CN102145933B

CN102145933B - Pulse type foam-absorbing machine

Info

Publication number: CN102145933B
Application number: CN2011100426284A
Authority: CN
Inventors: 杜诚; 汪文生
Original assignee: NANJING BEITE ENVIRONMENTAL PROTECTION GENERAL EQUIPMENT MANUFACTURING Co Ltd
Current assignee: NANJING BEITE ENVIRONMENTAL PROTECTION GENERAL EQUIPMENT MANUFACTURING Co Ltd
Priority date: 2011-02-22
Filing date: 2011-02-22
Publication date: 2012-07-25
Anticipated expiration: 2031-02-22
Also published as: CN102145933A

Abstract

The invention relates to a pulse type foam-absorbing machine, belonging to the technical field of water treatment facilities. The foam-absorbing machine contains a guide cylinder with an upper foam-absorbing opening and a lower water outlet, wherein the periphery of the guide cylinder is fixedly connected with a group of float bowls which are distributed along the circumference; the bottom of the guide cylinder is provided with an impeller which is driven by an electric motor to discharge water downwards; and the upper parts of the float bowls are higher than the horizontal plane. When the foam-absorbing machine moves up and down, knock wave is generated on the water body above and surrounding the machine and the guide cylinder and the float bowls impact floating mud blocks so as to effectively break the mud blocks and break bridging. Therefore, the phenomenon that water is absorbed, but mud is not absorbed, can be eliminated and an ideal foam-absorbing effect can be maintained.

Description

Pulsating is inhaled the foam machine

Technical field

The present invention relates to a kind of suction foam machine, especially a kind of pulsating is inhaled the foam machine, belongs to the water processing establishment technical field.

Background technology

In sewage treatment process, often have some foams that contain mud on the biological tank water surface and float on the surface.If these mud scum foams can not in time be removed, will form the mud scum of mummification after exposing to the weather, cumulative on the water surface, long-pending more thick more, in addition the completely whole pond of the lid water surface, become the fly breeding ground, and discharge foul smell, cause environmental pollution.

In the past, remove these mud scum foams and lean on usually and artificially play waterlogging or the water sprinkling is broken up, its labour intensity is big, work under bad environment.Retrieval is found; Application number is that the Chinese patent of CN97234800.X discloses a kind of defoamer, is used for the aeration tank froth breaking, is made up of motor, shaft coupling, main shaft, frame, bearing block, upper bearing (metal), lower bearing, upper ball cover, lower ball cover, axle sleeve, seal box, seal box gland, seal, baffle plate, impeller, defoaming box, suction foam cover; When the motor drives impeller rotates at a high speed; Form certain negative pressure, the lip-deep foam in aeration tank is inhaled in the defoaming box, eliminates foam.This patented technology adopts mechanical system to eliminate foam, has certain foam effect that disappears.But according to applicant's understanding, one of FAQs that has the existence of suction foam machine now is: because the mud scum foam quality is less, often " bridging " accumulation above suction foam machine suction inlet is not easily inhaled the phenomenon of mud thereby appearance suction foam machine only absorbs water, and causes inhaling the foam deleterious.

Summary of the invention

The objective of the invention is to: be directed against the problem that prior art exists, above suction inlet, pile up the pulsating suction foam machine that guarantees to inhale the foam effect thereby propose a kind of foam of can effectively eliminating.

In order to reach above purpose; Pulsating of the present invention inhale the foam machine comprise inhale the foam mouth the upper water-out mouth under guide shell; Be connected with one group of floating drum that is uniformly distributed along the circumference around the said guide shell; The impeller of driven by motor draining down is equipped with at the tube end of said guide shell, and the top of said floating drum exceeds horizontal plane.

When being full of water in the said guide shell and inhaling the foam mouth when flushing with the water surface, the draining thrust that produces during said impeller operation and the buoyancy sum of said suction foam machine are greater than the weight of said suction foam machine.

Like this, when impeller is stopped transport, because draining thrust disappears, inhale the foam machine and sink, the suction foam mouth of guide shell will be under the water surface, until the buoyancy increase and the balanced of inhaling the foam machine of floating drum; And after impeller operation produces draining thrust, inhale the reaction force that the foam machine receives it will be risen gradually, flush with the water surface until the suction foam mouth of guide shell; When rising to, guide shell inhales the foam mouth slightly behind the water surface; Can not be got in the tube because peripheral water intercepts, the foam mud scum of its top will be by whole suctions, and the water yield in the tube constantly reduces afterwards; Decline along with water level in the tube; The volume that guide shell is drained strengthens, and buoyancy increases, and inhales foam machine integral body and will continue to rise; When water in the guide shell during by basic emptying, to inhale the foam mouth emersion water surface and reach a certain height, impeller is drained because of the sewage in the guide shell; Draining thrust pop-off, original balance is broken, and inhales the foam machine and sinks at once; Guide shell is inhaled the foam mouth and is sunk to not having below the upstream face because of rapid, and meanwhile, the outer sewage of guide shell pours in the tube from impeller and guide shell delivery port gap rapidly under action of pressure; Thereby go round and begin again constantly pulsation sink-float.

In this process, when suction foam machine moved downward, guide shell was inhaled the foam mouth and is submerged under water, and the water surface of its origin-location is filled by foam mud scum on every side rapidly; Inhale the foam mouth when rising to the water surface when guide shell, capture and send under water after foam mud scum on the water surface is taken in the tube.Because after the hole in the mud scum was filled by water, its proportion was greater than the proportion of sewage in the pond, so floats in mud submerged rear portion again.And; Suction foam machine of the present invention will produce " shock wave " to its top and peripheral water body in the elevating movement process, guide shell and floating drum will produce effect of impact to the mud scum piece simultaneously; Thereby effectively break up clod; Abolish " bridging ", therefore thoroughly eliminate the phenomenon that mud is not inhaled in suction, remain desirable suction foam effect.

Description of drawings

Below in conjunction with accompanying drawing the present invention is further described.

Fig. 1 is the structural representation of one embodiment of the invention.

Fig. 2 is one of a Fig. 1 embodiment duty sketch map.

Fig. 3 is two sketch mapes of Fig. 1 embodiment duty.

Fig. 4 is three sketch mapes of Fig. 1 embodiment duty.

Fig. 5 is four sketch mapes of Fig. 1 embodiment duty.

The specific embodiment

Embodiment one

What the pulsating of present embodiment inhaled that the foam machine is used in time going automatically biological tank contains the mud scum foam, prevents that mud scum from building up on the water surface, keeps water surface cleaning.Its basic structure is as shown in Figure 1, guide shell 1 have last toroidal inhale foam mouth 1-1 and under reduce delivery port 1-2, inhale foam like this and drainage effect is best.Be " article " word through extension board 3 radially and three along circumference around the guide shell 1 and be uniformly distributed with floating drum 2 and be connected, so balance is good.Floating drum 2 be shaped as lower cylindrical top circular cone, its top exceeds horizontal plane, the outside is by pull rope 6 traction location.The impeller 5 that submersible motor 4 drives draining down is equipped with at the tube end of guide shell 1.

After the suction foam machine with present embodiment is placed in the biological tank water,,, is vertical direction and is suspended under the water surface in the buoyancy of floating drum because guide shell is connecting floating drum.During work, the motor-driven impeller rotates at a high speed, push the water in the guide shell to pond at the bottom of, form negative pressure in the tube, near the water of inhaling the foam mouth top is sucked together with the foam mud scum in the lump, pump into the water from the guide shell outlet through impeller.Owing to filled by water after the hole entry in the foam mud scum, therefore proportion sink under water and can not float again greater than the proportion of sewage in the pond.Simultaneously, the negative pressure that suction foam mouth top forms makes water surface foam mud scum at a distance flow to suction foam mouth continuously, gets into and inhales the foam machine, thereby reach the purpose of removing water surface foam mud scum gradually.At a high speed the impeller of rotation also has the effect of cutting and crushing for bulk foam and block mud scum, after it is broken up gas can be overflowed fast.Simultaneously, inhaling the foam machine also is the moving diving mixer of vertically installing of a table flotation, has the effect of stirring sewage, helps the supporting sewage disposal measure of taking.

Particularly, the automatic lifting principle of this suction foam machine breast-stroke action is:

If inhaling foam machine weight is W, inhaling foam machine buoyancy when static in sewage is F, and the thrust that produces during impeller work is T.When impeller does not turn round when not producing thrust, to inhale the foam machine and in water, remain static, guide shell is inhaled the foam mouth apart from water surface degree of depth h1, and is as shown in Figure 2, and this moment, F=W promptly inhaled the weight that buoyancy that foam machine floating drum bears equals to inhale the foam machine.

After impeller is produced thrust by the motor-driven rotation, under the reaction force of water body, inhaling the foam machine will move upward, at this moment T+F＞W.Along with the rising of inhaling the foam machine, float draft reduces, and buoyancy reduces thereupon.Inhale the foam mouth when guide shell and rise to when concordant with the water surface, as shown in Figure 3, inhale the foam machine h1 height that risen, the buoyancy that floating drum reduces is Δ F1, then T+ (F-Δ F1)=W.

Be full of water in the guide shell and inhale the foam mouth when flushing because designing and calculating makes with the water surface, draining thrust that produces during impeller operation and the weight of the buoyancy sum of inhaling the foam machine greater than suction foam machine, so guide shell can continue to rise; Omit behind the water surface when its suction foam mouth rises to, can not get in the tube because the peripheral water of guide shell is intercepted by guide shell, the foam mud scum quilt above it all sucks.Afterwards, the water yield in the tube constantly reduces.Along with the decline of water level in the tube, guide shell makes its suffered buoyancy increase because of the volume that is drained strengthens, and inhales foam machine integral body and will continue to rise.When water is drained in the guide shell, inhale the foam mouth emersion water surface and reach maximum height h2, as shown in Figure 4, the buoyancy of establishing increase is Δ F2, its size equals the sewage weight that guide shell arranges, and is in the opposite direction, then T+ (F-Δ F1)+Δ F2=W.

When the moment of inhaling foam machine hit the ceiling h2, impeller is drained because of the sewage in the guide shell, the thrust pop-off, and balance is broken, and inhales the foam machine and sinks at once.Meanwhile, the outer sewage of guide shell pours in the tube from impeller and guide shell delivery port gap rapidly under action of pressure, has filled the space below the guide shell water surface, the buoyancy Δ F2 that inhales foam machine rising h2 height is disappeared, then F-Δ F1＜W.Since this in a flash in, the thrust of impeller is also recovered as yet fully, guide shell is inhaled the foam mouth and sunk to not having below the upstream face rapidly with inhaling the foam machine, and is as shown in Figure 5.

Along with the sinking of suction foam machine, the buoyancy of floating drum increases, and simultaneously, because of impeller has recovered thrust, inhales the foam machine and will stop to sink and floating again, gets into the cyclic process that next round is inhaled foam, so goes round and begins again, and continues pulsation and rises and falls.

Facts have proved that the foam machine of present embodiment need not complicated mechanism and control device, can be automatically make in the similar breaststroke (the emersion water surface) on, the pulsation sink-float of (diving beneath the water) once continuously at the water surface.And; Inhale the foam machine in the elevating movement process at this, can produce " shock wave " to its top and peripheral water body, guide shell and floating drum then produce effect of impact to the mud scum piece; Thereby effectively break up clod; Abolish " bridging ", thereby be applicable to various light foams of inspiration and block mud scum, reach desirable suction foam effect (the maximum submergence depth h1 that preferably inhales the foam mouth equals the maximum height h2 that it emerges).

Except that the foregoing description, the present invention can also have other embodiments.For example, inhale the mounting means of foam machine and can decide based on field condition, except that cable traction, can also take guide rod to fix, roaming is mobile etc.Present embodiment adopts the easiest cable traction mounting means; Fasten respectively on the becket bridle of three floating drums with three ropes; Divide three directions to draw and be fixed on the structures in three ropes again, can assemble change according to the foam mud scum like this, the position of convenient adjustment suction foam machine.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.

Claims

1. a pulsating is inhaled the foam machine; It is characterized in that: comprise inhale the foam mouth the upper water-out mouth under guide shell; Be connected with one group of floating drum that is uniformly distributed along the circumference around the said guide shell, the impeller of driven by motor draining down is equipped with at the tube end of said guide shell, and the top of said floating drum exceeds horizontal plane; Be full of water in the said guide shell and inhale the foam mouth when flushing with the water surface, the draining thrust that produces during said impeller operation and the buoyancy sum of said suction foam machine are greater than the weight of said suction foam machine.

2. pulsating according to claim 1 is inhaled the foam machine, it is characterized in that: said guide shell has toroidal and inhales the foam mouth and reduce delivery port.

3. pulsating according to claim 2 is inhaled the foam machine, it is characterized in that: be " article " word through extension board radially and three along circumference around the said guide shell and be uniformly distributed with floating drum and be connected.

4. pulsating according to claim 3 is inhaled the foam machine, it is characterized in that: said floating drum be shaped as lower cylindrical top circular cone.

5. pulsating according to claim 4 is inhaled the foam machine, it is characterized in that: the said guide shell outside is by pull rope traction location.

6. pulsating according to claim 5 is inhaled the foam machine, and it is characterized in that: the maximum submergence depth of said suction foam mouth equals the maximum height that it emerges.