CN111252481B - Boiler external ash discharge conveying system - Google Patents

Boiler external ash discharge conveying system Download PDF

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Publication number
CN111252481B
CN111252481B CN201911311846.6A CN201911311846A CN111252481B CN 111252481 B CN111252481 B CN 111252481B CN 201911311846 A CN201911311846 A CN 201911311846A CN 111252481 B CN111252481 B CN 111252481B
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China
Prior art keywords
pipe
conveying
ash
chain
cooling
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CN201911311846.6A
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Chinese (zh)
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CN111252481A (en
Inventor
方旭东
聂晓蜜
于翔
胡林飞
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Zhejiang Jinxin Construction Engineering Co ltd
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Zhejiang Jinxin Construction Engineering Co ltd
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Publication of CN111252481A publication Critical patent/CN111252481A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00—Screw or rotary spiral conveyors
    • B65G33/08—Screw or rotary spiral conveyors for fluent solid materials
    • B65G33/14—Screw or rotary spiral conveyors for fluent solid materials comprising a screw or screws enclosed in a tubular housing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/54—Large containers characterised by means facilitating filling or emptying
    • B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
    • B65D88/68—Large containers characterised by means facilitating filling or emptying preventing bridge formation using rotating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/48—Arrangements of indicating or measuring devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/30—Belts or like endless load-carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
    • B65G23/22—Arrangements or mountings of driving motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00—Screw or rotary spiral conveyors
    • B65G33/24—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00—Screw or rotary spiral conveyors
    • B65G33/24—Details
    • B65G33/26—Screws
    • B65G33/265—Screws with a continuous helical surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00—Screw or rotary spiral conveyors
    • B65G33/24—Details
    • B65G33/32—Adaptations of bearings or couplings for supporting and connecting screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00—Screw or rotary spiral conveyors
    • B65G33/24—Details
    • B65G33/34—Applications of driving gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors 
    • B65G39/02—Adaptations of individual rollers and supports therefor
    • B65G39/09—Arrangements of bearing or sealing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
    • B65G65/32—Filling devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
    • B65G69/20—Auxiliary treatments, e.g. aerating, heating, humidifying, deaerating, cooling, de-watering or drying, during loading or unloading; Loading or unloading in a fluid medium other than air

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pusher Or Impeller Conveyors (AREA)
  • Gasification And Melting Of Waste (AREA)

Abstract

The invention discloses an external boiler ash discharge conveying system, and aims to overcome the defects that the conveying efficiency of boiler ash is low, the cooling effect is poor in the conveying process, and the scalding risk is easy to occur. The device comprises an ash collecting hopper, a screw conveying device, a pipe chain conveying device and an ash residue warehouse, wherein the screw conveying device comprises a conveying pipe, a conveying screw and a driving motor, the conveying screw is arranged in the conveying pipe, a cooling flow passage is arranged in the pipe wall of the conveying pipe, and the conveying screw is of a hollow structure; the pipe chain conveying device comprises a transmission chain, a feeding belt, a mounting seat, a blanking box, a cooling pipe and a rotating motor, wherein the transmission chain and the cooling pipe are both arranged between the mounting seat and the blanking box; one end of the conveying pipe is provided with a feeding hole, the other end of the conveying pipe is provided with a discharging hole, a blanking pipe is arranged between the feeding hole and the ash collecting hopper, the discharging hole is arranged downwards towards the feeding belt, and the blanking pipe is sleeved with a cooling sleeve.

Description

Boiler external ash discharge conveying system
Technical Field
The invention relates to the technical field of boilers, in particular to an external boiler ash discharge conveying system.
Background
The fly ash amount that incineration boiler produced is big, and ash conveying system is the indispensable partly of boiler system, directly gets in touch with safety in production and economic nature. The common ash conveying mode is pneumatic conveying, mainly air dynamic pressure and static pressure are applied, so that the fly ash can be conveyed in corresponding pipelines along with air flow, the pneumatic ash conveying speed is high, the abrasion is large, the solid-gas ratio is small, the conveying efficiency is relatively low, the energy consumption is high, more auxiliary equipment is needed, the ash conveying blockage and the bin pump are difficult to clean, the pressure loss is large in the whole conveying process, the cooling effect is poor in the fly ash conveying process, the temperature of the conveyed fly ash is high, and the risk of scalding is easy to occur.
Disclosure of Invention
The invention overcomes the defects of low boiler ash conveying efficiency, poor cooling effect in the conveying process and easy occurrence of scalding risks, and provides the boiler external ash conveying system which has high boiler ash conveying efficiency, good cooling effect in the conveying process, no scalding risk, full-closed conveying, no dust leakage, environmental protection and cleanness.
In order to solve the technical problems, the invention adopts the following technical scheme: a boiler external ash discharge conveying system comprises an ash collecting hopper, a screw conveying device, a pipe chain conveying device and an ash residue storage, wherein ash residues are conveyed into the ash residue storage from the ash collecting hopper after sequentially passing through the screw conveying device and the pipe chain conveying device; the pipe chain conveying device comprises a transmission chain, a feeding belt, a mounting seat, a blanking box, a cooling pipe and a rotating motor, wherein the transmission chain and the cooling pipe are both arranged between the mounting seat and the blanking box; conveyer pipe one end is equipped with the feed inlet, and the other end is equipped with the feed opening, installs blanking pipe between feed inlet and the ash collecting bucket, and the feed opening sets up towards the pay-off area downwards, and blanking pipe overcoat cooling jacket, cooling water carry out the heat exchange through cooling channel, conveying screw, cooling runner, cooling jacket in proper order through the delivery pump output.
Boiler ash is sent into ash collecting hopper, and under the action of gravity, the lime-ash falls to the conveyer pipe from the blanking pipe in, and the conveying screw in the conveyer pipe rotates and drives the lime-ash and carry to on falling into pipe chain conveyor's pay-off area from the feed opening, the pay-off area carries the lime-ash to the blanking box carries out the unloading, finally carries in the lime-ash storehouse. The cooling is carried out to the lime-ash among the whole transportation process, and cold water gets into from cooling channel and cools off the cooling tube to absorb the lime-ash heat, reduce the lime-ash temperature, later rivers get into conveying screw, directly cool off conveying screw, it is effectual to the cooling of lime-ash. Then the water flows into the cooling runner to cool the ash. When cooling down the lime-ash in the conveyer pipe, by the conveying screw of the inside of lime-ash and the outside conveyer pipe of lime-ash cool down simultaneously, improved the cooling effect greatly. And finally, water flow is introduced into the cooling sleeve to cool the ash falling from the blanking pipe. The ash slag is conveyed and cooled at the same time, the cooling path is long, the contact area is large, and the cooling effect is good. The boiler external ash discharge conveying system is high in conveying efficiency of boiler ash, good in cooling effect in the conveying process, capable of avoiding scalding risks, capable of realizing full-closed conveying, free of dust leakage and environment-friendly and clean.
Preferably, the heat exchanger and the closed water tank are communicated between the cooling sleeve and the delivery pump, and a water replenishing pipe is installed on the closed water tank. The structure arrangement realizes circulating cooling, saves more water and can collect and utilize waste heat in the heat exchanger conveniently.
Preferably, a feeding device is arranged between the pipe chain conveying device and the ash residue warehouse, the feeding device comprises a conveying belt, a support and a blanking groove, the conveying belt is arranged between the support and the blanking groove, a motor for driving the conveying belt to run is arranged in the blanking groove, an opening at the lower end of the blanking groove is arranged towards the ash residue warehouse, and an opening at the lower end of the blanking box is arranged towards the conveying belt. The feeding device conveys ash falling from the blanking box to the ash warehouse, and the conveying is convenient.
Preferably, a spray pipe is arranged between the mounting seat and the blanking box, the spray pipe is arranged below the cooling pipe, the feeding belt penetrates through the spray pipe, and a plurality of spray heads arranged towards the feeding belt are arranged in the spray pipe. The spray header carries out water smoke spray cooling to the pay-off area, and the cooling effect is good.
Preferably, the opening end of the conveying screw rod facing the driving motor is provided with a connecting seat, the end part of an output shaft of the driving motor is fixedly connected with the connecting seat, the end part of the conveying pipe is fixedly connected with a sealing sleeve, the conveying screw rod and the output shaft of the driving motor are both in sealing and rotating connection with the sealing sleeve, and the inner cavity of the sealing sleeve is communicated with the inner cavity of the conveying screw rod. The output shaft of the driving motor is conveniently and reliably connected with the conveying screw rod, the sealing performance is good, and the reliable conveying of cooling water is ensured.
Preferably, the rotating motor is installed in the blanking box, the driving chain wheel is installed in the blanking box, the driven chain wheel is installed on the installation seat, the sliding rail is arranged on the installation seat, the bottom plate is installed on the sliding rail in a sliding mode, the driven chain wheel is installed on the bottom plate, the screw rod is connected to the bottom plate, the locking nut is connected to the screw rod, and the locking nut is connected to the installation seat. The bottom plate can be adjusted in a moving way through adjusting the locking nut and the screw rod, so that the driven chain wheel can tension the transmission chain.
Preferably, a material passing mechanism is arranged between the blanking pipe and the ash collecting hopper, the material passing mechanism comprises a material passing chain, a driving wheel and a steering wheel, a guide seat is arranged at the position of a feed port on the conveying pipe, a material passing port is arranged at the upper end of the guide seat, a connecting port and an avoiding port are arranged at the upper end of the guide seat, the material passing port, the connecting port and the avoiding port are communicated, the lower end of the blanking pipe is connected with the connecting port and is connected with the feed port on the conveying pipe through two ports, an arc-shaped guide surface is arranged in the guide seat, the material passing chain penetrates through the ash collecting hopper and the blanking pipe, passes through the avoiding port after bypassing the guide surface, winds at least one circle on the driving wheel and then bypasses; a plurality of material poking rods are arranged on the material passing chain at intervals.
The feed mechanism during operation, the motor drives the drive wheel and rotates to realize the operation of feed chain, feed chain follow ash collecting bucket downstream, get into the blanking pipe, feed chain drives the lime-ash whereabouts at the blanking pipe downstream, is favorable to accelerating the whereabouts speed, prevents to appear blocking phenomenon. And the kick-out lever can stir up the lime-ash of big granule, further plays the effect of preventing blockking up. Therefore, the conveying efficiency can be improved by arranging the material conveying mechanism.
Preferably, the material passing mechanism further comprises an air cooling machine, and an air outlet of the air cooling machine faces the material passing chain at the position of the driving wheel. The air cooling machine is used for air cooling the material feeding chain, and the cooled material feeding chain enters the ash slag to cool the ash slag.
Preferably, the feeding chain comprises a plurality of chain heads connected end to end, each chain head comprises a ball head, a ball head seat, a connecting rod and a connecting sleeve, the connecting rods are sleeved in the connecting sleeves, the ball heads are arranged at the end parts of the connecting rods, the ball head seats are arranged at the end parts of the connecting sleeves, the ball heads are rotatably arranged on the ball head seats, a positioning spring is connected between the connecting rods and the connecting sleeves, the side walls of the connecting sleeves are provided with positioning tubes, ejection rods are arranged in the positioning tubes, one ends of the ejection rods are provided with striking heads, the other ends of the ejection rods are provided with jacks, ejection springs are sleeved on the ejection rods, one ends of the ejection springs are tightly connected at the open ends of the positioning tubes, the other ends of the ejection springs are tightly connected to the positions, close to the jacks, the striking heads abut against the openings of the positioning tubes.
The in-process of expert material chain at the operation, when the lime-ash blockking up the jamming phenomenon appears, the pulling force that the chain head that blocks up the position received can strengthen, the connecting rod further outwards stimulates from the adapter sleeve this moment, after pulling force reachs a certain degree, the bulge loop is to the ejector pad on, promote the ejector pad removal, thereby release the locating lever from the jack, under the effect that launches the spring, the ejection pole outwards launches out, the striking head strikes the lime-ash, be favorable to dredging the lime-ash that blocks up the position, make the lime-ash smoothly fall.
Preferably, a plurality of needle rollers are arranged on the guide surface. The resistance of the feed chain in the operation process is reduced due to the arrangement of the roller pins.
Compared with the prior art, the invention has the beneficial effects that: the boiler external ash discharge conveying system is high in conveying efficiency of boiler ash, good in cooling effect in the conveying process, capable of avoiding scalding risks, capable of realizing full-closed conveying, free of dust leakage and environment-friendly and clean.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a schematic structural view of embodiment 2 of the present invention;
FIG. 3 is a schematic view of the partial structure of FIG. 2 of the present invention;
FIG. 4 is an enlarged partial schematic view of FIG. 3 of the present invention;
in the figure: 1. ash collecting hopper, 2, screw conveying device, 3, pipe chain conveying device, 4, ash storehouse, 5, conveying pipe, 6, conveying screw, 7, driving motor, 8, cooling runner, 9, feeding belt, 10, mounting seat, 11, blanking box, 12, cooling pipe, 13, rotating motor, 14, cooling channel, 15, feed inlet, 16, blanking port, 17, blanking pipe, 18, cooling sleeve, 19, conveying pump, 20, maintenance cleaning port, 21, thermometer, 22, grain level meter, 23, heat exchanger, 24, closed water tank, 25, water replenishing pipe, 26, spray pipe, 27, spray head, 28, driving sprocket, 29, driven sprocket, 30, slide rail, 31, bottom plate, 32, screw, 33, connecting seat, 34, sealing sleeve, 35, conveying device, 36, conveying belt, 37, support, 38, blanking groove, 39, material passing mechanism, 40, material passing chain, 41, feeding chain, The device comprises a driving wheel 42, a steering wheel 43, a guide seat 44, a material passing port 45, a connecting port 46, an avoiding port 47, a guide surface 48, a flexible baffle plate 49, a material stirring rod 50, an air cooling machine 51, a chain head 52, a ball head 53, a ball head seat 54, a connecting rod 55, a connecting sleeve 56, a ball hole groove 57, a positioning spring 58, a positioning cover 59, a positioning pipe 60, an ejection rod 61, a collision head 62, an insertion hole 63, a needle rod 64, an ejection spring 65, a positioning rod 66, a pushing block 67, a convex ring 68 and a rolling needle.
Detailed Description
The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:
example 1: a boiler external ash discharge conveying system (see attached figure 1) comprises an ash collecting hopper 1, a screw conveying device 2, a pipe chain conveying device 3 and an ash storage 4, ash is conveyed into the ash storage from the ash collecting hopper after sequentially passing through the screw conveying device and the pipe chain conveying device, the screw conveying device comprises a conveying pipe 5, a conveying screw 6 and a driving motor 7, the conveying screw is installed in the conveying pipe, the driving motor is in transmission connection with the conveying screw, a cooling runner 8 is arranged in the pipe wall of the conveying pipe, and the conveying screw is of a hollow structure; the pipe chain conveying device comprises a transmission chain, a feeding belt 9, a mounting seat 10, a blanking box 11, a cooling pipe 12 and a rotating motor 13, wherein the transmission chain and the cooling pipe are both arranged between the mounting seat and the blanking box, the feeding belt is connected with the transmission chain, the feeding belt penetrates through the cooling pipe, and a cooling channel 14 is arranged in the pipe wall of the cooling pipe; one end of the conveying pipe is provided with a feeding hole 15, the other end of the conveying pipe is provided with a blanking hole 16, a blanking pipe 17 is arranged between the feeding hole and the ash collecting hopper, the blanking hole is arranged downwards towards the feeding belt, the blanking pipe is sleeved with a cooling sleeve 18, and cooling water is output through a conveying pump 19 and sequentially passes through a cooling channel, a conveying screw rod, a cooling flow channel and the cooling sleeve to carry out heat exchange.
The side wall of the dust collecting hopper is provided with an overhaul cleaning port 20, and the overhaul cleaning port is covered by a cover plate. A thermometer 21 and a particle level meter 22 are arranged in the dust collecting hopper. A heat exchanger 23 and a closed water tank 24 are communicated between the cooling sleeve and the delivery pump, and a water replenishing pipe 25 is arranged on the closed water tank. And a thermometer and a pressure gauge are arranged at the water outlet of the cooling sleeve. A spray pipe 26 is arranged between the mounting seat and the blanking box, the spray pipe is arranged below the cooling pipe, the feeding belt penetrates through the spray pipe, and a plurality of spray heads 27 arranged towards the feeding belt are arranged in the spray pipe. The rotary motor is installed in the blanking box, a driving chain wheel 28 is installed in the blanking box, a driven chain wheel 29 is installed on the installation seat, a sliding rail 30 is arranged on the installation seat, a bottom plate 31 is installed on the sliding rail in a sliding mode, the driven chain wheel is installed on the bottom plate, a screw rod 32 is connected on the bottom plate, a locking nut is connected on the screw rod, and the locking nut is connected on the installation seat. The opening end of the conveying screw rod facing the driving motor is provided with a connecting seat 33, the end part of an output shaft of the driving motor is tightly connected with the connecting seat, the end part of the conveying pipe is tightly connected with a sealing sleeve 34, the conveying screw rod and the output shaft of the driving motor are both in sealing and rotating connection with the sealing sleeve, and the inner cavity of the sealing sleeve is communicated with the inner cavity of the conveying screw rod.
A feeding device 35 is installed between the pipe chain conveying device and the ash residue warehouse, the feeding device comprises a conveying belt 36, a support 37 and a blanking groove 38, the conveying belt is installed between the support and the blanking groove, a motor for driving the conveying belt to run is installed in the blanking groove, the lower end opening of the blanking groove is arranged towards the ash residue warehouse, and the lower end opening of the blanking box is arranged towards the conveying belt.
Boiler ash is sent into ash collecting hopper, and under the action of gravity, the lime-ash falls to the conveyer pipe from the blanking pipe in, and the conveying screw in the conveyer pipe rotates and drives the lime-ash and carry to on falling into pipe chain conveyor's pay-off area from the feed opening, the pay-off area carries the lime-ash to the blanking box carries out the unloading, finally carries in the lime-ash storehouse. The cooling is carried out to the lime-ash among the whole transportation process, and cold water gets into from cooling channel and cools off the cooling tube to absorb the lime-ash heat, reduce the lime-ash temperature, later rivers get into conveying screw, directly cool off conveying screw, it is effectual to the cooling of lime-ash. Then the water flows into the cooling runner to cool the ash. When cooling down the lime-ash in the conveyer pipe, by the conveying screw of the inside of lime-ash and the outside conveyer pipe of lime-ash cool down simultaneously, improved the cooling effect greatly. And finally, water flow is introduced into the cooling sleeve to cool the ash falling from the blanking pipe. The ash slag is conveyed and cooled at the same time, the cooling path is long, the contact area is large, and the cooling effect is good. The boiler external ash discharge conveying system is high in conveying efficiency of boiler ash, good in cooling effect in the conveying process, capable of avoiding scalding risks, capable of realizing full-closed conveying, free of dust leakage and environment-friendly and clean.
Example 2: a boiler external ash discharge conveying system (see attached figures 2 to 4) is similar to the structure of embodiment 1, and mainly has the difference that a material passing mechanism 39 is arranged between a blanking pipe and an ash collecting hopper in the embodiment, the material passing mechanism comprises a material passing chain 40, a driving wheel 41 and a steering wheel 42, the steering wheel is arranged right above the ash collecting hopper, the driving wheel is arranged on the right side of the ash collecting hopper, a guide seat 43 is arranged at a feed inlet on the conveying pipe, a feed inlet 44 is arranged at the upper end of the guide seat, a connecting port 45 and an avoiding port 46 are arranged at the upper end of the guide seat, and the feed inlet, the lower end of the blanking pipe is connected with the connecting port and is connected with the feeding port on the conveying pipe through two ports, an arc-shaped guide surface 47 is arranged in the guide seat, the material chain penetrates through the ash collecting hopper and the blanking pipe, penetrates out of the avoiding port after bypassing the guide surface, and bypasses a steering wheel above the ash collecting hopper after being wound for at least one circle on the driving wheel; a flexible blocking piece 48 is arranged at the position of the avoiding opening and used for blocking ash and preventing the ash from being brought out of the position of the avoiding opening. A plurality of material poking rods 49 are arranged on the material passing chain at intervals. The material passing mechanism further comprises an air cooling machine 50, and an air outlet of the air cooling machine faces to the material passing chain at the position of the driving wheel. The material passing chain comprises a plurality of chain heads 51 which are connected end to end, each chain head comprises a ball head 52, a ball head seat 53, a connecting rod 54 and a connecting sleeve 55, a ball hole groove 56 is formed in each ball head seat, a poking rod is arranged on each connecting rod, each connecting rod is sleeved in each connecting sleeve, each ball head is arranged at the end of each connecting rod, each ball head seat is arranged at the end of each connecting sleeve, and each ball head can be rotatably arranged in the corresponding ball hole groove in each ball head seat, so that a universal joint structure is formed between each ball head. A positioning spring 57 is connected between the connecting rod and the connecting sleeve, a positioning cover 58 is arranged at the opening position of the connecting sleeve, and the positioning spring is connected between the positioning cover and the end part of the connecting rod. Be equipped with registration arm 59 on the adapter sleeve lateral wall, installation ejection pole 60 in the registration arm, ejection pole one end is equipped with the striking head 61, the other end is equipped with jack 62, the striking head is triangle-shaped point form structure, a plurality of needle bars 63 of installation on the striking head front end surface, ejection spring 64 is gone up to the suit ejection pole, ejection spring one end fastening connection is at the registration arm open end, other end fastening connection is close to the jack position on the ejection pole, the striking head butt is at registration arm open position, cartridge locating lever 65 in the jack, connect ejector pad 66 on the locating lever, the ejector pad butt is on the adapter sleeve inner wall, the connecting rod lower extreme is equipped with the bulge loop 67 that is used for promoting the ejector pad. The guide surface mounts a plurality of needles 68. The other structure is the same as embodiment 1.
The feed mechanism during operation, the motor drives the drive wheel and rotates to realize the operation of feed chain, feed chain follow ash collecting bucket downstream, get into the blanking pipe, feed chain drives the lime-ash whereabouts at the blanking pipe downstream, is favorable to accelerating the whereabouts speed, prevents to appear blocking phenomenon. And the kick-out lever can stir up the lime-ash of big granule, further plays the effect of preventing blockking up. Therefore, the conveying efficiency can be improved by arranging the material conveying mechanism. The in-process of expert material chain at the operation, when the lime-ash blockking up the jamming phenomenon appears, the pulling force that the chain head that blocks up the position received can strengthen, the connecting rod further outwards stimulates from the adapter sleeve this moment, after pulling force reachs a certain degree, the bulge loop is to the ejector pad on, promote the ejector pad removal, thereby release the locating lever from the jack, under the effect that launches the spring, the ejection pole outwards launches out, the striking head strikes the lime-ash, be favorable to dredging the lime-ash that blocks up the position, make the lime-ash smoothly fall.
The above-described embodiments are merely preferred embodiments of the present invention, which is not intended to be limiting in any way, and other variations and modifications are possible without departing from the scope of the invention as set forth in the appended claims.

Claims (9)

1. A boiler external ash discharge conveying system is characterized by comprising an ash collecting hopper, a screw conveying device, a pipe chain conveying device and an ash residue warehouse, wherein ash residues are conveyed into the ash residue warehouse from the ash collecting hopper after sequentially passing through the screw conveying device and the pipe chain conveying device; the pipe chain conveying device comprises a transmission chain, a feeding belt, a mounting seat, a blanking box, a cooling pipe and a rotating motor, wherein the transmission chain and the cooling pipe are both arranged between the mounting seat and the blanking box; a feeding hole is formed in one end of the conveying pipe, a discharging hole is formed in the other end of the conveying pipe, a blanking pipe is installed between the feeding hole and the ash collecting hopper, the blanking hole is arranged downwards towards the feeding belt, a cooling sleeve is sleeved outside the blanking pipe, and cooling water is output through a conveying pump and sequentially passes through a cooling channel, a conveying screw, a cooling flow channel and the cooling sleeve to perform heat exchange; a material passing mechanism is arranged between the ash collecting hopper and the blanking pipe, the material passing mechanism comprises a material passing chain, a driving wheel and a steering wheel, a guide seat is arranged at the position of a material inlet on the conveying pipe, the upper end of the guide seat is provided with a material passing port, the upper end of the guide seat is provided with a connecting port and an avoiding port, the material passing port, the connecting port and the avoiding port are communicated, the lower end of the blanking pipe is connected with the connecting port and is connected with the material inlet on the conveying pipe through two ports, an arc-shaped guide surface is arranged in the guide seat, the material passing chain penetrates through the ash collecting hopper and the blanking pipe, passes through the avoiding port after bypassing the guide surface, and bypasses the steering wheel above the ash collecting hopper after; a plurality of material poking rods are arranged on the material passing chain at intervals.
2. The system for conveying the discharged ash of the boiler as set forth in claim 1, wherein a heat exchanger and a closed water tank are connected between the cooling jacket and the conveying pump, and a water replenishing pipe is installed on the closed water tank.
3. The system as claimed in claim 1, wherein the feeding device is installed between the pipe chain conveyor and the ash storage, the feeding device comprises a conveyor belt, a support, and a discharging chute, the conveyor belt is installed between the support and the discharging chute, a motor for driving the conveyor belt to operate is installed in the discharging chute, the lower opening of the discharging chute is disposed toward the ash storage, and the lower opening of the discharging box is disposed toward the conveyor belt.
4. The system as claimed in claim 1, wherein a shower pipe is installed between the mounting base and the blanking box, the shower pipe is disposed under the cooling pipe, the feeding belt penetrates through the shower pipe, and a plurality of shower heads are installed in the shower pipe and face the feeding belt.
5. The system for conveying the discharged ash of the boiler as claimed in claim 1, wherein the conveying screw rod is provided with a connecting seat towards the opening end of the driving motor, the end part of the output shaft of the driving motor is tightly connected with the connecting seat, the end part of the conveying pipe is tightly connected with a sealing sleeve, the conveying screw rod and the output shaft of the driving motor are both in sealing and rotating connection with the sealing sleeve, and the inner cavity of the sealing sleeve is communicated with the inner cavity of the conveying screw rod.
6. The system according to any one of claims 1 to 5, wherein the rotary motor is installed in the blanking box, the driving sprocket is installed in the blanking box, the driven sprocket is installed on the installation seat, the installation seat is provided with a slide rail, the slide rail is provided with a bottom plate in a sliding manner, the driven sprocket is installed on the bottom plate, the bottom plate is connected with the screw rod, the screw rod is connected with the locking nut, and the locking nut is connected with the installation seat.
7. The system for conveying the discharged ash of the boiler as set forth in claim 1, wherein the material feeding mechanism further comprises an air cooling machine, and an air outlet of the air cooling machine faces the material feeding chain at the position of the driving wheel.
8. The system according to claim 1, wherein the feeding chain comprises a plurality of chain heads connected end to end, each chain head comprises a ball head, a ball head seat, a connecting rod and a connecting sleeve, the connecting rod is sleeved in the connecting sleeve, the ball head is arranged at the end of the connecting rod, the ball head seat is arranged at the end of the connecting sleeve, the ball head is rotatably arranged on the ball head seat, a positioning spring is connected between the connecting rod and the connecting sleeve, a positioning tube is arranged on the side wall of the connecting sleeve, an ejection rod is arranged in the positioning tube, a striking head is arranged at one end of the ejection rod, a jack is arranged at the other end of the ejection rod, the ejection spring is sleeved on the ejection rod, one end of the ejection spring is tightly connected with the opening end of the positioning tube, the other end of the ejection spring is tightly connected with the position, which is close to the jack, the striking, the lower end of the connecting rod is provided with a convex ring used for pushing the push block.
9. The system for transporting boiler external ash according to claim 1 wherein said guide surface is provided with a plurality of roller pins.
CN201911311846.6A 2019-12-18 2019-12-18 Boiler external ash discharge conveying system Active CN111252481B (en)

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US11565226B2 (en) * 2018-06-18 2023-01-31 Enermech Pty Ltd Conveyor system and method
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Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4266901A (en) * 1978-11-03 1981-05-12 Wellons, Inc. Storage bin having driven agitator
CN2141415Y (en) * 1992-11-16 1993-09-01 李令义 Screw conveyer
KR20130021525A (en) * 2011-08-23 2013-03-06 에이치투더블유티이 주식회사 Colledting apparatus for thermal decomposition apparatus of organic waste
DE202012104538U1 (en) * 2012-11-22 2014-04-29 Dieffenbacher GmbH Maschinen- und Anlagenbau Chute arrangement with a double cleaning device, in particular for a device for gluing
CN203682664U (en) * 2013-11-29 2014-07-02 浙江杭摩合成材料有限公司 Thermoplastic resin molding machine
CN204280555U (en) * 2014-11-26 2015-04-22 成都贝发信息技术有限公司 Be applicable to the closed medicinal powder conveying mechanism of speed production efficiency
CN104785078B (en) * 2015-03-18 2017-10-03 杭州科晟能源技术有限公司 Humidification activation circulating ash smoke eliminator and its purification technique after in-furnace calcium spraying stove
CN209038431U (en) * 2018-11-07 2019-06-28 广东天源环境科技有限公司 A kind of spiral material conveyer
CN109480177A (en) * 2018-11-07 2019-03-19 谢林峰 A kind of processing method and device of fresh-cut lettuce
CN109611865B (en) * 2018-12-17 2021-02-23 浙江正慧环境科技有限公司 Spiral feeding system in front of circulating fluidized bed garbage incinerator

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