A kind of in zinc electrorefining technique for collecting the device of the cell bottom anode sludge
Technical field
The present invention relates to zinc electrolysis field, relate in particular to a kind of in zinc electrorefining technique for collecting the device of the cell bottom anode sludge.
Background technology
80% zinc adopts hydrometallurgical processes to produce in the world at present, and the final operation of zinc wet extraction process flow process is the zinc electrolytic deposition, and zinc is separated out in negative electrode from solution of zinc sulfate, then casts the zinc ingot metal product.In the zinc electrolyting precipitation process, in order to extend the life-span of alloy lead anode, added a certain amount of mn ion in electrolytic solution, these mn ions are easy to be oxidized to Manganse Dioxide on anode, form the anode sludge.Simultaneously, also have certain foreign ion in electrolytic solution, as calcium, aluminium, magnesium, silicon etc., these ions also can form crystalline deposit with the form of composite salt, thereby are deposited on cell bottom, form the anode sludge.Cleared up not in time if be deposited on the anode sludge of bottom land, will be affected cathode efficiency and quality product, therefore need to be carried out periodic cleaning to electrolyzer inner anode mud.Due in process in zinc electrolyzing, current density is higher simultaneously, and single groove is larger by strength of current, if adopt the short circuit operation, needs to install expensive large short circuit current switch.For reduce cost, zinc electrolyte tank is not generally installed short circuiting switch, causes the cleaning of zinc electrolysis anode sludge all to adopt the method for Hand scarf, and cleaning does not have a power failure.At present, zinc electrolysis enterprise generally adopts at bottom of electrolytic tank and lays anode sludge collection tube A, dig some holes on the tube wall of this pipeline, the anode sludge is deposited in pipeline by pipe tap, pass through again Vacuum suction pump, adopt rubber hose to be inserted in conduit, the anode sludge is extracted out, reach the purpose of the cleaning anode sludge.Its structural representation is shown in Fig. 1.
The advantage of the method is, operation is simple, easy handling, and realized the online suction cleaning of the anode sludge.But, owing in the zinc electrolysis anode sludge, having plate crystal, easily stop up the tube wall collection hole of conduit, cause segment anode mud to be difficult to enter into collection tube, form the bottom land anode sludge and pile up, have a strong impact on zinc electrolysis economic and technical norms and quality product.For the anode sludge that cleaning is piled up in time, manufacturing enterprise all adopts the mode of artificial pumping board to be cleared up at present, namely the part negative plate interval in electrolyzer is extracted out, utilize the space of extracting negative electrode out, vaccum suction tube is inserted into to bottom of electrolytic tank and carries out anode sludge suction.Not only manual work intensity is large for the method, and operating environment is poor, and operating efficiency is low, affects zinc electrolysis production capacity.
Summary of the invention
The objective of the invention is to aspirate online for above-mentioned zinc electrolysis anode sludge the defect of Technology, by the zinc electrolyte tank internal structure is carried out to appropriate design, and provide a kind of in zinc electrorefining technique for collecting the device of the cell bottom anode sludge.
The objective of the invention is to complete by following technical solution, it mainly comprises cell body, vacuum suction apparatus, the bottom of described cell body is trapezoidal shape, be provided with anode sludge capturing device in the bottom of this cell body, the cell body two ends are equipped with transmission rig, and anode sludge capturing device is connected with transmission rig by corrosion-resistant drag rope; Described vacuum suction apparatus is positioned at the both sides of cell body, and the vaccum suction tube in vacuum suction apparatus is inserted in the bottom of cell body, and this vaccum suction tube extracts the anode sludge by vacuum pump.
As preferably, described anode sludge capturing device adopts the insulating material such as Reinforced Polypropylene, chlorinated polyvinyl chloride, Vinylite concrete or glass reinforced plastic to make, its structure designs corresponding shape according to the trapezoidal bottom of cell body, and three of anode sludge capturing device faces can be realized laminating with bottom of electrolytic tank.
As preferably, be provided with pulley in described transmission rig, this pulley is attached to the cell body two ends, is connected with corrosion-resistant drag rope on this pulley.
Beneficial effect of the present invention is: this device is simple to operate, is easy to realize industrial applications, and operational stability is good, has not only realized the online suction of the anode sludge, and has greatly improved the aspiration rates of the anode sludge, has avoided the accumulation of the anode sludge; Realize the process in zinc electrolyzing long-term operation, promote the single groove throughput of zinc electrolysis, simultaneously, reduce labor strength, improve operating environment.
The accompanying drawing explanation
Fig. 1 is existing zinc electrolysis anode sludge trapping-suction unit structural representation.
Fig. 2 is structural representation of the present invention.
Fig. 3 is anode sludge capturing device master TV structure schematic diagram of the present invention.
Fig. 4 is anode sludge capturing device plan structure schematic diagram of the present invention.
Fig. 5 is anode sludge capturing device side-looking structural representation of the present invention.
Fig. 6 is vacuum suction apparatus structural representation of the present invention.
Label in accompanying drawing is respectively: 1, cell body; 2, vacuum suction apparatus; 3, anode sludge capturing device; 4, transmission rig; 5, corrosion-resistant drag rope; 21, vaccum suction tube; 22, vacuum pump; 41, pulley.
Embodiment
Below in conjunction with accompanying drawing, the present invention is done to detailed introduction: as shown in Figure 2, the present invention mainly comprises cell body 1, vacuum suction apparatus 2, the bottom of described cell body 1 is trapezoidal shape, its objective is in order to make the anode sludge can concentrate deposition, so that concentrate suction, reach the purpose that improves aspiration rates.Be provided with anode sludge capturing device 3 in the bottom of this cell body 1, cell body 1 two ends are equipped with transmission rig 4, and anode sludge capturing device 3 is connected with transmission rig 4 by corrosion-resistant drag rope 5; As shown in Figure 6, described vacuum suction apparatus 2 is positioned at the both sides of cell body 1, and the vaccum suction tube 21 in vacuum suction apparatus 2 is inserted in the bottom of cell body 1, and this vaccum suction tube 21 extracts the anode sludge by vacuum pump 22.
As shown in accompanying drawing 3,4,5, described anode sludge capturing device 3 adopts the insulating material such as Reinforced Polypropylene, chlorinated polyvinyl chloride, Vinylite concrete or glass reinforced plastic that the heatproof effect is better, insulating property are good to make, its structure designs corresponding shape according to the trapezoidal bottom of cell body 1, and three of anode sludge capturing device 3 faces can be realized laminating with cell body 1 bottom.Guaranteeing that anode sludge capturing device 3 is when can sliding in cell body 1 bottom, make the anode sludge can push to smoothly the two ends of cell body 1.Because 1 liang of end spaces of cell body is larger, at the bottom of vaccum suction tube 21 is easy to insertion groove, the anode sludge that is collected in the bottom land two ends is easy to by vacuum take-off out, and aspiration rates is higher.In order to realize the parallel sliding of bottom land anode sludge capturing device 3, in the upper design at cell body 1 two ends, manual or electronic transmission rig 4 has been installed respectively, anode sludge capturing device 3 is connected with transmission rig 4 by corrosion-resistant drag rope 5; Be provided with pulley 41 in described transmission rig 4, this pulley 41 is attached to cell body 1 two ends, is connected with corrosion-resistant drag rope 5 on this pulley 41.
In zinc electrorefining technique, for the device operation steps of collecting the cell bottom anode sludge, be: according to the practical situation of process in zinc electrolyzing anode sludge deposition, regular transmission rig 4, the cell bottom anode sludge is pushed to the bottom land two ends, then utilize portable vacuum suction apparatus 2, two ends, bottom by vaccum suction tube 21 from cell body 1, the anode sludge is aspirated out to bottom land, thereby reach the purpose of anode sludge cleaning.This device is simple to operate, is easy to realize industrial applications, and operational stability is good, has not only realized the online suction of the anode sludge, and has greatly improved the aspiration rates of the anode sludge, has avoided the accumulation of the anode sludge.
Be understandable that, for a person skilled in the art, technical scheme of the present invention and inventive concept are equal to replace or change all should belong to the protection domain of the appended claim of the present invention.