CN104313267A - Device for realizing salt and water recycling by utilizing salt quenching waste heat - Google Patents
Device for realizing salt and water recycling by utilizing salt quenching waste heat Download PDFInfo
- Publication number
- CN104313267A CN104313267A CN201410519877.1A CN201410519877A CN104313267A CN 104313267 A CN104313267 A CN 104313267A CN 201410519877 A CN201410519877 A CN 201410519877A CN 104313267 A CN104313267 A CN 104313267A
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- salt
- strong brine
- condenser
- evaporation cavity
- quenching
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/607—Molten salts
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- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention relates to a device for realizing salt and water recycling by utilizing salt quenching waste heat. The device comprises a heat exchange evaporator and a condenser, wherein the heat exchanger evaporator is arranged above a quenching salt bath, and the bottom of the heat exchange evaporator is communicated with the quenching salt bath; the heat exchange evaporator main body consists of a plurality of evaporation plates which are superposed in an evaporation cavity layer by layer from bottom to top; each evaporation plate is equipped with a high-temperature fused salt inlet, one end of which is connected to a high-temperature salt fusing bath, and a cooled fused salt outlet, one end of which extends out of the outer part of the evaporation cavity; the upper part of the condenser is connected to the upper part of the evaporation cavity; a clear water slot is arranged on the lower part of the condenser; and the condenser is respectively equipped with a low-temperature strong brine inlet for introducing the low-temperature strong brine from a cleaner and a strong brine outlet for conveying the pre-heated strong brine subjected to heat exchanger to the evaporation cavity and dropwise adding the pre-heated strong brine on the top-layer evaporation plate. The device disclosed by the invention is simple in structure, reliable in performance, various in use, capable of being directly applied for a salt quenching thermal treatment line, so that not only can the quenching waste heat be utilized, but also the salt and the water can be realized, and the environment can be protected.
Description
Technical field
The present invention relates to thermal treatment salt bath quenching, salt water evaporation apparatus, specifically a kind of device utilizing salt hardening waste heat to realize salt, Water Sproading.
Background technology
Quenching refers to that workpiece is heated to certain temperature and quenches fast in certain quenchant after being fully incubated, thus changes the processing method of inside workpiece weave construction and performance.Quenchant generally has water, oil, fused salt etc., and fused salt has the unrivaled advantage of other quenchant because of it, so be widely used at heat treatment industry.But can stick a part of salt of band after workpiece quenches in fused salt, in follow-up cleaning process, salt has been dissolved in aqueous cleaning solution.Along with increasing of salt concn in water, cleaning performance will worse and worse, but strong brine can not directly discharge, otherwise can cause serious environmental pollution, is also great waste simultaneously.
How to be reclaimed by the salt melted in water, be the problem that heat treatment industry faces.The principle of common salt vaporizer adopts electrically heated method to make water vapor, thus separated by salt.This equipment volume is comparatively large, and investment is large, more crucially consumes energy too large, and the strong brine of ordinary salt evaporator evaporation 1 liter of saliferous 5%, approximately consumes 1.2 degree of electricity.
And fused salt is after by workpiece quenching, because workpiece discharges a large amount of heats, the temperature of saline solution is raised, be the stability ensureing salt hardening, other method of cooling also must be adopted to be lowered by temperature of molten salt, heat is by slatterning in vain.Salt bath quenching waste heat can be utilized to evaporate to containing strong brine the recovery realizing salt? this will realize the cycling and reutilization of salt and water, and can a large amount of saves energy.
Summary of the invention
The present invention is intended to solve problem described in background technology, and a kind of device utilizing salt hardening waste heat to realize salt, Water Sproading is provided, the heat absorbed during the quenching of its Appropriate application salt bath is the water evaporates in brine waste, salt and water are returned in quenching tank and cleaning machine, forms recycle.
The technical scheme that the present invention solves the employing of described problem is:
A kind of device utilizing salt hardening waste heat to realize salt, Water Sproading, comprise heat exchanging evaporator, condenser, described heat exchanging evaporator is placed in above quenching salt bath and bottom and communicates with quenching salt bath, heat exchanging evaporator main body is made up of several evaporating pans be layering from bottom to top in evaporation cavity, each evaporating pan be provided with one end and high temperature melting salt bath together with high-temperature molten salt import and one end stretch out the fused salt after the cooling of evaporation cavity outside and export; Described condenser top and described evaporation cavity top together with, condenser is provided with Rinsing Area, and condenser is respectively arranged with the low temperature strong brine entrance that attracts from cleaning machine and is delivered to by the strong brine of preheating after heat exchange evaporation cavity and the strong brine outlet instilled on top layer evaporating pan.
Adopt the present invention of technique scheme, compared with prior art, its beneficial aspects is:
Structure is simple, and dependable performance, purposes is various, can directly apply for salt hardening heat-treatment lines, both make use of quenching waste heat, realizes the recycling of salt and water, protects environment again.This device volume is little, less investment, environmental protection are practical.
As preferably, the present invention further technical scheme is:
Described high temperature melting salt bath and described evaporation cavity are arranged in juxtaposition in the housing of heat exchanging evaporator, and high temperature melting salt bath upper end is provided with high-temperature molten salt overflow port, lower end by high-temperature molten salt input channel be placed in the high temperature salt pump quenched in salt bath and be connected.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
In figure: 1-high temperature salt pump, 2-high-temperature molten salt input channel, 3-housing, 4-high temperature melting salt bath, 5-evaporating pan, the import of 6-high-temperature molten salt, 7-overflow port, 8-evaporation cavity, 9-strong brine transport pipe, 10-brine stream gauge, 11-strong brine exports, 12-condenser, 13-low temperature strong brine entrance, 14-Rinsing Area, 15-fused salt exports, and 16-quenches salt bath.
Embodiment
Below in conjunction with embodiment, the invention will be further described, and object is only to understand content of the present invention better.Therefore, the cited case not limits the scope of the invention.
See Fig. 1, this device utilizing salt hardening waste heat to realize salt, Water Sproading that the present embodiment provides, form primarily of condenser 12 and heat exchanging evaporator, the overall top being arranged on quenching salt bath 15 by its housing 3 of heat exchanging evaporator, is communicated with quenching salt bath 15 bottom housing 3; An evaporation cavity 8 and a high temperature melting salt bath 4 is arranged in juxtaposition in the housing 3 of heat exchanging evaporator, be layering from bottom to top 20 evaporating pans 5 in evaporation cavity 8, each evaporating pan 5 be provided with one end and high temperature melting salt bath 4 together with high-temperature molten salt import 6 and one end stretch out the fused salt after the cooling of evaporation cavity 8 outside and export 15; High temperature melting salt bath 4 upper end is provided with high-temperature molten salt overflow port 7, lower end by high-temperature molten salt input channel 2 be placed in the high temperature salt pump 1 quenched in salt bath 16 and be connected.
Condenser 12 top and evaporation cavity 8 top together with, condenser 12 bottom is provided with Rinsing Area 14, condenser 12 be respectively arranged with the low temperature strong brine entrance 13 and heat exchange attracted from cleaning machine after preheating strong brine outlet 11, strong brine outlet 11 is connected with strong brine transport pipe 9 one end, strong brine transport pipe 9 the other end to stretch in evaporation cavity 8 and extends to above the evaporating pan 5 of top layer, brine stream gauge 10 strong brine transport pipe 9 is equipped with, control brine stream gauge 10, strong brine can be made to be instilled above the evaporating pan 5 of top layer by strong brine transport pipe 9.
The above-mentioned device utilizing salt hardening waste heat to realize salt, Water Sproading, its working process is summarized as follows:
Cleaning machine is taken out the strong brine come and is entered in condenser 12 by low temperature strong brine entrance 13, and low temperature strong brine and the hot steam entered in condenser 12 carry out heat exchange, and hot steam is cooled condenses into water, then drops in the Rinsing Area 14 of condenser 12 bottom; In this heat exchanging process, low temperature strong brine is preheated, through the strong brine of preheating, a part is added dropwise to evaporating pan 5 through strong brine transport pipe 9 from evaporation cavity 8 top, strong brine limit flowing limit evaporation in 20 layers of evaporating pan 5 from top to bottom, final remaining pure salt flows directly in quenching salt bath 16; The steam produced then enters condenser 12 from the top of evaporation cavity 8.And high-temperature molten salt is driven in high temperature melting salt bath 4 by the high temperature salt pump 1 of an often running, and the lower space of every layer of salt evaporating pan 5 is entered by the high-temperature molten salt import 6 of every layer of evaporating pan 5, then flow out from the other end of evaporating pan 5, the fused salt of flowing constantly provides evaporation heat to evaporating pan 5, with the strong brine of instillation in evaporation pan 5, the cooled cooling of high-temperature molten salt simultaneously.
Enter water of condensation in Rinsing Area 14 can be recovered in cleaning machine and recycle, also can do other purposes and use; The fused salt be evaporated then flows directly in quenching salt bath 16 and recycles.Another part strong brine through preheating is returned in cleaning machine, achieves the heating to scavenging solution, thus also saves the heating power consumption of cleaning machine.High-temperature molten salt, in the process of heating strong brine, is constantly cooled, and the transfer achieving heat utilizes.
Claims (2)
1. the device utilizing salt hardening waste heat to realize salt, Water Sproading, comprise heat exchanging evaporator, condenser, it is characterized in that, described heat exchanging evaporator is placed in above quenching salt bath and bottom and communicates with quenching salt bath, heat exchanging evaporator main body is made up of several evaporating pans be layering from bottom to top in evaporation cavity, each evaporating pan be provided with one end and high temperature melting salt bath together with high-temperature molten salt import and one end stretch out the fused salt after the cooling of evaporation cavity outside and export; Described condenser top and described evaporation cavity top together with, condenser is provided with Rinsing Area, and condenser is respectively arranged with the low temperature strong brine entrance that attracts from cleaning machine and is delivered to by the strong brine of preheating after heat exchange evaporation cavity and the strong brine outlet instilled on top layer evaporating pan.
2. the device utilizing salt hardening waste heat to realize salt, Water Sproading according to claim 1, it is characterized in that, described high temperature melting salt bath and described evaporation cavity are arranged in juxtaposition in the housing of heat exchanging evaporator, high temperature melting salt bath upper end is provided with high-temperature molten salt overflow port, lower end by high-temperature molten salt input channel be placed in the high temperature salt pump quenched in salt bath and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410519877.1A CN104313267B (en) | 2014-10-07 | 2014-10-07 | The device that waste heat realizes salt, Water Sproading is quenched using salt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410519877.1A CN104313267B (en) | 2014-10-07 | 2014-10-07 | The device that waste heat realizes salt, Water Sproading is quenched using salt |
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| CN104313267A true CN104313267A (en) | 2015-01-28 |
| CN104313267B CN104313267B (en) | 2017-09-01 |
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| CN201410519877.1A Active CN104313267B (en) | 2014-10-07 | 2014-10-07 | The device that waste heat realizes salt, Water Sproading is quenched using salt |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105543450A (en) * | 2016-01-28 | 2016-05-04 | 焦作固德联合机械制造有限公司 | Method and device for recycling nitrate cleaning water of isothermal quenching furnace |
| CN107792908A (en) * | 2017-10-19 | 2018-03-13 | 杭州金舟科技股份有限公司 | A kind of energy-saving residual heat utilizes salt separator |
| CN108048629A (en) * | 2018-01-23 | 2018-05-18 | 北京建通鸿翔科技有限公司 | A kind of hardening media temperature control equipment |
| CN108043053A (en) * | 2017-12-20 | 2018-05-18 | 盐城丰东特种炉业有限公司 | For the salt separator of salt bath system |
| CN108721925A (en) * | 2018-08-10 | 2018-11-02 | 亚捷科技（唐山）股份有限公司 | A kind of UTILIZATION OF VESIDUAL HEAT IN salt separator |
| CN112410521A (en) * | 2020-10-23 | 2021-02-26 | 宝钢集团南通线材制品有限公司 | Automatic recycling method and device for nitrate in steel wire salt bath heat treatment |
| CN118637713A (en) * | 2024-07-31 | 2024-09-13 | 南京费杰智能科技有限公司 | Infiltration waste liquid treatment process and device utilizing submerged combustion heating treatment |
| CN118637713B (en) * | 2024-07-31 | 2024-10-22 | 南京费杰智能科技有限公司 | Infiltration waste liquid treatment process and device utilizing submerged combustion heating treatment |
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| JPS5732323A (en) * | 1980-08-01 | 1982-02-22 | Mitsubishi Heavy Ind Ltd | Method for temperature control of high-temperature molten salt and recovery of salt solution |
| CN102390846A (en) * | 2011-08-11 | 2012-03-28 | 唐山亚捷机械有限公司 | Waste heat salt and water separation device |
| CN202688377U (en) * | 2012-07-12 | 2013-01-23 | 唐山西境环保科技有限公司 | Device for recycling salt by using quenching afterheat |
| CN103849725A (en) * | 2014-03-04 | 2014-06-11 | 金舟科技股份有限公司 | Nitrate-water separating device |
| CN204080020U (en) * | 2014-10-07 | 2015-01-07 | 唐山亚捷机械有限公司 | Salt hardening waste heat is utilized to realize the device of salt, Water Sproading |
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Patent Citations (5)
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| JPS5732323A (en) * | 1980-08-01 | 1982-02-22 | Mitsubishi Heavy Ind Ltd | Method for temperature control of high-temperature molten salt and recovery of salt solution |
| CN102390846A (en) * | 2011-08-11 | 2012-03-28 | 唐山亚捷机械有限公司 | Waste heat salt and water separation device |
| CN202688377U (en) * | 2012-07-12 | 2013-01-23 | 唐山西境环保科技有限公司 | Device for recycling salt by using quenching afterheat |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105543450A (en) * | 2016-01-28 | 2016-05-04 | 焦作固德联合机械制造有限公司 | Method and device for recycling nitrate cleaning water of isothermal quenching furnace |
| CN105543450B (en) * | 2016-01-28 | 2017-08-29 | 焦作固德联合机械制造有限公司 | A kind of isothermal quenching furnace cleaning salt made from earth containing a comparatively high percentage of sodium chloride water recovery method and device |
| CN107792908A (en) * | 2017-10-19 | 2018-03-13 | 杭州金舟科技股份有限公司 | A kind of energy-saving residual heat utilizes salt separator |
| CN108043053A (en) * | 2017-12-20 | 2018-05-18 | 盐城丰东特种炉业有限公司 | For the salt separator of salt bath system |
| CN108048629A (en) * | 2018-01-23 | 2018-05-18 | 北京建通鸿翔科技有限公司 | A kind of hardening media temperature control equipment |
| CN108721925A (en) * | 2018-08-10 | 2018-11-02 | 亚捷科技（唐山）股份有限公司 | A kind of UTILIZATION OF VESIDUAL HEAT IN salt separator |
| CN108721925B (en) * | 2018-08-10 | 2024-06-07 | 亚捷科技（唐山）股份有限公司 | Brine separator utilizing waste heat |
| CN112410521A (en) * | 2020-10-23 | 2021-02-26 | 宝钢集团南通线材制品有限公司 | Automatic recycling method and device for nitrate in steel wire salt bath heat treatment |
| CN118637713A (en) * | 2024-07-31 | 2024-09-13 | 南京费杰智能科技有限公司 | Infiltration waste liquid treatment process and device utilizing submerged combustion heating treatment |
| CN118637713B (en) * | 2024-07-31 | 2024-10-22 | 南京费杰智能科技有限公司 | Infiltration waste liquid treatment process and device utilizing submerged combustion heating treatment |
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| CN104313267B (en) | 2017-09-01 |
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Address after: 064002 village north of song he Ma Zhuang village, south of Tangshan City, Hebei Province Patentee after: Yajie science and Technology (Tangshan) Limited by Share Ltd Address before: 064002 village north of song he Ma Zhuang village, south of Tangshan City, Hebei Province Patentee before: Tangshan Yajie Machinery Co., Ltd. |