CN113390083A - Fixed bed continuous type upper air suction furnace power generation system for waste treatment - Google Patents

Abstract

The invention discloses a fixed bed continuous type upper air suction furnace power generation system for waste treatment, which comprises a furnace body and a steam generation structure, wherein the waste is dried, pyrolyzed and combusted at low temperature in the furnace by adopting a new process of low-temperature pyrolysis incineration, so that the defects caused by high-temperature combustion are avoided, the waste is fully combusted, incombustible ash and other non-smelting slag are avoided, the furnace achieves higher combustion efficiency on the basis of fully inhibiting the generation of harmful substances such as dioxin, polycyclic hydrocarbon, aldehydes, carbon dioxide and the like through the novel structure of the furnace, iron products are collected by the arranged magnetic rods to be prevented from entering the furnace body, and the adjustable grate frame structure is arranged, so that larger residues can be conveniently discharged, the heat generated by pyrolysis can be utilized for power generation, the waste of resources is avoided, and the tail gas generated by pyrolysis can be effectively treated, reduce the pollution to the environment.

Description

Fixed bed continuous type upper air suction furnace power generation system for waste treatment

Technical Field

The invention relates to the technical field of gasification furnaces, in particular to a power generation system of a fixed bed continuous type upper air suction gasification furnace for waste treatment.

Background

Generally, a high-temperature combustion method is adopted in a waste incinerator, so that the efficiency of the incinerator can be improved, and harmful gases such as dioxin and the like can be decomposed at high temperature for harmless treatment.

However, the garbage is burnt at high temperature, so that the burning time of the garbage in the furnace is shortened, and the following defects are caused:

firstly, the heat exchange such as high-temperature combustion, heat radiation, heat convection and the like is improved, and meanwhile, a part of available combustible substances are not utilized and directly burnt, so that the utilization rate of heat energy is reduced. Meanwhile, in order to realize sufficient combustion, the air excess coefficient is large, and the fly ash content in the flue gas is high. And a considerable part of dioxin and heavy metals are attached to the surface of the fly ash. Resulting in an increase in the cost of the subsequent flue gas purification.

Secondly, due to high-temperature combustion, ash content, metals and other incombustible substances of the garbage are in a molten state, slag bonding is generated in the cooling process, the size is larger sometimes, slag discharging is difficult, a slag breaking mechanism must be added, the complexity of the furnace is increased, and the manufacturing and using cost of the furnace is increased. Meanwhile, due to high-temperature incineration, the incineration time is short, so that unburned combustible substances are mixed in the slag, and the difficulty of later-stage harmless treatment of the slag is increased.

Moreover, different wastes have different combustion characteristics and requirements, so that the high-temperature combustion needs to be maintained, different requirements are made on the structure and the technological parameters of the furnace, and the application range of the furnace is narrowed.

Meanwhile, most of wastes contain ironwork and cannot be gasified, but the feeding end of the existing gasification furnace lacks the result of collecting the ironwork, and most of the existing grate frames are of fixed structures and cannot discharge massive residues, so that the use requirements of people cannot be met.

In addition, most of the heat generated during the treatment of the waste cannot be fully used, so that a large amount of heat energy is wasted, which results in energy waste, and the waste subjected to the pyrolysis treatment of the furnace body also generates a part of pollution gas, but most of the existing gasification furnaces lack a tail gas treatment device, and therefore a fixed bed continuous type updraft gasifier power generation system for waste treatment is provided.

Disclosure of Invention

In order to overcome the defects in the background art, the invention discloses a power generation system of a fixed bed continuous upper suction gasifier for waste treatment, which adopts a new process of low-temperature pyrolysis incineration, the waste is dried, pyrolyzed and combusted at low temperature in a furnace, thereby avoiding the defects caused by high-temperature combustion, fully combusting the waste, fully utilizing heat energy, and not smelting slag such as incombustible ash, simultaneously, the furnace can still achieve higher combustion efficiency on the basis of fully restraining the generation of harmful substances such as dioxin, polycyclic hydrocarbon, aldehyde, carbon dioxide and the like through the novel structure of the furnace, iron products can be conveniently collected and prevented from entering the interior of the furnace body through the arranged magnetic rods, and the adjustable grate frame structure is arranged, thereby facilitating the discharge of larger residues and generating power by utilizing the heat generated by pyrolysis, thereby the waste of resource has been avoided, moreover can carry out comparatively effectual processing to the tail gas that the pyrolysis produced, reduce the pollution that causes the environment.

In order to realize the purpose, the invention adopts the following technical scheme:

a fixed bed continuous type updraft furnace power generation system for waste treatment comprises a furnace body and a steam generation structure, wherein a dispersion frame is arranged inside the furnace body, an exhaust port is formed in the top end of the furnace body, a storage bin is arranged at the bottom end of the furnace body, a feeding pipe is arranged on the side surface of the furnace body, a grate frame is arranged at the position, corresponding to the storage bin, of the bottom end of the furnace body, an air inlet channel is formed inside the storage bin below the grate frame, the grate frame is arranged at the bottom end inside the air inlet channel to adjust power, a deslagging structure is arranged on the side surface of the bottom end of the storage bin, a feeding bin is arranged at the top end of the feeding pipe, a pushing structure is arranged at the position, corresponding to the feeding pipe, inside the feeding bin, and a combustion-supporting gas air inlet structure and an excessive secondary pneumatic power structure are arranged on the side surface of the furnace body;

the steam generating structure is connected with a steam generating structure, the steam generating structure comprises a low-pressure steam turbine, a high-medium pressure steam turbine and an engine, the low-pressure steam turbine, the high-medium pressure steam turbine and the engine are connected through a transmission shaft, a water tank is mounted at the bottom end of the low-pressure steam turbine, a condenser is mounted in the water tank, a water outlet pipe is mounted on the side surface of the water tank, an air guide pipe is connected between the low-pressure steam turbine and the high-medium pressure steam turbine, the top end of the air guide pipe is communicated with a low-pressure steam inlet pipe, and a high-medium pressure return pipe, a high-pressure steam inlet pipe and a medium-pressure steam inlet pipe are sequentially mounted at the top end of the high-medium pressure steam turbine;

the steam generating structure comprises a first water pump, the water outlet pipe is connected with the first water pump through a condensed water inlet pipe, a condensed water preheating pipe is connected to the water outlet end of the first water pump, the condensed water preheating pipe is arranged above the interior of the furnace body, and the condensed water preheating pipe is connected with a condensed water discharge pipe;

the low-pressure steam drum, the water pump II and the water pump III are sequentially connected to the condensed water discharge pipe, the low-pressure steam drum is connected with a low-pressure evaporator and a low-pressure superheater, the low-pressure evaporator and the low-pressure superheater are arranged below a condensed water preheating pipe in the furnace body, the low-pressure superheater is connected with a low-pressure steam inlet pipe through a pipeline, the water pump II is connected with a medium-pressure steam drum through a pipeline, the medium-pressure steam drum is connected with a medium-pressure evaporator and a medium-pressure superheater, the medium-pressure superheater is also connected with a backflow pipe, the medium-pressure evaporator, the medium-pressure superheater and the backflow pipe are arranged below the low-pressure superheater in the furnace body, the backflow pipe is connected with a high-medium-pressure backflow pipe through a pipeline, the medium-pressure superheater is connected with a medium-pressure steam inlet pipe through a pipeline, the water pump III is connected with a high-pressure steam drum, and the high-pressure steam drum is connected with a high-pressure evaporator and a high-pressure superheater, the high-pressure evaporator and the high-pressure superheater are arranged below the dispersion frame, and the high-pressure superheater is connected with the high-pressure steam inlet pipe through a pipeline;

the top end of the exhaust port is connected with a flue gas treatment tower through a U-shaped pipe, and the flue gas treatment tower is connected with a chimney through a guide pipe.

The dispersion frame is including installing the fixed plate in the furnace body inside, the dispersion board is installed on the top of fixed plate, the dispersion board sets up to network structure.

The slope passageway has been seted up to the inside of storing the storehouse, the lowest position department of slope passageway installs the pipe of slagging tap, arrange the sediment structure including setting up the motor of slagging tap on the pipe of slagging tap, the output shaft of the motor of slagging tap runs through and extends to the inside of the pipe of slagging tap and is connected with screw conveyer, the row's of slag tap mouth is installed to the bottom of the pipe of slagging tap.

The grate frame is including setting up the end ring in the furnace body bottom, the end ring is connected with the apical ring through the go-between, the bottom of apical ring and go-between all installs the connection card pole, the through-hole has been seted up to the position department that corresponds the connection card pole on end ring and the go-between, the bottom of connecting the card pole sets up the below at the through-hole.

The utility model discloses a comb frame adjusting power, including the installation cavity that sets up storing the storehouse bottom, comb frame motor power is installed to the bottom of installation cavity, the outer tube is installed on comb frame motor power's output shaft top, the inside threaded connection of outer tube has the screw rod, the top of screw rod is passed through the connecting rod and is connected with the bottom of apical ring, inlet channel's internally mounted has the inclined hole, correspond the inclined hole on the connecting rod and install the platform that blocks.

The feed inlet has been seted up on the top in feeding storehouse, the side-mounting in feeding storehouse has crushing motor, the output shaft of crushing motor runs through and extends to the inside in feeding storehouse and is connected with crushing roller set, the other end of crushing roller set passes through gear connection structural connection.

The propelling movement structure is including installing the set-square inside the feeding storehouse, the set-square sets up the below at crushing roller set, be connected with the pusher through electric putter on the face that the set-square corresponds the inlet pipe, the pusher sets up with the inner wall of inlet pipe is tangent.

The feed bin side of crushing roller group below has seted up the mounting hole, the inside threaded connection of mounting hole has the erection column, install the bar magnet on the face that the erection column corresponds the inlet pipe, the toper separates the net is installed to the bottom in feed bin, install the drain pipe on the feed bin of toper separation net below, the evaporation tank has been seted up on the top of storage bin, the bottom setting of drain pipe is in the inside of evaporation tank.

The combustion-supporting gas air inlet structure comprises a first fan, the first fan is connected with a first connecting pipe through a first preheating pipe, the first preheating pipe is arranged inside a furnace body above a dispersion frame, an air outlet of the first connecting pipe is arranged in an air inlet channel, the excessive secondary wind power structure comprises a second fan, the second fan is connected with a dispersion pipe through a second preheating pipe, the second preheating pipe is also arranged inside the furnace body above the dispersion frame, and an air outlet of the dispersion pipe is arranged in the furnace body between the grate frame and the dispersion frame.

A first drainage fan is installed inside the U-shaped pipe, a second drainage fan is installed inside a chimney above the guide pipe, and an exhaust port is installed at the top end of the chimney;

a conical frame is arranged inside the flue gas treatment tower above the guide pipe, a collection bin is arranged outside the flue gas treatment tower outside the conical frame, a conical opening is formed in the top end of the collection bin, a liquid storage tank is arranged inside the collection bin, the bottom end of the conical opening is communicated with the liquid storage tank through a liquid inlet tank, an inner water storage tank is formed inside the conical frame, the inner water storage tank and the liquid storage tank are arranged through a communicating pipe, an outer overflow groove is formed in the inner wall of the liquid storage tank, an inner overflow groove is formed in the top end of the water storage tank, and the outer overflow groove and the inner overflow groove are arranged at equal height;

a funnel-shaped collecting frame is arranged in the smoke treatment tower below the guide pipe, a mounting hole is formed in the funnel-shaped collecting frame, a sewage discharge hole is formed in the position, corresponding to the mounting hole, of the bottom end of the smoke treatment tower, a closed pipe is in threaded connection with the inside of the sewage discharge hole and the mounting hole, and a filter screen is arranged on the closed pipe between the sewage discharge hole and the mounting hole;

the top end of one side of the guide pipe close to the flue gas treatment tower is provided with an outward protruding baffle, and the bottom end of one side of the guide pipe close to the chimney is provided with a waterproof plate.

Due to the adoption of the technical scheme, the invention has the following beneficial effects:

the power generation system of the fixed bed continuous upper suction gasifier for waste treatment adopts the tower-shaped adjustable grate frame, and compared with the common planar grate frame, the power generation system increases the contact area with the combustion objects in the furnace, namely, the air inlet area, and is beneficial to uniformly feeding air to all positions of garbage, so that the garbage solid residues are combusted at all positions;

the primary air intake is to blow preheated air from the bottom of the furnace, because of low-temperature combustion, the combustion speed is slow, especially in the solid residues in the ember combustion layer and the final combustion layer, the combustion condition is poor, if the air is likely to extinguish to stop combustion, more combustible substances are retained in ash slag, therefore, hot air is blown, a good combustion atmosphere is created, the solid residues of the garbage can be completely combusted, and simultaneously, the control of the low-temperature slow combustion of the whole garbage is simple and easy to implement;

the method is characterized in that a large amount of flue gas generated from drying and pyrolysis of garbage to combustion is blown with excessive secondary air, the flue gas is rapidly brought into a secondary combustion chamber and is combusted in the secondary combustion chamber, and the flue gas and solid residues are combusted separately, so that the environmental temperature for combusting the garbage solid residues is effectively controlled, and the aim of low-temperature combustion is fulfilled;

the middle part of the furnace is provided with a reticular clapboard which can lead the flue gas to pass smoothly and prevent heat conduction such as heat radiation and the like;

can adsorb the ironwork that falls down from crushing roller group through the detachable bar magnet of installation and collect, can effectually prevent that ironwork from entering into the inside of furnace body from this, make sewage can enter into the inside of evaporating groove along the drain pipe through the toper separation net and handle, thereby can effectual reduction enter into the inside water of furnace body, the production of the inside vapor of furnace body has been reduced, work through to comb frame driving motor is controlled, can be to the inside bottom ring of comb frame from this, the distance between top ring and the go-between is adjusted, be convenient for discharge great residue from this.

The heat that can utilize the pyrolysis to produce generates electricity to avoid the waste of resource, moreover can carry out comparatively effectual processing to the tail gas that the pyrolysis produced, reduce the pollution that causes the environment.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective side view of the present invention;

FIG. 3 is a first cross-sectional view of the present invention;

FIG. 4 is a second cross-sectional view of the present invention;

FIG. 5 is an enlarged partial view of the end A1 of the present invention;

1. a furnace body; 2. a dispersion rack; 3. an exhaust port; 4. a storage bin; 5. a feed pipe; 6. a grate frame; 7. an air intake passage; 8. the power of the grate frame is adjusted; 9. a slag discharging structure; 10. a feeding bin; 11. a pushing structure; 12. a combustion-supporting gas inlet structure; 13. an excessive secondary wind power structure; 14. a fixing plate; 15. a dispersion plate; 16. an inclined channel; 17. a slag pipe; 18. a slag tapping motor; 19. a slag discharge port; 20. a screw conveyor; 21. a bottom ring; 22. a top ring; 23. a connecting ring; 24. connecting the clamping rod; 25. a through hole; 26. a connecting rod; 27. a screw; 28. an inclined hole; 29. a blocking table; 30. a mounting cavity; 31. a grate frame power motor; 32. an outer tube; 33. a feed inlet; 34. a grinding motor; 35. a crushing roller set; 36. a gear connection structure; 37. a set square; 38. an electric push rod; 39. pushing the head; 40. mounting holes; 41. mounting a column; 42. a magnetic bar; 43. a conical separation net; 44. a drain pipe; 45. an evaporation tank; 46. a first fan; 47. a first preheating pipe; 48. a first connecting pipe; 49. a second fan; 50. a second preheating pipe; 51. a dispersion pipe; 52. a steam generating structure; 53. a steam power generation structure; 54. a U-shaped pipe; 55. a flue gas treatment tower; 56. a conduit; 57. a chimney; 58. a low pressure turbine; 59. a high and medium pressure steam turbine; 60. an engine; 61. a drive shaft; 62. a water tank; 63. a condenser; 64. a water outlet pipe; 65. an air duct; 66. a low pressure steam inlet pipe; 67. a high and medium pressure return conduit; 68. a high pressure steam inlet pipe; 69. a medium pressure steam inlet pipe; 70. a condensed water inlet pipe; 71. a first water pump; 72. a condensate preheating pipe; 73. a condensed water discharge pipe; 74. a low pressure steam drum; 75. a low pressure evaporator; 76. a low pressure superheater; 77. a second water pump; 78. a medium pressure steam drum; 79. a medium pressure evaporator; 80. a medium pressure superheater; 81. a return conduit; 82. a third water pump; 83. a high pressure steam drum; 84. a high pressure evaporator; 85. a high pressure superheater; 86. a first drainage fan; 87. a conical frame; 88. a collection bin; 89. a tapered opening; 90. a liquid inlet tank; 91. a liquid storage tank; 92. an inner water storage tank; 93. an overflow chute; 94. an inner overflow launder; 95. a communicating pipe; 96. a funnel-shaped collection rack; 97. mounting holes; 98. a sewage draining hole; 99. closing the tube; 100. a filter screen; 101. an outward protruding baffle; 102. a waterproof sheet; 103. an exhaust port; 104. and a second drainage fan.

Detailed Description

The present invention will be explained in detail by the following examples, which are disclosed for the purpose of protecting all technical improvements within the scope of the present invention.

The fixed bed continuous type upward-suction gasifier power generation system for waste treatment comprises a furnace body 1 and a steam generation structure 52, wherein a dispersion frame 2 is arranged inside the furnace body 1, so that gas inside the furnace body 1 can be distributed conveniently, an exhaust port 3 is formed in the top end of the furnace body 1, a storage bin 4 is arranged at the bottom end of the furnace body 1, so that slag can be stored conveniently, a feeding pipe 5 is arranged on the side surface of the furnace body 1, a grate frame 6 is arranged at the position, corresponding to the storage bin 4, of the bottom end of the furnace body 1, an air inlet channel 7 is formed inside the storage bin 4 below the grate frame 6, a grate frame adjusting power 8 is arranged at the inner bottom end of the air inlet channel 7, the grate frame 6 is adjusted through the grate frame adjusting power 8, a slag discharging structure 9 is arranged on the side surface of the bottom end of the storage bin 4, so that residues can be discharged conveniently, a feeding bin 10 is arranged at the top end of the feeding pipe, the pushing structure 11 can not only push materials, but also seal the feeding pipe 5, a combustion-supporting gas air inlet structure 12 and an excessive secondary wind power structure 13 are installed on the side surface of the furnace body 1, and wind power transmission to the inside of the furnace body 1 is facilitated through the combustion-supporting gas air inlet structure 12 and the excessive secondary wind power structure 13.

The steam generating structure 52 is connected with a steam generating structure 53, the steam generating structure 53 comprises a low pressure turbine 58, a high and medium pressure turbine 59 and an engine 60, the low pressure turbine 58 and the high and medium pressure turbine 59 are driven by steam to rotate, the engine 60 is driven to rotate, so as to perform power generation operation, the low pressure turbine 58, the high and medium pressure turbine 59 and the engine 60 are connected through a transmission shaft 61, a water tank 62 is installed at the bottom end of the low pressure turbine 58, a condenser 63 is installed inside the water tank 62, the steam in the water tank 62 is cooled through the condenser 63, secondary use is facilitated by driving, a water outlet pipe 64 is installed on the side surface of the water tank 62, a gas guide pipe 65 is connected between the low pressure turbine 58 and the high and medium pressure turbine 59, and the top end of the gas guide pipe 65 is communicated with a low pressure steam inlet pipe 66, the method comprises the following steps of enabling used steam in a high-medium pressure turbine 59 to enter a low-pressure turbine 58 along an air duct 65 so as to drive the low-pressure turbine 58 to do work, wherein a high-medium pressure return pipe 67, a high-pressure steam inlet pipe 68 and a medium-pressure steam inlet pipe 69 are sequentially mounted at the top end of the high-medium pressure turbine 59; the high-medium pressure return pipe 67 facilitates the steam in the high-medium pressure turbine 59 to flow back to the medium pressure superheater 80 for heating, so as to be used again;

the steam generating structure 52 comprises a first water pump 71, the water outlet pipe 64 is connected with the first water pump 71 through a condensed water inlet pipe 70, a condensed water preheating pipe 72 is connected to the water outlet end of the first water pump 71, the condensed water preheating pipe 72 is arranged above the interior of the furnace body 1, and the condensed water preheating pipe 72 is connected with a condensed water outlet pipe 73; the first water pump 71 works to enable water in the water tank 62 to enter the steam generating structure 52 arranged inside the furnace body 1, so that steam is generated;

the condensed water discharge pipe 73 is sequentially connected with a low-pressure steam pocket 74, a second water pump 77 and a third water pump 82, the low-pressure steam pocket 74 is connected with a low-pressure evaporator 75 and a low-pressure superheater 76, the low-pressure evaporator 75 and the low-pressure superheater 76 are both arranged below a condensed water preheating pipe 72 in the furnace body 1, the low-pressure superheater 76 is connected with a low-pressure steam inlet pipe 66 through a pipeline, the second water pump 77 is connected with a medium-pressure steam pocket 78 through a pipeline, the medium-pressure steam pocket 78 is connected with a medium-pressure evaporator 79 and a medium-pressure superheater 80, the medium-pressure superheater 80 is also connected with a return conduit 81, the medium-pressure evaporator 79, the medium-pressure superheater 80 and the return conduit 81 are all arranged below the low-pressure steam inlet pipe 76 in the furnace body 1, the return conduit 81 is connected with a high-medium-pressure return pipe 67 through a pipeline, and the medium-pressure superheater 80 is connected with the medium-pressure steam inlet pipe 69 through a pipeline, the third water pump 82 is connected with a high-pressure steam packet 83, the high-pressure steam packet 83 is connected with a high-pressure evaporator 84 and a high-pressure superheater 85, the high-pressure evaporator 84 and the high-pressure superheater 85 are arranged below the dispersion frame 2, and the high-pressure superheater 85 is connected with the high-pressure steam inlet pipe 68 through a pipeline; heating the water by introducing the water into the low-pressure evaporator 75, the low-pressure superheater 76, the intermediate-pressure evaporator 79, the intermediate-pressure superheater 80, the high-pressure evaporator 84, and the high-pressure superheater 85 to generate steam, and introducing the steam into the steam power generation structure 53 to perform power generation operation;

the top end of the exhaust port 3 is connected with a flue gas treatment tower 55 through a U-shaped pipe 54, and the flue gas treatment tower 55 is connected with a chimney 57 through a guide pipe 56.

Preferably: the dispersing frame 2 comprises a fixing plate 14 installed inside the furnace body 1, a dispersing plate 15 is installed on the top end of the fixing plate 14, and the dispersing plate 15 is of a net-shaped structure, so that airflow passing through the dispersing plate 15 can flow uniformly.

Preferably: store the inside of storehouse 4 and seted up slope passageway 16, the residue falls into the inside of slope passageway 16, then reach the inside of slagging tap pipe 17 along slope passageway 16, the lowest position department of slope passageway 16 installs the pipe 17 of slagging tap, arrange sediment structure 9 including setting up the motor 18 of slagging tap on the pipe 17 of slagging tap, the output shaft of the motor 18 of slagging tap runs through and extends to the inside of slagging tap pipe 17 and is connected with screw conveyer frame 20, row's cinder notch 19 is installed to the bottom of the pipe 17 of slagging tap, it rotates to drive screw conveyer frame 20 through 18 work of the motor of slagging tap, make the residue discharge from row's cinder notch 19 position department from this.

Preferably: comb frame 6 is including setting up the end ring 21 in furnace body 1 bottom, end ring 21 is connected with the apical ring 22 through go-between 23, connect kelly 24 is all installed to the bottom of apical ring 22 and go-between 23, through-hole 25 has been seted up to the position department that corresponds on end ring 21 and the go-between 23 and connect kelly 24, the bottom setting of connecting kelly 24 is in the below of through-hole 25, make comb frame 6 can adjust the distance between end ring 21 and go-between 23 and apical ring 22 according to the demand that uses, thereby be convenient for great residue to pass through in the inside gap of comb frame 6.

Preferably: the grate frame adjusting power 8 comprises an installation cavity 30 arranged at the bottom end of the storage bin 4, a grate frame power motor 31 is arranged at the bottom end of the installation cavity 30, an outer pipe 32 is arranged at the top end of an output shaft of the grate frame power motor 31, a screw 27 is in threaded connection with the inner part of the outer pipe 32, the top end of the screw 27 is connected with the bottom end of the top ring 22 through a connecting rod 26, the grate frame power motor 31 drives the outer pipe 32 to rotate, so that the height of the screw 27 in the outer pipe 32 can be conveniently adjusted, the position of the top ring 22 can be adjusted under the driving of the connecting rod 26, an inclined hole 28 is arranged in the air inlet channel 7, a blocking platform 29 is arranged on the connecting rod 26 corresponding to the inclined hole 28, a plurality of holes are arranged in the blocking platform 29, the air flow can conveniently pass through, the effect of preventing residues from blocking the air inlet channel 7 is mainly achieved, the blocking platform 29 is lifted when the top ring 22 is lifted, thereby pushing the residue that has entered the inside of the intake passage 7 to the outside of the intake passage 7.

Preferably: feed inlet 33 has been seted up on the top of feeding storehouse 10, and the side-mounting of feeding storehouse 10 has crushing motor 34, and the output shaft of crushing motor 34 runs through and extends to the inside of feeding storehouse 10 and is connected with crushing roller set 35, and crushing roller set 35 is two crushing rollers to grinding, handles the operation to the material that enters into in feeding storehouse 10 through these crushing rollers, and the other end of crushing roller set 35 passes through gear connection structure 36 and connects.

Preferably: propelling movement structure 11 is including installing the set square 37 inside feeding storehouse 10, the setting of set square 37 can effectually prevent piling up of material, set square 37 sets up the below at crushing roller group 35, be connected with pusher 39 through electric putter 38 on the face that set square 37 corresponds inlet pipe 5, pusher 39 sets up with the inner wall of inlet pipe 5 is tangent, carry out reciprocal operation through electric putter 38, can drive pusher 39 from this and move, add the inside of inlet pipe 5 to the material from feeding storehouse 10 from this.

Preferably: the mounting hole 40 has been seted up to the feeding storehouse 10 side of crushing roller group 35 below, the inside threaded connection of mounting hole 40 has erection column 41, install bar magnet 42 on the face that the erection column 41 corresponds inlet pipe 5, be convenient for collect ironwork in the waste through bar magnet 42, toper spacer screen 43 is installed to the bottom of feeding storehouse 10, install drain pipe 44 on the feeding storehouse 10 of toper spacer screen 43 below, evaporation tank 45 has been seted up on the top of storage storehouse 4, the bottom setting of drain pipe 44 is in the inside of evaporation tank 45, sewage passes through then in the toper spacer screen 43 along drain pipe 44 in arriving evaporation tank 45, carry out evaporation treatment to sewage from this.

Preferably: the combustion-supporting air inlet structure 12 comprises a first fan 46, the first fan 46 is connected with a first connecting pipe 48 through a first preheating pipe 47, the first preheating pipe 47 is arranged inside the furnace body 1 above the dispersing frame 2, an air outlet of the first connecting pipe 48 is arranged in the air inlet channel 7, combustion-supporting air added into the first fan 46 is preheated through heat in smoke, the utilization rate of resources is improved, the excess secondary air power structure 13 comprises a second fan 49, the second fan 49 is connected with a dispersing pipe 51 through a second preheating pipe 50, the second preheating pipe 50 is also arranged inside the furnace body 1 above the dispersing frame 2, an air outlet of the dispersing pipe 51 is arranged in the furnace body 1 between the grate frame 6 and the dispersing frame 2, secondary air supply is carried out inside the furnace body 1 through the second fan 49, and therefore the combustion effect inside the furnace body 1 is guaranteed.

Preferably: a first drainage fan 86 is installed inside the U-shaped pipe 54, a second drainage fan 104 is installed inside a chimney 57 above the guide pipe 56, and an exhaust port 103 is installed at the top end of the chimney 57; the first draught fan 86 and the second draught fan 104 are operated, so that the flue gas flows along the direction of the U-shaped pipe 54, the flue gas treatment tower 55, the duct 56 and the chimney 57.

A tapered frame 87 is installed inside the flue gas treatment tower 55 above the guide pipe 56, a collection bin 88 is installed outside the flue gas treatment tower 55 outside the tapered frame 87, a tapered opening 89 is formed in the top end of the collection bin 88, a liquid storage tank 91 is arranged inside the collection bin 88, the bottom end of the tapered opening 89 is communicated with the liquid storage tank 91 through a liquid inlet tank 90, an inner water storage tank 92 is formed inside the tapered frame 87, the inner water storage tank 92 and the liquid storage tank 91 are arranged through a communication pipe 95, an outer overflow tank 93 is formed in the inner wall of the liquid storage tank 91, an inner overflow tank 94 is formed in the top end of the water storage tank 92, and the outer overflow tank 93 and the inner overflow tank 94 are arranged at equal height; dust and other harmful substances in the flue gas are treated by water overflowing from the inside of the outer overflow groove 93 and the inner overflow groove 94, thereby forming a water film;

a funnel-shaped collecting frame 96 is installed inside the flue gas treatment tower 55 below the guide pipe 56, a mounting hole 97 is formed in the funnel-shaped collecting frame 96, a sewage discharge hole 98 is formed in the position, corresponding to the mounting hole 97, of the bottom end of the flue gas treatment tower 55, a closed pipe 99 is in threaded connection with the insides of the sewage discharge hole 98 and the mounting hole 97, and a filter screen 100 is installed on the closed pipe 99 between the sewage discharge hole 98 and the mounting hole 97; the water is filtered by the filter screen 100, so that the water can be reused, and the filtered water in the flue gas treatment tower 55 enters the liquid storage tank 91 again under the action of the water pump to be utilized;

the top end of one side of the duct 56 close to the flue gas treatment tower 55 is provided with an outward protruding baffle 101, the bottom end of one side of the duct 56 close to the chimney 57 is provided with a waterproof plate 102, and the baffle 101 and the waterproof plate 102 are arranged to prevent water from entering the chimney 57 through the duct 56.

Example 1, a power generation system of a fixed bed continuous updraft getter furnace for waste treatment, when in use, waste to be treated is fed into a feed bin 10, a pulverizing motor 34 is operated to pulverize the waste, ironwork in the waste is collected by a magnetic rod 42, an electric push rod 38 is reciprocated to feed the waste into a feed pipe 5, the material is fed into a furnace body 1 along the feed pipe 5, the waste fed into the furnace body 1 forms a combustion layer at the bottom end of the furnace body 1, an oxidation layer, a thermal bonding layer and a drying layer are sequentially formed above the combustion layer, and water vapor, volatile gas and combustible gas mixture generated by cracking of garbage in the pyrolysis layer, which are generated when the waste is dried, are collectively referred to as flue gas and air in a dispersion pipe 51 to be fed into a secondary combustion chamber to be combusted, the solid residue after pyrolysis slowly burns in the burning layer, the unburned combustible substance forms an ember burning layer and a bottom burning layer below the burning layer to burn, because the burning time is long, all the combustible substance is burned out finally, the combustible gas such as H2, CO, CH4 generated during burning rises to enter a secondary burning chamber to burn, the non-combustible substance such as burnt ash and the like can not generate melting and slagging because the non-combustible substance is always in the low-temperature burning atmosphere, can be conveniently discharged into an ash hopper through a grate, then carries out subsequent treatment by ash, because the flue gas and the solid residue are separately burned, the heat energy generated by the combustion of the flue gas in the secondary burning chamber is utilized by heat-using equipment such as a boiler and the like, the influence on the furnace temperature and the like of a garbage burning furnace is small, the burning of the solid residue adopts low pressure, and the air burning control technology of low air volume maintains the whole temperature operation of the garbage pyrolysis burning integrated furnace, the outer pipe 32 is rotated by controlling the operation of the grate power motor 31, so that the height of the screw 27 is adjusted, the gaps between the bottom ring 21 and the connecting ring 23 and between the top ring 22 and the connecting ring 23 are adjusted, so that large residues can be discharged conveniently, the residues reach the position of the slag discharging pipe 17 along with the inclined channel 16, then the slag discharging motor 18 drives the spiral conveying frame 20 to rotate, and the residues are discharged from the position of the slag discharging hole 19 under the action of the spiral conveying frame 20;

under the action of a first water pump 71, water in the water tank 62 enters a condensate preheating pipe 72 and a condensate discharging pipe 73, then sequentially enters a low-pressure steam packet 74, an intermediate-pressure steam packet 78 and a high-pressure steam packet 83, then passes through a low-pressure evaporator 75, a low-pressure superheater 76, an intermediate-pressure evaporator 79, an intermediate-pressure superheater 80, a high-pressure evaporator 84 and a high-pressure superheater 85, so that low-pressure, intermediate-pressure and high-pressure steam can be generated, and then enters the interior of the steam power generation structure 53 along a pipeline, so that the low-pressure steam turbine 58 and the high-intermediate-pressure steam turbine 59 are driven to rotate, and power generation operation is performed;

the exhaust gas discharged from the exhaust port 3 flows along the direction of the U-shaped pipe 54, the flue gas treatment tower 55, the duct 56 and the chimney 57 by the first and second flow guiding fans 86 and 104, when the flue gas passes through the flue gas treatment tower 55, the inside of the liquid storage tank 91 is filled with water by the external water pump, and then overflows from the positions of the external overflow groove 93 and the internal overflow groove 94, thereby forming a water film, so that harmful substances in the passing flue gas are adsorbed, and the water is collected in the funnel-shaped collecting rack 96, and then flows back to the inside of the liquid storage tank 91 along the pipeline by the external water pump through the filtering of the filtering screen 100, thereby being used again.

While the present invention has been particularly shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A fixed bed continuous type upper air suction furnace power generation system for waste treatment comprises a furnace body (1) and a steam generation structure (52), and is characterized in that: a dispersion frame (2) is arranged in the furnace body (1), an exhaust port (3) is arranged at the top end of the furnace body (1), a storage bin (4) is arranged at the bottom end of the furnace body (1), a feeding pipe (5) is arranged on the side surface of the furnace body (1), a grate frame (6) is arranged at the position of the bottom end of the furnace body (1) corresponding to the storage bin (4), an air inlet channel (7) is arranged in the storage bin (4) below the grate frame (6), the bottom end in the air inlet channel (7) is provided with a grate frame adjusting power (8), a slag discharging structure (9) is arranged on the side surface of the bottom end of the storage bin (4), a feeding bin (10) is arranged at the top end of the feeding pipe (5), a pushing structure (11) is arranged in the feeding bin (10) at a position corresponding to the feeding pipe (5), a combustion-supporting gas air inlet structure (12) and an excessive secondary wind power structure (13) are arranged on the side surface of the furnace body (1);

the steam generating structure (52) is connected with a steam generating structure (53), the steam generating structure (53) comprises a low-pressure turbine (58), a high-medium pressure turbine (59) and an engine (60), the low pressure turbine (58), the high and medium pressure turbine (59) and the engine (60) are connected through a transmission shaft (61), a water tank (62) is arranged at the bottom end of the low-pressure turbine (58), a condenser (63) is arranged in the water tank (62), a water outlet pipe (64) is arranged on the side surface of the water tank (62), a gas guide pipe (65) is connected between the low pressure turbine (58) and the high and medium pressure turbine (59), the top end of the air duct (65) is communicated with a low-pressure steam inlet pipe (66), a high-medium pressure return pipe (67), a high-pressure steam inlet pipe (68) and a medium-pressure steam inlet pipe (69) are sequentially arranged at the top end of the high-medium pressure turbine (59);

the steam generating structure (52) comprises a first water pump (71), the water outlet pipe (64) is connected with the first water pump (71) through a condensed water inlet pipe (70), the water outlet end of the first water pump (71) is connected with a condensed water preheating pipe (72), the condensed water preheating pipe (72) is arranged above the interior of the furnace body (1), and the condensed water preheating pipe (72) is connected with a condensed water outlet pipe (73);

the steam boiler is characterized in that a low-pressure steam pocket (74), a water pump II (77) and a water pump III (82) are sequentially connected onto the condensed water discharge pipe (73), a low-pressure evaporator (75) and a low-pressure superheater (76) are connected onto the low-pressure steam pocket (74), the low-pressure evaporator (75) and the low-pressure superheater (76) are both arranged below a condensed water preheating pipe (72) inside the boiler body (1), the low-pressure superheater (76) is connected with a low-pressure steam inlet pipe (66) through a pipeline, the water pump II (77) is connected with a medium-pressure steam pocket (78) through a pipeline, a medium-pressure evaporator (79) and a medium-pressure superheater (80) are connected onto the medium-pressure steam pocket (78), a return conduit (81) is further connected onto the medium-pressure superheater (80), and the medium-pressure evaporator (79), the medium-pressure superheater (80) and the return conduit (81) are all arranged below the low-pressure superheater (76) inside the boiler body (1), the backflow guide pipe (81) is connected with a high-medium pressure backflow pipe (67) through a pipeline, the medium pressure superheater (80) is connected with a medium pressure steam inlet pipe (69) through a pipeline, the water pump III (82) is connected with a high pressure steam packet (83), the high pressure steam packet (83) is connected with a high pressure evaporator (84) and a high pressure superheater (85), the high pressure evaporator (84) and the high pressure superheater (85) are arranged below the dispersion frame (2), and the high pressure superheater (85) is connected with a high pressure steam inlet pipe (68) through a pipeline;

the top end of the exhaust port (3) is connected with a flue gas treatment tower (55) through a U-shaped pipe (54), and the flue gas treatment tower (55) is connected with a chimney (57) through a guide pipe (56).

2. The power generation system of the fixed bed continuous updraft gasifier for waste treatment according to claim 1, wherein: the dispersing frame (2) comprises a fixing plate (14) arranged inside the furnace body (1), a dispersing plate (15) is arranged on the top end of the fixing plate (14), and the dispersing plate (15) is of a net-shaped structure.

3. The power generation system of the fixed bed continuous updraft gasifier for waste treatment according to claim 1, wherein: store the inside in storehouse (4) and seted up slope passageway (16), the lowest position department of slope passageway (16) installs pipe (17) of slagging tap, arrange sediment structure (9) including setting up motor (18) of slagging tap on pipe (17) of slagging tap, the output shaft of motor (18) of slagging tap runs through and extends to the inside of pipe (17) of slagging tap and is connected with spiral delivery frame (20), arrange slag notch (19) are installed to the bottom of pipe (17) of slagging tap.

4. The power generation system of the fixed bed continuous updraft gasifier for waste treatment according to claim 1, wherein: comb frame (6) are including setting up end ring (21) in furnace body (1) bottom, end ring (21) are connected with apical ring (22) through go-between (23), connect kelly (24) are all installed to the bottom of apical ring (22) and go-between (23), through-hole (25) have been seted up to the position department that corresponds connection kelly (24) on end ring (21) and go-between (23), the bottom setting of connecting kelly (24) is in the below of through-hole (25).

5. The power generation system of the fixed bed continuous updraft gasifier for waste treatment according to claim 1, wherein: comb frame regulation power (8) are including setting up installation cavity (30) storing storehouse (4) bottom, comb frame motor power (31) are installed to the bottom of installation cavity (30), outer tube (32) are installed on the output shaft top of comb frame motor power (31), the inside threaded connection of outer tube (32) has screw rod (27), the top of screw rod (27) is passed through connecting rod (26) and is connected with the bottom of apical ring (22), the internally mounted of inlet channel (7) has inclined hole (28), the installation that corresponds inclined hole (28) on connecting rod (26) blocks platform (29).

6. The power generation system of the fixed bed continuous updraft gasifier for waste treatment according to claim 1, wherein: feed inlet (33) have been seted up on the top in feeding storehouse (10), the side-mounting in feeding storehouse (10) has crushing motor (34), the output shaft of crushing motor (34) runs through and extends to the inside in feeding storehouse (10) and is connected with crushing roller set (35), the other end of crushing roller set (35) passes through gear connection structure (36) and connects.

7. The power generation system of the fixed bed continuous updraft gasifier for waste treatment according to claim 1, wherein: propelling movement structure (11) is including installing set square (37) in feeding storehouse (10) inside, set square (37) set up the below at crushing roller set (35), be connected with pusher head (39) through electric putter (38) on the face that set square (37) correspond inlet pipe (5), pusher head (39) set up with the inner wall tangency of inlet pipe (5).

8. The power generation system of a fixed bed continuous updraft gasifier for waste treatment according to claim 6, wherein: mounting hole (40) have been seted up to feeding storehouse (10) side of crushing roller group (35) below, the inside threaded connection of mounting hole (40) has erection column (41), install bar magnet (42) on the face that inlet pipe (5) are corresponded in erection column (41), toper spacer screen (43) are installed to the bottom in feeding storehouse (10), install drain pipe (44) on feeding storehouse (10) of toper spacer screen (43) below, evaporation tank (45) have been seted up on the top of storing storehouse (4), the bottom setting of drain pipe (44) is in the inside of evaporation tank (45).

9. The power generation system of the fixed bed continuous updraft gasifier for waste treatment according to claim 1, wherein: combustion-supporting gas air inlet structure (12) is including fan one (46), fan one (46) are connected with connecting pipe one (48) through preheating pipe one (47), preheating pipe one (47) set up inside furnace body (1) of dispersion frame (2) top, the gas outlet setting of connecting pipe one (48) is in inlet channel (7), excessive secondary wind power structure (13) are including fan two (49), fan two (49) are connected with dispersion pipe (51) through preheating pipe two (50), preheating pipe two (50) also set up inside furnace body (1) of dispersion frame (2) top, the gas outlet setting of dispersion pipe (51) is in furnace body (1) between comb frame (6) and dispersion frame (2).

10. The power generation system of the fixed bed continuous updraft gasifier for waste treatment according to claim 1, wherein: a first drainage fan (86) is installed inside the U-shaped pipe (54), a second drainage fan (104) is installed inside a chimney (57) above the guide pipe (56), and an exhaust port (103) is installed at the top end of the chimney (57);

a conical frame (87) is arranged in the flue gas treatment tower (55) above the guide pipe (56), a collecting bin (88) is arranged outside the smoke processing tower (55) outside the conical frame (87), a conical opening (89) is arranged at the top end of the collection bin (88), a liquid storage box (91) is arranged inside the collection bin (88), the bottom end of the conical opening (89) is communicated with the liquid storage tank (91) through a liquid inlet groove (90), an inner water storage tank (92) is arranged inside the conical frame (87), the inner water storage tank (92) and the liquid storage tank (91) are arranged through a communication pipe (95), an outer overflow groove (93) is arranged on the inner wall of the liquid storage tank (91), an inner overflow groove (94) is arranged at the top end of the water storage groove (92), the outer overflow groove (93) and the inner overflow groove (94) are arranged in equal height;

a funnel-shaped collecting frame (96) is arranged in the flue gas treatment tower (55) below the guide pipe (56), a mounting hole (97) is formed in the funnel-shaped collecting frame (96), a blow-off hole (98) is formed in the position, corresponding to the mounting hole (97), of the bottom end of the flue gas treatment tower (55), a closed pipe (99) is connected with the blow-off hole (98) and the mounting hole (97) through internal threads, and a filter screen (100) is arranged on the closed pipe (99) between the blow-off hole (98) and the mounting hole (97);

the top end of one side, close to the flue gas treatment tower (55), of the guide pipe (56) is provided with an outward protruding baffle (101), and the bottom end of one side, close to the chimney (57), of the guide pipe (56) is provided with a waterproof plate (102).

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