Precipitation device for sewage treatment

Abstract

The utility model relates to a precipitation device for sewage treatment, which comprises a vertical cylinder, a conical cylinder communicated with the lower part of the vertical cylinder, and a distribution plate connected between the vertical cylinder and the conical cylinder, a baffle plate connected with the distribution plate is arranged in the vertical cylinder, and a temporary storage chamber is communicated with the side of the interior of the vertical cylinder. The center of the vertical cylinder is provided with a core pipe which penetrates through the distribution plate and is communicated with the conical cylinder, the lower end of the core pipe is connected with a flow guide cover and a reflecting plate, the side of the conical cylinder is connected with a water inlet pipe which penetrates through the core pipe and is communicated with the core pipe, the lower portion of the conical cylinder is communicated with a conveying pipe, and the center of the conveying pipe is movably connected with an auger blade; a power mechanism used for driving the auger blades to rotate is connected to the side of the conveying pipe, and the lower portion of the conveying pipe communicates with a slag discharging pipe. According to the device, the flowing mileage of sewage is effectively increased, solid particles or suspended solids contained in the sewage can be conveniently precipitated, the suspended solids can be conveniently and automatically transported out, the sludge blockage condition is avoided, and the precipitation continuity of the suspended solids and the pollution discharge transportation efficiency are ensured.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment, in particular to a sedimentation device for sewage treatment. Background Art

[0002] A sedimentation tank is a common sewage treatment device, mainly used for the sedimentation of sewage suspended matter and having the function of purifying water quality. Currently, existing sedimentation tanks generally use a conventional water tank to statically place sewage for sewage sedimentation. However, the huge floor area of the water tank not only results in low land utilization rate and increased land use cost, but also makes it difficult to clean the inside of the water tank after a long time of sedimentation treatment, with high cleaning cost, which is not conducive to the continuous sedimentation and filtration of sewage. Especially for the sludge generated after the sewage sedimentation in the water tank, producers need to use a scraper to scrape it at the bottom of the water tank, which is not only time-consuming and laborious, but also requires stopping the use of the water tank to facilitate the scraping of sedimented sludge, affecting the utilization of the water tank. And if the sludge is scraped during the normal sewage flow in the water tank, it is very easy to re-disperse the sedimented sludge, affecting the sewage static sedimentation effect and the water quality purification of sewage. Summary of the Utility Model

[0003] The utility model mainly solves the technical problems existing in the prior art, and thus provides a sedimentation device for sewage treatment, which can effectively reduce the space occupancy rate, facilitate the removal and transportation of sludge, and improve the sewage purification treatment efficiency.

[0004] The utility model is a sedimentation device for sewage treatment, which includes a vertical cylinder, a conical cylinder connected below the vertical cylinder, and a distribution plate connected between the vertical cylinder and the conical cylinder. A baffle plate connected to the distribution plate is arranged inside the vertical cylinder. A temporary storage chamber is communicated with the side of the inside of the vertical cylinder. A core pipe passing through the distribution plate and communicating with the conical cylinder is arranged in the center of the vertical cylinder, and a flow guide cover and a reflection plate are connected to the lower end of the core pipe. A water inlet pipe passing through the core pipe and communicating with the core pipe is connected to the side of the conical cylinder. A transportation pipe is communicated with the lower part of the conical cylinder. An auger blade is movably connected to the center of the transportation pipe. A power mechanism for driving the auger blade to rotate is connected to the side of the transportation pipe. A slag discharge pipe is communicated with the lower part of the transportation pipe. Filter stones are arranged at the upper end of the baffle plate, and downward guiding holes are arranged on the outer surface of the baffle plate.

[0005] Preferably, the baffle is a spiral baffle. A chamber cavity for placing a temporary storage chamber is arranged on the side of the baffle. A vertical rod is connected through the center of the baffle. A positioning plate that cooperates with a vertical cylinder is connected above the baffle. Both ends of the vertical rod are respectively connected to the positioning plate and the distribution plate. The positioning plate and the distribution plate can be the mesh plates of a filter screen, so that the baffle can be fixedly installed inside the vertical cylinder through the distribution plate and the positioning plate, and the firmness of the baffle after connection and installation is increased through the vertical rod. The setting of the spiral baffle increases the flow path of the sewage, so that the sewage can settle the sludge during the flowing process through the baffle. A support block is connected to the inner surface of the vertical cylinder. The positioning plate is installed and placed above the support block, or the positioning plate is directly welded and fixed to the inner surface of the vertical cylinder.

[0006] Preferably, an overflow port communicating with the vertical cylinder is arranged above the side of the temporary storage chamber, and the overflow port is located above the positioning plate. An outlet cavity is arranged outside the temporary storage chamber, and a drain pipe is communicated with the outside of the outlet cavity. The drain pipe is located below the overflow port, so that the sewage enters the temporary storage chamber through the overflow port after passing through the baffle, and is introduced into the drain pipe through the outlet cavity of the temporary storage chamber and flows out. The height difference between the drain pipe and the overflow port facilitates the flow of the sewage.

[0007] Preferably, a cleaning pipe is communicated with the lower side outside the temporary storage chamber. A guide plate inclined towards the cleaning pipe is connected to the lower surface of the temporary storage chamber. Two or more blocking plates inclined towards the guide plate are connected to both sides of the inner surface of the temporary storage chamber. The blocking plates are arranged in a staggered manner, so that the sludge that may precipitate in the sewage in the temporary storage chamber can be settled on the guide plate through the blocking plates, and is discharged regularly through the cleaning pipe through the guiding of the inclined guide plate.

[0008] Preferably, an exhaust pipe and a cleaning pipe are connected above the vertical cylinder. The exhaust pipe is located on one side of the filter stones and is communicated with the inside of the vertical cylinder. The cleaning pipe is located on one side of the temporary storage chamber and is communicated with the temporary storage chamber. The filter stones are placed on the positioning plate to press and fix the baffle by gravity, and the filtering effect of the sewage is increased through the filter stones. At the same time, the setting of the exhaust pipe can discharge the gas that may be generated during the flowing process of the sewage, and the setting of the cleaning pipe facilitates directly introducing water into the temporary storage chamber to clean the temporary storage chamber.

[0009] Preferably, one end of the core pipe penetrates through the upper surface of the vertical cylinder and is detachably connected with a valve cover. The flow guide cover connected to the lower end of the core pipe is located inside the conical cylinder. The water inlet pipe penetrates through the upper side of one end of the core pipe and is communicated with a spray hole. An included angle a is provided between the axis of the water inlet pipe and the axis of the core pipe. The range of the included angle a is between 10 degrees and 15 degrees. The upper end port of the core pipe is sealed by the valve cover, so that the sewage flows out through the flow guide cover at the lower end of the core pipe again after passing through the core pipe. At the same time, the inclined design of the spray hole facilitates the sewage to be sprayed onto the inner wall of the core pipe, so that some solid particles or sludge in the sewage can fall along the inner wall of the core pipe into the conical cylinder.

[0010] Preferably, the side of the flow guide cover facing the wall of the conical cylinder is inclined, and a reflector is connected below the flow guide cover. A slag chamber communicated with the transport pipe is arranged below the conical cylinder. The inclined flow guide cover avoids the sewage directly flushing the sludge deposited below the conical cylinder. At the same time, the sewage sprayed out by the flow guide cover is sprayed and flows into the vertical cylinder through the reflector.

[0011] Preferably, flanges are connected to the lower part of the vertical cylinder and the upper part of the conical cylinder, and screw holes for bolt fixation are arranged in the center of the flanges. A rubber pad is connected to the outer side of the distribution plate and is located between the lower flange of the vertical cylinder and the lower flange of the conical cylinder. A bracket for fixing the power mechanism and the transport pipe is connected to the outer surface of the conical cylinder. Supporting feet are connected to the lower part of the conical cylinder, so that the vertical cylinder and the conical cylinder are connected and fixed by bolts penetrating through the flanges, and the airtightness and firmness are increased by the rubber pads on the outer side of the distribution plate between the two mutually attached flanges.

[0012] The beneficial effects of the present utility model are as follows: Since the spray hole at one end of the water inlet pipe penetrates through the conical cylinder and is located inside the core pipe, a reflector is connected to the lower end of the core pipe, a baffle plate is arranged inside the vertical cylinder, the drain pipe is communicated with the vertical cylinder through the temporary storage chamber, and filter stones are arranged above the baffle plate, the sewage can be first sprayed onto the pipe wall of the core pipe for preliminary filtration of large particles, and then flows into the vertical cylinder through the distribution plate and the baffle plate, increasing the flow path of the sewage to increase the sedimentation effect of suspended matters. The spiral baffle plate enables the sedimented and consolidated suspended matters to fall along the walls of the vertical cylinder and the conical cylinder into the conical cylinder through the downward guide holes to ensure the consolidation and sedimentation effect of the suspended matters in the sewage. Then, the sewage passes through the filter stones for full filtration and screening and flows into the temporary storage chamber and is discharged through the drain pipe, effectively improving the sedimentation and purification effect of the sewage, changing the large-area land occupation required for the conventional sewage sedimentation in a water tank, effectively improving the land utilization rate, and ensuring the sewage sedimentation effect. At the same time, the suspended matters after sewage sedimentation can be automatically accumulated in the slag chamber communicated with the transport pipe below the conical cylinder, so that the suspended matters can be automatically transported to the slag discharge pipe by the auger blades in the transport pipe for discharge, facilitating the producer to remove and transport the suspended matters, and thus effectively improving the sewage purification treatment efficiency and convenience. Description of the Drawings

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a schematic diagram of the overall structure of a sedimentation device for sewage treatment according to the present invention;

[0015] Figure 2 It is a schematic diagram of the connection structure of the baffle plate in a sedimentation device for sewage treatment according to the present invention. Specific embodiments

[0016] The following will elaborate on the preferred embodiments of the present invention in conjunction with the drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0017] As Figure 1 And Figure 2 shown, a sedimentation device for sewage treatment includes a vertical cylinder 1, a conical cylinder 2 connected below the vertical cylinder 1, and a distribution plate 211 connected between the vertical cylinder 1 and the conical cylinder 2. A baffle plate 5 connected to the distribution plate 211 is arranged inside the vertical cylinder 1. A temporary storage chamber 3 is connected to the side inside the vertical cylinder 1. A core pipe 4 passing through the distribution plate 211 and communicating with the conical cylinder 2 is arranged in the center of the vertical cylinder 1. The lower end of the core pipe 4 is connected with a flow guide cover 42 and a reflection plate 44. A water inlet pipe 41 passing through the core pipe 4 and communicating with the core pipe 4 is connected to the side of the conical cylinder 2. A transportation pipe 6 is connected below the conical cylinder 2. A screw blade 62 is movably connected to the center of the transportation pipe 6. A power mechanism 64 for driving the screw blade 62 to rotate is connected to the side of the transportation pipe 6. A slag discharge pipe 63 is connected below the transportation pipe 6. Filter stones 13 are arranged at the upper end of the baffle plate 5, and downward guide holes 51 are arranged on the outer surface of the baffle plate 5.

[0018] The baffle plate 5 is a spiral baffle plate. A chamber cavity 53 for placing the temporary storage chamber 3 is arranged on the side of the baffle plate 5. A vertical rod 52 is connected through the center of the baffle plate 5. A positioning plate 141 that cooperates with the vertical cylinder 1 is connected above the baffle plate 5. The two ends of the vertical rod 52 are respectively connected to the positioning plate 141 and the distribution plate 211. The positioning plate 141 and the distribution plate 211 can be the mesh plates of a filter screen, so that the baffle plate 5 can be fixedly installed inside the vertical cylinder 1 through the distribution plate 211 and the positioning plate 141, and the firmness of the baffle plate 5 after connection and installation is increased through the vertical rod 52. The setting of the spiral baffle plate increases the travel of the sewage flow, so that the sewage can settle the sludge during the flow through the baffle plate 5. A support block 14 is connected to the inner surface of the vertical cylinder 1. The positioning plate 141 is installed and placed above the support block, or the positioning plate is directly welded and fixed to the inner surface of the vertical cylinder.

[0019] An overflow port 36 communicating with the vertical cylinder 1 is arranged above the side of the temporary storage chamber 3, and the overflow port 36 is located above the positioning plate 141. An outlet chamber 32 is arranged outside the temporary storage chamber 3, and a drain pipe 31 is communicated with the outside of the outlet chamber 32. The drain pipe 31 is located below the overflow port 36, so that the sewage enters the temporary storage chamber 3 through the overflow port 36 after passing through the baffle plate 5, and is introduced into the drain pipe 31 through the outlet chamber 32 of the temporary storage chamber 3 and flows out. The height difference between the drain pipe 31 and the overflow port 36 facilitates the flow of the sewage.

[0020] A sewage cleaning pipe 35 is communicated with the lower part outside the temporary storage chamber 3. A guide plate 34 inclined towards the sewage cleaning pipe 35 is connected to the lower surface of the temporary storage chamber 3. Two or more blocking plates 33 inclined towards the guide plate 34 are connected to both sides of the inner surface of the temporary storage chamber 3. The blocking plates 33 are arranged in a staggered manner, so that the sludge that may precipitate in the sewage in the temporary storage chamber 3 can be settled on the guide plate 34 through the blocking plates 33, and is discharged regularly through the sewage cleaning pipe 35 under the guidance of the inclined guide plate 34.

[0021] An exhaust pipe 12 and a cleaning pipe 11 are connected above the vertical cylinder 1. The exhaust pipe 12 is located on one side of the filter stones 13 and is communicated with the inside of the vertical cylinder 1. The cleaning pipe 11 is located on one side of the temporary storage chamber 3 and is communicated with the temporary storage chamber 3. The filter stones 13 are placed on the positioning plate 141 to press and fix the baffle plate 5 by gravity, and the filtering effect of the sewage is increased through the filter stones 13. At the same time, the setting of the exhaust pipe 12 can discharge the gas that may be generated during the sewage flow, and the setting of the cleaning pipe 11 facilitates directly introducing water into the temporary storage chamber 3 to clean the temporary storage chamber 3.

[0022] One end of the core pipe 4 penetrates through the upper surface of the vertical cylinder 1 and is detachably connected with a valve cover 15. The flow guide cover 42 connected to the lower end of the core pipe 4 is located inside the conical cylinder 2. The water inlet pipe 41 penetrates through the upper side of one end of the core pipe 4 and is communicated with a spray hole 411. An included angle a is provided between the axis of the water inlet pipe 41 and the axis of the core pipe 4. The range of the included angle a is between 10 degrees and 15 degrees. The upper end port of the core pipe 4 is sealed through the valve cover 15, so that the sewage flows through the core pipe 4 and then flows out again through the flow guide cover 42 at the lower end of the core pipe 4. At the same time, the inclined design of the spray hole 411 facilitates the sewage to be sprayed onto the inner wall of the core pipe 4, so that some solid particles or sludge in the sewage can fall along the inner wall of the core pipe 4 into the conical cylinder 2.

[0023] The flow guide cover 42 is inclined towards the side of the wall of the conical cylinder 2, and a reflector 44 is connected below the flow guide cover 42. A slag cavity 22 communicated with the transport pipe 6 is arranged below the conical cylinder 2. The inclined flow guide cover 42 is used to prevent the sewage from directly flushing the sludge deposited below the conical cylinder 2. At the same time, the sewage sprayed out by the flow guide cover 42 is sprayed and flows into the vertical cylinder through the reflector 44.

[0024] Flanges 21 are connected to the lower part of the vertical cylinder 1 and the upper part of the conical cylinder 2, and screw holes (not marked) for bolt fixation are arranged at the centers of the flanges 21. A rubber pad 212 is connected to the outside of the distribution plate 211 and is located between the lower flange 21 of the vertical cylinder 1 and the lower flange 21 of the conical cylinder 2. A bracket 65 for fixing the power mechanism 64 and the transport pipe 6 is connected to the outer surface of the conical cylinder 2. Legs (not marked) are connected to the lower part of the conical cylinder 2, so that the vertical cylinder 1 and the conical cylinder 2 are connected and fixed by bolts passing through the flanges 21, and the airtightness and firmness are increased by the rubber pad 212 on the outside of the distribution plate 211 between the two mutually attached flanges 21.

[0025] The sedimentation device for sewage treatment allows sewage to enter through the water inlet pipe 41 and is sprayed into the core tube 4 through the injection hole 411. The injection hole 411 is located on the upper side of one end of the water inlet pipe 41, allowing the sewage to be sprayed onto the inner wall of the core tube 4, so that a part of the solid particles in the sewage can directly fall into the cone tube 2 along the inner wall of the core tube 4; then the sewage is sprayed to the side of the cone tube 2 through the reflection plate 44 connected to the end of the core tube 4, and passes through the distribution plate 211 along the cone tube 2 into the vertical cylinder 1, one side of the reflection plate 44 is connected to the guide cover 42, and the other side of the reflection plate 44 is connected to the guide cover 42 through a connecting rod 43, and the reflection plate 44 is located above the slag chamber 22 and inclined toward the inner wall of the cone tube 2; so that the sewage flows through the baffle plate 5 connected above the distribution plate 211 and enters the filter stone 13, and a part of the suspended matter in the sewage can flow through the long distance of the baffle plate 5 and condense with each other, and at the same time, the centrifugal force generated by the flow of the sewage along the spiral baffle The effect is to allow the condensed suspended matter to fall back into the cone 2 through the guide hole 51; then the sewage after condensation and sedimentation purification enters the filter stone 13 for re-filtration, and the filtered sewage flows into the temporary storage chamber 3 through the overflow port 36, and after storage and final sedimentation in the temporary storage chamber 3, enters the water outlet cavity 32 and is discharged through the drain pipe 31; and the settled suspended matter falls into the slag cavity 22 below the cone 2 and contacts with the auger blade 62 located in the transport pipe 6, and then the power mechanism 64 drives the rotation of the auger blade 62 to drive the transportation and movement of the sediment, and after the slag discharge pipe 63 is opened, the sediment in the transport pipe 6 is discharged, the power mechanism 64 can be a servo motor or a reduction motor, the center of the auger blade 62 is connected to a rotating shaft 61 that is transmission-connected to the power mechanism 64, and the port of the slag discharge pipe 63 is connected to an electromagnetic valve that is electrically connected to the power mechanism 64, so that the slag discharge pipe 63 can be automatically opened when the power mechanism 64 is running.

[0026] The beneficial effects of the present utility model are as follows: Since the jet holes at one end of the water inlet pipe penetrate through the conical cylinder and are located inside the core pipe, a reflecting plate is connected to the lower end of the core pipe, a baffle plate is arranged inside the vertical cylinder, the drain pipe is connected to the vertical cylinder through a temporary storage chamber, and filter stones are arranged above the baffle plate. The sewage is first sprayed onto the wall of the core pipe for preliminary filtration of large particles, and then flows into the vertical cylinder through the distribution plate and the baffle plate, increasing the flow path of the sewage to enhance the sedimentation effect of suspended solids. The spiral baffle plate enables the suspended solids after sedimentation and consolidation to fall into the conical cylinder along the walls of the vertical cylinder and the conical cylinder through the downward guiding holes, so as to ensure the sedimentation and consolidation effect of the suspended solids in the sewage. Then, the sewage passes through the filter stones for full filtration and screening and flows into the temporary storage chamber and is discharged through the drain pipe, effectively improving the sedimentation and purification effect of the sewage, changing the large-area land occupation required for conventional sewage sedimentation in a water tank, effectively improving the land utilization rate, and ensuring the sewage sedimentation effect. At the same time, the suspended solids after sewage sedimentation can automatically accumulate in the slag chamber connected to the transportation pipe below the conical cylinder, so that the suspended solids can be automatically transported to the slag discharge pipe through the auger blades in the transportation pipe for discharge, facilitating the producer to remove and transport the suspended solids, and thus effectively improving the sewage purification treatment efficiency and convenience.

[0027] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any change or replacement that can be thought of without creative work shall be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.

Claims

1. A sedimentation device for sewage treatment, comprising a vertical cylinder, a conical cylinder connected to the bottom of the vertical cylinder, and a distribution plate connected between the vertical cylinder and the conical cylinder, characterized in that: A baffle connected to the distribution plate is arranged inside the vertical cylinder, a temporary storage chamber is connected to the side of the vertical cylinder, a core tube penetrating the distribution plate and connected to the cone is arranged in the center of the vertical cylinder, and a guide cover and a reflector are connected to the lower end of the core tube, a water inlet pipe penetrating the core tube and connected to the core tube is connected to the side of the cone, a transport pipe is connected below the cone, an auger blade is movably connected to the center of the transport pipe, a power mechanism for driving the auger blade to rotate is connected to the side of the transport pipe, a slag discharge pipe is connected below the transport pipe, filter stones are arranged on the upper end of the baffle, and a guide hole is arranged on the outer surface of the baffle.

2. A sedimentation device for sewage treatment according to claim 1, characterized in that: The baffle is a spiral baffle, and a cavity for placing a temporary storage chamber is arranged on the side of the baffle. A vertical rod is connected through the center of the baffle, and a positioning plate that cooperates with the vertical cylinder is connected above the baffle. The two ends of the vertical rod are respectively connected to the positioning plate and the distribution plate.

3. A sedimentation device for sewage treatment according to claim 2, characterized in that: An overflow port connected to the vertical cylinder is arranged on the upper side of the temporary storage chamber, and the overflow port is located above the positioning plate. A water outlet cavity is arranged on the outer side of the temporary storage chamber, and a drain pipe is connected to the outer side of the water outlet cavity, and the drain pipe is located below the overflow port.

4. A sedimentation device for sewage treatment according to claim 3, characterized in that: A cleaning pipe is connected to the lower outer side of the temporary storage chamber, a guide plate inclined toward the cleaning pipe is connected to the lower surface of the temporary storage chamber, and blocking plates inclined toward the guide plate are connected to both sides of the inner surface of the temporary storage chamber. More than two blocking plates are provided and are arranged alternately.

5. A sedimentation device for sewage treatment according to claim 1, characterized in that: An exhaust pipe and a cleaning pipe are connected above the vertical cylinder. The exhaust pipe is located at one side of the filter stone and is connected to the inside of the vertical cylinder. The cleaning pipe is located at one side of the temporary storage chamber and is connected to the temporary storage chamber.

6. A sedimentation device for sewage treatment according to claim 1, characterized in that: One end of the core tube passes through the upper surface of the vertical cylinder and is detachably connected to a valve cover. The guide cover connected to the lower end of the core tube is located in the cone cylinder. The water inlet pipe passes through the upper side of one end of the core tube and is connected to a spray hole, and an angle a is set between the axis core of the water inlet pipe and the axis core of the core tube.

7. A sedimentation device for sewage treatment according to claim 6, characterized in that: The deflector is inclined toward one side of the wall of the cone cylinder, and the reflector is connected below the deflector. A slag chamber connected to the transport pipe is arranged below the cone cylinder.

8. A sedimentation device for sewage treatment according to any one of claims 1 to 7, characterized in that: The bottom of the vertical cylinder and the top of the cone cylinder are both connected with flanges, and a screw hole for bolt fixing is arranged in the center of the flange, the outer side of the distribution plate is connected with a rubber pad and is located between the flange below the vertical cylinder and the flange below the cone cylinder, the outer surface of the cone cylinder is connected with a bracket for fixing the power mechanism and the transport pipe, and the bottom of the cone cylinder is connected with a support foot.

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