Closed activated carbon loading and unloading equipment

Abstract

The utility model belongs to the technical field of activated carbon loading and unloading, and particularly relates to closed activated carbon loading and unloading equipment which is used for solving the problems of dust pollution, high-risk operation and construction condition limitation in the activated carbon loading and unloading process and mainly comprises a material collector, a gas processor and a vacuum pump. The collector is mainly composed of a collecting bin and a discharging bin, and the bottom of the collecting bin is communicated with the top of the discharging bin through a valve; the gas treater mainly comprises a gas-water separation tank, a gas-water separator, a louver board and a partition board; the gas-water separation tank is divided into a left space and a right space through louver boards and partition boards; the top of the gas-water separation tank is provided with a gas-water separator which is respectively communicated with the upper parts of the discharge bin and the adsorption tank through a gas outlet three-way valve; an air inlet of the vacuum pump is respectively communicated with the aggregate bin cover body and the upper part of the adsorption tank through an air inlet three-way valve; and a gas outlet of the gas-water separator is communicated with the gas treatment area of the right space of the gas-water separation tank. According to the utility model, closed and automatic loading and unloading are realized, and the conditions of dust pollution, high-risk operation and construction condition limitation are avoided.

Description

Technical Field

[0001] This utility model belongs to the field of activated carbon loading and unloading technology, specifically a closed activated carbon loading and unloading device. Background Technology

[0002] Activated carbon is a crucial consumable in oil and gas treatment systems used during oil depot handling. Its function is to adsorb volatile organic compounds (VOCs) and odors from oil and gas, and then desorb them to convert the oil and gas back into usable oil products for reuse. Oil and gas recovery systems utilize the adsorption and pressure swing desorption properties of activated carbon to significantly reduce VOC emissions during oil depot handling and to convert the adsorbed oil and gas back into usable oil products, demonstrating significant environmental and economic value. However, activated carbon is a consumable material; its adsorption capacity gradually decreases over time, requiring periodic replacement.

[0003] The activated carbon in the oil and gas recovery devices of petrochemical enterprises' refining and storage facilities needs to be replaced. The conventional practice is as follows:

[0004] Unloading: The material is manually collected from the bottom outlet of the adsorption tank, bagged, and then transported by crane to the outside of the equipment area for loading and transportation.

[0005] Loading: The crane lifts the activated carbon ton bag to the top loading port of the adsorption tank, and the rope knot at the bottom of the ton bag is removed manually, allowing the activated carbon to flow into the adsorption tank by gravity.

[0006] The above-mentioned conventional practices have the following drawbacks:

[0007] Dust pollution: Activated carbon dust pollution is severe during loading and unloading.

[0008] Loading and unloading operations are considered high-risk: a) Old carbon is removed from the ton bags and then lifted off-site by crane; b) New carbon ton bags are transported to the top of the adsorption tank by crane, and then the ropes binding the bottom of the ton bags are manually removed to unload the activated carbon into the adsorption tank. Both of these steps inevitably involve personnel operating under the crane boom, thus constituting high-risk operations.

[0009] The loading and unloading conditions are demanding: the terrain around the location of the oil and gas recovery device is uneven and does not meet the conditions for crane erection and lifting; if a protective shed is installed above the oil and gas recovery equipment, it is impossible to use a crane to transfer activated carbon. Utility Model Content

[0010] To address the aforementioned issues, this invention provides a closed-loop activated carbon loading and unloading device that enables closed-loop, automated loading and unloading, avoiding dust pollution, high-risk operations, and limitations imposed by construction conditions.

[0011] To achieve the above objectives, the present invention adopts the following technical solution:

[0012] A closed activated carbon loading and unloading device mainly includes a collector, a gas processor, and a vacuum pump;

[0013] The collector mainly consists of a collection bin and a discharge bin. The upper cover of the collection bin is provided with an opening, and the middle part is provided with an openable and closable material inlet. Its bottom is connected to the top of the discharge bin through a valve. The bottom of the discharge bin is provided with an outlet.

[0014] The gas processor mainly consists of a gas-water separation tank, a gas-water separator, louvers, and partitions. The lower part of the gas-water separation tank is a water storage area, which is divided into left and right spaces by partitions. The upper part of the gas-water separation tank is a gas processing area, which is also divided into left and right spaces by louvers. An air outlet is provided at the top of the gas-water separation tank, and a gas-water separator is installed thereon. The gas-water separator is connected to the discharge hopper and the upper pipeline of the adsorption tank through a three-way air outlet valve.

[0015] The air inlet of the vacuum pump is connected to the cover of the collection bin and the upper pipe of the adsorption tank through an air inlet three-way valve; the air outlet of the vacuum pump is connected to the gas treatment area pipe in the right space of the gas-water separator.

[0016] Furthermore, a dust filter is installed inside the cover of the collector.

[0017] Furthermore, the cover of the collector is detachable.

[0018] Furthermore, a water supply valve is installed in the middle of the gas-water separator, which controls the water level in the storage area at the top of the partition.

[0019] Furthermore, the top of the louvered plate contacts the top of the gas-water separator, and its bottom contacts the partition plate.

[0020] Furthermore, a drain valve is installed at the bottom of the gas-water separator.

[0021] Furthermore, the vacuum pump is a water ring explosion-proof vacuum pump, and the water pipe of the water ring explosion-proof vacuum pump is connected to the water in the gas-water separator.

[0022] Furthermore, the valve has the function of locking the air in the collection bin while simultaneously unloading material.

[0023] The advantages of this utility model are:

[0024] The work site does not involve lifting or installation operations, thus avoiding the risks of high-risk operations.

[0025] It is not affected by terrain or surrounding equipment environment, avoids construction conditions, and achieves automation.

[0026] Dust and exhaust pollution on site are under control, achieving environmentally friendly construction. Attached Figure Description

[0027] Figure 1 Schematic diagram of activated carbon loading and unloading device;

[0028] Figure 2 : Schematic diagram of activated carbon unloading;

[0029] Figure 3 : Schematic diagram of activated carbon loading. Detailed Implementation

[0030] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments and specific features in the embodiments are detailed descriptions of the technical solution of the present application, rather than limitations thereof. In the absence of conflict, the embodiments and technical features in the embodiments can be combined with each other.

[0031] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0032] This utility model provides a closed activated carbon loading and unloading device, which uses a vacuum pump 3 to generate negative pressure to load and unload activated carbon in the adsorption tank; at the same time, the dust and waste gas generated during the loading and unloading process are discharged in an environmentally friendly manner through a closed gas processor.

[0033] like Figure 1 As shown, a closed-loop activated carbon loading and unloading device mainly includes a collector 1, a gas processor 2, and a vacuum pump 3; the vacuum pump 3, collector 1, and gas processor 2 are connected by pipelines. The vacuum pump 3 is used to create negative pressure inside the activated carbon loading and unloading device to realize the transfer of activated carbon; the collector 1 is used to collect activated carbon, receive waste material in the adsorption tank 4 during unloading, and fill new activated carbon during loading and transfer it to the adsorption tank 4; the gas processor 2 is used to treat dust and waste gas during the activated carbon loading and unloading process. Example

[0034] In this embodiment, the collector 1 mainly consists of a collection bin 11 and a discharge bin 12. The collection bin 11 is used to collect activated carbon, receive waste from the adsorption tank 4 during unloading, and fill with new activated carbon during loading. The discharge bin 12 is used to transfer the activated carbon in the collection bin 11. The upper part of the collection bin 11 is an open-type cover 111 with openings. A dust filter 112 is installed inside the cover 111, completely covering the openings for dust removal. The cover 111 of the collection bin 11 can be detachable, allowing it to be removed during loading for easy filling with new activated carbon. A feed port 113 is provided in the middle of the collection bin 11, equipped with an air valve to open and close the port. The bottom of the collection bin 11 is connected to the top of the discharge bin 12 via a valve. The bottom of the discharge hopper 12 is provided with an outlet 121, and the activated carbon in the collection hopper 11 is transferred through the bottom outlet 121 of the discharge hopper 12.

[0035] In this embodiment, the gas processor 2 mainly consists of a gas-water separator 21, a gas-water separator 22, a louvered plate 23, and a partition 24. The lower part of the gas-water separator 21 is a water storage area, with a drain outlet at the bottom and a drain valve 212 installed for discharging wastewater. The water storage area of ​​the gas-water separator 21 is divided into left and right spaces by the partition 24. The left water storage area is a clear water area, and the right water storage area is a sedimentation area. A notch is provided at the bottom of the partition 24 for water circulation between the left and right spaces. A water replenishment valve 211 is installed in the middle of the gas-water separator 21 to replenish water to the gas-water separator 21. The water replenishment valve 211 controls the water level in the storage area to the top of the partition 24. In this embodiment, the water replenishment valve 211 is an automatic water replenishment valve, installed in the left water storage area in the middle of the gas-water separator 21, to automatically replenish water to the gas-water separator 21 and prevent water shortage. The upper part of the gas-liquid separator 21 is the gas treatment area. An outlet is located at the top of the gas-liquid separator 21, and a gas-liquid separator 22 is installed thereon. The gas treatment area of ​​the gas-liquid separator 21 is divided into left and right spaces by louvers 23. The right space is for the gas to be treated, and the left space is for the treated gas. The top of the louvers 23 contacts the top of the gas-liquid separator 21, and its bottom contacts the partition 24. The inlet of the gas-liquid separator 22 is connected to the outlet of the gas-liquid separator 21, and a three-way valve 5 is installed at the outlet of the gas-liquid separator 22. One outlet of the three-way valve 5 is connected to the discharge hopper 12 pipe, and the other outlet is connected to the upper gas port 41 pipe of the adsorption tank 4. After the gas-water mixture ejected by the vacuum pump enters the gas-water separator 21, larger water droplets carrying dust fall into the lower water body, while water mist drifts with the airflow towards the outlet and condenses into water droplets upon encountering the louvered plate 23, falling into the lower water body. Dust in the water body settles at the bottom and can be easily collected and treated later through the drain outlet. The gas-water mixture after dust removal enters the gas-water separator 22 for water-gas separation. The moisture content of the gas transported in the pipeline is strictly controlled to meet the requirements of activated carbon for oil and gas recovery (generally not more than 5%).

[0036] In this embodiment, an air inlet three-way valve 6 is installed at the air inlet of the vacuum pump 3. The air inlet of the vacuum pump 3 is connected to the opening of the collection bin cover 111 and the air outlet 41 of the adsorption tank 4 through the air inlet three-way valve 6. The air outlet of the vacuum pump 3 is connected to the gas treatment area pipeline in the right space of the gas-water separator 21. In this embodiment, the vacuum pump 3 is a water ring explosion-proof vacuum pump, and the water pipe 31 of the water ring explosion-proof vacuum pump is connected to the water in the gas-water separator 21.

[0037] like Figure 2 As shown, when the waste activated carbon in the adsorption tank 4 is unloaded, the material inlet 113 in the middle of the collection bin 11 is opened and extends into the bottom of the adsorption tank 4 through a pipe. The bottom valve of the collection bin 11 is closed. The outlet of the gas-liquid separator 22 is connected to the gas outlet 41 of the adsorption tank 4 through the gas outlet three-way valve 5. The air inlet of the vacuum pump 3 is connected to the opening of the cover 111 through the air inlet three-way valve 6. The vacuum pump 3 is powered on to evacuate the collection bin 11, creating a negative pressure inside the collection bin 11. Under the action of the negative pressure in the collection bin 11, the waste activated carbon in the adsorption tank 4 is drawn into the collection bin 11 for collection. The vacuum pump 3 draws the dust and waste gas in the collection bin 11 to the gas-liquid separator 21 for dust and waste removal treatment. At the same time, the treated gas is transported to the adsorption tank 4 to pressurize the adsorption tank 4, ensuring the normal airflow speed of the material conveying pipeline and realizing the organized recycling of waste gas, reducing environmental pollution. In this embodiment, the treated gas can be directly discharged into the atmosphere during unloading. However, the gas port 41 of the adsorption tank 4 must be open to avoid the gas pressure inside the adsorption tank 4 being too low, which would result in no airflow or too little airflow in the negative pressure pipeline, thus failing to achieve the purpose of gas transport of materials.

[0038] After the waste activated carbon in the adsorption tank 4 is transferred to the collection bin 11, the bottom valve of the collection bin 11 is opened, and the waste activated carbon is unloaded into the discharge bin 12 and falls into the packaging bag below through the outlet 121. After the packaging bag is full, it is replaced and transferred by forklift.

[0039] like Figure 3 As shown, when adding activated carbon to the adsorption tank 4, the collection bin 11 is filled with new activated carbon, the middle inlet 113 of the collection bin 11 is closed, and the bottom valve of the collection bin 11 is opened, allowing the new activated carbon to flow into the discharge bin 12. The bottom outlet 121 of the discharge bin 12 is connected to the top of the adsorption tank 4 through a pipe. The outlet of the gas-liquid separator 22 is connected to the discharge bin 12 through the three-way valve 5. The air inlet of the vacuum pump 3 is connected to the air outlet 41 of the adsorption tank 4 through the three-way valve 6. When the vacuum pump 3 is powered on, it pumps air from the adsorption tank 4, creating a negative pressure inside the adsorption tank 4. Under the negative pressure of the adsorption tank 4, the new activated carbon in the discharge bin 12 is drawn into the adsorption tank 4. The vacuum pump 3 draws the dust and waste gas from the adsorption tank 4 into the gas-liquid separator 21 for dust and waste removal treatment. At the same time, the treated gas is used to pneumatically transport the new activated carbon in the discharge bin 12 and to pressurize the adsorption tank 4, ensuring the airflow speed in the material conveying pipeline.

[0040] In embodiment two, the valve at the bottom of the collection silo 11 is a star-shaped discharge valve 114. The star-shaped discharge valve 114 is a multi-disc rotary valve, capable of simultaneously locking the collection silo 11 with air and discharging material. Figure 2 As shown (only the relevant parts of the star-shaped discharge valve are described; other parts are the same as in Example 1), when the waste activated carbon in the adsorption tank 4 is discharged, the star-shaped discharge valve 114 at the bottom of the collection silo 11 operates, and the vacuum pump 3 is energized to evacuate the collection silo 11, creating a negative pressure inside the collection silo 11. Under the action of the negative pressure in the collection silo 11, the waste activated carbon in the adsorption tank 4 is drawn into the collection silo 11 and discharged into the discharge silo 12 through the star-shaped discharge valve 114. It then falls into the packaging bag below through the outlet 121, achieving continuous discharge. Figure 3 As shown (only the part related to the star-shaped discharge valve is described, the other parts are the same as in Example 1), when the activated carbon is loaded into the adsorption tank 4, the collection bin 11 is filled with new activated carbon, the star-shaped discharge valve 114 at the bottom of the collection bin 11 is operated, and the new activated carbon flows continuously and evenly into the discharge bin 12. The vacuum pump 3 is powered on to evacuate the adsorption tank 4, and a negative pressure is formed in the adsorption tank 4. The new activated carbon in the discharge bin 12 is drawn into the adsorption tank 4 under the action of the negative pressure of the adsorption tank 4.

[0041] The valve at the bottom of the collection bin 11 can also be other valve bodies that can realize the function of a star discharge valve, such as a counterweight flap valve and an automatic valve with timed action (including electric valves and pneumatic valves).

[0042] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A closed-loop activated carbon loading and unloading device, characterized in that, It mainly includes a collector (1), a gas processor (2), and a vacuum pump (3); The collector (1) is mainly composed of a collection bin (11) and a discharge bin (12). The upper cover (111) of the collection bin (11) has an opening, and the middle part has an openable material port (113). Its bottom is connected to the top of the discharge bin (12) through a valve. The bottom of the discharge bin (12) has an outlet (121). The gas processor (2) is mainly composed of a gas-water separator (21), a gas-water separator (22), a louvered plate (23), and a partition (24); the lower part of the gas-water separator (21) is a water storage area, which is divided into left and right spaces by the partition (24); the upper part of the gas-water separator (21) is a gas processing area, which is divided into left and right spaces by the louvered plate (23); the top of the gas-water separator (21) is provided with an air outlet and a gas-water separator (22) is installed; the gas-water separator (22) is connected to the upper pipes of the discharge bin (12) and the adsorption tank (4) through the three-way valve (5); The air inlet of the vacuum pump (3) is connected to the upper pipe of the collection bin cover (111) and the adsorption tank (4) through the air inlet three-way valve (6); the air outlet of the vacuum pump (3) is connected to the gas treatment area pipe of the right space of the gas-water separator (21).

2. The closed-type activated carbon loading and unloading equipment according to claim 1, characterized in that, A dust filter (112) is installed inside the cover (111) of the collector (1).

3. The closed-type activated carbon loading and unloading equipment according to claim 1, characterized in that, The cover (111) of the collector (1) is detachable.

4. The closed-type activated carbon loading and unloading equipment according to claim 1, characterized in that, A water supply valve (211) is installed in the middle of the gas-water separator (21), and the water supply valve (211) controls the water level in the water storage area at the top of the partition (24).

5. The closed activated carbon loading and unloading equipment according to claim 1, characterized in that, The top of the louvered plate (23) is in contact with the top of the gas-water separator (21), and its bottom is in contact with the partition plate (24).

6. The closed-loop activated carbon loading and unloading equipment according to claim 1, characterized in that, The bottom of the gas-water separator (21) is equipped with a bottom drain valve (212).

7. The closed-type activated carbon loading and unloading equipment according to claim 1, characterized in that, The vacuum pump (3) is a water ring explosion-proof vacuum pump, and the water pipe (31) of the water ring explosion-proof vacuum pump is connected to the water in the gas-water separator (21).

8. The closed-type activated carbon loading and unloading equipment according to claim 1, characterized in that, The valve has the function of locking the air in the collection bin and unloading material at the same time.

9. A closed activated carbon loading and unloading device according to claim 8, characterized in that, The valve is any one of a star-shaped discharge valve, a counterweight flap valve, and a timed automatic valve.

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