CN212594495U - Energy-efficient flying dust collection device - Google Patents
Energy-efficient flying dust collection device Download PDFInfo
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- CN212594495U CN212594495U CN202020995126.8U CN202020995126U CN212594495U CN 212594495 U CN212594495 U CN 212594495U CN 202020995126 U CN202020995126 U CN 202020995126U CN 212594495 U CN212594495 U CN 212594495U
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- fly ash
- outlet
- transmission
- transmission gear
- cyclone separator
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- 239000000428 dust Substances 0.000 title abstract description 36
- 239000010881 fly ash Substances 0.000 claims abstract description 34
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 17
- 230000023556 desulfurization Effects 0.000 claims abstract description 17
- 230000001105 regulatory effect Effects 0.000 claims abstract description 12
- 230000001276 controlling effect Effects 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 61
- 230000007246 mechanism Effects 0.000 claims description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 19
- 239000003546 flue gas Substances 0.000 abstract description 19
- 239000007787 solid Substances 0.000 abstract description 7
- 239000008187 granular material Substances 0.000 abstract description 5
- 238000005453 pelletization Methods 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 3
- 230000003009 desulfurizing effect Effects 0.000 abstract description 3
- 239000002245 particle Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000004744 fabric Substances 0.000 description 6
- 239000002956 ash Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a high-efficiency energy-saving fly ash collecting device, which comprises a boiler, a semi-dry desulfurization tower, a fly ash collecting hopper and a cyclone separator; the cyclone separator is provided with an inlet, a first outlet and a second outlet, the inlet is communicated with the boiler, the first outlet is communicated with the semi-dry desulfurization tower, and the second outlet is communicated with the fly ash collecting hopper; the second outlet is provided with a pressure regulating component which is used for controlling the pressure of the output end of the second outlet; the utility model provides a smuggle away to dust pelletizing system equipment such as desulfurizing tower body, sack box, card easily to the high velocity of flow flying dust granule smuggleing secretly in the flue gas, long-time operation causes the equipment box attenuate easily, easily takes place equipment perforation, the accident of leaking out and a large amount of solid flying dust granule and cause single sack load bearing capacity to strengthen after getting into the sack system easily, dust pelletizing system operation differential pressure increases, equipment running resistance increases, lead to the sack damage to change the technical problem that the frequency increases.
Description
Technical Field
The utility model relates to a dust removal technical field especially relates to an energy-efficient flying dust collection device.
Background
The incineration treatment of the domestic garbage is a domestic garbage treatment mode commonly adopted by countries in the world at present, and has the technical characteristics of large treatment capacity, good volume reduction, thorough harmlessness and heat energy recovery. With the continuous improvement of the environmental protection requirement of China, the treatment mode of harmless, recycling and reduction of the household garbage is further popularized and becomes the mainstream of household garbage treatment in China at present.
The circulating fluidized bed combustion technology is a clean incineration technology with high efficiency and low pollution, and is mainly characterized in that: the boiler furnace contains a large amount of solid particle materials, the materials are carried to the upper part of the furnace by smoke in the combustion process, the materials are separated from the smoke through a separator arranged at the outlet of the furnace, and the materials return to the furnace through a material return valve. Meanwhile, the flue gas enters a tail vertical shaft flue through an outlet flue positioned at the top of the cyclone separator, the flue gas in the vertical shaft flue is washed downwards and releases heat to the four walls and a tail heating surface in the vertical shaft flue, the flue gas flows through an air preheater at the lower part of the vertical shaft flue, then leaves the boiler body and is communicated with a semi-dry desulfurization tower body of a dust removal system through a horizontal flue, the flue gas finally enters a bag-type dust remover for filtering and dust removal after passing through a desulfurization tower, and the purified flue gas enters a chimney through an induced draft fan and is exhausted to the atmosphere.
Patent document No. CN2014206248769 discloses a dust collecting device for flying dust of dust collecting equipment, including pneumatic conveying pump and flying dust storage tank, pneumatic conveying pump with dust collecting equipment's lower ash mouth intercommunication, the top of flying dust storage tank is equipped with into ash mouth, advance ash mouth pass through the pipeline with pneumatic conveying pump intercommunication, the bottom of flying dust storage tank is equipped with the ash outlet, the top of flying dust storage tank is connected with sack cleaner and explosion-proof breather valve, this utility model's flying dust collecting device for dust collecting equipment has compact structure, convenient operation and can effectively avoid advantages such as secondary pollution.
However, in the actual operation process, although most of the solid particles in the furnace are collected and returned to the furnace again when passing through the cyclone separator, the high-temperature flue gas entering the heating surface of the tail flue still carries a large amount of solid particles of fly ash to enter the bag-type dust collector, and the inventor finds the following problems:
1. high-flow-rate fly ash particles carried in flue gas easily scour dust removal system equipment such as a desulfurizing tower body, a cloth bag box body and a pattern plate, the equipment box body is easily thinned after long-time operation, and equipment perforation and air leakage accidents are easily caused;
2. after a large amount of solid fly ash particles enter the cloth bag system, the load bearing capacity of a single cloth bag is easily increased, the operating differential pressure of the dust removal system is increased, the operating resistance of equipment is increased, and the cloth bag damage replacement frequency is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at prior art's weak point, through setting up cyclone, catch the separation with the large granule flying dust behind the utilization high-speed flue gas stream entering cyclone, because the flue gas velocity of flow of this department is far above the flue gas velocity of flow of furnace export separator, consequently, its flying dust capture rate increases, thereby the high velocity of flow flying dust granule that smugglies secretly in having solved the flue gas is easy to the desulfurizing tower body, the sack box, dust pelletizing system equipment such as card produce and erode, long-time operation causes equipment box attenuate easily, it perforates easily to take place equipment, leak wind accident and a large amount of solid flying dust granule cause single sack load bearing capacity to strengthen after getting into the sack system easily, dust pelletizing system operation differential pressure increases, equipment running resistance increases, lead to the sack damage the technical problem who changes the frequency increase.
Aiming at the technical problems, the technical scheme is as follows: a high-efficiency energy-saving fly ash collecting device comprises a boiler, a semi-dry desulfurization tower, a fly ash collecting hopper and a cyclone separator arranged between the boiler and the semi-dry desulfurization tower;
an inlet, a first outlet and a second outlet are arranged on the cyclone separator, the inlet is communicated with the boiler, the first outlet is communicated with the semi-dry desulfurization tower, and the second outlet is communicated with the fly ash collecting hopper;
and a pressure regulating component is arranged on the second outlet and is used for controlling the pressure of the output end of the second outlet.
Preferably, a rotating screw is arranged in the cyclone separator, and the rotating screw is driven by a driving mechanism to rotate.
Preferably, the pressure regulating assembly comprises a transmission assembly driven by the driving mechanism to perform transmission and a pressure control assembly driven by the transmission assembly to reciprocate.
Preferably, the transmission assembly comprises:
the first transmission gear is coaxial and fixedly connected with the output end of the driving mechanism;
the second transmission gear is positioned on one side of the first transmission gear and is meshed with the first transmission gear; and
and the third transmission gear is coaxial and fixedly connected with the second transmission gear.
Preferably, the third transmission gear is arranged in a quarter-tooth structure.
Preferably, the pressure control assembly comprises two groups of moving parts which are symmetrically arranged on two sides of the cyclone separator.
Preferably, the moving member comprises a mounting plate fixedly mounted on the cyclone separator, a telescopic unit fixedly connected with the mounting plate and horizontally arranged, an arc-shaped plate fixedly connected with the other end of the telescopic unit, and a transmission rack, wherein one end of the transmission rack is fixedly connected with the arc-shaped plate and meshed with the third transmission gear.
Preferably, the teeth of the transmission racks of the two groups of moving parts are arranged oppositely.
Preferably, the telescopic unit comprises a telescopic rod and a spring sleeved outside the telescopic rod.
The utility model has the advantages that:
(1) the cyclone separator is arranged in the utility model, the large-particle fly ash is captured and separated after the high-speed flue gas flow enters the cyclone separator, and the fly ash capture rate is increased because the flue gas flow velocity at the position is far higher than that of the furnace outlet separator;
(2) the utility model discloses in drive through setting up actuating mechanism drive transmission assembly to drive two sets of moving member reciprocating motion through transmission assembly, and then the pressure variation of control second export is poor, utilizes the pressure difference and changes the velocity of flow of export, thereby utilizes the velocity of flow change and undulates the material of second export, avoids appearing blocking phenomenon, guarantees that the velocity of flow is unblocked.
In conclusion, the device has the advantages of simple structure and automatic collection, and is particularly suitable for the technical field of dust removal.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an energy-efficient fly ash collection device.
FIG. 2 is a schematic diagram of the cyclone separator.
Fig. 3 is a schematic structural diagram of the voltage regulating assembly.
Fig. 4 is a first transmission diagram of the pressure regulating assembly.
Fig. 5 is a transmission schematic diagram of the pressure regulating assembly.
Fig. 6 is a schematic diagram of the transmission operation of the telescopic unit.
Detailed Description
The technical solution in the embodiment of the present invention is clearly and completely described below with reference to the accompanying drawings.
Example one
As shown in fig. 1, an energy-efficient fly ash collecting device comprises a boiler 1, a semi-dry desulfurization tower 2, a fly ash collecting hopper 3, and a cyclone separator 4 arranged between the boiler 1 and the semi-dry desulfurization tower 2;
the cyclone separator 4 is provided with an inlet, a first outlet 42 and a second outlet 43, the inlet is communicated with the boiler 1, the first outlet 42 is communicated with the semi-dry desulfurization tower 2, and the second outlet 43 is communicated with the fly ash collecting hopper 3;
and a pressure regulating assembly 5 is arranged on the second outlet 43, and the pressure regulating assembly 5 is used for controlling the pressure at the output end of the second outlet 43.
In the embodiment, the cyclone separator 4 is arranged, and the large-particle fly ash is captured and separated after the high-speed flue gas flow enters the cyclone separator 4, and the fly ash capture rate is increased because the flue gas flow speed at the position is far higher than that of the furnace outlet separator.
In addition, the fly ash collected by the cyclone separator 4 enters the fly ash collecting hopper 3 to be collected and then enters the umbrella-type pneumatic conveying device, and is conveyed to the ash warehouse by the warehouse pump, so that uniform collection and storage are realized.
The improved device can reduce the concentration of solid fly ash entering the semi-dry desulfurization tower 2 and the dust removal system from the outlet of the boiler 1, solves the scouring wear of the semi-dry desulfurization tower 2 and the dust removal system equipment and the load bearing capacity of a single cloth bag of a cloth bag dust remover to a certain extent, further ensures the normal and stable operation of the dust removal system equipment of the boiler 1, and realizes the environmental-friendly discharge reaching the standard.
Further, as shown in fig. 2, a rotary screw is provided in the cyclone 4, and the rotary screw is driven by a driving mechanism to rotate.
Further, as shown in fig. 3 to 5, the pressure regulating assembly 5 includes a transmission assembly 51 driven by the driving mechanism to perform transmission, and a pressure control assembly 52 driven by the transmission assembly 51 to reciprocate.
In this embodiment, the driving mechanism is arranged to drive the transmission assembly 51 for transmission, and the transmission assembly drives the two sets of moving members 53 to reciprocate, so as to control the pressure variation difference of the second outlet 43, and change the flow rate of the outlet by using the pressure difference, so that the material of the second outlet 43 is fluctuated by using the flow rate variation, thereby avoiding the occurrence of the blockage phenomenon and ensuring the smooth flow rate.
Further, as shown in fig. 3, the transmission assembly 51 includes:
the first transmission gear 511 is coaxial with and fixedly connected with the output end of the driving mechanism;
a second transmission gear 512, wherein the second transmission gear 512 is located at one side of the first transmission gear 511 and is meshed with the first transmission gear 511; and
and the third transmission gear 513 is coaxially and fixedly connected with the second transmission gear 512.
In detail, the driving mechanism drives the first transmission gear 511 to rotate, the rotating first transmission gear 511 drives the second transmission gear 512 to rotate, then the rotating second transmission gear 512 drives the third transmission gear 513 to rotate, and at this time, the rotating third transmission gear 513 drives the two sets of transmission racks 536 to move in opposite directions or in opposite directions, so as to perform the folding and unfolding operations of the two sets of arc plates 535.
Further, as shown in fig. 4, the pressure control assembly 52 includes two sets of moving members 53 symmetrically disposed on both sides of the cyclone 4.
Further, as shown in fig. 4, the moving member 53 includes a mounting plate 531 fixedly mounted on the cyclone 4, a telescopic unit 534 fixedly connected to the mounting plate 531 and horizontally disposed, an arc plate 535 fixedly connected to the other end of the telescopic unit 534, and a transmission rack 536 having one end fixedly connected to the arc plate 535 and engaged with the third transmission gear 513.
Further, as shown in fig. 4, the teeth of the transmission rack 536 of the two sets of moving members 53 are arranged oppositely.
Further, as shown in fig. 6, the telescopic unit 534 includes a telescopic rod 534a and a spring 534b sleeved outside the telescopic rod 534 a.
Example two
As shown in fig. 3, in which the same or corresponding components as in the first embodiment are denoted by the same reference numerals as in the first embodiment, only the points of difference from the first embodiment will be described below for the sake of convenience. The second embodiment is different from the first embodiment in that:
further, as shown in fig. 3, the third transmission gear 513 is provided in a quarter-tooth structure.
In this embodiment, by setting the third transmission gear 513 as a quarter-tooth structure, when the third transmission gear 513 is meshed with the transmission rack 536, the telescopic unit 534 extends, the two sets of arc-shaped plates 535 are closed, and the pressure of the second outlet 43 increases; when the third transmission gear 513 is not meshed with the transmission rack 536, the telescopic unit 534 resets, the two groups of arc-shaped plates 535 expand, the pressure of the second outlet 43 decreases, and then the pressure difference is realized.
The working process is as follows:
a cyclone separator 4 is arranged between a horizontal flue of a heating surface outlet of a flue at the tail part of a boiler 1 and a semi-dry method desulfurization tower 2, large-particle fly ash is captured and separated after high-speed flue gas flow enters the cyclone separator 4, purified flue gas reaches the top of the desulfurization tower 2 along with the direction of the flue gas and enters a bag-type dust collector, and the captured large-particle fly ash sinks to a fly ash collecting hopper 3 at the bottom through gravity.
In the description of the present invention, it is to be understood that the terms "front and back", "left and right", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or parts referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Of course, in this disclosure, those skilled in the art will understand that the terms "a" and "an" should be interpreted as "at least one" or "one or more," i.e., in one embodiment, a number of an element may be one, and in another embodiment, a number of the element may be plural, and the terms "a" and "an" should not be interpreted as limiting the number.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art in the technical suggestion of the present invention should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. An efficient energy-saving fly ash collecting device comprises a boiler (1), a semi-dry desulfurization tower (2) and a fly ash collecting hopper (3), and is characterized by further comprising a cyclone separator (4) arranged between the boiler (1) and the semi-dry desulfurization tower (2);
an inlet, a first outlet (42) and a second outlet (43) are arranged on the cyclone separator (4), the inlet is communicated with the boiler (1), the first outlet (42) is communicated with the semi-dry desulfurization tower (2), and the second outlet (43) is communicated with the fly ash collecting hopper (3);
and a pressure regulating component (5) is arranged on the second outlet (43), and the pressure regulating component (5) is used for controlling the pressure at the output end of the second outlet (43).
2. An energy efficient fly ash collection device according to claim 1, wherein a rotating screw is arranged in the cyclone (4), and the rotating screw is driven by a driving mechanism to rotate.
3. An energy efficient fly ash collection device according to claim 2, wherein the pressure regulating assembly (5) comprises a transmission assembly (51) driven by the driving mechanism to perform transmission and a pressure control assembly (52) driven by the transmission assembly (51) to reciprocate.
4. An energy efficient fly ash collection device according to claim 3, wherein the transmission assembly (51) comprises:
the first transmission gear (511) is coaxial and fixedly connected with the output end of the driving mechanism;
the second transmission gear (512) is positioned on one side of the first transmission gear (511) and is meshed with the first transmission gear (511); and
and the third transmission gear (513) is coaxial with and fixedly connected with the second transmission gear (512).
5. An energy efficient fly ash collection device according to claim 4 wherein the third drive gear (513) is arranged in a quarter tooth configuration.
6. An energy efficient fly ash collection device according to claim 4 wherein the pressure control assembly (52) comprises two sets of moving members (53) symmetrically arranged on both sides of the cyclone separator (4).
7. The efficient energy-saving fly ash collecting device according to claim 6, wherein the moving member (53) comprises a mounting plate (531) fixedly mounted on the cyclone separator (4), a telescopic unit (534) fixedly connected with the mounting plate (531) and horizontally arranged, an arc-shaped plate (535) fixedly connected with the other end of the telescopic unit (534), and a driving rack (536) with one end fixedly connected with the arc-shaped plate (535) and meshed with the third driving gear (513).
8. An energy efficient fly ash collection device according to claim 7, wherein the teeth of the transmission rack (536) of the two sets of moving members (53) are oppositely arranged.
9. The fly ash collecting device of claim 7, wherein the telescopic unit (534) comprises a telescopic rod (534a) and a spring (534b) sleeved outside the telescopic rod (534 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020995126.8U CN212594495U (en) | 2020-06-03 | 2020-06-03 | Energy-efficient flying dust collection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020995126.8U CN212594495U (en) | 2020-06-03 | 2020-06-03 | Energy-efficient flying dust collection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212594495U true CN212594495U (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020995126.8U Active CN212594495U (en) | 2020-06-03 | 2020-06-03 | Energy-efficient flying dust collection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212594495U (en) |
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2020
- 2020-06-03 CN CN202020995126.8U patent/CN212594495U/en active Active
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