Distributing system of activated carbon adsorption tower

Abstract

The utility model provides a material distribution system of an activated carbon adsorption tower, which relates to the technical field of adsorption towers and aims to solve the problem that the adsorption tower in the prior art is high in height, the material distribution system of the activated carbon adsorption tower comprises a filler tank, a material distribution tank and an adsorption tower, the filler tank is connected with the material distribution tank through a first connecting pipe, and the material distribution tank is connected with the adsorption tower through a second connecting pipe. The material distribution tank is connected with the adsorption tower through a material distribution elephant trunk, a plurality of modules are arranged in the adsorption tower, and the material distribution elephant trunk extends into the plurality of modules of the adsorption tower and provides activated carbon required by adsorption reaction for the plurality of modules. According to the distribution system of the activated carbon adsorption tower, the height of the whole adsorption tower is greatly reduced, and the investment cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of adsorption towers, in particular to an activated carbon adsorption tower material distribution system. Background Art

[0002] As the problem of waste gas emissions becomes increasingly serious, how to effectively treat waste gas has become an important issue in environmental protection. Existing organic waste gas treatment technologies include adsorption, oxidation, catalytic combustion and other methods. Among them, activated carbon adsorption technology has become a technology widely used in organic waste gas treatment. It has a high specific surface area and porosity and can effectively adsorb organic matter in waste gas.

[0003] Traditional countercurrent activated carbon adsorption tower modules usually use the cloth layer at the top of each module for distribution. Fresh activated carbon or regenerated activated carbon first enters the packing tank at the top of the adsorption tower, and then passes through the chute at the outlet of the packing tank to the cloth layer of each module for distribution, so as to store and supply activated carbon to the module. Ensure that the adsorption bed in the module is always full of material to achieve the removal effect of pollutant gases in the flue gas.

[0004] The traditional activated carbon desulfurization and denitrification system distribution process is as follows Figure 1 As shown. The process flow is described as follows: the regenerated activated carbon enters the chain bucket conveyor, is transported to the top of the adsorption tower, and re-enters the adsorption tower for adsorption. The activated carbon discharged from the chain bucket conveyor first enters the stuffing tank 1. The function of the stuffing tank is to prevent the flue gas in the adsorption tower from leaking into the chain bucket conveyor. The activated carbon coming out of the stuffing tank outlet enters each module of the adsorption tower through the cloth chute 7. A cloth layer 21 is set on the top of each module. The function of the cloth layer is to store activated carbon and supply the adsorption bed layer 4 of each module. Figure 1 Taking module 1 as an example, the original flue gas to be treated enters module 1, first enters the module's flue gas inlet section 5, then enters the adsorption bed 4 from bottom to top, and after removing pollutants, enters the flue gas outlet section 3, and then is discharged into the clean chimney through the external flue to the atmosphere. When the chain bucket conveyor unloads to the inlet of the filling tank, the filling tank outlet valve 8 is closed and the filling tank inlet valve 6 is opened; when the filling tank distributes to each module of the adsorption tower, the filling tank inlet valve 6 is closed and the filling tank outlet valve 8 is opened.

[0005] However, this method of distributing materials has certain disadvantages: a special distributing layer is set above each module, which will increase the height of the module. If multiple modules are stacked together to form an adsorption tower, the height of the adsorption tower will be greatly increased, and the weight of the equipment body and the corresponding steel structure will increase, resulting in high investment costs. In addition, the initial amount of activated carbon in the system will be relatively large, and the one-time investment cost will increase. Utility Model Content

[0006] The utility model aims to provide an activated carbon adsorption tower material distribution system to solve the problem of high adsorption tower height in the prior art. The activated carbon adsorption tower material distribution system of the utility model greatly reduces the height of the entire adsorption tower and reduces investment costs.

[0007] The utility model provides an activated carbon adsorption tower distribution system, comprising a filling tank, a distribution tank and an adsorption tower, wherein the filling tank is connected to the distribution tank via a first connecting pipe, the distribution tank is connected to the adsorption tower via a distribution chute, a plurality of modules are arranged in the adsorption tower, the distribution chute extends into the plurality of modules of the adsorption tower and provides the plurality of modules with activated carbon required for adsorption reaction.

[0008] As a preferred solution of the utility model, a stuffing tank inlet valve is arranged on the inlet pipe of the stuffing tank, and a stuffing tank outlet valve is arranged on the first connecting pipe.

[0009] As a preferred solution of the utility model, the module includes a simple cloth layer, a smoke outlet section, an adsorption bed layer and a smoke inlet section, and the simple cloth layer, smoke outlet section, adsorption bed layer and smoke inlet section are arranged in sequence from top to bottom.

[0010] As a preferred solution of the utility model, a plurality of the modules are arranged vertically in the adsorption tower, and the material distribution chute is extended downward from the top of the adsorption tower and is connected to the simple material distribution layer in each module.

[0011] As a preferred solution of the utility model, at least two distribution chutes are provided, and the two distribution chutes extend into the simple distribution layer of the adsorption tower from different directions respectively.

[0012] As a preferred solution of the utility model, the material distribution tank is arranged above the adsorption tower.

[0013] As a preferred solution of the present invention, the filling tank is arranged above the material distribution tank.

[0014] As a preferred solution of the present invention, the lengths of the plurality of material distribution chutes are equal.

[0015] Compared with the prior art, the utility model has the following positive effects:

[0016] The activated carbon adsorption tower distribution system provided by the utility model includes a filling tank, a distribution tank and an adsorption tower, wherein the filling tank is connected to the distribution tank through a first connecting pipe, and the distribution tank is connected to the adsorption tower through a distribution chute, and a plurality of modules are arranged in the adsorption tower, and the distribution chute extends into the plurality of modules of the adsorption tower and provides the plurality of modules with the activated carbon required for the adsorption reaction. In the present application, a distribution tank is arranged between the filling tank and the adsorption tower, and the activated carbon required in the adsorption tower is stored through the distribution tank. Therefore, only a simple distribution layer is required for the distribution area in each module, and only the activated carbon required for the distribution of the corresponding module is provided without storing excessive activated carbon, thereby reducing the height of the distribution space in each module, greatly reducing the height of the entire adsorption tower, and reducing the investment cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of an existing activated carbon adsorption tower cloth system;

[0019] Figure 2 It is a structural schematic diagram of the activated carbon adsorption tower cloth system of the utility model.

[0020] In the figure: 1. stuffing tank; 21. cloth layer; 22. simple cloth layer; 3. flue gas outlet section; 4. adsorption bed layer; 5. flue gas inlet section; 6. stuffing tank inlet valve; 7. stuffing tank outlet valve; 8. cloth chute; 9. stuffing tank. DETAILED DESCRIPTION

[0021] In the description of the present utility model, it should be noted that, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "front end", "back end", "head", "tail" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplification, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0023] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0024] This embodiment provides an activated carbon adsorption tower cloth system, such as Figure 2 As shown, it includes a filling tank 1, a distribution tank 9 and an adsorption tower. The filling tank 1 is connected to the distribution tank 9 through a first connecting pipe. The distribution tank 9 is connected to the adsorption tower through a distribution chute 8. The regenerated activated carbon enters the chain bucket conveyor, and the activated carbon is transported to the filling tank 1 through the chain bucket conveyor. The function of the filling tank is to pre-store the activated carbon and feed the distribution tank 9 to prevent the flue gas in the adsorption tower from leaking into the chain bucket conveyor. The activated carbon coming out of the outlet of the filling tank 1 enters the distribution tank 9 below. The function of the distribution tank 9 is to store the activated carbon and feed the modules of each layer.

[0025] The adsorption tower is provided with multiple modules, and the distribution chute 8 extends into the multiple modules of the adsorption tower and provides the multiple modules with the activated carbon required for the adsorption reaction. The activated carbon coming out from the bottom of the distribution tank 9 enters each module in the adsorption tower through the distribution chute 8 to provide each module with the activated carbon required for the reaction.

[0026] The original flue gas enters multiple modules through multiple pipelines and becomes clean flue gas after being adsorbed by activated carbon and then flows out of each module, thereby achieving the purpose of adsorbing and purifying the flue gas by multiple modules at the same time, increasing the flue gas purification volume and improving the purification efficiency.

[0027] The function of the cloth layer of each module in the existing adsorption tower is to store activated carbon and feed the adsorption bed 4 in the corresponding module. Therefore, the cloth layer stores more activated carbon, resulting in a higher height of the cloth layer. The height of each module increases, so the height of the adsorption tower composed of multiple modules stacked together increases greatly, thereby increasing the cost. In this embodiment, a cloth tank is set between the filling tank 1 and the adsorption tower, and the activated carbon required in the adsorption tower is stored in the cloth tank. Therefore, the cloth area in each module only needs to set a simple cloth layer, which only provides the activated carbon required for the cloth of the corresponding module, without storing excessive activated carbon, thereby reducing the height of the cloth space in each module, greatly reducing the height of the entire adsorption tower, and reducing investment costs.

[0028] As a preferred embodiment, a filling tank inlet valve 6 is provided on the inlet pipe of the filling tank 1, and the filling tank inlet valve 6 controls the switch state of the inlet pipe of the filling tank 1. A filling tank outlet valve 7 is provided on the first connecting pipe, and the filling tank outlet valve 7 controls the connection state between the filling tank 1 and the material distribution tank 9. Preferably, the filling tank inlet valve 6 and the filling tank outlet valve 7 are connected to the controller, and their switch states are controlled by the controller. In addition, the filling tank inlet valve 6 and the filling tank outlet valve 7 can also be manually controlled valves.

[0029] When the chain bucket conveyor discharges material to the upper filling tank 1, the filling tank outlet valve 7 is closed first, and then the filling tank inlet valve 6 is opened. When the upper filling tank 1 is not in the process of loading, the filling tank inlet valve 6 is closed, and there is no high material level in the distribution tank 9 and no low material level in the upper filling tank 1, the filling tank outlet valve 7 is opened to allow the filling tank 1 to feed the distribution tank 9. In this process, it can be ensured that the flue gas in the adsorption tower will not leak into the chain bucket conveyor at the top, avoiding corrosion to the chain bucket conveyor.

[0030] As a preferred embodiment, the module includes a simple cloth layer 22, a flue gas outlet section 3, an adsorption bed 4 and a flue gas inlet section 5. The simple cloth layer 22, the flue gas outlet section 3, the adsorption bed 4 and the flue gas inlet section 5 are arranged in sequence from top to bottom. The original flue gas enters the module from the flue gas inlet section 5 through a pipeline, and the flue gas moves upward through the adsorption bed 4 to become clean flue gas, and then flows out of the adsorption tower from the flue gas outlet section 3, and then is discharged into the clean chimney through an external flue and discharged into the atmosphere, thereby adsorbing pollutants in the flue gas and purifying the flue gas. The simple cloth layer 22 can provide the activated carbon required for the adsorption reaction to the adsorption bed 4 through the flue gas outlet section 3. The adsorption bed 4 can be a desulfurization or denitrification bed.

[0031] The effective height of the cloth layer of the existing adsorption tower is 1.5-2m, and the height of the improved simple cloth layer 22 in this embodiment is 0.2~0.5m. Therefore, compared with the existing cloth layer, the height of the simple cloth layer 22 in this embodiment is lower, which reduces the height of each module, thereby greatly reducing the height of the entire adsorption tower.

[0032] Preferably, no control valve is provided on the distribution chute 8 between the distribution tank 9 and the suction tower, so that the distribution chute 8 provides sufficient activated carbon to the simple distribution layer 22 of each module, so that the activated carbon fills the simple distribution layer 22.

[0033] As a preferred embodiment, multiple modules are arranged vertically in the adsorption tower to save horizontal occupied area. The distribution chute 8 extends downward from the top of the adsorption tower and is connected to the simple distribution layer 22 in each module. The activated carbon in the distribution chute 8 is naturally fed into the simple distribution layer 22 of each module under the action of gravity until the simple distribution layer 22 is filled.

[0034] As a preferred embodiment, the distribution tank 9 is arranged above the adsorption tower, and the adsorbent in the distribution tank 9 enters the distribution chute 8 by gravity, and the activated carbon is automatically transported to the simple distribution layer in multiple modules through the distribution chute 8. The distribution tank 9 is arranged just above the adsorption tower, and the bottom end of the distribution tank 9 is connected to the distribution chute 8. The lengths of the multiple distribution chute 8 are equal, so that when the distribution tank 9 feeds the simple distribution layer of the adsorption tower, the activated carbon is added at the same speed at different positions of the same simple distribution layer, so that the height of the activated carbon in the simple distribution layer is more uniform.

[0035] As a preferred embodiment, the filling tank 1 is arranged above the distribution tank 9, and the first connecting pipe connects the bottom end of the filling tank 1 and the top end of the distribution tank 9. When the filling tank outlet valve 7 is opened, the adsorbent in the filling tank 1 automatically drops into the distribution tank 9 under the action of gravity. The filling tank 1 can be arranged directly above the distribution tank 9 to reduce the length of the first connecting pipe, reduce costs and transportation. The filling tank 1 and the distribution tank 9 can be spherical, conical, etc., so that the bottom straight down is continuously reduced to allow the material in the tank to flow out fully.

[0036] In addition, the filling tank 1 and the distribution tank 9 can also be arranged at the same height, and the activated carbon can be transported from the filling tank 1 to the distribution tank 9 by a conveying device.

[0037] As a preferred embodiment, at least two distribution chutes 8 are provided, and the two distribution chutes 8 extend into the simple distribution layer 22 of the adsorption tower from different directions. Preferably, multiple distribution chutes 8 are evenly distributed in the same simple distribution layer 22.

[0038] In this embodiment, multiple distribution chutes 8 are provided so that the multiple distribution chutes 8 extend into different positions of the same simple distribution layer 22, thereby realizing multi-point feeding, improving the feeding rate, and making the height of activated carbon in the simple distribution layer 22 more balanced.

[0039] The above is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make several modifications and improvements without departing from the creative concept of the present invention, which should be included in the protection scope of the present invention.

Claims

1. An activated carbon adsorption tower material distribution system, characterized in that: The invention comprises a filling tank (1), a distribution tank (9) and an adsorption tower, wherein the filling tank (1) is connected to the distribution tank (9) via a first connecting pipe, the distribution tank (9) is connected to the adsorption tower via a distribution chute (8), a plurality of modules are arranged in the adsorption tower, and the distribution chute (8) extends into the plurality of modules of the adsorption tower and provides the plurality of modules with activated carbon required for adsorption reaction.

2. The activated carbon adsorption tower material distribution system according to claim 1, characterized in that: A stuffing tank inlet valve (6) is arranged on the inlet pipe of the stuffing tank (1), and a stuffing tank outlet valve (7) is arranged on the first connecting pipe.

3. The activated carbon adsorption tower material distribution system according to claim 1, characterized in that: The module comprises a simple cloth layer (22), a smoke outlet section (3), an adsorption bed layer (4) and a smoke inlet section (5), wherein the simple cloth layer (22), the smoke outlet section (3), the adsorption bed layer (4) and the smoke inlet section (5) are arranged in sequence from top to bottom.

4. The activated carbon adsorption tower material distribution system according to claim 1, characterized in that: A plurality of the modules are arranged vertically in the adsorption tower, and the material distribution chute (8) extends downward from the top of the adsorption tower and is in communication with the simple material distribution layer (22) in each module.

5. The activated carbon adsorption tower material distribution system according to claim 1, characterized in that: At least two distribution chutes (8) are provided, and the two distribution chutes (8) extend into the simple distribution layer (22) of the adsorption tower from different directions respectively.

6. The activated carbon adsorption tower material distribution system according to claim 1, characterized in that: The material distribution tank (9) is arranged above the adsorption tower.

7. The activated carbon adsorption tower material distribution system according to claim 1, characterized in that: The filling tank (1) is arranged above the material distribution tank (9).

8. The activated carbon adsorption tower material distribution system according to claim 5, characterized in that: The lengths of the plurality of material distribution chutes (8) are equal.

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