Water-gas mixing gap type and hole type combined jet device

Abstract

The utility model discloses a water-gas mixing gap type and hole type combined jet device which comprises a water flow input port, a gas input end and an injection head, a water body transmission pipe is arranged in a gas transmission pipe, the rear end of the water body transmission pipe is connected with the water flow input port, a gas transmission pipe is installed at the rear end of the gas transmission pipe, and the water flow input port is connected with the gas transmission pipe. The lower end of the gas conveying pipe is connected with a gas input end, spraying heads are mounted at the front ends of the gas conveying pipe and the water body conveying pipe, and water spraying openings are formed in the spraying heads; according to the water-gas mixing gap type and hole type combined jet device, the gas nozzle is formed by combining a plurality of circular spray holes and is distributed around the water nozzle, and jet flows in the same direction of a flow field for granulating blast furnace slag by a high-speed airflow field and water jet flow are mutually attached and mixed, so that the cooling speed of the slag in the flow field for granulating the blast furnace slag is accelerated, and the blast furnace slag can be uniformly granulated. Impact of part of slag particles to the guide cylinder is reduced, and the service life of the guide cylinder is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of jet devices, in particular to a water-gas mixing gap-type and hole-type combined jet device. Background Art

[0002] The existing technology uses water jets to granulate blast furnace slag and recover waste heat. At present, a blast furnace slag granulation device with a cylindrical blast furnace slag granulation flow channel is used. The water jet component in the device generates a high-speed water jet, which uses a high-speed water jet in a guide tube with a certain space to impact and granulate the blast furnace slag into small particles. In this granulation process, some slag particles splash around irregularly, and the inner wall of the guide tube is worn by the impact of slag particles. This directly affects the service life of the equipment, so we improved the water jet component in the water jet granulation equipment.

[0003] A water-gas mixing slit-type and hole-type combined jet device was designed. Utility Model Content

[0004] The utility model aims to provide a water-gas mixing gap-type and hole-type combined jet device to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water-gas mixing gap-type and hole-type combined jet device, comprising a water flow input port, a gas input end and a spray head, a water body transmission pipe is arranged inside the gas transmission pipe, and the rear end of the water body transmission pipe is connected to the water flow input port, a gas transmission pipe is installed at the rear end of the gas transmission pipe, and the lower end of the gas transmission pipe is connected to the gas input end, a spray head is installed at the front end of the gas transmission pipe and the water body transmission pipe, and a water nozzle is opened on the spray head, and a flow regulating plate is installed on the water nozzle, and gas nozzles are evenly opened on the spray head outside the water nozzle.

[0006] Preferably, the water flow input port is connected to the water nozzle through a water body transmission pipe, and the gas input end is connected to the gas nozzle through a gas transmission pipe and a gas transmission pipe.

[0007] Preferably, flange interfaces are provided on the water flow input port and the gas input end, and external devices are connected via the flange interfaces.

[0008] Preferably, the cross section of the water nozzle is rectangular, and the flow regulating plate installed on the water nozzle is detachable, and the front end of the flow regulating plate is a rounded structure.

[0009] Preferably, the air nozzle is composed of a plurality of circular nozzles, which are distributed and arranged around the water nozzle in a rectangular shape.

[0010] Preferably, the input end of the air nozzle opened on the injection head is a 30° frustum structure.

[0011] Preferably, the gas transmission pipe and the water transmission pipe are both flow-ordering stabilization sections with square structures, and the gas transmission pipe is wrapped around the outside of the water transmission pipe to form an enclosed cavity.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The water-gas mixing gap-type and hole-type combined jet device is provided with an air nozzle on the periphery of the rectangular water jet port. The air nozzle is composed of a plurality of circular nozzle holes, which are arranged around the water nozzle in a rectangular shape. The high-speed airflow field and the water jet will produce the same direction jet of the flow field of blast furnace slag granulation, which will produce mutual fit, mixing, interaction, collision of water droplets and high-temperature slag particles, greatly improving the affinity and heat transfer efficiency of water droplets and high-temperature slag particles, so that the slag is cooled faster in the field of blast furnace slag granulation. The high-speed air jet flow field effectively prevents the blast furnace slag granulation process, reduces the impact of some slag particles on the guide tube, and improves the service life of the guide tube. At the same time, the setting of the air nozzle arranged in a rectangular shape on the periphery will help the mixed flow field of blast furnace slag granulation to be sent to the next process of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view schematic diagram of the utility model;

[0015] Figure 2 It is a right side schematic diagram of the utility model;

[0016] Figure 3 It is a schematic diagram of the back side of the injection head of the utility model.

[0017] In the figure: 1. water flow input port; 2. gas input port; 3. gas transmission pipe; 4. gas transmission pipe; 5. water body transmission pipe; 6. injection head; 7. flow regulating plate; 8. water nozzle; 9. gas nozzle. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1—3, a water-gas mixing gap-type and hole-type combined jet device, comprising a water flow input port 1, a gas input terminal 2 and a jet head 6, a water body transmission pipe 5 is arranged inside the gas transmission pipe 4, and the rear end of the water body transmission pipe 5 is connected to the water flow input port 1, a gas transmission pipe 3 is installed at the rear end of the gas transmission pipe 4, and the lower end of the gas transmission pipe 3 is connected to the gas input terminal 2, a jet head 6 is installed at the front end of the gas transmission pipe 4 and the water body transmission pipe 5, and a water nozzle 8 is opened on the jet head 6, and a flow regulating plate 7 is installed on the water nozzle 8, and gas nozzles 9 are evenly opened on the jet head 6 outside the water nozzle 8.

[0020] The water flow input port 1 is connected to the water nozzle 8 through the water body transmission pipe 5, and the gas input end 2 is connected to the gas nozzle 9 through the gas transmission pipe 3 and the gas transmission pipe 4.

[0021] Flange interfaces are provided on both the water input port 1 and the gas input port 2, and external equipment is connected through the flange interfaces. The water input port 1 is a flange interface for water input with a certain pressure and flow rate; the gas input port 2 is a flange interface for gas input with a certain pressure and flow rate. Water and gas enter the flow state sorting and stabilizing section through the flange interfaces respectively, and then are ejected to the front through their respective nozzles.

[0022] The cross section of the water nozzle 8 is rectangular, and the flow regulating plate 7 installed on the water nozzle 8 is detachable. At the same time, the front end of the flow regulating plate 7 is a rounded structure, and the size of the short side of the rectangle can be manually adjusted as needed.

[0023] The gas nozzle 9 is composed of a plurality of circular nozzles, which are distributed and arranged around the water nozzle 8 in a rectangular shape. The water nozzle 8 and the gas nozzle 9 are designed to maintain a certain distance, so that the water jet flow field will not be interfered by the gas jet flow field in the range before the blast furnace slag is granulated, thereby affecting the impact force of the water jet flow field and the granulation effect of the blast furnace slag.

[0024] The high-speed gas jet flow field effectively prevents the granulation process of blast furnace slag and reduces the phenomenon of some slag particles impacting the guide tube, thereby improving the service life of the guide tube. At the same time, the rectangular gas nozzles 9 arranged on the periphery are arranged to send the mixed flow field that helps granulate the blast furnace slag to the next process of the system.

[0025] The input end of the gas nozzle 9 provided on the injection head 6 is a 30° frustum structure.

[0026] The gas transmission pipe 4 and the water transmission pipe 5 are both flow-forming stabilization sections with square structures, and the gas transmission pipe 4 is wrapped around the outside of the water transmission pipe 5 to form an enclosed cavity.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A water-gas mixing slit-type and hole-type combined jet device, comprising a water flow input port (1), a gas input end (2) and a jet head (6), characterized in that: A water body transmission pipe (5) is arranged inside the gas transmission pipe (4), and the rear end of the water body transmission pipe (5) is connected to a water flow input port (1); a gas transmission pipe (3) is installed at the rear end of the gas transmission pipe (4), and the lower end of the gas transmission pipe (3) is connected to a gas input port (2); a spray head (6) is installed at the front end of the gas transmission pipe (4) and the water body transmission pipe (5), and a water nozzle (8) is provided on the spray head (6), and a flow regulating plate (7) is installed on the water nozzle (8); and gas nozzles (9) are evenly provided on the spray head (6) outside the water nozzle (8).

2. A water-gas mixing gap-type and hole-type combined jet device according to claim 1, characterized in that: The water flow input port (1) is connected to the water nozzle (8) via a water body transmission pipe (5), while the gas input end (2) is connected to the gas nozzle (9) via a gas transmission pipe (3) and a gas transmission pipe (4).

3. A water-gas mixing gap-type and hole-type combined jet device according to claim 2, characterized in that: The water flow input port (1) and the gas input port (2) are both provided with flange interfaces, and are connected to external equipment via the flange interfaces.

4. A water-gas mixing gap-type and hole-type combined jet device according to claim 3, characterized in that: The water nozzle (8) has a rectangular cross-section, and the flow regulating plate (7) installed on the water nozzle (8) is detachable, while the front end of the flow regulating plate (7) is a rounded structure.

5. A water-gas mixing gap-type and hole-type combined jet device according to claim 4, characterized in that: The air nozzle (9) is composed of a plurality of circular nozzles, which are distributed and arranged around the water nozzle (8) in a rectangular shape.

6. A water-gas mixing gap-type and hole-type combined jet device according to claim 5, characterized in that: The input end of the gas nozzle (9) provided on the injection head (6) is a 30° frustum structure.

7. A water-gas mixing gap-type and hole-type combined jet device according to claim 6, characterized in that: The gas transmission pipe (4) and the water body transmission pipe (5) are both square-structured flow-form stabilizing sections, and the gas transmission pipe (4) is wrapped around the outside of the water body transmission pipe (5) to form an enclosed cavity.

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