Safe sampling and temperature measuring device

Abstract

The utility model belongs to the technical field of metallurgical process, and provides a safe sampling and temperature measuring device which comprises a main rod, an auxiliary rod, a sampling device and a temperature measuring device, the lower portion of the main rod is detachably connected with the upper portion of the auxiliary rod, and the upper end of the main rod is connected with a steel wire rope which is connected with a main rod driving device through a pulley. The main rod driving device provides power to drive the main rod and the auxiliary rod to move up and down; the sampling device is installed at the lower end of the auxiliary rod and used for sampling liquid metal. The temperature measuring device is installed at the lower end of the auxiliary rod and used for measuring the temperature of the liquid metal. The liquid metal can be high-temperature liquid metal such as molten steel and molten iron. For example, sampling and temperature measurement of molten iron in the ladle are carried out at a molten iron pretreatment station (such as Kanbara reactor for short). The device is not only used for molten steel and molten iron, but also suitable for sampling and temperature measurement of other liquid metal. The device enables an operator to be far away from liquid metal, and safety guarantee is achieved; sampling and temperature measurement are carried out simultaneously with high efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of metallurgical process technology, and in particular relates to a safe sampling and temperature measurement device. Background Technology

[0002] The quality of steel products depends on the control of inclusions, temperature, and chemical composition uniformity throughout the steelmaking process. Steel samplers and thermometers are widely used in steelmaking processes such as electric furnaces, converters, continuous casting, and refining. Quickly extracted shaped steel samples are used for compositional analysis by a spectrometer, while rapid thermometers quickly measure the temperature of molten steel. Samplers and thermometers are used for rapid on-site sampling and temperature measurement, saving time while ensuring steel quality, thereby reducing scrap and improving economic efficiency.

[0003] Automatic sampling devices require robotic arms and supporting facilities, and thus occupy a certain amount of space. The converter platform is the main operating platform for converter smelting operations, including the front platform and the rear platform. The front platform is mainly used for loading molten steel scrap, while the rear platform is mainly used for tapping steel. Temperature measurement and sampling inside the ladle are carried out on the rear platform.

[0004] However, the sampling and temperature measurement devices currently used in converter furnaces are mostly manual, requiring operators to use long sampling rods and temperature measuring rods to measure the temperature of specific areas. This process is difficult, has a low success rate, and poses significant safety hazards. A new sampling and temperature measurement device is needed to replace manual sampling and temperature measurement, improving efficiency and reducing safety risks.

[0005] The existing technology has the following defects and shortcomings: manual sampling and temperature measurement requires operators to use long sampling rods and temperature measuring rods to measure the temperature of the area. The sampling and temperature measurement operation is difficult and needs to be carried out separately, which is inefficient and has a low success rate. At the same time, it poses a significant safety hazard. Currently available automatic sampling devices are complex in structure, expensive, and require a large area of ​​the furnace platform. Utility Model Content

[0006] This invention provides a safe sampling and temperature measurement device, which solves the problems of high difficulty, low efficiency and low success rate in sampling and temperature measurement operations.

[0007] To achieve the above objectives, this application provides the following technical solution:

[0008] A safe sampling and temperature measurement device includes: a main rod, a secondary rod, a sampling device, and a temperature measuring device;

[0009] The lower part of the main rod and the auxiliary rod are detachably connected. The upper end of the main rod is connected to a steel wire rope, which is connected to the main rod drive device via pulleys. The main rod drive device provides power to drive the main rod and auxiliary rod to move up and down. The sampling device is installed at the lower end of the auxiliary rod for sampling liquid metal. The temperature measuring device is installed at the lower end of the auxiliary rod for measuring the temperature of the liquid metal.

[0010] Furthermore, in the device as described, the main rod and the auxiliary rod are screwed together.

[0011] Furthermore, in the apparatus described above, the sampling device is a sampler; the temperature measuring device is a thermometer.

[0012] Furthermore, in the device described above, there are two pulleys, and the two pulleys are on the same horizontal line.

[0013] Furthermore, in the device described above, there is one auxiliary rod, and the sampling device and the temperature measuring device are installed on both sides of the auxiliary rod.

[0014] Furthermore, in the device described above, there are two auxiliary rods, which are symmetrically installed on both sides of the main rod; wherein, the sampling device is installed at the lower end of one auxiliary rod, and the temperature measuring device is installed at the lower end of the other auxiliary rod.

[0015] Furthermore, in the device as described, the sampling device and the temperature measuring device are located on the same horizontal line.

[0016] Furthermore, in the device as described, the sampler and the thermometer are immersed in the liquid metal to a depth ranging from 300 to 500 mm.

[0017] Furthermore, in the device described above, the main rod drive device is a winch; the temperature measuring device includes a thermocouple and a wireless transmitter connected together; the main rod and the auxiliary rod are perpendicular to the ground.

[0018] Furthermore, in the apparatus described above, the liquid metal is molten steel in the ladle after the converter furnace.

[0019] The technical solution provided in this application has the following beneficial effects:

[0020] The sampling and temperature measurement device provided in this application keeps operators away from liquid metal, ensuring safety; sampling and temperature measurement are performed simultaneously, resulting in high efficiency; the device is simple to manufacture and operate, can be made by steel plants themselves, is inexpensive, and is easy to install and maintain.

[0021] The sampling and temperature measurement device provided in this application uses the space above the furnace rear platform, which basically eliminates the need to add additional devices to the furnace rear platform, thus saving space. Attached Figure Description

[0022] Figure 1 A schematic diagram of a safe sampling and temperature measurement device provided in an embodiment of this application;

[0023] Figure 2 A top view of a safety sampling and temperature measurement device provided in an embodiment of this application;

[0024] The reference numerals in the attached diagram are as follows: Main pole 11, Main pole drive device 12, Sub-pole 21, Wire rope 31, Pulley 32, Steel ladle 51, Sampling device 61, Temperature measuring device 71. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] See attached document Figure 1 This application provides an embodiment of a safe sampling and temperature measurement device.

[0029] In short, the basic technical solution of this utility model is briefly described as follows:

[0030] A safe sampling and temperature measurement device includes: a main rod 11, a secondary rod 21, a sampling device 61, and a temperature measuring device 71;

[0031] The lower part of the main rod 11 and the upper part of the auxiliary rod 21 are detachably connected. A steel wire rope 31 is connected to the upper end of the main rod 11. The steel wire rope 31 is connected to the main rod drive device 12 through a pulley 32. The main rod drive device 12 provides power to drive the main rod 11 and the auxiliary rod 21 to move up and down. A sampling device 61 is installed at the lower end of the auxiliary rod 21 for sampling liquid metal. A temperature measuring device 71 is installed at the lower end of the auxiliary rod 21 for measuring the temperature of the liquid metal.

[0032] It should be noted that the liquid metal can be high-temperature liquid metals such as molten steel or molten iron. For example, the molten iron ladle is sampled and its temperature measured at the molten iron pretreatment station (such as the Kanbara reactor, abbreviated as KR). This device is not only used for molten steel and molten iron, but also applicable to sampling and measuring the temperature of other liquid metals. The following description uses molten steel in ladle 51 as an example.

[0033] This device keeps operators away from liquid metal, ensuring safety; sampling and temperature measurement are performed simultaneously, making it highly efficient; the device is simple to manufacture, steel plants can produce it themselves at low cost, and installation and maintenance are simple.

[0034] The following section details a safe sampling and temperature measurement device provided in this application. For example... Figure 1 As shown, the present application provides a safety sampling and temperature measurement device, which includes: the main rod 11, the auxiliary rod 21, the wire rope 31, the main rod drive device 12, the sampling device 61, and the temperature measuring device 71 mentioned in the above embodiments;

[0035] The main rod 11 is columnar, longer and heavier than the secondary rod 21. The main rod 11 is made of steel and is used to connect the wire rope 31 and the secondary rod 21. The cross-sectional diameter of the main rod 11 is larger than that of the secondary rod 21, and the weight of the main rod 11 is also greater than that of the secondary rod 21. The main rod 11 bears the buoyancy of the main liquid metal.

[0036] The auxiliary rod 21 is columnar and is used to install the sampling device 61 and the temperature measuring device 71. The diameter of the auxiliary rod 21 is smaller than that of the main rod 11, and the length of the auxiliary rod 21 can be adjusted according to actual conditions. The main rod 11 and the auxiliary rod 21 are perpendicular to the ground. The auxiliary rod 21 is made of steel. The lower part of the main rod 11 and the auxiliary rod 21 are detachably connected. The main rod 11 and the auxiliary rod 21 need to be firmly fixed. Specifically, the main rod 11 and the auxiliary rod 21 are fixed by a hoop or screw connection for easy replacement. Preferably, the main rod 11 and the auxiliary rod 21 are fixed by screw connection. The number of auxiliary rods 21 can be one or more, where "more" is a positive integer greater than 1, such as 2, 3, or 4.

[0037] In one specific embodiment, there is one auxiliary rod 21, and the sampling device 61 and the temperature measuring device 71 are installed on both sides of the auxiliary rod 21 (with the axis of the auxiliary rod 21 as the center). Preferably, the sampling device 61 and the temperature measuring device 71 are symmetrically installed on both sides of the auxiliary rod 21. In another specific embodiment, there are two auxiliary rods 21, and the two auxiliary rods 21 are installed on both sides of the main rod 11 (with the axis of the main rod 11 as the central axis). Preferably, the two auxiliary rods 21 are symmetrically installed on both sides of the main rod 11 (with the axis of the main rod 11 as the axis of symmetry). The sampling device 61 is installed at the lower end of one auxiliary rod 21 away from the main rod 11, and the temperature measuring device 71 is installed at the lower end of the other auxiliary rod 21 away from the main rod 11.

[0038] Wire rope 31 connects the main rod 11 and the main rod drive device 12. Wire rope 31 passes over pulley 32 of the pulley system, with one end connected to the top of the main rod 11 and the other end connected to the main rod drive device 12. The main rod 11, suspended by wire rope 31, is perpendicular to the ground. Pulley 32 changes the direction of force; the main rod drive device 12 drives the main rod 11 up and down via the pulley system and wire rope 31. The number of pulleys 32 can be one or more, with "more" being a positive integer greater than 1, such as 2, 3, or 4. Preferably, there are two pulleys 32, fixed above the main rod 11, and the two pulleys 32 are on the same horizontal line. It should be noted that the pulleys 32 are fixedly installed on the support frame on the top of the plant and do not occupy the converter platform.

[0039] The main pole drive device 12 provides power to the main pole 11 and the wire rope 31, thereby driving the main pole 11 to move up and down. The main pole drive device 12 can be a manual drive device or an electric drive device. When the main pole drive device 12 is an electric drive device, it also includes a controller. The controller is programmed to control the start and stop of the electric drive device and its operating mode, control the up and down movement of the main pole 11 and the auxiliary pole 21, and control the entry and exit of the sampling device 61 and the temperature measuring device 71 into and out of the liquid metal. Specifically, the main pole drive device 12 can be a winch. In one specific embodiment, the main pole drive device 12 is a manual winch, which controls the up and down movement of the main pole 11; in another specific embodiment, the main pole drive device 12 is an electric winch, which controls the up and down movement of the main pole 11; in yet another specific embodiment, the main pole drive device 12 is a hydraulic winch, which controls the up and down movement of the main pole 11.

[0040] The sampling device 61 is installed at the lower end of the auxiliary rod 21, away from the main rod 11, and is used for sampling liquid metal. The sampling device 61 is sleeved on the outside of the auxiliary rod 21. The connection between the sampling device 61 and the auxiliary rod 21 can be screwed, welded, or snap-fitted. In a specific embodiment, the sampling device 61 is a sampler, which is tubular and sleeved on the outside of the auxiliary rod 21. The lower end has a cavity. The sampler is used to sample liquid metal. As the sampler is immersed in the liquid metal, the liquid metal enters the cavity of the sampler. After the liquid metal cools, it becomes a sample block, which is used for analysis. Preferably, the sampling device 61 and the temperature measuring device 71 are located on the same horizontal line and are simultaneously immersed in the liquid metal to achieve the purpose of sampling and temperature measurement in one go.

[0041] A temperature measuring device 71 is installed at the lower end of the auxiliary rod 21, away from the main rod 11, and is used to measure the temperature of the liquid metal. The temperature measuring device 71 is sleeved on the outside of the auxiliary rod 21. The connection between the temperature measuring device 71 and the auxiliary rod 21 can be by screwing, welding, or snap-fit. In one specific embodiment, the temperature measuring device 71 is a thermometer used to measure the temperature of the liquid metal. Preferably, the sampler and the thermometer are located on the same horizontal line so that when the auxiliary rod 21 descends to a specified height, the sampler and the thermometer are simultaneously immersed in the liquid metal, achieving the purpose of sampling and temperature measurement in one go. This application adopts a structure of main rod 11 and auxiliary rod 21, mainly utilizing the space above the furnace rear platform, without occupying the space of the furnace rear platform, which is simple, convenient, and lower in cost.

[0042] In one specific embodiment, the temperature measuring device 71 employs a wireless temperature measuring device, which includes a thermocouple and a wireless transmitter connected together. The thermocouple can be an armored thermocouple, an insert-type K-couple, or an armored type K-couple; preferably, the thermocouple is an armored type K-couple.

[0043] In use, the sampling device 61 and the temperature measuring device 71 are respectively installed on the auxiliary rod 21. An opening is made on the platform behind the furnace, and the ladle 51 is placed under the opening. The main rod drive device 12 is activated, driving the main rod 11 and the auxiliary rod 21 downwards, immersing the sampler and temperature measuring device in the liquid metal. The immersion depth of the sampler and temperature measuring device in the liquid metal is 300-500mm. After the temperature measuring device detects the temperature of the liquid metal, the main rod drive device 12 drives the main rod 11 and the auxiliary rod 21 upwards, raising the sampling device 61 to a suitable position. The sampling device 61 is then removed, and the sample block in the sampling device 61 is sent to the analysis chamber for composition analysis. When the main and auxiliary rods become deformed, they must be replaced in time to ensure that the main rod 11 and the auxiliary rod 21 are perpendicular to the ground. Maintenance is simple and convenient. This device replaces the manual operation of inserting a sampling rod or temperature measuring rod into the liquid metal for sampling and temperature measurement.

[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features of the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] For those skilled in the art, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. It is obvious that this invention is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, all embodiments are merely illustrative and not exhaustive, and should be considered exemplary and non-limiting. The scope of this invention is defined by the appended claims rather than the foregoing description, and therefore all changes falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims. All changes within the scope of this invention or its equivalents are included in this invention.

Claims

1. A device for safe sampling and temperature measurement, characterized in that, include: Main rod, secondary rod, sampling device, temperature measuring device; The lower part of the main rod and the auxiliary rod are detachably connected. The upper end of the main rod is connected to a steel wire rope, which is connected to the main rod drive device via pulleys. The main rod drive device provides power to drive the main rod and auxiliary rod to move up and down. The sampling device is installed at the lower end of the auxiliary rod for sampling liquid metal. The temperature measuring device is installed at the lower end of the auxiliary rod for measuring the temperature of the liquid metal.

2. The apparatus according to claim 1, characterized in that, The main rod and the auxiliary rod are screwed together for fixation.

3. The apparatus according to claim 1, characterized in that, The sampling device is a sampler; the temperature measuring device is a temperature measuring device.

4. The apparatus according to claim 1, characterized in that, There are two pulleys, and the two pulleys are on the same horizontal line.

5. The apparatus according to claim 1, characterized in that, The number of auxiliary rods is one, and the sampling device and the temperature measuring device are installed on both sides of the auxiliary rod.

6. The apparatus according to claim 1, characterized in that, There are two auxiliary rods, which are symmetrically installed on both sides of the main rod. The sampling device is installed at the lower end of one of the auxiliary rods, and the temperature measuring device is installed at the lower end of the other auxiliary rod.

7. The apparatus according to claim 1, characterized in that, The sampling device and the temperature measuring device are located on the same horizontal line.

8. The apparatus according to claim 3, characterized in that, The sampler and the thermometer are immersed in the liquid metal to a depth of 300-500 mm.

9. The apparatus according to claim 1, characterized in that, The main rod drive device is a winch; The temperature measuring device includes a thermocouple and a wireless transmitter connected together; The main rod and the secondary rod are perpendicular to the ground.

10. The apparatus according to claim 1, characterized in that, The liquid metal is molten steel in the ladle after the converter furnace.

Images