CN211947099U - Blast furnace slag flushing water waste heat utilization device - Google Patents
Blast furnace slag flushing water waste heat utilization device Download PDFInfo
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- CN211947099U CN211947099U CN202020507532.5U CN202020507532U CN211947099U CN 211947099 U CN211947099 U CN 211947099U CN 202020507532 U CN202020507532 U CN 202020507532U CN 211947099 U CN211947099 U CN 211947099U
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- furnace slag
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Abstract
The utility model provides a waste heat utilization device for blast furnace slag flushing water, which belongs to the technical field of waste water waste heat utilization and comprises a water pool, a first filter body, a stirring mechanism, a heat exchange tube and a second filter body; the top of the water tank is provided with a tank cover; the first filter body is arranged on the tank cover and is used for filtering blast furnace slag flushing water flowing into the water tank; the stirring mechanism is arranged in the water tank and is provided with a stirring paddle and a brush; the stirring paddle is used for stirring blast furnace slag washing water, and the brush can synchronously rotate along with the stirring paddle and is used for cleaning the bottom of the water tank; the heat exchange pipe penetrates through the water tank and is used for enabling a medium in the heat exchange pipe to exchange heat with the blast furnace slag flushing water; the second filter body is arranged at the bottom of the water tank and is used for filtering the flowing blast furnace slag flushing water. The utility model provides a pair of blast furnace slag flushing water waste heat utilization equipment, simple structure, easily operation can improve the utilization ratio of blast furnace slag flushing water waste heat to can also filter the blast furnace slag flushing water once more.
Description
Technical Field
The utility model belongs to the technical field of waste water waste heat utilization, more specifically say, relate to a blast furnace slag flushing water waste heat utilization equipment.
Background
The blast furnace slag flushing water is used as a low-temperature waste heat source, has the characteristics of stable temperature and large flow, and how to make the slag flushing water exert the benefit of waste heat utilization is also a research subject gradually. At present, various domestic iron and steel enterprises continuously try to utilize the waste heat of blast furnace slag flushing water, the utilization mode of the waste heat of the blast furnace slag flushing water for heating in winter and the mode of combining heat supply for a bathing pool or water source supplement and preheating for a boiler in other seasons are technically feasible, have considerable economic benefits, have good energy-saving and emission-reducing effects, and have higher popularization value in northern iron and steel enterprises. When blast furnace slag flushing water is used as a heating heat source, two approaches are mainly adopted by each large steel mill: firstly, direct heat exchange is carried out, and the filtered and purified blast furnace slag flushing water is used as a heating medium and directly enters heating terminal equipment; and secondly, indirect heat exchange is carried out, the filtered and purified blast furnace slag flushing water and a heat exchanger indirectly exchange heat to obtain secondary hot water, and then the secondary hot water is used as a heating medium and enters heating end equipment. Direct heat exchange is frequently applied in the early stage, and because the system can not normally operate due to the phenomena of blockage and corrosion easily occurring in the operation process, the indirect heating technology of the heat exchanger is frequently applied at present. However, the low-temperature blast furnace slag flushing water after indirect heat exchange still contains a large amount of impurities, and the part of slag flushing water cannot be well utilized.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a blast furnace slag flushing water waste heat utilization equipment aims at improving the efficiency of the indirect heat transfer of blast furnace slag flushing water to filter blast furnace slag flushing water, further reduce the impurity in the blast furnace slag flushing water, so that the blast furnace slag flushing water after finishing to the heat transfer recycles.
In order to achieve the above object, the utility model adopts the following technical scheme: the waste heat utilization device for the blast furnace slag washing water comprises a water tank, a first filter body, a stirring mechanism, a heat exchange tube and a second filter body; the top of the water tank is provided with a tank cover; the first filtering body is arranged on the tank cover and is used for filtering blast furnace slag flushing water flowing into the water tank; the stirring mechanism is arranged in the water tank and is provided with a stirring paddle and a hairbrush; the stirring paddle is used for stirring blast furnace slag flushing water, and the brush can synchronously rotate along with the stirring paddle and is used for cleaning the bottom of the water tank; the heat exchange pipe penetrates through the water pool and is used for enabling the medium in the heat exchange pipe to exchange heat with the blast furnace slag flushing water; and the second filter body is arranged at the bottom of the water tank and used for filtering the flowing blast furnace slag flushing water.
As another embodiment of the present application, the first filtering body includes a water inlet pipe and a filtering tank; the water inlet pipe penetrates through the tank cover, and two ends of the water inlet pipe extend out; the filter box sets firmly in the inlet tube is visited into the tip in the pond, the filter box is equipped with the hole of permeating water, the hole of permeating water filters blast furnace slag flushing water.
As another embodiment of the present application, the second filter body includes a water outlet pipe and a filter plate; the water outlet pipe penetrates through the bottom of the water tank, and two ends of the water outlet pipe extend out; the filter plate is fixedly arranged at the end part of the water outlet pipe which extends into the water tank.
As another embodiment of this application, rabbling mechanism still is equipped with the motor, the motor set firmly in on the pond lid and output shaft pass the pond lid with the tip fixed connection of stirring rake.
As another embodiment of this application, the stirring rake is equipped with the arch, the brush is equipped with the recess, the stirring rake is with the help of inserting in the recess the arch drives the brush rotates.
As another embodiment of the application, the pool cover further comprises a pad body, wherein the pad body is arranged between the motor and the pool cover, and the pad body lifts the height of the motor to separate the stirring paddle from the brush.
As another embodiment of this application, still include the supporting body, the supporting body set firmly in the pond, the brush assembly is rotated and is located on the supporting body.
As another embodiment of the application, the pool cover is provided with a hanging ring.
As another embodiment of the present application, the bottom of the pool is provided with legs.
As another embodiment of this application, still include bracing piece and thermometer, the bracing piece set firmly in just be used for supporting in the pond the heat exchange tube, the thermometer set firmly in the outside in pond just is used for showing the temperature of blast furnace slag flushing water in the pond.
The utility model provides a pair of blast furnace slag washing water waste heat utilization equipment's beneficial effect lies in: compared with the prior art, the top of the water tank is provided with the tank cover, the first filter body is arranged on the tank cover and can filter the blast furnace slag flushing water entering the water tank, and the impurities in the blast furnace slag flushing water are prevented from entering the water tank and polluting the water tank; the heat exchange tube penetrates through the water tank, the medium in the heat exchange tube can exchange heat with the blast furnace slag flushing water in the water tank, the utilization of the waste heat of the blast furnace slag flushing water is realized, and the stirring paddle in the stirring mechanism is arranged in the water tank and can stir the blast furnace slag flushing water in the water tank, so that the heat of the blast furnace slag flushing water at each position in the water tank is more uniform; the brush can rotate along with the rotation of stirring rake, and the brush can be cleaned the bottom in the pond in the rotation process, when the pond carries out the operation of draining to the lower blast furnace slag flushing water of temperature, the brush can clean the bottom in pond under the rotation of stirring rake, and the second filters the body and sets up in the bottom in pond, can filter the blast furnace slag flushing water that flows, guarantees that the blast furnace slag flushing water impurity in the pond that flows is less, reduces the influence to later process. The utility model provides a pair of blast furnace slag flushing water waste heat utilization equipment, simple structure, easily operation can improve the utilization ratio of blast furnace slag flushing water waste heat to can also filter the blast furnace slag flushing water once more.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a blast furnace slag flushing water waste heat utilization device provided by an embodiment of the utility model;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a cross-sectional view of the cushion body of FIG. 2 with the cushion body removed;
FIG. 4 is an exploded view of the combination of the paddle, brush and carrier of FIG. 1;
FIG. 5 is a schematic view of the structure of the stirring paddle and the brush in FIG. 1 rotating synchronously;
FIG. 6 is an exploded view of the combination of the tank cover, the lifting ring, the first filter body, the motor and the paddle of FIG. 1;
FIG. 7 is a schematic view of the structure of the sink and legs of FIG. 1;
FIG. 8 is a cross-sectional view of FIG. 7;
FIG. 9 is a schematic view of the first filter body of FIG. 1;
FIG. 10 is a bottom view of FIG. 9;
FIG. 11 is a cross-sectional view of FIG. 9;
FIG. 12 is a schematic view of the second filter body of FIG. 1;
fig. 13 is a cross-sectional view of fig. 12.
In the figure:
1. a pool; 2. a pool cover; 3. a first filter body; 4. a stirring mechanism; 5. a heat exchange pipe; 6. a second filter body; 7. a hoisting ring; 8. a support leg; 9. a support bar; 10. a thermometer;
11. a water outlet hole; 12. a through hole; 13. a carrier; 14. a cushion body;
21. a through hole; 22. a water inlet hole;
31. a water inlet pipe; 32. a filter box; 33. a first valve;
41. a stirring paddle; 42. a brush; 43. a motor; 44. a protrusion; 45. a groove;
61. a water outlet pipe; 62. a filter plate; 63. a second valve.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 6, a waste heat utilization device for blast furnace slag flushing water provided by the present invention will now be described. The blast furnace slag washing water waste heat utilization device comprises a water tank 1, a first filter body 3, a stirring mechanism 4, a heat exchange tube 5 and a second filter body 6; the top of the water pool 1 is provided with a pool cover 2; the first filter body 3 is arranged on the tank cover 2 and is used for filtering blast furnace slag flushing water flowing into the water tank 1; the stirring mechanism 4 is arranged in the water pool 1, and the stirring mechanism 4 is provided with a stirring paddle 41 and a brush 42; the stirring paddle 41 is used for stirring blast furnace slag washing water, and the brush 42 can synchronously rotate along with the stirring paddle 41 and is used for cleaning the bottom of the water tank 1; the heat exchange tube 5 passes through the water tank 1 and is used for enabling a medium in the heat exchange tube 5 to exchange heat with blast furnace slag flushing water; the second filter body 6 is arranged at the bottom of the water tank 1 and is used for filtering the flowing blast furnace slag flushing water.
Compared with the prior art, the waste heat utilization device for the blast furnace slag flushing water has the advantages that the top of the water pool 1 is provided with the pool cover 2, the first filter body 3 is arranged on the pool cover 2 and can filter the blast furnace slag flushing water entering the water pool 1, so that impurities in the blast furnace slag flushing water are prevented from entering the water pool 1 and polluting the water pool 1; the heat exchange tube 5 penetrates through the water pool 1, the medium in the heat exchange tube 5 can exchange heat with the blast furnace slag flushing water in the water pool 1, the utilization of the waste heat of the blast furnace slag flushing water is realized, and the stirring paddle 41 in the stirring mechanism 4 is arranged in the water pool 1 and can stir the blast furnace slag flushing water in the water pool 1, so that the heat of the blast furnace slag flushing water at each position in the water pool 1 is more uniform; the brush 42 can rotate along with the rotation of the stirring paddle 41, the brush 42 can be used for cleaning the bottom of the water tank 1 in the rotating process, when the water tank 1 discharges water to blast furnace slag flushing water with lower temperature, the brush 42 can be used for cleaning the bottom of the water tank 1 under the rotation of the stirring paddle 41, the second filter body 6 is arranged at the bottom of the water tank 1, the flowing blast furnace slag flushing water can be filtered, the impurity of the blast furnace slag flushing water in the water tank 1 is ensured to be less, and the influence on the following procedures is reduced.
In this embodiment, in order to make the water in the pool 1 flow out more easily, the bottom surface in the pool 1 may be set to have an inclined angle, as shown in fig. 8, when the second filter 6 is set at the center of the bottom of the pool 1, the height of the center of the bottom of the pool 1 may be set to be slightly lower than that of the other places, which is beneficial to the slag flushing water flow of the blast furnace out of the pool 1.
Referring to fig. 9 to 11, as a specific embodiment of the waste heat utilization device for blast furnace slag washing water provided by the present invention, the first filter body 3 includes a water inlet pipe 31 and a filter box 32; the water inlet pipe 31 penetrates through the tank cover 2, and both ends of the water inlet pipe are extended out; the filter box 32 is fixedly arranged at the end part of the water inlet pipe 31 which extends into the water tank 1, and the filter box 32 is provided with water permeable holes which filter blast furnace slag flushing water. The filter box 32 is arranged at the bottom of the water inlet pipe 31, a cavity is arranged in the filter box 32, the bottom of the cavity is provided with water permeable holes, and blast furnace slag flushing water flows into the filter box 32 from the water inlet pipe 31 and then flows into the water tank 1 through the water permeable holes; offer inlet opening 22 on the pond lid 2, inlet tube 31 wears to establish in inlet opening 22, and inlet tube 31 sets up the external screw thread, and inlet opening 22 is the screw hole, and inlet tube 31 and inlet opening 22 are threaded connection's form. This form facilitates disassembly.
In this embodiment, the first valve 33 is disposed at a position of the water inlet pipe 31 extending out of the water tank 1, and the first valve 33 may be disposed on the water inlet pipe 31 in order to control the amount of water flowing into the water tank 1 and ensure good air tightness of the water tank 1.
Referring to fig. 12 and 13, the second filter 6 includes a water outlet pipe 61 and a filter plate 62; the water outlet pipe 61 penetrates through the bottom of the water tank 1, and two ends of the water outlet pipe are extended out; the filter plate 62 is fixedly arranged at the end of the water outlet pipe 61 which extends into the water tank 1. Set up outlet pipe 61 and filter 62 in the second filter 6, outlet pipe 61 passes the bottom in pond 1 and both ends all visit from the cell body in pond 1, and filter 62 sets up a plurality of eyelets for filter outflow blast furnace sluicing water, and filter 62 sets up the top at outlet pipe 61, and filter 62 contacts completely with the bottom in pond 1, and blast furnace sluicing water in the pond 1 flows through the eyelet on the filter 62 earlier, enters into in the outlet pipe 61 again. The bottom in pond 1 is seted up outlet pipe 11, and outlet pipe 61 wears to establish in outlet pipe 11, and outlet pipe 61 sets up the external screw thread, and outlet pipe 11 is the screw hole, and outlet pipe 61 is threaded connection's form with outlet pipe 11.
In this embodiment, a second valve 63 is disposed at a position of the water outlet pipe 61 extending out of the water pool 1. The water outlet pipe 61 is provided with a second valve 63 which can control whether the blast furnace slag flushing water flows out of the water pool 1.
As a specific embodiment of the blast furnace slag washing water waste heat utilization device provided by the present invention, please refer to fig. 1 to 4, the stirring mechanism 4 is further provided with a motor 43, the motor 43 is fixedly disposed on the tank cover 2, and the output shaft passes through the tank cover 2 and the end fixed connection of the stirring paddle 41. The motor 43 is fixedly arranged on the tank cover 2, the central part of the tank cover 2 is provided with the through hole 21, the output shaft of the motor 43 penetrates through the through hole 21 and then is fixedly connected with the stirring paddle 41, the motor 43 drives the stirring paddle 41 to rotate, and in order to enable the motor 43 to provide larger torque, a speed reducer can be arranged between the motor 43 and the stirring paddle 41.
In this embodiment, the heat exchange pipe 5 is formed in a spiral shape at a portion in the water tank 1. The heat exchange tube 5 is arranged in the water tank 1 in a spiral shape, so that the contact area between the heat exchange tube 5 and the blast furnace slag flushing water in the water tank 1 is increased, the heat exchange efficiency of the heat exchange tube 5 is improved, and the waste heat utilization rate of the blast furnace slag flushing water is also increased. In order to realize that the heat exchange pipe 5 can penetrate through the water tank 1, a through hole 12 is formed in the side part of the water tank 1, and the heat exchange pipe 5 is arranged in the through hole 12 in a penetrating mode. In order to ensure that the blast furnace slag flushing water can heat the medium in the heat exchange tube 5 more effectively, the two through holes 12 can be arranged in a high-low mode, and the flowing direction of the medium in the heat exchange tube 5 is the direction from the through hole 12 at the low position to the through hole 12 at the high position.
As a specific embodiment of the blast furnace slag washing water waste heat utilization device provided by the present invention, please refer to fig. 4 to 5, the stirring paddle 41 is provided with a protrusion 44, the brush 42 is provided with a groove 45, and the stirring paddle 41 drives the brush 42 to rotate by means of the protrusion 44 inserted into the groove 45. The protrusion 44 can be inserted into the groove 45, and then when the stirring paddle 41 rotates, the side wall of the protrusion 44 and the side wall of the groove 45 are squeezed, so that the brush 42 rotates, and when water is discharged from the water tank 1, the bottom of the water tank 1 is cleaned; when the protrusion 44 is not inserted into the groove 45, the brush 42 is not rotated by the paddle 41.
As a specific embodiment of the blast furnace slag washing water waste heat utilization device provided by the present invention, please refer to fig. 2 to 5, further comprising a cushion body 14, wherein the cushion body 14 is disposed between the motor 43 and the tank cover 2, and the cushion body 14 lifts the motor 43 to separate the stirring paddle 41 and the brush 42. A penetrating hole is arranged in the mat body 14, the output shaft of the motor 43 penetrates through the penetrating hole, when the mat body 14 is arranged in front of the motor 43 and the pool cover 2, the stirring paddle 41 is separated from the brush 42, as shown in figure 2, the stirring paddle 41 can not drive the brush 42 to rotate; when the mat 14 is not disposed between the motor 43 and the pool cover 2, as shown in fig. 3, the protrusion 44 of the paddle 41 is inserted into the groove 45 of the brush 42, and the paddle 41 can rotate with the brush 42.
As a specific embodiment of the blast furnace slag washing water waste heat utilization device provided by the present invention, please refer to fig. 2 to 5, further comprising a supporting body 13, wherein the supporting body 13 is fixedly disposed in the pool 1, and the brush 42 is rotatably disposed on the supporting body 13. The bearing body 13 is provided with a round hole, the brush 42 rotates by means of the round hole arranged on the bearing body 13, a part of the brush 42 passes through the bearing body 13, the components of the brush 42 are in a detachable connection mode, and two ends of the bearing body 13 are fixedly arranged inside the water pool 1.
As a specific embodiment of the waste heat utilization device for blast furnace slag washing water provided by the present invention, please refer to fig. 1, a lifting ring 7 is arranged on the tank cover 2. Set up rings 7 at the top of pond lid 2, make things convenient for the workman to take and carry pond lid 2, in order to guarantee that pond lid 2 can be stable be carried away, set up a plurality of rings 7 at the top symmetry of pond lid 2.
As a specific embodiment of the waste heat utilization device for blast furnace slag washing water provided by the present invention, please refer to fig. 1, the bottom of the water pool 1 is provided with a support leg 8. Set up landing leg 8 in the bottom in pond 1, just so can be with regard to the second filter body 6 setting in the bottom in pond 1, made things convenient for the blast furnace slag flushing water in the pond 1 to flow out of pond 1 from second filter body 6, in order to improve the stability in pond 1, set up a plurality of landing legs 8 in the bottom in pond 1 to set up the bigger connecting plate of cross-sectional area in the bottom of landing leg 8, can reduce the pressure of landing leg 8 to the contact like this.
As a specific embodiment of the utility model, please refer to fig. 1 to 2, it still includes bracing piece 9 and thermometer 10 to please refer to a specific embodiment of a blast furnace slag flushing water waste heat utilization device, and bracing piece 9 sets firmly in pond 1 and is used for supporting heat exchange tube 5, and thermometer 10 sets firmly in the outside of pond 1 and is used for showing the temperature of blast furnace slag flushing water in pond 1. The supporting rod 9 is fixedly arranged on the inner wall of the water pool 1, and the heat exchange tube 5 is placed on the supporting rod 9, so that the supporting rod 9 can support the heat exchange tube 5; the thermometer 10 is arranged outside the water pool 1 and used for feeding back temperature to workers in time, when the temperature in the water pool 1 is too low, the blast furnace slag flushing water in the water pool 1 needs to be replaced by new blast furnace slag flushing water, and therefore the utilization rate of the waste heat of the blast furnace slag flushing water is improved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a blast furnace slag washing water waste heat utilization equipment which characterized in that includes:
the top of the water tank is provided with a tank cover;
the first filtering body is arranged on the tank cover and is used for filtering blast furnace slag flushing water flowing into the water tank;
the stirring mechanism is arranged in the water tank and is provided with a stirring paddle and a hairbrush; the stirring paddle is used for stirring blast furnace slag flushing water, and the brush can synchronously rotate along with the stirring paddle and is used for cleaning the bottom of the water tank;
the heat exchange pipe penetrates through the water pool and is used for enabling the medium in the heat exchange pipe to exchange heat with the blast furnace slag flushing water; and
and the second filter body is arranged at the bottom of the water tank and used for filtering the flowing blast furnace slag flushing water.
2. The blast furnace slag washing water waste heat utilization device of claim 1, wherein the first filter body comprises:
the water inlet pipe penetrates through the tank cover, and two ends of the water inlet pipe extend out; and
the filter box sets firmly in the inlet tube is visited into the tip in the pond, the filter box is equipped with the hole of permeating water, the hole of permeating water filters blast furnace slag flushing water.
3. The blast furnace slag washing water waste heat utilization device of claim 1, wherein the second filter body comprises:
the water outlet pipe penetrates through the bottom of the water pool, and two ends of the water outlet pipe extend out; and
and the filter plate is fixedly arranged at the end part of the water outlet pipe which extends into the water tank.
4. The waste heat utilization device of blast furnace slag washing water as claimed in claim 1, wherein the stirring mechanism is further provided with a motor, the motor is fixedly arranged on the tank cover, and an output shaft passes through the tank cover and is fixedly connected with the end part of the stirring paddle.
5. The waste heat utilization device of claim 4, wherein the stirring paddle is provided with a protrusion, the brush is provided with a groove, and the stirring paddle drives the brush to rotate by means of the protrusion inserted into the groove.
6. The waste heat utilization device of blast furnace slag flushing water as claimed in claim 5, further comprising a pad body, wherein the pad body is arranged between the motor and the pool cover, and the pad body raises the height of the motor to separate the stirring paddle from the brush.
7. The blast furnace slag washing water waste heat utilization device of claim 1, further comprising a bearing body, wherein the bearing body is fixedly arranged in the water tank, and the brush is rotatably arranged on the bearing body.
8. The blast furnace slag washing water waste heat utilization device of claim 1, wherein a hanging ring is arranged on the tank cover.
9. The waste heat utilization device of blast furnace slag washing water as claimed in claim 1, wherein the bottom of the water tank is provided with support legs.
10. The waste heat utilization device of blast furnace slag flushing water of claim 1, further comprising a support rod and a thermometer, wherein the support rod is fixedly arranged in the water tank and is used for supporting the heat exchange tube, and the thermometer is fixedly arranged outside the water tank and is used for displaying the temperature of the blast furnace slag flushing water in the water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020507532.5U CN211947099U (en) | 2020-04-09 | 2020-04-09 | Blast furnace slag flushing water waste heat utilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020507532.5U CN211947099U (en) | 2020-04-09 | 2020-04-09 | Blast furnace slag flushing water waste heat utilization device |
Publications (1)
| Publication Number | Publication Date |
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| CN211947099U true CN211947099U (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020507532.5U Active CN211947099U (en) | 2020-04-09 | 2020-04-09 | Blast furnace slag flushing water waste heat utilization device |
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| Country | Link |
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| CN (1) | CN211947099U (en) |
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2020
- 2020-04-09 CN CN202020507532.5U patent/CN211947099U/en active Active
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