CN217746173U

CN217746173U - Intensive desulphurization unit

Info

Publication number: CN217746173U
Application number: CN202222132429.9U
Authority: CN
Inventors: 尤毅
Original assignee: Shanxi Violet Environmental Protection Technology Co ltd
Current assignee: Shanxi Violet Environmental Protection Technology Co ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2022-11-08
Anticipated expiration: 2032-08-12

Abstract

The utility model relates to an intensive desulphurization unit relates to sweetener's field, and it includes desulfurization subassembly, retrieves the subassembly and provides the drive assembly of power for the solution transportation with the gypsum of desulfurization subassembly intercommunication, and the gypsum is retrieved the subassembly and is included the rotatory separator box that is linked together with the desulfurization subassembly, rotate the rose box of being connected and the gypsum collecting box that is linked together with the rose box with the rotatory separator box, the apopore has been seted up on the rotatory separator box, and the device is simple simultaneously, is applicable to the recovery of middle-size and small-size mill to wet flue gas desulfurization accessory substance gypsum.

Description

Intensive desulphurization unit

Technical Field

The application relates to the field of desulfurization equipment, in particular to an intensive desulfurization device.

Background

In China, which is a coal-fired energy structure, coal-fired power plants, steel plants and other industries which use coal as fuel in large quantities, sulfur dioxide is generated by combustion of coal in the production process, and the emission of sulfur dioxide from coal is increased with the continuous increase of coal consumption, so that serious environmental problems are caused, wherein one of the main problems is 'environmental acidification'. Therefore, flue gas desulfurization is an essential process. The wet flue gas desulfurization method comprises the following five methods: the calcium method based on CaCO3 (limestone), the magnesium method based on MgO, the sodium method based on NaOH, the ammonia method based on NH3, the organic base method based on organic bases.

The conventional wet desulfurization method based on limestone is characterized in that limestone slurry for absorbing sulfur dioxide enters a circulating oxidation zone and is oxidized into reactant generation liquid containing gypsum crystals, and the reactant generation liquid is dehydrated to generate byproduct gypsum. Conventional gypsum dewatering systems typically include a primary dewatering system and a secondary dewatering system. The first-stage dehydration system equipment is a gypsum cyclone, gypsum slurry is concentrated and separated, and the gypsum slurry with high slurry density at the bottom of the cyclone enters a second-stage dehydration system for continuous dehydration. The secondary dewatering system mainly comprises a dewatering machine, generally a vacuum belt dewatering machine or a disc type dewatering machine, and finally generates a gypsum product (CaSO4.2H2O) with the water content of less than 10 percent. The method has great significance for processing and utilizing the by-product gypsum, not only powerfully promotes the further development of the national environmental-friendly recycling economy, but also greatly reduces the mining amount of the mineral gypsum and protects resources.

In view of the above-mentioned related technologies, the inventor considers that the conventional gypsum recovery equipment is complex and is not suitable for some small and medium-sized factories.

SUMMERY OF THE UTILITY MODEL

In order to solve the recovery problem of middle-size and small-size mill to wet flue gas desulfurization accessory substance gypsum, this application provides an intensive desulphurization unit.

The application provides an intensive desulphurization unit adopts following technical scheme:

the utility model provides an intensive desulphurization unit, including desulfurization subassembly, with the gypsum recovery subassembly of desulfurization subassembly intercommunication and the drive assembly who provides power for solution transportation, the gypsum recovery subassembly include with the rotatory separator box that desulfurization subassembly is linked together, with rotatory separator box rotate the rose box of connecting and with the gypsum collecting box that the rose box is linked together, the apopore has been seted up on the rotatory separator box.

Through adopting above-mentioned technical scheme, the flue gas has stored the gypsum thick liquid in desulfurization subassembly bottom after the desulfurization of desulfurization subassembly, and the gypsum thick liquid gets into the gypsum recovery subassembly, gets rid of a large amount of water in the gypsum thick liquid, draws, collects the gypsum solid. The specific process is that the gypsum slurry enters the rotary separation box, the gypsum slurry is concentrated and separated through high-speed rotation of the rotary separation box, liquid with low concentration is discharged out of the rotary separation box through the water outlet holes, the slurry with high concentration enters the filter box, more water is removed under the further filtration of the filter box, and finally, filtered gypsum substances are transmitted to the gypsum collecting box to be collected.

Optionally, a water storage tank for receiving the liquid flowing out of the water outlet hole is covered on the periphery of the rotary separation tank, and the water storage tank is fixedly connected with the filter tank.

By adopting the technical scheme, the liquid splashed from the water outlet hole is prevented from being discharged in the environment.

Optionally, a first filter plate is obliquely arranged in the filter box.

Through adopting above-mentioned technical scheme, a large amount of water filters in with the gypsum thick liquid first filter, obtains the gypsum thick liquid that the water content is lower.

Optionally, a second filter plate is arranged in the rotary separation box.

Through adopting above-mentioned technical scheme, avoid rotating the separator box when high-speed rotatory effectively, concentrated thick liquid also upwards moves along with the solution that contains little gypsum, and then causes the separation failure.

Optionally, a discharge port is formed in one side of the filter box, and the first filter plate is inclined downwards from a position far away from the discharge port to a position close to the discharge port.

Through adopting above-mentioned technical scheme, be favorable to the material on the filter to slide by oneself in to the gypsum collecting box.

Optionally, the first filter extends to the gypsum collecting box outside the filter box the first filter is close to the top of discharge gate is provided with drying assembly, drying assembly includes the mounting bracket and install in drying fan and cover on the mounting bracket are located drying fan outlying windshield.

Through adopting above-mentioned technical scheme, the thick gypsum thick liquid of roll-off on following first filter, under the effect of stoving subassembly, can be favorable to the recovery of gypsum with the evaporation of a large amount of moisture in the thick gypsum thick liquid.

Optionally, outside the filter box, the first filter is close to the vibrating motor is installed to the one end of discharge gate.

Through adopting above-mentioned technical scheme, when shock dynamo during operation, drive the filter vibrations, and then be favorable to the material on the filter to slide to the gypsum case fast in, and then improved recovery efficiency.

Optionally, the system further comprises a limestone slurry pool communicated with the desulfurization assembly, a process pool communicated with the limestone slurry pool, an accident slurry pool communicated with the desulfurization assembly, a powder tank arranged above the limestone slurry and used for storing limestone, and an operation box for controlling the operation of each assembly.

By adopting the technical scheme, the limestone slurry pool is used for preparing a limestone solution for desulfurization; the process water tank is used for storing industrial water used in the limestone slurry preparation and desulfurization component; the accident slurry pool is used as a temporary storage container for limestone slurry during maintenance of the desulfurization component, and when the desulfurization component fails or is overhauled, the slurry in the desulfurization component can be discharged into the accident slurry pool; the limestone powder tank is arranged above the limestone slurry, so that the preparation of the limestone slurry is convenient.

Optionally, the limestone slurry pool, the process pool and the accident slurry pool are all arranged on the first underground layer, the driving assembly, the desulfurization assembly and the gypsum collecting box are all arranged on the first underground layer, the powder tank is arranged on the first underground layer, the operation box and the gypsum recovery assembly are arranged on the second underground layer, an opening of the powder tank is arranged on the second underground layer, and the operation box is arranged on the second underground layer.

Through adopting above-mentioned technical scheme, different subassemblies distribute at different floors according to its mutual contact, not only practice thrift area, save the electric energy that the transportation needs to consume moreover. The opening and the operation box of the powder tank are arranged on the same layer, so that feeding of the powder tank is facilitated when workers control the on-off of each component, operators are prevented from working on different floors, and manpower is saved.

Optionally, the powder tank is arranged above the limestone slurry pool, and the gypsum recovery assembly is arranged above the gypsum collection box.

By adopting the technical scheme, the desulfurized gypsum is directly transmitted into the gypsum collecting box without being driven by electric energy, thereby being beneficial to saving energy.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the first filter plate is obliquely arranged, so that the desulfurized gypsum can automatically slide in the gypsum collecting box, an additional driving component is not needed, and the energy is saved;

2. the second filter plate is arranged in the rotary separation box, so that concentrated gypsum slurry is effectively prevented from flying out of a water outlet hole along with the rising of a solution with a very small gypsum content when the rotary separation box rotates at a high speed, and further separation failure is caused;

3. through installing shock dynamo on first filter, drive the filter vibrations, be favorable to the material on the filter to slide to the gypsum case fast in, improved the efficiency that the gypsum was retrieved effectively.

Drawings

FIG. 1 is a schematic structural view of an intensive desulfurization unit according to an embodiment;

FIG. 2 is a schematic view of a hidden water storage tank of a gypsum recovery assembly of an intensive desulfurization device in an embodiment;

FIG. 3 is a schematic structural diagram of a gypsum recovery module of an intensive desulfurization device in an embodiment.

Description of reference numerals: 1. a limestone slurry pool; 2. a process water pool; 3. an accident slurry tank; 4. a desulfurization assembly; 5. a gypsum recovery assembly; 51. a rotating separator; 511. a feeding port; 512. a sealing cover; 513. a water outlet hole; 514. a second filter plate; 52. a filter box; 521. a first filter plate; 522. a discharge port; 523. vibrating a motor; 53. a drying assembly; 531. a mounting frame; 532. drying the fan; 533. a windshield; 54. a gypsum collecting box; 55. a wastewater collection tank; 56. a water storage tank; 6. a powder tank; 7. an operation box; 8. a drive assembly; 81. a first pump body; 82. a second pump body; 83. and a third pump body.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

Referring to fig. 1, the embodiment of the application discloses an intensive desulfurization device, which comprises a limestone slurry pool 1, a process water pool 2, an accident slurry pool 3, a desulfurization component 4 and a gypsum recovery component 5. The process water tank 2 is communicated with the limestone slurry tank 1 to provide aqueous solution for preparing limestone slurry, and the process water tank 2 is also communicated with the desulfurization component 4 to spray and clean impurities attached in the desulfurization component 4. Accident thick liquid pond 3 is linked together with desulfurization subassembly 4, and its effect is as the interim storage vessel of the gypsum thick liquid in desulfurization subassembly 4 when desulfurization subassembly 4 overhauls, and when desulfurization subassembly 4 broke down or overhaul, the gypsum thick liquid can be discharged into accident thick liquid pond 3. The gypsum recovery component 5 is communicated with the desulfurization component 4, and gypsum slurry stored at the bottom of the desulfurization component 4 is conveyed to the gypsum recovery component 5 to purify and collect gypsum.

The lime slurry pool also comprises a powder tank 6 which is arranged above the limestone slurry pool 1 and used for storing limestone powder, so that the preparation of limestone slurry is convenient. An operation box 7 for controlling the operation of each component is arranged beside the powder tank 6; a driving component 8 for providing power for solution transportation is arranged beside the desulphurization component 4; a gypsum collection tank 54 and a waste water collection tank 55 are provided under the gypsum recovery assembly 5. The drive assembly 8 comprises a first pump 81 to convey the industrial water to the limestone slurry tank 1, a second pump 82 to convey the industrial water to the desulfurization assembly 4, and a third pump 83 to convey the waste liquid in the desulfurization assembly 4 to the gypsum recovery assembly 5.

The limestone slurry pool 1, the process pool 2 and the accident slurry pool 3 are arranged on the first underground layer, the driving component 8, the desulphurization component 4 and the gypsum collecting box 54 are arranged on the second underground layer, the powder tank 6 is arranged on the first underground layer, and the opening is arranged on the second underground layer. The intensive desulfurization device distributes different components on different floors, so that the occupied area is saved, and in addition, the powder tank 6 is arranged above the limestone slurry pool 1, so that the preparation of limestone slurry is facilitated; the opening of the powder tank 6 and the operation box 7 are arranged on the same layer, so that the powder tank 6 can be conveniently fed and the operation box 7 can be conveniently controlled to be operated on the same floor, and the labor is saved; the gypsum recovery component 5 is arranged on the three layers above the ground, and the gypsum collecting box 54 is arranged on the two layers above the ground, so that the desulfurized gypsum can automatically fall into the gypsum collecting box 54 under the action of gravity, a special transmission device is not needed, and the consumption of electric energy is saved.

Referring to fig. 1 and 2, the gypsum recovery assembly 5 includes a rotary separator 51, a filter box 52 rotatably connected to the rotary separator 51, a drying assembly 53 disposed outside the filter box 52, and a gypsum collection box 54 for receiving desulfurized gypsum, and a waste water collection box 55 is disposed beside the gypsum collection box 54 for receiving a solution generated during the gypsum recovery process.

Referring to fig. 2 and 3, a feeding port 511 is formed at the top end of the rotary separator 51, a sealing cover 512 is arranged on the feeding port 511, four water outlet holes 513 are formed in the side wall of the rotary sealing box, a water storage tank 56 is arranged outside the rotary separating box in a covering manner, the water storage tank 56 is fixedly connected with the filter box 52, the water storage tank 56 is used for containing liquid splashed from the water outlet holes 513, and a second filter plate 514 is arranged in the rotary separator 51. The slurry is conveyed into the rotary separator 51, the sealing cover 512 is closed, the rotary separator 51 rotates at a high speed, primary concentration and separation are carried out on the slurry, the liquid with less gypsum flies and is separated out from the water outlet hole 513 and enters the water storage tank 56, and the high-concentration gypsum slurry enters the filter tank 52 for next separation. The provision of the second filter plates 514 effectively prevents the slurry of high concentration from rising with the high speed rotation of the rotating separation chamber, thereby causing a separation failure. A water outlet 561 is disposed at the bottom of the water storage tank 56, and the water outlet 561 transmits the waste liquid in the water storage tank 56 to the waste water collection tank 55 through a pipe.

The first filter plate 521 is obliquely arranged in the filter box 52, the first filter plate 521 extends from the filter box 52 to the gypsum collecting box 54, the waste liquid with low concentration directly flows into the waste water collecting box through the first filter plate 521, and the desulfurized gypsum is subjected to subsequent processes through the first filter plate 521. The first filter plate 521 is in clearance fit with the filter box 52, so that the slurry is effectively prevented from passing through the gap between the filter plate and the inner wall of the filter box 52, and the filtering effect cannot be achieved. A discharge hole 522 is formed in one side of the filter box 52, the first filter plate 521 inclines downwards from one end arranged in the filter box 52 to one end close to the gypsum collecting box 54, so that the desulfurization gypsum can slide downwards automatically, a component specially used for conveying the desulfurization gypsum does not need to be arranged, and energy is saved. The vibrating motor 523 is installed to the one end that first filter 521 is close to discharge gate 522, at vibrating motor 523 during operation, drives the filter vibrations, and then is favorable to the quick gliding of desulfurization gypsum on the filter to the gypsum collecting box 54 in, and then has improved recovery efficiency.

The drying component 53 is arranged above the first filter plate 521, which is close to the discharge port 522, the drying component 53 is arranged outside the filter box 52, the drying component 53 comprises a mounting frame 531 fixed on the bottom surface, a drying fan 532 arranged on the mounting frame 531, and a wind shield 533 covering the periphery of the drying fan 532, the wind shield 533 is positioned above the first filter plate 521, and the wind shield 533 concentrates hot air blown out by the drying fan 532 on the filter plate to improve the evaporation rate of moisture contained in the desulfurized gypsum. The desulfurized gypsum sliding out from the first filter plate 521 is dried by the drying component 53 and finally falls into the gypsum collecting box 54, and the waste water filtered by the first filter plate 521 is received by the waste water collecting box 55, so that waste liquid containing part of gypsum substances is prevented from being directly discharged into the environment, and resource waste is avoided.

The implementation principle of an intensive desulfurization device in the embodiment of the application is as follows: after the limestone slurry plays a role of removing sulfur dioxide in flue gas, the formed gypsum slurry is gathered at the bottom of the desulfurization component 4 and is conveyed into the gypsum recovery component 5 through the conveying component, the gypsum slurry is preliminarily concentrated and separated through the rotary separation box, the slurry with lower concentration is separated from the rotary separation box, and finally the slurry enters the wastewater collection box 55 for subsequent treatment; the high gypsum thick liquid of concentration gets into the rose box 52, and unnecessary moisture passes through first filter 521, and the desulfurization gypsum slides in gypsum collecting box 54 through discharge gate 522 along first filter 521, and in this engineering, through drying assembly 53, drying assembly 53 is further dried to the desulfurization gypsum that filters, the moisture in the evaporation gypsum material, and then realizes the recovery of wet flue gas desulfurization accessory substance gypsum. According to the intensive desulfurization device, the components are arranged on different floors, so that the occupied area is saved, and the electric energy consumed by transportation is saved; meanwhile, the device is simple and is suitable for recovering the gypsum which is a byproduct of wet desulphurization in small and medium-sized factories.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An intensive desulfurization device, characterized in that: including desulfurization subassembly (4), with gypsum recovery subassembly (5) of desulfurization subassembly (4) intercommunication and drive assembly (8) for solution transportation provides power, gypsum recovery subassembly (5) including with the rotatory separator box that desulfurization subassembly (4) are linked together, with rotatory separator box rotate filter box (52) of being connected and with gypsum collecting box (54) that filter box (52) are linked together, apopore (513) have been seted up on the rotatory separator box.

2. The intensive desulfurization device according to claim 1, wherein: the periphery of the rotary separation box is covered with a water storage tank (56) used for receiving liquid flowing out of the water outlet holes (513), and the water storage tank (56) is fixedly connected with the filter box (52).

3. An intensive desulfurization device according to claim 1, characterized in that: a first filter plate (521) is obliquely arranged in the filter box (52).

4. The intensive desulfurization device according to claim 1, wherein: and a second filter plate (514) is arranged in the rotary separation box.

5. An intensive desulfurization unit according to claim 3, characterized in that: a discharge port (522) is formed in one side of the filter box (52), and the first filter plate (521) is inclined downwards from a position far away from the discharge port (522) to a position close to the discharge port (522).

6. An intensive desulfurization unit according to claim 5, characterized in that: first filter (521) extend to gypsum collecting box (54) outside filter box (52) first filter (521) are close to the top of discharge gate (522) is provided with drying assembly (53), drying assembly (53) include mounting bracket (531) and install in drying fan (532) and the cover on mounting bracket (531) are located drying fan (532) outlying windshield (533).

7. An intensive desulfurization unit according to claim 6, characterized in that: and a vibration motor (523) is arranged at one end, close to the discharge hole (522), of the first filter plate (521) outside the filter box (52).

8. An intensive desulfurization device according to claim 1, characterized in that: the device is characterized by further comprising a limestone slurry pool (1) communicated with the desulfurization component (4), a process water pool (2) communicated with the limestone slurry pool (1), an accident slurry pool (3) communicated with the desulfurization component (4), a powder tank (6) arranged above the limestone slurry and used for storing limestone, and an operation box (7) used for controlling the work of each component.

9. An intensive desulfurization unit according to claim 8, characterized in that: the limestone slurry pool (1), the process pool (2) and the accident slurry pool (3) are all arranged on the first underground layer, the driving component (8), the desulfurization component (4) and the gypsum collecting box (54) are all arranged on the first ground layer, the operation box (7) and the gypsum recovery component (5) are arranged on the second ground layer, the powder tank (6) is arranged on the first ground layer, and an opening of the powder tank (6) is arranged on the second ground layer.

10. The intensive desulfurization device according to claim 8, wherein: the powder tank (6) is arranged above the limestone slurry pool (1), and the gypsum recovery component (5) is arranged above the gypsum collection box (54).