CN101812569A - Spade heat-treatment medium recovering device and method for recovering medium using the device - Google Patents
Spade heat-treatment medium recovering device and method for recovering medium using the device Download PDFInfo
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- CN101812569A CN101812569A CN201010150497A CN201010150497A CN101812569A CN 101812569 A CN101812569 A CN 101812569A CN 201010150497 A CN201010150497 A CN 201010150497A CN 201010150497 A CN201010150497 A CN 201010150497A CN 101812569 A CN101812569 A CN 101812569A
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Abstract
The invention relates to a spade heat-treatment medium recovery device and a method for recovering the medium using the device. The device comprises a conveying chain, a sprinkler device, a salt bath groove, a bleaching chamber, an immersing and diluting tank, a fresh water spray chamber and a three-level cooling pool. The salt bath groove is a heat-treatment iso-quenching bath provided with nitrate; the bleaching chamber for washing and diluting work pieces, the immersing and diluting tank and the fresh water spray chamber are arranged in a triangular shape, wherein the bottom of the bleaching chamber and the upper part of the immersing and diluting tank are provided with osculums of tail water in turn, and a washing recovery pipeline is communicated with an one-level recovering pool; three recovery pools constitute the three-level cooling pool which is arranged under the ground. The method comprises the steps of hoisting the work pieces on the conveying chain and entering the work pieces to the salt bath groove provided with the nitrate to carry out heat-treatment iso-quenching; then carrying out three-level washing and leading the fresh water tail water to enter the one-level recovery pool to be naturally cooled; and at last, recovering the medium in the three-level recovery pool. The invention has the advantages of convenient operation, saved energy, simple recovery process, closed circulated process and no pollution. The device can use the residual heat of a heating furnace.
Description
Technical field
The present invention relates to a kind ofly clean the device that reclaims heat-treatment medium and use this device and clean the method that reclaims heat-treatment medium specifically a kind of spade heat-treatment medium retrieving arrangement and with the method for this device recovering medium.
Background technology
Being generally used for heat treated medium has water, oil, salt etc., when paint sprayings such as processed workpiece surface need paint, molding powder, need clean the residual heat-treatment medium of workpiece surface.Wherein, contain that major part contains nitrite anions in the thermal treatment waste water of salt medium, directly discharging causes severe contamination to environment, when cleaning salt medium,, often adopt flowing water hydro-peening technology in order to guarantee the quality of workpiece surface for this reason, in washing process, need to consume great amount of water resources, this method cost height of disposing of sewage causes serious burden to medium-sized and small enterprises.By retrieval at present in the spade production, recovery does not also have sophisticated technology to heat-treatment medium, have report to introduce a spade factory to be: certain density washing tail water is pooled to airing in the open-air airing pond, treats that moisture evaporation is added in the media slot to the crystalline state to reuse again to the method that medium reclaim to adopt.The weak point of this recovery method is:
1. wash tail water unrestrained polluting in transit;
2. airing process is limited by natural condition, and overcast and rainy, snow a day normally airing, particularly heavy rain cause airing pond medicine company to overflow easily and then produce the environmental pollution second time when taking place;
3. need to establish the special messenger and be responsible for transportation, airing, measurement concentration etc., cost recovery is higher.
Research and develop the device and the recovery method of spade production thermal treatment recovering medium, in order to the protection environment, the cry of increasing economic efficiency is ready to appear for this reason.
Summary of the invention
The objective of the invention is deficiency at existing spade heat-treatment medium retrieving arrangement and recovery method, one provides a kind of spade heat-treatment medium retrieving arrangement simple in structure, and two provide and a kind ofly use this device and utilize the waste heat of the process furnace that the spade production process uses to heat-treat the method that medium reclaims.This device and method has been realized closed cycle, zero discharge of industrial waste water.
Realize the foregoing invention purpose by the following technical solutions:
A kind of spade heat-treatment medium retrieving arrangement comprises conveyor chain and spray equipment in the workpiece washing device, also comprises salt bath, dissolves and washes away chamber, immersion dilution trap, clear water spray chamber and three grades of cooling ponds,
A. described salt bath is the thermal treatment isothermal quenching groove that nitrate is housed, the described chamber that dissolves and washes away, soak dilution trap, clear water spray chamber three is down the setting of " product " font, the clear water spray chamber communicates with the immersion dilution trap, the described bottom that dissolves and washes away the chamber, soak dilution trap and be provided with washing tail water posticum successively near the top that dissolves and washes away chamber one side, clean the tail water posticum, described washing tail water posticum is connected with washing tail water recovery tube, cleaning the tail water posticum is connected with cleaning tail water recovery tube, washing tail water recovery tube, cleaning the tail water return water pipe communicates with one-level recovery pond respectively, described spray equipment places the top of conveyor chain, and this conveyor chain is positioned at salt bath, dissolve and wash away the chamber, soak dilution trap, the top of clear water spray chamber;
B. described three grades of cooling ponds are reclaimed pond, secondary recovery pond and three grades of recovery ponds by one-level and are formed, be located at below ground, wherein one-level recovery pond communicates with the secondary recovery pond, the secondary recovery pond communicates with three grades of recovery ponds, be provided with buoyancy tank in three grades of recovery ponds, water pump is installed in the buoyancy tank, and this water pump is communicated with the heating fire door that uses in pipeline and the spade production process.
A kind of method with spade heat-treatment medium retrieving arrangement recovering medium, described heat-treatment medium is a nitrate, its recovery method carries out according to following step:
A. salt bath: work piece hoisting on conveyor chain, is at first entered in the salt bath that nitrate is housed, workpiece is heat-treated isothermal quenching with nitrate;
B. first step washing: will heat the water after the intensification in the fire door and cause the workpiece of heat water-spraying's device after with induction pipe and carry out the first step in the chamber of dissolveing and washing away and dissolve cleaning to the thermal treatment means of isothermal quenching, this heat water-spraying's device places the top that dissolves and washes away the chamber, and the washing tail water after dissolveing and washing away flows into one-level recovery pond from the posticum that dissolves and washes away the bottom, chamber and lowers the temperature naturally;
C. second stage washing: the workpiece after the chamber of dissolveing and washing away dissolves and washes away enters and soaks dilution trap immersion dilution, soaks the dilution back and by the automatic transport chain workpiece is delivered to the clear water spray chamber;
D. third stage washing: the clear water that sprays indoor trace at clear water carries out drip washing with vaporific form to workpiece with the clear water shower nozzle, the contrary workpiece traffic direction of the flow direction of spray tail water backflows to soaking dilution trap, reclaims pond spontaneous combustion cooling by the tail water water outlet that soaks dilution trap to one-level;
E. cleaning tail water enters one-level and reclaims after the pond lowers the temperature naturally, the through hole that is reclaimed basin bottom by one-level slowly flows into the secondary recovery pond, after continuing the nature cooling, through hole through the secondary recovery basin bottom slowly flows into three grades of recovery ponds, cleaning tail water concentration is progressively reduced, when cleaning tail water concentration reaches relative saturation, along with reducing naturally of temperature, just having crystallisate in the recovery pond separates out, after crystallisate dries again row utilize, the water of three grades of pond for recoverings with water pump be drawn to the heating fire door heat up the back unsaturated solution, possessed the ability of dissolveing and washing away once more, deliver to by induction pipe and to dissolve and wash away the chamber and workpiece is sprayed dissolve and wash away recycle.
Compared with prior art, this apparatus structure design science makes full use of the waste heat of process furnace, and is not only easy to operate, and save energy.Reduced production cost.Whole technological process adopts the mode of closed cycle, has accomplished zero discharge of industrial waste water, pollution-free protection environment.Whole process water amount is little, and three grades of vaporific sprays of micro-clear water can either cleaning workpiece, has replenished the water evaporation amount in one-level heat water-spraying's process again, and the unnecessary water yield is returned three grades reclaim in the ponds and carry out closed cycle.Summer, magnitude of recruitment was big slightly, and winter, magnitude of recruitment was low slightly, but can satisfy arts demand substantially, had only replenishing of the new water yield and did not have remaining discharging.Adopt heat water-spraying's mode, make cleaning process produce the water evaporation part water yield, the temperature of thermal treatment isothermal quenching is utilized workpiece about 350 degree waste heat is the evaporation section water yield also, guarantees to have reached waste water and does not discharge.The medium that reclaims can utilize once more, is applicable to various medium-sized and small enterprises.
Description of drawings
Fig. 1 is a structural representation of the present invention, also is processing method schematic flow sheet of the present invention.
Among the figure, induction pipe 1, salt bath 2, hot-water nozzle 3, clear water shower nozzle 4 dissolves and washes away chamber 5, and washing tail water recovery tube 6 is cleaned tail water recovery tube 7, soak dilution trap 8, clear water spray chamber 9, one-level reclaims pond 10, through hole 11, secondary recovery pond 12, the second through holes 13, crystallization 14, three grades are reclaimed pond 15, water pump 16, buoyancy tank 17, drinking-water pipe 18, automatic transport chain 19, process furnace 20.
Embodiment
Below in conjunction with drawings and Examples in detail the present invention is described in detail.
Heat-treatment medium retrieving arrangement in the present embodiment is divided into salt bath, cleaning and recovery three parts.Referring to accompanying drawing 1, automatic transport chain 17 is suspended on salt bath 2, the top of dissolve and wash away chamber 5, soaking dilution trap 8, clear water spray chamber 9, the top that dissolves and washes away chamber 5, clear water spray chamber 9 is provided with the passage that passes for conveyor chain 19 operations, and the workpiece spade is laterally hung on automatic transport chain 17.Washing unit is formed by dissolveing and washing away chamber 5, immersion dilution trap 8 and clear water spray chamber 9, lays respectively at the top that dissolves and washes away chamber 5 and clear water spray chamber 9 according to the order of sequence by hot-water nozzle 3 and clear water shower nozzle 4 spray equipments that form, that be used to clean, places the top of automatic transport chain 19.Wherein hot-water nozzle 3 is communicated with induction pipe 1, and induction pipe 1 is communicated with heating fire door 20.Cleaning water shower nozzle 4 is communicated with tap water.
The salt bath 2 of filling nitrate is the grooves of workpiece being heat-treated isothermal quenching.Dissolve and wash away chamber 5, soak dilution trap 8, clear water spray chamber 9 threes are down the setting of " product " font, dissolve and wash away chamber 5, clear water spray chamber 9 is higher than immersion dilution trap 8, wherein clear water spray chamber 9 communicates with immersion dilution trap 8.In the bottom that dissolves and washes away chamber 5, soak dilution trap 8 and have for the effusive posticum of washing tail water near upper lateral parts that dissolve and wash away chamber 5.The posticum that wherein dissolves and washes away chamber 5 connects washing tail water recovery tube 6, and the posticum that soaks dilution trap 8 connects cleaning tail water recovery tube 7.
Retrieving arrangement is made up of three grades of heat sinks, sees Fig. 1, and three grades of heat sinks reclaim pond 10, secondary recovery pond 12 and three grades of recovery ponds 15 by one-level and form.One-level recovery pond 10, secondary recovery pond 12 and three grades of recovery ponds 15 are coaxially set and are embedded in below ground.Wherein one-level reclaims between pond 10 and the secondary recovery pond 11 and is provided with through hole 11, by through hole 11 both is communicated.Be provided with second through hole 13 between secondary recovery pond 11 and three grades of recovery ponds 15, by second through hole 13 secondary recovery pond 11 communicated with three grades of recovery ponds 15, the through hole 11 and second through hole 13 are positioned on the straight line.Lay water pump 16 in the water in three grades of recovery ponds 15, water pump 16 is installed in the buoyancy tank 17 and is flexible coupling with buoyancy tank 17.Three grades of sides that reclaim ponds 15 are provided with suction eye, and the drinking-water pipe 18 of water pump 16 is stretched out by suction eye and is connected with the heating fire door 20 that uses in the spade production process and communicates.Heating fire door 20 is the diffusing warm insulated doors of interbedded water, has current to pass through in its inner interlayer, realizes heat insulating function by the diffusing temperature of current
Use above-mentioned thermal treatment retrieving arrangement to utilize temperature difference principle to carry out medium and reclaim, comprise the method for purging method and recovering medium, step is:
Purging method:
1, salt bath: workpiece spade horizontal line is hung on automatic transport chain 17, delivered in the salt bath 4 of filling nitrate, in salt bath, the workpiece spade is heat-treated isothermal quenching with nitrate.
2, first step washing: will heat water that fire door 17 heats and lead to the hot-water nozzle 3 of heat water-spraying's device, and in dissolveing and washing away chamber 5, carry out the first step with the workpiece after 3 pairs of thermal treatment isothermal quenching of hot-water nozzle and dissolve hydro-peening with induction pipe 1.Hot water is sprayed on the surface of spade, makes nitrate that the spade surface covering along with cleaning is dissolved in the rising of temperature rapidly.Washing tail water after dissolving is cleaned passes back into the one-level that is positioned at its below and reclaims pond 10 and lower the temperature naturally to washing tail water recovery tube 6 from the washing tail water posticum that dissolves and washes away 5 bottoms, chamber.
3, second stage washing: sent into immersion dilution trap 8 by automatic transport chain 17 through the workpiece that dissolves and washes away after chamber 5 dissolves and washes away, soak in the dilution trap 8 and fill clear water, workpiece is immersed in to soak in the dilution trap 8 and carries out soaking and washing about 3 minutes, with clear water the thing that covering that workpiece carries out the surface is diluted, by automatic transport chain 19 workpiece is mentioned from soak dilution trap 8 then, deliver to clear water spray chamber 9 and carry out third stage washing.
4, third stage washing: the clear water with trace in clear water spray chamber 9 carries out final spray irrigation with vaporific form to workpiece with clear water shower nozzle 4, the water source of spray is from tap water, the contrary workpiece traffic direction of the flow direction of spray tail water, because being higher than, clear water spray chamber 9 soaks dilution trap 8, cause spray tail water to backflow to soaking dilution trap 8, flow into cleaning tail water recovery tube 7 to one-level by the water outlet that soaks dilution trap 8 and reclaim pond 10 coolings by the bottom of clear water spray chamber 9.
The method of recovering medium:
Because three holes of reclaiming basin bottom communicate, all to wash tail water, clean tail water and all import one-level and reclaim pond 10, and reclaim pond 10 by one-level and reclaim ponds 15 to three grades and flow naturally, its temperature is reduction step by step thereupon also.Tail water is extracted by third stage pond, because the drinking-water pipe 18 of water pump 16 constantly reclaims pond 15 from three grades and draws water, wash tail water simultaneously, clean tail water and constantly flow into one-level recovery pond 10 respectively from two recovery tube, in three pond for recoverings, form pressure reduction, cause from washing tail water recovery tube 6, clean tail water recovery tube 7 effusive washing tail water, clean tail water and enter 10 coolings of one-level recovery pond, the through hole 11 that is reclaimed 10 bottoms, pond by one-level slowly flows into secondary recovery pond 12, naturally cooling, second through hole 13 through the secondary recovery basin bottom slowly flows into three grades of recovery ponds 15, washing tail water is progressively lowered the temperature and is cooled to the crystalline temperature, when the salt made from earth containing a comparatively high percentage of sodium chloride concentration in the pond for recovering water acquires a certain degree when above (washing water concentration reach 40%), progressively reduction along with temperature, the bottom of reclaiming the pond just has crystallisate to separate out, and separates out at most three grades of bottom crystallizations 14 of reclaiming pond 15.With the salt medium crystallisate pull out reclaim dry after again row utilize, the water in three grades of recovery ponds 15 is drawn to water pump 16 and has become unsaturated solution again after heating fire door 20 heats up, possessed the ability of dissolveing and washing away once more, delivered to by induction pipe 1 and dissolve and wash away the 5 pairs of workpiece in chamber and spray and dissolve and wash away, so recycle.Whole technological process closed cycle of the present invention does not have discharge of wastewater.
More than disclosed only be specific embodiments of the invention; though the present invention discloses as above with preferred embodiment; but the present invention is not limited thereto; any those skilled in the art can think variation; in not breaking away from design philosophy of the present invention and scope; the present invention is carried out various changes and retouching, all should drop within protection scope of the present invention.
Claims (3)
1. a spade heat-treatment medium retrieving arrangement comprises conveyor chain and spray equipment in the workpiece washing device, it is characterized in that, also comprises salt bath, dissolves and washes away chamber, immersion dilution trap, clear water spray chamber and three grades of cooling ponds,
A. described salt bath is the thermal treatment isothermal quenching groove that nitrate is housed, the described chamber that dissolves and washes away, soak dilution trap, the clear water spray chamber is down the setting of " product " font, the clear water spray chamber communicates with the immersion dilution trap, the described bottom that dissolves and washes away the chamber, soak dilution trap and be provided with washing tail water posticum successively near the top that dissolves and washes away chamber one side, clean the tail water posticum, described washing tail water posticum is connected with washing tail water recovery tube, cleaning the tail water posticum is connected with cleaning tail water recovery tube, washing tail water recovery tube, cleaning the tail water return water pipe communicates with one-level recovery pond respectively, described spray equipment places the top of conveyor chain, and this conveyor chain is positioned at salt bath, dissolve and wash away the chamber, soak dilution trap, the top of clear water spray chamber;
B. described three grades of cooling ponds are reclaimed pond, secondary recovery pond and three grades of recovery ponds by one-level and are formed, be located at below ground, wherein one-level recovery pond communicates with the secondary recovery pond, the secondary recovery pond communicates with three grades of recovery ponds, be provided with buoyancy tank in three grades of recovery ponds, water pump is installed in the buoyancy tank, and this water pump is communicated with the heating fire door that uses in draw water pipeline and the spade production process.
2. a spade heat-treatment medium retrieving arrangement is characterized in that, described spray equipment comprises hot-water nozzle and clear water shower nozzle.
3. method with spade heat-treatment medium retrieving arrangement recovering medium, described heat-treatment medium is a nitrate, it is characterized in that, its recovery method carries out according to following step:
A. salt bath: work piece hoisting on conveyor chain, is at first entered in the salt bath that nitrate is housed, workpiece is heat-treated isothermal quenching with nitrate;
B. first step washing: will heat the water after the intensification in the fire door and cause the workpiece of heat water-spraying's device after with induction pipe and carry out the first step in the chamber of dissolveing and washing away and dissolve cleaning to the thermal treatment means of isothermal quenching, this heat water-spraying's device places the top that dissolves and washes away the chamber, and the washing tail water after dissolveing and washing away flows into one-level recovery pond from the posticum that dissolves and washes away the bottom, chamber and lowers the temperature naturally;
C. second stage washing: the workpiece after the chamber of dissolveing and washing away dissolves and washes away enters and soaks dilution trap immersion dilution, soaks the dilution back and by the automatic transport chain workpiece is delivered to the clear water spray chamber;
D. third stage washing: the clear water that sprays indoor trace at clear water carries out drip washing with vaporific form to workpiece with the clear water shower nozzle, the contrary workpiece traffic direction of the flow direction of spray tail water backflows to soaking dilution trap, reclaims pond spontaneous combustion cooling by the tail water water outlet that soaks dilution trap to one-level;
E. cleaning tail water enters one-level and reclaims after the pond lowers the temperature naturally, the through hole that is reclaimed basin bottom by one-level slowly flows into the secondary recovery pond, after continuing the nature cooling, through hole through the secondary recovery basin bottom slowly flows into three grades of recovery ponds, cleaning tail water temperature is progressively reduced, when cleaning tail water concentration reaches relative saturation, along with reducing naturally of temperature, just having crystallisate in the recovery pond separates out, row utilization again after crystallisate dries, the water of three grades of pond for recoverings with water pump be drawn to the heating fire door heat up the back unsaturated solution, deliver to by induction pipe and to dissolve and wash away the chamber and workpiece is sprayed once more dissolve and wash away recycle.
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| CN2010101504977A CN101812569B (en) | 2010-04-17 | 2010-04-17 | Spade heat-treatment medium recovering device and method for recovering medium using the device |
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| CN2010101504977A CN101812569B (en) | 2010-04-17 | 2010-04-17 | Spade heat-treatment medium recovering device and method for recovering medium using the device |
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| CN101812569B CN101812569B (en) | 2011-04-20 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103432805A (en) * | 2013-09-09 | 2013-12-11 | 唐山舒适五金工具制造有限公司 | Steel spade heat treatment liquid recovery furnace and recovery method |
| CN104178606A (en) * | 2013-05-23 | 2014-12-03 | 上海颐柏热处理设备有限公司 | Afterheat recycling device of box type isothermal quenching furnace |
| 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 |
| CN109295291A (en) * | 2017-07-25 | 2019-02-01 | 乐亭县铸升金属制品厂 | A kind of production technology of non-oxidation steel shovel |
| CN115418455A (en) * | 2022-09-20 | 2022-12-02 | 唐山市军桥五金工具制造有限公司 | Spade head quenching equipment |
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| CN2160454Y (en) * | 1992-11-05 | 1994-04-06 | 冶金工业部重庆钢铁设计研究院 | Device for recovering quenching cool water |
| US5846501A (en) * | 1996-04-13 | 1998-12-08 | Durferrit Gmbh Thermotechnik | Process for the selective recovery of the salt constituents from used hardening shop salts which contain nitrite-nitrate |
| CN101298636A (en) * | 2008-06-19 | 2008-11-05 | 广东世创金属科技有限公司 | Heat treatment spent liquor salt recovery processing method and apparatus |
| CN101412506A (en) * | 2008-11-28 | 2009-04-22 | 唐山市燕南制锹有限公司 | Apparatus and method for cleaning and recovering heat treatment medium |
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2010
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Patent Citations (4)
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| CN2160454Y (en) * | 1992-11-05 | 1994-04-06 | 冶金工业部重庆钢铁设计研究院 | Device for recovering quenching cool water |
| US5846501A (en) * | 1996-04-13 | 1998-12-08 | Durferrit Gmbh Thermotechnik | Process for the selective recovery of the salt constituents from used hardening shop salts which contain nitrite-nitrate |
| CN101298636A (en) * | 2008-06-19 | 2008-11-05 | 广东世创金属科技有限公司 | Heat treatment spent liquor salt recovery processing method and apparatus |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104178606A (en) * | 2013-05-23 | 2014-12-03 | 上海颐柏热处理设备有限公司 | Afterheat recycling device of box type isothermal quenching furnace |
| CN103432805A (en) * | 2013-09-09 | 2013-12-11 | 唐山舒适五金工具制造有限公司 | Steel spade heat treatment liquid recovery furnace and recovery method |
| 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 |
| CN109295291A (en) * | 2017-07-25 | 2019-02-01 | 乐亭县铸升金属制品厂 | A kind of production technology of non-oxidation steel shovel |
| CN115418455A (en) * | 2022-09-20 | 2022-12-02 | 唐山市军桥五金工具制造有限公司 | Spade head quenching equipment |
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| CN101812569B (en) | 2011-04-20 |
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