CN205741226U

CN205741226U - The preliminary clearning system of copper electrolyte

Info

Publication number: CN205741226U
Application number: CN201620226497.3U
Authority: CN
Inventors: 谢钿生; 邹贤; 徐武; 何夏雨
Original assignee: Jinguan Copper Industry Branch of Tongling Nonferrous Metals Group Holding Co Ltd
Current assignee: Jinguan Copper Industry Branch of Tongling Nonferrous Metals Group Holding Co Ltd
Priority date: 2016-03-21
Filing date: 2016-03-21
Publication date: 2016-11-30
Anticipated expiration: 2026-03-21

Abstract

The utility model discloses the preliminary clearning system of a kind of copper electrolyte, it includes electrolysis bath, melt pit, concentrator, one-level pressure filter and the circulating slot being sequentially arranged, the earth of positive pole outlet of electrolysis bath leads to the mud inlet of concentrator through melt pit, the mud discharging mouth of the charging aperture connection concentrator of one-level pressure filter, the supernatant outlet of the one-level filtrate (liquid of one-level pressure filter, the purified liquor outlet of concentrator and electrolysis bath each leads to the inlet of circulating slot, and the liquid outlet of circulating slot leads to the circulating purification system of copper electrolyte.This utility model uses concentrator and one-level pressure filter successively the earth of positive pole of the bottom aggradation of electrolysis bath to be carried out settlement separate and filter pressing, the processing cost the most not only making the earth of positive pole is low, and the classified suspension content SS processing the copper electrolyte obtained after the filtrate produced is passed through the circulating purification system of prior art controls below 15.

Description

The preliminary clearning system of copper electrolyte

Technical field

This utility model relates to metallurgical technology field, is specifically related to the preliminary clearning system of a kind of copper electrolyte.

Background technology

In prior art, copper mine enterprise is usually and the blister copper prepared is used electro deposition fine copper, but actual In production, the impurity such as arsenic in blister copper, antimony, bismuth can synchronize to occur electrolytically generated arsenic ion, antimony ion and bismuth ion with copper, this A little ionic impurities can form the least cotton-shaped float of dissolubility in copper electrolyte and adhere to negative electrode and cathode copper Surface, thus greatly reduce the quality of the cathode copper of generation.As can be seen here, the clarity of copper electrolyte, in other words copper electricity The suspension content solved in liquid is one of key factor affecting tough cathode product quality, and too high suspension content can cause the moon The contaminant overstandard of pole copper, or the outward appearance of tough cathode is defective, makes tough cathode demote.

In order to solve the problems referred to above, current domestic copper mine enterprise cupric electrolysis in actual production process, in copper electrolysis cells During liquid is all in circulating, i.e. during electrolysis blister copper, the copper electrolyte of electrolysis bath is to overflow with certain flow velocity Flowing and enter in circulating slot, the circulating purification system then passing to copper electrolyte carries out recycling after purified treatment.Mesh Before, the circulating purification system of copper electrolyte mainly includes two the electrodeposition clean units being sequentially arranged, specifically, in circulating slot Copper electrolyte first pass through circulating purification system and carry out secondary electrodeposition purified treatment, then second time electrodeposition purified treatment is produced Decopper(ing) liquid be heated and refluxed for i.e. can be recycled to electrolysis bath.In actual purification process, purify for first time electrodeposition and produce It is for sale to collect thick copper sulfate that raw decopper(ing) liquid needs to first pass through evaporation and concentration and filtration treatment, the filtrate after filtering the most again Carry out second time electrodeposition.

It addition, after the blister copper electrolysis in electrolysis bath, positive plate therein and minus plate can be transported by crane To specifying position, meanwhile, need by the supernatant in electrolysis bath and be deposited on the earth of positive pole of bottom land all discharge into Row thoroughly cleaning, concrete, prior art is that the bottom land earth of positive pole in electrolysis bath is drained into melt pit, then uses pressure filter to carry out Filter pressing processes, and the filtrate that filter pressing obtains together enters in circulating slot with the supernatant in electrolysis bath to treat described circularly purifying system Unite and carry out recycling after secondary electrodeposition process, and the mud cake direct marketing that filter pressing produces.

But use above-mentioned technical finesse copper electrolyte to there is also certain technological deficiency: in order to ensure existing purification The filtrate that filter pressing can reliably be obtained by system carries out purified treatment, needs to use pressure filter (model special on market XAY100/1000-U, purchased from Shandong Jingjin Environmental Protection Equipment Co., Ltd.) earth of positive pole in melt pit is carried out filter pressing process, this The cost of Special filter press is 100-100 ten thousand/platform, and filter cloth cost therein is the most expensive, substantially at ten thousand yuan/block of 1-1.5, This equipment manufacturing cost cost and maintenance cost are the highest, therefore, it is difficult to promote the use of widely in copper mine enterprise.It addition, after testing Show, use the circular treatment technology of above-mentioned copper electrolyte to make the ss suspended solid of the copper electrolyte in electrolysis bath still be up to 22 Above, some medium-sized and small enterprises even as high as more than 50 are still being continuing with.Therefore, the purified treatment how reducing copper electrolyte becomes This, it is ensured that the clean-up effect of copper electrolyte, this be need copper mine enterprise solve technical bottleneck.

Summary of the invention

The purpose of this utility model is to provide a kind of simple in construction, use cost is low and can be effectively improved copper electrolyte The preliminary clearning system of copper electrolyte of clean-up effect.

For achieving the above object, the technical solution adopted in the utility model is: the preliminary clearning system of a kind of copper electrolyte, its It is characterised by: include electrolysis bath, melt pit, concentrator, one-level pressure filter and the circulating slot being sequentially arranged, the earth of positive pole row of electrolysis bath The mud inlet of concentrator is led in outlet through melt pit, the mud discharging mouth of the charging aperture connection concentrator of one-level pressure filter, one-level pressure filter The supernatant outlet of one-level filtrate (liquid, the purified liquor outlet of concentrator and electrolysis bath each lead to the inlet of circulating slot, follow The liquid outlet of annular groove leads to the circulating purification system of copper electrolyte.

Use having the beneficial effects that of technique scheme generation: this utility model uses concentrator and one-level pressure filter to depend on The earth of positive pole of the secondary bottom aggradation to electrolysis bath carries out settlement separate and filter pressing, the most not only makes the processing cost of the earth of positive pole Low, and the classified copper electrolyte obtained after the filtrate produced is passed through the circulating purification system of prior art that processes disclosure satisfy that Use requirement.

Accompanying drawing explanation

Fig. 1 is system construction drawing of the present utility model.

Detailed description of the invention

A kind of preliminary clearning system of copper electrolyte, as it is shown in figure 1, it electrolysis bath 10 including being sequentially arranged, melt pit 20, dense Close machine 30, one-level pressure filter 40 and circulating slot 50, the earth of positive pole outlet 11 of electrolysis bath 10 leads to concentrator 30 through melt pit 10 Mud inlet 31, the charging aperture 41 of one-level pressure filter 40 connects the mud discharging mouth 32 of concentrator 30, the one-level filtrate of one-level pressure filter 40 The supernatant outlet 12 of outlet 42, the purified liquor outlet 33 of concentrator 30 and electrolysis bath 10 each leads to the inlet of circulating slot 50 51, the liquid outlet 52 of circulating slot 50 leads to the circulating purification system of copper electrolyte.This utility model uses concentrator 30 and one-level Pressure filter 40 earth of positive pole to the bottom aggradation of electrolysis bath 10 successively carries out settlement separate and filter pressing, and such staged care makes to produce The copper electrolyte that raw filtrate obtains after being passed through the circulating purification system of prior art disclosure satisfy that use requirement.With prior art Comparing, this utility model uses concentrator 30 and the Special filter press of the direct substitution costliness of one-level pressure filter 40, thus significantly drops The low processing cost of copper electrolyte, concrete, described concentrator 30 and one-level pressure filter 40 use model conventional on market , these equipment prices are significantly lower than the Special filter press of copper electrolyte.

As further preferred version: as it is shown in figure 1, described preliminary clearning system also includes filtrate storage tank 60 and two grades of pressures Filter 70, the import of filtrate storage tank 60 simultaneously with one-level filtrate (liquid 42 and the purified liquor outlet of concentrator 30 of one-level pressure filter 40 33 are connected, and the feed end 71 of two grades of pressure filter 70 is led in the outlet of filtrate storage tank 60, and two grades of filtrates of two grades of pressure filter 70 go out Mouth 72 connects the inlet 51 of circulating slots 50.It is to say, through the clear liquid of concentrator 30 sedimentation generation and through one-level pressure filter The filtrate that 40 filter pressings produce first passed through two grades of pressure filter 70 before entering circulating slot 50 and carries out filter pressing process, so can enter one Step filter pressing removes suspended impurity therein, and then reduces the intractability of the circulating purification system of postorder, it is ensured that circular treatment obtains The clarity of the copper electrolyte arrived is high, and the electrolytic copper quality that electrolysis obtains is good, and one-level, the filter pressing of two grades of pressure filter 40,70 obtain Mud cake product directly as earth of positive pole production marketing.Preferably, described one-level, two grades of pressure filter 40,70 are sheet frame Filter plate aperture in pressure filter, and one-level, two grades of pressure filter 40,70 is respectively 70-100nm, 40-70nm, uses filter press Machine price is low, and filter plate is changed conveniently.

Concrete, as it is shown in figure 1, described preliminary clearning system also includes supernatant storage tank 80, supernatant storage tank 80 into and out of Mouth connects supernatant outlet 12 and the feed end 71 of two grades of pressure filter 70 of electrolysis bath 10 respectively, produces with concentrator 30 sedimentation Clear liquid and the filtrate produced through one-level pressure filter 40 filter pressing are the same, and this utility model is by the supernatant in electrolysis bath 10 also first warp Cross two grades of pressure filter 70 and carry out filter pressing process, to reduce the suspension content of copper electrolyte, after testing, use this utility model public The pretreatment system pretreatment opened makes existing circulating purification system process the content SS of float in the copper electrolyte obtained It can be controlled in less than 15.

Time actually used, it is preferred that as it is shown in figure 1, described preliminary clearning system also includes for circulating purification system recovery The dissolving tank 90 that thick copper sulfate dissolves again, the import of supernatant storage tank 80 is led in the lysate outlet 91 of dissolving tank 90.This Shen Description background technology please specify that the circulating purification system of existing copper electrolyte is carrying out to copper electrolyte When one electrodeposition purification, evaporation and concentration and filtration, the filtering residue filtered is thick copper sulfate, and these thick copper sulfate can directly be sold at a low price Sell, and the application is by arranging that these thick copper sulfate are first dissolved by dissolving tank 90, then passes through in supernatant storage tank 80 to treat two Level filter pressing and recirculation purify, so that thick copper sulfate weight solution obtains cycling and reutilization.

During concrete operations, for ensureing the reliable delivery of feed liquid, as it is shown in figure 1, the mud inlet 31 of described concentrator 30, one-level The defeated of pumping input feed liquid it is separately provided at the charging aperture 41 of pressure filter 40 and the feed end 71 of two grades of pressure filter 70 Send pump 100.

Claims

1. the preliminary clearning system of a copper electrolyte, it is characterised in that: the electrolysis bath (10) that includes being sequentially arranged, melt pit (20), Concentrator (30), one-level pressure filter (40) and circulating slot (50), the earth of positive pole outlet (11) of electrolysis bath (10) is through melt pit (10) Lead to the mud inlet (31) of concentrator (30), the mud discharging mouth of the charging aperture (41) connection concentrator (30) of one-level pressure filter (40) (32), the one-level filtrate (liquid (42) of one-level pressure filter (40), the purified liquor outlet (33) of concentrator (30) and electrolysis bath (10) Supernatant outlet (12) each lead to the inlet (51) of circulating slot (50), the liquid outlet (52) of circulating slot (50) leads to cupric electrolysis The circulating purification system of liquid.

The preliminary clearning system of copper electrolyte the most according to claim 1, it is characterised in that: described preliminary clearning system also includes filter Liquid storage tank (60) and two grades of pressure filter (70), the import of filtrate storage tank (60) one-level filtrate with one-level pressure filter (40) simultaneously goes out Mouth (42) is connected with the purified liquor outlet (33) of concentrator (30), and two grades of pressure filter (70) are led in the outlet of filtrate storage tank (60) Feed end (71), two grades of filtrate (liquids (72) of two grades of pressure filter (70) connect the inlet (51) of circulating slot (50).

The preliminary clearning system of copper electrolyte the most according to claim 2, it is characterised in that: described preliminary clearning system also includes Clear liquid storage tank (80), the import and export of supernatant storage tank (80) connects supernatant outlet (12) and two grades of electrolysis bath (10) respectively The feed end (71) of pressure filter (70).

The preliminary clearning system of copper electrolyte the most according to claim 3, it is characterised in that: described preliminary clearning system also includes supplying The dissolving tank (90) that the thick copper sulfate that circulating purification system reclaims dissolves again, lysate outlet (91) of dissolving tank (90) leads to The import of supernatant storage tank (80).

5. according to the preliminary clearning system of copper electrolyte described in Claims 2 or 3 or 4, it is characterised in that: described concentrator (30) Feed end (71) place of mud inlet (31), the charging aperture (41) of one-level pressure filter (40) and two grades of pressure filter (70) is respectively provided with There is the delivery pump (100) for pumping input feed liquid.

The preliminary clearning system of copper electrolyte the most according to claim 5, it is characterised in that: described one-level, two grades of pressure filter The filter plate aperture that (40,70) are in filter press, and one-level, two grades of pressure filter (40,70) is respectively 70-100nm, 40- 70nm。