CN210398967U - Novel four-element hot blast stove - Google Patents

Abstract

The utility model discloses a novel quaternary body hot-blast stove belongs to hot-blast furnace technical field, including the furnace body, set up in the furnace body furnace chamber, set up in one side of furnace body and with the waste gas import of furnace chamber intercommunication, be close to the inlet compensating portion of waste gas import one side setting on the furnace body, set up at the top of furnace body and with the air intake of furnace chamber intercommunication, set up one side of keeping away from waste gas import at the furnace body and with the air outlet of furnace chamber intercommunication, install combustor, heat exchanger, access door and filter in the furnace chamber, combustor, heat exchanger, access door and filter are installed in proper order in the direction from the directional air outlet of waste gas import, waste gas import communicates with the air inlet end of combustor, and the heat exchanger is linked together through the air duct with the end of giving vent to anger. The utility model provides a current hot-blast furnace can not carry out the not high problem of heat exchange efficiency that the heat transfer leads to again to waste gas, have simple structure and use the characteristics of environmental protection.

Description

Novel four-element hot blast stove

Technical Field

The utility model relates to a hot-blast furnace technical field especially relates to a novel quaternary hot-blast stove.

Background

The hot blast stove indirectly exchanges heat through a heat source, and circulating air is filtered and sent into a drying channel to heat a workpiece; the hot blast stove in the prior art is split, the heat exchanger, the filter, the fan and the split type are combined together, hot air in the hot blast stove is easily polluted, the heat efficiency is low, equipment occupies a large area, and the hot blast stove is not beneficial to the arrangement of a factory building. To above-mentioned problem, utility model patent of publication No. CN202219232U discloses a quaternary hot-blast stove, and this hot-blast stove equipment is small, succinct pleasing to the eye, and the air filters impurity through the filter after passing through the heat exchanger heating, and pure hot-air gets into the drying tunnel from the air outlet, has improved the thermal efficiency, and has reduced the shared space of equipment, has improved the utilization ratio of factory building. However, the following problems still exist in the use of the patent: the temperature of the exhaust gas to be exhausted is not detected, and the requirement on the exhaust temperature may not meet the standard due to the fault of the heat exchanger, so a novel quaternary hot air furnace needs to be designed urgently.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is to solve the shortcoming that exists among the prior art, if: the existing four-element hot blast stove does not detect the gas to be discharged, so that heat waste is easy to occur, the waste gas discharge is not up to the standard, and the environment is affected.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a novel quaternary hot air furnace comprises a furnace body, a furnace chamber arranged in the furnace body, a waste gas inlet arranged at one side of the furnace body and communicated with the furnace chamber, an air supplementing opening arranged at one side close to the waste gas inlet on the furnace body, an air inlet arranged at the top of the furnace body and communicated with the furnace chamber, an air outlet arranged at one side of the furnace body far away from the waste gas inlet and communicated with the furnace chamber, a burner, a heat exchanger, an access door and a filter which are arranged in the furnace chamber, wherein the burner, the heat exchanger, the access door and the filter are sequentially arranged in the direction pointing to the air outlet from the waste gas inlet, the waste gas inlet is communicated with the air inlet end of the burner, the heat exchanger is communicated with the air outlet end of the burner through an air guide tube, an electromagnetic valve is arranged on the air outlet, a temperature sensor is arranged at one side close to the, and a waste gas reflux structure is arranged on the furnace body and is used for realizing heat exchange of high-temperature waste gas again.

Preferably, the waste gas backflow structure comprises an air pump, the air pump is fixedly mounted at the top of the furnace body, an air inlet pipe of the air pump extends to one side, close to the air outlet, of the furnace cavity, and an air outlet pipe of the air pump extends to one side, close to the heat exchanger, of the furnace cavity and is communicated with the air guide pipe.

Preferably, install one-way pneumatic valve on the air duct, the hookup location of the outlet duct of air pump is located one side that one-way pneumatic valve keeps away from the combustor, be equipped with two installing ports on the furnace body, the intake pipe and the outlet duct of air pump all extend to the furnace chamber through the installing port, every the sealing washer is all installed to the position of installing port, the one end fixed mounting that the intake pipe of air pump is located the furnace chamber has the gas collecting channel, the gas collecting channel is the round platform body structure, the vertical opening of seting up the inside intercommunication of intake pipe that runs through on the gas collecting channel, solenoid valve and temperature sensor electric connection, the air pump also with temperature sensor electric connection.

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

1. the utility model discloses a combustor fully burns the interior waste gas of waste gas inlet, and the gas is seen off from the air outlet after burning to carry out the heat transfer of heat exchanger and the purification filtration of filter, and temperature sensor can detect the temperature of seeing off the gas, and when the temperature is higher than the emission standard, can control the solenoid valve and close, avoids the environmental problem and the wasting of resources problem that high temperature waste gas direct discharge probably leads to;

2. the utility model discloses a cooperation of solenoid valve, temperature sensor and air pump has realized the secondary treatment to high temperature waste gas in the furnace chamber, send waste gas to the air duct again through the air pump in, avoid gas reflux to the combustor in through one-way pneumatic valve, the waste gas that sends back air outlet department through the heat transfer of heat exchanger and the purification filtration of filter once more to the heat exchange efficiency of waste gas has been promoted, is favorable to resources are saved.

Drawings

Fig. 1 is a schematic structural view of a novel four-element hot blast stove provided by the present invention;

fig. 2 is an enlarged view of a structure of fig. 1.

In the figure: the device comprises a furnace body 1, a furnace chamber 2, a waste gas inlet 3, a burner 4, a heat exchanger 5, an access door 6, a filter 7, an air pump 8, a sealing ring 9, an air inlet 10, an air supplement port 11, a one-way air valve 12, an air outlet 13, an electromagnetic valve 14, a temperature sensor 15 and a gas collecting hood 16.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-2, a novel quaternary hot air furnace comprises a furnace body 1, a furnace chamber 2 arranged in the furnace body 1, a waste gas inlet 3 arranged at one side of the furnace body 1 and communicated with the furnace chamber 2, an air supplement port 11 arranged on the furnace body 1 near one side of the waste gas inlet 3, an air inlet 10 arranged at the top of the furnace body 1 and communicated with the furnace chamber 2, an air outlet 13 arranged at one side of the furnace body 1 far away from the waste gas inlet 3 and communicated with the furnace chamber 2, a burner 4 arranged in the furnace chamber 2, a heat exchanger 5, an access door 6 and a filter 7, wherein the burner 4, the heat exchanger 5, the access door 6 and the filter 7 are sequentially arranged in a direction pointing to the air outlet 13 from the waste gas inlet 3, the waste gas inlet 3 is communicated with the air inlet end of the burner 4, the heat exchanger 5 is communicated with the air outlet end of the burner 4 through an air duct, a temperature sensor 15 is installed at one side, close to the air outlet 13, of the top of the furnace body 1, the detection end of the temperature sensor 15 is located in the furnace chamber 2, and a waste gas backflow structure is installed on the furnace body 1 and used for achieving heat exchange of high-temperature waste gas again. It should be noted that, the waste gas in the waste gas inlet 3 is fully combusted through the combustor 4, the combusted gas is subjected to heat exchange of the heat exchanger 5 and purification and filtration of the filter 7 and is sent out from the air outlet 13, the temperature sensor 15 can detect the temperature of the sent gas, when the temperature is higher than the emission standard, the electromagnetic valve 14 can be controlled to be closed, so that the environmental problem and the resource waste problem which are possibly caused by direct emission of the high-temperature waste gas are avoided, the high-temperature waste gas is sent back to the heat exchanger 5 through the waste gas backflow structure for heat exchange again, and the heat utilization efficiency is improved; the waste gas backflow structure comprises an air pump 8, the air pump 8 is fixedly arranged at the top of the furnace body 1, an air inlet pipe of the air pump 8 extends to one side, close to the air outlet 13, in the furnace chamber 2, and an air outlet pipe of the air pump 8 extends to one side, close to the heat exchanger 5, in the furnace chamber 2 and is communicated with the air guide pipe; it should be noted that, through the cooperation of the electromagnetic valve 14, the temperature sensor 15 and the air pump 8, the secondary treatment of the high-temperature waste gas in the furnace chamber 2 is realized, the waste gas is sent into the air guide tube again through the air pump 8, the gas is prevented from flowing back into the burner 4 through the one-way air valve 12, and the returned waste gas is sent back to the air outlet 13 through the heat exchange of the heat exchanger 5 and the purification and filtration of the filter 7 again, so that the heat exchange efficiency of the waste gas is improved, and the resource saving is facilitated; the air duct is provided with a one-way air valve 12, and the connecting position of the air outlet pipe of the air pump 8 is positioned at one side of the one-way air valve 12 far away from the burner 4; it should be noted that the waste gas is sent to the gas duct again by the gas pump 8, and the gas is prevented from flowing back to the combustor 4 by the one-way gas valve 12; the furnace body 1 is provided with two mounting ports, an air inlet pipe and an air outlet pipe of the air pump 8 extend into the furnace chamber 2 through the mounting ports, and a sealing ring 9 is arranged at each mounting port; it should be noted that the sealing at the mounting opening is realized by the two sealing rings 9, so that the environmental problem caused by waste gas leakage is avoided;

wherein, one end of the air inlet pipe of the air pump 8 positioned in the furnace chamber 2 is fixedly provided with a gas collecting hood 16, the gas collecting hood 16 is of a circular truncated cone structure, and the gas collecting hood 16 is vertically penetrated with an opening communicated with the inside of the air inlet pipe; it should be noted that the inner diameter of the bottom of the opening is larger than that of the top, which is beneficial to improving the air extraction efficiency of the air pump 8;

the electromagnetic valve 14 is electrically connected with the temperature sensor 15, and the air pump 8 is also electrically connected with the temperature sensor 15; it should be noted that, the opening and closing of the electromagnetic valve 14 is controlled by the temperature sensor 15, which has the characteristic of high automation degree, once the temperature of the exhaust gas is higher than the emission standard, the temperature sensor 15 transmits an electric signal to control the closing of the electromagnetic valve 14, meanwhile, the air pump 8 is started to re-pump the exhaust gas near the air outlet 13 in the furnace chamber 2 back into the air duct, and the exhaust gas is again subjected to heat exchange by the heat exchanger 5, so that the utilization efficiency of heat is ensured, and the environmental pollution is avoided.

Claims (3)

1. A novel quaternary hot air furnace comprises a furnace body (1), a furnace chamber (2) arranged in the furnace body (1), a waste gas inlet (3) arranged at one side of the furnace body (1) and communicated with the furnace chamber (2), an air supplementing opening (11) arranged on the furnace body (1) and close to one side of the waste gas inlet (3), an air inlet (10) arranged at the top of the furnace body (1) and communicated with the furnace chamber (2), an air outlet (13) arranged at one side of the furnace body (1) far away from the waste gas inlet (3) and communicated with the furnace chamber (2), a burner (4) arranged in the furnace chamber (2), a heat exchanger (5), an access door (6) and a filter (7), wherein the burner (4), the heat exchanger (5), the access door (6) and the filter (7) are sequentially arranged in the direction from the waste gas inlet (3) to the air outlet (13), and the waste gas inlet (3) is communicated with the air inlet end of the burner (4), the heat exchanger (5) is linked together through the air duct with the end of giving vent to anger of combustor (4), its characterized in that, install solenoid valve (14) on air outlet (13), one side that the top of furnace body (1) is close to air outlet (13) installs temperature sensor (15), the sense terminal of temperature sensor (15) is located furnace chamber (2), install waste gas backflow structure on furnace body (1) and be used for realizing the heat transfer again of high temperature waste gas.

2. The novel quaternary hot blast stove according to claim 1, characterized in that the exhaust gas recirculation structure comprises an air pump (8), the air pump (8) is fixedly installed on the top of the stove body (1), an air inlet pipe of the air pump (8) extends to one side of the stove chamber (2) close to the air outlet (13), and an air outlet pipe of the air pump (8) extends to one side of the stove chamber (2) close to the heat exchanger (5) and is communicated with the air guide pipe.

3. The new quaternary hot blast stove according to claim 2, characterized in that the air duct is equipped with a one-way air valve (12), the connecting position of the air outlet pipe of the air pump (8) is positioned at one side of the one-way air valve (12) far away from the burner (4), the furnace body (1) is provided with two mounting ports, an air inlet pipe and an air outlet pipe of the air pump (8) extend into the furnace chamber (2) through the mounting ports, a sealing ring (9) is arranged at the position of each mounting port, one end of the air inlet pipe of the air pump (8) positioned in the furnace chamber (2) is fixedly provided with a gas collecting hood (16), the gas-collecting hood (16) is of a round table body structure, an opening communicated with the inside of the gas inlet pipe is vertically arranged on the gas-collecting hood (16) in a penetrating way, the electromagnetic valve (14) is electrically connected with the temperature sensor (15), and the air pump (8) is also electrically connected with the temperature sensor (15).

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