CN213012290U - Rainwater treatment system for coal piling port - Google Patents

Abstract

The utility model relates to a municipal drainage technical field discloses a rainwater processing system for coal piling harbour, including the catch basin, regulation sedimentation tank, integration treatment facility and the retrieval and utilization pond that communicate in proper order to and with the sludge impoundment of regulation sedimentation tank and integration treatment facility intercommunication, with the sludge dewatering workshop of sludge impoundment intercommunication, the utility model discloses to coal piling harbour rainwater characteristics, can the efficient handle contain the coal rainwater, improve coal piling harbour mouth water ecology, reduce the cost of labor, and have the advantage that the flow is simple, area is little, construction convenience.

Description

Rainwater treatment system for coal piling port

Technical Field

The utility model relates to a coal-containing rainwater processing technology field specifically relates to a rainwater processing system for coal piling port.

Background

Coal is the largest cargo in China coastal transportation, large coal yards in ports of China are more, and an open storage yard is the most widely used storage mode for a large-transportation-capacity specialized coal wharf. However, open coal stockpiling can produce a large amount of coal-containing sewage (flushing wastewater of wharfs, galleries and transfer stations, wastewater produced by dust-proof spraying of storage yards, and coal-containing runoff rainwater). The port coal yard is close to the sea, and the yard is small in soil and gold in size, so that the coal-containing rainwater can be treated up to the standard, the urban water environment quality can be improved, the influence of the port area on the marine environment can be reduced to a certain extent, the working environment of enterprise staff can be improved, and the sustainable development of enterprises can be promoted. Therefore, the coal-containing rainwater in the coal yard is treated by adopting a simple, efficient and land-saving scheme, which is a difficult problem in the current environmental protection field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rainwater processing system for coal piling harbour handles the large-scale coal yard in harbour coal-containing rainwater with a simple high efficiency, the mode that takes up an area of province, makes it discharge to reach standard.

In order to achieve the above object, the utility model provides a following technical scheme:

a rainwater treatment system for a coal piling port is characterized in that: the water treatment system comprises a water collecting tank, a regulating sedimentation tank, integrated treatment equipment and a reuse water tank which are sequentially communicated.

Preferably, a cam pump for lifting sewage to the adjusting sedimentation tank is arranged in the water collecting tank, the cam pump is a container type combined floating mechanical sealing structure, and a rotor of the cam pump is a nano composite wear-resistant rubber rotor and is controlled to operate through an intelligent control system.

Further preferably, the adjusting sedimentation tank is provided with three compartments, the tail end of the adjusting sedimentation tank is provided with a water suction pit, and the bottom of the adjusting sedimentation tank is a slope with the gradient of 1%.

Further preferably, a sewage lifting pump is arranged in the adjusting sedimentation tank water suction pit.

Further preferably, the integrated treatment equipment comprises a dosing system for adding alum, a micro-resistance mixer, a flocculation reaction tank, a copolymerization grade honeycomb inclined tube sedimentation system and a sludge discharge system, wherein the sludge discharge system comprises a sludge discharge hopper, a sludge discharge tube and a quick-opening sludge discharge valve.

Preferably, the water treatment system is further provided with a sludge tank communicated with the adjusting sedimentation tank and the integrated treatment equipment, an outlet of the sludge tank is communicated with a sludge dewatering workshop, and an outlet of a supernatant of the sludge dewatering workshop is communicated with the adjusting sedimentation tank.

Still further preferably, the sludge tank is a gravity concentration tank and is provided with a sludge screw pump.

The utility model discloses the advantage does:

1. aiming at the characteristic that rainwater flowing through the coal piling port contains high-concentration suspended matters, the cam pump is used, and the sealing structure and the wear-resistant rotor of the cam pump can increase the rainwater treatment efficiency and have long service life.

2. By adopting an integrated and intelligent treatment system, the port rainwater can be effectively treated in time, and the labor cost is reduced.

3. The port sewage discharge has the characteristic of intermittency, and the front end of the port sewage discharge is provided with a regulating sedimentation tank for regulating the water quantity and pretreating bulk cargo sewage. When the rainfall is not rainfall, the adjusting sedimentation tank collects domestic sewage, and the yard conveying system washes and removes dust system sewage; when it rains, the regulating sedimentation tank collects and treats the runoff rain sewage in the early stage of the storage yard, and the later stage rain water is directly discharged.

Drawings

FIG. 1 is a schematic view of a treatment system of the present invention;

in the figure: 1 a collecting tank, 2 an adjusting sedimentation tank, 3 an integrated treatment device, 4 a reuse water tank, 5 a sludge tank and 6 a sludge dewatering workshop.

Detailed Description

As shown in figure 1, the utility model relates to a rainwater processing system for coal piling port, including catch basin 1, regulation sedimentation tank 2, integration treatment facility 3 and reuse water tank 4 that communicate in proper order to and with the sludge impoundment 5 of regulation sedimentation tank 2 and integration treatment facility 3 intercommunication, with the sludge dewatering workshop 6 of sludge impoundment intercommunication.

The main sewage source of the project is a large amount of waste water generated in a coal yard in rainy days, the suspended matters of inlet water are extremely high, in order to ensure the normal operation of a water inlet pump and a subsequent treatment working section, a cam pump is adopted to lift the water in a water collecting tank 1 to an adjusting sedimentation tank 2, and the cam pump has the main function of lifting the sewage in the water collecting tank 1 to the adjusting sedimentation tank 2; because this storage yard is mainly coal stone, the sewage suspended solid concentration of production is higher, compares various water pump forms, and this design adopts the cam pump. And has the following characteristics:

1) the integrated combined floating mechanical seal is adopted to replace the existing spring thrust type mechanical seal structure;

2) the pump rotor adopts a nano composite wear-resistant rubber rotor, is dry-resistant to run, has the idle time of more than 60 minutes, and has a firm and durable pump body and long service life;

3) the rotor profile design is optimized by adopting wide-head sealing, the sealing of the rotor and the pump is ensured to be surface sealing, and the extremely strong vacuum capacity of the unit can be ensured even if the rotor is worn;

4) the special mechanical seal is adopted, the structure of the sealing surface is unique, the lubrication is sufficient, the air resistance is avoided, the convection of a cooling medium is sufficient, the dry grinding, high temperature, cracking and failure of the sealing surface can be effectively prevented, and the normal operation of a pump unit is ensured. No blockage, strong trafficability: the use of the pump cannot be influenced by common plastic bags, woven bags, sand, slurry, hair and other sundries;

5) the integrated control system comprises: an intelligent control system is developed by adopting an advanced embedded system, so that intelligent monitoring is realized;

6) the medium permeability is extremely strong, and the maximum passing particle reaches more than 90 mm.

The adjusting sedimentation tank 2 is mainly used for storing sewage which is lifted by the cam pump, adjusting water quality and water quantity and settling particles. Sewage is converged into the adjusting sedimentation tank 2, the sewage in the initial runoff storage yard is intercepted, and later rainwater is discharged into the ocean through the overflow pipe of the existing drain outlet. Because the sewage discharge in the harbor area has the characteristic of intermittence, a regulating sedimentation tank is arranged at the front end of the process, the water quantity is regulated, and the bulk cargo sewage is pretreated. When the rainfall is not rainfall, the adjusting sedimentation tank collects domestic sewage, and the yard conveying system washes and removes dust system sewage; when it rains, the regulating sedimentation tank collects and treats the runoff rain sewage in the early stage of the storage yard, and the later stage rain water is directly discharged. Two partition walls are arranged in the middle of the adjusting sedimentation tank 2, the tank is divided into three compartments, a V-shaped sludge settling tank is arranged at the position, close to the water inlet tank, of the adjusting sedimentation tank, and a water suction pit is arranged at the tail end of the sedimentation tank. The bottom of the tank is provided with a 1% slope, and sludge is collected conveniently from the slope at the tail end of the tank to the sludge settling tank at the front end. The top of each compartment is provided with a hole, a mud cleaning vehicle can be placed in the compartment, and the mud is cleaned manually. A sewage lifting pump and a sludge lifting pump are arranged in the tank. The sewage lifting pump is arranged in a water suction pit at the tail end of the sedimentation tank; the sludge lifting pump is arranged at the front end of the sedimentation tank.

The integrated processing apparatus 3 mainly includes:

1) the chemical feeding system and alum addition are important links in the whole process flow, and polyaluminium chloride is selected in the process.

2) The micro-resistance mixer not only has the function of mechanical stirring and mixing, but also has the characteristic of low head loss mixing, and simultaneously has the advantages of simple structure, maintenance-free, blockage-prevention and the like of a tubular mixer.

3) The flocculation reaction tank is provided with grids in the direction perpendicular to the water flow. The surface of the grid is smooth, beautiful and uniform in color.

4) The copolymerization grade honeycomb inclined pipe and the hole type stainless steel water collecting tank collect water.

5) In the sludge discharge system, a sludge discharge hopper and a sludge discharge pipe are adopted in the reaction area and the sedimentation area and combined with a quick-opening sludge discharge valve to discharge sludge, and the quick-opening sludge discharge valve is small in size, quick to open, thorough in sludge discharge and water-saving.

The reuse water tank 4 is mainly used for storing effluent reaching the standard and is also used as a water source for spraying and washing in a harbor area yard and backwashing of a water purifier.

The sludge tank 5 is mainly used for collecting sludge passing through the integrated treatment equipment 3 and the adjusting sedimentation tank 2, conveying the sludge to a sludge dewatering workshop 6, and then transporting the sludge which reaches the standard after treatment.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A rainwater treatment system for a coal piling port is characterized in that: the rainwater treatment system comprises a water collecting tank (1), an adjusting sedimentation tank (2), an integrated treatment device (3) and a reuse water tank (4) which are sequentially communicated, wherein a cam pump for lifting sewage to the adjusting sedimentation tank (2) is arranged in the water collecting tank (1).

2. The rainwater processing system for a coal piling port according to claim 1, wherein: the cam pump is a cartridge type combined floating mechanical sealing structure, and the rotor of the cam pump is a nano composite wear-resistant rubber rotor which is controlled to operate by an intelligent control system.

3. The rainwater processing system for a coal piling port according to claim 1, wherein: the adjusting sedimentation tank (2) is provided with three compartments, the tail end of the adjusting sedimentation tank (2) is provided with a water suction pit, and the bottom of the tank is a slope with the gradient of 1%.

4. A rainwater processing system for a coal piling port according to claim 3, wherein: and a sewage lifting pump and a sludge lifting pump are arranged in the water absorption pit of the adjusting sedimentation tank (2).

5. The rainwater processing system for a coal piling port according to claim 1, wherein: the integrated treatment equipment (3) comprises a dosing system for adding alum, a micro-resistance mixer, a flocculation reaction tank, a copolymerization grade honeycomb inclined tube sedimentation system and a sludge discharge system, wherein the sludge discharge system comprises a sludge discharge hopper, a sludge discharge tube and a quick-opening sludge discharge valve.

6. A rainwater processing system for a coal piling port according to any one of claims 1 to 5, wherein: the rainwater treatment system is also provided with a sludge tank (5) communicated with the adjusting sedimentation tank (2) and the integrated treatment equipment (3), the outlet of the sludge tank (5) is communicated with a sludge dewatering workshop (6), and the supernatant outlet of the sludge dewatering workshop (6) is communicated with the adjusting sedimentation tank (2).

7. The rainwater processing system for a coal piling port according to claim 6, wherein: the sludge tank (5) is a gravity concentration tank and is provided with a sludge screw pump.

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