Slag drawing-out device for magnesium smelting reduction tank

Abstract

The utility model relates to a slag drawing device for a magnesium smelting reduction tank, which comprises a moving frame, a slag discharging mechanism and a slag drawing mechanism, the slag discharging mechanism and the slag drawing mechanism are arranged on the moving frame, the slag discharging mechanism comprises a slag discharging box arranged at the front end of the moving frame, a slag discharging port is arranged at the bottom of the slag discharging box, and an air outlet is arranged at the top of the slag discharging box. The front side of the slag discharging box is provided with a front working opening matched with a tank opening of a reduction tank, and the rear side is provided with a rear working opening; the slag drawing mechanism comprises a guide rail and a moving seat which are arranged on the moving frame, a driving motor is arranged on the moving seat, an auger shaft capable of penetrating through the front working opening and the rear working opening is arranged at the output end of the moving seat, slag drawing blades are arranged on the auger shaft, an air channel is formed in the auger shaft, and a turning cover capable of blocking the air channel is arranged at the front end of the auger shaft. The rear end, close to the driving motor, of the auger shaft is provided with an air slip ring communicated with the air channel, the air slip ring is connected with an air pump through a ventilation hose, and the auger shaft on the front side of the air slip ring is provided with a sealing plate capable of being matched with the rear working opening. The device has the advantages of reducing the labor intensity of workers, cleaning slag and the like.

Description

Technical Field

[0001] The utility model relates to the field of slag removal of a magnesium smelting reduction tank, in particular to a slag removal device for a magnesium smelting reduction tank. Background Art

[0002] The main components of dolomite are magnesium carbonate and calcium carbonate. Most manufacturers use dolomite as raw material to refine magnesium and use ferrosilicon reduction method to extract magnesium. The whole reduction process needs to be carried out at high temperature. The crude magnesium is collected in the reduction tank by reducing pressure and vacuuming. The residue after the reaction of dolomite and ferrosilicon remains in the furnace. Traditional slag removal requires workers to use a shovel to pull out the waste slag little by little. When the reduction tank is just taken out, the temperature in the furnace is very high, and each manufacturer has about hundreds of reduction furnaces. If manual slag removal is required, not only the labor intensity is very high and the slag cleaning is not clean enough, but there are certain safety hazards. Utility Model Content

[0003] In order to make up for the deficiencies of the prior art, the utility model provides a slag removing device for a magnesium smelting reduction tank. The slag removing device can greatly reduce the labor intensity of workers and remove the slag more cleanly.

[0004] The technical solution adopted by the utility model to solve the above technical problems is:

[0005] A slag removal device for a magnesium smelting reduction tank comprises a movable frame and:

[0006] A slag discharge mechanism, the slag discharge mechanism comprises a slag discharge box arranged at the front end of the mobile frame, a slag discharge port is arranged at the bottom of the slag discharge box, a gas outlet is arranged at the top of the slag discharge box, a front working port that can cooperate with the tank port of the reduction tank is arranged at the front side of the slag discharge box, and a rear working port is arranged at the rear side of the slag discharge box;

[0007] A slag removal mechanism, the slag removal mechanism includes a guide rail arranged on a movable frame, a movable seat is arranged on the guide rail, a driving motor is arranged on the movable seat, an auger shaft capable of penetrating a front working port and a rear working port is arranged at an output end of the driving motor, a slag removal blade is arranged on the auger shaft, an airway is arranged inside the auger shaft, a flap capable of blocking the airway is arranged at the front end of the auger shaft, an air slip ring connected to the airway is arranged at the rear end of the auger shaft close to the driving motor, the air slip ring is connected to the air pump via a ventilation hose, and a sealing plate capable of cooperating with the rear working port is arranged on the auger shaft on the front side of the air slip ring.

[0008] Furthermore, a filter screen is provided at the air outlet of the slag discharge box.

[0009] Furthermore, a fixing ring is connected to the middle portion of the auger shaft, and a guide wheel is connected to the fixing ring via a connecting rod, so as to support the auger shaft via the guide wheel.

[0010] Furthermore, a protective cover is provided above the driving motor at the rear of the slag discharge box.

[0011] The utility model adopts the above technical solution, and has the advantages that: the slag removal device for the magnesium smelting reduction tank can first remove most of the residue from the reduction tank through the slag removal blades through the cooperation of the mobile frame, the slag removal mechanism and the slag removal mechanism, and then clean the remaining residue or slag ash by ventilating the reduction tank, and the cleaned residue and slag ash are discharged through the slag discharge port of the slag discharge box, which is conducive to reducing the degree of poplar ash. In addition, the combination of mechanical slag removal and air slag removal can complete the slag cleaning work relatively quickly.

[0012] In addition, since the auger shaft is relatively long, arranging structures such as a fixing ring and a guide wheel on it can increase its slag removal stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a partial cross-sectional structural schematic diagram of one embodiment of the utility model;

[0014] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of the auger shaft with partial structure.

[0015] In the figure, 1. movable frame, 2. slag discharge box, 3. slag discharge port, 4. air outlet, 5. reduction tank, 6. front working port, 7. rear working port, 8. movable seat, 9. driving motor, 10. auger shaft, 11. slag removal blade, 12. air duct, 13. flap, 14. air slip ring, 15. ventilation hose, 16. air pump, 17. sealing plate, 18. fixing ring, 19. connecting rod, 20. guide wheel, 21. protective cover. DETAILED DESCRIPTION

[0016] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0017] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0018] like Figure 1-2 As shown, in this embodiment, the slag removal device for a magnesium smelting reduction tank includes a mobile frame 1 and the following components arranged thereon:

[0019] A slag discharge mechanism, the slag discharge mechanism comprises a slag discharge box 2 arranged at the front end of the mobile frame, a slag discharge port 3 is arranged at the bottom of the slag discharge box 2, a gas outlet 4 is arranged at the top of the slag discharge box 2, a front working port 6 that can cooperate with the tank port of the reduction tank 5 is arranged at the front side of the slag discharge box 2, and a rear working port 7 is arranged at the rear side of the slag discharge box 2;

[0020] The slag removal mechanism includes a guide rail 7 arranged on a movable frame 1, a movable seat 8 is arranged on the guide rail 7, a driving motor 9 is arranged on the movable seat 8, an auger shaft 10 capable of penetrating the front working port 6 and the rear working port 7 is arranged at the output end of the driving motor 9, a slag removal blade 11 is arranged on the auger shaft 10, an airway 12 is arranged inside the auger shaft 10, a flap 13 capable of blocking the airway is arranged at the front end of the auger shaft 10, an air slip ring 14 connected to the airway is arranged at the rear end of the auger shaft 10 near the driving motor 9, the air slip ring 14 is connected to the air pump 16 through a ventilation hose 15, and a sealing plate 17 capable of cooperating with the rear working port 7 is arranged on the auger shaft 10 on the front side of the air slip ring 14.

[0021] Slag removal process: first, the device is moved to the front of the reduction tank opening by the mobile frame 1, so that the front working port 6 of the slag discharge box 2 is abutted and matched with the reduction tank opening, and then the auger shaft 10 is driven by the mobile seat 8 to penetrate the rear working port 6 and the front working port 7 and extend into the reduction tank 5, and at the same time, the auger shaft 10 is driven by the driving motor 9 to rotate, so as to gradually discharge the slag in the reduction tank 5, and the discharged slag is discharged through the slag discharge port 3 of the slag discharge box 2, which can reduce the dust level to a certain extent. After the slag in the reduction tank 5 is basically discharged, that is, after the sealing plate 17 moves to contact with the slag discharge box 2 , the movable seat 8 no longer moves forward, and the air pump 16 is used to ventilate the air passage 12 in the auger shaft 10. After a certain pressure is reached, the flap 13 is pushed open (the flap is tightly fitted with the auger shaft before ventilation). After the gas enters the reduction tank 5, the remaining small particles of residue and slag ash are blown toward the reduction tank mouth until they are discharged from the slag discharge port. When basically nothing is discharged, the slag removal work is completed. This device not only greatly saves the labor of workers, but also can clean the slag in the reduction tank more cleanly. During the slag cleaning process, workers do not need to get too close to the reduction tank, which is relatively safe.

[0022] In one of the specific embodiments, a filter screen is provided at the air outlet of the slag discharge box 2 to filter dust and reduce the degree of dust emission from the air outlet.

[0023] In one of the specific embodiments, a fixing ring 18 is connected to the middle of the auger shaft 10, and a guide wheel 20 is connected to the fixing ring 18 via a connecting rod 19 to support the auger shaft through the guide wheel. Since the auger shaft is suspended for a long time, it is not stable enough during operation, and the working stability of the auger shaft can be improved by means of structural settings such as a fixing ring and a guide wheel. Specifically, as the auger shaft rotates, the guide wheel is supported along the rotation of the reduction tank. It should be noted that there is a slight gap between the guide wheel and the reduction tank to facilitate the entry of the guide wheel, and under the gravity of the auger shaft suspension, the guide wheel below will contact the wall of the reduction tank, thereby playing a certain supporting role.

[0024] In one specific embodiment, before the sealing plate 17 is matched with the slag discharge box, although the slag removal work is mainly carried out at this time and there is not much dust, because the rear working port of the slag discharge box is not completely blocked, some dust may float out from the rear working port at this time, so a protective cover 21 is provided above the driving motor behind the slag discharge box to prevent dust from floating into the air to a certain extent. In addition, the provision of the protective cover is also conducive to the installation of the slag discharge box and the air pump.

[0025] The above-mentioned specific implementation manner cannot be used as a limitation on the protection scope of the present utility model. For those skilled in the art, any replacement, improvement or change made to the implementation manner of the present utility model falls within the protection scope of the present utility model.

[0026] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A slag removal device for a magnesium smelting reduction tank, characterized in that: It includes a mobile frame and the following mounted thereon: A slag discharge mechanism, the slag discharge mechanism comprises a slag discharge box arranged at the front end of the mobile frame, a slag discharge port is arranged at the bottom of the slag discharge box, a gas outlet is arranged at the top of the slag discharge box, a front working port that can cooperate with the tank port of the reduction tank is arranged at the front side of the slag discharge box, and a rear working port is arranged at the rear side of the slag discharge box; A slag removal mechanism, the slag removal mechanism includes a guide rail arranged on a movable frame, a movable seat is arranged on the guide rail, a driving motor is arranged on the movable seat, an auger shaft capable of penetrating a front working port and a rear working port is arranged at an output end of the driving motor, a slag removal blade is arranged on the auger shaft, an airway is arranged inside the auger shaft, a flap capable of blocking the airway is arranged at the front end of the auger shaft, an air slip ring connected to the airway is arranged at the rear end of the auger shaft close to the driving motor, the air slip ring is connected to the air pump via a ventilation hose, and a sealing plate capable of cooperating with the rear working port is arranged on the auger shaft on the front side of the air slip ring.

2. The slag removal device for magnesium smelting reduction tank according to claim 1, characterized in that: A filter screen is provided at the air outlet of the slag discharge box.

3. The slag removal device for magnesium smelting reduction tank according to claim 1, characterized in that: A fixing ring is connected to the middle of the auger shaft, and a guide wheel is connected to the fixing ring via a connecting rod, so as to support the auger shaft via the guide wheel.

4. The slag removal device for magnesium smelting reduction tank according to claim 1, characterized in that: A protective cover is also provided above the driving motor at the rear of the slag discharge box.

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