CN216320162U - Settling tank sewage discharging device - Google Patents

Abstract

A settling tank sewage discharging device belongs to the technical field of settling equipment. The device comprises a tank body (1) and a rotating main shaft (2), wherein the lower part of the rotating main shaft (2) is provided with a scraping blade (4) through a fixing component; the method is characterized in that: an anti-blocking chain (6) is fixed at the inner end of the scraping piece (4), and the anti-blocking chain (6) freely falls into the blanking port of the groove body (1); the lower end of the anti-blocking chain (6) is provided with a balancing weight (7); and a guide chain (9) is also fixed on the fixing component. According to the utility model, the anti-blocking chain of the cleaning component of the blanking port is added on the basis of the traditional settling tank, so that not only can the dirt slowly accumulated at the blanking port be cleaned, but also the dirt can not be accumulated at a dead angle of the settling tank due to free movement, and the smooth sewage discharge of the settling tank is ensured. The filter screen is established between overflow mouth and inlet, and what the filter screen was through the filter screen is the supernatant basically, can effectually prevent that turbid liquid from getting into the filter screen upper strata, guarantees that the overflow mouth flows out the clear liquid.

Description

Settling tank sewage discharging device

Technical Field

A settling tank sewage discharging device belongs to the technical field of settling equipment.

Background

The settling tank is gravity settling equipment for solid-liquid separation, and is also called a thickener or a clarifier. Is used to increase the concentration of the suspension and simultaneously obtain a clear solution. When the purpose of the settling separation is mainly to obtain a clarified liquid, the equipment used is called a clarifier; if the separation is aimed at obtaining a precipitate containing solid particles, the apparatus used is a thickener. No matter the effect is clarifier or thickener, the bottom of subsider can overstock dirt, leads to the drain to block up easily.

Chinese patent CN2020212404350 discloses a blowdown device at the bottom of a settling tank, which comprises a settling tank body, wherein the lower part of the settling tank body is connected with a first bracket, the utility model drives a rotating shaft to drive a screw shaft to rotate through a second motor, so as to effectively avoid blockage of a blowdown pipeline, and the rotating shaft drives a cross rod to rotate, so that a scraper scrapes dirt on the inner wall of the settling tank body, dirt adhesion is avoided, meanwhile, the first motor drives a connecting shaft to drive a screw blade to convey and discharge the dirt backwards, and through the structure, the dirt is smoothly discharged; through the conical hopper arranged on the inner wall of the settling tank, when the scraper scrapes, the conical hopper can reduce the mixing of lower dirt and upper clear liquid, and the probability of the upper clear liquid being polluted again is reduced. Solves the problems that the existing settling tank is easy to block the sewage discharge and the dirt is easy to be mixed with the upper clear liquid again to cause the dirt phenomenon. But dirt is still easy to accumulate on the pipe wall of the sewage discharge outlet, so that the blanking port is thinner and thinner, and the sewage discharge efficiency is lower. And the conical hopper can not only reduce the mixing between the dirt at the lower part and the supernatant liquid at the upper part, but also easily accumulate the dirt to block the connection between the conical hopper and the lower part. Therefore, a device capable of ensuring smooth sewage discharge of the settling tank is still lacking at present.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: overcomes the defects of the prior art and provides a settling tank sewage discharging device for ensuring smooth sewage discharging.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the sedimentation tank sewage discharge device comprises a tank body, wherein the bottom surface of the tank body is a conical surface with a downward convex middle part, and the bottom of the tank body is provided with a blanking port; a motor is fixed at the top of the tank body, the output end of the motor is connected with a rotating main shaft arranged on the axis of the tank body, a scraping blade is arranged at the lower part of the rotating main shaft through a fixing component and is attached to the bottom surface of the tank body; the method is characterized in that: an anti-blocking chain is fixed at the inner end of the scraping piece and freely falls into a blanking port of the groove body; the lower end of the anti-blocking chain is provided with a balancing weight; and a guide chain is also fixed on the fixing component.

According to the utility model, on the basis of the traditional settling tank, the anti-blocking chain of the cleaning component of the blanking port is added, the anti-blocking chain is only fixed for one section, and the other end of the anti-blocking chain freely falls, so that the dirt slowly accumulated at the blanking port can be cleaned, and the dirt cannot be accumulated at the dead angle of the self due to free movement. Ensuring smooth sewage discharge of the settling tank. The guide chain can guide sediment scraped by the scraping blade into the blanking port as soon as possible, and bottom surface hardening is effectively prevented.

Preferably, each group of fixing components consists of a transverse connecting rod and an inclined connecting rod, and the inner ends of the transverse connecting rod and the inclined connecting rod are fixed at the lower part of the rotating main shaft; the outer end of the transverse connecting rod is connected and fixed with the outer end of the scraping blade; the outer end of the inclined connecting rod is connected and fixed with the inner end of the scraping blade. The transverse connecting rod, the inclined connecting rod and the scraping blade form a stable triangular structure. The fixed structure of the scraping blade is reduced, and the stirring to the bottom of the settling tank in the rotating process is reduced.

Preferably, the scraping blades are at least four uniformly arranged. The number of the scraping blades is increased, so that the rotating speed can be reduced, and the stirring of the bottom of the settling tank in the rotating process is reduced.

Preferably, one end of the guide chain is fixed at the outer end of the transverse connecting rod, and the other end of the guide chain freely falls on the bottom surface of the groove body. The installation mode of the guide chains ensures that the guide chains act randomly, dead angles cannot exist, dirt cannot be accumulated on the guide chains, the bottom surface of the tank can be effectively prevented from hardening, and the guide chains are suitable for the condition of less sediments.

Preferably, the guide chain is coated with a wear-resistant coating.

Preferably, one end of the guide chain is fixed to an outer end of the transverse link, and the other end of the guide chain is fixed obliquely to an inner end of an oblique link which is located downstream in the rotational direction of the transverse link. The both ends of direction chain are fixed, can rotate the more powerful blanking mouth that pushes the deposit of in-process, and the more effective volume that reduces tank bottom surface deposit is fit for the more condition of deposit.

The top of the tank body is provided with an overflow port, the middle upper part of the tank body is provided with a liquid inlet, and a filter screen is arranged between the overflow port and the liquid inlet. The filter screen is established between overflow mouth and inlet for what pass through the filter screen is the supernatant basically, takes place to gather the jam on the filter screen seldom, when special circumstances leads to the precipitate of bottom to mix with the supernatant simultaneously, can effectually prevent that turbid liquid from getting into the filter screen upper strata, guarantees that the overflow mouth flows out the clear liquid.

The anti-blocking chain is made of stainless steel.

The balancing weight is spherical.

Compared with the prior art, the settling tank sewage draining device has the beneficial effects that: the transverse connecting rod, the inclined connecting rod and the scraping blade designed on the basis of the traditional settling tank form a stable triangular structure, so that the fixing structure of the scraping blade is reduced, the stirring to the bottom of the settling tank in the rotating process is reduced, the cleaning part of the blanking port is added with the anti-blocking chain, the anti-blocking chain is only fixed for one section, the other end of the anti-blocking chain freely falls, the dirt slowly accumulated at the blanking port can be cleaned, the dirt cannot be accumulated at dead corners of the anti-blocking chain due to the free movement, and the smooth pollution discharge of the settling tank is ensured. The guide chain provides two installation forms, and the guide chain can guide the sediment scraped by the scraper into the blanking port as soon as possible in the face of more or less sediment or thick or thin mixed liquid, so that the bottom surface is effectively prevented from being hardened. The filter screen is established between overflow mouth and inlet for what pass through the filter screen is the supernatant basically, takes place to gather the jam on the filter screen seldom, when special circumstances leads to the precipitate of bottom to mix with the supernatant simultaneously, can effectually prevent that turbid liquid from getting into the filter screen upper strata, guarantees that the overflow mouth flows out the clear liquid.

Drawings

Fig. 1 is a schematic view of a settler blowdown apparatus of the present invention.

Fig. 2 is a sectional top view at a-a of a settler blowdown apparatus of the utility model.

Wherein, 1, the trough body 2, the main shaft of rotation 3, the horizontal connecting rod 4, the doctor-bar 5, the oblique connecting rod 6, prevent stifled chain 7, balancing weight 8, auger 9, direction chain 10, inlet 11, filter screen 12, overflow mouth.

Detailed Description

Fig. 1 and 2 show a preferred embodiment of the present invention, and the present invention will be further described with reference to fig. 1 and 2.

With reference to figures 1, 2: the bottom surface of the settling tank body 1 is a conical surface with the middle part protruding downwards, and the bottom of the settling tank body 1 is provided with a blanking port; a motor is fixed on the top surface of the tank body 1, the output end of the motor is connected with a rotating main shaft 2 arranged on the axis of the tank body 1, six scraping blades 4 are fixedly arranged on the lower part of the rotating main shaft 2 through respective transverse connecting rods 3 and inclined connecting rods 5, and the inner ends of each group of transverse connecting rods 3 and inclined connecting rods 5 are fixed on the lower part of the rotating main shaft 2; the outer end of the transverse connecting rod 3 is connected with the outer end of the fixed scraping blade 4; the outer end of the inclined connecting rod 5 is connected with the inner end of the fixed scraping blade 4; the scraping piece 4 is attached to the bottom surface of the tank body 1; an anti-blocking chain 6 made of stainless steel is fixed at the inner end of each scraping piece 4, the anti-blocking chain 6 freely falls into the blanking port of the tank body 1, a spherical balancing weight 7 is arranged at the lower end of the anti-blocking chain 6, the anti-blocking chain 6 can timely clean the blanking port in the rotating process, and sediment is guaranteed to be smoothly discharged; one end of a guide chain 9 coated with wear-resistant coating is fixed at the outer end of the transverse connecting rod 3, and the other end of the guide chain 9 is obliquely fixed at the inner end of an inclined connecting rod 5 at the downstream of the transverse connecting rod 3 in the rotating direction, so that sediments on the bottom surface are pushed to the blanking port in time. The filter screen 11 sets up between overflow mouth 12 and inlet 10, and the mesh of the filter screen 11 of adoption is wide infundibulate down, does benefit to the solid of top and sinks, can effectively prevent again to mix and gush on the liquid, guarantees the clarity of supernatant.

Other embodiments are as follows: the basic structure is the same as that described above and shown in fig. 1 and 2, except that: one end of the guide chain 9 is fixed at the outer end of the transverse connecting rod 3, and the other end of the guide chain 9 freely falls on the bottom surface of the groove body 1. The four scraping blades 4 are uniformly arranged.

The working process is as follows: when using, leading-in sewage from inlet 10 to subsiding the inside solid-liquid separation that carries on of cell body 1, the dirt is downward precipitation, when the blowdown, the dirt is discharged from the drain of subsiding cell body 1 lower extreme, rotate main shaft 2 through motor drive and rotate, make doctor-bar 4 scrape the bottom surface of cell body 1, the dirt that subsides inserts the blanking mouth under doctor-bar 4 and guide chain 9's effect, the blanking mouth has been cleared up in the timely random motion of rotatory in-process anti-blocking chain 6, guarantee that the blanking mouth is unobstructed, the sediment is discharged smoothly, can not take place the jam.

The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.

Claims (10)

1. The sedimentation tank sewage discharge device comprises a tank body (1), wherein a blanking port is formed at the bottom of the tank body (1); a motor is fixed at the top of the tank body (1), the output end of the motor is connected with a rotating main shaft (2) arranged on the axis of the tank body (1), a scraping blade (4) is arranged at the lower part of the rotating main shaft (2) through a fixing component, and the scraping blade (4) is attached to the bottom surface of the tank body (1); the method is characterized in that: an anti-blocking chain (6) is fixed at the inner end of the scraping piece (4), and the anti-blocking chain (6) freely falls into the blanking port of the groove body (1); the lower end of the anti-blocking chain (6) is provided with a balancing weight (7); and a guide chain (9) is also fixed on the fixing component.

2. The settler blowdown apparatus as claimed in claim 1, wherein: each group of fixing components consists of a transverse connecting rod (3) and an inclined connecting rod (5), and the inner ends of the transverse connecting rod (3) and the inclined connecting rod (5) are fixed at the lower part of the rotating main shaft (2); the outer end of the transverse connecting rod (3) is connected and fixed with the outer end of the scraping blade (4); the outer end of the inclined connecting rod (5) is connected and fixed with the inner end of the scraping blade (4).

3. The settler blowdown arrangement as claimed in claim 1 or claim 2, wherein: the scraping blades (4) are at least four uniformly arranged.

4. The settler blowdown apparatus as claimed in claim 2, wherein: one end of the guide chain (9) is fixed at the outer end of the transverse connecting rod (3), and the other end of the guide chain (9) freely falls on the bottom surface of the groove body (1).

5. The settler blowdown apparatus as claimed in claim 2, wherein: one end of the guide chain (9) is fixed at the outer end of the transverse connecting rod (3), and the other end of the guide chain (9) is obliquely fixed at the inner end of one oblique connecting rod (5) at the downstream of the transverse connecting rod (3) in the rotating direction.

6. The settler blowdown arrangement as claimed in claim 2 or claim 4, wherein: the guide chain (9) is coated with a wear-resistant coating.

7. The settler blowdown apparatus as claimed in claim 1, wherein: the top of the tank body (1) is provided with an overflow port, the middle upper part of the tank body (1) is provided with a liquid inlet, and a filter screen (11) is arranged between the overflow port (12) and the liquid inlet (10).

8. The settler blowdown apparatus as claimed in claim 1, wherein: the bottom surface of the tank body (1) is conical with the middle part protruding downwards.

9. The settler blowdown apparatus as claimed in claim 1, wherein: the anti-blocking chain (6) is made of stainless steel.

10. The settler blowdown apparatus as claimed in claim 1, wherein: the balancing weight (7) is spherical.

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