Rock wool for sewage treatment

Abstract

The utility model discloses a kind of rock wool for sewage treatment, improve the quantity of biofilm formation.A kind of rock wool for sewage treatment, including frame and multiple groups of fixed rod being set on frame, fixed rod includes upper cross bar and lower cross bar, upper cross bar is set on the upper portion of frame, upper cross bar has multiple and sequentially arranged in the upper portion of frame, lower cross bar is set on the lower portion of frame, lower cross bar has multiple and sequentially arranged in the lower portion of frame, the upper end of rock wool felt strip is connected with upper bar cross, the lower end of rock wool felt strip is connected with lower cross bar, the bulk density of rock wool felt strip is 30-40kg / m 3 , the length of rock wool fiber of the rock wool felt strip is 8-10cm, sewing thread is provided on the rock wool felt strip, and the interval of sewing thread is 5cm.

Description

Technical Field

[0001] This utility model belongs to the technical field of rock wool, specifically relating to a type of rock wool used for sewage treatment. Background Technology

[0002] Rock wool is widely known as an insulation material. Due to its very high porosity, rock wool has been preliminarily studied in the field of wastewater treatment. For example, Chinese utility model patent CN220334939U, published on January 12, 2024, discloses a type of rock wool for biofilm purification in wastewater treatment, comprising a rock wool block with a through hole in the middle. The rock wool block is made of hydrophilic rock wool fiber material, and a hollow ball cage is provided on the outer side of the rock wool block. The hollow ball cage includes two hemispherical cages, which are separate structures connected together to accommodate the rock wool block.

[0003] However, when this type of rock wool is used for wastewater treatment with biofilm formation, the amount of biofilm formed is small. Utility Model Content

[0004] The purpose of this invention is to provide a rock wool for sewage treatment that increases the biofilm formation rate.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A type of rock wool for wastewater treatment includes a frame and multiple sets of fixing rods mounted on the frame. Each fixing rod includes upper and lower crossbars. Multiple upper crossbars are located on the upper part of the frame and arranged sequentially on the upper part of the frame. Multiple lower crossbars are located on the lower part of the frame and arranged sequentially on the lower part of the frame. The upper end of a rock wool strip is connected to one of the upper crossbars, and the lower end of the rock wool strip is connected to one of the lower crossbars. The density of the rock wool strip is 30-40 kg / m³. 3 The rock wool fibers in the rock wool felt strip are 8-10cm long, and the rock wool felt strip is provided with seams with a seam spacing of 5cm.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: each set of fixed rods is provided with multiple rock wool felt strips, and the rock wool felt strips are arranged at intervals.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the rock wool felt strip is further covered with a mesh bag.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: a rock wool felt strip is provided inside the mesh bag.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: both the upper and lower crossbars pass through the mesh of the net bag, the net bags are spaced apart by tubes, and both the upper and lower crossbars are provided with tubes.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the lower end of the rock wool felt strip is provided with an installation pipe.

[0011] The outstanding and beneficial technical effects of this utility model compared to the prior art are: The rock wool of this invention for wastewater treatment adopts the structure of rock wool felt with a water-to-air ratio of approximately 1:0.55, which ensures that the dissolved oxygen concentration meets the needs of aerobic microorganisms. To a certain extent, biofilm can also form inside the rock wool felt strips. Therefore, this structure can increase the amount of biofilm formation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the unfolded structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the structure of the rock wool felt strip of this utility model.

[0014] In the diagram, 1 is the frame; 2 is the fixing rod; 3 is the upper crossbar; 4 is the lower crossbar; 5 is the stitching; 6 is the tube body; 7 is the installation tube; and 8 is the rock wool felt strip. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the given embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0017] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0018] This utility model discloses a rock wool for sewage treatment, including a frame 1 and multiple sets of fixing rods 2 disposed on the frame 1. The fixing rods 2 are rod-shaped structures used to hang rock wool strips 8 inside the frame 1. For simplicity of view, only one set of fixing rods 2 is equipped with rock wool strips 8. In practical application, the frame 1 is placed inside a biological treatment tank.

[0019] As shown in the figure, the fixing rod 2 includes an upper crossbar 3 and a lower crossbar 4. The upper crossbar 3 is set on the upper part of the frame 1, and there are multiple upper crossbars 3 arranged sequentially on the upper part of the frame 1. The lower crossbar 4 is set on the lower part of the frame 1, and there are multiple lower crossbars 4 arranged sequentially on the lower part of the frame 1.

[0020] In this embodiment, the upper end of the rock wool felt strip 8 is connected to the upper horizontal bar, and the lower end of the rock wool felt strip 8 is connected to the lower horizontal bar 4. The density of the rock wool felt strip 8 is 40 kg / m³. 3 The rock wool fibers in the rock wool strip 8 are 8-10 cm long. This invention, used for wastewater treatment, employs a rock wool strip 8 structure. Because the rock wool strip 8 has relatively large gaps between the rock wool fibers, the water-to-air ratio of the hydrophilic rock wool strip 8 is approximately 1:0.55, ensuring that the dissolved oxygen concentration meets the needs of aerobic microorganisms. To a certain extent, a biofilm can also form inside the rock wool strip 8. Therefore, this structure increases the biofilm formation. In this embodiment, the width of the rock wool strip 8, i.e., along the length of the fixing rod 2, is 18-20 cm, and its thickness is 5 cm.

[0021] It should be noted that in other embodiments, the rock wool strip 8 may also use other density values, such as 30 kg / m³. 3 .

[0022] In this embodiment, the rock wool felt strip 8 is provided with seams 5, and the seams 5 are spaced 5cm apart. The structure of the seams 5 makes the rock wool felt have good tensile strength and prevents the rock wool felt from disintegrating due to the shear force of water over a long period of time; in addition, since the spacing of the seams 5 is smaller than the length of the rock wool fibers, the rock wool felt strip 8 has better stability.

[0023] The rock wool for wastewater treatment in this invention adopts the structure of rock wool felt strips 8, which can ensure the dissolved oxygen concentration inside, thus increasing the amount of biofilm attached.

[0024] In this embodiment, each set of fixed rods 2 is provided with multiple rock wool felt strips 8, and the rock wool felt strips 8 are arranged at intervals. As shown in the figure, there are multiple rock wool felt strips 8 on the same set of upper crossbars 3 and lower crossbars 4, so that a sufficient amount of biofilm can participate in the purification of sewage.

[0025] In this embodiment, the rock wool strip 8 is also covered by a mesh bag. Typically, one rock wool strip 8 is placed inside the mesh bag. The mesh bag structure further enhances the strength of the rock wool strip 8. In this embodiment, both the upper crossbar 3 and the lower crossbar 4 pass through the mesh of the mesh bag, thus allowing the rock wool strip 8 to be connected to the upper crossbar 3 and the lower crossbar 4 via the mesh bag, further ensuring the reliability of the connection between the rock wool strip 8 and the frame 1. The mesh bags are spaced apart by tubes 6. As shown in the figure, both the upper crossbar 3 and the lower crossbar 4 are equipped with tubes 6. In this embodiment, the structure of the tubes 6 allows for spacing between the rock wool strips 8. This ensures that the rock wool strips 8 have an appropriate density in the biological tank, while also allowing multiple surfaces of the rock wool strips 8 to be subjected to hydraulic scouring, promoting the shedding of old membranes and maintaining a balance between metabolic activity and mass transfer efficiency.

[0026] In this invention, both the lower end and the lower end of the rock wool felt strip 8 are provided with mounting tubes 7. The mounting tube 7 is a tubular structure, with its inner diameter slightly larger than the outer diameter of the upper crossbar 3 and the lower crossbar 4. In application, the rock wool felt strip 8 is installed on the upper crossbar 3 and the lower crossbar 4 via the mounting tubes 7. The structure of the mounting tube 7 facilitates its installation on the upper crossbar 3 and the lower crossbar 4. In this embodiment, the rock wool felt strip 8 has two layers, and the mounting tube 7 is disposed between the two layers of rock wool felt strip 8.

[0027] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A type of rock wool for wastewater treatment, comprising a frame and multiple sets of fixing rods disposed on the frame, characterized in that: The fixing rods include upper and lower crossbars. Multiple upper crossbars are located on the upper part of the frame and arranged sequentially on the upper part of the frame. Multiple lower crossbars are located on the lower part of the frame and arranged sequentially on the lower part of the frame. The upper end of a rock wool felt strip is connected to the upper crossbar, and the lower end of the rock wool felt strip is connected to the lower crossbar. The density of the rock wool felt strip is 30-40 kg / m³. 3 The rock wool fibers in the rock wool felt strip are 8-10cm long, and the rock wool felt strip is provided with seams with a seam spacing of 5cm.

2. The rock wool for wastewater treatment according to claim 1, characterized in that: Each set of fixed rods is provided with multiple rock wool felt strips, and the rock wool felt strips are arranged at intervals.

3. The rock wool for wastewater treatment according to claim 2, characterized in that: The rock wool felt strip is also covered with a mesh bag.

4. The rock wool for wastewater treatment according to claim 3, characterized in that: A rock wool felt strip is installed inside the mesh bag.

5. The rock wool for wastewater treatment according to claim 4, characterized in that: Both the upper and lower crossbars pass through the mesh of the mesh bag, and the mesh bags are spaced apart by tubes. Both the upper and lower crossbars are equipped with tubes.

6. The rock wool for wastewater treatment according to claim 1, characterized in that: The rock wool felt strip is equipped with an installation tube at both the lower end and the lower end.

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