CN209052576U - A kind of deep dehydration system of residual active sludge - Google Patents

Abstract

The utility model relates to sewage, sludge treatment field, and in particular to a kind of deep dehydration system of residual activity mud.The specific technical proposal is: a kind of deep dehydration system of residual active sludge, including feeding device, conveying device and dehydration device, feeding device include feed hopper, the blender being arranged in feed hopper and the Water tank being arranged in below feed hopper；Conveying device includes conveyer belt, and conveyer belt includes tilting section and horizontal segment, and permeable pore is densely covered on conveyer belt；Tilting section is equipped with electrode plate along conveyer belt, and electrode plate includes the first anode plate and the first cathode plate for being arranged in conveyer belt two sides；The middle and upper part of tilting section is equipped with the first scraper plate, the second scraper plate is arranged in lower end.The utility model solves the problems, such as that small existing sludge dewatering range, low efficiency and dehydration are halfway, keeps sludge dewatering more thorough, sludge mass dryness fraction has obtained effective promotion.

Description

A kind of deep dehydration system of residual active sludge

Technical field

The utility model relates to sewage, sludge treatment field, and in particular to a kind of deep dehydration system of residual activity mud System.

Background technique

Electroosmotic dewatering drying technique is a kind of sludge dewatering technology newly developed, it by solid-liquid separation technique and sludge from The electrochemical properties and physical chemistry processing technique that body has organically combine, and are dehydrated using " electric power ", have more The kind unexistent many features of dehydration technology, it can make the moisture content of active excess sludge drop to 60% hereinafter, this is other Mechanical dehydration method is unapproachable, particularly evident for biochemical sludge dehydrating effect.

Electroosmotic dewatering is to apply certain DC voltage to sludge, using sludge particle and hydrone mutually to opposite The phenomenon that polar orientation separate mobile, is dehydrated, and is not necessarily to apply high pressure in dehydration, but is needed to add centainly Mechanical pressure have with electrode plate to ensure sludge during the dehydration process it is good contact, and use applied mechanical pressure, there are de- The problems such as water range is small and dehydration is not thorough, influences the dehydration efficiency of sludge.

Utility model content

In view of the deficiencies of the prior art, the utility model provides a kind of deep dehydration system of residual activity mud, solution It has determined small existing sludge dewatering range, low efficiency and the halfway problem of dehydration.

In order to achieve the above object, the utility model is achieved by the following technical programs:

A kind of deep dehydration system of residual active sludge, including feeding device, conveying device and dehydration device,

The feeding device includes feed hopper, the blender being arranged in feed hopper and the draining being arranged in below feed hopper Slot；

The conveying device includes conveyer belt, and the conveyer belt includes tilting section and horizontal segment, is gathered on the conveyer belt There is permeable pore；The tilting section is equipped with electrode plate along the conveyer belt, and the electrode plate includes being arranged in the conveying First anode plate and the first cathode plate with two sides；The middle and upper part of the tilting section is equipped with the first scraper plate, lower end setting second is scraped Plate, first scraper plate are the fixed fixation scraper plate in position, and second scraper plate is that the edge of a knife can be separate or close to the conveyer belt Scalable scraper plate；

The dehydration device is arranged on the horizontal segment of the conveyer belt.

Preferably, it is hinged with connecting rod on second scraper plate, the other end of the connecting rod is fixedly connected with blade, institute The middle position for stating connecting rod is hinged with fixed link, and the fixed link is fixedly connected on the frame body of the conveying device；It is described Blade position is corresponding with the first anode plate interior plate face.

Preferably, the first anode plate includes anode upper section and anode lower section；First cathode plate includes on cathode Section and cathode lower section, the anode lower section and cathode lower section lower end are respectively provided with the angle to deflection among the conveyer belt, should Angle is no more than 30 °；The blade is corresponding with fragment position under the anode, and constitutes and be open with plate face on the inside of the anode lower section Acute angle upward.

Preferably, the dehydration device has the second cathode plate being arranged in below the conveyer belt and the second cathode plate Plate face is opposite and the second plate plate that is arranged in above the conveyer belt, its pushing of driving is provided on the second plate plate Actuator.

Preferably, the bottom of the Water tank is provided with filter screen, and the first catch basin is provided with below the filter screen, The bottom of first catch basin is equipped with the first outlet pipe.

Preferably, cylinder is connected on the knife ridge of second scraper plate.

Preferably, the tilting section and horizontal segment are respectively arranged below with the second catch basin, at second catch basin bottom Portion is respectively equipped with the second outlet pipe.

The utility model have it is following the utility model has the advantages that

1. the utility model is according to the tractive force of sludge self gravity, the electro-osmotic effects that electrode plate generates and conveyer belt Collective effect to replace traditional mechanical presses, and electrode plate is designed to that aperture efficiency outlet is big, made in sludge dehydration process In with water loss, sludge volume can reduce and (can generally reduce 2/3 or so), and the width between electrode plate is also descending, have Effect ensure that sludge and electrode plate have good contact, keep sludge dewatering more thorough.

2. the utility model makes " Free water " in sludge using tilting section and two step electroosmotic dewatering technology of dehydration device " in conjunction with water " (cellular water) is separated from sludge simultaneously, realizes high efficiency dehydration.And since electro-osmosis can make dirt Be most difficult to be separated in mud is completely separated " in conjunction with water ", so that dewatered sludge mass dryness fraction be made to greatly improve, and is dehydrated later There are also certain waste heats for sludge itself, can more take away portion of water, dirt of the final sludge mass dryness fraction than other sludge dewatering modes Mud mass dryness fraction at least promotes 30%.Especially for the high sludge of biochemical sludge, the content of organic matter, dehydrating effect is more significant, sludge Mass dryness fraction is up to 50% or more.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model tilting section top view；

In figure: feed hopper 1, blender 2, Water tank 3, filter screen 4, the first catch basin 5, the first outlet pipe 6, conveyer belt 7, Tilting section 8, horizontal segment 9, electrode plate 10, first anode plate 11, anode upper section 111, anode lower section 112, the first cathode plate 12, yin Pole upper section 121, cathode lower section 122, the first scraper plate 13, the second scraper plate 14, connecting rod 15, blade 16, fixed link 17, the second cathode Plate 18, second plate plate 19, actuator 20, cylinder 21, the second catch basin 22, the second outlet pipe 23, DC power supply 24.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

With reference to Fig. 1-Fig. 2, the utility model discloses a kind of deep dehydration systems of residual active sludge, including charging dress It sets, conveying device and dehydration device；

Wherein, feeding device includes feed hopper 1, the blender being arranged in feed hopper 12 and is inclined at feed hopper 1 The Water tank 3 of lower section, blender 2 include agitating shaft and the blade being arranged on agitating shaft, and blade is several, and agitating shaft is at least It is one, preferably two, is disposed in parallel in feed hopper 1, one end of agitating shaft is connected to motor, the rotation of motor driven agitating shaft Turn further to stir sludge, make sludge temperature and the even concentration in feed hopper 1, effectively prevents sludge layering Or scum layer is formed, basicity in hopper is buffered, to improve the speed of sludge disintegration.

In order to carry out preliminary dehydration to sludge, the bottom of Water tank 3 is provided with filter screen 4, makes the moisture in sludge It filters out, is equipped with the first catch basin 5 in the lower section of filter screen 4, and by the way that the first outlet pipe 6 below the first catch basin 5 is arranged in Discharge, filtered sludge slide from Water tank 3 to conveying device according to self gravity.

Conveying device includes conveyer belt 7, and conveyer belt 7 includes tilting section 8 and horizontal segment 9, and tilting section 8 and horizontal segment 9 pass through The connection of concave arc-shaped section rack, is densely covered with permeable pore on conveyer belt 7, and the moisture of removing can be made to flow out by pore, avoid dirt Mud and moisture mix again；In order to be dehydrated to sludge, electrode plate 10, electrode plate 10 are equipped with along conveyer belt 7 on tilting section 8 First anode plate 11 and the first cathode plate 12 including being arranged in 7 two sides of conveyer belt, first anode plate 11 are connecting power supply just Pole, the first cathode plate 12 connects power cathode, and according to the principle of electroosmotic dewatering, sludge is negatively charged and moisture band in sludge Positive charge, under the action of electric field force, electronegative sludge are mobile to first anode plate 11, and positively charged moisture is negative to first Pole plate 12 is mobile, electro-osmosis phenomenon is formed, to realize the mud-water separation in sludge.In order to make, sludge is more smooth, muddy water point More preferable from effect, the middle and upper part of tilting section 8 is equipped with the first scraper plate 13, lower end is provided with the second scraper plate 14, the first scraper plate 13 is The fixed fixation scraper plate in position, the edge of a knife enable conveyer belt 7 when being conveyed sludge by sludge table apart from conveyer belt 4-15cm Face strikes off, and avoids the different influence dehydrating effect of sludge thickness；Second scraper plate 14 be the edge of a knife can far from or close to conveyer belt 7 can Expansion scraper blade, the cylinder 21 on the knife ridge by being fixed on the second scraper plate 14 realize that sludge is cut in the up and down motion of the second scraper plate 14 At clod, facilitates and carry out next process.

In order to make sludge convenient for molding and keep sludge dewatering more thorough, first anode plate 11 includes anode upper section 111 and sun Pole lower section 112, the first cathode plate 12 includes cathode upper section 121 and cathode lower section 122, under anode lower section 112 and cathode lower section 122 End is respectively provided with the angle to the intermediate deflection of conveyer belt 7, which is no more than 30 °.During sludge carries out electro-osmosis, by In the reduction of sludge water content, more dry sludge can be adhered on the medial surface of anode lower section 112, influence leading for first anode plate 11 Electrically, the mud-water separation effect of subsequent sludge is then influenced, therefore, a hinged connecting rod 15, connecting rod on the second scraper plate 14 15 other end is fixedly connected with blade 16, and the middle position of connecting rod 15 is hinged with fixed link 17, and fixed link 17 is fixedly connected On the frame body of conveying device, the position of blade 16 is corresponding with the medial surface of first anode plate 11, and specifically corresponds under anode At section 112, and opening up acute angle is constituted with 112 inside plate face of anode lower section.When cylinder 21 drives the second scraper plate 14 When up and down motion, connecting rod 15 is driven to do the lower upper movement opposite with 14 direction of motion of the second scraper plate around fixed link 17, thus The blade 16 being connected in connecting rod 15 is driven to do lower upper movement, thus the sludge that will be adhered on the medial surface of anode lower section 112 It scrapes.

In order to which the clod cut to the second scraper plate 14 carries out final step dehydration, it is disposed on the horizontal segment 9 of conveyer belt 7 Dehydration device, dehydration device have be arranged in the second cathode plate 18 below conveyer belt 7, it is opposite with 18 plate face of the second cathode plate simultaneously The second plate plate 19 of 7 top of conveyer belt is set, and the second cathode plate 18 connects the cathode of DC power supply 24, second plate plate 19 The anode for connecting DC power supply 24, is provided with the actuator 20 of its pushing of driving on second plate plate 19, and actuator 20 can be Cylinder or hydraulic cylinder, when clod moves to the underface of second plate plate 19, the starting of actuator 20 drives second plate plate 19 It pushes, clod is compressed, compaction pressure 0.1-0.3kg/cm², so that DC power supply 24 is powered, in the effect of electric field force Under, effectively partial moisture remaining on the vertical direction of position among clod is separated, dries sludge adequately. It is more thorough in order to be dehydrated to clod, the time of sludge dewatering can be set according to the water content of sludge and the property of sludge, led to The electric time is longer, and moisture content is lower, and electric field can be 2-10V/mm, is powered after terminating to complete dehydration, right end of the clod from conveyer belt 7 It falls.The transmission process of conveyer belt 7 is Separation control, and interval residence time is consistent with the time that dehydration device is powered, i.e., When dehydration device operation, conveyer belt 7 stops conveying, the second also stop motion of scraper plate 14, after dehydration device end of run, conveying Band 7 restores conveying, and the second scraper plate 14 starts stripping and slicing.

In order to avoid isolated moisture contamination working environment and corrosion equipment, in the lower section of tilting section 8 and horizontal segment 9 point Not She You the second catch basin 22, flow to isolated moisture in the second catch basin 22, and by be arranged at 22 bottom of the second catch basin Second outlet pipe 23 in portion is discharged.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.In the absence of more restrictions.By sentence " element limited including one ..., it is not excluded that There is also other identical elements in the process, method, article or apparatus that includes the element ".

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (7)

1. a kind of deep dehydration system of residual active sludge, including feeding device, conveying device and dehydration device, feature exist In:

The feeding device includes feed hopper (1), setting in the blender (2) in feed hopper (1) and is arranged under feed hopper (1) The Water tank (3) of side；

The conveying device includes conveyer belt (7), and the conveyer belt (7) includes tilting section (8) and horizontal segment (9), the conveying Permeable pore is densely covered on band (7)；The tilting section (8) is equipped with electrode plate (10) along the conveyer belt (7), the electrode plate It (10) include the first anode plate (11) and the first cathode plate (12) for being arranged in the conveyer belt (7) two sides；The inclination The middle and upper part of section (8) is equipped with the first scraper plate (13), lower end setting the second scraper plate (14), and first scraper plate (13) is fixed for position Fixation scraper plate, second scraper plate (14) be the edge of a knife can far from or close to the conveyer belt (7) scalable scraper plate；

The dehydration device is arranged on the horizontal segment (9) of the conveyer belt (7).

2. a kind of deep dehydration system of residual active sludge according to claim 1, it is characterised in that: described second scrapes It is hinged on plate (14) connecting rod (15), the other end of the connecting rod (15) is fixedly connected with blade (16), the connecting rod (15) middle position is hinged with fixed link (17), and the fixed link (17) is fixedly connected on the frame body of the conveying device； Blade (16) position is corresponding with first anode plate (11) the interior plate face.

3. a kind of deep dehydration system of residual active sludge according to claim 2, it is characterised in that: first sun Pole plate (11) includes anode upper section (111) and anode lower section (112)；First cathode plate (12) includes cathode upper section (121) With cathode lower section (122), the anode lower section (112) and cathode lower section (122) lower end are respectively provided in the conveyer belt (7) Between deflection angle, the angle be no more than 30 °；The blade (16) is corresponding with anode lower section (112) position, and with it is described Plate face constitutes opening up acute angle on the inside of anode lower section (112).

4. a kind of deep dehydration system of residual active sludge according to claim 1, it is characterised in that: the dehydration dress It sets with the second cathode plate (18) below the conveyer belt (7), opposite with the second cathode plate (18) plate face and be arranged is arranged Second plate plate (19) above the conveyer belt (7) is provided on the second plate plate (19) and drives its pushing Actuator (20).

5. a kind of deep dehydration system of residual active sludge according to claim 1, it is characterised in that: the Water tank (3) bottom is provided with filter screen (4), is provided with the first catch basin (5) below the filter screen (4), and described first catchments The bottom of slot (5) is equipped with the first outlet pipe (6).

6. a kind of deep dehydration system of residual active sludge according to claim 1, it is characterised in that: described second scrapes Cylinder (21) are connected on the knife ridge of plate (14).

7. a kind of deep dehydration system of residual active sludge according to claim 1, it is characterised in that: the tilting section (8) and horizontal segment (9) is respectively arranged below with the second catch basin (22), in the second catch basin (22) bottom is respectively equipped with Two outlet pipes (23).