CN219913015U - Slag waste heat steam boiler - Google Patents

Abstract

The utility model relates to a steel slag waste heat steam boiler, which belongs to the technical field of steel slag recycling and comprises a boiler body, wherein a boiler barrel is arranged in the boiler body, the boiler barrel is transversely arranged at the top end of the boiler body, a water supply pipe is fixedly connected to one side of the boiler barrel, an exhaust pipe is arranged above the boiler barrel, the bottom end of the exhaust pipe is fixedly connected and communicated with the boiler barrel, a lower header and an upper header are arranged below the boiler barrel, both the lower header and the upper header are fixedly connected with the inner wall of the boiler body, the upper header is arranged between the boiler barrel and the lower header, a down pipe is fixedly arranged between the boiler barrel and the lower header, the down pipe is communicated with both the lower header and the upper header, a heating pipe is fixedly arranged between the lower header and the upper header, the heating pipe is communicated with both the upper header, the eduction pipe is fixedly arranged between the boiler barrel and the upper header, steel slag is arranged at the bottom end of the boiler body, and the heating pipe is arranged above the steel slag.

Description

Slag waste heat steam boiler

Technical Field

The utility model relates to the technical field of steel slag recycling, in particular to a steel slag waste heat steam boiler.

Background

The steel slag is an industrial solid waste, is slag discharged from steel making, is divided into converter slag, flat slag, electric furnace slag and the like according to furnace types, and mainly consists of calcium, iron, silicon, magnesium, a small amount of oxides of aluminum, manganese, phosphorus and the like. The yield of crude steel is increased nowadays, the effective utilization rate of steel slag is only 10%, most of steel slag is discarded as waste, and the steel slag occupies a good land and pollutes the environment.

In recent years, steel slag is not considered as waste slag any more, and the high-temperature steel slag is subjected to cooling treatment by adopting methods such as open-air deslagging water quenching, shallow disc hot water quenching and the like, and the treated steel slag is reused as a raw material for manufacturing road construction materials, building materials or agricultural fertilizers.

In view of the above related art, the inventors consider that the waste heat of the steel slag is not utilized, and thus there is a defect of resource waste.

Disclosure of Invention

In order to reduce the waste of resources, the utility model provides a steel slag waste heat steam boiler.

The utility model provides a steel slag waste heat steam boiler which adopts the following technical scheme:

the utility model provides a slag waste heat steam boiler, includes the pot body, the pot body is internally provided with the drum, the drum transversely is arranged in pot body top and the internal wall fixed connection of pot, drum one side fixedly connected with delivery pipe, delivery pipe and drum are linked together, the delivery pipe is kept away from drum one end and is run through pot body lateral wall and stretch to the pot body outside, the drum top is provided with the blast pipe, blast pipe bottom and drum fixed connection and be linked together, blast pipe is kept away from drum one end and is run through pot body lateral wall and stretch to the pot body outside, the drum below is provided with lower header and upper header, both lower header and upper header are with pot body inner wall fixed connection, and upper header is in between drum and the lower header, set firmly the downcomer between drum and lower header, the downcomer is linked together with both, set firmly the heating pipe between lower header and upper header, set firmly the extraction pipe between drum and upper header, extraction pipe and both are linked together, extraction and drum hookup location are higher than downcomer and drum hookup location, the slag is in pot body bottom, the heating pipe is in the top of slag.

Through adopting above-mentioned technical scheme, supply water in to the drum from the delivery pipe, water flows to the lower header from the downcomer after entering into the drum, because the drum is higher than last header, after collecting water down in the header, water flows to the upper header along the heating pipe in, the in-process that rivers flow in the heating pipe simultaneously, the heat energy of slag release heats the rivers, steam is generated after hot water gets into last header, steam gets into in the drum through the extraction tube, steam is carried along the blast pipe outside after getting into the drum, and utilize steam, steam that the production user can utilize through absorbing the slag waste heat, thereby the waste of resource has been reduced.

Optionally, the pan body is internal fixedly connected with diaphragm type wall, and the diaphragm type wall is located lower collection case department, and the diaphragm type wall middle part runs through and has seted up logical groove, and the heating pipe is kept away from lower collection case one end and stretches into in the diaphragm type wall to wear out from leading to the inslot.

Through adopting above-mentioned technical scheme, the diaphragm type wall absorbs the heat, and the diaphragm type wall is heating the heating pipe, and the setting of diaphragm type wall has increased the heated area of heating pipe, has improved the rate of recovery to the slag waste heat.

Optionally, the mouth of getting a mouthful has been run through to pot body one side, is provided with the transport vechicle that is used for loading the slag in the pot body, and the transport vechicle can be followed and traded mouthful and pass.

Through adopting above-mentioned technical scheme, the slag is loaded in the transport vechicle, and the transport vechicle drives the slag and removes towards the pot body direction, removes into the pot body from the mouth of getting, when needing to change the slag, removes the transport vechicle outside the pot body, clears up the change to the slag, and the setting of transport vechicle provides convenience for changing the slag.

Optionally, the pot body is hinged with a sealing door at the exchange port.

By adopting the technical scheme, when the transport vehicle is positioned in the pot body, the sealing door is closed, and the heat diffusion to the outside is reduced by the sealing door, so that the utilization rate of the residual heat of the steel slag is improved.

Optionally, be provided with two screws in the pot body, be parallel to each other between the screw rod, and two screws are in the relative both sides of the internal diapire of pot respectively, the mouth one side inner wall rotation connection is traded in the mouth one end and the pot body is offered to the pot body, the screw rod is kept away from and is traded mouthful one end and runs through the pot body and relatively trades mouthful one side inner wall and stretch to the pot body outside, screw rod and the pot body rotate and connect, two screws are in the external one end of pot and all fixedly connected with belt pulley, belt pulley department is provided with the belt, the belt sleeve is in the outside of two belt pulleys and the equal meshing of belt pulley, the pot body is provided with the motor, one of them fixed connection in motor output shaft and the two belt pulleys, be provided with the push pedal in the pot body, the screw rod runs through push pedal and push pedal threaded connection, push pedal and transport vechicle lateral wall fixed connection.

Through adopting above-mentioned technical scheme, the starter motor, motor drive one of them rotation of two belt pulleys, belt pulley drive belt pulley rotation of keeping away from the motor, simultaneously two belt pulleys drive screw rod rotation, the screw rod drives the push pedal and removes towards the transport vechicle direction, push pedal and transport vechicle butt to promote the transport vechicle towards changing the direction and remove, release the pot body with the transport vechicle, need not the manual pot body that fills of staff and remove out the transport vechicle, thereby provide convenience for staff's work.

Optionally, push pedal top is provided with branch, branch bottom and push pedal fixed connection, and branch upper end is along orientation change mouthful direction fixedly connected with push rod, and branch one end is kept away from to the push rod runs through the pot body lateral wall and stretches to outside the pot body, push rod and the pot body sliding connection, and the lateral wall articulates with the pot body on the closure door, and the closure door bottom articulates there is the connecting rod, and the connecting rod is kept away from closure door one end and push rod is in the external one end of pot and articulates.

Through adopting above-mentioned technical scheme, the push pedal moves towards the in-process that seals the door direction, drive branch and remove, branch drives the push rod and rotates, the push rod drives the connecting rod and rotates towards the external direction of pot, the bull stick drives and seals the door and open towards the external direction of pot, after the completion is changed to the slag, the push pedal moves towards the pot, drive branch removes, branch drive push rod removes, the push rod drives the connecting rod and removes, it seals to get the mouth to rotate towards the internal direction of pot under the thrust that receives self gravity and connecting rod, need not the manual switch of staff and seals the door, thereby it is convenient to work for the staff.

Optionally, the outer lateral wall of pot body fixedly connected with heat preservation.

By adopting the technical scheme, the heat insulation layer reduces the conduction of heat in the pot body to the outside, thereby improving the utilization rate of the residual heat of the steel slag.

Optionally, a protective layer is fixedly connected with one side of the heat preservation layer, which is away from the pot body.

Through adopting above-mentioned technical scheme, the protective layer plays the guard action to the heat preservation, makes the heat preservation not fragile.

Optionally, the lower header is fixedly connected with a drain pipe, and one end of the drain pipe, which is far away from the lower header, penetrates through the side wall of the pot body and extends out of the pot body.

By adopting the technical scheme, when the lower header is cleaned, sewage in the lower header can be discharged out of the water collecting tank through the sewage discharging pipe, so that convenience is brought to cleaning the lower header.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the water in the heating pipe is heated by the waste heat of the steel slag, the heated water enters the upper header to generate steam, the steam enters the boiler barrel along the eduction pipe, and after entering the boiler barrel, the steam is conveyed to the outside through the exhaust pipe and utilized, and the steam capable of being utilized is produced by the waste heat of the steel slag, so that the waste of resources is reduced;

2. the film wall increases the heating area of the heating pipe and improves the recovery rate of the waste heat of the steel slag;

3. the screw rod drives the push plate to move, and the push plate drives the transport vechicle to pass in and out the pot body, need not the manual transport vechicle that removes of staff to it is convenient to provide for staff's work.

Drawings

FIG. 1 is a schematic diagram of a steel slag waste heat steam boiler according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view showing the internal structure of the pot body in the embodiment of the present utility model;

FIG. 3 is an enlarged schematic view of a portion A of FIG. 2;

figure 4 is a cross-sectional view of an embodiment of the present utility model showing the structure at the push plate.

In the figure, 1, a pot body; 11. a lower header; 12. a header is arranged; 13. a down pipe; 14. heating pipes; 15. an eduction tube; 16. a retrieval port; 17. closing the door; 18. a track; 2. a drum; 21. a water supply pipe; 22. an exhaust pipe; 23. a steam-water separator; 3. a membrane wall; 31. a through groove; 4. a transport vehicle; 5. a screw; 51. a belt pulley; 52. a belt; 53. a motor; 6. a push plate; 61. a support rod; 62. a push rod; 63. a connecting rod; 7. a heat preservation layer; 8. a protective layer; 9. and a blow-down pipe.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-4.

The embodiment of the utility model discloses a steel slag waste heat steam boiler.

Referring to fig. 1, a steel slag waste heat steam boiler comprises a boiler body 1, wherein a exchanging opening 16 is formed in one side of the boiler body 1, a sealing door 17 is arranged at the exchanging opening 16 of the boiler body 1, and the upper end of the sealing door 17 is hinged with the boiler body 1. The sealing door 17 is opened to replace steel slag in the boiler, and after the replacement is completed, the sealing door 17 is closed, so that heat in the boiler body 1 is not easy to diffuse to the outside.

Referring to fig. 1 and 2, a boiler barrel 2 is arranged in a boiler body 1, the boiler barrel 2 is transversely arranged at the top end of the boiler body 1 along the length direction of the boiler body 1, the boiler barrel 2 is fixedly connected with the inner wall of the boiler body 1, one end of the water supply pipe 21, which is far away from the boiler barrel 2, penetrates through the side wall of the boiler body 1 and extends out of the boiler body 1, a lower header 11 and an upper header 12 are arranged below the boiler body 1, the upper header 12 is arranged between the boiler barrel 2 and the lower header 11, the upper header 12 and the lower header 11 are both provided with two, the upper header 12 and the lower header 11 are both parallel to the boiler barrel 2, the opposite ends of the upper header 12 and the lower header 11 are respectively fixedly connected with the inner walls of the opposite sides of the boiler body 1, a descending pipe 13 is fixedly arranged between the boiler barrel 2 and the lower header 11, the downcomer 13 is communicated with the two, the membrane wall 3 is fixedly connected in the pot body 1, the membrane wall 3 is positioned at the lower header 11, a through groove 31 is formed in the middle of the membrane wall 3 in a penetrating manner along the length direction of the pot body 1, a plurality of heating pipes 14 are arranged on one side of the upper header 12, one ends of the heating pipes 14 are fixedly connected with the upper header 12, the plurality of heating pipes 14 are sequentially arranged along the length direction of the upper header 12, one ends of the heating pipes 14, which are far away from the upper header 12, extend into the through groove 31, penetrate through the side wall of the through groove 31, extend from the membrane wall 3 to the lower header 11 and the lower header 11 to be fixedly connected, an eduction tube 15 is fixedly arranged between the pot drum 2 and the upper header 12, the connecting position of the eduction tube 15 and the pot drum 2 is higher than the connecting position of the downcomer 13 and the pot drum 2, and steel slag is positioned below the membrane wall 3.

An exhaust pipe is arranged above the boiler body 1, one end of the exhaust pipe penetrates through the side wall of the boiler body 1 and is fixedly connected with the boiler barrel 2, the exhaust pipe is communicated with the boiler barrel 2, a steam-water separator 23 used for separating steam from water is fixedly connected in the boiler barrel 2, and the air outlet end of the steam-water separator 23 extends into the exhaust pipe 22.

Water is supplied into the boiler barrel 2 from a water supply pipe 21, water in the boiler barrel 2 enters the lower header 11 along the descending pipe 13, after the lower header 11 is full of water, the water in the lower header 11 enters the upper header 12 through the heating pipe 14, steel slag releases heat, the film wall 3 absorbs the heat, then the heating pipe 14 is heated, the water temperature in the heating pipe 14 is increased, the heating area of the heating pipe 14 is increased by the arrangement of the film wall 3, the heating speed of the water in the heating pipe 14 is accelerated, water vapor is generated after entering the upper header 12, the water vapor enters the boiler barrel 2 along the eduction pipe 15, and the water is reserved in the boiler barrel 2 through the separation effect of the steam-water separator 23, and gas is conveyed outwards from the exhaust pipe 22 for people.

Referring to fig. 1 and 2, two rails 18 are arranged at the bottom end of the pot body 1 along the length direction of the pot body 1, one end of each rail 18 is fixedly connected with the inner wall of one side, far away from the sealing door 17, of the pot body 1, one end, close to the sealing door 17, of each rail 18 extends out of the pot body 1 from the lower side of the sealing door 17, a transport vehicle 4 is arranged above the two rails 18, the transport vehicle 4 is in sliding connection with the drum in the length direction of the rails 18, steel slag is located in the transport vehicle 4, and the transport vehicle 4 is located below the membrane wall 3.

Steel slag is loaded in the transport vehicle 4, enters the pot body 1 from the exchange port 16 along the length direction of the track 18, and when the steel slag needs to be replaced, the transport vehicle 4 is moved out of the pot body 1 from the exchange port 16 to replace the steel slag in the transport vehicle 4.

Referring to fig. 1 and 3, an insulation layer 7 is fixedly connected to the outer side wall of the pot body 1, a protection layer 8 is fixedly connected to one side, away from the pot body 1, of the insulation layer 7, in the embodiment of the utility model, the insulation layer 7 is made of rock wool board, and the protection layer 8 is made of color steel plates. The heat preservation plate reduces the heat transfer in the pot body 1 to the outside, and the protective layer 8 plays a role in protecting the heat preservation layer 7, so that the heat preservation layer 7 is not easy to be damaged by collision of external objects.

Referring to fig. 2 and 4, two screws 5 are arranged at the bottom end of the pot body 1 along the length direction of the pot body 1, the two screws 5 are respectively positioned at two opposite sides of the pot body 1, a track 18 is positioned between the two screws 5, one end of each screw 5 is rotatably connected with the inner wall of one side of the pot body 1, which is close to the sealing door 17, the screw 5 is rotatably connected with the pot body 1 by penetrating through one side wall of the pot body 1, which is far away from the sealing door 17, of the sealing door 17, the two screws 5 are fixedly connected with belt pulleys 51 at one end outside the pot body 1, belts 52 are arranged at the positions of the two belt pulleys 51, the belt belts 52 are sleeved on the outer sides of the two belt pulleys 51 and meshed with the belt pulleys 51, one of the two belt pulleys 51 is fixedly connected with a motor 53, a push plate 6 is arranged at the bottom end of the pot body 1, the push plate 6 is positioned above the track 18, the push plate 6 is perpendicular to the screw 5, the two screws 5 are respectively penetrated through two opposite ends of the push plate 6, the screw 5 is in threaded connection with the push plate 6, and one side, which is close to the transport vehicle 4, is fixedly connected with the push plate 4.

The motor 53 is started, the motor 53 drives the belt pulley 51 to rotate, the belt pulley 51 drives the belt 52 to rotate, the belt 52 drives the belt pulley 51 far away from the motor 53 to rotate, meanwhile, the belt pulley 51 drives the screw 5 to rotate, the screw 5 drives the push plate 6 to rotate, the push plate 6 drives the transport vehicle 4 to move on the track 18, and a worker does not need to manually push the transport vehicle 4, so that convenience is provided for the worker to work.

Referring to fig. 1 and 2, two opposite ends of the upper surface of the push plate 6 are fixedly connected with a supporting rod 61, the length direction of the supporting rod 61 is perpendicular to the screw 5, one end of the supporting rod 61 away from the push plate 6 is fixedly connected with a push rod 62, the push rod 62 is directly above the screw 5, the push rod 62 is perpendicular to the screw 5, one end of the push rod 62 away from the supporting rod 61 penetrates through the pot body 1 to be close to one side wall of the closed door 17 and is in sliding connection with the pot body 1, two push rods 62 are positioned on two opposite sides of the closed door 17 and are positioned above the closed door 17, one end of the push rod 62 outside the pot body 1 is hinged with a connecting rod 63, and one end of the connecting rod 63 away from the push rod 62 is hinged with the side wall at the bottom end of the closed door 17.

In the process that push rod 62 moves towards the direction of closing door 17, drive branch 61 and remove, branch 61 drives the push rod 62 and removes, push rod 62 drives connecting rod 63 and removes, simultaneously connecting rod 63 drives closing door 17 and rotates towards keeping away from the direction of pot body 1, closing door 17 opens, when push pedal 6 moves towards the in-process of pot body 1, drive branch 61 and remove, branch 61 drives push rod 62 and removes, push rod 62 drives connecting rod 63 and removes, closing door 17 rotates towards the direction of pot body 1 under the thrust effect of self gravity and connecting rod 63 simultaneously, closing door 17 pipe wall, need not the manual switch closing door 17 of staff, the convenience is provided for the staff work.

Referring to fig. 1 and 2, a plurality of drain pipes 9 are fixedly connected to one side of the lower header 11, the drain pipes 9 are communicated with the lower header 11, the plurality of drain pipes 9 are sequentially arranged along the length direction of the lower header 11, and one end, away from the lower header 11, of each drain pipe 9 penetrates through the side wall of the pot body 1 and extends out of the pot body 1. When the lower header 11 is cleaned, sewage in the lower header 11 can be discharged outside the pot body 1 through the sewage discharge pipe 9, thereby providing convenience for cleaning the lower header 11.

The implementation principle of the steel slag waste heat steam boiler provided by the embodiment of the utility model is as follows: the water in the boiler drum 2 enters the lower header 11 along the descending pipe 13 through the water supply pipe 21, the lower header 11 enters the upper header 12 along the heating pipe 14 after being full of water, steel slag releases heat in the process that the water passes through the heating pipe 14, the temperature of the heating pipe 14 is increased, the heating pipe 14 increases the temperature of the water in the heating pipe 14, when the water enters the upper header 12, water vapor enters the boiler drum 2 along the eduction pipe 15, the water vapor is treated by the steam-water separator 23, the water falls into the boiler drum 2, gas is transported outwards from the exhaust pipe 22 and is utilized, and the gas which can be utilized by people is produced through the waste heat of the steel slag, so that the waste of resources is reduced.

The embodiments of the present utility model are all preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (9)

1. The utility model provides a slag waste heat steam boiler, includes the pot body (1), its characterized in that: the boiler body (1) is internally provided with a boiler barrel (2), the boiler barrel (2) is transversely arranged at the top end of the boiler body (1) and fixedly connected with the inner wall of the boiler body (1), one side of the boiler barrel (2) is fixedly connected with a water supply pipe (21), the water supply pipe (21) is communicated with the boiler barrel (2), one end of the water supply pipe (21) is far away from the boiler barrel (2) and penetrates through the side wall of the boiler body (1) to extend out of the boiler body (1), an exhaust pipe (22) is arranged above the boiler barrel (2), the bottom end of the exhaust pipe (22) is fixedly connected with the boiler barrel (2) and communicated with the boiler barrel (2), one end of the exhaust pipe (22) is far away from the boiler barrel (2) and penetrates through the side wall of the boiler body (1) to extend out of the boiler body (1), a lower header (11) and an upper header (12) are arranged below the boiler barrel (2), both the lower header (11) and the upper header (12) are fixedly connected with the inner wall of the boiler body (1), a lower header (12) are positioned between the boiler barrel (2) and the lower header (11), a descending pipe (13) is fixedly arranged between the boiler barrel (2) and the lower header (11), the lower header (13) and the lower header (14) are fixedly connected with the upper header (14) and the lower header (14), an eduction tube (15) is fixedly arranged between the boiler barrel (2) and the upper header (12), the eduction tube (15) is communicated with the boiler barrel (2), the connecting position of the eduction tube (15) and the boiler barrel (2) is higher than that of the descending tube (13) and the boiler barrel (2), steel slag is positioned at the bottom end of the boiler body (1), and a heating tube (14) is positioned above the steel slag.

2. The steel slag waste heat steam boiler according to claim 1, wherein: the utility model discloses a boiler, including a boiler body (1), a pan body (11), a heating pipe (14), a membrane wall (3) fixedly connected with in the boiler body (1), membrane wall (3) are located lower header (11) department, and logical groove (31) has been run through in membrane wall (3) middle part, and lower header (11) one end is kept away from to heating pipe (14) stretches into in membrane wall (3) to wear out from logical inslot (31).

3. The steel slag waste heat steam boiler according to claim 1, wherein: one side of the pot body (1) is provided with a trading opening (16) in a penetrating way, a transport vehicle (4) for loading steel slag is arranged in the pot body (1), and the transport vehicle (4) can penetrate through the trading opening (16).

4. A steel slag waste heat steam boiler according to claim 3, wherein: the pot body (1) is hinged with a closing door (17) at the exchange port (16).

5. A steel slag waste heat steam boiler according to claim 3, wherein: be provided with two screw rods (5) in the pot body (1), be parallel to each other between screw rod (5), and two screw rods (5) are in the relative both sides of the internal diapire of pot body (1) respectively, transport vechicle (4) are in between screw rod (5), screw rod (5) one end and pot body (1) are offered and are traded mouthful (16) one side inner wall and rotate and connect, screw rod (5) are kept away from trading mouthful (16) one end and are run through pot body (1) and keep away from trading mouthful (16) one side inner wall and stretch to outside pot body (1), screw rod (5) and pot body (1) rotate and connect, two screw rods (5) are in equal fixedly connected with belt pulley (51) of pot body (1) outer end, belt pulley (51) department is provided with belt (52), belt (52) cover is in the outside of two belt pulleys (51) and belt pulley (51) all mesh, pot body (1) are provided with motor (53) outward, one of them fixed connection in motor (53) output shaft and the two belt pulleys (51), be provided with push pedal (6) in pot body (1), push pedal (6) and run through (6) threaded connection outside push pedal (4).

6. The steel slag waste heat steam boiler of claim 5, wherein: push pedal (6) top is provided with branch (61), branch (61) bottom and push pedal (6) fixed connection, branch (61) upper end is along being directed towards trading mouthful (16) direction fixedly connected with push rod (62), branch (61) one end is kept away from in push rod (62) and is run through the pot body (1) lateral wall and stretch out to the pot body (1), push rod (62) and pot body (1) sliding connection, lateral wall and pot body (1) are articulated on closing door (17), closing door (17) bottom articulates there is connecting rod (63), closing door (17) one end and push rod (62) are in pot body (1) outer one end articulated are kept away from to connecting rod (63).

7. The steel slag waste heat steam boiler according to claim 1, wherein: the outer side wall of the pot body (1) is fixedly connected with an insulating layer (7).

8. The steel slag waste heat steam boiler of claim 7, wherein: one side of the heat preservation layer (7) away from the pot body (1) is fixedly connected with a protection layer (8).

9. The steel slag waste heat steam boiler according to claim 1, wherein: the lower header (11) is fixedly connected with a blow-down pipe (9), and one end, far away from the lower header (11), of the blow-down pipe (9) penetrates through the side wall of the pot body (1) and extends out of the pot body (1).