阅读说明：本技术 一种垃圾焚烧烟气回流脱碳装置 (Waste incineration flue gas backward flow decarbonization device ) 是由 王春保 金芝 于 2019-12-06 设计创作，主要内容包括：本发明公开了一种垃圾焚烧烟气回流脱碳装置,属于环境保护技术领域,包括包括压缩机、脱碳机罐体、存碱箱以及存水箱,压缩机进口和出口上连接一端与垃圾焚烧炉相接的进烟管,另一端连接与脱碳机罐体底部相通的出烟管,第一水泵工作时,抽取存碱箱内的碱性溶液顺着下杆从雾化喷口经过雾化喷出碱性溶液雾,增大与烟气之间的接触面积,反应结束后,气缸驱动圆盘在脱碳机罐体内下移,圆盘的密封圈会与脱碳机罐体的内壁接触,吸附于脱碳机罐体内壁上的液体水滴慢慢向下推动,圆盘下降减少脱碳机罐体内腔体积,配合第二水泵抽取反应后的气体和液体进入存水箱,采用物理吸收的方法,二氧化碳被气罐吸收,将内部的残留的气体和液体进行吸收。(The invention discloses a waste incineration flue gas backflow decarbonization device, which belongs to the technical field of environmental protection and comprises a compressor, a decarbonization machine tank body, an alkali storage tank and a water storage tank, wherein an inlet and an outlet of the compressor are connected with a smoke inlet pipe with one end connected with the waste incinerator, and the other end is connected with a smoke outlet pipe communicated with the bottom of the decarbonization machine tank body, when a first water pump works, alkaline solution in the alkali storage tank is extracted and sprayed out from an atomizing nozzle along a lower rod through atomization, so that the contact area between the alkaline solution and the flue gas is increased, after the reaction is finished, a disc is driven by a cylinder to move downwards in the decarbonization machine tank body, a sealing ring of the disc can be contacted with the inner wall of the decarbonization machine tank body, liquid water drops adsorbed on the inner wall of the decarbonization machine tank body are slowly pushed downwards, the disc descends to reduce the volume in the decarbonization machine, by the physical absorption method, carbon dioxide is absorbed by the gas tank, and residual gas and liquid inside the gas tank are absorbed.)

1. A waste incineration flue gas backflow decarbonization device is characterized by comprising a compressor (1), a decarbonization machine tank body (2), an alkali storage tank (8) and a water storage tank (9), wherein an inlet and an outlet of the compressor (1) are connected with a flue gas inlet pipe (11) with one end connected with a waste incinerator, and the other end is connected with a flue gas outlet pipe (12) communicated with the bottom of the decarbonization machine tank body (2);

the top of the decarbonizing machine tank body (2) is provided with a lifting mechanism (3) and a first water pump (4) side by side, the lifting mechanism (3) comprises a cylinder (31), a support plate (32), a sleeve (33), an upper rod (34) and a lower rod (35), the bottom of the cylinder (31) is fixed on the decarbonizing machine tank body (2), two ends of the support plate (32) are connected with telescopic rod ports of the two cylinders (31), the bottom surface of the support plate (32) is fixed with one end of the upper rod (34), the upper rod (34) is meshed with the upper end of the sleeve (33) through threads, and the lower end of the sleeve (33) is meshed with the lower rod (35);

the bottom of the lower rod (35) extends into the decarbonizing machine tank body (2), a disc (5) is fixed at the port of the lower rod, a ring groove processed on the peripheral surface of the disc (5) is sleeved with a sealing ring (51), the disc (5) is in sealing connection with the inner wall of the decarbonizing machine tank body (2) through the sealing ring (51), and the disc (5) slides in the decarbonizing machine tank body (2) in a sealing manner in the process that the cylinder (31) lifts and drives the upper rod (34) and the lower rod (35) to move up and down integrally;

a plurality of atomizing nozzles (52) are uniformly distributed on the lower circumferential surface of the disc (5), the lower rod (35) is of a hollow structure, one end of the lower rod is communicated with the atomizing nozzles (52), and the other end of the lower rod is communicated with the inner cavity of the sleeve (33);

the side wall of the sleeve (33) is connected with a flexible pipe (41) connected with an inlet of a first water pump (4), an outlet of the first water pump (4) extends to the alkali storage box (8), and an alkaline solution pumped by the first water pump (4) is sent into the sleeve (33) and atomized from an atomization nozzle (52) into the decarbonizer tank body (2) through a lower rod (35);

a second water pump (6) and a water storage tank (9) are respectively installed on the top surface of the alkali storage tank (8), an inlet of the second water pump (6) is connected with a water inlet pipe (61), an outlet of the second water pump (6) is connected with a water outlet pipe (62), the second water pump (6) is communicated with the bottom of the decarbonizing machine tank body (2) through the water inlet pipe (61), and the second water pump (6) is connected with the water storage tank (9) through the water outlet pipe (62);

the air storage tank (9) is internally penetrated by an air suction pipe (7), a bell mouth (71) is sleeved on the port of the air suction pipe (7) positioned inside the air storage tank (9), the other end of the air suction pipe (7) is connected with an air suction pump (72), and the other end of the air suction pump (72) is connected with an air tank (10).

2. The waste incineration flue gas reflux decarburization device as claimed in claim 1, characterized in that the flue gas outlet pipe (12) and the water outlet pipe (62) are both symmetrically arranged at the bottom of the decarbonizer vessel (2).

3. A refuse incineration flue gas reflux decarburization device as claimed in claim 1, characterized in that the thickness of the disc (5) is greater than the diameter of the flue pipe (12) and the outlet pipe (62).

4. A refuse incineration flue gas reflux decarburization device as claimed in claim 1, characterized in that the cylinder (31) is arranged with a stroke for the disc (5) to slide down to a position where it contacts the bottom wall of the decarboniser pot (2), and during the sliding down of the disc (5) the second pump (6) is operated to pump liquid from the decarboniser pot (2) into the storage tank (9).

5. A refuse incineration flue gas reflux decarburization device as claimed in claim 1, characterized in that the storage tank (9) stores liquid water and the pipe of the outlet pipe (62) is immersed below the level of the storage tank (9).

Technical Field

The invention relates to the technical field of environmental protection, in particular to a waste incineration flue gas reflux decarbonization device.

Background

The waste incineration flue gas has high heat value and can be used as renewable clean energy, so that people have great attention, the resource reserves of the waste incineration flue gas in China are very rich, and the market demand is huge. At present, domestic waste incineration flue gas is mainly used as fuel of rural kitchen ranges and has low use value. The development of waste incineration flue gas at home and abroad shows that the power generation by the waste incineration flue gas is an important means for efficiently utilizing the waste incineration flue gas. The decarbonization method in the waste incineration flue gas is mainly a liquid absorption method, and the liquid absorption method is divided into a physical absorption method and a chemical absorption method. Most of the existing decarbonization devices do not adopt a physical absorption method and a chemical absorption method simultaneously, so that the decarbonization effect of waste incineration smoke is poor, and a large amount of impurities exist after the decarbonization.

Disclosure of Invention

The invention aims to provide a waste incineration flue gas reflux decarbonization device, which adopts a physical absorption method, carbon dioxide is absorbed by a gas tank, and residual gas and liquid in the gas tank are absorbed, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a waste incineration flue gas backflow decarbonization device comprises a compressor, a decarbonization machine tank body, an alkali storage tank and a water storage tank, wherein an inlet and an outlet of the compressor are connected with a smoke inlet pipe with one end connected with a waste incinerator, and the other end is connected with a smoke outlet pipe communicated with the bottom of the decarbonization machine tank body;

the top of the decarbonizing machine tank body is provided with a lifting mechanism and a first water pump side by side, the lifting mechanism comprises an air cylinder, a supporting plate, a sleeve, an upper rod and a lower rod, the bottom of the air cylinder is fixed on the decarbonizing machine tank body, two ends of the supporting plate are connected with ports of telescopic rods of the two air cylinders, the bottom surface of the supporting plate is fixed with one end of the upper rod, the upper rod is meshed with the upper end of the sleeve through threads, and the lower end of the sleeve is meshed with the lower rod;

the bottom of the lower rod extends into the decarbonizing machine tank body, a disc is fixed at the port of the lower rod, a sealing ring is sleeved on a circle of annular groove processed on the peripheral surface of the disc, the disc is connected with the inner wall of the decarbonizing machine tank body in a sealing manner through the sealing ring, and the disc slides in the decarbonizing machine tank body in a sealing manner in the process that the upper rod and the lower rod are driven by the air cylinder to integrally move up and down;

a plurality of atomizing nozzles are uniformly distributed on the lower circumferential surface of the disc, the lower rod is of a hollow structure, one end of the lower rod is communicated with the atomizing nozzles, and the other end of the lower rod is communicated with the inner cavity of the sleeve;

the side wall of the sleeve is connected with a flexible pipe connected with an inlet of a first water pump, an outlet of the first water pump extends to an alkali storage box, and alkaline solution pumped by the first water pump is sent into the sleeve and atomized from an atomizing nozzle into a tank body of the decarburization machine through a lower rod;

the top surface of the alkali storage tank is respectively provided with a second water pump and a water storage tank, the inlet of the second water pump is connected with a water inlet pipe, the outlet of the second water pump is connected with a water outlet pipe, the second water pump is communicated with the bottom of the tank body of the decarburization machine through the water inlet pipe, and the second water pump is connected with the water storage tank through the water outlet pipe;

the air storage tank is internally penetrated by an exhaust pipe, a horn mouth is sleeved on the port of the exhaust pipe positioned in the air storage tank, the other end of the exhaust pipe is connected with an exhaust pump, and the other end of the exhaust pump is connected with an air tank.

Furthermore, the smoke outlet pipe and the water outlet pipe are symmetrically distributed at the bottom of the tank body of the decarburization machine.

Further, the thickness of the disc is larger than the diameters of the smoke outlet pipe and the water outlet pipe.

Furthermore, the stroke that the cylinder set up supplies the disc gliding to the position of contacting with the bottom wall of the decarbonization machine jar body, and the disc is at the in-process that glides, and the work of second water pump draws the liquid in the decarbonization machine jar body and flows into the water holding tank.

Compared with the prior art, the invention has the beneficial effects that: the invention provides a waste incineration flue gas reflux decarbonization device, wherein a disc is driven to ascend by a cylinder between the entering of flue gas, an inner cavity of a decarbonization machine tank body is enlarged, the flue gas is discharged into the decarbonization machine tank body, when a first water pump works, alkaline solution in an alkali storage tank is extracted, and alkaline solution mist is sprayed out from an atomizing nozzle along a lower rod through atomization, so that the contact area between the alkaline solution mist and the flue gas is enlarged, the reaction speed is improved, after the reaction is finished, the disc is driven to move downwards in the decarbonization machine tank body by the cylinder, a sealing ring of the disc is contacted with the inner wall of the decarbonization machine tank body in the integral up-and-down moving process, liquid water drops adsorbed on the inner wall of the decarbonization machine tank body are slowly pushed downwards, the disc descends to reduce the volume of the inner cavity of the decarbonization machine tank body, the reacted gas and liquid are extracted by matching with, so that the carbon dioxide can be desorbed in the water storage tank, and the carbon dioxide is absorbed by the gas tank by adopting a physical absorption method to absorb residual gas and liquid in the gas tank.

Drawings

FIG. 1 is an overall block diagram of the present invention;

FIG. 2 is a view of the construction of the disc of the present invention;

FIG. 3 is a view showing the inner structure of the disk of the present invention;

FIG. 4 is a view of the sleeve of the present invention;

fig. 5 is a view showing a descending state of the disk of the present invention.

In the figure: 1. a compressor; 11. a smoke inlet pipe; 12. discharging the smoke tube; 2. a decarbonizing machine tank body; 3. a lifting mechanism; 31. a cylinder; 32. a support plate; 33. a sleeve; 34. a rod is arranged; 35. a lower rod; 4. a first water pump; 41. a flexible tube; 5. a disc; 51. a seal ring; 52. an atomizing nozzle; 6. a second water pump; 61. a water inlet pipe; 62. a water outlet pipe; 7. an air exhaust pipe; 71. a bell mouth; 72. an air pump; 8. an alkali storage box; 9. a water storage tank; 10. a gas tank.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

Referring to fig. 1, a waste incineration flue gas backflow decarbonization device comprises a compressor 1, a decarbonization machine tank 2, an alkali storage tank 8 and a water storage tank 9, wherein an inlet and an outlet of the compressor 1 are connected with a flue gas inlet pipe 11 with one end connected with a waste incinerator, the other end of the compressor 1 is connected with a flue gas outlet pipe 12 communicated with the bottom of the decarbonization machine tank 2, after the waste incinerator incinerates waste, generated flue gas enters the compressor 1 along the flue gas outlet pipe 12, the compressor 1 performs pressurization treatment on the flue gas, and then the flue gas is introduced into the decarbonization machine tank 2.

The top of the decarbonizing machine tank 2 is provided with a lifting mechanism 3 and a first water pump 4 side by side, the lifting mechanism 3 comprises a cylinder 31, a support plate 32, a sleeve 33, an upper rod 34 and a lower rod 35, the bottom of the cylinder 31 is fixed on the decarbonizing machine tank 2, the two cylinders 31 are symmetrically distributed on the decarbonizing machine tank 2, two ends of the support plate 32 are connected with telescopic rod ports of the two cylinders 31, the telescopic rods can be controlled by the cylinders 31 to move up and down, the bottom surface of the support plate 32 is fixed with one end of the upper rod 34, the support plate 32 is spanned and lapped on the telescopic rods of the cylinder 31, the upper rod 34 is meshed with the upper end of the sleeve 33 through threads, the lower end of the sleeve 33 is meshed with the lower rod 35, and the upper rod 34 and the lower rod 35 are combined and fixed together through.

The bottom of the lower rod 35 extends into the decarbonizing machine tank 2, a disc 5 is fixed on the port of the lower rod, a sealing ring 51 is sleeved on a circle of annular groove processed on the outer peripheral surface of the disc 5, a part of the sealing ring 51 protrudes out of the fixed disc 5, the disc 5 is connected with the inner wall of the decarbonizing machine tank 2 in a sealing way through the sealing ring 51, the disc 5 moves up and down integrally under the driving of the lower rod 35, the disc 5 slides in the decarbonizing machine tank 2 in a sealing way in the process that the cylinder 31 drives the upper rod 34 and the lower rod 35 to move up and down integrally, the thickness of the disc 5 is larger than the diameters of the smoke outlet pipe 12 and the water outlet pipe 62, the sealing ring 51 of the disc 5 is contacted with the inner wall of the decarbonizing machine tank 2 in the process that the disc 5 moves up and down integrally, liquid water drops adsorbed on the inner wall of the decarbonizing machine tank 2 are, the top surface of the alkali storage tank 8 is respectively provided with a second water pump 6 and a water storage tank 9, the inlet of the second water pump 6 is connected with a water inlet pipe 61, the outlet of the second water pump 6 is connected with a water outlet pipe 62, the second water pump 6 is communicated with the bottom of the decarbonizing machine tank body 2 through the water inlet pipe 61, the smoke outlet pipe 12 and the water outlet pipe 62 are symmetrically distributed at the bottom of the decarbonizing machine tank body 2, the second water pump 6 works, gas near the water inlet pipe 61 is extracted, meanwhile, liquid in the decarbonizing machine tank body 2 is driven to flow into the water storage tank 9, the second water pump 6 is connected with the water storage tank 9 through the water outlet pipe 62, and carbon dioxide can be desorbed in the water storage tank 9 by utilizing the solubility difference of methane and carbon dioxide in water; the air suction pipe 7 penetrates through the water storage tank 9, the port of the air suction pipe 7, which is positioned inside the water storage tank 9, is sleeved with the bell mouth 71, the other end of the air suction pipe 7 is connected with the air suction pump 72, the other end of the air suction pump 72 is connected with the air tank 10, the air in the water storage tank 9 is sucked by the air suction pump 72, and carbon dioxide in the water storage tank 9 is sucked and discharged into the air tank 10 for storage treatment.

Referring to fig. 2-3, a plurality of atomizing nozzles 52 are uniformly distributed on the lower circumferential surface of the disc 5, the lower rod 35 is of a hollow structure, one end of the lower rod is communicated with the atomizing nozzles 52, the other end of the lower rod is communicated with the inner cavity of the sleeve 33, and an atomizing sheet is arranged in the atomizing nozzles 52, so that the alkaline solution sprayed out through the atomizing nozzles 52 can be atomized, the contact area between the alkaline solution and the flue gas is increased, and the reaction rate is improved.

Referring to fig. 4, the side wall of the sleeve 33 is connected to a flexible pipe 41 connected to an inlet of the first water pump 4, the flexible pipe 41 has a strong deformation capability, when the cylinder 31 ascends or descends, the flexible pipe 41 deforms along with the first water pump 4, an outlet of the first water pump 4 extends to the alkali storage tank 8, the alkaline solution pumped by the first water pump 4 is fed into the sleeve 33 and atomized and sprayed into the decarbonizer tank 2 from the atomization nozzle 52 through the lower rod 35, when the first water pump 4 works, the alkaline solution pumped into the alkali storage tank 8 flows into the sleeve 33 through the flexible pipe 41, and since the lower rod 35 is hollow, the liquid in the sleeve 33 is atomized and sprayed out from the atomization nozzle 52 along the lower rod 35.

Referring to fig. 5, the stroke that the cylinder 31 set up supplies disc 5 to slide down to the position that contacts with the 2 diapire of decarbonization machine jar, disc 5 is at the in-process that slides down, the work of second water pump 6 draws the interior liquid flow of decarbonization machine jar 2 and holds water tank 9, disc 5 is between the flue gas entering, drive disc 5 at cylinder 31 and rise, increase the inner chamber of decarbonization machine jar 2, the flue gas is discharged into decarbonization machine jar 2, the alkaline solution through atomizing spout 52 spun carries out the atomizing process, after the chemical reaction, disc 5 descends and reduces the interior chamber volume of decarbonization machine jar 2, cooperate gas and liquid after second water pump 6 extraction reaction to get into holding water tank 9, carbon dioxide is absorbed by gas pitcher 10.

The working principle is as follows: the disc 5 drives the disc 5 to ascend through the cylinder 31 when the flue gas enters, the inner cavity of the decarbonizing machine tank 2 is enlarged, the flue gas is discharged into the decarbonizing machine tank 2, the first water pump 4 works to extract the alkaline solution in the alkali storage tank 8 to flow into the sleeve 33 through the flexible pipe 41, because the lower rod 35 is hollow, the liquid in the sleeve 33 can be atomized and sprayed out from the atomizing nozzle 52 along the lower rod 35, the alkaline solution sprayed out from the atomizing nozzle 52 is atomized, the contact area between the alkaline solution and the flue gas is enlarged, the reaction rate is improved, after the reaction is finished, the cylinder 31 drives the upper rod 34 and the lower rod 35 to integrally move downwards, the disc 5 slides in the decarbonizing machine tank 2 in a sealing manner, in the process that the disc 5 integrally moves downwards, the sealing ring 51 of the disc 5 can be in contact with the inner wall of the decarbonizing machine tank 2, and liquid water drops adsorbed on the inner wall of the decarbonizing machine tank 2, the disc 5 descends to reduce the volume of the inner cavity of the tank body 2 of the decarbonizing machine, the gas and the liquid after the reaction are pumped by matching with the second water pump 6 to enter the water storage tank 9, the carbon dioxide can be desorbed in the water storage tank 9 by utilizing the solubility difference of methane and carbon dioxide in water, and the carbon dioxide is absorbed by the gas tank 10 by adopting a physical absorption method.

In summary, the following steps: the waste incineration flue gas backflow decarbonization device comprises a disc 5, wherein the disc 5 is arranged between the inlet of flue gas, the cylinder 31 drives the disc 5 to ascend, an inner cavity of a decarbonization machine tank body 2 is enlarged, the flue gas is discharged into the decarbonization machine tank body 2, when a first water pump 4 works, alkaline solution in an extraction alkali storage tank 8 is atomized and sprayed from an atomizing nozzle 52 along a lower rod 35 to form alkaline solution mist, the contact area between the alkaline solution and the flue gas is enlarged, the reaction speed is improved, after the reaction is finished, the disc 5 is driven by the cylinder 31 to move downwards in the decarbonization machine tank body 2, in the process that the disc 5 moves upwards and downwards integrally, a sealing ring 51 of the disc 5 is contacted with the inner wall of the decarbonization machine tank body 2, liquid water drops adsorbed on the inner wall of the decarbonization machine tank body 2 are slowly pushed downwards, the disc 5 descends to reduce the volume of the inner cavity of the decarbonization machine tank body 2, the reacted gas and, so that carbon dioxide can be desorbed in the water storage tank 9, and carbon dioxide is absorbed by the gas tank 10 by physical absorption, thereby absorbing residual gas and liquid inside.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.