WO2023115840A1 - 一种硬质合金回收生产线用废水循环系统 - Google Patents

一种硬质合金回收生产线用废水循环系统 Download PDF

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WO2023115840A1
WO2023115840A1 PCT/CN2022/097995 CN2022097995W WO2023115840A1 WO 2023115840 A1 WO2023115840 A1 WO 2023115840A1 CN 2022097995 W CN2022097995 W CN 2022097995W WO 2023115840 A1 WO2023115840 A1 WO 2023115840A1
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water
production line
quadrant
tank
compartment
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PCT/CN2022/097995
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French (fr)
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罗荣华
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湖南金雕能源科技有限公司
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D36/00Filter circuits or combinations of filters with other separating devices
    • B01D36/04Combinations of filters with settling tanks

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  • the invention relates to the technical field of industrial wastewater treatment, in particular to a wastewater circulation system for a cemented carbide recovery production line.
  • Cemented carbide is a kind of micron-sized refractory metal compound powder as the matrix, introducing transition metals (Co, Fe, Ni) as the sintering binder phase, by adjusting the material system formula, pressing and forming, and under a certain protective atmosphere.
  • a metal alloy prepared by powder metallurgy methods such as high-temperature sintering. It can be used to manufacture high-speed cutting tools and cutting tools for hard and tough materials, as well as making cold working molds, measuring tools and high wear-resistant parts. After the products and parts made of cemented carbide materials are discarded, they need to be recycled because they contain precious metals including tungsten carbide and rare metal drills.
  • the recycling methods of cemented carbide include high-temperature treatment, mechanical crushing, chemical treatment, electrolysis, etc., wherein electrolysis is a more commonly used method for recycling cemented carbide.
  • CN102795625A provides a A method for recovering high-purity tungsten carbide from similar waste cemented carbide, including steps such as classification and removal of impurities, crushing, magnetic separation, electrolysis, cleaning, ball milling, screening, precipitation, pickling, cleaning, drying, screening, reduction and batching .
  • CN108910966B A method for extracting tungsten carbide and cobalt from waste cemented carbide, comprising the following steps: S1: breaking the hard waste alloy into particles, and then loading Place the small electrolytic frame in the electrolytic tank for electrolysis; S2: pump the electrolytic solution containing cobalt chloride into the storage pool, soak the alloy particles in clean water, and then dry the alloy particles; S3: perform magnetic separation on the dried alloy particles , Break the cobalt-containing magnetic material into particles with a diameter of 1-6mm with an air weight, and then put it into an electrolytic cell for electrolysis again to separate tungsten carbide and cobalt chloride solutions.
  • the purpose of the present invention is to solve the above problems and provide a waste water circulation system for a cemented carbide recovery production line, which can recycle the water in the cemented carbide recovery process and realize zero discharge of industrial waste water.
  • a waste water circulation system for a cemented carbide recovery production line including a water tank, a waste water collection tank, and a water outlet pipe.
  • the water tank includes a water inlet and a water outlet, and the waste water collection tank is connected to the water tank through the water inlet.
  • the water outlet pipe is connected to the water tank through the water outlet, the waste water collection tank is used to collect the waste water generated in the entire cemented carbide recycling production line, and the water outlet pipe is used to extract the waste water from the water tank and transport it to the cemented carbide recycling production line for use.
  • the inner space of the water tank is divided into a plurality of water storage compartments, and the waste water collection tank and the outlet pipe are respectively connected to different water storage compartments.
  • the water storage compartment connected with the waste water collection tank is the water inlet compartment
  • the water storage compartment connected with the water outlet pipe is the water outlet compartment
  • the other water storage compartments are the middle compartments; the water inlet compartment and the water outlet compartment In the water tank, the waste water in the water inlet compartment finally flows to the water outlet compartment after passing through several intermediate compartments.
  • the water tank is a pothole dug below the ground level, and the depth, length and width of the pothole are determined according to the water consumption of the actual production line.
  • the water tank is a rectangular pothole, and four partitions are installed inside the water tank to form four water storage compartments distributed in the shape of a "field".
  • the water inlet compartment and the water outlet compartment are respectively set in the first quadrant and the fourth quadrant of the "Tian" shape. After the water in the water inlet compartment overflows, it fills up the water in the second quadrant and the third quadrant in turn. Only after the middle compartment can it flow into the outlet compartment.
  • the heights of the partitions are different, among which the height of the partition between the first quadrant and the fourth quadrant of the "Tian" shape is the largest, and the height of the partition between the fourth quadrant and the third quadrant is the second.
  • the height of the partition between the first quadrant and the second quadrant is the third, and the height of the partition between the second quadrant and the third quadrant is the smallest.
  • the waste water collection tank includes a plurality of drains distributed in different workshops of the cemented carbide recycling production line, and these drains gather and transport the waste water and waste liquid in each workshop to the water tank.
  • the workshops of the cemented carbide recycling production line include crushing workshops, cleaning workshops, drying workshops and electrolysis workshops.
  • the upper end of the partition is provided with a filter device, and when the waste water in the water storage compartment flows to other water storage compartments, the filter device filters the water flow.
  • the filter device is a metal plate with filter holes.
  • the water storage compartment of the water tank is provided with an impurity collection device, and the impurity collection device is laid on the bottom of the water tank. After a period of use, the impurity collection device can be taken out to remove the waste residue deposited at the bottom of the water tank.
  • the impurity collecting device is a steel wire screen.
  • the partition is a telescopic plate structure, and the height of the partition can be adjusted according to needs.
  • the waste water collection tank guides the waste water into the water tank through the collection pipe, and the collection pipe and the outlet pipe can be placed in different In the water storage compartment, the water storage compartment in the water tank can be used as the water inlet compartment or the water outlet compartment in turn, so as to clean the water storage compartments of the water tank.
  • the "Tian" shape The first quadrant is the water inlet compartment.
  • put the collection pipe into the water storage compartment in the second quadrant so that the water storage compartment in the second quadrant serves as a new water intake compartment, and adjust the corresponding compartment at the same time.
  • the height of the plate is used to control the flow direction of the waste water, so that the waste water flows from the new water inlet compartment to the water storage compartment of the first quadrant through the third and fourth quadrant water storage compartments, and its overall effect is corresponding to that of the water tank. 90 degree counterclockwise rotation.
  • the waste water circulation system among the present invention comprises the waste water collecting tank, and the waste water collecting tank comprises the drainage ditches in all workshops on the cemented carbide recycling production line, makes the waste liquid in all workshops,
  • the waste water is collected into the water tank, which includes the waste water in the production process, as well as the waste water generated when cleaning the workshop floor or production tools, and the waste water can be used in the production line after sedimentation and filtration in multiple water storage compartments in the water tank Reuse in the cemented carbide recycling production line to achieve zero discharge of waste water.
  • Embodiment 1 is a schematic diagram of the overall structure of the wastewater circulation system in Embodiment 1 of the present invention.
  • Fig. 2 is the structural representation of water tank in the embodiment 1 of the present invention.
  • this embodiment is a waste water circulation system for a cemented carbide recycling production line, including a water tank, a waste water collection tank, and an outlet pipe.
  • the water tank includes a water inlet 1 and a water outlet 3, and the waste water collection tank passes through the water inlet 1 and The water tank is connected, and the outlet pipe is connected to the water tank through the water outlet 3.
  • the waste water collection tank is used to collect the waste water generated in the entire cemented carbide recycling production line, and the water outlet pipe is used to extract the water from the water tank and transport it to the cemented carbide recycling production line.
  • the inner space of the water tank is divided into a plurality of water storage compartments, and the waste water collection tank and the outlet pipe are respectively connected to different water storage compartments.
  • the water storage compartment connected with the wastewater collection tank is the water inlet compartment 4
  • the water storage compartment connected with the water outlet pipeline is the water outlet compartment 5, and the other water storage compartments are the middle compartments;
  • the room 4 is adjacent to the water outlet compartment 5, and in the water tank, the waste water in the water inlet compartment 4 flows through several intermediate compartments in sequence and finally flows to the water outlet compartment 5.
  • a water pump is arranged in the water outlet compartment 5, which can be used to extract the waste water in the water outlet compartment from the water tank and reuse it in the production line. Rapid cooling to make the cemented carbide easier to be broken.
  • the water tank is a rectangular pit dug below the ground level.
  • the depth of the pit is 3 meters, and the length and width are determined according to the water demand of the actual production line.
  • four partitions are installed inside the water tank to form four water storage compartments distributed in the shape of a "field".
  • the water in the water inlet compartment 4 flows into the water outlet compartment 5 after passing through the middle compartment located in the second quadrant and the third quadrant in sequence.
  • the heights of the partitions are different, wherein the height of the partition 24 between the first quadrant and the fourth quadrant of the "Tian" shape is 3m, and the partition 23 between the fourth quadrant and the third quadrant
  • the height is 2.2m, and the height of the dividing plate 21 between the first quadrant and the second quadrant is 2m, and the height of the dividing plate 22 between the second quadrant and the third quadrant is 1.5m, so that the waste water will flow from the first quadrant to the second quadrant.
  • the water storage compartment in the three quadrants is fully filled before entering the water outlet compartment in the fourth quadrant.
  • the waste water collection tank includes a plurality of drainage ditches distributed in different workshops of the cemented carbide recycling production line, and these drainage ditches collect and transport the waste water and waste liquid in each workshop to the water tank.
  • These workshops include crushing workshop, cleaning workshop, drying workshop and electrolysis workshop.
  • the upper end of the partition is provided with a filtering device.
  • the filtering device filters some impurities in the water flow.
  • the filtering device is Stainless steel fence.
  • the water storage compartment of the water tank is provided with an impurity collection device, the impurity collection device is a steel wire screen, and the impurity collection device is laid on the bottom of the water tank. Take out the waste residue at the bottom.
  • the principle of this embodiment is: through the drainage ditch of each production workshop, the waste water in the production process of cemented carbide recycling is collected into the water tank uniformly, and the waste water first enters the water inlet compartment, and the first precipitation is carried out in the water inlet compartment , when the water in the water inlet compartment exceeds the dividing plate 21 between the first quadrant and the second quadrant, the waste water enters the middle compartment of the second quadrant for the second sedimentation, when the waste water exceeds the second quadrant and the third quadrant
  • the partition 22 between the waste water enters the middle compartment in the third quadrant
  • the waste water exceeds the partition 22 between the third quadrant and the fourth quadrant
  • the waste water enters the water inlet compartment, and the waste water has been precipitated many times It can be used again in the recycling process, and the water in the whole process can be continuously circulated, so as to realize zero discharge of waste water, as long as the waste residue and sediment in the water tank are cleaned regularly.
  • the partition in this embodiment is a telescopic plate structure, and the height of the partition can be adjusted according to needs to adjust the capacity of each water storage compartment.
  • the waste water is diverted into the water tank, and the collection pipe and outlet pipe can be put into different water storage compartments as required.
  • the water storage compartments in the water tank can be used as the water inlet compartment or the water outlet compartment in turn, so as to clean each water storage compartment of the water tank.
  • Water compartment at this time, put the collection pipe into the water storage compartment in the second quadrant, so that the water storage compartment in the second quadrant serves as a new water intake compartment, and at the same time adjust the height of the corresponding partition to control
  • the flow direction of the waste water realizes that the waste water flows from the new water inlet compartment to the water storage compartment of the first quadrant through the water storage compartments of the third and fourth quadrants, and the overall effect corresponds to a 90-degree counterclockwise rotation of the water tank .
  • the water storage compartment in the first quadrant (the original water intake compartment, and the most waste residue deposited in the water storage compartment) can be cleaned, the waste water in it is pumped out and the waste residue in it is removed, and the cleaning is done in this way.
  • the water storage compartment in the first quadrant after cleaning can be used as a new water delivery compartment. After using for a period of time, the above-mentioned process can be repeated again, so that the water storage compartment in the next quadrant is used as a new water intake compartment to clean up the waste water and waste residue in the water intake compartment before adjustment, and so on;
  • the advantage is that when cleaning the water tank, by adjusting the height of the partition, the water tank can be used normally, and the continuous collection and sedimentation treatment of waste water can be realized.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

一种硬质合金回收生产线用废水循环系统,包括水箱、废水收集槽、出水管道,水箱包括进水口和出水口,废水收集槽通过进水口与水箱相连,出水管道通过出水口与水箱相连,废水收集槽用于收集整个硬质合金回收生产线中产生的废水,出水管道用于将水箱中的抽出,并输送到硬质合金回收生产线中使用,所述水箱的内部空间划分为多个储水隔间,废水收集槽与出水管道分别连接不同的储水隔间。本发明中的废水循环系统,包括废水收集槽用于使所有车间中的废液、废水均被收集到水箱中,且废水经过水箱中多个储水隔间的沉淀和过滤后又可以在生产线中重复利用,实现了硬质合金回收生产线中废水的零排放。

Description

一种硬质合金回收生产线用废水循环系统 技术领域
本发明涉及工业废水处理技术领域,具体涉及一种硬质合金回收生产线用废水循环系统。
背景技术
硬质合金是一种以微米级难熔金属化合物粉末为基体,引入过渡族金属(Co,Fe,Ni)为烧结粘结相,通过调整材料体系配方、压制成型,并在一定保护气氛下经高温烧结等粉末冶金方法制备的一种金属合金。可以用于制造高速切削刃具和硬、韧材料切削刃具,以及制作冷作模具、量具和高耐磨零件。硬质合金材料制成的产品及零件废弃后,由于其含有包括碳化钨和稀有金属钻等贵重金属,因此需要对其进行回收利用。
目前,硬质合金的回收利用方法有高温处理法、机械破碎法、化学处理法、电解法等,其中电解法是较常用的一种硬质合金回收方法,比如CN102795625A提供了一种从钨钴类废硬质合金中回收高纯度碳化钨的方法,包括分类除杂、破碎、磁选、电解、清洗、球磨、筛分、沉淀、酸洗、清洗、干燥、筛分、还原和合批等步骤。CN108910966B一种从废旧硬质合金中提取碳化钨和钴的方法一种从废旧硬质合金中提取碳化钨和钴的方法,包括以下步骤:S1:将硬质废旧合金破碎成颗粒,再装入电解小框中置于电解槽内电解;S2:将含氯化钴的电解溶液抽入储存池中,合金颗粒清水浸泡,再将合金颗粒烘干;S3:将烘干的合金颗粒进行磁选,将含钴吸磁物用空气重锤打碎成直径为1-6mm的颗粒,再装入电解槽进行再次电解,分离出碳化钨和氯化钴溶液。由上述的现有技术文件可知,在硬质合金的电解回收方法中,不可避免的需要使用大量的水或溶液。而使用过的废水中含有较多的危险有毒有害物质,不能够直接排放,以免 污染环境,因此,企业还需要对产生的废水进行处理,这样大大增加了企业的生产成本。
发明内容
本发明的目的是解决上述问题提供一种硬质合金回收生产线用废水循环系统,对硬质合金回收工艺中的用水进行循环使用,实现工业废水的零排放。
本发明实现其目的采用的技术方案是:一种硬质合金回收生产线用废水循环系统,包括水箱、废水收集槽、出水管道,水箱包括进水口和出水口,废水收集槽通过进水口与水箱相连,出水管道通过出水口与水箱相连,废水收集槽用于收集整个硬质合金回收生产线中产生的废水,出水管道用于将水箱中的抽出,并输送到硬质合金回收生产线中使用,所述水箱的内部空间划分为多个储水隔间,废水收集槽与出水管道分别连接不同的储水隔间。
进一步的,与废水收集槽连接的储水隔间为进水隔间,与出水管道连接的储水隔间为出水隔间,其它储水隔间为中间隔间;进水隔间与出水隔间相邻,在水箱中,进水隔间中的废水经过若干个中间隔间后最终流向出水隔间。
进一步的,水箱为向地平面以下挖出的坑洞,坑洞的深度、长度及宽度根据实际生产线的用水量确定,。
进一步的,水箱为矩形坑洞,在水箱内部安装四块隔板,并形成“田”字状分布的四个储水隔间。
进一步的,进水隔间与出水隔间分别设在“田”字形的第一象限和第四象限,进水隔间中的水溢出后,依次填充满位于第二象限和第三象限中的中间隔间后才能流到出水隔间中。
进一步的,隔板的高度各不相同,其中位于“田”字形的第一象限与第四象限间的隔板的高度最大,位于第四象限与第三象限间的隔板高度第二,位于第一象限与第二象限间的隔板高度第三,位于第二象限和第三象限间的隔板的高度最小。这样使得污水不能直接从进水隔间流到出水隔间,而是要等进水隔间中的废水的液面超过第一象限与第二象限间的隔板后,才能流到位于第二象限 的中间隔间,当位于第二象限的中间隔间中废水的液面超过第二象限与第三象限间的隔板后,才能流向第三象限中的中间隔间。以此类推,废水最终流到出水隔间中。
进一步的,废水收集槽包括多条分布于硬质合金回收生产线的不同车间中的排水沟,这些排水沟将各车间中的废水及废液汇聚并输送到水箱中去。
进一步的,硬质合金回收生产线的车间包括破碎车间、清洗车间、烘干车间和电解车间。
进一步的,隔板的上端设置有过滤装置,当储水隔间中的废水向其它储水隔间流动时,过滤装置对水流进行过滤。过滤装置为带有滤孔的金属板。
进一步的,水箱的储水隔间中设置有杂质收集装置,杂质收集装置铺设于水箱底部,使用一段时间后,将杂质收集装置取出即可将沉淀在水箱底部的废渣取出。
进一步的,杂质收集装置为钢丝筛网。
在一些实施例中,隔板为伸缩板结构,可以根据需要来调节隔板的高度,废水收集槽通过收集管道将废水导流到水箱中,且收集管道和出水管道可以根据需要放入不同的储水隔间中,这样可以将水箱中的储水隔间轮流作为进水隔间或出水隔间使用,以便于对水箱的各储水隔间进行清理,例如,初始状态时,“田”字形的第一象限为进水隔间,这时将收集管道放入第二象限中的储水隔间,使第二象限中的储水隔间作为新的进水隔间,同时调节相应的隔板的高度,以控制废水的流动方向,实现废水从新的进水隔间经过第三象限和第四象限的储水隔间流向第一象限的储水隔间,其总体效果相应于水箱进行了90度的逆时针旋转。
与现有技术相比本发明的有益效果:本发明中的废水循环系统,包括废水收集槽,废水收集槽包括硬质合金回收生产线上所有车间中的排水沟,使得所有车间中的废液、废水均被收集到水箱中,这些废水包括生产工艺中的废水,也包括清洗车间地板或生产工具时产生的废水,并且废水经过水箱中多个储水隔间的沉淀和过滤后又可以在生产线中重复利用,实现了硬质合金回收生产线中 废水的零排放。
附图说明
图1为本发明实施例1中废水循环系统的整体结构示意图;
图2为本发明实施例1中水箱的结构示意图;
图中:1-进水口,21,22,23,24-隔板,3-出水口,4-进水隔间,5-出水隔间。
具体实施方式
以下将结合具体实施例对本发明做进一步详细说明,本实施例中未具体说明的方法或工艺,均为现有技术。
实施例1
如图1所示,本实施例是一种硬质合金回收生产线用废水循环系统,包括水箱、废水收集槽、出水管道,水箱包括进水口1和出水口3,废水收集槽通过进水口1与水箱相连,出水管道通过出水口3与水箱相连,废水收集槽用于收集整个硬质合金回收生产线中产生的废水,出水管道用于将水箱中的抽出,并输送到硬质合金回收生产线中使用,所述水箱的内部空间划分为多个储水隔间,废水收集槽与出水管道分别连接不同的储水隔间。
本实施例中,与废水收集槽连接的储水隔间为进水隔间4,与出水管道连接的储水隔间为出水隔间5,其它储水隔间为中间隔间;进水隔间4与出水隔间5相邻,在水箱中,进水隔间4中的废水依次经过若干个中间隔间后最终流向出水隔间5。出水隔间5中设置有水泵,可用于将出水隔间中的废水从水箱中抽出并在生产线中重复利用,比如在破碎车间中,就可以使用水箱中的水为高温煅烧后的硬质合金急速降温,以使硬质合金更容易被破碎。
本实施例中,水箱为向地平面以下挖出的矩形坑洞,坑洞的深度为3米,长度及宽度根据实际生产线的需水量确定。
本实施例中,在水箱内部安装四块隔板,并形成“田”字状分布的四个储水 隔间,进水隔间4与出水隔间5分别设在“田”字形的第一象限和第四象限,进水隔间4中的水依次经过位于第二象限和第三象限中的中间隔间后流到出水隔间5中。
本实施例中,隔板的高度各不相同,其中位于“田”字形的第一象限与第四象限间的隔板24的高度为3m,位于第四象限与第三象限间的隔板23高度为2.2m,位于第一象限与第二象限间的隔板21高度为2m,位于第二象限和第三象限间的隔板22的高度为1.5m,这样使得废水将第一象限到第三象限中的储水隔间全部填满后才会进入第四象限中的出水隔间。
本实施例中,废水收集槽包括多条分布于硬质合金回收生产线的不同车间中的排水沟,这些排水沟将各车间中的废水及废液汇聚并输送到水箱中去。这些车间包括破碎车间、清洗车间、烘干车间及电解车间。
本实施例中,隔板的上端设置有过滤装置,当储水隔间中的废水从隔板的上端向其它储水隔间流动时,过滤装置对水流中的一些杂质进行过滤,过滤装置为不锈钢栅栏。
本实施例中,水箱的储水隔间中设置有杂质收集装置,杂质收集装置为钢丝筛网,杂质收集装置铺设于水箱底部,使用一段时间后,将杂质收集装置取出即可将沉淀在水箱底部的废渣取出。
本实施例的原理是:通过各个生产车间的排水沟将硬质合金回收生产过程中的废水统一收集到水箱中,废水首先进入进水隔间中,在进水隔间中进行第一次沉淀,当进水隔间中的水超过第一象限与第二象限间的隔板21时,废水进入第二象限的中间隔间,进行第二次沉淀,当废水超第二象限与第三象限间的隔板22时,废水进入第三象限中的中间隔间,当废水超第三象限与第四象限间的隔板22时,废水进入进水隔间,这时废水己经过多次沉淀可以再次用于回收工艺中,整个过程中的水可以不断循环,从而实现废水的零排放,只要定时清理水箱中的废渣和沉淀即可。
实施例2
本实施例与实施例1的区别在于,本实施例中的隔板为伸缩板结构,可以根 据需要来调节隔板的高度,以调节各储水隔间的容量,废水收集槽通过收集管道将废水导流到水箱中,且收集管道和出水管道可以根据需要放入不同的储水隔间中。这样可以将水箱中的储水隔间轮流作为进水隔间或出水隔间使用,以便于对水箱的各储水隔间进行清理,例如,初始状态时,“田”字形的第一象限为进水隔间,这时将收集管道放入第二象限中的储水隔间,使第二象限中的储水隔间作为新的进水隔间,同时调节相应的隔板的高度,以控制废水的流动方向,实现废水从新的进水隔间经过第三象限和第四象限的储水隔间流向第一象限的储水隔间,其总体效果相应于水箱进行了90度的逆时针旋转。调整完成后,可以对第一象限中的储水隔间(原进水隔间,且该储水隔间中沉淀的废渣最多)进行清理,抽出其中的废水并将其中的废渣清除,这样清理干净后的第一象限中的储水隔间就可以作为新的出水隔间使用。使用一段时间后,又可以重复上述的过程,使下一个象限中的储水隔间作为新的进水隔间,以清理调整前的进水隔间中的废水与废渣,以此类推;其优势是在进行水箱清理时,通过调节隔板的高度,使水箱可以正常使用,实现对废水的连续收集与沉淀处理。
以上仅为本发明的部分实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有前述各种技术特征的组合和变型,本领域的技术人员在不脱离本发明的精神和范围的前提下,对本发明的改进、变型、等同替换,或者将本发明的结构或方法用于其它领域以取得同样的效果,都属于本发明包括的保护范围。

Claims (10)

  1. 一种硬质合金回收生产线用废水循环系统,包括水箱、废水收集槽、出水管道,水箱包括进水口和出水口,废水收集槽通过进水口与水箱相连,出水管道通过出水口与水箱相连,其特征在于:所述废水收集槽用于收集整个硬质合金回收生产线中产生的废水,所述出水管道用于将水箱中的抽出,并输送到硬质合金回收生产线中使用,所述水箱的内部空间划分为多个储水隔间,废水收集槽与出水管道分别连接不同的储水隔间。
  2. 根据权利要求1所述的一种硬质合金回收生产线用废水循环系统,其特征在于:与废水收集槽连接的储水隔间为进水隔间,与出水管道连接的储水隔间为出水隔间,其它储水隔间为中间隔间;进水隔间与出水隔间相邻,在水箱中,进水隔间中的废水经过若干个中间隔间后最终才流向出水隔间。
  3. 根据权利要求2所述的一种硬质合金回收生产线用废水循环系统,其特征在于:所述水箱为向地平面以下挖出的坑洞,坑洞的深度、长度及宽度根据实际生产线的用水量确定。
  4. 根据权利要求3所述的一种硬质合金回收生产线用废水循环系统,其特征在于:所述水箱为矩形坑洞,在水箱内部安装四块隔板,并形成“田”字状分布的四个储水隔间。
  5. 根据权利要求4所述的一种硬质合金回收生产线用废水循环系统,其特征在于:所述进水隔间与出水隔间分别设在“田”字形的第一象限和第四象限,进水隔间中的水依次经过位于第二象限和第三象限中的中间隔间后流到出水隔间中。
  6. 根据权利要求5所述的一种硬质合金回收生产线用废水循环系统,其特征在于:所述隔板的高度各不相同,其中位于“田”字形的第一象限与第四象限间的隔板的高度最大,位于第四象限与第三象限间的隔板高度第二, 位于第一象限与第二象限间的隔板高度第三,位于第二象限和第三象限间的隔板的高度最小。
  7. 根据权利要求1所述的一种硬质合金回收生产线用废水循环系统,其特征在于:所述废水收集槽包括多条分布于硬质合金回收生产线的不同车间中的排水沟,这些排水沟将各车间中的废水及废液汇聚并输送到水箱中去。
  8. 根据权利要求7所述的一种硬质合金回收生产线用废水循环系统,其特征在于:所述硬质合金回收生产线的车间包括破碎车间、清洗车间、烘干车间、电解车间。
  9. 根据权利要求4所述的一种硬质合金回收生产线用废水循环系统,其特征在于:所述隔板的上端设置有过滤装置,当储水隔间中的废水向其它储水隔间流动时,过滤装置对水流进行过滤。
  10. 根据权利要求1所述的一种硬质合金回收生产线用废水循环系统,其特征在于:所述水箱的储水隔间中设置有杂质收集装置,杂质收集装置铺设于水箱底部,使用一段时间后,将杂质收集装置取出即可将沉淀在水箱底部的废渣取出。
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