CN114748911A - Vacuum pump oil filtering device with flat-plate squeezer and application method - Google Patents
Vacuum pump oil filtering device with flat-plate squeezer and application method Download PDFInfo
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- CN114748911A CN114748911A CN202210318709.0A CN202210318709A CN114748911A CN 114748911 A CN114748911 A CN 114748911A CN 202210318709 A CN202210318709 A CN 202210318709A CN 114748911 A CN114748911 A CN 114748911A
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- filter
- oil
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- tank body
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- 238000001914 filtration Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000002893 slag Substances 0.000 claims abstract description 36
- 238000003860 storage Methods 0.000 claims abstract description 19
- 238000011010 flushing procedure Methods 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 14
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000000926 separation method Methods 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 5
- 239000000428 dust Substances 0.000 description 10
- 239000002699 waste material Substances 0.000 description 6
- 238000005086 pumping Methods 0.000 description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000004821 distillation Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
- B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/33—Self-supporting filtering elements arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
- B01D29/603—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by flow measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/04—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention belongs to the technical field of industrial sump oil filtration. The cup-shaped cup comprises a cup-shaped cup body and a cup cover, wherein the cup body is fixedly connected with the cup cover, and a closed straight-wall concave filtering cavity is arranged in an inner cavity at the upper part of the cup body; an upper backflushing device which is communicated with the interior of the filter cavity is arranged on the tank cover, and an outlet passage which is communicated with the interior of the filter cavity is arranged at the center of the tank cover; an inlet passage and a pressure relief passage are arranged on the side wall of the upper part of the tank body; a pressure relief device is arranged in the pressure relief passage; the side wall of the upper part of the tank body is also provided with a side backflushing device which is communicated with the inner cavity of the tank body; the lower part of the tank body is connected with a ball valve through an upper flange plate, and the lower part of the ball valve is connected with a slag storage tank through a lower flange plate; the lower part of the slag storage tank is communicated with a flat plate squeezer; the oil drain port is arranged at the bottom of the shell. The invention removes the impurity by air-jetting through the back-flushing device, and removes the filter residue adhered on the surface of the filter layer, so that the filtering work can be continued without influencing the normal oil filtering process, and the invention can not influence the continuous operation of the main equipment.
Description
Technical Field
The invention belongs to the technical field of industrial sump oil filtration, and particularly relates to a vacuum pump oil pumping filtration device with a flat-plate squeezer and an application method thereof in a production process of filtering titanium sponge.
Background
With the wider application development of the metal titanium, the general trend of the titanium sponge industry is to expand the production scale, improve the product quality and reduce the production cost. In the titanium sponge production equipment, the high-performance stable operation of a vacuum system is crucial to the quality of a titanium sponge product; the slide valve type vacuum pump mainly working in the low vacuum rough pumping stage always has the problems that pump oil is seriously polluted and has to be replaced in a large amount in time, so that a large amount of vacuum pump waste oil is generated in the production process of the titanium sponge.
The production process of the waste oil of the slide valve vacuum pump comprises the following steps: the main mass production mode of the titanium sponge is a process route of a magnesium reduction-distillation method, in the process, each reduction and distillation of titanium sponge equipment are accompanied by long-time vacuum pumping operation, metal magnesium and magnesium oxide steam can diffuse and flow in a vacuum passage along with air flow, and although the metal magnesium and magnesium oxide steam is blocked by a cyclone dust collector and a steel wire ball filter, part of the steam still finally reaches a slide valve vacuum pump serving as a rough pumping pump; dust entering the slide valve pump is adhered to and mixed with the vacuum pump oil which plays a role in lubricating and sealing in the pump, and cannot be discharged out of the pump and accumulated in the vacuum pump oil; the pump oil polluted by dust has increased viscosity and contains solid dust particles, the lubricating and sealing performance of the pump oil is poor, the air exhaust performance of the vacuum pump is greatly reduced, and even mechanical faults of dead locking of a slide valve and damage of the vacuum pump can occur. In order to avoid such accidents and ensure the normal operation of the vacuum system, contaminated pump oil in the slide valve pump needs to be replaced in time, thereby generating a large amount of waste oil. Meanwhile, the same amount of new vacuum pump oil must be purchased for replacement. The existing sump oil treatment method and device not only have extremely high time cost, but also have extremely low efficiency, so a new oil filter device and method are urgently needed.
Compared with common dust, the dust in the embodiment is smaller and has a large quantity, and particularly after the dust is combined with pump oil, the processing difficulty is greatly improved. Laboratory tests show that the waste oil has high dust content, high viscosity and poor fluidity, and the conventional treatment method can face a plurality of problems, such as a common filtering method, frequent impurity blockage of a filter screen in the actual working process, a common centrifugal method, frequent cleaning in the actual working process due to high solid content of the dirty oil, and the like. The traditional equipment is difficult to operate and maintain, the separated impurities are difficult to treat, and the filtered impurities are high in oil content and viscous. At present, an oil filtering device which can continuously work under the condition that the phenomenon that a filter screen is blocked by filter substances is easy to occur is urgently needed, and the oil filtering device is also suitable for similar conditions of other industries. Aiming at the current situation, the invention provides a vacuum pump oil filtering device and method for treating the titanium sponge industry.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an oil pumping and filtering device with a flat-plate squeezer for a vacuum pump and an application method thereof, which solve the problem that a filter screen is blocked by filter substances when the vacuum pump continuously works, improve the working efficiency and reduce the cost of an oil filtering process.
In order to achieve the purpose, the invention adopts the following technical scheme:
a vacuum pump oil filtering device with a flat squeezer comprises a trophy cup-shaped tank body and a tank cover, wherein the tank body is fixedly connected with the tank cover, a closed straight-wall downward concave filter cavity is arranged in an inner cavity at the upper part of the tank body, a metal filter screen is arranged in a cavity of the filter cavity, a top cover of the filter cavity is arranged in a clamping groove at the edge of the top of the tank body, and an upward convex limiting block is arranged on the outer side of the top cover of the filter cavity; the tank cover is provided with a limiting hole matched with the filter cavity limiting block, the limiting hole is sleeved on the limiting block, the upper edges of the tank cover and the tank body are both provided with fixing holes, the tank cover and the tank body are fixedly connected through bolts penetrating through the fixing holes, the tank cover is also provided with a guide hole connected with the guide rail, the tank cover is provided with an upper backflushing device communicated with the interior of the filter cavity, and the center of the tank cover is provided with an outlet passage communicated with the interior of the filter cavity; the side wall of the upper part of the tank body is provided with an inlet passage and a pressure relief passage, and the opening position of the pressure relief passage is higher than that of the inlet passage; a pressure relief device is arranged in the pressure relief passage; the side wall of the upper part of the tank body is also provided with a side recoil device which is introduced into the inner cavity of the tank body, and the opening position of the side recoil device is higher than the opening position of the pressure relief passage; the lower part of the tank body is connected with a ball valve through an upper flange plate, and the lower part of the ball valve is connected with a slag storage tank through a lower flange plate; the lower part of the slag storage tank is communicated with a flat plate squeezer, the flat plate squeezer consists of a shell, a squeezing flat plate, a small telescopic arm, a slag outlet and an oil drain outlet, and the squeezing flat plate is connected with the small telescopic arm and arranged at one side end of the shell; the other end of the shell is provided with a slag hole, and the slag hole cover is fixedly connected to the slag hole through a buckle structure; the oil drain port is arranged at the bottom of the shell.
The metal filter screen of the filter cavity consists of an inner metal filter layer, a middle cloth bag filter layer and an outer metal filter layer.
The pressure relief device arranged on the pressure relief passage is provided with a pressure sensor, and the flow can be automatically adjusted according to different working pressure states of the liquid.
The connection part of the filter cavity and the tank body, the connection part of the ball valve and the upper and lower flange discs, the connection part of the small telescopic arm of the flat squeezer and the shell, and the connection part between the shell of the flat squeezer and the slag outlet cover are all sealed by sealing rings.
The ball valve is fixedly connected with the upper flange plate and the lower flange plate through bolts penetrating through the fixing holes.
The cover is provided with a handle, and the hook is hung on the handle.
The application method of the vacuum pump oil filtering device in the titanium sponge production process comprises the following steps:
(1) opening the access valve, opening the filter: opening an inlet passage valve and an outlet passage valve, wherein dirty oil flows in from an inlet passage and gradually fills an inner cavity of the tank body, liquid-solid separation starts when the liquid level rises to be in contact with a filter layer, clean oil reaches the inside of the filter cavity through a filter layer in the liquid-solid separation process, and overflows from the outlet passage after being accumulated, filter residues are intercepted on the outer wall of the filter cavity by the filter layer, the dirty oil gradually fills the inner cavity of the tank body along with continuous injection of the dirty oil, the oil inlet speed is higher than the oil filtering speed at the moment, and redundant oil liquid overflows from a pressure relief passage through a pressure relief device;
(2) starting the upper recoil device, and discharging clear oil: when filter residues on the outer wall of the filter cavity are accumulated continuously, the filtering speed is reduced, the flow of the outlet passage is obviously reduced, the valve of the inlet passage is closed, the upper back flushing device at the tank cover is opened, high-pressure gas enters the filter cavity through the upper back flushing device, and filtered clear oil flows out of the outlet passage under large pressure difference;
(3) starting a side recoil device, cleaning filter residues to a residue storage area: when clean oil basically flows out of the outlet passage, the upper backflushing device and the valve of the outlet passage are closed, the ball valve of the slag deposit area is opened, then the side backflushing device is started, high-pressure gas flushes filter residues on the outer wall of the filter layer through the side backflushing device, and the filter residues fall into a slag deposit tank of the slag deposit area through a pipeline under the impact of gas flow;
(4) closing the ball valve, and enabling the process to enter a cycle: when step (3) finishes, close the ball valve, clear oil is outside by eduction gear this moment, the filter residue enters into and deposits the sediment district, whole device is divided into two parts by the ball valve, continue to carry out the operation of step (1) to (3) to the part device more than the ball valve, the motor of the following flat squeezer of ball valve is in the open mode all the time, fall into the separation casing from the entry gradually as the filter residue, small-size flexible arm carries out reciprocating motion under the motor drives, thereby it promotes the filter residue to drive to squeeze the flat board, the filter residue will separate out sump oil under the squeezing action of squeezing flat board and casing, sump oil will be discharged from the oil drain port, open the flap of slagging tap and can take out the filter residue in the disengagement zone.
According to the invention, the impurity removing mode of air spraying is carried out through the back flushing device, so that filter residues adhered to the surface of the filter layer are removed, the defects of the traditional filtering mode in treating the dirty oil are avoided, the filtering operation can be continued, the normal oil filtering process is not influenced, and the continuous operation of the main equipment is not influenced. According to the invention, the filter residue in the oil filtering area is flushed into the residue storage tank of the residue storage area at one time through the backflushing device, then the ball valve is closed, the oil filtering operation above the ball valve is continued, the filter residue operation below the ball valve is also performed synchronously, the filter residue in the residue storage tank gradually enters the separation area, the oil liquid which enters the residue storage tank along with the filter residue carelessly in the material conveying process is separated from part of oil liquid remaining in the filter residue through flat plate squeezing, the separated oil liquid is collected and prepared to be put into the oil filtering process again, and the secondary treatment of the filter residue can greatly reduce the resource waste. According to the invention, through higher construction, different devices which are paved on the ground are stacked, so that the occupied area is saved, the actual processing route is also shorter, the waste of materials transmitted between the devices is avoided, and the cost, the operation period and the occupied area of the devices are greatly reduced. The invention saves more time than the traditional oil filtering method in actual work due to the working procedures of filter residue cleaning, secondary filter residue treatment and the like.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a partial schematic view of FIG. 1;
FIG. 4 is a partial schematic view of FIG. 1;
FIG. 5 is a partial schematic view of FIG. 1;
FIG. 6 is a schematic view showing the structure of a slag hole of a shell of the flat press;
in the figure, 1-inlet passage, 2-pressure relief device, 3-pressure relief passage, 4-guiding hole, 5-hook, 6-fixing hole, 7-side recoil device, 8-upper recoil device, 9-outlet passage, 10-tank cover, 11-inner metal filter layer, 12-sealing ring, 13-sealing ring, 14-middle cloth bag filter layer, 15-outer metal filter layer, 16-fixing hole, 17-sealing ring, 18-ball valve, 19 a-upper flange, 19 b-lower flange, 20-fixing hole, 21-slag storage tank, 22-plate squeezer shell, 23-sealing ring, 24-slag outlet cover, 25-oil outlet, 26-oil outlet, 27-small telescopic arm, 28-sealing ring, 29-squeezing plate, 30-sealing ring, 31-tank body.
Detailed Description
The invention is described in further detail below with reference to the following figures and specific examples:
as shown in fig. 1, 2 and 3, the oil filtering device of the vacuum pump with the flat squeezer comprises a cup-shaped tank body 31 and a tank cover 10, wherein the tank body 31 is fixedly connected with the tank cover 10, a closed straight-wall lower concave filtering cavity is arranged in an inner cavity at the upper part of the tank body, a cavity of the filtering cavity is a metal filter screen, a top cover of the filtering cavity is arranged in a clamping groove at the edge of the top of the tank body, and an upward convex limiting block is arranged on the outer side of the top cover of the filtering cavity; the tank cover is provided with a limiting hole matched with the filter cavity limiting block, the limiting hole is sleeved on the limiting block, the upper edges of the tank cover and the tank body are both provided with fixing holes 6, the tank cover is fixedly connected with the tank body through bolts penetrating through the fixing holes, the tank cover is also provided with a guide hole 4 connected with a guide rail, the tank cover is provided with an upper backflushing device 8 introduced into the filter cavity, and the center of the tank cover is provided with an outlet passage 9 introduced into the filter cavity; the side wall of the upper part of the tank body is provided with an inlet passage 1 and a pressure relief passage 3, and the opening position of the pressure relief passage is higher than that of the inlet passage; a pressure relief device 2 is arranged in the pressure relief passage; the side wall of the upper part of the tank body is also provided with a side backflushing device 7 which is communicated with the inner cavity of the tank body, and the opening position of the side backflushing device is higher than that of the pressure relief passage.
As shown in fig. 1, 4 and 5, the lower part of the tank body is connected with a ball valve 18 through an upper flange 19a, and the lower part of the tank body is connected with a slag storage tank 20 through a lower flange 19 b; the lower part of the slag storage tank is communicated with a flat plate squeezer which consists of a shell 22, a squeezing flat plate 29, a small telescopic arm 27, a slag outlet 24, an oil outlet 25 and an oil outlet 26, and the squeezing flat plate is connected with the small telescopic arm and is arranged at one side end of the shell. Referring to fig. 6, the other end of the housing is provided with a slag hole, and the slag hole cover is fixedly connected to the slag hole through a buckle structure; the oil drain port is arranged at the bottom of the shell. The squeezing flat plate can discharge dirty oil from the two oil discharge ports along with the movement of the small telescopic arm.
As can be seen from fig. 1 and 3, the metal filter screen is composed of an inner metal filter layer 11, a middle cloth bag filter layer 14, and an outer metal filter layer 15. The pressure relief device arranged on the pressure relief passage 3 is provided with a pressure sensor 2, and the flow can be automatically adjusted according to different working pressure states of liquid.
As can be seen from figures 1, 4 and 5, the connection part of the filter cavity and the tank body is provided with sealing rings 12 and 13, the connection part of the ball valve and the upper flange plate and the lower flange plate is provided with a sealing ring 17 and 30 respectively, the connection part of the small telescopic arm 27 of the flat plate squeezer and the shell is provided with a sealing ring 28, and the connection part between the shell of the flat plate squeezer and the slag outlet cover is provided with a sealing ring seal 23. The ball valve is fixedly connected with the upper flange plate through bolts penetrating through the fixing holes 16, and the ball valve is fixedly connected with the lower flange plate through bolts penetrating through the fixing holes 20. The cover is provided with a handle, and the hook 5 is hung on the handle.
The application method of the vacuum pump oil filtering device in the production process of the titanium sponge comprises the following steps:
(1) opening the access valve, opening the filter: after the valve of the inlet passage 1 and the valve of the outlet passage 9 are opened, dirty oil flows in from the inlet passage and gradually fills the inner cavity of the tank body 31, liquid-solid separation starts when liquid level contacts with the filter layer 15, clean oil reaches the interior of the filter chamber through the filter layer and accumulates and then overflows from the outlet passage 9 in the liquid-solid separation process, filter residues are intercepted on the outer wall 15 of the filter chamber by the filter layer, the dirty oil gradually fills the inner cavity of the whole tank body 31 along with continuous injection of the dirty oil, the oil inlet speed is higher than the oil filtering speed at the moment, and redundant oil overflows from the pressure relief passage 3 through the pressure relief device 2;
(2) starting the upper backflushing device 8, discharging clear oil: when filter residues on the outer wall 15 of the filter cavity are accumulated continuously, the filtering speed is reduced, the flow of the outlet passage 9 is obviously reduced, the valve of the inlet passage 1 is closed, the upper backflushing device 8 at the tank cover 10 is opened, high-pressure gas enters the filter cavity through the upper backflushing device, and filtered clean oil flows out of the outlet passage 9 under large pressure difference;
(3) starting a side backflushing device 7, cleaning filter residues to a residue storage area: when clean oil basically flows out of the outlet passage 9, the valves of the upper backflushing device 8 and the outlet passage 9 are closed, the valve of the ball valve 18 of the slag deposit area is opened, the side backflushing device 7 is started, high-pressure gas flushes filter residues on the outer wall 15 of the filter layer through the side backflushing device, and the filter residues fall into a slag deposit tank 21 of the slag deposit area through a pipeline under the impact of gas flow;
(4) closing the ball valve 18 and the process enters the cycle: when step (3) finishes, close ball valve 18 valve, clear oil is outside by eduction gear this moment, the filter residue enters into and deposits the sediment district, whole device is divided into two parts by ball valve 18, continue the operation of step (1) to (3) to the partial device more than the ball valve, the motor of the following flat squeezer of ball valve is in the on-state all the time, fall into casing 22 from the entry gradually as the filter residue, small-size flexible arm 27 carries out reciprocating motion under the motor drives, thereby drive and squeeze dull and stereotyped 29 and promote the filter residue, the filter residue will separate out dirty oil under the squeezing action of squeezing dull and stereotyped and casing 22, dirty oil will be discharged from oil drain port 25, open slag tap flap 24 and can take out the filter residue in the casing.
Experimental test results show that in the process of treating the dirty oil of the vacuum pump generated in the titanium sponge production equipment, when the inner metal filter screen 11, the outer metal filter screen 15 and the metal filter screen 23 adopt the conventional 200-mesh stainless steel wire screens, metal dust particles larger than 100 microns in the dirty oil can be filtered out; when the middle cloth bag filter layer 14 adopts a conventional 50-micron filter cloth, the particle size of dust remained in the treated clear oil is less than 50 microns.
Claims (7)
1. The utility model provides a vacuum pump oil filter equipment with flat squeezer, includes the trophy cup jar body, cover, jar body and cover fixed connection, its characterized in that: the inner cavity at the upper part of the tank body is provided with a closed straight-wall lower concave filter cavity, the cavity of the filter cavity is a metal filter screen, the top cover of the filter cavity is arranged in a clamping groove at the edge of the top of the tank body, and the outer side of the top cover of the filter cavity is provided with a limiting block protruding upwards; the tank cover is provided with a limiting hole matched with the filter cavity limiting block, the limiting hole is sleeved on the limiting block, the upper edges of the tank cover and the tank body are both provided with fixing holes, the tank cover is fixedly connected with the tank body through bolts penetrating through the fixing holes, the tank cover is also provided with a guide hole connected with the guide rail, the tank cover is provided with an upper backflushing device communicated with the interior of the filter cavity, and the center of the tank cover is provided with an outlet passage communicated with the interior of the filter cavity; an inlet passage and a pressure relief passage are arranged on the side wall of the upper part of the tank body, and the opening position of the pressure relief passage is higher than that of the inlet passage; a pressure relief device is arranged in the pressure relief passage; the side wall of the upper part of the tank body is also provided with a side backflushing device which is communicated with the inner cavity of the tank body, and the opening position of the side backflushing device is higher than that of the pressure relief passage; the lower part of the tank body is connected with a ball valve through an upper flange plate, and the lower part of the ball valve is connected with a slag storage tank through a lower flange plate; the lower part of the slag storage tank is communicated with a flat plate squeezer, the flat plate squeezer consists of a shell, a squeezing flat plate, a small telescopic arm, a slag outlet and an oil drain outlet, and the squeezing flat plate is connected with the small telescopic arm and arranged at one side end of the shell; the other end of the shell is provided with a slag hole, and the slag hole cover is fixedly connected to the slag hole through a buckle structure; the oil drain port is arranged at the bottom of the shell.
2. A vacuum pump oil filter device according to claim 1, wherein: the metal filter screen of the filter cavity body consists of an inner metal filter layer, a middle cloth bag filter layer and an outer metal filter layer.
3. The vacuum pump oil filter device according to claim 1 or 2, wherein: the pressure relief device arranged on the pressure relief passage is provided with a pressure sensor, and the flow can be automatically adjusted according to different working pressure states of liquid.
4. The vacuum pump oil filter device according to claim 1 or 2, wherein: the connection part of the filter cavity and the tank body, the connection part of the ball valve and the upper flange plate and the lower flange plate, the connection part of the small telescopic arm of the flat squeezer and the shell, and the connection part between the shell of the flat squeezer and the slag outlet cover are all sealed by sealing rings.
5. The vacuum pump oil filter device according to claim 1 or 2, wherein: the ball valve is fixedly connected with the upper flange plate and the lower flange plate through bolts penetrating through the fixing holes.
6. The vacuum pump oil filter device according to claim 1 or 2, wherein: the tank cover is provided with a handle, and the hook is hung on the handle.
7. An application method of the vacuum pump oil filtering device in a titanium sponge production process comprises the following steps:
(1) opening the access valve, opening the filter: opening an inlet passage valve and an outlet passage valve, wherein dirty oil flows in from an inlet passage and gradually fills an inner cavity of the tank body, liquid-solid separation starts when the liquid level rises to be in contact with a filter layer, clean oil reaches the inside of the filter cavity through a filter layer in the liquid-solid separation process, the clean oil overflows from the outlet passage after accumulation, filter residues are intercepted on the outer wall of the filter cavity by the filter layer, the dirty oil gradually fills the inner cavity of the tank body along with continuous injection of the dirty oil, the oil inlet speed is higher than the oil filtering speed at the moment, and redundant oil liquid overflows from a pressure relief passage through a pressure relief device;
(2) starting an upper backflushing device, discharging clear oil: when filter residues on the outer wall of the filter cavity are accumulated continuously, the filtering speed is reduced, the flow of the outlet passage is reduced obviously, the valve of the inlet passage is closed, the upper back flushing device at the tank cover is opened, high-pressure gas enters the filter cavity through the upper back flushing device, and filtered clear oil flows out of the outlet passage under large pressure difference;
(3) starting a side recoil device, cleaning filter residues to a residue storage area: when the clean oil basically flows out of the outlet passage, the upper backflushing device and the valve of the outlet passage are closed, the ball valve of the slag storage area is opened, the side backflushing device is started, high-pressure gas flushes filter residues on the outer wall of the filter layer through the side backflushing device, and the filter residues fall into a slag storage tank of the slag storage area through a pipeline under the impact of air flow;
(4) closing the ball valve, and enabling the process to enter a cycle: when step (3) finishes, close the ball valve, clear oil is outside by eduction gear this moment, the filter residue enters into and deposits the sediment district, whole device is divided into two parts by the ball valve, continue to carry out the operation of step (1) to (3) to the part device more than the ball valve, the motor of the following flat squeezer of ball valve is in the open mode all the time, fall into the casing from the entry gradually as the filter residue, small-size flexible arm carries out reciprocating motion under the motor drives, thereby it promotes the filter residue to drive and squeeze the flat board, the filter residue will separate out sump oil under the squeezing action of squeezing flat board and casing, sump oil will be discharged from the oil drain port, open the flap of slagging tap and can take out the filter residue in the disengagement zone.
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| CN114748911B (en) | 2024-10-01 |
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