CN213146545U - Wear-proof circulating fluidized bed boiler - Google Patents

Abstract

The utility model relates to a circulating fluidized bed boiler technical field, in particular to an anti-abrasion circulating fluidized bed boiler, which comprises a hearth, wherein an air inlet chamber is arranged at the bottom position of the hearth in a sealing way, an air inlet pipeline is communicated at one side position of the air inlet chamber in a sealing way, a fan is communicated at one side position of the air inlet pipeline far away from the air inlet chamber, a first hopper is arranged at one side position of the middle upper end of the hearth, and a second hopper is arranged at one side position of the first hopper adjacently, in the utility model, through the arranged sealing box, a sleeve, a tamping rod, a driving turntable and a lead screw, the driving turntable after being pulled can carry the lead screw to realize the rotary rotation until the sleeve after being subjected to the transmission acting force can carry the tamping rod to realize the downward linear motion, the boiler can realize the reciprocating tamping force to the blocking part by the tamping rod with a tip structure, the method realizes dredging treatment of the blocked pipeline and ensures smooth proceeding of the next-stage fuel combustion operation.

Description

Wear-proof circulating fluidized bed boiler

Technical Field

The utility model relates to a circulating fluidized bed boiler technical field specifically is a circulating fluidized bed boiler of abrasionproof.

Background

The circulating fluidized bed boiler adopts the clean coal combustion technology with the highest industrialization degree. The circulating fluidized bed boiler adopts fluidized combustion, the main structure comprises a combustion chamber (comprising a dense phase zone and a dilute phase zone) and a circulating furnace (comprising a high-temperature gas-solid separator and a material returning system), the circulating fluidized bed boiler well solves the basic problems of heat, mechanics, materials and the like and the engineering problems of expansion, abrasion, over-temperature and the like, and becomes an advanced technology for energy utilization of difficult-to-combust solid fuels (such as coal gangue, oil shale, municipal refuse, sludge and other wastes).

Circulating fluidized bed boiler on the market is when realizing the burning processing to the fuel, and the jam that piles up when the fuel whereabouts disturbs the normal combustion of whole boiler extremely easily to when the flue gas produced, the adhesion of the dust of doping in the flue gas, the difficult degree when the clean operation of inside degree of depth is carried out to the very easy increase later stage, the adhesion of dust can cause wearing and tearing to the pipeline simultaneously, consequently need spraying coating on the pipe wall to prevent wearing and tearing, prevents that the pipeline from corroding.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a circulating fluidized bed boiler of abrasionproof to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an anti-abrasion circulating fluidized bed boiler comprises a hearth, an air inlet chamber is arranged at the bottom position of the hearth in a sealing mode, an air inlet pipeline is communicated at one side position of the air inlet chamber in a sealing mode, a fan is communicated at one side position of the air inlet pipeline far away from the air inlet chamber, a first hopper is arranged at one side position of the middle upper end of the hearth, a second hopper is adjacently arranged at one side position of the first hopper, a material guide pipeline is communicated at the bottom positions of the second hopper and the first hopper, a lead screw is arranged inside the material guide pipeline, positioning supports are fixed at the two sides of the lead screw respectively, a sleeve is sleeved at the middle position of the lead screw, a tamping rod is fixedly connected to one side of the top of the sleeve through a screw, a sealing box is fixed at one side position of the first hopper, a driving turntable is arranged inside the sealing box, a separator is communicated at one side position of the middle upper end, and the top position of furnace rotates and is connected with the closing cap, the inner wall of furnace hugs closely there is the isolation layer, and the middle upper position in the inside of furnace is fixed with the locating frame, there is the returning charge ware bottom position of separator through the pipe connection, and the oblique below position switch-on in one side of returning charge ware has the returning charge pipeline, top one side position sealing joint of separator has the exhaust pipe, and one side position sealing joint of exhaust pipe has a water cooling mechanism, the inside middle-end position of locating frame installs outer frame body, and the inside middle-end position of outer frame body is fixed with the active carbon screen cloth, the both sides position of locating frame has all been seted up the open slot through integrated into one piece processing setting, and the inside of open slot has the fixture block, the positive middle-end position of fixture block is fixed with the traction lever, and one side position fixed.

Preferably, the interior of the hearth is communicated with the interior of the first hopper and the interior of the second hopper through the material guide pipelines respectively, and the material guide pipelines are distributed in an inclined structure.

Preferably, the interior of the material returning device is communicated with the interior of the hearth through a material returning pipeline, and the hearth and the isolation layer are processed and arranged through one-time spraying.

Preferably, one end of the screw rod is fixedly connected with the middle part of the driving turntable, the screw rod and the sleeve are connected to form a nested structure, the screw rod is fixedly connected with the material guide pipeline through the positioning support, and a tamping rod with a tip-shaped end is arranged on one side of the top of the screw rod.

Preferably, the positioning frame is connected with the clamping block in a clamping mode through an open slot, the positioning frame is connected with the outer frame body through a hollow groove body to form an embedded structure, one side of the outer frame body is fixedly connected with one side of the spring, and the spring forms an elastic structure through connection of the traction rod and the clamping block.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the utility model, through the sealing box, the sleeve, the tamping rod, the driving turntable and the lead screw, the driving turntable after being pulled can carry the lead screw to realize the rotation under the connection and the matching of the sealing box, and after the sleeve after receiving the transmission acting force can carry the tamping rod to realize the oblique and downward linear motion, the boiler realizes the dredging treatment of the blocked pipeline by means of the reciprocating tamping force of the tamping rod with the tip structure at the end part to the blocked part, thereby ensuring the smooth proceeding of the next-stage fuel combustion operation;

2. the utility model discloses in, through the furnace that sets up, the active carbon screen cloth, the separator, a spring, the traction lever, the fixture block, locating frame and outer frame body, combine the burning flue gas through furnace's top and the inside that the hybrid tube was sent into the separator, at a spring, the traction lever, the fixture block, locating frame and outer frame body can dismantle under the connection cooperation, the active carbon screen cloth will utilize the nature that self has, come to adsorb the processing to the part dust in the flue gas, avoid the direct adhesion of part smoke and dust in the connection position of furnace and closing cap, and adsorb the processing through carrying out the dust to producing in advance, the difficulty degree of the clean operation of the inside degree of depth that the later stage was gone on will reduce to some extent.

Drawings

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

fig. 2 is a schematic diagram of the structure of the activated carbon screen of the present invention.

In the figure: 1-hearth, 2-air inlet chamber, 3-air inlet pipeline, 4-fan, 5-first hopper, 6-second hopper, 7-guide pipeline, 8-screw rod, 9-positioning bracket, 10-sleeve, 11-tamping rod, 12-sealing box, 13-driving turntable, 14-sealing cover, 15-isolating layer, 16-positioning frame, 17-separator, 18-material returning device, 19-material returning pipeline, 20-smoke exhaust pipeline, 21-water cooling mechanism, 22-outer frame body, 23-active carbon screen, 24-open slot, 25-clamping block, 26-draw bar and 27-spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution:

an anti-abrasion circulating fluidized bed boiler comprises a hearth 1, an air inlet chamber 2 is hermetically arranged at the bottom of the hearth 1, an air inlet pipeline 3 is hermetically communicated at one side of the air inlet chamber 2, a fan 4 is communicated at one side of the air inlet pipeline 3 far away from the air inlet chamber 2, a first hopper 5 is arranged at one side of the middle upper end of the hearth 1, a second hopper 6 is adjacently arranged at one side of the first hopper 5, a material guide pipeline 7 is communicated at the bottom of the second hopper 6 and the bottom of the first hopper 5, a lead screw 8 is arranged inside the material guide pipeline 7, positioning brackets 9 are fixed at two sides of the lead screw 8, a sleeve 10 is sleeved at the middle position of the lead screw 8, a tamping rod 11 is fixedly connected at one side of the top of the sleeve 10 through a screw, a sealing box 12 is fixed at one side of the first hopper 5, a driving turntable 13 is arranged inside the sealing box 12, a separator 17 is hermetically communicated at one side of the middle upper end of the hearth 1, the top of the hearth 1 is rotatably connected with a sealing cover 14, the inner wall of the hearth 1 is tightly attached with an isolating layer 15, and a positioning frame 16 is fixed at the upper end position in the hearth 1, the bottom end position of the separator 17 is connected with a material returning device 18 through a pipeline, a return pipe 19 is communicated at the position obliquely below one side of the return device 18, a smoke exhaust pipe 20 is hermetically communicated at one side of the top of the separator 17, and one side of the smoke exhaust pipeline 20 is hermetically connected with a water cooling mechanism 21, the middle end of the inside of the positioning frame 16 is provided with an outer frame 22, an active carbon screen 23 is fixed at the middle end of the inner part of the outer frame body 22, open slots 24 are arranged at the two sides of the positioning frame 16 through integral forming processing, a clamping block 25 is arranged in the opening groove 24, a draw bar 26 is fixed at the middle end position of the front surface of the clamping block 25, and a spring 27 is fixedly connected at one side position of the clamping block 25.

The interior of the hearth 1 is communicated with the interior of the first hopper 5 and the second hopper 6 through the material guide pipeline 7 respectively, and the material guide pipeline 7 is distributed and arranged in an inclined structure, when the boiler works, fuel is brought into the interior of the hearth 1 through the interior of the first hopper 5 and the material guide pipeline 7, the falling of the fuel can be more centralized due to the arrangement of the material guide pipeline 7 in the inclined structure, when the started fan 4 is matched with the connection of the air inlet pipeline 3 and the air inlet chamber 2, combustion-supporting primary air is fed from the bottom of the hearth, and when secondary air is fed from a secondary air port, the fuel is combusted in a fluidized state in the boiler, combustion products, namely flue gas, carry a part of solid particles out of the hearth 1 and enter the separator 17, the separator 17 separates the solid particles, and the solid particles are fed back into the boiler through the material return device 18 and the material return pipeline 19 for combustion, the flue gas enters the smoke exhaust pipeline 20 to be taken out, and the circulation is repeated in such a way, so that a circulating fluidized bed boiler is formed; the inside of the material returning device 18 is communicated with the inside of the hearth 1 through a material returning pipeline 19, and the hearth 1 and the isolating layer 15 are arranged through one-time spraying processing, after partial solid particles in the flue gas are separated in the separator 17, the material returning device 18 returns the solid particles to the inside of the hearth 1 through the hollow inside of the material returning pipeline 19 under the arrangement of mutual communication, so that the whole material returning processing operation is completed, the working principle of the boiler material returning device related to the structure is the prior art, and when the isolating layer 15 which is made of nano ceramic coating is sprayed on the inner wall of the hearth 1, the isolating layer 15 is arranged, so that the whole boiler has the characteristics of high temperature, wear resistance, sulfur corrosion resistance, strong binding force with a base material and the like; one end of a screw rod 8 is fixedly connected with the middle part of a driving rotary disc 13, the screw rod 8 and a sleeve 10 are connected to form a nested structure, the screw rod 8 is fixedly connected with a material guide pipeline 7 through a positioning support 9, a tamping rod 11 with a tip-shaped structure at the end part is arranged at one side of the top part of the screw rod 8, when fuel is fed in, stacking and blocking phenomena occur, and normal operation of the whole boiler is interfered, under the connection and matching of a seal box 12, the boiler is matched with manual operation, so that the driving rotary disc 13 subjected to manual traction acting force can carry the screw rod 8 to realize convolution rotation, until after the convolution motion is converted into linear motion, the sleeve 10 subjected to transmission acting force can carry the tamping rod 11 to realize obliquely downward linear motion, and the boiler realizes dredging treatment of blocking pipelines by means of the tamping rod 11 with the tip-shaped structure at the end part to reciprocate, the structure ensures that the whole boiler has a pipeline dredging structure, and simultaneously, the smooth operation of the next-stage fuel combustion operation can be ensured by dredging the feeding pipeline in time; the positioning frame 16 is clamped and connected with the clamping block 25 through the open slot 24, the positioning frame 16 is connected with the outer frame body 22 through the hollow groove body to form an embedded structure, one side of the outer frame body 22 is fixedly connected with one side of the spring 27, the spring 27 forms an elastic structure through the connection of the traction rod 26 and the clamping block 25, the combustion flue gas is sent into the separator 17 through the upper part of the hearth 1 and a mixing pipeline in combination, under the connection and the matching of the positioning frame 16 and the outer frame body 22, the activated carbon screen 23 can utilize the property of the activated carbon screen 23 to adsorb partial dust in the flue gas, the situation that partial smoke dust is directly adhered to the connection part of the hearth 1 and the sealing cover 14 is avoided, and when the activated carbon screen 23 needs to be disassembled, under the connection and the matching of the positioning frame 16, after the traction rod 26 which is subjected to manual traction acting force overcomes the rebounding acting force of the spring 27, will make the separation of being connected between fixture block 25 and the locating frame 16 realization, the later stage only needs to utilize the mode of outside pull, can accomplish the dismantlement operation to active carbon screen 23, and this structure is when making whole boiler have a detachable adsorption structure, through carrying out the adsorption treatment to the dust that produces in advance, and the difficulty degree of the inside degree of depth clean operation that the later stage was gone on will reduce to some extent.

The working process is as follows: when the started fan 4 is matched with the connection of the air inlet pipeline 3 and the air inlet chamber 2, combustion-supporting primary air is fed from the bottom of the furnace bed, and secondary air is fed from a secondary air inlet, fuel is combusted in a fluidized state in the furnace, combustion products, namely flue gas, carry a part of solid particles out of the furnace 1 and enter the separator 17, the separator 17 separates the solid particles, the solid particles are returned to the furnace through the material returning device 18 and the material returning pipeline 19 and are combusted, the flue gas enters the smoke exhaust pipeline 20 and is taken out, the circulation is repeated, a circulating fluidized bed boiler is formed, when the fuel is fed, the accumulation and blockage phenomena occur, the normal operation of the whole boiler is disturbed, under the connection and the matching of the sealing box 12, the driving rotary disc 13 subjected to manual traction acting force can carry the screw rod 8 to realize the rotary rotation until the sleeve 10 subjected to the transmission acting force can carry the tamping rod 11 to realize the downward linear motion, this boiler is the reciprocal power of pounding to the jam at position with the help of the tamping bar 11 that the tip structure is the tip structure, realize the mediation processing to blockking up the pipeline, combine the burning flue gas to be sent into the inside of separator 17 through furnace 1's top and mixing duct, activated carbon screen 23 will utilize the nature that self has, come to adsorb the processing to the part dust in the flue gas, avoid the direct adhesion of part smoke and dust to the connection position of furnace 1 and closing cap 14, and when needs are dismantled activated carbon screen 23, receive draw bar 26 behind the artifical effort of pulling after carrying fixture block 25 and overcoming the resilience effort that spring 27 produced, will make the connection between fixture block 25 and the locating frame 16 realize the separation, the later stage only needs to utilize the mode of outside pull, can accomplish the dismantlement operation to activated carbon screen 23.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A circulating fluidized bed boiler that abrasionproof, includes furnace (1), its characterized in that: the hearth is characterized in that an air inlet chamber (2) is arranged at the bottom of the hearth (1) in a sealing mode, an air inlet pipeline (3) is communicated with one side of the air inlet chamber (2) in a sealing mode, a fan (4) is communicated with one side of the air inlet pipeline (3) far away from the air inlet chamber (2), a first hopper (5) is arranged at one side of the middle upper end of the hearth (1), a second hopper (6) is adjacently arranged at one side of the first hopper (5), a material guide pipeline (7) is communicated with the bottom of the second hopper (6) and the bottom of the first hopper (5), a lead screw (8) is arranged inside the material guide pipeline (7), positioning supports (9) are fixed at the two sides of the lead screw (8), a sleeve (10) is sleeved at the middle of the lead screw (8), a tamping rod (11) is fixedly connected to one side of the top of the sleeve (10) through a screw, one side position of first hopper (5) is fixed with seal box (12), and the inside of seal box (12) embeds there is drive carousel (13), the sealed switch-on of well upper end one side position of furnace (1) has separator (17), and the top position of furnace (1) rotates and is connected with closing cap (14), the inner wall of furnace (1) is hugged closely and is had isolation layer (15), and the middle and upper position in the inside of furnace (1) is fixed with locating frame (16), the bottom position of separator (17) has returning ware (18) through the pipe connection, and the oblique below position switch-on in one side of returning ware (18) has returning material pipeline (19), the sealed switch-on of top one side position of separator (17) has exhaust pipe (20), and one side position sealing connection of exhaust pipe (20) has water cooling mechanism (21), outer frame body (22) are installed to the inside middle end position of locating frame (16), and the inside middle-end position of outer frame body (22) is fixed with active carbon screen cloth (23), the both sides position of posting (16) all sets up through integrated into one piece processing and has seted up open slot (24), and the inside of open slot (24) settles and have fixture block (25), the positive middle-end position of fixture block (25) is fixed with traction lever (26), and one side position fixedly connected with spring (27) of fixture block (25).

2. The circulating fluidized bed boiler of claim 1, wherein: the inside of furnace (1) is put through each other through the inside of guide duct (7) and first hopper (5), second hopper (6) respectively, and sets up through disposable spraying processing between furnace (1) and isolation layer (15).

3. The circulating fluidized bed boiler of claim 1, wherein: the interior of the material returning device (18) is communicated with the interior of the hearth (1) through a material returning pipeline (19), and the hearth (1) is connected with the isolation layer (15) in a spraying manner.

4. The circulating fluidized bed boiler of claim 1, wherein: fixed connection between the middle part of the one end of lead screw (8) and drive carousel (13), and the connection of lead screw (8) and sleeve (10) constitutes nested structure, lead screw (8) are through locating support (9) and guide pipeline (7) fixed connection, and the top one side position of lead screw (8) is provided with stamp rod (11) that the tip is pointed structure.

5. The circulating fluidized bed boiler of claim 1, wherein: the positioning frame (16) is connected with the clamping block (25) in a clamping mode through the opening groove (24), the positioning frame (16) is connected with the outer frame body (22) through the hollow groove body to form an embedded structure, one side of the outer frame body (22) is fixedly connected with one side of the spring (27), and the spring (27) forms an elastic structure through connection of the traction rod (26) and the clamping block (25).

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