CN200977514Y - Drum-type multi-station oil removing and phosphorus removing device for surface of working pieces - Google Patents
Drum-type multi-station oil removing and phosphorus removing device for surface of working pieces Download PDFInfo
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- CN200977514Y CN200977514Y CN 200620048627 CN200620048627U CN200977514Y CN 200977514 Y CN200977514 Y CN 200977514Y CN 200620048627 CN200620048627 CN 200620048627 CN 200620048627 U CN200620048627 U CN 200620048627U CN 200977514 Y CN200977514 Y CN 200977514Y
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- dephosphorization
- cylinder
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Abstract
A roller type multi-position deoiling and phosphorus removing device used for the surface of a work piece, which comprises a twisting roller, a storage tank, a driving device, a sprinkler system, a circulating filter device, a heating and drying system, and a waste gas reclaiming machine, wherein the roller is supported by two supporting rings, the two supporting rings are placed on the contact roller seat of the storage tank which is directly arranged on four contact roller, and the storage tank is arranged on the base frame; the driving device is arranged under the roller and the storage tank; the sprinkler inline pumps of the four sprinkler system are connected to the correspondent places of the roller from the storage tank and by each of the inline pumps respectively; a filter net is arranged respectively at the liquid fetcher of the oil removing sprinkler pipe equipped on the sprinkler system and the liquid inlet of the deoiling machine, the circulation is done through the pump by the circulating filter device; the heating and drying system is arranged on the side part of the roller; the waste gas reclaiming machine is arranged on the separator plate between the deoiling machine and the phosphorus removal plant, the waste gas of the phosphorus removal plant is led into the deoiling liquid by the induced draft fan of the waste gas reclaimation. The utility is suitable for the continuous cleaning of the bulk fastening piece, the cleaning speed is fast and reducing the work intensity.
Description
Technical field
The utility model relates to the preceding cleaning device of standard component heat treatment, the oil removing of particularly a kind of drum-type multistation surface of the work, dephosphorization apparatus.
Background technology
Securing member such as bolt, screw is the part of manufacturing extensive use, the normal technical process such as cold-drawn, punch forming that adopt in its manufacture process, because the first raw material of dish has adopted phosphorous kollag in Cold Drawing Process, therefore after processing and forming such as bolt, the residual phosphide of its surface meeting, to have influence on the intensity and the flexibility of bolt after Overheating Treatment, for high-strength bolt, its influence is particularly evident.According to the pertinent regulations of country: " consider and bear tension stress that 12.9 grades surface does not allow the white phosphorus Guinier-Preston zone that metallographic can be measured about " securing member mechanical performance: bolt, screw and double-screw bolt "." still do not have the oil removing of effective multistation drum-type at present, dephosphorization apparatus is applied to the product such as heat treatment automatic assembly lines such as meshbeltfurnaces.
Summary of the invention
The purpose of the utility model technical solution problem is to provide the oil removing of a kind of drum-type multistation surface of the work, dephosphorization apparatus, this device has the spray liquid mutually noninterfere of each continuous station of cylinder, effectively isolation, is separately installed with fluid level controller and fluid infusion system in each cell body of hopper; Be fit to large batch of miniature parts continous way and clean, cleaning speed is fast, and the cleannes height can reduce labour intensity.
For reaching above-mentioned purpose, the technical scheme of the utility model technical solution problem is: comprise drum apparatus, oil storage tank and underframe three parts, wherein, the oil removing of described drum-type multistation surface of the work, dephosphorization apparatus, form by spiral cylinder, hopper, transmission device, spray system, circulation filter, heating drying system and waste gas recovering device, wherein, cylinder is supported by two support rings, support ring is placed on that on-line equipment is on the roller mount at hopper top on the four rolling, and hopper is contained on the underframe; Transmission device is arranged on cylinder and hopper below: spray system has quadruplet, four spray piping pumps respectively from hopper the tubing pump by separately be connected to corresponding position in the cylinder; Circulation filter is that the inlet in the liquid taking port of the oil removing spray piping of spray system and oil removal machine oil removing is equipped with filter screen, and circulates by pump; Heating drying system is installed in the cylinder sidepiece; Waste gas recovering device is installed on the dividing plate of degreasing tank and dephosphorization groove, reclaims air-introduced machine by waste gas dephosphorization waste gas is guided in the degreasing fluid.
Superior effect of the present utility model is: greasy dirt that this device can depend on surface of the work and phosphating coat carry out multistation continuous operations such as oil removing, dephosphorization, clear water spray and oven dry, reach the purpose of best cleaning, oil removing, dephosphorization; Be applicable to large batch of miniature parts continous way cleaning, cleaning speed is fast, reduces labour intensity.
Description of drawings
Fig. 1 is the utility model structural profile schematic diagram.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is a vertical view of the present utility model.
Fig. 4 is a cylinder profile of the present utility model.
Label declaration in the accompanying drawing
1-cylinder 2-degreasing tank 3-case
4-oil removing playpipe 5-dephosphorization playpipe 6-dephosphorization groove
7-cleans playpipe () 8-rinse bath () 9-and cleans playpipe (two)
10-rinse bath (two) 11-rotates hinge wheel 12-heating tube
13-support 14-feed hopper 15-is dried blower fan
16-roller 17-driving chain 18-tightener sprocket
19-sprocket for main drive 20-reductor 21-roller mount
22-blowoff valve 23-fluid level controller 24-circulating pump
25-oven dry guide duct 26-heating cabinet 27-cleans spray pump (two)
28-cleans spray pump () 29-fluid level controller 30-fluid infusion pump
31-waste gas reclaims air-introduced machine 32-dephosphorization spray pump 33-waste gas recovering device
34-oil removal machine 35-oil removing spray pump 36-support ring (one)
The anti-batch mixing plate 38-simply supported beam 39-oven dry of 37-air guide hole
40-support ring (two) 41-spiral plate 42-isolates spiral plate
The specific embodiment
Below in conjunction with accompanying drawing structure of the present utility model is further described.
See also shown in Fig. 1～4, the utility model is made up of spiral cylinder 1, hopper, transmission device, spray system, circulation filter, heating drying system and waste gas recovering device 33.Wherein, described cylinder 1 is core of the present utility model, and its structure is the continuous multistation formula (seeing shown in Figure 1) of straight tube.
In order to isolate the interference of mutual station spray liquid, installed isolation spiral plate 42 in the cylinder 1, cylinder 1 is divided into five parts, be oil removing section, dephosphorization section, cleaning section (), cleaning section (two), oven dry, this isolation spiral plate 42 conveying workpieces reliably can effectively be isolated the interference of mutual station spray liquid again.
Have a considerable amount of apertures at cylinder 1 each section, so that four kinds of different spray liquids are flowed back to respectively in corresponding four hoppers.
Because dephosphorization liquid Main Ingredients and Appearance is a NaOH, cylinder 1 adopts stainless steel material to make, to improve anti-corrosive properties; Cylinder 1 adopts 304 thick corrosion resistant plates of 2mm to be made, and for satisfying the requirement of strength of its large span, has added plurality of strengthening ribs to improve its bending strength in cylinder 1 inside.
Respectively corresponding each the station section of four groups of sparge pipes is equipped with in cylinder 1 inside, because cylinder 1 is longer, for adapting to the installation of each sparge pipe, run through a simply supported beam 38 of making and added reinforcement by seamless steel pipe in cylinder 1 inside, its two ends are separately fixed on the fixed support 13 at oil storage tank two ends, at simply supported beam 38 1 ends corresponding to the heating drying system section, utilize the through hole of simply supported beam seamless pipe to cross the oven dry of directly jetting of its oven dry air guide hole 39 pairs of workpiece through the scorching hot air communication after the heating, four groups of above-mentioned showers then import (see figure 1) respectively from cylinder 1 two ends, be installed on the below of simply supported beam 38.
Install the fastener products that handled workpiece objects mostly is all size greatly by this, when producing in batches, batch mixing is to avoid greatly, for fear of after changing product specification, these workpiece can fall into the top of simply supported beam 38, after changing product specification, these workpiece that drop on simply supported beam 38 tops fall again and cause batch mixing, therefore, the utility model has installed anti-batch mixing plate 37 structures of " people " font additional above simply supported beam 38, and effect is remarkable.
Described hopper is a critical piece of the present utility model, its cell body mainly is divided into four liquid baths, be degreasing tank 2, dephosphorization groove 6, rinse bath () 8, rinse bath (two) 10, correspond respectively to the correspondence position of oil removing section on the cylinder 1, dephosphorization section, cleaning section (), cleaning section (two).Four liquid bath bottoms blowoff valve 22 is housed respectively; Be separately installed with fluid level controller 23 and fluid infusion system in each cell body of hopper.
Described degreasing tank 2, the about 2.2m of the volume of groove
3Placed degreasing fluid in the degreasing tank 2, the liquid temperature control is about 60 ℃ in the groove, oil slick above the degreasing fluid carries out oil removing and collection by oil water separator (swash plate oil removing) and two degreasing units through oil trap respectively with the overflow mode, and it is recycling to return main degreasing tank by the liquid after oil water separator and the oil removal machine oil removing by the circulating pump 24 of 0.18kw.
Described dephosphorization groove 6, the about 2.7m of the volume of groove
3Place about 80 ℃ concentrated alkali solution in the dephosphorization groove 6, the workpiece in the swing roller 1 is soaked and powerfully dashes spray, reached the purpose of removing the phosphorous adhesion layer that surface of the work adheres in conjunction with the effect of 1 pair of workpiece swing of cylinder simultaneously.In order to guarantee phosphor-removing effect, concentration of lye must be analyzed once every day, and in time replenishes alkali number.For this reason, this groove is provided with the fluid infusion pump 30 that replenishes concentrated base liquid, also can manual mode directly add solid base to adjust concentration of lye.
Described rinse bath () 8, the function of this groove are mainly alkali lye that surface of the work adheres to the first spray irrigation of hot water, for workpiece is carried out the preparation that further removal contains alkaloid substance before entering once more the clear water spray groove.The about 1.3m of rinse bath volume
3This groove is equipped with clear water and thermocouple, water temperature is controlled at about 80 ℃, because the workpiece that is cleaned in the cylinder 1 has certain dephosphorization liquid after soaking hydro-peening by dephosphorization, after cleaning fluid flows back to this rinse bath behind this station immersion hydro-peening, make the cleaning fluid in the groove that certain dephosphorization liquid composition be arranged, soak hydro-peening so this station is also referred to as weak base, soak hydro-peening by weak base the effect of dephosphorization is further improved.
Described rinse bath (two) 10, clear water spray groove are last one matting of cleaning before the workpiece, and it is clean with the workpiece spray of de-oiling dephosphorization.Rinse bath (two) 10 volumes are about 1.3m
3, the liquid temperature is about 40 ℃.
Because oil removing, dephosphorization, cleaning all need to carry out at a certain temperature, so in each cell body of hopper heating system is set respectively.
Heating system is made up of special heating tube 12 and control-temperature electric heating idol, and heating tube 12 1 ends are threaded, and being fixed by nut is connected in a side in each cell body of hopper, is heated to temperature required in the heating tube 12 direct immersion cleaning fluids to cleaning fluid; Heating tube 12 is by temperature-control heat couple control stablizing with the maintenance rinse liquid temperature.
Each cell body sidepiece is equipped with thermal insulation layer to be used for being incubated and preventing to scald operating personnel.
Be separately installed with fluid level controller 23 and fluid infusion system in each cell body of hopper to guarantee this device operate as normal.
Described transmission device adopts mechanical stepless to slow down and the chain kind of drive, and transmission device is arranged on cylinder 1 below.Transmission device is joined secondary cycloid speed reducer 20 (translator), sprocket for main drive 19, driving chain 17, rotation hinge wheel 11 and tightener sprocket 18 by the MB speed changer and is formed.The rotation of cylinder 1 is joined secondary cycloid speed reducer 20 deceleration backs by the rotation of 1.1kw threephase asynchronous by the MB speed changer and is sent power to rotation hinge wheel 11 by sprocket for main drive 19 by driving chain 17, and rotation hinge wheel 11 drives cylinder 1 again and rotates.Transmission device of the present utility model can carry out stepless speed regulation.
Described spray system has quadruplet, four groups of spray pipings and pump are equipped with oil removing spray pump 35, dephosphorization spray pump 32 respectively, clean spray pump () 28, clean spray pump (two) 27 on the bottom underframe of degreasing tank 2, dephosphorization groove 6, rinse bath () 8, rinse bath (two) 10; The entrance point of pump is connected with the corresponding cell body of hopper one side with pipeline, the delivery side of pump end is connected to towards cylinder 1 interior corresponding oil removing playpipe 4 with pipeline, dephosphorization playpipe 5, clean playpipe () 7, clean the fan nozzle of playpipe (two) 9, degreasing tank from the oil storage tank groove 2 respectively, dephosphorization groove 6, rinse bath (one) 8, rinse bath (two) 10 the insides extract liquid and the pipeline by separately is transported to corresponding workshop section in the cylinder 1, by spray head plurality of sector nozzle liquid are reached oil removing with certain pressure injection to workpiece again, the purpose of dephosphorization and cleaning.
Described circulation filter, be for the cleaning that guarantees spray liquid and prevent spray system at work fan nozzle stopped up by foreign material.Prepared filter screen respectively at the liquid taking port of oil removing spray piping pump and the inlet of swash plate oil removing and oil removal machine 34 oil removings, screen pack can clean at any time.For the swash plate oil removing and oil removal machine 34 oil removings that make degreasing tank are normally carried out, be provided with circulating pump 24 by liquid level control at an end of degreasing tank, its effect is to make degreasing fluid can enter swash plate degreasing tank and oil removal machine 34 groove oil removings smoothly and will send back in the degreasing tank major trough through the degreasing fluid of oil removal treatment.
Described heating drying system is the last part of this device, and its critical piece is the heater that is provided with 45kw, and its temperature is controlled between 120 ℃～150 ℃, and the workpiece of drying directly enters material distributing machine by hopper.
Heating drying system comprises oven dry blower fan 15, heating cabinet 26 and oven dry guide duct 25; Heating cabinet 26 is located at cylinder 1 sidepiece, heating tube 12 is equipped with in inside, oven dry blower fan 15 is sent air into heating cabinet 26 heating, special drying air guide hole 39 sprays to workpiece to scorching hot air-flow drying guide duct 25 after the heating in the simply supported beam 38 by being installed in again, as far as possible will be attached to the purpose that water liquid is got rid of or vaporization is dry of surface of the work to reach.
Described waste gas recovering device, be because dephosphorization liquid can produce a large amount of gases in heating process, be provided with in order to effectively utilize and to prevent to pollute, be installed on the dividing plate of degreasing tank 2 and dephosphorization groove 6, reclaim air-introduced machine 31 by waste gas the waste gas in the dephosphorization groove 6 is guided in the degreasing fluid; This technology also is one of core of the present utility model.The dusty gas that produces in the dephosphorization process is reclaimed air-introduced machine 31 by waste gas pour in the degreasing fluid, allow it fully absorb the pollution that prevents environment, this method is simple in structure, and input cost is little, and effect is remarkable.
At last case 3 is connected with the oil storage tank top.
Claims (9)
1, a kind of drum-type multistation surface of the work oil removing, dephosphorization apparatus, comprise drum apparatus, oil storage tank and underframe, it is characterized in that: the oil removing of described drum-type multistation surface of the work, dephosphorization apparatus, form by spiral cylinder, hopper, transmission device, spray system, circulation filter, heating drying system and waste gas recovering device, wherein, cylinder is supported by two support rings, support ring is placed on that on-line equipment is on the roller mount at hopper top on the four rolling, and hopper is contained on the underframe; Transmission device is arranged on cylinder and hopper below; Spray system has quadruplet, four spray piping pumps respectively from hopper the tubing pump by separately be connected to corresponding position in the cylinder; Circulation filter is that the inlet in the liquid taking port of the oil removing spray piping of spray system and oil removal machine oil removing is equipped with filter screen, and circulates by pump; Heating drying system is installed in the cylinder sidepiece; Waste gas recovering device is installed on the dividing plate of degreasing tank and dephosphorization groove, reclaims air-introduced machine by waste gas dephosphorization waste gas is guided in the degreasing fluid.
2, drum-type multistation surface of the work according to claim 1 oil removing, dephosphorization apparatus, it is characterized in that: described cylinder, spiral plate is housed in the cylinder and isolates spiral plate, cylinder is divided into oil removing section, dephosphorization section, cleaning section (), cleaning section (two) and oven dry five parts, have a considerable amount of apertures at each section of cylinder, so that four kinds of different spray liquids are flowed back to respectively in corresponding four hoppers; Run through a simply supported beam of making and added reinforcement by seamless steel pipe in cylinder inside, the anti-batch mixing plate of " people " font is equipped with in the simply supported beam top, its two ends are separately fixed on the fixed support at oil storage tank two ends, and four showers import from the cylinder two ends respectively, are installed on the below of simply supported beam.
3, drum-type multistation surface of the work according to claim 1 oil removing, dephosphorization apparatus, it is characterized in that: described hopper, cell body is divided into degreasing tank, dephosphorization groove, rinse bath (), rinse bath (two), four liquid baths correspond respectively to the correspondence position on the cylinder, four liquid baths bottoms blowoff valve are housed respectively; Be separately installed with fluid level controller and fluid infusion system in each cell body of hopper.
4, according to claim 1 or 3 described drum-type multistation surface of the work oil removings, dephosphorization apparatus, it is characterized in that: described degreasing tank, placed degreasing fluid in the degreasing tank, and oil water separator is housed and scrapes the oil removing device and collect oil removing, liquid after oil removing, it is recycling to return degreasing tank through water circulating pump again.
5, according to claim 1 or 3 described drum-type multistation surface of the work oil removings, dephosphorization apparatus, it is characterized in that: described dephosphorization groove, the dephosphorization groove is placed with concentrated alkali solution, and device has the fluid infusion pump to replenish concentrated base liquid, or with manually directly adding solid base to adjust concentration of lye; Be provided with two auxiliary liquid box in the dephosphorization groove, one stores high alkali liquid, and one stores weak lye meets concentration requirement with preparation dephosphorization liquid; Be provided with settler in cell body, bottom land is provided with sewage draining valve.
6, according to claim 1 or 3 described drum-type multistation surface of the work oil removings, dephosphorization apparatus, it is characterized in that: in degreasing tank, dephosphorization groove, rinse bath (), rinse bath (two), be respectively arranged with heating system, heating system comprises special heating tube and control-temperature electric heating idol, be threaded at heating tube one end, being fixed by nut is connected in a side in each cell body of hopper, heating tube directly immerse be heated to cleaning fluid in the cleaning fluid temperature required; At each cell body sidepiece thermal insulation layer is housed.
7, drum-type multistation surface of the work according to claim 1 oil removing, dephosphorization apparatus, it is characterized in that: described transmission device, adopt mechanical stepless to slow down and the chain kind of drive, be arranged on the cylinder below, transmission device comprises that the MB speed changer wears the secondary cycloid speed reducer of motor, sprocket for main drive, driving chain, rotation hinge wheel and chain tensioning mechanism; In cylinder one end outer rim the rotation hinge wheel is housed, join the secondary cycloid speed reducer by the threephase asynchronous rotation after slowing down by the MB speed changer, by driving chain and tightener sprocket, send power to the rotation hinge wheel by sprocket for main drive, rotate hinge wheel and drive the cylinder rotation again; This transmission device can carry out stepless speed regulation.
8, drum-type multistation surface of the work according to claim 1 oil removing, dephosphorization apparatus, it is characterized in that: described spray system has quadruplet, four groups of spray pipings and pump are equipped with oil removing spray pump, dephosphorization spray pump respectively, clean spray pump (), clean spray pump (two) on the bottom underframe of degreasing tank, dephosphorization groove, rinse bath (), rinse bath (two); The entrance point of pump is connected with the corresponding cell body of hopper one side with pipeline, the fan nozzle injection that the delivery side of pump end is connected in the cylinder corresponding oil removing playpipe, dephosphorization playpipe, cleans the spray head of playpipe (), cleaning playpipe (two) with pipeline.
9, drum-type multistation surface of the work according to claim 1 oil removing, dephosphorization apparatus, it is characterized in that: described heating drying system, comprise oven dry blower fan, heating cabinet and oven dry guide duct, heating cabinet is loaded on the cylinder sidepiece, heating tube is equipped with in inside, heating cabinet one end connects the oven dry blower fan, and end is connected with the oven dry guide duct of the simply supported beam of centre of the drum by the oven dry guide duct in addition, and the oven dry air guide hole of scorching hot air-flow in cylinder sprays to workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620048627 CN200977514Y (en) | 2006-12-06 | 2006-12-06 | Drum-type multi-station oil removing and phosphorus removing device for surface of working pieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620048627 CN200977514Y (en) | 2006-12-06 | 2006-12-06 | Drum-type multi-station oil removing and phosphorus removing device for surface of working pieces |
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| CN200977514Y true CN200977514Y (en) | 2007-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200620048627 Expired - Lifetime CN200977514Y (en) | 2006-12-06 | 2006-12-06 | Drum-type multi-station oil removing and phosphorus removing device for surface of working pieces |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102283185A (en) * | 2011-06-10 | 2011-12-21 | 浙江海洋学院 | Long line fishing set take-up device |
| CN103305878A (en) * | 2013-06-28 | 2013-09-18 | 永兴县荣鹏金属有限公司 | Device for cleaning electrolytic lead cathode tube |
| CN103615880A (en) * | 2013-11-22 | 2014-03-05 | 广东美味鲜调味食品有限公司 | Method for maintaining and repairing sauce residue drying machine |
| CN103757654A (en) * | 2013-12-30 | 2014-04-30 | 河南星光机械制造有限公司 | High-efficiency barrel plating washing system |
| CN104353642A (en) * | 2014-11-27 | 2015-02-18 | 辽宁恒德磁业有限公司 | Material cleaning machine |
| CN103643245B (en) * | 2013-10-31 | 2017-02-15 | 湖北侨光石化装备股份有限公司 | Atomization acid-base comprehensive treatment tank |
| CN106768608A (en) * | 2016-12-21 | 2017-05-31 | 安徽天利粮油集团股份有限公司 | Dryer pressure monitoring device |
| CN108359911A (en) * | 2018-03-28 | 2018-08-03 | 浙江益宏不锈钢有限公司 | A kind of austenite stainless steel seamless steel tube and its preparation process |
| CN109261583A (en) * | 2018-08-13 | 2019-01-25 | 江苏天毅冷镦股份有限公司 | A kind of continuous drum oil removing system |
| CN113502481A (en) * | 2021-07-13 | 2021-10-15 | 南京睿源利信息科技有限公司 | Stainless steel surface treatment equipment and treatment process thereof |
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2006
- 2006-12-06 CN CN 200620048627 patent/CN200977514Y/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102283185A (en) * | 2011-06-10 | 2011-12-21 | 浙江海洋学院 | Long line fishing set take-up device |
| CN103305878B (en) * | 2013-06-28 | 2016-01-06 | 永兴县荣鹏金属有限公司 | The device of cleaning electrolytic lead cathode tube |
| CN103305878A (en) * | 2013-06-28 | 2013-09-18 | 永兴县荣鹏金属有限公司 | Device for cleaning electrolytic lead cathode tube |
| CN103643245B (en) * | 2013-10-31 | 2017-02-15 | 湖北侨光石化装备股份有限公司 | Atomization acid-base comprehensive treatment tank |
| CN103615880A (en) * | 2013-11-22 | 2014-03-05 | 广东美味鲜调味食品有限公司 | Method for maintaining and repairing sauce residue drying machine |
| CN103615880B (en) * | 2013-11-22 | 2015-04-22 | 广东美味鲜调味食品有限公司 | Method for maintaining and repairing sauce residue drying machine |
| CN103757654A (en) * | 2013-12-30 | 2014-04-30 | 河南星光机械制造有限公司 | High-efficiency barrel plating washing system |
| CN104353642A (en) * | 2014-11-27 | 2015-02-18 | 辽宁恒德磁业有限公司 | Material cleaning machine |
| CN106768608A (en) * | 2016-12-21 | 2017-05-31 | 安徽天利粮油集团股份有限公司 | Dryer pressure monitoring device |
| CN106768608B (en) * | 2016-12-21 | 2024-04-05 | 安徽天利粮油集团股份有限公司 | Dryer pressure monitoring device |
| CN108359911A (en) * | 2018-03-28 | 2018-08-03 | 浙江益宏不锈钢有限公司 | A kind of austenite stainless steel seamless steel tube and its preparation process |
| CN109261583A (en) * | 2018-08-13 | 2019-01-25 | 江苏天毅冷镦股份有限公司 | A kind of continuous drum oil removing system |
| CN113502481A (en) * | 2021-07-13 | 2021-10-15 | 南京睿源利信息科技有限公司 | Stainless steel surface treatment equipment and treatment process thereof |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090722 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |