CN-121992193-A - Process and device for replacing sponge lead by anode zinc

CN121992193ACN 121992193 ACN121992193 ACN 121992193ACN-121992193-A

Abstract

The invention relates to the field of zinc smelting, in particular to a process and a device for replacing sponge lead by anode zinc. The device for replacing the sponge lead by the anode zinc comprises a replacement barrel, a zinc supplementing assembly, a liquid collecting ring, a liquid discharging pipe and a cyclone, wherein an upper cover is detachably connected to the replacement barrel, a liquid inlet pipe is connected to the upper cover, a control valve is arranged on the liquid inlet pipe, the zinc supplementing assembly is arranged in the replacement barrel and is connected with the upper cover, the liquid collecting ring is connected with the zinc supplementing assembly and is communicated with the liquid inlet pipe, the liquid discharging pipe is communicated with the replacement barrel, and the liquid discharging pipe is connected with the cyclone. The passivation layer generated on the surface of the zinc ball is continuously removed through rotary friction between the cone cylinder and the friction cylinder, the continuous high activity of anode zinc is maintained, the replacement efficiency is ensured, the poking plate is matched with the receiving net, the surface of the zinc particle is further cleaned, the movement of the zinc particle is promoted, the complete reaction of the zinc particle is ensured, and the generation of lead-containing zinc slag hazardous waste is avoided.

Inventors

LUO MEIYING
YAO JUN
TIAN JINGCHUN
ZHANG XUEGANG
SONG ZHIHONG
YANG AIHONG
PENG CHAO

Assignees

沅陵山能环保科技有限公司

Dates

Publication Date: 20260508
Application Date: 20260225

Claims (10)

1. An apparatus for replacing sponge lead with anode zinc, comprising: the replacement barrel is detachably connected with an upper cover, the upper cover is connected with a liquid inlet pipe, and the liquid inlet pipe is provided with a control valve; The zinc supplementing assembly is arranged in the replacement barrel and is connected with the upper cover; a liquid collecting ring connected with the zinc supplementing assembly and communicated with the liquid inlet pipe, and And the liquid discharge pipe is communicated with the replacement barrel and is connected with a cyclone.
2. The device for replacing sponge lead with anode zinc according to claim 1, further comprising a stirring assembly connected with the upper cover, wherein the stirring assembly comprises a driving motor connected with the upper cover and a stirring rod fixedly connected with an output shaft of the driving motor; Wherein, be provided with the stirring leaf on the puddler.
3. An apparatus for replacing sponge lead with anode zinc as in claim 1 wherein the zinc replenishment assembly comprises a plurality of zinc replenishment units, the zinc replenishment units comprising: the material supplementing mechanism is connected with the upper cover and comprises a zinc supplementing pipe detachably connected with the upper cover, a sealing plug is arranged on the zinc supplementing pipe, a plurality of material discharging inclined openings and two liquid inlet holes are formed in the lower part of the zinc supplementing pipe, and the two liquid inlet holes are communicated with the liquid collecting ring; The conductive mechanism is connected with the replacement barrel and comprises a conductive rod fixedly connected with the replacement barrel, a fixed ring fixedly connected with the conductive rod and a mounting barrel fixedly connected with the fixed ring; the cone cylinder is arranged in the mounting cylinder and fixedly connected with the bottom end of the zinc supplementing pipe, a receiving net fixedly connected with the mounting cylinder is arranged below the cone cylinder, and And the power mechanism is arranged on the upper cover and connected with the zinc supplementing pipe and used for driving the zinc supplementing pipe to rotate.
4. A device for replacing sponge lead with anode zinc according to claim 3, wherein the zinc supplementing unit further comprises a poking plate fixedly connected with the cone through a connecting rod, a space is arranged between the poking plate and the receiving net, and bristles in contact with the receiving net are arranged on the lower side of the poking plate.
5. A device for replacing lead sponge with anode zinc according to claim 3, wherein the zinc supplementing unit further comprises a friction cylinder in damping rotary connection with the mounting cylinder, the friction cylinder is made of conductive material, and the hardness of the friction cylinder is greater than that of zinc.
6. A device for replacing sponge lead with anode zinc according to claim 3, further comprising a filter screen disk fixedly connected with the replacement barrel, a connecting shaft rotatably connected with the filter screen disk and a communicating pipe communicated with the liquid discharge pipe; the bottom of the stirring rod is provided with a hexagonal part which is spliced with the connecting shaft, the filter screen disk is provided with a plurality of butt joint parts which are respectively fixedly connected with the bottom end of the mounting cylinder, and the upper part and the lower part of the connecting shaft are respectively provided with a plurality of cleaning brush plates for cleaning the upper side and the lower side of the filter screen disk.
7. An anode zinc sponge lead replacement device according to claim 1, wherein the replacement barrels are provided with a plurality of replacement barrels which are connected in series to form multi-stage replacement, and the overflow port of the cyclone of the upper replacement barrel is communicated with the liquid inlet pipe of the lower replacement barrel.
8. A device for replacing lead sponge with zinc as claimed in claim 3 wherein each conducting rod is externally connected with an independently programmable micro-current power supply and is provided with a current sensor.
9. An anode zinc lead replacing device according to claim 8, wherein each of said liquid discharge pipes is provided with a lead ion concentration meter and is provided with a central controller.
10. A process for the replacement of lead sponge with zinc as claimed in any one of claims 1 to 9 comprising the steps of: Step one, a plurality of replacement barrels are connected in series to form multi-stage replacement, then zinc balls are supplemented into a zinc supplementing component, and lead-containing leaching liquid is input through a liquid inlet pipe; Stirring by a stirring assembly, and externally connecting a micro-current power supply with a conducting rod to enable zinc balls serving as anodes to perform displacement reaction with the lead-containing leaching liquid to generate sponge lead; and thirdly, discharging the sponge lead and the lead-containing leaching solution after the reaction through a liquid discharge pipe, and separating by a cyclone.

Description

Process and device for replacing sponge lead by anode zinc Technical Field The invention relates to the field of zinc smelting, in particular to a process and a device for replacing sponge lead by anode zinc. Background The zinc substitution method is the most widely used lead recovery process, is widely adopted because of simple operation and relatively low cost, and the traditional process generally adopts zinc powder or a zinc plate as a substitution agent, and the zinc powder is directly added into the leaching solution for substitution reaction. In the prior art, the zinc replacement process has the defects that firstly, zinc powder addition is difficult to control accurately, excessive addition causes zinc resource waste and lead-containing zinc slag dangerous waste, the subsequent treatment cost is increased, and secondly, sponge lead generated by the replacement reaction is easy to wrap the surfaces of zinc particles to form a passivation layer, so that the reaction is attenuated rapidly, and the replacement efficiency and the zinc utilization rate are low. Disclosure of Invention In order to overcome the defects that zinc powder addition is difficult to control accurately, zinc resources are wasted due to excessive addition, lead-containing zinc slag dangerous waste is generated, sponge lead generated by a displacement reaction is easy to wrap the surfaces of zinc particles to form a passivation layer, the reaction is attenuated rapidly, and the displacement efficiency and the zinc utilization rate are low, the invention provides a process and a device for displacing sponge lead by anode zinc. The technical embodiment of the invention relates to a device for replacing sponge lead by anode zinc, which comprises a replacement barrel, wherein an upper cover is detachably connected to the replacement barrel, a liquid inlet pipe is connected to the upper cover, a control valve is arranged on the liquid inlet pipe, a zinc supplementing component is arranged in the replacement barrel and connected with the upper cover, a liquid collecting ring is connected with the zinc supplementing component and communicated with the liquid inlet pipe, and a liquid discharge pipe is communicated with the replacement barrel and connected with a cyclone. More preferably, the stirring device further comprises a stirring assembly connected with the upper cover, wherein the stirring assembly comprises a driving motor connected with the upper cover and a stirring rod fixedly connected with an output shaft of the driving motor, and stirring blades are arranged on the stirring rod. More preferably, the zinc supplementing assembly comprises a plurality of zinc supplementing units, wherein each zinc supplementing unit comprises a material supplementing mechanism, a conical barrel, a power mechanism and a displacement barrel, the material supplementing mechanism is connected with the upper cover, the material supplementing mechanism comprises a zinc supplementing pipe detachably connected with the upper cover, a sealing plug is arranged on the zinc supplementing pipe, a plurality of material discharging inclined openings and two liquid inlet holes are formed in the lower portion of the zinc supplementing pipe, two liquid inlet holes are communicated with the liquid collecting ring, the conductive mechanism is connected with the displacement barrel and comprises a conductive rod fixedly connected with the displacement barrel, a fixed ring fixedly connected with the conductive rod and a mounting barrel fixedly connected with the fixed ring, the conical barrel is arranged in the mounting barrel and fixedly connected with the bottom end of the zinc supplementing pipe, a receiving net fixedly connected with the mounting barrel is arranged below the conical barrel, and the power mechanism is arranged on the upper cover and connected with the zinc supplementing pipe and used for driving the zinc supplementing pipe to rotate. More preferably, the zinc supplementing unit further comprises a poking plate fixedly connected with the cone through a connecting rod, an interval is arranged between the poking plate and the receiving net, and bristles in contact with the receiving net are arranged on the lower side of the poking plate. More preferably, the zinc supplementing unit further comprises a friction cylinder in damping type rotary connection with the mounting cylinder, the friction cylinder is made of conductive materials, and the hardness of the friction cylinder is greater than that of zinc. More preferably, the device further comprises a filter screen disc fixedly connected with the replacement barrel, a connecting shaft rotationally connected with the filter screen disc and a communicating pipe communicated with the liquid discharge pipe, wherein the bottom of the stirring rod is provided with a hexagonal part spliced with the connecting shaft, the filter screen disc is provided with a plurality of butt joint parts fixedly connected w