CN108002585B

CN108002585B - Sewage treatment equipment

Info

Publication number: CN108002585B
Application number: CN201711235021.1A
Authority: CN
Inventors: 邱红光
Original assignee: Ningbo Jiangbei Fengshang Environmental Protection Equipment Co ltd
Current assignee: Daqing Tiandezhong Petroleum Science & Technology Co ltd
Priority date: 2017-11-30
Filing date: 2017-11-30
Publication date: 2020-04-07
Anticipated expiration: 2037-11-30
Also published as: CN108002585A

Abstract

The invention belongs to the technical field of sewage treatment, and particularly relates to a sewage treatment device; comprises a sedimentation tank, a coagulation tank, a filtering tank and a disinfection tank which are communicated in sequence; a coarse filtering layer, a fine filtering layer and a re-filtering layer are sequentially arranged in the filtering tank from top to bottom; the disinfection pool comprises a support frame, a purified water bucket, an air blowing mechanism and a power mechanism for rotating the purified water bucket; a plurality of water hoppers are arranged in the water purifying bucket, and the water hoppers are connected to the inner wall of the water purifying bucket to form a water hopper ring; the air blowing mechanism comprises an air blowing pipe and a water wheel; one end of the air blowing pipe is provided with an air inlet, the other end of the air blowing pipe extends into the purified water bucket, the air blowing pipe is rotatably connected with the purified water bucket, the center line of the air blowing pipe is superposed with the center line of the purified water bucket, and the air blowing pipe is provided with a plurality of air blowing holes; when the water purifying bucket rotates in the forward direction, the water wheel rotates in the reverse direction under the power of the water flowing out of the water bucket. This scheme can increase chlorine and water's area of contact, lets chlorine and water intensive mixing, improves the water purification effect.

Description

Sewage treatment equipment

Technical Field

The invention belongs to the technical field of sewage treatment, and particularly relates to sewage treatment equipment.

Background

As is well known, natural precipitation and lake and river water cannot be used for direct drinking or production, and because of various natural factors and human factors, the water contains various impurities, and direct drinking causes great harm to human health, various countries think of treating and disinfecting the water.

From the aspect of water supply treatment, impurities in the water body can be divided into three categories, namely suspended matters, colloids and dissolved matters. The water purification treatment of urban water plants aims to remove suspended substances, colloidal substances, bacteria and other harmful components which can bring harm to human health and industrial production in the original water body, so that the purified water can meet the requirements of life drinking and industrial production.

Wherein the disinfection process does not completely destroy the microorganisms, but only requires the destruction of pathogenic microorganisms. Although most of bacteria and viruses can be removed from water through coagulation, sedimentation and filtration, the disinfection plays a role in ensuring that drinking water reaches the bacteriological index of drinking water, and simultaneously, the water keeps a certain residual chlorine amount at the tail end of the urban water pipe so as to control bacterial reproduction and prevent pollution. The chlorine adding amount (liquid chlorine) for disinfection is 1.0-2.5 g/m³In the meantime. Hypochlorous acid generated mainly by the reaction of chlorine gas and water acts as an oxidizing action inside bacteria, destroying the enzyme system of the bacteria and leading the bacteria to die. The sterilized water is lifted by the clean water tank through the water pump room to reach a certain water pressure, and then is delivered to thousands of households through the water delivery and distribution pipe network.

The disinfection tank is generally adopted in the existing disinfection equipment, and is communicated with the filter tank, so that the filtered water directly enters the disinfection tank, and then chlorine is introduced into the disinfection tank, thereby disinfecting the water. Such a disinfection apparatus has certain drawbacks: the disinfection tank is only a simple container, and after chlorine is introduced into static water, the chlorine and the water in the disinfection tank cannot be fully mixed, so that the water purification effect is poor.

Disclosure of Invention

The invention aims to provide sewage treatment equipment which can fully mix chlorine and water and improve the water purification effect.

In order to achieve the purpose, the invention provides the following technical scheme: the sewage treatment equipment comprises a sedimentation tank, a coagulation tank, a filtering tank and a disinfection tank which are sequentially communicated; a coarse filtering layer, a fine filtering layer and a re-filtering layer are sequentially arranged in the filtering tank from top to bottom; the disinfection pool comprises a support frame, a purified water bucket, an air blowing mechanism and a power mechanism for rotating the purified water bucket; the water purifying bucket is obliquely and rotatably arranged on the supporting frame, the high end of the water purifying bucket is provided with a water inlet, the low end of the water purifying bucket is provided with a water outlet, a plurality of water hoppers are arranged in the water purifying bucket, and the water hoppers are connected to the inner wall of the water purifying bucket to form a water hopper ring; the air blowing mechanism comprises an air blowing pipe and a water wheel, and the water wheel is fixed on the air blowing pipe; one end of the air blowing pipe is provided with an air inlet, the other end of the air blowing pipe extends into the purified water bucket, the air blowing pipe is rotatably connected with the purified water bucket, the center line of the air blowing pipe is superposed with the center line of the purified water bucket, and the air blowing pipe is provided with a plurality of air blowing holes; when the water purifying bucket rotates in the forward direction, the water wheel rotates in the reverse direction under the power of the water flowing out of the water bucket.

Compared with sewage treatment equipment in the prior art, the technical scheme has the following beneficial effects:

1. the water purifying bucket is driven to rotate by the power mechanism, the water bucket is driven by the water purifying bucket to rotate in the circumferential direction in the water purifying bucket, tap water can be scooped up when the water bucket rotates to the bottom of the water purifying bucket, and water is poured out in the process of rotating to the top of the water purifying bucket, so that the contact area between the chlorine gas and the water in the sterilizing gas can be increased; meanwhile, the chlorine can be more fully dissolved in the water in the process that the water in the water bucket falls downwards; can fully mix chlorine and water, obviously improve the disinfection effect and improve the water purification effect.

2. Make water wheels carry out rotation opposite with water purification bucket rotation direction through the water that flows from the water bucket to make the air drum also rotate, chlorine in the air drum can discharge faster under the effect of centrifugal force like this, has more chlorine promptly to get into the water purification bucket, and the disinfection effect is better, and the kinetic energy of this technical scheme utilize water ingeniously makes water wheels rotate, and need not additionally add power device.

3. Because the density of the chlorine is greater than that of the air, the chlorine which is not dissolved in the water falling from the water bucket can be gradually settled into the water at the bottom of the purified water bucket, the water in the purified water bucket is disinfected, and the water purifying effect is improved.

4. The water bucket can continuously and repeatedly scoop water and pour water through the continuous rotation of the water purifying barrel, so that the disinfection is more thorough; and because the water purifying barrel rotates continuously, the water in the water purifying barrel is in a motion state all the time, which is beneficial to improving the dissolution rate of chlorine dissolved in the water, and the disinfection effect and the water purifying effect are better.

5. The sewage enters the sedimentation tank, then enters the coagulation tank, the filtering tank and the disinfection tank, so that the sedimentation of larger particles in the sewage is precipitated and separated firstly, and then is coagulated, and the use of a coagulant can be reduced; meanwhile, the coarse filter layer, the fine filter layer and the secondary filter layer can ensure that the precipitated water is fully filtered and then is subjected to subsequent disinfection, and the water purification effect is good.

In the first preferred scheme, as the preferred scheme of the basic scheme, a plurality of water bucket rings are uniformly distributed in the water purifying bucket, a plurality of water wheels are uniformly distributed on the air blowing pipe, the number of the water bucket rings is equal to that of the water wheels, and the water bucket rings correspond to the water wheels one by one.

The water scooping amount and the water pouring amount can be further increased by the aid of the water bucket rings, chlorine can be in contact with more water in the falling process of the water, and the disinfection effect is better; simultaneously, more water strikes on the water wheels, and the water wheels rotate faster, and it is better to discharge chlorine effect, and the disinfection effect is better.

And the second preferred scheme is a preferred scheme of the basic scheme, the water inlet is rotatably connected with an exhaust pipe, and the exhaust pipe is fixedly arranged on the support frame. For discharging gases generated during the sterilization process (e.g., chlorine and HCl gas generated from water).

The air blowing pipe comprises a large-diameter pipe and a small-diameter pipe, the large-diameter pipe is fixedly arranged on the support frame, and one end of the large-diameter pipe is provided with an air inlet; one end of the small-diameter pipe is positioned outside the purified water bucket and is rotationally connected with the other end of the large-diameter pipe, the other end of the small-diameter pipe is positioned in the purified water bucket, and the water wheel and the air blowing hole are arranged on the small-diameter pipe.

The diameter of the large-diameter pipe for introducing the chlorine is larger than that of the small-diameter pipe, so that the air pressure in the large-diameter pipe is larger than that in the small-diameter pipe, and the chlorine is discharged more quickly; the disinfection effect is better.

As a preferred scheme of the basic scheme, the first preferred scheme, the second preferred scheme or the third preferred scheme, the power mechanism comprises a motor, a driving gear and a driven gear; the output shaft of motor is connected with the driving gear, and the driving gear meshes with driven gear, and driven gear fixes on the outer wall of water purification bucket. The water purifying bucket is simple in structure and convenient to operate.

Preferably, in the fifth aspect, as a preferred aspect of the fourth aspect, the diameter of the driving gear is larger than that of the driven gear. Therefore, the rotating speed of the water purifying bucket can be reduced to a certain extent, and the water purifying bucket rotates more stably.

And the preferable scheme is six, and as the preferable scheme of the basic scheme, the coarse filtering layer is gauze, the fine filtering layer is activated carbon, and the secondary filtering layer is cotton. The gauze can well filter out impurities with larger particles, the activated carbon can further improve the filtering effect of water by utilizing the self adsorption effect, and finally, the cotton can further adsorb some impurities which are insoluble in water; not only the water purification effect is good, but also the manufacturing cost is lower.

Preferably, the seventh preferred embodiment is a sixth preferred embodiment, and the top of the filtering tank is provided with a water spraying head with a narrow top and a wide bottom. Therefore, water can be sprayed onto the filter layer, the action area of the filter layer is enlarged, and the filtering efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of an embodiment of a sewage treatment apparatus according to the present invention;

FIG. 2 is a schematic view of the sterilization tank of FIG. 1;

fig. 3 is a sectional view taken along line a-a in fig. 2.

Detailed Description

The following is further detailed by the specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a support frame 1, a purified water barrel 2, a water inlet 20, an exhaust pipe 200, a water inlet pipe 201, a water outlet 21, a water bucket 3, a large-diameter pipe 4, a gas inlet 40, a small-diameter pipe 5, a gas blowing hole 50, a water wheel 6, a motor 7, a driving gear 70, a driven gear 71, a sedimentation tank 8, a coagulation tank 80, a filter tank 81, a sprinkler head 82, a coarse filter layer 83, a fine filter layer 84, a secondary filter layer 85, a disinfection tank 86, a water pumping pipe 87 and a water pump 88.

The embodiment is basically as shown in figure 1:

the sewage treatment equipment comprises a sedimentation tank 8, a coagulation tank 80, a filtering tank 81 and a disinfection tank 86 which are communicated in sequence. A water pumping pipe 87 is connected between the treatment pools, and a water pump 88 is arranged on the water pumping pipe 87. The filtering tank 81 is provided with a coarse filtering layer 83, a fine filtering layer 84 and a secondary filtering layer 85 from top to bottom. The coarse filter layer 83 is preferably a gauze material, the fine filter layer 84 is preferably an activated carbon particle material, and the secondary filter layer 85 is preferably a cotton material. The top of the filtering tank 81 is provided with a water spraying head 82 with a narrow top and a wide bottom, which is helpful for spraying water on the filtering layer, enlarges the action area of the filtering layer and improves the filtering efficiency.

As shown in fig. 2, the sterilizing compartment 86 includes a support frame 1, a fresh water bucket 2, an air blowing mechanism, and a power mechanism for rotating the fresh water bucket 2.

The purified water bucket 2 inclines downwards from left to right and is rotatably arranged on the supporting frame 1. The high end (left end) of the water purifying bucket 2 is provided with a water inlet 20, and the low end (right end) of the water purifying bucket 2 is provided with a water outlet 21. An exhaust pipe 200 is rotatably connected to the water inlet 20, and the exhaust pipe 200 is fixedly mounted on the support frame 1 for exhausting gas (such as HCl gas generated by chlorine and water) generated during the sterilization process. Inlet 20 department can also install an inlet tube 201, and inlet tube 201 is fixed mounting on support frame 1 also, and the external water that needs the disinfection of upper end of inlet tube 201, the pipe shaft run through blast pipe 200, water inlet 20, and in the lower extreme of inlet tube 201 stretched into water purification bucket 2, the aim at of design inlet tube 201 conveniently let the running water a small amount, continuously get into in water purification bucket 2. The outlet 21 at the lower end of the clean water tub 2 is preferably provided at an eccentric area of the bottom wall of the clean water tub 2, which helps the water in the clean water tub 2 to be intermittently discharged (i.e., when the outlet 21 is rotated to the lower side, the water is discharged, and when the outlet 21 is rotated to the upper side, the water is not discharged), which helps to prolong the retention time of the water in the clean water tub 2 and improve the sterilizing effect.

A plurality of water hoppers 3 are arranged in the purified water bucket 2, and as shown in figure 3, the water hoppers 3 are connected with the inner wall of the purified water bucket 2 to form a water hopper ring. The shape of the water bucket 3 is similar to that of a gourd ladle, the top of the water bucket is open, and the bottom of the water bucket is convex outwards to form a groove.

The air blowing mechanism comprises an air blowing pipe and a water wheel 6.

The air blowing pipe comprises a large-diameter pipe 4 and a small-diameter pipe 5, the large-diameter pipe 4 is fixedly arranged on the support frame 1, and the right end of the large-diameter pipe 4 is provided with an air inlet 40 for introducing a sterilizing gas (such as chlorine); the right-hand member of path pipe 5 is located water purification bucket 2 outside and rotates with the left end of thick footpath pipe 4 and be connected, and the left end of path pipe 5 is located water purification bucket 2, and path pipe 5 rotates and connects on water purification bucket 2, and the central line of path pipe 5 and the coincidence of the central line of water purification bucket 2, and the part that path pipe 5 is located water purification bucket 2 is equipped with air-blowing hole 50 for discharge the gaseous disinfection in the path pipe 5 to water purification bucket 2. The water wheel 6 is fixedly arranged on the small-diameter pipe 5 through a bearing.

When the clean water bucket 2 rotates in a forward direction, the water wheel 6 rotates in a reverse direction by the power of the water flowing out of the bucket 3. In order to increase the scooping amount of the water buckets 3 and enable the water wheels 6 to rotate faster, a plurality of water bucket rings can be uniformly distributed in the water purification bucket 2, a plurality of water wheels 6 are uniformly distributed on the air blowing pipe, the number of the water bucket rings is equal to that of the water wheels 6, and the water bucket rings correspond to the water wheels 6 one by one; the number of the water bucket rings and the water wheels 6 is five in the embodiment.

The power mechanism comprises a motor 7, a driving gear 70 and a driven gear 71; the output shaft of the motor 7 is connected with a driving gear 70, the driving gear 70 is meshed with a driven gear 71, and the driven gear 71 is fixed on the outer wall of the purified water bucket 2; the driving gear 70 has a diameter larger than that of the driven gear 71. The power mechanism can reduce the rotating speed of the purified water bucket 2 to a certain extent, and the purified water bucket 2 rotates more stably.

When sewage is treated, water enters the sedimentation tank 8 for sedimentation, and water and solid impurities at the bottom are separated; then the mixed solution is led into a coagulation tank 80 and added with a coagulant in the prior art for coagulation; pumping the water in the coagulation tank 80 to a water spraying head 82 of the filtering tank 81, spraying the water to the filtering tank 81 for triple filtration, and finally introducing the water into a disinfection tank 86 for disinfection.

During disinfection, the motor 7 is started, and chlorine is introduced from the air inlet 40 of the large-diameter pipe 4; then, tap water to be sterilized is introduced from the water inlet pipe 201. The output shaft of the motor 7 drives the driving gear 70 to rotate, the driving gear 70 drives the driven gear 71 to rotate, and the driven gear 71 drives the purified water bucket 2 to rotate.

As shown in fig. 3, when water purification bucket 2 clockwise turning, during the running water of water bucket 3 through water purification bucket 2 bottoms, can the splendid attire fill with the running water, along with water purification bucket 2's rotation, water bucket 3 also follows the rotation, until pouring out water, and hit and beat on waterwheel 6, make waterwheel 6 carry out reverse counter-clockwise motion, when water bucket 3 rotates to water purification bucket 2's top, the water in the water bucket 3 is fallen totally, and can not continue to fall into water again to waterwheel 6 on, even if only the left side of waterwheel 6 has water to hit always and beat, and waterwheel 6's right side does not have, thereby guarantee waterwheel 6 and keep anticlockwise rotating always.

Meanwhile, chlorine gas introduced into the large-diameter pipe 4 from the air inlet 40 enters the small-diameter pipe 5 and is discharged into the purified water bucket 2 from the air blowing hole 50, and tap water poured out of the water bucket 3 is disinfected; the shape of the water falling out of the water bucket 3 is similar to a waterfall shape, so that the contact area of chlorine and water is enlarged, and the chlorine can be dissolved in the water more fully in the process that the water in the water bucket 3 falls downwards; meanwhile, the water wheel 6 rotates to drive the small-diameter pipe 5 to rotate, so that chlorine in the small-diameter pipe 5 can be discharged more quickly under the action of centrifugal force, namely more chlorine enters the water purifying barrel 2, and the disinfection effect is better; the diameter of the large-diameter pipe 4 which is filled with the chlorine is larger than that of the small-diameter pipe 5, so that the air pressure in the large-diameter pipe 4 is larger than that in the small-diameter pipe 5, and the chlorine is discharged more quickly; along with the rotation of the purified water barrel 2, the disinfection process is continuously repeated, and the disinfection is more thorough. Particularly, because the density of the chlorine is greater than that of the air, the chlorine which is not dissolved in the water falling from the water bucket 3 can be gradually settled into the water at the bottom of the purified water bucket 2, and the disinfection effect is better; meanwhile, because the purified water barrel 2 is always in a rotating state, the water in the purified water barrel 2 is always in a moving state, which is beneficial to improving the dissolution rate of chlorine dissolved in water and has better disinfection effect. The sterilized water is discharged from the gap of the water outlet 21. Therefore, compared with the prior art, the technical scheme has better disinfection effect and better water purification effect when chlorine is introduced into static water.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. Sewage treatment device, its characterized in that: comprises a sedimentation tank, a coagulation tank, a filtering tank and a disinfection tank which are communicated in sequence; a coarse filtering layer, a fine filtering layer and a re-filtering layer are sequentially arranged in the filtering tank from top to bottom; the disinfection pool comprises a support frame, a purified water bucket, an air blowing mechanism and a power mechanism for rotating the purified water bucket; the water purifying bucket is obliquely and rotatably arranged on the supporting frame, a water inlet is formed in the high end of the water purifying bucket, a water outlet is formed in the low end of the water purifying bucket, a plurality of water hoppers are arranged in the water purifying bucket, and the water hoppers are connected to the inner wall of the water purifying bucket to form a water hopper ring; the air blowing mechanism comprises an air blowing pipe and a water wheel, and the water wheel is fixed on the air blowing pipe; one end of the air blowing pipe is provided with an air inlet, the other end of the air blowing pipe extends into the purified water bucket, the air blowing pipe is rotatably connected with the purified water bucket, the center line of the air blowing pipe is superposed with the center line of the purified water bucket, and the air blowing pipe is provided with a plurality of air blowing holes; when the water purifying bucket rotates in the forward direction, the water wheel rotates in the reverse direction under the power of the water flowing out of the water bucket.

2. The sewage treatment apparatus of claim 1, wherein: the water purification device is characterized in that a plurality of bucket rings are uniformly distributed in the water purification bucket, a plurality of water wheels are uniformly distributed on the air blowing pipe, the number of the bucket rings is equal to that of the water wheels, and the bucket rings correspond to the water wheels one to one.

3. The sewage treatment apparatus of claim 1, wherein: the water inlet is rotatably connected with an exhaust pipe, and the exhaust pipe is fixedly mounted on the support frame.

4. The sewage treatment apparatus of claim 1, wherein: the air blowing pipe comprises a large-diameter pipe and a small-diameter pipe, the large-diameter pipe is fixedly arranged on the support frame, and one end of the large-diameter pipe is provided with the air inlet; one end of the small-diameter pipe is positioned outside the purified water bucket and is rotationally connected with the other end of the large-diameter pipe, the other end of the small-diameter pipe is positioned inside the purified water bucket, and the water wheel and the air blowing hole are positioned on the small-diameter pipe.

5. The sewage treatment apparatus according to any one of claims 1 to 4, wherein: the power mechanism comprises a motor, a driving gear and a driven gear; the output shaft of the motor is connected with the driving gear, the driving gear is meshed with the driven gear, and the driven gear is fixed on the outer wall of the purified water bucket.

6. The sewage treatment apparatus of claim 5, wherein: the diameter of the driving gear is larger than that of the driven gear.

7. The sewage treatment apparatus of claim 1, wherein: the coarse filtering layer is gauze, the fine filtering layer is activated carbon, and the refilter layer is cotton.

8. The sewage treatment apparatus of claim 7, wherein: and the top of the filtering tank is provided with a water spraying head with a narrow top and a wide bottom.