Sewage treatment device with sludge recovery function

Abstract

This utility model provides a wastewater treatment device with sludge recycling function, relating to the field of wastewater treatment technology. It includes a wastewater treatment tank and a sludge collection tank assembly. A sludge scraper chain drive motor is fixedly installed on the upper side of the wastewater treatment tank. A sludge scraper chain drive disc is coaxially fixedly installed on the drive shaft. A sludge transfer box is fixedly installed at the lower end of the wastewater treatment tank. A wastewater transfer pipe is provided at the lower end of the sludge transfer box, and the lower end of the wastewater transfer pipe is connected to the sludge collection tank assembly. This utility model first introduces wastewater into a heavy sludge collection tank for initial sedimentation. The upper layer of wastewater enters the wastewater treatment tank from one side. The sludge scraper chain drive motor is activated, driving the drive disc to rotate. The drive disc's transmission chain drives the lower sludge scraper chain drive disc to rotate, thereby enabling the sludge scraper chain to scrape away some of the settled sludge, scraping it towards the sludge transfer tank, and then connecting it to the sludge collection tank assembly via the wastewater transfer pipe.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and more specifically, to a wastewater treatment device with sludge recovery function. Background Technology

[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. For example, a sludge removal device for wastewater treatment, as disclosed in application number CN201821157059.1, includes a wastewater treatment tank. The tank has an inlet pipe on its upper left side and an outlet pipe on its upper right side. An installation groove is located at the lower center of the front side of the tank. A partition is located inside the installation groove, and a movable plate is located at the front end of the partition. Electric telescopic rods are located at the four corners of the rear side of the movable plate, and the rear ends of the electric telescopic rods are connected to the front side of the wastewater treatment tank. This invention avoids the need for drainage operations when cleaning sludge from the wastewater treatment device, saving time required for water discharge, ensuring uninterrupted wastewater treatment, improving wastewater treatment efficiency, and eliminating the need for traditional manual cleaning methods for sludge removal. This reduces the labor load on users and lowers wastewater treatment costs.

[0003] However, in practice, the above-mentioned technical solutions can only treat sludge uniformly, which results in incomplete treatment of mixed sludge and inadequate wastewater treatment. Utility Model Content

[0004] The main objective of this invention is to provide a wastewater treatment device with sludge recycling function, which can effectively solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A wastewater treatment device with sludge recovery function includes a wastewater treatment tank and a sludge collection tank assembly. A sludge scraper drive motor is fixedly installed on the upper side of the wastewater treatment tank, and a motor drive disk is fixedly installed on the output end of the sludge scraper drive motor. A sludge scraper drive shaft is rotatably installed on the inner surface of the wastewater treatment tank, and a sludge scraper drive disk is coaxially fixedly installed on the sludge scraper drive shaft. A sludge scraper chain is sleeved on the sludge scraper drive disk. A sludge transfer box is fixedly installed at the lower end of the wastewater treatment tank, and a wastewater transfer pipe is provided at the lower end of the sludge transfer box. The lower end of the wastewater transfer pipe is connected to the sludge collection tank assembly.

[0007] Preferably, a heavy sludge collection box is integrated into the side of the sewage treatment tank, and a heavy sludge collection trough is provided inside the heavy sludge collection box.

[0008] Preferably, a drive chain is fitted onto the motor drive disc, and a sewage screening cylinder is fixedly installed inside the sewage treatment tank.

[0009] Preferably, the sludge transfer box is provided with a sludge transfer trough, and a floating sludge aeration pump is fixedly installed at the lower end of the sludge collection trough assembly.

[0010] Preferably, the sludge collection tank assembly includes: a sludge collection tank shell, a sludge agitator motor mounting bracket, a sludge agitator motor, a sludge inlet, a sludge agitator grab plate, a sludge collection tank cover, a sludge overflow screen plate, a sludge isolation plate, and a sludge splash guard plate.

[0011] The sludge collection box has a sludge inlet on one side of its outer shell. One end of the sludge inlet is connected to the sewage transfer pipe. A sludge agitator motor mounting bracket is fixedly installed on the upper end of the sludge collection box. A sludge agitator motor is fixedly installed on the upper end of the sludge agitator motor mounting bracket. A sludge agitator gripper is fixedly installed at the lower end of the output end of the sludge agitator motor.

[0012] The outer shell of the sludge collection box is integrally provided with a sludge overflow screen plate and a sludge isolation plate in the middle. The lower end of the sludge isolation plate is integrally provided with a sludge splash guard plate. The upper end of the outer shell of the sludge collection box and located on one side of the sludge isolation plate are fixedly installed with a sludge collection box cover.

[0013] Preferably, a sludge and wastewater discharge pipe is provided inside the outer shell of the sludge collection box and below the cover of the sludge collection box.

[0014] Preferably, an aeration inlet is fixedly installed inside the outer shell of the sludge collection box, and an integrated top cover is provided at the upper end of the aeration inlet, with an aeration pump network fixedly installed in the middle of the top cover.

[0015] Preferably, the lower end of the aeration pipe is provided with several drainage holes, and the lower end of the aeration pipe is connected to the floating mud aeration pump.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) This utility model first introduces sewage into the heavy sludge collection tank for sedimentation. The upper layer of sewage enters the sewage treatment tank from one side. The sludge scraper chain drive motor is started to drive the motor drive disk to rotate. The drive disk drives the chain to drive the lower sludge scraper chain drive disk to rotate, thereby enabling the sludge scraper chain to scrape some of the bottom sludge and scrape it towards the sludge transfer tank. The sludge is then connected to the sludge collection tank assembly through the sewage transfer pipe.

[0018] (2) This utility model first starts the floating mud aeration pump to introduce aeration into the aeration upper pipe, and then aerates it through the aeration pump network. The sludge entering the sewage is stirred to the upper layer. The mud and sand stirring motor is started to drive the mud and sand stirring grab plate to push the sludge to the mud and sand overflow screen plate side. It is collected through the partition with the mud and sand isolation plate. The excess water is discharged from the hole at the lower end of the aeration upper pipe and the mud and sand excess water discharge pipe. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0021] Figure 3 This is a three-dimensional schematic diagram of the sludge collection tank assembly in this utility model;

[0022] Figure 4 This is a side view of the sludge collection tank assembly in this utility model;

[0023] Figure 5 This utility model Figure 4 A three-dimensional schematic diagram of a partial cross-sectional structure of line aa in the middle.

[0024] In the diagram: 1. Wastewater treatment tank; 2. Sludge scraper chain drive motor; 3. Motor drive disc; 4. Drive disc transmission chain; 5. Sludge scraper chain drive disc; 6. Sludge scraper chain drive shaft; 7. Wastewater screening screen cylinder; 8. Sludge scraper chain; 9. Sludge transfer trough; 10. Sludge transfer box; 11. Sludge collection trough assembly; 1101. Sludge collection box shell; 1102. Sludge agitator motor mounting bracket; 1103. Sludge agitator motor; 110 4. Sediment feed inlet; 1105. Sediment agitator; 1106. Sediment collection box cover; 1107. Aeration inlet; 1108. Inlet cover; 1109. Aeration pump screen; 1110. Sediment overflow screen; 1111. Sediment isolation plate; 1112. Sediment splash guard; 1113. Sediment wastewater discharge pipe; 12. Heavy sludge collection trough; 13. Heavy sludge collection box; 14. Wastewater transfer pipe; 15. Floating sludge aeration pump. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0026] like Figure 1 , Figure 2 As shown in the figure, this utility model embodiment proposes a sewage treatment device with sludge recycling function, including a sewage treatment tank 1 and a sludge collection tank assembly 11. A sludge scraper drive motor 2 is fixedly installed on the upper side of the sewage treatment tank 1, and a motor drive disk 3 is fixedly installed on the output end of the sludge scraper drive motor 2. A sludge scraper drive shaft 6 is rotatably installed on the inner surface of the sewage treatment tank 1, and a sludge scraper drive disk 5 is coaxially fixedly installed on the sludge scraper drive shaft 6. A sludge scraper chain 8 is sleeved on the sludge scraper drive disk 5. The lower end of the sewage treatment tank 1 is fixed A sludge transfer box 10 is installed, and a sewage transfer pipe 14 is provided at the lower end of the sludge transfer box 10. The lower end of the sewage transfer pipe 14 is connected to a sludge collection tank assembly 11. A heavy sludge collection box 13 is integrated on the side of the sewage treatment tank 1. A heavy sludge collection tank 12 is opened inside the heavy sludge collection box 13. A drive disc transmission chain 4 is sleeved on the motor drive disc 3. A sewage screening screen cylinder 7 is fixedly installed inside the sewage treatment tank 1. A sludge transfer trough 9 is opened inside the sludge transfer box 10. A floating sludge aeration pump 15 is fixedly installed at the lower end of the sludge collection tank assembly 11.

[0027] In the above technical solution, the sewage is first fed into the heavy sludge collection tank 12 for sedimentation. The upper layer of sewage enters the sewage treatment tank 1 from one side. The sludge scraper chain drive motor 2 is started to drive the motor drive disk 3 to rotate. The drive disk drives the chain 4 to drive the lower sludge scraper chain drive disk 5 to rotate. This allows the sludge scraper chain 8 to scrape some of the settled sludge and scrape it towards the sludge transfer tank 9. The sludge is then connected to the sludge collection tank assembly 11 through the sewage transfer pipe 14.

[0028] like Figure 1 , Figure 3 , Figure 4 , Figure 5As shown, the sludge collection tank assembly 11 includes: a sludge collection tank shell 1101, a sludge agitator motor mounting bracket 1102, a sludge agitator motor 1103, a sludge inlet 1104, a sludge agitator grab plate 1105, a sludge collection tank cover 1106, a sludge overflow screen plate 1110, a sludge isolation plate 1111, and a sludge splash guard plate 1112; a sludge inlet 1104 is provided on one side of the sludge collection tank shell 1101, one end of which is connected to the sewage transfer pipe 14; a sludge agitator motor mounting bracket 1102 is fixedly installed on the upper end of the sludge collection tank shell 1101, a sludge agitator motor 1103 is fixedly installed on the upper end of the sludge agitator motor mounting bracket 1102, and a sludge agitator grab plate 1105 is fixedly installed at the lower end of the output end of the sludge agitator motor 1103; the sludge collection tank shell 1104 has a sludge inlet 1104, a sludge agitator grab plate 1105, and a sludge collection tank cover 1106; the sludge collection tank shell 1104 has a sludge inlet 1104, a sludge agitator motor grab plate 1105, and a sludge agitator motor mounting bracket 1102. The sludge collection box 1101 is equipped with an integrated sludge overflow screen plate 1110 and a sludge isolation plate 1111. The lower end of the sludge isolation plate 1111 is equipped with an integrated sludge splash guard 1112. The upper end of the sludge collection box shell 1101 and the side of the sludge isolation plate 1111 are fixedly installed with a sludge collection box cover 1106. The sludge collection box shell 1101 and the lower end of the sludge collection box cover 1106 are equipped with a sludge waste water discharge pipe 1113. The sludge collection box shell 1101 is fixedly installed with an aeration upper pipe inlet 1107. The upper end of the aeration upper pipe inlet 1107 is equipped with an integrated upper pipe inlet cover 1108. The upper pipe inlet cover 1108 is fixedly installed with an aeration pump net 1109 in the middle. The lower end of the aeration upper pipe inlet 1107 is provided with several drainage holes. The lower end of the aeration upper pipe inlet 1107 is connected to the floating sludge aeration pump 15.

[0029] In the above technical solution, the sludge entering the sewage is stirred to the upper layer by first starting the floating sludge aeration pump 5 to introduce aeration into the aeration upper pipe port 1107 and aeration through the aeration pump network 1109. The sludge is stirred to the upper layer by starting the sludge stirring motor 1103 to drive the sludge stirring grab plate 1105 to push the sludge to the side of the sludge overflow screen plate 1110 and collected through the partition with the sludge isolation plate 1111. Excess water is discharged from the hole at the lower end of the aeration upper pipe port 1107 and the sludge excess water discharge pipe 1113.

[0030] The working principle of a wastewater treatment device with sludge recovery function:

[0031] This utility model first introduces wastewater into the heavy sludge collection tank 12 for sedimentation. The upper layer of wastewater enters the wastewater treatment tank 1 from one side. The sludge scraper chain drive motor 2 is started to drive the motor drive disc 3 to rotate. The drive disc drives the chain 4 to drive the lower sludge scraper chain drive disc 5 to rotate, thereby enabling the sludge scraper chain 8 to scrape some of the settled sludge towards the sludge transfer tank 9 and connect to the sludge collection tank assembly 11 through the wastewater transfer pipe 14.

[0032] The process begins by starting the floating mud aeration pump 5 to introduce aeration into the aeration upper pipe port 1107, and then aerating it through the aeration pump network 1109. This agitates the sludge entering the sewage to the upper layer. The mud and sand agitation motor 1103 drives the mud and sand agitation grab plate 1105 to push the sludge towards the mud and sand overflow screen plate 1110. The sludge is collected through the partition with the mud and sand isolation plate 1111. Excess water is discharged from the hole at the lower end of the aeration upper pipe port 1107 and the mud and sand excess water discharge pipe 1113.

[0033] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A wastewater treatment device with sludge recovery function, comprising a wastewater treatment tank (1) and a sludge collection tank assembly (11), characterized in that: A sludge scraper drive motor (2) is fixedly installed on the upper side of the sewage treatment tank (1). A motor drive disk (3) is fixedly installed at the output end of the sludge scraper drive motor (2). A sludge scraper drive shaft (6) is rotatably installed on the inner surface of the sewage treatment tank (1). A sludge scraper drive disk (5) is coaxially fixedly installed on the sludge scraper drive shaft (6). A sludge scraper chain (8) is sleeved on the sludge scraper drive disk (5). A sludge transfer box (10) is fixedly installed at the lower end of the sewage treatment tank (1). A sewage transfer pipe (14) is provided at the lower end of the sludge transfer box (10). A sludge collection tank assembly (11) is connected to the lower end of the sewage transfer pipe (14).

2. The sewage treatment device with sludge recovery function according to claim 1, characterized in that: The sewage treatment tank (1) is integrated with a heavy sludge collection box (13) on its side, and a heavy sludge collection trough (12) is provided inside the heavy sludge collection box (13).

3. The sewage treatment device with sludge recovery function according to claim 2, characterized in that: The motor drive disk (3) is fitted with a drive disk transmission chain (4), and a sewage screening cylinder (7) is fixedly installed inside the sewage treatment tank (1).

4. A wastewater treatment device with sludge recovery function according to claim 3, characterized in that: The sludge transfer box (10) is provided with a sludge transfer trough (9), and a floating sludge aeration pump (15) is fixedly installed at the lower end of the sludge collection trough assembly (11).

5. A wastewater treatment device with sludge recovery function according to claim 4, characterized in that: The sludge collection tank assembly (11) includes: a sludge collection box shell (1101), a mud and sand agitator motor mounting bracket (1102), a mud and sand agitator motor (1103), a mud and sand inlet (1104), a mud and sand agitator grab plate (1105), a mud and sand collection box cover (1106), a mud and sand overflow screen plate (1110), a mud and sand isolation plate (1111), and a mud and sand splash guard plate (1112); A sludge inlet (1104) is provided on one side of the outer shell (1101) of the sludge collection box. One end of the sludge inlet (1104) is connected to the sewage transfer pipe (14). A sludge agitator motor mounting bracket (1102) is fixedly installed on the upper end of the outer shell (1101) of the sludge collection box. A sludge agitator motor (1103) is fixedly installed on the upper end of the sludge agitator motor mounting bracket (1102). A sludge agitator gripper (1105) is fixedly installed at the lower end of the output end of the sludge agitator motor (1103). The outer shell (1101) of the sludge collection box is integrally provided with a sludge overflow screen plate (1110) and a sludge isolation plate (1111) in the middle. The lower end of the sludge isolation plate (1111) is integrally provided with a sludge splash guard plate (1112). The upper end of the outer shell (1101) of the sludge collection box and located on one side of the sludge isolation plate (1111) is fixedly installed with a sludge collection box cover (1106).

6. The sewage treatment device with sludge recovery function according to claim 5, characterized in that: A sludge and wastewater discharge pipe (1113) is provided inside the outer shell (1101) of the sludge collection box and below the upper cover (1106) of the sludge collection box.

7. A wastewater treatment device with sludge recovery function according to claim 6, characterized in that: An aeration inlet (1107) is fixedly installed inside the outer shell (1101) of the sludge collection box. An aeration inlet top cover (1108) is integrally provided at the upper end of the aeration inlet (1107). An aeration pump net (1109) is fixedly installed in the middle of the aeration inlet top cover (1108).

8. A wastewater treatment device with sludge recovery function according to claim 7, characterized in that: The aeration inlet (1107) has several drainage holes at its lower end, and the lower end of the aeration inlet (1107) is connected to the floating mud aeration pump (15).

Images