Molten iron sampling device of iron-making blast furnace

Abstract

The utility model belongs to the field of molten iron sampling, and particularly relates to a molten iron sampling device of an ironmaking blast furnace. The device comprises a vertically-arranged sampling pipe, a plurality of partition plates are horizontally fixed in the sampling pipe from top to bottom at intervals, a plurality of inlet and outlet holes are formed in the side wall of the sampling pipe corresponding to all storage bins, a plurality of mounting rings capable of moving and rotating along the sampling pipe are arranged on the sampling pipe in a sleeving mode, and a sealing plate is vertically arranged on one side of the sampling pipe. The sealing plate is fixed to all the mounting rings, an inner rod is vertically fixed to the uppermost partition plate, the inner rod is independently sleeved with an outer pipe, a connecting rod is fixed between the outer pipe and the sealing plate, a limiting assembly is arranged between the outer pipe and the inner rod, and a locking assembly is arranged between the outer pipe and the inner rod. The molten iron sampling device can sample molten iron at different depths in the iron-making blast furnace, pour out the molten iron in all the storage bins in sequence, and separately cool and store the molten iron, so that the molten iron in different storage bins is prevented from being fused to influence a detection result.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of molten iron sampling, especially relate to a kind of molten iron sampling device of iron-making blast furnace. BACKGROUND

[0002] In the process of ironmaking, the proportioning of raw materials has corresponding requirements, and different proportions will have different results, so it is necessary to sample the molten iron, detect the sampling and adjust the batching to achieve the appropriate proportioning. In sampling, a sampler is often used, and a sampling spoon is the most commonly used sampling tool in molten iron sampling. The existing sampling spoon is open during use, and the purity of molten iron at different positions inside the iron-making blast furnace is different, so the sampling spoon cannot simultaneously sample molten iron at different depths inside the iron-making blast furnace, thereby affecting the detection accuracy of the molten iron. SUMMARY

[0003] The utility model aims to provide a kind of molten iron sampling device of iron-making blast furnace, can sample molten iron at different depths inside the iron-making blast furnace.

[0004] The molten iron sampling device of iron-making blast furnace includes a vertically arranged sampling pipe, a plurality of partitions for dividing the internal space into multiple storage compartments are fixed in the sampling pipe from top to bottom, a plurality of access holes are formed in the side wall of the sampling pipe corresponding to all storage compartments, a plurality of mounting rings movable along and rotatable around the sampling pipe are sleeved on the sampling pipe, a sealing plate for plugging all access holes is vertically arranged on one side of the sampling pipe, the sealing plate is fixed with all mounting rings, an inner rod is vertically fixed on the uppermost partition, an outer pipe is independently sleeved on the inner rod, a connecting rod is fixed between the outer pipe and the sealing plate, a limiting assembly for limiting the movement stroke and rotation angle of the sealing plate is arranged between the outer pipe and the inner rod, and a locking assembly for locking the moved outer pipe is arranged between the outer pipe and the inner rod.

[0005] Further, the limiting assembly includes a moving column fixed horizontally on the side wall of the inner rod, and a guide groove in "L" shape structure is formed in the side wall of the outer pipe, and the moving column is independently inserted into the guide groove.

[0006] Further, the locking assembly includes a top plate fixed on the top of the inner rod, a plurality of positioning holes passing through the inner and outer pipes and evenly distributed along the length direction of the outer pipe are formed in the side wall of the outer pipe, an installation hole is formed in the side wall of the inner rod, a positioning pin in "T" shape structure is independently inserted into the installation hole, a spring is inserted into the installation hole, the spring is located between the positioning pin and the bottom of the installation hole, and one end of the positioning pin is inserted into one of the aligned positioning holes.

[0007] Further, a handle is fixed on the top plate, and a pull rod is fixed on the upper end of the outer pipe.

[0008] Further, the pull rod is in a circular arc structure.

[0009] Further, the connecting rod is in an L-shaped structure, one end of the horizontal connecting rod is fixed on the outer tube, and the other end of the vertical connecting rod is fixed on the sealing plate.

[0010] Further, the bottom of the sampling tube is fixed with a conical head.

[0011] Compared with the prior art, the utility model has the advantages of the following:

[0012] The sampling tube is inserted into the molten iron, after the sampling tube is inserted into the appropriate position, the outer tube is rotated clockwise, the outer tube drives the sealing plate to rotate clockwise through the connecting rod, all the inlet and outlet holes are exposed, the molten iron passes through each inlet and outlet hole and enters the corresponding storage bin, the storage bin on the sampling tube is convenient for sampling the molten iron of different depths, thereby facilitating the detection of the molten iron of different depths; after all the storage bins are filled, the outer tube is rotated counterclockwise, the sealing plate is rotated counterclockwise, all the inlet and outlet holes are blocked and sealed, the molten iron is prevented from flowing out, the outer tube is locked through the locking assembly after rotation, the sealing plate is locked, the inner rod is pulled upwards, and the sampling tube is taken out from the molten iron; when the molten iron is poured out, the outer tube is pushed downwards, the outer tube drives the sealing plate to move downwards through the connecting rod, the inlet and outlet holes are exposed in sequence, the outer tube is locked through the locking assembly after moving, and the sealing plate is locked, so that the remaining inlet and outlet holes are prevented from being opened, the molten iron in all the storage bins is poured out in order, and is cooled and stored separately, so that the molten iron in different storage bins is prevented from being fused and affecting the detection result. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the utility model;

[0014] Figure 2 It is a left view of the utility model;

[0015] Figure 3 It is a Figure 1 enlarged schematic view of the a area;

[0016] Figure 4 It is a perspective view of the utility model;

[0017] Figure 5 It is an explosion view of the utility model;

[0018] Names of components in the drawing: 1, connecting rod 2, inner rod 3, inlet and outlet hole 4, top plate 5, outer tube 6, mounting ring 7, sampling tube 8, partition plate 9, conical head 10, sealing plate 11, pull rod 12, moving column 13, positioning pin 14, spring 15, guide groove. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0020] Example 1

[0021] This embodiment describes a blast furnace molten iron sampling device, such as... Figure 1 , Figure 4 and Figure 5 As shown, the sampling tube 7 is vertically arranged. Several partitions 8 are horizontally fixed at intervals from top to bottom inside the sampling tube 7 to divide its internal space into multiple storage compartments. The partitions 8 are evenly distributed from top to bottom inside the sampling tube 7, thereby dividing the internal space of the sampling tube 7 into several storage compartments of the same size. The storage compartments are used to store molten iron samples. In this embodiment, there are four storage compartments, but it can be divided into other numbers of storage compartments according to actual needs.

[0022] For each storage chamber, a number of inlet and outlet holes 3 are provided on the side wall of the sampling tube 7. The number of inlet and outlet holes 3 is the same as the number of storage chambers. Each inlet and outlet hole 3 is aligned with one of the storage chambers. All inlet and outlet holes 3 are arranged neatly from top to bottom. When the sampling tube 7 is submerged in molten iron, the molten iron can enter the corresponding storage chamber from each inlet and outlet hole 3. This makes it convenient for the storage chambers on the sampling tube 7 to sample molten iron at different depths, thereby facilitating the detection of molten iron at different depths.

[0023] The bottom of the sampling tube 7 is fixed with a conical head 9. The conical head 9 has a conical structure, but it can also be a pyramidal structure. When the sampling tube 7 is inserted into the molten iron, the conical head 9 can pierce the slag on the top of the molten iron through its tip. When the sampling tube 7 moves down, the slag is pushed away by the inclined surface of the conical head 9, so that the sampling tube 7 can be inserted into the molten iron more easily.

[0024] The sampling tube 7 is fitted with several mounting rings 6 that can move and rotate along the sampling tube 7. There is a gap between all the mounting rings 6 and the sampling tube 7, so that each mounting ring 6 can move up and down along the sampling tube 7 and can rotate freely.

[0025] The side of the sampling pipe 7 is vertically provided with a sealing plate 10 for blocking all the access holes 3, the sealing plate 10 is fixed with all the mounting rings 6, the sealing plate 10 is an arc-shaped plate, so that the side wall of the sealing plate 10 can tightly fit with the side wall of the sampling pipe 7, avoiding the molten iron flowing out from the access holes 3; all the mounting rings 6 are provided with openings, the sealing plate 10 is located in the openings of all the mounting rings 6, and the end of the opening of all the mounting rings 6 is fixed on the sealing plate 10, so that the sealing plate 10 is locked on the wall of the sampling pipe 7 through all the mounting rings 6, and the sealing plate 10 can tightly fit with the side wall of the sampling pipe 7 when rotating or moving;

[0026] The uppermost partition plate 8 is vertically fixed with an inner rod 2, the inner rod 2 is a round rod, and the bottom end of the inner rod 2 is fixed on the uppermost partition plate 8 in the sampling pipe 7;

[0027] The inner rod 2 is independently sleeved with an outer pipe 5, the outer pipe 5 is a round pipe, and there is a gap between the outer pipe 5 and the inner rod 2, so that the outer pipe 5 can move up and down or rotate along the inner rod 2;

[0028] The outer pipe 5 is fixed with a connecting rod 1 between the sealing plate 10, so that the sealing plate 10 can be synchronously rotated or moved through the connecting rod 1 when the worker rotates or moves up and down; the connecting rod 1 is in an “L” shape structure, the horizontal end of the connecting rod 1 is fixed on the outer pipe 5, and the vertical end of the connecting rod 1 is fixed on the sealing plate 10, so that the outer pipe 5 can smoothly move up and down or rotate through the connecting rod 1 when moving down, and the sealing plate 10 can be sequentially exposed to the access holes 3 when moving down, so that the molten iron in each storage bin can be sequentially poured out and separately cooled and stored, avoiding the fusion of the molten iron in different storage bins to affect the detection result;

[0029] Further description is as follows: Figure 2 , Figure 3 and Figure 4As shown, the preferred embodiment in the present application comprises a moving column 12 which is horizontally fixed on the side wall of the inner rod 2, and a guide slot 15 in the shape of "L" structure is formed on the side wall of the outer tube 5, and the moving column 12 is independently fitted in the guide slot 15; when the outer tube 5 rotates clockwise, the moving column 12 will move in the horizontal section of the guide slot 15, and when the moving column 12 moves to the end of the horizontal section of the guide slot 15, it will be blocked by the slot wall, at the same time, the outer tube 5 drives the sealing plate 10 to rotate counterclockwise through the connecting rod 1, and all the access holes 3 are exposed, and the rotation angle of the sealing plate 10 is limited by the limitation of the stroke of the moving column 12 in the horizontal section of the guide slot 15; when the outer tube 5 rotates counterclockwise, the moving column 12 moves to the corner of the guide slot 15, the outer tube 5 drives the sealing plate 10 to rotate counterclockwise through the connecting rod 1, and the sealing plate 10 blocks all the access holes 3 after rotating counterclockwise, preventing the molten iron in the storage bin from flowing out from the access holes 3, and then moving the outer tube 5 downward along the inner rod 2, the moving column 12 on the inner rod 2 will move in the vertical section of the guide slot 15, so that the outer tube 5 drives the sealing plate 10 to move downward through the connecting rod 1, and the access holes 3 are exposed from top to bottom in turn, so that the staff can pour out the molten iron in each storage bin in turn and store them separately for cooling, avoiding the fusion of the molten iron in different storage bins, and when the moving column 12 moves to the uppermost end of the guide slot 15, it will be blocked by the slot wall, and the moving distance of the sealing plate 10 is limited by the limitation of the stroke of the moving column 12 in the vertical section of the guide slot 15, so as to avoid the complete separation of the sealing plate 10 from the sampling tube 7, which affects the resetting of the sealing plate 10; the whole scheme constitutes a limiting assembly for limiting the moving stroke and rotation angle of the sealing plate 10; of course, the limiting assembly can also adopt a guide rod, and a guide slot in the shape of "L" structure is formed on the side wall of the inner rod 2, and the guide rod is in the shape of horizontal, one end of which is fixed on the connecting rod 1 and the other end is independently fitted in the guide slot.

[0030] Further description is made as follows: Figure 1 , Figure 3 and Figure 5As shown, the preferred top plate 4 in the embodiment is fixed on the top of the inner rod 2, and can block the outer tube 5 to prevent it from coming out. A plurality of positioning holes are formed on the side wall of the outer tube 5 and are uniformly distributed along the length direction of the outer tube 5. In the embodiment, the positioning holes are rectangular holes, and an inclined angle is formed at the corner between the upper and lower hole walls of each positioning hole and the inner wall of the outer tube 5. All the positioning holes are arranged at equal intervals from top to bottom, and the interval between adjacent positioning holes is the same as the interval between adjacent access holes 3. Of course, the positioning holes can also have other shapes, such as circular holes. An installation hole is formed on the side wall of the inner rod 2, and a positioning pin 13 in a "T" shape structure is independently inserted into the installation hole. The T-shaped pin is a kind of latch with unique structure and superior performance, and is widely used in various fields requiring quick disassembly and repeated positioning accuracy. The structure of the T-shaped pin is relatively unique, mainly composed of a pin body and a T-shaped head. The positioning pin 13 can move in the installation hole, so that the end of the positioning pin 13 can penetrate out and be inserted into the aligned positioning hole. The diameter of the head of the positioning pin 13 is greater than that of the positioning hole, so that the head of the positioning pin 13 will be blocked by the wall of the outer tube 5 and will not completely penetrate out of the installation hole. A round corner is formed at the corner of the end of the positioning pin 13. A spring 14 is inserted into the installation hole, and the spring 14 is located between the positioning pin 13 and the bottom of the installation hole. One end of the positioning pin 13 is inserted into one of the aligned positioning holes, and the positioning pin 13 is pushed by the elastic recovery capacity of the spring 14, so that the end of the positioning pin 13 penetrates out of the installation hole and can be inserted into the aligned positioning hole. When the positioning pin 13 is pressed, the positioning pin 13 will move into the installation hole and compress the spring 14. In use, when the outer tube 5 rotates counterclockwise, the sealing plate 10 will block and seal all the access holes 3, and the moving column 12 will move to the corner of the guide groove 15. At this time, the positioning pin 13 will be aligned with the first positioning hole, and the positioning pin 13 will be inserted into the aligned positioning hole by the pushing of the spring 14, so as to position the outer tube 5 and lock the sealing plate 10. When it is necessary to pour out the molten iron in each storage compartment in turn, the outer tube 5 is first pushed downward, the sealing plate 10 is moved downward by the connecting rod 1 and exposes the first access hole 3, the positioning pin 13 is pushed by the spring 14 and the end is inserted into the aligned positioning hole, so as to lock the moved outer tube 5 and further lock the moved sealing plate 10, so that the sealing plate 10 will not move or rotate when the molten iron in the first storage compartment is poured out, avoiding the opening of the remaining access holes 3.When the next storage tank needs to be poured, the positioning pin 13 is pressed first, and the positioning pin 13 moves into the mounting hole. When the rounded corner at the end of the positioning pin 13 is in contact with the inclined surface on the positioning hole, the outer tube 5 is pushed downward, so that the positioning pin 13 is automatically moved into the mounting hole under the push of the inclined angle, and the outer tube 5 continues to move downward, so that the fingers of the worker do not need to press the positioning pin 13 too much, avoiding the skin of the fingers of the worker being scratched by the positioning hole. When the outer tube 5 continues to move downward and the next positioning hole is aligned with the positioning pin 13, the spring 14 pushes the positioning pin 13 into the aligned positioning hole through its elasticity, locks the moved outer tube 5, and at the same time, the sealing plate 10 exposes the second access hole 3. The access hole 3 on the sampling tube 7 is opened in sequence through the above operation method, and all the molten iron samples in the storage tanks are poured out in sequence, and the moved sealing plate 10 is locked, so that the sealing plate 10 does not move or rotate when the worker pours the molten iron in one of the storage tanks, avoiding the molten iron in the remaining storage tanks from flowing out. The whole scheme constitutes a locking assembly for locking the moved outer tube. Of course, the locking assembly can also use a screw. A threaded hole for internal and external communication and threaded cooperation with the screw is formed on the outer tube 5. When the outer tube 5 moves, the screw is turned, and one end of the screw is abutted on the inner rod 2, so as to lock the moved outer tube.

[0031] The top plate 4 is fixed with a handle, which can be held by the worker when sampling the molten iron, facilitating picking up the sampling device. The upper end of the outer tube 5 is fixed with a pull rod 11, which can be pushed up and down or turned to control the movement of the outer tube 5 when the outer tube 5 is moved, which is more convenient for the worker to operate. The pull rod 11 is in a circular arc structure, which can avoid the hand from slipping off the pull rod 11 when the pull rod 11 is pushed and pulled by hand, and plays a role of positioning and anti-slip.

[0032] In actual use, the staff first rotates the outer tube 5 counterclockwise through the pull rod 11, so that the moving column 12 moves in the horizontal section of the guide groove 15, and the moving column 12 moves to the corner of the guide groove 15. The outer tube 5 drives the sealing plate 10 to rotate counterclockwise through the connecting rod 1. After the sealing plate 10 rotates counterclockwise, it seals all the access holes 3. At this time, the moving column 12 will move to the corner of the guide groove 15, and the positioning pin 13 will be aligned with the first positioning hole. Under the push of the spring 14, the end of the positioning pin 13 is inserted into the aligned positioning hole, positioning the outer tube 5, thereby locking the sealing plate 10. Then insert the sampling tube 7 into the molten iron, and after the sampling tube 7 is inserted to the appropriate position, press the positioning pin 13 into the installation groove. Rotate the outer tube 5 clockwise through the pull rod 11, and the outer tube 5 drives the sealing plate 10 to rotate clockwise through the connecting rod 1. All access holes 3 are exposed, allowing molten iron to enter the corresponding storage bin through each access hole 3, facilitating the storage bin on the sampling tube 7 to sample molten iron at different depths, thereby facilitating the detection of molten iron at different depths. After all the storage bins are filled, press the positioning pin 13 into the mounting hole, rotate the outer tube 5 counterclockwise, move the moving column 12 to the corner of the guide groove 15, and lock the rotated outer tube 5 through the positioning pin 13. After the sealing plate 10 rotates counterclockwise, it seals all the access holes 3 to prevent molten iron from flowing out. Then remove the sampling tube 7 from the molten iron through the inner rod 2. When pouring out the molten iron, press the positioning pin 13 into the mounting hole, and push the outer tube 5 downward. The outer tube 5 drives the sealing plate 10 to move downward and expose the first access hole 3 through the connecting rod 1. At the same time, one of the positioning holes will be aligned with the positioning pin 13. The positioning pin 13 is pushed by the spring 14 and the end is inserted into the aligned positioning hole, locking the moved outer tube 5, and further locking the moved sealing plate 10, so that the sealing plate 10 does not move or rotate when the staff pours out the molten iron in the first storage bin, avoiding the opening of the remaining access holes 3. Through the above operation method, the access holes 3 on the sampling tube 7 are opened in turn, and all the molten iron in the storage bins is poured out in order and stored separately for cooling, avoiding the fusion of molten iron in different storage bins and affecting the test results.

Claims

1. A molten iron sampling device for an iron-making blast furnace, comprising a vertically arranged sampling tube (7), characterized in that: The sampling pipe (7) is horizontally fixed with several partitions (8) from top to bottom, which divide the internal space into several storage spaces, several access holes (3) are arranged on the side wall of the sampling pipe (7) corresponding to all the storage spaces, the sampling pipe (7) is sleeved with several mounting rings (6) which can move and rotate along the sampling pipe (7), a sealing plate (10) is vertically arranged on one side of the sampling pipe (7) for blocking all the access holes (3), the sealing plate (10) is fixed with all the mounting rings (6), the uppermost partition (8) is vertically fixed with an inner rod (2), the inner rod (2) is independently sleeved with an outer pipe (5), the outer pipe (5) and the sealing plate (10) are fixed with a connecting rod (1), the outer pipe (5) and the inner rod (2) are provided with a limiting assembly for limiting the moving stroke and rotating angle of the sealing plate (10), and the outer pipe (5) and the inner rod (2) are provided with a locking assembly for locking the moved outer pipe.

2. The molten iron sampling device for an ironmaking blast furnace according to claim 1, characterized by: The limiting assembly comprises a moving column (12) which is horizontally fixed on the side wall of the inner rod (2), and the side wall of the outer pipe (5) is provided with a guide groove (15) in the shape of "L", and the moving column (12) is independently arranged in the guide groove (15).

3. The molten iron sampling device for an ironmaking blast furnace according to claim 1, characterized by: The locking assembly comprises a top plate (4) which is fixed on the top of the inner rod (2), the side wall of the outer pipe (5) is provided with several positioning holes which are in communication with the outside and are uniformly distributed along the length direction, the side wall of the inner rod (2) is provided with an installation hole, a positioning pin (13) in the shape of "T" is independently arranged in the installation hole, a spring (14) is arranged in the installation hole, the spring (14) is located between the positioning pin (13) and the bottom of the installation hole, and one end of the positioning pin (13) is arranged in one of the aligned positioning holes.

4. A molten iron sampling device for an iron making blast furnace as claimed in claim 3, wherein: The top plate (4) is fixed with a handle, and the upper end of the outer pipe (5) is fixed with a pull rod (11).

5. A molten iron sampling device for an iron making blast furnace as claimed in claim 4, characterised in that: The pull rod (11) is in the shape of arc.

6. The molten iron sampling device for an ironmaking blast furnace according to claim 1, characterized by: The connecting rod (1) is in the shape of "L", one end of the horizontal connecting rod (1) is fixed on the outer pipe (5), and the vertical end of the connecting rod (1) is fixed on the sealing plate (10).

7. The molten iron sampling device for an ironmaking blast furnace according to claim 1, characterized by: The bottom of the sampling pipe (7) is fixed with a conical head (9).

Images