An efficient sludge concentration system

Abstract

The utility model relates to a high -efficient sludge concentration system belongs to the technical field of sludge dewatering, the system includes flocculation tank, sludge concentration tank, vertical spiral dewatering machine and band filter press, the spiral dewatering machine of the system adopts vertical, avoids the large floor area of equipment to adopt horizontal arrangement's insufficient, and simultaneously adopts sludge concentration tank to carry out sludge concentration, and then further through vertical spiral dewatering machine carries out dewatering, and converts sludge from paste into semi -solid mud, and when conveying to band filter press, carries out dewatering to sludge, and further reduces the water content in sludge, can greatly promote the unit processing capacity of filter press, and shortens single filter pressing period.

Description

Technical Field

[0001] This utility model relates to a high-efficiency sludge thickening system, which belongs to the technical field of sludge dewatering. Background Technology

[0002] With the continuous advancement of urbanization and industrialization, the volume of wastewater treated has increased significantly, accompanied by a sharp rise in sludge production. Sludge treatment is an indispensable part of wastewater treatment, and sludge thickening, as its initial step, directly affects the cost and effectiveness of subsequent treatment. Currently, traditional sludge thickening technologies generally suffer from low treatment efficiency, and the use of horizontal treatment equipment often results in a large footprint. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model presents a high-efficiency sludge thickening system. By employing a vertical screw dewatering machine, the system reduces the floor space required for the equipment. Simultaneously, it utilizes multiple devices such as a flocculation tank, a thickening tank, a screw dewatering machine, and a belt filter press to work synergistically, aiming to improve sludge thickening efficiency and thus providing a new economical, efficient, and environmentally friendly solution for sludge treatment.

[0004] The technical solution adopted in this utility model is: a high-efficiency sludge thickening system, which includes a flocculation tank, a sludge thickening tank, a vertical screw dewatering machine and a belt filter press;

[0005] The outlet of the flocculation tank is connected to the inlet of the sludge thickening tank via a pipeline, and the outlet of the sludge thickening tank is connected to the sludge inlet of the vertical screw dewatering machine; the sludge outlet pipe of the vertical screw dewatering machine is connected to the sludge receiving trough of the belt filter press.

[0006] The vertical screw dewatering machine has a vertically arranged conveying screw that is driven by a motor.

[0007] The outlet of the flocculation tank is located at the bottom of the flocculation tank, and the outlet of the thickening tank is located at the bottom of the sludge thickening tank.

[0008] The sludge inlet is located at the bottom of the vertical screw dewatering machine, and the sludge outlet is located at the top of the vertical screw dewatering machine; the bottom of the vertical screw dewatering machine is also provided with a wastewater outlet.

[0009] The belt filter press has a mud receiving trough connected to the inlet conveyor belt, and a mud outlet is provided at the bottom of the belt filter press.

[0010] Compared with the prior art, this utility model has the following advantages: The system includes a flocculation tank, a sludge thickening tank, a vertical screw dewatering machine, and a belt filter press; the screw dewatering machine in the system is vertical, avoiding the disadvantages of horizontal equipment layout, such as large footprint; at the same time, after the sludge is thickened in the sludge thickening tank, it is further dewatered by the vertical screw dewatering machine, changing the sludge from a paste to a semi-solid sludge, and then transported to the belt filter press for further dewatering, further reducing the water content in the sludge; it can significantly increase the unit processing capacity of the filter press and shorten the single filter press cycle. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 It is a highly efficient sludge thickening system.

[0013] In the diagram: 1. Flocculation tank, 2. Flocculation tank outlet, 3. Sludge thickening tank, 4. Thickening tank outlet, 5. Thickening tank inlet, 6. Sludge inlet, 7. Wastewater outlet, 8. Sludge discharge pipe, 9. Motor, 10. Vertical screw dewatering machine, 11. Conveying screw, 12. Belt filter press, 13. Sludge receiving trough, 14. Inlet conveyor, 15. Sludge outlet. Detailed Implementation

[0014] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0017] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0018] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0019] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0020] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0021] A high-efficiency sludge thickening system includes a flocculation tank 1, a sludge thickening tank 3, a vertical screw dewatering machine 10, and a belt filter press 12. The flocculation tank outlet 2 of the flocculation tank 1 is connected to the thickening tank inlet 5 of the sludge thickening tank 3 via a pipeline, and the thickening tank outlet 4 of the sludge thickening tank 3 is connected to the sludge inlet 6 of the vertical screw dewatering machine 10; the flocculation tank outlet 2 is located at the bottom of the flocculation tank 1, and the thickening tank outlet 4 is located at the bottom of the sludge thickening tank 3.

[0022] The sludge discharge pipe 8 of the vertical screw dewatering machine 10 is connected to the sludge receiving trough 13 of the belt filter press 12; the sludge inlet is located at the bottom of the vertical screw dewatering machine 10, and the sludge discharge pipe 8 is located at the top of the vertical screw dewatering machine 10; a wastewater outlet 7 is also provided at the bottom of the vertical screw dewatering machine 10. The sludge receiving trough 13 of the belt filter press 12 is connected to the inlet conveyor belt 14, and a sludge outlet 15 is provided at the bottom of the belt filter press 12. The conveying screw 11 in the vertical screw dewatering machine 10 is vertically arranged and driven by a motor 9.

[0023] When operating with the above technical solution, chemicals are added to the sludge water in flocculation tank 1 for flocculation. After flocculation, the sludge is discharged from flocculation tank outlet 2 and enters sludge thickening tank 3. After being thickened in the thickening tank, the sludge enters the dewatering machine through sludge inlet 6 at the bottom of the vertical screw dewatering machine 10. The conveying screw 11 rotates under the drive of the motor, dewatering the sludge while it is being conveyed upwards. The dewatered sludge is discharged from sludge outlet pipe 8 at the top of the vertical screw dewatering machine 10 and is connected to the inlet conveyor belt 12 through sludge receiving trough 13. Then, the sludge is further dewatered by belt filter press 12, and finally, the sludge is discharged from sludge outlet 15.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high-efficiency sludge thickening system, characterized in that: The system includes a flocculation tank (1), a sludge thickening tank (3), a vertical screw dewatering machine (10), and a belt filter press (12). The flocculation tank outlet (2) of the flocculation tank (1) is connected to the thickening tank inlet (5) of the sludge thickening tank (3) through a pipeline, and the thickening tank outlet (4) of the sludge thickening tank (3) is connected to the sludge inlet (6) of the vertical screw dewatering machine (10); the sludge outlet pipe (8) of the vertical screw dewatering machine (10) is connected to the sludge receiving tank (13) of the belt filter press (12). The vertical screw dewatering machine (10) has a vertically arranged conveying screw (11) driven by a motor (9).

2. The high-efficiency sludge thickening system according to claim 1, characterized in that: The outlet (2) of the flocculation tank is located at the bottom of the flocculation tank (1), and the outlet (4) of the thickening tank is located at the bottom of the sludge thickening tank (3).

3. The high-efficiency sludge thickening system according to claim 1, characterized in that: The sludge inlet is located at the bottom of the vertical screw dewatering machine (10), and the sludge outlet pipe (8) is located at the top of the vertical screw dewatering machine (10); the bottom of the vertical screw dewatering machine (10) is also provided with a sewage outlet (7).

4. The high-efficiency sludge thickening system according to claim 1, characterized in that: The mud receiving trough (13) of the belt filter press (12) is connected to the inlet conveyor belt (14), and the bottom of the belt filter press (12) is provided with a mud outlet (15).

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