CN114589306A - Powder metallurgy degreasing and oil discharging system - Google Patents
Powder metallurgy degreasing and oil discharging system Download PDFInfo
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- CN114589306A CN114589306A CN202111380822.3A CN202111380822A CN114589306A CN 114589306 A CN114589306 A CN 114589306A CN 202111380822 A CN202111380822 A CN 202111380822A CN 114589306 A CN114589306 A CN 114589306A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
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- 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
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Abstract
The invention discloses a powder metallurgy degreasing and oil discharging system which comprises a vacuum sintering furnace and a vacuum pump provided with a vacuum main pipe, wherein a first vacuum branch pipe communicated with the vacuum main pipe is arranged at the top of the vacuum sintering furnace, the system also comprises a first impurity discharging tank, the outer wall of the first impurity discharging tank is wrapped by a first jacket, a first accommodating cavity is arranged between the first jacket and the first accommodating cavity and connected with the bottom of the vacuum sintering furnace through a first impurity discharging pipe, a first impurity discharging port is arranged above the right side of the first impurity discharging tank, an oil spraying device is arranged above the first impurity discharging tank, a pipeline, contacting the first impurity discharging pipe and the first impurity discharging tank, is coiled on the outer wall of the first impurity discharging tank from top to bottom, the outlet end of the first impurity discharging tank is positioned below the inner part of the first impurity discharging tank, and the first impurity discharging port is connected with a second vacuum branch pipe communicated with the vacuum main pipe through a connecting pipe. The invention can avoid the phenomenon that oil enters the vacuum pump through the pipeline, reduce the degree of the vacuum pump polluted by impurities, prolong the service life of the vacuum pump and reduce the maintenance frequency of the vacuum pump.
Description
Technical Field
The invention relates to the technical field of powder metallurgy, in particular to a powder metallurgy degreasing and oil discharging system.
Background
Powder metallurgy is an industrial technology for preparing metal materials, composite materials and various products by using metal powder (or a mixture of metal powder and nonmetal powder) as a raw material, adding additives such as a forming agent, a lubricant, a pore-forming agent and the like, mixing the metal powder with the additives, forming and vacuum sintering the mixture. Powder metallurgy technology has been widely used in the fields of transportation, machinery, electronics, aerospace, weapons, biology, new energy, information, nuclear industry, etc., and has become one of the most active branches of new material science.
The vacuum sintering furnace is a furnace for protectively sintering a heated material in a vacuum environment, and the heating method is relatively many. The vacuum induction sintering furnace is complete equipment for sintering hard alloy tool bits and various metal powder pressed bodies by utilizing the principle of medium-frequency induction heating under the condition of vacuum or protective atmosphere, and is designed for industrial production of hard alloys, metal dysprosium and ceramic materials.
In the process of vacuum sintering in a vacuum sintering furnace, degreasing treatment is carried out on materials, additives are gradually gasified and gasified lipids are pumped out of the sintering furnace along with the suction of a vacuum pump along with the rise of the temperature in the furnace, and in the prior art, a plurality of devices for degreasing in the powder metallurgy process are provided, for example, the patent application No. CN201310235439.8 discloses a powder metallurgy vacuum sintering glue discharging and degreasing device which comprises a sintering furnace, wherein the sintering furnace is communicated with at least one oil storage tank through a gas discharging and glue discharging pipeline, the two oil storage tanks are communicated through oil pipes and communicated with the vacuum pump through the gas discharging and glue discharging pipeline, and bottom ports of the gas discharging and glue discharging pipeline are all arranged below the liquid level of waste oil stored in the oil storage tank. This degreasing plant is when carrying out the degrease processing to the material, and the in-process of vacuum pump suction gasification lipid because the device in exhaust duct's bottom all is located the below of oil liquid level, easily appears adsorbing the risk to the vacuum pump with fluid when the suction, causes the pollution of vacuum pump, and then the short circuit phenomenon appears in the vacuum pump easily appearing, has reduced the maintenance frequency and the maintenance cost of the life of vacuum pump and equipment.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the powder metallurgy degreasing oil discharge system overcomes the defects of the prior art, is simple in structure and convenient to use, can effectively perform degreasing treatment on materials, and can effectively reduce the pollution degree of vacuum equipment.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a powder metallurgy degrease oil extraction system, includes the vacuum fritting furnace and installs the vacuum pump that the evacuation was responsible for, the top of vacuum fritting furnace is equipped with the first evacuation branch pipe that is linked together with the evacuation person in charge, and this system still includes first row of miscellaneous jar, the outer wall parcel of first row of miscellaneous jar has first clamp cover, and its and first clamp cover are equipped with the first chamber that holds that is used for filling water, and its bottom with the vacuum fritting furnace is through first row of miscellaneous union coupling, and its right side top is equipped with first row of miscellaneous mouthful, and its inside top is equipped with fueling injection apparatus, first row of miscellaneous pipe is located from last downward movement of the pipeline of first row of miscellaneous jar contact the outer wall of first row of miscellaneous jar, and its exit end is located the inside below of first row of miscellaneous jar, first row of miscellaneous mouthful through the connecting pipe be connected with the evacuation person in charge is responsible for the second evacuation branch pipe that is linked together.
According to the invention, the first impurity discharging tank and the first impurity discharging pipe are arranged, and the first impurity discharging port is arranged above the first impurity discharging tank, so that the phenomenon that oil enters the vacuum pump through a pipeline when a vacuum pump is adopted to suck gasified grease can be avoided, the degree of pollution of the vacuum pump by impurities is effectively reduced, the service life of the vacuum pump is prolonged, the maintenance frequency of the vacuum pump is reduced, and the degreasing cost is reduced.
Furthermore, fueling injection equipment is including dismantling the first installation piece of connecting in the inside top of first miscellaneous jar of row, be equipped with first standing groove in the first installation piece, be equipped with in the first standing groove and spout the oil pipe, spout and be equipped with a plurality of vertical decurrent oil spout shower nozzles on the oil pipe, and its oil feed end stretches out first miscellaneous jar of row and is connected with the oil storage tank outward.
According to the invention, the oil injection device is arranged, so that when the gasified impurities flow upwards in the first impurity discharging tank, the oil can be sprayed from top to bottom by the oil injection device, the contact between the gas and the oil is effectively promoted, the lipid in the gas is dissolved in the oil and drops downwards to the bottom of the first impurity discharging tank, the lipid removing effect is further improved, and the pollution of the vacuum pump caused by the gasified lipid entering the vacuum pump is effectively avoided.
Further, the middle part of the outer side wall of the first impurity discharging tank is provided with a liquid level sensor, the bottom of the first impurity discharging tank is provided with a first impurity discharging pipe, a first electromagnetic valve is installed on the first impurity discharging pipe, and the liquid level sensor and the first electromagnetic valve are connected with a controller.
Further, a first heating pipe is arranged in the first accommodating cavity.
Furthermore, a second electromagnetic valve and a third electromagnetic valve are respectively arranged on the first vacuumizing branch pipe and the second vacuumizing branch pipe.
Furthermore, a second impurity discharging tank is further arranged between the vacuum sintering furnace and the first impurity discharging pipe, the outer wall of the second impurity discharging tank is wrapped by a second jacket, a second accommodating cavity is arranged between the second accommodating cavity and the second jacket and connected with the bottom of the vacuum sintering furnace through a second impurity discharging pipe, a second impurity discharging port is arranged above the right side of the second impurity discharging tank, a water spraying device is arranged above the inner side of the second impurity discharging tank, a pipeline, in which the second impurity discharging pipe is in contact with the second impurity discharging tank, is coiled on the outer wall of the second impurity discharging tank from top to bottom, the outlet end of the second impurity discharging tank is positioned below the inner part of the second impurity discharging tank, and the second impurity discharging port is connected with the first impurity discharging pipe.
The second impurity removing tank is arranged, so that dust in impurities can be effectively removed, the phenomenon that the dust is contacted with grease in the first impurity removing tank to cause grease agglomeration is avoided, the combination of oil and grease in gas is prevented from being influenced, and the grease removing effect is further improved.
Further, water jet equipment is including dismantling the second installation piece of connecting in the inside top of miscellaneous jar of second row, be equipped with the second standing groove in the second installation piece, be equipped with the spray pipe in the second standing groove, be equipped with a plurality of vertical decurrent water sprayings on the spray pipe, and its oil feed end stretches out the miscellaneous jar of second row and is connected with the water storage tank outward.
Furthermore, a second impurity outlet pipe is arranged at the bottom of the second impurity discharging tank, and a second heating pipe is arranged in the second accommodating cavity.
Further, still be equipped with the miscellaneous jar of third row between connecting pipe and the second vacuum pumping branch pipe, the miscellaneous jar of third row is including removing oil jar and dewatering tank, it is located the top that removes the water jar to remove the oil jar, and it can dismantle with dewatering tank and be connected.
Further, the bottom of except that the water pitcher is equipped with the air inlet, the top of except that the oil tank is equipped with the gas outlet, the connecting pipe with the air inlet is connected, second evacuation branch pipe with the gas outlet is connected.
Further, the oil removal tank is filled with an oil absorption felt and cotton, and the water removal tank is filled with activated carbon.
The powder metallurgy degreasing oil discharge system has the beneficial effects that:
(1) according to the invention, the first impurity discharging tank and the first impurity discharging pipe are arranged, and the first impurity discharging port is arranged above the first impurity discharging tank, so that the phenomenon that oil enters the vacuum pump through a pipeline when the vacuum pump is used for sucking and gasifying grease can be avoided, the degree of pollution of the vacuum pump by impurities is effectively reduced, the service life of the vacuum pump is prolonged, the maintenance frequency of the vacuum pump is reduced, and the degreasing cost is reduced;
(2) the second impurity removing tank is arranged, so that dust in impurities can be effectively removed, the phenomenon that the dust is contacted with grease in the first impurity removing tank to cause grease agglomeration is avoided, the combination of oil and grease in gas is prevented from being influenced, and the grease removing effect is further improved.
Drawings
FIG. 1 is a schematic diagram of a powder metallurgy degreasing oil discharge system in example 1;
FIG. 2 is an enlarged view of the point A in FIG. 1;
FIG. 3 is a schematic structural view of a powder metallurgy degreasing oil discharge system in example 2;
FIG. 4 is an enlarged view of the point B in FIG. 3;
fig. 5 is a schematic structural diagram of a powder metallurgy degreasing oil discharge system in embodiment 3.
The above reference numerals: 1-a vacuum sintering furnace, 2-a vacuum pump, 3-a main vacuum-pumping pipe, 4-a first vacuum-pumping branch pipe, 5-a second electromagnetic valve, 6-a second vacuum-pumping branch pipe, 7-a third electromagnetic valve, 8-a connecting pipe, 9-a first impurity-discharging pipe, 10-a first impurity-discharging tank, 11-a first jacket, 12-a first accommodating cavity, 13-a first heating pipe, 14-a first mounting block, 15-a first fixing block, 16-an oil-spraying pipe, 17-an oil-spraying nozzle, 18-a liquid level sensor, 19-a first impurity-discharging pipe, 20-a first electromagnetic valve, 21-a second impurity-discharging pipe, 22-a second impurity-discharging tank, 23-a second jacket, 24-a second accommodating cavity, 25-a second heating pipe, 26-a second mounting block, 27-a second fixing block, 28-water spray pipe, 29-water spray nozzle, 30-second impurity discharge pipe, 31-third impurity discharge tank, 32-oil removal tank, 33-water removal tank, 34-filter plate and 35-bolt.
Detailed Description
The invention is further illustrated with reference to the following figures and examples, which are not intended to limit the scope of the invention in any way.
Example 1
The utility model provides a powder metallurgy degrease oil extraction system, includes vacuum sintering stove 1 and vacuum pump 2, vacuum pump 2 is connected with the evacuation and is responsible for 3, the evacuation is responsible for 3 and is connected with first evacuation branch pipe 4 and second evacuation branch pipe 6, install second solenoid valve 5 on the first evacuation branch pipe 4, and its other end is connected with the top of vacuum sintering stove 1, install third solenoid valve 7 on the second evacuation branch pipe 6, and its other end is connected with connecting pipe 8.
The bottom of the vacuum sintering furnace 1 is connected with a first impurity discharging tank 10 through a first impurity discharging pipe 9, the outer wall of the first impurity discharging tank 10 is wrapped by a first jacket 11, a first containing cavity 12 used for filling water is arranged between the first jacket 11 and the first jacket, a first impurity discharging port is arranged above the right side of the first impurity discharging tank, the first impurity discharging port is connected with a connecting pipe 8, a pipeline, in contact with the first impurity discharging tank 10, of the first impurity discharging pipe 9 is arranged on the outer wall of the first impurity discharging tank 10 from top to bottom in a coiled mode, heat in impurities can be effectively recycled, the outlet end of the first impurity discharging tank is located below the inside of the first impurity discharging tank 10, and a first heating pipe 13 is arranged in the first containing cavity 12.
The inside top of first row of miscellaneous jar 10 is equipped with fueling injection equipment, fueling injection equipment is including locating the first installation piece 14 of the inside top of first row of miscellaneous jar 10, first fixed block 15 is installed to the inside wall of first row of miscellaneous jar 10, first installation piece 14 is placed on first fixed block 15, and is equipped with first standing groove in it, be equipped with in the first standing groove and spout oil pipe 16, spout and be equipped with a plurality of vertical decurrent oil spout shower nozzles 17 on the oil pipe 16, and its oil feed end stretches out first row of miscellaneous jar 10 external connection and has the oil storage tank.
According to the invention, the outlet end of the first impurity discharging pipe 9 is positioned at the lower part inside the first impurity discharging tank 10, and the first impurity discharging port is arranged at the upper part of the right side of the first impurity discharging tank 10, so that impurities sucked from the vacuum sintering furnace 1 can flow from the bottom to the top of the first impurity discharging tank 10, and in the process of flowing from bottom to top, powder impurities are settled under the action of the self gravity and can be separated from gas phase impurities; the gas phase impurities can be in convection contact with oil sprayed from top to bottom by the oil spraying device in the upward flowing process, so that fat-soluble substances in the gas phase are dissolved in the oil and drop to the bottom of the first impurity discharging tank 10 along with the oil;
compared with the method of directly introducing the gas phase into the oil liquid layer, the method of spraying the oil liquid from top to bottom is adopted, the gas phase is introduced into the oil liquid layer due to the fact that the oil liquid layer has a certain height, the gas flows upwards, the time of the gas after the gas is absorbed by the oil liquid layer is limited, and the gas can be contacted with the oil liquid in the whole process that the gas flows from the bottom of the first impurity discharging tank 10 to the top of the first impurity discharging tank through the spraying mode, so that the contact time of the oil liquid and the gas is prolonged; and the fluid that drops in first exhaust jar 10 also can increase gradually and form the fat-soluble material in the fluid layer of oil and can further adsorb in the gas, in addition, still further improves the contact effect of fat-soluble material and fluid through the convection current contact of fluid and gas, can effectively get rid of the fat-soluble material in the gaseous phase impurity, avoids the lipid gaseous phase to get into vacuum pump 2 and leads to the phenomenon of vacuum pump 2 pollution.
The first impurity discharging port is arranged above the right side of the first impurity discharging tank 10, so that the phenomenon that the vacuum pump 2 is polluted because oil is directly sucked into the vacuum pump 2 in the process of sucking impurities by the vacuum pump 2 can be effectively avoided, the pollution degree of the vacuum pump 2 by the impurities is effectively reduced, the service life of the vacuum pump 2 is prolonged, the maintenance frequency of the vacuum pump 2 is reduced, and the degreasing cost is reduced.
The inside top of first row miscellaneous jar 10 is equipped with fueling injection equipment, fueling injection equipment is including dismantling the first installation piece 14 of connecting in the inside top of first row miscellaneous jar 10, be equipped with first standing groove in the first installation piece 14, be equipped with in the first standing groove and spout oil pipe 16, spout and be equipped with a plurality of vertical decurrent oil spout shower nozzles 17 on the oil pipe 16, and its oil feed end stretches out first row miscellaneous jar 10 external connection and has the oil storage tank.
The middle part of the outer side wall of the first impurity discharging tank 10 is provided with a liquid level sensor 18, the bottom of the first impurity discharging tank is provided with a first impurity discharging pipe 19, the first impurity discharging pipe 19 is provided with a first electromagnetic valve 20, the liquid level sensor 18 and the first electromagnetic valve 20 are connected with a controller, and the second electromagnetic valve 5 and the third electromagnetic valve 7 are also connected with the controller.
Because at the in-process of vacuum pump 2 suction impurity, fluid passes through oil jet equipment and constantly drips into in first row miscellaneous jar 10, long-time operation back, when the fluid layer reaches first row miscellaneous jar 10 half of the time, liquid level inductor 18 senses this fluid and has arrived first row miscellaneous jar 10 half of height and with this signal transmission to controller, controller control third solenoid valve 7 closes, first solenoid valve 20 opens, stop the evacuation, and discharge fluid from first play miscellaneous pipe 19 through first solenoid valve 20, and then can further avoid taking place fluid by the phenomenon of suction to vacuum pump 2 in, effectively avoid vacuum pump 2 to be contaminated.
The invention relates to a working principle and a using method of a powder metallurgy degreasing oil discharge system, which comprises the following steps: the vacuum pump 2 is opened, the second electromagnetic valve 5 is firstly opened, the vacuum sintering furnace 1 is vacuumized, then the second electromagnetic valve 5 is closed, the third electromagnetic valve 7 is opened, the vacuum sintering furnace 1 starts to carry out the sintering process on the powder raw materials, a small amount of dust and gas-phase impurities in the sintering process flow from top to bottom through the first impurity discharging pipe 9 under the suction action of the vacuum pump 2 and enter the first impurity discharging tank 10 from the lower part inside the first impurity discharging tank 10, part of the small amount of dust sinks to the bottom of the first impurity discharging tank 10 under the action of self gravity, the gas-phase impurities flow from bottom to top in the first impurity discharging tank 10, in the process of flowing from bottom to top, the gas phase impurities are in convective contact with oil sprayed from top to bottom by an oil spraying device, so that fat-soluble substances in the gas phase impurities are mixed with the oil and drop to the bottom of a first impurity discharging tank 10 along with the oil, and non-fat-soluble gas phase substances are sucked into a vacuum pump 2 from a first impurity discharging port through a connecting pipe 8 and are discharged; after long-time operation, when fluid highly reaches the position of liquid level inductor 18 in dropping to first trash can 10, this signal transmission to controller is responded to liquid level inductor 18, and controller control third solenoid valve 7 closes, and first solenoid valve 20 opens, stops the evacuation to discharge fluid from first play miscellaneous pipe 19 through first solenoid valve 20, and then can further avoid taking place the phenomenon that fluid was pumped to vacuum pump 2 in, effectively avoid vacuum pump 2 to be polluted.
Example 2
The utility model provides a powder metallurgy degrease oil extraction system, includes vacuum sintering stove 1 and vacuum pump 2, vacuum pump 2 is connected with the evacuation and is responsible for 3, the evacuation is responsible for 3 and is connected with first evacuation branch pipe 4 and second evacuation branch pipe 6, install second solenoid valve 5 on the first evacuation branch pipe 4, and its other end is connected with the top of vacuum sintering stove 1, install third solenoid valve 7 on the second evacuation branch pipe 6, and its other end is connected with connecting pipe 8.
The bottom of the vacuum sintering furnace 1 is connected with a second impurity discharging tank 22 through a second impurity discharging pipe 21, the outer wall of the second impurity discharging tank 22 is wrapped by a second jacket 23, a second containing cavity 24 is arranged between the second jacket 23 and the second jacket, a second impurity discharging port is arranged above the right side of the second impurity discharging tank, a pipeline, in contact with the second impurity discharging tank 22, of the second impurity discharging pipe 21 is arranged on the outer wall of the second impurity discharging tank 22 in a coiled mode from top to bottom, heat in impurities can be effectively recycled, the outlet end of the second impurity discharging tank is located below the inner portion of the second impurity discharging tank 22, the second impurity discharging port is connected with the first impurity discharging pipe 9, a second heating pipe 25 is arranged in the second containing cavity 24, and a second impurity discharging pipe 30 is arranged at the bottom of the second impurity discharging tank 22.
The inside top of miscellaneous jar 22 is arranged to the second is equipped with water jet equipment, water jet equipment is including locating the second installation piece 26 of the inside top of miscellaneous jar 22 is arranged to the second, the second fixed block 27 is installed to the inside wall of miscellaneous jar 22 is arranged to the second, first installation piece 14 is placed on second fixed block 27, be equipped with the second standing groove in the second installation piece 26, be equipped with spray pipe 28 in the second standing groove, be equipped with a plurality of vertical decurrent water sprayhead 29 on the spray pipe 28, and its oil feed end stretches out the miscellaneous jar 22 external connection of second row and has the water storage tank.
According to the invention, the second impurity removing tank 22 is arranged, so that dust in impurities can be removed firstly, and then gas-phase impurities with the dust removed are input into the second impurity removing tank 22, so that the phenomenon that the oil caking phenomenon is caused by direct contact between the dust and the oil in the first impurity removing tank 10 to influence the combination of the oil and the lipid in the gas can be avoided, and the lipid removing effect can be further improved.
First row's miscellaneous pipe 9 is connected with first row miscellaneous jar 10, the outer wall parcel of first row miscellaneous jar 10 has first cover 11 that presss from both sides, and it and first cover 11 are equipped with the first chamber 12 that holds that is used for filling water between, and its right side top is equipped with first row miscellaneous mouthful, first row miscellaneous mouthful is connected with connecting pipe 8, the pipeline of first row miscellaneous pipe 9 and the contact of first row miscellaneous jar 10 is located from last dish down the outer wall of first row miscellaneous jar 10, and its exit end is located the inside below of first row miscellaneous jar 10, first holding is equipped with first heating pipe 13 in the chamber 12.
The inside top of first row of miscellaneous jar 10 is equipped with fueling injection equipment, fueling injection equipment is including locating the first installation piece 14 of the inside top of first row of miscellaneous jar 10, first fixed block 15 is installed to the inside wall of first row of miscellaneous jar 10, first installation piece 14 is placed on first fixed block 15, and is equipped with first standing groove in it, be equipped with in the first standing groove and spout oil pipe 16, spout and be equipped with a plurality of vertical decurrent oil spout shower nozzles 17 on the oil pipe 16, and its oil feed end stretches out first row of miscellaneous jar 10 external connection and has the oil storage tank.
The middle part of the outer side wall of the first impurity discharging tank 10 is provided with a liquid level sensor 18, the bottom of the first impurity discharging tank is provided with a first impurity discharging pipe 19, the first impurity discharging pipe 19 is provided with a first electromagnetic valve 20, the liquid level sensor 18 and the first electromagnetic valve 20 are connected with a controller, and the second electromagnetic valve 5 and the third electromagnetic valve 7 are also connected with the controller.
The invention relates to a working principle and a using method of a powder metallurgy degreasing oil discharge system, which comprises the following steps: opening the vacuum pump 2, firstly opening the second electromagnetic valve 5, vacuumizing the vacuum sintering furnace 1, then closing the second electromagnetic valve 5, opening the third electromagnetic valve 7, starting the sintering process of the powder raw materials by the vacuum sintering furnace 1, wherein a small amount of dust and gas-phase impurities in the sintering process flow from top to bottom through the second impurity discharging pipe 21 under the suction action of the vacuum pump 2 and enter the second impurity discharging tank 22 from the inside lower part of the second impurity discharging tank 22, part of the small amount of dust sinks to the bottom of the second impurity discharging tank 22 under the self gravity action of the small amount of dust, and the gas-phase impurities flow from bottom to top in the second impurity discharging tank 22, and are in convection contact with water sprayed from top to bottom by a water spraying device in the process of flowing from bottom to top, so that the dust is further settled;
gas-phase impurities flow from top to bottom from the second impurity discharging port through the first impurity discharging pipe 9 and enter the first impurity discharging tank 10 from the inner lower part of the first impurity discharging tank 10, part of a small amount of dust sinks to the bottom of the first impurity discharging tank 10 under the action of self gravity, the gas-phase impurities flow from bottom to top in the first impurity discharging tank 10, and in the process of flowing from bottom to top, the gas-phase impurities are in convective contact with oil sprayed from top to bottom by an oil spraying device, so that fat-soluble substances in the gas-phase impurities are mixed with the oil and drop to the bottom of the first impurity discharging tank 10 along with the oil, and non-fat-soluble gas-phase substances are sucked into the vacuum pump 2 from the first impurity discharging port through the connecting pipe 8 and discharged; after long-time operation, when fluid highly reaches the position of liquid level inductor 18 in dropping to first trash can 10, this signal transmission to controller is responded to liquid level inductor 18, and controller control third solenoid valve 7 closes, and first solenoid valve 20 opens, stops the evacuation to discharge fluid from first play miscellaneous pipe 19 through first solenoid valve 20, and then can further avoid taking place the phenomenon that fluid was pumped to vacuum pump 2 in, effectively avoid vacuum pump 2 to be polluted.
Example 3
The utility model provides a powder metallurgy degrease oil extraction system, includes vacuum sintering stove 1 and vacuum pump 2, vacuum pump 2 is connected with the evacuation and is responsible for 3, the evacuation is responsible for 3 and is connected with first evacuation branch pipe 4 and second evacuation branch pipe 6, install second solenoid valve 5 on the first evacuation branch pipe 4, and its other end is connected with the top of vacuum sintering stove 1, install third solenoid valve 7 on the second evacuation branch pipe 6.
The bottom of the vacuum sintering furnace 1 is connected with a second impurity discharging tank 22 through a second impurity discharging pipe 21, the outer wall of the second impurity discharging tank 22 is wrapped by a second jacket 23, a second containing cavity 24 is arranged between the second jacket 23 and the second jacket, a second impurity discharging port is arranged above the right side of the second impurity discharging tank, a pipeline, in contact with the second impurity discharging tank 22, of the second impurity discharging pipe 21 is arranged on the outer wall of the second impurity discharging tank 22 in a coiled mode from top to bottom, heat in impurities can be effectively recycled, the outlet end of the second impurity discharging tank is located below the inner portion of the second impurity discharging tank 22, the second impurity discharging port is connected with the first impurity discharging pipe 9, and a second heating pipe 25 is arranged in the second containing cavity 24.
The inside top of miscellaneous jar 22 is arranged to the second is equipped with water jet equipment, water jet equipment is including locating the second installation piece 26 of the inside top of miscellaneous jar 22 is arranged to the second, the second fixed block 27 is installed to the inside wall of miscellaneous jar 22 is arranged to the second, first installation piece 14 is placed on second fixed block 27, be equipped with the second standing groove in the second installation piece 26, be equipped with spray pipe 28 in the second standing groove, be equipped with a plurality of vertical decurrent water sprayhead 29 on the spray pipe 28, and its oil feed end stretches out the miscellaneous jar 22 external connection of second row and has the water storage tank.
According to the invention, the second impurity removing tank 22 is arranged, so that dust in impurities can be removed firstly, and then gas-phase impurities with the dust removed are input into the second impurity removing tank 22, so that the phenomenon that the oil caking phenomenon is caused by direct contact between the dust and the oil in the first impurity removing tank 10 to influence the combination of the oil and the lipid in the gas can be avoided, and the lipid removing effect can be further improved.
First row's miscellaneous pipe 9 is connected with first row miscellaneous jar 10, the outer wall parcel of first row miscellaneous jar 10 has first cover 11 that presss from both sides, and it presss from both sides between the cover 11 with first and is equipped with the first chamber 12 that holds that is used for filling water, and its right side top is equipped with first row miscellaneous mouth, the pipeline of first row miscellaneous pipe 9 and the contact of first row miscellaneous jar 10 is located from last downward dish first row miscellaneous jar 10's outer wall, and its exit end is located the inside below of first row miscellaneous jar 10, first holding is equipped with first heating pipe 13 in the chamber 12.
The inside top of first row of miscellaneous jar 10 is equipped with fueling injection equipment, fueling injection equipment is including locating the first installation piece 14 of the inside top of first row of miscellaneous jar 10, first fixed block 15 is installed to the inside wall of first row of miscellaneous jar 10, first installation piece 14 is placed on first fixed block 15, and is equipped with first standing groove in it, be equipped with in the first standing groove and spout oil pipe 16, spout and be equipped with a plurality of vertical decurrent oil spout shower nozzles 17 on the oil pipe 16, and its oil feed end stretches out first row of miscellaneous jar 10 external connection and has the oil storage tank.
The middle part of the outer side wall of the first impurity discharging tank 10 is provided with a liquid level sensor 18, the bottom of the first impurity discharging tank is provided with a first impurity discharging pipe 19, the first impurity discharging pipe 19 is provided with a first electromagnetic valve 20, the liquid level sensor 18 and the first electromagnetic valve 20 are connected with a controller, and the second electromagnetic valve 5 and the third electromagnetic valve 7 are also connected with the controller.
First row's miscellaneous mouth is connected with connecting pipe 8, the other end of connecting pipe 8 is connected with miscellaneous jar 31 of third row, miscellaneous jar 31 is arranged including except that oil tank 32 and except that water jar 33 to the third, except that oil tank 32 is located except that the top of water jar 33, and it can dismantle with except that water jar 33 and be connected, specifically is: the bottom of except that oil tank 32 and the top of except that water tank 33 all are equipped with filter plate 34, connect through bolt 35 between the filter plate 34, the bottom of except that water tank 33 is equipped with the air inlet, the top of except that oil tank 32 is equipped with the gas outlet, connecting pipe 8 with the air inlet is connected, second evacuation branch pipe 6 with the gas outlet is connected, except that the intussuseption of oil tank 32 and being filled with oil absorption felt and cotton, except that the intussuseption of water tank 33 is filled with the active carbon.
The third impurity removing tank 31 consisting of the oil removing tank 32 and the water removing tank 33 is arranged, so that residual moisture and lipid in gas-phase impurities can be further removed, the pollution of the vacuum pump 2 caused by the residual water vapor and gas-phase lipid entering the vacuum pump 2 through a pipeline is avoided, and the service life of the vacuum pump 2 is effectively prolonged.
The invention relates to a working principle and a using method of a powder metallurgy degreasing oil discharge system, which comprises the following steps: opening the vacuum pump 2, firstly opening the second electromagnetic valve 5, vacuumizing the vacuum sintering furnace 1, then closing the second electromagnetic valve 5, opening the third electromagnetic valve 7, starting the sintering process of the powder raw materials by the vacuum sintering furnace 1, wherein a small amount of dust and gas-phase impurities in the sintering process flow from top to bottom through the second impurity discharging pipe 21 under the suction action of the vacuum pump 2 and enter the second impurity discharging tank 22 from the inside lower part of the second impurity discharging tank 22, part of the small amount of dust sinks to the bottom of the second impurity discharging tank 22 under the self gravity action of the small amount of dust, and the gas-phase impurities flow from bottom to top in the second impurity discharging tank 22, and are in convection contact with water sprayed from top to bottom by a water spraying device in the process of flowing from bottom to top, so that the dust is further settled;
gas-phase impurities flow from the second impurity discharging port through the first impurity discharging pipe 9 from top to bottom and enter the first impurity discharging tank 10 from the inner lower part of the first impurity discharging tank 10, part of a small amount of dust is settled to the bottom of the first impurity discharging tank 10 under the action of the self gravity, the gas-phase impurities flow from bottom to top in the first impurity discharging tank 10, and in the process of flowing from bottom to top, the gas-phase impurities can be in convective contact with oil sprayed from top to bottom by an oil spraying device, so that fat-soluble substances in the gas-phase impurities are mixed with the oil and drop to the bottom of the first impurity discharging tank 10 along with the oil, non-fat-soluble gas-phase substances flow into the third impurity discharging tank 31 from the first impurity discharging port through the connecting pipe 8, and are subjected to water absorption and oil absorption treatment in the third impurity discharging tank 31, so as to further remove moisture and lipids in the impurities, and finally gas is sucked into the vacuum pump 2 and discharged; after long-time operation, when fluid highly reaches liquid level inductor 18's position in drippage to first trash can 10, this signal transmission to controller is responded to liquid level inductor 18, controller control third solenoid valve 7 closes, first solenoid valve 20 opens, stops the evacuation, and discharge fluid from first play miscellaneous pipe 19 through first solenoid valve 20, and then can further avoid taking place fluid and be pumped the phenomenon to in the vacuum pump 2, effectively avoid vacuum pump 2 to be contaminated.
It will be further understood that the terms "first," "second," "third," "fourth," and the like, may be used herein to describe various elements, but these elements should not be limited by these terms. These terms are only used to distinguish one element from another.
As used herein, the terms "upper," "lower," "left," "right," and the like are used for convenience of description based on the orientation as shown in the figures of the drawings, which may vary from one actual device to another depending on the manner in which the device is arranged.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a powder metallurgy degrease oil extraction system, includes the vacuum fritting furnace and installs the vacuum pump that the evacuation was responsible for, the top of vacuum fritting furnace is equipped with the first evacuation branch pipe that is responsible for and is linked together with the evacuation, its characterized in that: the system further comprises a first trash discharging tank, the outer wall of the first trash discharging tank is wrapped by a first clamping sleeve, a first accommodating cavity used for filling water is arranged between the first clamping sleeve and the first clamping sleeve, the first accommodating cavity is connected with the bottom of the vacuum sintering furnace through a first trash discharging pipe, a first trash discharging port is arranged above the right side of the first trash discharging tank, an oil spraying device is arranged above the right side of the first trash discharging tank, the first trash discharging pipe is arranged on the outer wall of the first trash discharging tank from top to bottom in a coiled mode, the outlet end of the first trash discharging pipe is located below the inner portion of the first trash discharging tank, and the first trash discharging port is connected with a second vacuumizing branch pipe communicated with the vacuumizing main pipe through a connecting pipe.
2. The powder metallurgy degreasing oil drainage system of claim 1, wherein: the oil injection device comprises a first installation block detachably connected to the upper portion of the interior of the first row of the miscellaneous tank, a first placing groove is formed in the first installation block, an oil injection pipe is arranged in the first placing groove, a plurality of vertical downward oil injection spray heads are arranged on the oil injection pipe, and an oil inlet end of the oil injection spray head extends out of the first row of the miscellaneous tank and is connected with an oil storage tank.
3. The powder metallurgy degreasing oil drainage system of claim 1, wherein: the outer side wall middle part of the first trash discharging tank is provided with a liquid level sensor, the bottom of the first trash discharging tank is provided with a first trash discharging pipe, a first electromagnetic valve is installed on the first trash discharging pipe, and the liquid level sensor and the first electromagnetic valve are connected with a controller.
4. The powder metallurgy degreasing oil drainage system of claim 1, wherein: a first heating pipe is arranged in the first accommodating cavity.
5. The powder metallurgy degreasing oil drainage system of claim 1, wherein: and the first vacuumizing branch pipe and the second vacuumizing branch pipe are respectively provided with a second electromagnetic valve and a third electromagnetic valve.
6. The powder metallurgy degreasing oil drainage system of claim 1, wherein: still be equipped with the second and arrange miscellaneous jar between vacuum sintering stove and the first row of miscellaneous pipe, the outer wall parcel of the miscellaneous jar of second row has the second to press from both sides the cover, and it and second press from both sides and are equipped with the second between the cover and hold the chamber, and it is connected through the miscellaneous union coupling of second row with the bottom of vacuum sintering stove, and its right side top is equipped with the miscellaneous mouth of second row, and its inside top is equipped with water jet equipment, the miscellaneous pipe of second row is located with the pipeline of the miscellaneous jar contact of second row from last downward the outer wall of miscellaneous jar is arranged to the second, and its exit end is located the inside below of the miscellaneous jar of second row, the miscellaneous mouth of second row with the miscellaneous union coupling of first row.
7. The powder metallurgy degreasing oil drainage system of claim 6, wherein: the water spraying device comprises a second mounting block detachably connected to the upper portion of the inner portion of the second impurity discharging tank, a second placing groove is formed in the second mounting block, a water spraying pipe is arranged in the second placing groove, a plurality of vertically downward water spraying nozzles are arranged on the water spraying pipe, and the oil inlet end of the water spraying pipe stretches out of the second impurity discharging tank and is connected with a water storage tank.
8. The powder metallurgy degreasing oil drainage system of claim 6, wherein: and a second impurity outlet pipe is arranged at the bottom of the second impurity discharging tank, and a second heating pipe is arranged in the second accommodating cavity.
9. The powder metallurgy degreasing oil drainage system of claim 1, wherein: still be equipped with the miscellaneous jar of third row between connecting pipe and the second evacuation branch pipe, the miscellaneous jar of third row is including except that oil tank and dewatering tank, except that the oil tank is located the top of dewatering tank, and it can dismantle with dewatering tank and be connected.
10. The powder metallurgy degreasing oil drainage system of claim 8, wherein: the bottom of the dewatering tank is provided with an air inlet, activated carbon is filled in the dewatering tank, the top of the dewatering tank is provided with an air outlet, an oil absorption felt and cotton are filled in the dewatering tank, the connecting pipe is connected with the air inlet, and the second vacuumizing branch pipe is connected with the air outlet.
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| CN114589306B (en) | 2023-08-29 |
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