A high-salinity flue gas hazardous waste heat boiler

Abstract

The present invention discloses a high-salt flue gas hazardous waste waste heat boiler, which relates to the technical field of waste heat boilers, including a flue gas treatment component, a flue gas circulation component, a heating component, a base, and an outer cylinder. The bottom of the outer cylinder is tightly connected to the top of the base, and the outer cylinder is provided with a water inlet pipe and a steam pipe. The flue gas treatment component, the flue gas circulation component, the heating component and the outer cylinder are connected. One end of the flue gas treatment component is tightly connected to the inner wall of the outer cylinder, and the other end of the flue gas treatment component is connected to the flue gas circulation component. The flue gas circulation component is fixed on the side wall of the outer cylinder, and the two ends of the heating component are fixed on the side walls at both ends of the outer cylinder. The flue gas treatment component of the present invention greatly improves the possibility of impurities in the flue gas being captured, realizes the recycling of the capture medium, reduces the equipment maintenance cost, and centrally processes the captured impurity particles to avoid secondary pollution.

Description

Technical Field

[0001] The invention relates to the technical field of waste heat boilers, and in particular to a high-salinity flue gas hazardous waste waste heat boiler. Background Art

[0002] Waste heat boilers refer to boilers that use the waste heat of hazardous waste high-temperature flue gas in industrial production to heat water. Waste heat boilers can significantly improve the energy utilization rate of factories and contribute to energy conservation and emission reduction. In recent years, with the continuous rise in international energy prices, people have paid more and more attention to the cost aspect of boiler selection, and waste heat boilers are in line with this development direction. However, traditional hazardous waste flue gas is mixed with more polluting impurities, salt, etc., which can easily cause damage to the boiler. Traditional waste heat boilers can only remove larger impurities in hazardous waste flue gas by filtering, and there is no effective means to remove small particles of flying dust and salt crystal particles. These substances will greatly reduce the service life of the equipment during long-term use. On the other hand, waste heat boilers also need to be assisted by gas when in use, and traditional waste heat boilers do not have an effective mixing method for gas and air, which is prone to incomplete combustion of gas, resulting in energy waste. The heat dissipation fins used in traditional waste heat boilers are mostly straight fins. On the one hand, straight fins will hinder the flow of water. On the other hand, the recoil force of the straight fins on the water flow will also discharge the water away from the heating device, which is not conducive to the generation of steam. Summary of the invention

[0003] The object of the present invention is to provide a high-salinity flue gas hazardous waste heat boiler to solve the problems raised in the above-mentioned background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a high-salt flue gas hazardous waste heat boiler, comprising a flue gas treatment component, a flue gas circulation component, a heating component, a base, and an outer cylinder, wherein the bottom of the outer cylinder is tightly connected to the top of the base, a water inlet pipe and a steam pipe are arranged on the outer cylinder, the steam pipe is connected to the side of the outer cylinder away from the base, the water inlet pipe is connected to the side wall of the outer cylinder, a one-way valve is arranged inside the water inlet pipe, a flue gas treatment component, a flue gas circulation component, a heating component and the outer cylinder are connected, one end of the flue gas treatment component is tightly connected to the inner wall of the outer cylinder, the other end of the flue gas treatment component is connected to the flue gas circulation component, the flue gas circulation component is fixed on the side wall of the outer cylinder, and the two ends of the heating component are fixed on the side walls of the two ends of the outer cylinder. The flue gas treatment component removes impurities in the hazardous waste flue gas, and the high-temperature flue gas after the impurities are removed is transported to the flue gas circulation component, the moisture in the outer cylinder exchanges heat with the flue gas circulation component, and the heating component balances the total amount of heat exchange. The flue gas treatment component of the present invention greatly improves the possibility of impurities in the flue gas being captured, realizes the recycling of the capture medium, reduces the equipment maintenance cost, and centrally processes the captured impurity particles to avoid secondary pollution. The removal of impurity particles can prevent salt from corroding the surface of the boiler, greatly improving the service life of the boiler. The present invention assists the removal of impurities on the metal balls and conductive blocks by the rotation of the conveyor belt, which not only ensures the reliability of the equipment operation, but also simplifies the drive structure and saves the manufacturing cost of the equipment. The mixing holes in the inner sleeve and the outer sleeve of the present invention are set at the same deflection angle, and the air intake angles of the two are relatively set. The combustion gas is dispersed into multiple streams after input, and the air will be evenly dispersed into each stream of combustion gas. The two are blended with each other in the form of airflow counter-attack. In this way, the present invention greatly improves the uniformity of air mixing in the combustion gas and ensures that the combustion inside the heating tube can be carried out thoroughly.

[0005] Furthermore, the flue gas treatment component includes a transition box, an air intake block, an air outlet block, a conveyor belt, a conductive block, a recovery tank, and a contact block. The transition box is tightly connected to the inner wall of the outer cylinder, and the air intake block and the air outlet block are respectively arranged on both sides of the inner wall of the transition box. One end of the air intake block is connected to the external flue gas duct, and the end of the air intake block away from the external flue gas duct is connected to the interior of the transition box. One end of the air outlet block is connected to the flue gas circulation component, and the other end of the air outlet block is connected to the interior of the transition box. A conveyor belt is arranged at the lower end of the interior of the transition box, and the conveyor belt is connected to the side wall of the transition box through a bracket. A plurality of conductive blocks are arranged on the conveyor belt, and the conductive blocks are evenly distributed on the conveyor belt. A recovery trough is arranged below the conveyor belt, and the recovery trough is fastened to the inner bottom surface of the transition box. A contact block is arranged on the side of the conveyor belt. There are two contact blocks, and the conductive blocks are in contact with each other. One contact block is flush with the conductive block above the conveyor belt, and the other contact block is flush with the conductive block below the conveyor belt. The contact block flush with the conductive block above the conveyor belt is connected to the negative pole of the external power supply, and the contact block flush with the conductive block below the conveyor belt is connected to the external ground wire. The present invention is provided with a guiding slope on the side of the conveyor belt close to the air inlet block, a uniform electric field is provided above the conveyor belt, and a plurality of metal balls are provided inside the transition box. The metal balls are initially located on the conductive block above the conveyor belt. At this time, the conductive block is negatively charged, and the charge is transferred to the metal balls, generating a repulsive force between the metal balls and the conductive block, and the repulsive force is slightly smaller than the gravity of the metal balls. The metal balls move toward the side close to the air inlet block as the conveyor belt moves, and the metal balls slide upward under the action of the guiding slope. After sliding up, the metal balls enter the uniform electric field area, and the force of the uniform electric field on the metal balls is vertically upward, which is slightly larger than the gravity of the metal balls. The metal balls are accelerated upward under the action of the uniform electric field. During the upward movement, the flue gas moves from the air inlet block to the air outlet block. The flue gas input into the air inlet block contains more salt particles and fly ash. The metal balls move toward the side of the air outlet block under the action of the flue gas, and in this process, the flue gas The gas and the metal ball are in full contact, and the impurity particles in the flue gas are captured by the metal ball with static electricity. After the metal ball captures the impurities, the weight increases, exceeding the uniform electric field force, and the metal ball falls, leaving the uniform electric field area, and the metal ball falls on the conductive block located above the conveyor belt. The conductive block carries more negative charges. When the metal ball rolls with the conveyor belt, the surface of the metal ball contacts the conductive block, and the impurity particles are captured by the conductive block in turn. The conductive block drives the impurity particles to rotate. When the conductive block rotates to the bottom of the conveyor belt, the conductive block contacts the contact block connected to the ground wire, and the charge on the conductive block is transferred away, and the impurity particles fall off into the recovery tank. In this way, the present invention greatly improves the possibility of impurities in the flue gas being captured, realizes the recycling of the capture medium, reduces the equipment maintenance cost, and centrally processes the captured impurity particles to avoid secondary pollution. The removal of impurity particles can avoid the corrosion of salt on the surface of the boiler, and greatly improves the service life of the boiler.

[0006] Furthermore, a plurality of vibration units are arranged inside the conveyor belt, and the vibration units include a displacement block, a movable bar, and a sliding rod. The displacement block is fastened to the frame of the conveyor belt. A displacement cavity is arranged inside the displacement block. A vibration bead and a vibration spring are arranged inside the displacement cavity. One end of the vibration spring is fastened to the vibration bead, and the other end of the vibration spring is fastened to the side wall of the displacement cavity. A movable bar is fixed on the side wall of the displacement block. A slide groove is arranged inside the movable bar. A sliding rod is arranged inside the slide groove. The sliding rod is slidably connected to the slide groove. The sliding rod is connected to the vibration bead through a connecting rope. A plurality of paddles are arranged on the inner circle of the conveyor belt. When the conveyor belt is running, the paddle will drive the sliding rod to move, and the sliding rod will pull the vibration bead through the connecting rope. The vibration bead is symmetrically arranged. When the conveyor belt rotates, it will drive the vibration bead to vibrate both the upper and lower sides of the conveyor belt at the same time. The upper side of the vibrating conveyor belt is conducive to the impurities on the metal ball falling off, and the lower side of the vibrating conveyor belt is conducive to the impurities on the conductive block falling off. The present invention assists the impurities on the metal ball and the conductive block to fall off through the rotation of the conveyor belt, which not only ensures the reliability of the equipment operation, but also simplifies the driving structure and saves the manufacturing cost of the equipment.

[0007] Furthermore, the smoke circulation component includes a first heating tube, a second heating tube, a conversion chamber, and a recovery chamber. There are several first heating tubes and second heating tubes. One end of the first heating tube is connected to the smoke treatment component, and the other end of the first heating tube is connected to the conversion chamber. The conversion chamber is tightly connected to the outer cylinder. One end of the second heating tube is tightly connected to the conversion chamber, and the other end of the second heating tube is tightly connected to the recovery chamber. The recovery chamber is tightly connected to one end of the outer cylinder away from the conversion chamber. One end of the recovery chamber away from the second heating tube is connected to the external smoke recovery pipe. The second heating tube is located below the first heating tube. When the high-temperature flue gas is distributed to each of the first heating tubes, the waste heat of the high-temperature flue gas will heat the moisture inside the outer cylinder. The first heating tube is located above the second heating tube because the water body with higher temperature is located on the upper side of the outer cylinder. The high-temperature flue gas first heats it so that it can evaporate quickly. The flue gas that has undergone heat exchange is then transported to the second heating tube. The water temperature at the second heating tube is relatively low, and the waste heat of the flue gas in the second heating tube preheats it. The present invention can quickly generate steam and improve the working efficiency of the boiler through this segmented heating.

[0008] Furthermore, spiral fins are arranged outside the first heating tube and the second heating tube. The spiral fins can assist the heat exchange between the flue gas and the water inside the outer cylinder on the one hand, and on the other hand, when the water flows inside the outer cylinder, the spiral fins will vibrate, and when the spiral fins vibrate, they will guide the water around the first heating tube and the second heating tube to move repeatedly in the spiral direction. The spiral movement of the water increases the heat exchange time and contact area between the first heating tube and the second heating tube, while ordinary straight fins will hinder the flow of water on the one hand, and on the other hand, the recoil force of the straight fins on the water flow will also discharge the water flow to a place far away from the first heating tube and the second heating tube, which is not conducive to the generation of steam.

[0009] Furthermore, the heating assembly includes a heating pipe, an air intake pump, and an air intake component. The heating pipe passes through the outer cylinder, and the heating pipe and the two end surfaces of the outer cylinder are tightly connected. One end of the heating pipe is connected to the air outlet of the air intake pump, and the end of the heating pipe away from the air intake pump is connected to the external tail gas recovery pipeline, and the air intake of the air intake pump and the air intake component are tightly connected. The heating pipe provided in the present invention is used to balance the waste heat of the exhaust gas. Since the waste heat of the exhaust gas cannot be output continuously and stably, it is necessary to set another set of heating pipes inside the outer cylinder. The heating pipe will adjust the input gas volume according to the waste heat temperature of the exhaust gas, so as to ensure that the boiler can output steam continuously and stably.

[0010] Furthermore, the air intake component includes an inner sleeve and an outer sleeve. A sealing end face is provided on one side of the inner sleeve and the outer sleeve, and the other side of the inner sleeve and the outer sleeve is open. The inner sleeve is located inside the outer sleeve. An annular mounting hole is provided on the end face of the outer sleeve. The outer wall of the open end of the inner sleeve is installed in the annular mounting hole. The open end of the inner sleeve is connected to the gas delivery pipeline through a pipeline, and the open end of the outer sleeve is fastened to the air intake of the air intake pump. A plurality of mixing holes are provided in the inner walls of the inner sleeve and the outer sleeve, and the mixing holes in the inner sleeve and the outer sleeve are inclined at the same deflection angle. The combustion gas is input from the open end of the inner sleeve, and the air is input from the mixing hole on the outer sleeve. The mixing holes in the inner sleeve and the outer sleeve of the present invention are set at the same deflection angle, and the air intake angles of the two are relatively set. The combustion gas is dispersed into multiple streams after input, and the air will be evenly dispersed into each stream of combustion gas. The two blend with each other in the form of airflow collision. In this way, the present invention greatly improves the uniformity of air mixing in the combustion gas, ensuring that the combustion inside the heating tube can be carried out thoroughly.

[0011] Furthermore, a plurality of annular guide rings are arranged inside the outer cylinder, and inclined surfaces are arranged on both sides of the annular guide rings, and notches are arranged on the annular guide rings. The notches of the present invention are randomly arranged, and the annular guide rings are divided into different lengths. When the boiler is in normal use, the input water will impact the two ends of the outer cylinder. The inclined surfaces on the annular guide rings arranged in the present invention guide part of the flow to the center of the outer cylinder, weakening the axial impact force. The notches on the annular guide rings can divide the complete fluid on the one hand, so that the impact direction will not converge in the same direction. On the other hand, the divided annular guide rings will change the local structure of the outer cylinder, so that the local resonance frequency of the boiler is different when it is in use. The present invention prolongs the service life of the boiler in this way.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the flue gas treatment assembly of the present invention greatly improves the possibility of impurities in the flue gas being captured, realizes the recycling of the capture medium, reduces the equipment maintenance cost, and centrally processes the captured impurity particles to avoid secondary pollution. The removal of impurity particles can avoid the corrosion of salt on the boiler surface, greatly improving the service life of the boiler. The present invention assists the fall of impurities on the metal balls and conductive blocks by the rotation of the conveyor belt, which not only ensures the reliability of the equipment operation, but also simplifies the drive structure and saves the manufacturing cost of the equipment. The mixing holes in the inner sleeve and the outer sleeve of the present invention are set at the same deflection angle, and the air intake angles of the two are relatively set. The combustion gas is dispersed into multiple streams after input, and the air will be evenly dispersed into each stream of combustion gas. The two are mutually blended in the form of airflow counteraction. In this way, the present invention greatly improves the uniformity of air mixing in the combustion gas and ensures that the combustion inside the heating tube can be carried out thoroughly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 It is a three-dimensional schematic diagram of the internal structure of the outer cylinder of the present invention;

[0016] Figure 3 It is a top view of the internal structure of the outer cylinder of the present invention;

[0017] Figure 4 This is a schematic diagram of the internal working principle of the transition box of the present invention;

[0018] Figure 5 is a partial cross-sectional view of the vibration unit of the present invention;

[0019] Figure 6 is a front view of a first heating tube of the present invention;

[0020] Figure 7 is an axial cross-sectional view of an air intake component of the present invention;

[0021] Figure 8 yes Figure 7 AA side section view;

[0022] Fig. 9 is a cross-sectional view of the outer cylinder of the present invention;

[0023] In the figure: 1-smoke treatment component, 11-transition box, 12-air inlet block, 13-air outlet block, 14-conveyor belt, 141-displacement block, 142-movable bar, 143-sliding rod, 144-vibration bead, 145-vibration spring, 15-conductive block, 16-recovery groove, 17-contact block, 2-smoke circulation component, 21-first heating tube, 211-spiral fin, 22-second heating tube, 23-conversion chamber, 24-recovery chamber, 3-heating component, 31-heating tube, 32-air intake pump, 33-air intake component, 331-inner sleeve, 332-outer sleeve, 333-mixing hole, 4-base, 5-outer cylinder, 51-annular guide ring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-9 , the present invention provides a technical solution:

[0026] like Figure 1-9As shown, a high-salt flue gas hazardous waste heat boiler includes a flue gas treatment component 1, a flue gas circulation component 2, a heating component 3, a base 4, and an outer cylinder 5. The bottom of the outer cylinder 5 is tightly connected to the top of the base 4, and a water inlet pipe and a steam pipe are provided on the outer cylinder 5. The steam pipe is connected to the side of the outer cylinder away from the base, the water inlet pipe is connected to the side wall of the outer cylinder, and a one-way valve is provided inside the water inlet pipe. The flue gas treatment component 1, the flue gas circulation component 2, the heating component 3 and the outer cylinder 5 are connected. One end of the flue gas treatment component 1 is tightly connected to the inner wall of the outer cylinder 5, and the other end of the flue gas treatment component 1 is connected to the flue gas circulation component 2. The flue gas circulation component 2 is fixed to the side wall of the outer cylinder 5, and both ends of the heating component 3 are fixed to the side walls of the outer cylinder 5 at both ends. The flue gas treatment component 1 removes impurities from hazardous waste flue gas, and the high-temperature flue gas after impurities are removed is transported to the flue gas circulation component 2. The moisture in the outer cylinder 5 exchanges heat with the flue gas circulation component 2, and the heating component 3 balances the total amount of heat exchange. The flue gas treatment component of the present invention greatly increases the possibility of impurities in the flue gas being captured, realizes the recycling of the capture medium, reduces the maintenance cost of the equipment, and centrally processes the captured impurity particles to avoid secondary pollution. The removal of impurity particles can prevent salt from corroding the surface of the boiler and greatly increases the service life of the boiler. The present invention assists the removal of impurities from the metal balls and the conductive blocks 15 by rotating the conveyor belt 14, which not only ensures the reliability of the equipment operation, but also simplifies the drive structure and saves the manufacturing cost of the equipment. The mixing holes 333 in the inner sleeve 331 and the outer sleeve 332 of the present invention are set at the same deflection angle, and the air intake angles of the two are relatively set. The combustion gas is dispersed into multiple streams after input, and the air will be evenly dispersed into each combustion gas. The two blend with each other in the form of airflow collision. In this way, the present invention greatly improves the uniformity of air mixing in the combustion gas, ensuring that the combustion inside the heating tube 31 can be carried out thoroughly.

[0027] The flue gas treatment component 1 includes a transition box 11, an air intake block 12, an air outlet block 13, a conveyor belt 14, a conductive block 15, a recovery tank 16, and a contact block 17. The transition box 11 is tightly connected to the inner wall of the outer cylinder 5. The air intake block 12 and the air outlet block 13 are respectively arranged on both sides of the inner wall of the transition box 11. One end of the air intake block 12 is connected to the external flue gas pipeline, and the end of the air intake block 12 away from the external flue gas pipeline is connected to the interior of the transition box 11. One end of the air outlet block 13 is connected to the flue gas circulation component 2, and the other end of the air outlet block 13 is connected to the interior of the transition box 11. A conveyor belt 14 is arranged at the lower end of the interior of the transition box 11. The conveyor belt 14 is connected to the side wall of the transition box 11 through a bracket. A plurality of conductive blocks 15 are arranged on the belt 14, and the conductive blocks 15 are evenly distributed on the conveyor belt 14. A recovery groove is arranged below the conveyor belt 14, and the recovery groove is fastened to the inner bottom surface of the transition box 11. A contact block 17 is arranged on the side of the conveyor belt 14. There are two contact blocks 17, and the conductive blocks 15 are in contact with each other. One contact block 17 is flush with the conductive block 15 located above the conveyor belt 14, and the other contact block 17 is flush with the conductive block 15 located below the conveyor belt 14. The contact block 17 flush with the conductive block 15 above the conveyor belt 14 is connected to the negative pole of the external power supply, and the contact block 17 flush with the conductive block 15 below the conveyor belt 14 is connected to the external ground wire.The present invention is provided with a guiding slope on the side of the conveyor belt 14 close to the air intake block 12, a uniform electric field is provided above the conveyor belt 14, and a plurality of metal balls are provided inside the transition box 11. The metal balls are initially located on the conductive block 15 above the conveyor belt 14. At this time, the conductive block 15 is negatively charged, and the charge is transferred to the metal balls, generating a repulsive force between the metal balls and the conductive block 15, and the repulsive force is slightly smaller than the gravity of the metal balls. The metal balls move toward the side close to the air intake block 12 as the conveyor belt 14 moves, and the metal balls slide upward under the action of the guiding slope. After sliding up, the metal balls enter the uniform electric field area, and the force of the uniform electric field on the metal balls is vertically upward, which is slightly larger than the gravity of the metal balls. The metal balls are accelerated upward under the action of the uniform electric field. During the upward movement, the flue gas moves from the air intake block 12 to the air outlet block 13. The flue gas input into the air intake block 12 contains more salt particles and fly ash. The metal balls move toward the side of the air outlet block 13 under the action of the flue gas, and in this process The flue gas and the metal ball are in full contact, and the impurity particles in the flue gas are captured by the metal ball with static electricity. After the metal ball captures the impurities, the weight increases, exceeding the uniform electric field force, and the metal ball falls, leaving the uniform electric field area, and the metal ball falls on the conductive block 15 located above the conveyor belt 14. The conductive block 15 carries more negative charges. When the metal ball rolls with the conveyor belt 14, the surface of the metal ball contacts the conductive block 15, and the impurity particles are captured by the conductive block 15. The conductive block 15 drives the impurity particles to rotate. When the conductive block 15 rotates to the bottom of the conveyor belt 14, the conductive block 15 contacts the contact block 17 connected to the ground wire, and the charge on the conductive block 15 is transferred away, and the impurity particles fall off into the recovery tank 16. In this way, the present invention greatly improves the possibility of impurities in the flue gas being captured, realizes the recycling of the capture medium, reduces the equipment maintenance cost, and centrally processes the captured impurity particles to avoid secondary pollution. The removal of impurity particles can avoid the corrosion of salt on the surface of the boiler, and greatly improves the service life of the boiler.

[0028] Several vibration units are arranged inside the conveyor belt 14, and the vibration units include a displacement block 141, an active bar 142, and a sliding rod 143. The displacement block 141 is fastened to the frame of the conveyor belt 14, and a displacement cavity is arranged inside the displacement block 141. Vibration beads 144 and a vibration spring 145 are arranged inside the displacement cavity. One end of the vibration spring 145 is fastened to the vibration beads 144, and the other end of the vibration spring 145 is fastened to the side wall of the displacement cavity. A movable bar 142 is fixed on the side wall of the displacement block 141, and a slide groove is arranged inside the movable bar 142. A sliding rod 143 is arranged in the slide groove. The sliding rod 143 is slidably connected to the slide groove, and the sliding rod 143 is connected to the vibration beads 144 through a connecting rope. Several paddles are arranged on the inner ring of the conveyor belt 14. When the conveyor belt 14 is running, the paddle will drive the slide rod 143 to move, and the slide rod 143 will pull the vibrating beads 144 through the connecting rope. The vibrating beads 144 are symmetrically arranged. When the conveyor belt 14 rotates, the vibrating beads 144 will be driven to vibrate the upper and lower sides of the conveyor belt 14 at the same time. The vibrating conveyor belt 14 on the upper side is conducive to the impurities on the metal balls falling off, and the vibrating conveyor belt 14 on the lower side is conducive to the impurities on the conductive block 15 falling off. The present invention assists the impurities on the metal balls and the conductive block 15 to fall off by rotating the conveyor belt 14, which not only ensures the reliability of the equipment operation, but also simplifies the driving structure and saves the manufacturing cost of the equipment.

[0029] The smoke circulation component 2 includes a first heating tube 21, a second heating tube 22, a conversion bin 23, and a recovery bin 24. There are several first heating tubes 21 and second heating tubes 22. One end of the first heating tube 21 is connected to the smoke treatment component 1, and the other end of the first heating tube 21 is connected to the conversion bin 23. The conversion bin 23 is tightly connected to the outer cylinder 5. One end of the second heating tube 22 is tightly connected to the conversion bin 23, and the other end of the second heating tube 22 is tightly connected to the recovery bin 24. The recovery bin 24 is tightly connected to one end of the outer cylinder 5 away from the conversion bin 23. One end of the recovery bin 24 away from the second heating tube 22 is connected to the external smoke recovery pipeline. The second heating tube 22 is located below the first heating tube 21. When the high-temperature flue gas is distributed to each of the first heating tubes 21, the waste heat of the high-temperature flue gas will heat the moisture inside the outer cylinder 5. The first heating tube 21 is located above the second heating tube 22 because the water body with higher temperature is located on the upper side of the outer cylinder 5. The high-temperature flue gas first heats it so that it can evaporate quickly. The flue gas after one heat exchange is then transported to the second heating tube 22. The water temperature at the second heating tube 22 is relatively low, and the waste heat of the flue gas in the second heating tube 22 preheats it. The present invention can quickly generate steam and improve the working efficiency of the boiler through this segmented heating.

[0030] The first heating tube 21 and the second heating tube 22 are provided with spiral fins 211 on the outside. The spiral fins 211 can assist the heat exchange between the flue gas and the water inside the outer cylinder 5 on the one hand, and on the other hand, when the water flows inside the outer cylinder 5, the spiral fins 211 will vibrate, and when the spiral fins 211 vibrate, the water around the first heating tube 21 and the second heating tube 22 will be guided to move repeatedly along the spiral direction. The spiral movement of the water increases the heat exchange time and contact area between the first heating tube 21 and the second heating tube 22, while ordinary straight fins will hinder the flow of water on the one hand, and on the other hand, the recoil force of the straight fins on the water flow will also discharge the water flow to a place far away from the first heating tube 21 and the second heating tube 22, which is not conducive to the generation of steam.

[0031] The heating assembly 3 includes a heating tube 31, an air intake pump 32, and an air intake component 33. The heating tube 31 passes through the outer cylinder 5. The heating tube 31 and the two end surfaces of the outer cylinder 5 are tightly connected. One end of the heating tube 31 is connected to the air outlet of the air intake pump 32. The end of the heating tube 31 away from the air intake pump 32 is connected to the external tail gas recovery pipeline. The air intake of the air intake pump 32 is tightly connected to the air intake component 33. The heating tube 31 provided in the present invention is used to balance the waste heat of the exhaust gas. Since the waste heat of the exhaust gas cannot be output continuously and stably, it is necessary to set another set of heating tubes 31 inside the outer cylinder 5. The heating tube 31 will adjust the input gas volume according to the waste heat temperature of the exhaust gas, so as to ensure that the boiler can output steam continuously and stably.

[0032] The air intake component 33 includes an inner sleeve 331 and an outer sleeve 332. A sealing end face is arranged on one side of the inner sleeve 331 and the outer sleeve 332, and the other side of the inner sleeve 331 and the outer sleeve 332 is open. The inner sleeve 331 is located inside the outer sleeve 332. An annular mounting hole is arranged on the end face of the outer sleeve 332. The outer wall of the open end of the inner sleeve 331 is installed in the annular mounting hole. The open end of the inner sleeve 331 is connected to the gas delivery pipeline through a pipeline, and the open end of the outer sleeve 332 is fastened to the air intake of the air intake pump 32. A plurality of mixing holes 333 are arranged in the inner walls of the inner sleeve 331 and the outer sleeve 332. The mixing holes 333 in the inner sleeve 331 and the outer sleeve 332 are all inclined at the same deflection angle. The combustion gas is input from the open end of the inner sleeve 331, and the air is input from the mixing hole 333 on the outer sleeve 332. The inner sleeve 331 and the mixing holes 333 in the outer sleeve 332 of the present invention are set at the same deflection angle, and the air intake angles of the two are relatively set. The combustion gas is dispersed into multiple streams after input, and the air will be evenly dispersed into each stream of combustion gas. The two blend with each other in the form of airflow collision. In this way, the present invention greatly improves the uniformity of air mixing in the combustion gas, ensuring that the combustion inside the heating tube 31 can be carried out thoroughly.

[0033] A plurality of annular guide rings 51 are arranged inside the outer cylinder 5, and inclined surfaces are arranged on both sides of the annular guide rings 51, and notches are arranged on the annular guide rings 51. The notches of the present invention are randomly arranged to divide the annular guide rings 51 into different lengths. When the boiler is in normal use, the input water will impact the two ends of the outer cylinder 5. The inclined surfaces on the annular guide rings 51 arranged in the present invention guide part of the flow to the center of the outer cylinder 5, weakening the axial impact force. The notches on the annular guide rings 51 can divide the complete fluid on the one hand, so that the impact direction will not converge in the same direction. On the other hand, the divided annular guide rings 51 will change the local structure of the outer cylinder 5, so that the local resonance frequency of the boiler is different when it is in use. The present invention prolongs the service life of the boiler in this way.

[0034] The working principle of the present invention is as follows: the metal ball in the transition box 11 is initially located on the conductive block 15 above the conveyor belt 14. At this time, the conductive block 15 is negatively charged, and the charge is transferred to the metal ball. A repulsive force is generated between the metal ball and the conductive block 15. The metal ball moves toward the side close to the air inlet block 12 as the conveyor belt 14 moves. The metal ball slides upward under the action of the guiding slope. After sliding up, the metal ball enters the uniform electric field area. The uniform electric field exerts a vertical force on the metal ball. The metal ball accelerates upward under the action of the uniform electric field. During the upward movement, the flue gas moves from the air inlet block 12 to the air outlet block 13. The flue gas input into the air inlet block 12 contains more salt particles and fly ash. The metal ball moves toward the side of the air outlet block 13 under the action of the flue gas. In this process, the flue gas and the metal ball are fully in contact, and the impurity particles in the flue gas are captured by the metal ball with static electricity. After the metal ball captures the impurities, the weight increases, exceeding the uniform electric field force, and the metal ball falls, leaving the uniform electric field area, and falls on the conductive block 15 located above the conveyor belt 14. The conductive block 15 carries more negative charges. When the metal ball rolls with the conveyor belt 14, the surface of the metal ball contacts the conductive block 15, and the impurity particles are captured by the conductive block 15. The conductive block 15 drives the impurity particles to rotate. When the conductive block 15 rotates to the bottom of the conveyor belt 14, the conductive block 15 contacts the contact block 17 connected to the ground wire, and the charge on the conductive block 15 is transferred away, and the impurity particles fall into the recovery tank 16. When the high-temperature flue gas is divided into each first heating tube 21, the waste heat of the high-temperature flue gas will heat the moisture inside the outer cylinder 5, and the heating tube 31 will adjust the input gas volume according to the waste heat temperature of the exhaust gas, so as to ensure that the boiler can continuously and stably output steam.

[0035] It should be noted that, in this document, relational terms such as first and second, etc., are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-salinity flue gas hazardous waste heat boiler, characterized in that: The boiler comprises a flue gas treatment component (1), a flue gas circulation component (2), a heating component (3), a base (4), and an outer cylinder (5); the bottom of the outer cylinder (5) is tightly connected to the top of the base (4); a water inlet pipe and a steam pipe are arranged on the outer cylinder (5); the steam pipe is connected to a side of the outer cylinder away from the base; the water inlet pipe is connected to a side wall of the outer cylinder; a one-way valve is arranged inside the water inlet pipe; the flue gas treatment component (1), the flue gas circulation component (2), the heating component (3) and the outer cylinder (5) are connected; one end of the flue gas treatment component (1) is tightly connected to the inner wall of the outer cylinder (5); the other end of the flue gas treatment component (1) is connected to the flue gas circulation component (2); the flue gas circulation component (2) is fixed to the outer cylinder (5) on the side wall, the two ends of the heating component (3) are fixed on the side walls at the two ends of the outer cylinder (5), the flue gas treatment component (1) comprises a transition box (11), an air intake block (12), an air outlet block (13), a conveyor belt (14), a conductive block (15), a recovery tank (16), and a contact block (17), the transition box (11) and the inner side wall of the outer cylinder (5) are tightly connected, the inner side wall of the transition box (11) is respectively provided with an air intake block (12) and an air outlet block (13), one end of the air intake block (12) is connected to an external flue gas pipeline, the end of the air intake block (12) away from the external flue gas pipeline is connected to the interior of the transition box (11), one end of the air outlet block (13) is connected to the flue gas circulation component (2), and the air outlet block (13) The other end is connected to the interior of the transition box (11); a conveyor belt (14) is arranged at the lower end of the interior of the transition box (11); the conveyor belt (14) is connected to the side wall of the transition box (11) through a bracket; a plurality of conductive blocks (15) are arranged on the conveyor belt (14); the conductive blocks (15) are evenly distributed on the conveyor belt (14); a recovery trough is arranged below the conveyor belt (14); the recovery trough is tightly connected to the bottom surface of the interior of the transition box (11); a contact block (17) is arranged on the side of the conveyor belt (14); the contact block (17) has two pieces; the conductive block (15) is in contact with the contact block (17); one contact block (17) is flush with the conductive block (15) located above the conveyor belt (14); and the other contact block (17) is arranged on the side of the conveyor belt (14); The contact block (17) is flush with the conductive block (15) located below the conveyor belt (14), the contact block (17) flush with the conductive block (15) above the conveyor belt (14) is connected to the negative pole of the external power supply, and the contact block (17) flush with the conductive block (15) below the conveyor belt (14) is connected to the external ground wire. The smoke circulation component (2) includes a first heating tube (21), a second heating tube (22), a conversion bin (23), and a recovery bin (24). There are a plurality of the first heating tube (21) and the second heating tube (22). One end of the first heating tube (21) is connected to the smoke treatment component (1), and the other end of the first heating tube (21) is connected to the conversion bin (23). The conversion bin (23) is tightly connected to the outer cylinder (5).One end of the second heating tube (22) is tightly connected to the conversion chamber (23), and the other end of the second heating tube (22) is tightly connected to the recovery chamber (24). The recovery chamber (24) is tightly connected to an end of the outer cylinder (5) away from the conversion chamber (23). An end of the recovery chamber (24) away from the second heating tube (22) is connected to an external smoke recovery pipeline. The second heating tube (22) is located below the first heating tube (21).

2. A high-salinity flue gas hazardous waste heat boiler according to claim 1, characterized in that: A plurality of vibration units are arranged inside the conveyor belt (14), and the vibration units include a displacement block (141), a movable bar (142), and a sliding rod (143). The displacement block (141) is fastened to the frame of the conveyor belt (14). A displacement cavity is arranged inside the displacement block (141). A vibration bead (144) and a vibration spring (145) are arranged inside the displacement cavity. One end of the vibration spring (145) is fastened to the vibration bead (144), and the other end of the vibration spring (145) is fastened to the side wall of the displacement cavity. A movable bar (142) is fixed on the side wall of the displacement block (141). A slide groove is arranged inside the movable bar (142). A sliding rod (143) is arranged in the slide groove. The sliding rod (143) is slidably connected to the slide groove. The sliding rod (143) is connected to the vibration bead (144) through a connecting rope. A plurality of paddles are arranged on the inner ring of the conveyor belt (14).

3. A high-salinity flue gas hazardous waste heat boiler according to claim 2, characterized in that: Spiral fins (211) are arranged outside the first heating tube (21) and the second heating tube (22).

4. The high-salinity flue gas hazardous waste heat boiler according to claim 1, characterized in that: The heating assembly (3) comprises a heating tube (31), an air intake pump (32), and an air intake component (33); the heating tube (31) passes through the outer cylinder (5); the heating tube (31) and the outer cylinder (5) are tightly connected at both end surfaces; one end of the heating tube (31) is connected to the air outlet of the air intake pump (32); the end of the heating tube (31) away from the air intake pump (32) is connected to an external exhaust gas recovery pipeline; and the air intake of the air intake pump (32) and the air intake component (33) are tightly connected.

5. A high-salinity flue gas hazardous waste heat boiler according to claim 4, characterized in that: The air intake component (33) comprises an inner sleeve (331) and an outer sleeve (332). A sealing end face is arranged on one side of the inner sleeve (331) and the outer sleeve (332), and the other side of the inner sleeve (331) and the outer sleeve (332) is open. The inner sleeve (331) is located inside the outer sleeve (332). An annular mounting hole is arranged on the end face of the outer sleeve (332). The outer wall of the open end of the inner sleeve (331) is mounted in the annular mounting hole. The open end of the inner sleeve (331) is connected to the gas transmission pipeline through a pipeline. The open end of the outer sleeve (332) is tightly connected to the air intake of the air intake pump (32). A plurality of mixing holes (333) are arranged in the inner walls of the inner sleeve (331) and the outer sleeve (332). The mixing holes (333) in the inner sleeve (331) and the outer sleeve (332) are all inclined at the same deflection angle.

6. The high-salinity flue gas hazardous waste heat boiler according to claim 1, characterized in that: A plurality of annular guide rings (51) are arranged inside the outer cylinder (5), inclined surfaces are arranged on both sides of the annular guide rings (51), and notches are arranged on the annular guide rings (51).

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