Incineration ash cooling device

Abstract

The invention provides an incineration ash cooling device which comprises a box body of a rectangular cone bottom structure, a slag inlet pipe is arranged at the top of the box body, an inner jacket is arranged on the inner wall of the box body, a plurality of vertically-arranged cooling calandria are further arranged in the box body, a water inlet pipe of the cooling calandria penetrates through the box body to be communicated with the upper ends of the cooling calandria, and the lower ends of the cooling calandria are communicated with the inner jacket. A box body water outlet pipe communicated with the inner jacket is arranged above the box body, and a box body water inlet pipe communicated with the inner jacket is arranged below the box body; a plurality of temperature sensors and material level detectors are further arranged in the box body; the conical bottom structure of the box body is communicated with a discharging auger; and a discharging port of the discharging auger is communicated with a star-shaped unloader. The ash cooling device is novel in design, the ash cooling speed is high, effective recycling of ash waste heat can be achieved, and meanwhile due to the fact that the device is of a static structure on the whole, the practical problems that an existing ash cooling device is large in number of operation parts and sealing points, prone to leakage and pollution, large in energy consumption and free of a buffering function are solved.

Description

Technical Field

[0001] The invention relates to the field of hazardous waste incineration treatment, and in particular to an incineration ash cooling device. Background Art

[0002] The ash cooling device of the hazardous waste incineration system generally adopts the roller slag cooler in the industry, and a small number of enterprises adopt the powder flow cooler. All of these devices have the characteristics of fast cooling speed. However, due to the rotation of the cooling cylinder, the sealing parts such as material inlet and outlet, ash extraction, and cooling water inlet and outlet are prone to failure. In addition, due to the large drive gear of the cylinder rotation, the large number of exposed rotating parts, and the large load required for driving, the operation site is dirty, messy, and poor, the maintenance workload is large, the operating energy consumption is high, the noise is large, and the inherent safety of the equipment is not high. Once the cylinder wheel fails, production must be stopped and returned to the factory for overhaul. In the actual production process, if the specific gravity of the ash is too small, the fluidity will deteriorate, the processing volume will decrease significantly, and the ash leakage phenomenon will be more obvious. Although the powder flow cooler is also a static cooling device, and the heat exchange area per unit volume is larger, it is difficult to automatically distribute the material because the heat exchange plates are partitioned, so the material distribution is high. This type of equipment usually has a small volume and a large height-to-width ratio. It has a small volume and high requirements for the height of the installation space. It is difficult to ensure the stability of the discharge temperature for production equipment with large fluctuations. Summary of the invention

[0003] The main purpose of the present invention is to provide an incineration ash cooling device, which effectively solves the problems inherent in the drum ash cooler, such as multiple dynamic sealing points, easy leakage, large impact of feed specific gravity on processing capacity, and large vibration, noise and energy consumption caused by large drive volume and mass. At the same time, it also avoids the problem that the powder flow cooler has high requirements for the feed distributor and high installation height.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: an incineration ash cooling device, comprising a box body with a rectangular cone bottom structure, a slag inlet pipe is provided at the top of the box body, an inner jacket is provided on the inner wall of the box body, and a plurality of vertically arranged cooling pipes are also provided inside the box body, a cooling pipe water inlet pipe passes through the box body and is connected to the upper ends of the plurality of cooling pipes, the lower ends of the plurality of cooling pipes (2) are connected to each other, a box body water outlet pipe connected to the inner jacket is provided at the top of the box body, and a box body water inlet pipe connected to the inner jacket is provided at the bottom; There are also multiple temperature sensors and material level detectors inside the box; The cone bottom structure of the box body is connected with the discharge auger, and the discharge port of the discharge auger is connected with the star-shaped discharger.

[0005] In the preferred embodiment, at least one blowing pipe is provided inside the conical bottom of the box body, a plurality of nozzles are provided on the blowing pipe, the blowing pipe passes through the box body and is connected to the electromagnetic pulse valve, and the electromagnetic pulse valve is connected to the air pump.

[0006] In the preferred embodiment, there is one nozzle, which is arranged below the blowing pipe; When there are multiple nozzles, the nozzles are evenly distributed on the outer surface of the blowing pipe, and no nozzle is arranged directly above the blowing pipe.

[0007] In the preferred embodiment, an exhaust pipe is also provided on one side of the top of the box body, and an ash baffle is provided inside the box body near the exhaust pipe.

[0008] In the preferred embodiment, a plurality of staggered baffles are arranged between the box body and the inner jacket, and the plurality of staggered baffles form a flow channel.

[0009] In the preferred embodiment, a triangular-structured distributor is provided at the opening position at the lower end of the slag inlet pipe, and both ends of the distributor are connected to the box body. A plurality of distribution plate guide grooves are provided on the inclined distribution plates on both sides of the distributor, and a feed flow limiter is provided between the upper position of the distribution plate guide groove and the side of the slag inlet pipe opening, and the feed flow limiter is a plate structure.

[0010] In the preferred embodiment, the upper end of the feed flow limiter is hinged to the box body, and the lower end of the feed flow limiter is connected to the reel outside the box body through a pull rope, and the reel is rotated to adjust the angle of the feed flow limiter and adjust the size of the feed opening between the distributor plate and the feed flow limiter; A spring is sleeved on the pull rope, and the spring is arranged between the box body and the feed current limiter; A locking screw is also provided on the rotating handle of the wire reel. The locking screw passes through the rotating handle and abuts against a bracket on the side of the wire reel to fix the position of the wire reel.

[0011] In a preferred embodiment, the plurality of cooling pipes are also connected to the cooling pipe water outlet pipe.

[0012] In the preferred embodiment, a first material level detector and a second material level detector are respectively provided at upper and lower positions on one side of the box body, and the probes of the first material level detector and the second material level detector extend through the inner jacket to the interior of the inner jacket; A first temperature sensor, a second temperature sensor and a third temperature sensor are respectively provided at the upper, middle and lower positions on one side of the box body; The first temperature sensor, the second temperature sensor and the third temperature sensor probes extend through the inner jacket into the inner jacket; In the preferred embodiment, the PLC controller is electrically connected to a plurality of temperature sensors, a material level detector, a discharge auger, a star-shaped discharger and an electromagnetic pulse valve.

[0013] The method includes: S1. The initial state of the cooling device is that all power devices are closed, and the tail gas pipe of the device is connected to the incineration system for treatment; S2. The operator clicks "Start" on the operation interface. At this time, the boiler feed water circulation pump starts to provide refrigerant for the device jacket and cooling pipe group and heat the boiler feed water; S3. When the high-temperature ash triggers the second material level detector, the system is activated and starts to record the temperature and operating time of the third temperature sensor; When the second temperature sensor detects high-temperature ash with a temperature above 300°C for 13 minutes, the system starts to record the temperature and operating time of the second temperature sensor; at this time, the system starts to calculate the cooling rate within the initial trigger time difference between the third temperature sensor and the second temperature sensor, and compares it with the preset cooling rate; If the cooling rate is lower than the preset rate, the system controls the electromagnetic pulse valve to open, otherwise it closes; When the first temperature sensor detects high-temperature ash above 300°C for 1-2 minutes, the system starts to record the temperature and operating time of the third temperature sensor and triggers the discharge procedure; At this time, the system counts the average feed rate of the device within the initial triggering time difference between the third temperature sensor and the first temperature sensor, the star-shaped unloader is started, and the discharge auger motor automatically sets the corresponding frequency according to the average feed rate of the device; S4. When the second temperature sensor detects that the material temperature is higher than the preset temperature, the system will reduce the frequency of the discharge auger motor and control the compressed air pulse valve to open, otherwise it will be closed; S5. The specific method of the shutdown step is: The operator clicks Stop on the operation interface; As long as the temperature detected by the second temperature sensor / the third temperature sensor reaches the preset discharge temperature, the discharge auger motor will run at full speed; When the temperature of the second temperature sensor is higher than the preset temperature, the electromagnetic pulse valve starts to spray, otherwise it stops spraying; When the temperature of the third temperature sensor is higher than the preset temperature, the discharging device stops and alarms; When the temperature of the third temperature sensor reaches or is lower than the preset temperature, the discharging auger continues to operate until the second material level detector detects no material for about 1-2 minutes, then the device automatically stops and all running equipment stops running.

[0014] The present invention provides an incineration ash cooling device. The ash cooling device provided by the present invention has the following beneficial effects by adopting the above structure: (1) Through the static cooling box structure and discharge mechanism design, the device has fewer and smaller dynamic sealing points, avoiding dust and refrigerant leakage problems caused by seal failure during the operation of the device. The power system consumes less energy and has a certain cache function, which can balance the fluctuations of the production device.

[0015] (2) The cooling pipes are arranged in parallel vertically, which are not easy to be blocked or adhered, have high heat exchange efficiency and are easy to process in batches. The feed distributor arranged at the top makes the ash more evenly distributed in the pipes, and the compressed gas injection device arranged at the bottom facilitates the rearrangement of the ash between the pipes, further improving the ash cooling efficiency.

[0016] (3) The electromagnetic pulse valve, material level detector, temperature sensor, discharge auger motor, star-shaped discharger motor, and boiler water circulation pump motor are all interlocked through PLC to ensure that the discharge temperature is stably controlled and the device can be operated unattended. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 is a structural diagram of the connection system of the present invention; Figure 2 This is a schematic diagram of the main cross-sectional layout of the box body of the present invention; Figure 3 It is a side view cross-sectional layout structure diagram of the box body of the present invention; Figure 4 This is a structural diagram of the installation position of the blowpipe of the present invention; Figure 5 This is a structural diagram of the preferred installation positions of two blowing pipes of the present invention; Figure 6 It is a structural diagram of a distributor of the present invention.

[0018] In the figure: box 1; box water inlet pipe 101; box water outlet pipe 102; slag inlet pipe 103; tail gas pipe 104; support column 105; first material level detector 1061; second first material level detector 1062; first temperature sensor 1071; second temperature sensor 1072; third temperature sensor 1073; support structure 108; ash baffle 109; baffle 110; cooling pipe 2; cooling pipe inlet Water pipe 201; cooling pipe outlet pipe 202; discharge auger 3; star discharger 4; blowing pipe 5; nozzle 501; electromagnetic pulse valve 502; distributor 6; distributor distribution plate 601; distribution plate guide groove 602; feed flow limiter 603; spring 604; pull rope 605; reel 606; locking screw 607; PLC controller 7; boiler feed water circulation pump 8; inner jacket 9; water pump 10; air pump 11. DETAILED DESCRIPTION

[0019] Example 1 like Figures 1 to 6As shown, an incineration ash cooling device comprises a box body 1 with a rectangular cone bottom structure, a slag inlet pipe 103 is provided on the top of the box body 1, an inner jacket 9 is provided on the inner wall of the box body 1, and a plurality of vertically arranged cooling row pipes 2 are further provided inside the box body 1, a cooling row pipe water inlet pipe 201 passes through the box body 1 and is connected with the upper ends of the plurality of cooling row pipes 2, and the lower ends of the plurality of cooling row pipes 2 are connected with each other, a box body water outlet pipe 102 connected with the inner jacket 9 is provided on the top of the box body 1, and a box body water inlet pipe 101 connected with the inner jacket 9 is provided on the bottom; the vertical arrangement of the cooling row pipes 2 contributes to the uniform distribution of ash during the cooling process and improves the cooling efficiency.

[0020] The connection method between the cooling pipe inlet pipe 201 and the cooling pipe 2 ensures the effective distribution of cooling water. The design of the cooling pipe outlet pipe 202 facilitates the regular maintenance and cleaning of the cooling pipe 2. The lower ends of the multiple cooling pipes 2 are interconnected to form a circulation, and the heat of the ash is recycled, thereby improving the utilization rate of thermal energy.

[0021] A plurality of temperature sensors and material level detectors are also provided inside the box 1; the cone bottom structure of the box 1 is connected to the discharge auger 3, and the discharge port of the discharge auger 3 is connected to the star-shaped discharger 4. Through a plurality of temperature sensors and material level detectors, the state of the ash can be monitored in real time to achieve precise control of the cooling process. The integrated control of the PLC controller 7 reduces the need for manual intervention, improves the level of automation, and reduces the possibility of operating errors. The design of the discharge auger 3 and the star-shaped discharger 4 simplifies the discharge process of the ash and ensures smooth discharge. Through precise monitoring and control, the possibility of equipment failure is reduced and the safety and reliability of the equipment are improved.

[0022] The cooling pipe group 2 is evenly distributed longitudinally, and the pipe spacing within each group of pipes, the spacing between each group of pipes and the spacing around the pipes are more than twice the maximum particle size of the ash, but the maximum spacing should not exceed 250mm and the minimum spacing should not be less than 100mm.

[0023] The discharging auger 3 is driven by a variable frequency motor, and the maximum discharging speed is about 1.52 times the feeding speed. The lower star-shaped discharger 4 is driven by an industrial frequency motor, and the maximum discharging speed is about 1.52 times the feeding speed. The discharging auger 3 is connected to the conical bottom of the box body 1, and the outlet of the discharging auger 3 is connected to the inlet of the star-shaped discharger 4 through a flange.

[0024] In the preferred embodiment, at least one blow pipe 5 is further provided inside the conical bottom of the box body 1, and a plurality of nozzles 501 are provided on the blow pipe 5. The blow pipe 5 passes through the box body 1 and is connected to the electromagnetic pulse valve 502, and the electromagnetic pulse valve 502 is connected to the air pump 11. The fluidity of the ash is enhanced by the blowing action of the compressed gas, which helps to rearrange the ash between the cooling exhaust pipes 2 and improve the cooling efficiency. The blowing helps to distribute the ash more evenly inside the box body 1, thereby improving the uniformity of cooling. The blow pipe 5 and a plurality of nozzles 501 are provided inside the conical bottom of the box body 1, and the injection of compressed gas is controlled by the electromagnetic pulse valve 502 when necessary, which enhances the fluidity of the ash and promotes the distribution of the ash between the cooling exhaust pipes 2, thereby improving the cooling efficiency and cooling uniformity.

[0025] In the preferred embodiment, there is one nozzle 501, and the nozzle 501 is arranged below the blowing pipe 5; When there are multiple nozzles 501, the nozzles 501 are evenly distributed on the outer surface of the blowing pipe 5, and no nozzle 501 is arranged directly above the blowing pipe 5. The single nozzle design is suitable for the blowing requirements under a specific flow rate and pressure; the multi-nozzle design can provide a wider coverage range, and the appropriate configuration can be selected according to the actual working conditions.

[0026] The uniform distribution of multiple nozzles helps to better disperse the ash, avoid local accumulation and improve cooling efficiency.

[0027] By adopting different numbers of nozzles 501 and properly arranging them, this preferred solution can optimize the spraying effect, improve cooling efficiency and uniformity, and reduce maintenance requirements.

[0028] In the preferred embodiment, a tail gas pipe 104 is further provided on one side of the top of the housing 1, and an ash baffle 109 is provided inside the housing 1 near the tail gas pipe 104. The ash baffle 109 helps to prevent ash from entering the tail gas pipe 104, reduces the dust content in the tail gas, and improves the quality of tail gas emissions. The design of the ash baffle 109 helps to optimize the flow path of the tail gas inside the housing 1, ensuring that the tail gas can be discharged smoothly without bringing out ash.

[0029] The length of the ash baffle 109 is the width of the narrow side of the cylinder 1, and the height is about 50 mm from the top of the cylinder 1 to the top of the cooling pipe group 2. The outlet is connected to the main incineration device, which is responsible for processing the exhaust gas and providing negative pressure.

[0030] In the preferred embodiment, a plurality of staggered baffles 110 are arranged between the box body 1 and the inner jacket 9, and the plurality of staggered baffles 110 form a circulation waterway. The baffles 110 are arranged in the jacket of the box body 1, and the strength of the box body and the legs 105 should be able to support the dynamic load of the device operation. The design of the baffles 110 increases the turbulence of the cooling water and improves the heat exchange efficiency. The staggered baffles 110 help to improve the distribution of the cooling water inside the box body 1, making it more uniform.

[0031] The reinforced design of the box body 1 and the legs 105 ensures that the device can withstand the dynamic load during operation, thereby improving the stability and safety of the equipment.

[0032] In the preferred embodiment, a distributor 6 with a triangular structure is provided at the opening position of the lower end of the slag inlet pipe 103, and both ends of the distributor 6 are connected to the box body 1. A plurality of distribution plate guide grooves 602 are provided on the inclined distributor distribution plates 601 on both sides of the distributor 6. A feed flow limiter 603 is provided between the upper position of the distribution plate guide groove 602 and the side surface of the opening of the slag inlet pipe 103. The feed flow limiter 603 is a plate structure.

[0033] The distributor 6 is composed of two isosceles trapezoidal metal plates, with the upper narrow side slightly larger than the diameter of the feed port, and the lower wide side approximately 1 / 2 of the length of the narrow side of the box body 1. The height is such that after the narrow sides of the two metal plates overlap and are welded at an angle within 90°, the distance between the lower wide sides is preferably between 1 / 32 / 3 of the long side of the box body 1. A 40mm high guide strip is welded on one side of the distributor distribution plate 601 that receives the material to form a distribution plate guide groove 602. There are more than 4 guide strips, and their arrangement is preferably to ensure that the material can flow to various areas in the box body 1 more evenly through the guide groove.

[0034] The design of the distributor 6 helps to evenly distribute the ash in the box 1, thereby improving the cooling effect.

[0035] The feed flow limiter 603 can adjust the feed amount of ash as needed, which helps to maintain a stable material height inside the box 1.

[0036] The design of the distribution plate guide groove 602 helps to distribute the ash more evenly inside the box body 1, thereby improving the uniformity of cooling.

[0037] By properly distributing the ash, the risk of clogging of the cooling pipe 2 is reduced.

[0038] By adopting a distributor 6 and a distribution plate guide groove 602 of a specific structure, this preferred solution can optimize the distribution of ash and slag, improve cooling uniformity, and reduce the risk of blockage of the cooling exhaust pipe 2.

[0039] In the preferred embodiment, the upper end of the feed current limiter 603 is hinged to the box body 1, and the lower end of the feed current limiter 603 is connected to the reel 606 outside the box body 1 through a pull rope 605. The reel 606 is rotated to adjust the angle of the feed current limiter 603, and the feed opening between the distributor plate 601 and the feed current limiter 603 is adjusted to be large. A spring 604 is sleeved on the pull rope 605, and the spring 604 is arranged between the box body 1 and the feed current limiter 603; A locking screw 607 is also provided on the rotating handle of the cable reel 606 . The locking screw 607 passes through the rotating handle and abuts against a bracket on the side of the cable reel 606 , thereby fixing the position of the cable reel 606 .

[0040] The feed flow limiter 603 is two rectangular metal plates, which are located directly above the distribution plate guide groove 602 and directly below the nozzle of the feed pipe 103 on the long axis side of the box body 1. The width is slightly larger than the feed nozzle 103. The distribution plate guide groove 602 should maintain a spacing of 10 mm. The upper part is connected to the box body 1 through a hinge, and the lower part is connected to the cylinder top adjustment mechanism 621 through a spring and a pull rope 605.

[0041] By manually adjusting the angle of the feed restrictor 603, the feed amount of ash can be flexibly adjusted according to actual conditions. The design of the locking screw 607 simplifies the adjustment steps and improves the convenience of operation. By adjusting the feed amount, the distribution of ash in the box body 1 can be better controlled to improve the cooling efficiency. A reasonable feed amount helps to reduce the risk of blockage of the cooling pipe 2.

[0042] In the preferred embodiment, the plurality of cooling pipes 2 are also connected to the cooling pipe outlet pipe 202. The cooling pipe outlet pipe 202 can be used for drainage, and generally the box outlet pipe 102 and the cooling pipe outlet pipe 202 are used for drainage together.

[0043] In the preferred embodiment, a first material level detector 1061 and a second first material level detector 1062 are respectively provided at the upper and lower positions on one side of the box body 1, and the probes of the first material level detector 1061 and the second first material level detector 1062 pass through the inner jacket 9 and extend into the inner jacket 9; A first temperature sensor 1071, a second temperature sensor 1072 and a third temperature sensor 1073 are respectively provided at the upper, middle and lower positions on one side of the box body 1; The probes of the first temperature sensor 1071 , the second temperature sensor 1072 and the third temperature sensor 1073 extend through the inner jacket 9 to the interior of the inner jacket 9 .

[0044] In the preferred embodiment, the PLC controller 7 is electrically connected to a plurality of temperature sensors, a material level detector, a discharge auger 3 , a star-shaped discharger 4 and an electromagnetic pulse valve 502 .

[0045] The PLC controller 7 summarizes and analyzes the data of the first temperature sensor 1071 / 2 / 3 and the first material level detector 1061 / 2 through the control program, and controls the variable frequency motor of the discharge auger 3, the motor of the star-shaped discharger 4, and the electromagnetic pulse valve 502 according to the set conditions, so as to realize the system's automatic feeding, discharging, shutdown, alarm and other operations.

[0046] Through multiple temperature sensors and material level detectors, the state of ash and slag can be monitored in real time to achieve precise control of the cooling process. The integrated control of PLC controller 7 reduces the need for manual intervention, improves the level of automation, and reduces the possibility of operating errors. Through the intelligent control of PLC controller 7, the automation of operations such as feeding, discharging, shutdown and alarm is realized, simplifying the operation process. Through real-time monitoring and feedback control of key parameters, the stability and reliability of the system are improved.

[0047] Example 2 Further illustrate with reference to Example 1, Figure 1-6 The structure shown includes a boiler feed water circulation system, an ash cooling device and a PLC controller. The ash cooling device is composed of a vertical square, conical bottom jacketed box 1, the upper and lower outer sides of the box 1 are respectively provided with pipes connected to the boiler feed water circulation pump and the boiler feed water tank, and a cooling pipe group composed of multiple groups of cooling pipes 2 connected in parallel in the box 1, and its inlet and outlet collection pipes pass through the box 1 and are connected to the boiler feed water circulation pump and the boiler feed water tank. The top of the cylinder is provided with a slag inlet pipe 103 and a distributor 6, an exhaust pipe 104 and an ash baffle 109, and the bottom of the cylinder is provided with a discharging auger 3 and a star-shaped discharger. A blow pipe 5 is arranged between the bottom of the cooling pipe group 2 in the box and the top of the discharge auger 3. The blow pipe 5 passes through the box 1 and is connected with the compressed air pipeline. Two material level detectors and three temperature sensors are installed on the side of the box 1 to transmit the material level and temperature signals to the PLC controller 7. The discharge temperature is preset by the program, the operating frequency of the variable frequency motor of the discharge auger 3, the start and stop of the motor of the star-shaped unloader 4 and the action frequency of the electromagnetic pulse valve on the blow pipe 5 are controlled, and the stable control of the discharge temperature is achieved.

[0048] The method includes: S1. The initial state of the cooling device is that all power devices are closed, and the tail gas pipe of the device is connected to the incineration system for treatment; S2. The operator clicks "Start" on the operation interface. At this time, the boiler feed water circulation pump starts to provide refrigerant for the device jacket and cooling pipe group and heat the boiler feed water; S3. When the high-temperature ash triggers the second material level detector 1062, the system is activated and starts to record the temperature and operating time of the third temperature sensor 1073; When the second temperature sensor 1072 continuously detects high-temperature ash with a temperature of more than 300°C for 13 minutes, the system starts to record the temperature and operation time of the second temperature sensor 1072; at this time, the system starts to calculate the cooling rate within the initial triggering time difference between the third temperature sensor 1073 and the second temperature sensor 1072, and compares it with the preset cooling rate; If the cooling rate is lower than the predetermined rate, the system controls the electromagnetic pulse valve 502 to open the spray, otherwise it is closed; When the first temperature sensor 1071 detects high-temperature ash with a temperature above 300°C for 1-2 minutes, the system starts to record the temperature and operating time of the third temperature sensor 1073 and triggers the discharge procedure; At this time, the system counts the average feed rate of the device within the initial triggering time difference between the third temperature sensor 1073 and the first temperature sensor 1071, the star-shaped discharger 4 is started, and the motor of the discharge auger 3 is automatically given a corresponding frequency according to the average feed rate of the device; S4. When the second temperature sensor 1072 detects that the material temperature is higher than the preset temperature, the system will reduce the frequency of the motor of the discharge auger 3 and control the compressed air pulse valve 502 to open the injection, otherwise it will be closed; S5. The specific method of the shutdown step is: The operator clicks Stop on the operation interface; As long as the temperature detected by the second temperature sensor 1072 / the third temperature sensor 1073 reaches the preset discharge temperature, the motor of the discharge auger 3 will run at full speed; When the temperature of the second temperature sensor 1072 is higher than the preset temperature, the electromagnetic pulse valve 502 starts to spray, otherwise it stops spraying; When the temperature of the third temperature sensor 1073 is higher than the preset temperature, the discharging device stops and alarms; When the temperature of the third temperature sensor 1073 reaches or is lower than the preset temperature, the discharging auger 3 continues to operate until the second material level detector 1062 detects no material for about 1-2 minutes, and then the device automatically stops and all running equipment stops running.

[0049] The ash cooling device provided by the present invention is used for cooling high-temperature ash from incineration: The initial state of the cooling device is that all power devices are closed, and the tail gas pipe of the device is connected to the incineration system for treatment. Device operation startup: The operator clicks start on the operation interface. At this time, the boiler feed water circulation pump is turned on to provide refrigerant for the device jacket and cooling pipe group and heat the boiler feed water.

[0050] When the high-temperature ash triggers the first material level detector 1062 , the system is activated and starts to record the temperature and operating time of the third temperature sensor 1073 .

[0051] When the second temperature sensor 1072 detects high-temperature ash with a temperature of 300°C (temperature can be modified) or above for 1 minute (time can be modified), the system starts to record the temperature and operation time of the second temperature sensor 1072. At this time, the system starts to calculate the cooling rate within the initial trigger time difference between the third temperature sensor 1073 and the second temperature sensor 1072, and compares it with the preset cooling rate. If the cooling rate is lower than the preset rate, the system controls the electromagnetic pulse valve 502 to open the spray, otherwise it is closed.

[0052] Device discharging: When the first temperature sensor 1071 detects high-temperature ash with a temperature of 300°C (temperature can be modified) or above for 1 minute (time can be modified), the system starts to record the temperature and operating time of the third temperature sensor 1073 and triggers the discharging procedure. At this time, the system counts the average feeding rate (m³ / h) of the device within the time difference between the initial triggering of the third temperature sensor 1073 and 1071, the star-shaped discharger 4 starts, and the discharge auger 3 motor automatically gives the corresponding frequency according to the average feeding rate of the device.

[0053] During the operation of the discharging program, when the high-temperature ash triggers the first material level detector 1061, the system determines that the discharging speed is too low and will gradually increase the frequency of the discharging auger 3 motor until the first material level detector 1061 detects no material for 1 minute (the time can be modified), and then restores the original frequency.

[0054] When the second temperature sensor 1072 detects that the material temperature is higher than the preset temperature (equal to or close to the discharge temperature), the system will reduce the frequency of the motor of the discharge auger 3 and control the electromagnetic pulse valve 502 to open the spray, otherwise it will be closed. Device shutdown: The operator clicks the shutdown button on the operation interface.

[0055] At this time, as long as the temperature detected by the second temperature sensor 1072 / the third temperature sensor 1073 reaches the preset discharge temperature, the discharge auger 3 motor will run at full speed. When the temperature of the second temperature sensor 1072 is higher than the preset temperature, the compressed gas electromagnetic pulse valve 502 starts to blow, otherwise it stops blowing. When the temperature of the third temperature sensor 1073 is higher than the preset temperature, the discharge device stops and alarms.

[0056] When the temperature of the third temperature sensor 1073 reaches or is lower than the preset temperature, the discharging auger 3 continues to operate until the first material level detector 1062 detects no material for about 1 minute (the time can be set), the device automatically shuts down, and all operating equipment stops running.

[0057] The main body of the device is a static device. Since the dynamic sealing points are few and small, leakage is easy to control. The setting of cooling pipes and injection pipes is more conducive to the automatic distribution of ash and slag and enhanced cooling. The actual cooling effect is better, and the installation height requirement is not high. It is suitable for large, medium and small types of equipment. The tail gas is directly connected to the main incineration device, and there is no need to add a tail gas treatment system, and the structure is simpler. The heat of the ash is used to increase the boiler inlet water temperature so that the heat energy can be fully utilized. The operation process of the entire device is automatically controlled by the program, and personnel only need to conduct regular inspections, with a high degree of automation.

[0058] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. An incineration ash cooling device, characterized in that: The invention comprises a box body (1) with a rectangular cone bottom structure, a slag inlet pipe (103) is provided at the top of the box body (1), an inner jacket (9) is provided on the inner wall of the box body (1), a plurality of cooling ducts (2) arranged vertically are also provided inside the box body (1), a cooling duct water inlet pipe (201) passes through the box body (1) and is connected to the upper ends of the plurality of cooling ducts (2), the lower ends of the plurality of cooling ducts (2) are connected to each other, a box body water outlet pipe (102) connected to the inner jacket (9) is provided at the top of the box body (1), and a box body water inlet pipe (101) connected to the inner jacket (9) is provided at the bottom; A plurality of temperature sensors and material level detectors are also provided inside the box (1); The cone bottom structure of the box body (1) is connected to the discharge auger (3), and the discharge port of the discharge auger (3) is connected to the star-shaped discharger (4).

2. The incineration ash cooling device according to claim 1, characterized in that: At least one blowing pipe (5) is also provided inside the conical bottom of the box body (1), and a plurality of nozzles (501) are provided on the blowing pipe (5). The blowing pipe (5) passes through the box body (1) and is connected to the electromagnetic pulse valve (502), and the electromagnetic pulse valve (502) is connected to the air pump (11).

3. The incineration ash cooling device according to claim 2, characterized in that: There is one nozzle (501), and the nozzle (501) is arranged below the blowing pipe (5); When there are multiple nozzles (501), the nozzles (501) are evenly distributed on the outer surface of the blowing pipe (5), and no nozzles (501) are arranged directly above the blowing pipe (5).

4. The incineration ash cooling device according to claim 1 is characterized in that: An exhaust pipe (104) is also provided on one side of the top of the box body (1), and an ash baffle (109) is provided inside the box body (1) near the exhaust pipe (104).

5. The incineration ash cooling device according to claim 1, characterized in that: A plurality of staggered baffles (110) are arranged between the box body (1) and the inner jacket (9), and the plurality of staggered baffles (110) form a flow channel.

6. The incineration ash cooling device according to claim 1, characterized in that: A distributor (6) with a triangular structure is provided at the opening position of the lower end of the slag inlet pipe (103), and both ends of the distributor (6) are connected to the box body (1). A plurality of distribution plate guide grooves (602) are provided on the inclined distributor distribution plates (601) at both sides of the distributor (6), and a feed flow limiter (603) is provided between the upper position of the distribution plate guide groove (602) and the side surface of the opening of the slag inlet pipe (103), and the feed flow limiter (603) is a plate structure.

7. The incineration ash cooling device according to claim 1 is characterized in that: The upper end of the feed flow limiter (603) is hinged to the box body (1), and the lower end of the feed flow limiter (603) is connected to a reel (606) outside the box body (1) via a pull rope (605). The reel (606) is rotated to adjust the angle of the feed flow limiter (603) and modulate the size of the feed opening between the distributor plate (601) and the feed flow limiter (603). A spring (604) is sleeved on the pull rope (605), and the spring (604) is arranged between the box body (1) and the feed current limiter (603); A locking screw (607) is also provided on the rotating handle of the wire reel (606). The locking screw (607) passes through the rotating handle and abuts against a bracket on the side of the wire reel (606), thereby fixing the position of the wire reel (606).

8. The incineration ash cooling device according to claim 1, characterized in that: The plurality of cooling pipes (2) are also in communication with the cooling pipe water outlet pipe (202).

9. The incineration ash cooling device according to claim 1, characterized in that: A first material level detector (1061) and a second material level detector (1062) are respectively provided at upper and lower positions on one side of the box body (1), and the probes of the first material level detector (1061) and the second material level detector (1062) pass through the inner jacket (9) and extend into the interior of the inner jacket (9); A first temperature sensor (1071), a second temperature sensor (1072) and a third temperature sensor (1073) are respectively provided at upper, middle and lower positions on one side of the box body (1); Probes of the first temperature sensor (1071), the second temperature sensor (1072), and the third temperature sensor (1073) pass through the inner jacket (9) and extend into the interior of the inner jacket (9); The PLC controller (7) is electrically connected to a plurality of temperature sensors, a material level detector, a discharge auger (3), a star-shaped discharger (4), and an electromagnetic pulse valve (502).

10. The method for using the incineration ash cooling device according to claim 19, characterized in that: The method includes: S1. The initial state of the cooling device is that all power devices are closed, and the tail gas pipe of the device is connected to the incineration system for treatment; S2. The operator clicks "Start" on the operation interface. At this time, the boiler feed water circulation pump starts to provide refrigerant for the device jacket and cooling pipe group and heat the boiler feed water; S3. When the high-temperature ash triggers the second material level detector (1062), the system is activated and starts to record the temperature and operating time of the third temperature sensor (1073); When the second temperature sensor (1072) detects high-temperature ash with a temperature of more than 300°C for 13 minutes, the system starts to record the temperature and operation time of the second temperature sensor (1072); at this time, the system starts to calculate the cooling rate within the initial trigger time difference between the third temperature sensor (1073) and the second temperature sensor (1072), and compares it with the preset cooling rate; If the cooling rate is lower than the predetermined rate, the system controls the electromagnetic pulse valve (502) to open the spray, otherwise it is closed; When the first temperature sensor (1071) detects high-temperature ash with a temperature of more than 300°C for 1-2 minutes, the system starts to record the temperature and operating time of the third temperature sensor (1073) and triggers the discharge procedure; At this time, the system counts the average feed rate of the device within the time difference between the initial triggering of the third temperature sensor (1073) and the first temperature sensor (1071), the star-shaped discharger (4) is started, and the motor of the discharge auger (3) is automatically given a corresponding frequency according to the average feed rate of the device; S4. When the second temperature sensor (1072) detects that the material temperature is higher than the preset temperature, the system will reduce the frequency of the motor of the discharge auger (3) and control the compressed air pulse valve (502) to open the injection, otherwise it will be closed; S5. The specific method of the shutdown step is: The operator clicks Stop on the operation interface; As long as the temperature detected by the second temperature sensor (1072) / the third temperature sensor (1073) reaches the preset discharge temperature, the motor of the discharge auger (3) will run at full speed; When the temperature of the second temperature sensor (1072) is higher than a preset temperature, the electromagnetic pulse valve (502) starts to spray, otherwise it stops spraying; When the temperature of the third temperature sensor (1073) is higher than a preset temperature, the discharging device stops and alarms; When the temperature of the third temperature sensor (1073) reaches or is lower than the preset temperature, the discharge auger (3) continues to operate until the second material level detector (1062) detects no material for about 1-2 minutes, at which time the device automatically shuts down and all operating equipment stops running.

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