A waste heat recovery type electric pole steam curing equipment

Abstract

The present application relates to the technical field of electric pole maintenance, and discloses a waste heat recovery type electric pole steam curing equipment, which comprises a curing pool main body, a steam generator and a heat exchange water tank, a first blowdown groove is formed in the bottom side of the curing pool main body, a second blowdown groove is formed in the bottom of the first blowdown groove, and a flow guide pit is formed in the bottom of the curing pool main body. The heat exchange water tank is connected with a water outlet pipe and a waste heat pipe. The bottom of the curing pool main body is provided with a gas-liquid separation assembly and a steam distribution assembly. The gas-liquid separation assembly comprises a liquid discharge pipe, an exhaust pipe, a plug valve and a lifting floating ball. The steam distribution assembly comprises an equalizing inlet pipe, a steam nozzle, a fixed rotating shaft and a turbulence blade. The steam distribution assembly is used for converting steam into spiral airflow to heat the cement electric pole and prevent the sludge from solidifying. The first blowdown groove is used for building a gravity flow guide environment. The gas-liquid separation assembly is used for completing the pure mechanical separation of sludge and waste gas and the self-adaptive switching action.

Description

Technical Field

[0001] This invention relates to the field of pole maintenance technology, specifically to a waste heat recovery type steam maintenance device for poles. Background Technology

[0002] Existing steam curing equipment injects steam in a straight line into the curing tank. This straight-line steam causes localized overheating and fails to fully coat the cement poles, resulting in uneven heating. Simultaneously, the steam condenses inside the curing tank and mixes with cement slurry seeping from the pole surface, forming suspended mud-water. The straight-line steam injection lacks airflow disturbance at the bottom of the curing tank, causing the suspended mud-water to remain stagnant and eventually solidify at the bottom.

[0003] The existing curing ponds have a relatively flat bottom design and lack gravity-guided flow structures. When suspended sludge drips to the bottom of the pond, it cannot collect under its own weight. Instead, it spreads and gradually settles on the flat bottom surface, eventually causing extensive sludge compaction at the bottom of the pond, increasing the difficulty of subsequent manual dredging.

[0004] During the heating process, the curing tank generates high-temperature waste gas and boiling hot suspended sludge. Before implementing heat recovery, these components need to be separated. Current separation methods rely on electronic level sensors to control the switching between the water and air extraction valves. However, the curing tank operates in a high-temperature and high-humidity environment, making the electronic level sensors highly susceptible to moisture-induced short-circuit failures. This can paralyze the extraction and separation system, preventing the independent separation of the high-temperature waste gas and boiling hot suspended sludge, and hindering the normal operation of the heat recovery process. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a waste heat recovery type steam curing device for utility poles, which solves the problems of uneven steam distribution inside existing equipment, solidification and caking of mud at the bottom of the pool, and difficulty in separating and collecting waste gas and waste liquid.

[0006] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a waste heat recovery type steam curing device for utility poles, including a curing tank body, a steam generator and a heat exchange water tank. A first drain trough is provided on the bottom side of the interior of the curing tank body, a second drain trough is provided at the bottom of the first drain trough, and two guide pits are provided at the bottom of the curing tank body. A waste heat pipe is connected to a flange on one side of the top of the heat exchange water tank, and a water outlet pipe is connected to a flange on the top of the heat exchange water tank. The steam generator and the heat exchange water tank are connected through the water outlet pipe, and a steam delivery pipe is connected to a flange on the top of the steam generator. The bottom of the curing tank body is equipped with a gas-liquid separation component, which includes a drain pipe and an exhaust pipe. One end of the drain pipe is located in the second sewage trough, and the other end of the drain pipe passes through one side of the curing tank body and is connected to the waste heat pipe. The exhaust pipe is located inside the curing tank body. At the bottom of the curing tank body, located at the position of the first sewage trough, multiple sets of steam distribution components are provided. The steam distribution components include a pressure equalization steam inlet pipe, which is connected to the steam delivery pipe.

[0007] Preferably, one end of the exhaust pipe is located inside the first sewage trough, and the other end of the exhaust pipe passes through one side of the main body of the curing tank and is connected to the drain pipe. Both the drain pipe and the exhaust pipe are equipped with a gate valve at their ends inside the main body of the curing tank.

[0008] Preferably, a connecting rod is fixedly connected between the movable valve plates of the two slide gate valves, and two connecting plates are fixedly connected to the bottom of the connecting rod, with a lifting float installed at the bottom of the connecting plate.

[0009] Preferably, the lifting float is disposed in the diversion pit, the slide valve at the bottom is disposed in the second sewage discharge trough, a limiting plate is slidably connected to the outside of the connecting rod, and the limiting plate is installed inside the main body of the maintenance pool.

[0010] Preferably, the pressure equalization steam inlet pipe is installed inside the first sewage discharge trough, and the surface of the pressure equalization steam inlet pipe is provided with multiple steam nozzles. The bottom of the main body of the curing tank is fixedly connected to multiple fixed rotating shafts on the surface of the first sewage discharge trough.

[0011] Preferably, a baffle blade is rotatably connected to the side of the fixed rotating shaft away from the surface of the first sewage tank, and two graphite bearings are provided between the baffle blade and the fixed rotating shaft, with the steam injection direction of the steam nozzle facing the upper part of the baffle blade.

[0012] Preferably, the first drain trough is semi-circular, the second drain trough and the guide pit are both inclined, and the second drain trough and the guide pit converge towards the drain pipe.

[0013] Preferably, the surface of the main body of the maintenance pool is provided with multiple guardrails, and multiple supporting sleepers are fixedly connected inside the main body of the maintenance pool, with the supporting sleepers located above the first sewage discharge trough.

[0014] Preferably, a waste discharge pipe is connected to a flange on one side of the bottom of the heat exchange water tank, and a water inlet pipe is connected to a flange on the other side of the bottom of the heat exchange water tank.

[0015] Preferably, the top of the curing pool body is provided with a sealing top cover, the protruding part of the top of the curing pool body corresponds to the bottom recess of the sealing top cover, the bottom recess of the sealing top cover is larger than the protruding part of the top of the curing pool body, and the top of the sealing top cover is provided with two sets of cover plate lifting lugs, the two sets of cover plate lifting lugs having different shapes.

[0016] This invention provides a waste heat recovery type steam curing device for utility poles. It has the following beneficial effects: 1. This invention provides a steam distribution component inside the curing tank. The straight steam jets ejected from the nozzles eccentrically impact the baffle blades, causing the baffle blades to rotate spontaneously. The high-speed rotating baffle blades forcibly break up the straight steam jets and transform them into an upward spiraling steam jet. This ensures that the spiraling steam jets envelop and heat the cement poles supported above. At the same time, the rotation of the baffle blades generates a continuous airflow disturbance at the bottom of the first sewage trough, preventing the falling suspended sludge from solidifying at the bottom of the curing tank.

[0017] 2. This invention involves creating a first and a second drainage trough at the bottom of the main body of the curing tank. The semi-circular bottom of the first drainage trough gathers the dripping cement slurry towards the center line area. The second drainage trough is located at the lowest center line of the first drainage trough and is set at an angle. The first and second drainage troughs work together to create a pure gravity-guided flow environment, forcing the unconsolidated suspended mud and water to slide down the slope at an accelerated speed into the drain pipe for extraction, thus avoiding large-area sedimentation of suspended mud and water and forming a dredging channel to prevent mud slurry from hardening.

[0018] 3. This invention uses a gas-liquid separation component to utilize the rise and fall of the accumulated suspended sludge water level to cause the lifting float to move up and down. The lifting float, in conjunction with the connecting rod, synchronously controls the opening and closing states of two slide valves inside the drain pipe and exhaust pipe, completing a purely mechanical adaptive switching action between water-assisted sludge water extraction and waterless exhaust gas extraction. The separated high-temperature exhaust gas and boiling hot suspended sludge water are uniformly introduced into the waste heat pipe to complete the pre-heat recovery step. The entire operation process is controlled without the participation of electronic components, avoiding damage to electronic components due to moisture in high-temperature and high-humidity environments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective; Figure 3 This is a cross-sectional view of the internal structure of the maintenance pool of the present invention; Figure 4 This is a schematic diagram of the equipment pipeline connection structure of the present invention; Figure 5 This is a cross-sectional view of the bottom part of the main body of the maintenance pool of the present invention; Figure 6 This is a schematic diagram of the gas-liquid separation component installation structure of the present invention; Figure 7 This is a partial structural diagram of the gas-liquid separation component of the present invention; Figure 8 This is a schematic diagram of the spoiler blade installation structure of the present invention.

[0020] The components include: 1. Main body of the curing tank; 2. Steam generator; 3. Heat exchange water tank; 4. Guardrail; 5. Supporting sleepers; 6. Sealed top cover; 7. Cover plate lifting lugs; 8. Waste heat pipe; 9. Waste discharge pipe; 10. Inlet pipe; 11. Outlet pipe; 12. Steam conveying pipe; 13. First sewage discharge trough; 14. Second sewage discharge trough; 15. Guide pit; 16. Gas-liquid separation assembly; 161. Drain pipe; 162. Exhaust pipe; 163. Slide valve; 164. Lifting float; 165. Connecting plate; 166. Connecting rod; 167. Limiting plate; 17. Steam distribution assembly; 171. Pressure equalizing steam inlet pipe; 172. Steam nozzle; 173. Turbulence blades; 174. Fixed rotating shaft; 175. Graphite bearing. Detailed Implementation

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] See attached document Figure 1 Appendix Figure 3 and attached Figure 6 The present invention provides a waste heat recovery type steam curing equipment for electric poles, including a curing tank body 1, a steam generator 2 and a heat exchange water tank 3. A first sewage trough 13 is provided on the bottom side inside the curing tank body 1, a second sewage trough 14 is provided at the bottom of the first sewage trough 13, and two guide pits 15 are provided at the bottom of the curing tank body 1.

[0023] Specifically, the curing tank body 1 serves as a sealed heating space to house cement poles. The high-temperature exhaust gas and condensed mud water generated inside the curing tank body 1 need to be separated and collected. The first drainage trough 13 provides a uniform collection surface, the second drainage trough 14 is located at the lowest center line of the first drainage trough 13, and guide pits 15 are respectively arranged at one end along the length of the curing tank body 1. The first drainage trough 13 and the second drainage trough 14, together with the guide pits 15, create a purely gravity-driven flow environment, allowing the condensed water containing cement slurry to flow naturally towards the guide pits 15 under gravity, preventing large-scale deposition and hardening of cement slurry at the bottom of the curing tank body 1.

[0024] See attached document Figure 1 Appendix Figure 2 and attached Figure 4 Waste heat pipe 8 is connected to a flange on one side of the top of heat exchange water tank 3. Water outlet pipe 11 is connected to a flange on the top of heat exchange water tank 3. Steam generator 2 and heat exchange water tank 3 are connected through water outlet pipe 11. Steam delivery pipe 12 is connected to a flange on the top of steam generator 2.

[0025] Specifically, the waste heat pipe 8 is responsible for introducing the waste steam and high-temperature mud water extracted from the main body 1 of the curing tank into the closed inner tank of the heat exchange water tank 3. The outlet pipe 11 connects the outer water jacket of the heat exchange water tank 3 with the water inlet of the steam generator 2. The heat exchange water tank 3 is in a pipeline isolation state. The heat of the high-temperature mud water is transferred to the pure cold water in the outer water jacket through the inner tank wall. The pure hot water, after absorbing waste heat and heating up, enters the steam generator 2 through the outlet pipe 11 for secondary heating. The steam generator 2 converts the pure hot water into high-pressure pure steam. The high-pressure pure steam is discharged back into the main body 1 of the curing tank through the steam delivery pipe 12, completing the closed-loop energy cycle.

[0026] See attached document Figure 3 Appendix Figure 4 and attached Figure 6 The bottom of the curing tank body 1 is provided with a gas-liquid separation component 16. The gas-liquid separation component 16 includes a drain pipe 161 and an exhaust pipe 162. One end of the drain pipe 161 is located in the second sewage trough 14, and the other end of the drain pipe 161 passes through one side of the curing tank body 1 and is connected to the waste heat pipe 8. The exhaust pipe 162 is located inside the curing tank body 1. At the bottom of the curing tank body 1, located at the position of the first sewage trough 13, multiple sets of steam distribution components 17 are provided. The steam distribution component 17 includes a pressure equalization steam inlet pipe 171, which is connected to the steam delivery pipe 12.

[0027] Specifically, the gas-liquid separation component 16 is fixed at one corner of the curing tank body 1, and the extraction port of the drain pipe 161 is close to the bottom of the second sewage tank 14 to ensure continuous extraction of liquid slurry. A high-temperature resistant power pump is installed on the outside of the waste heat pipe 8 to provide power for pipeline extraction. Multiple sets of steam distribution components 17 are equidistantly arrayed along the length of the curing tank body 1. The pressure equalization steam inlet pipe 171 receives high-pressure pure steam transmitted by the steam delivery pipe 12. The internal diameter of the pressure equalization steam inlet pipe 171 is larger than the diameter of the steam delivery pipe 12. After the high-pressure pure steam forms a stable pressure chamber inside the pressure equalization steam inlet pipe 171, it is then evenly released outward to avoid uneven heating at the front and rear ends inside the curing tank body 1.

[0028] See attached document Figure 6 and attached Figure 7One end of the exhaust pipe 162 is located in the first sewage trough 13, and the other end of the exhaust pipe 162 passes through one side of the main body 1 of the curing pool and is connected to the drain pipe 161. Both the drain pipe 161 and the exhaust pipe 162 are equipped with a gate valve 163 at one end inside the main body 1 of the curing pool.

[0029] Specifically, the extraction port height of the exhaust pipe 162 is higher than that of the drainage pipe 161, and the exhaust pipe 162 is responsible for extracting the waste steam floating in the space above the first sewage tank 13. The slide valve 163 is a mechanical sliding opening component, and the two slide valves 163 independently control the internal flow state of the drainage pipe 161 and the exhaust pipe 162. After exiting the outside of the main body 1 of the curing tank, the drainage pipe 161 and the exhaust pipe 162 merge into a main delivery pipeline. The drainage pipe 161 and the exhaust pipe 162 share the power pump outside the waste heat pipe 8, reducing the number of external power sources required.

[0030] See attached document Figure 7 A connecting rod 166 is fixedly connected between the movable valve plates of the two slide gate valves 163. Two connecting plates 165 are fixedly connected to the bottom of the connecting rod 166, and a lifting float ball 164 is installed at the bottom of the connecting plate 165.

[0031] Specifically, the connecting rod 166 is in a vertical position. The connecting rod 166 synchronously binds the movable valve plate of the slide valve 163 controlling the drain pipe 161 to the movable valve plate of the slide valve 163 controlling the exhaust pipe 162. The connecting plate 165 is distributed in an inverted U-shape on the lower end surface of the connecting rod 166. The inside of the lifting float 164 is hollow and sealed. The lifting float 164 generates up-and-down displacement power by hydraulic buoyancy. When the water level rises, the lifting float 164 rises due to the buoyancy of the liquid. The lifting float 164 pushes the connecting rod 166 upward through the connecting plate 165. When the water level falls, the lifting float 164 drives the connecting rod 166 to return to its original position by gravity. No electronic components are involved in the entire operation process.

[0032] See attached document Figure 6 and attached Figure 7 The lifting float 164 is set in the diversion pit 15, the bottom slide valve 163 is set in the second sewage trough 14, and the connecting rod 166 is slidably connected to the limit plate 167 on the outside. The limit plate 167 is installed on the inside of the main body 1 of the maintenance pool.

[0033] Specifically, the diversion pit 15 provides an independent vertical movement space for the lifting float 164, preventing it from being impacted by the mud and water flow. The bottom-mounted gate valve 163 controls the discharge and flow of mud and water in the second drainage trough 14. The limiting plate 167 has a through hole that matches the outer diameter of the connecting rod 166, restricting the connecting rod 166 to only slide linearly in a unidirectional direction perpendicular to the horizontal plane. When condensed mud and water accumulate in the diversion pit 15, the lifting float 164 rises, pulling the bottom gate valve 163 open, while the top gate valve 163 simultaneously closes, thus discharging the mud and water. When there is no water in the diversion pit 15, the bottom gate valve 163 closes due to gravity, while the top gate valve 163 simultaneously opens, performing an air extraction action, achieving adaptive switching between water discharge and air exhaust.

[0034] See attached document Figure 4 and attached Figure 5 A pressure equalization steam inlet pipe 171 is installed inside the first sewage trough 13. Multiple steam nozzles 172 are provided on the surface of the pressure equalization steam inlet pipe 171. Multiple fixed rotating shafts 174 are fixedly connected to the bottom of the curing pool body 1 on the surface of the first sewage trough 13.

[0035] Specifically, the equalizing steam inlet pipe 171 is suspended and fixed at the axis of the first sewage trough 13. Multiple steam nozzles 172 are horizontally and symmetrically welded along both sides of the equalizing steam inlet pipe 171. The steam nozzles 172 force the static high-pressure steam inside the equalizing steam inlet pipe 171 into a high-speed linear airflow. The fixed rotating shaft 174 is welded to the arc surface of the first sewage trough 13. The fixed rotating shaft 174 is configured in a one-to-one correspondence with the positions of the steam nozzles 172. The fixed rotating shaft 174 provides a rotation fulcrum for the transmission components supported above.

[0036] See attached document Figure 4 Appendix Figure 5 and attached Figure 8 A baffle blade 173 is rotatably connected to the side of the fixed rotating shaft 174 away from the surface of the first sewage tank 13. Two graphite bearings 175 are provided between the baffle blade 173 and the fixed rotating shaft 174. The steam injection direction of the steam nozzle 172 is towards the upper part of the baffle blade 173.

[0037] Specifically, the baffle blade 173 is shaped like a curved steel plate, and the graphite bearing 175 has high-temperature resistance and self-lubricating properties. The graphite bearing 175 is sleeved on the outside of the fixed rotating shaft 174 to adapt to the harsh working conditions of high temperature and high humidity inside the main body of the curing tank 1, and to prevent the baffle blade 173 from seizing and stopping due to thermal expansion. The high-speed straight airflow ejected from the steam nozzle 172 eccentrically impacts the upper half of the cross-section of the baffle blade 173. The kinetic energy carried by the high-speed straight airflow propels the baffle blade 173 to rotate at high speed around the fixed rotating shaft 174. The high-speed rotating baffle blade 173 forcibly cuts and disperses the straight-jet steam, generating an upward spiral rotating steam flow. The spiral rotating steam flow wraps around the cement pole placed above, eliminating the high-temperature heating blind zone.

[0038] See attached document Figure 3 and attached Figure 6 The first sewage trough 13 is semi-circular, and the second sewage trough 14 and the diversion pit 15 are both set on an inclined plane. The second sewage trough 14 and the diversion pit 15 converge towards the drain pipe 161.

[0039] Specifically, the semi-circular first drainage trough 13 gathers the cement slurry dripping from the top towards the center line area. The inclined second drainage trough 14 and the diversion pit 15 work together to form a gradually narrowing funnel-shaped landslide. The unconsolidated suspended mud and water fall into the second drainage trough 14 along the diversion pit 15 and the first drainage trough 13. The suspended mud and water are accelerated by the gravity of the inclined surface and slide into the drain pipe 161 for pumping away. The first drainage trough 13, the second drainage trough 14 and the diversion pit 15 work together to form a dredging channel that prevents mud from hardening.

[0040] See attached document Figure 3 The surface of the main body 1 of the curing pool is provided with multiple guardrails 4, and multiple supporting sleepers 5 are fixedly connected inside the main body 1 of the curing pool. The supporting sleepers 5 are located above the first sewage trough 13.

[0041] Specifically, guardrail 4 is welded to the top edge of the outer side of the main body 1 of the curing pool to ensure the personal safety of personnel when inspecting and walking along the edge of the main body 1 of the curing pool. Supporting sleepers 5 are horizontally installed above the opening of the first drainage ditch 13, providing rigid support to bear the weight of the large concrete poles. The supporting sleepers 5 elevate the concrete poles, creating a flow gap between the bottom of the concrete poles and the first drainage ditch 13 for steam to tumble and penetrate, allowing the spiraling steam flow to spray upwards from within the first drainage ditch 13.

[0042] See attached document Figure 1 and attached Figure 2 The bottom of the heat exchange water tank 3 has a flange on one side connected to a waste discharge pipe 9, and a flange on the other side connected to a water inlet pipe 10.

[0043] Specifically, the inlet pipe 10 is connected to an external ambient temperature tap water network. Ambient temperature tap water is injected into the bottom of the outer layer of the heat exchange tank 3 from the inlet pipe 10. After being heated, the liquid density decreases and it naturally floats upward to the outlet pipe 11. The waste discharge pipe 9 is connected to the external sewage drain. After the high temperature mud water enters the heat exchange tank 3 from the top, its own heat is absorbed by the ambient temperature tap water and cooled down. The cooled waste liquid is discharged from the bottom waste discharge pipe 9 by gravity. The inlet pipe 10 and the waste heat pipe 8 form a diagonal flow layout, constructing a counter-flow heat exchange channel to improve the heat exchange penetration rate and energy absorption rate.

[0044] See attached document Figure 1 and attached Figure 2 The main body 1 of the curing pool is provided with a sealing top cover 6. The top of the curing pool 1 protrudes to correspond to the bottom of the sealing top cover 6 being recessed. The bottom of the sealing top cover 6 is more concave than the top of the curing pool 1. The top of the sealing top cover 6 is provided with two sets of cover plate lifting lugs 7, and the two sets of cover plate lifting lugs 7 are different in shape.

[0045] Specifically, the sealing top cover 6 covers the top opening surface of the curing pool body 1. The protruding part at the top of the curing pool body 1 and the recessed part at the bottom of the sealing top cover 6 interlock and nest, forming a labyrinth-like anti-deviation clamping section. The dimensional allowance of the recessed part at the bottom of the sealing top cover 6 being larger than the protruding part at the top of the curing pool body 1 provides a buffer gap for thermal expansion and contraction deformation, preventing the metal sealing top cover 6 from becoming stuck and unable to open due to high temperature expansion. The cover plate lifting lugs 7 of different shapes are respectively adapted to gantry crane hook lifting accessories and wire rope sling lifting accessories, improving the lifting compatibility of the heavy metal sealing top cover 6 during loading and unloading operations.

[0046] Working principle: At room temperature tap water is injected into the water jacket of the heat exchange tank 3 through the inlet pipe 10. After absorbing heat and heating up, the pure hot water flows into the steam generator 2 through the outlet pipe 11 for boiling and vaporization. The generated high-pressure pure steam is injected into the pressure equalization steam inlet pipe 171 at the bottom of the curing tank body 1 through the steam delivery pipe 12 to form a stable pressure equalization chamber. The accumulated high-pressure pure steam then breaks through the limitation of multiple steam nozzles 172 to form a high-speed airflow jet. The high-speed airflow jet continuously and eccentrically impacts the upper part of multiple sets of turbulence blades 173. After being subjected to force, the turbulence blades 173 rely on the fixed rotating shaft 174 and graphite bearing 175 to start a self-rotating action. The rotation action forcibly cuts the straight steam flow and transforms it into an upward spiral airflow. The spiral airflow continuously washes over and heats the cement pole supported above through the gaps in the supporting sleepers 5.

[0047] During the heating operation, the liquid steam droplets generated by condensation mix with the liquid cement slurry seeping from the surface of the cement pole to form suspended mud and water. The unconsolidated suspended mud and water slides down the semi-circular surface of the first drainage trough 13 under the pull of gravity and falls into the second drainage trough 14 at the lowest point of the center. The suspended mud and water flowing into the second drainage trough 14 accelerates along the slope and eventually pours out and accumulates at the position of the drain pipe 161 for extraction.

[0048] As the level of suspended sludge water accumulated inside the diversion pit 15 gradually rises, the lifting float 164 is lifted upward by the buoyancy of the liquid. The lifting float 164 pushes the connecting rod 166 through the connecting plate 165 and slides upward along the through hole of the limiting plate 167. The sliding stroke causes the movable valve plate of the slide valve 163 inside the second sewage tank 14 to slide to the open and release state, and simultaneously causes the movable valve plate of the slide valve 163 inside the first sewage tank 13 to slide to the closed and blocking state. The power pump installed outside the waste heat pipe 8 draws out the suspended sludge water through the drain pipe 161. As the suspended sludge water is continuously drawn out, the water level continues to drop. The lifting float 164 loses buoyancy support and falls downward to reset. The opening and closing states of the two slide valves 163 are reversed, and the power pump switches to drawing out the high-temperature waste gas floating above the main body of the maintenance tank 1 through the exhaust pipe 162.

[0049] The high-temperature exhaust gas and boiling hot suspended sludge pumped by the power pump flow into the closed inner tank of the heat exchange water tank 3 through the waste heat pipe 8. As the high-temperature exhaust gas and boiling hot suspended sludge flow downward in the closed inner tank, the heat energy they carry penetrates the inner tank wall and is transferred to the room temperature tap water continuously injected into the outer water jacket layer by the water inlet pipe 10. After the room temperature tap water absorbs the heat energy, it heats up and is converted into pure hot water to perform the vaporization step. After releasing the heat energy, the cooling exhaust gas and cooling sludge lose their utilization value and flow out to the external discharge network through the waste discharge pipe 9 at the bottom of the heat exchange water tank 3, thus achieving a closed loop of the processing operation process.

Claims

1. A waste heat recovery type steam curing device for utility poles, comprising a curing tank body (1), a steam generator (2), and a heat exchange water tank (3), characterized in that, The main body (1) of the maintenance pool has a first sewage trough (13) on the bottom side inside, and a second sewage trough (14) is provided at the bottom of the first sewage trough (13). The main body (1) of the maintenance pool has two diversion pits (15) at the bottom. The heat exchange water tank (3) has a waste heat pipe (8) connected to the flange on one side of the top, and a water outlet pipe (11) connected to the flange on the top of the heat exchange water tank (3). The steam generator (2) and the heat exchange water tank (3) are connected through the water outlet pipe (11). The steam generator (2) has a steam delivery pipe (12) connected to the flange on the top of the steam generator (2). The bottom of the curing tank body (1) is provided with a gas-liquid separation component (16). The gas-liquid separation component (16) includes a drain pipe (161) and an exhaust pipe (162). One end of the drain pipe (161) is located in the second sewage trough (14), and the other end of the drain pipe (161) passes through one side of the curing tank body (1) and is connected to the waste heat pipe (8). The exhaust pipe (162) is located inside the curing tank body (1). At the bottom of the curing tank body (1) located at the first sewage trough (13), multiple sets of steam distribution components (17) are provided. The steam distribution component (17) includes a pressure equalization steam inlet pipe (171), which is connected to the steam delivery pipe (12).

2. The waste heat recovery type steam curing equipment for utility poles according to claim 1, characterized in that, One end of the exhaust pipe (162) is located in the first sewage trough (13), and the other end of the exhaust pipe (162) passes through one side of the main body of the maintenance pool (1) and is connected to the drain pipe (161). Both the drain pipe (161) and the exhaust pipe (162) are equipped with a gate valve (163) at one end inside the main body of the maintenance pool (1).

3. The waste heat recovery type steam curing equipment for utility poles according to claim 2, characterized in that, A connecting rod (166) is fixedly connected between the movable valve plates of the two slide gate valves (163). Two connecting plates (165) are fixedly connected to the bottom of the connecting rod (166), and a lifting float (164) is installed at the bottom of the connecting plate (165).

4. The waste heat recovery type steam curing equipment for utility poles according to claim 3, characterized in that, The lifting float (164) is set in the diversion pit (15), the bottom slide valve (163) is set in the second sewage trough (14), the connecting rod (166) is slidably connected to the limit plate (167) on the outside, and the limit plate (167) is installed on the inside of the main body (1) of the maintenance pool.

5. The waste heat recovery type steam curing equipment for utility poles according to claim 1, characterized in that, The equalizing steam inlet pipe (171) is installed in the first sewage trough (13). The surface of the equalizing steam inlet pipe (171) is provided with multiple steam nozzles (172). The bottom of the curing pool body (1) is fixedly connected to multiple fixed rotating shafts (174) on the surface of the first sewage trough (13).

6. The waste heat recovery type steam curing equipment for utility poles according to claim 5, characterized in that, The fixed rotating shaft (174) is rotatably connected to a baffle blade (173) on the side away from the surface of the first sewage tank (13). Two graphite bearings (175) are provided between the baffle blade (173) and the fixed rotating shaft (174). The steam nozzle (172) sprays steam towards the upper part of the baffle blade (173).

7. The waste heat recovery type steam curing equipment for utility poles according to claim 1, characterized in that, The first sewage trough (13) is semi-circular, the second sewage trough (14) and the guide pit (15) are both set on an inclined plane, and the second sewage trough (14) and the guide pit (15) converge towards the drain pipe (161).

8. The waste heat recovery type steam curing equipment for utility poles according to claim 1, characterized in that, The surface of the main body (1) of the maintenance pool is provided with multiple guardrails (4), and multiple supporting sleepers (5) are fixedly connected inside the main body (1). The supporting sleepers (5) are located above the first sewage trough (13).

9. The waste heat recovery type steam curing equipment for utility poles according to claim 1, characterized in that, The bottom of the heat exchange water tank (3) is connected to a waste discharge pipe (9) via a flange on one side, and to a water inlet pipe (10) via a flange on the other side.

10. A waste heat recovery type steam curing device for utility poles according to claim 1, characterized in that, The main body (1) of the curing pool is provided with a sealing top cover (6). The top of the main body (1) of the curing pool protrudes to correspond to the bottom of the sealing top cover (6). The bottom of the sealing top cover (6) is larger than the top of the main body (1) of the curing pool. The top of the sealing top cover (6) is provided with two sets of cover plate lifting lugs (7). The two sets of cover plate lifting lugs (7) have different shapes.

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