Columnar activated carbon with formaldehyde removal function

Abstract

The utility model discloses columnar activated carbon with a formaldehyde removal function, which comprises a placing frame with the bottom horizontally arranged, and an embedding frame is embedded in the top of the placing frame; a plurality of butt-joint columns are fixed at equal intervals in the abdominal positions of the placing frame and the embedding frame, and columnar activated carbon bodies are placed in the butt-joint columns; the interior of the columnar activated carbon body is formed by combining a high-quality coal layer, a coconut shell layer and a wood chip layer, and a plurality of adsorption pores are formed in the columnar activated carbon body. According to the columnar activated carbon with the formaldehyde removal function, the placement frame is arranged, the columnar activated carbon body can be opened through separation between the placement frame and the embedded frame, and formaldehyde can be more effectively removed through chemical adsorption through active functional groups arranged on the surfaces of the columnar activated carbon body and the adsorption pores; the formaldehyde molecules are fixed on the activated carbon and are converted into other harmless substances through chemical reaction.

Description

Technical Field

[0001] The utility model relates to the technical field of activated carbon, in particular to columnar activated carbon with formaldehyde removal function. Background Art

[0002] Pillared activated carbon is a type of activated carbon that has been specially processed into a columnar shape. Its raw materials mainly include high-quality coal, fruit shells (such as coconut shells) or sawdust. These raw materials undergo a complex process of rigorous screening, crushing, sieving, catalyst activation and carbonization at high temperature, resulting in an activated carbon product with a developed pore structure and a large specific surface area.

[0003] Existing columnar activated carbon is usually used in conjunction with carbon bags for auxiliary use, but accumulation often occurs, resulting in a high utilization rate of the external activated carbon and a low utilization rate of the internal activated carbon, resulting in poor activated carbon use effects.

[0004] In order to overcome the above-mentioned defects, reference can be made to a convenient boxed activated carbon disclosed in the prior art (application number CN202223332815.9, Chinese patent publication date 2023-05-09). The activated carbon can spread the activated carbon package flat inside the box, and then press the activated carbon package through the door panel and fix it inside the box. The activated carbon package will not pile up. The activated carbon package is flat, the contact area between the activated carbon and the outside world is large, and the use efficiency is high, which solves the problem that the activated carbon in the activated carbon package is easily piled up, thereby solving the above-mentioned problem.

[0005] However, the existing columnar activated carbon still has certain shortcomings when in use. For example, the absorption of formaldehyde is usually achieved through physical absorption. When the pores of the activated carbon are filled with formaldehyde molecules, its adsorption capacity will gradually weaken. At this time, if the external conditions change (such as temperature increase, pressure decrease, etc.), the formaldehyde molecules may desorb from the activated carbon, resulting in a reversible phenomenon.

[0006] Therefore, we proposed that columnar activated carbon with formaldehyde removal function can solve the above problems well. Utility Model Content

[0007] The purpose of the present utility model is to provide a columnar activated carbon with formaldehyde removal function, so as to solve the problem raised in the above-mentioned background technology that the activated carbon currently on the market usually absorbs formaldehyde through physical absorption. When the pores of the activated carbon are filled with formaldehyde molecules, its adsorption capacity will gradually weaken. At this time, if the external conditions change (such as temperature increase, pressure decrease, etc.), the formaldehyde molecules may desorb from the activated carbon, resulting in a reversible problem.

[0008] To achieve the above object, the present invention provides the following technical solution: a columnar activated carbon with formaldehyde removal function, comprising a placement frame with a horizontal bottom, and an embedding frame embedded in the top of the placement frame;

[0009] The invention also includes: a plurality of docking posts are fixed at equal intervals in the inner positions of the placement frame and the embedding frame, and a columnar activated carbon body is placed inside the docking posts;

[0010] The interior of the columnar activated carbon body is composed of a high-quality coal layer, a coconut shell layer and a sawdust layer, and a plurality of adsorption pores are provided inside the columnar activated carbon body.

[0011] As the preferred technical solution of the present application, the high-quality coal layer, coconut shell layer and sawdust layer arranged inside the columnar activated carbon body are all prepared by crushing and grinding processes, and active functional groups are added to the surface positions of the columnar activated carbon body and the adsorption pores, wherein the active functional groups include not only hydroxyl groups but also carboxyl groups, which can make the columnar activated carbon body have a chemical adsorption effect and avoid the reversal phenomenon of the columnar activated carbon body.

[0012] As the preferred technical solution of the present application, a docking hole is opened through the interior of the columnar activated carbon body, and the outer side of the docking hole is placed on the outer side of the docking column. The setting of the docking hole can facilitate the placement frame to be placed in the internal position of the placement frame and the embedded frame.

[0013] As a preferred technical solution of this application, the length of the docking column is less than half of the internal height of the docking hole, the height of the placement frame and the embedding frame are set to the same, and the height of the columnar activated carbon body is twice the height of the belly of the placement frame, which can facilitate the placement of the columnar activated carbon body into the interior of the docking column.

[0014] As the preferred technical solution of the present application, both sides of the embedded frame are connected with rotating pieces through hinges, and both sides of the placement frame are fixed with fixed seats through bolts. The outer side of the fixed seat is provided with a rotating card, which can facilitate the opening and separation between the placement frame and the embedded frame.

[0015] As a preferred technical solution of the present application, a groove is provided on the lower side of the fixing seat, and the width of the groove is greater than the thickness of the rotating card, so that the locking effect can be achieved by rotating the rotating card.

[0016] As the preferred technical solution of the present application, there is a gap between the two adjacent groups of columnar activated carbon bodies, and there is a gap between the outer side of the edge of the columnar activated carbon body and the placement frame and the embedding frame, so as to avoid the deterioration of the adsorption effect due to the placement of the columnar activated carbon body and the columnar activated carbon body.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the columnar activated carbon with formaldehyde removal function is provided with a placement frame. By separating the placement frame from the embedding frame, the columnar activated carbon body can be opened. Moreover, the active functional groups provided on the surface of the columnar activated carbon body and the adsorption pores can effectively remove formaldehyde through chemical adsorption, because it not only fixes formaldehyde molecules on the activated carbon, but also converts them into other harmless substances through chemical reactions. The specific contents are shown below:

[0018] 1. A placement frame is provided. Several docking posts are fixed at equal intervals on the belly of the placement frame and the embedding frame, which facilitates the placement of the columnar activated carbon body into the interior of the placement frame through the docking holes. The placement frame and the embedding frame can be opened conveniently through the cooperation between the rotating piece and the rotating card, so that the columnar activated carbon body can be used;

[0019] Furthermore, the placement frame and the embedding frame can be turned to face the ground, so that the columnar activated carbon body that has not overlapped and come into contact with the air can be adsorbed and removed for formaldehyde.

[0020] Furthermore, adsorption pores are set up, and the surface positions of the docking column and the adsorption pores are filled with active functional groups. Functional groups such as hydroxyl and carboxyl can react chemically with formaldehyde molecules. The presence of functional groups enables the columnar activated carbon body to not only capture formaldehyde molecules through physical adsorption, but also convert formaldehyde into other harmless or low-toxic substances through chemical reactions.

[0021] 2. A rotating card is provided. By rotating the rotating card on the outer side of the fixed seat, the rotating piece can be engaged and released, which facilitates the opening and closing of the columnar activated carbon body, making it convenient for use at different times. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of the utility model in which the embedding frame and the placement frame are separated;

[0023] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0024] Figure 3 For this utility model Figure 2 A in the middle is an enlarged structural diagram;

[0025] Figure 4 This is a schematic diagram of the main structure of the placement frame of the utility model;

[0026] Figure 5 This is a schematic diagram of the cross-sectional structure of the columnar activated carbon body of the utility model;

[0027] Figure 6This is a schematic diagram of the internal structure of the columnar activated carbon body of the present utility model.

[0028] In the figure: 1. Placement frame; 2. Embedding frame; 3. Rotating piece; 4. Fixed seat; 5. Rotating card; 6. Columnar activated carbon body; 61. High-quality coal layer; 62. Coconut shell layer; 63. Sawdust layer; 7. Docking column; 8. Docking hole; 9. Adsorption pore. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figures 1-6 , the utility model provides the following technical solutions:

[0031] Example 1: To solve the problem that the activated carbon currently on the market usually absorbs formaldehyde through physical absorption, when the pores of the activated carbon are filled with formaldehyde molecules, its adsorption capacity will gradually weaken. At this time, if the external conditions change, such as temperature increase, pressure decrease, etc., the formaldehyde molecules may desorb from the activated carbon, resulting in a reversible problem. Please refer to the attached Figure 1 , Attachment Figure 5 and attached Figure 6The invention comprises a horizontal placement frame 1 with an embedded frame 2 embedded in the top of the placement frame 1; a plurality of docking posts 7 are fixed at equal intervals within the interior of the placement frame 1 and the embedded frame 2, and a columnar activated carbon body 6 is placed within the docking posts 7; the interior of the columnar activated carbon body 6 is composed of a high-quality coal layer 61, a coconut shell layer 62, and a sawdust layer 63, and the interior of the columnar activated carbon body 6 is provided with a plurality of adsorption pores 9. The high-quality coal layer 61, coconut shell layer 62, and sawdust layer 63 provided within the columnar activated carbon body 6 are all prepared through a crushing and grinding process. Active functional groups are added to the surface of the columnar activated carbon body 6 and the adsorption pores 9, wherein the active functional groups include not only hydroxyl groups but also carboxyl groups. Because the interior of the columnar activated carbon body 6 is prepared by combining a high-quality coal layer 61, a coconut shell layer 62, and a sawdust layer 63, and then undergoes a crushing and grinding process, the formed columnar activated carbon body 6 has adsorption pores 9 with a diameter similar to that of formaldehyde molecules, reducing the pore size distribution and increasing the internal surface area of ​​the micropores, thereby improving the physical adsorption efficiency of formaldehyde. Furthermore, the active groups added to the surface of the columnar activated carbon body 6 and the adsorption pores 9, such as hydroxyl and carboxyl groups, are capable of chemically reacting with formaldehyde molecules. The presence of these functional groups enables the activated carbon to not only capture formaldehyde molecules through physical adsorption but also convert formaldehyde into other harmless or low-toxic substances through chemical reactions.

[0032] Example 2: In order to ensure the stable use of the columnar activated carbon body 6, please refer to the attached Figure 1 -Attached Figure 5, a docking hole 8 is provided through the interior of the columnar activated carbon body 6, and the outer side of the docking hole 8 is placed on the outer side of the docking column 7. The length of the docking column 7 is less than half of the inner height of the docking hole 8, the height of the placement frame 1 and the embedding frame 2 are set to the same, and the height of the columnar activated carbon body 6 is twice the height of the belly of the placement frame 1. The two side surfaces of the embedding frame 2 are connected to the rotating pieces 3 by hinges, and the two side surfaces of the placement frame 1 are fixed with a fixing seat 4 by bolts, and a rotating card 5 is provided on the outer side of the fixing seat 4 for rotation. A groove is provided on the lower side of the fixing seat 4, and the width of the groove is greater than the thickness of the rotating card 5. There is a gap between the two adjacent groups of columnar activated carbon bodies 6, and there is a gap between the outer side of the edge of the columnar activated carbon body 6 and the placement frame 1 and the embedding frame 2. When in use, first rotate the rotating card 5 to make the rotating card 5 rotate on the outside of the rotating piece 3, so that the rotating piece 3 can be rotated on the outside of the embedded frame 2, and then the work between the placement frame 1 and the embedded frame 2 can be facilitated. In addition, after the columnar activated carbon body 6 used at the upper end of the placement frame 1 is adsorbed for a period of time, the docking column 7 fixed at the bottom of the embedded frame 2 can be embedded into the docking hole 8 opened inside the columnar activated carbon body 6 through the above operation, and then the bottom of the embedded frame 2 is placed on the ground by closing and inverting, thereby separating the placement frame 1, and then the formaldehyde molecules in the air can be absorbed through the lower end of the docking column 7.

[0033] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A columnar activated carbon having a formaldehyde removal function, comprising a placement frame (1) with a horizontally arranged bottom, and an embedding frame (2) embedded in the top of the placement frame (1); It is characterized in that Also includes: A plurality of docking posts (7) are fixed at equal intervals in the inner portions of the placement frame (1) and the embedding frame (2), and a columnar activated carbon body (6) is placed inside the docking posts (7); The interior of the columnar activated carbon body (6) is composed of a high-quality coal layer (61), a coconut shell layer (62) and a sawdust layer (63), and a plurality of adsorption pores (9) are provided inside the columnar activated carbon body (6).

2. The columnar activated carbon with formaldehyde removal function according to claim 1, characterized in that: The high-quality coal layer (61), coconut shell layer (62) and sawdust layer (63) arranged inside the columnar activated carbon body (6) are all prepared through a crushing and grinding process. Active functional groups are added to the surface positions of the columnar activated carbon body (6) and the adsorption pores (9), wherein the active functional groups include not only hydroxyl groups but also carboxyl groups.

3. The columnar activated carbon with formaldehyde removal function according to claim 1, characterized in that: A docking hole (8) is provided through the interior of the columnar activated carbon body (6), and the outer side of the docking hole (8) is placed on the outer side of the docking column (7).

4. The columnar activated carbon with formaldehyde removal function according to claim 3, characterized in that: The length of the docking column (7) is less than half the internal height of the docking hole (8), the placement frame (1) and the embedding frame (2) are of the same height, and the height of the columnar activated carbon body (6) is twice the height of the belly of the placement frame (1).

5. The columnar activated carbon with formaldehyde removal function according to claim 1, characterized in that: Both sides of the embedded frame (2) are connected to rotating pieces (3) via hinges, and both sides of the placement frame (1) are fixed with fixing seats (4) via bolts, and a rotating card (5) is rotatably provided on the outer side of the fixing seat (4).

6. The columnar activated carbon with formaldehyde removal function according to claim 5, characterized in that: A groove is provided on the lower side of the fixing seat (4), and the width of the groove is greater than the thickness of the rotating card (5).

7. The columnar activated carbon with formaldehyde removal function according to claim 1, characterized in that: There is a gap between two adjacent groups of columnar activated carbon bodies (6), and there are gaps between the outer sides of the edges of the columnar activated carbon bodies (6) and the placement frame (1) and the embedding frame (2).

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