Sludge discharging and dredging system capable of achieving automatic starting and stopping and water saving functions

Abstract

The invention provides a sludge discharging and dredging system capable of achieving automatic starting and stopping and a water-saving function, and relates to the technical field of water plant sludge water treatment, the sludge discharging and dredging system comprises a sewage treatment tank, and the input end of the sewage treatment tank is connected with a sewage discharging end through a water inlet pipe; the output end of the sewage treatment tank is connected with the filter press through a connecting pipe I and a submersible sewage pump, and a sludge discharging and dredging device is arranged in the sewage treatment tank. According to the invention, the sludge discharging and dredging device is arranged in the sewage treatment tank and is driven. Therefore, the problems that in existing sewage treatment, muddy water is likely to remain on the working box, the bottom of the working box cannot be completely discharged, caking is likely to happen, cleaning is inconvenient, a large amount of water needs to be discharged and the muddy water needs to be brought out when the muddy water is discharged, and sludge accumulation is likely to be caused in the method are effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of sludge water treatment in water plants, and in particular to a sludge dredging system which can realize automatic start and stop and take into account water-saving functions. Background Art

[0002] Sewage treatment is the process of purifying sewage to meet the water quality requirements for discharge into a water body or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care, catering, etc., and is increasingly entering the daily lives of ordinary people.

[0003] However, in the existing sewage treatment, the sewage is generally left to stand, and muddy water will settle at the bottom after standing, and then be discharged. However, the muddy water is easy to remain on the working box, and the bottom is not cleanly discharged, and it is easy to clump, which is not convenient to clean up. Moreover, when discharging the muddy water, a large amount of water needs to be discharged to bring out the muddy water. This method easily causes silt accumulation. Therefore, in view of the above situation, it is urgent to develop a mud discharge and conveying system that can realize automatic start and stop and take into account water-saving functions, so as to overcome the shortcomings in current practical applications. Summary of the invention

[0004] The present invention provides a mud discharge and conveying system which can realize automatic start and stop and take into account the water-saving function, so as to solve the problem raised by the above-mentioned background technology: in the existing sewage treatment, muddy water is easy to remain on the working box, the bottom is not cleanly discharged, and it is easy to form lumps, which is not convenient to clean up. Moreover, when discharging the muddy water, a large amount of water needs to be discharged to bring out the muddy water. This method easily causes the problem of silt accumulation.

[0005] In order to solve the above technical problems, the present invention discloses a sludge dredging system that can realize automatic start and stop and take into account the water-saving function, including: a sewage treatment tank, the input end of the sewage treatment tank is connected to the sewage discharge end through a water inlet pipe, the output end of the sewage treatment tank is connected to the filter press through a connecting pipe 1 through a submersible sewage pump, and the other end of the filter press is respectively connected to a drain pipe and a filter cake output end, and an electromagnetic valve 1 is fixedly installed on the drain pipe, the drain pipe is connected to the input end of a water pump 1 through a connecting pipe 2, the output end of the water pump 1 is connected to the sewage treatment tank, and a sludge dredging device is arranged in the sewage treatment tank, and the water pump 1, the electromagnetic valve 1, the submersible sewage pump, and the filter press are respectively electrically connected to the controller. .

[0006] Preferably, the sludge discharge and conveying device includes: a liquid storage chamber, the liquid storage chamber is arranged at the top of the sewage treatment tank, and the top of the liquid storage chamber is connected with the second connecting pipe, and a sewage treatment chamber is arranged at the bottom left end of the liquid storage chamber, the left end of the sewage treatment chamber is connected with the water inlet pipe, and a liquid level gauge is fixedly installed on the left inner wall of the sewage treatment chamber, the peripheral side of the filter plate is fixedly installed on the inner wall of the sewage treatment chamber, and a through hole is arranged on the sewage treatment tank at the left end of the filter plate, and the second electromagnetic valve is arranged in the through hole, and a driving chamber is arranged at the right end of the sewage treatment chamber, and a sludge dredging mechanism is arranged in the driving chamber.

[0007] Preferably, the sludge dredging mechanism includes: a driving motor, the driving motor is fixedly mounted on the bottom end of the driving chamber, and a rotating shaft is fixedly mounted on one end of the output end of the driving motor, the other end of the rotating shaft is rotatably connected to the inner wall of the sewage treatment chamber, and a plurality of stirring rods are fixedly mounted on the rotating shaft, and the right bottom end of the sewage treatment chamber is connected to a connecting pipe.

[0008] Preferably, a sludge cleaning mechanism is also provided in the sewage treatment box, and the sludge cleaning mechanism includes: a bevel gear 1, the top end of the bevel gear 1 is fixedly connected to the cam in the processing chamber through a rotating shaft 2, the bevel gear 1 is meshingly connected with the bevel gear 2, the bevel gear 2 is fixedly mounted on the rotating shaft 1, a trapezoidal block 1 is fixedly mounted on the top right side of a short rod 1, a slope 1 which is higher on the left and lower on the right side of the trapezoidal block is provided, the bottom end of the short rod 1 is slidably connected to a slide rod 1, and the slide rod 1 is fixedly mounted on an inner wall of a slide groove 1 provided on the L-shaped rod, the left and right ends of a return spring 1 are fixed on the slide rod 1 and the inner wall of the slide groove 1, and the top end of the trapezoidal block 1 is connected to the sludge cleaning assembly.

[0009] Preferably, the sludge cleaning assembly includes: a moving rod, the left end of the moving rod passes through the processing chamber and is fixedly connected to a slider one, and the slider one is slidably connected in a slide groove two up and down, and a plurality of nozzles are arranged on the left end of the slider one, and the nozzles are connected to a water pump two fixedly installed in the liquid storage chamber through a connecting pipe three, the right end of the moving rod is slidably connected to the slide rod two up and down, the upper and lower ends of the slide rod two are fixedly installed on the inner wall of the slide groove three provided on the L-shaped rod, the upper and lower ends of the return spring two are respectively fixedly installed on the moving rod and the inner wall of the slide groove three, the trapezoidal block two is fixedly installed on the bottom end of the moving rod, the trapezoidal block two is in contact with the trapezoidal block one, and a slope two which is higher on the left and lower on the right is arranged on the left side of the trapezoidal block two, and the slope one is in contact with the slope two.

[0010] Preferably, a sludge dredging system capable of realizing automatic start and stop and taking into account water-saving functions, further comprises: a remote monitoring module, and the remote monitoring module is communicatively connected with the controller.

[0011] Preferably, a sludge discharge and conveying system that can realize automatic start and stop and take into account water-saving function, wherein the filter press adopts a belt filter press, further comprising:

[0012] Flow sensor, used to detect the filtering sludge speed of belt filter press;

[0013] The first pressure sensor is used to detect the pressure of the sludge on the filter medium at the front end of the filter in the belt filter press;

[0014] The second pressure sensor is used to detect the pressure of the sludge on the filter medium at the rear end of the filtration in the belt filter press;

[0015] A controller and an alarm, wherein the controller is electrically connected to the flow sensor, the first pressure sensor, the second pressure sensor and the alarm.

[0016] Preferably, the controller controls the alarm to work based on the flow sensor, the first pressure sensor, and the second pressure sensor, comprising the following steps:

[0017] Step 1: According to formula (1) and the flow sensor detection value, calculate the filtration utilization coefficient C of the belt filter press:

[0018]

[0019] Where λ is the reliability coefficient of the filtration speed of the belt filter press, V is the volume of the filtrate after filtration per unit volume of the belt filter press, v is the detection value of the flow sensor, s is the working time of the belt filter press, Q w Q is the amount of sludge that needs to be treated in the belt filter press, y is the amount of filtered liquid after treatment by the belt filter press, ρ g is the concentration of solid matter in the filter cake after being treated by the belt filter press;

[0020] Step 2: According to the following formula (2) and the detection values ​​of the first pressure sensor and the second pressure sensor, the actual fluid volume K of the sludge treated per unit time is calculated. The controller compares the actual fluid volume K of the sludge treated per unit time with the preset fluid volume range. When the actual fluid volume is lower than the preset fluid volume range, the controller controls the alarm to sound an alarm:

[0021]

[0022] Where P1 is the detection value of the first pressure sensor, P2 is the detection value of the second pressure sensor, A is the filtration area of ​​the filter medium in the belt filter press, μ is the dynamic viscosity of the filtrate after the belt filter press treatment, δ is the dry solid weight of the filtrate retained on the filter medium per unit volume of filtrate, is the resistance of the filter cake in the belt filter press, is the impedance of the filter medium in the belt filter press. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the installation of a mud discharge and conveying system provided in an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of the internal structure of a sewage treatment tank provided by an embodiment of the present invention;

[0026] Figure 3 The embodiment of the present invention provides Figure 2 Schematic diagram of the enlarged structure at point A.

[0027] Reference numerals:

[0028] 1. Sewage treatment tank; 2. Water inlet pipe; 3. Connecting pipe 1; 4. Filter press; 5. Submersible sewage pump; 6. Drain pipe; 7. Filter cake output end; 8. Solenoid valve 1; 9. Connecting pipe 2; 10. Water pump 1; 11. Liquid storage chamber; 12. Sewage treatment chamber; 13. Liquid level gauge; 14. Filter plate; 15. Through hole; 16. Solenoid valve 2; 17. Drive chamber; 18. Drive motor; 19. Rotating shaft 1; 20. Stirring rod; 21. Conical gear Wheel 1; 22, rotating shaft 2; 23, processing chamber; 24, cam; 25, short rod 1; 26, trapezoidal block 1; 27, sliding rod 1; 28, slide trough 1; 29, reset spring 1; 30, bevel gear 2; 31, moving rod; 32, slider 1; 33, slide trough 2; 34, nozzle; 35, connecting pipe 3; 36, water pump 2; 37, sliding rod 2; 38, L-shaped rod; 39, slide trough 3; 40, reset spring 2; 41, trapezoidal block 2. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0031] The present invention provides the following embodiments

[0032] Example 1

[0033] The embodiment of the present invention provides a mud drainage system that can realize automatic start and stop and take into account water saving functions, such as Figure 1 As shown, it includes: a sewage treatment tank 1, the input end of the sewage treatment tank 1 is connected to the sewage discharge end through a water inlet pipe 2, the output end of the sewage treatment tank 1 is connected to the filter press 4 through a connecting pipe 3 through a submersible sewage pump 5, and the other end of the filter press 4 is respectively connected to a drain pipe 6 and a filter cake output end 7, and an electromagnetic valve 8 is fixedly installed on the drain pipe 6, the drain pipe 6 is connected to the input end of a water pump 10 through a connecting pipe 2 9, the output end of the water pump 10 is communicated with the sewage treatment tank 1, and a sludge discharge and conveying device is arranged in the sewage treatment tank 1, and the water pump 10, the electromagnetic valve 8, the submersible sewage pump 5, and the filter press 4 are respectively electrically connected to the controller.

[0034] The beneficial effects of the above technical scheme are as follows: the present invention arranges a mud discharge and conveying device in the sewage treatment tank 1, and processes the muddy water by driving the mud discharge and conveying device, and then starts the submersible sewage pump 5, and the submersible sewage pump 5 transports the muddy water to the filter press 4 through the connecting pipe 3 for mud-water separation, and then the filtered water is discharged through the drain pipe 6, and at the same time, by starting the water pump 10, a part of the water is transported to the sewage treatment tank 1, and the mud cake processed by the filter press 4 is discharged through the filter cake output terminal 7, thereby effectively improving the problem proposed by the background technology: in the existing sewage treatment, muddy water is easy to remain on the working box, the bottom is not cleanly discharged, and it is easy to agglomerate, which is also inconvenient to clean up, and when discharging muddy water, a large amount of water needs to be discharged to bring out the muddy water. This method easily causes the problem of sludge accumulation.

[0035] Example 2

[0036] On the basis of Example 1, Figure 2-3As shown, a sludge dredging system that can realize automatic start and stop and take into account water-saving functions, the sludge dredging device includes: a liquid storage chamber 11, the liquid storage chamber 11 is arranged at the top of a sewage treatment tank 1, and the top of the liquid storage chamber 11 is communicated with a connecting pipe 2 9, and a sewage treatment chamber 12 is arranged at the bottom left end of the liquid storage chamber 11, the left end of the sewage treatment chamber 12 is connected to a water inlet pipe 2, and a liquid level gauge 13 is fixedly installed on the left inner wall of the sewage treatment chamber 12, a filter plate 14 is fixedly installed on the inner wall of the sewage treatment chamber 12 around the filter plate 14, and a through hole 15 is arranged on the sewage treatment tank 1 at the left end of the filter plate 14, an electromagnetic valve 2 16 is arranged in the through hole 15, and a driving chamber 17 is arranged at the right end of the sewage treatment chamber 12, and a sludge dredging mechanism is arranged in the driving chamber 17.

[0037] Optionally, the sludge dredging mechanism includes: a driving motor 18, the driving motor 18 is fixedly mounted at the bottom end of the driving chamber 17, and the output end of the driving motor 18 is fixedly mounted with one end of a rotating shaft 19, the other end of the rotating shaft 19 is rotatably connected to the inner wall of the sewage treatment chamber 12, and a plurality of stirring rods 20 are fixedly mounted on the rotating shaft 19, and the right bottom end of the sewage treatment chamber 12 is connected to the connecting pipe 3.

[0038] Optionally, a sludge cleaning mechanism is also provided in the sewage treatment box 1, and the sludge cleaning mechanism includes: a bevel gear 21, the top end of the bevel gear 21 is fixedly connected to the cam 24 in the processing chamber 23 through a rotating shaft 22, the bevel gear 21 is meshed and connected with a bevel gear 2 30, and the bevel gear 2 30 is fixedly installed on the rotating shaft 19, and a trapezoidal block 26 is fixedly installed on the top right side of the short rod 25, and a slope 1 which is higher on the left and lower on the right is provided on the right side of the trapezoidal block 26, the bottom end of the short rod 25 is slidably connected to a slide rod 27, and the slide rod 27 is fixedly installed on the inner wall of a slide groove 28 provided on the L-shaped rod 38, the left and right ends of the reset spring 29 are fixed on the slide rod 27 and the inner wall of the slide groove 28, and the top of the trapezoidal block 26 is connected to the sludge cleaning component.

[0039] Optionally, the sludge cleaning assembly includes: a moving rod 31, the left end of which passes through the processing chamber 23 and is fixedly connected to a slider 1 32, and the slider 1 32 is slidably connected in a slide groove 2 33 up and down, and a plurality of nozzles 34 are provided at the left end of the slider 1 32, and the nozzle 34 is connected to a water pump 2 36 fixedly installed in the liquid storage chamber 11 through a connecting pipe 35, the right end of the moving rod 31 is slidably connected to a slide rod 2 37 up and down, and the upper and lower ends of the slide rod 2 37 are fixedly installed on the inner wall of a slide groove 3 39 provided on the L-shaped rod 38, the upper and lower ends of the return spring 2 40 are respectively fixedly installed on the moving rod 31 and the inner wall of the slide groove 3 39, the trapezoidal block 2 41 is fixedly installed at the bottom end of the moving rod 31, the trapezoidal block 2 41 is in contact with the trapezoidal block 1 26, and a slope 2 with a left high and a right low is provided on the left side of the trapezoidal block 2 41, and the slope 1 is in contact with the slope 2.

[0040] Optionally, the sludge drainage system that can realize automatic start and stop and take into account the water-saving function also includes: a remote monitoring module, which is communicatively connected to the controller, and can view the system's operating status information in real time through a wireless network and a wired network, and perform remote control and adjustment.

[0041] The working principle of the above technical solution is as follows: when it is necessary to process the muddy water passing through the water inlet pipe 2, the impurities in the muddy water are effectively filtered through the filter plate 14, and then when the liquid level meter 13 detects that the amount of muddy water in the sewage treatment chamber 12 reaches a certain height, the submersible sewage pump 5 is started, and the submersible sewage pump 5 transports the muddy water in the sewage treatment chamber 12 through the connecting pipe 3 to the filter press 4 for treatment. After a long period of muddy water treatment, mud blocks will stick to the inner wall of the sewage treatment chamber 12, and impurities will accumulate on the surface of the filter plate 14. By opening the electromagnetic valve 16, the impurities on the filter plate 14 are discharged through the through hole 15, and then the drive motor 18 is started. The rotation of the drive motor 18 drives the rotating shaft 19 and a plurality of stirring rods 20 fixedly installed on the rotating shaft 19 to rotate, and the rotation of the rotating shaft 19 drives the bevel gear 2 30 fixedly installed thereon to rotate. The rotation of bevel gear 2 30 drives the bevel gear 1 21 meshing with it to rotate accordingly, the rotation of bevel gear 1 21 drives the rotating shaft 22 to rotate accordingly, the rotation of rotating shaft 22 drives the cam 24 fixedly connected to it to rotate accordingly, the rotation of cam 24 drives the short rod 1 25 and the trapezoidal block 1 26 fixedly installed on the short rod 1 25 to move rightward, the trapezoidal block 1 26 moves rightward and drives the trapezoidal block 2 41 to move up and down accordingly, the trapezoidal block 2 41 moves up and down and drives the moving rod 31 to move accordingly, the movement of the moving rod 31 drives the slider 1 32 to move up and down in the slide groove 2 33, and at the same time, the water pump 2 36 is started to pass the water in the liquid storage chamber 11 through the connecting pipe 3 35, and then spray it out through a plurality of nozzles 34, the nozzles 34 effectively clean the sludge on the inner wall of the sewage treatment chamber 12, and finally the cleaned muddy water is transported again through the connecting pipe 1 3.

[0042] The beneficial effects of the above technical solution are as follows: by setting the liquid storage chamber 11, it is conducive to the effective utilization of filtered water, thereby reducing the utilization of water; by setting the rotating shaft 19 and the stirring rod 20, it is conducive to effectively dredging the muddy water when it cannot pass through the connecting pipe 3, and at the same time, the cleaning effect can be improved during the cleaning process; by setting the filter plate 14, it is conducive to effectively separating the impurities in the muddy water; by setting the through hole 15 and the electromagnetic valve 16, it is conducive to discharging the impurities; by setting the liquid level meter 13, it is conducive to detecting the amount of muddy water transported to the sewage treatment chamber 12; by setting the water pump 36, it is conducive to effectively transporting the water in the liquid storage chamber 11; by setting the trapezoidal block 26 and the trapezoidal block 41, it is conducive to realizing the up and down movement of the slider 32, thereby cleaning the inner wall of the sewage treatment chamber 12 at different positions; by setting the reset spring 29 and the reset spring 40, it is conducive to resetting the short rod 25 and the moving rod 31, which is very convenient and practical.

[0043] Example 3

[0044] On the basis of Embodiment 1 or 2, a sludge discharge and conveying system that can realize automatic start and stop and take into account the water-saving function, wherein the filter press 4 adopts a belt filter press (a commonly used solid-liquid separation equipment that squeezes out the water in the sludge by pressure, thereby separating the sludge into filtrate and filter cake to achieve the purpose of solid-liquid separation), and further includes:

[0045] Flow sensor, used to detect the filtering sludge speed of belt filter press;

[0046] The first pressure sensor is used to detect the pressure of the sludge on the filter medium at the front end of the filter in the belt filter press;

[0047] The second pressure sensor is used to detect the pressure of the sludge on the filter medium at the rear end of the filtration in the belt filter press;

[0048] A controller and an alarm, wherein the controller is electrically connected to the flow sensor, the first pressure sensor, the second pressure sensor and the alarm.

[0049] Optionally, the controller controls the alarm to work based on the flow sensor, the first pressure sensor, and the second pressure sensor, comprising the following steps:

[0050] Step 1: According to formula (1) and the flow sensor detection value, calculate the filtration utilization coefficient C of the belt filter press:

[0051]

[0052] Where λ is the reliability coefficient of the filtration speed of the belt filter press (the range of values ​​is 1.0-1.5), V is the volume of filtrate after filtration per unit volume of the belt filter press, v is the detection value of the flow sensor, s is the working time of the belt filter press, Q w Q is the amount of sludge that needs to be treated in the belt filter press, y is the amount of filtered liquid after treatment by the belt filter press, ρ g is the concentration of solid matter in the filter cake after being treated by the belt filter press;

[0053] Step 2: According to the following formula (2) and the detection values ​​of the first pressure sensor and the second pressure sensor, the actual fluid volume K of the sludge treated per unit time is calculated. The controller compares the actual fluid volume K of the sludge treated per unit time with the preset fluid volume range. When the actual fluid volume is lower than the preset fluid volume range, the controller controls the alarm to sound an alarm:

[0054]

[0055] Where P1 is the detection value of the first pressure sensor, P2 is the detection value of the second pressure sensor, A is the filtration area of ​​the filter medium in the belt filter press (the filter medium can be a mud filter plate), μ is the dynamic viscosity of the filtrate after the belt filter press treatment, δ is the dry solid weight of the filtrate retained on the filter medium per unit volume of the filtrate, is the resistance of the filter cake in the belt filter press, It is the impedance of the filter medium in the belt filter press (a physical quantity that describes the degree of obstruction encountered when sludge passes through the filter medium).

[0056] The beneficial effects of the above technical solution are as follows: the controller calculates the filtration utilization coefficient of the belt filter press based on the flow sensor detection value of the formula (1), and comprehensively considers the filtration speed reliability coefficient of the belt filter press, the volume of filtrate after filtration per unit volume of the belt filter press, the working time of the belt filter press, the amount of sludge entering the belt filter press that needs to be treated, the amount of filtered liquid after treatment by the belt filter press, and the concentration of solid matter in the filter cake after treatment by the belt filter press, so that the calculation result is more accurate and reliable;

[0057] Then, according to the formula (2) and the detection values ​​of the first pressure sensor and the second pressure sensor, the filtration area, the dynamic viscosity of the filtrate after the belt filter press treatment, the dry solid weight of the filtrate per unit volume filtered on the filter medium, the resistance of the filter cake in the belt filter press, and the impedance of the filter medium in the belt filter press, the actual fluid volume of the sludge treated per unit time is calculated, so that the calculation result is more accurate and reliable;

[0058] The controller compares the actual fluid volume of the sludge processed per unit time with the preset fluid volume range. When the actual fluid volume is lower than the preset fluid volume range, the controller controls the alarm to sound, thereby reminding the staff to promptly inspect or replace the belt filter press, thereby meeting the user's demand for a sludge discharge and transportation system that can achieve automatic start and stop and take into account water-saving functions.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sludge discharge and conveying system that can realize automatic start and stop and take into account water-saving functions, characterized in that: include: A sewage treatment tank (1), wherein the input end of the sewage treatment tank (1) is connected to the sewage discharge end through a water inlet pipe (2), the output end of the sewage treatment tank (1) is connected to a filter press (4) through a connecting pipe (3) through a submersible sewage pump (5), and the other end of the filter press (4) is respectively connected to a drainage pipe (6) and a filter cake output end (7), and an electromagnetic valve (8) is fixedly installed on the drainage pipe (6), the drainage pipe (6) is connected to the input end of a water pump (10) through a connecting pipe (9), the output end of the water pump (10) is communicated with the sewage treatment tank (1), and a sludge discharge and conveying device is arranged in the sewage treatment tank (1), and the water pump (10), the electromagnetic valve (8), the submersible sewage pump (5), and the filter press (4) are respectively electrically connected to a controller.

2. According to claim 1, a sludge discharge and conveying system capable of realizing automatic start and stop and taking into account water-saving function is characterized in that: The sludge discharge and conveying device comprises: a liquid storage chamber (11), the liquid storage chamber (11) being arranged at the top end of a sewage treatment tank (1), and the top end of the liquid storage chamber (11) being communicated with a second connecting pipe (9), and a sewage treatment chamber (12) being arranged at the bottom end on the left side of the liquid storage chamber (11), the left end of the sewage treatment chamber (12) being connected with a water inlet pipe (2), and a liquid level gauge (13) being fixedly mounted on the inner wall of the left side of the sewage treatment chamber (12), a filter plate (14) being fixedly mounted on the inner wall of the sewage treatment chamber (12), and a through hole (15) being arranged on the sewage treatment tank (1) at the left end of the filter plate (14), and a second electromagnetic valve (16) being arranged in the through hole (15), and a driving chamber (17) being arranged at the right end of the sewage treatment chamber (12), and a sludge dredging mechanism being arranged in the driving chamber (17).

3. The sludge discharge and conveying system according to claim 2, which can realize automatic start and stop and take into account the water-saving function, is characterized in that The sludge dredging mechanism comprises: a driving motor (18), the driving motor (18) is fixedly mounted at the bottom end of the driving chamber (17), and the output end of the driving motor (18) is fixedly mounted with one end of a rotating shaft (19), the other end of the rotating shaft (19) is rotatably connected to the inner wall of the sewage treatment chamber (12), and a plurality of stirring rods (20) are fixedly mounted on the rotating shaft (19), and the right bottom end of the sewage treatment chamber (12) is connected to a connecting pipe (3).

4. According to claim 3, a sludge discharge and conveying system capable of realizing automatic start and stop and taking into account water-saving function is characterized in that: The sewage treatment box (1) is also provided with a sludge cleaning mechanism, which comprises: a bevel gear (21), the top end of which is fixedly connected to a cam (24) in a treatment chamber (23) via a rotating shaft (22), the bevel gear (21) is meshingly connected to a bevel gear (30), the bevel gear (30) is fixedly mounted on a rotating shaft (19), a trapezoidal block (26) is fixedly mounted on the top right end of a short rod (25), a slope (1) which is higher on the left and lower on the right is provided on the right side of the trapezoidal block (26), the bottom end of the short rod (25) is slidably connected to a slide rod (27) on the left and right, and the slide rod (27) is fixedly mounted on the inner wall of a slide groove (28) provided on an L-shaped rod (38), the left and right ends of a return spring (29) are fixed to the slide rod (27) and the inner wall of the slide groove (28), and the top end of the trapezoidal block (26) is connected to the sludge cleaning assembly.

5. The sludge discharge and conveying system capable of realizing automatic start and stop and taking into account water-saving function according to claim 4 is characterized in that: The sludge cleaning assembly comprises: a moving rod (31), the left end of the moving rod (31) passes through the processing chamber (23) and is fixedly connected to a slider (32), and the slider (32) is connected to a slide groove (33) by sliding up and down, and a plurality of nozzles (34) are arranged at the left end of the slider (32), and the nozzles (34) are connected to a water pump (36) fixedly installed in the liquid storage chamber (11) through a connecting pipe (35), and the right end of the moving rod (31) is connected to the slider by sliding up and down. The upper and lower ends of the sliding rod (37) are fixedly mounted on the inner wall of the sliding groove (39) provided on the L-shaped rod (38); the upper and lower ends of the return spring (40) are respectively fixedly mounted on the moving rod (31) and the inner wall of the sliding groove (39); the trapezoidal block (41) is fixedly mounted on the bottom end of the moving rod (31); the trapezoidal block (41) is in contact with the trapezoidal block (26); and a slope (2) with a higher left side and a lower right side is provided on the left side of the trapezoidal block (41); the slope (1) is in contact with the slope (2).

6. The sludge discharge and conveying system according to claim 1, which can realize automatic start and stop and take into account the water-saving function, is characterized in that , also includes: a remote monitoring module, which is communicatively connected to the controller.

7. The sludge discharge and conveying system capable of realizing automatic start and stop and taking into account water-saving function according to claim 1 is characterized in that: The filter press (4) is a belt filter press, and further comprises: Flow sensor, used to detect the filtering sludge speed of belt filter press; The first pressure sensor is used to detect the pressure of the sludge on the filter medium at the front end of the filter in the belt filter press; The second pressure sensor is used to detect the pressure of the sludge on the filter medium at the rear end of the filtration in the belt filter press; A controller and an alarm, wherein the controller is electrically connected to the flow sensor, the first pressure sensor, the second pressure sensor and the alarm.

8. The sludge discharge and conveying system capable of realizing automatic start and stop and taking into account water-saving function according to claim 7 is characterized in that: The controller controls the alarm to work based on the flow sensor, the first pressure sensor, and the second pressure sensor, including the following steps: Step 1: According to formula (1) and the flow sensor detection value, calculate the filtration utilization coefficient C of the belt filter press: Where λ is the reliability coefficient of the filtration speed of the belt filter press, V is the volume of the filtrate after filtration per unit volume of the belt filter press, v is the detection value of the flow sensor, s is the working time of the belt filter press, Q w Q is the amount of sludge that needs to be treated in the belt filter press, y is the amount of filtered liquid after treatment by the belt filter press, ρ g is the concentration of solid matter in the filter cake after being treated by the belt filter press; Step 2: According to the following formula (2) and the detection values ​​of the first pressure sensor and the second pressure sensor, the actual fluid volume K of the sludge treated per unit time is calculated. The controller compares the actual fluid volume K of the sludge treated per unit time with the preset fluid volume range. When the actual fluid volume is lower than the preset fluid volume range, the controller controls the alarm to sound an alarm: Where P1 is the detection value of the first pressure sensor, P2 is the detection value of the second pressure sensor, A is the filtration area of ​​the filter medium in the belt filter press, μ is the dynamic viscosity of the filtrate after the belt filter press treatment, δ is the dry solid weight of the filtrate retained on the filter medium per unit volume of filtrate, is the resistance of the filter cake in the belt filter press, is the impedance of the filter medium in the belt filter press.

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