Detachable vacuum evaporator

Abstract

The utility model discloses a detachable vacuum evaporator which comprises an evaporation bin, a conveying part communicated with the evaporation bin and a deposition part, the deposition part is located at the upper end of the conveying part, a plurality of tube nests arranged in an array are arranged in the conveying part, and the tube nests are communicated with the bottom of the deposition part. The deposition part comprises a containing tank and a sealing cover plate installed at the upper end of the containing tank, a plurality of deposition pipes are arranged in the containing tank, and the deposition pipes are located at the upper ends of the corresponding row pipes to form deposition channels for deposition of insoluble substances in the electrolyte. According to the utility model, the operation difficulty is reduced, and the vacuum evaporation efficiency of the electrolyte is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolyte treatment, in particular to a detachable vacuum evaporator. Background Art

[0002] The vacuum evaporator evaporates the electrolyte in the titanium tubes through steam heating to concentrate the electrolyte and increase the concentration of each element, so that the electrolyte containing high acid and high impurities can enter the next process for impurity removal.

[0003] However, the electrolyte contains calcium and magnesium ions, and the tubes are heated quickly, the temperature is too high, and after the electrolyte is heated and concentrated, insoluble substances such as calcium and magnesium compounds precipitate to form scale. The scale is hard in texture. As the concentration level increases, the hardness increases and the cleaning becomes more difficult. The blockage of titanium heat exchange tubes and auxiliary equipment pipelines will accelerate. At the same time, there are a large number of tubes, with a total of 273 DN30 tubes, each of which is about 8 meters long. Usually, the tubes will be blocked by scale in 2 months, and the tubes need to be disassembled separately for cleaning. The operation is complicated and inefficient, which seriously affects the production efficiency. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a detachable vacuum evaporator, which reduces the difficulty of operation and improves the efficiency of vacuum evaporation of electrolyte.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A detachable vacuum evaporator comprises an evaporation chamber, a conveying portion connected to the evaporation chamber, and a deposition portion, wherein the deposition portion is located at the upper end of the conveying portion, a plurality of arrayed tubes are arranged inside the conveying portion, and the tubes are connected to the bottom of the deposition portion, the deposition portion comprises a holding tank and a sealing cover plate installed at the upper end of the holding tank, a plurality of deposition tubes are arranged inside the holding tank, and the deposition tubes are located at the upper ends of the corresponding tubes to form deposition channels for the deposition of insoluble substances in the electrolyte.

[0007] Preferably, the plurality of deposition tubes are connected via a first connecting workpiece.

[0008] Preferably, the first connection workpiece and the sealing cover plate are connected via a second connection workpiece.

[0009] Preferably, the outer diameter of the deposition tube is smaller than the inner diameter of the tube array, and the deposition tube portion extends into the interior of the tube array.

[0010] Preferably, the deposition tube comprises a conveying end and a sealing end, the sealing end has a truncated cone cross section, and the sealing end is located close to the tube array side.

[0011] Preferably, a telescopic device is provided on the top of the sealing cover plate, and the telescopic device comprises a telescopic base and a telescopic end, and the telescopic end is connected to a plurality of deposition tubes.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] Through the above structural design, a deposition tube is arranged in the deposition section so as to centrally deposit the electrolyte and control the scale to be precipitated on the inner wall of the deposition tube, so as to facilitate the subsequent centralized treatment of the deposition tube and the scale. At this time, there is no need to dismantle and replace the multiple tubes as a whole, which reduces the difficulty of operation and improves the efficiency of vacuum evaporation of the electrolyte. The modified equipment has low manufacturing cost, simple operation and simple structure, and multiple sets can be customized for recycling, which greatly improves the comprehensive benefits of the vacuum evaporator. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the conveying part and the tube structure of the utility model.

[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the internal cross-sectional structure.

[0017] Figure 4 This is a schematic diagram of the deposition tube of the utility model structure being taken out.

[0018] Figure 5 This is a schematic diagram of a preferred implementation of the structural deposition tube of the utility model.

[0019] Figure 6 This is a schematic diagram of the structure of the telescopic device of the utility model.

[0020] In the figure: 100, deposition part; 110, containing tank; 120, sealing cover plate; 121, second connection workpiece; 122, first connection workpiece; 200, conveying part; 210, tube array; 300, evaporation chamber; 400, deposition tube; 410, conveying end; 420, sealing end; 500, telescopic device; 510, telescopic base; 520, telescopic piston; 530, telescopic end. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0023] During the copper electrolytic refining process, the composition of the electrolyte is constantly changing, the copper ion concentration is constantly rising, impurities are constantly accumulating, and the sulfuric acid concentration is gradually decreasing. In order to maintain the copper, acid content and impurity concentration in the electrolyte within the specified range, the electrolyte must be purified and adjusted to ensure the normal progress of the electrolysis process. As the electrolysis proceeds, the copper ion concentration in the electrolyte will be very high, affecting the electrolysis. In order to keep the copper ion concentration constant, the excess copper ions must be removed. The copper is first removed by electrowinning, and then the electrolyte is evaporated, cooled, and separated to produce copper sulfate and remove copper ions.

[0024] The vacuum evaporator evaporates the electrolyte in the titanium tubes through steam heating to concentrate the electrolyte and increase the concentration of each element, so that the electrolyte containing high acid and high impurities can enter the next process for impurity removal. However, the electrolyte contains calcium and magnesium ions, and the tube temperature is too high. After the electrolyte is heated and concentrated, insoluble substances such as calcium and magnesium compounds are precipitated, and scaling is gradually formed. The scaling material has a hard texture. As the concentration degree increases, the hardness will increase and the cleaning difficulty will increase. The blockage of titanium heat exchange tubes and auxiliary equipment pipelines will accelerate. At the same time, there are a large number of tubes, with a total of 273 DN30 tubes, each tube is about 8 meters long. Usually, the tubes will be blocked by scaling in 2 months, and the tubes need to be disassembled separately for cleaning. The operation is complicated and inefficient, which seriously affects the production efficiency.

[0025] Refer to the attached Figure 1 -Attached Figure 6A detachable vacuum evaporator comprises an evaporation chamber 300, a conveying part 200 connected to the evaporation chamber 300, and a deposition part 100. The deposition part 100 is located at the upper end of the conveying part 200. During the purification of the electrolyte, the electrolyte at the bottom of the evaporation chamber 300 passes through the conveying part 200 and enters the deposition part 100. At the same time, the untreated electrolyte is continuously input and synchronously enters the evaporation chamber 300 for purification. A plurality of array-arranged tubes 210 are arranged inside the conveying part 200 for conveying the electrolyte into the evaporation chamber 300 for evaporation, heating and concentration. The tubes 210 are arranged in an array to convey the electrolyte into the evaporation chamber 300 for evaporation, heating and concentration. 10 is connected to the bottom of the deposition section 100, the deposition section 100 includes a holding tank 110 and a sealing cover plate 120 installed on the upper end of the holding tank 110, a plurality of deposition tubes 400 are arranged inside the holding tank 110, the deposition tubes 400 are located at the upper ends of the corresponding array tubes 210 to form deposition channels for the deposition of insoluble substances in the electrolyte, the deposition tubes 400 are located near one side of the evaporation bin 300, the insoluble substances in the electrolyte are deposited on the inner walls of the deposition tubes 400, when the inner walls of the deposition tubes 400 are deposited to a certain thickness, the plurality of deposition tubes 400 are taken out, and the deposition tubes 400 can be processed separately.

[0026] It should be noted here that after the deposition tube 400 is installed inside the holding tank 110, the bottom of the deposition tube 400 and the top of the array tube 210 are in an accurately docked and tightly pressed state, and the electrolyte enters the deposition tube 400 from the array tube 210 and finally flows out from the top of the deposition tube 400. The above-mentioned design allows the electrolyte to pass through the deposition tube 400 to the greatest extent for the deposition of scaling substances.

[0027] Through the above-mentioned structural design, a deposition tube 400 is arranged in the deposition section 100 so as to centrally deposit the electrolyte and control the scale to be precipitated on the inner wall of the deposition tube 400, so as to facilitate the subsequent centralized treatment of the deposition tube 400 and the scale. At this time, there is no need to disassemble and replace the multiple tube arrays 210 as a whole, which reduces the difficulty of operation and improves the efficiency of vacuum evaporation of the electrolyte.

[0028] It should also be noted here that specific ions can be induced to deposit on the inner wall of the deposition tube 400 by electrolysis, so as to further control the scaling of insoluble substances in the deposition tube 400 and avoid affecting the deposition part 100 or other structures; it is convenient to centrally clean the scaling substances, further improving the overall processing efficiency.

[0029] Furthermore, if the electrolytic treatment method is not adopted, the electrolyte enters the normal temperature deposition tube 400 after being heated and concentrated by high-temperature steam, the temperature of the electrolyte drops suddenly, and a large amount of insoluble matter is precipitated in the deposition tube 400 to form scale. It is only necessary to regularly disassemble the deposition part 100 for cleaning or configure a spare deposition part 100 for replacement, so as to reduce the deposition and scaling of the tube array 210, extend the service life of the vacuum evaporator, improve the overall processing efficiency, and reduce the labor cost and equipment use cost.

[0030] Furthermore, multiple deposition tubes 400 are connected by a first connecting workpiece 122, where the first connecting workpiece 122 can be selected as a disc-shaped workpiece, which can fix multiple deposition tubes 400 to achieve synchronous removal of multiple deposition tubes 400, thereby improving the efficiency of removal, cleaning and installation of the deposition tubes 400.

[0031] Furthermore, the first connecting workpiece 122 and the sealing cover plate 120 are connected via the second connecting workpiece 121, and the deposition tube 400 and the first connecting workpiece 122 can be connected and positioned via the second connecting workpiece 121, and a plurality of deposition tubes 400 can be taken out simultaneously after the sealing cover plate 120 is opened; at the same time, after the sealing cover plate 120 is sealed, the plurality of deposition tubes 400 can be positioned so that they can be located at a predetermined position at the upper end of the corresponding array of tubes 210, so that the electrolyte can pass through normally, thereby achieving effective scaling deposition.

[0032] Preferably, the outer diameter of the deposition tube 400 is smaller than the inner diameter of the array tube 210, and a portion of the deposition tube 400 extends into the interior of the array tube 210. Through the above-mentioned structural design, the sealing distance between the conveying end 410 and the array tube 210 can be extended, thereby enhancing the sealing effect therebetween, allowing more electrolyte to pass through the deposition tube 400, and allowing the insoluble substances to be deposited on the inner wall of the deposition tube 400 to the greatest extent.

[0033] The deposition tube 400 here includes a conveying end 410 and a sealing end 420. The cross-section of the sealing end 420 is a truncated cone. The sealing end 420 is located on the side close to the array tube 210. By setting the sealing end 420 to be a truncated cone, the assembly process between the deposition tube 400 and the array tube 210 can be further simplified, and at the same time, the two can be more tightly abutted to avoid electrolyte leakage; the top of the array tube 210 here can be set to an arc surface that is compatible with the sealing end 420 to further enhance the sealing effect.

[0034] A telescopic device 500 is arranged on the top of the sealing cover plate 120. The telescopic device 500 includes a telescopic base 510 and a telescopic end 530. The telescopic end 530 is connected to a plurality of deposition tubes 400. After the sealing cover plate 120 is installed, the telescopic device 500 can be used to control the extension of the plurality of deposition tubes 400 so that the bottom of the deposition tube 400 is pressed against the tube array 210, thereby further enhancing the sealing between the two and avoiding leakage of electrolyte without effective scaling deposition. At the same time, the second connecting workpiece 121 here can be movably designed so that the end of the telescopic end 530 is connected to the second connecting workpiece 121, thereby realizing synchronous control of the extension and retraction of the plurality of deposition tubes 400.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A detachable vacuum evaporator, comprising an evaporation chamber (300), a conveying portion (200) connected to the evaporation chamber (300), and a deposition portion (100), wherein the deposition portion (100) is located at an upper end of the conveying portion (200), and characterized in that: A plurality of arrayed tubes (210) are arranged inside the transport section (200); the tubes (210) are in communication with the bottom of the deposition section (100); the deposition section (100) comprises a holding tank (110) and a sealing cover plate (120) mounted on the upper end of the holding tank (110); a plurality of deposition tubes (400) are arranged inside the holding tank (110); the deposition tubes (400) are located at the upper ends of corresponding tubes (210) to form deposition channels for deposition of insoluble substances in the electrolyte.

2. A detachable vacuum evaporator according to claim 1, characterized in that: The plurality of deposition tubes (400) are connected via a first connection workpiece (122).

3. A detachable vacuum evaporator according to claim 2, characterized in that: The first connection workpiece (122) and the sealing cover plate (120) are connected via a second connection workpiece (121).

4. The detachable vacuum evaporator according to claim 1, characterized in that: The outer diameter of the deposition tube (400) is smaller than the inner diameter of the tube array (210), and a portion of the deposition tube (400) extends into the interior of the tube array (210).

5. The detachable vacuum evaporator according to claim 1, characterized in that: The deposition tube (400) comprises a conveying end (410) and a sealing end (420); the sealing end (420) has a truncated cone cross section; the sealing end (420) is located on a side close to the tube array (210).

6. The detachable vacuum evaporator according to claim 5, characterized in that: A telescopic device (500) is provided on the top of the sealing cover plate (120), wherein the telescopic device (500) comprises a telescopic base (510) and a telescopic end (530), and the telescopic end (530) is connected to a plurality of deposition tubes (400).

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