A device for the disposal of waste during the cleaning of rail tank cars from the remnants of the transported oil products

 

(57) Abstract:

The device is designed to clean and prepare the tanks for filling and disposal of generated waste. The device comprises a track, the tray system of collection and disposal of sewage, made in the form of two pipes that are laid without slope below the rail head out of the rut. At each position of the pipe communicated with each other on top of the reservoir gates. One of the pipes is provided with a device for the purification of wastewater from oil and solids and communicated with the tank clarified water tank to collect oil and sludge space. The second pipe is communicated with a reservoir for collecting oil and sludge space. Both pipes have valves for steam or compressed air. Inside track is an individual receiver drains, communicated with the reservoir. The collector is connected with the rotary pipe to the drain valve of the tank. The device is equipped with a forced ventilation system with refrigerant vapor emissions. The result of the invention is to reduce the harmful effects on the environment, reduce energy consumption, ensuring compactness of the device. 3 C.p. f-crystals, 3 ill.

From what ive and for the disposal of generated waste.

A device for the disposal of waste during the cleaning of rail tank cars from the remnants of the transported oil products containing outdoor gravity collection tray placed inside the rail gauge, the receiving pit, flotation machine, settling, flotation machine, multi, tank purified water pumps. (Water use and wastewater treatment in railway transport. Belan, A. E., Bloshenko, N.- M.: Transport, 1978, S. 147, Fig. 56).

The presence in the known device the open tray for the collection and disposal of sewage, placed inside the track between the rails, calls for the necessity of each rail technological ways to clean the tanks to be stacked on a single poluspal and fix them independently of each other, which requires the laying of the track on a solid concrete base, complicates the design and leads to a sharp rise Podbelskogo Foundation, in addition to clean, open tray, placed inside the technological path, you need to release the latter from the tank and terminate in a long time preparing the tanks for loading that causes a disturbance of the rhythm of the transportation process.

Known to the mouth of the containing technological ways with open trays inside track for the collection and disposal of sewage, neftelovushku, flotation machine, tanks for water and oil pumps, water recycling and water supply to the washing tank. (The tank. The device, maintenance, repair. The Handbook. C. K. Gubenko and others - M.: Transport, 1990, S. 62, Fig. 2.5).

In the known device the process of steaming, cleaning and degassing tank is accompanied by a large amount of harmful emissions into the atmosphere vaporous hydrocarbons through the upper neck, the bottom drain valve of the processing tank, and open trays.

A device for besprovodnoy processing tanks containing tank for flushing water with proobeagreeld, the device for mechanized washing, open the tray drains, neftelovushku, pumps for supplying attorney water and pumping of petroleum products (Rail transport, No. 9, 1986, S. 43).

The disadvantages of the known device is that the open tray inside the track is not suitable for separate discharge at each residue position of the oil and wash water and therefore provides a two-position processing tanks. Drain large residue of petroleum products is carried out in specially equipped items, and cleaning on tettelin positions for discharge of waste oil products last merge into a tray, mixed with the wash water, which causes the need to increase the capacity of the treatment plant and the cost of their operation and maintenance.

In the known device, the tray is made with a bias and does not provide for the detention of the main mass of solid impurities, which leads to rapid silting of reservoirs, layered oil storehouses, machines, and cleaning of the mentioned structures from sludge operation is poorly mechanized and labor-intensive.

A device for the preparation of tanks for loading on washing and steaming station containing waste trays for water from the flush tank, the heated tray for the reception and disposal of residual product, settling tanks, mechanized sand trap, flotation machine-sump, necessasary, pumps (wastewater treatment enterprises of railway transport. UNTO of railway workers and transport builders.- M: Transport. 1989, S. 39 - 51, Fig. 4.2).

In the known device does not have a sealing system in the processing tank from emissions of gaseous hydrocarbons, the trays are placed inside a rut that requires a solid concrete base for laying the track. In addition, the drain of the p the world of work for relocation of tanks with an open tray for draining residual oil is made heated.

The invention is directed to solving such tasks as providing an environmentally friendly cleaning process tanks from the remnants of the transported oil products and increasing efficiency by heat treatment and washing tanks in a closed circuit without emissions vaporous hydrocarbons into the atmosphere.

The device should be separated draining residual oil and wash water tanks in all positions simultaneously without additional shunting operation, and full mechanization of harvest and transport of sediment in the silt area.

The technical result of the invention is to reduce the harmful effects of processes on the environment, reducing energy intensity and ensuring compactness of the device.

A device for recycling waste contains track, a supply means for internal processing tanks, including piping water and steam system for the collection and disposal of wastewater with collapsible trays, a device for purification of wastewater from oil and solids, the system of collecting, transportatio vaporous hydrocarbons.

The tray system of collection and disposal of wastewater is made in the form of two tubes, which are without bias rail head out of the rut for processing tanks, and at each position of the pipe communicated with each other on top of the reservoir gates. Collectors reported above with swivel piping, performed with the possibility of a tight connection to the bottom drain valve of the tank that allows through installed at the outlets of the manifold pneumopathy to provide at each position of the separate discharge of the cleaned tank residue oil and wash water in one of the two pipes of the tray, without generating a permutation of the tank to another position.

The presence at each position inside the track of individual receivers drains, communicated with collectors, also allows you to collect rainfall and flood runoff. In addition, the receivers are equipped with drains in the lower zone of the threaded plugs to connect to, if necessary, to the source of steam for heating and cleaning of the pipe connecting the receiver with collectors.

Treatment of wastewater from oil and solids directly into the tray, and full mechanization of collection and transportation of solid sludge on sludge Posaconazole to release the water, oil and sediment, as well as valves for compressed air or steam. This design of the tray ensures minimum adjustable flow rate and the maximum loss of solids in the sludge.

The presence of pneumotachograph on the inlet and outlet of waste water from the pipes enables the work of these pipes in the pressure regime and removal of sediment in the silt area by compressed air or steam. Pipe tray can also be used as tanks sumps. One of the pipes of the tray is provided with a device for the purification of wastewater from oil and solids and reported using paddles on the output tank clarified water tank for collecting oil and sludge space, and the second is supplied at the output of gates and communicated with a reservoir for collecting oil and sludge space. Pipe for wastewater treatment can be equipped with a sensor control section environments "water-oil", which allows discharge of oil as it accumulates on the sensor signal.

High degree of purification of wastewater from oil addition is achieved in that the discharge device with pneumotubograme provide in the about from the lower zone of the tray, where the maximum separation of the water and oil due to the fact that the device for discharging the clarified water is placed inside a cylindrical casing, ensuring the supply of water to the drain of the lower zone. In addition, for draining accumulated on top of the oil pipe tray has a drain device pneumonetworks and the sensor control section environments "Oil - water".

This design allows constantly closed valve for draining oil periodically to open the last only by the signal of the sensor, and the sensor is triggered when the pipe tray accumulates a certain amount of oil and boundaries "oil - water" falls below the upper edge of the discharge device, which prevents the ingress of water in the drained oil.

Thus, in the invention of one of the pipes of pan combines the functions of a receiver drains, sand traps and equipment, and the second ensures the reception of oil, pour out without preheating tank steam.

Collection and disposal of vaporous oil in the invention is ensured by the fact that the bottom drain valve of the tank in the process of cleaning the up pipe with fan, and between a fan and a collector placed air cooler, while the upper area of the processing tank using a special cap mounted on the neck to connect steam, water and ventilation, also hermetically reported pipe with cooler and fan.

This ensures the collection, cooling and vapor transfer of petroleum products in liquid state and reset the last treatment facilities.

The use of the invention dramatically reduces the cost of installation of railway tracks by eliminating the need for its installation on a solid concrete base, reduction of capacity and the cost of construction and operation of treatment facilities by ensuring separate collection of oil and wash water, reduce the heat consumption for heating of the tray through the use of process steam, previously ejected through the mouth and the bottom drain valve of the tank into the atmosphere.

In Fig. 1 schematically shows a General view of the device of Fig. 2 - the host of the butterfly valve in the pipe for collecting oil; Fig. 3 - the host of the butterfly valve in the pipe for collection and treatment of wastewater.

Unit contents each position, longitudinal tray for collection of sewage, made of tubes 3, 4 and laid along the railway track outside track below the rail head, the reservoir 5 of the valve 6, 7 at each position, the cooler 8 vaporous emissions, hermetically communicated to the inlet manifold 5 and the upper neck of the processing tank 9 via a rotary pipe 10 and the cover 11 mounted on the neck of the tank and at the outlet from the fan 12. Individual receivers 2 effluent indicated by the inclined line 13 with the reservoir 5 with threaded plugs 14 for connecting the pair if necessary, clean the tube from contamination.

Pipes 3, 4 tray fitted on top of the valve 15 for the supply of steam or compressed air for periodic flushing and removal of sediment. The bottom drain valve 16 water tank 9 is communicated with the rotary pipe 17 mounted on each position of the processing tank, with the upper zone of the collector 5, and the rotary pipe equipped with a spring-loaded telescopic nozzle 18 with clamps for connection with the flange of the bottom drain valve 16 water tank.

Pipe 3, designed to receive drained from the tank without heating residue nefteshlam).

Pipe 4, which is intended for receiving condensate and wash water along with the remnants of petroleum products supplied bolt 21 (Fig. 3) for discharging the clarified water is placed inside a cylindrical casing 22, the shutter 23 to drain oil bolt 24 for removal of sediment and the sensor 25 partition "water - oil". Moreover, the shutter 21 and the cooler 8 is in communication with the reservoir 26 (Fig. 1) for accumulation of clarified water with a pump 27 and the valves 19, 23 communicated with the tank 28 with a pump 29 for the implementation of the oil.

The valves 20, 24 reported by pipeline from the sludge space for accumulation and drying of a solid residue (not shown).

In addition, the pipe 4 at the site of release of effluent can be fitted inside the lower zone special perforated pipe to supply air to the flotation of oil and radiator high-frequency vibrations to speed up the process of flotation and sedimentation of solids (conventionally not shown).

The device operates as follows.

Tanks to be cleaned from the remnants of previously transported petroleum products, installed on a dedicated railway line 1 (Fig. 1), the chief is returned to the tank. Waste oil with high turnover, which can be merged without preheating tank, is drained into the pipe 3 of the tray by opening the bottom drain valve 16 and tank valves at the reservoir 5 when closed, the shutter 7. In the process of draining oil the bolt 20 (Fig. 2) permanently closed, and the shutter 19 is opened and provides a discharge of oil into the reservoir 28.

At the end of the drain on the neck of the tank install the cover 11 for the connection of communications of steam, hot water, ventilation, and switch valves of the manifold 5, closing the shutter 6 and opening the shutter 7.

Thereby is ensured during the subsequent steaming and washing tanks receiving water and residual oil in the pipe 4, preventing the ingress of water into the pipe 3.

Draining viscous residue and thickened petroleum products is carried out with pre-heating of the steam tank.

In the process of steaming and washing tank drain intake provides only the pipe 4. When the slide 6 at the inlet is closed and the shutter 7 is opened, the shutter 21 (Fig. 3) at the outlet is open, the valves 23, 24 are closed.

In this position of the valves in the pipe 4 is maintained at a constant level of effluent at the level of virlanie drains into fractions may be supplemented by air flotation oil and turning on the emitter of the high-frequency oscillations, accelerate the process of flotation and sedimentation of solids, and the presence of a cylindrical casing 22 prevents the oil is drained into the reservoir 26 through the gate 21 of the clarified water.

The clarified water from the tank 26 is fed by a pump 27 to the washing tank, and the excess is discharged into the sewer. Drain accumulated on top of the oil produced by the opening of the shutter 23 to the sensor signal 25 partition "Water - Oil" that is installed below the upper edge of the shutter 23, which prevents the ingress of water into the reservoir 28 for the accumulation of oil.

The thickness and number at a time pour out the oil is set by the difference of level of the upper edges of the gates 21 and 23.

Collection and utilization of vapor of petroleum products during thermal processing tanks are provided with a fan 12, a pair of suction from the upper zone of the collector 5 and the neck of the tank 9 through the pipe 10 with the supply of vapor to the cooler 8 and the discharge of condensate from the cooler to the reservoir 26.

The solid residue from the pipe 4 remove the accumulation of sludge pad by opening the valve 15 when closed, the shutter 7 of the collector 5, closed the shutters 21 and 23 of the UBA are provided with a powerful air flow, created inside the pipe by the pressure of air or steam. The pipe 3 is cleaned in the same way.

1. A device for the disposal of waste during the cleaning of rail tank cars from the remnants of the transported oil products containing track, a supply means for internal processing tanks, including piping water and steam system for the collection and disposal of sewage from a drainage trays, tanks and pumps, wastewater treatment plant from oil and solids, the system of collection, transport and accumulation of sediment with silt Playground, forced ventilation device, characterized in that the tray system of collection and disposal of wastewater is made in the form of two tubes, which are without bias below the rail head out of the rut for processing tanks moreover, at each position of the pipe communicated with one another on top of the manifold with valves, with one of the pipes is provided with a device for the purification of wastewater from oil and solids and reported using paddles on the output tank clarified water tank for collecting oil and sludge space, and the second is supplied at the output of gates and communicated with a reservoir for collecting oil and super silt which each position of the processing tank equipped with individual receiver drains, communicated with the reservoir, and the latter is connected on top with swivel pipe made with the possibility of a tight connection to the bottom drain valve of the tank, and the forced ventilation system is equipped with a cooler vapor emissions, the entrance of which is hermetically communicated through pipelines, tank manhole and reservoir system discharge of wastewater, and the output from the fan.

2. The device under item 1, characterized in that the stopper to drain the clarified water in the pipe for waste water treatment is equipped with top of the cylindrical casing and located above the valve for draining oil, and the sensor control section of the environments below the upper edge of the bolt to drain the oil.

3. The device under item 1, characterized in that the pipe for sewage treatment is supplied in a perforated pipe for compressed air supply and the emitter of the high-frequency oscillations.

4. The device under item 1, characterized in that the individual receivers equipped with drains in the lower zone of the threaded tubes.

 

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