CN107804928A

CN107804928A - Sewage-treatment plant

Info

Publication number: CN107804928A
Application number: CN201711046845.4A
Authority: CN
Inventors: 卢梅雅
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-10-31
Filing date: 2017-10-31
Publication date: 2018-03-16

Abstract

The invention provides a kind of sewage-treatment plant, belong to technical field of sewage.It includes pressurizer mechanism, described connection flotation tank mechanism of pressurizer mechanism, flotation tank mechanism connects surge tank, surge tank connects flocculation tank by delivery pump, the flocculant that pending sewage can be allowed to flow into a release pipe is provided with described flocculation tank, described flocculant release pipe is provided with some flocculant release apertures, the both ends of flocculant release pipe and the both ends of flocculation tank are tightly connected, described flocculant release bottom of the tube is connected with settling tank, connection storage tank at the top of described settling tank, flocculation tank is interior to be filled with flocculant.The present invention can form automatic plus flocculant effect to sewage, and treatment effeciency is high, time saving and energy saving.

Description

Sewage-treatment plant

Technical field

The invention belongs to technical field of sewage, is related to a kind of sewage-treatment plant.

Background technology

Generally there is particulate matter in sewage, existing purification method is typically settled process, i.e., is precipitated using sedimentation basin, Sedimentation basin be using precipitation go water removal in suspension a kind of structures, the equipment to purify water.Utilize sinking naturally for water Form sediment or the effect of coagulating sedimentation removes the suspension in water.Sedimentation basin is divided into horizontal sedimentation basin and vertical precipitation by water (flow) direction Pond.Sedimentation effect is decided by the residence time of the flow velocity and water of sedimentation basin reclaimed water in pond.In order to improve sedimentation effect, reduce and use Ground area is more using the incorgruous sedimentation tank of honeycomb inclined-tube, accelerating purifying pool, plusator etc. at present.Sedimentation basin is at waste water It is widely used in reason.

The floor space of sedimentation basin is larger, and needs to be stood, sedimentation time length.In order to accelerate sinking speed, people Inorganic or organic flocculant is often added in sewage, carrys out Accelerated subsidence, is typically to be added after a water is piled, is stirred for Even, this plus flocculant method will expend substantial amounts of manpower.

Such as Chinese patent literature discloses a kind of sedimentation basin [application number：201510450441.6], it includes sedimentation basin Body, bottom face is provided with activated carbon adsorption layer in the sedimentation basin body, will be precipitated by dividing plate in the sedimentation basin body Pond is divided into settling zone and clean water area, and the middle and upper part of the dividing plate is provided with gap, and the both sides of the sedimentation basin body are respectively equipped with Water inlet pipe and outlet pipe, the water inlet pipe are located in settling zone, and the outlet pipe is located in clean water area, are set below the water inlet pipe There is the deflector being obliquely installed, the surface of the deflector is provided with ultraviolet sterilizer.Should be good with natural sedimentation effect, energy Bactericidal action is enough played, the program similarly needs to be manually added flocculant, wasted time and energy.

The content of the invention

A kind of regarding the issue above, the present invention provides sewage-treatment plant.

To reach above-mentioned purpose, present invention employs following technical proposal：

A kind of sewage-treatment plant, including pressurizer mechanism, connection flotation tank mechanism of described pressurizer mechanism, flotation tank Mechanism connects surge tank, and surge tank connects flocculation tank by delivery pump, can allowed provided with one in described flocculation tank pending The flocculant release pipe that sewage flows into, described flocculant release pipe are provided with some flocculant release apertures, flocculant release pipe Both ends and flocculation tank both ends be tightly connected, described flocculant release bottom of the tube be connected with settling tank, described settling tank Top connects storage tank, and flocculant is filled with flocculation tank.

In above-mentioned sewage-treatment plant, described flocculation tank upper end is provided with flocculant dog-house, described flocculant Release aperture is gathered on the outer wall of flocculant release pipe, and the both ends of flocculant release pipe are extended outside flocculation tank, flocculant release The part that pipe extends outside flocculation tank does not have flocculant release aperture,

Described flocculant release bottom of the tube is connected with settling tank, and described precipitation pot bottom has sewage draining exit, described The screen pack in inverted round stage taper is provided with settling tank, the top of described screen pack is described with being tightly connected at the top of settling tank The used filter sealing plate sealing of filtering sieve bottom, a purification discharge nozzle, purification discharging are also inserted with inside described screen pack Pipe extends at the top of settling tank and is fixedly connected with settling tank, and purification discharge nozzle bottom is opening-like.

In above-mentioned sewage-treatment plant, one piece of screen pack connecting plate is connected with the top of described screen pack, it is described Screen pack connecting plate is in annular, and screen pack connecting plate is tightly connected with settling tank top inner wall, described precipitation pot bottom by Tapered small formation settling zone, sewage draining exit are located at the center of settling zone, valve are provided with sewage draining exit.

In above-mentioned sewage-treatment plant, described settling tank is provided with sewage feed pipe, described precipitation top tank structure It is fixed with the sewage discharging ring of a connection sewage feed pipe, described sewage discharging ring connection settling tank, and sewage discharging ring Outside screen pack, described sewage discharging ring in a ring, some sewage dischargings is uniformly provided with sewage discharging ring upper surface Mouthful.

In above-mentioned sewage-treatment plant, be additionally provided with described settling tank one can be hit with screen pack beat Mechanism is beaten, described beating organization is located inside screen pack, and beating organization is fixed in the top inner wall of settling tank, described Beating organization includes some components of beating being fixed in settling tank top inner wall, it is some beat component length it is different from And the position of the different height of screen pack inwall can be beaten, some components of beating are along the circumferentially-spaced equal of purification discharge nozzle Even setting, the described lifting rope beaten component and include being fixedly connected with settling tank top inner wall, and be suspended on lifting rope Beat ball.

In above-mentioned sewage-treatment plant, described pressurizer mechanism includes pressurized canister, and pressurization is arranged with outside pressurized canister Head tank, described pressurized canister are fixedly connected with forced feed tank, and the forced feed of forced feed tank is communicated with pressurized canister Pipe, pressurized canister is interior to be provided with air inlet pipe, several exhaust disks is connected with air inlet pipe, described exhaust disk inside pressurized canister with connecting Logical, described air inlet pipe connection compressed air generator, described flotation tank mechanism includes flotation tank, and is centered around flotation tank The air flotation slot of top edge, air supporting trench bottom are connected with discharge nozzle.

In above-mentioned sewage-treatment plant, axially spaced-apart of some exhaust disks along air inlet pipe is uniformly set, and is vented It is densely covered with venthole on disk, compressed air generator is compressed air cylinder or air compressor, the bottom ports of described pressurized canister Footpath is gradually reduced to form the first pressurized precipitation area, the first pressurized precipitation area bottom be connected with the first pressurised exhaust pipe and this first plus Pressure delivery pipe extends outside forced feed tank.

In above-mentioned sewage-treatment plant, described forced feed pot bottom bore, which is gradually reduced, to be formed the second pressurization and sinks Shallow lake area, the second pressurized precipitation area bottom is connected with the second pressurised exhaust pipe and the second pressurised exhaust pipe extends forced feed tank It is outside.

In above-mentioned sewage-treatment plant, be fixed with the inwall of described pressurized canister one be inclined to set first Spiral board, the first spiral board are located at the outer wall of the spiral board of outlet face first of the top of forced feed pipe and forced feed pipe, The inwall of described forced feed tank is fixed with second spiral board being inclined to set, and pressurization is additionally provided with forced feed tank Charging aperture, the second spiral board is located above forced feed mouth and forced feed mouth the second spiral board of face, the first described eddy flow Plate and the second spiral board are in inverted round stage taper.

In above-mentioned sewage-treatment plant, described flotation tank includes release pond and run-off, and release pond is connected with pipeline Connect at the top of pressurized canister, the bottom of release pond connects with run-off, and the height of described run-off is less than air flotation slot, described release Bottom of pond portion is provided with air supporting plate, is densely covered with aperture on described air supporting plate, and the junction of release pond and pressurized canister is located on air supporting plate Side, air supporting link slot, described air supporting link slot connection release pond and run-off, described release pond are provided with below air supporting plate Low spot drain valve is respectively equipped with run-off, overflow valve, described overflow valve connection oil slick pond, air flotation slot are provided with air flotation slot Bottom is provided with control valve.

Compared with prior art, the advantage of the invention is that：

1st, automatic plus flocculant effect can be formed to sewage, treatment effeciency is high.

2nd, the structure of screen pack can block large granular impurity, and and can forms eddy flow in settling tank, accelerates particulate matter to sink Drop, it is time saving and energy saving.

3rd, sewage discharging ring can prevent screen pack from locally blocking, and and can accelerates current to form eddy flow, further speeds up particle Thing settles.

4th, beating organization can hit to screen pack at work, prevent screen pack from blocking.

5th, in pressurized with compressed air mixed process, separation of solid and liquid can be realized to sewage, make solid particle from pressurized canister Discharged with forced feed pot bottom, compressed air is well mixed with sewage by being vented disk, is created well for next step oil extraction Precondition.

6th, in release pond, because gas mixing is uniform, therefore it is also uniform to discharge process, enables oil slick fully and sewage Separation, realizes water-oil separating, reduces the COD value in sewage, then after the top overflow by release pond and run-off, oil slick is received Collection, is sufficiently separated with sewage.

7th, the present invention can realize separation of solid and liquid, and and can realizes water-oil separating, can reduce the COD value in sewage, can also carry The clarity of high sewage.

Further advantage, target and the feature of the present invention embodies part by following explanation, and part will also be by this The research and practice of invention and be understood by the person skilled in the art.

Brief description of the drawings

Fig. 1 is the structural representation of settlement of sewage mechanism.

Fig. 2 is the structural representation of screen pack.

Fig. 3 is the structural representation of sewage discharging ring.

Fig. 4 is another structural representation of settlement of sewage mechanism.

Fig. 5 is the stereogram of flocculation tank.

Fig. 6 is the planar structure schematic diagram of flocculation tank.

Fig. 7 is the structural representation of flocculant release pipe.

Fig. 8 is flocculation tank with precipitating tank connected structural representation.

Fig. 9 is the schematic diagram that pressurizer mechanism is connected with flotation tank mechanism.

Figure 10 is the internal structure schematic diagram of air inlet pipe connection exhaust disk.

Figure 11 is the schematic perspective view of air inlet pipe connection exhaust disk.

Figure 12 is the structural representation of flotation tank.

Figure 13 is the structural representation of the present invention.

In figure, settling tank 101, sewage draining exit 102, screen pack 103, filtering sealing plate 104, purification discharge nozzle 105, screen pack Connecting plate 106, settling zone 107, sewage feed pipe 108, sewage discharging ring 109, sewage discharging opening 110, beating organization 111, beat Beat component 112, lifting rope 113, beat ball 114, flocculation tank 201, flocculant release pipe 202, flocculant release aperture 203, flocculant Dog-house 204, flotation tank mechanism 301, pressurizer mechanism 302, pressurized canister 303, forced feed tank 304, forced feed pipe 305, Air inlet pipe 306, exhaust disk 307, compressed air generator 308, flotation tank 309, air flotation slot 310, venthole 311, first pressurize Settling zone 312, the first pressurised exhaust pipe 313, the second pressurized precipitation area 314, the second pressurised exhaust pipe 315, the first spiral board 316th, the second spiral board 317, forced feed mouth 318, release pond 319, run-off 320, air supporting plate 321, air supporting link slot 322, Low spot drain valve 323, overflow valve 324, oil slick pond 325, control valve 326, surge tank 401, delivery pump 402, storage tank 403.

Embodiment

Embodiment 1

As shown at 13, a kind of sewage-treatment plant, flotation tank mechanism 301, pressurizer mechanism 302, settling tank 101, flocculation Tank 201, surge tank 401, delivery pump 402 and storage tank 403.

Wherein, pressurizer mechanism 302 connects flotation tank mechanism 301, and flotation tank mechanism 301 connects surge tank 401, surge tank 401 connect flocculation tank 201 by delivery pump 402, and flocculation tank 201 connects settling tank 101, and the described top of settling tank 101 connects Storage tank 403.

With reference to shown in Fig. 5 and Fig. 6, in flocculation tank 201 filled with flocculant, flocculant is PAM solution, described flocculation The flocculant that pending sewage can be allowed to flow into a release pipe 202 is provided with tank 201, described flocculant is discharged on pipe 202 Provided with some flocculant release apertures 203, the both ends and the both ends of flocculation tank 201 of flocculant release pipe 202 are tightly connected.Delivery pump 402 connection flocculant release pipes 202.

The upper end of flocculation tank 201 is provided with flocculant dog-house 204, and with reference to shown in Fig. 7, described flocculant release aperture 203 is close Cloth is on the outer wall of flocculant release pipe 202, and with reference to shown in Fig. 6, flocculation tank 201 is extended at the both ends of flocculant release pipe 202 Outside, the part that flocculant release pipe 202 extends outside flocculation tank 201 does not have flocculant release aperture 203.

The operation principle of flocculation tank 201 is：The upper end that sewage is discharged pipe 202 by flocculant enters, and is flowed out from lower end, in dirt During water flowing, fluid produces suction, and PAM solution is gradually suctioned out from flocculant release aperture 203, mixed with sewage Close, the particulate matter in sewage, which combines, produces macromolecular mass.In flocculant dog-house 204 can according to technique material quantity timing or Person's not timing feeds intake.

With reference to shown in Fig. 8, described flocculant release pipe 202 bottom is connected with settlement of sewage mechanism, specifically, flocculation The bottom connection of agent release pipe 202 is arranged on the sewage feed pipe 108 on settling tank 101.

As shown in figure 1, settlement of sewage mechanism includes settling tank 101, the described bottom of settling tank 101 has sewage draining exit 102, Be provided with the screen pack 103 in inverted round stage taper in described settling tank 101, screen pack 103 be preferably stainless (steel) wire or Plastic wire, the aperture of screen pack 103 can be selected according to process conditions, be typically preferred with 40-100 mesh, described filtering The top of net 103 is tightly connected with the top of settling tank 101, and the described bottom of screen pack 103 filtering sealing plate 104 seals, institute A purification discharge nozzle 105 is also inserted with inside the screen pack 103 stated, purification discharge nozzle 105 extends the top of settling tank 101 simultaneously It is fixedly connected with settling tank 101, purification discharge nozzle 105 bottom is opening-like.

Sewage can enter from the top of settling tank 101, in the present embodiment, be provided with sewage feed pipe 108, sewage charging Pipe 108 can be arranged on any position of settling tank 101, after sewage is entered in settling tank 101 from sewage feed pipe 108, The impurity of bulky grain is stopped by screen pack 103 first, due to the design of the inverted round stage taper of screen pack 103, is attached to screen pack Particulate matter on 103 is easy to depart from from screen pack 103, is deposited to the bottom of settling tank 101.

Because filtering sieve bottom and top are presented sealing state, therefore sewage necessarily flows through screen pack, then from purifying Expects pipe 105 flows out, and purification discharge nozzle 105 bottom is positioned at the top of filtering sealing plate 104, and therefore, the current in screen pack 103 will not Disturbance is produced to the sediment of the bottom of settling tank 101.Sediment is discharged from sewage draining exit 102.Purify discharge nozzle 105 and connect storage tank 403。

With reference to shown in Fig. 2, the top of screen pack 103 is connected with one piece of screen pack connecting plate 106, described screen pack connecting plate 106 be in annular, and screen pack connecting plate 106 is tightly connected with the top inner wall of settling tank 101, can also be in screen pack connecting plate Sealing ring is set between 106 and the top inner wall of settling tank 101, is connected with, or screen pack connecting plate 106 and settling tank it is straight Connect welding.

As described above, settling tank 101 is provided with sewage feed pipe 108, it is preferable that the described inwall of settling tank 101 is fixed There are the sewage discharging ring 109 of a connection sewage feed pipe 108, described sewage discharging ring 109 connection settling tank 101, and dirt Water discharging ring 109 is located at outside screen pack 103, namely sewage discharging ring 109 is between settling tank 101 and screen pack 103.

Sewage discharging ring 109 makes sewage prevent screen pack to be locally blocked even into inside settling tank 101.It is it is preferred that square Case, with reference to shown in Fig. 3, sewage discharging ring 109 in a ring, some sewage dischargings is uniformly provided with the upper surface of sewage discharging ring 109 Mouth 110.

The present embodiment, why by sewage discharging opening 110 upward, be to prevent sewage from directly impacting the bottom of settling tank 101, Sediment is stirred.On the other hand, sewage discharging opening 110 designs upward, can change the direction that sewage is entered in settling tank, dirty Water first up flows, and changes direction after running into screen pack 103, because the bore of the bottom of screen pack 103 tapers into, current and mistake The contact surface of filter screen also tapers into, and becomes eddy flow, so as to accelerate the sedimentation of particulate matter, plays the work for accelerating particulate matter sedimentation With.

After long-term use, screen pack can be blocked by particulate matter, cause water outlet slowly to be rushed, it is necessary to dismantle screen pack Wash.Unloading process will open settling tank, be reinstalled again after cleaning, and process is cumbersome, and influence sewage treating efficiency.

In order to solve the above problems, the present embodiment is also provided with a beating organization 111, for being carried out to screen pack 103 Beat, screen pack is cleaned in the course of the work, namely incumbent firms.

Specifically, beating organization 111 is located in settling tank 101, can be hit with screen pack 103, in knockout process In, the dirt on screen pack 103 is eliminated.

In particular, beating organization 111 is located inside screen pack 103, and beating organization 111 is fixed on settling tank 101 Top inner wall on.

Beating organization 111 includes some be fixed in the top inner wall of settling tank 101 and beats component 112, some to beat group Beat the position of the different different height so as to the inwall of screen pack 103 of length of part 112.It is some to beat component 112 are uniformly set along the circumferentially-spaced of purification discharge nozzle 105.

The lifting rope 113 that component 112 includes being fixedly connected with the top inner wall of settling tank 101 is beaten, and is suspended on lifting rope 113 On beat ball 114.It can be the baton round that iron ball, cement ball or density are more than water to beat ball 114, beat the outer wall of ball 114 Flexible flexure strip is enclosed with, for protecting screen pack 103.

The length of some lifting ropes 113 differs, therefore it is also different to beat height of the ball 114 in settling tank, can beat The position of the different height of screen pack 103.

Beating the operation principle of component 112 is：

After current are flowed into 103 inside of screen pack, meeting team beats ball 114 and produces disturbance, beats ball 114 in lifting rope 113 Traction under generation rock, when rocking to certain amplitude, you can the inwall of contact filtration net 103 beats effect so as to produce.

The preferred scheme of settling tank 101, as shown in figure 4, the bottom of settling tank 101 is gradually reduced to form settling zone 107, blowdown Mouth 102 is located at the center of settling zone 107, and valve is provided with sewage draining exit 102.After the particulate matter in sewage precipitates along screen pack, Focus in settling zone 107, opening valve can discharge from sewage draining exit 102.Because sewage draining exit 102 is located in settling zone 107 The heart, therefore extreme lower position is in, can all sediments of emptying.

Settling zone 107 flows without current substantially below filtering sealing plate 104, sediment will not be produced and disturbed, It is easy to accelerate to precipitate, is then discharged out.

As shown in figure 9, described pressurizer mechanism 302 includes pressurized canister 303, forced feed is arranged with outside pressurized canister 303 Tank 304, described pressurized canister 303 are fixedly connected with forced feed tank 304, and forced feed tank 304 is communicated with pressurized canister 303 Forced feed pipe 305, is provided with air inlet pipe 306 in pressurized canister 303, several is connected with air inlet pipe 306 and is vented disk 307, Described exhaust disk 307 connects with the inside of pressurized canister 303, described air inlet pipe 306 connection compressed air generator 308,

Described flotation tank mechanism 301 includes flotation tank 309, and is centered around the air flotation slot of the top edge of flotation tank 309 310, the bottom of air flotation slot 310 is connected with discharge nozzle.

Sewage, which is introduced into, is pressed into batch can 304, and pressurization can be played using pump, and the pressure of sewage is normally controlled in 0.3-0.8MPa. Afterwards, sewage is entered in pressurized canister 303 by feed pipe 305, and air enters from air inlet pipe 306, and dirt is drained into by exhaust disk 307 In water, mixed with sewage.

With reference to shown in Figure 10 and Figure 11, axially spaced-apart of some exhaust disks 307 along air inlet pipe 306 is uniformly set, and is arranged Venthole 311 is densely covered with gas disk 307.Air inlet pipe 306 connects with exhaust disk 307, from venthole after air entrance exhaust disk 307 311 overflow, and uniformly enter in the sewage inside pressurized canister 303.Preferred scheme, it is vented the upper and lower surface and side of disk 307 Venthole 311 is offered on wall, gas is entered in sewage from all directions, dispersed, is compressed under pressure In sewage.Compressed air generator 308 is compressed air cylinder or air compressor, and compressed air enters from exhaust disk 307, compressed The pressure of air is normally controlled in 0.3-0.6MPa.

The bottom bore of described pressurized canister 303 is gradually reduced to form the first pressurized precipitation area 312, described forced feed The bottom bore of tank 304, which is gradually reduced, to be formed the bottom of 314 first pressurized precipitation area of the second pressurized precipitation area 312 and is connected with the first pressurization Delivery pipe 313 and the first pressurised exhaust pipe 313 extends outside forced feed tank 304, the bottom of the second pressurized precipitation area 314 connect It is connected to the second pressurised exhaust pipe 315 and the second pressurised exhaust pipe 315 extends outside forced feed tank 304.

Particulate matter is had in sewage, under pressure floatation air effect, particulate matter can accelerate to sink, heavy in pressurized canister Starch is gradually deposited in the first pressurized precipitation area 312, and the first pressurised exhaust pipe 313 is opened in timing can be outside drain tank, forced feed Sediment in tank 304 is precipitated in charging, is gradually deposited to the second pressurized precipitation area 314, and the second pressurization is opened in timing Delivery pipe 315 can be outside drain tank.

It will be appreciated by those skilled in the art that the first pressurised exhaust pipe 313 and the second pressurised exhaust pipe 315 are respectively connected with valve Door.

First spiral board 316 being inclined to set, the first spiral board are fixed with the inwall of described pressurized canister 303 316 positioned at the top of forced feed pipe 305 and the outer wall of the first spiral board of outlet face 316 of forced feed pipe 305.

The inwall of described forced feed tank 304 is fixed with second spiral board 317 being inclined to set, forced feed Forced feed mouth 318 is additionally provided with tank 304, the second spiral board 317 is located at the top of forced feed mouth 318 and forced feed mouth 318 The second spiral board of face 317.

The first described spiral board 316 and the second spiral board 317 are in inverted round stage taper.The first spiral board of flow impact 316 Flowed downward with the second spiral board 317, produce vortex, the sedimentation of accelerating solid particulate matter.Improve the cleaning efficiency of water body.

Preferred scheme, the first spiral board 316 and the second spiral board 317 are in the helical form being rotated down, water impact first Vortex is formed after the spiral board 317 of spiral board 316 and second, the sedimentation of accelerating solid particulate matter, cleans water body.

Floating pond 309 includes release pond 319 and run-off 320, and run-off 320 can have multiple, and release pond 319 is connected with pipeline The top of pressurized canister 303 is connect, the bottom of release pond 319 connects with run-off 320, and the height of described run-off 320 is less than air supporting Groove 310.

The sewage of release pond 319 is flowed into run-off 320 by bottom, as run-off 320 has multiple, can also use bottom The method of connection is sequentially communicated, when run-off has it is multiple when, multistage overflow can be formed, be easy to the collection of oil slick.

As shown in figure 12, release pond 319 is used for water-oil separating, the oil slick after separation from the first overflow launder 327 first flow into Run-off 320, then from there is the second overflow launder 328 to be flowed into air flotation slot 310, oil slick is flowed into oil slick pond 325 from overflow valve 324 and entered Row is collected, and is done and is handled in next step.

The sewage that there is compressed air inside is entered in release pond 319 after being come out from pressurized canister, and gas discharges at ambient pressure Become minute bubbles one by one, the oil slick in sewage is taken on the water surface, on the one hand slick can be flowed into run-off In 320, on the other hand it can also be fed directly in air flotation slot 310, oil slick collects recovery, gas-liquid separation device 310 in air flotation slot 310 Bottom connects sewage with pipeline, and oil slick is taken away from gas-liquid separation device 310.

The described bottom of release pond 319 is provided with air supporting plate 321, and aperture, release pond are densely covered with described air supporting plate 321 319 be located above air supporting plate 321 with the junction of pressurized canister 303, that is, the junction of pipeline and flotation tank is located on air supporting plate Side, gas degassing kickboard top are released, and air supporting link slot 322 are provided with below air supporting plate 321, air supporting link slot 322 can To be strip or poroid, for sewage to be connected into flotation tank, the described air supporting link slot 322 connection He of release pond 319 Run-off 320.

The effect of air supporting plate is to reduce the flow velocity of current, uniformly settles solid particle, and make gas on air supporting plate Side is fully discharged, and oil slick is sufficiently separated.

Described release pond 319 and run-off 320 is respectively equipped with low spot drain valve 323, and low spot drain valve 323 is used to arrange Dirt, is provided with overflow valve 324 on air flotation slot 310, and overflow valve 324 is used to discharge oil slick, described overflow valve 324 connection oil slick pond 325, the bottom of air flotation slot 310 is provided with control valve 326, and control valve 326 connects surge tank 401 with pipeline, and control valve 326 is used to discharge The sewage separated with oil slick, the amplitude of valve regulated belong to common knowledge, and here is omitted.

It will be appreciated by those skilled in the art that what is flowed out at the pipeline that control valve 326 connects is sewage rather than oil slick, float Oil is to be flowed into oil slick pond 325 to be collected by overflow valve, is separated in next step to do.

The operation principle of the present embodiment is：

Sewage water pump is pumped into from forced feed mouth 318, in forced feed tank 304 after rotational flow settlement, by pressurizeing Feed pipe 305 is entered in pressurized canister 303, and compressed air caused by compressed air generator 308 is by the row of entering of air inlet pipe 306 Gas disk 307, pressurized canister uniformly is entered after release, is sufficiently mixed with sewage, afterwards by entering release pond at the top of pressurized canister 319, gas becomes intensive minute bubbles release in release pond, drives oil slick to float at the top of sewage, sewage is flowed into run-off After 320, the oil slick at top is flowed into air flotation slot 310, is flowed into oil slick pond 325 and is collected through overflow valve 324.

The sewage of bottom in run-off can be discharged by low spot drain valve 323, and the sewage in air flotation slot 310 passes through Control valve 326 is discharged, and realizes water-oil separating, while reduces the COD value in sewage.

In addition, the particulate matter in sewage, by pressurized canister 303, forced feed tank 304, release pond 319 and run-off 320 After Multistage settling, separation of solid and liquid is fully realized, so that the solid waste in sewage is efficiently separated.

Sewage in air flotation slot 310 enters after surge tank 401 and is driven into flocculant release pipe 202 with delivery pump 402, will Flocculant in flocculation tank 201 is suctioned out automatically, enters in settling tank 101, and storage tank is entered after forming sedimentation in settling tank 403, complete sewage disposal.

Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.

Although settling tank 101, sewage draining exit 102, screen pack 103, filtering sealing plate 104, purification have more been used herein Discharge nozzle 105, screen pack connecting plate 106, settling zone 107, sewage feed pipe 108, sewage discharging ring 109, sewage discharging opening 110th, beating organization 111, beat component 112, lifting rope 113, beat ball 114, flocculation tank 201, flocculant release pipe 202, flocculation Agent release aperture 203, flocculant dog-house 204, flotation tank mechanism 301, pressurizer mechanism 302, pressurized canister 303, forced feed tank 304th, forced feed pipe 305, air inlet pipe 306, exhaust disk 307, compressed air generator 308, flotation tank 309, air flotation slot 310, Venthole 311, the first pressurized precipitation area 312, the first pressurised exhaust pipe 313, the second pressurized precipitation area 314, the second pressurised exhaust Pipe 315, the first spiral board 316, the second spiral board 317, forced feed mouth 318, release pond 319, run-off 320, air supporting plate 321st, air supporting link slot 322, low spot drain valve 323, overflow valve 324, oil slick pond 325, control valve 326, surge tank 401, conveying The terms such as pump 402, storage tank 403, but it is not precluded from the possibility using other terms.Using these terms just for the sake of more square Just the essence of the present invention is described and explained, being construed as any additional limitation is disagreed with spirit of the present invention The back of the body.

Claims

1. a kind of sewage-treatment plant, including pressurizer mechanism (302), described pressurizer mechanism (302) connection flotation tank machine Structure (301), flotation tank mechanism (301) connection surge tank (401), surge tank (401) connect flocculation tank by delivery pump (402) (201), it is characterised in that the flocculant that pending sewage can be allowed a to flow into release is provided with described flocculation tank (201) Manage (202), described flocculant release pipe (202) is provided with some flocculant release apertures (203), flocculant release pipe (202) The both ends of both ends and flocculation tank (201) be tightly connected, described flocculant release pipe (202) bottom is connected with settling tank (101), connection storage tank (403) at the top of described settling tank (101), flocculation tank (201) is interior to be filled with flocculant.

2. sewage-treatment plant according to claim 1, it is characterised in that described flocculation tank (201) upper end is provided with wadding Solidifying agent dog-house (204), described flocculant release aperture (203) are gathered on the outer wall for discharging pipe (202) in flocculant, flocculant Flocculation tank (201) is extended outside in the both ends of release pipe (202), and flocculant release pipe (202) extends the portion of flocculation tank (201) outside Divide and do not have flocculant release aperture (203),

Described settling tank (101) bottom has sewage draining exit (102), and it is in inverted round stage taper to be provided with described settling tank (101) Screen pack (103), the top of described screen pack (103) at the top of settling tank (101) with being tightly connected, described screen pack (103) bottom is sealed with filtering sealing plate (104), and a purification discharge nozzle is also inserted with inside described screen pack (103) (105), purify discharge nozzle (105) to extend at the top of settling tank (101) and be fixedly connected with settling tank (101), purify discharge nozzle (105) bottom is opening-like.

3. sewage-treatment plant according to claim 3, it is characterised in that be connected with the top of described screen pack (103) One piece of screen pack connecting plate (106), described screen pack connecting plate (106) are in annular, screen pack connecting plate (106) and precipitation Tank (101) top inner wall is tightly connected, and described settling tank (101) bottom is gradually reduced to form settling zone (107), sewage draining exit (102) it is located at the center of settling zone (107), valve is provided with sewage draining exit (102).

4. sewage-treatment plant according to claim 3, it is characterised in that described settling tank (101) is provided with sewage Feed pipe (108), described settling tank (101) inwall are fixed with the sewage discharging ring of a connection sewage feed pipe (108) (109), described sewage discharging ring (109) connection settling tank (101), and sewage discharging ring (109) is located at screen pack (103) outside Portion, described sewage discharging ring (109) are uniformly provided with some sewage discharging openings in a ring, in sewage discharging ring (109) upper surface (110)。

5. sewage-treatment plant according to claim 3, it is characterised in that be additionally provided with one in described settling tank (101) The individual beating organization (111) that can be hit with screen pack (103), beating organization (111) are located at screen pack (103) inside, and Beating organization (111) is fixed in the top inner wall of settling tank (101), and described beating organization (111) includes some be fixed on Beat component (112) in settling tank (101) top inner wall, it is some beat component (112) length it is different so as to right The position of the different height of screen pack (103) inwall is beaten, and some components (112) of beating are along purification discharge nozzle (105) Circumferentially-spaced uniform setting, the described lifting rope beaten component (112) and include being fixedly connected with settling tank (101) top inner wall (113), and it is suspended on lifting rope (113) and beats ball (114).

6. sewage-treatment plant according to claim 1, it is characterised in that described pressurizer mechanism (302) includes adding Tank (303) is pressed, forced feed tank (304), described pressurized canister (303) and forced feed tank are arranged with outside pressurized canister (303) (304) it is fixedly connected, the forced feed pipe (305) of forced feed tank (304), pressurized canister is communicated with pressurized canister (303) (303) air inlet pipe (306) is provided with, several exhaust disks (307), described exhaust disk are connected with air inlet pipe (306) (307) with being connected inside pressurized canister (303), described air inlet pipe (306) connection compressed air generator (308), described gas Fu Chi mechanisms (301) include flotation tank (309), and are centered around the air flotation slot (310) of flotation tank (309) top edge, air supporting Groove (310) bottom is connected with discharge nozzle.

7. sewage-treatment plant according to claim 1, it is characterised in that some disks (307) that are vented are along air inlet pipe (306) Axially spaced-apart uniformly set, and be vented on disk (307) and be densely covered with venthole (311), compressed air generator (308) is pressure Contracting air tank or air compressor, the bottom bore of described pressurized canister (303) are gradually reduced to form the first pressurized precipitation area (312), first pressurized precipitation area (312) bottom is connected with the first pressurised exhaust pipe (313) and the first pressurised exhaust pipe (313) It is outside to extend forced feed tank (304).

8. sewage-treatment plant according to claim 3, it is characterised in that described forced feed tank (304) bottom ports Footpath is gradually reduced to form the second pressurized precipitation area (314), and second pressurized precipitation area (314) bottom is connected with the second pressurised exhaust pipe (315) and the second pressurised exhaust pipe (315) extends forced feed tank (304) outside.

9. sewage-treatment plant according to claim 1, it is characterised in that solid on the inwall of described pressurized canister (303) Surely there is first spiral board being inclined to set (316), the first spiral board (316) is located at the top of forced feed pipe (305) And the outer wall of the spiral board of outlet face first (316) of forced feed pipe (305), the inwall of described forced feed tank (304) Second spiral board being inclined to set (317) is fixed with, forced feed mouth (318) is additionally provided with forced feed tank (304), Second spiral board (317) is located above forced feed mouth (318) and forced feed mouth (318) the second spiral board of face (317) institute The first spiral board (316) and the second spiral board (317) stated are in inverted round stage taper.

10. sewage-treatment plant according to claim 1, it is characterised in that described flotation tank (309) includes release pond (319) connected with run-off (320), release pond (319) with pipeline at the top of pressurized canister (303), the bottom of release pond (319) is with overflowing Pond (320) connection is flowed, the height of described run-off (320) is less than air flotation slot (310), and described release pond (319) bottom is set There is air supporting plate (321), aperture, the junction of release pond (319) and pressurized canister (303) are densely covered with described air supporting plate (321) Above air supporting plate (321), air supporting link slot (322), described air supporting link slot are provided with below air supporting plate (321) (322) release pond (319) and run-off (320) are connected, described release pond (319) and run-off (320) are respectively equipped with low spot Drain valve (323), overflow valve (324) being provided with air flotation slot (310), described overflow valve (324) connects oil slick pond (325), Air flotation slot (310) bottom is provided with control valve (326).