Wet-type purification tower device for lampblack treatment

Abstract

The utility model provides a wet-type purification tower device for lampblack treatment, which relates to the technical field of lampblack treatment and comprises a tower body, a chimney and a venturi spray mixer, a circulating water tank is arranged at the bottom of the tower body, and a water pump is arranged on one side, close to the tower body, of the top of the circulating water tank. According to the design, dust-containing gas can enter the Venturi spraying mixer through the flue, after the dust-containing gas is mixed with water, the dust-containing gas is accelerated by the Venturi section to be fully mixed in a spraying mode and enters the tower body, the water and the gas are separated in the tower body, and the dust-containing gas is discharged out of the tower body. Clean gas is discharged through the top fan, dust-containing water flows into the circulating water tank through double filtration, and according to the design, the multi-stage treatment effect is achieved, the maintenance period is prolonged, operation is stable, pollution is low, pollutants generated in the operation process are well solved, and the problem of secondary pollution is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil fume treatment, in particular to a wet purification tower device for oil fume treatment. Background Art

[0002] A large amount of dusty flue gas will be generated during industrial production. For example, oil fume will be generated during heat treatment, surface spraying, painting and other processing processes, or oil fume will be generated during rubber refining and vulcanization in the rubber industry; or oil fume will be generated during plastic heat treatment such as injection molding and blow molding. Therefore, some oil fume treatment devices are needed to treat and purify these oil fumes to meet the emission standards stipulated by the state, reduce the impact on the environment, and improve air quality.

[0003] Existing oil fume purification usually adopts three high-efficiency oil fume treatment methods, namely low-temperature plasma, multi-stage wire mesh, and activated carbon adsorption. Low-temperature plasma has a high one-time investment and is not suitable for treating high-concentration gases. Multi-stage wire mesh + activated carbon adsorption requires regular replacement of activated carbon and has high operating costs. Therefore, the utility model provides a wet purification tower device for oil fume treatment. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a wet purification tower device for oil fume treatment, which solves the problems raised by the above-mentioned background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: A wet purification tower device for oil fume treatment, comprising a tower body, and also comprising a chimney connected to the lower part of the tower body, wherein an observation window is installed on the chimney;

[0006] A Venturi spray mixer is installed between the chimney and the tower body, a circulating water tank for recycling and filtering the liquid separated by the tower body is arranged at the bottom of the tower body, and a water pump is arranged at the top of the circulating water tank near the tower body;

[0007] The injection end of the Venturi spray mixer extends to the inner lower end of the tower body. A drainage funnel is provided at the inner bottom end of the tower body. The bottom end of the drainage funnel extends to the inner upper end of the circulating water tank through a drainage pipe.

[0008] As a further technical solution of the utility model, a filter plate is provided in the inner middle section of the circulating water tank, and a maintenance door is sealed and hinged on the outer side of the circulating water tank. A wire mesh filter is installed at one end of the drainage pipe extending from the drainage funnel to the inside of the circulating water tank, and the wire mesh filter is located above the filter plate.

[0009] As a further technical solution of the utility model, an activated carbon adsorption plate is installed at the upper end of the interior of the tower body, and a fan is arranged inside the tower body above the activated carbon adsorption plate, and the air outlet end of the fan is connected to a smoke outlet extending to the outside of the tower body.

[0010] As a further technical solution of the utility model, the water inlet end of the water pump extends through a pipe to the interior of the circulating water tank and is located at the lower end of the filter plate, and the water outlet end of the water pump is connected to one end of the Venturi spray mixer through a pipe, and the air inlet end of the Venturi spray mixer is connected to the chimney.

[0011] As a further technical solution of the utility model, the wire mesh filter is threadedly connected to the drainage pipe at the bottom of the drainage funnel or connected by bolts, the filter plate is detachable, and an inspection door is also provided on the top of the tower body corresponding to the activated carbon adsorption plate.

[0012] As a further technical solution of the utility model, an overflow pipe is arranged at the upper end of the side of the circulating water tank, and a sewage pipe is arranged at the bottom of the circulating water tank, and control valves are arranged on the overflow pipe and the sewage pipe.

[0013] The utility model provides a wet purification tower device for oil fume treatment, which has the following beneficial effects compared with the prior art:

[0014] The wet purification tower device designed for oil fume treatment can allow the dust-containing gas to enter the Venturi spray mixer through the flue, mix with water, and then accelerate through the Venturi section to be fully mixed in a jet shape and enter the tower body, where the water and gas are separated, and the clean gas is discharged through the top fan into the chimney or the next treatment process, and the dust-containing water flows through the drainage funnel into the circulating water tank, and in the process of entering the circulating water tank, the dust-containing water flow is double filtered to improve the recovery effect of the dust-containing water flow. The design has a multi-stage treatment effect, extends the maintenance cycle, and has stable operation and low pollution. It properly solves the pollutants generated during operation and avoids the problem of secondary pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a wet purification tower device for oil fume treatment;

[0016] Figure 2 The figure is a schematic diagram of the internal structure of a wet purification tower device for oil fume treatment.

[0017] In the figure: 1. circulating water tank; 11. filter plate; 12. wire mesh filter; 2. tower body; 21. drainage funnel; 23. activated carbon adsorption plate; 24. fan; 3. water pump; 4. chimney; 5. observation window; 6. venturi spray mixer; 7. flue gas outlet; 8. inspection door. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-2 The utility model provides a technical solution of a wet purification tower device for oil fume treatment: a wet purification tower device for oil fume treatment, comprising a tower body 2, and also comprising a chimney 4 connected to the lower part of the tower body 2, an observation window 5 is installed on the chimney 4, a venturi spray mixer 6 is installed between the chimney 4 and the tower body 2, a water pump 3 is arranged at the top of the circulating water tank 1 near the side of the tower body 2, the water inlet end of the water pump 3 extends to the inside of the circulating water tank 1 through a pipeline and is located at the lower end of the filter plate 11, and the water outlet end of the water pump 3 is connected to one end of the venturi spray mixer 6 through a pipeline, and the venturi spray mixer 6 is connected to the lower end of the filter plate 11. The air inlet end of the device 6 is connected with the chimney 4. When the flue gas enters the Venturi spray mixer 6, the filtered water inside the circulating water tank 1 is pumped out to the Venturi spray mixer 6 by the water pump 3 to spray and mix the smoke. The water mixed with the smoke passes through the Venturi section of the Venturi spray mixer 6, which will further accelerate the mixing, and then enters the tower body 2 for separation. The separated water falls into the circulating water tank 1 through the drainage funnel 21, and the clean gas is discharged from the flue gas outlet 7. It should be added that the purification tower is also equipped with electronic control equipment, which is mainly for the power supply and control of equipment such as the water pump 3 and the fan 24.

[0020] A circulating water tank 1 for recovering and filtering the liquid separated by the tower body 2 is arranged at the bottom of the tower body 2, a filter plate 11 is arranged in the middle section of the circulating water tank 1, and an inspection door 8 is sealed and hinged on the outer side of the circulating water tank 1, the injection end of the venturi spray mixer 6 extends to the lower end of the interior of the tower body 2, a drainage funnel 21 is arranged at the bottom end of the interior of the tower body 2, the bottom end of the drainage funnel 21 extends to the upper end of the interior of the circulating water tank 1 through a drainage pipe, and a wire mesh filter 12 is installed at one end of the drainage pipe extending from the drainage funnel 21 to the interior of the circulating water tank 1, the wire mesh filter 12 is located above the filter plate 11, and the wire mesh filter 12 is threadedly connected to the drainage pipe at the bottom of the drainage funnel 21 or connected by bolts The filter plate 11 is detachable. When the separated water falls into the circulating water tank 1 from the drainage funnel 21, it will be initially filtered through the wire mesh filter 12, and then fall onto the filter plate 11 for secondary filtration. The filtered water falls into the circulating water tank 1, and an overflow pipe is provided at the upper end of the side of the circulating water tank 1, and a sewage pipe is provided at the bottom of the circulating water tank 1. Control valves are provided on the overflow pipe and the sewage pipe. The oil or impurities floating on the filter plate 11 inside the circulating water tank 1 can also be overflowed and discharged through the overflow pipe. The sewage pipe at the bottom can discharge the dirt settled at the bottom of the circulating water tank 1, and it is also convenient to regularly clean the dirt at the bottom of the circulating water tank 1 and change the water regularly.

[0021] An activated carbon adsorption plate 23 is installed at the upper end of the tower body 2, and a fan 24 is arranged inside the tower body 2 above the activated carbon adsorption plate 23. The air outlet end of the fan 24 is connected to a flue gas outlet 7 extending to the outside of the tower body 2. An inspection door 8 is also arranged at the top of the tower body 2 corresponding to the activated carbon adsorption plate 23. The gas separated inside the tower body 2 rises through the action of the fan 24, and after the dust and dirt in the gas are adsorbed again by the activated carbon adsorption plate 23, the clean gas is discharged from the outside of the tower body 2 through the flue gas outlet 7. The clean gas can be discharged into the chimney again or transported to a downstream treatment process.

[0022] The working principle of the utility model is as follows: when in use, the smoke in the chimney 4 will enter the Venturi spray mixer 6, and at the same time, the water pump 3 will pump the filtered water in the circulating water tank 1 into the Venturi spray mixer 6 to spray and mix the smoke and dust. The water mixed with the smoke and dust will pass through the Venturi section of the Venturi spray mixer 6 to further accelerate the mixing, and then enter the tower body 2 for separation;

[0023] When the separated water falls into the circulating water tank 1 from the drainage funnel 21, it is initially filtered through the wire mesh filter 12, and then falls onto the filter plate 11 for secondary filtration. If the water contains oil, the overflow pipe can be opened to discharge the oil floating on the water surface into the circulating water tank 1;

[0024] The separated gas rises inside the tower body 2 through the action of the fan 24, and after the dust and dirt in the gas are adsorbed by the activated carbon adsorption plate 23, the clean gas is discharged from the outside of the tower body 2 through the flue gas outlet 7;

[0025] During maintenance, the inside of the circulating water tank 1 can be cleaned through the maintenance door 8 on the side of the circulating water tank 1, or the wire mesh filter 12 and the filter plate 11 can be cleaned and replaced. In addition, the activated carbon adsorption plate 23 can be replaced and cleaned using the maintenance door on the tower body 2;

[0026] This design has stable operation, low cost and high smoke treatment effect. It is particularly used in paint mist filtration such as heat treatment, surface spraying, and painting; oil fume filtration in rubber industry such as rubber refining and vulcanization; oil fume filtration in plastic heat treatment processes such as injection molding and blow molding.

[0027] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A wet purification tower device for oil fume treatment, comprising a tower body (2), characterized in that: It also includes a chimney (4) connected to the lower part of the tower body (2), and an observation window (5) is installed on the chimney (4); A Venturi spray mixer (6) is installed between the chimney (4) and the tower body (2); a circulating water tank (1) for recovering and filtering liquid separated by the tower body (2) is arranged at the bottom of the tower body (2); and a water pump (3) is arranged at the top of the circulating water tank (1) on one side close to the tower body (2); The injection end of the Venturi spray mixer (6) extends to the inner lower end of the tower body (2), and a drainage funnel (21) is provided at the inner bottom end of the tower body (2). The bottom end of the drainage funnel (21) extends to the inner upper end of the circulating water tank (1) through a drainage pipe.

2. A wet purification tower device for oil fume treatment according to claim 1, characterized in that: A filter plate (11) is provided in the middle section of the circulating water tank (1), and an inspection door (8) is sealed and hingedly connected to the outer side of the circulating water tank (1). A wire mesh filter (12) is installed at one end of the drainage pipe extending from the drainage funnel (21) to the inside of the circulating water tank (1), and the wire mesh filter (12) is located above the filter plate (11).

3. A wet purification tower device for oil fume treatment according to claim 1, characterized in that: An activated carbon adsorption plate (23) is installed at the upper end of the tower body (2), and a fan (24) is arranged above the activated carbon adsorption plate (23) inside the tower body (2), and the air outlet end of the fan (24) is connected to a smoke outlet (7) extending to the outside of the tower body (2).

4. A wet purification tower device for oil fume treatment according to claim 1, characterized in that: The water inlet end of the water pump (3) extends through a pipeline to the interior of the circulating water tank (1) and is located at the lower end of the filter plate (11), and the water outlet end of the water pump (3) is connected to one end of the Venturi spray mixer (6) through a pipeline, and the air inlet end of the Venturi spray mixer (6) is connected to the chimney (4).

5. A wet purification tower device for oil fume treatment according to claim 2, characterized in that: The wire mesh filter (12) is threadedly connected to the drainage pipe at the bottom of the drainage funnel (21) or connected by bolts. The filter plate (11) is detachable. An inspection door (8) is also provided at the top of the tower body (2) corresponding to the activated carbon adsorption plate (23).

6. A wet purification tower device for oil fume treatment according to claim 1, characterized in that: An overflow pipe is provided at the upper end of the side of the circulating water tank (1), and a sewage pipe is provided at the bottom of the circulating water tank (1), and control valves are provided on both the overflow pipe and the sewage pipe.

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