CN111841086A

CN111841086A - Sand setting device

Info

Publication number: CN111841086A
Application number: CN202010628786.7A
Authority: CN
Inventors: 陆裕峰; 童胜宝; 姚鹏; 王腾; 郑晓宇; 武京伟
Original assignee: Everbright Envirotech China Ltd; Everbright Environmental Protection Research Institute Nanjing Co Ltd
Current assignee: Everbright Envirotech China Ltd; Everbright Environmental Protection Research Institute Nanjing Co Ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2020-10-30
Anticipated expiration: 2040-07-01
Also published as: CN111841086B

Abstract

The invention discloses a sand setting device, comprising: the barrel is provided with a feeding hole, a discharging hole and a sand outlet; the guide cylinders are arranged in the cylinder body so as to form a plurality of concentric circular flow channels in the cylinder body; the stirring device is arranged in the cylinder body so as to enable the materials in the cylinder body to rotate in the same direction. According to the sand setting device, the plurality of guide cylinders are arranged in the cylinder body to form the plurality of concentric circular flow channels in the cylinder body, and the materials in the plurality of concentric circular flow channels rotate in the same direction under the action of the stirring device, so that the size of the sand setting device is reduced, the total length of the flow channels in the sand setting device is increased, the settling time of the materials is prolonged, the settling effect is improved, and the aim of achieving a good settling effect under the condition of occupying a smaller space is fulfilled.

Description

Sand setting device

Technical Field

The invention relates to the field of sewage treatment equipment, in particular to a sand setting device.

Background

In the sewage treatment process of industrial wastewater, domestic wastewater, kitchen waste and the like, sand settling is an important treatment link. The common sand settling device comprises a settling tank, a sand settling machine, a settling tank and the like.

In order to achieve a good sand settling effect, a long settling time is required in a common gravity settling type sand settling device, so that the size of the sand settling device or equipment is large. However, in a sand settling machine installed in an indoor space such as a workshop, it is required to achieve a good settling effect while occupying a smaller space.

Disclosure of Invention

In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

The invention provides a sedimentation device, comprising:

the barrel is provided with a feeding hole, a discharging hole and a sand outlet;

the guide cylinders are arranged in the cylinder body so as to form a plurality of concentric circular flow channels in the cylinder body;

the stirring device is arranged in the cylinder body so as to enable the materials in the cylinder body to rotate in the same direction.

Furthermore, an overflow port is arranged on the guide cylinder, so that the material overflows from the inner runners of the plurality of concentric runners to the outer runners of the plurality of concentric runners.

Further, the guide shell is fixed on the top of the shell.

And the guide cylinder at least comprises two guide cylinders so as to form three concentric circular flow channels in the cylinder body, wherein the first flow channel, the second flow channel and the third flow channel are arranged from inside to outside in sequence.

Further, agitating unit includes pivot, upper stirring leaf, lower floor's stirring leaf and scraping plate, wherein, the upper stirring leaf with the lower floor's stirring leaf is fixed in the pivot, the scraping plate is fixed in the bottom of lower floor's stirring leaf.

Further, the width of the lower layer stirring blade is larger than that of the upper layer stirring blade.

Furthermore, the sand scraping plate is designed in a sawtooth mode and is arranged discontinuously, and a pressing-down inclination angle can be formed when the sand scraping plate is pressed down.

Further, the cylinder body includes a cylindrical cylinder located at an upper portion and a tapered cylinder located below the cylindrical cylinder and connected and communicated with the cylindrical cylinder.

Further, the feed inlet is arranged at the top of the barrel, the discharge outlet is arranged on the side wall of the cylindrical barrel, and the sand outlet is arranged at the bottom of the conical barrel.

Further, the sand setting device further comprises a conveying device configured to convey the sand setting discharged from the sand outlet.

According to the sand setting device, the plurality of guide cylinders are arranged in the cylinder body to form the plurality of concentric circular flow channels in the cylinder body, and the materials in the plurality of concentric circular flow channels rotate in the same direction under the action of the stirring device, so that the size of the sand setting device is reduced, the total length of the flow channels in the sand setting device is increased, the settling time of the materials is prolonged, the settling effect is improved, and the aim of achieving a good settling effect under the condition of occupying a smaller space is fulfilled.

Drawings

The following drawings of the invention are included to provide a further understanding of the invention. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

In the drawings:

fig. 1 is a schematic structural view of a settling device according to an exemplary embodiment of the present invention;

fig. 2 is a sectional view of an inner structure of a cartridge according to an exemplary embodiment of the present invention;

FIG. 3 is a top view of the internal structure of a cartridge according to an exemplary embodiment of the present invention;

fig. 4 is a structural schematic of a stirring device according to an exemplary embodiment of the present invention.

Reference numerals

100 barrel 101 feed inlet

102 discharge hole 103 sand outlet

111 first flow passage 112 second flow passage

113 third flow passage 200 guide shell

201 first draft tube 202 second draft tube

300 stirring device 301 rotating shaft

302 upper layer stirring blade 303 lower layer stirring blade

304 scraping plate 305 driving device

400 conveyer 401 draining tank

402 arrange sand mouth 500 support

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.

In the following description, for a thorough understanding of the invention, a detailed description will be given to illustrate the settling device of the invention. It is apparent that the practice of the invention is not limited to the specific details familiar to those skilled in the art of wastewater treatment. The following detailed description of the preferred embodiments of the invention, however, the invention is capable of other embodiments in addition to those detailed.

It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art. In the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same elements are denoted by the same reference numerals, and thus the description thereof will be omitted.

Aiming at the requirement that the sand setting device can still achieve good settling effect under the condition of occupying smaller space, the invention provides a sand setting device, as shown in figure 1, which comprises:

the sand-removing device comprises a cylinder body 100, wherein a feed inlet 101, a discharge outlet 102 and a sand outlet 103 are formed in the cylinder body 100;

the guide cylinders 200 are arranged in the cylinder body 100, so that a plurality of concentric circular flow channels are formed in the cylinder body 100;

and the stirring device 300 is arranged in the cylinder 100, so that the materials in the cylinder 100 rotate in the same direction.

Illustratively, the cylinder 100 constitutes a space for settling sand.

In one embodiment, as shown in fig. 1 and 2, the cartridge body 100 includes an upper cylindrical barrel and a lower tapered barrel, i.e., the cartridge body 100 includes an upper cylindrical barrel and a tapered barrel located below and connected to and communicating with the cylindrical barrel. The feed inlet 101 is arranged at the top of the upper cylindrical barrel, the discharge outlet 102 is arranged on the side wall of the upper cylindrical copper, and the sand outlet 103 is arranged at the bottom of the lower conical barrel. Further, cartridge 100 may be supported by bracket 500, and cartridge 100 and bracket 500 may be made of rigid materials.

Illustratively, several guide cylinders 200 are disposed within the cylinder 100 to form a plurality of concentric circular flow passages within the cylinder 100.

Illustratively, the guide shell 200 is fixed to the top of the cylinder 100.

In one embodiment, as shown in fig. 2 and 3, at least two guide cylinders 200 are included in the cylinder 100, specifically, a first guide cylinder 201 located at the inner side and a second guide cylinder 202 located at the outer side, so as to form three concentric circular flow channels in the cylinder 100, namely, a first flow channel 111, a second flow channel 112 and a third flow channel 113 from inside to outside in sequence.

Illustratively, the material enters the innermost flow channel of the plurality of concentric flow channels through the feed port 101, that is, the material enters the flow channel in the central area of the plurality of concentric flow channels through the feed port 101.

Illustratively, the guide shell 200 is provided with an overflow port so that the material overflows from an inner runner of the plurality of concentric runners to an outer runner of the plurality of concentric runners.

Illustratively, the overflow port is located at an upper portion of the guide shell 200. Further, the height of the overflow opening is equivalent to the height of the discharge opening (flush or nearly flush).

In one embodiment, as shown in fig. 2 and 3, the material enters the first flow channel 101 through the feed port 101, and under the action of the stirring device 300, the material rotates clockwise to settle sand, continues to rotate clockwise to the second flow channel 102 through an overflow port (not shown) on the first guide cylinder 201, and continues to rotate clockwise to settle sand, continues to rotate clockwise to the third flow channel 103 through an overflow port (not shown) on the second guide cylinder 202 to settle sand, and is discharged through the discharge port 102 after settling sand.

The multiple concentric circular flow channels are formed in the barrel, so that the total length of the flow channels is increased, and the total length of the flow channels is increased by more than 80% compared with that of a single circular flow channel due to the design of the multiple concentric circular flow channels, so that the sedimentation time is prolonged, and the sedimentation effect is improved. Meanwhile, the sedimentation device with the multiple concentric circular flow channels is compact in structure, small in occupied area and suitable for indoor operation space.

Illustratively, the stirring device 300 is disposed in the barrel 100, so that the materials in the barrel 100 rotate in the same direction.

Referring to fig. 2 and 4, the stirring device 300 includes a rotation shaft 301, an upper stirring blade 302, a lower stirring blade 303, and a scraping plate 304. The upper-layer stirring blades 302 and the lower-layer stirring blades 303 are fixed on the rotating shaft 301, the rotating shaft 301 is driven by a driving device 305 to drive the upper-layer stirring blades 302 and the lower-layer stirring blades 303 to rotate so as to stir materials, and heavy gravels, bone residues and other heavy objects (settled sands) are settled to the bottom of the cylinder body in the material rotating process; the sand scraping plate 304 is fixed at the bottom of the lower-layer stirring blade 303, and the sand scraping plate 304 is driven by the lower-layer stirring blade 303 to rotate so as to accelerate the discharge of settled sand at the bottom of the cylinder 100. Through combining stirring leaf and scraping sand board on agitating unit to make agitating unit realize plug flow and the function of scraping sand simultaneously.

Illustratively, the rotating shaft 301 is arranged along the center of the barrel 1, and the top end of the rotating shaft is connected with the driving device 305 through a coupling, and is driven by the driving device 305 to rotate, so as to drive the upper-layer stirring blades 302 and the lower-layer stirring blades 303 to rotate. The driving device 305 is installed above the drum 100 and connected to the rotating shaft 301 of the stirring device 300 through a coupling. The rotation speed of the rotating shaft 301 can be adjusted by the driving device 305 as required.

Illustratively, the width of the lower stirring blade 303 is greater than the width of the upper stirring blade 302.

In one embodiment, since the width of the lower stirring blade 303 is greater than the width of the upper stirring blade 302, in order to avoid collision between the guide cylinder 200 and the stirring device 300, the length of the downward extension of the first guide cylinder 201 is less than the length of the downward extension of the second guide cylinder 202. Through the matching design of the stirring device 300 and the guide shell 200, the flow rates of the materials in the first flow passage 111, the second flow passage 112 and the third flow passage 113 can be coordinated.

Further, the rotating speed of the upper layer stirring blade 302 is the same as or different from the rotating speed of the lower layer stirring blade 303. In one embodiment, the upper stirring vane 302 and the lower stirring vane 303 are both fixedly arranged on the rotating shaft 301 and keep the same with the rotating speed of the rotating shaft 301. In another embodiment, the rotation speed of the upper stirring vane 302 and the rotation speed of the upper stirring vane 302 may be adjusted separately, so that the rotation speeds of the two may be different, and the two may be adapted to more application scenarios.

Illustratively, the wiper plate 304 is of a serrated design, is non-continuous, and may form a roll angle when pressed down.

In one embodiment, as shown in fig. 2 and 4, the bottom of the lower stirring blade 303 is provided with a plurality of scraping plates 304, wherein the length of the scraping plates 304 is designed to match with the tapered cylinder at the lower part of the cylinder body 100, specifically, the length of the scraping plates at the central region (below the inner runner) is greater than that of the scraping plates at the edge region (below the outer runner) so that the scraping plates 304 are closer to the bottom of the cylinder body 100. The bottom of the scraping plate 304 is in a sawtooth shape, so that the scraping efficiency can be improved, the stress of the scraping plate can be reduced, and the service life of the scraping plate can be prolonged. The sand scraping plates are arranged in a discontinuous mode, namely gaps are formed among the sand scraping plates, so that the using amount of the sand scraping plates can be reduced while the sand scraping efficiency is guaranteed, and the cost is saved. When the sand scraping plate 304 scrapes the settled sand to bear force, the sand scraping plate can be pressed downwards to form a pressing inclination angle, so that the upward backflow of the settled sand at the bottom due to stirring is effectively reduced. When the force of the sand scraping plate is smaller, the formed pressing inclination angle is smaller, and when the force of the sand scraping plate is larger, the formed pressing inclination angle is larger. In one embodiment, the angle of the hold-down inclination is in the range of 0 ° to 45 °.

Illustratively, a starting end of the conveying device 400 is disposed at the sand outlet 103 to convey the settled sand discharged from the inside of the cylinder 100. In one embodiment, the conveying device 400 is a screw conveyer, and the screw conveyer is arranged obliquely, and the inclination angle of the screw conveyer relative to the horizontal plane is 20-40 degrees. Further, a draining tank 401, which illustratively includes a draining plate with a hole diameter of, for example, 1mm, is provided above the conveyor 400, and when the settled sand is conveyed to the position of the draining tank 401 by the conveyor 400, most of water can be drained through the draining plate, further reducing the water content of the settled sand. Further, the end of the conveying device 400 is also provided with a sand discharge port 402, and settled sand transported by the conveying device 400 can be discharged through the sand discharge port 402, so that the conveying device 400 is emptied. Further, the water drained at the draining tank 401 may flow back into the drum 100.

The working process of the sand setting device provided by the invention comprises the following steps: the driving device 305 drives the stirring device 300 to rotate, the material continuously enters the first flow channel 101 positioned at the inner side of the cylinder 100 from the feeding hole 101 on the cylinder 100, under the action of the stirring device 300, particularly the upper stirring blade 302, the sand is rotated clockwise and settled under the action of gravity, and then the sand flows to the second flow passage 102 through the overflow port on the first guide cylinder 201, under the action of the stirring device 300, the sand continues to rotate clockwise and settle under the action of gravity, and flows to the third flow channel 103 through the overflow port on the second guide cylinder 202, under the action of the stirring device 300, particularly the lower stirring blade 30, the stirring device rotates clockwise and settles sand under the action of gravity, the settled material is discharged from the discharge port 102, the settled sand accumulated at the bottom of the cylinder 100 is discharged from the sand outlet 103 to the conveying device 400 under the action of the sand scraping plate 304, most of the water is drained through a draining tank 401 on the conveyor 400 and then discharged from a sand outlet 402.

The present invention has been illustrated by the above embodiments, but it should be understood that the above embodiments are for illustrative and descriptive purposes only and are not intended to limit the invention to the scope of the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present invention, which variations and modifications are within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A sand setting device, comprising:

2. A sand setting device as claimed in claim 1, wherein an overflow port is provided on the guide shell to allow the material to overflow from an inner runner of the plurality of concentric runners to an outer runner of the plurality of concentric runners.

3. A sand setting device as claimed in claim 1, wherein the guide shell is fixed to the top of the cylinder.

4. A sand setting device as claimed in claim 1, comprising at least two guide cylinders to form three concentric circular flow passages in said cylinder, a first flow passage, a second flow passage and a third flow passage in sequence from inside to outside.

5. The sand setting device according to claim 1, wherein the stirring means comprises a rotating shaft, an upper stirring blade, a lower stirring blade and a sand scraping plate, wherein the upper stirring blade and the lower stirring blade are fixed on the rotating shaft, and the sand scraping plate is fixed at the bottom of the lower stirring blade.

6. A sand setting device as claimed in claim 5, wherein the lower layer agitating blade has a width larger than that of the upper layer agitating blade.

7. A sand screen as claimed in claim 5, wherein the scrapers are of a serrated design, are arranged non-continuously and are angled to form a press-down angle when pressed down.

8. A sand setting device as claimed in claim 1, wherein the barrel body comprises a cylindrical barrel at an upper portion and a tapered barrel located below the cylindrical barrel and connected to and communicating with the cylindrical barrel.

9. A sand setting device as claimed in claim 8, wherein the feed port is opened at the top of the barrel, the discharge port is opened at the side wall of the cylindrical barrel, and the sand outlet is opened at the bottom of the tapered barrel.

10. The sand setting device as claimed in claim 1, further comprising a transportation means configured to transport the set sand discharged from the sand outlet.