CN217297496U

CN217297496U - Sewage sand removing device

Info

Publication number: CN217297496U
Application number: CN202221247573.0U
Authority: CN
Inventors: 马义威; 王大磊
Original assignee: Henan Chengrui Environmental Protection Industry Co ltd
Current assignee: Henan Chengrui Environmental Protection Industry Co ltd
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2022-08-26
Anticipated expiration: 2032-05-20

Abstract

The utility model belongs to the technical field of sewage treatment, concretely relates to sewage sand removal device, including whirl grit chamber, screw conveyer and support, be equipped with the propeller stirrer soon in the grit fill of whirl grit chamber, propeller stirrer below is equipped with the tubular aerator, and the tubular aerator passes through intake-tube connection to roots's fan, and grit fill upper portion is equipped with the tangential direction water inlet, and the opposite side is provided with the delivery port, and the water inlet is equipped with the prefilter, and the delivery port is equipped with the secondary filter, and grit chamber bottom is equipped with the sand outlet, and the sand outlet is connected to shaftless screw conveyer's feed inlet, and screw conveyer discharge gate below is equipped with and connects the sand car. The primary impurity removal of the water inlet of the rotational flow grit chamber is combined with spiral sand discharging, so that the problem of sand discharging pipe blockage is avoided, and the sand discharging is continuous and efficient; the outlet water is finely filtered, so that the purity of the outlet water is improved; the rotational flow sedimentation is matched with the stirring and shearing of the rotating paddle and the aeration effect, so that the sand settling efficiency and effect are effectively improved.

Description

Sewage sand removing device

Technical Field

The utility model belongs to the technical field of sewage treatment, concretely relates to sewage sand removing device.

Background

Water is a very important resource in daily life and industrial production, along with the rapid development of large-scale industry, the industrial water consumption is increased sharply, the problem of water resource shortage is increasingly severe, and the sewage purification and recycling become a necessary trend. Industry sewage and urban rainwater are the important component part that water treatment circulation recycled, include the desanding process among the sewage treatment usually, need use the desanding device, like more common whirl grit chamber, its theory of operation does, the sand-containing sewage produces the whirl motion under certain power action, because the density of sand and water is different, at centrifugal force, centripetal buoyancy, the effect is dragged to the fluid, make the clear water that density is low rise, discharge by the overflow mouth, the big sand grain of density sinks to the bottom of the pool, discharge by the mouth of arranging sand, thereby reach the mesh of water sand separation. Generally, the sewage to be treated contains a large amount of sand grains and soil, and may also contain a large amount of impurities such as stones, leaves, glass residues and the like. However, most of the existing rotational flow grit chambers adopt a negative pressure suction sand discharging mode, so that the blockage fault of a sand discharging pipe is easy to occur, the sand discharging pipe is still inconvenient to clean and dredge, the delay time is long, the labor intensity is high, and the working efficiency of sewage treatment is influenced. In addition, the existing rotational flow grit chamber also has the problems that the water outlet of an overflow port is not clear enough, the impurity content is still higher, and the water treatment effect is not ideal enough.

SUMMERY OF THE UTILITY MODEL

In order to the above situation, the utility model provides a sewage sand removing device has solved the easy problem of blockking up of whirl grit chamber mucking pipe, has also improved the efficiency and the effect of water treatment simultaneously better.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a sewage desanding device comprises a rotational flow grit chamber, a screw conveyor and a support for supporting the rotational flow grit chamber and the screw conveyor, wherein the rotational flow grit chamber comprises a funnel-shaped grit hopper, a propeller stirrer is coaxially arranged in the grit hopper, a stirring motor is arranged above the top of the grit hopper in a matched manner, a tubular aerator is arranged below the propeller stirrer, a Roots blower is arranged on the side of the support, the tubular aerator is connected to an air outlet of the Roots blower through an air inlet pipe, a water inlet for feeding water in the tangential direction of the side wall of the Roots blower is arranged on one side of the upper part of the grit hopper, a water outlet is arranged on the other side of the grit hopper, a primary filter for primarily filtering the fed water is connected to the water inlet, a fine filter for finely filtering the fed water is arranged on the water outlet, a sand outlet and an inspection hole are arranged at the bottom of the grit hopper, and a switchable sealing cover is arranged on the inspection hole, the sand outlet is connected to a feeding hole of the spiral conveyor, the spiral conveyor is a shaftless spiral conveyor, shaftless spiral conveying blades are coaxially arranged in the spiral conveyor, a conveying motor is arranged at the top of the spiral conveyor in a matched mode, and a movable sand receiving vehicle is arranged below a discharging hole of the spiral conveyor.

Further, the prefilter is the tank filter, and prefilter lateral wall upper portion symmetry is provided with inlet and liquid outlet, is provided with the prefilter screen on the liquid outlet, and the top and the bottom of prefilter all are provided with the clearance mouth, all are provided with the blind flange of switch on the clearance mouth, are provided with the sight glass window on the lateral wall of prefilter, can observe the prefilter internal conditions through the sight glass window, are convenient for in time clear up the prefilter.

Further, be connected with the overflow pipe on the delivery port, the secondary filter is for taking out the picture peg formula filter screen, and overflow pipe wall upper portion is seted up with secondary filter matched with plug gap, and the secondary filter includes secondary filter net and picture peg, sets up in the middle of the picture peg with overflow pipe assorted water hole of crossing, the detachably is provided with the secondary filter net in the water hole, and the picture peg top is bent to side and is formed the handle, conveniently takes out the secondary filter and washs.

Furthermore, connect sand car top to be provided with and connect the sand bucket, the below is provided with the universal wheel, is convenient for connect sand, transport.

Furthermore, the top of the sand setting hopper is provided with a manhole, so that the inside of the sand setting hopper can be conveniently overhauled.

The utility model discloses still including other subassemblies that can make its normal use, be the conventional means in this field, in addition, the utility model discloses in add the device or the subassembly of injecing, for example: propeller stirrers, tubular aerators, roots blowers, shaftless screw conveyors and the like, all using the prior art in the field.

The beneficial effects of the utility model are as follows:

the utility model provides a sewage sand removing device, set up the water inlet preliminary filtration on the basis of whirl grit chamber, go out the water fine filtration and slag tap spiral delivery facility, carry out preliminary edulcoration to the inlet water, combine the spiral sand discharging mode, avoided the sand play jam problem well, also make the sand play more continuous, high-efficient simultaneously, the sand material connects the material to transport also more conveniently; the effluent is subjected to final fine filtration, so that the purity of the effluent after the sewage is subjected to sand setting treatment is improved; the tangent line is intake from the rivers and is subsided, cooperates the rotatory stirring of propeller agitator and cuts, in addition tubular aerator's aeration effect, can effectively improve the sand setting efficiency and the effect in whirl grit chamber.

Drawings

FIG. 1 is a schematic structural diagram of a sewage desanding device in an embodiment.

Fig. 2 is a schematic diagram of the fine filter of fig. 1.

Detailed Description

The technical solutions of the present invention will be described clearly and completely below with reference to specific embodiments, and it should be understood that the described embodiments are only some embodiments, but not all embodiments of the present invention.

Examples

As shown in fig. 1-2, a sewage desanding device comprises a rotational flow grit chamber and a screw conveyor, and a bracket 1 for supporting the rotational flow grit chamber and the screw conveyor, wherein the rotational flow grit chamber comprises a funnel-shaped grit chamber 2, a propeller stirrer 3 is coaxially arranged in the grit chamber, a stirring motor 4 is arranged above the top of the grit chamber in a matching way, a tubular aerator 5 is arranged below the propeller stirrer, a roots blower 6 is arranged on the side of the bracket, the tubular aerator is connected to an air outlet of the roots blower through an air inlet pipe, a water inlet for feeding water along the tangential direction of the side wall of the grit chamber is arranged on one side of the upper part of the grit chamber, a water outlet is arranged on the other side of the upper part of the grit chamber, a prefilter 7 for preliminarily filtering the fed water is connected to the water inlet, a fine filter 8 for finely filtering the discharged water is arranged on the water outlet, a sand outlet and an inspection hole are arranged at the bottom of the grit chamber, but be provided with the sealed lid 9 of switch on the access hole, it is connected to screw conveyer 10's feed inlet to go out the sand mouth, screw conveyer is shaftless screw conveyer, and its inside coaxial shaftless screw conveyer leaf 11 that is provided with, its top cooperation is provided with conveyor motor 12, and screw conveyer's 13 below in discharge gate is provided with mobilizable sand car 14 that connects, connect the sand car top to be provided with and connect sand bucket 15, the below is provided with universal wheel 16, the sand setting fill top is provided with manhole 17.

The prefilter is the tank-type filter, and prefilter lateral wall upper portion symmetry is provided with inlet and liquid outlet, is provided with prefilter screen 18 on the liquid outlet, and the top and the bottom of prefilter all are provided with the clearance mouth, all are provided with the blind flange 19 of switch on the clearance mouth, are provided with sight glass window 20 on the lateral wall of prefilter. The great impurity of volume is by the filtering as far as possible in the whirl grit chamber intaking, stays in tank filter, and light impurity come-up, heavy impurity sinks, can observe the internal conditions of prefilter through the sight glass window, needs the unscheduled clearance to the prefilter, guarantees that it is unobstructed to intake.

Be connected with overflow pipe 21 on the delivery port, the secondary filter is for taking out the picture peg formula filter screen, overflow pipe wall upper portion seted up with secondary filter matched with plug gap, the secondary filter includes secondary filter 22 and picture peg 23, set up in the middle of the picture peg with overflow pipe assorted water hole of crossing, detachably is provided with the secondary filter in the water hole, the picture peg top is bent to side and is formed handle 24. The aperture of the primary filter screen is larger than that of the fine filter screen, the primary filter primarily filters large impurities in the inflow water of the cyclone grit chamber, the fine filter finally filters the outflow water of the cyclone grit chamber, so that the impurities in the outflow water are filtered as much as possible, the impurities are left in the grit chamber to continue to settle, the purity of the outflow water is improved as much as possible, and the fine filter screen also needs to be frequently drawn out for cleaning.

The technical solution of the present invention is not limited to the above-mentioned specific embodiments, and many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. The utility model provides a sewage sand removing device, includes whirl grit chamber and screw conveyer to and be used for supporting the support of whirl grit chamber and screw conveyer, its characterized in that: the cyclone grit chamber comprises a funnel-shaped grit chamber, a propeller stirrer is coaxially arranged in the grit chamber, a stirring motor is arranged above the top of the grit chamber in a matching way, a tubular aerator is arranged below the propeller stirrer, a Roots blower is arranged on the side of the support, the tubular aerator is connected to the gas outlet of the Roots blower through a gas inlet pipe, one side of the upper part of the grit chamber is provided with a water inlet for feeding water along the tangential direction of the side wall of the grit chamber, the other side of the upper part of the grit chamber is provided with a water outlet, the water inlet is connected with a prefilter for primarily filtering the fed water, the water outlet is provided with a fine filter for finely filtering the discharged water, the bottom of the grit chamber is provided with a sand outlet and an access hole, the access hole is provided with a sealing cover capable of being opened and closed, the sand outlet is connected to the feed inlet of a screw conveyor, the screw conveyor is a shaftless screw conveyor, the inside of the sand collecting device is coaxially provided with a shaftless spiral conveying blade, the top of the sand collecting device is provided with a conveying motor in a matching way, and a movable sand collecting vehicle is arranged below a discharge port of the spiral conveyor.

2. The sewage desanding device of claim 1, wherein: the prefilter is the tank-type filter, and prefilter lateral wall upper portion symmetry is provided with inlet and liquid outlet, is provided with the prefilter net on the liquid outlet, and the top and the bottom of prefilter all are provided with the clearance mouth, all are provided with the blind flange of switch on the clearance mouth, are provided with the sight glass window on the lateral wall of prefilter.

3. The sewage desanding device of claim 1, wherein: be connected with the overflow pipe on the delivery port, the secondary filter is for taking out the picture peg formula filter screen, and overflow pipe wall upper portion is seted up with secondary filter matched with plug gap, and the secondary filter includes secondary filter net and picture peg, sets up in the middle of the picture peg with overflow pipe assorted water hole of crossing, the downthehole detachably of crossing is provided with the secondary filter net, and the picture peg top is bent to side and is formed the handle.

4. The sewage desanding device of claim 1, wherein: connect the sand car top to be provided with and connect the sand bucket, the below is provided with the universal wheel.

5. The sewage desanding device of claim 1, wherein: a manhole is arranged at the top of the sand setting hopper.