CN212158195U - Waste heat recovery device for heat treatment furnace - Google Patents

Waste heat recovery device for heat treatment furnace Download PDF

Info

Publication number
CN212158195U
CN212158195U CN202020689039.XU CN202020689039U CN212158195U CN 212158195 U CN212158195 U CN 212158195U CN 202020689039 U CN202020689039 U CN 202020689039U CN 212158195 U CN212158195 U CN 212158195U
Authority
CN
China
Prior art keywords
treatment furnace
waste heat
heat treatment
heat recovery
circulating water
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.)
Active
Application number
CN202020689039.XU
Other languages
Chinese (zh)
Inventor
吴汉香
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.)
Tianjin Tianyi Guangyuan Metal Technology Co ltd
Original Assignee
Tianjin Tianyi Guangyuan Metal Technology Co ltd
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 Tianjin Tianyi Guangyuan Metal Technology Co ltd filed Critical Tianjin Tianyi Guangyuan Metal Technology Co ltd
Priority to CN202020689039.XU priority Critical patent/CN212158195U/en
Application granted granted Critical
Publication of CN212158195U publication Critical patent/CN212158195U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Landscapes

  • Treating Waste Gases (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

The utility model discloses a waste heat recovery device for heat treatment furnace, including heat treatment furnace and the flue gas waste heat recovery mechanism and the slag waste heat recovery mechanism of being connected with heat treatment furnace, flue gas waste heat recovery mechanism includes the dust settling chamber of connecting through the flue, waste heat recoverer, first fan and flue gas filtering mechanism, the inside riser that is equipped with a plurality of staggered arrangement of dust settling chamber, waste heat recoverer passes through the backheat pipe and is connected with heat treatment furnace, slag waste heat recovery mechanism includes the slag box, pass through the cylinder heat exchanger that slag discharge passage is connected with the slag box, cylinder heat exchanger upper portion and lower part are equipped with circulating water oral siphon and circulating water outlet pipe respectively. The utility model aims at providing a waste heat recovery device for a heat treatment furnace, which solves the problems that a large amount of high-temperature waste gas generated by the heat treatment furnace in the prior art can not be purified in time, air is polluted, heat energy can not be effectively utilized and the like; the heat recovery can be ensured, and the pollution to the air is reduced.

Description

Waste heat recovery device for heat treatment furnace
Technical Field
The utility model relates to a heat treatment processing technology field especially relates to a waste heat recovery device for heat treatment furnace.
Background
Heat treatment is one of the important processes in mechanical manufacturing, and generally does not change the shape and overall chemical composition of the workpiece, but imparts or improves the performance properties of the workpiece by changing the microstructure inside the workpiece, or changing the chemical composition of the surface of the workpiece. In the heat treatment process, a heat treatment furnace is required. The heat treatment furnace may be classified into a quenching furnace, a tempering furnace, an annealing furnace, and the like according to the purpose.
The heat treatment furnace is used for carrying out heat treatment processing on industrial products such as mechanical parts and the like to generate a large amount of high-temperature waste gas, and at present, the main treatment means adopted by enterprises for the waste gas is directly discharged into the atmosphere, so that the air is polluted and heat energy resources are wasted. Therefore, a device capable of recovering heat of flue gas with certain heat discharged in processing production is needed, the heat recovery can be ensured, and the pollution to air is reduced.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the utility model aims to provide a waste heat recovery device for a heat treatment furnace, which solves the problems that a large amount of high-temperature waste gas generated by the heat treatment furnace in the prior art can not be purified in time, pollute air, and effectively utilize heat energy; the heat recovery can be ensured, and the pollution to the air is reduced.
The utility model provides a technical scheme that above-mentioned technical problem adopted is: a waste heat recovery device for a heat treatment furnace comprises the heat treatment furnace, a smoke waste heat recovery mechanism and a slag waste heat recovery mechanism which are connected with the heat treatment furnace, the flue gas waste heat recovery mechanism is arranged at the top of the heat treatment furnace through a smoke outlet and comprises a dust settling chamber, a waste heat recoverer, a first fan and a flue gas filtering mechanism which are connected through a flue, a plurality of vertical plates which are arranged in a staggered way are arranged in the dust settling chamber, the waste heat recoverer is connected with the heat treatment furnace through a regenerative pipe, the slag waste heat recovery mechanism is arranged at the bottom of the heat treatment furnace through a slag discharge port and comprises a slag box and a roller heat exchanger connected with the slag box through a slag discharge channel, and the upper part and the lower part of the roller heat exchanger are respectively provided with a circulating water inlet pipe and a circulating water outlet pipe, and the circulating water inlet pipe and the circulating water outlet pipe are externally connected with a water source.
Furthermore, a plurality of the vertical plates are the same in length and are vertically and fixedly arranged in the dust settling chamber.
Further, inside first filter screen, active carbon adsorption layer and the second filter screen of having set gradually along the air flow direction of flue gas filter mechanism, the aperture of first filter screen is greater than the aperture of second filter screen.
Furthermore, a second fan is arranged on the heat return pipe.
Furthermore, a plurality of heat exchange tubes are arranged in the waste heat recoverer, and the plurality of heat exchange tubes are spiral heat exchange tubes.
Furthermore, a circulating water jacket is arranged on the wall of the roller heat exchanger, and the circulating water inlet pipe and the circulating water outlet pipe are communicated with the circulating water jacket.
The utility model has the advantages that:
the utility model discloses a flue gas waste heat recovery mechanism and slag waste heat recovery mechanism that the setting is connected with heat treatment furnace carry out waste heat recovery respectively to the high temperature flue gas and the slag that heat treatment furnace produced for waste heat recovery is effectual. The dust settling chamber is arranged, the vertical plates are arranged in the dust settling chamber, so that the smoke firstly enters the dust settling chamber to settle, the vertical plates can block the passing smoke, the flow speed of the smoke passing through the dust settling chamber is reduced, the dust in the smoke can be deposited at the bottom of the dust settling chamber, the deposited dust is collected and cleaned by periodic cleaning, and the effect of timely purifying and treating high-temperature waste gas is realized by the smoke filtering mechanism; the waste heat recoverer is connected with the heat treatment furnace through a heat return pipe, a plurality of heat exchange pipes are arranged in the waste heat recoverer and are spiral heat exchange pipes, heat in flue gas is transferred to the heat exchange pipes through the waste heat recoverer and the heat exchange pipes, heat recovery is achieved, a second fan is arranged on the heat return pipe, hot air recovered by the waste heat recoverer is introduced into the heat treatment furnace through the heat return pipe by the second fan, and therefore the purposes of reducing the exhaust temperature of waste gas and saving energy of a combustion chamber are achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic structural diagram of the flue gas filtering mechanism of the present invention.
Wherein:
1. a heat treatment furnace; 2. a smoke outlet; 3. a flue; 4. a dust settling chamber; 5. a waste heat recoverer; 6. a first fan; 7. a flue gas filtering mechanism; 71. a first filter screen; 72. an activated carbon adsorption layer; 73. a second filter screen; 8. a heat recovery pipe; 9. a second fan; 10. a vertical plate; 11. a heat exchange pipe; 12. a slag discharge port; 13. a slag box; 14. a drum heat exchanger; 15. circulating water enters the water pipe; 16. a circulating water outlet pipe;
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, a waste heat recovery device for a heat treatment furnace 1 comprises the heat treatment furnace 1 and a flue gas waste heat recovery mechanism and a slag waste heat recovery mechanism connected with the heat treatment furnace 1, wherein the flue gas waste heat recovery mechanism is arranged at the top of the heat treatment furnace 1 through a smoke outlet 2, the flue gas waste heat recovery mechanism comprises a dust settling chamber 4, a waste heat recoverer 5, a first fan 6 and a flue gas filtering mechanism 7 which are connected through a flue 3, a plurality of vertical plates 10 which are arranged in a staggered manner are arranged in the dust settling chamber 4, the vertical plates 10 have the same length and are vertically and fixedly arranged in the dust settling chamber 4, the flue gas firstly enters the dust settling chamber 4 to settle, and the vertical plates 10 can block the passing flue gas, so that the flow rate of the flue gas passing through the dust settling chamber 4 is slowed down, the dust in the flue gas can deposit 4 bottoms in the dust settling chamber to through regularly clearing up the clearance of collecting the sedimentary dust, realized that high temperature waste gas can in time purification treatment's effect.
Waste heat recoverer 5 is connected with heat treatment furnace 1 through backheating pipe 8, be equipped with a plurality of heat exchange tubes 11 in the waste heat recoverer 5, it is a plurality of heat exchange tubes 11 are spiral heat exchange tube 11 for heat transfer in the flue gas realizes thermal recovery for heat exchange tube 11 through setting up waste heat recoverer 5 and a plurality of heat exchange tube 11, be equipped with second fan 9 on the backheating pipe 8, the hot-air that second fan 9 retrieved waste heat recoverer 5 passes through in the backheating pipe 8 reintroduced heat treatment furnace 1, thereby reaches the purpose that reduces the exhaust temperature of waste gas and practices thrift the combustion chamber energy.
The slag waste heat recovery mechanism is arranged at the bottom of the heat treatment furnace 1 through a slag discharge port 12 and comprises a slag box 13 and a roller heat exchanger 14 connected with the slag box 13 through a slag discharge channel, a circulating water inlet pipe 15 and a circulating water outlet pipe 16 are respectively arranged at the upper part and the lower part of the roller heat exchanger 14, the circulating water inlet pipe 15 and the circulating water outlet pipe 16 are externally connected with a water source, a circulating water jacket is arranged on the wall of the roller heat exchanger 14, and the circulating water inlet pipe 15 and the circulating water outlet pipe 16 are communicated with the circulating water jacket.
As shown in fig. 2, a first filter screen 71, an activated carbon adsorption layer 72 and a second filter screen 73 are sequentially arranged in the flue gas filtering mechanism 7 along the air flowing direction, that is, the first filter screen 71, the activated carbon adsorption layer 72 and the second filter screen 73 are vertically arranged in the flue gas filtering mechanism 7, and the pore diameter of the first filter screen 71 is larger than that of the second filter screen 73; after the preliminary sedimentation of the dust settling chamber 4, the flue gas enters the flue gas filtering mechanism 7, firstly is filtered through the first filter screen 71 after entering, and then the activated carbon adsorption layer 72 and the second filter screen 73 finally filter the passing flue gas, so that the purified flue gas is discharged, and the pollution to the air is reduced.
The working mode is as follows:
and (3) recovering waste heat of the flue gas generated by the heat treatment furnace 1: flue gas enters a flue 3 through a smoke outlet 2 at the top of a heat treatment furnace 1, because the pressure in the furnace is higher, the flow velocity of the flue gas entering a dust settling chamber 4 is higher, the flue gas blocks the passing flue gas after entering the dust settling chamber 4 by arranging a plurality of vertical plates 10 in the dust settling chamber 4, the flow velocity of the flue gas passing through the dust settling chamber 4 is reduced, dust in the flue gas can be deposited at the bottom of the dust settling chamber 4, the deposited dust is collected and cleaned by periodic cleaning, the flue gas settled by the dust settling chamber 4 enters a waste heat recoverer 5, heat in the flue gas is transferred to a heat exchange tube 11 to realize heat recovery, the flue gas discharged from the waste heat recoverer 5 enters a flue gas filtering mechanism 7 by suction of a first fan 6, is firstly filtered by a first filter screen 71 after entering, and then the passing flue gas is finally filtered by an active carbon adsorption layer 72 and a second filter screen 73, finally, the purified flue gas is discharged, so that the pollution to the air is reduced, the waste heat recoverer 5 is connected with the heat return pipe 8, the second fan 9 is arranged on the heat return pipe 8, and the hot air recovered by the waste heat recoverer 5 is introduced into the heat treatment furnace 1 again through the heat return pipe 8 by the second fan 9, so that the aims of reducing the discharge temperature of waste gas and saving energy of a combustion chamber are fulfilled;
and (3) recovering waste heat of the slag generated by the heat treatment furnace 1: slag enters a slag box 13 through a slag discharge port 12 at the bottom of the heat treatment furnace 1 for temporary storage, then enters a roller heat exchanger 14 through a slag discharge channel for heat recovery, and a circulating water jacket is communicated with a circulating water inlet pipe 15 and a circulating water outlet pipe 16 to cool the slag through cooling water and then discharge slag.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (6)

1. A waste heat recovery device for a heat treatment furnace is characterized by comprising the heat treatment furnace, a smoke waste heat recovery mechanism and a slag waste heat recovery mechanism which are connected with the heat treatment furnace, the flue gas waste heat recovery mechanism is arranged at the top of the heat treatment furnace through a smoke outlet and comprises a dust settling chamber, a waste heat recoverer, a first fan and a flue gas filtering mechanism which are connected through a flue, a plurality of vertical plates which are arranged in a staggered way are arranged in the dust settling chamber, the waste heat recoverer is connected with the heat treatment furnace through a regenerative pipe, the slag waste heat recovery mechanism is arranged at the bottom of the heat treatment furnace through a slag discharge port and comprises a slag box and a roller heat exchanger connected with the slag box through a slag discharge channel, and the upper part and the lower part of the roller heat exchanger are respectively provided with a circulating water inlet pipe and a circulating water outlet pipe, and the circulating water inlet pipe and the circulating water outlet pipe are externally connected with a water source.
2. The waste heat recovery device for a heat treatment furnace of claim 1, wherein the plurality of vertical plates have the same length and are vertically and fixedly arranged in the dust settling chamber.
3. The waste heat recovery device for the heat treatment furnace according to claim 1, wherein a first filter screen, an activated carbon adsorption layer and a second filter screen are sequentially arranged in the flue gas filtering mechanism along the air flow direction, and the pore diameter of the first filter screen is larger than that of the second filter screen.
4. The waste heat recovery device for the heat treatment furnace according to claim 1, wherein the heat recovery pipe is provided with a second fan.
5. The waste heat recovery device for the heat treatment furnace as claimed in claim 1, wherein a plurality of heat exchange tubes are arranged in the waste heat recovery device, and the plurality of heat exchange tubes are spiral heat exchange tubes.
6. The waste heat recovery device for the heat treatment furnace according to claim 1, wherein a circulating water jacket is arranged on the wall of the drum heat exchanger, and the circulating water inlet pipe and the circulating water outlet pipe are communicated with the circulating water jacket.
CN202020689039.XU 2020-04-29 2020-04-29 Waste heat recovery device for heat treatment furnace Active CN212158195U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020689039.XU CN212158195U (en) 2020-04-29 2020-04-29 Waste heat recovery device for heat treatment furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020689039.XU CN212158195U (en) 2020-04-29 2020-04-29 Waste heat recovery device for heat treatment furnace

Publications (1)

Publication Number Publication Date
CN212158195U true CN212158195U (en) 2020-12-15

Family

ID=73721611

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020689039.XU Active CN212158195U (en) 2020-04-29 2020-04-29 Waste heat recovery device for heat treatment furnace

Country Status (1)

Country Link
CN (1) CN212158195U (en)

Similar Documents

Publication Publication Date Title
CN212158195U (en) Waste heat recovery device for heat treatment furnace
CN212988048U (en) Metallurgical equipment capable of removing dust and degassing
CN102851048B (en) A kind of gas purge system realizing slag heat utilization
CN210473404U (en) Multi-nozzle type ethylene coke cleaning and dust removing device
CN219640773U (en) Industrial tail gas waste heat utilization device convenient to filter and purify
CN104593026A (en) Device and method for large-scale low-temperature pyrolysis of low-rank coal powder
CN111059553A (en) Full-flow ash removal incineration system applied to high-ash-content working condition
CN102679751B (en) Organic heat carrier waste-heat furnace and waste-heat furnace system
CN215638864U (en) Aluminum melting protection flue gas purification and recovery system
CN214319731U (en) High-temperature kiln waste heat recovery device
CN213089843U (en) Dust collecting device for biomass boiler dust remover
CN218210816U (en) Waste heat recovery mechanism for carbon production calcining furnace
CN2856912Y (en) Dust removing heat pipe heat exchanger
CN212417550U (en) Oil removal reaction purifier with double-tower structure
CN113418400A (en) Aluminum smelting pot gas cleaning recovery unit
CN111744297A (en) Tail gas dust removal waste heat recovery system
CN106524774A (en) Flue gas cleaning and heat exchange integrated device
CN202630705U (en) Organic heat carrier waste heat furnace and waste heat furnace system
CN110793341A (en) Electric furnace flue gas purification and waste heat utilization system and method
CN201281550Y (en) Dust separation device for industrial smoke
CN219995939U (en) Heat pipe flue gas waste heat recovery and purification device
CN110743305A (en) Waste gas treatment system and method in plastic particle production line
CN219474310U (en) Waste heat recovery device of coking equipment
CN219502372U (en) Ultra-clean treatment device for flue gas of electric furnace
CN109692534A (en) High-temperature flue gas purification and waste heat recycling grain bed and working method with partial size and the dual regulation of temperature

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant