CN214809826U

CN214809826U - Desulfurization equipment

Info

Publication number: CN214809826U
Application number: CN202120529038.3U
Authority: CN
Inventors: 原辉; 赵楠; 桑伟逢
Original assignee: Shenhua Guohua Beijing Gas Fired Cogeneration Co ltd; Guohua Power Branch of China Shenhua Energy Co Ltd
Current assignee: Guoneng Guohua Beijing Gas Thermal Power Co Ltd; Guohua Power Branch of China Shenhua Energy Co Ltd
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2021-11-23
Anticipated expiration: 2031-03-11

Abstract

The embodiment of the application provides a desulfurization device, relates to environmental protection equipment technical field to solve and utilize the limestone to carry out the desulfurization, the limestone has certain extravagant problem. The desulfurization apparatus includes: the system comprises a desulfurizing tower, a slurry spraying device, a circulating pump, a pulping device, a dust remover, an ash hopper and an ash separator; the desulfurization tower is provided with a gas inlet to be desulfurized and a gas outlet to be desulfurized, the slurry spraying device is arranged between the gas inlet to be desulfurized and the gas outlet to be desulfurized, and the slurry spraying device sprays limestone slurry into the desulfurization tower; the slurrying device sets up in the desulfurizing tower below, and the slurrying device collects the thick liquid of following the desulfurizing tower whereabouts, treats that the desulfurized gas export is connected with the air inlet of dust remover, and the ash bucket setting is in the dust remover below, and the lime-ash sorter is connected with the ash bucket, and the lime-ash sorter is connected with the slurrying device, and the slurrying device passes through the circulating pump and is connected with thick liquid spray set. The application is used for desulfurizing flue gas.

Description

Desulfurization equipment

Technical Field

The application relates to the technical field of environmental protection equipment, in particular to desulfurization equipment.

Background

The reaction of limestone emulsion and sulfur dioxide is used for desulfurization, which is a conventional desulfurization method. When the limestone emulsion is used for desulfurization, part of unreacted limestone can be destroyed along with the reacted limestone discharged from the desulfurization tower. This results in a waste of limestone.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a desulfurization device to solve and utilize the limestone to carry out the desulfurization, the limestone has certain extravagant problem.

The embodiment of the application provides a sweetener, the sweetener includes: the system comprises a desulfurizing tower, a slurry spraying device, a circulating pump, a pulping device, a dust remover, an ash hopper and an ash separator; the desulfurization tower is provided with a gas inlet to be desulfurized and a gas outlet to be desulfurized, the slurry spraying device is arranged between the gas inlet to be desulfurized and the gas outlet to be desulfurized, and the slurry spraying device sprays limestone slurry into the desulfurization tower; the pulping device is arranged below the desulfurizing tower and used for collecting slurry falling from the desulfurizing tower, the gas outlet to be desulfurized is connected with the gas inlet of the dust remover, the ash hopper is arranged below the dust remover and used for collecting ash discharged from the dust remover, the ash separator is connected with the ash hopper and used for separating unreacted ash from the ash collected by the ash hopper, the ash separator is connected with the pulping device, and the pulping device is connected with the slurry spraying device through the circulating pump.

Optionally, the desulfurization equipment further comprises a waste heat recovery device, and the waste heat recovery device is arranged between the gas inlet to be desulfurized and the slurry spraying device.

Optionally, the desulfurization apparatus further comprises a demister, which is disposed between the gas outlet to be desulfurized and the gas inlet of the dust remover.

Optionally, the demister is connected to the waste heat recovery device, and the waste heat recovery device provides heat energy to the demister.

Optionally, the slurrying device includes a slurry container and a stirrer, the stirrer extending into the slurry container, and the slurry container being disposed below the desulfurization tower.

Optionally, a water supply port and a limestone feed port are arranged on the slurry container.

Optionally, the dust remover is a bag dust remover.

Optionally, the dust collector comprises a cloth bag and a rapper for rapping the cloth bag.

Optionally, the ash classifier comprises a screening structure that separates unreacted ash from the ash collected by the hopper.

Optionally, the desulfurization equipment further comprises an induced draft fan, and the induced draft fan is connected with the gas outlet of the dust remover.

The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:

in the embodiment of this application, can utilize the thick liquid spray set to spray the lime stone thick liquid in to the desulfurizing tower, form the lime stone thick liquid atomizing district, can be so that the gas of waiting to desulfurize that gets into from waiting to desulfurize the gas inlet discharges to waiting to desulfurize the gas export behind the lime stone thick liquid atomizing district. In the embodiment of this application, treat that the desulfurization gas outlet is connected with the air inlet of dust remover, can utilize the dust remover to treat the desulfurization gas outlet combustion gas and remove dust and handle, can absorb the limestone particles in the gas, can discharge the limestone particles to the ash bucket in, the limestone particles who collects in the ash bucket can be sorted through lime-ash sorter, can carry the unreacted ash material of sorting to slurrying device. In addition, unreacted slurry in the limestone slurry atomization zone may fall into the slurrying device. Therefore, unreacted limestone can be conveyed to the pulping device again for use, and waste of limestone can be reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or related technologies of the present application, the drawings needed to be used in the description of the embodiments or related technologies are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

Fig. 1 is a schematic view of a desulfurization apparatus provided in an embodiment of the present application.

Description of reference numerals: 100-a desulfurization unit; 110-a desulfurizing tower; 1101-gas inlet to be desulphurized; 1102-gas outlet to be desulfurized; 120-slurry spray means; 130-circulation pump; 140-a pulping device; 150-a dust remover; 1501-cloth bag; 1502-a rapper; 160-ash bucket; 170-ash separator; 1801-a waste heat recovery device; 1802-a demister; 1803-induced draft fan.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

The embodiment of the application provides desulfurization equipment. Referring to fig. 1, a desulfurization apparatus 100 provided in an embodiment of the present application may include: the desulfurization tower 110, the slurry spray device 120, the circulation pump 130, the pulping device 140, the dust collector 150, the ash bucket 160 and the ash separator 170. The desulfurization tower 110 may have a gas inlet 1101 to be desulfurized and a gas outlet 1102 to be desulfurized, the slurry spray device 120 may be disposed between the gas inlet 1101 to be desulfurized and the gas outlet 1102 to be desulfurized, and the slurry spray device 120 may spray limestone slurry into the desulfurization tower 110; the pulping device 140 is arranged below the desulfurizing tower 110, the pulping device 140 can collect slurry falling from the desulfurizing tower 110, the gas outlet 1102 to be desulfurized is connected with the gas inlet of the dust remover 150, the ash hopper 160 is arranged below the dust remover 150, the ash hopper 160 collects ash discharged from the dust remover 150, the ash separator 170 is connected with the ash hopper 160, the ash separator 170 separates unreacted ash from the ash collected by the ash hopper 160, the ash separator 170 is connected with the pulping device 140, and the pulping device 140 is connected with the slurry spraying device 120 through the circulating pump 130.

In this way, in the embodiment of the present application, the slurry spraying device 120 may be used to spray limestone slurry into the desulfurization tower 110 to form a limestone slurry atomization zone, so that the gas to be desulfurized entering from the gas inlet 1101 to be desulfurized may be discharged to the gas outlet 1102 to be desulfurized after passing through the limestone slurry atomization zone. In the embodiment of the present application, the gas outlet 1102 to be desulfurized is connected to the gas inlet of the dust collector 150, the gas exhausted from the gas outlet 1102 to be desulfurized can be dedusted by the dust collector 150, limestone particles in the gas can be absorbed, the limestone particles can be exhausted to the ash bucket 160, the limestone particles collected in the ash bucket can be sorted by the ash separator 170, and the sorted unreacted ash can be conveyed to the pulping apparatus 140. In addition, unreacted slurry in the limestone slurry atomization zone may fall into the slurrying device 140. In this way, the unreacted limestone can be conveyed to the pulping device 140 again for use, and the waste of limestone can be reduced.

Optionally, in an embodiment of the present application, the desulfurization apparatus 100 may further include a waste heat recovery device 1801, and the waste heat recovery device 1801 may be disposed between the gas inlet 1101 to be desulfurized and the slurry spray device 120. In this way, the waste heat recovery device 1801 can be used to absorb the heat carried in the flue gas introduced into the desulfurization tower 110. The desulfurization apparatus 100 may further include a demister 1802, the demister 1802 being disposed between the gas outlet 1102 to be desulfurized and the gas inlet of the dust collector 150. The demister 1802 is connected to the heat recovery device 1801, and the heat recovery device 1801 supplies heat energy to the demister 1802. In this way, the gas to be desulfurized can be dried by the demister 1802.

Alternatively, in an embodiment of the present application, the slurrying device 140 may include a slurry vessel into which the agitator extends, and a slurry vessel disposed below the desulfurization tower 110. Like this, can utilize the agitator to stir the lime stone solution, be convenient for the dissolution of lime stone.

Optionally, in the embodiment of the present application, a water supply port and a limestone feed port are provided on the slurry container. Thus, limestone can be fed into the slurry container through the limestone feed port to replenish limestone. Water may be put into the slurry container as a solvent by using the water supply port.

Alternatively, in embodiments of the present application, the dust collector 150 may be a bag-type dust collector. The dust collector 150 may comprise a cloth bag 1501 and a rapper 1502, the rapper 1502 being used to rapper the cloth bag 1501. In this way, the ash accumulated on the cloth bag 1501 can be cleaned in a vibration beating mode.

Alternatively, in embodiments of the present application, the ash classifier 170 may include a screening structure that separates unreacted ash from the ash collected by the ash hopper 160. The reacted limestone can be agglomerated, and the unreacted limestone is not easy to agglomerate, so that the reacted limestone has larger particles, and the unreacted ash can be sorted out in a screening mode.

Optionally, in an embodiment of the present application, the desulfurization apparatus 100 may further include an induced draft fan 1803, where the induced draft fan 1803 is connected to the air outlet of the dust remover 150. In this way, the induced draft fan 1803 can be used to smoothly convey the gas discharged from the gas outlet 1102 to be desulfurized to the dust collector 150 for dust removal treatment.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present application 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 embodiments of the application, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A desulfurization apparatus, characterized in that it comprises: the system comprises a desulfurizing tower (110), a slurry spraying device (120), a circulating pump (130), a pulping device (140), a dust remover (150), an ash bucket (160) and an ash separator (170); the desulfurization tower (110) is provided with a gas inlet (1101) to be desulfurized and a gas outlet (1102) to be desulfurized, the slurry spraying device (120) is arranged between the gas inlet (1101) to be desulfurized and the gas outlet (1102) to be desulfurized, and the slurry spraying device (120) sprays limestone slurry into the desulfurization tower (110); the pulping device (140) is arranged below the desulfurization tower (110), the pulping device (140) collects slurry falling from the desulfurization tower (110), the gas outlet (1102) to be desulfurized is connected with the gas inlet of the dust remover (150), the ash hopper (160) is arranged below the dust remover (150), the ash hopper (160) collects ash discharged from the dust remover (150), the ash separator (170) is connected with the ash hopper (160), the ash separator (170) separates unreacted ash from the ash collected by the ash hopper (160), the ash separator (170) is connected with the pulping device (140), and the pulping device (140) is connected with the slurry spraying device (120) through the circulating pump (130).

2. The desulfurization apparatus according to claim 1, further comprising a waste heat recovery device (1801), wherein said waste heat recovery device (1801) is disposed between said gas inlet (1101) to be desulfurized and said slurry spray device (120).

3. A desulphurisation apparatus according to claim 2 further comprising a demister (1802), the demister (1802) being disposed between the gas outlet (1102) to be desulphurised and the gas inlet of the dust separator (150).

4. A devulcanizing apparatus according to claim 3, characterized in that the demister (1802) is connected to the waste heat recovery device (1801), the waste heat recovery device (1801) providing heat energy to the demister (1802).

5. Desulfurization plant according to claim 1, characterized in that said slurrying device (140) comprises a slurry container and an agitator, said agitator extending into said slurry container, said slurry container being arranged below said desulfurization tower (110).

6. The desulfurization apparatus according to claim 5, wherein a water supply port and a limestone feed port are provided on the slurry container.

7. A desulfurization apparatus in accordance with claim 1, characterized in that said dust separator (150) is a bag-type dust separator.

8. A desulphurization apparatus according to claim 7, characterized in that the dust collector (150) comprises a cloth bag (1501) and a rapper (1502), the rapper (1502) being adapted to rapper the cloth bag (1501).

9. A desulphurisation plant according to claim 1, characterized in that said ash separator (170) comprises a sieve structure that separates unreacted ash from the ash collected in the hopper (160).

10. The desulfurization apparatus according to claim 1, further comprising an induced draft fan (1803), wherein the induced draft fan (1803) is connected with the air outlet of the dust remover (150).