Tail gas treatment device

Abstract

The tail gas treatment device comprises a fan, a first valve, a direct discharge pipe, a purification pipe and a second valve, the fan is communicated with a production furnace and used for conveying tail gas, the first valve is communicated with the fan, and the two ends of the direct discharge pipe and the two ends of the purification pipe are communicated with the first valve and the second valve respectively. A catalytic box is arranged on the purification pipe and is used for treating tail gas, and the second valve is communicated with the discharge pipe and the utilization pipe; according to the tail gas treatment device, the first valve is adopted, whether treatment and purification are carried out or not is determined according to tail gas components, energy is saved, the environment is protected, the first valve is matched with the second valve, purified tail gas can be switched and directly discharged according to requirements, or waste heat of the tail gas is utilized and then discharged, and energy is further saved.

Description

Technical Field

[0001] The utility model relates to tail gas treatment technology, in particular to a tail gas treatment device. Background Art

[0002] The tail gas treatment device is a device that purifies tail gas under the action of a catalyst to reduce pollution to the environment. When high-temperature exhaust gas flows through a carrier coated with a catalyst made of precious metal materials, harmful substances in the exhaust gas undergo a chemical reaction under the action of the catalyst and temperature.

[0003] Existing industrial exhaust gas treatment devices are generally directly connected to the production furnace, and the exhaust gas is heated to a suitable temperature, then catalytically treated and finally discharged directly. The temperature of these gases is relatively high, and direct discharge will not be able to utilize the heat, resulting in energy waste. Moreover, when there are no harmful substances in the exhaust gas, the exhaust gas still needs to pass through the heating device and the exhaust gas treatment device before it can be discharged, which not only affects the emission efficiency, but also causes energy waste. Utility Model Content

[0004] In order to solve the defects of the above-mentioned prior art, the utility model provides an exhaust gas treatment device, which can select a suitable emission mode according to the exhaust gas composition, thereby saving energy and protecting the environment.

[0005] In order to achieve the above technical objectives, the utility model adopts the following technical solutions: an exhaust gas treatment device, connected to a production furnace, including a fan, a first valve, a straight exhaust pipe, a purification pipe and a second valve, the fan is connected to the production furnace, the fan is used to transport the exhaust gas, the first valve is connected to the fan, the two ends of the straight exhaust pipe and the purification pipe are respectively connected to the first valve and the second valve, the purification pipe is provided with a catalyst box, the catalyst box is used to treat the exhaust gas, and the second valve is connected to the discharge pipe and the utilization pipe.

[0006] Preferably, a flow meter is provided on the purification pipe.

[0007] Preferably, a thermometer and a heater are provided on the purification pipe, the thermometer is used to detect the exhaust gas temperature, and the heater is used to heat the exhaust gas temperature to an optimal catalytic temperature.

[0008] Preferably, an exhaust gas treatment device further comprises a control component, wherein the control component is connected to a flow meter, a thermometer, a heater, a fan, a first valve and a second valve.

[0009] Preferably, the exhaust pipe is connected to an exhaust chimney, and the exhaust chimney is used to discharge the purified exhaust gas into the atmosphere.

[0010] In summary, the utility model has achieved the following technical effects:

[0011] The exhaust gas treatment device of the utility model adopts a first valve to determine whether to perform treatment and purification according to the exhaust gas composition, which saves energy and is environmentally friendly. In addition, in conjunction with the second valve, it can be switched according to demand to directly discharge the purified exhaust gas or discharge the exhaust gas after utilizing the waste heat, further saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the tail gas treatment device of the utility model;

[0013] Explanation of the markings in the specification: 1. Production furnace; 2. Fan; 3. First valve; 4. Straight discharge pipe; 5. Purification pipe; 6. Flow meter; 7. Thermometer; 8. Heater; 9. Catalytic box; 10. Second valve; 11. Discharge pipe; 12. Utilization pipe. DETAILED DESCRIPTION

[0014] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0015] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0016] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0017] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0018] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0020] Embodiment 1:

[0021] like Figure 1 As shown, an exhaust gas treatment device is connected to a production furnace 1, comprising a fan 2, a first valve 3, a straight-discharge pipe 4, a purification pipe 5 and a second valve 10, wherein the fan 2 is connected to the production furnace 1, and the fan 2 is used to transport the exhaust gas, the first valve 3 is connected to the fan 2, the straight-discharge pipe 4 and the purification pipe 5 are respectively connected to the first valve 3 and the second valve 10 at both ends, the purification pipe 5 is provided with a catalyst box 9, the catalyst box 9 is used to treat the exhaust gas, the second valve 10 is connected to the discharge pipe 11 and the utilization pipe 12; and also includes a control component, which is connected to the flow meter 6, the thermometer 7, the heater 8, the fan 2, the first valve 3 and the second valve 10.

[0022] The exhaust gas treatment device of this embodiment adopts the first valve 3 to determine whether to treat and purify the exhaust gas according to the exhaust gas composition, which saves energy and is environmentally friendly. In addition, in conjunction with the second valve 10, it can be switched according to demand to directly discharge the purified exhaust gas or discharge it after utilizing the waste heat of the exhaust gas, further saving energy.

[0023] The purification pipe 5 is provided with a flow meter 6 .

[0024] The purification pipe 5 is provided with a thermometer 7 and a heater 8. The thermometer 7 is used to detect the exhaust gas temperature, and the heater 8 is used to heat the exhaust gas temperature to an optimal catalytic temperature.

[0025] The exhaust pipe 11 is connected to an exhaust chimney, and the exhaust chimney is used to discharge the purified exhaust gas into the atmosphere.

[0026] The pipe 12 can be connected to a waste heat recovery device, or directly connected to a workshop, so as to increase the ambient temperature of the workshop in winter and save energy.

[0027] Working principle: When the production furnace 11 is in production, exhaust gas will be generated and flow to the fan 2 through the pipeline. The operator determines whether to process and purify the exhaust gas based on the exhaust gas composition. When there are harmful components in the exhaust gas, the operator controls the first valve 3 through the control device to guide the exhaust gas to the purification pipe 5. The exhaust gas first passes through the flow meter 6 to detect the flow rate. The control component controls the power of the fan 2 according to the exhaust gas flow rate and adjusts the exhaust gas flow rate to optimize the catalytic efficiency. The exhaust gas then passes through the thermometer 7 to determine the exhaust gas temperature. The control component controls the heater 8 to heat the exhaust gas temperature to the optimal catalytic temperature. The exhaust gas enters the catalyst box 9 for purification. When there are no harmful components in the exhaust gas, the operator controls the first valve 3 through the control device to guide the exhaust gas to the straight exhaust pipe 4, which saves energy and is environmentally friendly. The exhaust gas enters the second valve 10 and can be switched according to demand to directly discharge the purified exhaust gas through the chimney or discharge the exhaust gas after waste heat utilization, thereby further saving energy.

[0028] The above description is only a preferred implementation mode of the present invention, and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A tail gas treatment device connected to a production furnace, characterized in that: It includes a fan, a first valve, a straight discharge pipe, a purification pipe and a second valve. The fan is connected to the production furnace and is used to transport exhaust gas. The first valve is connected to the fan. Both ends of the straight discharge pipe and the purification pipe are connected to the first valve and the second valve respectively. A catalyst box is provided on the purification pipe and is used to treat exhaust gas. The second valve is connected to the discharge pipe and the utilization pipe.

2. The exhaust gas treatment device according to claim 1, characterized in that: A flow meter is provided on the purification pipe.

3. The exhaust gas treatment device according to claim 1, characterized in that: The purification pipe is provided with a thermometer and a heater, wherein the thermometer is used to detect the exhaust gas temperature, and the heater is used to heat the exhaust gas temperature to an optimal catalytic temperature.

4. An exhaust gas treatment device according to claim 2 or 3, characterized in that: It also includes a control component, which is connected to the flow meter, the thermometer, the heater, the fan, the first valve and the second valve.

5. The exhaust gas treatment device according to claim 1, characterized in that: The exhaust pipe is connected to an exhaust chimney, and the exhaust chimney is used to discharge the purified exhaust gas into the atmosphere.

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