Sludge thickener

Abstract

The utility model discloses a sludge thickener which comprises a shell, a feed hopper communicated with the inside of the shell is arranged at the top of the shell, a flow dividing rod is arranged in the feed hopper, a separation cavity and a discharge cavity are arranged in the shell, the flow dividing rod is fixedly connected with the feed hopper, the upper end of the flow dividing rod extends to the feed hopper, and the lower end of the flow dividing rod extends to the separation cavity. A centrifugal rod is arranged in the middle of the separation cavity in a suspended mode, the centrifugal rod and the flow dividing rod are aligned in the vertical direction, a first discharging pipeline and a discharging cavity are arranged at the lower end of the separation cavity, the first discharging pipeline communicates with the discharging cavity, a plurality of second through holes are formed in the two sides of the separation cavity correspondingly, and second discharging pipelines are arranged between the two ends of the separation cavity and the shell. The second discharging pipeline is communicated with the second through hole, a third discharging pipeline is arranged below the discharging cavity, and the second discharging pipeline and the third discharging pipeline are respectively communicated with the outside; according to the utility model, the energy consumption is effectively reduced, the concentration efficiency is improved, and the separation cavity and the discharge cavity can be cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge treatment, in particular to a sludge concentrator. Background Art

[0002] Organic sewage generated by human production and life must be treated to meet the standards before it can be discharged. Organic sewage treatment methods can be divided into physical, chemical and biological methods according to their principles. Since biological methods are low-cost and effective, biological treatment methods are most commonly used in sewage treatment plants.

[0003] The activated sludge method and its derivative processes in biological treatment are widely used in sewage treatment plants. In the activated sludge method and its derivative processes, sludge is often kept suspended in water by stirring or aeration, and the metabolic action of active microorganisms is used to remove pollutants in sewage. On the one hand, sludge is transferred in various processes of the activated sludge method. On the other hand, the sludge treatment device runs for a long time, and in order to maintain high-efficiency treatment, it is often necessary to discharge sludge continuously. In addition, in the commonly used A 2 In O and its derivative processes, there is a situation where the sludge between tanks is recycled for treatment.

[0004] During the sludge transmission process, if the sludge concentration is too low, the total liquid volume will be too large, thus causing the problem of high energy consumption. At the same time, in the sludge treatment process, sludge concentration is an important step. Centrifugation is a commonly used sludge concentration method. The centrifugal concentrator throws water out of the screen through the centrifugal action, and the sludge in the screen is concentrated, but the screen is easy to clog, difficult to clean, and has high energy consumption. Utility Model Content

[0005] In view of the above situation, it is necessary to provide a sludge thickener to address the problems of high energy consumption and difficulty in cleaning of thickening equipment in the prior art.

[0006] A sludge thickener, wherein a feed hopper connected to the interior of the shell is arranged on the top of the shell, a diverter rod is arranged in the feed hopper, a separation chamber and a discharge chamber are arranged in the shell, the diverter rod is fixedly connected to the feed hopper, the upper end of the diverter rod extends toward the feed hopper, the lower end of the diverter rod extends toward the separation chamber, a centrifugal rod is suspended in the middle of the separation chamber, the centrifugal rod and the diverter rod are aligned in a vertical direction, a first discharge pipeline and a discharge chamber are arranged at the lower end of the separation chamber, the first discharge pipeline is connected to the discharge chamber, a plurality of second through holes are respectively arranged on both sides of the separation chamber, a second discharge pipeline is arranged between the two ends of the separation chamber and the shell, the second discharge pipeline is connected to the second through hole, a third discharge pipeline is arranged below the discharge chamber, the second discharge pipeline and the third discharge pipeline are respectively connected to the outside.

[0007] In the utility model, sludge enters the sludge thickener from the feed hopper, and the diverter rod relatively separates the sludge to reduce the flow rate of the feed hopper to prevent the sewage in the separation chamber from overflowing due to excessive feeding. Then, after the sludge passes through the filter tank, the centrifugal rod is dynamically controlled. When the flow rate is large, the centrifugal rod runs continuously, and the sludge is discharged from the discharge chamber through the third discharge pipeline. When the flow rate is small, the centrifugal rod runs intermittently, and the sludge is discharged from the second through hole through the second discharge pipeline, thereby reducing energy consumption and effectively improving the concentration efficiency.

[0008] Furthermore, a filter plate is arranged in the shell, a telescopic rod is arranged between both ends of the filter plate and the shell, both ends of the filter plate are respectively connected to the telescopic rod, a screen is arranged between the filter plate and the separation chamber in a vertical direction, the screen is movably connected to the filter plate, the filter plate is respectively connected to the feed hopper and the separation chamber in a vertical direction, a first motor is fixed at the lower end of the diverter rod, the output shaft of the first motor extends to the centrifugal rod, and the first motor is fixedly connected to the centrifugal rod.

[0009] The utility model drives the centrifugal rod to stir the sludge through the first motor, and the screen at the bottom of the filter disc can be replaced when necessary, and the sludge in the separation chamber and the discharge chamber can be cleaned.

[0010] Furthermore, a plurality of stirring rods and a plurality of first through holes are fixedly provided on the side wall of the centrifugal rod. The centrifugal rod is a hollow tube. The centrifugal rod is respectively connected with the first through hole and the first discharge pipeline. A second motor is also fixedly provided at both ends of the side wall of the centrifugal rod. The second motor is connected with the first baffle through a rotating shaft.

[0011] The utility model utilizes a first baffle plate to block a first through hole so that the separation chamber is not connected to the centrifugal rod, and drives the first baffle plate through a second motor at both ends of the side wall of the centrifugal rod to realize the connection between the separation chamber and the centrifugal rod through the first through hole. The centrifugal rod is driven to rotate by the motor and then drives the stirring rod to move, so that the sludge forms a relative water layer and a mud layer in the separation chamber, and is discharged from the centrifugal rod to the discharge chamber through the first through hole via the first discharge pipeline.

[0012] Furthermore, a door is provided on one side of the separation chamber, the door is movably connected to one end of the shell, and a handle is fixed on the door.

[0013] The utility model has a door at one side of the separation chamber, which can be opened by a handle to enter the separation chamber, replace the screen and clean the sludge adhered to the inner wall of the separation chamber and the inner wall of the discharge pipe.

[0014] Furthermore, a plurality of second baffles are provided on the inner side of the separation chamber, and the second baffles are used to shield two adjacent second through holes.

[0015] Furthermore, a plurality of third motors are fixed at the upper and lower ends of the separation chamber, and the output shafts of the third motors are connected to the second baffle.

[0016] The utility model drives the second baffle to move by the third motor to realize the opening and closing of the second through hole, thereby controlling the opening and closing of the separation chamber and the second discharge pipeline.

[0017] Furthermore, the second discharge pipeline is provided with a first valve, and the third discharge pipeline is provided with a second valve.

[0018] The utility model controls the communication between the second discharge pipeline and the third discharge pipeline and the outside by arranging valves.

[0019] Furthermore, a control box is provided on one side of the shell, and the first valve, the second valve, the telescopic rod, the first motor, the second motor and the third motor are electrically connected to the control box respectively.

[0020] Furthermore, the shell is fixed on a support base, and support feet are provided below the support base. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model;

[0022] Figure 2 It is a cross-sectional view of the first embodiment of the utility model;

[0023] Figure 3 It is a top view of the first embodiment of the utility model.

[0024] Figure numerals: 1. Support foot; 2. Support seat; 3. Shell; 4. Control box; 5. Discharge chamber; 6. Separation chamber; 7. Feed hopper; 8. Diverter rod; 9. Screen; 10. Telescopic rod; 11. Centrifugal rod; 12. First through hole; 13. Door; 14. Handle; 15. First motor; 16. Filter plate; 17. Stirring rod; 18. First discharge pipeline; 19. Second discharge pipeline; 20. Third discharge pipeline; 21. First valve; 22. Motor bracket; 23. Second motor; 24. Rotating shaft; 25. First baffle; 26. Third motor; 27. Second baffle; 28. Second through hole; 29. ​​Second valve. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The drawings provide embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing this embodiment is to make the disclosure of the present invention more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by technicians in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items. In addition, the various embodiments of the present invention, the features in the embodiments, and the features of the embodiments can be freely combined without obvious conflicts or contradictions.

[0028] like Figures 1 to 3 As shown, a thickening sludge machine includes: a shell 3 and a feed hopper 7 connected to the inside of the shell 3 is arranged on the top of the shell 3, a diverter rod 8 is arranged in the feed hopper 7, a filter plate 16, a separation chamber 6, a centrifugal rod 11 and a discharge chamber 5 are arranged from top to bottom in the shell 3, the lower end of the shell 3 is fixed on the support seat 2, and a support foot 1 is provided below the support seat 2.

[0029] The feed hopper 7 is in an inverted trapezoidal shape and is arranged at the uppermost end of the housing 3. The upper end of the diverter rod 8 extends toward the feed hopper 7 and is fixedly connected to the feed hopper 7. The lower end of the diverter rod 8 extends into the separation chamber 6. The lower end of the diverter rod 8 is fixedly provided with a first motor 15. A telescopic rod 10 is arranged between the two ends of the filter plate 16 and the housing 3. The two ends of the filter plate 16 are respectively connected to the telescopic rod 10. A screen 9 is arranged between the filter plate 16 and the separation chamber 6 in a vertical direction. The screen 9 is movably connected to the filter plate 16. The filter plate 16 is respectively connected to the feed hopper 7 and the separation chamber 6 in a vertical direction. A centrifugal rod 11 is suspended in the middle of the separation chamber 6, the diverter rod 8 and the centrifugal rod 11 are aligned in the vertical direction, the output shaft of the first motor 15 extends to the centrifugal rod 11, the first motor 15 is fixedly connected to the centrifugal rod 11, a plurality of stirring rods 17 and a plurality of first through holes 12 are fixedly arranged on the centrifugal rod 11, a motor bracket 22 is arranged at the upper and lower ends of the side wall of the centrifugal rod 11, a second motor 23 is arranged in the motor bracket, the second motor 23 is connected to the first baffle 25 through a rotating shaft 24, and the first baffle 25 is used to cover the first through hole 12 , so that the separation chamber 6 is not connected to the centrifugal rod 11, and the second motors 23 at both ends of the side walls of the centrifugal rod 11 drive the first baffle 25 to realize the connection between the separation chamber 6 and the centrifugal rod 11 through the first through hole 12. A plurality of second through holes 28 and a plurality of second baffles 27 are respectively provided on both sides of the separation chamber 6. The cross section of the second baffle 27 is used to cover two adjacent second through holes 28. A plurality of third motors 26 are fixed at the upper and lower ends of the separation chamber 6. The output shaft of the third motor 26 is connected to the second baffle 27. The lower end of the separation chamber 6 A first discharge pipeline 18 and a discharge chamber 5 are provided, the centrifugal rod 11 is a hollow tube, the first discharge pipeline 18 is communicated with the first through hole 12 and the discharge chamber 5 respectively, a second discharge pipeline 19 is provided between the two sides of the separation chamber 6 and the shell 3, the second discharge pipeline 19 is communicated with the second through hole 28, a third discharge pipeline 20 is provided below the discharge chamber 5, the second discharge pipeline 19 and the third discharge pipeline 20 are communicated with the outside respectively, the second discharge pipeline 19 is provided with a first valve 21 and the third discharge pipeline 20 is provided with a second valve 29.

[0030] A door 13 is provided on one side of the separation chamber 6, and the door 13 is movably connected to one end of the shell 3. A handle 14 is provided on the door 13. A control box 4 is provided on one side of the shell 3. The first valve 21, the second valve 29, the telescopic rod 10, the first motor 15, the second motor 23 and the third motor 26 are electrically connected to the control box 4 respectively.

[0031] The utility model realizes the following process: the sludge enters the sludge thickener from the feed hopper 7, and the diverter rod 8 relatively separates the sludge to reduce the flow of the feed hopper 7 to prevent the sludge from overflowing due to too fast feeding, and dynamically controls the first motor 15, the second motor 23, the third motor 26, the first valve 21 and the second valve 29 respectively.

[0032] When the sludge flow rate is large, the telescopic rod 10 is telescopically moved to filter the sludge flowing into the feed hopper 7 through the screen 9 for the first time. After filtration, the sludge continues to flow into the separation chamber 6 relatively evenly, and the first motor 15 is controlled to drive the centrifugal rod 11 to run continuously. The centrifugal rod 11 drives the stirring rod 17. At this time, the first baffles 25 at the upper and lower ends of the side wall of the centrifugal rod 11 block the first through hole 12, so that the first through hole 12 is not connected to the separation chamber 6. When the first motor 15 reaches the preset speed, under the action of the stirring rod 17, the sludge forms a state in which the middle area of ​​the concentration is relatively thin and the outer area is relatively thick. The third motor 26 at the lower left side is controlled by the control box 4 to drive the second baffle 26 at the lower left side. The plate 27 moves so that the second through hole 28 is connected with the second discharge pipeline 19. At the same time, the first valve 21 on the left and the second valve 29 on the left are opened by the control box 4. The first baffle 25 is driven to move by controlling the second motor 23 so that the first through hole 12 is connected with the separation chamber 6. The sludge concentrated water around the inner wall of the separation chamber 6 flows out from the second through hole 28 on the left side opened on the inner wall of the separation chamber 6 along the second discharge pipeline 19 on the left side, and the sludge dilution water near the centrifugal rod 11 flows from the first through hole 12 opened in the middle of the centrifugal rod 11 along the first discharge pipeline 18 to the discharge chamber 5. The sludge dilution water is then discharged from the discharge chamber 5 through the third discharge pipeline 20 on the left side. Through continuous stirring, the sludge concentration in the separation chamber 6 is continuously formed into a state where the middle area is relatively thin and the outer area is relatively thick, and the continuously entering mud and water mixture is concentrated.

[0033] When the sludge flow rate is small, the telescopic rod 10 is telescopically moved to filter the sludge flowing into the feed hopper 7 through the screen 9 for the first time. After filtration, the sludge flows into the separation chamber 6 relatively evenly, and the first motor 15 drives the centrifugal rod 11 to run intermittently. Before starting, the first baffles 25 at the upper and lower ends of the side wall of the centrifugal rod 11 block the first through hole 12, so that the first through hole 12 is not connected to the separation chamber 6, and the third motor 26 on the upper right side is controlled by the control box 4 to close the second baffle 27 on the right side, so that the second through hole 28 is not connected to the second discharge pipeline 19. When the sludge in the separation chamber 6 forms a certain speed, the stirring is stopped, and the rotating sludge particles approach the middle of the centrifugal rod 11, and the sludge concentrated water is formed in the central area, and the sludge diluted water is formed in the peripheral area. At this time, the third motor 26 on the upper right side is controlled by the control box 4 to drive the second baffle 27 on the right side to move, so that the second through hole 28 is connected to the second discharge pipeline 19. At the same time, the first valve 21 and the second valve 29 on the right side are opened by the control box 4, and the second motor 23 on the side wall of the centrifugal rod 11 drives the first baffle 25 connected thereto to move, so that the first through hole 12 is connected to the separation chamber 6. At this time, the sludge concentrated water gradually flows along the first through hole 12 on the right side through the first discharge pipeline 18 to the discharge chamber 5, and then is discharged from the third discharge pipeline 20 on the right side, while the sludge diluted water flows out from the second through hole 28 of the separation chamber 6 and then is discharged from the second discharge pipeline 19 on the right side. After a period of time, the above operation is repeated to achieve sludge concentration.

[0034] In addition, the lower part of the sludge particles in the separation chamber 6 is thicker than the upper part. On the side for collecting sludge concentrated water, the lower through hole is opened and the upper through hole is closed. On the side for collecting sludge dilution water, the upper through hole is opened and the lower through hole is closed to achieve secondary concentration or dilution and enhance the effect.

[0035] It can be understood that by controlling the second motor 23, the third motor 26, the first valve 21 and the second valve 29, a variety of combinations of sludge discharge passages can be formed.

[0036] When necessary, the door 13 is opened by the handle 14 to enter the separation chamber 6 , so as to replace the screen 9 and clean the sludge adhering to the inner wall of the separation chamber 6 and the inner wall of the discharge chamber 5 .

[0037] The utility model dynamically controls the working frequency of the centrifugal rod 11 according to the actual situation of the sludge flow rate, and cooperates with the control of the second motor 23, the third motor 26, the first valve 21 and the second valve 29. The stirring rod 17 can effectively reduce energy consumption, and through intermittent operation, further save energy consumption, and effectively improve the concentration efficiency. When necessary, the warehouse door 13 can be opened, the screen 9 can be replaced, and the sludge in the separation chamber 6 and the discharge chamber 5 can be cleaned.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] The above-mentioned embodiments only express the implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A sludge thickener, comprising a housing, characterized in that: A feed hopper connected to the interior of the shell is arranged on the top of the shell, a diverter rod is arranged in the feed hopper, a separation chamber and a discharge chamber are arranged in the shell, the diverter rod is fixedly connected to the feed hopper, the upper end of the diverter rod extends toward the feed hopper, the lower end of the diverter rod extends toward the separation chamber, a centrifugal rod is suspended in the middle of the separation chamber, the centrifugal rod and the diverter rod are aligned in the vertical direction, a first discharge pipeline and a discharge chamber are arranged at the lower end of the separation chamber, the first discharge pipeline is connected to the discharge chamber, a plurality of second through holes are respectively arranged on both sides of the separation chamber, a second discharge pipeline is arranged between the two ends of the separation chamber and the shell, the second discharge pipeline is connected to the second through hole, a third discharge pipeline is arranged below the discharge chamber, the second discharge pipeline and the third discharge pipeline are respectively connected to the outside.

2. The sludge thickener according to claim 1, characterized in that: A filter disc is arranged in the shell, a telescopic rod is arranged between both ends of the filter disc and the shell, both ends of the filter disc are respectively connected to the telescopic rod, a screen is arranged between the filter disc and the separation chamber in a vertical direction, the screen is movably connected to the filter disc, the filter disc is respectively connected to the feed hopper and the separation chamber in a vertical direction, a first motor is fixed at the lower end of the diverter rod, an output shaft of the first motor extends to the centrifugal rod, and the first motor is fixedly connected to the centrifugal rod.

3. The sludge thickener according to claim 2, characterized in that: A plurality of stirring rods and a plurality of first through holes are fixedly arranged on the side wall of the centrifugal rod. The centrifugal rod is a hollow tube. The centrifugal rod is respectively connected with the first through holes and the first discharge pipeline. A second motor is also fixedly arranged at both ends of the side wall of the centrifugal rod. The second motor is connected with the first baffle through a rotating shaft.

4. The sludge thickener according to claim 1, characterized in that: A door is provided at one side of the separation chamber, the door is movably connected to one end of the shell, and a handle is fixed on the door.

5. The sludge thickener according to claim 3, characterized in that: A plurality of second baffles are provided on the inner side of the separation chamber, and the second baffles are used to shield two adjacent second through holes.

6. The sludge thickener according to claim 5, characterized in that: A plurality of third motors are fixed at the upper and lower ends of the separation chamber, and the output shafts of the third motors are connected to the second baffle.

7. The sludge thickener according to claim 6, characterized in that: The second discharge pipeline is provided with a first valve, and the third discharge pipeline is provided with a second valve.

8. The sludge thickener according to claim 7, characterized in that: A control box is provided on one side of the shell, and the first valve, the second valve, the telescopic rod, the first motor, the second motor and the third motor are electrically connected to the control box respectively.

9. The sludge thickener according to claim 1, characterized in that: The shell is fixed on the support base, and support feet are arranged under the support base.

Images