CN207610552U - A movable tapping equipment matched with ferroalloy submerged arc furnace - Google Patents

Abstract

The utility model discloses a movable iron-discharging device matched with an iron-alloy ore-fired furnace, belonging to the field of metallurgical technology, to solve the problems of separation of ferroalloy slag and iron and recovery of harmful metals. The device comprises an iron-discharging platform and a bracket arranged below the iron-discharging port of the ore-fired furnace, the iron-discharging platform and the bracket are arranged on a walking flat car, the bracket is arranged below the iron-discharging platform, an iron-discharging trough is arranged on the iron-discharging platform, the iron-discharging trough is arranged downwardly inclined along the iron-discharging direction, the iron-discharging trough is closed at one end below the iron-discharging port of the ore-fired furnace, the other end of the iron-discharging trough penetrates the iron-discharging platform to form the platform iron-discharging port, a slag groove is arranged at one end of the iron-discharging trough close to the platform iron-discharging port, a metal recovery pit is arranged in the bracket, the upper surface of the metal recovery pit is connected with the iron-discharging trough, a guide groove is arranged at the bottom of the metal recovery pit, and the guide groove passes through the bracket. The utility model has a simple structure, is easy to manufacture, is easy to inspect and maintain, and has low investment.

Description

A movable tapping equipment matched with ferroalloy submerged arc furnace

technical field

The utility model belongs to the technical field of metallurgy, and in particular relates to a movable tapping device matched with a ferroalloy submerged arc furnace.

Background technique

Large-scale ferroalloy submerged arc furnaces generally have tapping platforms similar to blast furnaces, which can successfully separate slag and iron. However, in the prior art, small and medium-sized submerged arc furnaces or old submerged arc furnaces generally do not have tapping platforms, but adopt hierarchical iron, The slag ladle realizes the separation of slag and iron by means of overflow. Although the above separation methods can also separate most of the slag, the amount of slag in the iron ladle is still considerable, and the slag needs to be removed, resulting in iron loss and temperature loss. The yield is not high, and the scum on the molten iron in the later stage of pouring will also be wrapped with the iron flow, which will affect the product quality; at the same time, due to the impact and stirring of the iron flow during the tapping process, the iron, The slag is stirred and wrapped with each other, so that there is a problem of slag inclusion in the poured alloy; in addition, the hierarchical iron and slag-laden tapping mode cannot bring the charge in the submerged arc furnace, and the lead and tin metals reduced by carbon heat are recovered and mixed into Alloys cause product quality problems, and the potential value of lead and tin has not been brought into play. In this case, it is necessary to design a new type of movable tapping device that is matched with the small submerged arc furnace and the old submerged arc furnace. The separation of slag and iron is very good, reducing alloy slag, and can recycle high-priced metals such as lead and tin and sell them as by-products.

Utility model content

The purpose of the utility model is to provide a movable tapping equipment matched with ferroalloy submerged arc furnace to solve the problems of separation of ferroalloy slag and iron and recovery of harmful metals.

In order to solve the above problems, the technical solution of the utility model is:

A movable tapping equipment matched with a ferroalloy submerged arc furnace, including a tapping platform and a bracket arranged under the taphole of the submerged arc furnace, the tapping platform and the bracket are set on a walking flat car, and the bracket is set on the tapping hole Below the platform, there is a tapping chute on the tapping platform, which is set obliquely downward along the tapping direction. One end of the tapping trough is located under the taphole of the submerged arc furnace and is closed, and the other end of the tapping chute runs through the tapping platform. A platform taphole is formed, a slag ditch is provided at the end of the tapping trough near the platform taphole, a metal recovery pit is provided in the bracket, the upper surface of the metal recovery pit is connected with the tapping trough, and a diversion groove is provided at the bottom of the metal recovery pit The deflector passes through the bracket.

Further, a metal recycling bag is provided on the walking flat car, and the metal recycling bag is arranged directly under the diversion tank.

Further, the walking flat car is connected to the iron-clad car through a rigid trailer bar, and the iron-clad car is provided with an iron ladle, and the iron ladle is arranged directly under the platform tap hole.

Further, a plugging port is provided between the metal recovery pit and the diversion tank.

Further, the diversion groove is arranged obliquely downward along the flow direction of the recovered metal.

Further, the slag ditch is arranged obliquely downward along the slag discharge direction.

Further, raised cofferdams are provided around the tapping platform.

The beneficial effects of the utility model are as follows: the utility model realizes the separation of slag and iron and the recovery of lead and tin metal by moving the iron tapping platform and cooperating with the slag ditch and the metal recovery pit, so as to improve the quality and yield of ferroalloy. The movement or lifting between the tapholes can adapt to the operation mode of submerged arc furnaces to change the taphole tapping in stages; the diversion groove and slag ditch are arranged downwards along the direction of the fluid, and under the action of gravity, the fluid naturally flows to the outlet; the sealing The setting of the blocking port is convenient to control the collection timing of lead, tin and other metals; the utility model has simple structure, convenient manufacture, convenient maintenance and less investment, and each ferroalloy submerged arc furnace is equipped with two sets of the utility model, one for use and one for standby, no Affecting production can not only ensure good separation of ferroalloy slag and iron, but also recover harmful metals such as lead and tin produced in the smelting process, realize turning waste into treasure, and bring another product and incidental benefits to ferroalloy enterprises.

Description of drawings

Fig. 1 is a kind of structural schematic diagram of the movable tapping equipment supporting ferroalloy submerged arc furnace;

Fig. 2 is a front view of Fig. 1 .

The reference signs are as follows: 1, submerged arc furnace taphole; 2, tapping platform; 21, tapping trough; 22, platform tapping hole; 23, slag ditch; 3, support; 31, metal recovery pit; 32, Diversion groove; 33. Blocking port; 4. Walking flat car; 5. Metal recycling bag; 6. Rigid trailer bar; 7. Iron-clad car; 8. Iron-clad;

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

As shown in Figure 1-2, a movable tapping equipment matched with a ferroalloy submerged arc furnace includes a tapping platform 2 and a bracket 3 located below the taphole 1 of the submerged arc furnace, and a tapping platform 2 and a bracket 3 is set on the walking flat car 4, the bracket 3 is set under the tapping platform 2, and the tapping platform 2 is surrounded by a raised cofferdam 9, and the tapping platform 2 is provided with a tapping trough 21, and the tapping trough 21 It is arranged obliquely downward along the tapping direction, one end of the tapping trough 21 located below the taphole 1 of the submerged arc furnace is closed, the other end of the tapping trough 21 runs through the tapping platform 2 to form a platform tapping hole 22, and the tapping trough 21 is close to the platform One end of the taphole 22 is provided with a slag ditch 23, and the slag ditch 23 is arranged obliquely downward along the direction of slag discharge, and a metal recovery pit 31 is arranged inside the support 3, and the upper surface of the metal recovery pit 31 communicates with the tap trough 21, and the metal recovery pit 31 is provided with a diversion groove 32 at the bottom, and a plugging opening 33 is provided between the metal recovery pit 31 and the diversion groove 32. The diversion groove 32 passes through the support 3, and the diversion groove 32 is arranged inclined downward along the flow direction of the recovered metal. The flat car 4 is provided with a metal recycling bag 5, and the metal recycling bag 5 is located directly below the diversion groove 32, and the walking flat car 4 is connected to the iron-clad car 7 by a rigid trailer bar 6, and the iron-clad car 7 is provided with an iron bag 8, and the iron-clad car 7 is provided with an iron bag 8. Bag 8 is located directly below the taphole 22 of the platform.

During operation, move the walking flat car 4 to the working position, and the rigid trailer bar 6 drives the iron cladding car 7 to move to the working position together, and the molten iron flows into the tapping platform 2 from the tap hole 1 of the submerged arc furnace, and the cofferdam 9 prevents the molten iron from overflowing , the molten iron flows into the ladle 8 on the ladle car 7 along the tapping trough 21, and during this process, the slag floating on the upper layer enters the slag ditch 23 to be removed, and metals such as lead and tin with heavier specific gravity are deposited in the metal recovery pit 31 After accumulating to a certain degree, the plugging port 33 is opened, and metals such as lead and tin flow into the metal recovery bag 5 middle part along the diversion groove 32.

Claims (7)

1. A movable tapping equipment matched with a ferroalloy submerged arc furnace, comprising a tapping platform (2) and a bracket (3) located below the taphole (1) of the submerged arc furnace, characterized in that: The tapping platform (2) and the bracket (3) are arranged on the walking flat car (4), the bracket (3) is arranged under the tapping platform (2), and the tapping platform (2) is provided with a tapping platform (2). The iron trough (21), the iron tapping trough (21) is arranged obliquely downward along the tapping direction, the one end of the iron tapping trough (21) located under the taphole (1) of the submerged arc furnace is closed, the iron tapping The other end of the trough (21) runs through the tapping platform (2) to form a platform taphole (22), and the end of the tapping trough (21) close to the platform taphole (22) is provided with a slag ditch (23). There is a metal recovery pit (31) inside the bracket (3), the upper surface of the metal recovery pit (31) communicates with the tapping groove (21), and the bottom of the metal recovery pit (31) is provided with a diversion groove (32) , the guide groove (32) passes through the bracket (3). 2. The movable tapping equipment matched with ferroalloy submerged arc furnace as claimed in claim 1, characterized in that: the walking flat car (4) is provided with a metal recycling bag (5), and the metal The recovery bag (5) is located directly below the diversion tank (32). 3. A movable tapping equipment matched with ferroalloy submerged arc furnace as claimed in claim 1 or 2, characterized in that: the walking flat car (4) is connected to the iron-clad car ( 7), the iron ladle (7) is provided with an iron ladle (8), and the iron ladle (8) is arranged directly below the platform tap hole (22). 4. The movable tapping equipment matched with ferroalloy submerged arc furnace as claimed in claim 3, characterized in that: there is a plug between the metal recovery pit (31) and the diversion groove (32) Mouth (33). 5. The movable tapping equipment matched with the ferroalloy submerged arc furnace as claimed in claim 4, characterized in that: the diversion groove (32) is arranged obliquely downward along the flow direction of the recovered metal. 6. The movable iron tapping equipment matched with ferroalloy submerged arc furnace according to claim 5, characterized in that: the slag ditch (23) is arranged obliquely downward along the slag discharging direction. 7. A movable tapping equipment matched with a ferroalloy submerged arc furnace as claimed in claim 6, characterized in that: said tapping platform (2) is surrounded by raised cofferdams (9).