CN205616761U - Contain and gather sewage sludge degree of depth dehydration device - Google Patents

Abstract

The utility model relates to a deep dehydration treatment device for oily sludge containing accumulated sewage. The conditioning device for oily sludge containing accumulated sewage is the core, combined with other equipment to complete the deep dehydration of oily sludge containing aggregated sewage, and is used for deep dehydration of oily sludge containing accumulated sewage. The oil sludge containing poly-sludge that is transported to meet the standard treatment is deeply dehydrated, and part of the crude oil and supernatant are recovered to reduce their water content, thereby reducing the volume. The deep dehydration treatment device for sludge containing sludge of the utility model includes a buffer device, a dosing device, a conditioning device for sludge containing sludge, a flocculation device and a dehydration device. The volume of oil sludge containing poly-sludge is reduced, and part of the crude oil and supernatant are collected to achieve the purpose of energy saving and environmental protection.

Description

A deep dehydration treatment device for sludge containing accumulated sludge

technical field

The utility model relates to a deep dehydration treatment device for oily sludge containing accumulated sewage, which belongs to the technical field of oilfield oily sewage treatment.

Background technique

At present, polymer flooding is widely used. However, with the continuous expansion of the application scale of polymer flooding, more and more sludges containing polymers are produced. Generally, the sludge with polymers has a water content of about 90%. Contains a large amount of polymers and other treatment chemicals, which are hazardous substances and need to be transported outside for standard treatment. At present, the oil pollution produced in the oil field has the problem of being directly transported outside for treatment, and the transportation and treatment costs are high. If it is possible to quickly reduce the volume of sludge containing accumulated sludge, and recover the crude oil in the oil, and recover the clear water in the oil, it will be possible to reduce the cost of foreign transportation treatment, increase the output of crude oil, and achieve quite realistic economic and environmental benefits.

Utility model content

technical problem to be solved

In order to solve the above-mentioned problems, the utility model is used to treat the oily sludge containing poly-accumulation before it is transported to meet the standard. The technical problem of not being able to recover crude oil. The water content of the accumulated sludge treated by the utility model is significantly reduced, and part of the crude oil can be recovered, which reduces the volume of the processed sludge containing accumulated sludge, effectively reduces transportation costs and processing costs, and improves the crude oil at the same time. Utilization.

Technical solutions

A deep dehydration treatment device for sludge containing sludge, comprising a buffer device, a conditioning device for sludge containing sludge, a flocculation device and a dehydration device connected in sequence and communicated with each other, the conditioning device and flocculation device for sludge containing sludge are respectively connected to the The dosing pipes of the medicine device are connected and communicated, and it is characterized in that, the described conditioning device containing accumulated sludge is a conditioning device containing accumulated sludge, including a box body and supporting legs for supporting the box body, and the box body is divided into The mud discharge area in the lower part and the tempering area in the upper part; the bottom of the mud discharge area is in the shape of a cone; The oil pipe interface and the oil collecting device; the heights of the oil collecting pipe interface, the water outlet pipe interface and the mixing inlet are arranged in order from high to low.

Further, the tempering zone is provided with several sloping plates inclined in the same direction.

Further, the tank is provided with a feed mixer, and the feed mixer communicates with the tank through the slurry mixing inlet; the feed mixer is provided with a slurry inlet pipe, and the slurry inlet pipe is twisted. Dragon component. The slurry inlet pipe is an auger assembly.

Further, the liquid level of the mixing slurry inlet is lower than the liquid level at the lowest point of the sloping plate, the liquid level of the outlet pipe interface is higher than the liquid level at the highest liquid level of the sloping plate, and the quenching and tempering zone is provided with an overflow pipe interface, The liquid level of the overflow pipe interface is higher than that of the oil collection pipe interface.

Further, the mud discharge area is provided with a backwash water inlet, and the backwash water inlet is arranged at the lower part of the mud discharge area.

Further, a movable platform is provided on the outer wall of the box, and the movable platform has two states of retracting and expanding.

Further, the mud discharge area is provided with a backwash water inlet, and the backwash water inlet is arranged at the lower part of the mud discharge area.

Further, switches are provided on the slurry mixing inlet, the water outlet pipe interface, the oil collection pipe interface, the mud discharge port and the backwash water inlet.

Further, the oil collecting device is an oil scraper; the dehydrating device is a ring disc dehydrator.

Further, lift pumps are respectively provided between the buffer device, the conditioning device containing sludge containing sludge, the flocculation device, and the dehydration device, and the buffer device, the conditioning device containing sludge containing sludge, the flocculation device, the dehydration device and the lift pump Valves and flowmeters are respectively arranged on the communication pipes between them.

Further, the buffer device, the conditioning device containing sludge containing sludge, the flocculation device, and the dehydration device are arranged in order according to the liquid level from high to low, and the buffer device, the conditioning device containing sludge containing sludge, the flocculation device, and the dehydration device Valves and flowmeters are respectively arranged on the communicating pipes between them.

Beneficial effect

The utility model can quickly realize conditioning and modification of sludge containing accumulated sludge, complete sludge concentration treatment, realize reduction of sludge containing accumulated sludge before dehydration, and simultaneously recover a small amount of crude oil and clear water.

The buffer device buffers the sludge containing sludge to prevent large flow fluctuations and fluctuations in the specific gravity of the incoming liquid in a short period of time, so that the flow rate of sludge containing sludge entering the next process remains unchanged as much as possible or fluctuates within a certain reasonable range. The conditioning and conditioning device for sludge containing sludge completes the conditioning and modification of sludge containing sludge. During this step, part of the crude oil and supernatant can be recovered to reduce the volume of sludge containing sludge. The flocculation device flocculates the incoming liquid. In this step, part of the clean water is discharged to further reduce the volume of the sludge containing accumulated sludge. The dehydration device dehydrates the incoming liquid to further reduce the water content of the accumulated sludge. The dosing pipes of the dosing device are respectively connected to the conditioning device containing sludge containing sludge and the flocculation device, and appropriate chemicals are respectively added to the conditioning device containing sludge containing sludge and the flocculation device.

The buffer device, the conditioning device containing sludge containing sludge, the flocculation device and the dehydration device are connected in sequence. Lifting pumps are installed in each room, and through the action of the lifting pump, the sludge containing accumulated sludge enters the buffer device, sludge conditioning device, flocculation device, and dehydration device for corresponding treatment. The valves and flowmeters respectively set at the joints of the buffer device, sludge containing sludge conditioning device, flocculation device, dehydration device and lift pump are used to control whether sludge containing sludge enters the buffer device, sludge containing sludge, etc. Sludge conditioning device, flocculation device, dehydration device and the flow rate and speed when entering.

When the site permits, the buffer device, the sludge containing sludge conditioning device, the flocculation device, and the dehydration device are arranged in order according to the liquid level from high to low. After the sludge containing sludge is processed in each part, it can Enter the next step for processing. Valves and flowmeters are respectively installed on the communication pipes between the buffer device, sludge containing sludge conditioning device, flocculation device, and dehydration device to control whether the sludge containing sludge enters the Buffer device, conditioning device containing sludge containing sludge, flocculation device, dehydration device, and the flow and speed at the time of entry.

The conditioning device for oily sludge containing poly-sludge of the utility model adopts the conditioning device for oil-sludge containing poly-sludge, which is used to realize the conditioning and modification of oily sludge containing poly-sludge, and recover part of crude oil and supernatant, which not only increases the output of crude oil, but also Part of the supernatant can be recycled, energy saving and environmental protection.

The function of the feed mixer installed on the tank of the sludge-containing sludge conditioning device is to realize the mixing of the demulsifier and the sludge-containing sludge. The feed mixer communicates with the tank through the slurry mixing inlet. There is a feeding pipe, and the feeding pipe is an auger assembly. When in use, the sludge containing poly-sludge and the demulsifier enter the feed mixer together from the slurry inlet pipe without stirring and mixing. There will be a relatively high pressure when feeding into the mixer, so that the mixture of the demulsifier and sludge containing sludge entering the front and back will impact each other, so that the demulsifier and sludge containing sludge will be fully mixed. The setting of the feed mixer makes it unnecessary to mix the sludge containing accumulated sludge and the demulsifier before entering the utility model, which reduces the process. At the same time, there is no need to install a stirring device in the feed mixer, and no conventional stirring motor is used. , saving power.

The box body of the sludge-containing sludge conditioning device is divided into two parts, the conditioning zone on the upper part and the sludge discharge zone on the lower part. After the mud discharge area is filled, the mixture will reach the upper conditioning area and gradually fill the conditioning area. At the same time, under the action of the demulsifier, the sludge containing the accumulated sludge will separate the oil, water and mud, the oil will float upward, the mud will sink downward, and the water will be in the middle layer.

A number of inclined plates inclined in the same direction in the conditioning area of the conditioning device containing accumulated sludge will accelerate the accumulation and floating of oil molecules and block the upward movement of the mud, so that the oil floats on the upper part of the conditioning area and the sludge In the mud discharge area, between the mud and the oil is water whose mud content decreases with the increase of the liquid level.

In the conditioning area on the upper part of the conditioning device containing accumulated sludge, set the oil collection pipe interface, water outlet pipe interface, and slurry inlet according to the liquid level from high to low. The oil collection pipe interface corresponds to the oil layer and is used to discharge part of the recovered crude oil; The water pipe interface corresponds to the water layer with less mud content, that is, the supernatant; this design will greatly reduce the mud content of the recovered crude oil, and the recovered water can be reused due to its low mud content.

Since the liquid level of the mixing inlet of the conditioning device containing the accumulated sludge is lower than the liquid level at the lowest point of the sloping plate, the sludge containing the aggregated sludge mixed with the demulsifier will not directly contact the inclined plate when it enters the box. When the amount of sludge containing accumulated sludge in the box reaches a certain level, it will come into contact with the inclined plate. At this time, the oil, water and mud have been separated. Under the resistance of the inclined plate, the mud will not go up to the highest point of the inclined plate. The liquid level at the outlet pipe interface is higher than the liquid level at the highest liquid level of the inclined plate, corresponding to the supernatant at a liquid level higher than that of the inclined plate, and the supernatant can be recycled after being discharged from the outlet pipe interface.

The oil collecting device of the conditioning device containing accumulated sludge is an oil scraper, and the oil scraper runs back and forth on the oil layer in the upper part of the conditioning area, and gathers the oil layer to the oil collection pipe interface to facilitate the recovery of crude oil.

In order to prevent flooding of the conditioning device containing sludge containing sludge, an overflow pipe connection is specially provided. The liquid level of the overflow pipe connection is higher than that of the oil collection pipe connection. The oil and water in the tank can flow out of the tank through the overflow pipe interface, so that the maximum liquid level of the mixture in the tank does not exceed the highest liquid level of the overflow pipe interface.

After the conditioning device containing accumulated sludge of the utility model is used for a period of time, some mud will accumulate in the box, and the lower part of the mud discharge area of the box is provided with a backwash water inlet, and the clean water used to clean the box enters from the backwash inlet. After the tank, slowly fill the tank from bottom to top, and then discharge through the mud discharge port, so as to realize the cleaning of the tank.

The movable platform provided on the outer wall of the box body of the conditioning device containing accumulated sludge has two states of being stretched and then retracted. When it is opened, it can be used as an activity platform for the staff. For the convenience of transportation and storage, the activity platform can be put away.

The switches set on the mixing slurry inlet, water outlet pipe interface, oil collection pipe interface, mud discharge port and backwash water inlet of the conditioning device containing accumulated sludge can control the mixing slurry inlet, water outlet pipe interface, oil collection pipe interface, and sludge discharge respectively. The mouth and backwash inlet are left open and closed as required.

The conditioning device for sludge containing sludge of the utility model uses a conditioning device for sludge containing sludge, which has a simple structure and saves energy. energy, and part of crude oil and water can also be recovered. The volume and water content of the accumulated sludge after being treated by the product of the utility model are greatly reduced.

The buffer device, conditioning device, flocculation device and dehydration device of the deep dehydration treatment device for sludge containing accumulated sludge of the utility model are connected in sequence, and cooperate with the dosing device. The volume reduction of oil sludge can be operated online.

Description of drawings

Fig. 1 is a structural representation of the utility model

Fig. 2 is the front view of 4 in Fig. 1

Fig. 3 is the right side view of 4 in Fig. 1

Figure 4 is the left view of 4 in Figure 1

Fig. 5 is a sectional view of plane A-A of 4 in Fig. 1

Figure 6 is a top view of 4 in Figure 1

legend

3-buffer device; 4-conditioning device containing accumulated sludge; 5-flocculation device; 6-dehydration device; 7-dosing device; 8-lift pump; 1-cabinet; Area; 111-sludge outlet; 112-backwash water inlet; 12-tempering area; 121-mixing slurry inlet; 122-outlet pipe interface; 123-oil collection pipe interface; 124-oil collecting device; ; 125-sloping plate; 126-overflow pipe interface; 13-feed mixer; 131-slurry feed pipe; 14-movable platform;

detailed description

The advanced dehydration treatment device for sludge containing sludge as shown in Figure 1-3 includes a buffer device, a conditioning device for sludge containing sludge, a flocculation device, and a dehydration device that are sequentially connected and communicated. The device and the flocculation device are respectively connected and communicated with the dosing pipe of the dosing device. The conditioning device containing sludge containing sludge is selected from the conditioning device containing sludge containing sludge, and the dehydration device is selected from a ring disc dehydrator.

Pipelines are arranged between the buffer device, the conditioning device containing sludge containing sludge, the flocculation device, and the ring disc dehydrator to make the buffer device and the conditioning device containing sludge containing sludge, the conditioning device containing sludge The quality device and the flocculation device, the flocculation device and the ring disc dehydrator are respectively connected, and between the buffer device and the conditioning device containing sludge containing sludge, between the conditioning device containing sludge containing sludge and flocculation device, and between the flocculation device and Lifting pumps are installed between the ring disc dehydrators, and valves and flow meters are respectively set at the connection points of the buffer tank, the conditioning device containing accumulated sludge, and the ring disc dehydrators and the lifting pumps.

The dosing device has two dosing pipes, which are respectively connected to the conditioning device containing sludge containing sludge and the flocculation device.

When working, the sludge containing sludge enters the buffer device, and then enters the sludge conditioning device containing sludge through the lift pump, and then enters the flocculation device under the action of the lift pump, and then enters the flocculation device under the action of the lift pump. Enter the ring disc dehydrator, and finally, the sludge containing the accumulated sludge that has been processed in all processes is transported out for standard treatment.

The accumulative sludge containing sludge conditioning device in this embodiment includes a box 1 and four legs 2 for supporting the box. The box 1 is divided into a lower sludge discharge area 11 and an upper one. Conditioning and tempering zone 12, the conditioning and tempering zone 12 at the top is cuboid, and the mud discharge zone 11 at the bottom is cone-shaped; Mixing slurry inlet 121, water outlet pipe interface 122, oil collecting pipe interface 123 and oil scraper 1241; the heights of the oil collecting pipe interface 123, water outlet pipe interface 122, and mixing slurry inlet 121 are arranged in order from high to low. The mud mixing inlet 121, the outlet pipe interface 122, the oil collection pipe interface 123, the mud discharge port 111 and the backwash water inlet 112 are provided with switches. There are several sloping plates 125 inclined to the left in the quenching and tempering area. The liquid level of the mixing slurry inlet 121 is lower than the liquid level at the lowest point of the sloping plate 125, and the liquid level of the outlet pipe interface 122 is higher than the highest liquid level of the sloping plate 125. The liquid level is high. The position of the oil scraper 1241 is directly above the slant plate 125 and roughly at the same height as the oil outlet pipe interface 122 . The tank 1 is provided with a feed mixer 13, which communicates with the tank 1 through a slurry mixing inlet 121. The feed mixer 13 is provided with a slurry feed pipe 131, which is an auger assembly. The mud discharge area 11 is provided with a backwash water inlet 112 , and the backwash water inlet 112 is arranged at the lower part of the mud discharge area 11 . A movable platform 14 is arranged on the outer wall of the box body 1, and the movable platform 14 has two states of retracting and expanding.

In the conditioning device containing accumulated sludge in this embodiment, when working, confirm that the switch of the backwash inlet and the sludge discharge port is in the closed state, the switch of the mud mixing inlet is in the open state, and the oil discharge pipe interface and the discharge port are in the open state. The switch of the water pipe interface is closed. Add a demulsifier to the polymer-containing sludge produced by polymer flooding, and use a pump to pump the polymer-containing sludge with the demulsifier into the feed mixer through the slurry inlet pipe, and the two are realized by the impact between the slurries Mixing, when the height of the slurry in the feed mixer exceeds the lowest point of the mixing inlet, the slurry enters the mud discharge area of the box through the mixing inlet, and gradually accumulates upwards with the increase of the amount of entry, after a period of time , after the slurry height in the box reaches the height of the oil discharge pipe interface, the switches of the oil discharge pipe interface and the water outlet pipe interface are turned on. At this time, the rotating operation of the oil scraper will make the oil accumulate from the oil discharge pipe interface and discharge The supernatant liquid is discharged from the outlet pipe interface to the preset water collection device.

When it is necessary to clean the sludge conditioning device containing accumulated sludge in this embodiment, the switch of the sludge discharge pipe interface is in the closed state, the switch of the oil collection pipe interface and the drain pipe interface is in the closed state, and the switch of the mixing slurry inlet is in the closed state. In the open state, the switch of the backwash water inlet is in the open state, inject clean water from the backwash water inlet until water overflows from the overflow pipe interface, close the switch of the backwash water inlet, and open the switch of the mud discharge port. The switch and corresponding pipeline valves are backwashed with water pumped by a lift pump. Cycle the above operations several times to clean the box, prevent the box from collecting mud, and prevent the mud discharge port from being blocked.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made, these improvements and Retouching should also be regarded as the scope of protection of the present utility model.

Claims (10)

1. one kind contains poly-oil sludge deep dehydration processing means, including the buffer unit (3) being sequentially connected with and communicating, containing poly-oil sludge modifying device (4), flocculation plant (5) and dehydration device (6), described containing poly-oil sludge modifying device and flocculation plant respectively chemical feed pipe with chemicals dosing plant (7) be connected, communicate, it is characterized in that, the described supporting leg (2) including casing (1) and supporting box containing poly-oil sludge modifying device (4), described casing is divided into the sludge discharging area (11) of bottom and the quenched district (12) on top；In cone bucket shape shape bottom described sludge discharging area；Bottom, described sludge discharging area arranges mud discharging mouth (111), and described quenched district is provided with slurry import (121), outlet pipe interface (122), collection tube interface (123) and oil collector sump tank (124)；Described collection tube interface (123), outlet pipe interface (122), slurry import (121) height successively from high toward low setting.

One the most according to claim 1 contains poly-oil sludge deep dehydration processing means, it is characterised in that described quenched district is provided with the swash plate (125) of some equidirectional inclinations.

One the most according to claim 1 and 2 contains poly-oil sludge deep dehydration processing means, it is characterized in that, being provided with entry mixers (13) on described casing (1), described entry mixers (13) is communicated by slurry import (121) with casing (1)；Pulp-inlet pipe (131) it is provided with in described entry mixers (13)；Described pulp-inlet pipe (131) is auger assembly.

One the most according to claim 2 contains poly-oil sludge deep dehydration processing means, it is characterized in that, the liquid level of described slurry import (121) is lower than swash plate (125) liquid level lowest part liquid level, outlet pipe interface (122) liquid level is higher than liquid level at swash plate (125) high level, described quenched district is provided with overflow pipe interface (126), and the liquid level of described overflow pipe interface (126) is higher than collection tube interface (123).

One the most according to claim 1 and 2 contains poly-oil sludge deep dehydration processing means, it is characterised in that described sludge discharging area is provided with backwash water inlet (112), and described backwash water inlet (112) is arranged on bottom, sludge discharging area.

One the most according to claim 5 contains poly-oil sludge deep dehydration processing means, it is characterised in that being provided with traverser (14) on described cabinet exterior, described traverser has packs up and struts two states.

One the most according to claim 1 contains poly-oil sludge deep dehydration processing means, it is characterized in that, described slurry import (121), outlet pipe interface (122), collection tube interface (123), mud discharging mouth (111) and backwash water inlet (112) are provided with switch.

One the most according to claim 1 contains poly-oil sludge deep dehydration processing means, it is characterised in that described oil collector sump tank (124) is oil wiper (1241), and described dehydration device (6) is ring dish-style dewaterer.

One the most according to claim 8 contains poly-oil sludge deep dehydration processing means, it is characterized in that, described buffer unit (3), containing being respectively equipped with elevator pump (8) between poly-oil sludge modifying device (4), flocculation plant (5), dehydration device (6), described buffer unit (3), be respectively arranged with valve and effusion meter containing on poly-oil sludge modifying device (4), flocculation plant (5), connecting pipe between dehydration device (6) and elevator pump (8).

A kind of containing poly-oil sludge deep dehydration processing means, it is characterized in that, described buffer unit (3), set gradually from high to low according to liquid level containing poly-oil sludge modifying device (4), flocculation plant (5), dehydration device (6), described buffer unit (3), be respectively arranged with valve and effusion meter containing on the connecting pipe between poly-oil sludge modifying device (4), flocculation plant (5), dehydration device (6).