CN213995338U - Clean energy-saving flue gas desulfurization and denitrification system simultaneously - Google Patents

Abstract

The utility model discloses a clean energy-saving flue gas simultaneous desulfurization and denitrification system, which comprises a reaction tower, a reaction dust collector, a bag type dust collector, a draught fan and a smoke exhaust pipe which are connected in sequence; the reaction dust remover comprises a cyclone dust remover and a spiral quantitative feeder; the spiral quantitative feeder comprises a measuring feeding hopper and a spiral conveyer; a filter plate is obliquely arranged in the metering hopper; a discharge opening is formed in the side wall of the metering hopper; the lower end of the filter plate is connected with a collecting hopper through a discharge port; a crusher is also arranged in the collecting hopper; a discharge port is arranged at the bottom of the collecting hopper; the smoke exhaust pipe is respectively connected with a discharge pipe and a recovery pipe; the recovery pipe is connected with the drying kiln; a flue is arranged at the lower part of the outer wall of the drying kiln; the flue is connected with a recovery pipe; the flue is communicated with the drying kiln through an air inlet; the utility model discloses the technical scheme who takes has solved and has appeared the caking easily among the SOx/NOx control system feeder and lead to influencing the problem of reaction and fail the waste heat problem of the hot flue gas after effectively utilizing SOx/NOx control.

Description

Clean energy-saving flue gas desulfurization and denitrification system simultaneously

Technical Field

The utility model relates to a refractory material technical field, concretely relates to clean energy-saving flue gas SOx/NOx control system simultaneously.

Background

In the production of refractory materials, a desulfurization and denitrification process is often required to be carried out on flue gas so as to reduce the pollution to the atmosphere. The reaction materials for desulfurization and denitrification mainly comprise lime powder, soda powder and urea powder; however, due to the influence of the quality of raw materials, the storage time and the environment, the materials are easy to be agglomerated in the dosing device, so that the reaction is influenced; in addition, the flue gas after desulfurization and denitrification still has certain heat, and the current desulfurization and denitrification system does not effectively utilize the part of heat.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a clean energy-saving flue gas SOx/NOx control system simultaneously, the problem that the caking leads to influencing the reaction and fails the waste heat problem of the hot flue gas after effectively utilizing SOx/NOx control appears easily in solving current clean energy-saving flue gas SOx/NOx control system feeder simultaneously.

In order to solve the technical problem, the utility model adopts the following technical scheme: a clean energy-saving flue gas simultaneous desulfurization and denitrification system comprises a reaction tower, a reaction dust collector, a bag type dust collector, a draught fan and a smoke exhaust pipe which are sequentially connected; the reaction dust remover comprises a cyclone dust remover and a spiral quantitative feeder; the spiral quantitative feeder comprises a measuring feeding hopper and a spiral conveyer; a filter plate is obliquely arranged in the metering hopper; a discharge opening is formed in the side wall of the metering hopper; the lower end of the filter plate is connected with a collecting hopper through a discharge port; a crusher is also arranged in the collecting hopper; a discharge hole is formed in the bottom of the collecting hopper; the smoke exhaust pipe is connected with a discharge pipe and a recovery pipe respectively; the recovery pipe is connected with the drying kiln; a flue is arranged at the lower part of the outer wall of the drying kiln; the flue is connected with a recovery pipe; the flue is communicated with the drying kiln through an air inlet;

further, the crusher comprises a first crushing roller and a second crushing roller; the first crushing roller and the second crushing roller are arranged in the collecting hopper side by side; the first crushing roller and the second crushing roller rotate reversely in the collecting hopper;

further, the surface of the first crushing roller is provided with first crushing rods which are radially and symmetrically arranged; the surface of the second crushing roller is radially and symmetrically provided with second crushing rods; the first crushing rod and the second crushing rod are staggered with each other in the axial direction;

furthermore, the surfaces of the first crushing rod and the second crushing rod are both provided with convex edges;

further, the flue is U-shaped; the flue is arranged on the outer wall of the drying kiln in a surrounding manner; the recovery pipe is connected with the middle part of the flue;

furthermore, the flue comprises a bottom plate, side walls and a top wall; the bottom plate, the side walls, the top wall and the outer wall of the drying kiln jointly form a flue; the air inlet is arranged on the outer wall of the drying kiln;

further, a flow guide cover is arranged on the air inlet; the lower edge of the air guide sleeve is hinged with a cover plate;

a further technical proposal is that the upper edge of the air guide sleeve is provided with a reinforcing rib; the reinforcing ribs are provided with clamping grooves; and a clamping rib is arranged at the edge of one side of the cover plate corresponding to the clamping groove.

Compared with the prior art, the beneficial effects of the utility model are one of following at least:

1. the filter plate is obliquely arranged in the metering feeding hopper, so that large materials which do not meet the requirement on particle size can be screened from the powder materials and transferred into the collecting hopper through the discharge port, the particle size requirement of reaction raw materials can be met, and the desulfurization and denitrification reaction can be carried out;

2. the crusher is arranged in the collecting hopper, so that the agglomerated materials are crushed to obtain powdery materials again, the agglomerated materials are recycled, resources are saved, and the utilization rate of raw materials is improved;

3. the exhaust pipe on the smoke exhaust pipe can exhaust the flue gas subjected to desulfurization, denitrification and dust removal into the atmosphere, and the recovery pipe is connected with the drying kiln, so that the treated flue gas can be selectively introduced into the drying kiln according to the requirement, and the drying temperature of the drying kiln can be adjusted by using the heat of the treated flue gas;

4. set up the flue in the lower part of drying kiln, the flue is through near mouth and drying kiln intercommunication, is favorable to hot-air to get into in the drying kiln from the lower part of drying kiln, is favorable to utilizing the heat of flue gas, from the bottom up transfer heat in the drying kiln, is favorable to cooperating the drying device of drying kiln, is favorable to adjusting the temperature in the drying kiln as required.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of a spiral constant feeder.

FIG. 3 is a schematic view of the breaker structure.

Fig. 4 is a schematic view of the top view of the partial structure of the present invention.

Fig. 5 is a schematic view of the front view structure of the partial structure of the present invention.

Fig. 6 is a schematic view of the pod structure.

In the drawings: 1. a reaction tower; 2. a reaction dust remover; 3. a bag filter; 4. an induced draft fan; 5. a smoke exhaust pipe; 6. a cyclone dust collector; 7. a spiral constant feeder; 8. a metering hopper; 9. a screw conveyor; 10. filtering the plate; 11. a collecting hopper; 12. a crusher; 13. a discharge pipe; 14. a recovery pipe; 15. a drying kiln; 16. a flue; 17. an air inlet; 18. a first crushing roller; 19. a second crushing roller; 20. a first breaker bar; 21. a second breaker bar; 22. a top wall; 23. a base plate; 24. a side wall; 25. a pod; 26. a cover plate; 27. reinforcing ribs; 28. and (5) clamping the ribs.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1: as shown in fig. 1 to 6, a clean energy-saving flue gas simultaneous desulfurization and denitrification system comprises a reaction tower 1, a reaction dust collector 2, a bag type dust collector 3, an induced draft fan 4 and a smoke exhaust pipe 5 which are connected in sequence; the reaction dust remover 2 comprises a cyclone dust remover 6 and a spiral quantitative feeder 7; the spiral quantitative feeder 7 comprises a measuring feeding hopper 8 and a spiral conveyer 9; a filter plate 10 is obliquely arranged in the metering hopper 8; a discharge port is formed in the side wall of the metering hopper 8; the lower end of the filter plate 10 is connected with a collecting hopper 11 through a discharge port; a crusher 12 is also arranged in the collecting hopper 11; a discharge hole is formed in the bottom of the collecting hopper 11; the smoke exhaust pipe 5 is respectively connected with a discharge pipe 13 and a recovery pipe 14; the recovery pipe 14 is connected with a drying kiln 15; a flue 16 is arranged at the lower part of the outer wall of the drying kiln 15; the flue 16 is connected with the recovery pipe 14; the flue 16 is communicated with the drying kiln 15 through an air inlet 17; in the embodiment, the reaction tower 1, the reaction dust collector 2, the bag type dust collector 3, the induced draft fan 4 and the smoke exhaust pipe 5 all adopt conventional commercially available products and connection modes, and any reasonable structure and installation mode can be selected according to needs; in the embodiment, the metering hopper 8 and the screw conveyor 9 are conventional commercial products and are arranged in a conventional connection and installation mode, and any metering hopper 8 and screw conveyor 9 with reasonable structures and connection modes can be selected according to needs; in this embodiment, the screening particle size of the filter plate 10 can be appropriately selected as needed, and the collection hopper 11 is made of a conventional material having a certain mechanical strength, and any reasonable material can be selected as needed. In the embodiment, the discharge pipe 13 and the recovery pipe 14 are both made of conventional pipeline materials and are connected with the smoke discharge pipe 5 in a conventional connection mode; in this embodiment, the drying kiln 15 is a conventional drying kiln 15, and the drying kiln 15 is provided with a conventional exhaust device and a heating device, and any reasonable structure of the drying kiln 15 can be selected according to requirements; in this embodiment, the flue 16 and the recovery pipe 14 are connected in a conventional manner, and any one of reasonable fixed connection manners can be selected according to requirements; in this embodiment, the recovery pipe 14 is provided with a conventional control valve, and any reasonable control valve can be selected according to the requirement.

The filter plate 10 is obliquely arranged in the metering hopper 8, so that large materials which do not meet the requirement on particle size can be screened from powder materials and transferred into the collecting hopper 11 through the discharge port, the particle size requirement of reaction raw materials can be met, and the desulfurization and denitrification reaction can be carried out; the crusher 12 is arranged in the collecting hopper 11, so that the agglomerated materials are crushed to obtain powdery materials again, the agglomerated materials are recycled, resources are saved, and the utilization rate of raw materials is improved; the discharge pipe 13 on the smoke discharge pipe 5 can discharge the flue gas subjected to desulfurization, denitrification and dust removal into the atmosphere, and the recovery pipe 14 is connected with the drying kiln 15, so that the treated flue gas can be selectively introduced into the drying kiln 15 according to the requirement, and the drying temperature of the drying kiln 15 can be adjusted by using the heat of the flue gas; set up flue 16 in the lower part of drying kiln 15, flue 16 communicates with drying kiln 15 through near mouth, is favorable to hot-air to get into drying kiln 15 from the lower part of drying kiln 15 in, is favorable to utilizing the heat of flue gas, from the bottom up transfer heat in drying kiln 15, is favorable to cooperating the drying device of drying kiln 15, is favorable to adjusting the temperature in drying kiln 15 as required.

The crusher 12 comprises a first crushing roller 18 and a second crushing roller 19; the first crushing roller 18 and the second crushing roller 19 are arranged side by side in the collecting hopper 11; the first crushing roller 18 and the second crushing roller 19 rotate in opposite directions in the collecting hopper 11; in the embodiment, the first crushing roller 18 and the second crushing roller 19 are driven to rotate by a conventional commercially available motor respectively, a motor conveying shaft is connected with the first crushing roller 18 and the second crushing roller 19 through conventional couplings, and the other ends of the first crushing roller 18 and the second crushing roller 19 are fixed on the side wall of the metering hopper 8 through conventional bearing pieces; any motor, coupling and bearing piece with reasonable structure and connection mode can be selected according to the requirement, so that the first crushing roller 18 and the second crushing roller 19 can stably rotate; in this embodiment, first crushing roller 18 and second crushing roller 19 rotate in measurement hopper 8 in opposite directions, and the material of caking gets into from the bin outlet and collects after fighting 11, passes through between first crushing roller 18 and the second crushing roller 19, and the extrusion force that first crushing roller 18 and second crushing roller 19 produced is favorable to the material breakage with the caking, is favorable to retrieving the back and recycles, is favorable to resources are saved, is favorable to improving the utilization ratio of raw materials.

The surface of the first crushing roller 18 is provided with first crushing rods 20 which are radially and symmetrically arranged; the surface of the second crushing roller 19 is provided with second crushing rods 21 in a radial symmetry manner; the first crushing rod 20 and the second crushing rod 21 are staggered with each other in the axial direction; in this embodiment, the first crushing rod 20 and the second crushing rod 21 are made of conventional materials with certain mechanical strength, and are fixed on the surfaces of the first crushing roller 18 and the second crushing roller 19 in a conventional fixed connection manner, and any reasonable material can be selected according to the requirement; in this embodiment, first crushing roller 18 and second crushing roller 19 rotate in measurement hopper 8 in opposite directions, after the material of caking gets into collection hopper 11 from the bin outlet, pass through between first crushing roller 18 and the second crushing roller 19, when first crushing roller 18 and second crushing roller 19 are constantly rotated in opposite directions by motor drive respectively, first broken stick 20 and second broken stick 21 that stagger each other in the axial constantly alternate each other, the separation, the caking material that quick powerful extrusion falls between first crushing roller 18 and second crushing roller 19, be favorable to the breakage to go on, be favorable to recycling back and recycle, be favorable to resources are saved, be favorable to improving the utilization ratio of raw materials.

The surfaces of the first crushing rod 20 and the second crushing rod 21 are both provided with convex ribs; in the embodiment, the rib is made of conventional materials with certain mechanical strength, and any reasonable material can be selected according to the requirement; in this embodiment, the radial evenly setting of bead is on first broken stick 20 or second broken stick 21 surface, is favorable to cutting broken thing piece, is favorable to improving crushing efficiency.

The flue 16 is U-shaped; the flue 16 is arranged on the outer wall of the drying kiln 15 in a surrounding way; the recovery pipe 14 is connected with the middle part of the flue 16; in this embodiment, the flue 16 is U-shaped, which is beneficial to surrounding the drying kiln 15 and preventing the material from entering and exiting from the front end of the drying kiln 15; in this embodiment, the recycling pipe 14 is connected to the middle of the flue 16, which is beneficial to the diffusion of hot air from the middle of the flue 16 to both sides after entering the flue 16, is beneficial to the improvement of the uniformity of the temperature in the flue 16, and is beneficial to the improvement of the utilization effect of the heat of the flue gas in the flue 16.

The flue 16 comprises a bottom plate 23, side walls 24 and a top wall 22; the bottom plate 23, the side walls 24, the top wall 22 and the outer wall of the drying kiln 15 form a flue 16; the air inlet 17 is arranged on the outer wall of the drying kiln 15; in this embodiment, the bottom plate 23, the side walls 24 and the top wall 22 of the flue 16 are made of conventional materials with certain mechanical strength and heat-insulating property, and any reasonable material can be selected according to the requirement; the interior of the flue 16 and the interior of the drying kiln 15 are only separated by the side wall of the drying kiln 15, so that the utilization of heat is improved, the construction amount is reduced, meanwhile, the recovery pipe 14 is prevented from being directly communicated with the drying kiln 15, the potential safety hazard is reduced, and the safety performance is improved; in this embodiment, the air inlet 17 is arranged on the outer wall of the drying kiln 15, and the air inlet 17 is distributed uniformly and reasonably and can be suitably arranged as required, which is beneficial to uniformly introducing hot air into the drying kiln 15.

A flow guide cover 25 is arranged on the air inlet 17; the lower edge of the air guide sleeve 25 is hinged with a cover plate 26; in this embodiment, the air guide sleeve 25 is made of a conventional material having a certain heat resistance and mechanical strength, and any reasonable material can be selected according to the requirement; in this embodiment, the air guide sleeve 25 and the air inlet 17 are connected by a conventional fixed connection method, for example, by bolts, nuts, etc.; the air guide sleeve 25 is arranged on the air inlet 17, so that the uniform flow guide of hot air to two sides and the upper part is facilitated, the uniform heat transfer is facilitated, and the heat utilization effect is improved. In this embodiment, the cover plate 26 is made of a conventional material having a certain heat resistance and mechanical strength, and any reasonable material can be selected according to the requirement; in this embodiment, the cover plate 26 and the material cover are connected by a conventional hinge connector, and any hinge connector with good heat resistance and reasonable structure can be selected according to the requirement; after the cover plate 26 is hinged to the lower edge of the air guide sleeve 25, the end portion of the air guide sleeve 25 can be flexibly turned over, the air guide sleeve 25 can be opened or closed, and a waste heat utilization system can be selected and used as required.

The upper edge of the air guide sleeve 25 is provided with a reinforcing rib 27; the reinforcing ribs 27 are provided with clamping grooves; a clamping rib 28 is arranged at the edge of one side of the cover plate 26 corresponding to the clamping groove. In this embodiment, set up the draw-in groove on the strengthening rib 27, when apron 26 overturns and covers kuppe 25, accessible card muscle 28 and the being connected of draw-in groove realize the fixed to apron 26 position, are favorable to improving apron 26 and seal up the stability of kuppe 25, are favorable to improving the flexibility that kuppe 25 used, are favorable to selectively using as required.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims (8)

1. A clean energy-saving flue gas simultaneous desulfurization and denitrification system comprises a reaction tower (1), a reaction dust collector (2), a bag type dust collector (3), an induced draft fan (4) and a smoke exhaust pipe (5) which are connected in sequence; the reaction dust remover (2) comprises a cyclone dust remover (6) and a spiral quantitative feeder (7); the method is characterized in that: the spiral quantitative feeder (7) comprises a measuring feeding hopper (8) and a spiral conveyer (9); a filter plate (10) is obliquely arranged in the metering hopper (8); a discharge opening is formed in the side wall of the metering hopper (8); the lower end of the filter plate (10) is connected with a collecting hopper (11) through a discharge port; a crusher (12) is also arranged in the collecting hopper (11); a discharge hole is formed in the bottom of the collecting hopper (11); the smoke exhaust pipe (5) is respectively connected with a discharge pipe (13) and a recovery pipe (14); the recovery pipe (14) is connected with the drying kiln (15); a flue (16) is arranged at the lower part of the outer wall of the drying kiln (15); the flue (16) is connected with a recovery pipe (14); the flue (16) is communicated with the drying kiln (15) through an air inlet (17).

2. The system for simultaneously desulfurizing and denitrating clean energy-saving flue gas according to claim 1, characterized in that: the crusher (12) comprises a first crushing roller (18) and a second crushing roller (19); the first crushing roller (18) and the second crushing roller (19) are arranged in the collecting hopper (11) side by side; the first (18) and second (19) crushing rollers rotate in opposite directions within the collecting hopper (11).

3. The system for simultaneously desulfurizing and denitrating clean energy-saving flue gas according to claim 2, characterized in that: the surface of the first crushing roller (18) is provided with first crushing rods (20) which are radially and symmetrically arranged; a second crushing rod (21) is radially and symmetrically arranged on the surface of the second crushing roller (19); the first breaker bar (20) and the second breaker bar (21) are axially staggered with respect to each other.

4. The system for simultaneously desulfurizing and denitrating clean energy-saving flue gas according to claim 3, characterized in that: the surfaces of the first crushing rod (20) and the second crushing rod (21) are both provided with convex ribs.

5. The system for simultaneously desulfurizing and denitrating clean energy-saving flue gas according to claim 1, characterized in that: the flue (16) is U-shaped; the flue (16) is arranged on the outer wall of the drying kiln (15) in a surrounding way; the recycling pipe (14) is connected with the middle part of the flue (16).

6. The system for simultaneously desulfurizing and denitrating clean energy-saving flue gas according to claim 1, characterized in that: the flue (16) comprises a bottom plate (23), side walls (24) and a top wall (22); the bottom plate (23), the side walls (24), the top wall (22) and the outer wall of the drying kiln (15) enclose a flue (16); the air inlet (17) is arranged on the outer wall of the drying kiln (15).

7. The system for simultaneously desulfurizing and denitrating clean energy-saving flue gas according to claim 1, characterized in that: a flow guide cover (25) is arranged on the air inlet (17); the lower edge of the air guide sleeve (25) is hinged with a cover plate (26).

8. The system for simultaneously desulfurizing and denitrating clean energy-saving flue gas as claimed in claim 7, wherein: the upper edge of the air guide sleeve (25) is provided with a reinforcing rib (27); the reinforcing ribs (27) are provided with clamping grooves; and a clamping rib (28) is arranged at the edge of one side of the cover plate (26) corresponding to the clamping groove.

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