CN211476749U

CN211476749U - Waste heat utilization system of calcining machine

Info

Publication number: CN211476749U
Application number: CN201922239956.8U
Authority: CN
Inventors: 余青霖; 王勇; 唐天明
Original assignee: Wuhan Daily Building Materials Technology Co ltd
Current assignee: Wuhan Daily Building Materials Technology Co ltd
Priority date: 2019-12-14
Filing date: 2019-12-14
Publication date: 2020-09-11
Anticipated expiration: 2029-12-14

Abstract

The utility model discloses a calcining machine waste heat utilization system, including calcining machine, calcining machine is put through with exhaust-heat boiler through discharging fume the pipe mutually, exhaust-heat boiler passes through one side of steam pipe and heat pump and is put through, the heat pump passes through conducting strip and steam generator fixed connection, steam generator passes through the steam pipe and puts through with the turbine mutually, the turbine passes through the axle and rotates with the generator and be connected, exhaust-heat boiler's outlet flue puts through the blow vent of discharging fume the pipe and seting up with purifying box one end mutually and puts through, just the fan is installed in the discharge fume pipe that exhaust-heat boiler put through mutually with the purifying box. The utility model discloses a cooperation of exhaust-heat boiler and heat pump is used, utilizes the turbo generator with the waste heat recovery in the calciner to turn into the electric energy, has avoided the waste heat to discharge the wasting of resources that causes behind the water-cooling, adopts the condenser simultaneously, can recycle the leading-in steam generator of the steam recondensation after utilizing and recycle, has further improved the use of resource.

Description

Waste heat utilization system of calcining machine

Technical Field

The utility model relates to a calcining machine waste heat utilization technology field specifically is a calcining machine waste heat utilization system.

Background

The calcining furnace is one of main devices in a carbon production process, can calcine petroleum coke with different volatile matter contents, and has the advantages of stable quality of a calcined material, low carbon burning loss rate, high stacking density of calcined coke, simplicity in operation, small maintenance workload, long continuous production period and the like, so that the calcining furnace is widely applied to carbon plants, aluminum plants and coke industries.

However, the heat absorption of the raw material in the calcination only accounts for 33.5% of the heat expenditure of the calciner, and the heat taken away by the calcination flue gas accounts for 47.9% of the heat expenditure of the whole calciner, and the flue gas of the calciner has an obvious characteristic that the flue gas temperature is high, but the flue gas amount is small, so that the waste heat recovery of the high-temperature flue gas of the calciner in a carbon plant is not positive, and a large amount of resources are wasted. Therefore, it is desirable to provide a waste heat utilization system for a calciner.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a calcining machine waste heat utilization system uses through the cooperation of exhaust-heat boiler and heat pump, utilizes turbo generator with the waste heat recovery in the calcining furnace and turns into the electric energy, has avoided the waste heat to discharge the wasting of resources that causes behind the water-cooling, adopts the condenser simultaneously, can retrieve leading-in steam generator of steam recondensation after utilizing and recycle, has further improved the use of resource to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a calcining machine waste heat utilization system, including the calcining machine, the exhaust port of calcining machine is put through mutually through the smoke inlet of discharging fume pipe with exhaust-heat boiler, exhaust-heat boiler's steam outlet is met logical through one side of steam pipe with the heat pump, one side fixedly connected with conducting strip of heat pump, one side fixedly connected with steam generator of conducting strip, steam generator's one end is met logical through the one end of steam pipe with the steam turbine, the steam turbine passes through the axle and rotates with the generator to be connected, exhaust-heat boiler's outlet flue is put through mutually through the blow vent that exhaust fume pipe and purge bin one end were seted up, just exhaust-heat boiler and the intraductal fixed mounting that discharges fume that the purge bin put through mutually have the fan.

Preferably, the smoke exhaust pipe is an iron clamp type glass fiber cloth high-temperature resistant smoke exhaust pipe.

Preferably, the steam pipe is a glass wool heat preservation steam pipe.

Preferably, one end of the steam turbine is communicated with the condenser through a steam pipe, and one end of the condenser is communicated with the steam generator through a soft water pipe.

Preferably, one end of the purification box is provided with a water replenishing port, and the upper end of the purification box is provided with an exhaust port.

Preferably, the purifying box comprises a box cover, an external thread opening is formed in the lower portion of the box cover, the external thread opening is in threaded connection with an internal thread opening formed in the box body, a meshed iron plate is fixedly connected to the inside of the box body, and an activated carbon plate is arranged at the upper end of the meshed iron plate.

Compared with the prior art, the beneficial effects of the utility model are that: the cooperation through exhaust-heat boiler and heat pump is used, utilizes turbo generator to turn into the electric energy with the waste heat recovery in the calciner, has avoided the waste of resources that the waste heat discharged the cause after the water-cooling, adopts the condenser simultaneously, can recycle the leading-in steam generator of the steam recondensation recovery after utilizing and recycle, has further improved the use of resource.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view of the purifying box of the present invention;

fig. 3 is a schematic diagram of the section structure explosion of the purification box of the present invention.

In the figure: 1. a calcining machine; 2. a smoke exhaust pipe; 3. a waste heat boiler; 4. a steam pipe; 5. a heat pump; 6. a heat conductive sheet; 7. a steam generator; 8. a steam turbine; 9. a generator; 10. a condenser; 11. a flexible water pipe; 12. a fan; 13. a vent; 14. a purification box; 15. a box cover; 1501. an external thread opening; 16. a box body; 1601. an internal threaded port; 17. a water replenishing port; 18. an exhaust port; 19. an activated carbon plate; 20. a mesh-shaped iron plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a calcining machine waste heat utilization system, including calcining machine 1, calcining machine 1's exhaust port is put through with exhaust-heat boiler 3's the mouth that advances of discharging fume 2 mutually, exhaust-heat boiler 3's steam outlet is put through mutually with one side of heat pump 5 through steam pipe 4, one side fixedly connected with conducting strip 6 of heat pump 5, one side fixedly connected with steam generator 7 of conducting strip 6, steam generator 7's one end is passed through steam pipe 4 and is met logical with the one end of steam turbine 8, steam turbine 8 rotates with generator 9 through the axle and is connected, exhaust-heat boiler 3's outlet flue is met logical through vent 13 that exhaust-fume 2 and purge bin 14 one end were seted up, and exhaust-heat boiler 3 and purge bin 14 internal fixation of 2 that put through have fan 12.

In actual implementation: the pipe of discharging fume 2 sets up to the fine cloth high temperature resistant pipe of discharging fume of iron clamp formula glass, guaranteed that the flue gas is effectual to be transmitted, steam pipe 4 sets up to the cotton heat preservation steam pipe of glass, guaranteed that the steam is effectual to be transmitted, steam pipe 4 is passed through to steam turbine 8's one end and condenser 10 is put through mutually, and there is steam generator 7 condenser 10's one end through the switch-on of water hose 11, the utilization ratio of resource has been improved, water replenishing mouth 17 has been seted up to the one end of purifying box 14, and purifying box 14's upper end has seted up gas vent 18, purifying box 14 is including case lid 15, the lower part of case lid 15 is provided with external screw thread mouth 1501, internal screw thread mouth 1601 threaded connection who sets up on external screw thread mouth 1501 and the box 16, and the netted iron plate 20 of inside fixedly connected with of box 16, and the upper.

The specific use description is as follows: high-temperature flue gas generated in the calcining machine 1 and the smoke exhaust pipe 2 are led into a waste heat boiler 3, the waste heat boiler 3 generates high-temperature steam and leads the high-temperature steam into a heat pump 5 through a steam pipe, the heat pump 5 collects a large amount of heat and quickly transfers the heat to a steam generator 7 through a heat conducting fin 6, the steam generated by the steam generator 7 is transferred to a steam turbine generator (with the model of QFW-21-2A) formed by combining a steam turbine 8 and a generator 9 through a steam pipe 4 and is converted into electric energy, and the redundant steam is condensed into water by the steam turbine 8 through the condenser 10 and then is guided into the steam generator 7 through the soft water pipe 11 for recycling, so that the high-efficiency utilization of resources is ensured, finally, the low-temperature flue gas is extracted by the fan 12 and enters the purifying box 14, the water is filtered for the first time, and then the water is filtered for the second time by the activated carbon plate 19 and then is discharged by the exhaust port 18, so that the pollution of smoke emission is effectively reduced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a calcining machine waste heat utilization system, includes calcining machine (1), its characterized in that: the smoke outlet of the calcining machine (1) is communicated with the smoke inlet of the waste heat boiler (3) through a smoke outlet pipe (2), the steam outlet of the waste heat boiler (3) is communicated with one side of the heat pump (5) through a steam pipe (4), one side of the heat pump (5) is fixedly connected with a heat conducting fin (6), one side of the heat conducting fin (6) is fixedly connected with a steam generator (7), one end of the steam generator (7) is communicated with one end of a steam turbine (8) through a steam pipe (4), the steam turbine (8) is rotationally connected with the generator (9) through a shaft, a smoke outlet of the waste heat boiler (3) is communicated with a vent (13) arranged at one end of a purifying box (14) through a smoke exhaust pipe (2), and a fan (12) is fixedly arranged in the smoke exhaust pipe (2) communicated with the waste heat boiler (3) and the purification box (14).

2. The waste heat utilization system of the calcining machine as claimed in claim 1, characterized in that: the smoke exhaust pipe (2) is an iron clamp type glass fiber cloth high-temperature resistant smoke exhaust pipe.

3. The waste heat utilization system of the calcining machine as claimed in claim 1, characterized in that: the steam pipe (4) is a glass wool heat-preservation steam pipe.

4. The waste heat utilization system of the calcining machine as claimed in claim 1, characterized in that: one end of the steam turbine (8) is communicated with the condenser (10) through the steam pipe (4), and one end of the condenser (10) is communicated with the steam generator (7) through the soft water pipe (11).

5. The waste heat utilization system of the calcining machine as claimed in claim 1, characterized in that: a water replenishing opening (17) is formed in one end of the purification box (14), and an exhaust opening (18) is formed in the upper end of the purification box (14).

6. The waste heat utilization system of the calcining machine as claimed in claim 1, characterized in that: purifying box (14) is including case lid (15), the lower part of case lid (15) is provided with external screw thread mouth (1501), internal screw thread mouth (1601) threaded connection that external screw thread mouth (1501) and box (16) set up, just the inside fixedly connected with netted iron plate (20) of box (16), just the upper end of netted iron plate (20) is provided with activated carbon board (19).