CN211885938U

CN211885938U - Sack cleaner ash bucket heating device

Info

Publication number: CN211885938U
Application number: CN201921960728.3U
Authority: CN
Inventors: 程定山; 龚千代; 仇志超
Original assignee: Hanlan Green Electrostatic Solid Waste Treatment Foshan Co ltd
Current assignee: Hanlan Green Electrostatic Solid Waste Treatment Foshan Co ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-11-10
Anticipated expiration: 2029-11-13

Abstract

The utility model discloses a sack cleaner ash bucket heating device, including the sack cleaner, sack cleaner bottom is provided with the ash bucket, sack cleaner and ash bucket intercommunication, the ash bucket is the hollow structure that a double-walled constitutes, the ash bucket includes inner wall and outer wall, be formed with the cavity runner between inner wall and the outer wall, the ash bucket is equipped with the flue gas import and the exhanst gas outlet with cavity runner intercommunication, the flue gas import be used for with the wind gap intercommunication of getting of draught fan export flue, the waste heat flue gas that gets into from the flue gas import can flow along the cavity runner with the inner wall heating to the ash bucket. The ash bucket heating device of the bag-type dust collector fully utilizes the flue gas waste heat to provide a heat source for heating the ash bucket, and the aims of saving energy and reducing consumption can be achieved while the phenomenon of bridging of the ash bucket is avoided.

Description

Sack cleaner ash bucket heating device

Technical Field

The utility model relates to a flue gas waste heat utilization technical field especially relates to a sack cleaner ash bucket heating device.

Background

At present, there are three main ways for utilizing the waste heat of low-temperature flue gas at home and abroad: an organic Rankine cycle, a heat pipe type air preheater and a low-temperature economizer. The organic Rankine cycle is a Rankine cycle taking low-boiling point organic matters as working media, mainly comprises four parts of a waste heat boiler (or a heat exchanger), a turbine, a condenser and a working medium pump, and is an effective low-grade waste heat power generation technology. But the method is generally applied to cement kilns, geothermal energy and the like, and no data show that the method is applied to garbage power generation at present. The heat pipe type air preheater can improve the temperature of air entering a furnace, but the temperature of the pipe wall is low due to the low air temperature, so that severe low-temperature corrosion is easily caused. The scheme of additionally arranging the low-temperature economizer is that the low-temperature economizer is additionally arranged in a flue at the tail part of the boiler to heat condensed water or feed water to recover the waste heat of flue gas, so that the heat loss of the flue gas is reduced.

The bag-type dust collector is a main means for capturing and collecting dust in flue gas of a garbage power plant at present. The ash bucket is an important component of the bag-type dust collector for temporarily storing the collected fly ash, and the ash bucket can normally store and discharge ash on the premise of ensuring the normal operation of the dust collector. When the temperature of the ash bucket is too low, the ash and the flue gas can generate condensed water, so that the ash blocking causes the blockage of the ash outlet. For the measure of preventing the hardening of the cloth bag, the common method in the industry basically comprises the following steps: 1. and controlling the ash hopper to operate at a low material level. The hardening amount in the ash bucket can be effectively reduced by maintaining the low material level in the ash bucket, but the scraper needs to continuously operate, and the service power consumption is increased. 2. A temperature alarm device is arranged. When the temperature of the ash bucket is reduced, the alarm can be given in time to inform operators to take measures. 3. An electric heating device or a steam heating device or the like is used. The method can keep the temperature of the ash bucket constant, prevent the ash bucket from hardening, but has large energy consumption.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide an utilize flue gas waste heat to provide the sack cleaner ash bucket heating device of heat source for the ash bucket heating, reach energy saving and consumption reduction's purpose when avoiding the ash bucket bridging phenomenon to appear.

The purpose of the utility model is realized by adopting the following technical scheme:

the utility model provides a sack cleaner ash bucket heating device, includes the sack cleaner, sack cleaner bottom is provided with the ash bucket, sack cleaner and ash bucket intercommunication, the ash bucket is the hollow structure that a double-walled constitutes, the ash bucket includes inner wall and outer wall, be formed with the cavity runner between inner wall and the outer wall, the ash bucket is equipped with the gas inlet and the exhanst gas outlet with cavity runner intercommunication, the gas inlet be used for with the draught fan export flue get the wind gap intercommunication, the waste heat flue gas that gets into from the gas inlet can flow along the cavity runner with the inner wall heating to the ash bucket.

Further, the hollow flow passage is of a serpentine structure.

Furthermore, the flue gas inlet is arranged at the lower part of one side of the ash bucket, and the flue gas outlet is arranged at the upper part of one side of the ash bucket.

Further, the inner wall of the ash bucket is provided with a temperature sensor.

Further, the flue gas inlet is communicated with a gas taking port of the outlet flue of the induced draft fan through a flue gas inlet channel.

Further, the smoke ventilator also comprises a booster fan, and the booster fan is arranged on the smoke inlet channel and is positioned at the rear end of the air intake.

Furthermore, the flue gas inlet is provided with a regulating valve.

Further, the flue gas outlet is used for being communicated with a bin of the bag-type dust collector, and the bag-type dust collector is communicated with a flue gas inlet of the draught fan through a flue gas channel.

Further, the ash bucket is in a hollow inverted cone shape.

Furthermore, the lower part of the ash bucket is provided with an ash outlet, and the ash outlet is provided with an ash discharge valve.

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

leading the waste heat flue gas into the hollow flow channel from a gas taking port of an outlet flue of the induced draft fan, and enabling the waste heat flue gas to serve as a heating heat source of the ash bucket; the waste heat flue gas gets into the cavity runner from the flue gas import to flow along the cavity runner, because ash bucket temperature is lower, the waste heat flue gas can heat the ash bucket inner wall, guarantees that the inner wall of ash bucket maintains certain temperature, avoids the ash bucket to appear hardening. This sack cleaner ash bucket heating device make full use of flue gas waste heat provides the heat source for the ash bucket heating, reaches energy saving and consumption reduction's purpose, guarantees simultaneously that the temperature of the inner wall of ash bucket maintains in certain extent, prevents that the bridging phenomenon from appearing in the ash bucket, has ensured ash bucket normal operating, has simple structure, maintains the convenience, advantages such as convenient operation.

Drawings

FIG. 1 is a schematic view of an ash bucket heating device of a bag-type dust collector provided by the present invention;

fig. 2 is a schematic view of the ash bucket heating device of the bag-type dust collector according to the present invention.

In the figure: 1. a bag-type dust collector; 2. an ash hopper; 21. an inner wall; 22. an outer wall; 23. a hollow flow passage; 24. a flue gas inlet; 25. a flue gas outlet; 3. a smoke inlet channel; 4. a booster fan; 5. an air inlet is formed; 6. a flue gas channel.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "one," "another," and the like are used to distinguish similar elements, and these terms and other similar terms are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. Corresponding reference numerals are used throughout the figures to indicate corresponding or corresponding elements (e.g., elements identified as "1 XX" and "2 XX" are structurally identical and functionally similar).

As shown in fig. 1 and fig. 2, for the utility model provides a pair of sack cleaner ash bucket heating device, including

sack cleaner

1, 1 bottom of sack cleaner is provided with ash bucket 2, sack cleaner 1 and ash bucket 2 intercommunication, ash bucket 2 is the hollow structure that a double-walled constitutes, ash bucket 2 includes inner wall 21 and outer wall 22, be formed with cavity runner 23 between inner wall 21 and the outer wall 22, ash bucket 2 is equipped with flue gas inlet 24 and the exhanst gas outlet 25 with cavity runner 23 intercommunication, flue gas inlet 24 is used for getting wind gap 5 intercommunication with draught fan outlet flue, and the waste heat flue gas that gets into from flue gas inlet 24 can flow along cavity runner 23 in order to heat inner wall 21 to ash bucket 2.

On the basis of the structure, waste heat flue gas is introduced into the hollow flow channel 23 from the air intake port 5 of the outlet flue of the induced draft fan, and the waste heat flue gas is used as a heating heat source of the ash bucket 2; the flue gas gets into hollow runner 23 from flue gas import 24 to flow along hollow runner 23, because ash bucket 2 temperature is lower, waste heat flue gas can heat ash bucket 2 inner wall 21, guarantees that ash bucket 2's inner wall 21 maintains certain temperature, avoids ash bucket 2 to appear hardening. The device make full use of flue gas waste heat provides the heat source for ash bucket 2 heating, reaches energy saving and consumption reduction's purpose, guarantees simultaneously that the temperature of 2 inner walls 21 of ash bucket maintains in certain extent, prevents that the bridging phenomenon from appearing in ash bucket 2, has ensured 2 normal operating of ash bucket, has simple structure, maintains the convenience, advantages such as convenient operation.

Preferably, the hollow flow channel 23 has a serpentine structure. The hollow flow channel 23 is set to be of a snake-shaped structure, the heat exchange contact area between waste heat smoke and the inner wall 21 of the ash bucket 2 is increased, the smoke can fully and uniformly heat the inner wall 21 of the ash bucket 2, the heating of the ash bucket 2 is free of low-temperature dead angles, the problem that the temperature of the inner wall 21 of the ash bucket 2 is low due to unsmooth circulation of local smoke is avoided, and the flying ash is hardened or corroded.

Preferably, the inner wall 21 of the ash bucket 2 of the embodiment is thinner, the outer wall 22 is thicker, the thinness of the inner wall 21 is beneficial to fast heat conduction, so that the temperature of the ash bucket 2 rises fast, the thickness of the outer wall 22 is beneficial to heat preservation, meanwhile, the firmness is enhanced, and the service life is prolonged.

Preferably, to prevent the bridging phenomenon of the hopper 2, the temperature of the inner wall 21 of the hopper 2 must be higher than 100 ℃. Consequently, inner wall 21 at ash bucket 2 is provided with temperature sensor, and this temperature sensor is used for being connected with control system, conveniently monitors the temperature of ash bucket 2 at any time, and this design is simple effective utility model, can in time know the temperature in ash bucket 2.

Preferably, the flue gas inlet 24 is arranged at the lower part of one side of the ash hopper 2, and the flue gas outlet 25 is arranged at the upper part of one side of the ash hopper 2. Because the flying ash drops into the ash bucket 2 from the bag-type dust collector 1 above, the flying ash at the lower part of the ash bucket 2 has lower temperature, and the flying ash at the upper part of the ash bucket 2 has higher temperature, so the flue gas inlet 24 is arranged at the lower part of the ash bucket 2, the waste heat flue gas heats the lower part of the ash bucket 2 firstly, the temperature at the lower part of the ash bucket 2 is prevented from being too low, and the ash bucket 2 is prevented from hardening.

Preferably, the flue gas inlet 24 is communicated with the air intake 5 of the outlet flue of the induced draft fan through the flue gas inlet channel 3. So can conveniently carry the waste heat flue gas in the hollow runner 23 to heat ash bucket 2.

Specifically, this embodiment further includes booster fan 4, still includes booster fan 4, booster fan 4 install on advancing cigarette passageway 3 and be located the rear end of air intake 5. Through setting up booster fan 4, for extracting the waste heat flue gas and providing the pressure head, can also increase the flow of extraction flue gas simultaneously.

In particular, the flue gas inlet 24 is provided with a regulating valve. Through setting up the governing valve, so can adjust the flue gas flow that gets into in the cavity runner 23 according to 2 wall temperatures of ash bucket or 2 inside temperature levels of ash bucket, can guarantee like this that 2 inner walls of ash bucket 21 temperature are higher than 100 ℃ and guarantee that the flue gas temperature is higher than sour dew point temperature (the condensation temperature of sulphuric acid steam in the flue gas is sour dew point temperature, sour dew point temperature is 140 ~ 160 ℃), so avoid ash bucket 2 to appear bridging.

Preferably, the flue gas outlet 25 is used for communicating with the chamber of the bag-type dust collector 1, and the bag-type dust collector 1 is communicated with the flue gas inlet of the induced draft fan through the flue gas channel 6. The flue gas which has used up the waste heat is discharged from the ash bucket 2 from the flue gas outlet 25 and flows into the cabin of the bag-type dust collector 1 to be mixed with the flue gas of the dust collector, and then flows back to the induced draft fan from the flue gas channel 6 to recycle the flue gas, thereby achieving the purposes of energy saving and consumption reduction.

Preferably, the ash bucket 2 is in a hollow inverted cone shape, the design is convenient for the ash bucket 2 to remove dust, and the lower part of the ash bucket 2 is also provided with an ash outlet which is convenient for discharging the dust in the ash bucket 2; the ash outlet is also provided with an ash discharging valve, when the dust in the ash bucket 2 is accumulated to a certain amount, the ash discharging valve is opened, so that the dust in the ash bucket 2 can be discharged in time.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. The utility model provides a sack cleaner ash bucket heating device, a serial communication port, including the sack cleaner, sack cleaner bottom is provided with the ash bucket, sack cleaner and ash bucket intercommunication, the ash bucket is the hollow structure that a double-walled constitutes, the ash bucket includes inner wall and outer wall, be formed with the cavity runner between inner wall and the outer wall, the ash bucket is equipped with the gas inlet and the exhanst gas outlet with cavity runner intercommunication, the gas inlet be used for with the wind gap intercommunication of getting of draught fan export flue, the waste heat flue gas that gets into from the gas inlet can flow along the cavity runner with the inner wall heating to the ash bucket.

2. The ash bucket heating device of a bag-type dust collector as claimed in claim 1, wherein the hollow flow passage is of a serpentine structure.

3. The ash bucket heating device of a bag-type dust collector as defined in claim 1, wherein the flue gas inlet is provided at a lower portion of one side of the ash bucket, and the flue gas outlet is provided at an upper portion of one side of the ash bucket.

4. The ash bucket heating device of a bag-type dust collector as claimed in claim 1, wherein the inner wall of the ash bucket is provided with a temperature sensor.

5. The ash bucket heating device of the bag-type dust collector as claimed in claim 1, wherein the flue gas inlet is communicated with the air intake port of the outlet flue of the induced draft fan through a flue gas inlet channel.

6. The ash bucket heating device of a bag-type dust collector as claimed in claim 5, further comprising a booster fan, wherein the booster fan is installed on the smoke inlet channel and is positioned at the rear end of the air intake opening.

7. The ash bucket heating device of a bag-type dust collector as claimed in claim 1, wherein the flue gas inlet is provided with a regulating valve.

8. The ash bucket heating device of a bag-type dust collector as claimed in claim 1, wherein the flue gas outlet is used for being communicated with the chamber of the bag-type dust collector, and the bag-type dust collector is communicated with the flue gas inlet of the induced draft fan through a flue gas channel.

9. The ash bucket heating device of a bag-type dust collector as claimed in claim 1, wherein the ash bucket is in a hollow inverted cone shape.

10. The ash bucket heating device of a bag-type dust collector as defined in claim 1, wherein the ash bucket is provided with an ash outlet at the lower part thereof, and the ash outlet is provided with an ash discharge valve.