CN118031228A

CN118031228A - Fatlute processing apparatus

Info

Publication number: CN118031228A
Application number: CN202410294354.5A
Authority: CN
Inventors: 茹宇; 鲁佳月; 赵宇; 韩立鹏; 马海员; 鲍轶凡; 张塽
Original assignee: Beijing Huaneng Changjiang Environmental Protection Technology Research Institute Co Ltd; Huaneng Yantai Bajiao Thermoelectricity Co Ltd
Current assignee: Beijing Huaneng Changjiang Environmental Protection Technology Research Institute Co Ltd; Huaneng Yantai Bajiao Thermoelectricity Co Ltd
Priority date: 2024-03-14
Filing date: 2024-03-14
Publication date: 2024-05-14

Abstract

The invention provides an oil sludge treatment device, which comprises a furnace body, an electric heating net, an air distribution coil pipe, a microwave radiator and a stable combustion framework, wherein the furnace body is provided with a cavity for treating oil sludge, and a feed inlet, an exhaust pipe and an ash discharge pipe which are communicated with the cavity; the electric heating net is fixedly connected to the lower part of the inner wall of the furnace body; the air distribution coil pipe is connected to the inner wall of the furnace body and positioned below the electric heating net, and is connected with the fan through the air inlet pipe; the microwave radiator is arranged at the top of the cavity; the combustion stabilizing framework is fixedly connected in the cavity and is positioned above the electric heating net. The invention can ensure that the oil sludge is completely combusted in the enclosed space, does not need to pretreat the oil sludge, and has simple operation. Through setting up steady burning skeleton for the fatlute burns fast and even, and microwave radiator releases the microwave to fatlute and steady burning skeleton and is absorbed by it, makes the furnace body keep certain temperature level in the unstable time of burning, thereby ensures that the treatment effect is reliable, can reduce energy consumption, reduce cost, and treatment efficiency is high.

Description

Fatlute processing apparatus

Technical Field

The invention relates to the technical field of oil sludge treatment, in particular to an oil sludge treatment device.

Background

Various oily solid hazardous wastes produced in the production process of oil fields and refining enterprises are called oily sludge. The oil content cannot be directly recovered, and is one of main pollutants in petrochemical industry.

The oily sludge can emit malodor and has a large number of pathogenic bacteria, is in a stable suspended emulsified state, contains various chemical substances and heavy metal substances, belongs to dangerous wastes, and is classified as HW08 type dangerous wastes in the national dangerous waste list. Sludge treatment has become a difficult development problem in the petroleum industry. Traditional landfill has become a limiting technology, and a novel environment-friendly treatment technology is urgently developed. The current technology is ultrasonic oil sludge cleaning technology and demulsification tempering technology.

The main principle of the ultrasonic oil sludge cleaning technology is that ultrasonic vibration is utilized to cause oil sludge molecules to vibrate, so that various components of the oil sludge are separated. The main advantages are environmental protection and high efficiency, but the energy consumption for generating ultrasonic waves is overlarge, and the cost is a main factor for limiting development.

The demulsification and tempering are the principle that an artificial demulsifier is added into the oil sludge for stirring reaction, then three phases of oil, water and sludge are centrifugally separated, the separated oil is recycled, and the water is reused for treating the oil-containing sludge. In view of the strict requirements on landfill of wastes at present, the method can only be used as a pretreatment method of the oily sludge, a subsequent advanced treatment method is needed to be assisted, and the demulsifier is used as a consumed medicament, so that the dosage is large and the cost is high.

Based on the two technologies, the technology has certain defects, so that a novel sludge treatment device needs to be developed.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the embodiment of the invention provides the sludge treatment device which can reduce energy consumption, reduce cost and has high treatment efficiency.

The embodiment of the invention provides an oil sludge treatment device, which comprises: the device comprises a furnace body, an electric heating network, an air distribution coil, a microwave radiator and a stable combustion framework, wherein the furnace body is provided with a cavity for treating oil sludge, a feed inlet communicated with the cavity, an exhaust pipe and an ash discharge pipe; the electric heating net is fixedly connected to the lower part of the inner wall of the furnace body so as to heat the oil sludge in the cavity; the air distribution coil pipe is connected to the inner wall of the furnace body and is positioned below the electric heating net, a plurality of air outlets are uniformly distributed on the upper part of the air distribution coil pipe, the air distribution coil pipe is connected with the fan through the air inlet pipe, and the fan is arranged outside the furnace body; the microwave radiator is arranged at the top of the cavity; the combustion stabilizing framework is fixedly connected in the cavity and is positioned above the electric heating net.

In some embodiments, a supporting plate for supporting the oil sludge is connected in the cavity, the supporting plate is arranged below the air distribution coil pipe, the supporting plate is provided with an automatic opening and closing structure, and when the supporting plate is opened, the processed ash falls into the ash discharging pipe.

In some embodiments, the stable combustion framework comprises a plurality of transverse frames and a plurality of vertical frames, wherein the transverse frames are arranged in the vertical direction, the transverse frames are parallel to each other, the vertical frames are arranged in the horizontal direction, and the vertical frames are fixedly connected with the transverse frames to form a grid structure.

In some embodiments, the flame stabilizing skeleton is made of silicon carbide.

In some embodiments, the air distribution coil pipe comprises an outer ring pipe, an intermediate ring pipe and an inner ring pipe, wherein the outer ring pipe is fixedly connected to the inner wall of the cavity, the outer ring pipe is fixedly connected with the air inlet pipe and communicated with the air inlet pipe, the intermediate ring pipe is connected to the inner part of the outer ring pipe through a plurality of first connecting pipes, the inner ring pipe is connected to the inner part of the intermediate ring pipe through a plurality of second connecting pipes, and the outer ring pipe, the intermediate ring pipe, the inner ring pipe, the first connecting pipes and the second connecting pipes are communicated with each other, and the outer ring pipe, the intermediate ring pipe and the inner ring pipe are concentrically arranged.

In some embodiments, the transverse frames are crisscrossed frame bodies.

In some embodiments, the upper part of the furnace body is a detachable upper cover, the microwave radiator and the feed inlet are both arranged at the upper cover, and the exhaust pipe is connected with the upper cover.

In some embodiments, the flame stabilizing framework is connected with a hanging ring.

In some embodiments, the exhaust pipe is connected to an exhaust gas treatment device.

In some embodiments, a circulation pipeline is connected between the exhaust pipe and the air inlet pipe, one end of the circulation pipeline is connected to a downstream position of the tail gas treatment device, and the other end of the circulation pipeline is connected to an upstream position of the fan.

Drawings

The foregoing and/or additional aspects and advantages of the present invention will become apparent and may be better understood from the following description of embodiments with reference to the accompanying drawings,

Wherein:

FIG. 1 is a schematic diagram of a sludge treatment device in an embodiment of the present invention;

FIG. 2 is a top view of the air distribution coil of FIG. 1;

Reference numerals:

1-a tail gas treatment device; 2-an exhaust pipe; 3-a microwave radiator; 4-upper cover; 5-hanging rings; 6-stable combustion framework; 7-an electric heating net; 8-an air distribution coil pipe; 81-an outer collar; 82-an intermediate collar; 83-an inner collar; 84-a first connection tube; 85-a second connecting tube; 9-supporting plates; 10-ash discharge pipe; 11-a pump body; 12-a flow valve; 13-a circulation line; 14-an air inlet pipe; 15-a fan; 16-furnace body; 17-a feed inlet.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

An oil sludge treatment apparatus according to an embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1, an embodiment of the present invention provides an oil sludge treatment device, including: the device comprises a furnace body 16, an electric heating net 7, an air distribution coil 8, a microwave radiator 3 and a stable combustion framework 6, wherein the furnace body 16 is provided with a cavity for treating oil sludge, a feed inlet 17 communicated with the cavity, an exhaust pipe 2 and an ash discharge pipe 10, the exhaust pipe 2 is connected to the top of the furnace body 16, and the ash discharge pipe 10 is connected to the bottom of the furnace body 16; the electric heating net 7 is fixedly connected to the lower part of the inner wall of the furnace body 16 so as to heat the oil sludge in the cavity; the air distribution coil pipe 8 is connected to the inner wall of the furnace body 16 and is positioned below the electric heating net 7, a plurality of air outlets are uniformly distributed on the upper part of the air distribution coil pipe 8, the air distribution coil pipe 8 is connected with the fan 15 through the air inlet pipe 14, and the fan 15 is arranged outside the furnace body 16; the microwave radiator 3 is arranged at the top of the cavity; the combustion stabilizing framework 6 is fixedly connected in the cavity and is positioned above the electric heating net 7.

According to the embodiment of the invention, through the arrangement of the furnace body 16, the electric heating net 7 and the microwave radiator 3, the oil sludge can be completely burnt after being accumulated and burnt in the closed space, and the operation is simple without pretreatment of the oil sludge. Through setting up steady burning skeleton 6 for the fatlute burns fast and even, and microwave radiator 3 releases the microwave to fatlute and steady burning skeleton 6 and is absorbed by it, makes the furnace body 16 keep certain temperature level when burning unstability, thereby ensures that the treatment effect is reliable, can reduce energy consumption, reduce cost, and treatment effeciency is high. The air distribution coil pipe 8 is uniformly provided with a plurality of air outlets, so that the air distribution surface is more uniform. The electric heating net 7 is used for heating materials and air in the furnace body 16 when the furnace body 16 is started and the operation is unstable, oil sludge and hot air are subjected to chemical reaction, oil contained in the oil sludge is decomposed and combusted, and water contained in the oil sludge is evaporated, so that the oil sludge deoiling treatment is completed.

Further, the blower 15 is a high-pressure blower 15. Because the air distribution coil pipe 8 is buried by accumulated oil sludge in the furnace body 16, the air outlet can be blocked, and the air outlet can be opened by adopting the high-pressure fan 15 to blow air into the furnace body 16, so that the air blowing is smoother.

Further, a control valve is connected to the ash discharge pipe 10, and the ash discharge pipe 10 is used for discharging ash slag generated after the oil sludge is burned.

Furthermore, a plurality of air outlets can be uniformly distributed at the lower part of the air distribution coil pipe 8, and the oil sludge below the air distribution coil pipe 8 can be blown to promote the rapid combustion of the oil sludge.

Further, when sludge with a low oil content (oil content < 5%) is disposed of, the electric heating net 7 is operated by being energized for a long period of time. When the oil sludge with higher oil content (oil content is more than 5%) is treated, the electric heating net 7 is put into operation only when the device is started, and the electric heating net 7 is powered off after the device is normally operated.

In some embodiments, a supporting plate 9 for supporting the sludge is connected in the cavity, the supporting plate 9 is arranged below the air distribution coil 8, the supporting plate 9 has an automatic opening and closing structure, and when the supporting plate 9 is opened, the processed ash falls into an ash discharging pipe 10.

Further, the supporting plate 9 is of a split type design and comprises two openable and closable plate bodies, the bottoms of the plate bodies are connected with the inner wall of the furnace body 16, the oil cylinders can stretch out and draw back cylinder rods in an electric control mode, when the oil sludge is completely combusted, the supporting plate 9 is opened downwards by remotely operating the oil cylinders, and ash falls into the ash discharging pipe 10.

In some embodiments, the flame stabilizing skeleton 6 comprises a plurality of transverse frames and a plurality of vertical frames, wherein the transverse frames are arranged in the vertical direction, the transverse frames are parallel to each other, the vertical frames are arranged in the horizontal direction, and the vertical frames are fixedly connected with the transverse frames to form a grid structure.

In some embodiments, the flame stabilizing skeleton 6 is made of silicon carbide. Has better heat resistance, strength and wave absorption.

In some embodiments, as shown in fig. 2, the air distribution coil 8 includes an outer ring pipe 81, an intermediate ring pipe 82 and an inner ring pipe 83, the outer ring pipe 81 is fixedly connected to the inner wall of the cavity, the outer ring pipe 81 and the air inlet pipe 14 are fixedly connected and mutually communicated, the intermediate ring pipe 82 is connected to the inside of the outer ring pipe 81 through a plurality of first connecting pipes 84, the inner ring pipe 83 is connected to the inside of the intermediate ring pipe 82 through a plurality of second connecting pipes 85, and the outer ring pipe 81, the intermediate ring pipe 82, the inner ring pipe 83, the first connecting pipes 84 and the second connecting pipes 85 are mutually communicated, and the outer ring pipe 81, the intermediate ring pipe 82 and the inner ring pipe 83 are concentrically arranged. The uniformity of air distribution can be improved.

In some embodiments, the transverse frames are crisscrossed frame bodies.

In some embodiments, the upper part of the furnace body 16 is a detachably connected upper cover 4, the microwave radiator 3 and the feed inlet 17 are both arranged at the upper cover 4, and the exhaust pipe 2 is connected to the upper cover 4. When the inside of the furnace body 16 needs to be overhauled, the upper cover 4 can be opened.

Further, the detachable mode can be threaded connection or plug connection, and sealing elements such as sealing rings are arranged at the connection positions so as to ensure tightness in the furnace body 16.

In some embodiments, the lifting ring 5 is connected to the flame stabilizing skeleton 6. When the stable combustion framework 6 needs to be maintained or replaced, the upper cover 4 can be opened, and then the lifting ring 5 is hooked by the lifting hook of the crane to be lifted.

In some embodiments, an exhaust pipe 2 is connected to the exhaust gas treatment device 1. The tail gas generated after combustion can be purified, and the tail gas is discharged after treatment, so that the pollution to the atmosphere is avoided.

In some embodiments, a circulation pipeline 13 is connected between the exhaust pipe 2 and the air inlet pipe 14, one end of the circulation pipeline 13 is connected to a downstream position of the exhaust gas treatment device 1, and the other end of the circulation pipeline 13 is connected to an upstream position of the fan 15. The tail gas containing heat after purification treatment can be recycled, and the energy utilization rate is improved.

Further, a pump body 11 and a flow valve 12 are connected to the circulation line 13, so that the flow rate of the exhaust gas entering the circulation line 13 can be controlled.

It should be noted that, the recycled tail gas is not too much, because the oxygen content is less, only the heat contained in the tail gas can be utilized, and meanwhile, the sufficient amount of air introduced into the furnace 16 is ensured, so that the oxygen content in the furnace 16 is ensured, and further, the complete combustion of the sludge is ensured.

Further, the tail gas in the exhaust pipe 2 can be led into other equipment needing heat, so that the heat can be fully utilized.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims

1. An oil sludge treatment device, characterized by comprising:

The device comprises a furnace body, a pressure sensor and a control unit, wherein the furnace body is provided with a cavity for treating oil sludge, a feed inlet, an exhaust pipe and an ash discharge pipe, wherein the feed inlet, the exhaust pipe and the ash discharge pipe are communicated with the cavity;

the electric heating net is fixedly connected to the lower part of the inner wall of the furnace body so as to heat the oil sludge in the cavity;

The air distribution coil is connected to the inner wall of the furnace body and positioned below the electric heating net, a plurality of air outlets are uniformly distributed on the upper part of the air distribution coil, the air distribution coil is connected with a fan through an air inlet pipe, and the fan is arranged outside the furnace body;

the microwave radiator is arranged at the top of the cavity;

The combustion stabilizing framework is fixedly connected in the cavity and is positioned above the electric heating net.

2. The sludge treatment device according to claim 1, wherein a supporting plate for supporting sludge is connected in the cavity, the supporting plate is arranged below the air distribution coil, the supporting plate has an automatic opening and closing structure, and when the supporting plate is opened, the treated ash falls into the ash discharge pipe.

3. The sludge treatment device according to claim 1, wherein the flame stabilizing skeleton comprises a plurality of transverse frames and a plurality of vertical frames, the transverse frames are arranged in the vertical direction, the transverse frames are parallel to each other, the vertical frames are arranged in the horizontal direction, and the vertical frames are fixedly connected with the transverse frames to form a grid structure.

4. The sludge treatment apparatus of claim 1, wherein the flame stabilizing skeleton is made of silicon carbide.

5. The sludge treatment device according to claim 1, wherein the air distribution coil pipe comprises an outer ring pipe, an intermediate ring pipe and an inner ring pipe, the outer ring pipe is fixedly connected to the inner wall of the cavity, the outer ring pipe and the air inlet pipe are fixedly connected and mutually communicated, the intermediate ring pipe is connected to the inside of the outer ring pipe through a plurality of first connecting pipes, the inner ring pipe is connected to the inside of the intermediate ring pipe through a plurality of second connecting pipes, the outer ring pipe, the intermediate ring pipe, the inner ring pipe, the first connecting pipes and the second connecting pipes are mutually communicated, and the outer ring pipe, the intermediate ring pipe and the inner ring pipe are concentrically arranged.

6. The sludge treatment device of claim 3, wherein the transverse frames are crisscross arranged frames.

7. The sludge treatment device according to claim 1, wherein the upper portion of the furnace body is a detachably connected upper cover, the microwave radiator and the feed inlet are both provided at the upper cover, and the exhaust pipe is connected to the upper cover.

8. The sludge treatment device of claim 8, wherein the flame stabilizing framework is connected with a hanging ring.

9. The sludge treatment apparatus of claim 1 wherein the exhaust pipe is connected to an exhaust treatment apparatus.

10. The sludge treatment apparatus according to claim 9, wherein a circulation line is connected between the exhaust pipe and the air inlet pipe, one end of the circulation line is connected to a downstream position of the exhaust gas treatment apparatus, and the other end of the circulation line is connected to an upstream position of the blower.