Gas-phase activated carbon adsorption tank for oily sewage

Abstract

The utility model belongs to the technical field of adsorption tanks, and relates to a gas-phase activated carbon adsorption tank for oily sewage, which is characterized in that the content of CO in a tank body is monitored in real time through a CO detector, when the detected concentration exceeds the standard, CO is generated due to incomplete combustion of activated carbon spontaneous combustion, and meanwhile, a signal is sent to a PLC (Programmable Logic Controller) control system to control a spray header at the top to spray water; meanwhile, the interior of the tank body can be maintained through an inspection manhole in the top; the two activated carbon filter layers in the tank body can effectively absorb impurities in waste gas, the two activated carbon adsorption tanks alternately carry out adsorption and desorption through the reversing valves, high-temperature steam is introduced to desorb the activated carbon layers after adsorption saturation, field observation can be carried out through a window on the side edge, and treated clean gas is discharged through a gas outlet. Impurities are discharged through an emptying opening in the bottom, and the activated carbon layer can be rapidly and conveniently replaced.

Description

Technical Field

[0001] The utility model belongs to the technical field of adsorption tanks, and particularly relates to a gas phase activated carbon adsorption tank for oily sewage. Background Art

[0002] Activated carbon is a widely used adsorbent with high specific surface area, porous structure and good adsorption performance. Traditional activated carbon adsorption tanks are usually composed of a tank body, an activated carbon layer and a filter layer. The fluid is pretreated by the filter layer, and then the impurities and harmful substances in the fluid are adsorbed by the activated carbon layer. However, there are some problems with traditional activated carbon adsorption tanks, such as low efficiency of activated carbon adsorption and desorption, and spontaneous combustion of the activated carbon layer. Therefore, there is a need for a device that can efficiently treat exhaust gas and can detect the status of the activated carbon layer in the tank in real time and quickly and conveniently replace the activated carbon. Summary of the invention

[0003] The utility model aims to provide a gas phase activated carbon adsorption tank for oily wastewater, so as to solve the problems of being able to efficiently treat waste gas, detect the state of the activated carbon layer in the tank in real time, and replace the activated carbon quickly and conveniently.

[0004] In order to achieve the above-mentioned purpose, the specific technical scheme of a gas phase activated carbon adsorption tank for oily wastewater of the utility model is as follows:

[0005] A gas phase activated carbon adsorption tank for oily wastewater, comprising a tank body and a condensation system, wherein temperature transmitter connectors for installing a temperature transmitter are provided on both sides of the tank body, windows, an exhaust gas inlet and a steam inlet are provided on both sides of the tank body, the tank body is fixed by a support rod, the condensation system is connected to an exhaust pipe through a pipeline, the exhaust gas inlet is connected to a reversing valve, and the condensation system is connected to the reversing valve through a pipeline; the device is provided with a control system, and the device is connected through pipelines and cables;

[0006] Windows, exhaust gas inlets and steam inlets are provided on both sides of the tank body, a pressure gauge joint, an air outlet, a CO detector and an inspection manhole are provided on the top of the tank body, a spray head is provided on the top of the tank body, two layers of activated carbon are provided below the spray head, a fixing block 1 is provided below each of the activated carbon layers, an air flow distributor is provided below the fixing block 1, the exhaust gas inlet is connected to the air flow distributor, the exhaust gas inlet is connected to the exhaust pipe through a pipeline, and the activated carbon layer can be quickly and conveniently replaced;

[0007] The activated carbon collection box comprises a fan-shaped box body, a collection cavity and a through hole. The fan-shaped box body is provided with a collection cavity for storing activated carbon, and the through hole is arranged on the fan-shaped box body.

[0008] Furthermore, a CO detector is provided at the gas outlet of the tank to monitor the CO concentration in real time.

[0009] Furthermore, a maintenance manhole is provided on the top of the tank body.

[0010] Furthermore, a reversing valve is provided in front of the exhaust gas inlet of the tank body to achieve non-stop agent replacement.

[0011] Furthermore, the waste gas passes through a condensation system before treatment and is desorbed using high-temperature steam.

[0012] The advantages of the utility model are:

[0013] The utility model monitors the CO content inside the tank body in real time through a CO detector. When it is detected that the concentration exceeds the standard, it indicates that CO is produced by spontaneous combustion and incomplete combustion of activated carbon. At the same time, a signal is sent to the PLC control system to control the sprinkler head on the top to spray water. At the same time, the maintenance manhole on the top can be used to maintain the inside of the tank body. The two layers of activated carbon filter layers in the tank body can effectively absorb impurities in the exhaust gas, and the two activated carbon adsorption tanks are alternately adsorbed and desorbed through a reversing valve. When the adsorption is saturated, high-temperature steam is introduced to desorb the activated carbon layer. The side window can be observed on site. The treated clean gas is discharged through the air outlet, and the impurities are discharged through the venting port at the bottom. The activated carbon layer can be quickly and conveniently replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the activated carbon layer structure of the utility model;

[0016] Figure 3 It is a cross-sectional view of the activated carbon layer of the utility model;

[0017] Figure 4 A schematic diagram of the structure of the hinge of the utility model;

[0018] Description of the markings in the figure:

[0019] Tank body 1; activated carbon layer 2; fixing block 2-1; fixing bolt 2-2; activated carbon collection box 2-3; fan-shaped box 2-3-1; collection chamber 2-3-2; through hole 2-3-3; hinge 2-4; moving ring 2-5; connecting rope 2-6; temperature transmitter connector 3; fixing block 1 4; support 5; condensation system 6; pressure gauge connector 7; air outlet 8; CO detector 9; inspection manhole 10; sprinkler head 11; window 12; exhaust gas inlet 13; reversing valve 14; air flow distributor 15; steam inlet 16; exhaust pipe 17. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] like Figure 1-4 As shown, a gas phase activated carbon adsorption tank for oily wastewater includes a tank body 1 and a condensation system 6. Temperature transmitter connectors 3 for installing a temperature transmitter are provided on both sides of the tank body 1. Windows 12, exhaust gas inlet 13 and steam inlet 16 are provided on both sides of the tank body 1. The tank body 1 is fixed by a support rod 5. The condensation system 6 is connected to an exhaust pipe 17 through a pipeline. The exhaust gas inlet 13 is connected to a reversing valve 14. The condensation system 6 is connected to the reversing valve 14 through a pipeline. The device is provided with a control system, and the device is connected through pipelines and cables.

[0023] The tank body 1 is provided with windows 12, exhaust gas inlet 13 and steam inlet 16 on both sides, the tank body is provided with a pressure gauge joint 7, an air outlet 8, a CO detector 9 and a maintenance manhole 10 on the top, the tank body 1 is provided with a spray head 11 on the top, two layers of activated carbon layers 2 are provided below the spray head 11, fixed blocks 4 are provided below the activated carbon layers 2, and an air flow distributor 15 is provided below the fixed blocks 4, the exhaust gas inlet 13 is connected to the air flow distributor 15, the exhaust gas inlet 13 is connected to the exhaust pipe 17 through a pipeline, and the activated carbon layer 2 can be quickly and conveniently replaced;

[0024] The activated carbon layer 2 includes a fixed block 2-1, a fixed bolt 2-2, an activated carbon collection box 2-3, a hinge 2-4, a movable ring 2-5 and a connecting rope 2-6. The fixed block 2-1 is provided with a fixed bolt 2-2, four activated carbon collection boxes 2-3 are arranged on the fixed block 2-1 through a hinge 2-4, the movable ring 2-5 slides on the fixed bolt 2-2, and the movable ring 2-5 is connected to the activated carbon collection box 2-3 through a connecting rope 2-6.

[0025] The new type monitors the CO content inside the tank body 1 in real time through the CO detector 9. When the concentration exceeds the standard, it means that the activated carbon spontaneously ignites and incompletely burns to produce CO. At the same time, a signal is sent to the PLC control system to control the top sprinkler head 11 to spray water. At the same time, the top inspection manhole 10 can perform maintenance on the inside of the tank body 1; the two layers of activated carbon 2 in the tank body can effectively absorb impurities in the exhaust gas, and the two activated carbon layers 2 are alternately adsorbed and desorbed through the reversing valve 15. When the adsorption is saturated, high-temperature steam is introduced to desorb the activated carbon layer. The side window 10 can be observed on site. The treated clean gas is discharged through the outlet, and the impurities are discharged through the vent at the bottom. The activated carbon layer 2 can be quickly and conveniently replaced. When replacing the activated carbon layer 2, the fixing bolt 2-2 is pulled upwards, and the fixing bolt 2-2 drives the fixed block 2-1 to move. Since the fixed block 2-1 and the activated carbon collecting box 2-3 are hinged, the activated carbon collecting box 2-3 will rotate to make the shape of the activated carbon layer 2 smaller and convenient to take out. When the activated carbon layer 2 needs to be put back, the moving ring 2-5 is pulled to move the moving ring 2-5 to the upper end of the fixing bolt 2-2. The fixing bolt 2-2 drives the activated carbon collecting box 2-3 to rotate through the connecting rope 2-6 so that the activated carbon collecting box 2-3 and the fixed block 2-1 form a complete activated carbon layer 2 and are then placed on the fixed block 1 4.

[0026] Among them, Figure 1-4 As shown, the activated carbon collection box 2-3 includes a fan-shaped box body 2-3-1, a collection chamber 2-3-2 and a through hole 2-3-3. The fan-shaped box body 2-3-1 is provided with a collection chamber 2-3-2 for storing activated carbon, and the through hole 2-3-3 is arranged on the fan-shaped box body 2-3-1.

[0027] Among them, Figure 1-4 As shown, the gas outlet 8 of the tank body 1 is provided with a CO detector 9 to monitor the CO concentration in real time.

[0028] Among them, Figure 1-4 As shown, a manhole 10 is provided on the top of the tank body 1 .

[0029] Among them, Figure 1-4 As shown, a reversing valve 14 is provided in front of the exhaust gas inlet 13 of the tank body 1 to achieve non-stop agent replacement.

[0030] After the oil-containing waste gas is cooled by the condensation system, it enters from the waste gas inlet 13 and is evenly distributed to the bottom of the tank body 1 through the air flow distributor 15. The waste gas then rises and is adsorbed by two layers of activated carbon. The air intake direction can be changed by switching the reversing valve 14. The two adsorption tanks can be operated in parallel or in series, or one is on and the other is on standby, so that the agent can be replaced without stopping. This process can extend the operation cycle of the device and make the most of the adsorbent. A cross-line is set at the entrance of the waste gas treatment equipment. When the agent is replaced, the waste gas is discharged through the cross-line. When the waste gas pressure in the tank is higher than the design pressure, the waste gas is directly discharged into the atmosphere.

[0031] Among them, Figure 1-4 As shown, the exhaust gas passes through a condensation system before being treated and is desorbed using high-temperature steam.

[0032] Before waste gas treatment, it passes through a condensation system and is desorbed using high-temperature steam. The adsorption effect of activated carbon on waste gas is strong at low temperatures and poor at high temperatures, so cooling the gas before adsorption can make the activated carbon layer more efficient, and using high-temperature desorption can make the desorption more complete.

[0033] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and powders without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A gas phase activated carbon adsorption tank for oily wastewater, characterized in that: The device comprises a tank body (1) and a condensation system (6), wherein temperature transmitter connectors (3) for installing a temperature transmitter are provided on both sides of the tank body (1), windows (12), an exhaust gas inlet (13) and a steam inlet (16) are provided on both sides of the tank body (1), the tank body (1) is fixed by a support rod (5), the condensation system (6) is connected to an exhaust pipe (17) by a pipeline, the exhaust gas inlet (13) is connected to a reversing valve (14), and the condensation system (6) is connected to the reversing valve (14) by a pipeline; the device is provided with a control system, and the device is connected by pipelines and cables; The tank body (1) is provided with windows (12), an exhaust gas inlet (13) and a steam inlet (16) on both sides; the tank body is provided with a pressure gauge joint (7), an exhaust port (8), a CO detector (9) and an inspection manhole (10) on the top; a spray head (11) is provided on the top of the tank body (1); two layers of activated carbon layers (2) are provided below the spray head (11); fixed blocks (4) are provided below the activated carbon layers (2); an air flow distributor (15) is provided below the fixed blocks (4); the exhaust gas inlet (13) is connected to the air flow distributor (15); the exhaust gas inlet (13) is connected to the exhaust pipe (17) through a pipeline; the activated carbon layer (2) can be replaced quickly and conveniently; The activated carbon layer (2) comprises a second fixed block (2-1), a fixed bolt (2-2), an activated carbon collection box (2-3), a hinge (2-4), a movable ring (2-5) and a connecting rope (2-6); the second fixed block (2-1) is provided with a fixed bolt (2-2); four activated carbon collection boxes (2-3) are arranged on the second fixed block (2-1) via a hinge (2-4); the movable ring (2-5) slides on the fixed bolt (2-2); and the movable ring (2-5) is connected to the activated carbon collection box (2-3) via a connecting rope (2-6).

2. The gas phase activated carbon adsorption tank for oily wastewater according to claim 1, characterized in that: The activated carbon collection box (2-3) comprises a fan-shaped box body (2-3-1), a collection chamber (2-3-2) and a through hole (2-3-3); the fan-shaped box body (2-3-1) is provided with a collection chamber (2-3-2) for storing activated carbon, and the through hole (2-3-3) is provided on the fan-shaped box body (2-3-1).

3. The gas phase activated carbon adsorption tank for oily wastewater according to claim 1, characterized in that: The gas outlet (8) of the tank body (1) is provided with a CO detector (9) to monitor the CO concentration in real time.

4. The gas phase activated carbon adsorption tank for oily wastewater according to claim 1, characterized in that: The top of the tank body (1) is provided with a maintenance manhole (10).

5. The gas phase activated carbon adsorption tank for oily wastewater according to claim 1, characterized in that: A reversing valve (14) is provided in front of the waste gas inlet (13) of the tank body (1) to achieve non-stop agent replacement.

6. The gas phase activated carbon adsorption tank for oily wastewater according to claim 1, characterized in that: The waste gas is passed through a condensation system before being treated and desorbed using high temperature steam.

Images