CN107617255B - Blowing control device for discharging cake of disc type filter - Google Patents
Blowing control device for discharging cake of disc type filter Download PDFInfo
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- CN107617255B CN107617255B CN201711126354.0A CN201711126354A CN107617255B CN 107617255 B CN107617255 B CN 107617255B CN 201711126354 A CN201711126354 A CN 201711126354A CN 107617255 B CN107617255 B CN 107617255B
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Abstract
The invention belongs to the technical field of mineral separation dehydration equipment, and particularly relates to a blowing control device for cake discharging of a disc filter, which comprises a rotary main shaft, a distribution head, a vent pipe and a rotary main shaft, wherein the rotary main shaft is connected with a rotary disc assembly, a blowing controller is arranged in the blowing vent hole, the vent pipe is connected with an air switch, the rotary disc assembly comprises a rotary disc, a group of radial pull rods, a group of clamping groove blocks, a group of permanent magnet induction square irons and a loading and unloading pull ring, the air switch comprises a switch valve body, a piston type valve and a high-pressure air source pipe, the piston type valve comprises a piston guide rod, a spring assembly, a magnet handle, a coil assembly and pistons A, B and C.
Description
Technical Field
The invention belongs to the technical field of mineral separation and dehydration equipment, and particularly relates to a blowing control device for cake discharging of a disc filter.
Background
The disk filter is widely applied to the dehydration operation of solid powder due to the characteristics of continuous operation, large unit area treatment capacity, small occupied area and the like. The cake discharge of the current disc filter comprises two modes of a scraper type and a blowing type. Scraper type is unloaded and is left certain clearance between scraper blade and filter cloth in order to prevent the damage of scraper blade to the filter cloth, will remain a thin layer filter cake on the filter cloth like this, and this layer filter cake time length can influence the filter effect because of blockking up to this kind of filter of unloading the cake mode need shut down after working a period and wash the filter cloth, and the operation rate is lower. The blowing type cake discharging is adopted, each filter fan can remove the filter cake on the filter cloth in the cake discharging area through the air blast of the positive pressure air in the filter cavity, the cake discharging is more thorough, and the operating rate of the filter is high. But the mode of blowing and discharging cake requires that each filtering fan blows when moving to the cake discharging area, the blowing mechanism requires short-time high-pressure blowing, and the blowing time required by filter cakes with different thicknesses and viscosity characteristics is different, so that the blowing control device for discharging cake of disc type filtering machine, which has timely blowing and simple and adjustable blowing time and can adapt to various filter cakes with different properties, is necessary to be developed.
Disclosure of Invention
The invention aims to provide a blowing control device for discharging cakes of a disc type filter, which can blow in time and has simple and adjustable blowing time and can adapt to various filter cakes with different properties.
The invention is realized by the following technical scheme:
the invention relates to a blowing control device for discharging cakes of a disc type filter, which comprises a rotary main shaft on the filter, a distribution head and a vent pipe connected with the distribution head, wherein a blowing air hole is formed in the distribution head and is connected with the vent pipe, the end part of the rotary main shaft is connected with a rotary disc assembly, a blowing controller is arranged in the blowing air hole and is connected with an air switch, the switching signal of the blowing controller is communicated with the switching signal of the air switch, the rotary disc assembly comprises a rotary disc, a group of radial pull rods uniformly distributed on the outer circumference of the rotary disc, a group of clamping groove blocks correspondingly arranged on the outer end head of the group of radial pull rods, a group of permanent magnet induction square irons correspondingly arranged on the group of clamping groove blocks and a loading and unloading pull ring correspondingly arranged on the group of permanent magnet induction square irons, the disc is fixedly connected with the end part of the rotary main shaft, strip-shaped clamping grooves are formed in the clamping grooves, and the permanent magnet induction square irons are inserted in the strip-shaped clamping grooves.
The air switch consists of a switch valve body with a channel, a piston valve which is connected with the inner wall of the channel of the switch valve body in a sliding way, and a high-pressure air source pipe which is communicated with the channel of the switch valve body, wherein the piston valve consists of a piston guide rod, a spring component which is connected with one end of the piston guide rod, a magnet handle which is connected with the other end of the piston guide rod, coil components which are arranged at two sides of the magnet handle and sequentially fixed on a piston A, a piston B and a piston C on the piston guide rod, the switch valve body is provided with an air inlet and an air outlet which are communicated with the channel of the switch valve body, the air inlet and the air outlet are respectively and correspondingly connected with the high-pressure air source pipe and a vent pipe, the coil components and the spring components are respectively and symmetrically fixed in the channel of the switch valve body, and the outer circle surfaces of the piston A, the piston B and the piston C are in sliding connection with the inner surface of the channel of the switch valve body.
When the position of the magnet shank is between the coil assemblies: the piston A and the piston B form an independent inner cavity I in a channel of the switch valve body, the independent inner cavity I is communicated with the air inlet, the piston B and the piston C form an independent inner cavity II in the channel of the switch valve body, the independent inner cavity II is communicated with the air outlet, and when the magnet handle is positioned outside the coil assembly: and the piston A and the piston C form a communicating inner cavity in a channel of the switch valve body, and the communicating inner cavity is simultaneously communicated with the air inlet and the air outlet to form a ventilation pipeline.
The diameter of the circumscribed circle of the permanent magnet induction square iron is smaller than the inner diameter of the air blowing hole.
The position of the permanent magnet induction square iron is positioned in an induction area of the blowing controller.
The blowing controller is an eddy current type or capacitance type proximity switch.
The invention has the advantages that:
(1) The blowing controller adopts a signal induction proximity switch mode, the air switch adopts an electromagnetic induction mode, the control is full-automatic control, the structure is simple, the action is rapid, the automation degree is high, the air is rapidly switched on and off, and the air is completely acted on an effective blowing operation area, so that the air consumption for blowing is reduced;
(2) The blowing controller adopts a signal induction proximity switch mode, the length of the blowing time is controlled by the contact time of the induction area of the controller and the induction magnet, the contact time can be controlled by the width of the induction magnet, and the induction magnet can be replaced, so that the adjustable length of the blowing time is realized, and the blowing effect is effectively controlled.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 isbase:Sub>A cross-sectional view A-A of FIG. 1 in accordance with the present invention;
FIG. 3 is a cross-sectional view B-B of FIG. 1 in accordance with the present invention;
FIG. 4 is an enlarged view of the closed state of the air switch of the present invention;
fig. 5 is an enlarged view of an on state of the air switch of the present invention.
Sequence numbers in the figure: 1. rotating the main shaft; 2. rotating the disc; 3. a blowing controller; 4. an air switch; 5. a radial pull rod; 6. filtering the fan; 7. a groove clamping block; 8. permanent magnet induction square iron; 9. assembling and disassembling the pull ring; 10. blowing air holes; 11. a dispensing head; 12. a piston guide rod; 13. a spring assembly; 14. a magnet handle; 15. a coil assembly; 16. a high pressure gas supply pipe; 17. a breather pipe; 18. an air outlet; 19. an air inlet; 20. a piston A; 21. a piston B; 22. a piston C; 23. an independent inner cavity II; 24. an independent inner cavity I; 25. a switch valve body; 26. the inner cavity is communicated; 27. a filter disc.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings.
As shown in figures 1, 2 and 3, the blowing control device for cake discharging of the disc type filter comprises a rotating main shaft 1 on the filter, a distribution head 11 and a vent pipe 17 connected with the distribution head, wherein a blowing air hole 10 is formed in the distribution head and is connected with the vent pipe, the end part of the rotating main shaft is connected with a rotating disc assembly, a blowing controller 3 is arranged in the blowing air hole and is connected with an air switch 4, a switching signal of the blowing controller is communicated with a switching signal of the air switch, and once the blowing controller sends a switching signal, the air switch is in a channel switching-on state. The rotary disc assembly comprises a rotary disc 2, a group of radial pull rods 5 which are uniformly distributed on the outer periphery of the rotary disc, a group of clamping groove blocks 7 which are correspondingly arranged on the outer end heads of the group of radial pull rods, a group of permanent magnet induction square irons 8 which are correspondingly arranged on the group of clamping groove blocks, and a loading and unloading pull ring 9 which is correspondingly arranged on the group of permanent magnet induction square irons, wherein the disc is fixedly connected with the end part of the rotary main shaft, the clamping groove blocks are provided with strip-shaped clamping grooves, and the permanent magnet induction square irons are inserted into the strip-shaped clamping grooves. The filter disc 27 is evenly distributed with a plurality of filter fans, the number of the radial pull rods 5 is the same as that of the filter fans, the longitudinal center lines of the radial pull rods coincide with the fan-shaped radial central axes of the filter fans, the longitudinal center lines of the strip-shaped clamping grooves are perpendicular to the fan-shaped radial central axes, and the assembling and disassembling pull rings 9 are used for inserting or extracting the permanent magnet induction square iron.
As shown in fig. 4 and 5, the air switch comprises a switch valve body 25 with a channel, a piston valve slidably connected with the inner wall of the channel of the switch valve body, and a high-pressure air source pipe 16 communicated with the channel of the switch valve body, wherein the piston valve comprises a piston guide rod 12, a spring assembly 13 connected with one end of the piston guide rod, a magnet handle 14 connected with the other end of the piston guide rod, coil assemblies 15 arranged at two sides of the magnet handle, and a piston a20, a piston B21 and a piston C22 sequentially fixed on the piston guide rod, the switch valve body is provided with an air inlet 19 and an air outlet 18 communicated with the channel, the air inlet and the air outlet are respectively and correspondingly connected with the high-pressure air source pipe 16 and the vent pipe 17, the coil assemblies and the spring assemblies are respectively and symmetrically fixed in the channel of the switch valve body, and the outer circular surfaces of the piston a, the piston B and the piston C are slidably connected with the inner surface of the channel of the switch valve body.
As shown in fig. 4, when the position of the magnet shank is between the coil assemblies: the piston A and the piston B form an independent inner cavity I24 in the channel of the switch valve body, the independent inner cavity I is communicated with the air inlet, the piston B and the piston C form an independent inner cavity II 23 in the channel of the switch valve body, the independent inner cavity II is communicated with the air outlet, the state is the closing state of the air switch and the coil power-off state of the coil assembly, the air inlet and the air outlet are independent respectively, high-pressure air cannot enter the vent pipe,
as shown in fig. 5, when the position of the magnet shank is outside the coil assembly: the piston A and the piston C form a communicating inner cavity 26 in the channel of the switch valve body, and the communicating inner cavity is communicated with the air inlet and the air outlet simultaneously to form a ventilation pipeline. This state is air switch's the on-state, also is coil powered on state of coil pack, and the magnetic field of coil at this moment and magnet handle repel each other, and then forces the piston guide arm to remove along the spring direction, and the spring is compressed, and all pistons follow the removal, open two independent inner chambers I, II, and air inlet and gas outlet communicate each other, and high-pressure gas passes through high-pressure gas source pipe and gets into breather pipe and blow the gas pocket.
As shown in fig. 1, 2 and 3, the diameter of the circumscribed circle of the permanent magnet induction square iron is smaller than the inner diameter of the air blowing hole. The permanent magnet induction square iron can be replaced or detached through the air blowing hole, and the permanent magnet induction square iron can be conveniently pulled out or inserted from the strip-shaped clamping groove in the rotating disc.
The position of the permanent magnet induction square iron is positioned in an induction area of the blowing controller. The blowing controller can sense the signal accurately.
The blowing controller is an eddy current type or capacitance type proximity switch.
When the proximity switch induction area induces a certain permanent magnet induction square iron, the opening signal is switched on, the air switch is switched on until the permanent magnet induction square iron rotates away from the induction area, the proximity switch is switched on and switched off, and the air switch is switched off.
The blowing control device for discharging the cakes of the disc type filter is automatically controlled through signals, manual work is not needed, and the operation and the control are quick and convenient.
Claims (2)
1. The utility model provides a disk filter unloads cake and uses controlling means that bloies, includes the rotary spindle on the filter, distribution head and the breather pipe that is connected with this distribution head, the distribution head on be equipped with the gas pocket of blowing, this blow the gas pocket with the breather pipe be connected, the breather pipe be connected with air switch, the gas pocket of blowing in be equipped with the controller of blowing, the switching signal of the controller of blowing with air switch's switching signal is linked together, its characterized in that: the end part of the rotating main shaft is connected with a rotating disc assembly, the rotating disc assembly comprises a rotating disc, a group of radial pull rods which are uniformly distributed on the outer periphery of the rotating disc, a group of clamping groove blocks which are correspondingly arranged on the outer end heads of the group of radial pull rods, a group of permanent magnet induction square irons which are correspondingly arranged on the group of clamping groove blocks and a loading and unloading pull ring which is correspondingly arranged on the group of permanent magnet induction square irons, the disc is fixedly connected with the end part of the rotating main shaft, strip-shaped clamping grooves are formed in the clamping groove blocks, and the permanent magnet induction square irons are inserted in the strip-shaped clamping grooves;
the air switch consists of a switch valve body with a channel, a piston valve which is connected with the inner wall of the channel of the switch valve body in a sliding way, and a high-pressure air source pipe which is communicated with the channel of the switch valve body, wherein the piston valve consists of a piston guide rod, a spring assembly which is connected with one end of the piston guide rod, a magnet handle which is connected with the other end of the piston guide rod, coil assemblies which are arranged at two sides of the magnet handle, and a piston A, a piston B and a piston C which are sequentially fixed on the piston guide rod;
when the position of the magnet shank is between the coil assemblies: the piston A and the piston B form an independent inner cavity I in a channel of the switch valve body, the independent inner cavity I is communicated with the air inlet, the piston B and the piston C form an independent inner cavity II in the channel of the switch valve body, the independent inner cavity II is communicated with the air outlet, and when the magnet handle is positioned outside the coil assembly: the piston A and the piston C form a communicating inner cavity in a channel of the switch valve body, and the communicating inner cavity is simultaneously communicated with the air inlet and the air outlet to form a ventilation pipeline;
the length of the air blowing time is controlled by the contact time of the induction area of the air blowing controller and the induction magnet, and the contact time can be controlled by the width of the induction magnet;
the diameter of the circumscribed circle of the permanent magnet induction square iron is smaller than the inner diameter of the air blowing hole;
the position of the permanent magnet induction square iron is positioned in an induction area of the blowing controller.
2. A blower control device for a disk filter cake discharge as claimed in claim 1, wherein: the blowing controller is an eddy current type or capacitance type proximity switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711126354.0A CN107617255B (en) | 2017-11-15 | 2017-11-15 | Blowing control device for discharging cake of disc type filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711126354.0A CN107617255B (en) | 2017-11-15 | 2017-11-15 | Blowing control device for discharging cake of disc type filter |
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| CN107617255A CN107617255A (en) | 2018-01-23 |
| CN107617255B true CN107617255B (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711126354.0A Active CN107617255B (en) | 2017-11-15 | 2017-11-15 | Blowing control device for discharging cake of disc type filter |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108211483B (en) * | 2018-02-28 | 2023-03-07 | 中冶北方（大连）工程技术有限公司 | Disc type filter main shaft |
| CN108619843B (en) * | 2018-06-05 | 2020-11-13 | 山西中信金石实业有限公司 | Industrial waste gas desulfurization denitration dust collecting equipment |
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