A blast furnace in-furnace center gas flow detection device

Abstract

The utility model relates to air current detection device technical field, and disclose a blast furnace inhouse center air current detection device, include: limit box and blast furnace group, the limit box is assembled in the outside of blast furnace group, the inner chamber of limit box is assembled with limit block, the front of limit box is equipped with horizontal groove, the back of horizontal groove is equipped with annular groove, the inner chamber of annular groove upper and lower ends is equipped with limit slot, the inside of limit box is inserted with patch thermocouple, the outside of limit box is inserted with limit mechanism, the limit mechanism includes the type arm, the type arm is inserted in the outside of limit box. This blast furnace inhouse center air current detection device, through the type arm, the arm, the arm, the horizontal groove, the annular groove and the limit slot of adding, after the assembly of patch thermocouple is completed, the position of patch thermocouple is fixed quickly, improves the assembly speed of patch thermocouple, to improve the maintenance and unloading speed of patch thermocouple.

Description

Technical Field

[0001] This utility model relates to the technical field of airflow detection devices, specifically a central airflow detection device inside a blast furnace. Background Technology

[0002] The strength of the central airflow within a blast furnace during daily production directly impacts its operational status and influences key performance indicators. Changes in external factors can alter the central airflow, potentially leading to malfunctions and significant degradation of blast furnace performance. Therefore, stable control of the central airflow is crucial for blast furnace operation. While most blast furnaces are equipped with in-furnace video monitoring and some have cross-type thermometers to assess central airflow changes, some still lack these devices. Furthermore, damaged cross-type thermometers or dust accumulation / damage to in-furnace cameras prevent operators from promptly and effectively monitoring central airflow strength. This hinders timely adjustments, potentially causing anything from deteriorating performance to severe fluctuations in furnace conditions. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a blast furnace center airflow detection device to solve the technical problem that blast furnace operators cannot timely and effectively grasp the changes in the strength of the blast furnace center airflow, and cannot make timely and effective adjustments to the blast furnace, which may lead to a decline in blast furnace indicators or even fluctuations in furnace conditions.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a blast furnace in-furnace central airflow detection device, comprising: a limiting box and a blast furnace group, the limiting box being assembled on the outside of the blast furnace group, the inner cavity of the limiting box being equipped with a limiting block, the front of the limiting box being provided with a transverse groove, the back of the transverse groove being provided with an annular groove, the upper and lower ends of the inner cavity of the annular groove being provided with limiting grooves, a patch thermocouple being inserted inside the limiting box, and a limiting mechanism being inserted outside the limiting box.

[0007] The limiting mechanism includes a C-shaped arm, which is inserted into the outside of the limiting box. A rotating arm is mounted on the front of the C-shaped arm via a bearing seat, and locking blocks are connected to both the left and right sides of the rotating arm.

[0008] Preferably, the patch thermocouple is equipped with a handle, and the handle is equipped with a rubber sleeve, so that the operator can easily drive the patch thermocouple to move.

[0009] Preferably, each of the limiting boxes is equipped with a locking frame on its exterior. The locking frame is connected to the blast furnace group by bolts, and the locking frame facilitates fixing the limiting box to the exterior of the blast furnace group.

[0010] Preferably, the front of the rotating arm is equipped with a torsion wheel, and the front of the torsion wheel is provided with anti-slip texture. The torsion wheel facilitates the operator to drive the rotating arm to rotate, and the anti-slip texture facilitates the operator to drive the torsion wheel to rotate.

[0011] Preferably, springs are connected to both sides of the inner cavity of the limiting box. The springs contact the C-shaped arm, and the springs facilitate the contact of the C-shaped arm to allow the locking block to be inserted into the limiting groove, thereby reinforcing the position of the rotating arm.

[0012] Preferably, the front of the patch thermocouple is equipped with a communication module, and the bottom of the patch thermocouple is attached to the outside of the blast furnace group. The communication module facilitates the transmission of temperature data detected by the patch thermocouple.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a blast furnace in-furnace central airflow detection device, which has the following beneficial effects:

[0015] This blast furnace central airflow detection device uses attached thermocouples to detect the temperature outside the blast furnace group. By observing changes in the external temperature, it determines the strength of the central airflow inside the blast furnace group, replacing the traditional cross-shaped temperature gun for temperature measurement. This improves the speed and stability of the device's judgment. Furthermore, the addition of a C-shaped arm, rotating arm, horizontal groove, annular groove, and limiting groove quickly fixes the position of the attached thermocouple after assembly, increasing the assembly speed and thus improving the speed of maintenance and disassembly of the attached thermocouple. Attached Figure Description

[0016] Figure 1 This is a front view of the present utility model;

[0017] Figure 2 This is a schematic diagram of the external shape of the limiting box of this utility model;

[0018] Figure 3 This is a partial sectional view of the limiting box of this utility model;

[0019] Figure 4 This is a cross-sectional view of the back of the transverse groove of this utility model;

[0020] Figure 5 This is an external schematic diagram of the limiting mechanism of this utility model.

[0021] In the diagram: 1. Limiting box; 11. Locking frame; 12. Limiting block; 2. Horizontal groove; 21. Annular groove; 22. Limiting groove; 3. Patch thermocouple; 31. Handle; 4. Limiting mechanism; 41. C-shaped arm; 42. Rotating arm; 43. Locking block; 44. Torsion wheel; 45. Spring; 5. Blast furnace group. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides a technical solution; please refer to [link / reference]. Figure 1 and Figure 2 A blast furnace in-furnace central airflow detection device includes: a limiting box 1 and a blast furnace group 5. The limiting box 1 is assembled on the outside of the blast furnace group 5. A limiting block 12 is assembled in the inner cavity of the limiting box 1. A horizontal groove 2 is opened on the front of the limiting box 1. An annular groove 21 is opened on the back of the horizontal groove 2. Limiting grooves 22 are opened at the upper and lower ends of the inner cavity of the annular groove 21. A patch thermocouple 3 is inserted inside the limiting box 1. A limiting mechanism 4 is inserted outside the limiting box 1.

[0024] Blast furnace group 5 is a common type of blast furnace in the prior art. The limiting box 1 is installed on the outside of the flange steel ring between blast furnace group 5 and airtight box, and there are at least three sets of limiting boxes 1. The limiting box 1 can fix the patch thermocouple 3, and the limiting block 12 can support the position of the patch thermocouple 3. The cooperation of the annular groove 21, the limiting groove 22 and the transverse groove 2 makes it convenient to insert the limiting mechanism 4 into the inside of the limiting box 1 to lock the position of the patch thermocouple 3.

[0025] Please see Figure 3 and Figure 4 as well as Figure 5 The limiting mechanism 4 includes a chamfered arm 41, which is inserted into the outside of the limiting box 1. A rotating arm 42 is mounted on the front of the chamfered arm 41 via a bearing seat, and a locking block 43 is connected to both the left and right sides of the rotating arm 42.

[0026] The C-shaped arm 41 can be inserted into the transverse groove 2 to fix the position of the patch thermocouple 3. The cooperation of the rotating arm 42 and the locking block 43 can lock the position of the C-shaped arm 41.

[0027] The surface mount thermocouple 3 is equipped with a handle 31, and the handle 31 is equipped with a rubber sleeve. The handle 31 makes it convenient for the operator to drive the surface mount thermocouple 3 to move. The limit box 1 is equipped with a locking frame 11 on its exterior. The locking frame 11 is connected to the blast furnace group 5 by bolts. The locking frame 11 makes it convenient to fix the limit box 1 to the exterior of the blast furnace group 5.

[0028] The front of the rotating arm 42 is equipped with a torsion wheel 44, which has anti-slip texture. The torsion wheel 44 facilitates the operation of the rotating arm 42 by the operator. The anti-slip texture facilitates the operation of the torsion wheel 44 by the operator. Springs 45 are connected to both sides of the inner cavity of the limit box 1. The springs 45 contact the C-shaped arm 41 and facilitate the contact of the C-shaped arm 41, so that the locking block 43 is inserted into the inner cavity of the limit groove 22 to reinforce the position of the rotating arm 42. The front of the patch thermocouple 3 is equipped with a communication module. The bottom of the patch thermocouple 3 is attached to the outside of the blast furnace group 5. The communication module facilitates the transmission of temperature data detected by the patch thermocouple 3.

[0029] This scheme fixes the limiting box 1 to the outside of the blast furnace group 5 through the locking frame 11, inserts the patch thermocouple 3 into the inside of the limiting box 1, and inserts the limiting mechanism 4 into the inner cavity of the transverse groove 2. Through the cooperation of the C-shaped arm 41 and the limiting block 12, the position of the patch thermocouple 3 is fixed. Rotating the rotating arm 42 makes the rotating arm 42 and the locking block 43 lock into the inner cavity of the annular groove 21 and the limiting groove 22, thus completing the fixation of the limiting mechanism 4. The patch thermocouple 3 is used to detect the blast furnace group 5, and the temperature data detected by the patch thermocouple 3 is connected to the operating computer in the foreman's room. The computer generates a temperature trend graph and displays the temperature data displayed by the patch thermocouple 3 on the computer to determine the change trend of the external temperature of the blast furnace group 5, thereby realizing the determination of the change in the strength of the central airflow inside the blast furnace group 5.

[0030] The external temperature of the blast furnace group 5 is detected by the added patch thermocouple 3. The change in the external temperature of the blast furnace group 5 is used to determine the change in the strength of the central airflow inside the blast furnace group 5. This replaces the traditional cross-shaped temperature measuring gun for temperature measurement, thereby improving the speed and stability of the device's judgment. At the same time, the added C-shaped arm 41, rotating arm 42, horizontal groove 2, annular groove 21 and limiting groove 22 quickly fix the position of the patch thermocouple 3 after it is assembled, improving the assembly speed of the patch thermocouple 3, thereby improving the speed of maintenance and disassembly of the patch thermocouple 3.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the central airflow inside a blast furnace, comprising: The limiting box (1) and the blast furnace group (5) are characterized in that: the limiting box (1) is equipped with a limiting block (12) in the inner cavity of the limiting box (1), a horizontal groove (2) is provided on the front side of the limiting box (1), an annular groove (21) is provided on the back side of the horizontal groove (2), and limiting grooves (22) are provided at the upper and lower ends of the inner cavity of the annular groove (21), a patch thermocouple (3) is inserted inside the limiting box (1), and a limiting mechanism (4) is inserted outside the limiting box (1). The limiting mechanism (4) includes a U-shaped arm (41), which is inserted into the outside of the limiting box (1). A rotating arm (42) is mounted on the front of the U-shaped arm (41) via a bearing seat. A locking block (43) is connected to both the left and right sides of the rotating arm (42).

2. The blast furnace in-hearth airflow detection device according to claim 1, characterized in that: The patch thermocouple (3) is externally fitted with a handle (31), and the handle (31) is externally fitted with a rubber sleeve.

3. The blast furnace in-hearth airflow detection device according to claim 1, characterized in that: Each of the limiting boxes (1) is equipped with a locking frame (11), which is connected to the blast furnace group (5) by bolts.

4. The blast furnace in-furnace center airflow detection device according to claim 1, characterized in that: The front of the rotating arm (42) is fitted with a torsion wheel (44), and the front of the torsion wheel (44) is provided with anti-slip texture.

5. The blast furnace in-hearth airflow detection device according to claim 1, characterized in that: Springs (45) are connected to both sides of the inner cavity of the limiting box (1), and the springs (45) are in contact with the U-shaped arm (41).

6. The blast furnace in-hearth airflow detection device according to claim 1, characterized in that: The front of the patch thermocouple (3) is equipped with a communication module, and the bottom of the patch thermocouple (3) is attached to the outside of the blast furnace group (5).

Images