Oil sludge thermal desorption non-condensable gas multi-stage water curtain synergistic dust removal device

Abstract

The utility model discloses an oil sludge thermal desorption non-condensable gas multi-stage water curtain collaborative dust removal device which comprises a base, a supporting table is fixedly installed on one side of the top of the base, a first booster fan is fixedly installed on the top of the supporting table, and the oil sludge thermal desorption non-condensable gas multi-stage water curtain collaborative dust removal device further comprises a spraying inclined pipe arranged at the air supply end of the first booster fan, the spraying inclined pipe is fixedly installed on one side of the top of the base and comprises a plurality of connecting sections and a plurality of spraying sections, the connecting sections are connected with the spraying sections in a penetrating mode, one side of the spraying inclined pipe is connected with the connecting section to be connected with a first pressurizing fan in a penetrating mode, and one end of the connecting section on the other side is connected with a first gas-liquid separator in a penetrating mode; the first gas-liquid separator is fixedly connected with the water bath tank; the non-condensable gas can be purified, the purified non-condensable gas meets the cleanliness requirement of a combustion system, tail end flue gas particulate matter emission is superior to the environmental protection standard, environmental benefits and economic benefits are considered, and practicability is improved.

Description

A multi-stage water curtain synergistic dust removal device for thermal desorption of non-condensable gas from oil sludge Technical Field

[0001] This utility model relates to the field of industrial waste gas treatment technology, specifically a multi-stage water curtain synergistic dust removal device for non-condensable gas thermal desorption of oil sludge. Background Technology

[0002] Currently, traditional dust removal technologies such as cyclone separators have low efficiency in capturing micron-sized dust, while electrostatic precipitators are prone to plate corrosion under high humidity conditions, making it difficult to meet the dual requirements of improving the quality of non-condensable gas fuels and controlling emissions.

[0003] A multi-stage water curtain synergistic dust removal device for non-condensable gas thermal desorption of oil sludge is proposed to solve the problems mentioned above. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-stage water curtain synergistic dust removal device for non-condensable gas thermal desorption of oil sludge, in order to solve the problems mentioned in the background art, such as the low efficiency of traditional dust removal technologies like cyclone separators in capturing micron-sized dust, and the problem that electrostatic precipitators are prone to plate corrosion under high humidity conditions, making it difficult to meet the dual requirements of improving the quality of non-condensable gas fuel and controlling emissions.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage water curtain synergistic dust removal device for thermal desorption of non-condensable gas from oil sludge, including a base;

[0006] A support platform is fixedly installed on one side of the top of the base, and a first pressurizing fan is fixedly installed on the top of the support platform.

[0007] Also includes:

[0008] The first pressurizing blower is provided with a spray pipe at its air supply end. The spray pipe includes multiple connecting sections and multiple spray sections. The multiple connecting sections and multiple spray sections are connected through each other. One side of the connecting section is connected through to the first pressurizing blower, and one end of the other side of the connecting section is connected through to a first gas-liquid separator.

[0009] A water bath tank is fixedly installed on the other side of the top of the base, and the first gas-liquid separator is fixedly connected to the water bath tank. A second pressurizing fan is fixedly installed on the top of the water bath tank on one side of the first gas-liquid separator.

[0010] The air inlet of the second pressurizing fan is connected to the first gas-liquid separator through a pipe, and the air outlet of the second pressurizing fan is connected to the water bath tank.

[0011] Preferably, each of the multiple spray sections is provided with a textured tube inside, and several pipe clamps are fixedly installed on the outside of the spray section. An annular pipe is fixedly installed on the inside of the several pipe clamps. Several connecting pipes are connected through one side of the annular pipe and are connected through the spray section. The end of the connecting pipe away from the annular pipe passes through the spray section and is connected through the nozzle.

[0012] Preferably, the water bath tank is provided with a first compartment, a second compartment, a third compartment, a fourth compartment and a fifth compartment, and the first compartment, the second compartment, the third compartment and the fourth compartment are interconnected, and the fifth compartment is located on top of the second compartment.

[0013] Preferably, the top opening of the fifth compartment is connected to the air supply end of the second pressurizing fan, and the fifth compartment adopts a side-standing right-angled trapezoidal cross-section design. Multiple sets of air guiding pipes are distributed along the gradient on the inclined surface of the fifth compartment, and a gas-liquid mixer is provided at one end of the air guiding pipe. A second gas-liquid separator is provided at the top of the water bath tank above the fourth compartment.

[0014] Preferably, a water pump is symmetrically connected to the lower side of one side of the water bath tank, and an installation pipe is connected to the outlet end of the water pump. The installation pipe passes through the support platform and is connected to multiple annular pipes.

[0015] Preferably, the pump's pumping end is connected to a pumping pipe, which is also connected to a water bath tank. A mounting rod is fixedly installed inside the lower part of the pumping pipe, and a rotating rod is rotatably connected inside the mounting rod. A filter cover is fixedly installed at the bottom of the pumping pipe, and a rotating blade is fixedly installed on the upper part of the rotating rod.

[0016] Preferably, the rotating rod is rotatably connected to the filter cover, and rotating frames are symmetrically installed on the outside of the rotating rod below the filter cover, with brush bristles provided on the side of the two rotating frames near the filter cover.

[0017] Compared with the prior art, the beneficial effects of this utility model are: this multi-stage water curtain synergistic dust removal device for non-condensable gas from thermal desorption of oil sludge can purify non-condensable gas, and the purified non-condensable gas meets the cleanliness requirements of the combustion system. The particulate matter emissions of the terminal flue gas are better than the environmental protection standards, thus improving its practicality. The specific details are as follows:

[0018] 1. By combining multi-stage water curtains and venturi-enhanced dust removal, along with gradient flow compartments and modular design, a highly efficient graded purification capability is achieved. The high-speed atomization of the venturi tube and the water curtain interception significantly reduce dust concentration and simultaneously adsorb volatile organic compounds. The gas-liquid countercurrent contact of the multi-stage water bath compartments enhances particulate matter settling. The inclined design of the spray pipes and the periodic water mist flushing effectively prevent scale buildup in the throat. The gradient flow compartments optimize fluid distribution through asymmetric cavities to improve gas-liquid contact efficiency. The modular flange connection structure supports the rapid addition or removal of processing units to adapt to different operating conditions. The closed-loop water circulation system enables efficient reuse of process water and reduces wastewater discharge. The purified non-condensable gas meets the cleanliness requirements of the combustion system, and the particulate matter emissions of the terminal flue gas are better than environmental standards, improving practicality.

[0019] 2. The water pump draws water through a suction pipe. During the pumping process, a filter cover prevents impurities from entering the suction pipe and the nozzles, thus avoiding clogging. The water flow impacts multiple rotating blades at an angle, causing the rotating rod to rotate. This rotation, in turn, drives two rotating frames, whose brushes clean impurities adhering to the filter cover. This prevents clogging and improves pumping efficiency, enhancing practicality. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 is a schematic diagram of the spray inclined tube structure of this utility model;

[0022] Figure 3 is a schematic cross-sectional view of the spray section of this utility model from the front.

[0023] Figure 4 is a schematic cross-sectional view of the front of the water tank of this utility model;

[0024] Figure 5 is a schematic cross-sectional view of the water pumping pipe of this utility model.

[0025] Figure 6 is a process flow diagram of this utility model.

[0026] In the diagram: 1. Base; 101. Support platform; 102. First pressurizing fan; 2. Spraying inclined pipe; 201. Connecting section; 202. Spraying section; 203. Pipe clamp; 204. Annular pipe; 205. Connecting pipe; 206. Spray head; 3. First gas-liquid separator; 4. Second pressurizing fan; 5. Water bath tank; 501. First compartment; 502. Second compartment; 503. Third compartment; 504. Fourth compartment; 505. Fifth compartment; 506. Gas-liquid mixer; 6. Second gas-liquid separator; 7. Water pump; 701. Mounting pipe; 702. Pumping pipe; 703. Filter cover; 704. Mounting rod; 705. Rotating rod; 706. Rotating blade; 707. Rotating frame. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please refer to Figures 1-6. This utility model provides the following technical solution: a multi-stage water curtain synergistic dust removal device for non-condensable gases from thermal desorption of oil sludge, comprising a base 1, a support platform 101 fixedly installed on one side of the top of the base 1, and a first pressurizing fan 102 fixedly installed on the top of the support platform 101. It also includes: a spray pipe 2 provided at the air supply end of the first pressurizing fan 102, the spray pipe 2 comprising multiple connecting sections 201 and multiple spray sections 202, with the connecting sections 201 and spray sections 202 connected through each other. Furthermore, one side of the connecting section 201 is connected through to the first pressurizing fan 102, and the other side is connected... One end of the connecting section 201 is connected to a first gas-liquid separator 3. A water bath tank 5 is fixedly installed on the other side of the top of the base 1, and the first gas-liquid separator 3 is fixedly connected to the water bath tank 5. A second pressurizing fan 4 is fixedly installed on the top of the water bath tank 5 on one side of the first gas-liquid separator 3. The air inlet of the second pressurizing fan 4 is connected to the first gas-liquid separator 3 through a pipe, and the air outlet of the second pressurizing fan 4 is connected to the water bath tank 5. This can purify the non-condensable gas. After purification, the non-condensable gas meets the cleanliness requirements of the combustion system, and the particulate matter emission of the terminal flue gas is better than the environmental protection standard, which improves the practicality.

[0029] Each of the multi-segment spray sections 202 has internal vented pipes, and several pipe clamps 203 are fixedly installed on the outside of the spray section 202. Annular pipes 204 are fixedly installed on the inner side of the pipe clamps 203, and several connecting pipes 205 are connected through one side of the annular pipes 204. The connecting pipes 205 are connected through the spray section 202, and the end of the connecting pipe 205 away from the annular pipe 204 passes through the spray section 202 and is connected to a nozzle 206, which can spray and suppress dust from the gas. The water bath tank 5 has a first compartment 501 and a second compartment 502. The system comprises compartment 502, third compartment 503, fourth compartment 504, and fifth compartment 505. Compartments 501, 502, 503, and 504 are interconnected. Compartment 505 is located on top of compartment 502 for further dust removal. The top opening of compartment 505 connects to the air supply end of the second pressurizing fan 4. Compartment 505 features a side-standing right-angled trapezoidal cross-section design, and multiple sets of air guide pipes are distributed along a gradient on the inclined surface of compartment 505. One end of each air guide pipe is equipped with a gas-liquid mixing valve. The water bath tank 5 has a second gas-liquid separator 6 located above the fourth compartment 504, which optimizes gas distribution and improves gas-liquid contact efficiency. A water pump 7 is symmetrically connected to the lower side of one side of the water bath tank 5, and an installation pipe 701 is connected to the outlet of the water pump 7. The installation pipe 701 passes through the support platform 101 and connects to multiple annular pipes 204, forming a closed-loop water circulation system. A suction pipe 702 is connected to the suction end of the water pump 7, and the suction pipe 702 is connected to the water bath tank 5. The lower part of the suction pipe 702 is fixed... A mounting rod 704 is fixedly installed, and a rotating rod 705 is rotatably connected inside the mounting rod 704. A filter cover 703 is fixedly installed at the bottom of the water pumping pipe 702, and a rotating blade 706 is fixedly installed on the upper part of the rotating rod 705 to prevent impurities from entering during the water pumping process. The rotating rod 705 is rotatably connected to the filter cover 703, and rotating frames 707 are symmetrically installed on the outside of the rotating rod 705 below the filter cover 703. Brush bristles are provided on the side of the two rotating frames 707 near the filter cover 703 to clean the outside of the filter cover 703.

[0030] Working Principle: Before using this multi-stage water curtain synergistic dust removal device for non-condensable gas from thermal desorption of sludge, it is necessary to check the overall condition of the device to ensure normal operation. As shown in Figures 1-6, the first pressurizing fan 102 pressurizes and transports the dust-laden non-condensable gas from the thermal desorption system to the spray inclined tube 2. The spray inclined tube 2 is composed of multiple sets of connecting sections 201 and spray sections 202 connected alternately. The spray section 202 is equipped with nozzles 206 and venturi tubes. When the dust-laden non-condensable gas enters the spray section 202, the water mist sprayed from the nozzles 206 mixes with the gas. Under the action of the venturi tube, the gas velocity increases, and the water mist collides with and captures the dust particles. The inclination design of the spray inclined tube 2 helps gravity self-cleaning and reduces dust accumulation in the throat. The gas after being treated by the spray inclined tube 2 contains a certain amount of liquid droplets. These droplets are collected in the first gas... The gas is separated in the liquid separator 3 and flows into the first compartment 501 under the action of gravity to reduce the corrosion of subsequent processing equipment. The second pressurizing fan 4 pressurizes the non-condensable gas after it has been treated by the first gas-liquid separator 3 and then sends it to the water bath tank 5 for further dust removal. The gas passes through the fifth compartment 505, the second compartment 502 and the third compartment 503 in sequence, and comes into countercurrent contact with the process water to further remove dust. In particular, the diversion design of the fifth compartment 505 and the gas-liquid mixer 506 optimize the gas distribution and improve the gas-liquid contact efficiency. The gas after being treated by the water bath tank 5 still contains a certain amount of moisture. This moisture is separated into the fourth compartment 504 in the second gas-liquid separator 6 to obtain dry non-condensable gas. The water pump 7 is used to transport the process water in the water bath tank 5 to the spray inclined pipe 2 to form a closed water circulation system.

[0031] The water pump 7 can pump water through the water pumping pipe 702. During the pumping process, the water can be filtered through the filter cover 703 to prevent impurities from entering the water pumping pipe 702 and the nozzle 206 through the installation pipe 701, thus preventing the nozzle 206 from becoming clogged. When the water flows into the water pumping pipe 702, it can impact multiple rotating blades 706. The rotating blades 706 are tilted so that the impact of the water flow on the rotating blades 706 can drive the rotating rod 705 to rotate. After the rotating rod 705 rotates, it can drive two rotating frames 707 to rotate, so that the bristles on the rotating frames 707 can clean the impurities attached to the outside of the filter cover 703, preventing impurities from clogging the filter cover 703 during the pumping process and affecting the pumping efficiency, thus improving practicality.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-stage water curtain synergistic dust removal device for non-condensable gas thermal desorption of oil sludge, comprising a base (1); a support platform (101) is fixedly installed on one side of the top of the base (1), and a first pressurizing fan (102) is fixedly installed on the top of the support platform (101); characterized in that, Also includes: The first pressurizing blower (102) has a spray pipe (2) at its air supply end. The spray pipe (2) includes multiple connecting sections (201) and multiple spray sections (202), and the multiple connecting sections (201) and multiple spray sections (202) are connected through each other. One side of the connecting section (201) is connected through to the first pressurizing blower (102), and one end of the other side of the connecting section (201) is connected through to a first gas-liquid separator (3). In the case, a water bath tank (5) is fixedly installed on the other side of the top of the base (1), and the first gas-liquid separator (3) is fixedly connected to the water bath tank (5), and a second pressurizing fan (4) is fixedly installed on the top of the water bath tank (5) on one side of the first gas-liquid separator (3); wherein, the air inlet end of the second pressurizing fan (4) is connected to the first gas-liquid separator (3) through a pipe, and the air outlet end of the second pressurizing fan (4) is connected to the water bath tank (5).

2. The multi-stage water curtain synergistic dust removal device for non-condensable gas thermal desorption of oil sludge according to claim 1, characterized in that: Each of the multiple spray sections (202) is equipped with a textured tube inside, and several pipe clamps (203) are fixedly installed on the outside of the spray section (202). An annular pipe (204) is fixedly installed on the inside of the several pipe clamps (203). Several connecting pipes (205) are connected through one side of the annular pipe (204). The connecting pipes (205) are connected through the spray section (202), and the end of the connecting pipe (205) away from the annular pipe (204) passes through the spray section (202) and is connected through the nozzle (206).

3. The multi-stage water curtain synergistic dust removal device for non-condensable gas thermal desorption of oil sludge according to claim 1, characterized in that: The water bath tank (5) is provided with a first compartment (501), a second compartment (502), a third compartment (503), a fourth compartment (504) and a fifth compartment (505), and the first compartment (501), the second compartment (502), the third compartment (503) and the fourth compartment (504) are interconnected, and the fifth compartment (505) is located on top of the second compartment (502).

4. The multi-stage water curtain synergistic dust removal device for non-condensable gas thermal desorption of oil sludge according to claim 3, characterized in that: The top opening of the fifth compartment (505) is connected to the air supply end of the second pressurizing fan (4), and the fifth compartment (505) adopts a side-standing right-angled trapezoidal cross-section design. Multiple sets of air guiding pipes are distributed along the gradient on the inclined surface of the fifth compartment (505), and a gas-liquid mixer (506) is provided at one end of the air guiding pipe. A second gas-liquid separator (6) is provided on the top of the water bath tank (5) above the fourth compartment (504).

5. The multi-stage water curtain synergistic dust removal device for non-condensable gas thermal desorption of oil sludge according to claim 2, characterized in that: A water pump (7) is symmetrically connected to the lower side of one side of the water bath tank (5), and an installation pipe (701) is connected to the outlet end of the water pump (7). The installation pipe (701) passes through the support platform (101) and is connected to multiple annular pipes (204).

6. The multi-stage water curtain synergistic dust removal device for non-condensable gas thermal desorption of oil sludge according to claim 5, characterized in that: The pump (7) has a pump pipe (702) that is connected through to the pump end, and the pump pipe (702) is connected through to the water bath tank (5). An installation rod (704) is fixedly installed inside the lower part of the pump pipe (702), and a rotating rod (705) is rotatably connected inside the installation rod (704). A filter cover (703) is fixedly installed at the bottom of the pump pipe (702), and a rotating blade (706) is fixedly installed on the upper part of the rotating rod (705).

7. The multi-stage water curtain synergistic dust removal device for non-condensable gas thermal desorption of oil sludge according to claim 6, characterized in that: The rotating rod (705) is rotatably connected to the filter cover (703), and rotating frames (707) are symmetrically installed on the outside of the rotating rod (705) below the filter cover (703), and brush bristles are provided on the side of the two rotating frames (707) near the filter cover (703).

Images