CN212468136U - Online activation device for adsorption material - Google Patents
Online activation device for adsorption material Download PDFInfo
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- CN212468136U CN212468136U CN202020647341.9U CN202020647341U CN212468136U CN 212468136 U CN212468136 U CN 212468136U CN 202020647341 U CN202020647341 U CN 202020647341U CN 212468136 U CN212468136 U CN 212468136U
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Abstract
The utility model relates to an online activation device of adsorbing material increases the online activation device of adsorbing material in organic solvent adsorption system, and the online activation device entry of adsorbing material sets up automatic control valve. The operation time, temperature and pressure of the adsorption material on-line activation device are set after the adsorption device is desorbed in a control program, and the whole process is automatically controlled. When the system runs to the process of on-line activation of the adsorption material, the on-line activation device is started, an inlet valve of the on-line activation device is opened, the running time, the temperature and the pressure are set, a large amount of substances harmful to the adsorption effect of the adsorption material are cleaned at the beginning, the substances are collected and discharged by a discharged material collecting pipeline, after the activation is continued for a period of time, the inlet valve of the activation device is closed, and then the temperature and the pressure of the adsorption material of the adsorber are restored to the state capable of adsorption. The device solves the problems that the organic solvent adsorption-steam desorption device generates a large amount of water vapor in the organic solvent adsorption process, and tail gas at the outlet of the adsorber is difficult to reach the standard.
Description
Technical Field
The utility model relates to an online activation device and method for adsorbing materials, which are applied to an organic solvent adsorption recovery device.
Background
With the national emphasis on environmental protection, the emission standards of various regions on volatile organic gases (VOCs) in industrial waste gas are becoming stricter. For the treatment of volatile organic gases in industrial waste gases, methods such as adsorption, absorption, condensation, combustion, low-temperature plasma and the like are generally used. For the adsorption method, the tail gas is generally adsorbed by using activated carbon fiber or granular activated carbon, and the adsorbed organic solvent is blown off by using steam or heated inert gas after the adsorption is saturated. The existing adsorption device using steam desorption generally comprises the following processes: the operation sequence of the adsorption-steam desorption device is generally adsorption, desorption, drying and the like. The desorption is to blow off the organic solvent in the adsorption material, the absorber and the adsorption material also contain a large amount of water vapor after the desorption is finished, and the drying has the function of blowing off the water vapor and cooling and dehumidifying the adsorption material. The dry air is usually supplementary environmental air, and the dry air is collected into the tail gas after adsorption at an outlet. This presents two problems: firstly, the air quantity of tail gas is increased; secondly, a large amount of water vapor is brought into tail gas in the initial drying stage, so that the field environment is severe. Based on the above, the invention provides the adsorption material online activation device, which can ensure that tail gas at the outlet of the adsorption device meets the emission requirement and can solve the two problems.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aims to solve the problems that in the existing adsorption-desorption device, the drying process increases the air quantity of tail gas, so that a large amount of water vapor is brought into the environment and the tail gas at the outlet is difficult to reach the standard, and provides an online activation device and method for an adsorption material.
In order to solve the problems, the technical scheme provided by the invention is as follows: the utility model provides an online activation device of adsorption material, it includes the drying blower that adsorber and adsorber air inlet are connected, is equipped with tail gas outlet, dry gas outlet and analytic vapour export and steam inlet on the adsorber, characterized by: the outlet of the drying fan is connected with the air inlet of the absorber through a pipeline, the outlet of the drying air is connected with a cooler through a pipeline, and the outlet of the cooler is connected with the inlet of the drying fan through a circulating pipeline.
The better technical scheme of the invention is as follows: and the circulating pipeline is provided with an air supplementing pipe, and the gas source in the air supplementing pipe is environmental gas, inert gas or exhaust gas after adsorption. The circulating pipeline is provided with a demister and a detector, and the detector is one or more of a concentration detector, a humidity detector, a carbon monoxide detector and a carbon dioxide detector. The adsorber is provided with a tail gas inlet, a desorption steam outlet on the adsorber is sequentially connected with a condenser and an air inlet fan through a pipeline, and an outlet of the air inlet fan is connected with the tail gas inlet on the adsorber through a pipeline. And a replacement fan is connected between the condenser and the air inlet fan through a pipeline.
The invention also provides an on-line activation method of the adsorption material, which is realized by adopting the device and comprises the following steps:
a. closing the steam inlet valve and keeping the analysis steam outlet valve open;
b. opening a valve on an activation circulating pipeline, and activating an air inlet valve, an air outlet valve and an environmental air valve;
c. keeping a circulating water pipeline and/or a chilled water pipeline of the cooler smooth;
d. starting a fan, performing frequency conversion control, controlling low-frequency operation of the fan at the initial stage, and increasing the operation frequency of the fan;
e. the condensed materials and the water in the cooler are discharged from the bottom of the cooler;
f. opening a heating medium valve of the heater to control the outlet temperature of the heater;
g. when the temperature of the bed layer rises to the set temperature or the bed layer is heated for the set time, a heating medium valve of the heater is closed;
h. keeping the fan running, and reducing the temperature of the adsorption bed layer to a set temperature or reducing the temperature for a set time;
i. and stopping running the fan, and finishing the activation process.
j. The control process is safe, and inert gas such as nitrogen can be used for replacing ambient gas to carry out the activation process.
k. Before the activation process, namely after the desorption is finished, most of steam in the adsorber can be pumped out by an adsorption air inlet fan or an additional replacement fan, and then the activation treatment is carried out.
The principle of the invention is as follows:
(1) an online activation inlet and an online activation outlet are independently arranged on the adsorber, are separated from the tail gas discharge pipe and are automatically controlled;
(2) an on-line activation device is added to form a closed circulation loop or a return secondary adsorption loop together with the adsorber: fan → heat exchanger → adsorber → heat exchanger → fan;
or blower → heat exchanger → adsorber → heat exchanger → secondary adsorption;
(3) the online activation device is provided with a discharged material collecting pipeline;
(4) a pressure balance port or a pipeline is arranged on the gas pipeline of the online activation device;
(5) parameters such as time, temperature, pressure and the like of the adsorption material on-line activation after the desorption of the adsorber can be set in a control program, and the automatic control can be realized;
when the system runs to the on-line activation state of the adsorption material, the on-line activation device of the adsorption material is started, the inlet valve of the activation device is opened, the activation time, the temperature and the pressure are set, a large amount of substances harmful to the adsorption effect of the adsorption material are cleaned out at the beginning, the substances are collected and discharged by the discharged material collecting pipeline, after the activation is continued for a period of time, the inlet valve of the activation device is closed, and then the temperature and the pressure of the adsorption material of the adsorber are restored to the state capable of being adsorbed. The activation process is ended.
The invention can ensure that the tail gas at the outlet of the adsorption device meets the emission requirement without increasing the tail gas air quantity; in the early stage of drying, a large amount of water vapor is not brought into tail gas, so that the field environment is severe. The invention has simple structure and reliable operation.
Drawings
FIG. 1 is a flow diagram of a prior art apparatus;
FIG. 2 is a flow diagram of the apparatus of the present invention;
FIG. 3 is a flow chart of another embodiment of the present invention;
fig. 4 is a flow chart of an apparatus according to another embodiment of the present invention.
Detailed Description
Example 1
As shown in figure 2, the device comprises an absorber and a drying fan connected with an air inlet of the absorber, wherein the absorber is provided with a tail gas outlet, a drying gas outlet, a desorption gas outlet and a steam inlet, a heater is connected between the outlet of the drying fan and the air inlet of the absorber through a pipeline, the drying gas outlet is connected with a cooler through a pipeline, and the outlet of the cooler is connected with the inlet of the drying fan through a circulating pipeline. And the circulating pipeline is provided with an air supplementing pipe, and the gas source in the air supplementing pipe is environmental gas, inert gas or exhaust gas after adsorption. The circulating pipeline is provided with a demister and a detector, and the detector is one or more of a concentration detector, a humidity detector, a carbon monoxide detector and a carbon dioxide detector. The adsorber is provided with a tail gas inlet, a desorption steam outlet on the adsorber is sequentially connected with a condenser and an air inlet fan through a pipeline, and an outlet of the air inlet fan is connected with the tail gas inlet on the adsorber through a pipeline. And a replacement fan is connected between the condenser and the air inlet fan through a pipeline.
The invention also provides an on-line activation method of the adsorbing material, which is realized by the device of the invention of the claims and comprises the following steps:
a. closing the steam inlet valve and keeping the analysis steam outlet valve open;
b. opening a valve on an activation circulating pipeline, and activating an air inlet valve, an air outlet valve and an environmental air valve;
c. keeping a circulating water pipeline and/or a chilled water pipeline of the cooler smooth;
d. starting a fan, performing frequency conversion control, controlling low-frequency operation of the fan at the initial stage, and increasing the operation frequency of the fan;
e. the condensed materials and the water in the cooler are discharged from the bottom of the cooler;
f. opening a heating medium valve of the heater to control the outlet temperature of the heater;
g. when the temperature of the bed layer rises to the set temperature or the bed layer is heated for the set time, a heating medium valve of the heater is closed;
h. keeping the fan running, and reducing the temperature of the adsorption bed layer to a set temperature or reducing the temperature for a set time;
i. and stopping running the fan, and finishing the activation process.
j. The control process is safe, and inert gas such as nitrogen can be used for replacing ambient gas to carry out the activation process.
k. Before the activation process, namely after the desorption is finished, most of steam in the adsorber can be pumped out by an adsorption air inlet fan or an additional replacement fan, and then the activation treatment is carried out.
Example 2
The desorption absorber needs to be cooled and dehumidified (see the activation device 1 in the attached figure 2).
a. Closing the steam inlet valve and keeping the analysis steam outlet valve open;
b. opening a valve on an activation circulating pipeline, and activating an air inlet valve, an air outlet valve and an environmental air valve;
c. keeping a circulating water pipeline and/or a chilled water pipeline of the cooler smooth;
d. starting a fan, performing frequency conversion control, controlling low-frequency operation of the fan at the initial stage, and increasing the operation frequency of the fan;
e. the condensed materials and the water in the cooler are discharged from the bottom of the cooler;
f. opening a heating medium valve of the heater to control the outlet temperature of the heater;
g. when the temperature of the bed layer rises to the set temperature or the bed layer is heated for the set time, a heating medium valve of the heater is closed;
h. keeping the fan running, and reducing the temperature of the adsorption bed layer to a set temperature or reducing the temperature for a set time;
i. and stopping running the fan, and finishing the activation process.
j. The control process is safe, and inert gas such as nitrogen can be used for replacing ambient gas to carry out the activation process.
k. Before the activation process, i.e. after the desorption is completed, most of the steam in the adsorber can be extracted by an adsorption air inlet fan or an additional replacement fan, and then the activation treatment is carried out (see an activation device 2 shown in the attached figure 3 and an activation device 3 shown in the attached figure 4).
After the device operates for a period of time, the device is subjected to primary strengthening treatment, the heating temperature is increased, and the activation time is prolonged.
Claims (5)
1. The utility model provides an online activation device of adsorption material, it includes the drying blower that adsorber and adsorber air inlet are connected, is equipped with tail gas outlet, dry gas outlet and analytic vapour export and steam inlet on the adsorber, characterized by: the outlet of the drying fan is connected with the air inlet of the absorber through a pipeline, the outlet of the drying air is connected with a cooler through a pipeline, and the outlet of the cooler is connected with the inlet of the drying fan through a circulating pipeline.
2. The apparatus for the on-line activation of an adsorbent according to claim 1, wherein: and the circulating pipeline is provided with an air supplementing pipe, and the gas source in the air supplementing pipe is environmental gas, inert gas or exhaust gas after adsorption.
3. The apparatus for the on-line activation of an adsorbent according to claim 1, wherein: the circulating pipeline is provided with a demister and a detector, and the detector is one or more of a concentration detector, a humidity detector, a carbon monoxide detector and a carbon dioxide detector.
4. The apparatus for the on-line activation of an adsorbent according to claim 1, wherein: the adsorber is provided with a tail gas inlet, a desorption steam outlet on the adsorber is sequentially connected with a condenser and an air inlet fan through a pipeline, and an outlet of the air inlet fan is connected with the tail gas inlet on the adsorber through a pipeline.
5. The apparatus for the on-line activation of an adsorbent according to claim 4, wherein: and a replacement fan is connected between the condenser and the air inlet fan through a pipeline.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020647341.9U CN212468136U (en) | 2020-04-24 | 2020-04-24 | Online activation device for adsorption material |
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| CN202020647341.9U CN212468136U (en) | 2020-04-24 | 2020-04-24 | Online activation device for adsorption material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111482164A (en) * | 2020-04-24 | 2020-08-04 | 武汉旭日华环保科技股份有限公司 | Online adsorption material activation device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111482164A (en) * | 2020-04-24 | 2020-08-04 | 武汉旭日华环保科技股份有限公司 | Online adsorption material activation device and method |
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