Coating oil spraying device

Abstract

The utility model relates to the technical field of fertilizer processing equipment, in particular to a fertilizer coating oil spraying device which comprises a metal oil conveying pipe, a heating layer, a heat resisting layer and a nozzle, the heating layer covers the outer side of the metal oil conveying pipe; the outer side of the heating layer is coated with the heat resisting layer; the nozzle is connected with one end of a metal oil conveying pipe, and the other end of the metal oil conveying pipe is connected with a container filled with coating oil through oil pumping equipment. According to the coating oil spraying device, due to the fact that the heating layer is arranged on the outer side of the metal oil conveying pipe, coating oil in the metal oil conveying pipe can be heated in the process of conveying the coating oil to fertilizer processing equipment, and the heat insulation layer is arranged on the outer side of the metal oil conveying pipe so that heat exchange between the coating oil and the external environment can be reduced; the coating oil sprayed on the fertilizer particles meets the temperature requirement, and the product quality of the fertilizer particles is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of fertilizer processing equipment, and in particular to a coated oil spraying device. Background Technology

[0002] Fertilizer coating oil is a layer of oil film sprayed onto the surface of fertilizer granules after fertilizer processing. The coating oil serves two purposes: firstly, it forms a smooth surface layer on the fertilizer granules, increasing their cleanliness and appearance; secondly, the oil film layer on the surface of the fertilizer granules allows the fertilizer to be slowly released into the soil, thus providing long-lasting fertility to crops.

[0003] In existing technologies, a heating device is typically used to heat the coating oil to a certain temperature before spraying it onto the fertilizer surface. After heating, the coating oil needs to be transported to the fertilizer processing equipment via pipeline for spraying. During the transportation process, the coating oil is easily affected by the surrounding environment, causing it to cool or heat up, which may result in the coating oil not reaching the required temperature during spraying and thus affecting the coating quality. Utility Model Content

[0004] This invention addresses the technical problem in the prior art where coated oil is easily cooled or heated during oil pipeline transportation due to the influence of the surrounding environment, causing the coated oil to fail to reach the required temperature during spraying and thus affecting the coating quality. The invention provides a coated oil spraying device.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] A coated oil spraying device includes: a metal oil delivery pipe, a heating layer, a heat-insulating layer, and a nozzle; the heating layer covers the outside of the metal oil delivery pipe; the heat-insulating layer covers the outside of the heating layer; the nozzle is connected to one end of the metal oil delivery pipe, and the other end of the metal oil delivery pipe is connected to a container containing coated oil through an oil pumping device.

[0007] Further: The nozzle includes: a nozzle body and a nozzle plate; one end of the nozzle body is provided with a threaded joint, which is screwed and fixed to one end of the metal oil pipe; the nozzle plate is fixedly connected to the other end of the nozzle body; the nozzle plate is provided with a plurality of evenly distributed nozzle holes; the cavity formed between the nozzle plate and the nozzle body is a buffer cavity.

[0008] Furthermore, it also includes: a pressure equalizing plate; the pressure equalizing plate is fixed inside the buffer cavity, and the pressure equalizing plate has multiple through holes; the pressure equalizing plate is arranged parallel to the nozzle plate, and the pressure equalizing plate divides the buffer cavity into two parts.

[0009] Furthermore: the inner wall of the buffer cavity is provided with an annular groove; the pressure equalizing plate is fastened in the annular groove.

[0010] Further: a rubber sealing ring; the rubber sealing ring is disposed at the connection between the threaded joint and the metal oil pipe.

[0011] Furthermore: the heating layer is a uniformly distributed electric heating wire; the heat-insulating layer is an asbestos layer.

[0012] The coating oil spraying device provided by this utility model has at least the following beneficial effects or advantages:

[0013] The coating oil spraying device provided by this utility model has a heating layer covering the outside of a metal oil delivery pipe; a heat-insulating layer covering the outside of the heating layer; a nozzle connected to one end of the metal oil delivery pipe, and the other end of the metal oil delivery pipe connected to a container containing coating oil via an oil pump. Because of the heating layer on the outside of the metal oil delivery pipe, this coating oil spraying device can heat the coating oil inside the metal oil delivery pipe during the process of delivering the coating oil to the fertilizer processing equipment. The heat-insulating layer on the outside of the metal oil delivery pipe reduces heat exchange between the coating oil and the external environment, ensuring that the coating oil sprayed onto the fertilizer granules meets the temperature requirements, thus improving the product quality of the fertilizer granules. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the coating oil spraying device provided in an embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of the nozzle plate structure provided in an embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram of the pressure equalization plate structure provided in an embodiment of the present utility model.

[0017] The attached diagram lists the components represented by each number as follows:

[0018] 1-Metal oil pipeline, 2-Heating layer, 3-Heat insulation layer, 4-Threaded joint, 5-Rubber sealing ring, 6-Pressure equalizing plate, 7-Buffer chamber, 8-Spray plate, 9-Nozzle body. Detailed Implementation

[0019] This invention addresses the technical problem in the prior art where coated oil is easily cooled or heated during oil pipeline transportation due to the influence of the surrounding environment, causing the coated oil to fail to reach the required temperature during spraying and thus affecting the coating quality. The invention provides a coated oil spraying device.

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] See Figure 1 This utility model provides a coated oil spraying device, which mainly includes: a metal oil pipe 1, a heating layer 2, a heat-insulating layer, and a nozzle. The heating layer 2 covers the outside of the metal oil pipe 1, and is made of an electric heating wire. The electric heating wire is evenly wrapped around the outside of the metal oil pipe 1 to heat the coated oil flowing through it. The power and heating time of the electric heating wire can be set to heat the coated oil to the required temperature. The heat-insulating layer covers the outside of the heating layer 2 and is made of heat-insulating asbestos. The heat-insulating layer reduces the degree of heat exchange between the coated oil in the metal oil pipe 1 and the outside environment, keeping the temperature of the coated oil relatively stable. The nozzle is connected to one end of the metal oil pipe 1, and the other end of the metal oil pipe 1 is connected to a container containing the coated oil via an oil pump.

[0022] In a preferred embodiment provided by this utility model, see [link to previous embodiment]. Figure 1 The nozzle includes a nozzle body 9, a nozzle orifice plate 8, and a rubber sealing ring 5. One end of the nozzle body 9 is provided with a threaded connector 4, which is screwed and fixed to one end of a metal oil supply pipe 1. The rubber sealing ring 5 is located at the connection between the threaded connector 4 and the metal oil supply pipe 1 to prevent leakage of the coating oil. The nozzle orifice plate 8 is fixedly connected to the other end of the nozzle body 9. Multiple evenly distributed nozzle holes are formed on the nozzle orifice plate 8. The coating oil enters the nozzle body 9 from the metal oil supply pipe 1 and is sprayed outwards through the nozzle holes on the nozzle orifice plate 8. The chamber formed between the nozzle orifice plate 8 and the nozzle body 9 is a buffer chamber 7, which is used to buffer the coating oil to be sprayed.

[0023] See Figure 1 and Figure 2To further reduce the impact of oil pressure fluctuations within the metal oil pipe 1 on the injection pressure, a preferred embodiment of this invention also includes a pressure equalizing plate 6. The pressure equalizing plate 6 is fixed within the buffer chamber 7 and has multiple through holes. It is arranged parallel to the nozzle plate 8, dividing the buffer chamber 7 into two parts. The working principle of the pressure equalizing plate 6 is as follows: the coating oil enters the nozzle body 9 through the metal pipe and is sprayed onto the fertilizer granules through the nozzle plate 8. When the oil pressure within the metal oil pipe 1 changes (e.g., suddenly increases or decreases), the pressure of the coating oil in the buffer chamber 7 between the pressure equalizing plate 6 and the nozzle plate 8 does not change abruptly due to the counteracting effect of the pressure equalizing plate 6. This maintains a relatively stable pressure for the coating oil sprayed onto the fertilizer granules through the nozzle plate 8, ensuring the effective spraying of the coating oil.

[0024] To facilitate the installation or removal of the equalizing plate 6, and to facilitate the cleaning of the inner cavity of the nozzle body 9 and the equalizing plate 6, in a preferred embodiment of this utility model, an annular groove is provided on the inner wall of the buffer cavity 7; the equalizing plate 6 is snapped into the annular groove. The equalizing plate 6 is made of a thin stainless steel plate structure, and the diameter of the equalizing plate 6 is slightly smaller than the inner diameter of the annular groove and slightly larger than the inner diameter of the buffer cavity 7; when installing or removing the equalizing plate 6, by squeezing the equalizing plate 6, the equalizing plate 6 undergoes a certain degree of deformation until the outer edge of the equalizing plate 6 enters or leaves the annular groove.

[0025] See Figures 1-3 The coating oil spraying device provided in this embodiment of the present invention has at least the following beneficial effects or advantages:

[0026] The coating oil spraying device provided in this embodiment of the invention has a heating layer 2 covering the outside of a metal oil delivery pipe 1; a heat-insulating layer covering the outside of the heating layer 2; a nozzle connected to one end of the metal oil delivery pipe 1, and the other end of the metal oil delivery pipe 1 connected to a container containing coating oil via an oil pump. Because the heating layer 2 is provided on the outside of the metal oil delivery pipe 1, the coating oil in the metal oil delivery pipe 1 can be heated during the process of conveying the coating oil to the fertilizer processing equipment. The heat-insulating layer 3 on the outside of the metal oil delivery pipe 1 reduces heat exchange between the coating oil and the external environment, ensuring that the coating oil sprayed onto the fertilizer granules meets the temperature requirements, thus improving the product quality of the fertilizer granules.

[0027] In the description of this utility model, it should be noted that the terms and nouns in the various embodiments, such as "upper", "lower", "front", "back", "left", and "right", which indicate the location, are only used to simplify the description of the positional relationship based on the accompanying drawings. They do not mean that the components and devices referred to must be operated in accordance with the specific location and limited operation and method or structure in the specification. Such directional terms do not constitute a limitation on this utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model in light of the specific circumstances.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coated oil spraying device, characterized in that: include: The system comprises a metal oil pipeline, a heating layer, a heat-insulating layer, and a nozzle; the heating layer covers the outside of the metal oil pipeline; the heat-insulating layer covers the outside of the heating layer; the nozzle is connected to one end of the metal oil pipeline, and the other end of the metal oil pipeline is connected to a container containing coated oil via an oil pumping device.

2. The coating oil spraying device according to claim 1, characterized in that: The nozzle includes: a nozzle body and a nozzle plate; one end of the nozzle body is provided with a threaded joint, which is screwed and fixed to one end of the metal oil pipe; the nozzle plate is fixedly connected to the other end of the nozzle body; the nozzle plate is provided with a plurality of evenly distributed nozzle holes; the cavity formed between the nozzle plate and the nozzle body is a buffer cavity.

3. The coating oil spraying device according to claim 2, characterized in that: Also includes: A pressure equalizing plate; the pressure equalizing plate is fixed inside the buffer cavity, and the pressure equalizing plate has multiple through holes; the pressure equalizing plate is arranged parallel to the nozzle plate, and the pressure equalizing plate divides the buffer cavity into two parts.

4. The coating oil spraying device according to claim 3, characterized in that: The inner wall of the buffer cavity is provided with an annular groove; the pressure equalizing plate is fastened in the annular groove.

5. The coating oil spraying device according to claim 4, characterized in that: A rubber sealing ring is provided at the connection between the threaded joint and the metal oil pipe.

6. The coating oil spraying device according to any one of claims 1-5, characterized in that: The heating layer is a uniformly distributed electric heating wire; the heat-insulating layer is an asbestos layer.

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