CN224024633U - A carbon dioxide organic waste gas treatment device - Google Patents

Abstract

This utility model discloses a carbon dioxide organic waste gas treatment device, including a waste gas collection module, a pretreatment module, an adsorption module, a catalytic combustion module, and an emission module. Through the synergistic effect of multiple modules such as waste gas collection, pretreatment, adsorption, catalytic combustion, and emission, this device can efficiently treat carbon dioxide organic waste gas, improving treatment efficiency. Simultaneously, the use of catalytic combustion technology reduces energy consumption and the generation of secondary pollutants, resulting in low operating costs and good environmental and economic benefits.

Description

Carbon dioxide organic waste gas treatment device

Technical Field

The utility model relates to the technical field of waste gas treatment, in particular to a carbon dioxide organic waste gas treatment device.

Background

Carbon dioxide is a common organic compound, and organic waste gas containing carbon dioxide is often generated in the production process of petrochemical industry, pharmacy, printing and other industries. If the carbon dioxide organic waste gas is directly discharged into the atmosphere, the carbon dioxide organic waste gas not only can cause serious pollution to the environment, but also can cause harm to human health, such as respiratory diseases, nervous system injury and the like.

At present, methods for treating carbon dioxide organic waste gas mainly include an adsorption method, a combustion method and the like. The adsorption method can effectively adsorb carbon dioxide waste gas, but the adsorbent needs to be regenerated after reaching saturation, otherwise the adsorption effect is affected, and the combustion method can thoroughly decompose the carbon dioxide, but the traditional combustion method has higher energy consumption and can generate secondary pollutants in the combustion process. The existing carbon dioxide organic waste gas treatment device has the problems of low treatment efficiency, high energy consumption, high operation cost and the like, and cannot meet the increasingly strict environmental protection requirements. Therefore, the development of the high-efficiency, energy-saving and environment-friendly carbon dioxide organic waste gas treatment device has important practical significance.

Disclosure of utility model

The utility model aims to provide a carbon dioxide organic waste gas treatment device for solving the problems in the background technology.

In order to achieve the above purpose, the technical scheme includes that the carbon dioxide organic waste gas treatment device comprises a waste gas collecting module, a pretreatment module, an adsorption module, a catalytic combustion module and a discharge module, wherein the waste gas collecting module comprises a gas collecting cover, a gas inlet pipe is fixedly connected to the upper portion of the gas collecting cover, a first fan is arranged on the gas inlet pipe, the pretreatment module comprises a filter box connected with the gas inlet pipe, a coarse filter screen is arranged on the upper portion in the filter box, a medium-efficiency filter screen is arranged on the lower portion in the filter box, the adsorption module comprises a parallel gas pipe connected with the bottom of the filter box, the dispersed ends of the parallel gas pipe are connected with a plurality of adsorption tanks, an activated carbon adsorbent layer is filled in the adsorption tanks, a gas inlet, a gas outlet and a desorption port are formed in the tops of the adsorption tanks, the catalytic combustion module comprises a desorption gas pipe connected to the desorption port, the desorption gas pipe is connected to the bottom of a catalytic combustion chamber, a heating device is arranged below the catalytic combustion chamber, a catalyst layer is arranged on the upper portion in the catalytic combustion chamber, a gas outlet is arranged on the top of the catalytic combustion chamber, the discharge module comprises a gas outlet and a second fan is arranged on the tail end of the gas outlet, and a monitoring device is arranged on the tail end of the gas pipe.

As the preferable technical scheme of the utility model, the coarse-effect filter screen in the filter box is positioned at the upstream of the medium-effect filter screen, and the coarse-effect filter screen and the medium-effect filter screen are of detachable structures.

As a preferable technical scheme of the utility model, a plurality of adsorption tanks are arranged in parallel, and valves are arranged at the air inlet, the air outlet and the desorption port of each adsorption tank.

As a preferable technical scheme of the utility model, the catalyst layer adopts a noble metal catalyst, and the heating device is an electric heating tube.

As a preferred embodiment of the present utility model, the monitoring device includes a concentration sensor and a temperature sensor for monitoring the concentration and temperature of carbon dioxide in the exhaust gas.

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

The device can efficiently treat carbon dioxide organic waste gas through the synergistic effect of a plurality of modules such as waste gas collection, pretreatment, adsorption, catalytic combustion, emission and the like, and improves the treatment efficiency. Meanwhile, the catalytic combustion technology is adopted to reduce energy consumption, reduce the generation of secondary pollutants, and has low operation cost, good environmental protection benefit and economic benefit.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing the overall structure of a carbon dioxide organic waste gas treatment apparatus according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a filter box of a carbon dioxide organic waste gas treatment device according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of the structure of an adsorption tank of a carbon dioxide organic waste gas treatment device according to an embodiment of the present utility model;

fig. 4 is a schematic structural view of a catalytic combustor of a carbon dioxide organic exhaust gas treatment device according to an embodiment of the present utility model.

Reference numerals:

1. A gas collecting hood; 2, an air inlet pipe, 3, a first fan, 4, a filter box, 5, a coarse filter screen, 6, a medium filter screen, 7, a parallel air pipe, 8, an adsorption tank, 9, an active carbon adsorbent, 10, an air inlet, 11, an air outlet, 12, a desorption port, 13, a desorption air pipe, 14, a catalytic combustion chamber, 15, a heating device, 16, a catalyst layer, 17, an air outlet, 18, an exhaust pipe, 19, a second fan, 20, a monitoring device, 21 and a valve.

Detailed Description

The utility model is further described below with reference to the accompanying drawings and detailed description:

Referring to fig. 1 to 4, a carbon dioxide organic waste gas treatment device according to an embodiment of the utility model includes a waste gas collection module, a pretreatment module, an adsorption module, a catalytic combustion module, and an emission module.

The waste gas collecting module is characterized in that a gas collecting hood 1 is arranged above equipment for generating carbon dioxide organic waste gas and is connected with a subsequent pretreatment module through a gas inlet pipe 2, and a first fan 3 is arranged on the gas inlet pipe 2. Under the action of the first fan 3, the organic waste gas containing carbon dioxide is collected into the air inlet pipe 2 and is conveyed to the pretreatment module.

The pretreatment module is characterized in that a filter box 4 of the pretreatment module is connected with an air inlet pipe 2, and a coarse filter screen 5 and a medium filter screen 6 are sequentially arranged in the filter box 4. The waste gas firstly passes through the coarse filter screen 5 to remove large particle dust, and then passes through the medium filter screen 6 to further remove part of fine particles, so that the particles are prevented from entering the subsequent modules to damage the adsorbent and the catalyst. The coarse filter screen 5 and the medium filter screen 6 are of detachable structures, so that the medium filter screen is convenient to replace and clean regularly.

Adsorption module the adsorption module includes a plurality of parallelly connected adsorption tanks 8 that set up, and the adsorption tank 8 intussuseption is filled with activated carbon adsorbent 9. The adsorption tank 8 is provided with an air inlet 10, an air outlet 11 and a desorption port 12, and a valve 21 is arranged at each of the air inlet 10, the air outlet 11 and the desorption port 12. The pretreated waste gas enters the adsorption tank 8 through a pipeline, carbon dioxide is adsorbed on the surface of the adsorbent under the action of the activated carbon adsorbent 9, and purified gas is discharged through the gas outlet 11. When the adsorbent in one of the adsorption tanks 8 is saturated, the valves 21 of the air inlet 10 and the air outlet 11 of the adsorption tank 8 are closed, and the valve 21 of the desorption port 12 is opened to perform desorption operation.

Catalytic combustion module the catalytic combustion chamber 14 of the catalytic combustion module is connected with the desorption port 12 of the adsorption module. A catalyst layer 16 and a heating device 15 are arranged in the catalytic combustion chamber 14, the catalyst layer 16 adopts a noble metal catalyst, and the heating device 15 is an electric heating tube. The carbon dioxide waste gas desorbed from the adsorption tank 8 enters the catalytic combustion chamber 14, reaches the light-off temperature of the catalyst under the heating of the heating device 15, and is decomposed into carbon dioxide and water by catalytic combustion under the action of the catalyst layer 16.

The exhaust pipe 18 of the exhaust module is connected with the air outlet 11 of the adsorption module and the air outlet 17 of the catalytic combustion module, and a second fan 19 and a monitoring device 20 are arranged on the exhaust pipe 18. The monitoring device 20 includes a concentration sensor and a temperature sensor for monitoring the carbon dioxide concentration and temperature in the exhaust gas in real time. The gas after the adsorption treatment and the catalytic combustion treatment is discharged to the atmosphere through the exhaust pipe 18 by 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 standards.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "top", "bottom", "one side", "the other side", "front", "rear", "middle", "inner", "top", "bottom", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and are not to be construed as limitations of the present utility model, but rather, indicate or imply that the devices or elements referred to must have specific directions, be constructed and operated in specific directions, and are not to be construed as limitations of the present utility model, and that the terms "first", "second", "third" are merely used for descriptive purposes and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly specified and limited, terms "mounted", "connected" are to be construed broadly, such as being either fixedly connected, detachably connected or integrally connected, being mechanically connected, being either directly connected or indirectly connected through intermediate mediums or communicating between the inside two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

It should be noted that the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited to the preferred embodiment, but may be modified or substituted for some of the technical features described in the foregoing embodiments by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (5)

1. The utility model provides a carbon dioxide organic waste gas treatment device, its characterized in that includes waste gas collection module, pretreatment module, adsorption module, catalytic combustion module, emission module, waste gas collection module includes gas collecting cover (1), gas collecting cover (1) top fixedly connected with intake pipe (2), be provided with first fan (3) on intake pipe (2), pretreatment module includes rose box (4) that are connected with intake pipe (2), the top is provided with coarse filtration screen (5) in rose box (4), the below is provided with middle-effect filter screen (6) in rose box (4), adsorption module includes parallelly connected trachea (7) that rose box (4) bottom is connected, parallelly connected trachea (7) dispersed end connection a plurality of adsorption tanks (8), the intussuseption of adsorption tank (8) is filled with active carbon adsorbent (9), adsorption tank (8) top is provided with air inlet (10), gas outlet (11) and desorption mouth (12), catalytic combustion module includes desorption trachea (13) that are connected on desorption mouth (12), desorption trachea (13) are connected with catalyst (14) bottom a plurality of catalyst (14) and are provided with in the combustion device (14) the top is provided with in catalytic combustion device (14), the top of the catalytic combustion chamber (14) is provided with an exhaust port (17), the exhaust module comprises an exhaust pipe (18) with an air outlet (11) connected with the exhaust port (17), a second fan (19) is arranged on the exhaust pipe (18), and a monitoring device (20) is arranged at the tail end of the exhaust pipe (18).

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

3. A carbon dioxide organic waste gas treatment device according to claim 1, characterized in that a plurality of the adsorption tanks (8) are arranged in parallel, and valves (21) are arranged at the gas inlet (10), the gas outlet (11) and the desorption port (12) of each adsorption tank (8).

4. A carbon dioxide organic waste gas treatment device according to claim 1, wherein the catalyst layer (16) is a noble metal catalyst and the heating means (15) is an electric heating tube.

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