CN216890361U - Filter for generating biomass charcoal clean water body by utilizing micro-plastic mediated straw pyrolysis - Google Patents

Abstract

The utility model discloses a filter for generating biomass charcoal clean water by utilizing micro-plastic mediated straw pyrolysis, which comprises a pressurizing device and a filtering tank, wherein the pressurizing device is connected with the filtering tank; the pressurizing device is arranged at the top end of the filter tank and is in sealing connection with the filter tank; the pressurizing device is used for pressurizing the water sample in the filtering tank and accelerating the filtering speed of the water sample; a filter sieve and an adsorption bag are arranged in the filter tank. The pressurizing device comprises a top cover connected with the filter tank; the top cover is provided with a piston cylinder, and a piston is arranged in the piston cylinder; the lower end of the piston cylinder is communicated with the filter tank. The filter screens include a first filter screen and a second filter screen. The filter for generating the biomass charcoal clean water body by utilizing the micro-plastic mediated straw pyrolysis has the advantages of high filtering efficiency, convenience in replacing the filter sieve and the adsorption bag, good environmental protection performance and the like.

Description

Using microplastics to mediate the pyrolysis of straw to generate biomass charcoal to clean water filters

technical field

The utility model relates to a water filtration device, in particular to a filter that utilizes microplastics to mediate the pyrolysis of straw to generate biomass charcoal to clean water bodies.

Background technique

Heavy metals refer to metals with a density greater than 4.5g/cm3, including gold, silver, copper, iron, mercury, lead, cadmium, etc. The accumulation of heavy metals in the human body reaches a certain level, which can cause chronic poisoning. Heavy metal pollution refers to the environmental pollution caused by heavy metals or their compounds, mainly caused by human factors such as mining, waste gas discharge, sewage irrigation and the use of heavy metal products. Due to human activities, the content of heavy metals in the environment increases beyond the normal range and leads to deterioration of environmental quality.

Heavy metals are highly toxic and cause irreversible health hazards to the human body. In particular, mercury, cadmium, lead, and chromium have significant biological toxicity. They cannot be degraded by microorganisms in water, but can only undergo various forms of mutual transformation and dispersion and enrichment (ie, migration).

Before the factory removes heavy metal polluted wastewater, the heavy metal pollutants in the water body must be removed to reduce the amount of heavy metals contained in the water environment. There are many methods for removing heavy metals in water: chemical precipitation method, porous material adsorption method, adsorption material filter plate filtration method, etc.

The currently used sewage treatment plants generally use adsorption materials to adsorb heavy metal ions and phenolic substances. Such existing devices require periodic maintenance of the adsorbent material. However, the general adsorption material is fixed inside the adsorption kettle, and it is very inconvenient to replace the adsorption material, which makes the maintenance work more complicated, and increases the workload and labor intensity of the staff. In addition, in the prior art, there is also a problem that the sedimentation speed of the water sample is slow, which reduces the efficiency of sewage treatment.

Utility model content

In order to avoid the above-mentioned deficiencies in the prior art, the utility model provides a filter that utilizes microplastics to mediate the pyrolysis of straw to generate biomass charcoal to clean water bodies, so as to improve maintenance efficiency and increase the sedimentation speed of water samples. .

The utility model adopts the following technical solutions to solve the technical problems.

A filter for cleaning water by using microplastics to mediate pyrolysis of straw to generate biomass charcoal, including a pressurizing device 1 and a filter tank 2; the pressurizing device 1 is arranged on the top of the filter tank 2; the pressurizing device 1 Sealed connection with the filter tank 2;

The pressurizing device 1 is used to pressurize the water sample in the filter tank 2 to speed up the filtration rate of the water sample;

The filter tank 2 is provided with a filter screen and an adsorption bag 4 .

Preferably, the pressurizing device 1 includes a top cover 101 for connecting with the filter tank; the top cover 101 is provided with a piston cylinder 102, and a piston 103 is provided in the piston cylinder 102; the piston The lower end of the cylinder 102 communicates with the filter tank 2 .

The structural characteristics of a filter of the present utility model that utilizes microplastics to mediate the pyrolysis of straw to generate biomass charcoal to clean water bodies are also as follows:

Preferably, the filter screen includes a first filter screen 301 and a second filter screen 302 .

Preferably, the filter tank is a first tank body 201, a second tank body 202 and a third tank body 203 in order from top to bottom; the first filter screen 301 is located inside the first tank body 201; the The adsorption bag 4 is located in the second tank body 202 , and the second filter screen 302 is located in the third tank body 203 .

Preferably, the first tank 201 and the second tank 202 are in a sealed connection, and the second tank 202 and the third tank 203 are in a sealed connection.

Preferably, the sealing connection between the first tank body 201 and the second tank body 202 is a threaded connection.

Preferably, the sealing connection between the second tank body 202 and the third tank body 203 is a threaded connection.

Preferably, the mesh sizes of the first filter screen 301 and the second filter screen 302 are both 0.45 μm.

Preferably, the mesh sizes of the first filter screen 301 and the second filter screen 302 are both 0.22 μm.

Preferably, the first filter screen 301 and the second filter screen 302 are respectively fixed in the first tank body 201 and the third tank body 203 by screws.

Compared with the prior art, the beneficial effects of the present utility model are embodied in:

The utility model discloses a filter that utilizes microplastics to mediate the pyrolysis of straw to generate biomass charcoal to clean water. The filter comprises a pressurizing device and a filter tank; The filter tanks are sealed and connected; the pressurizing device is used to pressurize the water sample in the filter tank to speed up the filtration speed of the water sample; the filter tank is provided with a filter screen and an adsorption bag. The pressurizing device includes a top cover for connecting with the filter tank; the top cover is provided with a piston cylinder, and a piston is provided in the piston cylinder; the lower end of the piston cylinder is connected to the filter tank. connected between. The filter screen includes a first filter screen and a second filter screen.

1. By setting up a special pressurizing device, external force can be applied when the water body is filtered slowly to improve the filtering efficiency.

2. Divide the tank body of the filter tank into three parts that can be disassembled from each other, so that the filter screen and the adsorption bag can be easily taken out, and the replacement of the filter screen and the adsorption bag is very convenient.

3. The adsorbent is a biomass charcoal prepared by calcining two kinds of agricultural wastes, microplastics and straw powder, in a certain proportion. The adsorption bag can reuse the two most common wastes in agriculture, not only has high filtration efficiency, but also the raw materials used in the preparation are easily available, economical and the process is clean.

The filter of the utility model, which utilizes microplastics to mediate straw pyrolysis to generate biomass charcoal to clean water, has the advantages of high filtration efficiency, convenient replacement of filter screens and adsorption bags, and good environmental protection performance.

Description of drawings

FIG. 1 is a schematic structural diagram of the filter tank of the utility model, which utilizes microplastics to mediate the pyrolysis of straw to generate biomass charcoal for cleaning water bodies.

FIG. 2 is a schematic structural diagram of a pressurizing device for a filter of the present invention, which utilizes microplastics to mediate pyrolysis of straw to generate biomass charcoal to clean water bodies.

The present utility model will be further described below through specific embodiments and in conjunction with the accompanying drawings.

Detailed ways

Referring to Fig. 1-Fig. 2, the filter of the present invention, which utilizes microplastics to mediate the pyrolysis of straw to generate biomass charcoal to clean water, comprises a pressurizing device 1 and a filter tank 2; the pressurizing device 1 is arranged in the filter The top of the tank 2; the sealing connection between the pressurizing device 1 and the filter tank 2;

The pressurizing device 1 is used to pressurize the water sample in the filter tank 2 to speed up the filtration rate of the water sample;

The filter tank 2 is provided with a filter screen and an adsorption bag 4 .

Preferably, the pressurizing device 1 includes a top cover 101 for connecting with the filter tank; the top cover 101 is provided with a piston cylinder 102, and a piston 103 is provided in the piston cylinder 102; the piston The lower end of the cylinder 102 communicates with the filter tank 2 .

When the staff finds that the filtration rate of the water sample in the filter is slow, when the water sample is not easy to settle, the air in the filter tank can be compressed by pressing down the piston of the pressurizing device, and the filtration rate can be increased by applying external force from the top. Increase the speed of filtering.

Preferably, the filter screen includes a first filter screen 301 and a second filter screen 302 .

Preferably, the filter tank is a first tank body 201, a second tank body 202 and a third tank body 203 in order from top to bottom; the first filter screen 301 is located inside the first tank body 201; the The adsorption bag 4 is located in the second tank body 202 , and the second filter screen 302 is located in the third tank body 203 .

Preferably, the first tank 201 and the second tank 202 are in a sealed connection, and the second tank 202 and the third tank 203 are in a sealed connection.

Preferably, the sealing connection between the first tank body 201 and the second tank body 202 is a threaded connection.

Preferably, the sealing connection between the second tank body 202 and the third tank body 203 is a threaded connection.

Preferably, the mesh sizes of the first filter screen 301 and the second filter screen 302 are both 0.45 μm.

Preferably, the mesh sizes of the first filter screen 301 and the second filter screen 302 are both 0.22 μm.

Preferably, the first filter screen 301 and the second filter screen 302 are respectively fixed in the first tank body 201 and the third tank body 203 by screws.

In the filter of the present invention that uses microplastics to mediate the pyrolysis of straw to generate biomass charcoal to clean water, the water sample containing heavy metals is added into the filter tank from the water inlet 2011 on the first tank body 201 . The water inlet needs to be sealed with a sealing cap when pressurized. Considering the pressurized sealing problem, the water inlet can also be omitted, and the water sample can be poured directly from the top opening of the filter tank. First, the suspended matter in the water sample is filtered through the first filter screen, and the filtered water sample enters the second tank, and is filtered by the adsorption bag for the second time. The water sample filtered by the adsorption bag enters the third tank, and is filtered for the third time by the second filter screen.

The third tank also serves as a collector for collecting the cleaner water after three filtrations. The third tank body is provided with a water outlet (not shown in the figure), which is used for exporting the cleaner water after three filtrations.

The two filter screens and the filter tank are fixed by screws, and the filter screen can be easily removed for cleaning, and then fixed in the filter tank again after cleaning.

The first tank body and the second tank body are threadedly connected, and the second tank body and the third tank body are threadedly connected, so the three tank bodies can be disassembled in sequence to facilitate the removal of the filter screen and the adsorption bag.

The mesh size of the filter screen has different specifications such as 0.45μm and 0.22μm. The size of the first filter screen and the second filter screen are the same. The first and second sieves are the same size, either all 0.45 μm. Either all are 0.22μm, and the sieves that meet the standard size of water sample detection can be replaced at any time, so there are two sets of filter sieves, one set of 0.45μm (the first filter sieve and the second filter sieve), and one set of 0.22μm (the first filter sieve). sieve and a second filter sieve), one set of which is used as a spare.

A biomass charcoal adsorbent is arranged in the adsorption bag. The adsorbent is a biomass charcoal prepared by calcining two kinds of agricultural wastes, microplastics and straw powder, in a certain proportion. Biochar is produced by doping microplastics and straw powder in a ratio of 1:4 at a final pyrolysis temperature of 400 °C. Mix the microplastics and straw powder in a crucible according to a preset ratio, and calcine them in a muffle furnace. Select a final pyrolysis temperature of 400 °C, a pyrolysis rate of 5 °C/min, and continue the final temperature for 3 hours. material charcoal. Put the biochar in the packaging bag to make the adsorption bag. The adsorption bag of the utility model can reuse the two most common wastes in agriculture, and not only has high filtering efficiency, but also the raw materials for preparation and use are easy to obtain, economical and clean in process.

Biochar generated by microplastics mediates thermal decomposition of straw powder, which has a good adsorption effect on heavy metals in water.

The water sample is injected from above and firstly passes through the first filter screen to remove large particles such as suspended solids, and then the water body enters the second tank with the adsorbent package to remove certain heavy metals, and then passes through the third tank in the third tank. Two filter sieves, and finally the clean water flows out.

The biomass charcoal adsorbent in the adsorption bag is powdery particles, which will be put into a small cloth bag first to make an adsorption bag similar to a tea bag, and then the adsorption bag will be packaged into the second tank.

The two filter sieves are regularly removed and cleaned, and the adsorption bag is also regularly tested and replaced with biomass charcoal.

In specific implementation, the screen size of the selected filter screen is divided into 0.45μm, 0.22μm, etc., only one size of screen is placed at a time, and the screen grid of the standard size for water sample detection can be replaced at any time.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes within the meaning and range of the required equivalents are embraced within the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (10)

1. A filter for using microplastics to mediate the pyrolysis of straw to generate biomass charcoal to clean water, characterized in that it comprises a pressurizing device (1) and a filter tank (2); the pressurizing device (1) is arranged in the the top of the filter tank (2); the pressurizing device (1) and the filter tank (2) are tightly connected; The pressurizing device (1) is used to pressurize the water sample in the filter tank (2) to speed up the filtration rate of the water sample; A filter screen and an adsorption bag (4) are arranged in the filter tank (2). 2 . The filter for cleaning water bodies by utilizing microplastics to mediate pyrolysis of straw to generate biomass charcoal according to claim 1 , wherein the pressurizing device (1) comprises a top for connecting with the filter tank. 3 . A cover (101); a piston cylinder (102) is arranged on the top cover (101), and a piston (103) is arranged in the piston cylinder (102); the lower end of the piston cylinder (102) is connected to the filter The tanks (2) communicate with each other. 3. The filter for cleaning water body by using microplastics to mediate the pyrolysis of straw to generate biomass charcoal according to claim 1, wherein the filter screen comprises a first filter screen (301) and a second filter screen (302) ). 4. The filter of claim 3, wherein the filter tank is a first tank body (201), a second tank body (201) and a second tank body in order from top to bottom. A tank (202) and a third tank (203); the first filter screen (301) is located in the first tank (201); the adsorption bag (4) is located in the second tank Inside (202), the second filter screen (302) is inside the third tank (203). 5 . The filter for cleaning water by using microplastics to mediate the pyrolysis of straw to generate biomass charcoal according to claim 4 , wherein the first tank ( 201 ) and the second tank ( 202 ) There is a sealed connection therebetween, and the second tank body (202) and the third tank body (203) are sealed connection. 6. The filter for cleaning water by using microplastics to mediate pyrolysis of straw to generate biomass charcoal to clean water, characterized in that the first tank (201) and the second tank (202) The sealing connection between them is a threaded connection. 7. The filter for cleaning water by using microplastics to mediate the pyrolysis of straw to generate biomass charcoal, wherein the second tank (202) and the third tank (203) The sealed connection is a threaded connection. 8 . The filter for cleaning water by using microplastics to mediate the pyrolysis of straw to generate biomass charcoal according to claim 3 , wherein the sieves of the first filter screen (301) and the second filter screen (302) are The mesh size was all 0.45 μm. 9 . The filter for cleaning water bodies by using microplastics to mediate the pyrolysis of straw to generate biomass charcoal according to claim 3 , wherein the sieves of the first filter screen (301) and the second filter screen (302) are The mesh size is all 0.22 μm. 10. The filter of claim 4, wherein the first filter screen (301) and the second filter screen (302) are separated by screws. ) are respectively fixed in the first tank body (201) and the third tank body (203).

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