CN215328183U

CN215328183U - Bottom discharge type slag pot

Info

Publication number: CN215328183U
Application number: CN202121645027.8U
Authority: CN
Inventors: 蒙小旗; 齐丽琴
Original assignee: Tianjin Tianlang Metallurgical Technology Co ltd
Current assignee: Tianjin Tianlang Metallurgical Technology Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2021-12-28
Anticipated expiration: 2031-07-20

Abstract

The application discloses bottom type of unloading sediment jar for slag is transported, this sediment jar including have the jar body that holds the chamber, the top of this jar body be provided with hold the communicating upper shed in chamber, the bottom of the jar body be provided with hold the communicating under shed in chamber and be used for optionally opening or closing the mechanism that opens and shuts of this under shed. According to the technical scheme, the generation amount of the raise dust in the steel slag transferring process can be reduced, and the industrial applicability of the slag pot in the steel slag transferring process is improved.

Description

Bottom discharge type slag pot

Technical Field

The application relates to the field of conveying, more specifically relates to a bottom discharge type slag ladle for steel slag transfer.

Background

As a byproduct in the steel-making process, the steel slag can be used as a metallurgical raw material or used in the fields of road engineering, building engineering and the like to realize secondary utilization of resources. The production amount of steel slag in China is rapidly increased along with the rapid development of the steel industry, so the problem of transferring the steel slag in iron and steel enterprises is more and more emphasized.

In a steel smelting factory, most of slag tanks for transporting steel slag are cast integrally at present, and the discharging mode is a mode of pouring outwards through a top opening after rotation. However, when the dumping type slag pot is used, the weight of the slag pot containing the steel slag is generally heavier, the moment required for dumping the steel slag is larger, and the dumping speed of the steel slag is difficult to accurately control. The steel slag falling speed is too fast or the falling distance is longer, so that larger dust can be generated, and the environmental protection requirement is difficult to achieve. And the slag pot of whole casting probably produces the slag pot and is stained with the sediment problem in using, is difficult to empty totally, leads to the reduction of slag pot volume utilization, and long-time the use still easily produces crackle and unable the restoration.

Therefore, how to provide a steel slag transferring scheme with better industrial applicability becomes a technical problem to be solved in the field.

SUMMERY OF THE UTILITY MODEL

In view of this, the application provides a bottom discharge type slag pot for steel slag transportation to realize making steel slag transportation process safer and more environmental protection, improve the industrial applicability of steel slag transportation.

According to the application, a bottom discharge type slag ladle for steel slag transfer is provided, the slag ladle comprises a ladle body with a containing cavity, the top of the ladle body is provided with an upper opening communicated with the containing cavity, and the bottom of the ladle body is provided with a lower opening communicated with the containing cavity and an opening and closing mechanism used for selectively opening or closing the lower opening.

Preferably, in a closed state of the opening and closing mechanism, the opening and closing mechanism closes the lower opening of the tank body; in the opening state of the opening and closing mechanism, the opening and closing mechanism opens the lower opening of the tank body so as to allow the steel slag in the accommodating cavity to be discharged out of the slag tank through the lower opening.

Preferably, the tank body is cylindrical, or the cross-sectional shape of the tank body is rectangular or other polygonal cylindrical shape.

Preferably, the horizontal cross-sectional area of the tank body at the upper opening is greater than or equal to the horizontal cross-sectional area of the tank body at the lower opening.

Preferably, the tank body comprises an outer shell and an inner liner detachably mounted inside the outer shell, and a heat insulating material is disposed between the outer shell and the inner liner.

Preferably, the opening and closing mechanism comprises a first bottom opening door and a second bottom opening door, and in the closing state of the opening and closing mechanism, the first bottom opening door and the second bottom opening door are close to each other to close the lower opening of the tank body; in the open state, the first and second bottom-opening doors are spaced apart from each other to allow steel slag in the receiving cavity to pass between the first and second bottom-opening doors.

Preferably, in the closed state, the first and second bottom-opening doors form an arc-shaped or wedge-shaped bottom shape in the receiving cavity.

Preferably, the first bottom opening door and the second bottom opening door each comprise an outer shell and an inner liner detachably mounted inside the outer shell, and a heat insulating material is disposed between the outer shell and the inner liner.

Preferably, the first bottom-opening door comprises a first door body and a first extension arm fixed on the first door body, and the first extension arm is deviated from the gravity center of the first door body and is arranged close to the second bottom-opening door; the second bottom opening door comprises a second door body and a second extension arm fixed on the second door body, and the second extension arm deviates from the gravity center of the second door body and is arranged close to the first bottom opening door; the first extension arm and the second extension arm are hinged on the same height of the outer peripheral surface of the tank body.

Preferably, the first door body comprises a first hoisting structure, and the first hoisting structure deviates from the gravity center of the first door body and is arranged far away from the second bottom-opening door; the second door body comprises a second hoisting structure, and the second hoisting structure deviates from the gravity center of the second door body and is arranged far away from the first bottom-opening door; the first hoisting structure and the second hoisting structure are used for being connected with a hoisting mechanism, so that the first door body and the second door body swing towards directions far away from each other under the condition that the hoisting mechanism is pulled upwards.

Preferably, a link mechanism is formed between the adjacent first extension arm and the second extension arm, and in the closed state of the opening and closing mechanism, the link mechanism is used for forming self-locking under the pressure action of the steel slag in the accommodating cavity so as to keep the closed state of the opening and closing mechanism; the linkage mechanism is configured to maintain the first and second extension arms in synchronous rotation when the opening and closing mechanism is switched between the closed state and the open state.

According to the technical scheme of this application, this a bottom unloading type slag ladle for slag is transported need not to overturn the slag ladle and topples over when releasing its slag that holds in the chamber, but through the mechanism that opens and shuts of opening a jar body under shed department, makes slag discharge from the under shed under the influence of gravity to reduce the distance that slag falls, through the range of adjusting the mechanism that opens and shuts, can also conveniently control the speed that slag discharged moreover. Therefore, the slag pot can realize the reduction of the generation amount of the dust in the slag pot discharging process through the lower opening slag discharging mode under the control of the opening and closing mechanism, so that the steel slag is discharged as completely as possible, the steel slag conveying process is safer and more environment-friendly, and the industrial applicability of steel slag transferring is improved.

Additional features and advantages of the present application will be described in detail in the detailed description which follows.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate an embodiment of the invention and, together with the description, serve to explain the invention. In the drawings:

FIG. 1 is a perspective view of a slag pot for steel slag transport according to a preferred embodiment of the present application;

FIG. 2 is a side view of the slag pot shown in FIG. 1;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 5 is an enlarged view of section C of FIG. 4;

fig. 6 is a schematic view of the open-close mechanism of the slag pot shown in fig. 3 in an open state.

Detailed Description

The directional terms "upper" and "lower" as referred to in this application are used in the orientation shown in the drawings. It should be understood that the above directional terms are described for clearly indicating the relative position relationship of the technical solutions of the present application, and the arrangement of the products carrying the technical solutions of the present application may not be limited to the directional relationships shown in the drawings of the present application, so the above directional terms do not limit the protection scope of the present application.

The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

During the transfer process of the steel slag generated in the steel making process, the crushed steel slag is carried by the empty slag tank carried by the slag receiving vehicle, and the crushed steel slag is carried to the slag pool to lift the slag tank and dump the steel slag into the slag pool. However, in the process of pouring the steel slag, the steel slag is far away from the bottom of the slag pool, and the pouring speed is difficult to control, so that dust is easy to generate, and environmental protection pressure and potential safety hazards are caused. For providing the better slag transportation scheme of industrial applicability, the application provides a bottom type slag ladle of unloading that the bottom can be opened to the realization need not to empty the slag ladle and makes the slag can follow the slag ladle bottom and discharge, and then just control the discharge distance and the discharge rate of slag to a certain extent, reduces the production volume of raise dust.

As shown in fig. 1 and 2, the slag pot provided by the present application includes a pot body 10 having a receiving chamber 13, an upper opening 11 communicating with the receiving chamber 13 is provided at a top of the pot body 10, a lower opening 12 communicating with the receiving chamber and an opening and closing mechanism 20 for selectively opening or closing the lower opening 12 are provided at a bottom of the pot body 10. Wherein: in the closed state of the opening and closing mechanism 20, the opening and closing mechanism 20 closes the lower opening 12 of the tank body 10, so that the slag tank can stably contain steel slag; in the open state of the opening and closing mechanism 20, the opening and closing mechanism 20 opens the lower opening 12 of the can body 10 to allow the steel slag in the accommodating chamber 13 to be discharged out of the slag can through the lower opening 12. Preferably, the opening range and the opening speed of the opening and closing mechanism 20 for opening the lower opening 12 of the can body 10 are controllable, so that the controllability of the steel slag discharging process can be improved. The driving force for controlling the opening or closing of the opening and closing mechanism 20 can be from an auxiliary lifting hook on the slag pot lifting mechanism, or a driving device arranged near the slag pool or the slag groove, or a driving and transmission mechanism arranged on the slag pot body.

According to the above scheme, when the slag pot is used, in the closed state of the opening and closing mechanism 20, the steel slag to be transported can enter the accommodating cavity 13 of the slag pot through the upper opening 11 of the slag pot, and the slag pot is transferred to the slag pool or the slag groove of the target position through a carrier such as a carrier vehicle. Then the height of the slag pot is adjusted by the hoisting mechanism, the bottom of the slag pot is aligned to the slag pool or the slag groove, the pot bottom opening and closing mechanism 20 is slowly opened, and the steel slag is stably discharged into the slag groove. Compare in the tradition mode of empting, the slag ladle of this application need not to provide great drive power and makes the slag ladle that holds the slag emptys, but only need provide the drive power that makes the mechanism that opens and shuts open and can accomplish relatively controllable slag through this drive power and discharge the operation, has simplified the slag and has transported the flow, has improved its industrial applicability.

In the above embodiment, the tank body 10 of the slag tank preferably has a horizontal cross-sectional area at the upper opening 11 equal to that at the lower opening 12, and may be, for example, a cylindrical shape as shown in fig. 1, or the tank body 10 may be provided in a cylindrical shape having a rectangular or other polygonal cross-sectional shape. Besides, the can body 10 may be provided in a shape other than a cylinder according to the working requirements, for example, in order to make the steel slag enter the containing cavity 13 more easily, the can body 10 is provided in a funnel shape having a horizontal cross-sectional area at the upper opening 11 larger than that at the lower opening 12.

The slag pot body 10 can be manufactured in a welding, fixing and forming mode after being spliced and installed through steel plates or other metal materials, and the slag pot body 10 can also be integrally cast in a casting mode. Preferably, as shown in fig. 4 and 5, the tank body 10 of the slag pot comprises an outer shell 14 and an inner liner 15 detachably mounted on the inner side of the outer shell 14, and the outer shell 14 and the inner liner 15 can be fixed by fastening structures such as screws or buckles so as to prevent dislocation after being stressed. When the lining 15 is seriously worn after long-term use, the slag pot can be continuously put into use by disassembling and replacing the lining 15, and the maintenance cost is saved. The outer shell 14 is preferably made of a material with high strength, such as a steel plate, which is rolled and welded, so that the can body 10 has high structural strength; the liner 15 is preferably made of a high temperature and wear resistant material to provide a long life in situations where direct contact with high temperature steel slag is often required, such as the liner 15 being made of 0Cr18Ni9 stainless steel. An insulating material, preferably a ceramic fiber material, is preferably also disposed between the outer shell 14 and the inner liner 15 to minimize the transfer of heat from the steel slag to the outer shell 14 and damage to the structure of the outer shell 14.

According to the slag pot of the above embodiment, the opening and closing mechanism 20 of the slag pot may be a valve mechanism disposed at the lower opening 12, or may be at least one door structure that can be driven to open. Preferably, as shown in fig. 1, 3, 4 and 6, the opening and closing mechanism 20 includes a first bottom-opening door 21 and a second bottom-opening door 21 ', and in the closed state of the opening and closing mechanism 20, the first bottom-opening door 21 and the second bottom-opening door 21' are close to each other to close the lower opening 12 of the can body 10; in the open state, the first and second bottom-opening doors 21 and 21 'are spaced apart from each other to allow the steel slag in the receiving chamber 13 to pass between the first and second bottom-opening doors 21 and 21'. The driving force for controlling the first bottom opening door 21 and the second bottom opening door 21' to close or separate from each other can be from an auxiliary hook on the slag pot hoisting mechanism, or a driving device arranged near the slag pool or the slag groove, or a driving and transmission mechanism arranged on the slag pot body.

Slag pot of sediment is arranged to traditional mode of empting often because the residue of bottom is difficult to empty totally, leads to adhering to and influences the volume of slag pot on the inner wall of slag pot, still can cause the damage of slag pot for a long time. As shown in fig. 4, in the bottom discharge type slag pot of the present application, preferably, in the closed state of the opening and closing mechanism 20, the first bottom opening door 21 and the second bottom opening door 21' form an arc-shaped or wedge-shaped bottom shape in the accommodating cavity 13, so that the steel slag is concentrated in the middle of the arc-shaped or wedge-shaped bottom, and thus when the steel slag is discharged, the steel slag can be discharged as cleanly as possible, the residue in the slag pot after being discharged is reduced, and the service life of the slag pot is further prolonged.

The first and second bottom-opening doors 21 and 21' in the above embodiment may be made of the same material as the can body 10 or may be made of a different material. The first and second bottom-opening doors 21 and 21 ' may be made of a cast member or may be assembled by splicing steel plates or other metal materials, and preferably, as shown in fig. 5, each of the first and second bottom-opening doors 21 and 21 ' preferably includes an outer shell 14 ' and an inner liner 15 ' detachably mounted on an inner side of the outer shell 14 ', and a heat insulating material is disposed between the outer shell 14 ' and the inner liner 15 '. Preferably, the outer shell 14 ', the inner liner 15 ' and the heat insulating material of the first and second bottom-opening doors 21 and 21 ' are the same as those of the outer shell 14, the inner liner 15 and the heat insulating material of the can body 10 described above.

The first bottom opening door 21 and the second bottom opening door 21' of the slag pot are slidably mounted on the pot body 10 or hinged to the pot body 10 so as to be capable of moving or swinging relative to the pot body 10 to close or open the lower opening 12. Preferably, as shown in fig. 3 and 6, the first bottom-opening door 21 includes a first door 22 and a first extension arm 23 fixed to the first door 22, and the second bottom-opening door 21 ' includes a second door 22 ' and a second extension arm 23 ' fixed to the second door 22 ', and the first extension arm 23 and the second extension arm 23 ' are hinged to the outer circumferential surface of the can body 10 at the same height. When the state of the opening and closing mechanism 20 needs to be switched, the driving force acts on the first door body 22 and the second door body 22 'or acts on the first extension arm 23 and the second extension arm 23', and the first bottom opening door 21 and the second bottom opening door 21 'respectively rotate around the hinge axes of the first extension arm 23 and the second extension arm 23' and the tank body 10, so that the opening and closing of the lower opening 12 are realized. Preferably, the first extension arm 23 is offset from the center of gravity of the first door 22 and is disposed close to the second bottom-opening door 21'; the second extension arm 23 'is disposed adjacent to the first bottom opening door 21 away from the center of gravity of the second door body 22'; therefore, the first door body 22 and the second door body 22' can be kept close to each other under the action of gravity, and the closing under the action of gravity is realized. The first door 22 and the second door 22' may further have a manual fixing structure acting therebetween, such as a snap or a latch, to improve the sealing performance of the opening/closing mechanism 20 on the lower opening 12 in a closed state.

According to a preferred embodiment of the present application, as shown in fig. 3, the first door 22 of the bottom-discharge type slag pot includes a first hoisting structure 24, and the first hoisting structure 24 is disposed away from the second bottom-opening door 21' away from the center of gravity of the first door 22; the second door body 22 'includes a second lifting structure 24', the second lifting structure 24 'being disposed away from the first bottom opening door 21 away from a center of gravity of the second door body 22'. As shown in fig. 6, the first hoisting structure 24 and the second hoisting structure 24 'are used for connecting a hoisting mechanism, so that the first door body 22 and the second door body 22' can swing in a direction away from each other under the condition that the hoisting mechanism is directly pulled upwards (dotted arrow in fig. 6), thereby greatly saving the driving space.

In order to be able to accurately control the position of the point where the slag pot discharges the steel slag, the first and second bottom-opening doors 21 and 21' are preferably moved synchronously such that the opened discharge opening is always located at the middle position of the lower opening 12. The synchronization of the first bottom-opening door 21 and the second bottom-opening door 21 'can be realized by synchronous driving, and a synchronization mechanism can be arranged between the first bottom-opening door 21 and the second bottom-opening door 21' to keep the relative movement between the two doors synchronous all the time. The synchronizing mechanism may be in the form of a geared or linkage arrangement. Preferably, as shown in fig. 3 and 6, a linkage mechanism 25 is formed between the adjacent first extension arm 23 and the second extension arm 23 ', and the linkage mechanism 25 is used for keeping the first extension arm 23 and the second extension arm 23' synchronously rotated when the opening and closing mechanism 20 is switched between the closed state and the open state.

According to this preferred embodiment, the linkage 25 can also be used to create a self-locking under the pressure of the steel slag in the housing chamber 13 to keep the opening and closing mechanism 20 closed. In the closed state of the opening and closing mechanism 20, under the condition of full steel slag loading, the gravity is dispersed outwards due to the inclined plane design formed by the first bottom opening door 21 and the second bottom opening door 21 ' at the bottom of the accommodating cavity 13 of the slag tank, and the gravity center points of the first bottom opening door 21 and the second bottom opening door 21 ' are arranged at the outer sides of the first extension arm 23 and the second extension arm 23 ', so that the lower opening door cannot be opened by itself under the gravity action of the steel slag, and the connecting rod mechanism 25 provides a self-locking function to a certain extent. And the first hoisting structure 24 and the second hoisting structure 24 ' connected with the hoisting mechanism are respectively positioned at the other sides of the first extension arm 23 and the second extension arm 23 ' relative to the center of gravity point, so that the first bottom opening door 21 and the second bottom opening door 21 ' can be opened under the action of the tension of the hoisting mechanism without the self-locking influence of the connecting rod mechanism 25.

The preferred embodiments of the present application have been described in detail above, but the present application is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present application within the technical idea of the present application, and these simple modifications all belong to the protection scope of the present application.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described in the present application.

In addition, any combination of the various embodiments of the present application is also possible, and the same should be considered as disclosed in the present application as long as it does not depart from the idea of the present application.

Claims

1. The slag pot is characterized in that the bottom of the slag pot (10) is provided with a lower opening (12) communicated with the accommodating cavity and an opening and closing mechanism (20) used for selectively opening or closing the lower opening (12).

2. The bottom-discharge slag pot according to claim 1, characterized in that in the closed state of the opening and closing mechanism (20), the opening and closing mechanism (20) closes the lower opening (12) of the pot (10);

in the open state of the opening and closing mechanism (20), the opening and closing mechanism (20) opens the lower opening (12) of the tank body (10) to allow the steel slag in the accommodating cavity (13) to be discharged out of the slag tank through the lower opening (12).

3. The bottom discharge slag pot according to claim 1,

the tank body (10) is cylindrical, or the tank body (10) is cylindrical with a rectangular or other polygonal cross section; and/or

The horizontal cross-sectional area of the tank body (10) at the upper opening (11) is larger than or equal to that of the tank body at the lower opening (12).

4. The bottom discharge slag ladle according to claim 1, wherein the ladle body (10) comprises an outer shell (14) and an inner liner (15) detachably mounted inside the outer shell (14), and an insulating material is provided between the outer shell (14) and the inner liner (15).

5. The bottom discharge slag ladle according to claim 1, wherein the opening and closing mechanism (20) comprises a first bottom-opening door (21) and a second bottom-opening door (21'),

in the closed state of the opening and closing mechanism (20), the first bottom opening door (21) and the second bottom opening door (21') are close to each other to close the lower opening (12) of the tank body (10); in the open state, the first and second bottom-opening doors (21, 21 ') are distanced from each other to allow the steel slag in the housing chamber (13) to pass between the first and second bottom-opening doors (21, 21').

6. Bottom-discharge slag ladle according to claim 5, characterized in that in the closed state the first and second bottom-opening doors (21, 21') form an arc-shaped or wedge-shaped bottom shape in the receiving chamber (13).

7. The bottom discharge slag ladle according to claim 5, wherein the first and second bottom-opening doors (21, 21 ') each comprise an outer shell (14') and an inner liner (15 ') detachably mounted inside the outer shell (14'), with an insulating material disposed between the outer shell (14 ') and the inner liner (15').

8. The bottom discharge slag pot according to claim 5,

the first bottom opening door (21) comprises a first door body (22) and a first extension arm (23) fixed on the first door body (22), and the first extension arm (23) deviates from the gravity center of the first door body (22) and is arranged close to the second bottom opening door (21');

the second bottom opening door (21 ') comprises a second door body (22') and a second extension arm (23 ') fixed on the second door body (22'), and the second extension arm (23 ') is deviated from the gravity center of the second door body (22') and is arranged close to the first bottom opening door (21);

the first extension arm (23) and the second extension arm (23') are hinged on the same height of the outer peripheral surface of the tank body (10).

9. The bottom discharge slag pot according to claim 8,

the first door body (22) comprises a first hoisting structure (24), and the first hoisting structure (24) deviates from the gravity center of the first door body (22) and is arranged far away from the second bottom opening door (21');

the second door body (22 ') comprises a second hoisting structure (24'), and the second hoisting structure (24 ') deviates from the gravity center of the second door body (22') and is arranged far away from the first bottom opening door (21);

the first hoisting structure (24) and the second hoisting structure (24 ') are used for being connected with a hoisting mechanism, so that the first door body (22) and the second door body (22') can swing towards the direction away from each other under the condition that the hoisting mechanism is pulled upwards.

10. Bottom-discharge slag ladle according to claim 8, characterized in that a linkage (25) is formed between adjacent first (23) and second (23') extension arms,

in the closed state of the opening and closing mechanism (20), the link mechanism (25) is used for forming self-locking under the pressure action of the steel slag in the accommodating cavity (13) so as to keep the opening and closing mechanism (20) in the closed state;

the linkage (25) is configured to maintain the first and second extension arms (23, 23') in synchronized rotation when the opening and closing mechanism (20) is switched between the closed state and the open state.