Activated carbon dosing system

Abstract

The utility model discloses a kind of activated carbon dosing systems, it includes the dispersion pool of wastewater, circulating water pump, jet mixer, the bunker of powder activated carbon and air drive device, jet mixer is provided with mass transfer cavity, nozzle end and diffusion pipe, the output end of air drive device is communicated bunker, the output end of bunker is communicated mass transfer cavity, the input end and output end of circulating water pump are respectively communicated dispersion pool and nozzle end, diffusion pipe is communicated dispersion pool.In the utility model, powder activated carbon is forced to be dispersed into jet carrier in movement process, and it is rapidly diffused into uniform suspension by pressure change in diffusion pipe, to transport to dispersion pool after mixing activated carbon with wastewater fully, to improve the utilization of activated carbon;In addition, activated carbon is placed in closed environment such as bunker and jet mixer, and powder activated carbon does not overflow, that is, air pollution or influence operator's respiratory system caused by activated carbon leakage does not appear.

Description

Technical Field

[0001] This utility model belongs to the field of activated carbon addition technology, and in particular relates to an activated carbon addition system. Background Technology

[0002] Activated carbon is a black solid material with well-developed pores and a carbon skeleton structure, produced through gasification. Due to its numerous pores, activated carbon has a large surface area, thus exhibiting excellent adsorption properties.

[0003] In recent years, activated carbon has been frequently used for advanced treatment of industrial wastewater to remove recalcitrant organic matter and pollutants such as color. The methods of adding activated carbon include directly adding the solid to the tank containing wastewater; or mixing the solid with water in a storage tank and then adding the mixture as a slurry. The slurry is then thoroughly mixed with the wastewater, PAC (polyacrylamide), and PAM (polyamine sulfide) to cause flocculation, allowing the recalcitrant organic matter and color in the wastewater to be adsorbed into the pores of the activated carbon. The activated carbon, PAC, and PAM form sludge flocs, which are then separated into sludge and water through sedimentation, thus achieving the goal of removing organic matter and color.

[0004] However, there are two problems with these two methods of adding activated carbon. First, activated carbon is a hydrophobic substance, and when mixed with water, it exists in the form of a suspension. This makes it difficult for activated carbon to mix fully with wastewater, thereby reducing the utilization rate of activated carbon. Second, activated carbon is lightweight, and it is easy to leak when adding chemicals or preparing mixtures. This not only causes air pollution, but also has an adverse effect on the respiratory system of operators. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this invention provides an activated carbon dosing system that can improve the utilization rate of activated carbon.

[0006] The objective of this utility model is achieved through the following technical solution: An activated carbon dosing system includes a dispersion tank containing wastewater, a circulating water pump, a jet mixer, a silo containing powdered activated carbon, and a gas-driven device. The jet mixer is provided with a mass transfer chamber, a nozzle end, and a diffuser. The output end of the gas-driven device is connected to the silo, and the output end of the silo is connected to the mass transfer chamber. The input and output ends of the circulating water pump are respectively connected to the dispersion tank and the nozzle end, and the diffuser is connected to the dispersion tank.

[0007] The beneficial effects of adopting the above technical solution are as follows: the circulating water pump outputs the wastewater in the dispersion tank to the nozzle end to form a jet carrier that enters the mass transfer chamber; the air drive device inputs compressed gas into the hopper to drive the powdered activated carbon in the hopper into the mass transfer chamber of the jet mixer and mixes it instantaneously with the jet carrier. During the movement, the powdered activated carbon is forcibly dispersed into the jet carrier and rapidly diffuses into a uniform suspension in the diffuser tube through pressure changes, so as to fully mix the activated carbon and wastewater and then transport it to the dispersion tank, thereby improving the utilization rate of activated carbon. In addition, the activated carbon is added in a closed environment such as the silo and jet mixer, so the powdered activated carbon will not spill out, which means that there will be no air pollution or impact on the operator's respiratory system due to activated carbon leakage.

[0008] Furthermore, the lower part of the dispersion tank is provided with a first discharge end for discharging wastewater.

[0009] The beneficial effects of adopting the above technical solution are: wastewater can be discharged from the first discharge end to supply the wastewater that needs to be treated.

[0010] Furthermore, a second inlet is provided in the upper middle part of the dispersion tank, and the second inlet is connected to the diffusion pipe.

[0011] Furthermore, a first discharge end is provided in the upper middle part of the dispersion tank. The first discharge end and the first inlet end are located on the same side of the dispersion tank. The first discharge end and the second inlet end are located on opposite sides of the dispersion tank. The first discharge end is connected to the input end of the circulating water pump.

[0012] The beneficial effects of adopting the above technical solution are as follows: the first discharge end is close to the first inlet end, and the circulating water pump can pump the wastewater discharged from the first inlet end to the jet mixer nearby so as to fully mix the wastewater with the activated carbon; the first discharge end and the second inlet end are located on both sides of the dispersion tank, that is, the circulating water pump is not likely to pump the already mixed suspension from the second inlet end to the jet mixer.

[0013] Furthermore, a second discharge end is provided at the bottom of the dispersion tank. The second discharge end and the second discharge inlet end are located on the same side of the dispersion tank. The second discharge end is connected to the flocculation reaction tank through a lift water pump.

[0014] The beneficial effects of adopting the above technical solution are as follows: the second discharge end is close to the second inlet end, and the lifting pump can lift the already mixed suspension entering from the second inlet end to the flocculation reaction tank nearby, so that it can achieve mud-water separation in the form of sedimentation, thereby removing the refractory organic matter and color in the wastewater.

[0015] Furthermore, the lower end of the silo is connected to the mass transfer chamber.

[0016] The beneficial effect of adopting the above technical solution is that this setting makes it easier for powdered activated carbon in the silo to enter the mass transfer chamber.

[0017] Furthermore, the activated carbon dosing system includes a weighing screw conveyor, the input end and output end of which are respectively connected to the lower end of the silo and the mass transfer chamber.

[0018] The beneficial effects of adopting the above technical solution are as follows: the powdered activated carbon in the silo is accurately weighed and added to the jet mixer by a weighing screw conveyor.

[0019] Furthermore, the air-driven device includes an air storage system and an air compressor, with the input and output ends of the air compressor connected to the air storage system and the silo, respectively.

[0020] The beneficial effects of adopting the above technical solution are: the air compressor can pressurize the air in the air storage system and supply it into the silo, which is conducive to the air-driven addition of powdered activated carbon.

[0021] Furthermore, a plow-shaped mixing device is installed at the bottom of the silo.

[0022] The beneficial effects of adopting the above technical solution are: the plow-blade stirring device can break up activated carbon agglomerates, which is conducive to the activated carbon entering the mass transfer cavity of the jet mixer.

[0023] Furthermore, a vibration arch-breaking device is installed on the silo.

[0024] The beneficial effects of adopting the above technical solution are as follows: the vibration arch breaking device can prevent the activated carbon from being obstructed due to moisture or clumping by vibration.

[0025] The beneficial effects of this utility model are as follows: The circulating water pump outputs wastewater from the dispersion tank to the nozzle end to form a jet carrier that enters the mass transfer chamber; the air drive device inputs compressed gas into the hopper to drive the powdered activated carbon in the hopper into the mass transfer chamber of the jet mixer and mixes it instantaneously with the jet carrier. During the movement, the powdered activated carbon is forcibly dispersed into the jet carrier and rapidly diffused into a uniform suspension in the diffuser tube through pressure changes, so as to fully mix the activated carbon and wastewater before transporting it to the dispersion tank, thereby improving the utilization rate of activated carbon. In addition, the activated carbon is added in a closed environment such as the silo and jet mixer, so the powdered activated carbon will not spill out, which means that there will be no air pollution or impact on the operator's respiratory system due to activated carbon leakage. Attached Figure Description

[0026] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings. Wherein: Figure 1 A system diagram of this utility model is shown; In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0027] Figure label: 1. Air-driven device; 2. Silo; 3. Jet mixer; 4. Lifting pump; 5. Dispersion tank; 6. Circulating pump. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] This invention provides an activated carbon dosing system, such as... Figure 1 As shown, it includes a dispersion tank 5 containing wastewater, a circulating water pump 6, a jet mixer 3, a silo 2 containing powdered activated carbon, and a gas drive device 1. The jet mixer 3 is equipped with a mass transfer chamber, a nozzle end, and a diffuser. The output end of the gas drive device 1 is connected to the silo 2, and the output end of the silo 2 is connected to the mass transfer chamber. The input end and output end of the circulating water pump 6 are connected to the dispersion tank 5 and the nozzle end, respectively, and the diffuser is connected to the dispersion tank 5.

[0030] Understandably, the circulating water pump 6 outputs the wastewater in the dispersion tank 5 to the nozzle end to form a jet carrier that enters the mass transfer chamber; the air drive device 1 inputs compressed gas into the hopper 2 to drive the powdered activated carbon in the hopper 2 into the mass transfer chamber of the jet mixer 3 and mixes it instantaneously with the jet carrier. During the movement, the powdered activated carbon is forcibly dispersed into the jet carrier and rapidly diffused into a uniform suspension in the diffuser tube through pressure changes, so as to fully mix the activated carbon and wastewater and then transport it to the dispersion tank 5, thereby improving the utilization rate of activated carbon. In addition, the activated carbon is added in a closed environment such as the silo 2 and the jet mixer 3, so the powdered activated carbon will not overflow, which means that there will be no air pollution or impact on the operator's respiratory system due to activated carbon leakage.

[0031] It should be noted that the jet mixer 3 can be a high-speed jet mixer. This activated carbon dosing system uses high-speed jet technology, which enhances the dispersion of powdered activated carbon and improves the efficiency of activated carbon use.

[0032] In one embodiment, the lower part of the dispersion tank 5 is provided with a first discharge end for discharging wastewater.

[0033] It is understandable that wastewater can be discharged from the first inlet to supply the wastewater that needs to be treated.

[0034] In one embodiment, a second discharge end is provided in the upper middle part of the dispersion tank 5, and the second discharge end is connected to the diffusion pipe.

[0035] In one embodiment, a first discharge end is provided in the upper middle part of the dispersion tank 5. The first discharge end and the first inlet end are located on the same side of the dispersion tank 5. The first discharge end and the second inlet end are located on opposite sides of the dispersion tank 5. The first discharge end is connected to the input end of the circulating water pump 6.

[0036] Understandably, since the first discharge end is close to the first inlet end, the circulating water pump 6 can pump the wastewater discharged from the first inlet end to the jet mixer 3 nearby, so as to fully mix the wastewater with the activated carbon. The first discharge end and the second inlet end are located on opposite sides of the dispersion tank 5, that is, the circulating water pump 6 is unlikely to pump the already mixed suspension from the second inlet end to the jet mixer 3.

[0037] In one embodiment, a second discharge end is provided at the lower part of the dispersion tank 5. The second discharge end and the second discharge inlet end are located on the same side of the dispersion tank 5. The second discharge end is connected to the flocculation reaction tank through the lifting water pump 4.

[0038] Understandably, since the second discharge end is close to the second inlet end, the lift pump 4 can lift the already mixed suspension that enters from the second inlet end to the flocculation reaction tank, so that it can achieve mud-water separation in the form of sedimentation, thereby removing the refractory organic matter and color from the wastewater.

[0039] In one embodiment, the lower end of the hopper 2 is connected to a mass transfer chamber, so that the powdered activated carbon in the hopper 2 can more easily enter the mass transfer chamber.

[0040] In one embodiment, the activated carbon dosing system includes a weighing screw conveyor, the input end and output end of which are respectively connected to the lower end of the silo 2 and the mass transfer chamber.

[0041] Understandably, the powdered activated carbon in silo 2 is precisely weighed and added to jet mixer 3 via a weighing screw conveyor.

[0042] In one embodiment, the air-driven device 1 includes an air storage system and an air compressor, with the input and output ends of the air compressor connected to the air storage system and the silo 2, respectively.

[0043] It is understandable that the air compressor can pressurize the air in the air storage system and supply it into the material silo 2 to facilitate the air-driven addition of powdered activated carbon.

[0044] In one embodiment, a plow-shaped agitator is provided at the bottom of the hopper 2.

[0045] Understandably, the plow-blade agitator can break up activated carbon agglomerates to facilitate the entry of activated carbon into the mass transfer chamber of the jet mixer 3.

[0046] In one embodiment, the silo 2 is equipped with a vibration arch-breaking device.

[0047] Understandably, the vibratory arch-breaking device can prevent the activated carbon from being obstructed due to moisture or clumping by using vibration.

[0048] It should be noted that the compressed gas in the feed hopper 2 can also form an airflow to break the arch, and the plow-shaped agitator can form a mechanical arch, so that the powdered activated carbon can be conveyed to the weighing screw conveyor and directly enter the mass transfer chamber of the jet mixer 3. In the diffuser tube at the tail of the jet mixer 3, it can be rapidly diffused into a uniform suspension through pressure changes, so that the activated carbon and wastewater can be fully mixed and then conveyed to the dispersion tank 5.

[0049] In one embodiment, the activated carbon dosing system may further include an electrical control system that can be electrically connected to components such as the circulating water pump 6, the lifting water pump 4, the weighing screw conveyor, the air compressor, the plow-type mixing device, and the vibrating arch-breaking device, so as to control the operation of these components.

[0050] In summary, this novel invention utilizes the hopper 2 to store powdered activated carbon and adds it into the jet mixer 3 via a pneumatic method. At the same time, the lower end of the hopper 2 has a weighing and precise addition function to ensure that the powdered activated carbon does not overflow. This invention employs jet injection, which allows activated carbon to be rapidly dispersed in wastewater, achieving thorough dispersion and mixing of wastewater and activated carbon, thus greatly improving the utilization rate of activated carbon.

[0051] In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0052] While specific embodiments of the present invention have been described herein with reference to them, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. An activated carbon dosing system, characterized in that, The device includes a dispersion tank (5) containing wastewater, a circulating water pump (6), a jet mixer (3), a silo (2) containing powdered activated carbon, and a gas drive device (1). The jet mixer (3) is equipped with a mass transfer chamber, a nozzle end, and a diffuser. The output end of the gas drive device (1) is connected to the silo (2), and the output end of the silo (2) is connected to the mass transfer chamber. The input end and the output end of the circulating water pump (6) are respectively connected to the dispersion tank (5) and the nozzle end. The diffuser is connected to the dispersion tank (5).

2. The activated carbon dosing system according to claim 1, characterized in that, The lower part of the dispersion tank (5) is provided with a first discharge end for discharging wastewater.

3. The activated carbon dosing system according to claim 2, characterized in that, The dispersion tank (5) is provided with a second discharge end in the upper middle part, and the second discharge end is connected to the diffusion tube.

4. The activated carbon dosing system according to claim 3, characterized in that, The dispersion tank (5) is provided with a first discharge end in the upper middle part. The first discharge end and the first inlet end are located on the same side of the dispersion tank (5). The first discharge end and the second inlet end are located on both sides of the dispersion tank (5). The first discharge end is connected to the input end of the circulating water pump (6).

5. The activated carbon dosing system according to claim 4, characterized in that, The lower part of the dispersion tank (5) is provided with a second discharge end. The second discharge end and the second discharge end are located on the same side of the dispersion tank (5). The second discharge end is connected to the flocculation reaction tank through a lifting water pump (4).

6. The activated carbon dosing system according to claim 1, characterized in that, The lower end of the hopper (2) is connected to the mass transfer chamber.

7. The activated carbon dosing system according to claim 6, characterized in that, It includes a weighing screw conveyor, the input end and output end of which are respectively connected to the lower end of the hopper (2) and the mass transfer chamber.

8. An activated carbon dosing system according to claim 1 or 6, characterized in that, The air-driven device (1) includes an air storage system and an air compressor, with the input and output ends of the air compressor connected to the air storage system and the silo (2), respectively.

9. The activated carbon dosing system according to claim 1, characterized in that, The lower part of the hopper (2) is equipped with a plow-type mixing device.

10. An activated carbon dosing system according to claim 1 or 9, characterized in that, The silo (2) is equipped with a vibration arch-breaking device.

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