Coke heat utilization device

Abstract

The utility model provides a coke heat utilization device which comprises a coke quenching tower, one side of the coke quenching tower is connected with a coke quenching water inlet pipeline, the upper part of the coke quenching tower is connected with a steam inlet of a dust removal device, an exhaust port of the dust removal device is connected with a condensing device, and the condensing device is connected with a gas-liquid phase splitting device; a circulating water pipeline connected with the bottom of the gas-liquid phase splitting device is merged into a coke quenching water inlet pipeline; dust and impurities in steam are removed through the dust removal device, emission of pollutants such as dust is reduced, and steam purification is achieved; condensed water is recycled through two-stage condensation, and the water consumption is reduced; saturated desalted water is introduced into the condensing device to absorb heat generated by the quenching tower to generate low-pressure steam and clean low-pressure steam as a byproduct, and the byproduct steam is applied to other working sections, so that the energy consumption and the production cost are reduced; the device is simple in structure, low in investment cost, convenient to operate, safe, reliable and capable of achieving pollution-free and optimal resource comprehensive utilization.

Description

Technical Field

[0001] This application relates to the field of heat recovery and utilization technology, specifically to a coke heat utilization device. Background Technology

[0002] There are two main types of coke quenching methods: wet quenching and dry quenching. Currently, large coking plants in my country mainly use dry quenching, while wet quenching is used as a backup during dry quenching maintenance. Wet quenching needs to be run for a period of time every year. In addition, due to factors such as furnace type, coal source conditions, and product characteristics, some coking plants are not suitable for dry quenching and still use wet quenching.

[0003] The characteristics of water vapor in wet quenching are as follows: Large dust particles constitute a large proportion of the dust entrained in the water vapor, with particles larger than 500 mg accounting for more than 60%; the H2 content in the water vapor is very high, with an explosion limit of 4%–75.6%; the CO content in the water vapor is within a safe range. However, in existing technologies, wet quenching generates a large amount of water vapor containing a significant amount of unused heat, resulting in heat waste and severe water loss. Furthermore, the water vapor, carrying a large amount of coke powder particles, diffuses outward from the top of the quenching tower, polluting the environment and causing varying degrees of harm to surrounding plants and residents. The "white smoke" produced by wet quenching causes visual pollution, and especially when the coking plant is close to a highway, it can pose a traffic safety hazard. Therefore, water vapor treatment is necessary.

[0004] A wet quenching system, application number 201621011541.5, discloses a technical solution. The wet quenching system includes: a quenching tank; a heat exchanger, whose inlet is connected to the quenching steam outlet of the quenching tank via a first pipe, allowing the quenching steam entering the heat exchanger to exchange heat with the heat exchange medium inside the heat exchanger, thus liquefying the water vapor in the quenching steam; and a scrubbing tower, whose inlet is connected to the outlet of the heat exchanger via a second pipe, to introduce the quenching steam treated by the heat exchanger into the scrubbing tower. The scrubbing tower is used to liquefy the ammonia and residual water vapor in the quenching steam to separate non-condensable gases, which are then introduced into the coke oven through the outlet. This novel wet quenching system obtains heat from the quenching steam through heat exchange and recovers the water vapor in the quenching steam. More importantly, it effectively prevents the direct discharge of quenching steam into the atmosphere, thus avoiding environmental impact.

[0005] In this application, water vapor directly enters the heat exchanger for heat exchange without treating the dust entrained in the water vapor. This inevitably leads to environmental pollution and causes varying degrees of harm to surrounding plants and residents. Therefore, a new technical solution is still needed to address the aforementioned technical problems. Utility Model Content

[0006] This application provides a coke heat utilization device, including a coke quenching tower, a coke quenching water inlet pipe connected to one side of the coke quenching tower, a steam inlet of a dust removal device connected to the upper part of the coke quenching tower, an exhaust port of the dust removal device connected to a condensing device, a condensing device connected to a gas-liquid phase separation device, and a circulating water pipeline connected to the bottom of the gas-liquid phase separation device connected to the coke quenching water inlet pipe.

[0007] As a preferred embodiment, the quenching tower bottom pipeline connected to the bottom of the quenching tower is integrated into the quenching water inlet pipeline.

[0008] As a preferred embodiment, the condensation device includes a primary condenser and a secondary condenser, and the gas-liquid phase separation device includes a primary gas phase separator and a secondary gas phase separator; wherein, the exhaust port of the dust removal device is connected to the input end of the primary condenser, the output end of the primary condenser is connected to the inlet of the primary gas phase separator, the top of the primary gas phase separator is connected to the input end of the secondary condenser, the output end of the secondary condenser is connected to the inlet of the secondary gas phase separator, and a non-condensable gas extraction pipeline is connected to the top of the secondary gas phase separator; the bottoms of the primary and secondary gas phase separators are respectively connected to circulating water pipelines.

[0009] As a preferred embodiment, a condensate storage tank is provided between the bottom of the primary vapor phase separator and the secondary vapor phase separator and the quenching water inlet pipe.

[0010] As a preferred embodiment, the primary condenser is provided with a cooling medium inlet and a cooling medium outlet.

[0011] As a preferred embodiment, brine is introduced into the cooling medium inlet, and low-pressure steam is output from the cooling medium outlet.

[0012] As a preferred embodiment, the secondary condenser is provided with a second cooling medium inlet and a second cooling medium outlet.

[0013] As a preferred embodiment, the second cooling medium inlet is for supplying circulating cooling water, and the second cooling medium outlet is for discharging circulating cooling water.

[0014] As a preferred embodiment, the quenching tower is equipped with a spray device connected to the quenching water inlet pipe. The lower part of the spray device is equipped with a dust collection hood, and the lower part of the dust collection hood is a space for placing the quenching car. The upper part of the spray device is equipped with a flue gas baffle. The top of the quenching tower is equipped with a vacuum pipe, and a vacuum pump is installed on the vacuum pipe.

[0015] As a preferred embodiment, the dust removal device includes a cylinder, with a steam inlet and a drain outlet at the lower part of the cylinder, and an exhaust outlet at the upper part of the cylinder. A dust removal and purification device is installed inside the cylinder.

[0016] As a preferred embodiment, the dust removal and purification device employs at least one of a cyclone separator, a corrugated plate separator, and a louvered separator.

[0017] As a preferred embodiment, an inert gas inlet pipe is also provided on one side of the quenching tower.

[0018] As a preferred embodiment, a pressure gauge is provided on the top of the cylinder.

[0019] As a preferred embodiment, a safety valve interface is provided at the top of the cylinder.

[0020] This application removes dust and impurities from steam using a dust removal device, reducing emissions of pollutants such as dust and achieving steam purification. Two-stage condensation recovers condensate, reducing water consumption. Saturated demineralized water is introduced into the condensation unit to absorb heat generated by the quenching tower, producing low-pressure steam as a byproduct. This byproduct steam is then applied to other processes, reducing energy consumption and production costs. This application features a simple structure, low investment cost, convenient operation, and high safety and reliability. It achieves pollution-free and optimal resource utilization, efficiently recovering and utilizing the waste heat from the generated high-temperature steam, reducing energy waste. Water is reused, lowering production costs. This combination contributes to energy diversification and cleaner energy sources, aligning with global energy transition and environmental protection trends. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application;

[0022] Figure 2 This is a structural schematic diagram of Embodiment 2 of this application;

[0023] 1. Quenching tower; 2. Quenching water inlet pipe; 3. Inert gas inlet pipe; 4. Spraying device; 5. Dust hood; 6. Quenching car placement space; 7. Quenching car; 8. Flue gas baffle; 9. Vacuum pipe; 10. Vacuum pump; 11. Steam pipeline; 12. Dust removal device; 13. Steam inlet; 14. Shell; 15. Drain outlet; 16. Exhaust outlet; 17. Cyclone separator; 18. Corrugated plate separator; 19. Pressure gauge; 20. Safety valve interface; 21. Exhaust pipeline; 22. Quenching tower tower 23. Reactor pipeline; 24. Primary condenser; 25. Secondary condenser; 26. Primary vapor phase separator; 27. Secondary vapor phase separator; 28. Primary condenser output pipeline; 29. ​​Cooling medium inlet 1; 30. Cooling medium outlet 1; 31. Vapor phase pipeline 1; 32. Secondary condenser output pipeline; 33. Cooling medium inlet 2; 34. Cooling medium outlet 2; 35. Non-condensable gas extraction pipeline; 36. Circulating water pipeline; 37. Condensate storage tank; 38. Quenching tower 1; 39. Quenching tower 2. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 Appendix Figure 2 The specific embodiments of this utility model will be described in detail below. It should be noted that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model. Example 1

[0025] This embodiment provides a coke heat utilization device, including a quenching tower 1. One side of the quenching tower 1 is connected to a quenching water inlet pipe 2 and an inert gas inlet pipe 3. The quenching water inlet pipe 2 is used to introduce quenching water, and the inert gas inlet pipe 3 is used to introduce an inert gas, such as He, Ar, or N2. This embodiment uses N2 as an example. The quenching tower 1 is equipped with a spray device 4 connected to the quenching water inlet pipe 2. A dust collection hood 5 is installed at the lower part of the spray device 4. The lower part of the dust collection hood 5 is a quenching car placement space 6, which is used to place the quenching car 7. Car 7 is used to push out coke from the coking chamber of the coke oven. The coke is not limited to red coke, but can also be other medium and low temperature coal pyrolysis carbon sources. The upper part of the spray device 4 is equipped with a flue gas baffle 8, and the top of the quenching tower 1 is equipped with a vacuum pipe 9, and a vacuum pump 10 is installed on the vacuum pipe 9. Since the quenching water vapor contains H2 and CO, which are flammable and explosive, the air in the quenching tower 1 can be replaced with N2 before the quenching tower 1 is started. The air in the quenching tower 1 is then sucked out by the vacuum pump 10. This process is repeated multiple times to remove the air from the quenching tower 1, prevent quenching oxidation, and eliminate the risk of explosion. The safety factor is high.

[0026] The upper part of the quenching tower 1 is connected to the steam inlet 13 of the dust removal device 12 via a steam pipeline 11. The crude steam generated by the quenching tower 1 enters the dust removal device 12 for dust removal through the steam pipeline 11. Based on the characteristics of wet quenching, such as a high proportion of large particles, high humidity, and numerous impurities in the steam, the dust removal device 12 purifies the steam, removing large and small dust particles, dust, impurities, ammonia nitrogen, phenol, sulfur, and other pollutants, thereby reducing the emission of dust and other pollutants. The dust removal device 12 includes a cylinder 14, with a steam inlet 13 and a drain outlet 15 at the lower part of the cylinder 14. The dust removal device 12 intermittently discharges the separated dust particles and other sediments from the drain outlet 15. An exhaust port 16 is provided at the upper part of the cylinder 14, and there is at least one exhaust port 16. In this embodiment, for example… Figure 1As shown, taking three as an example, the cylinder 14 is equipped with dust removal devices such as a cyclone separator 17, a corrugated plate separator 18, and a louver separator, which can clean the steam introduced by the steam inlet 13, thus achieving the above-mentioned dust removal and purification effect. In this embodiment, the cyclone separator 17 and the corrugated plate separator 18 are arranged sequentially from bottom to top along the cylinder 14. Preferably, in order to ensure the safety of the dust removal device 12, a pressure gauge 19 and a safety valve interface 20 are provided at the top of the cylinder 14. The safety valve interface 20 is used to install a safety valve. The cooperation between the safety valve and the pressure gauge 19 can provide overpressure protection for the dust removal, prevent excessive pressure from causing equipment damage, maintain system stability, and prevent excessive pressure from causing explosions that could result in casualties.

[0027] The exhaust port 16 of the dust removal device 12 is connected to the condensing device via the exhaust pipeline 21. The condensing device is connected to the gas-liquid phase separation device. The circulating water pipeline 36 connected to the bottom of the gas-liquid phase separation device is connected to the quenching water inlet pipeline 2. The water condensed by the condensing device is recycled back into the quenching tower 1 for reuse, achieving water conservation. Preferably, to further achieve water conservation, the bottom of the quenching tower 1 is connected to the quenching water inlet pipeline 22 via the quenching tower bottom pipeline 22. The water discharged from the bottom of the quenching tower 1 is recycled back into the quenching tower 1 for reuse, achieving water conservation. More preferably, in this embodiment, a two-stage condensing system is configured. The condensing device includes a primary condenser 23 and a secondary condenser 24, and the gas-liquid phase separation device includes a primary gas phase separator 2. 5. A secondary vapor phase separator 26; wherein, the exhaust port 16 is connected to the input end of the primary condenser 23 via the exhaust pipeline 21, and the output end of the primary condenser 23 is connected to the inlet of the primary vapor phase separator 25 via the primary condenser output pipeline 27. The primary condenser 23 is provided with a cooling medium inlet 28 and a cooling medium outlet 29. The cooling medium inlet 28 is filled with demineralized water at about 150 degrees Celsius, and the cooling medium outlet 29 outputs low-pressure saturated steam. Demineralized water at 150 degrees Celsius is introduced into the primary condenser 23 to exchange heat with the steam, condensing the saturated or near-saturated steam to remove water from the steam and reduce the steam humidity. The demineralized water absorbs heat and evaporates, and the heat carried out by the quenching water vapor is released. The process involves recycling, generating clean, low-pressure steam, which is then used for steam consumption in other processes, reducing energy consumption and production costs. The top of the primary vapor phase separator 25 is connected to the input end of the secondary condenser 24 via a vapor phase pipeline 30. The output end of the secondary condenser 24 is connected to the inlet of the secondary vapor phase separator 26 via a secondary condenser output pipeline 32. The secondary condenser 24 is equipped with a second cooling medium inlet 33 and a second cooling medium outlet 34. The second cooling medium inlet 33 is supplied with circulating cooling water, and the second cooling medium outlet 34 is supplied with circulating cooling water. The cooling medium for the secondary condenser 24 is circulating water. The top of the secondary vapor phase separator 26 is connected to a non-condensable gas extraction pipeline 35. In this embodiment, the steam is first processed... The steam undergoes dust removal to remove impurities from the quenching steam. Then, the two-stage condensation of the primary condenser 23 and the secondary condenser 24 removes water from the quenching steam, reducing the impurities and water content in the non-condensable gas discharged from the non-condensable gas extraction pipeline 35. This improves the purity of H2 and CO, facilitating the subsequent separation of H2 and CO for methanol production. The bottoms of the primary gas phase separator 25 and the secondary gas phase separator 26 are connected to the quenching water inlet pipeline 2 via a circulating water pipeline 36. Preferably, a condensate storage tank 37 is installed on the circulating water pipeline 36. After primary condensation, the condensate is connected to the secondary condenser 24. With the help of the liquid level control device in the prior art, the condensed water is continuously extracted and can be returned to the quenching tower 1 for reuse, saving water consumption.More specifically, the quenching tower bottom pipeline 22 at the bottom of the quenching tower 1 is connected to the circulating water pipeline 36; the quenching tower 1 can also be directly connected to the quenching water inlet pipeline 2 via the quenching tower bottom pipeline 22. Technicians can choose the appropriate connection based on specific circumstances; no specific connection is specified.

[0028] In this embodiment, the quenching tower 1 needs to be sealed and pressurized during operation. During the water spray quenching process, the pressure inside the quenching tower 1 is adjusted by controlling the non-condensable gas emission rate and the water spray rate through an interlock, so that the temperature of the crude steam generated during quenching is maintained between 170-200℃.

[0029] The working principle of this embodiment is as follows: Hot coke at 1100℃, pushed from the coke oven carbonization chamber, is pushed into the coke quenching car placement space 6 inside the coke quenching tower 1 via the coke quenching car 7, and then the coke quenching tower 1 is sealed. Before starting the machine, N2 is introduced into the coke quenching tower 1 to replace the air inside, and then a vacuum pump 10 is used to evacuate the air from the coke quenching tower 1. After the vacuum is completed, the machine is officially started, and quenching water is sprayed onto the hot coke. The generated high-temperature steam passes through the dust hood 5 and the flue gas baffle 8 in sequence, and then enters the dust removal device 12 for purification and dust removal. The water collected from the coke quenching tower 1 can also be returned to the spray nozzle for reuse. After dust removal, the water enters the primary condenser 23, where it is condensed by heat exchange with the demineralized water and then enters the primary gas phase separator 25. The liquid phase is collected as condensate. The gas phase enters the secondary condenser 24, and after being condensed again by circulating cooling water, it enters the secondary gas phase separator 26 for dehydration. Non-condensable gases (H2, CO, etc.) are extracted from the top of the secondary gas phase separator 26 through the non-condensable gas extraction pipeline 35. The generated low-temperature non-condensable gases can enter the subsequent separation and purification section for methanol production. The liquid phase extracted from the secondary gas phase separator 26 and the liquid phase extracted from the primary gas phase separator 25 enter the condensate storage tank 37. The water condensed twice is buffered in the condensate storage tank 37 and can be returned to the quenching tower 1 for reuse. The demineralized water absorbs the heat of the crude steam in the primary condenser 23 and evaporates to obtain clean low-pressure steam, which can be used to provide heat for other sections. Dust particles and other impurities removed by the dust removal device 12 are periodically discharged from the drain outlet 15.

[0030] According to the research data, the relationship between the instantaneous specific heat capacity of coke and temperature (T, K) in the range of 0–1000℃ can be determined by the following formula: c =0.836 + 1.53 × 10 -3 (T-273)-5.4×10 -7 (T-273) 2 The latent heat of vaporization of saturated water at 200℃ is 1939 kJ / kg, and the latent heat of vaporization of saturated water at 150℃ is 2114.1 kJ / kg.

[0031] During the initial startup, 175°C quenching water is sprayed onto 1 ton of red coke. The temperature of the red coke drops from 1100°C to 300°C. All the sprayed quenching water vaporizes, generating 200°C steam. This steam passes through dust hood 5 and flue gas baffle 8 before entering dust removal device 12. After purification and dust removal, the steam loses approximately 5% of its heat. It then enters the primary condenser and condenses in the demineralized water heat exchange section. The 150°C demineralized water absorbs heat to generate 150°C low-pressure steam. The heat released as the temperature of the 1 ton of red coke drops from 1100°C to 300°C is calculated according to the formula... The calculated value is 1.29 × 10⁻⁶. 6 It takes approximately 2.04 × 10 kJ of quenching water (at 175℃) to vaporize into pressurized water vapor at 200℃. 6 The heat output is kJ, so 1 ton of red coke can generate approximately 0.632 ton of 200°C pressurized saturated crude steam. This steam carries dust and impurities, and after dust removal and purification, 5% of the heat is consumed, and 10% of the heat is consumed in the secondary condenser. 85% of the heat from all the crude steam is used to vaporize 150°C demineralized water. The calculated heat can vaporize 493 kg of demineralized water. That is, this embodiment can be used to produce low-pressure clean steam. Each ton of red coke can produce 0.493 ton of 150°C low-pressure clean steam. By adjusting the temperature and flow rate settings at each stage, saturated steam at other temperatures can also be produced using the waste heat from coke quenching for heating.

[0032] This embodiment modifies the wet quenching device to realize the utilization of hot coke energy and generate low-pressure steam, reducing energy waste and effectively reducing dust emissions. It also shows significant water-saving and de-whitening effects. With minor modifications to the original quenching equipment, it can achieve the effects of recovering heat by-product steam and recycling condensate. Another embodiment removes water from the steam through a dust removal device and two-stage condensation, and recycles the condensate, achieving water-saving, emission-reduction, energy-saving, and consumption-reducing effects. It has a simple structure, low investment cost, convenient operation, safety and reliability, and can achieve pollution-free and optimal resource utilization. Example 2

[0033] The difference between this embodiment and Embodiment 1 is that the quenching tower 1 in this application is provided in two sets, and the gas phase outlet of the quenching tower 1 can be switched to ensure the continuity and stability of steam production.

[0034] Specifically, such as Figure 2As shown, a coke heat utilization device includes a coke quenching tower 38 and a coke quenching tower 39. The structures of the coke quenching tower 38 and the coke quenching tower 39 are the same as those of the coke quenching tower 1. The different descriptions are to distinguish different positional relationships and quantities. The coke quenching tower 38 and the coke quenching tower 39 are respectively connected to the steam inlet 13 of the dust removal device 12 via steam pipeline 11. The bottoms of the primary gas phase separator 25 and the secondary gas phase separator 26 are connected to the coke quenching water inlet pipe 2 via circulating water pipeline 36. The coke quenching tower 38 and the coke quenching tower 39 are respectively connected to the circulating water pipeline 36 via the coke quenching tower bottom pipeline 22. The coke quenching tower 38 and the coke quenching tower 39 can also be directly connected to the coke quenching water inlet pipe 2 via the coke quenching tower bottom pipeline 22. Technicians can choose according to specific circumstances. This application does not make specific limitations. The remaining structures are the same as those in the above embodiment 1, and will not be described in detail here.

[0035] In summary, due to the adoption of the above technical solution, this application has the following advantages:

[0036] 1. The high-temperature steam waste heat generated is efficiently recovered and utilized, reducing energy waste and water reuse, thus lowering production costs; this combination helps to achieve energy diversification and clean energy, which is in line with the global trend of energy transition and environmental protection.

[0037] 2. This application reduces the emission of dust and other pollutants by using a dust removal device to remove dust and impurities from steam;

[0038] 3. Through two-stage condensation, water in the steam is removed and recycled, achieving water-saving, energy-saving, and consumption-reducing effects;

[0039] 4. This device achieves water conservation and emission reduction through dust removal and two-stage condensation. It has a simple structure, low investment cost, convenient operation, safety and reliability, and can achieve pollution-free and optimal resource utilization.

[0040] 5. Before starting the machine, nitrogen is used to replace and vacuum the air in the quenching tower. At the same time, wet dust removal is used to eliminate the risk of explosion during H2 operation, resulting in a high safety factor.

[0041] 6. The demineralized water absorbs heat and is converted into low-pressure steam, which is then used for steam consumption in other processes, reducing production costs.

[0042] 7. This application, with minor modifications to the existing coke quenching equipment, can achieve the effects of recovering heat and generating by-product steam, and recycling condensate, thereby reducing energy waste while ensuring low equipment modification costs.

[0043] The quenching water inlet pipe, inert gas inlet pipe, vacuum pipe, steam pipeline, drain outlet, exhaust outlet, and other pipes and interfaces of this application are equipped with corresponding valves according to specific requirements, which are conventional prior art and will not be described in detail here.

[0044] The preferred embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solution of this application, and these simple modifications all fall within the protection scope of this application.

[0045] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, the various possible combinations in this application will not be described separately.

[0046] Furthermore, various different implementations of this application can be combined in any way, as long as they do not violate the spirit of this application, and such combinations should also be regarded as the content disclosed in this application.

Claims

1. A coke heat utilization apparatus comprising a quenching tower (1), a quenching water inlet pipe (2) being connected to one side of the quenching tower (1), characterized in that, The upper part of the coke quenching tower (1) is connected with the steam inlet (13) of the dust removal device (12), the exhaust port (16) of the dust removal device (12) is connected with the condensing device, the condensing device is connected with the gas-liquid phase separation device, and the bottom of the gas-liquid phase separation device is connected with the circulating water pipeline (36) and is connected into the coke quenching water inlet pipeline (2).

2. The coke heat utilization device according to claim 1, characterized by The bottom of the coke quenching tower (1) is connected with the coke quenching tower kettle pipeline (22) and is connected into the coke quenching water inlet pipeline (2).

3. The coke heat utilization device according to claim 1, characterized by The condensing device comprises a first condenser (23) and a second condenser (24), and the gas-liquid phase separation device comprises a first gas phase separation tank (25) and a second gas phase separation tank (26); wherein the exhaust port (16) of the dust removal device (12) is connected with the input end of the first condenser (23), the output end of the first condenser (23) is connected with the feed inlet of the first gas phase separation tank (25), the top of the first gas phase separation tank (25) is connected with the input end of the second condenser (24), the output end of the second condenser (24) is connected with the feed inlet of the second gas phase separation tank (26), and the top of the second gas phase separation tank (26) is connected with the non-condensable gas extraction pipeline (35); the bottoms of the first gas phase separation tank (25) and the second gas phase separation tank (26) are connected with the circulating water pipeline (36) respectively.

4. The coke heat utilization device according to claim 3, characterized by The bottoms of the first gas phase separation tank (25) and the second gas phase separation tank (26) are provided with the condensate water storage tank (37) between the condensate water storage tank (37) and the coke quenching water inlet pipeline (2).

5. The coke heat utilization device according to claim 3, characterized by The first condenser (23) is provided with a cooling medium input port one (28) and a cooling medium output port one (29).

6. The coke heat utilization device according to claim 5, characterized by The cooling medium input port one (28) is connected with brine, and the cooling medium output port one (29) outputs low-pressure steam.

7. The coke heat utilization device according to claim 3, characterized by The second condenser (24) is provided with a cooling medium input port two (33) and a cooling medium output port two (34).

8. The coke heat utilization device according to claim 7, characterized by The cooling medium input port two (33) is connected with circulating cooling upper water, and the cooling medium output port two (34) outputs circulating cooling lower water.

9. The coke heat utilization apparatus according to claim 1, characterized by The coke quenching tower (1) is provided with a spraying device (4) in communication with the coke quenching water inlet pipeline (2), the lower part of the spraying device (4) is provided with a dust collecting cover (5), the lower part of the dust collecting cover (5) is a coke quenching car placing space (6), the upper part of the spraying device (4) is provided with a flue gas baffle (8), the top of the coke quenching tower (1) is provided with a vacuum pipeline (9), and the vacuum pipeline (9) is provided with a vacuum pump (10).

10. The coke heat utilization device according to claim 1, characterized by The dust removal device (12) comprises a cylinder body (14), the lower part of the cylinder body (14) is provided with a steam inlet (13) and a blowdown port (15), the upper part of the cylinder body (14) is provided with an exhaust port (16), and the cylinder body (14) is provided with a dust removal and purification device.

Images