CN110066094A - A kind of efficient flocculating device and sludge dewatering treatment system - Google Patents

Abstract

The invention discloses a kind of efficient flocculating device and sludge dewatering treatment systems.Efficient flocculating device includes: efficient flocculating hybrid agent, proof dry powder feeding system and lower support structure；The body structure that efficient flocculating hybrid agent is made of multiple cabinets including mud medicine mixing tank and flocculation mixing channel；Its mud inlet, mud mouth are each provided at top；Agitating device is all provided in mud medicine mixing tank, flocculation mixing channel；Fluid flow direction is upper entering and lower leaving in mud medicine mixing tank；Fluid flow direction is bottom in and top out in flocculation mixing channel；Body structure is located in lower support structure；Proof dry powder feeding system is connect with the dosing mouth on cabinet.Sludge dewatering treatment system includes the efficient flocculating device, folded spiral shell machine.Chemicals dosing plant and flocculation mixing channel are combined together by the efficient flocculating device, may replace flocculation mixing channel, chemicals dosing plant and the dosing pump of original folded spiral shell machine front end, improve integral device production capacity, save clear water, small in size, are saved equipment space occupied, are reduced blowdown.

Description

A high-efficiency flocculation device and sludge dewatering treatment system

technical field

The invention belongs to the technical field of sludge deep dewatering, and relates to a high-efficiency flocculation device and a sludge dewatering treatment system.

Background technique

Sludge from urban sewage plants is a by-product of sewage treatment. With the continuous improvement of sewage treatment volume and discharge standards, the sludge output is increasing day by day. Sewage plant sludge, also known as municipal sludge, or excess sludge, generally has a moisture content of 98.0-99.9%, and the organic matter content of its dry sludge is 25-60%. Generally, it is necessary to add PAM and other agents, undergo flocculation and mixing treatment, and then dewater it with a screw-type sludge dewatering machine to reduce the moisture content of the mud cake to about 80% before further utilization of the sludge cake can be carried out. and disposal.

The existing sludge dewatering treatment system, as shown in Figure 7, usually includes a feeding system, a dosing system, and a dewatering system that are connected in sequence; the feeding system includes a sludge tank and a feeding pump; the dosing system includes dosing device and dosing pump; the dewatering system includes a sludge flocculation mixing tank and a screw-stacking sludge dewatering machine (referred to as screw-stacking machine); its working process is: the sludge is driven into the sludge flocculation mixing from the sludge tank through the feed pump The PAM agent is injected into the sludge flocculation mixing tank through the dosing device and the dosing pump. After the sludge and the agent complete the flocculation mixing reaction in the sludge flocculation mixing tank, they enter the screw stacker for dehydration. Mud cakes shipped out. In the existing sludge dewatering treatment system, auxiliary devices such as a dosing device and a sludge flocculation mixing tank are generally installed at the front end of the screw stacker, which occupies a large space.

The existing screw stacker dewatering system only includes a screw stacker and a sludge flocculation mixing tank, without a dosing system; in the actual working process, it is necessary to cooperate with a dosing device to add PAM reagents, and a dosing pump to transport the medicinal solution to the flocculation. The mixing tank can only run; the dosing device is based on the proportion of 0.3% of the drug and 99.7% of the clean water. In the dosing device, it is first adjusted and mixed evenly, and then the drug liquid is transported to the flocculation mixing tank by the dosing pump. In the flocculation mixing tank Inside, the liquid medicine and muddy water are mixed and stirred and then flocculated. The disadvantages of the existing dosing device are: clean water is consumed, and clean water needs to be provided in proportion; the area is large, and a dosing pump needs to be used.

In the traditional sludge flocculation mixing tank, before adding chemicals for mixing, most of the sludge and chemicals are separated. The flocculation mixing tank is flocculated and mixed with the sludge. In this way, the production capacity of each overall equipment will be reduced, the equipment utilization efficiency will be reduced, and the space utilization rate will be reduced.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the deficiencies of the prior art and provide a combination of the dosing device and the sludge flocculation mixing tank, which can replace the dosing device and the sludge flocculation mixing tank in front of the original screw stacker, High-efficiency flocculation device and sludge dewatering treatment system to improve the overall equipment capacity.

The purpose of this invention is to realize through the following technical solutions:

The present invention is a high-efficiency flocculation device, which comprises: a high-efficiency flocculation mixing main body, a dry powder dosing system and a bottom support structure; The upper part of the box structure is a mud inlet, and the upper part of the other side is a mud outlet; the multiple boxes include at least two boxes, that is, at least one mud inlet connected in sequence. A mud-medicine mixing tank and a flocculation mixing tank; the mud-medicine mixing box is provided with a mud-medicine mixing and stirring device; the flocculation mixing tank is provided with a flocculation mixing and agitating device; The flow direction of the fluid (ie sludge) in the mixing tank is top in and bottom out; the lower part of the flocculation mixing tank is provided with a mud inlet, which is connected with the mud outlet at the lower part of the mud-drug mixing tank, and the upper part of the flocculation mixing tank is provided with a mud outlet, and the flocculation mixing tank The flow direction of the fluid (that is, the sludge) inside is bottom in and top out; the high-efficiency flocculation mixing main body box structure is fixed on the bottom support structure; there is a dosing port on the top of the first box body, that is, the mud medicine mixing box. The dry powder dosing system is connected with the dosing port.

Further, the dry powder dosing system includes a dosing motor, a dry powder dosing hopper, and a conveying screw; the dry powder dosing hopper is arranged on the main body structure of the high-efficiency flocculation mixing main body; the end of the conveying screw is arranged above the dosing port; The front end of the screw is connected with the dosing motor and driven by the dosing motor to transport the dry powder in the dry powder feeding hopper to the dosing port.

Further, the multiple boxes include three or more boxes, that is, two or more mud mixing boxes and a flocculation mixing tank connected in sequence, that is, a preliminary mud mixing box, a mature mud mixing box, which are connected in sequence. Mixing box, ..., flocculation mixing tank; there is a diversion cavity between each mud and medicine mixing box, the mud outlet at the lower part of the former mud medicine mixing box is connected with the diversion cavity, and the mud inlet in the upper part of the latter mud medicine mixing box The port is communicated with the diversion cavity; that is, a diversion cavity is arranged between the preliminary mud medicine mixing box and the mature mud medicine mixing box, the mud outlet at the lower part of the preliminary mud medicine mixing box is communicated with the diversion cavity, and the mature mud medicine mixing box is connected with the diversion cavity. The upper mud inlet is communicated with the diversion chamber; ..., and so on.

Furthermore, a diversion cavity is also provided between the mud-medicine mixing box and the flocculation mixing tank; the mud outlet at the lower part of the mud-medicine mixing box is communicated with the diversion cavity, and the mud inlet at the lower part of the flocculation mixing groove is communicated with the diversion cavity.

Further, the mud-medicine mixing and stirring device includes a mud-medicine mixing and stirring motor, a connecting flange, a mud-medicine mixing and stirring shaft, and a mud-medicine mixing and stirring blade which are connected in sequence; , the speed is 120-150RPM; the mud medicine mixing motor is a frequency conversion motor with speed regulation function.

Further, the flocculation mixing and stirring device includes a flocculation mixing and stirring motor, a flocculation mixing and stirring shaft, and a flocculation mixing and stirring blade which are connected in sequence; -40RPM; the flocculation mixing motor is a variable frequency motor with speed regulation function.

Further, an emptying system is provided at the bottom of the high-efficiency flocculation device, that is, a sewage valve is installed at the bottom of the mud-drug mixing box and the flocculation mixing tank, which is connected with the sewage pipe; when the equipment stops running, the equipment can be emptied in time. sludge and liquid chemicals.

Further, the multiple boxes (including the mud-drug mixing box and the flocculation mixing tank) may be circular boxes or square boxes, or other shapes.

The working principle of the high-efficiency flocculation device of the present invention:

The sludge is transported to the mud-medicine mixing box by the sludge pump, and at the same time, the chemical is added to the mud-medicine mixing box through the dry powder dosing system, and the sludge and the chemical are fully mixed and conditioned in the mud-medicine mixing box. After homogenization, it enters into the flocculation mixing tank for mixing and flocculation; among them, the rotation speed of the blades of the stirring paddle in the mud medicine mixing box and the flocculation mixing tank can be adjusted, and the flocculation effect can be effectively improved by adjusting the rotation speed; the bottom of the flocculation mixing tank Equipped with an emptying device.

The sludge and liquid medicine are fully mixed and conditioned by stirring in the mud medicine mixing box; the stirring paddle adopts a slant blade type, which helps the mud medicine to be fully mixed and dissolved quickly; the speed of the stirring paddle is controlled by the frequency conversion motor at 120RPM to 150RPM ; Sludge and liquid medicine in the mud medicine mixing box through the way of up and down to prolong the mixing time of mud medicine.

The mud medicine mixing box can be composed of a single box body and a stirring device, or can be composed of two (or more) boxes and two (or more) stirring devices, and multiple boxes can make the mud medicine mix more fully; For example, if it consists of two boxes and two stirring devices, the mud water and the liquid medicine enter the preliminary mud medicine mixing box at the same time. After further mixing (and aging reaction) in the box, it enters the flocculation mixing tank.

The sludge and liquid medicine are stirred in the flocculation mixing tank to fully mix and flocculate the sludge and medicine, and prevent the sludge from settling; the stirring paddle adopts a straight-plate stirring paddle or a large-area inclined-blade stirring paddle, which is helpful for flocculation; the stirring paddle is controlled by frequency conversion. The motor controls the speed between 20RPM and 40RPM. By adjusting the rotation speed, it can effectively improve the mixing effect of mud and water and effectively improve the flocculation effect. The flocculation time is longer; ideal flocs are formed, and then enter the screw stacker for mud-water separation.

Dry powder dosing system: The dosing amount can be adjusted according to the moisture content, composition and processing capacity of the sludge; it can improve the flocculation effect and reduce the cost.

The present invention is a sludge dewatering treatment system using the above-mentioned high-efficiency flocculation device, which includes a feeding system and a dewatering system connected in sequence; the feeding system includes a sludge tank and a feeding pump; Sludge dewatering machine (screw stacker); the inlet of the feed pump is connected to the sludge tank; the outlet of the feed pump is connected to the sludge inlet of the above-mentioned high-efficiency flocculation device; the sludge outlet of the above-mentioned high-efficiency flocculation device is connected to the inlet of the screw stacker. Mud port connection. The working process is as follows: the sludge from the sewage plant is pumped into the above-mentioned high-efficiency flocculation device from the sludge tank through the feed pump. After the sludge and the medicament complete the flocculation and mixing reaction in the above-mentioned high-efficiency flocculation device, they enter the screw stacker for dehydration, and are passed through the screw stacker. The dehydrated mud cake is shipped out.

The moisture content of the residual sludge in the sewage plant is generally between 98.0-99.9%, and the organic matter content of the absolutely dry sludge is 25-60%. After the dehydration is completed, the moisture content of the mud cake can be reduced to below 85% (it can be controlled between 80-85%).

Beneficial effects of the present invention:

The high-efficiency flocculation device of the present invention solves the technical problem as follows: the chemical (PAM dry powder) can be directly added to the sewage, the dissolution and flocculation can be completely completed in the high-efficiency flocculation device, the clean water source is not required, the land occupation is small, and the equipment energy consumption is reduced, Improve the overall equipment capacity.

The high-efficiency flocculation device of the present invention organically combines the dosing device and the sludge flocculation mixing tank, and can replace the sludge flocculation mixing tank and the dosing device at the front end of the original screw-stacked sludge dewatering machine (screw stacker). And dosing pump, improve the production capacity of the overall equipment, save clean water, small size, save equipment space, reduce sewage.

Before adding chemicals in the traditional sludge flocculation mixing tank, the chemicals need to be dissolved in advance in the dosing device, conditioned and mixed evenly, and then added. With the high-efficiency flocculation device of the present invention, the dry powder of the medicament can be directly added, the production capacity of the whole equipment can be effectively improved, the use efficiency of the equipment can be improved, the space utilization rate can be improved, and no water source is required, and the land occupation is small and the energy consumption is low.

The high-efficiency flocculation device of the present invention has the following advantages:

1. The sludge treatment efficiency is high, the equipment use efficiency is high, and the space utilization rate is high.

2. Since there is no need to provide clean water, the water source problem is solved and the sewage is reduced.

3. Since there is no water for dilution, the efficiency of sludge dewatering is improved, the production capacity is increased, and the cost is reduced.

4. Saves a dosing pump, a stirring reducer and a mixing tank, effectively reducing land occupation, energy consumption, cost, etc.

5. It is convenient to add medicine.

6. Small impact on the environment.

Description of drawings

Fig. 1 is the front view structure schematic diagram of a kind of high-efficiency flocculation device of the present invention;

Fig. 2 is the flow direction schematic diagram (front view) of sludge in the high-efficiency flocculation device of the present invention;

3 is a schematic diagram (plan view) of the flow direction of sludge in the high-efficiency flocculation device of the present invention;

Fig. 4 is the structural representation of the dry powder dosing system in the present invention;

Fig. 5 is the structural representation of the flocculation mixing and stirring device in the present invention;

Fig. 6 is the structural representation of the mud medicine mixing and stirring device in the present invention;

7 is a schematic structural diagram of an existing sludge dewatering treatment system;

FIG. 8 is a schematic structural diagram of the sludge dewatering treatment system of the present invention.

In the figure: 1. flocculation mixing tank; 2. flocculation mixing and stirring device; 3. mature mud medicine mixing box; 4. mud medicine mixing and stirring device; 5. dry powder dosing system; 6. mud medicine mixing and stirring device; 7. preliminary 8. Bottom support structure; 9. Sewage pipe; 10. Diversion cavity; 11. Dosing motor; 12. Dry powder feeding hopper; 13. Fan blade; 14. Observation window; 15. Conveying screw; 16. Flocculation mixing motor; 17. Flocculation mixing shaft; 18. Flocculation mixing blade; 19. Mud mixing motor; 20. Connecting flange; 21. Mud mixing shaft; 22. Mud mixing and stirring paddle; 23. diversion cavity; 24. dosing port.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and embodiments. However, the content of the present invention is not limited to the examples.

Example 1

As shown in Figure 1, Figure 2 and Figure 3, a high-efficiency flocculation device of the present invention is mainly composed of the following three parts: a high-efficiency flocculation mixing main body, a dry powder dosing system 5 and a bottom support mechanism 8; the high-efficiency flocculation mixing main body is composed of A box structure consisting of a plurality of boxes connected together including a mud medicine mixing box and a flocculation mixing tank; the upper part of one side of the box structure is a mud inlet, and the upper part of the other side is a mud outlet; the said The multiple boxes include three boxes, namely the preliminary mud and drug mixing box 7, the mature mud and drug mixing box 3, and the flocculation mixing tank 1 connected in sequence; the preliminary mud and drug mixing box 7 is provided with a mud and drug mixing and stirring device 6; The mud medicine mixing box 3 is provided with a mud medicine mixing and stirring device 4; the flocculation mixing tank 1 is provided with a flocculation mixing and stirring device 2; The mud inlet and the mud outlet are set at the lower part, and the fluid (that is, the sludge) in the mud medicine mixing tank flows in the upper and lower parts; the lower part of the flocculation mixing tank is provided with a mud inlet, which is communicated with the mud outlet at the lower part of the mature mud medicine mixing box 3 , the upper part of the flocculation mixing tank 1 is provided with a mud outlet, and the flow direction of the fluid (that is, the sludge) in the flocculation mixing tank 1 is bottom in and top out;

As shown in Fig. 2 and Fig. 3 , a diversion cavity 10 is provided between each mud medicine mixing box, that is, a diversion cavity 10 is provided between the preliminary mud medicine mixing box 7 and the mature mud medicine mixing box 3. The mud outlet at the lower part of the mixing box 7 is communicated with the diversion cavity 10, and the mud inlet at the upper part of the mature mud medicine mixing box 3 is communicated with the diversion cavity 10; There is communication between them through the guide cavity 10 .

As shown in Figures 2 and 3, in this embodiment, the three boxes, namely the preliminary mud mixing box 7, the mature mud mixing tank 3, and the flocculation mixing tank 1 are all circular boxes; There is also a diversion cavity 24 between 3 and the flocculation mixing tank 1; the mud outlet at the lower part of the mature mud medicine mixing box 3 is communicated with the diversion cavity 24, and the mud inlet at the lower part of the flocculation mixing tank 1 is communicated with the diversion cavity 24; That is to say, the slag mixing tank 3 and the flocculation mixing tank 1 communicate with each other through the guide cavity 24 .

As shown in Figures 1 and 4, the dry powder dosing system 5 includes a dosing motor 11, a dry powder dosing hopper 12, and a conveying screw 15; Observation window 14; a dosing port 24 is provided on the first box, that is, the preliminary mud-medicine mixing box 7; the end of the conveying screw 15 is set above the dosing port 24; Driven by the dosing motor 11 , the dry powder in the dry powder feeding hopper 12 is transported to the dosing port 24 through the fan blade 13 provided on the conveying screw 15 .

As shown in Figure 5, the flocculation mixing and stirring device 2 includes a flocculation mixing and stirring motor 16, a flocculation mixing and stirring shaft 17, and a flocculation mixing and stirring blade 18 connected in sequence; It is 20-40RPM; the flocculation mixing and stirring motor 16 is a frequency conversion motor with speed regulation function.

As shown in FIG. 6 , the mud mixing and stirring device 6 and the mud mixing and stirring device 4 include the mud mixing motor 19 , the connecting flange 20 , the mud mixing shaft 21 , and the mud mixing paddle 22 connected in sequence. ; The mud medicine mixing and stirring blade 22 adopts the inclined blade type stirring blade, and the rotating speed is 120-150RPM; the mud medicine mixing and stirring motor 19 is a frequency conversion motor, which has the function of speed regulation.

As shown in Figure 1, the bottom of the high-efficiency flocculation device is provided with an emptying device, that is, a sewage valve is provided at the bottom of the preliminary mud medicine mixing box 7, the mature mud medicine mixing box 3 and the flocculation mixing tank 1, which is connected with the sewage pipe 9. Connection; when the equipment stops running, the sludge and liquid medicine in the equipment can be drained in time.

The high-efficiency flocculation mixing main body of the high-efficiency flocculation device is composed of a plurality of boxes and mixing paddles in the box (ie, the preliminary mud mixing box 7 and the mud mixing device 6, the mature mud mixing box 3 and the mud mixing device 4). , flocculation mixing tank 1 and flocculation mixing and stirring device 2) and the diversion cavity between the box body, and the mud medicine mixing tank adopts the method of top-in and bottom-out, and the flocculation mixing tank adopts the method of bottom-in and top-out, which can effectively improve the Flocculation mixing effect.

The working principle of this high-efficiency flocculation device:

The sludge is transported to the preliminary mud-drug mixing box 7 by the sludge pump (feed pump), and at the same time, the dry powder dosing system 5 starts to add drugs, and the sludge and the drug are preliminarily mixed in the preliminary mud-drug mixing box 7 After it is uniform, it enters into the slag mixing box 3 for maturation reaction, and then enters the flocculation mixing tank 1 for flocculation reaction. Adjusting the rotation speed of the stirring blade can effectively improve the flocculation effect.

The sludge and liquid medicine are fully mixed and conditioned by stirring in the mud medicine mixing box; the stirring paddle adopts a slant blade type, which helps the mud medicine to be fully mixed and dissolved quickly; the speed of the stirring paddle is controlled by the frequency conversion motor at 120RPM to 150RPM ; Sludge and liquid medicine in the mud medicine mixing box through the way of up and down to prolong the mixing time of mud medicine.

The mud medicine mixing box includes two boxes and two stirring devices. Multiple boxes can make the mud medicine mix more fully; mud water and liquid medicine enter the preliminary mud medicine mixing box at the same time, and the mud medicine enters the preliminary mud medicine mixing box. The matured mud medicine mixing box, the mud medicine is further mixed (and the aging reaction) in the matured mud medicine mixing box and then enters the flocculation mixing tank.

The sludge and liquid medicine are stirred in the flocculation mixing tank to fully mix and flocculate the sludge and medicine, and prevent the sludge from settling; the stirring paddle adopts a straight-plate stirring paddle or a large-area inclined-blade stirring paddle, which is helpful for flocculation; the stirring paddle is controlled by frequency conversion. The motor controls the speed between 20RPM and 40RPM. By adjusting the rotation speed, it can effectively improve the mixing effect of mud and water and effectively improve the flocculation effect. The flocculation time is longer to form ideal flocs, and then enter the screw stacker for mud-water separation.

Dry powder dosing system: The dosing amount can be adjusted according to the moisture content, composition and processing capacity of the sludge; it can improve the flocculation effect and reduce the cost.

Example 2

A sludge dewatering treatment system using the above-mentioned high-efficiency flocculation device of the present invention, as shown in FIG. 8 , includes a feeding system and a dewatering system that are connected in sequence; the feeding system includes a sludge tank and a feeding pump; the dewatering system includes embodiments 1. The high-efficiency flocculation device and the screw-stacking sludge dewatering machine (screw-stacking machine); the inlet of the feed pump is connected to the sludge tank; the outlet of the feed pump is connected to the mud inlet of the high-efficiency flocculation device; the high-efficiency The sludge outlet of the flocculation device is connected with the sludge inlet of the screw stacker.

The working process is as follows: the sludge from the sewage plant is pumped into the above-mentioned high-efficiency flocculation device from the sludge tank through the feed pump. After the sludge and the medicament complete the flocculation and mixing reaction in the high-efficiency flocculation device, they enter the screw stacker for dehydration. The dehydrated mud cake is shipped out.

working principle:

The sludge in the sludge tank of the sewage plant is transported to the preliminary sludge mixing box 7 of the high-efficiency flocculation device by the feeding pump of the feeding system. After preliminary mixing with the agent in the preliminary mud-medicine mixing box 7, it enters into the mature mud-medicine mixing box 3 to carry out the ripening reaction, and then enters the flocculation mixing tank 1 for flocculation reaction, wherein the mud-medicine mixing box and The rotation speed of the blades of the stirring device in the flocculation mixing tank can be adjusted. By adjusting the rotation speed of the stirring blades, the flocculation effect can be effectively improved; after that, the sludge after the flocculation mixing reaction is completed, from the sludge outlet at the bottom of the flocculation mixing tank 1. , enter the screw stacker for dehydration; finally, the mud cake dehydrated by the screw stacker is transported out.

The water content of the excess sludge in the sludge tank of the sewage plant is generally between 98.0-99.9%, and the organic matter content of the absolutely dry sludge is 25-60%. After the screw-type sludge dewatering machine completes the dewatering, the moisture content of the mud cake can be reduced to below 85% (it can be controlled between 80-85%).

Example 3

As shown in Figure 1, a high-efficiency flocculation device of the present invention includes a high-efficiency flocculation mixing main body, a dry powder dosing system 5 and a bottom support mechanism 8; The box structure is composed of multiple boxes; the upper part of the box structure is a mud inlet, and the upper part of the other side is a mud outlet; the multiple boxes include three boxes, that is, connected in sequence The preliminary mud medicine mixing box 7, the mature mud medicine mixing box 3, the flocculation mixing tank 1; the mud medicine mixing and stirring device 6 is arranged in the preliminary mud medicine mixing box 7; the mud medicine mixing and stirring device is arranged in the mature mud medicine mixing box 3 4; the flocculation mixing tank 1 is provided with a flocculation mixing and stirring device 2; the mud-medicine mixing box (including the preliminary mud-medicine mixing box 7 and the mature mud-medicine mixing box 3) is provided with a mud inlet at the upper part and a mud outlet at the lower part, and the mud and medicine mix The fluid (that is, the sludge) in the box flows from top to bottom; the lower part of the flocculation mixing tank is provided with a mud inlet, which is connected with the mud outlet at the lower part of the mature mud medicine mixing tank 3. The flow direction of the fluid (that is, the sludge) in the tank 1 is bottom in and top out; the high-efficiency flocculation mixing main body box structure is fixed on the bottom support structure 8; the first box body, that is, the preliminary mud medicine mixing box 7 is provided with dosing. Port 24; dry powder dosing system 5 includes dosing motor 11, dry powder dosing hopper 12, and conveying screw 15; dry powder dosing hopper 12 is arranged on the main box structure of the high-efficiency flocculation mixing main body, and an observation window 14 is provided on it; the conveying screw The end of 15 is arranged above the dosing port 24; the front end of the conveying screw 15 is connected to the dosing motor 11 and is driven by the dosing motor 11. The dry powder is delivered to the dosing port 24 .

A diversion cavity 10 is provided between each mud and medicine mixing box, that is, a diversion cavity 10 is provided between the preliminary mud and medicine mixing box 7 and the mature mud and medicine mixing box 3, and the mud outlet at the lower part of the preliminary mud and medicine mixing box 7 and the The diversion cavity 10 is communicated, and the mud inlet on the upper part of the matured mud medicine mixing box 3 is communicated with the diversion cavity 10 .

In this embodiment, the three boxes, that is, the preliminary mud and medicine mixing box 7, the mature mud and medicine mixing box 3, and the flocculation mixing tank 1 are all square boxes; In the diversion cavity, the mud outlet at the lower part of the slag mixing tank 3 is the mud inlet at the lower part of the flocculation mixing tank 1, that is to say, the slag mixing tank 3 and the flocculation mixing tank 1 are directly connected.

Claims (9)

1. a high-efficiency flocculation device is characterized in that, it comprises: high-efficiency flocculation mixing main body, dry powder dosing system and bottom support structure; high-efficiency flocculating mixing main body is a box structure composed of a plurality of boxes connected together; the The upper part of one side of the box structure is a mud inlet, and the upper part of the other side is a mud outlet; the multiple boxes include at least two boxes, that is, at least one mud mixing box and one flocculation mixing tank connected in sequence The mud-medicine mixing box is provided with a mud-medicine mixing and stirring device; the flocculation mixing tank is provided with a flocculation mixing and agitating device; the mud-medicine mixing box is provided with a mud inlet at the upper part and a mud-outlet at the lower part, and the fluid in the mud-medicine mixing box is polluted. The mud flow direction is top in and bottom out; the lower part of the flocculation mixing tank is provided with a mud inlet, which is connected with the mud outlet in the lower part of the mud medicine mixing tank, and the upper part of the flocculation mixing tank is provided with a mud outlet, and the fluid in the flocculation mixing tank, that is, the sludge, flows in the downward direction. The high-efficiency flocculation mixing main body box structure is fixed on the bottom support structure; the first box body, that is, the mud medicine mixing box, is provided with a dosing port, and the dry powder dosing system is connected with the dosing port. 2. The high-efficiency flocculation device according to claim 1, wherein the dry powder dosing system comprises a dosing motor, a dry powder dosing hopper, and a conveying screw; the dry powder dosing hopper is arranged in the high-efficiency flocculation mixing main box structure The end of the conveying screw is set above the dosing port; the front end of the conveying screw is connected with the dosing motor, and is driven by the dosing motor to transport the dry powder in the dry powder feeding hopper to the dosing port. 3. The high-efficiency flocculation device according to claim 1 or 2, wherein the plurality of boxes comprises three or more boxes, that is, two or more mud mixing boxes connected in sequence and one flocculation mixing box There is a diversion cavity between each mud-medicine mixing box, the mud outlet at the lower part of the former mud-medicine mixing box is communicated with the diversion chamber, and the mud inlet at the upper part of the latter mud-medicine mixing box is communicated with the diversion chamber. 4. The high-efficiency flocculation device according to claim 3, wherein a diversion cavity is also provided between the mud-medicine mixing box and the flocculation mixing tank; The mud inlet at the lower part of the mixing tank is communicated with the diversion cavity. 5. The high-efficiency flocculation device according to claim 1 or 2, characterized in that, the mud-medicine mixing and stirring device comprises mud-medicine mixing and stirring motors, connecting flanges, mud-medicine mixing and stirring shafts, mud-medicine mixing and stirring paddles connected in sequence Leaf; mud medicine mixing and stirring blade adopts inclined blade type stirring blade, the speed is 120-150RPM; mud medicine mixing and stirring motor is frequency conversion motor with speed regulation function. 6. The high-efficiency flocculation device according to claim 1 or 2, characterized in that, the flocculation mixing and stirring device comprises a flocculation mixing and stirring motor, a flocculation mixing and stirring shaft, and a flocculation mixing and stirring blade which are connected in sequence; Straight plate type or large area inclined blade type stirring blade, the speed is 20-40RPM; the flocculation mixing and stirring motor is a variable frequency motor, which has the function of speed regulation. 7. The high-efficiency flocculation device according to claim 1 or 2, characterized in that, an emptying system is provided at the bottom of the high-efficiency flocculation device, that is, a sewage valve is provided at the bottom of the mud-medicine mixing box and the flocculation mixing tank, and Sewage pipe connection. 8. The high-efficiency flocculation device according to claim 1 or 2, wherein the plurality of boxes are circular boxes or square boxes. 9. A sludge dewatering treatment system using the high-efficiency flocculation device according to any one of claims 1-8, characterized in that it comprises a feeding system and a dewatering system connected in sequence; the feeding system comprises a sludge tank, Feed pump; the dewatering system includes the high-efficiency flocculation device and the screw-stacked sludge dewatering machine, that is, the screw-stacker; the inlet of the feed pump is connected to the sludge tank; the outlet of the feed pump is connected to the mud inlet of the high-efficiency flocculation device connection; the sludge outlet of the high-efficiency flocculation device is connected with the sludge inlet of the screw stacker.