Tail gas treatment device for chemical engineering

Abstract

The utility model discloses a tail gas treatment device for chemical engineering, which comprises a plurality of reaction modules, and each reaction module comprises a cabinet, at least one grid support plate, a filler layer and a spraying mechanism; the tail gas treatment device for chemical engineering consists of a plurality of reaction modules, and the reaction modules can be respectively transported to a site to be assembled, so that the transportation pressure is reduced; a grid supporting plate and a filler layer in the reaction module can be replaced, so that different types of chemical tail gas can be conveniently treated; the number of the reaction modules can be increased and decreased according to needs so as to cope with chemical tail gas with different concentrations / quantities.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical tail gas treatment technical field especially relates to a tail gas treatment device for chemical engineering. BACKGROUND

[0002] Chemical tail gas (or chemical waste gas) cannot be directly discharged, and must be purified through a series of treatment to meet the gas emission requirements; the current chemical tail gas treatment system generally uses a spray type reaction tower, a packing layer is arranged in the reaction tower, and a catalyst for reacting with the chemical tail gas is arranged in the packing layer, in addition, a plurality of spray heads are arranged in the reaction tower, and the spray heads spray the spray liquid, and the spray liquid reacts with the chemical tail gas to achieve purification; however, the existing reaction tower is generally a large metal tower body, which is difficult to transport to the site after prefabrication in the factory; and the reaction tower is generally prefabricated in the factory according to the design requirement, and when different types of chemical tail gas or different concentrations / different amounts of chemical tail gas need to be treated in the later period, the reaction tower needs to be redesigned and manufactured, which is relatively inconvenient. SUMMARY

[0003] Therefore, the utility model provides a tail gas treatment device for chemical engineering, which aims to solve the problem of inconvenient transportation and flexible conversion of the existing reaction tower.

[0004] The scheme provided by the utility model comprises:

[0005] A tail gas treatment device for chemical engineering comprises a plurality of reaction modules, and the reaction module comprises:

[0006] A cabinet is provided with a reaction cavity, a gas outlet is arranged at the top of the cabinet, an air inlet is arranged below the gas outlet on the cabinet, and an air passage is formed between the air inlet and the gas outlet;

[0007] At least one grid support plate is detachably arranged in the reaction cavity, and the grid support plate is arranged on the air passage between the air inlet and the gas outlet;

[0008] A packing layer is arranged on the grid support plate;

[0009] A spraying mechanism comprises a plurality of spray heads arranged in the reaction cavity;

[0010] The plurality of reaction modules are connected in sequence, and the gas outlet of one reaction module is connected to the air inlet of another reaction module through a transition pipe.

[0011] As a further optional scheme, the inner wall of the cabinet is fixedly provided with a support, and the grid support plate is arranged on the support.

[0012] As a further optional solution, the support is a metal frame, which is welded to the inner wall of the cabinet.

[0013] As a further optional solution, one side of the cabinet is provided with a cabinet door.

[0014] As a further optional solution, the spraying mechanism comprises a liquid inlet pipe, a liquid outlet pipe, a liquid supply tank and a pump, one end of the liquid inlet pipe penetrates through the top of the cabinet and is connected with the spray head, and the other end is connected with the liquid supply tank; the pump is connected with the liquid inlet pipe; one end of the liquid outlet pipe is connected with the bottom of the cabinet, and the connection position of the liquid outlet pipe with the cabinet is lower than the setting position of the air inlet.

[0015] As a further optional solution, a plurality of reaction modules share the liquid supply tank.

[0016] As a further optional solution, a plurality of moving wheels are arranged at the bottom of the cabinet.

[0017] Compared with the prior art, the tail gas treatment device for chemical engineering has at least the following beneficial effects:

[0018] The tail gas treatment device for chemical engineering is composed of a plurality of reaction modules, which can be transported to the site for assembly, thereby reducing the transportation pressure; the grid support plate and the filler layer in the reaction module can be replaced, thereby facilitating the response to different types of chemical tail gas; the number of reaction modules can be increased or decreased as needed, so as to respond to chemical tail gas of different concentrations / different amounts. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic view of a tail gas treatment device for chemical engineering according to the present application;

[0020] Figure 2 is a structural schematic view of a tail gas treatment device for chemical engineering according to the present application;

[0021] Figure 3 is a structural schematic view of a reaction module;

[0022] Figure 4 is a structural schematic view of a reaction module;

[0023] Figure 5 is a structural schematic view of a grid support plate and a support.

[0024] In the figure: 1, reaction module; 11, cabinet; 111, reaction cavity; 112, gas outlet; 113, gas inlet; 114, cabinet door; 115, moving wheel; 12, grid support plate; 13, filler layer; 14, spraying mechanism; 141, spray head; 142, liquid inlet pipe; 143, liquid outlet pipe; 144, pump; 15, support; 2, transition pipe. DETAILED DESCRIPTION

[0025] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0026] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0027] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or it can only mean that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or it can only mean that the horizontal height of the first feature is less than that of the second feature.

[0029] REFERENCE Figures 1-5The utility model discloses an embodiment shows a kind of tail gas treatment device for chemical engineering, it includes multiple reaction module 1, the reaction module 1 includes cabinet 11, at least one grid support plate 12, filler layer 13 and spraying mechanism 14, the reaction cavity 111 is equipped in the cabinet 11, the top of the cabinet 11 is equipped with gas outlet 112, the cabinet 11 is also equipped with the air inlet 113 below the gas outlet 112, the air inlet 113 and gas outlet 112 form ventilation path between it;The grid support plate 12 is detachably arranged in the reaction cavity 111, and the grid support plate 12 is located on the ventilation path between the air inlet 113 and gas outlet 112;The filler layer 13 is arranged on the grid support plate 12;The spraying mechanism 14 includes multiple spray heads 141 arranged in the reaction cavity 111;Wherein, multiple reaction module 1 is connected in sequence, and the gas outlet 112 of a reaction module 1 is connected with the air inlet 113 of another reaction module 1 by transition pipe 2.

[0030] Specifically, chemical tail gas enters the reaction cavity 111 of cabinet 11 from air inlet 113, and chemical tail gas rises and passes through grid support plate 12 and filler layer 13, chemical tail gas reacts with catalyst in filler layer 13, while, spray head 141 outputs spray liquid, and spray liquid reacts with chemical tail gas, so as to realize purification treatment to chemical tail gas;Chemical tail gas finally leaves from the gas outlet 112 at the top of cabinet 11, and enters another reaction module 1 along filter pipe, and continues to carry out purification treatment.

[0031] Wherein, the tail gas treatment device for chemical engineering is composed of multiple reaction module 1, and reaction module 1 can be transported to the scene for assembly respectively, so as to reduce transportation pressure;The grid support plate 12 and filler layer 13 in reaction module 1 can be replaced, so as to facilitate to cope with different types of chemical tail gas;The number of reaction module 1 can be increased or reduced according to needs, so as to cope with chemical tail gas of different concentrations / different amounts.

[0032] Specifically, filler layer 13 can be composed of multiple PP polypropylene filler balls, and catalyst is located in filler ball;Filler layer 13 can be a carrier with honeycomb ceramic, and catalyst is loaded on honeycomb ceramic;Filler layer 13 can also adopt other conventional structures;Wherein, the type of catalyst is determined according to the type of chemical tail gas to be treated.

[0033] It should be noted that the filler layer 13 in multiple reaction module 1 can be different or same, and different reaction module 1 can have different number of filler layer 13, and this is not limited.

[0034] In some embodiments, for the convenience of replacing filler layer 13, such as Figure 4 And Figure 5As shown, a support member 15 is fixedly installed on the inner wall of the cabinet 11, and the grille support plate 12 is mounted on the support member 15. The support member is a metal component and can be fixed inside the cabinet 11 by bolts, welding, or clips. In this embodiment, the support member 15 is a metal frame welded to the inner wall of the cabinet 11. When the filler layer 13 needs to be replaced, the filler layer 13 and the grille support plate 12 can be removed.

[0035] In addition, when a reaction module 1 is manufactured, multiple support members 15 can be pre-installed inside the cabinet 11, and then appropriate number and types of grid support plates 12 and filler layers 13 can be placed in as needed.

[0036] In some embodiments, to facilitate replacement of the packing layer 13, such as Figure 1 As shown, the cabinet 11 has a cabinet door 114 on one side.

[0037] In some embodiments, such as Figure 3 and Figure 4 As shown, the spray mechanism 14 includes an inlet pipe 142, an outlet pipe 143, a supply tank (not shown), and a pump 144. One end of the inlet pipe 142 passes through the top of the cabinet 11 and is connected to the nozzle 141, while the other end is connected to the supply tank. The pump 144 is connected to the inlet pipe 142. One end of the outlet pipe 143 is connected to the bottom of the cabinet 11, and the connection position of the outlet pipe 143 to the cabinet 11 is lower than the setting position of the air inlet 113. In this way, the spray liquid output by the nozzle 141 can leave through the outlet pipe 143.

[0038] Preferably, for the sake of a simplified structure, multiple reaction modules 1 can share a single liquid supply tank.

[0039] In some embodiments, to facilitate the transfer of reaction module 1, such as Figure 3 As shown, the bottom of the cabinet 11 is provided with multiple casters 115; preferably, the casters 115 have a self-locking function. When the position of the reaction module 1 is determined, the casters 115 can be locked to prevent the cabinet 11 from moving, thus ensuring that the position of the reaction module 1 is stable when performing chemical exhaust gas purification treatment.

[0040] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0041] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A tail gas treatment device for chemical engineering, characterized by, It comprises a plurality of reaction modules, the reaction module comprises: A cabinet, a reaction cavity is arranged in the cabinet, an air outlet is arranged on the top of the cabinet, an air inlet is arranged below the air outlet on the cabinet, and an air passage is formed between the air inlet and the air outlet; At least one grid support plate is arranged in the reaction cavity and located on the air passage between the air inlet and the air outlet; A filler layer is arranged on the grid support plate; A spraying mechanism comprising a plurality of spray heads arranged in the reaction cavity; Wherein, a plurality of reaction modules are connected in sequence, the air outlet of one reaction module is connected with the air inlet of another reaction module through a transition pipe.

2. The tail gas treatment device for chemical engineering according to claim 1, characterized in that, The inner wall of the cabinet is fixedly provided with a support, and the grid support plate is arranged on the support.

3. The tail gas treatment device for chemical engineering according to claim 2, characterized in that, The support is a metal frame, and the metal frame is welded to the inner wall of the cabinet.

4. The tail gas treatment device for chemical engineering according to claim 1, characterized in that, One side of the cabinet is provided with a cabinet door.

5. The tail gas treatment device for chemical engineering according to claim 1, characterized in that, The spraying mechanism comprises a liquid inlet pipe, a liquid outlet pipe, a liquid supply tank and a pump, one end of the liquid inlet pipe penetrates through the top of the cabinet and is connected with the spray head, the other end is connected with the liquid supply tank, the pump is connected with the liquid inlet pipe, one end of the liquid outlet pipe is connected with the bottom of the cabinet, and the connection position of the liquid outlet pipe with the cabinet is lower than the arrangement position of the air inlet.

6. The tail gas treatment device for chemical engineering according to claim 5, characterized in that, Multiple reaction modules share one liquid supply tank.

7. The tail gas treatment device for chemical engineering according to claim 1, characterized in that, Multiple moving wheels are arranged on the bottom of the cabinet.

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