Residual iron hole plugging device for blast furnace tapping main channel
By designing a sealing device for residual iron eyes for blast furnace discharge grooves, the combination of the combined part and the positioning part is used to solve the problem of poor sealing effect in the prior art, and the efficient sealing effect of residual iron eyes is achieved.
Patent Information
- Application Number
- CN202420986082.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-05-09
AI Technical Summary
The existing method of sealing residual iron eye of the blast furnace discharge groove is poor, resulting in the discharge of refractory mud from the inner outlet of the residual iron eye, affecting the normal use of the main groove.
A sealing device including an intermediate plate, a combined part, an elongated rod and a positioning part is designed. By deformation of the combined part, it can successfully pass through the residual iron mouth and reach the inner side of the residual iron mouth, merge into a complete circular plate to seal the inner opening of the residual iron mouth, and seal both ends of the residual iron mouth through the coordination of the positioning part and the combined part.
It effectively avoids the discharge of refractory mud from the inner outlet of the residual iron eye, ensures the sealing effect, and ensures the normal use of the main groove.
Smart Images
Figure CN222631472U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a blocking device, in particular to a device capable of blocking residual iron eyes on a blast furnace tapping channel, and belongs to the technical field of blocking equipment for residual iron eyes on a blast furnace tapping channel. Background Art
[0002] Existing blast furnace ironmaking mostly uses an iron storage type main trench. During normal production, there is molten iron in the main trench. When repairing the main trench, it is necessary to open up the residual iron eye so that the molten iron in the main trench can be discharged from the residual iron eye, and then the molten iron in the main trench can be drained out, so as to facilitate subsequent main trench repair operations. After draining the residual molten iron, it is necessary to seal the residual iron eye as soon as possible. At present, the sealing of the residual iron eye is completed by refractory mud. The inner side of the residual iron eye has a harsh environment and is not easy to enter. The staff generally implements the sealing operation at the external outlet of the residual iron eye. Due to the transparent holes at both ends of the residual iron eye, when the sealing operation is only performed on one side, a considerable part of the refractory mud will be discharged from the inner outlet of the residual iron eye, resulting in poor sealing effect, affecting the subsequent normal use of the main trench. Therefore, a sealing device is needed, which is required to assist the staff to efficiently seal the residual iron eye. Utility Model Content
[0003] The utility model aims to overcome the deficiencies of the prior art and provide a residual iron eye plugging device for a blast furnace iron-out main groove, which can efficiently assist workers in plugging the residual iron eye.
[0004] The problem described in the utility model is solved by the following technical solutions:
[0005] A residual iron eye plugging device for the main trough of blast furnace iron tapping, comprising an intermediate plate, a merging part, a long round rod and a positioning part; the number of the merging parts is two, and they are symmetrically arranged on both sides of the intermediate plate; one end of the long round rod is connected to the intermediate plate, and the other end of the long round rod is connected to the positioning part; the merging part comprises a hinge seat, a support plate, a slider and a semicircular plate; a semicircular cavity is arranged inside the semicircular plate, and the diameter of the semicircular cavity is greater than the length of the intermediate plate, and the thickness of the semicircular cavity is equal to the thickness of the intermediate plate; the hinge seat is arranged in the center of the side wall of the intermediate plate, and the support plate is hingedly arranged on the hinge seat; the slider is connected to the support plate; a slide rail is arranged at the center of the inner wall of the semicircular cavity of the semicircular plate, and the center line of the slide rail is perpendicular to the length direction line of the intermediate plate; the slider is slidably arranged on the slide rail of the semicircular cavity in the semicircular plate.
[0006] The above-mentioned residual iron eye plugging device for the main trough of blast furnace iron tapping, the thickness of the slide plate is equal to the thickness of the semicircular cavity of the semicircular plate, a slide groove is provided on the side wall of the slide plate, and the slide groove of the slide plate is slidably connected with the slide rail on the inner wall of the semicircular cavity of the semicircular plate.
[0007] In the above-mentioned residual iron eye plugging device for the main trough of blast furnace iron tapping, the thickness of the hinged seat and the support plate are both smaller than the thickness of the semicircular cavity of the semicircular plate.
[0008] The above-mentioned residual iron eye plugging device for the main iron outlet channel of a blast furnace has an external thread on the circumferential outer wall of the long round rod; one end of the long round rod forms a hinged fitting connection structure with the center position of the side wall of the middle plate.
[0009] The above-mentioned residual iron eye plugging device for the main iron tapping groove of a blast furnace, the positioning part includes a disc and a handle; a hole is arranged in the center of the disc, and an internal thread is arranged on the inner wall of the hole, and the internal thread of the center hole of the disc and the external thread on the circumferential outer wall of the long round rod constitute a threaded matching connection structure; the handle is arranged on the end face of the disc away from the semicircular plate; a mud injection hole is arranged on the end face of the disc away from the semicircular plate.
[0010] The utility model enables the merging part to successfully pass through the scrap iron opening and reach the inner side of the scrap iron opening through the deformation of the merging part, merges the merging part into a complete circular plate on the inner side and seals the inner opening of the scrap iron opening; through the cooperation of the positioning part and the merging part, both ends of the scrap iron opening are sealed to ensure that the injected refractory mud is not easy to overflow. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0012] Figure 2 It is a partial enlarged structural schematic diagram of the utility model A.
[0013] The list of reference numerals in the figure is: 1. middle plate, 2. long round rod, 3. hinged seat, 4. support plate, 5. slider, 6. semicircular plate, 7. disc, 8. handle. DETAILED DESCRIPTION
[0014] See also Figure 1 and Figure 2 The utility model comprises an intermediate plate 1, a merging part, a long round rod 2 and a positioning part; the number of the merging parts is two, and they are symmetrically arranged on both sides of the intermediate plate 1; the merging parts on both sides can be merged into a complete circular plate, and the inner opening of the residual iron mouth is blocked; one end of the long round rod 2 is connected to the intermediate plate 1, and the other end of the long round rod 2 is connected to the positioning part; the intermediate plate 1 and the two merging parts thereon are sent into the residual iron mouth through the long round rod 2 and extend from the inner opening.
[0015] The merging part includes a hinge seat 3, a support plate 4, a slider 5 and a semicircular plate 6; a semicircular cavity is arranged inside the semicircular plate 6, and the diameter of the semicircular cavity is greater than the length of the middle plate 1, and the thickness of the semicircular cavity is equal to the thickness of the middle plate 1; the semicircular cavity is used for the middle plate 1 to enter, thereby ensuring that the two semicircular plates 6 can be merged into a complete circular plate and the residual iron mouth is blocked;
[0016] The hinge seat 3 is arranged at the center position of the side wall of the middle plate 1, and the support plate 4 is hingedly arranged on the hinge seat 3; the slider 5 is connected to the support plate 4; through the cooperation of the support plate 4 and the hinge seat 3, the slider 5 can flip the semicircular plate 6, which makes the arc edges of the two semicircular plates 6 contact, reducing the volume of their combination, and thus facilitating passing through the residual iron mouth; a slide rail is arranged at the center of the inner wall of the semicircular cavity of the semicircular plate 6, and the center line of the slide rail is perpendicular to the length direction line of the middle plate 1; the slider 5 is slidably arranged on the slide rail of the semicircular cavity in the semicircular plate 6; when the two semicircular plates 6 need to be merged, the plane of the semicircular plate is operated to be parallel to the plane of the middle plate 1, and then the two semicircular plates 6 are pushed close to each other, at this time the middle plate 1 enters the inner cavity of the two semicircular plates 6, without the obstruction of the middle plate 1, the two semicircular plates 6 are successfully merged into a complete circular plate to seal the inner opening of the residual iron mouth.
[0017] The thickness of the slide plate is equal to the thickness of the semicircular cavity of the semicircular plate 6. A slide groove is provided on the side wall of the slide plate. The slide groove of the slide plate is slidably connected with the slide rail on the inner wall of the semicircular cavity of the semicircular plate 6; this ensures that the slide plate can slide smoothly in the inner cavity of the semicircular plate 6, thereby driving the middle plate to enter the inner cavity of the semicircular plate 6.
[0018] The thickness of the hinge seat 3 and the support plate 4 are both smaller than the thickness of the semicircular cavity of the semicircular plate 6 , which ensures that the middle plate 1 , the hinge seat 3 and the support plate 4 can all smoothly enter the interior of the semicircular plate 6 .
[0019] An external thread is arranged on the circumferential outer wall of the long round rod 2; one end of the long round rod 2 forms a hinged connection structure with the center position of the side wall of the middle plate 1; the hinged structure allows the long round rod 2 and the middle plate 1 to be tilted, so that the middle plate 1 and the semicircular plate can pass through the residual iron opening in a horizontal posture.
[0020] The positioning part includes a disc 7 and a handle 8; a hole is provided in the center of the disc 7, and an internal thread is provided on the inner wall of the hole, and the internal thread of the center hole of the disc 7 and the external thread on the circumferential outer wall of the long round rod 2 constitute a threaded matching connection structure; the handle 8 is provided on the end face of the disc 7 away from the semicircular plate 6; the disc 7 can be driven to rotate synchronously by holding the handle 8, and the rotating disc 7 moves forward on the long round rod 2, and then cooperates with the opposite merging circular plate to clamp the residual iron mouth; a mud injection hole is provided on the end face of the disc 7 away from the semicircular plate 6; the refractory mud is injected into the residual iron mouth through the mud injection hole of the disc 7.
[0021] Actual use process: in the initial state, the middle plate 1 is located in the middle of the semicircular plates 6 on both sides, and the axis line of the long round rod 2 is parallel to the length direction line of the middle plate 1; the two semicircular plates 6 are in an inclined state, and the arc edges of the semicircular plates 6 are in contact; the long round rod 2 is held to extend the middle plate 1 and the semicircular plates 6 from the residual iron mouth until they pass through the entire residual iron mouth, and then the two semicircular plates 6 are flipped on the inner side of the residual iron mouth to make them parallel, and then the semicircular plates 6 are merged so that the hinge seat, the support plate and the slider and the middle plate 1 are received in the inner cavity of the semicircular plates 6; then the long round rod is pulled so that the merged circular plate touches the opening on the inner side of the residual iron mouth; then the disc is installed on the long round rod 2, and the disc 7 is rotated so that it touches the outer opening of the residual iron mouth, and then refractory mud is injected from the mud injection hole of the disc 7 until the residual iron mouth is filled. This device is a disposable item and is filled in the residual iron mouth together with the refractory mud; when the next maintenance is carried out, the device and the refractory mud are drilled through together to carry out the residual iron discharge operation.
Claims
1. A device for plugging residual iron holes in the main trough of a blast furnace, characterized in that: The invention comprises an intermediate plate (1), a merging part, a long round rod (2) and a positioning part; the merging parts are two in number and are symmetrically arranged on both sides of the intermediate plate (1); one end of the long round rod (2) is connected to the intermediate plate (1), and the other end of the long round rod (2) is connected to the positioning part; the merging part comprises a hinge seat (3), a support plate (4), a sliding block (5) and a semicircular plate (6); a semicircular cavity is arranged inside the semicircular plate (6), and the diameter of the semicircular cavity is larger than that of the intermediate plate ( 1), the thickness of the semicircular cavity is equal to the thickness of the middle plate (1); the hinge seat (3) is arranged at the center of the side wall of the middle plate (1), and the support plate (4) is hingedly arranged on the hinge seat (3); the slider (5) is connected to the support plate (4); a slide rail is arranged at the center of the inner wall of the semicircular cavity of the semicircular plate (6), and the center line of the slide rail is perpendicular to the length direction line of the middle plate (1); the slider (5) is slidably arranged on the slide rail of the semicircular cavity in the semicircular plate (6).
2. The residual iron eye plugging device for the main trough of blast furnace iron tapping according to claim 1 is characterized in that: The thickness of the slider (5) is equal to the thickness of the semicircular cavity of the semicircular plate (6), a slide groove is provided on the side wall of the slider (5), and the slide groove of the slider (5) is slidably connected with the slide rail on the inner wall of the semicircular cavity of the semicircular plate (6).
3. The residual iron eye plugging device for the main trough of blast furnace iron tapping according to claim 2 is characterized in that: The thickness of the hinge seat (3) and the support plate (4) are both smaller than the thickness of the semicircular cavity of the semicircular plate (6).
4. The residual iron eye plugging device for the main trough of blast furnace iron tapping according to claim 3 is characterized in that: An external thread is provided on the circumferential outer wall of the long round rod (2); one end of the long round rod (2) and the center position of the side wall of the middle plate (1) form a hinged matching connection structure.
5. The residual iron eye plugging device for the main trough of blast furnace iron tapping according to claim 4 is characterized in that: The positioning part comprises a disc (7) and a handle (8); a hole is arranged at the center of the disc (7), and an internal thread is arranged on the inner wall of the hole, and the internal thread of the center hole of the disc (7) and the external thread on the circumferential outer wall of the long round rod (2) form a threaded matching connection structure; the handle (8) is arranged on the end face of the disc (7) away from the semicircular plate (6); and a mud injection hole is arranged on the end face of the disc (7) away from the semicircular plate (6).