Carbon dioxide organic waste gas treatment device

Abstract

The utility model discloses a carbon dioxide organic waste gas treatment device, which comprises a waste gas collection module, a pretreatment module, an adsorption module, a catalytic combustion module and an emission module, and can efficiently treat carbon dioxide organic waste gas through the synergistic effect of the waste gas collection module, the pretreatment module, the adsorption module, the catalytic combustion module, the emission module and the like. And the processing efficiency is improved. Meanwhile, the catalytic combustion technology is adopted, so that the energy consumption is reduced, the generation of secondary pollutants is reduced, the operation cost is low, and good environmental protection benefits and economic benefits are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste gas treatment technical field, concretely, relate to a carbon dioxide organic waste gas treatment device. BACKGROUND

[0002] Carbon dioxide is a common organic compound, in the production process of petroleum chemical industry, pharmacy, printing and other industries, often will produce the organic waste gas containing carbon dioxide. These carbon dioxide organic waste gas if direct emission to the atmosphere, not only can cause serious pollution to the environment, still can produce the harm to human health, such as causing respiratory disease, nervous system damage etc.

[0003] At present, the treatment method of carbon dioxide organic waste gas mainly has adsorption method, combustion method etc. Although adsorption method can effectively adsorb carbon dioxide waste gas, but adsorbent needs to be regenerated after reaching saturation, otherwise will influence adsorption effect;Combustion method can completely decompose carbon dioxide, but traditional combustion method energy consumption is high, and in the combustion process, possible secondary pollutant is produced. The existing carbon dioxide organic waste gas treatment device has the problems such as low processing efficiency, high energy consumption, large operation cost, cannot satisfy the increasingly strict environmental protection requirement. Therefore, developing a kind of efficient, energy-saving, environmental protection carbon dioxide organic waste gas treatment device has important practical significance. UTILITY MODEL CONTENT

[0004] The utility model is aimed at providing a kind of carbon dioxide organic waste gas treatment device to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of carbon dioxide organic waste gas treatment device, including waste gas collection module, pretreatment module, adsorption module, catalytic combustion module, discharge module, the waste gas collection module includes gas collecting hood, the gas collecting hood top is fixedly connected with inlet pipe, the first fan is set on the inlet pipe, the pretreatment module includes the filter box being connected with inlet pipe, the filter box is provided with coarse filter screen in upper portion, the filter box is provided with medium filter screen in lower portion, the adsorption module includes the parallel gas pipe being connected to the filter box bottom, the parallel gas pipe dispersion end is connected with multiple adsorption tanks, the adsorption tank is filled with activated carbon adsorbent layer, the adsorption tank top is provided with gas inlet, gas outlet and desorption port, the catalytic combustion module includes the desorption gas pipe being connected to the desorption port, the desorption gas pipe is connected with catalytic combustion chamber bottom end, the catalytic combustion chamber is provided with heating device in lower portion, the catalytic combustion chamber is provided with catalyst layer in upper portion, the catalytic combustion chamber top is equipped with exhaust port, the discharge module includes the exhaust pipe being connected with the gas outlet and exhaust port, the second fan is set on the exhaust pipe, the exhaust pipe end is provided with monitoring device.

[0006] As the preferred technical scheme of the utility model, the coarse filter screen in the filter box is located at the upstream of the medium filter screen, and the coarse filter screen and the medium filter screen are both detachable structures.

[0007] As the preferred technical scheme of the utility model, a plurality of the adsorption tanks are arranged in parallel, and a valve is arranged at the air inlet, the air outlet and the desorption port of each adsorption tank.

[0008] As the preferred technical scheme of the utility model, the catalyst layer adopts a noble metal catalyst, and the heating device is an electric heating pipe.

[0009] As the preferred technical scheme of the utility model, the monitoring device comprises a concentration sensor and a temperature sensor, and is used for monitoring the carbon dioxide concentration and temperature in the exhaust gas.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The device can efficiently treat carbon dioxide organic waste gas and improve the treatment efficiency through the synergistic effect of multiple modules such as waste gas collection, pretreatment, adsorption, catalytic combustion and emission. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0013] Figure 1 It is a structure schematic view of a carbon dioxide organic waste gas treatment device according to an embodiment of the utility model;

[0014] Figure 2 It is a structure schematic view of a filter box of a carbon dioxide organic waste gas treatment device according to an embodiment of the utility model;

[0015] Figure 3 It is a structure schematic view of an adsorption tank of a carbon dioxide organic waste gas treatment device according to an embodiment of the utility model;

[0016] Figure 4 It is a structure schematic view of a catalytic combustion chamber of a carbon dioxide organic waste gas treatment device according to an embodiment of the utility model.

[0017] Reference signs:

[0018] 1, gas cover; 2, air inlet pipe; 3, first fan; 4, filter box; 5, coarse filter screen; 6, medium filter screen; 7, parallel air pipe; 8, adsorption tank; 9, activated carbon adsorbent; 10, air inlet; 11, air outlet; 12, desorption port; 13, desorption gas pipe; 14, catalytic combustion chamber; 15, heating device; 16, catalyst layer; 17, exhaust port; 18, exhaust pipe; 19, second fan; 20, monitoring device; 21, valve. DETAILED DESCRIPTION

[0019] Next, the utility model is described further in combination with the drawings and the specific implementation:

[0020] Please refer to Figures 1-4 , a kind of carbon dioxide organic waste gas treatment device according to the utility model embodiment, including waste gas collection module, pretreatment module, adsorption module, catalytic combustion module, discharge module.

[0021] Waste gas collection module: gas cover 1 is installed above the equipment generating carbon dioxide organic waste gas, is connected with subsequent pretreatment module by air inlet pipe 2, and first fan 3 is arranged on air inlet pipe 2.Under the action of first fan 3, carbon dioxide-containing organic waste gas is collected into air inlet pipe 2 and is transported to pretreatment module.

[0022] Pretreatment module: the filter box 4 of pretreatment module is connected with air inlet pipe 2, and coarse filter screen 5 and medium filter screen 6 are sequentially arranged in filter box 4.Waste gas is first passed through coarse filter screen 5, removes large particle dust therein, then is further passed through medium filter screen 6, further removes part of small particles, to prevent these particles from entering subsequent module to cause damage to adsorbent and catalyst.Coarse filter screen 5 and medium filter screen 6 are both detachable structure, facilitate regular replacement and cleaning.

[0023] Adsorption module: adsorption module includes multiple parallelly arranged adsorption tanks 8, and activated carbon adsorbent 9 is filled in adsorption tank 8.Valves 21 are arranged at each air inlet 10, air outlet 11 and desorption port 12 of adsorption tank 8.Pretreated waste gas enters adsorption tank 8 by pipeline, and under the action of activated carbon adsorbent 9, carbon dioxide is adsorbed on adsorbent surface, and purified gas is discharged through air outlet 11.When adsorbent in one of adsorption tank 8 reaches saturation, close the air inlet 10 and air outlet 11 valves 21 of the adsorption tank 8, open the desorption port 12 valve 21, and carry out desorption operation.

[0024] Catalytic combustion module: the catalytic combustion chamber 14 of the catalytic combustion module is connected with the desorption port 12 of the adsorption module. The catalytic combustion chamber 14 is provided with a catalyst layer 16 and a heating device 15, the catalyst layer 16 adopts a noble metal catalyst, and the heating device 15 is an electric heating pipe. The carbon dioxide exhaust gas desorbed from the adsorption tank 8 enters the catalytic combustion chamber 14, is heated by the heating device 15, reaches the ignition temperature of the catalyst, and is decomposed into carbon dioxide and water under the action of the catalyst layer 16.

[0025] Discharge module: the exhaust pipe 18 of the discharge module is connected with the gas outlet 11 of the adsorption module and the exhaust port 17 of the catalytic combustion module, and the exhaust pipe 18 is provided with a second fan 19 and a monitoring device 20. The monitoring device 20 includes a concentration sensor and a temperature sensor, which are used for monitoring the carbon dioxide concentration and temperature in the exhaust gas in real time. The gas treated by adsorption and catalytic combustion is discharged into the atmosphere through the exhaust pipe 18 under the action of the second fan 19. If the monitoring device 20 detects that the carbon dioxide concentration in the exhaust gas exceeds the standard, the operating parameters of the treatment device can be adjusted to ensure that the exhaust gas meets the environmental protection standard.

[0026] In the description of the present application, it should be explained that the terms "top", "bottom", "one side", "the other side", "front", "back", "intermediate position", "interior", "top end", "bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] Finally, it should be pointed out that: the above-mentioned only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A carbon dioxide organic waste gas treatment device, characterized in that, The system includes a waste gas collection module, a pretreatment module, an adsorption module, a catalytic combustion module, and an emission module. The waste gas collection module includes a gas collection hood (1), with an air inlet pipe (2) fixedly connected to the top of the gas collection hood (1). A first fan (3) is installed on the air inlet pipe (2). The pretreatment module includes a filter box (4) connected to the air inlet pipe (2). A coarse filter screen (5) is installed at the top of the filter box (4), and a medium-efficiency filter screen (6) is installed at the bottom of the filter box (4). The adsorption module includes a parallel gas pipe (7) connected to the bottom of the filter box (4). The dispersed end of the parallel gas pipe (7) is connected to multiple adsorption tanks (8). The adsorption tanks (8) are filled with activated carbon adsorbent (9). 8) The top is provided with an air inlet (10), an air outlet (11) and a desorption port (12). The catalytic combustion module includes a desorption gas pipe (13) connected to the desorption port (12). The desorption gas pipe (13) is connected to the bottom of the catalytic combustion chamber (14). A heating device (15) is provided in the lower part of the catalytic combustion chamber (14). A catalyst layer (16) is provided in the upper part of the catalytic combustion chamber (14). An exhaust port (17) is provided at the top of the catalytic combustion chamber (14). The emission module includes an exhaust pipe (18) connected to the air outlet (11) and the exhaust port (17). A second fan (19) is provided on the exhaust pipe (18). A monitoring device (20) is provided at the end of the exhaust pipe (18).

2. The carbon dioxide organic waste gas treatment device according to claim 1, characterized in that, The coarse filter (5) in the filter box (4) is located upstream of the medium filter (6), and both the coarse filter (5) and the medium filter (6) are detachable structures.

3. The carbon dioxide organic waste gas treatment device according to claim 1, characterized in that, Multiple adsorption tanks (8) are arranged in parallel, and each adsorption tank (8) is provided with a valve (21) at its air inlet (10), air outlet (11) and desorption port (12).

4. The carbon dioxide organic waste gas treatment device according to claim 1, characterized in that, The catalyst layer (16) is made of a precious metal catalyst, and the heating device (15) is an electric heating tube.

5. The carbon dioxide organic waste gas treatment device according to claim 1, characterized in that, The monitoring device (20) includes a concentration sensor and a temperature sensor for monitoring the carbon dioxide concentration and temperature in the emitted gas.

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