Oxygenation aeration pipe for breeding and preparation method thereof

Abstract

The invention discloses an oxygenation aeration pipe for breeding and a preparation method thereof. The oxygenation aeration pipe comprises the following raw materials in parts by weight: 100 parts of rubber powder A; 2 to 30 parts of rubber powder B; 30 to 80 parts of linear low density polyethylene resin powder; 0.5 to 10 parts of a lubricant; and 0.5 to 10 parts of a foaming antibacterial agent. According to the invention, the aeration pipe which is integrally molded and extruded in the extruder has nano-scale air holes in the surface of the prepared product, so that the oxygenation amount of the aeration pipe can be effectively increased; by adding a proper amount of rubber powder A and rubber powder B, the pipe is good in toughness, capable of rapidly rebounding and long in service life; the outer wall of the aeration pipe is of a fish scale structure during extrusion, sediment and other substances are effectively shielded, air holes are prevented from being blocked, and the service life of the aeration pipe is prolonged; the antibacterial agent introduced into the raw materials of the aeration pipe effectively avoids algae breeding on the surface of the pipe, further avoids the problem of air hole blockage of the aeration pipe, and meanwhile effectively guarantees the healthy environment of aquaculture water.

Description

Technical Field

[0001] The invention relates to the technical field of aeration tubes, and in particular to an oxygen-enhancing aeration tube for aquaculture and a preparation method thereof. Background Art

[0002] Oxygen-enhancing aeration tubes are mainly used for terminal oxygen-enhancing aeration in the field of fish farming, to increase the dissolved oxygen in the aquaculture water, to provide fish with sufficient water oxygen content, and to provide fish with a suitable living and growth environment. However, the nano-aeration tubes currently on the market have problems such as no rebound after twisting, uneven pore sizes, and easy clogging of the product, which leads to low oxygen efficiency and even causes the death of aquaculture species due to lack of oxygen. Farmers need to frequently replace oxygen-enhancing aeration tubes, which brings great economic losses to farmers. In view of this, the present invention provides the following technical solutions. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides an oxygen-enhancing aeration tube for aquaculture, characterized in that: the oxygen-enhancing aeration tube comprises the following raw materials by weight:

[0004] Rubber powder A: 100 parts;

[0005] Rubber powder B: 2-30 parts;

[0006] Linear low-density polyethylene resin powder: 30-80 parts;

[0007] Lubricant: 0.5-10 parts;

[0008] Foaming antibacterial agent: 0.5-10 parts;

[0009] The mesh number of the rubber powder A is 12 to 160 meshes; the mesh number of the rubber powder B is 20 to 120 meshes.

[0010] Preferably, the raw material mass composition of the foaming antibacterial agent is as follows:

[0011] PE resin: 100 parts;

[0012] Non-metallic antibacterial agent: 4-10 parts;

[0013] The non-metallic antibacterial agent is vanillin or ethyl vanillin.

[0014] Preferably, the preparation method of the foaming antibacterial agent is as follows: PE resin and non-metallic antibacterial agent are put into an extruder according to proportion, mixed evenly, and then extruded and granulated into the foaming antibacterial agent.

[0015] Preferably, the oxygenated aeration tube comprises the following raw materials by weight: 100 parts of 20-60 mesh rubber powder A;

[0016] 70-110 mesh rubber powder B: 5-10 parts;

[0017] Linear low-density polyethylene resin powder: 40-60 parts;

[0018] Lubricant: 2-4 parts;

[0019] Foaming antibacterial agent: 1 to 5 parts.

[0020] Preferably, the oxygen-enhancing aeration tube comprises the following raw materials by weight: 100 parts of 60-100 mesh rubber powder A;

[0021] 40-70 mesh rubber powder B: 10-20 parts;

[0022] Linear low-density polyethylene resin powder: 50-70 parts;

[0023] Lubricant: 4-6 parts;

[0024] Foaming antibacterial agent: 3 to 7 parts.

[0025] Preferably, the oxygenated aeration tube comprises the following raw materials by weight: 100 parts of 100-150 mesh rubber powder A;

[0026] 20-60 mesh rubber powder B: 20-30 parts;

[0027] Linear low-density polyethylene resin powder: 55-75 parts;

[0028] Lubricant: 6-9 parts;

[0029] Foaming antibacterial agent: 4 to 9 parts.

[0030] Preferably, the rubber powder A and rubber powder B are one or two of natural rubber, EPDM rubber, butyl rubber, butadiene rubber; the lubricant is one of oxidized polyethylene wax, stearic acid, and silicone lubricant.

[0031] Preferably, the melt flow rate of the linear low-density polyethylene resin is 5 to 20 g / 10 min.

[0032] A method for preparing an oxygen-enhancing aeration pipe for aquaculture, characterized in that it comprises the following steps:

[0033] S1. Stir the raw materials according to the above formula ratio at room temperature for 5-20 minutes, and the resulting mixture is the mixed material;

[0034] S2. Based on S1, the mixed materials are added into the extruder hopper, and the inner wall of the extrusion die is set to a spiral structure, so that when the mixed materials are extruded through the die, an oxygen-enhancing aeration pipe with a fish-scale wall structure is formed;

[0035] S3. Based on S2, after the oxygenated aeration pipe is extruded, the outer wall is firstly watered to cool and shape it, and then it is cut to a fixed length and packaged.

[0036] Preferably, in step S2, the extrusion process of the extruder is: the process temperature of barrel 1-5 zones is 130-150°C; the process temperature of die head main engine 1-2 zones is 140-170°C; the die head speed is 15-30rpm; and the traction speed is 200-400rpm.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] (1) The aeration tube provided by the present invention has nano-scale pores on its surface after extrusion, which can effectively improve the oxygenation capacity of the aeration tube; by adding an appropriate amount of rubber powder A and rubber powder B, the tube has good toughness, can rebound quickly, and has a long service life; the outer wall of the aeration tube presents a fish scale structure during extrusion, which effectively blocks mud and other substances, prevents the pores from being blocked, and improves the service life of the aeration tube; and the antibacterial agent introduced into the raw material of the aeration tube effectively prevents the growth of algae on the surface of the tube, further avoids the problem of pore blockage of the aeration tube, and effectively ensures the healthy environment of the aeration water body. DETAILED DESCRIPTION

[0039] The present invention is further described below in conjunction with specific implementation methods.

[0040] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate positions or positional relationships based on the positions or positional relationships shown, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Example 1

[0043] An oxygen-enhancing aeration pipe for aquaculture, the oxygen-enhancing aeration pipe comprises the following raw materials by weight:

[0044] 20 mesh rubber powder A: 100 parts;

[0045] 120 mesh rubber powder B: 5 parts;

[0046] Linear low density polyethylene resin powder: 35 parts;

[0047] Lubricant: 4 parts;

[0048] Foaming antibacterial agent: 1 part.

[0049] The raw material mass parts of the foaming antibacterial agent are as follows:

[0050] PE resin: 100 parts;

[0051] Non-metallic antibacterial agent: 4 to 10 parts; wherein the non-metallic antibacterial agent is vanillin or ethyl vanillin.

[0052] The preparation method of the foaming antibacterial agent is as follows: PE resin and non-metallic antibacterial agent are put into an extruder according to a proportion, mixed evenly, and then extruded and granulated into the foaming antibacterial agent.

[0053] A method for preparing an oxygen-enhancing aeration pipe for aquaculture comprises the following steps:

[0054] S1. Stir the raw materials according to the above formula ratio at room temperature for 5-20 minutes, and the resulting mixture is the mixed material;

[0055] S2. Based on S1, the mixed materials are added into the extruder hopper, and the inner wall of the extrusion die is set to a spiral structure, so that when the mixed materials are extruded through the die, an oxygen-enhancing aeration pipe with a fish-scale wall structure is formed;

[0056] S3. Based on S2, after the oxygenated aeration pipe is extruded, the outer wall is firstly watered to cool and shape it, and then it is cut to a fixed length and packaged.

[0057] In step S2, the extrusion process of the extruder is as follows: the process temperature of barrel 1-5 zones is 130-150°C; the process temperature of die head main engine 1-2 zones is 140-170°C; the die head speed is 15-30rpm; and the traction speed is 200-400rpm.

[0058] The rubber powder A and rubber powder B are one or two of natural rubber, EPDM rubber, butyl rubber and butadiene rubber; the lubricant is one of oxidized polyethylene wax, stearic acid and silicone lubricant.

[0059] The melt flow rate of the linear low density polyethylene resin is 5 to 20 g / 10 min.

[0060] Among them, the extruder was purchased from the SJ-75 / 28 model equipment sold by Foshan Yibang Machinery Manufacturing Co., Ltd.

[0061] Example 2

[0062] The difference between this embodiment and embodiment 1 is that the weight composition of the raw materials of the oxygen-enhancing aeration tube is different, and other specifications, preparation methods and preparation conditions are consistent with those of embodiment 1.

[0063] The oxygenation aeration tube of this embodiment includes the following raw materials by weight:

[0064] 60 mesh rubber powder A: 100 parts;

[0065] 70 mesh rubber powder B: 5 parts;

[0066] Linear low density polyethylene resin powder: 60 parts;

[0067] Lubricant: 2 parts;

[0068] Foaming antibacterial agent: 3 parts.

[0069] Example 3

[0070] The difference between this embodiment and embodiment 1 is that the weight composition of the raw materials of the oxygen-enhancing aeration tube is different, and other specifications, preparation methods and preparation conditions are consistent with those of embodiment 1.

[0071] The oxygenation aeration tube of this embodiment includes the following raw materials by weight:

[0072] 80 mesh rubber powder A: 100 parts;

[0073] 45 mesh rubber powder B: 15 parts;

[0074] Linear low density polyethylene resin powder: 60 parts;

[0075] Lubricant: 5 parts;

[0076] Foaming antibacterial agent: 6 parts.

[0077] Example 4

[0078] The difference between this embodiment and embodiment 1 is that the weight composition of the raw materials of the oxygen-increasing aeration tube is different, and the other specifications, preparation methods and preparation conditions are the same as those of embodiment 1.

[0079] The oxygenation aeration tube of this embodiment includes the following raw materials by weight:

[0080] 130 mesh rubber powder A: 100 parts;

[0081] 35 mesh rubber powder B: 20 ​​parts;

[0082] Linear low density polyethylene resin powder: 60 parts;

[0083] Lubricant: 6 parts;

[0084] Foaming antibacterial agent: 4 parts.

[0085] Example 5

[0086] The difference between this embodiment and embodiment 1 is that the weight composition of the raw materials of the oxygen-enhancing aeration tube is different, and other specifications, preparation methods and preparation conditions are consistent with those of embodiment 1.

[0087] The oxygenation aeration tube of this embodiment includes the following raw materials by weight:

[0088] 40 mesh rubber powder A: 100 parts;

[0089] 100 mesh rubber powder B: 8 parts;

[0090] Linear low density polyethylene resin powder: 50 parts;

[0091] Lubricant: 3 parts;

[0092] Foaming antibacterial agent: 4 parts.

[0093] Example 6

[0094] The difference between this embodiment and embodiment 1 is that the weight composition of the raw materials of the oxygen-enhancing aeration tube is different, and other specifications, preparation methods and preparation conditions are consistent with those of embodiment 1.

[0095] The oxygenation aeration tube of this embodiment includes the following raw materials by weight:

[0096] 90 mesh rubber powder A: 100 parts;

[0097] 60 mesh rubber powder B: 18 parts;

[0098] Linear low density polyethylene resin powder: 55 parts;

[0099] Lubricant: 6 parts;

[0100] Foaming antibacterial agent: 4 parts.

[0101] Example 7

[0102] The difference between this embodiment and embodiment 1 is that the weight composition of the raw materials of the oxygen-enhancing aeration tube is different, and other specifications, preparation methods and preparation conditions are consistent with those of embodiment 1.

[0103] The oxygenation aeration tube of this embodiment includes the following raw materials by weight:

[0104] 150 mesh rubber powder A: 100 parts;

[0105] 20 mesh rubber powder B: 25 parts;

[0106] Linear low density polyethylene resin powder: 75 parts;

[0107] Lubricant: 9 parts;

[0108] Foaming antibacterial agent: 8 parts

[0109] Comparative Example 1

[0110] The difference between Comparative Example 1 and Example 1 is that the content of rubber powder A in Comparative Example 1 is halved, no foaming antibacterial agent is added, and the rest is the same as Example 1.

[0111] Comparative Example 2 is a product commonly sold on the market.

[0112] The aeration tubes obtained according to the above embodiments and comparative examples were tested for relevant performances, and the test results are compared as shown in Table 1 and Table 2 below:

[0113] Table 1: Oxygenation performance test table

[0114] Inspection items Dissolved oxygen concentration before ventilation mg / L Dissolved oxygen concentration after ventilation mg / L Oxygen increase mg / L Example 1 6.35 7.45 1.1 Example 2 6.43 7.47 1.04 Example 3 6.46 7.44 0.98 Example 4 6.42 7.45 1.03 Example 5 6.32 7.43 1.11 Example 6 6.36 7.42 1.06 Example 7 6.32 7.42 1.1 Comparative Example 1 6.42 7.21 0.79 Comparative Example 2 6.33 6.83 0.5

[0115] Table 2: Other performance test table

[0116]

[0117] As can be seen from Table 1, under normal circumstances, the oxygen increase amount of the aeration pipes prepared by the embodiments of the present invention is very small, and can basically reach an oxygen increase amount of 1.0 mg / L or more, so that the subsequent products can be effectively ventilated when used. When there are obstructions on the surface of the pipe body of Comparative Examples 1 and 2 that hinder aeration, the obstructions cannot be removed after increasing the ventilation pressure of the aeration pipe. However, when such a phenomenon occurs in the aeration pipes of the embodiments of the present invention, the obstructions can be removed by appropriately increasing the pressure, thereby achieving the purpose of improving the air permeability.

[0118] It can be seen from Table 2 that the aeration pipes prepared by the embodiments of the present invention can rebound quickly at room temperature and have high antibacterial performance. The average oxygen increase in a muddy environment can reach about 0.8 mg / L, while the rebound performance of Comparative Examples 1 and 2 is not good, and the anti-clogging performance in a muddy environment is greatly reduced, which is far less than the aeration pipe products prepared by the embodiments, which proves that the amount of rubber powder added in the embodiments of the present invention is better; and in the weather resistance test, when the ambient temperature of Comparative Examples 1 and Comparative Examples 2 reaches below 5°C, the pipe body becomes hard, and when it is below minus 5°C, the pipe body becomes brittle and cracked, making it difficult for the aeration pipe to meet the normal working requirements; while the aeration pipe of this embodiment is still elastic and has no cracking at the above ambient temperature, and can work normally.

[0119] The aeration pipe extruded by the present invention is integrally formed in an extruder, and the surface of the product after preparation has nano-scale pores, which can effectively improve the oxygen increase of the aeration pipe; by adding appropriate amounts of rubber powder A and rubber powder B, the pipe has good toughness, can rebound quickly, and has a long service life; the outer wall of the aeration pipe presents a fish scale structure during extrusion, which effectively blocks mud and other substances, avoids clogging of the pores, and improves the service life of the aeration pipe; and the antibacterial agent introduced into the raw material of the aeration pipe effectively avoids the growth of algae on the surface of the pipe, further avoids the problem of clogging of the pores of the aeration pipe, and effectively ensures the healthy environment of the aquaculture water.

[0120] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of rights of the present invention. Therefore, modifications, equivalent changes, improvements, etc. made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. An oxygen-enhancing aeration pipe for aquaculture, characterized in that: The oxygenated aeration tube comprises the following raw materials by weight: Rubber powder A: 100 parts; Rubber powder B: 2-30 parts; Linear low-density polyethylene resin powder: 30-80 parts; Lubricant: 0.5-10 parts; Foaming antibacterial agent: 0.5-10 parts; The mesh number of the rubber powder A is 12 to 160 meshes; the mesh number of the rubber powder B is 20 to 120 meshes.

2. The oxygen-enhancing aeration pipe for aquaculture according to claim 1, characterized in that: The raw material mass parts of the foaming antibacterial agent are composed as follows: PE resin: 100 parts; Non-metallic antibacterial agent: 4-10 parts; The non-metallic antibacterial agent is vanillin or ethyl vanillin.

3. The oxygen-enhancing aeration pipe for aquaculture according to claim 2, characterized in that: The preparation method of the foaming antibacterial agent is as follows: PE resin and non-metallic antibacterial agent are put into an extruder according to a proportion, and after being evenly mixed, they are extruded and granulated into the foaming antibacterial agent.

4. The oxygen-increasing aeration pipe for aquaculture according to claim 3, characterized in that: The oxygenated aeration tube comprises the following raw materials by weight: 100 parts of 20-60 mesh rubber powder A; 70-110 mesh rubber powder B: 5-10 parts; Linear low-density polyethylene resin powder: 40-60 parts; Lubricant: 2-4 parts; Foaming antibacterial agent: 1 to 5 parts.

5. The oxygen-enhancing aeration pipe for aquaculture according to claim 3, characterized in that: The oxygen-enhancing aeration tube comprises the following raw materials by weight: 100 parts of 60-100 mesh rubber powder A; 40-70 mesh rubber powder B: 10-20 parts; Linear low-density polyethylene resin powder: 50-70 parts; Lubricant: 4-6 parts; Foaming antibacterial agent: 3 to 7 parts.

6. The oxygen-enhancing aeration pipe for aquaculture according to claim 3, characterized in that: The oxygen-enhancing aeration tube comprises the following raw materials by weight: 100 parts of 100-150 mesh rubber powder A; 20-60 mesh rubber powder B: 20-30 parts; Linear low-density polyethylene resin powder: 55-75 parts; Lubricant: 6-9 parts; Foaming antibacterial agent: 4 to 9 parts.

7. An oxygen-enhancing aeration pipe for aquaculture according to claim 4, 5 or 6, characterized in that: The rubber powder A and rubber powder B are one or two of natural rubber, EPDM rubber, butyl rubber and butadiene rubber; the lubricant is one of oxidized polyethylene wax, stearic acid and silicone lubricant.

8. The oxygen-increasing aeration pipe for aquaculture according to claim 7, characterized in that: The melt flow rate of the linear low-density polyethylene resin is 5 to 20 g / 10 min.

9. A method for preparing an oxygen-enhancing aeration tube for aquaculture according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. Stir the raw materials according to the above formula ratio at room temperature for 5-20 minutes, and the resulting mixture is the mixed material; S2. Based on S1, the mixed materials are added into the extruder hopper, and the inner wall of the extrusion die is set to a spiral structure, so that when the mixed materials are extruded through the die, an oxygen-enhancing aeration pipe with a fish-scale wall structure is formed; S3. Based on S2, after the oxygenated aeration pipe is extruded, the outer wall is firstly watered to cool and shape it, and then it is cut to a fixed length and packaged.

10. The method for preparing an oxygen-enhancing aeration pipe for aquaculture according to claim 9, characterized in that: In step S2, the extrusion process of the extruder is as follows: the process temperature of barrel 1-5 zones is 130-150°C; the process temperature of die head main engine 1-2 zones is 140-170°C; the die head speed is 15-30rpm; and the traction speed is 200-400rpm.

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