CN111595144A

CN111595144A - Electric arc furnace is used in refractory material production with environmental protection

Info

Publication number: CN111595144A
Application number: CN202010447351.2A
Authority: CN
Inventors: 徐伟忠
Original assignee: Changxing Zhongtai Refractory Material Co ltd
Current assignee: Changxing Zhongtai Refractory Material Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2020-08-28

Abstract

The invention belongs to the technical field of electric arc furnaces, and discloses an electric arc furnace with an environment-friendly function for producing refractory materials, which comprises a furnace body, wherein a furnace cover is arranged at the top of the furnace body, a molten iron groove is formed in the bottom inside the furnace body, an electrode rod penetrates through the middle of the top of the furnace cover, the bottom end of the electrode rod extends to the inside of the furnace body, liquid guide pipes are respectively arranged on two sides of the bottom of the molten iron groove, one end of each liquid guide pipe extends to the outside of the furnace body, a cavity groove is formed between the outer wall and the inner wall of the furnace body, a fixed pipe is arranged inside the cavity groove, and two ends of each fixed pipe extend to the inside of the furnace body. Energy conservation and environmental protection, and improves the utilization rate of resources.

Description

Electric arc furnace is used in refractory material production with environmental protection

Technical Field

The invention belongs to the technical field of electric arc furnaces, and particularly relates to an electric arc furnace with an environment-friendly function and used for producing refractory materials.

Background

The electric arc furnace is an electric furnace for smelting ores and metals at high temperature generated by utilizing electrode arc, the energy is concentrated when the gas discharge forms the electric arc, the temperature of an arc zone is more than 3000 ℃, the process flexibility of the electric arc furnace is higher than that of other steel-making furnaces for smelting the metals, impurities such as sulfur, phosphorus and the like can be effectively removed, the furnace temperature is easy to control, the occupied area of equipment is small, and the electric arc furnace is suitable for smelting high-quality alloy steel.

In the chinese patent of patent No. CN201920015179.6, an arc furnace for refractory production with environmental protection function is disclosed, the device is through setting up the silica gel cotton in order to reduce the calorific loss of furnace body, but the heat preservation effect of furnace body is relatively poor in the in-service use, lead to heat loss too fast, and at the bottom of the heat utilization rate, thereby influence the result of use of device, in addition, the device has inserted the electrode bar at the top of bell, so that melt iron material, but the electrode bar is difficult for dismantling, thereby be difficult to maintain or change it, and be difficult to make the electrode bar connect when inserting firmly.

Disclosure of Invention

The invention aims to provide an electric arc furnace with an environment-friendly function for producing refractory materials, which aims to solve the problems of poor heat preservation effect, too fast heat loss, difficult disassembly of an electrode bar and unstable connection in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an electric arc furnace is used in refractory material production with environmental protection, includes the furnace body, the bell is installed at the top of furnace body, and the inside bottom of furnace body has seted up the liquid iron groove, it has the electrode bar to run through in the middle of the top of bell, the bottom of electrode bar extends to the inside of furnace body, the catheter is all installed to the bottom both sides of liquid iron groove, two the one end of catheter all extends to the outside of furnace body, the chamber groove has been seted up between the outer wall of furnace body and the inner wall, the internally mounted of chamber groove has fixed pipe, the both ends of fixed pipe all extend to the inside of furnace body, and the outer wall of fixed pipe installs fixed cover, fixed pipe is connected with the inner wall in chamber groove through fixed cover, the hot plate is all installed back to the top both.

Preferably, the outer wall one end of electrode bar is close to the top of bell and installs solid fixed ring, gu fixed ring's bottom is connected with the snap ring, seted up in the middle of the top of furnace body with snap ring assorted draw-in groove, and the top both ends of furnace body are close to one side of draw-in groove and have all seted up the spacing groove, gu fixed ring's bottom both ends are close to one side of snap ring and have all installed the go-between, the one end that the go-between extends to the spacing inslot portion is fixed with the.

Preferably, the top of the molten iron tank is provided with a refractory heat-insulating brick, and the heat-returning plate is of an arc structure.

Preferably, the inner wall of the clamping groove is provided with a rubber pad, and the outer wall of the rubber pad is provided with an anti-slip groove.

Preferably, the bottom of the furnace body is provided with a backing plate, and the bottom of the backing plate is provided with a bulge.

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the invention, through the matching of the cavity groove, the fixed sleeve, the fixed pipe and the heat return plate, the heat loss rate in the furnace body can be reduced, the heat loss in the furnace is reduced, the heat preservation capability of the furnace body is improved, meanwhile, part of hot gas can be circulated in a backflow manner, the energy is saved, the environment is protected, and the resource utilization rate is improved.

(2) According to the invention, the electrode bar can be quickly mounted or dismounted on the furnace cover through the matching of the clamping ring, the clamping groove, the fixing ring, the connecting ring, the limiting block and the limiting groove, so that the electrode bar is dismounted and mounted, the connection is tight and stable, and the working efficiency during operation is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 1;

in the figure: 1-furnace body; 2-furnace cover; 3-a liquid iron tank; 4-electrode bar; 5-a catheter; 6-cavity groove; 7-a fixed tube; 8, fixing a sleeve; 9-a heat return plate; 10-a fixed ring; 11-a snap ring; 12-a card slot; 13-a limiting groove; 14-a connecting ring; 15-a limiting block; 16-a rubber pad; 17-backing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following technical solutions: an electric arc furnace with an environment-friendly function for producing refractory materials comprises a furnace body 1, a furnace cover 2 is installed at the top of the furnace body 1, a molten iron groove 3 is formed in the bottom of the furnace body 1, an electrode rod 4 penetrates through the middle of the top of the furnace cover 2, the bottom of the electrode rod 4 extends into the furnace body 1, liquid guide pipes 5 are installed on two sides of the bottom of the molten iron groove 3, one ends of the two liquid guide pipes 5 extend to the outside of the furnace body 1, a cavity groove 6 is formed between the outer wall and the inner wall of the furnace body 1, a fixed pipe 7 is installed inside the cavity groove 6, two ends of the fixed pipe 7 extend into the furnace body 1, a fixed sleeve 8 is installed on the outer wall of the fixed pipe 7, the fixed pipe 7 is connected with the inner wall of the cavity groove 6 through the fixed sleeve 8, heat return plates 9 are installed on two sides of the top of the furnace body 1, the cavity groove 6 is arranged inside the, so as to improve furnace body 1's heat preservation ability, steam in the furnace body 1 can flow in fixed pipe 7 simultaneously, thereby further reduction stove heat loss, and can strengthen the thermal-insulated effect of heat preservation of chamber groove 6 once more after fixed pipe 7 stores the heat, can make the partial steam that rises to furnace body 1 top backward flow to the below through heat recovery board 9, so that carry out recycling to steam, thereby make the device have good heat preservation energy-saving effect, the utilization ratio of resource has been improved, use the environmental protection reliably.

Further, a fixing ring 10 is installed at one end of the outer wall of the electrode rod 4, which is close to the upper portion of the furnace cover 2, the bottom of the fixing ring 10 is connected with a clamping ring 11, a clamping groove 12 matched with the clamping ring 11 is formed in the middle of the top of the furnace body 1, a limiting groove 13 is formed in one side of each of two ends of the top of the furnace body 1, which is close to the clamping groove 12, a connecting ring 14 is installed at one side of each of two ends of the bottom of the fixing ring 10, which is close to the clamping ring 11, a limiting block 15 is fixed at one end of the connecting ring 14, which extends to the inner portion of the limiting groove 13, the clamping ring 11 is inserted into the clamping groove 12 in the using process of the electrode rod 4, the clamping ring 11 and the clamping groove 12 are clamped with each other, then the fixing ring 10 is rotated, the connecting ring 14 drives the limiting block 15 to slide and fix in the limiting groove 13, so that the fixing, and then be convenient for the dismantlement and the installation of electrode bar 4, and connect closely firm, improved the work efficiency when operating.

Furthermore, the top of the molten iron tank 3 is provided with a fireproof heat insulation brick which plays a role of fireproof heat insulation, and the heat regeneration plate 9 is of an arc-shaped structure.

Specifically, rubber pad 16 is installed to the inner wall of draw-in groove 12, and rubber pad 16 plays firm effect, and anti-skidding groove has been seted up to the outer wall of rubber pad 16.

Specifically, the bottom of the furnace body 1 is provided with a backing plate 17, the backing plate 17 plays a role of skid resistance, and the bottom of the backing plate 17 is provided with a bulge.

The working principle and the using process of the invention are as follows: when the device is used, firstly, an iron material is placed on an iron liquid groove 3 in a furnace body 1, then the furnace cover 2 is closed, an electrode rod 4 is inserted on the furnace cover 2, the bottom end of the electrode rod is contacted with the iron material, the clamping ring 11 is inserted into the clamping groove 12, the clamping ring 11 is clamped with the clamping groove 12, then the fixing ring 10 is rotated, the connecting ring 14 drives the limiting block 15 to slide and fix in the limiting groove 13, so that the fixing ring 10 is firmly fixed on the furnace cover 2, the electrode rod 4 can be stably connected with the furnace cover 2, then the device can be normally used after the wiring seat at the top end of the electrode rod 4 is connected with a power supply, electric arc heating is generated between the electrode rod 4 and the iron material to melt the iron material, then the cavity groove 6 in the furnace body 1 can reduce the heat loss rate so as to improve the heat preservation capability of the furnace body 1, and meanwhile, hot gas in the furnace body 1 can flow into the fixing pipe 7, thereby, and the fixed pipe 7 can strengthen the heat preservation and insulation effect of the cavity groove 6 again after storing heat, and part of hot air rising to the top of the furnace body 1 can flow back to the lower part through the heat returning plate 9 so as to recycle the hot air, so that the device has good heat preservation and energy saving effects, the utilization rate of resources is improved, and the use is environment-friendly and reliable.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an electric arc furnace is used in refractory material production with environmental protection, its characterized in that: including furnace body (1), bell (2) are installed at the top of furnace body (1), and the inside bottom of furnace body (1) has seted up liquid iron bath (3), it has electrode bar (4) to run through in the middle of the top of bell (2), the bottom of electrode bar (4) extends to the inside of furnace body (1), catheter (5) are all installed to the bottom both sides of liquid iron bath (3), two the one end of catheter (5) all extends to the outside of furnace body (1), chamber groove (6) have been seted up between the outer wall of furnace body (1) and the inner wall, the internally mounted of chamber groove (6) has fixed pipe (7), the both ends of fixed pipe (7) all extend to the inside of furnace body (1), and the outer wall of fixed pipe (7) installs fixed cover (8), fixed pipe (7) are connected with the inner wall of chamber groove (6) through fixed cover (8), and the two sides of the top of the furnace body (1) are provided with heat return plates (9).

2. The electric arc furnace for producing environment-friendly refractory material according to claim 1, wherein: the utility model discloses a furnace cover, including the outer wall of electrode bar (4), the top that outer wall one end of electrode bar (4) is close to bell (2) is installed solid fixed ring (10), the bottom of solid fixed ring (10) is connected with snap ring (11), offer in the middle of the top of furnace body (1) with snap ring (11) assorted draw-in groove (12), and the top both ends of furnace body (1) are close to one side of draw-in groove (12) and have all seted up spacing groove (13), go-between (14) are all installed to one side that the bottom both ends of solid fixed ring (10) are close to snap ring (11), go-between (14) extend to spacing groove (13).

3. The electric arc furnace for producing environment-friendly refractory material according to claim 1, wherein: the top of the liquid iron groove (3) is provided with a fireproof heat insulation brick, and the heat recovery plate (9) is of an arc-shaped structure.

4. The electric arc furnace for producing environment-friendly refractory material according to claim 2, wherein: a rubber pad (16) is installed on the inner wall of the clamping groove (12), and an anti-slip groove is formed in the outer wall of the rubber pad (16).

5. The electric arc furnace for producing environment-friendly refractory material according to claim 1, wherein: the bottom of furnace body (1) is installed backing plate (17), the bottom of backing plate (17) is provided with the arch.