A port dumper contains coal sewage collection and treatment system

Abstract

The utility model belongs to sewage treatment technical field relates to a port dumper coal-containing sewage collection and treatment system, including sewage collection and treatment mechanism, flushing mechanism and sludge treatment mechanism, sewage collection and treatment mechanism include processing base, is provided with coal slime sedimentation tank and coal slime storage tank on this processing base, is provided with drainage slope in the front of coal slime sedimentation tank, is provided with drainage open ditch between coal slime sedimentation tank and coal slime storage tank, is provided with the mud barrier in the top of drainage open ditch, flushing mechanism sets up in the top of drainage slope, and sludge treatment mechanism sets up in coal slime storage tank. The utility model through the synergies of flushing spray head, drainage slope, coal slime sedimentation tank and mud barrier, can efficiently deposit coal slime and other impurities in coal slime sewage. The flushing spray head ensures that the coal slime can smoothly slide to the coal slime sedimentation tank, and the mud barrier effectively blocks the coal-containing sewage, realizing the dry and wet separation of the ground, greatly improving the efficiency of the coal slime sedimentation and reducing the difficulty of subsequent treatment.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology and relates to a coal-containing wastewater collection and treatment system for port tippers. Background Technology

[0002] In today's port operations, coal, as a crucial commodity, undergoes frequent and large-scale loading, unloading, storage, and transportation. Especially during port tippler operations, dust and material particles are generated as coal flows through the port.

[0003] Existing port tippers primarily rely on manual sweeping or washing to remove coal particles and dust spilled onto the ground. This method is inefficient and leads to secondary dust pollution. Furthermore, manual washing consumes a large amount of water, and the resulting coal-containing wastewater enters drainage ditches and collects in sedimentation tanks. The simultaneous sedimentation of coal and dust during water flow causes significant accumulation of material and dust in the main drainage ditch, requiring regular manual cleaning. Simultaneously, due to safety concerns, simultaneous cleaning and washing operations cannot be performed while the tippers and conveyor belts are in operation. This method suffers from low automation, is time-consuming and labor-intensive, and has low cleaning efficiency; moreover, it results in a significant waste of water resources.

[0004] Dust cleaning and coal-containing wastewater collection are common problems in the coal unloading and transfer process of port tippers. Therefore, there is an urgent need for a highly automated, low-cost, and efficient dust cleaning and coal-containing wastewater collection and treatment system. Summary of the Invention

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a coal-containing sewage collection and treatment system for port tippers.

[0006] The technical problem solved by this utility model is achieved through the following technical solution: A coal-containing wastewater collection and treatment system for port tippers, characterized in that it includes a wastewater collection and treatment mechanism, a flushing mechanism, and a sludge treatment mechanism. The wastewater collection and treatment mechanism includes a treatment foundation made of cement. A coal sludge sedimentation tank and a coal sludge storage tank are arranged sequentially from front to back on the treatment foundation. A diversion slope is provided in front of the coal sludge sedimentation tank. A row of diversion ditches is arranged at intervals between the coal sludge sedimentation tank and the coal sludge storage tank. A sludge-blocking embankment is provided on the side of the diversion ditches near the coal sludge sedimentation tank. The flushing mechanism is located above the diversion slope, and the sludge treatment mechanism is located inside the coal sludge storage tank.

[0007] Furthermore, the flushing mechanism includes a flushing pipe, a flushing electric valve, and a flushing nozzle. One end of the flushing pipe is connected to a pressure pipe, and the other end of the flushing pipe is connected to the flushing nozzle through the flushing electric valve.

[0008] Furthermore, it also includes a filtration device, which is installed at the front of the coal slime storage tank.

[0009] Furthermore, the coal slime treatment mechanism includes a level gauge, a first mud pump, a second mud pump, a stirring pump, a first vent valve, and a second vent valve. The level gauge, the first mud pump, the second mud pump, and the stirring pump are all placed in the coal slime storage tank. The first mud pump is connected to the top of the belt conveyor through a first pipe, and the second mud pump is connected to the sedimentation tank through a second pipe. A third branch is connected to the first pipe and the second pipe, respectively, for installing the first vent valve and the second vent valve.

[0010] The advantages and positive effects of this utility model are: The coal-containing wastewater collection and treatment system at this port utilizes the synergistic effect of flushing nozzles, diversion slopes, coal slime sedimentation tanks, and sludge barriers to efficiently settle impurities such as coal slime in the wastewater. The flushing nozzles flush the diversion slope at a specific angle, ensuring the coal slime slides smoothly into the sedimentation tank, while the sludge barriers effectively block the coal-containing wastewater, achieving dry-wet separation on the ground. This significantly improves the efficiency of coal slime sedimentation and reduces the difficulty of subsequent treatment. The filtration unit, located downstream of the drainage ditch, precisely filters coal-containing wastewater, removing residual coal particles and providing a higher-quality water source for subsequent wastewater treatment. The sludge treatment unit uses a level gauge to monitor the depth of the coal-containing wastewater, enabling interlocked control of the sludge pumps. This allows for precise treatment of coal-containing wastewater under different operating conditions, ensuring high efficiency and stability in wastewater treatment.

[0011] This patent provides two different treatment methods for conveyor belts transporting different types of coal. When transporting dusty coal, the coal-containing wastewater is lifted onto the conveyor belt for dust removal, thus treating the wastewater and reducing dust. When transporting non-dusty coal, the coal-containing wastewater can be discharged into an open-air sedimentation tank when the liquid level in the coal slime storage device reaches its limit. This allows for flexible responses to different operating conditions and improves the adaptability and practicality of the wastewater treatment system. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Explanation of reference numerals in the attached figures 1- Flushing electric valve, 2- Flushing nozzle, 3- Coal slime sedimentation tank, 4- Drainage ditch, 5- Filter device, 6- Level gauge, 7- First mud pump, 8- Agitator pump, 9- Second mud pump, 10- Coal slime storage tank, 11- Second vent valve, 12- First vent valve, 13- Mud barrier, 14- Drainage slope. Detailed Implementation

[0014] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings: An innovative system for collecting and treating coal-containing wastewater from a port tipper includes a wastewater collection and treatment mechanism, a flushing mechanism, and a sludge treatment mechanism. The wastewater collection and treatment mechanism comprises a treatment foundation made of cement. From front to back, a coal sludge sedimentation tank 3 and a coal sludge storage tank 10 are arranged on the treatment foundation. A diversion slope 14 is provided in front of the coal sludge sedimentation tank. A row of diversion ditches 4 are arranged at intervals between the coal sludge sedimentation tank and the coal sludge storage tank. A sludge-blocking embankment 13 is provided above the diversion ditches on the side near the coal sludge sedimentation tank. The flushing mechanism is located above the diversion slope, and the sludge treatment mechanism is located inside the coal sludge storage tank.

[0015] The diversion slope is located in the equipment installation area at the bottom of the tipper and has a certain slope, usually 3-5°. That is, the slope is higher on the side closer to the flushing mechanism and lower on the side closer to the coal slime sedimentation tank, so as to allow the coal-containing wastewater to flow freely downward.

[0016] The coal slime sedimentation tank is located downstream of the diversion slope. The function of the coal slime sedimentation tank is to centrally receive coal slime-containing wastewater, centrally settle coal slime and other impurities in the coal slime wastewater, and separate the lower coal slime and the upper coal water in the coal slime sedimentation tank.

[0017] The sludge barrier is located downstream of the coal sludge settling tank, and its height is higher than the lowest point of the diversion slope. Its function is to form a concentrated coal sludge settling space with the coal sludge settling tank.

[0018] The upstream end of the diversion ditch passes through the sludge retaining wall and connects to the coal slime settling tank. A certain height difference is maintained between the upstream of the diversion ditch and the bottom of the coal slime settling tank. The flow surface of the diversion ditch has a certain slope, which serves to collect and rapidly divert sewage. The number of diversion ditches needs to be designed according to the width of the diversion slope. A cover plate can be added above the diversion ditch to protect pedestrian safety.

[0019] The coal slime storage tank is located downstream of the diversion ditch and its function is to temporarily store coal slime wastewater.

[0020] The flushing mechanism includes a flushing pipe, a flushing electric valve 1, and a flushing nozzle 2. One end of the flushing pipe is connected to a pressure pipe, and the other end is connected to the flushing nozzle via the flushing electric valve. The flushing electric valve is a graded controllable electric valve, and the flushing nozzle is a high-flow-rate duckbill nozzle, forming a continuous spray coverage area located above the drainage slope. The flushing electric valve achieves graded automatic control of the water flow, resulting in a reasonable spray flow, good flushing effect, and maintaining a certain angle with the drainage slope.

[0021] It also includes a filter device 5, which is installed at the front of the coal slime storage tank. The inlet of the filter device is connected to the outlet of the drainage ditch. In this embodiment, the filter device is a filter plate.

[0022] The function of the coal slime treatment unit is to treat different types of coal using different methods. The coal slime treatment unit includes a level gauge 6, a first mud pump 7, a second mud pump 9, a stirring pump 8, a first vent valve 12, and a second vent valve 11. The level gauge, the first mud pump, the second mud pump, and the stirring pump are all placed inside the coal slime storage tank. The first and second mud pumps are used to stir the coal slime in the storage tank. The first mud pump is connected to the tail receiving point of the belt conveyor via a first pipe, and the second mud pump is connected to the wastewater sedimentation tank of the tipper via a second pipe. A third branch line, on which the first and second vent valves are installed, is connected to the first and second pipes respectively.

[0023] The level gauge is used to detect the depth of coal-containing wastewater in the coal slime storage tank and to interlock the flushing mechanism, stirring pump, first mud pump or second mud pump.

[0024] The first mud pump is used to extract the stirred coal mud from the coal mud storage tank and discharge it onto the conveyor belt. A first vent valve is installed in the bypass of the first mud pump to vent the coal mud in the pipeline after the mud pump stops working, so as to protect the first mud pump.

[0025] The second mud pump is used to extract the stirred coal slurry from the coal slurry storage tank and discharge it to the open-air sedimentation tank. A second vent valve is installed in the bypass of the second mud pump to vent the coal slurry in the pipeline after the second mud pump stops working, so as to protect the second mud pump.

[0026] Treatment of coal types that easily generate dust: The production operation system identifies the coal being transported by the belt conveyor as dust-generating coal and sends a water spraying command to the PLC system for the flushing mechanism. The PLC system reads the liquid level counter value. When the liquid level value is higher than the first preset value H1, the stirring pump is started and runs for a period of time T1. After the mixing pump has run for time T1, the first mud pump starts, lifting coal-containing wastewater onto the conveyor belt for dust removal. When the PLC system detects a stop signal from the conveyor belt, the first mud pump stops running. During the operation of the mud pump, when the PLC detects that the liquid level is lower than the second preset value H2, the mud pump stops working.

[0027] Treatment of coal types that are not prone to dust generation: The production operation system identified that the coal being transported by the belt conveyor was a non-dust-generating coal type and kept the first mud pump in a stopped state. The PLC system reads the liquid level value. When the liquid level value is higher than the third preset value (H3), the stirring pump is started and runs for a period of time (T1). After the mixing pump has run for time T1, the second mud pump starts, lifting the coal-containing wastewater to the open-air sedimentation tank. During the operation of the second mud pump, when the liquid level drops below the fourth preset value H4, the second mud pump stops working.

[0028] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A coal-containing wastewater collection and treatment system for port tippers, characterized in that: The system includes a wastewater collection and treatment facility, a flushing facility, and a sludge treatment facility. The wastewater collection and treatment facility includes a treatment foundation made of cement. From front to back, a coal slime sedimentation tank and a coal slime storage tank are arranged on the treatment foundation. A diversion slope is provided in front of the coal slime sedimentation tank. A row of diversion ditches is arranged at intervals between the coal slime sedimentation tank and the coal slime storage tank. A sludge-blocking embankment is provided above the diversion ditches on the side near the coal slime sedimentation tank. The flushing facility is located above the diversion slope, and the sludge treatment facility is located inside the coal slime storage tank.

2. The coal-containing wastewater collection and treatment system for a port tipper according to claim 1, characterized in that: The flushing mechanism includes a flushing pipe, a flushing electric valve, and a flushing nozzle. One end of the flushing pipe is connected to a pressure pipe, and the other end of the flushing pipe is connected to the flushing nozzle through the flushing electric valve.

3. The coal-containing wastewater collection and treatment system for a port tipper according to claim 1, characterized in that: It also includes a filtration device, which is installed at the front of the coal slime storage tank.

4. The coal-containing wastewater collection and treatment system for port tippers according to claim 1, characterized in that: The coal slime treatment mechanism includes a level gauge, a first mud pump, a second mud pump, a stirring pump, a first vent valve, and a second vent valve. The level gauge, the first mud pump, the second mud pump, and the stirring pump are all placed in the coal slime storage tank. The first mud pump is connected to the top of the belt conveyor through a first pipe, and the second mud pump is connected to the sedimentation tank through a second pipe. A third branch is connected to the first pipe and the second pipe, respectively, and the first vent valve and the second vent valve are installed thereon.

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