Regeneration device for waste honeycomb activated carbon

Abstract

The present invention provides a regeneration and processing device for waste honeycomb activated carbon, comprising: a box body, a box door and a fixed plate are arranged on the box body, the fixed plate is arranged close to the fixed box surface away from the box door, and the upper and lower ends of the fixed plate are respectively provided with gaps between the upper and lower box surfaces of the box body; a circulating axial flow fan for promoting airflow circulation in the box; a heater for regulating the temperature inside the box body; the circulating axial flow fan and the heater are both arranged between the fixed plate and the fixed box surface; a plurality of honeycomb activated carbon placement layers, and the plurality of honeycomb activated carbon placement layers are arranged at intervals inside the box body for placing honeycomb activated carbon; a photocatalytic layer for decomposing organic gaseous pollutants such as VOC and odor; and a carbon cotton filter layer for intercepting dust raised by circulating wind on the surface of part of the honeycomb activated carbon, and the photocatalytic layer and the carbon cotton filter layer are both arranged above the honeycomb activated carbon bracket. The regeneration and processing device provided by the present invention has the advantages of high efficiency, low cost, safety and environmental protection.

Description

Technical Field

[0001] The invention relates to the technical field of energy regeneration processing, in particular to a regeneration processing device for waste honeycomb activated carbon. Background Art

[0002] Honeycomb activated carbon is a new type of environmentally friendly activated carbon waste gas purification product. Due to its high porosity and extremely high specific surface area, it can effectively reduce odors and pollutants, especially in the adsorption of VOCs. The biggest feature of honeycomb activated carbon is its good purification effect and small wind speed resistance. With increasingly stringent environmental protection requirements, honeycomb activated carbon will be more and more widely used, but honeycomb activated carbon has the problem of high cost. After one adsorption saturation, if it is not replaced in time, it will lose its purification effect; if it is not regenerated and directly discarded after adsorption saturation, the operating cost is too high. At the same time, discarded honeycomb activated carbon is also a hazardous waste. In the natural environment, it can also naturally analyze the adsorbed pollutants and pollute the environment; and the main recycling method on the market is to recycle, but this not only has the problem of high regeneration cost, but also the accelerated volatilization of adsorbed pollutants during the regeneration process cannot be avoided, presenting an unorganized emission state, which pollutes the environment greatly. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a regeneration and processing device for waste honeycomb activated carbon, so as to achieve efficient, low-cost, safe and environmentally friendly regeneration and utilization of waste honeycomb activated carbon.

[0004] To solve the above technical problems, an embodiment of the present invention provides a regeneration and processing device for waste honeycomb activated carbon, the regeneration and processing device for waste honeycomb activated carbon comprising: a box body, the box body is provided with a box door and a fixed plate, the fixed plate is arranged close to a fixed box surface away from the box door and is parallel to the plane where the box door is located, and a gap is left between the upper and lower ends of the fixed plate and the upper and lower box surfaces of the box body respectively; a circulating axial flow fan for promoting air circulation in the box; a heater for regulating the internal temperature of the box body; the circulating axial flow fan and the heater are both arranged between the fixed plate and the fixed box surface; a plurality of honeycomb activated carbon placement layers, the plurality of honeycomb activated carbon placement layers are arranged at intervals inside the box body for placing the honeycomb activated carbon; a photo-oxidation catalytic layer for decomposing organic gaseous pollutants such as VOC and odor; and a carbon cotton filter layer for intercepting dust raised by circulating wind on the surface of part of the honeycomb activated carbon, the photo-oxidation catalytic layer and the carbon cotton filter layer are both arranged above the honeycomb activated carbon bracket.

[0005] Optionally, the circulating axial flow fan is located above the heater.

[0006] Optionally, the plurality of honeycomb activated carbon placement layers include a plurality of honeycomb activated carbon brackets and a plurality of bracket support frames for supporting the plurality of honeycomb activated carbon brackets, and the honeycomb activated carbon brackets can slide relative to the bracket support frames.

[0007] Optionally, each of the honeycomb activated carbon brackets and each of the bracket support frames is constructed in a mesh shape.

[0008] Optionally, the photo-oxidation catalytic layer is located above the carbon wool filter layer.

[0009] Optionally, the carbon cotton filter layer uses 10-20 mm activated carbon fiber cotton.

[0010] Optionally, the photo-oxidation catalytic layer uses a vacuum ultraviolet lamp in the 184nm and 254nm bands.

[0011] Optionally, a control instrument and a display device are also provided outside the box.

[0012] Optionally, the control instrument includes a temperature controller, a time controller and a circulating axial flow fan controller.

[0013] Optionally, the internal temperature of the box is greater than 160°C.

[0014] The beneficial effects of the above technical solution of the present invention are as follows:

[0015] The regeneration and treatment device of the waste honeycomb activated carbon of the present invention is mainly composed of a box body, a circulating axial flow fan, a heater, a photocatalytic layer, and a honeycomb activated carbon bracket. During use, the waste honeycomb activated carbon that has been adsorbed saturated is placed on the honeycomb activated carbon bracket, and the circulating axial flow fan and the heater are started after the box door is closed. During the temperature rise in the box body, the gaseous pollutants adsorbed by the activated carbon are accelerated to volatilize, and then pass through the carbon cotton filter layer upward to intercept a small amount of activated carbon dust in the airflow, and then pass through the photocatalytic layer to achieve the digestion of some pollutants, and pass through the activated carbon layer from bottom to top again under the action of the circulating axial flow fan. The airflow realizes continuous circulation inside the box body, and each time it passes through the activated carbon layer, the gaseous pollutants are decomposed and purified once, and the airflow circulates continuously to achieve efficient purification and removal. Therefore, the regeneration and treatment device of the waste honeycomb activated carbon provided by the present invention has a simple structure, low energy consumption, good regeneration effect, and a waste honeycomb activated carbon regeneration device that is easy to operate and maintain, so as to achieve efficient, low-cost, safe and environmentally friendly regeneration of waste honeycomb activated carbon. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of the regeneration device for waste honeycomb activated carbon provided by the present invention.

[0017] [Explanation of Reference Numerals]

[0018] 1-box; 2-circulating axial flow fan; 3-heater; 4-photocatalytic layer; 5-carbon cotton filter layer; 6-honeycomb activated carbon placement layer. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0020] In the description of this application, it is to be understood that reference Figure 1 , the terms "upper" and "lower" are Figure 1 The terms "inside" and "outside" are relative to the outer contour of the box body in this application.

[0021] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] The present invention aims to solve the problems of low efficiency and high cost of existing waste honeycomb processing and provides a waste honeycomb activated carbon regeneration processing device. Figure 1 As shown, the regeneration and processing device for the waste honeycomb activated carbon comprises: a box body 1, on which a box door and a fixed plate 7 are arranged, the fixed plate 7 is arranged close to a fixed box surface away from the box door and parallel to the plane where the box door is located, and a gap is left between the upper and lower ends of the fixed plate 7 and the upper and lower box surfaces of the box body 1 respectively; a circulating axial flow fan 2 for promoting air circulation in the box; a heater 3 for regulating the internal temperature of the box body 1; the circulating axial flow fan 2 and the heater 3 are both arranged between the fixed plate 7 and the fixed box surface; a plurality of honeycomb activated carbon placement layers 6, wherein the plurality of honeycomb activated carbon placement layers 6 are arranged at intervals inside the box body 1 for placing the honeycomb activated carbon; a photo-oxidation catalytic layer 4 for decomposing organic gaseous pollutants such as VOC and odor; and a carbon cotton filter layer 5 for intercepting dust raised by circulating wind on the surface of part of the honeycomb activated carbon, and the photo-oxidation catalytic layer 4 and the carbon cotton filter layer 5 are both arranged above the honeycomb activated carbon bracket.

[0023] The regeneration and processing device of the waste honeycomb activated carbon of the present invention mainly consists of a box body 1, a circulating axial flow fan 2, a heater 3, a photocatalytic layer 4, and a honeycomb activated carbon bracket. Here, the circulating axial flow fan 2 can also be replaced by other types of fans, but they should all meet the working temperature requirement of more than 160°C. Under the control of the time control element set on the box body 1, intermittent operation at a set time interval is achieved.

[0024] During use, the saturated adsorption discarded honeycomb activated carbon is placed on the honeycomb activated carbon bracket, and the circulating axial flow fan 2 and the heater 3 are started after the box door is closed, and the temperature is controlled at about 160°C. During the temperature rise in the box body 1, the gaseous pollutants adsorbed by the activated carbon are accelerated to volatilize, and then pass through the carbon cotton filter layer 5 upward to intercept a small amount of activated carbon dust in the airflow, and then pass through the photocatalytic layer 4 to achieve the elimination of some pollutants, and pass through the activated carbon layer from bottom to top again under the action of the circulating axial flow fan 2. The airflow realizes continuous circulation inside the box body 1, and each time it passes through the activated carbon layer, the gaseous pollutants are decomposed and purified once, and the airflow circulates continuously to achieve efficient purification and removal. Therefore, the waste honeycomb activated carbon regeneration device provided by the present invention has a simple structure, low energy consumption, good regeneration effect, and is easy to operate and maintain. The waste honeycomb activated carbon regeneration device can realize efficient, low-cost, safe and environmentally friendly regeneration of waste honeycomb activated carbon.

[0025] Specifically, in terms of temperature control, when the temperature inside the box reaches the set temperature, heating is stopped under the control of the temperature measurement and temperature control element of the box body 1. When the temperature inside the box is lower than the set temperature due to heat transfer loss, heating is started automatically and operates intermittently. After the actual box body 1 adopts thermal insulation materials, the temperature loss is very small. Therefore, after the heater 3 heats the box body 1 to the set temperature for the first time, the subsequent startup time is extremely short, thereby achieving the purpose of energy saving.

[0026] In terms of airflow control, the higher the airflow velocity, the higher the activated carbon regeneration rate, and the higher the system circulation energy consumption. Therefore, the air volume of the circulating axial flow fan 2 should be calculated according to the cross-sectional area of ​​the box 1. It is best to keep the cross-sectional flow velocity below 1m / s to prevent the flow velocity from being too high and the honeycomb activated carbon from having too large flow resistance. Each time the circulating gas passes through the photocatalytic layer 4, the organic gaseous pollutants volatilized from the honeycomb activated carbon are decomposed and removed in a certain proportion, and the pollutants in the honeycomb activated carbon are continuously analyzed from the honeycomb activated carbon due to high temperature, and are gradually removed by participating in the airflow circulation. After each continuous circulation of about 1h, the fan is suspended for about 0.5h, so that the gaseous pollutants inside the deep micropores of the activated carbon can diffuse to the surface, which is also conducive to reducing the fan energy consumption, and then the circulating fan is started again; the start and pause of the circulating fan is controlled by the time control element on the box 1. In addition, the airflow circulation penetrates the honeycomb activated carbon layer from bottom to top, which can effectively prevent the honeycomb activated carbon debris from adhering to the ultraviolet lamp tube of the photocatalytic layer 4.

[0027] Optionally, in order to enable the airflow blown by the circulating axial flow fan 2 to blow the hot air from the heater 3 into the interior of the box 1, thereby ensuring uniform heat inside the box 1, the circulating axial flow fan 2 is located above the heater 3. In this way, the hot air blown out from the heater 3 flows into the side where the honeycomb activated carbon bracket is located through the gap between the lower end of the fixing plate 7 and the lower box surface of the box 1. At this time, the hot air flow rises, and the temperature above the box 1 gradually rises, thereby achieving temperature rise inside the entire box 1.

[0028] In addition, optionally, the plurality of honeycomb activated carbon placement layers 6 include a plurality of honeycomb activated carbon brackets and a plurality of bracket support frames for supporting the plurality of honeycomb activated carbon brackets, and the honeycomb activated carbon brackets can slide relative to the bracket support frames. In this way, when placing the honeycomb activated carbon, the operator can drag out a portion of the honeycomb activated carbon bracket, thereby facilitating the placement of the honeycomb activated carbon located on the inner side of the box body 1. It should be noted here that the present invention does not impose specific restrictions on the number of honeycomb activated carbon brackets and bracket support frames. Multiple bracket support frames and multiple honeycomb activated carbon brackets can be one-to-one corresponding, or one bracket support frame can support multiple honeycomb activated carbon brackets. Those skilled in the art can make specific arrangements in combination with the present invention and actual conditions.

[0029] In addition, in order to allow the hot air flow to pass through the honeycomb activated carbon bracket and the bracket support frame into the top of the box body 1, so that the inside of the box body 1 is evenly heated, each bracket support frame and the honeycomb activated carbon bracket are constructed in a mesh shape. In addition, each layer of honeycomb activated carbon bracket can hold one or more layers of honeycomb activated carbon. After the honeycomb activated carbon is loaded, the net distance between the upper surface of the uppermost layer of honeycomb activated carbon and the upper layer of bracket is maintained at more than 20 mm.

[0030] Optionally, the photocatalytic layer 4 is located above the carbon cotton filter layer 5. In this way, as the temperature in the box 1 rises, the gaseous pollutants adsorbed by the activated carbon are accelerated to volatilize, and then pass through the carbon cotton filter layer 5 upward, intercepting a small amount of activated carbon dust in the airflow, and then pass through the photocatalytic layer 4, thereby achieving the elimination of some pollutants.

[0031] Optionally, the carbon cotton filter layer 5 is made of 10-20 mm activated carbon fiber cotton and a lamp tube with a temperature resistance of more than 160° C.

[0032] Optionally, the photo-oxidation catalytic layer 4 uses a vacuum ultraviolet lamp in the wavelength band of 184nm and 254nm.

[0033] In addition, a control instrument and a display device are also provided outside the box 1. Optionally, the control instrument includes a temperature controller, a time controller and a circulating axial flow fan 2 controller.

[0034] In summary, according to the regeneration and processing device of waste honeycomb activated carbon in the embodiment of the present invention, during use, the waste honeycomb activated carbon to be regenerated is first neatly placed on the honeycomb tray. When the honeycomb activated carbon is placed, the gap between the honeycomb activated carbon is kept as small as possible; after closing the box door, the heater 3 and the circulating axial flow fan 2 are started to heat up and circulate the airflow in the box body 1. The airflow circulation method adopts from bottom to top through the honeycomb activated carbon layer. During the heating process, the organic gaseous pollutants adsorbed in the waste honeycomb activated carbon are gradually analyzed and enter the circulating air; during this heating process, when the temperature exceeds the set temperature, the heater 3 stops running, and only restarts when the temperature in the box is lower than a certain limit due to heat loss; in fact, because the box body 1 is made of thermal insulation material, and there is no airflow leakage during the regeneration process, the temperature loss is very small, thus achieving the purpose of energy saving.

[0035] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A regeneration device for waste honeycomb activated carbon, characterized in that: The regeneration and processing device for the waste honeycomb activated carbon comprises: A box body, wherein a box door and a fixing plate are arranged on the box body, wherein the fixing plate is arranged close to a fixing box surface away from the box door and parallel to the plane where the box door is located, and a gap is left between the upper and lower ends of the fixing plate and the upper and lower box surfaces of the box body respectively; Circulation axial flow fan, used to promote air circulation in the box; A heater, used to adjust the temperature inside the box; The circulating axial flow fan and the heater are both arranged between the fixed plate and the fixed box surface; A plurality of honeycomb activated carbon placement layers, wherein the plurality of honeycomb activated carbon placement layers are arranged at intervals inside the box body for placing the honeycomb activated carbon; A photocatalytic layer for degrading organic gaseous pollutants; and The carbon cotton filter layer is used to intercept dust raised by circulating wind on the surface of part of the honeycomb activated carbon. The photocatalytic layer and the carbon cotton filter layer are both arranged above the honeycomb activated carbon bracket, and the carbon cotton filter layer is located below the photocatalytic layer. Among them, during use, the discarded honeycomb activated carbon that has been saturated with adsorption is placed on the honeycomb activated carbon bracket, and the circulating axial flow fan and heater are started after the box door is closed. As the temperature in the box rises, the gaseous pollutants adsorbed by the activated carbon are accelerated to evaporate, and then pass through the carbon cotton filter layer upward to intercept a small amount of activated carbon dust in the airflow, and then pass through the photocatalytic layer; under the action of the circulating axial flow fan, it passes through the activated carbon layer from bottom to top again, and the airflow realizes continuous circulation inside the box; and the airflow circulates from bottom to top to penetrate the honeycomb activated carbon layer to prevent the honeycomb activated carbon debris from adhering to the ultraviolet lamp of the photocatalytic layer.

2. The regeneration treatment device for waste honeycomb activated carbon according to claim 1, characterized in that: The circulating axial flow fan is located above the heater.

3. The regeneration treatment device for waste honeycomb activated carbon according to claim 1, characterized in that: The plurality of honeycomb activated carbon placement layers include a plurality of honeycomb activated carbon brackets and a plurality of bracket support frames for supporting the plurality of honeycomb activated carbon brackets, and the honeycomb activated carbon brackets can slide relative to the bracket support frames.

4. The regeneration treatment device for waste honeycomb activated carbon according to claim 3, characterized in that: Each of the honeycomb activated carbon brackets and each of the bracket support frames is structured in a mesh shape.

5. The regeneration treatment device for waste honeycomb activated carbon according to claim 1, characterized in that: The carbon cotton filter layer adopts 10-20 mm activated carbon fiber cotton.

6. The regeneration treatment device for waste honeycomb activated carbon according to claim 1, characterized in that: The photo-oxidation catalytic layer uses vacuum ultraviolet lamps in the 184nm and 254nm bands.

7. The regeneration treatment device for waste honeycomb activated carbon according to claim 1, characterized in that: A control instrument and a display device are also arranged outside the box.

8. The regeneration treatment device for waste honeycomb activated carbon according to claim 7, characterized in that: The control instruments include a temperature controller, a time controller and a circulating axial flow fan controller.

9. The regeneration treatment device for waste honeycomb activated carbon according to claim 1, characterized in that: The internal temperature of the box is greater than 160°C.

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