Waste gas treatment equipment resistant to strong corrosion environment

Abstract

The utility model discloses waste gas treatment equipment resistant to a strong corrosion environment, which comprises a shell, a heat preservation layer is arranged on the inner wall of the shell, a heat accumulator is arranged in the heat preservation layer, a combustion chamber is arranged at the top in the shell, a connecting pipe is arranged at the lower part in the shell, the connecting pipe is communicated with a first interface of a rotary valve, and a second interface of the rotary valve is communicated with a second interface of the rotary valve. The rotary valve is arranged in the distribution cavity, an air inlet connector is arranged on the distribution cavity, the air inlet connector is communicated with a second connector of the rotary valve, and a third connector of the rotary valve is communicated with the air outlet connector. According to the waste gas treatment equipment resistant to the strong corrosion environment, the problem that traditional rotary RTO waste gas treatment equipment is easily corroded by waste gas in the strong corrosion waste gas treatment process is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas treatment equipment, and in particular relates to waste gas treatment equipment resistant to highly corrosive environments. Background Art

[0002] In the waste gas environmental protection industry, the commonly used rotary RTO waste gas treatment equipment has become a mature technology in the waste gas treatment process. However, when treating highly corrosive waste gas, traditional rotary RTO waste gas treatment equipment is made of carbon steel or stainless steel. These materials are difficult to effectively and thoroughly solve the waste gas corrosion problem, which can easily lead to equipment corrosion. In severe cases, this can affect the waste gas treatment and purification efficiency, cause waste gas / waste liquid leakage, and cause secondary environmental pollution. This reduces the practicality of rotary RTO waste gas treatment equipment. Utility Model Content

[0003] The purpose of the utility model is to provide an exhaust gas treatment device resistant to highly corrosive environments, so as to solve the problem that traditional rotary RTO exhaust gas treatment equipment is easily corroded by exhaust gas during the process of treating highly corrosive exhaust gas.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an exhaust gas treatment equipment resistant to highly corrosive environments, comprising a shell, an insulation layer is provided on the inner wall of the shell, a heat storage body is provided inside the insulation layer, a combustion chamber is provided at the top of the shell, a connecting pipe is provided at the lower part of the shell, the connecting pipe is connected to the first interface of the rotary valve, the rotary valve is provided in the distribution chamber, an air inlet interface is provided on the distribution chamber, the air inlet interface is connected to the second interface of the rotary valve, and the third interface of the rotary valve is connected to the air outlet interface.

[0005] As a preferred technical solution of the present invention, the thermal insulation layer is a thermal insulation cotton layer.

[0006] As a preferred technical solution of the present invention, the heat storage body is a ceramic heat storage body.

[0007] As a preferred technical solution of the present invention, there are multiple connecting pipes.

[0008] As a preferred technical solution of the present invention, the heat storage body is composed of multiple modules spliced ​​together in an upper and lower manner.

[0009] The beneficial effects of the present invention are as follows: (1) The waste gas treatment equipment resistant to highly corrosive environments of the present invention, comprising a rotary RTO lower box consisting of an air inlet interface, a rotary valve, a distribution chamber, a connecting pipe, and an air outlet interface, is made of a carbon fiber and graphite fiber anti-corrosion material, which can effectively reduce the weight of the equipment. At the same time, compared with high-alloy stainless steel materials that can withstand highly corrosive gases, the investment cost of the rotary RTO for treating highly corrosive gases can also be effectively reduced; (2) The waste gas treatment equipment resistant to highly corrosive environments of the present invention, having an outer shell made of ordinary carbon steel structure, has thermal insulation cotton and ceramic heat storage bodies installed therein in sequence, which can effectively solve the problem that traditional rotary RTO equipment cannot treat highly corrosive gases. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0011] Figure 1 It is a structural schematic diagram of the waste gas treatment equipment of the utility model which is resistant to highly corrosive environments.

[0012] In the figure: 1. Air inlet interface, 2. Distribution chamber, 3. Connecting pipe, 4. Rotary valve, 5. Air outlet interface, 6. Shell, 7. Insulation layer, 8. Heat storage body, 9. Combustion chamber. DETAILED DESCRIPTION

[0013] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0014] In the description of this utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0015] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0016] Example 1

[0017] like Figure 1As shown, the waste gas treatment equipment resistant to highly corrosive environments of the present invention includes a shell 6, an insulation layer 7 is provided on the inner wall of the shell 6, a heat storage body 8 is provided inside the insulation layer 7, a combustion chamber 9 is provided at the top of the shell 6, a connecting pipe 3 is provided at the lower part of the shell 6, the connecting pipe 3 is communicated with the first interface of the rotary valve 4, the rotary valve 4 is arranged in the distribution chamber 2, and an air inlet interface 1 is provided on the distribution chamber 2, the air inlet interface 1 is communicated with the second interface of the rotary valve 4, and the third interface of the rotary valve 4 is communicated with the air outlet interface 5.

[0018] The waste gas treatment equipment resistant to highly corrosive environments of the present invention is developed to address the shortcomings of traditional rotary RTO equipment, such as its inability to withstand highly corrosive waste gases and its high price. It is a new type of waste gas treatment product that can withstand highly corrosive gases. The waste gas treatment equipment resistant to highly corrosive environments is based on the rotary RTO structure and adopts new corrosion-resistant materials for the low-temperature section. It mainly includes an RTO lower box and an RTO upper box, wherein the RTO lower box is composed of an inlet interface 1, a rotary valve 4, a distribution chamber 2, a connecting pipe 3, and an air outlet interface 5; the RTO upper box is composed of a shell 6, a heat storage body 8, and an insulation layer 7. In the waste gas treatment equipment resistant to highly corrosive environments of the present invention, the RTO lower box and the RTO upper box are manufactured in sections and can be transported separately to the site for assembly. The RTO lower box and the RTO upper box are connected by special resin bonding, which can effectively solve the installation problems caused by welding of different materials and effectively shorten the installation period of the equipment.

[0019] like Figure 1 As shown, the waste gas treatment equipment of the utility model that is resistant to highly corrosive environments, when working, the highly corrosive waste gas first enters the interior of the rotating RTO through the air inlet interface 1 of the lower chamber, and is evenly distributed in the distribution chamber 2 under the action of the rotary valve 4, and then enters the RTO upper box through the connecting pipe 3.

[0020] After entering the upper box of the RTO, the highly corrosive exhaust gas is preheated by the heat storage body 8 and then enters the combustion chamber 9. After high-temperature oxidation, the highly corrosive exhaust gas produces purified gas. After cooling by the heat storage body 8, the purified gas enters the distribution chamber 2 from the connecting pipe 3 and is discharged through the gas outlet interface 5 under the action of the rotary valve 4.

[0021] The outermost shell 6 of the RTO upper housing is constructed from ordinary carbon steel. Inside, an insulation layer 7 and a heat storage element 8 are installed. The insulation layer 7 isolates the exhaust gas from the upper housing, reducing convection heat dissipation. The heat storage element 8 preheats the exhaust gas and recovers heat from the purified gas, ensuring that the outlet purified flue gas temperature does not exceed the maximum operating temperature of the new corrosion-resistant material.

[0022] Compared with the existing rotary RTO waste gas treatment equipment, the waste gas treatment equipment of the utility model that is resistant to highly corrosive environments has the following advantages:

[0023] (1) The exhaust gas treatment device adopts a rotary RTO structure, which can be divided into an upper box and a lower box. According to the corrosion characteristics of highly corrosive gases, different materials are selected to deal with the corrosion of highly corrosive gases, while reducing the equipment manufacturing cost.

[0024] (2) The lower box body consists of an air inlet, a rotary valve, a distribution chamber, and an air outlet. Due to the low inlet temperature of the flue gas in the flow section of the lower box body, the corrosive components in the highly corrosive gas can easily cause dew point corrosion, which is also the main factor causing serious corrosion of the equipment. To solve the problem of dew point corrosion, the box body is made of carbon fiber and graphite fiber, which are prepared in a certain proportion to be resistant to strong acid corrosion. At the same time, the material can withstand the operating temperature of the lower box body to ensure that the low-temperature flow section will not be corroded.

[0025] (3) The upper box body consists of an outer shell, a heat storage body, and an insulation layer. Since the exhaust gas temperature in the flow section of the upper box body is relatively high, much higher than the flue gas dew point temperature, and the insulation layer and the heat storage body can effectively isolate the exhaust gas from contacting the outer shell body, highly corrosive exhaust gas will not cause excessive corrosion to the upper box body. Considering the overall structural strength of the equipment and the requirements of manufacturing economy, the outer shell body is made of ordinary carbon steel.

[0026] Example 2

[0027] like Figure 1 As shown, different from Example 1, in Example 2 of the waste gas treatment equipment of the utility model that is resistant to highly corrosive environments, the insulation layer 7 is an insulation cotton insulation layer, which has low cost and good insulation effect.

[0028] Example 3

[0029] like Figure 1 As shown, different from Example 2, in Example 3 of the utility model of the waste gas treatment equipment resistant to highly corrosive environments, the heat storage body 8 is a ceramic heat storage body, which can play a better preheating and anti-corrosion role, and at the same time has low cost and good stability.

[0030] Example 4

[0031] like Figure 1 As shown, different from Example 3, in Example 4 of the utility model of the waste gas treatment equipment resistant to highly corrosive environments, there are multiple connecting pipes 3, which facilitates the circulation of waste gas and prevents blockage of a certain connecting pipe 3 causing poor circulation.

[0032] Example 5

[0033] like Figure 1 As shown, different from Example 4, in Example 5 of the waste gas treatment equipment of the utility model that is resistant to highly corrosive environments, the heat storage body 8 is composed of multiple modules spliced ​​up and down, which is convenient for on-site assembly and later maintenance.

[0034] The above description shows and describes several preferred embodiments of the utility model. However, as previously mentioned, it should be understood that the utility model is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the utility model can be used in various other combinations, modifications, and environments and can be modified within the scope of the utility model described herein through the above teachings or through technology or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the utility model should be protected by the scope of the claims appended to the utility model.

Claims

1. Exhaust gas treatment equipment resistant to strong corrosive environment, characterized by: The invention comprises a shell (6), an insulation layer (7) is provided on the inner wall of the shell (6), a heat storage body (8) is provided inside the insulation layer (7), a combustion chamber (9) is provided at the top of the shell (6), a connecting pipe (3) is provided at the lower part of the shell (6), the connecting pipe (3) is communicated with a first interface of a rotary valve (4), the rotary valve (4) is provided in a distribution chamber (2), an air inlet interface (1) is provided on the distribution chamber (2), the air inlet interface (1) is communicated with a second interface of the rotary valve (4), and a third interface of the rotary valve (4) is communicated with an air outlet interface (5); the insulation layer (7) is a thermal insulation cotton insulation layer.

2. The waste gas treatment equipment resistant to strong corrosive environment according to claim 1, characterized in that: The heat storage body (8) is a ceramic heat storage body.

3. The waste gas treatment equipment resistant to strong corrosive environment according to claim 2, characterized in that: There are multiple connecting pipes (3).

4. The waste gas treatment equipment resistant to strong corrosive environment according to claim 3, characterized in that: The heat storage body (8) is formed by splicing a plurality of modules up and down.

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