Circulating spraying dust removal device

Abstract

The utility model provides a circulating spraying dust removal device which comprises a shell, an air inlet hole is formed in the top of the shell, a spraying cavity communicated with the air inlet hole is formed in the shell, a water storage bin communicated with the spraying cavity is arranged at the bottom of the shell, and a circulating spraying assembly is arranged between the water storage bin and the spraying cavity. A dust removal cavity communicated with the spraying cavity is formed in the shell, a dust removal bin communicated with the dust removal cavity is arranged on the side wall of the shell, and air outlet holes are formed in the side wall of the dust removal bin. The device has the advantage of dedusting the flue gas.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler flue gas dust removal, in particular to a circulating spray dust removal device. Background Art

[0002] A boiler is an energy conversion device. The energy input into the boiler includes chemical energy and electrical energy in the fuel. The boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. When in use, the flue gas generated by the boiler needs to undergo a series of purification treatments before it can be discharged.

[0003] The existing device, such as the invention patent with announcement number CN104785027B and name "A bag dust removal device", includes a dust collector box, an air outlet is provided on one side of the upper end of the dust collector box, an air inlet is provided on one side of the lower end of the dust collector box, and a dust removal cavity is provided inside the dust collector box; an ash hopper is provided in the lower half of the dust removal cavity, and a dust removal bag is provided in the upper half of the dust removal cavity; the ash hopper is open at both ends; the ash hopper is provided with a sedimentation chamber with a small upper and large lower structure, an expansion chamber with a large upper and small lower structure, and an ash discharge chamber with a large upper and small lower structure; the sedimentation chamber is arranged at the lower end of the expansion chamber, and the ash discharge chamber is arranged at the lower end of the sedimentation chamber; the middle part of the sedimentation chamber is communicated with the air inlet.

[0004] When the device is actually used, if the incoming flue gas contains acidic gases, it will corrode the bags and shorten their service life; if the flue gas contains larger particles, they will clog the bags and be difficult to remove, affecting their dust removal effect. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a circulating spray dust removal device for solving the technical problems of the short service life and low dust removal effect of the existing bag dust removal device.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A circulating spray dust removal device comprises a shell, characterized in that: an air inlet is provided at the top of the shell, a spray chamber connected to the air inlet is provided in the shell, a water storage tank connected to the spray chamber is provided at the bottom of the shell, a circulating spray assembly is provided between the water storage tank and the spray chamber, a dust removal chamber connected to the spray chamber is provided in the shell, a dust removal chamber connected to the dust removal chamber is provided on the side wall of the shell, and an air outlet is provided on the side wall of the dust removal chamber.

[0008] Working principle:

[0009] This device is a circulating spray dust removal device, which is mainly used for filtering and dust removal of flue gas generated by boilers.

[0010] When in use, the smoke first enters the shell through the air inlet. At this time, the circulating spray component in the spray chamber sprays the incoming smoke, causing some particles to settle and enter the water storage tank. The water in the water storage tank is further filtered and absorbed and sprayed through the circulating spray component.

[0011] The flue gas passing through the spray chamber will enter the dust removal chamber, absorb part of the water vapor through the dust removal chamber and adsorb the particles in the flue gas.

[0012] The smoke passing through the dust removal chamber enters the dust removal bin, and is further filtered by the dust removal bin before being discharged from the air outlet.

[0013] Beneficial effects obtained:

[0014] First, a circulating spraying assembly is provided, which can effectively spray the smoke entering the shell, and filter the water in the water storage tank for re-spraying to achieve recycling.

[0015] Second, it is equipped with a dust removal chamber, which can effectively filter the incoming flue gas and absorb large and small particles in the flue gas to improve the overall dust removal effect.

[0016] Third, a dust removal bin is provided, which can effectively further remove dust from the flue gas through the dust removal bin, further improving the dust removal effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic cross-sectional diagram of the overall structure of an embodiment of the utility model;

[0018] Figure 2 It is a side view of an embodiment of the utility model;

[0019] Figure 3 Schematic diagram of the internal cross-section of the filter element.

[0020] In the above drawings: 1. Shell; 2. Air inlet; 3. Spray chamber; 4. Water storage tank; 5. Dust removal chamber; 6. Dust removal tank; 7. Air outlet; 8. Circulating water pump; 10. Nozzle; 11. Connecting tube; 12. Filter element; 13. First filter screen; 14. First through plate; 15. Air vent; 16. Multi-faceted hollow ball; 17. Drainage plate; 18. Cloth bag; 19. Vacuum jet nozzle; 20. Water supply pump; 21. Water outlet; 22. Second through plate; 23. Dust removal hole; 24. Observation window. DETAILED DESCRIPTION

[0021] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Example:

[0023] Reference Figures 1 to 3 The utility model is a circulating spray dust removal device, comprising a shell 1, characterized in that: an air inlet 2 is provided at the top of the shell 1, a spray chamber 3 connected with the air inlet 2 is provided in the shell 1, a water storage tank 4 connected with the spray chamber 3 is provided at the bottom of the shell 1, a circulating spray assembly is provided between the water storage tank 4 and the spray chamber 3, the circulating spray assembly comprises a circulating water pump 8 and a filter element, the circulating water pump 8 is fixed on the side wall of the shell 1, the filter element is located in the water storage tank 4 and is connected with the water inlet of the circulating water pump 8, the filter element comprises a connecting tube 11 which passes through the top and bottom and a filter element 12 arranged in the connecting tube 11, the filter element 12 is the filter element 12 used in the water purification device, and can be made of pp cotton or granular activated carbon. The connecting tube 11 is detachably installed in the water storage tank 4, and the water outlet at the top of the connecting tube 11 is connected to the circulating water pump 8. The first filter screen 13 is provided in the water inlet at the bottom of the connecting tube 11. The spray chamber 3 is provided with a nozzle 10 for spraying to the air inlet 2, and the nozzle 10 is connected to the water outlet of the circulating water pump 8. The side wall of the shell 1 is provided with a water supply pump 20 connected to the water inlet of the circulating water pump 8. The water storage tank 4 is provided with a water outlet 21, and the side wall of the water storage tank 4 is provided with a plurality of observation windows 24. This arrangement can effectively extract water from the water storage tank 4 through the circulating water pump 8, and then filter the impurity particles in the water through the filter element 12 and the first filter screen 13 in the filter element, and spray it out from the nozzle 10 again. The turbidity of the internal water can be intuitively seen through the observation window 24, and it is discharged through the water outlet 21. The shell 1 can be replenished with water in a timely and effective manner through the water supply pump 20.

[0024] like Figure 1 As shown, the housing 1 is provided with a dust removal chamber 5 connected with the spray chamber 3, the dust removal chamber 5 is provided with a first through plate 14 with through holes, the side wall of the dust removal chamber 5 is provided with a vent 15 connected with the dust removal bin 6, and a plurality of polyhedral hollow balls 16 are provided in the dust removal chamber 5 and between the first through plate 14 and the vent 15. This arrangement can effectively absorb water vapor in the passing flue gas through the plurality of polyhedral hollow balls 16, and further absorb particles in the flue gas through the plurality of surfaces that absorb water vapor. A transparent observation door is hingedly provided on the side wall of the dust removal chamber 5. The vent 15 is provided with a second through plate 22 with through holes, and the second through plate 22 is mainly used to prevent the plurality of polyhedral hollow balls 16 from entering the dust removal bin 6.

[0025] like Figure 2As shown, the side wall of the housing 1 is provided with a dust removal bin 6 in communication with the dust removal chamber 5, and an air outlet 7 is provided on the side wall of the dust removal bin 6. A vertical guide plate 17 is provided in the dust removal bin 6 and near the through hole. The guide plate 17 is used to guide the smoke to the bottom of the dust removal bin 6. A plurality of cloth bags 18 with top openings and vertical arrangement are provided in the dust removal bin 6 and between the guide plate 17 and the air outlet 7. A plurality of vacuum nozzles 19 are provided in the dust removal bin 6 and correspond to each other at the top opening of each cloth bag 18. A conical dust removal hole 23 is provided at the bottom of the dust removal bin 6. The smoke entering the dust removal bin 6 is guided to the bottom of the dust removal bin 6 by the guide plate 17, and then the smoke rises and passes through a plurality of cloth bags 18 for further dust removal, and finally is discharged from the air outlet 7 to the next process. The vacuum jet head 19 can be connected to a vacuum air pump to spray air into the cloth bag 18 to spray off the particles attached to the cloth bag 18. The sprayed particles are finally collected and discharged from the dust removal hole 23.

[0026] Working principle:

[0027] When in use, the flue gas first enters the housing 1 through the air inlet 2. At this time, the circulating water pump 8 in the spray chamber 3 extracts the water in the water storage tank 4, and then the impurity particles in the water are filtered through the filter element 12 and the first filter screen 13 in the filter element, and the water is sprayed from the nozzle 10, and the incoming flue gas is sprayed to precipitate some particles in the flue gas, and enter the water storage tank 4 with the water flow, and further filter and absorb the water in the water storage tank 4 through the circulating spray. The flue gas passing through the spray chamber 3 will enter the dust removal chamber 5, and the water vapor in the flue gas entering will be absorbed by the multiple multi-faceted hollow balls 16, and the particles in the flue gas will be further absorbed by the multiple surfaces that absorb water vapor. The flue gas passing through the dust removal chamber 5 enters the dust removal bin 6, and the flue gas entering the dust removal bin 6 is drained to the bottom of the dust removal bin 6 by the guide plate 17, and then the flue gas rises and passes through a number of cloth bags 18 for further dust removal, and finally discharged from the air outlet 7.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A circulating spray dust removal device, comprising a housing (1), characterized in that: The shell (1) is provided with an air inlet (2) at the top, a spray chamber (3) in communication with the air inlet (2) is provided in the shell (1), a water storage tank (4) in communication with the spray chamber (3) is provided at the bottom of the shell (1), a circulating spray assembly is provided between the water storage tank (4) and the spray chamber (3), a dust removal chamber (5) in communication with the spray chamber (3) is provided in the shell (1), a dust removal chamber (6) in communication with the dust removal chamber (5) is provided on the side wall of the shell (1), and an air outlet (7) is provided on the side wall of the dust removal chamber (6).

2. A circulating spray dust removal device according to claim 1, characterized in that: The circulating spray assembly comprises a circulating water pump (8) and a filter element. The circulating water pump (8) is fixedly mounted on the side wall of the housing (1). The filter element is located in a water storage tank (4) and is connected to a water inlet of the circulating water pump (8). A spray head (10) for spraying toward the air inlet (2) is provided in the spray chamber (3). The spray head (10) is connected to a water outlet of the circulating water pump (8).

3. A circulating spray dust removal device according to claim 2, characterized in that: The filter element comprises a connecting tube (11) which is connected from top to bottom and a filter element (12) arranged in the connecting tube (11); the connecting tube (11) is detachably installed in a water storage tank (4) and a water outlet at the top of the connecting tube (11) is connected to a circulating water pump (8); a first filter screen (13) is arranged in a water inlet at the bottom of the connecting tube (11).

4. A circulating spray dust removal device according to claim 1, characterized in that: A first through plate (14) with through holes is provided in the dust removal chamber (5), a vent hole (15) communicating with the dust removal bin (6) is provided on a side wall of the dust removal chamber (5), and a plurality of multi-faceted hollow balls (16) are provided in the dust removal chamber (5) and between the first through plate (14) and the vent hole (15).

5. A circulating spray dust removal device according to claim 4, characterized in that: A vertical guide plate (17) is provided in the dust removal bin (6) near the air vent (15), and the guide plate (17) is used to guide smoke to the bottom of the dust removal bin (6). A plurality of cloth bags (18) with top openings and arranged vertically are provided in the dust removal bin (6) between the guide plate (17) and the air outlet (7).

6. A circulating spray dust removal device according to claim 5, characterized in that: A plurality of vacuum nozzles (19) are provided in the dust removal bin (6) and at the top opening of each cloth bag (18) in a one-to-one correspondence.

7. A circulating spray dust removal device according to claim 2, characterized in that: A water supply pump (20) which is in communication with the water inlet of a circulating water pump (8) is provided on the side wall of the housing (1).

8. A circulating spray dust removal device according to claim 4, characterized in that: A water outlet hole (21) is provided in the water storage bin (4), and a plurality of observation windows (24) are provided on the side wall of the water storage bin (4).

9. A circulating spray dust removal device according to claim 4, characterized in that: A second through plate (22) with through holes is arranged in the vent hole (15).

10. A circulating spray dust removal device according to claim 4, characterized in that: A conical dust removal hole (23) is provided at the bottom of the dust removal bin (6).

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