Biological waste gas treatment filler and production method

Abstract

The application discloses a kind of biological method waste gas treatment fillings and production method in waste gas treatment technical field, including by multiple strand filament line arrangement three-dimensional mesh porous substrate, the surface of substrate has hydrophilicity, substrate is plate-like;Substrate is folded with horizontal direction and is stacked with vertical direction to obtain substrate cylinder, and the outer wall of substrate cylinder is surrounded by several layers of substrate to form columnar body.The application is arranged by multiple strand filament line and is loose three-dimensional mesh porous substrate, the surface of substrate has hydrophilicity, and by internal horizontal direction folding and stacking with vertical direction to obtain substrate cylinder, and substrate cylinder is surrounded by multiple layers of substrate to form columnar body outside, and the surface of substrate has hydrophilicity, can let columnar body inside store more biological flora, let waste gas contact more biological flora, let waste gas treatment be more thorough.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, specifically a biological waste gas treatment packing material and its production method. Background Technology

[0002] Biological waste gas treatment processes have advantages such as high efficiency, low cost, and no secondary pollution. Biofiltration involves passing waste gas through a filter bed filled with microorganisms, utilizing the adsorption and metabolism of these microorganisms to remove pollutants. Microorganisms attach and grow on a solid medium (packing material). The waste gas is adsorbed and absorbed through the fixed bed (packing layer) formed by the medium, and then degraded by the microorganisms into harmless substances.

[0003] Current biological waste gas treatment packing materials have poor hydrophilicity, making it difficult for microbial solutions to adhere to their surface. Ordinary packing materials carry a small amount of microorganisms, which cannot be completely decomposed during the waste gas treatment process, resulting in poor decomposition effects. Summary of the Invention

[0004] The purpose of this invention is to provide a biological waste gas treatment packing material and its production method, in order to solve the problems mentioned above, such as the difficulty in adhering microbial solutions to the surface of the packing material, the small overall amount of microorganisms carried by ordinary packing materials, and the inability to completely decompose them during the waste gas treatment process.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] In a first aspect, the present invention provides a biological waste gas treatment packing material, comprising: a substrate composed of multiple strands of filaments arranged in a three-dimensional porous network, the surface of the substrate being hydrophilic, and the substrate being plate-shaped; the substrate being folded horizontally and stacked vertically to form a substrate column, the outer wall of the substrate column being surrounded by several layers of substrate to form a columnar body.

[0007] As a further aspect of the present invention: multiple cavities are provided on both sides of the substrate, the cavities on both sides of the substrate are staggered, and a biosphere is embedded in the cavity, wherein the biosphere is used to bind multiple strands of filamentous wire.

[0008] When the substrate is folded horizontally and stacked vertically, multiple cavities are misaligned and distributed. The cavities are perpendicular to the horizontal direction and are used to generate gas vortices.

[0009] As a further aspect of the present invention: the biosphere is provided with multiple loose pores, and the biosphere is used to carry the microbial community.

[0010] As a further aspect of the present invention: the cavity is cone-shaped, and the biosphere and the cavity are arranged on the same axis.

[0011] As a further scheme of the present application, the plurality of cavities on the substrate side are equidistantly arranged, and the depths of the plurality of cavities are equal.

[0012] As a further scheme of the present application, the filamentary thread is a polypropylene filamentary thread.

[0013] In a second aspect, the present application provides a method for producing a bio-treatment filler for waste gas, comprising the following steps:

[0014] The plurality of filamentary threads are uniformly stacked and spread on a vibrating conveyor belt, and the vibrating conveyor belt is used to uniformly arrange the plurality of filamentary threads;

[0015] The plurality of filamentary threads arranged uniformly are conveyed to two occluded rollers by the vibrating conveyor belt, wherein the surfaces of the two rollers have concave-convex curved surfaces, and the two rollers shape the plurality of filamentary threads into a three-dimensional meshed porous and plate-shaped substrate;

[0016] The substrate is conveyed to an ionization generator for surface ionization treatment, so that the surface of the substrate has hydrophilicity, and the surface of the substrate is used for adhesion of microorganisms.

[0017] As a further scheme of the present application, the method further comprises:

[0018] The substrate after ionization treatment is conveyed to a first processor, a deflection roller and a second processor, the first processor leads out a plurality of biological spheres, the biological spheres are embedded on the upper end surface of the substrate and form cavities, the deflection roller is used for deflection of the substrate and leads out a plurality of biological spheres by the second processor, the biological spheres are embedded on the lower end surface of the substrate and form cavities.

[0019] As a further scheme of the present application, the first processor and the second processor each comprise a cooler, and the cooler is used for cooling and solidification of the biological spheres.

[0020] Compared with the prior art, the present application has the following beneficial effects:

[0021] 1、In the present application, the plurality of filamentary threads are arranged into a loose three-dimensional meshed porous substrate, the surface of the substrate has hydrophilicity, and the substrate column is obtained by folding in the horizontal direction and stacking in the vertical direction, and the substrate column is surrounded by a plurality of layers of the substrate to form a columnar body, when the filler is placed in a treatment tower, a plurality of columnar bodies are placed vertically in a staggered manner, the substrate in the middle is placed in a staggered manner in the vertical direction, compared with the conventional wound filler, the plurality of columnar body fillers have more and longer paths when the waste gas passes through, so that the waste gas is in contact with the biological flora for a longer time, and the surface of the substrate has hydrophilicity, so that more biological flora can be stored in the columnar body, the waste gas can contact more biological flora, and the waste gas treatment is more thorough, and the use effect is good.

[0022] 2、In the application, when the base material is folded in the horizontal direction and stacked in the vertical direction, the plurality of cavities are distributed in a staggered manner, the cavities are perpendicular to the horizontal direction, and the base material in the folded state can avoid the tensile deformation of the cavities, and the base material in the folded state allows the plurality of cavities in different positions to be placed in a staggered manner, and the cavities are perpendicular to the exhaust gas flow path, so that when the exhaust gas passes through the inside of the columnar body, the resistance of the exhaust gas in the cavities is reduced, the flow rate of the exhaust gas in the local cavities is increased, the exhaust gas with the increased local flow rate and the exhaust gas with the low flow rate in the base material form a speed difference, and then the exhaust gas generates vortex in the cavities, generates more disturbance in the columnar body, and has better contact with the biological flora in the columnar body, so that the exhaust gas and the biological flora are in multi-level contact and the exhaust gas is completely decomposed. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic diagram of the three-dimensional structure of the application;

[0024] Figure 2 is a schematic diagram of the cross-sectional structure of the base material of the application;

[0025] Figure 3 is a schematic diagram of the cross-sectional structure of the columnar body of the application;

[0026] Figure 4 is a flow chart of the production of the base material of the application.

[0027] In the figure: 1, base material; 2, cavity; 3, biological sphere; 4, columnar body; 5, vibrating conveyor belt; 6, roller; 7, ionizer; 8, first processor; 9, second processor; 10, deflection roller; 11, cooler. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0029] Embodiment:

[0030] Please refer to Figures 1-3 In the embodiments of the application, a biological method of waste gas treatment filler comprises: a base material 1 arranged as a three-dimensional meshed porous material by a plurality of silk-like wires, the surface of the base material 1 has hydrophilicity, and the base material 1 is in the form of a plate; the base material 1 is folded in the horizontal direction and stacked in the vertical direction to obtain a base material column, and the outer wall of the base material column surrounds a plurality of layers of base material 1 to form a columnar body 4.

[0031] Specifically, the loose three-dimensional mesh porous substrate 1 is arranged by multiple filamentous lines, the surface of the substrate 1 has hydrophilicity, and the substrate column body is obtained by folding in the horizontal direction and stacking in the vertical direction, and the substrate column body is surrounded by multiple layers of substrate 1 to form a columnar body 4. When the filler is placed in the treatment tower, multiple columnar bodies 4 are placed vertically staggered, and the middle substrate 1 is placed vertically staggered. Compared with the traditional wound filler, the multiple columnar bodies 4 allow the exhaust gas to have more and longer paths when passing through, allowing the exhaust gas to contact the biological flora for a longer time. At the same time, the surface of the substrate 1 has hydrophilicity, which can store more biological flora in the columnar body 4, allowing the exhaust gas to contact more biological flora and allowing the exhaust gas treatment to be more thorough, with good use effect.

[0032] Specifically, the substrate 1 is wound into a columnar body 4 in the form of a whole cylinder, which has certain mechanical strength. When used, the columnar body 4 is placed in the biological filler tower, and the winding density of the columnar body 4 is adjusted according to the air volume and concentration of the exhaust gas. For different working conditions of the exhaust gas source, the winding turns of the substrate are changed to determine the residence time of the exhaust gas in the filler, and the thickness and height of the single substrate are determined to determine the cross-sectional flow velocity of the gas in the filler, so as to meet the removal efficiency of the exhaust gas under different working conditions. For example, the exhaust gas has small air volume and high concentration, and the thickness of the stacked and wound substrate 1 in the columnar body 4 is reduced to allow the small air volume and high concentration exhaust gas to pass through and be fully biologically decomposed. For example, the exhaust gas has large air volume and low concentration, and the thickness of the stacked and wound substrate 1 in the columnar body 4 is increased to allow the large air volume and low concentration exhaust gas to pass through and be fully biologically decomposed. Other exhaust gases are adaptively changed in winding adjustment of the columnar body 4 to ensure that the exhaust gas is fully biologically treated in the filler. In addition, the height of the single substrate 1 can be adjusted to change the path length of the exhaust gas in the filler, further adjust the residence time of the exhaust gas, meet the treatment needs of the exhaust gas under different working conditions, and realize efficient and stable exhaust gas treatment effect.

[0033] The base material 1 is not limited to a cylindrical shape, but can also be a square, triangle or other polygonal shape, to adapt to biological filler towers of different shapes and sizes. These different shapes of base material 1 can also be arranged and stacked in the above manner to form a columnar body 4 with a three-dimensional network porous structure. By adjusting the shape and stacking method of the base material 1, the flow path of the exhaust gas in the filler can be further optimized, the contact efficiency of the exhaust gas with the biological flora is improved, and better exhaust gas treatment effect is achieved. In addition, the columnar body 4 is arranged in the biological filler tower, and a plurality of biological filler towers are arranged in sections and connected to realize multi-section columnar body 4 sectional biological treatment of exhaust gas to meet the treatment requirements of multi-component complex exhaust gas source. The specific form is to stack two or more biological filler towers together, and the gas enters from the side of the first layer of biological filler tower and exits from the middle, and then enters the second layer of biological filler tower, and so on, so that the gas enters from the upper end of the plurality of columnar bodies 4 and is guided through the side of the columnar body 4. Multi-section biological decomposition treatment of the inlet exhaust gas.

[0034] Preferably, as shown in Figure 1 and Figure 2 The two sides of the base material 1 are provided with a plurality of cavities 2, and the cavities 2 on the two sides of the base material 1 are arranged in a staggered manner. The biological spheres 3 are embedded in the cavities 2, wherein the biological spheres 3 are used to bind a plurality of filamentous lines.

[0035] When the base material 1 is folded in the horizontal direction and stacked in the vertical direction, the plurality of cavities 2 are arranged in a staggered manner, and the cavities 2 are perpendicular to the horizontal direction. The cavities 2 are used for generating vortex of gas.

[0036] Specifically, when the base material 1 is folded in the horizontal direction and stacked in the vertical direction, the plurality of cavities 2 are arranged in a staggered manner, and the cavities 2 are perpendicular to the horizontal direction. The base material 1 in the middle folding state can avoid the tensile deformation of the cavities 2, and at the same time, the base material 1 in the folding state allows the cavities 2 at different positions to be arranged in a staggered manner. At the same time, the cavities 2 are perpendicular to the flow path of the exhaust gas, thereby reducing the resistance of the exhaust gas in the cavities 2 when the exhaust gas passes through the inside of the columnar body 4, increasing the flow rate of the exhaust gas in the local cavities 2, and forming a velocity difference between the exhaust gas with a local increased flow rate and the exhaust gas with a lower flow rate in the base material 1. In turn, the exhaust gas generates vortex in the cavities 2, generates more disturbance in the columnar body 4, and has better contact with the biological flora in the columnar body 4. The exhaust gas and the biological flora are in multi-level contact and completely decompose the exhaust gas. The biological spheres 3 embedded in the cavities 2 bind a plurality of filamentous lines through the biological spheres 3, so as to stably maintain the cavities 2 and avoid the collapse of the cavities 2. At the same time, the biological spheres 3 hinder the flow of the exhaust gas, so that the exhaust gas forms a larger swirling vortex with the cavities 2, and the exhaust gas is more completely decomposed.

[0037] Preferably (not shown in the figure), a plurality of loose holes are arranged in the biological spheres 3, and the biological spheres 3 are used to carry the biological flora.

[0038] Specifically, the auxiliary bearing of the biological bacteria group through the loose hole in the biological ball 3 allows the columnar body 4 to bear more biological bacteria groups, and the waste gas decomposition effect is good.

[0039] Preferably, as shown in Figure 2 The hole 2 is a cone, and the biological ball 3 and the hole 2 are arranged on the same axis.

[0040] Specifically, the conical design makes the waste gas flow more smoothly when entering the hole 2, effectively reducing the flow resistance. At the same time, the biological ball 3 is located on the central axis of the hole 2, which ensures that the waste gas can fully contact the biological bacteria group on the surface of the biological ball 3 during the vortex process, improves the efficiency of waste gas decomposition, and the tip part of the conical hole 2 can also produce a certain focusing effect on the waste gas, so that the flow rate of the waste gas is further accelerated when flowing through this area, and the vortex effect is more obvious, further enhancing the contact effect of the waste gas and the biological bacteria group.

[0041] Preferably, as shown in Figure 1 And Figure 2 The plurality of holes 2 on one side of the base material 1 are equidistantly arranged, and the depths of the plurality of holes 2 are equal.

[0042] Specifically, the equidistant and equal-depth hole 2 design on the base material 1 not only makes the waste gas evenly distributed when flowing through the base material 1, improving the uniformity of waste gas treatment, but also ensures that the biological bacteria group in each hole 2 can obtain sufficient waste gas supply, thereby fully exerting its decomposition effect. In addition, the equal-depth hole 2 design is also conducive to the uniform growth and reproduction of the biological bacteria group, further improving the efficiency of waste gas treatment. This design makes the entire waste gas treatment device more stable and reliable in treatment effect.

[0043] Preferably (not shown in the figure), the filament line is a polypropylene filament line. The design of the polypropylene filament line not only effectively prolongs the service life of the filler due to its light weight and strong corrosion resistance, but also has good biocompatibility, which is conducive to the attachment and growth of the biological bacteria group. In addition, the form of the filament line increases the specific surface area of the filler, providing more attachment points for the biological bacteria group, thereby increasing the biomass and further enhancing the treatment capacity of the waste gas. When the waste gas flows through the filler, it can more fully contact the biological bacteria group, improving the efficiency and effect of waste gas decomposition.

[0044] Further, the base columnar body 4 further comprises a waterproof layer. When the columnar body 4 is wound, it is wound into a cylindrical shape by a plurality of layers of base material 1 and a layer of waterproof layer, so that it itself has a certain mechanical strength and supports the vortex-shaped air duct together with the waterproof layer. The waterproof layer can be a corrosion-resistant plastic interlayer to ensure that water vapor passes uniformly along the flow direction;

[0045] The waterproof layer can be made of high-density polyethylene (HDPE) or other corrosion-resistant and wear-resistant synthetic materials, which not only have excellent waterproof performance, but also can effectively resist the corrosion of chemical substances in the exhaust gas, ensuring the stability and durability of the filler structure. At the same time, the selection of these materials also helps to improve the overall strength of the filler, so that it can withstand certain external forces and pressures, maintain the stable form of the vortex-shaped air duct, and further improve the efficiency and reliability of the exhaust gas treatment.

[0046] Specifically, the top of the biological filler tower is provided with a microporous water distribution device. The water pump delivers the circulating liquid at the bottom of the tower to the microporous water supplementing device at the top of the biological filler tower, and uniformly sprays the circulating liquid at the top of the filler. The circulating liquid drips along the filler layer and the waterproof layer to the water tank at the bottom of the biological filler tower. The bottom end of the cylindrical columnar body 4 is immersed in the water tank inside the tower body, so that the gas is concentrated and discharged through the exhaust port.

[0047] Please refer to Figure 4 The present application provides a kind of biological method waste gas treatment filler production method, comprising the following steps:

[0048] A plurality of silk-like lines are uniformly stacked and spread on the vibrating conveyor belt 5, which is used to uniformly arrange the plurality of silk-like lines by vibration;

[0049] The uniformly arranged plurality of silk-like lines are conveyed to the two occlusal rollers 6 by the vibrating conveyor belt 5, wherein the two rollers 6 have concave-convex curved surfaces, and the two rollers 6 shape the plurality of silk-like lines into a three-dimensional meshed porous and plate-shaped base material 1.

[0050] The base material 1 is conveyed into the ionizer 7 for surface ionization treatment, so that the surface of the base material 1 has hydrophilicity, and the surface of the base material 1 is used for the attachment of microorganisms.

[0051] Specifically, the multiple strands of filamentary lines are evenly stacked and spread on the vibrating conveyor belt 5, which is used to evenly arrange the multiple strands of filamentary lines by vibration, ensuring the uniform distribution of the filamentary lines in the subsequent processing, laying the foundation for forming a stable three-dimensional network structure, which is conducive to improving the overall performance and stability of the waste gas treatment filler. The multiple strands of filamentary lines evenly arranged by the vibrating conveyor belt 5 are conveyed to the two engaged rollers 6, wherein the surfaces of the two rollers 6 have concave-convex curved surfaces. The engagement of the two rollers 6 shapes the multiple strands of filamentary lines into a three-dimensional network porous and plate-shaped substrate 1. This three-dimensional network porous structure not only increases the contact area of the waste gas and the biological flora, but also improves the flow efficiency of the waste gas, making the waste gas treatment more efficient. The substrate 1 is conveyed into the ionization generator 7 for surface ionization treatment, so that the surface of the substrate 1 has hydrophilicity. The hydrophilic surface of the substrate 1 is more conducive to the adhesion and growth of microorganisms, thereby accelerating the formation speed of the biofilm and improving the efficiency of the waste gas treatment. The ionization treatment can also enhance the charge distribution on the surface of the substrate 1, which is helpful for the stable adhesion of microorganisms on the surface of the substrate 1, further improving the durability and stability of the waste gas treatment filler.

[0052] Preferably, as shown in Figure 4 the first processor 8 and the second processor 9 each include a cooler 11 for cooling and solidifying the biological spheres 3.

[0053] Specifically, the substrate 1 after ionization treatment is conveyed to the first processor 8, which uniformly discharges multiple biological spheres 3. The biological spheres 3 form multiple cavities 2 on the upper surface of the substrate 1 by gravity. After the upper surface forms cavities 2, the substrate 1 is turned by the turning roller 10, and multiple biological spheres 3 are discharged by the second processor 9 to form staggered cavities 2 on the lower surface opposite the upper surface of the substrate 1. The cavities 2 are generated quickly and simply, and the biological spheres 3 are embedded in the multiple strands of filamentary lines to fix the multiple strands of filamentary lines, thereby maintaining the stability of the cavities 2.

[0054] Further, the biological spheres 3 are thermosetting materials, and the material of the biological spheres 3 includes at least one of phenolic plastic, epoxy resin and amino plastic, or a mixture of at least two of phenolic plastic, epoxy resin and amino plastic.

[0055] Preferably, as shown in Figure 4 the first processor 8 and the second processor 9 each include a cooler 11 for cooling and solidifying the biological spheres 3.

[0056] Specifically, the vibrating conveyor 5 is responsible for conveying the ionized substrate 1 to the first processor 8 and the second processor 9, in which the biological spheres 3 are uniformly guided and embedded into the upper and lower surfaces of the substrate 1 to form the cavities 2. In order to ensure that the biological spheres 3 can be quickly solidified and maintain the shape after being guided, the first processor 8 and the second processor 9 are both equipped with a cooler 11, which functions to cool and solidify the biological spheres 3, so that they can reach a stable form in a short time. This step not only improves the production efficiency, but also ensures the stable embedding of the biological spheres 3 on the substrate 1, providing a solid foundation for the stability of the cavities 2 and the subsequent fixation of the multiple filamentary lines.

[0057] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent replacements or changes to the technical solutions and the inventive concept of the present application within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A bio-process off-gas treatment packing, characterized in that, Comprising: a substrate arranged as a three-dimensional mesh of strands, the surface of the substrate having hydrophilic properties, the substrate being plate-shaped; the substrate is folded in a horizontal direction and stacked in a vertical direction to obtain a substrate column, the outer wall of the substrate column surrounding several layers of the substrate to form a columnar body.

2. The biological waste gas treatment packing according to claim 1, characterized in that: Both sides of the substrate are provided with a plurality of cavities, the cavities on both sides of the substrate are arranged in a staggered manner, and the cavities are embedded with biological spheres, wherein the biological spheres are used to bind the plurality of strands; When the substrate is folded in a horizontal direction and stacked in a vertical direction, the plurality of cavities are distributed in a staggered manner, the cavities are perpendicular to the horizontal direction, and the cavities are used to generate gas vortex.

3. The biological waste gas treatment packing according to claim 2, characterised in that: The biological spheres are provided with a plurality of loose holes, and the biological spheres are used to carry biological flora.

4. The biological waste gas treatment packing according to claim 3, characterised in that: The cavities are conical, and the biological spheres and cavities are arranged on the same axis.

5. The biological waste gas treatment packing according to claim 4, characterised in that: The plurality of cavities on one side of the substrate are arranged at equal intervals, and the depths of the plurality of cavities are equal.

6. The biological waste gas treatment packing according to claim 1, characterized in that: The strands are polypropylene strands.

7. A method for the production of a bio-technological waste gas treatment packing, using the bio-technological waste gas treatment packing according to any one of claims 1 to 6, characterized in that: Comprising the following steps: Uniformly stack and spread a plurality of strands on a vibrating conveyor belt, the vibrating conveyor belt being used to uniformly arrange the plurality of strands by vibration; transport the uniformly arranged plurality of strands to two occluded rollers by the vibrating conveyor belt, wherein the two rollers have concave-convex curved surfaces, and the two rollers shape the plurality of strands into a three-dimensional mesh of porous and plate-shaped substrate; transport the substrate into an ionization generator for surface ionization treatment to make the surface of the substrate have hydrophilic properties, and the surface of the substrate is used for microbial adhesion.

8. The method for producing a bio-method exhaust gas treatment packing according to claim 7, characterized by: Further comprising: transport the substrate after ionization treatment to a first processor, a deflection roller, and a second processor, the first processor leading a plurality of biological spheres, the biological spheres being embedded on the upper end surface of the substrate and forming cavities, the deflection roller being used for substrate deflection and leading a plurality of biological spheres by the second processor, the biological spheres being embedded on the lower end surface of the substrate and forming cavities.

9. The method for producing a bio-method exhaust gas treatment packing according to claim 8, characterized in that: The first processor and the second processor each include a cooler for cooling and solidifying the biological spheres.

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