Moving bed activated carbon waste gas adsorption device

Abstract

The utility model discloses a moving bed activated carbon waste gas adsorption device which comprises a main cabin shell of a dust remover, an air inlet is formed in one end of the main cabin shell, an air outlet is formed in the end, opposite to the air inlet, of the main cabin shell, an ash hopper is arranged at the bottom of the main cabin shell, and a star-shaped unloader is arranged at the bottom of the ash hopper. An activated carbon moving bed is fixedly installed on the inner side of the main cabin shell, an inner cavity of the main cabin shell is divided into an air inlet area corresponding to the air inlet and an air outlet area corresponding to the air outlet through the activated carbon moving bed, and smoke enters the main cabin shell through the air inlet. Under the action of airflow, flue gas and activated carbon particles in the activated carbon moving bed form covering type full contact, the activated carbon in the feeding hopper and the moving bed can slowly move from top to bottom under the action of self weight and vibration, and the effective contact of the activated carbon turned over through vibration to the flue gas is further increased; the dioxin in the gas can be effectively adsorbed and intercepted by the activated carbon particles, so that the aim of purifying the flue gas is fulfilled.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection equipment, in particular to a moving bed activated carbon adsorption waste gas device. Background Technique

[0002] With the progress of China's science and technology and the improvement of the utilization rate of resources and energy, the environmental protection requirements are getting higher and higher. Some of the original rubber, plastics, wood chips, waste oil cloth, etc. containing organic components can be used as solid waste for incineration or mixed with coal for combustion. The flue gas generated after combustion will contain dioxin harmful to the human body. In a common activated carbon adsorption system, powdered activated carbon is sprayed in front of the dust collector. After adsorbing dioxin in the flue gas, it is mixed with fly ash and collected by the dust collector; the disadvantages of this technology are as follows:

[0003] 1. Because the activated carbon powder is not evenly mixed in the flue gas, the adsorption effect is poor, and it cannot stably meet the environmental protection emission requirements.

[0004] 2. The activated carbon powder mixed in the fly ash cannot be separated, cannot be regenerated and reused, which increases the operating cost; and the fly ash collected contains activated carbon powder with harmful substance dioxin, which is also not conducive to the secondary utilization of fly ash.

[0005] 3. The system configuration is relatively complex, and the amount of maintenance and repair is large. Content of the Utility Model

[0006] The purpose of this part is to outline some aspects of the implementation mode of the utility model and briefly introduce some preferred implementation modes. Simplifications or omissions may be made in this part, as well as in the abstract of the specification and the title of the utility model of this application, to avoid obscuring the purpose of this part, the abstract of the specification and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the utility model.

[0007] Therefore, the purpose of the utility model is to provide a moving bed activated carbon adsorption waste gas device to solve the problems in the above-mentioned background technique that the existing method for eliminating dioxin by the dust collector has poor adsorption effect, the activated carbon powder cannot be separated, cannot be regenerated and reused, increases the operating cost, and the system configuration is relatively complex, and the amount of maintenance and repair is large.

[0008] To achieve the above object, the present utility model provides the following technical solutions: A moving bed activated carbon adsorption waste gas device, which includes the main cabin shell of a dust collector. One end of the main cabin shell has an air inlet, and the opposite end of the air inlet has an air outlet. The bottom of the main cabin shell has an ash hopper, and the bottom of the ash hopper has a star-shaped discharger. An activated carbon moving bed is fixedly installed inside the main cabin shell, and the inner cavity of the main cabin shell is divided into an air inlet area corresponding to the air inlet and an air outlet area corresponding to the air outlet by the activated carbon moving bed. The outer main body of the activated carbon moving bed is a filter shell. The filter shell has a vertical cavity inside, and activated carbon particles are filled in the cavity. The outer side wall of the filter shell has uniformly distributed sieve holes with a pore diameter smaller than the diameter of the activated carbon particles;

[0009] A feeding hopper is further provided at the top of the dust collector. By introducing new activated carbon particles into the feeding hopper, the activated carbon particles naturally fall into the filter shell from top to bottom;

[0010] Among them, the bottom of the filter shell is communicated with the ash hopper and the star-shaped discharger.

[0011] As a preferred scheme of the moving bed activated carbon adsorption waste gas device described in the present utility model, among them, the lower part of the activated carbon moving bed is fixed to the ring beam provided at the inner bottom of the main cabin shell. The perspective view of the filter shell is in a continuous "bow-shaped" structure, and the thickness of the activated carbon particles inside the filter shell is not less than 300 mm.

[0012] As a preferred scheme of the moving bed activated carbon adsorption waste gas device described in the present utility model, among them, the top of the main cabin shell also has an open installation opening, and the inner side and upper part of the installation opening are matched with a detachable maintenance cover.

[0013] As a preferred scheme of the moving bed activated carbon adsorption waste gas device described in the present utility model, among them, the bottom of the feeding hopper penetrates through the maintenance cover, and the top of the feeding hopper is also equipped with a cover plate.

[0014] As a preferred scheme of the moving bed activated carbon adsorption waste gas device described in the present utility model, among them, at least one vibration component is further provided on the outer side of the main cabin shell.

[0015] As a preferred scheme of the moving bed activated carbon adsorption waste gas device described in the present utility model, among them, a chassis is installed around the bottom of the main cabin shell. Support legs are vertically fixed at the four corners of the chassis, and the bottom of the support legs has fixed feet.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: Through the innovative and unique structural design, this mobile bed activated carbon waste gas adsorption device not only effectively ensures the adsorption efficiency of dioxins in flue gas, but also enables the activated carbon particles mixed in fly ash to be independently screened and separated. After collection, the activated carbon can be regenerated and reused, and the fly ash containing dioxins can also be reused for other purposes. It has multiple characteristics such as low construction cost, low operation and maintenance costs, and good purification efficiency, and is suitable for popularization and application. Brief Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the external structure of the device of the present utility model;

[0018] Figure 2 It is a schematic diagram of the activated carbon moving bed structure of the present utility model;

[0019] Figure 3 It is a schematic diagram of the top view operation effect of the activated carbon moving bed of the present utility model.

[0020] In the figure: 100, main cabin shell; 110, air inlet; 120, air outlet; 130, ash hopper; 140, star-shaped discharger; 150, installation opening; 160, inspection cover; 200, activated carbon moving bed; 210, filter shell; 211, sieve holes; 220, activated carbon particles; 300, feeding hopper; 310, cover plate; 400, vibrating component; 500, chassis; 510, support legs; 520, fixed feet. Detailed Embodiments

[0021] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe the detailed embodiments of the present utility model in conjunction with the accompanying drawings.

[0022] Secondly, the present utility model will be described in detail in combination with the schematic diagrams. When detailing the embodiments of the present utility model, for the convenience of description, the cross-sectional views showing the device structure will be enlarged locally in a non-general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0023] To make the purpose, technical solutions, and advantages of the present utility model clearer, the following will further describe the embodiments of the present utility model in detail in conjunction with the accompanying drawings.

[0024] Figures 1 - 3 Shown is a schematic diagram of the entire structure of a mobile bed activated carbon waste gas adsorption device of the present utility model. Please refer to Figures 1 - 3, A moving bed activated carbon adsorption waste gas device of this embodiment includes a main cabin shell 100 of a dust collector. One end of the main cabin shell 100 has an air inlet 110 and the opposite end of the air inlet 110 has an air outlet 120. The bottom of the main cabin shell 100 has an ash hopper 130, and the bottom of the ash hopper 130 has a star discharger 140. An activated carbon moving bed 200 is fixedly installed inside the main cabin shell 100, and the inner cavity of the main cabin shell 100 is divided into an air inlet area corresponding to the air inlet 110 and an air outlet area corresponding to the air outlet 120 by the activated carbon moving bed 200. The outer main body of the activated carbon moving bed 200 is a filter shell 210. The filter shell 210 has a vertical cavity inside, and activated carbon particles 220 are filled in the cavity. The outer side wall of the filter shell 210 has uniformly distributed sieve holes 211 with a pore diameter smaller than the diameter of the activated carbon particles 220; A feeding hopper 300 is also provided at the top of the dust collector. By introducing new activated carbon particles 220 into the feeding hopper 300, the activated carbon particles 220 naturally fall into the filter shell 210 from top to bottom; Among them, the bottom of the filter shell 210 communicates with the ash hopper 130 and the star discharger 140.

[0025] The lower part of the activated carbon moving bed 200 is fixed to the ring beam provided at the inner bottom of the main cabin shell 100. The front view angle of the filter shell 210 is in a continuous "bow-shaped" structure. The thickness of the activated carbon particles 220 inside the filter shell 210 is not less than 300 mm. It can be understood that the outer frame of the activated carbon moving bed 200, that is, the filter shell 210, can be made of 3 mm thick stainless steel plate and made into a multi-twisted shell and cavity structure by bending or combined welding. This is the core structure of the screening device of this waste gas device, which has the characteristics of simple structure configuration, easy maintenance and low cost. It should be noted that the opening rate of the filter shell 210 should meet the process flow rate of the flue gas passing through the activated carbon, and the diameter of the sieve holes 211 is larger than that of the activated carbon particles 220, which can prevent the particles from leaking through the orifice plate and overflowing, so that the activated carbon can only flow vertically and be continuously updated.

[0026] It can be understood that by designing the filter shell 210 as a continuous "bow-shaped" structure, the contact area between the incoming flue gas and the activated carbon particles 220 can be effectively increased and the treatment efficiency of the flue gas can be improved.

[0027] The top of the main cabin shell 100 also has an open installation port 150. The inner side and upper part of the installation port 150 are matched with a detachable inspection cover 160. By opening the inspection cover 160 and the installation port 150, it is convenient to disassemble and repair the activated carbon moving bed 200 inside the device. At the same time, the inspection cover 160 can also be used for positioning and installing the feeding hopper 300, which is simple and practical. The bottom of the feeding hopper 300 penetrates through the inspection cover 160, and a cover plate 310 is also provided at the top of the feeding hopper 300. During use, new activated carbon particles 220 can be placed into the feeding hopper 300. The capacity of the feeding hopper 300 can be freely set according to actual needs, and a sealing strip cover plate 310 is also provided at the upper end of the feeding hopper 300, so as to maintain the sealing performance of the feeding hopper 300 and avoid or reduce the air leakage rate during the operation of the main cabin shell 100.

[0028] In this embodiment, it can be understood that when the activated carbon particles 220 adsorbed with dioxin in the activated carbon moving bed need to be replaced, the electric star-shaped discharger 140 at the bottom of the ash hopper 130 starts to work. The activated carbon particles 220 in the moving bed fall from top to bottom into the ash hopper by their own gravity and are discharged through the star-shaped discharger 140. Of course, the vibration of the vibration component 400 can also be used to make the activated carbon particles 220 more smoothly discharged from the star-shaped discharger 140.

[0029] On the basis of the above embodiment, as a further optimization, here, at least one vibration component 400 is also provided on the outer side of the main cabin shell 100. The vibration component 400 can adopt a vibration motor, so that when screening and filtering the flue gas, the vibration component 400 can drive the device and the activated carbon moving bed 200 to form continuous micro-amplitude high-frequency vibrations. In this way, the activated carbon particles 220 flowing slowly from top to bottom will form an alternating inside and outside and continuous surface replacement of the particles themselves in the activated carbon moving bed 200, thereby effectively improving the adsorption effect of dioxin and the utilization rate of activated carbon.

[0030] Furthermore, a chassis 500 is installed around the bottom of the main cabin shell 100. Support legs 510 are vertically fixed at the four corners of the chassis 500, and fixed feet 520 are provided at the bottoms of the support legs 510. Through the cooperation of the support structure, the star-shaped discharger 140 has enough space from the ground for discharging operations.

[0031] In summary, for a moving bed activated carbon waste gas adsorption device according to this embodiment, during operation, the flue gas enters the main cabin shell 100 through the air inlet 110. Under the action of the air flow, the flue gas forms a covering and full contact with the activated carbon particles 220 in the activated carbon moving bed 200. The activated carbon in the feeding hopper 300 and the moving bed will slowly move downward under the action of its own weight and vibration. The vibration-turned activated carbon further increases the effective contact with the flue gas, enabling the dioxins in the gas to be effectively adsorbed and intercepted by the activated carbon particles 220, thereby achieving the purpose of flue gas purification. In this way, the activated carbon at the upper part of the activated carbon moving bed 200 can be kept as the latest. After being used for a period of time, the ineffective activated carbon moves to the lower part of the moving bed, and then the activated carbon particles and fly ash are discharged together through the unloader, and the purified flue gas is discharged from the air outlet 120. In summary, this moving bed activated carbon waste gas adsorption device not only effectively guarantees the adsorption efficiency of dioxins in the flue gas, but also the activated carbon particles mixed in the fly ash can be independently screened and separated, enabling the collected activated carbon to be regenerated and reused, and the fly ash containing dioxins can also be reused for other purposes, having multiple advantages such as low construction cost, low operation and maintenance cost, and good purification efficiency.

[0032] Although the present invention has been described above with reference to the embodiments, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed by the present invention can be combined with each other in any way. The exhaustive description of these combinations is not given in this specification only for the sake of saving space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A moving bed activated carbon waste gas adsorption device, characterized in that: The invention comprises a main cabin shell (100) of a dust collector, wherein one end of the main cabin shell (100) is provided with an air inlet (110) and the other end opposite to the air inlet (110) is provided with an air outlet (120), the bottom of the main cabin shell (100) is provided with an ash hopper (130), the bottom of the ash hopper (130) is provided with a star-shaped discharger (140), an activated carbon moving bed (200) is fixedly installed inside the main cabin shell (100), and the main cabin shell (100) is provided with an activated carbon moving bed (200). The inner cavity of the cabin shell (100) is divided into an air inlet area corresponding to the air inlet (110) and an air outlet area corresponding to the air outlet (120); the outer body of the activated carbon moving bed (200) is a filter shell (210); the filter shell (210) has a vertical cavity inside, and the cavity is filled with activated carbon particles (220); the outer wall of the filter shell (210) has sieve holes (211) that are evenly distributed and have a pore size smaller than the diameter of the activated carbon particles (220); A feeding hopper (300) is also provided at the top of the dust collector, and new activated carbon particles (220) are introduced into the feeding hopper (300), so that the activated carbon particles (220) naturally fall into the filter housing (210) from top to bottom; The bottom of the filter housing (210) is connected to the ash hopper (130) and the star-shaped discharger (140).

2. The moving bed activated carbon waste gas adsorption device according to claim 1, characterized in that: The lower part of the activated carbon moving bed (200) is fixed to a ring beam arranged at the inner bottom of the main cabin shell (100); the filter shell (210) presents a continuous "bow-shaped" structure from a top view; and the thickness of the activated carbon particles (220) inside the filter shell (210) is not less than 300 mm.

3. The moving bed activated carbon waste gas adsorption device according to claim 1, characterized in that: The top of the main compartment shell (100) also has an open installation opening (150), and the inner side and upper part of the installation opening (150) are matched with a detachable inspection cover (160).

4. The moving bed activated carbon waste gas adsorption device according to claim 1, characterized in that: The bottom of the feeding hopper (300) is connected to the inspection cover (160), and the top of the feeding hopper (300) is also provided with a cover plate (310).

5. The moving bed activated carbon waste gas adsorption device according to claim 1, characterized in that: At least one vibration component (400) is also arranged on the outside of the main compartment shell (100).

6. The moving bed activated carbon waste gas adsorption device according to claim 1, characterized in that: A base frame (500) is installed around the bottom of the main cabin shell (100), and supporting legs (510) are vertically fixed at the four corners of the base frame (500), and the bottom of the supporting legs (510) has a fixed foot (520).

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