CN110075586B - Automatic solid-liquid separation device for vertical dehydration of air filter pressing - Google Patents
Automatic solid-liquid separation device for vertical dehydration of air filter pressing Download PDFInfo
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- CN110075586B CN110075586B CN201910460267.1A CN201910460267A CN110075586B CN 110075586 B CN110075586 B CN 110075586B CN 201910460267 A CN201910460267 A CN 201910460267A CN 110075586 B CN110075586 B CN 110075586B
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- 238000003825 pressing Methods 0.000 title claims abstract description 179
- 239000007788 liquid Substances 0.000 title claims abstract description 44
- 238000000926 separation method Methods 0.000 title claims abstract description 38
- 230000018044 dehydration Effects 0.000 title claims abstract description 21
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000005507 spraying Methods 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 113
- 230000008093 supporting effect Effects 0.000 claims description 63
- 239000010963 304 stainless steel Substances 0.000 claims description 44
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 44
- 238000001914 filtration Methods 0.000 claims description 31
- 239000004744 fabric Substances 0.000 claims description 24
- 239000007921 spray Substances 0.000 claims description 24
- 238000009434 installation Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 8
- 238000011085 pressure filtration Methods 0.000 claims description 7
- 230000001939 inductive effect Effects 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 4
- 229920002978 Vinylon Polymers 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 abstract description 17
- 238000004458 analytical method Methods 0.000 abstract description 13
- 238000005516 engineering process Methods 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000004568 cement Substances 0.000 abstract 1
- 230000005611 electricity Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000005065 mining Methods 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
- 239000002585 base Substances 0.000 description 55
- 230000000694 effects Effects 0.000 description 6
- 238000005070 sampling Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 4
- 230000001976 improved effect Effects 0.000 description 4
- 238000013178 mathematical model Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000012773 Laboratory assay Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011012 sanitization Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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
- B01D29/01—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
- B01D29/05—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 supported
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/30—Filter housing constructions
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sampling And Sample Adjustment (AREA)
- Filtration Of Liquid (AREA)
Abstract
An automatic solid-liquid separation device for air filter pressing vertical dehydration is suitable for carrying out rapid solid-liquid separation on ore pulp samples when providing calibration samples for a grade online analysis system in metallurgical and mining operations. The invention comprehensively utilizes the air filter pressing technology, the vertical dehydration technology, the bottom seepage technology, the annular water spraying technology and the automatic control technology, not only can ensure the accuracy of the calibration sample, but also can effectively reduce the water content of the calibration sample, thereby greatly shortening the drying time of the calibration sample and the electric energy consumption of the drying equipment, thoroughly solving the technical problems of high water content of the calibration sample, long drying time of the calibration sample, easy external pollution of the calibration sample and high electricity consumption of the drying equipment, and meeting the requirement of the grade online analysis equipment on the larger demand of the calibration sample. The invention has novel design thought, simple and reasonable structure, low manufacturing, using and maintaining cost and good use performance, and has great popularization and application values in the fields of mine energy, electric power, cement and nonferrous metal.
Description
Technical Field
The invention belongs to the technical field of metallurgy and mine beneficiation, and relates to an automatic solid-liquid separation device for air filter pressing vertical dehydration.
Background
In recent years, in order to better control various process indexes in metallurgical and mineral processing industries, large mineral processing enterprises start to introduce advanced grade online analysis equipment from abroad. In order to improve the operation quality of the on-line grade analysis equipment, an optimal mathematical model (also called an optimal analysis model) is firstly established for the on-line grade analysis equipment. In order to establish an optimal mathematical model of the grade online analysis system, firstly, a calibration sample with strong representativeness, wide coverage and high sampling accuracy is required to be obtained, and then, the calibration sample is subjected to laboratory analysis by adopting a laboratory analysis method, and calibration data is obtained. The grade online analysis device generates an optimal mathematical model from these calibration data.
Currently, laboratory assays acquire highly accurate grade data and concentration data after manual (or automated) sampling, baking, assaying, and analysis. However, this method generally takes about 6 hours to acquire calibration data. Among these, the most time consuming is the drying process. Because the water content of the calibration sample is high, a great deal of time is required to be spent in solid-liquid separation by drying the sample with a hot blast stove. It is counted that it generally takes 3 to 4 hours to dry a calibration sample.
However, when the grade online analysis device uses the calibration sample to build the optimal mathematical model of each flow channel, 60 calibration samples are generally required, and then 360 samples are required for 6 flow channels. If two samples are taken per flow channel per class, then the 6 flow channels are 36 samples per day, and the 36 sample photo-drying process takes 108-144 hours. Therefore, the method for carrying out solid-liquid separation by using the hot blast stove to dry the sample requires a large amount of hot blast stoves on one hand and consumes a large amount of electric energy; on the other hand, a lot of drying time is required. Therefore, the method for carrying out solid-liquid separation by adopting the hot blast stove drying process at present cannot meet the requirement of the on-line grade analysis equipment on the large demand of the calibration sample.
Disclosure of Invention
Aiming at the problems existing in the prior solid-liquid separation technology, the invention designs and discloses an air filter pressing vertical dehydration automatic solid-liquid separation device, which is used for solving the technical problems of high water content of a calibration sample, long drying time of the calibration sample, more drying equipment, high electric energy consumption of the drying equipment and the like in the prior art. The invention comprehensively utilizes the air filter pressing technology, the vertical dehydration technology, the bottom seepage technology, the annular water spraying technology and the automatic control technology, thereby not only ensuring the accuracy of the calibration sample, but also greatly reducing the water content of the calibration sample. Thereby greatly reducing the drying time of the calibration sample and the power consumption of the drying apparatus.
In order to achieve the aim of the invention, the invention adopts the following specific technical scheme: the utility model provides an automatic solid-liquid separation device of vertical dehydration of air filter-pressing, mainly by the installation base, the filter-pressing base, the mounting panel, the seepage flow hole, the seepage flow groove, the filter screen, sealed pad, the filter cloth, the filter-pressing barrel, filter-pressing barrel locating pin, filter-pressing sealed lid, annular spray pipe, the intake pipe, the blast pipe, spring-type relief valve, filter-pressing sealed lid locating pin, the lift cylinder support arm, lower axis of rotation, lift cylinder support beam, lift cylinder, go up proximity switch, down proximity switch, the rotor arm, go up axis of rotation, the rotor arm crossbeam, left and right cylinder, swing trunnion, swing the base, the installing support, left limit bolt, left proximity switch, right limit bolt, right proximity switch, water spray solenoid valve, air inlet solenoid valve, exhaust solenoid valve, lift cylinder piston rod, left and right cylinder piston rod etc. constitute.
The installation base is formed by welding 8# channel steel and is rectangular as a whole. The length dimension is 900mm and the width dimension is 350mm. The installation base is mainly used for fixing the air filter pressing device and the air cylinder system.
The filter pressing base is made of 304 stainless steel round bars, and the whole filter pressing base is a cylinder. The diameter size of the filter pressing base is phi 200mm, and the height size is 30mm. The filter pressing base is fixed on the mounting plates at the left side and the right side through bolts.
The mounting plate is made of 304 stainless steel plates, and the thickness dimension of the stainless steel plates is 5mm. The whole mounting plate is right trapezoid. The length dimension of the upper bottom of the right trapezoid is 120mm, the length dimension of the lower bottom is 240mm, the height dimension of the right waist is 80mm, and the length dimension of the inclined waist is 144mm. The mounting panel welds above the mounting base, and the filter-pressing base passes through the bolt fastening on the mounting panel.
The center of the filter pressing base is provided with a seepage hole, and the diameter size of the seepage hole is phi 15mm. The seepage holes are used for discharging liquid after solid-liquid separation.
The periphery of the seepage hole is provided with 8 seepage grooves which are distributed in a shape of a Chinese character 'mi', and the seepage grooves slope towards the seepage hole with a gradient of 3%. The cross section of the seepage groove is arc-shaped, and the radius of the arc at the seepage hole is 2.5mm. The design is favorable for timely discharging liquid after solid-liquid separation through the seepage grooves and the seepage holes, so that the solid-liquid separation efficiency is improved.
A filter screen is arranged above the seepage groove, the filter screen is made of 304 stainless steel plates, and the filter screen is circular. The diameter size of the filter screen is phi 150mm, and the thickness size of the filter screen is 1mm. Round holes with diameter of phi 3mm are uniformly distributed on the filter screen, and the center-to-center distance between any two adjacent round holes on the filter screen is 5mm.
The periphery of the filter screen is provided with a sealing gasket. The sealing gasket is an oil-resistant rubber gasket and is in a circular ring shape. The circle center of the circular ring is overlapped with the circle center of the filter pressing base. The inner diameter of the circular ring is 150mm, the outer diameter of the circular ring is 180mm, and the thickness of the sealing gasket is 2mm. To prevent the gasket from falling out, about 1mm is inserted into the press base.
The filter cloth is arranged above the filter screen and the sealing pad. The filter cloth is made of vinylon filter cloth, and is rectangular, and has a length dimension of 250mm and a width dimension of 200mm.
The filter cloth is provided with a filter pressing cylinder. The filter pressing cylinder body is made of 304 stainless steel tubes. The filter pressing cylinder body is cylindrical. The height dimension of the filter pressing cylinder is 200mm, the inner diameter dimension of the filter pressing cylinder is phi 160mm, the outer diameter dimension of the filter pressing cylinder is phi 168mm, and the wall thickness of the filter pressing cylinder is 4mm.
The filter-pressing barrel is positioned through the filter-pressing barrel locating pins arranged on the mounting plates on the left side and the right side, so that the circle center of the filter-pressing barrel is ensured to be always overlapped with the circle center of the filter-pressing base. The filter pressing cylinder locating pin is made of 304 stainless steel inner hexagonal bolts with the diameter of 6mm.
The upper part of the filter pressing cylinder body is provided with a filter pressing sealing cover. The filter pressing sealing cover is made of 304 stainless steel round bars, and is a cylinder. The diameter size is phi 180mm, and the height size is 20mm.
The bottom surface of the filter pressing sealing cover is provided with a sealing gasket. The sealing gasket is an oil-resistant rubber gasket and is in a circular ring shape. The circle center of the sealing gasket is overlapped with the circle center of the filter pressing sealing cover. The inner diameter size of the sealing gasket is phi 150mm, the outer diameter size of the sealing gasket is phi 180mm, and the thickness of the sealing gasket is 2mm. In order to prevent the gasket from falling out, about 1mm of the gasket is inserted into the press seal cover.
The filter pressing sealing cover is respectively provided with an annular water spray pipe, an air inlet pipe, an air outlet pipe and a spring type safety valve. Wherein, the annular spray pipe is made of 304 stainless steel pipe with diameter of phi 8 mm. The whole annular spray pipe is in an annular shape, and the circle center of the annular ring is overlapped with the circle center of the filter pressing sealing cover. The inner diameter size of the circular ring is 120mm, and the outer diameter size of the circular ring is 136mm. The water spraying holes with the diameter of phi 1mm are uniformly distributed at 20 degrees below the side of the annular water spraying pipe and close to one side of the filter pressing cylinder body, and the center distance of the water spraying holes is 20mm. The annular spray pipe is fixed below the filter pressing sealing cover and is used for cleaning ore pulp samples on the filter pressing cylinder. The air inlet pipe is made of 304 stainless steel pipe with diameter of phi 8 mm. In order to avoid that compressed air directly sweeps the calibration sample through the air inlet pipe, the calibration sample is splashed everywhere, and the accuracy of the calibration sample is affected. The air inlet pipe adopts a mode of sealing the bottom and discharging air around. Four air inlets with diameter of phi 2mm are uniformly distributed on the periphery of the air inlet pipe. The exhaust pipe is made of 304 stainless steel pipe with diameter of phi 8 mm. The spring type safety valve is a common pressure-adjustable spring type safety valve, and the spring type safety valve is arranged on the filter pressing sealing cover through an external thread. When the pressure in the filter pressing cylinder is abnormal, the pressure can be relieved through the spring type safety valve. The annular water spray pipe, the air inlet pipe and the air outlet pipe are respectively connected with the water spray electromagnetic valve, the air inlet electromagnetic valve and the air outlet electromagnetic valve through PU hoses. The center of the air inlet pipe, the center of the air outlet pipe and the center of the filter pressing sealing cover are arranged on the same straight line, and the straight line passing through the center of the spring type safety valve and the center of the filter pressing sealing cover is perpendicular to the straight line.
Two positioning pins of the press-filter sealing cover are respectively arranged on the side surfaces of two sides of the press-filter sealing cover, and the positioning pins of the press-filter sealing cover are manufactured by 304 stainless steel inner hexagonal bolts with the diameter of 6mm. Four filter-pressing sealed lid locating pins are located the both sides of lift cylinder support arm respectively to can effectually prevent the sealed in-process left and right sides rotation that goes up and down of filter-pressing.
The lifting cylinder supporting arm is made of 304 stainless steel plates, and the thickness of the stainless steel plates is 10mm. The whole lifting cylinder supporting arm is rectangular, and has the length dimension of 310mm and the width dimension of 50mm. The two lifting cylinder supporting arms are respectively positioned at two sides of the filter pressing base. The lower part of the lifting cylinder supporting arm is connected with the mounting plate of the filter pressing base through a lower rotating shaft and can rotate through the lower rotating shaft. The lower rotating shaft is made of 304 stainless steel round steel with the diameter of phi 8 mm. In order to ensure that the lifting cylinder support arm rotates more flexibly, the joint of the lifting cylinder support arm and the lower rotating shaft is subjected to fillet treatment, and the radius of the fillet is 20mm.
The upper parts of the two lifting cylinder supporting arms are connected with the lifting cylinder supporting beam through inner hexagon bolts. The lifting cylinder supporting beam is made of 304 stainless steel square bars, and the whole lifting cylinder supporting beam is cuboid. The length dimension of the cuboid is 210mm, and the width dimension and the height dimension are 50mm.
The upper surface of the lifting cylinder supporting beam is connected with the lifting cylinder through a bolt. After passing through the center of the lifting cylinder supporting beam, the lifting cylinder piston rod is connected with the press filtration sealing cover through a screw thread and a nut.
When the lifting cylinder piston rod drives the filter pressing sealing cover to do lifting movement, the movement positions of the filter pressing sealing cover are detected through the upper proximity switch and the lower proximity switch respectively. The upper proximity switch and the lower proximity switch are both inductive proximity switches. The upper proximity switch and the lower proximity switch are fixed on a bracket welded on the lifting cylinder supporting arm through nuts.
Two sides of the lifting cylinder supporting beam are respectively provided with a rotating arm. The rotating arm is made of 304 stainless steel plates, and the thickness of the stainless steel plates is 10mm. The whole rotating arm is rectangular, and has the length dimension of 100mm and the width dimension of 30mm.
One end of the rotating arm is connected with the lifting cylinder supporting beam through an upper rotating shaft and can rotate through the upper rotating shaft, and the upper rotating shaft is made of 304 stainless steel round steel with the diameter of phi 8 mm. In order to ensure that the rotating arm rotates more flexibly, the joint of the rotating arm and the upper rotating shaft is subjected to fillet treatment, and the radius of the fillet is 20mm.
The other ends of the two rotating arms are connected with the rotating arm beam through inner hexagon bolts. The rotating arm beam is made of a 304 stainless steel square rod, and the whole rotating arm beam is cuboid. The length dimension of the cuboid is 230mm, and the width dimension and the height dimension are 30mm.
The center of the rotating arm beam is connected with the left and right cylinder piston rods through screw threads and nuts. The middle parts of the left cylinder body and the right cylinder body are provided with swinging trunnions, the swinging trunnions are arranged on swinging bases, and the swinging bases are fixed on mounting brackets through bolts. The mounting bracket is formed by welding 8# channel steel. The left and right cylinders can rotate on the swing base through the swing trunnion.
When the left cylinder piston rod and the right cylinder piston rod move left and right, the lifting cylinder supporting arm is driven to rotate left and right around the lower rotating shaft through the rotating arm cross beam, the rotating arm and the upper rotating shaft, and the filter pressing sealing cover and accessories on the filter pressing sealing cover are driven to rotate in the rotating process of the lifting cylinder supporting arm. When the lifting cylinder supporting arm rotates left and right, the rotation angle of the lifting cylinder supporting arm is limited through the left limit bolt and the right limit bolt, and meanwhile, the specific position of the lifting cylinder supporting arm is detected through the left proximity switch and the right proximity switch. The left proximity switch and the right proximity switch are both inductive proximity switches. The left proximity switch and the right proximity switch are fixed on a bracket welded on the mounting plate through nuts. The nuts of the left limit bolt and the right limit bolt are welded and fixed on a bracket welded on the mounting plate.
The automatic solid-liquid separation device for air filter pressing vertical dehydration has the beneficial effects that: 1. the design thought is novel, the structure is simple and reasonable, the manufacturing, using and maintaining costs are low, and the usability is good; 2. the device adopts a closed air filter pressing vertical dehydration mode, so that on one hand, the solid-liquid separation efficiency is improved, and the water content of a calibration sample can be reduced to be within 10% in 5 minutes according to statistics, thereby saving a large amount of drying process time, and on the other hand, the external interference on the calibration sample is small during the solid-liquid separation, so that the accuracy of the calibration sample is effectively ensured; 3. the device adopts the lifting cylinder and the left and right cylinders as power sources, and under the cooperation of the proximity switch, the electromagnetic valve and the PLC, the purpose of automatically carrying out solid-liquid separation is realized, and the labor intensity of sampling personnel is greatly reduced; 4. the filter pressing base, the filter screen, the filter pressing cylinder body and the filter pressing sealing cover are all made of 304 stainless steel, so that unnecessary pollution to a calibration sample caused by equipment corrosion can be reduced, and the filter pressing base, the filter screen, the filter pressing cylinder body and the filter pressing sealing cover are convenient to clean; 5. the seepage groove designed on the filter pressing base can timely discharge liquid after solid-liquid separation out of the filter pressing barrel, and on the other hand, the seepage groove is of a 'rice-shaped' structure, so that the filter screen can be well supported, and the filter screen can be prevented from being extruded and deformed by compressed air in the process of filter pressing a calibration sample; 6. the annular spray pipe that designs on the filter-pressing sealing cover can be timely with the calibration sample sanitization on the filter-pressing barrel to the accuracy of calibration sample has been improved. 7. The device adopts the air cylinder as a power device, so that the device can be better adapted to the humid environment; 8. the left cylinder and the right cylinder adopt a swing cylinder design, so that the damage of mechanical force on the vertical direction born by the left cylinder and the right cylinder when the lifting cylinder supporting arm is driven to rotate left and right can be effectively avoided, and the service lives of the left cylinder and the right cylinder are greatly prolonged; 9. after the lifting cylinder is fixed by adopting the lifting cylinder supporting beam, on one hand, the lifting cylinder can always keep a vertical state when driving the press filtration sealing cover to perform lifting movement, so that the press filtration cylinder can be tightly sealed, and on the other hand, the lifting cylinder supporting beam is made of a 304 stainless steel square rod, and the stainless steel square rod can not only be corroded by acid and alkali, but also bear the shearing force applied by the lifting cylinder; 10. the proximity switch is designed, so that the positions of the press filtration sealing cover and the lifting cylinder supporting arm can be detected, and the related equipment can be prevented from being damaged by misoperation in the automatic operation process of the solid-liquid separation device; 11. the filter pressing cylinder body locating pin and the filter pressing sealing cover locating pin can effectively ensure that the plumb center line of the filter pressing sealing cover, the plumb center line of the filter pressing cylinder body and the plumb center line of the filter pressing base are on the same straight line, thereby ensuring the safe operation of the solid-liquid separation device.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the cross-sectional structure of the A-A direction in FIG. 1;
FIG. 3 is a schematic view of the B-B cross-sectional structure of FIG. 1;
FIG. 4 is a schematic top view of the structure of FIG. 1C-C;
fig. 5 is a schematic view of the structure of fig. 1 from the direction D-D.
In the figure: 1. A mounting base; 2. a filter pressing base; 3. a mounting plate; 4. seepage holes; 5. a seepage groove; 6. a filter screen; 7. a sealing gasket; 8. a filter cloth; 9. a filter pressing cylinder; 10. the filter pressing cylinder body positioning pin; 11. a press filtration sealing cover; 12. an annular water spray pipe; 13. an air inlet pipe; 14. an exhaust pipe; 15. a spring type safety valve; 16. positioning pins of a press-filtering sealing cover; 17. a lifting cylinder supporting arm; 18. a lower rotating shaft; 19. a lifting cylinder support beam; 20. a lifting cylinder; 21. an upper proximity switch; 22. a lower proximity switch; 23. a rotating arm; 24. an upper rotating shaft; 25. a rotating arm beam; 26. left and right cylinders; 27. a rocking trunnion; 28. a swing base; 29. a mounting bracket; 30. a left limit bolt; 31. a left proximity switch; 32. a right limit bolt; 33. a right proximity switch; 34. a water spraying electromagnetic valve; 35. an air inlet electromagnetic valve; 36. an exhaust electromagnetic valve; 37. a lifting cylinder piston rod; 38. left and right cylinder piston rods.
Detailed Description
The following description of the invention refers to the accompanying drawings, in which:
as shown in fig. 1, 2, 3, 4 and 5, the automatic solid-liquid separation device for air press filtration vertical dehydration according to the present invention mainly comprises an installation base 1, a press filtration base 2, an installation plate 3, a seepage hole 4, a seepage groove 5, a filter screen 6, a sealing gasket 7, a filter cloth 8, a press filtration cylinder 9, a press filtration cylinder positioning pin 10, a press filtration sealing cover 11, an annular spray pipe 12, an air inlet pipe 13, an air outlet pipe 14, a spring type safety valve 15, a press filtration sealing cover positioning pin 16, a lifting cylinder supporting arm 17, a lower rotating shaft 18, a lifting cylinder supporting beam 19, a lifting cylinder 20, an upper proximity switch 21, a lower proximity switch 22, a rotating arm 23, an upper rotating shaft 24, a rotating arm beam 25, a left and right cylinder 26, a swinging trunnion 27, a swinging base 28, an installation bracket 29, a left and a limit bolt 30, a left proximity switch 31, a right limit bolt 32, a right proximity switch 33, an electromagnetic valve 34, an air inlet electromagnetic valve 35, an air outlet electromagnetic valve 36, a lifting cylinder piston rod 37, a left and a right cylinder piston rod 38.
The installation base 1 is formed by welding 8# channel steel, the whole installation base is rectangular, the length dimension is 900mm, and the air filter pressing device and the air cylinder system are installed and fixed on the installation base 1 side by side. The filter pressing base 2 on the air filter pressing device is made of 304 stainless steel round bars, and the whole body is a cylinder. The diameter size of the filter pressing base 2 is phi 200mm, and the height size is 30mm. The filter pressing base 2 is fixed on the installation base 1 through the installation plates 3 on the left side and the right side and bolts.
The mounting plate 3 is made of 304 stainless steel plates, and the thickness dimension of the stainless steel plates is 5mm. The mounting plate 3 is a right trapezoid as a whole. The length dimension of the upper bottom of the right trapezoid is 120mm, the length dimension of the lower bottom is 240mm, the height dimension of the right waist is 80mm, and the length dimension of the inclined waist is 144mm. The mounting plate 3 is welded on the mounting base 1, and the filter pressing base 2 is fixed on the mounting plate 3 through bolts.
The center of the filter pressing base 2 is provided with a seepage hole 4, the diameter size of the seepage hole 4 is phi 15mm, and the seepage hole 4 is used for discharging liquid after solid-liquid separation.
8 seepage grooves 5 which are distributed in a shape of a Chinese character 'mi' are distributed around the seepage holes 4, and the seepage grooves 5 slope towards the seepage holes 4 with a gradient of 3 percent. The cross section of the seepage groove 5 is arc-shaped, so that liquid after solid-liquid separation is discharged from the seepage holes 4 in time, and the solid-liquid separation efficiency is improved.
The filter screen 6 is arranged above the seepage groove 5, the filter screen 6 is made of 304 stainless steel plates, and the whole filter screen 6 is round. The diameter size of the filter screen 6 is phi 150mm, the thickness size of the filter screen 6 is 1mm, round holes with the diameter size of phi 3mm are uniformly distributed on the filter screen 6, and the center-to-center distance size between any two adjacent round holes on the filter screen 6 is 5mm.
The periphery of the filter screen 6 is provided with a sealing gasket 7, the sealing gasket 7 is an oil-resistant rubber gasket, the sealing gasket 7 is in a circular ring shape, and the circle center of the circular ring is overlapped with the circle center of the filter pressing base 2. The inner diameter of the circular ring is 150mm, the outer diameter of the circular ring is 180mm, the thickness of the sealing gasket is 2mm, and 1mm of the sealing gasket is embedded into the filter pressing base 2 to prevent the sealing gasket from falling off.
The filter screen 6 and the sealing pad 7 are provided with filter cloth 8, the filter cloth 8 is made of vinylon filter cloth, the whole filter cloth 8 is rectangular, the length dimension of the filter cloth 8 is 250mm, and the width dimension is 200mm.
The filter cloth 8 is provided with a filter pressing cylinder 9, the filter pressing cylinder 9 is made of 304 stainless steel pipes, the whole filter pressing cylinder 9 is cylindrical, the height dimension of the filter pressing cylinder 9 is 200mm, the inner diameter dimension is phi 160mm, the outer diameter dimension is phi 168mm, and the wall thickness of the filter pressing cylinder 9 is 4mm.
The filter-pressing barrel 9 is positioned through the filter-pressing barrel locating pin 10 arranged on the mounting plates 3 on the left side and the right side, so that the circle center of the filter-pressing barrel 9 is always overlapped with the circle center of the filter-pressing base 2, the filter-pressing barrel 9 is always positioned in the middle of the sealing gasket 7, the sealing effect is enhanced, and the filter-pressing barrel locating pin 10 is manufactured by a 304 stainless steel inner hexagon bolt with the diameter size of 6mm.
The filter pressing cylinder 9 is provided with a filter pressing sealing cover 11, the filter pressing sealing cover 11 is made of 304 stainless steel round bars, the whole filter pressing sealing cover 11 is a cylinder, the diameter size of the filter pressing sealing cover 11 is phi 180mm, and the height size is 20mm.
The bottom surface of filter-pressing sealed lid 11 is provided with sealed pad 7, and sealed pad 7 is oil-resistant rubber pad, wholly takes the ring form, in order to prevent sealed pad 7 from droing, and sealed pad 7 has 1mm embedding filter-pressing sealed lid 11 in the middle of.
The filter pressing sealing cover 11 is respectively provided with an annular water spray pipe 12, an air inlet pipe 13, an air outlet pipe 14 and a spring type safety valve 15. The annular water spraying pipe 12 is made of 304 stainless steel pipes with the diameter of phi 8 mm. The whole annular water spray pipe 12 is in an annular shape, and the center of the annular shape is overlapped with the center of the filter pressing sealing cover 11. The inner diameter size of the circular ring is 120mm, and the outer diameter size of the circular ring is 136mm. The water spraying holes with the diameter of phi 1mm are uniformly distributed at 20 degrees below the side of the annular water spraying pipe 12 and close to one side of the filter pressing cylinder body 9, and the center distance of the water spraying holes is 20mm. The annular water spray pipe 12 is fixed below the filter pressing sealing cover 11 and is used for cleaning ore pulp samples on the filter pressing cylinder 9. The air inlet pipe 13 is made of 304 stainless steel pipe with the diameter of phi 8 mm. In order to avoid that compressed air directly sweeps the calibration sample through the air inlet pipe 13, the calibration sample is splashed everywhere, which affects the accuracy of the calibration sample. The air inlet pipe 13 adopts a mode of bottom sealing and peripheral air outlet for air inlet. Four air inlet holes with diameter of phi 2mm are uniformly distributed on the periphery of the air inlet pipe 13. The exhaust pipe 14 is made of 304 stainless steel pipe with diameter dimension phi 8 mm. The spring type safety valve 15 is a common pressure-adjustable spring type safety valve, and the spring type safety valve 15 is arranged on the press filtration sealing cover 11 through an external thread. When the pressure in the filter pressing cylinder 9 is abnormal, the pressure can be relieved through the spring type safety valve 15.
The annular water spray pipe 12, the air inlet pipe 13 and the air outlet pipe 14 are respectively connected with a water spray electromagnetic valve 34, an air inlet electromagnetic valve 35 and an air outlet electromagnetic valve 36 through PU hoses. The circle center of the air inlet pipe 13, the circle center of the air outlet pipe 14 and the circle center of the filter pressing sealing cover 11 are arranged on the same straight line, and the straight line passing through the circle center of the spring type safety valve 15 and the circle center of the filter pressing sealing cover 11 is vertical to the straight line.
Two positioning pins 16 of the press-filter sealing cover are respectively arranged on the side surfaces of the two sides of the press-filter sealing cover 11. Four filter-pressing sealed lid locating pins 16 are located the both sides of lift cylinder support arm 17 respectively to can effectually prevent the in-process left and right sides rotation of filter-pressing sealed lid 11 lift.
The lifting cylinder supporting arm 17 is made of 304 stainless steel plates, and the thickness of the stainless steel plates is 10mm. The lifting cylinder support arm 17 has a rectangular shape as a whole, and has a length dimension of 310mm and a width dimension of 50mm. Two lifting cylinder supporting arms 17 are respectively positioned at two sides of the filter pressing base 2. The lower part of the lifting cylinder supporting arm 17 is connected with the mounting plate 3 of the filter pressing base 2 through a lower rotating shaft 18 and can rotate through the lower rotating shaft 18.
The lower rotating shaft 18 is made of 304 stainless steel round steel with the diameter of phi 8mm, and in order to ensure that the lifting cylinder supporting arm 17 rotates more flexibly, the joint of the lifting cylinder supporting arm 17 and the lower rotating shaft is subjected to fillet treatment, and the radius of the fillet is 20mm.
The upper parts of the two lifting cylinder supporting arms 17 are connected with a lifting cylinder supporting beam 19 through inner hexagon bolts. The lifting cylinder supporting beam 19 is made of 304 stainless steel square bars, the whole body is cuboid, the length dimension is 210mm, the width dimension and the height dimension are both 50mm,
the lifting cylinder support beam 19 is connected with a lifting cylinder 20 through bolts. After passing through the center of the lifting cylinder support beam 19, the lifting cylinder piston rod 37 of the lifting cylinder 20 is connected with the filter pressing sealing cover 11 through a screw thread and a nut so as to ensure that the plumb center line of the lifting cylinder 20, the plumb center line of the filter pressing sealing cover 11, the plumb center line of the filter pressing cylinder body 9 and the plumb center line of the filter pressing base 2 are on the same straight line. Thereby ensuring sealing effect and improving vertical dewatering efficiency.
When the lifting cylinder piston rod 37 drives the press filtration sealing cover 11 to do lifting movement, the movement positions of the press filtration sealing cover 11 are detected through the upper proximity switch 21 and the lower proximity switch 22 respectively. The upper proximity switch 21 and the lower proximity switch 22 are both inductive proximity switches. The upper proximity switch 21 and the lower proximity switch 22 are fixed on a bracket welded on the lifting cylinder supporting arm 17 through nuts.
Two rotating arms 23 are arranged on two sides of the lifting cylinder supporting beam 19. The rotating arm 23 is made of 304 stainless steel plates, the thickness of the stainless steel plates is 10mm, the whole rotating arm 23 is rectangular, the length dimension is 100mm, and the width dimension is 30mm.
One end of the rotating arm 23 is connected to the lifting cylinder support beam 19 through an upper rotating shaft 24, and the rotating arm 23 is rotatable through the upper rotating shaft 24.
The other ends of the two rotating arms 23 are connected with a rotating arm beam 25 through socket head cap bolts. The rotating arm beam 25 is made of a 304 stainless steel square rod, is integrally cuboid, and has a length dimension of 230mm and a width dimension and a height dimension of 30mm.
The center of the swivel arm cross beam 25 is connected to the left and right cylinder piston rods 38 by threads and nuts. The middle part of the left and right cylinders 26 is provided with a swinging trunnion 27, the swinging trunnion 27 is arranged on a swinging base 28, and the swinging base 28 is fixed on a mounting bracket 29 through bolts. The mounting bracket 29 is welded by 8# channel steel. The left and right cylinders 26 can be rotated on the swing base 28 by the swing trunnions 27.
When the left and right cylinder piston rods 38 of the left and right cylinders 26 move left and right, the lifting cylinder supporting arm 17 is driven to rotate left and right around the lower rotating shaft 18 through the rotating arm cross beam 25, the rotating arm 23 and the upper rotating shaft 24, and the pressure filtration sealing cover 11 and accessories on the pressure filtration sealing cover are driven to rotate in the rotating process of the lifting cylinder supporting arm 17, so that after the calibration sample is subjected to pressure filtration, the pressure filtration cylinder 9 can be taken out smoothly for cleaning. The rotation angle of the lifting cylinder supporting arm 17 is limited by the left limit bolt 30 and the right limit bolt 32 when the lifting cylinder supporting arm 17 rotates left and right, and the specific position of the lifting cylinder supporting arm 17 is detected by the left proximity switch 31 and the right proximity switch 33. The left and right proximity switches 31 and 33 are both inductive proximity switches. The left and right proximity switches 31 and 33 are fixed to brackets welded to the mounting plate 3 by nuts. The nuts of the left limit bolt 30 and the right limit bolt 32 are welded and fixed on the welded bracket on the mounting plate 3. The rotation angle of the lifting cylinder supporting arm 17 can be adjusted by adjusting the extending lengths of the left limiting bolt 30 and the right limiting bolt 32, so that the lifting cylinder supporting arm 17 is ensured to be kept in a vertical state in the process of calibrating sample filter pressing, and the filter pressing cylinder 9 is not influenced to be taken out after the filter pressing is finished.
When the solid-liquid separation device is in the initial state, both the lifting cylinder piston rod 37 and the left and right cylinder piston rods 38 are in the retracted state. Firstly, a filter pressing base 2, a seepage hole 4, a seepage groove 5 and a filter pressing sealing cover 11 are cleaned, then a clean filter screen 6, a filter cloth 8 and filter paper are sequentially paved on the filter pressing base 2, and then a clean filter pressing cylinder 9 is gently placed on the filter paper. When the filter pressing cylinder 9 is placed, on one hand, the filter pressing cylinder 9 is required to be taken and placed lightly, so that the problem that the accuracy of a calibration sample is affected due to ore pulp loss caused by damage to filter paper of the filter pressing cylinder 9 is avoided; on the other hand, the press filtration cylinder 9 is pressed against the filter cylinder positioning pin 10, so that the vertical center line of the press filtration cylinder 9 is overlapped with the vertical center line of the press filtration base 2, and the sealing effect and the press filtration efficiency are ensured.
After the filter-pressing barrel 9 is placed in place, the calibration sample intercepted in the sampling barrel is gently poured into the filter-pressing barrel 9, then the sampling barrel is rinsed cleanly by clean water, and the rinsed ore pulp is completely poured into the filter-pressing barrel 9, so that the accuracy of the calibration sample is ensured.
After the calibration sample is poured into the filter pressing cylinder 9, the solid-liquid separation device is started by the starting button to enter an automatic air filter pressing vertical dehydration state. At this time, the PLC first detects whether the right proximity switch 33 and the upper proximity switch 21 are closed, and if both are closed, it indicates that the lifting cylinder piston rod 37 and the left and right cylinder piston rods 38 are retracted in place, and an automatic operation condition is provided, otherwise, the solid-liquid separation device is not allowed to enter an automatic operation state. After entering the automatic operation state, the left and right cylinders 26 start to operate, and the left and right cylinder piston rods 38 of the left and right cylinders 26 transmit horizontal thrust to the lifting cylinder support beam 19 through the rotating arm cross beam 25, the rotating arm 23 and the upper rotating shaft 24. The lifting cylinder supporting beam 19 drives the lifting cylinder 20, the press filtration sealing cover 11 and the accessory equipment and the lifting cylinder supporting arm 17 on the lifting cylinder to rotate leftwards around the lower rotating shaft 18. After the lifting cylinder supporting arm 17 rotates in place, the left proximity switch 31 is closed, and the left and right cylinders 26 stop working and remain in a stable state. The stable state can ensure that the vertical center line of the press filtration sealing cover 11 coincides with the vertical center line of the press filtration cylinder 9 and the vertical center line of the press filtration base 2, thereby ensuring sealing effect and press filtration efficiency.
After the lifting cylinder supporting arm 17 rotates in place, at this moment, the lifting cylinder 20 starts to act, the lifting cylinder piston rod 37 of the lifting cylinder 20 drives the press filtration sealing cover 11 to move downwards, after the press filtration sealing cover 11 moves in place, the lower proximity switch 22 is closed, the lifting cylinder 20 stops working, and the stable state is maintained, so that the sealing effect of the press filtration sealing cover 11 can be ensured.
After the lower proximity switch 22 is closed, the PLC issues a water spray command, opening the water spray solenoid valve 34. At this time, the annular sprinkler pipe 12 starts to spray water. The water spraying time of the water spraying electromagnetic valve 34 can be freely set in the PLC according to the dirt degree and the pulp property of the inner wall of the filter pressing cylinder 9.
After the water injection solenoid valve 34 is closed, the PLC issues an air intake command, opening the air intake solenoid valve. At this time, the intake pipe 13 starts intake. The air intake time of the air intake solenoid valve 35 can be freely set in the PLC according to the pulp property. Under the pressure effect of compressed air, the liquid in the calibration sample is automatically separated through the common cooperation of filter paper, filter cloth 8, filter screen 6, seepage groove 5 and seepage hole 4, so that the purpose of vertical dehydration of the air filter pressing of the calibration sample is realized.
After the intake solenoid valve 35 is closed, the PLC issues an exhaust command, opening the exhaust solenoid valve 36. The high-pressure gas in the filter pressing cylinder 9 is decompressed through the exhaust pipe 14. The exhaust time of the exhaust solenoid valve 36 can be freely set in the PLC according to the actual situation, and is typically 10 seconds.
After the exhaust solenoid valve 36 is closed, the lift cylinder 20 starts to operate. The lifting cylinder piston rod 37 of the lifting cylinder 20 drives the filter pressing sealing cover 11 to move upwards, and after the filter pressing sealing cover 11 moves in place, the upper proximity switch 21 is closed, the lifting cylinder 20 stops working, and the stable state is maintained.
After the upper proximity switch 21 is closed, the left and right cylinders 26 start to operate. The left and right cylinder piston rods 38 of the left and right cylinders 26 transmit horizontal pulling force to the elevating cylinder support beam 19 through the rotating arm cross beam 25, the rotating arm 23 and the upper rotating shaft 24. The lifting cylinder supporting beam 19 drives the lifting cylinder 20, the filter pressing sealing cover 11 and accessory equipment on the lifting cylinder supporting beam 17 to rotate rightwards around the lower rotating shaft 18. After the lifting cylinder supporting arm 17 rotates in place, the right proximity switch 33 is closed, and the left and right cylinders 26 stop working and remain in a stable state.
During the left and right movement of the left and right cylinder piston rods 38 of the left and right cylinders 26, the left and right cylinders 26 can rotate on the swing base 28 through the swing trunnions 27, so that the left and right cylinders 26 are effectively prevented from being damaged due to the additional mechanical force.
After the right proximity switch 33 is closed, the automatic working flow of the solid-liquid separation device is completely finished. The sampling personnel gently take down the filter pressing cylinder 9, and then put the filter paper and the calibration sample after solid-liquid separation on the filter paper into a plastic bag together for laboratory test.
Simultaneously, the filter pressing base 2, the seepage holes 4, the seepage grooves 5, the filter screen 6, the filter cloth 8, the filter pressing cylinder 9 and the filter pressing sealing cover 11 are all cleaned, and the next automatic operation is waited.
In summary, the left and right cylinders 26, the lifting cylinder 20, the water spraying electromagnetic valve 34, the air inlet electromagnetic valve 35 and the air exhaust electromagnetic valve 36 of the device can be controlled by the PLC, meanwhile, the position of the filter pressing sealing cover 11 is detected through the upper proximity switch 21 and the lower proximity switch 22, and the position of the lifting cylinder supporting arm 17 is detected through the left proximity switch 31 and the right proximity switch 33, so that the purposes of automatic air filter pressing and vertical dehydration of the solid-liquid separation device are realized. The device can greatly reduce the water content of the calibration sample, thereby greatly reducing the drying time of the calibration sample and the electric energy consumption of the drying equipment.
Claims (6)
1. An automatic solid-liquid separation device for air filter pressing vertical dehydration comprises a German Siemens S7-200 series PLC and a spring type safety valve; the method is characterized in that: the air filter pressing vertical dehydration automatic solid-liquid separation device mainly comprises a mounting base, a filter pressing base, a mounting plate, a seepage hole, a seepage groove, a filter screen, a sealing pad, filter cloth, a filter pressing cylinder body positioning pin, a filter pressing sealing cover, an annular water spraying pipe, an air inlet pipe, an exhaust pipe, a spring type safety valve, a filter pressing sealing cover positioning pin, a lifting cylinder supporting arm, a lower rotating shaft, a lifting cylinder supporting beam, a lifting cylinder, an upper proximity switch, a lower proximity switch, a rotating arm, an upper rotating shaft, a rotating arm beam, a left cylinder, a right cylinder, a swinging trunnion, a swinging base, a mounting bracket, a left limit bolt, a left proximity switch, a right limit bolt, a right proximity switch, a water spraying electromagnetic valve, an air inlet electromagnetic valve, an exhaust electromagnetic valve, a lifting cylinder piston rod and a left cylinder piston rod and a right cylinder; wherein:
the installation base is formed by welding 8# channel steel, the whole installation base is rectangular, the length dimension is 900mm, and the width dimension is 350mm;
the mounting plate is made of 304 stainless steel plates, is in a right trapezoid shape as a whole, and is welded on the mounting base;
the filter pressing base is made of 304 stainless steel round bars and is cylindrical; the diameter size of the filter pressing base is phi 200mm, and the height size is 30mm; the filter pressing base is horizontally fixed on the mounting plate by bolts; the center of the filter pressing base is provided with seepage holes with the diameter of phi 15mm, 8 seepage grooves distributed in a shape of a Chinese character 'mi' are arranged around the seepage holes, and the seepage grooves slope towards the seepage holes with the gradient of 3%; the cross section of the seepage groove is arc-shaped; the filter screen in a circular shape is arranged at the upper part of the seepage groove, the periphery of the filter screen is provided with a sealing gasket made of an oil-resistant rubber pad, the circle center of the sealing gasket in a circular shape is overlapped with the circle center of the filter pressing base, the filter screen and the sealing gasket are provided with filter cloth, the filter cloth is rectangular, the length dimension of the filter cloth is 250mm, and the width dimension of the filter cloth is 200mm, and the filter cloth is made of vinylon filter cloth; the filter pressing cylinder body is arranged on the filter cloth and is cylindrical, the height dimension is 200mm, the inner diameter dimension is phi 160mm, the outer diameter dimension is phi 168mm, and the wall thickness of the filter pressing cylinder body is 4mm;
the filter pressing cylinder body is positioned by filter pressing cylinder body positioning pins arranged on mounting plates at the left side and the right side; a filter pressing sealing cover is arranged above the filter pressing cylinder body, and is made of 304 stainless steel round bars and is cylindrical; the bottom surface of the press filtration sealing cover is provided with a sealing gasket, and the sealing gasket is embedded into the press filtration sealing cover by 1 mm;
an annular water spray pipe, an air inlet pipe, an air outlet pipe and a spring type safety valve are respectively arranged on the filter pressing sealing cover; the annular water spray pipe on the filter pressing sealing cover is made of 304 stainless steel pipe with the diameter of phi 8mm, and the circle center of the annular shape is overlapped with the circle center of the filter pressing sealing cover; the annular water spraying pipe is 20 degrees below the side of the annular water spraying pipe and is close to one side of the filter pressing cylinder body, water spraying holes with the diameter of phi 1mm are uniformly distributed, the center distance of the water spraying holes is 20mm, and the annular water spraying pipe is fixed below the filter pressing sealing cover; the air inlet pipe is made of 304 stainless steel pipes with diameter of 8 mm; the air inlet pipe is designed in a mode of sealing the bottom and air inlet around, and four air inlet holes with diameter dimension phi 2mm are uniformly distributed around the lower part of the air inlet pipe; the exhaust pipe is made of 304 stainless steel pipes with the diameter of phi 8 mm; the spring type safety valve is arranged on the press filtration sealing cover through an external thread; the annular water spray pipe, the air inlet pipe and the air outlet pipe are respectively connected with the water spray electromagnetic valve, the air inlet electromagnetic valve and the air outlet electromagnetic valve through PU hoses; the center of the air inlet pipe, the center of the air outlet pipe and the center of the filter pressing sealing cover are arranged on the same straight line, and the straight line passing through the center of the spring type safety valve and the center of the filter pressing sealing cover is perpendicular to the straight line;
two pressure filtration sealing cover positioning pins are respectively arranged at symmetrical positions on two sides of the pressure filtration sealing cover, and the four pressure filtration sealing cover positioning pins are respectively positioned on two sides of the lifting cylinder supporting arm;
the lifting cylinder supporting arms are made of 304 stainless steel plates, are in a rectangular shape, are respectively positioned at two sides of the filter pressing base, are connected with a mounting plate fixed on the filter pressing base through a lower rotating shaft, and can rotate through the lower rotating shaft; the lower rotating shaft is made of 304 stainless steel round steel with the diameter of phi 8mm, the joint of the lower rotating shaft and the lifting cylinder supporting arm is subjected to fillet treatment, and the radius of the fillet is 20mm; the upper parts of the two lifting cylinder supporting arms are connected with a lifting cylinder supporting beam through inner hexagon bolts, the upper parts of the lifting cylinder supporting beams are connected with lifting cylinders through bolts, and lifting cylinder piston rods penetrate through the centers of the lifting cylinder supporting beams and are connected with a press-filtration sealing cover through screw threads and nuts; the upper proximity switch and the lower proximity switch are both inductive proximity switches, and are fixed on a bracket welded on the lifting cylinder supporting arm through nuts;
two sides of the lifting cylinder supporting beam are respectively provided with a rotating arm, the rotating arms are rectangular, the length dimension is 100mm, the width dimension is 30mm, and one end of each rotating arm is connected with the lifting cylinder supporting beam through an upper rotating shaft and can rotate through the upper rotating shaft; the other ends of the two rotating arms are connected with a rotating arm beam through inner hexagon bolts, and the center of the rotating arm beam is connected with left and right cylinder piston rods through threads and nuts; the middle parts of the left cylinder body and the right cylinder body are provided with swinging trunnions, the swinging trunnions are arranged on a swinging base, the swinging base is fixed on a mounting bracket by bolts, the mounting bracket is welded by adopting 8# channel steel, and the left cylinder and the right cylinder can rotate on the swinging base through the swinging trunnions; the left proximity switch and the right proximity switch are fixed on a bracket welded on the mounting plate through nuts; nuts of the left limit bolt and the right limit bolt are welded and fixed on a bracket welded on the mounting plate; the mounting plate is made of 304 stainless steel plates, the thickness dimension of the stainless steel plates is 5mm, the mounting plate is in a right trapezoid shape, the length dimension of the upper bottom edge of the right trapezoid is 120mm, the length dimension of the lower bottom edge of the right trapezoid is 240mm, the height dimension of the right waist is 80mm, and the length dimension of the inclined waist is 144mm; the filter screen that the top of seepage groove set up adopts 304 corrosion resistant plate to make, is circular form, and filter screen diameter size is phi 150mm, and filter screen thickness size is 1mm, evenly distributed is the round hole that diameter size is phi 3mm on the filter screen, and the center-to-center distance size between arbitrary adjacent two round holes on the filter screen is 5mm.
2. The automatic solid-liquid separation device for air filter pressing vertical dehydration according to claim 1, which is characterized in that: the sealing gasket arranged around the filter screen is annular, the inner diameter of the annular ring is 150mm, the outer diameter of the annular ring is 180mm, the thickness of the sealing gasket is 2mm, and the sealing gasket is embedded into the filter pressing base by 1mm to prevent the sealing gasket from falling off.
3. The automatic solid-liquid separation device for air filter pressing vertical dehydration according to claim 1, which is characterized in that: the annular water spray pipe arranged on the filter pressing sealing cover is annular, the inner diameter of the annular ring is 120mm, and the outer diameter of the annular ring is 136mm.
4. The automatic solid-liquid separation device for air filter pressing vertical dehydration according to claim 1, which is characterized in that: the lifting cylinder supporting beam is made of 304 stainless steel square bars and is cuboid, the length dimension is 210mm, and the width dimension and the height dimension are 50mm.
5. The automatic solid-liquid separation device for air filter pressing vertical dehydration according to claim 1, which is characterized in that: the upper rotating shaft is made of 304 stainless steel round steel with the diameter of phi 8mm, the joint of the upper rotating shaft and the rotating arm is subjected to fillet treatment, and the radius of the fillet is 20mm.
6. The automatic solid-liquid separation device for air filter pressing vertical dehydration according to claim 1, which is characterized in that: the rotating arm cross beam connected with the two rotating arms is made of a 304 stainless steel square rod and is in a cuboid shape, the length dimension is 230mm, and the width dimension and the height dimension are both 30mm.
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| JPH05168822A (en) * | 1991-12-19 | 1993-07-02 | Noritake Tekkosho:Kk | Two-stage type cake peeling device in filter press |
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