CN110925750B

CN110925750B - Multistage cold sediment system of boiler fluidized bed

Info

Publication number: CN110925750B
Application number: CN201911411124.8A
Authority: CN
Inventors: 李永成; 李新发
Original assignee: Jinan Huangtai Coal Gas Stove Co ltd
Current assignee: JINAN HUANGTAI COAL GAS STOVE Co.,Ltd.
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2021-05-11
Anticipated expiration: 2039-12-31
Also published as: CN110925750A

Abstract

The invention relates to a multistage slag cooling system of a boiler fluidized bed, which comprises a base, a collecting frame, a working frame, a cooling unit, an air pump and a heat dissipation unit, wherein the inside of the base is connected with the collecting frame in a sliding fit mode, the working frame is installed at the upper end of the base, the cooling unit is installed at the upper end of the inside of the working frame, the heat dissipation unit is arranged at the lower end of the inside of the working frame, the heat dissipation units are arranged in a left-right staggered mode, and the air pump is installed on the left side wall of the working frame. The invention can solve the problems that the slag is blocked and difficult to discharge slag possibly caused by the blocking of the slag when the slag is cooled in the slag cooler, the blockage position is difficult to clean in time because the whole slag cooling process is in a sealed environment and is in a working state, the amount of the once slag of the conventional slag cooler is large, the cooling effect of the inner layer and the outer layer of a slag pile is unequal in the slag cooling process, the slag cooling treatment needs to be carried out by consuming longer working time, and the like.

Description

Multistage cold sediment system of boiler fluidized bed

Technical Field

The invention relates to the technical field of boiler slag treatment, in particular to a multistage slag cooling system of a boiler fluidized bed.

Background

The fluidized bed means that a large amount of solid particles are suspended in moving fluid, so that the particles have certain apparent characteristics of the fluid, the temperature of slag generated by a fluidized bed boiler is high, if the slag is directly discharged or enters a slag removal system, the life safety is endangered, and the safe operation of the slag removal system and equipment is not facilitated, so that the slag needs to be cooled and recovered, the slag is cooled in the conventional slag cooling mode by putting the slag into the conventional slag cooler for cooling, and at the moment, the conventional slag cooler can possibly encounter some problems during working:

1. when the slag is cooled in the slag cooler, the slag is blocked possibly to cause blockage and difficult slag discharge, and the whole slag cooling process is in a sealed environment and is in a working state, so that the blockage position is difficult to clean in time;

2. the existing slag cooler has more primary slag cooling amount, the cooling effect of the inner layer and the outer layer of a slag pile is unequal in the slag cooling process, the slag cooler needs to be cooled by consuming longer working time, and the efficiency is low.

Disclosure of Invention

Technical scheme (I)

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a multistage cold sediment system of boiler fluidized bed, includes the base, collects frame, work frame, cooling unit, air pump and heat dissipation unit, the inside of base be connected with the collection frame through sliding fit's mode, the work frame is installed to the upper end of base, the cooling unit is installed to the inside upper end of work frame, the inside lower extreme of work frame is equipped with the heat dissipation unit, and staggered arrangement about the heat dissipation unit, the left side wall mounting of work frame has the air pump.

The cooling unit include the cooling frame, the cooling chamber, the rotating electrical machines and feed the frame, the inside upper end at the work frame is installed to the cooling frame, the inside of cooling frame even has the frame of feeding through the bearing, the lower extreme that feeds the frame and the output shaft of rotating electrical machines, the rotating electrical machines is installed on the outer wall of cooling frame, the cooling chamber has been seted up in the outer wall layer of cooling frame, concrete during operation, thereby pour into ice water and cool down to the cooling frame inner wall in the cooling chamber, it rotates to drive the frame of feeding through the rotating electrical machines, pour the slag into the cooling frame in, stir its bits of broken glass and carry right through the pivoted frame of feeding, the cooling unit carries out the first cooling to the slag, and stir the bits of broken glass to great slag, be convenient for better cooling.

The heat dissipation unit comprises a driving shaft, rotating frames, conveying frames, ventilating grooves, jacking mechanisms, reset springs, limiting plates, limiting frames and a linkage mechanism, the driving shaft is mounted in the working frame through a bearing, the rotating frames are mounted on the driving shaft, the conveying frames are arranged at the inner ends of the rotating frames, the ventilating grooves are uniformly formed in the conveying frames and play a ventilating role, each ventilating groove is internally provided with one jacking mechanism, the reset springs are connected between the rotating frames and the inner wall of the working frame, the bottom end faces of the rotating frames are tightly attached to the lower end faces of the limiting plates, the limiting plates are mounted in the working frame, the limiting frames are arranged below the rotating frames, the limiting plates and the limiting frames play a limiting role in limiting the moving range of the conveying frames, the linkage mechanism is arranged below the limiting frames, and during specific work, the primarily cooled slag falls into the uppermost conveying frame through the rotating feeding frames, the conveying frame receives angle adjustment under gravity back, and at this moment, the driving shaft rotates in step to drive the link gear work, hug closely downwards when spacing when conveying the frame, and at this moment, the downward landing of slag is to the conveying frame of below, and thereby spacing will jack-up mechanism jack-up will block the conveying frame of below ejecting and landing of the slag crushed aggregates of ventilation groove.

The linkage mechanism comprises a first spool, a second spool, a conveyor belt, a handle, a driven shaft and a heat dissipation plate, wherein the first spool is arranged at the front end of the driving shaft and connected with the second spool through the conveyor belt, the diameter of the first spool is larger than that of the second spool, so that the rotating speed of the second spool is improved, and the wind power for fanning out is increased And the air fanned out by the heat dissipation plate plays a role in cooling the falling slag.

Preferably, the base be transparent material and constitute, the inlet port has been seted up to the left end of work frame, and the inlet port is the structure of slope down gradually from a left side to the right side, is connected through the connecting pipe between air pump and the inlet port.

Preferably, the collection frame include sliding frame and interlayer board, the inside of sliding frame evenly is equipped with the interlayer board through sliding fit's mode, and the interlayer board arranges from top to bottom, evenly is equipped with the louvre on the interlayer board.

Preferably, the upper end of the left side of the cooling frame is provided with a feed inlet, the middle of the feed inlet is of a bending structure, the lower end of the right side of the cooling frame is provided with a discharge outlet, and the feeding frame is of a spiral structure.

Preferably, the inner end of the rotating frame is provided with a buffer slot, the buffer slot is internally connected with the outer end of the conveying frame in a sliding fit mode, and a buffer spring is connected between the conveying frame and the buffer slot.

Preferably, the jacking mechanism include jack-up board and drag reduction roller, the jack-up board passes through sliding fit's mode and is connected with ventilative groove, the inner groovy has evenly been seted up to the upper end of jack-up board, and be equipped with the drag reduction roller through the round pin axle in the inner groovy, ventilative groove is from last down width crescent.

Preferably, the limiting frame is arranged in the working frame, the air inlet grooves are uniformly formed in the limiting frame, the jacking columns are uniformly arranged on the limiting frame, and the limiting frame is of a structure which gradually inclines downwards from outside to inside.

(II) advantageous effects

1. According to the multistage slag cooling system for the boiler fluidized bed, the furnace slag is cooled in a mode of small single amount, long path and multiple air blowing, and residues clamped in the ventilation groove are jacked up and conveyed under the condition of good ventilation property in an extrusion mode, so that the blockage caused by clamping is reduced;

2. according to the multistage slag cooling system for the fluidized bed of the boiler, the temperature inside the cooling frame is reduced by the cooling unit through ice water, and the volume of the slag is reduced by crushing in the low-temperature conveying process, so that the cooling speed of the slag is accelerated, the falling frequency of the slag is controlled by the cooling unit, and the parts of the heat dissipation unit are prevented from being damaged and the cooling effect is reduced due to the falling of a large amount of slag;

3. according to the boiler fluidized bed multistage slag cooling system, the conveying frames are arranged in a Z shape under the influence of gravity, so that the falling path of slag is prolonged, and the cooling plate is driven to rotate by multiple functions of one machine, so that the falling slag is further cooled.

Drawings

The invention is further illustrated with reference to the following figures and examples.

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

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic perspective view of the conveying frame of the present invention;

FIG. 4 is a schematic perspective view of the spacing frame of the present invention;

FIG. 5 is an enlarged view of the invention in section X of FIG. 2;

fig. 6 is a Y-direction partial enlarged view of fig. 2 of the present invention.

Detailed Description

Embodiments of the present invention will be described below with reference to the drawings. In this process, the width of the lines or the size of the components in the drawings may be exaggerated for clarity and convenience of description.

The following terms are defined based on the functions of the present invention, and may be different depending on the intention of the user or the operator or the convention. Therefore, these terms are defined based on the entire contents of the present specification.

As shown in fig. 1 to 6, a multistage cold sediment system of boiler fluidized bed, including base 1, collection frame 2, work frame 3, cooling unit 4, air pump 5 and radiating unit 6, base 1's inside be connected with collection frame 2 through sliding fit's mode, work frame 3 is installed to base 1's upper end, cooling unit 4 is installed to work frame 3's inside upper end, work frame 3's inside lower extreme is equipped with radiating unit 6, and radiating unit 6 controls staggered arrangement, installs air pump 5 on the left side wall of work frame 3.

Cooling unit 4 include cooling frame 41, cooling chamber 42, rotating electrical machines 43 and feed frame 44, cooling frame 41 installs in the inside upper end of work frame 3, cooling frame 41's inside even has feed frame 44 through the bearing, feed frame 44's lower extreme and rotating electrical machines 43's output shaft, rotating electrical machines 43 installs on cooling frame 41's outer wall, cooling chamber 42 has been seted up in cooling frame 41's the outer wall layer, during specific work, pour into ice water and cool down cooling frame 41 inner wall thereby, drive feed frame 44 through rotating electrical machines 43 and rotate, pour the slag into cooling frame 41, smash it and carry right through pivoted feed frame 44, cooling unit 4 carries out the primary cooling to the slag, and smash great slag, be convenient for better cooling.

The heat dissipation unit 6 comprises a driving shaft 61, a rotating frame 62, a conveying frame 63, ventilating grooves 64, a jacking mechanism 65, a return spring 66, limit plates 67, limit frames 68 and a linkage mechanism 69, wherein the driving shaft 61 is installed in the working frame 3 through a bearing, the rotating frame 62 is installed on the driving shaft 61, the conveying frame 63 is arranged at the inner end of the rotating frame 62, the ventilating grooves 64 are uniformly arranged on the conveying frame 63, the ventilating grooves 64 play a ventilating role, the jacking mechanism 65 is arranged in each ventilating groove 64, the return spring 66 is connected between the rotating frame 62 and the inner wall of the working frame 3, the bottom end surface of the rotating frame 62 is tightly attached to the lower end surface of the limit plate 67, the limit plates 67 are installed in the working frame 3, the limit frames 68 are arranged below the rotating frame 62, the limit plates 67 and the limit frames 68 play a limiting role in limiting the moving range of the conveying frame 63, the linkage mechanism 69 is arranged below, during specific work, the slag that pivoted feeding frame 44 will tentatively cool down firstly falls into the transport frame 63 of the top in, transport frame 63 receives angle modulation down after the gravity, and at this moment, driving shaft 61 rotates in step to drive link gear 69 work, when transport frame 63 hugs closely downwards at spacing 68, at this moment, the downward landing of slag is to the transport frame 63 of below, thereby spacing 68 will jack-up mechanism 65 jack-up will block the slag crushed aggregates ejecting and the landing is to the transport frame 63 of below in ventilative groove 64.

The linkage mechanism 69 comprises a first spool 691, a second spool 692, a conveyor belt 693, a handle 694, a driven shaft 695 and a heat dissipation plate 696, wherein the first spool 691 is installed at the front end of the driving shaft 61, the first spool 691 is connected with the second spool 692 through the conveyor belt 693, the diameter of the first spool 691 is larger than that of the second spool 692, so that the rotating speed of the second spool 692 is improved, the wind power for fanning out is increased, the second spool 692 is installed at the front end of the driven shaft 695, the heat dissipation plate 696 is evenly installed on the driven shaft 695 along the circumferential direction of the driven shaft 695, the driven shaft 695 is installed in the working frame 3 through a bearing, the handle 694 is installed at the front end of the first spool 691, the handle 694 can manually shake to eject residues in the ventilation groove 64, when the conveying frame 63 works, the synchronously rotating driving shaft 61 drives the heat dissipation plate 696 to rotate through the conveyor belt 693, thus, the falling slag is cooled by the wind blown from the air pump 5 and the wind blown from the heat dissipation plate 696.

Base 1 constitute for transparent material, the collection volume condition in the collection frame 2 can be observed to the personnel, the inlet port has been seted up to the left end of work frame 3, and the inlet port turns right from a left side for the structure of downward sloping gradually, is connected through the connecting pipe between air pump 5 and the inlet port, the wind orbit that blows out through air pump 5 is right side below, can blow down the sediment ash that wafts when cooling, has reduced the volume of raising.

Collection frame 2 include sliding frame 21 and interlayer board 22, sliding frame 21's inside evenly is equipped with interlayer board 22 through sliding fit's mode, and interlayer board 22 arranges from top to bottom, evenly be equipped with the louvre on interlayer board 22, concrete during operation, the slag after the cooling at first falls into on sliding frame 21, personnel observe its internal environment through base 1, insert an interlayer board 22 after the certain degree is built-in to sliding frame 21 left, the slag of whereabouts falls into on this interlayer board 22, the thickness on slag layer is made thinner through the mode of interlayer, do benefit to the heat dissipation, the condition that the inlayer on slag layer is difficult to the cooling has been avoided.

The left side upper end of cooling frame 41 be equipped with the feed inlet, and the middle part of feed inlet is bending structure, has reduced the condition of raise dust, the right side lower extreme of cooling frame 41 is equipped with the discharge gate, feed frame 44 is helical structure, has made things convenient for and has carried the slag right.

The inner end of the rotating frame 62 is provided with a buffer groove, the buffer groove is connected with the outer end of the conveying frame 63 in a sliding fit mode, a buffer spring is connected between the conveying frame 63 and the buffer groove, the conveying frame 63 and the buffer groove are in buffer connection, and the buffer force of falling slag falling on one part of the conveying frame 63 is removed.

Jack-up mechanism 65 include jack-up board 651 and drag reduction roller 652, jack-up board 651 is connected with ventilative groove 64 through sliding fit's mode, the inner groovy has evenly been seted up to the upper end of jack-up board 651, and the inner groovy is equipped with drag reduction roller 652 through the round pin axle, ventilative groove 64 is from last down width crescent, during specific work, hug closely downwards when spacing 68 when carrying frame 63, and thereby spacing 68 with jack-up board 651 jack-up will block the conveying frame 63 of the ejection and landing below of the slag crushed aggregates of ventilative inslot 64, drag reduction roller 652 plays the effect of drag reduction.

Spacing 68 install in work frame 3, the air inlet duct has evenly been seted up to spacing 68, plays ventilative effect, evenly is equipped with the jack-up post on spacing 68, plays the effect of jack-up, and spacing 68 outside-in is the structure of slope down gradually, can hug closely completely when guaranteeing that the transport frame 63 of angle modulation downwards hugs closely with spacing 68.

When in work:

s1, pouring ice water into the cooling cavity 42 to cool the inner wall of the cooling frame 41, blowing gas into the working frame 3 through the air pump 5, driving the feeding frame 44 to rotate through the rotating motor 43, pouring slag into the cooling frame 41, crushing the slag through the rotating feeding frame 44 and conveying the crushed slag to the right;

s2, the slag falls into the uppermost conveying frame 63 at first, the conveying frame 63 is adjusted to the lower angle after being subjected to gravity, at the moment, the driving shaft 61 rotating synchronously drives the heat dissipation plate 696 to rotate through the conveying belt 693, and the falling slag is further cooled by the fan-out air;

s3, when the conveying frame 63 is adjusted downwards, the conveying frame is tightly attached to the limiting frame 68, and the limiting frame 68 jacks the jack-up plate 651 so that the crushed slag materials clamped in the ventilation groove 64 are ejected out and slide down to the conveying frame 63 below;

and S4, cooling the slag by the heat dissipation unit 6, and then dropping the slag onto the collection frame 2 for interlayer collection.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a multistage cold sediment system of boiler fluidized bed, includes base (1), collects frame (2), work frame (3), cooling unit (4), air pump (5) and radiating unit (6), its characterized in that: the inner part of the base (1) is connected with the collecting frame (2) in a sliding fit mode, the upper end of the base (1) is provided with the working frame (3), the upper end of the inner part of the working frame (3) is provided with the cooling unit (4), the lower end of the inner part of the working frame (3) is provided with the heat dissipation unit (6), the heat dissipation unit (6) is arranged in a left-right staggered mode, and the air pump (5) is arranged on the left side wall of the working frame (3);

the cooling unit (4) comprises a cooling frame (41), a cooling cavity (42), a rotating motor (43) and a feeding frame (44), the cooling frame (41) is installed at the upper end of the interior of the working frame (3), the interior of the cooling frame (41) is connected with the feeding frame (44) through a bearing, the lower end of the feeding frame (44) is connected with an output shaft of the rotating motor (43), the rotating motor (43) is installed on the outer wall of the cooling frame (41), and the cooling cavity (42) is formed in the outer wall layer of the cooling frame (41);

the heat dissipation unit (6) comprises a driving shaft (61), a rotating frame (62), a conveying frame (63), a ventilating groove (64), a jacking mechanism (65), a reset spring (66), a limiting plate (67), a limiting frame (68) and a linkage mechanism (69), wherein the driving shaft (61) is installed in the working frame (3) through a bearing, the rotating frame (62) is installed on the driving shaft (61), the conveying frame (63) is arranged at the inner end of the rotating frame (62), the ventilating groove (64) is uniformly arranged on the conveying frame (63), the jacking mechanism (65) is arranged in each ventilating groove (64), the reset spring (66) is connected between the rotating frame (62) and the inner wall of the working frame (3), the bottom end face of the rotating frame (62) is tightly attached to the lower end face of the limiting plate (67), the limiting plate (67) is installed in the working frame (3), the limiting frame (68) is arranged below the rotating frame (62), a linkage mechanism (69) is arranged below the limiting frame (68);

linkage mechanism (69) including I-shaped wheel (691), No. two I-shaped wheel (692), conveyer belt (693), handle (694), driven shaft (695) and heating panel (696), the front end at driving shaft (61) is installed to I-shaped wheel (691), I-shaped wheel (691) is connected with No. two I-shaped wheel (692) through conveyer belt (693), No. two I-shaped wheel (692) are installed at the front end of driven shaft (695), along its circumference evenly installed heating panel (696) on driven shaft (695), driven shaft (695) pass through the bearing and install in work frame (3), handle (694) are installed to the front end of I-shaped wheel (691).

2. The multi-stage slag cooling system of the fluidized bed of the boiler, according to claim 1, is characterized in that: the base (1) constitute for transparent material, the inlet port has been seted up to the left end of work frame (3), and the inlet port turns right from a left side and is the structure of downward sloping gradually, is connected through the connecting pipe between air pump (5) and the inlet port.

3. The multi-stage slag cooling system of the fluidized bed of the boiler, according to claim 1, is characterized in that: the collecting frame (2) comprises a sliding frame (21) and a partition plate (22), the partition plate (22) is evenly arranged inside the sliding frame (21) in a sliding fit mode, the partition plate (22) is arranged up and down, and heat dissipation holes are evenly formed in the partition plate (22).

4. The multi-stage slag cooling system of the fluidized bed of the boiler, according to claim 1, is characterized in that: the upper end of the left side of the cooling frame (41) is provided with a feeding hole, the middle of the feeding hole is of a bending structure, the lower end of the right side of the cooling frame (41) is provided with a discharging hole, and the feeding frame (44) is of a spiral structure.

5. The multi-stage slag cooling system of the fluidized bed of the boiler, according to claim 1, is characterized in that: the inner of rotatory frame (62) seted up the dashpot, be connected with the outer end of carrying frame (63) through sliding fit's mode in the dashpot, and it has buffer spring to carry between frame (63) and the dashpot.

6. The multi-stage slag cooling system of the fluidized bed of the boiler, according to claim 1, is characterized in that: the jacking mechanism (65) comprises a jacking plate (651) and a drag reduction roller (652), the jacking plate (651) is connected with the ventilating groove (64) in a sliding fit mode, an inner groove is uniformly formed in the upper end of the jacking plate (651), the drag reduction roller (652) is arranged in the inner groove through a pin shaft, and the width of the ventilating groove (64) is gradually increased from top to bottom.

7. The multi-stage slag cooling system of the fluidized bed of the boiler, according to claim 1, is characterized in that: the limiting frame (68) is arranged in the working frame (3), the air inlet grooves are uniformly formed in the limiting frame (68), the jacking columns are uniformly arranged on the limiting frame (68), and the limiting frame (68) is of a structure which is gradually inclined downwards from outside to inside.