CN115818804A - Multidirectional flow suspension sludge encryption device and water treatment system - Google Patents

Abstract

The invention relates to the technical field of water treatment equipment, and provides a multidirectional flow suspended sludge encryption device and a water treatment system, wherein the multidirectional flow suspended sludge encryption device comprises: the water distribution structure is provided with a water inlet and a water outlet; the first flow guide structure is arranged at the water outlet; and the second flow guide structure is arranged at the downstream of the first flow guide structure, is suitable for guiding the water body to move along the vertical direction, and forms a dynamic sludge suspension layer for filtering the water body at the downstream of the second flow guide structure along the conveying direction of the water body. This multidirectional flow suspension mud encryption device for water in the space range is more even in horizontal direction and vertical direction water distribution, and at the in-process of water conservancy diversion, forms the developments mud suspension layer that is used for filtering the water in the low reaches of second water conservancy diversion structure, makes flocculation mud obtain the at utmost and remains, reduces the separation load of follow-up settling section, is favorable to improving purifying effect.

Description

Multidirectional flow suspension sludge encryption device and water treatment system

Technical Field

The invention relates to the technical field of water treatment equipment, in particular to a multidirectional flow suspended sludge encryption device and a water treatment system.

Background

The coagulating sedimentation treatment technology is an important technology in the current water treatment technology, can reduce the sensory indexes of water quality such as turbidity, chromaticity and the like of raw water, can remove various toxic and harmful pollutants, is an important guarantee for the reliable operation of a subsequent advanced treatment system, and has wide application in the aspects of drinking water treatment, sewage and wastewater treatment, high COD (chemical oxygen demand) and high salt water treatment and the like. In the traditional coagulating sedimentation technology, the medicament and water are fully mixed by multistage stirring at the front section, and then the precipitation and the filtration at the rear section are carried out.

The current process flow in the coagulating sedimentation is coagulating, flocculating and sedimentation separation. After the sludge formed in the flocculation section stays for a short time, the sludge completely enters the precipitation section, and the separation of the sludge and the water body is completed in the precipitation section, so that the separation load of the precipitation section is higher, and the treatment capacity and the purification effect are influenced.

Disclosure of Invention

Therefore, the technical problem to be solved by the present invention is to provide a multi-directional flow suspended sludge encryption apparatus and a water treatment system, in which the separation of sludge and water is completely completed in a settling section, resulting in a higher separation load of the settling section and affecting the purification effect.

The invention provides a multidirectional flow suspended sludge encryption device, which comprises: the water distribution structure is provided with a water inlet and a water outlet; the first flow guide structure is arranged at the water outlet and is suitable for guiding the water body to flow along the horizontal direction; and the second flow guide structure is arranged at the downstream of the first flow guide structure, is suitable for guiding the water body to move along the vertical direction, and forms a dynamic sludge suspension layer for filtering the water body at the downstream of the second flow guide structure along the conveying direction of the water body.

Furthermore, the water distribution structure comprises a main channel and a branch channel, wherein the inlet of the main channel is the water inlet, the outlet of the main channel is communicated with the inlet of the branch channel, and the outlet of the branch channel is the water outlet.

Furthermore, the cross sections of the main channel and the branch channels are triangular along the direction perpendicular to the flowing direction of the water body, and the cross sections of the main channel and the branch channels are gradually increased from top to bottom along the vertical direction.

Further, the cross-sectional dimension of the main channel is larger than the cross-sectional dimension of the branch channel.

Further, in the horizontal plane, the main channel and the branch channels are arranged in a crisscross manner.

Further, the top of the main channel and the top of the branch channel are both provided with exhaust holes.

Furthermore, the first flow guide structure comprises water distribution wing plates, the edges of two sides of the outlet of the branch channel are respectively provided with the water distribution wing plates, and each water distribution wing plate extends towards the direction far away from the branch channel along the horizontal direction.

Furthermore, the first flow guide structure further comprises a transverse guide plate, one end of the transverse guide plate is connected with the channel side wall of the branch channel, and the other end of the transverse guide plate extends towards the direction far away from the branch channel; the position of the transverse guide plate is higher than that of the water distribution wing plate along the height direction of the branch channel; the transverse guide plate is obliquely arranged relative to the plate surface of the water distribution wing plate, and the interval between the plate surface of the transverse guide plate and the plate surface of the water distribution wing plate is gradually increased along the water body flowing direction in the branch channel.

Further, a plurality of transverse guide plates are arranged at intervals along the length direction of the branch channel.

Further, the second flow guide structure comprises a longitudinal flow guide vortex plate which is arranged at the downstream of the transverse guide plate, and the position of the longitudinal flow guide vortex plate is not lower than that of the transverse guide plate along the height direction of the branch channel; the longitudinal flow guide vortex plate comprises an inclined part and a horizontal part, a preset included angle is formed between the inclined part and the horizontal part, the horizontal part is parallel to the water distribution wing plate, and the inclined part faces the water distribution wing plate and is suitable for guiding water to flow towards the upper area of the branch channel.

Further, the plate surface of the inclined portion is provided with a vortex hole.

Furthermore, the tail end of the main channel is of a closed structure, and an emptying pipe is arranged at the tail end of the main channel.

The invention also provides a water treatment system, which comprises the multidirectional flow suspended sludge encryption device; the multi-directional flow suspended sludge encryption device is arranged between the flocculation section and the sedimentation section of the water treatment system.

The technical scheme of the invention has the following advantages:

according to the multi-directional flow suspended sludge encryption device, water is primarily distributed through the water distribution structure, and then the first flow guide structure and the second flow guide structure guide the water, so that water distribution of the water in a space range in the horizontal direction and the vertical direction is more uniform, and in the flow guide process, a dynamic sludge suspended layer for filtering the water is formed at the downstream of the second flow guide structure, so that the separation load of a subsequent precipitation section is reduced, and the purification effect is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of a multi-directional flow suspended sludge encryption device provided in one embodiment of the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a schematic view of a multi-directional flow suspended sludge thickening apparatus provided in an embodiment of the present invention applied to a water treatment system having a circular cross-sectional shape;

FIG. 4 is a schematic view of a multi-directional flow suspended sludge thickening apparatus provided in an embodiment of the present invention applied to a water treatment system having a rectangular cross-sectional shape;

FIG. 5 is a schematic diagram of an application of a multi-directional flow suspended sludge encryption device provided in an embodiment of the present invention;

FIG. 6 is a schematic view of an application of a multi-directional flow suspended sludge encryption device provided in yet another embodiment of the present invention;

FIG. 7 is a schematic view of an application of a multi-directional flow suspended sludge encryption device provided in yet another embodiment of the present invention;

FIG. 8 is a schematic view of a water treatment system provided in one embodiment of the present invention;

FIG. 9 is a schematic structural diagram of one embodiment of a longitudinal guide vortex plate in the multi-directional flow suspended sludge thickening apparatus provided in the present invention;

FIG. 10 is a schematic structural diagram of another embodiment of a longitudinal flow guiding vortex plate in the multi-directional flow suspended sludge encryption device provided in the present invention;

FIG. 11 is a front view of another embodiment of a branch channel in the multi-directional flow suspended sludge thickening apparatus provided in the present invention;

FIG. 12 is a top view of yet another embodiment of a branch channel in a multi-flow suspended sludge thickening apparatus provided in the present invention;

FIG. 13 is a front view of another embodiment of the main channel of the multi-directional flow suspended sludge thickening apparatus provided in the present invention;

FIG. 14 is a side view of the longitudinal inducer vortex plate distribution of FIG. 13;

FIG. 15 is a top view of the longitudinal inducer vortex plate distribution of FIG. 13;

FIG. 16 is a front view of another embodiment of the main channel in the multi-directional flow suspended sludge thickening apparatus provided in the present invention;

FIG. 17 is a side view of the castellated plate of FIG. 16;

FIG. 18 is a front view of another embodiment of the main channel in the multi-flow suspended sludge thickening apparatus provided in the present invention;

FIG. 19 is a side view of the spacer of FIG. 18;

FIG. 20 is a top view of the separator plate of FIG. 18;

fig. 21 is a schematic view of the castellated plate in fig. 18.

Description of reference numerals:

1-a main channel; 2-branch channel; 3-water distribution wing plate;

4-a transverse guide plate; 5-longitudinal flow guide vortex plate; 6-air exhaust holes;

7-a horizontal portion; 8-an inclined portion; 9-vortex hole;

10-chamfering the angle plate; 11-lower layer plate; 12-sludge recovery hopper;

13-a sludge return pipe; 14-a body; 15-a coagulation section;

16-a flocculation section; 17-a transition section; 18-a precipitation section;

19-a multi-directional flow suspended sludge encryption device; 20-a baffle plate; 21-a toothed plate;

22-a separator; 23-water through hole.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

FIG. 8 is a schematic view of a water treatment system provided in one embodiment of the present invention; FIG. 3 is a schematic view of a multi-directional flow suspended sludge thickening apparatus provided in an embodiment of the present invention applied to a water treatment system having a circular cross-sectional shape; FIG. 4 is a schematic view of a multi-directional flow suspended sludge thickening apparatus provided in an embodiment of the present invention applied to a water treatment system having a rectangular cross-sectional shape; as shown in fig. 3, 4 and 8, the present embodiment provides a water treatment system, which includes a body 14, which is a horizontal tank-shaped structure, the cross section of the body 14 may be circular or rectangular, the inner space of the body 14 is divided into a coagulation section 15, a flocculation section 16 and a sedimentation section 18, a transition section 17 may be disposed between the flocculation section 16 and the sedimentation section 18, and a multi-directional flow suspended sludge encryption device 19 is disposed in the transition section 17. Or the transition section 17 is not arranged, and the multi-directional flow suspended sludge encryption device 19 is directly placed in the settling section 18 and positioned in front of the inclined pipe separator.

Wherein, this multidirectional flow suspension sludge encryption equipment 19 includes: the water distribution structure is provided with a water inlet and a water outlet; the water flowing out of the flocculation section 16 enters the water distribution structure through the water inlet, and then flows through the first flow guide structure and the second flow guide structure in sequence after flowing out of the water outlet of the water distribution structure.

The first flow guide structure is arranged at the water outlet and is suitable for guiding the water body to flow along the horizontal direction; wherein the horizontal direction refers to a direction parallel to the floor of the transition section 17.

The second flow guide structure is arranged at the downstream of the first flow guide structure, is suitable for guiding the water body to move along the vertical direction, and forms a dynamic sludge suspension layer for filtering the water body at the downstream of the second flow guide structure along the conveying direction of the water body. Wherein the vertical direction refers to the height direction of the transition section 17. The body of water in the transition section 17 flows from bottom to top, and the second flow directing structure is located above the first flow directing structure.

The multidirectional current suspension mud encryption device 19 that this embodiment provided, carry out preliminary water distribution to the water through the water distribution structure, the rethread first water conservancy diversion structure guides the water with second water conservancy diversion structure, make the water in the space range more even at horizontal direction and vertical direction water distribution, and at the in-process of water conservancy diversion, form the developments mud suspension layer that is used for filtering the water in the low reaches of second water conservancy diversion structure, reduce the separation load of follow-up precipitation section 18, be favorable to improving purifying effect.

FIG. 1 is a schematic structural diagram of a multi-directional flow suspended sludge thickening apparatus 19 according to an embodiment of the present invention; FIG. 2 is a side view of FIG. 1; as shown in fig. 1 and 2, the water distribution structure includes a main channel 1 and a branch channel 2, an inlet of the main channel 1 is a water inlet, an outlet of the main channel 1 is communicated with an inlet of the branch channel 2, and an outlet of the branch channel 2 is a water outlet.

Preferably, the main channel 1 and the branch channels 2 are arranged crosswise in the horizontal plane.

Preferably, the cross-sectional shapes of the main channel 1 and the branch channels 2 are both triangular along the direction perpendicular to the flow direction of the water body, for example, the main channel 1 may be spliced by three flat plates to form a channel with a cross-sectional shape both being triangular. Also, the end of the main channel 1 may be of a closed configuration. For example, the branch passages 2 are spliced into a passage with a triangular cross-sectional shape by two flat plates. Moreover, the end part of the branch channel 2 far away from the main channel 1 can be of a closed structure, the bottom part of the branch channel is of an open structure, and water body flows out downwards from the bottom part of the branch channel 2 after entering the branch channel 2 from the main channel 1.

For example, the cross-sectional shapes of the main channel 1 and the branch channels 2 are both equilateral triangles, and the cross-sectional sizes of the main channel 1 and the branch channels 2 gradually increase along the vertical direction from top to bottom, that is, the vertex angle of the channel with the triangular cross-sectional shape is at the top, the base is at the bottom, and the base is parallel to the bottom plate of the transition section 17.

Wherein the cross-sectional dimension of the main channel 1 is larger than the cross-sectional dimension of the branch channel 2.

Wherein, the channel top of the main channel 1 and the branch channel 2 are provided with exhaust holes 6. For example, the exhaust hole 6 may be provided near the end of the main channel 1 and the branch channel 2. For example, the channel tops of the main channel 1 and the branch channel 2 are each provided with two exhaust holes 6.

Wherein, first water conservancy diversion structure includes water distribution pterygoid lamina 3, and the export both sides edge of a passageway 2 all is provided with water distribution pterygoid lamina 3, and along the horizontal direction, every water distribution pterygoid lamina 3 all extends towards the direction of keeping away from a passageway 2. The plate surface of the water distribution wing plate 3 is parallel to the bottom plate of the transition section 17, and after the water body flows out from the branch channel 2, the water body horizontally sweeps to two sides along the interval between the water distribution wing plate 3 and the bottom plate of the transition section 17. Wherein, the length of the water distribution wing plate 3 can be designed according to the requirement.

The first flow guide structure further comprises a transverse guide plate 4, one end of the transverse guide plate 4 is connected with the channel side wall of the branch channel 2, and the other end of the transverse guide plate 4 extends towards the direction far away from the branch channel 2; the position of the transverse guide plate 4 is higher than that of the water distribution wing plate 3 along the height direction of the branch channel 2; the transverse guide plate 4 is obliquely arranged relative to the plate surface of the water distribution wing plate 3, and the interval between the plate surface of the transverse guide plate 4 and the plate surface of the water distribution wing plate 3 is gradually increased along the flowing direction of the water body in the branch channel 2. For example, a plurality of lateral guides 4 may be provided at intervals along the length of the branch passage 2.

The second flow guide structure comprises a longitudinal flow guide vortex plate 5 which is arranged at the downstream of the transverse guide plate 4, and the position of the longitudinal flow guide vortex plate 5 is not lower than that of the transverse guide plate 4 along the height direction of the branch channel 2; vertical water conservancy diversion whirl plate 5 includes rake 8 and horizontal part 7, is between rake 8 and the horizontal part 7 and predetermines the contained angle, for example, this predetermines the contained angle can be the obtuse angle, and the angle of reality can be adjusted as required, and horizontal part 7 is on a parallel with the setting of water distribution pterygoid lamina 3, and rake 8 sets up towards water distribution pterygoid lamina 3, is suitable for the guide water to flow towards the upper region of a passageway 2.

A plurality of swirl holes 9 may be provided at intervals on the plate surface of the inclined portion 8 in the longitudinal direction of the inclined portion 8.

Wherein, along the longitudinal direction, a plurality of longitudinal diversion vortex plates 5 can be arranged at intervals.

FIG. 9 is a schematic structural diagram of one embodiment of a longitudinal guide vortex plate in the multi-directional flow suspended sludge thickening apparatus provided in the present invention; as shown in fig. 9, the longitudinal diversion vortex plate 5 may also be a T-shaped plate structure, and in this case, the vortex holes 9 may be arranged on the surface of the horizontal plate of the T-shaped plate structure.

Fig. 10 is a schematic structural view of another embodiment of the longitudinal diversion vortex plate in the multi-directional flow suspended sludge encryption device provided by the invention, as shown in fig. 10, or the longitudinal diversion vortex plate 5 may also be a triangular plate-shaped structure, in which case, the vortex holes 9 may be arranged on two inclined plate surfaces of the triangular plate-shaped structure.

Wherein, the tail end of the main channel 1 is provided with an emptying pipe which can be used for emptying.

When the multi-directional flow suspended sludge encryption device 19 is used, after the water body is flocculated in the flocculation section 16, the water body firstly enters the main channel 1 and then enters the branch channel 2 under the pressure condition, and the full flow of the water body in the channel can be ensured by the exhaust holes 6 arranged at the tops of the tail ends of the branch channel 2 and the main channel 1. The sectional area of the main channel 1 is larger than that of the branch channel 2, water body flows in the branch channel 2 at an accelerated speed, and water is distributed from the lower part of the water distribution wing plate 3 in a horizontal scavenging way under the action of hydraulic thrust. After the water is distributed by horizontal scavenging, the water distribution wing plate 3 is far away from the tail end of the branch channel 2, the water body can rise, and the water body is uniformly dispersed into the space under the action of the transverse guide plate 4 because the transverse guide plate 4 is above the water distribution wing plate 3. When the water body passes through the transverse guide plate 4 and continues to rise, the water body is guided by the longitudinal flow guide vortex plate 5 to be pushed to the upper part of the branch channel 2, and the water distribution uniformity of the whole cross section in the transition section 17 is ensured.

In another embodiment, a water treatment system is further provided, which comprises the above multi-directional flow suspended sludge encryption device 19; the multi-directional flow suspended sludge encryption device 19 is arranged between the flocculation section 16 and the sedimentation section 18 of the water treatment system.

The section of coagulating 15 and the flocculation section 16 of anterior segment are the pressure storehouse, and the mud floc after the flocculation compares the mud floc of the section of coagulating 15 volume bigger, under the driving of pressure, gets into main entrance 1, causes each channel pressure and water yield difference in order to prevent the air lock, so is equipped with exhaust hole 6 at main entrance 1, 2 terminal tops of branch passageway, guarantees the equilibrium of full flow and pressure in the passageway, and then ensures the even of water distribution.

The cross-sectional area of the interval between the water distribution wing plate 3 and the bottom plate of the transition section 17 is smaller than the cross-sectional area of the main channel 1, so that the flow velocity of horizontal scavenging flow can be increased in the process of releasing water, the acceleration of the flow velocity can generate relatively low pressure, and the low-pressure drainage effect can generate rotational flow in the space. Then the water body rises to the transverse guide plate 4, the water body uniformly rises in the transition section 17 under the action of the transverse guide plate 4, and the flow direction is changed due to the action of the inclination angle of the transverse guide plate 4, so that the mixing efficiency is improved. After the water body is horizontally and uniformly arranged, the water body rises to the position of the longitudinal diversion vortex plate 5, the rising water body is guided towards the direction deviating from the water distribution wing plate 3, so that the water distribution in the vertical direction in the device is uniform, the vortex holes 9 are arranged on the inclined part 8 of the longitudinal diversion vortex plate 5, when the water body passes through the pore channels of the vortex holes 9, low pressure is generated due to acceleration of the flow velocity, then the vortex is generated through drainage, and the pore channels of the vortex holes 9 can generate a plurality of vortex areas.

The rotational flow at the positions can increase the collision probability among sludge flocs and between the sludge flocs and residual medicament, so that the sludge flocs are combined into larger and denser sludge particles. Due to the principle of cyclone separation, the particles fall due to the action of cyclone, but under the plug flow action of large-flow water, the water body in the transition section 17 rises rapidly, so that a dynamic sludge suspension layer is formed at a proper position of the transition section. Because the density and the weight of the sludge flocs are different, the thickness of the dynamic sludge suspension layer is relatively higher, the dynamic filtering effect is realized on the overflowing water body, and meanwhile, the gathering effect is realized on the small floc sludge, so that the density of the sludge is higher, the filter layer is more compact, and the filtering effect is better.

FIG. 5 is a schematic diagram of an application of a multi-directional flow suspended sludge encryption device provided in an embodiment of the present invention; as shown in fig. 5, in another embodiment, the lower edge of the branch channel 2 is divided into two layers of water distribution, a lower plate 11 is disposed between the bottom plate of the transition section 17 and the water distribution wings 3, the lower plate 11 is parallel to the water distribution wings 3, and water passing channels can be formed between the lower plate 11 and the water distribution wings 3, and between the lower plate 11 and the bottom plate of the transition section 17. Moreover, when the length of the lower plate 11 is larger than that of the water distribution wing plate 3, the water body can be conveyed to the far end through the water passage of the lower layer, and the water body can be conveyed to the near end through the water passage of the upper layer.

FIG. 6 is a schematic view of an application of a multi-directional flow suspended sludge encryption device provided in yet another embodiment of the present invention; as shown in fig. 6, in another embodiment, the number of the branch channels 2 may be increased along the length direction of the main channel 1, for example, two branch channels 2 are arranged at intervals, and the water outlet flow and principle are the same, which is not described herein again. According to different water treatment amounts, a plurality of main channels 1 or branch channels 2 can be arranged to ensure the uniform water distribution.

FIG. 7 is a schematic view of an application of a multi-directional flow suspended sludge encryption device provided in yet another embodiment of the present invention; in another embodiment, as shown in fig. 7, a sludge recovery hopper 12 along the length direction or the width direction of the tank body can be simultaneously or selectively arranged at the front end, the middle end or the rear end of the multi-directional flow suspended sludge encryption device 19 according to the amount of the treated water, and is communicated with the upstream coagulation section 15 and the upstream flocculation section 16 through a sludge return pipe 13, so that sludge flocs can be returned to the upstream coagulation section 15 and the upstream flocculation section 16 through a pump or a negative pressure principle.

In the above embodiment, the chamfer plate 10 can be arranged at the corner of the wall plate and the bottom plate of the transition section 17 to prevent sludge flocs from accumulating at dead corners. A flow guide plate can also be arranged on the wall plate of the transition section 17, so that the mixing effect is improved.

In the above embodiment, the spacing between the end of the branch channel 2 away from the main channel 1 and the wall of the transition section 17 may be zero.

FIG. 11 is a front view of another embodiment of a branch channel in the multi-directional flow suspended sludge thickening apparatus provided in the present invention; FIG. 12 is a top view of yet another embodiment of a branch channel in a multi-flow suspended sludge thickening apparatus provided in the present invention; as shown in fig. 11 and 12, in some embodiments, two obliquely arranged channel walls of the branch channel 2 may be provided with teeth for facilitating uniform water distribution, and the gap between two adjacent teeth is used for water outlet, for example, the teeth may be located at the edge of the end of the channel wall of the branch channel 2, the end of the branch channel 2 may contact with the bottom of the transition section 17, and the position of the water distribution wing plate 3 may be moved upward, and preferably, the relative height of the water distribution wing plate 3 and the tooth mouth in the height direction may be flexibly adjusted according to the amount of treated water.

FIG. 13 is a front view of another embodiment of the main channel of the multi-directional flow suspended sludge thickening apparatus provided in the present invention; FIG. 14 is a side view of the longitudinal flow directing swirler plate arrangement of FIG. 13; FIG. 15 is a top view of the longitudinal inducer vortex plate distribution of FIG. 13; as shown in fig. 13, 14 and 15, in some embodiments, the water distribution structure does not adopt the structural design of the main channel 1 and the branch channels 2, and for some devices with smaller treatment capacity, the water distribution structure may only include the main channel 1, and the upstream water body enters through the water inlet of the main channel 1 and then is directly discharged from the water outlet of the main channel 1. For example, for a water treatment device whose main body adopts a rectangular tank, a baffle plate 20 may be obliquely disposed at a bottom corner of the transition section 17 near the upstream side, and a baffle plate may be disposed at the bottom corner for facilitating flow guiding, and the baffle plate may be disposed in parallel with the baffle plate 20, and at this time, the main channel 1 is formed in an area between the baffle plate 20 and the baffle plate. Wherein, a gap is left between the tail end of the baffle plate 20 and the bottom of the transition section 17 to form a water outlet of the main channel 1. For example, a lower plate 11 may be disposed at the position of the water outlet to perform double-layer water distribution. For example, the longitudinal flow guide vortex plates 5 may be arranged above the lower plate 11, and when the longitudinal flow guide vortex plates 5 are arranged, the two adjacent longitudinal flow guide vortex plates 5 may be in a splayed or inverted splayed alternate distribution form, at this time, the water body is accelerated when passing between the two longitudinal flow guide vortex plates 5 arranged in a splayed shape, and is decelerated when passing between the two longitudinal flow guide vortex plates 5 arranged in an inverted splayed shape, which is beneficial to improving the uniformity of water distribution, and increases the mixing effect, so that the probability of collision contact gathering between sludge is higher.

FIG. 16 is a front view of another embodiment of the main channel in the multi-directional flow suspended sludge thickening apparatus provided in the present invention; FIG. 17 is a side view of the castellated plate of FIG. 16; as shown in fig. 16 and 17, for example, a castellated plate 21 may be further disposed at the water outlet of the main channel 1, teeth on the castellated plate 21 are disposed toward the bottom of the transition section 17, and a gap between two adjacent teeth may allow water to pass through, so as to achieve an effect of uniform water distribution. This application accomplishes the encryption of mud in the changeover portion, and the water distribution uniformity can make in the changeover portion, and mud makes the sludge blanket relatively stable at the in-process that rises, and water is cutting through the mud blanket process and is straining efficient higher, and the play water effect is better.

FIG. 18 is a front view of another embodiment of the main channel in the multi-flow suspended sludge thickening apparatus provided in the present invention; FIG. 19 is a side view of the spacer of FIG. 18; FIG. 20 is a top view of the separator plate of FIG. 18; FIG. 21 is a schematic view of the castellated plate of FIG. 18; as shown in fig. 18, 19, 20 and 21, in some embodiments, the main channel 1 may be formed without depending on a baffle, in which case, a plurality of water through holes 23 may be provided at the bottom of the partition 22 between the transition section 17 and the flocculation section 16, the partition 22 is connected to the upper side of the baffle 20, and the main channel 1 is formed in the region between the baffle 20 and the partition 22. The water body at the upstream enters the main channel 1 through the water through holes 23 on the partition plate 22 and then flows to the downstream from the main channel 1. At this time, for uniform water distribution, the castellated plate 21 may be disposed in the main channel 1, and the lower plate 11 is disposed at the water outlet of the main channel 1. The flow of each pore channel is balanced as much as possible under the action of a plurality of water through holes 23 and the toothed plates 21 in the flow, and the effect of uniform water distribution is achieved.

In conclusion, the multi-directional flow suspended sludge encryption device 19 in the application realizes uniform water distribution and more effectively improves mixing efficiency through the effect of the water distribution structure, the first flow guide structure and the second flow guide structure. The collision and gathering among the sludge flocs, raw water colloid and residual medicament are promoted, so that the sludge flocs have higher density and better settleability.

The multidirectional current suspension mud encryption device 19 in this application, under the combined action of cyclone's power, gravity and upflow thrust, form great developments mud suspension layer, and keep most mud to pass backward, reduce the load of the pipe chute separation of follow-up sedimentation section 18.

The multi-direction flow suspended sludge encryption device 19 has the advantages that the high-concentration sludge floc adsorption and filtration effects are realized, the turbidity of the effluent is very low, and the turbidity can be reduced to be below 0.5NTU when the effluent is used for treating water in rivers and lakes. The transparency of the water body is improved; in addition, the adsorption and filtration effects of the high-concentration sludge can reduce the usage amount of the coagulation medicament by more than 30%.

The multi-directional flow suspended sludge encryption device 19 in the application can be applied to the existing equipment; can also be applied in the conventional coagulating sedimentation process and used as an effect promoting auxiliary device at the front section of sedimentation.

It should be noted that the low pressure referred to in this application is a relative concept, and the design of each backflow point is based on the bernoulli principle, that is, the pressure at the position where the flow rate of the liquid is high is smaller than that at the position where the flow rate of the liquid is low, and the liquid is forced to backflow by the pressure difference generated between the two positions.

In this application, high density refers to sludge flocs in the water body exceeding 5g/L.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications derived therefrom are intended to be within the scope of the invention.

Claims (13)

1. The utility model provides a multidirectional flow suspension sludge encryption device which characterized in that includes:

the water distribution structure is provided with a water inlet and a water outlet;

the first flow guide structure is arranged at the water outlet and is suitable for guiding the water body to flow along the horizontal direction;

and the second flow guide structure is arranged at the downstream of the first flow guide structure, is suitable for guiding the water body to move along the vertical direction, and forms a dynamic sludge suspension layer for filtering the water body at the downstream of the second flow guide structure along the conveying direction of the water body.

2. The multi-directional flow suspended sludge thickening apparatus of claim 1,

the water distribution structure comprises a main channel and a branch channel, wherein the inlet of the main channel is the water inlet, the outlet of the main channel is communicated with the inlet of the branch channel, and the outlet of the branch channel is the water outlet.

3. The multi-directional flow suspended sludge thickening apparatus of claim 2,

the cross sections of the main channel and the branch channels are triangular along the direction perpendicular to the flowing direction of the water body, and the cross sections of the main channel and the branch channels are gradually increased from top to bottom along the vertical direction.

4. The multi-directional flow suspended sludge thickening apparatus of claim 3,

the cross-sectional dimension of the main channel is greater than the cross-sectional dimension of the branch channel.

5. The multi-directional flow suspended sludge thickening apparatus of claim 2,

in the horizontal plane, the main channel and the branch channels are arranged in a cross manner.

6. The multi-directional flow suspended sludge thickening apparatus of claim 2,

the main channel and the channel top of the branch channel are both provided with exhaust holes.

7. The multi-directional flow suspended sludge thickening apparatus of claim 3,

the first flow guide structure comprises water distribution wing plates, the edges of two sides of an outlet of the branch channel are respectively provided with the water distribution wing plates, and each water distribution wing plate extends towards the direction far away from the branch channel along the horizontal direction.

8. The multi-directional flow suspended sludge thickening apparatus of claim 7,

the first flow guide structure further comprises a transverse guide plate, one end of the transverse guide plate is connected with the side wall of the branch channel, and the other end of the transverse guide plate extends towards the direction far away from the branch channel;

the position of the transverse guide plate is higher than that of the water distribution wing plate along the height direction of the branch channel;

the transverse guide plate is obliquely arranged relative to the plate surface of the water distribution wing plate, and the interval between the plate surface of the transverse guide plate and the plate surface of the water distribution wing plate is gradually increased along the water body flowing direction in the branch channel.

9. The multi-directional flow suspended sludge thickening apparatus of claim 8,

and a plurality of transverse guide plates are arranged at intervals along the length direction of the branch channel.

10. The multi-directional flow suspended sludge thickening apparatus of claim 8,

the second flow guide structure comprises a longitudinal flow guide vortex plate which is arranged at the downstream of the transverse guide plate, and the position of the longitudinal flow guide vortex plate is not lower than that of the transverse guide plate along the height direction of the branch channel;

the longitudinal flow guide vortex plate comprises an inclined part and a horizontal part, a preset included angle is formed between the inclined part and the horizontal part, the horizontal part is parallel to the water distribution wing plate, and the inclined part faces the water distribution wing plate and is suitable for guiding water to flow towards the upper area of the branch channel.

11. The multi-directional flow suspended sludge thickening apparatus of claim 10,

and the surface of the inclined part is provided with a vortex hole.

12. The multi-directional flow suspended sludge thickening apparatus of claim 6,

the tail end of the main channel is of a closed structure, and an emptying pipe is arranged at the tail end of the main channel.

13. A water treatment system, comprising

The multi-directional flow suspended sludge thickening apparatus of any one of claims 1 to 12;

the multi-directional flow suspended sludge encryption device is arranged between the flocculation section and the sedimentation section of the water treatment system.

Images