Tuyere mud blocking device for replacing small sleeve of blast furnace
By designing a vent mud blocking device for replacing a small sleeve for blast furnace, the combined structure of the deduction cylinder and push rod is used to achieve rapid mud blocking from a long distance, solving the safety hazards and low efficiency of vent mud blocking during the replacing of a small sleeve for blast furnace, and improving operating efficiency and safety.
Patent Information
- Application Number
- CN202421799936.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-29
AI Technical Summary
During the process of replacing the small set of blast furnaces, gas and high-temperature coke exist in the air outlet suite, resulting in high safety risks for staff during the mud blocking process and it is difficult to effectively press into the gun mud, affecting the maintenance progress and increasing costs.
A blast furnace replacement air outlet mud blocking device is designed, including a deduction cylinder, push rod, shovel box and push plate. The push rod moves along the deduction cylinder and the push plate moves along the shovel box, and the water cannon mud is pressed to a designated position to achieve rapid mud blocking from a long distance.
The device is convenient to operate, and the staff stay away from the air outlet and quickly block the mud, which improves mud blocking efficiency and safety, and reduces maintenance time and labor costs.
Smart Images
Figure CN222975212U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a tuyere plugging mud device for replacing a small sleeve of a blast furnace, belonging to the technical field of blast furnace equipment. Background Art
[0002] During the process of replacing the small sleeve of a blast furnace, there is gas between the tuyere sleeves, and there are a large number of high-temperature red-hot cokes. It is necessary to plug the tuyere with mud to prevent the cokes in the tuyere from collapsing. During the mud plugging process, workers need to approach the tuyere, send the gunite into the tuyere with a shovel, and then use a plugging rake to press the wet gunite to the designated position. The mud plugging operation poses a certain hidden danger to the personal safety of workers, and it is difficult to effectively press the gunite into the position above the tuyere. If the gunite is not plugged well, it will cause a large area of coke collapse, affecting the maintenance progress and increasing the labor time and cost. Especially for the replacement of some small sleeves that are difficult to pull down, due to long-term pulling and hitting, the cokes above the tuyere are relatively loose, making it difficult to plug the gunite above the tuyere during the replacement of the small sleeve, resulting in multiple large-area coke collapses and serious lag in the maintenance time. Content of the Utility Model
[0003] The technical problem to be solved by the utility model is to provide a tuyere plugging mud device for replacing a small sleeve of a blast furnace according to the above-mentioned prior art, which is convenient to operate, enables workers to quickly plug the mud away from the tuyere, not only improves the mud plugging efficiency, but also improves the safety of operators.
[0004] The technical solution adopted by the utility model to solve the above problems is: a tuyere plugging mud device for replacing a small sleeve of a blast furnace, including a derivation cylinder, a push rod horizontally passing through the derivation cylinder, a shovel box for placing wet gunite arranged at one end of the derivation cylinder, one end of the push rod passing through the shovel box, the other end of the push rod being arranged outside the derivation cylinder, a push plate arranged in the shovel box, and the push plate being fixed to one end of the push rod; by pushing the push rod, the push rod can move along the derivation cylinder, and then the push plate can move along the shovel box, and the wet gunite in the shovel box is pressed to the set position.
[0005] One end of the shovel box is a closed end, and the other end is an open end, and the push rod passes through the closed end of the shovel box.
[0006] Rollers are symmetrically arranged at the bottom of the derivation cylinder.
[0007] The push plate is a circular structural member.
[0008] Compared with the prior art, the advantages of the utility model are: a tuyere plugging mud device for replacing a small sleeve of a blast furnace, which is convenient to operate, enables workers to quickly plug the mud away from the tuyere, not only improves the mud plugging efficiency, but also improves the safety of operators. Description of the Drawings
[0009] Figure 1 It is a schematic diagram of a tuyere plugging mud device for replacing a small sleeve of a blast furnace according to an embodiment of the utility model;
[0010] Figure 2 is Figure 1 the top view of;
[0011] Figure 3 is Figure 1 the side view of;
[0012] In the figure, 1 is the push rod, 2 is the derivation cylinder, 3 is the roller, 4 is the push plate, and 5 is the mud shovel box. Specific embodiments
[0013] The following further describes the present utility model in detail in conjunction with the embodiments of the attached drawings.
[0014] As Figures 1-3 shown, a tuyere plugging mud device for replacing a small sleeve in a blast furnace in this embodiment includes a hollow derivation cylinder 2, and a push rod 1 horizontally penetrates through the inner cavity of the derivation cylinder 2. One end of the derivation cylinder 2 is provided with a mud shovel box 5 for placing hydraulic clay. One end of the mud shovel box 5 is closed, and the other end is open. One end of the push rod 1 penetrates through the closed end of the mud shovel box 5, and the other end of the push rod 1 is arranged outside the derivation cylinder 2. A circular push plate 4 is arranged in the mud shovel box 5, and the push plate 4 is fixed to one end of the push rod 1. By pushing the push rod 4, the push rod 4 can move along the derivation cylinder 2, and then the push plate 4 is pushed to move along the mud shovel box 5, and the hydraulic clay in the mud shovel box 5 is pressed to a set position.
[0015] The bottom of the above-mentioned derivation cylinder 2 is symmetrically provided with rollers 3, which is convenient for pushing the derivation cylinder, so that the mud shovel box can be put into the tuyere and closely attached to the coke.
[0016] The above-mentioned push rod is made of stainless steel material with a length of 2800 mm and a diameter of 6 mm. The baffle is made of circular stainless steel material with a diameter of 120 mm and a thickness of 6 mm. The guide cylinder and the mud shovel box are made of stainless steel material, and the total length of the two is 2500 mm, of which the mud shovel box part is 300 mm long and 200 mm in diameter, and the guide cylinder part is 2200 mm long and 35 mm in diameter.
[0017] During the process of replacing the small sleeve, the small sleeve is pulled down; the tuyere plugging mud device is placed far away from the tuyere, the push rod is pulled out, and the hydraulic clay is put into the mud shovel box through the open end of the mud shovel box; the derivation cylinder is pushed, so that the roller moves, driving the mud shovel box to be put into the tuyere and closely attached to the coke; the operator stands at a safe position and pushes the push rod, so that the push plate pushes the hydraulic clay to the designated position; after the mud is plugged, the push rod is pulled back in the reverse direction to reset the push rod, and then the derivation cylinder is pushed away from the tuyere, so that the mud shovel box is removed.
[0018] The operation of this application is convenient, and it can quickly plug the area where coke is likely to collapse above the tuyere. Moreover, the mud plugging personnel save time and effort, which not only improves the operation efficiency but also improves the safety of the operators.
[0019] In addition to the above embodiments, the present utility model also includes other implementation manners. Any technical solutions formed by means of equivalent transformation or equivalent substitution shall fall within the protection scope of the claims of the present utility model.
Claims
1. A tuyere mud blocking device for replacing a small sleeve of a blast furnace, characterized in that: It includes a push guide tube, a push rod is horizontally inserted in the push guide tube, one end of the push guide tube is provided with a shovel box for placing water cannon mud, one end of the push rod is inserted in the shovel box, the other end of the push rod is arranged outside the push guide tube, a push plate is provided in the shovel box, and the push plate is fixed to one end of the push rod; the push rod is pushed so that the push rod can move along the push guide tube, thereby pushing the push plate to move along the shovel box, and pressing the water cannon mud in the shovel box to a set position.
2. The tuyere mud blocking device for replacing a small sleeve of a blast furnace according to claim 1, characterized in that: One end of the shovel box is a closed end, and the other end is an open end, and the push rod passes through the closed end of the shovel box.
3. The device for plugging mud at the tuyere of a blast furnace for replacing a small sleeve according to claim 1, characterized in that: Rollers are symmetrically arranged at the bottom of the derivation cylinder.
4. The tuyere mud blocking device for replacing a small sleeve of a blast furnace according to claim 1, characterized in that: The push plate is a circular structural member.