CN210480236U

CN210480236U - Special loading hopper of AOD stove

Info

Publication number: CN210480236U
Application number: CN201921334712.1U
Authority: CN
Inventors: 陆海飞; 田伟光; 徐佳林; 杨光
Original assignee: Guangdong Guangqing Metal Calendering Co ltd; Guangdong High End Stainless Steel Research Institute Co Ltd; Guangdong Guangqing Metal Technology Co Ltd
Current assignee: Guangdong Guangqing Metal Calendering Co ltd; Guangdong High End Stainless Steel Research Institute Co Ltd; Guangdong Guangqing Metal Technology Co Ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-05-08
Anticipated expiration: 2029-08-16

Abstract

The utility model provides a special loading hopper of AOD stove belongs to ferrous metallurgy industry technical field, including hopper body, lifting device and hopper chassis, the hopper chassis set up in hopper body below, lifting device installs in hopper chassis rear to with this body coupling of hopper, the hopper body include the hopper and set up in the platform of weighing of bottom, install the wheel in hopper chassis below. The tail part of the hopper body can be lifted by the lifting device, so that the large batch of materials in the hopper can be added into the AOD furnace at one time; the weighing platform is used for weighing the materials, so that an operator of the AOD furnace can timely obtain the weight of the added materials, errors in the added materials are avoided, and the working efficiency is improved; through installing the wheel in hopper chassis below, the hopper body of drive hopper chassis and top moves to the AOD fire door along fixed track and feeds in raw material to retreat back to the original place in reinforced completion, have safety, high efficiency and practice thrift the characteristics of manpower.

Description

Special loading hopper of AOD stove

Technical Field

The utility model relates to a ferrous metallurgy industry technical field specifically indicates a special loading hopper of AOD stove.

Background

In the steel smelting process, the AOD furnace is often provided with an automatic feeding system, furnace materials are conveyed into a storage bin through a belt, and the adding amount of the materials is controlled by adjusting the opening degree of the storage bin. However, the feeding method is only suitable for adding materials with smaller particles such as lime, fluorite and the like, and for materials with larger volume and more addition, such as scrap steel pressing blocks, nickel plates and copper plates, which are required by smelting, the materials need to be hoisted to the hopper through a steel wire with a hook by a travelling crane, and the steel wire at the tail part of the hopper is lifted, so that the materials are added into the AOD furnace.

However, the risk coefficient of the operation method of overhead lifting and dumping is very high, and once the operation is careless or the lifting hook falls off, the hopper can be overturned, the hopper and the materials fall off, and safety or production accidents are caused. Moreover, when the AOD furnace is used for smelting, the charging amount is large, the batches are large, and the AOD furnace is not suitable for using tools which are complicated or are complicated to operate.

In addition, the proportion of the components is very important in the steel smelting process, and during charging, if an AOD operator cannot know the weight of the alloy in the hopper in time, or the AOD operator needs to communicate and confirm with a charging worker behind the furnace through an interphone during charging, time is delayed, and deviation occurs in the proportion adjustment of the components in the furnace and the quality of steel smelting is influenced due to the fact that the charging worker records wrongly or the weight put into the hopper does not reach the numerical value recorded by the charging worker.

Therefore, there is a need for further improvements to the charging hopper of AOD furnaces.

SUMMERY OF THE UTILITY MODEL

The utility model provides a special loading hopper of AOD stove can solve the reinforced steel wire handling that needs of above-mentioned traditional AOD stove, and the operation degree of difficulty is big, and is unsafe, can't in time learn the problem of adding the accurate weight of material at every turn in addition when reinforced.

In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:

the utility model provides a special loading hopper of AOD stove, includes hopper body, lifting device and hopper chassis, the hopper chassis set up in hopper body below, lifting device install in hopper chassis rear to with this body coupling of hopper, the hopper body include the hopper and set up in the platform of weighing of bottom. The lifting device can lift the tail of the hopper body, so that a large amount of materials can be added into the AOD furnace at one time, and the hopper does not need to be lifted and the tail of the hopper body is lifted by a steel wire for feeding; and the platform of weighing can weigh the weight of material in the ejection of compact fill for operating personnel can in time know the weight of material in the hopper.

Further measures taken are: the lifting device comprises a hydraulic cylinder and a lifting mechanism arranged in the hydraulic cylinder; the top of the lifting mechanism is connected with the rear bottom or the rear side of the hopper body.

Further measures taken are: the weighing platform is characterized by further comprising a controller for controlling the hydraulic cylinder, and the weighing numerical value of the weighing platform is connected with the controller through an interface, so that the weight data are transmitted to the controller.

Further measures taken are: the hopper is of a long nozzle type.

Further measures taken are: the size of a discharge hole in front of the hopper is smaller than that of an AOD furnace mouth so as to ensure that materials can be smoothly added into the furnace; the length of hopper body is greater than the length of hopper chassis, and the harm that the alloy material caused to the impact of hopper chassis when can effectively avoid reinforced.

Further measures taken are: wheels are arranged below the hopper chassis and can move along a fixed track paved on the ground.

Further measures taken are: the weighing platform comprises a display screen for displaying weighing numbers, and the display screen is arranged on one side or the rear of the weighing platform.

Further measures taken are: and both sides of the weighing platform are fixed with the hopper through bolts.

Through the technical scheme, compared with the prior art, the utility model, the beneficial effect who has is as follows:

1. the utility model discloses an at the back bottom installation pneumatic cylinder and the lifting mechanism of hopper body, pneumatic cylinder drive lifting mechanism rises and descends to realize lifting and the decline of hopper body afterbody, can once only add the material in big batch hopper in the AOD stove, still need utilize the steel wire to promote the hopper afterbody and realize empting the material when having avoided using the lifting hook to hoist the hopper, more safe high efficiency, easy operation.

2. The utility model discloses a set up the display that weighing platform and platform side are used for showing weight data bottom the hopper for AOD stove operator can in time learn the weight of adding the material, need not to confirm with reinforced person again, can also improve work efficiency when avoiding the addition volume to make mistakes.

3. The utility model discloses an install the wheel in hopper chassis below to the hopper body that drives hopper chassis and top removes the AOD fire door along fixed track and feeds in raw material, and has added the material and retreat back to the original department, waits for reinforced next time, need not crane handling loading hopper, the material resources of using manpower sparingly and further promoted work efficiency.

4. The utility model discloses a shape and the size of rational design hopper body have guaranteed that the material is added smoothly in the AOD stove and protect the hopper chassis and avoid the striking, simultaneously the utility model discloses the structure is retrencied, easy operation through the steering control ware alright let the loading hopper automatic, independent completion remove and reinforced task, intelligence more and use manpower sparingly.

Drawings

Fig. 1 is a front view of the present invention;

1. hopper, 2, weighing platform, 3, lifting mechanism, 4, pneumatic cylinder, 5, fixing bolt, 6, hopper chassis, 7, wheel.

Detailed Description

In order to clearly understand the technical solutions adopted by the present invention, the following description is made in conjunction with the accompanying drawings to illustrate the preferred embodiments of the present invention, and it should be understood that the embodiments described herein are only used for illustrating and explaining the present invention, and are not used for limiting the present invention.

Referring to the attached drawing 1, the special charging hopper for the AOD furnace comprises a hopper body, a hydraulic cylinder 4, a lifting mechanism 3, a weighing platform 2, wheels 7, a hopper chassis 6 and a controller for controlling the hydraulic cylinder, wherein the hopper body comprises a hopper 1 and the weighing platform 2 arranged at the bottom, and weighing data of the weighing platform 2 is connected with the controller through an interface; the lifting mechanism 3 is arranged in the hydraulic cylinder 4, when the lifting mechanism is in a non-working state, the lifting mechanism can be completely folded in the hydraulic cylinder, and the top of the lifting mechanism 3 is connected with the rear bottom or the rear side of the hopper body; hopper 1 is long mouth type, and the size of 1 the place ahead discharge gate of hopper is less than the size of AOD fire door, and the length of hopper body is greater than the length of hopper chassis 6, and wheel 7 is installed to 6 below on the hopper chassis, and weighing platform 2 is including being used for showing the display screen of weighing digit, and the display screen sets up in one side or the rear of

weighing platform

2, 2 both sides of weighing platform all fixed mutually with hopper 1 through bolt 5.

When the automatic feeding device works, a travelling crane adds materials into a hopper 1, a weighing platform 2 displays the weight of the materials in the hopper 1 through a display screen and transmits the weight value to a controller, an operator can record the weight of the materials in the hopper 1 in real time, after the materials to be added into an AOD furnace are filled in the hopper 1, the operator drives a wheel 7 below the hopper chassis 2 to drive a hopper chassis 6 and a hopper body to advance to the AOD furnace mouth along a fixed track by operating the controller, a furnace door is opened, the operator drives a lifting mechanism 3 to lift the tail part of the hopper body through an operating hydraulic cylinder 4, the materials in the hopper 1 fall into the AOD furnace along the discharge port of the hopper 1 under the action of gravity, after all the materials are added into the AOD furnace, the furnace door is closed, the lifting mechanism 3 slowly retracts into the hydraulic cylinder 4, the lifting mechanism 3 can be completely folded into the hydraulic cylinder 4, meanwhile, the hopper body slowly falls back to the hopper chassis 6 and is horizontally placed, the wheels 7 below the hopper chassis 6 drive the hopper chassis 6 and the hopper body to retreat to the initial position, a feeding process is completed, and 10 tons of materials can be added at the maximum single feeding amount.

Wherein hopper 1 is long mouth type, and the size of place ahead discharge gate is less than the size of AOD fire door, and the length of hopper body is greater than the length of hopper chassis 6, retrencies reasonable design through these for the material can be smooth add in the AOD stove and protected hopper chassis 6 and avoid the striking when the material adds, and the both sides of weighing platform 2 are all fixed mutually with the hopper body through bolt 5.

The above description is only for the purpose of illustration and not limitation, and other modifications or equivalent replacements made by the technical solution of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. The utility model provides a special loading hopper of AOD stove, includes the hopper body, its characterized in that: the hopper is characterized by further comprising a lifting device and a hopper chassis, wherein the hopper chassis is arranged below the hopper body, the lifting device is arranged behind the hopper chassis and connected with the hopper body, and the hopper body comprises a hopper and a weighing platform arranged at the bottom.

2. The special charging hopper for the AOD furnace according to claim 1, wherein: the lifting device comprises a hydraulic cylinder and a lifting mechanism arranged in the hydraulic cylinder; the top of the lifting mechanism is connected with the rear bottom or the rear side of the hopper body.

3. The charging hopper special for the AOD furnace according to claim 2, wherein: the weighing platform is characterized by further comprising a controller for controlling the hydraulic cylinder, and the weighing numerical value of the weighing platform is connected with the controller through an interface.

4. The special charging hopper for the AOD furnace according to claim 1, wherein: the hopper is of a long nozzle type.

5. The charging hopper special for the AOD furnace according to claim 4, wherein: the size of the discharge hole in front of the hopper is smaller than that of the AOD furnace mouth, and the length of the hopper body is larger than that of the hopper chassis.

6. The charging hopper special for the AOD furnace according to any one of claims 1 to 5, wherein: wheels are arranged below the hopper chassis.

7. The charging hopper special for the AOD furnace according to any one of claims 1 to 5, wherein: the weighing platform comprises a display screen for displaying weighing numbers, and the display screen is arranged on one side or the rear of the weighing platform.

8. The special charging hopper for the AOD furnace according to claim 1, wherein: and both sides of the weighing platform are fixed with the hopper through bolts.