CN202175605U - Sludge dewatering machine - Google Patents
Sludge dewatering machine Download PDFInfo
- Publication number
- CN202175605U CN202175605U CN2011202884827U CN201120288482U CN202175605U CN 202175605 U CN202175605 U CN 202175605U CN 2011202884827 U CN2011202884827 U CN 2011202884827U CN 201120288482 U CN201120288482 U CN 201120288482U CN 202175605 U CN202175605 U CN 202175605U
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- plate
- filter
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- pressure
- filter plate
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Abstract
The utility model discloses a sludge dewatering machine comprising a rack and a support plate connected with the rack, wherein the two sides of the support plate are respectively provided with a sludge pumping mechanism and a pressure extrusion mechanism; a frame plate type pressure filter mechanism is arranged between the pressure extrusion mechanism and the support plate; the pressure filter mechanism comprises a pressure filter unit; the pressure filter unit is internally provided with a filter plate; the peripheral wall of the filter plate is sheathed with an annular sleeve; a pressure filter cavity is formed between the filter plate and a front pressure plate; a piece of filter cloth is distributed on the surface of the filter plate in the pressure filter cavity; the surface of the filter plate is also provided with a filtrate drainage hole; the filtrate drainage hole is connected with a drainage channel which is arranged inside the filter plate and extends to the outside; besides, the filter plate and the surface of a rear pressure plate are connected into one body and the middle is provided with a through hole which is communicated with the pipeline of the sludge pumping mechanism. The sludge dewatering machine can improve the pressure filtration efficiency and is convenient for controlling the dryness of sludge cakes.
Description
Technical field
The utility model relates to the filter press water extracter of sludge of sewage treatment plant dehydration equipment.
Background technology
At present domestic sludge dewatering treatment technology is main with equipment with belt filter press, centrifuge; Also has a spot of traditional plate-and-frame filter press; Can only the thickened sludge of water ratio more than 93% be dewatered to water ratio 75-85%; Water ratio is 75～85% the existing problem of mud: be not easy to transportation and cost high, stack floor space greatly, can't directly dispose at all; Mud contains a large amount of organism and abundant nutrition such as nitrogen phosphorus potassium, and perishable generation stench is also multiplied mosquitos and flies, and the stench of generation causes secondary pollution; Can not directly carry out ultimate disposal, must could landfill or utilization through handling again, and adopt heat energy treatment and disposal cost high, be prone to produce secondary pollutions such as foul smell discharging.Dewatering rate is the key link that influences the follow-up disposal of mud, is that sludge treatment is disposed the technical bottleneck that can't walk around below 50% with sludge dewatering to water ratio!
Present common plate-and-frame filter press, diaphragm type plate-and-frame filter press and deeply dehydrating sludge pressure filter; In the process of mud, can press filtration go out a large amount of pressing filtering liquids through the lower mud cake of pressure filter dehydration back formation water ratio; And in present sludge press filtration water extracter; The discharge that mud is filtrated is only discharged through one or several aperture of monoblock filter plate bottom, and the plate face of so-called filter plate is plain plate face, and the pressing filtering liquid that can form like this in the monoblock mud need overcome the longer route of mud and resistance discharge greatly; Be unfavorable for the discharge of pressing filtering liquid in the mud, influence the mass dryness fraction of time of filter pressing and mud cake; In addition, because the filter plate structure has nothing in common with each other, the pressure that its defective embodies a concentrated expression of the press filtration chamber is difficult to keep, and promptly the sealing reliability in press filtration chamber is poor; Moreover the WP in the pressure-filtering process has no way of finding out about it, no matter operator's experience realizes start and stop, the valve opening and closing of transferpump, so both is unfavorable for saving energy and reduce the cost separately, can't guarantee the water ratio of mud cake simultaneously.
Summary of the invention
The purpose of the utility model just provides a kind of sludge dewatering equipment that improves press filtration efficient, is convenient to control the mud cake mass dryness fraction.
For realizing above-mentioned purpose; The utility model has adopted following technical scheme: a kind of sludge dewatering equipment; Comprise frame and be connected back up pad with frame is connected, the plate body both sides of connection back up pad are arranged sludge pumping mechanism and pressure extrusion mechanism respectively, deckle board formula pressure filtration mechanism are set in pressure extrusion mechanism with being connected between the back up pad; It is characterized in that: described deckle board formula pressure filtration mechanism comprises the press filtration unit that forward and backward pressing plate constitutes; The press filtration unit also comprises the filter plate that is provided with between the forward and backward pressing plate, is arranged with the annular cover on the periphery wall of filter plate and constitutes between the two to be slidingly matched, and a side end face of annular cover and the plate face of front pressuring plate are fitted; Be provided with between the opposite side end face of annular cover and the rear fender and order about both isolating springs; The space that surrounds between filter plate and the front pressuring plate constitutes the press filtration chamber, is positioned on the filter plate plate face in press filtration chamber to lay filter cloth, offers the filtrating drain hole on the plate face of filter plate; Drain hole and filter plate set inside and extend to outside current drainage path and link to each other, filter plate and rear fender plate face are connected as a single entity and the middle part offers the pipeline connection of through hole and sludge pumping mechanism.
Be provided with during normal the use on the filter plate plate face of outage and arrange filter cloth; Mud is transported in the press filtration chamber between front pressuring plate and the filter cloth; Front pressuring plate is driven to extruding of filter cloth one side and then extruding mud by actuating unit; Moisture in the mud gets into the cavity between the forward and backward plate body through filter cloth and outage, and the through hole discharge opeing that on screen plate plate body edge, is provided with.Because outage is that distributed and arranged is on the filter plate plate body; Mud in the press filtration chamber can be realized discharge opeing, leach from the outage that is uniformly distributed with fast in pressurized process like this; The liquid that leaches concentrates in the middle cavity of filter plate, and is discharged by the through hole that is provided with on the plate body edge.Mud pressing filtering liquid in pressure-filtering process can be discharged at nearest outage, pressing filtering liquid short via the path, efflux time is short, the discharge opeing resistance is little, the mass dryness fraction of mud cake after can shortening the dewatering time of pressure filter and improving press filtration.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the local enlarged diagram of Fig. 1;
Fig. 3 is the structural representation of the filter plate among Fig. 1;
Fig. 4 is the left view of Fig. 3.
Embodiment
Like Fig. 1,2; Sludge dewatering equipment; Comprise frame 10 and be connected back up pad 11 with frame 10 is connected, the plate body both sides of connection back up pad 11 are arranged sludge pumping mechanism and pressure extrusion mechanism respectively, deckle board formula pressure filtration mechanism are set in pressure extrusion mechanism with being connected between the back up pad 11; Described deckle board formula pressure filtration mechanism comprises the press filtration unit that forward and backward pressing plate 20,30 constitutes; The press filtration unit also comprises forward and backward pressing plate 20, filter plate 40 is set between 30, is arranged with annular cover 80 on the periphery wall of filter plate 40 and constitutes to be slidingly matched the plate face applying of a side end face of annular cover 80 and front pressuring plate 20 between the two; Be provided with between the opposite side end face of annular cover 80 and the rear fender 30 and order about both isolating springs 70; The space that surrounds between filter plate 40 and the front pressuring plate 20 constitutes the press filtration chamber, is positioned on the filter plate 40 plate faces in press filtration chamber to lay filter cloth 50, offers the drain hole 41 of filtrating on the plate face of filter plate 40; Drain hole 41 and filter plate 40 set inside and extend to outside current drainage path and link to each other, filter plate 40 and rear fender 30 plate faces are connected as a single entity and the middle part offers the pipeline connection of through hole and sludge pumping mechanism.
The instance that provides among Fig. 1 is that three press filtration unit constitute deckle board formula pressure filtration mechanism; Be convenient explanation; Be defined as A, B, three press filtration chambeies of C from left to right, contain the forward and backward pressing plate 20,30 that the press filtration unit of press filtration chamber A comprises, wherein rear fender 30 is again simultaneously the front pressuring plate that contains in the press filtration unit of press filtration chamber B; Such dual function that pressing plate plays to take over from the past and set a new course for the future has not only reduced parts but also has simplified the structure.
As specific examples; Like Fig. 3, shown in 4; Described filter plate 40 is connected as one along peripheral position by forward and backward plate body 42,43, evenly lays drain hole 41 on the plate face of the preceding plate body 42 of described filter plate 40, and this drain hole 41 and forward and backward plate body 42, the cavity 44 between 43 are communicated with; The through hole 45 that is provided with on cavity 44 and plate body 40 edges is communicated with and constitutes the discharge opeing path, and described cavity 44 is latticed.Like this, the filtrating during press filtration in the mud at first gets into cavitys 44 through drain hole 41 through filter cloth 50 again, is discharged from the shortest path, has reduced flow resistance effectively, dewatering time shortens greatly.During normal the use, should through hole 45 be placed into lowest part, to make things convenient for discharge opeing.
As shown in Figure 2; Some stepped holes 81 circumferentially evenly are set on the described annular cover 80 at interval; The two ends of the minimum-value aperture section of stepped hole 81 are the bigger hole portion in aperture, and these stepped hole 81 places are provided with locating sleeve 90, and an end outer wall of locating sleeve 90 is provided with flange 91; This flange 91 cooperates with the orifice part that stepped hole 81 is positioned at front pressuring plate 20 1 sides; Locating sleeve 90 and stepped hole 81 annular cavity between the stepped hole position of spring 70 places one side holds an end of spring 70, and the other end of spring 70 is positioned at the ring groove of being offered on the rear fender 30 31, and described locating sleeve 90 inside offer axial arranged step-like through hole 92; The bolt head of joint bolt 100 is arranged in the enlarged diameter section vestibule of through hole 92, and the shaft of bolt 100 passes in the small diameter bore of through hole 92 and is connected with rear fender 30.
When not carrying out pressure extrusion; The elastic force trend annular cover 80 of spring 70 is separated from one another with rear fender 30, and under the position-limiting action of joint bolt 100, annular cover 80 is confirmed with rear fender 30 axial spacings separated from one another simultaneously; Should guarantee that annular cover 80 is in the socket state all the time with filter plate 40 this moment; Because front pressuring plate 20 is fitted with the end face of annular cover 80, like this, the distance between front pressuring plate 20 and the filter plate 40 just is in definite state; The volume of press filtration chamber A under this state confirms that all the other press filtration chamber B, C also are same states.Cooperate the matching relationship that is appreciated that between cylinder body and the piston between annular cover 80 and the filter plate 40.It should be noted the stroke that cooperates of annular cover 80 and filter plate 40; The volume that this cooperation stroke should be guaranteed press filtration chamber A is for hour, and the through hole 45 on the filter plate 40 still is in and appears state, like this to guarantee the unimpeded of discharge opeing; As shown in Figure 2, all the other each press filtration chamber B, C are suitable equally.
As preferred version, be positioned at and lay filter cloth 60 on the front pressuring plate 20 of press filtration chamber A, B, C, between the plate face of the applying of described annular cover 80 and front pressuring plate 20 sealing-ring 110 is set.Filter cloth 60 is set is attached to the discharging that can make things convenient for mud cake on the front pressuring plate 20, the sealed state that sealing-ring 110 can be guaranteed the press filtration chamber is set.
In conjunction with Fig. 1, constitute sludge pumping mechanism 120 with pipeline 121 that the press filtration chamber is communicated with on tensimeter 122 is set, tensimeter 122 is selected electro connecting pressure gauge for use, between tensimeter 122 and the pump 123 electrically operated valve 124 is set, electrically operated valve 124 is selected electronic vacuum breaker for use.
Below sketch principle of work of the present invention:
Form the sealing load of the transfer pressure that produces greater than sludge pumping mechanism 120 by 110 pairs of formed spaces of sealing-ring, this moment ejector priming 123, the mud after with the transfer pressure of 0.6～1.0MPa dosing being handled is sent in the press filtration chamber A, B, C of this sludge dewatering equipment; When being full of rare mud in it, this moment pump 123 still in work, the sealing load that pump 123 is produced because of transfer pressure that 0.6～1.0MPa is arranged and sealing-ring 110; Be delivered in the process of press filtration chamber A, B, C at mud; Promptly have part moisture to be leached, along with the continuous operation of mud transferpump 123, sludge concentration is increasingly high in press filtration chamber A, B, the C; The pressure that is reflected on the electric contact type pressure gauge 122 is also increasing; When electric contact type pressure gauge 122 upward pressures reach set(ting)value, close electrically operated valve 124 automatically, stop the operation of pump 123 simultaneously.
After this, the trigger pressure pressing mechanism, pressure extrusion mechanism can select oil cylinder 130 for use; The force that the piston rod 131 of oil cylinder 130 provides constitutes the front pressuring plate 20 of press filtration chamber A and promotion annular cover 80 moves together and compression spring 70 is out of shape, and the volume of press filtration chamber A diminishes, and rare mud is pressurized once more; And pressure progressively is delivered on the filter plate arranged side by side of back, follow-up press filtration chamber B, the volume of C also begin compression and diminish, when WP is progressively brought up to setting pressure when piston rod 131 moves to the appropriate location; Oil cylinder 130 quits work and retreats in the other direction; Spring 70 recovers distortion, unclamps each press filtration unit, and can obtain water ratio is the half-dried mud cake below 50%.
Claims (5)
1. sludge dewatering equipment; Comprise frame (10) and be connected back up pad (11) with frame (10) is connected; The plate body both sides that connect back up pad (11) are arranged sludge pumping mechanism and pressure extrusion mechanism respectively; Deckle board formula pressure filtration mechanism is set in pressure extrusion mechanism with being connected between the back up pad (11); It is characterized in that: described deckle board formula pressure filtration mechanism comprises the press filtration unit that forward and backward pressing plate (20,30) constitutes; The press filtration unit also comprises the filter plate (40) that is provided with between the forward and backward pressing plate (20,30), is arranged with annular cover (80) on the periphery wall of filter plate (40) and constitutes between the two to be slidingly matched, and a side end face of annular cover (80) and the plate face of front pressuring plate (20) are fitted; Be provided with between the opposite side end face of annular cover (80) and the rear fender (30) and order about both isolating springs (70); The space that surrounds between filter plate (40) and the front pressuring plate (20) constitutes the press filtration chamber, is positioned on filter plate (40) the plate face in press filtration chamber to lay filter cloth (50), offers the drain hole (41) of filtrating on the plate face of filter plate (40); Drain hole (41) and filter plate (40) set inside and extend to outside current drainage path and link to each other, filter plate (40) and rear fender (30) plate face are connected as a single entity and the middle part offers the pipeline connection of through hole and sludge pumping mechanism.
2. sludge dewatering equipment according to claim 1; It is characterized in that: described filter plate (40) is connected as one along peripheral position by forward and backward plate body (42), (43); Evenly lay drain hole (41) on the plate face of the preceding plate body (42) of described filter plate (40); This drain hole (41) is communicated with cavity (44) between forward and backward plate body (42), (43); The through hole (45) that is provided with on cavity (44) and the plate body edge is communicated with and constitutes the discharge opeing path, and described cavity (44) is latticed.
3. sludge dewatering equipment according to claim 1; It is characterized in that: described annular cover (80) is gone up some stepped holes (81) circumferentially evenly is set at interval; The two ends of the minimum-value aperture section of stepped hole (81) are the bigger hole portion in aperture; This stepped hole (81) locates to be provided with locating sleeve (90); One end outer wall of locating sleeve (90) is provided with flange (91); This flange (91) is positioned at front pressuring plate (20) one side opening oral areas with stepped hole (81) and cooperates; Locating sleeve (90) and stepped hole (81) are positioned at the end that annular cavity between the stepped hole position of spring (70) place one side holds spring (70), and the other end of spring (70) is positioned at the ring groove of being offered on the rear fender (30) (31), and described locating sleeve (90) inside offers axial arranged step-like through hole (92); The bolt head of joint bolt (100) is arranged in the enlarged diameter section vestibule of through hole (92), and the shaft of bolt (100) passes in the small diameter bore of through hole (92) and is connected with rear fender (30).
4. sludge dewatering equipment according to claim 1 is characterized in that: the front pressuring plate (20) that is positioned at the press filtration chamber is gone up laying filter cloth (60), between the plate face of the applying of described annular cover (80) and front pressuring plate (20) sealing-ring (110) is set.
5. sludge dewatering equipment according to claim 1; It is characterized in that: on the pipeline (121) that is communicated with the press filtration chamber of formation sludge pumping mechanism (120) tensimeter (122) is set, between tensimeter (122) and the pump (123) electrically operated valve (124) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202884827U CN202175605U (en) | 2011-08-10 | 2011-08-10 | Sludge dewatering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202884827U CN202175605U (en) | 2011-08-10 | 2011-08-10 | Sludge dewatering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202175605U true CN202175605U (en) | 2012-03-28 |
Family
ID=45865500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202884827U Expired - Lifetime CN202175605U (en) | 2011-08-10 | 2011-08-10 | Sludge dewatering machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202175605U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267794A (en) * | 2011-08-10 | 2011-12-07 | 安徽省通源环境节能有限公司 | Sludge dehydrator |
| CN112777770A (en) * | 2021-01-13 | 2021-05-11 | 李国平 | Portable outdoor micro-filtration purifier for water purification |
-
2011
- 2011-08-10 CN CN2011202884827U patent/CN202175605U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267794A (en) * | 2011-08-10 | 2011-12-07 | 安徽省通源环境节能有限公司 | Sludge dehydrator |
| CN112777770A (en) * | 2021-01-13 | 2021-05-11 | 李国平 | Portable outdoor micro-filtration purifier for water purification |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120328 Effective date of abandoning: 20130410 |
|
| RGAV | Abandon patent right to avoid regrant |