CN213179340U

CN213179340U - Flue gas desulfurization and denitrification waste heat recycling system

Info

Publication number: CN213179340U
Application number: CN202021889302.6U
Authority: CN
Inventors: 王嘉楠
Original assignee: Zhengzhou Tongda Refractory Co ltd
Current assignee: Zhengzhou Tongda Refractory Co ltd
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-05-11
Anticipated expiration: 2030-09-02

Abstract

The utility model discloses a flue gas desulfurization and denitrification waste heat recycling 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 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; the utility model discloses the technical scheme who takes utilizes the heat of the flue gas after the current SOx/NOx control to the drying kiln in.

Description

Flue gas desulfurization and denitrification waste heat recycling system

Technical Field

The utility model relates to a refractory material technical field, concretely relates to flue gas desulfurization denitration waste heat system of recycling.

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 flue gas subjected to desulfurization and denitrification also contains dust particle pollution, and can be discharged to the atmosphere after passing through a dust removal device; but in practice these exhaust gases to the atmosphere also have a certain amount of heat, so it is considered to utilize this heat in the drying kiln.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a flue gas desulfurization denitration waste heat system of recycling is favorable to utilizing the heat of the flue gas after the current SOx/NOx control to the drying kiln in.

In order to solve the technical problem, the utility model adopts the following technical scheme: a flue gas desulfurization and denitrification waste heat recycling 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 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;

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;

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;

a flow guide cover is arranged on the air inlet; the section of the air guide sleeve is trapezoidal;

the lower edge of the air guide sleeve is hinged with a cover plate;

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

the further technical proposal is that the cover plate is also provided with a handle part.

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

1. 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;

2. 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 view of the top view structure of the partial structure of the present invention.

Fig. 3 is a schematic view of the front view structure of the partial structure of the present invention.

Fig. 4 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 discharge pipe; 7. a recovery pipe; 8. a drying kiln; 9. a flue; 10. an air inlet; 11. a base plate; 12. a side wall; 13. a top wall; 14. a pod; 15. a cover plate; 16. reinforcing ribs; 17. clamping ribs; 18. a handle.

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 4, a flue gas desulfurization and denitrification waste heat recycling 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 smoke exhaust pipe 5 is connected with a discharge pipe 6 and a recovery pipe 7 respectively; the recovery pipe 7 is connected with the drying kiln 8; a flue 9 is arranged at the lower part of the outer wall of the drying kiln 8; the flue 9 is connected with the recovery pipe 7; the flue 9 is communicated with the drying kiln 8 through an air inlet 10; 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 discharge pipe 6 and the recovery pipe 7 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 8 is a conventional drying kiln 8, a conventional exhaust device and a heating device are arranged on the drying kiln 8, and any reasonable structure of the drying kiln 8 can be selected according to needs; in the embodiment, the flue 9 and the recovery pipe 7 are connected in a conventional manner, and any reasonable fixed connection manner can be selected according to needs; in this embodiment, the recovery pipe 7 is provided with a conventional control valve, and any one of reasonable control valves can be selected as required.

The discharge pipe 6 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 7 is connected with the drying kiln 8, so that the treated flue gas can be selectively introduced into the drying kiln 8 according to the requirement, and the drying temperature of the drying kiln 8 can be adjusted by using the heat of the flue gas; set up flue 9 in the lower part of drying kiln 8, flue 9 is through near mouth and drying kiln 8 intercommunication, is favorable to hot-air to get into drying kiln 8 from the lower part of drying kiln 8 in, is favorable to utilizing the heat of flue gas, from the bottom up transfer heat in drying kiln 8, is favorable to cooperating the drying device of drying kiln 8, is favorable to adjusting the temperature in drying kiln 8 as required.

The flue 9 is U-shaped; the flue 9 is arranged on the outer wall of the drying kiln 8 in a surrounding manner; the recovery pipe 7 is connected with the middle part of the flue 9; in the embodiment, the flue 9 is U-shaped, which is beneficial to surrounding the drying kiln 8 and avoiding blocking the material from entering and exiting from the front end of the drying kiln 8; in this and forty miles, recovery tube 7 is connected with flue 9 middle part, is favorable to steam to get into flue 9 back diffusion to both sides from flue 9 middle part department, is favorable to improving the homogeneity of temperature in flue 9, is favorable to improving the utilization effect to the flue gas heat in flue 9.

The flue 9 comprises a bottom plate 11, side walls 12 and a top wall 13; the bottom plate 11, the side walls 12, the top wall 13 and the outer wall of the drying kiln 8 form a flue 9 together; the air inlet 10 is arranged on the outer wall of the drying kiln 8; in this embodiment, the bottom plate 11, the side walls 12 and the top wall 13 of the flue 9 are all made of conventional materials with certain mechanical strength and heat-insulating property, and any reasonable material can be selected according to requirements; the interior of the flue 9 and the interior of the drying kiln 8 are only separated by the side wall of the drying kiln 8, so that the utilization of heat is improved, the construction amount is reduced, meanwhile, the recovery pipe 7 is prevented from being directly communicated with the drying kiln 8, the potential safety hazard is reduced, and the safety performance is improved; in this embodiment, the air inlets 10 are disposed on the outer wall of the drying kiln 8, and the air inlets 10 are uniformly and reasonably disposed, so as to be suitable for arrangement as required, and facilitate uniform introduction of hot air into the drying kiln 8.

A flow guide cover 14 is arranged on the air inlet 10; the section of the air guide sleeve 14 is trapezoidal; in this embodiment, the air guide sleeve 14 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 14 and the air inlet 10 are connected by a conventional fixed connection method, for example, by bolts, nuts, etc.; the air guide sleeve 14 with the trapezoidal section is arranged on the air inlet 10, so that hot air can be guided to two sides and above uniformly, heat can be transferred uniformly, and the utilization effect of heat can be improved.

The lower edge of the air guide sleeve 14 is hinged with a cover plate 15; in this embodiment, the cover plate 15 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 the embodiment, the cover plate 15 and the material cover are connected by a conventional hinged connecting piece, and any hinged connecting piece with good heat resistance and reasonable structure can be selected according to the requirement; after the cover plate 15 is hinged to the lower edge of the air guide sleeve 14, the end portion of the air guide sleeve 14 can be flexibly turned over, the air guide sleeve 14 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 14 is provided with a reinforcing rib 16; the reinforcing ribs 16 are provided with clamping grooves; a clamping rib 17 is arranged at the edge of one side of the cover plate 15 corresponding to the clamping groove; in this embodiment, set up the draw-in groove on the strengthening rib 16, when apron 15 overturns and covers kuppe 14, accessible card muscle 17 and the being connected of draw-in groove realize the fixed to apron 15 position, are favorable to improving apron 15 and block up the stability of kuppe 14, are favorable to improving the flexibility that kuppe 14 used, are favorable to selectively using as required.

The cover plate 15 is also provided with a handle 18; in this embodiment, the handle 18 on the cover plate 15 is made of a conventional heat-conductive material with a certain mechanical strength, and any reasonable material can be selected according to the requirement; in this embodiment, the handle 18 portion adopts a conventional handle 18 structure, and by providing the handle 18 on the cover plate 15, it is advantageous to turn over the cover plate 15 flexibly as required, which is advantageous to improve the convenience of operation.

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

1. A flue gas desulfurization and denitrification waste heat recycling 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 method is characterized in that: the smoke exhaust pipe (5) is respectively connected with a discharge pipe (6) and a recovery pipe (7); the recovery pipe (7) is connected with the drying kiln (8); a flue (9) is arranged at the lower part of the outer wall of the drying kiln (8); the flue (9) is connected with the recovery pipe (7); the flue (9) is communicated with the drying kiln (8) through an air inlet (10).

2. The flue gas desulfurization and denitrification waste heat recycling system according to claim 1, characterized in that: the flue (9) is U-shaped; the flue (9) is arranged on the outer wall of the drying kiln (8) in a surrounding manner; the recycling pipe (7) is connected with the middle part of the flue (9).

3. The flue gas desulfurization and denitrification waste heat recycling system according to claim 2, characterized in that: the flue (9) comprises a bottom plate (11), side walls (12) and a top wall (13); the bottom plate (11), the side walls (12), the top wall (13) and the outer wall of the drying kiln (8) together enclose a flue (9); the air inlet (10) is arranged on the outer wall of the drying kiln (8).

4. The flue gas desulfurization and denitrification waste heat recycling system according to claim 1, characterized in that: a flow guide cover (14) is arranged on the air inlet (10); the cross section of the air guide sleeve (14) is trapezoidal.

5. The flue gas desulfurization and denitrification waste heat recycling system according to claim 4, characterized in that: the lower edge of the air guide sleeve (14) is hinged with a cover plate (15).

6. The flue gas desulfurization and denitrification waste heat recycling system according to claim 5, characterized in that: the upper edge of the air guide sleeve (14) is provided with a reinforcing rib (16); the reinforcing ribs (16) are provided with clamping grooves; and a clamping rib (17) is arranged at the edge of one side of the cover plate (15) corresponding to the clamping groove.

7. The flue gas desulfurization and denitrification waste heat recycling system according to claim 5, characterized in that: the cover plate (15) is also provided with a handle (18).