CN2171830Y - Water cooled cupola without furnace liner - Google Patents

Water cooled cupola without furnace liner Download PDF

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Publication number
CN2171830Y
CN2171830Y CN 93231778 CN93231778U CN2171830Y CN 2171830 Y CN2171830 Y CN 2171830Y CN 93231778 CN93231778 CN 93231778 CN 93231778 U CN93231778 U CN 93231778U CN 2171830 Y CN2171830 Y CN 2171830Y
Authority
CN
China
Prior art keywords
furnace
water
air
cupola
heat exchanger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 93231778
Other languages
Chinese (zh)
Inventor
张启坤
于仁先
冯东
于国华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BLAST CUPOLA BRANCH QINGDAO BOILER AUXILIARIES FACTORY
Original Assignee
BLAST CUPOLA BRANCH QINGDAO BOILER AUXILIARIES FACTORY
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BLAST CUPOLA BRANCH QINGDAO BOILER AUXILIARIES FACTORY filed Critical BLAST CUPOLA BRANCH QINGDAO BOILER AUXILIARIES FACTORY
Priority to CN 93231778 priority Critical patent/CN2171830Y/en
Application granted granted Critical
Publication of CN2171830Y publication Critical patent/CN2171830Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a water cooled cupola without furnace liner which is an improvement to a structure of a cupola, comprising two heat exchangers, an air pipe, an air valve and an air box. The lower part of a furnace body is provided with two air outlets, a hearth and a slag divided device. The first air outlet and the second air outlet are respectively communicated with the air box passing through an air regulating valve. The upper part of the furnace body is provided with an upper water tank and a water inlet of the upper water tank along the periphery of the outer wall of the furnace body, and the lower part of the furnace body is provided with a lower water tank and a water outlet of the lower water tank along the periphery of the outer wall of the furnace body. The two air outlets are preheated twice by two heat exchangers, so the thermal efficiency is high. The outer wall of the furnace body adopts water-cooling which ensures the diameter of the hearth. The working condition is stable, and the slag quantity is reduced. A water air outlet can prevent the parametric variation of the air outlet caused by erosion.

Description

Water cooled cupola without furnace liner
The utility model relates to a kind of improvement of water-cooled liningless cupola structure.
Furnace cupola is a kind of equipment of melting molten iron, and furnace charges such as the pig iron, coke and flux are added by the charge door on top, and the molten iron after the melting is flowed in the forehearth standby by tapping hole, and waste gas is discharged through deduster by furnace roof.The thermal efficiency of furnace cupola increases with the rising of ventilation temperature.What general furnace cupola existed is that ventilation temperature is on the low side, and the air feed resistance is bigger, and not only there is above-mentioned shortcoming in the patent application as the CN86207381U of Patent Office's bulletin, and the manufacturing of its encasement tube structure, installation and maintenance difficulty all.The ZL922319766 name of Patent Office's bulletin is called self-heating high temperature air supply cupola furnace patent, mainly form by last heat exchanger, middle heat exchanger, following heat exchanger, body of heater, two exhaust ducts, an exhaust duct etc., because of its two air draft is given heat without following heat exchanger, so two exhaust outlet wind-warm syndrome are low than an exhaust outlet temperature of outgoing air; It is not high always to go into the stove wind-warm syndrome; The furnace wall does not have cooling provision, and the working time is short, and the operating mode instability corrodes greatlyyer during the body of heater blow-on that is built into refractory brick, and general continuous operation is about 10 hours.If the working time is long, easily burn the furnace wall; Melting rate increased with the blow-on time; Because the air port is to make with refractory brick or fire clay, the air port parameter increases with erosion amount and changes, and the air feed instability influences the melting quality.
The utility model purpose is in order to overcome the deficiency in the above-mentioned technology, and a kind of EAT height, water-cooled liningless cupola that the water cooled furnace body operating mode is stable are provided.
The utility model purpose is realized by following technical scheme: this water-cooled liningless cupola, include heat exchanger 5, following heat exchanger 6, the centre has airduct 21 to be communicated with, following heat exchanger 6 is by airduct 22, air-valve 24 is connected with bellows 8, airduct 22 also passes through vent valve 23 to the atmosphere emptying, two exhaust outlets 27 are arranged at the body of heater bottom, 28 and cupola well 11, dregs-separating device 12, one exhaust outlet 27, two exhaust outlets 28 are respectively via adjusting valve 25,26 connect bellows 8, around furnace body outer wall upper water box 7 and water inlet 31 thereof are arranged on body of heater 9 tops, there are lower header and delivery port 29 thereof in the body of heater bottom around furnace body outer wall.
Because the utility model adopts water cooled housing, furnace wall temperature is lower, and the thickness of warding off refractory material in the body of heater is thinner than the furnace cupola of other structures, is 60~120 millimeters.
The utility model adopts water-cooled body of heater 9, around furnace body outer wall, upper water box 7 and water inlet 31 thereof are arranged on body of heater 9 tops, upper water box 7 go to the bottom and the contacted circle of furnace body outer wall has a delivery port 32, lower header 10 tops are drenched the unlimited shape of uncovered of cooling water down for accepting upper water box along furnace body outer wall, and the water in the lower header is discharged by delivery port 29.
The utility model has the advantages that: because the air intake of an exhaust outlet 27 and two exhaust outlets 28 all is to give heat through two heat exchanger secondaries, be the high temperature air feed, improved the thermal efficiency greatly.In air-valve 24 places actual measurements wind-warm syndrome 〉=400 ℃; Owing to adopted the water-cooled body of heater, after lining wear is to about 50 millimeters, no longer continue to corrode, guaranteed the burner hearth internal diameter, operating mode is stable and reduced the quantity of slag, refractory consumption rate and repaiied the stove workload; Owing to adopted water cooled tuyere, can prevent to corrode the air port parameter of bringing and change, make air feed stable, and can strengthen the bed coke burning, avoid air port dross, filling iron, high temperature gas flow to wash away phenomenons such as furnace wall; Owing to set up adjusting valve 25 and 26, can regulate into the stove air quantity, high temperature wind blows outward in the time of can avoiding opening the air port again; One, two exhaust outlets all through following heat exchanger air feed, make the heat exchanger wall temperature drop low, can prolong the life-span of heat exchanger.
Embodiment of accompanying drawings.
Fig. 1 is a water-cooled liningless cupola structural representation,
Fig. 2 is that the water-cooled liningless cupola is installed and used state diagram,
Fig. 3 is the water cooled tuyere schematic diagram,
Fig. 4 is an I enlarged diagram on Fig. 1,
When the water-cooled liningless cupola is installed and used, deduster 1, charge door 2, platform support 3, workbench 4 are arranged above it, following heat exchanger 6 is arranged below the heat exchanger 5 on the water-cooled liningless cupola, also have upper water box 7, bellows 8, body of heater 9, lower header 10, cupola well 11, dregs-separating device 12, supporting leg 13 successively.Air blast enters the inlet of heat exchanger 5, give the air of heat discharges through heat exchanger 5, send into down heat exchanger 6 through airduct 21, send into bellows through the air that gives heat once more through airduct 22, behind air-valve 24 again through adjusting valve 25,26, entering 30, one exhaust outlets 27 and two exhaust outlets 28 in the stove by an exhaust outlet 27, two exhaust outlets 28 respectively has a plurality of uniform radially and insert in the stove water cooled tuyere than the depths.Air is entered in the stove by an exhaust outlet 27, and cooling water is entered in the coolant jacket 35 by water inlet 33, is discharged by discharge outlet 34; Adjusting valve 25 and 26 effect are to regulate the air quantity that first and second exhaust outlet is gone into stove; The function of vent valve 23 and air-valve 24 is: when the temporary transient blowing-out of need or when stopping to melt, close air-valve 24, open vent valve 23, the ventilation cooling heat exchanger is in order to avoid the too high damage heat exchanger of temperature in the stove; The body of heater cooling water enters upper water box 7 by cooling water inlet 31, between upper water box and body of heater shell delivery port 32 is arranged, cooling water is drenched down along the body of heater shell by delivery port 32, enter lower header 10, discharge by drainpipe 29, ward off the refractory material of 100 millimeters thick of having an appointment in the body of heater 9, build refractory brick in the cupola well 11, without water quench.

Claims (3)

1, a kind of water-cooled liningless cupola, include heat exchanger (5), following heat exchanger (6), the centre has airduct (21) to be communicated with, following heat exchanger (6) is by airduct (22), air-valve (24) is connected with bellows (8), airduct (22) also passes through vent valve (23) to the atmosphere emptying, exhaust outlet (27) is arranged at the body of heater bottom, (28) and cupola well (11), dregs-separating device (12), it is characterized in that an exhaust outlet (27), two exhaust outlets (28) are respectively via adjusting valve (25), (26) connect bellows (8), around furnace body outer wall upper water box (7) and water inlet (31) thereof are arranged in upper of furnace body, there are lower header and delivery port (29) thereof in the body of heater bottom around furnace body outer wall.
2, according to the described water-cooled liningless cupola of claim 1, the thickness that it is characterized in that warding off in the body of heater refractory material is 60~120 millimeters.
3, according to the described water-cooled liningless cupola of claim 1, it is characterized in that upper water box (7) go to the bottom and the contacted circle of furnace body outer wall has a delivery port (32), the lower header top is drenched the uncovered open state of cooling water down for accepting upper water box along furnace body outer wall.
CN 93231778 1993-09-03 1993-09-03 Water cooled cupola without furnace liner Expired - Fee Related CN2171830Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 93231778 CN2171830Y (en) 1993-09-03 1993-09-03 Water cooled cupola without furnace liner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 93231778 CN2171830Y (en) 1993-09-03 1993-09-03 Water cooled cupola without furnace liner

Publications (1)

Publication Number Publication Date
CN2171830Y true CN2171830Y (en) 1994-07-13

Family

ID=33808158

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 93231778 Expired - Fee Related CN2171830Y (en) 1993-09-03 1993-09-03 Water cooled cupola without furnace liner

Country Status (1)

Country Link
CN (1) CN2171830Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101979942A (en) * 2010-10-23 2011-02-23 郴州市国大有色金属冶炼有限公司 One-step lead smelting blast furnace
CN102297591A (en) * 2011-07-19 2011-12-28 青岛福润祥熔炼设备制造有限公司 High-temperature energy-saving hot air smelting furnace
CN110160367A (en) * 2019-07-02 2019-08-23 贵州省息烽县长宏铸造有限公司 A kind of three sections of continuous recovery methods of cupola furnace waste heat from tail gas

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101979942A (en) * 2010-10-23 2011-02-23 郴州市国大有色金属冶炼有限公司 One-step lead smelting blast furnace
CN102297591A (en) * 2011-07-19 2011-12-28 青岛福润祥熔炼设备制造有限公司 High-temperature energy-saving hot air smelting furnace
CN110160367A (en) * 2019-07-02 2019-08-23 贵州省息烽县长宏铸造有限公司 A kind of three sections of continuous recovery methods of cupola furnace waste heat from tail gas

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee
C19 Lapse of patent right due to non-payment of the annual fee