CN217763473U

CN217763473U - Waste gas treatment device for heat accumulating type thermal oxidation furnace

Info

Publication number: CN217763473U
Application number: CN202221868688.1U
Authority: CN
Inventors: 梅明星; 林结
Original assignee: Kunshan Qianyou Industrial Environmental Protection Equipment Co ltd
Current assignee: Kunshan Qianyou Industrial Environmental Protection Equipment Co ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2022-11-08
Anticipated expiration: 2032-07-19

Abstract

The utility model discloses a waste gas treatment device for a regenerative thermal oxidation furnace, including the regenerative oxidation furnace, first regenerator and second regenerator have been seted up in the regenerative oxidation furnace, be provided with first pottery regenerator in the first regenerator, be provided with second pottery regenerator in the second regenerator, be provided with intake pipe and outlet duct between first regenerator and the second regenerator, the one end of intake pipe is provided with centrifugal fan, the one end of outlet duct is provided with carbon dioxide treatment box, be provided with the chimney on the carbon dioxide treatment box, the top of first regenerator and second regenerator is provided with same combustion chamber, be provided with the combustion valve on the combustion chamber; the filter screen is movably installed in the carbon dioxide treatment box, sodium hydroxide crystals are placed on the filter screen, and through the arrangement of the first regenerative chamber and the second regenerative chamber, waste gas is subjected to heat cycle transmission in the oxidation treatment process, so that resources consumed in combustion of the combustion chamber are reduced, and the purposes of high efficiency and resource saving are achieved.

Description

Waste gas treatment device for heat accumulation type thermal oxidation furnace

Technical Field

The utility model relates to a waste gas treatment technical field especially relates to a waste gas treatment device for heat accumulation formula thermal oxidation furnace.

Background

The regenerative catalytic oxidation furnace is an incinerator with a heat storage function, and mainly utilizes the incinerator to burn or oxidize organic waste gas into water and carbon dioxide under the action of a catalyst, so that the effect of waste gas treatment is achieved.

Utility model CN206890532U discloses an industry VOCS exhaust treatment device, this patent is in letting in VOCS waste gas in the regenerative thermal oxidation stove, after a period of reaction, through using cycle control system with the gas outlet and the air inlet intercommunication of regenerative thermal oxidation stove, make the VOCS waste gas that remains in the regenerative thermal oxidation stove circulate and continue to take place the oxidative decomposition reaction in the regenerative thermal oxidation stove under cycle control system's effect, thereby realized making VOCS waste gas fully decompose in the regenerative thermal oxidation stove, reached the effect that does not contain any VOCS waste gas from regenerative thermal oxidation stove combustion gas, the method of circulation decomposition has been utilized, when the residual VOCS waste gas that remains in the regenerative thermal oxidation stove of regenerative thermal oxidation stove, can make the residual VOCS waste gas that is not decomposed continue to decompose completely in the regenerative thermal oxidation stove through the mode of circulation, thereby the problem of the residual VOCS waste gas in the regenerative thermal oxidation stove is discharged atmosphere polluted environment has been solved ingeniously.

However, carbon dioxide and incineration ash are generated in the regenerative thermal oxidizer during incineration, and the carbon dioxide and the incineration ash are not treated in the patent, so that the content of carbon dioxide in the air is increased, the greenhouse effect and the environmental pollution are caused, and therefore, an exhaust gas treatment device for the regenerative thermal oxidizer is required to meet the requirements of people.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heat accumulation formula is exhaust treatment device for thermal oxidation furnace to the problem that the production obtained carbon dioxide and ashes and carried out the processing after burning is not proposed to solving among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a waste gas treatment device for a regenerative thermal oxidation furnace comprises a regenerative oxidation furnace, wherein a first regenerative chamber and a second regenerative chamber are arranged in the regenerative oxidation furnace, a first ceramic regenerative body is arranged in the first regenerative chamber, a second ceramic regenerative body is arranged in the second regenerative chamber, an air inlet pipe and an air outlet pipe are arranged between the first regenerative chamber and the second regenerative chamber, one end of the air inlet pipe is provided with a centrifugal fan, one end of the air outlet pipe is provided with a carbon dioxide treatment box, a chimney is arranged on the carbon dioxide treatment box, the same combustion chamber is arranged above the first regenerative chamber and the second regenerative chamber, and a combustion valve is arranged on the combustion chamber; the carbon dioxide treatment box is internally and movably provided with a filter screen, sodium hydroxide crystals are placed on the filter screen, one side of the carbon dioxide treatment box is rotatably provided with a sealing door, and one side of the sealing door is in contact with the filter screen.

Preferably, the first heat storage chamber and the second heat storage chamber are both internally provided with a gas permeable plate, and the first ceramic heat accumulator and the second ceramic heat accumulator are respectively arranged on the gas permeable plates at corresponding positions.

Preferably, a first electric valve is arranged at the joint of the air inlet pipe and the first heat storage chamber, a second electric valve is arranged at the joint of the air inlet pipe and the second heat storage chamber, a third electric valve is arranged at the joint of the air outlet pipe and the first heat storage chamber, and a fourth electric valve is arranged at the joint of the air outlet pipe and the second heat storage chamber.

Preferably, the carbon dioxide treatment box is internally provided with a mounting groove, and the filter screen is adapted in the mounting groove.

Preferably, a plurality of reset springs which are uniformly distributed are arranged on the inner wall of one side of the mounting groove, the same base plate is mounted on the reset springs, and the base plate is in contact with the filter screen.

Preferably, one side of sealing door is provided with first latch segment, and carbon dioxide handles the case and is provided with the second latch segment with one side, and same screw rod is installed to first latch segment and second latch segment internal rotation.

Preferably, a through hole is formed in the first locking block, the screw rod is slidably mounted in the through hole, a threaded hole is formed in the second locking block, and the screw rod is matched in the threaded hole.

The utility model has the advantages that:

the utility model discloses in through the setting of first regenerator and second regenerator for waste gas carries out the heat cycle transmission at oxidation treatment's in-process, thereby has reduced the resource that the combustion chamber consumed when burning, and then has realized high efficiency and resources are saved's purpose.

The utility model discloses in through the setting of carbon dioxide processing case, the separation is sheltered from to the impurity ashes after burning in the waste gas effectively with the built-in filter screen, handles the case via carbon dioxide and concentrates the collection, avoids discharging to the air in, has the purpose of environmental protection to the sodium hydroxide crystal can absorb the carbon dioxide of the product that waste gas burned effectively, thereby has reduced the content of carbon dioxide in the waste gas, and then has avoided the emergence of greenhouse effect effectively.

Drawings

Fig. 1 is a schematic structural view of an exhaust gas treatment apparatus for a regenerative thermal oxidation furnace according to the present invention;

fig. 2 is a schematic view of a sectional structure of an air inlet pipe of the waste gas treatment device for the regenerative thermal oxidation furnace according to the present invention;

fig. 3 is a schematic view of a front sectional structure of an outlet pipe of the waste gas treatment device for the regenerative thermal oxidation furnace according to the present invention;

fig. 4 is a schematic front sectional view of a carbon dioxide treatment tank of the exhaust gas treatment device for the regenerative thermal oxidation furnace according to the present invention;

fig. 5 is a schematic view of a cross-sectional structure of a bottom plate of the waste gas treatment device for a regenerative thermal oxidizer according to the present invention;

fig. 6 is a schematic view of a cross-sectional structure of a heat accumulating type thermal oxidation furnace used for the exhaust gas treatment device of the present invention.

In the figure: 1. a regenerative oxidation furnace; 2. an air inlet pipe; 3. a centrifugal fan; 4. an air outlet pipe; 5. a carbon dioxide treatment tank; 6. a chimney; 7. a combustion valve; 8. a sealing door; 9. a screw; 10. a first regenerator; 11. a second regenerator; 12. a first ceramic thermal storage body; 13. a second ceramic heat accumulator; 14. a combustion chamber; 15. a gas permeable plate; 16. a first electrically operated valve; 17. a second electrically operated valve; 18. a third electrically operated valve; 19. a fourth electrically operated valve; 20. a filter screen; 21. sodium hydroxide crystals; 22. mounting grooves; 23. a return spring; 24. a base plate; 25. a first locking block; 26. a second locking block; 27. a through hole; 28. a threaded bore.

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.

Referring to fig. 1-6, a waste gas treatment device for a regenerative thermal oxidation furnace comprises a regenerative oxidation furnace 1, wherein a first regenerative chamber 10 and a second regenerative chamber 11 are arranged in the regenerative oxidation furnace 1, a first ceramic regenerative body 12 is arranged in the first regenerative chamber 10, a second ceramic regenerative body 13 is arranged in the second regenerative chamber 11, an air inlet pipe 2 and an air outlet pipe 4 are arranged between the first regenerative chamber 10 and the second regenerative chamber 11, one end of the air inlet pipe 2 is provided with a centrifugal fan 3, one end of the air outlet pipe 4 is provided with a carbon dioxide treatment box 5, a chimney 6 is arranged on the carbon dioxide treatment box 5, a same combustion chamber 14 is arranged above the first regenerative chamber 10 and the second regenerative chamber 11, and a combustion valve 7 is arranged on the combustion chamber 14; a filter screen 20 is movably arranged in the carbon dioxide treatment box 5, sodium hydroxide crystals 21 are placed on the filter screen 20, a sealing door 8 is rotatably arranged on one side of the carbon dioxide treatment box 5, one side of the sealing door 8 is in contact with the filter screen 20, waste gas is extracted by a centrifugal fan 3 and is conveyed to a first heat storage chamber 10 through an air inlet pipe 2, the waste gas is burnt by a combustion valve 7 at an upper combustion chamber 14, the heated waste gas passes through a second heat storage chamber 11, a second ceramic heat storage body 13 is transferred to the waste gas, the waste gas after heat dissipation is discharged into the carbon dioxide treatment box 5 through an air outlet pipe 4 connected with the second heat storage chamber 11, when the waste gas is absorbed by the centrifugal fan 3 and is conveyed to the second heat storage chamber 11 through the air inlet pipe 2, the heat collected in the second ceramic heat storage body 13 is transferred to the waste gas, after the combustion chamber 14 burns and heats, the heated gas transfers heat to the combustion chamber 14 through the first ceramic heat accumulator 12, the waste gas with heat loss is discharged into the carbon dioxide treatment box 5 through the gas outlet pipe 4 connected with the first heat accumulator 10 and circulates in sequence, so that the temperature required for burning of the combustion chamber 14 is reduced, the energy loss is reduced, the waste gas treatment efficiency is improved, and the energy is saved, residues and ashes generated after burning are effectively shielded through the filter screen 20 arranged in the carbon dioxide treatment box 5 and collected in the carbon dioxide treatment box 5 in a centralized manner, and the residues and ashes are reacted with carbon dioxide in the waste gas after burning through the arrangement of the sodium hydroxide crystals 21, so that the purposes of adsorbing and removing the carbon dioxide are achieved, and the purpose of protecting the environment is achieved.

Referring to fig. 2, in the utility model discloses in, all be provided with ventilative board 15 in first regenerator 10 and the second regenerator 11, first ceramic heat accumulator 12 and second ceramic heat accumulator 13 are placed respectively on ventilative board 15 of corresponding position, through ventilative board 15's setting, ensure the circulation of waste gas to and the support to first ceramic heat accumulator 12 and second ceramic heat accumulator 13, and have the purpose of large granule impurity in certain separation waste gas.

Referring to fig. 2-3, in the present invention, a first electric valve 16 is disposed at a connection portion of an air inlet pipe 2 and a first regenerator 10, a second electric valve 17 is disposed at a connection portion of the air inlet pipe 2 and a second regenerator 11, a third electric valve 18 is disposed at a connection portion of an air outlet pipe 4 and the first regenerator 10, a fourth electric valve 19 is disposed at a connection portion of the air outlet pipe 4 and the second regenerator 11, when the first electric valve 16 is opened and the second electric valve 17 is closed, exhaust gas enters the first regenerator 10, is combusted in a combustion chamber 14 to increase temperature, the fourth electric valve 19 is opened and the third electric valve 18 is closed, the combusted gas passes through a second ceramic regenerator 13, and the heat is transferred, so that the waste gas after heat dissipation is discharged through the gas outlet pipe 4, the first electric valve 16 is closed, the second electric valve 17 is opened, the waste gas is introduced into the second heat storage chamber 11 which is heated, the waste gas is heated after passing through the second ceramic heat storage body 13 with high temperature and is incinerated again in the combustion chamber 14, the third electric valve 18 is opened, the fourth electric valve 19 is closed, the incinerated gas is transferred after passing through the first ceramic heat storage body 12, the gas after heat dissipation is discharged through the gas outlet pipe 4 in the third electric valve 18, the cycle is carried out repeatedly, the waste gas treatment efficiency is improved, and the energy loss is effectively reduced.

Referring to fig. 4-5, the utility model discloses in, being provided with mounting groove 22 in the carbon dioxide treatment case 5, filter screen 20 adaptation is in mounting groove 22, through the setting of mounting groove 22, has made things convenient for filter screen 20 to fix a position to for placing of sodium hydroxide crystal 21 provides the support.

Referring to fig. 5, the utility model discloses in, be provided with a plurality of evenly distributed's reset spring 23 on one side inner wall of mounting groove 22, install same backing plate 24 on the reset spring 23, backing plate 24 contacts with filter screen 20, setting through reset spring 23 and backing plate 24, when sealing door 8 closes, sealing door 8 promotes filter screen 20 and removes to the tank bottom of mounting groove 22, thrust transmits to reset spring 23 on via backing plate 24, make reset spring 23 compress, thereby make the thrust of reset spring 23 and sealing door 8 to between filter screen 20 keep balance, and then guaranteed the stability of filter screen 20 in carbon dioxide treatment box 5, when opening sealing door 8 and clean or change sodium hydroxide crystal 21 to ashes, sealing door 8 disappears to the thrust of filter screen 20, the reaction force of reset spring 23 outwards promotes filter screen 20, thereby reach the purpose of conveniently changing and clearing up filter screen 20, and the purpose of the change of the ashes of burning of conveniently clearing up the collection and sodium hydroxide crystal 21.

Referring to fig. 6, the utility model discloses in, one side of sealing door 8 is provided with first latch segment 25, carbon dioxide treatment box 5 with one side be provided with second latch segment 26, same screw rod 9 is installed to first latch segment 25 and the 26 internal rotations of second latch segment, through the setting of first latch segment 25, second latch segment 26 and screw rod 9, the compactness between sealing door 8 and the carbon dioxide treatment box 5 has been strengthened, prevent that the waste gas that contains carbon dioxide from revealing from the gap, and prevented sodium hydroxide crystal 21's deliquescence effectively.

Referring to fig. 6, the utility model discloses in, through-hole 27 has been seted up in the first latch segment 25, screw rod 9 slidable mounting has been seted up in through-hole 27 in the second latch segment 26 screw hole 28, screw rod 9 adaptation is in screw hole 28, through the setting of through-hole 27 and screw hole 28, it is more convenient when screwing up to make screw rod 9 rotate, make the nut extrude first latch segment 25 through screw rod 9 displacement, thereby the leakproofness between sealing door 8 and the carbon dioxide processing case 5 has been guaranteed, moreover, the steam generator is simple in structure, and is convenient for operation.

Above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be included in the protection scope of the present invention.

Claims

1. The utility model provides a waste gas treatment device for regenerative thermal oxidation furnace, includes regenerative oxidation furnace (1), its characterized in that: a first regenerator (10) and a second regenerator (11) are arranged in the heat accumulating type oxidation furnace (1), a first ceramic regenerator (12) is arranged in the first regenerator (10), a second ceramic regenerator (13) is arranged in the second regenerator (11), an air inlet pipe (2) and an air outlet pipe (4) are arranged between the first regenerator (10) and the second regenerator (11), a centrifugal fan (3) is arranged at one end of the air inlet pipe (2), a carbon dioxide treatment box (5) is arranged at one end of the air outlet pipe (4), a chimney (6) is arranged on the carbon dioxide treatment box (5), the same combustion chamber (14) is arranged above the first regenerator (10) and the second regenerator (11), and a combustion valve (7) is arranged on the combustion chamber (14);

a filter screen (20) is movably mounted in the carbon dioxide treatment box (5), sodium hydroxide crystals (21) are placed on the filter screen (20), a sealing door (8) is rotatably mounted on one side of the carbon dioxide treatment box (5), and one side of the sealing door (8) is in contact with the filter screen (20).

2. The exhaust gas treatment apparatus for a regenerative thermal oxidizer of claim 1, wherein: and the first heat storage chamber (10) and the second heat storage chamber (11) are internally provided with a ventilating plate (15), and the first ceramic heat accumulator (12) and the second ceramic heat accumulator (13) are respectively arranged on the ventilating plate (15) at corresponding positions.

3. The exhaust gas treatment apparatus for a regenerative thermal oxidizer of claim 1, wherein: the heat storage device is characterized in that a first electric valve (16) is arranged at the joint of the air inlet pipe (2) and the first heat storage chamber (10), a second electric valve (17) is arranged at the joint of the air inlet pipe (2) and the second heat storage chamber (11), a third electric valve (18) is arranged at the joint of the air outlet pipe (4) and the first heat storage chamber (10), and a fourth electric valve (19) is arranged at the joint of the air outlet pipe (4) and the second heat storage chamber (11).

4. The exhaust gas treatment apparatus for a regenerative thermal oxidizer of claim 1, wherein: a mounting groove (22) is formed in the carbon dioxide treatment box (5), and the filter screen (20) is matched in the mounting groove (22).

5. The apparatus for treating exhaust gas for a regenerative thermal oxidizer of claim 4, wherein: a plurality of reset springs (23) which are uniformly distributed are arranged on the inner wall of one side of the mounting groove (22), the same backing plate (24) is mounted on each reset spring (23), and the backing plates (24) are in contact with the filter screen (20).

6. The exhaust gas treatment apparatus for a regenerative thermal oxidizer of claim 1, wherein: one side of sealing door (8) is provided with first latch segment (25), and the same one side of carbon dioxide processing case (5) is provided with second latch segment (26), and same screw rod (9) are installed to first latch segment (25) and second latch segment (26) internal rotation.

7. The exhaust gas treatment apparatus for a regenerative thermal oxidizer of claim 6, wherein: a through hole (27) is formed in the first locking block (25), the screw rod (9) is slidably mounted in the through hole (27), a threaded hole (28) is formed in the second locking block (26), and the screw rod (9) is matched in the threaded hole (28).