Lifting type heat preservation cover for main iron runner of blast furnace

Abstract

A blast furnace main iron runner lifting type heat preservation cover comprises a steel cross beam rail and a heat preservation cover body, an electric hoist crane is arranged on the steel cross beam rail, a hoist crane hanging ring is installed at the lower end of the electric hoist crane, a connecting steel chain is arranged on the hoist crane hanging ring, the other end of the connecting steel chain is connected with a hanging lug, and the hanging lug is installed on the heat preservation cover body. The heat preservation cover comprises a heat-resisting steel plate layer, the outer side of the heat-resisting steel plate layer is wrapped with an outer wall heat preservation layer, and an inner wall heat preservation layer is arranged on the inner side of the heat-resisting steel plate layer. The protective cover has the beneficial effects that the thermal insulation cover can be removed and covered only by one key of an operator, so that the blast furnace taphole drilling and taphole blocking operations are not influenced, the temperature stability in a molten iron trough can be improved, the separation of liquid slag and iron is facilitated, and the slag carrying amount of the molten iron of the blast furnace is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a heat preservation cover, concretely relates to a lifting type heat preservation cover of blast furnace main iron channel. BACKGROUND

[0002] The main iron channel of blast furnace is an important facility in front of the blast furnace, and its function is to realize the separation of liquid slag and iron, and the installation of the heat insulation cover above the iron channel can improve the temperature stability in the iron channel, is beneficial to the separation of liquid slag and iron, and reduces the slag content of the blast furnace.

[0003] During the opening and plugging of the iron notch of the blast furnace, the heat preservation cover of the main iron channel will block the running track of the opening machine and the plugging machine, so the heat preservation cover must be lifted away first, and then the heat preservation cover is lifted to the main iron channel after the operation is completed, in actual production, the iron tapping frequency of the blast furnace reaches 10 to 20 times per day, and the heat preservation cover needs to be lifted frequently, therefore, many blast furnaces abandon the heat preservation cover of the main iron channel, but abandoning the heat preservation cover will intensify the temperature fluctuation in the main iron channel, and cause the increase of the slag content of the blast furnace, therefore, a lifting type heat preservation cover of blast furnace main iron channel is urgently needed. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at the defects in the prior art, and provides a lifting type heat preservation cover of blast furnace main iron channel, which can realize the removal and covering of the heat preservation cover by one key of the operator, does not affect the opening and plugging of the iron notch of the blast furnace, can improve the temperature stability in the iron channel, is beneficial to the separation of liquid slag and iron, and reduces the slag content of the blast furnace.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a lifting type heat preservation cover of blast furnace main iron channel, which comprises a steel beam track 1 and a heat preservation cover 6, the steel beam track 1 is provided with an electric hoist 2, the lower end of the electric hoist 2 is provided with a hoist ring 3, the hoist ring 3 is provided with a connecting steel chain 4, the other end of the connecting steel chain 4 is connected with a lug 5, and the lug 5 is installed on the heat preservation cover 6; the heat preservation cover 6 comprises a heat-resistant steel plate layer 62, the outer side of the heat-resistant steel plate layer 62 is wrapped with an outer wall heat preservation layer 61, and the inner side of the heat-resistant steel plate layer 62 is provided with an inner wall heat preservation layer 63.

[0006] Further, the heat preservation cover 6 is provided with a visual window on both sides, which is convenient for the operator to observe the running state of the iron channel at any time, and the visual window is provided with a movable door 7 through a hinge.

[0007] Further, the electric hoist 2 is provided with two, and the two electric hoists 2 are arranged on the steel beam track 1.

[0008] Further, the outer wall heat preservation layer 61 adopts aluminum skin and steel plate, and the aluminum skin and the steel plate are filled with heat-resistant cotton.

[0009] Further, the inner wall heat preservation layer 63 is made of aluminum silicate ceramic fiber.

[0010] Further, the eight hanging ears 5 are arranged in two groups on the top of the heat preservation cover 6, and the four hanging ears 5 are arranged in a square manner on the top of the heat preservation cover 6.

[0011] Further, the electric hoist 2 is provided with a limit switch and an overload protection device.

[0012] After the above technical scheme is adopted, the protective cover can be removed and capped by one key of the operator, which does not affect the opening and plugging of the iron notch of the blast furnace, improves the temperature stability in the iron channel, is beneficial to the separation of liquid slag and iron, and reduces the slag amount of the molten iron of the blast furnace. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0014] Figure 1 is a structural schematic diagram of the present application.

[0015] Figure 2 is Figure 1 is a corresponding right view structural schematic diagram.

[0016] Figure 3 is Figure 1 is an A-A sectional view structural schematic diagram.

[0017] The drawings are explained: steel beam rail 1, electric hoist 2, hoist ring 3, connecting steel chain 4, hanging ear 5, heat preservation cover 6, movable small door 7, outer wall heat preservation layer 61, heat-resistant steel plate layer 62, inner wall heat preservation layer 63. DETAILED DESCRIPTION

[0018] Referring to Figures 1-3 The technical scheme adopted in the present embodiment is as follows: it comprises a steel beam rail 1 and a heat preservation cover 6, the steel beam rail 1 is provided with an electric hoist 2, the lower end of the electric hoist 2 is provided with a hoist ring 3, the hoist ring 3 is provided with a connecting steel chain 4, the other end of the connecting steel chain 4 is connected with a hanging ear 5, the hanging ear 5 is installed on the heat preservation cover 6; the heat preservation cover 6 comprises a heat-resistant steel plate layer 62, the outer side of the heat-resistant steel plate layer 62 is wrapped with an outer wall heat preservation layer 61, and the inner side of the heat-resistant steel plate layer 62 is provided with an inner wall heat preservation layer 63.

[0019] More specifically, the heat preservation cover 6 is provided with a visual window on both sides, which is convenient for the staff to observe the running state of the iron groove at any time, and the visual window is provided with a movable door 7 through a hinge. The movable door 7 installed through the hinge can be flexibly opened or closed, which is convenient for the staff to observe the running state of the iron groove at any time.

[0020] More specifically, two electric hoists 2 are provided, and the two electric hoists 2 are arranged on the steel beam track 1. The steel beam track 1 can facilitate the walking and running of the electric hoist 2.

[0021] More specifically, the outer wall insulation layer 61 is made of aluminum skin and steel plate, and the aluminum skin and the steel plate are filled with heat-resistant cotton. The outer wall insulation layer 61 can effectively insulate heat, thereby preventing personnel from being scalded.

[0022] More specifically, the inner wall insulation layer 63 is made of aluminum silicate ceramic fiber. The aluminum silicate ceramic fiber is a new type of light weight energy-saving refractory material, which has the effects of high temperature resistance and heat insulation.

[0023] More specifically, the eight hanging ears 5 are arranged in two groups at both ends of the top of the heat preservation cover 6, and the four hanging ears 5 are arranged in a square manner on the top of the heat preservation cover 6. Arranging the four hanging ears 5 in a square on the top of the heat preservation cover 6 can ensure the stability and balance during hoisting, so that the hoisting force can be evenly distributed to the four hanging ears 5, and the connecting steel chain 4 is used to connect each group of hanging ears 5, and finally combine into one lifting ring in front and back, and link with the electric hoist 2 through the lifting ring.

[0024] More specifically, the electric hoist 2 is provided with a limit switch and an overload protection device. The limit switch and the overload protection device can further improve the accuracy and safety of the lifting action.

[0025] The utility model discloses a working principle: the heat preservation cover 6 is the groove type structure, and its size should be designed according to the actual size of main iron ditch, and it is guaranteed to realize the overall coverage to the molten iron ditch, when needing to use, the staff can control its electric hoist 2 through the operation panel figure not marked, moves its heat preservation cover 6 through electric hoist 2, makes it heat preservation cover 6 move to the specified position, after moving, its electric hoist 2 can lower heat preservation cover 6, utilizes heat preservation cover 6 to improve the temperature stability in molten iron ditch, is favorable to the separation of liquid slag and iron, reduces the molten iron of blast furnace with slag quantity, heat preservation cover 6 does not influence normal operation, and the heat preservation efficiency of main iron ditch is improved significantly, wherein, the control panel should be installed in the position of the operator's reach, guarantees its button mark clear and understandable, and the operation process is convenient, and also can be designed with the remote control mode and control, and inbuilt emergency lifting button and alarm device in control system, to cope with the possible emergency, ensure the safety of personnel and equipment.

[0026] The above, only to illustrate the technical scheme of the utility model but not limit, the other modification or equivalent replacement of the technical scheme of the utility model of the ordinary skill in the art to the utility model, as long as not departing from the spirit and scope of the utility model technical scheme, should be covered in the utility model claim range.

Claims

1. A high lift heat retaining cover for the main iron run of a blast furnace, characterized in that: It includes steel beam track (1) and heat preservation cover (6), the steel beam track (1) is equipped with electric hoist (2), the lower end of electric hoist (2) is installed with hoist ring (3), hoist ring (3) is provided with connecting steel chain (4), the other end of connecting steel chain (4) is connected with lug (5), and lug (5) is installed on heat preservation cover (6);The heat preservation cover (6) includes heat-resistant steel plate layer (62), the outer side of heat-resistant steel plate layer (62) is wrapped with outer wall insulation layer (61), and the inner side of heat-resistant steel plate layer (62) is provided with inner wall insulation layer (63).

2. The lifting type heat retaining cover for the main iron channel of a blast furnace according to claim 1, characterized in that: Visual windows for the staff to observe the running state of the iron ditch at any time are formed on both sides of the heat preservation cover (6), and a movable door (7) is installed on the visual window through a loose-leaf.

3. The lifting type heat retaining cover for the main iron channel of a blast furnace according to claim 1, characterized in that: The electric hoist (2) is provided with two, and the two electric hoists (2) are respectively arranged on the steel beam track (1).

4. The lifting type heat retaining cover for the main iron channel of a blast furnace according to claim 1, characterized in that: The outer wall insulation layer (61) is made of aluminum skin and steel plate, and the aluminum skin and steel plate are filled with heat-resistant cotton.

5. The lifting type heat retaining cover for the main iron channel of a blast furnace according to claim 1, characterized in that: The inner wall insulation layer (63) is made of aluminum silicate ceramic fiber.

6. The lifting type heat retaining cover for the main iron channel of a blast furnace according to claim 1, characterized in that: The lug (5) is provided with eight, and four are arranged at both ends of the top of the heat preservation cover (6), and the four lugs (5) are arranged in a square manner on the top of the heat preservation cover (6).

7. The lifting type heat retaining cover for the main iron channel of a blast furnace according to claim 1, characterized in that: The electric hoist (2) is provided with a limit switch and an overload protection device.

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