CN204829883U - Novel smokeless boiler - Google Patents
Novel smokeless boiler Download PDFInfo
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- CN204829883U CN204829883U CN201520524827.2U CN201520524827U CN204829883U CN 204829883 U CN204829883 U CN 204829883U CN 201520524827 U CN201520524827 U CN 201520524827U CN 204829883 U CN204829883 U CN 204829883U
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Abstract
The utility model discloses a novel smokeless boiler, contain the combustion chamber, the air door, receive grey funnel, the lime -ash conveyer belt, pond and flue, the combustion chamber lower part is equipped with the fire bars, the fire bars below is equipped with the air door, the air door below is equipped with receives grey funnel, it is equipped with the lime -ash conveyer belt to receive grey funnel below, lime -ash conveyer belt lower extreme is arranged in inside the pond, a combustion chamber upper portion and a flue link to each other, be equipped with out the flue air -blower on the play flue in proper order, go out flue smoke abatement device, on saying, the return -air is equipped with the tonifying qi ware in proper order, return -air way air -blower, be equipped with U type filtering ponds on the intake duct in proper order, the intake duct relief valve, intake duct smoke abatement device, the tonifying qi ware, the manometer, rotatory steel sheet, lead and drench the valve, thereby it handles to realize no fuming. Compared with the prior art, but this boiler has pollution -free blowdown, fuel rate of utilization height, inside gas cyclic utilization, the inside long -pending dirty rate low grade advantage of flue. The utility model discloses but wide application in industrial production and domestic heating direction.
Description
Technical field
The utility model relates to a kind of boiler, particularly a kind of Novel smokeless boiler.
Background technology
The boiler adopted in prior art, because technology is old, production, life in can cause very large waste and pollution, be mainly reflected in following some:
One is because existing boiler coal filling hole and ventilating opening are all positioned at bottom, combustion chamber, and during coal burning, upwards, coal can not burnout flare completely, can discharge the fuel of a large amount of incomplete combustion, not only wastes resource but also contaminated environment.
Two be discharge place of existing boiler ash directly and extraneous contact, can dust raising phenomenon be caused during process lime-ash.
Three is that existing flue adopts straight flue, and this flue, when discharging waste gas, can be taken a large amount of flyash out of or be stayed and be attached in flue, and it is large not only to clear up difficulty, also creates exhaust inconvenience, affects efficiency of combustion, cause wasting phenomenon.
Four is that unburnt gas directly enters in air, not only contaminated environment, but also causes waste.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, provide a kind of rationally distributed, efficiency of combustion is high, the less boiler of energy-conserving and environment-protective.
For achieving the above object, the technical scheme that the utility model adopts is: a kind of Novel smokeless boiler, comprise combustion chamber, air door, receive grey funnel, lime-ash conveyer belt, pond and flue, it is characterized in that: top, described combustion chamber is connected with smoke outlet flue, middle part is equipped with fire-peeping mirror and feeding port, bottom is provided with fire bars, air door is provided with below fire bars, air door is connected with air door air blast, be provided with below air door and receive grey funnel, receive below grey funnel and be provided with lime-ash conveyer belt, described lime-ash conveyer belt one end is placed in below bottom of combustion chamber air door, the other end is placed in inside, pond, described bottom of combustion chamber is provided with space for collecting ashes in a stove enclosing, above described lime-ash conveyer belt, space for collecting ashes in a stove enclosing exterior wall is provided with water level fluid-tight wall, described smoke outlet flue is provided with smoke outlet flue air blast, described smoke outlet flue is connected with smoke outlet flue smoke eliminator, described smoke outlet flue smoke eliminator is connected with return-air road, described return-air road is provided with air compensation device, return-air road air blast, described return-air road air blast is connected with air intake duct, described air intake duct is provided with U-shaped filtering ponds, air intake duct relief valve, air intake duct smoke eliminator, air compensation device, Pressure gauge, rotation steel plate is provided with after described Pressure gauge, described air intake duct is connected with bottom of combustion chamber, interface is between lime-ash conveyer belt and space for collecting ashes in a stove enclosing, and interface is provided with a small front apron, showering guilding valve is provided with before described air intake duct and bottom of combustion chamber interface position.
Further, smoke outlet flue smoke eliminator inside is provided with W type smoke expelling device and U-shaped smoke expelling device, ash output opening is provided with bottom described W type smoke expelling device, inside is provided with inlet baffle, and outlet is provided with smoke abatement plate, and smoke abatement plate is connected with smoke outlet flue smoke eliminator by rotating shaft, described U-shaped smoke expelling device inside is provided with smoke outlet flue smoke eliminator gas break-in plate, bottom is provided with ash output opening, and exit is provided with smoke abatement plate, and described smoke abatement plate is connected with smoke outlet flue smoke eliminator by rotating shaft.
Further, air intake duct smoke eliminator inside is provided with U-shaped smoke expelling device, and described U-shaped smoke expelling device inside is provided with air intake duct smoke eliminator gas break-in plate, and bottom is provided with ash output opening, and exit is provided with smoke abatement plate, and described smoke abatement plate is connected with air intake duct smoke eliminator by rotating shaft.
Further; air compensation device is provided with filtration core near pipeline side, and opposite side is provided with air compensation device baffle plate, and described air compensation device baffle plate is connected with air compensation device by rotating shaft; described air compensation device baffle plate area is greater than air compensation device tonifying Qi hole area, and described air compensation device outside is provided with air compensation device protective cover.
Further, U-shaped filtering ponds are provided with in air intake duct, described U-shaped filtering ponds are provided with import filtering ponds and egress filtering pond, described import filtering ponds are communicated with the sluice of bottom with the air flue of crossing of egress filtering pond by top, the pipeline of described U-shaped filtering ponds entrance stretches into the inner and mouth of pipe of import filtering ponds between two passages, described U-shaped filtering ponds liquid levels is higher than position, inlet tube road junction and lower than crossing air flue extreme lower position, described egress filtering pond is provided with a steel plate with holes below exit position, and described steel plate aperture with holes is uniformly distributed.
Further, the grey funnel of described receipts is placed in above lime-ash conveyer belt, ensures that lime-ash falls on lime-ash conveyer belt completely.
Further, the angle that lime-ash conveyer belt and horizontal direction are formed is 30 ° ~ 45 °.
Further, lime-ash conveyer belt is made up of stainless steel.
Further, lime-ash conveyer belt drives running counterclockwise by motor.
Further, the angle that smoke outlet flue smoke eliminator gas break-in plate and horizontal direction are formed is 45 ° ~ 60 °.
Further, the angle that air intake duct smoke eliminator gas break-in plate and horizontal direction are formed is 135 ° ~ 150 °.
Further, after pond is full of water, form fluid-tight with space for collecting ashes in a stove enclosing.
Further, space for collecting ashes in a stove enclosing is built into by refractory brick.
Further, rotate steel plate to be connected with air intake duct by rotating shaft.
Further, be positioned at the small front apron of air intake duct and bottom of combustion chamber interface, area must not be greater than 1/2nd of air intake duct cross-sectional area.
The utility model compared with prior art, has the following advantages:
1. bottom of combustion chamber forms fluid-tight by space for collecting ashes in a stove enclosing and pond liquid level, when lime-ash drops, avoids airborne dust, and can not produce reentrainment of dust when regathering lime-ash.
2. the flyash in this boiler combustion incomplete space for collecting ashes in a stove lime-ash, smoke outlet flue smoke eliminator, air intake duct smoke eliminator dustlessly can be collected, is suppressed, and again sends into combustion chamber, thus substantially increases the utilization rate of fuel.
3. be provided with multiple smoke abatement plate and air break-in plate in this boiler smoke outlet flue smoke eliminator and air intake duct smoke eliminator, emission produced to burning and repeatedly slows down, after break-in, gas and solid particle are carried out physical separation, realizes smokeless process.
4. air compensation device is provided with filtration core, during tonifying Qi, can prevent the solid particle in air from entering in system.
5. air compensation device baffle plate can only be opened side, uses when can only be used for tonifying Qi, can Leakage Gas in anti-locking system.
6. be provided with air cleaner after air intake duct relief valve, can prevent intrasystem solid particle from being polluted by the air-flow system of taking out of when disappointing.
7.U type filtering ponds effectively can filter flyash in flue gas and other solid particulate matter, and steel plate with holes then can stop the steam produced in a part of filtering ponds, and the gas entering air intake duct like this can be purer, thus improve combustion-supporting efficiency.
8., before showering guilding valve is located at air intake duct and interface position, combustion chamber, the water that can be produced by water vapor condensation in discharge tube, effectively can reduce the humidity of pipe interior.
9. the incomplete gas of system combustion, can return in stove and carry out second-time burning, thus improve efficiency of combustion.
10. the rotation steel plate in pipeline, smoke eliminator, U-shaped filtering ponds can stop the gas antikinesis caused due to pressure change, effectively can ensure normal operation of boiler.
Accompanying drawing explanation
Fig. 1 is a kind of Novel smokeless boiler schematics of the utility model.
Fig. 2 is a kind of Novel smokeless boiler tubing of the utility model schematic diagram.
Fig. 3 is a kind of Novel smokeless boiler of the utility model smoke outlet flue smoke eliminator internal structure schematic diagram.
Fig. 4 is a kind of Novel smokeless boiler of the utility model air intake duct smoke eliminator internal structure schematic diagram.
Fig. 5 is a kind of Novel smokeless boiler of the utility model air compensation device internal structure schematic diagram.
In the drawings, 1. boiler furnace, 2. combustion chamber, 3. sight glass, 4. feeding port, 5. fire bars, 6. air door, 7. pond, 8. lime-ash conveyer belt, 9. space for collecting ashes in a stove enclosing, 10. air inlet, 11. receive grey funnel, 12. showering guilding valves, 13. smoke outlet flues, 14. small front aprons, 15. pond fluid-tight walls, 16. smoke outlet flue air blasts, 17. smoke outlet flue smoke eliminators, 18. air compensation devices, 19. return-air roads, 20. return-air road air blasts, 21. air intake ducts, 22.U type filtering ponds, 23. steel plates with holes, 24. air intake duct relief valves, 25. air cleaners, 26. air intake duct smoke eliminators, 27. Pressure gauges, 28. rotate steel plate, 29. inlet baffle, 30. rotating shafts, 31. smoke abatement plates, 32. smoke outlet flue smoke eliminator gas break-in plates, 33. ash output openings, 34.W type smoke expelling device, 35.U type smoke expelling device, 36. air intake duct smoke eliminator gas break-in plates, 37. filtration core, 38. air compensation device baffle plates, 39. air compensation device protective covers, 40. air door air blasts, 41. sluices, 42. cross air flue, 43. import filtering ponds, 44. egress filtering ponds.
Detailed description of the invention
The utility model is described in further detail for embodiment plan given below; but can not be interpreted as it is restriction to the utility model protection domain; those skilled in the art to nonessential improvement and adjustment more of the present utility model, still belong to protection domain of the present utility model according to the utility model content.
At Fig. 1, Fig. 2, Fig. 3, Fig. 4, in Fig. 5, comprise: 1. boiler furnace, 2. combustion chamber, 3. sight glass, 4. feeding port, 5. fire bars, 6. air door, 7. pond, 8. lime-ash conveyer belt, 9. space for collecting ashes in a stove enclosing, 10. air inlet, 11. receive grey funnel, 12. showering guilding valves, 13. smoke outlet flues, 14. small front aprons, 15. pond fluid-tight walls, 16. smoke outlet flue air blasts, 17. smoke outlet flue smoke eliminators, 18. air compensation devices, 19. return-air roads, 20. return-air road air blasts, 21. air intake ducts, 22.U type filtering ponds, 23. steel plates with holes, 24. air intake duct relief valves, 25. air cleaners, 26. air intake duct smoke eliminators, 27. Pressure gauges, 28. rotate steel plate, 29. inlet baffle, 30. rotating shafts, 31. smoke abatement plates, 32. smoke outlet flue smoke eliminator gas break-in plates, 33. ash output openings, 34.W type smoke expelling device, 35.U type smoke expelling device, 36. air intake duct smoke eliminator gas break-in plates, 37. filtration core, 38. air compensation device baffle plates, 39. air compensation device protective covers, 40 air door air blasts, 41. sluices, 42. cross air flue, 43. import filtering ponds, 44. egress filtering ponds.
Top, combustion chamber 2 is connected with smoke outlet flue 13, middle part is equipped with fire-peeping mirror 3 and feeding port 4, bottom is provided with fire bars 5, air door 6 is provided with below fire bars 5, air door 6 is connected with air door air blast 40, be provided with below air door 6 and receive grey funnel 11, receive below grey funnel 11 and be provided with lime-ash conveyer belt 8, lime-ash conveyer belt 8 one end to be placed in bottom combustion chamber 2 below air door 6, it is inner that the other end is placed in pond 7, space for collecting ashes in a stove enclosing 9 is provided with bottom combustion chamber 2, above lime-ash conveyer belt 8, space for collecting ashes in a stove enclosing 9 exterior wall is provided with water level fluid-tight wall 15, smoke outlet flue 13 is connected with combustion chamber 2, smoke outlet flue 13 is provided with smoke outlet flue air blast 16, smoke outlet flue 13 is connected with smoke outlet flue smoke eliminator 17, smoke outlet flue smoke eliminator 17 is connected with return-air road 19, return-air road 19 is provided with four air compensation devices 18, return-air road 19 is connected with return-air road air blast 20, return-air road air blast 20 is connected with air intake duct 21, air intake duct 21 is provided with U-shaped filtering ponds 22, an air intake duct relief valve 24, air intake duct smoke eliminator 26, two air compensation devices 18, a Pressure gauge 27, air cleaner 25 is provided with after air intake duct relief valve 24, air intake duct 21 is connected with rotation steel plate 28, air intake duct 21 is connected with bottom combustion chamber 2, interface is between lime-ash conveyer belt 8 and space for collecting ashes in a stove enclosing 9, and interface is provided with a small front apron 14, showering guilding valve 12 is provided with before described air intake duct 21 and bottom interface position, combustion chamber 2.
Smoke outlet flue smoke eliminator 17 inside is provided with five smoke expelling devices, what be connected with smoke outlet flue 13 side is W type smoke expelling device 34, all the other four smoke expelling devices are U-shaped smoke expelling device 35, two ash output openings 33 are provided with bottom W type smoke expelling device 34, inside is provided with inlet baffle 29, outlet is provided with smoke abatement plate 31, smoke abatement plate 31 is connected with smoke outlet flue smoke eliminator 17 by rotating shaft 30, U-shaped smoke expelling device 35 inside is provided with smoke outlet flue smoke eliminator gas break-in plate 32, bottom is provided with an ash output opening 33, exit is provided with three groups of smoke abatement plates 31, and smoke abatement plate 31 is connected with smoke outlet flue smoke eliminator 17 by rotating shaft 30.
Air intake duct smoke eliminator 26 inside is provided with two U-shaped smoke expelling devices 35, U-shaped smoke expelling device 35 inside is provided with air intake duct smoke eliminator gas break-in plate 36, bottom is provided with an ash output opening 33, and exit is provided with three groups of smoke abatement plates 31, and smoke abatement plate 31 is connected with air intake duct smoke eliminator 26 by rotating shaft 30.
Air compensation device 18 is provided with filtration core 37 near pipeline side, and opposite side is provided with air compensation device baffle plate 38, and air compensation device baffle plate 38 is connected with air compensation device 18 by rotating shaft 30, and air compensation device 18 outside is provided with air compensation device protective cover 39.
Lime-ash conveyer belt 8 and horizontal direction angle are 30 °.
Lime-ash conveyer belt 8 is made up of stainless steel.
Lime-ash conveyer belt 8 is driven by motor.
The angle that smoke outlet flue smoke eliminator gas break-in plate 32 and horizontal direction are formed is 45 °.
The angle that air intake duct smoke eliminator gas break-in plate 36 and horizontal direction are formed is 135 °.
After pond 7 is full of water, form fluid-tight with space for collecting ashes in a stove enclosing 9.
Space for collecting ashes in a stove enclosing 9 is built into by refractory brick.
Air compensation device baffle plate 38 area is greater than tonifying Qi hole area.
Small front apron 14 area gets 1/3 of air intake duct cross-sectional area.
During work; first add water by pond 7, carry out fluid-tight, water level adds to 2/3 place to overhead height bottom water level fluid-tight wall 15; again U-shaped filtering ponds 22 were added water to 5 centimeters below air flue extreme lower position; control air door 6, air inlet 10 is all opened, opens the air compensation device protective cover 39 on air compensation device 18; open air intake duct relief valve 24; close all ash output openings 33, start air door air blast 40, smoke outlet flue air blast 16, return-air road air blast 20, start lime-ash conveyer belt 8.If do not carry out fluid-tight during work, then do not need to open air door air blast 40.
The fuel lighted is added from feeding port 4; the fuel do not fired is added again according to combustion case; the situation in combustion chamber 2 is observed by fire-peeping mirror 3; to be combusted stable after the air compensation device protective cover 39 on air compensation device 18 is mounted to original position; close air intake duct relief valve 26; through the valuable gases that produces of burning, can return and carry out combustion-supporting in stove, thus realize gas circulation.
During routine work, observe on Pressure gauge 27 and indicate numerical value, when pressure is less than 0Kpa, opens air compensation device protective cover 39 and carry out tonifying Qi, when pressure is greater than 6Kpa, opens air intake duct relief valve 24 and carry out pressure release, exhaust, when draining into 3Kpa, close relief valve.When collection in smoke outlet flue smoke eliminator 17 and air intake duct smoke eliminator 26 has a large amount of flyash, open ash output opening 33, collect, after incomplete for burning black flyash is compressed, put into feeding port 4, carry out second-time burning.When having a large amount of water in air intake duct 21, opening showering guilding valve 12 and discharging water.The slag produced in combustion chamber 2 is by fire bars 5 and receive grey funnel 11 and fall on conveyer belt 8, lime-ash conveyer belt 8 is made up of stainless steel, and drive running counterclockwise by motor, the lime-ash fallen on lime-ash conveyer belt 8 is transported in pond 7, and carry out cooling process by the liquid in pond 7, the lime-ash collected in pond 7 is by after drying, and the incomplete lime-ash that burns carries out compressing in rear feeding feeding port 4 and carries out second-time burning, burns and makes construction material after ash collection completely.
Claims (10)
1. a Novel smokeless boiler, comprise combustion chamber (2), air door (6), receive grey funnel (11), lime-ash conveyer belt (8), pond (7) and flue, it is characterized in that: described combustion chamber (2) top is connected with smoke outlet flue (13), middle part is equipped with fire-peeping mirror (3) and feeding port (4), bottom is provided with fire bars (5), fire bars (5) below is provided with air door (6), air door (6) is connected with air door air blast (40), air door (6) below is provided with receives grey funnel (11), receive grey funnel (11) below and be provided with lime-ash conveyer belt (8), described lime-ash conveyer belt (8) one end is placed in below, bottom air door, combustion chamber (2) (6), it is inner that the other end is placed in pond (7), bottom, described combustion chamber (2) is provided with space for collecting ashes in a stove enclosing (9), described lime-ash conveyer belt (8) top space for collecting ashes in a stove enclosing (9) exterior wall is provided with water level fluid-tight wall (15), described smoke outlet flue (13) is provided with smoke outlet flue air blast (16), described smoke outlet flue (13) is connected with smoke outlet flue smoke eliminator (17), described smoke outlet flue smoke eliminator (17) is connected with return-air road (19), described return-air road (19) is provided with air compensation device (18), return-air road air blast (20), described return-air road air blast (20) is connected with air intake duct (21), described air intake duct (21) is provided with U-shaped filtering ponds (22), air intake duct relief valve (24), air intake duct smoke eliminator (26), air compensation device (18), Pressure gauge (27), be provided with after described Pressure gauge (27) and rotate steel plate (28), described air intake duct (21) is connected with combustion chamber (2) bottom, interface is positioned between lime-ash conveyer belt (8) and space for collecting ashes in a stove enclosing (9), and interface is provided with a small front apron (14), showering guilding valve (12) is provided with before described air intake duct (21) and combustion chamber (2) bottom interface place.
2. a kind of Novel smokeless boiler as claimed in claim 1, it is characterized in that: described smoke outlet flue smoke eliminator (17) inside is provided with W type smoke expelling device (34) and U-shaped smoke expelling device (35), described W type smoke expelling device (34) bottom is provided with ash output opening (33), inside is provided with inlet baffle (29), outlet is provided with smoke abatement plate (31), smoke abatement plate (31) is connected with smoke outlet flue smoke eliminator (17) by rotating shaft (30), described U-shaped smoke expelling device (35) inside is provided with smoke outlet flue smoke eliminator gas break-in plate (32), bottom is provided with ash output opening (33), exit is provided with smoke abatement plate (31), described smoke abatement plate (31) is connected with smoke outlet flue smoke eliminator (17) by rotating shaft (30).
3. a kind of Novel smokeless boiler as claimed in claim 1, it is characterized in that: described air intake duct smoke eliminator (26) inside is provided with U-shaped smoke expelling device (35), described U-shaped smoke expelling device (35) inside is provided with air intake duct smoke eliminator gas break-in plate (36), bottom is provided with ash output opening (33), exit is provided with smoke abatement plate (31), and described smoke abatement plate (31) is connected with air intake duct smoke eliminator (26) by rotating shaft (30).
4. a kind of Novel smokeless boiler as claimed in claim 1; it is characterized in that: described air compensation device (18) is provided with filtration core (37) near pipeline side; opposite side is provided with air compensation device baffle plate (38); described air compensation device baffle plate (38) is connected with air compensation device (18) by rotating shaft (30); described air compensation device baffle plate (38) area is greater than air compensation device tonifying Qi hole area, and described air compensation device (18) outside is provided with air compensation device protective cover (39).
5. a kind of Novel smokeless boiler as claimed in claim 1, it is characterized in that: described U-shaped filtering ponds (22) are provided with import filtering ponds (43) and egress filtering pond (44), described import filtering ponds (43) are communicated with the sluice (41) of bottom with egress filtering pond (44) air flue (42) of crossing by top, the pipeline of described U-shaped filtering ponds (22) entrance stretches into the inner and mouth of pipe of import filtering ponds (43) between two passages, described U-shaped filtering ponds (22) liquid levels is higher than position, inlet tube road junction and lower than crossing air flue (42) extreme lower position, a steel plate with holes (23) is provided with below described egress filtering pond (44) exit position, described steel plate with holes (23) aperture is uniformly distributed.
6. a kind of Novel smokeless boiler as claimed in claim 1, is characterized in that: the angle that described smoke outlet flue smoke eliminator gas break-in plate (32) and horizontal direction are formed is 45 ° ~ 60 °.
7. a kind of Novel smokeless boiler as claimed in claim 1, is characterized in that: the angle that described air intake duct smoke eliminator gas break-in plate (36) and horizontal direction are formed is 135 ° ~ 150 °.
8. a kind of Novel smokeless boiler as claimed in claim 1, is characterized in that: the angle that described lime-ash conveyer belt (8) and horizontal direction are formed is 30 ° ~ 45 °, and described lime-ash conveyer belt (8) is made up of stainless steel.
9. a kind of Novel smokeless boiler as claimed in claim 1, is characterized in that: described rotation steel plate (28) is connected with air intake duct (21) by rotating shaft (30).
10. a kind of Novel smokeless boiler as claimed in claim 1, is characterized in that: described air intake duct (21) must not be greater than 1/2nd of air intake duct cross-sectional area with small front apron (14) area at combustion chamber (2) bottom interface place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520524827.2U CN204829883U (en) | 2015-07-20 | 2015-07-20 | Novel smokeless boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520524827.2U CN204829883U (en) | 2015-07-20 | 2015-07-20 | Novel smokeless boiler |
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| Publication Number | Publication Date |
|---|---|
| CN204829883U true CN204829883U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520524827.2U Active CN204829883U (en) | 2015-07-20 | 2015-07-20 | Novel smokeless boiler |
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| CN (1) | CN204829883U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990541A (en) * | 2017-11-17 | 2018-05-04 | 芜湖新农夫机械有限公司 | It is a kind of from dedusting hot-blast stove |
-
2015
- 2015-07-20 CN CN201520524827.2U patent/CN204829883U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990541A (en) * | 2017-11-17 | 2018-05-04 | 芜湖新农夫机械有限公司 | It is a kind of from dedusting hot-blast stove |
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