Microorganism filtering device

Abstract

The utility model discloses a microorganism filtering device which comprises a filtering cavity and a filtering plate, the upper part and the lower part of the filtering plate comprise a liquid permeating and circulating layer and a liquid separating layer, and the liquid permeating and circulating layer comprises a plurality of liquid permeating holes positioned at the top, a plurality of liquid dispersing holes positioned in the middle and a plurality of liquid filtering holes positioned at the bottom; the liquid dispersion holes are staggered with the liquid infiltration holes and the liquid filtration holes, a first filter material layer is formed between the liquid infiltration holes and the liquid dispersion holes, a second filter material layer is formed between the liquid dispersion holes and the liquid filtration holes, and a plurality of third filter material layers are formed in the liquid separation layer; a plurality of filtering holes are formed in each third filtering material layer, randomly distributed filtering channels are formed among the filtering holes of the third filtering material layers, and a discharging opening communicated with the filtering cavity is formed in the bottom of the filtering cavity. The filtering device is good in filtering effect.

Description

Technical Field

[0001] The utility model relates to a filtering device, in particular to a microorganism filtering device. Background Art

[0002] Microorganisms include a large group of organisms such as bacteria, viruses, fungi, and some small protozoa and microscopic algae. They are tiny in size and closely related to humans. They cover a wide range of beneficial and harmful types and are widely involved in many fields such as food, medicine, industry and agriculture, environmental protection, and sports. In Chinese textbooks, according to the categories and morphological structures of microorganisms, they are generally classified into bacteria, viruses, and fungi. Some microorganisms can be seen with the naked eye, such as mushrooms, ganoderma lucidum, and shiitake mushrooms belonging to fungi. There are also microorganisms that are a type of "acellular organisms" composed of only a few components such as nucleic acids and proteins.

[0003] During the microbial limit inspection test, the sample test solution needs to be filtered and collected for cultivation. However, the existing filtering devices have poor filtering effects on microorganisms. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a microorganism filtering device.

[0005] The technical solution of the utility model is as follows:

[0006] A microorganism filtering device includes a filtering cavity and a filtering plate. The interior of the filtering cavity is provided with a filtering chamber. The top of the filtering cavity is provided with a feed inlet communicating with the filtering chamber. The filtering plate is arranged on the feed inlet. The upper and lower parts of the filtering plate include a liquid infiltration and circulation layer and a liquid separation layer. The liquid infiltration and circulation layer includes a number of uniformly distributed liquid infiltration holes at the top, a number of uniformly distributed liquid dispersion holes in the middle, and a number of uniformly distributed liquid filtration holes at the bottom. The liquid dispersion holes are staggered with the liquid infiltration holes and the liquid filtration holes. A first filtering material layer is formed between the number of liquid infiltration holes and the number of liquid dispersion holes. A second filtering material layer is formed between the number of liquid dispersion holes and the number of liquid filtration holes. A number of third filtering material layers are formed inside the liquid separation layer. Each third filtering material layer is provided with a number of filtering holes. Randomly distributed filtering channels are formed between the filtering holes of the number of third filtering material layers. The bottom of the filtering cavity is provided with a discharge outlet communicating with the filtering chamber.

[0007] Furthermore, the first filter material layer and the second filter material layer are stainless steel material filter layers or titanium material filter layers. The liquid infiltration and circulation layer is formed by high-temperature sintering of stainless steel powder or titanium powder raw materials after being pressed by a mold. A number of interconnected stainless steel particles or titanium particles are formed inside the first filter material layer and the second filter material layer.

[0008] Furthermore, the pore sizes of the liquid infiltration holes, the liquid dispersion holes, and the liquid filtration holes are 50 - 200 μm.

[0009] Furthermore, the third filter material layer is formed by high-temperature sintering of stainless steel powder or titanium powder raw materials after being pressed by a mold. Each layer of the third filter material layer contains a number of stainless steel particles or titanium particles of different sizes, and a number of filtration holes are formed between the stainless steel particles or titanium particles of each layer of the third filter material layer.

[0010] Furthermore, the pore size of the filtration holes is 10 - 100 μm.

[0011] Furthermore, the filtration channel is a non-vertical multi-style curve.

[0012] Furthermore, the filtration chamber is composed of a funnel and a discharge pipe connected vertically up and down.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model is provided with a filter plate on the filtration cavity. The upper and lower parts of the filter plate include a liquid infiltration and circulation layer and a liquid separation layer. The liquid infiltration and circulation layer includes a number of uniformly distributed liquid infiltration holes at the top, a number of uniformly distributed liquid dispersion holes in the middle, and a number of uniformly distributed liquid filtration holes at the bottom. The liquid dispersion holes are staggered with the liquid infiltration holes and the liquid filtration holes. A first filter material layer is formed between a number of liquid infiltration holes and a number of liquid dispersion holes, and a second filter material layer is formed between a number of liquid dispersion holes and a number of liquid filtration holes. A number of layers of third filter material layers are formed inside the liquid separation layer. Each layer of the third filter material layer is provided with a number of filtration holes, and randomly distributed filtration channels are formed between the filtration holes of the number of layers of the third filter material layers. First, the liquid is collected through the liquid infiltration and circulation layer. When filtering the liquid, the liquid can be quickly dispersed, and larger particles and suspended matters can be preliminarily filtered out. Then, precise filtration is carried out through the liquid separation layer. The number of filtration holes in the liquid separation layer can achieve fine-level filtration. Description of the Drawings

[0014] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 A structural sectional view of a microbial filtration device provided by the present utility model;

[0016] Figure 2 A structural schematic diagram of the filter plate of the present utility model.

[0017] Explanation of the reference numerals in the drawings:

[0018] 1 - Filter cavity 2 - Filter plate

[0019] 3 - Filter chamber 4 - Titanium particles

[0020] 11 - Feed port 12 - Discharge port

[0021] 21 - Circulation layer 22 - Liquid separation layer

[0022] 31 - Funnel 32 - Discharge pipeline

[0023] 211 - Liquid infiltration holes 212 - First filter material layer

[0024] 213 - Liquid dispersion holes 214 - Second filter material layer

[0025] 215 - Liquid filtration holes 221 - Filter holes. Detailed implementation manners

[0026] In order to make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the following further details the present utility model in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0027] In order to illustrate the technical solutions described in the present utility model, the following will be described through specific embodiments.

[0028] Embodiment

[0029] Please refer to Figure 1, this embodiment provides a microbial filtration device, including a filtration cavity 1 and a filter plate 2. Inside the filtration cavity 1, there is a filtration chamber 3, which is composed of a funnel 31 and a discharge pipeline 32 connected vertically. At the top of the filtration cavity 3, there is a feed inlet 11 communicating with the funnel 31. The filter plate 2 is arranged on the feed inlet 11. At the bottom of the filtration cavity 3, there is a discharge outlet 12 communicating with the discharge pipeline 32.

[0030] When it is necessary to filter the separation of microorganisms from diluents or buffers, a filter membrane is placed on the filter plate 2. The staff pours the liquid containing microorganisms onto the filter membrane, and then filters and separates the microorganisms from the diluents or buffers through the filter plate 2. The diluents or buffers are then discharged into the filtration chamber 3, concentrated by the funnel 31 and discharged from the discharge outlet 12 through the discharge pipeline 32. The device has a simple structure and is easy to operate.

[0031] Combined Figure 2 As shown, specifically, the upper and lower parts of the filter plate 2 include a liquid infiltration and circulation layer 21 and a liquid separation layer 22. The liquid infiltration and circulation layer 21 includes a number of uniformly distributed liquid infiltration holes 211 at the top, a number of uniformly distributed liquid dispersion holes 213 in the middle, and a number of uniformly distributed liquid filtration holes 215 at the bottom. The liquid dispersion holes 213 are staggered from the liquid infiltration holes 211 and the liquid filtration holes 215. The pore sizes of the liquid infiltration holes 211, the liquid dispersion holes 213, and the liquid filtration holes 215 are 50 - 200um. Between the number of liquid infiltration holes 211 and the number of liquid dispersion holes 213, there is a first filter material layer 212. Between the number of liquid dispersion holes 213 and the number of liquid filtration holes 215, there is a second filter material layer 214. In this embodiment, the first filter material layer 212 and the second filter material layer 214 are stainless steel material filter layers or titanium material filter layers. The liquid infiltration and circulation layer 21 is formed by pressing stainless steel powder or titanium powder raw materials through a mold and then sintering at high temperature. Inside the first filter material layer 212 and the second filter material layer 214, there are a number of interconnected stainless steel particles or titanium particles 4.

[0032] Specifically, inside the liquid separation layer 22, there are a number of layers of a third filter material layer, which is formed by pressing stainless steel powder or titanium powder raw materials through a mold and then sintering at high temperature. Each layer of the third filter material layer contains a number of stainless steel particles or titanium particles 4 of different sizes. Between the stainless steel particles or titanium particles 4 in each layer of the third filter material layer, there are a number of filter holes 221, and the pore size of the filter holes 221 is 10 - 100um. Between the filter holes 221 of the number of layers of the third filter material layer, there are randomly distributed filter channels, and the filter channels are non - vertical multi - style curves.

[0033] This filter plate has the following characteristics:

[0034] 1) It has a stable shape and is superior to other metal filter materials in terms of impact resistance and alternating load resistance;

[0035] 2) It has good air permeability, low pressure loss, high porosity up to 30%, uniform pore size, and low initial resistance;

[0036] 3) It has excellent mechanical strength and can be used in environments with high temperature, high pressure, and strong corrosion;

[0037] 4) It has a high filtration accuracy, stable pores, can effectively remove suspended solids and particles, etc., and has excellent filtration accuracy;

[0038] 5) There is no particle shedding and it will not cause secondary pollution to the original liquid.

[0039] Its filtration principle is as follows: First, the liquid infiltrates into the circulation layer 21 to collect the liquid. When filtering the liquid, the liquid can be quickly dispersed, and larger particles and suspended solids can be preliminarily filtered out. Then, precise filtration is carried out through the liquid separation layer 22. The several filter holes 221 of the liquid separation layer 22 can achieve fine-level filtration.

[0040] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A microbial filtration device, characterized in that: It includes a filtering cavity and a filter plate. Inside the filtering cavity, there is a filtering chamber. At the top of the filtering cavity, there is a feed inlet communicating with the filtering chamber. The filter plate is arranged on the feed inlet. The filter plate includes a liquid infiltration and circulation layer and a liquid separation layer from top to bottom. The liquid infiltration and circulation layer includes a number of uniformly distributed liquid infiltration holes at the top, a number of uniformly distributed liquid dispersion holes in the middle, and a number of uniformly distributed liquid filtration holes at the bottom. The liquid dispersion holes are staggered with the liquid infiltration holes and the liquid filtration holes. A first filter material layer is formed between the number of liquid infiltration holes and the number of liquid dispersion holes. A second filter material layer is formed between the number of liquid dispersion holes and the number of liquid filtration holes. Inside the liquid separation layer, a number of third filter material layers are formed. Each layer of the third filter material layer is provided with a number of filter holes. Filter channels with random distribution are formed between the filter holes of the number of third filter material layers. At the bottom of the filtering cavity, there is a discharge outlet communicating with the filtering chamber.

2. The microbial filtration device according to claim 1, characterized in that: The first filter material layer and the second filter material layer are stainless steel material filter layers or titanium material filter layers. The liquid infiltration and circulation layer is formed by hot sintering after pressing stainless steel powder or titanium powder raw materials through a mold. Inside the first filter material layer and the second filter material layer, there are a number of interconnected stainless steel particles or titanium particles.

3. The microbial filtration device according to claim 1, wherein: The pore diameters of the liquid infiltration holes, the liquid dispersion holes, and the liquid filtration holes are 50 - 200 um.

4. A microbial filtration device according to claim 1, characterized in that: The third filter material layer is formed by hot sintering after pressing stainless steel powder or titanium powder raw materials through a mold. Each layer of the third filter material layer contains a number of stainless steel particles or titanium particles of different sizes. The number of filter holes is formed between the stainless steel particles or titanium particles of each layer of the third filter material layer.

5. The microbial filtration device according to claim 4, characterized in that: The pore diameter of the filter holes is 10 - 100 um.

6. A microbial filtration device according to claim 1, characterized in that: The filter channels are non - vertical and of diverse curve styles.

7. A microbial filtration device according to claim 1, characterized in that: The filtering chamber is composed of a funnel and a discharge pipeline connected vertically.

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