A blast furnace taphole plugging and mud measuring system

Abstract

The utility model provides a kind of blast furnace mud gun mouth to measure the quantity of mud, it includes the pipeline for conveying mud gun, and two groups of ultrasonic sensors installed on pipeline, each group of ultrasonic sensors includes respectively transmitter and receiver, and two groups of ultrasonic sensors are symmetrically set in the two sides of pipeline crossing, wherein transmitter and receiver are respectively including body, and wiring terminal connected with body, the end of body away from wiring terminal is working end, working end emits or receives ultrasonic wave ray, working end is fixed on the outer wall of pipeline and it has filling cavity between the outer wall of pipeline, filling cavity is filled with couplant.In the contact surface of ultrasonic sensor and the outer wall of pipeline, filling cavity is provided, and the filling cavity is filled with couplant, which can reduce energy loss, so as to reduce the measurement deviation, further improve the accuracy of mud gun quantity, solve the problem of low accuracy in the contact gap between ultrasonic sensor and pipeline in the prior art.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for blast furnace mud gun plugging, and in particular to a blast furnace mud gun plugging mud dispensing measurement system. Background Technology

[0002] Blast furnace clay guns are used to press clay into the blast furnace taphole. During this process, the amount of clay pressed in needs to be controlled to avoid over- or under-pressing. Current technology typically obtains the clay quantity manually, specifically through mechanical measurement. The depth of clay pressing is estimated by observing the pointer stroke on the clay gun machine. However, significant differences between operators can lead to substantial deviations in the clay quantity measurement. Existing technology can also use sensors to assist in measuring the clay quantity. For example, ultrasonic sensors can be installed on the clay conveying pipeline to measure the speed of clay pressing, which is then converted into the clay quantity. This provides higher accuracy than manual observation. However, ultrasonic sensors are usually installed on the outer wall of the pipeline, and there is inevitably a contact gap between the sensor and the pipeline wall. The ultrasonic waves pass through this contact gap (or through the contact gap and then through the pipeline wall), resulting in energy loss and potentially causing measurement deviations, leading to relatively low accuracy. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a blast furnace mud gun plugging mud volume measurement system, which solves the problem that the contact gap between the ultrasonic sensor and the pipe may lead to low accuracy in existing technologies.

[0004] According to an embodiment of this utility model, a blast furnace mud gun plugging mud quantity measurement system includes a pipe for conveying mud and two sets of ultrasonic sensors installed on the pipe. Each set of ultrasonic sensors includes a transmitter and a receiver, and the two sets of ultrasonic sensors are symmetrically arranged on both sides of the pipe. Each transmitter and receiver includes a body and a terminal connected to the body. The end of the body facing away from the terminal is the working end, which emits or receives ultrasonic waves. The working end is fixed to the outer wall of the pipe, and a filling cavity exists between the working end and the outer wall of the pipe, filled with a coupling agent. The filling cavity, filled with a coupling agent, at the contact surface between the ultrasonic sensor and the outer wall of the pipe reduces energy loss, thereby reducing measurement deviation and further improving the accuracy of the mud quantity. This solves the problem in the prior art where a contact gap between the ultrasonic sensor and the pipe can lead to low accuracy.

[0005] Furthermore, the main body is fixedly connected to a mounting plate, which is fixedly connected to the outer wall of the pipe, and the filling cavity is set inside the mounting plate.

[0006] Furthermore, the mounting plate is also provided with an injection hole and an outlet hole that communicate with the filling cavity, and the injection hole and outlet hole are detachably connected to a sealing rod.

[0007] Furthermore, the mounting plate is fixedly connected with sleeves that surround the injection hole and the outlet hole respectively. The plugging rod includes a first connecting section and a second connecting section. The first connecting section is threadedly connected to the injection hole and the outlet hole, and the second connecting section is threadedly connected to the sleeve.

[0008] Furthermore, the second connecting section is also fixedly connected to a rotating section located outside the sleeve.

[0009] Furthermore, there is an annular contact surface between the rotating section and the sleeve.

[0010] Furthermore, the sleeve is also provided with balance holes that connect the inside and outside of it.

[0011] Furthermore, a first spiral and a second spiral are respectively provided on the first connecting segment and the second connecting segment. The first spiral extends from one end of the first connecting segment to the other end, and the second spiral extends from the end near the first spiral to the balance hole.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By setting a filling cavity between the outer wall of the pipe and the ultrasonic sensor, and filling the filling cavity with coupling agent, energy loss can be reduced, thereby reducing measurement deviation and further improving the accuracy of the mud quantity. This solves the problem in the prior art where the contact gap between the ultrasonic sensor and the pipe may lead to low accuracy. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0015] Figure 2 for Figure 1 Enlarged schematic diagram of a local structure at point A;

[0016] Figure 3 for Figure 2 Enlarged schematic diagram of the local structure at point B;

[0017] In the above attached figures:

[0018] 1. Pipeline; 2. Transmitter; 3. Receiver; 4. Body; 5. Terminal; 6. Filling cavity; 7. Mounting plate; 8. Sealing rod; 9. Sleeve; 10. First connecting section; 11. Second connecting section; 12. First spiral; 13. Second spiral; 14. Rotating section; 15. Balance hole; 16. Plug. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] In an exemplary implementation, such as Figure 1 , 2 As shown, this embodiment provides a blast furnace mud gun plugging mud dispensing measurement system, which includes a pipe 1 for conveying the mud gun, and two sets of ultrasonic sensors installed on the pipe 1. Each set of ultrasonic sensors includes a transmitter 2 and a receiver 3, and the two sets of ultrasonic sensors are symmetrically arranged on both sides of the pipe 1. The transmitter 2 and receiver 3 each include a body 4 and a terminal 5 connected to the body 4 (the terminal 5 is used to connect wires to the control system, collect and analyze data, and finally calculate the mud dispensing amount, which is then displayed on the display screen so that the operator can clearly observe the final measurement data). The end of the body 4 away from the terminal 5 is the working end, which emits or receives ultrasonic rays. The working end is fixed to the outer wall of the pipe 1, and there is a filling cavity 6 between the working end and the outer wall of the pipe 1. The filling cavity 6 is filled with a coupling agent, which is a commonly used coupling agent in the present invention, which can reduce the energy loss of ultrasonic waves when passing through the filling cavity 6, thereby making the measurement bias... The difference is reduced, further improving the accuracy of the mud volume, and solving the problem that the contact gap between the ultrasonic sensor and the pipe 1 may lead to low accuracy in the existing technology; more specifically, the body 4 is fixedly connected to the mounting plate 7 for connecting to the pipe 1. The mounting plate 7 provides the mounting base so that the body 4 can be fixed on the outer wall of the pipe 1 to realize the installation of the ultrasonic sensor, and the filling cavity 6 is set inside the mounting plate 7; more specifically, the mounting plate 7 has an annular structure that extends beyond the body 4, which facilitates the connection between the mounting plate 7 and the outer wall of the pipe 1, such as by welding. More specifically, the mounting plate 7 is also provided with an injection hole and an outlet hole that communicate with the filling cavity 6. The injection hole and the outlet hole are detachably connected to a sealing rod 8. The injection hole and the outlet hole are located on the annular structure. The sealing rod 8 can be removed and the coupling agent can be injected through the injection hole. After the coupling agent is discharged from the outlet hole, the coupling agent is filled after a period of time, and then the sealing rod 8 can be resealed.

[0022] like Figure 1-3 As shown, the mounting plate 7 is fixedly connected with sleeves 9 surrounding the injection hole and the outlet hole, respectively. The inner diameter of the sleeves 9 is larger than that of the injection hole and the outlet hole. The sealing rod 8 includes a first connecting section 10 and a second connecting section 11. The first connecting section 10 is threaded to the injection hole and the outlet hole, and the second connecting section 11 is threaded to the sleeve 9. That is, the outer diameter of the first connecting section 10 is smaller than that of the second connecting section 11. There is an annular step structure between the first connecting section 10 and the second connecting section 11. Correspondingly, there is also an annular step structure between the sleeve 9 and the injection hole and the outlet hole. When the two come into contact, they are completely connected, realizing the connection of the sealing rod 8. At the same time, A first spiral 12 and a second spiral 13 are provided outside the first connecting section 10 and the second connecting section 11. The corresponding injection hole and outlet hole are provided with spirals that cooperate with the first spiral 12, and the sleeve 9 is provided with a spiral that cooperates with the second spiral 13, thus realizing the detachable connection of the sealing rod 8. Furthermore, a rotating section 14 is also connected to the second connecting section 11. The rotating section 14 is located outside the sleeve 9, which is convenient for the operator to hold, thereby facilitating the detachable connection of the sealing rod 8. More specifically, there is an annular contact surface between the rotating section 14 and the sleeve 9, and the connection is complete when the rotating section 14 and the sleeve 9 abut.

[0023] like Figure 2 , 3 As shown in the more detailed scheme, the sleeve 9 is also provided with a balance hole 15 connecting its inside and outside. The first spiral 12 extends from one end of the first connecting section 10 to the other end, and the second spiral 13 extends from the end near the first spiral 12 to the balance hole 15. During the process of detachably connecting the sealing rod 8, that is, when connecting the sealing rod 8, the first spiral 12, the second spiral 13, and the balance hole 15 form a channel connecting the filling cavity 6 and the external space. However, this channel is very small. During the connection process, the two sealing rods 8 are connected simultaneously. In this way, the two sealing rods 8 will gradually squeeze the filling cavity 6, and the pressure will increase, thereby forcing air to be forced into the channel and discharged outward. After the connection is complete, the balance hole 15 is sealed with a plug 16, thus completing the installation.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A system for measuring the amount of mud removed from the blast furnace mud gun plug, characterized in that, It includes a pipe for conveying slurry and two sets of ultrasonic sensors installed on the pipe. Each set of ultrasonic sensors includes a transmitter and a receiver. The two sets of ultrasonic sensors are arranged symmetrically on both sides of the pipe. Each transmitter and receiver includes a body and a terminal connected to the body. The end of the body away from the terminal is the working end. The working end emits or receives ultrasonic rays. The working end is fixed to the outer wall of the pipe and there is a filling cavity between it and the outer wall of the pipe. The filling cavity is filled with coupling agent.

2. The blast furnace mud gun plugging mud volume measurement system as described in claim 1, characterized in that, The main body is fixedly connected to a mounting plate, which is fixedly connected to the outer wall of the pipe, and the filling cavity is set inside the mounting plate.

3. The blast furnace mud gun plugging mud volume measurement system as described in claim 2, characterized in that, The mounting plate is also equipped with an injection hole and an outlet hole that communicate with the filling cavity. The injection hole and the outlet hole are detachably connected to a sealing rod.

4. The blast furnace mud gun plugging mud volume measurement system as described in claim 3, characterized in that, The mounting plate is fixedly connected with sleeves that surround the injection hole and the outlet hole respectively. The plugging rod includes a first connecting section and a second connecting section. The first connecting section is threadedly connected to the injection hole and the outlet hole, and the second connecting section is threadedly connected to the sleeve.

5. The blast furnace mud gun plugging mud volume measurement system as described in claim 4, characterized in that, The second connecting section is also fixedly connected to a rotating section located outside the sleeve.

6. The blast furnace mud gun plugging mud volume measurement system as described in claim 5, characterized in that, There is an annular contact surface between the rotating section and the sleeve.

7. The blast furnace mud gun plugging mud volume measurement system as described in claim 6, characterized in that, The sleeve also has balance holes that connect the inside and outside.

8. The blast furnace mud gun plugging mud volume measurement system as described in claim 7, characterized in that, The first connecting section and the second connecting section are respectively provided with a first spiral and a second spiral. The first spiral extends from one end of the first connecting section to the other end, and the second spiral extends from the end near the first spiral to the balance hole.

Images