CN205709927U - A kind of vertical eddy current idetified separation device and high efficient solid and liquid separation granulating fluidized bed - Google Patents

Abstract

The utility model discloses a vertical eddy current strengthening separation device and a granulation fluidized bed for high-efficiency solid-liquid separation. The vertical eddy current strengthening separation device is installed in the separation area; There are multiple bellows vertically fixed together around the stirring shaft sleeve. The two ends of the bellows are clamped between a pair of cross frames, and the center of the cross frame is installed on the stirring shaft sleeve. The two ends of the cross frame are fixed on the inner wall of the tank in the separation area. The vertical eddy current intensified separation device of the utility model can generate vertical eddy currents, and the vertical eddy currents can promote the growth of small particles entering the device twice, increase the output rate of large particles, and improve the separation efficiency. Because the granulation fluidized bed of the utility model adopts the vertical vortex strengthening separation device, it can also increase the output rate of large particles and improve the separation efficiency.

Description

A vertical vortex enhanced separation device and a granulated fluidized bed for high-efficiency solid-liquid separation

technical field

The utility model belongs to the field of water treatment and relates to a granulation fluidized bed, in particular to a vertical vortex intensified separation device and a granulation fluidized bed for efficient solid-liquid separation.

Background technique

As the country pays more attention to environmental protection and the shortage of water resources, water purification and waste water recycling are getting more and more attention. A large number of water treatment technologies and equipment based on the theoretical basis of solid-liquid separation in the suspension layer have been developed and widely used in practical projects. Typical equipment includes French Veolia Actiflo clarifier, French Degremont company DensaDeg high-density clarifier and Philip et al. The developed high-efficiency carrier flocculation device, etc. The above-mentioned equipment has successfully realized the integration and equipment of water treatment technology, and the water purification effect is obvious, but there are also certain technical defects. For example, the Actiflo clarifier forms a high-density, large-particle floc suspension layer in the lower part of the inclined tube area, which greatly shortens the flocculation time, and the surface load can reach more than 80m/h, but the flocculation area occupies a large area and has many ancillary equipment; DensaDeg The high-density clarifier process organically combines coagulation, clarification, inclined tube sedimentation, and sludge reflux. The surface load can reach 20-50m/h, but the flocculation area occupies a large area; the carrier flocculation device can also achieve relatively large High surface load, but the auxiliary equipment is too complicated. Some domestic water plants also use sedimentation and concentration, the supernatant is discharged or recovered, and the sludge is discharged after dehydration. This method has low efficiency, large investment, large footprint, high operating costs, troublesome management, and unsatisfactory effects.

A high-efficiency solid-liquid separator and a high-efficiency integrated mud-water separation device are disclosed in the prior art, which also have a reaction zone, a separation zone, and a sludge concentration zone, and have solid-liquid separation for high-concentration SS and general-concentration wastewater treatment , but the separation area of the two needs to be filtered by a filter to achieve the effect of solid-liquid separation in the separation area. The disadvantage of this method is that the filter screen is easily blocked, and a flushing system needs to be arranged; at the same time, due to the interception of the filter screen, the muddy water particles gather near the filter screen, and the untimely flushing will affect the water output.

In addition, the existing filter screen only has the interception effect on the particles in the granulation area, resulting in a small amount of large particles, which is not conducive to improving the efficiency of solid-liquid separation.

Contents of the invention

In view of the deficiencies in the prior art, the purpose of this utility model is to provide a vertical eddy current intensified separation device to solve the problem that the separation area in the prior art cannot make the particles in the granulation area further grow into large particles, resulting in a high efficiency of solid-liquid separation. Low technical issues.

The utility model also provides a granulation fluidized bed with high-efficiency solid-liquid separation, which solves the technical problem of low efficiency of forming large particles in the existing granulation fluidized bed, resulting in low efficiency of solid-liquid separation in the granulation fluidized bed.

In order to solve the above technical problems, the utility model adopts the following technical solutions to achieve:

A vertical vortex intensified separation device, including a stirring shaft sleeve arranged in the center, a plurality of bellows fixed vertically together are arranged around the stirring shaft sleeve, and the two ends of the bellows are sandwiched between a pair of cross frames In between, the center of the cross frame is installed at both ends of the stirring shaft sleeve.

A granulation fluidized bed with high-efficiency solid-liquid separation, including a base frame, on which a tank body is fixedly installed, and the tank body is sequentially composed of a sludge concentration area, a granulation area, a separation area and a collecting The water area is characterized in that: a vertical vortex intensified separation device is installed in the separation area;

The vertical vortex strengthening separation device can make the water in the separation zone generate a vertical vortex.

The vertical vortex intensified separation device includes a stirring shaft sleeve arranged in the center, and a plurality of bellows fixed vertically together are arranged around the stirring shaft sleeve, and the two ends of the bellows are clamped between a pair of cross frames. Between them, the center of the cross frame is installed at both ends of the stirring shaft sleeve, and the ends of the cross frame are fixed on the inner wall of the tank in the separation area.

The utility model also has the following distinguishing technical features:

A mud scraping device is installed in the sludge concentration area, and a sludge discharge pipe connected to the sludge concentration area in the tank is arranged on the outer wall of the tank.

The mud scraping device includes a mud scraper arranged inside the bottom of the tank, and the mud scraper is driven to rotate by a mud scraper drive motor arranged outside the tank.

An inner cylinder is installed in the granulation area, and the inner cylinder is consolidated in the tank body through a connecting ring, and the inner cylinder and the tank body are arranged on the same central axis;

The bottom end of the inner cylinder is connected with the water inlet pipe arranged horizontally, and the water inlet pipe passes through the side wall of the tank body and protrudes to the outside of the tank body;

The top of the inner cylinder is open, and a stirring device is installed in the inner cylinder. The stirring shaft of the stirring device protrudes from the top of the inner cylinder, passes through the separation area and the water collection area, and extends out of the top of the tank body. The stirring shaft is installed on the tank body through The stirring drive motor at the top drives the rotation.

A stirring shaft sleeve is arranged at the center of the vertical vortex strengthening separation device, and the stirring shaft passes through the stirring shaft sleeve.

Both the bottom of the tank body and the bottom of the inner cylinder are conical bucket bottoms.

The water inlet pipe is also arranged with a water inlet concentration meter, a coagulant dosing pipe and a coagulant aid dosing pipe, the coagulant dosing pipe is arranged before the water inlet concentration meter, and the coagulant dosing pipe is arranged After entering the water concentration meter.

A water outlet pipe is arranged on the top cover of the tank at the top of the water collection area.

Compared with the prior art, the utility model has the following technical effects:

(I) The vertical eddy current intensified separation device of the utility model can generate vertical eddy currents, and the vertical eddy currents can promote the growth of small particles entering the device, improve the output rate of large particles, and improve the separation efficiency. The granulation fluidized bed of the utility model can also improve the output rate of large particles and improve the separation efficiency due to the adoption of the vertical vortex strengthening separation device. The utility model makes good use of the high-density performance of the particles rising from the bottom granulation area to the separation area. The fine particles in the raw water undergo agglomeration and flocculation process in the granulation zone, and gradually form a spherical body with a large effective density. Larger spherical particles are turned directly into the sludge concentration zone after passing through the inner cylinder, while smaller particles enter the vertical vortex enhanced separation zone. The particles form a vertical vortex in the separation zone under the action of a certain rising flow rate. Larger, and the eddy current formed will not be broken, and the small particles will continue to contact and flocculate, and gradually grow up.

(II) The vertical vortex intensified separation device well combines the characteristics of high rising flow rate during the operation of the granulation fluidized bed. Due to the formation of the eddy current must have a certain ascending flow rate, otherwise it is very easy to break, or cannot form larger particles. The granulation fluidized bed itself has a high ascending flow rate, which just provides conditions for the formation of eddy currents at the corrugations and promotes the solid-liquid separation process.

(Ⅲ) The granulation fluidized bed of the utility model can also solve the technical problems in the prior art that the separation area adopts a filter screen to filter and is easy to block, needs to arrange a flushing system, and will affect the water outlet if the flushing is not timely, so as to improve the separation efficiency and ensure the water quality of the outlet water . The vertical vortex enhanced separation device has the advantage of no flushing. Small particles continue to grow under the action of contact flocculation, and after growing to a certain extent, they automatically fall into the sludge concentration area under the action of gravity. Then the vortex starts to form, the small particles start to grow, and so on.

Description of drawings

Fig. 1 is a front sectional view of a vertical eddy current enhanced separation device.

Fig. 2 is a top view of the vertical vortex enhanced separation device.

Fig. 3 is a schematic diagram of the overall structure of a granulation fluidized bed with high-efficiency solid-liquid separation.

Fig. 4 is a structural schematic diagram of the section A-A in Fig. 3 .

The meaning of each label in the figure is: 1-base frame, 2-tank body, 3-sludge concentration area, 4-granulation area, 5-separation area, 6-water collection area, 7-vertical eddy current enhanced separation device , 8-mud scraping device, 9-mud discharge pipe, 10-water inlet pipe, 11-water inlet concentration meter, 12-coagulant dosing pipe, 13-coagulant aid dosing pipe, 14-water outlet pipe;

(4-1)-inner cylinder, (4-2)-connecting ring, (4-3)-stirring device, (4-4)-stirring shaft, (4-5)-stirring drive motor;

(7-1)-stirring shaft sleeve, (7-2)-bellows, (7-3)-cross frame;

(8-1)-scraper, (8-2)-scraper driving motor.

Below in conjunction with embodiment the specific content of the present utility model is described in further detail.

detailed description

The specific embodiments of the present utility model are provided below, and it should be noted that the present utility model is not limited to the following specific embodiments, and all equivalent transformations done on the basis of the technical solution of the application all fall into the protection scope of the present utility model.

Example 1:

According to the above technical scheme, as shown in Figure 1 and Figure 2, this embodiment provides a vertical vortex enhanced separation device, including the stirring shaft sleeve 7-1 arranged in the center, and the surrounding of the stirring shaft sleeve 7-1 There are multiple bellows 7-2 vertically fixed together, the two ends of the bellows 7-2 are sandwiched between a pair of cross frame 7-3, the center of the cross frame 7-3 is installed on the stirring shaft sleeve 7-1 on both ends.

Example 2:

According to the above technical scheme, as shown in Figures 1 to 4, this embodiment provides a granulation fluidized bed with high efficiency solid-liquid separation, including a base frame 1, a tank body 2 is fixedly installed on the base frame 1, and the The tank body 2 from the bottom to the top is the sludge concentration zone 3, the granulation zone 4, the separation zone 5 and the water collection zone 6;

A vertical vortex enhanced separation device 7 is installed in the separation zone 5 , and the vertical vortex enhanced separation device 7 can make the water in the separation zone 5 generate a vertical vortex.

The vertical vortex strengthening separation device 7 includes a stirring shaft sleeve 7-1 arranged at the center, and a plurality of bellows 7-2 vertically fixed together are arranged around the stirring shaft sleeve 7-1, and the bellows 7-2 The two ends are clamped between a pair of cross frame 7-3, the center of the cross frame 7-3 is installed on the two ends of the stirring shaft sleeve 7-1, and the ends of the cross frame 7-3 are fixed in the separation area 5 on the inner wall of the tank body 2.

A sludge scraping device 8 is installed in the sludge concentration area 3 , and a sludge discharge pipe 9 connected to the sludge concentration area 3 in the tank body 2 is provided on the outer wall of the tank body 2 .

The mud scraping device 8 includes a mud scraper 8-1 arranged inside the bottom of the tank body 2, and the mud scraper 8-1 is driven to rotate by a mud scraper drive motor 8-2 arranged outside the tank body 2.

An inner cylinder 4-1 is installed in the granulation area 4, and the inner cylinder 4-1 is consolidated in the tank body 2 through the connecting ring 4-2, and the inner cylinder 4-1 is arranged concentrically with the tank body 2; the inner cylinder 4-1 The bottom end of 1 communicates with the water inlet pipe 10 arranged horizontally, and the water inlet pipe 10 protrudes to the outside of the tank body 2 through the side wall of the tank body 2;

The top of inner cylinder 4-1 is open, and stirring device 4-3 is installed in the inner cylinder 4-1, and the stirring shaft 4-4 of stirring device 4-3 stretches out the top of inner cylinder 4-1, passes separation zone 5 and The water collection area 6 protrudes from the top of the tank body 2, and the stirring shaft 4-4 is driven to rotate by the stirring drive motor 4-5 installed on the top of the tank body 2.

A stirring shaft sleeve 7-1 is arranged in the center of the vertical vortex intensified separation device 7, and the stirring shaft 4-4 passes through the stirring shaft sleeve 7-1.

Both the bottom of the tank body 2 and the bottom of the inner cylinder 4-1 are conical bucket bottoms.

Inlet water concentration meter 11, coagulant dosing pipe 12 and coagulant aid dosing pipe 13 are also arranged on water inlet pipe 10, coagulant dosing pipe 12 is arranged before influent water concentration meter 11, The pipe 13 is arranged after the influent concentration meter 11 .

A water outlet pipe 14 is arranged on the top cover of the tank body 2 at the top of the water collection area 6 .

Raw water in the granulation area 4, after being stirred by the stirring device 4-3, the particles gradually become larger, and when they reach the top of the inner cylinder 4-1, the large particles fall down and enter the sludge concentration area 3 until they settle to the bottom of the tank body 2 At the end, the small particles continue to rise to the separation zone 5 with the water flow.

The small particles that rise with the water flow enter the vertical eddy current enhanced separation device 7 in the separation area 5, and under the action of the vertical eddy current enhanced separation device 7, the water flow forms a vortex at the corrugation of the bellows 7-2, and the secondary separation of the small particles The secondary growth plays a role in promoting, and the small particles grow up gradually, and after growing to a certain extent, they automatically fall to the sludge concentration area 3 due to the action of gravity, and the clear water is discharged through the outlet pipe 14 in the water collection area 6.

The specific implementation and treatment effect of the granulation fluidized bed in this embodiment will be described below by taking the treatment of backwash wastewater from a water supply plant as an example.

The backwash wastewater has a turbidity of 60-131 NTU and a suspended solids concentration (SS) of 90-111 mg/L, and is treated by the granulation fluidized bed of this embodiment.

Add the coagulant PAFC to the raw water in the water inlet pipe 10 through the coagulant dosing pipe 12, and mix thoroughly to make the particles in the waste water slightly destabilized, and then pour the coagulant PAFC into the water inlet pipe 10 through the coagulant dosing pipe 13 The raw water is added with coagulant PAM and immediately enters the inner cylinder 4-1 for forced stirring, so that the destabilized particles gradually grow up by flocculation and rise with the water flow.

When the water flow crosses the top of the inner tube 4-1, the large particles are turned into the sludge concentration area 3 and discharged through the sludge discharge pipe 9, and the fine particles enter the vertical eddy current intensified separation device 7 of the separation area 5 along with the water flow, and rise at a certain rate. Under the flow rate, the water flow forms a vortex at the corrugated part of the bellows 7-2, and the small particles gradually grow up through contact flocculation in the vortex, and the grown particles automatically fall into the sludge concentration area 3 by gravity, and pass through the sludge discharge pipe. 9 discharge. After the particles in the separation zone 5 fall, new particles are formed again, and such a cycle removes the fine particles in the water, so as to achieve the effect of removing fine particles in the backwash wastewater and reducing the turbidity of the water. And within a certain range, the greater the rising velocity, the more obvious the removal effect. The test results show that the turbidity of raw water drops from about 100NTU to about 2-5NTU after treatment, which is 95%-98% lower. The SS of raw water also decreased from 110mg/L to 3mg/L. Correspondingly, the number of particles in the water should also be greatly reduced. Most of the particulate matter in the water has been removed, and the removal effect is very obvious.

Claims (9)

1. one kind vertical eddy current idetified separation device, including centrally disposed shaft sleeve (7-1), it is characterized in that: shaft sleeve (7-1) is provided around the many corrugated tubes being vertically fixed together (7-2), the two ends of corrugated tube (7-2) are clipped between a pair decussation frame (7-3), the two ends being centrally mounted at shaft sleeve (7-1) of decussation frame (7-3).

2. a high efficient solid and liquid separation is granulating fluidized bed, including pedestal (1), tank body (2) it is installed with on pedestal (1), described tank body (2) is followed successively by sludge condensation district (3), granulation zone (4), Disengagement zone (5) and gathering ground (6) from bottom to top, it is characterised in that:

Being provided with vertical eddy current idetified separation device (7) in described Disengagement zone (5), described vertical eddy current idetified separation device (7) enables to the water in Disengagement zone (5) and produces vertical eddy current；

Described vertical eddy current idetified separation device (7) includes centrally disposed shaft sleeve (7-1), shaft sleeve (7-1) is provided around the many corrugated tubes being vertically fixed together (7-2), the two ends of corrugated tube (7-2) are clipped between a pair decussation frame (7-3), the two ends being centrally mounted at shaft sleeve (7-1) of decussation frame (7-3), the end of decussation frame (7-3) is fixed on tank body (2) inwall of Disengagement zone (5).

3. high efficient solid and liquid separation as claimed in claim 2 is granulating fluidized bed, it is characterized in that: mud-scraping apparatus (8) is installed in described sludge condensation district (3), tank body (2) outer wall is provided with the discharge pipeline (9) of connection tank body (2) interior sludge condensation district (3).

4. high efficient solid and liquid separation as claimed in claim 3 is granulating fluidized bed, it is characterized in that: described mud-scraping apparatus (8) includes being arranged on the cleaning shoe (8-1) of tank body (2) bottom inside, cleaning shoe (8-1) drives motor (8-2) to be rotated by being arranged on tank body (2) mud of scraping outward.

5. high efficient solid and liquid separation as claimed in claim 2 is granulating fluidized bed, it is characterized in that: in described granulation zone (4), inner core (4-1) is installed, inner core (4-1) is fixedly arranged in tank body (2) by connecting ring (4-2), and inner core (4-1) is arranged with tank body (2) concentricity axle；The bottom of inner core (4-1) is connected with horizontally disposed water inlet pipe (10), and it is outside that water inlet pipe (10) extend out to tank body (2) through tank body (2) sidewall；

The open top end of described inner core (4-1), inner core (4-1) is provided with agitating device (4-3), the shaft (4-4) of agitating device (4-3) stretches out the top of inner core (4-1), through Disengagement zone (5) and gathering ground (6), stretching out tank body (2) top, shaft (4-4) drives motor (4-5) to be rotated by being arranged on the stirring on tank body (2) top.

6. high efficient solid and liquid separation as claimed in claim 5 is granulating fluidized bed, it is characterized in that: described vertical eddy current idetified separation device (7) is provided centrally with shaft sleeve (7-1), shaft (4-4) passes shaft sleeve (7-1).

7. high efficient solid and liquid separation as claimed in claim 5 is granulating fluidized bed, it is characterised in that: the bottom of described tank body (2) and the bottom of described inner core (4-1) are at the bottom of taper bucket.

8. high efficient solid and liquid separation as claimed in claim 5 is granulating fluidized bed, it is characterized in that: there also is provided influent concentration meter (11), coagulant dosage pipe (12) and flocculation aid on described water inlet pipe (10) and add pipe (13), before coagulant dosage pipe (12) is laid in influent concentration meter (11), flocculation aid adds after pipe (13) is laid in influent concentration meter (11).

9. high efficient solid and liquid separation as claimed in claim 2 is granulating fluidized bed, it is characterised in that: it is provided with outlet pipe (14) on tank body (2) top cover at described gathering ground (6) top.