CN2202575Y - Air-locking sealing material discharger for pressing filtering machine - Google Patents
Air-locking sealing material discharger for pressing filtering machine Download PDFInfo
- Publication number
- CN2202575Y CN2202575Y CN 94211414 CN94211414U CN2202575Y CN 2202575 Y CN2202575 Y CN 2202575Y CN 94211414 CN94211414 CN 94211414 CN 94211414 U CN94211414 U CN 94211414U CN 2202575 Y CN2202575 Y CN 2202575Y
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- discharge
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- plate valve
- ring seat
- slide plate
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Abstract
The utility model relates to an air locking sealing material discharger for pressurizing filtering machines. The utility model is suitable for discharging solid materials when the difference between the inside pressure and the outside pressure of a filtering medium is large. The air locking sealing material discharger for pressurizing filtering machine comprises an upper material bin, a lower material bin, a discharge opening, an upper discharge sliding plate valve body arranged between the upper end of the lower material bin and an upper sealing ring base fixed on the lower end of the upper material bin, and a lower discharge sliding plate valve body arranged between the upper end of the discharge opening and a lower sealing ring base fixed on the lower end of the lower material bin. The upper material bin, the lower material bin and the discharge opening are connected with the lower part of a pressurizing bin. When the upper discharge sliding plate valve body is opened, materials are discharged to the lower material bin, and the upper discharge sliding plate valve body is immediately closed. When the lower discharge sliding plate valve body is opened, materials are discharged, and the lower discharge sliding plate valve body is then closed. Thus, air locking sealing discharge is implemented alternatively.
Description
The present invention relates to a kind of material transfer equipment, particularly relate to the filter medium inner and outer air pressure difference of slurry by filtration dewaterer when big, sealing is discharged the device of solid material.
At present, domestic to the floatation clean coal dehydration, publish book number ISBN-5020-0703-2/TD.647 in April, 1993 just like the Coal Industry Press, " coal separation handbook technology and the described three kinds of modes of equipment volume 620-648 page or leaf, the one, the disc vacuum filter that generally adopts; The 2nd, screen-bowl centrifuge; The 3rd, the product after filtering is used the firepower drying again.For solving the higher problem of floatation clean coal product moisture content, the domestic in recent years development of having carried out pressing filter, but still unexposed use.
The basic structure of pressing filter, be that main body with disk filter places in the pressurization storehouse of cylindrical seal, the compressed air with the 0.25-0.3 MPa is generally filled in the pressurization storehouse, the cleaned coal slurry filter cake after pressure filtration drops down onto on the scratch board conveyor in the pressurization storehouse, and the sealed discharging device that is transported to pressurization bottom, storehouse is discharged.Wherein sealed discharging device is a key equipment, and it is under the pressure filtration state, and solid and gas is separated, and discharges solid material, requires the compressed air in the pressurization storehouse to leak, otherwise, will cause solid material in the pressurization storehouse, to be piled up, cause the stopping production accident; Gas leak is too much, and power consumption will be increased, even causes solid and gas liquid to mix the accident of ejection.
Present domestic and international existing solid and gas separate lock gas discharge device, just like Chinese patent disclosed notification number CN2058172U in 13 days June nineteen ninety, the patent No. 89218070.6, " double-deck lock gas discharge machine " patent is used for sealing discharge under the big situation of machine inside and outside differential pressure.Its primary structure is that upper strata discharge lock gas impeller, lower floor's discharge lock gas impeller are set in discharging cylinder, the material that enters unloading house will return turnback with impeller, fall into down unloading house, return turnback with impeller again, unloading house in the pinning, the material of following unloading house is discharged, and alternately realizes continuous sealing discharging and so forth.This discharge machine is applicable to the drying machine discharge, obtains good effect.But,, have must not calm the anger of 0.25-0.3 MPa in its pressurization storehouse and leak sealing discharge device that must be tighter for the positive-pressure type pressing filter.
Task of the present invention provides the sealing discharge device of a kind of double-deck slide type blow-off valve, alternating movement and inflatable seal structure.
Its technical scheme is as follows:
Connect feeding bin, blanking bin, discharge gate in pressurization bottom, storehouse, it is characterized in that the feeding bin lower end connects firmly the upper sealing ring seat, set firmly discharge slide plate valve body between upper sealing ring seat and the blanking bin upper end, the blanking bin lower end connects firmly the lower seal ring seat, set firmly down discharge slide plate valve body between lower seal ring seat and the discharge gate upper end, Expansion sealing mechanism is set in the upper sealing ring seat, Expansion sealing mechanism is set down in the lower seal ring seat.Open discharge slide plate valve body, solid material drains into blanking bin, closes then and closes discharge slide plate valve body, opens down discharge slide plate valve body, and the blanking bin solid material is discharged from discharge gate, closes down discharge slide plate valve body.The upper and lower sealing discharging of alternately realizing like this.
Describe structure of the present invention and embodiment in detail below in conjunction with accompanying drawing.
Fig. 1 represents front section view of the present invention.
Fig. 2 presentation graphs 1 is along the B-B cutaway view.
Fig. 3 represents the local amplification view of Figure 1A portion.
The sealing discharge device of the pressing filter of representing as Fig. 1 comprises the feeding bin 1 that is connected with pressurization 11 bottoms, storehouse, and connects blanking bin 6, discharge gate 12 according to this down.The lower end of feeding bin connects firmly upper sealing ring seat 18, sets firmly discharge slide plate valve body 4 between the upper end of it and blanking bin; As Fig. 2, installing upper slide 3 in last discharge slide plate valve body, upper slide and the sliding-contact of upper sealing ring seat; The front end of upper piston rod 17 and upper slide front end are hinged, and extend into below upper slide in the hydraulic cylinder 5, and the upper piston rod rear end connects firmly mutually with upper piston 16, and the rear end of last hydraulic cylinder and last discharge slide plate valve body are hinged.The lower end of blanking bin connects firmly lower seal ring seat 23, set firmly down discharge slide plate valve body 9 between the upper end of it and discharge gate, this valve body is identical with the structure of aforementioned upward discharge slide plate valve body, is promptly installing lower skateboard 21, lower skateboard and the sliding-contact of lower seal ring seat in the discharge slide plate valve body down; The front end of lower piston rod 8 and lower skateboard front end are hinged, and extend into down below lower skateboard in the hydraulic cylinder 10, and its lower piston rod rear end connects firmly mutually with lower piston 24, and the rear end of following hydraulic cylinder is hinged with following discharge slide plate valve body.As Fig. 2, the front portion of last hydraulic cylinder 5, following hydraulic cylinder 10 communicates with preceding fluid flow tube 14, and the rear portion communicates with back fluid flow tube 15, and preceding fluid flow tube, back fluid flow tube are communicated with the hydraulic pump of pressing filter.As Fig. 1, the last Expansion sealing mechanism 13 that is provided with in the upper sealing ring seat 18, with the following Expansion sealing mechanism 7 that is provided with in the lower seal ring seat 23, its structure is identical, as Fig. 3, comprise the hollow annular rubber seal 2 that embeds in the seal ring seat, air chamber 22, the gas tube 19 and the locking nut 20 that communicate with air chamber are formed, and gas tube links to each other with pressure fan.
Before the discharge of representing as Fig. 1, last discharge slide plate valve body 4, down discharge slide plate valve body 9 be in close, sealing state, wherein sealing is by last Expansion sealing mechanism 13, Expansion sealing mechanism 7 down, promptly inflate in air chamber 22 from gas tube 19 by pressure fan, hollow annular rubber seal 2 is expanded, and push upper slide 3, lower skateboard 21, general the blowing pressure makes feeding bin 1, blanking bin 6 strict sealings greater than the pressure in the pressurization storehouse 11.Solid material after dehydration in the pressurization storehouse is transported to feeding bin by scratch board conveyor 26, and level-sensing device 25 indicates certain controlling level, when needing discharge, at first discharges the decompression of air chamber gas, and hollow annular rubber seal and upper slide get loose; Start hydraulic pump simultaneously, high pressure liquid stream enters hydraulic cylinder 5 by preceding fluid flow tube 14, promotes upper piston 16, and moves after driving upper piston rod 17 and upper slide 3, opens feeding bin, and solid material drains into blanking bin 6; High pressure liquid enters hydraulic cylinder by back fluid flow tube 15 immediately, promotes upper piston, and drives upper piston rod and upper slide reach, close feeding bin, pressure fan is inflated to air chamber from gas tube simultaneously, the hollow annular rubber seal is expanded push upper slide, reaches strict sealing.Carry out the blanking bin discharge with following discharge slide plate valve body then, it moves with aforementioned, promptly at first discharges the air chamber gas decompression of Expansion sealing mechanism down, and hollow annular rubber seal and lower skateboard get loose; High pressure liquid enters down hydraulic cylinder 10 simultaneously, promotes lower piston 24, and moves after driving lower piston rod 8 and lower skateboard 21, opens blanking bin, and solid material is discharged from discharge gate 12; High pressure liquid enters down hydraulic cylinder immediately, promotes lower piston, and drives lower piston rod and lower skateboard reach, closes blanking bin, makes down the inflation of Expansion sealing mechanism simultaneously, and hollow annular rubber seal expansion extruding lower skateboard reaches strict sealing.Repeat said process, realize alternately sealing discharge.
The present invention cuts off the machine compressed air effectively and does not leak outside owing to adopt hydraulic control discharge sluice valve and use Expansion sealing mechanism, and upper and lower slide plate and sealing mechanism get loose during discharge, greatly reduces wearing and tearing, prolongs its service life.
Claims (4)
1, a kind of sealing discharge device of pressing filter, comprise the feeding bin 1, blanking bin 6, the discharge gate 12 that are connected with pressurization 11 bottoms, storehouse, it is characterized in that the feeding bin lower end connects firmly upper sealing ring seat 18, set firmly discharge slide plate valve body 4 between upper sealing ring seat and the blanking bin upper end; The blanking bin lower end connects firmly lower seal ring seat 23, sets firmly down discharge slide plate valve body 9 between lower seal ring seat and the discharge gate upper end; Expansion sealing mechanism 13 is set in the upper sealing ring seat, Expansion sealing mechanism 7 is set down in the lower seal ring seat.
2, according to the described discharge device of claim 1, it is characterized in that installing upper slide 3 in the discharge slide plate valve body, the front end of upper piston rod 17 and upper slide front end are hinged, and extend into below upper slide in the hydraulic cylinder 5, and the upper piston rod rear end connects firmly mutually with upper piston 16; Installing lower skateboard 21 in the following discharge slide plate valve body, the front end of lower piston rod 8 and lower skateboard front end are hinged, and extend into down below lower skateboard in the hydraulic cylinder 10, and the lower piston rod rear end connects firmly mutually with lower piston 24.
3, according to claim 1 or 2 described discharge devices, it is characterized in that hydraulic cylinder 5, the front portion of following hydraulic cylinder 10 communicates with preceding fluid flow tube 14, and the rear portion communicates with back fluid flow tube 15.
4, according to the described discharge device of claim 1, it is characterized in that Expansion sealing mechanism 13, following Expansion sealing mechanism 7 comprise the hollow annular rubber seal 2 that embeds in the seal ring seat respectively, air chamber 22, the gas tube 19 and the locking nut 20 that communicate with air chamber are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94211414 CN2202575Y (en) | 1994-05-13 | 1994-05-13 | Air-locking sealing material discharger for pressing filtering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94211414 CN2202575Y (en) | 1994-05-13 | 1994-05-13 | Air-locking sealing material discharger for pressing filtering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2202575Y true CN2202575Y (en) | 1995-07-05 |
Family
ID=33828544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94211414 Expired - Fee Related CN2202575Y (en) | 1994-05-13 | 1994-05-13 | Air-locking sealing material discharger for pressing filtering machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2202575Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101693842A (en) * | 2009-10-15 | 2010-04-14 | 武汉凯迪科技发展研究院有限公司 | Gas lock transportation technology and device thereof for biomass high-pressure retort charcoal product |
| CN105457380A (en) * | 2016-01-12 | 2016-04-06 | 密友集团有限公司 | Security linkage protection structure for three-in-one kettle |
-
1994
- 1994-05-13 CN CN 94211414 patent/CN2202575Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101693842A (en) * | 2009-10-15 | 2010-04-14 | 武汉凯迪科技发展研究院有限公司 | Gas lock transportation technology and device thereof for biomass high-pressure retort charcoal product |
| CN101693842B (en) * | 2009-10-15 | 2012-09-05 | 武汉凯迪工程技术研究总院有限公司 | Gas lock transportation technology and device thereof for biomass high-pressure retort charcoal product |
| CN105457380A (en) * | 2016-01-12 | 2016-04-06 | 密友集团有限公司 | Security linkage protection structure for three-in-one kettle |
| CN105457380B (en) * | 2016-01-12 | 2017-07-04 | 密友集团有限公司 | A kind of safety interaction safeguard structure of three-in-one kettle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |