Mud discharge amount detection device and hydraulic clay gun

Abstract

The utility model discloses a mud output detection device and a hydraulic mud gun, which are applied to the hydraulic mud gun, and the hydraulic mud gun comprises a mud cylinder, an oil cylinder and a piston rod. The mud discharge amount detection device comprises a plurality of ultrasonic flow meters which are respectively connected with the outer side of an oil pipe of the hydraulic mud gun and are used for measuring the amount of oil input to an oil cylinder through the oil pipe; and the processor is electrically connected with the plurality of ultrasonic flowmeters and is used for receiving the oil quantity information sent by the plurality of ultrasonic waves and determining the sludge discharge quantity of the sludge cylinder according to the oil quantity information. According to the mud output amount detection device and the hydraulic mud gun, the ultrasonic flowmeter is arranged on the outer side of the oil pipe to measure the amount of oil input into the oil cylinder of the hydraulic mud gun through the oil pipe, and the mud output amount detection device is simple and reasonable in structure and can be conveniently disassembled and assembled without stopping work and production. On the second aspect, online measurement of the oil quantity of the oil pipe is achieved through a plurality of ultrasonic flow meters, the processor integrates the measured oil quantity information, and the mud outlet quantity of the hydraulic mud gun is accurately calculated.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace gunite measurement, in particular to a mud output detection device and a hydraulic mud gun. Background Art

[0002] When the iron mud gun in front of the blast furnace is injecting mud, the mud injection volume is determined by measuring the flow rate of the hydraulic pipeline. Currently, the flow rate measurement of the hydraulic pipeline is mainly achieved by installing a pipe section electromagnetic flowmeter or an insertion ultrasonic flowmeter. The existing flow detectors need to be replaced and inspected regularly. The installation and commissioning of the flowmeter require the production to stop, and the interruption of the production process will seriously threaten the smooth and stable operation of the production. Content of the Utility Model

[0003] In view of the above problems, this application is proposed to provide a mud output detection device and a hydraulic mud gun that overcome the above problems or at least partially solve the above problems.

[0004] In the first aspect, a mud output detection device is provided, which is applied to a hydraulic mud gun. The hydraulic mud gun includes a mud cylinder, an oil cylinder, and a piston rod. One end of the piston rod is connected to a first piston in the mud cylinder, and the other end of the piston rod is connected to a second piston in the oil cylinder. The end of the oil cylinder away from the piston rod is connected to a hydraulic oil source through an oil pipe; the mud output detection device includes:

[0005] A plurality of ultrasonic flowmeters, respectively connected to the outer side of the oil pipe, for measuring the amount of oil input into the oil cylinder through the oil pipe;

[0006] A processor, electrically connected to the plurality of ultrasonic flowmeters, for receiving the oil amount information sent by the plurality of ultrasonic flowmeters and determining the mud output of the mud cylinder according to the oil amount information.

[0007] Optionally, it further includes a mounting seat, which is fixed to the outside of the oil pipe. The mounting seat has a plurality of mounting grooves, and the plurality of ultrasonic flowmeters are respectively connected to the mounting grooves in one-to-one correspondence.

[0008] Optionally, the plurality of mounting grooves are circumferentially and evenly distributed on the mounting seat.

[0009] Optionally, the ultrasonic flowmeter includes: a signal transmitting port and a signal receiving port;

[0010] The signal transmitting port and the signal receiving port are axially spaced apart on the outside of the oil pipe. The signal transmitting port faces the oil pipe and is used for transmitting ultrasonic pulse signals to the oil pipe; the signal receiving port faces the oil pipe and is used for receiving ultrasonic pulse signals.

[0011] Optionally, the directions of the ultrasonic pulse signals of at least two ultrasonic flowmeters are opposite.

[0012] Optionally, it further includes a display screen, which is arranged outside the mud cylinder and electrically connected to the processor, and is used to receive the mud output information of the mud cylinder sent by the processor and display the mud output of the mud cylinder.

[0013] In a second aspect, a hydraulic mud gun is provided, which includes a mud cylinder, an oil cylinder, a piston rod, and the mud output detection device of the first aspect.

[0014] The technical solution provided by this application has at least the following technical effects or advantages:

[0015] For the mud output detection device and the hydraulic mud gun provided by this application, in the first aspect, the ultrasonic flowmeter is arranged outside the oil pipe to measure the oil volume input into the oil cylinder of the hydraulic mud gun through the oil pipe. Its structure is simple and reasonable, and it can be easily disassembled and assembled without stopping production. In the second aspect, the online measurement of the oil volume in the oil pipe is realized through multiple ultrasonic flowmeters, and the processor integrates the measured oil volume information to accurately calculate the mud output of the hydraulic mud gun.

[0016] The above description is only an overview of the technical solution of this application. In order to be able to understand the technical means of this application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of this application more obvious and understandable, the specific embodiments of this application are specifically given below. Description of the Drawings

[0017] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of this application. And throughout the drawings, the same reference symbols are used to represent the same components. In the drawings:

[0018] Figure 1 It is the structure diagram of the mud output detection device in the embodiment of this application;

[0019] Figure 2 It is the installation structure diagram of the ultrasonic flowmeter in the embodiment of this application;

[0020] Figure 3 It is the schematic diagram of the ultrasonic flowmeter in the embodiment of this application. Detailed Embodiments

[0021] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the drawings.

[0022] Various structural schematic diagrams according to embodiments of the present application are shown in the accompanying drawings. These figures are not drawn to scale, where for the purpose of clear expression, certain details are enlarged and some details may be omitted. The shapes of various regions and layers shown in the figures, as well as their relative sizes and positional relationships, are merely exemplary and may deviate in practice due to manufacturing tolerances or technical limitations. Those skilled in the art can additionally design regions / layers with different shapes, sizes, and relative positions according to actual requirements.

[0023] To better understand the above technical solutions, the above technical solutions will be described in detail below in combination with specific embodiments. It should be understood that the embodiments of the present disclosure and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application, rather than limitations on the technical solutions of the present application. Without conflict, the technical features in the embodiments of the present application and the embodiments can be combined with each other.

[0024] Currently, the measurement of the mud discharge volume of the mud gun in front of the furnace is a difficult problem. The traditional measurement of the liquid flow rate in the pipeline mainly relies on installing a pipe-section electromagnetic flowmeter or an inserted ultrasonic flowmeter to achieve flow measurement. Currently, the mainstream pipeline liquid flow rate cannot be installed and debugged online, and the production process cannot be interrupted at any time during production, which seriously threatens the smooth operation of production. In view of the current scenario where the medium cannot be interrupted and pipeline flow measurement is required, the flow measurement problem is solved online.

[0025] For the current measurement of the liquid flow rate in the pipeline, an electromagnetic flowmeter or an ultrasonic flowmeter is required. First, it needs to be installed during shutdown and maintenance. Second, it is necessary to truncate the pipeline or open holes in the pipeline, which affects the normal operation of the liquid medium.

[0026] In view of this, the present application provides a mud discharge detection device, which is applied to a hydraulic mud gun, as Figure 1 shown. The hydraulic mud gun includes a mud cylinder 101, an oil cylinder 102, a piston rod 103. One end of the piston rod 103 is connected to a first piston 104 in the mud cylinder 101, and the other end of the piston rod 103 is connected to a second piston 105 in the oil cylinder 102. The end of the oil cylinder 102 away from the piston rod 103 is connected to a hydraulic oil source through an oil pipe 106. As Figure 2 shown, the mud discharge detection device includes:

[0027] A plurality of ultrasonic flowmeters 107 are respectively connected to the outside of the oil pipe 106 and are used to measure the amount of oil input into the oil cylinder 102 through the oil pipe 106. The plurality of ultrasonic flowmeters 107 measure the amount of oil in the oil pipe 106 from multiple directions, which is convenient for eliminating measurement errors caused by measurement temperature and measurement dirt, and accurately calculating the mud discharge volume of the mud cylinder 101.

[0028] The processor 108 is electrically connected to multiple ultrasonic flowmeters 107, and is configured to receive the oil quantity information transmitted by the multiple ultrasounds, and determine the mud discharge amount of the mud cylinder 101 according to the oil quantity information. The processor 108 measures the flow rate in the oil pipe 106 accurately based on the time difference of the detection signals of the multiple ultrasonic flowmeters 107, and can equivalently substitute it for the usage amount of the gun mud.

[0029] The mud discharge amount detection device provided by the embodiment of the present application does not require pipe cutting and can measure the flow rate of hydraulic oil without stopping the medium, realizing non-contact and non-destructive pipeline measurement, without affecting the original state of production. It is convenient to install, the measurement is stable, which not only improves the measurement efficiency, but also greatly reduces the construction volume, maintenance and installation costs, and improves the accuracy and convenience of measuring the tapping and mud ramming amount in front of the furnace.

[0030] The mud discharge amount detection device provided by the embodiment of the present application has a simple and reasonable structure. Its disassembly and installation do not cut off the pipeline, do not stop the medium, and do not perform pipeline welding and hole opening construction. By installing the external ultrasonic flowmeter 107 outside the pipeline, it solves the thorny problems of unable to cut off the pipe and unable to perform on-line construction, reduces the construction cost, reduces the loss of interrupted medium, improves the on-line installation and processing efficiency, and improves the quick, non-destructive and on-line level of measuring the flow rate of the mud gun hydraulic pipeline.

[0031] In some alternative embodiments, as Figure 2 shown, the mud discharge amount detection device further includes a mounting seat 109. The mounting seat 109 is fixed to the outside of the oil pipe 106. The mounting seat 109 has a plurality of mounting grooves, and the multiple ultrasonic flowmeters 107 are connected to the mounting grooves in a one-to-one correspondence. The ultrasonic flowmeter 107 is installed through the mounting seat 109. The multiple ultrasonic flowmeters 107 are conveniently installed outside the oil pipe 106 through the mounting seat 109 without the need to cut off the oil pipe 106 for construction. That is to say, it avoids shutdown, avoids stopping the medium, and avoids cutting off the pipeline. It improves the job search efficiency and reduces the investment and construction costs.

[0032] In some alternative embodiments, the plurality of mounting grooves are circumferentially distributed on the mounting seat 109. The plurality of mounting grooves correspond to multiple test position points of the oil pipe 106. By flexibly installing the ultrasonic flowmeter 107 in the mounting groove, convenient measurement of multiple points is realized.

[0033] In some alternative embodiments, as Figure 3 shown, the ultrasonic flowmeter 107 includes: a signal transmitting port 1071 and a signal receiving port 1072;

[0034] The signal transmitting port 1071 and the signal receiving port 1072 are axially spaced outside the oil pipe 106. The signal transmitting port 1071 faces the oil pipe 106 and is used to transmit ultrasonic pulse signals to the oil pipe 106. The signal receiving port 1072 faces the oil pipe 106 and is used to receive ultrasonic pulse signals.

[0035] In some alternative embodiments, the directions of the ultrasonic pulse signals of at least two ultrasonic flow meters 107 are opposite.

[0036] The ultrasonic flow meter 107 calculates the flow rate by using the ultrasonic propagation time or flight time. Two ultrasonic flow meters 107 respectively emit an ultrasonic wave. The two ultrasonic waves cross the hydraulic oil in the oil pipe 106 at a set inclination angle. When the ultrasonic wave traveling through the hydraulic oil is opposite to the flow direction of the hydraulic oil, the propagation speed will slow down. On the contrary, when it is the same as the flow direction of the hydraulic oil, the propagation speed will speed up.

[0037] Exemplarily, let the time interval between the signal transmission and reception of the ultrasonic wave in the same direction as the flow direction of the hydraulic oil be T1, which satisfies the formula The time interval between the signal transmission and reception of the ultrasonic wave opposite to the flow direction of the hydraulic oil is T2, which satisfies the formula The time difference between the two satisfies the formula The flow rate of the hydraulic oil in the pipeline satisfies the formula Q = Ke * t.

[0038] Therefore, as long as the processor 108 receives the time when each signal receiving port 1072 of the two ultrasonic flow meters 107 receives the ultrasonic signal, it can calculate the flow rate of the hydraulic oil in the pipeline by substituting the time difference between the two time intervals into the above formula, that is, obtain the amount of oil input into the oil cylinder 102 through the oil pipe 106, and then calculate the specific mud output of the mud cylinder 101 according to the preset conversion relationship between the flow rate of the hydraulic oil and the mud output of the mud cylinder 101.

[0039] It can be understood that using the ultrasonic flow meter 107 to measure the hydraulic oil in the oil pipe 106 has the advantages of no pressure loss and the type that can be detected from outside the pipeline. However, the oil pipe 106 needs to be a relatively long straight pipe, and it will cause malfunctions for hydraulic oil containing large solids and cannot be tested when there are many bubbles. Ultrasonic reception / transmission is achieved through a transmissive structure to achieve high power. Even if the pipeline diameter is large, there is still sufficient reception intensity for stable detection. For the flow direction of the hydraulic oil, ultrasonic waves are transmitted upward and downward. The above method can offset the influence of environmental changes and stably detect the flow rate. Measurement errors caused by temperature and fouling are eliminated through ultrasonic signals.

[0040] In some alternative embodiments, still as Figure 1As shown, the sludge discharge amount detection device further includes 110, which is arranged outside the sludge tank 101 and electrically connected to the processor 108, and is used to receive the sludge discharge amount information of the sludge tank 101 sent by the processor 108 and display the sludge discharge amount of the sludge tank 101.

[0041] Based on the same inventive concept, the embodiment of the present application further provides a hydraulic clay gun, still as Figure 1 shown, the hydraulic clay gun includes a sludge tank 101, an oil cylinder 102, a piston rod 103 and the sludge discharge amount detection device of the above embodiment.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0043] In the specification provided here, a large number of specific details are described. However, it can be understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known methods, structures and technologies are not shown in detail so as not to obscure the understanding of this specification.

Claims

1. A mud discharge detection device, characterized in that: Applied to a hydraulic mud gun, the hydraulic mud gun comprises a mud cylinder, an oil cylinder, and a piston rod, one end of the piston rod is connected to a first piston in the mud cylinder, the other end of the piston rod is connected to a second piston in the oil cylinder, and one end of the oil cylinder away from the piston rod is connected to a hydraulic oil source through an oil pipe; the mud output detection device comprises: A plurality of ultrasonic flow meters are respectively connected to the outer sides of the oil pipes; A processor is electrically connected to the plurality of ultrasonic flow meters.

2. The mud discharge detection device according to claim 1, characterized in that: It also includes a mounting seat, which is fixed to the outside of the oil pipe. The mounting seat has a plurality of mounting grooves, and the plurality of ultrasonic flow meters are connected to the mounting grooves in a one-to-one correspondence.

3. The mud discharge detection device according to claim 2, characterized in that: The plurality of mounting grooves are evenly distributed on the mounting seat in a circumferential direction.

4. The mud discharge detection device according to claim 1, characterized in that: The ultrasonic flow meter comprises: a signal transmitting port and a signal receiving port; The signal transmitting port and the signal receiving port are axially spaced apart and arranged outside the oil pipe. The signal transmitting port is opposite to the oil pipe and is used to transmit an ultrasonic pulse signal to the oil pipe. The signal receiving port is opposite to the oil pipe and is used to receive the ultrasonic pulse signal.

5. The mud discharge detection device according to claim 4, characterized in that: The directions of the ultrasonic pulse signals of at least two of the ultrasonic flow meters are opposite.

6. The mud discharge detection device according to claim 1, characterized in that: The device also includes a display screen, which is arranged outside the mud cylinder and electrically connected to the processor, and is used to receive the mud output information of the mud cylinder sent by the processor and display the mud output of the mud cylinder.

7. A hydraulic mud gun, characterized in that: It comprises a mud cylinder, an oil cylinder, a piston rod and a mud output detection device as claimed in any one of claims 1 to 6.

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