Cooling and dust removing device for smelting mixed flue gas

Abstract

The utility model relates to the technical field of smelting flue gas cooling and dust removing equipment, in particular to a smelting mixed flue gas cooling and dust removing device. According to the technical scheme, the device comprises a spray tower and further comprises a pair of water storage tanks installed on the spray tower, and a precipitation mechanism used for purifying water discharged from the spray tower is arranged in each water storage tank and connected with the spray tower through a conveying mechanism. According to the utility model, the water storage tank, the precipitation mechanism, the conveying mechanism, the switching mechanism and other structures are matched, so that impurities in water recycled by the spray tower are few, the interface mass transfer resistance can be reduced, the mass transfer process between gas and water is smoother and more efficient, the adsorption and washing effects of pollutants in waste gas are facilitated, and the service life of the spray tower is prolonged. Therefore, the treatment efficiency is improved. Meanwhile, excessive impurities in water can be prevented from blocking the nozzle and a pipeline, so that the nozzle is kept smooth, uniform spraying is ensured, and the spraying effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of smelting flue gas cooling and dust removal equipment, in particular to a smelting mixed flue gas cooling and dust removal device. Background Art

[0002] At present, a large amount of waste gas is generated in industrial production processes such as smelting, which contains harmful substances such as solid particles and gaseous pollutants. Cooling and dust removal is an important measure to deal with solid particles in industrial flue gas, which can effectively reduce pollutants discharged during the smelting process and protect the environment and human health. At present, some flue gas cooling and dust removal devices usually use equipment such as spray towers to cool the flue gas. Spray towers are a common flue gas treatment equipment that uses evaporation and cooling effects to reduce the temperature of flue gas by spraying water or other liquids in the flue gas. But usually, a water tank is provided on the spray tower to store recycled water. This water spray system can send water back to the tower through a circulating pump for recycling. However, with the circulation, solid particles, chemicals and microorganisms will accumulate in the water, resulting in deterioration of water quality, so that impurities in the water will affect the treatment effect of the spray tower. Utility Model Content

[0003] The utility model aims to solve the problems existing in the background technology and proposes a smelting mixed flue gas cooling and dust removal device.

[0004] The technical solution of the utility model: a smelting mixed flue gas cooling and dust removal device, including a spray tower, and also includes: a pair of water storage tanks installed on the spray tower, the interior of the water storage tank is provided with a sedimentation mechanism for purifying water discharged from the spray tower, the sedimentation mechanism is connected to the spray tower through a conveying mechanism; a switch mechanism, so that the pair of water storage tanks are staggered for use by the spray tower to reduce impurities in the water in the water storage tanks.

[0005] Optionally, the sedimentation mechanism includes a pair of water tanks, each of which is provided with a water inlet and a water outlet, and the inner bottom wall of the water tank is paved with an adsorption bottom blanket for adsorbing impurities, sediments and particulate matter in the water in the water tank; the water outlet is located inside the water tank and is fixedly connected to a guide block; the water inlet is located inside the water tank and is fixedly connected to a funnel cover, and one end of the funnel cover is fixedly connected to a suction pipe.

[0006] Optionally, the conveying includes a support frame connected to the spray tower, a circulating pump is fixedly connected to the top of the support frame, a water delivery port and a water suction pipe are provided at one end of the circulating pump, a water delivery pipe is provided on the spray tower directly below the water suction pipe, and the same ends of the water suction pipe and the water delivery pipe are fixedly connected with a first branch pipe and a second branch pipe.

[0007] Optionally, the switch mechanism includes a valve handle connected to the first branch pipe and the second branch pipe, and a connecting rod is provided at the ends of the valve handles on each pair of the first branch pipe and the second branch pipe corresponding to each other.

[0008] Optionally, the spray tower is provided with a water spray system connected to the top of the water delivery port, and a dust removal device is installed next to the spray tower.

[0009] Optionally, a pair of adjacent outer walls of the water tank are fixedly connected with a plurality of upper and lower corresponding connecting blocks.

[0010] Optionally, a notch is provided on one side of the water tank away from the connecting block for taking out the adsorption bottom blanket in the water tank.

[0011] Optionally, the bottom of the water tank is fixedly connected to a base for support.

[0012] Compared with the prior art, the utility model has the following beneficial technical effects:

[0013] The utility model utilizes the coordination of structures such as a water storage tank, a sedimentation mechanism, a conveying mechanism, and a switch mechanism to reduce impurities in the water circulated by the spray tower, which can not only reduce the interface mass transfer resistance, but also make the mass transfer process between gas and water smoother and more efficient, which is beneficial to the adsorption and washing effect of pollutants in the exhaust gas, thereby improving the treatment efficiency. At the same time, it can also prevent excessive impurities in the water from clogging the nozzle and the pipeline, thereby keeping the nozzle unobstructed, ensuring uniform spraying, and improving the spraying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic structural diagram of a smelting mixed flue gas cooling and dust removal device is provided in the utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of some structures;

[0016] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0017] Figure 4 for Figure 1 A schematic diagram of the structure of a pair of water storage tanks;

[0018] Figure 5 for Figure 4 Schematic diagram of the connection structure between the middle funnel cover and the suction pipe.

[0019] Figure numerals: 1. Spray tower; 11. Support frame; 12. Circulation pump; 13. Water inlet; 14. Suction pipe; 15. Water pipe; 16. First branch pipe; 17. Second branch pipe; 18. Valve handle; 19. Connecting rod; 2. Dust removal equipment; 3. Water storage tank; 31. Water inlet; 32. Water outlet; 33. Adsorption bottom blanket; 34. Guide block; 35. Funnel cover; 36. Suction pipe; 37. Connecting block; 38. Base; 39. Notch; 4. Water spray system. DETAILED DESCRIPTION

[0020] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0021] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0022] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0023] 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 limiting 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.

[0024] It should be noted that the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Example

[0027] like Figure 1-5 As shown, the utility model proposes a smelting mixed flue gas cooling and dust removal device, including a spray tower 1, a water spray system 4 connected to the top of the water inlet 13 is provided on the spray tower 1, and a dust removal device 2 is installed next to the spray tower 1. The dust removal device 2 is an electrostatic precipitator, and the electrostatic precipitator is a device that uses the principle of static electricity to remove particulate matter in the gas. It is usually composed of a dust collecting plate with an electric charge and a discharge electrode with an opposite charge. When the flue gas with particulate matter passes through the electrostatic field, the particulate matter will be adsorbed on the dust collecting plate by the electric field force, thereby achieving the effect of dust removal. It also includes: a pair of water storage tanks 3 installed on the spray tower 1, the bottom of the water storage tank 3 is fixedly connected to a base 38 for support, and the outer walls close to the pair of water storage tanks 3 are fixedly connected to a plurality of upper and lower corresponding connecting blocks 37, and the function of the connecting blocks 37 is to connect and fix the pair of water storage tanks 3 together. The water tank 3 is provided with a notch 39 on one side away from the connection block 37 for taking out the adsorption bottom blanket 33 in the water tank 3. The notch 39 is used to make it more convenient and labor-saving for the user to take out the adsorption bottom blanket 33 in the water tank 3. The water tank 3 is provided with a sedimentation mechanism for purifying the water discharged from the spray tower 1. The sedimentation mechanism is connected to the spray tower 1 through a conveying mechanism; a switch mechanism is used to stagger a pair of water tanks 3 for use by the spray tower 1 to reduce impurities in the water in the water tank 3.

[0028] Furthermore, the sedimentation mechanism includes a pair of water tanks 3, the interior of which is provided with a water inlet 31 and a water outlet 32, and the inner bottom wall of the water tank 3 is paved with an adsorption bottom blanket 33 for adsorbing the impurities in the water tank 3, the sediment and particulate matter in the water, the adsorption bottom blanket 33 is usually a fibrous or porous material, has a large specific surface area and adsorption capacity, and can effectively capture and adsorb particulate matter, sediment and other impurities in the water. The adsorption bottom blanket 33 can also prevent impurities from being suspended in the water again, and improve the transparency and purity of the water quality, while protecting the system equipment from being corroded by impurities. The water outlet 32 ​​is located inside the water tank 3 and is fixedly connected to a guide block 34, the function of which is to allow the water at the water outlet 32 ​​to flow directly to the bottom of the water tank 3 after being guided by the guide block 34. The water inlet 31 is located inside the water tank 3 and is fixedly connected to a funnel cover 35, and one end of the funnel cover 35 is fixedly connected to a water suction pipe 36.

[0029] The conveying includes a support frame 11 connected to the spray tower 1, and a circulating pump 12 is fixedly connected to the top of the support frame 11. The circulating pump 12 is a pump for circulating water or other liquids. The circulating pump 12 extracts water from one place through mechanical operation, and then transports it to the required place again to achieve the recycling of water. A water delivery port 13 and a water pumping pipe 14 are provided at one end of the circulating pump 12. A water delivery pipe 15 is provided on the spray tower 1 just below the water pumping pipe 14. The same ends of the water pumping pipe 14 and the water delivery pipe 15 are fixedly connected with a first branch pipe 16 and a second branch pipe 17.

[0030] Furthermore, the switch mechanism includes a valve handle 18 connected to the first branch pipe 16 and the second branch pipe 17. A valve is a device for controlling the flow of fluid, usually installed on a pipe or equipment. The valve handle 18 is a handle or operating device installed on the valve for controlling the opening or closing of the valve. A connecting rod 19 is provided at the end of the valve handle 18 on each pair of first branch pipes 16 and second branch pipes 17 corresponding to each other. The function of the connecting rod 19 is to simultaneously control the opening and closing of the first branch pipe 16 and second branch pipe 17 opposite to each other.

[0031] In this embodiment, when it is necessary to use a smelting mixed flue gas cooling and dust removal device, such as Figure 1As shown, after the spray tower 1 is in operation, suction is generated through the water pump 14 at the end of the circulating pump 12. At this time, the water pump 14 sucks water to the water delivery port 13 through the opened first branch pipe 16, and then through the funnel cover 35 and the water suction pipe 36 connected to the water inlet 31, and then transports it to the spray system 4 on the spray tower 1 for cooling the mixed flue gas in the spray tower 1. Then the waste water used in the spray tower 1 will pass through the water delivery pipe 15 at the bottom of the spray tower 1, and then be transported to the water outlet 32 ​​on the water storage tank 3 through the opened first branch pipe 16, and finally flow into the inside of the water storage tank 3 through the guide block 34. When the water circulating in the water storage tank 3 becomes too turbid, it is only necessary to close the first branch pipe 16 connecting the water pump 14 and the water delivery pipe 15 with the connecting rod 19, and at the same time, use the connecting rod 19 to open the second branch pipe 17 connecting the water pump 14 and the water delivery pipe 15, and perform the same operation as described above, which will not be repeated here. When the water in one of the water tanks 3 becomes turbid, the other one can be replaced. When the other water tank 3 is not in use, the water in it can be allowed to settle. At the same time, the adsorption bottom blanket 33 provided on the bottom wall of the water tank 3 will adsorb the impurities precipitated in the water. Finally, you can bend down and take out the adsorption bottom blanket 33 in the water tank 3 by hand through the notch 39 on the water tank 3 for replacement or cleaning, which is convenient and quick.

[0032] The preferred embodiments of the utility model of the above utility model are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A smelting mixed flue gas cooling and dust removal device, comprising a spray tower (1), characterized in that: Also includes: A pair of water storage tanks (3) installed on the spray tower (1), wherein a sedimentation mechanism for purifying water discharged from the spray tower (1) is provided inside the water storage tank (3), and the sedimentation mechanism is connected to the spray tower (1) via a conveying mechanism; The switch mechanism is used to stagger the pair of water storage tanks (3) for use by the spray tower (1) to reduce impurities in the water in the water storage tanks (3).

2. The device for cooling and dust removal of smelting mixed flue gas according to claim 1 is characterized in that: The sedimentation mechanism comprises a pair of water storage tanks (3), the water storage tanks (3) are provided with a water inlet (31) and a water outlet (32) inside, the inner bottom wall of the water storage tank (3) is paved with an adsorption bottom blanket (33) for adsorbing impurities in the water storage tank (3) and sediments and particulate matter in the water, the water outlet (32) is located inside the water storage tank (3) and is fixedly connected to a guide block (34), the water inlet (31) is located inside the water storage tank (3) and is fixedly connected to a funnel cover (35), and one end of the funnel cover (35) is fixedly connected to a water suction pipe (36).

3. The device for cooling and dust removal of smelting mixed flue gas according to claim 1 is characterized in that: The conveying comprises a support frame (11) connected to the spray tower (1), the top of the support frame (11) is fixedly connected to a circulation pump (12), one end of the circulation pump (12) is provided with a water delivery port (13) and a water extraction pipe (14), a water delivery pipe (15) is provided on the spray tower (1) directly below the water extraction pipe (14), and the same ends of the water extraction pipe (14) and the water delivery pipe (15) are fixedly connected to a first branch pipe (16) and a second branch pipe (17).

4. The device for cooling and dust removal of smelting mixed flue gas according to claim 1 is characterized in that: The switch mechanism comprises a valve handle (18) connected to a first branch pipe (16) and a second branch pipe (17), and a connecting rod (19) is provided at the end of each pair of valve handles (18) on the first branch pipe (16) and the second branch pipe (17) corresponding to each other.

5. The device for cooling and dust removal of smelting mixed flue gas according to claim 1 is characterized in that: The spray tower (1) is provided with a water spray system (4) connected to the top of the water delivery port (13), and a dust removal device (2) is installed next to the spray tower (1).

6. The device for cooling and dust removal of smelting mixed flue gas according to claim 1, characterized in that: A plurality of upper and lower corresponding connection blocks (37) are fixedly connected to the adjacent outer walls of a pair of water storage tanks (3).

7. The device for cooling and dust removal of smelting mixed flue gas according to claim 1 is characterized in that: A notch (39) for taking out the adsorption bottom blanket (33) in the water storage tank (3) is provided on one side of the water storage tank (3) away from the connection block (37).

8. The device for cooling and dust removal of smelting mixed flue gas according to claim 1, characterized in that: The bottom of the water storage tank (3) is fixedly connected to a base (38) for support.

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