A novel regenerative thermal oxidizer

Abstract

The utility model relates to thermal oxidizer technical field especially relates to a novel regenerative thermal oxidizer, including regenerative thermal oxidizer body, spray tower, dust remover with spray tower air inlet end intercommunication, at least two layers of packing layer are provided in spray tower, and are provided with spray stand respectively above each layer packing layer, be provided with a plurality of downward spray nozzles on spray stand, and each spray nozzle is connected with circulating pump and liquid storage tank through absorption liquid delivery pipe, the small particulate matter contained in organic waste gas is intercepted and filtered through dust remover, prevents its into the heat accumulating type thermal oxidizer body of high temperature environment and blocks the heat exchange part, in addition still carries out the circulating spray through spray tower and utilizes lye, is used for absorbing the acid substance such as silicon oxide in organic waste gas, prevents its in the heat accumulating type thermal oxidizer of high temperature first melts and then condenses at heat exchange part, and takes place blockage, reduces the processing efficiency of regenerative thermal oxidizer.

Description

Technical Field

[0001] This utility model relates to the field of thermal oxidizer technology, and in particular to a novel regenerative thermal oxidizer. Background Technology

[0002] A regenerative thermal oxidizer (RTO) is a highly efficient and energy-saving industrial waste gas treatment device, mainly used to destroy volatile organic compounds (VOCs), harmful air pollutants (HAPs), and odorous gases in waste gases.

[0003] Clogging of regenerative thermal oxidizers (RTOs) is one of the main challenges affecting their stable operation and lifespan. It mainly stems from dust in the exhaust gas, silica powder produced by the combustion of siloxanes, salt crystals formed by halogen-containing compounds, and carbon black / tar produced by incomplete combustion. Utility Model Content

[0004] The purpose of this invention is to provide a novel regenerative thermal oxidizer that solves the problem of blockage that easily occurs in conventional regenerative thermal oxidizers (RTOs).

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This utility model provides a novel regenerative thermal oxidizer, including a regenerative thermal oxidizer body. The regenerative thermal oxidizer body includes an air inlet chamber, a distribution chamber disposed above the air inlet chamber, a heat exchange section disposed above the distribution chamber, a combustion chamber disposed above the heat exchange section, an exhaust pipe penetrating the distribution chamber, the heat exchange section, and the combustion chamber, and a rotor disposed at the bottom of the exhaust pipe for diverting the flow. It also includes a spray tower connected to the air inlet of the regenerative thermal oxidizer body and a dust collector connected to the air inlet of the spray tower. The dust collector is a bag filter dust collector, which is connected to an induced draft fan through an air outlet pipe, and the induced draft fan is connected to the spray tower through an air supply pipe. The spray tower is provided with at least two layers of packing material, and a spray frame is provided above each layer of packing material; the spray frame is provided with multiple downward spray nozzles, and each nozzle is connected to a circulating pump and a storage tank through an absorbent liquid delivery pipe.

[0006] In this embodiment, the dust collector is a pulse-jet bag filter, which is connected to the exhaust gas source through an exhaust gas inlet pipe.

[0007] Furthermore, in this embodiment, the top of the spray tower is provided with an organic waste gas conveying pipe that connects to the air inlet chamber.

[0008] Furthermore in this embodiment, the storage tank is connected to the bottom collection pool of the spray tower, and a dosing port for adding chemicals is provided on the storage tank.

[0009] Furthermore, in this embodiment, the heat exchange section is made of ceramic heat storage material.

[0010] Furthermore in this embodiment, the interior of the rotor is divided into upper and lower parts by an intermediate plate, and a first side opening and a second side opening are respectively provided on the side walls of the upper and lower parts; the bottom of the first side opening is connected to the air intake chamber, and the second side opening is connected to the exhaust pipe.

[0011] Furthermore in this embodiment, the rotor is driven by a rotating shaft and a motor.

[0012] Compared with the prior art, the beneficial technical effects of this utility model are as follows: In this invention, a dust collector filters and intercepts small particulate matter in organic waste gas, preventing it (such as silica dust) from softening and sintering in the high-temperature regenerative thermal oxidizer or from adhering and accumulating in the heat exchange section, thus preventing blockage. In addition, a spray tower is used to circulate alkaline solution for spraying, which absorbs acidic substances such as silica in the organic waste gas, preventing them from melting first in the high-temperature regenerative thermal oxidizer and then condensing in the heat exchange section, thus preventing blockage and reducing the treatment efficiency of the regenerative thermal oxidizer. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the regenerative thermal oxidizer of this utility model.

[0015] Explanation of reference numerals in the attached drawings: 1. Dust collector; 11. Exhaust gas inlet pipe; 12. Exhaust pipe; 2. Exhaust fan; 21. Air supply pipe; 3. Spray tower; 31. Packing layer; 32. Observation hole; 33. Organic waste gas conveying pipe; 4. Liquid storage tank; 41. Circulation pump; 42. Absorbent liquid conveying pipe; 5. Spray frame; 6. Regenerative thermal oxidizer body; 61. Combustion chamber; 62. Heat exchange section; 63. Distribution chamber; 64. Inlet chamber; 65. Combustion unit; 66. Exhaust pipe; 67. Rotor. Detailed Implementation

[0016] This embodiment discloses a novel regenerative thermal oxidizer, including a regenerative thermal oxidizer body 6. The regenerative thermal oxidizer body 6 includes an air inlet chamber 64, a distribution chamber 63 installed above the air inlet chamber 64, a heat exchange section 62 installed above the distribution chamber 63, a combustion chamber 61 installed above the heat exchange section 62, and an exhaust pipe 66 penetrating the distribution chamber 63, the heat exchange section 62, and the combustion chamber 61. A rotor 67 is installed at the bottom of the exhaust pipe 66 and is used for flow diversion. Specifically, the heat exchange section 62 is made of ceramic regenerative material. The interior of the rotor 67 is divided into upper and lower parts by a middle plate, and a first side opening and a second side opening are respectively provided on the side walls of the upper and lower parts. The bottom of the first side opening is connected to the air inlet chamber 64, and the second side opening is connected to the exhaust pipe 66. The rotor 67 is driven by a rotating shaft and a motor.

[0017] In this embodiment, the regenerative thermal oxidizer body 6 is a technical solution with patent number CN100423815C.

[0018] In this embodiment, in order to solve the clogging problem of the regenerative thermal oxidizer (RTO), the silicon salts or oxides and small particulate matter contained in the organic waste gas are treated to prevent the heat exchange section 62 from being blocked after the regenerative thermal oxidizer body 6 melts or condenses in the high-temperature environment.

[0019] In this embodiment, the system also includes a spray tower 3 connected to the air inlet of the regenerative thermal oxidizer body 6 and a dust collector 1 connected to the air inlet of the spray tower 3; wherein the dust collector 1 is a bag filter dust collector, which is connected to an induced draft fan 2 through an air outlet pipe 12, and the induced draft fan 2 is connected to the spray tower 3 through an air supply pipe 21; at least two layers of packing 31 are installed on the spray tower 3, and a spray frame 5 is installed above each layer of packing 31; a plurality of downward spray nozzles are installed on the spray frame 5, and each nozzle is connected to a circulating pump 41 and a storage tank 4 through an absorbent liquid delivery pipe 42.

[0020] Specifically, the dust collector 1 is a pulse-jet bag filter, which is connected to the exhaust gas source through the exhaust gas inlet pipe 11. After the exhaust gas source enters the dust collector 1, the bag filter intercepts the small particulate matter contained in the exhaust gas, preventing it from entering the subsequent processing steps. Furthermore, the periodic pulse backflushing of the dust collector 1 prevents the filter bags from clogging.

[0021] In this embodiment, an organic waste gas conveying pipe 33 connected to the air inlet chamber 64 is installed at the top of the spray tower 3. The liquid storage tank 4 is connected to the collection pool at the bottom of the spray tower 3, and a dosing port for adding chemicals is provided on the liquid storage tank 4.

[0022] In this embodiment, acidic substances such as HCl and silicon dioxide in the organic waste gas are absorbed and treated by alkaline solution to prevent them from clogging the heat exchange section 62 inside the regenerative thermal oxidizer body 6.

[0023] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A novel regenerative thermal oxidizer, comprising a regenerative thermal oxidizer body (6), the regenerative thermal oxidizer body (6) comprising an intake chamber (64), a distribution chamber (63) disposed above the intake chamber (64), a heat exchange section (62) disposed above the distribution chamber (63), a combustion chamber (61) disposed above the heat exchange section (62), and an exhaust pipe (66) penetrating the distribution chamber (63), the heat exchange section (62), and the combustion chamber (61), and a rotor (67) disposed at the bottom of the exhaust pipe (66) for flow diversion; characterized in that: It also includes a spray tower (3) connected to the air inlet of the regenerative thermal oxidizer body (6) and a dust collector (1) connected to the air inlet of the spray tower (3). The dust collector (1) is a bag filter, which is connected to an induced draft fan (2) through an air outlet pipe (12), and the induced draft fan (2) is connected to the spray tower (3) through an air supply pipe (21). The spray tower (3) is provided with at least two layers of packing (31), and a spray frame (5) is provided above each layer of packing (31); the spray frame (5) is provided with multiple downward spray nozzles, and each nozzle is connected to a circulating pump (41) and a storage tank (4) through an absorbent delivery pipe (42).

2. The novel regenerative thermal oxidizer according to claim 1, characterized in that: The dust collector (1) is a pulse-jet bag filter, which is connected to the exhaust gas source through the exhaust gas inlet pipe (11).

3. The novel regenerative thermal oxidizer according to claim 1, characterized in that: The top of the spray tower (3) is provided with an organic waste gas conveying pipe (33) that connects to the air inlet chamber (64).

4. The novel regenerative thermal oxidizer according to claim 3, characterized in that: The storage tank (4) is connected to the bottom collection pool of the spray tower (3), and a dosing port for adding chemicals is provided on the storage tank (4).

5. The novel regenerative thermal oxidizer according to claim 1, characterized in that: The heat exchange section (62) is made of ceramic heat storage material.

6. The novel regenerative thermal oxidizer according to claim 1, characterized in that: The rotor (67) is divided into upper and lower parts by a middle plate, and a first side opening and a second side opening are respectively provided on the side walls of the upper and lower parts; the bottom of the first side opening is connected to the air intake chamber (64), and the second side opening is connected to the exhaust pipe (66).

7. The novel regenerative thermal oxidizer according to claim 6, characterized in that: The rotor (67) is driven by a rotating shaft and a motor.

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