Purification tower for purifying industrial-grade hydrogen peroxide

Abstract

The utility model belongs to the technical field of hydrogen peroxide production equipment, and particularly provides a purification tower for purifying industrial-grade hydrogen peroxide, which comprises a tower body, the top of the tower body is provided with an exhaust port, one side of the upper part of the tower body is provided with a transverse feed port, and the bottom of the tower body is provided with a discharge port. A plurality of groups of distributors and structured packing are arranged in the tower body from top to bottom, a collector is arranged between every two adjacent groups, and the distributor in the uppermost group is communicated with the feed port; a transverse steam inlet is formed in one side of the lower part of the tower body, a steam outlet is formed in the other opposite side of the lower part of the tower body, and the steam inlet and the steam outlet are both positioned at the bottoms of the lowest group of distributor and structured packing. According to the hydrogen peroxide purification device disclosed by the utility model, through the multi-stage distribution of the plurality of groups of distributors and structured packing and the arrangement of steam heating, organic matters in hydrogen peroxide can be separated quickly, the content of total organic carbon (TOC) is reduced, and the purification efficiency and effect are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydrogen peroxide production equipment technical field relates to a kind of purification tower for purifying industrial grade hydrogen peroxide. BACKGROUND

[0002] Hydrogen peroxide, scientific name hydrogen peroxide aqueous solution, generally refers to the colorless transparent aqueous solution generated after hydrogen peroxide and water are mixed, is a strong oxidant, and is widely used in industrial bleaching, food sterilization and surgical disinfection and other fields. Its purity has a very important influence on the yield, electrical performance and reliability of integrated circuits.

[0003] The prior art is to remove organic compounds from the crude hydrogen peroxide after extraction by a purification tower to reduce the total organic carbon (TOC) content. However, the existing purification tower has low efficiency in separating organic matter due to structural limitations, thereby affecting the purification efficiency and effect of hydrogen peroxide. UTILITY MODEL CONTENT

[0004] To solve the technical problems in the prior art, the utility model provides a purification tower for purifying industrial grade hydrogen peroxide, which comprises a tower body. The top of the tower body is provided with an exhaust port, the upper side is provided with a horizontal feed inlet, and the bottom is provided with a discharge port. A plurality of distributors and structured packings are arranged in the tower body from top to bottom, and a collector is arranged between adjacent two groups. The plurality of distributors and structured packings are located below the feed inlet.

[0005] The lower side of the tower body is provided with a horizontal steam inlet, and the opposite side is provided with a steam outlet. The steam inlet and the steam outlet are located at the bottom of the lowermost group of distributors and structured packings.

[0006] Further, the tower body is also provided with a cooling assembly, which is installed between the steam inlet and the discharge port.

[0007] Further, the cooling assembly comprises a coil pipe, a water inlet and a water outlet. The coil pipe is located between the steam inlet and the discharge port. The water inlet and the water outlet are arranged on one side of the tower body and communicate with both ends of the coil pipe, respectively. The coil pipe is connected to an external water source through the water inlet.

[0008] Further, the water inlet is located below the water outlet.

[0009] Further, the distributors and structured packings comprise three groups. A concentrated product outlet is formed in the structured packing of the lowermost group to communicate with the outside.

[0010] Further, the material of the tower body is 316L / EP.

[0011] Advantages:

[0012] 1. The utility model discloses a multistage distribution of multiple distributors and structured packing and the setting of steam warming, which can accelerate the separation of organic matter in hydrogen peroxide, reduce total organic carbon (TOC) content, and improve purification efficiency and effect.

[0013] 2. The utility model discloses the setting of the cooling assembly including the coil pipe, water inlet and water outlet, which can effectively cool down, save energy consumption, facilitate subsequent process use, specifically utilize the spiral coiled pipe to increase the contact area with material, combine the setting of circulating water to continuously take away heat, through the setting of water inlet below water outlet, cooling water and material can realize the counter attack, ensure that both fully contact, improve the cooling effect. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0015] Figure 1 It is the whole structure schematic diagram of the utility model.

[0016] Mark explanation:

[0017] 1, tower body;2, exhaust port;3, feed inlet;4, discharge port;5, distributor;6, structured packing;7, collector;8, steam inlet;9, steam outlet;10, coil pipe;11, water inlet;12, water outlet;13, concentrated product outlet. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below. In the following description, a lot of specific details are set forth in order to fully understand the present application. But the present application can be implemented in many other ways different from the description, and those skilled in the art can make similar improvements without departing from the connotation of the present application, therefore the present application is not limited by the following disclosed specific embodiments.

[0019] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0020] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0021] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0023] It is to be understood that when an element such as a layer, region or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. It will be understood that, when a term is used in the singular herein, it is also intended that the term be used in the plural, and vice versa, as appropriate. The terminology used herein, such as "vertical," "horizontal," "upper," "lower," "left," "right," and the like, is for the purpose of illustration only and is not intended to be limiting.

[0024] The utility model provides a kind of purification tower for purifying industrial grade hydrogen peroxide, as shown in figure Figure 1 The tower body 1 is made of 316L / EP, which has high corrosion resistance, high cleanliness and precise size control. The top of the tower body 1 is provided with an exhaust port 2. The upper side is provided with a horizontal feed inlet 3. The bottom is provided with a discharge port 4. Inside the tower body 1, from top to bottom, there are multiple groups of distributors 5 and structured packings 6. The distributor 5 is located above the structured packing 6. It is used to evenly distribute the incoming material fluid on the structured packing 6. Between any two adjacent groups, there is a collector 7 for capturing, separating or recycling specific components. The distributor 5 in the uppermost group is connected to the feed inlet 3. Specifically, the distributor 5 and the structured packing 6 include three groups. In the lowermost group, the structured packing 6 is provided with a concentrated product outlet 13 connected to the outside for discharging high-concentration products, intermediate components or waste liquid after separation or reaction.

[0025] The lower side of the tower body 1 is provided with a horizontal steam inlet 8. The opposite side is provided with a steam outlet 9. The steam inlet 8 and the steam outlet 9 are located at the bottom of the lowermost group of distributors 5 and structured packings 6. High-temperature steam enters the tower body 1 through the steam inlet 8 and contacts with the material treated by the structured packing 6. Then it is discharged from the steam outlet 9, forming a cycle.

[0026] In this embodiment, through the multi-stage distribution of multiple groups of distributors 5 and structured packings 6 and the setting of steam warming, the separation of organic matter in hydrogen peroxide is accelerated, the total organic carbon (TOC) content is reduced, and the purification efficiency and effect are improved.

[0027] In the utility model, preferably, as shown in figure Figure 1 The cooling assembly is installed between the steam inlet 8 and the discharge port 4. The cooling assembly includes a coil pipe 10, a water inlet 11 and a water outlet 12. The coil pipe 10 is located between the steam inlet 8 and the discharge port 4. The water inlet 11 and the water outlet 12 are arranged on one side of the tower body 1 and are respectively connected to both ends of the coil pipe 10. The coil pipe 10 is connected to an external water source through the water inlet 11.

[0028] In the embodiment, through the arrangement of the cooling assembly including the coil pipe 10, the water inlet 11 and the water outlet 12, the cooling can be effectively reduced, the energy consumption is saved, the subsequent process is used conveniently, the contact area with the material can be increased by the spiral coil pipe, and the heat can be continuously taken away by the arrangement of the circulating water.

[0029] In the utility model, preferably, as shown in Figure 1 The water inlet 11 is located below the water outlet 12.

[0030] In the embodiment, through the arrangement that the water inlet 11 is located below the water outlet 12, the cooling water and the material can be realized to be counter-attacked, sufficient contact of both is ensured, and the cooling effect is improved.

[0031] The technical features of the above-described embodiments can be combined arbitrarily, and to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered that the range is recorded in the specification.

[0032] The above-described embodiments only express several implementation manners of the application, the description is more specific and detailed, but it should not be understood as the limitation of the patent application scope. It should be pointed out that, for ordinary skilled in the art, without departing from the concept of the application, a number of modifications and improvements can be made, and these all belong to the protection scope of the application. Therefore, the patent protection scope of the application should be subject to the appended claims.

Claims

1. A purification tower for purifying industrial-grade hydrogen peroxide, comprising a tower body (1), wherein the top of the tower body (1) is provided with an exhaust port (2), a transverse feed inlet (3) is provided on one side of the upper part, and a discharge port (4) is provided at the bottom, characterized in that, The tower body (1) is provided with multiple sets of distributors (5) and structured packing (6) from top to bottom, and a collector (7) is provided between two adjacent sets. The distributor (5) in the uppermost set is connected to the feed inlet (3). The tower body (1) has a horizontal steam inlet (8) on one side of its lower part and a steam outlet (9) on the opposite side. The steam inlet (8) and the steam outlet (9) are both located at the bottom of the lowest set of distributors (5) and structured packing (6).

2. The purification tower for purifying industrial-grade hydrogen peroxide according to claim 1, characterized in that, The tower body (1) is also equipped with a cooling component, which is installed between the steam inlet (8) and the discharge port (4).

3. A purification tower for purifying industrial-grade hydrogen peroxide according to claim 2, characterized in that, The cooling assembly includes a coil (10), a water inlet (11), and a water outlet (12). The coil (10) is located between the steam inlet (8) and the discharge port (4). The water inlet (11) and the water outlet (12) are located on one side of the tower body (1) and are respectively connected to both ends of the coil (10). The coil (10) is connected to an external water source through the water inlet (11).

4. A purification tower for purifying industrial-grade hydrogen peroxide according to claim 3, characterized in that, The inlet (11) is located below the outlet (12).

5. A purification tower for purifying industrial-grade hydrogen peroxide according to any one of claims 1 to 4, characterized in that, The distributor (5) and the structured packing (6) consist of three sets, with the structured packing (6) in the lowest set having a concentrated product outlet that connects to the outside.

6. A purification tower for purifying industrial-grade hydrogen peroxide according to claim 5, characterized in that, The tower body (1) is made of 316L / EP material.

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