CN219848927U - Denitration treatment mechanism of sintering system - Google Patents

Abstract

The utility model discloses a denitration treatment mechanism of a sintering system, which comprises a denitration taper pipe, a communicating pipe, a transmission pipe, a spray head, a first end block, a second end block and a positioning plate, wherein the transmission pipe is symmetrically inserted into the outer walls of two sides of the denitration taper pipe, the first end block and the second end block are respectively arranged at two ends of the transmission pipe, the communicating pipe is inserted into the first end block, the spray head is rotatably regulated on the outer wall of the second end block, the spray head is embedded and installed on the surface of the spray head, the spray nozzle is distributed in a circular array, the positioning plate is arranged in the spray head, a taper rod is arranged on one side surface of the positioning plate, spiral stranding sheets are arranged on the surface of the taper rod, and one end of the communicating pipe is connected with an ammonia water pipe. According to the utility model, the twisting piece is driven to rotate by the ammonia water flow, so that the spray nozzle is driven to rotate, the spraying range of ammonia water can be effectively increased, the use amount of ammonia water can be saved, and the denitration treatment effect can be improved.

Description

Denitration treatment mechanism of sintering system

Technical Field

The utility model relates to the technical field of cement production, in particular to a denitration treatment mechanism of a sintering system.

Background

The total amount of nitrogen oxides discharged from cement production has become a fourth source of NOx emissions after utility boilers, industrial boilers and mobile sources, and NOx emissions have become a limiting factor for sustainable development of the cement industry. At present, the proportion of an advanced novel dry cement production line is increased year by year, the smoke amount discharged from the kiln tail is also increased year by year, and the smoke amount of a cement kiln is large and the discharge concentration is high as a single point source, so that the problems are urgently needed to be solved.

After massive search, the prior art is found that: the utility model discloses a publication number is CN215027549U, a novel cement kiln accuracy sprays aqueous ammonia denitration device, which comprises a tank body, the bottom inner wall of the jar body has the swivelling joint through the bearing, the bottom outer wall of the jar body has the motor through bolted connection, the output shaft one end of motor passes through spline connection with the swivelling joint, the outer wall of swivelling joint is provided with evenly distributed's dispersion fill, one side outer wall welding of the jar body has the intake pipe, the one end of intake pipe extends to the inside welding of jar body and has the intubate, and poor pipe grafting is in the inside of swivelling joint, the both sides outer wall welding of swivelling joint has the outlet duct, open at the top outer wall of outlet duct has evenly distributed's venthole. According to the utility model, waste gas generated by the cement kiln is introduced into the rotary pipe, so that the waste gas flows out through the air outlet hole of the air outlet pipe, and then the rotary pipe is driven by the motor to rotate, so that nitrogen oxides in the waste gas are more fully contacted with ammonia water in the tank body, and the effect of denitration of the waste gas is realized.

In summary, in order to ensure the denitration of nitrogen oxides discharged in cement production, an ammonia water spraying method is mostly adopted, but in order to ensure the comprehensiveness of denitration, a means of increasing the spraying area and the spraying amount of ammonia water is generally adopted, and although a good denitration effect can be achieved, the consumption of ammonia water is also relatively large.

Disclosure of Invention

The utility model aims to provide a denitration treatment mechanism of a sintering system, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a system denitration treatment facility burns till, includes denitration taper pipe, communicating pipe, transmission pipe, shower nozzle, first end piece, second end piece and locating plate, the symmetry of denitration taper pipe both sides outer wall is pegged graft has the transmission pipe, transmission pipe both ends are provided with first end piece and second end piece respectively, inside pegging graft of first end piece has communicating pipe, second end piece outer wall rotates and adjusts there is the shower nozzle, shower nozzle surface mounting has the nozzle that is circular array and distributes, the inside locating plate that is provided with of shower nozzle, locating plate one side surface is provided with the awl pole, awl pole surface is provided with the hank piece that is the heliciform and distributes, communicating pipe one end is connected with the ammonia water pipe.

Preferably, the lower ends of the ammonia water pipes are provided with throttle valves.

Preferably, the communicating pipe is inserted into the upper end of the first end block, and the communicating pipe is communicated with the inside of the transmission pipe.

Preferably, the sealing ring contacted with the inner wall of the spray head is embedded and arranged on the outer wall of the second end block.

Preferably, a limiting ring is arranged on one side of the inner part of the spray head.

Preferably, symmetrically distributed through holes are formed in the surface of the positioning plate.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the taper rod and the taper rod are arranged in the transmission pipe, when ammonia water is injected into the upper end of the transmission pipe through the communicating pipe, as the direction of the ammonia water injected into the transmission pipe is not coincident with the axis of the transmission pipe, one side of the taper rod can be pushed, the taper rod and the taper rod are driven to rotate through water flow, the ammonia water can be sprayed into the denitration taper pipe through the nozzle along with the injection of the ammonia water into the spray head, meanwhile, the flow of the ammonia water also drives the taper rod to rotate, the spray head can automatically rotate while spraying the ammonia water, the spraying area is effectively increased, the sprayed ammonia water can be fully contacted with waste gas, the comprehensive flue gas denitration treatment is realized, and the consumption of the ammonia water is also reduced.

Drawings

FIG. 1 is a schematic diagram of a main sectional structure of a denitration cone pipe of the utility model;

FIG. 2 is a schematic diagram of the main cross-sectional structure of the transfer tube of the present utility model;

FIG. 3 is a schematic diagram showing the structure of a side view of the nozzle according to the present utility model;

fig. 4 is a schematic cross-sectional view of a spray head according to the present utility model.

In the figure: 1. denitration taper pipe; 2. a communicating pipe; 3. an ammonia water pipe; 4. a throttle valve; 5. a transmission tube; 6. a spray head; 7. a nozzle; 8. a taper rod; 9. a first end block; 10. twisting sheets; 11. a second end block; 12. a positioning plate; 13. a limiting ring; 14. a seal ring; 15. and a through hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4, an embodiment of the present utility model provides: the utility model provides a sintering system denitration treatment facility, including denitration taper pipe 1, communicating pipe 2, transfer pipe 5, shower nozzle 6, first end piece 9, second end piece 11 and locating plate 12, the outer wall symmetry grafting of denitration taper pipe 1 both sides has transfer pipe 5, transfer pipe 5 both ends are provided with first end piece 9 and second end piece 11 respectively, the inside grafting of first end piece 9 has communicating pipe 2, communicating pipe 2 grafting is inside in first end piece 9 upper end, and communicating pipe 2 is linked together with transfer pipe 5 inside, second end piece 11 outer wall rotation regulation has shower nozzle 6, the sealing washer 14 with shower nozzle 6 inner wall contact is installed in the embedding of second end piece 11 outer wall, shower nozzle 6 inside one side is provided with spacing ring 13, shower nozzle 6 surface embedding installs the nozzle 7 that is circular array distribution, the inside locating plate 12 that is provided with of shower nozzle 6, the through-hole 15 of symmetric distribution has been seted up on the locating plate 12 surface, when the transfer pipe 5 upper end is annotated through communicating pipe 2, because the axis of transfer pipe 5 injection direction and transfer pipe 5 does not coincide, can promote the hank piece 10 one side, and then rotate along with filling into taper rod 8 through rivers, inside shower nozzle 7, inside can spray through shower nozzle 7.

The locating plate 12 one side surface is provided with awl pole 8, and awl pole 8 surface is provided with the hank piece 10 that is the heliciform and distributes, and the flow of aqueous ammonia has also driven awl pole 8 rotation, has realized that shower nozzle 6 can also rotate by oneself when spraying aqueous ammonia, has effectively increased spraying area, can be with the comprehensive contact of spun aqueous ammonia and waste gas, realizes comprehensive flue gas denitration treatment to the quantity of aqueous ammonia has also obtained the reduction. Communicating pipe 2 one end is connected with ammonia water pipe 3, and ammonia water pipe 3 lower extreme all is provided with choke valve 4, and the flue gas is transmitted through denitration taper pipe 1, and ammonia water accessible ammonia water pipe 3 transmits, and the staff can carry out flow control according to the actual use condition.

The flue gas is transmitted through denitration taper pipe 1, ammonia water accessible ammonia water pipe 3 carries out the transmission, the staff can carry out flow control according to the actual usage condition, when ammonia water passes through communicating pipe 2 injection transmission pipe 5 upper end, because transmission pipe 5 injection ammonia water direction and transmission pipe 5's axis misalignment, can promote hank piece 10 one side, and then drive hank piece 10 and awl pole 8 through rivers and rotate, inside with ammonia water injection shower nozzle 6, accessible nozzle 7 sprays inside denitration taper pipe 1, simultaneously, the flow of ammonia water has also driven the rotation of awl pole 8, realized shower nozzle 6 can also rotate by oneself when spraying ammonia water, effectively increased the spraying area, can be with the comprehensive contact of spun ammonia water and waste gas, realize comprehensive flue gas denitration treatment, and the quantity of ammonia water has also obtained the reduction.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides a sintering system denitration treatment mechanism, includes denitration taper pipe (1), communicating pipe (2), transmission pipe (5), shower nozzle (6), first end piece (9), second end piece (11) and locating plate (12), its characterized in that: the utility model discloses a denitration taper pipe, including denitration taper pipe (1), conveyer pipe (5) are pegged graft to denitration taper pipe (1) both sides outer wall symmetry, conveyer pipe (5) both ends are provided with first end piece (9) and second end piece (11) respectively, inside grafting of first end piece (9) has communicating pipe (2), second end piece (11) outer wall rotates and is adjusted there is shower nozzle (6), shower nozzle (6) surface mounting is nozzle (7) that are circular array and distribute, shower nozzle (6) inside is provided with locating plate (12), locating plate (12) one side surface is provided with awl pole (8), awl pole (8) surface is provided with hank piece (10) that are the heliciform and distribute, communicating pipe (2) one end is connected with ammonia pipe (3).

2. The denitration treatment mechanism of a firing system according to claim 1, wherein: the lower ends of the ammonia water pipes (3) are provided with throttle valves (4).

3. The denitration treatment mechanism of a firing system according to claim 1, wherein: the communicating pipe (2) is inserted into the upper end of the first end block (9), and the communicating pipe (2) is communicated with the inside of the transmission pipe (5).

4. The denitration treatment mechanism of a firing system according to claim 1, wherein: and a sealing ring (14) contacted with the inner wall of the spray head (6) is embedded and arranged on the outer wall of the second end block (11).

5. The denitration treatment mechanism of a firing system according to claim 1, wherein: a limiting ring (13) is arranged on one side of the inner part of the spray head (6).

6. The denitration treatment mechanism of a firing system according to claim 1, wherein: symmetrically distributed through holes (15) are formed in the surface of the positioning plate (12).