CN218078452U - A double-hole fan-shaped nozzle suitable for coal preparation and de-intermediation - Google Patents

Abstract

The utility model provides a double-hole fan-shaped nozzle suitable for coal preparation and deintermediation, which includes a base, a hexagon and a column from top to bottom; the inner channel of the base, the hexagon and the column constitutes a water inlet channel, and the water inlet channel From top to bottom, it includes the first channel section, the second channel section and the nozzle pipes distributed obliquely and symmetrically on both sides of the central axis of the nozzle; The hemispherical grooves at the bottom are intersected to form a long and narrow oval spout. The first channel section is arranged in an inverted cone shape, and the side wall of the first channel section forms a corner of 84-88 degrees with the top of the second channel section. The second channel section is arranged in a cylindrical shape. The nozzle is cylindrical and forms an angle of 25-30 degrees with the axis. Through structural improvement, the utility model has the advantages of simple structure, low production cost, long service life and strong impact force, and solves the problems of small flow coefficient, poor cleaning ability and weak penetration of thick coal seams in the existing nozzles.

Description

A double-hole fan-shaped nozzle suitable for coal preparation and de-intermediation

technical field

The utility model relates to the technical field of design nozzles, more specifically, it designs a double-hole fan-shaped nozzle for coal preparation and deintermediation.

Background technique

The nozzle is designed according to its working conditions. As a key component of the water jet, its effect directly affects the cleaning effect. Therefore, it is necessary to select a suitable nozzle in different application scenarios in order to achieve the best spray performance in use.

Nozzles are divided into cylindrical nozzles, fan nozzles and special-shaped nozzles according to their shapes. Compared with other types of nozzles, fan-shaped nozzles have the advantages of greater impact force and uniform spraying. Under the action, the sprayed liquid has a strong impact force, and the dirt can be quickly cleaned under its action. The nozzles currently used in coal preparation plants are mostly wide-angle fan nozzles, flat fan nozzles, and duckbill fan nozzles. In the process of use, there are problems such as small nozzle flow coefficient, poor cleaning ability, and weak penetration of thick coal seams.

In view of this, the existing problems are studied and improved, and a double-hole fan-shaped nozzle is provided, aiming at solving the problems and improving the use value through this technology.

Utility model content

The purpose of the utility model is to provide a double-hole fan-shaped nozzle to solve the problems existing in the existing nozzle proposed in the technical background.

In order to achieve the above purpose, the utility model provides a double-hole fan-shaped nozzle for coal preparation and deintermediation, which is achieved by the following specific technical means:

A double-hole fan-shaped nozzle for coal preparation and deintermediation, which includes a base, a hexagon and a cylinder from top to bottom; the inner channel of the base, hexagon and cylinder constitutes a water inlet channel, and the water inlet channel includes a first nozzle from top to bottom. The channel section, the second channel section and the nozzle pipes which are obliquely and symmetrically distributed on both sides of the central axis of the nozzle; the bottom of the column is provided with a V-shaped groove symmetrical to the central axis of the nozzle, intersecting with the hemispherical groove arranged at the bottom end of the nozzle , forming a long and narrow oval spout.

As a further illustration of the above solution, the first channel section is set in an inverted tapered shape, and the side wall of the first channel section and the top end of the second channel section form an angle of 84-88 degrees.

As a further illustration of the above solution, the second channel section is arranged in a cylindrical shape.

As a further illustration of the above solution, the nozzles are cylindrical, obliquely and symmetrically distributed on both sides of the central axis of the nozzle, and form an included angle of 25-30 degrees with the axis.

As a further illustration of the above solution, the base and the hexagon are of an integral structure.

Due to the application of the above-mentioned technical solution, the utility model has the following advantages compared with the prior art:

The utility model arranges a tapered flow channel in the first channel section of the nozzle, so that the flow channel is evenly and gently narrowed. This design makes the jet flow accelerate at the inlet section, so when it reaches the outlet, the speed is the largest and the water flow is improved. The impact strength of the nozzle can reduce the uneven spray caused by the unstable water pressure, make the distribution of the liquid mist more refined and uniform, and increase the stability of the nozzle when spraying; and the area in the low-speed state at the corner is very small, and the energy loss rare.

The utility model arranges spray pipes distributed symmetrically at a certain angle inside the nozzle. Because of its own structural characteristics, the fan surface has a large opening angle, the impact force of the water flow is greater, and the spray surface is more uniform, so as to achieve better cleaning effect.

Through the improvement of the existing device, the utility model has the advantages of convenient connection, fast flow rate and good spraying effect, thereby effectively solving the problems and deficiencies in the existing device.

Description of drawings

The accompanying drawings constituting a part of this application are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute an improper limitation of the utility model. In the attached picture:

Fig. 1 is a front view sectional structure schematic diagram of the utility model.

Fig. 2 is a schematic diagram of a side sectional structure of the utility model.

Fig. 3 is a top view structural diagram of the utility model.

Fig. 4 is a structural schematic diagram of the utility model.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

It should be noted that, in the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more; the terms "upper", "lower", "left", "right", " The orientation or positional relationship indicated by "inner", "outer", front end", "back end", "head", "tail", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the utility model. and simplified descriptions, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

At the same time, in the description of the present utility model, unless otherwise specified and limited, the terms "connected" and "connected" 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 mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Please refer to Fig. 1 to Fig. 4, the utility model provides a specific technical implementation scheme of a double-hole fan-shaped nozzle:

A double-hole fan-shaped nozzle for coal preparation and de-intermediation, which includes a base 2, a hexagon 3 and a cylinder 1 from top to bottom; the inner passages of the base 2, hexagon 3 and cylinder 1 form a water inlet channel 4, and the water inlet channel 4 From top to bottom, it includes the first channel section 5, the second channel section 6, and the nozzle pipes 7 distributed obliquely and symmetrically on both sides of the central axis of the nozzle; the bottom of the cylinder 1 is provided with a V-shaped groove 8 symmetrical to the central axis of the nozzle , intersects with the hemispherical groove 9 arranged at the bottom of the nozzle 7 to form a long and narrow oval nozzle.

Specifically, the first channel section 5 is arranged in an inverted tapered shape, and the side wall of the first channel section 5 and the top end of the second channel section 6 form an angle of 84-88 degrees. The tapered flow channel makes the flow channel narrow evenly and gently. This design makes the jet flow accelerate at the inlet section, so when it reaches the outlet, the speed is the highest, which improves the impact of the water flow and reduces the water pressure caused by unstable factors. The uneven spray makes the distribution of the liquid mist more refined and uniform, which increases the stability of the nozzle when spraying; and the area in the low-speed state at the corner is very small, and the energy loss is very small.

Specifically, the second channel section 6 is configured in a cylindrical shape to provide guidance for water flow.

Specifically, the nozzle pipes 7 are obliquely and symmetrically distributed on both sides of the central axis of the nozzle, and form an angle of 25-30 degrees with the axis. This structure makes the opening angle of the fan surface larger, the impact force of the water flow is greater, the spray surface is more uniform, and a better cleaning effect is achieved.

Specifically, the V-shaped groove 8 is symmetrical with respect to the central axis of the nozzle, and intersects with the inner hemispherical groove 9 to form a narrow and long oval nozzle, making the edge of the spray shape clearer.

Specifically, the hemispherical grooves 9 are arranged at the bottom end of the nozzle and distributed symmetrically with respect to the center line of the nozzle 7 . The hemispherical groove 9 provides a guiding function for the sprayed water flow, and cooperates with the V-shaped groove 8 to form a fan-shaped spray angle of 80-120 degrees, which increases the spray coverage and improves the use effect of the nozzle.

Specific implementation steps:

When using this device, the base 2 is connected to the water pipe by threaded connection, and the side wall of the first channel section 5 and the top of the second channel section 6 form an angle of 84-88 degrees, so that the flow channel narrows evenly and gently , this design allows the jet to accelerate at the inlet section, so when it reaches the outlet, the speed is the highest, which increases the impact of the water flow, reduces the uneven spray caused by unstable water pressure, and makes the distribution of the liquid mist more refined and more uniform. , which increases the stability of the nozzle when spraying; and the area of the low-speed state at the corner is very small, and the energy loss is very small. The nozzle 7 is inclined and symmetrically distributed on both sides of the central axis of the nozzle, and is 25-30 degrees from the axis. angle. This structure makes the fan surface expand at a larger angle, the impact of water flow is greater, the spray surface is more uniform, and better cleaning effect is achieved. The V-shaped groove 8 is symmetrical about the central axis of the nozzle, and intersects with the inner hemispherical groove 9 to form a long and narrow ellipse. The shape of the nozzle makes the edge of the spray shape clearer. When it is necessary to check or replace the nozzle, the operator holds the hexagon 3 of the nozzle device with his hand and rotates it counterclockwise, so that the thread of the base 2 is separated from the thread structure in the water pipe clockwise. After the disassembly is completed, carry out Replacement of new nozzles, the operation process is relatively simple, time-saving and labor-saving.

To sum up: this kind of double-hole fan-shaped nozzle for coal preparation and deintermediation, through the water inlet channel of the conical channel section, a throttling corner is formed on the inner wall of the water inlet channel, so that the flow channel changes evenly and gently. Narrow, this design allows the jet to continue to accelerate at the entrance, so when it reaches the exit, the speed is the highest, which increases the impact of the water flow, reduces the uneven spray caused by unstable water pressure, and makes the liquid mist distribution more refined and more precise. Uniformity, which increases the stability of nozzle spraying; and the area in the low-speed state at the corner is very small, and the energy loss is very small; by setting two nozzles distributed symmetrically with respect to the central axis of the nozzle, the fan surface has a large expansion angle and the water flow The impact force is greater, the spray surface is more uniform, and better cleaning effect is achieved.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (4)

1. A double-hole fan-shaped nozzle suitable for coal dressing and medium removal is characterized by comprising a base (2), a hexagon (3) and a cylinder (1) from top to bottom; the base (2), the hexagon (3) and the inner channel of the cylinder (1) form a water inlet channel (4), and the water inlet channel (4) comprises a first channel section (5), a second channel section (6) and spray pipes (7) which are obliquely and symmetrically distributed on two sides of the central axis of the spray head from top to bottom; the bottom of the cylinder (1) is provided with V-shaped grooves (8) which are symmetrical about the central axis of the nozzle and penetrate through a hemispherical groove (9) arranged at the bottom end of the spray pipe (7) to form a long and narrow elliptic spray nozzle; the first channel section (5) is arranged in an inverted cone shape, and the side wall of the first channel section (5) and the top end of the second channel section (6) form a corner of 84-88 degrees.

2. The dual-hole fan nozzle suitable for coal preparation and media removal of claim 1, wherein: the second channel section (6) is arranged in a cylindrical shape.

3. The dual-hole fan nozzle suitable for coal preparation and media removal of claim 1, wherein: the spray pipe (7) is cylindrical and forms an included angle of 25-30 degrees with the central axis of the spray nozzle.

4. The dual-hole fan nozzle suitable for coal preparation and media removal of claim 1, wherein: the base (2) and the hexagon body (3) are of an integrated structure.

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