Furnace cover of direct current submerged arc furnace

Abstract

The utility model relates to the technical field of submerged arc furnaces, and discloses a direct-current submerged arc furnace cover which comprises a furnace shell, a first furnace cover plate and a second furnace cover plate, the first furnace cover plate and the second furnace cover plate are hinged to the top of the furnace shell, and a partition plate is arranged between the first furnace cover plate and the second furnace cover plate. A first connector, a second connector, a third connector and a fourth connector are formed in the tops of the first furnace cover plate, the second furnace cover plate and the partition plate, sealing grooves are formed in the inner walls of the furnace shell, the first furnace cover plate, the second furnace cover plate and the partition plate, and opening and closing mechanisms are arranged between the first furnace cover plate and the partition plate and between the second furnace cover plate and the partition plate. The first connector is used for installing an electrode, the second connector is used for installing a material pipe, the third connector is used for installing a clean flue gas chimney, the fourth connector is used for installing a waste flue gas chimney, the sealing groove is arranged for placing a sealing ring, and the opening and closing mechanism is arranged for improving the convenience when the furnace cover and the furnace body are opened and closed. The working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of ore furnace technology, concretely is a direct current ore furnace cover. BACKGROUND

[0002] Ore furnace is a kind of industrial equipment mainly used for reducing smelting ore, carbonaceous reducing agent and solvent and other raw materials.It is also called arc furnace or resistance furnace.The main products of ore furnace include ferrosilicon, manganese iron, chromium iron, tungsten iron, silicon-manganese alloy and other ferroalloy, and these products are important raw materials in metallurgical industry, and also produce calcium carbide and other chemical raw materials.The working principle of ore furnace is based on selective oxidation-reduction reaction thermodynamics.Its basic task is to extract useful elements such as metals from ore or oxide.Specifically, ore furnace heats through arc or resistance, promotes chemical reaction of raw materials to generate the required metal or alloy.

[0003] The products used in the market at present mainly include alternating current power supply ore furnace, low-frequency power supply ore furnace, single-electrode direct current power supply ore furnace and the like, and the above-mentioned equipment can meet smelting requirements, but still has characteristics such as high power consumption, high investment cost, large operation difficulty and serious resource waste, and simultaneously, the cover of existing ore furnace is assembled and connected with furnace body through various fastening bolts, and sealing ring is installed between the cover and the furnace body to improve the sealing property of connection, but the bolt installation procedure is relatively complicated, and it is time-consuming and labor-consuming when the cover is opened and closed, finally leading to reduction of working efficiency. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a direct current ore furnace cover to solve the problems in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a direct current ore furnace cover, comprising a furnace shell, further comprising:

[0006] First cover plate and second cover plate hinged to the top of the furnace shell, a partition plate is arranged between the first cover plate and the second cover plate, the partition plate is fixed to the top of the furnace shell, the top of the first cover plate and the second cover plate is provided with four first interfaces for installing electrodes, the top of the first cover plate, the second cover plate and the partition plate is provided with a plurality of second interfaces for installing material pipes, the first interface and the second interface are in the form of annular array, the top of the first cover plate is provided with a third interface for installing clean flue gas chimney, the top of the second cover plate is provided with a fourth interface for installing raw flue gas chimney, the inner wall of the furnace shell, the first cover plate, the second cover plate and the partition plate is provided with a sealing groove for placing sealing ring, and an opening and closing mechanism for connection is arranged between the first cover plate, the second cover plate and the partition plate.

[0007] Preferably, the opening and closing mechanism comprises vertical plates fixed to one side of the first furnace cover cover plate and the second furnace cover cover plate, and pull plates fixed to the top of the vertical plates and fixed to one side of the first furnace cover cover plate and the second furnace cover cover plate.

[0008] Preferably, the inner wall of the vertical plate is slidably connected with a bolt, and one end of the bolt is fixed with a pull rod.

[0009] Preferably, one side of the pull rod is fixed with two symmetrical first springs, and the two first springs are fixed to one side of the vertical plate.

[0010] Preferably, the inner wall of the partition plate is provided with two symmetrical insertion holes, and the inner wall of each insertion hole is provided with two symmetrical moving grooves.

[0011] Preferably, the inner wall of each moving groove is fixed with a second spring, and one end of the second spring is fixed with a limiting pin.

[0012] Preferably, the outer side of the limiting pin is clamped with a limiting hole, and the limiting hole is arranged in the inner wall of the bolt.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The first interface is arranged for mounting and connecting four electrodes, the second interface is arranged for mounting each material pipe of the ring type trolley material distribution and discharging system, the third interface is arranged for mounting the clean flue gas chimney, the fourth interface is arranged for mounting the raw flue gas chimney, the sealing groove is arranged to place the sealing ring, the sealing property after the furnace cover is closed is improved, the opening and closing mechanism is arranged to improve the convenience when the furnace cover and the furnace body are opened and closed, time and labor are saved, and the working efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A preferred embodiment structure diagram of the direct current electric arc furnace cover provided by the utility model is shown in the figure.

[0016] Figure 2 A structure diagram of the furnace shell furnace cover opening provided by the utility model is shown in the figure.

[0017] Figure 3 A structure diagram of the opening and closing mechanism provided by the utility model is shown in the figure.

[0018] Figure 4 A Figure 3 Enlarged structure diagram of A in the figure.

[0019] In the figure: 1, furnace shell; 2, first furnace cover cover plate; 3, second furnace cover cover plate; 4, partition; 5, first interface; 6, second interface; 7, third interface; 8, fourth interface; 9, sealing groove; 10, opening and closing mechanism; 101, vertical plate; 102, pull plate; 103, bolt; 104, pull rod; 105, first spring; 106, jack; 107, moving groove; 108, second spring; 109, limit pin; 110, limit hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figures 1-4 As shown in the figure, a direct current electric arc furnace cover, comprising a furnace shell 1, by setting the furnace shell 1 can place direct current electric arc furnace, further comprising hinged to the top of the furnace shell 1 first furnace cover cover plate 2 and second furnace cover cover plate 3, by setting the first furnace cover cover plate 2 and second furnace cover cover plate 3 can be sealed to the furnace shell 1, the first furnace cover cover plate 2 and second furnace cover cover plate 3 between the partition 4 is provided, by setting the partition 4 can be used for connecting the first furnace cover cover plate 2 and second furnace cover cover plate 3, the partition 4 is fixed to the top of the furnace shell 1, the top of the first furnace cover cover plate 2 and second furnace cover cover plate 3 are provided with four first interface 5 for installing electrode, by setting the first interface 5 for installing four electrodes, the top of the first furnace cover cover plate 2, second furnace cover cover plate 3 and partition 4 are provided with a plurality of second interface 6 for installing material pipe, by setting the second interface 6 for installing ring type car material and material pipe of discharging system, the first interface 5 and second interface 6 are in the form of ring array, the top of the first furnace cover cover plate 2 is provided with third interface 7 for installing clean flue gas chimney, by setting the third interface 7 for installing clean flue gas chimney, the top of the second furnace cover cover plate 3 is provided with fourth interface 8 for installing raw flue gas chimney, by setting the fourth interface 8 for installing raw flue gas chimney, the inner wall of the furnace shell 1, first furnace cover cover plate 2, second furnace cover cover plate 3 and partition 4 are provided with sealing groove 9 for placing sealing ring, by setting the sealing groove 9 for placing sealing ring, the sealing property of the furnace cover after closing can be improved, the first furnace cover cover plate 2 and second furnace cover cover plate 3 and partition 4 between the opening and closing mechanism 10 for connecting, by setting the opening and closing mechanism 10 can facilitate workers to open and close the furnace cover quickly.

[0022] Please refer to Figure 3 And Figure 4As shown, the opening and closing mechanism 10 includes a vertical plate 101 fixed on one side of the first furnace cover cover plate 2 and the second furnace cover cover plate 3, and the vertical plate 101 can support the movement of the latch 103. The top of the vertical plate 101 is fixed with a pull plate 102, which can pull the first furnace cover cover plate 2 and the second furnace cover cover plate 3 to flip. The pull plate 102 is fixed on one side of the first furnace cover cover plate 2 and the second furnace cover cover plate 3. The inner wall of the vertical plate 101 is slidably connected with the latch 103, which can be connected with the insertion hole 106 through the latch 103, so that the first furnace cover cover plate 2 and the second furnace cover cover plate 3 are connected with the partition plate 4. One end of the latch 103 is fixed with a pull rod 104, which can drive the latch 103 to move. One side of the pull rod 104 is fixed with two symmetrical first springs 105, and the two first springs 105 are fixed on one side of the vertical plate 101. The first spring 105 can be used to reset the latch 103 after moving. The inner wall of the partition plate 4 is provided with two symmetrical insertion holes 106, and the inner wall of the two insertion holes 106 is provided with two symmetrical moving grooves 107. The moving grooves 107 can be installed with the second spring 108. The inner wall of the two moving grooves 107 is fixed with the second spring 108, which can be used to reset the limit pin 109 after moving. One end of the second spring 108 is fixed with the limit pin 109, which can be connected with the limit hole 110 to make the first furnace cover cover plate 2 and the second furnace cover cover plate 3 not loose after being connected with the partition plate 4, thereby improving the stability and sealing performance during connection. The outer side of the limit pin 109 is connected with the limit hole 110, and the limit hole 110 is provided in the inner wall of the latch 103.

[0023] Working principle: the worker puts the sealing ring into the sealing groove 9, closes the first furnace cover cover plate 2 and the second furnace cover cover plate 3, and then the latch 103 on the first furnace cover cover plate 2 and the second furnace cover cover plate 3 is inserted into the insertion hole 106 in the partition plate 4. Then the limit pin 109 in the insertion hole 106 is connected with the limit hole 110 in the latch 103 through the elastic force of the second spring 108. After the furnace cover is closed, the worker installs four electrodes through the first interface 5, installs each pipe of the material distribution and discharging system through the second interface 6, installs the clean flue gas chimney through the third interface 7, and installs the raw flue gas chimney through the fourth interface 8.

[0024] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments that are functionally similar or equivalent in nature. It is further to be understood that the use of relational terms such as first and second, and the like, are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual relationship or order between or among such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0025] While the embodiments of the present application have been shown and described herein, it is to be understood that the application is not limited to these embodiments and that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A direct current (DC) smelting furnace cover comprising a furnace shell (1), characterized in that, Also include: The first furnace cover cover plate (2) and the second furnace cover cover plate (3) are hinged to the top of the furnace shell (1), the partition plate (4) is arranged between the first furnace cover cover plate (2) and the second furnace cover cover plate (3), the partition plate (4) is fixed to the top of the furnace shell (1), the top of the first furnace cover cover plate (2) and the second furnace cover cover plate (3) is provided with four first interfaces (5) for installing electrodes, the top of the first furnace cover cover plate (2), the second furnace cover cover plate (3) and the partition plate (4) is provided with a plurality of second interfaces (6) for installing material pipe, the first interface (5) and the second interface (6) are in the form of ring array, the top of the first furnace cover cover plate (2) is provided with a third interface (7) for installing clean flue gas chimney, the top of the second furnace cover cover plate (3) is provided with a fourth interface (8) for installing raw flue gas chimney, the inner wall of the furnace shell (1), the first furnace cover cover plate (2), the second furnace cover cover plate (3) and the partition plate (4) are provided with sealing grooves (9) for placing sealing rings, the first furnace cover cover plate (2) and the second furnace cover cover plate (3) are provided with opening and closing mechanisms (10) for connecting between the partition plate (4).

2. A direct current (DC) smelting furnace lid as claimed in claim 1, characterized in that: The opening and closing mechanism (10) includes a vertical plate (101) fixed to one side of the first furnace cover cover plate (2) and the second furnace cover cover plate (3), the top of the vertical plate (101) is fixed with a pull plate (102), the pull plate (102) is fixed to one side of the first furnace cover cover plate (2) and the second furnace cover cover plate (3).

3. A direct current (DC) smelting furnace lid as claimed in claim 2, wherein: The inner wall of the vertical plate (101) is slidably connected with a bolt (103), one end of the bolt (103) is fixed with a pull rod (104).

4. A direct current smelting vessel lid as claimed in claim 3 wherein: One side of the pull rod (104) is fixed with two symmetrical first springs (105), both the first springs (105) are fixed to one side of the vertical plate (101).

5. A direct current (DC) smelting furnace lid as claimed in claim 1, characterized in that: The inner wall of the partition plate (4) is provided with two symmetrical insertion holes (106), the inner wall of the two insertion holes (106) is provided with two symmetrical moving grooves (107).

6. A direct current (DC) smelting furnace lid as claimed in claim 5, wherein: The inner wall of the two moving grooves (107) is fixed with a second spring (108), one end of the second spring (108) is fixed with a limiting pin (109).

7. A direct current smelting vessel lid as claimed in claim 6 wherein: The outer side of the limiting pin (109) is clamped with a limiting hole (110), the limiting hole (110) is arranged on the inner wall of the bolt (103).

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