CN206081764U

CN206081764U - Gravity thickening device

Info

Publication number: CN206081764U
Application number: CN201620883809.8U
Authority: CN
Inventors: 卓宇轩; 高科; 左丽; 魏稳; 吴东江
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-16
Filing date: 2016-08-16
Publication date: 2017-04-12
Anticipated expiration: 2026-08-16

Abstract

The utility model discloses a gravity thickening device, including one -level settling zone, second grade settling zone, inlet tube, the contained angle alpha of lateral wall and horizontal plane is greater than 0 and less than or equal to 90 under the one -level settling zone, second grade settling zone top links to each other with one -level settling zone bottom, and the lateral wall is greater than 90 with the contained angle beta of horizontal plane on the second grade settling zone, and second grade settling zone bottom is provided with mud pipe 6. Second grade settling zone open -top area be not more than the one -level settling zone the biggest cross sectional area 12, the contained angle delta of lateral wall and horizontal plane is greater than 0 and be lighter than 180 under the second grade settling zone, the utility model discloses can eliminate in the one -level settling zone vortex to the influence in second grade settling zone flow field, effectively avoid forming the vortex in the second grade settling zone, improve the settling efficiency of solid particle thing, mud can not spill over the second grade settling zone, and system's operation is stable.

Description

A kind of gravity concentration device

Technical field

This utility model is related to a kind of gravity concentration device, and in particular to a kind of method of utilization gravitational settling carries out liquid The device of concentration.

Background technology

Current gravitational settling device mainly has rectangular sedimentation tank, vertical sedimentation basin and radical sedimentation basin etc., this It is low that a little settlers all have a deposition efficiency, sewage inferior separating effect, and during spoil disposal, bottom disturbance is strong, and system is unstable etc. asks Topic.

In the prior art, Chinese patent literature CN102078712A discloses a kind of equipment for separating liquid from solid, by institute State sedimentation water tank bottom and heavy mud groove is set, and the intermittent duty with reference to the heavy mud groove bottom auger conveyor forms mud Envelope, on the one hand reduces the moisture content of mud extraction by mudding, on the other hand prevents augur to disturb adsorption liquid It is dynamic, it is to avoid the phenomenon that settled solid particulate matter is floated under the disturbance of auger conveyor again.In the art, it is described heavy Mud groove is 90 ° with the angle of horizontal plane, causes the heavy mud groove volume relatively small, so when high concentrtion liquid is processed, Gu Body particulate matter easily overflows heavy mud groove, and in the presence of gravity with frictional force is closely attached to the sedimentation water tank bottom, During actually used, above-mentioned adhesive layer does not decline with the discontinuous operation of the auger conveyor, has a strong impact on the solid The stability of segregation apparatuss.In addition, when inflow becomes big suddenly, there is effect of Fluid Pulsation or turbulence state in sedimentation tank, suspend Thing effectively cannot be precipitated, and affect sedimentation effect.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, and then offer one kind can avoid spoil disposal or flow prominent When so increasing, the gravity concentration device that system is unstable is caused.

The technical scheme of gravity concentration device described in the utility model is：

A kind of gravity concentration device includes：One-level settling zone 2, two-stage precipitation area 5, water inlet pipe 7, under the one-level settling zone Side wall 3 is more than 0 ° and is less than or equal to 90 ° with the angle α of horizontal plane；With the one-level settling zone 2 at the top of the two-stage precipitation area 5 Bottom is connected；5 bottom of two-stage precipitation area is provided with discharge pipeline 6, and discharge pipeline 6 can connect with the equipment such as slush pump or conveying worm Connect, the solid particulate matter for precipitating is discharged so as to pass through discharge pipeline 6；The top of one-level settling zone 2 is provided with outlet pipe 1, described Two-stage precipitation area upper side wall 4 is more than 90 ° with the angle β of horizontal plane.

Used as improvement, one-level settling zone lower wall 3 is 45 ° with the angle α of horizontal plane.

Used as improvement, 5 open top area of the two-stage precipitation area is not more than 2 maximum cross-section area of the one-level settling zone 1/2.

Used as improvement, 5 open top area of the two-stage precipitation area is not more than 2 maximum cross-section area of the one-level settling zone 1/4.

Used as improvement, the volume in the two-stage precipitation area 5 is 1/50-5 times of 2 volume of one-level settling zone.

Used as improvement, two-stage precipitation area upper side wall 4 is 135 ° with the angle β of horizontal plane.

Used as improvement, two-stage precipitation area lower wall is more than 0 ° and is less than 180 ° with the angle δ of horizontal plane.

Used as improvement, two-stage precipitation area lower wall is more than 0 ° and is less than 90 ° with the angle δ of horizontal plane.

Used as improvement, two-stage precipitation area lower wall is 45 ° with the angle δ of horizontal plane.

Used as improvement, the water inlet pipe 7 is arranged at the top of one-level settling zone 2.

7 outlet one end of the water inlet pipe is passed through 5 top open part of two-stage precipitation area；The water inlet pipe 7 and two-stage precipitation 5 top open part of area apart from S less than two-stage precipitation area height H 1/2；The outlet of the water inlet pipe 7 can be heavy at two grades Above 5 top open part of shallow lake area, it is also possible to below 5 top open part of two-stage precipitation area.

The beneficial effect of gravity concentration device of the present utility model is：

(1) the two-stage precipitation area open top area can disappear less than the 1/2 of the one-level settling zone open top area Except the impact being vortexed in one-level settling zone to two-stage precipitation area flow field, it is prevented effectively from and vortex is formed in the two-stage precipitation area, Improve the settling efficiency of solid particulate matter；

(2) in the two-stage precipitation area, flow rate of liquid is slow and flow field is stable, under gravity, solid particulate matter meeting Closely knit mudding floor is formed in two-stage precipitation area bottom, the formation of the mudding layer is prevented effectively from spoil disposal process to described two grades The disturbance of settling zone bottom thickened sludge, improves the thickening efficiency of solid particulate matter；

(3) two-stage precipitation area upper side wall is more than 90 ° with the angle β of horizontal plane, and the volume in the two-stage precipitation area For 1/50-5 times of one-level settling zone volume so that the two-stage precipitation area possesses enough volumes, when processing, turbidity is high During sewage, sludge will not overflow the two-stage precipitation area, it is to avoid sludge attachment and one-level settling zone lower wall, so that being System is stable；

(4) as water is incompressible fluid, when solid particulate matter drops to two-stage precipitation area from one-level settling zone, meeting The water of same volume is made to rise to one-level settling zone from two-stage precipitation area, this part ascending current can induce a part of solid particle Thing returns to one-level settling zone, and two-stage precipitation area upper side wall is more than 90 ° with the angle β of horizontal plane, reduces two-stage precipitation area Interior ascending current flow velocity, returns to the probability of one-level settling zone so as to reduce solid particulate matter；

(5) at two-stage precipitation area open top position, the two-stage precipitation area has higher granule to the water inlet pipe Concentration, there is provided the condition of hindered settling so that a large amount of particulate matters are settled in two-stage precipitation area, reduce the granule of one-level settling zone Thing concentration, improves overall sedimentation effect；

(6), at two-stage precipitation area open top position, in water inlet pipe, effluent flow rate is very fast, into two grades for the water inlet pipe Behind settling zone, as inertia force is acted on, particulate matter is moved downward, and clear water is moved upwards, it is possible to achieve particulate matter is quick with water Separate.

Description of the drawings

Fig. 1 is the structural representation of the first embodiment of this utility model；

Structural representations of the Fig. 2 for second embodiment of this utility model；

Fig. 3 is the structural representation of the third embodiment of this utility model；

Wherein, reference is：

1-outlet pipe, 2-one-level settling zone, 3-one-level settling zone lower wall, 4-two-stage precipitation area upper side wall, 5-two The angle of level settling zone, 6-discharge pipeline, 7-water inlet pipe, α-one-level settling zone lower wall and horizontal plane, β-two-stage precipitation area The angle of the angle of upper side wall and horizontal plane, δ-two-stage precipitation area lower wall and horizontal plane, S-water inlet pipe lower end are sunk with two grades The distance of shallow lake area top open part, H-two-stage precipitation area height.

Specific embodiment

In order that content of the present utility model is more easily understood, this utility model combines the drawings and specific embodiments pair Content of the present utility model is further described：

Embodiment 1

As shown in figure 1, the gravity concentration device that this utility model is provided, including one-level settling zone 2, second-level settling pond 5, enter Water pipe 7, outlet pipe 1, discharge pipeline 6, the side of one-level settling zone 2 arrange water inlet 7, and opposite side arranges outlet pipe 1, one-level precipitation 2 bottom of area sets two-stage precipitation area 5, and 5 bottom of two-stage precipitation area is provided with discharge pipeline 6, one-level level settling zone lower wall 3 and horizontal plane Angle α is 45 °, and two-stage precipitation area upper side wall 4 is 135 ° with the angle β of horizontal plane, two-stage precipitation area lower wall and horizontal plane Angle δ is 45 °.Sewage enters one-level settling zone 2 by water inlet pipe 7, by the effect of gravity, realizes solid-liquid point in one-level settling zone From clear water is flowed out by outlet pipe 1, solids dropout to one-level settling zone lower wall 3, one-level level settling zone lower wall 3 Angle α with horizontal plane is 45 °, and particulate matter slips into two-stage precipitation area 5 from one-level level settling zone lower wall 3, and solid particulate matter exists Two-stage precipitation area 5 carries out concentration and settlement, and two-stage precipitation area 5 possesses enough volumes, and when the high sewage of process turbidity, sludge is not Two-stage precipitation area 5 can be overflowed, 5 open top area of two-stage precipitation area is not more than the 1/2 of 2 maximum cross-section area of one-level settling zone, Play a part of to buffer bottom disturbance, it is ensured that during 6 spoil disposal of discharge pipeline, the disturbance of bottom does not interfere with the sedimentation of one-level settling zone.

Embodiment 2

As shown in Fig. 2 the gravity concentration device that this utility model is provided, including one-level settling zone 2, second-level settling pond 5, enter Water pipe 7, outlet pipe 1, discharge pipeline 6, sewage enter one-level settling zone 2, water inlet pipe 7 from 2 top of one-level settling zone by water inlet pipe 7 Straight down, the height H in two-stage precipitation area 5 is 1m to outlet, 7 lower end of water inlet pipe and 5 top open part of two-stage precipitation area away from From for 0.2m, sewage flows out water inlet pipe, vertically down into two-stage precipitation area 5, as inertia force is acted on, realizes particulate matter and water Sharp separation, clear water flows upwards out two-stage precipitation area 5, and particulate matter sinks to two-stage precipitation area bottom, meanwhile, two-stage precipitation area 5 Open top area is not more than the 1/2 of 2 maximum cross-section area of one-level settling zone, so as to effectively buffer entering to one-level settling zone 2 Water is acted on, it is ensured that the stability of 2 current of one-level settling zone, and part of contaminated water is by flowing into one-level settling zone at the top of two-stage precipitation area 5 2, one-level level settling zone lower wall 3 is 45 ° with the angle α of horizontal plane, and particulate matter is separated in one-level settling zone with liquid, is deposited on One-level settling zone lower wall 3, slips into two-stage precipitation area 5, and clear water is flowed out from one-level settling zone top outlet pipe 1.

Embodiment 3

As shown in figure 3, do not exist together with embodiment 2 be passed through from 2 side wall of one-level settling zone for water inlet pipe, relative to embodiment 2, Embodiment 3 is easier to construction.

The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art For art personnel, some improvement can also be made on the premise of without departing from this utility model principle, these improvement also should be regarded as Protection domain of the present utility model.

Claims

1. a kind of gravity concentration device, including one-level settling zone (2), two-stage precipitation area (5), water inlet pipe (7), the one-level precipitation Area's lower wall (3) is more than 0 ° and is less than or equal to 90 ° with the angle α of horizontal plane, with the one-level at the top of the two-stage precipitation area (5) Settling zone (2) bottom is connected, and two-stage precipitation area (5) bottom is provided with discharge pipeline (6), and the top of one-level settling zone (2) is provided with Outlet pipe (1), it is characterised in that：Two-stage precipitation area upper side wall (4) is more than 90 ° with the angle β of horizontal plane.

2. gravity concentration device according to claim 1, it is characterised in that：One-level settling zone lower wall (3) and water The angle α of plane is 45 °.

3. gravity concentration device according to claim 1 and 2, it is characterised in that：The two-stage precipitation area (5) open top Area is not more than the 1/2 of one-level settling zone (2) maximum cross-section area.

4. gravity concentration device according to claim 3, it is characterised in that：Two-stage precipitation area (5) the open top face Product is not more than the 1/4 of one-level settling zone (2) maximum cross-section area.

5. gravity concentration device according to claim 1, it is characterised in that：The volume of the two-stage precipitation area (5) is institute State one-level settling zone (2) volume 1/50-5 times.

6. gravity concentration device according to claim 1, it is characterised in that：Two-stage precipitation area upper side wall (4) and water The angle β of plane is 135 °.

7. gravity concentration device according to claim 1, it is characterised in that：Two-stage precipitation area lower wall and horizontal plane Angle δ be more than 0 ° and be less than 180 °.

8. gravity concentration device according to claim 7, it is characterised in that：Two-stage precipitation area lower wall and horizontal plane Angle δ be more than 0 ° and be less than 90 °.

9. gravity concentration device according to claim 8, it is characterised in that：Two-stage precipitation area lower wall and horizontal plane Angle δ be 45 °.

10. according to the arbitrary described gravity concentration device of claim 1,2,4,5,6,7,8,9, it is characterised in that：The water inlet Pipe (7) is arranged at the top of one-level settling zone (2).

11. gravity concentration devices according to claim 10, it is characterised in that：Water inlet pipe (7) outlet is passed through two Level settling zone (5) top open part, water inlet pipe (7) outlet are less than apart from S with two-stage precipitation area (5) top open part The 1/2 of two-stage precipitation area (5) height H, water inlet pipe (7) outlet are located above two-stage precipitation area (5) top open part Or below.