JP4522750B2 - Sediment separation and transfer device - Google Patents

Description

  The present invention relates to an apparatus for separating and transferring residue, and in particular, it is recovered from a sand settling basin in a sewage treatment plant and separated in a washing process of sand settling (including dirt sand, hereinafter referred to as “sand settling”) such as a solid-liquid separator. The present invention relates to an apparatus for separating and transporting scum (contaminant), which is separated from sewage without power using the energy of sewage mixed sewage and transported while draining water.

Conventionally, sand settling (sewage) that has been pumped from a settling basin such as a sewage treatment plant or water treatment plant is floated during washing of the settling sand using a solid-liquid separation device using differential gravity separation, centrifugation, etc. The trash that overflows is overflowed with the overflow water, and only the sand that settles at the bottom is collected.
Then, the residue and sewage separated from the settling sand are transported to a processing device such as a dust remover, and the residue from the sewage is captured through a screen or the like. Yes.

By the way, in recent years, the sewage standards for sewage have become stricter, and sewage containing slag cannot be drained directly into rivers and the like. If the amount of sewage containing residue is small, such as in a small-scale treatment plant, installing this dust remover will increase capital investment, which is uneconomical and requires power in the vicinity of the sewage treatment facility. When there was no source, there was a problem that a power type dust remover could not be installed.
In addition, the residue (contaminant) separated from the settling sand has a high moisture content and is susceptible to spoilage, and thus has sanitary problems such as generation of odor.

  In view of the above-described problems of the conventional residue processing, the present invention uses the energy of residue mixed wastewater to separate the residue from wastewater with no power, and to transport the residue while draining the residue. Another object of the present invention is to provide an apparatus for separating and transferring residue.

To achieve the above object, separating the transfer device of the present invention bookmarks residue is in the casing to the overflow from the sand separator installed in upward residue mixed wastewater Ru is supplied through the water supply pipe, and residue mixed wastewater A drive paddle that is rotationally driven by the energy of the screw , a screw that is rotationally driven by the drive paddle, and a screw conveyor that comprises a screw casing that has an upper surface opened and formed a drain hole for draining water. It is characterized by being arranged.

In this case, a cleaning brush can be attached to the screw shaft of the screw conveyor.

  Further, the screw conveyor can be disposed so as to be inclined so that the tip end side becomes higher.

According to the apparatus for separating and transferring residue of the present invention, it is possible to separate the residue and sewage without using any other power, using the energy of the residue mixed sewage, so that the power source can be separated on site. It can be used easily even in a place where there is not, and can be transported to a predetermined position while draining and removing the residue.

  Further, since drainage holes for draining are formed in the screw casing of the screw conveyor, the residue can be washed and drained only by supplying the residue mixed sewage to the screw conveyor.

In addition, since the cleaning brush is attached to the screw shaft of the screw conveyor, the screw casing is automatically cleaned by driving the screw conveyor, and the drainage holes for draining formed in the screw casing are clogged. Can be prevented.

  Further, since the screw conveyor is disposed so as to be higher at the tip side, drainage of the residue discharged from the tip of the screw conveyor can be easily and reliably performed.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a residue separation and transfer apparatus according to the present invention will be described below with reference to the drawings.

  1 to 3 show an embodiment of the apparatus for separating and transferring residue of the present invention.

  In a sand settling device B that also serves as a sand set washing machine that is introduced from a set amount of set sand set water collected from a settling basin and pumped and washed with this set sand set water (or wash water), The sediment is agitated and washed, and the residue is sent together with the sewage to the residue separation / transfer apparatus A of the present invention. Although it is not a thing, for example, it is made to convey to the residue dehydrator D.

  As shown in FIGS. 1 and 2, the residue separating and transferring apparatus A overflows from the sedimentation separating apparatus B that also functions as a sand setter and receives the residue mixed sewage sent through the water supply pipe 1. A bowl-shaped casing 2 for watering, a drive paddle 3 that is rotatably arranged in the casing 2 and is rotationally driven by the drainage energy of the sewage mixed sewage from the water supply pipe 1; A screw conveyor 4 for passing through the casing 2 and disposed at a lower position of the drive paddle 3 and for cleaning and conveying residue is configured.

  The vertical casing 2 is connected to a water supply pipe 1 at the top and a drain pipe 5 at the bottom, and the residue mixed sewage supplied from the water supply pipe 1 into the casing 2 is a screw conveyor for washing and conveying the residue. Only the dirty water from which the residue is separated and removed in 4 is formed to be drained from the drain pipe 5 at the bottom. Note that the shape of the casing 2 is not particularly limited.

A drive paddle 3 is disposed in the upper part of the casing 2. The drive paddle 3 is disposed below the connecting portion of the water supply pipe 1 so that the waste mixed waste water discharged from the water supply pipe 1 directly collides with the blades 31 of the drive paddle 3. The drive paddle 3 is rotationally driven using the energy of the sewage.
The drive paddle 3 rotatably supports a shaft 32 provided with a plurality of blades 31 (four in the illustrated embodiment) on the outer periphery thereof by bearings 33 and 33 attached to the casing 2 and has one end thereof A pulley or gear 34 is attached to the end of the casing 2 so as to project outside the casing 2, and the rotational driving force of the drive paddle 3 is transmitted to the screw conveyor 4 side via a power transmission mechanism 6 such as a belt or chain.

  The screw conveyor 4 for cleaning and conveying the residue is not particularly limited. The upper surface of the screw conveyor 4 is not particularly limited. For example, a U-shaped screw casing 41 protrudes from the casing 2 to the outside of one side. In the screw casing 41, blades are spirally arranged on the outer periphery of the screw shaft 42, a screw 43 integrated with the screw shaft is provided, and a bearing in which the screw shaft 42 is attached to the casing 2. 44, and a pulley or gear 45 is attached to the outer end of the screw shaft 42, and a power transmission such as a belt or a chain is transmitted between the pulley or gear 45 and the pulley or gear 34 on the drive paddle 3 side. The mechanism 6 is stretched.

The screw casing 41 is formed by bending a metal plate into a U shape. In this case, a drain hole 41h is provided at least in a portion inserted into the casing 2, and the screw casing 41 is supplied into the screw casing 41. Allow the sewage to drain downward. For this reason, a punching metal can be used as a metal plate forming the screw casing 41.
Further, a brush 46 projects from the screw shaft 42 between the screw blades, and when the screw 43 rotates in the screw casing 41, the tip of the brush 46 slides on the inner peripheral surface of the screw casing 41. It cleans so that it may contact, and prevents the drain hole 41h of the screw casing 41 from being clogged.

3, the embodiment shown the facilities for part handling Agesuna of separating transfer feeder A according to the present invention bookmarks residue, from the solid-liquid sand basin in conjunction with the sand separator B which also serves as a grit washer for separating It is.
In this case, a screw conveyor C for discharging the solid-liquid separated sand is disposed in the lower part of the sand settling apparatus B that also serves as a sand settling machine, and the waste mixed sewage overflows from the upper part of the sand settling apparatus B. to discharge, and connecting the water supply pipe 1 for supplying to the separation shifting feeding apparatus a residue to sand separator B.
Also, connecting to the tip portion of the screw conveyor 4 for conveying the separated transfer feeder A Works residue washed residue to渣脱water machine D. As a result, the sand from the settling basin is treated in part.

Next, the operation of the separating shifter feeder A according to the present invention bookmarks residue.
The residue mixed sewage supplied from the water supply pipe 1 into the casing 2 directly collides with the blades 31 of the drive paddle 3, thereby driving the drive paddle 3 to rotate. The driving force and the rotational speed thereof are determined by the flow rate and amount of the residue mixed sewage supplied from the water supply pipe 1.
The residue mixed sewage that collided with the blade 31 of the drive paddle 3 from the water supply pipe 1 falls into the screw casing 41 disposed at the lower position of the drive paddle 3, and the sewage passes through the drain hole 41 h of the screw casing 41. Falls to the bottom of the casing 2 and is collected and drained from the drain pipe 5 to the outside.

  On the other hand, since the residue trapped in the screw casing 41 is transmitted to the screw 43 through the power transmission mechanism 6 by the rotational driving force by the drive paddle 3, the screw casing is rotated by the rotation of the screw 43. It is conveyed in 41 toward the exit side. At this time, since the brush 46 protrudes from the screw 43, cleaning is performed so that the tip end portion of the brush is in sliding contact with the inner peripheral surface of the screw casing 41, and the screw casing 41 is prevented from being clogged. As a result, drainage of water is surely performed.

Moreover, in the said Example, although the screw conveyor 4 protrudingly provided in the casing 2 and carrying a residue washing | cleaning conveyance is made into the substantially horizontal direction, in order to perform draining more reliably, the front end side (discharge side) of the screw conveyor 4 is used. It can also be inclined to be higher than the driven base end side.
In addition, when the amount of sewage mixed sewage supplied from the water supply pipe 1 is small and the screw conveyor 4 cannot be driven, the screw conveyor 4 can be forcibly driven. This can be done by providing a forced drive device (not shown) such as a motor at the end of the screw shaft 42.

Although the separation transfer feeder of the present invention bookmarks residue, but is not limited to these embodiments, the present invention is not limited to the configuration described in the above embodiments, as applicable, its within a scope not departing from its gist The configuration can be changed.

Separating transfer feeder of the present invention bookmarks residue is to separate by driving the screw conveyor for and to residue washed transported utilizing the energy of the Shi residue mixed wastewater is supplied from the water supply pipe conveying the residue with non-powered since having the property of, and in addition which can be suitably used in applications of the separation transfer feeder of residue, for example, used in the upflow settling separator or a rectangular-type sand separator applications be able to.

Is a front longitudinal sectional view showing an embodiment of a separating transfer feeder of the present invention bookmarks residue. It is the same side view. It is an explanatory view showing a facility for part handling Agesuna of separating transfer feeder of the present invention bookmarks residue from settling basin in conjunction with the sand washer.

A and residue separation transfer feeder B sand sand separator also serves as a cleaning unit C screw conveyor D and渣脱water machine 1 water supply pipe 2 casing 3 drive paddle 31 blade 32 shaft 33 bearing 34 pulley or gear 4 a screw conveyor 41 Screw casing 42 Screw shaft 43 Screw 44 Bearing 45 Pulley or gear 5 Drain pipe 6 Power transmission mechanism

Claims (3)

In a casing to have overflow from the sand separator installed in upward residue mixed wastewater Ru is supplied through the water supply pipe, and a drive paddle rotated at energy of the residue mixed wastewater, rotated by the drive paddle it is driven by opening a screw and an upper surface for residue washing conveyor, to be characterized by being configured by arranging a screw conveyor comprising a screw casing which is formed a drain hole for draining transmission shift separation of residue device . Separating transfer feeder according to claim 1, wherein Works residue, characterized in that fitted with brushes for cleaning the screw shaft of the screw conveyor. Separating transfer feeder according to claim 1 or 2 wherein Works residue, characterized in that the screw conveyor is inclined such that the distal end side becomes higher is disposed.

Images