Granulating device for water granulated slag

Abstract

The utility model discloses a water granulated slag granulating device which comprises a granulating tower, the granulating tower is communicated with a condenser through a pipeline, and a structure that cooling liquid circularly flows along the pipeline, the granulating tower and the condenser under the action of a water pump is formed; the two filtering devices are fixed in the middle of the pipeline and are used for filtering in the flowing process of the cooling liquid; the filtering device comprises a filtering shell, a filtering element assembly and a knocking piece; the two ends of the filter shell are communicated with the pipeline, the filter element assembly is fixed in the filter shell, the opening direction corresponds to the water flow direction, and the knocking piece is fixed on the inner end wall of the filter shell and extends into the filter element assembly. According to the blast furnace slag cooling device, used liquid is cooled through the arrangement of the condenser and conveyed into the granulation tower again under the action of the water pump, blast furnace slag in the granulation tower is cooled, and water resources are saved while normal cooling of the blast furnace slag is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of water slag granulation devices, in particular to a water slag granulation device. Background Art

[0002] In the smoke exhaust process of various production units in the steel industry, the "white plume" phenomenon of high-humidity flue gas often occurs, which not only has a certain impact on the environment, aggravates the formation of haze in the air, but also causes a large amount of water vapor waste.

[0003] At present, the more advanced water-flushing slag process in China is the environmentally friendly bottom filtration method, that is: the blast furnace slag passes through the slag ditch and the water-slag flushing box, and the high-temperature molten slag is rapidly cooled and granulated in the granulation tower to become water slag. The water slag enters the slag water pool through the water slag outlet of the granulation tower for filtration.

[0004] However, the rapid cooling in the granulation tower will produce a large amount of water vapor, which will cause the internal pressure of the granulation tower to increase and form a large amount of liquid. When the water slag is discharged, a large amount of liquid will also be discharged, resulting in a waste of water resources. In this regard, we have proposed a water slag granulation device. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a water slag granulating device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A slag granulating device, comprising:

[0008] A granulation tower, wherein the granulation tower is connected to a condenser through a pipeline, so that a coolant circulates along the pipeline, the granulation tower and the condenser under the action of a water pump;

[0009] Two filtering devices, which are fixed in the middle of the pipeline and filter the coolant during its flow;

[0010] The filter device includes a filter housing, a filter core assembly, and a knocking piece; both ends of the filter housing are connected to the pipeline, the filter core assembly is fixed inside the filter housing, and the opening direction corresponds to the water flow direction, the knocking piece is fixed on the inner end wall of the filter housing and extends to the inside of the filter core assembly, and collides with the filter core assembly when the filter core assembly is restored.

[0011] Preferably, the filter housing includes a cylindrical outer shell, two sealing covers, and two sealing rings; the two sealing covers are respectively fixed at the two ends of the cylindrical outer shell, and are fixedly connected to the pipeline, so that the cylindrical outer shell is connected to the pipeline, and the two sealing rings are respectively sleeved on the outside of the two sealing covers and are in contact with the two ends of the cylindrical outer shell.

[0012] Preferably, the filter element assembly includes a fixing ring, a blocking ring, and a filter element. The fixing ring is detachably fixed to the inside of the cylindrical shell by bolts, the blocking ring is fixed to the inside of the fixing ring, and the filter element is bonded to the inside of the blocking ring and deformed under the flushing of water flow.

[0013] Preferably, the filter element assembly includes an elastic ring, an impact plate, and multiple elastic pull ropes. The elastic ring is fixed inside the blocking ring and stretched under the scouring of water flow, and the outer side of the elastic ring is provided with multiple groups of filter holes evenly distributed in a circular array. The impact plate is fixed at the opening of one end of the elastic ring away from the blocking ring. The multiple elastic pull ropes are fixed on the impact plate in a circular array and extend toward the blocking ring to be fixedly connected to the sealing cover.

[0014] Preferably, the knocking member includes a knocking ring and a plurality of extension rods, wherein the plurality of extension rods are fixed on the sealing cover in a ring array and extend into the interior of the elastic ring and are fixedly connected to the knocking ring, and the knocking ring collides when the impact plate is reset.

[0015] Preferably, the pipeline includes a first pipeline and a second pipeline, both ends of which are connected to the granulation tower and the condenser respectively, and two filtering devices are respectively fixed in the middle of the first pipeline and the second pipeline, forming a structure in which the first pipeline transports the cleaning liquid inside the granulation tower to the inside of the condenser under the action of the water pump, and the second pipeline transports the cleaning liquid inside the condenser to the inside of the granulation tower under the action of the water pump.

[0016] Preferably, a discharge pipe is fixedly installed at the bottom of the granulation tower, and the top of the granulation tower is detachably fixed.

[0017] The beneficial effects of the utility model are:

[0018] 1. The used liquid is cooled by the setting of the condenser and transported to the inside of the granulation tower again under the action of the water pump, so as to cool down the blast furnace slag inside the granulation tower, thus saving water resources while ensuring the normal cooling of the blast furnace slag;

[0019] 2. The high-temperature liquid in flow is filtered by setting the elastic ring and the filter holes to avoid the presence of impurities inside the high-temperature liquid, which may cause the pipe and condenser to be blocked during the flow and affect the normal use of the water slag granulation device in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of a water slag granulation device proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of a filtering device for a water slag granulation device proposed by the utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of a filter device of a water slag granulation device proposed by the utility model;

[0023] Figure 4 The utility model provides a schematic diagram of the extension rod structure of the slag granulating device.

[0024] In the figure: 1. granulation tower; 2. condenser; 3. cylindrical shell; 4. blocking cover; 5. sealing ring; 6. fixing ring; 7. blocking ring; 8. elastic ring; 9. impact plate; 10. elastic pull rope; 11. filter hole; 12. knocking ring; 13. extension rod; 14. first pipeline; 15. second pipeline; 16. discharge pipeline. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Example 1, reference Figures 1 to 4 , a slag granulating device, comprising:

[0027] The granulating tower 1 is connected to the condenser 2 through a pipeline, so that a coolant circulates along the pipeline, the granulating tower 1 and the condenser 2 under the action of a water pump;

[0028] Two filter devices, the filter device is fixed in the middle of the pipeline and filters the coolant during its flow;

[0029] A discharge pipe 16 is fixedly mounted at the bottom of the granulation tower 1, and the top of the granulation tower 1 is detachably fixed.

[0030] In this embodiment, the used liquid is cooled by the setting of the condenser 2 and transported to the inside of the granulation tower 1 again under the action of the water pump, so as to cool the blast furnace slag in the granulation tower 1, thereby saving water resources while ensuring the normal cooling of the blast furnace slag.

[0031] In some embodiments of the utility model, the filtering device includes a filter housing, a filter core assembly, and a knocking piece; both ends of the filter housing are connected to the pipeline, the filter core assembly is fixed inside the filter housing, and the opening direction corresponds to the water flow direction, the knocking piece is fixed on the inner end wall of the filter housing and extends to the interior of the filter core assembly, and collides with the filter core assembly when the filter core assembly is restored.

[0032] In some embodiments of the utility model, the filter housing includes a cylindrical outer shell 3, two sealing covers 4, and two sealing rings 5; the two sealing covers 4 are respectively fixed at both ends of the cylindrical outer shell 3, and are fixedly connected to the pipeline, so that the cylindrical outer shell 3 is connected to the pipeline, and the two sealing rings 5 ​​are respectively sleeved on the outside of the two sealing covers 4 and are in contact with the two ends of the cylindrical outer shell 3.

[0033] In this embodiment, a sealed space connected to the pipeline is formed by the arrangement of the cylindrical shell 3 and the blocking cover 4, so that the liquid is normally filtered inside the sealed space, and the blocking cover 4 can be normally disassembled to clean the inside of the cylindrical shell 3;

[0034] The sealing ring 5 can seal the cylindrical shell 3 and the sealing cover 4 to prevent liquid or water vapor from leaking from the connection between the cylindrical shell 3 and the sealing cover 4, thereby preventing the normal circulation of water resources from being affected.

[0035] In some embodiments of the present invention, the filter element assembly includes a fixing ring 6, a blocking ring 7, and a filter element. The fixing ring 6 is detachably fixed to the inside of the cylindrical housing 3 by bolts, the blocking ring 7 is fixed to the inside of the fixing ring 6, and the filter element is bonded to the inside of the blocking ring 7 and deformed under the scouring of the water flow.

[0036] The filter element assembly includes an elastic ring 8, an impact plate 9, and multiple elastic pull ropes 10. The elastic ring 8 is fixed inside the blocking ring 7 and stretched under the scouring of water flow. The outer side of the elastic ring 8 is provided with multiple groups of filter holes 11 evenly distributed in a circular array. The impact plate 9 is fixed at the opening of one end of the elastic ring 8 away from the blocking ring 7. Multiple elastic pull ropes 10 are fixed on the impact plate 9 in a circular array and extend toward the blocking ring 7 to be fixedly connected to the blocking cover 4.

[0037] In this embodiment, the setting of the fixing ring 6 ensures the normal fixation of the elastic ring 8, and prevents the elastic ring 8 from loosening during the pulling process; the setting of the blocking ring 7 blocks the water flow, so that the water flow passes through the elastic ring 8 normally;

[0038] The elastic ring 8 and the filter hole 11 are provided to filter the flowing high-temperature liquid to avoid impurities in the high-temperature liquid, which may block the pipeline and the condenser 2 during the flow and affect the normal use of the water slag granulation device in the later stage;

[0039] The elasticity of the elastic ring 8 and the elastic pull rope 10 can ensure the normal installation and fixation of the impact plate 9, and when the impact plate 9 moves, the pull rope elastic ring 8 and the elastic pull rope 10 can drive the impact plate 9 to quickly reset after the scouring force on the impact plate 9 disappears, and cause the impact plate 9 to collide and drive the filter hole 11 to vibrate and deform, thereby shaking off the filtered impurities, thereby achieving self-cleaning of the filter hole 11.

[0040] In some embodiments of the utility model, the knocking member includes a knocking ring 12 and a plurality of extension rods 13. The plurality of extension rods 13 are fixed on the blocking cover 4 in a ring array and extend to the interior of the elastic ring 8 and are fixedly connected to the knocking ring 12. The knocking ring 12 collides when the impact plate 9 is reset.

[0041] In this embodiment, the extension rod 13 is provided to ensure that the knocking ring 12 is fixed, and the knocking ring 12 will not loosen when subjected to external force. At the same time, the knocking ring 12 can collide with the impact plate 9, so that the impact plate 9 can drive the elastic ring 8 to vibrate normally.

[0042] In some embodiments of the utility model, the pipeline includes a first pipeline 14 and a second pipeline 15, both ends of the first pipeline 14 and the second pipeline 15 are respectively connected to the granulation tower 1 and the condenser 2, and two filtering devices are respectively fixed in the middle of the first pipeline 14 and the second pipeline 15, forming a structure in which the first pipeline 14 transports the cleaning liquid inside the granulation tower 1 to the inside of the condenser 2 under the action of the water pump, and the second pipeline 15 transports the cleaning liquid inside the condenser 2 to the inside of the granulation tower 1 under the action of the water pump.

[0043] In this embodiment, the first pipe 14 and the second pipe 15 are provided to guide the liquid and make the liquid flow back and forth between the granulation tower 1 and the condenser 2 .

[0044] Working principle of this embodiment: when in use, blast furnace slag is transported to the interior of the granulation tower 1 and cold water is added to cool the blast furnace slag. A large amount of water vapor and liquid are generated during the cooling process, and are filtered through the filtering device under the action of the first pipe 14 and enter the interior of the condenser 2 for cooling, and then are extracted through the second pipe 15 and the filtering device and enter the interior of the granulation tower 1 for cooling;

[0045] When the liquid enters the cylindrical shell 3, it will be blocked by the blocking ring 7 and enter the elastic ring 8, and flow out through the filter hole 11 and be filtered. At the same time, during the flow, a force is generated on the impact plate 9, causing the impact plate 9 to move backward and stretch the elastic pull rope 10 and the elastic ring 8. After the water flow stops, the elastic pull rope 10 and the elastic ring 8 will drive the impact plate 9 to quickly reset, and collide with the knocking ring 12, causing the elastic ring 8 to vibrate.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A slag granulation device, characterized in that: include: A granulation tower (1), wherein the granulation tower (1) is connected to a condenser (2) via a pipeline, forming a structure in which a coolant circulates along the pipeline, the granulation tower (1) and the condenser (2) under the action of a water pump; Two filtering devices, which are fixed in the middle of the pipeline and filter the coolant during its flow; The filter device includes a filter housing, a filter core assembly, and a knocking piece; both ends of the filter housing are connected to the pipeline, the filter core assembly is fixed inside the filter housing, and the opening direction corresponds to the water flow direction, the knocking piece is fixed on the inner end wall of the filter housing and extends to the inside of the filter core assembly, and collides with the filter core assembly when the filter core assembly is restored.

2. A slag granulation device according to claim 1, characterized in that: The filter housing comprises a cylindrical outer shell (3), two blocking covers (4), and two sealing rings (5); the two blocking covers (4) are respectively fixed to the two ends of the cylindrical outer shell (3), and are fixedly connected to the pipeline, so that the cylindrical outer shell (3) and the pipeline are connected; the two sealing rings (5) are respectively sleeved on the outside of the two blocking covers (4), and are in contact with the two ends of the cylindrical outer shell (3).

3. The slag granulation device according to claim 1, characterized in that: The filter element assembly comprises a fixing ring (6), a blocking ring (7), and a filter element. The fixing ring (6) is detachably fixed to the inside of the cylindrical housing (3) by means of bolts, the blocking ring (7) is fixed to the inside of the fixing ring (6), and the filter element is bonded to the inside of the blocking ring (7) and deformed under the scouring of water flow.

4. A slag granulation device according to claim 3, characterized in that: The filter element assembly comprises an elastic ring (8), an impact plate (9), and a plurality of elastic pull ropes (10); the elastic ring (8) is fixed inside the blocking ring (7) and stretched under the scouring of water flow, and a plurality of groups of filter holes (11) evenly distributed in an annular array are provided on the outer side of the elastic ring (8); the impact plate (9) is fixed at an opening at one end of the elastic ring (8) away from the blocking ring (7); the plurality of elastic pull ropes (10) are fixed on the impact plate (9) in an annular array and extend toward the blocking ring (7) to be fixedly connected to the blocking cover (4).

5. The slag granulation device according to claim 1, characterized in that: The knocking member comprises a knocking ring (12) and a plurality of extension rods (13). The plurality of extension rods (13) are fixed on the blocking cover (4) in an annular array and extend into the interior of the elastic ring (8) to be fixedly connected to the knocking ring (12). The knocking ring (12) collides when the impact plate (9) is reset.

6. The slag granulation device according to claim 1, characterized in that: The pipeline comprises a first pipeline (14) and a second pipeline (15), both ends of which are respectively connected to the granulation tower (1) and the condenser (2), and two filtering devices are respectively fixed in the middle of the first pipeline (14) and the second pipeline (15), so that the first pipeline (14) transports the cleaning liquid inside the granulation tower (1) to the inside of the condenser (2) under the action of a water pump, and the second pipeline (15) transports the cleaning liquid inside the condenser (2) to the inside of the granulation tower (1) under the action of a water pump.

7. The slag granulation device according to claim 1, characterized in that: A discharge pipe (16) is fixedly installed at the bottom of the granulation tower (1), and the top of the granulation tower (1) is detachably fixed.

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