Water adding system for mixing machine

Abstract

The utility model discloses a water adding system for a mixing machine, and relates to the technical field of the ironmaking industry. The water adding system comprises a main water pipe and a main air pipe, a plurality of water outlet pipes are arranged on the main water pipe, and a plurality of spray pipes in one-to-one correspondence with the water outlet pipes are arranged in the main water pipe. One end of the spray pipe is inserted into the water outlet pipe, and the other end of the spray pipe penetrates through the side wall of the main water pipe and then is connected with the main air pipe through a pipeline assembly. The water adding system for the mixing machine can effectively solve the problem that a traditional spray head is prone to being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of iron-making industry, and specifically relates to a water adding system for a mixer. Background Art

[0002] During iron-making, before sintering the ore powder, it is necessary to first mix and pelletize the ore powder through a mixer. The so-called mixing and pelletizing is to add water into the mixer, so that the ore powder is wetted and bonded into balls. The traditional water adding method of the mixer is to set a nozzle in the mixer, so as to spray water into the mixer to wet the ore powder during the mixing process.

[0003] However, although the traditional nozzle can ensure the uniformity of spraying, due to the small water outlet, it is easy to cause the nozzle to be blocked due to the influence of water quality or pipeline attachments during the water adding process. Once an individual nozzle is blocked, the wetting of the mixed material will be uneven, thus affecting the sintering ignition process.

[0004] In addition, the blocked part of the traditional nozzle is mainly manifested at the nozzle outlet position. Once the nozzle outlet is blocked by particulate matter, the flow rate will become smaller. And due to the relatively harsh environment in the mixer, impurities will slowly accumulate at the nozzle, eventually causing the overall blockage of the nozzle and affecting the water adding of the mixed material. And unclogging the nozzle requires shutting down the machine, seriously affecting the normal sintering production. Summary of the Utility Model

[0005] In view of the above problems, a water adding system for a mixer provided by the present application can effectively solve the problem that the traditional nozzle is prone to blockage.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0007] A water adding system for a mixer includes a main water pipe and a main air pipe. A plurality of water outlet pipes are arranged on the main water pipe, and a plurality of spray pipes corresponding to the water outlet pipes one by one are arranged in the main water pipe;

[0008] One end of the spray pipe is inserted into the water outlet pipe, and the other end of the spray pipe passes through the side wall of the main water pipe and is connected to the main air pipe through a pipeline assembly.

[0009] Further, the orientation of the air outlet end of the spray pipe is the same as the orientation of the outlet of the water outlet pipe.

[0010] Further, the spray pipe is a straight pipe and is coaxially arranged with the water outlet pipe.

[0011] Further, a stop block is arranged inside the main water pipe on the nozzle, a sealing gasket is arranged between the stop block and the side wall of the main water pipe on the nozzle, a locking nut is arranged outside the main water pipe on the nozzle, and under the locking action of the locking nut, the sealing gasket is pressed between the stop block and the side wall of the main water pipe.

[0012] Further, a groove for accommodating the stop block is arranged on the inner side wall of the main water pipe.

[0013] Further, the side of the stop block facing the inside of the main water pipe is an arc surface and is coplanar with the inner side surface of the main water pipe.

[0014] Further, the stop block has a non-circular structure.

[0015] Further, the pipeline assembly includes a first pipe joint arranged at the air outlet of the main air pipe, a second pipe joint arranged on the nozzle, and a connecting pipeline arranged between the first pipe joint and the second pipe joint.

[0016] Further, a branch pipe is arranged at the outlet of the water outlet pipe, and the air outlet end of the nozzle extends into the branch pipe.

[0017] The beneficial effects of the utility model are as follows:

[0018] A water adding system for a mixer provided by an embodiment of the present application sprays compressed air into a water outlet pipe through a nozzle. When water passes through the water outlet pipe, the water can be impacted and atomized under the action of the compressed air to form water mist and spray into the mixer. This not only ensures the uniformity of spraying but also avoids the blockage of the nozzle by impurities. Description of the Drawings

[0019] Figure 1 is a three-dimensional structural schematic diagram of a water adding system for a mixer provided by an embodiment of the present application;

[0020] Figure 2 is a front view of a water adding system for a mixer provided by an embodiment of the present application;

[0021] Figure 3 is Figure 2 the A-A cross-sectional view in

[0022] Figure 4 is Figure 3 the enlarged structural schematic diagram of part A in

[0023] Figure 5 is a side view of a water adding system for a mixer provided by an embodiment of the present application;

[0024] Figure 6 is Figure 5 the sectional view taken along line B-B in

[0025] Figure 7 the schematic diagram of the internal structure of the main water pipe;

[0026] Figure 8 is Figure 7 the enlarged schematic diagram of part B in

[0027] Figure 9 the three-dimensional schematic diagram of the nozzle;

[0028] Figure 10 is Figure 9 the enlarged schematic diagram of part C in

[0029] Figure 11 the side view of a water adding system for a mixer provided by another embodiment of the present application.

[0030] In the figure: 1, main water pipe; 11, water outlet pipe; 12, groove;

[0031] 2, main air pipe;

[0032] 3, nozzle; 31, stop block; 311, flat opening;

[0033] 41, first pipe joint; 42, second pipe joint; 43, connecting pipeline;

[0034] 5, gasket;

[0035] 6, lock nut;

[0036] 7, branch pipe; 71, back-tightening nut. Detailed implementation manners

[0037] In order to enable those skilled in the art of the present technology to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described in detail below with reference to the accompanying drawings in the embodiments of the present application. The described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those skilled in the art without creative efforts based on the embodiments of the present application shall fall within the protection scope of the present application.

[0038] For the convenience of description, a coordinate system is now defined as Figure 1 shown, with the left-right direction as the horizontal direction, the front-back direction as the longitudinal direction, and the up-down direction as the vertical direction.

[0039] Embodiment 1

[0040] As Figure 1 and Figure 2As shown in the figure, a water adding system for a mixer includes a main water pipe 1 and a main air pipe 2. The main water pipe 1 is connected to a water source, and the main air pipe 2 is connected to an air source. The air source can introduce compressed air into the main air pipe 2. A plurality of water outlet pipes 11 are arranged on the main water pipe 1. The water outlet pipes 11 are arranged perpendicular to the main water pipe 1, and the plurality of water outlet pipes 11 are evenly arranged along the axial direction of the main water pipe 1.

[0041] As Figure 3 , Figure 5 and Figure 6 shown in the figure, a plurality of spray pipes 3 corresponding to the water outlet pipes 11 one by one are arranged in the main water pipe 1. One end of the spray pipe 3 is inserted into the water outlet pipe 11, and the other end of the spray pipe 3 passes through the side wall of the main water pipe 1 and is connected to the main air pipe 2 through a pipeline assembly. A sealed connection is adopted between the spray pipe 3 and the side wall of the main water pipe 1.

[0042] As Figure 3 and Figure 6 shown in the figure, during operation, the air source introduces compressed air into the spray pipe 3 through the main air pipe 2 and the pipeline assembly, and the compressed air sprays out from the lower end outlet of the spray pipe 3. When the water in the main water pipe 1 flows out through the water outlet pipe 11, it will be mixed with the airflow sprayed out from the spray pipe 3, and a water mist will be formed under the impact of the compressed air, achieving an effect of uniform spraying. Compared with the traditional water adding device, the nozzle is removed in this application, and spraying is carried out by the impact of compressed air on the water flow. In this way, not only can the effect of uniform spraying be achieved, but also since the outlet area of the water outlet pipe 11 is large, it is not affected by water quality and pipeline attachments, so it is not easy to be blocked.

[0043] Furthermore, as Figure 3 and Figure 6 shown in the figure, the orientation of the air outlet end of the spray pipe 3 is the same as the orientation of the outlet of the water outlet pipe 11. Preferably, the air outlet end of the spray pipe 3 is coaxially arranged with the water outlet pipe 11.

[0044] In this way, it can ensure that the airflow and the water flow have the same direction. On the one hand, it can ensure the atomization effect, and on the other hand, it is not easy to accumulate impurities at the water outlet pipe 11, further improving the anti-blocking effect.

[0045] Furthermore, as Figure 3 and Figure 6 shown in the figure, the spray pipe 3 is a straight pipe and is coaxially arranged with the water outlet pipe 11.

[0046] As Figure 4 and Figure 9As shown, a stop block 31 is provided inside the main water pipe 1 on the nozzle 3, and the stop block 31 is fixedly connected to the nozzle 3 by welding. A gasket 5 is provided between the stop block 31 and the side wall of the main water pipe 1 on the nozzle 3. A locking nut 6 is provided outside the main water pipe 1 on the nozzle 3, and under the locking action of the locking nut 6, the gasket 5 is pressed between the stop block 31 and the side wall of the main water pipe 1. In this way, on the one hand, it is convenient for installation and can make the nozzle 3 and the main water pipe 1 form an integral body. On the other hand, it can play a sealing role and achieve a sealed connection between the nozzle 3 and the main water pipe 1.

[0047] Further, as Figure 7 and Figure 8 shown, a groove 12 for accommodating the stop block 31 is provided on the inner side wall of the main water pipe 1, and the shape of the groove 12 coincides with the shape of the stop block 31. As Figure 4 and Figure 10 shown, one side of the stop block 31 facing the groove 12 is a plane, and one side of the stop block 31 facing the inside of the main water pipe 1 is an arc surface. When the stop block 31 is located in the groove 12, the arc surface is coplanar with the inner side surface of the main water pipe 1, that is, the arc surface can complement the missing part of the inner side surface of the main water pipe 1 at the groove 12 and form a complete cylindrical surface. In this way, it can avoid interfering with the flow of water inside the main water pipe 1.

[0048] Further, for the convenience of installation, the stop block 31 has a non-circular structure. Here, the non-circular structure means that as long as it is not a circular structure, it can be an ellipse, a polygon or an irregular shape. As a specific embodiment, in this embodiment, the support block has a circular structure, and a flat opening 311 is provided on the stop block 31. The flat opening 311 can act as a positioning surface to play a positioning role, so as to ensure that when the stop block 31 is installed in the groove 12, the arc surface can form a complete cylindrical surface with the inner side surface of the main water pipe 1.

[0049] As Figure 2 and Figure 3 shown, the pipeline assembly includes a first pipe joint 41 provided at the air outlet of the main air pipe 2, a second pipe joint 42 provided on the nozzle 3, and a connecting pipeline 43 provided between the first pipe joint 41 and the second pipe joint 42. Exemplarily, the connecting pipeline 43 adopts a hose.

[0050] Further, as Figure 2 and Figure 3As shown, a branch pipe 7 is fixedly arranged at the outlet of the water outlet pipe 11 in a detachable manner, and the air outlet end of the spray pipe 3 extends into the branch pipe 7.

[0051] As a specific implementation manner, in this embodiment, the branch pipe 7 is fixedly connected to the water outlet pipe 11 by means of threaded connection. Exemplarily, an internal thread is provided at the outlet end of the water outlet pipe 11, an external thread matching the internal thread is provided at one end of the branch pipe 7, and a back-tightening nut 71 is provided on the branch pipe 7 below the water outlet pipe 11.

[0052] Embodiment Two

[0053] As Figure 11 shown, the spray pipe 3 is a bent pipe, including a first pipe section and a second pipe section, and an included angle is formed between the first pipe section and the second pipe section. As a specific implementation manner, the included angle in this embodiment is 90°. The rest of the structure is the same as that in Embodiment One.

[0054] Based on the embodiments provided in the present application, other embodiments obtained by those skilled in the art through means such as combination, splitting, and recombination of the embodiments of the present application do not exceed the protection scope of the present application.

[0055] The above specific implementation manners have detailed the purpose, technical solutions, and beneficial effects of the embodiments of the present application. The above are only the specific implementation manners of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. That is, any modifications, equivalent replacements, improvements, etc. made on the basis of the embodiments of the present application shall be included in the protection scope of the embodiments of the present application.

Claims

1. A water adding system for a mixer, characterized in that: It comprises a main water pipe (1) and a main air pipe (2), wherein the main water pipe (1) is provided with a plurality of water outlet pipes (11), and the main water pipe (1) is provided with a plurality of spray pipes (3) corresponding one to one with the water outlet pipes (11); One end of the nozzle (3) is inserted into the water outlet pipe (11), and the other end of the nozzle (3) passes through the side wall of the main water pipe (1) and is connected to the main air pipe (2) through a pipeline assembly.

2. A water adding system for a mixer according to claim 1, characterized in that: The direction of the air outlet end of the nozzle (3) is the same as the direction of the outlet of the water outlet pipe (11).

3. A water adding system for a mixer according to claim 1, characterized in that: The spray pipe (3) is a straight pipe and is coaxially arranged with the water outlet pipe (11).

4. A water adding system for a mixer according to claim 1, characterized in that: A stop block (31) is provided on the nozzle (3) inside the main water pipe (1), a sealing gasket (5) is provided on the nozzle (3) between the stop block (31) and the side wall of the main water pipe (1), and a locking nut (6) is provided on the nozzle (3) outside the main water pipe (1), and under the locking action of the locking nut (6), the sealing gasket (5) is pressed between the stop block (31) and the side wall of the main water pipe (1).

5. A water adding system for a mixer according to claim 4, characterized in that: A groove (12) for accommodating the stop block (31) is provided on the inner side wall of the main water pipe (1).

6. A water adding system for a mixer according to claim 5, characterized in that: The side of the stop block (31) facing the inside of the main water pipe (1) is an arc-shaped surface, and is coplanar with the inner side surface of the main water pipe (1).

7. A water adding system for a mixer according to claim 6, characterized in that: The stop block (31) has a non-circular structure.

8. A water adding system for a mixer according to claim 1, characterized in that: The pipeline assembly comprises a first pipe joint (41) arranged on the air outlet of the main air pipe (2), a second pipe joint (42) is arranged on the nozzle (3), and a connecting pipeline (43) is arranged between the first pipe joint (41) and the second pipe joint (42).

9. A water adding system for a mixer according to claim 6, characterized in that: A branch pipe (7) is provided at the outlet of the water outlet pipe (11), and the air outlet end of the nozzle (3) extends into the branch pipe (7).

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