Sludge uniform discharge system

Abstract

The present application provides a kind of sludge uniform discharging system, including sludge pushing device and distributing device, the sludge pushing device includes shell, one end of the shell is equipped with motor that can be reversed, the shell is equipped with driving shaft coaxially connected with motor, multiple blades are staggered and spaced distribution on the driving shaft, stirring mechanism is equipped on the blade, and the distributing device includes multiple groups of discharger that are obliquely arranged outside the shell.This sludge uniform discharging system has multiple discharging points, and can flexibly control sludge to be uniformly discharged from any outlet, and the equipped stirring, advancing and flushing system can avoid the blockage of discharging system to the greatest extent, to ensure the stable operation of the whole sludge treatment system.

Description

TECHNICAL FIELD

[0001] The present application relates to a sludge discharging device, in particular to a sludge uniform discharging system. BACKGROUND

[0002] In the process of urbanization, with the rapid improvement of sewage treatment capacity in China, the output of sludge also increases significantly. The composition of sludge is very complex, which is a collection of microbial aggregates formed by various microorganisms and the adsorbed organic and inorganic matters. In addition to a large amount of water, it also contains difficult-to-degrade organic matter, heavy metals and salts, and a small amount of pathogenic microorganisms.

[0003] A key problem to be solved in the operation process of sludge treatment and disposal project is the effective connection between sludge treatment section and sludge disposal section. The uniform discharging of sludge at multiple points has always been a difficult problem restricting the end disposal section. The existing sludge conveying devices are mainly spiral conveyors and scraper conveyors. These sludge conveying devices are mostly single-point discharging. If designed as multi-point discharging, it is difficult to achieve uniform discharging, especially in the sludge sticky area, and the multi-point discharging becomes more difficult, and there is also the risk of blockage.

[0004] Therefore, it is necessary to design a new sludge uniform discharging system to overcome the above problems. SUMMARY

[0005] The present application aims to overcome the defects of the prior art and provides a sludge uniform discharging system which can uniformly discharge at multiple points and has high stability, good flexibility and high automation.

[0006] The present application is implemented as follows:

[0007] The present application provides a sludge uniform discharging system, which comprises a sludge pushing device and a distributing device. The sludge pushing device comprises a shell, one end of the shell is provided with a motor which can rotate forward and backward, the shell is provided with a driving shaft which is coaxially connected with the motor, a plurality of blades are distributed on the driving shaft in a staggered and spaced manner, and a stirring mechanism is arranged on each blade. The distributing device comprises a plurality of dischargers which are arranged on the outer side of the shell in an inclined manner.

[0008] The shell provides a carrier for sludge conveying. With the rotation of the driving shaft, the sludge is pushed forward and uniformly distributed in the dischargers arranged in an inclined manner under the action of the blades and the stirring mechanism, so as to be smoothly discharged. The motor can rotate forward and backward according to the distribution of the sludge in the shell, so as to push the sludge in the shell to the left or the right, thereby avoiding the accumulation of sludge at a certain position.

[0009] Further, a sludge inlet is formed at one end of the shell away from the motor, and the inclination angles of each group of dischargers and the shell are the same.

[0010] Further, the shell is provided with a flushing water inlet near one end of the motor and a vent at the other end.

[0011] Further, the flushing water inlet is connected with a high-pressure water pipeline, and the high-pressure water pipeline is connected with a high-pressure flushing device.

[0012] Further, the blade and the driving shaft are in an inclined cross section.

[0013] Further, the stirring mechanism is a feather, and the feather is at an angle with the blade.

[0014] Further, the dischargers are all provided with pneumatic valves.

[0015] Further, the shell is further provided with a control module and a pressure sensor, and the control module is electrically connected with the motor, the pneumatic valves and the pressure sensor.

[0016] The present application has the following advantages:

[0017] 1. The sludge is dispersed in the dischargers arranged in an inclined manner under the stirring and pushing of the blade and the stirring mechanism, so that multi-point and multi-section discharging is facilitated, and the motor can be reversely rotated or forwardly rotated according to the sludge accumulation in the shell to uniformly disperse the sludge in each discharger.

[0018] 2. The blade is arranged in an inclined and staggered manner on the driving shaft, and the feather is also arranged in an inclined manner at an angle with the blade, so that the stirring and pushing effect at the inner side wall of the shell is further ensured.

[0019] 3. The shell is provided with a high-pressure flushing device, so that when the pressure in the shell is high and the sludge is blocked, the high-pressure flushing device can be opened to timely dredge the blocked sludge in the shell and ensure stable operation of the system.

[0020] 4. The control module and the pressure sensor arranged on the shell and the pneumatic valves arranged on the dischargers can intelligently control the discharging of the sludge in real time, so that the uniformity of the sludge discharging of the device is ensured. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without any creative effort.

[0022] Figure 1 The structure diagram of the sludge uniform discharging system provided by the embodiments of the present application.

[0023] In the figure: 1 - sludge feeding port; 2 - vent; 3 - shell; 4 - feather; 5 - blade; 6 - drive shaft; 7 - discharger; 8 - pneumatic valve; 9 - motor; 10 - flushing water inlet; 11 - high-pressure flushing device. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0025] Reference Figure 1 The embodiment of the present application provides a sludge uniform discharging system, which comprises a sludge pushing device and a distributing device. The sludge pushing device comprises a shell 3, one end of the shell 3 is provided with a motor 9 capable of rotating forward and backward, the shell is provided with a drive shaft 6 coaxially connected with the motor 9, a plurality of blades 5 are distributed on the drive shaft 6 in an interlaced and spaced manner, and each blade 5 is provided with a stirring mechanism. The distributing device comprises a plurality of groups of dischargers 7 which are arranged obliquely outside the shell 3.

[0026] The shell 3 provides a carrier for sludge conveying. With the rotation of the drive shaft 6, the sludge is pushed forward and uniformly distributed in the obliquely arranged dischargers 7 under the action of the blades 5 and the stirring mechanisms, so as to be smoothly discharged. The motor 9 can rotate forward and backward according to the distribution of the sludge in the shell 3, so as to push the sludge in the shell 3 to the left or to the right, thereby avoiding the accumulation of sludge at a certain position.

[0027] A sludge feeding port 1 is formed at one end of the shell 3 away from the motor 9. The inclination angles of each group of dischargers 7 and the shell 3 are the same, so as to ensure that the discharging efficiencies of each group of dischargers 7 are the same, and each discharger 7 uniformly discharges.

[0028] A flushing water inlet 10 is formed at one end of the shell 3 close to the motor 9, and a vent 2 is arranged at the other end. The flushing water inlet 10 is connected with a high-pressure water pipeline, and the high-pressure water pipeline is connected with a high-pressure flushing device 11. When the sludge in the shell 3 is blocked, water discharged from the high-pressure flushing device 11 enters the shell 3 through the flushing water inlet 10, and the sludge is discharged from the vent 2 after being flushed by high pressure.

[0029] The cross section of the blade 5 and the drive shaft 6 is obliquely arranged. In this embodiment, the stirring mechanism is a feather 4, and the feather 4 is arranged at a certain angle with the blade 5. In this way, the sludge at the side wall of the shell 3 can also be stirred, and the sludge can be more dispersed during the pushing process, thereby avoiding blockage.

[0030] The discharge device 7 is provided with a pneumatic valve 8. The shell 3 is also provided with a control module and a pressure sensor, and the control module, the motor 9, the pneumatic valve 8 and the pressure sensor are electrically connected.

[0031] In actual operation, the sludge enters the shell 3 through the sludge feeding port 1. The blade 5 is installed at a certain angle with the cross section of the driving shaft 6. By changing the rotation direction, the sludge can be pushed to the left or the right. The feather 4 is installed on the blade 5 and is also at a certain angle with the blade 5, which further ensures the stirring and pushing effect at the side wall and avoids the sludge from being concentrated and accumulated at the side wall. After stirring and pushing, the sludge enters the inlet of the discharge device 7. According to the discharge requirement, the corresponding pneumatic valve 8 is automatically opened by the control module, so that the sludge is smoothly discharged from the required outlet. The pressure sensor at the inlet of the sludge uniform discharge system feeds back the pressure value signal to the control module in real time. When the pressure value exceeds the maximum pressure value set by the system, the high-pressure flushing device 11 is automatically opened to timely dredge the clogged sludge in the shell 3 and ensure the stable operation of the system.

[0032] Compared with the prior art, the sludge uniform discharge system has the following advantages:

[0033] (1) Uniformity: According to the discharge requirement, a corresponding number of discharge devices 7 can be installed, and uniform discharge of each discharge device 7 can be ensured;

[0034] (2) Controllability: The opening sequence and opening time of the discharge device 7 can be controlled through the control module and the pneumatic valve 8;

[0035] (3) Stability: The sludge stirring and pushing integrated device can realize continuous stirring of the sludge in the sludge discharge system. The forward rotation and reverse rotation function can avoid the accumulation of dead sludge. The pressure sensor at the inlet can feed back the pressure signal to the control module in real time, and the high-pressure flushing device 11 is automatically opened;

[0036] (4) Applicability: It is suitable for various sludge with water content after preliminary dewatering, especially for sludge conveying and distribution in the viscous region.

[0037] The sludge uniform discharge system has multiple discharge points, and the sludge can be uniformly discharged from any outlet flexibly. The stirring, pushing and flushing system can maximize the prevention of blockage of the discharge system and ensure the stable operation of the entire sludge treatment system.

[0038] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A sludge uniform discharge system, characterized in that, The device includes a sludge pushing device and a distributing device. The sludge pushing device includes a housing (3). A motor (9) that can rotate in both directions is installed at one end of the housing (3). A drive shaft (6) coaxially connected to the motor (9) is provided inside the housing. Multiple blades (5) are distributed alternately on the drive shaft (6). Each blade (5) is equipped with a stirring mechanism. The distributing device includes multiple sets of discharge devices (7) that are inclined and arranged outside the housing (3). The housing (3) provides a carrier for sludge transportation. As the drive shaft (6) rotates, the sludge is pushed forward and evenly distributed in the inclined discharge devices (7) under the action of the blades (5) and the stirring mechanism so as to be discharged smoothly. The motor (9) rotates in both directions according to the distribution of sludge in the housing (3) to push the sludge in the housing (3) to the left or right to avoid sludge accumulation in a certain position. A flushing water inlet (10) is opened at one end of the housing (3) near the motor (9), and a drain is provided at the other end. The vent (2) is connected to a high-pressure water pipe, which is connected to a high-pressure flushing device (11). When sludge becomes clogged in the shell (3), the water from the high-pressure flushing device (11) enters the shell (3) through the flushing water inlet (10), and the sludge is discharged from the vent (2) after being flushed by high pressure. The discharge device (7) is equipped with pneumatic valves (8). The shell (3) is also equipped with a control module and a pressure sensor. The control module, motor (9), pneumatic valves (8), and pressure sensor are electrically connected. According to the discharge requirements, the control module automatically opens the corresponding pneumatic valves (8) so that the sludge can be discharged smoothly from the required outlet. The pressure sensor at the inlet of the sludge uniform discharge system feeds back the pressure value signal to the control module in real time. When the pressure exceeds the maximum pressure value set by the system, the high-pressure flushing device (11) is automatically opened to clear the sludge clog in the shell (3) in time and ensure the stable operation of the system. A sludge inlet (1) is provided at the end of the housing (3) away from the motor (9). The tilt angle between each set of dischargers (7) and the housing (3) is the same, ensuring that the discharge efficiency of each set of dischargers (7) is the same and that each discharger (7) discharges material evenly. As the sludge is pushed to the left, in the two adjacent blades (5) that are staggered, one of the blades (5) rotates and the circumference formed is set close to the left side of the discharge device (7), and the other blade (5) rotates and the circumference formed is set close to the right side of the discharge device (7). The discharge device (7) is tilted away from the sludge inlet (1). The stirring mechanism is a feather root (4), and the feather root (4) and the blade (5) are at a certain angle, so that the sludge on the side wall inside the shell (3) can also be stirred, and the sludge is more dispersed during the pushing process to avoid clogging.

2. The sludge uniform discharge system as described in claim 1, characterized in that: The blade (5) and the drive shaft (6) have inclined cross sections.

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