Crushing screw conveyor for griddle of metallurgical blast furnace

Abstract

The utility model discloses a crushing screw conveyor for a metallurgical blast furnace griddle, which relates to the technical field of metallurgical blast furnace griddles and comprises a U-shaped shell, a motor and a cycloidal pin gear speed reducer, an electric device base is fixed at the left end of the U-shaped shell, and hanging rings are fixed at the front end and the rear end of the electric device base. A motor is fixed to the upper surface of the electric device base, the right end of the motor is connected with a cycloidal pin gear speed reducer, the output end of the cycloidal pin gear speed reducer is connected with a transmission rod, a shaftless auger is fixed to the outer end of the transmission rod, a discharging hole is formed in the bottom end of the U-shaped shell, and a mounting batten is fixed to the top end of the U-shaped shell. According to the crushing spiral conveyor for the metallurgical blast furnace griddle, the outer end of the closed shell is of a sharp structure, the closed shell can be conveniently inserted into blocky materials, the spraying range of water can be expanded through the nozzles arranged at multiple angles, and the dust falling effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of metallurgical blast furnace, concretely to a broken spiral conveyor for metallurgical blast furnace. BACKGROUND

[0002] When the blast furnace is abnormally stopped due to temporary maintenance and other special reasons, the furnace is forced to stop without lowering the material level. After the furnace is stopped, to facilitate smooth start-up in the later period and to reach production as soon as possible during the resumption of production, all the furnace materials above the center line of the tuyere need to be removed. Due to the abnormal stoppage of the furnace, the composition of the complex minerals in the furnace is complex, forming blocks. According to investigations, most of the existing technologies rely on manpower to remove hot materials, which has the problems of a large number of required personnel, low work efficiency, and extremely high risk.

[0003] A slag removal supporting roller for a melting furnace is disclosed in Chinese Utility Model Patent No. CN208238581U. The slag removal supporting roller saves effort and time when removing slag, effectively prevents burns during slag cleaning, and improves work safety. However, the slag removal supporting roller requires manual operation and generates a lot of dust during slag removal, which is inconvenient and inefficient. Therefore, we propose a broken spiral conveyor for metallurgical blast furnace to solve the above-mentioned problems. SUMMARY

[0004] The utility model aims at providing a broken spiral conveyor for metallurgical blast furnace to solve the problems of low work efficiency, extremely high risk, and a lot of dust during slag removal.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a broken spiral conveyor for metallurgical blast furnace, comprising a U-shaped shell, a motor, and a cycloidal pin wheel reducer:

[0006] The left end of the U-shaped shell is fixed with an electric device base, and the front and rear ends of the electric device base are both fixed with lifting rings. The upper surface of the electric device base is fixed with a motor, and the right end of the motor is connected with a cycloidal pin wheel reducer, and the output end of the cycloidal pin wheel reducer is connected with a transmission rod. The outer end of the transmission rod is fixed with an axleless auger, and the end of the axleless auger away from the transmission rod is fixed with a drill bit.

[0007] The right side of the U-shaped shell is fixed with a closed shell. The bottom end of the U-shaped shell is provided with a discharge hole. The top end of the U-shaped shell is fixed with a mounting strip, and the upper surface of the mounting strip is fixed with a spray pipe. The bottom end of the spray pipe is fixed with a spray head.

[0008] Preferably, the outer end of the axleless auger protrudes from the outer end of the closed shell.

[0009] Preferably, the mounting strip is welded equidistantly on the top end of the U-shaped shell.

[0010] Preferably, the cycloidal speed reducer is fixed on the upper surface of the electric device base.

[0011] Preferably, the transmission rod passes through the left end of the U-shaped shell, and the transverse center line of the transmission rod coincides with the transverse center line of the closed shell.

[0012] Preferably, the spray head is installed in the middle, rear and front of the bottom end of the spray pipe.

[0013] Preferably, the spray pipe is installed in the middle of the top end of the U-shaped shell.

[0014] Compared with the prior art, the beneficial effects of the utility model are that: the metallurgical blast furnace is provided with the broken spiral conveyor, the outer end of the closed shell is in a sharp structure, the closed shell is conveniently inserted into the blocky material, the spray head arranged at multiple angles can expand the water spraying range, and the dust falling effect is improved.

[0015] 1. The outer end of the closed shell is in a sharp structure, the closed shell is conveniently inserted into the blocky material, so that the rotation of the drill bit can break the material, and then the shaftless auger can convey the material by rotating;

[0016] 2. The spray head is installed in the middle, rear and front of the bottom end of the spray pipe, the spray pipe is installed in the middle of the top end of the U-shaped shell, the spray head arranged at multiple angles can expand the water spraying range, and the dust falling effect is improved.

[0017] 3. The front and rear ends of the electric device base are fixed with lifting rings, the lifting rings are hung with the inverted chain during the working process, the forward and backward movement is conducted, and the rotation position of the drill bit is conveniently adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a first shaft side structure schematic view of the utility model;

[0019] Figure 2 It is a second shaft side structure schematic view of the utility model;

[0020] Figure 3 It is a shaft side cut structure schematic view of the utility model;

[0021] Figure 4 It is a third shaft side structure schematic view of the utility model;

[0022] Figure 5 It is a spray head and spray pipe structure schematic view of the utility model.

[0023] In the figure: 1, U-shaped shell; 2, electric device base; 3, lifting ring; 4, motor; 5, shaftless auger; 6, drill bit; 7, closed shell; 8, discharge hole; 9, mounting strip; 10, spray pipe; 11, spray head; 12, cycloidal pin wheel reducer; 13, transmission rod. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Please refer to Figures 1-5 , the utility model provides a kind of technical scheme: a kind of metallurgical blast furnace is used to break up spiral conveyor for shoveling, including U-shaped shell 1, electric device base 2, lifting ring 3, motor 4, shaftless auger 5, drill bit 6, closed shell 7, discharge hole 8, mounting strip 9, spray pipe 10, spray head 11, cycloidal pin wheel reducer 12 and transmission rod 13, U-shaped shell 1 left end is fixed with electric device base 2, and the front and rear ends of electric device base 2 are all fixed with lifting ring 3, the upper surface of electric device base 2 is fixed with motor 4, and the right end of motor 4 is connected with cycloidal pin wheel reducer 12, cycloidal pin wheel reducer 12 is fixed on the upper surface of electric device base 2, the output end of cycloidal pin wheel reducer 12 is connected with transmission rod 13, the outer end of transmission rod 13 is fixed with shaftless auger 5, and the end of shaftless auger 5 away from transmission rod 13 is fixed with drill bit 6, the outer end of shaftless auger 5 protrudes from the outer end of closed shell 7;

[0026] When shoveling, staff inserts closed shell 7 into furnace, motor 4 and cycloidal pin wheel reducer 12 drive transmission rod 13, shaftless auger 5 and drill bit 6 to rotate and break up, to stir up charge, and break up lumpy charge, and the rotation of shaftless auger 5 pushes charge to left, and charge is transported to outside of furnace through discharge hole 8 in closed shell 7 and U-shaped shell 1, to complete shoveling operation;

[0027] As Figure 2 Indicated, the end of closed shell 7 away from U-shaped shell 1 is provided with notch, so that the outer end of closed shell 7 is in sharp structure, to facilitate insertion of outer end of closed shell 7 into charge block, closed shell 7 can effectively avoid shutdown problem of shaftless screw conveying device due to compaction of collapsed charge in furnace, and closed shell 7 is in overall circular tube type structure, which is beneficial to machine entry and exit, and in working process, through hanging inverted chain by lifting ring 3, to advance and retreat, and to adjust the position of drill bit 6;

[0028] The top end of the U-shaped shell 1 is fixed with a mounting strip 9, and the upper surface of the mounting strip 9 is fixed with a spraying pipe 10, the bottom end of the spraying pipe 10 is fixed with a spray head 11, the mounting strip 9 is welded at the top end of the U-shaped shell 1 at equal intervals, and the spray head 11 is mounted at the middle, rear and front of the bottom end of the spraying pipe 10, and the spraying pipe 10 is mounted at the middle of the top end of the U-shaped shell 1.

[0029] During the conveying process, the external water conveying equipment conveys water to the spraying pipe 10, and then the water is sprayed out from the spray head 11, and since the spray head 11 is mounted at the middle, rear and front of the bottom end of the spraying pipe 10, the spraying range can be expanded, and dust can be efficiently removed.

[0030] The above completes a series of operations of the broken spiral conveyor for smelting blast furnace, and the contents not described in detail in the description belong to the prior art known to those skilled in the art.

[0031] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0032] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A broken spiral conveyor for smelting blast furnace, comprising a U-shaped shell (1), a motor (4) and a cycloidal pin wheel reducer (12), characterized in that: the left end of the U-shaped shell (1) is fixed with an electric device base (2), and the front and rear ends of the electric device base (2) are fixed with lifting lugs (3), the upper surface of the electric device base (2) is fixed with a motor (4), the right end of the motor (4) is connected with a cycloidal pin wheel reducer (12), and the output end of the cycloidal pin wheel reducer (12) is connected with a transmission rod (13), the outer end of the transmission rod (13) is fixed with a shaftless auger (5), and the end of the shaftless auger (5) away from the transmission rod (13) is fixed with a drill bit (6); the right side of the U-shaped shell (1) is fixed with a closed shell (7), the bottom end of the U-shaped shell (1) is provided with a discharge hole (8), the top end of the U-shaped shell (1) is fixed with a mounting strip plate (9), and the upper surface of the mounting strip plate (9) is fixed with a spray pipe (10), the bottom end of the spray pipe (10) is fixed with a spray head (11).

2. A crushing auger for use in a metallurgical blast furnace according to claim 1, characterized in that: The outer end of the shaftless auger (5) protrudes from the outer end of the closed shell (7).

3. A crushing auger for use in a metallurgical blast furnace according to claim 1, characterized in that: The mounting strip plate (9) is welded at equal intervals on the top end of the U-shaped shell (1).

4. A crushing auger for use in a metallurgical blast furnace according to claim 1, characterized in that: The cycloidal pin wheel reducer (12) is fixed on the upper surface of the electric device base (2).

5. A crushing auger for use in a metallurgical blast furnace according to claim 1, characterized in that: The transmission rod (13) passes through the left end of the U-shaped shell (1), and the transverse center line of the transmission rod (13) coincides with the transverse center line of the closed shell (7).

6. A crushing auger for use in a metallurgical blast furnace according to claim 1, characterized in that: The spray head (11) is installed at the middle, rear and front of the bottom end of the spray pipe (10).

7. A crushing auger for use in a metallurgical blast furnace according to claim 1, characterized in that: The spray pipe (10) is installed at the middle of the top end of the U-shaped shell (1).

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