Sewage purification vehicle

Abstract

The utility model discloses a sewage purification vehicle which comprises a vehicle body, a sewage purification vehicle system is arranged in the vehicle body, the sewage purification system comprises a vacuum screen drum, a rotor pump used for pumping sludge water into the vacuum screen drum is arranged on the vacuum screen drum, an outlet of the vacuum screen drum is communicated with a stirring pool through a sludge pipeline, and the stirring pool is communicated with a water pump. A dosing assembly communicated with the stirring pool is arranged on one side of the stirring pool, an outlet of the stirring pool is connected with a stacked screw machine, the dosing assembly comprises a dosing box, at least one partition plate is arranged in the dosing box to divide the interior of the dosing box into different cavities, and a first stirrer corresponding to the cavity is arranged in each cavity; the top end of the dosing box is provided with a dosing device which is respectively connected with each cavity through a pipeline and an electromagnetic valve, and one side of the dosing box is provided with a water supply box which is connected with the dosing device through a water pump. According to the utility model, PAM and PAC can be independently stirred respectively, so that the two medicaments can be uniformly dissolved according to the proportion, and respective optimal flocculation effects are achieved.

Description

Technical Field

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

[0002] As a new generation of sludge treatment equipment, the sewage purification vehicle can extract the sludge from the sludge pool and mix the extracted sludge with the liquid medicine in the mixing tank, so that the water and solid matter in the sludge are separated to a certain extent, and the water body is purified. Then the sludge treated with drugs is dehydrated by the snail stacker on the sewage purification vehicle, and the solid sludge and liquid are discharged through the liquid outlet and slag outlet at both ends of the snail stacker, respectively, to achieve the purification and dehydration of the sludge.

[0003] Most of the existing sewage purification vehicles use PAM (polyacrylamide) to flocculate the sludge. The sludge and PAM solution are fully stirred in the mixing tank, and solid-liquid separation is performed after flocculation. When the flocculation effect is not good, PAC (polyaluminium chloride) needs to be added to assist flocculation. Both PAM and PAC need to be dissolved into a solution by stirring before they can be used. The dosing mechanism of the existing sewage purification vehicle generally has only one stirring chamber. When PAC needs to be added, it can only be added to the stirring chamber of PAM and share a stirring chamber with PAM, but the two solutions have different ratios, and stirring together will affect the flocculation effect. Utility Model Content

[0004] The utility model aims to provide a sewage purification vehicle, which can stir PAM and PAC separately, ensure that the two agents can be evenly dissolved according to the proportion, and achieve their respective best flocculation effects.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a sewage purification vehicle, including a vehicle body, a sewage purification system is arranged in the vehicle body, the sewage purification system includes a vacuum screen cylinder, the vacuum screen cylinder is provided with a rotor pump for pumping sludge water into it, the outlet of the vacuum screen cylinder is connected to a stirring tank through a sludge pipe, a dosing component connected to the stirring tank is provided on one side of the stirring tank, a screw stacking machine is connected to the outlet of the stirring tank, the dosing component includes a dosing box, at least one partition is provided in the dosing box to separate different cavities therein, each cavity is provided with a first agitator corresponding thereto, a doser connected to each cavity through a pipeline and a solenoid valve is provided at the top of the dosing box, and a water supply tank connected to the doser through a water pump is provided on one side of the dosing box.

[0006] A further improvement of the utility model is that the partition is provided with two, and the medicine adding box is divided into three cavities, and an overflow port is provided at the upper end of one of the partitions to allow the cavities on both sides to overflow and connect.

[0007] A further improvement of the utility model is that two liquid level sensors for detecting high and low liquid levels are respectively provided in the three chambers, and the liquid level sensors are electrically connected to the dosing device and the water pump through a controller.

[0008] A further improvement of the utility model is that a liquid inlet tank is provided on one side of the stirring tank, and the interior of the liquid inlet tank is divided into a sewage inlet tank and a dosing tank in sequence along the sludge movement direction by an overflow plate, the sludge pipeline is connected to the sewage inlet tank, the dosing box is connected to the dosing tank through a dosing pipe, and the lower end of the dosing tank is provided with a connecting port connected to the stirring tank.

[0009] A further improvement of the utility model is that a mounting port is provided on the bottom plate of the sewage inlet trough, a sealing plate is detachably sealed in the mounting port, the sludge pipe is connected to the sewage inlet trough through the sealing plate, a filter screen is provided above the sealing plate, an overflow pipe is provided in the sewage inlet trough, and the upper opening height of the overflow pipe is higher than the upper end height of the overflow plate and lower than the pool opening height of the liquid inlet pool.

[0010] A further improvement of the utility model is that a second agitator is provided in the stirring tank, and an outer convex portion is provided at the upper end of the side where the stirring tank is connected to the screw stacking machine. The outer convex portion includes a convex plate inclined upward, and the outlet of the stirring tank is arranged on the convex plate.

[0011] A further improvement of the utility model is that a spray pipe is provided above the screw stacking machine, and a plurality of spray heads are provided on the spray pipe at intervals.

[0012] A further improvement of the present invention is that the spiral shaft of the snail stacker is inclined, and the height of the end thereof close to the stirring tank is lower than the height of the end thereof away from the stirring tank, a mud guide plate is provided below the side of the snail stacker away from the stirring tank, and a drainage outlet is provided below the side of the snail stacker close to the stirring tank.

[0013] The beneficial effects of the utility model are:

[0014] The utility model divides different cavities by arranging partitions in the medicine adding box, and can stir PAM and PAC separately through different cavities, thereby ensuring that the two medicines can be evenly dissolved according to the proportion and achieve their respective best flocculation effects.

[0015] The utility model is provided with two partitions. When in use, the control valve on one of the two cavities connected by the overflow port can be closed, and the control valve on the other cavity can be opened to disconnect one of the cavities from the stirring tank. The overflow port is designed so that the liquid medicines in the two cavities are concentrated and connected to the stirring tank through one cavity. When adding PAM powder, it is only added to the cavity with the closed control valve. After the PAM solution is initially dissolved through the cavity with the closed control valve, the overflow is used to enter the other cavity for continuous stirring to extend the dissolution time of the PAM, so that the PAM can be fully matured. The matured PAM is more likely to combine with the particulate matter in the water to form a larger flocculent body, which is helpful to improve the flocculation effect.

[0016] The utility model is provided with a vacuum screen cylinder, which can filter the extracted sludge, remove larger suspended matter, floating matter and other solid substances in the sewage, reduce damage and blockage to subsequent treatment equipment, and extend the service life of the equipment.

[0017] In the utility model, the interior of the liquid inlet tank is divided into a sewage inlet tank and a dosing tank in sequence along the sludge moving direction by an overflow plate, and the remaining impurities in the sewage inlet tank are filtered again by a filter net in the sewage inlet tank, and the sludge after the second filtration enters the dosing tank and is mixed with the agent through overflow, and then enters the stirring tank through the connecting port at the lower end of the dosing tank, thereby increasing the flow path of the sludge and improving the mixing effect of the sludge with the agent. The detachable sealing plate can facilitate the cleaning of the debris generated by the filtration in the sewage inlet tank, and the overflow pipe can limit the height of the sludge in the sewage inlet tank to prevent the sludge from overflowing from the sewage inlet tank notch to pollute the vehicle when the suction volume is large. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic side view of the structure of the utility model.

[0019] Figure 2 It is a schematic top view of the sewage purification system structure of the utility model.

[0020] Figure 3 It is a three-dimensional schematic diagram of the structure of the sewage purification system of the utility model.

[0021] Figure 4 It is a partially enlarged schematic diagram of the medicine adding box structure of the utility model.

[0022] Figure 5 It is a partially enlarged schematic diagram of the liquid inlet pool structure of the utility model.

[0023] In the figure, 1-car body, 2-vacuum screen cylinder, 3-sludge pipeline, 4-mixing tank, 5-screw stacker, 6-dosing box, 7-first agitator, 8-dosing device, 9-partition, 10-liquid inlet tank, 11-overflow plate, 12-sewage inlet trough, 13-dosing trough, 14-dosing pipe, 15-overflow port, 16-filter screen, 17-overflow pipe, 18-second agitator, 19-convex plate, 20-spray pipe, 21-mud guide plate. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] Example 1: Combination Figures 1 to 5 It can be seen that a sewage purification vehicle includes a vehicle body 1, a sewage purification system is arranged in the vehicle body 1, and the sewage purification system includes a vacuum screen cylinder 2, a rotor pump is arranged on the vacuum screen cylinder 2 for pumping sludge water into it, the outlet of the vacuum screen cylinder 2 is connected to the stirring tank 4 through a sludge pipeline 3, a dosing component connected to the stirring tank 4 is arranged on one side, and a screw stacking machine 5 is connected to the outlet of the stirring tank 4, and the dosing component includes a dosing box 6, and at least one partition 9 is arranged in the dosing box 6 to separate different cavities therein, and each cavity is provided with a first agitator 7 corresponding thereto, and a dosing device 8 connected to each cavity through a pipeline and a solenoid valve is arranged at the top of the dosing box 6, and a water supply tank connected to the dosing device 8 through a water pump is arranged on one side of the dosing box 6. Each cavity is connected to the stirring tank 4 through a dosing pipe 14, and a control valve corresponding to each cavity is arranged on the dosing pipe 14. The dosing pipe 14 is a UPVC pipe, and the control valve is a UPVC ball valve. The vacuum screen cylinder 2 is a conventional vacuum screen cylinder for sewage treatment in the prior art.

[0026] Preferably, two partitions 9 are provided, and three cavities are separated in the dosing box 6. An overflow port 15 is provided at the upper end of one of the partitions 9 to allow the cavities on both sides to overflow and connect. Two cavities in the three cavities connected by the overflow port 15 are used to store a larger amount of PAM solution, and the remaining single cavity is used to store the stirred PAC solution.

[0027] When in use, the two cavities connected by the overflow port 15 can close the control valve on one of the cavities, open the control valve on the other cavity, and disconnect one of the cavities from the stirring tank 4. Through the design of the overflow port, the liquid medicine in the two cavities is concentrated and connected to the stirring tank through one cavity. When adding PAM powder, it is only added to the cavity with the closed control valve. After the PAM solution is initially dissolved through the cavity with the closed control valve, the overflow is used to enter the other cavity for continued stirring to extend the dissolution time of PAM, so that the PAM can be fully matured. The matured PAM is more likely to combine with particulate matter in the water to form larger flocs, which helps to improve the flocculation effect.

[0028] Two liquid level sensors are provided in each of the three chambers for detecting high and low liquid levels respectively. The liquid level sensors are electrically connected to the dosing device 8 and the water pump through the controller. The liquid level of the liquid in the chamber can be detected and timely adjusted when the liquid level is too high or too low.

[0029] A liquid inlet tank 10 is provided on one side of the stirring tank 4. The liquid inlet tank 10 is divided into a sewage inlet tank 12 and a dosing tank 13 in sequence along the sludge moving direction by an overflow plate 11. The sludge pipeline 3 is connected to the sewage inlet tank 12. The dosing tank 6 is connected to the dosing tank 13 through a dosing pipe 14. The lower end of the dosing tank 13 is provided with a connecting port connected to the stirring tank 4. The upper top surface of the overflow plate 11 is lower than the tank opening surface of the liquid inlet tank 10.

[0030] A mounting port is provided on the bottom plate of the sewage inlet trough 12, and a sealing plate is detachably sealed in the mounting port. The sludge pipe 3 is connected to the sewage inlet trough 12 through the sealing plate. A filter screen 16 is provided above the sealing plate. An overflow pipe 17 is provided in the sewage inlet trough 12. The upper opening height of the overflow pipe 17 is higher than the upper end height of the overflow plate 11 and lower than the pool opening height of the liquid inlet pool 10. The overflow pipe 17 can limit the height of the sludge in the sewage inlet trough 12 to prevent the sludge from overflowing from the slot of the sewage inlet trough 12 and polluting the vehicle when the sludge pump suction volume is large.

[0031] A second stirrer 18 is provided in the stirring tank 4, and an outer convex portion is provided at the upper end of one side where the stirring tank 4 is connected to the snail stacking machine 5, and the outer convex portion includes a convex plate 19 inclined upward, and the outlet of the stirring tank 4 is arranged on the convex plate 19. Through the outer convex portion located at the upper end of one side of the stirring tank 4, the sludge entering the snail stacking machine 5 can be fully flocculated through overflow, thereby increasing the flow time of the sludge in the stirring tank 4 and improving the drying effect of the snail stacking machine.

[0032] The screw stacking machine 5 is a conventional screw stacking machine for sewage purification in the prior art. It is a solid-liquid separation device that uses the screw extrusion principle to achieve extrusion and dehydration of sludge through the strong extrusion force generated by the changes in the screw diameter and pitch, and the tiny gap between the floating ring and the fixed ring.

[0033] A spray pipe 20 is provided above the snail stacking machine 5, and a plurality of spray heads are provided at intervals on the spray pipe 20. The spiral shaft of the snail stacking machine 5 is inclined, and the height of the end thereof close to the stirring tank 4 is lower than the height of the end thereof away from the stirring tank 4. A mud guide plate 21 is provided below the side of the snail stacking machine 5 away from the stirring tank 4, and a liquid discharge outlet is provided below the side of the snail stacking machine 5 close to the stirring tank 4.

[0034] The working principle of a sewage purification vehicle provided by the utility model is as follows: when working, firstly, PAM and PAC solutions are respectively configured into two cavities in the dosing box 6 through the dosing device 8, and the first agitator 7 is turned on, and the rotor pump is started to suck the sludge. The sludge is filtered through the vacuum screen cylinder 2 and enters the sewage inlet trough 12 of the liquid inlet tank 10, and then enters the dosing tank 13 through overflow to mix with the prepared PAM solution and then enters the stirring tank 4 for further stirring, and the flocculation effect is observed. When the effect is not good, PAC solution is introduced into the dosing tank 13 to assist flocculation, and the flocculated sludge is separated from mud and water through the screw stacking machine 5, and the mud cake is discharged through the mud guide plate 21 at one end of the screw stacking machine 5, and the filtrate flows out through the discharge outlet at the other end of the screw stacking machine 5.

[0035] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. Any equivalent structure or equivalent process transformation made using the contents of the utility model specification and the accompanying drawings, or directly or indirectly used in other related technical fields, are similarly included in the patent protection scope of the present utility model.

Claims

1. A sewage purification vehicle, comprising a vehicle body (1), characterized in that: The vehicle body (1) is provided with a sewage purification system, the sewage purification system comprising a vacuum screen drum (2), the vacuum screen drum (2) being provided with a rotor pump for pumping sludge water therein, the outlet of the vacuum screen drum (2) being connected to a stirring tank (4) via a sludge pipeline (3), one side of the stirring tank (4) being provided with a dosing assembly connected thereto, the outlet of the stirring tank (4) being connected to a screw stacking machine (5), the dosing assembly comprising a dosing box (6), the dosing box (6) being provided with at least one partition (9) for dividing it into different cavities, each cavity being provided with a first agitator (7) corresponding thereto, the top of the dosing box (6) being provided with a dosing device (8) respectively connected to each cavity via a pipeline and an electromagnetic valve, the one side of the dosing box (6) being provided with a water supply tank connected to the dosing device (8) via a water pump, the stirring tank (4) being provided with a A liquid inlet pool (10) is provided on the side, and the inside of the liquid inlet pool (10) is divided into a sewage inlet trough (12) and a dosing trough (13) in sequence along the sludge moving direction by an overflow plate (11). The sludge pipeline (3) is connected to the sewage inlet trough (12), and the dosing box (6) is connected to the dosing trough (13) through a dosing pipe (14). The lower end of the dosing trough (13) is provided with a connecting port connected to the stirring tank (4). A mounting port is provided on the bottom plate of the sewage inlet trough (12), and a sealing plate is detachably and hermetically connected in the mounting port. The sludge pipeline (3) is connected to the sewage inlet trough (12) through the sealing plate. A filter screen (16) is provided above the sealing plate. An overflow pipe (17) is provided in the sewage inlet trough (12), and the upper opening height of the overflow pipe (17) is higher than the upper end height of the overflow plate (11) and lower than the pool opening height of the liquid inlet pool (10).

2. A sewage purification vehicle according to claim 1, characterized in that: The partitions (9) are provided with two paths, and the inside of the medicine adding box (6) is divided into three cavities. An overflow port (15) is provided at the upper end of one of the partitions (9) so that the cavities on both sides thereof are connected by overflow.

3. A sewage purification vehicle according to claim 1, characterized in that: Two liquid level sensors are provided in each cavity for detecting high and low liquid levels respectively, and the liquid level sensors are electrically connected to the dosing device (8) and the water pump via a controller.

4. A sewage purification vehicle according to claim 1, characterized in that: A second stirrer (18) is provided in the stirring tank (4), and an outer convex portion is provided at an upper end of a side of the stirring tank (4) connected to the screw stacking machine (5), wherein the outer convex portion comprises an upwardly inclined convex plate (19), and an outlet of the stirring tank (4) is arranged on the convex plate (19).

5. The sewage purification vehicle according to claim 1, characterized in that: A spray pipe (20) is provided above the screw stacking machine (5), and a plurality of spray heads are provided at intervals on the spray pipe (20).

6. A sewage purification vehicle according to claim 1, characterized in that: The spiral shaft of the screw stacking machine (5) is arranged obliquely, and the height of the end thereof close to the stirring tank (4) is lower than the height of the end thereof away from the stirring tank (4). A mud guide plate (21) is provided below the side of the screw stacking machine (5) away from the stirring tank (4), and a liquid discharge outlet is provided below the side of the screw stacking machine (5) close to the stirring tank (4).

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