CN2893591Y - Combustion chamber and combined hot-blast furnace with burning resisting device, multistage heat-exchanging and dust-removing - Google Patents
Combustion chamber and combined hot-blast furnace with burning resisting device, multistage heat-exchanging and dust-removing Download PDFInfo
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- CN2893591Y CN2893591Y CN 200620094909 CN200620094909U CN2893591Y CN 2893591 Y CN2893591 Y CN 2893591Y CN 200620094909 CN200620094909 CN 200620094909 CN 200620094909 U CN200620094909 U CN 200620094909U CN 2893591 Y CN2893591 Y CN 2893591Y
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Abstract
The utility model provides a firebox and a combination-type hot-air furnace which has a burning-endurable device and is provided with multi-level heat-exchanging and dust-removing functions. The utility model comprises a firebox and a heat-exchanger assembly. A multi-level heat-exchanging is flatly arranged in the heat-exchanger assembly and pipes in the heat-exchanger are arranged vertically in a line. The burning-endurable device is arranged on the pipes face of the upper-end of the first heat-exchanger and a safety brake is arranged at the front of the heat-exchanger assembly. The hot-air furnace is energy-saving, safe, durable, environment protective, and can save the coal (energy) by 65% than the steam boiler and save the coal (energy) by 30% than the heat-transfer oil furnace, simultaneously the furnace is a device which has a low running and maintaining cost and bears a high-speed capability to raise temperature and to stop running, and is a device which can be better managed in an emergency and controlled automatically. The furnace size can be designed according to the requirements of users and the temperature of furnace can be adjusted in a range between 100 degrees centigrade and 350 degrees centigrade. The hot-air recycling-rate is between 85% and 95% and the energy-economy effect is distinct.
Description
Technical field
The utility model relates to a kind of hot-blast furnace equipment, especially a kind of suitable to dry with hot blast various products, with the supporting hot-blast stove of multiple drying plant.
Background technology
In the various industrial and agricultural productions, be mostly steam boiler and heat conducting oil boiler, by the radiator indirect heat exchange, hot blast is provided so long as carry out dry employed hot blast main source with hot blast.This indirect heat exchange boiler efficiency is low, complicated, technical security content height.Another is energy-conservation, be exactly with combustion gas, coal, scoot etc. easily, directly burning in the heat exchange body, air changes the warm-air supply drying plant into and uses in heat pipe.The long-term use of safety that how to guarantee this calandria (stove) is the previous the most key technical big problem of order, pipe outer makes a fire simultaneously, intraductal heat exchange wind all is unscientific, strengthen management howsoever and keep the safety in production, all be pain in the neck feelings the most, mainly be not durable, leak cigarette, leak fire, the life-span is not long.
Summary of the invention
The purpose of this utility model provides a kind of from designing and producing the safety that has guaranteed heat exchanger, thermal loss is little, dust removing effects is remarkable, it is again multistage dedusting simultaneously that multi-stage heat exchanger is arranged, and the rate of recovery of hot blast is 85%～95%, energy-conservation, practical combined hot-blast stove.
Technical solution adopted in the utility model is:
Form by combustion chamber and heat exchanger assembly.Be horizontally disposed with multi-stage heat exchanger in the heat exchanger assembly, the tubulation in the heat exchanger is arranged vertically downward, is provided with the wear-resistant device of anti-the burning on tubulation plane, first heat exchanger upper end, at heat exchanger assembly front end safety gate is set.
The described wear-resistant device of anti-the burning is that stuffy place is filled and led up with the insulation baking proof material at the tube head of one section same diameter of each mouth of pipe place spot welding of heat exchanger tube air inlet.Safety gate is square three interlock gates, and flashboard is arranged on main air duct, the connecting rod of ining succession on the flashboard, and two pull bars are adorned at connecting rod top dress jacking equipment, middle part, and pull bar one headband has two interlock doors.This heat exchanger assembly is made up of secondary or multi-stage heat exchanger.
Specifically, exactly the hot-blast stove of existing disjunctor hot-blast stove and directly burning type has been carried out many-sided improvement:
(1) combustion chamber and heat exchanger are separated, the combustion chamber is the high heat insulation effect that the performance requirement of based on fuel is manufactured, can air blast be arranged clean-burning combustion chamber (burner), Fig. 1 is seen in blast pipe, fire grate fire door, slag-drip opening, heavy grey dedusting mouth, high-temperature flue gas outlet.
(2) the heat exchanger assembly is made up of secondary or multi-stage heat-exchanger, high-temperature flue gas import, heat exchanger, security exhaust door, shutter, dedusting ash-draining gate, cold wind air inlet (being provided with air blast), hot blast flue dust air inducing outlet (outlet is provided with water dedusting and air-introduced machine), exchange hot-blast outlet and safety gate are arranged, see Fig. 1.
(3) the heat exchanger first order also is that the high temperature interchanger has burning-resistant device, has guaranteed the service life of interchanger.
(4) interchanger tubulations at different levels are arranged verticals, utilize whirlwind sedimentation principle to reclaim dust automatically, have formed multistage dust removing effects.
(5) heat exchangers at different levels are provided with shutter and go out air door at the high-temperature flue gas passage, under urgent situation, open air door, guarantee not hyperthermia and superheating of heat exchanger, accomplish safe and reliable.
(6) air blast is equipped with in the import of heat exchanger assembly cold air, and the hot blast air outlet is equipped with safety gate, as long as dry when not wanting hot blast, closes the tail gates hot blast and discharges, and cold wind enters oven dry simultaneously.
(7) main is that heat exchange mode has changed, and is the new method of logical high-temperature flue gas, heat transfer outside a tube in the pipe, and heat exchanger can be made with stainless steel material and high temperature resistant steel and two kinds of materials of tubing.
Through trying out in tapioca factory, act as a fuel with coal, steam oven, hot-blast stove, the employed coal of heat-conducting oil furnace all are the coals with a kind of caloric value, the starch of oven dry is under same temperature, employed dryer also is with the same negative pressure one-level drying plant, briefly, is exactly that experimental condition is the same, the effect of using is different, as shown in the table.
Advantage and good effect thereof:
The utility model hot-blast stove is energy-conservation, safe, durable, environmental protection, than steam boiler (energy) 65% of economizing on coal, than heat-conducting oil furnace (energy) 30% of economizing on coal, simultaneously it still is that a kind of operation expense is low, intensification, blowing out be the fastest, in emergency circumstances preferably handle, control simple equipment automatically, can design the hot-blast stove of all size specification according to customer requirements, the temperature adjustable extent of hot-blast stove is between 100 ℃～350 ℃, the rate of recovery of hot blast is 85～95%, and energy-saving effect is remarkable.
Description of drawings
Fig. 1 is the utility model hot-blast stove structural representation.
Fig. 2 is the front view of Fig. 1 Combustion of Hot Air Furnace chamber.
Fig. 3 is the cutaway view of Fig. 1 combustion chamber.
Fig. 4 is Fig. 1 heat exchanger assembly front view.
Fig. 5 is Fig. 1 heat exchanger assembly cutaway view.
Fig. 6 is a hot-blast outlet safety gate structural representation.
Indicate among the figure: combustion chamber 1, heat exchanger assembly 2, air blast 3, hot-blast outlet 4, safety gate 5, cold wind import 6, big air blast 7, clean room 8, dedusting and air inducing 9, ash gate 10, fire door 11, combustion chamber Steel bar rack 12, heavy grey chamber ash-draining gate 13, combustion chamber blast pipe 14, burner hearth 15, fire grate 16, high-temperature flue gas outlet portal 117, heavy grey chamber 18, first heat exchanger 19, high-temperature flue gas exhaust door 20, second heat exchanger 21, exhaust gases passes shutter 22, exhaust gases passes goes out air door 23, the 3rd heat exchanger 24, the 4th heat exchanger 25, exhaust gases passes shutter 26, primary dust removing mouth and barricade 27, two-stage dust removal mouth and barricade 28, the first heat exchanger burning-resistant device 29, heat exchanger assembly and insulated wall 30, become windscreen wall 31 on the 3rd heat exchanger, flue dust tail wind outlet 32, safety gate device: flashboard 33, interactive Door lock with linakage locking bar 34, connecting rod 35, power set 36, pull bar 37, fixed support 38.
The specific embodiment
Hot-blast stove is made up of the two large divisions: first is combustion chamber (burner), the combustion chamber is according to the fuel that is provided, at the combustion chamber that is made into high insulation, this part is fuel combustion to be become high-temperature flue gas (500 ℃～1000 ℃) supply with second portion heat exchanger assembly.Second portion heat exchanger assembly is that the high-temperature flue gas that will burn converts 150 ℃～350 ℃ hot blasts to by heat exchange, can directly dry with the mixing of materials and the displacement of oven dry.The flue gas that lead to high-temperature flue gas in this heat exchanger process innovating reform, tubulation heat exchange, the pipe, burning-resistant device is arranged, physical life is long, multistage dedusting, smoke evacuation is arranged needs only simple process and reaches emission request fully; a plurality of safe ventilation doors are arranged; guarantee the safety of heat exchanger during power failure; after the displacement; tail cigarette Controllable Temperature has guaranteed energy-conservation effect built in below 80 ℃.
Combustion chamber 1 is the burner hearth that produces high-temperature flue gas, the front have the fire door 11 that feeds intake, burner hearth 15, in have fire grate 16, fire grate downside back to have air blast 3 and combustion chamber blast pipe 14, front that ash gate 10, heavy grey chamber 18, high-temperature flue gas outlet 17 are arranged.See Fig. 3.
Heat exchanger assembly 2 is by four heat exchangers 19; 21; 24; 25 form; horizontal linear is placed; the tubulation arranged vertical; hot-blast outlet 4 and safety gate 5 are arranged before first heat exchanger; afterbody has cold wind import 6 and big air blast 7; clean room 8; hot flue gas enters first heat exchanger 19 from 17 outlets of high-temperature flue gas outlet portal; be provided with burning-resistant device 29 on tubulation plane, first heat exchanger upper end; see Fig. 5; the shoe of anti-the burning is the tube head in one section same diameter of each mouth of pipe place spot welding of heat exchanger tube air inlet; above stuffy place fill and lead up with the insulation baking proof material; just formed the protective device of a special use; this device can repeat after impaired to change and the not burning heat exchanger tube also is provided with a hot flue gas ejection door 20 and barricade simultaneously.There is the elevated temperature heat exhaust gases passes to go out air door 23 at the second heat exchanger downside elevated temperature heat exhaust gases passes shutter 22, upside, also have a flue gas shutter 26 at the 4th heat exchanger downside flue place, the second, the 4th shutter downside is provided with primary dust removing mouth and barricade, two-stage dust removal mouth and barricade 27,28, also be provided with simultaneously the twice windbreak, the 3rd heat exchanger also has change windscreen wall 31 one to upside, is mainly used to change hot flue gas direction.Insulated wall 30 protections are all carried out except that being welded into steel plate the casing of full envelope in heat exchanger assembly periphery.
Safety gate 5 is three interlock gates of a square, at main air duct flashboard 33 is arranged, the flashboard upper end connecting rod 35 of ining succession, power set 36 are equipped with on connecting rod top, two pull bars 37 are equipped with at the connecting rod middle part, pull bar one headband has two interactive Door lock with linakage locking bar 34, and the linkage of emergency lock is interactive Door lock with linakage locking bar 34, connecting rod 35, power set 36, pull bar 37 is fixed on the fixed support 38 and warm-air pipe outlet oven dry pipe two ends.
Operation principle:
1., fuel (coal) is lighted in combustion chamber 1 after, sufficient oxygen is arranged under the effect of air blast and air inducing, guaranteed the completing combustion of fuel in burner hearth 15, produced enough high-temperature flue gas, through heavy grey chamber 18, by high-temperature flue gas outlet portal 17, enter the heat exchanger assembly.In this process, the hot blast temperature that can provide according to oven dry is again through the fire door coal, close down with air inducing and adjust required temperature (automatically and manually), in normal operation, air blast can, thereby guaranteed the supply of high-temperature flue gas.
2., heat exchanger assembly 2 is that the high-temperature flue gas that the combustion chamber provides is changed into the used hot blast of drying plant that designs, transfer process is finished in two sub-sections: the course of work of high-temperature flue gas and hot blast conversion work process.
A. high-temperature flue gas enters the first heat exchanger upper inlet through high-temperature flue gas outlet portal 17; burning-resistant device 29 is equipped with at 19 upper inlet places at first heat exchanger; the highest temperature flue gas that is used for protecting heat exchanger to begin does not directly burn the weld of heat exchanger plain furnaces pipe and high temperature plate; and can not produce damage; have only first heat exchanger to be subjected to the influence of the highest temperature; other grades are all lowered the temperature in the process of heat exchange, and can not damage.The (see figure 5) flue gas is according to designing the route walking; walk downwards through first heat exchanger; laterally enter the second heat exchanger lower flue and be subjected to the barricade effect; this moment, flue dust fell into primary dust removing device and barricade 27 places; high-temperature flue gas returns upwards walking; laterally be subjected to the 3rd heat exchanger barricade effect again; return downward walking; through the upwards walking of the 4th heat exchanger downside; flue dust falls into secondary ash collector and barricade 28 places again, is exported 32 suction dedusters and air-introduced machine is discharged in the air by air-introduced machine through flue dust tail wind at last, and a plurality of safe inlet/outlets and dedusting mouth are arranged in the lower channel on flue; guaranteed that flue gas in case of emergency can reduce channel temperature by advancing emptying gas, protection heat exchanger safety.The supply of high-temperature flue gas is that to act in the whole flue through air inducing be negative pressure work, and does not lose heat energy.
B. the conversion of hot blast: be that the heat exchange mode natural air that designs by Fig. 5 in the heat exchanger assembly enters heat exchanger assembly air inlet through clean air compartment 8 under big air blast 7 air blast, from the 4th heat exchanger 25 to first heat exchanger, 19 direction straight line bottom horizontal flow sheet, be subjected in the front multi-stage heat exchanger vertically the heat exchanger tube of product word arrangement stop, air is through the friction of each tubulation, carried out heat exchange, cold air is by cold heating, finish the hot blast conversion that designs, about the tubulation, both sides all are the hot blast heat exchanger channels by steel plate welding formation sealing, guaranteeing heat exchange, is positive pressure air in this passage, outwards exhaust, not having flue gas enters, so hot gas is environmental protection, safety, hot blast enters safety gate control through outlet, can provide hot blast to drying system fully when oven dry.Emergency lock can be controlled automatically and manually, when opening a sluice gate plate to the oven dry hot wind supply, two upper side cover can be closed down simultaneously, are dried the effect of air inducing, in the convection current in a basic balance of emergency lock place positive and negative pressure air quantity.Work as emergency, close upper flashboard, two upper side cover are driven by connecting rod, open automatically, and hot blast is discharged in the air, and cold wind enters in the drying system.
At whole hot-blast stove, the total Chengdu of combustion chamber and heat exchanger requires to be incubated with the high-quality insulation material, is effective well, and the combustion chamber high temperature flue gas all is that the thermal source of working under negative pressure does not run off.And hot blast is in basic direct draught work; can not advance dust; shutting down or in emergency circumstances; open all safety-valves, see Fig. 4, coal fire cleaning in the combustion chamber; the hot blast safety gate is closed down and opens exhaust gases passes air-out and shutter; heat exchanger just can not burn out, and the safety of this hot-blast stove has been subjected to protection, has accomplished that safety provides the cleaning hot blast.By multistage heat-exchange dedusting, add the environment protection emission flue gas quality that the water mill dedusting has guaranteed hot-blast stove.
Claims (4)
- But 1, a kind of combustion chamber and the hot-air furnace combined of burning-resistant device, multi-stage heat exchanger dedusting arranged, comprise combustion chamber and heat exchanger assembly, it is characterized in that: be horizontally disposed with multi-stage heat exchanger (19), (21), (24), (25) in the heat exchanger assembly (2), tubulation in the heat exchanger is arranged vertically downward, be provided with the wear-resistant device of anti-burning the (20) on tubulation plane, first heat exchanger (19) upper end, safety gate (5) be set at heat exchanger assembly (2) front end.
- 2, according to claim 1 hot-air furnace combined, it is characterized in that: the described wear-resistant device of anti-burning the (20) is that stuffy place is filled and led up with the insulation baking proof material at the tube head of one section same diameter of each mouth of pipe place spot welding of heat exchanger tube air inlet.
- 3, according to claim 1 hot-air furnace combined, it is characterized in that: safety gate (5) is square three interlock gates, flashboard (34) is arranged on main air duct, the flashboard upper end connecting rod (37) of ining succession, two pull bars (35) are adorned at connecting rod (37) top dress jacking equipment (36), middle part, and pull bar one headband has two interlock doors (34).
- 4, according to claim 1 hot-air furnace combined, it is characterized in that: this heat exchanger assembly (2) is made up of secondary or multi-stage heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620094909 CN2893591Y (en) | 2006-01-05 | 2006-01-05 | Combustion chamber and combined hot-blast furnace with burning resisting device, multistage heat-exchanging and dust-removing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620094909 CN2893591Y (en) | 2006-01-05 | 2006-01-05 | Combustion chamber and combined hot-blast furnace with burning resisting device, multistage heat-exchanging and dust-removing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2893591Y true CN2893591Y (en) | 2007-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620094909 Expired - Fee Related CN2893591Y (en) | 2006-01-05 | 2006-01-05 | Combustion chamber and combined hot-blast furnace with burning resisting device, multistage heat-exchanging and dust-removing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2893591Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726840A (en) * | 2017-11-27 | 2018-02-23 | 焦作市真节能环保设备科技有限公司 | Dryer and the emergent heat release of air-heater connectivity part |
| CN109028902A (en) * | 2018-08-28 | 2018-12-18 | 河南省德耀节能科技股份有限公司 | One kind is wet, glues class drying materials system and its drying equipment |
-
2006
- 2006-01-05 CN CN 200620094909 patent/CN2893591Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726840A (en) * | 2017-11-27 | 2018-02-23 | 焦作市真节能环保设备科技有限公司 | Dryer and the emergent heat release of air-heater connectivity part |
| CN109028902A (en) * | 2018-08-28 | 2018-12-18 | 河南省德耀节能科技股份有限公司 | One kind is wet, glues class drying materials system and its drying equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070425 |