A recycling machine carbon bed adsorption automatic control device

Abstract

The utility model discloses an automatic control device for recycling machine carbon bed adsorption, which relates to the technical field of automatic control of machine carbon bed adsorption, and comprises a tank body; the interior of the tank body is arranged in a sandwich; an exhaust gas inlet is fixedly installed at one end of the tank body; a desorption discharge port, an adsorption discharge port, a steam pipe, a fire-fighting pipe and an activated carbon delivery pipe are arranged on the top of the tank body; a VOC sensor is installed on the adsorption discharge port to effectively adsorb the exhaust gas through the activated carbon, and when adsorption is performed, a VOC sensor is arranged on the adsorption discharge port on the top of the tank body, and the VOC content in the tail gas after the recycled gas passes through the activated carbon is measured by the VOC sensor, so as to effectively ensure the exhaust gas adsorption effect; when the VOC detected by the VOC sensor is greater than the set value, the adsorption is stopped, and when the desorption process is completed, the gas content is detected again by the VOC sensor, so as to effectively realize the automatic cycle adsorption effect and greatly improve the work efficiency.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of automatic control of carbon bed adsorption, in particular to an automatic control device for recycling carbon bed adsorption. Background Art

[0002] Recycling activated carbon bed adsorption is a common environmental protection and treatment technology. Activated carbon has a developed pore structure and a huge specific surface area, which can effectively adsorb various gaseous or liquid pollutants. In some industrial production processes, the gas or liquid containing pollutants flows through the activated carbon bed, and the pollutants are adsorbed on the activated carbon, thereby achieving the removal and purification of the pollutants;

[0003] As we all know, activated carbon has a certain ability to adsorb VOCs. When activated carbon reaches saturation, it can no longer absorb and needs to be desorbed before it can be absorbed again, and this cycle continues. In the past, the adsorption process was controlled by time, so it is possible that the time is too long and excess VOCs cannot be adsorbed, which will cause VOCs to be discharged into the atmosphere and pollute the environment, and the recovery rate is low. If the time is too short, the activated carbon adsorption is not sufficient and the utilization rate of the activated carbon is low.

[0004] In view of the above situation, we provide a recycling machine carbon bed adsorption automatic control device. In this device, by installing a VOC sensor for online monitoring of VOC at the adsorption exhaust port of the tank body and modifying the PLC program, the activated carbon can measure the VOC content in the tail gas after the recycled gas passes through the activated carbon during adsorption. When the content exceeds the normal value, the adsorption is stopped and the activated carbon is allowed to desorb. When the desorption is completed, the activated carbon can be allowed to adsorb again, and the cycle continues. Utility Model Content

[0005] The purpose of the utility model is to provide an automatic control device for carbon bed adsorption of a recycling machine, by installing a VOC sensor for online monitoring of VOC at the adsorption exhaust port of the activated carbon tank and modifying the PLC program, so that when the activated carbon is adsorbing, by measuring the VOC content in the tail gas after the recycled gas passes through the activated carbon, when the content exceeds the normal value, the adsorption is stopped and the activated carbon is allowed to desorb. After the desorption is completed, the activated carbon can be allowed to adsorb again, realizing cyclic adsorption and desorption, greatly improving the work efficiency, and solving the problems of the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A recycling machine carbon bed adsorption automatic control device, comprising a tank body; a waste gas inlet is fixedly installed at one end of the tank body; a desorption discharge port, an adsorption discharge port, a steam pipeline, a fire-fighting pipeline and an activated carbon delivery pipeline are arranged on the top of the tank body; a VOC sensor is installed on the adsorption discharge port, and the content of the waste gas during adsorption is effectively detected by the VOC sensor;

[0008] The steam pipe and the fire pipe are respectively installed with a steam butterfly valve and a fire butterfly valve; one end of the steam pipe extends to the inside of the tank body, and the other end is connected to the boiler; the tank body is effectively heated by the steam pipe, so that the temperature inside the tank body rises in a short time, and the activated carbon is desorbed; the activated carbon desorption effect is ensured;

[0009] As a further technical solution of the utility model, an activated carbon delivery pipeline, a pressure relief butterfly valve, a pressure sensor and a safety valve are fixedly installed on the top of the tank body; the activated carbon delivery pipeline, the pressure relief butterfly valve, the pressure sensor and the safety valve are extended to the inside of the tank body. When desorption is performed, the pressure inside the tank body is effectively guaranteed by the pressure relief butterfly valve and the pressure sensor to prevent the internal pressure from being too high.

[0010] As a further technical solution of the utility model, the adsorption discharge port is provided with a control butterfly valve between the VOC sensor and the tank body; when the value detected by the VOC sensor is greater than the set value, the control butterfly valve is closed, and steam is introduced to achieve desorption of the activated carbon; the desorbed gas is discharged through the desorption discharge port;

[0011] As a further technical solution of the utility model, a toluene recovery port is also installed at the bottom of the tank body; the interior of the tank body is filled with activated carbon through an activated carbon delivery pipeline.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. When the utility model is used, the activated carbon is filled into the tank through the activated carbon delivery pipe, and the exhaust gas enters the tank through the exhaust gas inlet, so that the activated carbon can effectively adsorb harmful components in the exhaust gas, and the adsorbed gas can be effectively detected by the VOC sensor installed on the adsorption discharge port;

[0014] 2. In the utility model, when the value detected by the VOC sensor is greater than the set value, the butterfly valve on the adsorption discharge port is closed, and the steam butterfly valve on the steam pipe is opened to heat the inside of the tank body and effectively desorb the activated carbon inside the tank body. The gas after steam desorption passes through the desorption discharge port to achieve subsequent catalytic combustion of the gas. The desorbed gas passes through the catalytic combustion equipment, and under the action of the catalyst, the organic waste gas undergoes flameless combustion at a lower temperature and is converted into carbon dioxide and water, thereby achieving waste gas purification;

[0015] 3. In the utility model, after desorption is completed, the activated carbon inside the tank body is reactivated, the butterfly valve on the desorption discharge port is closed, the steam butterfly valve on the steam pipe is closed, the exhaust gas is transported through the exhaust gas inlet, and the adsorbed gas is detected again through the VOC sensor on the adsorption discharge port to achieve the automatic cycle adsorption effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0017] Figure 2 This utility model Figure 1 main view.

[0018] Figure 3 This utility model Figure 2 Schematic diagram of the internal structure.

[0019] In the figure: 1-tank body, 2-desorption emission port, 3-VOC sensor, 4-adsorption emission port, 5-steam pipe, 6-fire fighting pipe, 7-pressure relief butterfly valve, 8-pressure sensor, 9-safety valve, 10-waste gas inlet, 11-control butterfly valve, 12-steam butterfly valve, 13-fire fighting butterfly valve, 14-toluene recovery port, 15-activated carbon delivery pipeline. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3In the embodiment of the utility model, a recycling machine carbon bed adsorption automatic control device comprises a tank body 1; an exhaust gas inlet 10 is fixedly installed at one end of the tank body 1; a desorption discharge port 2, an adsorption discharge port 4, a steam pipe 5, a fire-fighting pipe 6 and an activated carbon delivery pipe 15 are arranged on the top of the tank body 1; a VOC sensor 3 is installed on the adsorption discharge port 4;

[0022] Specifically, the steam pipe 5 and the fire-fighting pipe 6 are respectively installed with a steam butterfly valve 12 and a fire-fighting butterfly valve 13; one end of the steam pipe 5 extends to the inside of the tank body 1, and the other end is connected to the boiler.

[0023] By adopting the above technical solution, when in use, the activated carbon is filled into the tank body through the activated carbon delivery pipe 15, and the exhaust gas enters the tank body 1 through the exhaust gas inlet 10, so that the activated carbon can effectively adsorb harmful components in the exhaust gas, and the adsorbed gas can be effectively detected by the VOC sensor 3 installed on the adsorption discharge port 4;

[0024] An activated carbon delivery pipeline 15 , a pressure relief butterfly valve 7 , a pressure sensor 8 and a safety valve 9 are also fixedly installed on the top of the tank body 1 ; the activated carbon delivery pipeline 15 , the pressure relief butterfly valve 7 , the pressure sensor 8 and the safety valve 9 all extend into the interior of the tank body 1 .

[0025] In this embodiment, the adsorption discharge port 4 is provided with a control butterfly valve 11 between the VOC sensor 3 and the tank body 1;

[0026] By adopting the above technical solution, when the value detected by the VOC sensor 3 is greater than the set value, the butterfly valve on the adsorption discharge port 4 is closed, and the steam butterfly valve 12 on the steam pipe 5 is opened, so as to heat the tank body 1 and effectively desorb the activated carbon inside the tank body 1. The gas after steam desorption passes through the desorption discharge port 2 to achieve subsequent treatment of the gas. The desorbed gas passes through the catalytic combustion equipment, and under the action of the catalyst, the organic waste gas is flamelessly burned at a lower temperature and converted into carbon dioxide and water, thereby achieving waste gas purification.

[0027] The bottom of the tank body 1 is also equipped with a toluene recovery port 14; the interior of the tank body 1 is filled with activated carbon through an activated carbon delivery pipeline 15;

[0028] By adopting the above technical solution, after the desorption is completed, the activated carbon inside the tank body 1 is reactivated, the butterfly valve on the desorption discharge port 2 is closed, the steam butterfly valve 12 on the steam pipe 6 is closed, the exhaust gas is transported through the exhaust gas inlet 10, and the adsorbed gas is checked again through the VOC sensor 3 on the adsorption discharge port 4, thereby realizing the automatic circulation adsorption effect of the equipment.

[0029] The working principle of the utility model is as follows: when in use, activated carbon is filled into the tank body through the activated carbon delivery pipe 15, and the exhaust gas enters the tank body 1 through the exhaust gas inlet 10, so that the activated carbon can effectively adsorb harmful components in the exhaust gas, and the adsorbed gas can be effectively detected by the VOC sensor 3 installed on the adsorption discharge port 4;

[0030] When the value detected by the VOC sensor 3 is greater than the set value, the butterfly valve on the adsorption discharge port 4 is closed, and the steam butterfly valve 12 on the steam pipe 5 is opened, so as to heat the tank body 1 and effectively desorb the activated carbon inside the tank body 1. The gas after steam desorption passes through the desorption discharge port 2 to achieve subsequent catalytic combustion of the gas. The desorbed gas passes through the catalytic combustion equipment, and under the action of the catalyst, the organic waste gas undergoes flameless combustion at a lower temperature and is converted into carbon dioxide and water, thereby achieving waste gas purification.

[0031] After desorption is completed, the activated carbon inside the tank body 1 is reactivated, the butterfly valve on the desorption discharge port 2 is closed, the steam butterfly valve on the steam pipe 6 is closed, the exhaust gas is transported through the exhaust gas inlet 10, and the VOC sensor 3 on the adsorption discharge port 4 is used to detect the adsorbed gas passing through the adsorption discharge port 4 again, thereby realizing the automatic cycle adsorption effect of the equipment.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A recycling machine carbon bed adsorption automatic control device, characterized in that: The invention comprises a tank body (1); a waste gas inlet (10) is fixedly installed at one end of the tank body (1); a desorption discharge port (2), an adsorption discharge port (4), a steam pipe (5), a fire-fighting pipe (6) and an activated carbon delivery pipe (15) are arranged on the top of the tank body (1); a VOC sensor (3) is installed on the adsorption discharge port (4).

2. The automatic control device for carbon bed adsorption of a recycling machine according to claim 1, characterized in that: The steam pipe (5) and the fire-fighting pipe (6) are respectively installed with a steam butterfly valve (12) and a fire-fighting butterfly valve (13); one end of the steam pipe (5) extends to the inside of the tank body (1), and the other end is connected to the boiler.

3. The automatic control device for carbon bed adsorption of a recycling machine according to claim 1, characterized in that: An activated carbon delivery pipeline (15), a pressure relief butterfly valve (7), a pressure sensor (8) and a safety valve (9) are also fixedly installed on the top of the tank body (1); the activated carbon delivery pipeline (15), the pressure relief butterfly valve (7), the pressure sensor (8) and the safety valve (9) all extend into the interior of the tank body (1).

4. The automatic control device for carbon bed adsorption of a recycling machine according to claim 3 is characterized in that: The adsorption discharge port (4) is provided with a control butterfly valve (11) between the VOC sensor (3) and the tank body (1).

5. The automatic control device for carbon bed adsorption of a recycling machine according to claim 4, characterized in that: The bottom of the tank body (1) is also equipped with a toluene recovery port (14); the interior of the tank body (1) is filled with activated carbon via an activated carbon delivery pipeline (15).

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