CN210874258U

CN210874258U - Mud scraper for sedimentation tank

Info

Publication number: CN210874258U
Application number: CN201921426189.5U
Authority: CN
Inventors: 晏长成
Original assignee: Shanghai Tongxin Environmental Technology Co ltd
Current assignee: Shanghai Tongxin Environmental Technology Co ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-06-30
Anticipated expiration: 2029-08-29

Abstract

The utility model belongs to the technical field of sewage treatment. The existing mud scraper for the sedimentation tank has poor flexibility. Aiming at the problems in the prior art, the utility model discloses a mud scraper for a sedimentation tank, which comprises a central rotary drum driven by a driving mechanism, a connecting disc fixedly arranged at the lower part of the central rotary drum, a scraping arm hinged with the connecting disc, an adjusting structure and a scum scraper device; a water inlet cavity communicated with the water inlet pipe is arranged in the central rotary drum, and a water inlet through hole penetrating through the upper part of the wall of the central rotary drum is arranged; the scraping arms are obliquely arranged, the inclination angles of the scraping arms and the horizontal plane are the same as the inclination angle of the bottom surface of the sedimentation tank, and a plurality of mud scraping plates which are uniformly distributed at intervals along the length direction of the scraping arms are arranged below the scraping arms; the adjusting structure comprises an adjusting cylinder and an adjusting rod which is in threaded connection in the axis direction of the adjusting cylinder, one end of the adjusting cylinder, which is far away from the adjusting rod, is hinged to the scraping arm, and one end of the adjusting rod, which is far away from the adjusting cylinder, is hinged to the central rotating cylinder. The utility model discloses adaptable in the sedimentation tank of various different bottom surface slopes, the flexibility is high.

Description

Mud scraper for sedimentation tank

Technical Field

The utility model relates to a mud scraper, concretely relates to mud scraper is used to sedimentation tank belongs to sewage treatment technical field.

Background

A mud scraper is a machine for cleaning mud from a river channel, and is used in a circular sedimentation tank with a larger diameter in municipal sewage treatment plants, tap water plants and industrial wastewater treatment.

The tradition is used for mud scraper of the peripheral sedimentation tank of going out water of central intaking, as shown in figure 1, include the mud scraping arm 03 that drives pivoted main shaft 01, link firmly with the main shaft through connecting rod 02, set up along the mud scraping plate of mud scraping arm length direction and be used for collecting the dross scraper blade of liquid level dross by the driving piece, wherein, in order to improve the mud scraping effect, the mud scraping arm sets up the slope structure that suits with the sedimentation tank bottom surface slope. The inclination angle of the mud scraping arm of the mud scraper with the structure is usually fixed and cannot be adjusted, the requirements of various sedimentation tanks with different bottom surface gradients cannot be met, and the flexibility is poor.

SUMMERY OF THE UTILITY MODEL

To the problem among the prior art, the utility model provides a mud scraper is used to sedimentation tank should scrape the mud scraper and can adjust the inclination of scraping the arm to make it can be adapted to various sedimentation tanks that have different bottom surface slopes, the flexibility is high.

In order to realize the technical purpose, the technical proposal of the utility model is that:

a mud scraper for a sedimentation tank is characterized in that the mud scraper comprises a central rotary drum, a connecting disc, a scraping arm, an adjusting structure and a scum scraper device; the central rotary drum is vertically arranged at the central position of the sedimentation tank, is driven by a driving mechanism to rotate, is internally provided with a water inlet cavity communicated with a water inlet pipe, and is provided with a through water inlet through hole at the upper part of the wall of the central rotary drum; the connecting disc is fixedly arranged at the lower part of the central drum, grooves are formed in two opposite sides of the connecting disc, and scraping arms are hinged in the grooves; the scraping arms are obliquely arranged, the inclination angles of the scraping arms and the horizontal plane are the same as the inclination angle of the bottom surface of the sedimentation tank, and a plurality of mud scraping plates which are uniformly distributed at intervals along the length direction of the scraping arms are arranged below the scraping arms; the adjusting structure comprises an adjusting cylinder and an adjusting rod in threaded connection in the axis direction of the adjusting cylinder, one end of the adjusting cylinder, far away from the adjusting rod, is hinged with the scraping arm, and one end of the adjusting rod, far away from the adjusting cylinder, is hinged with the central rotating cylinder; the dross scraper blade device includes dross scraper blade, dross rake board, sediment fill and scum pipe, and dross scraper blade level sets up and is located sedimentation tank upper portion, and dross scraper blade one end links to each other with central rotary drum, and the other end links to each other with the dross rake board, and the height of dross rake board is the same with the dross scraper blade, and dross rake board below is equipped with the sediment fill that bottom and scum pipe are linked together. The utility model discloses simple structure can adjust the contained angle of scraping between arm and the central pivot through setting up the regulation structure to make this mud scraper can adapt to various sedimentation tanks that have different bottom surface slopes, the flexibility is high.

As the preferred scheme, the mud scraper also comprises a small mud scraper, and the small mud scraper is fixedly connected with the connecting disc and is positioned in the mud collection cavity. The small mud scraping plate is beneficial to the sludge discharge of the mud collecting cavity, so that the blockage of the mud collecting cavity can be effectively prevented.

Preferably, the mud scraper further comprises a buffer cylinder, wherein the buffer cylinder is sleeved on the outer side of the upper part of the central rotary cylinder and covers the water inlet through hole. Through setting up the buffer cylinder, can make the intaking that overflows from central rotating shaft upper portion in the buffer cylinder radiation flow direction sedimentation tank, weaken the impact that the rivers caused in to the pond of intaking, thereby be favorable to subsiding of mud and do benefit to mud scraper work efficiency's promotion.

As a further preferred scheme, the mud scraper further comprises a stirring shaft driven by a motor to rotate, the stirring shaft is positioned in the buffer cylinder, and stirring blades longitudinally distributed at intervals along the stirring shaft are arranged on the stirring shaft. Through set up the (mixing) shaft in the buffer cylinder, can make the influent that overflows from central rotating shaft upper portion flow to the sedimentation tank in the buffer cylinder after with the flocculating agent intensive mixing who adds to the buffer cylinder again, thereby the sedimentation rate of acceleration mud further improves the work efficiency of mud scraper.

As a preferred scheme, the slag hopper is connected with the water collecting tank through a connecting pipeline, and an electromagnetic valve for switching on and off the connecting pipeline is arranged on the connecting pipeline. So set up the dross that can make the water among the water catch bowl get into the sediment fill and erode in the sediment fill, help the discharge of dross and can prevent that the sediment fill from taking place to block up.

Drawings

FIG. 1 is a schematic structural view of a conventional mud scraper;

fig. 2 is a schematic structural diagram of the present invention;

reference numerals:

01. main shaft 02, connecting rod 03, mud scraping arm

10. Sedimentation tank 11, water collecting tank 12, sludge collecting cavity 13, sludge discharge pipe 20, central drum 21, water inlet cavity 22, water inlet through hole 30, buffer cylinder 40, connecting disc 50, scraping arm 60, small sludge scraping plate 70, sludge scraping plate 81, adjusting cylinder 82, adjusting rod 91, scum scraping plate 92, scum scraping plate 93, scum bucket 94, slag discharge pipe 95, electromagnetic valve 101, motor 102, stirring shaft

Detailed Description

With reference to fig. 2, a specific embodiment of the present invention is described in detail, but the present invention is not limited to the claims.

As shown in fig. 2, a mud scraper for a sedimentation tank, wherein a water collecting tank 11 communicated with a water outlet pipe is arranged at the upper part of the sedimentation tank 10, the bottom surface of the sedimentation tank 10 is conical, a mud collecting cavity 12 communicated with a mud discharging pipe 13 is arranged at the bottom of the sedimentation tank 10, and the mud scraper comprises a central rotary drum 20, a buffer cylinder 30, a connecting disc 40, a scraping arm 50, a small mud scraping plate 60, an adjusting structure and a scum scraper device; the central rotating drum 20 is vertically arranged at the central position of the sedimentation tank 10 through a bearing, the central rotating drum 20 is driven by a driving mechanism to rotate, a water inlet cavity 21 communicated with a water inlet pipe is arranged in the central rotating drum 20, a water inlet through hole 22 penetrating through the upper part of the wall of the central rotating drum 20 is arranged on the upper part of the central rotating drum 20, a buffer drum 30 is sleeved on the outer side of the upper part of the central rotating drum 20, and the water inlet through hole 22 is covered in the buffer; the connecting disc 40 is fixedly arranged at the lower part of the central drum 20, grooves are formed in two opposite sides of the connecting disc 40, and scraping arms 50 are hinged in the grooves; the scraping arms 50 are obliquely arranged, the inclination angles of the scraping arms 50 and the horizontal plane are the same as the inclination angle of the bottom surface of the sedimentation tank 10, and a plurality of mud scraping plates 70 which are uniformly distributed at intervals along the length direction of the scraping arms 50 are arranged below the scraping arms 50; the small mud scraping plate 60 is fixedly connected with the connecting disc 40 and is positioned in the mud collecting cavity 12; the adjusting structure comprises an adjusting cylinder 81 and an adjusting rod 82 which is in threaded connection with the axis direction of the adjusting cylinder 81, one end of the adjusting cylinder 81, which is far away from the adjusting rod 82, is hinged with the scraping arm 50, and one end of the adjusting rod 82, which is far away from the adjusting cylinder 81, is hinged with the central rotating cylinder 20; the dross scraper means includes dross scraper blade 91, dross rake 92, sediment fill 93 and scum pipe 94, dross scraper blade 91 level sets up and is located sedimentation tank 10 upper portion, dross scraper blade 91 one end links to each other with central rotary drum 20, the other end links to each other with dross rake 92, dross rake 92's height is the same with dross scraper blade 91, dross rake 92 below is equipped with the sediment fill 93 that bottom and scum pipe 94 are linked together, sediment fill 93 links to each other with water catch bowl 11 through connecting tube, the last solenoid valve 95 that is used for the break-make connecting tube that is provided with of connecting tube.

Wherein, in order to accelerate the sedimentation velocity of the sludge in the sedimentation tank 10, the mud scraper is further provided with a stirring device, the stirring device comprises a motor 101 arranged on the working bridge and a stirring shaft 102 driven by the motor to rotate, the stirring shaft is positioned in the buffer cylinder 30, and stirring blades longitudinally distributed at intervals along the stirring shaft are arranged on the stirring shaft.

To sum up, the utility model has the advantages of it is following:

1. the utility model discloses simple structure can adjust the contained angle of scraping between arm 50 and the central pivot through setting up the regulation structure to make this mud scraper can adapt to various sedimentation tanks 10 that have different bottom surface slopes, the flexibility is high.

2. The sedimentation tank 10 generally adopts a standing sedimentation mode to settle sludge, is influenced by water inflow impact, and has slow sludge sedimentation speed, which reduces the working efficiency of the mud scraper. The utility model discloses a set up buffer cylinder 30 and can make the inflow that overflows from central pivot upper portion in buffer cylinder 30 radiation flow to sedimentation tank 10, weaken the impact that the inflow caused to rivers in the pond, thereby be favorable to subsiding of mud to do benefit to mud scraper work efficiency's promotion. Through set up the (mixing) shaft in buffer cylinder 30, can make the influent that overflows from central rotating shaft upper portion flow to sedimentation tank 10 in with the flocculating agent intensive mixing back that adds to the buffer cylinder 30 in buffer cylinder 30 again in, thereby the sedimentation rate of acceleration mud further improves the work efficiency of mud scraper.

3. The utility model discloses a set up connecting tube and solenoid valve 95 and can make the water among the water catch bowl 11 get into the dross fill 93 and erode the dross in the dross fill 93, help the discharge of dross and can prevent that the dross fill 93 from taking place to block up.

It should be understood that the above detailed description of the present invention is only for illustrative purposes and is not limited to the technical solutions described in the embodiments of the present invention. It will be understood by those skilled in the art that the present invention may be modified and equivalents may be substituted to achieve the same technical effects; as long as the use requirement is satisfied, the utility model is within the protection scope.

Claims

1. A mud scraper for a sedimentation tank is characterized in that the mud scraper comprises a central rotary drum, a connecting disc, a scraping arm, an adjusting structure and a scum scraper device; the central rotary drum is vertically arranged at the central position of the sedimentation tank, is driven by a driving mechanism to rotate, is internally provided with a water inlet cavity communicated with a water inlet pipe, and is provided with a through water inlet through hole at the upper part of the wall of the central rotary drum; the connecting disc is fixedly arranged at the lower part of the central drum, grooves are formed in two opposite sides of the connecting disc, and scraping arms are hinged in the grooves; the scraping arms are obliquely arranged, the inclination angles of the scraping arms and the horizontal plane are the same as the inclination angle of the bottom surface of the sedimentation tank, and a plurality of mud scraping plates which are uniformly distributed at intervals along the length direction of the scraping arms are arranged below the scraping arms; the adjusting structure comprises an adjusting cylinder and an adjusting rod in threaded connection in the axis direction of the adjusting cylinder, one end of the adjusting cylinder, far away from the adjusting rod, is hinged with the scraping arm, and one end of the adjusting rod, far away from the adjusting cylinder, is hinged with the central rotating cylinder; the dross scraper blade device includes dross scraper blade, dross rake board, sediment fill and scum pipe, and dross scraper blade level sets up and is located sedimentation tank upper portion, and dross scraper blade one end links to each other with central rotary drum, and the other end links to each other with the dross rake board, and the height of dross rake board is the same with the dross scraper blade, and dross rake board below is equipped with the sediment fill that bottom and scum pipe are linked together.

2. The mud scraper for a sedimentation tank of claim 1, further comprising a small scraper plate fixedly connected to the connecting disc and located in the mud collection chamber.

3. The mud scraper as claimed in claim 1, further comprising a buffer cylinder which is disposed outside the upper portion of the central drum and covers the water inlet hole.

4. The mud scraper for the sedimentation tank as claimed in claim 3, further comprising a stirring shaft driven by the motor to rotate, wherein the stirring shaft is located in the buffer cylinder, and stirring blades are provided on the stirring shaft at intervals along the longitudinal direction of the stirring shaft.

5. The mud scraper as claimed in claim 1, wherein the slag hopper is connected to the water collecting tank through a connecting pipe, and the connecting pipe is provided with an electromagnetic valve for opening and closing the connecting pipe.