CN113462831A

CN113462831A - Slag tank filtering device and method for steel slag pretreatment

Info

Publication number: CN113462831A
Application number: CN202110863571.8A
Authority: CN
Inventors: 王宇鹏; 席玉洁; 苑海东; 陈玲; 王康; 张一平
Original assignee: Central Research Institute of Building and Construction Co Ltd MCC Group; MCC Energy Saving and Environmental Protection Co Ltd
Current assignee: Central Research Institute of Building and Construction Co Ltd MCC Group; MCC Energy Saving and Environmental Protection Co Ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2021-10-01
Anticipated expiration: 2041-07-29
Also published as: CN113462831B

Abstract

The invention discloses a slag pot filtering device and a method for steel slag pretreatment, which comprises a bracket detachably connected to a slag pot, and a pot cover slidably connected between the top of the slag pot and the bracket, wherein the pot cover, the bracket and the bracket are slidably arranged; the driving component drives the tank cover to slide on the slag tank; the filtering device also comprises a jointing device positioned above the tank cover, and the jointing device is used for applying pressure to the top of the tank cover so as to make the bottom surface of the tank cover tightly jointed with the top edge of the slag tank; the tank cover can be adjusted according to actual use, so that the size of an opening between the tank cover and the slag tank is changed, slag blocks with different sizes can be conveniently filtered, pressure can be applied to the top of the tank cover through the attaching device above the tank cover, the bottom surface of the tank cover is tightly attached to the edge of the top of the slag tank to prevent leakage, and potential safety hazards during pouring of liquid steel slag are reduced.

Description

Slag tank filtering device and method for steel slag pretreatment

Technical Field

The invention relates to the technical field of steel slag treatment, in particular to a slag tank filtering device and method for steel slag pretreatment.

Background

Along with the increasing importance of people on the environment, the requirement on the environment is also higher, and the steel slag treatment in factories is beneficial to reducing the environmental pollution and recycling the steel slag. After the steel slag is poured into the liquid slag tank from the converter, the steel slag is agglomerated due to various reasons, such as temperature, slag charge and the like, and is not beneficial to treatment and recovery of the steel slag;

the conventional slag pot does not have a filtering device for filtering slag blocks when being dumped, so that subsequent liquid steel slag is inconvenient to treat.

Disclosure of Invention

The invention aims to provide a slag pot filtering device for steel slag pretreatment, which aims to solve the problem of how to filter slag blocks in a slag pot when the slag pot is dumped.

In order to achieve the aim, the invention provides a slag pot filtering device for steel slag pretreatment, which comprises a bracket and a pot cover, wherein the bracket is detachably connected to a slag pot; the driving component drives the tank cover to slide on the slag tank so as to change the size of an opening between the tank cover and the slag tank; the filtering device also comprises a laminating device positioned above the tank cover, and the laminating device is used for applying pressure to the top of the tank cover to ensure that the bottom surface of the tank cover is tightly laminated with the top edge of the slag tank.

The cover can be adjusted according to in-service use to change the opening size between cover and the slag ladle, be convenient for filter the cinder of equidimension not, and the laminating device through the cover top can exert pressure to the cover top, make the top edge of cover bottom surface and slag ladle closely laminate and prevent to reveal, reduce the potential safety hazard that exists when empting liquid slag.

As a preferred embodiment of the present invention: the driving part comprises a pull rod which is arranged at the top of the tank cover and is used for pulling the tank cover to move; and the limiting component is used for fixing after the tank cover moves, the pull rod is pulled, the tank cover is driven to open the opening between the leaked tank cover and the slag pot, the pull rod is continuously pulled when the size of the opening needs to be adjusted, and the effect of preventing the tank cover from resetting is achieved through the limiting component.

As a preferred embodiment of the present invention: the limiting component comprises a support lug fixedly connected to the top of the tank cover, a push rod is fixedly connected to the support lug, one end, far away from the support lug, of the push rod penetrates through a support fixedly connected with supporting plate, at least one plate body with a plurality of ratchets and arranged at equal intervals is fixedly connected to the supporting plate, a limiting plate is fixed between the supporting rods, the limiting plate is connected with a clamping rod through a torsion spring, and the clamping rod is clamped into a ratchet groove in the plate body under the action of the torsion spring to achieve fixing.

As a preferred embodiment of the present invention: the driving part comprises a first rotating shaft which is rotatably connected to the supporting rod; the tank cover is provided with a first rack meshed with the first gear, and the tank cover further comprises a driving source for driving the first rotating shaft to rotate.

As a preferred embodiment of the present invention: the driving source comprises a fixed seat fixed on the supporting rod, and a motor is arranged on the fixed seat; and the two output ends of the clutch are respectively fixed at the output end of the motor and one end of the first rotating shaft.

As a preferred embodiment of the present invention: the drive source includes a turntable mounted on a first shaft.

As a preferred embodiment of the present invention: the laminating device comprises a second rotating shaft which is rotatably connected to the supporting rod, and a synchronizing mechanism is arranged between the second rotating shaft and the first rotating shaft; the second gear is fixedly connected to two extending ends of the second rotating shaft; the second rack is connected to the support in a sliding mode and meshed with the second gear, a clamping portion is connected to the lower end of the second rack in a telescopic mode, and the clamping portion is attached to the upper surface of the tank cover to apply pressure.

As a preferred embodiment of the present invention: at least two through holes are formed in the second rack, the clamping part comprises a sliding rod which slides in the through holes, the lower end of the sliding rod is fixedly connected with a base, a pressing wheel is rotatably connected in the base and is attached to the upper surface of the tank cover, and a second elastic element is arranged between the base and the second rack.

As a preferred embodiment of the present invention: the synchronizing mechanism comprises a first pulley mounted on a first shaft; a second belt wheel mounted on the second rotating shaft; and a belt sleeved between the first belt wheel and the second belt wheel.

As a preferred embodiment of the present invention: the support is of a frame structure formed by combining two rod pieces, each rod piece is fixedly formed by two side edges and one top edge, a slot can be formed at the joint of the support and the trunnion support at the two sides of the slag pot, and a pin shaft is inserted into the slot to fix the support and the slag pot.

As a preferred embodiment of the present invention: the tank cover is in the shape that one end is a flat opening, the opposite side is an arc surface, and an arc baffle for limiting the movement of the tank cover is fixed at the bottom of one end of the arc surface.

As a preferred embodiment of the present invention: a supporting rod is fixed on the top edge of the support, a sliding groove with an inverted convex-shaped cross section is formed in the bottom of the supporting rod, and a sliding block which slides in the sliding groove is fixedly connected to the framework.

The invention also provides a slag pot filtering method for steel slag pretreatment, which adopts the slag pot filtering device for steel slag pretreatment and comprises the following steps:

s1, putting hot steel slag into a slag pot (1), and installing a filtering device on the top of the slag pot (1) after the hot steel slag is put into the slag pot (1);

s2, pretreating hot steel slag, adjusting the filtering aperture of a filtering device, and separating slag blocks from slag liquid through the filtering device;

s3, the slag ladle is rotated to a certain angle by using a tilting mechanism to pour out the steel slag, and the slag ladle (1) is reset after being poured out to take down the filtering device.

Compared with the prior art, the slag ladle is provided with the filtering device to filter the slag blocks, the cover in the filtering device can be adjusted according to actual use, so that the size of an opening between the cover and the slag ladle is changed, the slag blocks with different sizes can be conveniently filtered, pressure can be applied to the top of the cover by the attaching device above the cover, the bottom surface of the cover is tightly attached to the edge of the top of the slag ladle to prevent leakage, potential safety hazards in pouring liquid steel slag are reduced, the molten steel poured out of the slag ladle does not contain large steel slag after pretreatment, and the process is simple and rapid and is favorable for subsequent steel slag treatment.

Drawings

FIG. 1 is a schematic structural view of a first embodiment of a slag pot filtering apparatus for steel slag pretreatment according to the present invention;

FIG. 2 is a schematic structural view of a second embodiment of a slag pot filtering apparatus for steel slag pretreatment according to the present invention;

FIG. 3 is a front view of a second embodiment of the slag pot filtering device for steel slag pretreatment according to the present invention;

FIG. 4 is a left side view of a second embodiment of a slag pot filtering device for steel slag pretreatment according to the present invention;

FIG. 5 is a top view of a second embodiment of the slag pot filtration apparatus for steel slag pretreatment according to the present invention;

FIG. 6 is a schematic view of a part of a second embodiment of a slag pot filtering apparatus for steel slag pretreatment according to the present invention;

FIG. 7 is a schematic view of a portion of the structure of FIG. 6 of a slag pot filtration apparatus for steel slag pretreatment according to the present invention;

FIG. 8 is a schematic view of the structure of part A of FIG. 2 of the slag pot filtering apparatus for steel slag pretreatment according to the present invention.

In the figure: 1. a slag pot; 11. a trunnion support; 2. a support; 21. a strut; 3. a can lid; 31. a framework; 32. a slider; 33. an arc-shaped baffle plate; 34. a first rack; 4. a pull rod; 41. supporting a lug; 42. a push rod; 43. a first elastic element; 44. a support plate; 45. a plate body; 46. a limiting plate; 47. a clamping rod; 5. a motor; 51. a fixed seat; 52. a clutch; 53. a first rotating shaft; 54. a first gear; 55. a first pulley; 56. a belt; 57. a second pulley; 58. a second rotating shaft; 59. a second gear; 510. a second rack; 511. a base; 512. a slide bar; 513. a second elastic element; 6. a turntable.

Detailed Description

The technical aspects of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the invention discloses a slag pot filtering device for steel slag pretreatment, which comprises a slag pot 1 with an open top and a pot cover 3 positioned at an opening of the slag pot 1, wherein the pot cover 3 can seal the opening of the slag pot 1 and can also seal most of the openings to only leave openings with smaller areas for liquid steel slag to flow out so as to seal slag blocks and separate the liquid steel slag from the slag blocks.

As shown in fig. 1 and 3, trunnion supports 11 are symmetrically fixed on the side wall of a slag pot 1, a support 2 is fixedly connected to the two trunnion supports 11, the support 2 is a frame structure formed by combining two rod members, each rod member has two side edges and a top edge which are fixedly formed, the top edge has a certain distance with the top surface of the slag pot 1 for the movement of a pot cover 3, the pot cover 3 and the support 2 can also be fixed, a slot can be formed at the joint of the support 2 and the trunnion support 11, and a pin shaft is inserted into the slot to fix the support 2 and the slag pot 1;

3 top fixedly connected with skeletons 31 of cover, the shape of cover 3 is that one end is the cambered surface for the relative limit of plain end, the fixed cowl 33 that is used for restricting the removal of cover 3 in one end bottom of this cambered surface, this embodiment sets up cover 3 and slag pot 1 into sliding connection, the benefit lies in can adjusting the opening size between cover 3 and the slag pot 1, be convenient for carry out the shutoff to the slag block of difference, a branch 21 of fixed on the topside of support 2, this branch 21 bottom is equipped with the spout of cross-section for falling the type, fixedly connected with slides the slider 32 in this spout on the skeleton 31.

As shown in figure 1, the invention discloses a first embodiment for driving the tank cover 3 to move between the bracket 2 and the slag pot 1, which comprises a pull rod 4 arranged at the top of the tank cover 3 for pulling the tank cover 3 to move, in order to automatically clamp the tank cover 3 after being pulled open, a limiting component is arranged for limiting the tank cover 3, the limiting device specifically comprises two support lugs 41 fixed at the top of the tank cover 3, push rods 42 fixedly connected with the two support lugs 41, a support plate 44 fixed through the bracket 2 at one end of the push rod 42 far away from the support lugs 41, a plate body 45 with a plurality of ratchet teeth and arranged at equal intervals fixed on the support plate 44, a limiting plate 46 fixed between the support rods 21, a clamping rod 47 connected with the limiting plate 46 through a torsion spring (shown in the figure), the clamping rod 47 clamped into a ratchet groove on the plate body 45 under the action of the torsion spring, so that the plate body 45 can only move in one direction, and can reset by releasing the locking of the plate body 45 through pressing the upper end of the clamping rod 47, in order to reset the tank cover 3 automatically under the normal state, set up a first elastic element 43 between the tank cover 3 and support 2, this first elastic element 43 can be the spring, the spring cup joints on the push rod 42, and both ends offset with journal stirrup 41 and support 2, through pulling the pull rod 4 during the use, drive the tank cover 3 this moment and open the opening that leaks between tank cover 3 and the slag ladle 1, it lasts to pull the pull rod 4 to need to adjust the opening size, and then the ratchet on the plate body 45 cooperatees with kelly 47, prevent that the tank cover 3 from resetting, first elastic element 43 receives the extrusion shrink when pulling the pull rod 4, can make the slot block between kelly 47 and a plurality of ratchets closely prevent to become flexible under the effect of elasticity.

As shown in fig. 2-8, the present invention discloses a second embodiment for driving the tank cover 3 to move between the bracket 2 and the slag tank 1, which is substantially the same as the first embodiment, and different from the driving component for driving the tank cover 3 to move, a first rotating shaft 53 for bearing a first gear 54 is rotated on the supporting rod 21, the tank cover 3 is provided with a first rack 34 engaged with the first gear 54, the first rack 34 is located below the first gear 54, when in use, the first rotating shaft 53 is rotated to drive the first gear 54 to rotate, and the first rack 34 is driven to move in one direction under the rotation of the first gear 54, so as to drive the tank cover 3 to open and close, and the first gear 54 and the first rack 34 are provided in two sets, so as to improve the stability of the transmission.

As shown in fig. 2, 5, 6 and 8, in order to drive the first rotating shaft 53 to rotate, the present embodiment discloses two driving sources for driving the first rotating shaft 53 to rotate, which includes a fixed seat 51 mounted on the supporting rod 21 for carrying the motor 5, and a clutch 52 fitted between the motor 5 and the first rotating shaft 53, wherein the clutch 52 is a clutch 52 commonly used in existing lathes or other processing machines, the clutch 52 is used for separating the output end of the motor 5 from the first rotating shaft 53, and after separation, the rotating disk 6 at the other end of the first rotating shaft 53 is manually rotated, and the manual rotation has the advantage that the tank cover 3 can be finely adjusted according to the working experience.

As shown in fig. 2, 5, 6 and 8, in order to solve the problem that the opening of the can cover 3 is not tightly sealed while moving, in the embodiment, a bonding device is added on the basis of the original device, and the bonding device can apply pressure to the top of the can cover 3, so that the bottom surface of the can cover 3 is tightly bonded with the top edge of the slag pot 1 to prevent leakage, and the potential safety hazard during pouring of liquid steel slag is reduced;

taking the second embodiment as an example, a second rotating shaft 58 is rotatably connected to the supporting rod 21, the synchronizing mechanism between the second rotating shaft 58 and the first rotating shaft 53 can be a belt transmission or a chain transmission or a gear transmission or other mechanisms capable of making the second rotating shaft 58 and the first rotating shaft 53 perform synchronous motion, it should be noted that the synchronous motion can be reverse rotation or same rotation, the embodiment discloses a belt transmission, a first belt wheel 55 is installed on the first rotating shaft 53, a second belt wheel 57 is installed on the second rotating shaft 58, the two belt wheels are connected by a belt 56, a second gear 59 is respectively fixed at two extending ends of the second rotating shaft 58, a second rack 510 is installed above the can lid 3, the second rack 510 can be slidably connected to the bracket 2, so that the second rack 510 is driven to move downwards during the rotation of the second gear 59, and the clamping part of the telescopic connection at the bottom of the second rack 510 is attached to the upper surface of the can lid 3 to apply pressure, the tank cover 3 is attached to the top edge of the slag tank 1 to achieve the sealing effect.

As shown in fig. 7, at least two through holes are formed in the second rack 510, the clamping portion includes a sliding rod 512 sliding in the through hole, a base 511 is fixedly connected to the lower end of the sliding rod 512, a pressing wheel is rotatably connected to the base 511, the pressing wheel is attached to the upper surface of the can cover 3, a second elastic element 513 is disposed between the base 511 and the second rack 510, the second elastic element 513 may be a spring sleeved on the sliding rod 512, two ends of the spring respectively abut against the base 511 and the bottom wall of the second rack 510, and the pressure of the pressing wheel on the can cover 3 is increased along with the compression of the spring.

A hot steel slag is placed into a slag tank 1 for pretreatment, then a tipping mechanism is used for pouring the slag to a certain angle to pour out the steel slag, a filtering device is installed at the top of the slag tank 1 after the hot steel slag is placed into the slag tank 1, the filtering aperture of the filtering device is adjusted, a slag block and slag liquid are separated through the filtering device, and the filtering device is reset and taken down after the slag tank 1 is poured.

According to the slag ladle filtering device, when the slag ladle 1 is dumped, the filtering device is placed on the slag ladle 1 through the crown block, the two rod pieces of the support 2 are clamped on the two sides of the trunnion support 11, the pin shaft can be inserted through the through holes formed in the two rod pieces and the trunnion support 11 to complete locking action, then the slag ladle 1 is rotated to a certain angle through the crown block or other tilting mechanisms, molten steel in the slag ladle 1 is reserved from the opening at the top of the ladle cover 3 and the slag ladle 1, the slag block is reserved in the slag ladle 1, the slag ladle 1 rotates reversely to a certain angle until the slag ladle 1 returns, the pin shaft is pulled out, and the crown block removes the filtering device from the slag ladle 1.

When the filtering device is adjusted, the pull rod 4 is pulled, the tank cover 3 is driven to open an opening between the tank cover 3 and the slag tank 1, the pull rod 4 is continuously pulled when the size of the opening needs to be adjusted, further, the ratchets on the plate body 45 are matched with the clamping rod 47, the tank cover 3 is prevented from resetting, the first elastic element 43 is extruded and contracted when the pull rod 4 is pulled, the clamping rod 47 can be tightly clamped with the grooves among the ratchets under the action of elastic force to prevent loosening, the scheme is convenient to adjust and only needs to be pulled manually, but the required force is larger;

the second mode is that the first rotating shaft 53 is driven to rotate by the motor 5 or the rotating disc 6 to drive the first gear 54 to rotate, and then the first rack 34 is driven to move towards one direction under the rotation of the first gear 54, so that the tank cover 3 is driven to be opened and closed.

According to the slag ladle, the filter device is arranged on the slag ladle 1 to filter slag blocks, the cover 3 in the filter device can be adjusted according to actual use, so that the size of an opening between the cover 3 and the slag ladle 1 is changed, the slag blocks with different sizes can be conveniently filtered, pressure can be applied to the top of the cover 3 through the attaching device above the cover 3, the bottom surface of the cover 3 is tightly attached to the edge of the top of the slag ladle 1 to prevent leakage, potential safety hazards in liquid steel slag pouring are reduced, after pretreatment is carried out, molten steel poured out of the slag ladle 1 does not contain large steel slag, and the process is simple and rapid and is beneficial to subsequent steel slag treatment.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a slag pot filter equipment for slag preliminary treatment which characterized in that: comprises a bracket (2) detachably connected on a slag pot (1), a pot cover (3) slidably connected between the top of the slag pot (1) and the bracket (2), a driving part, a limiting part fixed after the pot cover (3) moves and a laminating device positioned above the pot cover (3), the tank cover (3) and the bracket (2) are arranged in a sliding manner, a supporting rod (21) is fixed on the top edge of the bracket (2), the tank cover (3) is driven by a driving part to slide on the slag tank (1), so as to change the size of the opening between the tank cover (3) and the slag tank (1), the attaching device is used for applying pressure to the top of the tank cover (3) to enable the bottom surface of the tank cover (3) to be closely attached to the top edge of the slag tank (1), the driving component comprises a pull rod (4) which is arranged at the top of the tank cover (3) and is used for pulling the tank cover to move.

2. The slag pot filtering device for steel slag pretreatment according to claim 1, wherein: spacing part includes lug (41) of fixed connection at cover (3) top, fixedly connected with push rod (42) on this lug (41), and support (2) fixedly connected with extension board (44) are passed to the one end that lug (41) were kept away from in push rod (42), and at least one plate body (45) that have a plurality of ratchets and equidistance and arrange are gone up fixedly connected with to this extension board (44), fixed a limiting plate (46) between branch (21), limiting plate (46) have kelly (47) through torsional spring connection, and kelly (47) are gone into the ratchet groove on plate body 45 under the effect of torsional spring and are realized fixedly.

3. The slag pot filtering device for steel slag pretreatment according to claim 1, wherein: the driving part comprises a first rotating shaft (53) which is rotatably connected to the support rod (21); and at least one first gear (54) fixed with the first rotating shaft (53), wherein a first rack (34) meshed with the first gear (54) is arranged on the tank cover (3), and the tank cover further comprises a driving source for driving the first rotating shaft (53) to rotate.

4. The slag pot filtering device for steel slag pretreatment of claim 3, wherein: the driving source comprises a fixed seat (51) fixed on the support rod (21), and a motor (5) is installed on the fixed seat (51); and the clutch (52) is positioned between the first rotating shaft (53) and the output end of the motor (5), and two output ends of the clutch (52) are respectively fixed on the output end of the motor (5) and one end of the first rotating shaft (53).

5. The slag pot filtering device for steel slag pretreatment according to claim 3 or 4, wherein: the drive source includes a turntable (6) mounted on a first shaft (53).

6. The slag pot filtering device for steel slag pretreatment according to claim 1, wherein: the laminating device comprises a second rotating shaft (58) which is rotatably connected to the support rod (21), and a synchronizing mechanism is arranged between the second rotating shaft (58) and the first rotating shaft (53); and a second gear (59) fixedly connected to two extending ends of the second rotating shaft (58); and the second rack (510) is connected to the bracket (2) in a sliding manner and meshed with the second gear (59), the lower end of the second rack (510) is telescopically connected with a clamping part, and the clamping part is abutted to the upper surface of the tank cover (3) to apply pressure.

7. The slag pot filtering device for steel slag pretreatment of claim 6, wherein: at least two through holes are formed in the second rack (510), the clamping part comprises a sliding rod (512) which slides in the through holes, the lower end of the sliding rod (512) is fixedly connected with a base (511), a pressing wheel is rotatably connected to the base (511) and attached to the upper surface of the tank cover (3), and a second elastic element (513) is arranged between the base (511) and the second rack (510).

8. The slag pot filtering device for steel slag pretreatment according to claim 6 or 7, wherein: the synchronizing mechanism comprises a first pulley (55) mounted on a first shaft (53); a second pulley (57) mounted on the second shaft (58); and a belt (56) that is fitted between the first pulley (55) and the second pulley (57).

9. The slag pot filtering device for steel slag pretreatment according to claim 1, wherein; the support (2) is a frame structure formed by combining two rod pieces, each rod piece is provided with two side edges and a top edge which are fixedly formed, a slot can be formed at the joint of the support (2) and the trunnion support (11) at the two sides of the slag pot (1), and a pin shaft is inserted into the slot to fix the support (2) and the slag pot (1).

10. The slag pot filtering apparatus for steel slag pretreatment according to claim 9, wherein; cover (3) top fixedly connected with skeleton (31), the shape of cover (3) is that one end is the relative limit of plain end for the cambered surface, and fixed one of the one end bottom of this cambered surface is used for restricting cowl (33) that cover (3) removed, and this branch (21) bottom is equipped with the spout of cross-section for falling the type of dogbone, fixedly connected with slides slider (32) in this spout on skeleton (31).

11. A method of filtering a slag pot for steel slag pretreatment, comprising the slag pot filtering apparatus for steel slag pretreatment according to any one of claims 1 to 10, comprising the steps of: