Water spraying device of mixing machine

Abstract

The utility model provides a water spraying device of a mixing machine, which is arranged in a roller of the mixing machine and relates to the technical field of smelting and sintering, the water spraying device of the mixing machine at least comprises a water supply main pipe and a plurality of branch pipes arranged on the water supply main pipe at intervals, and one end of each branch pipe is connected with the water supply main pipe through a first pressure regulating valve. A spray head is arranged at the other end of each branch pipe, and a plurality of water spraying openings are formed in each spray head. The water spraying device of the mixing machine provided by the utility model can effectively improve the mixing effect of mixed materials.

Description

Technical Field

[0001] The utility model relates to the technical field of smelting and sintering, in particular to a water spraying device for a mixer. Background Art

[0002] Smelting and sintering technology is a key process in the steel industry. It involves mixing and pelletizing various powdered iron-containing raw materials, such as iron ore powder and fine-grained ore powder, with appropriate amounts of fuel and flux. The mixture is then ignited and sintered on sintering equipment after mixing and pelletizing. A mixer is a mechanical device that mixes, humidifies, pelletizes, and pelletizes these materials. It is used to mix the ingredients from the batching chamber and add appropriate amounts of water to moisten them, producing a mixture with the moisture content and particle size required for the sintering process.

[0003] Existing mixers include a drum and a water supply structure. The water supply structure comprises at least two water supply pipes suspended within the drum. Each water supply pipe is equipped with several nozzles, which spray water upward or diagonally upward. The nozzles on adjacent water supply pipes spread the water in a V-shaped pattern. However, because this does not take into account the resistance along the ends of the water pipes, the water pressure and flow at these ends are low, resulting in insufficient water addition at the drum end and uneven moisture content in the mixture. This can easily cause subsequent production fluctuations and affect the yield and quality of the sintered ore. Furthermore, due to the large internal space of the drum, dead corners where water cannot be added are prone to occur. Adding water supply pipes would further occupy space within the drum, affecting the mixing effect of the batch materials.

[0004] In view of this, the inventor has designed a water spraying device for a mixer based on his many years of experience in production design in this field and related fields and after repeated experiments, in order to solve the problems existing in the prior art. Utility Model Content

[0005] The purpose of the utility model is to provide a water spraying device for a mixer, which can effectively improve the mixing effect of the mixed material.

[0006] To achieve the above-mentioned purpose, the present invention proposes a mixer water spraying device, which is arranged in the drum of the mixer, wherein the mixer water spraying device includes at least a water supply main and a plurality of branch pipes arranged at intervals on the water supply main, one end of each of the branch pipes is connected to the water supply main through a first pressure regulating valve, and the other end of each of the branch pipes is provided with a nozzle, and a plurality of water spraying ports are opened on the nozzle.

[0007] In the mixer water spraying device as described above, a second pressure regulating valve is provided at one end of the water supply main pipe, and the water supply main pipe is connected to the water supply pipeline through the second pressure regulating valve.

[0008] The mixer water spraying device as described above, wherein the mixer water spraying device further includes an electronic control unit, and each of the first pressure regulating valve and the second pressure regulating valve is electrically connected to the electronic control unit respectively.

[0009] The mixer water spraying device as described above, wherein a feed port and a discharge port are respectively provided at both ends of the drum, and the mixer water spraying device also includes two moisture detectors, which are respectively arranged at the feed port and the discharge port, and the two moisture detectors are respectively electrically connected to the electronic control unit.

[0010] The mixer water spraying device as described above, wherein a flow meter is further provided between the water supply main and the water supply pipeline, and the flow meter is electrically connected to the electronic control unit.

[0011] The mixer water spraying device as described above, wherein the nozzle has a nozzle body, the nozzle body is in the shape of a cone with a diameter gradually expanding from the bottom to the top, the top of the nozzle body is open and connected to the first pressure regulating valve, and a plurality of water spray ports are respectively provided on the side wall of the nozzle body and the bottom of the nozzle body.

[0012] In the mixer water spraying device as described above, the water supply mains are respectively arranged horizontally, the branch pipes are arranged vertically, and the plurality of branch pipes are sequentially spaced along the length direction of the water supply main.

[0013] The mixer water spraying device as described above, wherein the water supply main is provided with 30 branch pipes, and the interval between every two adjacent branch pipes is 50 cm.

[0014] The mixer water spraying device as described above, wherein supports are respectively provided at both ends of the drum, and the ends of the drum are mounted on the corresponding supports. The mixer water spraying device also includes a steel wire rope, and the two ends of the steel wire rope are respectively fixed on the two supports, and the water supply main is hung on the steel wire rope.

[0015] Compared with the prior art, the present invention has the following characteristics and advantages:

[0016] The mixer water spraying device proposed by the utility model is provided with a first pressure regulating valve on each branch pipe, and the water pressure in each branch pipe and the corresponding nozzle is controlled by the first pressure regulating valve to ensure that the water pressure at the water inlet end of each branch pipe fluctuates within a certain range, so as to accurately adjust the water spraying amount of each nozzle and ensure the mixing effect of the mixed material in the drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present invention in any way. Furthermore, the shapes and proportional dimensions of the components in the drawings are for illustrative purposes only and are intended to facilitate understanding of the present invention. They are not intended to limit the shapes and proportional dimensions of the components of the present invention. Those skilled in the art, guided by the present invention, may select various possible shapes and proportional dimensions to implement the present invention, depending on the specific circumstances.

[0018] Figure 1 This is a schematic diagram of the structure of the water spraying device of the mixer proposed in the utility model;

[0019] Figure 2 It is a structural diagram of the nozzle in this utility model.

[0020] Description of Reference Numerals

[0021] 100. Mixer water spray device; 10. Water supply main;

[0022] 20. Branch pipe; 30. First pressure regulating valve;

[0023] 40. Nozzle; 41. Water outlet;

[0024] 42. Nozzle body; 50. Wire rope;

[0025] 60. Second pressure regulating valve; 70. Flow meter;

[0026] 80. Electronic control unit; 90. Moisture detector;

[0027] 200, roller; 210, support;

[0028] 220. Feed belt; 230. Discharge belt. DETAILED DESCRIPTION

[0029] The details of the present invention can be more clearly understood by referring to the accompanying drawings and the description of the specific embodiments of the present invention. However, the specific embodiments of the present invention described herein are for the purpose of explaining the present invention only and should not be construed as limiting the present invention in any way. Based on the teachings of the present invention, skilled artisans can conceive of any possible variations based on the present invention, which should be considered to fall within the scope of the present invention.

[0030] Unless otherwise specified, the directions of up, down, left, and right mentioned in this document are based on the directions shown in this utility model. Figure 1 The up, down, left and right directions in the figure shall prevail and are explained here.

[0031] like Figure 1As shown, the present invention proposes a mixer water spraying device 100, which is arranged in a drum 200 of the mixer, and the two ends of the drum 200 are respectively an inlet end and an outlet end. The mixer water spraying device 100 includes at least a water supply main 10 and a plurality of branch pipes 20 arranged at intervals on the water supply main 10. One end of each branch pipe 20 is connected to the water supply main 10 through a first pressure regulating valve 30, and the other end of each branch pipe 20 is provided with a nozzle 40, and the nozzle 40 is provided with a plurality of water spraying ports 41.

[0032] The mixer water spraying device 100 proposed by the present invention is provided with a first pressure regulating valve 30 on each branch pipe 20. The first pressure regulating valve 30 controls the water pressure in each branch pipe 20 and the corresponding nozzle 40 to ensure that the water pressure at the water inlet end of each branch pipe 20 fluctuates within a certain range, so as to accurately adjust the water spraying amount of each nozzle 40 and ensure the mixing effect of the mixed material in the drum 200.

[0033] In an optional embodiment of the present invention, a second pressure-regulating valve 60 is provided at one end of the water supply main 10, forming a water inlet connected to the water supply line. With this structure, the second pressure-regulating valve 60 controls the water pressure within the water supply main 10, further precisely controlling the total water volume sprayed by the mixer spray device 100.

[0034] In an optional embodiment of the present invention, the mixer water spraying device 100 further includes an electronic control unit 80, and the second pressure regulating valve 60 and each of the first pressure regulating valves 30 are electrically connected to the electronic control unit 80. By regulating the openings of the first pressure regulating valves 30 and the second pressure regulating valves 60 via the electronic control unit 80, the mixer water spraying device 100 can rapidly adjust the water spraying amount according to changes in the moisture content of the mixed material, ensuring efficient mixing and improving the rapid response capability of the mixer water spraying device 100. This also reduces the need for manual operation and the possibility of error.

[0035] In an optional example of this embodiment, the electronic control unit 80 controls the second pressure regulating valve 60 to automatically adjust the water pressure at the water inlet end of the water supply main 10 in real time, and controls the first pressure regulating valve 30 to automatically adjust the water pressure at the water inlet end of the branch pipe 20 in real time, so as to ensure that the water pressure difference between the water inlet end of each branch pipe 20 and the water inlet end of the water supply main 10 fluctuates within the range of ±0.01Mpa, thereby further improving the uniformity of water addition to the mixture.

[0036] In an optional example of this embodiment, a flow meter 70 is further provided between the water supply main 10 and the water supply pipeline. The flow meter 70 is electrically connected to the electronic control unit 80 so that the electronic control unit 80 can obtain the water flow in the water supply main 10 in real time and accurately.

[0037] In an optional example of the present invention, the electronic control unit 80 is disposed outside the drum 200 and is electrically connected to the first pressure regulating valve 30 and the second pressure regulating valve 60 through electric wires.

[0038] In an optional example of the present invention, each wire is wrapped with an insulating sleeve to ensure electrical safety.

[0039] In an optional example of this embodiment, a feed port and a discharge port are respectively provided at both ends of the drum 200. The mixer water spraying device 100 includes two moisture detectors 90, which are respectively provided at the feed port and the discharge port of the drum 200. The two moisture detectors 90 respectively detect the moisture content of the mixed material conveyed from the feed port and the discharge port of the drum 200. The two moisture detectors 90 are respectively electrically connected to the electronic control unit 80. The electronic control unit 80 automatically adjusts the amount of production water added based on the moisture content of the mixed material at the feed port and the discharge port of the drum 200 and production needs, ensuring that the moisture content of the mixed material fluctuates within the range of 7.8±0.1%.

[0040] In an optional example, the drum 200 is tilted, with one end of the drum 200 having the discharge port slightly lower than the other end of the drum 200 having the feed port, so that the mixed material in the drum 200 can be easily discharged from the discharge port.

[0041] Furthermore, a feed belt 220 is provided at the feed port, and a discharge belt 230 is provided at the discharge port. Two moisture detectors 90 are respectively provided on the feed belt 220 and the discharge belt 230 .

[0042] In an optional embodiment of the present invention, as Figure 2 As shown, the nozzle 40 has a nozzle body 42. The nozzle body 42 is in the shape of a cone with a gradually increasing diameter from the bottom to the top. The top of the nozzle body 42 is open and connected to the first pressure regulating valve 30. A plurality of water spray ports 41 are respectively provided on the side walls and the bottom of the nozzle body 42. With the above structure, water flows out from the nozzle body 42 in different directions to spray water on the mixture, which is beneficial to improving the uniformity of water addition to the mixture. At the same time, since the nozzle body 42 is in the shape of a cone, the side walls of the nozzle body 42 are tilted downward, and the water spray ports 41 provided on the side walls are also tilted downward. The direction of the water sprayed from the water spray ports 41 is also tilted downward to ensure that the water sprayed by the nozzle 40 can be sprayed on the mixture, further ensuring the uniformity of water addition to the mixture.

[0043] In an optional example of this embodiment, the nozzle body 42 is conical, and multiple water spray ports 41 are evenly distributed on the side walls and bottom surface of the nozzle body 42 so that water can be sprayed evenly in the circumferential direction of the nozzle body 42.

[0044] In an optional embodiment of the present invention, the water supply main 10 is arranged horizontally, the branch pipes 20 are arranged vertically, and the multiple branch pipes 20 are sequentially spaced along the length direction of the water supply main 10 .

[0045] In an optional example of this embodiment, 30 branch pipes 20 are provided on the water supply main 10, and the interval between every two adjacent branch pipes 20 is 50 cm, which helps to achieve uniform distribution of water flow and avoid excessive or insufficient water supply in certain areas.

[0046] In an optional example of this embodiment, the length of the branch pipe 20 can be set according to actual needs, preferably so as not to affect the mixing of the mixed material in the drum 200.

[0047] In an optional example of this embodiment, supports 210 are provided at both ends of the drum 200, and the ends of the drum 200 are mounted on the corresponding supports 210. The mixer water spraying device 100 also includes a steel wire rope 50, the ends of which are respectively fixed to the two supports 210, and the water supply main 10 is suspended from the steel wire rope 50. The high strength of the steel wire rope 50 ensures that the water supply main 10 can be firmly suspended in the air and is not prone to falling or tilting, thereby ensuring the stability of the entire mixer water spraying device 100.

[0048] In an optional example, the support 210 and the roller 200 may both adopt structures well known to those skilled in the art, which will not be described in detail here.

[0049] The detailed explanation of the above-mentioned embodiments is only intended to explain the present invention so as to facilitate a better understanding of the present invention. However, these descriptions cannot be interpreted as limiting the present invention for any reason. In particular, the various features described in different embodiments can also be arbitrarily combined with each other to form other embodiments. Unless there is a clear description to the contrary, these features should be understood as being applicable to any embodiment and are not limited to the described embodiments.

Claims

1. A water spraying device for a mixer, arranged in the drum of the mixer, characterized in that: The mixer water spraying device comprises at least a water supply main and a plurality of branch pipes spaced apart from each other on the water supply main, one end of each branch pipe being connected to the water supply main via a first pressure regulating valve, and the other end of each branch pipe being provided with a nozzle having a plurality of water spraying ports; The mixer water spraying device further includes an electronic control unit, and each of the first pressure regulating valves is electrically connected to the electronic control unit; The electronic control unit adjusts the opening of the first pressure regulating valve.

2. The water spraying device of the mixer according to claim 1, characterized in that: A second pressure regulating valve is provided at one end of the water supply main, and the water supply main is connected to the water supply pipeline through the second pressure regulating valve.

3. The water spraying device of the mixer according to claim 2, characterized in that: Each of the second pressure regulating valves is electrically connected to the electronic control unit.

4. The water spraying device for a mixer according to claim 3, wherein: A feed port and a discharge port are respectively provided at both ends of the drum. The mixer water spraying device also includes two moisture detectors, which are respectively arranged at the feed port and the discharge port, and the two moisture detectors are respectively electrically connected to the electronic control unit.

5. The water spraying device for a mixer according to claim 3, characterized in that: A flow meter is further provided between the water supply main and the water supply pipeline, and the flow meter is electrically connected to the electronic control unit.

6. The water spraying device for a mixer according to claim 1, wherein: The nozzle has a nozzle body, which is in the shape of a cone with a diameter gradually expanding from the bottom to the top. The top of the nozzle body is open and connected to the first pressure regulating valve. A plurality of water spray ports are respectively provided on the side wall and the bottom of the nozzle body.

7. The water spraying device for a mixer according to any one of claims 1 to 6, characterized in that: The drum and the water supply main are respectively arranged horizontally, the branch pipes are arranged vertically, and a plurality of the branch pipes are sequentially spaced along the length direction of the water supply main.

8. The water spraying device for a mixer according to claim 7, wherein: The water supply main is provided with 30 branch pipes, and the interval between every two adjacent branch pipes is 50 cm.

9. The water spraying device for a mixer according to claim 7, wherein: Supports are respectively provided at both ends of the drum, and the ends of the drum are installed on the corresponding supports. The mixer water spraying device also includes a steel wire rope, and the two ends of the steel wire rope are respectively fixed on the two supports, and the water supply main is hung on the steel wire rope.

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