CN216053911U

CN216053911U - Converging device for low-pressure compensation of iron alloy submerged arc furnace

Info

Publication number: CN216053911U
Application number: CN202122431616.2U
Authority: CN
Inventors: 任泽龙; 董洪维; 王骧威; 孙本富
Original assignee: Tonghua Jianxin Technology Co ltd
Current assignee: Tonghua Jianxin Technology Co ltd
Priority date: 2021-10-10
Filing date: 2021-10-10
Publication date: 2022-03-15
Anticipated expiration: 2031-10-10

Abstract

The utility model belongs to the technical field of smelting equipment transformers, and particularly relates to a confluence device for low-voltage compensation of an iron alloy submerged arc furnace. It includes cylinder manifold A, cylinder manifold B, cylinder manifold A and a plurality of copper pipe of centre gripping side by side in the middle of the frame, and the frame both ends are through a plurality of connection lead screw fixed connection, and four planar angles of its characterized in that frame are connected with the channel-section steel stationary leg perpendicular and syntropy with the frame plane, have L type collets and adopt bolt through connection between every channel-section steel stationary leg and the frame. Has the characteristics of reasonable structure and safe use.

Description

Converging device for low-pressure compensation of iron alloy submerged arc furnace

Technical Field

The utility model belongs to the technical field of smelting equipment transformers, and particularly relates to a confluence device for low-voltage compensation of an iron alloy submerged arc furnace.

Background

In the prior art, the function of the feed system is to form a low-voltage loop by the current and the voltage output by the secondary side of the transformer of the submerged arc furnace and a three-phase electrode through a secondary bus system, so as to provide electric energy required by smelting of the submerged arc furnace. In the design process of a traditional ferroalloy submerged arc furnace feed system, because the active power efficiency of an electric furnace transformer is not high and the power factor is only between 0.58 and 0.62, a low-voltage compensation cabinet is additionally arranged at a terminal for carrying out power compensation on the transformer, and finally the power compensation factor reaches 0.82 to 0.86. The low-voltage powerless local compensation device is generally adopted for realizing the low-voltage powerless local compensation, and meanwhile, in a feed system section, a copper confluence device is required for reducing the loss of a transformer and a transmission copper pipe, so that the power supply efficiency is improved, and the quality of a power grid is improved.

The original low-pressure compensation confluence device is structurally composed of a first connecting lifting lug. And connecting the screw rod, the nut and the washer. And thirdly, an insulating gasket. And fourthly, insulating tubes. Insulating board. Sixthly, the bus board A. And the bus bar B and the like. The disadvantages are that: 1. the insulating tube is too long, the damage rate is high in the construction process, equipment is not used frequently, the insulating tube is damaged, cracks, faults and the like, the insulating effect is greatly reduced, if the insulating effect is poor, the power connection and the arcing are caused, the equipment of a feed system is damaged, the personal safety of personnel in an operation area is even endangered, and the consequence is unreasonable. 2. The original low-pressure compensation confluence device and the low-pressure compensation junction pipe fixing device are two sets of independent devices, so that the safety distance between the installation space and the use process is limited in the construction process, the construction difficulty is increased, and the later maintenance and replacement investment is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects and provide the confluence device for the low-pressure compensation of the ferroalloy submerged arc furnace, which has a reasonable structure and is safe to use.

The technical solution of the utility model is as follows: the current converging device for low-voltage compensation of the ferroalloy submerged arc furnace comprises a bus bar A, a bus bar B, a bus bar A and a plurality of copper pipes which are clamped in the middle of a frame side by side, wherein two ends of the frame are fixedly connected through a plurality of connecting lead screws, four corners of the plane of the frame are connected with channel steel fixing legs which are perpendicular to and in the same direction as the plane of the frame, and an L-shaped insulating block is arranged between each channel steel fixing leg and the frame and is connected with the frame in a penetrating mode through bolts.

The device is arranged in a submerged arc furnace holding system, and plays a great role in improving the active power efficiency, the reason is that the current output by the transformer is rectified by the device firstly, and the water-cooled cable has higher electric loss rate when passing through the water-cooled cable in a secondary bus system. The effect of shunting firstly and then rectifying is realized, the active power efficiency of the transformer is improved, and the power factor is effectively improved naturally. By optimizing the mode, the power factor of the low-voltage compensation system is improved to 0.86 from 0.82, the utilization rate of electric energy is improved, the electric loss is reduced, the investment cost of electric resources is directly reduced, and more and higher values of the saved electric energy can be created.

The utility model has the advantages that: reasonable structure and safe use. By adopting the device, the original fixing device of the low-voltage compensation junction pipe which is independently installed is cancelled and is not used any more. Realize original function through this device, to the adjustment and the optimization upgrading of original structure, both saved installation space, reduced the degree of difficulty of insulating part later maintenance, change again, greatly reduced secondary capital input.

Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is a schematic plan view of the present invention.

FIG. 3 is an enlarged schematic view of the connecting portion of the insulating tube.

Detailed Description

Referring to fig. 1-3, the part names are as follows: frame 1, insulating tube 2, L type collets 3, connecting screw 4, channel-section steel fixed leg 5, copper pipe 6, bolt 7, insulating washer 8, cylinder manifold A, cylinder manifold B.

Referring to fig. 1-3, the confluence device for low-voltage compensation of the iron alloy submerged arc furnace comprises a red copper confluence plate a, a confluence plate B, a confluence plate a and a plurality of copper pipes 6 (the copper pipes are used for conveying current and finally converting electric energy into heat energy for baking electrode paste to form positive and negative electrodes for smelting in the furnace), wherein the red copper confluence plate a, the confluence plate B, the confluence plate a and the copper pipes are clamped in the middle of a frame 1 (formed by channel steel on two sides) side by side, and the two ends of the frame 1 are fixedly connected through seven connecting screw rods 4. Four planar angles of frame 1 are connected with the channel-section steel stationary leg 5 (the channel-section steel of a section of length, be with converging device more stable fix on hot stove in ore deposit holder urceolus wall, played the effect of fixed bolster) perpendicular and syntropy in frame 1 plane, have L type insulating block 3 and adopt bolt 7 through connection between every channel-section steel stationary leg 5 and the frame 1. The L-shaped insulating block 3 is made of a phlogopite material with the temperature resistance of more than or equal to 800 ℃, so that the frame 1 and the bus board are completely insulated.

Referring to fig. 3, the insulating tube 2 and the double-side insulating washer 8 are additionally arranged outside the connecting bolt 7, and the insulating effect of the confluence device is greatly improved due to the integral structure.

The device improves the active power efficiency of the low-voltage compensation system in the smelting process of the submerged arc furnace, namely, improves the power factor and saves energy; but also reduces the maintenance of the equipment in the smelting production process, reduces the secondary cost investment and greatly improves the production efficiency.

After the device is welded and connected with the outer cylinder of the holder of the submerged arc furnace, the collector device and the holding cylinder are insulated by the insulation piece, and the electricity is prevented from being led into the holding cylinder to damage holding system equipment.

The foregoing description is only exemplary of the utility model and is not intended to limit the spirit of the utility model.

Claims

1. Hot stove low pressure compensation of ferroalloy ore deposit is with converging device, including the cylinder manifold A of centre on the side by side centre gripping in the middle of frame (1), cylinder manifold B, cylinder manifold A and a plurality of copper pipe (6), frame (1) both ends are through a plurality of connection lead screw (4) fixed connection, four planar angles of its characterized in that frame (1) are connected with frame (1) plane perpendicular and syntropy channel-section steel fixed leg (5), have L type insulating block (3) and adopt bolt (7) through connection between every channel-section steel fixed leg (5) and frame (1).