Multi-source desilting sludge treatment system

Abstract

The utility model discloses a multi-source desilting sludge treatment system. The multi-source desilting sludge treatment system comprises a feeding device, a crushing device, a roller cleaning machine, a screen and a recycling device. The feeding device is used for conveying desilting sludge with first water content; the crushing device is used for receiving the desilting sludge with the second water content and crushing the desilting sludge with the second water content into sand grains not larger than the first preset diameter size and stone grains larger than the first preset diameter size, and the first water content is larger than the second water content; the feeding device and the crushing device are both connected with the feeding end of the roller cleaning machine, the screen is arranged at the discharging end of the roller cleaning machine, the roller cleaning machine is used for cleaning sand grains and stone grains, and the screen is used for screening desilted sludge and sand grains in the stone grains. And stones in the dredging sludge with the second water content are crushed into stone grains and sand grains through the crushing device, and the sand grains are screened from the stone grains through the screen. The multi-source desilting sludge treatment system can recover and process the desilting sludge with the second water content.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of dredging sludge treatment, in particular to a multi-source dredging sludge treatment system. BACKGROUND

[0002] With the continuous development of urban construction, in order to ensure the normal operation of water facilities such as rivers, lakes, reservoirs, sewage pipe network, rainwater pipe network, pump station, storage tank and other water facilities, it is inevitable to carry out regular or emergency dredging, which will produce a large amount of solid waste. Among them, only the dredging sludge produced in the process of sewer cleaning, river and offshore channel dredging is defined as ditching sludge and river and lake sediment. The traditional treatment method for ditching sludge often uses simple screening and washing to obtain sand particles of different particle sizes by controlling the washing time, water quantity and screen aperture, and the light organic matter and large inorganic matter in the dredging sludge are directly transported and disposed without separation, and the disposal path is mainly incineration and landfill. For the dredging sludge in the process of river and offshore channel dredging, a concentration tank is usually built on the shore or a mobile dewatering device is used for dewatering and solidification treatment before being transported and disposed, and the disposal method is mainly sea dumping or soil disposal.

[0003] In related technologies, the multi-source dredging sludge treatment system is used to recover and process sand particles in the dredging sludge, and the multi-source dredging sludge treatment system is provided with a drum washing machine and a screen, which are used to separate sand particles in the dredging sludge. The dredging sludge with low water content contains stones with large diameter size, and the drum washing machine and the screen are difficult to separate the stones in the dredging sludge, so that the multi-source dredging sludge treatment system cannot recover and process the dredging sludge with low water content, thereby reducing the use experience of the multi-source dredging sludge treatment system. CONTENT OF THE UTILITY MODEL

[0004] In order to enable the multi-source dredging sludge treatment system to recover and process the dredging sludge with low water content and improve the use experience of the multi-source dredging sludge treatment system, the present application provides a multi-source dredging sludge treatment system.

[0005] The multi-source dredging sludge treatment system provided by the present application adopts the following technical scheme:

[0006] The multi-source dredging sludge treatment system comprises: a feeding device for conveying dredging sludge with a first water content; a crushing device for receiving dredging sludge with a second water content and crushing the dredging sludge with the second water content into sand particles with a size not greater than a first preset diameter and stone particles with a size greater than the first preset diameter, wherein the first water content is greater than the second water content; a drum washing machine and a screen, the feeding device and the crushing device are connected to a feeding end of the drum washing machine, and the screen is arranged at a discharging end of the drum washing machine, the drum washing machine is used for washing the sand particles and the stone particles, and the screen is used for screening the sand particles in the dredging sludge and screening the sand particles in the stone particles, and the screened stone particles are suitable for being conveyed to the crushing device; and a resource utilization device for receiving and processing the sand particles.

[0007] By adopting the above technical scheme, the stone in the dredging sludge with the second water content is crushed into the sand particles and the stone particles by the crushing device, and the sand particles are screened from the stone particles by the screen. Compared with the prior art, the multi-source dredging sludge treatment system can recycle and process the dredging sludge with the second water content, thereby improving the use experience of the multi-source dredging sludge treatment system.

[0008] Preferably, the crushing device comprises a jaw crusher, a hammer crusher, a magnetic member and a fan, the jaw crusher is connected to a feeding end of the hammer crusher, a discharging end of the hammer crusher is connected to the feeding end of the drum washing machine, the jaw crusher is used for receiving the dredging sludge with the second water content and crushing the dredging sludge with the second water content into stone particles with a size not greater than a second preset diameter, the hammer crusher is used for crushing the stone particles into the sand particles and the stone particles, the magnetic member is arranged opposite to the feeding end of the hammer crusher, the magnetic member is used for adsorbing ferrous impurities in the stone particles, and the fan is arranged opposite to the discharging end of the hammer crusher, and the fan is used for blowing gas.

[0009] By adopting the above technical scheme, the ferrous impurities in the stone particles are adsorbed by the magnetic member, so that the ferrous impurities can be avoided from affecting the resource utilization device to process the sand particles as much as possible, thereby improving the product quality produced by the resource utilization device, the gas is blown to the sand particles and the stone particles by the fan to separate light organic matters in the sand particles and the stone particles, so that the light organic matters can be avoided from affecting the resource utilization device to process the sand particles, thereby further improving the product quality produced by the resource utilization device.

[0010] Preferably, the feeding end of the jaw crusher is provided with a fixed grid for filtering organic matters with a size greater than a third preset diameter in the dredging sludge with the second water content, and the resource utilization device is further used for receiving and processing the organic matters.

[0011] By adopting the technical scheme, the fixed grid is arranged at the feeding end of the jaw crusher, and the fixed grid filters the organic matters in the second dredging sludge with a second water content, so that the jaw crusher and the hammer crusher can be prevented from crushing the organic matters, the number of the organic matter particles in the stone particles can be reduced as much as possible, and the product quality produced by the resource device can be improved.

[0012] Preferably, the multi-source dredging sludge treatment system further comprises a wheel-bucket sand washer connected with the screen, the wheel-bucket sand washer being configured to receive the sand particles, and the wheel-bucket sand washer being configured to wash the sand particles and separate the organic matters in the sand particles.

[0013] By adopting the technical scheme, the sand particles are washed by the wheel-bucket sand washer, and the sand particles are separated from the dredging sludge, small branches and small leaves in the sewage, so that the purity and the quality of the sand particles can be improved, and the product quality produced by the resource device can be further improved.

[0014] Preferably, the multi-source dredging sludge treatment system further comprises a separation device comprising a separation housing, a first conveying belt, a second conveying belt and an air separation element, the separation housing defining a separation space, the separation space forming a feeding port at a top wall of the separation housing, the feeding port being connected with the screen, the separation housing being configured to receive the stone particles, one end of the first conveying belt and one end of the second conveying belt being arranged in the separation housing, the other end of the first conveying belt and the other end of the second conveying belt extending out of the separation housing, the first conveying belt and the second conveying belt being arranged in a spaced-apart manner along a height direction of the separation housing, and the first conveying belt being arranged above the second conveying belt.

[0015] The air separation element has a gas injection port in communication with the separation space and located between the first conveying belt and the second conveying belt, the air separation element being configured to deliver gas to the separation space through the gas injection port to separate the organic impurities in the stone particles, the first conveying belt being configured to convey the organic impurities, the second conveying belt being configured to convey the stone particles, and the organic impurities being adapted to be delivered to the resource device.

[0016] By adopting the technical scheme, the stone particles are blown by the gas to separate the organic impurities from the stone particles, the separated organic impurities fall on the first conveying belt, the first conveying belt delivers the organic impurities out of the separation housing, the stone particles fall on the second conveying belt, and the second conveying belt delivers the stone particles into the jaw crusher, so that the technical effect of separating the organic impurities from the stone particles can be achieved, the number of the organic impurities in the sand particles when the stone particles are crushed into sand particles by the crushing device can be reduced, and the product quality produced by the resource device can be further improved.

[0017] Preferably, the multi-source dredged sludge treatment system further comprises a sewage treatment device, the sewage treatment device comprises a sewage pool, a water pump and a belt filter press, the sewage pool is in communication with the drum washing machine and is used to receive sewage of the drum washing machine, the water pump is arranged in the sewage pool, and the water pump is used to deliver sewage in the sewage pool to the belt filter press, the belt filter press is used to filter sewage and dewater sludge powder in the sewage to form a sludge cake, and the resource utilization device is further used to receive and process the sludge cake.

[0018] By adopting the above technical scheme, the belt filter press discharges liquid in the sewage to the external environment, so that the sludge powder in the sewage is retained in the belt filter press, and then the belt filter press presses the sludge powder into a sludge cake, and the resource utilization device receives the sludge cake and processes the sludge cake into planting soil and / or wetland filter material, so that the technical effect of resource utilization of sludge powder in the sewage can be achieved.

[0019] Preferably, the feeding device comprises a storage tank, a suction pipe and a vacuum pump, the storage tank defines a storage space, the storage tank is used to store dredged sludge, the storage tank is provided with a sewage discharge pipe, the sewage discharge pipe is connected with the feeding end of the drum washing machine, the sewage discharge pipe is provided with a control valve, the control valve is used to open or close the sewage discharge pipe, the vacuum pump and the suction pipe are both in communication with the storage space, the suction pipe is adapted to be in communication with a dredged sludge supply device, and the vacuum pump is used to suck gas in the storage tank, so that negative pressure is formed in the storage tank.

[0020] By adopting the above technical scheme, the vacuum pump sucks gas in the storage tank, so that negative pressure is formed in the storage tank, under the action of atmospheric pressure, dredged sludge is sucked into the storage tank through the suction pipe, when the storage amount of dredged sludge in the storage tank is equal to the preset storage amount of dredged sludge, the control valve opens the sewage discharge pipe, so that the dredged sludge in the storage tank flows into the drum washing machine, so that the technical effect of the feeding device delivering dredged sludge to the drum washing machine can be achieved.

[0021] Preferably, the resource utilization device is configured as a brick making machine, and the resource utilization device is used to process sand particles into brick blocks.

[0022] By adopting the above technical scheme, the sand particles are made into brick blocks by using the brick making machine, so that the technical effect of resource utilization of dredged sludge can be achieved, and the dredged sludge can be prevented from polluting the environment.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. The stone in the second water content dredging sludge is crushed into stone particles and sand particles by the crushing device, and the screen separates the sand particles from the stone particles. Compared with the prior art, the multi-source dredging sludge treatment system can recycle and process the second water content dredging sludge, so that the use experience of the multi-source dredging sludge treatment system can be improved;

[0025] 2. The sand particles are washed by using the wheel bucket sand washer, and the dredging sludge, small branches and small leaves in the sand particles and sewage are separated, so that the purity and quality of the sand particles can be improved, and the quality of the finished product produced by the resource device can be further improved;

[0026] 3. The vacuum pump sucks the gas in the storage tank to form negative pressure in the storage tank. Under the action of atmospheric pressure, the dredging sludge is sucked into the storage tank through the suction pipe. When the storage amount of the dredging sludge in the storage tank is equal to the preset storage amount of the dredging sludge, the control valve opens the drain pipe, so that the dredging sludge in the storage tank flows into the drum washing machine, so that the technical effect of feeding device conveying the dredging sludge to the drum washing machine can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a schematic diagram of a multi-source dredging sludge treatment system according to an embodiment of the present application;

[0028] Figure 2 is a schematic diagram of a crushing device according to an embodiment of the present application;

[0029] Figure 3 is a schematic diagram of a separation device according to an embodiment of the present application;

[0030] Figure 4 is a schematic diagram of another angle of the separation device according to an embodiment of the present application;

[0031] Figure 5 is a schematic diagram of part of the structure of the multi-source dredging sludge treatment system according to an embodiment of the present application.

[0032] BRIEF DESCRIPTION OF DRAWINGS:

[0033] 100, multi-source dredging sludge treatment system;

[0034] 1, feeding device; 11, storage tank; 111, storage space; 112, drain pipe; 113, control valve; 12, suction pipe; 13, vacuum pump;

[0035] 2, crushing device; 21, jaw crusher; 22, hammer crusher; 23, magnetic element; 24, fan; 25, fixed grid;

[0036] 3, drum washing machine; 4, screen; 5, resource device; 6, wheel bucket sand washer;

[0037] 7, separation device; 71, separation housing; 711, separation space; 712, feeding port; 72, first conveying belt; 73, second conveying belt; 74, pneumatic separator; 741, air jet port;

[0038] 8, sewage treatment device; 81, sewage pool; 82, water pump; 83, belt filter press. DETAILED DESCRIPTION

[0039] The following description will be made in conjunction with the accompanying drawings. Figures 1-5 The present application is further described in detail.

[0040] The embodiment of the present application discloses a multi-source dredging sludge treatment system 100.

[0041] Referring to Figure 1 The multi-source dredging sludge treatment system 100 according to the embodiment of the present application comprises a feeding device 1, a crushing device 2, a drum washing machine 3, a screen 4 and a resource device 5. The feeding device 1 is used to transport the first water content dredging sludge, and the crushing device 2 is used to receive the second water content dredging sludge and crush the second water content dredging sludge into sand particles not greater than a first preset diameter size and stone particles greater than the first preset diameter size. Specifically, the crushing device 2 is used to crush the stones in the second water content dredging sludge into sand particles and stone particles. It should be noted that when the crushing device 2 initially crushes the stones, the crushing device 2 cannot completely crush the stones into sand particles. The crushing device 2 can crush the stone particles multiple times so that the stone particles are completely crushed into sand particles, and the first water content dredging sludge contains sand particles.

[0042] In some specific embodiments, the first preset diameter size can be 10 mm.

[0043] Wherein, the first water content is greater than the second water content. In some specific embodiments, the first water content dredging sludge can refer to the dredging sludge with a water content rate of 30%-90%, and the second water content dredging sludge can refer to the dredging sludge with a water content rate of 10%-30%.

[0044] And the feeding device 1 and the crushing device 2 are connected with the feeding end of the drum washing machine 3. The feeding device 1 transports the first water content dredging sludge to the drum washing machine 3, and the crushing device 2 transports the sand particles and the stone particles to the drum washing machine 3. The screen 4 is arranged at the discharging end of the drum washing machine 3. The drum washing machine 3 is used to wash the sand particles and the stone particles. The screen 4 is used to screen the sand particles in the dredging sludge and screen the sand particles in the stone particles. The resource device 5 is used to receive and process the sand particles.

[0045] Specifically, the drum washing machine 3 washes the sand and the stone to remove the dredging sludge from the sand and the stone, the screen 4 screens the sand from the dredging sludge and the stone, and the screened sand is transported to the resource device 5 for processing to achieve the technical effect of resource utilization of the dredging sludge. Moreover, the multi-source dredging sludge treatment system 100 can simultaneously process the dredging sludge with the first water content and the dredging sludge with the second water content, thereby improving the user experience of the multi-source dredging sludge treatment system 100.

[0046] Moreover, the screened stone is suitable to be transported to the crushing device 2, and specifically, the crushing device 2 re-crushes the screened stone to completely crush the stone into sand, thereby achieving the technical effect of fully recycling the stone.

[0047] Further, the multi-source dredging sludge treatment system 100 can also be used to treat multi-source dredging materials, which include but are not limited to the bottom mud and the trench mud in the above-mentioned dredging sludge, and is also suitable for the treatment of sand, bottom mud of a water purification plant, a water plant, a pump station and a storage tank, sludge of a septic tank, and sludge of a waterworks.

[0048] In some specific embodiments, the resource device 5 can process the sand into bricks.

[0049] In some specific embodiments, the screen 4 can also be used to screen the sand in the plastic.

[0050] Therefore, the multi-source dredging sludge treatment system 100 can recycle and process the dredging sludge with the second water content through the crushing device 2 to crush the stone in the dredging sludge into the stone and the sand, and the screen 4 to screen the sand from the stone. Compared with the prior art, the multi-source dredging sludge treatment system 100 can recycle and process the dredging sludge with the second water content, thereby improving the user experience of the multi-source dredging sludge treatment system 100.

[0051] Referring to Figure 1 and Figure 2 In some embodiments of the present application, the crushing device 2 includes a jaw crusher 21, a hammer crusher 22, a magnetic element 23 and a fan 24, the jaw crusher 21 is connected with the feeding end of the hammer crusher 22, and the discharging end of the hammer crusher 22 is connected with the feeding end of the drum washing machine 3.

[0052] The jaw crusher 21 is configured to receive the second dewatered dredged sludge and crush the second dewatered dredged sludge into stones with a size not greater than a second preset diameter, specifically, the jaw crusher 21 is configured to crush large-diameter stones in the second dewatered dredged sludge into stones, and after the jaw crusher 21 completes the crushing, the jaw crusher 21 delivers the stones to the hammer crusher 22, and the hammer crusher 22 is configured to crush the stones into sand and stone particles, so that the stones in the second dewatered dredged sludge can be crushed into sand and stone particles, and after the hammer crusher 22 completes the crushing, the hammer crusher 22 delivers the sand and stone particles into the drum washing machine 3.

[0053] In some specific embodiments, the second preset diameter can be 60 mm, and in other specific embodiments, the second preset diameter can be 40 mm.

[0054] Further, the magnetic member 23 is arranged opposite to the feeding end of the hammer crusher 22, and the magnetic member 23 is configured to adsorb ferrous impurities in the stones, and the fan 24 is arranged opposite to the discharging end of the hammer crusher 22, and the fan 24 is configured to blow gas to the sand and stone particles.

[0055] Specifically, the ferrous impurities in the stones are adsorbed by the magnetic member 23, so that the ferrous impurities can be avoided to affect the processing of the sand particles by the resource utilization device 5, and thus the quality of the finished product produced by the resource utilization device 5 can be improved, and the fan 24 blows gas to the sand and stone particles to separate light organic matters in the sand and stone particles, so that the light organic matters can be avoided to affect the processing of the sand particles by the resource utilization device 5, and thus the quality of the finished product produced by the resource utilization device 5 can be further improved.

[0056] In some specific embodiments, the magnetic member 23 can be a magnet, but the present application is not limited thereto, and the magnetic member 23 can also be an electromagnet or the like.

[0057] Further, a conveyor belt is arranged between the jaw crusher 21 and the hammer crusher 22, and the conveyor belt is configured to deliver the stones into the hammer crusher 22, and the magnetic member 23 is arranged above the conveyor belt.

[0058] Referring to Figure 1 and Figure 2 In some embodiments of the present application, the feeding end of the jaw crusher 21 is provided with a fixed grid 25, and the fixed grid 25 is configured to filter organic matters with a size greater than a third preset diameter in the second dewatered dredged sludge, and the resource utilization device 5 is further configured to receive and process the organic matters, and in some specific embodiments, the third preset diameter can be 250 mm.

[0059] By setting the fixed grid 25 at the feeding end of the jaw crusher 21, the fixed grid 25 filters the organic matters in the second water content dredging sludge, so that the jaw crusher 21 and the hammer crusher 22 can be prevented from crushing the organic matters, the number of the organic matter particles in the stone particles can be minimized, and the product quality produced by the resource utilization device 5 can be improved.

[0060] The resource utilization device 5 is used for processing the organic matters larger than the third preset diameter size into the waste-derived fuel, so that the technical effect of resource utilization of the organic matters larger than the third preset diameter size can be achieved.

[0061] With reference to Figure 1 In some embodiments of the present application, the multi-source dredging sludge treatment system 100 can further include a wheel bucket sand washer 6, a feeding end of the wheel bucket sand washer 6 being connected with the screen 4, the wheel bucket sand washer 6 being used for receiving the sand particles, and the wheel bucket sand washer 6 being used for washing the sand particles and separating the organic matters in the sand particles.

[0062] In some specific embodiments, the organic matters in the sand particles can refer to the dredging sludge, but the present application is not limited thereto, and the organic matters in the sand particles can also refer to the small branches and small leaves, and it should be noted that the organic matters in the sand particles can refer to the organic matters with a diameter size not greater than 3 mm.

[0063] By washing the sand particles by using the wheel bucket sand washer 6 and separating the dredging sludge, the small branches and the small leaves in the sand particles and the sewage, the purity and the quality of the sand particles can be improved, and the product quality produced by the resource utilization device 5 can be further improved.

[0064] Further, a conveying belt can be arranged below the screen 4, the conveying belt being connected with the feeding end of the wheel bucket sand washer 6, and the conveying belt being used for receiving the sand particles and conveying the sand particles to the wheel bucket sand washer 6.

[0065] With reference to Figure 1 , Figure 3 and Figure 4 In some embodiments of the present application, the dredging sludge treatment device can further include a separation device 7, the separation device 7 including a separation housing 71, a first conveying belt 72, a second conveying belt 73 and an air separation element 74, the separation housing 71 defining a separation space 711, and the separation space 711 forming a feeding port 712 at a top wall of the separation housing 71, along a height direction of the separation housing 71, the top wall of the separation housing 71 referring to an upper end wall of the separation housing 71, the feeding port 712 being connected with the screen 4, the feeding port 712 of the separation housing 71 being used for receiving the stone particles, and a liquid existing in the separation housing 71, in some specific embodiments, the liquid can be water, and the height direction of the separation housing 71 can refer to the up-down direction in the separation housing 71. Figure 3

[0066] ​And, one end of the first conveyor belt 72 and one end of the second conveyor belt 73 are arranged in the separation housing 71, the other end of the first conveyor belt 72 and the other end of the second conveyor belt 73 are arranged outside the separation housing 71, the first conveyor belt 72 and the second conveyor belt 73 are arranged in the height direction of the separation housing 71, the first conveyor belt 72 is arranged above the second conveyor belt 73, specifically, the end of the first conveyor belt 72 arranged in the separation housing 71 is arranged above the end of the second conveyor belt 73 arranged in the separation housing 71, and the feeding port 712 is arranged above the first conveyor belt 72 and the second conveyor belt 73, and the end of the second conveyor belt 73 away from the separation housing 71 is connected with the feeding end of the jaw crusher 21.

[0067] The air separation device 74 has an air outlet 741, the air outlet 741 is communicated with the separation space 711 and is arranged between the first conveyor belt 72 and the second conveyor belt 73, the air separation device 74 transports gas to the separation space 711 through the air outlet 741 to separate the organic impurities in the stone particles, the first conveyor belt 72 is used for the organic impurities, the second conveyor belt 73 is used for conveying the stone particles, and the organic impurities are suitable to be transported to the resource device 5.

[0068] Specifically, when the stone particles enter the separation housing 71 through the feeding port 712, the air separation device 74 transports gas to the separation housing 71 through the air outlet 741, blows the stone particles by the gas to separate the organic impurities from the stone particles, the separated organic impurities fall on the first conveyor belt 72, the first conveyor belt 72 transports the organic impurities outside the separation housing 71, and the stone particles fall on the second conveyor belt 73, the second conveyor belt 73 transports the stone particles into the jaw crusher 21, so that the technical effect of separating the organic impurities from the stone particles can be achieved, so that the number of organic impurities in the sand particles when the stone particles are crushed into sand particles by the crushing device 2 can be reduced, and the quality of the finished product produced by the resource device 5 can be further improved.

[0069] In some specific embodiments, the organic impurities can refer to leaves, but the application is not limited thereto, and the organic impurities can also refer to cloth strips and the like.

[0070] In some specific embodiments, the air separation device 74 can be a gas pump, and the air outlet 741 is provided with a one-way valve for preventing liquid in the separation housing 71 from flowing back to the gas pump.

[0071] Reference Figure 1In some embodiments of the present application, the sewage treatment system can further comprise a sewage treatment device 8, the sewage treatment device 8 comprising a sewage pool 81, a water pump 82 and a belt filter press 83, the sewage pool 81 being in communication with the drum cleaning machine 3, the wheel-bucket sand washer 6 and the separation housing 71, and the sewage pool 81 being configured to receive sewage in the drum cleaning machine 3, the wheel-bucket sand washer 6 and the separation housing 71, the water pump 82 being disposed in the sewage pool 81, and the water pump 82 being configured to deliver the sewage in the sewage pool 81 to the belt filter press 83, it is to be noted that the sewage pool 81 is provided with a filter at an inlet end thereof, and the filter is configured to filter large-diameter-size garbage and organic impurities in the sewage.

[0072] The belt filter press 83 is configured to filter the sewage and to perform dewatering treatment on mud powder in the sewage to form a mud cake, and the resource utilization device 5 is further configured to receive and process the mud cake, specifically, when the sewage is delivered into the belt filter press 83, the belt filter press 83 discharges liquid in the sewage to the external environment, so that the mud powder in the sewage is retained in the belt filter press 83, and then the belt filter press 83 presses the mud powder into the mud cake, and the resource utilization device 5 receives the mud cake and processes the mud cake into planting soil and / or wetland filter material, so that the technical effect of utilizing the mud powder in the sewage for resource utilization can be achieved.

[0073] In some specific embodiments, the function of the belt filter press 83 can also be achieved by a plate-and-frame filter press.

[0074] With reference to Figure 5 In some embodiments of the present application, the feeding device 1 comprises a storage tank 11, a sewage suction pipe 12 and a vacuum pump 13, the storage tank 11 defining a storage space 111, the storage tank 11 being configured to store dredging sludge, the storage tank 11 being provided with a sewage discharge pipe 112, the sewage discharge pipe 112 being connected to an inlet end of the drum cleaning machine 3, the sewage discharge pipe 112 being provided with a control valve 113, the control valve 113 being configured to open or close the sewage discharge pipe 112, the vacuum pump 13 and the sewage suction pipe 12 being in communication with the storage space 111, the sewage suction pipe 12 being adapted to be in communication with a dredging sludge supply device, and the vacuum pump 13 being configured to suck gas in the storage tank 11 to form a negative pressure in the storage tank 11.

[0075] In some specific embodiments, the dredging sludge supply device can be a sewage suction tank truck, but the present application is not limited thereto, and the dredging sludge supply device can also be a dredging sludge receiving pool, the dredging sludge receiving pool being configured to receive a large amount of dredging sludge in a dredging sludge tank truck.

[0076] Specifically, the vacuum pump 13 sucks the gas in the storage tank 11 to form a negative pressure in the storage tank 11, and the dredging sludge is sucked into the storage tank 11 through the suction pipe 12 under the action of atmospheric pressure, when the storage amount of the dredging sludge in the storage tank 11 is equal to the preset storage amount of the dredging sludge, the control valve 113 opens the blow-off pipe 112, so that the dredging sludge in the storage tank 11 flows into the drum cleaning machine 3, thereby achieving the technical effect that the feeding device 1 transports the dredging sludge to the drum cleaning machine 3.

[0077] And when the drum cleaning machine 3 is working, the dredging sludge in the suction tank truck can be temporarily stored in the storage pipe, and the suction tank truck does not need to wait for the drum cleaning machine 3 to complete the work to transport the dredging sludge into the drum cleaning machine 3, thereby improving the working efficiency of the suction tank truck, and further improving the use experience of the multi-source dredging sludge treatment system 100.

[0078] In some embodiments of the present application, the resource device 5 is configured as a brick making machine, and the resource device 5 is used for processing sand particles into bricks. By using the brick making machine to make sand particles into bricks, the technical effect of resource utilization of dredging sludge can be achieved, and the environment can be prevented from being polluted by dredging sludge.

[0079] The above are preferred embodiments of the present application, but do not limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A multi-source dredged sludge treatment system, characterized in that, The utility model relates to a sand washing and resource utilization device, comprising: a feeding device (1) for conveying dredging sludge with a first water content; a crushing device (2) for receiving dredging sludge with a second water content and crushing the dredging sludge with the second water content into sand particles with a size not greater than a first preset diameter and stone particles with a size greater than the first preset diameter, wherein the first water content is greater than the second water content; a drum washing machine (3) and a screen (4), the feeding device (1) and the crushing device (2) are connected to an inlet end of the drum washing machine (3), the screen (4) is arranged at an outlet end of the drum washing machine (3), the drum washing machine (3) is used for washing the sand particles and the stone particles, and the screen (4) is used for screening the sand particles in the dredging sludge and screening the sand particles in the stone particles, and the screened stone particles are suitable for being conveyed to the crushing device (2); a resource utilization device (5) for receiving and processing the sand particles.

2. A multi-source dredged sludge treatment system according to claim 1, characterized in that, The crushing device (2) comprises a jaw crusher (21), a hammer crusher (22), a magnetic member (23), and a fan (24), the jaw crusher (21) is connected to an inlet end of the hammer crusher (22), an outlet end of the hammer crusher (22) is connected to the inlet end of the drum washing machine (3), the jaw crusher (21) is used for receiving the dredging sludge with the second water content and crushing the dredging sludge with the second water content into stone particles with a size not greater than a second preset diameter, the hammer crusher (22) is used for crushing the stone particles into the sand particles and the stone particles, the magnetic member (23) is arranged opposite to the inlet end of the hammer crusher (22), the magnetic member (23) is used for adsorbing ferrous impurities, and the fan (24) is arranged opposite to the outlet end of the hammer crusher (22), and the fan (24) is used for blowing gas.

3. A multi-source dredged sludge treatment system according to claim 2, characterized in that, The inlet end of the jaw crusher (21) is provided with a fixed grid (25) for filtering organic matters with a size greater than a third preset diameter in the dredging sludge with the second water content, and the resource utilization device (5) is further used for receiving and processing the organic matters.

4. A multi-source dredged sludge treatment system according to claim 1, wherein, Further comprising: a wheel and bucket sand washing machine (6) connected to the screen (4), the wheel and bucket sand washing machine (6) is used for receiving the sand particles, and the wheel and bucket sand washing machine (6) is used for washing the sand particles and separating organic matters in the sand particles.

5. A multi-source dredged sludge treatment system according to claim 1, wherein, Further comprising: The separating device (7) comprises a separating shell (71), a first conveying belt (72), a second conveying belt (73) and an air separation device (74), the separating shell (71) defines a separating space (711), and the separating space (711) forms a feeding port (712) on the top wall of the separating shell (71), the feeding port (712) is connected with the screen (4), the separating shell (71) is used for receiving stones, one end of the first conveying belt (72) and one end of the second conveying belt (73) are arranged in the separating shell (71), the other end of the first conveying belt (72) and the other end of the second conveying belt (73) extend out of the separating shell (71), the first conveying belt (72) and the second conveying belt (73) are arranged in a spaced manner along the height direction of the separating shell (71), and the first conveying belt (72) is located above the second conveying belt (73); The air separation device (74) has a gas injection port (741) which communicates with the separating space (711) and is located between the first conveying belt (72) and the second conveying belt (73), the air separation device (74) supplies gas to the separating space (711) through the gas injection port (741) to separate organic impurities in the stones, the first conveying belt (72) is used for organic impurities, the second conveying belt (73) is used for conveying stones, and the organic impurities are suitable to be transported to the resource device (5).

6. A multi-source dredged sludge treatment system according to claim 1, wherein, Further comprising: The sewage treatment device (8) comprises a sewage tank (81), a water pump (82) and a belt filter press (83), the sewage tank (81) communicates with the drum cleaning machine (3) and is used for receiving sewage of the drum cleaning machine (3), the water pump (82) is arranged in the sewage tank (81), and the water pump (82) is used for transporting sewage in the sewage tank (81) to the belt filter press (83), the belt filter press (83) is used for filtering sewage and dewatering mud powder in the sewage to form a mud cake, and the resource device (5) is also used for receiving and processing the mud cake.

7. A multi-source dredged sludge treatment system according to claim 1, wherein, The feeding device (1) comprises a storage tank (11), a sewage suction pipe (12) and a vacuum pump (13), the storage tank (11) defines a storage space (111), the storage tank (11) is used for storing dredging sludge, the storage tank (11) has a sewage discharge pipe (112) which is connected with the feeding end of the drum cleaning machine (3), the sewage discharge pipe (112) is provided with a control valve (113) which is used for opening or closing the sewage discharge pipe (112), the vacuum pump (13) and the sewage suction pipe (12) communicate with the storage space (111), the sewage suction pipe (12) is suitable to communicate with a dredging sludge supply device, and the vacuum pump (13) is used for sucking gas in the storage tank (11) to form negative pressure in the storage tank (11).

8. The multi-source dredged sludge treatment system of claim 1, wherein, The resource device (5) is configured as a brick making machine, and is used for processing sand particles into bricks.

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