Simple slag blocking device for blocking slag hole of bottom blowing furnace

Abstract

The utility model relates to the field of smelting equipment, and discloses a simple slag blocking device for blocking a slag hole of a bottom blowing furnace, which comprises a charging barrel for containing blocking materials, a sleeve welded at the center of the bottom of the charging barrel, a material pushing rod movably arranged in the sleeve and used for pushing the blocking materials, a movable sleeve movably arranged on the sleeve, and a bracket hinged with the movable sleeve, the material pushing rod is exposed out of the tail end of the sleeve; a flange plate is further welded to the tail end of the sleeve, a hollow hydraulic cylinder is fixedly installed on the flange plate, and the ejection end of the hollow hydraulic cylinder is fixedly connected with the material pushing rod. According to the slag blocking device, the slag opening can be blocked remotely only by one person, and the slag blocking device has the advantages of being simple in structure, low in manufacturing cost and easy to operate.

Description

Technical Field

[0001] The utility model relates to the field of smelting equipment, in particular to a simple slag blocking device for blocking a slag port of a bottom blowing furnace. Background Art

[0002] Bottom blowing furnace is a commonly used smelting equipment. The main principle is to blow gas to the bottom of the furnace to pass through the ore layer, so that the ore can be efficiently reduced and liquid metal can be formed in the ore. After collection and processing, metal products are finally obtained.

[0003] In the bottom-blown furnace smelting process, at the end of each smelting cycle, the slag needs to be discharged from the furnace, and then the slag is blocked with blocking materials. At present, the main methods of blocking in the existing technology are as follows:

[0004] 1. Manual plugging, which results in a harsh working environment and high labor intensity for operators; at the same time, there is a safety hazard that the operator may be scalded by the splashing high-temperature slag;

[0005] 2. Use a slag opening and plugging device to unblock. For example, a Chinese patent application with an application date of 2021-10-18 and application number CN202122494696.6 discloses a slag opening and plugging device for a bottom-blowing furnace. Although this special device can solve the slag discharge problem, it is expensive and has high maintenance costs after installation, so it is not suitable for small-scale production.

[0006] In the prior art, a slag blocking device is also designed to solve the problem of manual blocking. For example, a Chinese patent application with an application date of 2022-12-26 and an application number of CN202211673239.6 discloses a slag blocking device suitable for a metallurgical lead smelting bottom blowing furnace, which can effectively block the slag opening through a plug, refractory mud and a feed drive part without the need for close human involvement. The slag blocking device still has the problems of complex structure and high manufacturing cost.

[0007] Based on this, the present application provides a simple slag blocking device for sealing the slag port of a bottom blowing furnace, which has a simple structure, low manufacturing cost and is easy to use. Utility Model Content

[0008] The utility model aims to solve the technical problems existing in the prior art. To this end, the utility model provides a simple slag blocking device for blocking the slag port of a bottom blowing furnace, which has a simple structure, low manufacturing cost and is easy to use.

[0009] The technical solution adopted by the utility model to solve its technical problems is:

[0010] Provided is a simple slag plugging device for plugging the slag mouth of a bottom-blowing furnace, comprising a barrel for containing plugging material, a sleeve welded to the center of the bottom of the barrel, a push rod movably arranged in the sleeve for pushing the plugging material, a movable sleeve movably arranged on the sleeve and a bracket hingedly connected to the movable sleeve; the push rod exposes the tail end of the sleeve; a flange plate is also welded to the tail end of the sleeve, a hollow hydraulic cylinder is fixedly mounted on the flange plate, and the ejection end of the hollow hydraulic cylinder is fixedly connected to the push rod.

[0011] In a preferred embodiment of the utility model, a fixing sleeve is further provided on the sleeve, and the fixing sleeve is fixedly installed on one end of the sleeve close to the barrel, a pulley is provided on the fixing sleeve, a supporting track is provided on the bracket, and the pulley is provided on the supporting track.

[0012] Preferably, the distance between the fixed sleeve and the support track is equal to the distance between the movable sleeve and the support track.

[0013] Preferably, the pulley is a V-shaped wheel, and the support track is an inverted V-shaped track.

[0014] Preferably, the inner diameter of the barrel is 5 to 10 mm larger than the inner diameter of the slag opening of the bottom blowing furnace, and the height of the bracket satisfies that the barrel and the slag opening are on the same axis.

[0015] Preferably, a push plate is welded to the end of the push rod located in the barrel, and the diameter of the push plate is 5 to 10 mm smaller than the inner diameter of the slag opening.

[0016] In a preferred embodiment of the utility model, a guide groove is provided on the sleeve, and a guide rib matching the guide groove is provided in the movable sleeve.

[0017] In a preferred embodiment of the present utility model, a push rod is welded on the sleeve near the flange plate.

[0018] Compared with the prior art, the utility model has the beneficial effects that only one person is needed to seal the slag opening at a long distance, and the slag blocking device has the advantages of simple structure, low manufacturing cost and simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0020] Figure 1This is a state diagram of a simple slag blocking device for blocking a slag outlet of a bottom-blowing furnace provided by the utility model during blocking;

[0021] Figure 2 The utility model discloses a feeding state diagram of a simple slag blocking device for blocking the slag outlet of a bottom blowing furnace.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1—barrel, 2—sleeve, 2.1—flange plate, 2.2—push rod, 3—push rod, 3.1—push plate, 4—movable sleeve, 5—bracket, 6—hollow hydraulic cylinder, 7—fixed sleeve, 7.1—pulley, 8—support rail, 10—sealing material. DETAILED DESCRIPTION

[0024] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; the terms "install", "connected", and "connected" should be understood in a broad sense, for example, it 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 it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0028] Embodiment 1

[0029] This embodiment provides a simple slag blocking device for blocking the slag port of a bottom blowing furnace, as shown in the attached Figure 1 As shown, it includes a barrel 1 for containing blocking material 10, a sleeve 2 welded to the bottom center of the barrel 1, a push rod 3 movably arranged in the sleeve 2 for pushing the blocking material 10, a movable sleeve 4 movably arranged on the sleeve 2 and a bracket 5 hingedly connected to the movable sleeve 4, wherein: the sleeve 2 is used to lengthen the barrel 1 so as to realize remote operation of the barrel to block the slag opening; a push plate 3.1 is welded at the end of the push rod 3 located in the barrel 1 for pushing out the blocking material 10, and the other end of the push rod 3 is exposed at the rear end of the sleeve 2 (the exposed length is greater than the depth of the barrel), and is used to operate at the rear end of the sleeve to push the blocking material in the barrel out of the barrel into the slag opening to block the slag opening; the movable sleeve 4 and the bracket 5 serve as a support, and the sleeve and the movable sleeve are movably connected to facilitate moving the barrel between the slag opening and the bracket.

[0030] Preferably, the inner diameter of the barrel 1 is 5 to 10 mm larger than the inner diameter of the slag opening of the bottom blowing furnace, ensuring that the barrel can completely cover the slag opening. The height of the bracket 5 ensures that the barrel 1 and the slag opening are on the same axis, and the barrel can be pushed out horizontally to dock with the slag opening.

[0031] Preferably, the diameter of the push plate 3.1 is 5-10 mm smaller than the inner diameter of the slag opening, so as to ensure that the plugging material can completely enter the slag opening.

[0032] In order to facilitate the plugging material to be pushed out of the barrel, a flange plate 2.1 is welded to the tail end of the sleeve 2 in this embodiment, and a hollow hydraulic cylinder 6 is fixedly mounted on the flange plate 2.1, and the ejection end of the hollow hydraulic cylinder 6 is fixedly connected to the ejector rod 3. This design can use the hollow hydraulic cylinder to push the material, which is more labor-saving than manual pushing. Specifically, a pull plate is screwed to the tail end of the ejector rod, and the pull plate is bolted to the ejection end of the hollow hydraulic cylinder.

[0033] Preferably, the sleeve 2 of this embodiment is further provided with a fixing sleeve 7, the fixing sleeve 7 is fixedly mounted on one end of the sleeve 2 close to the barrel 1, the fixing sleeve 7 is provided with a pulley 7.1, the bracket 5 is provided with a support track 8, and the pulley 7.1 is arranged on the support track 8. This design can use the support track to support the sleeve when the barrel is pushed forward, so as to prevent the cantilever from being formed after the barrel is pushed forward, and a large force is required to maintain the horizontal position of the barrel; and the sleeve is equipped with a pulley through the fixing sleeve, and the pulley and the support track are in rolling contact, which can effectively reduce friction, and only manual pushing and pulling can be used to realize the pull-back and feeding of the barrel and the pushing and blocking of the slag mouth.

[0034] Preferably, the distance between the fixed sleeve 7 and the support track 8 is equal to the distance between the movable sleeve 4 and the support track 8, which can ensure that the barrel is always in a horizontal state when plugging.

[0035] Preferably, the pulley 7.1 is a V-shaped wheel, and the support track 8 is configured as an inverted V-shaped track.

[0036] Embodiment 2

[0037] On the basis of the first embodiment, this embodiment provides a guide groove (not shown in the figure) along the length direction of the sleeve 2, and a guide rib (not shown in the figure) matching the guide groove is provided in the movable sleeve 2. This design can prevent the angle deflection of the sleeve from causing the pulley and the support track to be misaligned, causing the support track to lose its supporting function.

[0038] Preferably, a push rod 2.2 is welded on the sleeve 2 near the flange plate, so that a person can hold it to push the sleeve and advance the barrel.

[0039] When implementing it, as shown in the attached Figure 2 As shown in the figure, pull out the sleeve. At this time, the barrel is in an inclined state. The barrel in this state is convenient for loading the plugging material into the barrel. After loading the plugging material, lift the sleeve and push it forward so that the barrel is against the slag mouth. Figure 1 As shown in the figure, the hydraulic cylinder in the control center pushes the push rod to send the plugging material into the slag mouth to complete the plugging. After the plugging is completed, the casing is pulled back to Figure 2 Status, waiting for the next slag outlet to be blocked.

[0040] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A simple slag blocking device for blocking the slag port of a bottom blowing furnace, characterized in that: It includes a barrel for containing plugging material, a sleeve welded to the center of the bottom of the barrel, a push rod movably arranged in the sleeve for pushing the plugging material, a movable sleeve movably arranged on the sleeve, and a bracket hingedly connected to the movable sleeve; The push rod is exposed from the rear end of the sleeve; A flange plate is also welded to the tail end of the sleeve, a hollow hydraulic cylinder is fixedly mounted on the flange plate, and an ejection end of the hollow hydraulic cylinder is fixedly connected to the push rod.

2. The simple slag blocking device for blocking the slag port of a bottom blowing furnace according to claim 1, characterized in that: The sleeve is also provided with a fixing sleeve, which is fixedly mounted on one end of the sleeve close to the barrel, and a pulley is arranged on the fixing sleeve. The bracket is provided with a supporting track, and the pulley is arranged on the supporting track.

3. The simple slag blocking device for blocking the slag port of a bottom blowing furnace according to claim 2, characterized in that: The distance between the fixed sleeve and the supporting track is equal to the distance between the movable sleeve and the supporting track.

4. The simple slag blocking device for blocking the slag port of a bottom blowing furnace according to claim 2, characterized in that: The pulley is a V-shaped wheel, and the support track is an inverted V-shaped track.

5. The simple slag blocking device for blocking the slag port of a bottom blowing furnace according to claim 1, characterized in that: The inner diameter of the barrel is 5 to 10 mm larger than the inner diameter of the slag opening of the bottom blowing furnace, and the height of the bracket satisfies that the barrel and the slag opening are on the same axis.

6. The simple slag blocking device for blocking the slag port of a bottom blowing furnace according to claim 1, characterized in that: A push plate is welded to the end of the push rod located in the barrel, and the diameter of the push plate is 5 to 10 mm smaller than the inner diameter of the slag opening.

7. The simple slag blocking device for blocking the slag port of a bottom blowing furnace according to any one of claims 1 to 6, characterized in that: The sleeve is provided with a guide groove, and the movable sleeve is provided with a guide rib matching the guide groove.

8. The simple slag blocking device for blocking the slag port of a bottom blowing furnace according to claim 7, characterized in that: A push rod is also welded on the sleeve near the flange plate.

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