CN210698953U - Air-lift type sand setting machine - Google Patents
Air-lift type sand setting machine Download PDFInfo
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- CN210698953U CN210698953U CN201921387427.6U CN201921387427U CN210698953U CN 210698953 U CN210698953 U CN 210698953U CN 201921387427 U CN201921387427 U CN 201921387427U CN 210698953 U CN210698953 U CN 210698953U
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Abstract
The utility model discloses an air-lift sand settling machine, which comprises a sand settling tank, a sand lifting pipe and an air inlet pipe; a water inlet pipe and a water outlet pipe are arranged on the side wall of the upper part of the grit chamber, and one end of the water inlet pipe is tangentially arranged on the side wall of the upper part of the grit chamber; a supporting frame is arranged at the mouth of the grit chamber, a sand lifting pipe and an air inlet pipe are fixed on the supporting frame, a sand suction port of the sand lifting pipe extends to the bottom of the grit chamber, swirl nozzles are uniformly arranged on the inner wall of the sand suction port along the circumferential direction, and the swirl nozzles are connected with an air outlet of the air inlet pipe; cross above-mentioned setting, change the air and at the intraductal injection direction of sand lifting, at the intraductal whirl that forms of sand lifting, utilize rotatory partial force, increase the inertia of air current and rivers, adopt the form of whirl air stripping to increase lifting power and suction, improve sand efficiency, because the effect of whirl can effectively avoid the sand grain to fall into the whirl shower nozzle and lead to the intake pipe to block up simultaneously.
Description
Technical Field
The utility model relates to a sewage treatment device field, in particular to sand machine is sunk to air lift formula.
Background
In the prior sand removing process of sewage treatment, an air-lift type sand settling machine is generally adopted for sand removal, rotational flow is utilized for sand removal, the working principle is that water flow enters the sand settling machine from a water inlet in a tangential direction to generate strong water flow rotary motion, because the densities of the water and the sand are different, the water with low density rises and flows out through a water outlet under the action of centrifugal force, centripetal force, buoyancy and fluid drag force, sand grains with high density sink to a sand collecting hopper at the bottom of equipment and are discharged through a sand lifting pipe, and therefore the purpose of sand removal is achieved.
Most of the existing air-lift sand settling machines directly connect pressure air into the bottom end of a sand lifting pipe, and the mixture of sand grains and water at the bottom of the equipment is driven to rise through the rising characteristic of air bubbles in water and is discharged from the sand lifting pipe; and the mode of direct access pressure air is not high to pressure air's utilization ratio, and the lifting force is not big, leads to out sand efficiency lower, and because the lifting force is not enough, the great sand grain of quality can drop into the gas pocket, takes place the trachea jam easily.
It is seen that improvements and enhancements to the prior art are needed.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing prior art's weak point, the utility model aims to provide an air-lift formula sand setting machine aims at strengthening the lifting force who carries the sand pipe, improves sand efficiency, prevents the trachea jam simultaneously.
In order to achieve the purpose, the utility model adopts the following technical proposal:
an air-lift sand settling machine comprises a sand settling tank, a sand lifting pipe and an air inlet pipe; a water inlet pipe and a water outlet pipe are arranged on the side wall of the upper part of the grit chamber, and one end of the water inlet pipe is tangentially arranged on the side wall of the upper part of the grit chamber; the pool mouth of grit chamber sets up the supporting rack, and sand lifting pipe and intake pipe are fixed on the supporting rack, and sand lifting pipe's sand suction mouth extends to the bottom of grit chamber, evenly sets up the whirl shower nozzle along the circumferencial direction on the inner wall of sand suction mouth, and the whirl shower nozzle is connected with the gas outlet of intake pipe.
The air-lift sand settling machine is characterized in that a booster water pump is arranged on the water inlet pipe.
The air-lift sand settling machine is characterized in that a nozzle of the rotational flow nozzle is arranged in the circumferential direction of the inner wall of the sand sucking port and in the oblique upward direction.
The air-lift sand settling machine is characterized in that the air inlet pipe further comprises an annular air distributing pipe, the annular air distributing pipe is fixed on the outer wall of the sand outlet, and an air outlet of the air inlet pipe is connected with the cyclone spray head through the annular air distributing pipe.
The air-lift sand settling machine is characterized in that the upper portion and the lower portion of the sand settling tank are cylindrical, the caliber of the upper portion is larger than that of the lower portion, the upper portion and the lower portion are connected through the inverted circular truncated cone section, and the bottom end of the lower portion is provided with the sand collecting hopper.
The air-lift sand settling machine further comprises a stirring mechanism arranged in the upper part, and the stirring mechanism comprises a motor, a gear box, a shaft cylinder and a stirring paddle; the gear box is arranged on the supporting frame, the sand extracting pipe and the air inlet pipe penetrate through the gear box, the shaft barrel is sleeved on the sand extracting pipe and the air inlet pipe, the upper end of the shaft barrel is connected with the motor through the gear box, and the lower end of the shaft barrel is connected with the stirring paddle.
The air-lift sand settling machine is characterized in that a cleaning opening is formed in the side wall of the bottom of the sand collecting hopper, and a valve is arranged on the cleaning opening.
The air-lift sand settling machine is characterized in that the sand lifting pipe and the air inlet pipe are both provided with control valves.
The air-lift sand settling machine is characterized in that the sand suction port is in a bell mouth shape.
Has the advantages that:
the utility model provides an air lift formula sand setting machine compares prior art, and through setting up the whirl shower nozzle in sand suction mouth department, the injection direction of change air forms the whirl in sand lifting pipe, utilizes rotatory partial force, increases the inertia of air current and rivers, adopts the form of whirl air stripping to strengthen lifting force and suction, improves sand outlet efficiency, simultaneously because the effect of whirl can effectively avoid the sand grain to fall into the whirl shower nozzle and lead to the intake pipe to block up.
Drawings
Fig. 1 is the utility model discloses a structural schematic diagram of sand machine is sunk to air stripping formula.
FIG. 2 is a schematic structural view of the spiral-flow nozzle
Fig. 3 is the utility model discloses a top view schematic diagram of air stripping sand settling machine.
Description of the main element symbols: the sand basin comprises a sand basin 10, an upper part 11, a lower part 12, an inverted circular truncated cone section 13, a sand collecting hopper 14, a cleaning opening 15, a sand lifting pipe 20, a sand suction opening 21, a cyclone spray head 22, an air inlet pipe 30, an annular gas distribution pipe 31, a water inlet pipe 40, a water outlet pipe 50, a support 60, a booster water pump 70, a stirring mechanism 80, a motor 81, a gear box 82, a shaft cylinder 83, a stirring paddle 84, a valve 91, a control valve 92 and a support 93.
Detailed Description
The utility model provides a sand machine is sunk to air lift formula, for making the utility model discloses a purpose, technical scheme and effect are clearer, clear and definite, and it is right that the following refers to the drawing and the embodiment is lifted the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the invention.
In the description of the present invention, it is to 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; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1-2, in the present embodiment, the present invention provides an air-lift sand settling machine, which includes a sand settling tank 10, a sand lifting pipe 20 and an air inlet pipe 30; the side wall of the upper part 11 of the grit chamber is provided with a water inlet pipe 40 and a water outlet pipe 50, and one end of the water inlet pipe is tangentially arranged on the side wall of the upper part of the grit chamber; a supporting frame 60 is arranged at the mouth of the grit chamber, a sand lifting pipe and an air inlet pipe are fixed on the supporting frame, a sand suction port 21 of the sand lifting pipe extends to the bottom of the grit chamber, swirl nozzles 22 are uniformly arranged on the inner wall of the sand suction port along the circumferential direction, and the swirl nozzles are connected with an air outlet of the air inlet pipe; the side wall of the grit chamber is provided with a support 93 for support.
In this embodiment, sewage enters the grit chamber through the inlet pipe in a tangential direction, a circulation is formed in the grit chamber, water with low density rises and flows out through the outlet pipe under the action of a plurality of mechanical forces such as centrifugal force and centripetal force, sand grains or organic matters with high density sink and are concentrated to the bottom of the grit chamber. The air inlet pipe conveys pressure air to the sand suction port of the sand lifting pipe, the rotational flow nozzle at the sand suction port changes the spraying direction of the air, rotational flow is formed in the sand lifting pipe, and the inertia of air flow and water flow is increased by utilizing the rotational deviation force, so that the sand discharging efficiency is improved. The arrangement increases the lifting force by using the deviation force of the rotational flow and adopting the form of rotational flow air stripping, improves the sand production efficiency, and simultaneously can effectively avoid sand grains from falling into the rotational flow spray head to cause the blockage of the air inlet pipe due to the rotational flow.
Referring to fig. 3, as a preferred option, the position of the water outlet pipe on the sidewall of the grit chamber is adjusted, so that the sewage flows out from the water inlet pipe, rotates 270 ° in the grit chamber and is discharged from the water outlet pipe, and compared with other rotation angles, the effect of separating sand from water by using the circulation flow can be maximized.
Preferably, a booster pump is provided on the inlet pipe 40 to boost the incoming sewage, thereby enhancing the circulation of the sewage in the sedimentation tank, accelerating the sand-water separation and improving the sewage treatment efficiency.
Referring to fig. 2, in some embodiments, the nozzles of the swirl nozzles 22 are arranged obliquely upward along the circumferential direction of the inner wall of the sand suction port 21, and the swirl nozzles are arranged counterclockwise or clockwise to form a more powerful swirl, thereby improving the sand discharging efficiency.
Further, the air inlet pipe 30 further comprises an annular air distribution pipe 31, the annular air distribution pipe is fixed on the outer wall of the sand outlet 21 in a hoop mode, and an air outlet of the air inlet pipe 30 is connected with the cyclone spray head 22 through the annular air distribution pipe, so that the connection reliability between the air inlet pipe and the sand extracting pipe 20 is enhanced.
Referring to fig. 1, in some embodiments, the upper part 11 and the lower part 12 of the grit chamber are both cylindrical, the caliber of the upper part is larger than that of the lower part, the upper part and the lower part are connected through an inverted circular truncated cone section 13, and a sand collection hopper 14 is arranged at the bottom end of the lower part. Through the arrangement, sewage enters the lower part along the inverted circular truncated cone section after being subjected to sand-water separation treatment on the upper part of the grit chamber, so that sand grains are concentrated at the sand suction port 21, and the sand outlet efficiency is improved.
Referring to fig. 1 and 3, in some embodiments, the stirring device further includes a stirring mechanism 80 disposed in the upper portion, the stirring mechanism including a motor 81, a gear box 82, a shaft cylinder 83, and a stirring paddle 84; the gear box is arranged on the supporting frame 60, the sand extracting pipe 20 and the air inlet pipe 30 penetrate through the gear box, the shaft barrel is sleeved on the sand extracting pipe and the air inlet pipe, the upper end of the shaft barrel is connected with the motor through the gear box, and the lower end of the shaft barrel is connected with the stirring paddle. The stirring paddle is matched with the rotation direction of the circulation flow to stir, so that the deviation force and the centrifugal force generated by the circulation flow are enhanced, the separation speed of sand and water and the sinking speed of sand grains are improved, and the sewage treatment speed is improved.
In some embodiments, a cleaning port 15 is arranged on the bottom side wall of the sand collecting hopper 14, and a valve 91 is arranged on the cleaning port; the sediment deposited at the bottom of the grit chamber 10 can be discharged by opening the valve, so that the grit chamber is convenient to clean; preferably, the cleaning can be performed by connecting a water suction pump through a valve.
In some embodiments, control valves 92 are provided on both the sand lifting pipe 20 and the air inlet pipe 30 to facilitate adjustment of the sand production efficiency.
Preferably, the sand suction port 21 is formed in a bell mouth shape to enhance the sand collecting capability in water.
It is understood that equivalent substitutions or changes can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such changes or substitutions shall fall within the scope of the present invention.
Claims (9)
1. An air-lift sand settling machine is characterized by comprising a sand settling tank, a sand lifting pipe and an air inlet pipe; a water inlet pipe and a water outlet pipe are arranged on the side wall of the upper part of the grit chamber, and one end of the water inlet pipe is tangentially arranged on the side wall of the upper part of the grit chamber; the pool mouth of grit chamber sets up the supporting rack, and sand lifting pipe and intake pipe are fixed on the supporting rack, and sand lifting pipe's sand suction mouth extends to the bottom of grit chamber, evenly sets up the whirl shower nozzle along the circumferencial direction on the inner wall of sand suction mouth, and the whirl shower nozzle is connected with the gas outlet of intake pipe.
2. The air-lift sand-settling machine of claim 1, wherein a booster water pump is arranged on the water inlet pipe.
3. The air-lift sand settling machine as claimed in claim 1, wherein the nozzle of the cyclone nozzle is arranged obliquely upward along the circumferential direction of the inner wall of the sand suction port.
4. The air-lift sand settling machine of claim 3, wherein the air inlet pipe further comprises an annular air distribution pipe, the annular air distribution pipe is fixed on the outer wall of the sand outlet, and an air outlet of the air inlet pipe is connected with the cyclone spray head through the annular air distribution pipe.
5. The air-lift sand settling machine of claim 1, wherein the upper part and the lower part of the sand settling tank are both cylindrical, the caliber of the upper part is larger than that of the lower part, the upper part and the lower part are connected through an inverted circular truncated cone section, and a sand collecting hopper is arranged at the bottom end of the lower part.
6. The air-lift sand settling machine of claim 5, further comprising a stirring mechanism disposed in the upper portion, the stirring mechanism comprising a motor, a gear box, a shaft, a stirring paddle; the gear box is arranged on the supporting frame, the sand extracting pipe and the air inlet pipe penetrate through the gear box, the shaft barrel is sleeved on the sand extracting pipe and the air inlet pipe, the upper end of the shaft barrel is connected with the motor through the gear box, and the lower end of the shaft barrel is connected with the stirring paddle.
7. The air-lift sand settling machine of claim 5, wherein a cleaning port is arranged on the side wall of the bottom of the sand collecting hopper, and a valve is arranged on the cleaning port.
8. The air-lift sand settling machine of claim 1, wherein control valves are arranged on both the sand lifting pipe and the air inlet pipe.
9. The air-lift sand settler of claim 1, wherein the sand suction port is bell mouth shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921387427.6U CN210698953U (en) | 2019-08-23 | 2019-08-23 | Air-lift type sand setting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921387427.6U CN210698953U (en) | 2019-08-23 | 2019-08-23 | Air-lift type sand setting machine |
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| CN210698953U true CN210698953U (en) | 2020-06-09 |
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| CN201921387427.6U Active CN210698953U (en) | 2019-08-23 | 2019-08-23 | Air-lift type sand setting machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112903328A (en) * | 2021-01-28 | 2021-06-04 | 武汉理工大学 | Liquid-solid two-phase pneumatic lifting test bench |
-
2019
- 2019-08-23 CN CN201921387427.6U patent/CN210698953U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112903328A (en) * | 2021-01-28 | 2021-06-04 | 武汉理工大学 | Liquid-solid two-phase pneumatic lifting test bench |
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