CN206345767U - Greasy filth modifying device - Google Patents

Abstract

The utility model proposes an oil sludge conditioning device, which includes a tank body with a chamber, an oil level adjustment unit that can inject clean water into the lower part of the tank body chamber, and an oil collection unit that can output oil in the tank body chamber, wherein the oil level adjustment The unit includes a water injection pipe communicated with the chamber of the tank body, a first valve body that can adjust the flow of clean water in the water injection pipe, a first sensor that can detect the position of the oil-water interface, and a control unit that can receive the position signal of the first sensor; The oil collection manifold connected to the tank chamber, and the second valve body that can be selected according to the oil level height, the second valve body is set corresponding to the oil outlet, and at least one second valve body can be automatically controlled to open and close The automatic control valve is connected with the control unit, and at least one second valve body is a manual control valve that can be opened and closed manually. The utility model can not only improve the oil recovery efficiency, but also avoid stagnation of the quenching and tempering-centrifugal process.

Description

Oil sludge conditioning device

technical field

The utility model belongs to the technical field of oil pollution treatment, in particular to an oil sludge conditioning device.

Background technique

Oily sludge (referred to as oily sludge) is one of the main pollutants produced during the development, storage and transportation of petrochemical enterprises. If it is not treated in time, it will not only directly pollute the soil and groundwater resources, but also cause huge oil resources. waste. At present, oilfield oil sludge has been included in the hazardous waste list (HW08 hazardous waste), that is, it is included in hazardous waste for management.

The quenching and tempering-centrifugal process is a sludge treatment method that effectively separates oil, water and sludge in sludge. It can not only reduce the cost of sludge treatment, but also realize oil recovery and resource utilization. Among them, the oil sludge conditioning device is an important equipment used in the conditioning-centrifugal process to separate oil, water and sludge and recover oil.

The existing oil sludge conditioning device adopts two methods to complete the oil recovery process: one is to manually adjust the valve body to manually discharge the oil on the upper layer of the layered sludge, which has a low degree of automation , and it is not conducive to maintenance; the other is to use only the method of automatically adjusting the valve body to automatically discharge the oil on the upper layer of stratified sludge. stagnation, thereby affecting the efficiency of the entire process.

Contents of the invention

The utility model aims at the technical problems of low oil recovery efficiency and potential stagnation of the conditioning-centrifugal process in the existing oil sludge conditioning device, and proposes a device that can not only improve the oil recovery efficiency, but also avoid the stagnation of the conditioning-centrifugal process Sludge conditioning device.

In order to achieve the above object, the technical solution adopted by the utility model is:

An oil sludge conditioning device, comprising a tank body with a chamber, an oil level adjustment unit capable of injecting clean water into the lower part of the tank body chamber, and an oil collection unit capable of outputting oil in the tank chamber chamber, wherein the oil level adjustment unit includes a The water injection pipe connected to the body cavity, the first valve body that can adjust the flow of clean water in the water injection pipe, the first sensor that can detect the position of the oil-water interface, and the control unit that can receive the position signal of the first sensor; the oil collection unit is set in the oil level adjustment unit Above, the oil collection unit includes an oil collection manifold connected with the tank chamber, and a second valve body that can adjust the oil flow of the oil collection manifold. The end of the oil collection manifold connected to the tank chamber is the oil outlet, and the oil outlet is There are multiple ones arranged in the vertical direction, and multiple second valve bodies are provided corresponding to the oil outlet. At least one second valve body is an automatic control valve that can automatically control the opening and closing. The automatic control valve is connected with the control unit. At least one The second valve body is a manual control valve that can be opened and closed manually.

Preferably, the oil sludge conditioning device of the present invention also includes a feeding unit capable of feeding the oil sludge into the tank chamber, a stirring unit capable of stirring the oil sludge in the tank chamber, and a heating unit capable of heating the tank chamber.

Preferably, the automatic control valve is the one set corresponding to the uppermost oil outlet.

Preferably, the feeding unit includes an oil inlet pipe communicating with the lower part of the chamber of the tank body, and a third valve body capable of adjusting the sludge flow rate of the oil inlet pipe.

As preferably, the stirring unit includes a rotatable stirring shaft, a stirring member positioned at the bottom of the tank chamber, and a drive unit that can drive the stirring shaft to rotate, the stirring shaft is vertically arranged in the tank chamber, and the stirring member is fixedly arranged on the bottom of the stirring shaft. bottom.

Preferably, the stirring member is a paddle arrayed around the outer peripheral surface of the stirring shaft.

Preferably, the stirring member is a helical belt that surrounds the outer peripheral surface of the stirring shaft and is helically arranged along the axial direction of the stirring shaft.

Preferably, the heating unit includes a heating pipe through which steam can flow, and a fourth valve body capable of adjusting the steam flow in the heating pipe, and the heating pipe is spirally arranged along the inner wall of the chamber of the tank.

Preferably, the bottom of the tank is provided with a discharge unit that can discharge sludge in the tank chamber, the discharge unit includes a discharge manifold communicating with the bottom of the tank chamber, and a fifth valve body that can adjust the flow of sludge in the discharge manifold.

As a preference, the tank chamber is vertically provided with a liquid level switch that is triggered when it contacts the sludge liquid level, and the liquid level switch is a multi-position switch corresponding to the top of the stirring element, the bottom of the stirring element, the top of the heating tube, and the oil outlet at the uppermost end. indivual.

Compared with the prior art, the utility model has the advantages and positive effects that:

1. By setting the automatic control valve and manual control valve, the oil sludge conditioning device of the utility model can realize the recovery of oil in two ways, manual and automatic, that is, when the automatic control components work normally, the automatic control valve can be used Automatically recover the oil reaching the corresponding oil outlet, and in the case of failure of the automatic control components, manually open the manual control valve in sequence from top to bottom to recover the oil reaching the corresponding oil outlet, thereby improving both The recovery efficiency of oil can also avoid stagnation in the quenching and tempering-centrifugation process.

2. The oil sludge conditioning device of the utility model is equipped with a heating unit, an oil collecting unit, an oil level adjusting unit, a stirring unit and a discharging unit, so as to adjust parameters such as water intake, steam temperature and stirring rate according to different components of oil sludge, thereby The three phases of oil, water and solid are effectively separated, and at the same time, the sludge mixture that meets the requirements of the centrifugal separation process is output to the centrifuge, that is, it can adapt to the effective conditioning of sludge with different components, and at the same time, the conditioning result can meet the requirements of centrifugal separation.

Description of drawings

Figure 1 is a schematic diagram of the external structure of the oil sludge conditioning device of the present utility model;

Fig. 2 is a schematic diagram of the internal structure of the oil sludge conditioning device of the present invention.

In the above figures: 1. Tank body; 2. Feeding unit; 3. Oil inlet pipe; 4. The third valve body; 5. Heating unit; 6. Heating pipe; 7. Discharging unit; 8. Oil level adjustment unit 9. Water injection pipe; 10. First sensor; 11. Oil collection unit; 12. Oil collection manifold; 13. Stirring unit; 14. Drive unit; 15. Stirring shaft.

detailed description

Below, the utility model is described in detail through exemplary embodiments. It should be understood, however, that elements, structures and characteristics of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "inner", "outer", "upper" and "lower" is based on the positional relationship shown in Figure 1, and is only for It is convenient to describe the utility model and simplify the description, but not to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

As shown in Figures 1 and 2, a sludge conditioning device includes a tank 1 with a chamber, an oil level adjustment unit 8 that can inject clean water into the lower part of the tank chamber, and an oil collector that can output oil in the tank chamber Unit 11, wherein the oil level adjustment unit 8 includes a water injection pipe 9 communicating with the tank chamber, a first valve body that can adjust the flow of clean water in the water injection pipe 9, a first sensor 10 that can detect the position of the oil-water interface, and a first sensor that can receive the second A control unit for the position signal of the sensor 10 adjusts the height of the oil layer by adjusting the water injection amount of the oil level adjustment unit 8; the oil collection unit 11 is arranged above the oil level adjustment unit 8, and the oil collection unit 11 includes The oil collection manifold 12, and the second valve body that can adjust the oil flow of the oil collection manifold 12, the end that the oil collection manifold 12 is connected with the tank chamber is an oil outlet, and the oil outlet is a plurality of ( 4 as shown in Figure 2), the second valve body is provided with multiple (4 as shown in Figure 2) corresponding to the oil outlet, at least one second valve body is an automatic control valve that can automatically control the opening and closing , the automatic control valve is connected with the control unit, and at least one second valve body is a manual control valve that can be manually controlled to open and close. Wherein, after receiving the position signal detected by the first sensor 10, the control unit opens the automatic control valve when the oil layer is at the oil outlet corresponding to the automatic control valve, so that the oil is discharged from the oil collection manifold 12 and recovered.

The oil sludge conditioning and tempering device of the utility model is equipped with an automatic control valve and a manual control valve, which can realize the recovery of oil in two ways, manual and automatic, that is, when the automatic control components work normally, the automatic control valve can automatically recover the oil. The oil that reaches the corresponding oil outlet, and in the case of failure of the automatic control components, manually open the manual control valve in sequence from top to bottom to recover the oil that reaches the corresponding oil outlet, thereby improving the oil consumption. The recovery efficiency is high, and the phenomenon of stagnation in the quenching and tempering-centrifugation process can be avoided.

Further, the oil sludge conditioning device of the present utility model also includes a feed unit 2 capable of inputting oil sludge into the tank chamber, a stirring unit 13 capable of stirring the oil sludge in the tank chamber, and a heating unit 5 capable of heating the tank chamber. Through the stirring unit 13, the heating unit 5 and the oil level regulating unit 8, the three phases of oil, water and solid in the sludge are effectively separated.

Preferably, the automatic control valve is the one set corresponding to the uppermost oil outlet, thereby reducing the cost.

In addition, the first sensor 10 may be an interface meter.

Regarding the structure of the feed unit 2, specifically: as shown in FIG. 1 , the feed unit 2 includes an oil inlet pipe 3 communicating with the lower part of the tank chamber, and a third valve body 4 that can adjust the sludge flow of the oil inlet pipe 3 .

For the structure of the above-mentioned stirring unit 13, specifically: as shown in Figure 1 and Figure 2, the stirring unit 13 includes a rotatable stirring shaft 15, a stirring member positioned at the bottom of the tank chamber, and a drive that can drive the stirring shaft 15 to rotate In the unit 14, the stirring shaft 15 is vertically arranged in the chamber of the tank body, and the stirring member is fixedly arranged at the bottom of the stirring shaft.

Preferably, the stirring member may be paddles arrayed around the outer peripheral surface of the stirring shaft 15 .

In addition, the stirring element can also be a helical belt that surrounds the outer peripheral surface of the stirring shaft 15 and is helically arranged along the axial direction of the stirring shaft 15 .

In addition, the driving unit 14 can be one of a servo motor, a stepping motor or a hydraulic motor.

Further, the stirring unit 13 also includes a baffle that can accelerate the movement of the sludge, and is vertically arranged in the chamber of the tank.

Regarding the structure of the above-mentioned heating unit 5, specifically: as shown in Figure 1 and Figure 2, the heating unit 5 includes a heating pipe 6 through which steam can flow, and a fourth valve body that can adjust the steam flow rate in the heating pipe 6, and the heating pipe 6 It is arranged spirally along the inner wall of the tank chamber.

Further, the heating unit 5 also includes a second sensor that can detect the temperature of the sludge in the tank body 1, and a temperature transmitter connected to the second sensor, so that the fourth valve body can be adjusted according to the temperature output by the second sensor, thereby maintaining The temperature of the oil sludge in the tank body 1 is constant.

In addition, the bottom of the tank body 1 is provided with a discharge unit 7 that can discharge the sludge in the tank chamber. The discharge unit 7 includes a discharge manifold that communicates with the bottom of the tank chamber, and a fifth valve that can adjust the flow rate of the sludge in the discharge manifold. body.

It should be noted that in the oil sludge conditioning process, the oil sludge conditioning device used should be based on the characteristics of oilfields and refineries with extensive sources and complex components, and carry out conditioning treatment on the sludge so that the sludge can enter the next step of centrifugal separation. Process requirements (such as excessive oil content, and factors such as temperature exceeding a certain range will affect the normal operation of the centrifuge).

Therefore, the oil sludge conditioning device of the utility model is provided with a heating unit 5, an oil collection unit 11, an oil level adjustment unit 8, a stirring unit 13 and a discharge unit 7, so as to adjust the water intake, steam temperature and stirring according to different components of oil sludge. Speed and other parameters, so that oil, water, and solid three-phase can be effectively separated. At the same time, the oil sludge mixture that meets the requirements of the centrifugal separation process is output to the centrifuge, that is, it can adapt to the effective conditioning of sludge with different components. At the same time, the conditioning result can meet requirements for centrifugation.

Further, the discharge unit 7 also includes a backwash valve arranged at the end of the discharge manifold to output sludge, so as to avoid the occurrence of blockage of the discharge manifold.

Further, the tank chamber is vertically provided with a liquid level switch that is triggered when it touches the sludge liquid level, and the liquid level switches are respectively corresponding to the top of the agitator, the bottom of the agitator, the top of the heating tube 6, and the uppermost oil outlet. indivual. The function of setting the liquid level switch in the utility model is that it can make the process of stirring, heating and recycling proceed in an orderly manner in the oil sludge conditioning process, thereby improving the automation level of the oil sludge conditioning process, and further improving the efficiency of the oil sludge conditioning process. work efficiency.

Preferably, the liquid level switch may be one of a float type liquid level switch or an electronic liquid level switch.

In order to better understand the technical solution of the utility model, as shown in Figure 1 and Figure 2, the process of applying the sludge conditioning device of the utility model to the sludge conditioning is as follows:

After the oily sludge is pretreated to remove large particles, it is injected into the tempering equipment. When the oily sludge reaches the top of the stirring piece, the stirring unit 13 is started. When the oily sludge reaches the uppermost oil outlet, stop injecting the oily sludge into the tank cavity;

While filling oily sludge into the tank chamber, add demulsifier and PH regulator into the oil inlet pipe, adjust the stirring time of the agitator according to the characteristics of different types of oily sludge, and stop stirring after the stirring is uniform. The temperature transmitter maintains a certain temperature, so that the oil is separated from the oily sludge, and it is left to settle, so as to realize the three-phase separation of oil, water and solid;

Inject clean water at a certain temperature into the tank chamber through the water injection pipe 9, so that the oil level reaches the corresponding oil outlet (as shown in Figure 1, there are 4 oil discharge pipes and sinks at different heights. The control of the height of the oil-water separation surface), the oil is discharged out of the oily sludge conditioning device, so that the oil content of the oily sludge reaches the standard that the centrifuge can handle;

After the oil discharge process is over, start the stirring unit 13 again to mix the remaining oily sludge evenly and send it to the subsequent centrifuge. During this process, the temperature of the oily sludge should be kept stable. When the liquid level of the oily sludge Stop feeding steam when it is lower than the top of heating pipe 6, and stop stirring when the oily sludge is lower than the lower end of the stirring member, and stop discharging the oily sludge after a certain lag time.

Claims (10)

1. a kind of greasy filth modifying device, it is characterised in that：Including the tank body (1) with chamber, it can be injected to tank body chamber lower portion The oil level adjustment unit (8) of clear water, and exportable tank body chamber indoor oil the oily unit (11) of receipts, wherein, oil level adjustment unit (8) include the water injection pipe (9) with tank body chamber, can adjust first valve body of water injection pipe (9) interior clear water flow, can detect oil The first sensor (10) of water termination position, and the control unit of first sensor (10) position signalling can be received；Receive oil single First (11) are arranged at the top of oil level adjustment unit (8), and receiving oily unit (11) includes converging with the collection tube of tank body chamber (12), and adjustable collection tube converges the second valve body of (12) oily flow, collection tube converges one end that (12) are connected with tank body chamber For oil-out, oil-out is vertically set multiple, the second valve body be provided with corresponding to oil-out it is multiple, at least one Second valve body is can automatically control the autocontrol valve of folding, and autocontrol valve is connected with control unit, at least one second valve Body is the hand control valve of manually controllable folding.

2. greasy filth modifying device according to claim 1, it is characterised in that：Also include that greasy filth can be inputted to tank body chamber Feed unit (2), can in agitator tank fluid chamber greasy filth agitating unit (13), and can heating tank fluid chamber heating unit (5)。

3. greasy filth modifying device according to claim 1 or 2, it is characterised in that：Autocontrol valve is corresponding to topmost One of oil-out setting.

4. greasy filth modifying device according to claim 2, it is characterised in that：Feed unit (2) include with tank body chamber The oil inlet pipe (3) that portion is connected, and adjustable oil inlet pipe (3) greasy filth flow the 3rd valve body (4).

5. greasy filth modifying device according to claim 4, it is characterised in that：Agitating unit (13) includes rotatable stirring Axle (15), the stirring parts positioned at the bottom of tank body chamber, and the driver element (14) that agitating shaft (15) can be driven to rotate, stirring Axle (15) is vertically arranged in tank body chamber, and stirring parts are fixedly installed on the bottom of agitating shaft.

6. greasy filth modifying device according to claim 5, it is characterised in that：Stirring parts are around agitating shaft (15) excircle The blade of surface perimeter array.

7. greasy filth modifying device according to claim 5, it is characterised in that：Stirring parts are around agitating shaft (15) excircle Surface and the hurricane band set along agitating shaft (15) axial screw.

8. greasy filth modifying device according to claim 5, it is characterised in that：Heating unit (5) includes that adding for steam can be led to Heat pipe (6), and adjustable heating tube (6) interior steam flow the 4th valve body, heating tube (6) sets along tank body chamber inner wall spiral Put.

9. greasy filth modifying device according to claim 2, it is characterised in that：The bottom of tank body (1) is provided with can drain tank The discharging unit (7) of greasy filth in fluid chamber, discharging unit (7) includes the discharging manifold connected with tank body cavity bottom, can adjust 5th valve body of discharging manifold greasy filth flow.

10. the greasy filth modifying device according to claim 1,2,4,5,6,7,8 or 9, it is characterised in that：Tank body chamber edge is perpendicular Nogata is to the liquid-level switch triggered when being provided with contact greasy filth liquid level, and liquid-level switch is corresponds respectively at the top of stirring parts, stirring It is multiple that part bottom, heating tube (6) top and the top oil-out are set.