A Buchner funnel structure for nickel oxide filtration
By designing a Buchner funnel structure with a buffer section, a funnel section, and a discharge section, and with a filter cylinder and filter cotton plate inside, the problem of gaps between the filter paper and the funnel in the traditional Buchner funnel structure is solved, and efficient filtration of nickel oxide solid-liquid mixtures is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING PREFERRED NEW ENERGY TECH CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-30
AI Technical Summary
The traditional Buchner funnel structure has gaps between itself and the sheared filter paper, resulting in poor filtration of nickel oxide solid-liquid mixtures and failing to meet experimental requirements.
A Buchner funnel structure for filtration, comprising a buffer section, a funnel section, and a discharge section, is designed. The internal structure includes a filter cylinder and a filter cotton plate. The lower wall of the filter cylinder has sieve holes. The outer surface of the discharge section is provided with a support seat and a sealing plug. The support seat is correspondingly set to the outer surface of the funnel section. The lower end of the sealing plug is provided with a guide wedge to ensure sealing and connection strength.
This effectively avoids gaps between the filter paper and the funnel, improving the filtration effect of nickel oxide solid-liquid mixtures and meeting experimental requirements.
Smart Images

Figure CN224422092U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filtration equipment technology, specifically to a Buchner funnel structure for filtration of nickel oxide. Background Technology
[0002] Nickel oxide is a black to grayish-green inorganic compound belonging to the transition metal oxide system. It has a cubic crystal structure, is sparingly soluble in water, but soluble in acids to form nickel salts. When heated above 400℃, it can be reduced to metallic nickel by H₂ or CO. In experiments preparing nickel oxide, Buchner funnels are commonly used to filter the solid-liquid mixture. However, traditional Buchner funnels have gaps between the structure and the sheared filter paper, and traditional filter paper cannot meet the filtration requirements of nickel oxide solid-liquid mixtures, resulting in insufficient filtration efficiency for experimental applications. Utility Model Content
[0003] The purpose of this invention is to provide a Buchner funnel structure for filtration of nickel oxide, in order to solve the problems mentioned in the background art, such as the gap between the traditional Buchner funnel structure and the sheared filter paper, and the fact that the traditional filter paper cannot meet the filtration requirements of nickel oxide solid-liquid mixtures, and the filtration effect of nickel oxide solid-liquid mixtures cannot meet the experimental requirements.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a Buchner funnel structure for nickel oxide filtration, comprising a buffer section, a funnel section, and a discharge section, wherein the buffer section, the funnel section, and the discharge section are sequentially connected. A filter cylinder is sleeved inside the buffer section, and the lower wall of the filter cylinder is uniformly provided with sieve holes. A limiting edge is provided on one side of the upper end of the side wall of the filter cylinder, and the limiting edge abuts against the upper edge of the buffer section. A filter cotton plate is provided inside the filter cylinder and above the sieve holes. A support seat is provided on the upper end of the outer surface of the discharge section, and the upper end of the support seat abuts against the outer surface of the funnel section. A sealing plug is provided on the outer surface of the discharge section and at the lower end of the support seat.
[0005] Preferably, both the buffer section and the discharge section are hollow tubular structures, the inner diameter of the buffer section is larger than the inner diameter of the discharge section, the upper inner diameter of the funnel section is the same as that of the buffer section, the lower inner diameter of the funnel section is the same as that of the discharge section, and the wall thickness of the buffer section, the funnel section and the discharge section are the same.
[0006] Preferably, the upper end of the support base is provided with a shape corresponding to the lower end of the funnel section, the sealing plug abuts against the support base, and the lower end of the sealing plug is provided with a guide wedge.
[0007] Preferably, the outer diameter of the filter cotton plate corresponds to the inner diameter of the filter cylinder.
[0008] Preferably, the lower end of the discharge section is provided with a slanted cut.
[0009] Compared with the prior art, the beneficial effects of this utility model are: replacing the traditional Buchner funnel structure, designing a filter cotton plate structure specifically for nickel oxide, avoiding the gaps between the sheared filter paper and the funnel, replacing the traditional filter paper to meet the filtration requirements of nickel oxide solid-liquid mixtures, and the filtration effect of nickel oxide solid-liquid mixtures meets the experimental requirements. Attached Figure Description
[0010] Figure 1 This is an isometric view of the main structure of this utility model;
[0011] Figure 2 This is an isometric sectional view of the main structure of this utility model;
[0012] Figure 3 This is a front sectional view of the main structure of this utility model;
[0013] Figure 4 This is a front view schematic diagram of the main structure of this utility model;
[0014] Figure 5 This is a top view of the main structure of this utility model.
[0015] In the diagram: 1-Buffer section, 2-Function hopper section, 3-Discharge section, 4-Filter cylinder, 5-Sieve hole, 6-Limiting edge, 7-Filter cotton plate, 8-Support seat, 9-Sealing plug, 10-Guide wedge, 11-Beveled cut. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Please see Figure 1-5This utility model provides a Buchner funnel structure for nickel oxide filtration, including a buffer section 1, a funnel section 2, and a discharge section 3. The buffer section 1, the funnel section 2, and the discharge section 3 are connected in sequence. A filter cylinder 4 is sleeved inside the buffer section 1. The lower wall of the filter cylinder 4 is evenly provided with sieve holes 5. A limiting edge 6 is provided on one side of the upper end of the side wall of the filter cylinder 4. The limiting edge 6 abuts against the upper edge of the buffer section 1. A filter cotton plate 7 is provided inside the filter cylinder 4 and above the sieve holes 5. A support seat 8 is provided on the upper end of the outer surface of the discharge section 3. The upper end of the support seat 8 abuts against the outer surface of the funnel section 2. A sealing plug 9 is provided on the outer surface of the discharge section 3 and at the lower end of the support seat 8.
[0018] In use, the buffer section 1, funnel section 2, and discharge section 3 constitute the main structure of the Buchner funnel. A filter cylinder 4 is installed inside the buffer section 1, and the filter cylinder 4 is sleeved with the buffer section 1. The position of the filter cylinder 4 is limited by the abutment of the limiting edge 6 with the buffer section 1. A support seat 8 is installed at the lower end of the discharge section 3, and a sealing plug 9 is installed at the lower end of the support seat 8. The sealing plug 9 seals and connects the main structure of the Buchner funnel, consisting of the buffer section 1, funnel section 2, and discharge section 3, to the suction filtration equipment below. The support seat 8 is set to ensure the connection strength between the sealing plug 9 and the discharge section 3. A filter cotton plate 7 is installed inside the filter cylinder 4. The filter cotton plate 7 is designed for nickel oxide solid-liquid mixtures to ensure the filtration effect of nickel oxide solid-liquid mixtures. The lower wall of the filter cylinder 4 is provided with sieve holes 5 to ensure that the filtered liquid can flow downward through the funnel section 2 and the discharge section 3.
[0019] Both the buffer section 1 and the discharge section 3 are hollow tubular structures. The inner diameter of the buffer section 1 is larger than that of the discharge section 3. The upper inner diameter of the funnel section 2 is the same as that of the buffer section 1, and the lower inner diameter of the funnel section 2 is the same as that of the discharge section 3. The wall thicknesses of the buffer section 1, the funnel section 2, and the discharge section 3 are the same. By designing the main structure of the Buchner funnel composed of the buffer section 1, the funnel section 2, and the discharge section 3, while maintaining the existing technical structure of the Buchner funnel, the structure of the buffer section 1 is designed to ensure smooth connection between the filter cylinder 4 and the buffer section 1.
[0020] The upper end of the support base 8 is correspondingly set to the shape of the lower outer surface of the funnel section 2. The sealing plug 9 abuts against the support base 8. The lower end of the sealing plug 9 is provided with a guide wedge 10 to ensure the firmness of the insertion of the sealing plug 9 and the filter equipment below.
[0021] The outer diameter of the filter cotton plate 7 corresponds to the inner diameter of the filter cylinder 4, which ensures the ease of installation of the filter cotton plate 7 and the filter cylinder 4 while improving the sealing between the filter cotton plate 7 and the filter cylinder 4.
[0022] The lower end of the discharge section 3 is provided with a slanted cut 11 to guide the downward flowing liquid.
[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A structure of a suction filter Buchner funnel for nickel oxide, characterized in that: The device includes a buffer section (1), a funnel section (2), and a discharge section (3), which are connected in sequence. A filter cylinder (4) is fitted inside the buffer section (1). The lower wall of the filter cylinder (4) is evenly provided with sieve holes (5). A limiting edge (6) is provided on one side of the upper end of the side wall of the filter cylinder (4). The limiting edge (6) abuts against the upper edge of the buffer section (1). A filter cotton plate (7) is provided inside the filter cylinder (4) and above the sieve holes (5). A support seat (8) is provided on the upper end of the outer surface of the discharge section (3). The upper end of the support seat (8) abuts against the outer surface of the funnel section (2). A sealing plug (9) is provided on the outer surface of the discharge section (3) and at the lower end of the support seat (8).
2. The filter structure according to claim 1, wherein: Both the buffer section (1) and the discharge section (3) are hollow tubular structures. The inner diameter of the buffer section (1) is larger than that of the discharge section (3). The upper inner diameter of the funnel section (2) is the same as that of the buffer section (1), and the lower inner diameter of the funnel section (2) is the same as that of the discharge section (3). The wall thickness of the buffer section (1), the funnel section (2), and the discharge section (3) is the same.
3. The filter structure according to claim 1, wherein: the filter structure is a filter for nickel oxide. The upper end of the support base (8) is provided with a shape corresponding to the lower end of the funnel section (2), the sealing plug (9) abuts against the support base (8), and the lower end of the sealing plug (9) is provided with a guide wedge (10).
4. The filter structure according to claim 1, wherein: The outer diameter of the filter cotton plate (7) is set to correspond to the inner diameter of the filter cylinder (4).
5. The filter structure according to claim 1, wherein: the filter structure is a filter for nickel oxide. The lower end of the discharge section (3) is provided with a slanted cut (11).