CN205549973U - High -efficient dust removal, drip washing integrated device - Google Patents

Abstract

The utility model discloses an integrated device of high-efficiency dust removal and rinsing, which comprises devices such as a three-stage spray chamber and a lower circulating water tank. The exhaust gas containing smoke and dust enters the three-stage spray chamber through the intake pipe through the negative pressure of the fan. Each spray chamber is equipped with three oblique water curtain panels and observation windows, so that the spray water forms a multi-stage water curtain, and the exhaust gas The dust in the medium is fully washed and absorbed; each level of spray chamber is connected to the lower circulating water tank through the drainage trap, and the circulating water tank is equipped with a water inlet pipe, an overflow pipe, a drain pipe and a secondary clarification baffle, and the dust in the washing water circulates In the water tank, the secondary clarification baffle plate settles and recovers, and the clarified clean water is sprayed repeatedly. The utility model effectively solves the problems that common spray towers are easily blocked and dust is difficult to recover. The device has the characteristics of compact structure, small size, high absorption rate of dust removal and rinsing, small pressure loss, energy saving and environmental protection, and easy operation.

Description

A high-efficiency dust removal and rinsing integrated device

technical field

The utility model relates to a dedusting and rinsing device, in particular to a device for absorbing dust, fluorine-containing and ammonia-containing waste gas in tantalum-niobium wet smelting.

Background technique

The spray tower of the original absorption device is equipped with centrifugal pumps, nozzles, and several Pall ring filter media. The centrifugal pump is used to transport water to the nozzle, and form a mist through the nozzle, and the Pall ring filter plays the role of isolating solids, so as to prevent the clogging of the sieve plate, and achieve the purpose of dissolving exhaust gas and smoke in water.

The components of the flue gas produced during the roasting of hydroxide by the converter in our company are mainly water vapor, ammonia fluoride gas and a small amount of oxide particle dust carried away by the flue gas. The oxide dust in the flue gas must be recovered, and the harmful gas in the exhaust gas must be fully and effectively absorbed to avoid being discharged into the air in the form of gas to cause air pollution.

The disadvantages of the prior art: first, it is difficult to clean up or recover the oxide dust, which is time-consuming and labor-intensive. Second, there are blind areas in the spraying, and the spraying is not complete. Third, the leaching tower used is large in size and occupies a large area. Fourth, the supporting fans and circulating water pumps have high power and high operating power consumption.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide an integrated device for efficient dedusting and rinsing to solve the problems of incomplete spraying and absorption, time-consuming and labor-intensive cleaning and recovery of oxide dust, and high power consumption.

In order to achieve the above object, the technical scheme that the utility model adopts is:

An integrated device for high-efficiency dust removal and rinsing, including a three-stage spray room, the lower part of the three-stage spray room communicates with the circulating water tank through a drainage air trap, a clarification baffle is set in the circulating water tank, and the circulating water tank is connected to the circulating water pump. The circulating water pump is connected to the spray head device in the third-stage spraying room through the circulating water pipe, the air intake pipe is connected to the third-stage spraying room through the fan, and the third-level spraying room is connected through the air chamber connecting air pipe.

The air inlet pipe is connected to the lower part of the first-stage spray chamber, the top of the first-stage spray chamber is connected to the fan through the air inlet pipe, the lower part of the second-stage spray chamber is connected to the fan through the air outlet pipe, and the third-stage spray chamber is connected to the fan through the air outlet pipe. The lower part of the chamber is connected to the upper part of the second-stage spray chamber through the air chamber connecting air pipe, and the top of the third-stage spray chamber is provided with an exhaust pipe.

Each level of the three-stage spray chamber is provided with three oblique water curtain panels, the top is connected with the circulating water pipe with a nozzle device, and the upper side is provided with a nozzle observation window made of PE transparent board.

The bottom of each stage of the three-stage spray chamber is connected with the circulating water tank through a drain trap.

A water inlet pipe, an overflow pipe, and a drain pipe are arranged at the bottom of the side of the circulating water tank, and a secondary clarification baffle is arranged inside the circulating water tank.

The circulating water tank is connected with the circulating water pipe through the circulating water pump, and the circulating water pipe is connected with the sprinkler device.

Compared with the prior art, the beneficial effect of the utility model is: by setting the drain valve in the circulating water tank, the slurry after the smoke and dust are absorbed is discharged directly, which is easy to recycle and clean; by setting the water curtain plate, all the smoke and dust are forced to pass through the water curtain Absorption eliminates the spray blind area and solves the problem of incomplete spraying; the whole set of equipment is small in size and occupies a small area; the power of the fans and circulating water pumps used in the equipment is small, and the operating power consumption is low.

Description of drawings

Fig. 1 is the front view of the structural representation of the utility model

Fig. 2 is the side view of the structural representation of the utility model

detailed description

The purpose of the utility model is to overcome the deficiencies of the prior art and provide an integrated device for efficient dedusting and rinsing. The existing technology is to use a spray tower absorption device, which is equipped with a centrifugal water pump, a nozzle, and a number of Pall ring filter media. The centrifugal pump is used to transport water to the nozzle, and form a mist through the nozzle, and the Pall ring filter plays the role of isolating solids. , to prevent clogging the sieve plate and achieve the purpose of dissolving exhaust gas and smoke in water. In the prior art, it is difficult to clean and recover oxide dust, which is time-consuming and laborious; there are blind spots in the spraying, and the spraying is incomplete; the leaching tower used is large in size and occupies a large area; The disadvantage of high power consumption. The utility model designs a high-efficiency dedusting and rinsing integrated device, which can recover all the oxide dust in the flue gas, and fully and effectively absorb the harmful gas in the waste gas, so as to avoid air pollution caused by being discharged into the air. The device is easy to recycle and clean, has no blind area in spraying, is small in size and low in power consumption.

The following detailed explanations will be given in conjunction with the embodiments with reference to the accompanying drawings, so as to further explain the technical features and advantages of the present utility model.

The structural diagram of the utility model is shown in Figures 1 and 2. An integrated device for efficient dust removal and rinsing includes: intake pipe 1, three-stage spray chambers 2, 21, 22, drainage air trap 12, and circulating water tank 3 , clarification baffle 16, circulating water pump 4, circulating water pipe 5, sprinkler device 8, fan 13, air chamber connecting air pipe 10, exhaust pipe 11, water inlet pipe 17, drain pipe 15, overflow pipe 19, air inlet pipe 6. Observation window 7, air outlet pipe 9, flushing valve 14, water curtain plate 18, cleaning valve 20 devices.

The smoke and dust enter the spray chamber 2 through the air inlet pipe 1 through the negative pressure of the fan. The air inlet pipe 1 is covered in an inverted bucket shape on the exhaust pipe of the rotary furnace with a gap to ensure that the smoke and dust can be completely sucked into the spray chamber. At the same time, there is no negative pressure effect on the rotary furnace to avoid the loss of oxides. The air inlet pipe 1 is connected to the lower part of the first-stage spray chamber 2, and the top of the first-stage spray chamber 2 is connected to the fan 13 through the air inlet pipe 6, and the elbow part of the air inlet pipe 6 is provided with a flushing valve 14, which is convenient when it is blocked. Rinse with water.

The lower part of the second-stage spray chamber 21 is connected to the fan 13 through the air outlet pipe 9, and the lower part of the third-stage spray chamber 22 is connected to the upper part of the second-stage spray chamber 21 through the air chamber connection duct 10, and the third-stage spray chamber 22 tops are provided with exhaust pipe 11. A cleaning valve 20 is arranged on the fan 13, and some salts form crystals on the impeller of the fan, causing the impeller to be unbalanced and causing the fan to vibrate, which is convenient for cleaning with water.

Each of the three-stage spray chambers 2, 21, and 22 is provided with three oblique water curtain panels 18, the top of which is provided with a sprinkler device 8 and is connected to the circulating water pipe 5, and each side of the upper part is provided with a transparent plate made of PE. The shower nozzle observation window 7 that is formed is convenient to observe the spraying situation, and cleans the shower nozzle when necessary to ensure the spraying effect. The bottom of each spray chamber is connected with the circulating water tank 3 through the drainage air trap 12 .

The upper side of the circulating water tank 3 is provided with a water inlet pipe 17 to facilitate water replenishment, the overflow pipe 19 is full of water and automatically overflows, and the bottom of the side is provided with a drain pipe 15 to facilitate the discharge of the slurry after rinsing, and a secondary clarification baffle is arranged inside the circulating water tank 3 16 Make the circulating water fully clarified. The circulating water tank 3 is connected to the circulating water pipe 5 through the circulating water pump 4 , and the circulating water pipe 5 is connected to the nozzle device 8 .

The spray head device 8 is supplied with water through the circulating water pipe 5 to form water mist, and when the water mist passes through the water curtain plate 18, a water curtain is formed to force dust removal, rinsing and absorption of smoke and dust. After rinsing, the feed liquid reaches the circulating water tank 3 through the drainage air trap 12.

The utility model is clearly and completely described through the technical solutions in the above embodiments, and it is obvious that the described embodiments are a part of the embodiments of the utility model, rather than all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the utility model.

Claims (6)

1. A high-efficiency dust removal, leaching and washing integrated device, including three-stage spray chambers (2, 21, 22), the lower part of the three-stage spray chambers (2, 21, 22) is connected to the circulating water tank through the drainage trap (12) (3) is internally connected, and the clarification baffle (16) is set in the circulating water tank (3), the circulating water tank (3) is connected with the circulating water pump (4), and the circulating water pump (4) is connected to the spraying tank through the circulating water pipe (5) The nozzle device (8) in the chamber (2,21,22), the air inlet pipe (1) is connected to the three-stage spray chamber (2,21,22) by the blower fan (13), and the three-stage spray chamber (2,21 , 22) connect the air duct (10) through the air chamber. 2. The high-efficiency dust removal and rinsing integrated device according to claim 1, characterized in that: the air inlet pipe (1) is connected to the lower part of the first-stage spray chamber (2), and the first-stage spray chamber ( 2) The top is connected to the fan (13) through the air inlet pipe (6), the lower part of the second-stage spray chamber (21) is connected to the fan (13) through the air outlet pipe (9), and the third-stage spray chamber (22) The lower part is connected with the upper part of the second-stage spray chamber (21) through the air chamber connection air pipe (10), and the top of the third-stage spray chamber (22) is provided with an exhaust pipe (11). 3. The high-efficiency dust removal and rinsing integrated device according to claim 2, characterized in that: each stage of the three-stage spray chamber (2, 21, 22) is provided with three inclined water curtain plates (18 ) and nozzle device (8), three-stage spray chamber (2, 21, 22) upper side respectively is provided with a nozzle observation window (7) made of PE transparent plate. 4. The high-efficiency dust removal and rinsing integrated device according to claim 3, characterized in that: the three-stage spray chamber (2, 21, 22) is connected to the lower circulating water tank (3) through the drainage trap (12) connected. 5. The high-efficiency dust removal and rinsing integrated device according to claim 4, characterized in that: the circulating water tank (3) is provided with a water inlet pipe (17), an overflow pipe (19) above the side, and a drainage pipe at the bottom of the side Pipe (15), the inside of circulating water tank (3) is provided with secondary clarification spoiler (16). 6. The high-efficiency dust removal and rinsing integrated device according to claim 5, characterized in that: the circulating water tank (3) is connected to the circulating water pipe (5) through the circulating water pump (4), and the circulating water pipe (5) is connected to the nozzle device (8).