CN212404151U

CN212404151U - Electric arc furnace carbon powder gun

Info

Publication number: CN212404151U
Application number: CN202020344517.3U
Authority: CN
Inventors: 王冬福
Original assignee: Hubei Lijin Iron And Steel Group Co ltd; Tianjin Yijia Energy Conservation And Environmental Protection Technology Co ltd; Zunyi Fuxin Special Steel Equipment Manufacturing Co ltd; Guangxi Guigang Iron And Steel Group Co ltd
Current assignee: Hubei Lijin Iron And Steel Group Co ltd; Tianjin Yijia Energy Conservation And Environmental Protection Technology Co ltd; Zunyi Fuxin Special Steel Equipment Manufacturing Co ltd; Guangxi Guigang Iron And Steel Group Co ltd
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2021-01-26
Anticipated expiration: 2030-03-18

Abstract

The utility model relates to an electric arc furnace steelmaking equipment technical field discloses an electric arc furnace carbon powder rifle, including the rifle body and through flange with the carbon powder input channel of the rifle body, the rifle body has set gradually outer pipe, water proof seamless steel pipe and inlayer wear-resisting carbon powder pipe from outside to inside, constitute cooling water outlet passage between outer pipe and the water proof seamless steel pipe, constitute cooling water inlet passage between water proof seamless steel pipe and the inlayer wear-resisting carbon powder pipe, inlayer wear-resisting carbon powder pipe with carbon powder input channel intercommunication is in order to constitute the carbon powder passageway, the inlayer wear-resisting carbon powder pipe is kept away from carbon powder input channel one end can dismantle and be connected with removable ceramic pipe; the front ceramic tube of the inner wear-resistant carbon powder tube of the wear-resistant carbon powder gun can be replaced, the problem of water leakage caused by abrasion of the head part of the carbon powder gun is solved, the service life of the carbon powder gun is prolonged, the cost of the carbon powder gun is reduced, and thermal shutdown or production accidents caused by damage of the carbon gun are reduced.

Description

Electric arc furnace carbon powder gun

Technical Field

The utility model relates to an electric arc furnace steelmaking equipment technical field, concretely relates to electric arc furnace carbon powder rifle.

Background

The electric arc furnace steelmaking technology of China is widely popularized everywhere, carbon powder injection foaming slag is a method which must be adopted for electric arc furnace smelting, a carbon powder gun for the electric arc furnace generally adopts a common seamless pipe or a whole ceramic pipe as a central pipe, and the replacement is carried out after the wear of the seamless pipe or the head of the central pipe is burnt. If the replacement is not timely, the inner layer pipe of the carbon gun or the front copper head of the carbon gun is abraded, the carbon gun leaks water, and the thermal shutdown or production accidents are easy to generate. The method for solving the problem is to adopt the ceramic wear-resistant pipe as the inner layer pipe, and the head part which is easy to burn at the front part adopts the replaceable ceramic pipe, so that the service life of the carbon powder spray gun is prolonged, the manufacturing cost of the carbon powder spray gun is reduced, and the thermal shutdown of a manufacturer is reduced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an electric arc furnace carbon powder rifle, the anterior ceramic pipe of the wear-resisting carbon powder pipe of inlayer of this wear-resisting carbon powder rifle can be changed, solves the wearing and tearing of carbon powder rifle head and changes the problem of leaking, increases the carbon powder rifle life-span, reduces carbon powder rifle cost, reduces because of the heat shut down or the production accident that the carbon rifle damaged and cause.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides an electric arc furnace carbon powder rifle, including the rifle body and through flange with the carbon powder input channel of the rifle body, the rifle body is by outer to interior outer pipe, water proof seamless steel pipe and the wear-resisting carbon powder pipe of inlayer of having set gradually, constitute cooling water outlet channel between outer pipe and the water proof seamless steel pipe, constitute cooling water inlet channel between water proof seamless steel pipe and the wear-resisting carbon powder pipe of inlayer, the wear-resisting carbon powder pipe of inlayer with carbon powder input channel intercommunication is in order to constitute the carbon powder passageway, the wear-resisting carbon powder pipe of inlayer is kept away from carbon powder input channel one end can be dismantled and be connected with removable ceramic pipe.

Preferably, one end, far away from the carbon powder input channel, of the inner-layer wear-resistant carbon powder pipe is provided with a quick connector I, and the replaceable ceramic pipe is provided with a quick connector II matched with the quick connector I.

Preferably, a copper head is welded at the front end of the outer layer pipe.

Preferably, the copper head is welded and fixed with the inner wear-resistant carbon powder pipe through a front pipe of the inner pipe.

Preferably, one end of the outer-layer pipe, which is far away from the copper head, is connected with a water return ring sleeve, one end of the inner-layer wear-resistant carbon powder pipe, which is far away from the copper head, is connected with a water inlet ring, and the water return ring sleeve is provided with a water return interface; the water inlet ring is provided with a water inlet connector, and the water-proof seamless steel pipe isolates the water return connector from the water inlet connector.

Preferably, the carbon powder input channel is further connected with a filtering wear-resistant box, the other end of the filtering wear-resistant box is connected with an end portion wear-resistant carbon powder pipe, and the end portion wear-resistant carbon powder pipe is provided with a quick connector III.

Preferably, the powder filter further comprises a manual powder discharging system, and the manual powder discharging system is used for manually discharging powder from the filter wear-resistant box.

Preferably, the manual powder discharging system is a manual ball valve arranged on the filtering wear-resistant box.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a wear-resisting carbon powder pipe of inlayer has adopted wear-resisting ceramic pipe as central carbon powder pipe in the wear-resisting carbon powder rifle, and the anterior ceramic pipe of the wear-resisting carbon powder pipe of inlayer can be changed, solves the wearing and tearing of carbon powder rifle head and changes the problem of leaking, increases the carbon powder rifle life-span, reduces carbon powder rifle cost, reduces because of the heat shut down or the production accident that the carbon gun damaged and cause.

Drawings

FIG. 1 is a schematic structural diagram of a carbon powder gun of an electric arc furnace according to the present embodiment.

FIG. 2 is a schematic flow diagram of cooling water of the carbon powder gun of the electric arc furnace according to the present embodiment.

FIG. 3 is a schematic view illustrating the flow of toner in the toner gun of the electric arc furnace according to the present embodiment.

In the drawings: 10-gun body, 11-outer layer pipe, 12-water-resisting seamless steel pipe, 13-inner layer wear-resistant carbon powder pipe, 14-replaceable ceramic pipe, 15-copper head, 16-inner layer pipe front pipe, 17-water return ring sleeve, 171-water return interface, 18-water inlet ring, 181-water inlet interface, 20-carbon powder input channel, 21-filtering wear-resistant box, 22-end wear-resistant carbon powder pipe and 23-manual powder discharge system.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, a preferred embodiment of the present invention provides an electric arc furnace carbon powder gun, which includes a gun body 10 and a carbon powder input channel 20 connected to the gun body 10 via a connecting flange, wherein the gun body 10 is sequentially provided with an outer tube 11, a water-proof seamless steel tube 12 and an inner wear-resistant carbon powder tube 13 from outside to inside, and the inner wear-resistant carbon powder tube 13 adopts a ceramic wear-resistant tube as a central carbon powder tube;

constitute cooling water outlet passage between outer pipe 11 and the water proof seamless steel pipe 12, constitute cooling water inlet passage between water proof seamless steel pipe 12 and the wear-resisting carbon powder pipe 13 of inlayer, the wear-resisting carbon powder pipe 13 of inlayer with carbon powder input channel 20 intercommunication is in order to constitute the carbon powder passageway, the wear-resisting carbon powder pipe 13 of inlayer is kept away from carbon powder input channel 20 one end can be dismantled and be connected with removable ceramic tube 14, is about to make removable ceramic tube central carbon powder pipe head, solves carbon powder rifle head wearing and tearing and changes the problem of leaking, increases the carbon powder rifle life-span, reduces carbon powder rifle cost, reduces because of the heat shut down or the production accident that the carbon rifle damaged and cause.

In this embodiment, one end of the inner wear-resistant carbon powder tube 13, which is far away from the carbon powder input channel 20, is provided with a quick coupling I, the replaceable ceramic tube 14 is provided with a quick coupling II matched with the quick coupling I, and the quick coupling I and the quick coupling II adopt the existing coupling, so that the inner wear-resistant carbon powder tube 13 and the replaceable ceramic tube 14 can be connected or replaced easily and conveniently.

In the embodiment, a copper head 15 is welded at the front end of the outer layer pipe 11, and the copper head 15 is welded and fixed with the inner layer wear-resistant carbon powder pipe 13 through an inner layer pipe front pipe 16; so that the front end of the gun body 10 is closed to form a complete cooling water flow passage.

In this embodiment, one end of the outer layer pipe 11, which is far away from the copper head 15, is connected with a water return ring sleeve 17, one end of the inner layer wear-resistant carbon powder pipe 13, which is far away from the copper head 15, is connected with a water inlet ring 18, the water return ring sleeve 17 is provided with a water return interface 171, and the water return interface 171 is connected with a cooling water return pipeline; the water inlet ring 18 is provided with a water inlet connector 181, and the water inlet connector 181 is connected with a cooling water inlet pipeline; the water-resisting seamless steel pipe 12 isolates the water return interface 171 from the water inlet interface 181, ensures that cooling water flows through the cooling water inlet channel to the cooling water outlet channel, and finally flows out of the water return interface 171.

In this embodiment, carbon powder input channel 20 still is connected with filters wear-resisting box 21, it is connected with tip wear-resisting carbon powder pipe 22 to filter the wear-resisting carbon powder of box 21 other end, tip wear-resisting carbon powder pipe 22 is equipped with quick-operation joint III, and quick-operation joint III also adopts current joint, can connect the carbon powder bin.

In the embodiment, the powder filter further comprises a manual powder discharging system 23, wherein the manual powder discharging system 23 is used for manually discharging powder from the filter wear-resistant box 21; specifically, the manual powder discharging system 23 is a manual ball valve arranged on the filtering wear-resistant box 21, and carbon powder remained on the filtering wear-resistant box 21 is removed by manually opening the ball valve, so that the service time of the filtering wear-resistant box 21 is prolonged.

The working principle is as follows:

the wear-resistant carbon powder gun is characterized in that a gun body 10 is formed by welding a copper head 15, an outer layer pipe 11, a water-proof seamless steel pipe 12, an inner layer wear-resistant carbon powder pipe 13, a replaceable ceramic pipe 14, an inner layer pipe front pipe 16, a water return ring sleeve 17 and a water inlet ring 18, and the gun body 10 and a carbon powder input channel 20 are fixed through a connecting flange; carbon powder flows into the inner-layer wear-resistant carbon powder tube 13 and the replaceable ceramic tube 14 from the carbon powder input channel 20 to the electric arc furnace; cooling water enters from the water inlet connector 181, flows through the cooling water inlet channel to the cooling water outlet channel, and flows out from the water return connector 171 to cool the gun body 10;

after the replaceable ceramic tube 14 at the front end of the inner wear-resistant carbon powder tube 13 is burnt, the quick joint I and the quick joint II are loosened, the replaceable ceramic tube 14 can be replaced with a new one, the operation is simple and convenient, the abrasion of the copper head of the carbon powder gun is reduced, the water leakage point in the furnace is reduced, the accident rate is reduced, and the production cost is reduced.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims

1. The utility model provides an electric arc furnace carbon powder rifle, including the rifle body (10) and through flange with carbon powder input channel (20) of the rifle body (10), the rifle body (10) by outer to interior outer pipe (11), water proof seamless steel pipe (12) and the wear-resisting carbon powder pipe of inlayer (13) of having set gradually, constitute cooling water outlet passage between outer pipe (11) and water proof seamless steel pipe (12), constitute cooling water inlet passage between water proof seamless steel pipe (12) and the wear-resisting carbon powder pipe of inlayer (13), the wear-resisting carbon powder pipe of inlayer (13) with carbon powder input channel (20) intercommunication is in order to constitute the carbon powder passageway, its characterized in that, wear-resisting carbon powder pipe of inlayer (13) is kept away from carbon powder input channel (20) one end can be dismantled and be connected with removable ceramic pipe (14).

2. An electric arc furnace toner gun as claimed in claim 1, characterized in that the end of the inner wear resistant toner tube (13) remote from the toner inlet channel (20) is provided with a quick coupling I, and the replaceable ceramic tube (14) is provided with a quick coupling II matching the quick coupling I.

3. Electric arc furnace toner gun according to claim 1, characterized in that a copper head (15) is welded to the front end of the outer tube (11).

4. Electric arc furnace toner gun according to claim 3, characterized in that the brass head (15) is welded to the inner wear resistant toner tube (13) by means of an inner tube front tube (16).

5. The electric arc furnace carbon powder gun according to claim 4, wherein a water return ring sleeve (17) is connected to one end of the outer layer pipe (11) far away from the copper head (15), a water inlet ring (18) is connected to one end of the inner layer wear-resistant carbon powder pipe (13) far away from the copper head (15), and a water return interface (171) is arranged on the water return ring sleeve (17); the water inlet ring (18) is provided with a water inlet interface (181), and the water return interface (171) is isolated from the water inlet interface (181) by the waterproof seamless steel pipe (12).

6. An electric arc furnace toner gun as claimed in claim 1, characterized in that the toner inlet channel (20) is further connected to a filter cartridge (21), the other end of the filter cartridge (21) is connected to an end wear-resistant toner tube (22), and the end wear-resistant toner tube (22) is provided with a quick coupling III.

7. Electric arc furnace toner gun according to claim 6, further comprising a manual powder discharge system (23), said manual powder discharge system (23) being adapted to perform manual powder discharge of said filter cartridge (21).

8. Electric arc furnace toner gun according to claim 7, characterized in that the manual powder discharge system (23) is a manual ball valve provided on the filter cartridge (21).