A nozzle having a double-swirl structure

Abstract

This utility model relates to the field of spray granulation, specifically a nozzle with a dual-swirling structure, including a slurry separator, dual-swirling vanes, a nozzle orifice, a shell, and a base. The slurry separator, dual-swirling vanes, and nozzle orifice are all installed inside the shell. The middle part of the slurry separator is fixedly connected to the shell. The slurry separator has a flow channel and an outlet channel inside. The dual-swirling vanes cover the top opening of the slurry separator, and their surfaces are provided with swirl grooves. The nozzle orifice is installed above the dual-swirling vanes, and its center has a nozzle orifice adapted to the swirl grooves. The base has a channel inside, and the shell is installed on top of the base, with the channel connected to the shell. The edges of the shell are tapered, and the center of the shell has a nozzle orifice. The advantages of this product are as follows: anti-accumulation and low waste powder; integrated swirling design; modular connection.

Description

Technical Field

[0001] This utility model relates to the field of spray granulation, specifically a nozzle with a dual swirl structure. Background Technology

[0002] Spray granulation is a common process in industrial production. Its basic principle is to break up raw material droplets through high-pressure airflow or mechanical force, and then condense them into solid particles in the air.

[0003] In spray granulation, the nozzle structure directly affects the atomization effect and particle uniformity of the slurry. Traditional nozzle structures have the following drawbacks: 1. Complex structure: The multi-part split design is prone to assembly errors, affecting the swirling effect; 2. Material accumulation: An unreasonable nozzle orifice design leads to slurry residue, increasing the waste powder rate; 3. Uneven spraying: The separate design of the swirling components is prone to causing fluid disturbance, reducing powder quality. Utility Model Content

[0004] To achieve the above objectives, the present invention aims to provide a nozzle with a dual-swirl structure, which improves granulation performance by optimizing component connections and fluid channel design, thereby solving the problems existing in the background art. The present invention provides the following technical solution:

[0005] A nozzle with a dual-swirling structure includes a slurry distributor, dual-swirling vanes, a nozzle orifice, a shell, and a base. The slurry distributor, dual-swirling vanes, and nozzle orifice are all installed within the shell. The middle part of the slurry distributor is fixedly connected to the shell. The slurry distributor has a flow-dividing groove and an outlet channel inside, forming a preliminary slurry diversion channel. The dual-swirling vanes cover the top opening of the slurry distributor, and their surfaces are provided with swirl grooves. The nozzle orifice is installed above the dual-swirling vanes, and its center has a nozzle orifice adapted to the swirl grooves. The base has an internal channel, and the shell is installed on top of the base, with the channel connecting to the shell. The edges of the shell are tapered, and the center of the shell has a nozzle orifice. After being diverted by the slurry distributor, the slurry forms a flow field through the swirl grooves of the dual-swirling vanes. The slurry is accelerated by the nozzle orifice and then ejected from the nozzle orifice. The dual-swirling vanes are an integrated component of the cover plate and the swirl vanes, reducing assembly error rate, improving swirling efficiency, resulting in uniform spray granulation, and improving powder quality.

[0006] As a further embodiment of this utility model: a connector is provided in the middle of the slurry body, and the slurry body is fixedly connected to the outer shell through the connector, which can be quickly connected, has good connection firmness, and is not easy to loosen.

[0007] As a further embodiment of this utility model: the top of the slurry separator is provided with an installation platform for positioning the double swirl vanes. The double swirl vanes are embedded in the installation platform, which makes installation convenient and quick, and provides good installation stability, thus avoiding installation errors of the old-style swirl vanes.

[0008] As a further embodiment of this invention, the mounting platform is ring-shaped, which makes operation simple.

[0009] As a further aspect of this invention, the shrinkage structure is conical, which can reduce the frictional resistance between the fluid and the wall surface, thereby reducing slurry residue.

[0010] As a further embodiment of this invention: the nozzle orifice is a bowl-shaped flared structure, which optimizes the diffusion angle of the spray, makes the spray diffuse in a laminar flow, reduces the waste powder rate, and reduces material accumulation.

[0011] As a further embodiment of this utility model: a connecting part is provided on the outer shell, and the outer shell is connected to the base through the connecting part. Furthermore, the connecting part and the base are connected by a threaded connection, which shortens the maintenance time and improves work efficiency.

[0012] As a further embodiment of this utility model: the bottom of the base is provided with threads, and the base is connected to the spray gun rod of the feeding system through the threads, which facilitates disassembly and assembly.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Prevents accumulation and reduces waste powder: The conical shrinkage structure of the outer shell can reduce slurry residue, and the bowl-shaped nozzle makes the spray spread in a laminar flow, reducing the waste powder rate.

[0015] 2. Integrated swirl design: The dual swirl vanes adopt an integrated structure of cover plate and swirl vanes, which reduces the assembly error rate, improves swirl efficiency, ensures uniform spray granulation, improves powder quality, and increases the product yield.

[0016] 3. Modular connection: The slurry body and the outer shell are quickly connected through the connecting part, and the outer shell is threaded to the base, which shortens the maintenance time and improves work efficiency. Attached Figure Description

[0017] Figure 1 This is an exploded view of a nozzle with a dual swirling structure in an embodiment of this utility model.

[0018] Figure 2 This is a cross-sectional view of a nozzle with a dual swirling structure in an embodiment of this utility model.

[0019] Figure 3 This is an external schematic diagram of a nozzle with a dual swirling structure in an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the slurry distribution body of the nozzle with a double swirl structure in an embodiment of this utility model.

[0021] In the figure: 1-slurry distribution body; 11-connector; 12-mounting platform; 13-diversion channel; 14-slurry outlet channel; 2-double swirl vane; 21-swirl channel; 3-spray vane; 31-spray hole; 4-outer shell; 41-shrinkage structure; 42-nozzle opening; 43-connection part; 5-base; 51-thread. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] The specific implementation of this utility model will be described in detail below with reference to specific embodiments. Example

[0024] See Figures 1-4 A nozzle with a double swirl structure includes a slurry separator 1, a double swirl vane 2, a nozzle orifice 3, a housing 4, and a base 5. The slurry separator 1, the double swirl vane 2, and the nozzle orifice 3 are all installed inside the housing 4. The middle part of the slurry separator 1 is fixedly connected to the housing 4. The slurry separator 1 has a flow channel 13 and a slurry outlet channel 14 inside, forming a preliminary slurry flow channel. The double swirl vane 2 covers the top opening of the slurry separator 1, and the surface of the double swirl vane 2 is provided with a swirl groove 21. The nozzle orifice 3 is installed above the double swirl vane 2, and the center of the nozzle orifice 3 is provided with a nozzle orifice 31 that matches the swirl groove 21. The base 5 has a channel inside, and the housing 4 is installed on the upper part of the base 5, and the channel of the base 5 is connected to the housing 4. The edges on both sides of the housing 4 are constriction structures 41, and the center of the housing 4 is provided with a nozzle orifice 42. After being diverted by the slurry separator 1, the slurry forms a flow field through the swirl channel 21 of the double swirl vane 2. The slurry is accelerated by the nozzle plate 3 and then sprayed out from the nozzle 42. The double swirl vane 2 is an integrated component of the cover plate and the swirl vane, which reduces the assembly error rate, improves the swirl efficiency, ensures uniform spray granulation, and improves the quality of the powder.

[0025] In one embodiment of this utility model, a connector 11 is provided in the middle of the slurry body 1. The slurry body 1 is fixedly connected to the outer shell 4 through the connector 11, which can be quickly connected, has good connection firmness, and is not easy to loosen.

[0026] In one embodiment of this utility model, the top of the slurry separator 1 is provided with a mounting platform 12 for positioning the double swirl vanes 2. The double swirl vanes 2 are embedded in the mounting platform 12, which makes installation convenient and quick, and provides good installation stability, thus avoiding installation errors of the old-style swirl vanes.

[0027] In one embodiment of this utility model, the mounting platform 12 is annular in shape, which is easy to operate, and the swirl channel 21 is spiral in shape, which can form a spiral flow field, enhance the atomization effect, and further improve the product qualification rate and quality.

[0028] In one embodiment of this utility model, the shrinkage structure 41 is conical, which can reduce the frictional resistance between the fluid and the wall, thereby reducing the residue of the slurry.

[0029] In one embodiment of this utility model, the nozzle orifice 42 is a bowl-shaped flared structure, which optimizes the diffusion angle of the spray, makes the spray diffuse in a laminar flow, reduces the waste powder rate, and reduces material accumulation.

[0030] In one embodiment of this utility model, a connecting part 43 is provided on the outer shell 4, and the outer shell 4 is connected to the base 5 through the connecting part 43. Furthermore, the connecting part 43 and the base 5 are connected by a threaded connection, which shortens the maintenance time and improves the work efficiency.

[0031] In one embodiment of this utility model, the bottom of the base 5 is provided with a thread 51, and the base 5 is connected to the spray gun rod of the feeding system through the thread 51, which facilitates disassembly and assembly.

[0032] It should be noted that, in this utility model, unless otherwise explicitly specified and limited, the terms "fixed," "set," etc., should be interpreted broadly. For example, they can refer to welded connections, bolted connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A nozzle with a dual-swirling structure, comprising a slurry distributor, dual-swirling vanes, a nozzle orifice, a housing, and a base, wherein the slurry distributor, dual-swirling vanes, and nozzle orifice are all installed within the housing, and the middle portion of the slurry distributor is fixedly connected to the housing, characterized in that, The slurry separator has a flow channel and a discharge channel inside. The top opening of the slurry separator is covered by a double swirl vane, and the surface of the double swirl vane is provided with a swirl channel. The nozzle is installed above the double swirl vane, and the center of the nozzle is provided with a nozzle that matches the swirl channel. The base has a channel inside, and the outer shell is installed on the upper part of the base, and the channel of the base is connected to the outer shell. The edges of the outer shell are tapered, and the center of the outer shell is provided with a nozzle.

2. The nozzle with a dual-swirl structure according to claim 1, characterized in that, The top of the slurry body is provided with a mounting platform for positioning the double swirl vanes, and the double swirl vanes are embedded in the mounting platform.

3. The nozzle with a dual-swirl structure according to claim 2, characterized in that, The mounting platform is ring-shaped.

4. The nozzle with a dual-swirl structure according to claim 1, characterized in that, The contraction structure is conical.

5. The nozzle with a dual-swirl structure according to claim 1 or 4, characterized in that, The nozzle orifice has a bowl-shaped flared structure.

6. The nozzle with a dual-swirl structure according to claim 1, characterized in that, The outer shell is provided with a connecting part, and the outer shell is connected to the base through the connecting part.

7. The nozzle with a dual-swirl structure according to claim 6, characterized in that, The connecting part is connected to the base by a threaded connection.

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