Automatic sand filling device for stuffing sand

Abstract

The utility model discloses an automatic sand filling device for stuffing sand, which belongs to the technical field of converter steelmaking, the automatic sand filling device comprises a sand filling pipe, a stuffing sand storage box, a winch and a steel ladle, the sand filling pipe comprises a sand silo and a drainage pipe arranged at the bottom end of the sand silo; the stuffing sand storage box is correspondingly arranged on one side of the sand silo, and a control valve is correspondingly arranged at a feed opening of the stuffing sand storage box; the winding winch is in transmission connection with the sand filling pipe through a traction steel rope and drives the sand filling pipe to do lifting action; the bottom of the steel ladle is provided with a steel ladle nozzle corresponding to the bottom of the drainage pipe. According to the automatic sand filling device disclosed by the utility model, an operation station can automatically realize sand filling operation on a converter platform, so that not only is the sand filling quality of stuffing sand improved, but also the operation environment is improved, and the labor intensity is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of converter steelmaking, in particular to an automatic sand filling device for draining sand. Background Art

[0002] In the iron and steel metallurgical process, smelted molten steel needs to be transferred to the continuous casting process through a ladle. Continuous casting technology requires that molten steel be supplied in a timely and stable manner through alternating ladles. It has been proposed to inject drainage sand into the ladle nozzle so that the molten steel can automatically flow out of the ladle after the ladle slide at the bottom of the ladle is opened, thereby achieving a timely and stable supply of molten steel from different ladles. The specific drainage principle is that in the initial stage of molten steel being injected into the ladle, the drainage sand on the upper surface of the ladle nozzle contacts the molten steel and rapidly sinters, thereby hindering the penetration of the molten steel. The sintered layer, supported by the drainage sand at the bottom, can withstand the static pressure of the molten steel without being destroyed. At the same time, the sintering speed of the drainage sand slows down, and the sintered layer can maintain a certain thickness. After the ladle slide at the bottom is opened and casting begins, the unsintered drainage sand at the bottom falls due to its own weight, and the sintered layer loses support, causing the sintered layer to break under the gravity of the molten steel. After the drainage sand flows out, the molten steel automatically flows out of the ladle.

[0003] The existing sand filling operation method is to open the ladle to the sand filling position, manually control the electric hoist to slowly lower the sand filling tube, align the sand filling tube with the ladle water outlet and lower it into place, add the baked drainage sand into the ladle water outlet through the sand filling tube, add until the drainage sand forms a sand dune shape at the water outlet, and manually control the electric hoist to slowly lift the sand filling tube to complete the sand filling operation. Whether the ladle opens automatically is an important indicator affecting product quality. If the ladle does not open automatically, it is easy to cause secondary oxidation of molten steel and reduce the casting speed of continuous casting, which has a great impact on production and product quality. However, the process of transferring molten steel by ladle in steel metallurgy is complex. Complex working conditions will affect the quality of sand filling, and the quality of sand filling directly affects whether the molten steel can automatically flow out of the ladle. The sand filling method in the existing technology, the sand filling quality and the ladle self-opening rate under complex working conditions still cannot meet production needs, and the complex operating conditions have an adverse effect on the personal safety of operators. Utility Model Content

[0004] Technical problem to be solved: In response to the problems existing in the prior art, the utility model provides an automatic sand filling device for drainage sand. The operator can perform the sand filling operation by standing on the converter platform, which not only improves the filling quality of drainage sand, but also improves the operating environment and reduces labor intensity.

[0005] Technical solution: The utility model discloses an automatic sand filling device for draining sand, which includes:

[0006] A sand filling pipe, comprising a sand bin and a drainage pipe arranged at the bottom end of the sand bin;

[0007] A drainage sand storage box is provided on one side of the sand bin, and a control valve is provided on the discharge port of the drainage sand storage box;

[0008] A hoisting winch, which is connected to the sand filling pipe through a traction steel rope and drives the sand filling pipe to move up and down;

[0009] The ladle has a ladle water outlet at the bottom thereof corresponding to the bottom of the drainage pipe.

[0010] Preferably, the bottom of the drainage sand storage tank is arranged inclined, and the control valve is correspondingly arranged on one side of the inclined bottom of the drainage sand storage tank.

[0011] Preferably, the control valve is an electric control valve.

[0012] Preferably, a pulley block for guiding is provided at the top of the sand bin, and the traction steel rope is led out from the hoisting winch, passes through the pulley block and is fixedly connected to the top of the sand bin.

[0013] Preferably, the sand bin is a conical structure, a hanging frame is provided at the open top thereof, and a hook is provided at the top of the hanging frame.

[0014] Preferably, the ladle comprises a tank body and a refractory lining built on the inner wall of the tank body; a reinforcement sleeve is fixedly connected to the outer wall of the tank body in the circumferential direction, and ear shafts are symmetrically provided on both sides of the reinforcement sleeve.

[0015] Preferably, a bag turning mechanism is provided at the bottom of the tank body, and the bag turning mechanism includes a support connecting rod fixedly connected to the bottom of the tank body, and one end of the support connecting rod extends to one side of the tank body and is hinged to one end of the locking connecting rod;

[0016] A locking shaft is provided at the middle of the inner side of the locking link, and a locking buckle is provided at one side of the bottom of the tank body corresponding to the locking shaft. Driving the locking link to flip along the hinged part of the supporting link can drive the locking shaft to lock or unhook with the locking buckle.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] The automatic sand filling device of the utility model can automatically perform sand filling operation when the operator stands on the converter platform, which not only improves the filling quality of drainage sand, but also improves the operating environment and reduces labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the main structural view of the automatic sand filling device of the utility model;

[0020] Figure 2 for Figure 1 Half-planing drawing of the middle ladle structure;

[0021] Figure 3 for Figure 2 Right view of the middle ladle structure;

[0022] Figure 4 for Figure 1 Schematic diagram of the medium sand filling pipe structure.

[0023] Figure numerals: 100, automatic sand filling device; 1, converter platform; 2, sand filling platform; 3, hoisting winch; 4, traction rope; 5, pulley block; 6, sand filling pipe; 61, sand bin; 62, drainage pipe; 63, suspension bracket; 64, hook; 7, drainage sand storage box; 8, control valve; 9, ladle; 91, tank body; 92, refractory lining; 93, ear shaft; 94, reinforcement sleeve; 95, support base; 96, ladle turning mechanism; 961, support connecting rod; 962, locking connecting rod; 963, lock buckle; 964, lock shaft; 10, ladle water outlet. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following Figures 1 to 4 The technical solutions of the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0025] like Figure 1 and Figure 4 As shown, the present invention discloses an automatic sand filling device for drainage sand. The automatic sand filling device 100 includes a sand filling pipe 6, a drainage sand storage tank 7, a hoisting winch 3, and a ladle 9. The bottom of the ladle 9 is provided with a ladle nozzle 10 corresponding to the bottom of the drainage pipe 62. The sand filling pipe 6 includes a sand bin 61 and a drainage pipe 62 disposed at the bottom end of the sand bin 61. The sand bin 61 has a conical structure, and a hanger 63 is provided at its open top. The top end of the hanger 63 is provided with a hook 64. The drainage sand stored in the sand bin 61 can be discharged to the ladle nozzle 10 of the ladle 9 through the drainage pipe 62.

[0026] The drainage sand storage box 7 is arranged on one side of the sand bin 61 and is arranged on the converter platform 1. The bottom of the drainage sand storage box 7 is inclined. The control valve 8 is arranged on one side of the inclined bottom of the drainage sand storage box 7, and the discharge port of the drainage sand storage box 7 is provided with a control valve 8. The control valve 8 is an electric control valve, which can control the drainage sand storage box 7 to automatically discharge the drainage sand.

[0027] The hoisting winch 3 is correspondingly arranged on the sand filling platform 2, and the hoisting winch 3 is connected to the sand filling pipe 6 through the traction steel rope 4, and drives the sand filling pipe 6 to perform lifting and lowering movements. Specifically, a pulley block 5 is provided at the top of the sand bin 61 for guiding. The pulley block 5 includes two pulleys arranged horizontally above the converter platform 1. The traction steel rope 4 is led out from the hoisting winch 3, passes through the pulley block 5 and is fixedly connected to the top of the sand bin 61. When the ladle 9 is in place, the operator operates the hoisting winch 3 through the traction steel rope 4 through the hand operator to lower the sand filling pipe 6 into the ladle 9 and align it with the ladle water inlet 10. The control valve 8 of the drainage sand storage box 7 is opened, and the drainage sand automatically flows from the drainage sand storage box 7 into the sand bin 61 of the sand filling pipe 6 and enters the ladle water inlet 10 through the drainage pipe 62. After the sand filling is completed, the control valve 8 is closed, and then the sand filling pipe 6 is lifted up by the hoisting winch 3, thereby achieving the purpose of automatic sand filling.

[0028] In a preferred embodiment, if Figure 1 As shown, the ladle 9 includes a tank body 91 and a refractory lining 92 built on the inner wall of the tank body 91; a reinforcement sleeve 94 is fixedly connected to the outer wall of the tank body 91 in the circumferential direction, and ear shafts 93 are symmetrically provided on both sides of the reinforcement sleeve 94.

[0029] In a preferred embodiment, if Figure 2 As shown, a support base 95 is provided at the bottom of the tank body 91, and a ladle turning mechanism 96 is provided at the bottom of the tank body 91. The ladle turning mechanism 96 includes a support link 961 fixedly connected to the bottom of the tank body 91, and one end of the support link 961 extends to one side of the tank body 91 and is hinged to one end of the locking link 962; a locking shaft 964 is provided in the middle part of the inner side of the locking link 962, and a locking buckle 963 is provided on one side of the bottom of the tank body 91 corresponding to the locking shaft 964. Driving the locking link 962 to flip along the hinged part of the support link 961 can drive the locking shaft 964 to lock or unhook with the locking buckle 963, thereby meeting the tilting slag discharge requirements of the ladle 9.

[0030] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An automatic sand filling device for drainage sand, characterized in that: The automatic sand filling device (100) comprises: A sand filling pipe (6), the sand filling pipe (6) comprising a sand bin (61) and a drainage pipe (62) arranged at the bottom end of the sand bin (61); A drainage sand storage box (7), the drainage sand storage box (7) is correspondingly arranged on one side of the sand bin (61), and a control valve (8) is correspondingly arranged at a discharge port of the drainage sand storage box (7); A hoisting winch (3), wherein the hoisting winch (3) is connected to the sand filling pipe (6) via a traction steel rope (4) and drives the sand filling pipe (6) to perform a lifting action; A ladle (9) is provided at the bottom of the ladle (9) with a ladle water outlet (10) corresponding to the bottom of the drainage pipe (62).

2. The automatic sand filling device for drainage sand according to claim 1, characterized in that: The bottom of the drainage sand storage box (7) is arranged in an inclined manner, and the control valve (8) is correspondingly arranged on one side of the inclined bottom of the drainage sand storage box (7).

3. The automatic sand filling device for draining sand according to claim 2, characterized in that: The control valve (8) is an electric control valve.

4. The automatic sand filling device for draining sand according to claim 1, characterized in that: A pulley block (5) having a guiding function is provided at the top of the sand bin (61), and the traction steel rope (4) is led out from the hoisting winch (3) and passes through the pulley block (5) and is fixedly connected to the top of the sand bin (61).

5. The automatic sand filling device for draining sand according to claim 1, characterized in that: The sand bin (61) is a conical structure, with a hanging frame (63) provided at the open top thereof, and a hook (64) provided at the top of the hanging frame (63).

6. The automatic sand filling device for draining sand according to any one of claims 1 to 5, characterized in that: The ladle (9) comprises a tank body (91) and a refractory lining (92) built on the inner wall of the tank body (91); a reinforcement sleeve (94) is fixedly connected to the outer wall of the tank body (91) in the circumferential direction, and ear shafts (93) are symmetrically provided on both sides of the reinforcement sleeve (94).

7. The automatic sand filling device for draining sand according to claim 6, characterized in that: The bottom of the tank body (91) is provided with a bag turning mechanism (96), and the bag turning mechanism (96) includes a support connecting rod (961) fixedly connected to the bottom of the tank body (91), and one end of the support connecting rod (961) extends to one side of the tank body (91) and is hinged to one end of the locking connecting rod (962); A locking shaft (964) is provided at the middle portion of the inner side of the locking link (962), and a locking buckle (963) is provided at one side of the bottom of the tank body (91) corresponding to the locking shaft (964). The locking link (962) is driven to flip along the hinge portion of the supporting link (961) to drive the locking shaft (964) to lock or unhook with the locking buckle (963).

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