Zinc electrodeposition cooling tower

Abstract

The utility model relates to a zinc electrodeposition cooling tower. The zinc electrodeposition cooling tower comprises a tower footing and further comprises a tower body arranged above the tower footing, and the inner wall of the tower body is lined with a high-temperature-resistant ultra-high molecular weight polyethylene layer; the air inlet is formed in the lower part of one side of the tower body; wherein a liquid inlet pipe is arranged at the top of the tower body, a spraying device is arranged at the top of the tower body, and the spraying device extends into the tower body. The inner wall of the tower body is lined with the high-temperature-resistant ultra-high molecular weight polyethylene layer, and the high-temperature-resistant ultra-high molecular weight polyethylene layer has relatively high non-stickiness, very weak surface adsorption capacity and excellent adhesion resistance, so that after the surface of the glass fiber reinforced plastic is lined with the high-temperature-resistant ultra-high molecular weight polyethylene layer, circulating liquid is not easy to adhere to the glass fiber reinforced plastic layer, and the service life of the tower body is prolonged. The cleaning period of the tower wall is prolonged, crystals adhered to the tower wall do not need to be cleaned frequently, and therefore it is guaranteed that the operation period of the cooling tower is not affected.

Description

Technical Field

[0001] The present application relates to the technical field of application of cooling devices for electrolysis, and in particular to a zinc electrolysis cooling tower. Background Art

[0002] A certain amount of heat will be generated during the zinc electrowinning production process, and zinc electrowinning requires maintaining the temperature of the electrolytic circulating liquid within a certain range (38-42°C). Too high a temperature will cause the precipitated zinc to dissolve back, resulting in negative effects such as electrolytic plate burning and increased energy consumption. In order to balance the electrolytic operating temperature, the zinc electrowinning workshop uses a cooling tower to cool the electrolytic circulating liquid.

[0003] The Chinese patent with patent number CN2423554Y discloses a zinc electrolyte glass fiber reinforced plastic cooling tower, which consists of a tower body, a tower base, a liquid inlet pipe, a spray device and a dripping device. The tower body is cylindrical, and in particular, the diameters of the tower top and the tower body cannot be greater than the diameter of the tower bottom; the liquid inlet pipe enters the top of the tower body from the bottom of the tower body, and its vertically upward main section and the horizontally arranged connecting beams arranged in the tower body, the spray main pipe, the main frame of the dripping device and the inner wall of the tower body form a rigid integral structure.

[0004] However, during the process of conceiving and realizing the above-mentioned application, the inventors discovered that in actual use, since the inner wall of the tower body is made of a fiberglass structure, the fiberglass tower wall is easily adhered after being soaked by the circulating liquid during use. In order to ensure the cooling effect of the cooling tower, it is necessary to frequently clean the crystals adhering to the tower wall, which affects the operation cycle of the cooling tower. Utility Model Content

[0005] In order to solve or partially solve the problems existing in the related art, the present application provides a zinc electrowinning cooling tower.

[0006] To achieve the above objectives, this application is implemented through the following technical solutions:

[0007] A zinc electrowinning cooling tower, comprising a tower base, the zinc electrowinning cooling tower further comprising:

[0008] The tower body is arranged above the tower base, and its inner wall is lined with a high temperature resistant ultra-high molecular weight polyethylene layer;

[0009] An air inlet is opened at the lower part of one side of the tower body;

[0010] A liquid inlet pipe is arranged on the top of the tower body, a spray device is arranged on one end of the tower body close to the top, and the liquid inlet pipe is connected with the spray device.

[0011] Optionally, the spraying device comprises:

[0012] The liquid tank connected to the liquid inlet pipe has a branch pipe connected to the side of the liquid tank in a star-shaped scattered shape. The branch pipe is provided with a liquid distribution pipe. The lower end of the liquid distribution pipe is vertically connected to a spray pipe, and the lower end of the spray pipe is connected to a nozzle.

[0013] Optionally, a fan-shaped dripping plate is provided below the liquid tank, and a packing layer is provided on the upper end surface of the fan-shaped dripping plate.

[0014] Optionally, fan blades are provided in the air inlet, the fan blades are connected to a motor, and the motor is fixed on the tower base through a mounting platform.

[0015] Optionally, a liquid outlet is provided at a lower portion of one side of the tower body.

[0016] Optionally, at least one nozzle is provided.

[0017] The beneficial effects of the present application are as follows: the inner wall of the tower body is lined with a high-temperature resistant ultra-high molecular weight polyethylene layer, the high-temperature resistant ultra-high molecular weight polyethylene layer has high non-stickiness, its surface adsorption capacity is very weak, and its anti-adhesion ability is excellent. Therefore, after the surface of the fiberglass is lined with the high-temperature resistant ultra-high molecular weight polyethylene layer, the circulating fluid is not easy to adhere thereto, so that the cleaning cycle of the tower wall is extended, and there is no need to frequently clean the crystals adhered to the tower wall, thereby ensuring that the operation cycle of the cooling tower is not affected.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0020] Figure 1 It is a structural schematic diagram of a zinc electrowinning cooling tower shown in an embodiment of the present application;

[0021] Figure 2 is a top view of a spray device shown in an embodiment of the present application;

[0022] Figure 3 1 is a top view of the fan-shaped drip plate shown in the embodiment of the present application.

[0023] Figure numerals: 1 tower base, 2 tower body, 3 air inlet, 4 spray device, 5 liquid inlet pipe, 6 liquid tank, 7 branch pipe, 8 spray pipe, 9 nozzle, 10 fan-shaped drip plate, 11 packing layer, 12 fan blades, 13 mounting platform, 14 liquid outlet, 15 liquid distribution pipe. DETAILED DESCRIPTION

[0024] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific situation.

[0027] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0028] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples" or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0029] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

[0030] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

[0031] In order to make the purpose, technical solutions and beneficial effects of the present application clearer, the preferred embodiments of the present application will be described in detail below in conjunction with the accompanying drawings to facilitate understanding by technical personnel.

[0032] Embodiment 1:

[0033] See also Figure 1 , a zinc electrowinning cooling tower, comprising a tower base 1, the zinc electrowinning cooling tower also comprising:

[0034] The tower body 2 is arranged above the tower base 1, and its inner wall is lined with a high temperature resistant ultra-high molecular weight polyethylene layer;

[0035] An air inlet 3 is provided at a lower portion of one side of the tower body 2;

[0036] A liquid inlet pipe 5 is provided at the top of the tower body 2 , and a spray device 4 is provided at one end of the tower body 2 close to the top, and the liquid inlet pipe 5 is connected to the spray device 4 .

[0037] Specifically, the lower end of the tower body 2 is fixedly connected to the upper end surface of the tower base 1, the tower base 1 is used to support the tower body 2, and the inner wall of the tower body 2 is lined with a high-temperature resistant ultra-high molecular weight polyethylene layer, which has high heat resistance and non-stickiness; a circulating liquid is passed into the liquid inlet pipe 5, and the circulating liquid is sprayed into the tower body 2 through the spray device 4, and the external cooling air enters the tower body 2 through the air inlet 3, and the air inlet 3 is located below the spray device 4;

[0038] During the cooling operation, the cooling air is passed into the tower body 2, and the circulating liquid with a higher temperature is passed into the liquid inlet pipe 5, and sprayed into the tower body 2 through the spray device 4. The cooling air and the circulating liquid exchange heat in the tower body 2, so that the heat of the circulating liquid is taken away by the cooling air;

[0039] During the spraying process, the high-temperature circulating liquid will be sprayed onto the inner wall of the tower body 2. The inner wall of the traditional tower body is made of a glass fiber reinforced plastic structure. During use, the glass fiber reinforced plastic tower wall is easily adhered after being soaked by the circulating liquid. In order to ensure the cooling effect of the cooling tower, it is necessary to frequently clean the crystals adhering to the tower wall, which affects the operation cycle of the cooling tower. In this embodiment, a high-temperature resistant ultra-high molecular weight polyethylene layer is lined on the inner wall of the tower body 2. The high-temperature resistant ultra-high molecular weight polyethylene layer has high non-stickiness, its surface adsorption capacity is very weak, and its anti-adhesion ability is excellent. Therefore, after the high-temperature resistant ultra-high molecular weight polyethylene layer is lined on the surface of the glass fiber reinforced plastic, the circulating liquid is not easy to adhere to it, so that the cleaning cycle of the tower wall is extended, and there is no need to frequently clean the crystals adhering to the tower wall, thereby ensuring that the operation cycle of the cooling tower is not affected;

[0040] In addition, since the circulating fluid has a relatively high temperature, ordinary ultra-high molecular weight polyethylene layers are not heat-resistant and will deform when heated. Therefore, a high-temperature resistant ultra-high molecular weight polyethylene layer is used in this embodiment, which can not only ensure non-stickiness but also withstand the high temperature of the circulating fluid without being easily deformed.

[0041] Optionally, the high temperature resistant ultra-high molecular weight polyethylene layer is obtained by adding a certain mass fraction of graphite, carbon black, polymer wax, etc., and a certain mass fraction of powdered natural inorganic minerals with special surface treatment into the ultra-high molecular weight polyethylene material, and its thermal deformation temperature is not less than 112°.

[0042] Embodiment 2:

[0043] See also Figure 1 , Figure 2 and Figure 3 , based on the first embodiment, further and optionally, the spray device 4 includes:

[0044] The liquid tank 6 is connected to the liquid inlet pipe 5, and the side of the liquid tank 6 is connected to the branch pipe 7 in a star-shaped scattered shape. The branch pipe 7 is provided with a liquid distribution pipe 15. The lower end of the liquid distribution pipe 15 is vertically connected to the spray pipe 8, and the lower end of the spray pipe 8 is connected to the nozzle 9.

[0045] Specifically, a through hole for installing the liquid inlet pipe 5 is opened on the upper end surface of the liquid tank 6, and the lower end of the liquid inlet pipe 5 is fixed in the through hole, so that the liquid inlet pipe 5 is connected with the liquid tank 6. A plurality of mounting holes adapted to the branch pipe 7 are opened on the side of the liquid tank 6, and one end of the plurality of branch pipes 7 is fixed in the mounting hole, so that the liquid tank 6 is connected with the branch pipe 7; a through hole matching the spray pipe 8 is opened on the lower end surface of the liquid distribution pipe 15, and the upper end of the spray pipe 8 is fixed in the through hole, so that the liquid distribution pipe 15 is connected with the spray pipe 8, and the nozzle 9 is fixed on the spray pipe 8, and the spraying direction of the nozzle 9 is toward the bottom of the tower body 2;

[0046] The spraying process is as follows: after the circulating liquid in the liquid inlet pipe 5 enters the liquid tank 6, it is diverted to various directions through the branch pipe 7. When the nozzle 9 is opened, the circulating liquid enters the spray pipe 8 through the liquid distribution pipe 15, and then is ejected in the form of a spray through the nozzle 9;

[0047] In this embodiment, by providing a liquid tank 6, a branch pipe 7, a liquid distribution pipe 15 and a nozzle 9, the high-temperature circulating liquid is ejected in a spray form, thereby increasing the contact area between the circulating liquid and the cooling air, thereby accelerating the cooling speed and improving the cooling effect.

[0048] Further and optionally, a fan-shaped dripping plate 10 is provided below the liquid tank 6 , and a packing layer 11 is provided on the upper end surface of the fan-shaped dripping plate 10 .

[0049] Specifically, the outer end of the fan-shaped drip plate 10 is fixed on the inner wall of the tower body 2, and a plurality of equally spaced gaps are provided on the fan-shaped drip plate 10, which allow the spray pipe 8 to pass through. The packing layer 11 also has a plurality of circular holes that allow the spray pipe 8 to pass through. The lower end of the spray pipe 8 passes through the packing layer 11 and the fan-shaped drip plate 10 in sequence and is connected to the nozzle 9.

[0050] Under the upward push of the cooling wind, the circulating liquid sprayed out through the nozzle 9 moves upward and hits the fan-shaped drip plate 10. Under the obstruction of the fan-shaped drip plate 10, most of the kinetic energy is consumed and condensed into droplets and falls down. Only a small amount of spray rises to the packing layer 11 and is absorbed by the packing layer 11.

[0051] In this embodiment, the fan-shaped dripping plate 10 and the packing layer 11 are provided to absorb the circulating liquid in a spray form, so that the concentration of the spray discharged outside the tower reaches the environmental protection emission standard.

[0052] Further and optionally, a fan blade 12 is provided in the air inlet 3 , and the fan blade 12 is connected to a motor, and the motor is fixed on the tower base 1 through a mounting platform 13 .

[0053] Specifically, the rotating shaft of the fan blade 12 is fixedly connected to the output end of the motor, the motor is fixed on the mounting platform 13, and the lower end surface of the mounting platform 13 is fixedly connected to the upper end surface of the tower base 1. When the motor is started, the motor drives the fan blade 12 to rotate, so that air flows, thereby generating cooling wind, which is blown into the tower body 2 through the air inlet 3;

[0054] In this embodiment, the fan blades 12 are provided to generate cooling wind, thereby providing cooling wind for cooling the circulating fluid.

[0055] Further and optionally, a liquid outlet 14 is opened at a lower portion of one side of the tower body 2 .

[0056] Specifically, the cooled circulating liquid is discharged through the liquid outlet 14 .

[0057] Further and optionally, at least one nozzle 9 is provided.

[0058] Specifically, a nozzle 9 is provided at the lower end of each spray pipe 8. Since the branch pipes 7 are arranged in a star-shaped scattered shape, the nozzles 9 are also arranged in a star-shaped scattered shape, so that the spray sprayed into the tower body 2 is uniform and sufficient, thereby improving the cooling effect of the spray.

[0059] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present application; the dimensions of the drawings are not related to the specific objects, and the dimensions of the objects can be changed arbitrarily.

Claims

1. A zinc electrowinning cooling tower, comprising a tower base (1), characterized in that: The zinc electrowinning cooling tower further comprises: The tower body (2) is arranged above the tower base (1), and the inner wall of the tower body (2) is lined with a high temperature resistant ultra-high molecular weight polyethylene layer; An air inlet (3) is provided at a lower portion of one side of the tower body (2); A liquid inlet pipe (5) is provided at the top of the tower body (2), a spray device (4) is provided at the top of the tower body (2), and the liquid inlet pipe (5) is connected to the spray device (4).

2. The zinc electrowinning cooling tower according to claim 1, characterized in that: The spraying device (4) comprises: A liquid tank (6) is connected to a liquid inlet pipe (5), and a branch pipe (7) is connected to the side of the liquid tank (6) in a star-shaped scattered manner. A liquid distribution pipe (15) is provided on the branch pipe (7). The lower end of the liquid distribution pipe (15) is vertically connected to a spray pipe (8), and the lower end of the spray pipe (8) is connected to a nozzle (9).

3. The zinc electrowinning cooling tower according to claim 2, characterized in that: A fan-shaped dripping plate (10) is provided below the liquid tank (6), and a packing layer (11) is provided on the upper end surface of the fan-shaped dripping plate (10).

4. The zinc electrowinning cooling tower according to claim 1, characterized in that: The air inlet (3) is provided with a fan blade (12), the fan blade (12) is connected to a motor, and the motor is fixed on the tower base (1) via a mounting platform (13).

5. The zinc electrowinning cooling tower according to claim 1, characterized in that: A liquid outlet (14) is provided at a lower portion of one side of the tower body (2).

6. The zinc electrowinning cooling tower according to claim 2, characterized in that: At least one nozzle (9) is provided.

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