Modular platform for building blast furnace in narrow space and building method

Abstract

The invention discloses a modularized platform for building a blast furnace in a narrow space and a building method, an upper furnace body and a lower furnace body of the platform are composed of a plurality of furnace body modules and a plurality of furnace seat modules, the furnace body modules are connected with the furnace seat modules through connecting nails, the furnace seat modules are mounted above a base station, and the furnace seat modules are connected with the base station through connecting nails. And the furnace body module is arranged on the upper layer of the furnace seat module. The modular platform and the construction method have the beneficial effects that a worker can construct the blast furnace in a narrow space through the modular platform and the construction method, the blast furnace can be constructed only through construction of the furnace body module and the furnace base module, and the same strength and safety can be achieved after construction is completed; as the furnace body module and the furnace seat module can be industrially produced and manufactured, the construction cost and time of the blast furnace can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of blast furnace construction, and particularly relates to a modular platform for constructing a blast furnace in a narrow space and a construction method. BACKGROUND

[0002] A blast furnace is a vertical, tower-like structure made of steel and lined with firebrick. The furnace is divided into five sections: the throat, the stack, the bosh, the belly, and the hearth. The blast furnace is fed with iron ore, coke, and limestone from the top, and preheated air is blown into the bottom of the furnace. The coke is burned by the oxygen in the air to produce carbon monoxide and hydrogen, which reduce the iron ore to produce iron. The molten iron is tapped from the bottom of the furnace, and the slag is removed from the top. The blast furnace produces a large amount of heat, which is used to heat other materials, such as water, to produce steam.

[0003] However, when it is necessary to construct a blast furnace in a narrow space, the large equipment cannot enter the site well, resulting in a relatively high construction difficulty and inconvenience for workers to construct the blast furnace. To solve the above problems, the present application provides the following technical solutions. SUMMARY

[0004] The present application aims to provide a modular platform for constructing a blast furnace in a narrow space and a construction method, which solves the problem that, in the prior art, when it is necessary to construct a blast furnace in a narrow space, the large equipment cannot enter the site well, resulting in a relatively high construction difficulty and inconvenience for workers to construct the blast furnace.

[0005] The object of the present application can be achieved by the following technical solutions: A modular platform for constructing a blast furnace in a narrow space comprises a base, a lower stack fixed on the base, and an upper stack fixed on the lower stack. A small hopper is installed on the top of the upper stack, and a furnace gas pipe is arranged on the small hopper. A furnace body support is fixedly installed on the base, and a ring furnace hot air pipe is fixedly installed on the upper end of the furnace body support. The ring furnace hot air pipe is located at the joint of the upper stack and the lower stack and is in communication with the blast furnace stack. A slag outlet and an iron outlet are installed on the lower stack, and a flow guide groove is formed on the base at the outlets of the slag outlet and the iron outlet. The upper furnace body is composed of several furnace body modules, and the lower furnace body is composed of several furnace base modules.

[0006] As a further scheme of the present application, the upper furnace body and the lower furnace body are both paved with steel plates.

[0007] As a further scheme of the present application, the upper surface of the furnace base module is provided with a connecting thread sink, and the bottom of the furnace base module is fixedly provided with a base connecting plug; The furnace body module is provided with a connecting through hole, and the connecting through hole penetrates the furnace body module from top to bottom; The plurality of connecting nails connected to each other penetrate the plurality of connecting through holes from top to bottom, and the outer threaded column of the lowermost connecting nail is matched and tightened with the connecting thread sink, so as to realize the locking and fixing of the furnace body module and the furnace base module; The base connecting plug of the furnace base module is inserted into the base on the base.

[0008] As a further scheme of the present application, the base connecting plug and the connecting thread sink are both provided with at least four, and the connecting thread sink is located above the base connecting plug; The connecting through hole is provided with at least four, and the four connecting through holes are respectively distributed on the four ends of the furnace body module.

[0009] As a further scheme of the present application, the gaps between the adjacent two furnace body modules and the furnace body module and the furnace base module are filled with a filling agent.

[0010] As a further scheme of the present application, the connecting nail comprises a connecting nail body, the bottom of the connecting nail body is provided with an outer threaded column, the middle part of the top of the connecting nail body is provided with an inner threaded hole, and the outer threaded column and the inner threaded hole are matched with each other.

[0011] A construction method of a modular platform for building a blast furnace in a narrow space, for building the above-mentioned modular platform for building a blast furnace in a narrow space, the method comprising the following steps: S1, site cleaning; S2, constructing a base at a corresponding position, the construction of the base comprising opening a corresponding flow guide groove and a through hole for opening a corresponding base connecting plug; S3, installing several furnace base modules on the base to form a base; S4, laying furnace body modules on the furnace base modules, and connecting the furnace body modules and the furnace base modules by connecting nails; S5, completing the construction of the upper furnace body and the lower furnace body, and constructing a slag notch and a tapping hole; S6, installing a ring furnace hot blast pipe and a furnace body support; S7, laying a small hopper and a furnace gas pipe; S8, filling gaps; S9, laying steel plate on the outer wall of the furnace body.

[0012] Advantages of the present application: The modular platform and construction method enable the workers to construct the blast furnace in a narrow space, and the construction of the blast furnace can be completed by assembling the furnace body module and the furnace base module. After the construction is completed, the blast furnace has the same strength and safety. Since the furnace body module and the furnace base module can be industrially produced and manufactured, the construction cost and time of the blast furnace can be effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] The present application will be further described below with reference to the drawings.

[0014] Figure 1 is a structural schematic diagram of the present application; Figure 2 is an exploded state schematic diagram of the furnace body module and the furnace base module in the present application; Figure 3 is a structural schematic diagram of the furnace body module in the present application; Figure 4 is Figure 3 is a corresponding top view structural schematic diagram; Figure 5 is a structural schematic diagram of the connecting nail in the present application; Figure 6 is a sectional view structural schematic diagram of the connecting nail in the present application; Figure 7 is a structural schematic diagram of the furnace base module in the present application; Figure 8 is a combined state schematic diagram of the furnace body module and the furnace base module in the present application.

[0015] Marked: 1, small hopper; 2, furnace gas pipe; 3, upper furnace body; 4, ring furnace hot air pipe; 5, lower furnace body; 6, slag outlet; 7, base; 8, flow guide groove; 9, tapping hole; 10, furnace body support; 11, furnace body module; 12, connecting nail; 13, furnace base module; 14, connecting through hole; 15, base connection plug; 16, connecting thread groove; 121, internal thread hole; 122, connecting nail body; 123, external thread column. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0017] A kind of modular platform for building blast furnace in narrow space, such as Figures 1 to 8 As shown, including base 7, lower furnace body 5 fixed on base 7 and upper furnace body 3 fixed on lower furnace body 5; The surface of the upper furnace body 3 and the lower furnace body 5 is paved with steel plate;The top of the upper furnace body 3 is provided with a small hopper 1, and the small hopper 1 is provided with a furnace gas pipe 2;The base 7 is fixedly provided with a furnace body support 10, and the upper end of the furnace body support 10 is fixedly provided with a ring furnace hot blast pipe 4;The ring furnace hot blast pipe 4 is located at the junction of the upper furnace body 3 and the lower furnace body 5, and is communicated with the blast furnace body; The lower furnace body 5 is provided with a slag outlet 6 and a tapping hole 9, and the base 7 is provided with a flow guide groove 8 at the outlet of the slag outlet 6 and the tapping hole 9; The upper furnace body 3 is composed of a plurality of furnace body modules 11, and the lower furnace body 5 is composed of a plurality of furnace seat modules 13; The upper surface of the furnace seat module 13 is provided with a connecting thread sink groove 16, and the bottom of the furnace seat module 13 is fixedly provided with a base connecting plug 15;The connecting thread sink groove 16 and the base connecting plug 15 are each provided with at least four, and the connecting thread sink groove 16 is located above the base connecting plug 15; The furnace body module 11 is provided with a connecting through hole 14, and the connecting through hole 14 penetrates the furnace body module 11 vertically;The connecting through hole 14 is provided with at least four, and the four connecting through holes 14 are respectively distributed on the four ends of the furnace body module 11; The upper and lower adjacent two furnace body modules 11 and the upper and lower adjacent furnace body modules 11 and furnace seat modules 13 are connected by a plurality of connected connecting nails 12; After the upper furnace body 3 and the lower furnace body 5 are assembled, the gaps between the adjacent two furnace body modules 11 and the furnace body module 11 and the furnace seat module 13 are filled with a caulking agent to ensure the sealing of the blast furnace as a whole.

[0018] Specifically: The plurality of connecting nails 12 are connected to each other and penetrate the plurality of connecting through holes 14 vertically, and the outer thread column 123 of the lowermost connecting nail 12 is matched and tightened with the connecting thread sink groove 16, so as to realize the locking and fixing of the furnace body module 11 and the furnace seat module 13 The base connecting plug 15 on the furnace seat module 13 can be inserted into the base 7; The connecting nail 12 comprises a connecting nail body 122, the bottom of the connecting nail body 122 is provided with an outer thread column 123, the middle of the top of the connecting nail body 122 is provided with an inner thread hole 121, and the outer thread column 123 and the inner thread hole 121 are matched with each other; Through the cooperation between the external thread column 123 and the internal thread hole 121, the multiple connecting nails 12 can be connected, thereby prolonging the length of the connecting nail 12 and ensuring the strength of the adjacent two furnace body modules 11.

[0019] The construction method of the modular platform for constructing a blast furnace in a narrow space comprises the following steps: S1, site cleaning: clean the relevant site according to the space, to facilitate subsequent construction and construction; S2, casting of the base 7: constructing the base 7 at the corresponding position to facilitate subsequent construction and construction, wherein the construction of the base 7 should include opening the corresponding flow guide groove 8 and opening the corresponding through hole; S3, laying of the hearth module 13: installing a plurality of hearth modules 13 on the base 7 that has been constructed, and enclosing the base by the plurality of hearth modules 13; S4, laying of the furnace body module 11: laying the furnace body module 11 on the hearth module 13 and connecting the furnace body module 11 and the hearth module 13 by the connecting nail 12; S5, completion of the construction of the upper furnace body 3 and the lower furnace body 5: completing the construction of the upper furnace body 3 and the lower furnace body 5 by laying the furnace body module 11 and the connecting nail 12, wherein the corresponding slag notch 6 and the tapping hole 9 should be constructed by the workers; S6, installation of the ring furnace hot blast pipe 4 and the furnace body support 10: installing the furnace body support 10 on the base 7 and installing the upper ring furnace hot blast pipe 4 at the upper end of the furnace body support 10, so that the ring furnace hot blast pipe 4 is communicated with the blast furnace body; S7, laying of the small hopper 1: laying the small hopper 1 on the upper furnace body 3 that has been completed and installing the upper furnace gas pipe 2 on the small hopper 1; S8, filling of gaps: filling the gaps between the plurality of furnace body modules 11 and the plurality of hearth modules 13 with a gap filling agent to ensure the overall sealing and safety; S9, laying of the steel plate: laying the steel plate on the outer wall of the completed furnace body; S10, completion.

[0020] The above content is only an example and description of the present application, and those skilled in the art can make various modifications or supplements or use similar ways to replace the described specific embodiments, as long as they do not deviate from the scope of the invention or exceed the scope defined by the present claims.

Claims

1. A modular platform for constructing a blast furnace in a confined space, characterized in that, It includes a base (7), a lower furnace body (5) fixed on the base (7), and an upper furnace body (3) fixed on the lower furnace body (5); A small hopper (1) is installed on the top of the upper furnace body (3), and a furnace gas pipe (2) is provided on the small hopper (1). A furnace body support (10) is fixedly installed on the base (7). A ring furnace hot air pipe (4) is fixedly installed at the upper end of the furnace body support (10). The ring furnace hot air pipe (4) is located at the junction of the upper furnace body (3) and the lower furnace body (5). The ring furnace hot air pipe (4) is connected to the blast furnace body. The lower furnace body (5) is equipped with a slag outlet (6) and an iron outlet (9), and the base (7) is provided with a guide groove (8) at the outlet of the slag outlet (6) and the iron outlet (9); The upper furnace body (3) is composed of several furnace body modules (11), and the lower furnace body (5) is composed of several furnace base modules (13).

2. The modular platform for constructing a blast furnace in a confined space according to claim 1, characterized in that, The surfaces of both the upper furnace body (3) and the lower furnace body (5) are covered with steel plates.

3. The modular platform for constructing a blast furnace in a confined space according to claim 1, characterized in that, The upper surface of the furnace base module (13) is provided with a connecting thread groove (16), and the bottom of the furnace base module (13) is fixedly installed with a base connecting plug (15). Each furnace body module (11) is provided with a connecting through hole (14), which runs through the furnace body module (11) from top to bottom; Multiple interconnected connecting pins (12) pass through multiple upper and lower connecting through holes (14), and the external thread post (123) of the connecting pin (12) at the bottom engages with the connecting thread countersunk groove (16) to tighten, thereby achieving the locking and fixing of the furnace body module (11) and the furnace base module (13); The base connection plug (15) on the furnace base module (13) is inserted into the base plate (7).

4. The modular platform for constructing a blast furnace in a confined space according to claim 3, characterized in that, The base connector (15) and the connecting thread countersunk (16) are each provided with at least four, and the connecting thread countersunk (16) is located above the base connector (15); The connection through holes (14) are provided with at least four, and the four connection through holes (14) are respectively distributed on the four ends of the furnace body module (11).

5. A modular platform for constructing a blast furnace in a confined space according to claim 4, characterized in that, The gaps between two adjacent furnace body modules (11) and between the furnace body module (11) and the furnace base module (13) are filled with sealant.

6. A modular platform for constructing a blast furnace in a confined space according to claim 3, characterized in that, The connecting pin (12) includes a connecting pin body (122), the bottom of the connecting pin body (122) is provided with an external thread post (123), and the middle of the top of the connecting pin body (122) is provided with an internal thread hole (121), and the external thread post (123) and the internal thread hole (121) cooperate with each other.

7. A method for constructing a modular platform for building a blast furnace in a confined space, used to construct the modular platform for building a blast furnace in a confined space as described in claims 1 to 6, the method comprising the following steps: S1. Site cleanup; S2. Construct the base (7) at the corresponding position. The construction of the base (7) includes opening the corresponding guide channel (8) and opening the through hole of the corresponding base connection plug (15). S3. Install several furnace base modules (13) on the base (7) to form a base; S4. Lay the furnace body module (11) on the furnace base module (13) and connect the furnace body module (11) and the furnace base module (13) using connecting nails (12); S5. Complete the construction of the upper furnace body (3) and the lower furnace body (5), and construct the slag outlet (6) and the iron outlet (9); S6. Install the hot air pipe (4) of the ring furnace and the furnace body support (10); S7. Lay out the small hopper (1) and the furnace gas pipe (2); S8. Fill the gaps; S9, steel plates are laid on the outer wall of the furnace body.

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