CN206812308U - A kind of direct-fired energy-saving type curing furnace - Google Patents

A kind of direct-fired energy-saving type curing furnace Download PDF

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Publication number
CN206812308U
CN206812308U CN201720336400.9U CN201720336400U CN206812308U CN 206812308 U CN206812308 U CN 206812308U CN 201720336400 U CN201720336400 U CN 201720336400U CN 206812308 U CN206812308 U CN 206812308U
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China
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air
workpiece
heat room
furnace body
combustion chamber
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Expired - Fee Related
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CN201720336400.9U
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Chinese (zh)
Inventor
李建筠
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Nanjing Canaan Furnace Industry Co Ltd
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Nanjing Canaan Furnace Industry Co Ltd
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Priority to CN201720336400.9U priority Critical patent/CN206812308U/en
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Abstract

The utility model discloses a kind of direct-fired energy-saving type curing furnace, including solidifying furnace body, inner bag is provided with the solidification furnace body, hot-air channel is formed between solidification furnace body and inner bag, cavity in inner bag is divided into combustion chamber and workpiece heat room two parts by return air plate, and combustion chamber is located at the top of workpiece heat room.When carrying out curing process to workpiece, fuel gas transmission is burnt to fuel burner nozzle, caused high-temperature flue gas passes through the top for accelerating into hot-air channel of circulating fan after burning, and blown along the downward convection type of hot-air channel, wind enters workpiece heat room from both sides and bottom, convection current air channel is provided with workpiece heat room, makes the temperature inside the box more uniform, ensures that workpiece is heated properly.Under the draft effect of circulating fan, from workpiece heat room bottom to top suction type exhausting, hot blast enters combustion chamber by the long through-hole in return air plate center, and the flue gas after workpiece exchanges heat is heated again, forms hot air circulation, saves gas energy.

Description

A kind of direct-fired energy-saving type curing furnace
Technical field
It the utility model is related to a kind of direct-fired energy-saving type curing furnace.
Background technology
Existing curing furnace is mostly electrical heating form, and the type of furnace using heated by natural gas is more than in energy consumption, and existing Some curing furnace heat utilization rates are low, poor temperature uniformity, while stove inner exhaust gas is dealt with improperly, pollute environment.
The content of the invention
The purpose of this utility model is to provide a kind of direct-fired energy-saving type curing furnace solve to solidify in the prior art In-furnace temperature is uneven, and heat utilization rate is low, while stove inner exhaust gas is dealt with improperly, pollutes the technical problem of environment.
In order to solve the above-mentioned technical problem the utility model, adopts the following technical scheme that:
A kind of direct-fired energy-saving type curing furnace, including solidification furnace body, described solidify in furnace body are provided with inner bag, Solidify and hot-air channel is formed between furnace body and inner bag, the cavity in inner bag is divided into combustion chamber and workpiece heat room by return air plate Two parts, combustion chamber are located at the top of workpiece heat room;Workpiece heat room side wall is made up of multigroup orifice-plate type grid, workpiece The bottom of heating chamber is welded into grid with channel-section steel, and grid is provided with the steel grating plate of carrying workpiece;The side wall of the solidification furnace body Embedded with two fuel burner nozzles, the bocca of fuel burner nozzle is located in combustion chamber, and each bocca outer cover is provided with fire insulation cylinder, fire insulation Cylinder is fixed in a combustion chamber, and multiple through holes are offered on fire insulation cylinder;Return air plate center offers long through-hole, and long through-hole is located at two Between projection of the fire insulation cylinder on return air plate, the V-arrangement baffle for being in longitudinal cross-section, V-arrangement baffle position are provided with combustion chamber In the surface of long through-hole, the hot gas come out from long through-hole is divided into the combustion gas for flowing to both sides after two halves respectively by V-arrangement baffle Burner;Two circulating fans, multiple cold wind air intake passages and waste gas discharge blower fan, circulated air are provided with the solidification furnace body The air inlet and combustion chamber of machine, the air outlet of circulating fan are located at the top of hot-air channel;The air-out of cold wind air intake passage Mouth and combustion chamber, the air inlet and atmosphere of cold wind air intake passage, and the air inlet of cold wind air intake passage is provided with Electric air valve;The air inlet of waste gas discharge blower fan connects with workpiece heat room, and waste gas discharges the air outlet and exhaust-gas treatment of blower fan System connectivity, exhaust treatment system are generally user and provided for oneself, are prior art;Waste gas discharges blower fan and set with Electric air valve linkage Put;Electric up-down fire door is provided with the solidification furnace body side wall.
When carrying out curing process to workpiece, fire door is opened by electrical hoist, put the workpiece in part heating chamber, then Fire door is closed, by ramp type weight compression fire door, while fire door surrounding is provided with sealing strip, it is ensured that the sealing after fire door closing Property.Then burnt to by fuel gas transmission to fuel burner nozzle, caused hot blast is entered by the through hole on fire insulation cylinder after burning In heating chamber, then by circulating fan the top of hot-air channel is accelerated into, because circulating fan is provided with, and air outlet court To both sides, so the hot blast come out by circulating fan is blown to both sides, and blown along the downward convection type of hot-air channel, then A part of hot blast heats through workpiece heat room side wall orifice-plate type grid into workpiece heat room to workpiece, another part heat Wind heats by the grid of workpiece heat room bottom into workpiece heat room to workpiece, and hot blast enters work from both sides and bottom Part heating chamber, convection current air channel is provided with workpiece heat room, air output and wind direction can be can adjust by adjusting grid, distribute Each air inlet air quantity, makes the temperature inside the box more uniform, ensures that workpiece is heated properly.The hot blast of workpiece is flowed through, in circulating fan Draft effect under, flowed up along the passage among workpiece heat room, from workpiece heat room bottom to top suction type exhausting, Then enter combustion chamber by the long through-hole in return air plate center, not yet clean-burning flue gas is burnt again, save combustion gas energy Source;By setting V-arrangement baffle, the hot blast come out from long through-hole is divided into the fuel burner nozzle for flowing to both sides after two halves respectively, Ensure that the hot wind flow of hot blast both sides is balanced, and can fully burn again.
In order to prevent that heating-up temperature is too high, cold wind is sent into combustion chamber by cold wind air intake passage;In workpiece solidification process Caused imflammable gas is discharged in exhaust treatment system, is excluded after treatment from waste gas discharge blower fan, is reduced pollution, be beneficial to Environmental protection.Waste gas discharges blower fan and the time relay and air inlet air-valve links, waste gas discharge blower fan exhaust duration and interval time without Level is adjustable, discharges the wind that given up in case in good time.Blower fan is discharged by waste gas to link with air-valve, controls cooling area pressure to be born for -200pa Pressure;Waste gas discharges blower fan and passes through workpiece heat room pressure detecting system closed-loop control with air-valve.
Further improve, described two fuel burner nozzles be arranged in parallel, the air inlet of circulating fan positioned at two fire insulation cylinders it Between, the air outlet of each circulating fan is two.The hot blast come out from circulating fan is blowed to the hot-air channel of both sides, convection type Air-supply.
Further improve, anti-explosion safety door is provided with the solidification furnace body, when the pressure in workpiece heat room is more than Setting value, anti-explosion safety door are automatically opened up, depressurized, it is ensured that safety.
Further improve, described solidify is provided with thermometer on furnace body, the temperature in monitoring workpiece heating chamber, work as temperature During more than setting value, air-valve is opened, and is cooled into cold wind.
Further improve, the inwall of the workpiece heat room is provided with buffer arm, and buffer arm is arranged in workpiece heat room 300mm eminences, prevent from passing in and out charging basket accidental impact cabinet wall.
Further improve, the return air plate is loose structure, enters combustion chamber beneficial to the hot blast for flowing through workpiece.
Further improve, automatic safe bolt is provided with the solidification furnace body, automatic safe bolt during the oven door opening Action, fastened with fire door.Alarm set and warning device are additionally provided with fire door, alarm set sends post when door opened formula Shape light prompting, maloperation alarm device action carry out sound and light alarm.It is fixed fire door safety cock when opening, and prevents Only personnel, fork truck and bin pass in and out and oven door surprisingly declines generation grazing and falling accident, it is ensured that operation peace after door opened Entirely.
Compared with prior art, the beneficial effects of the utility model are:
Hot blast enters workpiece heat room from both sides and bottom, is provided with convection current air channel in workpiece heat room, passes through regulation Grid can adjust air output and wind direction, distribute each air inlet air quantity, make the temperature inside the box more uniform, ensure that workpiece is uniform Heating.The hot blast of workpiece is flowed through, under the draft effect of circulating fan, is flowed up along the passage among workpiece heat room, from Then workpiece heat room bottom enters combustion chamber, to not yet filling to top suction type exhausting by the long through-hole in return air plate center The flue gas of divided combustion burns again, saves gas energy;By setting V-arrangement baffle, the hot blast come out from long through-hole is split To flow to the fuel burner nozzle of both sides after two halves respectively, ensure that the hot wind flow of hot blast both sides is balanced, and can be abundant again Burning.
In order to prevent that heating-up temperature is too high, cold wind is sent into combustion chamber by cold wind air intake passage;In workpiece solidification process Caused imflammable gas is discharged in exhaust treatment system, is excluded after treatment from waste gas discharge blower fan, is reduced pollution, be beneficial to Environmental protection.Waste gas discharges blower fan and the time relay and air inlet air-valve links, waste gas discharge blower fan exhaust duration and interval time without Level is adjustable, discharges the wind that given up in case in good time.
Brief description of the drawings
Fig. 1 is the structural representation of direct-fired energy-saving type curing furnace described in the utility model.
Fig. 2 is Fig. 1 side view.
Fig. 3 is Fig. 1 top view.
Embodiment
To make the purpose of this utility model and technical scheme clearer, below in conjunction with the utility model embodiment to this The technical scheme of utility model is clearly and completely described.
Such as Fig. 1-3, a kind of direct-fired energy-saving type curing furnace, including solidification furnace body 1 are described to solidify in furnace body 1 Inner bag is provided with, solidifies and hot-air channel 17 is formed between furnace body 1 and inner bag, the cavity in inner bag is divided into combustion by return air plate 2 Burn room and workpiece heat room two parts, combustion chamber are located at the top of workpiece heat room;Workpiece heat room side wall is by multigroup hole Board-like grid 3 forms, and the bottom of workpiece heat room is welded into grid 4 with channel-section steel, and grid 4 is provided with the steel grating plate of carrying workpiece; The side wall of the solidification furnace body 1 is embedded with two fuel burner nozzles 5, and the bocca of fuel burner nozzle 5 is located in combustion chamber, each flame Mouth outer cover is provided with fire insulation cylinder 6, and fire insulation cylinder 6 is fixed in a combustion chamber, and multiple through holes are offered on fire insulation cylinder 6;The center of return air plate 2 Long through-hole 12 is offered, long through-hole 12 is provided between projection of two fire insulation cylinders 6 on return air plate 2 in combustion chamber The V-arrangement baffle 11 that longitudinal cross-section is, V-arrangement baffle 11 are located at the surface of long through-hole 12, the hot gas come out from long through-hole 12 The fuel burner nozzle for flowing to both sides after two halves respectively is divided into by V-arrangement baffle 11;Two are provided with the solidification furnace body 1 to follow 7, three cold wind air intake passages 9 of ring blower fan and waste gas discharge blower fan 8, the air inlet and combustion chamber of circulating fan 7, circulated air The air outlet of machine is located at the top of hot-air channel 17;The air outlet and combustion chamber of cold wind air intake passage 9, cold wind air intake passage 9 air inlet and atmosphere, and the air inlet of cold wind air intake passage is provided with Electric air valve 10;Waste gas discharge blower fan 8 Air inlet connects with workpiece heat room, and the air outlet of waste gas discharge blower fan 8 connects with exhaust treatment system, exhaust treatment system one As provided for oneself for user, be prior art;Waste gas discharges blower fan 8 and set with the linkage of Electric air valve 10;The solidification side wall of furnace body 1 On be provided with electric up-down fire door 13.
When carrying out curing process to workpiece, fire door 13 is opened by electrical hoist 14, workpiece 16 is put into part heating chamber In, fire door is then shut off, by ramp type weight compression fire door, while fire door surrounding is provided with sealing strip, it is ensured that fire door is closed Sealing afterwards.Then burnt to by fuel gas transmission to fuel burner nozzle, caused hot blast passes through on fire insulation cylinder after burning Through hole enters in heating chamber, then accelerates into the top of hot-air channel by circulating fan, because circulating fan is provided with, and Air outlet is towards both sides, so the hot blast come out by circulating fan is blown to both sides, and along 17 downward convection current of hot-air channel Formula is blown, and then a part of hot blast adds through workpiece heat room side wall orifice-plate type grid into workpiece heat room to workpiece 16 Heat, another part hot blast enter workpiece heat room by the grid 4 of workpiece heat room bottom and workpiece are heated, and hot blast is from two Side and bottom enter workpiece heat room, are provided with convection current air channel in workpiece heat room, can be can adjust out by adjusting grid Air quantity and wind direction, each air inlet air quantity is distributed, makes the temperature inside the box more uniform, ensures that workpiece is heated properly.Flow through workpiece Hot blast, under the draft effect of circulating fan, flowed up along the passage among workpiece heat room, from workpiece heat room bottom to Top suction type exhausting, then enter combustion chamber by the long through-hole in return air plate center, to not yet clean-burning flue gas again Burning, save gas energy;By setting V-arrangement baffle 11, the hot blast come out from long through-hole 12 is divided into after two halves respectively The fuel burner nozzle of both sides is flowed to, ensures that the hot wind flow of hot blast both sides is balanced, and can fully burn again.
In order to prevent that heating-up temperature is too high, cold wind is sent into combustion chamber by cold wind air intake passage;In workpiece solidification process Caused imflammable gas is discharged in exhaust treatment system, is excluded after treatment from waste gas discharge blower fan, is reduced pollution, be beneficial to Environmental protection.Waste gas discharges blower fan and the time relay and air inlet air-valve links, waste gas discharge blower fan exhaust duration and interval time without Level is adjustable, discharges the wind that given up in case in good time.Blower fan is discharged by waste gas to link with air-valve, controls cooling area pressure to be born for -200pa Pressure;Waste gas discharges blower fan and passes through workpiece heat room pressure detecting system closed-loop control with air-valve.
In the present embodiment, described two fuel burner nozzles 5 be arranged in parallel, and 7 air inlets of circulating fan are located at two fire insulations Between cylinder 6, the air outlet of each circulating fan 7 is two.The hot blast come out from circulating fan is blowed to the hot-air channel of both sides, Convection type is blown.
In the present embodiment, anti-explosion safety door 15 is provided with the solidification furnace body 1, the pressure in workpiece heat room More than setting value, anti-explosion safety door automatically opens up, and is depressurized, it is ensured that safety.
In the present embodiment, described solidify is provided with thermometer on furnace body 1, the temperature in monitoring workpiece heating chamber, when When temperature exceedes setting value, air-valve is opened, and is cooled into cold wind.
In the present embodiment, the inwall of the workpiece heat room is provided with buffer arm, and buffer arm is arranged on workpiece heat room Interior 300mm eminences, prevent from passing in and out charging basket accidental impact cabinet wall.
In the present embodiment, the return air plate 2 is loose structure, enters combustion chamber beneficial to the hot blast for flowing through workpiece.
In the present embodiment, it is provided with automatic safe bolt on the solidification furnace body, the automatic safe during oven door opening Bolt acts, and is fastened with fire door.Alarm set and warning device are additionally provided with fire door, alarm set is sent when door opened formula Column light prompting, maloperation alarm device action carry out sound and light alarm.It is fixed fire door safety cock when opening, Prevent personnel, fork truck and bin disengaging and oven door surprisingly declines grazing and falling accident occurs.
Do not done in the utility model illustrate be prior art or by prior art i.e. can be achieved, Er Qieben It is only preferably case study on implementation of the present utility model that case is embodied described in utility model, is not used for limiting this practicality New practical range.The equivalent changes and modifications that i.e. all contents according to present utility model application the scope of the claims are made, should all make For technology category of the present utility model.

Claims (7)

1. a kind of direct-fired energy-saving type curing furnace, it is characterised in that including solidifying furnace body, set in the solidification furnace body Be equipped with inner bag, solidify and hot-air channel is formed between furnace body and inner bag, the cavity in inner bag by return air plate be divided into combustion chamber and Workpiece heat room two parts, combustion chamber are located at the top of workpiece heat room;Workpiece heat room side wall is by multigroup orifice-plate type lattice Grid form, and the bottom of workpiece heat room is welded into grid with channel-section steel, and grid is provided with the steel grating plate of carrying workpiece;
The side wall of the solidification furnace body is embedded with two fuel burner nozzles, and the bocca of fuel burner nozzle is located in combustion chamber, each spray Nozzles outer cover is provided with fire insulation cylinder, and fire insulation cylinder is fixed in a combustion chamber, and multiple through holes are offered on fire insulation cylinder;Open in return air plate center Provided with long through-hole, long through-hole is provided with longitudinal cross-section between projection of two fire insulation cylinders on return air plate in combustion chamber For V-arrangement baffle, V-arrangement baffle is located at the surface of long through-hole, and the hot gas come out from long through-hole is divided into by V-arrangement baffle The fuel burner nozzle of both sides is flowed to after two halves respectively;
Two circulating fans, multiple cold wind air intake passages and waste gas discharge blower fan, circulated air are provided with the solidification furnace body The air inlet and combustion chamber of machine, the air outlet of circulating fan are located at the top of hot-air channel;The air-out of cold wind air intake passage Mouth and combustion chamber, the air inlet and atmosphere of cold wind air intake passage, and the air inlet of cold wind air intake passage is provided with Electric air valve;The air inlet of waste gas discharge blower fan connects with workpiece heat room, and waste gas discharges the air outlet and exhaust-gas treatment of blower fan System connectivity;Waste gas discharges blower fan and set with Electric air valve linkage;
Electric up-down fire door is provided with the solidification furnace body side wall.
2. direct-fired energy-saving type curing furnace according to claim 1, it is characterised in that described two fuel burner nozzles are put down Row is set, and for the air inlet of circulating fan between two fire insulation cylinders, the air outlet of each circulating fan is two.
3. direct-fired energy-saving type curing furnace according to claim 1 or 2, it is characterised in that the solidification furnace body On be provided with anti-explosion safety door.
4. direct-fired energy-saving type curing furnace according to claim 3, it is characterised in that set on the solidification furnace body It is equipped with thermometer.
5. direct-fired energy-saving type curing furnace according to claim 1, it is characterised in that the workpiece heat room it is interior Wall is provided with buffer arm.
6. direct-fired energy-saving type curing furnace according to claim 1, it is characterised in that the return air plate is porous knot Structure.
7. direct-fired energy-saving type curing furnace according to claim 1, it is characterised in that set on the solidification furnace body It is equipped with safety cock, safety cock acts during oven door opening.
CN201720336400.9U 2017-03-31 2017-03-31 A kind of direct-fired energy-saving type curing furnace Expired - Fee Related CN206812308U (en)

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CN201720336400.9U CN206812308U (en) 2017-03-31 2017-03-31 A kind of direct-fired energy-saving type curing furnace

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CN201720336400.9U CN206812308U (en) 2017-03-31 2017-03-31 A kind of direct-fired energy-saving type curing furnace

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106863667A (en) * 2017-03-31 2017-06-20 南京迦南炉业有限公司 A kind of direct-fired energy-saving type curing furnace
CN109130026A (en) * 2018-09-10 2019-01-04 南京永亮炉业有限公司 It is a kind of to mix cold wind cooling curing oven automatically
CN111496236A (en) * 2020-06-24 2020-08-07 童乾坤 Gas heated air circulation pouring ladle drying oven

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106863667A (en) * 2017-03-31 2017-06-20 南京迦南炉业有限公司 A kind of direct-fired energy-saving type curing furnace
CN109130026A (en) * 2018-09-10 2019-01-04 南京永亮炉业有限公司 It is a kind of to mix cold wind cooling curing oven automatically
CN111496236A (en) * 2020-06-24 2020-08-07 童乾坤 Gas heated air circulation pouring ladle drying oven

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Granted publication date: 20171229