CN107376589B - Molecular sieve adsorber for inspection and quarantine waste gas and adsorption method - Google Patents
Molecular sieve adsorber for inspection and quarantine waste gas and adsorption method Download PDFInfo
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- CN107376589B CN107376589B CN201710784493.6A CN201710784493A CN107376589B CN 107376589 B CN107376589 B CN 107376589B CN 201710784493 A CN201710784493 A CN 201710784493A CN 107376589 B CN107376589 B CN 107376589B
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- molecular sieve
- forming cylinder
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- sieve adsorber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
Abstract
The invention discloses a molecular sieve adsorber and an adsorption method for inspection and quarantine waste gas, which comprise the following steps: the forming device comprises a cover plate and a plurality of hole making rods arranged on one side of the cover plate, the hole making rods are inserted into the molecular sieve material in the forming cylinder and compact the molecular sieve material in the forming cylinder by using the cover plate, and the hole making rods form a plurality of airflow holes on the compacted molecular sieve material after the hole making devices are pulled out; in the adsorption process, the circumferential edge of a flow equalizer is hermetically connected with the edge of an upper opening of the forming cylinder, a plurality of through holes are arranged on the flow equalizer, and the through holes are in one-to-one correspondence with the positions of the airflow holes.
Description
Technical Field
The invention relates to a waste gas adsorption treatment technology, in particular to a molecular sieve adsorber for inspection and quarantine waste gas and an adsorption method.
Background
Molecular sieves refer to a class of materials having uniform micropores with pore sizes comparable to the typical molecular size. The molecular sieve has wide application, can be used as a high-efficiency drying agent, a selective adsorbent, a catalyst, an ion exchanger and the like, but has high cost for synthesizing the molecular sieve by using chemical raw materials. The molecular sieve is a crystalline silicate or aluminosilicate, which is a system of channels and cavities formed by linking silicon-oxygen tetrahedra or aluminum-oxygen tetrahedra through oxygen bridges, and has the capability of sieving fluid molecules with different sizes due to different sizes and shapes of adsorbed molecules.
In the process of inspection and quarantine of animals and plants, waste gas may be generated in the detection processes of chemical and physical means, such as chemical analysis, strong acid absorption, combustion, cooking, drying in the sun and the like, harmful components or harmful bacteria, viruses and the like in the waste gas need to be removed through equipment such as a fume hood, but before removal, harmful adsorption needs to be carried out on the waste gas, so that the harmful components are prevented from polluting the external environment, and even the health of laboratory personnel is influenced.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides a molecular sieve adsorber and an adsorption method for inspection and quarantine waste gas.
In order to achieve the purpose, the first technical scheme adopted by the invention is as follows: a molecular sieve adsorber for quarantine inspection exhaust comprising: the bottom of the forming cylinder is provided with a sealed bottom plate, the side wall of the forming cylinder is composed of a porous plate, the forming cylinder is filled with molecular sieve materials,
in the forming process, a hole making device is positioned at the upper opening of the forming cylinder, the forming device comprises a cover plate and a plurality of hole making rods arranged on one side of the cover plate, the hole making rods are inserted into the molecular sieve material in the forming cylinder and compact the molecular sieve material in the forming cylinder by using the cover plate, and the hole making rods form a plurality of airflow holes on the compacted molecular sieve material after the hole making device is pulled out;
in the adsorption process, the circumferential edge of a flow equalizer is hermetically connected with the edge of an upper opening of the forming cylinder, a plurality of through holes are arranged on the flow equalizer, and the through holes are in one-to-one correspondence with the positions of the airflow holes.
In a preferred embodiment of the invention, the length of the hole making rod is consistent with the depth of the forming cylinder.
In a preferred embodiment of the invention, at least one layer of glass fiber fabric is attached to the inner wall of the forming cylinder.
In a preferred embodiment of the invention, a plurality of air holes are densely penetrated and penetrated on a porous plate forming the side wall of the forming cylinder.
In a preferred embodiment of the present invention, the molecular sieve material is an inorganic porous material, and is formed by connecting silicon-oxygen tetrahedrons or aluminum-oxygen tetrahedrons through oxygen bridges.
In a preferred embodiment of the present invention, the flow equalizer is a cylindrical cavity structure, a plurality of through holes are arranged at the bottom of the cylindrical cavity, and the exhaust gas is introduced into the cylindrical cavity through a pipeline with an air pump.
In a preferred embodiment of the invention, a plurality of said perforating rods are arranged on said cover plate according to a ring-shaped configuration.
In a preferred embodiment of the invention, the forming tube is made of heat-resistant ceramic.
In a preferred embodiment of the present invention, the cover plate is provided with a handle.
The second technical scheme adopted by the invention is as follows: an adsorption process using a molecular sieve adsorber comprising the steps of:
s1, covering the forming cylinder with a flow equalizer, and introducing waste gas into the flow equalizer through a pipeline to make the molecular sieve material fully absorb harmful components in the waste gas;
s2, the molecular sieve material is lifted out of the forming drum integrally by lifting the glass fiber fabric, and the molecular sieve material is put into a furnace chamber for closed high-temperature sterilization treatment.
In a preferred embodiment of the present invention, the high temperature is greater than 800 ℃.
The invention solves the defects in the background technology, and has the following beneficial effects:
(1) through using the hole making device, the hole is conveniently made by adopting a pressing mode, a circle of air flow holes can be formed on the molecular sieve material by forming a circle of hole making rods which are arranged, and waste gas can deeply enter the air flow holes to be adsorbed and treated.
(2) The airflow enters the molecular sieve from the airflow holes, then fully contacts with the molecular sieve material through micropores in the molecular sieve material to form an adsorption effect, and finally the adsorbed gas is adsorbed, purified and discharged. The porous plate arranged on the side edge is provided with the air holes, so that the air flow radially penetrates through the molecular sieve material through the forming cylinder after entering the air flow holes, and the distribution of the adsorption paths is uniform.
(3) The glass fiber fabric can prevent the molecular sieve material from blocking the air holes or leaking out of the air holes, and meanwhile, the glass fiber fabric can resist high temperature, so that the molecular sieve material can be conveniently taken out at one time for high-temperature treatment.
(4) The flow equalization plates are knocked to evenly distribute exhaust gas through the ducts of the fume hood into the airflow holes.
(5) Through high-temperature treatment, harmful substances adsorbed by the molecular sieve material can be subjected to high-temperature harmless treatment, so that the molecular sieve material can be recycled. Wherein the molecular sieve material is mixed with a binder in the forming process so that the shape of the molecular sieve material is relatively stable during forming.
Drawings
The invention is further explained below with reference to the figures and examples;
FIG. 1 is an exploded view of a forming cartridge and perforator in a forming process in accordance with a preferred embodiment of the present invention;
FIG. 2 is an exploded view of a forming cylinder and a current equalizer in an adsorption process according to a preferred embodiment of the present invention;
in the figure: 1. a forming cylinder; 2. a hole making device; 3. a cover plate; 4. a handle; 5. making a hole rod; 6. air holes are formed; 7. a current equalizer; 8. a through hole; 9. and an airflow hole.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings and examples, which are simplified schematic drawings and illustrate only the basic structure of the invention in a schematic manner, and thus show only the constituents relevant to the invention.
As shown in fig. 1 and 2, a molecular sieve adsorber for quarantine exhaust gas includes: a shaping section of thick bamboo 1, shaping section of thick bamboo 1 bottom sets up sealed bottom plate, and shaping section of thick bamboo 1 lateral wall comprises the perforated plate, is filled with the molecular sieve material in the shaping section of thick bamboo 1, and inside the air current entered into the molecular sieve from air current hole 9, then through the micropore in the molecular sieve material and the abundant contact of molecular sieve material and then form the adsorption, the gas after the last absorption is adsorbed and is purified and discharge away. The porous plate arranged on the side edge is provided with the air holes 6, so that the air flow radially penetrates through the molecular sieve material through the forming cylinder 1 after entering the air flow holes 9, and the distribution of adsorption paths is uniform.
In the forming process, a hole making device 2 is positioned at the upper opening of a forming cylinder 1, the forming device comprises a cover plate 3 and a plurality of hole making rods 5 arranged on one side of the cover plate 3, the hole making rods 5 are inserted into the molecular sieve material in the forming cylinder 1 and compact the molecular sieve material in the forming cylinder 1 by using the cover plate 3, and after the hole making device 2 is pulled out, the hole making rods 5 form a plurality of airflow holes 9 on the compacted molecular sieve material; through using the hole making device 2, the hole is conveniently made by adopting a pressing mode, a circle of hole making rods 5 which are arranged are formed, a circle of airflow holes 9 can be formed on the molecular sieve material, and waste gas can deeply enter the airflow holes 9 to be subjected to waste gas adsorption treatment.
In the adsorption process, the circumferential edge of a flow equalizer 7 is hermetically connected with the edge of an upper opening of the forming barrel 1, a plurality of through holes 8 are formed in the flow equalizer 7, and the through holes 8 correspond to the airflow holes 9 in position one to one. The flow equalization plates are knocked to distribute the exhaust gas evenly through the ducts of the hood into the individual gas flow holes 9.
The length of the hole making rod 5 is consistent with the depth of the forming cylinder 1.
At least one layer of glass fiber fabric is attached to the inner wall of the forming tube 1. The glass fiber fabric can prevent the molecular sieve material from blocking the vent holes or leaking out of the vent holes 6, and meanwhile, the glass fiber fabric can resist high temperature, so that the molecular sieve material can be conveniently taken out at one time for high-temperature treatment.
A plurality of air holes 6 are densely arranged on the porous plate which forms the side wall of the forming cylinder 1.
The molecular sieve material is an inorganic porous material and is formed by connecting silicon-oxygen tetrahedron or aluminum-oxygen tetrahedron through oxygen bridge bonds.
The flow equalizer 7 is in a cylindrical cavity structure, a plurality of through holes 8 are formed in the bottom of the cylindrical cavity, and waste gas is introduced into the cylindrical cavity through a pipeline with an air pump.
A plurality of perforating rods 5 are arranged on the cover plate 3 according to an annular structure.
The forming cylinder 1 is made of heat-resistant ceramic and can be directly placed into a furnace cavity for harmless treatment.
The cover plate 3 is provided with a handle 4, so that the molecular sieve material can be conveniently molded and compacted in the molding process.
An adsorption process using a molecular sieve adsorber comprising the steps of:
s1, covering the flow equalizer 7 on the forming cylinder 1, and then introducing waste gas into the flow equalizer 7 through a pipeline to ensure that the molecular sieve material fully absorbs harmful components in the waste gas;
s2, the molecular sieve material is lifted out of the forming cylinder 1 by lifting the glass fiber fabric, and the molecular sieve material is put into a furnace chamber to be subjected to closed high-temperature sterilization treatment, wherein the high-temperature is higher than 800 ℃. Through high-temperature treatment, harmful substances adsorbed by the molecular sieve material can be subjected to high-temperature harmless treatment, so that the molecular sieve material can be recycled. Wherein the molecular sieve material is mixed with a binder in the forming process so that the shape of the molecular sieve material is relatively stable during forming.
In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. A molecular sieve adsorber for quarantine inspection exhaust comprising: the forming cylinder is characterized in that a sealed bottom plate is arranged at the bottom of the forming cylinder, the side wall of the forming cylinder consists of a porous plate, and a molecular sieve material is filled in the forming cylinder,
in the forming process, a hole making device is positioned at the upper opening of the forming cylinder, the forming device comprises a cover plate and a plurality of hole making rods arranged on one side of the cover plate, the hole making rods are inserted into the molecular sieve material in the forming cylinder and compact the molecular sieve material in the forming cylinder by using the cover plate, and the hole making rods form a plurality of airflow holes on the compacted molecular sieve material after the hole making device is pulled out;
in the adsorption process, the circumferential edge of a flow equalizer is hermetically connected with the edge of an opening on the forming cylinder, a plurality of through holes are arranged on the flow equalizer, and the through holes correspond to the airflow holes one by one;
the molecular sieve material is an inorganic porous material and is formed by connecting silicon-oxygen tetrahedrons or aluminum-oxygen tetrahedrons through oxygen bridge bonds.
2. The molecular sieve adsorber for quarantine exhaust gas according to claim 1, wherein the molecular sieve adsorber comprises: the length of the hole making rod is consistent with the depth of the forming cylinder.
3. The molecular sieve adsorber for quarantine exhaust gas according to claim 1, wherein the molecular sieve adsorber comprises: at least one layer of glass fiber fabric is attached to the inner wall of the forming cylinder.
4. The molecular sieve adsorber for quarantine exhaust gas according to claim 1, wherein the molecular sieve adsorber comprises: the perforated plate forming the side wall of the forming cylinder is provided with a plurality of air holes which are densely penetrated.
5. The molecular sieve adsorber for quarantine exhaust gas according to claim 1, wherein the molecular sieve adsorber comprises: the flow equalizer is of a cylindrical cavity structure, a plurality of through holes are formed in the bottom of the cylindrical cavity, and waste gas is introduced into the cylindrical cavity through a pipeline with an air pump.
6. The molecular sieve adsorber for quarantine exhaust gas according to claim 1, wherein the molecular sieve adsorber comprises: the plurality of hole making rods are arranged on the cover plate according to an annular structure.
7. The molecular sieve adsorber for quarantine exhaust gas according to claim 1, wherein the molecular sieve adsorber comprises: the forming cylinder is made of heat-resistant ceramic.
8. An adsorption process using the molecular sieve adsorber of any of claims 1 to 7 comprising the steps of:
s1, covering the forming cylinder with a flow equalizer, and introducing waste gas into the flow equalizer through a pipeline to make the molecular sieve material fully absorb harmful components in the waste gas;
s2, the molecular sieve material is lifted out of the forming drum integrally by lifting the glass fiber fabric, and the molecular sieve material is put into a furnace chamber for closed high-temperature sterilization treatment.
9. The adsorption method according to claim 8, wherein: the high temperature is greater than 800 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710784493.6A CN107376589B (en) | 2017-09-04 | 2017-09-04 | Molecular sieve adsorber for inspection and quarantine waste gas and adsorption method |
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| CN201710784493.6A CN107376589B (en) | 2017-09-04 | 2017-09-04 | Molecular sieve adsorber for inspection and quarantine waste gas and adsorption method |
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| CN107376589A CN107376589A (en) | 2017-11-24 |
| CN107376589B true CN107376589B (en) | 2020-08-21 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201619149U (en) * | 2010-02-26 | 2010-11-03 | 福建省农业科学院水稻研究所 | Mulching film perforator |
| CN202942782U (en) * | 2012-12-13 | 2013-05-22 | 成都源创环保工程有限公司 | Waste gas adsorption filter |
| CN103785270A (en) * | 2014-02-13 | 2014-05-14 | 南京霞光新能源科技有限公司 | Molecular sieve adsorption tower |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5423129A (en) * | 1992-12-21 | 1995-06-13 | Westinghouse Air Brake Company | Desiccant cartridge of an air dryer |
| US8398747B2 (en) * | 2009-06-23 | 2013-03-19 | Praxair Technology, Inc. | Processes for purification of acetylene |
| CN203031682U (en) * | 2012-12-07 | 2013-07-03 | 青岛瑞丰气体有限公司 | Puncher special for molecular sieve |
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- 2017-09-04 CN CN201710784493.6A patent/CN107376589B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201619149U (en) * | 2010-02-26 | 2010-11-03 | 福建省农业科学院水稻研究所 | Mulching film perforator |
| CN202942782U (en) * | 2012-12-13 | 2013-05-22 | 成都源创环保工程有限公司 | Waste gas adsorption filter |
| CN103785270A (en) * | 2014-02-13 | 2014-05-14 | 南京霞光新能源科技有限公司 | Molecular sieve adsorption tower |
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