CN215609528U - Sand-water separation equipment - Google Patents

Abstract

The utility model relates to sand-water separation equipment, which comprises a settling part for providing a settling space and a conveying part for conveying settled sand grains, wherein the settling part comprises a shell, the shell is provided with an internal settling cavity and a water inlet communicated with the internal settling cavity, the shell also comprises a water discharge control valve, the shell is also provided with a water discharge port, the water discharge port is communicated with the internal settling cavity and is positioned below the water inlet, the water discharge control valve is used for controlling the on/off of the water discharge port, and the water discharge port is used for discharging supernatant in the internal settling cavity; this sand-water separation equipment, compact structure, design benefit can adopt the operation mode work of batch formula to can effectively reduce the disturbance of water to the sediment sand grain, be particularly useful for effective settlement and the promotion separation of fine sand, can show improvement desanding efficiency.

Description

Sand-water separation equipment

Technical Field

The utility model relates to the technical field of sewage treatment equipment, in particular to sand-water separation equipment.

Background

The sewage desanding is one of the necessary treatment processes in the pretreatment link of a sewage treatment plant, and is usually arranged at the rear end of a sewage coarse grid and the front end of a biochemical pool; the conventional sand removal process mainly comprises three types, namely a advection sand setting tank, an aeration sand setting tank and a cyclone sand setting tank, wherein sand separation is realized by the principles of gravity settling, cyclone separation and the like, and then sand is discharged in a gas stripping or pump suction mode; in order to solve the problem, in the prior art, sand-water separation equipment is generally used, sand grains are further precipitated in water in a gravity settling mode, and meanwhile, the precipitated sand is gradually lifted from the water in a spiral conveying mode, so that sand-water separation is realized, the obtained sand is low in water content and can be directly transported and disposed.

The existing sand-water separation equipment generally comprises an internal settling chamber for settling sand grains, a water inlet communicated with the internal settling chamber, an overflow port communicated with the internal settling chamber and a spiral conveying device for conveying the sand grains out of the internal settling chamber, wherein the overflow port is generally arranged at a position which is as high as or slightly higher than the water inlet and is mainly used for discharging supernatant out of the internal settling chamber in an overflow mode; the existing sand-water separation equipment usually works in a continuous operation mode, namely, sewage to be treated continuously flows into an internal settling chamber from a water inlet and is settled in the internal settling chamber, meanwhile, a spiral conveying mechanism is in a continuous operation state so as to continuously convey sand grains settled at the bottom of the internal settling chamber, and meanwhile, supernatant in the internal settling chamber continuously flows out from an overflow port, so that the separation of sand and water in the sewage is realized; however, the mode that adopts continuous operation carries out the during operation, and the liquid level in the inside sedimentation chamber is higher (the liquid level can be higher than the overflow mouth usually), and the water yield is big for the water is great to the disturbance of precipitating sand grain, causes the sand grain to raise again easily (for example, the sand grain of raising is easily from the back mixing to aquatic in the screw conveyor), is particularly unfavorable for effective settlement and the promotion separation of fine sand, awaits the opportune moment and solves.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that the existing sand-water separation equipment usually works in a continuous operation mode, so that the liquid level in an internal sedimentation cavity is high, the water quantity is large, the disturbance of water to the sedimentation sand grains is large, the sand grains are easy to raise again, and the effective sedimentation and lifting separation of fine sand are particularly not facilitated, and provides the sand-water separation equipment which is compact in structure and ingenious in design, can work in a sequencing batch operation mode, can effectively reduce the disturbance of the water to the sedimentation sand grains, is particularly beneficial to the effective sedimentation and lifting separation of the fine sand, and has the main conception that:

a sand-water separating apparatus comprising a settling section for providing a settling space and a conveying section for conveying settled sand grains, the settling section comprising a housing configured with an internal settling chamber and a water inlet communicating with the internal settling chamber,

the device also comprises a water discharge control valve, the shell is also provided with a water discharge port, the water discharge port is communicated with the inner sedimentation cavity and is used for discharging supernatant in the inner sedimentation cavity,

the water outlet is positioned below the water inlet, and the water discharge control valve is used for controlling the on/off of the water outlet. In the scheme, the internal sedimentation cavity is a place for sewage sedimentation, the problem of discharging supernatant in the internal sedimentation cavity can be solved by constructing the water outlet communicated with the internal sedimentation cavity, the problem of the regular discharge of the supernatant in the internal sedimentation cavity can be solved by constructing the water discharge control valve so as to control the on/off of the water outlet by using the water discharge control valve, and the problem of the control of sedimentation time can be solved by matching the water outlet with the water discharge control valve, so that the sand-water separation equipment can work in a sequencing batch operation mode, namely, sewage enters the internal sedimentation cavity through the water inlet in the one-time operation process, at the moment, the conveying part is in a stop state, the water discharge control valve is in a closed state, when the sewage in the internal sedimentation cavity reaches a set threshold value, the water inlet is stopped, and the sewage entering the internal sedimentation cavity can be settled in the internal sedimentation cavity, in the sedimentation process, the water body in the inner sedimentation cavity does not flow and fluctuate, and the effective sedimentation of fine sand is particularly facilitated; when the set sedimentation duration is reached, the settled sand grains are positioned at the bottom of the internal sedimentation cavity, and the supernatant is positioned above the sand grains, at the moment, the drainage control valve can be controlled to be opened, so that the supernatant in the internal sedimentation cavity can be discharged out of the internal sedimentation cavity through the drainage port, the water amount in the internal sedimentation cavity is greatly reduced, and finally, the conveying part is opened to discharge the sand grains settled at the bottom of the internal sedimentation cavity out of the internal sedimentation cavity; the above-mentioned operation process of circulation execution can make this sand-water separation equipment work with the operation mode of batch formula, compares in current continuous operation mode, and this sand-water separation equipment can greatly reduced water flow or undulant to the disturbance of deposiing the sand grain, is particularly useful for effective settlement and the promotion separation of fine sand, can show improvement desanding efficiency.

In order to reduce the disturbance of the water body to the settled sand grains as much as possible, the water outlet is further constructed at a position corresponding to the lower part of the inner settling chamber. The device can discharge the supernatant in the internal settling cavity and reduce the amount of the supernatant remained in the internal settling cavity as much as possible, thereby effectively reducing the disturbance of water to the settled sand grains and enabling the sand grains (especially fine sand grains) settled at the bottom of the internal settling cavity to be smoothly and efficiently discharged through the conveying part.

In order to solve the problem of controlling the water inlet to feed water, the water inlet control device further comprises a water inlet control valve, wherein the water inlet control valve is communicated with the water inlet and is used for controlling the on/off of the water inlet. The water separation device can be matched with the drainage control valve, so that the water separation device can work in a sequencing batch operation mode.

In order to solve the problem of conveniently controlling the state of the water inlet, the water inlet control valve is a manual valve, an electric valve, a pneumatic valve or an electromagnetic valve. So as to manually control or automatically control the on/off state of the water inlet.

In order to solve the problem of conveniently controlling the state of the water outlet, the water outlet control valve is a manual valve, an electric valve, a pneumatic valve or an electromagnetic valve. So as to manually control or automatically control the on/off state of the drain opening.

In order to solve the problem that the sand-water separation equipment can work in a continuous operation mode, the shell is further provided with an overflow port communicated with the inner sedimentation cavity, and the overflow port is positioned above the water outlet. In the scheme, the overflow port is arranged, and the arrangement position of the overflow port is higher than that of the water outlet, so that the sand-water separation equipment can work in a sequencing batch operation mode, and can also work in a continuous operation mode when the water discharge control valve is in a closed state, namely, when the water discharge control valve is in the closed state, sewage to be treated can continuously flow into the inner sedimentation cavity from the water inlet and can be precipitated in the inner sedimentation cavity, meanwhile, the conveying part can be in the continuous operation state so as to continuously convey sand grains precipitated at the bottom of the inner sedimentation cavity, and meanwhile, supernatant in the inner sedimentation cavity can continuously flow out from the overflow port, thereby realizing continuous separation of sand and water in the sewage and further ensuring that the sand-water separation equipment has two working states, the universality can be remarkably improved.

Preferably, the setting height of the overflow port is consistent with or higher than that of the water inlet. The space utilization rate of the inner sedimentation cavity can be improved, and the continuous operation of the equipment can be realized in an overflow mode.

In order to prevent the sewage entering from the water inlet from directly flowing out through the overflow port, the inner sedimentation chamber is further provided with a baffle plate, the baffle plate is used for dividing the inner sedimentation chamber into a first cavity and a second cavity, and the first cavity and the second cavity are respectively communicated through the lower end of the baffle plate;

the water inlet and the overflow port are respectively positioned at two sides of the baffle and are respectively communicated with the first cavity and the second cavity. The water inlet and the overflow mouth are linked together with the first cavity and the second cavity of baffle both sides respectively promptly, and first cavity is linked together with the second cavity respectively via the lower extreme of baffle for the baffle can play the effect of manger plate, on the one hand, can prevent that the sewage that gets into from the water inlet directly flows via the overflow mouth, and on the other hand makes the circulation path of sewage more tortuous, more is favorable to the high efficiency of sand grain in the sewage to subside.

In order to prevent the supernatant from lifting the sand in the inner settling chamber in the process of flowing out of the overflow port, an overflow groove or an overflow pipe is further arranged at the position corresponding to the overflow port, and the overflow groove or the overflow pipe is communicated with the overflow port. In actual operation, the supernatant in the inner settling chamber overflows into the overflow groove or the overflow pipe, then flows into the overflow port through the overflow groove or the overflow pipe, and is finally discharged through the overflow port.

In order to solve the problems that the sewage entering from the water inlet easily causes turbulence inside the sand-water separator, reduces the sedimentation efficiency of sand grains, causes the settled sand grains to be lifted again and the like in the continuous operation process, further, a flow guide mechanism is also arranged in the first cavity and comprises a flow guide part and a flow guide surface for guiding the sewage to flow downwards,

the flow guide part comprises a flow guide plate which is obliquely arranged, the flow guide plate is positioned below the water inlet, the flow guide surface is constructed on one side of the flow guide plate and matched with the flow guide plate, and a gap is formed between the flow guide plate and the flow guide surface;

the baffle and the water inlet are respectively positioned at two ends of the guide plate. In the scheme, the sewage is drained by arranging the flow guide mechanism, so that the water flow at the water inlet can be effectively prevented from directly impacting the internally settled sand grains; specifically, the flow guide mechanism is provided with a flow guide part and a flow guide surface, wherein the flow guide part comprises an obliquely arranged flow guide plate, and the flow guide plate is positioned below the water inlet, so that the obliquely arranged flow guide plate can be matched with the baffle plate to change the flow direction of sewage, and the sewage can flow to the flow guide surface; by constructing the flow guide surface at one side of the flow guide plate and forming a gap between the flow guide plate and the flow guide surface, so that the drainage surface can be mutually matched with the guide plate and the baffle plate to form a guide channel, sewage can flow into the sewage in the internal sedimentation cavity through the guide channel and along the drainage surface, on one hand, the gap provides a space for the sewage to flow downwards, on the other hand, under the driving of the self gravity, the sewage separated from the guide plate can be flushed to the drainage surface so as to flow downwards along the drainage surface, in the process, not only the water flow of the water inlet can be prevented from directly impacting the settled sand grains inside, but also the settled sand grains can be prevented from being lifted again, and the wall attachment effect can be generated in the process of flowing downwards along the drainage surface, so that the rapid separation of sand and water in sewage is facilitated, and the sand removing efficiency is remarkably improved.

Preferably, the inclination direction of the guide plate is perpendicular to the direction of the water inlet. So that the guide plate can guide the flowing direction of the sewage to bend so as to act on the flow guide surface.

Preferably, the guide plate is a flat plate, an arc-shaped plate or a V-shaped plate.

In order to form the drainage surface, in a first scheme, the drainage surface is an inner wall surface of the shell. That is, in this aspect, the drainage surface may be an inner wall surface of the housing, which is advantageous for simplifying the structure and reducing the cost.

In a second scheme, the flow guide mechanism further comprises a flow guide component, the flow guide component is fixedly installed in the first cavity, the flow guide component comprises a flow guide plate fixedly installed on one side of the flow guide plate, and the flow guide surface is an outer wall surface on one side of the flow guide plate. That is, in this scheme, the drainage face is the outer wall surface of the drainage plate that sets up alone, can reach the purpose of drainage equally, also can produce the wall effect of attaching, is favorable to the quick separation of sand and water.

In order to solve the problem of separation of sand and water, preferably, the conveying part comprises a spiral conveying device, the spiral conveying device comprises a conveying groove and a spiral conveying mechanism arranged in the conveying groove, the lower end of the shell is connected to the conveying groove, and the internal settling cavity is communicated with the conveying groove;

the shell and/or the conveying groove are fixedly arranged on the rack, and the conveying groove is in an inclined state;

the spiral conveying mechanism is used for driving sand grains to be conveyed along the conveying groove and discharged from a discharge hole formed in the conveying groove. So that the spiral conveying device is used for outputting the settled sand grains from the inner settling cavity, and the purpose of sand-water separation is achieved.

Compared with the prior art, the sand-water separation equipment provided by the utility model has a compact structure and an ingenious design, and can work in a sequencing batch operation mode, so that the disturbance of a water body to precipitated sand can be effectively reduced, the effective sedimentation and the lifting separation of fine sand are particularly facilitated, and the sand removal efficiency can be obviously improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a front view of a sand-water separating apparatus provided in embodiment 1 of the present invention.

Fig. 2 is a schematic three-dimensional structure diagram of a sand-water separation apparatus provided in embodiment 1 of the present invention.

Fig. 3 is a partial structural schematic diagram of the sand-water separating apparatus provided in fig. 2 after a drain control valve and a water inlet control valve are provided.

Fig. 4 is a front view of a sand-water separating apparatus provided in embodiment 2 of the present invention.

Fig. 5 is a schematic three-dimensional structure diagram of a sand-water separation apparatus provided in embodiment 2 of the present invention.

Fig. 6 is a partial structural schematic view of the sand-water separating apparatus provided in fig. 5, with a top housing removed.

Fig. 7 is a partial structural schematic view of a sand-water separation apparatus provided in embodiment 3 of the present invention, with a top housing removed.

Fig. 8 is a cross-sectional view at a-a of fig. 7.

Fig. 9 is a partial sectional view of another sand-water separating apparatus provided in an embodiment of the present invention, the sectional position being identical to that of fig. 5.

Description of the drawings

The sedimentation part 100, a shell 101, an internal sedimentation cavity 102, a water inlet 103, an overflow trough 104, an overflow port 105, a water outlet 106, a guide plate 107, a flow guide plate 108, a flow guide surface 109, a gap 110, a baffle 111, a water outlet control valve 112, a water outlet pipe 113, a water outlet delivery pipe 114, a water inlet control valve 115, a water inlet pipe 116, a water inlet delivery pipe 117, a first cavity 118 and a second cavity 119

Screw conveyor 200, conveying trough 201, motor 202, helical blade 203, discharge port 204

A frame 300.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 to 3, the present embodiment provides a sand-water separating apparatus including a settling section 100 for providing a settling space, a conveying section for conveying settled sand, and a frame 300, wherein,

in the present embodiment, the settling section 100 comprises a housing 101, the housing 101 is configured with an inner settling chamber 102 and a water inlet 103 communicated with the inner settling chamber 102, as shown in fig. 2 and 3, for facilitating the connection of the water inlet delivery pipe 117, a water inlet pipe 116 is disposed at the water inlet 103, and the water inlet pipe 116 is provided with a flange for connecting the water inlet delivery pipe 117.

In this embodiment, the inner settling chamber 102 is mainly used for providing a place for settling sewage (i.e. sand-containing sewage, which will not be described further), and the shape thereof may be determined according to actual requirements, and is not illustrated here.

In this embodiment, the conveying part is a screw conveyor 200, the screw conveyor 200 includes a conveying trough 201 and a screw conveying mechanism, as shown in fig. 1-3, the lower end of the casing 101 is connected to the conveying trough 201, the inner settling chamber 102 is communicated with the conveying trough 201, the screw conveying mechanism is disposed right in the conveying trough 201, the screw conveying mechanism is mainly used for driving the sand grains settled in the inner settling chamber 102 to be conveyed along the conveying trough 201 and discharged from a discharge port 204 formed in the conveying trough 201, as shown in fig. 1 and 2, the discharge port 204 is preferably disposed at a position far away from the casing 101 so as to smoothly discharge the sand grains.

In this embodiment, the screw conveying mechanism may adopt a screw conveying mechanism commonly used in the prior art, for example, the screw conveying mechanism includes a motor 202 fixedly installed in the conveying trough 201, and a screw blade 203 adapted to the conveying trough 201 and rotatably installed in the conveying trough 201, as shown in fig. 2, the motor 202 is used for driving the screw blade 203 to rotate, so as to achieve the purpose of lifting and discharging sand particles by the rotation of the screw blade 203; the motor 202 may preferably be a reduction motor 202, and the rotation center of the helical blade 203 may be provided with or without a rotation shaft.

In this embodiment, the housing 101 and/or the conveying trough 201 may be fixedly mounted on the rack 300, so as to support the entire housing 101 and the conveying trough 201 by the rack 300 and enable the conveying trough 201 to be in an inclined state, as shown in fig. 1 and 2, the rack 300 may be an existing steel frame, and mainly plays a supporting role, as shown in fig. 1 and 2, by way of example, includes two racks 300, one of which 300 is connected to the housing 101 and is used for supporting the housing 101, and the other 300 is connected to the conveying trough 201 and is used for supporting the conveying trough 201 separately, the two racks 300 may be respectively in an H-shaped structure as shown in fig. 1 and 2, and the heights of the two racks 300 are different, so as to enable the conveying trough 201 to be in an inclined state, as shown in fig. 1, and the inclined angle may be determined according to actual requirements.

In this embodiment, the shape of the housing 101 may also be determined according to actual requirements, and as shown in fig. 1-3, preferably, the housing 101 may be a bucket-shaped structure, which is more favorable for depositing sand in the sewage into the conveying trough 201 at the bottom of the housing 101; while the water inlet 103 may be preferentially disposed at a position close to the top of the casing 101, and the orientation of the water inlet 103 may be determined according to actual requirements, in a preferred embodiment, the water inlet 103 may be configured at one end of the casing 101 and at a position corresponding to the conveying trough 201, as shown in fig. 1 and 2, so that the sewage input from the water inlet 103 may be settled in the inner settling chamber 102, and the settled sand particles are discharged from the inner settling chamber 102 via the spiral conveying mechanism, thereby achieving the purpose of sand-water separation.

The sand-water separation device further comprises a water discharge control valve 112, as shown in fig. 3, the housing 101 is further provided with a water discharge port 106, the water discharge port 106 is communicated with the inner sedimentation cavity 102, and the water discharge port 106 is mainly used for discharging the supernatant in the inner sedimentation cavity 102 without arranging an overflow port 105 for discharging the supernatant; in the present embodiment, as shown in fig. 3, the water outlet 106 is located below the water inlet 103, and the water discharge control valve 112 is mainly used for controlling the on/off of the water outlet 106; through the cooperation of the water outlet 106 and the water discharge control valve 112, the problem of periodic discharge of supernatant in the internal settling chamber 102 can be solved, and the problem of control over settling time can be solved, so that the sand-water separation equipment can work in a sequencing batch operation mode, specifically, in the one-time operation process, sewage enters the internal settling chamber 102 through the water inlet 103, at the moment, a conveying part is in a stop state, the water discharge control valve 112 is in a closed state, when the height of the sewage in the internal settling chamber 102 reaches a set threshold value, water feeding is stopped, standing is performed for a certain time, the sewage entering the internal settling chamber 102 is settled in the internal settling chamber 102, and in the settling process, a water body in the internal settling chamber 102 does not flow and fluctuate, and the effective settling of fine sand is particularly facilitated; when the set standing time is reached, the settled sand grains are positioned at the bottom of the inner settling cavity 102, and the supernatant is positioned above the sand grains, at this time, the drainage control valve 112 can be controlled to be opened, so that the supernatant in the inner settling cavity 102 can be discharged out of the inner settling cavity 102 through the drainage port 106, thereby greatly reducing the water amount in the inner settling cavity 102, at this time, the water content of the settled sand grains is lower, and finally the conveying part is opened to discharge the sand grains settled at the bottom of the inner settling cavity 102 out of the inner settling cavity 102, in the process, because the water amount in the inner settling cavity 102 is very small and the water body is in a static state, the disturbance to the settled sand grains is very small, thereby the problems of sand grains re-lifting and back mixing can be avoided as much as possible in the process of conveying the sand grains by the conveying part, and the lifting and separation of fine sand are particularly facilitated, the above operation process is circularly executed, so that the sand-water separation equipment can work in a sequence batch type operation mode, compared with the existing continuous operation mode, the sand-water separation equipment can greatly reduce the disturbance of water body flow or fluctuation to precipitated sand grains, is particularly favorable for effective sedimentation and lifting separation of fine sand, and can obviously improve the sand removal efficiency.

As shown in fig. 2 and 3, in order to facilitate water drainage, a drain pipe 113 is disposed at the drain port 106, and the drain pipe 113 is provided with a flange for connecting with a drain delivery pipe 114; for example, the drain control valve 112 may be installed in the drain pipe 113, and may be installed in a drain delivery pipe 114 communicated with the drain pipe 113, in an embodiment, the drain control valve 112 may be manually opened and closed by a human, in this case, the drain control valve 112 may be a manual valve commonly used in the art, and in addition, the drain control valve 112 may be automatically opened and closed by a controller (such as a single chip, a PLC, or the like), in this case, the drain control valve 112 may be an electric valve, a pneumatic valve, an electromagnetic valve, or the like, so as to automatically control the on/off state of the drain opening 106 by the controller.

In the present embodiment, the drainage port 106 is preferably configured at a position corresponding to the lower portion of the inner settling chamber 102, as shown in fig. 1 and fig. 2, so that the supernatant in the inner settling chamber 102 can be drained, and the amount of the supernatant remained in the inner settling chamber 102 can be reduced as much as possible, thereby effectively reducing the disturbance of the water body to the settled sand, so that the sand (especially, fine sand) settled at the bottom of the inner settling chamber 102 can be smoothly and efficiently drained via the conveying part; in practical implementation, the height of the drain opening 106 can be determined according to the amount of the inlet water and the sand content in the sewage, and it is only necessary to make the height of the drain opening 106 higher than the thickness of the sand settled at the bottom of the inner settling chamber 102.

In order to facilitate the control of the water inlet 103 for water supply, in a further aspect, the sand-water separating apparatus further comprises a water inlet control valve 115, as shown in fig. 3, wherein the water inlet control valve 115 is communicated with the water inlet 103 and is used for controlling the on/off of the water inlet 103. So as to control the water supply to the inner sedimentation cavity, not only can solve the problem of effectively controlling the water quantity in the inner sedimentation cavity 102, but also can be matched with the water discharge control valve 112, so that the water separation equipment can work in a sequencing batch operation mode.

For example, the water inlet control valve 115 may be installed on the water inlet pipe 116, as shown in fig. 3, or may be installed on a water inlet delivery pipe 117 communicated with the water inlet pipe 116, in an embodiment, the water inlet control valve 115 may be manually opened and closed by a human, in this case, the water inlet control valve 115 may be a manual valve commonly used in the art, and in addition, the water inlet control valve 115 may be automatically opened and closed by a controller (e.g., a single chip microcomputer, a PLC, or the like), in this case, the water inlet control valve 115 may be an electric valve, a pneumatic valve, an electromagnetic valve, or the like, so that the on/off state of the water inlet 103 is automatically controlled by the controller.

Example 2

In order to solve the problem that the sand-water separation device can work in a continuous operation manner, the main difference between the present embodiment 2 and the above embodiment 1 is that in the sand-water separation device provided by the present embodiment, the housing 101 is further configured with an overflow port 105 communicated with the inner settling chamber 102, and the overflow port 105 is located above the water discharge port 106; as shown in fig. 4-5, the height of the overflow port 105 may be equal to the height of the water inlet 103 or higher than the height of the water inlet 103, so as to improve the space utilization of the inner settling chamber 102 and to realize the continuous operation of the equipment in an overflow manner.

In this embodiment, by providing the overflow port 105 and making the position of the overflow port 105 higher than the position of the drain port 106, not only the sand-water separating apparatus can operate in a sequencing batch mode, but also the sand-water separating apparatus can operate in a continuous mode when the drain control valve 112 is in the closed state, that is, when the drain control valve 112 is in the closed state, the sewage to be treated can continuously flow into the inner settling chamber 102 from the water inlet 103 and settle in the inner settling chamber 102, and meanwhile, the conveying part can be in the continuous mode to continuously convey the sand grains settled at the bottom of the inner settling chamber 102, and meanwhile, the supernatant in the inner settling chamber 102 can continuously flow out from the overflow port 105, thereby realizing the continuous separation of sand and water in the sewage, and thus the sand-water separating apparatus has two operating states, the universality can be remarkably improved.

In order to prevent the sewage entering from the water inlet 103 from directly flowing out through the overflow port 105, in a further aspect, the inner settling chamber 102 is further provided with a baffle 111, the baffle 111 is used for dividing the inner settling chamber 102 into a first cavity 118 and a second cavity 119, as shown in fig. 6, and the first cavity 118 and the second cavity 119 are respectively communicated through the lower end of the baffle 111;

as shown in fig. 6, the water inlet 103 and the overflow opening 105 are respectively located on two sides of the baffle 111 and respectively communicate with the first cavity 118 and the second cavity 119, that is, the water inlet 103 and the overflow opening 105 respectively communicate with the first cavity 118 and the second cavity 119 on two sides of the baffle 111, and the first cavity 118 and the second cavity 119 respectively communicate with the lower end of the baffle 111, so that the baffle 111 can play a role of water retaining, on one hand, sewage entering from the water inlet 103 can be prevented from directly flowing out through the overflow opening 105, and on the other hand, the flow path of the sewage is more tortuous, which is more beneficial to the efficient sedimentation of sand particles in the sewage.

In order to prevent the supernatant from lifting the sand in the inner settling chamber 102 during the process of flowing out from the overflow port 105, in a further scheme, an overflow tank 104 or an overflow pipe is further disposed at a position corresponding to the overflow port 105, and the overflow tank 104 or the overflow pipe is communicated with the overflow port 105, as shown in fig. 6, in actual operation, the supernatant in the inner settling chamber 102 overflows into the overflow tank 104 or the overflow pipe, then flows into the overflow port 105 through the overflow tank 104 or the overflow pipe, and finally is discharged through the overflow port 105.

As an example, the baffle 111 may be fixed to a bracket, which may be fixedly installed to the housing 101 as shown in fig. 6, and the height of the upper end of the baffle 111 is higher than the height of the top of the overflow gutter 104 or the overflow pipe.

Example 3

In order to solve the problems that the sewage entering from the water inlet 103 during the continuous operation easily causes turbulence inside the sand-water separator, reduces the sedimentation efficiency of sand grains, causes the settled sand grains to be lifted again, and the like, the main difference between the embodiment 3 and the above embodiment 2 is that in the sand-water separator provided by the embodiment, a flow guide mechanism is further arranged in the first cavity 118, the flow guide mechanism comprises a flow guide part and a flow guide surface 109 for guiding the sewage to flow downwards, wherein,

the flow guide part comprises a flow guide plate 107 which is obliquely arranged, as shown in fig. 7-9, the flow guide plate 107 is positioned below the water inlet 103, the flow guide surface 109 is configured on one side of the flow guide plate 107 and is matched with the flow guide plate 107, and a gap 110 is formed between the flow guide plate 107 and the flow guide surface 109;

as shown in fig. 7, the baffle 111 and the water inlet 103 are respectively located at two ends of the flow guide plate 107.

In the embodiment, the sewage is drained by arranging the flow guide mechanism, so that the water flow of the water inlet 103 can be effectively prevented from directly impacting the internally settled sand grains; specifically, the flow guiding mechanism is configured with a flow guiding part and a flow guiding surface 109, the flow guiding part comprises an inclined flow guiding plate 107, and the flow guiding plate 107 is positioned below the water inlet 103, so that the inclined flow guiding plate 107 can be matched with a baffle 111 for changing the flow direction of the sewage, and the sewage can flow to the flow guiding surface 109; by configuring the flow guide surface 109 at one side of the flow guide plate 107 and providing a gap 110 between the flow guide plate 107 and the flow guide surface 109, the flow guide surface 109 can cooperate with the flow guide plate 107 and the baffle 111 to form a flow guide channel, so that the sewage can be gathered into the sewage in the inner settling chamber 102 through the flow guide channel and down along the flow guide surface 109, on one hand, the gap 110 is configured to provide a space for the sewage to flow downward, and on the other hand, the sewage separated from the flow guide plate 107 can be flushed toward the flow guide surface 109 under the driving of the self gravity, so as to flow downward along the flow guide surface 109, in the process, not only the water flow of the water inlet 103 can be prevented from directly impacting the inner settled sand grains, the settled sand grains can be prevented from being lifted again, but also a wall attachment effect can be generated in the process of flowing downward along the flow guide surface 109, thereby facilitating the rapid separation of sand and water in the sewage, thereby being beneficial to obviously improving the desanding efficiency.

In practical implementation, the size of the gap 110 is related to the actual sewage flow, and of course, if the sewage flow is small and the gap 110 is large, the sewage can not flow along the drainage surface 109 after leaving the guide plate 107, so that the drainage purpose can not be achieved, therefore, in practical assembly, the size of the gap 110 needs to be reasonably set according to the treated water amount.

In a preferred embodiment, as shown in fig. 7 to 9, the flow guide plate 107 may be a flat plate (including a metal plate) or an arc plate, as shown in fig. 8, and the inclination angle of the flow guide plate 107 may be determined according to actual requirements, generally, the larger the inclination angle is, the larger the gap 110 between the flow guide plate 107 and the drainage surface 109 is, the larger the sewage flow can pass through, the higher the sewage treatment efficiency is, and the smaller the gap 110 between the flow guide plate 107 and the drainage surface 109 is, the smaller the sewage flow can pass through, and the smaller the sewage flow can be applied to the situation where the sewage amount is larger; in addition, the guide plate 107 may adopt a V-shaped plate, and under the action of the guide plate 107, the sewage may be separated from the middle to both sides, so that the guide plate 107 also has a flow dividing function, at this time, both sides of the guide plate 107 have the flow guide surfaces 109, as shown in fig. 8, and the two flow guide surfaces 109 may be simultaneously matched with the guide plate 107.

In order to improve the stability of the guide plate 107, the guide plate 107 can be arranged on a support frame, the support frame is arranged on the shell 101, the support frame can be a frame built by sectional materials, and only the guide plate 107 can be stably supported; the number of the flow guide plates 107 can be one or two, when two flow guide plates 107 are provided, the two flow guide plates 107 can be preferably arranged in a symmetrical manner, as shown in fig. 7 and 8, the effect at this time is the same as that of the V-shaped plate, and the description is omitted here.

In a preferred embodiment, the inclination direction of the baffle plate 107 can be perpendicular to the direction of the water inlet 103, as shown in fig. 8, so that the cooperation of the baffle plate 107 and the baffle plate 111 can guide the flowing direction of the sewage to bend 90 degrees, so as to act on the diversion surface 109 at the side of the baffle plate 107 to prevent the sewage from directly impacting the sand grains settled in the inner settling chamber 102.

In order to form the diversion surface 109, there are various embodiments, for example, there is a gap 110 between the diversion component and the inner wall surface of the casing 101, as shown in fig. 7-9, at this time, the diversion surface 109 is the inner wall surface of the casing 101, that is, the inner wall surface of the casing 101 is also a part of the diversion mechanism, and the internal structure of the whole sand-water separation equipment is simpler by adopting the structural design; particularly, in actual operation, the sewage can flow to the inner wall surface of the shell 101 under the guiding action of the guide plate 107 and flow downwards along the inner wall surface of the shell 101, so that the sewage does not impact sand grains deposited below, a wall attachment effect can be generated, and the quick separation of the sand and the water is facilitated.

Of course, the drainage surface 109 may not be the inner wall surface of the shell 101, for example, in another embodiment, the drainage mechanism further includes a drainage component, the drainage component is fixedly installed in the inner sedimentation chamber 102, the drainage component includes a drainage plate 108 fixedly installed on one side of the drainage plate 107, as shown in fig. 9, the lower end of the drainage plate 108 may extend to the bottom of the shell 101, in this case, the drainage surface 109 is the outer wall surface on one side of the drainage plate 108, the gap 110 is the gap 110 between the drainage plate 107 and the drainage plate 108, the drainage plate 108 may be installed in the inner sedimentation chamber 102 vertically or obliquely, and likewise, in actual operation, sewage may flow to the drainage plate 108 under the guiding action of the drainage plate 107 and flow downwards along the outer wall of the drainage plate 108 without impacting on the sand grains sedimented below, but also can generate a wall attachment effect, and is beneficial to the quick separation of sand and water.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.

Claims (10)

1. A sand-water separating apparatus comprising a settling section for providing a settling space and a conveying section for conveying settled sand grains, the settling section comprising a casing configured with an internal settling chamber and a water inlet communicating with the internal settling chamber, characterised in that,

the water outlet is communicated with the inner sedimentation cavity and is positioned below the water inlet, the water outlet control valve is used for controlling the on/off of the water outlet, and the water outlet is used for discharging supernatant in the inner sedimentation cavity.

2. The sand-water separation apparatus of claim 1 wherein the drain port is configured at a location corresponding to a lower portion of the internal settling chamber.

3. The sand-water separating apparatus according to claim 1, further comprising a water inlet control valve communicating with the water inlet for controlling on/off of the water inlet.

4. The sand-water separating apparatus according to claim 3, wherein the water inlet control valve is a manual valve, an electric valve, a pneumatic valve or an electromagnetic valve;

and/or the drainage control valve is a manual valve, an electric valve, a pneumatic valve or an electromagnetic valve.

5. The sand-water separation apparatus of any one of claims 1 to 4 wherein the housing is further configured with an overflow port in communication with the internal settling chamber, the overflow port being located above the drain port.

6. The sand-water separation device according to claim 5, wherein the overflow port is arranged at a height which is consistent with or higher than that of the water inlet;

and/or an overflow groove or an overflow pipe is also arranged at the position corresponding to the overflow port, and the overflow groove or the overflow pipe is communicated with the overflow port.

7. The sand-water separation equipment as claimed in claim 5, wherein the inner settling chamber is further provided with a baffle plate, the baffle plate is used for dividing the inner settling chamber into a first cavity and a second cavity, and the first cavity and the second cavity are respectively communicated through the lower end of the baffle plate;

the water inlet and the overflow port are respectively positioned at two sides of the baffle and are respectively communicated with the first cavity and the second cavity.

8. The sand-water separation device of claim 7, wherein a flow guide mechanism is further arranged in the first cavity, the flow guide mechanism comprises a flow guide part and a flow guide surface for guiding sewage to flow downwards,

the flow guide part comprises a flow guide plate which is obliquely arranged, the flow guide plate is positioned below the water inlet, the flow guide surface is constructed on one side of the flow guide plate and matched with the flow guide plate, and a gap is formed between the flow guide plate and the flow guide surface;

the baffle and the water inlet are respectively positioned at two ends of the guide plate.

9. The sand-water separation apparatus of claim 8 wherein the deflector has a direction of inclination perpendicular to the direction of the inlet;

and/or the guide plate is a flat plate, an arc-shaped plate or a V-shaped plate;

and/or the drainage surface is the inner wall surface of the shell, or the drainage mechanism further comprises a drainage component, the drainage component is fixedly installed in the first cavity and comprises a drainage plate fixedly installed on one side of the drainage plate, and the drainage surface is the outer wall surface on one side of the drainage plate.

10. The sand-water separation equipment as claimed in any one of claims 1 to 4, wherein the conveying part comprises a screw conveyer, the screw conveyer comprises a conveying trough and a screw conveying mechanism arranged in the conveying trough, the lower end of the shell is connected to the conveying trough, and the inner settling chamber is communicated with the conveying trough;

the shell and/or the conveying groove are fixedly arranged on the rack, and the conveying groove is in an inclined state;

the spiral conveying mechanism is used for driving sand grains to be conveyed along the conveying groove and discharged from a discharge hole formed in the conveying groove.

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