Device for controlling TH value of sintering material flow entering furnace

Abstract

The utility model relates to the technical field of blast furnace ironmaking equipment, in particular to a device for controlling the TH value of a sintering material flow entering a furnace. And the sintering material flow in the furnace is controlled, and less sintering powder enters the furnace. A wear-resisting steel plate is transversely welded between a gap of a stock bin gate and a sieve plate, a plurality of steel bar ring hooks are welded at intervals in the length direction of the wear-resisting steel plate, and each steel bar ring hook is connected with a detachable wear-resisting iron chain. The device effectively blocks, regulates and controls the descending speed of the sintering material, can fully screen the furnace charge, reduces the sintering material powder entering the furnace, improves the air permeability index of the furnace condition, increases the smooth degree of the furnace condition of the blast furnace, and completely eradicates the potential safety hazard. The structure is simple, practical, safe, convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace ironmaking equipment, namely a device for controlling the TH value of the sintering material flow entering the furnace, and controls the sintering material flow entering the furnace to reduce the amount of sintering powder entering the furnace. Background Art

[0002] In the prior art, sintering material is one of the raw materials for blast furnace ironmaking. The particle size is uneven. Before entering the furnace, the sintering material must be screened through a sintering screen, and the particle size of ≤5mm is required to be no more than 5%. The TH value controls the size of the material flow of the silo, which is the material flow rate passing through the gate per hour. Before improvement, it was controlled by moving the gate and changing the gate gap, which was labor-intensive, poor in control accuracy, and posed a safety hazard. Utility Model Content

[0003] The purpose of the utility model is to provide a device for controlling the TH value of the sintering material flow entering the furnace to address the above shortcomings. It can effectively block and regulate the descending speed of the sintering material, enable the furnace material to be fully screened, reduce the sintering material powder entering the furnace, and improve the furnace permeability index.

[0004] The technical solution of the utility model is: a device for controlling the TH value of the sintering material flow entering the furnace, characterized in that a wear-resistant steel plate is horizontally welded between the gap of the silo gate and the screen plate, and a plurality of steel bar hooks are welded at intervals along the length direction of the wear-resistant steel plate, and each steel bar hook is connected to a detachable wear-resistant iron chain.

[0005] The wear-resistant steel plate is 700 mm long, 200 mm wide and 5 cm thick. Five steel bar rings with a diameter of 10 mm are welded on the wear-resistant steel plate at equal distances.

[0006] The advantages of the utility model are: 1. The device effectively blocks and regulates the descending speed of the sintering material, can fully screen the furnace charge, reduce the sintering material powder entering the furnace, improve the furnace permeability index, increase the smoothness of the blast furnace, and eliminate safety hazards. 2. The structure is simple, practical, safe, convenient and fast.

[0007] The embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a simplified structural diagram of the utility model. DETAILED DESCRIPTION

[0009] See also Figure 1 The names of the parts are as follows: silo 1, gate wrench 2, gate 3, silo gate gap 4, wear-resistant steel plate 5, sieve plate 6, sintered material 7, steel bar ring hook 8, wear-resistant iron chain 9.

[0010] See also Figure 1The device for controlling the TH value of the sintering material flow entering the furnace is to weld a wear-resistant steel plate 5 horizontally between the gap 4 of the silo gate and the screen plate 6, and weld five steel bar hooks 8 at intervals and equal distances along the length direction of the wear-resistant steel plate 5. The steel bar hook 8 is a steel bar ring with a diameter of 10mm. Each steel bar hook 8 is connected to a detachable wear-resistant iron chain 9 (including rubbing). The wear-resistant steel plate 5 is 700mm long, 200mm wide, and 5cm thick. In the past, when the sintering material was lowered, the valve wrench 2 was often moved to adjust the gate, which was laborious and the adjustment was not accurate. After installing this device, the gate 3 does not move. Using this device, it plays a blocking role, the amount of sintering material passing through per unit time is reduced, and the residence time of the sintering material entering the sintering screen is extended, so that the sintering ore screen can be fully screened when it is working. During the discharge process of the sintering material in the silo 1, the gate wrench 2 is used to raise the gate plate 3 to maintain a fixed height gate gap 4. During the lowering process of the sintering material 7, the sintering material flow rate is blocked by this device and enters the furnace through the sieve plate 6. When the quality of the sintering material changes, manual adjustment of the valve wrench 2 is avoided, the particle size of the sintering material entering the furnace is adjusted, and safety hazards are eliminated.

[0011] The above description is only a specific implementation of the present utility model, and various examples do not constitute a limitation on the essential content of the present utility model.

Claims

1. A device for controlling the TH value of the sintering material flow entering the furnace, characterized in that A wear-resistant steel plate (5) is welded transversely between the silo gate gap (4) and the screen plate (6), and a plurality of steel bar hooks (8) are welded at intervals along the length direction of the wear-resistant steel plate (5), and each steel bar hook (8) is connected to a detachable wear-resistant iron chain (9).

2. The device for controlling the TH value of the sintering material flow entering the furnace according to claim 1, characterized in that The wear-resistant steel plate (5) is 700 mm long, 200 mm wide and 5 cm thick. Five steel bar rings with a diameter of 10 mm are welded on the wear-resistant steel plate (5) at equal distances.

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