CN210583840U - Automatic filter press of cross operation - Google Patents
Automatic filter press of cross operation Download PDFInfo
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- CN210583840U CN210583840U CN201921094250.0U CN201921094250U CN210583840U CN 210583840 U CN210583840 U CN 210583840U CN 201921094250 U CN201921094250 U CN 201921094250U CN 210583840 U CN210583840 U CN 210583840U
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- trolley
- filter
- pulling
- inductive switch
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Abstract
The utility model discloses an automatic filter press for cross operation, which is characterized in that a cross operation device is added, a NBN12-18GM50-E2 type proximity inductive switch and the like are added at the tail end of a guide rail of a drawplate trolley and communicated with a PLC program control cabinet, and single operation cycle is automatically completed by one key through PLC plus touch display screen intelligent control; when the automatic plate pulling is finished, the plate pulling trolley approaches the inductive switch at the tail end of the guide rail, namely the plate pulling trolley does not travel the whole process, and the filter press immediately starts the next cycle operation, namely the inductive switch enables the program-controlled automatic starting filter plate to compress; when the pulling plate trolley stops when the tail end of the guide rail contacts the stroke stop plate, the motor of the pulling plate trolley induces resistance to automatically rotate reversely and returns to the original position; therefore, efficient cross operation of the filter plate pressing and the plate pulling trolley returning from head to tail is achieved, so that the intermittent time of returning the empty trolley is shortened, the operation circulation is effectively accelerated, and the production efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of the pressure filter, a cross operation's automatic pressure filter is related to.
Background
The filter press is a universal intermittent operation pressurizing and filtering device, the automatic filter press is a filter press which is automatically completed by one key through intelligent control of a PLC and a touch display screen in a single operation cycle (from filter plate pressing, feeding, squeezing, washing, blow-drying, back blowing and cake pulling and unloading), and is suitable for solid-liquid separation of various suspensions. The automatic filter press mainly comprises a frame, a pressing mechanism, a filtering mechanism, an automatic filter plate pulling mechanism (commonly called a pulling plate trolley), a hydraulic driving mechanism, an electric control system and the like. The development trend of the high-efficiency filter press is to shorten the intermittent time, accelerate the operation cycle and improve the production efficiency.
The main processes influencing the intermittence time of the filter press are the head-to-tail operation processes (pressing the filter plate and pulling the filter plate open), and the existing single-cycle and double-cycle operation processes are not intersected with each other. The pressing of the filter plate is realized by pushing a push plate by a hydraulic driving mechanism, and the pulling of the filter plate is realized by pulling a filter plate opening mechanism; the head and tail working process is as follows: when the material filter pressing is finished and the cake needs to be unloaded, the plate pulling trolley automatically moves forwards, backwards and stops on the guide rail in a reciprocating manner to pull the filter plate open, and the filter cake automatically falls off by means of gravity; when the automatic plate pulling is finished, the plate pulling trolley encounters resistance at the tail end (thrust plate end) of the guide rail and automatically returns to the original position (trolley returning to the plate pushing end) at the initial end of the guide rail; after the plate pulling trolley returns to the original position, the hydraulic driving mechanism automatically compresses the filter plate coated with the filter cloth by pushing the push plate to form the filtering mechanism.
The existing filter plate pressing and pulling plate head-to-tail operation process has the following defects: the filter plate pressing and plate pulling head-tail operation processes can not be crossed, automatic plate pulling is completed, the filter press can start next cycle operation (pressing the filter plate and the like) only when the plate pulling trolley returns to the original position, and the empty trolley returns in a few minutes after each cycle, so that the production efficiency of the filter press is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough that current automatic pressure filter head and the tail operation process can not crisscross, solving corresponding technical problem, providing an automatic pressure filter of cross operation.
The utility model provides a technical scheme that prior art problem adopted is: an automatic filter press for cross operation is composed of machine frame, pressing mechanism, filter mechanism, automatic pull-plate mechanism for filter plate (pull-plate trolley), cross operation unit, hydraulic drive mechanism and PLC program control system. Compared with the prior art, the innovative overall structure has the prominent substantive characteristics that a cross operation device is additionally arranged, and comprises a proximity inductive switch, a pull plate trolley induction point, a stroke stop plate and a PLC communication line; the overall product shape and structure static characteristics are as follows: a proximity inductive switch is additionally arranged at the tail end of the pull plate trolley guide rail and is communicated with the PLC program control cabinet; a stroke stop plate is arranged on the side surface of the tail end of the guide rail of the plate pulling trolley; the front of the pull plate trolley is provided with a pull plate trolley induction point; the dynamic 'combination' technical characteristics are as follows: when the automatic plate pulling is finished, the plate pulling trolley approaches to the proximity inductive switch at the tail end of the trolley guide rail, and the filter press immediately starts the next cycle operation, namely the proximity inductive switch enables the program-controlled automatic starting filter plate to be pressed; when the pulling plate trolley stops when the tail end of the trolley guide rail contacts the stroke stop plate, the motor of the pulling plate trolley induces resistance to automatically rotate reversely and returns to the original position; therefore, the cross operation of the filter plate pressing and the head and tail operation process of the plate pulling trolley returning is realized, the intermittent time of the empty trolley returning is shortened, and the operation circulation is effectively accelerated.
Furthermore, the additionally arranged inductive switch is an NBN12-18GM50-E2 type proximity switch, is a switch type sensor, automatically acts when the pulling plate trolley approaches, and is convenient to install and reliable in performance.
The working process of the filter press is as follows: the filter plate pressing and the plate pulling trolley returning to the head and tail operation processes are efficiently crossed, and single operation cycle (from filter plate pressing, feeding, squeezing, washing, blow-drying, back blowing and plate pulling and cake unloading) is automatically completed by one key through the PLC program control system and the touch display screen intelligent control; the more detailed whole process is as follows: (1) pressing the filter plate: the hydraulic driving mechanism automatically compresses the filter plate coated with the filter cloth by pushing the push plate to enable the filter plate to be compressed to form a multi-chamber filter mechanism; (2) starting a pump for feeding and filtering: the conveying pump conveys the solid-liquid mixed material to each filtering mechanism for low-pressure static filtering; (3) squeezing and dewatering: when squeezing is needed, high-pressure fluid or gas medium is introduced through the high-pressure medium hole to enable the diaphragm to squeeze the filter cake for the second time; (4) washing and purifying: when washing is needed, a water pump injects washing liquid into a filter cake from a washing hole in a crossed manner for washing; (5) drying and purifying: when the filter cake needs to be dried, introducing compressed air through the high-pressure medium hole, and blowing the residual washing liquid in the filter cake particle gaps through air flow; (6) back flushing the materials: when back blowing is needed, high-pressure gas back blows residual materials staying in the feeding channels of the filter plates, and the residual materials are blown back to the stirring position to facilitate feeding next time; (7) pulling a plate and unloading a cake: the feeding pump is closed, the filter plate is pulled open through the automatic filter plate pulling-open mechanism, and gravity cake unloading is realized; when the automatic plate pulling is finished, the plate pulling trolley approaches the inductive switch at the tail end of the guide rail, and the next cycle operation of the filter press is started immediately, namely the inductive switch enables the program control automatic start filter plate to be pressed; when the pulling plate trolley stops when the tail end of the guide rail contacts the stroke stop plate, the motor of the pulling plate trolley automatically induces resistance to rotate reversely and returns to the original position; therefore, efficient cross operation of filter plate pressing and plate pulling trolley returning operation processes is achieved, so that intermittent time of empty trolleys returning is shortened, operation circulation is effectively accelerated, and batch solid-liquid separation is achieved through intermittent reciprocating circulation work.
The utility model provides a pair of cross operation's automatic pressure filter, the progress that is showing has newly increased the device simple, the operation intermittent type is short, the fast advantage of circulation, and beneficial effect is that circulation operation process end to end cross efficiency is high, has broken through the prior art that pressure filter operation process can not be criss-cross, has filled china's pressure filter double-circulation end to end cross operation's blank.
Drawings
Fig. 1 is a schematic view of an automatic filter press for cross operation according to the present invention.
Fig. 2 is a schematic view of the connection of the plate pulling trolley, the trolley guide rail and the cross operation device of the automatic filter press for cross operation of the utility model.
Fig. 3 is a schematic view of the proximity inductive switch added to the automatic filter press for cross operation of the present invention.
Reference numerals: the system comprises a plate pulling trolley 1, a trolley guide rail 2, a proximity inductive switch 3, a stroke stop plate 4, a thrust plate 5, a filter plate 6, a push plate 7, a hydraulic driving mechanism 8 and a PLC program control cabinet 9 (a PLC program control system).
Detailed Description
The technical solution of the embodiment of the present invention will be described below with reference to the accompanying drawings in the embodiment of an automatic filter press for cross operation of the present invention, and it is obvious that the described embodiment is only a part of the preferred embodiments of the present invention, not all embodiments; based on the utility model discloses an embodiment, all other embodiments that technical staff in the field obtained under the prerequisite of not making creative work, like the setting that "combination" technical feature is the same, the sensing mode is different of pressure filter head and the tail cross operation device all belong to the utility model discloses a protection scope.
Example 1
An automatic filter press for cross operation is composed of machine frame, pressing mechanism, filter mechanism, automatic plate pulling mechanism (pull plate trolley) 1 for filter plate, cross operation unit, hydraulic drive mechanism 8 and PLC program control system 9. The innovative structure is as follows: a cross operation device is additionally arranged and comprises a proximity inductive switch 3, an inductive point of a pulling plate trolley 1, a stroke stop plate 4 and a PLC communication line; the proximity sensing switch 3 is a NBN12-18GM50-E2 type sensor, which is a non-contact switch type sensor. The connection relationship of each component is as follows: the proximity inductive switch 3 is arranged on the tail end (the end of the thrust plate 5) of the pull plate trolley guide rail 2 and corresponds to the induction point of the pull plate trolley 1; the induction point of the plate pulling trolley is the front of the plate pulling trolley 1; the stroke stop plate 4 is arranged on the side surface of the tail end (the end of the thrust plate 5) of the pull plate trolley guide rail 2; the proximity inductive switch 3 is communicated with the PLC program control cabinet 9 through a PLC communication line; convenient installation and reliable performance. The dynamic "binding" relationship is: when the automatic plate pulling is finished, the induction point of the plate pulling trolley approaches to the proximity induction switch 3 at the tail end of the trolley guide rail 2, namely the plate pulling trolley 1 does not run for the whole distance, and the filter press immediately starts the next cycle operation, namely the proximity induction switch 3 enables the program-controlled automatic starting filter plate 6 to be pressed; when the drawplate trolley 1 stops when the tail end of the trolley guide rail 2 contacts the stroke stop plate 4, the motor of the drawplate trolley 1 induces resistance to automatically rotate reversely and return to the original position. Therefore, efficient cross operation of the filter plate 6 in the processes of pressing and returning the plate pulling trolley 1 from head to tail is realized, so that the intermittent time of returning the empty trolley 1 is shortened, and the operation circulation is effectively accelerated; has the advantages of simple newly-added device, short operation interval and quick circulation.
Example 2
The working process of the automatic filter press for cross operation is integrally characterized in that the filter plate 6 is compressed and the plate-pulling trolley 1 is reset to carry out high-efficiency cross operation in the head-tail operation process, and single operation cycle (from filter plate compressing, feeding, squeezing, washing, blow-drying, back blowing and plate-pulling cake discharging) is automatically completed by one key through intelligent control of a PLC (programmable logic controller) program control system 9+ a touch display screen; the more detailed whole working process is as follows: (1) pressing the filter plate: the hydraulic driving mechanism 8 automatically compresses the filter plate 6 coated with filter cloth by pushing the push plate 7 to enable the filter plate to be compressed to form a multi-chamber filter mechanism; (2) starting a pump for feeding and filtering: the feed delivery pump conveys the solid-liquid mixed material to each filtering mechanism, low-pressure static filtration is carried out, particles in the material are intercepted by the filter cloth to form a filter cake, and the filtrate passes through the filter cloth and flows out of the liquid outlet hole; (3) squeezing and dewatering: when the filter cake needs to be squeezed, high-pressure fluid or gas medium is introduced through the high-pressure medium hole to enable the diaphragm to squeeze the filter cake for the second time, so that the water content of the filter cake is reduced to the lowest point, and the purity of the filter cake and the recovery rate of filtrate are improved; (4) washing and purifying: when washing is needed, washing liquid is injected into the filter cake from the washing hole in a cross mode through the water pump for washing so as to remove soluble impurities in the filter cake or recover valuable mother liquor remained in the filter cake; (5) drying and purifying: when the filter cake needs to be dried, compressed air is introduced through the high-pressure medium hole, and the air flows through to dry the residual washing liquid in the particle seams of the filter cake, so that the water content of the filter cake is reduced to the lowest point, the purity of the filter cake and the recovery rate of mother liquor are improved, and meanwhile, the regeneration of anhydrous filter cloth is realized; (6) back flushing the materials: when back blowing is needed, high-pressure gas back blows residual materials staying in the feeding channels of the filter plates, and the residual materials are blown back to the stirring position to facilitate feeding next time; (7) pulling a plate and unloading a cake: the feeding pump is closed, and the filter plate 6 is pulled open by the plate pulling trolley 1, so that gravity cake unloading is realized; when the automatic plate pulling is finished, the plate pulling trolley 1 approaches the proximity inductive switch 3 at the tail end of the guide rail, namely the plate pulling trolley 1 does not travel the whole process, and the next cycle operation of the filter press is immediately started, namely the proximity inductive switch 3 enables the program control automatic start filter plate to compress; when the drawplate trolley 1 stops when the tail end of the trolley guide rail 2 contacts the stroke stop plate 4, the motor of the drawplate trolley 1 automatically induces resistance to rotate reversely and returns to the original position; therefore, efficient cross operation of the filter plate 6 in the processes of pressing and returning the plate pulling trolley 1 to the head and the tail is realized, so that the intermittent time of returning the empty trolley 1 is shortened, the operation circulation is effectively accelerated, and batch solid-liquid separation is realized by intermittent reciprocating circulation work. The method breaks through the prior art that the operation processes of the filter presses can not be crossed, and fills the gap of the cross operation of the filter presses in China.
Claims (1)
1. An automatic filter press for cross operation comprises a frame, a pressing mechanism, a filtering mechanism, a pulling plate trolley, a cross operation device, a hydraulic driving mechanism and a PLC program control system; the device is characterized in that a cross operation device is additionally arranged, and comprises a proximity inductive switch, a pull plate trolley inductive point, a stroke stop plate and a PLC communication line; the proximity inductive switch is an NBN12-18GM50-E2 type sensor, which is a non-contact switch type sensor; the connection relationship of the extension part is as follows: the proximity inductive switch is arranged on the tail end of the pull plate trolley guide rail and corresponds to the induction point of the pull plate trolley; the induction point of the drawplate trolley is the front of the drawplate trolley; the stroke stop plate is arranged on the side surface of the tail end of the guide rail of the pull plate trolley; the proximity inductive switch is communicated with the PLC program control cabinet through a PLC communication line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921094250.0U CN210583840U (en) | 2019-07-13 | 2019-07-13 | Automatic filter press of cross operation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921094250.0U CN210583840U (en) | 2019-07-13 | 2019-07-13 | Automatic filter press of cross operation |
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| CN210583840U true CN210583840U (en) | 2020-05-22 |
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| CN201921094250.0U Active CN210583840U (en) | 2019-07-13 | 2019-07-13 | Automatic filter press of cross operation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110201431A (en) * | 2019-07-13 | 2019-09-06 | 景津环保股份有限公司 | The cross-operation setting of automatic pressure filter and its operation sequence |
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2019
- 2019-07-13 CN CN201921094250.0U patent/CN210583840U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110201431A (en) * | 2019-07-13 | 2019-09-06 | 景津环保股份有限公司 | The cross-operation setting of automatic pressure filter and its operation sequence |
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Address after: 253034 Shandong city in Dezhou Province Economic Development Zone, the first northbound Regent Patentee after: Jingjin Equipment Co.,Ltd. Address before: 253034 Shandong city in Dezhou Province Economic Development Zone, the first northbound Regent Patentee before: Jing Jin Environmental Protection Inc. |