CN215428208U

CN215428208U - Waste liquid treatment is with burning desulphurization unit

Info

Publication number: CN215428208U
Application number: CN202121162917.3U
Authority: CN
Inventors: 孙俊彪
Original assignee: Chengong Environmental Technology Co Ltd
Current assignee: Chengong Environmental Technology Co Ltd
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2022-01-07
Anticipated expiration: 2031-05-27

Abstract

The utility model discloses an incineration desulfurization device for waste liquid treatment, and relates to the technical field of desulfurization devices. The structure of the utility model comprises an absorption tower, a first spray pipe, a second spray pipe, a demister, a rotating shaft and a scraping rod, wherein an exhaust port is fixed in a central through hole of the top wall of the absorption tower, and a central column is fixed in a through hole of the bottom wall of the absorption tower; the first spray pipe is arranged in the absorption tower; the second spray pipe is arranged on the upper side of the first spray pipe; the demister is arranged on the upper side of the second spray pipe and prevents the sprayed slurry mist from flowing into the exhaust port; the bottom of the rotating shaft is arranged in the central column, and the side wall of the top of the rotating shaft is provided with fan blades; the ejector rod of the scraping rod is fixed at the top end of the rotating shaft, and the rods at two sides of the scraping rod are attached to the inner side wall of the absorption tower. The utility model can prevent the coagulation dirt on the inner wall of the absorption tower.

Description

Waste liquid treatment is with burning desulphurization unit

Technical Field

The utility model relates to the technical field of desulfurization devices, in particular to an incineration desulfurization device for waste liquid treatment.

Background

The limestone-gypsum method desulfurization process is a most widely applied desulfurization technology in the world, and the working principle is as follows: adding water into limestone powder to prepare slurry which is used as an absorbent and pumped into an absorption tower to be fully contacted and mixed with the flue gas, carrying out oxidation reaction on sulfur dioxide in the flue gas, calcium carbonate in the slurry and air blown from the lower part of the tower to generate calcium sulfate, and crystallizing the calcium sulfate to form dihydrate gypsum after the calcium sulfate reaches a certain saturation degree. The gypsum slurry discharged from the absorption tower is concentrated and dehydrated to make the water content less than 10%, then the gypsum slurry is conveyed to a gypsum storage bin by a conveyor to be stacked, the desulfurized flue gas is treated by a demister to remove fog drops, and the flue gas is heated by a heat exchanger to be heated and then is discharged into the atmosphere through a chimney. Because the absorbent slurry in the absorption tower is repeatedly circulated by the circulating pump to be contacted with the flue gas, the utilization rate of the absorbent is high, the calcium-sulfur ratio is low, and the desulfurization efficiency can be higher than 95%. Stains in the flue gas, lime slurry agglomeration and crystals in the waste liquid are likely to be agglutinated and attached to the inner wall of the adsorption tower, and thick-layer dirt is formed on the inner wall for a long time and is difficult to clean.

Accordingly, those skilled in the art have provided an incineration desulfurization apparatus for waste liquid treatment to solve the problems set forth in the background art described above.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the inner wall of the adsorption tower in the prior art is easy to form thick-layer dirt and is difficult to clean.

In order to solve the technical problems, the utility model provides an incineration desulfurization device for waste liquid treatment, which comprises an absorption tower, a first spray pipe, a second spray pipe, a demister, a rotating shaft and a scraping rod, wherein the absorption tower is of a cylindrical shell structure, an exhaust port is fixed in a central through hole in the top wall of the absorption tower, and a central column is fixed in a through hole in the bottom wall of the absorption tower; the first spray pipe is of a grid-type pipeline structure, a plurality of spray heads are arranged in through holes in the side wall of the bottom, the first spray pipe is arranged in the absorption tower, and the first spray pipe is communicated with the slurry preparation system; the structure of the second spray pipe is the same as that of the first spray pipe, the second spray pipe is arranged on the upper side of the first spray pipe, and the second spray pipe is communicated with the slurry preparation system and used for emergent slurry spraying; the demister is arranged on the upper side of the second spray pipe and prevents the sprayed slurry mist from flowing into the exhaust port; the rotating shaft is of a cylindrical structure, the bottom of the rotating shaft is arranged in the central column, the side wall of the top of the rotating shaft is provided with fan blades, smoke in the absorption tower blows the fan blades to rotate, and the fan blades drive the rotating shaft to rotate; the scraping rod is of an inverted U-shaped rod-shaped structure, the ejector rod of the scraping rod is fixed to the top end of the rotating shaft, the rods on two sides of the scraping rod are attached to the inner side wall of the absorption tower, the rotating shaft drives the scraping rod to rotate, and the scraping rod scrapes stains attached to the inner side wall of the absorption tower.

As a further scheme of the utility model: the upside of defroster is provided with No. three shower, the structure of No. three shower is the same with the structure of a shower, No. three shower passes through water pump and water tank intercommunication, during the clear water pump was gone into No. three showers with the water tank, clear water sprayed the defroster from the shower nozzle on No. three showers on to wash the defroster.

As a further scheme of the utility model: and a liquid outlet is formed in the through hole of the right lower side wall of the absorption tower and communicated with the gypsum dehydration system, and waste liquid in the absorption tower flows into the gypsum dehydration system from the liquid outlet.

As a further scheme of the utility model: the left side of absorption tower is provided with the heat transfer case, it has the heat pipe to coil in the cavity of heat transfer case, heat pipe and heat medium intercommunication, be fixed with into smoke pipe in the left part through-hole of the top lateral wall of heat transfer case, the right part through-hole and be fixed with the discharge flue, it communicates with flue gas system to advance smoke pipe, the right-hand member of discharge flue is fixed in the through-hole of the left side wall of absorption tower, and the flue gas is from flowing into in the heat transfer case to in passing through the heat pipe with heat conduction income heat medium, the flue gas after the cooling flows into in the absorption tower.

As a further scheme of the utility model: a temperature sensor is arranged in the smoke inlet pipeline and senses the temperature of smoke.

As a further scheme of the utility model: the absorption tower downside is provided with the rotor, the left end of rotor is fixed with No. two gears of tapered, the bottom mounting of pivot has a gear of tapered, No. one gear and No. two gear engagement, the pivot drives the rotor through a gear and No. two gears and rotates, the rotor is used for hand generator mechanical power generation.

As a further scheme of the utility model: the bottom of absorption tower is provided with the base, the base is the cell body structure of cylinder, the absorption tower is propped up to the base to cover the rotor.

The utility model has the beneficial effects that:

(1) when the secondary spraying pipe is used, the flue gas system flows the flue gas into the heat exchange box from the flue gas inlet pipeline, the heat conducting pipe circularly flows the heat medium when the temperature sensor senses that the temperature of the flue gas is higher than a threshold value, the heat medium absorbs the heat in the flue gas, and the cooled flue gas flows into the absorption tower from the flue gas exhaust pipeline; the slurry preparation system pumps the lime slurry into the first spray pipe, the spray head on the first spray pipe sprays the slurry into the absorption tower, and the lime slurry absorbs sulfur dioxide in the flue gas; if the first spray pipe is suddenly damaged, the slurry preparation system pumps the lime slurry into the second spray pipe; the desulfurized flue gas floats upwards to the exhaust port to be discharged, and the demister prevents slurry spray from floating into the exhaust port. The utility model can deal with the emergency situation that the first spray pipe fails.

(2) The utility model is provided with a rotating shaft and a scraping rod, when smoke flows into the absorption tower, the smoke in the absorption tower blows the fan blades to rotate, the fan blades drive the rotating shaft to rotate, the rotating shaft drives the scraping rod to rotate, and the scraping rod scrapes off stains attached to the inner side wall of the absorption tower. The utility model can prevent the coagulation dirt on the inner wall of the absorption tower.

(3) The utility model is provided with a third spray pipe, after the desulfurization is finished, the water pump pumps clean water in the water tank into the third spray pipe, and the clean water is sprayed onto the demister from the spray head on the third spray pipe so as to clean the demister. The utility model is convenient for cleaning the demister.

Drawings

Fig. 1 is a front view of the present invention.

Wherein: the device comprises an absorption tower 10, a first spray pipe 11, a second spray pipe 12, a demister 13, a third spray pipe 14, an exhaust port 15, a central column 16, a rotating shaft 17, a fan blade 18, a scraping rod 19, a first gear 20, a second gear 21, a rotor 22, a liquid discharge port 23, a heat exchange box 24, a heat conduction pipe 25, a smoke discharge pipeline 26, a smoke inlet pipeline 27, a temperature sensor 28 and a base 29.

Detailed Description

The incineration desulfurization device for waste liquid treatment provided by the embodiment has a structure shown in fig. 1, and comprises an absorption tower 10, a first spray pipe 11, a second spray pipe 12, a demister 13, a rotating shaft 17, and a scraping rod 19, wherein the absorption tower 10 is in a cylindrical shell structure, an exhaust port 15 is fixed in a central through hole in the top wall of the absorption tower 10, and a central column 16 is fixed in a through hole in the bottom wall of the absorption tower 10; the first spray pipe 11 is of a grid-type pipeline structure, a plurality of spray heads are arranged in through holes in the side wall of the bottom, the first spray pipe 11 is arranged in the absorption tower 10, and the first spray pipe 11 is communicated with a slurry preparation system; the structure of the second spray pipe 12 is the same as that of the first spray pipe 11, the second spray pipe 12 is arranged on the upper side of the first spray pipe 11, and the second spray pipe 12 is communicated with a slurry preparation system and used for emergency slurry spraying; the demister 13 is arranged on the upper side of the second spray pipe 12, and the demister 13 prevents the sprayed slurry mist from flowing into the exhaust port 15; the rotating shaft 17 is of a cylindrical structure, the bottom of the rotating shaft 17 is arranged in the central column 16, the side wall of the top of the rotating shaft 17 is provided with a fan blade 18, the fan blade 18 is blown by smoke in the absorption tower 10 to rotate, and the fan blade 18 drives the rotating shaft 17 to rotate; the scraping rod 19 is of an inverted U-shaped rod-shaped structure, an ejector rod of the scraping rod 19 is fixed at the top end of the rotating shaft 17, two side rods of the scraping rod 19 are attached to the inner side wall of the absorption tower 10, the rotating shaft 17 drives the scraping rod 19 to rotate, and the scraping rod 19 scrapes off stains attached to the inner side wall of the absorption tower 10.

The upper side of defroster 13 is provided with spray pipe 14 No. three, spray pipe 14 No. three's structure is the same with spray pipe 11 structure No. one, spray pipe 14 No. three passes through water pump and water tank intercommunication, during clean water pump was gone into spray pipe 14 No. three with the water tank in, the clear water sprayed defroster 13 from the shower nozzle on spray pipe 14 No. three on to wash defroster 13.

A liquid outlet 23 is arranged in a through hole of the lower right side wall of the absorption tower 10, the liquid outlet 23 is communicated with a gypsum dehydration system, and waste liquid in the absorption tower 10 flows into the gypsum dehydration system from the liquid outlet 23.

The left side of absorption tower 10 is provided with heat transfer case 24, heat pipe 25 has been coiled in heat transfer case 24's the cavity, heat pipe 25 and heat medium intercommunication, be fixed with in advancing tobacco pipe 27, the right part through-hole of the top lateral wall of heat transfer case 24 and be fixed with exhaust pipe 26, advance tobacco pipe 27 and flue gas system intercommunication, the right-hand member of exhaust pipe 26 is fixed in the through-hole of the left side wall of absorption tower 10, and the flue gas is from flowing into heat transfer case 24 to in going into heat medium with heat conduction through heat pipe 25, during the flue gas after the cooling flows into absorption tower 10.

The smoke inlet pipeline 27 is provided with a temperature sensor 28, and the temperature sensor 28 senses the temperature of smoke.

Absorption tower 10 downside is provided with rotor 22, rotor 22's left end is fixed with No. two gears 21 of tapered, the bottom mounting of pivot 17 has a gear 20 of tapered, a gear 20 and No. two gear 21 meshing, pivot 17 drives rotor 22 through a gear 20 and No. two gears 21 and rotates, rotor 22 is used for hand generator mechanical power generation.

The bottom end of the absorption tower 10 is provided with a base 29, the base 29 is of a cylindrical groove structure, and the base 29 supports the absorption tower 10 and covers the rotor 22.

The working principle of the utility model is as follows: when the flue gas cooling device is used, the flue gas system flows flue gas into the heat exchange box 24 from the flue gas inlet pipeline 27, when the temperature sensor 28 senses that the temperature of the flue gas is higher than a threshold value, the heat conducting pipe 25 circularly flows heat medium, the heat medium absorbs heat in the flue gas, and the cooled flue gas flows into the absorption tower 10 from the flue gas exhaust pipeline 26; the slurry preparation system pumps lime slurry into the first spray pipe 11, the spray head on the first spray pipe 11 sprays the slurry into the absorption tower 10, and the lime slurry absorbs sulfur dioxide in the flue gas; if the first spray pipe 11 is damaged suddenly, the slurry preparation system pumps lime slurry into the second spray pipe 12; the desulfurized flue gas floats upwards to the exhaust port 15 to be discharged, and the slurry is prevented from spraying and floating into the exhaust port 15 by the demister 13; when the flue gas flows into the absorption tower 10, the flue gas in the absorption tower 10 blows the fan blades 18 to rotate, the fan blades 18 drive the rotating shaft 17 to rotate, the rotating shaft 17 drives the scraping rod 19 to rotate, and the scraping rod 19 scrapes off stains attached to the inner side wall of the absorption tower 10; after the desulfurization is finished, the water pump pumps the clean water in the water tank into the third spray pipe 14, and the clean water is sprayed onto the demister 13 from the spray head on the third spray pipe 14 so as to clean the demister 13. The utility model can prevent the coagulation dirt on the inner wall of the absorption tower.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An incineration desulfurization device for waste liquid treatment is characterized by comprising an absorption tower (10), a first spray pipe (11), a second spray pipe (12), a demister (13), a rotating shaft (17) and a scraping rod (19), wherein the absorption tower (10) is of a cylindrical shell structure, an exhaust port (15) is fixed in a central through hole in the top wall of the absorption tower (10), and a central column (16) is fixed in a through hole in the bottom wall of the absorption tower (10); the first spray pipe (11) is of a grid-type pipeline structure, a plurality of spray heads are arranged in through holes in the side wall of the bottom, the first spray pipe (11) is arranged in the absorption tower (10), and the first spray pipe (11) is communicated with a slurry preparation system; the structure of the second spray pipe (12) is the same as that of the first spray pipe (11), the second spray pipe (12) is arranged on the upper side of the first spray pipe (11), and the second spray pipe (12) is communicated with a slurry preparation system; the demister (13) is arranged on the upper side of the second spray pipe (12), and the demister (13) prevents the sprayed slurry mist from flowing into the exhaust port (15); the rotating shaft (17) is of a cylindrical structure, the bottom of the rotating shaft (17) is arranged in the central column (16), and fan blades (18) are arranged on the side wall of the top of the rotating shaft (17); the scraping rod (19) is of an inverted U-shaped rod-shaped structure, an ejector rod of the scraping rod (19) is fixed to the top end of the rotating shaft (17), and rods on two sides of the scraping rod (19) are attached to the inner side wall of the absorption tower (10).

2. The incineration desulfurization device for waste liquid treatment according to claim 1, characterized in that: the upside of defroster (13) is provided with spray pipe (14) No. three, the structure of spray pipe (14) No. three is the same with the structure of spray pipe (11) No. three, spray pipe (14) pass through water pump and water tank intercommunication No. three, during clear water pump in with the water tank was gone into spray pipe (14) No. three, clear water sprayed defroster (13) from the shower nozzle on spray pipe (14) No. three on to wash defroster (13).

3. The incineration desulfurization device for waste liquid treatment according to claim 1, characterized in that: a liquid outlet (23) is arranged in a through hole in the right lower side wall of the absorption tower (10), the liquid outlet (23) is communicated with the gypsum dehydration system, and waste liquid in the absorption tower (10) flows into the gypsum dehydration system from the liquid outlet (23).

4. The incineration desulfurization device for waste liquid treatment according to claim 1, characterized in that: the left side of absorption tower (10) is provided with heat transfer case (24), heat pipe (25) have been coiled in the cavity of heat transfer case (24), heat pipe (25) and heat medium intercommunication, be fixed with in the left part through-hole of the top lateral wall of heat transfer case (24) and advance smoke pipe (27), right part through-hole and be fixed with smoke exhaust pipe (26), advance smoke pipe (27) and flue gas system intercommunication, the right-hand member of smoke exhaust pipe (26) is fixed in the through-hole of the left side wall of absorption tower (10), and the flue gas is from flowing into in heat transfer case (24) to pass the leading-in heat medium of heat through heat pipe (25), during the flue gas after the cooling flows into absorption tower (10).

5. The incineration desulfurization device for waste liquid treatment according to claim 4, characterized in that: a temperature sensor (28) is arranged in the smoke inlet pipeline (27), and the temperature sensor (28) senses the temperature of smoke.