CN113061672A - Get hot storehouse and molten steel slag heat reclamation device - Google Patents

Abstract

The invention discloses a heat taking bin and a molten steel slag heat recovery device, which comprises a cabin body and a cabin door, wherein the cabin door is rotatably connected to the cabin body, the cabin door and the cabin body can form a closed space, and the cabin body comprises a steel structure frame; the refractory bricks are fixedly connected to the steel structure frame; the first heat-preservation felt is used for covering the exterior of the refractory bricks; the heat exchange device is arranged at the top of the cabin body, the capsule type pressure container, the steam ascending pipe, the condensation descending pipe, the water supplementing pipe and the second heat preservation felt are arranged on the capsule type pressure container, the second heat preservation felt covers the capsule type pressure container to form a heat preservation surface, the heat exchange surface is arranged on the lower surface of the capsule type pressure container, and saturated water is filled in the capsule type pressure container.

Description

Get hot storehouse and molten steel slag heat reclamation device

Technical Field

The invention relates to the technical field of steel slag waste heat recovery, in particular to a heat taking bin and a molten steel slag heat recovery device.

Background

About 0.12-0.14 ton of steel slag is generated per 1 ton of steel, the generation amount of steel slag in China in 2019 is about 1.1 hundred million tons, and the utilization of waste heat of the steel slag is almost 0, so that huge energy waste is caused.

The steel slag rolling crushing and pressing hot disintegrating process technology realizes the continuity, the equipment and the automation of steel slag treatment in China, usually, molten steel slag still has a high temperature of about 1500 ℃ before entering a rolling crusher, but the steel slag temperature is about 1200 ℃, the operation requirement of entering the rolling crusher is met, the temperature difference is 300 ℃ from 1500 ℃ to 1200 ℃, and the steel slag rolling crushing and pressing hot disintegrating process technology has high waste heat recovery potential.

Therefore, the invention aims to solve the problems of recycling the radiant heat of the molten steel slag, reducing the damage degree of the rolling crusher caused by high temperature and prolonging the service life of the rolling crusher.

Disclosure of Invention

The invention aims to solve the problems of cooling high-temperature steel slag and recovering heat, and provides a method for utilizing waste heat of the steel slag to use a heat taking bin and a molten steel slag heat recovery device.

In order to achieve the purpose, the invention adopts the following technical scheme:

a heat collecting bin comprises a bin body and a bin door, wherein the bin door is rotatably connected to the bin body, the bin door and the bin body can form a closed space, and the bin body comprises a steel structure frame; the refractory bricks are fixedly connected to the steel structure frame; the first heat-preservation felt is used for covering the exterior of the refractory bricks; the capsule type pressure vessel is characterized in that the top of the cabin body is provided with a heat exchange device, the capsule type pressure vessel, a steam ascending pipe, a condensation descending pipe, a water supplementing pipe and a second heat preservation felt are arranged on the capsule type pressure vessel, the second heat preservation felt covers the capsule type pressure vessel to form a heat preservation surface, the lower surface of the capsule type pressure vessel is a heat exchange surface, and saturated water is filled in the capsule type pressure vessel.

Preferably, the number N of the heat extraction chambers is determined by the slag incoming frequency and the heat exchange time of a single heat extraction chamber, and the specific calculation formula is N ═ { T1/T2} +1, wherein T1 is the time of the whole process, T2 is the heat exchange time of a single heat extraction chamber, the symbol { } is rounded up, and T2 is 1h-1.5 h.

Preferably, the first heat-preservation felt and the second heat-preservation felt are made of rock wool or slag wool, the heat conductivity coefficient of the refractory bricks is smaller than 1.5, and the refractory bricks are made of high-alumina bricks or corundum bricks.

A molten steel slag heat recovery device comprises a movable base; the slag pot is movably connected above the movable base; wherein, the pillar fixed connection backup pad is passed through at the removal base top, sliding connection has the lift post in the backup pad, be equipped with the drive division in the storehouse of getting hot, lift post upper end with the sediment jar is fixed, the lower extreme with the output of drive division is connected, the drive division is used for the drive the lift post goes up and down in the backup pad.

Preferably, the drive division includes fixed connection at the first motor of getting hot bin outer wall, the output fixedly connected with pivot of first motor, fixedly connected with cam in the pivot, the lift post lower extreme with the laminating of cam surface slides, be equipped with on the removal base and be used for supporting the supporting component of pivot.

Preferably, the support member comprises at least one first roller fixedly connected to the rotating shaft; at least one second roller corresponding to the first roller in a fit manner; wherein, the second gyro wheel rotates to be connected on the removal base.

Preferably, the movable base comprises a plurality of sealed cavities, a first piston is connected in the sealed sliding mode in the sealed cavities, the upper end of the first piston is fixedly connected with a push rod, the upper end of the push rod is fixedly connected with a press plate, the push rod is sleeved with a first spring, two ends of the first spring are respectively propped against the sealing cavity and the pressing plate, a cavity is arranged in the movable base, a second piston is hermetically and slidably connected in the cavity, the lower end of the second piston is fixedly connected with a support rod, the lower end of the support rod penetrates through the lower wall of the movable base and extends downwards, and the extending end of the supporting rod is fixedly connected with a clamping head, the supporting rod is sleeved with a second spring, the two ends of the second spring are respectively abutted against the second piston and the inner wall of the bottom of the cavity, the pressing plate is abutted against the outer surface of the cam, and the sealing cavity is communicated with the cavity through a sealing pipeline.

Preferably, the sealed pipeline is provided with a one-way valve, and the cavity is provided with an air escape valve.

Preferably, the upper end of the lifting column is fixedly connected with a bottom support, and one end, far away from the lifting column, of the bottom support is abutted to the slag pot.

Preferably, the bottom of the supporting plate is slidably connected with a clamping plate, a through groove is formed in the clamping plate, the lifting column is slidably connected in the through groove, a clamping groove is formed in the side wall of the bottom of the lifting column, one end of the through groove is fixedly connected with a clamping block matched with the clamping groove, a stop block is fixedly connected to the bottom of the supporting plate, a third spring is connected between the stop block and the clamping plate, a protrusion is fixedly connected to the inner wall of the heating bin, and the protrusion abuts against the clamping plate.

Compared with the prior art, the invention provides a method for utilizing the waste heat of steel slag, which has the following beneficial effects:

according to the invention, the molten steel slag is placed in the slag tank, and the crushing plough, the capsule type pressure container and the steam drum are additionally arranged at the top of the heat taking cabin, so that the radiant heat utilization of the molten steel slag can be realized, the energy is saved, the damage degree of high temperature to the rolling crusher is reduced, the service life of the rolling crusher is prolonged, and the equipment maintenance rate is reduced.

Drawings

FIG. 1 is a schematic structural diagram of a method for utilizing waste heat of steel slag according to the present invention;

FIG. 2 is a first schematic structural view of a heat extraction bin and a molten steel slag heat recovery device according to the present invention;

FIG. 3 is a schematic structural view of a heat extraction bin and a molten steel slag heat recovery device according to the present invention;

FIG. 4 is a schematic structural view of a heat removal module according to the present invention;

FIG. 5 is a schematic view of a part of the structure of a heat extraction bin and a molten steel slag heat recovery device according to the present invention;

FIG. 6 is a schematic view of part A of FIG. 2 showing a heat removal bin and a molten steel slag heat recovery device according to the present invention;

FIG. 7 is a schematic structural view of part C in FIG. 6 of a heat removal bin and a molten steel slag heat recovery device according to the present invention;

FIG. 8 is a first schematic structural view of a plow for treating molten steel slag according to the present invention;

FIG. 9 is a schematic structural view of a molten steel slag processing slag breaking plow according to the present invention;

FIG. 10 is a schematic structural view of a portion D in FIG. 8 of a plow for processing molten steel slag according to the present invention;

FIG. 11 is a schematic view of the structure E in FIG. 8 of a plow for treating molten steel slag according to the present invention.

In the figure: 101. a slag pot; 2. rolling a crusher; 3. a steam drum; 4. a heat taking chamber; 5. driving a vehicle; 6. a steel slag transportation device; 401. a steel structural frame; 402. a first heat-preserving felt; 403. a refractory brick; 404. a first motor; 405. a rotating shaft; 406. a cam; 407. a first roller; 408. a second roller; 409. a capsule-type pressure vessel; 4091. a second insulation blanket; 410. a steam riser pipe; 411. a condensation downcomer; 412. a water replenishing pipe; 413. a protrusion; 414. clamping a plate; 415. a through groove; 417. a clamping block; 418. a card slot; 419. a third spring; 420. a stopper; 601. moving the base; 603. a pillar; 604. a support plate; 608. a lifting column; 609. a bottom support; 7. sealing the cavity; 701. a first piston; 702. a push rod; 703. a first spring; 704. pressing a plate; 705. sealing the pipeline; 7051. a one-way valve; 706. a cavity; 707. a second piston; 708. a support bar; 709. clamping a head; 710. a second spring; 8. a gas release valve; 9. a counterweight platform; 901. a connecting portion; 902. a box body; 903. a second motor; 904. an output shaft; 905. a winch; 906. a wire rope; 907. a limiting plate; 908. a rack; 909. a pulley block; 910. a plough shaft; 911. a drive sleeve; 912. a pin shaft; 913. a gear; 914. a second conical gear; 915. a first conical gear; 916. fixing a sleeve; 917. a connecting rod; 918. a first sprocket; 919. a chain; 920. a second sprocket; 921. a plowshare; 922. a slider; 923. a chute.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1:

referring to fig. 2-7, the present embodiment discloses a heat extraction bin, which includes a cabin body and a cabin door rotatably connected to the cabin body, wherein the cabin door and the cabin body form a closed space, and the cabin body includes a steel structure frame 401; refractory bricks 403 for fixed attachment to the steel structural frame 401; a first insulation blanket 402 for covering the outside of the refractory bricks 403; the top of the cabin body is provided with a heat exchange device, a capsule type pressure container 409, a steam ascending pipe 410, a condensation descending pipe 411, a water supplementing pipe 412 and a second heat preservation felt 4091, wherein the second heat preservation felt 4091 covers the capsule type pressure container 409 to form a heat preservation surface, the lower surface of the capsule type pressure container 409 is a heat exchange surface, and saturated water is filled in the capsule type pressure container 409.

Preferably, the number N of the heat-extracting chambers 4 is determined according to the slag-coming frequency and the heat exchange time of the single heat-extracting chamber 4, and the specific calculation formula is N ═ { T1/T2} +1, wherein T1 is the time of the whole process, T2 is the heat exchange time of the single heat-extracting chamber 4, the symbol { } is rounded up, and T2 is 1h-1.5 h.

The first heat preservation felt 402 adopts rock wool or slag wool, the heat conductivity coefficient of the refractory brick 403 is less than 1.5, and the refractory brick 403 adopts high-alumina brick or corundum brick.

When the heat taking cabin 4 is used, the slag pot 101 filled with the molten steel slag enters the heat taking cabin 4 through the steel slag transportation device 6, and heat is taken by utilizing the heat exchange device after the cabin door is closed; the capsule type pressure container 409 exchanges heat with the molten steel slag; saturated water in the capsule-type pressure container 409 becomes pressurized steam, the valve is opened after the steam pressure reaches the threshold value of the electric regulating valve on the steam ascending pipe 410, and the threshold value of the electric regulating valve is determined according to the pressure grade of the capsule-type pressure container 409; then pressurized steam enters the steam drum 3 from the steam ascending pipe 410 for steam-water separation, and condensed saturated water returns to the capsule type pressure container 409 through the condensation descending pipe 411; when the saturated water in the capsule type pressure container 409 is insufficient, the deaerated water is supplemented through the water supplementing pipe 412, and finally the balance and circulation of the working medium are realized; the heat exchange device absorbs the radiation heat of the molten steel slag, converts the radiation heat into pressure steam and outputs the pressure steam, thereby achieving the purpose of heat extraction.

Example 2:

referring to fig. 2-7, the embodiment discloses a molten steel slag heat recovery device based on embodiment 2, wherein the recovery device includes a movable base 601; the slag pot 101 is movably connected above the movable base 601; the top of the movable base 601 is fixedly connected with a supporting plate 604 through a support 603, the supporting plate 604 is connected with a lifting column 608 in a sliding manner, a driving part is arranged in the heat taking bin, the upper end of the lifting column 608 is fixed with the slag pot 101, the lower end of the lifting column 608 is connected with the output end of the driving part, and the driving part is used for driving the lifting column 608 to lift on the supporting plate 604.

Referring to fig. 2 to 7, the present embodiment is substantially the same as embodiment 3, further, the driving portion includes a first motor 404 fixedly connected to an outer wall of the heat collecting bin, an output end of the first motor 404 is fixedly connected with a rotating shaft 405, a cam 406 is fixedly connected to the rotating shaft 405, a lower end of the lifting column 608 is attached to an outer surface of the cam 406 to slide, a supporting member for supporting the rotating shaft 405 is disposed on the movable base 601, and the supporting member includes at least one first roller 407 fixedly connected to the rotating shaft 405; at least one second roller 408 attached to and corresponding to the first roller 407; wherein, the second roller 408 is rotatably connected to the movable base 601, the upper end of the lifting column 608 is fixedly connected with a bottom support 609, one end of the bottom support 609 far away from the lifting column 608 abuts against the slag pot 101, the bottom of the support plate 604 is slidably connected with a clamping plate 414, the clamping plate 414 is provided with a through groove 415, the lifting column 608 is slidably connected in the through groove 415, the side wall of the bottom of the lifting column 608 is provided with a clamping groove 418, one end of the through groove 415 is fixedly connected with a clamping block 417 matched with the clamping groove 418, the bottom of the support plate 604 is fixedly connected with a stop 420, a third spring 419 is connected between the stop 420 and the clamping plate 414, the inner wall of the heat-taking bin is fixedly connected with a protrusion 413, the protrusion 413 abuts against the clamping plate 414, when the movable base 601 moves to the heat-taking bin 4 on the track, the rotating shaft 405 extends into between the movable base 601 and the support plate 604 and abuts against the clamping plate 414, and then the locking of the lifting column 608 is released, and after the moving base 601 reaches a preset position, the lifting column 608 is positioned above the rotating shaft 405 and attached to the outer surface of the cam 406, in order to improve the support performance of the rotating shaft 405, a second roller 408 corresponding to the first roller 407 is arranged on the moving base 601, so that the rotating shaft 405 is supported, the first motor 404 is started to drive the rotating shaft 405 to rotate, the cam 406 is driven to rotate, the lifting column 608 is moved up and down, and the slag ladle 101 is driven to ascend and descend.

Referring to fig. 2, fig. 6 and fig. 7, in order to improve the stability of the mobile base 601, the following technical means are adopted in the embodiment: the movable base 601 comprises a plurality of sealed cavities 7, a first piston 701 is hermetically and slidably connected in the sealed cavities 7, a push rod 702 is fixedly connected at the upper end of the first piston 701, a pressing plate 704 is fixedly connected at the upper end of the push rod 702, a first spring 703 is sleeved on the push rod 702, two ends of the first spring 703 are respectively abutted against the sealed cavities 7 and the pressing plate 704, a cavity 706 is arranged in the movable base 601, a second piston 707 is hermetically and slidably connected in the cavity 706, a supporting rod 708 is fixedly connected at the lower end of the second piston 707, the lower end of the supporting rod 708 penetrates through the lower wall of the movable base 601 and extends downwards, a clamping head 709 is fixedly connected at the extending end of the supporting rod 708, a second spring 710 is sleeved on the supporting rod 708, two ends of the second spring 710 are respectively abutted against the second piston 707 and the inner wall at the bottom of the cavity 706, the pressing plate 704 is abutted against, preferably, the sealing pipe 705 is provided with a check valve 7051, the cavity 706 is provided with an air release valve 8, when the cam 406 rotates, and when an end face of the cam 406, which is far away from the axial line of the rotating shaft 405, is located below the axial line of the rotating shaft 405, please refer to fig. 6, the end face abuts against the pressure plate 704, the pressure plate 704 pushes the first piston 701 to slide downward in the sealing cavity 7 through the push rod 702, the air pressure in the sealing cavity 7 is delivered into the cavity 706 through the sealing pipe 705, and then the second piston 707 is driven to slide downward in the cavity 706, so that the chuck 709 is driven to abut against the inner wall of the bottom of the heat extraction chamber 4, and an anti-slip pattern matched with the chuck 709 is arranged below the chuck 709, so that the fixing effect of the moving base 601 is achieved, the existence of the first spring 703 and the second spring 710 achieves automatic resetting of the first piston 701 and the second piston 707, which needs to be described, the embodiment further includes a, The existence of the air escape valve 8 and an air overflow valve, the existence of the check valve 7051 is to prevent that when the first piston 701 moves downwards, the direction of air flow can be ensured to enter the cavity 706, and when the first piston 701 moves upwards, external air is extracted, the existence of the air escape valve 8 is used for air escape when locking needs to be relieved, so that the second piston 707 is reset through the second spring 710, the air overflow valve is not shown in the figure, the air overflow valve mainly achieves the effect that after the cavity 706 is inflated for many times, a preset value is reached, and redundant air in the cavity 706 is automatically exhausted.

Example 3:

referring to fig. 8-11, the present embodiment discloses a slag breaking plow for processing molten steel slag based on embodiment 1, which comprises a frame; the plow shaft 910, the plow shaft 910 can go up and down on the stander; a transmission sleeve 911 is rotatably connected on the frame, and the plow shaft 910 is slidably connected in the transmission sleeve 911; the plough shaft 910 can move up and down in the transmission sleeve 911 and the transmission sleeve 911 can rotate on the frame by the power device; the novel steel slag counterweight plough further comprises a plough head 921 fixedly connected to the bottom of the plough shaft 910, when the novel steel slag counterweight plough is used, the plough shaft 910 is driven by a power device to slide up and down in the transmission sleeve 911, meanwhile, in order to change the contact position of the plough head 921 at the bottom of the plough shaft 910 and steel slag, the plough head 921 needs to rotate after being contacted with the steel slag in the slag pot 101 every time, the transmission sleeve 911 is synchronously driven by the power device to rotate on the counterweight platform 9, and the purpose that the plough head 921 uniformly impacts the surface of the steel slag is achieved. The method comprises the following specific steps:

referring to fig. 8, the rack includes a counterweight platform 9 and a box 902 fixedly connected to the top of the counterweight platform 9, a transmission sleeve 911 is rotatably connected to the counterweight platform 9, a plough shaft 910 penetrates through the counterweight platform 9, a plough head 921 is located below the counterweight platform 9, a power device is located in the box 902, the plough shaft 910, the plough head 921 and the power device are at least one group, the power device includes a second motor 903 fixedly connected to the bottom of the box 902, an output end of the second motor 903 is fixedly connected to an output shaft 904, one end of the output shaft 904 away from the second motor 903 is fixedly connected to a winch 905, a steel wire rope 906 is wound on the winch 905, the box 902 is rotatably connected to a pulley block 909, and the steel wire rope 906 bypasses the pulley block 909 and is fixed to the top of the plough; the power device also comprises a limiting plate 907 fixedly connected inside the box body 902 and a rack 908 fixedly connected on the steel wire rope 906; wherein, the rack 908 slides in conjunction with the limiting plate 907, the inside of the box 902 is rotatably connected with a pin 912, the pin 912 is sequentially and fixedly connected with a gear 913 and a bevel gear 913, the gear 913 is engaged with the rack 908, the inner wall of the box 902 is fixedly connected with a fixing sleeve 916, the fixing sleeve 916 is rotatably connected with a connecting rod 917, a synchronizing mechanism is arranged between the connecting rod 917 and the transmission sleeve 911 and the pin 912, the synchronizing mechanism is used for synchronizing rotation of the connecting rod 917 and the transmission sleeve 911, in this embodiment, the second motor 903 is a forward and reverse motor, the number of forward and reverse rotation turns of the second motor 903 can be set by a controller, after the second motor 903 is started, the winch 905 is driven to wind and unwind the steel wire rope 906, so as to realize sliding of the steel wire rope 906 on the pulley block 909, and the other end of the steel wire rope 906 pulls the plow shaft 910, wire rope 906 drives rack 908 and reciprocates, and then rack 908 and the epaxial gear 913 meshing of round pin 912 to drive the operation of connecting rod 917 through lazytongs, realize the rotation of transmission sleeve 911, lazytongs can adopt bevel gear transmission or other friction drive all can, adopts two lazytongs to realize the rotation of transmission sleeve 911 as follows:

specifically, the synchronization mechanism between the link 917 and the drive sleeve 911 comprises a first sprocket 918 fixedly attached to the bottom of the link 917; a second chain wheel 920 fixedly connected to the outer wall of the transmission sleeve 911; and a chain 919 for sleeving the first chain wheel 918 and the second chain wheel 920, wherein the synchronous mechanism between the connecting rod 917 and the pin 912 comprises a first conical gear 915 fixedly connected to the top of the connecting rod 917; and a second conical gear 914 fixedly connected to the pin 912, the first conical gear 915 and the second conical gear 914 are engaged with each other, and the rotation of the gear 913 enables the second conical gear 914 to rotate, and then the second conical gear 915 is synchronously rotated with the first conical gear 915 engaged with the second conical gear, so that the connecting rod 917 is driven to rotate in the fixing sleeve 916, and further the first chain wheel 918 at the bottom of the connecting rod 917 is driven to rotate, and then the first chain wheel 918 drives the second chain wheel 920 on the outer wall of the transmission sleeve 911 to rotate through a chain 919, after the second motor 903 is reversely rotated, the plow shaft 910 and the plow head 921 impact steel slag under the self-weight state, the slag shell on the surface of the hot steel slag is knocked through the plow head 921, and the plow head 921 is made of heat-resistant steel.

The transmission sleeve 911 is rotatably connected to the counterweight platform 9 through a bearing, the inner wall of the transmission sleeve 911 is fixedly connected with a sliding block 922, the plough shaft 910 is provided with a sliding groove 923, the sliding block 922 is slidably connected in the sliding groove 923, the bottom of the counterweight platform 9 is fixedly connected with a connecting part 901, the plow head 921 is kept balanced at a certain height above the slag pot 101 through the balance weight platform 9, the plow head 921 descends through a power device to knock a slag shell on the surface of hot steel slag, the plow head 921 needs to adjust the rotation angle and the knocking frequency according to the diameter of the slag pot 101, the specific operation process is that the plow head 921 descends to knock the slag shell and then ascends, descends again to knock the slag shell and then ascends after rotating for a certain angle, the operation is repeated until the heat exchange process is finished, the angle ranges from 30 degrees to 90 degrees, and the angle is determined according to the diameter of the slag pot 101.

The method for utilizing the waste heat of the steel slag comprises the following steps: s1: pouring hot steel slag into a slag tank 101, entering a heat taking cabin 4 through a steel slag conveying device 6 through a rail, and taking heat by using a heat exchange device; s2: knocking the surface of hot steel slag in the slag tank 101 through the slag breaking plough assembly to release the radiant heat of the hot steel slag, and converting the radiant heat of the hot steel slag into pressurized steam for output by the heat exchange device; s3: pressurized steam enters the steam drum 3 to carry out steam-water separation; s4: after steam-water separation, the steam is merged into a steam pipe network of a steel mill or is utilized on site, and saturated water returns to the heat exchange device to participate in working medium circulation again; s5: repeating the steps S1-S4 on the plurality of slag pots 101 to finish the heat extraction process; s6: the cabin door is opened, the cooled hot steel slag leaves the heat taking cabin 4 in the slag pot 101 through the steel slag transportation device 6 through the rail, and the slag pot 101 is transported to the rolling crusher 2 by the travelling crane 5 for subsequent treatment; s7: and repeating the step S6 on the plurality of slag pots 101 to realize the process cycle.

The invention has the advantages that the method and the technology realize the effective utilization of the radiation heat of the molten steel slag, and has important significance for reducing the comprehensive energy consumption of iron and steel enterprises.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims (10)

1. The heat taking bin comprises a bin body and a bin door, wherein the bin door is rotatably connected to the bin body, and the bin door and the bin body can form a closed space

A steel structural frame (401);

the refractory bricks (403) are fixedly linked to the steel structure frame (401);

a first heat-insulating felt (402) for covering the outside of the refractory bricks (403);

the top of the cabin body is provided with a heat exchange device, the heat exchange device comprises a capsule type pressure container (409), a steam ascending pipe (410), a condensation descending pipe (411), a water supplementing pipe (412) and a second heat preservation felt (4091), the second heat preservation felt (4091) covers the capsule type pressure container (409) to form a heat preservation surface, the lower surface of the capsule type pressure container (409) is a heat exchange surface, and saturated water is filled in the capsule type pressure container (409).

2. The heat extraction bin as claimed in claim 1, wherein the number N of the heat extraction bins (4) is determined by the frequency of the incoming slag and the heat exchange time of the single heat extraction bin (4), and the specific calculation formula is N ═ T1/T2} +1, where T1 is the time of the whole process, T2 is the heat exchange time of the single heat extraction bin (4), the symbol { } is rounded up, and T2 should be in the range of 1h-1.5 h.

3. The heat extraction bin according to claim 1, wherein the first heat preservation felt (402) and the second heat preservation felt (4091) are made of rock wool or slag wool, the heat conductivity of the refractory bricks (403) is less than 1.5, and the refractory bricks (403) are made of high alumina bricks or corundum bricks.

4. A molten steel slag heat recovery device comprising the heat extraction bin of any one of claims 1 to 3, characterized in that: the recovery device comprises

A mobile base (601); and

the slag pot (101) is movably connected above the movable base (601);

wherein, pillar (603) fixed connection backup pad (604) are passed through to removal base (601) top, sliding connection has lift post (608) on backup pad (604), be equipped with the drive division in getting hot storehouse, lift post (608) upper end with slag ladle (101) are fixed, the lower extreme with the output of drive division is connected, the drive division is used for the drive lift post (608) go up and down on backup pad (604).

5. The molten steel slag heat recovery device according to claim 4, wherein the driving part comprises a first motor (404) fixedly connected to the outer wall of the heat extraction bin, the output end of the first motor (404) is fixedly connected with a rotating shaft (405), a cam (406) is fixedly connected to the rotating shaft (405), the lower end of the lifting column (608) is attached to the outer surface of the cam (406) to slide, and a supporting part for supporting the rotating shaft (405) is arranged on the movable base (601).

6. The molten steel slag heat recovery device according to claim 5, wherein the support member comprises

At least one first roller (407) fixedly connected to the rotating shaft (405);

at least one second roller (408) corresponding to the first roller (407);

wherein, the second roller (408) is rotatably connected to the movable base (601).

7. The molten steel slag heat recovery device according to claim 5 or 6, wherein the movable base (601) comprises a plurality of seal cavities (7), a first piston (701) is hermetically and slidably connected in the plurality of seal cavities (7), a push rod (702) is fixedly connected to the upper end of the first piston (701), a pressing plate (704) is fixedly connected to the upper end of the push rod (702), a first spring (703) is sleeved on the push rod (702), two ends of the first spring (703) respectively abut against the seal cavities (7) and the pressing plate (704), a cavity (706) is arranged in the movable base (601), a second piston (707) is hermetically and slidably connected in the cavity (706), a support rod (708) is fixedly connected to the lower end of the second piston (707), and the lower end of the support rod (708) passes through the lower wall of the movable base (601) and extends downwards, and the extension end of the support rod (708) is fixedly connected with a clamping head (709), the support rod (708) is sleeved with a second spring (710), two ends of the second spring (710) are respectively abutted to a second piston (707) and the inner wall of the bottom of the cavity (706), the pressing plate (704) is abutted to the outer surface of the cam (406), and the sealing cavity (7) is communicated with the cavity (706) through a sealing pipeline (705).

8. The apparatus for recovering heat from molten steel slag according to claim 7, wherein said sealed conduit (705) is provided with a check valve (7051), and said cavity (706) is provided with a release valve (8).

9. The apparatus for recovering heat from molten steel slag according to claim 4, wherein a bottom support (609) is fixedly connected to the upper end of the lifting column (608), and one end of the bottom support (609) far away from the lifting column (608) abuts against the slag pot (101).

10. The molten steel slag heat recovery device according to claim 4, wherein a clamping plate (414) is slidably connected to the bottom of the support plate (604), a through groove (415) is formed in the clamping plate (414), the lifting column (608) is slidably connected in the through groove (415), a clamping groove (418) is formed in the side wall of the bottom of the lifting column (608), a clamping block (417) matched with the clamping groove (418) is fixedly connected to one end of the through groove (415), a stop block (420) is fixedly connected to the bottom of the support plate (604), a third spring (419) is connected between the stop block (420) and the clamping plate (414), a protrusion (413) is fixedly connected to the inner wall of the heat extraction bin, and the protrusion (413) abuts against the clamping plate (414).

Images