CN208120766U - A kind of copper sulphate mother liquor purification recrystallization system - Google Patents

Abstract

The utility model discloses a kind of copper sulphate mother liquor purifications to recrystallize system, including purification system, vapo(u)rization system and crystal system, the purification system includes purification reaction kettle and filter press, and the discharge port of the purification reaction kettle is connect by a pump with the feed inlet of the filter press.The vapo(u)rization system includes separator, heat exchanger, surge tank and vacuum pump assembly, the first charging aperture of the separator is connect by a pump with the discharge port of the filter press, first discharge port of the separator is connect with the feed inlet of the heat exchanger, the discharge port of the heat exchanger is connect with the second charging aperture of the separator, second discharge port of the separator is connect with the feed inlet of the surge tank, and the discharge port of the surge tank is connect with the bleeding point of the vacuum pump group.The third discharge port of the separator is connect by a pump with the feed inlet of the crystal system.Technical solutions of the utility model solve the problems, such as that copper sulphate mother liquor can not be repeated as many times and use.

Description

A kind of copper sulphate mother liquor purification recrystallization system

Technical field

The utility model relates to technical field of waste water processing, in particular to a kind of copper sulphate mother liquor purification recrystallizes system.

Background technique

Using etching waste liquor as the technique of raw material production copper sulphate, it is with neutralization-filters pressing-mashing-acidification-crystallization processes at present Main, for the copper sulphate mother liquor after crystallization due to being recycled for multiple times, impurity enriched leads to not the production for copper sulphate, it is necessary to make The relatively low copper sludge of process for producing added value of opening a way, this just leads the waste of copper resource.Meanwhile opening a way processing copper sulphate mother liquor also A large amount of waste water can be generated, the pressure of wastewater treatment is caused

Utility model content

The main purpose of the utility model is to propose a kind of copper sulphate mother liquor purification recrystallization system, it is intended to solve copper sulphate Mother liquor can not be repeated as many times the problem of using.

To achieve the above object, the utility model proposes a kind of copper sulphate mother liquor purification recrystallize system, including purification System, vapo(u)rization system and crystal system, the purification system include purification reaction kettle and filter press, and the purification reaction kettle goes out Material mouth is connect by a pump with the feed inlet of the filter press.The vapo(u)rization system includes separator, heat exchanger, surge tank and true The first charging aperture of empty pump assembly, the separator is connect by a pump with the discharge port of the filter press, the separator First discharge port is connect with the feed inlet of the heat exchanger, the second charging aperture of the discharge port of the heat exchanger and the separator Connection, the second discharge port of the separator connect with the feed inlet of the surge tank, the discharge port of the surge tank with it is described The bleeding point of vacuum pump group connects.The third discharge port of the separator is connected by the feed inlet of a pump and the crystal system It connects.

Preferably, the crystal system is set as a crystallization kettle.

Preferably, a buffering hopper is also added between the filter press and the separator, the buffering hopper Feed inlet is connect with the discharge port of the filter press, and the discharge port of the buffering hopper passes through a pump and the of the separator The connection of one feed inlet.

Preferably, a cartridge filter, security personnel's filtering are also added between the buffering hopper and the separator The feed inlet of device is connect with the discharge port of the buffering hopper, and the discharge port of the cartridge filter passes through a pump and described point It is connected from device.

Preferably, the separator is set as an evaporation and concentration separator.

Compared with prior art, the utility model has the beneficial effects that：Solving copper sulphate mother liquor and can not being repeated as many times makes With the problem of, eliminate the metal impurities and organic matter in copper sulphate mother liquor, produce up-to-standard sulfuric acid copper products, prevent The waste of raw material, simultaneously, it is therefore prevented that the pollution of environment.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.

Fig. 1 is the structural schematic diagram that the utility model copper sulphate mother liquor purification recrystallizes system；

The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise Under every other embodiment obtained, fall within the protection scope of the utility model.

Referring to Fig.1, Fig. 1 is the structural schematic diagram that the utility model copper sulphate mother liquor purification recrystallizes system, the present embodiment A kind of copper sulphate mother liquor purification proposed recrystallizes system, including purification system, vapo(u)rization system and crystal system, the purification system System includes purification reaction kettle 1 and filter press 2, the discharge port of the purification reaction kettle 1 by a pump 10 and the filter press 2 into Material mouth connection.The vapo(u)rization system includes separator 3, heat exchanger 4, surge tank 5 and vacuum pump assembly 6, and the of the separator 3 One feed inlet is connect by a pump 10 with the discharge port of the filter press 2, the first discharge port of the separator 3 and the heat exchange The feed inlet of device 4 connects, and the discharge port of the heat exchanger 4 is connect with the second charging aperture of the separator 3, the separator 3 The second discharge port connect with the feed inlet of the surge tank 5, the pumping of 10 groups of the discharge port of the surge tank 5 and the vacuum pump Port connection.The third discharge port of the separator 3 is connect by a pump 10 with the feed inlet of the crystal system, the crystallization System is set as a crystallization kettle 7, and the separator 3 is set as an evaporation and concentration separator.

In the present embodiment, when carrying out purification recrystallization operation to copper sulphate mother liquor, copper sulphate mother liquor is put into institute first It states in purification reaction kettle 1, adds drug and carry out purification reaction.It should be noted that containing metal in the copper sulphate mother liquor Impurity and organic matter, therefore, the drug of investment include hydrogen peroxide and sodium hydroxide, and hydrogen peroxide can be with having in copper sulphate mother liquor Machine object is reacted, and organic matter is decomposed into carbon dioxide, sodium hydroxide can be carried out with the metal impurities in copper sulphate mother liquor Reaction generates precipitating and separates with copper sulphate mother liquor.After purification reaction, purified copper sulphate mother liquor is sent to filter press 2 Inside be separated by solid-liquid separation, by copper sulphate mother liquor impurity and precipitating further separate with copper sulphate mother liquor, then mistake be filtered out Copper sulphate mother liquor after miscellaneous introduces in separator 3.It should be noted that the sediment stayed in the filter press 2 can take out Landfill and burning disposal are done in drying, prevent from polluting the environment.After copper sulphate mother liquor enters separator 3, first gone out by it Material mouth enters the heat exchanger 4, and heat exchanger 4 heats copper sulphate mother liquor by high-temperature steam, by the temperature of copper sulphate mother liquor Degree increases rapidly.Copper sulphate mother liquor after heating is introduced again into separator 3.It should be noted that separator 3 passes through buffering Tank 5 is connected to vacuum pump assembly 6, and vacuum pump assembly 6 will do it pumping operation, to form a negative pressure space in separator 3, is added Copper sulphate mother liquor after heat carries out in the negative pressure space that separator 3 is formed, and boiling point can reduce, thus the portion in copper sulphate mother liquor Divide moisture that can evaporate into surge tank 5, remaining copper sulphate mother liquor stays in separator 3.It is evaporated and is made by this circulating-heating The concentration of industry, copper sulphate mother liquor reduces.It should be noted that 3 side wall of separator is equipped with a sample tap (not shown), Staff can be sampled detection to copper sulphate mother liquor by sample tap, when the mass fraction of copper ion in copper sulphate mother liquor When more than or equal to 1 18, by the first charging aperture of separator 3, second charging aperture, the first discharge port and the second discharge port It closes, opens its third discharge port, the copper sulphate mother liquor for being up to aimed concn introduces the crystallization kettle 7 and carries out crystallization operation. It should be noted that the crystallization kettle 7 is stirred operation to copper sulphate mother liquor by its internal agitating paddle, in whipping process In, the temperature of copper sulphate mother liquor reduces, and copper sulfate crystal is precipitated after being cooled to certain temperature, thus the copper sulphate knot needed for generating It is brilliant.

The present embodiment solves the problems, such as that copper sulphate mother liquor can not be repeated as many times and uses, and eliminates the gold in copper sulphate mother liquor Belong to impurity and organic matter, produces up-to-standard sulfuric acid copper products, prevent the waste of raw material, simultaneously, it is therefore prevented that the dirt of environment Dye.

Further, a buffering hopper 8, the buffering reservoir are also added between the filter press 2 and the separator 3 The feed inlet of slot 8 is connect with the discharge port of the filter press 2, it is described buffering hopper 8 discharge port by one pump 10 with it is described The first charging aperture of separator 3 connects.A cartridge filter 9 is also added between the buffering hopper 8 and the separator 3, The feed inlet of the cartridge filter 9 is connect with the discharge port of the buffering hopper 8, the discharge port of the cartridge filter 9 It is connect by a pump 10 with the separator 3.It should be noted that the buffering hopper 8 can be to purified copper sulphate Mother liquor carries out buffer function, prevents largely entering separator 3 to copper sulphate mother liquor, leads to system failure.Meanwhile security personnel's filtering Device 9 can filter copper sulphate mother liquor further progress, improve the purity of copper sulphate mother liquor, guarantee the quality of cupric sulphate crystal.

The above is only the preferred embodiments of the utility model, and therefore it does not limit the scope of the patent of the utility model, all Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in Other related technical areas are also included in the patent protection scope of the utility model.

Claims (5)

1. a kind of copper sulphate mother liquor purification recrystallizes system, which is characterized in that including purification system, vapo(u)rization system and system of crystallization System, the purification system include purification reaction kettle and filter press, and the discharge port of the purification reaction kettle passes through a pump and the pressure The feed inlet of filter connects；The vapo(u)rization system includes separator, heat exchanger, surge tank and vacuum pump assembly, the separator First charging aperture connect by a pump with the discharge port of the filter press, the first discharge port of the separator and the heat exchange The feed inlet of device connects, and the discharge port of the heat exchanger is connect with the second charging aperture of the separator, and the of the separator Two discharge ports are connect with the feed inlet of the surge tank, and the bleeding point of the discharge port of the surge tank and the vacuum pump assembly connects It connects；The third discharge port of the separator is connect by a pump with the feed inlet of the crystal system.

2. copper sulphate mother liquor purification as described in claim 1 recrystallizes system, which is characterized in that the crystal system is set as One crystallization kettle.

3. copper sulphate mother liquor purification as described in claim 1 recrystallizes system, which is characterized in that the filter press and described point From a buffering hopper is also added between device, the feed inlet of the buffering hopper is connect with the discharge port of the filter press, institute The discharge port for stating buffering hopper is connect by a pump with the first charging aperture of the separator.

4. copper sulphate mother liquor purification as claimed in claim 3 recrystallizes system, which is characterized in that the buffering hopper and institute It states and also adds a cartridge filter between separator, the discharge port of the feed inlet of the cartridge filter and the buffering hopper The discharge port of connection, the cartridge filter is connect by a pump with the separator.

5. copper sulphate mother liquor purification as described in claim 1 recrystallizes system, which is characterized in that the separator is set as one It is concentrated by evaporation separator.