CN217377940U

CN217377940U - Rotary electric furnace sand filling device

Info

Publication number: CN217377940U
Application number: CN202220683745.2U
Authority: CN
Inventors: 姚娟; 宋晓燕; 肖志鹏
Original assignee: Wisdri Engineering and Research Incorporation Ltd
Current assignee: Wisdri Engineering and Research Incorporation Ltd
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-09-06
Anticipated expiration: 2032-03-25

Abstract

The utility model discloses a rotary electric furnace sand filling device, which comprises a fixed base, a sand filling hopper and a locking component, wherein the outer side of the sand filling hopper is fixedly connected with a rotating arm which is sleeved on the fixed base and can horizontally rotate around the fixed base; rotating the sand filling hopper until the locking assembly is matched with the second hole position, and enabling the sand filling hopper to leave the upper part of the steel tapping hole, wherein the second state is achieved; the utility model has simple structure and convenient use, and can ensure that the equipment avoids the high-temperature area above the tapping hole, thereby protecting the equipment and prolonging the service life of the equipment.

Description

Rotary electric furnace sand filling device

Technical Field

The utility model belongs to the technical field of electric stove steelmaking technique and specifically relates to a rotation type electric stove sand filling device.

Background

In modern electric furnace steelworks, because an electric furnace-refining-continuous casting three-in-one short-flow production line is adopted, an electric arc furnace generally adopts an eccentric bottom tapping technology (EBT for short) to realize slag-free tapping. As with the ladle nozzle, the EBT steel-tapping hole also needs to be filled with refractory materials in the smelting process, and the steel-tapping hole supporting plate is opened when tapping, so that molten steel naturally flows out under the action of the tilting ferrostatic pressure of the electric furnace. The electric furnace sand filling device is equipment for filling sand into a steel tapping hole of an electric furnace. The existing sand filling device for the steel tapping hole of the electric furnace is fixed, for example, the automatic sand filling device for the electric furnace disclosed in patent No. 200820048777.5, the sand filling device is always positioned above the steel tapping hole no matter whether the sand filling device works, the temperature is high, the equipment is baked at high temperature for a long time, and the equipment is very easy to damage.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a rotary electric furnace sand filling device, which has simple structure and convenient use and can ensure that the equipment can avoid the high temperature area above the tapping hole, thereby protecting the equipment.

In order to achieve the above purpose, the technical scheme of the utility model is that: a rotary electric furnace sand filling device comprises a fixed base, a sand filling hopper and a locking assembly, wherein a rotating arm is fixedly connected to the outer side of the sand filling hopper, the rotating arm is sleeved on the fixed base and can horizontally rotate around the fixed base, a locking plate is fixedly connected to the fixed base, a first hole site and a second hole site are arranged on the locking plate along the same circumference, the locking assembly is mounted on the rotating arm, the locking assembly is in a first state when being matched with the first hole site, and the sand filling hopper is positioned right above a steel tapping hole; and rotating the sand filling hopper until the locking assembly is matched with the second hole position, and leaving the sand filling hopper above the steel tapping hole, wherein the sand filling hopper is in a second state.

The improved structure is characterized in that a shaft part is arranged at the upper end of the fixed base, a rotating shaft mounting hole is formed in the tail end of the rotating arm, and the rotating shaft mounting hole is rotatably connected with the shaft part.

And furthermore, a sliding shaft sleeve is assembled between the shaft part and the rotating shaft mounting hole, and a shaft end baffle is locked above the rotating shaft mounting hole.

The improved structure is characterized in that a locking mounting hole is formed in the rotating arm, the locking assembly comprises a shell, a locking rod, a spring, a plug, a ball head handle and a nut, the shell, the locking rod, the spring, the plug, the ball head handle and the nut are mounted in the locking mounting hole, the locking rod is located in the shell, the lower end of the locking rod extends out of the shell, the spring is sleeved outside the locking rod, the plug is matched with the upper end of the shell to fix the spring in the shell, a horizontal baffle is fixedly connected onto the locking rod, two ends of the spring are respectively abutted to the baffle and the plug, and the ball head handle is locked at the upper end of the locking rod through the nut and can drive the locking rod to move upwards.

And furthermore, the locking plate is positioned below the rotating arm, the distance between the locking plate and the rotating arm is D1, the maximum length of the lower end of the locking rod extending out of the shell is D2, and D1 is less than D2.

The sand filling device is further improved, the lower end of the sand filling hopper is provided with a sand outlet, a sand hopper door is matched with the sand outlet, the sand hopper door is connected with an operating handle located on the outer side of the sand outlet through a pin, the sand hopper door is kept horizontal when the operating handle is located at a vertical position to block the sand outlet, and the operating handle is rotated to drive the sand hopper door to overturn to open the sand outlet.

And furthermore, the operating handle and the sand filling hopper are provided with matched stop mechanisms, so that the rotation angle of the operating handle is limited.

And furthermore, a tension spring is connected between the sand filling hopper and the operating handle and used for controlling the opening of the sand hopper door to be in place.

Through the utility model provides a technical scheme has following beneficial effect:

this device will fill sand hopper and unable adjustment base and rotate to be connected, makes it to do the level and rotate round unable adjustment base, and when needs fill sand hopper and fill sand, fill sand hopper and turn to the steel-tapping hole top, when need not to fill sand, fill sand hopper and turn to the high temperature region of avoiding steel-tapping hole top to effective protection equipment is favorable to prolonging the life of equipment.

Drawings

FIG. 1 is a front view of an embodiment of the present invention;

fig. 2 is a top view of an embodiment of the present invention;

fig. 3 is a side view of an embodiment of the invention;

FIG. 4 is a schematic view of a fixing base according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a locking assembly in an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 2, the rotary electric furnace sand filling device comprises a fixed base 1, a sand filling hopper 2 and a locking assembly. As shown in fig. 4, a shaft portion 11 is provided at the upper end of the fixing base 1. Fill sand hopper 2 outside and link firmly a rocking arm 21, rocking arm 21 end is equipped with the pivot mounting hole, and the pivot mounting hole cup joints on axial region 11, and is equipped with slip axle sleeve 12 between axial region 11 and the pivot mounting hole, makes rocking arm 21 can rotate around fixed base 1 level, pivot mounting hole top lock attaches axle head baffle 13.

As shown in fig. 2, a sector-shaped locking plate 14 is fixedly connected to the fixed base 1, a first hole 141 and a second hole 142 are formed in the locking plate 14 along the same circumference, a locking assembly is mounted on the rotating arm 21, the locking assembly is in a first state when being matched with the first hole 141, and the sand filling hopper 2 is positioned right above the steel tapping hole; the sand-filled hopper 2 is rotated until the locking assembly is engaged with the second hole site 142, and the sand-filled hopper 2 leaves above the tap hole, which is in a second state.

The included angle between the center line of the second hole site 142 and the center line of the first hole site 141 may be 90 °, slightly smaller than 90 ° or larger than 90 °, so long as the sand-filling hopper 2 leaves the upper part of the steel-tapping hole when the locking component on the rotating arm 21 is matched with the second hole site 142.

In the embodiment shown in fig. 5, a locking mounting hole is formed in the rotating arm 21, the locking assembly includes a housing 31, a locking rod 32, a spring 33, a plug 34, a ball handle 35 and a nut 36, the locking rod 32 is installed in the locking mounting hole, the lower end of the locking rod 32 is located in the housing 31, the spring 33 is sleeved outside the locking rod 32, the plug 34 is matched with the upper end of the housing 31 to fix the spring 33 in the housing 31, a horizontal baffle 37 is fixedly connected to the locking rod 32, two ends of the spring 33 are respectively abutted against the baffle 37 and the plug 34, and the ball handle 35 is locked to the upper end of the locking rod 32 through the nut 36, so as to drive the locking rod 32 to move upward. When the sand filling hopper 2 is in the first state and sand filling is completed, the ball head handle 35 is lifted upwards to drive the locking rod 32 to move upwards, meanwhile, the spring 33 is compressed, the sand filling hopper 2 is rotated until the ball head handle 35 is put down after leaving the steel tapping hole, the locking rod 32 moves downwards under the elastic force of the spring 33 to be matched with the second hole position 142, and the sand filling hopper 2 is in the second state.

The locking plate 14 is positioned below the rotating arm 21, the distance between the locking plate 14 and the rotating arm 21 is D1, the maximum length of the lower end of the locking rod 32 extending out of the shell 31 is D2, and D1 is less than D2. This is provided in order for the lower end of the locking lever 32 to extend into the first hole portion 141/the second hole portion 142 to function to restrict the rotation of the rotation arm 21. Of course, the structure of the locking assembly is not limited thereto, and any structure capable of restricting the rotation of the swivel arm 21 may be used instead.

As shown in fig. 3, a sand outlet 22 is arranged at the lower end of the sand filling hopper 2, a sand hopper door 23 is matched at the sand outlet 22, the sand hopper door 23 is connected with an operating handle 24 positioned outside the sand outlet 22 through a pin, the sand hopper door 23 is kept horizontal to block the sand outlet 22 when the operating handle 24 is in a vertical position, and the sand hopper door 23 is driven to turn over to open the sand outlet 22 when the operating handle 24 is rotated.

The operating handle 24 and the sand filling hopper 2 are provided with matched stop mechanisms, so that the rotation angle of the operating handle 24 is limited. The method specifically comprises the following steps: the inner side of the operating handle 24 is provided with a stop block 241, the outer side of the sand filling hopper 2 is provided with a stop block 242, the stop block 242 is provided with two stop surfaces, the included angle between the two stop surfaces is 90 degrees, the stop block 241 is clamped into the stop block 242 and can rotate along with the operating handle 24 to abut against the two stop surfaces respectively.

With continued reference to fig. 1, a tension spring 25 is connected between the sand filling hopper 2 and the operating handle 24 for controlling the opening of the hopper door 23. When the sand hopper door 23 is opened in place, the tension spring 25 is in a stretching state.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a rotation type electric stove sand filling device which characterized in that: the sand filling device comprises a fixed base, a sand filling hopper and a locking assembly, wherein a rotating arm is fixedly connected to the outer side of the sand filling hopper, the rotating arm is sleeved on the fixed base and can horizontally rotate around the fixed base, a locking plate is fixedly connected to the fixed base, a first hole site and a second hole site are arranged on the locking plate along the same circumference, the locking assembly is mounted on the rotating arm, the locking assembly is in a first state when matched with the first hole site, and the sand filling hopper is positioned right above a steel tapping hole; and rotating the sand filling hopper until the locking assembly is matched with the second hole position, and leaving the sand filling hopper above the steel tapping hole, wherein the sand filling hopper is in a second state.

2. The rotary electric furnace sand-filling device according to claim 1, wherein: the unable adjustment base upper end is equipped with the axial region, and the rocking arm end is equipped with the pivot mounting hole, and the pivot mounting hole rotates with the axial region to be connected.

3. The rotary electric furnace sand-filling device according to claim 2, wherein: a sliding shaft sleeve is assembled between the shaft part and the rotating shaft mounting hole, and a shaft end baffle is locked above the rotating shaft mounting hole.

4. The rotary electric furnace sand-filling device according to claim 1, characterized in that: the locking assembly comprises a shell, a locking rod, a spring, a plug, a ball head handle and a nut, the shell, the locking rod, the spring, the plug, the ball head handle and the nut are installed in the locking mounting hole, the locking rod is located in the shell, the lower end of the locking rod extends out of the shell, the spring is sleeved outside the locking rod, the plug is matched with the upper end of the shell to fix the spring in the shell, a horizontal baffle is fixedly connected onto the locking rod, two ends of the spring are respectively abutted to the baffle and the plug, and the ball head handle is locked at the upper end of the locking rod through the nut and can drive the locking rod to move upwards.

5. The rotary electric furnace sand-filling device according to claim 4, wherein: the locking plate is positioned below the rotating arm, the distance between the locking plate and the rotating arm is D1, the maximum length of the lower end of the locking rod extending out of the shell is D2, and D1 is smaller than D2.

6. The rotary electric furnace sand-filling device according to claim 1, characterized in that: fill sand hopper lower extreme and be equipped with the sand outlet, sand outlet department's cooperation has sand hopper door, and sand hopper door passes through the pin junction with the operating handle who is located the sand outlet outside, makes sand hopper door keep the level when operating handle is in vertical position with sand outlet shutoff, thereby it opens sand outlet to drive sand hopper door upset when rotating operating handle.

7. The rotary electric furnace sand-filling device according to claim 6, wherein: and the operating handle and the sand filling hopper are provided with matched stop mechanisms so as to limit the rotation angle of the operating handle.

8. The rotary electric furnace sand-filling device according to claim 6, wherein: and a tension spring is connected between the sand filling hopper and the operating handle.