CN211695090U

CN211695090U - Heating system utilizing waste heat of blast furnace slag flushing water

Info

Publication number: CN211695090U
Application number: CN202020121087.9U
Authority: CN
Inventors: 苏文亮; 杜征文; 李海亮; 午全保; 李红林
Original assignee: Shanxi Gaoyi Steel Co ltd
Current assignee: Shanxi Gaoyi Steel Co ltd
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-10-16
Anticipated expiration: 2030-01-19

Abstract

The utility model discloses a blast furnace slag flushing water waste heat heating system relates to iron works technical field, including the blast furnace, the surface of blast furnace is pegged graft and is had the pipe of slagging tap, the one end of the pipe of slagging tap is pegged graft in the inside of setting tank, the opposite side of setting tank is pegged graft and is had the inlet tube, the other end fixed mounting of inlet tube has the storage water tank. This blast furnace slag flushing water waste heat heating system, cooperation setting through movable plate and positioning spring, in the in-process of using when the weight of impurity is greater than positioning spring's holding power, the filter can be rotatory around the rotation axis, impurity can flow automatically, thereby the effect of avoiding blockking up the pipeline has been played, convenient to use's purpose has been reached, cooperation setting through second slider and baffle, in the in-process of using can seal the storage water tank through the baffle when the filter is rotatory, thereby the effect that reduces the heat loss of storage water tank has been played, the purpose that has improved slag flushing water utilization ratio has been reached.

Description

Heating system utilizing waste heat of blast furnace slag flushing water

Technical Field

The utility model relates to the technical field of iron works, in particular to a heating system utilizing waste heat of blast furnace slag flushing water.

Background

The granulated slag refers to slag of an iron-making blast furnace. It is melted at high temperature and cooled rapidly with water to form a granulated foam which is milky white, light, crisp, porous and easily ground into fine powder. It is a soft material for foamed silicate building products, slag sound-absorbing bricks, heat-insulating layers and water-absorbing layers. The granulated slag is formed by rapidly cooling the blast furnace slag in a molten state in water, and mainly comprises two modes of slag pool water quenching and stokehole water quenching. The water granulated slag is used as a building material for producing cement and concrete, and can be used as a high-quality cement raw material under the action of excitants such as cement clinker, lime, gypsum and the like due to potential hydraulic gelation property, so that the water granulated slag can be prepared into the following components: portland slag cement, gypsum slag cement, lime slag cement, slag brick, slag concrete, etc. can also be used as a raw material for producing environment-friendly cement bricks. The blast furnace is developed to be large-scale, the slag quantity is large, the water consumption is also large, and a circulating water supply system is required to be arranged as far as possible. The circulating water supply system is generally considered to be provided with precipitation filtration, cooling and pressurization facilities. Without cooling, a number of problems arise. If the water temperature is high, a large amount of foam slag, slag wool and a large amount of steam are generated during slag flushing, which is unfavorable for grain slag conveying, slag precipitation and slag filter operation; and the working environment is poor; the water temperature high water pump can generate cavitation, the output of the pump is reduced, and the service life of the pump is influenced; the device is easy to cause personal accidents, the device is easy to damage and the maintenance is difficult. The slag flushing water pressure is high, slag wool is easy to generate during slag flushing, the slag wool is not easy to precipitate and remove, and a filter layer is easy to block after entering the slag filter, so that the capacity of the filter is influenced. According to the production experience, the pressure generally used is preferably 0.12 to 0.15 MPa. The water granulated slag treatment method generally comprises 4 modes of precipitation filtration, drum filtration and water-washing slag by a drawing method.

Among the prior art, can utilize the waste heat of blast furnace slag flushing water to heat usually, prevent to cause the waste of resource, nevertheless because the slag flushing water contains a large amount of impurity and arouses the pipeline jam easily, inconvenient the washing in the inside of pipeline has increased staff's work load moreover.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a blast furnace slag flushing water waste heat heating system, which solves the problem of the prior art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a heating system using waste heat of blast furnace slag washing water comprises a blast furnace, wherein a slag discharging pipe is inserted on the outer surface of the blast furnace, one end of the slag discharging pipe is inserted in the settling tank, the other side of the settling tank is inserted with the water inlet pipe, the other end of the water inlet pipe is fixedly provided with a water storage tank, one side of the water storage tank is provided with an installation groove, a fixed seat is fixedly arranged in the mounting groove, a positioning spring is arranged on the inner bottom wall of the fixed seat, a moving plate is arranged at one end of the positioning spring, sliding blocks are welded at two sides of the moving plate, the outer surface of the sliding block is clamped in a sliding groove matched with the sliding block, a moving block is arranged above the moving plate, one side welding of movable block is at the surface of filter, the equal fixed mounting in both sides of filter has the rotation axis, the one end of rotation axis is pegged graft at the inner wall of storage water tank.

Optionally, a baffle is arranged on the upper surface of the moving block, second sliding blocks are welded to two sides of the baffle, and the outer surfaces of the second sliding blocks are clamped inside second sliding grooves matched with the second sliding blocks.

Optionally, the inside wall fixed mounting of storage water tank has the fixed block, the upper surface of fixed block is provided with the filter, the inside wall fixed mounting of filter top storage water tank has the locating piece.

Optionally, a water pump support is fixedly mounted on the inner bottom wall of the water storage tank, a water pump is fixedly mounted on the upper surface of the water pump support, a water outlet pipe is inserted into one side of the water pump, the water outlet pipe penetrates through the water storage tank and is fixedly connected with the loop pipe, and the radiating fins are sleeved on the outer surface of the loop pipe.

Optionally, a control valve is arranged inside the water outlet pipe, a drain pipe is fixedly mounted at one end of the return pipe, and the control valve is arranged inside the drain pipe.

Optionally, the upper surface of the settling tank is in threaded connection with the upper cover through a bolt, a discharge hole is formed in the lower portion of the settling tank, and a valve is arranged inside the discharge hole.

(III) advantageous effects

The utility model provides a blast furnace slag flushing water waste heat heating system possesses following beneficial effect:

1. this blast furnace slag flushing water waste heat heating system, through the setting of filter, make this blast furnace slag flushing water waste heat heating system possess and can carry out secondary filter's effect to impurity, set up through the cooperation of movable plate and positioning spring, when the weight of impurity is greater than positioning spring's holding power at the in-process that uses, the filter can be rotatory around the rotation axis, and impurity can flow automatically to the effect of avoiding blockking up the pipeline has been played, convenient to use's purpose has been reached.

2. This blast furnace slag flushing water waste heat heating system, through the setting of locating piece, make this blast furnace slag flushing water waste heat heating system possess the effect that can restrict filter rotation angle, through the cooperation setting of second slider and baffle, can seal the storage water tank through the baffle when the filter is rotatory in the in-process that uses to play the effect that reduces storage water tank heat and run off, reached the purpose that improves slag flushing water utilization ratio.

Drawings

FIG. 1 is a schematic view of the cross-sectional structure of the present invention;

FIG. 2 is a schematic view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the structure of the utility model at B in FIG. 1;

fig. 4 is a schematic perspective view of the filter plate of the present invention.

In the figure: 1. a blast furnace; 2. a slag pipe; 3. a settling tank; 4. a water inlet pipe; 5. a water storage tank; 6. mounting grooves; 7. a fixed seat; 8. a positioning spring; 9. moving the plate; 10. a slider; 11. a discharge port; 12. a chute; 13. a moving block; 14. a filter plate; 15. a rotating shaft; 16. a baffle plate; 17. a second slider; 18. a second chute; 19. a fixed block; 20. positioning blocks; 21. a water pump bracket; 22. a water pump; 23. a water outlet pipe; 24. a pipe is returned; 25. a heat sink; 26. a drain pipe; 27. an upper cover; 28. and (4) a filter screen.

Detailed Description

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

Referring to fig. 1 to 4, the present invention provides a technical solution: a blast furnace slag flushing water waste heat heating system comprises a blast furnace 1, a slag discharging pipe 2 is inserted on the outer surface of the blast furnace 1, one end of the slag discharging pipe 2 is inserted inside a settling tank 3, the upper surface of the settling tank 3 is in threaded connection with an upper cover 27 through a bolt, a discharge port 11 is formed below the settling tank 3, a valve is arranged inside the discharge port 11, a water inlet pipe 4 is inserted on the other side of the settling tank 3, a water storage tank 5 is fixedly installed at the other end of the water inlet pipe 4, a fixing block 19 is fixedly installed on the inner side wall of the water storage tank 5, a filter plate 14 is arranged on the upper surface of the fixing block 19, a positioning block 20 is fixedly installed on the inner side wall of the water storage tank 5 above the filter plate 14, the blast furnace slag flushing water waste heat heating system has the effect of limiting the rotation angle of the filter plate 14 through the arrangement of a second sliding block 17 and a baffle plate 16, the water storage tank, thereby reducing the heat loss of the water storage tank 5 and achieving the purpose of improving the utilization rate of the flushing cinder water, a water pump bracket 21 is fixedly arranged on the inner bottom wall of the water storage tank 5, a water pump 22 is fixedly arranged on the upper surface of the water pump bracket 21, a water outlet pipe 23 is inserted into one side of the water pump 22, a control valve is arranged inside the water outlet pipe 23, a drain pipe 26 is fixedly arranged at one end of a pipe 24, a control valve is arranged inside the drain pipe 26, the water outlet pipe 23 penetrates through the water storage tank 5 and is fixedly connected with the pipe 24, a radiating fin 25 is sleeved on the outer surface of the pipe 24, a mounting groove 6 is arranged on one side of the water storage tank 5, a fixed seat 7 is fixedly arranged inside the mounting groove 6, a positioning spring 8 is arranged on the inner bottom wall of the fixed seat 7, a movable plate 9 is arranged at one end of the positioning spring 8, a moving block 13 is arranged above the moving plate 9, a baffle 16 is arranged on the upper surface of the moving block 13, second sliding blocks 17 are welded on two sides of the baffle 16, the outer surfaces of the second sliding blocks 17 are clamped in second sliding grooves 18 matched with the second sliding blocks, one side of the moving block 13 is welded on the outer surface of the filter plate 14, through the arrangement of the filter plate 14, the heating system using the waste heat of the blast furnace slag flushing water has the effect of secondary filtration of impurities, and through the matching arrangement of the movable plate 9 and the positioning spring 8, when the weight of the foreign matter is greater than the supporting force of the positioning spring 8 during use, the filter plate 14 rotates about the rotation shaft 15, the foreign matter automatically flows out, thereby the effect of avoiding blockking up the pipeline has been played, has reached convenient to use's purpose, and the equal fixed mounting in both sides of filter 14 has rotation axis 15, and the one end of rotation axis 15 is pegged graft at the inner wall of storage water tank 5.

During the use, the inside that the sluicing water entered into settling tank 3 from blast furnace 1 through slag pipe 2, some impurity can deposit in settling tank 3's inside, then the sluicing water enters into the inside of storage water tank 5 from inlet tube 4 through filter screen 28, filter screen 28 can block some impurity, the inside that the sluicing water enters into storage water tank 5 is through secondary filter, water after the filtration enters into the inside of returning the pipe 24 through water pump 22, its heat is utilized under the effect of fin 25, impurity on filter 14 can be more and more, when the weight of impurity is greater than positioning spring 8's holding power, filter 14 can be rotatory around rotation axis 15, because the effect of gravity, impurity can flow from the upper surface of movable block 13.

The utility model discloses a theory of operation and beneficial effect: this blast furnace slag flushing water waste heat heating system, setting through filter 14 makes this blast furnace slag flushing water waste heat heating system possess and can carry out secondary filter's effect to impurity, set up through movable plate 9 and positioning spring 8's cooperation, when the weight of impurity is greater than positioning spring 8's holding power at the in-process that uses, filter 14 can be rotatory around rotation axis 15, impurity can automatic outflow, thereby played the effect of avoiding blockking up the pipeline, convenient to use's purpose has been reached. Through the setting of locating piece 20, make this blast furnace slag washing water waste heat heating system possess the effect that can restrict filter 14 rotation angle, set up through the cooperation of second slider 17 and baffle 16, can seal storage water tank 5 through baffle 16 when filter 14 is rotatory in the in-process of using to play the effect that reduces 5 heat losses of storage water tank, reached the purpose that has improved slag washing water utilization ratio.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a blast furnace slag washing water waste heat heating system, includes blast furnace (1), its characterized in that: the outer surface of the blast furnace (1) is spliced with a slag discharging pipe (2), one end of the slag discharging pipe (2) is spliced in the settling tank (3), the other side of the settling tank (3) is spliced with a water inlet pipe (4), the other end of the water inlet pipe (4) is fixedly provided with a water storage tank (5), one side of the water storage tank (5) is provided with a mounting groove (6), the inside of the mounting groove (6) is fixedly provided with a fixing seat (7), the inner bottom wall of the fixing seat (7) is provided with a positioning spring (8), one end of the positioning spring (8) is provided with a movable plate (9), two sides of the movable plate (9) are welded with sliding blocks (10), the outer surface of each sliding block (10) is clamped in a sliding groove (12) matched with the sliding block, a movable block (13) is arranged above the movable plate (9), one side of each movable block (13), the equal fixed mounting in both sides of filter (14) has rotation axis (15), the inner wall at storage water tank (5) is pegged graft to the one end of rotation axis (15).

2. The blast furnace slag washing water waste heat heating system according to claim 1, characterized in that: the upper surface of the moving block (13) is provided with a baffle (16), second sliding blocks (17) are welded on two sides of the baffle (16), and the outer surfaces of the second sliding blocks (17) are clamped inside second sliding grooves (18) matched with the second sliding blocks.

3. The blast furnace slag washing water waste heat heating system according to claim 1, characterized in that: the inside wall fixed mounting of storage water tank (5) has fixed block (19), the upper surface of fixed block (19) is provided with filter (14), the inside wall fixed mounting of filter (14) top storage water tank (5) has locating piece (20).

4. The blast furnace slag washing water waste heat heating system according to claim 1, characterized in that: the utility model discloses a water storage tank, including storage water tank (5), inner diapire fixed mounting have water pump support (21), the last fixed surface of water pump support (21) installs water pump (22), one side of water pump (22) is pegged graft and is had outlet pipe (23), outlet pipe (23) run through storage water tank (5) and time shape pipe (24) fixed connection, the surface of time shape pipe (24) has cup jointed fin (25).

5. The blast furnace slag washing water waste heat heating system according to claim 4, characterized in that: the water outlet pipe (23) is internally provided with a control valve, one end of the return pipe (24) is fixedly provided with a drain pipe (26), and the drain pipe (26) is internally provided with the control valve.

6. The blast furnace slag washing water waste heat heating system according to claim 1, characterized in that: the upper surface of the settling tank (3) is in threaded connection with the upper cover (27) through a bolt, a discharge hole (11) is formed in the lower portion of the settling tank (3), and a valve is arranged inside the discharge hole (11).