Improved oil removal device for nickel sulfate solution

Abstract

The utility model provides an improved oil removal device for nickel sulfate solution, which comprises a tank body and a transverse liquid inlet purging mechanism, the transverse liquid inlet purging mechanism is arranged inside and is used for selectively conveying nickel sulfate solution, steam or compressed air into the tank body, a liquid inlet pipe is arranged at the top of the tank body, and a liquid outlet pipe is arranged at the bottom of the tank body. A liquid discharge pipe is arranged at the bottom of the tank body, a plurality of water distributors are arranged in the tank body from top to bottom at intervals, and activated carbon is filled in the tank body and located between every two adjacent water distributors. The nickel sulfate solution and activated carbon adsorption oil removal device adopts a longitudinal and transverse combined mode to adsorb and remove oil from a nickel sulfate solution and activated carbon, has the function of blowing compressed air and steam into the tank body in a dispersed manner, improves the reaction activity of the activated carbon, and enhances the adsorption removal effect on oil in the nickel sulfate solution.

Description

TECHNICAL FIELD

[0001] The utility model belongs to oil removal technical field, especially relate to a nickel sulfate solution improved oil removal device. BACKGROUND

[0002] In hydrometallurgical production, mixed clarifier, centrifugal extractor, extraction tower and other equipment are often used for large-scale continuous extraction and mixing and separation of two phases. In actual production process, the aqueous phase solution separated by the equipment still entrains a small amount of oil phase. Because the commonly used extractant has a certain hydrophilicity, in addition to the large particles of oil that are not clarified in time, a certain amount of oil exists in the feed liquid in the form of stable emulsion or even dissolution. If the oil entrained in the aqueous phase is not removed in time, not only the consumption of the extractant will be increased, but also the downstream process will be adversely affected, thereby reducing the quality of metallurgical products; at the same time, the oil phase components remaining in the aqueous phase will accumulate in the wastewater system, thereby increasing the difficulty of wastewater treatment.

[0003] The active carbon fixed bed is usually used for oil removal in the nickel sulfate solution oil removal process, which has the disadvantages of low effective utilization rate of active carbon and waste of part of the active carbon that does not fully participate in oil removal and is replaced together with the waste active carbon. UTILITY MODEL CONTENT

[0004] The utility model discloses to overcome the disadvantage problem of low effective utilization rate of active carbon in the process of active carbon fixed bed adsorption oil removal, and provide a nickel sulfate solution improved oil removal device.

[0005] The utility model discloses the following technical scheme is realized:

[0006] A nickel sulfate solution improved oil removal device, including jar body and transverse liquid inlet purging mechanism, the transverse liquid inlet purging mechanism is arranged internally, is used for the selectable delivery nickel sulfate solution, steam or compressed air to the jar body interior, the jar body top is equipped with the liquid inlet pipe, the bottom of jar body is equipped with the liquid outlet pipe, the jar body is equipped with a plurality of water distributors from top to bottom interval in, the jar body interior is filled with active carbon between the position of adjacent two water distributors.

[0007] Furthermore, the horizontal liquid inlet purge mechanism includes a steam delivery pipe for delivering steam, a compressed air delivery pipe for delivering compressed air, a nickel sulfate solution delivery pipe for delivering nickel sulfate solution, and multiple horizontal liquid inlet purge pipes. The multiple horizontal liquid inlet purge pipes are arranged in the tank body from top to bottom, and the two ends of the horizontal liquid inlet purge pipe respectively pass through the side wall of the tank body and extend to the outside of the tank body. One end of the horizontal liquid inlet purge pipe is connected to the nickel sulfate solution delivery pipe, and the other end thereof is connected to the steam delivery pipe and the compressed air delivery pipe respectively. The horizontal liquid inlet purge pipe is provided with multiple groups of liquid distribution pipes at intervals along its length direction, and each group of liquid distribution pipes includes multiple liquid distribution pipes arranged at intervals along the circumference of the horizontal liquid inlet purge pipe, and the liquid inlet pipe is connected to the nickel sulfate solution delivery pipe.

[0008] Furthermore, a first flange is provided at one end of the horizontal liquid inlet purge pipe, and a second flange is provided at the other end thereof. A first delivery pipe is provided on the first flange, and the nickel sulfate solution delivery pipe is connected to the first delivery pipe. A second delivery pipe is provided on the second flange, and the second delivery pipe is respectively connected to the steam delivery pipe and the compressed air delivery pipe.

[0009] Furthermore, a first manual butterfly valve is provided on the nickel sulfate solution delivery pipe, a second manual butterfly valve is provided on the liquid inlet pipe, a third manual butterfly valve is provided on the liquid discharge pipe, a fourth manual butterfly valve is provided on the steam delivery pipe, and a fifth manual butterfly valve is provided on the compressed air delivery pipe.

[0010] Furthermore, the liquid inlet pipe is provided with a first regulating valve and a first flowmeter, the first delivery pipe is provided with a second regulating valve and a second flowmeter, and the second delivery pipe is provided with a third regulating valve and a third flowmeter.

[0011] Compared with the existing technology, the beneficial effects of the present invention are: it adopts a combination of longitudinal and transverse methods to carry out adsorption and oil removal of nickel sulfate solution and activated carbon, and at the same time has the function of diffusely blowing compressed air and steam into the tank body, which improves the reaction activity of activated carbon and strengthens the adsorption and removal effect of oil in nickel sulfate solution. The device of the present invention has a simple structure and low cost. It has higher production efficiency and excellent quality control indicators than the traditional activated carbon fixed bed with only top liquid inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural schematic diagram of the improved oil removal device for nickel sulfate solution of the utility model.

[0013] Figure 2 This is an AA cross-sectional view of the horizontal liquid inlet purge pipe in the improved nickel sulfate solution degreasing device of the utility model.

[0014] In the figure, 1-tank body, 2-liquid inlet pipe, 3-liquid discharge pipe, 4-water distributor, 5-activated carbon, 6-steam delivery pipe, 7-compressed air delivery pipe, 8-nickel sulfate solution delivery pipe, 9-horizontal liquid inlet purge pipe, 10-liquid distribution pipe, 11-first flange, 12-second flange, 13-first delivery pipe, 14-second delivery pipe, 15-first manual butterfly valve, 16-second manual butterfly valve, 17-third manual butterfly valve, 18-fourth manual butterfly valve, 19-fifth manual butterfly valve, 20-first regulating valve, 21-first flowmeter, 22-second regulating valve, 23-second flowmeter, 24-third regulating valve, 25-third flowmeter. DETAILED DESCRIPTION

[0015] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0017] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. At the same time, in the description of this utility model, the terms "first", "second", etc. are used only to distinguish the description and should not be understood as indicating or implying relative importance.

[0018] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the present invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0020] See also Figure 1 , Figure 1 This is a schematic diagram of the structure of the improved degreasing device for nickel sulfate solution of the present invention. For ease of display, the activated carbon in the figure is only schematic; in reality, the activated carbon fills the space between two adjacent water distributors. An improved degreasing device for nickel sulfate solution includes a tank body 1 and a transverse liquid inlet and purge mechanism. The transverse liquid inlet and purge mechanism is disposed internally and is used to selectively deliver nickel sulfate solution, steam, or compressed air to the interior of the tank body 1. The top of the tank body 1 is provided with a liquid inlet pipe 2, the bottom of the tank body 1 is provided with a liquid discharge pipe 3, and a plurality of water distributors 4 are spaced apart from top to bottom within the tank body 1. The space between two adjacent water distributors 4 within the tank body 1 is filled with activated carbon 5.

[0021] The improved degreasing device for nickel sulfate solution, featuring a transverse liquid inlet and purge mechanism added to the middle of the tank body 1, effectively delivers nickel sulfate solution from the center of the tank body 1, allowing the activated carbon 5 to quickly adsorb and bind with tiny oil droplets in the nickel sulfate solution. This improves the effective utilization rate of the activated carbon 5 and eliminates the phenomenon where some activated carbon 5 is unable to re-engage with the tiny oil droplets due to spatial isolation and adsorption. The transverse liquid inlet and purge mechanism also delivers steam and compressed air to purge and desorb tiny oil droplets trapped between and within the activated carbon 5, thereby improving the utilization rate of the activated carbon 5. Combined with multiple water distributors 4, the device distributes the liquid evenly, eliminating the problem of activated carbon 5 in corners and blind spots not being able to fully contact the solution, increasing the overall participation rate of the activated carbon 5 and improving production efficiency. In one embodiment, the water distributor 4 can be a sieve-plate water cap water distributor 4. A sieve-plate water cap water distributor 4 is a device used in water treatment systems. Its primary function is to distribute water according to a certain pattern over a given working area to ensure even water distribution. The water distributor 4 is usually made of stainless steel or other corrosion-resistant materials and has good corrosion resistance and durability.

[0022] Please refer to Figure 2 , Figure 2In an embodiment, the transverse liquid inlet blowing mechanism comprises a steam conveying pipe 6 for conveying steam, a compressed air conveying pipe 7 for conveying compressed air, a nickel sulfate solution conveying pipe 8 for conveying the nickel sulfate solution, and a plurality of transverse liquid inlet blowing pipes 9, the plurality of transverse liquid inlet blowing pipes 9 are arranged in the tank body 1 in a top-to-bottom interval, two ends of the transverse liquid inlet blowing pipe 9 respectively pass through the side wall of the tank body 1 and extend to the outside of the tank body 1, one end of the transverse liquid inlet blowing pipe 9 is connected with the nickel sulfate solution conveying pipe 8, and the other end is respectively connected with the steam conveying pipe 6 and the compressed air conveying pipe 7, a plurality of groups of liquid distribution pipes 10 are arranged along the length direction of the transverse liquid inlet blowing pipe 9, each group of liquid distribution pipes 10 comprises a plurality of liquid distribution pipes 10 arranged in a circumferential interval of the transverse liquid inlet blowing pipe 9, and the liquid inlet pipe 2 is connected with the nickel sulfate solution conveying pipe 8.

[0023] In an embodiment, one end of the transverse liquid inlet blowing pipe 9 is provided with a first flange 11, and the other end is provided with a second flange 12, a first conveying pipe 13 is arranged on the first flange 11, the nickel sulfate solution conveying pipe 8 is connected with the first conveying pipe 13, a second conveying pipe 14 is arranged on the second flange 12, and the second conveying pipe 14 is respectively connected with the steam conveying pipe 6 and the compressed air conveying pipe 7. The arrangement facilitates the connection of the transverse liquid inlet blowing pipe 9 with the steam conveying pipe 6, the compressed air conveying pipe 7 and the nickel sulfate solution conveying pipe 8.

[0024] In an embodiment, a first manual butterfly valve 15 is arranged on the nickel sulfate solution conveying pipe 8, a second manual butterfly valve 16 is arranged on the liquid inlet pipe 2, a third manual butterfly valve 17 is arranged on the liquid outlet pipe 3, a fourth manual butterfly valve 18 is arranged on the steam conveying pipe 6, and a fifth manual butterfly valve 19 is arranged on the compressed air conveying pipe 7. The manual butterfly valves are used to control the conveying of the nickel sulfate solution, steam or compressed air into the tank body 1 and the discharge of the oil-removed nickel sulfate solution from the tank body 1.

[0025] In one embodiment, the liquid inlet pipe 2 is provided with a first regulating valve 20 and a first flowmeter 21, the first delivery pipe 13 is provided with a second regulating valve 22 and a second flowmeter 23, and the second delivery pipe 14 is provided with a third regulating valve 24 and a third flowmeter 25. The regulating valves can control the flow rate of each pipe, and the flowmeters can measure the flow rate of each pipe.

[0026] The following briefly describes the working process of the utility model:

[0027] 1. Under normal production conditions, the first manual butterfly valve 15, first regulating valve 20, and second manual butterfly valve 16 are opened in sequence. The nickel sulfate solution enters the tank body 1 from the top, then passes through each layer of water distributor 4 and each layer of activated carbon 5, collecting at the bottom of the tank body 1. The third manual butterfly valve 17 is then opened to allow the nickel sulfate solution, after the activated carbon 5 has absorbed and removed the oil, to be discharged from the tank body 1 through the drain pipe 3.

[0028] 2. If the oil content of the nickel sulfate solution after the activated carbon 5 is adsorbed and deoiled does not meet the standard, the second regulating valve 22 is opened, and the nickel sulfate solution is transported through multiple horizontal liquid inlet purge pipes 9, thereby combining the longitudinal and transverse methods to carry out the adsorption and deoiling of the nickel sulfate solution and the activated carbon 5 particles.

[0029] 3. During the intermittent period of production operation, close the first manual butterfly valve 15, the first regulating valve 20, the second manual butterfly valve 16 and the second regulating valve 22, open the fourth manual butterfly valve 18, the fifth manual butterfly valve 19 and the third regulating valve 24, and diffusely blow compressed air and steam into the tank body 1 for 30 minutes and 30 minutes, so as to purge and desorb the tiny oil droplets between and inside the activated carbon 5, improve the reaction activity and utilization rate of the activated carbon 5, and enhance the adsorption and removal effect of the oil in the nickel sulfate solution.

[0030] 4. Open the first manual butterfly valve 15, the first regulating valve 20, the second manual butterfly valve 16, and the second regulating valve 22. Close the fourth manual butterfly valve 18, the fifth manual butterfly valve 19, and the third regulating valve 24. The nickel sulfate solution is again delivered through the liquid inlet pipe 2 and the transverse liquid inlet purge pipe 9. A combination of longitudinal and transverse methods is used to remove oil by adsorption of the nickel sulfate solution and the activated carbon 5 particles.

[0031] The above are only preferred embodiments of the present invention and do not limit the present invention in any form. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An improved degreasing device for nickel sulfate solution, characterized in that: It includes a tank body and a horizontal liquid inlet and purge mechanism, which is arranged inside and is used to selectively transport nickel sulfate solution, steam or compressed air into the tank body. A liquid inlet pipe is provided on the top of the tank body, and a liquid discharge pipe is provided at the bottom of the tank body. A plurality of water distributors are arranged in the tank body from top to bottom, and the position between two adjacent water distributors inside the tank body is filled with activated carbon.

2. The improved degreasing device for nickel sulfate solution according to claim 1, characterized in that: The horizontal liquid inlet purge mechanism includes a steam delivery pipe for delivering steam, a compressed air delivery pipe for delivering compressed air, a nickel sulfate solution delivery pipe for delivering nickel sulfate solution, and multiple horizontal liquid inlet purge pipes. The multiple horizontal liquid inlet purge pipes are arranged in the tank body from top to bottom. The two ends of the horizontal liquid inlet purge pipe respectively pass through the side wall of the tank body and extend to the outside of the tank body. One end of the horizontal liquid inlet purge pipe is connected to the nickel sulfate solution delivery pipe, and the other end thereof is connected to the steam delivery pipe and the compressed air delivery pipe respectively. The horizontal liquid inlet purge pipe is provided with multiple groups of liquid distribution pipes at intervals along its length direction. Each group of liquid distribution pipes includes multiple liquid distribution pipes arranged at intervals along the circumference of the horizontal liquid inlet purge pipe. The liquid inlet pipe is connected to the nickel sulfate solution delivery pipe.

3. The improved degreasing device for nickel sulfate solution according to claim 2, characterized in that: A first flange is provided at one end of the horizontal liquid inlet purge pipe, and a second flange is provided at the other end thereof. A first delivery pipe is provided on the first flange, and the nickel sulfate solution delivery pipe is connected to the first delivery pipe. A second delivery pipe is provided on the second flange, and the second delivery pipe is respectively connected to the steam delivery pipe and the compressed air delivery pipe.

4. The improved degreasing device for nickel sulfate solution according to claim 3, characterized in that: A first manual butterfly valve is provided on the nickel sulfate solution delivery pipe, a second manual butterfly valve is provided on the liquid inlet pipe, a third manual butterfly valve is provided on the liquid discharge pipe, a fourth manual butterfly valve is provided on the steam delivery pipe, and a fifth manual butterfly valve is provided on the compressed air delivery pipe.

5. The improved degreasing device for nickel sulfate solution according to claim 4, characterized in that: The liquid inlet pipe is provided with a first regulating valve and a first flow meter, the first delivery pipe is provided with a second regulating valve and a second flow meter, and the second delivery pipe is provided with a third regulating valve and a third flow meter.

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