CN215365042U - Horizontal flow herringbone inclined plate precipitator - Google Patents

Abstract

The utility model relates to a horizontal flow herringbone inclined plate precipitator which comprises a precipitator box body, wherein the precipitator box body comprises a plurality of precipitation units formed by vertically stacking a plurality of herringbone inclined plates, two sides of each herringbone inclined plate are vertically and downwards connected with side surface sealing plates, the precipitation units are arranged in parallel to form a precipitation pool, a sludge discharge channel is arranged between each precipitation unit and the corresponding precipitation unit, and a sludge accumulation area is arranged below each sludge discharge channel. The utility model designs the precipitator which has high water treatment efficiency, large water yield, good effluent quality, strong anti-interference capability and stable operation. The utility model is a universal water treatment device, which can be widely applied to tap water and sewage treatment, industrial wastewater treatment and black and odorous water treatment.

Description

Horizontal flow herringbone inclined plate precipitator

Technical Field

The utility model relates to the technical field of water treatment and sedimentation equipment, in particular to a horizontal flow herringbone inclined plate precipitator.

Background

Precipitation is an important process in water treatment processes. The function of the device is to remove suspended matters in water, thereby achieving the purpose of solid-liquid separation. Suspended matter in water moves downward under the action of gravity, i.e. settles, according to the "shallow pool theory" of water treatment. When the suspended substances reach the bottom of the sedimentation tank, the suspended substances are removed. The suspension descending speed is unchanged, the shallower the sedimentation tank is, the shorter the suspension descending distance is, the shorter the suspension is removed, and the higher the sedimentation efficiency is. Thus, an upward flow inclined tube, an inclined plate, a lateral flow inclined plate, and the like have been developed. After long-term operation, the technologies have the defects of uneven water distribution, unstable precipitation effect and the like. In order to further improve the inclined tube sedimentation technology and improve the sedimentation efficiency, the utility model provides a horizontal flow herringbone inclined plate precipitator.

SUMMERY OF THE UTILITY MODEL

In view of the defects in the prior art, the utility model relates to a horizontal flow herringbone inclined plate precipitator, and designs a precipitator which has the advantages of high water treatment efficiency, large water yield, good effluent quality, strong anti-interference capability and stable operation according to the problems. The utility model is a universal water treatment device, which can be widely applied to tap water and sewage treatment, industrial wastewater treatment and black and odorous water treatment.

The utility model relates to a horizontal flow herringbone inclined plate precipitator which comprises a precipitator box body, wherein the precipitator box body comprises a plurality of precipitation units formed by vertically stacking a plurality of herringbone inclined plates, two sides of each herringbone inclined plate are vertically and downwards connected with side surface sealing plates, the precipitation units are arranged in parallel to form a precipitation pool, a sludge discharge channel is arranged between each precipitation unit and the corresponding precipitation unit, and a sludge accumulation area is arranged below each sludge discharge channel.

By adopting the scheme, a certain gap is reserved between the two sedimentation units and is used as a sludge discharge channel. The suspended solid in rivers deposits at first and forms mud on the swash plate, because gliding force on the slope is greater than frictional force, so mud is unstable, in gliding the row's mud passageway between two sedimentation units on the swash plate very fast, by arranging free fall in the mud passageway, direct landing is to the long-pending mud district of sedimentation tank bottom.

Furthermore, the front end, the middle part and the rear end of the sludge discharge channel are provided with pillars, and the pillars support the two sides of the herringbone inclined plate to keep consistent distance and block water flow.

By adopting the scheme, 2-3 pillars are arranged in each sludge discharge channel to play a role of supporting the herringbone inclined plates, so that both sides of all the inclined plates of each unit are fixed on the rectangular pillars, the interval between the upper inclined plates and the lower inclined plates is ensured to be unchanged, a stable structure is formed, the inclined plates can also be used as hydraulic choked flow pieces, raw water is prevented from entering the sludge discharge channel, the water flow in the sludge discharge channel is kept static, the water flow is prevented from horizontally flowing in the sludge discharge channel, and the raw water is prevented from entering a precipitator and then flowing in a short time.

Furthermore, a water flow channel is arranged between every two herringbone inclined plates, the water flow channel is provided with a water outlet hole plate, a plurality of water outlet holes are formed in the water outlet hole plate, and each hole of each water outlet hole corresponds to one sedimentation tank.

By adopting the scheme, a semi-closed water body sedimentation space-sedimentation tank is formed between the side sealing plates and the upper and lower inclined plates. The lower part of the side sealing plate is provided with a sludge discharge gap of the inclined plate of the sedimentation tank. When the sludge in the upper sedimentation tank falls to the side of the lower sedimentation tank from the sludge discharge channel, the inside of the herringbone inclined plate sedimentation tank cannot be disturbed by the falling sludge due to the protection of the side sealing plates. When the flow velocity of a certain water outlet is increased, the head loss of the water port of the water outlet is in direct proportion to the square of the flow velocity, the resistance of the via hole is rapidly increased, and the flow velocity in the sedimentation tank is inhibited to be accelerated, so that the flow in all sedimentation tanks is balanced. The horizontal flow velocity in the sedimentation tank is controlled by using the orifice outflow, so that the uneven water outlet of the sedimentation tank is avoided, the consistency of the flow velocity in all sedimentation tanks is ensured, and the water quality of the water outlet of the herringbone inclined plate settler is ensured.

Further, an aeration pipe is perforated below the lowermost herringbone inclined plate in the sedimentation unit.

By adopting the scheme, the problem that bacterial sludge films and other dirt which are not easy to slide down are easily bred in the operation of the inclined tube sedimentation tank is solved.

Further, the precipitator is provided with air outlet holes, the water outlet holes are located at the upper end of the herringbone, and the air outlet holes in the same precipitation unit are arranged in a row.

By adopting the scheme, the gas-water circulation channel is used as a gas-water circulation channel.

Further, the distance from top to bottom of one end of the herringbone inclined plate is larger than that of the other end of the herringbone inclined plate, the end with the larger distance from top to bottom faces the flocculation area, and the end with the smaller distance from top to bottom faces the water collecting tank.

By adopting the scheme, the herringbone inclined plate at the front end of the precipitator is wide in interval from top to bottom, so that sludge discharge is facilitated, and the herringbone inclined plate at the rear end of the precipitator is narrow in interval from top to bottom, so that precipitation is facilitated.

Furthermore, a flocculation tank is arranged in front of the sedimentation tank.

By adopting the scheme, after coagulant is added into raw water, colloid in the water is destabilized in the flocculation reaction chamber and collides with each other to be accumulated into alum flocs with large particle size, and the alum flocs have high density and can sink quickly. After raw water after flocculation reaction enters the herringbone inclined plate sedimentation tank from the outlet of the flocculation tank, as the vertical height between the upper herringbone inclined plate and the lower herringbone inclined plate is small, the sedimentation distance of alum flocs is short, and flocculation particles in the water, namely the alum flocs, can be quickly settled on the inclined plates. The water continuously flows to the rear end of the herringbone sloping plate, alum blossom is continuously precipitated on the sloping plate, the concentration of suspended matters in the water is lower and lower, and the turbidity in the water can be reduced to 2-3NTU to the tail end of the herringbone sloping plate. The herringbone sloping plate can remove most suspended matters in water, and the aim of purifying water quality is fulfilled.

The utility model has the following beneficial effects:

1. high water treatment efficiency, large water yield, good effluent quality, strong anti-interference capability and stable operation.

2. The water depth and the pool length can be fully utilized for sedimentation.

3. And under the condition of the same water treatment scale, the occupied area is small, and the structure is compact. On a unit horizontal plane, the herringbone inclined plate can produce much more water than a conventional inclined tube sedimentation tank, and the theoretical water production is 5 times that of an upward flow inclined tube sedimentation tank.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic cross-sectional structure of an embodiment of the present invention.

Fig. 2 is a schematic plan view of an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a swash plate according to an embodiment of the present invention.

Fig. 4 is a diagram of a water outlet panel according to an embodiment of the present invention.

Reference numeral, 1, a herringbone sloping plate; 2. side surface sealing plates; 3. a pillar; 4. a water outlet hole; 5. an aeration pipe; 6. a sludge discharge pipe; 7. a sludge discharge channel; 8. air holes are formed; 9. a water outlet pore plate; 10. a flocculation tank; 11. a water collection tank; 12. a mud accumulation area; A. a precipitator tank; B. a precipitation unit; C. a sedimentation tank.

Detailed Description

While the embodiments of the present invention will be described and illustrated in detail with reference to the accompanying drawings, it is to be understood that the utility model is not limited to the specific embodiments disclosed, but is intended to cover various modifications, equivalents, and alternatives falling within the scope of the utility model as defined by the appended claims.

For the convenience of understanding the embodiments of the present invention, the following description will be further explained by taking specific embodiments as examples with reference to the drawings, and the embodiments are not to be construed as limiting the embodiments of the present invention.

Embodiment 1 of the utility model is shown by referring to fig. 1-4, and comprises a precipitator box body a, a herringbone sloping plate 1, a side sealing plate 2, a pillar 3, a water outlet pore plate 9, an aeration system consisting of a flocculation tank aeration pipe 5, and a sludge discharge system consisting of a sludge accumulation area 12, a sludge discharge pipe 6 and a sludge discharge channel 7.

Referring to fig. 3, the herringbone sloping plate 1 is formed by oppositely splicing two sloping plates with an inclination angle of 60 degrees with the horizontal plane, an included angle between the two sloping plates is 60 degrees, a left sloping plate and a right sloping plate form a herringbone, and the cross section of the herringbone sloping plate 1 is an equiangular triangle with two sloping sides and a bottom side forming an inner angle of 60 degrees. The structure of the roof is derived from a roof structure of a house, a ridge is formed by intersecting a front slope and a rear slope of the roof, and the ridge of the herringbone inclined plate 1 extends along the length direction by 1-2 m. The two slopes of the herringbone sloping plate 1 are intersected at the vertex, and a water outlet hole 4 is formed in the vertex.

A plurality of the personal-shaped inclined plates 1 are arranged in an overlapped mode at certain intervals to form a personal-shaped inclined plate sedimentation unit B. The space between the upper herringbone inclined plate 1 and the lower herringbone inclined plate 1 is a water flow channel, water flows horizontally along the surface of the inclined plates in the water flow channel, and each channel forms a micro horizontal flow sedimentation tank C. Each herringbone inclined plate precipitation unit B consists of a plurality of identical micro horizontal flow sedimentation tanks C.

A plurality of the inclined plate sedimentation units B shaped like a Chinese character 'ren' are arranged in parallel to form a inclined plate sedimentation tank shaped like a Chinese character 'ren'. A certain gap is left between the two sedimentation units B and is used as a sludge discharge channel 7. Suspended matters in water flow are firstly precipitated on the inclined plate to form sludge, and because the gliding force on the herringbone inclined plate 1 is greater than the friction force, the sludge is unstable, rapidly slides down from the herringbone inclined plate 1 to a sludge discharge channel 7 between two precipitation units, and directly slides down to a sludge accumulation area 12 at the bottom of the sedimentation tank in the free falling of the sludge discharge channel 7.

2-3 pillars 3 are arranged in each sludge discharge channel 7, the pillars 3 are used for supporting the herringbone inclined plates 1 as structural members, two sides of all the herringbone inclined plates 1 of each precipitation unit B are fixed on the rectangular pillars 3, the distance between the upper herringbone inclined plates 1 and the lower herringbone inclined plates 1 is guaranteed to be unchanged, and a stable structure is formed. And the water-flow-resistant plug is used as a hydraulic flow-resistant piece to prevent raw water from entering the sludge discharge channel 7, keep water flow in the sludge discharge channel 7 static, prevent water flow from horizontally flowing in the sludge discharge channel 7 and avoid short flow after the raw water enters the precipitator. The pillars 3 are respectively arranged at the inlet (front end), the outlet (rear end) and the middle (middle) of the herringbone inclined plate sedimentation unit.

In order to prevent the interference of the downward sliding of the sludge in the sludge discharge channel 7 to the sedimentation process inside the herringbone inclined plate 1, a vertical side surface sealing plate 2 is connected below each herringbone inclined plate 1, and a semi-closed water body sedimentation space-sedimentation tank C is formed between the side surface sealing plate 2 and the upper herringbone inclined plate 1 and the lower herringbone inclined plate 1. The lower part of the side sealing plate is provided with a mud discharge gap of an inclined plate C of the sedimentation tank. When the sludge in the upper sedimentation tank falls to the side of the lower sedimentation tank C from the sludge discharge channel 7, the inside of the herringbone inclined plate sedimentation tank C is not disturbed by the falling sludge due to the protection of the side sealing plates 2.

In order to evenly distribute water in each herringbone sloping plate micro sedimentation tank C, the flow speed of water flow in all the herringbone sedimentation sloping plate flow channels is consistent, the phenomena of overhigh horizontal flow speed and uneven load in a local sedimentation tank are avoided, alum floc is overflowed, and the quality of outlet water is reduced. The measures are as follows: at the outlet of the sloping plate, a water outlet hole plate 9 is arranged. Corresponding to the herringbone inclined plate sedimentation tanks, the water outlet hole plates 9 are fully distributed with water outlet holes 4 with equal diameters, and each sedimentation tank is provided with one water outlet hole 4. The size of the aperture is determined by the requirement that a head loss of 5cm or more is produced at the orifice when the flow of clean water in the sedimentation basin passes through the outlet opening 4.

Aiming at the problem that bacteria, sludge films and other dirt which are not easy to slide down are easy to breed when the inclined tube sedimentation tank operates, the utility model is provided with an aeration flushing device, and the perforated aeration pipe 5 is arranged at the bottom of the sedimentation unit B. Each settling unit B is provided with a perforated aeration pipe 5. Meanwhile, an air hole 8 is arranged on the top of each of the square-shaped inclined plates, namely the ridge, in parallel, the diameter d =10-20mm of the air hole 8, and the distance between holes is 150mm, so that the air hole is used as a channel for air-water circulation.

When the water treatment equipment runs, the herringbone inclined plate precipitator box body A and the filter tank at the rear end run in a linkage manner. When the filter tank is back flushed, the sedimentation tank is back flushed with air. When the inclined plate sedimentation tank is back-washed, the air inlet valve of the perforated aeration pipe 5 of the inclined plate bottom plate is opened, air is emitted from the perforated aeration pipe, rises and enters the air holes 8 at the top of the herringbone inclined plate, and the air penetrates through the herringbone inclined plate 1 from the bottom to the upper layer to rise until finally emitted out of the water surface. And after 3-5 minutes of aeration, closing the aeration valve. After 5 minutes of rest, the reactor can be put into operation again.

In the operation process of the sedimentation tank C, most suspended matters are precipitated to the bottom of the sedimentation tank at the front section of the sedimentation tank, and the remaining suspended matters in water are small-particle alum flowers with slow sinking speed. In the front section, in order to prevent the sedimentation tank C between the upper part and the lower part of the herringbone inclined plate 1 from being blocked by high-concentration sludge, the upper part and the lower part of the herringbone inclined plate are wide-spaced herringbone inclined plates. In order to strengthen the overall precipitation effect, at the rear section of the herringbone sloping plate, the narrow-spacing herringbone sloping plate is adopted due to the low concentration of suspended matters in water. Namely, the wide-interval herringbone inclined plates 1 are used in the whole process of the herringbone inclined plate precipitation unit B, and a short herringbone inclined plate 1 is additionally arranged between two herringbone inclined plates 1 in the rear section. The settling distance of suspended particles is shortened, the residual suspended substances in water are quickly removed, and the turbidity of the discharged water is reduced.

The bottom of the herringbone sloping plate 1 is provided with a sludge discharge pipe 6 for discharging sludge at the bottom in time. The sludge discharge space is a closed space sludge accumulation area 12 with a certain height for static sedimentation and concentration of sludge, so that the phenomenon that a bottom sludge layer is too high and the sludge discharge channel 7 on the upper part is jacked to influence smooth sludge discharge of the herringbone inclined plate 1 is avoided. The front end of the sludge accumulation area 12 is sealed by a sealing plate, and the effect of the sealing plate is to prevent raw water from entering the herringbone inclined plate group from the bottom of the inclined plate to cause short flow.

The water collecting tank 11 is arranged behind the water outlet pore plate 9, and the water collecting tank 11 is used for collecting the water outlet on the water outlet pore plate 9 and conveying the settled clean water to the next filtering process. The length of the water collection trough 11 is the same as the total width of the herringbone swash plate assembly, and the height of the water collection trough is the same as the total height of the herringbone swash plate assembly.

When in operation, a flocculation reaction device is arranged at the front end of the herringbone inclined plate precipitator. After coagulant is added into raw water, colloid in the water in the flocculation reaction chamber is destabilized and accumulated into alum flocs with large particle size, and the alum flocs can sink quickly. After raw water after flocculation reaction enters a herringbone inclined plate precipitator box body A from an outlet of a flocculation tank 10, due to the fact that the vertical height between an upper herringbone inclined plate and a lower herringbone inclined plate is small, the settlement distance of alum flocs is short, and flocculation particles in the water, namely the alum flocs, can be rapidly settled on the herringbone inclined plate 1. The water continuously flows to the rear end of the herringbone sloping plate 1, alum blossom is continuously precipitated on the sloping plate, the concentration of suspended matters in the water is lower and lower, and the turbidity in the water can be reduced to 2-3NTU to the tail end of the herringbone sloping plate. The herringbone sloping plate 1 can remove most suspended matters in water, and the aim of purifying water quality is fulfilled.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (7)

1. A horizontal flow herringbone inclined plate precipitator is characterized in that: including the precipitator box, include a plurality of precipitation units that constitute by a plurality of chevron shape swash plates stack from top to bottom on the precipitator box, the vertical downwardly connected with side shrouding in chevron shape swash plate both sides, parallel arrangement forms the sedimentation tank between the precipitation unit, be provided with the row mud passageway between precipitation unit and the precipitation unit, it is provided with long-pending mud district to arrange mud passageway below.

2. The horizontal flow herringbone inclined plate settler of claim 1, wherein: the front end, the middle part and the rear end of the sludge discharge channel are provided with pillars, and the pillars support the two sides of the herringbone inclined plate to keep consistent distance and block water flow.

3. The horizontal flow herringbone inclined plate settler of claim 2, wherein: a water flow channel is arranged between every two herringbone inclined plates, the water flow channel is provided with a water outlet hole plate, a plurality of water outlet holes are formed in the water outlet hole plate, and each hole of each water outlet hole corresponds to one sedimentation tank.

4. A horizontal flow herringbone inclined plate settler according to claim 3, wherein: and an aeration pipe is perforated below the lowest herringbone inclined plate in the precipitation unit.

5. The horizontal flow herringbone inclined plate precipitator of claim 4, wherein: the precipitator is provided with air outlet holes, the water outlet holes are located at the upper end of the herringbone, and the air outlet holes in the same precipitation unit are arranged in a row.

6. The horizontal flow herringbone inclined plate precipitator of claim 5, wherein: the upper and lower distance of one end of the herringbone inclined plate is larger than that of the other end, the end with the larger upper and lower distance faces the flocculation area, and the end with the smaller upper and lower distance faces the water collecting tank.

7. The horizontal flow herringbone inclined plate settler of claim 6, wherein: a flocculation tank is arranged in front of the sedimentation tank.

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