pump of the tailings filter press, and the outlet of the feed pump of the tailings filter press is connected with the tailings filter press .
本发明结构简单，安装使用方便，效果好，有效解决了尾矿底流进入尾矿压滤机上料时间长、成饼效果差、尾矿压滤机的进料泵过流件寿命短的问题，大大提高了尾矿压滤机工作效率。The invention has the advantages of simple structure, convenient installation and use, good effect, and effectively solves the problems of long loading time for tailings underflow entering the tailings filter press, poor cake forming effect, and short service life of the feed pump flow parts of the tailings filter press. The working efficiency of the tailings filter press is greatly improved.
附图说明Description of drawings
图1为改造前的铝土矿正浮选尾矿压滤机上料装置。Figure 1 shows the feeding device of the bauxite positive flotation tailings filter press before transformation.
图2为本发明的结构主视图。Fig. 2 is a structural front view of the present invention.
具体实施方式detailed description
以下结合附图对本发明的具体实施方式作详细说明。The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.
由图1-图2给出，本发明包括扫选尾流的上料泵、尾矿的沉降槽、尾矿压滤机的进料泵和尾矿压滤机，扫选尾流的上料泵1出料口连通旋流器2的进料口，旋流器的溢流出口连通尾矿的沉降槽3进口，旋流器的底流出口连通锥形槽4的上口部，锥形槽的出口和中间泵5相连，中间泵和尾矿的沉降槽3底流管连通，尾矿的沉降槽底流管出口接通尾矿压滤机的进料泵6进口，尾矿压滤机的进料泵的出口连通尾矿压滤机7。Given by Fig. 1-Fig. 2, the present invention comprises the feeding pump of scavenging tail flow, the settling tank of tailings, the feeding pump of tailings filter press and tailings filter press, the feeding pump of scavenging tail flow The discharge port of the pump 1 is connected to the feed port of the cyclone 2, the overflow outlet of the cyclone is connected to the inlet of the tailings settlement tank 3, the underflow outlet of the cyclone is connected to the upper mouth of the conical tank 4, and the conical tank The outlet of the tailings is connected to the middle pump 5, the middle pump is connected to the bottom flow pipe of the tailings settlement tank 3, the outlet of the tailings settlement tank bottom flow pipe is connected to the inlet of the feed pump 6 of the tailings filter press, and the inlet of the tailings filter press The outlet of the feed pump is connected to the tailings filter press 7.
所述的旋流器2装在尾矿的沉降槽的平台上，工作压力为0.06Mpa-0.08Mpa，旋流器溢流口口径为75mm-85mm，底流沉沙嘴口径为35mm-50mm。Said cyclone 2 is installed on the platform of the tailings settlement tank, the working pressure is 0.06Mpa-0.08Mpa, the diameter of the overflow port of the cyclone is 75mm-85mm, and the diameter of the bottom flow sedimentation nozzle is 35mm-50mm.
所述的锥形槽4装在地平面上，长4000mm-5000mm，宽3500m-4500mm，高5000mm-6000mm，锥角为45º-50º。The tapered groove 4 is installed on the ground plane, with a length of 4000mm-5000mm, a width of 3500m-4500mm, a height of 5000mm-6000mm, and a cone angle of 45º-50º.
所述的尾矿压滤机为HZMGF500/2000-U压滤机。The tailings filter press is HZMGF500/2000-U filter press.
所述的中间泵5为ZJ系列渣浆泵，如河北石家庄开发区石泵泵业有限公司生产的型号150ZJ-A57的渣浆泵。The intermediate pump 5 is a ZJ series slurry pump, such as the model 150ZJ-A57 slurry pump produced by Shijiazhuang Development Zone Stone Pump Industry Co., Ltd., Hebei.
所述的锥形槽4为现有技术，为专利号ZL201420368038X，专利名称为一种无搅拌式出料槽组合装置。The tapered tank 4 is a prior art, patent number ZL201420368038X, and the patent name is a non-stirring type discharge tank combination device.
需要指出的是，本发明并不仅限于上述举例，本技术领域的技术人员在本发明的实质范围内所做出的等同或等效的变化、改型、添加、替换，均属于本发明的保护范围。It should be pointed out that the present invention is not limited to the above-mentioned examples, and equivalent or equivalent changes, modifications, additions, and replacements made by those skilled in the art within the essential scope of the present invention all belong to the protection of the present invention. scope.
本发明的使用情况是：在尾矿的沉降槽3上架设旋流器2，开启扫选尾流的上料泵1，经管道输送浮选后的扫选尾流矿浆进入旋流器2，工作压力控制在0.06Mpa-0.08Mpa，经旋流器旋流分级后，旋流器的溢流进入尾矿的沉降槽3加入絮凝剂后进行沉降作业，旋流器的底流进入锥形槽4，锥形槽的底部出料口出来的物料经中间泵5输入至尾矿的沉降槽底流管内与尾矿的沉降槽的底流混合后经尾矿压滤机的进料泵6进入尾矿压滤机7进行压榨作业。The usage of the present invention is as follows: a cyclone 2 is erected on the settling tank 3 of the tailings, the feeding pump 1 of the scavenging tail is turned on, and the scavenging tail slurry after flotation is transported through the pipeline into the cyclone 2, The working pressure is controlled at 0.06Mpa-0.08Mpa. After being graded by the cyclone, the overflow of the cyclone enters the tailings settlement tank 3 and adds flocculant to carry out the settlement operation, and the underflow of the cyclone enters the conical tank 4 The material from the outlet at the bottom of the tapered tank is input into the bottom flow pipe of the tailings settlement tank through the middle pump 5, mixed with the bottom flow of the tailings settlement tank, and then enters the tailings pressure filter through the feed pump 6 of the tailings filter press. Filter machine 7 carries out pressing operation.
本发明将铝土矿正浮选扫选尾流的上料泵出来的物料，用旋流器分为粗粒细粒两部分，细粒经尾矿的沉降槽絮凝沉降分离、粗粒经锥形槽自然重力分离，然后再合并进行压榨作业，和未使用本发明之前相比，使用本发明絮凝剂用量减少8-9%、由于絮凝剂用量的变化，导致物料的性质发生变化，压缩性能发生变化，从而减少上料时间，增加滤饼厚度。In the present invention, the material pumped out of the bauxite forward flotation sweeping tail flow is divided into two parts, coarse and fine, by a cyclone. Shaped grooves are naturally separated by gravity, and then combined for pressing operations. Compared with before using the present invention, the amount of flocculant used in the present invention is reduced by 8-9%. Due to the change in the amount of flocculant, the properties of the material change, and the compression performance changes, thereby reducing the feeding time and increasing the thickness of the filter cake.
本发明与改造前的设备结构相比，具有以下的主要有益效果：在尾矿压滤机运行过程中，单台尾矿压滤机上料时间由原来的40分钟缩短为20分钟、尾矿滤饼厚度由10mm左右提高到28-32mm、尾矿压滤机的进料泵过流件使用寿命由原来的1200小时提升至1800小时，使用寿命提升50%。Compared with the equipment structure before transformation, the present invention has the following main beneficial effects: during the operation of the tailings filter press, the feeding time of a single tailings filter press is shortened from the original 40 minutes to 20 minutes, and the tailings filter The thickness of the cake is increased from about 10mm to 28-32mm, and the service life of the feed pump flow parts of the tailings filter press is increased from the original 1200 hours to 1800 hours, and the service life is increased by 50%.
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