Coke dry quenching boiler continuous blow-down water cooling system

Abstract

The utility model belongs to the technical field of dry quenching boilers, discloses a continuous sewage discharging and cooling system of a dry quenching boiler, and aims to solve the problems in the background technology, the following scheme is provided: the continuous sewage discharging and cooling system comprises a filtering tank body, a filtering assembly is arranged in the filtering tank body, and the filtering assembly comprises a sealing cover plate fixed on the filtering tank body; a servo motor is mounted at the axis of the top of the sealing cover plate, and an output shaft of the servo motor is connected with a stirring blade. High-temperature sewage is conveyed in a U-shaped path, and in the flowing process of external cooling water, the cooling water can flow in an S-shaped path to exchange heat to the greatest extent in cooperation with the externally-arranged flow dividing partition plate, so that the heat exchange time can be greatly prolonged, and the heat exchange efficiency can be greatly improved; and the temperature sensor is installed at the water outlet for real-time temperature detection feedback, when the temperature is unqualified, the auxiliary heating assembly is started for heating treatment, the water outlet temperature can be increased to the maximum extent, energy can be saved to the maximum extent, and therefore resources can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of dry coke quenching boilers, in particular to a continuous sewage cooling system for dry coke quenching boilers. Background Art

[0002] In the thermal system of CDQ boiler, whether the boiler feed water index meets the standard is one of the important factors to ensure the safe and stable operation of the boiler. If the boiler feed water index cannot meet the national standard, the quality of the steam produced by the boiler cannot be guaranteed, and it may also cause corrosion and scaling of the pipeline, thus affecting the safe operation of the boiler. Although the boiler feed water quality has met the standard, the feed water will eventually enter the drum. Since some impurities are taken away by steam in the evaporation section of the boiler, most of the impurities will remain in the boiler water, causing the salt concentration of the boiler water to continue to increase, thereby affecting the steam quality and corroding the steam-water pipeline and heat exchange surface. Therefore, the salt content of the boiler water must be maintained at a certain level, and the boiler sewage system is used to discharge the boiler water with high salt content near the drum water level to ensure the stable operation of the boiler. The boiler sewage system is divided into a continuous sewage system and a periodic sewage system. The continuous sewage system is to continuously discharge the boiler water with high salt content in the drum to the continuous sewage expansion device, and the periodic sewage expansion device is to periodically discharge the boiler and discharge the impurities in the steam-water pipeline to the periodic sewage expansion device.

[0003] The blowdown of CDQ boiler is mainly continuous blowdown. At present, the continuous blowdown of CDQ boiler enters the continuous blowdown expander for flash evaporation, and the secondary steam generated is used for deoxygenation in the deaerator. The remaining saturated water enters the periodic blowdown expander. The secondary steam generated by the periodic blowdown expander is directly discharged into the atmosphere, and the remaining continuous blowdown together with the periodic blowdown is discharged into the blowdown well to cool down with industrial water. The greater the evaporation volume of CDQ boilers and the more units there are, the more industrial water is consumed in the blowdown. As a result, a large amount of water resources will be wasted for cooling. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a continuous sewage cooling system for a dry coke quenching boiler.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A continuous sewage cooling system for a dry coke quenching boiler comprises a filter tank body, a filter assembly is arranged inside the filter tank body, and the filter assembly comprises a sealing cover plate fixed on the filter tank body, a servo motor is installed at the top axis of the sealing cover plate, and the output shaft of the servo motor is connected with a stirring blade, a sewage inlet pipe is connected to the top of the inner wall of one side of the filter tank body, and a first support block and a second support block distributed in an annular manner are arranged in sequence on the inner wall of the filter tank body, a first annular clamping plate is arranged on the top of the first support block, and a first frustum filter screen is clamped on the inner wall of the first annular clamping plate, a second annular clamping plate is fixed above the second support block, and a second frustum filter screen is clamped and installed on the inner wall of the second annular clamping plate;

[0007] A connecting pipe is provided on the inner wall of one side of the bottom of the filter tank body, and one end of the connecting pipe away from the filter tank body is connected to a heat exchange cooling assembly, the heat exchange cooling assembly includes a liquid inlet pipe fixed on the connecting pipe, and the liquid inlet pipe is welded to the end sealing shell, a liquid discharge pipe is connected to the inner wall of one side of the top of the end sealing shell, and a rectangular heat exchange shell is fixed to one side of the end sealing shell by fastening bolts;

[0008] A tail sealing shell is fixed to an outer wall of one side of the rectangular heat exchange shell by bolts, and arc guide plates are welded to the top and bottom inner walls of the tail sealing shell. A water inlet pipe is connected to the inner wall of one end of the bottom of the rectangular heat exchange shell, and a drain pipe is connected to the top end of the rectangular heat exchange shell, and an auxiliary heating component is arranged on the top of the drain pipe.

[0009] Preferably, the first frustum filter screen is located directly above the second frustum filter screen, and the mesh diameter of the first frustum filter screen is larger than the mesh diameter of the second frustum filter screen.

[0010] Preferably, a first sewage pipe is connected to the bottom axis of the first frustum filter screen, and a first electrically controlled valve is fixed to the end of the first sewage pipe.

[0011] Preferably, the bottom axis of the second frustum filter is connected to a second sewage pipe, and the bottom of the second sewage pipe is connected to a second electrically controlled valve.

[0012] Preferably, a rectangular slot is provided on the inner wall at one end of the rectangular heat exchange shell, and a first sealing card plate is fixed to the inner wall of the rectangular slot, an outer wall on one side above the first sealing card plate is connected to a reflux pipe distributed at equal distances, and an outer wall on one side below the sealing card plate is connected to an infusion pipe distributed at equal distances.

[0013] Preferably, a liquid isolation plate is welded to the middle inner wall of the end sealing shell, and a positioning protrusion is provided on the outer wall of the liquid isolation plate. A positioning groove is opened on the middle outer wall of the first sealing card plate, and the size of the positioning groove is adapted to the size of the positioning protrusion.

[0014] Preferably, limiting blocks are welded at four corners of the inner wall of one side of the rectangular heat exchange shell, and the ends of the return pipe and the infusion pipe are connected to the second sealing card plate, and the outer wall size of the second sealing card plate is compatible with the inner wall size of the rectangular heat exchange shell.

[0015] Preferably, the outer walls of the reflux pipe and the infusion pipe are alternately provided with flow diversion baffles distributed at equal distances, and the length of the flow diversion baffles is adapted to the width of the rectangular heat exchange shell.

[0016] Preferably, the auxiliary heating component includes a temperature sensor arranged on the inner wall of the drain pipe, and the top of the drain pipe is connected to an auxiliary heating shell, and the inner wall around the auxiliary heating shell is annularly distributed with electric heating wires distributed at equal distances.

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

[0018] 1. The sewage cooling system of this design uses the deoxygenated feed water in the dry coke quenching boiler feed water system as the cooling water for the heat exchanger to cool the sewage in the continuous sewage expansion device of the dry coke quenching boiler, thereby reducing the amount of industrial water used for cooling. The cooled continuous sewage also has a certain cooling effect on the regular sewage. In addition, the amount of deoxygenated feed water entering the heat exchanger can be automatically adjusted according to the temperature of the continuous sewage after the heat exchanger to ensure the temperature after heat exchange.

[0019] 2. The sewage cooling system of this design, during the heat exchange cooling process, double-filters and stirs the high-temperature sewage, and uses centrifugal force to discharge the deposited impurities regularly. The filtered sewage is passed into the return pipe and the infusion pipe for a long time, which can reduce the blockage of internal scale and reduce the workload of later cleaning and maintenance.

[0020] 3. The sewage cooling system of this design transports high-temperature sewage in a U-shaped path, and in the process of external cooling water flow, cooperates with the external diversion baffle to allow the cooling water to flow in an S-shaped path to the greatest extent for heat exchange, thereby greatly improving the heat exchange time and heat exchange efficiency. A temperature sensor is installed at the water outlet for real-time temperature detection and feedback. When the temperature is unqualified, the auxiliary heating component is started for heating treatment, which can maximize the outlet water temperature and save energy, thereby saving resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view of the overall structure of a continuous sewage cooling system for a dry quenching boiler proposed by the utility model;

[0022] Figure 2 This is a side view of the overall structure of a continuous sewage cooling system for a dry quenching boiler proposed by the utility model;

[0023] Figure 3This is a schematic diagram of the split structure of a filter tank of a continuous sewage cooling system for a dry quenching boiler proposed by the utility model;

[0024] Figure 4 This is a schematic diagram of the split structure of a rectangular heat exchange shell of a continuous sewage cooling system for a dry coke quenching boiler proposed in the utility model;

[0025] Figure 5 This is a first-view structural schematic diagram of a continuous sewage cooling system for a dry coke quenching boiler proposed by the utility model;

[0026] Figure 6 This is a schematic diagram of the internal structure of a filter tank of a continuous sewage cooling system for a dry coke quenching boiler proposed in the utility model;

[0027] Figure 7 This is a cross-sectional view of the internal structure of a rectangular heat exchange shell of a continuous sewage discharge cooling system for a dry quenching boiler proposed by the utility model.

[0028] In the figure: 1, filter tank; 2, sealing cover; 3, servo motor; 4, stirring blade; 5, sewage inlet pipe; 6, first support block; 7, first annular clamping plate; 8, first cone filter screen; 9, first sewage discharge pipe; 10, first electric control valve; 11, second support block; 12, second annular clamping plate; 13, second cone filter screen; 14, second sewage discharge pipe; 15, second electric control valve; 16, liquid inlet pipe; 17, end seal Shell; 18, drain pipe; 19, partition plate; 20, rectangular heat exchange shell; 21, rectangular slot; 22, first sealing card plate; 23, reflux pipe; 24, infusion pipe; 25, second sealing card plate; 26, limit block; 27, tail sealing shell; 28, arc guide plate; 29, diversion partition; 30, water inlet pipe; 31, drain pipe; 32, temperature sensor; 33, auxiliary heating shell; 34, electric heating wire; 35, connecting pipe. DETAILED DESCRIPTION

[0029] 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.

[0030] Example 1, reference Figure 1-7 A continuous sewage cooling system for a dry quenching boiler comprises a filter tank 1, a filter assembly is arranged inside the filter tank 1, and the filter assembly comprises a sealing cover plate 2 fixed on the filter tank 1, a servo motor 3 is installed at the top axis of the sealing cover plate 2, and a stirring blade 4 is connected to the output shaft of the servo motor 3, a sewage inlet pipe 5 is connected to the top of the inner wall of one side of the filter tank 1, and the inner wall of the filter tank 1 is sequentially provided with a first support block 6 and a second support block 11 distributed in an annular shape;

[0031] A first annular clamping plate 7 is provided on the top of the first support block 6, and a first frustum filter screen 8 is clamped on the inner wall of the first annular clamping plate 7; a second annular clamping plate 12 is fixed on the top of the second support block 11, and a second frustum filter screen 13 is clamped and installed on the inner wall of the second annular clamping plate 12;

[0032] The first frustum filter screen 8 is located directly above the second frustum filter screen 13, and the mesh diameter of the first frustum filter screen 8 is larger than the mesh diameter of the second frustum filter screen 13. The bottom axis of the first frustum filter screen 8 is connected to a first sewage pipe 9, and a first electrically controlled valve 10 is fixed to the end of the first sewage pipe 9. The bottom axis of the second frustum filter screen 13 is connected to a second sewage pipe 14, and the bottom of the second sewage pipe 14 is connected to a second electrically controlled valve 15.

[0033] By using the deoxygenated feed water in the dry coke quenching boiler feed water system as the cooling water for the heat exchanger, the wastewater in the continuous wastewater expansion device of the dry coke quenching boiler is cooled, thereby reducing the amount of industrial water used for cooling. The cooled continuous wastewater also has a certain cooling effect on the regular wastewater. In addition, the amount of deoxygenated feed water entering the heat exchanger can be automatically adjusted according to the temperature of the continuous wastewater after the heat exchanger to ensure the temperature after heat exchange.

[0034] A rectangular slot 21 is formed on the inner wall of one end of the rectangular heat exchange shell 20, and a first sealing card plate 22 is fixedly connected to the inner wall of the rectangular slot 21. The outer wall on one side above the first sealing card plate 22 is connected to equidistantly distributed return pipes 23, and the outer wall on the lower side of the sealing card plate 22 is connected to equidistantly distributed infusion pipes 24.

[0035] A liquid partition plate 19 is welded to the middle inner wall of the end sealing shell 17, and a positioning protrusion is arranged on the outer wall of the liquid partition plate 19. A positioning groove is opened on the middle outer wall of the first sealing card plate 22, and the size of the positioning groove is adapted to the size of the positioning protrusion. Limiting blocks 26 are welded to the four corners of the inner wall of one side of the rectangular heat exchange shell 20, and the ends of the reflux pipe 23 and the infusion pipe 24 are connected to the second sealing card plate 25. The outer wall size of the second sealing card plate 25 is adapted to the inner wall size of the rectangular heat exchange shell 20.

[0036] A connecting pipe 35 is provided on the inner wall of one side of the bottom of the filter tank body 1, and one end of the connecting pipe 35 away from the filter tank body 1 is connected to a heat exchange cooling assembly, and the heat exchange cooling assembly includes a liquid inlet pipe 16 fixed on the connecting pipe 35, and the liquid inlet pipe 16 is welded to the end sealing shell 17, and a liquid discharge pipe 18 is connected to the inner wall of one side of the top of the end sealing shell 17, and a rectangular heat exchange shell 20 is fixed to one side of the end sealing shell 17 by fastening bolts;

[0037] A tail sealing shell 27 is fixed to the outer wall of one side of the rectangular heat exchange shell 20 by bolts, and arc guide plates 28 are welded to the top and bottom inner walls of the tail sealing shell 27. A water inlet pipe 30 is connected to the inner wall of one end of the bottom of the rectangular heat exchange shell 20, and a drain pipe 31 is connected to the top end of the rectangular heat exchange shell 20. A heat-assisting component is arranged on the top of the drain pipe 31.

[0038] The outer walls of the return pipe 23 and the infusion pipe 24 are alternately provided with equally spaced diverter baffles 29, and the length of the diverter baffles 29 is adapted to the width of the rectangular heat exchange shell 20. The auxiliary heating component includes a temperature sensor 32 arranged on the inner wall of the drain pipe 31, and the top of the drain pipe 31 is connected to an auxiliary heating shell 33, and the inner walls around the auxiliary heating shell 33 are annularly distributed with equally spaced electric heating wires 34.

[0039] Example 2, reference Figure 1-7 A continuous sewage cooling system for a dry quenching boiler comprises a filter tank 1, a filter assembly is arranged inside the filter tank 1, and the filter assembly comprises a sealing cover plate 2 fixed on the filter tank 1, a servo motor 3 is installed at the top axis of the sealing cover plate 2, and a stirring blade 4 is connected to the output shaft of the servo motor 3, a sewage inlet pipe 5 is connected to the top of the inner wall of one side of the filter tank 1, and the inner wall of the filter tank 1 is sequentially provided with a first support block 6 and a second support block 11 distributed in an annular shape;

[0040] A first annular clamping plate 7 is provided on the top of the first support block 6, and a first frustum filter screen 8 is clamped on the inner wall of the first annular clamping plate 7; a second annular clamping plate 12 is fixed on the top of the second support block 11, and a second frustum filter screen 13 is clamped and installed on the inner wall of the second annular clamping plate 12;

[0041] The first frustum filter screen 8 is located directly above the second frustum filter screen 13, and the mesh diameter of the first frustum filter screen 8 is larger than the mesh diameter of the second frustum filter screen 13. The bottom axis of the first frustum filter screen 8 is connected to a first sewage pipe 9, and a first electrically controlled valve 10 is fixed to the end of the first sewage pipe 9. The bottom axis of the second frustum filter screen 13 is connected to a second sewage pipe 14, and the bottom of the second sewage pipe 14 is connected to a second electrically controlled valve 15.

[0042] In the process of heat exchange and cooling, the high-temperature sewage is double-filtered and stirred, and the deposited impurities are discharged regularly by centrifugal force. The filtered sewage is passed into the return pipe 23 and the infusion pipe 24 for a long time, which can reduce the blockage of internal scale and reduce the workload of later cleaning and maintenance.

[0043] A rectangular slot 21 is formed on the inner wall of one end of the rectangular heat exchange shell 20, and a first sealing card plate 22 is fixedly connected to the inner wall of the rectangular slot 21. The outer wall on one side above the first sealing card plate 22 is connected to equidistantly distributed return pipes 23, and the outer wall on the lower side of the sealing card plate 22 is connected to equidistantly distributed infusion pipes 24.

[0044] A liquid partition plate 19 is welded to the middle inner wall of the end sealing shell 17, and a positioning protrusion is arranged on the outer wall of the liquid partition plate 19. A positioning groove is opened on the middle outer wall of the first sealing card plate 22, and the size of the positioning groove is adapted to the size of the positioning protrusion. Limiting blocks 26 are welded to the four corners of the inner wall of one side of the rectangular heat exchange shell 20, and the ends of the reflux pipe 23 and the infusion pipe 24 are connected to the second sealing card plate 25. The outer wall size of the second sealing card plate 25 is adapted to the inner wall size of the rectangular heat exchange shell 20.

[0045] A connecting pipe 35 is provided on the inner wall of one side of the bottom of the filter tank body 1, and one end of the connecting pipe 35 away from the filter tank body 1 is connected to a heat exchange cooling assembly, and the heat exchange cooling assembly includes a liquid inlet pipe 16 fixed on the connecting pipe 35, and the liquid inlet pipe 16 is welded to the end sealing shell 17, and a liquid discharge pipe 18 is connected to the inner wall of one side of the top of the end sealing shell 17, and a rectangular heat exchange shell 20 is fixed to one side of the end sealing shell 17 by fastening bolts;

[0046] By transporting the high-temperature sewage in a U-shaped path, and in the process of the external cooling water flowing, the externally arranged diverter baffle 29 can be used to allow the cooling water to flow in an S-shaped path to the greatest extent for heat exchange, thereby greatly improving the heat exchange time and heat exchange efficiency, and installing a temperature sensor 32 at the water outlet for real-time temperature detection feedback. When the temperature is unqualified, the auxiliary heating component is started for heating treatment, which can maximize the outlet water temperature and save energy, thereby saving resources;

[0047] A tail sealing shell 27 is fixed to the outer wall of one side of the rectangular heat exchange shell 20 by bolts, and arc guide plates 28 are welded to the top and bottom inner walls of the tail sealing shell 27. A water inlet pipe 30 is connected to the inner wall of one end of the bottom of the rectangular heat exchange shell 20, and a drain pipe 31 is connected to the top end of the rectangular heat exchange shell 20. A heat-assisting component is arranged on the top of the drain pipe 31.

[0048] The outer walls of the return pipe 23 and the infusion pipe 24 are alternately provided with equally spaced diverter baffles 29, and the length of the diverter baffles 29 is adapted to the width of the rectangular heat exchange shell 20. The auxiliary heating component includes a temperature sensor 32 arranged on the inner wall of the drain pipe 31, and the top of the drain pipe 31 is connected to an auxiliary heating shell 33, and the inner walls around the auxiliary heating shell 33 are annularly distributed with equally spaced electric heating wires 34.

[0049] When the continuous sewage cooling system of the dry quenching boiler is used, the first sealing card plate 22 fixed with the return pipe 23 and the liquid delivery pipe 24 is firstly installed in the interior of the rectangular heat exchange shell 20, and the end sealing shell 17 and the tail sealing shell 27 are used to assemble at both ends of the rectangular heat exchange shell 20, and a sealing gasket is set at the connection between the rectangular heat exchange shell 20 and the end sealing shell 17 and the tail sealing shell 27 for sealing treatment, and after assembly, the connecting pipe 35 is connected with the liquid inlet pipe 16 at the bottom, and then the sewage inlet pipe 5 is connected with the sewage discharged from the outside, so that the sewage returns to the interior of the filter tank 1, and the impurities contained in the sewage are discharged. The sewage will be filtered and intercepted by the first cone filter 8 and the second cone filter 13. The filtered sewage will enter the liquid inlet pipe 16, enter the rectangular heat exchange shell 20 through the liquid delivery pipe 24, and enter the tail sealing shell 27. After that, it will be discharged from the return pipe 23. The hot water will flow in a U shape. During the flow, the cold water to be heated will be discharged from the water inlet pipe 30. Due to the staggered distribution of the diversion baffles 29, the cooling water will flow in an S shape, which will not only greatly extend the flow time, but also increase the flow stroke, thereby greatly improving the heat exchange efficiency. The heated water will be directly discharged from the drain pipe 31.

[0050] After a long period of filtration, a lot of impurities will accumulate on the first cone filter 8 and the second cone filter 13. In order to reduce the clogging of the mesh, the servo motor 3 is started at this time, and the servo motor 3 is used to drive the stirring blade 4 to rotate, thereby driving the sewage to rotate, and using centrifugal force to drive the impurities to gather and settle at the bottom. At this time, the first electric control valve 10 and the second electric control valve 15 are opened regularly to discharge the impurities, thereby filtering the sewage, reducing the clogging of the inner wall of the reflux pipe 23 and the infusion pipe 24 in the later stage, and in the process of heat exchange, when the water temperature after heat exchange does not meet the required standard, it can be known from the temperature detected by the temperature sensor 32 at this time, and then the electric heating wire 34 is started to perform auxiliary heat treatment on the water body with insufficient temperature, which can not only maximize the heat exchange, but also ensure the water temperature in the later stage, which can achieve good heat exchange and save resources.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0053] 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 continuous wastewater cooling system for a dry coke quenching boiler, comprising a filter tank (1), characterized in that: A filter assembly is arranged inside the filter tank body (1), and the filter assembly comprises a sealing cover plate (2) fixed on the filter tank body (1), a servo motor (3) is installed at the top axis of the sealing cover plate (2), and the output shaft of the servo motor (3) is connected to a stirring blade (4), a sewage inlet pipe (5) is connected to the top of the inner wall of one side of the filter tank body (1), and the inner wall of the filter tank body (1) is sequentially provided with a first support block (6) and a second support block (11) distributed in an annular shape, a first annular clamping plate (7) is arranged on the top of the first support block (6), and a first frustum filter screen (8) is clamped on the inner wall of the first annular clamping plate (7), and a second annular clamping plate (12) is fixed above the second support block (11), and a second frustum filter screen (13) is clamped and installed on the inner wall of the second annular clamping plate (12); A connecting pipe (35) is provided on the inner wall of one side of the bottom of the filter tank body (1), and one end of the connecting pipe (35) away from the filter tank body (1) is connected to a heat exchange cooling assembly, the heat exchange cooling assembly comprises a liquid inlet pipe (16) fixed on the connecting pipe (35), and the liquid inlet pipe (16) is welded to the end sealing shell (17), a liquid discharge pipe (18) is connected to the inner wall of one side of the top of the end sealing shell (17), and a rectangular heat exchange shell (20) is fixed to one side of the end sealing shell (17) by fastening bolts; A tail sealing shell (27) is fixed to an outer wall of one side of the rectangular heat exchange shell (20) by means of bolts, and arc-shaped guide plates (28) are welded to the top and bottom inner walls of the tail sealing shell (27), a water inlet pipe (30) is connected to the inner wall of the bottom end of the rectangular heat exchange shell (20), and a drain pipe (31) is connected to the top end of the rectangular heat exchange shell (20), and an auxiliary heat component is arranged on the top of the drain pipe (31).

2. A continuous wastewater cooling system for a dry coke quenching boiler according to claim 1, characterized in that: The first frustum filter screen (8) is located directly above the second frustum filter screen (13), and the mesh diameter of the first frustum filter screen (8) is greater than the mesh diameter of the second frustum filter screen (13).

3. A continuous wastewater cooling system for a dry coke quenching boiler according to claim 2, characterized in that: The bottom axis of the first cone filter (8) is connected to a first sewage discharge pipe (9), and a first electrically controlled valve (10) is fixed to the end of the first sewage discharge pipe (9).

4. A continuous wastewater cooling system for a dry coke quenching boiler according to claim 3, characterized in that: The bottom axis of the second cone filter (13) is connected to a second sewage pipe (14), and the bottom of the second sewage pipe (14) is connected to a second electrically controlled valve (15).

5. The continuous wastewater cooling system for a dry coke quenching boiler according to claim 1 is characterized in that: A rectangular slot (21) is formed on the inner wall of one end of the rectangular heat exchange shell (20), and a first sealing card plate (22) is fixedly connected to the inner wall of the rectangular slot (21), and an outer wall on one side above the first sealing card plate (22) is connected to equidistantly distributed return pipes (23), and an outer wall on one side below the sealing card plate (22) is connected to equidistantly distributed infusion pipes (24).

6. A continuous wastewater cooling system for a dry coke quenching boiler according to claim 5, characterized in that: A liquid isolating plate (19) is welded to the middle inner wall of the end sealing shell (17), and a positioning protrusion is provided on the outer wall of the liquid isolating plate (19). A positioning groove is formed on the middle outer wall of the first sealing clamping plate (22), and the size of the positioning groove matches the size of the positioning protrusion.

7. A continuous wastewater cooling system for a dry coke quenching boiler according to claim 6, characterized in that: Limiting blocks (26) are welded to the four corners of the inner wall of one side of the rectangular heat exchange shell (20), and the ends of the return pipe (23) and the infusion pipe (24) are connected to the second sealing card plate (25), and the outer wall size of the second sealing card plate (25) is compatible with the inner wall size of the rectangular heat exchange shell (20).

8. A continuous wastewater cooling system for a dry coke quenching boiler according to claim 7, characterized in that: The outer walls of the return pipe (23) and the liquid delivery pipe (24) are alternately provided with flow dividing baffles (29) distributed at equal distances, and the length of the flow dividing baffles (29) is adapted to the width of the rectangular heat exchange shell (20).

9. A continuous wastewater cooling system for a dry coke quenching boiler according to claim 1, characterized in that: The auxiliary heating component comprises a temperature sensor (32) arranged on the inner wall of the drain pipe (31), and the top of the drain pipe (31) is connected to an auxiliary heating shell (33), and the inner wall around the auxiliary heating shell (33) is annularly distributed with electric heating wires (34) distributed at equal distances.

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