CN210933930U

CN210933930U - Stirring device for rotational flow grit chamber

Info

Publication number: CN210933930U
Application number: CN201921748572.2U
Authority: CN
Inventors: 孙浩; 张勤昊; 薛腾
Original assignee: Gezhouba Water Binzhou Co ltd
Current assignee: Gezhouba Water Binzhou Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-07-07
Anticipated expiration: 2029-10-18

Abstract

The utility model provides a whirl is agitating unit for grit chamber, contain sand sewage flow in the desilting district from the water inlet, power device drive spline housing rotates, because spline housing passes through spline and agitator shaft connection, therefore the (mixing) shaft rotates, the (mixing) shaft drives stirring vane rotation, because be provided with the carousel on the (mixing) shaft, the bulb of its lower extreme is when following the carousel rotation, the bulb is constantly reciprocated by the boss drive that sets up on the fixed disk, thereby the carousel drives the (mixing) shaft and utilizes the spline to move up and down along the axial in the spline housing, stirring vane also constantly reciprocates when rotating, thereby the whirl of water in the desilting district not only has the horizontal direction, it also has the sand grain of up-and-down direction, thereby can ensure that the outside separation under the whirl effect in sewage, finally fall into the sand hopper, the effect of degritting in the sewage.

Description

Stirring device for rotational flow grit chamber

Technical Field

The utility model relates to a sewage treatment device technical field, concretely relates to whirl agitating unit for grit chamber.

Background

In sewage treatment, the rotational flow grit chamber is a grit device which controls the flow state and the flow rate of water flow by using mechanical force, accelerates the precipitation of sand particles and brings away organic matters along with the water flow. The sand-containing sewage enters the sand settling area from the water inlet along the tangential direction, the sewage is driven to flow spirally by the rotating stirring blades in the sand settling area, the separation of sand grains and water is promoted, the sand grains with larger relative density are thrown to the pool wall due to different centrifugal forces, the sand grains sink into the sand hopper at the bottom under the action of gravity, and finally, the sand in the sand hopper is pumped out by using the sand discharge pump. However, the stirring blades of the stirring device of the traditional rotational flow grit chamber can only rotate along the circumferential direction, the generated rotational flow is in the horizontal direction and cannot generate rotational flow in the longitudinal direction, and therefore the sand-water separation effect is not ideal.

Disclosure of Invention

The utility model discloses an overcome not enough of above technique, provide a (mixing) shaft can the up-and-down motion make stirring vane produce the whirl agitating unit for grit chamber of upper and lower direction whirl when the stirring.

The utility model overcomes the technical scheme that its technical problem adopted is:

the utility model provides a whirl is agitating unit for grit chamber, includes the grit chamber, is equipped with the grit district in the grit chamber, has the sand hopper under the grit district, and the grit chamber top is provided with the support, is hollow tubulose (mixing) shaft, the lower extreme of (mixing) shaft is arranged in the grit district, and the (mixing) shaft lower extreme is provided with a plurality of stirring vane along the circumferencial direction interval, and the water inlet sets up on the grit chamber with the tangent direction in grit district, and the grit chamber other end is provided with the delivery port that parallels with the water inlet, and the delivery port is linked together with the grit district, still includes:

the stirring shaft penetrates through the center of the fixed disc, and a plurality of bosses protruding upwards are uniformly arranged at intervals on the upper end of the fixed disc along the circumferential direction;

the rotating disc is coaxially arranged on the stirring shaft, the lower end of the rotating disc is provided with a spherical ball head, and the ball head is positioned in a groove formed between every two adjacent bosses;

the support is mounted on the support, a spline sleeve is rotatably mounted on the support through a bearing II, a spline hole is formed in the spline sleeve, a spline is arranged at the upper end of the stirring shaft, and the spline sleeve is inserted on the spline corresponding to the stirring shaft through the spline hole; and

and the power device is arranged on the bracket and used for driving the spline housing to rotate.

Furthermore, the power device comprises a speed reducer arranged on the support, a motor in transmission connection with an input shaft of the speed reducer, a chain wheel II arranged on an output shaft of the speed reducer and a chain wheel I arranged on the spline housing, wherein the chain wheel I and the chain wheel II are in transmission connection through a chain.

Furthermore, the sand-absorbing device also comprises a sand-absorbing pipe vertically inserted in the stirring shaft, the bottom of the sand-absorbing pipe is positioned in the sand hopper, and the upper end of the sand-absorbing pipe is connected with the sand-discharging pump.

The utility model has the advantages that: the sand-containing sewage flows into the sand setting area from the water inlet, the power device drives the spline housing to rotate, because the spline housing is connected with the stirring shaft through the spline, the stirring shaft rotates, the stirring shaft drives the stirring blades to rotate, because the stirring shaft is provided with the rotary table, the ball head at the lower end of the stirring shaft is driven by the boss arranged on the fixed disc to move up and down continuously when the stirring shaft rotates along the shaft, the rotary table drives the stirring shaft to move up and down along the shaft in the spline housing by utilizing the spline, the stirring blades also move up and down continuously when rotating, so that the rotational flow of the water in the sand setting area has the horizontal direction and also has the vertical direction, thereby the sand grains in the sewage can be ensured to be separated outwards under the rotational flow effect, and finally fall into a sand hopper, and.

Drawings

Fig. 1 is a schematic view of a front view cross-sectional structure of the present invention;

fig. 2 is a schematic top view of the cross-sectional structure of the present invention;

fig. 3 is a schematic top view of the fixing plate of the present invention;

in the figure, 1, a grit chamber 2, a grit zone 3, a sand hopper 4, a stirring shaft 5, stirring blades 6, a sand suction pipe 7, a support 8, a bearing I9, a fixed disc 10, a rotary disc 11, a ball head 12, a sand discharge pump 13, a support 14, a bearing II 15, a spline 16, a spline sleeve 17, a chain wheel I18, a speed reducer 19, a motor 20, a chain wheel II 21, a chain 22, a water inlet 23, a water outlet 24 and a boss are arranged.

Detailed Description

The present invention will be further explained with reference to fig. 1, fig. 2 and fig. 3.

The utility model provides a whirl agitating unit for grit chamber, including grit chamber 1, be equipped with sand setting district 2 in the grit chamber 1, sand hopper 3 has under sand setting district 2, grit chamber 1 top is provided with support 7, be hollow tubulose (mixing) shaft 4, the lower extreme of (mixing) shaft 4 is arranged in sand setting district 2, the 4 lower extreme of (mixing) shaft is provided with a plurality of stirring vane 5 along the circumferencial direction interval, the water inlet 22 sets up on grit chamber 1 with the direction tangent with sand setting district 2, the 1 other end of grit chamber is provided with the delivery port 23 that parallels with water inlet 22, delivery port 23 is linked together with sand setting district 2, still include: the fixed disc 9 is rotatably arranged on the support 7 through a bearing I8, the stirring shaft 4 penetrates through the central part of the fixed disc 9, and a plurality of bosses 24 protruding upwards are uniformly arranged at intervals on the upper end of the fixed disc 9 along the circumferential direction; the rotating disc 10 is coaxially arranged on the stirring shaft 4, the lower end of the rotating disc 10 is provided with a spherical ball head 11, and the ball head 11 is positioned in a groove formed between every two adjacent bosses 24; the support 13 is installed on the support 7, the spline housing 16 is rotatably installed on the support 13 through a bearing II 14, a spline hole is formed in the spline housing 16, a spline 15 is arranged at the upper end of the stirring shaft 4, and the spline housing 16 is inserted on the spline 15 corresponding to the stirring shaft 4 through the spline hole; and the power device is arranged on the bracket 13 and is used for driving the spline housing 16 to rotate. The sand-containing sewage flows into the sand settling area 2 from the water inlet 22, the power device drives the spline housing 16 to rotate, the spline housing 16 is connected with the stirring shaft 4 through the spline 15, the stirring shaft 4 rotates, the stirring shaft 4 drives the stirring blades 5 to rotate, the stirring shaft 4 is provided with the rotary table 10, the ball head 11 at the lower end of the stirring shaft is continuously driven by the boss 24 arranged on the fixed disc 9 to move up and down when rotating along with the rotary table 10, the rotary table 10 drives the stirring shaft 4 to move up and down along the shaft in the spline housing 16 by utilizing the spline 15, the stirring blades 5 are also continuously moved up and down when rotating, so that the rotational flow of the water in the sand settling area 2 is not only in the horizontal direction but also in the vertical direction, thereby ensuring that sand grains in the sewage are separated outwards under the rotational flow effect, and finally fall into the sand hopper 3, and improving the sand removal. The sewage after sand removal flows out from the water outlet 23.

The power device can be in a structure comprising a speed reducer 18 arranged on the bracket 13, a motor 19 in transmission connection with an input shaft of the speed reducer 18, a chain wheel II 20 arranged on an output shaft of the speed reducer 18 and a chain wheel I17 arranged on the spline housing 16, wherein the chain wheel I17 is in transmission connection with the chain wheel II 20 through a chain 21. The motor 19 rotates and drives the chain wheel II 20 to rotate after the speed reducer 18 reduces and amplifies the torque, and the chain wheel II 20 drives the chain wheel I17 to rotate through the chain 21, so that the purpose of driving the spline housing 16 to rotate is achieved.

Preferably, the sand-absorbing device also comprises a sand-absorbing pipe 6 vertically inserted into the stirring shaft 4, the bottom of the sand-absorbing pipe 6 is positioned in the sand hopper 3, and the upper end of the sand-absorbing pipe 6 is connected with a sand-discharging pump 12. This patent adopts sediment outflow pump 12 to utilize and inhales sand pipe 6 and takes out the sand grain in with sand hopper 3, also can utilize the structure that lets in compressed air that traditional whirl grit chamber adopted and utilize to inhale sand pipe 6 and take out sand under the negative pressure certainly.

Claims

1. The utility model provides a whirl agitating unit for grit chamber, includes grit chamber (1), is equipped with sand setting district (2) in grit chamber (1), has sand hopper (3) under sand setting district (2), and grit chamber (1) top is provided with support (7), is hollow tubulose (mixing) shaft (4), the lower extreme of (mixing) shaft (4) is located sand setting district (2), and (mixing) shaft (4) lower extreme is provided with a plurality of stirring vane (5) along the circumferencial direction interval, and water inlet (22) set up on grit chamber (1) with the tangent direction in sand setting district (2), and grit chamber (1) other end is provided with delivery port (23) that parallel with water inlet (22), and delivery port (23) are linked together with sand setting district (2), its characterized in that still includes:

the fixed disc (9) is rotatably arranged on the support (7) through a bearing I (8), the stirring shaft (4) penetrates through the center part of the fixed disc (9), and a plurality of bosses (24) protruding upwards are uniformly arranged at intervals along the circumferential direction at the upper end of the fixed disc (9);

the rotating disc (10) is coaxially arranged on the stirring shaft (4), the lower end of the rotating disc (10) is provided with a spherical ball head (11), and the ball head (11) is positioned in a groove formed between every two adjacent bosses (24);

the support (13) is installed on the support (7), the spline housing (16) is rotatably installed on the support (13) through a bearing II (14), a spline hole is formed in the spline housing (16), a spline (15) is arranged at the upper end of the stirring shaft (4), and the spline housing (16) is inserted in the spline (15) corresponding to the stirring shaft (4) through the spline hole; and

and the power device is arranged on the bracket (13) and is used for driving the spline housing (16) to rotate.

2. The stirring device for a cyclone grit chamber as claimed in claim 1, wherein: the power device comprises a speed reducer (18) arranged on the support (13), a motor (19) in transmission connection with an input shaft of the speed reducer (18), a chain wheel II (20) arranged on an output shaft of the speed reducer (18) and a chain wheel I (17) arranged on the spline housing (16), wherein the chain wheel I (17) is in transmission connection with the chain wheel II (20) through a chain (21).

3. The stirring device for a cyclone grit chamber as claimed in claim 1, wherein: the sand-absorbing device is characterized by further comprising a sand-absorbing pipe (6) vertically inserted into the stirring shaft (4), the bottom of the sand-absorbing pipe (6) is positioned in the sand hopper (3), and the upper end of the sand-absorbing pipe (6) is connected with the sand-discharging pump (12).