CN201074901Y

CN201074901Y - Dual-counterflow environment protection energy-saving hot-air furnace

Info

Publication number: CN201074901Y
Application number: CNU200720111458XU
Authority: CN
Inventors: 季连祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-30
Filing date: 2007-06-30
Publication date: 2008-06-18
Anticipated expiration: 2017-06-30

Abstract

The utility model relates to a double reverse-flow environment-friendly and energy-conserving hot air furnace, comprising a crude dust settling chamber, a firebox, a heat exchanger and a smoke flow distributing head. The firebox is provided with a furnace door. The crude dust settling chamber is arranged in the lower part of the firebox, and the heat exchanger appears as the multi-layer cylinder structure. A hot air channel layer, a circle flue layer and a cold air channel layer are respectively arranged from inside to outside in the heat exchanger which is arranged on the outer side of the firebox. The smoke flow distributing head is arranged on the upper part of the firebox, and a smoke channel and an air channel are arranged in the smoke flow distributing head, and a cold air inlet is arranged on the lower part of the cold air channel layer, and a hot air outlet is arranged on the lower part of the hot air channel layer and a smoke vent is arranged on the lower part of the circle flue channel. A semi-closed dust-removing combustion chamber cover is arranged on the lower part of the firebox, and the semi-closed dust-removing combustion chamber cover is around the upper part of a firebox grid. The semi-closed dust-removing combustion chamber cover comprises a top surface and an annular side, and the top surface is closed and a smoke hatch is cut on the annular side. The utility model provides a double reverse-flow environment-friendly and energy-conserving hot air furnace with high combustion efficiency and better environment protecting capability.

Description

Two adverse current environmental protection energy-saving hot blast furnaces

(1) technical field

The utility model belongs to air heat exchange equipment, relates in particular to a kind of hot-blast stove.

(2) background technology

Shortcomings such as existing cartridge type, that the tube group type hot-blast stove exists volume is big, and power consumption is big, high material consumption, and the life-span is short, energy consumption is high, the thermal efficiency is low.

It as the patent No. 03205053.4 Chinese utility model patent, denomination of invention is two adverse current highly efficient durable metal fever wind furnaces, provide that a kind of volume is little, energy consumption is low, simple in structure, low cost of manufacture, power consumption are low, the hot-blast stove of long service life, but combustion air passed the coal seam and can take away some dust when also there was burning in this hot-blast stove, simultaneously because the insufficient generation black smoke of burning, efficiency of combustion is lower, and the dust of these discharges, the direct contaminated environment of black smoke do not meet environmental requirement.

(3) summary of the invention

The deficiency of, contaminated environment low for the efficiency of combustion that overcomes existing hot-blast stove, feature of environmental protection difference, the utility model provide a kind of efficiency of combustion height, two adverse current environmental protection energy-saving hot blast furnaces that the feature of environmental protection is good.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of pair of adverse current environmental protection energy-saving hot blast furnace, comprise thick dirt expansion chamber, the combustion chamber, heat exchanger and plume dispensing head, described combustion chamber has fire door, described heat exchanger is the multilayered cylindrical structure, heat exchanger is respectively equipped with the hot-flow flue layer from the inside to the outside, annular smoke flue layer and cold air duct layer, described heat exchanger is positioned at the outside, combustion chamber, described plume dispensing head is positioned at the top of combustion chamber, be provided with exhaust gases passes in the described plume dispensing head, air duct, the mouth that advances of described exhaust gases passes is communicated with the top, combustion chamber, the outlet flue of described exhaust gases passes is communicated with the top of described annular smoke flue layer, the air inlet of described air duct is communicated with the top of cold air duct layer, the gas outlet of described air duct is communicated with the top of hot-flow flue layer, the below of described cold air duct layer is the cold wind import, the below of described hot-flow flue layer is provided with hot-blast outlet, the below of described annular smoke flue layer is provided with exhaust opening, the bottom of described combustion chamber is provided with semi-enclosed dedusting combustion chamber cover, described semi-enclosed dedusting combustion chamber covers on around the top of combustion chamber grate, described semi-enclosed dedusting combustion chamber cover comprises end face, the ring-type side, described end face sealing, described ring-type side has smoke hatch.

Further, described semi-enclosed dedusting combustion chamber cover bottom is the combustion chamber that fire-resistant frame corral becomes, and the top of described combustion chamber is the dedusting chamber.

Further again, described smoke hatch is at least two, and smoke hatch distributes on the ring-type side.

Further, dust-proof plate is installed, on described dust-proof plate, is had exhaust smoke hole at the middle part of described combustion chamber.

Described each exhaust smoke hole evenly distributes on described dust-proof plate.

The outlet flue of described plume dispensing head is communicated with at least two flues, and described each flue is communicated with the top of annular smoke flue.

The outside is provided with blast pipe below described combustion chamber, and the wall of described fire-resistant frame circle is provided with at least two air intake arms, and described air intake arm is communicated with described blast pipe.

Described thick dirt expansion chamber comprises exhaust opening, thick dirt locker room, and described thick dirt locker room is provided with gets the dirt door.

Technical conceive of the present utility model is: adopt the low flow velocity of low temperature, the two countercurrent heat exchange principles of high-temperature high-flow rate, and with the reasonable semi-enclosed second-time burning method unburnt carbon particulate in burning back for the first time, combustibles such as fuel gas are being able to abundant completing combustion in the burning for the second time, adopt flue gas to be tortuous camber line ascension and strengthen the heat exchange effect.

Secondary resistance dirt device is set again, can guarantees that thick dirt holds back, to reach environmental protection, energy-conservation, efficient effect.

The beneficial effects of the utility model mainly show: efficiency of combustion height, the feature of environmental protection are good.

(4) description of drawings

Fig. 1 is the structure chart of of the present utility model pair of adverse current environmental protection energy-saving hot blast furnace.

Fig. 2 is the A-A schematic diagram of Fig. 1.

Fig. 3 is the structure chart of plume dispensing head.

Fig. 4 is the structural representation of fire-resistant steel ring.

Fig. 5 is the B-B schematic diagram of Fig. 4.

(5) specific embodiment

Below in conjunction with accompanying drawing the utility model is further described.

With reference to Fig. 1-Fig. 5, a kind of pair of adverse current environmental protection energy-saving hot blast furnace, comprise thick dirt expansion chamber 4, combustion chamber 10, heat exchanger and plume dispensing head 13, described combustion chamber has fire door 2, described heat exchanger is the multilayered cylindrical structure, heat exchanger is respectively equipped with hot-flow flue layer 15 from the inside to the outside, annular smoke flue layer 16 and cold air duct layer 17, it can be the 3-5 layer, described heat exchanger is positioned at 10 outsides, combustion chamber, described plume dispensing head 13 is positioned at the top of combustion chamber 10, be provided with exhaust gases passes in the described plume dispensing head 13, air duct, the mouth that advances of described exhaust gases passes is communicated with 10 tops, combustion chamber, the outlet flue of described exhaust gases passes is communicated with the top of described annular smoke flue layer 16, the air inlet of described air duct is communicated with the top of cold air duct layer 17, the gas outlet of described air duct is communicated with the top of hot-flow flue layer 15, the below of described cold air duct layer 17 is cold wind import 1, the below of described hot-flow flue layer 15 is provided with hot-blast outlet 18, the below of described annular smoke flue layer 16 is provided with exhaust opening 8, the bottom of described combustion chamber is provided with semi-enclosed dedusting combustion chamber cover 6, described semi-enclosed dedusting combustion chamber cover 6 is around above the combustion chamber grate 3, described semi-enclosed dedusting combustion chamber cover 6 comprises end face, the ring-type side, described end face sealing, described ring-type side has smoke hatch 9.

Described semi-enclosed dedusting combustion chamber cover 6 bottoms are the combustion chamber 19 that fire-resistant frame circle 20 surrounds, and the top of described combustion chamber is dedusting chamber 21.

Described smoke hatch 9 is at least two, and smoke hatch 9 distributes on the ring-type side.

Dust-proof plate 11 is installed at middle part in described combustion chamber 10, has exhaust smoke hole 12 on described dust-proof plate.Described each exhaust smoke hole 12 evenly distributes on described dust-proof plate.

The outlet flue of described plume dispensing head 13 is communicated with at least two flues 14, and described each flue 14 is communicated with the top of annular smoke flue 16.

The outside is provided with blast pipe 5 below described combustion chamber, and the wall of described fire-resistant frame circle 20 is provided with at least two air intake arms 7, and described air intake arm 7 is communicated with described blast pipe 5.

Described thick dirt expansion chamber 4 comprises exhaust opening, thick dirt locker room, and described thick dirt locker room is provided with gets the dirt door.

After the hot-blast stove of present embodiment was lit a fire, flue gas connected under the suction of smoke suction machine outside, and the flue gas that the combustion chamber produces is by semi-enclosed dedusting combustion chamber cover 6, dust-proof plate 11 dedustings, and thick dirt expansion chamber 4 sedimentations, discharges through exhaust opening 22 then; Cold wind enters cold air duct 17 from cold wind import 1, and the air duct of process plume dispensing head 13 enters hot-flow flue 15, and flow out from hot-blast outlet 18 the heating back.

The two adverse current environmental protection of the utility model, energy-saving hot blast furnace and existing cartridge type, tube group type metal Hot-blast stove compare have that volume is little, the thermal efficiency is high, energy consumption is low, power consumption is low, annular smoke flue not Easily stifled dirt, not over-emitting black exhaust, be beneficial to environmental protection, the dust stratification that cleans flues is convenient and the spy such as long service life The point. The utility model be particularly suitable as be applied to tealeaves, food, medicinal material, timber stoving, The fields such as vegetables, medicine, chemical industry, paper drying, domestic birds and animals heating and warehouse article protection against the tide Metal hot-blast stove.

Claims

1. two adverse current environmental protection energy-saving hot blast furnace, comprise thick dirt expansion chamber, the combustion chamber, heat exchanger and plume dispensing head, described combustion chamber has fire door, described heat exchanger is the multilayered cylindrical structure, heat exchanger is respectively equipped with the hot-flow flue layer from the inside to the outside, annular smoke flue layer and cold air duct layer, described heat exchanger is positioned at the outside, combustion chamber, described plume dispensing head is positioned at the top of combustion chamber, be provided with exhaust gases passes in the described plume dispensing head, air duct, the mouth that advances of described exhaust gases passes is communicated with the top, combustion chamber, the outlet flue of described exhaust gases passes is communicated with the top of described annular smoke flue layer, the air inlet of described air duct is communicated with the top of cold air duct layer, the gas outlet of described air duct is communicated with the top of hot-flow flue layer, the below of described cold air duct layer is the cold wind import, the below of described hot-flow flue layer is provided with hot-blast outlet, and the below of described annular smoke flue layer is provided with exhaust opening, it is characterized in that:

The bottom of described combustion chamber is provided with semi-enclosed dedusting combustion chamber cover, described semi-enclosed dedusting combustion chamber covers on around the top of combustion chamber grate, described semi-enclosed dedusting combustion chamber cover comprises end face, ring-type side, described end face sealing, and described ring-type side has smoke hatch.

2. as claimed in claim 1 pair of adverse current environmental protection energy-saving hot blast furnace is characterized in that: described semi-enclosed dedusting combustion chamber cover bottom is the combustion chamber that fire-resistant frame corral becomes, and the top of described combustion chamber is the dedusting chamber.

3. as claimed in claim 1 pair of adverse current environmental protection energy-saving hot blast furnace is characterized in that: described smoke hatch is at least two, and smoke hatch distributes on the ring-type side.

4. as described pair of adverse current environmental protection of one of claim 1-3 energy-saving hot blast furnace, it is characterized in that: dust-proof plate is installed at the middle part in described combustion chamber, has exhaust smoke hole on described dust-proof plate.

5. as claimed in claim 4 pair of adverse current environmental protection energy-saving hot blast furnace is characterized in that: described each exhaust smoke hole evenly distributes on described dust-proof plate.

6. as claimed in claim 1 pair of adverse current environmental protection energy-saving hot blast furnace is characterized in that: the outlet flue of described plume dispensing head is communicated with at least two flues, and described each flue is communicated with the top of annular smoke flue.

7. as claimed in claim 2 pair of adverse current environmental protection energy-saving hot blast furnace is characterized in that: the outside is provided with blast pipe below described combustion chamber, and the wall of described fire-resistant frame circle is provided with at least two air intake arms, and described air intake arm is communicated with described blast pipe.

8. as claimed in claim 1 pair of adverse current environmental protection energy-saving hot blast furnace is characterized in that: described thick dirt expansion chamber comprises exhaust opening, thick dirt locker room, and described thick dirt locker room is provided with gets the dirt door.