Blast furnace slag flushing water waste heat recycling device

Abstract

The blast furnace slag flushing water waste heat recycling device comprises a filter cartridge, a water pump and a heating radiator, the input end of the water pump is inserted into the filter cartridge, the output end of the water pump is provided with one end of a water conveying pipe, the other end of the water conveying pipe is communicated with an inner cavity of the heating radiator, and a water inlet pipe is inserted into the upper wall of the filter cartridge; a filtering mechanism is installed in the filtering cylinder, the outer side of the filtering cylinder is sleeved with a heat preservation mechanism, the heat preservation mechanism comprises a heat preservation cover shell, a flow dividing pipe, a pump machine and a water drainage pipe, the heat preservation cover shell is sleeved with the outer side of the filtering cylinder, the side wall of the heat preservation cover shell is provided with one end of the flow dividing pipe in an inserted mode, and the other end of the flow dividing pipe is inserted into the water inlet pipe; according to the device, the heat preservation mechanism is arranged on the outer side of the filter cartridge, hot slag flushing water is introduced into the heat preservation housing, heat preservation can be conducted on the filter cartridge, and the situation that heat of the slag flushing water in the filter cartridge is lost, and the waste heat recycling efficiency is affected is avoided.

Description

Technical Field

[0001] This patent relates to the field of waste heat recovery, specifically a device for recovering and utilizing waste heat from blast furnace slag flushing water. Background Technology

[0002] Blast furnace flushing water is a byproduct of blast furnace ironmaking, which is processed and utilized. Blast furnace slag contains a large amount of sulfur, which reacts to form SO2 and SO3 after flushing with water. For the comprehensive utilization of blast furnace slag, it is often quenched in water to produce slag, which becomes a raw material for making slag cement or slag bricks and other building materials. However, the existing blast furnace flushing water contains a certain amount of heat, and this heat cannot be recovered.

[0003] The waste heat recovery device for blast furnace slag flushing water proposed in application number CN202022269428.X achieves the purpose of recovering and utilizing the waste heat of slag flushing water by filtering the slag flushing water in the slag flushing water tank and then pumping it into the radiator through a pump.

[0004] However, the slag flushing water tank in the above document is in an open state. After the slag flushing water enters the slag flushing water tank, its internal heat will dissipate rapidly, affecting the efficiency of waste heat recovery and making it less practical. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this patent is to provide a device for recovering and utilizing waste heat from blast furnace slag flushing water.

[0006] The technical solution adopted by this patent to solve its technical problem is: a waste heat recovery and utilization device for blast furnace slag flushing water, including a filter cylinder, a water pump and a radiator. The input end of the water pump is inserted into the filter cylinder, and the output end of the water pump is connected to one end of a water supply pipe. The other end of the water supply pipe is connected to the inner cavity of the radiator.

[0007] A water inlet pipe is inserted into the upper wall of the filter cylinder. A filtration mechanism is installed inside the filter cylinder. An insulation mechanism is fitted onto the outer side of the filter cylinder. The insulation mechanism includes an insulation cover, a diversion pipe, a pump, and a drain pipe. The insulation cover is fitted onto the outer side of the filter cylinder. One end of the diversion pipe is inserted into the side wall of the insulation cover, and the other end of the diversion pipe is inserted into the water inlet pipe. A pump is installed on the side wall of the insulation cover. The pump is electrically connected to an external power source. The input end of the pump is inserted into the insulation cover, and the output end of the pump is fitted with a drain pipe. The other end of the drain pipe is inserted into the upper wall of the filter cylinder.

[0008] Furthermore, the filtration mechanism includes a fixed sleeve, a connecting rod, and a filter plate. A convex ring is installed on the inner side wall of the filter cylinder. The fixed sleeve is inserted into the filter cylinder. One end of the connecting rod is installed on the lower wall of the fixed sleeve, and the filter plate is installed on the other end of the connecting rod.

[0009] Furthermore, the filter cartridge includes a cartridge body and a cartridge cover, the water inlet pipe is inserted and installed on the upper wall of the cartridge cover, the water pump is installed on the side wall of the cartridge body, and a sealing ring is installed on the lower wall of the cartridge cover, the sealing ring being able to fit against the upper wall of the cartridge body.

[0010] Furthermore, an electronic thermometer is inserted and installed on the upper wall of the water supply pipe. The electronic thermometer is electrically connected to an external power source, and the probe of the electronic thermometer is inserted into the interior of the water supply pipe.

[0011] Furthermore, the upper wall of the cylinder cover is provided with a threaded hole, a screw is rotatably installed in the threaded hole, and a lifting ring is installed at the upper end of the screw.

[0012] Furthermore, an insulation sleeve is fitted onto the outer side of the insulation cover, and a heat insulation pad is fitted onto the side wall of the insulation sleeve.

[0013] The beneficial effects of this patent are:

[0014] This device can keep the filter cartridge warm by setting a heat insulation mechanism on the outside of its filter cartridge and introducing hot flushing water into the heat insulation shell, thus preventing the heat loss of the flushing water inside and affecting the efficiency of waste heat recovery.

[0015] Meanwhile, the filter cartridge in this device is equipped with a cover on top, which can seal the filter cartridge and prevent heat from escaping from the filter cartridge. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this patent.

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of this patent.

[0018] Figure 3 yes Figure 1 Schematic diagram of the structure at point A in the middle.

[0019] Explanation of reference numerals in the attached drawings: 1. Filter cylinder, 2. Water pump, 3. Radiator, 4. Water supply pipe, 5. Inlet pipe, 6. Filter mechanism, 61. Fixing sleeve, 62. Connecting rod, 63. Filter plate, 7. Insulation mechanism, 71. Insulation cover, 72. Diverter pipe, 73. Pump, 74. Drain pipe, 8. Convex ring, 9. Sealing ring, 10. Electronic thermometer, 11. Cylinder body, 12. Cylinder cover, 13. Threaded hole, 14. Screw, 15. Lifting ring, 16. Insulation sleeve, 17. Insulation pad. Detailed Implementation

[0020] The present patent is further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the patent. Furthermore, it should be understood that after reading the teachings of this patent, those skilled in the art can make various alterations or modifications to this patent, and these equivalent forms also fall within the scope defined by the appended claims.

[0021] See Figure 1 , Figure 2 , Figure 3 This is a schematic diagram of the structure of this patent. A waste heat recovery and utilization device for blast furnace slag flushing water includes a filter cylinder 1, a water pump 2 and a radiator 3. The input end of the water pump 2 is inserted into the filter cylinder 1, and the output end of the water pump 2 is connected to one end of a water supply pipe 4. The other end of the water supply pipe 4 is connected to the inner cavity of the radiator 3.

[0022] The flushing water filtered by the filter cartridge 1 can be pumped into the heating radiator 3 by the water pump 2, so as to achieve the purpose of recovering and utilizing the waste heat of the flushing water.

[0023] A water inlet pipe 5 is inserted into the upper wall of the filter cylinder 1. A filter mechanism 6 is installed inside the filter cylinder 1. A heat insulation mechanism 7 is sleeved on the outside of the filter cylinder 1. The heat insulation mechanism 7 includes a heat insulation cover 71, a diversion pipe 72, a pump 73, and a drain pipe 74. The heat insulation cover 71 is sleeved on the outside of the filter cylinder 1. One end of the diversion pipe 72 is inserted into the side wall of the heat insulation cover 71. The other end of the diversion pipe 72 is inserted into the water inlet pipe 5. A pump 73 is installed on the side wall of the heat insulation cover 71. The pump 73 is electrically connected to an external power source. The input end of the pump 73 is inserted into the heat insulation cover 71. A drain pipe 74 is installed at the output end of the pump 73. The other end of the drain pipe 74 is inserted into the upper wall of the filter cylinder 1.

[0024] The flushing water will be diverted in the inlet pipe 5. Part of it will enter the diversion pipe 72 and then be injected into the insulation cover 71, so that the flushing water will wrap around the filter cylinder 1, thereby insulating the filter cylinder 1 and preventing heat loss in the flushing water during filtration. The flushing water in the insulation cover 71 will be pumped into the drain pipe 74 by the pump 73 and then enter the filter cylinder 1 for filtration.

[0025] The filter mechanism 6 includes a fixed sleeve 61, a connecting rod 62 and a filter plate 63. A protruding ring 8 is installed on the inner side wall of the filter cylinder 1. The fixed sleeve 61 is inserted into the filter cylinder 1. One end of the connecting rod 62 is installed on the lower wall of the fixed sleeve 61, and the filter plate 63 is installed on the other end of the connecting rod 62.

[0026] By setting the convex ring 8, the filter plate 63 can be placed inside the filter cylinder 1 to filter the slag water. By setting the fixing sleeve 61, the filter mechanism 6 can be easily removed from the filter cylinder 1 for easy cleaning.

[0027] The filter cartridge 1 includes a cartridge body 11 and a cartridge cover 12. The water inlet pipe 5 is inserted into and installed on the upper wall of the cartridge cover 12. The water pump 2 is installed on the side wall of the cartridge body 11. A sealing ring 9 is installed on the lower wall of the cartridge cover 12. The sealing ring 9 can fit against the upper wall of the cartridge body 11.

[0028] In this article, the filter cylinder 1 consists of two parts. By setting the cylinder cover 12, the cylinder body 11 can be sealed to prevent excessive heat loss in the flushing water. Then, by setting the sealing ring 9, the connection between the cylinder body 11 and the cylinder cover 12 can be sealed.

[0029] An electronic thermometer 10 is installed on the upper wall of the water supply pipe 4. The electronic thermometer 10 is electrically connected to an external power source, and the probe of the electronic thermometer 10 is inserted into the interior of the water supply pipe 4.

[0030] The electronic thermometer 10 mentioned in this article is existing technology. The electronic thermometer 10 can be used to monitor the temperature of the filtered flushing water in real time.

[0031] The upper wall of the cylinder cover 12 is provided with a threaded hole 13, and a screw 14 is rotatably installed in the threaded hole 13. A lifting ring 15 is installed at the upper end of the screw 14.

[0032] The screw 14 and the lifting ring 15 make it easy to lift the cylinder cover 12 and remove the filter plate 63 for cleaning.

[0033] An insulation sleeve 16 is fitted onto the outer side of the insulation cover 71, and a heat insulation pad 17 is fitted onto the side wall of the insulation sleeve 16.

[0034] The insulation sleeve 16 is a foam insulation layer that wraps around the outside of the insulation cover 71 to improve the insulation capacity of the insulation cover 71. Its heat insulation pad 17 can prevent the device from burning the staff.

[0035] During operation, the flushing water is divided in the inlet pipe 5. One part enters the filter cylinder 1 for direct filtration, while the other part enters the diversion pipe 72 and is then injected into the insulation cover 71. This allows the flushing water to envelop the filter cylinder 1, thus insulating it and preventing heat loss during filtration. The flushing water in the insulation cover 71 is then pumped into the drain pipe 74 by the pump 73 and then into the filter cylinder 1 for filtration.

[0036] After filtration, the flushing water will be pumped into the radiator 3 by water pump 2, so as to achieve the purpose of recovering and utilizing the waste heat of the flushing water.

[0037] It will be apparent to those skilled in the art that this patent is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this patent. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this patent is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this patent. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for recovering and utilizing waste heat from blast furnace slag flushing water, comprising a filter cylinder (1), a water pump (2), and a radiator (3), characterized in that: The input end of the water pump (2) is inserted into the filter cylinder (1), and the output end of the water pump (2) is connected to one end of the water pipe (4). The other end of the water pipe (4) is connected to the inner cavity of the radiator (3). A water inlet pipe (5) is inserted into the upper wall of the filter cylinder (1). A filter mechanism (6) is installed inside the filter cylinder (1). A heat insulation mechanism (7) is sleeved on the outside of the filter cylinder (1). The heat insulation mechanism (7) includes a heat insulation cover (71), a diversion pipe (72), a pump (73), and a drain pipe (74). The heat insulation cover (71) is sleeved on the outside of the filter cylinder (1). One end of the diversion pipe (72) is inserted into the side wall of the heat insulation cover (71). The other end of the diversion pipe (72) is inserted into the water inlet pipe (5). A pump (73) is installed on the side wall of the heat insulation cover (71). The pump (73) is electrically connected to an external power source. The input end of the pump (73) is inserted into the heat insulation cover (71). A drain pipe (74) is installed at the output end of the pump (73). The other end of the drain pipe (74) is inserted into the upper wall of the filter cylinder (1).

2. The blast furnace slag flushing water waste heat recovery and utilization device according to claim 1, characterized in that: The filtration mechanism (6) includes a fixed sleeve (61), a connecting rod (62) and a filter plate (63). A convex ring (8) is installed on the inner side wall of the filter cylinder (1). The fixed sleeve (61) is inserted into the filter cylinder (1). One end of the connecting rod (62) is installed on the lower wall of the fixed sleeve (61), and the other end of the connecting rod (62) is installed with the filter plate (63).

3. The blast furnace slag flushing water waste heat recovery and utilization device according to claim 1, characterized in that: The filter cartridge (1) includes a cartridge body (11) and a cartridge cover (12). The water inlet pipe (5) is inserted and installed on the upper wall of the cartridge cover (12). The water pump (2) is installed on the side wall of the cartridge body (11). A sealing ring (9) is installed on the lower wall of the cartridge cover (12). The sealing ring (9) can fit against the upper wall of the cartridge body (11).

4. The blast furnace slag flushing water waste heat recovery and utilization device according to claim 1, characterized in that: An electronic thermometer (10) is inserted into the upper wall of the water supply pipe (4). The electronic thermometer (10) is electrically connected to an external power source, and the probe of the electronic thermometer (10) is inserted into the interior of the water supply pipe (4).

5. The blast furnace slag flushing water waste heat recovery and utilization device according to claim 1, characterized in that: The upper wall of the cylinder cover (12) is provided with a threaded hole (13), and a screw (14) is rotatably installed in the threaded hole (13). A lifting ring (15) is installed at the upper end of the screw (14).

6. The blast furnace slag flushing water waste heat recovery and utilization device according to claim 1, characterized in that: The outer side of the insulation cover (71) is fitted with an insulation sleeve (16), and the side wall of the insulation sleeve (16) is fitted with a heat insulation pad (17).

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